diff --git a/libgo/MERGE b/libgo/MERGE
index 0be2296..9c57639 100644
--- a/libgo/MERGE
+++ b/libgo/MERGE
@@ -1,4 +1,4 @@
-cc8838d645b2b7026c1f3aaceb011775c5ca3a08
+a5bfd9da1d1b24f326399b6b75558ded14514f23
 
 The first line of this file holds the git revision number of the
 last merge done from the master library sources.
diff --git a/libgo/Makefile.am b/libgo/Makefile.am
index 4b2dd58..56d38f5 100644
--- a/libgo/Makefile.am
+++ b/libgo/Makefile.am
@@ -262,7 +262,8 @@
 	hash/adler32.gox \
 	hash/crc32.gox \
 	hash/crc64.gox \
-	hash/fnv.gox
+	hash/fnv.gox \
+	hash/maphash.gox
 
 toolexeclibgohtmldir = $(toolexeclibgodir)/html
 
@@ -402,6 +403,7 @@
 noinst_DATA = \
 	golang.org/x/net/nettest.gox \
 	internal/cfg.gox \
+	internal/obscuretestdata.gox \
 	internal/testenv.gox \
 	internal/trace.gox \
 	net/internal/socktest.gox \
diff --git a/libgo/Makefile.in b/libgo/Makefile.in
index 72c6f9c..88c6874 100644
--- a/libgo/Makefile.in
+++ b/libgo/Makefile.in
@@ -743,7 +743,8 @@
 	hash/adler32.gox \
 	hash/crc32.gox \
 	hash/crc64.gox \
-	hash/fnv.gox
+	hash/fnv.gox \
+	hash/maphash.gox
 
 toolexeclibgohtmldir = $(toolexeclibgodir)/html
 toolexeclibgohtml_DATA = \
@@ -861,9 +862,10 @@
 # internal packages nothing will explicitly depend on them.
 # Force them to be built.
 noinst_DATA = golang.org/x/net/nettest.gox internal/cfg.gox \
-	internal/testenv.gox internal/trace.gox \
-	net/internal/socktest.gox os/signal/internal/pty.gox \
-	runtime/pprof/internal/profile.gox zdefaultcc.go
+	internal/obscuretestdata.gox internal/testenv.gox \
+	internal/trace.gox net/internal/socktest.gox \
+	os/signal/internal/pty.gox runtime/pprof/internal/profile.gox \
+	zdefaultcc.go
 @LIBGO_IS_RTEMS_FALSE@rtems_task_variable_add_file = 
 @LIBGO_IS_RTEMS_TRUE@rtems_task_variable_add_file = runtime/rtems-task-variable-add.c
 runtime_context_asm_file = $(am__append_3)
diff --git a/libgo/VERSION b/libgo/VERSION
index e0f7265..da53185 100644
--- a/libgo/VERSION
+++ b/libgo/VERSION
@@ -1 +1 @@
-go1.13
+go1.14beta1
diff --git a/libgo/check-packages.txt b/libgo/check-packages.txt
index 156a2bd..48c4dfd 100644
--- a/libgo/check-packages.txt
+++ b/libgo/check-packages.txt
@@ -3,7 +3,6 @@
 bufio
 bytes
 cmd/go/internal/cache
-cmd/go/internal/dirhash
 cmd/go/internal/generate
 cmd/go/internal/get
 cmd/go/internal/imports
@@ -13,13 +12,10 @@
 cmd/go/internal/modconv
 cmd/go/internal/modfetch
 cmd/go/internal/modfetch/codehost
-cmd/go/internal/modfile
 cmd/go/internal/modload
-cmd/go/internal/module
 cmd/go/internal/mvs
 cmd/go/internal/par
 cmd/go/internal/search
-cmd/go/internal/semver
 cmd/go/internal/txtar
 cmd/go/internal/work
 cmd/internal/buildid
@@ -96,6 +92,7 @@
 hash/crc32
 hash/crc64
 hash/fnv
+hash/maphash
 html
 html/template
 image
@@ -163,6 +160,8 @@
 sync
 sync/atomic
 syscall
+testing
+testing/iotest
 testing/quick
 text/scanner
 text/tabwriter
diff --git a/libgo/configure b/libgo/configure
index 6a65a60..385ca9a 100755
--- a/libgo/configure
+++ b/libgo/configure
@@ -2544,7 +2544,7 @@
 ac_config_headers="$ac_config_headers config.h"
 
 
-libtool_VERSION=15:0:0
+libtool_VERSION=16:0:0
 
 
 # Default to --enable-multilib
diff --git a/libgo/configure.ac b/libgo/configure.ac
index d4ee59c..07c03bc 100644
--- a/libgo/configure.ac
+++ b/libgo/configure.ac
@@ -10,7 +10,7 @@
 AC_CONFIG_SRCDIR(Makefile.am)
 AC_CONFIG_HEADER(config.h)
 
-libtool_VERSION=15:0:0
+libtool_VERSION=16:0:0
 AC_SUBST(libtool_VERSION)
 
 AM_ENABLE_MULTILIB(, ..)
diff --git a/libgo/go/archive/tar/reader.go b/libgo/go/archive/tar/reader.go
index 3943718..4f9135b 100644
--- a/libgo/go/archive/tar/reader.go
+++ b/libgo/go/archive/tar/reader.go
@@ -433,7 +433,7 @@
 			// files generated by a pre-Go1.8 toolchain. If the generated file
 			// happened to have a prefix field that parses as valid
 			// atime and ctime fields (e.g., when they are valid octal strings),
-			// then it is impossible to distinguish between an valid GNU file
+			// then it is impossible to distinguish between a valid GNU file
 			// and an invalid pre-Go1.8 file.
 			//
 			// See https://golang.org/issues/12594
diff --git a/libgo/go/archive/zip/reader.go b/libgo/go/archive/zip/reader.go
index 2260b39..13ff9dd 100644
--- a/libgo/go/archive/zip/reader.go
+++ b/libgo/go/archive/zip/reader.go
@@ -8,7 +8,6 @@
 	"bufio"
 	"encoding/binary"
 	"errors"
-	"fmt"
 	"hash"
 	"hash/crc32"
 	"io"
@@ -84,9 +83,6 @@
 	if err != nil {
 		return err
 	}
-	if end.directoryRecords > uint64(size)/fileHeaderLen {
-		return fmt.Errorf("archive/zip: TOC declares impossible %d files in %d byte zip", end.directoryRecords, size)
-	}
 	z.r = r
 	z.File = make([]*File, 0, end.directoryRecords)
 	z.Comment = end.comment
diff --git a/libgo/go/archive/zip/reader_test.go b/libgo/go/archive/zip/reader_test.go
index 6b3f2f3..adca87a 100644
--- a/libgo/go/archive/zip/reader_test.go
+++ b/libgo/go/archive/zip/reader_test.go
@@ -8,6 +8,7 @@
 	"bytes"
 	"encoding/binary"
 	"encoding/hex"
+	"internal/obscuretestdata"
 	"io"
 	"io/ioutil"
 	"os"
@@ -19,11 +20,12 @@
 )
 
 type ZipTest struct {
-	Name    string
-	Source  func() (r io.ReaderAt, size int64) // if non-nil, used instead of testdata/<Name> file
-	Comment string
-	File    []ZipTestFile
-	Error   error // the error that Opening this file should return
+	Name     string
+	Source   func() (r io.ReaderAt, size int64) // if non-nil, used instead of testdata/<Name> file
+	Comment  string
+	File     []ZipTestFile
+	Obscured bool  // needed for Apple notarization (golang.org/issue/34986)
+	Error    error // the error that Opening this file should return
 }
 
 type ZipTestFile struct {
@@ -189,8 +191,12 @@
 	},
 	{
 		// created by Go, before we wrote the "optional" data
-		// descriptor signatures (which are required by OS X)
-		Name: "go-no-datadesc-sig.zip",
+		// descriptor signatures (which are required by macOS).
+		// Use obscured file to avoid Apple’s notarization service
+		// rejecting the toolchain due to an inability to unzip this archive.
+		// See golang.org/issue/34986
+		Name:     "go-no-datadesc-sig.zip.base64",
+		Obscured: true,
 		File: []ZipTestFile{
 			{
 				Name:     "foo.txt",
@@ -208,7 +214,7 @@
 	},
 	{
 		// created by Go, after we wrote the "optional" data
-		// descriptor signatures (which are required by OS X)
+		// descriptor signatures (which are required by macOS)
 		Name: "go-with-datadesc-sig.zip",
 		File: []ZipTestFile{
 			{
@@ -496,8 +502,18 @@
 		rat, size := zt.Source()
 		z, err = NewReader(rat, size)
 	} else {
+		path := filepath.Join("testdata", zt.Name)
+		if zt.Obscured {
+			tf, err := obscuretestdata.DecodeToTempFile(path)
+			if err != nil {
+				t.Errorf("obscuretestdata.DecodeToTempFile(%s): %v", path, err)
+				return
+			}
+			defer os.Remove(tf)
+			path = tf
+		}
 		var rc *ReadCloser
-		rc, err = OpenReader(filepath.Join("testdata", zt.Name))
+		rc, err = OpenReader(path)
 		if err == nil {
 			defer rc.Close()
 			z = &rc.Reader
@@ -981,15 +997,17 @@
 	}
 }
 
-// Verify the number of files is sane.
+// Verify that this particular malformed zip file is rejected.
 func TestIssue10956(t *testing.T) {
 	data := []byte("PK\x06\x06PK\x06\a0000\x00\x00\x00\x00\x00\x00\x00\x00" +
 		"0000PK\x05\x06000000000000" +
 		"0000\v\x00000\x00\x00\x00\x00\x00\x00\x000")
-	_, err := NewReader(bytes.NewReader(data), int64(len(data)))
-	const want = "TOC declares impossible 3472328296227680304 files in 57 byte"
-	if err == nil && !strings.Contains(err.Error(), want) {
-		t.Errorf("error = %v; want %q", err, want)
+	r, err := NewReader(bytes.NewReader(data), int64(len(data)))
+	if err == nil {
+		t.Errorf("got nil error, want ErrFormat")
+	}
+	if r != nil {
+		t.Errorf("got non-nil Reader, want nil")
 	}
 }
 
diff --git a/libgo/go/archive/zip/testdata/go-no-datadesc-sig.zip b/libgo/go/archive/zip/testdata/go-no-datadesc-sig.zip
deleted file mode 100644
index c3d593f..0000000
--- a/libgo/go/archive/zip/testdata/go-no-datadesc-sig.zip
+++ /dev/null
Binary files differ
diff --git a/libgo/go/archive/zip/testdata/go-no-datadesc-sig.zip.base64 b/libgo/go/archive/zip/testdata/go-no-datadesc-sig.zip.base64
new file mode 100644
index 0000000..1c2c071
--- /dev/null
+++ b/libgo/go/archive/zip/testdata/go-no-datadesc-sig.zip.base64
@@ -0,0 +1 @@
+UEsDBBQACAAAAGWHaECoZTJ+BAAAAAQAAAAHABgAZm9vLnR4dFVUBQAD3lVZT3V4CwABBPUBAAAEFAAAAGZvbwqoZTJ+BAAAAAQAAABQSwMEFAAIAAAAZodoQOmzogQEAAAABAAAAAcAGABiYXIudHh0VVQFAAPgVVlPdXgLAAEE9QEAAAQUAAAAYmFyCumzogQEAAAABAAAAFBLAQIUAxQACAAAAGWHaECoZTJ+BAAAAAQAAAAHABgAAAAAAAAAAACkgQAAAABmb28udHh0VVQFAAPeVVlPdXgLAAEE9QEAAAQUAAAAUEsBAhQDFAAIAAAAZodoQOmzogQEAAAABAAAAAcAGAAAAAAAAAAAAKSBTQAAAGJhci50eHRVVAUAA+BVWU91eAsAAQT1AQAABBQAAABQSwUGAAAAAAIAAgCaAAAAmgAAAAAA
diff --git a/libgo/go/bufio/bufio.go b/libgo/go/bufio/bufio.go
index 0f05d3b..f0810be 100644
--- a/libgo/go/bufio/bufio.go
+++ b/libgo/go/bufio/bufio.go
@@ -432,6 +432,7 @@
 	var frag []byte
 	var full [][]byte
 	var err error
+	n := 0
 	for {
 		var e error
 		frag, e = b.ReadSlice(delim)
@@ -447,18 +448,15 @@
 		buf := make([]byte, len(frag))
 		copy(buf, frag)
 		full = append(full, buf)
+		n += len(buf)
 	}
 
-	// Allocate new buffer to hold the full pieces and the fragment.
-	n := 0
-	for i := range full {
-		n += len(full[i])
-	}
 	n += len(frag)
 
-	// Copy full pieces and fragment in.
+	// Allocate new buffer to hold the full pieces and the fragment.
 	buf := make([]byte, n)
 	n = 0
+	// Copy full pieces and fragment in.
 	for i := range full {
 		n += copy(buf[n:], full[i])
 	}
@@ -708,9 +706,14 @@
 // supports the ReadFrom method, and b has no buffered data yet,
 // this calls the underlying ReadFrom without buffering.
 func (b *Writer) ReadFrom(r io.Reader) (n int64, err error) {
+	if b.err != nil {
+		return 0, b.err
+	}
 	if b.Buffered() == 0 {
 		if w, ok := b.wr.(io.ReaderFrom); ok {
-			return w.ReadFrom(r)
+			n, err = w.ReadFrom(r)
+			b.err = err
+			return n, err
 		}
 	}
 	var m int
diff --git a/libgo/go/bufio/bufio_test.go b/libgo/go/bufio/bufio_test.go
index 782ca21..9a9f102 100644
--- a/libgo/go/bufio/bufio_test.go
+++ b/libgo/go/bufio/bufio_test.go
@@ -1535,6 +1535,52 @@
 	}
 }
 
+type writerWithReadFromError struct{}
+
+func (w writerWithReadFromError) ReadFrom(r io.Reader) (int64, error) {
+	return 0, errors.New("writerWithReadFromError error")
+}
+
+func (w writerWithReadFromError) Write(b []byte) (n int, err error) {
+	return 10, nil
+}
+
+func TestWriterReadFromMustSetUnderlyingError(t *testing.T) {
+	var wr = NewWriter(writerWithReadFromError{})
+	if _, err := wr.ReadFrom(strings.NewReader("test2")); err == nil {
+		t.Fatal("expected ReadFrom returns error, got nil")
+	}
+	if _, err := wr.Write([]byte("123")); err == nil {
+		t.Fatal("expected Write returns error, got nil")
+	}
+}
+
+type writeErrorOnlyWriter struct{}
+
+func (w writeErrorOnlyWriter) Write(p []byte) (n int, err error) {
+	return 0, errors.New("writeErrorOnlyWriter error")
+}
+
+// Ensure that previous Write errors are immediately returned
+// on any ReadFrom. See golang.org/issue/35194.
+func TestWriterReadFromMustReturnUnderlyingError(t *testing.T) {
+	var wr = NewWriter(writeErrorOnlyWriter{})
+	s := "test1"
+	wantBuffered := len(s)
+	if _, err := wr.WriteString(s); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if err := wr.Flush(); err == nil {
+		t.Error("expected flush error, got nil")
+	}
+	if _, err := wr.ReadFrom(strings.NewReader("test2")); err == nil {
+		t.Fatal("expected error, got nil")
+	}
+	if buffered := wr.Buffered(); buffered != wantBuffered {
+		t.Fatalf("Buffered = %v; want %v", buffered, wantBuffered)
+	}
+}
+
 func BenchmarkReaderCopyOptimal(b *testing.B) {
 	// Optimal case is where the underlying reader implements io.WriterTo
 	srcBuf := bytes.NewBuffer(make([]byte, 8192))
diff --git a/libgo/go/bytes/bytes.go b/libgo/go/bytes/bytes.go
index eb13212..e872cc2 100644
--- a/libgo/go/bytes/bytes.go
+++ b/libgo/go/bytes/bytes.go
@@ -935,7 +935,8 @@
 }
 
 // EqualFold reports whether s and t, interpreted as UTF-8 strings,
-// are equal under Unicode case-folding.
+// are equal under Unicode case-folding, which is a more general
+// form of case-insensitivity.
 func EqualFold(s, t []byte) bool {
 	for len(s) != 0 && len(t) != 0 {
 		// Extract first rune from each.
diff --git a/libgo/go/bytes/compare_test.go b/libgo/go/bytes/compare_test.go
index a321f2e..a595d57 100644
--- a/libgo/go/bytes/compare_test.go
+++ b/libgo/go/bytes/compare_test.go
@@ -120,6 +120,39 @@
 	}
 }
 
+func TestEndianBaseCompare(t *testing.T) {
+	// This test compares byte slices that are almost identical, except one
+	// difference that for some j, a[j]>b[j] and a[j+1]<b[j+1]. If the implementation
+	// compares large chunks with wrong endianness, it gets wrong result.
+	// no vector register is larger than 512 bytes for now
+	const maxLength = 512
+	a := make([]byte, maxLength)
+	b := make([]byte, maxLength)
+	// randomish but deterministic data. No 0 or 255.
+	for i := 0; i < maxLength; i++ {
+		a[i] = byte(1 + 31*i%254)
+		b[i] = byte(1 + 31*i%254)
+	}
+	for i := 2; i <= maxLength; i <<= 1 {
+		for j := 0; j < i-1; j++ {
+			a[j] = b[j] - 1
+			a[j+1] = b[j+1] + 1
+			cmp := Compare(a[:i], b[:i])
+			if cmp != -1 {
+				t.Errorf(`CompareBbigger(%d,%d) = %d`, i, j, cmp)
+			}
+			a[j] = b[j] + 1
+			a[j+1] = b[j+1] - 1
+			cmp = Compare(a[:i], b[:i])
+			if cmp != 1 {
+				t.Errorf(`CompareAbigger(%d,%d) = %d`, i, j, cmp)
+			}
+			a[j] = b[j]
+			a[j+1] = b[j+1]
+		}
+	}
+}
+
 func BenchmarkCompareBytesEqual(b *testing.B) {
 	b1 := []byte("Hello Gophers!")
 	b2 := []byte("Hello Gophers!")
diff --git a/libgo/go/cmd/cgo/doc.go b/libgo/go/cmd/cgo/doc.go
index f227d7f..8c3bf81 100644
--- a/libgo/go/cmd/cgo/doc.go
+++ b/libgo/go/cmd/cgo/doc.go
@@ -55,7 +55,7 @@
 
 The default pkg-config tool may be changed by setting the PKG_CONFIG environment variable.
 
-For security reasons, only a limited set of flags are allowed, notably -D, -I, and -l.
+For security reasons, only a limited set of flags are allowed, notably -D, -U, -I, and -l.
 To allow additional flags, set CGO_CFLAGS_ALLOW to a regular expression
 matching the new flags. To disallow flags that would otherwise be allowed,
 set CGO_CFLAGS_DISALLOW to a regular expression matching arguments
@@ -99,7 +99,7 @@
 
 When the Go tool sees that one or more Go files use the special import
 "C", it will look for other non-Go files in the directory and compile
-them as part of the Go package. Any .c, .s, or .S files will be
+them as part of the Go package. Any .c, .s, .S or .sx files will be
 compiled with the C compiler. Any .cc, .cpp, or .cxx files will be
 compiled with the C++ compiler. Any .f, .F, .for or .f90 files will be
 compiled with the fortran compiler. Any .h, .hh, .hpp, or .hxx files will
diff --git a/libgo/go/cmd/cgo/gcc.go b/libgo/go/cmd/cgo/gcc.go
index 526d4c2..678b348 100644
--- a/libgo/go/cmd/cgo/gcc.go
+++ b/libgo/go/cmd/cgo/gcc.go
@@ -834,7 +834,7 @@
 	// Rewrite C.f(p) to
 	//    func() {
 	//            _cgo0 := p
-	//            _cgoCheckPointer(_cgo0)
+	//            _cgoCheckPointer(_cgo0, nil)
 	//            C.f(_cgo0)
 	//    }()
 	// Using a function literal like this lets us evaluate the
@@ -852,7 +852,7 @@
 	//    defer func() func() {
 	//            _cgo0 := p
 	//            return func() {
-	//                    _cgoCheckPointer(_cgo0)
+	//                    _cgoCheckPointer(_cgo0, nil)
 	//                    C.f(_cgo0)
 	//            }
 	//    }()()
@@ -939,7 +939,7 @@
 		}
 
 		fmt.Fprintf(&sb, "_cgo%d := %s; ", i, gofmtPos(arg, origArg.Pos()))
-		fmt.Fprintf(&sbCheck, "_cgoCheckPointer(_cgo%d); ", i)
+		fmt.Fprintf(&sbCheck, "_cgoCheckPointer(_cgo%d, nil); ", i)
 	}
 
 	if call.Deferred {
@@ -2211,6 +2211,11 @@
 // Type returns a *Type with the same memory layout as
 // dtype when used as the type of a variable or a struct field.
 func (c *typeConv) Type(dtype dwarf.Type, pos token.Pos) *Type {
+	return c.loadType(dtype, pos, "")
+}
+
+// loadType recursively loads the requested dtype and its dependency graph.
+func (c *typeConv) loadType(dtype dwarf.Type, pos token.Pos, parent string) *Type {
 	// Always recompute bad pointer typedefs, as the set of such
 	// typedefs changes as we see more types.
 	checkCache := true
@@ -2218,7 +2223,9 @@
 		checkCache = false
 	}
 
-	key := dtype.String()
+	// The cache key should be relative to its parent.
+	// See issue https://golang.org/issue/31891
+	key := parent + " > " + dtype.String()
 
 	if checkCache {
 		if t, ok := c.m[key]; ok {
@@ -2258,7 +2265,7 @@
 			// Translate to zero-length array instead.
 			count = 0
 		}
-		sub := c.Type(dt.Type, pos)
+		sub := c.loadType(dt.Type, pos, key)
 		t.Align = sub.Align
 		t.Go = &ast.ArrayType{
 			Len: c.intExpr(count),
@@ -2403,7 +2410,7 @@
 		c.ptrs[key] = append(c.ptrs[key], t)
 
 	case *dwarf.QualType:
-		t1 := c.Type(dt.Type, pos)
+		t1 := c.loadType(dt.Type, pos, key)
 		t.Size = t1.Size
 		t.Align = t1.Align
 		t.Go = t1.Go
@@ -2487,7 +2494,7 @@
 		}
 		name := c.Ident("_Ctype_" + dt.Name)
 		goIdent[name.Name] = name
-		sub := c.Type(dt.Type, pos)
+		sub := c.loadType(dt.Type, pos, key)
 		if c.badPointerTypedef(dt) {
 			// Treat this typedef as a uintptr.
 			s := *sub
diff --git a/libgo/go/cmd/cgo/out.go b/libgo/go/cmd/cgo/out.go
index 97886e1..4d66e1b 100644
--- a/libgo/go/cmd/cgo/out.go
+++ b/libgo/go/cmd/cgo/out.go
@@ -1638,14 +1638,14 @@
 func _cgo_runtime_cgocallback(unsafe.Pointer, unsafe.Pointer, uintptr, uintptr)
 
 //go:linkname _cgoCheckPointer runtime.cgoCheckPointer
-func _cgoCheckPointer(interface{}, ...interface{})
+func _cgoCheckPointer(interface{}, interface{})
 
 //go:linkname _cgoCheckResult runtime.cgoCheckResult
 func _cgoCheckResult(interface{})
 `
 
 const gccgoGoProlog = `
-func _cgoCheckPointer(interface{}, ...interface{})
+func _cgoCheckPointer(interface{}, interface{})
 
 func _cgoCheckResult(interface{})
 `
@@ -1832,16 +1832,16 @@
 	void *__object;
 } Eface;
 
-extern void runtimeCgoCheckPointer(Eface, Slice)
+extern void runtimeCgoCheckPointer(Eface, Eface)
 	__asm__("runtime.cgoCheckPointer")
 	__attribute__((weak));
 
-extern void localCgoCheckPointer(Eface, Slice)
+extern void localCgoCheckPointer(Eface, Eface)
 	__asm__("GCCGOSYMBOLPREF._cgoCheckPointer");
 
-void localCgoCheckPointer(Eface ptr, Slice args) {
+void localCgoCheckPointer(Eface ptr, Eface arg) {
 	if(runtimeCgoCheckPointer) {
-		runtimeCgoCheckPointer(ptr, args);
+		runtimeCgoCheckPointer(ptr, arg);
 	}
 }
 
diff --git a/libgo/go/cmd/go/alldocs.go b/libgo/go/cmd/go/alldocs.go
index ebbead5..54e7a8b 100644
--- a/libgo/go/cmd/go/alldocs.go
+++ b/libgo/go/cmd/go/alldocs.go
@@ -110,11 +110,13 @@
 // 		The default is the number of CPUs available.
 // 	-race
 // 		enable data race detection.
-// 		Supported only on linux/amd64, freebsd/amd64, darwin/amd64 and windows/amd64.
+// 		Supported only on linux/amd64, freebsd/amd64, darwin/amd64, windows/amd64,
+// 		linux/ppc64le and linux/arm64 (only for 48-bit VMA).
 // 	-msan
 // 		enable interoperation with memory sanitizer.
 // 		Supported only on linux/amd64, linux/arm64
 // 		and only with Clang/LLVM as the host C compiler.
+// 		On linux/arm64, pie build mode will be used.
 // 	-v
 // 		print the names of packages as they are compiled.
 // 	-work
@@ -143,11 +145,21 @@
 // 	-ldflags '[pattern=]arg list'
 // 		arguments to pass on each go tool link invocation.
 // 	-linkshared
-// 		link against shared libraries previously created with
-// 		-buildmode=shared.
+// 		build code that will be linked against shared libraries previously
+// 		created with -buildmode=shared.
 // 	-mod mode
-// 		module download mode to use: readonly or vendor.
+// 		module download mode to use: readonly, vendor, or mod.
 // 		See 'go help modules' for more.
+// 	-modcacherw
+// 		leave newly-created directories in the module cache read-write
+// 		instead of making them read-only.
+// 	-modfile file
+// 		in module aware mode, read (and possibly write) an alternate go.mod
+// 		file instead of the one in the module root directory. A file named
+// 		"go.mod" must still be present in order to determine the module root
+// 		directory, but it is not accessed. When -modfile is specified, an
+// 		alternate go.sum file is also used: its path is derived from the
+// 		-modfile flag by trimming the ".mod" extension and appending ".sum".
 // 	-pkgdir dir
 // 		install and load all packages from dir instead of the usual locations.
 // 		For example, when building with a non-standard configuration,
@@ -361,6 +373,8 @@
 // 		Treat a command (package main) like a regular package.
 // 		Otherwise package main's exported symbols are hidden
 // 		when showing the package's top-level documentation.
+// 	-short
+// 		One-line representation for each symbol.
 // 	-src
 // 		Show the full source code for the symbol. This will
 // 		display the full Go source of its declaration and
@@ -431,6 +445,9 @@
 // The -n flag prints commands that would be executed.
 // The -x flag prints commands as they are executed.
 //
+// The -mod flag's value sets which module download mode
+// to use: readonly or vendor. See 'go help modules' for more.
+//
 // To run gofmt with specific options, run gofmt itself.
 //
 // See also: go fix, go vet.
@@ -993,7 +1010,7 @@
 //
 // Usage:
 //
-// 	go mod download [-json] [modules]
+// 	go mod download [-x] [-json] [modules]
 //
 // Download downloads the named modules, which can be module patterns selecting
 // dependencies of the main module or module queries of the form path@version.
@@ -1018,9 +1035,10 @@
 //         Dir      string // absolute path to cached source root directory
 //         Sum      string // checksum for path, version (as in go.sum)
 //         GoModSum string // checksum for go.mod (as in go.sum)
-//         Latest   bool   // would @latest resolve to this version?
 //     }
 //
+// The -x flag causes download to print the commands download executes.
+//
 // See 'go help modules' for more about module queries.
 //
 //
@@ -1057,12 +1075,17 @@
 // add and drop an exclusion for the given module path and version.
 // Note that -exclude=path@version is a no-op if that exclusion already exists.
 //
-// The -replace=old[@v]=new[@v] and -dropreplace=old[@v] flags
-// add and drop a replacement of the given module path and version pair.
-// If the @v in old@v is omitted, the replacement applies to all versions
-// with the old module path. If the @v in new@v is omitted, the new path
-// should be a local module root directory, not a module path.
-// Note that -replace overrides any existing replacements for old[@v].
+// The -replace=old[@v]=new[@v] flag adds a replacement of the given
+// module path and version pair. If the @v in old@v is omitted, a
+// replacement without a version on the left side is added, which applies
+// to all versions of the old module path. If the @v in new@v is omitted,
+// the new path should be a local module root directory, not a module
+// path. Note that -replace overrides any redundant replacements for old[@v],
+// so omitting @v will drop existing replacements for specific versions.
+//
+// The -dropreplace=old[@v] flag drops a replacement of the given
+// module path and version pair. If the @v is omitted, a replacement without
+// a version on the left side is dropped.
 //
 // The -require, -droprequire, -exclude, -dropexclude, -replace,
 // and -dropreplace editing flags may be repeated, and the changes
@@ -1232,7 +1255,7 @@
 // If the -exec flag is not given, GOOS or GOARCH is different from the system
 // default, and a program named go_$GOOS_$GOARCH_exec can be found
 // on the current search path, 'go run' invokes the binary using that program,
-// for example 'go_nacl_386_exec a.out arguments...'. This allows execution of
+// for example 'go_js_wasm_exec a.out arguments...'. This allows execution of
 // cross-compiled programs when a simulator or other execution method is
 // available.
 //
@@ -1504,8 +1527,8 @@
 // extension will be passed to SWIG. Any file with a .swigcxx extension
 // will be passed to SWIG with the -c++ option.
 //
-// When either cgo or SWIG is used, go build will pass any .c, .m, .s,
-// or .S files to the C compiler, and any .cc, .cpp, .cxx files to the C++
+// When either cgo or SWIG is used, go build will pass any .c, .m, .s, .S
+// or .sx files to the C compiler, and any .cc, .cpp, .cxx files to the C++
 // compiler. The CC or CXX environment variables may be set to determine
 // the C or C++ compiler, respectively, to use.
 //
@@ -1588,6 +1611,10 @@
 // 		Because the entries are space-separated, flag values must
 // 		not contain spaces. Flags listed on the command line
 // 		are applied after this list and therefore override it.
+// 	GOINSECURE
+// 		Comma-separated list of glob patterns (in the syntax of Go's path.Match)
+// 		of module path prefixes that should always be fetched in an insecure
+// 		manner. Only applies to dependencies that are being fetched directly.
 // 	GOOS
 // 		The operating system for which to compile code.
 // 		Examples are linux, darwin, windows, netbsd.
@@ -1699,8 +1726,10 @@
 // 	GOHOSTOS
 // 		The operating system (GOOS) of the Go toolchain binaries.
 // 	GOMOD
-// 		The absolute path to the go.mod of the main module,
-// 		or the empty string if not using modules.
+// 		The absolute path to the go.mod of the main module.
+// 		If module-aware mode is enabled, but there is no go.mod, GOMOD will be
+// 		os.DevNull ("/dev/null" on Unix-like systems, "NUL" on Windows).
+// 		If module-aware mode is disabled, GOMOD will be the empty string.
 // 	GOTOOLDIR
 // 		The directory where the go tools (compile, cover, doc, etc...) are installed.
 //
@@ -1724,7 +1753,7 @@
 // 	.m
 // 		Objective-C source files. Only useful with cgo, and always
 // 		compiled with the OS-native compiler.
-// 	.s, .S
+// 	.s, .S, .sx
 // 		Assembler source files.
 // 		If the package uses cgo or SWIG, these will be assembled with the
 // 		OS-native assembler (typically gcc (sic)); otherwise they
@@ -2060,8 +2089,8 @@
 //
 // The GET requests sent to a Go module proxy are:
 //
-// GET $GOPROXY/<module>/@v/list returns a list of all known versions of the
-// given module, one per line.
+// GET $GOPROXY/<module>/@v/list returns a list of known versions of the given
+// module, one per line.
 //
 // GET $GOPROXY/<module>/@v/<version>.info returns JSON-formatted metadata
 // about that version of the given module.
@@ -2072,6 +2101,21 @@
 // GET $GOPROXY/<module>/@v/<version>.zip returns the zip archive
 // for that version of the given module.
 //
+// GET $GOPROXY/<module>/@latest returns JSON-formatted metadata about the
+// latest known version of the given module in the same format as
+// <module>/@v/<version>.info. The latest version should be the version of
+// the module the go command may use if <module>/@v/list is empty or no
+// listed version is suitable. <module>/@latest is optional and may not
+// be implemented by a module proxy.
+//
+// When resolving the latest version of a module, the go command will request
+// <module>/@v/list, then, if no suitable versions are found, <module>/@latest.
+// The go command prefers, in order: the semantically highest release version,
+// the semantically highest pre-release version, and the chronologically
+// most recent pseudo-version. In Go 1.12 and earlier, the go command considered
+// pseudo-versions in <module>/@v/list to be pre-release versions, but this is
+// no longer true since Go 1.13.
+//
 // To avoid problems when serving from case-sensitive file systems,
 // the <module> and <version> elements are case-encoded, replacing every
 // uppercase letter with an exclamation mark followed by the corresponding
@@ -2460,6 +2504,9 @@
 // directory holds the correct copies of dependencies and ignores
 // the dependency descriptions in go.mod.
 //
+// If invoked with -mod=mod, the go command loads modules from the module cache
+// even if there is a vendor directory present.
+//
 // Pseudo-versions
 //
 // The go.mod file and the go command more generally use semantic versions as
diff --git a/libgo/go/cmd/go/go_test.go b/libgo/go/cmd/go/go_test.go
index f936d70..ebd0c7a 100644
--- a/libgo/go/cmd/go/go_test.go
+++ b/libgo/go/cmd/go/go_test.go
@@ -56,7 +56,7 @@
 
 func init() {
 	switch runtime.GOOS {
-	case "android", "js", "nacl":
+	case "android", "js":
 		canRun = false
 	case "darwin":
 		switch runtime.GOARCH {
@@ -206,7 +206,7 @@
 		// (installed in GOROOT/pkg/tool/GOOS_GOARCH).
 		// If these are not the same toolchain, then the entire standard library
 		// will look out of date (the compilers in those two different tool directories
-		// are built for different architectures and have different buid IDs),
+		// are built for different architectures and have different build IDs),
 		// which will cause many tests to do unnecessary rebuilds and some
 		// tests to attempt to overwrite the installed standard library.
 		// Bail out entirely in this case.
@@ -683,8 +683,11 @@
 	// If we have changed the working directory, make sure we have
 	// an absolute path, because we are going to change directory
 	// back before we remove the temporary.
-	if tg.wd != "" && !filepath.IsAbs(path) {
-		path = filepath.Join(tg.pwd(), path)
+	if !filepath.IsAbs(path) {
+		if tg.wd == "" || strings.HasPrefix(tg.wd, testGOROOT) {
+			tg.t.Fatalf("internal testsuite error: creatingTemp(%q) within GOROOT/src", path)
+		}
+		path = filepath.Join(tg.wd, path)
 	}
 	tg.must(robustio.RemoveAll(path))
 	tg.temps = append(tg.temps, path)
@@ -917,6 +920,7 @@
 		"src/runtime",
 		"src/internal/bytealg",
 		"src/internal/cpu",
+		"src/math/bits",
 		"src/unsafe",
 		filepath.Join("pkg", runtime.GOOS+"_"+runtime.GOARCH),
 		filepath.Join("pkg/tool", runtime.GOOS+"_"+runtime.GOARCH),
@@ -942,7 +946,7 @@
 					return err
 				}
 				tg.tempFile(dest, string(data))
-				if err := os.Chmod(tg.path(dest), info.Mode()); err != nil {
+				if err := os.Chmod(tg.path(dest), info.Mode()|0200); err != nil {
 					return err
 				}
 				return nil
@@ -1007,128 +1011,6 @@
 	tg.wantNotStale("p1", "", "./testgo list claims p1 is stale after building with old release")
 }
 
-func testLocalRun(tg *testgoData, exepath, local, match string) {
-	tg.t.Helper()
-	out, err := exec.Command(exepath).Output()
-	if err != nil {
-		tg.t.Fatalf("error running %v: %v", exepath, err)
-	}
-	if !regexp.MustCompile(match).Match(out) {
-		tg.t.Log(string(out))
-		tg.t.Errorf("testdata/%s/easy.go did not generate expected output", local)
-	}
-}
-
-func testLocalEasy(tg *testgoData, local string) {
-	tg.t.Helper()
-	exepath := "./easy" + exeSuffix
-	tg.creatingTemp(exepath)
-	tg.run("build", "-o", exepath, filepath.Join("testdata", local, "easy.go"))
-	testLocalRun(tg, exepath, local, `(?m)^easysub\.Hello`)
-}
-
-func testLocalEasySub(tg *testgoData, local string) {
-	tg.t.Helper()
-	exepath := "./easysub" + exeSuffix
-	tg.creatingTemp(exepath)
-	tg.run("build", "-o", exepath, filepath.Join("testdata", local, "easysub", "main.go"))
-	testLocalRun(tg, exepath, local, `(?m)^easysub\.Hello`)
-}
-
-func testLocalHard(tg *testgoData, local string) {
-	tg.t.Helper()
-	exepath := "./hard" + exeSuffix
-	tg.creatingTemp(exepath)
-	tg.run("build", "-o", exepath, filepath.Join("testdata", local, "hard.go"))
-	testLocalRun(tg, exepath, local, `(?m)^sub\.Hello`)
-}
-
-func testLocalInstall(tg *testgoData, local string) {
-	tg.t.Helper()
-	tg.runFail("install", filepath.Join("testdata", local, "easy.go"))
-}
-
-func TestLocalImportsEasy(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	testLocalEasy(tg, "local")
-}
-
-func TestLocalImportsEasySub(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	testLocalEasySub(tg, "local")
-}
-
-func TestLocalImportsHard(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	testLocalHard(tg, "local")
-}
-
-func TestLocalImportsGoInstallShouldFail(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	testLocalInstall(tg, "local")
-}
-
-const badDirName = `#$%:, &()*;<=>?\^{}`
-
-func copyBad(tg *testgoData) {
-	tg.t.Helper()
-	if runtime.GOOS == "windows" {
-		tg.t.Skipf("skipping test because %q is an invalid directory name", badDirName)
-	}
-
-	tg.must(filepath.Walk("testdata/local",
-		func(path string, info os.FileInfo, err error) error {
-			if err != nil {
-				return err
-			}
-			if info.IsDir() {
-				return nil
-			}
-			var data []byte
-			data, err = ioutil.ReadFile(path)
-			if err != nil {
-				return err
-			}
-			newpath := strings.Replace(path, "local", badDirName, 1)
-			tg.tempFile(newpath, string(data))
-			return nil
-		}))
-	tg.cd(tg.path("."))
-}
-
-func TestBadImportsEasy(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	// TODO: tg.parallel()
-	copyBad(tg)
-	testLocalEasy(tg, badDirName)
-}
-
-func TestBadImportsEasySub(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	copyBad(tg)
-	testLocalEasySub(tg, badDirName)
-}
-
-func TestBadImportsHard(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	copyBad(tg)
-	testLocalHard(tg, badDirName)
-}
-
-func TestBadImportsGoInstallShouldFail(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	copyBad(tg)
-	testLocalInstall(tg, badDirName)
-}
-
 func TestInternalPackagesInGOROOTAreRespected(t *testing.T) {
 	skipIfGccgo(t, "gccgo does not have GOROOT")
 	tg := testgo(t)
@@ -1166,48 +1048,6 @@
 	tg.grepStderr("hello, world", "did not find hello, world")
 }
 
-func testMove(t *testing.T, vcs, url, base, config string) {
-	testenv.MustHaveExternalNetwork(t)
-
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.parallel()
-	tg.tempDir("src")
-	tg.must(os.Mkdir(tg.path(".hg"), 0700))
-	tg.must(ioutil.WriteFile(filepath.Join(tg.path(".hg"), "hgrc"), nil, 0600))
-	tg.setenv("GOPATH", tg.path("."))
-	tg.run("get", "-d", url)
-	tg.run("get", "-d", "-u", url)
-	switch vcs {
-	case "svn":
-		// SVN doesn't believe in text files so we can't just edit the config.
-		// Check out a different repo into the wrong place.
-		tg.must(robustio.RemoveAll(tg.path("src/code.google.com/p/rsc-svn")))
-		tg.run("get", "-d", "-u", "code.google.com/p/rsc-svn2/trunk")
-		tg.must(os.Rename(tg.path("src/code.google.com/p/rsc-svn2"), tg.path("src/code.google.com/p/rsc-svn")))
-	default:
-		path := tg.path(filepath.Join("src", config))
-		data, err := ioutil.ReadFile(path)
-		tg.must(err)
-		data = bytes.ReplaceAll(data, []byte(base), []byte(base+"XXX"))
-		tg.must(ioutil.WriteFile(path, data, 0644))
-	}
-	if vcs == "git" {
-		// git will ask for a username and password when we
-		// run go get -d -f -u. An empty username and
-		// password will work. Prevent asking by setting
-		// GIT_ASKPASS.
-		tg.creatingTemp("sink" + exeSuffix)
-		tg.tempFile("src/sink/sink.go", `package main; func main() {}`)
-		tg.run("build", "-o", "sink"+exeSuffix, "sink")
-		tg.setenv("GIT_ASKPASS", filepath.Join(tg.pwd(), "sink"+exeSuffix))
-	}
-	tg.runFail("get", "-d", "-u", url)
-	tg.grepStderr("is a custom import path for", "go get -d -u "+url+" failed for wrong reason")
-	tg.runFail("get", "-d", "-f", "-u", url)
-	tg.grepStderr("validating server certificate|[nN]ot [fF]ound", "go get -d -f -u "+url+" failed for wrong reason")
-}
-
 func TestInternalPackageErrorsAreHandled(t *testing.T) {
 	tg := testgo(t)
 	defer tg.cleanup()
@@ -1222,21 +1062,6 @@
 	tg.grepStderr("internal", "did not fail to build p")
 }
 
-func TestMoveGit(t *testing.T) {
-	testenv.MustHaveExecPath(t, "git")
-	testMove(t, "git", "rsc.io/pdf", "pdf", "rsc.io/pdf/.git/config")
-}
-
-func TestMoveHG(t *testing.T) {
-	testenv.MustHaveExecPath(t, "hg")
-	testMove(t, "hg", "vcs-test.golang.org/go/custom-hg-hello", "custom-hg-hello", "vcs-test.golang.org/go/custom-hg-hello/.hg/hgrc")
-}
-
-// TODO(rsc): Set up a test case on SourceForge (?) for svn.
-// func testMoveSVN(t *testing.T) {
-//	testMove(t, "svn", "code.google.com/p/rsc-svn/trunk", "-", "-")
-// }
-
 func TestImportCommandMatch(t *testing.T) {
 	tg := testgo(t)
 	defer tg.cleanup()
@@ -1435,17 +1260,6 @@
 	tg.run(append([]string{"test"}, files...)...)
 }
 
-func TestNonCanonicalImportPaths(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.parallel()
-	tg.setenv("GOPATH", filepath.Join(tg.pwd(), "testdata"))
-	tg.runFail("build", "canonical/d")
-	tg.grepStderr("package canonical/d", "did not report canonical/d")
-	tg.grepStderr("imports canonical/b", "did not report canonical/b")
-	tg.grepStderr("imports canonical/a/: non-canonical", "did not report canonical/a/")
-}
-
 func TestVersionControlErrorMessageIncludesCorrectDirectory(t *testing.T) {
 	tg := testgo(t)
 	defer tg.cleanup()
@@ -1502,72 +1316,6 @@
 	tg.grepStderr("cannot install, GOBIN must be an absolute path", "go install must fail if $GOBIN is a relative path")
 }
 
-// Test that without $GOBIN set, binaries get installed
-// into the GOPATH bin directory.
-func TestInstallIntoGOPATH(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.creatingTemp("testdata/bin/go-cmd-test" + exeSuffix)
-	tg.setenv("GOPATH", filepath.Join(tg.pwd(), "testdata"))
-	tg.run("install", "go-cmd-test")
-	tg.wantExecutable("testdata/bin/go-cmd-test"+exeSuffix, "go install go-cmd-test did not write to testdata/bin/go-cmd-test")
-}
-
-// Issue 12407
-func TestBuildOutputToDevNull(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	fi1, err1 := os.Lstat(os.DevNull)
-	tg.setenv("GOPATH", filepath.Join(tg.pwd(), "testdata"))
-	tg.run("build", "-o", os.DevNull, "go-cmd-test")
-	fi2, err2 := os.Lstat(os.DevNull)
-	if err1 == nil {
-		if err2 != nil {
-			t.Errorf("second stat of /dev/null failed: %v", err2)
-		} else if !os.SameFile(fi1, fi2) {
-			t.Errorf("/dev/null changed: now %v was %v", fi1, fi2)
-		}
-	}
-}
-
-// Issue 28549.
-func TestTestOutputToDevNull(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	fi1, err1 := os.Lstat(os.DevNull)
-	tg.makeTempdir()
-	tg.setenv("GOPATH", tg.path("."))
-	tg.tempFile("src/p/p.go", "package p\n")
-	tg.tempFile("src/p/p_test.go", "package p\nimport \"testing\"\nfunc TestX(t *testing.T) {}\n")
-	tg.run("test", "-o", os.DevNull, "-c", "p")
-	tg.mustNotExist("p.test")
-	fi2, err2 := os.Lstat(os.DevNull)
-	if err1 == nil {
-		if err2 != nil {
-			t.Errorf("second stat of /dev/null failed: %v", err2)
-		} else if !os.SameFile(fi1, fi2) {
-			t.Errorf("/dev/null changed: now %v was %v", fi1, fi2)
-		}
-	}
-}
-
-func TestPackageMainTestImportsArchiveNotBinary(t *testing.T) {
-	tooSlow(t)
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.parallel()
-	gobin := filepath.Join(tg.pwd(), "testdata", "bin")
-	tg.creatingTemp(gobin)
-	tg.setenv("GOBIN", gobin)
-	tg.setenv("GOPATH", filepath.Join(tg.pwd(), "testdata"))
-	tg.must(os.Chtimes("./testdata/src/main_test/m.go", time.Now(), time.Now()))
-	tg.sleep()
-	tg.run("test", "main_test")
-	tg.run("install", "main_test")
-	tg.wantNotStale("main_test", "", "after go install, main listed as stale")
-	tg.run("test", "main_test")
-}
-
 func TestPackageMainTestCompilerFlags(t *testing.T) {
 	tg := testgo(t)
 	defer tg.cleanup()
@@ -1600,51 +1348,6 @@
 	tg.wantNotStale("io", "", "with trailing slash in GOROOT, io listed as stale")
 }
 
-// With $GOBIN set, binaries get installed to $GOBIN.
-func TestInstallIntoGOBIN(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	gobin := filepath.Join(tg.pwd(), "testdata", "bin1")
-	tg.creatingTemp(gobin)
-	tg.setenv("GOBIN", gobin)
-	tg.setenv("GOPATH", filepath.Join(tg.pwd(), "testdata"))
-	tg.run("install", "go-cmd-test")
-	tg.wantExecutable("testdata/bin1/go-cmd-test"+exeSuffix, "go install go-cmd-test did not write to testdata/bin1/go-cmd-test")
-}
-
-// Issue 11065
-func TestInstallToCurrentDirectoryCreatesExecutable(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	pkg := filepath.Join(tg.pwd(), "testdata", "src", "go-cmd-test")
-	tg.creatingTemp(filepath.Join(pkg, "go-cmd-test"+exeSuffix))
-	tg.setenv("GOBIN", pkg)
-	tg.setenv("GOPATH", filepath.Join(tg.pwd(), "testdata"))
-	tg.cd(pkg)
-	tg.run("install")
-	tg.wantExecutable("go-cmd-test"+exeSuffix, "go install did not write to current directory")
-}
-
-// Without $GOBIN set, installing a program outside $GOPATH should fail
-// (there is nowhere to install it).
-func TestInstallWithoutDestinationFails(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.runFail("install", "testdata/src/go-cmd-test/helloworld.go")
-	tg.grepStderr("no install location for .go files listed on command line", "wrong error")
-}
-
-// With $GOBIN set, should install there.
-func TestInstallToGOBINCommandLinePackage(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	gobin := filepath.Join(tg.pwd(), "testdata", "bin1")
-	tg.creatingTemp(gobin)
-	tg.setenv("GOBIN", gobin)
-	tg.run("install", "testdata/src/go-cmd-test/helloworld.go")
-	tg.wantExecutable("testdata/bin1/helloworld"+exeSuffix, "go install testdata/src/go-cmd-test/helloworld.go did not write testdata/bin1/helloworld")
-}
-
 func TestGoGetNonPkg(t *testing.T) {
 	testenv.MustHaveExternalNetwork(t)
 	testenv.MustHaveExecPath(t, "git")
@@ -1674,94 +1377,6 @@
 	tg.run("get", "-t", "golang.org/x/tour/content...")
 }
 
-func TestInstalls(t *testing.T) {
-	if testing.Short() {
-		t.Skip("don't install into GOROOT in short mode")
-	}
-
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.parallel()
-	tg.tempDir("gobin")
-	tg.setenv("GOPATH", tg.path("."))
-	goroot := runtime.GOROOT()
-	tg.setenv("GOROOT", goroot)
-
-	// cmd/fix installs into tool
-	tg.run("env", "GOOS")
-	goos := strings.TrimSpace(tg.getStdout())
-	tg.setenv("GOOS", goos)
-	tg.run("env", "GOARCH")
-	goarch := strings.TrimSpace(tg.getStdout())
-	tg.setenv("GOARCH", goarch)
-	fixbin := filepath.Join(goroot, "pkg", "tool", goos+"_"+goarch, "fix") + exeSuffix
-	tg.must(robustio.RemoveAll(fixbin))
-	tg.run("install", "cmd/fix")
-	tg.wantExecutable(fixbin, "did not install cmd/fix to $GOROOT/pkg/tool")
-	tg.must(os.Remove(fixbin))
-	tg.setenv("GOBIN", tg.path("gobin"))
-	tg.run("install", "cmd/fix")
-	tg.wantExecutable(fixbin, "did not install cmd/fix to $GOROOT/pkg/tool with $GOBIN set")
-	tg.unsetenv("GOBIN")
-
-	// gopath program installs into GOBIN
-	tg.tempFile("src/progname/p.go", `package main; func main() {}`)
-	tg.setenv("GOBIN", tg.path("gobin"))
-	tg.run("install", "progname")
-	tg.unsetenv("GOBIN")
-	tg.wantExecutable(tg.path("gobin/progname")+exeSuffix, "did not install progname to $GOBIN/progname")
-
-	// gopath program installs into GOPATH/bin
-	tg.run("install", "progname")
-	tg.wantExecutable(tg.path("bin/progname")+exeSuffix, "did not install progname to $GOPATH/bin/progname")
-}
-
-func TestRejectRelativeDotPathInGOPATHCommandLinePackage(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.setenv("GOPATH", ".")
-	tg.runFail("build", "testdata/src/go-cmd-test/helloworld.go")
-	tg.grepStderr("GOPATH entry is relative", "expected an error message rejecting relative GOPATH entries")
-}
-
-func TestRejectRelativePathsInGOPATH(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	sep := string(filepath.ListSeparator)
-	tg.setenv("GOPATH", sep+filepath.Join(tg.pwd(), "testdata")+sep+".")
-	tg.runFail("build", "go-cmd-test")
-	tg.grepStderr("GOPATH entry is relative", "expected an error message rejecting relative GOPATH entries")
-}
-
-func TestRejectRelativePathsInGOPATHCommandLinePackage(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.setenv("GOPATH", "testdata")
-	tg.runFail("build", "testdata/src/go-cmd-test/helloworld.go")
-	tg.grepStderr("GOPATH entry is relative", "expected an error message rejecting relative GOPATH entries")
-}
-
-// Issue 21928.
-func TestRejectBlankPathsInGOPATH(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	sep := string(filepath.ListSeparator)
-	tg.setenv("GOPATH", " "+sep+filepath.Join(tg.pwd(), "testdata"))
-	tg.runFail("build", "go-cmd-test")
-	tg.grepStderr("GOPATH entry is relative", "expected an error message rejecting relative GOPATH entries")
-}
-
-// Issue 21928.
-func TestIgnoreEmptyPathsInGOPATH(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.creatingTemp("testdata/bin/go-cmd-test" + exeSuffix)
-	sep := string(filepath.ListSeparator)
-	tg.setenv("GOPATH", ""+sep+filepath.Join(tg.pwd(), "testdata"))
-	tg.run("install", "go-cmd-test")
-	tg.wantExecutable("testdata/bin/go-cmd-test"+exeSuffix, "go install go-cmd-test did not write to testdata/bin/go-cmd-test")
-}
-
 // Issue 4104.
 func TestGoTestWithPackageListedMultipleTimes(t *testing.T) {
 	tooSlow(t)
@@ -2547,57 +2162,6 @@
 	checkCoverage(tg, data)
 }
 
-// Check that coverage analysis uses set mode.
-// Also check that coverage profiles merge correctly.
-func TestCoverageUsesSetMode(t *testing.T) {
-	skipIfGccgo(t, "gccgo has no cover tool")
-	tooSlow(t)
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.creatingTemp("testdata/cover.out")
-	tg.run("test", "-short", "-cover", "encoding/binary", "errors", "-coverprofile=testdata/cover.out")
-	data := tg.getStdout() + tg.getStderr()
-	if out, err := ioutil.ReadFile("testdata/cover.out"); err != nil {
-		t.Error(err)
-	} else {
-		if !bytes.Contains(out, []byte("mode: set")) {
-			t.Error("missing mode: set")
-		}
-		if !bytes.Contains(out, []byte("errors.go")) {
-			t.Error("missing errors.go")
-		}
-		if !bytes.Contains(out, []byte("binary.go")) {
-			t.Error("missing binary.go")
-		}
-		if bytes.Count(out, []byte("mode: set")) != 1 {
-			t.Error("too many mode: set")
-		}
-	}
-	checkCoverage(tg, data)
-}
-
-func TestCoverageUsesAtomicModeForRace(t *testing.T) {
-	tooSlow(t)
-	if !canRace {
-		t.Skip("skipping because race detector not supported")
-	}
-	skipIfGccgo(t, "gccgo has no cover tool")
-
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.creatingTemp("testdata/cover.out")
-	tg.run("test", "-short", "-race", "-cover", "encoding/binary", "-coverprofile=testdata/cover.out")
-	data := tg.getStdout() + tg.getStderr()
-	if out, err := ioutil.ReadFile("testdata/cover.out"); err != nil {
-		t.Error(err)
-	} else {
-		if !bytes.Contains(out, []byte("mode: atomic")) {
-			t.Error("missing mode: atomic")
-		}
-	}
-	checkCoverage(tg, data)
-}
-
 func TestCoverageSyncAtomicImport(t *testing.T) {
 	skipIfGccgo(t, "gccgo has no cover tool")
 	tooSlow(t)
@@ -3092,53 +2656,6 @@
 	tg.runFail("test", "notest")
 }
 
-// cmd/go: go test -a foo does not rebuild regexp.
-func TestIssue6844(t *testing.T) {
-	if testing.Short() {
-		t.Skip("don't rebuild the standard library in short mode")
-	}
-
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.creatingTemp("deps.test" + exeSuffix)
-	tg.run("test", "-x", "-a", "-c", "testdata/dep_test.go")
-	tg.grepStderr("regexp", "go test -x -a -c testdata/dep-test.go did not rebuild regexp")
-}
-
-func TestBuildDashIInstallsDependencies(t *testing.T) {
-	tooSlow(t)
-
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.parallel()
-	tg.tempFile("src/x/y/foo/foo.go", `package foo
-		func F() {}`)
-	tg.tempFile("src/x/y/bar/bar.go", `package bar
-		import "x/y/foo"
-		func F() { foo.F() }`)
-	tg.setenv("GOPATH", tg.path("."))
-
-	// don't let build -i overwrite runtime
-	tg.wantNotStale("runtime", "", "must be non-stale before build -i")
-
-	checkbar := func(desc string) {
-		tg.run("build", "-v", "-i", "x/y/bar")
-		tg.grepBoth("x/y/foo", "first build -i "+desc+" did not build x/y/foo")
-		tg.run("build", "-v", "-i", "x/y/bar")
-		tg.grepBothNot("x/y/foo", "second build -i "+desc+" built x/y/foo")
-	}
-	checkbar("pkg")
-
-	tg.creatingTemp("bar" + exeSuffix)
-	tg.sleep()
-	tg.tempFile("src/x/y/foo/foo.go", `package foo
-		func F() { F() }`)
-	tg.tempFile("src/x/y/bar/bar.go", `package main
-		import "x/y/foo"
-		func main() { foo.F() }`)
-	checkbar("cmd")
-}
-
 func TestGoBuildTestOnly(t *testing.T) {
 	tg := testgo(t)
 	defer tg.cleanup()
@@ -3423,95 +2940,6 @@
 	tg.run("get", "./pprof_mac_fix")
 }
 
-// Test that you cannot import a main package.
-// See golang.org/issue/4210 and golang.org/issue/17475.
-func TestImportMain(t *testing.T) {
-	tooSlow(t)
-
-	tg := testgo(t)
-	tg.parallel()
-	defer tg.cleanup()
-
-	// Importing package main from that package main's test should work.
-	tg.tempFile("src/x/main.go", `package main
-		var X int
-		func main() {}`)
-	tg.tempFile("src/x/main_test.go", `package main_test
-		import xmain "x"
-		import "testing"
-		var _ = xmain.X
-		func TestFoo(t *testing.T) {}
-	`)
-	tg.setenv("GOPATH", tg.path("."))
-	tg.creatingTemp("x" + exeSuffix)
-	tg.run("build", "x")
-	tg.run("test", "x")
-
-	// Importing package main from another package should fail.
-	tg.tempFile("src/p1/p.go", `package p1
-		import xmain "x"
-		var _ = xmain.X
-	`)
-	tg.runFail("build", "p1")
-	tg.grepStderr("import \"x\" is a program, not an importable package", "did not diagnose package main")
-
-	// ... even in that package's test.
-	tg.tempFile("src/p2/p.go", `package p2
-	`)
-	tg.tempFile("src/p2/p_test.go", `package p2
-		import xmain "x"
-		import "testing"
-		var _ = xmain.X
-		func TestFoo(t *testing.T) {}
-	`)
-	tg.run("build", "p2")
-	tg.runFail("test", "p2")
-	tg.grepStderr("import \"x\" is a program, not an importable package", "did not diagnose package main")
-
-	// ... even if that package's test is an xtest.
-	tg.tempFile("src/p3/p.go", `package p
-	`)
-	tg.tempFile("src/p3/p_test.go", `package p_test
-		import xmain "x"
-		import "testing"
-		var _ = xmain.X
-		func TestFoo(t *testing.T) {}
-	`)
-	tg.run("build", "p3")
-	tg.runFail("test", "p3")
-	tg.grepStderr("import \"x\" is a program, not an importable package", "did not diagnose package main")
-
-	// ... even if that package is a package main
-	tg.tempFile("src/p4/p.go", `package main
-	func main() {}
-	`)
-	tg.tempFile("src/p4/p_test.go", `package main
-		import xmain "x"
-		import "testing"
-		var _ = xmain.X
-		func TestFoo(t *testing.T) {}
-	`)
-	tg.creatingTemp("p4" + exeSuffix)
-	tg.run("build", "p4")
-	tg.runFail("test", "p4")
-	tg.grepStderr("import \"x\" is a program, not an importable package", "did not diagnose package main")
-
-	// ... even if that package is a package main using an xtest.
-	tg.tempFile("src/p5/p.go", `package main
-	func main() {}
-	`)
-	tg.tempFile("src/p5/p_test.go", `package main_test
-		import xmain "x"
-		import "testing"
-		var _ = xmain.X
-		func TestFoo(t *testing.T) {}
-	`)
-	tg.creatingTemp("p5" + exeSuffix)
-	tg.run("build", "p5")
-	tg.runFail("test", "p5")
-	tg.grepStderr("import \"x\" is a program, not an importable package", "did not diagnose package main")
-}
-
 // Test that you cannot use a local import in a package
 // accessed by a non-local import (found in a GOPATH/GOROOT).
 // See golang.org/issue/17475.
@@ -3822,7 +3250,17 @@
 	cgo := strings.TrimSpace(tg.stdout.String())
 	old, err := os.Stat(cgo)
 	tg.must(err)
-	tg.run("test", "-race", "-i", "runtime/race")
+
+	// For this test, we don't actually care whether 'go test -race -i' succeeds.
+	// It may fail, for example, if GOROOT was installed from source as root and
+	// is now read-only.
+	// We only care that — regardless of whether it succeeds — it does not
+	// overwrite cmd/cgo.
+	runArgs := []string{"test", "-race", "-i", "runtime/race"}
+	if status := tg.doRun(runArgs); status != nil {
+		tg.t.Logf("go %v failure ignored: %v", runArgs, status)
+	}
+
 	new, err := os.Stat(cgo)
 	tg.must(err)
 	if !new.ModTime().Equal(old.ModTime()) {
@@ -4688,23 +4126,19 @@
 	return err2
 }
 
+// TestExecutableGOROOT verifies that the cmd/go binary itself uses
+// os.Executable (when available) to locate GOROOT.
 func TestExecutableGOROOT(t *testing.T) {
 	skipIfGccgo(t, "gccgo has no GOROOT")
-	if runtime.GOOS == "openbsd" {
-		t.Skipf("test case does not work on %s, missing os.Executable", runtime.GOOS)
-	}
 
-	// Env with no GOROOT.
-	var env []string
-	for _, e := range os.Environ() {
-		if !strings.HasPrefix(e, "GOROOT=") {
-			env = append(env, e)
-		}
-	}
+	// Note: Must not call tg methods inside subtests: tg is attached to outer t.
+	tg := testgo(t)
+	tg.unsetenv("GOROOT")
+	defer tg.cleanup()
 
 	check := func(t *testing.T, exe, want string) {
 		cmd := exec.Command(exe, "env", "GOROOT")
-		cmd.Env = env
+		cmd.Env = tg.env
 		out, err := cmd.CombinedOutput()
 		if err != nil {
 			t.Fatalf("%s env GOROOT: %v, %s", exe, err, out)
@@ -4724,10 +4158,6 @@
 		}
 	}
 
-	// Note: Must not call tg methods inside subtests: tg is attached to outer t.
-	tg := testgo(t)
-	defer tg.cleanup()
-
 	tg.makeTempdir()
 	tg.tempDir("new/bin")
 	newGoTool := tg.path("new/bin/go" + exeSuffix)
@@ -4774,8 +4204,9 @@
 		}
 
 		cmd := exec.Command(newGoTool, "run", "testdata/print_goroot.go")
-		cmd.Env = env
-		out, err := cmd.CombinedOutput()
+		cmd.Env = tg.env
+		cmd.Stderr = os.Stderr
+		out, err := cmd.Output()
 		if err != nil {
 			t.Fatalf("%s run testdata/print_goroot.go: %v, %s", newGoTool, err, out)
 		}
@@ -4807,36 +4238,6 @@
 	tg.grepStderr("compile", "does not match go tool version")
 }
 
-// Test that user can override default code generation flags.
-func TestUserOverrideFlags(t *testing.T) {
-	skipIfGccgo(t, "gccgo does not use -gcflags")
-	if !canCgo {
-		t.Skip("skipping because cgo not enabled")
-	}
-	if runtime.GOOS != "linux" {
-		// We are testing platform-independent code, so it's
-		// OK to skip cases that work differently.
-		t.Skipf("skipping on %s because test only works if c-archive implies -shared", runtime.GOOS)
-	}
-
-	tg := testgo(t)
-	defer tg.cleanup()
-	// Don't call tg.parallel, as creating override.h and override.a may
-	// confuse other tests.
-	tg.tempFile("override.go", `package main
-
-import "C"
-
-//export GoFunc
-func GoFunc() {}
-
-func main() {}`)
-	tg.creatingTemp("override.a")
-	tg.creatingTemp("override.h")
-	tg.run("build", "-x", "-buildmode=c-archive", "-gcflags=all=-shared=false", tg.path("override.go"))
-	tg.grepStderr("compile .*-shared .*-shared=false", "user can not override code generation flag")
-}
-
 func TestCgoFlagContainsSpace(t *testing.T) {
 	tooSlow(t)
 	if !canCgo {
@@ -4939,35 +4340,31 @@
 	//	BenchmarkXX is run but only with N=1, once
 	//	BenchmarkX/Y is run in full, twice
 	want := `=== RUN   TestX
+    TestX: x_test.go:6: LOG: X running
 === RUN   TestX/Y
-    x_test.go:6: LOG: X running
-        x_test.go:8: LOG: Y running
+    TestX/Y: x_test.go:8: LOG: Y running
 === RUN   TestXX
-    z_test.go:10: LOG: XX running
+    TestXX: z_test.go:10: LOG: XX running
 === RUN   TestX
+    TestX: x_test.go:6: LOG: X running
 === RUN   TestX/Y
-    x_test.go:6: LOG: X running
-        x_test.go:8: LOG: Y running
+    TestX/Y: x_test.go:8: LOG: Y running
 === RUN   TestXX
-    z_test.go:10: LOG: XX running
---- BENCH: BenchmarkX/Y
-    x_test.go:15: LOG: Y running N=1
-    x_test.go:15: LOG: Y running N=100
-    x_test.go:15: LOG: Y running N=10000
-    x_test.go:15: LOG: Y running N=1000000
-    x_test.go:15: LOG: Y running N=100000000
-    x_test.go:15: LOG: Y running N=1000000000
---- BENCH: BenchmarkX/Y
-    x_test.go:15: LOG: Y running N=1
-    x_test.go:15: LOG: Y running N=100
-    x_test.go:15: LOG: Y running N=10000
-    x_test.go:15: LOG: Y running N=1000000
-    x_test.go:15: LOG: Y running N=100000000
-    x_test.go:15: LOG: Y running N=1000000000
---- BENCH: BenchmarkX
-    x_test.go:13: LOG: X running N=1
---- BENCH: BenchmarkXX
-    z_test.go:18: LOG: XX running N=1
+    TestXX: z_test.go:10: LOG: XX running
+    BenchmarkX: x_test.go:13: LOG: X running N=1
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=1
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=100
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=10000
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=1000000
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=100000000
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=1000000000
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=1
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=100
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=10000
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=1000000
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=100000000
+    BenchmarkX/Y: x_test.go:15: LOG: Y running N=1000000000
+    BenchmarkXX: z_test.go:18: LOG: XX running N=1
 `
 
 	have := strings.Join(lines, "")
@@ -5196,52 +4593,6 @@
 	}
 }
 
-// Test that Go binaries can be run under QEMU in user-emulation mode
-// (See issue #13024).
-func TestQEMUUserMode(t *testing.T) {
-	if testing.Short() && testenv.Builder() == "" {
-		t.Skipf("skipping in -short mode on non-builder")
-	}
-
-	testArchs := []struct {
-		g, qemu string
-	}{
-		{"arm", "arm"},
-		{"arm64", "aarch64"},
-	}
-
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.tempFile("main.go", `package main; import "fmt"; func main() { fmt.Print("hello qemu-user") }`)
-	tg.parallel()
-	src, obj := tg.path("main.go"), tg.path("main")
-
-	for _, arch := range testArchs {
-		arch := arch
-		t.Run(arch.g, func(t *testing.T) {
-			qemu := "qemu-" + arch.qemu
-			testenv.MustHaveExecPath(t, qemu)
-
-			out, err := exec.Command(qemu, "--version").CombinedOutput()
-			if err != nil {
-				t.Fatalf("%s --version failed: %v", qemu, err)
-			}
-
-			tg.setenv("GOARCH", arch.g)
-			tg.run("build", "-o", obj, src)
-
-			out, err = exec.Command(qemu, obj).CombinedOutput()
-			if err != nil {
-				t.Logf("%s output:\n%s\n", qemu, out)
-				t.Fatalf("%s failed with %v", qemu, err)
-			}
-			if want := "hello qemu-user"; string(out) != want {
-				t.Errorf("bad output from %s:\ngot %s; want %s", qemu, out, want)
-			}
-		})
-	}
-}
-
 func TestCacheListStale(t *testing.T) {
 	tooSlow(t)
 	if strings.Contains(os.Getenv("GODEBUG"), "gocacheverify") {
@@ -5282,38 +4633,6 @@
 	tg.run("test", "-cover", "-short", "math", "strings")
 }
 
-func TestCacheVet(t *testing.T) {
-	skipIfGccgo(t, "gccgo has no standard packages")
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.parallel()
-
-	if strings.Contains(os.Getenv("GODEBUG"), "gocacheverify") {
-		t.Skip("GODEBUG gocacheverify")
-	}
-	if testing.Short() {
-		// In short mode, reuse cache.
-		// Test failures may be masked if the cache has just the right entries already
-		// (not a concern during all.bash, which runs in a clean cache).
-		if cfg.Getenv("GOCACHE") == "off" {
-			tooSlow(t)
-		}
-	} else {
-		tg.makeTempdir()
-		tg.setenv("GOCACHE", tg.path("cache"))
-	}
-
-	// Check that second vet reuses cgo-derived inputs.
-	// The first command could be build instead of vet,
-	// except that if the cache is empty and there's a net.a
-	// in GOROOT/pkg, the build will not bother to regenerate
-	// and cache the cgo outputs, whereas vet always will.
-	tg.run("vet", "os/user")
-	tg.run("vet", "-x", "os/user")
-	tg.grepStderrNot(`^(clang|gcc)`, "should not have run compiler")
-	tg.grepStderrNot(`[\\/]cgo `, "should not have run cgo")
-}
-
 func TestIssue22588(t *testing.T) {
 	// Don't get confused by stderr coming from tools.
 	tg := testgo(t)
@@ -5503,122 +4822,6 @@
 	}
 }
 
-func TestTestCacheInputs(t *testing.T) {
-	tooSlow(t)
-
-	if strings.Contains(os.Getenv("GODEBUG"), "gocacheverify") {
-		t.Skip("GODEBUG gocacheverify")
-	}
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.parallel()
-	tg.makeTempdir()
-	tg.setenv("GOPATH", filepath.Join(tg.pwd(), "testdata"))
-	tg.setenv("GOCACHE", tg.path("cache"))
-
-	defer os.Remove(filepath.Join(tg.pwd(), "testdata/src/testcache/file.txt"))
-	defer os.Remove(filepath.Join(tg.pwd(), "testdata/src/testcache/script.sh"))
-	tg.must(ioutil.WriteFile(filepath.Join(tg.pwd(), "testdata/src/testcache/file.txt"), []byte("x"), 0644))
-	old := time.Now().Add(-1 * time.Minute)
-	tg.must(os.Chtimes(filepath.Join(tg.pwd(), "testdata/src/testcache/file.txt"), old, old))
-	info, err := os.Stat(filepath.Join(tg.pwd(), "testdata/src/testcache/file.txt"))
-	if err != nil {
-		t.Fatal(err)
-	}
-	t.Logf("file.txt: old=%v, info.ModTime=%v", old, info.ModTime()) // help debug when Chtimes lies about succeeding
-	tg.setenv("TESTKEY", "x")
-
-	tg.must(ioutil.WriteFile(filepath.Join(tg.pwd(), "testdata/src/testcache/script.sh"), []byte("#!/bin/sh\nexit 0\n"), 0755))
-	tg.must(os.Chtimes(filepath.Join(tg.pwd(), "testdata/src/testcache/script.sh"), old, old))
-
-	tg.run("test", "testcache")
-	tg.run("test", "testcache")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-
-	tg.setenv("TESTKEY", "y")
-	tg.run("test", "testcache")
-	tg.grepStdoutNot(`\(cached\)`, "did not notice env var change")
-	tg.run("test", "testcache")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-
-	tg.run("test", "testcache", "-run=FileSize")
-	tg.run("test", "testcache", "-run=FileSize")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-	tg.must(ioutil.WriteFile(filepath.Join(tg.pwd(), "testdata/src/testcache/file.txt"), []byte("xxx"), 0644))
-	tg.run("test", "testcache", "-run=FileSize")
-	tg.grepStdoutNot(`\(cached\)`, "did not notice file size change")
-	tg.run("test", "testcache", "-run=FileSize")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-
-	tg.run("test", "testcache", "-run=Chdir")
-	tg.run("test", "testcache", "-run=Chdir")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-	tg.must(ioutil.WriteFile(filepath.Join(tg.pwd(), "testdata/src/testcache/file.txt"), []byte("xxxxx"), 0644))
-	tg.run("test", "testcache", "-run=Chdir")
-	tg.grepStdoutNot(`\(cached\)`, "did not notice file size change")
-	tg.run("test", "testcache", "-run=Chdir")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-
-	tg.must(os.Chtimes(filepath.Join(tg.pwd(), "testdata/src/testcache/file.txt"), old, old))
-	tg.run("test", "testcache", "-run=FileContent")
-	tg.run("test", "testcache", "-run=FileContent")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-	tg.must(ioutil.WriteFile(filepath.Join(tg.pwd(), "testdata/src/testcache/file.txt"), []byte("yyy"), 0644))
-	old2 := old.Add(10 * time.Second)
-	tg.must(os.Chtimes(filepath.Join(tg.pwd(), "testdata/src/testcache/file.txt"), old2, old2))
-	tg.run("test", "testcache", "-run=FileContent")
-	tg.grepStdoutNot(`\(cached\)`, "did not notice file content change")
-	tg.run("test", "testcache", "-run=FileContent")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-
-	tg.run("test", "testcache", "-run=DirList")
-	tg.run("test", "testcache", "-run=DirList")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-	tg.must(os.Remove(filepath.Join(tg.pwd(), "testdata/src/testcache/file.txt")))
-	tg.run("test", "testcache", "-run=DirList")
-	tg.grepStdoutNot(`\(cached\)`, "did not notice directory change")
-	tg.run("test", "testcache", "-run=DirList")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-
-	tg.tempFile("file.txt", "")
-	tg.must(ioutil.WriteFile(filepath.Join(tg.pwd(), "testdata/src/testcache/testcachetmp_test.go"), []byte(`package testcache
-
-		import (
-			"os"
-			"testing"
-		)
-
-		func TestExternalFile(t *testing.T) {
-			os.Open(`+fmt.Sprintf("%q", tg.path("file.txt"))+`)
-			_, err := os.Stat(`+fmt.Sprintf("%q", tg.path("file.txt"))+`)
-			if err != nil {
-				t.Fatal(err)
-			}
-		}
-	`), 0666))
-	defer os.Remove(filepath.Join(tg.pwd(), "testdata/src/testcache/testcachetmp_test.go"))
-	tg.run("test", "testcache", "-run=ExternalFile")
-	tg.run("test", "testcache", "-run=ExternalFile")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-	tg.must(os.Remove(filepath.Join(tg.tempdir, "file.txt")))
-	tg.run("test", "testcache", "-run=ExternalFile")
-	tg.grepStdout(`\(cached\)`, "did not cache")
-
-	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
-		// no shell scripts
-	default:
-		tg.run("test", "testcache", "-run=Exec")
-		tg.run("test", "testcache", "-run=Exec")
-		tg.grepStdout(`\(cached\)`, "did not cache")
-		tg.must(os.Chtimes(filepath.Join(tg.pwd(), "testdata/src/testcache/script.sh"), old2, old2))
-		tg.run("test", "testcache", "-run=Exec")
-		tg.grepStdoutNot(`\(cached\)`, "did not notice script change")
-		tg.run("test", "testcache", "-run=Exec")
-		tg.grepStdout(`\(cached\)`, "did not cache")
-	}
-}
-
 func TestTestVet(t *testing.T) {
 	tooSlow(t)
 	tg := testgo(t)
@@ -5761,14 +4964,6 @@
 	tg.mustExist(p1)
 }
 
-func TestFmtLoadErrors(t *testing.T) {
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.setenv("GOPATH", filepath.Join(tg.pwd(), "testdata"))
-	tg.runFail("fmt", "does-not-exist")
-	tg.run("fmt", "-n", "exclude")
-}
-
 func TestGoTestMinusN(t *testing.T) {
 	// Intent here is to verify that 'go test -n' works without crashing.
 	// This reuses flag_test.go, but really any test would do.
diff --git a/libgo/go/cmd/go/help_test.go b/libgo/go/cmd/go/help_test.go
index 9c0fa84..9bcab82 100644
--- a/libgo/go/cmd/go/help_test.go
+++ b/libgo/go/cmd/go/help_test.go
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !nacl
-
 package main_test
 
 import (
diff --git a/libgo/go/cmd/go/internal/base/flag.go b/libgo/go/cmd/go/internal/base/flag.go
index 5e03e64..6727196 100644
--- a/libgo/go/cmd/go/internal/base/flag.go
+++ b/libgo/go/cmd/go/internal/base/flag.go
@@ -33,3 +33,8 @@
 	flags.BoolVar(&cfg.BuildN, "n", false, "")
 	flags.BoolVar(&cfg.BuildX, "x", false, "")
 }
+
+// AddLoadFlags adds the -mod build flag to the flag set.
+func AddLoadFlags(flags *flag.FlagSet) {
+	flags.StringVar(&cfg.BuildMod, "mod", "", "")
+}
diff --git a/libgo/go/cmd/go/internal/base/signal_unix.go b/libgo/go/cmd/go/internal/base/signal_unix.go
index 5aa7703..2b1507b 100644
--- a/libgo/go/cmd/go/internal/base/signal_unix.go
+++ b/libgo/go/cmd/go/internal/base/signal_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js linux netbsd openbsd solaris
 
 package base
 
diff --git a/libgo/go/cmd/go/internal/cache/cache.go b/libgo/go/cmd/go/internal/cache/cache.go
index a05a08f..8797398 100644
--- a/libgo/go/cmd/go/internal/cache/cache.go
+++ b/libgo/go/cmd/go/internal/cache/cache.go
@@ -74,7 +74,22 @@
 	return filepath.Join(c.dir, fmt.Sprintf("%02x", id[0]), fmt.Sprintf("%x", id)+"-"+key)
 }
 
-var errMissing = errors.New("cache entry not found")
+// An entryNotFoundError indicates that a cache entry was not found, with an
+// optional underlying reason.
+type entryNotFoundError struct {
+	Err error
+}
+
+func (e *entryNotFoundError) Error() string {
+	if e.Err == nil {
+		return "cache entry not found"
+	}
+	return fmt.Sprintf("cache entry not found: %v", e.Err)
+}
+
+func (e *entryNotFoundError) Unwrap() error {
+	return e.Err
+}
 
 const (
 	// action entry file is "v1 <hex id> <hex out> <decimal size space-padded to 20 bytes> <unixnano space-padded to 20 bytes>\n"
@@ -93,6 +108,8 @@
 // GODEBUG=gocacheverify=1.
 var verify = false
 
+var errVerifyMode = errors.New("gocachverify=1")
+
 // DebugTest is set when GODEBUG=gocachetest=1 is in the environment.
 var DebugTest = false
 
@@ -121,7 +138,7 @@
 // saved file for that output ID is still available.
 func (c *Cache) Get(id ActionID) (Entry, error) {
 	if verify {
-		return Entry{}, errMissing
+		return Entry{}, &entryNotFoundError{Err: errVerifyMode}
 	}
 	return c.get(id)
 }
@@ -134,47 +151,60 @@
 
 // get is Get but does not respect verify mode, so that Put can use it.
 func (c *Cache) get(id ActionID) (Entry, error) {
-	missing := func() (Entry, error) {
-		return Entry{}, errMissing
+	missing := func(reason error) (Entry, error) {
+		return Entry{}, &entryNotFoundError{Err: reason}
 	}
 	f, err := os.Open(c.fileName(id, "a"))
 	if err != nil {
-		return missing()
+		return missing(err)
 	}
 	defer f.Close()
 	entry := make([]byte, entrySize+1) // +1 to detect whether f is too long
-	if n, err := io.ReadFull(f, entry); n != entrySize || err != io.ErrUnexpectedEOF {
-		return missing()
+	if n, err := io.ReadFull(f, entry); n > entrySize {
+		return missing(errors.New("too long"))
+	} else if err != io.ErrUnexpectedEOF {
+		if err == io.EOF {
+			return missing(errors.New("file is empty"))
+		}
+		return missing(err)
+	} else if n < entrySize {
+		return missing(errors.New("entry file incomplete"))
 	}
 	if entry[0] != 'v' || entry[1] != '1' || entry[2] != ' ' || entry[3+hexSize] != ' ' || entry[3+hexSize+1+hexSize] != ' ' || entry[3+hexSize+1+hexSize+1+20] != ' ' || entry[entrySize-1] != '\n' {
-		return missing()
+		return missing(errors.New("invalid header"))
 	}
 	eid, entry := entry[3:3+hexSize], entry[3+hexSize:]
 	eout, entry := entry[1:1+hexSize], entry[1+hexSize:]
 	esize, entry := entry[1:1+20], entry[1+20:]
 	etime, entry := entry[1:1+20], entry[1+20:]
 	var buf [HashSize]byte
-	if _, err := hex.Decode(buf[:], eid); err != nil || buf != id {
-		return missing()
+	if _, err := hex.Decode(buf[:], eid); err != nil {
+		return missing(fmt.Errorf("decoding ID: %v", err))
+	} else if buf != id {
+		return missing(errors.New("mismatched ID"))
 	}
 	if _, err := hex.Decode(buf[:], eout); err != nil {
-		return missing()
+		return missing(fmt.Errorf("decoding output ID: %v", err))
 	}
 	i := 0
 	for i < len(esize) && esize[i] == ' ' {
 		i++
 	}
 	size, err := strconv.ParseInt(string(esize[i:]), 10, 64)
-	if err != nil || size < 0 {
-		return missing()
+	if err != nil {
+		return missing(fmt.Errorf("parsing size: %v", err))
+	} else if size < 0 {
+		return missing(errors.New("negative size"))
 	}
 	i = 0
 	for i < len(etime) && etime[i] == ' ' {
 		i++
 	}
 	tm, err := strconv.ParseInt(string(etime[i:]), 10, 64)
-	if err != nil || tm < 0 {
-		return missing()
+	if err != nil {
+		return missing(fmt.Errorf("parsing timestamp: %v", err))
+	} else if tm < 0 {
+		return missing(errors.New("negative timestamp"))
 	}
 
 	c.used(c.fileName(id, "a"))
@@ -191,8 +221,11 @@
 	}
 	file = c.OutputFile(entry.OutputID)
 	info, err := os.Stat(file)
-	if err != nil || info.Size() != entry.Size {
-		return "", Entry{}, errMissing
+	if err != nil {
+		return "", Entry{}, &entryNotFoundError{Err: err}
+	}
+	if info.Size() != entry.Size {
+		return "", Entry{}, &entryNotFoundError{Err: errors.New("file incomplete")}
 	}
 	return file, entry, nil
 }
@@ -207,7 +240,7 @@
 	}
 	data, _ := ioutil.ReadFile(c.OutputFile(entry.OutputID))
 	if sha256.Sum256(data) != entry.OutputID {
-		return nil, entry, errMissing
+		return nil, entry, &entryNotFoundError{Err: errors.New("bad checksum")}
 	}
 	return data, entry, nil
 }
diff --git a/libgo/go/cmd/go/internal/cfg/cfg.go b/libgo/go/cmd/go/internal/cfg/cfg.go
index a3277a6..61dc6bd 100644
--- a/libgo/go/cmd/go/internal/cfg/cfg.go
+++ b/libgo/go/cmd/go/internal/cfg/cfg.go
@@ -27,6 +27,7 @@
 	BuildBuildmode         string // -buildmode flag
 	BuildContext           = defaultContext()
 	BuildMod               string             // -mod flag
+	BuildModReason         string             // reason -mod flag is set, if set by default
 	BuildI                 bool               // -i flag
 	BuildLinkshared        bool               // -linkshared flag
 	BuildMSan              bool               // -msan flag
@@ -44,6 +45,9 @@
 	BuildWork              bool // -work flag
 	BuildX                 bool // -x flag
 
+	ModCacheRW bool   // -modcacherw flag
+	ModFile    string // -modfile flag
+
 	CmdName string // "build", "install", "list", "mod tidy", etc.
 
 	DebugActiongraph string // -debug-actiongraph flag (undocumented, unstable)
@@ -241,11 +245,12 @@
 	GOPPC64  = envOr("GOPPC64", fmt.Sprintf("%s%d", "power", objabi.GOPPC64))
 	GOWASM   = envOr("GOWASM", fmt.Sprint(objabi.GOWASM))
 
-	GOPROXY   = envOr("GOPROXY", "https://proxy.golang.org,direct")
-	GOSUMDB   = envOr("GOSUMDB", "sum.golang.org")
-	GOPRIVATE = Getenv("GOPRIVATE")
-	GONOPROXY = envOr("GONOPROXY", GOPRIVATE)
-	GONOSUMDB = envOr("GONOSUMDB", GOPRIVATE)
+	GOPROXY    = envOr("GOPROXY", "https://proxy.golang.org,direct")
+	GOSUMDB    = envOr("GOSUMDB", "sum.golang.org")
+	GOPRIVATE  = Getenv("GOPRIVATE")
+	GONOPROXY  = envOr("GONOPROXY", GOPRIVATE)
+	GONOSUMDB  = envOr("GONOSUMDB", GOPRIVATE)
+	GOINSECURE = Getenv("GOINSECURE")
 )
 
 // GetArchEnv returns the name and setting of the
diff --git a/libgo/go/cmd/go/internal/clean/clean.go b/libgo/go/cmd/go/internal/clean/clean.go
index f7d80ff..5f4bf4e 100644
--- a/libgo/go/cmd/go/internal/clean/clean.go
+++ b/libgo/go/cmd/go/internal/clean/clean.go
@@ -102,7 +102,7 @@
 	// mentioned explicitly in the docs but they
 	// are part of the build flags.
 
-	work.AddBuildFlags(CmdClean)
+	work.AddBuildFlags(CmdClean, work.DefaultBuildFlags)
 }
 
 func runClean(cmd *base.Command, args []string) {
diff --git a/libgo/go/cmd/go/internal/dirhash/hash.go b/libgo/go/cmd/go/internal/dirhash/hash.go
deleted file mode 100644
index 61d8fac..0000000
--- a/libgo/go/cmd/go/internal/dirhash/hash.go
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package dirhash defines hashes over directory trees.
-package dirhash
-
-import (
-	"archive/zip"
-	"crypto/sha256"
-	"encoding/base64"
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
-)
-
-var DefaultHash = Hash1
-
-type Hash func(files []string, open func(string) (io.ReadCloser, error)) (string, error)
-
-func Hash1(files []string, open func(string) (io.ReadCloser, error)) (string, error) {
-	h := sha256.New()
-	files = append([]string(nil), files...)
-	sort.Strings(files)
-	for _, file := range files {
-		if strings.Contains(file, "\n") {
-			return "", errors.New("filenames with newlines are not supported")
-		}
-		r, err := open(file)
-		if err != nil {
-			return "", err
-		}
-		hf := sha256.New()
-		_, err = io.Copy(hf, r)
-		r.Close()
-		if err != nil {
-			return "", err
-		}
-		fmt.Fprintf(h, "%x  %s\n", hf.Sum(nil), file)
-	}
-	return "h1:" + base64.StdEncoding.EncodeToString(h.Sum(nil)), nil
-}
-
-func HashDir(dir, prefix string, hash Hash) (string, error) {
-	files, err := DirFiles(dir, prefix)
-	if err != nil {
-		return "", err
-	}
-	osOpen := func(name string) (io.ReadCloser, error) {
-		return os.Open(filepath.Join(dir, strings.TrimPrefix(name, prefix)))
-	}
-	return hash(files, osOpen)
-}
-
-func DirFiles(dir, prefix string) ([]string, error) {
-	var files []string
-	dir = filepath.Clean(dir)
-	err := filepath.Walk(dir, func(file string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-		if info.IsDir() {
-			return nil
-		}
-		rel := file
-		if dir != "." {
-			rel = file[len(dir)+1:]
-		}
-		f := filepath.Join(prefix, rel)
-		files = append(files, filepath.ToSlash(f))
-		return nil
-	})
-	if err != nil {
-		return nil, err
-	}
-	return files, nil
-}
-
-func HashZip(zipfile string, hash Hash) (string, error) {
-	z, err := zip.OpenReader(zipfile)
-	if err != nil {
-		return "", err
-	}
-	defer z.Close()
-	var files []string
-	zfiles := make(map[string]*zip.File)
-	for _, file := range z.File {
-		files = append(files, file.Name)
-		zfiles[file.Name] = file
-	}
-	zipOpen := func(name string) (io.ReadCloser, error) {
-		f := zfiles[name]
-		if f == nil {
-			return nil, fmt.Errorf("file %q not found in zip", name) // should never happen
-		}
-		return f.Open()
-	}
-	return hash(files, zipOpen)
-}
diff --git a/libgo/go/cmd/go/internal/dirhash/hash_test.go b/libgo/go/cmd/go/internal/dirhash/hash_test.go
deleted file mode 100644
index ed463c1..0000000
--- a/libgo/go/cmd/go/internal/dirhash/hash_test.go
+++ /dev/null
@@ -1,135 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package dirhash
-
-import (
-	"archive/zip"
-	"crypto/sha256"
-	"encoding/base64"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-)
-
-func h(s string) string {
-	return fmt.Sprintf("%x", sha256.Sum256([]byte(s)))
-}
-
-func htop(k string, s string) string {
-	sum := sha256.Sum256([]byte(s))
-	return k + ":" + base64.StdEncoding.EncodeToString(sum[:])
-}
-
-func TestHash1(t *testing.T) {
-	files := []string{"xyz", "abc"}
-	open := func(name string) (io.ReadCloser, error) {
-		return ioutil.NopCloser(strings.NewReader("data for " + name)), nil
-	}
-	want := htop("h1", fmt.Sprintf("%s  %s\n%s  %s\n", h("data for abc"), "abc", h("data for xyz"), "xyz"))
-	out, err := Hash1(files, open)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if out != want {
-		t.Errorf("Hash1(...) = %s, want %s", out, want)
-	}
-
-	_, err = Hash1([]string{"xyz", "a\nbc"}, open)
-	if err == nil {
-		t.Error("Hash1: expected error on newline in filenames")
-	}
-}
-
-func TestHashDir(t *testing.T) {
-	dir, err := ioutil.TempDir("", "dirhash-test-")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.RemoveAll(dir)
-	if err := ioutil.WriteFile(filepath.Join(dir, "xyz"), []byte("data for xyz"), 0666); err != nil {
-		t.Fatal(err)
-	}
-	if err := ioutil.WriteFile(filepath.Join(dir, "abc"), []byte("data for abc"), 0666); err != nil {
-		t.Fatal(err)
-	}
-	want := htop("h1", fmt.Sprintf("%s  %s\n%s  %s\n", h("data for abc"), "prefix/abc", h("data for xyz"), "prefix/xyz"))
-	out, err := HashDir(dir, "prefix", Hash1)
-	if err != nil {
-		t.Fatalf("HashDir: %v", err)
-	}
-	if out != want {
-		t.Errorf("HashDir(...) = %s, want %s", out, want)
-	}
-}
-
-func TestHashZip(t *testing.T) {
-	f, err := ioutil.TempFile("", "dirhash-test-")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.Remove(f.Name())
-	defer f.Close()
-
-	z := zip.NewWriter(f)
-	w, err := z.Create("prefix/xyz")
-	if err != nil {
-		t.Fatal(err)
-	}
-	w.Write([]byte("data for xyz"))
-	w, err = z.Create("prefix/abc")
-	if err != nil {
-		t.Fatal(err)
-	}
-	w.Write([]byte("data for abc"))
-	if err := z.Close(); err != nil {
-		t.Fatal(err)
-	}
-	if err := f.Close(); err != nil {
-		t.Fatal(err)
-	}
-
-	want := htop("h1", fmt.Sprintf("%s  %s\n%s  %s\n", h("data for abc"), "prefix/abc", h("data for xyz"), "prefix/xyz"))
-	out, err := HashZip(f.Name(), Hash1)
-	if err != nil {
-		t.Fatalf("HashDir: %v", err)
-	}
-	if out != want {
-		t.Errorf("HashDir(...) = %s, want %s", out, want)
-	}
-}
-
-func TestDirFiles(t *testing.T) {
-	dir, err := ioutil.TempDir("", "dirfiles-test-")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.RemoveAll(dir)
-	if err := ioutil.WriteFile(filepath.Join(dir, "xyz"), []byte("data for xyz"), 0666); err != nil {
-		t.Fatal(err)
-	}
-	if err := ioutil.WriteFile(filepath.Join(dir, "abc"), []byte("data for abc"), 0666); err != nil {
-		t.Fatal(err)
-	}
-	if err := os.Mkdir(filepath.Join(dir, "subdir"), 0777); err != nil {
-		t.Fatal(err)
-	}
-	if err := ioutil.WriteFile(filepath.Join(dir, "subdir", "xyz"), []byte("data for subdir xyz"), 0666); err != nil {
-		t.Fatal(err)
-	}
-	prefix := "foo/bar@v2.3.4"
-	out, err := DirFiles(dir, prefix)
-	if err != nil {
-		t.Fatalf("DirFiles: %v", err)
-	}
-	for _, file := range out {
-		if !strings.HasPrefix(file, prefix) {
-			t.Errorf("Dir file = %s, want prefix %s", file, prefix)
-		}
-	}
-}
diff --git a/libgo/go/cmd/go/internal/doc/doc.go b/libgo/go/cmd/go/internal/doc/doc.go
index bad05ff..4ff08bb 100644
--- a/libgo/go/cmd/go/internal/doc/doc.go
+++ b/libgo/go/cmd/go/internal/doc/doc.go
@@ -114,6 +114,8 @@
 		Treat a command (package main) like a regular package.
 		Otherwise package main's exported symbols are hidden
 		when showing the package's top-level documentation.
+	-short
+		One-line representation for each symbol.
 	-src
 		Show the full source code for the symbol. This will
 		display the full Go source of its declaration and
diff --git a/libgo/go/cmd/go/internal/envcmd/env.go b/libgo/go/cmd/go/internal/envcmd/env.go
index 17852de..d2d5ed9 100644
--- a/libgo/go/cmd/go/internal/envcmd/env.go
+++ b/libgo/go/cmd/go/internal/envcmd/env.go
@@ -8,6 +8,7 @@
 import (
 	"encoding/json"
 	"fmt"
+	"go/build"
 	"io/ioutil"
 	"os"
 	"path/filepath"
@@ -75,6 +76,7 @@
 		{Name: "GOFLAGS", Value: cfg.Getenv("GOFLAGS")},
 		{Name: "GOHOSTARCH", Value: runtime.GOARCH},
 		{Name: "GOHOSTOS", Value: runtime.GOOS},
+		{Name: "GOINSECURE", Value: cfg.GOINSECURE},
 		{Name: "GONOPROXY", Value: cfg.GONOPROXY},
 		{Name: "GONOSUMDB", Value: cfg.GONOSUMDB},
 		{Name: "GOOS", Value: cfg.Goos},
@@ -237,7 +239,7 @@
 				base.Fatalf("go env -w: arguments must be KEY=VALUE: invalid argument: %s", arg)
 			}
 			key, val := arg[:i], arg[i+1:]
-			if err := checkEnvWrite(key, val, env); err != nil {
+			if err := checkEnvWrite(key, val); err != nil {
 				base.Fatalf("go env -w: %v", err)
 			}
 			if _, ok := add[key]; ok {
@@ -248,6 +250,21 @@
 				fmt.Fprintf(os.Stderr, "warning: go env -w %s=... does not override conflicting OS environment variable\n", key)
 			}
 		}
+
+		goos, okGOOS := add["GOOS"]
+		goarch, okGOARCH := add["GOARCH"]
+		if okGOOS || okGOARCH {
+			if !okGOOS {
+				goos = cfg.Goos
+			}
+			if !okGOARCH {
+				goarch = cfg.Goarch
+			}
+			if err := work.CheckGOOSARCHPair(goos, goarch); err != nil {
+				base.Fatalf("go env -w: %v", err)
+			}
+		}
+
 		updateEnvFile(add, nil)
 		return
 	}
@@ -259,11 +276,29 @@
 		}
 		del := make(map[string]bool)
 		for _, arg := range args {
-			if err := checkEnvWrite(arg, "", env); err != nil {
+			if err := checkEnvWrite(arg, ""); err != nil {
 				base.Fatalf("go env -u: %v", err)
 			}
 			del[arg] = true
 		}
+		if del["GOOS"] || del["GOARCH"] {
+			goos, goarch := cfg.Goos, cfg.Goarch
+			if del["GOOS"] {
+				goos = getOrigEnv("GOOS")
+				if goos == "" {
+					goos = build.Default.GOOS
+				}
+			}
+			if del["GOARCH"] {
+				goarch = getOrigEnv("GOARCH")
+				if goarch == "" {
+					goarch = build.Default.GOARCH
+				}
+			}
+			if err := work.CheckGOOSARCHPair(goos, goarch); err != nil {
+				base.Fatalf("go env -u: %v", err)
+			}
+		}
 		updateEnvFile(nil, del)
 		return
 	}
@@ -330,7 +365,16 @@
 	}
 }
 
-func checkEnvWrite(key, val string, env []cfg.EnvVar) error {
+func getOrigEnv(key string) string {
+	for _, v := range cfg.OrigEnv {
+		if strings.HasPrefix(v, key+"=") {
+			return strings.TrimPrefix(v, key+"=")
+		}
+	}
+	return ""
+}
+
+func checkEnvWrite(key, val string) error {
 	switch key {
 	case "GOEXE", "GOGCCFLAGS", "GOHOSTARCH", "GOHOSTOS", "GOMOD", "GOTOOLDIR":
 		return fmt.Errorf("%s cannot be modified", key)
@@ -343,6 +387,25 @@
 		return fmt.Errorf("unknown go command variable %s", key)
 	}
 
+	// Some variables can only have one of a few valid values. If set to an
+	// invalid value, the next cmd/go invocation might fail immediately,
+	// even 'go env -w' itself.
+	switch key {
+	case "GO111MODULE":
+		switch val {
+		case "", "auto", "on", "off":
+		default:
+			return fmt.Errorf("invalid %s value %q", key, val)
+		}
+	case "GOPATH":
+		if strings.HasPrefix(val, "~") {
+			return fmt.Errorf("GOPATH entry cannot start with shell metacharacter '~': %q", val)
+		}
+		if !filepath.IsAbs(val) && val != "" {
+			return fmt.Errorf("GOPATH entry is relative; must be absolute path: %q", val)
+		}
+	}
+
 	if !utf8.ValidString(val) {
 		return fmt.Errorf("invalid UTF-8 in %s=... value", key)
 	}
diff --git a/libgo/go/cmd/go/internal/fmtcmd/fmt.go b/libgo/go/cmd/go/internal/fmtcmd/fmt.go
index 8e4ef37..408af52 100644
--- a/libgo/go/cmd/go/internal/fmtcmd/fmt.go
+++ b/libgo/go/cmd/go/internal/fmtcmd/fmt.go
@@ -22,6 +22,7 @@
 
 func init() {
 	base.AddBuildFlagsNX(&CmdFmt.Flag)
+	base.AddLoadFlags(&CmdFmt.Flag)
 }
 
 var CmdFmt = &base.Command{
@@ -38,6 +39,9 @@
 The -n flag prints commands that would be executed.
 The -x flag prints commands as they are executed.
 
+The -mod flag's value sets which module download mode
+to use: readonly or vendor. See 'go help modules' for more.
+
 To run gofmt with specific options, run gofmt itself.
 
 See also: go fix, go vet.
@@ -68,7 +72,7 @@
 			continue
 		}
 		if pkg.Error != nil {
-			if strings.HasPrefix(pkg.Error.Err, "build constraints exclude all Go files") {
+			if strings.HasPrefix(pkg.Error.Err.Error(), "build constraints exclude all Go files") {
 				// Skip this error, as we will format
 				// all files regardless.
 			} else {
diff --git a/libgo/go/cmd/go/internal/generate/generate.go b/libgo/go/cmd/go/internal/generate/generate.go
index f2ae80e..198ca1c 100644
--- a/libgo/go/cmd/go/internal/generate/generate.go
+++ b/libgo/go/cmd/go/internal/generate/generate.go
@@ -149,7 +149,7 @@
 )
 
 func init() {
-	work.AddBuildFlags(CmdGenerate)
+	work.AddBuildFlags(CmdGenerate, work.DefaultBuildFlags)
 	CmdGenerate.Flag.StringVar(&generateRunFlag, "run", "", "")
 }
 
diff --git a/libgo/go/cmd/go/internal/get/discovery.go b/libgo/go/cmd/go/internal/get/discovery.go
index 6ba5c09..afa6ef4 100644
--- a/libgo/go/cmd/go/internal/get/discovery.go
+++ b/libgo/go/cmd/go/internal/get/discovery.go
@@ -11,15 +11,15 @@
 	"strings"
 )
 
-// charsetReader returns a reader for the given charset. Currently
-// it only supports UTF-8 and ASCII. Otherwise, it returns a meaningful
+// charsetReader returns a reader that converts from the given charset to UTF-8.
+// Currently it only supports UTF-8 and ASCII. Otherwise, it returns a meaningful
 // error which is printed by go get, so the user can find why the package
 // wasn't downloaded if the encoding is not supported. Note that, in
 // order to reduce potential errors, ASCII is treated as UTF-8 (i.e. characters
 // greater than 0x7f are not rejected).
 func charsetReader(charset string, input io.Reader) (io.Reader, error) {
 	switch strings.ToLower(charset) {
-	case "ascii":
+	case "utf-8", "ascii":
 		return input, nil
 	default:
 		return nil, fmt.Errorf("can't decode XML document using charset %q", charset)
@@ -28,16 +28,16 @@
 
 // parseMetaGoImports returns meta imports from the HTML in r.
 // Parsing ends at the end of the <head> section or the beginning of the <body>.
-func parseMetaGoImports(r io.Reader, mod ModuleMode) (imports []metaImport, err error) {
+func parseMetaGoImports(r io.Reader, mod ModuleMode) ([]metaImport, error) {
 	d := xml.NewDecoder(r)
 	d.CharsetReader = charsetReader
 	d.Strict = false
-	var t xml.Token
+	var imports []metaImport
 	for {
-		t, err = d.RawToken()
+		t, err := d.RawToken()
 		if err != nil {
-			if err == io.EOF || len(imports) > 0 {
-				err = nil
+			if err != io.EOF && len(imports) == 0 {
+				return nil, err
 			}
 			break
 		}
diff --git a/libgo/go/cmd/go/internal/get/get.go b/libgo/go/cmd/go/internal/get/get.go
index e4945fe..500e3e0 100644
--- a/libgo/go/cmd/go/internal/get/get.go
+++ b/libgo/go/cmd/go/internal/get/get.go
@@ -108,7 +108,7 @@
 )
 
 func init() {
-	work.AddBuildFlags(CmdGet)
+	work.AddBuildFlags(CmdGet, work.OmitModFlag|work.OmitModCommonFlags)
 	CmdGet.Run = runGet // break init loop
 	CmdGet.Flag.BoolVar(&Insecure, "insecure", Insecure, "")
 }
@@ -274,7 +274,7 @@
 		stk.Push(arg)
 		err := downloadPackage(p)
 		if err != nil {
-			base.Errorf("%s", &load.PackageError{ImportStack: stk.Copy(), Err: err.Error()})
+			base.Errorf("%s", &load.PackageError{ImportStack: stk.Copy(), Err: err})
 			stk.Pop()
 			return
 		}
@@ -355,7 +355,7 @@
 				stk.Push(path)
 				err := &load.PackageError{
 					ImportStack: stk.Copy(),
-					Err:         "must be imported as " + path[j+len("vendor/"):],
+					Err:         load.ImportErrorf(path, "%s must be imported as %s", path, path[j+len("vendor/"):]),
 				}
 				stk.Pop()
 				base.Errorf("%s", err)
diff --git a/libgo/go/cmd/go/internal/get/path.go b/libgo/go/cmd/go/internal/get/path.go
index 67d7b8a..ce2e0cd 100644
--- a/libgo/go/cmd/go/internal/get/path.go
+++ b/libgo/go/cmd/go/internal/get/path.go
@@ -11,7 +11,7 @@
 	"unicode/utf8"
 )
 
-// The following functions are copied verbatim from cmd/go/internal/module/module.go,
+// The following functions are copied verbatim from golang.org/x/mod/module/module.go,
 // with a change to additionally reject Windows short-names,
 // and one to accept arbitrary letters (golang.org/issue/29101).
 //
@@ -44,9 +44,6 @@
 	if path[0] == '-' {
 		return fmt.Errorf("leading dash")
 	}
-	if strings.Contains(path, "..") {
-		return fmt.Errorf("double dot")
-	}
 	if strings.Contains(path, "//") {
 		return fmt.Errorf("double slash")
 	}
diff --git a/libgo/go/cmd/go/internal/get/vcs.go b/libgo/go/cmd/go/internal/get/vcs.go
index 705bb66..2e4d638 100644
--- a/libgo/go/cmd/go/internal/get/vcs.go
+++ b/libgo/go/cmd/go/internal/get/vcs.go
@@ -21,6 +21,7 @@
 
 	"cmd/go/internal/base"
 	"cmd/go/internal/cfg"
+	"cmd/go/internal/load"
 	"cmd/go/internal/web"
 )
 
@@ -531,12 +532,12 @@
 // A vcsPath describes how to convert an import path into a
 // version control system and repository name.
 type vcsPath struct {
-	prefix string                              // prefix this description applies to
-	regexp *lazyregexp.Regexp                  // compiled pattern for import path
-	repo   string                              // repository to use (expand with match of re)
-	vcs    string                              // version control system to use (expand with match of re)
-	check  func(match map[string]string) error // additional checks
-	ping   bool                                // ping for scheme to use to download repo
+	prefix         string                              // prefix this description applies to
+	regexp         *lazyregexp.Regexp                  // compiled pattern for import path
+	repo           string                              // repository to use (expand with match of re)
+	vcs            string                              // version control system to use (expand with match of re)
+	check          func(match map[string]string) error // additional checks
+	schemelessRepo bool                                // if true, the repo pattern lacks a scheme
 }
 
 // vcsFromDir inspects dir and its parents to determine the
@@ -657,15 +658,15 @@
 // RepoRootForImportPath analyzes importPath to determine the
 // version control system, and code repository to use.
 func RepoRootForImportPath(importPath string, mod ModuleMode, security web.SecurityMode) (*RepoRoot, error) {
-	rr, err := repoRootFromVCSPaths(importPath, "", security, vcsPaths)
+	rr, err := repoRootFromVCSPaths(importPath, security, vcsPaths)
 	if err == errUnknownSite {
 		rr, err = repoRootForImportDynamic(importPath, mod, security)
 		if err != nil {
-			err = fmt.Errorf("unrecognized import path %q (%v)", importPath, err)
+			err = load.ImportErrorf(importPath, "unrecognized import path %q: %v", importPath, err)
 		}
 	}
 	if err != nil {
-		rr1, err1 := repoRootFromVCSPaths(importPath, "", security, vcsPathsAfterDynamic)
+		rr1, err1 := repoRootFromVCSPaths(importPath, security, vcsPathsAfterDynamic)
 		if err1 == nil {
 			rr = rr1
 			err = nil
@@ -676,7 +677,7 @@
 	if err == nil && strings.Contains(importPath, "...") && strings.Contains(rr.Root, "...") {
 		// Do not allow wildcards in the repo root.
 		rr = nil
-		err = fmt.Errorf("cannot expand ... in %q", importPath)
+		err = load.ImportErrorf(importPath, "cannot expand ... in %q", importPath)
 	}
 	return rr, err
 }
@@ -685,8 +686,7 @@
 
 // repoRootFromVCSPaths attempts to map importPath to a repoRoot
 // using the mappings defined in vcsPaths.
-// If scheme is non-empty, that scheme is forced.
-func repoRootFromVCSPaths(importPath, scheme string, security web.SecurityMode, vcsPaths []*vcsPath) (*RepoRoot, error) {
+func repoRootFromVCSPaths(importPath string, security web.SecurityMode, vcsPaths []*vcsPath) (*RepoRoot, error) {
 	// A common error is to use https://packagepath because that's what
 	// hg and git require. Diagnose this helpfully.
 	if prefix := httpPrefix(importPath); prefix != "" {
@@ -701,7 +701,7 @@
 		m := srv.regexp.FindStringSubmatch(importPath)
 		if m == nil {
 			if srv.prefix != "" {
-				return nil, fmt.Errorf("invalid %s import path %q", srv.prefix, importPath)
+				return nil, load.ImportErrorf(importPath, "invalid %s import path %q", srv.prefix, importPath)
 			}
 			continue
 		}
@@ -731,26 +731,28 @@
 		if vcs == nil {
 			return nil, fmt.Errorf("unknown version control system %q", match["vcs"])
 		}
-		if srv.ping {
-			if scheme != "" {
-				match["repo"] = scheme + "://" + match["repo"]
-			} else {
-				for _, scheme := range vcs.scheme {
-					if security == web.SecureOnly && !vcs.isSecureScheme(scheme) {
+		var repoURL string
+		if !srv.schemelessRepo {
+			repoURL = match["repo"]
+		} else {
+			scheme := vcs.scheme[0] // default to first scheme
+			repo := match["repo"]
+			if vcs.pingCmd != "" {
+				// If we know how to test schemes, scan to find one.
+				for _, s := range vcs.scheme {
+					if security == web.SecureOnly && !vcs.isSecureScheme(s) {
 						continue
 					}
-					if vcs.pingCmd != "" && vcs.ping(scheme, match["repo"]) == nil {
-						match["repo"] = scheme + "://" + match["repo"]
-						goto Found
+					if vcs.ping(s, repo) == nil {
+						scheme = s
+						break
 					}
 				}
-				// No scheme found. Fall back to the first one.
-				match["repo"] = vcs.scheme[0] + "://" + match["repo"]
-			Found:
 			}
+			repoURL = scheme + "://" + repo
 		}
 		rr := &RepoRoot{
-			Repo: match["repo"],
+			Repo: repoURL,
 			Root: match["root"],
 			VCS:  vcs.cmd,
 			vcs:  vcs,
@@ -799,6 +801,13 @@
 	body := resp.Body
 	defer body.Close()
 	imports, err := parseMetaGoImports(body, mod)
+	if len(imports) == 0 {
+		if respErr := resp.Err(); respErr != nil {
+			// If the server's status was not OK, prefer to report that instead of
+			// an XML parse error.
+			return nil, respErr
+		}
+	}
 	if err != nil {
 		return nil, fmt.Errorf("parsing %s: %v", importPath, err)
 	}
@@ -904,16 +913,23 @@
 		}
 		resp, err := web.Get(security, url)
 		if err != nil {
-			return setCache(fetchResult{url: url, err: fmt.Errorf("fetch %s: %v", resp.URL, err)})
+			return setCache(fetchResult{url: url, err: fmt.Errorf("fetching %s: %v", importPrefix, err)})
 		}
 		body := resp.Body
 		defer body.Close()
 		imports, err := parseMetaGoImports(body, mod)
+		if len(imports) == 0 {
+			if respErr := resp.Err(); respErr != nil {
+				// If the server's status was not OK, prefer to report that instead of
+				// an XML parse error.
+				return setCache(fetchResult{url: url, err: respErr})
+			}
+		}
 		if err != nil {
 			return setCache(fetchResult{url: url, err: fmt.Errorf("parsing %s: %v", resp.URL, err)})
 		}
 		if len(imports) == 0 {
-			err = fmt.Errorf("fetch %s: no go-import meta tag", url)
+			err = fmt.Errorf("fetching %s: no go-import meta tag found in %s", importPrefix, resp.URL)
 		}
 		return setCache(fetchResult{url: url, imports: imports, err: err})
 	})
@@ -962,7 +978,7 @@
 
 // matchGoImport returns the metaImport from imports matching importPath.
 // An error is returned if there are multiple matches.
-// errNoMatch is returned if none match.
+// An ImportMismatchError is returned if none match.
 func matchGoImport(imports []metaImport, importPath string) (metaImport, error) {
 	match := -1
 
@@ -1061,8 +1077,8 @@
 	// General syntax for any server.
 	// Must be last.
 	{
-		regexp: lazyregexp.New(`(?P<root>(?P<repo>([a-z0-9.\-]+\.)+[a-z0-9.\-]+(:[0-9]+)?(/~?[A-Za-z0-9_.\-]+)+?)\.(?P<vcs>bzr|fossil|git|hg|svn))(/~?[A-Za-z0-9_.\-]+)*$`),
-		ping:   true,
+		regexp:         lazyregexp.New(`(?P<root>(?P<repo>([a-z0-9.\-]+\.)+[a-z0-9.\-]+(:[0-9]+)?(/~?[A-Za-z0-9_.\-]+)+?)\.(?P<vcs>bzr|fossil|git|hg|svn))(/~?[A-Za-z0-9_.\-]+)*$`),
+		schemelessRepo: true,
 	},
 }
 
diff --git a/libgo/go/cmd/go/internal/help/helpdoc.go b/libgo/go/cmd/go/internal/help/helpdoc.go
index dfb89d4..6a843f4 100644
--- a/libgo/go/cmd/go/internal/help/helpdoc.go
+++ b/libgo/go/cmd/go/internal/help/helpdoc.go
@@ -21,8 +21,8 @@
 extension will be passed to SWIG. Any file with a .swigcxx extension
 will be passed to SWIG with the -c++ option.
 
-When either cgo or SWIG is used, go build will pass any .c, .m, .s,
-or .S files to the C compiler, and any .cc, .cpp, .cxx files to the C++
+When either cgo or SWIG is used, go build will pass any .c, .m, .s, .S
+or .sx files to the C compiler, and any .cc, .cpp, .cxx files to the C++
 compiler. The CC or CXX environment variables may be set to determine
 the C or C++ compiler, respectively, to use.
 	`,
@@ -506,6 +506,10 @@
 		Because the entries are space-separated, flag values must
 		not contain spaces. Flags listed on the command line
 		are applied after this list and therefore override it.
+	GOINSECURE
+		Comma-separated list of glob patterns (in the syntax of Go's path.Match)
+		of module path prefixes that should always be fetched in an insecure
+		manner. Only applies to dependencies that are being fetched directly.
 	GOOS
 		The operating system for which to compile code.
 		Examples are linux, darwin, windows, netbsd.
@@ -617,8 +621,10 @@
 	GOHOSTOS
 		The operating system (GOOS) of the Go toolchain binaries.
 	GOMOD
-		The absolute path to the go.mod of the main module,
-		or the empty string if not using modules.
+		The absolute path to the go.mod of the main module.
+		If module-aware mode is enabled, but there is no go.mod, GOMOD will be
+		os.DevNull ("/dev/null" on Unix-like systems, "NUL" on Windows).
+		If module-aware mode is disabled, GOMOD will be the empty string.
 	GOTOOLDIR
 		The directory where the go tools (compile, cover, doc, etc...) are installed.
 	`,
@@ -645,7 +651,7 @@
 	.m
 		Objective-C source files. Only useful with cgo, and always
 		compiled with the OS-native compiler.
-	.s, .S
+	.s, .S, .sx
 		Assembler source files.
 		If the package uses cgo or SWIG, these will be assembled with the
 		OS-native assembler (typically gcc (sic)); otherwise they
diff --git a/libgo/go/cmd/go/internal/imports/build.go b/libgo/go/cmd/go/internal/imports/build.go
index 3e9fe35..eb070ee 100644
--- a/libgo/go/cmd/go/internal/imports/build.go
+++ b/libgo/go/cmd/go/internal/imports/build.go
@@ -210,7 +210,7 @@
 	"illumos":   true,
 	"js":        true,
 	"linux":     true,
-	"nacl":      true,
+	"nacl":      true, // legacy; don't remove
 	"netbsd":    true,
 	"openbsd":   true,
 	"plan9":     true,
@@ -222,7 +222,7 @@
 var KnownArch = map[string]bool{
 	"386":         true,
 	"amd64":       true,
-	"amd64p32":    true,
+	"amd64p32":    true, // legacy; don't remove
 	"arm":         true,
 	"armbe":       true,
 	"arm64":       true,
diff --git a/libgo/go/cmd/go/internal/list/list.go b/libgo/go/cmd/go/internal/list/list.go
index a5f1abe..b393c67 100644
--- a/libgo/go/cmd/go/internal/list/list.go
+++ b/libgo/go/cmd/go/internal/list/list.go
@@ -287,7 +287,7 @@
 
 func init() {
 	CmdList.Run = runList // break init cycle
-	work.AddBuildFlags(CmdList)
+	work.AddBuildFlags(CmdList, work.DefaultBuildFlags)
 }
 
 var (
@@ -384,6 +384,22 @@
 		if modload.Init(); !modload.Enabled() {
 			base.Fatalf("go list -m: not using modules")
 		}
+
+		modload.InitMod() // Parses go.mod and sets cfg.BuildMod.
+		if cfg.BuildMod == "vendor" {
+			for _, arg := range args {
+				// In vendor mode, the module graph is incomplete: it contains only the
+				// explicit module dependencies and the modules that supply packages in
+				// the import graph. Reject queries that imply more information than that.
+				if arg == "all" {
+					base.Fatalf("go list -m: can't compute 'all' using the vendor directory\n\t(Use -mod=mod or -mod=readonly to bypass.)")
+				}
+				if strings.Contains(arg, "...") {
+					base.Fatalf("go list -m: can't match module patterns using the vendor directory\n\t(Use -mod=mod or -mod=readonly to bypass.)")
+				}
+			}
+		}
+
 		modload.LoadBuildList()
 
 		mods := modload.ListModules(args, *listU, *listVersions)
diff --git a/libgo/go/cmd/go/internal/load/pkg.go b/libgo/go/cmd/go/internal/load/pkg.go
index a50450e..06b6e23 100644
--- a/libgo/go/cmd/go/internal/load/pkg.go
+++ b/libgo/go/cmd/go/internal/load/pkg.go
@@ -7,9 +7,11 @@
 
 import (
 	"bytes"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"go/build"
+	"go/scanner"
 	"go/token"
 	"io/ioutil"
 	"os"
@@ -40,7 +42,7 @@
 	ModPackageModuleInfo func(path string) *modinfo.ModulePublic                                                  // return module info for Package struct
 	ModImportPaths       func(args []string) []*search.Match                                                      // expand import paths
 	ModPackageBuildInfo  func(main string, deps []string) string                                                  // return module info to embed in binary
-	ModInfoProg          func(info string) []byte                                                                 // wrap module info in .go code for binary
+	ModInfoProg          func(info string, isgccgo bool) []byte                                                   // wrap module info in .go code for binary
 	ModImportFromFiles   func([]string)                                                                           // update go.mod to add modules for imports in these files
 	ModDirImportPath     func(string) string                                                                      // return effective import path for directory
 )
@@ -304,9 +306,9 @@
 type PackageError struct {
 	ImportStack   []string // shortest path from package named on command line to this one
 	Pos           string   // position of error
-	Err           string   // the error itself
-	IsImportCycle bool     `json:"-"` // the error is an import cycle
-	Hard          bool     `json:"-"` // whether the error is soft or hard; soft errors are ignored in some places
+	Err           error    // the error itself
+	IsImportCycle bool     // the error is an import cycle
+	Hard          bool     // whether the error is soft or hard; soft errors are ignored in some places
 }
 
 func (p *PackageError) Error() string {
@@ -317,12 +319,77 @@
 	if p.Pos != "" {
 		// Omit import stack. The full path to the file where the error
 		// is the most important thing.
-		return p.Pos + ": " + p.Err
+		return p.Pos + ": " + p.Err.Error()
 	}
-	if len(p.ImportStack) == 0 {
-		return p.Err
+
+	// If the error is an ImportPathError, and the last path on the stack appears
+	// in the error message, omit that path from the stack to avoid repetition.
+	// If an ImportPathError wraps another ImportPathError that matches the
+	// last path on the stack, we don't omit the path. An error like
+	// "package A imports B: error loading C caused by B" would not be clearer
+	// if "imports B" were omitted.
+	stack := p.ImportStack
+	var ierr ImportPathError
+	if len(stack) > 0 && errors.As(p.Err, &ierr) && ierr.ImportPath() == stack[len(stack)-1] {
+		stack = stack[:len(stack)-1]
 	}
-	return "package " + strings.Join(p.ImportStack, "\n\timports ") + ": " + p.Err
+	if len(stack) == 0 {
+		return p.Err.Error()
+	}
+	return "package " + strings.Join(stack, "\n\timports ") + ": " + p.Err.Error()
+}
+
+// PackageError implements MarshalJSON so that Err is marshaled as a string
+// and non-essential fields are omitted.
+func (p *PackageError) MarshalJSON() ([]byte, error) {
+	perr := struct {
+		ImportStack []string
+		Pos         string
+		Err         string
+	}{p.ImportStack, p.Pos, p.Err.Error()}
+	return json.Marshal(perr)
+}
+
+// ImportPathError is a type of error that prevents a package from being loaded
+// for a given import path. When such a package is loaded, a *Package is
+// returned with Err wrapping an ImportPathError: the error is attached to
+// the imported package, not the importing package.
+//
+// The string returned by ImportPath must appear in the string returned by
+// Error. Errors that wrap ImportPathError (such as PackageError) may omit
+// the import path.
+type ImportPathError interface {
+	error
+	ImportPath() string
+}
+
+type importError struct {
+	importPath string
+	err        error // created with fmt.Errorf
+}
+
+var _ ImportPathError = (*importError)(nil)
+
+func ImportErrorf(path, format string, args ...interface{}) ImportPathError {
+	err := &importError{importPath: path, err: fmt.Errorf(format, args...)}
+	if errStr := err.Error(); !strings.Contains(errStr, path) {
+		panic(fmt.Sprintf("path %q not in error %q", path, errStr))
+	}
+	return err
+}
+
+func (e *importError) Error() string {
+	return e.err.Error()
+}
+
+func (e *importError) Unwrap() error {
+	// Don't return e.err directly, since we're only wrapping an error if %w
+	// was passed to ImportErrorf.
+	return errors.Unwrap(e.err)
+}
+
+func (e *importError) ImportPath() string {
+	return e.importPath
 }
 
 // An ImportStack is a stack of import paths, possibly with the suffix " (test)" appended.
@@ -489,7 +556,7 @@
 				ImportPath: path,
 				Error: &PackageError{
 					ImportStack: stk.Copy(),
-					Err:         err.Error(),
+					Err:         err,
 				},
 			},
 		}
@@ -516,7 +583,7 @@
 		if !cfg.ModulesEnabled && path != cleanImport(path) {
 			p.Error = &PackageError{
 				ImportStack: stk.Copy(),
-				Err:         fmt.Sprintf("non-canonical import path: %q should be %q", path, pathpkg.Clean(path)),
+				Err:         fmt.Errorf("non-canonical import path: %q should be %q", path, pathpkg.Clean(path)),
 			}
 			p.Incomplete = true
 		}
@@ -527,7 +594,7 @@
 		return setErrorPos(perr, importPos)
 	}
 	if mode&ResolveImport != 0 {
-		if perr := disallowVendor(srcDir, parent, parentPath, path, p, stk); perr != p {
+		if perr := disallowVendor(srcDir, path, p, stk); perr != p {
 			return setErrorPos(perr, importPos)
 		}
 	}
@@ -536,20 +603,22 @@
 		perr := *p
 		perr.Error = &PackageError{
 			ImportStack: stk.Copy(),
-			Err:         fmt.Sprintf("import %q is a program, not an importable package", path),
+			Err:         ImportErrorf(path, "import %q is a program, not an importable package", path),
 		}
 		return setErrorPos(&perr, importPos)
 	}
 
 	if p.Internal.Local && parent != nil && !parent.Internal.Local {
 		perr := *p
-		errMsg := fmt.Sprintf("local import %q in non-local package", path)
+		var err error
 		if path == "." {
-			errMsg = "cannot import current directory"
+			err = ImportErrorf(path, "%s: cannot import current directory", path)
+		} else {
+			err = ImportErrorf(path, "local import %q in non-local package", path)
 		}
 		perr.Error = &PackageError{
 			ImportStack: stk.Copy(),
-			Err:         errMsg,
+			Err:         err,
 		}
 		return setErrorPos(&perr, importPos)
 	}
@@ -602,6 +671,11 @@
 	// we create from the full directory to the package.
 	// Otherwise it is the usual import path.
 	// For vendored imports, it is the expanded form.
+	//
+	// Note that when modules are enabled, local import paths are normally
+	// canonicalized by modload.ImportPaths before now. However, if there's an
+	// error resolving a local path, it will be returned untransformed
+	// so that 'go list -e' reports something useful.
 	importKey := importSpec{
 		path:        path,
 		parentPath:  parentPath,
@@ -1125,7 +1199,7 @@
 		if p.Error == nil {
 			p.Error = &PackageError{
 				ImportStack:   stk.Copy(),
-				Err:           "import cycle not allowed",
+				Err:           errors.New("import cycle not allowed"),
 				IsImportCycle: true,
 			}
 		}
@@ -1234,7 +1308,7 @@
 	perr := *p
 	perr.Error = &PackageError{
 		ImportStack: stk.Copy(),
-		Err:         "use of internal package " + p.ImportPath + " not allowed",
+		Err:         ImportErrorf(p.ImportPath, "use of internal package "+p.ImportPath+" not allowed"),
 	}
 	perr.Incomplete = true
 	return &perr
@@ -1259,11 +1333,10 @@
 	return 0, false
 }
 
-// disallowVendor checks that srcDir (containing package importerPath, if non-empty)
-// is allowed to import p as path.
+// disallowVendor checks that srcDir is allowed to import p as path.
 // If the import is allowed, disallowVendor returns the original package p.
 // If not, it returns a new package containing just an appropriate error.
-func disallowVendor(srcDir string, importer *Package, importerPath, path string, p *Package, stk *ImportStack) *Package {
+func disallowVendor(srcDir string, path string, p *Package, stk *ImportStack) *Package {
 	// The stack includes p.ImportPath.
 	// If that's the only thing on the stack, we started
 	// with a name given on the command line, not an
@@ -1281,7 +1354,7 @@
 		perr := *p
 		perr.Error = &PackageError{
 			ImportStack: stk.Copy(),
-			Err:         "must be imported as " + path[i+len("vendor/"):],
+			Err:         ImportErrorf(path, "%s must be imported as %s", path, path[i+len("vendor/"):]),
 		}
 		perr.Incomplete = true
 		return &perr
@@ -1335,7 +1408,7 @@
 	perr := *p
 	perr.Error = &PackageError{
 		ImportStack: stk.Copy(),
-		Err:         "use of vendored package not allowed",
+		Err:         errors.New("use of vendored package not allowed"),
 	}
 	perr.Incomplete = true
 	return &perr
@@ -1397,26 +1470,51 @@
 
 var foldPath = make(map[string]string)
 
-// DefaultExecName returns the default executable name
-// for a package with the import path importPath.
+// exeFromImportPath returns an executable name
+// for a package using the import path.
 //
-// The default executable name is the last element of the import path.
+// The executable name is the last element of the import path.
 // In module-aware mode, an additional rule is used on import paths
 // consisting of two or more path elements. If the last element is
 // a vN path element specifying the major version, then the
 // second last element of the import path is used instead.
-func DefaultExecName(importPath string) string {
-	_, elem := pathpkg.Split(importPath)
+func (p *Package) exeFromImportPath() string {
+	_, elem := pathpkg.Split(p.ImportPath)
 	if cfg.ModulesEnabled {
 		// If this is example.com/mycmd/v2, it's more useful to
 		// install it as mycmd than as v2. See golang.org/issue/24667.
-		if elem != importPath && isVersionElement(elem) {
-			_, elem = pathpkg.Split(pathpkg.Dir(importPath))
+		if elem != p.ImportPath && isVersionElement(elem) {
+			_, elem = pathpkg.Split(pathpkg.Dir(p.ImportPath))
 		}
 	}
 	return elem
 }
 
+// exeFromFiles returns an executable name for a package
+// using the first element in GoFiles or CgoFiles collections without the prefix.
+//
+// Returns empty string in case of empty collection.
+func (p *Package) exeFromFiles() string {
+	var src string
+	if len(p.GoFiles) > 0 {
+		src = p.GoFiles[0]
+	} else if len(p.CgoFiles) > 0 {
+		src = p.CgoFiles[0]
+	} else {
+		return ""
+	}
+	_, elem := filepath.Split(src)
+	return elem[:len(elem)-len(".go")]
+}
+
+// DefaultExecName returns the default executable name for a package
+func (p *Package) DefaultExecName() string {
+	if p.Internal.CmdlineFiles {
+		return p.exeFromFiles()
+	}
+	return p.exeFromImportPath()
+}
+
 // load populates p using information from bp, err, which should
 // be the result of calling build.Context.Import.
 func (p *Package) load(stk *ImportStack, bp *build.Package, err error) {
@@ -1428,17 +1526,30 @@
 		p.Internal.LocalPrefix = dirToImportPath(p.Dir)
 	}
 
+	// setError sets p.Error if it hasn't already been set. We may proceed
+	// after encountering some errors so that 'go list -e' has more complete
+	// output. If there's more than one error, we should report the first.
+	setError := func(err error) {
+		if p.Error == nil {
+			p.Error = &PackageError{
+				ImportStack: stk.Copy(),
+				Err:         err,
+			}
+		}
+	}
+
 	if err != nil {
 		if _, ok := err.(*build.NoGoError); ok {
 			err = &NoGoError{Package: p}
 		}
 		p.Incomplete = true
-		err = base.ExpandScanner(err)
-		p.Error = &PackageError{
-			ImportStack: stk.Copy(),
-			Err:         err.Error(),
+
+		setError(base.ExpandScanner(err))
+		if _, isScanErr := err.(scanner.ErrorList); !isScanErr {
+			return
 		}
-		return
+		// Fall through if there was an error parsing a file. 'go list -e' should
+		// still report imports and other metadata.
 	}
 
 	useBindir := p.Name == "main"
@@ -1453,11 +1564,11 @@
 		// Report an error when the old code.google.com/p/go.tools paths are used.
 		if InstallTargetDir(p) == StalePath {
 			newPath := strings.Replace(p.ImportPath, "code.google.com/p/go.", "golang.org/x/", 1)
-			e := fmt.Sprintf("the %v command has moved; use %v instead.", p.ImportPath, newPath)
-			p.Error = &PackageError{Err: e}
+			e := ImportErrorf(p.ImportPath, "the %v command has moved; use %v instead.", p.ImportPath, newPath)
+			setError(e)
 			return
 		}
-		elem := DefaultExecName(p.ImportPath)
+		elem := p.DefaultExecName()
 		full := cfg.BuildContext.GOOS + "_" + cfg.BuildContext.GOARCH + "/" + elem
 		if cfg.BuildContext.GOOS != base.ToolGOOS || cfg.BuildContext.GOARCH != base.ToolGOARCH {
 			// Install cross-compiled binaries to subdirectories of bin.
@@ -1493,7 +1604,10 @@
 		p.Target = ""
 	} else {
 		p.Target = p.Internal.Build.PkgObj
-		if cfg.BuildLinkshared {
+		if cfg.BuildLinkshared && p.Target != "" {
+			// TODO(bcmills): The reliance on p.Target implies that -linkshared does
+			// not work for any package that lacks a Target — such as a non-main
+			// package in module mode. We should probably fix that.
 			shlibnamefile := p.Target[:len(p.Target)-2] + ".shlibname"
 			shlib, err := ioutil.ReadFile(shlibnamefile)
 			if err != nil && !os.IsNotExist(err) {
@@ -1564,10 +1678,7 @@
 	inputs := p.AllFiles()
 	f1, f2 := str.FoldDup(inputs)
 	if f1 != "" {
-		p.Error = &PackageError{
-			ImportStack: stk.Copy(),
-			Err:         fmt.Sprintf("case-insensitive file name collision: %q and %q", f1, f2),
-		}
+		setError(fmt.Errorf("case-insensitive file name collision: %q and %q", f1, f2))
 		return
 	}
 
@@ -1580,25 +1691,16 @@
 	// so we shouldn't see any _cgo_ files anyway, but just be safe.
 	for _, file := range inputs {
 		if !SafeArg(file) || strings.HasPrefix(file, "_cgo_") {
-			p.Error = &PackageError{
-				ImportStack: stk.Copy(),
-				Err:         fmt.Sprintf("invalid input file name %q", file),
-			}
+			setError(fmt.Errorf("invalid input file name %q", file))
 			return
 		}
 	}
 	if name := pathpkg.Base(p.ImportPath); !SafeArg(name) {
-		p.Error = &PackageError{
-			ImportStack: stk.Copy(),
-			Err:         fmt.Sprintf("invalid input directory name %q", name),
-		}
+		setError(fmt.Errorf("invalid input directory name %q", name))
 		return
 	}
 	if !SafeArg(p.ImportPath) {
-		p.Error = &PackageError{
-			ImportStack: stk.Copy(),
-			Err:         fmt.Sprintf("invalid import path %q", p.ImportPath),
-		}
+		setError(ImportErrorf(p.ImportPath, "invalid import path %q", p.ImportPath))
 		return
 	}
 
@@ -1643,31 +1745,24 @@
 		// code; see issue #16050).
 	}
 
-	setError := func(msg string) {
-		p.Error = &PackageError{
-			ImportStack: stk.Copy(),
-			Err:         msg,
-		}
-	}
-
 	// The gc toolchain only permits C source files with cgo or SWIG.
 	if len(p.CFiles) > 0 && !p.UsesCgo() && !p.UsesSwig() && cfg.BuildContext.Compiler == "gc" {
-		setError(fmt.Sprintf("C source files not allowed when not using cgo or SWIG: %s", strings.Join(p.CFiles, " ")))
+		setError(fmt.Errorf("C source files not allowed when not using cgo or SWIG: %s", strings.Join(p.CFiles, " ")))
 		return
 	}
 
 	// C++, Objective-C, and Fortran source files are permitted only with cgo or SWIG,
 	// regardless of toolchain.
 	if len(p.CXXFiles) > 0 && !p.UsesCgo() && !p.UsesSwig() {
-		setError(fmt.Sprintf("C++ source files not allowed when not using cgo or SWIG: %s", strings.Join(p.CXXFiles, " ")))
+		setError(fmt.Errorf("C++ source files not allowed when not using cgo or SWIG: %s", strings.Join(p.CXXFiles, " ")))
 		return
 	}
 	if len(p.MFiles) > 0 && !p.UsesCgo() && !p.UsesSwig() {
-		setError(fmt.Sprintf("Objective-C source files not allowed when not using cgo or SWIG: %s", strings.Join(p.MFiles, " ")))
+		setError(fmt.Errorf("Objective-C source files not allowed when not using cgo or SWIG: %s", strings.Join(p.MFiles, " ")))
 		return
 	}
 	if len(p.FFiles) > 0 && !p.UsesCgo() && !p.UsesSwig() {
-		setError(fmt.Sprintf("Fortran source files not allowed when not using cgo or SWIG: %s", strings.Join(p.FFiles, " ")))
+		setError(fmt.Errorf("Fortran source files not allowed when not using cgo or SWIG: %s", strings.Join(p.FFiles, " ")))
 		return
 	}
 
@@ -1676,17 +1771,17 @@
 	if other := foldPath[fold]; other == "" {
 		foldPath[fold] = p.ImportPath
 	} else if other != p.ImportPath {
-		setError(fmt.Sprintf("case-insensitive import collision: %q and %q", p.ImportPath, other))
+		setError(ImportErrorf(p.ImportPath, "case-insensitive import collision: %q and %q", p.ImportPath, other))
 		return
 	}
 
-	if cfg.ModulesEnabled {
+	if cfg.ModulesEnabled && p.Error == nil {
 		mainPath := p.ImportPath
 		if p.Internal.CmdlineFiles {
 			mainPath = "command-line-arguments"
 		}
 		p.Module = ModPackageModuleInfo(mainPath)
-		if p.Name == "main" {
+		if p.Name == "main" && len(p.DepsErrors) == 0 {
 			p.Internal.BuildInfo = ModPackageBuildInfo(mainPath, p.Deps)
 		}
 	}
@@ -1956,9 +2051,14 @@
 // cannot be loaded at all.
 // The packages that fail to load will have p.Error != nil.
 func PackagesAndErrors(patterns []string) []*Package {
-	if len(patterns) > 0 {
-		for _, p := range patterns {
-			if strings.HasSuffix(p, ".go") {
+	for _, p := range patterns {
+		// Listing is only supported with all patterns referring to either:
+		// - Files that are part of the same directory.
+		// - Explicit package paths or patterns.
+		if strings.HasSuffix(p, ".go") {
+			// We need to test whether the path is an actual Go file and not a
+			// package path or pattern ending in '.go' (see golang.org/issue/34653).
+			if fi, err := os.Stat(p); err == nil && !fi.IsDir() {
 				return []*Package{GoFilesPackage(patterns)}
 			}
 		}
@@ -2078,7 +2178,7 @@
 			pkg.Internal.CmdlineFiles = true
 			pkg.Name = f
 			pkg.Error = &PackageError{
-				Err: fmt.Sprintf("named files must be .go files: %s", pkg.Name),
+				Err: fmt.Errorf("named files must be .go files: %s", pkg.Name),
 			}
 			return pkg
 		}
@@ -2141,11 +2241,8 @@
 	pkg.Match = gofiles
 
 	if pkg.Name == "main" {
-		_, elem := filepath.Split(gofiles[0])
-		exe := elem[:len(elem)-len(".go")] + cfg.ExeSuffix
-		if cfg.BuildO == "" {
-			cfg.BuildO = exe
-		}
+		exe := pkg.DefaultExecName() + cfg.ExeSuffix
+
 		if cfg.GOBIN != "" {
 			pkg.Target = filepath.Join(cfg.GOBIN, exe)
 		} else if cfg.ModulesEnabled {
diff --git a/libgo/go/cmd/go/internal/load/pkg_test.go b/libgo/go/cmd/go/internal/load/pkg_test.go
index 9ddc20d..1e59fb9 100644
--- a/libgo/go/cmd/go/internal/load/pkg_test.go
+++ b/libgo/go/cmd/go/internal/load/pkg_test.go
@@ -5,39 +5,49 @@
 	"testing"
 )
 
-func TestDefaultExecName(t *testing.T) {
+func TestPkgDefaultExecName(t *testing.T) {
 	oldModulesEnabled := cfg.ModulesEnabled
 	defer func() { cfg.ModulesEnabled = oldModulesEnabled }()
 	for _, tt := range []struct {
 		in         string
+		files      []string
 		wantMod    string
 		wantGopath string
 	}{
-		{"example.com/mycmd", "mycmd", "mycmd"},
-		{"example.com/mycmd/v0", "v0", "v0"},
-		{"example.com/mycmd/v1", "v1", "v1"},
-		{"example.com/mycmd/v2", "mycmd", "v2"}, // Semantic import versioning, use second last element in module mode.
-		{"example.com/mycmd/v3", "mycmd", "v3"}, // Semantic import versioning, use second last element in module mode.
-		{"mycmd", "mycmd", "mycmd"},
-		{"mycmd/v0", "v0", "v0"},
-		{"mycmd/v1", "v1", "v1"},
-		{"mycmd/v2", "mycmd", "v2"}, // Semantic import versioning, use second last element in module mode.
-		{"v0", "v0", "v0"},
-		{"v1", "v1", "v1"},
-		{"v2", "v2", "v2"},
+		{"example.com/mycmd", []string{}, "mycmd", "mycmd"},
+		{"example.com/mycmd/v0", []string{}, "v0", "v0"},
+		{"example.com/mycmd/v1", []string{}, "v1", "v1"},
+		{"example.com/mycmd/v2", []string{}, "mycmd", "v2"}, // Semantic import versioning, use second last element in module mode.
+		{"example.com/mycmd/v3", []string{}, "mycmd", "v3"}, // Semantic import versioning, use second last element in module mode.
+		{"mycmd", []string{}, "mycmd", "mycmd"},
+		{"mycmd/v0", []string{}, "v0", "v0"},
+		{"mycmd/v1", []string{}, "v1", "v1"},
+		{"mycmd/v2", []string{}, "mycmd", "v2"}, // Semantic import versioning, use second last element in module mode.
+		{"v0", []string{}, "v0", "v0"},
+		{"v1", []string{}, "v1", "v1"},
+		{"v2", []string{}, "v2", "v2"},
+		{"command-line-arguments", []string{"output.go", "foo.go"}, "output", "output"},
 	} {
 		{
 			cfg.ModulesEnabled = true
-			gotMod := DefaultExecName(tt.in)
+			pkg := new(Package)
+			pkg.ImportPath = tt.in
+			pkg.GoFiles = tt.files
+			pkg.Internal.CmdlineFiles = len(tt.files) > 0
+			gotMod := pkg.DefaultExecName()
 			if gotMod != tt.wantMod {
-				t.Errorf("DefaultExecName(%q) in module mode = %v; want %v", tt.in, gotMod, tt.wantMod)
+				t.Errorf("pkg.DefaultExecName with ImportPath = %q in module mode = %v; want %v", tt.in, gotMod, tt.wantMod)
 			}
 		}
 		{
 			cfg.ModulesEnabled = false
-			gotGopath := DefaultExecName(tt.in)
+			pkg := new(Package)
+			pkg.ImportPath = tt.in
+			pkg.GoFiles = tt.files
+			pkg.Internal.CmdlineFiles = len(tt.files) > 0
+			gotGopath := pkg.DefaultExecName()
 			if gotGopath != tt.wantGopath {
-				t.Errorf("DefaultExecName(%q) in gopath mode = %v; want %v", tt.in, gotGopath, tt.wantGopath)
+				t.Errorf("pkg.DefaultExecName with ImportPath = %q in gopath mode = %v; want %v", tt.in, gotGopath, tt.wantGopath)
 			}
 		}
 	}
diff --git a/libgo/go/cmd/go/internal/load/test.go b/libgo/go/cmd/go/internal/load/test.go
index afff5de..fefc7d2 100644
--- a/libgo/go/cmd/go/internal/load/test.go
+++ b/libgo/go/cmd/go/internal/load/test.go
@@ -110,7 +110,7 @@
 			// non-test copy of a package.
 			ptestErr = &PackageError{
 				ImportStack:   testImportStack(stk[0], p1, p.ImportPath),
-				Err:           "import cycle not allowed in test",
+				Err:           errors.New("import cycle not allowed in test"),
 				IsImportCycle: true,
 			}
 		}
@@ -271,7 +271,7 @@
 	// afterward that gathers t.Cover information.
 	t, err := loadTestFuncs(ptest)
 	if err != nil && pmain.Error == nil {
-		pmain.Error = &PackageError{Err: err.Error()}
+		pmain.Error = &PackageError{Err: err}
 	}
 	t.Cover = cover
 	if len(ptest.GoFiles)+len(ptest.CgoFiles) > 0 {
@@ -322,7 +322,7 @@
 
 	data, err := formatTestmain(t)
 	if err != nil && pmain.Error == nil {
-		pmain.Error = &PackageError{Err: err.Error()}
+		pmain.Error = &PackageError{Err: err}
 	}
 	if data != nil {
 		pmain.Internal.TestmainGo = &data
@@ -399,10 +399,13 @@
 			}
 		}
 
-		// Don't compile build info from a main package. This can happen
-		// if -coverpkg patterns include main packages, since those packages
-		// are imported by pmain. See golang.org/issue/30907.
-		if p.Internal.BuildInfo != "" && p != pmain {
+		// Force main packages the test imports to be built as libraries.
+		// Normal imports of main packages are forbidden by the package loader,
+		// but this can still happen if -coverpkg patterns include main packages:
+		// covered packages are imported by pmain. Linking multiple packages
+		// compiled with '-p main' causes duplicate symbol errors.
+		// See golang.org/issue/30907, golang.org/issue/34114.
+		if p.Name == "main" && p != pmain && p != ptest {
 			split()
 		}
 	}
diff --git a/libgo/go/cmd/go/internal/lockedfile/internal/filelock/filelock_test.go b/libgo/go/cmd/go/internal/lockedfile/internal/filelock/filelock_test.go
index 581a978..faf7344 100644
--- a/libgo/go/cmd/go/internal/lockedfile/internal/filelock/filelock_test.go
+++ b/libgo/go/cmd/go/internal/lockedfile/internal/filelock/filelock_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !js,!nacl,!plan9
+// +build !js,!plan9
 
 package filelock_test
 
diff --git a/libgo/go/cmd/go/internal/lockedfile/lockedfile.go b/libgo/go/cmd/go/internal/lockedfile/lockedfile.go
index bb184b1..59b2dba 100644
--- a/libgo/go/cmd/go/internal/lockedfile/lockedfile.go
+++ b/libgo/go/cmd/go/internal/lockedfile/lockedfile.go
@@ -120,3 +120,68 @@
 	}
 	return err
 }
+
+// Transform invokes t with the result of reading the named file, with its lock
+// still held.
+//
+// If t returns a nil error, Transform then writes the returned contents back to
+// the file, making a best effort to preserve existing contents on error.
+//
+// t must not modify the slice passed to it.
+func Transform(name string, t func([]byte) ([]byte, error)) (err error) {
+	f, err := Edit(name)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	old, err := ioutil.ReadAll(f)
+	if err != nil {
+		return err
+	}
+
+	new, err := t(old)
+	if err != nil {
+		return err
+	}
+
+	if len(new) > len(old) {
+		// The overall file size is increasing, so write the tail first: if we're
+		// about to run out of space on the disk, we would rather detect that
+		// failure before we have overwritten the original contents.
+		if _, err := f.WriteAt(new[len(old):], int64(len(old))); err != nil {
+			// Make a best effort to remove the incomplete tail.
+			f.Truncate(int64(len(old)))
+			return err
+		}
+	}
+
+	// We're about to overwrite the old contents. In case of failure, make a best
+	// effort to roll back before we close the file.
+	defer func() {
+		if err != nil {
+			if _, err := f.WriteAt(old, 0); err == nil {
+				f.Truncate(int64(len(old)))
+			}
+		}
+	}()
+
+	if len(new) >= len(old) {
+		if _, err := f.WriteAt(new[:len(old)], 0); err != nil {
+			return err
+		}
+	} else {
+		if _, err := f.WriteAt(new, 0); err != nil {
+			return err
+		}
+		// The overall file size is decreasing, so shrink the file to its final size
+		// after writing. We do this after writing (instead of before) so that if
+		// the write fails, enough filesystem space will likely still be reserved
+		// to contain the previous contents.
+		if err := f.Truncate(int64(len(new))); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/libgo/go/cmd/go/internal/lockedfile/lockedfile_test.go b/libgo/go/cmd/go/internal/lockedfile/lockedfile_test.go
index 6d5819e..8f7a7d5 100644
--- a/libgo/go/cmd/go/internal/lockedfile/lockedfile_test.go
+++ b/libgo/go/cmd/go/internal/lockedfile/lockedfile_test.go
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// js and nacl do not support inter-process file locking.
-// +build !js,!nacl
+// js does not support inter-process file locking.
+// +build !js
 
 package lockedfile_test
 
diff --git a/libgo/go/cmd/go/internal/lockedfile/transform_test.go b/libgo/go/cmd/go/internal/lockedfile/transform_test.go
new file mode 100644
index 0000000..407d48e
--- /dev/null
+++ b/libgo/go/cmd/go/internal/lockedfile/transform_test.go
@@ -0,0 +1,104 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// js does not support inter-process file locking.
+// +build !js
+
+package lockedfile_test
+
+import (
+	"bytes"
+	"encoding/binary"
+	"math/rand"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"cmd/go/internal/lockedfile"
+)
+
+func isPowerOf2(x int) bool {
+	return x > 0 && x&(x-1) == 0
+}
+
+func roundDownToPowerOf2(x int) int {
+	if x <= 0 {
+		panic("nonpositive x")
+	}
+	bit := 1
+	for x != bit {
+		x = x &^ bit
+		bit <<= 1
+	}
+	return x
+}
+
+func TestTransform(t *testing.T) {
+	dir, remove := mustTempDir(t)
+	defer remove()
+	path := filepath.Join(dir, "blob.bin")
+
+	const maxChunkWords = 8 << 10
+	buf := make([]byte, 2*maxChunkWords*8)
+	for i := uint64(0); i < 2*maxChunkWords; i++ {
+		binary.LittleEndian.PutUint64(buf[i*8:], i)
+	}
+	if err := lockedfile.Write(path, bytes.NewReader(buf[:8]), 0666); err != nil {
+		t.Fatal(err)
+	}
+
+	var attempts int64 = 128
+	if !testing.Short() {
+		attempts *= 16
+	}
+	const parallel = 32
+
+	var sem = make(chan bool, parallel)
+
+	for n := attempts; n > 0; n-- {
+		sem <- true
+		go func() {
+			defer func() { <-sem }()
+
+			time.Sleep(time.Duration(rand.Intn(100)) * time.Microsecond)
+			chunkWords := roundDownToPowerOf2(rand.Intn(maxChunkWords) + 1)
+			offset := rand.Intn(chunkWords)
+
+			err := lockedfile.Transform(path, func(data []byte) (chunk []byte, err error) {
+				chunk = buf[offset*8 : (offset+chunkWords)*8]
+
+				if len(data)&^7 != len(data) {
+					t.Errorf("read %d bytes, but each write is an integer multiple of 8 bytes", len(data))
+					return chunk, nil
+				}
+
+				words := len(data) / 8
+				if !isPowerOf2(words) {
+					t.Errorf("read %d 8-byte words, but each write is a power-of-2 number of words", words)
+					return chunk, nil
+				}
+
+				u := binary.LittleEndian.Uint64(data)
+				for i := 1; i < words; i++ {
+					next := binary.LittleEndian.Uint64(data[i*8:])
+					if next != u+1 {
+						t.Errorf("wrote sequential integers, but read integer out of sequence at offset %d", i)
+						return chunk, nil
+					}
+					u = next
+				}
+
+				return chunk, nil
+			})
+
+			if err != nil {
+				t.Errorf("unexpected error from Transform: %v", err)
+			}
+		}()
+	}
+
+	for n := parallel; n > 0; n-- {
+		sem <- true
+	}
+}
diff --git a/libgo/go/cmd/go/internal/modcmd/download.go b/libgo/go/cmd/go/internal/modcmd/download.go
index 60d0d5b..5db0e46 100644
--- a/libgo/go/cmd/go/internal/modcmd/download.go
+++ b/libgo/go/cmd/go/internal/modcmd/download.go
@@ -5,19 +5,21 @@
 package modcmd
 
 import (
-	"cmd/go/internal/cfg"
 	"encoding/json"
 	"os"
 
 	"cmd/go/internal/base"
+	"cmd/go/internal/cfg"
 	"cmd/go/internal/modfetch"
 	"cmd/go/internal/modload"
-	"cmd/go/internal/module"
 	"cmd/go/internal/par"
+	"cmd/go/internal/work"
+
+	"golang.org/x/mod/module"
 )
 
 var cmdDownload = &base.Command{
-	UsageLine: "go mod download [-json] [modules]",
+	UsageLine: "go mod download [-x] [-json] [modules]",
 	Short:     "download modules to local cache",
 	Long: `
 Download downloads the named modules, which can be module patterns selecting
@@ -43,9 +45,10 @@
         Dir      string // absolute path to cached source root directory
         Sum      string // checksum for path, version (as in go.sum)
         GoModSum string // checksum for go.mod (as in go.sum)
-        Latest   bool   // would @latest resolve to this version?
     }
 
+The -x flag causes download to print the commands download executes.
+
 See 'go help modules' for more about module queries.
 	`,
 }
@@ -54,6 +57,10 @@
 
 func init() {
 	cmdDownload.Run = runDownload // break init cycle
+
+	// TODO(jayconrod): https://golang.org/issue/35849 Apply -x to other 'go mod' commands.
+	cmdDownload.Flag.BoolVar(&cfg.BuildX, "x", false, "")
+	work.AddModCommonFlags(cmdDownload)
 }
 
 type moduleJSON struct {
@@ -66,7 +73,6 @@
 	Dir      string `json:",omitempty"`
 	Sum      string `json:",omitempty"`
 	GoModSum string `json:",omitempty"`
-	Latest   bool   `json:",omitempty"`
 }
 
 func runDownload(cmd *base.Command, args []string) {
@@ -79,6 +85,17 @@
 	}
 	if len(args) == 0 {
 		args = []string{"all"}
+	} else if modload.HasModRoot() {
+		modload.InitMod() // to fill Target
+		targetAtLatest := modload.Target.Path + "@latest"
+		targetAtUpgrade := modload.Target.Path + "@upgrade"
+		targetAtPatch := modload.Target.Path + "@patch"
+		for _, arg := range args {
+			switch arg {
+			case modload.Target.Path, targetAtLatest, targetAtUpgrade, targetAtPatch:
+				os.Stderr.WriteString("go mod download: skipping argument " + arg + " that resolves to the main module\n")
+			}
+		}
 	}
 
 	var mods []*moduleJSON
@@ -90,7 +107,8 @@
 			info = info.Replace
 		}
 		if info.Version == "" && info.Error == nil {
-			// main module
+			// main module or module replaced with file path.
+			// Nothing to download.
 			continue
 		}
 		m := &moduleJSON{
@@ -105,31 +123,6 @@
 		work.Add(m)
 	}
 
-	latest := map[string]string{} // path → version
-	if *downloadJSON {
-		// We need to populate the Latest field, but if the main module depends on a
-		// version newer than latest — or if the version requested on the command
-		// line is itself newer than latest — that's not trivial to determine from
-		// the info returned by ListModules. Instead, we issue a separate
-		// ListModules request for "latest", which should be inexpensive relative to
-		// downloading the modules.
-		var latestArgs []string
-		for _, m := range mods {
-			if m.Error != "" {
-				continue
-			}
-			latestArgs = append(latestArgs, m.Path+"@latest")
-		}
-
-		if len(latestArgs) > 0 {
-			for _, info := range modload.ListModules(latestArgs, listU, listVersions) {
-				if info.Version != "" {
-					latest[info.Path] = info.Version
-				}
-			}
-		}
-	}
-
 	work.Do(10, func(item interface{}) {
 		m := item.(*moduleJSON)
 		var err error
@@ -160,9 +153,6 @@
 			m.Error = err.Error()
 			return
 		}
-		if latest[m.Path] == m.Version {
-			m.Latest = true
-		}
 	})
 
 	if *downloadJSON {
diff --git a/libgo/go/cmd/go/internal/modcmd/edit.go b/libgo/go/cmd/go/internal/modcmd/edit.go
index 1be8b7c..dbbfb96 100644
--- a/libgo/go/cmd/go/internal/modcmd/edit.go
+++ b/libgo/go/cmd/go/internal/modcmd/edit.go
@@ -9,17 +9,19 @@
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
-	"path/filepath"
 	"strings"
 
 	"cmd/go/internal/base"
+	"cmd/go/internal/lockedfile"
 	"cmd/go/internal/modfetch"
-	"cmd/go/internal/modfile"
 	"cmd/go/internal/modload"
-	"cmd/go/internal/module"
+	"cmd/go/internal/work"
+
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
 )
 
 var cmdEdit = &base.Command{
@@ -53,12 +55,17 @@
 add and drop an exclusion for the given module path and version.
 Note that -exclude=path@version is a no-op if that exclusion already exists.
 
-The -replace=old[@v]=new[@v] and -dropreplace=old[@v] flags
-add and drop a replacement of the given module path and version pair.
-If the @v in old@v is omitted, the replacement applies to all versions
-with the old module path. If the @v in new@v is omitted, the new path
-should be a local module root directory, not a module path.
-Note that -replace overrides any existing replacements for old[@v].
+The -replace=old[@v]=new[@v] flag adds a replacement of the given
+module path and version pair. If the @v in old@v is omitted, a
+replacement without a version on the left side is added, which applies
+to all versions of the old module path. If the @v in new@v is omitted,
+the new path should be a local module root directory, not a module
+path. Note that -replace overrides any redundant replacements for old[@v],
+so omitting @v will drop existing replacements for specific versions.
+
+The -dropreplace=old[@v] flag drops a replacement of the given
+module path and version pair. If the @v is omitted, a replacement without
+a version on the left side is dropped.
 
 The -require, -droprequire, -exclude, -dropexclude, -replace,
 and -dropreplace editing flags may be repeated, and the changes
@@ -130,6 +137,7 @@
 	cmdEdit.Flag.Var(flagFunc(flagReplace), "replace", "")
 	cmdEdit.Flag.Var(flagFunc(flagDropExclude), "dropexclude", "")
 
+	work.AddModCommonFlags(cmdEdit)
 	base.AddBuildFlagsNX(&cmdEdit.Flag)
 }
 
@@ -157,11 +165,11 @@
 	if len(args) == 1 {
 		gomod = args[0]
 	} else {
-		gomod = filepath.Join(modload.ModRoot(), "go.mod")
+		gomod = modload.ModFilePath()
 	}
 
 	if *editModule != "" {
-		if err := module.CheckPath(*editModule); err != nil {
+		if err := module.CheckImportPath(*editModule); err != nil {
 			base.Fatalf("go mod: invalid -module: %v", err)
 		}
 	}
@@ -172,7 +180,7 @@
 		}
 	}
 
-	data, err := ioutil.ReadFile(gomod)
+	data, err := lockedfile.Read(gomod)
 	if err != nil {
 		base.Fatalf("go: %v", err)
 	}
@@ -215,13 +223,19 @@
 		return
 	}
 
-	unlock := modfetch.SideLock()
-	defer unlock()
-	lockedData, err := ioutil.ReadFile(gomod)
-	if err == nil && !bytes.Equal(lockedData, data) {
-		base.Fatalf("go: go.mod changed during editing; not overwriting")
+	// Make a best-effort attempt to acquire the side lock, only to exclude
+	// previous versions of the 'go' command from making simultaneous edits.
+	if unlock, err := modfetch.SideLock(); err == nil {
+		defer unlock()
 	}
-	if err := ioutil.WriteFile(gomod, out, 0666); err != nil {
+
+	err = lockedfile.Transform(gomod, func(lockedData []byte) ([]byte, error) {
+		if !bytes.Equal(lockedData, data) {
+			return nil, errors.New("go.mod changed during editing; not overwriting")
+		}
+		return out, nil
+	})
+	if err != nil {
 		base.Fatalf("go: %v", err)
 	}
 }
@@ -233,7 +247,7 @@
 		base.Fatalf("go mod: -%s=%s: need path@version", flag, arg)
 	}
 	path, version = strings.TrimSpace(arg[:i]), strings.TrimSpace(arg[i+1:])
-	if err := module.CheckPath(path); err != nil {
+	if err := module.CheckImportPath(path); err != nil {
 		base.Fatalf("go mod: -%s=%s: invalid path: %v", flag, arg, err)
 	}
 
@@ -255,7 +269,7 @@
 		base.Fatalf("go mod: -%s=%s: need just path, not path@version", flag, arg)
 	}
 	path = arg
-	if err := module.CheckPath(path); err != nil {
+	if err := module.CheckImportPath(path); err != nil {
 		base.Fatalf("go mod: -%s=%s: invalid path: %v", flag, arg, err)
 	}
 	return path
@@ -269,7 +283,7 @@
 	} else {
 		path, version = strings.TrimSpace(arg[:i]), strings.TrimSpace(arg[i+1:])
 	}
-	if err := module.CheckPath(path); err != nil {
+	if err := module.CheckImportPath(path); err != nil {
 		if !allowDirPath || !modfile.IsDirectoryPath(path) {
 			return path, version, fmt.Errorf("invalid %s path: %v", adj, err)
 		}
diff --git a/libgo/go/cmd/go/internal/modcmd/graph.go b/libgo/go/cmd/go/internal/modcmd/graph.go
index 8fcb84f..27ae935 100644
--- a/libgo/go/cmd/go/internal/modcmd/graph.go
+++ b/libgo/go/cmd/go/internal/modcmd/graph.go
@@ -8,14 +8,16 @@
 
 import (
 	"bufio"
-	"cmd/go/internal/cfg"
 	"os"
 	"sort"
 
 	"cmd/go/internal/base"
+	"cmd/go/internal/cfg"
 	"cmd/go/internal/modload"
-	"cmd/go/internal/module"
 	"cmd/go/internal/par"
+	"cmd/go/internal/work"
+
+	"golang.org/x/mod/module"
 )
 
 var cmdGraph = &base.Command{
@@ -30,6 +32,10 @@
 	Run: runGraph,
 }
 
+func init() {
+	work.AddModCommonFlags(cmdGraph)
+}
+
 func runGraph(cmd *base.Command, args []string) {
 	if len(args) > 0 {
 		base.Fatalf("go mod graph: graph takes no arguments")
diff --git a/libgo/go/cmd/go/internal/modcmd/init.go b/libgo/go/cmd/go/internal/modcmd/init.go
index b94453b..714ff2e 100644
--- a/libgo/go/cmd/go/internal/modcmd/init.go
+++ b/libgo/go/cmd/go/internal/modcmd/init.go
@@ -9,6 +9,7 @@
 import (
 	"cmd/go/internal/base"
 	"cmd/go/internal/modload"
+	"cmd/go/internal/work"
 	"os"
 	"strings"
 )
@@ -27,6 +28,10 @@
 	Run: runInit,
 }
 
+func init() {
+	work.AddModCommonFlags(cmdInit)
+}
+
 func runInit(cmd *base.Command, args []string) {
 	modload.CmdModInit = true
 	if len(args) > 1 {
@@ -38,7 +43,8 @@
 	if os.Getenv("GO111MODULE") == "off" {
 		base.Fatalf("go mod init: modules disabled by GO111MODULE=off; see 'go help modules'")
 	}
-	if _, err := os.Stat("go.mod"); err == nil {
+	modFilePath := modload.ModFilePath()
+	if _, err := os.Stat(modFilePath); err == nil {
 		base.Fatalf("go mod init: go.mod already exists")
 	}
 	if strings.Contains(modload.CmdModModule, "@") {
diff --git a/libgo/go/cmd/go/internal/modcmd/mod.go b/libgo/go/cmd/go/internal/modcmd/mod.go
index f150cc9..1750522 100644
--- a/libgo/go/cmd/go/internal/modcmd/mod.go
+++ b/libgo/go/cmd/go/internal/modcmd/mod.go
@@ -5,7 +5,10 @@
 // Package modcmd implements the ``go mod'' command.
 package modcmd
 
-import "cmd/go/internal/base"
+import (
+	"cmd/go/internal/base"
+	"cmd/go/internal/cfg"
+)
 
 var CmdMod = &base.Command{
 	UsageLine: "go mod",
@@ -29,3 +32,7 @@
 		cmdWhy,
 	},
 }
+
+func addModFlags(cmd *base.Command) {
+	cmd.Flag.StringVar(&cfg.ModFile, "modfile", "", "")
+}
diff --git a/libgo/go/cmd/go/internal/modcmd/tidy.go b/libgo/go/cmd/go/internal/modcmd/tidy.go
index 789e936..af2b04c 100644
--- a/libgo/go/cmd/go/internal/modcmd/tidy.go
+++ b/libgo/go/cmd/go/internal/modcmd/tidy.go
@@ -7,14 +7,13 @@
 package modcmd
 
 import (
-	"fmt"
-	"os"
-
 	"cmd/go/internal/base"
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/modfetch"
 	"cmd/go/internal/modload"
-	"cmd/go/internal/module"
+	"cmd/go/internal/work"
+
+	"golang.org/x/mod/module"
 )
 
 var cmdTidy = &base.Command{
@@ -35,6 +34,7 @@
 func init() {
 	cmdTidy.Run = runTidy // break init cycle
 	cmdTidy.Flag.BoolVar(&cfg.BuildV, "v", false, "")
+	work.AddModCommonFlags(cmdTidy)
 }
 
 func runTidy(cmd *base.Command, args []string) {
@@ -42,28 +42,8 @@
 		base.Fatalf("go mod tidy: no arguments allowed")
 	}
 
-	// LoadALL adds missing modules.
-	// Remove unused modules.
-	used := make(map[module.Version]bool)
-	for _, pkg := range modload.LoadALL() {
-		used[modload.PackageModule(pkg)] = true
-	}
-	used[modload.Target] = true // note: LoadALL initializes Target
-
-	inGoMod := make(map[string]bool)
-	for _, r := range modload.ModFile().Require {
-		inGoMod[r.Mod.Path] = true
-	}
-
-	var keep []module.Version
-	for _, m := range modload.BuildList() {
-		if used[m] {
-			keep = append(keep, m)
-		} else if cfg.BuildV && inGoMod[m.Path] {
-			fmt.Fprintf(os.Stderr, "unused %s\n", m.Path)
-		}
-	}
-	modload.SetBuildList(keep)
+	modload.LoadALL()
+	modload.TidyBuildList()
 	modTidyGoSum() // updates memory copy; WriteGoMod on next line flushes it out
 	modload.WriteGoMod()
 }
diff --git a/libgo/go/cmd/go/internal/modcmd/vendor.go b/libgo/go/cmd/go/internal/modcmd/vendor.go
index 75513f1..0c00d12 100644
--- a/libgo/go/cmd/go/internal/modcmd/vendor.go
+++ b/libgo/go/cmd/go/internal/modcmd/vendor.go
@@ -18,7 +18,10 @@
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/imports"
 	"cmd/go/internal/modload"
-	"cmd/go/internal/module"
+	"cmd/go/internal/work"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 var cmdVendor = &base.Command{
@@ -37,6 +40,7 @@
 
 func init() {
 	cmdVendor.Flag.BoolVar(&cfg.BuildV, "v", false, "")
+	work.AddModCommonFlags(cmdVendor)
 }
 
 func runVendor(cmd *base.Command, args []string) {
@@ -59,19 +63,31 @@
 		modpkgs[m] = append(modpkgs[m], pkg)
 	}
 
+	includeAllReplacements := false
+	isExplicit := map[module.Version]bool{}
+	if gv := modload.ModFile().Go; gv != nil && semver.Compare("v"+gv.Version, "v1.14") >= 0 {
+		// If the Go version is at least 1.14, annotate all explicit 'require' and
+		// 'replace' targets found in the go.mod file so that we can perform a
+		// stronger consistency check when -mod=vendor is set.
+		for _, r := range modload.ModFile().Require {
+			isExplicit[r.Mod] = true
+		}
+		includeAllReplacements = true
+	}
+
 	var buf bytes.Buffer
 	for _, m := range modload.BuildList()[1:] {
-		if pkgs := modpkgs[m]; len(pkgs) > 0 {
-			repl := ""
-			if r := modload.Replacement(m); r.Path != "" {
-				repl = " => " + r.Path
-				if r.Version != "" {
-					repl += " " + r.Version
-				}
-			}
-			fmt.Fprintf(&buf, "# %s %s%s\n", m.Path, m.Version, repl)
+		if pkgs := modpkgs[m]; len(pkgs) > 0 || isExplicit[m] {
+			line := moduleLine(m, modload.Replacement(m))
+			buf.WriteString(line)
 			if cfg.BuildV {
-				fmt.Fprintf(os.Stderr, "# %s %s%s\n", m.Path, m.Version, repl)
+				os.Stderr.WriteString(line)
+			}
+			if isExplicit[m] {
+				buf.WriteString("## explicit\n")
+				if cfg.BuildV {
+					os.Stderr.WriteString("## explicit\n")
+				}
 			}
 			sort.Strings(pkgs)
 			for _, pkg := range pkgs {
@@ -83,6 +99,26 @@
 			}
 		}
 	}
+
+	if includeAllReplacements {
+		// Record unused and wildcard replacements at the end of the modules.txt file:
+		// without access to the complete build list, the consumer of the vendor
+		// directory can't otherwise determine that those replacements had no effect.
+		for _, r := range modload.ModFile().Replace {
+			if len(modpkgs[r.Old]) > 0 {
+				// We we already recorded this replacement in the entry for the replaced
+				// module with the packages it provides.
+				continue
+			}
+
+			line := moduleLine(r.Old, r.New)
+			buf.WriteString(line)
+			if cfg.BuildV {
+				os.Stderr.WriteString(line)
+			}
+		}
+	}
+
 	if buf.Len() == 0 {
 		fmt.Fprintf(os.Stderr, "go: no dependencies to vendor\n")
 		return
@@ -92,6 +128,26 @@
 	}
 }
 
+func moduleLine(m, r module.Version) string {
+	b := new(strings.Builder)
+	b.WriteString("# ")
+	b.WriteString(m.Path)
+	if m.Version != "" {
+		b.WriteString(" ")
+		b.WriteString(m.Version)
+	}
+	if r.Path != "" {
+		b.WriteString(" => ")
+		b.WriteString(r.Path)
+		if r.Version != "" {
+			b.WriteString(" ")
+			b.WriteString(r.Version)
+		}
+	}
+	b.WriteString("\n")
+	return b.String()
+}
+
 func vendorPkg(vdir, pkg string) {
 	realPath := modload.ImportMap(pkg)
 	if realPath != pkg && modload.ImportMap(realPath) != "" {
diff --git a/libgo/go/cmd/go/internal/modcmd/verify.go b/libgo/go/cmd/go/internal/modcmd/verify.go
index 81fc44d..831e5cf 100644
--- a/libgo/go/cmd/go/internal/modcmd/verify.go
+++ b/libgo/go/cmd/go/internal/modcmd/verify.go
@@ -6,16 +6,18 @@
 
 import (
 	"bytes"
-	"cmd/go/internal/cfg"
 	"fmt"
 	"io/ioutil"
 	"os"
 
 	"cmd/go/internal/base"
-	"cmd/go/internal/dirhash"
+	"cmd/go/internal/cfg"
 	"cmd/go/internal/modfetch"
 	"cmd/go/internal/modload"
-	"cmd/go/internal/module"
+	"cmd/go/internal/work"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/sumdb/dirhash"
 )
 
 var cmdVerify = &base.Command{
@@ -32,13 +34,17 @@
 	Run: runVerify,
 }
 
+func init() {
+	work.AddModCommonFlags(cmdVerify)
+}
+
 func runVerify(cmd *base.Command, args []string) {
 	if len(args) != 0 {
 		// NOTE(rsc): Could take a module pattern.
 		base.Fatalf("go mod verify: verify takes no arguments")
 	}
 	// Checks go mod expected behavior
-	if !modload.Enabled() {
+	if !modload.Enabled() || !modload.HasModRoot() {
 		if cfg.Getenv("GO111MODULE") == "off" {
 			base.Fatalf("go: modules disabled by GO111MODULE=off; see 'go help modules'")
 		} else {
diff --git a/libgo/go/cmd/go/internal/modcmd/why.go b/libgo/go/cmd/go/internal/modcmd/why.go
index 03e0a03..40d2385 100644
--- a/libgo/go/cmd/go/internal/modcmd/why.go
+++ b/libgo/go/cmd/go/internal/modcmd/why.go
@@ -5,11 +5,14 @@
 package modcmd
 
 import (
-	"cmd/go/internal/base"
-	"cmd/go/internal/modload"
-	"cmd/go/internal/module"
 	"fmt"
 	"strings"
+
+	"cmd/go/internal/base"
+	"cmd/go/internal/modload"
+	"cmd/go/internal/work"
+
+	"golang.org/x/mod/module"
 )
 
 var cmdWhy = &base.Command{
@@ -54,6 +57,7 @@
 
 func init() {
 	cmdWhy.Run = runWhy // break init cycle
+	work.AddModCommonFlags(cmdWhy)
 }
 
 func runWhy(cmd *base.Command, args []string) {
diff --git a/libgo/go/cmd/go/internal/modconv/convert.go b/libgo/go/cmd/go/internal/modconv/convert.go
index 558664a..f465a9f 100644
--- a/libgo/go/cmd/go/internal/modconv/convert.go
+++ b/libgo/go/cmd/go/internal/modconv/convert.go
@@ -13,10 +13,11 @@
 
 	"cmd/go/internal/base"
 	"cmd/go/internal/modfetch"
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
 	"cmd/go/internal/par"
-	"cmd/go/internal/semver"
+
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 // ConvertLegacyConfig converts legacy config to modfile.
diff --git a/libgo/go/cmd/go/internal/modconv/convert_test.go b/libgo/go/cmd/go/internal/modconv/convert_test.go
index 8ff229b..a2a2601 100644
--- a/libgo/go/cmd/go/internal/modconv/convert_test.go
+++ b/libgo/go/cmd/go/internal/modconv/convert_test.go
@@ -19,8 +19,9 @@
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/modfetch"
 	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
+
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
 )
 
 func TestMain(m *testing.M) {
diff --git a/libgo/go/cmd/go/internal/modconv/dep.go b/libgo/go/cmd/go/internal/modconv/dep.go
index ccd1fc7..2e673c3 100644
--- a/libgo/go/cmd/go/internal/modconv/dep.go
+++ b/libgo/go/cmd/go/internal/modconv/dep.go
@@ -12,9 +12,9 @@
 	"strconv"
 	"strings"
 
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
-	"cmd/go/internal/semver"
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 func ParseGopkgLock(file string, data []byte) (*modfile.File, error) {
diff --git a/libgo/go/cmd/go/internal/modconv/glide.go b/libgo/go/cmd/go/internal/modconv/glide.go
index 18ab578..d1de3f7 100644
--- a/libgo/go/cmd/go/internal/modconv/glide.go
+++ b/libgo/go/cmd/go/internal/modconv/glide.go
@@ -7,8 +7,8 @@
 import (
 	"strings"
 
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
 )
 
 func ParseGlideLock(file string, data []byte) (*modfile.File, error) {
diff --git a/libgo/go/cmd/go/internal/modconv/glock.go b/libgo/go/cmd/go/internal/modconv/glock.go
index 164a8e7..b8dc204 100644
--- a/libgo/go/cmd/go/internal/modconv/glock.go
+++ b/libgo/go/cmd/go/internal/modconv/glock.go
@@ -7,8 +7,8 @@
 import (
 	"strings"
 
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
 )
 
 func ParseGLOCKFILE(file string, data []byte) (*modfile.File, error) {
diff --git a/libgo/go/cmd/go/internal/modconv/godeps.go b/libgo/go/cmd/go/internal/modconv/godeps.go
index 6398dbe..09c0fa3 100644
--- a/libgo/go/cmd/go/internal/modconv/godeps.go
+++ b/libgo/go/cmd/go/internal/modconv/godeps.go
@@ -7,8 +7,8 @@
 import (
 	"encoding/json"
 
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
 )
 
 func ParseGodepsJSON(file string, data []byte) (*modfile.File, error) {
diff --git a/libgo/go/cmd/go/internal/modconv/modconv.go b/libgo/go/cmd/go/internal/modconv/modconv.go
index a586733..dc06072 100644
--- a/libgo/go/cmd/go/internal/modconv/modconv.go
+++ b/libgo/go/cmd/go/internal/modconv/modconv.go
@@ -4,7 +4,7 @@
 
 package modconv
 
-import "cmd/go/internal/modfile"
+import "golang.org/x/mod/modfile"
 
 var Converters = map[string]func(string, []byte) (*modfile.File, error){
 	"GLOCKFILE":          ParseGLOCKFILE,
diff --git a/libgo/go/cmd/go/internal/modconv/tsv.go b/libgo/go/cmd/go/internal/modconv/tsv.go
index 106cdde..4649579 100644
--- a/libgo/go/cmd/go/internal/modconv/tsv.go
+++ b/libgo/go/cmd/go/internal/modconv/tsv.go
@@ -7,8 +7,8 @@
 import (
 	"strings"
 
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
 )
 
 func ParseDependenciesTSV(file string, data []byte) (*modfile.File, error) {
diff --git a/libgo/go/cmd/go/internal/modconv/vconf.go b/libgo/go/cmd/go/internal/modconv/vconf.go
index f62eba7..9bad2ba 100644
--- a/libgo/go/cmd/go/internal/modconv/vconf.go
+++ b/libgo/go/cmd/go/internal/modconv/vconf.go
@@ -7,8 +7,8 @@
 import (
 	"strings"
 
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
 )
 
 func ParseVendorConf(file string, data []byte) (*modfile.File, error) {
diff --git a/libgo/go/cmd/go/internal/modconv/vjson.go b/libgo/go/cmd/go/internal/modconv/vjson.go
index eec86b7..1bd025c 100644
--- a/libgo/go/cmd/go/internal/modconv/vjson.go
+++ b/libgo/go/cmd/go/internal/modconv/vjson.go
@@ -7,8 +7,8 @@
 import (
 	"encoding/json"
 
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
 )
 
 func ParseVendorJSON(file string, data []byte) (*modfile.File, error) {
diff --git a/libgo/go/cmd/go/internal/modconv/vmanifest.go b/libgo/go/cmd/go/internal/modconv/vmanifest.go
index c0ef2a9..bcf0008 100644
--- a/libgo/go/cmd/go/internal/modconv/vmanifest.go
+++ b/libgo/go/cmd/go/internal/modconv/vmanifest.go
@@ -7,8 +7,8 @@
 import (
 	"encoding/json"
 
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
 )
 
 func ParseVendorManifest(file string, data []byte) (*modfile.File, error) {
diff --git a/libgo/go/cmd/go/internal/modconv/vyml.go b/libgo/go/cmd/go/internal/modconv/vyml.go
index 8a06519..cfa4194 100644
--- a/libgo/go/cmd/go/internal/modconv/vyml.go
+++ b/libgo/go/cmd/go/internal/modconv/vyml.go
@@ -7,8 +7,8 @@
 import (
 	"strings"
 
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
 )
 
 func ParseVendorYML(file string, data []byte) (*modfile.File, error) {
diff --git a/libgo/go/cmd/go/internal/modfetch/bootstrap.go b/libgo/go/cmd/go/internal/modfetch/bootstrap.go
index 8f31589..e4020b0 100644
--- a/libgo/go/cmd/go/internal/modfetch/bootstrap.go
+++ b/libgo/go/cmd/go/internal/modfetch/bootstrap.go
@@ -6,7 +6,7 @@
 
 package modfetch
 
-import "cmd/go/internal/module"
+import "golang.org/x/mod/module"
 
 func useSumDB(mod module.Version) bool {
 	return false
diff --git a/libgo/go/cmd/go/internal/modfetch/cache.go b/libgo/go/cmd/go/internal/modfetch/cache.go
index c006280..104fce8 100644
--- a/libgo/go/cmd/go/internal/modfetch/cache.go
+++ b/libgo/go/cmd/go/internal/modfetch/cache.go
@@ -13,26 +13,28 @@
 	"os"
 	"path/filepath"
 	"strings"
+	"time"
 
 	"cmd/go/internal/base"
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/lockedfile"
 	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/module"
 	"cmd/go/internal/par"
 	"cmd/go/internal/renameio"
-	"cmd/go/internal/semver"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
-var QuietLookup bool // do not print about lookups
-
 var PkgMod string // $GOPATH/pkg/mod; set by package modload
 
+const logFindingDelay = 1 * time.Second
+
 func cacheDir(path string) (string, error) {
 	if PkgMod == "" {
 		return "", fmt.Errorf("internal error: modfetch.PkgMod not set")
 	}
-	enc, err := module.EncodePath(path)
+	enc, err := module.EscapePath(path)
 	if err != nil {
 		return "", err
 	}
@@ -50,7 +52,7 @@
 	if module.CanonicalVersion(m.Version) != m.Version {
 		return "", fmt.Errorf("non-canonical module version %q", m.Version)
 	}
-	encVer, err := module.EncodeVersion(m.Version)
+	encVer, err := module.EscapeVersion(m.Version)
 	if err != nil {
 		return "", err
 	}
@@ -63,7 +65,7 @@
 	if PkgMod == "" {
 		return "", fmt.Errorf("internal error: modfetch.PkgMod not set")
 	}
-	enc, err := module.EncodePath(m.Path)
+	enc, err := module.EscapePath(m.Path)
 	if err != nil {
 		return "", err
 	}
@@ -73,7 +75,7 @@
 	if module.CanonicalVersion(m.Version) != m.Version {
 		return "", fmt.Errorf("non-canonical module version %q", m.Version)
 	}
-	encVer, err := module.EncodeVersion(m.Version)
+	encVer, err := module.EscapeVersion(m.Version)
 	if err != nil {
 		return "", err
 	}
@@ -93,22 +95,21 @@
 	return lockedfile.MutexAt(path).Lock()
 }
 
-// SideLock locks a file within the module cache that that guards edits to files
-// outside the cache, such as go.sum and go.mod files in the user's working
-// directory. It returns a function that must be called to unlock the file.
-func SideLock() (unlock func()) {
+// SideLock locks a file within the module cache that that previously guarded
+// edits to files outside the cache, such as go.sum and go.mod files in the
+// user's working directory.
+// If err is nil, the caller MUST eventually call the unlock function.
+func SideLock() (unlock func(), err error) {
 	if PkgMod == "" {
 		base.Fatalf("go: internal error: modfetch.PkgMod not set")
 	}
+
 	path := filepath.Join(PkgMod, "cache", "lock")
 	if err := os.MkdirAll(filepath.Dir(path), 0777); err != nil {
-		base.Fatalf("go: failed to create cache directory %s: %v", filepath.Dir(path), err)
+		return nil, fmt.Errorf("failed to create cache directory: %w", err)
 	}
-	unlock, err := lockedfile.MutexAt(path).Lock()
-	if err != nil {
-		base.Fatalf("go: failed to lock file at %v", path)
-	}
-	return unlock
+
+	return lockedfile.MutexAt(path).Lock()
 }
 
 // A cachingRepo is a cache around an underlying Repo,
@@ -139,6 +140,11 @@
 		err  error
 	}
 	c := r.cache.Do("versions:"+prefix, func() interface{} {
+		logTimer := time.AfterFunc(logFindingDelay, func() {
+			fmt.Fprintf(os.Stderr, "go: finding versions for %s\n", r.path)
+		})
+		defer logTimer.Stop()
+
 		list, err := r.r.Versions(prefix)
 		return cached{list, err}
 	}).(cached)
@@ -161,9 +167,11 @@
 			return cachedInfo{info, nil}
 		}
 
-		if !QuietLookup {
+		logTimer := time.AfterFunc(logFindingDelay, func() {
 			fmt.Fprintf(os.Stderr, "go: finding %s %s\n", r.path, rev)
-		}
+		})
+		defer logTimer.Stop()
+
 		info, err = r.r.Stat(rev)
 		if err == nil {
 			// If we resolved, say, 1234abcde to v0.0.0-20180604122334-1234abcdef78,
@@ -191,9 +199,11 @@
 
 func (r *cachingRepo) Latest() (*RevInfo, error) {
 	c := r.cache.Do("latest:", func() interface{} {
-		if !QuietLookup {
+		logTimer := time.AfterFunc(logFindingDelay, func() {
 			fmt.Fprintf(os.Stderr, "go: finding %s latest\n", r.path)
-		}
+		})
+		defer logTimer.Stop()
+
 		info, err := r.r.Latest()
 
 		// Save info for likely future Stat call.
@@ -230,7 +240,9 @@
 
 		text, err = r.r.GoMod(version)
 		if err == nil {
-			checkGoMod(r.path, version, text)
+			if err := checkGoMod(r.path, version, text); err != nil {
+				return cached{text, err}
+			}
 			if err := writeDiskGoMod(file, text); err != nil {
 				fmt.Fprintf(os.Stderr, "go: writing go.mod cache: %v\n", err)
 			}
@@ -490,7 +502,9 @@
 	}
 
 	if err == nil {
-		checkGoMod(path, rev, data)
+		if err := checkGoMod(path, rev, data); err != nil {
+			return "", nil, err
+		}
 	}
 
 	return file, data, err
diff --git a/libgo/go/cmd/go/internal/modfetch/codehost/codehost.go b/libgo/go/cmd/go/internal/modfetch/codehost/codehost.go
index a4e50d6..5867288 100644
--- a/libgo/go/cmd/go/internal/modfetch/codehost/codehost.go
+++ b/libgo/go/cmd/go/internal/modfetch/codehost/codehost.go
@@ -73,11 +73,10 @@
 	// ReadZip downloads a zip file for the subdir subdirectory
 	// of the given revision to a new file in a given temporary directory.
 	// It should refuse to read more than maxSize bytes.
-	// It returns a ReadCloser for a streamed copy of the zip file,
-	// along with the actual subdirectory (possibly shorter than subdir)
-	// contained in the zip file. All files in the zip file are expected to be
+	// It returns a ReadCloser for a streamed copy of the zip file.
+	// All files in the zip file are expected to be
 	// nested in a single top-level directory, whose name is not specified.
-	ReadZip(rev, subdir string, maxSize int64) (zip io.ReadCloser, actualSubdir string, err error)
+	ReadZip(rev, subdir string, maxSize int64) (zip io.ReadCloser, err error)
 
 	// RecentTag returns the most recent tag on rev or one of its predecessors
 	// with the given prefix and major version.
diff --git a/libgo/go/cmd/go/internal/modfetch/codehost/git.go b/libgo/go/cmd/go/internal/modfetch/codehost/git.go
index d382e8a..e329cbc 100644
--- a/libgo/go/cmd/go/internal/modfetch/codehost/git.go
+++ b/libgo/go/cmd/go/internal/modfetch/codehost/git.go
@@ -6,9 +6,11 @@
 
 import (
 	"bytes"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
+	"net/url"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -20,7 +22,9 @@
 
 	"cmd/go/internal/lockedfile"
 	"cmd/go/internal/par"
-	"cmd/go/internal/semver"
+	"cmd/go/internal/web"
+
+	"golang.org/x/mod/semver"
 )
 
 // GitRepo returns the code repository at the given Git remote reference.
@@ -34,6 +38,15 @@
 	return newGitRepoCached(remote, true)
 }
 
+// A notExistError wraps another error to retain its original text
+// but makes it opaquely equivalent to os.ErrNotExist.
+type notExistError struct {
+	err error
+}
+
+func (e notExistError) Error() string   { return e.err.Error() }
+func (notExistError) Is(err error) bool { return err == os.ErrNotExist }
+
 const gitWorkDirType = "git3"
 
 var gitRepoCache par.Cache
@@ -85,8 +98,9 @@
 				os.RemoveAll(r.dir)
 				return nil, err
 			}
-			r.remote = "origin"
 		}
+		r.remoteURL = r.remote
+		r.remote = "origin"
 	} else {
 		// Local path.
 		// Disallow colon (not in ://) because sometimes
@@ -113,9 +127,9 @@
 }
 
 type gitRepo struct {
-	remote string
-	local  bool
-	dir    string
+	remote, remoteURL string
+	local             bool
+	dir               string
 
 	mu lockedfile.Mutex // protects fetchLevel and git repo state
 
@@ -166,14 +180,25 @@
 	// The git protocol sends all known refs and ls-remote filters them on the client side,
 	// so we might as well record both heads and tags in one shot.
 	// Most of the time we only care about tags but sometimes we care about heads too.
-	out, err := Run(r.dir, "git", "ls-remote", "-q", r.remote)
-	if err != nil {
-		if rerr, ok := err.(*RunError); ok {
+	out, gitErr := Run(r.dir, "git", "ls-remote", "-q", r.remote)
+	if gitErr != nil {
+		if rerr, ok := gitErr.(*RunError); ok {
 			if bytes.Contains(rerr.Stderr, []byte("fatal: could not read Username")) {
 				rerr.HelpText = "Confirm the import path was entered correctly.\nIf this is a private repository, see https://golang.org/doc/faq#git_https for additional information."
 			}
 		}
-		r.refsErr = err
+
+		// If the remote URL doesn't exist at all, ideally we should treat the whole
+		// repository as nonexistent by wrapping the error in a notExistError.
+		// For HTTP and HTTPS, that's easy to detect: we'll try to fetch the URL
+		// ourselves and see what code it serves.
+		if u, err := url.Parse(r.remoteURL); err == nil && (u.Scheme == "http" || u.Scheme == "https") {
+			if _, err := web.GetBytes(u); errors.Is(err, os.ErrNotExist) {
+				gitErr = notExistError{gitErr}
+			}
+		}
+
+		r.refsErr = gitErr
 		return
 	}
 
@@ -241,13 +266,6 @@
 	return "", false
 }
 
-func unshallow(gitDir string) []string {
-	if _, err := os.Stat(filepath.Join(gitDir, "shallow")); err == nil {
-		return []string{"--unshallow"}
-	}
-	return []string{}
-}
-
 // minHashDigits is the minimum number of digits to require
 // before accepting a hex digit sequence as potentially identifying
 // a specific commit in a git repo. (Of course, users can always
@@ -397,29 +415,27 @@
 // fetchRefsLocked requires that r.mu remain locked for the duration of the call.
 func (r *gitRepo) fetchRefsLocked() error {
 	if r.fetchLevel < fetchAll {
-		if err := r.fetchUnshallow("refs/heads/*:refs/heads/*", "refs/tags/*:refs/tags/*"); err != nil {
+		// NOTE: To work around a bug affecting Git clients up to at least 2.23.0
+		// (2019-08-16), we must first expand the set of local refs, and only then
+		// unshallow the repository as a separate fetch operation. (See
+		// golang.org/issue/34266 and
+		// https://github.com/git/git/blob/4c86140027f4a0d2caaa3ab4bd8bfc5ce3c11c8a/transport.c#L1303-L1309.)
+
+		if _, err := Run(r.dir, "git", "fetch", "-f", r.remote, "refs/heads/*:refs/heads/*", "refs/tags/*:refs/tags/*"); err != nil {
 			return err
 		}
+
+		if _, err := os.Stat(filepath.Join(r.dir, "shallow")); err == nil {
+			if _, err := Run(r.dir, "git", "fetch", "--unshallow", "-f", r.remote); err != nil {
+				return err
+			}
+		}
+
 		r.fetchLevel = fetchAll
 	}
 	return nil
 }
 
-func (r *gitRepo) fetchUnshallow(refSpecs ...string) error {
-	// To work around a protocol version 2 bug that breaks --unshallow,
-	// add -c protocol.version=0.
-	// TODO(rsc): The bug is believed to be server-side, meaning only
-	// on Google's Git servers. Once the servers are fixed, drop the
-	// protocol.version=0. See Google-internal bug b/110495752.
-	var protoFlag []string
-	unshallowFlag := unshallow(r.dir)
-	if len(unshallowFlag) > 0 {
-		protoFlag = []string{"-c", "protocol.version=0"}
-	}
-	_, err := Run(r.dir, "git", protoFlag, "fetch", unshallowFlag, "-f", r.remote, refSpecs)
-	return err
-}
-
 // statLocal returns a RevInfo describing rev in the local git repository.
 // It uses version as info.Version.
 func (r *gitRepo) statLocal(version, rev string) (*RevInfo, error) {
@@ -539,39 +555,10 @@
 	}
 	defer unlock()
 
-	var refs []string
-	var protoFlag []string
-	var unshallowFlag []string
-	for _, tag := range redo {
-		refs = append(refs, "refs/tags/"+tag+":refs/tags/"+tag)
-	}
-	if len(refs) > 1 {
-		unshallowFlag = unshallow(r.dir)
-		if len(unshallowFlag) > 0 {
-			// To work around a protocol version 2 bug that breaks --unshallow,
-			// add -c protocol.version=0.
-			// TODO(rsc): The bug is believed to be server-side, meaning only
-			// on Google's Git servers. Once the servers are fixed, drop the
-			// protocol.version=0. See Google-internal bug b/110495752.
-			protoFlag = []string{"-c", "protocol.version=0"}
-		}
-	}
-	if _, err := Run(r.dir, "git", protoFlag, "fetch", unshallowFlag, "-f", r.remote, refs); err != nil {
+	if err := r.fetchRefsLocked(); err != nil {
 		return nil, err
 	}
 
-	// TODO(bcmills): after the 1.11 freeze, replace the block above with:
-	//	if r.fetchLevel <= fetchSome {
-	//		r.fetchLevel = fetchSome
-	//		var refs []string
-	//		for _, tag := range redo {
-	//			refs = append(refs, "refs/tags/"+tag+":refs/tags/"+tag)
-	//		}
-	//		if _, err := Run(r.dir, "git", "fetch", "--update-shallow", "-f", r.remote, refs); err != nil {
-	//			return nil, err
-	//		}
-	//	}
-
 	if _, err := r.readFileRevs(redo, file, files); err != nil {
 		return nil, err
 	}
@@ -809,7 +796,7 @@
 	return false, err
 }
 
-func (r *gitRepo) ReadZip(rev, subdir string, maxSize int64) (zip io.ReadCloser, actualSubdir string, err error) {
+func (r *gitRepo) ReadZip(rev, subdir string, maxSize int64) (zip io.ReadCloser, err error) {
 	// TODO: Use maxSize or drop it.
 	args := []string{}
 	if subdir != "" {
@@ -817,17 +804,17 @@
 	}
 	info, err := r.Stat(rev) // download rev into local git repo
 	if err != nil {
-		return nil, "", err
+		return nil, err
 	}
 
 	unlock, err := r.mu.Lock()
 	if err != nil {
-		return nil, "", err
+		return nil, err
 	}
 	defer unlock()
 
 	if err := ensureGitAttributes(r.dir); err != nil {
-		return nil, "", err
+		return nil, err
 	}
 
 	// Incredibly, git produces different archives depending on whether
@@ -838,12 +825,12 @@
 	archive, err := Run(r.dir, "git", "-c", "core.autocrlf=input", "-c", "core.eol=lf", "archive", "--format=zip", "--prefix=prefix/", info.Name, args)
 	if err != nil {
 		if bytes.Contains(err.(*RunError).Stderr, []byte("did not match any files")) {
-			return nil, "", os.ErrNotExist
+			return nil, os.ErrNotExist
 		}
-		return nil, "", err
+		return nil, err
 	}
 
-	return ioutil.NopCloser(bytes.NewReader(archive)), "", nil
+	return ioutil.NopCloser(bytes.NewReader(archive)), nil
 }
 
 // ensureGitAttributes makes sure export-subst and export-ignore features are
diff --git a/libgo/go/cmd/go/internal/modfetch/codehost/git_test.go b/libgo/go/cmd/go/internal/modfetch/codehost/git_test.go
index da9e705..cc32a1e 100644
--- a/libgo/go/cmd/go/internal/modfetch/codehost/git_test.go
+++ b/libgo/go/cmd/go/internal/modfetch/codehost/git_test.go
@@ -78,7 +78,16 @@
 
 func testRepo(remote string) (Repo, error) {
 	if remote == "localGitRepo" {
-		return LocalGitRepo(filepath.ToSlash(localGitRepo))
+		// Convert absolute path to file URL. LocalGitRepo will not accept
+		// Windows absolute paths because they look like a host:path remote.
+		// TODO(golang.org/issue/32456): use url.FromFilePath when implemented.
+		var url string
+		if strings.HasPrefix(localGitRepo, "/") {
+			url = "file://" + localGitRepo
+		} else {
+			url = "file:///" + filepath.ToSlash(localGitRepo)
+		}
+		return LocalGitRepo(url)
 	}
 	kind := "git"
 	for _, k := range []string{"hg"} {
@@ -246,12 +255,11 @@
 }
 
 var readZipTests = []struct {
-	repo         string
-	rev          string
-	subdir       string
-	actualSubdir string
-	err          string
-	files        map[string]uint64
+	repo   string
+	rev    string
+	subdir string
+	err    string
+	files  map[string]uint64
 }{
 	{
 		repo:   gitrepo1,
@@ -408,7 +416,7 @@
 			if err != nil {
 				t.Fatal(err)
 			}
-			rc, actualSubdir, err := r.ReadZip(tt.rev, tt.subdir, 100000)
+			rc, err := r.ReadZip(tt.rev, tt.subdir, 100000)
 			if err != nil {
 				if tt.err == "" {
 					t.Fatalf("ReadZip: unexpected error %v", err)
@@ -425,9 +433,6 @@
 			if tt.err != "" {
 				t.Fatalf("ReadZip: no error, wanted %v", tt.err)
 			}
-			if actualSubdir != tt.actualSubdir {
-				t.Fatalf("ReadZip: actualSubdir = %q, want %q", actualSubdir, tt.actualSubdir)
-			}
 			zipdata, err := ioutil.ReadAll(rc)
 			if err != nil {
 				t.Fatal(err)
diff --git a/libgo/go/cmd/go/internal/modfetch/codehost/shell.go b/libgo/go/cmd/go/internal/modfetch/codehost/shell.go
index 7b813c3..835bc53 100644
--- a/libgo/go/cmd/go/internal/modfetch/codehost/shell.go
+++ b/libgo/go/cmd/go/internal/modfetch/codehost/shell.go
@@ -109,7 +109,7 @@
 			if subdir == "-" {
 				subdir = ""
 			}
-			rc, _, err := repo.ReadZip(f[1], subdir, 10<<20)
+			rc, err := repo.ReadZip(f[1], subdir, 10<<20)
 			if err != nil {
 				fmt.Fprintf(os.Stderr, "?%s\n", err)
 				continue
diff --git a/libgo/go/cmd/go/internal/modfetch/codehost/svn.go b/libgo/go/cmd/go/internal/modfetch/codehost/svn.go
new file mode 100644
index 0000000..6ec9e59
--- /dev/null
+++ b/libgo/go/cmd/go/internal/modfetch/codehost/svn.go
@@ -0,0 +1,154 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package codehost
+
+import (
+	"archive/zip"
+	"encoding/xml"
+	"fmt"
+	"io"
+	"os"
+	"path"
+	"path/filepath"
+	"time"
+)
+
+func svnParseStat(rev, out string) (*RevInfo, error) {
+	var log struct {
+		Logentry struct {
+			Revision int64  `xml:"revision,attr"`
+			Date     string `xml:"date"`
+		} `xml:"logentry"`
+	}
+	if err := xml.Unmarshal([]byte(out), &log); err != nil {
+		return nil, vcsErrorf("unexpected response from svn log --xml: %v\n%s", err, out)
+	}
+
+	t, err := time.Parse(time.RFC3339, log.Logentry.Date)
+	if err != nil {
+		return nil, vcsErrorf("unexpected response from svn log --xml: %v\n%s", err, out)
+	}
+
+	info := &RevInfo{
+		Name:    fmt.Sprintf("%d", log.Logentry.Revision),
+		Short:   fmt.Sprintf("%012d", log.Logentry.Revision),
+		Time:    t.UTC(),
+		Version: rev,
+	}
+	return info, nil
+}
+
+func svnReadZip(dst io.Writer, workDir, rev, subdir, remote string) (err error) {
+	// The subversion CLI doesn't provide a command to write the repository
+	// directly to an archive, so we need to export it to the local filesystem
+	// instead. Unfortunately, the local filesystem might apply arbitrary
+	// normalization to the filenames, so we need to obtain those directly.
+	//
+	// 'svn export' prints the filenames as they are written, but from reading the
+	// svn source code (as of revision 1868933), those filenames are encoded using
+	// the system locale rather than preserved byte-for-byte from the origin. For
+	// our purposes, that won't do, but we don't want to go mucking around with
+	// the user's locale settings either — that could impact error messages, and
+	// we don't know what locales the user has available or what LC_* variables
+	// their platform supports.
+	//
+	// Instead, we'll do a two-pass export: first we'll run 'svn list' to get the
+	// canonical filenames, then we'll 'svn export' and look for those filenames
+	// in the local filesystem. (If there is an encoding problem at that point, we
+	// would probably reject the resulting module anyway.)
+
+	remotePath := remote
+	if subdir != "" {
+		remotePath += "/" + subdir
+	}
+
+	out, err := Run(workDir, []string{
+		"svn", "list",
+		"--non-interactive",
+		"--xml",
+		"--incremental",
+		"--recursive",
+		"--revision", rev,
+		"--", remotePath,
+	})
+	if err != nil {
+		return err
+	}
+
+	type listEntry struct {
+		Kind string `xml:"kind,attr"`
+		Name string `xml:"name"`
+		Size int64  `xml:"size"`
+	}
+	var list struct {
+		Entries []listEntry `xml:"entry"`
+	}
+	if err := xml.Unmarshal(out, &list); err != nil {
+		return vcsErrorf("unexpected response from svn list --xml: %v\n%s", err, out)
+	}
+
+	exportDir := filepath.Join(workDir, "export")
+	// Remove any existing contents from a previous (failed) run.
+	if err := os.RemoveAll(exportDir); err != nil {
+		return err
+	}
+	defer os.RemoveAll(exportDir) // best-effort
+
+	_, err = Run(workDir, []string{
+		"svn", "export",
+		"--non-interactive",
+		"--quiet",
+
+		// Suppress any platform- or host-dependent transformations.
+		"--native-eol", "LF",
+		"--ignore-externals",
+		"--ignore-keywords",
+
+		"--revision", rev,
+		"--", remotePath,
+		exportDir,
+	})
+	if err != nil {
+		return err
+	}
+
+	// Scrape the exported files out of the filesystem and encode them in the zipfile.
+
+	// “All files in the zip file are expected to be
+	// nested in a single top-level directory, whose name is not specified.”
+	// We'll (arbitrarily) choose the base of the remote path.
+	basePath := path.Join(path.Base(remote), subdir)
+
+	zw := zip.NewWriter(dst)
+	for _, e := range list.Entries {
+		if e.Kind != "file" {
+			continue
+		}
+
+		zf, err := zw.Create(path.Join(basePath, e.Name))
+		if err != nil {
+			return err
+		}
+
+		f, err := os.Open(filepath.Join(exportDir, e.Name))
+		if err != nil {
+			if os.IsNotExist(err) {
+				return vcsErrorf("file reported by 'svn list', but not written by 'svn export': %s", e.Name)
+			}
+			return fmt.Errorf("error opening file created by 'svn export': %v", err)
+		}
+
+		n, err := io.Copy(zf, f)
+		f.Close()
+		if err != nil {
+			return err
+		}
+		if n != e.Size {
+			return vcsErrorf("file size differs between 'svn list' and 'svn export': file %s listed as %v bytes, but exported as %v bytes", e.Name, e.Size, n)
+		}
+	}
+
+	return zw.Close()
+}
diff --git a/libgo/go/cmd/go/internal/modfetch/codehost/vcs.go b/libgo/go/cmd/go/internal/modfetch/codehost/vcs.go
index 48238f1..7284557 100644
--- a/libgo/go/cmd/go/internal/modfetch/codehost/vcs.go
+++ b/libgo/go/cmd/go/internal/modfetch/codehost/vcs.go
@@ -5,7 +5,7 @@
 package codehost
 
 import (
-	"encoding/xml"
+	"errors"
 	"fmt"
 	"internal/lazyregexp"
 	"io"
@@ -122,19 +122,20 @@
 const vcsWorkDirType = "vcs1."
 
 type vcsCmd struct {
-	vcs           string                                            // vcs name "hg"
-	init          func(remote string) []string                      // cmd to init repo to track remote
-	tags          func(remote string) []string                      // cmd to list local tags
-	tagRE         *lazyregexp.Regexp                                // regexp to extract tag names from output of tags cmd
-	branches      func(remote string) []string                      // cmd to list local branches
-	branchRE      *lazyregexp.Regexp                                // regexp to extract branch names from output of tags cmd
-	badLocalRevRE *lazyregexp.Regexp                                // regexp of names that must not be served out of local cache without doing fetch first
-	statLocal     func(rev, remote string) []string                 // cmd to stat local rev
-	parseStat     func(rev, out string) (*RevInfo, error)           // cmd to parse output of statLocal
-	fetch         []string                                          // cmd to fetch everything from remote
-	latest        string                                            // name of latest commit on remote (tip, HEAD, etc)
-	readFile      func(rev, file, remote string) []string           // cmd to read rev's file
-	readZip       func(rev, subdir, remote, target string) []string // cmd to read rev's subdir as zip file
+	vcs           string                                                         // vcs name "hg"
+	init          func(remote string) []string                                   // cmd to init repo to track remote
+	tags          func(remote string) []string                                   // cmd to list local tags
+	tagRE         *lazyregexp.Regexp                                             // regexp to extract tag names from output of tags cmd
+	branches      func(remote string) []string                                   // cmd to list local branches
+	branchRE      *lazyregexp.Regexp                                             // regexp to extract branch names from output of tags cmd
+	badLocalRevRE *lazyregexp.Regexp                                             // regexp of names that must not be served out of local cache without doing fetch first
+	statLocal     func(rev, remote string) []string                              // cmd to stat local rev
+	parseStat     func(rev, out string) (*RevInfo, error)                        // cmd to parse output of statLocal
+	fetch         []string                                                       // cmd to fetch everything from remote
+	latest        string                                                         // name of latest commit on remote (tip, HEAD, etc)
+	readFile      func(rev, file, remote string) []string                        // cmd to read rev's file
+	readZip       func(rev, subdir, remote, target string) []string              // cmd to read rev's subdir as zip file
+	doReadZip     func(dst io.Writer, workDir, rev, subdir, remote string) error // arbitrary function to read rev's subdir as zip file
 }
 
 var re = lazyregexp.New
@@ -191,7 +192,7 @@
 		readFile: func(rev, file, remote string) []string {
 			return []string{"svn", "cat", "--", remote + "/" + file + "@" + rev}
 		},
-		// TODO: zip
+		doReadZip: svnReadZip,
 	},
 
 	"bzr": {
@@ -417,14 +418,14 @@
 	return false, vcsErrorf("DescendsFrom not implemented")
 }
 
-func (r *vcsRepo) ReadZip(rev, subdir string, maxSize int64) (zip io.ReadCloser, actualSubdir string, err error) {
-	if r.cmd.readZip == nil {
-		return nil, "", vcsErrorf("ReadZip not implemented for %s", r.cmd.vcs)
+func (r *vcsRepo) ReadZip(rev, subdir string, maxSize int64) (zip io.ReadCloser, err error) {
+	if r.cmd.readZip == nil && r.cmd.doReadZip == nil {
+		return nil, vcsErrorf("ReadZip not implemented for %s", r.cmd.vcs)
 	}
 
 	unlock, err := r.mu.Lock()
 	if err != nil {
-		return nil, "", err
+		return nil, err
 	}
 	defer unlock()
 
@@ -433,9 +434,19 @@
 	}
 	f, err := ioutil.TempFile("", "go-readzip-*.zip")
 	if err != nil {
-		return nil, "", err
+		return nil, err
 	}
-	if r.cmd.vcs == "fossil" {
+	if r.cmd.doReadZip != nil {
+		lw := &limitedWriter{
+			W:               f,
+			N:               maxSize,
+			ErrLimitReached: errors.New("ReadZip: encoded file exceeds allowed size"),
+		}
+		err = r.cmd.doReadZip(lw, r.dir, rev, subdir, r.remote)
+		if err == nil {
+			_, err = f.Seek(0, io.SeekStart)
+		}
+	} else if r.cmd.vcs == "fossil" {
 		// If you run
 		//	fossil zip -R .fossil --name prefix trunk /tmp/x.zip
 		// fossil fails with "unable to create directory /tmp" [sic].
@@ -454,9 +465,9 @@
 	if err != nil {
 		f.Close()
 		os.Remove(f.Name())
-		return nil, "", err
+		return nil, err
 	}
-	return &deleteCloser{f}, "", nil
+	return &deleteCloser{f}, nil
 }
 
 // deleteCloser is a file that gets deleted on Close.
@@ -502,31 +513,6 @@
 	return info, nil
 }
 
-func svnParseStat(rev, out string) (*RevInfo, error) {
-	var log struct {
-		Logentry struct {
-			Revision int64  `xml:"revision,attr"`
-			Date     string `xml:"date"`
-		} `xml:"logentry"`
-	}
-	if err := xml.Unmarshal([]byte(out), &log); err != nil {
-		return nil, vcsErrorf("unexpected response from svn log --xml: %v\n%s", err, out)
-	}
-
-	t, err := time.Parse(time.RFC3339, log.Logentry.Date)
-	if err != nil {
-		return nil, vcsErrorf("unexpected response from svn log --xml: %v\n%s", err, out)
-	}
-
-	info := &RevInfo{
-		Name:    fmt.Sprintf("%d", log.Logentry.Revision),
-		Short:   fmt.Sprintf("%012d", log.Logentry.Revision),
-		Time:    t.UTC(),
-		Version: rev,
-	}
-	return info, nil
-}
-
 func bzrParseStat(rev, out string) (*RevInfo, error) {
 	var revno int64
 	var tm time.Time
@@ -606,3 +592,25 @@
 	}
 	return nil, vcsErrorf("unexpected response from fossil info: %q", out)
 }
+
+type limitedWriter struct {
+	W               io.Writer
+	N               int64
+	ErrLimitReached error
+}
+
+func (l *limitedWriter) Write(p []byte) (n int, err error) {
+	if l.N > 0 {
+		max := len(p)
+		if l.N < int64(max) {
+			max = int(l.N)
+		}
+		n, err = l.W.Write(p[:max])
+		l.N -= int64(n)
+		if err != nil || n >= len(p) {
+			return n, err
+		}
+	}
+
+	return n, l.ErrLimitReached
+}
diff --git a/libgo/go/cmd/go/internal/modfetch/coderepo.go b/libgo/go/cmd/go/internal/modfetch/coderepo.go
index f15ce67..de757ec 100644
--- a/libgo/go/cmd/go/internal/modfetch/coderepo.go
+++ b/libgo/go/cmd/go/internal/modfetch/coderepo.go
@@ -6,19 +6,23 @@
 
 import (
 	"archive/zip"
+	"bytes"
 	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
 	"os"
 	"path"
+	"sort"
 	"strings"
 	"time"
 
 	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
-	"cmd/go/internal/semver"
+
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
+	modzip "golang.org/x/mod/zip"
 )
 
 // A codeRepo implements modfetch.Repo using an underlying codehost.Repo.
@@ -140,11 +144,13 @@
 	}
 	tags, err := r.code.Tags(p)
 	if err != nil {
-		return nil, err
+		return nil, &module.ModuleError{
+			Path: r.modPath,
+			Err:  err,
+		}
 	}
 
-	list := []string{}
-	var incompatible []string
+	var list, incompatible []string
 	for _, tag := range tags {
 		if !strings.HasPrefix(tag, p) {
 			continue
@@ -156,32 +162,114 @@
 		if v == "" || v != module.CanonicalVersion(v) || IsPseudoVersion(v) {
 			continue
 		}
-		if err := module.MatchPathMajor(v, r.pathMajor); err != nil {
+
+		if err := module.CheckPathMajor(v, r.pathMajor); err != nil {
 			if r.codeDir == "" && r.pathMajor == "" && semver.Major(v) > "v1" {
 				incompatible = append(incompatible, v)
 			}
 			continue
 		}
+
 		list = append(list, v)
 	}
+	SortVersions(list)
+	SortVersions(incompatible)
 
-	if len(incompatible) > 0 {
-		// Check for later versions that were created not following semantic import versioning,
-		// as indicated by the absence of a go.mod file. Those versions can be addressed
-		// by referring to them with a +incompatible suffix, as in v17.0.0+incompatible.
-		files, err := r.code.ReadFileRevs(incompatible, "go.mod", codehost.MaxGoMod)
+	return r.appendIncompatibleVersions(list, incompatible)
+}
+
+// appendIncompatibleVersions appends "+incompatible" versions to list if
+// appropriate, returning the final list.
+//
+// The incompatible list contains candidate versions without the '+incompatible'
+// prefix.
+//
+// Both list and incompatible must be sorted in semantic order.
+func (r *codeRepo) appendIncompatibleVersions(list, incompatible []string) ([]string, error) {
+	if len(incompatible) == 0 || r.pathMajor != "" {
+		// No +incompatible versions are possible, so no need to check them.
+		return list, nil
+	}
+
+	// We assume that if the latest release of any major version has a go.mod
+	// file, all subsequent major versions will also have go.mod files (and thus
+	// be ineligible for use as +incompatible versions).
+	// If we're wrong about a major version, users will still be able to 'go get'
+	// specific higher versions explicitly — they just won't affect 'latest' or
+	// appear in 'go list'.
+	//
+	// Conversely, we assume that if the latest release of any major version lacks
+	// a go.mod file, all versions also lack go.mod files. If we're wrong, we may
+	// include a +incompatible version that isn't really valid, but most
+	// operations won't try to use that version anyway.
+	//
+	// These optimizations bring
+	// 'go list -versions -m github.com/openshift/origin' down from 1m58s to 0m37s.
+	// That's still not great, but a substantial improvement.
+
+	versionHasGoMod := func(v string) (bool, error) {
+		_, err := r.code.ReadFile(v, "go.mod", codehost.MaxGoMod)
+		if err == nil {
+			return true, nil
+		}
+		if !os.IsNotExist(err) {
+			return false, &module.ModuleError{
+				Path: r.modPath,
+				Err:  err,
+			}
+		}
+		return false, nil
+	}
+
+	if len(list) > 0 {
+		ok, err := versionHasGoMod(list[len(list)-1])
 		if err != nil {
 			return nil, err
 		}
-		for _, rev := range incompatible {
-			f := files[rev]
-			if os.IsNotExist(f.Err) {
-				list = append(list, rev+"+incompatible")
-			}
+		if ok {
+			// The latest compatible version has a go.mod file, so assume that all
+			// subsequent versions do as well, and do not include any +incompatible
+			// versions. Even if we are wrong, the author clearly intends module
+			// consumers to be on the v0/v1 line instead of a higher +incompatible
+			// version. (See https://golang.org/issue/34189.)
+			//
+			// We know of at least two examples where this behavior is desired
+			// (github.com/russross/blackfriday@v2.0.0 and
+			// github.com/libp2p/go-libp2p@v6.0.23), and (as of 2019-10-29) have no
+			// concrete examples for which it is undesired.
+			return list, nil
 		}
 	}
 
-	SortVersions(list)
+	var lastMajor string
+	for i, v := range incompatible {
+		major := semver.Major(v)
+		if major == lastMajor {
+			list = append(list, v+"+incompatible")
+			continue
+		}
+
+		rem := incompatible[i:]
+		j := sort.Search(len(rem), func(j int) bool {
+			return semver.Major(rem[j]) != major
+		})
+		latestAtMajor := rem[j-1]
+
+		ok, err := versionHasGoMod(latestAtMajor)
+		if err != nil {
+			return nil, err
+		}
+		if ok {
+			// This major version has a go.mod file, so it is not allowed as
+			// +incompatible. Subsequent major versions are likely to also have
+			// go.mod files, so stop here.
+			break
+		}
+
+		lastMajor = major
+		list = append(list, v+"+incompatible")
+	}
+
 	return list, nil
 }
 
@@ -271,7 +359,7 @@
 				Path: r.modPath,
 				Err: &module.InvalidVersionError{
 					Version: info2.Version,
-					Err:     notExistError(err.Error()),
+					Err:     notExistError{err: err},
 				},
 			}
 		}
@@ -287,7 +375,7 @@
 				}
 			}
 
-			if err := module.MatchPathMajor(strings.TrimSuffix(info2.Version, "+incompatible"), r.pathMajor); err == nil {
+			if err := module.CheckPathMajor(strings.TrimSuffix(info2.Version, "+incompatible"), r.pathMajor); err == nil {
 				return nil, invalidf("+incompatible suffix not allowed: major version %s is compatible", semver.Major(info2.Version))
 			}
 		}
@@ -311,7 +399,7 @@
 			return checkGoMod()
 		}
 
-		if err := module.MatchPathMajor(info2.Version, r.pathMajor); err != nil {
+		if err := module.CheckPathMajor(info2.Version, r.pathMajor); err != nil {
 			if canUseIncompatible() {
 				info2.Version += "+incompatible"
 				return checkGoMod()
@@ -359,7 +447,7 @@
 			tagIsCanonical = true
 		}
 
-		if err := module.MatchPathMajor(v, r.pathMajor); err != nil {
+		if err := module.CheckPathMajor(v, r.pathMajor); err != nil {
 			if canUseIncompatible() {
 				return v + "+incompatible", tagIsCanonical
 			}
@@ -458,7 +546,7 @@
 		}
 	}()
 
-	if err := module.MatchPathMajor(version, r.pathMajor); err != nil {
+	if err := module.CheckPathMajor(version, r.pathMajor); err != nil {
 		return err
 	}
 
@@ -631,9 +719,6 @@
 		// because of replacement modules. This might be a fork of
 		// the real module, found at a different path, usable only in
 		// a replace directive.
-		//
-		// TODO(bcmills): This doesn't seem right. Investigate futher.
-		// (Notably: why can't we replace foo/v2 with fork-of-foo/v3?)
 		dir2 := path.Join(r.codeDir, r.pathMajor[1:])
 		file2 = path.Join(dir2, "go.mod")
 		gomod2, err2 := r.code.ReadFile(rev, file2, codehost.MaxGoMod)
@@ -659,11 +744,11 @@
 
 	// Not v2/go.mod, so it's either go.mod or nothing. Which is it?
 	if found1 {
-		// Explicit go.mod with matching module path OK.
+		// Explicit go.mod with matching major version ok.
 		return rev, r.codeDir, gomod1, nil
 	}
 	if err1 == nil {
-		// Explicit go.mod with non-matching module path disallowed.
+		// Explicit go.mod with non-matching major version disallowed.
 		suffix := ""
 		if file2 != "" {
 			suffix = fmt.Sprintf(" (and ...%s/go.mod does not exist)", r.pathMajor)
@@ -674,6 +759,9 @@
 		if r.pathMajor != "" { // ".v1", ".v2" for gopkg.in
 			return "", "", nil, fmt.Errorf("%s has non-...%s module path %q%s at revision %s", file1, r.pathMajor, mpath1, suffix, rev)
 		}
+		if _, _, ok := module.SplitPathVersion(mpath1); !ok {
+			return "", "", nil, fmt.Errorf("%s has malformed module path %q%s at revision %s", file1, mpath1, suffix, rev)
+		}
 		return "", "", nil, fmt.Errorf("%s has post-%s module path %q%s at revision %s", file1, semver.Major(version), mpath1, suffix, rev)
 	}
 
@@ -690,24 +778,43 @@
 	return "", "", nil, fmt.Errorf("missing %s/go.mod at revision %s", r.pathPrefix, rev)
 }
 
+// isMajor reports whether the versions allowed for mpath are compatible with
+// the major version(s) implied by pathMajor, or false if mpath has an invalid
+// version suffix.
 func isMajor(mpath, pathMajor string) bool {
 	if mpath == "" {
+		// If we don't have a path, we don't know what version(s) it is compatible with.
+		return false
+	}
+	_, mpathMajor, ok := module.SplitPathVersion(mpath)
+	if !ok {
+		// An invalid module path is not compatible with any version.
 		return false
 	}
 	if pathMajor == "" {
-		// mpath must NOT have version suffix.
-		i := len(mpath)
-		for i > 0 && '0' <= mpath[i-1] && mpath[i-1] <= '9' {
-			i--
-		}
-		if i < len(mpath) && i >= 2 && mpath[i-1] == 'v' && mpath[i-2] == '/' {
-			// Found valid suffix.
+		// All of the valid versions for a gopkg.in module that requires major
+		// version v0 or v1 are compatible with the "v0 or v1" implied by an empty
+		// pathMajor.
+		switch module.PathMajorPrefix(mpathMajor) {
+		case "", "v0", "v1":
+			return true
+		default:
 			return false
 		}
-		return true
 	}
-	// Otherwise pathMajor is ".v1", ".v2" (gopkg.in), or "/v2", "/v3" etc.
-	return strings.HasSuffix(mpath, pathMajor)
+	if mpathMajor == "" {
+		// Even if pathMajor is ".v0" or ".v1", we can't be sure that a module
+		// without a suffix is tagged appropriately. Besides, we don't expect clones
+		// of non-gopkg.in modules to have gopkg.in paths, so a non-empty,
+		// non-gopkg.in mpath is probably the wrong module for any such pathMajor
+		// anyway.
+		return false
+	}
+	// If both pathMajor and mpathMajor are non-empty, then we only care that they
+	// have the same major-version validation rules. A clone fetched via a /v2
+	// path might replace a module with path gopkg.in/foo.v2-unstable, and that's
+	// ok.
+	return pathMajor[1:] == mpathMajor[1:]
 }
 
 func (r *codeRepo) GoMod(version string) (data []byte, err error) {
@@ -774,19 +881,16 @@
 		}
 	}
 
-	rev, dir, _, err := r.findDir(version)
+	rev, subdir, _, err := r.findDir(version)
 	if err != nil {
 		return err
 	}
-	dl, actualDir, err := r.code.ReadZip(rev, dir, codehost.MaxZipFile)
+	dl, err := r.code.ReadZip(rev, subdir, codehost.MaxZipFile)
 	if err != nil {
 		return err
 	}
 	defer dl.Close()
-	if actualDir != "" && !hasPathPrefix(dir, actualDir) {
-		return fmt.Errorf("internal error: downloading %v %v: dir=%q but actualDir=%q", r.modPath, rev, dir, actualDir)
-	}
-	subdir := strings.Trim(strings.TrimPrefix(dir, actualDir), "/")
+	subdir = strings.Trim(subdir, "/")
 
 	// Spool to local file.
 	f, err := ioutil.TempFile("", "go-codehost-")
@@ -817,13 +921,12 @@
 		return err
 	}
 
-	zw := zip.NewWriter(dst)
+	var files []modzip.File
 	if subdir != "" {
 		subdir += "/"
 	}
 	haveLICENSE := false
 	topPrefix := ""
-	haveGoMod := make(map[string]bool)
 	for _, zf := range zr.File {
 		if topPrefix == "" {
 			i := strings.Index(zf.Name, "/")
@@ -835,106 +938,61 @@
 		if !strings.HasPrefix(zf.Name, topPrefix) {
 			return fmt.Errorf("zip file contains more than one top-level directory")
 		}
-		dir, file := path.Split(zf.Name)
-		if file == "go.mod" {
-			haveGoMod[dir] = true
-		}
-	}
-	root := topPrefix + subdir
-	inSubmodule := func(name string) bool {
-		for {
-			dir, _ := path.Split(name)
-			if len(dir) <= len(root) {
-				return false
-			}
-			if haveGoMod[dir] {
-				return true
-			}
-			name = dir[:len(dir)-1]
-		}
-	}
-
-	for _, zf := range zr.File {
-		if !zf.FileInfo().Mode().IsRegular() {
-			// Skip symlinks (golang.org/issue/27093).
-			continue
-		}
-
-		if topPrefix == "" {
-			i := strings.Index(zf.Name, "/")
-			if i < 0 {
-				return fmt.Errorf("missing top-level directory prefix")
-			}
-			topPrefix = zf.Name[:i+1]
-		}
-		if strings.HasSuffix(zf.Name, "/") { // drop directory dummy entries
-			continue
-		}
-		if !strings.HasPrefix(zf.Name, topPrefix) {
-			return fmt.Errorf("zip file contains more than one top-level directory")
-		}
 		name := strings.TrimPrefix(zf.Name, topPrefix)
 		if !strings.HasPrefix(name, subdir) {
 			continue
 		}
-		if name == ".hg_archival.txt" {
-			// Inserted by hg archive.
-			// Not correct to drop from other version control systems, but too bad.
-			continue
-		}
 		name = strings.TrimPrefix(name, subdir)
-		if isVendoredPackage(name) {
+		if name == "" || strings.HasSuffix(name, "/") {
 			continue
 		}
-		if inSubmodule(zf.Name) {
-			continue
-		}
-		base := path.Base(name)
-		if strings.ToLower(base) == "go.mod" && base != "go.mod" {
-			return fmt.Errorf("zip file contains %s, want all lower-case go.mod", zf.Name)
-		}
+		files = append(files, zipFile{name: name, f: zf})
 		if name == "LICENSE" {
 			haveLICENSE = true
 		}
-		size := int64(zf.UncompressedSize64)
-		if size < 0 || maxSize < size {
-			return fmt.Errorf("module source tree too big")
-		}
-		maxSize -= size
-
-		rc, err := zf.Open()
-		if err != nil {
-			return err
-		}
-		w, err := zw.Create(r.modPrefix(version) + "/" + name)
-		if err != nil {
-			return err
-		}
-		lr := &io.LimitedReader{R: rc, N: size + 1}
-		if _, err := io.Copy(w, lr); err != nil {
-			return err
-		}
-		if lr.N <= 0 {
-			return fmt.Errorf("individual file too large")
-		}
 	}
 
 	if !haveLICENSE && subdir != "" {
 		data, err := r.code.ReadFile(rev, "LICENSE", codehost.MaxLICENSE)
 		if err == nil {
-			w, err := zw.Create(r.modPrefix(version) + "/LICENSE")
-			if err != nil {
-				return err
-			}
-			if _, err := w.Write(data); err != nil {
-				return err
-			}
+			files = append(files, dataFile{name: "LICENSE", data: data})
 		}
 	}
 
-	return zw.Close()
+	return modzip.Create(dst, module.Version{Path: r.modPath, Version: version}, files)
 }
 
+type zipFile struct {
+	name string
+	f    *zip.File
+}
+
+func (f zipFile) Path() string                 { return f.name }
+func (f zipFile) Lstat() (os.FileInfo, error)  { return f.f.FileInfo(), nil }
+func (f zipFile) Open() (io.ReadCloser, error) { return f.f.Open() }
+
+type dataFile struct {
+	name string
+	data []byte
+}
+
+func (f dataFile) Path() string                { return f.name }
+func (f dataFile) Lstat() (os.FileInfo, error) { return dataFileInfo{f}, nil }
+func (f dataFile) Open() (io.ReadCloser, error) {
+	return ioutil.NopCloser(bytes.NewReader(f.data)), nil
+}
+
+type dataFileInfo struct {
+	f dataFile
+}
+
+func (fi dataFileInfo) Name() string       { return path.Base(fi.f.name) }
+func (fi dataFileInfo) Size() int64        { return int64(len(fi.f.data)) }
+func (fi dataFileInfo) Mode() os.FileMode  { return 0644 }
+func (fi dataFileInfo) ModTime() time.Time { return time.Time{} }
+func (fi dataFileInfo) IsDir() bool        { return false }
+func (fi dataFileInfo) Sys() interface{}   { return nil }
+
 // hasPathPrefix reports whether the path s begins with the
 // elements in prefix.
 func hasPathPrefix(s, prefix string) bool {
diff --git a/libgo/go/cmd/go/internal/modfetch/coderepo_test.go b/libgo/go/cmd/go/internal/modfetch/coderepo_test.go
index 1f2b95b..3983094 100644
--- a/libgo/go/cmd/go/internal/modfetch/coderepo_test.go
+++ b/libgo/go/cmd/go/internal/modfetch/coderepo_test.go
@@ -6,7 +6,11 @@
 
 import (
 	"archive/zip"
+	"crypto/sha256"
+	"encoding/hex"
+	"hash"
 	"internal/testenv"
+	"io"
 	"io/ioutil"
 	"log"
 	"os"
@@ -17,6 +21,8 @@
 
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/modfetch/codehost"
+
+	"golang.org/x/mod/sumdb/dirhash"
 )
 
 func TestMain(m *testing.M) {
@@ -52,20 +58,22 @@
 }
 
 type codeRepoTest struct {
-	vcs      string
-	path     string
-	lookerr  string
-	mpath    string
-	rev      string
-	err      string
-	version  string
-	name     string
-	short    string
-	time     time.Time
-	gomod    string
-	gomoderr string
-	zip      []string
-	ziperr   string
+	vcs         string
+	path        string
+	lookErr     string
+	mpath       string
+	rev         string
+	err         string
+	version     string
+	name        string
+	short       string
+	time        time.Time
+	gomod       string
+	gomodErr    string
+	zip         []string
+	zipErr      string
+	zipSum      string
+	zipFileHash string
 }
 
 var codeRepoTests = []codeRepoTest{
@@ -82,6 +90,8 @@
 			"README.md",
 			"pkg/p.go",
 		},
+		zipSum:      "h1:zVEjciLdlk/TPWCOyZo7k24T+tOKRQC+u8MKq/xS80I=",
+		zipFileHash: "738a00ddbfe8c329dce6b48e1f23c8e22a92db50f3cfb2653caa0d62676bc09c",
 	},
 	{
 		vcs:     "git",
@@ -96,6 +106,8 @@
 			"README.md",
 			"pkg/p.go",
 		},
+		zipSum:      "h1:nOznk2xKsLGkTnXe0q9t1Ewt9jxK+oadtafSUqHM3Ec=",
+		zipFileHash: "bacb08f391e29d2eaaef8281b5c129ee6d890e608ee65877e0003c0181a766c8",
 	},
 	{
 		vcs:  "git",
@@ -116,6 +128,8 @@
 			"README.md",
 			"pkg/p.go",
 		},
+		zipSum:      "h1:e040hOoWGeuJLawDjK9DW6med+cz9FxMFYDMOVG8ctQ=",
+		zipFileHash: "74caab65cfbea427c341fa815f3bb0378681d8f0e3cf62a7f207014263ec7be3",
 	},
 	{
 		vcs:     "git",
@@ -140,6 +154,8 @@
 			"README.md",
 			"pkg/p.go",
 		},
+		zipSum:      "h1:e040hOoWGeuJLawDjK9DW6med+cz9FxMFYDMOVG8ctQ=",
+		zipFileHash: "74caab65cfbea427c341fa815f3bb0378681d8f0e3cf62a7f207014263ec7be3",
 	},
 	{
 		vcs:     "git",
@@ -201,6 +217,8 @@
 			"pkg/p.go",
 			"LICENSE",
 		},
+		zipSum:      "h1:iMsJ/9uQsk6MnZNnJK311f11QiSlmN92Q2aSjCywuJY=",
+		zipFileHash: "95801bfa69c5197ae809af512946d22f22850068527cd78100ae3f176bc8043b",
 	},
 	{
 		vcs:     "git",
@@ -217,16 +235,20 @@
 			"go.mod",
 			"pkg/p.go",
 		},
+		zipSum:      "h1:M69k7q+8bQ+QUpHov45Z/NoR8rj3DsQJUnXLWvf01+Q=",
+		zipFileHash: "58af45fb248d320ea471f568e006379e2b8d71d6d1663f9b19b2e00fd9ac9265",
 	},
 	{
-		vcs:     "git",
-		path:    "github.com/rsc/vgotest1/v2",
-		rev:     "v2.0.1",
-		version: "v2.0.1",
-		name:    "ea65f87c8f52c15ea68f3bdd9925ef17e20d91e9",
-		short:   "ea65f87c8f52",
-		time:    time.Date(2018, 2, 19, 23, 14, 23, 0, time.UTC),
-		gomod:   "module \"github.com/rsc/vgotest1/v2\" // root go.mod\n",
+		vcs:         "git",
+		path:        "github.com/rsc/vgotest1/v2",
+		rev:         "v2.0.1",
+		version:     "v2.0.1",
+		name:        "ea65f87c8f52c15ea68f3bdd9925ef17e20d91e9",
+		short:       "ea65f87c8f52",
+		time:        time.Date(2018, 2, 19, 23, 14, 23, 0, time.UTC),
+		gomod:       "module \"github.com/rsc/vgotest1/v2\" // root go.mod\n",
+		zipSum:      "h1:QmgYy/zt+uoWhDpcsgrSVzYFvKtBEjl5zT/FRz9GTzA=",
+		zipFileHash: "1aedf1546d322a0121879ddfd6d0e8bfbd916d2cafbeb538ddb440e04b04b9ef",
 	},
 	{
 		vcs:     "git",
@@ -249,25 +271,29 @@
 		err:     "github.com/rsc/vgotest1/go.mod and .../v2/go.mod both have .../v2 module paths at revision v2.0.4",
 	},
 	{
-		vcs:     "git",
-		path:    "github.com/rsc/vgotest1/v2",
-		rev:     "v2.0.5",
-		version: "v2.0.5",
-		name:    "2f615117ce481c8efef46e0cc0b4b4dccfac8fea",
-		short:   "2f615117ce48",
-		time:    time.Date(2018, 2, 20, 0, 3, 59, 0, time.UTC),
-		gomod:   "module \"github.com/rsc/vgotest1/v2\" // v2/go.mod\n",
+		vcs:         "git",
+		path:        "github.com/rsc/vgotest1/v2",
+		rev:         "v2.0.5",
+		version:     "v2.0.5",
+		name:        "2f615117ce481c8efef46e0cc0b4b4dccfac8fea",
+		short:       "2f615117ce48",
+		time:        time.Date(2018, 2, 20, 0, 3, 59, 0, time.UTC),
+		gomod:       "module \"github.com/rsc/vgotest1/v2\" // v2/go.mod\n",
+		zipSum:      "h1:RIEb9q1SUSEQOzMn0zfl/LQxGFWlhWEAdeEguf1MLGU=",
+		zipFileHash: "7d92c2c328c5e9b0694101353705d5843746ec1d93a1e986d0da54c8a14dfe6d",
 	},
 	{
 		// redirect to github
-		vcs:     "git",
-		path:    "rsc.io/quote",
-		rev:     "v1.0.0",
-		version: "v1.0.0",
-		name:    "f488df80bcdbd3e5bafdc24ad7d1e79e83edd7e6",
-		short:   "f488df80bcdb",
-		time:    time.Date(2018, 2, 14, 0, 45, 20, 0, time.UTC),
-		gomod:   "module \"rsc.io/quote\"\n",
+		vcs:         "git",
+		path:        "rsc.io/quote",
+		rev:         "v1.0.0",
+		version:     "v1.0.0",
+		name:        "f488df80bcdbd3e5bafdc24ad7d1e79e83edd7e6",
+		short:       "f488df80bcdb",
+		time:        time.Date(2018, 2, 14, 0, 45, 20, 0, time.UTC),
+		gomod:       "module \"rsc.io/quote\"\n",
+		zipSum:      "h1:haUSojyo3j2M9g7CEUFG8Na09dtn7QKxvPGaPVQdGwM=",
+		zipFileHash: "5c08ba2c09a364f93704aaa780e7504346102c6ef4fe1333a11f09904a732078",
 	},
 	{
 		// redirect to static hosting proxy
@@ -281,22 +307,26 @@
 	},
 	{
 		// redirect to googlesource
-		vcs:     "git",
-		path:    "golang.org/x/text",
-		rev:     "4e4a3210bb",
-		version: "v0.3.1-0.20180208041248-4e4a3210bb54",
-		name:    "4e4a3210bb54bb31f6ab2cdca2edcc0b50c420c1",
-		short:   "4e4a3210bb54",
-		time:    time.Date(2018, 2, 8, 4, 12, 48, 0, time.UTC),
+		vcs:         "git",
+		path:        "golang.org/x/text",
+		rev:         "4e4a3210bb",
+		version:     "v0.3.1-0.20180208041248-4e4a3210bb54",
+		name:        "4e4a3210bb54bb31f6ab2cdca2edcc0b50c420c1",
+		short:       "4e4a3210bb54",
+		time:        time.Date(2018, 2, 8, 4, 12, 48, 0, time.UTC),
+		zipSum:      "h1:Yxu6pHX9X2RECiuw/Q5/4uvajuaowck8zOFKXgbfNBk=",
+		zipFileHash: "ac2c165a5c10aa5a7545dea60a08e019270b982fa6c8bdcb5943931de64922fe",
 	},
 	{
-		vcs:     "git",
-		path:    "github.com/pkg/errors",
-		rev:     "v0.8.0",
-		version: "v0.8.0",
-		name:    "645ef00459ed84a119197bfb8d8205042c6df63d",
-		short:   "645ef00459ed",
-		time:    time.Date(2016, 9, 29, 1, 48, 1, 0, time.UTC),
+		vcs:         "git",
+		path:        "github.com/pkg/errors",
+		rev:         "v0.8.0",
+		version:     "v0.8.0",
+		name:        "645ef00459ed84a119197bfb8d8205042c6df63d",
+		short:       "645ef00459ed",
+		time:        time.Date(2016, 9, 29, 1, 48, 1, 0, time.UTC),
+		zipSum:      "h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=",
+		zipFileHash: "e4fa69ba057356614edbc1da881a7d3ebb688505be49f65965686bcb859e2fae",
 	},
 	{
 		// package in subdirectory - custom domain
@@ -304,7 +334,7 @@
 		// but gopkg.in is special.
 		vcs:     "git",
 		path:    "gopkg.in/yaml.v2/abc",
-		lookerr: "invalid module path \"gopkg.in/yaml.v2/abc\"",
+		lookErr: "invalid module path \"gopkg.in/yaml.v2/abc\"",
 	},
 	{
 		// package in subdirectory - github
@@ -315,54 +345,52 @@
 		err:  "missing github.com/rsc/quote/buggy/go.mod at revision c4d4236f9242",
 	},
 	{
-		vcs:     "git",
-		path:    "gopkg.in/yaml.v2",
-		rev:     "d670f940",
-		version: "v2.0.0",
-		name:    "d670f9405373e636a5a2765eea47fac0c9bc91a4",
-		short:   "d670f9405373",
-		time:    time.Date(2018, 1, 9, 11, 43, 31, 0, time.UTC),
-		gomod:   "module gopkg.in/yaml.v2\n",
+		vcs:         "git",
+		path:        "gopkg.in/yaml.v2",
+		rev:         "d670f940",
+		version:     "v2.0.0",
+		name:        "d670f9405373e636a5a2765eea47fac0c9bc91a4",
+		short:       "d670f9405373",
+		time:        time.Date(2018, 1, 9, 11, 43, 31, 0, time.UTC),
+		gomod:       "module gopkg.in/yaml.v2\n",
+		zipSum:      "h1:uUkhRGrsEyx/laRdeS6YIQKIys8pg+lRSRdVMTYjivs=",
+		zipFileHash: "7b0a141b1b0b49772ab4eecfd11dfd6609a94a5e868cab04a3abb1861ffaa877",
 	},
 	{
-		vcs:     "git",
-		path:    "gopkg.in/check.v1",
-		rev:     "20d25e280405",
-		version: "v1.0.0-20161208181325-20d25e280405",
-		name:    "20d25e2804050c1cd24a7eea1e7a6447dd0e74ec",
-		short:   "20d25e280405",
-		time:    time.Date(2016, 12, 8, 18, 13, 25, 0, time.UTC),
-		gomod:   "module gopkg.in/check.v1\n",
+		vcs:         "git",
+		path:        "gopkg.in/check.v1",
+		rev:         "20d25e280405",
+		version:     "v1.0.0-20161208181325-20d25e280405",
+		name:        "20d25e2804050c1cd24a7eea1e7a6447dd0e74ec",
+		short:       "20d25e280405",
+		time:        time.Date(2016, 12, 8, 18, 13, 25, 0, time.UTC),
+		gomod:       "module gopkg.in/check.v1\n",
+		zipSum:      "h1:829vOVxxusYHC+IqBtkX5mbKtsY9fheQiQn0MZRVLfQ=",
+		zipFileHash: "9e7cb3f4f1e66d722306442b0dbe1f6f43d74d1736d54c510537bdfb1d6f432f",
 	},
 	{
-		vcs:     "git",
-		path:    "gopkg.in/yaml.v2",
-		rev:     "v2",
-		version: "v2.2.3-0.20190319135612-7b8349ac747c",
-		name:    "7b8349ac747c6a24702b762d2c4fd9266cf4f1d6",
-		short:   "7b8349ac747c",
-		time:    time.Date(2019, 03, 19, 13, 56, 12, 0, time.UTC),
-		gomod:   "module \"gopkg.in/yaml.v2\"\n\nrequire (\n\t\"gopkg.in/check.v1\" v0.0.0-20161208181325-20d25e280405\n)\n",
+		vcs:         "git",
+		path:        "vcs-test.golang.org/go/mod/gitrepo1",
+		rev:         "master",
+		version:     "v1.2.4-annotated",
+		name:        "ede458df7cd0fdca520df19a33158086a8a68e81",
+		short:       "ede458df7cd0",
+		time:        time.Date(2018, 4, 17, 19, 43, 22, 0, time.UTC),
+		gomod:       "module vcs-test.golang.org/go/mod/gitrepo1\n",
+		zipSum:      "h1:YJYZRsM9BHFTlVr8YADjT0cJH8uFIDtoc5NLiVqZEx8=",
+		zipFileHash: "c15e49d58b7a4c37966cbe5bc01a0330cd5f2927e990e1839bda1d407766d9c5",
 	},
 	{
-		vcs:     "git",
-		path:    "vcs-test.golang.org/go/mod/gitrepo1",
-		rev:     "master",
-		version: "v1.2.4-annotated",
-		name:    "ede458df7cd0fdca520df19a33158086a8a68e81",
-		short:   "ede458df7cd0",
-		time:    time.Date(2018, 4, 17, 19, 43, 22, 0, time.UTC),
-		gomod:   "module vcs-test.golang.org/go/mod/gitrepo1\n",
-	},
-	{
-		vcs:     "git",
-		path:    "gopkg.in/natefinch/lumberjack.v2",
-		rev:     "latest",
-		version: "v2.0.0-20170531160350-a96e63847dc3",
-		name:    "a96e63847dc3c67d17befa69c303767e2f84e54f",
-		short:   "a96e63847dc3",
-		time:    time.Date(2017, 5, 31, 16, 3, 50, 0, time.UTC),
-		gomod:   "module gopkg.in/natefinch/lumberjack.v2\n",
+		vcs:         "git",
+		path:        "gopkg.in/natefinch/lumberjack.v2",
+		rev:         "latest",
+		version:     "v2.0.0-20170531160350-a96e63847dc3",
+		name:        "a96e63847dc3c67d17befa69c303767e2f84e54f",
+		short:       "a96e63847dc3",
+		time:        time.Date(2017, 5, 31, 16, 3, 50, 0, time.UTC),
+		gomod:       "module gopkg.in/natefinch/lumberjack.v2\n",
+		zipSum:      "h1:AFxeG48hTWHhDTQDk/m2gorfVHUEa9vo3tp3D7TzwjI=",
+		zipFileHash: "b5de0da7bbbec76709eef1ac71b6c9ff423b9fbf3bb97b56743450d4937b06d5",
 	},
 	{
 		vcs:  "git",
@@ -381,14 +409,16 @@
 		gomod:   "module gopkg.in/natefinch/lumberjack.v2\n",
 	},
 	{
-		vcs:     "git",
-		path:    "vcs-test.golang.org/go/v2module/v2",
-		rev:     "v2.0.0",
-		version: "v2.0.0",
-		name:    "203b91c896acd173aa719e4cdcb7d463c4b090fa",
-		short:   "203b91c896ac",
-		time:    time.Date(2019, 4, 3, 15, 52, 15, 0, time.UTC),
-		gomod:   "module vcs-test.golang.org/go/v2module/v2\n\ngo 1.12\n",
+		vcs:         "git",
+		path:        "vcs-test.golang.org/go/v2module/v2",
+		rev:         "v2.0.0",
+		version:     "v2.0.0",
+		name:        "203b91c896acd173aa719e4cdcb7d463c4b090fa",
+		short:       "203b91c896ac",
+		time:        time.Date(2019, 4, 3, 15, 52, 15, 0, time.UTC),
+		gomod:       "module vcs-test.golang.org/go/v2module/v2\n\ngo 1.12\n",
+		zipSum:      "h1:JItBZ+gwA5WvtZEGEbuDL4lUttGtLrs53lmdurq3bOg=",
+		zipFileHash: "9ea9ae1673cffcc44b7fdd3cc89953d68c102449b46c982dbf085e4f2e394da5",
 	},
 }
 
@@ -411,21 +441,23 @@
 					}
 
 					repo, err := Lookup("direct", tt.path)
-					if tt.lookerr != "" {
-						if err != nil && err.Error() == tt.lookerr {
+					if tt.lookErr != "" {
+						if err != nil && err.Error() == tt.lookErr {
 							return
 						}
-						t.Errorf("Lookup(%q): %v, want error %q", tt.path, err, tt.lookerr)
+						t.Errorf("Lookup(%q): %v, want error %q", tt.path, err, tt.lookErr)
 					}
 					if err != nil {
 						t.Fatalf("Lookup(%q): %v", tt.path, err)
 					}
+
 					if tt.mpath == "" {
 						tt.mpath = tt.path
 					}
 					if mpath := repo.ModulePath(); mpath != tt.mpath {
 						t.Errorf("repo.ModulePath() = %q, want %q", mpath, tt.mpath)
 					}
+
 					info, err := repo.Stat(tt.rev)
 					if err != nil {
 						if tt.err != "" {
@@ -451,56 +483,86 @@
 					if !info.Time.Equal(tt.time) {
 						t.Errorf("info.Time = %v, want %v", info.Time, tt.time)
 					}
-					if tt.gomod != "" || tt.gomoderr != "" {
+
+					if tt.gomod != "" || tt.gomodErr != "" {
 						data, err := repo.GoMod(tt.version)
-						if err != nil && tt.gomoderr == "" {
+						if err != nil && tt.gomodErr == "" {
 							t.Errorf("repo.GoMod(%q): %v", tt.version, err)
-						} else if err != nil && tt.gomoderr != "" {
-							if err.Error() != tt.gomoderr {
-								t.Errorf("repo.GoMod(%q): %v, want %q", tt.version, err, tt.gomoderr)
+						} else if err != nil && tt.gomodErr != "" {
+							if err.Error() != tt.gomodErr {
+								t.Errorf("repo.GoMod(%q): %v, want %q", tt.version, err, tt.gomodErr)
 							}
-						} else if tt.gomoderr != "" {
-							t.Errorf("repo.GoMod(%q) = %q, want error %q", tt.version, data, tt.gomoderr)
+						} else if tt.gomodErr != "" {
+							t.Errorf("repo.GoMod(%q) = %q, want error %q", tt.version, data, tt.gomodErr)
 						} else if string(data) != tt.gomod {
 							t.Errorf("repo.GoMod(%q) = %q, want %q", tt.version, data, tt.gomod)
 						}
 					}
-					if tt.zip != nil || tt.ziperr != "" {
+
+					needHash := !testing.Short() && (tt.zipFileHash != "" || tt.zipSum != "")
+					if tt.zip != nil || tt.zipErr != "" || needHash {
 						f, err := ioutil.TempFile(tmpdir, tt.version+".zip.")
 						if err != nil {
 							t.Fatalf("ioutil.TempFile: %v", err)
 						}
 						zipfile := f.Name()
-						err = repo.Zip(f, tt.version)
+						defer func() {
+							f.Close()
+							os.Remove(zipfile)
+						}()
+
+						var w io.Writer
+						var h hash.Hash
+						if needHash {
+							h = sha256.New()
+							w = io.MultiWriter(f, h)
+						} else {
+							w = f
+						}
+						err = repo.Zip(w, tt.version)
 						f.Close()
 						if err != nil {
-							if tt.ziperr != "" {
-								if err.Error() == tt.ziperr {
+							if tt.zipErr != "" {
+								if err.Error() == tt.zipErr {
 									return
 								}
-								t.Fatalf("repo.Zip(%q): %v, want error %q", tt.version, err, tt.ziperr)
+								t.Fatalf("repo.Zip(%q): %v, want error %q", tt.version, err, tt.zipErr)
 							}
 							t.Fatalf("repo.Zip(%q): %v", tt.version, err)
 						}
-						if tt.ziperr != "" {
-							t.Errorf("repo.Zip(%q): success, want error %q", tt.version, tt.ziperr)
+						if tt.zipErr != "" {
+							t.Errorf("repo.Zip(%q): success, want error %q", tt.version, tt.zipErr)
 						}
-						prefix := tt.path + "@" + tt.version + "/"
-						z, err := zip.OpenReader(zipfile)
-						if err != nil {
-							t.Fatalf("open zip %s: %v", zipfile, err)
-						}
-						var names []string
-						for _, file := range z.File {
-							if !strings.HasPrefix(file.Name, prefix) {
-								t.Errorf("zip entry %v does not start with prefix %v", file.Name, prefix)
-								continue
+
+						if tt.zip != nil {
+							prefix := tt.path + "@" + tt.version + "/"
+							z, err := zip.OpenReader(zipfile)
+							if err != nil {
+								t.Fatalf("open zip %s: %v", zipfile, err)
 							}
-							names = append(names, file.Name[len(prefix):])
+							var names []string
+							for _, file := range z.File {
+								if !strings.HasPrefix(file.Name, prefix) {
+									t.Errorf("zip entry %v does not start with prefix %v", file.Name, prefix)
+									continue
+								}
+								names = append(names, file.Name[len(prefix):])
+							}
+							z.Close()
+							if !reflect.DeepEqual(names, tt.zip) {
+								t.Fatalf("zip = %v\nwant %v\n", names, tt.zip)
+							}
 						}
-						z.Close()
-						if !reflect.DeepEqual(names, tt.zip) {
-							t.Fatalf("zip = %v\nwant %v\n", names, tt.zip)
+
+						if needHash {
+							sum, err := dirhash.HashZip(zipfile, dirhash.Hash1)
+							if err != nil {
+								t.Errorf("repo.Zip(%q): %v", tt.version, err)
+							} else if sum != tt.zipSum {
+								t.Errorf("repo.Zip(%q): got file with sum %q, want %q", tt.version, sum, tt.zipSum)
+							} else if zipFileHash := hex.EncodeToString(h.Sum(nil)); zipFileHash != tt.zipFileHash {
+								t.Errorf("repo.Zip(%q): got file with hash %q, want %q (but content has correct sum)", tt.version, zipFileHash, tt.zipFileHash)
+							}
 						}
 					}
 				}
@@ -508,26 +570,26 @@
 			t.Run(strings.ReplaceAll(tt.path, "/", "_")+"/"+tt.rev, f(tt))
 			if strings.HasPrefix(tt.path, vgotest1git) {
 				for vcs, alt := range altVgotests {
-					// Note: Communicating with f through tt; should be cleaned up.
-					old := tt
-					tt.vcs = vcs
-					tt.path = alt + strings.TrimPrefix(tt.path, vgotest1git)
-					if strings.HasPrefix(tt.mpath, vgotest1git) {
-						tt.mpath = alt + strings.TrimPrefix(tt.mpath, vgotest1git)
+					altTest := tt
+					altTest.vcs = vcs
+					altTest.path = alt + strings.TrimPrefix(altTest.path, vgotest1git)
+					if strings.HasPrefix(altTest.mpath, vgotest1git) {
+						altTest.mpath = alt + strings.TrimPrefix(altTest.mpath, vgotest1git)
 					}
 					var m map[string]string
 					if alt == vgotest1hg {
 						m = hgmap
 					}
-					tt.version = remap(tt.version, m)
-					tt.name = remap(tt.name, m)
-					tt.short = remap(tt.short, m)
-					tt.rev = remap(tt.rev, m)
-					tt.err = remap(tt.err, m)
-					tt.gomoderr = remap(tt.gomoderr, m)
-					tt.ziperr = remap(tt.ziperr, m)
-					t.Run(strings.ReplaceAll(tt.path, "/", "_")+"/"+tt.rev, f(tt))
-					tt = old
+					altTest.version = remap(altTest.version, m)
+					altTest.name = remap(altTest.name, m)
+					altTest.short = remap(altTest.short, m)
+					altTest.rev = remap(altTest.rev, m)
+					altTest.err = remap(altTest.err, m)
+					altTest.gomodErr = remap(altTest.gomodErr, m)
+					altTest.zipErr = remap(altTest.zipErr, m)
+					altTest.zipSum = ""
+					altTest.zipFileHash = ""
+					t.Run(strings.ReplaceAll(altTest.path, "/", "_")+"/"+altTest.rev, f(altTest))
 				}
 			}
 		}
@@ -575,7 +637,7 @@
 	{
 		vcs:      "git",
 		path:     "github.com/rsc/vgotest1",
-		versions: []string{"v0.0.0", "v0.0.1", "v1.0.0", "v1.0.1", "v1.0.2", "v1.0.3", "v1.1.0", "v2.0.0+incompatible"},
+		versions: []string{"v0.0.0", "v0.0.1", "v1.0.0", "v1.0.1", "v1.0.2", "v1.0.3", "v1.1.0"},
 	},
 	{
 		vcs:      "git",
diff --git a/libgo/go/cmd/go/internal/modfetch/fetch.go b/libgo/go/cmd/go/internal/modfetch/fetch.go
index 51a5602..54fbd92 100644
--- a/libgo/go/cmd/go/internal/modfetch/fetch.go
+++ b/libgo/go/cmd/go/internal/modfetch/fetch.go
@@ -7,6 +7,7 @@
 import (
 	"archive/zip"
 	"bytes"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -18,10 +19,13 @@
 
 	"cmd/go/internal/base"
 	"cmd/go/internal/cfg"
-	"cmd/go/internal/dirhash"
-	"cmd/go/internal/module"
+	"cmd/go/internal/lockedfile"
 	"cmd/go/internal/par"
 	"cmd/go/internal/renameio"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/sumdb/dirhash"
+	modzip "golang.org/x/mod/zip"
 )
 
 var downloadCache par.Cache
@@ -69,10 +73,6 @@
 		return err
 	}
 
-	if cfg.CmdName != "mod download" {
-		fmt.Fprintf(os.Stderr, "go: extracting %s %s\n", mod.Path, mod.Version)
-	}
-
 	unlock, err := lockVersion(mod)
 	if err != nil {
 		return err
@@ -114,8 +114,7 @@
 		}
 	}()
 
-	modpath := mod.Path + "@" + mod.Version
-	if err := Unzip(tmpDir, zipfile, modpath, 0); err != nil {
+	if err := modzip.Unzip(tmpDir, mod, zipfile); err != nil {
 		fmt.Fprintf(os.Stderr, "-> %s\n", err)
 		return err
 	}
@@ -124,9 +123,11 @@
 		return err
 	}
 
-	// Make dir read-only only *after* renaming it.
-	// os.Rename was observed to fail for read-only directories on macOS.
-	makeDirsReadOnly(dir)
+	if !cfg.ModCacheRW {
+		// Make dir read-only only *after* renaming it.
+		// os.Rename was observed to fail for read-only directories on macOS.
+		makeDirsReadOnly(dir)
+	}
 	return nil
 }
 
@@ -249,7 +250,9 @@
 	if err != nil {
 		return err
 	}
-	checkModSum(mod, hash)
+	if err := checkModSum(mod, hash); err != nil {
+		return err
+	}
 
 	if err := renameio.WriteFile(zipfile+"hash", []byte(hash), 0666); err != nil {
 		return err
@@ -263,6 +266,45 @@
 	return nil
 }
 
+// makeDirsReadOnly makes a best-effort attempt to remove write permissions for dir
+// and its transitive contents.
+func makeDirsReadOnly(dir string) {
+	type pathMode struct {
+		path string
+		mode os.FileMode
+	}
+	var dirs []pathMode // in lexical order
+	filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
+		if err == nil && info.Mode()&0222 != 0 {
+			if info.IsDir() {
+				dirs = append(dirs, pathMode{path, info.Mode()})
+			}
+		}
+		return nil
+	})
+
+	// Run over list backward to chmod children before parents.
+	for i := len(dirs) - 1; i >= 0; i-- {
+		os.Chmod(dirs[i].path, dirs[i].mode&^0222)
+	}
+}
+
+// RemoveAll removes a directory written by Download or Unzip, first applying
+// any permission changes needed to do so.
+func RemoveAll(dir string) error {
+	// Module cache has 0555 directories; make them writable in order to remove content.
+	filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return nil // ignore errors walking in file system
+		}
+		if info.IsDir() {
+			os.Chmod(path, 0777)
+		}
+		return nil
+	})
+	return os.RemoveAll(dir)
+}
+
 var GoSumFile string // path to go.sum; set by package modload
 
 type modSum struct {
@@ -281,21 +323,22 @@
 }
 
 // initGoSum initializes the go.sum data.
-// It reports whether use of go.sum is now enabled.
+// The boolean it returns reports whether the
+// use of go.sum is now enabled.
 // The goSum lock must be held.
-func initGoSum() bool {
+func initGoSum() (bool, error) {
 	if GoSumFile == "" {
-		return false
+		return false, nil
 	}
 	if goSum.m != nil {
-		return true
+		return true, nil
 	}
 
 	goSum.m = make(map[module.Version][]string)
 	goSum.checked = make(map[modSum]bool)
-	data, err := renameio.ReadFile(GoSumFile)
+	data, err := lockedfile.Read(GoSumFile)
 	if err != nil && !os.IsNotExist(err) {
-		base.Fatalf("go: %v", err)
+		return false, err
 	}
 	goSum.enabled = true
 	readGoSum(goSum.m, GoSumFile, data)
@@ -313,7 +356,7 @@
 		}
 		goSum.modverify = alt
 	}
-	return true
+	return true, nil
 }
 
 // emptyGoModHash is the hash of a 1-file tree containing a 0-length go.mod.
@@ -323,7 +366,7 @@
 
 // readGoSum parses data, which is the content of file,
 // and adds it to goSum.m. The goSum lock must be held.
-func readGoSum(dst map[module.Version][]string, file string, data []byte) {
+func readGoSum(dst map[module.Version][]string, file string, data []byte) error {
 	lineno := 0
 	for len(data) > 0 {
 		var line []byte
@@ -340,7 +383,7 @@
 			continue
 		}
 		if len(f) != 3 {
-			base.Fatalf("go: malformed go.sum:\n%s:%d: wrong number of fields %v", file, lineno, len(f))
+			return fmt.Errorf("malformed go.sum:\n%s:%d: wrong number of fields %v", file, lineno, len(f))
 		}
 		if f[2] == emptyGoModHash {
 			// Old bug; drop it.
@@ -349,6 +392,7 @@
 		mod := module.Version{Path: f[0], Version: f[1]}
 		dst[mod] = append(dst[mod], f[2])
 	}
+	return nil
 }
 
 // checkMod checks the given module's checksum.
@@ -361,22 +405,24 @@
 	// Do the file I/O before acquiring the go.sum lock.
 	ziphash, err := CachePath(mod, "ziphash")
 	if err != nil {
-		base.Fatalf("verifying %s@%s: %v", mod.Path, mod.Version, err)
+		base.Fatalf("verifying %v", module.VersionError(mod, err))
 	}
 	data, err := renameio.ReadFile(ziphash)
 	if err != nil {
-		if os.IsNotExist(err) {
+		if errors.Is(err, os.ErrNotExist) {
 			// This can happen if someone does rm -rf GOPATH/src/cache/download. So it goes.
 			return
 		}
-		base.Fatalf("verifying %s@%s: %v", mod.Path, mod.Version, err)
+		base.Fatalf("verifying %v", module.VersionError(mod, err))
 	}
 	h := strings.TrimSpace(string(data))
 	if !strings.HasPrefix(h, "h1:") {
-		base.Fatalf("verifying %s@%s: unexpected ziphash: %q", mod.Path, mod.Version, h)
+		base.Fatalf("verifying %v", module.VersionError(mod, fmt.Errorf("unexpected ziphash: %q", h)))
 	}
 
-	checkModSum(mod, h)
+	if err := checkModSum(mod, h); err != nil {
+		base.Fatalf("%s", err)
+	}
 }
 
 // goModSum returns the checksum for the go.mod contents.
@@ -388,17 +434,17 @@
 
 // checkGoMod checks the given module's go.mod checksum;
 // data is the go.mod content.
-func checkGoMod(path, version string, data []byte) {
+func checkGoMod(path, version string, data []byte) error {
 	h, err := goModSum(data)
 	if err != nil {
-		base.Fatalf("verifying %s %s go.mod: %v", path, version, err)
+		return &module.ModuleError{Path: path, Version: version, Err: fmt.Errorf("verifying go.mod: %v", err)}
 	}
 
-	checkModSum(module.Version{Path: path, Version: version + "/go.mod"}, h)
+	return checkModSum(module.Version{Path: path, Version: version + "/go.mod"}, h)
 }
 
 // checkModSum checks that the recorded checksum for mod is h.
-func checkModSum(mod module.Version, h string) {
+func checkModSum(mod module.Version, h string) error {
 	// We lock goSum when manipulating it,
 	// but we arrange to release the lock when calling checkSumDB,
 	// so that parallel calls to checkModHash can execute parallel calls
@@ -406,19 +452,24 @@
 
 	// Check whether mod+h is listed in go.sum already. If so, we're done.
 	goSum.mu.Lock()
-	inited := initGoSum()
+	inited, err := initGoSum()
+	if err != nil {
+		return err
+	}
 	done := inited && haveModSumLocked(mod, h)
 	goSum.mu.Unlock()
 
 	if done {
-		return
+		return nil
 	}
 
 	// Not listed, so we want to add them.
 	// Consult checksum database if appropriate.
 	if useSumDB(mod) {
 		// Calls base.Fatalf if mismatch detected.
-		checkSumDB(mod, h)
+		if err := checkSumDB(mod, h); err != nil {
+			return err
+		}
 	}
 
 	// Add mod+h to go.sum, if it hasn't appeared already.
@@ -427,6 +478,7 @@
 		addModSumLocked(mod, h)
 		goSum.mu.Unlock()
 	}
+	return nil
 }
 
 // haveModSumLocked reports whether the pair mod,h is already listed in go.sum.
@@ -460,22 +512,23 @@
 
 // checkSumDB checks the mod, h pair against the Go checksum database.
 // It calls base.Fatalf if the hash is to be rejected.
-func checkSumDB(mod module.Version, h string) {
+func checkSumDB(mod module.Version, h string) error {
 	db, lines, err := lookupSumDB(mod)
 	if err != nil {
-		base.Fatalf("verifying %s@%s: %v", mod.Path, mod.Version, err)
+		return module.VersionError(mod, fmt.Errorf("verifying module: %v", err))
 	}
 
 	have := mod.Path + " " + mod.Version + " " + h
 	prefix := mod.Path + " " + mod.Version + " h1:"
 	for _, line := range lines {
 		if line == have {
-			return
+			return nil
 		}
 		if strings.HasPrefix(line, prefix) {
-			base.Fatalf("verifying %s@%s: checksum mismatch\n\tdownloaded: %v\n\t%s: %v"+sumdbMismatch, mod.Path, mod.Version, h, db, line[len(prefix)-len("h1:"):])
+			return module.VersionError(mod, fmt.Errorf("verifying module: checksum mismatch\n\tdownloaded: %v\n\t%s: %v"+sumdbMismatch, h, db, line[len(prefix)-len("h1:"):]))
 		}
 	}
+	return nil
 }
 
 // Sum returns the checksum for the downloaded copy of the given module,
@@ -516,60 +569,45 @@
 		base.Fatalf("go: updates to go.sum needed, disabled by -mod=readonly")
 	}
 
-	// We want to avoid races between creating the lockfile and deleting it, but
-	// we also don't want to leave a permanent lockfile in the user's repository.
-	//
-	// On top of that, if we crash while writing go.sum, we don't want to lose the
-	// sums that were already present in the file, so it's important that we write
-	// the file by renaming rather than truncating — which means that we can't
-	// lock the go.sum file itself.
-	//
-	// Instead, we'll lock a distinguished file in the cache directory: that will
-	// only race if the user runs `go clean -modcache` concurrently with a command
-	// that updates go.sum, and that's already racy to begin with.
-	//
-	// We'll end up slightly over-synchronizing go.sum writes if the user runs a
-	// bunch of go commands that update sums in separate modules simultaneously,
-	// but that's unlikely to matter in practice.
-
-	unlock := SideLock()
-	defer unlock()
-
-	if !goSum.overwrite {
-		// Re-read the go.sum file to incorporate any sums added by other processes
-		// in the meantime.
-		data, err := renameio.ReadFile(GoSumFile)
-		if err != nil && !os.IsNotExist(err) {
-			base.Fatalf("go: re-reading go.sum: %v", err)
-		}
-
-		// Add only the sums that we actually checked: the user may have edited or
-		// truncated the file to remove erroneous hashes, and we shouldn't restore
-		// them without good reason.
-		goSum.m = make(map[module.Version][]string, len(goSum.m))
-		readGoSum(goSum.m, GoSumFile, data)
-		for ms := range goSum.checked {
-			addModSumLocked(ms.mod, ms.sum)
-			goSum.dirty = true
-		}
+	// Make a best-effort attempt to acquire the side lock, only to exclude
+	// previous versions of the 'go' command from making simultaneous edits.
+	if unlock, err := SideLock(); err == nil {
+		defer unlock()
 	}
 
-	var mods []module.Version
-	for m := range goSum.m {
-		mods = append(mods, m)
-	}
-	module.Sort(mods)
-	var buf bytes.Buffer
-	for _, m := range mods {
-		list := goSum.m[m]
-		sort.Strings(list)
-		for _, h := range list {
-			fmt.Fprintf(&buf, "%s %s %s\n", m.Path, m.Version, h)
+	err := lockedfile.Transform(GoSumFile, func(data []byte) ([]byte, error) {
+		if !goSum.overwrite {
+			// Incorporate any sums added by other processes in the meantime.
+			// Add only the sums that we actually checked: the user may have edited or
+			// truncated the file to remove erroneous hashes, and we shouldn't restore
+			// them without good reason.
+			goSum.m = make(map[module.Version][]string, len(goSum.m))
+			readGoSum(goSum.m, GoSumFile, data)
+			for ms := range goSum.checked {
+				addModSumLocked(ms.mod, ms.sum)
+				goSum.dirty = true
+			}
 		}
-	}
 
-	if err := renameio.WriteFile(GoSumFile, buf.Bytes(), 0666); err != nil {
-		base.Fatalf("go: writing go.sum: %v", err)
+		var mods []module.Version
+		for m := range goSum.m {
+			mods = append(mods, m)
+		}
+		module.Sort(mods)
+
+		var buf bytes.Buffer
+		for _, m := range mods {
+			list := goSum.m[m]
+			sort.Strings(list)
+			for _, h := range list {
+				fmt.Fprintf(&buf, "%s %s %s\n", m.Path, m.Version, h)
+			}
+		}
+		return buf.Bytes(), nil
+	})
+
+	if err != nil {
+		base.Fatalf("go: updating go.sum: %v", err)
 	}
 
 	goSum.checked = make(map[modSum]bool)
@@ -585,7 +623,11 @@
 func TrimGoSum(keep map[module.Version]bool) {
 	goSum.mu.Lock()
 	defer goSum.mu.Unlock()
-	if !initGoSum() {
+	inited, err := initGoSum()
+	if err != nil {
+		base.Fatalf("%s", err)
+	}
+	if !inited {
 		return
 	}
 
diff --git a/libgo/go/cmd/go/internal/modfetch/insecure.go b/libgo/go/cmd/go/internal/modfetch/insecure.go
new file mode 100644
index 0000000..8420432
--- /dev/null
+++ b/libgo/go/cmd/go/internal/modfetch/insecure.go
@@ -0,0 +1,16 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package modfetch
+
+import (
+	"cmd/go/internal/cfg"
+	"cmd/go/internal/get"
+	"cmd/go/internal/str"
+)
+
+// allowInsecure reports whether we are allowed to fetch this path in an insecure manner.
+func allowInsecure(path string) bool {
+	return get.Insecure || str.GlobsMatchPath(cfg.GOINSECURE, path)
+}
diff --git a/libgo/go/cmd/go/internal/modfetch/proxy.go b/libgo/go/cmd/go/internal/modfetch/proxy.go
index 569ef3a..dcea71a 100644
--- a/libgo/go/cmd/go/internal/modfetch/proxy.go
+++ b/libgo/go/cmd/go/internal/modfetch/proxy.go
@@ -22,9 +22,10 @@
 	"cmd/go/internal/base"
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/module"
-	"cmd/go/internal/semver"
 	"cmd/go/internal/web"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 var HelpGoproxy = &base.Command{
@@ -38,8 +39,8 @@
 
 The GET requests sent to a Go module proxy are:
 
-GET $GOPROXY/<module>/@v/list returns a list of all known versions of the
-given module, one per line.
+GET $GOPROXY/<module>/@v/list returns a list of known versions of the given
+module, one per line.
 
 GET $GOPROXY/<module>/@v/<version>.info returns JSON-formatted metadata
 about that version of the given module.
@@ -50,6 +51,21 @@
 GET $GOPROXY/<module>/@v/<version>.zip returns the zip archive
 for that version of the given module.
 
+GET $GOPROXY/<module>/@latest returns JSON-formatted metadata about the
+latest known version of the given module in the same format as
+<module>/@v/<version>.info. The latest version should be the version of
+the module the go command may use if <module>/@v/list is empty or no
+listed version is suitable. <module>/@latest is optional and may not
+be implemented by a module proxy.
+
+When resolving the latest version of a module, the go command will request
+<module>/@v/list, then, if no suitable versions are found, <module>/@latest.
+The go command prefers, in order: the semantically highest release version,
+the semantically highest pre-release version, and the chronologically
+most recent pseudo-version. In Go 1.12 and earlier, the go command considered
+pseudo-versions in <module>/@v/list to be pre-release versions, but this is
+no longer true since Go 1.13.
+
 To avoid problems when serving from case-sensitive file systems,
 the <module> and <version> elements are case-encoded, replacing every
 uppercase letter with an exclamation mark followed by the corresponding
@@ -150,13 +166,28 @@
 		return f("off")
 	}
 
+	var lastAttemptErr error
 	for _, proxy := range proxies {
 		err = f(proxy)
 		if !errors.Is(err, os.ErrNotExist) {
+			lastAttemptErr = err
 			break
 		}
+
+		// The error indicates that the module does not exist.
+		// In general we prefer to report the last such error,
+		// because it indicates the error that occurs after all other
+		// options have been exhausted.
+		//
+		// However, for modules in the NOPROXY list, the most useful error occurs
+		// first (with proxy set to "noproxy"), and the subsequent errors are all
+		// errNoProxy (which is not particularly helpful). Do not overwrite a more
+		// useful error with errNoproxy.
+		if lastAttemptErr == nil || !errors.Is(err, errNoproxy) {
+			lastAttemptErr = err
+		}
 	}
-	return err
+	return lastAttemptErr
 }
 
 type proxyRepo struct {
@@ -182,7 +213,7 @@
 		return nil, fmt.Errorf("invalid proxy URL scheme (must be https, http, file): %s", web.Redacted(base))
 	}
 
-	enc, err := module.EncodePath(path)
+	enc, err := module.EscapePath(path)
 	if err != nil {
 		return nil, err
 	}
@@ -321,7 +352,7 @@
 }
 
 func (p *proxyRepo) Stat(rev string) (*RevInfo, error) {
-	encRev, err := module.EncodeVersion(rev)
+	encRev, err := module.EscapeVersion(rev)
 	if err != nil {
 		return nil, p.versionError(rev, err)
 	}
@@ -362,7 +393,7 @@
 		return nil, p.versionError(version, fmt.Errorf("internal error: version passed to GoMod is not canonical"))
 	}
 
-	encVer, err := module.EncodeVersion(version)
+	encVer, err := module.EscapeVersion(version)
 	if err != nil {
 		return nil, p.versionError(version, err)
 	}
@@ -378,7 +409,7 @@
 		return p.versionError(version, fmt.Errorf("internal error: version passed to Zip is not canonical"))
 	}
 
-	encVer, err := module.EncodeVersion(version)
+	encVer, err := module.EscapeVersion(version)
 	if err != nil {
 		return p.versionError(version, err)
 	}
diff --git a/libgo/go/cmd/go/internal/modfetch/pseudo.go b/libgo/go/cmd/go/internal/modfetch/pseudo.go
index 8c063b9..57dee11 100644
--- a/libgo/go/cmd/go/internal/modfetch/pseudo.go
+++ b/libgo/go/cmd/go/internal/modfetch/pseudo.go
@@ -40,9 +40,10 @@
 	"strings"
 	"time"
 
-	"cmd/go/internal/module"
-	"cmd/go/internal/semver"
 	"internal/lazyregexp"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 var pseudoVersionRE = lazyregexp.New(`^v[0-9]+\.(0\.0-|\d+\.\d+-([^+]*\.)?0\.)\d{14}-[A-Za-z0-9]+(\+[0-9A-Za-z-]+(\.[0-9A-Za-z-]+)*)?$`)
diff --git a/libgo/go/cmd/go/internal/modfetch/repo.go b/libgo/go/cmd/go/internal/modfetch/repo.go
index be52a8d..f03bdd8 100644
--- a/libgo/go/cmd/go/internal/modfetch/repo.go
+++ b/libgo/go/cmd/go/internal/modfetch/repo.go
@@ -5,7 +5,6 @@
 package modfetch
 
 import (
-	"errors"
 	"fmt"
 	"io"
 	"os"
@@ -17,9 +16,10 @@
 	"cmd/go/internal/get"
 	"cmd/go/internal/modfetch/codehost"
 	"cmd/go/internal/par"
-	"cmd/go/internal/semver"
 	"cmd/go/internal/str"
 	web "cmd/go/internal/web"
+
+	"golang.org/x/mod/semver"
 )
 
 const traceRepo = false // trace all repo actions, for debugging
@@ -34,7 +34,7 @@
 	// Pseudo-versions are not included.
 	// Versions should be returned sorted in semver order
 	// (implementations can use SortVersions).
-	Versions(prefix string) (tags []string, err error)
+	Versions(prefix string) ([]string, error)
 
 	// Stat returns information about the revision rev.
 	// A revision can be any identifier known to the underlying service:
@@ -55,7 +55,7 @@
 
 // A Rev describes a single revision in a module repository.
 type RevInfo struct {
-	Version string    // version string
+	Version string    // suggested version string for this revision
 	Time    time.Time // commit time
 
 	// These fields are used for Stat of arbitrary rev,
@@ -214,7 +214,7 @@
 // lookup returns the module with the given module path.
 func lookup(proxy, path string) (r Repo, err error) {
 	if cfg.BuildMod == "vendor" {
-		return nil, errModVendor
+		return nil, errLookupDisabled
 	}
 
 	if str.GlobsMatchPath(cfg.GONOPROXY, path) {
@@ -238,22 +238,33 @@
 	}
 }
 
+type lookupDisabledError struct{}
+
+func (lookupDisabledError) Error() string {
+	if cfg.BuildModReason == "" {
+		return fmt.Sprintf("module lookup disabled by -mod=%s", cfg.BuildMod)
+	}
+	return fmt.Sprintf("module lookup disabled by -mod=%s\n\t(%s)", cfg.BuildMod, cfg.BuildModReason)
+}
+
+var errLookupDisabled error = lookupDisabledError{}
+
 var (
-	errModVendor       = errors.New("module lookup disabled by -mod=vendor")
-	errProxyOff        = notExistError("module lookup disabled by GOPROXY=off")
-	errNoproxy   error = notExistError("disabled by GOPRIVATE/GONOPROXY")
-	errUseProxy  error = notExistError("path does not match GOPRIVATE/GONOPROXY")
+	errProxyOff       = notExistErrorf("module lookup disabled by GOPROXY=off")
+	errNoproxy  error = notExistErrorf("disabled by GOPRIVATE/GONOPROXY")
+	errUseProxy error = notExistErrorf("path does not match GOPRIVATE/GONOPROXY")
 )
 
 func lookupDirect(path string) (Repo, error) {
 	security := web.SecureOnly
-	if get.Insecure {
+
+	if allowInsecure(path) {
 		security = web.Insecure
 	}
 	rr, err := get.RepoRootForImportPath(path, get.PreferMod, security)
 	if err != nil {
 		// We don't know where to find code for a module with this path.
-		return nil, notExistError(err.Error())
+		return nil, notExistError{err: err}
 	}
 
 	if rr.VCS == "mod" {
@@ -292,7 +303,7 @@
 	// version control system, we ignore meta tags about modules
 	// and use only direct source control entries (get.IgnoreMod).
 	security := web.SecureOnly
-	if get.Insecure {
+	if allowInsecure(path) {
 		security = web.Insecure
 	}
 	rr, err := get.RepoRootForImportPath(path, get.IgnoreMod, security)
@@ -397,11 +408,22 @@
 }
 
 // A notExistError is like os.ErrNotExist, but with a custom message
-type notExistError string
+type notExistError struct {
+	err error
+}
+
+func notExistErrorf(format string, args ...interface{}) error {
+	return notExistError{fmt.Errorf(format, args...)}
+}
 
 func (e notExistError) Error() string {
-	return string(e)
+	return e.err.Error()
 }
+
 func (notExistError) Is(target error) bool {
 	return target == os.ErrNotExist
 }
+
+func (e notExistError) Unwrap() error {
+	return e.err
+}
diff --git a/libgo/go/cmd/go/internal/modfetch/sumdb.go b/libgo/go/cmd/go/internal/modfetch/sumdb.go
index 1c24ec2..1ed71df 100644
--- a/libgo/go/cmd/go/internal/modfetch/sumdb.go
+++ b/libgo/go/cmd/go/internal/modfetch/sumdb.go
@@ -24,11 +24,11 @@
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/get"
 	"cmd/go/internal/lockedfile"
-	"cmd/go/internal/module"
-	"cmd/go/internal/note"
 	"cmd/go/internal/str"
-	"cmd/go/internal/sumweb"
 	"cmd/go/internal/web"
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/sumdb"
+	"golang.org/x/mod/sumdb/note"
 )
 
 // useSumDB reports whether to use the Go checksum database for the given module.
@@ -52,11 +52,11 @@
 var (
 	dbOnce sync.Once
 	dbName string
-	db     *sumweb.Conn
+	db     *sumdb.Client
 	dbErr  error
 )
 
-func dbDial() (dbName string, db *sumweb.Conn, err error) {
+func dbDial() (dbName string, db *sumdb.Client, err error) {
 	// $GOSUMDB can be "key" or "key url",
 	// and the key can be a full verifier key
 	// or a host on our list of known keys.
@@ -106,7 +106,7 @@
 		base = u
 	}
 
-	return name, sumweb.NewConn(&dbClient{key: key[0], name: name, direct: direct, base: base}), nil
+	return name, sumdb.NewClient(&dbClient{key: key[0], name: name, direct: direct, base: base}), nil
 }
 
 type dbClient struct {
@@ -227,7 +227,7 @@
 		return err
 	}
 	if len(data) > 0 && !bytes.Equal(data, old) {
-		return sumweb.ErrWriteConflict
+		return sumdb.ErrWriteConflict
 	}
 	if _, err := f.Seek(0, 0); err != nil {
 		return err
diff --git a/libgo/go/cmd/go/internal/modfetch/unzip.go b/libgo/go/cmd/go/internal/modfetch/unzip.go
deleted file mode 100644
index ac13ede..0000000
--- a/libgo/go/cmd/go/internal/modfetch/unzip.go
+++ /dev/null
@@ -1,173 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package modfetch
-
-import (
-	"archive/zip"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"os"
-	"path"
-	"path/filepath"
-	"strings"
-
-	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/module"
-	"cmd/go/internal/str"
-)
-
-func Unzip(dir, zipfile, prefix string, maxSize int64) error {
-	// TODO(bcmills): The maxSize parameter is invariantly 0. Remove it.
-	if maxSize == 0 {
-		maxSize = codehost.MaxZipFile
-	}
-
-	// Directory can exist, but must be empty.
-	files, _ := ioutil.ReadDir(dir)
-	if len(files) > 0 {
-		return fmt.Errorf("target directory %v exists and is not empty", dir)
-	}
-	if err := os.MkdirAll(dir, 0777); err != nil {
-		return err
-	}
-
-	f, err := os.Open(zipfile)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-	info, err := f.Stat()
-	if err != nil {
-		return err
-	}
-
-	z, err := zip.NewReader(f, info.Size())
-	if err != nil {
-		return fmt.Errorf("unzip %v: %s", zipfile, err)
-	}
-
-	foldPath := make(map[string]string)
-	var checkFold func(string) error
-	checkFold = func(name string) error {
-		fold := str.ToFold(name)
-		if foldPath[fold] == name {
-			return nil
-		}
-		dir := path.Dir(name)
-		if dir != "." {
-			if err := checkFold(dir); err != nil {
-				return err
-			}
-		}
-		if foldPath[fold] == "" {
-			foldPath[fold] = name
-			return nil
-		}
-		other := foldPath[fold]
-		return fmt.Errorf("unzip %v: case-insensitive file name collision: %q and %q", zipfile, other, name)
-	}
-
-	// Check total size, valid file names.
-	var size int64
-	for _, zf := range z.File {
-		if !str.HasPathPrefix(zf.Name, prefix) {
-			return fmt.Errorf("unzip %v: unexpected file name %s", zipfile, zf.Name)
-		}
-		if zf.Name == prefix || strings.HasSuffix(zf.Name, "/") {
-			continue
-		}
-		name := zf.Name[len(prefix)+1:]
-		if err := module.CheckFilePath(name); err != nil {
-			return fmt.Errorf("unzip %v: %v", zipfile, err)
-		}
-		if err := checkFold(name); err != nil {
-			return err
-		}
-		if path.Clean(zf.Name) != zf.Name || strings.HasPrefix(zf.Name[len(prefix)+1:], "/") {
-			return fmt.Errorf("unzip %v: invalid file name %s", zipfile, zf.Name)
-		}
-		s := int64(zf.UncompressedSize64)
-		if s < 0 || maxSize-size < s {
-			return fmt.Errorf("unzip %v: content too large", zipfile)
-		}
-		size += s
-	}
-
-	// Unzip, enforcing sizes checked earlier.
-	for _, zf := range z.File {
-		if zf.Name == prefix || strings.HasSuffix(zf.Name, "/") {
-			continue
-		}
-		name := zf.Name[len(prefix):]
-		dst := filepath.Join(dir, name)
-		if err := os.MkdirAll(filepath.Dir(dst), 0777); err != nil {
-			return err
-		}
-		w, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0444)
-		if err != nil {
-			return fmt.Errorf("unzip %v: %v", zipfile, err)
-		}
-		r, err := zf.Open()
-		if err != nil {
-			w.Close()
-			return fmt.Errorf("unzip %v: %v", zipfile, err)
-		}
-		lr := &io.LimitedReader{R: r, N: int64(zf.UncompressedSize64) + 1}
-		_, err = io.Copy(w, lr)
-		r.Close()
-		if err != nil {
-			w.Close()
-			return fmt.Errorf("unzip %v: %v", zipfile, err)
-		}
-		if err := w.Close(); err != nil {
-			return fmt.Errorf("unzip %v: %v", zipfile, err)
-		}
-		if lr.N <= 0 {
-			return fmt.Errorf("unzip %v: content too large", zipfile)
-		}
-	}
-
-	return nil
-}
-
-// makeDirsReadOnly makes a best-effort attempt to remove write permissions for dir
-// and its transitive contents.
-func makeDirsReadOnly(dir string) {
-	type pathMode struct {
-		path string
-		mode os.FileMode
-	}
-	var dirs []pathMode // in lexical order
-	filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
-		if err == nil && info.Mode()&0222 != 0 {
-			if info.IsDir() {
-				dirs = append(dirs, pathMode{path, info.Mode()})
-			}
-		}
-		return nil
-	})
-
-	// Run over list backward to chmod children before parents.
-	for i := len(dirs) - 1; i >= 0; i-- {
-		os.Chmod(dirs[i].path, dirs[i].mode&^0222)
-	}
-}
-
-// RemoveAll removes a directory written by Download or Unzip, first applying
-// any permission changes needed to do so.
-func RemoveAll(dir string) error {
-	// Module cache has 0555 directories; make them writable in order to remove content.
-	filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return nil // ignore errors walking in file system
-		}
-		if info.IsDir() {
-			os.Chmod(path, 0777)
-		}
-		return nil
-	})
-	return os.RemoveAll(dir)
-}
diff --git a/libgo/go/cmd/go/internal/modfetch/zip_sum_test/testdata/zip_sums.csv b/libgo/go/cmd/go/internal/modfetch/zip_sum_test/testdata/zip_sums.csv
new file mode 100644
index 0000000..6eb8d7f
--- /dev/null
+++ b/libgo/go/cmd/go/internal/modfetch/zip_sum_test/testdata/zip_sums.csv
@@ -0,0 +1,2124 @@
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diff --git a/libgo/go/cmd/go/internal/modfetch/zip_sum_test/zip_sum_test.go b/libgo/go/cmd/go/internal/modfetch/zip_sum_test/zip_sum_test.go
new file mode 100644
index 0000000..331d634
--- /dev/null
+++ b/libgo/go/cmd/go/internal/modfetch/zip_sum_test/zip_sum_test.go
@@ -0,0 +1,230 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package zip_sum_test tests that the module zip files produced by modfetch
+// have consistent content sums. Ideally the zip files themselves are also
+// stable over time, though this is not strictly necessary.
+//
+// This test loads a table from testdata/zip_sums.csv. The table has columns
+// for module path, version, content sum, and zip file hash. The table
+// includes a large number of real modules. The test downloads these modules
+// in direct mode and verifies the zip files.
+//
+// This test is very slow, and it depends on outside modules that change
+// frequently, so this is a manual test. To enable it, pass the -zipsum flag.
+package zip_sum_test
+
+import (
+	"crypto/sha256"
+	"encoding/csv"
+	"encoding/hex"
+	"flag"
+	"fmt"
+	"internal/testenv"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"cmd/go/internal/cfg"
+	"cmd/go/internal/modfetch"
+	"cmd/go/internal/modload"
+
+	"golang.org/x/mod/module"
+)
+
+var (
+	updateTestData = flag.Bool("u", false, "when set, tests may update files in testdata instead of failing")
+	enableZipSum   = flag.Bool("zipsum", false, "enable TestZipSums")
+	debugZipSum    = flag.Bool("testwork", false, "when set, TestZipSums will preserve its test directory")
+	modCacheDir    = flag.String("zipsumcache", "", "module cache to use instead of temp directory")
+	shardCount     = flag.Int("zipsumshardcount", 1, "number of shards to divide TestZipSums into")
+	shardIndex     = flag.Int("zipsumshard", 0, "index of TestZipSums shard to test (0 <= zipsumshard < zipsumshardcount)")
+)
+
+const zipSumsPath = "testdata/zip_sums.csv"
+
+type zipSumTest struct {
+	m                     module.Version
+	wantSum, wantFileHash string
+}
+
+func TestZipSums(t *testing.T) {
+	if !*enableZipSum {
+		// This test is very slow and heavily dependent on external repositories.
+		// Only run it explicitly.
+		t.Skip("TestZipSum not enabled with -zipsum")
+	}
+	if *shardCount < 1 {
+		t.Fatal("-zipsumshardcount must be a positive integer")
+	}
+	if *shardIndex < 0 || *shardCount <= *shardIndex {
+		t.Fatal("-zipsumshard must be between 0 and -zipsumshardcount")
+	}
+
+	testenv.MustHaveGoBuild(t)
+	testenv.MustHaveExternalNetwork(t)
+	testenv.MustHaveExecPath(t, "bzr")
+	testenv.MustHaveExecPath(t, "git")
+	// TODO(jayconrod): add hg, svn, and fossil modules to testdata.
+	// Could not find any for now.
+
+	tests, err := readZipSumTests()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if *modCacheDir != "" {
+		cfg.BuildContext.GOPATH = *modCacheDir
+	} else {
+		tmpDir, err := ioutil.TempDir("", "TestZipSums")
+		if err != nil {
+			t.Fatal(err)
+		}
+		if *debugZipSum {
+			fmt.Fprintf(os.Stderr, "TestZipSums: modCacheDir: %s\n", tmpDir)
+		} else {
+			defer os.RemoveAll(tmpDir)
+		}
+		cfg.BuildContext.GOPATH = tmpDir
+	}
+
+	cfg.GOPROXY = "direct"
+	cfg.GOSUMDB = "off"
+	modload.Init()
+
+	// Shard tests by downloading only every nth module when shard flags are set.
+	// This makes it easier to test small groups of modules quickly. We avoid
+	// testing similarly named modules together (the list is sorted by module
+	// path and version).
+	if *shardCount > 1 {
+		r := *shardIndex
+		w := 0
+		for r < len(tests) {
+			tests[w] = tests[r]
+			w++
+			r += *shardCount
+		}
+		tests = tests[:w]
+	}
+
+	// Download modules with a rate limit. We may run out of file descriptors
+	// or cause timeouts without a limit.
+	needUpdate := false
+	for i := range tests {
+		test := &tests[i]
+		name := fmt.Sprintf("%s@%s", strings.ReplaceAll(test.m.Path, "/", "_"), test.m.Version)
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+			zipPath, err := modfetch.DownloadZip(test.m)
+			if err != nil {
+				if *updateTestData {
+					t.Logf("%s: could not download module: %s (will remove from testdata)", test.m, err)
+					test.m.Path = "" // mark for deletion
+					needUpdate = true
+				} else {
+					t.Errorf("%s: could not download mdoule: %s", test.m, err)
+				}
+				return
+			}
+
+			sum := modfetch.Sum(test.m)
+			if sum != test.wantSum {
+				if *updateTestData {
+					t.Logf("%s: updating content sum to %s", test.m, sum)
+					test.wantSum = sum
+					needUpdate = true
+				} else {
+					t.Errorf("%s: got content sum %s; want sum %s", test.m, sum, test.wantSum)
+					return
+				}
+			}
+
+			h := sha256.New()
+			f, err := os.Open(zipPath)
+			if err != nil {
+				t.Errorf("%s: %v", test.m, err)
+			}
+			defer f.Close()
+			if _, err := io.Copy(h, f); err != nil {
+				t.Errorf("%s: %v", test.m, err)
+			}
+			zipHash := hex.EncodeToString(h.Sum(nil))
+			if zipHash != test.wantFileHash {
+				if *updateTestData {
+					t.Logf("%s: updating zip file hash to %s", test.m, zipHash)
+					test.wantFileHash = zipHash
+					needUpdate = true
+				} else {
+					t.Errorf("%s: got zip file hash %s; want hash %s (but content sum matches)", test.m, zipHash, test.wantFileHash)
+				}
+			}
+		})
+	}
+
+	if needUpdate {
+		// Remove tests marked for deletion
+		r, w := 0, 0
+		for r < len(tests) {
+			if tests[r].m.Path != "" {
+				tests[w] = tests[r]
+				w++
+			}
+			r++
+		}
+		tests = tests[:w]
+
+		if err := writeZipSumTests(tests); err != nil {
+			t.Error(err)
+		}
+	}
+}
+
+func readZipSumTests() ([]zipSumTest, error) {
+	f, err := os.Open(filepath.FromSlash(zipSumsPath))
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	r := csv.NewReader(f)
+
+	var tests []zipSumTest
+	for {
+		line, err := r.Read()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return nil, err
+		} else if len(line) != 4 {
+			return nil, fmt.Errorf("%s:%d: malformed line", f.Name(), len(tests)+1)
+		}
+		test := zipSumTest{m: module.Version{Path: line[0], Version: line[1]}, wantSum: line[2], wantFileHash: line[3]}
+		tests = append(tests, test)
+	}
+	return tests, nil
+}
+
+func writeZipSumTests(tests []zipSumTest) (err error) {
+	f, err := os.Create(filepath.FromSlash(zipSumsPath))
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if cerr := f.Close(); err == nil && cerr != nil {
+			err = cerr
+		}
+	}()
+	w := csv.NewWriter(f)
+	line := make([]string, 0, 4)
+	for _, test := range tests {
+		line = append(line[:0], test.m.Path, test.m.Version, test.wantSum, test.wantFileHash)
+		if err := w.Write(line); err != nil {
+			return err
+		}
+	}
+	w.Flush()
+	return nil
+}
diff --git a/libgo/go/cmd/go/internal/modfile/gopkgin.go b/libgo/go/cmd/go/internal/modfile/gopkgin.go
deleted file mode 100644
index c94b384..0000000
--- a/libgo/go/cmd/go/internal/modfile/gopkgin.go
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// TODO: Figure out what gopkg.in should do.
-
-package modfile
-
-import "strings"
-
-// ParseGopkgIn splits gopkg.in import paths into their constituent parts
-func ParseGopkgIn(path string) (root, repo, major, subdir string, ok bool) {
-	if !strings.HasPrefix(path, "gopkg.in/") {
-		return
-	}
-	f := strings.Split(path, "/")
-	if len(f) >= 2 {
-		if elem, v, ok := dotV(f[1]); ok {
-			root = strings.Join(f[:2], "/")
-			repo = "github.com/go-" + elem + "/" + elem
-			major = v
-			subdir = strings.Join(f[2:], "/")
-			return root, repo, major, subdir, true
-		}
-	}
-	if len(f) >= 3 {
-		if elem, v, ok := dotV(f[2]); ok {
-			root = strings.Join(f[:3], "/")
-			repo = "github.com/" + f[1] + "/" + elem
-			major = v
-			subdir = strings.Join(f[3:], "/")
-			return root, repo, major, subdir, true
-		}
-	}
-	return
-}
-
-func dotV(name string) (elem, v string, ok bool) {
-	i := len(name) - 1
-	for i >= 0 && '0' <= name[i] && name[i] <= '9' {
-		i--
-	}
-	if i <= 2 || i+1 >= len(name) || name[i-1] != '.' || name[i] != 'v' || name[i+1] == '0' && len(name) != i+2 {
-		return "", "", false
-	}
-	return name[:i-1], name[i:], true
-}
diff --git a/libgo/go/cmd/go/internal/modfile/read_test.go b/libgo/go/cmd/go/internal/modfile/read_test.go
deleted file mode 100644
index 8cb1a39..0000000
--- a/libgo/go/cmd/go/internal/modfile/read_test.go
+++ /dev/null
@@ -1,365 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package modfile
-
-import (
-	"bytes"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"reflect"
-	"strings"
-	"testing"
-)
-
-// exists reports whether the named file exists.
-func exists(name string) bool {
-	_, err := os.Stat(name)
-	return err == nil
-}
-
-// Test that reading and then writing the golden files
-// does not change their output.
-func TestPrintGolden(t *testing.T) {
-	outs, err := filepath.Glob("testdata/*.golden")
-	if err != nil {
-		t.Fatal(err)
-	}
-	for _, out := range outs {
-		testPrint(t, out, out)
-	}
-}
-
-// testPrint is a helper for testing the printer.
-// It reads the file named in, reformats it, and compares
-// the result to the file named out.
-func testPrint(t *testing.T, in, out string) {
-	data, err := ioutil.ReadFile(in)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-
-	golden, err := ioutil.ReadFile(out)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-
-	base := "testdata/" + filepath.Base(in)
-	f, err := parse(in, data)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-
-	ndata := Format(f)
-
-	if !bytes.Equal(ndata, golden) {
-		t.Errorf("formatted %s incorrectly: diff shows -golden, +ours", base)
-		tdiff(t, string(golden), string(ndata))
-		return
-	}
-}
-
-func TestParseLax(t *testing.T) {
-	badFile := []byte(`module m
-		surprise attack
-		x y (
-			z
-		)
-		exclude v1.2.3
-		replace <-!!!
-	`)
-	_, err := ParseLax("file", badFile, nil)
-	if err != nil {
-		t.Fatalf("ParseLax did not ignore irrelevant errors: %v", err)
-	}
-}
-
-// Test that when files in the testdata directory are parsed
-// and printed and parsed again, we get the same parse tree
-// both times.
-func TestPrintParse(t *testing.T) {
-	outs, err := filepath.Glob("testdata/*")
-	if err != nil {
-		t.Fatal(err)
-	}
-	for _, out := range outs {
-		data, err := ioutil.ReadFile(out)
-		if err != nil {
-			t.Error(err)
-			continue
-		}
-
-		base := "testdata/" + filepath.Base(out)
-		f, err := parse(base, data)
-		if err != nil {
-			t.Errorf("parsing original: %v", err)
-			continue
-		}
-
-		ndata := Format(f)
-		f2, err := parse(base, ndata)
-		if err != nil {
-			t.Errorf("parsing reformatted: %v", err)
-			continue
-		}
-
-		eq := eqchecker{file: base}
-		if err := eq.check(f, f2); err != nil {
-			t.Errorf("not equal (parse/Format/parse): %v", err)
-		}
-
-		pf1, err := Parse(base, data, nil)
-		if err != nil {
-			switch base {
-			case "testdata/replace2.in", "testdata/gopkg.in.golden":
-				t.Errorf("should parse %v: %v", base, err)
-			}
-		}
-		if err == nil {
-			pf2, err := Parse(base, ndata, nil)
-			if err != nil {
-				t.Errorf("Parsing reformatted: %v", err)
-				continue
-			}
-			eq := eqchecker{file: base}
-			if err := eq.check(pf1, pf2); err != nil {
-				t.Errorf("not equal (parse/Format/Parse): %v", err)
-			}
-
-			ndata2, err := pf1.Format()
-			if err != nil {
-				t.Errorf("reformat: %v", err)
-			}
-			pf3, err := Parse(base, ndata2, nil)
-			if err != nil {
-				t.Errorf("Parsing reformatted2: %v", err)
-				continue
-			}
-			eq = eqchecker{file: base}
-			if err := eq.check(pf1, pf3); err != nil {
-				t.Errorf("not equal (Parse/Format/Parse): %v", err)
-			}
-			ndata = ndata2
-		}
-
-		if strings.HasSuffix(out, ".in") {
-			golden, err := ioutil.ReadFile(strings.TrimSuffix(out, ".in") + ".golden")
-			if err != nil {
-				t.Error(err)
-				continue
-			}
-			if !bytes.Equal(ndata, golden) {
-				t.Errorf("formatted %s incorrectly: diff shows -golden, +ours", base)
-				tdiff(t, string(golden), string(ndata))
-				return
-			}
-		}
-	}
-}
-
-// An eqchecker holds state for checking the equality of two parse trees.
-type eqchecker struct {
-	file string
-	pos  Position
-}
-
-// errorf returns an error described by the printf-style format and arguments,
-// inserting the current file position before the error text.
-func (eq *eqchecker) errorf(format string, args ...interface{}) error {
-	return fmt.Errorf("%s:%d: %s", eq.file, eq.pos.Line,
-		fmt.Sprintf(format, args...))
-}
-
-// check checks that v and w represent the same parse tree.
-// If not, it returns an error describing the first difference.
-func (eq *eqchecker) check(v, w interface{}) error {
-	return eq.checkValue(reflect.ValueOf(v), reflect.ValueOf(w))
-}
-
-var (
-	posType      = reflect.TypeOf(Position{})
-	commentsType = reflect.TypeOf(Comments{})
-)
-
-// checkValue checks that v and w represent the same parse tree.
-// If not, it returns an error describing the first difference.
-func (eq *eqchecker) checkValue(v, w reflect.Value) error {
-	// inner returns the innermost expression for v.
-	// if v is a non-nil interface value, it returns the concrete
-	// value in the interface.
-	inner := func(v reflect.Value) reflect.Value {
-		for {
-			if v.Kind() == reflect.Interface && !v.IsNil() {
-				v = v.Elem()
-				continue
-			}
-			break
-		}
-		return v
-	}
-
-	v = inner(v)
-	w = inner(w)
-	if v.Kind() == reflect.Invalid && w.Kind() == reflect.Invalid {
-		return nil
-	}
-	if v.Kind() == reflect.Invalid {
-		return eq.errorf("nil interface became %s", w.Type())
-	}
-	if w.Kind() == reflect.Invalid {
-		return eq.errorf("%s became nil interface", v.Type())
-	}
-
-	if v.Type() != w.Type() {
-		return eq.errorf("%s became %s", v.Type(), w.Type())
-	}
-
-	if p, ok := v.Interface().(Expr); ok {
-		eq.pos, _ = p.Span()
-	}
-
-	switch v.Kind() {
-	default:
-		return eq.errorf("unexpected type %s", v.Type())
-
-	case reflect.Bool, reflect.Int, reflect.String:
-		vi := v.Interface()
-		wi := w.Interface()
-		if vi != wi {
-			return eq.errorf("%v became %v", vi, wi)
-		}
-
-	case reflect.Slice:
-		vl := v.Len()
-		wl := w.Len()
-		for i := 0; i < vl || i < wl; i++ {
-			if i >= vl {
-				return eq.errorf("unexpected %s", w.Index(i).Type())
-			}
-			if i >= wl {
-				return eq.errorf("missing %s", v.Index(i).Type())
-			}
-			if err := eq.checkValue(v.Index(i), w.Index(i)); err != nil {
-				return err
-			}
-		}
-
-	case reflect.Struct:
-		// Fields in struct must match.
-		t := v.Type()
-		n := t.NumField()
-		for i := 0; i < n; i++ {
-			tf := t.Field(i)
-			switch {
-			default:
-				if err := eq.checkValue(v.Field(i), w.Field(i)); err != nil {
-					return err
-				}
-
-			case tf.Type == posType: // ignore positions
-			case tf.Type == commentsType: // ignore comment assignment
-			}
-		}
-
-	case reflect.Ptr, reflect.Interface:
-		if v.IsNil() != w.IsNil() {
-			if v.IsNil() {
-				return eq.errorf("unexpected %s", w.Elem().Type())
-			}
-			return eq.errorf("missing %s", v.Elem().Type())
-		}
-		if err := eq.checkValue(v.Elem(), w.Elem()); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// diff returns the output of running diff on b1 and b2.
-func diff(b1, b2 []byte) (data []byte, err error) {
-	f1, err := ioutil.TempFile("", "testdiff")
-	if err != nil {
-		return nil, err
-	}
-	defer os.Remove(f1.Name())
-	defer f1.Close()
-
-	f2, err := ioutil.TempFile("", "testdiff")
-	if err != nil {
-		return nil, err
-	}
-	defer os.Remove(f2.Name())
-	defer f2.Close()
-
-	f1.Write(b1)
-	f2.Write(b2)
-
-	data, err = exec.Command("diff", "-u", f1.Name(), f2.Name()).CombinedOutput()
-	if len(data) > 0 {
-		// diff exits with a non-zero status when the files don't match.
-		// Ignore that failure as long as we get output.
-		err = nil
-	}
-	return
-}
-
-// tdiff logs the diff output to t.Error.
-func tdiff(t *testing.T, a, b string) {
-	data, err := diff([]byte(a), []byte(b))
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	t.Error(string(data))
-}
-
-var modulePathTests = []struct {
-	input    []byte
-	expected string
-}{
-	{input: []byte("module \"github.com/rsc/vgotest\""), expected: "github.com/rsc/vgotest"},
-	{input: []byte("module github.com/rsc/vgotest"), expected: "github.com/rsc/vgotest"},
-	{input: []byte("module  \"github.com/rsc/vgotest\""), expected: "github.com/rsc/vgotest"},
-	{input: []byte("module  github.com/rsc/vgotest"), expected: "github.com/rsc/vgotest"},
-	{input: []byte("module `github.com/rsc/vgotest`"), expected: "github.com/rsc/vgotest"},
-	{input: []byte("module \"github.com/rsc/vgotest/v2\""), expected: "github.com/rsc/vgotest/v2"},
-	{input: []byte("module github.com/rsc/vgotest/v2"), expected: "github.com/rsc/vgotest/v2"},
-	{input: []byte("module \"gopkg.in/yaml.v2\""), expected: "gopkg.in/yaml.v2"},
-	{input: []byte("module gopkg.in/yaml.v2"), expected: "gopkg.in/yaml.v2"},
-	{input: []byte("module \"gopkg.in/check.v1\"\n"), expected: "gopkg.in/check.v1"},
-	{input: []byte("module \"gopkg.in/check.v1\n\""), expected: ""},
-	{input: []byte("module gopkg.in/check.v1\n"), expected: "gopkg.in/check.v1"},
-	{input: []byte("module \"gopkg.in/check.v1\"\r\n"), expected: "gopkg.in/check.v1"},
-	{input: []byte("module gopkg.in/check.v1\r\n"), expected: "gopkg.in/check.v1"},
-	{input: []byte("module \"gopkg.in/check.v1\"\n\n"), expected: "gopkg.in/check.v1"},
-	{input: []byte("module gopkg.in/check.v1\n\n"), expected: "gopkg.in/check.v1"},
-	{input: []byte("module \n\"gopkg.in/check.v1\"\n\n"), expected: ""},
-	{input: []byte("module \ngopkg.in/check.v1\n\n"), expected: ""},
-	{input: []byte("module \"gopkg.in/check.v1\"asd"), expected: ""},
-	{input: []byte("module \n\"gopkg.in/check.v1\"\n\n"), expected: ""},
-	{input: []byte("module \ngopkg.in/check.v1\n\n"), expected: ""},
-	{input: []byte("module \"gopkg.in/check.v1\"asd"), expected: ""},
-	{input: []byte("module  \nmodule a/b/c "), expected: "a/b/c"},
-	{input: []byte("module \"   \""), expected: "   "},
-	{input: []byte("module   "), expected: ""},
-	{input: []byte("module \"  a/b/c  \""), expected: "  a/b/c  "},
-	{input: []byte("module \"github.com/rsc/vgotest1\" // with a comment"), expected: "github.com/rsc/vgotest1"},
-}
-
-func TestModulePath(t *testing.T) {
-	for _, test := range modulePathTests {
-		t.Run(string(test.input), func(t *testing.T) {
-			result := ModulePath(test.input)
-			if result != test.expected {
-				t.Fatalf("ModulePath(%q): %s, want %s", string(test.input), result, test.expected)
-			}
-		})
-	}
-}
diff --git a/libgo/go/cmd/go/internal/modfile/rule_test.go b/libgo/go/cmd/go/internal/modfile/rule_test.go
deleted file mode 100644
index b88ad62..0000000
--- a/libgo/go/cmd/go/internal/modfile/rule_test.go
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package modfile
-
-import (
-	"bytes"
-	"fmt"
-	"testing"
-)
-
-var addRequireTests = []struct {
-	in   string
-	path string
-	vers string
-	out  string
-}{
-	{
-		`
-		module m
-		require x.y/z v1.2.3
-		`,
-		"x.y/z", "v1.5.6",
-		`
-		module m
-		require x.y/z v1.5.6
-		`,
-	},
-	{
-		`
-		module m
-		require x.y/z v1.2.3
-		`,
-		"x.y/w", "v1.5.6",
-		`
-		module m
-		require (
-			x.y/z v1.2.3
-			x.y/w v1.5.6
-		)
-		`,
-	},
-	{
-		`
-		module m
-		require x.y/z v1.2.3
-		require x.y/q/v2 v2.3.4
-		`,
-		"x.y/w", "v1.5.6",
-		`
-		module m
-		require x.y/z v1.2.3
-		require (
-			x.y/q/v2 v2.3.4
-			x.y/w v1.5.6
-		)
-		`,
-	},
-}
-
-func TestAddRequire(t *testing.T) {
-	for i, tt := range addRequireTests {
-		t.Run(fmt.Sprintf("#%d", i), func(t *testing.T) {
-			f, err := Parse("in", []byte(tt.in), nil)
-			if err != nil {
-				t.Fatal(err)
-			}
-			g, err := Parse("out", []byte(tt.out), nil)
-			if err != nil {
-				t.Fatal(err)
-			}
-			golden, err := g.Format()
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			if err := f.AddRequire(tt.path, tt.vers); err != nil {
-				t.Fatal(err)
-			}
-			out, err := f.Format()
-			if err != nil {
-				t.Fatal(err)
-			}
-			if !bytes.Equal(out, golden) {
-				t.Errorf("have:\n%s\nwant:\n%s", out, golden)
-			}
-		})
-	}
-}
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/block.golden b/libgo/go/cmd/go/internal/modfile/testdata/block.golden
deleted file mode 100644
index 4aa2d63..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/block.golden
+++ /dev/null
@@ -1,29 +0,0 @@
-// comment
-x "y" z
-
-// block
-block ( // block-eol
-	// x-before-line
-
-	"x" ( y // x-eol
-	"x1"
-	"x2"
-	// line
-	"x3"
-	"x4"
-
-	"x5"
-
-	// y-line
-	"y" //  y-eol
-
-	"z" // z-eol
-) // block-eol2
-
-block2 (
-	x
-	y
-	z
-)
-
-// eof
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/block.in b/libgo/go/cmd/go/internal/modfile/testdata/block.in
deleted file mode 100644
index 1dfae65..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/block.in
+++ /dev/null
@@ -1,29 +0,0 @@
-// comment
-x "y" z
-
-// block
-block ( // block-eol
-	// x-before-line
-	
-	"x" ( y // x-eol
-	"x1"
-	"x2"
-	// line
-	"x3"
-	"x4"
-	
-	"x5"
-	
-	// y-line
-	"y" //  y-eol
-	
-	"z" // z-eol
-) // block-eol2
-
-
-block2 (x
-	y
-	z
-)
-
-// eof
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/comment.golden b/libgo/go/cmd/go/internal/modfile/testdata/comment.golden
deleted file mode 100644
index 75f3b84..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/comment.golden
+++ /dev/null
@@ -1,10 +0,0 @@
-// comment
-module "x" // eol
-
-// mid comment
-
-// comment 2
-// comment 2 line 2
-module "y" // eoy
-
-// comment 3
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/comment.in b/libgo/go/cmd/go/internal/modfile/testdata/comment.in
deleted file mode 100644
index bfc2492..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/comment.in
+++ /dev/null
@@ -1,8 +0,0 @@
-// comment
-module "x" // eol
-// mid comment
-
-// comment 2
-// comment 2 line 2
-module "y" // eoy
-// comment 3
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/empty.golden b/libgo/go/cmd/go/internal/modfile/testdata/empty.golden
deleted file mode 100644
index e69de29..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/empty.golden
+++ /dev/null
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/empty.in b/libgo/go/cmd/go/internal/modfile/testdata/empty.in
deleted file mode 100644
index e69de29..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/empty.in
+++ /dev/null
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/gopkg.in.golden b/libgo/go/cmd/go/internal/modfile/testdata/gopkg.in.golden
deleted file mode 100644
index 41669b3..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/gopkg.in.golden
+++ /dev/null
@@ -1,6 +0,0 @@
-module x
-
-require (
-	gopkg.in/mgo.v2 v2.0.0-20160818020120-3f83fa500528
-	gopkg.in/yaml.v2 v2.2.1
-)
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/module.golden b/libgo/go/cmd/go/internal/modfile/testdata/module.golden
deleted file mode 100644
index 78ba943..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/module.golden
+++ /dev/null
@@ -1 +0,0 @@
-module abc
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/module.in b/libgo/go/cmd/go/internal/modfile/testdata/module.in
deleted file mode 100644
index 08f3836..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/module.in
+++ /dev/null
@@ -1 +0,0 @@
-module "abc"
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/replace.golden b/libgo/go/cmd/go/internal/modfile/testdata/replace.golden
deleted file mode 100644
index 5d6abcf..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/replace.golden
+++ /dev/null
@@ -1,5 +0,0 @@
-module abc
-
-replace xyz v1.2.3 => /tmp/z
-
-replace xyz v1.3.4 => my/xyz v1.3.4-me
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/replace.in b/libgo/go/cmd/go/internal/modfile/testdata/replace.in
deleted file mode 100644
index 6852499..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/replace.in
+++ /dev/null
@@ -1,5 +0,0 @@
-module "abc"
-
-replace "xyz" v1.2.3 => "/tmp/z"
-
-replace "xyz" v1.3.4 => "my/xyz" v1.3.4-me
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/replace2.golden b/libgo/go/cmd/go/internal/modfile/testdata/replace2.golden
deleted file mode 100644
index e1d9c72..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/replace2.golden
+++ /dev/null
@@ -1,10 +0,0 @@
-module abc
-
-replace (
-	xyz v1.2.3 => /tmp/z
-	xyz v1.3.4 => my/xyz v1.3.4-me
-	xyz v1.4.5 => "/tmp/my dir"
-	xyz v1.5.6 => my/xyz v1.5.6
-
-	xyz => my/other/xyz v1.5.4
-)
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/replace2.in b/libgo/go/cmd/go/internal/modfile/testdata/replace2.in
deleted file mode 100644
index 7864698..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/replace2.in
+++ /dev/null
@@ -1,10 +0,0 @@
-module "abc"
-
-replace (
-	"xyz" v1.2.3 => "/tmp/z"
-	"xyz" v1.3.4 => "my/xyz" "v1.3.4-me"
-	xyz "v1.4.5" => "/tmp/my dir"
-	xyz v1.5.6 => my/xyz v1.5.6
-
-	xyz => my/other/xyz v1.5.4
-)
diff --git a/libgo/go/cmd/go/internal/modfile/testdata/rule1.golden b/libgo/go/cmd/go/internal/modfile/testdata/rule1.golden
deleted file mode 100644
index 8a5c725..0000000
--- a/libgo/go/cmd/go/internal/modfile/testdata/rule1.golden
+++ /dev/null
@@ -1,7 +0,0 @@
-module "x"
-
-module "y"
-
-require "x"
-
-require x
diff --git a/libgo/go/cmd/go/internal/modget/get.go b/libgo/go/cmd/go/internal/modget/get.go
index 1cae311..2a0f634 100644
--- a/libgo/go/cmd/go/internal/modget/get.go
+++ b/libgo/go/cmd/go/internal/modget/get.go
@@ -6,18 +6,6 @@
 package modget
 
 import (
-	"cmd/go/internal/base"
-	"cmd/go/internal/cfg"
-	"cmd/go/internal/get"
-	"cmd/go/internal/imports"
-	"cmd/go/internal/load"
-	"cmd/go/internal/modload"
-	"cmd/go/internal/module"
-	"cmd/go/internal/mvs"
-	"cmd/go/internal/par"
-	"cmd/go/internal/search"
-	"cmd/go/internal/semver"
-	"cmd/go/internal/work"
 	"errors"
 	"fmt"
 	"os"
@@ -25,6 +13,19 @@
 	"sort"
 	"strings"
 	"sync"
+
+	"cmd/go/internal/base"
+	"cmd/go/internal/get"
+	"cmd/go/internal/imports"
+	"cmd/go/internal/load"
+	"cmd/go/internal/modload"
+	"cmd/go/internal/mvs"
+	"cmd/go/internal/par"
+	"cmd/go/internal/search"
+	"cmd/go/internal/work"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 var CmdGet = &base.Command{
@@ -199,7 +200,7 @@
 func (v *upgradeFlag) String() string { return "" }
 
 func init() {
-	work.AddBuildFlags(CmdGet)
+	work.AddBuildFlags(CmdGet, work.OmitModFlag)
 	CmdGet.Run = runGet // break init loop
 	CmdGet.Flag.BoolVar(&get.Insecure, "insecure", get.Insecure, "")
 	CmdGet.Flag.Var(&getU, "u", "")
@@ -256,11 +257,6 @@
 }
 
 func runGet(cmd *base.Command, args []string) {
-	// -mod=readonly has no effect on "go get".
-	if cfg.BuildMod == "readonly" {
-		cfg.BuildMod = ""
-	}
-
 	switch getU {
 	case "", "upgrade", "patch":
 		// ok
@@ -278,10 +274,6 @@
 	}
 	modload.LoadTests = *getT
 
-	if cfg.BuildMod == "vendor" {
-		base.Fatalf("go get: disabled by -mod=%s", cfg.BuildMod)
-	}
-
 	buildList := modload.LoadBuildList()
 	buildList = buildList[:len(buildList):len(buildList)] // copy on append
 	versionByPath := make(map[string]string)
@@ -294,6 +286,10 @@
 	// what was requested.
 	modload.DisallowWriteGoMod()
 
+	// Allow looking up modules for import paths outside of a module.
+	// 'go get' is expected to do this, unlike other commands.
+	modload.AllowMissingModuleImports()
+
 	// Parse command-line arguments and report errors. The command-line
 	// arguments are of the form path@version or simply path, with implicit
 	// @upgrade. path@none is "downgrade away".
@@ -364,6 +360,10 @@
 			// upgrade golang.org/x/tools.
 
 		case path == "all":
+			// If there is no main module, "all" is not meaningful.
+			if !modload.HasModRoot() {
+				base.Errorf(`go get %s: cannot match "all": working directory is not part of a module`, arg)
+			}
 			// Don't query modules until we load packages. We'll automatically
 			// look up any missing modules.
 
@@ -372,13 +372,15 @@
 			continue
 
 		default:
-			// The argument is a package path.
-			if pkgs := modload.TargetPackages(path); len(pkgs) != 0 {
-				// The path is in the main module. Nothing to query.
-				if vers != "upgrade" && vers != "patch" {
-					base.Errorf("go get %s: can't request explicit version of path in main module", arg)
+			// The argument is a package or module path.
+			if modload.HasModRoot() {
+				if pkgs := modload.TargetPackages(path); len(pkgs) != 0 {
+					// The path is in the main module. Nothing to query.
+					if vers != "upgrade" && vers != "patch" {
+						base.Errorf("go get %s: can't request explicit version of path in main module", arg)
+					}
+					continue
 				}
-				continue
 			}
 
 			first := path
@@ -452,10 +454,13 @@
 	// This includes explicitly requested modules that don't have a root package
 	// and modules with a target version of "none".
 	var wg sync.WaitGroup
+	var modOnlyMu sync.Mutex
 	modOnly := make(map[string]*query)
 	for _, q := range queries {
 		if q.m.Version == "none" {
+			modOnlyMu.Lock()
 			modOnly[q.m.Path] = q
+			modOnlyMu.Unlock()
 			continue
 		}
 		if q.path == q.m.Path {
@@ -464,7 +469,9 @@
 				if hasPkg, err := modload.ModuleHasRootPackage(q.m); err != nil {
 					base.Errorf("go get: %v", err)
 				} else if !hasPkg {
+					modOnlyMu.Lock()
 					modOnly[q.m.Path] = q
+					modOnlyMu.Unlock()
 				}
 				wg.Done()
 			}(q)
@@ -763,6 +770,9 @@
 
 		info, err := modload.Query(path, vers, prevM.Version, modload.Allowed)
 		if err == nil {
+			if info.Version != vers && info.Version != prevM.Version {
+				logOncef("go: %s %s => %s", path, vers, info.Version)
+			}
 			return module.Version{Path: path, Version: info.Version}, nil
 		}
 
@@ -791,6 +801,9 @@
 		if !strings.Contains(path, "...") {
 			var modErr *modload.PackageNotInModuleError
 			if errors.As(err, &modErr) && modErr.Mod.Path == path {
+				if modErr.Mod.Version != vers {
+					logOncef("go: %s %s => %s", path, vers, modErr.Mod.Version)
+				}
 				return modErr.Mod, nil
 			}
 		}
@@ -798,7 +811,13 @@
 		return module.Version{}, err
 	}
 
-	return results[0].Mod, nil
+	m := results[0].Mod
+	if m.Path != path {
+		logOncef("go: found %s in %s %s", path, m.Path, m.Version)
+	} else if m.Version != vers {
+		logOncef("go: %s %s => %s", path, vers, m.Version)
+	}
+	return m, nil
 }
 
 // An upgrader adapts an underlying mvs.Reqs to apply an
@@ -955,6 +974,9 @@
 		return m, nil
 	}
 
+	if info.Version != m.Version {
+		logOncef("go: %s %s => %s", m.Path, getU, info.Version)
+	}
 	return module.Version{Path: m.Path, Version: info.Version}, nil
 }
 
@@ -983,3 +1005,12 @@
 	}
 	return r.Reqs.Required(mod)
 }
+
+var loggedLines sync.Map
+
+func logOncef(format string, args ...interface{}) {
+	msg := fmt.Sprintf(format, args...)
+	if _, dup := loggedLines.LoadOrStore(msg, true); !dup {
+		fmt.Fprintln(os.Stderr, msg)
+	}
+}
diff --git a/libgo/go/cmd/go/internal/modload/build.go b/libgo/go/cmd/go/internal/modload/build.go
index 7cbdef1..292fd45 100644
--- a/libgo/go/cmd/go/internal/modload/build.go
+++ b/libgo/go/cmd/go/internal/modload/build.go
@@ -6,13 +6,6 @@
 
 import (
 	"bytes"
-	"cmd/go/internal/base"
-	"cmd/go/internal/cfg"
-	"cmd/go/internal/modfetch"
-	"cmd/go/internal/modinfo"
-	"cmd/go/internal/module"
-	"cmd/go/internal/search"
-	"cmd/go/internal/semver"
 	"encoding/hex"
 	"fmt"
 	"internal/goroot"
@@ -20,6 +13,15 @@
 	"path/filepath"
 	"runtime/debug"
 	"strings"
+
+	"cmd/go/internal/base"
+	"cmd/go/internal/cfg"
+	"cmd/go/internal/modfetch"
+	"cmd/go/internal/modinfo"
+	"cmd/go/internal/search"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 var (
@@ -43,11 +45,19 @@
 	return ""
 }
 
+// PackageModuleInfo returns information about the module that provides
+// a given package. If modules are not enabled or if the package is in the
+// standard library or if the package was not successfully loaded with
+// ImportPaths or a similar loading function, nil is returned.
 func PackageModuleInfo(pkgpath string) *modinfo.ModulePublic {
 	if isStandardImportPath(pkgpath) || !Enabled() {
 		return nil
 	}
-	return moduleInfo(findModule(pkgpath, pkgpath), true)
+	m, ok := findModule(pkgpath)
+	if !ok {
+		return nil
+	}
+	return moduleInfo(m, true)
 }
 
 func ModuleInfo(path string) *modinfo.ModulePublic {
@@ -119,13 +129,8 @@
 		info.GoVersion = loaded.goVersion[m.Path]
 	}
 
-	if cfg.BuildMod == "vendor" {
-		info.Dir = filepath.Join(ModRoot(), "vendor", m.Path)
-		return info
-	}
-
-	// complete fills in the extra fields in m.
-	complete := func(m *modinfo.ModulePublic) {
+	// completeFromModCache fills in the extra fields in m using the module cache.
+	completeFromModCache := func(m *modinfo.ModulePublic) {
 		if m.Version != "" {
 			if q, err := Query(m.Path, m.Version, "", nil); err != nil {
 				m.Error = &modinfo.ModuleError{Err: err.Error()}
@@ -151,13 +156,21 @@
 	}
 
 	if !fromBuildList {
-		complete(info)
+		completeFromModCache(info) // Will set m.Error in vendor mode.
 		return info
 	}
 
 	r := Replacement(m)
 	if r.Path == "" {
-		complete(info)
+		if cfg.BuildMod == "vendor" {
+			// It's tempting to fill in the "Dir" field to point within the vendor
+			// directory, but that would be misleading: the vendor directory contains
+			// a flattened package tree, not complete modules, and it can even
+			// interleave packages from different modules if one module path is a
+			// prefix of the other.
+		} else {
+			completeFromModCache(info)
+		}
 		return info
 	}
 
@@ -176,23 +189,29 @@
 		} else {
 			info.Replace.Dir = filepath.Join(ModRoot(), r.Path)
 		}
+		info.Replace.GoMod = filepath.Join(info.Replace.Dir, "go.mod")
 	}
-	complete(info.Replace)
-	info.Dir = info.Replace.Dir
-	info.GoMod = filepath.Join(info.Dir, "go.mod")
+	if cfg.BuildMod != "vendor" {
+		completeFromModCache(info.Replace)
+		info.Dir = info.Replace.Dir
+		info.GoMod = info.Replace.GoMod
+	}
 	return info
 }
 
+// PackageBuildInfo returns a string containing module version information
+// for modules providing packages named by path and deps. path and deps must
+// name packages that were resolved successfully with ImportPaths or one of
+// the Load functions.
 func PackageBuildInfo(path string, deps []string) string {
 	if isStandardImportPath(path) || !Enabled() {
 		return ""
 	}
-
-	target := findModule(path, path)
+	target := mustFindModule(path, path)
 	mdeps := make(map[module.Version]bool)
 	for _, dep := range deps {
 		if !isStandardImportPath(dep) {
-			mdeps[findModule(path, dep)] = true
+			mdeps[mustFindModule(path, dep)] = true
 		}
 	}
 	var mods []module.Version
@@ -227,9 +246,12 @@
 	return buf.String()
 }
 
-// findModule returns the module containing the package at path,
-// needed to build the package at target.
-func findModule(target, path string) module.Version {
+// mustFindModule is like findModule, but it calls base.Fatalf if the
+// module can't be found.
+//
+// TODO(jayconrod): remove this. Callers should use findModule and return
+// errors instead of relying on base.Fatalf.
+func mustFindModule(target, path string) module.Version {
 	pkg, ok := loaded.pkgCache.Get(path).(*loadPkg)
 	if ok {
 		if pkg.err != nil {
@@ -249,17 +271,49 @@
 	panic("unreachable")
 }
 
-func ModInfoProg(info string) []byte {
+// findModule searches for the module that contains the package at path.
+// If the package was loaded with ImportPaths or one of the other loading
+// functions, its containing module and true are returned. Otherwise,
+// module.Version{} and false are returend.
+func findModule(path string) (module.Version, bool) {
+	if pkg, ok := loaded.pkgCache.Get(path).(*loadPkg); ok {
+		return pkg.mod, pkg.mod != module.Version{}
+	}
+	if path == "command-line-arguments" {
+		return Target, true
+	}
+	return module.Version{}, false
+}
+
+func ModInfoProg(info string, isgccgo bool) []byte {
 	// Inject a variable with the debug information as runtime.modinfo,
 	// but compile it in package main so that it is specific to the binary.
 	// The variable must be a literal so that it will have the correct value
 	// before the initializer for package main runs.
 	//
-	// The runtime startup code refers to the variable, which keeps it live in all binaries.
-	return []byte(fmt.Sprintf(`package main
+	// The runtime startup code refers to the variable, which keeps it live
+	// in all binaries.
+	//
+	// Note: we use an alternate recipe below for gccgo (based on an
+	// init function) due to the fact that gccgo does not support
+	// applying a "//go:linkname" directive to a variable. This has
+	// drawbacks in that other packages may want to look at the module
+	// info in their init functions (see issue 29628), which won't
+	// work for gccgo. See also issue 30344.
+
+	if !isgccgo {
+		return []byte(fmt.Sprintf(`package main
 import _ "unsafe"
 //go:linkname __set_modinfo__ runtime.setmodinfo
 func __set_modinfo__(string)
 func init() { __set_modinfo__(%q) }
 	`, string(infoStart)+info+string(infoEnd)))
+	} else {
+		return []byte(fmt.Sprintf(`package main
+import _ "unsafe"
+//go:linkname __set_debug_modinfo__ runtime.setmodinfo
+func __set_debug_modinfo__(string)
+func init() { __set_debug_modinfo__(%q) }
+	`, string(infoStart)+info+string(infoEnd)))
+	}
 }
diff --git a/libgo/go/cmd/go/internal/modload/help.go b/libgo/go/cmd/go/internal/modload/help.go
index 1927c1c..b47f3de 100644
--- a/libgo/go/cmd/go/internal/modload/help.go
+++ b/libgo/go/cmd/go/internal/modload/help.go
@@ -179,6 +179,9 @@
 directory holds the correct copies of dependencies and ignores
 the dependency descriptions in go.mod.
 
+If invoked with -mod=mod, the go command loads modules from the module cache
+even if there is a vendor directory present.
+
 Pseudo-versions
 
 The go.mod file and the go command more generally use semantic versions as
diff --git a/libgo/go/cmd/go/internal/modload/import.go b/libgo/go/cmd/go/internal/modload/import.go
index 70add35..9ae2900 100644
--- a/libgo/go/cmd/go/internal/modload/import.go
+++ b/libgo/go/cmd/go/internal/modload/import.go
@@ -5,7 +5,6 @@
 package modload
 
 import (
-	"bytes"
 	"errors"
 	"fmt"
 	"go/build"
@@ -17,31 +16,81 @@
 	"time"
 
 	"cmd/go/internal/cfg"
+	"cmd/go/internal/load"
 	"cmd/go/internal/modfetch"
-	"cmd/go/internal/module"
 	"cmd/go/internal/par"
 	"cmd/go/internal/search"
-	"cmd/go/internal/semver"
-	"cmd/go/internal/str"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 type ImportMissingError struct {
-	ImportPath string
-	Module     module.Version
+	Path     string
+	Module   module.Version
+	QueryErr error
 
 	// newMissingVersion is set to a newer version of Module if one is present
 	// in the build list. When set, we can't automatically upgrade.
 	newMissingVersion string
 }
 
+var _ load.ImportPathError = (*ImportMissingError)(nil)
+
 func (e *ImportMissingError) Error() string {
 	if e.Module.Path == "" {
-		if str.HasPathPrefix(e.ImportPath, "cmd") {
-			return fmt.Sprintf("package %s is not in GOROOT (%s)", e.ImportPath, filepath.Join(cfg.GOROOT, "src", e.ImportPath))
+		if search.IsStandardImportPath(e.Path) {
+			return fmt.Sprintf("package %s is not in GOROOT (%s)", e.Path, filepath.Join(cfg.GOROOT, "src", e.Path))
 		}
-		return "cannot find module providing package " + e.ImportPath
+		if e.QueryErr != nil {
+			return fmt.Sprintf("cannot find module providing package %s: %v", e.Path, e.QueryErr)
+		}
+		return "cannot find module providing package " + e.Path
 	}
-	return "missing module for import: " + e.Module.Path + "@" + e.Module.Version + " provides " + e.ImportPath
+	return fmt.Sprintf("missing module for import: %s@%s provides %s", e.Module.Path, e.Module.Version, e.Path)
+}
+
+func (e *ImportMissingError) Unwrap() error {
+	return e.QueryErr
+}
+
+func (e *ImportMissingError) ImportPath() string {
+	return e.Path
+}
+
+// An AmbiguousImportError indicates an import of a package found in multiple
+// modules in the build list, or found in both the main module and its vendor
+// directory.
+type AmbiguousImportError struct {
+	ImportPath string
+	Dirs       []string
+	Modules    []module.Version // Either empty or 1:1 with Dirs.
+}
+
+func (e *AmbiguousImportError) Error() string {
+	locType := "modules"
+	if len(e.Modules) == 0 {
+		locType = "directories"
+	}
+
+	var buf strings.Builder
+	fmt.Fprintf(&buf, "ambiguous import: found package %s in multiple %s:", e.ImportPath, locType)
+
+	for i, dir := range e.Dirs {
+		buf.WriteString("\n\t")
+		if i < len(e.Modules) {
+			m := e.Modules[i]
+			buf.WriteString(m.Path)
+			if m.Version != "" {
+				fmt.Fprintf(&buf, " %s", m.Version)
+			}
+			fmt.Fprintf(&buf, " (%s)", dir)
+		} else {
+			buf.WriteString(dir)
+		}
+	}
+
+	return buf.String()
 }
 
 // Import finds the module and directory in the build list
@@ -68,8 +117,8 @@
 	}
 
 	// Is the package in the standard library?
-	if search.IsStandardImportPath(path) &&
-		goroot.IsStandardPackage(cfg.GOROOT, cfg.BuildContext.Compiler, path) {
+	pathIsStd := search.IsStandardImportPath(path)
+	if pathIsStd && goroot.IsStandardPackage(cfg.GOROOT, cfg.BuildContext.Compiler, path) {
 		if targetInGorootSrc {
 			if dir, ok := dirInModule(path, targetPrefix, ModRoot(), true); ok {
 				return Target, dir, nil
@@ -78,9 +127,6 @@
 		dir := filepath.Join(cfg.GOROOT, "src", path)
 		return module.Version{}, dir, nil
 	}
-	if str.HasPathPrefix(path, "cmd") {
-		return module.Version{}, "", &ImportMissingError{ImportPath: path}
-	}
 
 	// -mod=vendor is special.
 	// Everything must be in the main module or the main module's vendor directory.
@@ -88,7 +134,7 @@
 		mainDir, mainOK := dirInModule(path, targetPrefix, ModRoot(), true)
 		vendorDir, vendorOK := dirInModule(path, "", filepath.Join(ModRoot(), "vendor"), false)
 		if mainOK && vendorOK {
-			return module.Version{}, "", fmt.Errorf("ambiguous import: found %s in multiple directories:\n\t%s\n\t%s", path, mainDir, vendorDir)
+			return module.Version{}, "", &AmbiguousImportError{ImportPath: path, Dirs: []string{mainDir, vendorDir}}
 		}
 		// Prefer to return main directory if there is one,
 		// Note that we're not checking that the package exists.
@@ -97,7 +143,7 @@
 			return Target, mainDir, nil
 		}
 		readVendorList()
-		return vendorMap[path], vendorDir, nil
+		return vendorPkgModule[path], vendorDir, nil
 	}
 
 	// Check each module on the build list.
@@ -128,22 +174,26 @@
 		return mods[0], dirs[0], nil
 	}
 	if len(mods) > 0 {
-		var buf bytes.Buffer
-		fmt.Fprintf(&buf, "ambiguous import: found %s in multiple modules:", path)
-		for i, m := range mods {
-			fmt.Fprintf(&buf, "\n\t%s", m.Path)
-			if m.Version != "" {
-				fmt.Fprintf(&buf, " %s", m.Version)
-			}
-			fmt.Fprintf(&buf, " (%s)", dirs[i])
-		}
-		return module.Version{}, "", errors.New(buf.String())
+		return module.Version{}, "", &AmbiguousImportError{ImportPath: path, Dirs: dirs, Modules: mods}
 	}
 
 	// Look up module containing the package, for addition to the build list.
 	// Goal is to determine the module, download it to dir, and return m, dir, ErrMissing.
 	if cfg.BuildMod == "readonly" {
-		return module.Version{}, "", fmt.Errorf("import lookup disabled by -mod=%s", cfg.BuildMod)
+		var queryErr error
+		if !pathIsStd {
+			if cfg.BuildModReason == "" {
+				queryErr = fmt.Errorf("import lookup disabled by -mod=%s", cfg.BuildMod)
+			}
+			queryErr = fmt.Errorf("import lookup disabled by -mod=%s\n\t(%s)", cfg.BuildMod, cfg.BuildModReason)
+		}
+		return module.Version{}, "", &ImportMissingError{Path: path, QueryErr: queryErr}
+	}
+	if modRoot == "" && !allowMissingModuleImports {
+		return module.Version{}, "", &ImportMissingError{
+			Path:     path,
+			QueryErr: errors.New("working directory is not part of a module"),
+		}
 	}
 
 	// Not on build list.
@@ -187,9 +237,31 @@
 			}
 			_, ok := dirInModule(path, m.Path, root, isLocal)
 			if ok {
-				return m, "", &ImportMissingError{ImportPath: path, Module: m}
+				return m, "", &ImportMissingError{Path: path, Module: m}
 			}
 		}
+		if len(mods) > 0 && module.CheckPath(path) != nil {
+			// The package path is not valid to fetch remotely,
+			// so it can only exist if in a replaced module,
+			// and we know from the above loop that it is not.
+			return module.Version{}, "", &PackageNotInModuleError{
+				Mod:         mods[0],
+				Query:       "latest",
+				Pattern:     path,
+				Replacement: Replacement(mods[0]),
+			}
+		}
+	}
+
+	if pathIsStd {
+		// This package isn't in the standard library, isn't in any module already
+		// in the build list, and isn't in any other module that the user has
+		// shimmed in via a "replace" directive.
+		// Moreover, the import path is reserved for the standard library, so
+		// QueryPackage cannot possibly find a module containing this package.
+		//
+		// Instead of trying QueryPackage, report an ImportMissingError immediately.
+		return module.Version{}, "", &ImportMissingError{Path: path}
 	}
 
 	candidates, err := QueryPackage(path, "latest", Allowed)
@@ -197,7 +269,7 @@
 		if errors.Is(err, os.ErrNotExist) {
 			// Return "cannot find module providing package […]" instead of whatever
 			// low-level error QueryPackage produced.
-			return module.Version{}, "", &ImportMissingError{ImportPath: path}
+			return module.Version{}, "", &ImportMissingError{Path: path, QueryErr: err}
 		} else {
 			return module.Version{}, "", err
 		}
@@ -222,7 +294,7 @@
 			}
 		}
 	}
-	return m, "", &ImportMissingError{ImportPath: path, Module: m, newMissingVersion: newMissingVersion}
+	return m, "", &ImportMissingError{Path: path, Module: m, newMissingVersion: newMissingVersion}
 }
 
 // maybeInModule reports whether, syntactically,
diff --git a/libgo/go/cmd/go/internal/modload/import_test.go b/libgo/go/cmd/go/internal/modload/import_test.go
index c6ade5d..accc60e 100644
--- a/libgo/go/cmd/go/internal/modload/import_test.go
+++ b/libgo/go/cmd/go/internal/modload/import_test.go
@@ -21,7 +21,7 @@
 	},
 	{
 		path: "golang.org/x/net",
-		err:  "module golang.org/x/net@.* found, but does not contain package golang.org/x/net",
+		err:  `module golang.org/x/net@.* found \(v0.0.0-.*\), but does not contain package golang.org/x/net`,
 	},
 	{
 		path: "golang.org/x/text",
@@ -44,6 +44,10 @@
 func TestImport(t *testing.T) {
 	testenv.MustHaveExternalNetwork(t)
 	testenv.MustHaveExecPath(t, "git")
+	defer func(old bool) {
+		allowMissingModuleImports = old
+	}(allowMissingModuleImports)
+	AllowMissingModuleImports()
 
 	for _, tt := range importTests {
 		t.Run(strings.ReplaceAll(tt.path, "/", "_"), func(t *testing.T) {
diff --git a/libgo/go/cmd/go/internal/modload/init.go b/libgo/go/cmd/go/internal/modload/init.go
index 807ce8d..61cbdf2 100644
--- a/libgo/go/cmd/go/internal/modload/init.go
+++ b/libgo/go/cmd/go/internal/modload/init.go
@@ -7,6 +7,7 @@
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"go/build"
 	"internal/lazyregexp"
@@ -22,26 +23,24 @@
 	"cmd/go/internal/cache"
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/load"
+	"cmd/go/internal/lockedfile"
 	"cmd/go/internal/modconv"
 	"cmd/go/internal/modfetch"
 	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
 	"cmd/go/internal/mvs"
-	"cmd/go/internal/renameio"
 	"cmd/go/internal/search"
+
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 var (
-	cwd            string // TODO(bcmills): Is this redundant with base.Cwd?
 	mustUseModules = false
 	initialized    bool
 
-	modRoot     string
-	modFile     *modfile.File
-	modFileData []byte
-	excluded    map[module.Version]bool
-	Target      module.Version
+	modRoot string
+	Target  module.Version
 
 	// targetPrefix is the path prefix for packages in Target, without a trailing
 	// slash. For most modules, targetPrefix is just Target.Path, but the
@@ -56,8 +55,31 @@
 
 	CmdModInit   bool   // running 'go mod init'
 	CmdModModule string // module argument for 'go mod init'
+
+	allowMissingModuleImports bool
 )
 
+var modFile *modfile.File
+
+// A modFileIndex is an index of data corresponding to a modFile
+// at a specific point in time.
+type modFileIndex struct {
+	data         []byte
+	dataNeedsFix bool // true if fixVersion applied a change while parsing data
+	module       module.Version
+	goVersion    string
+	require      map[module.Version]requireMeta
+	replace      map[module.Version]module.Version
+	exclude      map[module.Version]bool
+}
+
+// index is the index of the go.mod file as of when it was last read or written.
+var index *modFileIndex
+
+type requireMeta struct {
+	indirect bool
+}
+
 // ModFile returns the parsed go.mod file.
 //
 // Note that after calling ImportPaths or LoadBuildList,
@@ -89,6 +111,9 @@
 	}
 	initialized = true
 
+	// Keep in sync with WillBeEnabled. We perform extra validation here, and
+	// there are lots of diagnostics and side effects, so we can't use
+	// WillBeEnabled directly.
 	env := cfg.Getenv("GO111MODULE")
 	switch env {
 	default:
@@ -129,18 +154,15 @@
 		os.Setenv("GIT_SSH_COMMAND", "ssh -o ControlMaster=no")
 	}
 
-	var err error
-	cwd, err = os.Getwd()
-	if err != nil {
-		base.Fatalf("go: %v", err)
-	}
-
 	if CmdModInit {
 		// Running 'go mod init': go.mod will be created in current directory.
-		modRoot = cwd
+		modRoot = base.Cwd
 	} else {
-		modRoot = findModuleRoot(cwd)
+		modRoot = findModuleRoot(base.Cwd)
 		if modRoot == "" {
+			if cfg.ModFile != "" {
+				base.Fatalf("go: cannot find main module, but -modfile was set.\n\t-modfile cannot be used to set the module root directory.")
+			}
 			if !mustUseModules {
 				// GO111MODULE is 'auto', and we can't find a module root.
 				// Stay in GOPATH mode.
@@ -156,6 +178,9 @@
 			fmt.Fprintf(os.Stderr, "go: warning: ignoring go.mod in system temp root %v\n", os.TempDir())
 		}
 	}
+	if cfg.ModFile != "" && !strings.HasSuffix(cfg.ModFile, ".mod") {
+		base.Fatalf("go: -modfile=%s: file does not have .mod extension", cfg.ModFile)
+	}
 
 	// We're in module mode. Install the hooks to make it work.
 
@@ -198,30 +223,23 @@
 	if modRoot == "" {
 		// We're in module mode, but not inside a module.
 		//
-		// If the command is 'go get' or 'go list' and all of the args are in the
-		// same existing module, we could use that module's download directory in
-		// the module cache as the module root, applying any replacements and/or
-		// exclusions specified by that module. However, that would leave us in a
-		// strange state: we want 'go get' to be consistent with 'go list', and 'go
-		// list' should be able to operate on multiple modules. Moreover, the 'get'
-		// target might specify relative file paths (e.g. in the same repository) as
-		// replacements, and we would not be able to apply those anyway: we would
-		// need to either error out or ignore just those replacements, when a build
-		// from an empty module could proceed without error.
+		// Commands like 'go build', 'go run', 'go list' have no go.mod file to
+		// read or write. They would need to find and download the latest versions
+		// of a potentially large number of modules with no way to save version
+		// information. We can succeed slowly (but not reproducibly), but that's
+		// not usually a good experience.
 		//
-		// Instead, we'll operate as though we're in some ephemeral external module,
-		// ignoring all replacements and exclusions uniformly.
-
-		// Normally we check sums using the go.sum file from the main module, but
-		// without a main module we do not have an authoritative go.sum file.
+		// Instead, we forbid resolving import paths to modules other than std and
+		// cmd. Users may still build packages specified with .go files on the
+		// command line, but they'll see an error if those files import anything
+		// outside std.
 		//
-		// TODO(bcmills): In Go 1.13, check sums when outside the main module.
+		// This can be overridden by calling AllowMissingModuleImports.
+		// For example, 'go get' does this, since it is expected to resolve paths.
 		//
-		// One possible approach is to merge the go.sum files from all of the
-		// modules we download: that doesn't protect us against bad top-level
-		// modules, but it at least ensures consistency for transitive dependencies.
+		// See golang.org/issue/32027.
 	} else {
-		modfetch.GoSumFile = filepath.Join(modRoot, "go.sum")
+		modfetch.GoSumFile = strings.TrimSuffix(ModFilePath(), ".mod") + ".sum"
 		search.SetModRoot(modRoot)
 	}
 }
@@ -237,6 +255,54 @@
 	}
 }
 
+// WillBeEnabled checks whether modules should be enabled but does not
+// initialize modules by installing hooks. If Init has already been called,
+// WillBeEnabled returns the same result as Enabled.
+//
+// This function is needed to break a cycle. The main package needs to know
+// whether modules are enabled in order to install the module or GOPATH version
+// of 'go get', but Init reads the -modfile flag in 'go get', so it shouldn't
+// be called until the command is installed and flags are parsed. Instead of
+// calling Init and Enabled, the main package can call this function.
+func WillBeEnabled() bool {
+	if modRoot != "" || mustUseModules {
+		return true
+	}
+	if initialized {
+		return false
+	}
+
+	// Keep in sync with Init. Init does extra validation and prints warnings or
+	// exits, so it can't call this function directly.
+	env := cfg.Getenv("GO111MODULE")
+	switch env {
+	case "on":
+		return true
+	case "auto", "":
+		break
+	default:
+		return false
+	}
+
+	if CmdModInit {
+		// Running 'go mod init': go.mod will be created in current directory.
+		return true
+	}
+	if modRoot := findModuleRoot(base.Cwd); modRoot == "" {
+		// GO111MODULE is 'auto', and we can't find a module root.
+		// Stay in GOPATH mode.
+		return false
+	} else if search.InDir(modRoot, os.TempDir()) == "." {
+		// If you create /tmp/go.mod for experimenting,
+		// then any tests that create work directories under /tmp
+		// will find it and get modules when they're not expecting them.
+		// It's a bit of a peculiar thing to disallow but quite mysterious
+		// when it happens. See golang.org/issue/26708.
+		return false
+	}
+	return true
+}
+
 // Enabled reports whether modules are (or must be) enabled.
 // If modules are enabled but there is no main module, Enabled returns true
 // and then the first use of module information will call die
@@ -263,6 +329,20 @@
 	return modRoot != ""
 }
 
+// ModFilePath returns the effective path of the go.mod file. Normally, this
+// "go.mod" in the directory returned by ModRoot, but the -modfile flag may
+// change its location. ModFilePath calls base.Fatalf if there is no main
+// module, even if -modfile is set.
+func ModFilePath() string {
+	if !HasModRoot() {
+		die()
+	}
+	if cfg.ModFile != "" {
+		return cfg.ModFile
+	}
+	return filepath.Join(modRoot, "go.mod")
+}
+
 // printStackInDie causes die to print a stack trace.
 //
 // It is enabled by the testgo tag, and helps to diagnose paths that
@@ -276,24 +356,25 @@
 	if cfg.Getenv("GO111MODULE") == "off" {
 		base.Fatalf("go: modules disabled by GO111MODULE=off; see 'go help modules'")
 	}
-	if cwd != "" {
-		if dir, name := findAltConfig(cwd); dir != "" {
-			rel, err := filepath.Rel(cwd, dir)
-			if err != nil {
-				rel = dir
-			}
-			cdCmd := ""
-			if rel != "." {
-				cdCmd = fmt.Sprintf("cd %s && ", rel)
-			}
-			base.Fatalf("go: cannot find main module, but found %s in %s\n\tto create a module there, run:\n\t%sgo mod init", name, dir, cdCmd)
+	if dir, name := findAltConfig(base.Cwd); dir != "" {
+		rel, err := filepath.Rel(base.Cwd, dir)
+		if err != nil {
+			rel = dir
 		}
+		cdCmd := ""
+		if rel != "." {
+			cdCmd = fmt.Sprintf("cd %s && ", rel)
+		}
+		base.Fatalf("go: cannot find main module, but found %s in %s\n\tto create a module there, run:\n\t%sgo mod init", name, dir, cdCmd)
 	}
 	base.Fatalf("go: cannot find main module; see 'go help modules'")
 }
 
 // InitMod sets Target and, if there is a main module, parses the initial build
 // list from its go.mod file, creating and populating that file if needed.
+//
+// As a side-effect, InitMod sets a default for cfg.BuildMod if it does not
+// already have an explicit value.
 func InitMod() {
 	if len(buildList) > 0 {
 		return
@@ -315,19 +396,20 @@
 		return
 	}
 
-	gomod := filepath.Join(modRoot, "go.mod")
-	data, err := renameio.ReadFile(gomod)
+	gomod := ModFilePath()
+	data, err := lockedfile.Read(gomod)
 	if err != nil {
 		base.Fatalf("go: %v", err)
 	}
 
-	f, err := modfile.Parse(gomod, data, fixVersion)
+	var fixed bool
+	f, err := modfile.Parse(gomod, data, fixVersion(&fixed))
 	if err != nil {
 		// Errors returned by modfile.Parse begin with file:line.
 		base.Fatalf("go: errors parsing go.mod:\n%s\n", err)
 	}
 	modFile = f
-	modFileData = data
+	index = indexModFile(data, f, fixed)
 
 	if len(f.Syntax.Stmt) == 0 || f.Module == nil {
 		// Empty mod file. Must add module path.
@@ -344,20 +426,77 @@
 		legacyModInit()
 	}
 
-	excluded = make(map[module.Version]bool)
-	for _, x := range f.Exclude {
-		excluded[x.Mod] = true
-	}
 	modFileToBuildList()
-	stdVendorMode()
-	WriteGoMod()
+	setDefaultBuildMod()
+	if cfg.BuildMod == "vendor" {
+		readVendorList()
+		checkVendorConsistency()
+	} else {
+		// TODO(golang.org/issue/33326): if cfg.BuildMod != "readonly"?
+		WriteGoMod()
+	}
+}
+
+// fixVersion returns a modfile.VersionFixer implemented using the Query function.
+//
+// It resolves commit hashes and branch names to versions,
+// canonicalizes versions that appeared in early vgo drafts,
+// and does nothing for versions that already appear to be canonical.
+//
+// The VersionFixer sets 'fixed' if it ever returns a non-canonical version.
+func fixVersion(fixed *bool) modfile.VersionFixer {
+	return func(path, vers string) (resolved string, err error) {
+		defer func() {
+			if err == nil && resolved != vers {
+				*fixed = true
+			}
+		}()
+
+		// Special case: remove the old -gopkgin- hack.
+		if strings.HasPrefix(path, "gopkg.in/") && strings.Contains(vers, "-gopkgin-") {
+			vers = vers[strings.Index(vers, "-gopkgin-")+len("-gopkgin-"):]
+		}
+
+		// fixVersion is called speculatively on every
+		// module, version pair from every go.mod file.
+		// Avoid the query if it looks OK.
+		_, pathMajor, ok := module.SplitPathVersion(path)
+		if !ok {
+			return "", &module.ModuleError{
+				Path: path,
+				Err: &module.InvalidVersionError{
+					Version: vers,
+					Err:     fmt.Errorf("malformed module path %q", path),
+				},
+			}
+		}
+		if vers != "" && module.CanonicalVersion(vers) == vers {
+			if err := module.CheckPathMajor(vers, pathMajor); err == nil {
+				return vers, nil
+			}
+		}
+
+		info, err := Query(path, vers, "", nil)
+		if err != nil {
+			return "", err
+		}
+		return info.Version, nil
+	}
+}
+
+// AllowMissingModuleImports allows import paths to be resolved to modules
+// when there is no module root. Normally, this is forbidden because it's slow
+// and there's no way to make the result reproducible, but some commands
+// like 'go get' are expected to do this.
+func AllowMissingModuleImports() {
+	allowMissingModuleImports = true
 }
 
 // modFileToBuildList initializes buildList from the modFile.
 func modFileToBuildList() {
 	Target = modFile.Module.Mod
 	targetPrefix = Target.Path
-	if rel := search.InDir(cwd, cfg.GOROOTsrc); rel != "" {
+	if rel := search.InDir(base.Cwd, cfg.GOROOTsrc); rel != "" {
 		targetInGorootSrc = true
 		if Target.Path == "std" {
 			targetPrefix = ""
@@ -371,45 +510,144 @@
 	buildList = list
 }
 
-// stdVendorMode applies inside $GOROOT/src.
-// It checks that the go.mod matches vendor/modules.txt
-// and then sets -mod=vendor unless this is a command
-// that has to do explicitly with modules.
-func stdVendorMode() {
-	if !targetInGorootSrc {
+// setDefaultBuildMod sets a default value for cfg.BuildMod
+// if it is currently empty.
+func setDefaultBuildMod() {
+	if cfg.BuildMod != "" {
+		// Don't override an explicit '-mod=' argument.
 		return
 	}
+	cfg.BuildMod = "mod"
 	if cfg.CmdName == "get" || strings.HasPrefix(cfg.CmdName, "mod ") {
+		// Don't set -mod implicitly for commands whose purpose is to
+		// manipulate the build list.
+		return
+	}
+	if modRoot == "" {
 		return
 	}
 
-	readVendorList()
-BuildList:
-	for _, m := range buildList {
-		if m.Path == "cmd" || m.Path == "std" {
-			continue
-		}
-		for _, v := range vendorList {
-			if m.Path == v.Path {
-				if m.Version != v.Version {
-					base.Fatalf("go: inconsistent vendoring in %s:\n"+
-						"\tgo.mod requires %s %s but vendor/modules.txt has %s.\n"+
-						"\trun 'go mod tidy; go mod vendor' to sync",
-						modRoot, m.Path, m.Version, v.Version)
-				}
-				continue BuildList
+	if fi, err := os.Stat(filepath.Join(modRoot, "vendor")); err == nil && fi.IsDir() {
+		modGo := "unspecified"
+		if index.goVersion != "" {
+			if semver.Compare("v"+index.goVersion, "v1.14") >= 0 {
+				// The Go version is at least 1.14, and a vendor directory exists.
+				// Set -mod=vendor by default.
+				cfg.BuildMod = "vendor"
+				cfg.BuildModReason = "Go version in go.mod is at least 1.14 and vendor directory exists."
+				return
+			} else {
+				modGo = index.goVersion
 			}
 		}
-		base.Fatalf("go: inconsistent vendoring in %s:\n"+
-			"\tgo.mod requires %s %s but vendor/modules.txt does not include it.\n"+
-			"\trun 'go mod tidy; go mod vendor' to sync", modRoot, m.Path, m.Version)
+
+		// Since a vendor directory exists, we have a non-trivial reason for
+		// choosing -mod=mod, although it probably won't be used for anything.
+		// Record the reason anyway for consistency.
+		// It may be overridden if we switch to mod=readonly below.
+		cfg.BuildModReason = fmt.Sprintf("Go version in go.mod is %s.", modGo)
 	}
-	cfg.BuildMod = "vendor"
+
+	p := ModFilePath()
+	if fi, err := os.Stat(p); err == nil && !hasWritePerm(p, fi) {
+		cfg.BuildMod = "readonly"
+		cfg.BuildModReason = "go.mod file is read-only."
+	}
+}
+
+// checkVendorConsistency verifies that the vendor/modules.txt file matches (if
+// go 1.14) or at least does not contradict (go 1.13 or earlier) the
+// requirements and replacements listed in the main module's go.mod file.
+func checkVendorConsistency() {
+	readVendorList()
+
+	pre114 := false
+	if modFile.Go == nil || semver.Compare("v"+modFile.Go.Version, "v1.14") < 0 {
+		// Go versions before 1.14 did not include enough information in
+		// vendor/modules.txt to check for consistency.
+		// If we know that we're on an earlier version, relax the consistency check.
+		pre114 = true
+	}
+
+	vendErrors := new(strings.Builder)
+	vendErrorf := func(mod module.Version, format string, args ...interface{}) {
+		detail := fmt.Sprintf(format, args...)
+		if mod.Version == "" {
+			fmt.Fprintf(vendErrors, "\n\t%s: %s", mod.Path, detail)
+		} else {
+			fmt.Fprintf(vendErrors, "\n\t%s@%s: %s", mod.Path, mod.Version, detail)
+		}
+	}
+
+	for _, r := range modFile.Require {
+		if !vendorMeta[r.Mod].Explicit {
+			if pre114 {
+				// Before 1.14, modules.txt did not indicate whether modules were listed
+				// explicitly in the main module's go.mod file.
+				// However, we can at least detect a version mismatch if packages were
+				// vendored from a non-matching version.
+				if vv, ok := vendorVersion[r.Mod.Path]; ok && vv != r.Mod.Version {
+					vendErrorf(r.Mod, fmt.Sprintf("is explicitly required in go.mod, but vendor/modules.txt indicates %s@%s", r.Mod.Path, vv))
+				}
+			} else {
+				vendErrorf(r.Mod, "is explicitly required in go.mod, but not marked as explicit in vendor/modules.txt")
+			}
+		}
+	}
+
+	describe := func(m module.Version) string {
+		if m.Version == "" {
+			return m.Path
+		}
+		return m.Path + "@" + m.Version
+	}
+
+	// We need to verify *all* replacements that occur in modfile: even if they
+	// don't directly apply to any module in the vendor list, the replacement
+	// go.mod file can affect the selected versions of other (transitive)
+	// dependencies
+	for _, r := range modFile.Replace {
+		vr := vendorMeta[r.Old].Replacement
+		if vr == (module.Version{}) {
+			if pre114 && (r.Old.Version == "" || vendorVersion[r.Old.Path] != r.Old.Version) {
+				// Before 1.14, modules.txt omitted wildcard replacements and
+				// replacements for modules that did not have any packages to vendor.
+			} else {
+				vendErrorf(r.Old, "is replaced in go.mod, but not marked as replaced in vendor/modules.txt")
+			}
+		} else if vr != r.New {
+			vendErrorf(r.Old, "is replaced by %s in go.mod, but marked as replaced by %s in vendor/modules.txt", describe(r.New), describe(vr))
+		}
+	}
+
+	for _, mod := range vendorList {
+		meta := vendorMeta[mod]
+		if meta.Explicit {
+			if _, inGoMod := index.require[mod]; !inGoMod {
+				vendErrorf(mod, "is marked as explicit in vendor/modules.txt, but not explicitly required in go.mod")
+			}
+		}
+	}
+
+	for _, mod := range vendorReplaced {
+		r := Replacement(mod)
+		if r == (module.Version{}) {
+			vendErrorf(mod, "is marked as replaced in vendor/modules.txt, but not replaced in go.mod")
+			continue
+		}
+		if meta := vendorMeta[mod]; r != meta.Replacement {
+			vendErrorf(mod, "is marked as replaced by %s in vendor/modules.txt, but replaced by %s in go.mod", describe(meta.Replacement), describe(r))
+		}
+	}
+
+	if vendErrors.Len() > 0 {
+		base.Fatalf("go: inconsistent vendoring in %s:%s\n\nrun 'go mod vendor' to sync, or use -mod=mod or -mod=readonly to ignore the vendor directory", modRoot, vendErrors)
+	}
 }
 
 // Allowed reports whether module m is allowed (not excluded) by the main module's go.mod.
 func Allowed(m module.Version) bool {
-	return !excluded[m]
+	return index == nil || !index.exclude[m]
 }
 
 func legacyModInit() {
@@ -478,6 +716,9 @@
 }
 
 func findModuleRoot(dir string) (root string) {
+	if dir == "" {
+		panic("dir not set")
+	}
 	dir = filepath.Clean(dir)
 
 	// Look for enclosing go.mod.
@@ -495,6 +736,9 @@
 }
 
 func findAltConfig(dir string) (root, name string) {
+	if dir == "" {
+		panic("dir not set")
+	}
 	dir = filepath.Clean(dir)
 	for {
 		for _, name := range altConfigs {
@@ -625,16 +869,17 @@
 	allowWriteGoMod = true
 }
 
-// MinReqs returns a Reqs with minimal dependencies of Target,
+// MinReqs returns a Reqs with minimal additional dependencies of Target,
 // as will be written to go.mod.
 func MinReqs() mvs.Reqs {
-	var direct []string
+	var retain []string
 	for _, m := range buildList[1:] {
-		if loaded.direct[m.Path] {
-			direct = append(direct, m.Path)
+		_, explicit := index.require[m]
+		if explicit || loaded.direct[m.Path] {
+			retain = append(retain, m.Path)
 		}
 	}
-	min, err := mvs.Req(Target, buildList, direct, Reqs())
+	min, err := mvs.Req(Target, retain, Reqs())
 	if err != nil {
 		base.Fatalf("go: %v", err)
 	}
@@ -655,7 +900,9 @@
 		return
 	}
 
-	addGoStmt()
+	if cfg.BuildMod != "readonly" {
+		addGoStmt()
+	}
 
 	if loaded != nil {
 		reqs := MinReqs()
@@ -672,87 +919,177 @@
 		}
 		modFile.SetRequire(list)
 	}
+	modFile.Cleanup()
 
-	modFile.Cleanup() // clean file after edits
-	new, err := modFile.Format()
-	if err != nil {
-		base.Fatalf("go: %v", err)
-	}
-
-	dirty := !bytes.Equal(new, modFileData)
+	dirty := index.modFileIsDirty(modFile)
 	if dirty && cfg.BuildMod == "readonly" {
 		// If we're about to fail due to -mod=readonly,
 		// prefer to report a dirty go.mod over a dirty go.sum
-		base.Fatalf("go: updates to go.mod needed, disabled by -mod=readonly")
+		if cfg.BuildModReason != "" {
+			base.Fatalf("go: updates to go.mod needed, disabled by -mod=readonly\n\t(%s)", cfg.BuildModReason)
+		} else {
+			base.Fatalf("go: updates to go.mod needed, disabled by -mod=readonly")
+		}
 	}
 	// Always update go.sum, even if we didn't change go.mod: we may have
 	// downloaded modules that we didn't have before.
 	modfetch.WriteGoSum()
 
-	if !dirty {
-		// We don't need to modify go.mod from what we read previously.
+	if !dirty && cfg.CmdName != "mod tidy" {
+		// The go.mod file has the same semantic content that it had before
+		// (but not necessarily the same exact bytes).
 		// Ignore any intervening edits.
 		return
 	}
 
-	unlock := modfetch.SideLock()
-	defer unlock()
+	new, err := modFile.Format()
+	if err != nil {
+		base.Fatalf("go: %v", err)
+	}
+	defer func() {
+		// At this point we have determined to make the go.mod file on disk equal to new.
+		index = indexModFile(new, modFile, false)
+	}()
 
-	file := filepath.Join(modRoot, "go.mod")
-	old, err := renameio.ReadFile(file)
-	if !bytes.Equal(old, modFileData) {
+	// Make a best-effort attempt to acquire the side lock, only to exclude
+	// previous versions of the 'go' command from making simultaneous edits.
+	if unlock, err := modfetch.SideLock(); err == nil {
+		defer unlock()
+	}
+
+	errNoChange := errors.New("no update needed")
+
+	err = lockedfile.Transform(ModFilePath(), func(old []byte) ([]byte, error) {
 		if bytes.Equal(old, new) {
-			// Some other process wrote the same go.mod file that we were about to write.
-			modFileData = new
-			return
+			// The go.mod file is already equal to new, possibly as the result of some
+			// other process.
+			return nil, errNoChange
 		}
-		if err != nil {
-			base.Fatalf("go: can't determine whether go.mod has changed: %v", err)
+
+		if index != nil && !bytes.Equal(old, index.data) {
+			// The contents of the go.mod file have changed. In theory we could add all
+			// of the new modules to the build list, recompute, and check whether any
+			// module in *our* build list got bumped to a different version, but that's
+			// a lot of work for marginal benefit. Instead, fail the command: if users
+			// want to run concurrent commands, they need to start with a complete,
+			// consistent module definition.
+			return nil, fmt.Errorf("existing contents have changed since last read")
 		}
-		// The contents of the go.mod file have changed. In theory we could add all
-		// of the new modules to the build list, recompute, and check whether any
-		// module in *our* build list got bumped to a different version, but that's
-		// a lot of work for marginal benefit. Instead, fail the command: if users
-		// want to run concurrent commands, they need to start with a complete,
-		// consistent module definition.
-		base.Fatalf("go: updates to go.mod needed, but contents have changed")
 
-	}
+		return new, nil
+	})
 
-	if err := renameio.WriteFile(file, new, 0666); err != nil {
-		base.Fatalf("error writing go.mod: %v", err)
+	if err != nil && err != errNoChange {
+		base.Fatalf("go: updating go.mod: %v", err)
 	}
-	modFileData = new
 }
 
-func fixVersion(path, vers string) (string, error) {
-	// Special case: remove the old -gopkgin- hack.
-	if strings.HasPrefix(path, "gopkg.in/") && strings.Contains(vers, "-gopkgin-") {
-		vers = vers[strings.Index(vers, "-gopkgin-")+len("-gopkgin-"):]
+// indexModFile rebuilds the index of modFile.
+// If modFile has been changed since it was first read,
+// modFile.Cleanup must be called before indexModFile.
+func indexModFile(data []byte, modFile *modfile.File, needsFix bool) *modFileIndex {
+	i := new(modFileIndex)
+	i.data = data
+	i.dataNeedsFix = needsFix
+
+	i.module = module.Version{}
+	if modFile.Module != nil {
+		i.module = modFile.Module.Mod
 	}
 
-	// fixVersion is called speculatively on every
-	// module, version pair from every go.mod file.
-	// Avoid the query if it looks OK.
-	_, pathMajor, ok := module.SplitPathVersion(path)
-	if !ok {
-		return "", &module.ModuleError{
-			Path: path,
-			Err: &module.InvalidVersionError{
-				Version: vers,
-				Err:     fmt.Errorf("malformed module path %q", path),
-			},
-		}
+	i.goVersion = ""
+	if modFile.Go != nil {
+		i.goVersion = modFile.Go.Version
 	}
-	if vers != "" && module.CanonicalVersion(vers) == vers {
-		if err := module.MatchPathMajor(vers, pathMajor); err == nil {
-			return vers, nil
+
+	i.require = make(map[module.Version]requireMeta, len(modFile.Require))
+	for _, r := range modFile.Require {
+		i.require[r.Mod] = requireMeta{indirect: r.Indirect}
+	}
+
+	i.replace = make(map[module.Version]module.Version, len(modFile.Replace))
+	for _, r := range modFile.Replace {
+		if prev, dup := i.replace[r.Old]; dup && prev != r.New {
+			base.Fatalf("go: conflicting replacements for %v:\n\t%v\n\t%v", r.Old, prev, r.New)
+		}
+		i.replace[r.Old] = r.New
+	}
+
+	i.exclude = make(map[module.Version]bool, len(modFile.Exclude))
+	for _, x := range modFile.Exclude {
+		i.exclude[x.Mod] = true
+	}
+
+	return i
+}
+
+// modFileIsDirty reports whether the go.mod file differs meaningfully
+// from what was indexed.
+// If modFile has been changed (even cosmetically) since it was first read,
+// modFile.Cleanup must be called before modFileIsDirty.
+func (i *modFileIndex) modFileIsDirty(modFile *modfile.File) bool {
+	if i == nil {
+		return modFile != nil
+	}
+
+	if i.dataNeedsFix {
+		return true
+	}
+
+	if modFile.Module == nil {
+		if i.module != (module.Version{}) {
+			return true
+		}
+	} else if modFile.Module.Mod != i.module {
+		return true
+	}
+
+	if modFile.Go == nil {
+		if i.goVersion != "" {
+			return true
+		}
+	} else if modFile.Go.Version != i.goVersion {
+		if i.goVersion == "" && cfg.BuildMod == "readonly" {
+			// go.mod files did not always require a 'go' version, so do not error out
+			// if one is missing — we may be inside an older module in the module
+			// cache, and should bias toward providing useful behavior.
+		} else {
+			return true
 		}
 	}
 
-	info, err := Query(path, vers, "", nil)
-	if err != nil {
-		return "", err
+	if len(modFile.Require) != len(i.require) ||
+		len(modFile.Replace) != len(i.replace) ||
+		len(modFile.Exclude) != len(i.exclude) {
+		return true
 	}
-	return info.Version, nil
+
+	for _, r := range modFile.Require {
+		if meta, ok := i.require[r.Mod]; !ok {
+			return true
+		} else if r.Indirect != meta.indirect {
+			if cfg.BuildMod == "readonly" {
+				// The module's requirements are consistent; only the "// indirect"
+				// comments that are wrong. But those are only guaranteed to be accurate
+				// after a "go mod tidy" — it's a good idea to run those before
+				// committing a change, but it's certainly not mandatory.
+			} else {
+				return true
+			}
+		}
+	}
+
+	for _, r := range modFile.Replace {
+		if r.New != i.replace[r.Old] {
+			return true
+		}
+	}
+
+	for _, x := range modFile.Exclude {
+		if !i.exclude[x.Mod] {
+			return true
+		}
+	}
+
+	return false
 }
diff --git a/libgo/go/cmd/go/internal/modload/list.go b/libgo/go/cmd/go/internal/modload/list.go
index 35d0c28..9400793 100644
--- a/libgo/go/cmd/go/internal/modload/list.go
+++ b/libgo/go/cmd/go/internal/modload/list.go
@@ -11,10 +11,12 @@
 	"strings"
 
 	"cmd/go/internal/base"
+	"cmd/go/internal/cfg"
 	"cmd/go/internal/modinfo"
-	"cmd/go/internal/module"
 	"cmd/go/internal/par"
 	"cmd/go/internal/search"
+
+	"golang.org/x/mod/module"
 )
 
 func ListModules(args []string, listU, listVersions bool) []*modinfo.ModulePublic {
@@ -55,6 +57,9 @@
 		if search.IsRelativePath(arg) {
 			base.Fatalf("go: cannot use relative path %s to specify module", arg)
 		}
+		if !HasModRoot() && (arg == "all" || strings.Contains(arg, "...")) {
+			base.Fatalf("go: cannot match %q: working directory is not part of a module", arg)
+		}
 		if i := strings.Index(arg, "@"); i >= 0 {
 			path := arg[:i]
 			vers := arg[i+1:]
@@ -121,10 +126,20 @@
 					}
 					continue
 				}
-				mods = append(mods, &modinfo.ModulePublic{
-					Path:  arg,
-					Error: modinfoError(arg, "", errors.New("not a known dependency")),
-				})
+				if cfg.BuildMod == "vendor" {
+					// In vendor mode, we can't determine whether a missing module is “a
+					// known dependency” because the module graph is incomplete.
+					// Give a more explicit error message.
+					mods = append(mods, &modinfo.ModulePublic{
+						Path:  arg,
+						Error: modinfoError(arg, "", errors.New("can't resolve module using the vendor directory\n\t(Use -mod=mod or -mod=readonly to bypass.)")),
+					})
+				} else {
+					mods = append(mods, &modinfo.ModulePublic{
+						Path:  arg,
+						Error: modinfoError(arg, "", errors.New("not a known dependency")),
+					})
+				}
 			} else {
 				fmt.Fprintf(os.Stderr, "warning: pattern %q matched no module dependencies\n", arg)
 			}
diff --git a/libgo/go/cmd/go/internal/modload/load.go b/libgo/go/cmd/go/internal/modload/load.go
index d18723e..408c790 100644
--- a/libgo/go/cmd/go/internal/modload/load.go
+++ b/libgo/go/cmd/go/internal/modload/load.go
@@ -22,13 +22,14 @@
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/imports"
 	"cmd/go/internal/modfetch"
-	"cmd/go/internal/modfile"
-	"cmd/go/internal/module"
 	"cmd/go/internal/mvs"
 	"cmd/go/internal/par"
 	"cmd/go/internal/search"
-	"cmd/go/internal/semver"
 	"cmd/go/internal/str"
+
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 // buildList is the list of modules to use for building packages.
@@ -93,11 +94,11 @@
 				pkgs := m.Pkgs
 				m.Pkgs = m.Pkgs[:0]
 				for _, pkg := range pkgs {
-					dir := pkg
-					if !filepath.IsAbs(dir) {
-						dir = filepath.Join(cwd, pkg)
+					var dir string
+					if !filepath.IsAbs(pkg) {
+						dir = filepath.Join(base.Cwd, pkg)
 					} else {
-						dir = filepath.Clean(dir)
+						dir = filepath.Clean(pkg)
 					}
 
 					// golang.org/issue/32917: We should resolve a relative path to a
@@ -211,11 +212,17 @@
 
 	// One last pass to finalize wildcards.
 	updateMatches(matches, false)
+	checkMultiplePaths()
+	WriteGoMod()
 
-	// A given module path may be used as itself or as a replacement for another
-	// module, but not both at the same time. Otherwise, the aliasing behavior is
-	// too subtle (see https://golang.org/issue/26607), and we don't want to
-	// commit to a specific behavior at this point.
+	return matches
+}
+
+// checkMultiplePaths verifies that a given module path is used as itself
+// or as a replacement for another module, but not both at the same time.
+//
+// (See https://golang.org/issue/26607 and https://golang.org/issue/34650.)
+func checkMultiplePaths() {
 	firstPath := make(map[module.Version]string, len(buildList))
 	for _, mod := range buildList {
 		src := mod
@@ -229,9 +236,6 @@
 		}
 	}
 	base.ExitIfErrors()
-	WriteGoMod()
-
-	return matches
 }
 
 // pathInModuleCache returns the import path of the directory dir,
@@ -318,7 +322,7 @@
 	}
 
 	if !filepath.IsAbs(dir) {
-		dir = filepath.Join(cwd, dir)
+		dir = filepath.Join(base.Cwd, dir)
 	} else {
 		dir = filepath.Clean(dir)
 	}
@@ -383,6 +387,7 @@
 	}
 	all := TargetPackages("...")
 	loaded.load(func() []string { return all })
+	checkMultiplePaths()
 	WriteGoMod()
 
 	var paths []string
@@ -401,6 +406,10 @@
 // matching pattern, which may be relative to the working directory, under all
 // build tag settings.
 func TargetPackages(pattern string) []string {
+	// TargetPackages is relative to the main module, so ensure that the main
+	// module is a thing that can contain packages.
+	ModRoot()
+
 	return matchPackages(pattern, imports.AnyTags(), false, []module.Version{Target})
 }
 
@@ -419,6 +428,37 @@
 	buildList = append([]module.Version{}, list...)
 }
 
+// TidyBuildList trims the build list to the minimal requirements needed to
+// retain the same versions of all packages from the preceding Load* or
+// ImportPaths* call.
+func TidyBuildList() {
+	used := map[module.Version]bool{Target: true}
+	for _, pkg := range loaded.pkgs {
+		used[pkg.mod] = true
+	}
+
+	keep := []module.Version{Target}
+	var direct []string
+	for _, m := range buildList[1:] {
+		if used[m] {
+			keep = append(keep, m)
+			if loaded.direct[m.Path] {
+				direct = append(direct, m.Path)
+			}
+		} else if cfg.BuildV {
+			if _, ok := index.require[m]; ok {
+				fmt.Fprintf(os.Stderr, "unused %s\n", m.Path)
+			}
+		}
+	}
+
+	min, err := mvs.Req(Target, direct, &mvsReqs{buildList: keep})
+	if err != nil {
+		base.Fatalf("go: %v", err)
+	}
+	buildList = append([]module.Version{Target}, min...)
+}
+
 // ImportMap returns the actual package import path
 // for an import path found in source code.
 // If the given import path does not appear in the source code
@@ -621,6 +661,7 @@
 				added[pkg.path] = true
 				numAdded++
 				if !haveMod[err.Module] {
+					fmt.Fprintf(os.Stderr, "go: found %s in %s %s\n", pkg.path, err.Module.Path, err.Module.Version)
 					haveMod[err.Module] = true
 					modAddedBy[err.Module] = pkg
 					buildList = append(buildList, err.Module)
@@ -960,21 +1001,15 @@
 // If there is no replacement for mod, Replacement returns
 // a module.Version with Path == "".
 func Replacement(mod module.Version) module.Version {
-	if modFile == nil {
-		// Happens during testing and if invoking 'go get' or 'go list' outside a module.
-		return module.Version{}
-	}
-
-	var found *modfile.Replace
-	for _, r := range modFile.Replace {
-		if r.Old.Path == mod.Path && (r.Old.Version == "" || r.Old.Version == mod.Version) {
-			found = r // keep going
+	if index != nil {
+		if r, ok := index.replace[mod]; ok {
+			return r
+		}
+		if r, ok := index.replace[module.Version{Path: mod.Path}]; ok {
+			return r
 		}
 	}
-	if found == nil {
-		return module.Version{}
-	}
-	return found.New
+	return module.Version{}
 }
 
 // mvsReqs implements mvs.Reqs for module semantic versions,
@@ -1007,15 +1042,17 @@
 			return cached{nil, err}
 		}
 		for i, mv := range list {
-			for excluded[mv] {
-				mv1, err := r.next(mv)
-				if err != nil {
-					return cached{nil, err}
+			if index != nil {
+				for index.exclude[mv] {
+					mv1, err := r.next(mv)
+					if err != nil {
+						return cached{nil, err}
+					}
+					if mv1.Version == "none" {
+						return cached{nil, fmt.Errorf("%s(%s) depends on excluded %s(%s) with no newer version available", mod.Path, mod.Version, mv.Path, mv.Version)}
+					}
+					mv = mv1
 				}
-				if mv1.Version == "none" {
-					return cached{nil, fmt.Errorf("%s(%s) depends on excluded %s(%s) with no newer version available", mod.Path, mod.Version, mv.Path, mv.Version)}
-				}
-				mv = mv1
 			}
 			list[i] = mv
 		}
@@ -1028,30 +1065,106 @@
 
 var vendorOnce sync.Once
 
+type vendorMetadata struct {
+	Explicit    bool
+	Replacement module.Version
+}
+
 var (
-	vendorList []module.Version
-	vendorMap  map[string]module.Version
+	vendorList      []module.Version          // modules that contribute packages to the build, in order of appearance
+	vendorReplaced  []module.Version          // all replaced modules; may or may not also contribute packages
+	vendorVersion   map[string]string         // module path → selected version (if known)
+	vendorPkgModule map[string]module.Version // package → containing module
+	vendorMeta      map[module.Version]vendorMetadata
 )
 
 // readVendorList reads the list of vendored modules from vendor/modules.txt.
 func readVendorList() {
 	vendorOnce.Do(func() {
 		vendorList = nil
-		vendorMap = make(map[string]module.Version)
-		data, _ := ioutil.ReadFile(filepath.Join(ModRoot(), "vendor/modules.txt"))
-		var m module.Version
+		vendorPkgModule = make(map[string]module.Version)
+		vendorVersion = make(map[string]string)
+		vendorMeta = make(map[module.Version]vendorMetadata)
+		data, err := ioutil.ReadFile(filepath.Join(ModRoot(), "vendor/modules.txt"))
+		if err != nil {
+			if !errors.Is(err, os.ErrNotExist) {
+				base.Fatalf("go: %s", err)
+			}
+			return
+		}
+
+		var mod module.Version
 		for _, line := range strings.Split(string(data), "\n") {
 			if strings.HasPrefix(line, "# ") {
 				f := strings.Fields(line)
-				m = module.Version{}
-				if len(f) == 3 && semver.IsValid(f[2]) {
-					m = module.Version{Path: f[1], Version: f[2]}
-					vendorList = append(vendorList, m)
+
+				if len(f) < 3 {
+					continue
 				}
-			} else if m.Path != "" {
-				f := strings.Fields(line)
-				if len(f) == 1 {
-					vendorMap[f[0]] = m
+				if semver.IsValid(f[2]) {
+					// A module, but we don't yet know whether it is in the build list or
+					// only included to indicate a replacement.
+					mod = module.Version{Path: f[1], Version: f[2]}
+					f = f[3:]
+				} else if f[2] == "=>" {
+					// A wildcard replacement found in the main module's go.mod file.
+					mod = module.Version{Path: f[1]}
+					f = f[2:]
+				} else {
+					// Not a version or a wildcard replacement.
+					// We don't know how to interpret this module line, so ignore it.
+					mod = module.Version{}
+					continue
+				}
+
+				if len(f) >= 2 && f[0] == "=>" {
+					meta := vendorMeta[mod]
+					if len(f) == 2 {
+						// File replacement.
+						meta.Replacement = module.Version{Path: f[1]}
+						vendorReplaced = append(vendorReplaced, mod)
+					} else if len(f) == 3 && semver.IsValid(f[2]) {
+						// Path and version replacement.
+						meta.Replacement = module.Version{Path: f[1], Version: f[2]}
+						vendorReplaced = append(vendorReplaced, mod)
+					} else {
+						// We don't understand this replacement. Ignore it.
+					}
+					vendorMeta[mod] = meta
+				}
+				continue
+			}
+
+			// Not a module line. Must be a package within a module or a metadata
+			// directive, either of which requires a preceding module line.
+			if mod.Path == "" {
+				continue
+			}
+
+			if strings.HasPrefix(line, "## ") {
+				// Metadata. Take the union of annotations across multiple lines, if present.
+				meta := vendorMeta[mod]
+				for _, entry := range strings.Split(strings.TrimPrefix(line, "## "), ";") {
+					entry = strings.TrimSpace(entry)
+					if entry == "explicit" {
+						meta.Explicit = true
+					}
+					// All other tokens are reserved for future use.
+				}
+				vendorMeta[mod] = meta
+				continue
+			}
+
+			if f := strings.Fields(line); len(f) == 1 && module.CheckImportPath(f[0]) == nil {
+				// A package within the current module.
+				vendorPkgModule[f[0]] = mod
+
+				// Since this module provides a package for the build, we know that it
+				// is in the build list and is the selected version of its path.
+				// If this information is new, record it.
+				if v, ok := vendorVersion[mod.Path]; !ok || semver.Compare(v, mod.Version) < 0 {
+					vendorList = append(vendorList, mod)
+					vendorVersion[mod.Path] = mod.Version
 				}
 			}
 		}
@@ -1082,19 +1195,6 @@
 		return append([]module.Version(nil), vendorList...), nil
 	}
 
-	if targetInGorootSrc {
-		// When inside "std" or "cmd", only fetch and read go.mod files if we're
-		// explicitly running a command that can change the module graph. If we have
-		// to resolve a new dependency, we might pick the wrong version, but 'go mod
-		// tidy' will fix it — and new standard-library dependencies should be rare
-		// anyway.
-		//
-		// TODO(golang.org/issue/30240): Drop this special-case.
-		if cfg.CmdName != "get" && !strings.HasPrefix(cfg.CmdName, "mod ") {
-			return nil, nil
-		}
-	}
-
 	origPath := mod.Path
 	if repl := Replacement(mod); repl.Path != "" {
 		if repl.Version == "" {
@@ -1209,6 +1309,11 @@
 	return module.Version{Path: m.Path, Version: "none"}, nil
 }
 
+// fetch downloads the given module (or its replacement)
+// and returns its location.
+//
+// The isLocal return value reports whether the replacement,
+// if any, is local to the filesystem.
 func fetch(mod module.Version) (dir string, isLocal bool, err error) {
 	if mod == Target {
 		return ModRoot(), true, nil
diff --git a/libgo/go/cmd/go/internal/modload/query.go b/libgo/go/cmd/go/internal/modload/query.go
index 602bf47..53278b9 100644
--- a/libgo/go/cmd/go/internal/modload/query.go
+++ b/libgo/go/cmd/go/internal/modload/query.go
@@ -9,15 +9,18 @@
 	"fmt"
 	"os"
 	pathpkg "path"
+	"path/filepath"
 	"strings"
 	"sync"
 
+	"cmd/go/internal/cfg"
 	"cmd/go/internal/imports"
 	"cmd/go/internal/modfetch"
-	"cmd/go/internal/module"
 	"cmd/go/internal/search"
-	"cmd/go/internal/semver"
 	"cmd/go/internal/str"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
 )
 
 // Query looks up a revision of a given module given a version query string.
@@ -61,10 +64,24 @@
 	return info, err
 }
 
+var errQueryDisabled error = queryDisabledError{}
+
+type queryDisabledError struct{}
+
+func (queryDisabledError) Error() string {
+	if cfg.BuildModReason == "" {
+		return fmt.Sprintf("cannot query module due to -mod=%s", cfg.BuildMod)
+	}
+	return fmt.Sprintf("cannot query module due to -mod=%s\n\t(%s)", cfg.BuildMod, cfg.BuildModReason)
+}
+
 func queryProxy(proxy, path, query, current string, allowed func(module.Version) bool) (*modfetch.RevInfo, error) {
 	if current != "" && !semver.IsValid(current) {
 		return nil, fmt.Errorf("invalid previous version %q", current)
 	}
+	if cfg.BuildMod != "" && cfg.BuildMod != "mod" {
+		return nil, errQueryDisabled
+	}
 	if allowed == nil {
 		allowed = func(module.Version) bool { return true }
 	}
@@ -74,10 +91,20 @@
 	badVersion := func(v string) (*modfetch.RevInfo, error) {
 		return nil, fmt.Errorf("invalid semantic version %q in range %q", v, query)
 	}
-	var ok func(module.Version) bool
-	var prefix string
-	var preferOlder bool
-	var mayUseLatest bool
+	matchesMajor := func(v string) bool {
+		_, pathMajor, ok := module.SplitPathVersion(path)
+		if !ok {
+			return false
+		}
+		return module.CheckPathMajor(v, pathMajor) == nil
+	}
+	var (
+		ok                 func(module.Version) bool
+		prefix             string
+		preferOlder        bool
+		mayUseLatest       bool
+		preferIncompatible bool = strings.HasSuffix(current, "+incompatible")
+	)
 	switch {
 	case query == "latest":
 		ok = allowed
@@ -110,6 +137,9 @@
 		ok = func(m module.Version) bool {
 			return semver.Compare(m.Version, v) <= 0 && allowed(m)
 		}
+		if !matchesMajor(v) {
+			preferIncompatible = true
+		}
 
 	case strings.HasPrefix(query, "<"):
 		v := query[len("<"):]
@@ -119,6 +149,9 @@
 		ok = func(m module.Version) bool {
 			return semver.Compare(m.Version, v) < 0 && allowed(m)
 		}
+		if !matchesMajor(v) {
+			preferIncompatible = true
+		}
 
 	case strings.HasPrefix(query, ">="):
 		v := query[len(">="):]
@@ -129,6 +162,9 @@
 			return semver.Compare(m.Version, v) >= 0 && allowed(m)
 		}
 		preferOlder = true
+		if !matchesMajor(v) {
+			preferIncompatible = true
+		}
 
 	case strings.HasPrefix(query, ">"):
 		v := query[len(">"):]
@@ -143,12 +179,18 @@
 			return semver.Compare(m.Version, v) > 0 && allowed(m)
 		}
 		preferOlder = true
+		if !matchesMajor(v) {
+			preferIncompatible = true
+		}
 
 	case semver.IsValid(query) && isSemverPrefix(query):
 		ok = func(m module.Version) bool {
 			return matchSemverPrefix(query, m.Version) && allowed(m)
 		}
 		prefix = query + "."
+		if !matchesMajor(query) {
+			preferIncompatible = true
+		}
 
 	default:
 		// Direct lookup of semantic version or commit identifier.
@@ -201,6 +243,10 @@
 	if err != nil {
 		return nil, err
 	}
+	releases, prereleases, err := filterVersions(path, versions, ok, preferIncompatible)
+	if err != nil {
+		return nil, err
+	}
 
 	lookup := func(v string) (*modfetch.RevInfo, error) {
 		rev, err := repo.Stat(v)
@@ -221,28 +267,18 @@
 	}
 
 	if preferOlder {
-		for _, v := range versions {
-			if semver.Prerelease(v) == "" && ok(module.Version{Path: path, Version: v}) {
-				return lookup(v)
-			}
+		if len(releases) > 0 {
+			return lookup(releases[0])
 		}
-		for _, v := range versions {
-			if semver.Prerelease(v) != "" && ok(module.Version{Path: path, Version: v}) {
-				return lookup(v)
-			}
+		if len(prereleases) > 0 {
+			return lookup(prereleases[0])
 		}
 	} else {
-		for i := len(versions) - 1; i >= 0; i-- {
-			v := versions[i]
-			if semver.Prerelease(v) == "" && ok(module.Version{Path: path, Version: v}) {
-				return lookup(v)
-			}
+		if len(releases) > 0 {
+			return lookup(releases[len(releases)-1])
 		}
-		for i := len(versions) - 1; i >= 0; i-- {
-			v := versions[i]
-			if semver.Prerelease(v) != "" && ok(module.Version{Path: path, Version: v}) {
-				return lookup(v)
-			}
+		if len(prereleases) > 0 {
+			return lookup(prereleases[len(prereleases)-1])
 		}
 	}
 
@@ -286,6 +322,52 @@
 	return len(v) > len(p) && v[len(p)] == '.' && v[:len(p)] == p && semver.Prerelease(v) == ""
 }
 
+// filterVersions classifies versions into releases and pre-releases, filtering
+// out:
+// 	1. versions that do not satisfy the 'ok' predicate, and
+// 	2. "+incompatible" versions, if a compatible one satisfies the predicate
+// 	   and the incompatible version is not preferred.
+func filterVersions(path string, versions []string, ok func(module.Version) bool, preferIncompatible bool) (releases, prereleases []string, err error) {
+	var lastCompatible string
+	for _, v := range versions {
+		if !ok(module.Version{Path: path, Version: v}) {
+			continue
+		}
+
+		if !preferIncompatible {
+			if !strings.HasSuffix(v, "+incompatible") {
+				lastCompatible = v
+			} else if lastCompatible != "" {
+				// If the latest compatible version is allowed and has a go.mod file,
+				// ignore any version with a higher (+incompatible) major version. (See
+				// https://golang.org/issue/34165.) Note that we even prefer a
+				// compatible pre-release over an incompatible release.
+
+				ok, err := versionHasGoMod(module.Version{Path: path, Version: lastCompatible})
+				if err != nil {
+					return nil, nil, err
+				}
+				if ok {
+					break
+				}
+
+				// No acceptable compatible release has a go.mod file, so the versioning
+				// for the module might not be module-aware, and we should respect
+				// legacy major-version tags.
+				preferIncompatible = true
+			}
+		}
+
+		if semver.Prerelease(v) != "" {
+			prereleases = append(prereleases, v)
+		} else {
+			releases = append(releases, v)
+		}
+	}
+
+	return releases, prereleases, nil
+}
+
 type QueryResult struct {
 	Mod      module.Version
 	Rev      *modfetch.RevInfo
@@ -381,9 +463,10 @@
 			r.Packages = match(r.Mod, root, isLocal)
 			if len(r.Packages) == 0 {
 				return r, &PackageNotInModuleError{
-					Mod:     r.Mod,
-					Query:   query,
-					Pattern: pattern,
+					Mod:         r.Mod,
+					Replacement: Replacement(r.Mod),
+					Query:       query,
+					Pattern:     pattern,
 				}
 			}
 			return r, nil
@@ -471,7 +554,17 @@
 					notExistErr = rErr
 				}
 			} else if err == nil {
-				err = r.err
+				if len(found) > 0 || noPackage != nil {
+					// golang.org/issue/34094: If we have already found a module that
+					// could potentially contain the target package, ignore unclassified
+					// errors for modules with shorter paths.
+
+					// golang.org/issue/34383 is a special case of this: if we have
+					// already found example.com/foo/v2@v2.0.0 with a matching go.mod
+					// file, ignore the error from example.com/foo@v2.0.0.
+				} else {
+					err = r.err
+				}
 			}
 		}
 	}
@@ -526,21 +619,32 @@
 // code for the versions it knows about, and thus did not have the opportunity
 // to return a non-400 status code to suppress fallback.
 type PackageNotInModuleError struct {
-	Mod     module.Version
-	Query   string
-	Pattern string
+	Mod         module.Version
+	Replacement module.Version
+	Query       string
+	Pattern     string
 }
 
 func (e *PackageNotInModuleError) Error() string {
 	found := ""
-	if e.Query != e.Mod.Version {
+	if r := e.Replacement; r.Path != "" {
+		replacement := r.Path
+		if r.Version != "" {
+			replacement = fmt.Sprintf("%s@%s", r.Path, r.Version)
+		}
+		if e.Query == e.Mod.Version {
+			found = fmt.Sprintf(" (replaced by %s)", replacement)
+		} else {
+			found = fmt.Sprintf(" (%s, replaced by %s)", e.Mod.Version, replacement)
+		}
+	} else if e.Query != e.Mod.Version {
 		found = fmt.Sprintf(" (%s)", e.Mod.Version)
 	}
 
 	if strings.Contains(e.Pattern, "...") {
-		return fmt.Sprintf("module %s@%s%s found, but does not contain packages matching %s", e.Mod.Path, e.Query, found, e.Pattern)
+		return fmt.Sprintf("module %s@%s found%s, but does not contain packages matching %s", e.Mod.Path, e.Query, found, e.Pattern)
 	}
-	return fmt.Sprintf("module %s@%s%s found, but does not contain package %s", e.Mod.Path, e.Query, found, e.Pattern)
+	return fmt.Sprintf("module %s@%s found%s, but does not contain package %s", e.Mod.Path, e.Query, found, e.Pattern)
 }
 
 // ModuleHasRootPackage returns whether module m contains a package m.Path.
@@ -552,3 +656,12 @@
 	_, ok := dirInModule(m.Path, m.Path, root, isLocal)
 	return ok, nil
 }
+
+func versionHasGoMod(m module.Version) (bool, error) {
+	root, _, err := fetch(m)
+	if err != nil {
+		return false, err
+	}
+	fi, err := os.Stat(filepath.Join(root, "go.mod"))
+	return err == nil && !fi.IsDir(), nil
+}
diff --git a/libgo/go/cmd/go/internal/modload/query_test.go b/libgo/go/cmd/go/internal/modload/query_test.go
index b91cbb5..9c91c05 100644
--- a/libgo/go/cmd/go/internal/modload/query_test.go
+++ b/libgo/go/cmd/go/internal/modload/query_test.go
@@ -17,7 +17,8 @@
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/modfetch"
 	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/module"
+
+	"golang.org/x/mod/module"
 )
 
 func TestMain(m *testing.M) {
diff --git a/libgo/go/cmd/go/internal/modload/search.go b/libgo/go/cmd/go/internal/modload/search.go
index d82386e..a303f51 100644
--- a/libgo/go/cmd/go/internal/modload/search.go
+++ b/libgo/go/cmd/go/internal/modload/search.go
@@ -13,8 +13,9 @@
 	"cmd/go/internal/base"
 	"cmd/go/internal/cfg"
 	"cmd/go/internal/imports"
-	"cmd/go/internal/module"
 	"cmd/go/internal/search"
+
+	"golang.org/x/mod/module"
 )
 
 // matchPackages returns a list of packages in the list of modules
@@ -48,16 +49,20 @@
 				return nil
 			}
 
-			// Don't use GOROOT/src but do walk down into it.
-			if path == root && importPathRoot == "" {
-				return nil
-			}
-
 			want := true
-			// Avoid .foo, _foo, and testdata directory trees.
-			_, elem := filepath.Split(path)
-			if strings.HasPrefix(elem, ".") || strings.HasPrefix(elem, "_") || elem == "testdata" {
-				want = false
+			elem := ""
+
+			// Don't use GOROOT/src but do walk down into it.
+			if path == root {
+				if importPathRoot == "" {
+					return nil
+				}
+			} else {
+				// Avoid .foo, _foo, and testdata subdirectory trees.
+				_, elem = filepath.Split(path)
+				if strings.HasPrefix(elem, ".") || strings.HasPrefix(elem, "_") || elem == "testdata" {
+					want = false
+				}
 			}
 
 			name := importPathRoot + filepath.ToSlash(path[len(root):])
diff --git a/libgo/go/cmd/go/internal/modload/stat_openfile.go b/libgo/go/cmd/go/internal/modload/stat_openfile.go
new file mode 100644
index 0000000..931aaf1
--- /dev/null
+++ b/libgo/go/cmd/go/internal/modload/stat_openfile.go
@@ -0,0 +1,27 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix js,wasm plan9
+
+// On plan9, per http://9p.io/magic/man2html/2/access: “Since file permissions
+// are checked by the server and group information is not known to the client,
+// access must open the file to check permissions.”
+//
+// aix and js,wasm are similar, in that they do not define syscall.Access.
+
+package modload
+
+import (
+	"os"
+)
+
+// hasWritePerm reports whether the current user has permission to write to the
+// file with the given info.
+func hasWritePerm(path string, _ os.FileInfo) bool {
+	if f, err := os.OpenFile(path, os.O_WRONLY, 0); err == nil {
+		f.Close()
+		return true
+	}
+	return false
+}
diff --git a/libgo/go/cmd/go/internal/modload/stat_unix.go b/libgo/go/cmd/go/internal/modload/stat_unix.go
new file mode 100644
index 0000000..a53d17e
--- /dev/null
+++ b/libgo/go/cmd/go/internal/modload/stat_unix.go
@@ -0,0 +1,31 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin dragonfly freebsd hurd linux netbsd openbsd solaris
+
+package modload
+
+import (
+	"os"
+	"syscall"
+)
+
+// hasWritePerm reports whether the current user has permission to write to the
+// file with the given info.
+//
+// Although the root user on most Unix systems can write to files even without
+// permission, hasWritePerm reports false if no appropriate permission bit is
+// set even if the current user is root.
+func hasWritePerm(path string, fi os.FileInfo) bool {
+	if os.Getuid() == 0 {
+		// The root user can access any file, but we still want to default to
+		// read-only mode if the go.mod file is marked as globally non-writable.
+		// (If the user really intends not to be in readonly mode, they can
+		// pass -mod=mod explicitly.)
+		return fi.Mode()&0222 != 0
+	}
+
+	const W_OK = 0x2
+	return syscall.Access(path, W_OK) == nil
+}
diff --git a/libgo/go/cmd/go/internal/modload/stat_windows.go b/libgo/go/cmd/go/internal/modload/stat_windows.go
new file mode 100644
index 0000000..d7826cf
--- /dev/null
+++ b/libgo/go/cmd/go/internal/modload/stat_windows.go
@@ -0,0 +1,23 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package modload
+
+import (
+	"os"
+)
+
+// hasWritePerm reports whether the current user has permission to write to the
+// file with the given info.
+func hasWritePerm(_ string, fi os.FileInfo) bool {
+	// Windows has a read-only attribute independent of ACLs, so use that to
+	// determine whether the file is intended to be overwritten.
+	//
+	// Per https://golang.org/pkg/os/#Chmod:
+	// “On Windows, only the 0200 bit (owner writable) of mode is used; it
+	// controls whether the file's read-only attribute is set or cleared.”
+	return fi.Mode()&0200 != 0
+}
diff --git a/libgo/go/cmd/go/internal/modload/testgo.go b/libgo/go/cmd/go/internal/modload/testgo.go
index 663b24a..6b34f5b 100644
--- a/libgo/go/cmd/go/internal/modload/testgo.go
+++ b/libgo/go/cmd/go/internal/modload/testgo.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//+build testgo
+// +build testgo
 
 package modload
 
diff --git a/libgo/go/cmd/go/internal/module/module_test.go b/libgo/go/cmd/go/internal/module/module_test.go
deleted file mode 100644
index b9f07bf..0000000
--- a/libgo/go/cmd/go/internal/module/module_test.go
+++ /dev/null
@@ -1,319 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package module
-
-import "testing"
-
-var checkTests = []struct {
-	path    string
-	version string
-	ok      bool
-}{
-	{"rsc.io/quote", "0.1.0", false},
-	{"rsc io/quote", "v1.0.0", false},
-
-	{"github.com/go-yaml/yaml", "v0.8.0", true},
-	{"github.com/go-yaml/yaml", "v1.0.0", true},
-	{"github.com/go-yaml/yaml", "v2.0.0", false},
-	{"github.com/go-yaml/yaml", "v2.1.5", false},
-	{"github.com/go-yaml/yaml", "v3.0.0", false},
-
-	{"github.com/go-yaml/yaml/v2", "v1.0.0", false},
-	{"github.com/go-yaml/yaml/v2", "v2.0.0", true},
-	{"github.com/go-yaml/yaml/v2", "v2.1.5", true},
-	{"github.com/go-yaml/yaml/v2", "v3.0.0", false},
-
-	{"gopkg.in/yaml.v0", "v0.8.0", true},
-	{"gopkg.in/yaml.v0", "v1.0.0", false},
-	{"gopkg.in/yaml.v0", "v2.0.0", false},
-	{"gopkg.in/yaml.v0", "v2.1.5", false},
-	{"gopkg.in/yaml.v0", "v3.0.0", false},
-
-	{"gopkg.in/yaml.v1", "v0.8.0", false},
-	{"gopkg.in/yaml.v1", "v1.0.0", true},
-	{"gopkg.in/yaml.v1", "v2.0.0", false},
-	{"gopkg.in/yaml.v1", "v2.1.5", false},
-	{"gopkg.in/yaml.v1", "v3.0.0", false},
-
-	// For gopkg.in, .v1 means v1 only (not v0).
-	// But early versions of vgo still generated v0 pseudo-versions for it.
-	// Even though now we'd generate those as v1 pseudo-versions,
-	// we accept the old pseudo-versions to avoid breaking existing go.mod files.
-	// For example gopkg.in/yaml.v2@v2.2.1's go.mod requires check.v1 at a v0 pseudo-version.
-	{"gopkg.in/check.v1", "v0.0.0", false},
-	{"gopkg.in/check.v1", "v0.0.0-20160102150405-abcdef123456", true},
-
-	{"gopkg.in/yaml.v2", "v1.0.0", false},
-	{"gopkg.in/yaml.v2", "v2.0.0", true},
-	{"gopkg.in/yaml.v2", "v2.1.5", true},
-	{"gopkg.in/yaml.v2", "v3.0.0", false},
-
-	{"rsc.io/quote", "v17.0.0", false},
-	{"rsc.io/quote", "v17.0.0+incompatible", true},
-}
-
-func TestCheck(t *testing.T) {
-	for _, tt := range checkTests {
-		err := Check(tt.path, tt.version)
-		if tt.ok && err != nil {
-			t.Errorf("Check(%q, %q) = %v, wanted nil error", tt.path, tt.version, err)
-		} else if !tt.ok && err == nil {
-			t.Errorf("Check(%q, %q) succeeded, wanted error", tt.path, tt.version)
-		}
-	}
-}
-
-var checkPathTests = []struct {
-	path     string
-	ok       bool
-	importOK bool
-	fileOK   bool
-}{
-	{"x.y/z", true, true, true},
-	{"x.y", true, true, true},
-
-	{"", false, false, false},
-	{"x.y/\xFFz", false, false, false},
-	{"/x.y/z", false, false, false},
-	{"x./z", false, false, false},
-	{".x/z", false, false, true},
-	{"-x/z", false, false, false},
-	{"x..y/z", false, false, false},
-	{"x.y/z/../../w", false, false, false},
-	{"x.y//z", false, false, false},
-	{"x.y/z//w", false, false, false},
-	{"x.y/z/", false, false, false},
-
-	{"x.y/z/v0", false, true, true},
-	{"x.y/z/v1", false, true, true},
-	{"x.y/z/v2", true, true, true},
-	{"x.y/z/v2.0", false, true, true},
-	{"X.y/z", false, true, true},
-
-	{"!x.y/z", false, false, true},
-	{"_x.y/z", false, true, true},
-	{"x.y!/z", false, false, true},
-	{"x.y\"/z", false, false, false},
-	{"x.y#/z", false, false, true},
-	{"x.y$/z", false, false, true},
-	{"x.y%/z", false, false, true},
-	{"x.y&/z", false, false, true},
-	{"x.y'/z", false, false, false},
-	{"x.y(/z", false, false, true},
-	{"x.y)/z", false, false, true},
-	{"x.y*/z", false, false, false},
-	{"x.y+/z", false, true, true},
-	{"x.y,/z", false, false, true},
-	{"x.y-/z", true, true, true},
-	{"x.y./zt", false, false, false},
-	{"x.y:/z", false, false, false},
-	{"x.y;/z", false, false, false},
-	{"x.y</z", false, false, false},
-	{"x.y=/z", false, false, true},
-	{"x.y>/z", false, false, false},
-	{"x.y?/z", false, false, false},
-	{"x.y@/z", false, false, true},
-	{"x.y[/z", false, false, true},
-	{"x.y\\/z", false, false, false},
-	{"x.y]/z", false, false, true},
-	{"x.y^/z", false, false, true},
-	{"x.y_/z", false, true, true},
-	{"x.y`/z", false, false, false},
-	{"x.y{/z", false, false, true},
-	{"x.y}/z", false, false, true},
-	{"x.y~/z", false, true, true},
-	{"x.y/z!", false, false, true},
-	{"x.y/z\"", false, false, false},
-	{"x.y/z#", false, false, true},
-	{"x.y/z$", false, false, true},
-	{"x.y/z%", false, false, true},
-	{"x.y/z&", false, false, true},
-	{"x.y/z'", false, false, false},
-	{"x.y/z(", false, false, true},
-	{"x.y/z)", false, false, true},
-	{"x.y/z*", false, false, false},
-	{"x.y/z+", true, true, true},
-	{"x.y/z,", false, false, true},
-	{"x.y/z-", true, true, true},
-	{"x.y/z.t", true, true, true},
-	{"x.y/z/t", true, true, true},
-	{"x.y/z:", false, false, false},
-	{"x.y/z;", false, false, false},
-	{"x.y/z<", false, false, false},
-	{"x.y/z=", false, false, true},
-	{"x.y/z>", false, false, false},
-	{"x.y/z?", false, false, false},
-	{"x.y/z@", false, false, true},
-	{"x.y/z[", false, false, true},
-	{"x.y/z\\", false, false, false},
-	{"x.y/z]", false, false, true},
-	{"x.y/z^", false, false, true},
-	{"x.y/z_", true, true, true},
-	{"x.y/z`", false, false, false},
-	{"x.y/z{", false, false, true},
-	{"x.y/z}", false, false, true},
-	{"x.y/z~", true, true, true},
-	{"x.y/x.foo", true, true, true},
-	{"x.y/aux.foo", false, false, false},
-	{"x.y/prn", false, false, false},
-	{"x.y/prn2", true, true, true},
-	{"x.y/com", true, true, true},
-	{"x.y/com1", false, false, false},
-	{"x.y/com1.txt", false, false, false},
-	{"x.y/calm1", true, true, true},
-	{"github.com/!123/logrus", false, false, true},
-
-	// TODO: CL 41822 allowed Unicode letters in old "go get"
-	// without due consideration of the implications, and only on github.com (!).
-	// For now, we disallow non-ASCII characters in module mode,
-	// in both module paths and general import paths,
-	// until we can get the implications right.
-	// When we do, we'll enable them everywhere, not just for GitHub.
-	{"github.com/user/unicode/испытание", false, false, true},
-
-	{"../x", false, false, false},
-	{"./y", false, false, false},
-	{"x:y", false, false, false},
-	{`\temp\foo`, false, false, false},
-	{".gitignore", false, false, true},
-	{".github/ISSUE_TEMPLATE", false, false, true},
-	{"x☺y", false, false, false},
-}
-
-func TestCheckPath(t *testing.T) {
-	for _, tt := range checkPathTests {
-		err := CheckPath(tt.path)
-		if tt.ok && err != nil {
-			t.Errorf("CheckPath(%q) = %v, wanted nil error", tt.path, err)
-		} else if !tt.ok && err == nil {
-			t.Errorf("CheckPath(%q) succeeded, wanted error", tt.path)
-		}
-
-		err = CheckImportPath(tt.path)
-		if tt.importOK && err != nil {
-			t.Errorf("CheckImportPath(%q) = %v, wanted nil error", tt.path, err)
-		} else if !tt.importOK && err == nil {
-			t.Errorf("CheckImportPath(%q) succeeded, wanted error", tt.path)
-		}
-
-		err = CheckFilePath(tt.path)
-		if tt.fileOK && err != nil {
-			t.Errorf("CheckFilePath(%q) = %v, wanted nil error", tt.path, err)
-		} else if !tt.fileOK && err == nil {
-			t.Errorf("CheckFilePath(%q) succeeded, wanted error", tt.path)
-		}
-	}
-}
-
-var splitPathVersionTests = []struct {
-	pathPrefix string
-	version    string
-}{
-	{"x.y/z", ""},
-	{"x.y/z", "/v2"},
-	{"x.y/z", "/v3"},
-	{"x.y/v", ""},
-	{"gopkg.in/yaml", ".v0"},
-	{"gopkg.in/yaml", ".v1"},
-	{"gopkg.in/yaml", ".v2"},
-	{"gopkg.in/yaml", ".v3"},
-}
-
-func TestSplitPathVersion(t *testing.T) {
-	for _, tt := range splitPathVersionTests {
-		pathPrefix, version, ok := SplitPathVersion(tt.pathPrefix + tt.version)
-		if pathPrefix != tt.pathPrefix || version != tt.version || !ok {
-			t.Errorf("SplitPathVersion(%q) = %q, %q, %v, want %q, %q, true", tt.pathPrefix+tt.version, pathPrefix, version, ok, tt.pathPrefix, tt.version)
-		}
-	}
-
-	for _, tt := range checkPathTests {
-		pathPrefix, version, ok := SplitPathVersion(tt.path)
-		if pathPrefix+version != tt.path {
-			t.Errorf("SplitPathVersion(%q) = %q, %q, %v, doesn't add to input", tt.path, pathPrefix, version, ok)
-		}
-	}
-}
-
-var encodeTests = []struct {
-	path string
-	enc  string // empty means same as path
-}{
-	{path: "ascii.com/abcdefghijklmnopqrstuvwxyz.-+/~_0123456789"},
-	{path: "github.com/GoogleCloudPlatform/omega", enc: "github.com/!google!cloud!platform/omega"},
-}
-
-func TestEncodePath(t *testing.T) {
-	// Check invalid paths.
-	for _, tt := range checkPathTests {
-		if !tt.ok {
-			_, err := EncodePath(tt.path)
-			if err == nil {
-				t.Errorf("EncodePath(%q): succeeded, want error (invalid path)", tt.path)
-			}
-		}
-	}
-
-	// Check encodings.
-	for _, tt := range encodeTests {
-		enc, err := EncodePath(tt.path)
-		if err != nil {
-			t.Errorf("EncodePath(%q): unexpected error: %v", tt.path, err)
-			continue
-		}
-		want := tt.enc
-		if want == "" {
-			want = tt.path
-		}
-		if enc != want {
-			t.Errorf("EncodePath(%q) = %q, want %q", tt.path, enc, want)
-		}
-	}
-}
-
-var badDecode = []string{
-	"github.com/GoogleCloudPlatform/omega",
-	"github.com/!google!cloud!platform!/omega",
-	"github.com/!0google!cloud!platform/omega",
-	"github.com/!_google!cloud!platform/omega",
-	"github.com/!!google!cloud!platform/omega",
-	"",
-}
-
-func TestDecodePath(t *testing.T) {
-	// Check invalid decodings.
-	for _, bad := range badDecode {
-		_, err := DecodePath(bad)
-		if err == nil {
-			t.Errorf("DecodePath(%q): succeeded, want error (invalid decoding)", bad)
-		}
-	}
-
-	// Check invalid paths (or maybe decodings).
-	for _, tt := range checkPathTests {
-		if !tt.ok {
-			path, err := DecodePath(tt.path)
-			if err == nil {
-				t.Errorf("DecodePath(%q) = %q, want error (invalid path)", tt.path, path)
-			}
-		}
-	}
-
-	// Check encodings.
-	for _, tt := range encodeTests {
-		enc := tt.enc
-		if enc == "" {
-			enc = tt.path
-		}
-		path, err := DecodePath(enc)
-		if err != nil {
-			t.Errorf("DecodePath(%q): unexpected error: %v", enc, err)
-			continue
-		}
-		if path != tt.path {
-			t.Errorf("DecodePath(%q) = %q, want %q", enc, path, tt.path)
-		}
-	}
-}
diff --git a/libgo/go/cmd/go/internal/mvs/mvs.go b/libgo/go/cmd/go/internal/mvs/mvs.go
index 4e7a828..dd3b3cc 100644
--- a/libgo/go/cmd/go/internal/mvs/mvs.go
+++ b/libgo/go/cmd/go/internal/mvs/mvs.go
@@ -13,8 +13,9 @@
 	"sync"
 	"sync/atomic"
 
-	"cmd/go/internal/module"
 	"cmd/go/internal/par"
+
+	"golang.org/x/mod/module"
 )
 
 // A Reqs is the requirement graph on which Minimal Version Selection (MVS) operates.
@@ -250,10 +251,15 @@
 	return list, nil
 }
 
-// Req returns the minimal requirement list for the target module
-// that results in the given build list, with the constraint that all
-// module paths listed in base must appear in the returned list.
-func Req(target module.Version, list []module.Version, base []string, reqs Reqs) ([]module.Version, error) {
+// Req returns the minimal requirement list for the target module,
+// with the constraint that all module paths listed in base must
+// appear in the returned list.
+func Req(target module.Version, base []string, reqs Reqs) ([]module.Version, error) {
+	list, err := BuildList(target, reqs)
+	if err != nil {
+		return nil, err
+	}
+
 	// Note: Not running in parallel because we assume
 	// that list came from a previous operation that paged
 	// in all the requirements, so there's no I/O to overlap now.
diff --git a/libgo/go/cmd/go/internal/mvs/mvs_test.go b/libgo/go/cmd/go/internal/mvs/mvs_test.go
index 72d3ea9..9a30a8c 100644
--- a/libgo/go/cmd/go/internal/mvs/mvs_test.go
+++ b/libgo/go/cmd/go/internal/mvs/mvs_test.go
@@ -10,7 +10,7 @@
 	"strings"
 	"testing"
 
-	"cmd/go/internal/module"
+	"golang.org/x/mod/module"
 )
 
 var tests = `
@@ -280,6 +280,20 @@
 build A: A B1 C1 D1
 upgrade* A: A B2 C2 D2
 
+# Cycles with multiple possible solutions.
+# (golang.org/issue/34086)
+name: cycle3
+M: A1 C2
+A1: B1
+B1: C1
+B2: C2
+C1:
+C2: B2
+build M: M A1 B2 C2
+req M: A1 B2
+req M A: A1 B2
+req M C: A1 C2
+
 # Requirement minimization.
 
 name: req1
@@ -390,7 +404,15 @@
 			fns = append(fns, func(t *testing.T) {
 				list, err := Upgrade(m(kf[1]), reqs, ms(kf[2:])...)
 				if err == nil {
-					list, err = Req(m(kf[1]), list, nil, reqs)
+					// Copy the reqs map, but substitute the upgraded requirements in
+					// place of the target's original requirements.
+					upReqs := make(reqsMap, len(reqs))
+					for m, r := range reqs {
+						upReqs[m] = r
+					}
+					upReqs[m(kf[1])] = list
+
+					list, err = Req(m(kf[1]), nil, upReqs)
 				}
 				checkList(t, key, list, err, val)
 			})
@@ -418,11 +440,7 @@
 				t.Fatalf("req takes at least one argument: %q", line)
 			}
 			fns = append(fns, func(t *testing.T) {
-				list, err := BuildList(m(kf[1]), reqs)
-				if err != nil {
-					t.Fatal(err)
-				}
-				list, err = Req(m(kf[1]), list, kf[2:], reqs)
+				list, err := Req(m(kf[1]), kf[2:], reqs)
 				checkList(t, key, list, err, val)
 			})
 			continue
diff --git a/libgo/go/cmd/go/internal/note/example_test.go b/libgo/go/cmd/go/internal/note/example_test.go
deleted file mode 100644
index 53554b4..0000000
--- a/libgo/go/cmd/go/internal/note/example_test.go
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package note_test
-
-import (
-	"fmt"
-	"io"
-	"os"
-
-	"cmd/go/internal/note"
-)
-
-func ExampleSign() {
-	skey := "PRIVATE+KEY+PeterNeumann+c74f20a3+AYEKFALVFGyNhPJEMzD1QIDr+Y7hfZx09iUvxdXHKDFz"
-	text := "If you think cryptography is the answer to your problem,\n" +
-		"then you don't know what your problem is.\n"
-
-	signer, err := note.NewSigner(skey)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-
-	msg, err := note.Sign(&note.Note{Text: text}, signer)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-	os.Stdout.Write(msg)
-
-	// Output:
-	// If you think cryptography is the answer to your problem,
-	// then you don't know what your problem is.
-	//
-	// — PeterNeumann x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=
-}
-
-func ExampleOpen() {
-	vkey := "PeterNeumann+c74f20a3+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW"
-	msg := []byte("If you think cryptography is the answer to your problem,\n" +
-		"then you don't know what your problem is.\n" +
-		"\n" +
-		"— PeterNeumann x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=\n")
-
-	verifier, err := note.NewVerifier(vkey)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-	verifiers := note.VerifierList(verifier)
-
-	n, err := note.Open(msg, verifiers)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-	fmt.Printf("%s (%08x):\n%s", n.Sigs[0].Name, n.Sigs[0].Hash, n.Text)
-
-	// Output:
-	// PeterNeumann (c74f20a3):
-	// If you think cryptography is the answer to your problem,
-	// then you don't know what your problem is.
-}
-
-var rand = struct {
-	Reader io.Reader
-}{
-	zeroReader{},
-}
-
-type zeroReader struct{}
-
-func (zeroReader) Read(buf []byte) (int, error) {
-	for i := range buf {
-		buf[i] = 0
-	}
-	return len(buf), nil
-}
-
-func ExampleSign_add_signatures() {
-	vkey := "PeterNeumann+c74f20a3+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW"
-	msg := []byte("If you think cryptography is the answer to your problem,\n" +
-		"then you don't know what your problem is.\n" +
-		"\n" +
-		"— PeterNeumann x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=\n")
-
-	verifier, err := note.NewVerifier(vkey)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-	verifiers := note.VerifierList(verifier)
-
-	n, err := note.Open([]byte(msg), verifiers)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-
-	skey, vkey, err := note.GenerateKey(rand.Reader, "EnochRoot")
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-	_ = vkey // give to verifiers
-
-	me, err := note.NewSigner(skey)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-
-	msg, err = note.Sign(n, me)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-	os.Stdout.Write(msg)
-
-	// Output:
-	// If you think cryptography is the answer to your problem,
-	// then you don't know what your problem is.
-	//
-	// — PeterNeumann x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=
-	// — EnochRoot rwz+eBzmZa0SO3NbfRGzPCpDckykFXSdeX+MNtCOXm2/5n2tiOHp+vAF1aGrQ5ovTG01oOTGwnWLox33WWd1RvMc+QQ=
-}
diff --git a/libgo/go/cmd/go/internal/note/note_test.go b/libgo/go/cmd/go/internal/note/note_test.go
deleted file mode 100644
index 7293246..0000000
--- a/libgo/go/cmd/go/internal/note/note_test.go
+++ /dev/null
@@ -1,472 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package note
-
-import (
-	"crypto/ed25519"
-	"crypto/rand"
-	"errors"
-	"strings"
-	"testing"
-	"testing/iotest"
-)
-
-func TestNewVerifier(t *testing.T) {
-	vkey := "PeterNeumann+c74f20a3+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW"
-	_, err := NewVerifier(vkey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Check various manglings are not accepted.
-	badKey := func(k string) {
-		_, err := NewVerifier(k)
-		if err == nil {
-			t.Errorf("NewVerifier(%q) succeeded, should have failed", k)
-		}
-	}
-
-	b := []byte(vkey)
-	for i := 0; i <= len(b); i++ {
-		for j := i + 1; j <= len(b); j++ {
-			if i != 0 || j != len(b) {
-				badKey(string(b[i:j]))
-			}
-		}
-	}
-	for i := 0; i < len(b); i++ {
-		b[i]++
-		badKey(string(b))
-		b[i]--
-	}
-
-	badKey("PeterNeumann+cc469956+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TWBADKEY==") // wrong length key, with adjusted key hash
-	badKey("PeterNeumann+173116ae+ZRpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW")         // unknown algorithm, with adjusted key hash
-}
-
-func TestNewSigner(t *testing.T) {
-	skey := "PRIVATE+KEY+PeterNeumann+c74f20a3+AYEKFALVFGyNhPJEMzD1QIDr+Y7hfZx09iUvxdXHKDFz"
-	_, err := NewSigner(skey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Check various manglings are not accepted.
-	b := []byte(skey)
-	for i := 0; i <= len(b); i++ {
-		for j := i + 1; j <= len(b); j++ {
-			if i == 0 && j == len(b) {
-				continue
-			}
-			_, err := NewSigner(string(b[i:j]))
-			if err == nil {
-				t.Errorf("NewSigner(%q) succeeded, should have failed", b[i:j])
-			}
-		}
-	}
-	for i := 0; i < len(b); i++ {
-		b[i]++
-		_, err := NewSigner(string(b))
-		if err == nil {
-			t.Errorf("NewSigner(%q) succeeded, should have failed", b)
-		}
-		b[i]--
-	}
-}
-
-func testSignerAndVerifier(t *testing.T, Name string, signer Signer, verifier Verifier) {
-	if name := signer.Name(); name != Name {
-		t.Errorf("signer.Name() = %q, want %q", name, Name)
-	}
-	if name := verifier.Name(); name != Name {
-		t.Errorf("verifier.Name() = %q, want %q", name, Name)
-	}
-	shash := signer.KeyHash()
-	vhash := verifier.KeyHash()
-	if shash != vhash {
-		t.Errorf("signer.KeyHash() = %#08x != verifier.KeyHash() = %#08x", shash, vhash)
-	}
-
-	msg := []byte("hi")
-	sig, err := signer.Sign(msg)
-	if err != nil {
-		t.Fatalf("signer.Sign: %v", err)
-	}
-	if !verifier.Verify(msg, sig) {
-		t.Fatalf("verifier.Verify failed on signature returned by signer.Sign")
-	}
-	sig[0]++
-	if verifier.Verify(msg, sig) {
-		t.Fatalf("verifier.Verify succceeded on corrupt signature")
-	}
-	sig[0]--
-	msg[0]++
-	if verifier.Verify(msg, sig) {
-		t.Fatalf("verifier.Verify succceeded on corrupt message")
-	}
-}
-
-func TestGenerateKey(t *testing.T) {
-	// Generate key pair, make sure it is all self-consistent.
-	const Name = "EnochRoot"
-
-	skey, vkey, err := GenerateKey(rand.Reader, Name)
-	if err != nil {
-		t.Fatalf("GenerateKey: %v", err)
-	}
-	signer, err := NewSigner(skey)
-	if err != nil {
-		t.Fatalf("NewSigner: %v", err)
-	}
-	verifier, err := NewVerifier(vkey)
-	if err != nil {
-		t.Fatalf("NewVerifier: %v", err)
-	}
-
-	testSignerAndVerifier(t, Name, signer, verifier)
-
-	// Check that GenerateKey returns error from rand reader.
-	_, _, err = GenerateKey(iotest.TimeoutReader(iotest.OneByteReader(rand.Reader)), Name)
-	if err == nil {
-		t.Fatalf("GenerateKey succeeded with error-returning rand reader")
-	}
-}
-
-func TestFromEd25519(t *testing.T) {
-	const Name = "EnochRoot"
-
-	pub, priv, err := ed25519.GenerateKey(rand.Reader)
-	if err != nil {
-		t.Fatalf("GenerateKey: %v", err)
-	}
-	signer, err := newSignerFromEd25519Seed(Name, priv.Seed())
-	if err != nil {
-		t.Fatalf("newSignerFromEd25519Seed: %v", err)
-	}
-	vkey, err := NewEd25519VerifierKey(Name, pub)
-	if err != nil {
-		t.Fatalf("NewEd25519VerifierKey: %v", err)
-	}
-	verifier, err := NewVerifier(vkey)
-	if err != nil {
-		t.Fatalf("NewVerifier: %v", err)
-	}
-
-	testSignerAndVerifier(t, Name, signer, verifier)
-
-	// Check that wrong key sizes return errors.
-	_, err = NewEd25519VerifierKey(Name, pub[:len(pub)-1])
-	if err == nil {
-		t.Errorf("NewEd25519VerifierKey succeeded with a seed of the wrong size")
-	}
-}
-
-// newSignerFromEd25519Seed constructs a new signer from a verifier name and a
-// crypto/ed25519 private key seed.
-func newSignerFromEd25519Seed(name string, seed []byte) (Signer, error) {
-	if len(seed) != ed25519.SeedSize {
-		return nil, errors.New("invalid seed size")
-	}
-	priv := ed25519.NewKeyFromSeed(seed)
-	pub := priv[32:]
-
-	pubkey := append([]byte{algEd25519}, pub...)
-	hash := keyHash(name, pubkey)
-
-	s := &signer{
-		name: name,
-		hash: uint32(hash),
-		sign: func(msg []byte) ([]byte, error) {
-			return ed25519.Sign(priv, msg), nil
-		},
-	}
-	return s, nil
-}
-
-func TestSign(t *testing.T) {
-	skey := "PRIVATE+KEY+PeterNeumann+c74f20a3+AYEKFALVFGyNhPJEMzD1QIDr+Y7hfZx09iUvxdXHKDFz"
-	text := "If you think cryptography is the answer to your problem,\n" +
-		"then you don't know what your problem is.\n"
-
-	signer, err := NewSigner(skey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	msg, err := Sign(&Note{Text: text}, signer)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	want := `If you think cryptography is the answer to your problem,
-then you don't know what your problem is.
-
-— PeterNeumann x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=
-`
-	if string(msg) != want {
-		t.Errorf("Sign: wrong output\nhave:\n%s\nwant:\n%s", msg, want)
-	}
-
-	// Check that existing signature is replaced by new one.
-	msg, err = Sign(&Note{Text: text, Sigs: []Signature{{Name: "PeterNeumann", Hash: 0xc74f20a3, Base64: "BADSIGN="}}}, signer)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if string(msg) != want {
-		t.Errorf("Sign replacing signature: wrong output\nhave:\n%s\nwant:\n%s", msg, want)
-	}
-
-	// Check various bad inputs.
-	_, err = Sign(&Note{Text: "abc"}, signer)
-	if err == nil || err.Error() != "malformed note" {
-		t.Fatalf("Sign with short text: %v, want malformed note error", err)
-	}
-
-	_, err = Sign(&Note{Text: text, Sigs: []Signature{{Name: "a+b", Base64: "ABCD"}}})
-	if err == nil || err.Error() != "malformed note" {
-		t.Fatalf("Sign with bad name: %v, want malformed note error", err)
-	}
-
-	_, err = Sign(&Note{Text: text, Sigs: []Signature{{Name: "PeterNeumann", Hash: 0xc74f20a3, Base64: "BADHASH="}}})
-	if err == nil || err.Error() != "malformed note" {
-		t.Fatalf("Sign with bad pre-filled signature: %v, want malformed note error", err)
-	}
-
-	_, err = Sign(&Note{Text: text}, &badSigner{signer})
-	if err == nil || err.Error() != "invalid signer" {
-		t.Fatalf("Sign with bad signer: %v, want invalid signer error", err)
-	}
-
-	_, err = Sign(&Note{Text: text}, &errSigner{signer})
-	if err != errSurprise {
-		t.Fatalf("Sign with failing signer: %v, want errSurprise", err)
-	}
-}
-
-func TestVerifierList(t *testing.T) {
-	peterKey := "PeterNeumann+c74f20a3+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW"
-	peterVerifier, err := NewVerifier(peterKey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	enochKey := "EnochRoot+af0cfe78+ATtqJ7zOtqQtYqOo0CpvDXNlMhV3HeJDpjrASKGLWdop"
-	enochVerifier, err := NewVerifier(enochKey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	list := VerifierList(peterVerifier, enochVerifier, enochVerifier)
-	v, err := list.Verifier("PeterNeumann", 0xc74f20a3)
-	if v != peterVerifier || err != nil {
-		t.Fatalf("list.Verifier(peter) = %v, %v, want %v, nil", v, err, peterVerifier)
-	}
-	v, err = list.Verifier("PeterNeumann", 0xc74f20a4)
-	if v != nil || err == nil || err.Error() != "unknown key PeterNeumann+c74f20a4" {
-		t.Fatalf("list.Verifier(peter bad hash) = %v, %v, want nil, unknown key error", v, err)
-	}
-
-	v, err = list.Verifier("PeterNeuman", 0xc74f20a3)
-	if v != nil || err == nil || err.Error() != "unknown key PeterNeuman+c74f20a3" {
-		t.Fatalf("list.Verifier(peter bad name) = %v, %v, want nil, unknown key error", v, err)
-	}
-	v, err = list.Verifier("EnochRoot", 0xaf0cfe78)
-	if v != nil || err == nil || err.Error() != "ambiguous key EnochRoot+af0cfe78" {
-		t.Fatalf("list.Verifier(enoch) = %v, %v, want nil, ambiguous key error", v, err)
-	}
-}
-
-type badSigner struct {
-	Signer
-}
-
-func (b *badSigner) Name() string {
-	return "bad name"
-}
-
-var errSurprise = errors.New("surprise!")
-
-type errSigner struct {
-	Signer
-}
-
-func (e *errSigner) Sign([]byte) ([]byte, error) {
-	return nil, errSurprise
-}
-
-func TestOpen(t *testing.T) {
-	peterKey := "PeterNeumann+c74f20a3+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW"
-	peterVerifier, err := NewVerifier(peterKey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	enochKey := "EnochRoot+af0cfe78+ATtqJ7zOtqQtYqOo0CpvDXNlMhV3HeJDpjrASKGLWdop"
-	enochVerifier, err := NewVerifier(enochKey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	text := `If you think cryptography is the answer to your problem,
-then you don't know what your problem is.
-`
-	peterSig := "— PeterNeumann x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=\n"
-	enochSig := "— EnochRoot rwz+eBzmZa0SO3NbfRGzPCpDckykFXSdeX+MNtCOXm2/5n2tiOHp+vAF1aGrQ5ovTG01oOTGwnWLox33WWd1RvMc+QQ=\n"
-
-	peter := Signature{"PeterNeumann", 0xc74f20a3, "x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM="}
-	enoch := Signature{"EnochRoot", 0xaf0cfe78, "rwz+eBzmZa0SO3NbfRGzPCpDckykFXSdeX+MNtCOXm2/5n2tiOHp+vAF1aGrQ5ovTG01oOTGwnWLox33WWd1RvMc+QQ="}
-
-	// Check one signature verified, one not.
-	n, err := Open([]byte(text+"\n"+peterSig+enochSig), VerifierList(peterVerifier))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if n.Text != text {
-		t.Errorf("n.Text = %q, want %q", n.Text, text)
-	}
-	if len(n.Sigs) != 1 || n.Sigs[0] != peter {
-		t.Errorf("n.Sigs:\nhave %v\nwant %v", n.Sigs, []Signature{peter})
-	}
-	if len(n.UnverifiedSigs) != 1 || n.UnverifiedSigs[0] != enoch {
-		t.Errorf("n.UnverifiedSigs:\nhave %v\nwant %v", n.Sigs, []Signature{peter})
-	}
-
-	// Check both verified.
-	n, err = Open([]byte(text+"\n"+peterSig+enochSig), VerifierList(peterVerifier, enochVerifier))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(n.Sigs) != 2 || n.Sigs[0] != peter || n.Sigs[1] != enoch {
-		t.Errorf("n.Sigs:\nhave %v\nwant %v", n.Sigs, []Signature{peter, enoch})
-	}
-	if len(n.UnverifiedSigs) != 0 {
-		t.Errorf("n.UnverifiedSigs:\nhave %v\nwant %v", n.Sigs, []Signature{})
-	}
-
-	// Check both unverified.
-	n, err = Open([]byte(text+"\n"+peterSig+enochSig), VerifierList())
-	if n != nil || err == nil {
-		t.Fatalf("Open unverified = %v, %v, want nil, error", n, err)
-	}
-	e, ok := err.(*UnverifiedNoteError)
-	if !ok {
-		t.Fatalf("Open unverified: err is %T, want *UnverifiedNoteError", err)
-	}
-	if err.Error() != "note has no verifiable signatures" {
-		t.Fatalf("Open unverified: err.Error() = %q, want %q", err.Error(), "note has no verifiable signatures")
-	}
-
-	n = e.Note
-	if n == nil {
-		t.Fatalf("Open unverified: missing note in UnverifiedNoteError")
-	}
-	if len(n.Sigs) != 0 {
-		t.Errorf("n.Sigs:\nhave %v\nwant %v", n.Sigs, []Signature{})
-	}
-	if len(n.UnverifiedSigs) != 2 || n.UnverifiedSigs[0] != peter || n.UnverifiedSigs[1] != enoch {
-		t.Errorf("n.UnverifiedSigs:\nhave %v\nwant %v", n.Sigs, []Signature{peter, enoch})
-	}
-
-	// Check duplicated verifier.
-	_, err = Open([]byte(text+"\n"+enochSig), VerifierList(enochVerifier, peterVerifier, enochVerifier))
-	if err == nil || err.Error() != "ambiguous key EnochRoot+af0cfe78" {
-		t.Fatalf("Open with duplicated verifier: err=%v, want ambiguous key", err)
-	}
-
-	// Check unused duplicated verifier.
-	_, err = Open([]byte(text+"\n"+peterSig), VerifierList(enochVerifier, peterVerifier, enochVerifier))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Check too many signatures.
-	n, err = Open([]byte(text+"\n"+strings.Repeat(peterSig, 101)), VerifierList(peterVerifier))
-	if n != nil || err == nil || err.Error() != "malformed note" {
-		t.Fatalf("Open too many verified signatures = %v, %v, want nil, malformed note error", n, err)
-	}
-	n, err = Open([]byte(text+"\n"+strings.Repeat(peterSig, 101)), VerifierList())
-	if n != nil || err == nil || err.Error() != "malformed note" {
-		t.Fatalf("Open too many verified signatures = %v, %v, want nil, malformed note error", n, err)
-	}
-
-	// Invalid signature.
-	n, err = Open([]byte(text+"\n"+peterSig[:60]+"ABCD"+peterSig[60:]), VerifierList(peterVerifier))
-	if n != nil || err == nil || err.Error() != "invalid signature for key PeterNeumann+c74f20a3" {
-		t.Fatalf("Open too many verified signatures = %v, %v, want nil, invalid signature error", n, err)
-	}
-
-	// Duplicated verified and unverified signatures.
-	enochABCD := Signature{"EnochRoot", 0xaf0cfe78, "rwz+eBzmZa0SO3NbfRGzPCpDckykFXSdeX+MNtCOXm2/5n" + "ABCD" + "2tiOHp+vAF1aGrQ5ovTG01oOTGwnWLox33WWd1RvMc+QQ="}
-	n, err = Open([]byte(text+"\n"+peterSig+peterSig+enochSig+enochSig+enochSig[:60]+"ABCD"+enochSig[60:]), VerifierList(peterVerifier))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(n.Sigs) != 1 || n.Sigs[0] != peter {
-		t.Errorf("n.Sigs:\nhave %v\nwant %v", n.Sigs, []Signature{peter})
-	}
-	if len(n.UnverifiedSigs) != 2 || n.UnverifiedSigs[0] != enoch || n.UnverifiedSigs[1] != enochABCD {
-		t.Errorf("n.UnverifiedSigs:\nhave %v\nwant %v", n.UnverifiedSigs, []Signature{enoch, enochABCD})
-	}
-
-	// Invalid encoded message syntax.
-	badMsgs := []string{
-		text,
-		text + "\n",
-		text + "\n" + peterSig[:len(peterSig)-1],
-		"\x01" + text + "\n" + peterSig,
-		"\xff" + text + "\n" + peterSig,
-		text + "\n" + "— Bad Name x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=",
-		text + "\n" + peterSig + "Unexpected line.\n",
-	}
-	for _, msg := range badMsgs {
-		n, err := Open([]byte(msg), VerifierList(peterVerifier))
-		if n != nil || err == nil || err.Error() != "malformed note" {
-			t.Fatalf("Open bad msg = %v, %v, want nil, malformed note error\nmsg:\n%s", n, err, msg)
-		}
-	}
-}
-
-func BenchmarkOpen(b *testing.B) {
-	vkey := "PeterNeumann+c74f20a3+ARpc2QcUPDhMQegwxbzhKqiBfsVkmqq/LDE4izWy10TW"
-	msg := []byte("If you think cryptography is the answer to your problem,\n" +
-		"then you don't know what your problem is.\n" +
-		"\n" +
-		"— PeterNeumann x08go/ZJkuBS9UG/SffcvIAQxVBtiFupLLr8pAcElZInNIuGUgYN1FFYC2pZSNXgKvqfqdngotpRZb6KE6RyyBwJnAM=\n")
-
-	verifier, err := NewVerifier(vkey)
-	if err != nil {
-		b.Fatal(err)
-	}
-	verifiers := VerifierList(verifier)
-	verifiers0 := VerifierList()
-
-	// Try with 0 signatures and 1 signature so we can tell how much each signature adds.
-
-	b.Run("Sig0", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			_, err := Open(msg, verifiers0)
-			e, ok := err.(*UnverifiedNoteError)
-			if !ok {
-				b.Fatal("expected UnverifiedNoteError")
-			}
-			n := e.Note
-			if len(n.Sigs) != 0 || len(n.UnverifiedSigs) != 1 {
-				b.Fatal("wrong signature count")
-			}
-		}
-	})
-
-	b.Run("Sig1", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			n, err := Open(msg, verifiers)
-			if err != nil {
-				b.Fatal(err)
-			}
-			if len(n.Sigs) != 1 || len(n.UnverifiedSigs) != 0 {
-				b.Fatal("wrong signature count")
-			}
-		}
-	})
-}
diff --git a/libgo/go/cmd/go/internal/renameio/renameio_test.go b/libgo/go/cmd/go/internal/renameio/renameio_test.go
index 81dba6d..ee2f3ba 100644
--- a/libgo/go/cmd/go/internal/renameio/renameio_test.go
+++ b/libgo/go/cmd/go/internal/renameio/renameio_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//+build !plan9
+// +build !plan9
 
 package renameio
 
@@ -131,10 +131,18 @@
 	}
 
 	var minReadSuccesses int64 = attempts
-	if runtime.GOOS == "windows" {
+
+	switch runtime.GOOS {
+	case "windows":
 		// Windows produces frequent "Access is denied" errors under heavy rename load.
-		// As long as those are the only errors and *some* of the writes succeed, we're happy.
+		// As long as those are the only errors and *some* of the reads succeed, we're happy.
 		minReadSuccesses = attempts / 4
+
+	case "darwin":
+		// The filesystem on macOS 10.14 occasionally fails with "no such file or
+		// directory" errors. See https://golang.org/issue/33041. The flake rate is
+		// fairly low, so ensure that at least 75% of attempts succeed.
+		minReadSuccesses = attempts - (attempts / 4)
 	}
 
 	if readSuccesses < minReadSuccesses {
diff --git a/libgo/go/cmd/go/internal/renameio/umask_test.go b/libgo/go/cmd/go/internal/renameio/umask_test.go
index 1a471c9..d75d67c 100644
--- a/libgo/go/cmd/go/internal/renameio/umask_test.go
+++ b/libgo/go/cmd/go/internal/renameio/umask_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//+build !nacl,!plan9,!windows,!js
+// +build !plan9,!windows,!js
 
 package renameio
 
@@ -19,6 +19,7 @@
 	if err != nil {
 		t.Fatalf("Failed to create temporary directory: %v", err)
 	}
+	defer os.RemoveAll(dir)
 
 	const mode = 0644
 	const umask = 0007
@@ -29,7 +30,6 @@
 	if err != nil {
 		t.Fatalf("Failed to write file: %v", err)
 	}
-	defer os.RemoveAll(dir)
 
 	fi, err := os.Stat(file)
 	if err != nil {
diff --git a/libgo/go/cmd/go/internal/robustio/robustio_darwin.go b/libgo/go/cmd/go/internal/robustio/robustio_darwin.go
new file mode 100644
index 0000000..99fd8eb
--- /dev/null
+++ b/libgo/go/cmd/go/internal/robustio/robustio_darwin.go
@@ -0,0 +1,21 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package robustio
+
+import (
+	"errors"
+	"syscall"
+)
+
+const errFileNotFound = syscall.ENOENT
+
+// isEphemeralError returns true if err may be resolved by waiting.
+func isEphemeralError(err error) bool {
+	var errno syscall.Errno
+	if errors.As(err, &errno) {
+		return errno == errFileNotFound
+	}
+	return false
+}
diff --git a/libgo/go/cmd/go/internal/robustio/robustio_flaky.go b/libgo/go/cmd/go/internal/robustio/robustio_flaky.go
new file mode 100644
index 0000000..e57c8c7
--- /dev/null
+++ b/libgo/go/cmd/go/internal/robustio/robustio_flaky.go
@@ -0,0 +1,92 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows darwin
+
+package robustio
+
+import (
+	"errors"
+	"io/ioutil"
+	"math/rand"
+	"os"
+	"syscall"
+	"time"
+)
+
+const arbitraryTimeout = 500 * time.Millisecond
+
+// retry retries ephemeral errors from f up to an arbitrary timeout
+// to work around filesystem flakiness on Windows and Darwin.
+func retry(f func() (err error, mayRetry bool)) error {
+	var (
+		bestErr     error
+		lowestErrno syscall.Errno
+		start       time.Time
+		nextSleep   time.Duration = 1 * time.Millisecond
+	)
+	for {
+		err, mayRetry := f()
+		if err == nil || !mayRetry {
+			return err
+		}
+
+		var errno syscall.Errno
+		if errors.As(err, &errno) && (lowestErrno == 0 || errno < lowestErrno) {
+			bestErr = err
+			lowestErrno = errno
+		} else if bestErr == nil {
+			bestErr = err
+		}
+
+		if start.IsZero() {
+			start = time.Now()
+		} else if d := time.Since(start) + nextSleep; d >= arbitraryTimeout {
+			break
+		}
+		time.Sleep(nextSleep)
+		nextSleep += time.Duration(rand.Int63n(int64(nextSleep)))
+	}
+
+	return bestErr
+}
+
+// rename is like os.Rename, but retries ephemeral errors.
+//
+// On Windows it wraps os.Rename, which (as of 2019-06-04) uses MoveFileEx with
+// MOVEFILE_REPLACE_EXISTING.
+//
+// Windows also provides a different system call, ReplaceFile,
+// that provides similar semantics, but perhaps preserves more metadata. (The
+// documentation on the differences between the two is very sparse.)
+//
+// Empirical error rates with MoveFileEx are lower under modest concurrency, so
+// for now we're sticking with what the os package already provides.
+func rename(oldpath, newpath string) (err error) {
+	return retry(func() (err error, mayRetry bool) {
+		err = os.Rename(oldpath, newpath)
+		return err, isEphemeralError(err)
+	})
+}
+
+// readFile is like ioutil.ReadFile, but retries ephemeral errors.
+func readFile(filename string) ([]byte, error) {
+	var b []byte
+	err := retry(func() (err error, mayRetry bool) {
+		b, err = ioutil.ReadFile(filename)
+
+		// Unlike in rename, we do not retry errFileNotFound here: it can occur
+		// as a spurious error, but the file may also genuinely not exist, so the
+		// increase in robustness is probably not worth the extra latency.
+		return err, isEphemeralError(err) && !errors.Is(err, errFileNotFound)
+	})
+	return b, err
+}
+
+func removeAll(path string) error {
+	return retry(func() (err error, mayRetry bool) {
+		err = os.RemoveAll(path)
+		return err, isEphemeralError(err)
+	})
+}
diff --git a/libgo/go/cmd/go/internal/robustio/robustio_other.go b/libgo/go/cmd/go/internal/robustio/robustio_other.go
index 91ca56c..907b556 100644
--- a/libgo/go/cmd/go/internal/robustio/robustio_other.go
+++ b/libgo/go/cmd/go/internal/robustio/robustio_other.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//+build !windows
+// +build !windows,!darwin
 
 package robustio
 
diff --git a/libgo/go/cmd/go/internal/robustio/robustio_windows.go b/libgo/go/cmd/go/internal/robustio/robustio_windows.go
index a3d94e5..687dcb6 100644
--- a/libgo/go/cmd/go/internal/robustio/robustio_windows.go
+++ b/libgo/go/cmd/go/internal/robustio/robustio_windows.go
@@ -7,88 +7,10 @@
 import (
 	"errors"
 	"internal/syscall/windows"
-	"io/ioutil"
-	"math/rand"
-	"os"
 	"syscall"
-	"time"
 )
 
-const arbitraryTimeout = 500 * time.Millisecond
-
-// retry retries ephemeral errors from f up to an arbitrary timeout
-// to work around spurious filesystem errors on Windows
-func retry(f func() (err error, mayRetry bool)) error {
-	var (
-		bestErr     error
-		lowestErrno syscall.Errno
-		start       time.Time
-		nextSleep   time.Duration = 1 * time.Millisecond
-	)
-	for {
-		err, mayRetry := f()
-		if err == nil || !mayRetry {
-			return err
-		}
-
-		var errno syscall.Errno
-		if errors.As(err, &errno) && (lowestErrno == 0 || errno < lowestErrno) {
-			bestErr = err
-			lowestErrno = errno
-		} else if bestErr == nil {
-			bestErr = err
-		}
-
-		if start.IsZero() {
-			start = time.Now()
-		} else if d := time.Since(start) + nextSleep; d >= arbitraryTimeout {
-			break
-		}
-		time.Sleep(nextSleep)
-		nextSleep += time.Duration(rand.Int63n(int64(nextSleep)))
-	}
-
-	return bestErr
-}
-
-// rename is like os.Rename, but retries ephemeral errors.
-//
-// It wraps os.Rename, which (as of 2019-06-04) uses MoveFileEx with
-// MOVEFILE_REPLACE_EXISTING.
-//
-// Windows also provides a different system call, ReplaceFile,
-// that provides similar semantics, but perhaps preserves more metadata. (The
-// documentation on the differences between the two is very sparse.)
-//
-// Empirical error rates with MoveFileEx are lower under modest concurrency, so
-// for now we're sticking with what the os package already provides.
-func rename(oldpath, newpath string) (err error) {
-	return retry(func() (err error, mayRetry bool) {
-		err = os.Rename(oldpath, newpath)
-		return err, isEphemeralError(err)
-	})
-}
-
-// readFile is like ioutil.ReadFile, but retries ephemeral errors.
-func readFile(filename string) ([]byte, error) {
-	var b []byte
-	err := retry(func() (err error, mayRetry bool) {
-		b, err = ioutil.ReadFile(filename)
-
-		// Unlike in rename, we do not retry ERROR_FILE_NOT_FOUND here: it can occur
-		// as a spurious error, but the file may also genuinely not exist, so the
-		// increase in robustness is probably not worth the extra latency.
-		return err, isEphemeralError(err) && !errors.Is(err, syscall.ERROR_FILE_NOT_FOUND)
-	})
-	return b, err
-}
-
-func removeAll(path string) error {
-	return retry(func() (err error, mayRetry bool) {
-		err = os.RemoveAll(path)
-		return err, isEphemeralError(err)
-	})
-}
+const errFileNotFound = syscall.ERROR_FILE_NOT_FOUND
 
 // isEphemeralError returns true if err may be resolved by waiting.
 func isEphemeralError(err error) bool {
diff --git a/libgo/go/cmd/go/internal/run/run.go b/libgo/go/cmd/go/internal/run/run.go
index 71da5ad..2edae38 100644
--- a/libgo/go/cmd/go/internal/run/run.go
+++ b/libgo/go/cmd/go/internal/run/run.go
@@ -33,7 +33,7 @@
 If the -exec flag is not given, GOOS or GOARCH is different from the system
 default, and a program named go_$GOOS_$GOARCH_exec can be found
 on the current search path, 'go run' invokes the binary using that program,
-for example 'go_nacl_386_exec a.out arguments...'. This allows execution of
+for example 'go_js_wasm_exec a.out arguments...'. This allows execution of
 cross-compiled programs when a simulator or other execution method is
 available.
 
@@ -49,7 +49,7 @@
 func init() {
 	CmdRun.Run = runRun // break init loop
 
-	work.AddBuildFlags(CmdRun)
+	work.AddBuildFlags(CmdRun, work.DefaultBuildFlags)
 	CmdRun.Flag.Var((*base.StringsFlag)(&work.ExecCmd), "exec", "")
 }
 
diff --git a/libgo/go/cmd/go/internal/search/search.go b/libgo/go/cmd/go/internal/search/search.go
index 0167c8d..ad33e60 100644
--- a/libgo/go/cmd/go/internal/search/search.go
+++ b/libgo/go/cmd/go/internal/search/search.go
@@ -125,32 +125,43 @@
 	modRoot = dir
 }
 
-// MatchPackagesInFS is like allPackages but is passed a pattern
-// beginning ./ or ../, meaning it should scan the tree rooted
-// at the given directory. There are ... in the pattern too.
-// (See go help packages for pattern syntax.)
+// MatchPackagesInFS is like MatchPackages but is passed a pattern that
+// begins with an absolute path or "./" or "../". On Windows, the pattern may
+// use slash or backslash separators or a mix of both.
+//
+// MatchPackagesInFS scans the tree rooted at the directory that contains the
+// first "..." wildcard and returns a match with packages that
 func MatchPackagesInFS(pattern string) *Match {
 	m := &Match{
 		Pattern: pattern,
 		Literal: false,
 	}
 
+	// Clean the path and create a matching predicate.
+	// filepath.Clean removes "./" prefixes (and ".\" on Windows). We need to
+	// preserve these, since they are meaningful in MatchPattern and in
+	// returned import paths.
+	cleanPattern := filepath.Clean(pattern)
+	isLocal := strings.HasPrefix(pattern, "./") || (os.PathSeparator == '\\' && strings.HasPrefix(pattern, `.\`))
+	prefix := ""
+	if cleanPattern != "." && isLocal {
+		prefix = "./"
+		cleanPattern = "." + string(os.PathSeparator) + cleanPattern
+	}
+	slashPattern := filepath.ToSlash(cleanPattern)
+	match := MatchPattern(slashPattern)
+
 	// Find directory to begin the scan.
 	// Could be smarter but this one optimization
 	// is enough for now, since ... is usually at the
 	// end of a path.
-	i := strings.Index(pattern, "...")
-	dir, _ := path.Split(pattern[:i])
+	i := strings.Index(cleanPattern, "...")
+	dir, _ := filepath.Split(cleanPattern[:i])
 
 	// pattern begins with ./ or ../.
 	// path.Clean will discard the ./ but not the ../.
 	// We need to preserve the ./ for pattern matching
 	// and in the returned import paths.
-	prefix := ""
-	if strings.HasPrefix(pattern, "./") {
-		prefix = "./"
-	}
-	match := MatchPattern(pattern)
 
 	if modRoot != "" {
 		abs, err := filepath.Abs(dir)
@@ -241,7 +252,7 @@
 //
 // First, /... at the end of the pattern can match an empty string,
 // so that net/... matches both net and packages in its subdirectories, like net/http.
-// Second, any slash-separted pattern element containing a wildcard never
+// Second, any slash-separated pattern element containing a wildcard never
 // participates in a match of the "vendor" element in the path of a vendored
 // package, so that ./... does not match packages in subdirectories of
 // ./vendor or ./mycode/vendor, but ./vendor/... and ./mycode/vendor/... do.
@@ -361,32 +372,49 @@
 	return out
 }
 
-// CleanPatterns returns the patterns to use for the given
-// command line. It canonicalizes the patterns but does not
-// evaluate any matches.
+// CleanPatterns returns the patterns to use for the given command line. It
+// canonicalizes the patterns but does not evaluate any matches. For patterns
+// that are not local or absolute paths, it preserves text after '@' to avoid
+// modifying version queries.
 func CleanPatterns(patterns []string) []string {
 	if len(patterns) == 0 {
 		return []string{"."}
 	}
 	var out []string
 	for _, a := range patterns {
-		// Arguments are supposed to be import paths, but
-		// as a courtesy to Windows developers, rewrite \ to /
-		// in command-line arguments. Handles .\... and so on.
-		if filepath.Separator == '\\' {
-			a = strings.ReplaceAll(a, `\`, `/`)
+		var p, v string
+		if build.IsLocalImport(a) || filepath.IsAbs(a) {
+			p = a
+		} else if i := strings.IndexByte(a, '@'); i < 0 {
+			p = a
+		} else {
+			p = a[:i]
+			v = a[i:]
 		}
 
-		// Put argument in canonical form, but preserve leading ./.
-		if strings.HasPrefix(a, "./") {
-			a = "./" + path.Clean(a)
-			if a == "./." {
-				a = "."
-			}
+		// Arguments may be either file paths or import paths.
+		// As a courtesy to Windows developers, rewrite \ to /
+		// in arguments that look like import paths.
+		// Don't replace slashes in absolute paths.
+		if filepath.IsAbs(p) {
+			p = filepath.Clean(p)
 		} else {
-			a = path.Clean(a)
+			if filepath.Separator == '\\' {
+				p = strings.ReplaceAll(p, `\`, `/`)
+			}
+
+			// Put argument in canonical form, but preserve leading ./.
+			if strings.HasPrefix(p, "./") {
+				p = "./" + path.Clean(p)
+				if p == "./." {
+					p = "."
+				}
+			} else {
+				p = path.Clean(p)
+			}
 		}
-		out = append(out, a)
+
+		out = append(out, p+v)
 	}
 	return out
 }
diff --git a/libgo/go/cmd/go/internal/search/search_test.go b/libgo/go/cmd/go/internal/search/search_test.go
index 0bef765..5f27daf 100644
--- a/libgo/go/cmd/go/internal/search/search_test.go
+++ b/libgo/go/cmd/go/internal/search/search_test.go
@@ -33,7 +33,7 @@
 	match net net/http
 	not not/http not/net/http netchan
 
-	# Second, any slash-separted pattern element containing a wildcard never
+	# Second, any slash-separated pattern element containing a wildcard never
 	# participates in a match of the "vendor" element in the path of a vendored
 	# package, so that ./... does not match packages in subdirectories of
 	# ./vendor or ./mycode/vendor, but ./vendor/... and ./mycode/vendor/... do.
diff --git a/libgo/go/cmd/go/internal/semver/semver_test.go b/libgo/go/cmd/go/internal/semver/semver_test.go
deleted file mode 100644
index 77025a4..0000000
--- a/libgo/go/cmd/go/internal/semver/semver_test.go
+++ /dev/null
@@ -1,183 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package semver
-
-import (
-	"strings"
-	"testing"
-)
-
-var tests = []struct {
-	in  string
-	out string
-}{
-	{"bad", ""},
-	{"v1-alpha.beta.gamma", ""},
-	{"v1-pre", ""},
-	{"v1+meta", ""},
-	{"v1-pre+meta", ""},
-	{"v1.2-pre", ""},
-	{"v1.2+meta", ""},
-	{"v1.2-pre+meta", ""},
-	{"v1.0.0-alpha", "v1.0.0-alpha"},
-	{"v1.0.0-alpha.1", "v1.0.0-alpha.1"},
-	{"v1.0.0-alpha.beta", "v1.0.0-alpha.beta"},
-	{"v1.0.0-beta", "v1.0.0-beta"},
-	{"v1.0.0-beta.2", "v1.0.0-beta.2"},
-	{"v1.0.0-beta.11", "v1.0.0-beta.11"},
-	{"v1.0.0-rc.1", "v1.0.0-rc.1"},
-	{"v1", "v1.0.0"},
-	{"v1.0", "v1.0.0"},
-	{"v1.0.0", "v1.0.0"},
-	{"v1.2", "v1.2.0"},
-	{"v1.2.0", "v1.2.0"},
-	{"v1.2.3-456", "v1.2.3-456"},
-	{"v1.2.3-456.789", "v1.2.3-456.789"},
-	{"v1.2.3-456-789", "v1.2.3-456-789"},
-	{"v1.2.3-456a", "v1.2.3-456a"},
-	{"v1.2.3-pre", "v1.2.3-pre"},
-	{"v1.2.3-pre+meta", "v1.2.3-pre"},
-	{"v1.2.3-pre.1", "v1.2.3-pre.1"},
-	{"v1.2.3-zzz", "v1.2.3-zzz"},
-	{"v1.2.3", "v1.2.3"},
-	{"v1.2.3+meta", "v1.2.3"},
-	{"v1.2.3+meta-pre", "v1.2.3"},
-	{"v1.2.3+meta-pre.sha.256a", "v1.2.3"},
-}
-
-func TestIsValid(t *testing.T) {
-	for _, tt := range tests {
-		ok := IsValid(tt.in)
-		if ok != (tt.out != "") {
-			t.Errorf("IsValid(%q) = %v, want %v", tt.in, ok, !ok)
-		}
-	}
-}
-
-func TestCanonical(t *testing.T) {
-	for _, tt := range tests {
-		out := Canonical(tt.in)
-		if out != tt.out {
-			t.Errorf("Canonical(%q) = %q, want %q", tt.in, out, tt.out)
-		}
-	}
-}
-
-func TestMajor(t *testing.T) {
-	for _, tt := range tests {
-		out := Major(tt.in)
-		want := ""
-		if i := strings.Index(tt.out, "."); i >= 0 {
-			want = tt.out[:i]
-		}
-		if out != want {
-			t.Errorf("Major(%q) = %q, want %q", tt.in, out, want)
-		}
-	}
-}
-
-func TestMajorMinor(t *testing.T) {
-	for _, tt := range tests {
-		out := MajorMinor(tt.in)
-		var want string
-		if tt.out != "" {
-			want = tt.in
-			if i := strings.Index(want, "+"); i >= 0 {
-				want = want[:i]
-			}
-			if i := strings.Index(want, "-"); i >= 0 {
-				want = want[:i]
-			}
-			switch strings.Count(want, ".") {
-			case 0:
-				want += ".0"
-			case 1:
-				// ok
-			case 2:
-				want = want[:strings.LastIndex(want, ".")]
-			}
-		}
-		if out != want {
-			t.Errorf("MajorMinor(%q) = %q, want %q", tt.in, out, want)
-		}
-	}
-}
-
-func TestPrerelease(t *testing.T) {
-	for _, tt := range tests {
-		pre := Prerelease(tt.in)
-		var want string
-		if tt.out != "" {
-			if i := strings.Index(tt.out, "-"); i >= 0 {
-				want = tt.out[i:]
-			}
-		}
-		if pre != want {
-			t.Errorf("Prerelease(%q) = %q, want %q", tt.in, pre, want)
-		}
-	}
-}
-
-func TestBuild(t *testing.T) {
-	for _, tt := range tests {
-		build := Build(tt.in)
-		var want string
-		if tt.out != "" {
-			if i := strings.Index(tt.in, "+"); i >= 0 {
-				want = tt.in[i:]
-			}
-		}
-		if build != want {
-			t.Errorf("Build(%q) = %q, want %q", tt.in, build, want)
-		}
-	}
-}
-
-func TestCompare(t *testing.T) {
-	for i, ti := range tests {
-		for j, tj := range tests {
-			cmp := Compare(ti.in, tj.in)
-			var want int
-			if ti.out == tj.out {
-				want = 0
-			} else if i < j {
-				want = -1
-			} else {
-				want = +1
-			}
-			if cmp != want {
-				t.Errorf("Compare(%q, %q) = %d, want %d", ti.in, tj.in, cmp, want)
-			}
-		}
-	}
-}
-
-func TestMax(t *testing.T) {
-	for i, ti := range tests {
-		for j, tj := range tests {
-			max := Max(ti.in, tj.in)
-			want := Canonical(ti.in)
-			if i < j {
-				want = Canonical(tj.in)
-			}
-			if max != want {
-				t.Errorf("Max(%q, %q) = %q, want %q", ti.in, tj.in, max, want)
-			}
-		}
-	}
-}
-
-var (
-	v1 = "v1.0.0+metadata-dash"
-	v2 = "v1.0.0+metadata-dash1"
-)
-
-func BenchmarkCompare(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		if Compare(v1, v2) != 0 {
-			b.Fatalf("bad compare")
-		}
-	}
-}
diff --git a/libgo/go/cmd/go/internal/sumweb/client_test.go b/libgo/go/cmd/go/internal/sumweb/client_test.go
deleted file mode 100644
index 83a182a..0000000
--- a/libgo/go/cmd/go/internal/sumweb/client_test.go
+++ /dev/null
@@ -1,460 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package sumweb
-
-import (
-	"bytes"
-	"fmt"
-	"strings"
-	"sync"
-	"testing"
-
-	"cmd/go/internal/note"
-	"cmd/go/internal/tlog"
-)
-
-const (
-	testName        = "localhost.localdev/sumdb"
-	testVerifierKey = "localhost.localdev/sumdb+00000c67+AcTrnkbUA+TU4heY3hkjiSES/DSQniBqIeQ/YppAUtK6"
-	testSignerKey   = "PRIVATE+KEY+localhost.localdev/sumdb+00000c67+AXu6+oaVaOYuQOFrf1V59JK1owcFlJcHwwXHDfDGxSPk"
-)
-
-func TestConnLookup(t *testing.T) {
-	tc := newTestClient(t)
-	tc.mustHaveLatest(1)
-
-	// Basic lookup.
-	tc.mustLookup("rsc.io/sampler", "v1.3.0", "rsc.io/sampler v1.3.0 h1:7uVkIFmeBqHfdjD+gZwtXXI+RODJ2Wc4O7MPEh/QiW4=")
-	tc.mustHaveLatest(3)
-
-	// Everything should now be cached, both for the original package and its /go.mod.
-	tc.getOK = false
-	tc.mustLookup("rsc.io/sampler", "v1.3.0", "rsc.io/sampler v1.3.0 h1:7uVkIFmeBqHfdjD+gZwtXXI+RODJ2Wc4O7MPEh/QiW4=")
-	tc.mustLookup("rsc.io/sampler", "v1.3.0/go.mod", "rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=")
-	tc.mustHaveLatest(3)
-	tc.getOK = true
-	tc.getTileOK = false // the cache has what we need
-
-	// Lookup with multiple returned lines.
-	tc.mustLookup("rsc.io/quote", "v1.5.2", "rsc.io/quote v1.5.2 h1:w5fcysjrx7yqtD/aO+QwRjYZOKnaM9Uh2b40tElTs3Y=\nrsc.io/quote v1.5.2 h2:xyzzy")
-	tc.mustHaveLatest(3)
-
-	// Lookup with need for !-encoding.
-	// rsc.io/Quote is the only record written after rsc.io/samper,
-	// so it is the only one that should need more tiles.
-	tc.getTileOK = true
-	tc.mustLookup("rsc.io/Quote", "v1.5.2", "rsc.io/Quote v1.5.2 h1:uppercase!=")
-	tc.mustHaveLatest(4)
-}
-
-func TestConnBadTiles(t *testing.T) {
-	tc := newTestClient(t)
-
-	flipBits := func() {
-		for url, data := range tc.remote {
-			if strings.Contains(url, "/tile/") {
-				for i := range data {
-					data[i] ^= 0x80
-				}
-			}
-		}
-	}
-
-	// Bad tiles in initial download.
-	tc.mustHaveLatest(1)
-	flipBits()
-	_, err := tc.conn.Lookup("rsc.io/sampler", "v1.3.0")
-	tc.mustError(err, "rsc.io/sampler@v1.3.0: initializing sumweb.Conn: checking tree#1: downloaded inconsistent tile")
-	flipBits()
-	tc.newConn()
-	tc.mustLookup("rsc.io/sampler", "v1.3.0", "rsc.io/sampler v1.3.0 h1:7uVkIFmeBqHfdjD+gZwtXXI+RODJ2Wc4O7MPEh/QiW4=")
-
-	// Bad tiles after initial download.
-	flipBits()
-	_, err = tc.conn.Lookup("rsc.io/Quote", "v1.5.2")
-	tc.mustError(err, "rsc.io/Quote@v1.5.2: checking tree#3 against tree#4: downloaded inconsistent tile")
-	flipBits()
-	tc.newConn()
-	tc.mustLookup("rsc.io/Quote", "v1.5.2", "rsc.io/Quote v1.5.2 h1:uppercase!=")
-
-	// Bad starting tree hash looks like bad tiles.
-	tc.newConn()
-	text := tlog.FormatTree(tlog.Tree{N: 1, Hash: tlog.Hash{}})
-	data, err := note.Sign(&note.Note{Text: string(text)}, tc.signer)
-	if err != nil {
-		tc.t.Fatal(err)
-	}
-	tc.config[testName+"/latest"] = data
-	_, err = tc.conn.Lookup("rsc.io/sampler", "v1.3.0")
-	tc.mustError(err, "rsc.io/sampler@v1.3.0: initializing sumweb.Conn: checking tree#1: downloaded inconsistent tile")
-}
-
-func TestConnFork(t *testing.T) {
-	tc := newTestClient(t)
-	tc2 := tc.fork()
-
-	tc.addRecord("rsc.io/pkg1@v1.5.2", `rsc.io/pkg1 v1.5.2 h1:hash!=
-`)
-	tc.addRecord("rsc.io/pkg1@v1.5.4", `rsc.io/pkg1 v1.5.4 h1:hash!=
-`)
-	tc.mustLookup("rsc.io/pkg1", "v1.5.2", "rsc.io/pkg1 v1.5.2 h1:hash!=")
-
-	tc2.addRecord("rsc.io/pkg1@v1.5.3", `rsc.io/pkg1 v1.5.3 h1:hash!=
-`)
-	tc2.addRecord("rsc.io/pkg1@v1.5.4", `rsc.io/pkg1 v1.5.4 h1:hash!=
-`)
-	tc2.mustLookup("rsc.io/pkg1", "v1.5.4", "rsc.io/pkg1 v1.5.4 h1:hash!=")
-
-	key := "/lookup/rsc.io/pkg1@v1.5.2"
-	tc2.remote[key] = tc.remote[key]
-	_, err := tc2.conn.Lookup("rsc.io/pkg1", "v1.5.2")
-	tc2.mustError(err, ErrSecurity.Error())
-
-	/*
-	   SECURITY ERROR
-	   go.sum database server misbehavior detected!
-
-	   old database:
-	   	go.sum database tree!
-	   	5
-	   	nWzN20+pwMt62p7jbv1/NlN95ePTlHijabv5zO/s36w=
-
-	   	— localhost.localdev/sumdb AAAMZ5/2FVAdMH58kmnz/0h299pwyskEbzDzoa2/YaPdhvLya4YWDFQQxu2TQb5GpwAH4NdWnTwuhILafisyf3CNbgg=
-
-	   new database:
-	   	go.sum database tree
-	   	6
-	   	wc4SkQt52o5W2nQ8To2ARs+mWuUJjss+sdleoiqxMmM=
-
-	   	— localhost.localdev/sumdb AAAMZ6oRNswlEZ6ZZhxrCvgl1MBy+nusq4JU+TG6Fe2NihWLqOzb+y2c2kzRLoCr4tvw9o36ucQEnhc20e4nA4Qc/wc=
-
-	   proof of misbehavior:
-	   	T7i+H/8ER4nXOiw4Bj0koZOkGjkxoNvlI34GpvhHhQg=
-	   	Nsuejv72de9hYNM5bqFv8rv3gm3zJQwv/DT/WNbLDLA=
-	   	mOmqqZ1aI/lzS94oq/JSbj7pD8Rv9S+xDyi12BtVSHo=
-	   	/7Aw5jVSMM9sFjQhaMg+iiDYPMk6decH7QLOGrL9Lx0=
-	*/
-
-	wants := []string{
-		"SECURITY ERROR",
-		"go.sum database server misbehavior detected!",
-		"old database:\n\tgo.sum database tree\n\t5\n",
-		"— localhost.localdev/sumdb AAAMZ5/2FVAd",
-		"new database:\n\tgo.sum database tree\n\t6\n",
-		"— localhost.localdev/sumdb AAAMZ6oRNswl",
-		"proof of misbehavior:\n\tT7i+H/8ER4nXOiw4Bj0k",
-	}
-	text := tc2.security.String()
-	for _, want := range wants {
-		if !strings.Contains(text, want) {
-			t.Fatalf("cannot find %q in security text:\n%s", want, text)
-		}
-	}
-}
-
-func TestConnGONOSUMDB(t *testing.T) {
-	tc := newTestClient(t)
-	tc.conn.SetGONOSUMDB("p,*/q")
-	tc.conn.Lookup("rsc.io/sampler", "v1.3.0") // initialize before we turn off network
-	tc.getOK = false
-
-	ok := []string{
-		"abc",
-		"a/p",
-		"pq",
-		"q",
-		"n/o/p/q",
-	}
-	skip := []string{
-		"p",
-		"p/x",
-		"x/q",
-		"x/q/z",
-	}
-
-	for _, path := range ok {
-		_, err := tc.conn.Lookup(path, "v1.0.0")
-		if err == ErrGONOSUMDB {
-			t.Errorf("Lookup(%q): ErrGONOSUMDB, wanted failed actual lookup", path)
-		}
-	}
-	for _, path := range skip {
-		_, err := tc.conn.Lookup(path, "v1.0.0")
-		if err != ErrGONOSUMDB {
-			t.Errorf("Lookup(%q): %v, wanted ErrGONOSUMDB", path, err)
-		}
-	}
-}
-
-// A testClient is a self-contained client-side testing environment.
-type testClient struct {
-	t          *testing.T // active test
-	conn       *Conn      // conn being tested
-	tileHeight int        // tile height to use (default 2)
-	getOK      bool       // should tc.GetURL succeed?
-	getTileOK  bool       // should tc.GetURL of tiles succeed?
-	treeSize   int64
-	hashes     []tlog.Hash
-	remote     map[string][]byte
-	signer     note.Signer
-
-	// mu protects config, cache, log, security
-	// during concurrent use of the exported methods
-	// by the conn itself (testClient is the Conn's Client,
-	// and the Client methods can both read and write these fields).
-	// Unexported methods invoked directly by the test
-	// (for example, addRecord) need not hold the mutex:
-	// for proper test execution those methods should only
-	// be called when the Conn is idle and not using its Client.
-	// Not holding the mutex in those methods ensures
-	// that if a mistake is made, go test -race will report it.
-	// (Holding the mutex would eliminate the race report but
-	// not the underlying problem.)
-	// Similarly, the get map is not protected by the mutex,
-	// because the Client methods only read it.
-	mu       sync.Mutex // prot
-	config   map[string][]byte
-	cache    map[string][]byte
-	security bytes.Buffer
-}
-
-// newTestClient returns a new testClient that will call t.Fatal on error
-// and has a few records already available on the remote server.
-func newTestClient(t *testing.T) *testClient {
-	tc := &testClient{
-		t:          t,
-		tileHeight: 2,
-		getOK:      true,
-		getTileOK:  true,
-		config:     make(map[string][]byte),
-		cache:      make(map[string][]byte),
-		remote:     make(map[string][]byte),
-	}
-
-	tc.config["key"] = []byte(testVerifierKey + "\n")
-	var err error
-	tc.signer, err = note.NewSigner(testSignerKey)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	tc.newConn()
-
-	tc.addRecord("rsc.io/quote@v1.5.2", `rsc.io/quote v1.5.2 h1:w5fcysjrx7yqtD/aO+QwRjYZOKnaM9Uh2b40tElTs3Y=
-rsc.io/quote v1.5.2/go.mod h1:LzX7hefJvL54yjefDEDHNONDjII0t9xZLPXsUe+TKr0=
-rsc.io/quote v1.5.2 h2:xyzzy
-`)
-
-	tc.addRecord("golang.org/x/text@v0.0.0-20170915032832-14c0d48ead0c", `golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c h1:qgOY6WgZOaTkIIMiVjBQcw93ERBE4m30iBm00nkL0i8=
-golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-`)
-	tc.addRecord("rsc.io/sampler@v1.3.0", `rsc.io/sampler v1.3.0 h1:7uVkIFmeBqHfdjD+gZwtXXI+RODJ2Wc4O7MPEh/QiW4=
-rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
-`)
-	tc.config[testName+"/latest"] = tc.signTree(1)
-
-	tc.addRecord("rsc.io/!quote@v1.5.2", `rsc.io/Quote v1.5.2 h1:uppercase!=
-`)
-	return tc
-}
-
-// newConn resets the Conn associated with tc.
-// This clears any in-memory cache from the Conn
-// but not tc's on-disk cache.
-func (tc *testClient) newConn() {
-	tc.conn = NewConn(tc)
-	tc.conn.SetTileHeight(tc.tileHeight)
-}
-
-// mustLookup does a lookup for path@vers and checks that the lines that come back match want.
-func (tc *testClient) mustLookup(path, vers, want string) {
-	tc.t.Helper()
-	lines, err := tc.conn.Lookup(path, vers)
-	if err != nil {
-		tc.t.Fatal(err)
-	}
-	if strings.Join(lines, "\n") != want {
-		tc.t.Fatalf("Lookup(%q, %q):\n\t%s\nwant:\n\t%s", path, vers, strings.Join(lines, "\n\t"), strings.Replace(want, "\n", "\n\t", -1))
-	}
-}
-
-// mustHaveLatest checks that the on-disk configuration
-// for latest is a tree of size n.
-func (tc *testClient) mustHaveLatest(n int64) {
-	tc.t.Helper()
-
-	latest := tc.config[testName+"/latest"]
-	lines := strings.Split(string(latest), "\n")
-	if len(lines) < 2 || lines[1] != fmt.Sprint(n) {
-		tc.t.Fatalf("/latest should have tree %d, but has:\n%s", n, latest)
-	}
-}
-
-// mustError checks that err's error string contains the text.
-func (tc *testClient) mustError(err error, text string) {
-	tc.t.Helper()
-	if err == nil || !strings.Contains(err.Error(), text) {
-		tc.t.Fatalf("err = %v, want %q", err, text)
-	}
-}
-
-// fork returns a copy of tc.
-// Changes made to the new copy or to tc are not reflected in the other.
-func (tc *testClient) fork() *testClient {
-	tc2 := &testClient{
-		t:          tc.t,
-		getOK:      tc.getOK,
-		getTileOK:  tc.getTileOK,
-		tileHeight: tc.tileHeight,
-		treeSize:   tc.treeSize,
-		hashes:     append([]tlog.Hash{}, tc.hashes...),
-		signer:     tc.signer,
-		config:     copyMap(tc.config),
-		cache:      copyMap(tc.cache),
-		remote:     copyMap(tc.remote),
-	}
-	tc2.newConn()
-	return tc2
-}
-
-func copyMap(m map[string][]byte) map[string][]byte {
-	m2 := make(map[string][]byte)
-	for k, v := range m {
-		m2[k] = v
-	}
-	return m2
-}
-
-// ReadHashes is tc's implementation of tlog.HashReader, for use with
-// tlog.TreeHash and so on.
-func (tc *testClient) ReadHashes(indexes []int64) ([]tlog.Hash, error) {
-	var list []tlog.Hash
-	for _, id := range indexes {
-		list = append(list, tc.hashes[id])
-	}
-	return list, nil
-}
-
-// addRecord adds a log record using the given (!-encoded) key and data.
-func (tc *testClient) addRecord(key, data string) {
-	tc.t.Helper()
-
-	// Create record, add hashes to log tree.
-	id := tc.treeSize
-	tc.treeSize++
-	rec, err := tlog.FormatRecord(id, []byte(data))
-	if err != nil {
-		tc.t.Fatal(err)
-	}
-	hashes, err := tlog.StoredHashesForRecordHash(id, tlog.RecordHash([]byte(data)), tc)
-	if err != nil {
-		tc.t.Fatal(err)
-	}
-	tc.hashes = append(tc.hashes, hashes...)
-
-	// Create lookup result.
-	tc.remote["/lookup/"+key] = append(rec, tc.signTree(tc.treeSize)...)
-
-	// Create new tiles.
-	tiles := tlog.NewTiles(tc.tileHeight, id, tc.treeSize)
-	for _, tile := range tiles {
-		data, err := tlog.ReadTileData(tile, tc)
-		if err != nil {
-			tc.t.Fatal(err)
-		}
-		tc.remote["/"+tile.Path()] = data
-		// TODO delete old partial tiles
-	}
-}
-
-// signTree returns the signed head for the tree of the given size.
-func (tc *testClient) signTree(size int64) []byte {
-	h, err := tlog.TreeHash(size, tc)
-	if err != nil {
-		tc.t.Fatal(err)
-	}
-	text := tlog.FormatTree(tlog.Tree{N: size, Hash: h})
-	data, err := note.Sign(&note.Note{Text: string(text)}, tc.signer)
-	if err != nil {
-		tc.t.Fatal(err)
-	}
-	return data
-}
-
-// ReadRemote is for tc's implementation of Client.
-func (tc *testClient) ReadRemote(path string) ([]byte, error) {
-	// No mutex here because only the Client should be running
-	// and the Client cannot change tc.get.
-	if !tc.getOK {
-		return nil, fmt.Errorf("disallowed remote read %s", path)
-	}
-	if strings.Contains(path, "/tile/") && !tc.getTileOK {
-		return nil, fmt.Errorf("disallowed remote tile read %s", path)
-	}
-
-	data, ok := tc.remote[path]
-	if !ok {
-		return nil, fmt.Errorf("no remote path %s", path)
-	}
-	return data, nil
-}
-
-// ReadConfig is for tc's implementation of Client.
-func (tc *testClient) ReadConfig(file string) ([]byte, error) {
-	tc.mu.Lock()
-	defer tc.mu.Unlock()
-
-	data, ok := tc.config[file]
-	if !ok {
-		return nil, fmt.Errorf("no config %s", file)
-	}
-	return data, nil
-}
-
-// WriteConfig is for tc's implementation of Client.
-func (tc *testClient) WriteConfig(file string, old, new []byte) error {
-	tc.mu.Lock()
-	defer tc.mu.Unlock()
-
-	data := tc.config[file]
-	if !bytes.Equal(old, data) {
-		return ErrWriteConflict
-	}
-	tc.config[file] = new
-	return nil
-}
-
-// ReadCache is for tc's implementation of Client.
-func (tc *testClient) ReadCache(file string) ([]byte, error) {
-	tc.mu.Lock()
-	defer tc.mu.Unlock()
-
-	data, ok := tc.cache[file]
-	if !ok {
-		return nil, fmt.Errorf("no cache %s", file)
-	}
-	return data, nil
-}
-
-// WriteCache is for tc's implementation of Client.
-func (tc *testClient) WriteCache(file string, data []byte) {
-	tc.mu.Lock()
-	defer tc.mu.Unlock()
-
-	tc.cache[file] = data
-}
-
-// Log is for tc's implementation of Client.
-func (tc *testClient) Log(msg string) {
-	tc.t.Log(msg)
-}
-
-// SecurityError is for tc's implementation of Client.
-func (tc *testClient) SecurityError(msg string) {
-	tc.mu.Lock()
-	defer tc.mu.Unlock()
-
-	fmt.Fprintf(&tc.security, "%s\n", strings.TrimRight(msg, "\n"))
-}
diff --git a/libgo/go/cmd/go/internal/sumweb/encode.go b/libgo/go/cmd/go/internal/sumweb/encode.go
deleted file mode 100644
index d044a84..0000000
--- a/libgo/go/cmd/go/internal/sumweb/encode.go
+++ /dev/null
@@ -1,167 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// FS-safe encoding of module paths and versions.
-// Copied from cmd/go/internal/module and unexported.
-
-package sumweb
-
-import (
-	"fmt"
-	"unicode/utf8"
-)
-
-// Safe encodings
-//
-// Module paths appear as substrings of file system paths
-// (in the download cache) and of web server URLs in the proxy protocol.
-// In general we cannot rely on file systems to be case-sensitive,
-// nor can we rely on web servers, since they read from file systems.
-// That is, we cannot rely on the file system to keep rsc.io/QUOTE
-// and rsc.io/quote separate. Windows and macOS don't.
-// Instead, we must never require two different casings of a file path.
-// Because we want the download cache to match the proxy protocol,
-// and because we want the proxy protocol to be possible to serve
-// from a tree of static files (which might be stored on a case-insensitive
-// file system), the proxy protocol must never require two different casings
-// of a URL path either.
-//
-// One possibility would be to make the safe encoding be the lowercase
-// hexadecimal encoding of the actual path bytes. This would avoid ever
-// needing different casings of a file path, but it would be fairly illegible
-// to most programmers when those paths appeared in the file system
-// (including in file paths in compiler errors and stack traces)
-// in web server logs, and so on. Instead, we want a safe encoding that
-// leaves most paths unaltered.
-//
-// The safe encoding is this:
-// replace every uppercase letter with an exclamation mark
-// followed by the letter's lowercase equivalent.
-//
-// For example,
-// github.com/Azure/azure-sdk-for-go ->  github.com/!azure/azure-sdk-for-go.
-// github.com/GoogleCloudPlatform/cloudsql-proxy -> github.com/!google!cloud!platform/cloudsql-proxy
-// github.com/Sirupsen/logrus -> github.com/!sirupsen/logrus.
-//
-// Import paths that avoid upper-case letters are left unchanged.
-// Note that because import paths are ASCII-only and avoid various
-// problematic punctuation (like : < and >), the safe encoding is also ASCII-only
-// and avoids the same problematic punctuation.
-//
-// Import paths have never allowed exclamation marks, so there is no
-// need to define how to encode a literal !.
-//
-// Although paths are disallowed from using Unicode (see pathOK above),
-// the eventual plan is to allow Unicode letters as well, to assume that
-// file systems and URLs are Unicode-safe (storing UTF-8), and apply
-// the !-for-uppercase convention. Note however that not all runes that
-// are different but case-fold equivalent are an upper/lower pair.
-// For example, U+004B ('K'), U+006B ('k'), and U+212A ('K' for Kelvin)
-// are considered to case-fold to each other. When we do add Unicode
-// letters, we must not assume that upper/lower are the only case-equivalent pairs.
-// Perhaps the Kelvin symbol would be disallowed entirely, for example.
-// Or perhaps it would encode as "!!k", or perhaps as "(212A)".
-//
-// Also, it would be nice to allow Unicode marks as well as letters,
-// but marks include combining marks, and then we must deal not
-// only with case folding but also normalization: both U+00E9 ('é')
-// and U+0065 U+0301 ('e' followed by combining acute accent)
-// look the same on the page and are treated by some file systems
-// as the same path. If we do allow Unicode marks in paths, there
-// must be some kind of normalization to allow only one canonical
-// encoding of any character used in an import path.
-
-// encodePath returns the safe encoding of the given module path.
-// It fails if the module path is invalid.
-func encodePath(path string) (encoding string, err error) {
-	return encodeString(path)
-}
-
-// encodeVersion returns the safe encoding of the given module version.
-// Versions are allowed to be in non-semver form but must be valid file names
-// and not contain exclamation marks.
-func encodeVersion(v string) (encoding string, err error) {
-	return encodeString(v)
-}
-
-func encodeString(s string) (encoding string, err error) {
-	haveUpper := false
-	for _, r := range s {
-		if r == '!' || r >= utf8.RuneSelf {
-			// This should be disallowed by CheckPath, but diagnose anyway.
-			// The correctness of the encoding loop below depends on it.
-			return "", fmt.Errorf("internal error: inconsistency in EncodePath")
-		}
-		if 'A' <= r && r <= 'Z' {
-			haveUpper = true
-		}
-	}
-
-	if !haveUpper {
-		return s, nil
-	}
-
-	var buf []byte
-	for _, r := range s {
-		if 'A' <= r && r <= 'Z' {
-			buf = append(buf, '!', byte(r+'a'-'A'))
-		} else {
-			buf = append(buf, byte(r))
-		}
-	}
-	return string(buf), nil
-}
-
-// decodePath returns the module path of the given safe encoding.
-// It fails if the encoding is invalid or encodes an invalid path.
-func decodePath(encoding string) (path string, err error) {
-	path, ok := decodeString(encoding)
-	if !ok {
-		return "", fmt.Errorf("invalid module path encoding %q", encoding)
-	}
-	return path, nil
-}
-
-// decodeVersion returns the version string for the given safe encoding.
-// It fails if the encoding is invalid or encodes an invalid version.
-// Versions are allowed to be in non-semver form but must be valid file names
-// and not contain exclamation marks.
-func decodeVersion(encoding string) (v string, err error) {
-	v, ok := decodeString(encoding)
-	if !ok {
-		return "", fmt.Errorf("invalid version encoding %q", encoding)
-	}
-	return v, nil
-}
-
-func decodeString(encoding string) (string, bool) {
-	var buf []byte
-
-	bang := false
-	for _, r := range encoding {
-		if r >= utf8.RuneSelf {
-			return "", false
-		}
-		if bang {
-			bang = false
-			if r < 'a' || 'z' < r {
-				return "", false
-			}
-			buf = append(buf, byte(r+'A'-'a'))
-			continue
-		}
-		if r == '!' {
-			bang = true
-			continue
-		}
-		if 'A' <= r && r <= 'Z' {
-			return "", false
-		}
-		buf = append(buf, byte(r))
-	}
-	if bang {
-		return "", false
-	}
-	return string(buf), true
-}
diff --git a/libgo/go/cmd/go/internal/sumweb/encode_test.go b/libgo/go/cmd/go/internal/sumweb/encode_test.go
deleted file mode 100644
index 9ed5e4a..0000000
--- a/libgo/go/cmd/go/internal/sumweb/encode_test.go
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package sumweb
-
-import "testing"
-
-var encodeTests = []struct {
-	path string
-	enc  string // empty means same as path
-}{
-	{path: "ascii.com/abcdefghijklmnopqrstuvwxyz.-+/~_0123456789"},
-	{path: "github.com/GoogleCloudPlatform/omega", enc: "github.com/!google!cloud!platform/omega"},
-}
-
-func TestEncodePath(t *testing.T) {
-	// Check encodings.
-	for _, tt := range encodeTests {
-		enc, err := encodePath(tt.path)
-		if err != nil {
-			t.Errorf("encodePath(%q): unexpected error: %v", tt.path, err)
-			continue
-		}
-		want := tt.enc
-		if want == "" {
-			want = tt.path
-		}
-		if enc != want {
-			t.Errorf("encodePath(%q) = %q, want %q", tt.path, enc, want)
-		}
-	}
-}
-
-var badDecode = []string{
-	"github.com/GoogleCloudPlatform/omega",
-	"github.com/!google!cloud!platform!/omega",
-	"github.com/!0google!cloud!platform/omega",
-	"github.com/!_google!cloud!platform/omega",
-	"github.com/!!google!cloud!platform/omega",
-}
-
-func TestDecodePath(t *testing.T) {
-	// Check invalid decodings.
-	for _, bad := range badDecode {
-		_, err := decodePath(bad)
-		if err == nil {
-			t.Errorf("DecodePath(%q): succeeded, want error (invalid decoding)", bad)
-		}
-	}
-
-	// Check encodings.
-	for _, tt := range encodeTests {
-		enc := tt.enc
-		if enc == "" {
-			enc = tt.path
-		}
-		path, err := decodePath(enc)
-		if err != nil {
-			t.Errorf("decodePath(%q): unexpected error: %v", enc, err)
-			continue
-		}
-		if path != tt.path {
-			t.Errorf("decodePath(%q) = %q, want %q", enc, path, tt.path)
-		}
-	}
-}
diff --git a/libgo/go/cmd/go/internal/test/test.go b/libgo/go/cmd/go/internal/test/test.go
index 9500001..fb011d4 100644
--- a/libgo/go/cmd/go/internal/test/test.go
+++ b/libgo/go/cmd/go/internal/test/test.go
@@ -572,8 +572,9 @@
 	}
 
 	// Pass timeout to tests if it exists.
+	// Prepend rather than appending so that it appears before positional arguments.
 	if testActualTimeout > 0 {
-		testArgs = append(testArgs, "-test.timeout="+testActualTimeout.String())
+		testArgs = append([]string{"-test.timeout=" + testActualTimeout.String()}, testArgs...)
 	}
 
 	// show passing test output (after buffering) with -v flag.
@@ -828,7 +829,7 @@
 	if p.ImportPath == "command-line-arguments" {
 		elem = p.Name
 	} else {
-		elem = load.DefaultExecName(p.ImportPath)
+		elem = p.DefaultExecName()
 	}
 	testBinary := elem + ".test"
 
diff --git a/libgo/go/cmd/go/internal/test/testflag.go b/libgo/go/cmd/go/internal/test/testflag.go
index 138e1f9..e214b15 100644
--- a/libgo/go/cmd/go/internal/test/testflag.go
+++ b/libgo/go/cmd/go/internal/test/testflag.go
@@ -65,7 +65,7 @@
 func init() {
 	cmdflag.AddKnownFlags("test", testFlagDefn)
 	var cmd base.Command
-	work.AddBuildFlags(&cmd)
+	work.AddBuildFlags(&cmd, work.DefaultBuildFlags)
 	cmd.Flag.VisitAll(func(f *flag.Flag) {
 		if f.Name == "v" {
 			// test overrides the build -v flag
@@ -88,7 +88,8 @@
 //	go test fmt -custom-flag-for-fmt-test
 //	go test -x math
 func testFlags(usage func(), args []string) (packageNames, passToTest []string) {
-	args = str.StringList(cmdflag.FindGOFLAGS(testFlagDefn), args)
+	goflags := cmdflag.FindGOFLAGS(testFlagDefn)
+	args = str.StringList(goflags, args)
 	inPkg := false
 	var explicitArgs []string
 	for i := 0; i < len(args); i++ {
@@ -127,6 +128,9 @@
 			passToTest = append(passToTest, args[i])
 			continue
 		}
+		if i < len(goflags) {
+			f.Present = false // Not actually present on the command line.
+		}
 		if f.Value != nil {
 			if err := f.Value.Set(value); err != nil {
 				base.Fatalf("invalid flag argument for -%s: %v", f.Name, err)
diff --git a/libgo/go/cmd/go/internal/tlog/ct_test.go b/libgo/go/cmd/go/internal/tlog/ct_test.go
deleted file mode 100644
index c2d9aeb..0000000
--- a/libgo/go/cmd/go/internal/tlog/ct_test.go
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tlog
-
-import (
-	"encoding/json"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"os"
-	"testing"
-)
-
-func TestCertificateTransparency(t *testing.T) {
-	// Test that we can verify actual Certificate Transparency proofs.
-	// (The other tests check that we can verify our own proofs;
-	// this is a test that the two are compatible.)
-
-	if testing.Short() {
-		t.Skip("skipping in -short mode")
-	}
-
-	var root ctTree
-	httpGET(t, "http://ct.googleapis.com/logs/argon2020/ct/v1/get-sth", &root)
-
-	var leaf ctEntries
-	httpGET(t, "http://ct.googleapis.com/logs/argon2020/ct/v1/get-entries?start=10000&end=10000", &leaf)
-	hash := RecordHash(leaf.Entries[0].Data)
-
-	var rp ctRecordProof
-	httpGET(t, "http://ct.googleapis.com/logs/argon2020/ct/v1/get-proof-by-hash?tree_size="+fmt.Sprint(root.Size)+"&hash="+url.QueryEscape(hash.String()), &rp)
-
-	err := CheckRecord(rp.Proof, root.Size, root.Hash, 10000, hash)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	var tp ctTreeProof
-	httpGET(t, "http://ct.googleapis.com/logs/argon2020/ct/v1/get-sth-consistency?first=3654490&second="+fmt.Sprint(root.Size), &tp)
-
-	oh, _ := ParseHash("AuIZ5V6sDUj1vn3Y1K85oOaQ7y+FJJKtyRTl1edIKBQ=")
-	err = CheckTree(tp.Proof, root.Size, root.Hash, 3654490, oh)
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-type ctTree struct {
-	Size int64 `json:"tree_size"`
-	Hash Hash  `json:"sha256_root_hash"`
-}
-
-type ctEntries struct {
-	Entries []*ctEntry
-}
-
-type ctEntry struct {
-	Data []byte `json:"leaf_input"`
-}
-
-type ctRecordProof struct {
-	Index int64       `json:"leaf_index"`
-	Proof RecordProof `json:"audit_path"`
-}
-
-type ctTreeProof struct {
-	Proof TreeProof `json:"consistency"`
-}
-
-func httpGET(t *testing.T, url string, targ interface{}) {
-	if testing.Verbose() {
-		println()
-		println(url)
-	}
-	resp, err := http.Get(url)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer resp.Body.Close()
-	data, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if testing.Verbose() {
-		os.Stdout.Write(data)
-	}
-	err = json.Unmarshal(data, targ)
-	if err != nil {
-		println(url)
-		os.Stdout.Write(data)
-		t.Fatal(err)
-	}
-}
diff --git a/libgo/go/cmd/go/internal/tlog/note_test.go b/libgo/go/cmd/go/internal/tlog/note_test.go
deleted file mode 100644
index a32d6d2..0000000
--- a/libgo/go/cmd/go/internal/tlog/note_test.go
+++ /dev/null
@@ -1,117 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tlog
-
-import (
-	"strings"
-	"testing"
-)
-
-func TestFormatTree(t *testing.T) {
-	n := int64(123456789012)
-	h := RecordHash([]byte("hello world"))
-	golden := "go.sum database tree\n123456789012\nTszzRgjTG6xce+z2AG31kAXYKBgQVtCSCE40HmuwBb0=\n"
-	b := FormatTree(Tree{n, h})
-	if string(b) != golden {
-		t.Errorf("FormatTree(...) = %q, want %q", b, golden)
-	}
-}
-
-func TestParseTree(t *testing.T) {
-	in := "go.sum database tree\n123456789012\nTszzRgjTG6xce+z2AG31kAXYKBgQVtCSCE40HmuwBb0=\n"
-	goldH := RecordHash([]byte("hello world"))
-	goldN := int64(123456789012)
-	tree, err := ParseTree([]byte(in))
-	if tree.N != goldN || tree.Hash != goldH || err != nil {
-		t.Fatalf("ParseTree(...) = Tree{%d, %v}, %v, want Tree{%d, %v}, nil", tree.N, tree.Hash, err, goldN, goldH)
-	}
-
-	// Check invalid trees.
-	var badTrees = []string{
-		"not-" + in,
-		"go.sum database tree\n0xabcdef\nTszzRgjTG6xce+z2AG31kAXYKBgQVtCSCE40HmuwBb0=\n",
-		"go.sum database tree\n123456789012\nTszzRgjTG6xce+z2AG31kAXYKBgQVtCSCE40HmuwBTOOBIG=\n",
-	}
-	for _, bad := range badTrees {
-		_, err := ParseTree([]byte(bad))
-		if err == nil {
-			t.Fatalf("ParseTree(%q) succeeded, want failure", in)
-		}
-	}
-
-	// Check junk on end is ignored.
-	var goodTrees = []string{
-		in + "JOE",
-		in + "JOE\n",
-		in + strings.Repeat("JOE\n", 1000),
-	}
-	for _, good := range goodTrees {
-		_, err := ParseTree([]byte(good))
-		if tree.N != goldN || tree.Hash != goldH || err != nil {
-			t.Fatalf("ParseTree(...+%q) = Tree{%d, %v}, %v, want Tree{%d, %v}, nil", good[len(in):], tree.N, tree.Hash, err, goldN, goldH)
-		}
-	}
-}
-
-func TestFormatRecord(t *testing.T) {
-	id := int64(123456789012)
-	text := "hello, world\n"
-	golden := "123456789012\nhello, world\n\n"
-	msg, err := FormatRecord(id, []byte(text))
-	if err != nil {
-		t.Fatalf("FormatRecord: %v", err)
-	}
-	if string(msg) != golden {
-		t.Fatalf("FormatRecord(...) = %q, want %q", msg, golden)
-	}
-
-	var badTexts = []string{
-		"",
-		"hello\nworld",
-		"hello\n\nworld\n",
-		"hello\x01world\n",
-	}
-	for _, bad := range badTexts {
-		msg, err := FormatRecord(id, []byte(bad))
-		if err == nil {
-			t.Errorf("FormatRecord(id, %q) = %q, want error", bad, msg)
-		}
-	}
-}
-
-func TestParseRecord(t *testing.T) {
-	in := "123456789012\nhello, world\n\njunk on end\x01\xff"
-	goldID := int64(123456789012)
-	goldText := "hello, world\n"
-	goldRest := "junk on end\x01\xff"
-	id, text, rest, err := ParseRecord([]byte(in))
-	if id != goldID || string(text) != goldText || string(rest) != goldRest || err != nil {
-		t.Fatalf("ParseRecord(%q) = %d, %q, %q, %v, want %d, %q, %q, nil", in, id, text, rest, err, goldID, goldText, goldRest)
-	}
-
-	in = "123456789012\nhello, world\n\n"
-	id, text, rest, err = ParseRecord([]byte(in))
-	if id != goldID || string(text) != goldText || len(rest) != 0 || err != nil {
-		t.Fatalf("ParseRecord(%q) = %d, %q, %q, %v, want %d, %q, %q, nil", in, id, text, rest, err, goldID, goldText, "")
-	}
-	if rest == nil {
-		t.Fatalf("ParseRecord(%q): rest = []byte(nil), want []byte{}", in)
-	}
-
-	// Check invalid records.
-	var badRecords = []string{
-		"not-" + in,
-		"123\nhello\x01world\n\n",
-		"123\nhello\xffworld\n\n",
-		"123\nhello world\n",
-		"0x123\nhello world\n\n",
-	}
-	for _, bad := range badRecords {
-		id, text, rest, err := ParseRecord([]byte(bad))
-		if err == nil {
-			t.Fatalf("ParseRecord(%q) = %d, %q, %q, nil, want error", in, id, text, rest)
-		}
-	}
-}
diff --git a/libgo/go/cmd/go/internal/tlog/tlog_test.go b/libgo/go/cmd/go/internal/tlog/tlog_test.go
deleted file mode 100644
index 584e728..0000000
--- a/libgo/go/cmd/go/internal/tlog/tlog_test.go
+++ /dev/null
@@ -1,269 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tlog
-
-import (
-	"bytes"
-	"fmt"
-	"testing"
-)
-
-type testHashStorage []Hash
-
-func (t testHashStorage) ReadHash(level int, n int64) (Hash, error) {
-	return t[StoredHashIndex(level, n)], nil
-}
-
-func (t testHashStorage) ReadHashes(index []int64) ([]Hash, error) {
-	// It's not required by HashReader that indexes be in increasing order,
-	// but check that the functions we are testing only ever ask for
-	// indexes in increasing order.
-	for i := 1; i < len(index); i++ {
-		if index[i-1] >= index[i] {
-			panic("indexes out of order")
-		}
-	}
-
-	out := make([]Hash, len(index))
-	for i, x := range index {
-		out[i] = t[x]
-	}
-	return out, nil
-}
-
-type testTilesStorage struct {
-	unsaved int
-	m       map[Tile][]byte
-}
-
-func (t testTilesStorage) Height() int {
-	return 2
-}
-
-func (t *testTilesStorage) SaveTiles(tiles []Tile, data [][]byte) {
-	t.unsaved -= len(tiles)
-}
-
-func (t *testTilesStorage) ReadTiles(tiles []Tile) ([][]byte, error) {
-	out := make([][]byte, len(tiles))
-	for i, tile := range tiles {
-		out[i] = t.m[tile]
-	}
-	t.unsaved += len(tiles)
-	return out, nil
-}
-
-func TestTree(t *testing.T) {
-	var trees []Hash
-	var leafhashes []Hash
-	var storage testHashStorage
-	tiles := make(map[Tile][]byte)
-	const testH = 2
-	for i := int64(0); i < 100; i++ {
-		data := []byte(fmt.Sprintf("leaf %d", i))
-		hashes, err := StoredHashes(i, data, storage)
-		if err != nil {
-			t.Fatal(err)
-		}
-		leafhashes = append(leafhashes, RecordHash(data))
-		oldStorage := len(storage)
-		storage = append(storage, hashes...)
-		if count := StoredHashCount(i + 1); count != int64(len(storage)) {
-			t.Errorf("StoredHashCount(%d) = %d, have %d StoredHashes", i+1, count, len(storage))
-		}
-		th, err := TreeHash(i+1, storage)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		for _, tile := range NewTiles(testH, i, i+1) {
-			data, err := ReadTileData(tile, storage)
-			if err != nil {
-				t.Fatal(err)
-			}
-			old := Tile{H: tile.H, L: tile.L, N: tile.N, W: tile.W - 1}
-			oldData := tiles[old]
-			if len(oldData) != len(data)-HashSize || !bytes.Equal(oldData, data[:len(oldData)]) {
-				t.Fatalf("tile %v not extending earlier tile %v", tile.Path(), old.Path())
-			}
-			tiles[tile] = data
-		}
-		for _, tile := range NewTiles(testH, 0, i+1) {
-			data, err := ReadTileData(tile, storage)
-			if err != nil {
-				t.Fatal(err)
-			}
-			if !bytes.Equal(tiles[tile], data) {
-				t.Fatalf("mismatch at %+v", tile)
-			}
-		}
-		for _, tile := range NewTiles(testH, i/2, i+1) {
-			data, err := ReadTileData(tile, storage)
-			if err != nil {
-				t.Fatal(err)
-			}
-			if !bytes.Equal(tiles[tile], data) {
-				t.Fatalf("mismatch at %+v", tile)
-			}
-		}
-
-		// Check that all the new hashes are readable from their tiles.
-		for j := oldStorage; j < len(storage); j++ {
-			tile := TileForIndex(testH, int64(j))
-			data, ok := tiles[tile]
-			if !ok {
-				t.Log(NewTiles(testH, 0, i+1))
-				t.Fatalf("TileForIndex(%d, %d) = %v, not yet stored (i=%d, stored %d)", testH, j, tile.Path(), i, len(storage))
-				continue
-			}
-			h, err := HashFromTile(tile, data, int64(j))
-			if err != nil {
-				t.Fatal(err)
-			}
-			if h != storage[j] {
-				t.Errorf("HashFromTile(%v, %d) = %v, want %v", tile.Path(), int64(j), h, storage[j])
-			}
-		}
-
-		trees = append(trees, th)
-
-		// Check that leaf proofs work, for all trees and leaves so far.
-		for j := int64(0); j <= i; j++ {
-			p, err := ProveRecord(i+1, j, storage)
-			if err != nil {
-				t.Fatalf("ProveRecord(%d, %d): %v", i+1, j, err)
-			}
-			if err := CheckRecord(p, i+1, th, j, leafhashes[j]); err != nil {
-				t.Fatalf("CheckRecord(%d, %d): %v", i+1, j, err)
-			}
-			for k := range p {
-				p[k][0] ^= 1
-				if err := CheckRecord(p, i+1, th, j, leafhashes[j]); err == nil {
-					t.Fatalf("CheckRecord(%d, %d) succeeded with corrupt proof hash #%d!", i+1, j, k)
-				}
-				p[k][0] ^= 1
-			}
-		}
-
-		// Check that leaf proofs work using TileReader.
-		// To prove a leaf that way, all you have to do is read and verify its hash.
-		storage := &testTilesStorage{m: tiles}
-		thr := TileHashReader(Tree{i + 1, th}, storage)
-		for j := int64(0); j <= i; j++ {
-			h, err := thr.ReadHashes([]int64{StoredHashIndex(0, j)})
-			if err != nil {
-				t.Fatalf("TileHashReader(%d).ReadHashes(%d): %v", i+1, j, err)
-			}
-			if h[0] != leafhashes[j] {
-				t.Fatalf("TileHashReader(%d).ReadHashes(%d) returned wrong hash", i+1, j)
-			}
-
-			// Even though reading the hash suffices,
-			// check we can generate the proof too.
-			p, err := ProveRecord(i+1, j, thr)
-			if err != nil {
-				t.Fatalf("ProveRecord(%d, %d, TileHashReader(%d)): %v", i+1, j, i+1, err)
-			}
-			if err := CheckRecord(p, i+1, th, j, leafhashes[j]); err != nil {
-				t.Fatalf("CheckRecord(%d, %d, TileHashReader(%d)): %v", i+1, j, i+1, err)
-			}
-		}
-		if storage.unsaved != 0 {
-			t.Fatalf("TileHashReader(%d) did not save %d tiles", i+1, storage.unsaved)
-		}
-
-		// Check that ReadHashes will give an error if the index is not in the tree.
-		if _, err := thr.ReadHashes([]int64{(i + 1) * 2}); err == nil {
-			t.Fatalf("TileHashReader(%d).ReadHashes(%d) for index not in tree <nil>, want err", i, i+1)
-		}
-		if storage.unsaved != 0 {
-			t.Fatalf("TileHashReader(%d) did not save %d tiles", i+1, storage.unsaved)
-		}
-
-		// Check that tree proofs work, for all trees so far, using TileReader.
-		// To prove a tree that way, all you have to do is compute and verify its hash.
-		for j := int64(0); j <= i; j++ {
-			h, err := TreeHash(j+1, thr)
-			if err != nil {
-				t.Fatalf("TreeHash(%d, TileHashReader(%d)): %v", j, i+1, err)
-			}
-			if h != trees[j] {
-				t.Fatalf("TreeHash(%d, TileHashReader(%d)) = %x, want %x (%v)", j, i+1, h[:], trees[j][:], trees[j])
-			}
-
-			// Even though computing the subtree hash suffices,
-			// check that we can generate the proof too.
-			p, err := ProveTree(i+1, j+1, thr)
-			if err != nil {
-				t.Fatalf("ProveTree(%d, %d): %v", i+1, j+1, err)
-			}
-			if err := CheckTree(p, i+1, th, j+1, trees[j]); err != nil {
-				t.Fatalf("CheckTree(%d, %d): %v [%v]", i+1, j+1, err, p)
-			}
-			for k := range p {
-				p[k][0] ^= 1
-				if err := CheckTree(p, i+1, th, j+1, trees[j]); err == nil {
-					t.Fatalf("CheckTree(%d, %d) succeeded with corrupt proof hash #%d!", i+1, j+1, k)
-				}
-				p[k][0] ^= 1
-			}
-		}
-		if storage.unsaved != 0 {
-			t.Fatalf("TileHashReader(%d) did not save %d tiles", i+1, storage.unsaved)
-		}
-	}
-}
-
-func TestSplitStoredHashIndex(t *testing.T) {
-	for l := 0; l < 10; l++ {
-		for n := int64(0); n < 100; n++ {
-			x := StoredHashIndex(l, n)
-			l1, n1 := SplitStoredHashIndex(x)
-			if l1 != l || n1 != n {
-				t.Fatalf("StoredHashIndex(%d, %d) = %d, but SplitStoredHashIndex(%d) = %d, %d", l, n, x, x, l1, n1)
-			}
-		}
-	}
-}
-
-// TODO(rsc): Test invalid paths too, like "tile/3/5/123/456/078".
-var tilePaths = []struct {
-	path string
-	tile Tile
-}{
-	{"tile/4/0/001", Tile{4, 0, 1, 16}},
-	{"tile/4/0/001.p/5", Tile{4, 0, 1, 5}},
-	{"tile/3/5/x123/x456/078", Tile{3, 5, 123456078, 8}},
-	{"tile/3/5/x123/x456/078.p/2", Tile{3, 5, 123456078, 2}},
-	{"tile/1/0/x003/x057/500", Tile{1, 0, 3057500, 2}},
-	{"tile/3/5/123/456/078", Tile{}},
-	{"tile/3/-1/123/456/078", Tile{}},
-	{"tile/1/data/x003/x057/500", Tile{1, -1, 3057500, 2}},
-}
-
-func TestTilePath(t *testing.T) {
-	for _, tt := range tilePaths {
-		if tt.tile.H > 0 {
-			p := tt.tile.Path()
-			if p != tt.path {
-				t.Errorf("%+v.Path() = %q, want %q", tt.tile, p, tt.path)
-			}
-		}
-		tile, err := ParseTilePath(tt.path)
-		if err != nil {
-			if tt.tile.H == 0 {
-				// Expected error.
-				continue
-			}
-			t.Errorf("ParseTilePath(%q): %v", tt.path, err)
-		} else if tile != tt.tile {
-			if tt.tile.H == 0 {
-				t.Errorf("ParseTilePath(%q): expected error, got %+v", tt.path, tt.tile)
-				continue
-			}
-			t.Errorf("ParseTilePath(%q) = %+v, want %+v", tt.path, tile, tt.tile)
-		}
-	}
-}
diff --git a/libgo/go/cmd/go/internal/vet/vet.go b/libgo/go/cmd/go/internal/vet/vet.go
index 327b761..660a739 100644
--- a/libgo/go/cmd/go/internal/vet/vet.go
+++ b/libgo/go/cmd/go/internal/vet/vet.go
@@ -51,6 +51,7 @@
 
 	work.BuildInit()
 	work.VetFlags = vetFlags
+	work.VetExplicit = true
 	if vetTool != "" {
 		var err error
 		work.VetTool, err = filepath.Abs(vetTool)
diff --git a/libgo/go/cmd/go/internal/vet/vetflag.go b/libgo/go/cmd/go/internal/vet/vetflag.go
index cbe7f8c..e3de48b 100644
--- a/libgo/go/cmd/go/internal/vet/vetflag.go
+++ b/libgo/go/cmd/go/internal/vet/vetflag.go
@@ -114,7 +114,7 @@
 
 	// Add build flags to vetFlagDefn.
 	var cmd base.Command
-	work.AddBuildFlags(&cmd)
+	work.AddBuildFlags(&cmd, work.DefaultBuildFlags)
 	// This flag declaration is a placeholder:
 	// -vettool is actually parsed by the init function above.
 	cmd.Flag.StringVar(new(string), "vettool", "", "path to vet tool binary")
@@ -126,7 +126,8 @@
 	})
 
 	// Process args.
-	args = str.StringList(cmdflag.FindGOFLAGS(vetFlagDefn), args)
+	goflags := cmdflag.FindGOFLAGS(vetFlagDefn)
+	args = str.StringList(goflags, args)
 	for i := 0; i < len(args); i++ {
 		if !strings.HasPrefix(args[i], "-") {
 			return args[:i], args[i:]
@@ -139,6 +140,9 @@
 			base.SetExitStatus(2)
 			base.Exit()
 		}
+		if i < len(goflags) {
+			f.Present = false // Not actually present on the command line.
+		}
 		if f.Value != nil {
 			if err := f.Value.Set(value); err != nil {
 				base.Fatalf("invalid flag argument for -%s: %v", f.Name, err)
diff --git a/libgo/go/cmd/go/internal/web/api.go b/libgo/go/cmd/go/internal/web/api.go
index cd0e19d..ad99eb2 100644
--- a/libgo/go/cmd/go/internal/web/api.go
+++ b/libgo/go/cmd/go/internal/web/api.go
@@ -10,12 +10,15 @@
 package web
 
 import (
+	"bytes"
 	"fmt"
 	"io"
 	"io/ioutil"
 	"net/url"
 	"os"
 	"strings"
+	"unicode"
+	"unicode/utf8"
 )
 
 // SecurityMode specifies whether a function should make network
@@ -34,9 +37,32 @@
 	URL        string // redacted
 	Status     string
 	StatusCode int
+	Err        error  // underlying error, if known
+	Detail     string // limited to maxErrorDetailLines and maxErrorDetailBytes
 }
 
+const (
+	maxErrorDetailLines = 8
+	maxErrorDetailBytes = maxErrorDetailLines * 81
+)
+
 func (e *HTTPError) Error() string {
+	if e.Detail != "" {
+		detailSep := " "
+		if strings.ContainsRune(e.Detail, '\n') {
+			detailSep = "\n\t"
+		}
+		return fmt.Sprintf("reading %s: %v\n\tserver response:%s%s", e.URL, e.Status, detailSep, e.Detail)
+	}
+
+	if err := e.Err; err != nil {
+		if pErr, ok := e.Err.(*os.PathError); ok && strings.HasSuffix(e.URL, pErr.Path) {
+			// Remove the redundant copy of the path.
+			err = pErr.Err
+		}
+		return fmt.Sprintf("reading %s: %v", e.URL, err)
+	}
+
 	return fmt.Sprintf("reading %s: %v", e.URL, e.Status)
 }
 
@@ -44,6 +70,10 @@
 	return target == os.ErrNotExist && (e.StatusCode == 404 || e.StatusCode == 410)
 }
 
+func (e *HTTPError) Unwrap() error {
+	return e.Err
+}
+
 // GetBytes returns the body of the requested resource, or an error if the
 // response status was not http.StatusOK.
 //
@@ -69,16 +99,69 @@
 	Status     string
 	StatusCode int
 	Header     map[string][]string
-	Body       io.ReadCloser
+	Body       io.ReadCloser // Either the original body or &errorDetail.
+
+	fileErr     error
+	errorDetail errorDetailBuffer
 }
 
 // Err returns an *HTTPError corresponding to the response r.
-// It returns nil if the response r has StatusCode 200 or 0 (unset).
+// If the response r has StatusCode 200 or 0 (unset), Err returns nil.
+// Otherwise, Err may read from r.Body in order to extract relevant error detail.
 func (r *Response) Err() error {
 	if r.StatusCode == 200 || r.StatusCode == 0 {
 		return nil
 	}
-	return &HTTPError{URL: r.URL, Status: r.Status, StatusCode: r.StatusCode}
+
+	return &HTTPError{
+		URL:        r.URL,
+		Status:     r.Status,
+		StatusCode: r.StatusCode,
+		Err:        r.fileErr,
+		Detail:     r.formatErrorDetail(),
+	}
+}
+
+// formatErrorDetail converts r.errorDetail (a prefix of the output of r.Body)
+// into a short, tab-indented summary.
+func (r *Response) formatErrorDetail() string {
+	if r.Body != &r.errorDetail {
+		return "" // Error detail collection not enabled.
+	}
+
+	// Ensure that r.errorDetail has been populated.
+	_, _ = io.Copy(ioutil.Discard, r.Body)
+
+	s := r.errorDetail.buf.String()
+	if !utf8.ValidString(s) {
+		return "" // Don't try to recover non-UTF-8 error messages.
+	}
+	for _, r := range s {
+		if !unicode.IsGraphic(r) && !unicode.IsSpace(r) {
+			return "" // Don't let the server do any funny business with the user's terminal.
+		}
+	}
+
+	var detail strings.Builder
+	for i, line := range strings.Split(s, "\n") {
+		if strings.TrimSpace(line) == "" {
+			break // Stop at the first blank line.
+		}
+		if i > 0 {
+			detail.WriteString("\n\t")
+		}
+		if i >= maxErrorDetailLines {
+			detail.WriteString("[Truncated: too many lines.]")
+			break
+		}
+		if detail.Len()+len(line) > maxErrorDetailBytes {
+			detail.WriteString("[Truncated: too long.]")
+			break
+		}
+		detail.WriteString(line)
+	}
+
+	return detail.String()
 }
 
 // Get returns the body of the HTTP or HTTPS resource specified at the given URL.
@@ -131,3 +214,39 @@
 	j.RawPath = strings.TrimSuffix(u.RawPath, "/") + "/" + strings.TrimPrefix(path, "/")
 	return &j
 }
+
+// An errorDetailBuffer is an io.ReadCloser that copies up to
+// maxErrorDetailLines into a buffer for later inspection.
+type errorDetailBuffer struct {
+	r        io.ReadCloser
+	buf      strings.Builder
+	bufLines int
+}
+
+func (b *errorDetailBuffer) Close() error {
+	return b.r.Close()
+}
+
+func (b *errorDetailBuffer) Read(p []byte) (n int, err error) {
+	n, err = b.r.Read(p)
+
+	// Copy the first maxErrorDetailLines+1 lines into b.buf,
+	// discarding any further lines.
+	//
+	// Note that the read may begin or end in the middle of a UTF-8 character,
+	// so don't try to do anything fancy with characters that encode to larger
+	// than one byte.
+	if b.bufLines <= maxErrorDetailLines {
+		for _, line := range bytes.SplitAfterN(p[:n], []byte("\n"), maxErrorDetailLines-b.bufLines) {
+			b.buf.Write(line)
+			if len(line) > 0 && line[len(line)-1] == '\n' {
+				b.bufLines++
+				if b.bufLines > maxErrorDetailLines {
+					break
+				}
+			}
+		}
+	}
+
+	return n, err
+}
diff --git a/libgo/go/cmd/go/internal/web/file_test.go b/libgo/go/cmd/go/internal/web/file_test.go
index e31ad71..6339469 100644
--- a/libgo/go/cmd/go/internal/web/file_test.go
+++ b/libgo/go/cmd/go/internal/web/file_test.go
@@ -19,6 +19,8 @@
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer os.Remove(f.Name())
+
 	if _, err := f.WriteString(content); err != nil {
 		t.Error(err)
 	}
diff --git a/libgo/go/cmd/go/internal/web/http.go b/libgo/go/cmd/go/internal/web/http.go
index b790fe9..5e4319b 100644
--- a/libgo/go/cmd/go/internal/web/http.go
+++ b/libgo/go/cmd/go/internal/web/http.go
@@ -14,7 +14,7 @@
 import (
 	"crypto/tls"
 	"fmt"
-	"io/ioutil"
+	"mime"
 	"net/http"
 	urlpkg "net/url"
 	"os"
@@ -64,7 +64,7 @@
 			Status:     "404 testing",
 			StatusCode: 404,
 			Header:     make(map[string][]string),
-			Body:       ioutil.NopCloser(strings.NewReader("")),
+			Body:       http.NoBody,
 		}
 		if cfg.BuildX {
 			fmt.Fprintf(os.Stderr, "# get %s: %v (%.3fs)\n", Redacted(url), res.Status, time.Since(start).Seconds())
@@ -111,7 +111,7 @@
 		fetched, res, err = fetch(secure)
 		if err != nil {
 			if cfg.BuildX {
-				fmt.Fprintf(os.Stderr, "# get %s: %v\n", Redacted(url), err)
+				fmt.Fprintf(os.Stderr, "# get %s: %v\n", Redacted(secure), err)
 			}
 			if security != Insecure || url.Scheme == "https" {
 				// HTTPS failed, and we can't fall back to plain HTTP.
@@ -146,7 +146,7 @@
 		insecure.Scheme = "http"
 		if insecure.User != nil && security != Insecure {
 			if cfg.BuildX {
-				fmt.Fprintf(os.Stderr, "# get %s: insecure credentials\n", Redacted(url))
+				fmt.Fprintf(os.Stderr, "# get %s: insecure credentials\n", Redacted(insecure))
 			}
 			return nil, fmt.Errorf("refusing to pass credentials to insecure URL: %s", Redacted(insecure))
 		}
@@ -154,7 +154,7 @@
 		fetched, res, err = fetch(insecure)
 		if err != nil {
 			if cfg.BuildX {
-				fmt.Fprintf(os.Stderr, "# get %s: %v\n", Redacted(url), err)
+				fmt.Fprintf(os.Stderr, "# get %s: %v\n", Redacted(insecure), err)
 			}
 			// HTTP failed, and we already tried HTTPS if applicable.
 			// Report the error from the HTTP attempt.
@@ -165,8 +165,9 @@
 	// Note: accepting a non-200 OK here, so people can serve a
 	// meta import in their http 404 page.
 	if cfg.BuildX {
-		fmt.Fprintf(os.Stderr, "# get %s: %v (%.3fs)\n", Redacted(url), res.Status, time.Since(start).Seconds())
+		fmt.Fprintf(os.Stderr, "# get %s: %v (%.3fs)\n", Redacted(fetched), res.Status, time.Since(start).Seconds())
 	}
+
 	r := &Response{
 		URL:        Redacted(fetched),
 		Status:     res.Status,
@@ -174,6 +175,20 @@
 		Header:     map[string][]string(res.Header),
 		Body:       res.Body,
 	}
+
+	if res.StatusCode != http.StatusOK {
+		contentType := res.Header.Get("Content-Type")
+		if mediaType, params, _ := mime.ParseMediaType(contentType); mediaType == "text/plain" {
+			switch charset := strings.ToLower(params["charset"]); charset {
+			case "us-ascii", "utf-8", "":
+				// Body claims to be plain text in UTF-8 or a subset thereof.
+				// Try to extract a useful error message from it.
+				r.errorDetail.r = res.Body
+				r.Body = &r.errorDetail
+			}
+		}
+	}
+
 	return r, nil
 }
 
@@ -190,6 +205,7 @@
 			Status:     http.StatusText(http.StatusNotFound),
 			StatusCode: http.StatusNotFound,
 			Body:       http.NoBody,
+			fileErr:    err,
 		}, nil
 	}
 
@@ -199,6 +215,7 @@
 			Status:     http.StatusText(http.StatusForbidden),
 			StatusCode: http.StatusForbidden,
 			Body:       http.NoBody,
+			fileErr:    err,
 		}, nil
 	}
 
diff --git a/libgo/go/cmd/go/internal/web/url_other.go b/libgo/go/cmd/go/internal/web/url_other.go
index bd243e5..2641ee6 100644
--- a/libgo/go/cmd/go/internal/web/url_other.go
+++ b/libgo/go/cmd/go/internal/web/url_other.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//+build !windows
+// +build !windows
 
 package web
 
diff --git a/libgo/go/cmd/go/internal/web/url_other_test.go b/libgo/go/cmd/go/internal/web/url_other_test.go
index b4a74d9..aa56633 100644
--- a/libgo/go/cmd/go/internal/web/url_other_test.go
+++ b/libgo/go/cmd/go/internal/web/url_other_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//+build !windows
+// +build !windows
 
 package web
 
diff --git a/libgo/go/cmd/go/internal/work/action.go b/libgo/go/cmd/go/internal/work/action.go
index eabac6b..db422fd 100644
--- a/libgo/go/cmd/go/internal/work/action.go
+++ b/libgo/go/cmd/go/internal/work/action.go
@@ -291,11 +291,12 @@
 		}
 	}
 
-	if _, ok := cfg.OSArchSupportsCgo[cfg.Goos+"/"+cfg.Goarch]; !ok && cfg.BuildContext.Compiler == "gc" {
-		fmt.Fprintf(os.Stderr, "cmd/go: unsupported GOOS/GOARCH pair %s/%s\n", cfg.Goos, cfg.Goarch)
+	if err := CheckGOOSARCHPair(cfg.Goos, cfg.Goarch); err != nil {
+		fmt.Fprintf(os.Stderr, "cmd/go: %v\n", err)
 		base.SetExitStatus(2)
 		base.Exit()
 	}
+
 	for _, tag := range cfg.BuildContext.BuildTags {
 		if strings.Contains(tag, ",") {
 			fmt.Fprintf(os.Stderr, "cmd/go: -tags space-separated list contains comma\n")
@@ -305,6 +306,13 @@
 	}
 }
 
+func CheckGOOSARCHPair(goos, goarch string) error {
+	if _, ok := cfg.OSArchSupportsCgo[goos+"/"+goarch]; !ok && cfg.BuildContext.Compiler == "gc" {
+		return fmt.Errorf("unsupported GOOS/GOARCH pair %s/%s", goos, goarch)
+	}
+	return nil
+}
+
 // NewObjdir returns the name of a fresh object directory under b.WorkDir.
 // It is up to the caller to call b.Mkdir on the result at an appropriate time.
 // The result ends in a slash, so that file names in that directory
@@ -707,7 +715,7 @@
 }
 
 // buildmodeShared takes the "go build" action a1 into the building of a shared library of a1.Deps.
-// That is, the input a1 represents "go build pkgs" and the result represents "go build -buidmode=shared pkgs".
+// That is, the input a1 represents "go build pkgs" and the result represents "go build -buildmode=shared pkgs".
 func (b *Builder) buildmodeShared(mode, depMode BuildMode, args []string, pkgs []*load.Package, a1 *Action) *Action {
 	name, err := libname(args, pkgs)
 	if err != nil {
diff --git a/libgo/go/cmd/go/internal/work/build.go b/libgo/go/cmd/go/internal/work/build.go
index 9305b2d..e3b25c9 100644
--- a/libgo/go/cmd/go/internal/work/build.go
+++ b/libgo/go/cmd/go/internal/work/build.go
@@ -62,11 +62,13 @@
 		The default is the number of CPUs available.
 	-race
 		enable data race detection.
-		Supported only on linux/amd64, freebsd/amd64, darwin/amd64 and windows/amd64.
+		Supported only on linux/amd64, freebsd/amd64, darwin/amd64, windows/amd64,
+		linux/ppc64le and linux/arm64 (only for 48-bit VMA).
 	-msan
 		enable interoperation with memory sanitizer.
 		Supported only on linux/amd64, linux/arm64
 		and only with Clang/LLVM as the host C compiler.
+		On linux/arm64, pie build mode will be used.
 	-v
 		print the names of packages as they are compiled.
 	-work
@@ -95,11 +97,21 @@
 	-ldflags '[pattern=]arg list'
 		arguments to pass on each go tool link invocation.
 	-linkshared
-		link against shared libraries previously created with
-		-buildmode=shared.
+		build code that will be linked against shared libraries previously
+		created with -buildmode=shared.
 	-mod mode
-		module download mode to use: readonly or vendor.
+		module download mode to use: readonly, vendor, or mod.
 		See 'go help modules' for more.
+	-modcacherw
+		leave newly-created directories in the module cache read-write
+		instead of making them read-only.
+	-modfile file
+		in module aware mode, read (and possibly write) an alternate go.mod
+		file instead of the one in the module root directory. A file named
+		"go.mod" must still be present in order to determine the module root
+		directory, but it is not accessed. When -modfile is specified, an
+		alternate go.sum file is also used: its path is derived from the
+		-modfile flag by trimming the ".mod" extension and appending ".sum".
 	-pkgdir dir
 		install and load all packages from dir instead of the usual locations.
 		For example, when building with a non-standard configuration,
@@ -165,8 +177,8 @@
 
 	CmdInstall.Flag.BoolVar(&cfg.BuildI, "i", false, "")
 
-	AddBuildFlags(CmdBuild)
-	AddBuildFlags(CmdInstall)
+	AddBuildFlags(CmdBuild, DefaultBuildFlags)
+	AddBuildFlags(CmdInstall, DefaultBuildFlags)
 }
 
 // Note that flags consulted by other parts of the code
@@ -214,9 +226,17 @@
 	}
 }
 
-// addBuildFlags adds the flags common to the build, clean, get,
+type BuildFlagMask int
+
+const (
+	DefaultBuildFlags BuildFlagMask = 0
+	OmitModFlag       BuildFlagMask = 1 << iota
+	OmitModCommonFlags
+)
+
+// AddBuildFlags adds the flags common to the build, clean, get,
 // install, list, run, and test commands.
-func AddBuildFlags(cmd *base.Command) {
+func AddBuildFlags(cmd *base.Command, mask BuildFlagMask) {
 	cmd.Flag.BoolVar(&cfg.BuildA, "a", false, "")
 	cmd.Flag.BoolVar(&cfg.BuildN, "n", false, "")
 	cmd.Flag.IntVar(&cfg.BuildP, "p", cfg.BuildP, "")
@@ -228,7 +248,12 @@
 	cmd.Flag.StringVar(&cfg.BuildBuildmode, "buildmode", "default", "")
 	cmd.Flag.Var(&load.BuildGcflags, "gcflags", "")
 	cmd.Flag.Var(&load.BuildGccgoflags, "gccgoflags", "")
-	cmd.Flag.StringVar(&cfg.BuildMod, "mod", "", "")
+	if mask&OmitModFlag == 0 {
+		cmd.Flag.StringVar(&cfg.BuildMod, "mod", "", "")
+	}
+	if mask&OmitModCommonFlags == 0 {
+		AddModCommonFlags(cmd)
+	}
 	cmd.Flag.StringVar(&cfg.BuildContext.InstallSuffix, "installsuffix", "", "")
 	cmd.Flag.Var(&load.BuildLdflags, "ldflags", "")
 	cmd.Flag.BoolVar(&cfg.BuildLinkshared, "linkshared", false, "")
@@ -244,6 +269,13 @@
 	cmd.Flag.StringVar(&cfg.DebugActiongraph, "debug-actiongraph", "", "")
 }
 
+// AddModCommonFlags adds the module-related flags common to build commands
+// and 'go mod' subcommands.
+func AddModCommonFlags(cmd *base.Command) {
+	cmd.Flag.BoolVar(&cfg.ModCacheRW, "modcacherw", false, "")
+	cmd.Flag.StringVar(&cfg.ModFile, "modfile", "", "")
+}
+
 // tagsFlag is the implementation of the -tags flag.
 type tagsFlag []string
 
@@ -318,7 +350,7 @@
 	explicitO := len(cfg.BuildO) > 0
 
 	if len(pkgs) == 1 && pkgs[0].Name == "main" && cfg.BuildO == "" {
-		cfg.BuildO = load.DefaultExecName(pkgs[0].ImportPath)
+		cfg.BuildO = pkgs[0].DefaultExecName()
 		cfg.BuildO += cfg.ExeSuffix
 	}
 
@@ -362,7 +394,8 @@
 				if p.Name != "main" {
 					continue
 				}
-				p.Target = filepath.Join(cfg.BuildO, load.DefaultExecName(p.ImportPath))
+
+				p.Target = filepath.Join(cfg.BuildO, p.DefaultExecName())
 				p.Target += cfg.ExeSuffix
 				p.Stale = true
 				p.StaleReason = "build -o flag in use"
@@ -584,7 +617,7 @@
 	if len(patterns) == 0 && len(pkgs) == 1 && pkgs[0].Name == "main" {
 		// Compute file 'go build' would have created.
 		// If it exists and is an executable file, remove it.
-		targ := load.DefaultExecName(pkgs[0].ImportPath)
+		targ := pkgs[0].DefaultExecName()
 		targ += cfg.ExeSuffix
 		if filepath.Join(pkgs[0].Dir, targ) != pkgs[0].Target { // maybe $GOBIN is the current directory
 			fi, err := os.Stat(targ)
diff --git a/libgo/go/cmd/go/internal/work/build_test.go b/libgo/go/cmd/go/internal/work/build_test.go
index 55e1eea..b60f4e2 100644
--- a/libgo/go/cmd/go/internal/work/build_test.go
+++ b/libgo/go/cmd/go/internal/work/build_test.go
@@ -221,8 +221,6 @@
 // See https://golang.org/issue/18878.
 func TestRespectSetgidDir(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl":
-		t.Skip("can't set SetGID bit with chmod on nacl")
 	case "darwin":
 		if runtime.GOARCH == "arm" || runtime.GOARCH == "arm64" {
 			t.Skip("can't set SetGID bit with chmod on iOS")
diff --git a/libgo/go/cmd/go/internal/work/buildid.go b/libgo/go/cmd/go/internal/work/buildid.go
index 27bde8c..7558a30 100644
--- a/libgo/go/cmd/go/internal/work/buildid.go
+++ b/libgo/go/cmd/go/internal/work/buildid.go
@@ -15,7 +15,6 @@
 	"cmd/go/internal/base"
 	"cmd/go/internal/cache"
 	"cmd/go/internal/cfg"
-	"cmd/go/internal/load"
 	"cmd/go/internal/str"
 	"cmd/internal/buildid"
 )
@@ -421,7 +420,7 @@
 // during a's work. The caller should defer b.flushOutput(a), to make sure
 // that flushOutput is eventually called regardless of whether the action
 // succeeds. The flushOutput call must happen after updateBuildID.
-func (b *Builder) useCache(a *Action, p *load.Package, actionHash cache.ActionID, target string) bool {
+func (b *Builder) useCache(a *Action, actionHash cache.ActionID, target string) bool {
 	// The second half of the build ID here is a placeholder for the content hash.
 	// It's important that the overall buildID be unlikely verging on impossible
 	// to appear in the output by chance, but that should be taken care of by
diff --git a/libgo/go/cmd/go/internal/work/exec.go b/libgo/go/cmd/go/internal/work/exec.go
index c666026..ba81543 100644
--- a/libgo/go/cmd/go/internal/work/exec.go
+++ b/libgo/go/cmd/go/internal/work/exec.go
@@ -54,8 +54,9 @@
 
 // do runs the action graph rooted at root.
 func (b *Builder) Do(root *Action) {
-	if c := cache.Default(); c != nil && !b.IsCmdList {
+	if !b.IsCmdList {
 		// If we're doing real work, take time at the end to trim the cache.
+		c := cache.Default()
 		defer c.Trim()
 	}
 
@@ -200,13 +201,17 @@
 	// same compiler settings and can reuse each other's results.
 	// If not, the reason is already recorded in buildGcflags.
 	fmt.Fprintf(h, "compile\n")
+	// Only include the package directory if it may affect the output.
+	// We trim workspace paths for all packages when -trimpath is set.
 	// The compiler hides the exact value of $GOROOT
-	// when building things in GOROOT,
-	// but it does not hide the exact value of $GOPATH.
-	// Include the full dir in that case.
+	// when building things in GOROOT.
 	// Assume b.WorkDir is being trimmed properly.
-	if !p.Goroot && !strings.HasPrefix(p.Dir, b.WorkDir) {
+	// When -trimpath is used with a package built from the module cache,
+	// use the module path and version instead of the directory.
+	if !p.Goroot && !cfg.BuildTrimpath && !strings.HasPrefix(p.Dir, b.WorkDir) {
 		fmt.Fprintf(h, "dir %s\n", p.Dir)
+	} else if cfg.BuildTrimpath && p.Module != nil {
+		fmt.Fprintf(h, "module %s@%s\n", p.Module.Path, p.Module.Version)
 	}
 	fmt.Fprintf(h, "goos %s goarch %s\n", cfg.Goos, cfg.Goarch)
 	fmt.Fprintf(h, "import %q\n", p.ImportPath)
@@ -394,7 +399,7 @@
 		bit(needCompiledGoFiles, b.NeedCompiledGoFiles)
 
 	if !p.BinaryOnly {
-		if b.useCache(a, p, b.buildActionID(a), p.Target) {
+		if b.useCache(a, b.buildActionID(a), p.Target) {
 			// We found the main output in the cache.
 			// If we don't need any other outputs, we can stop.
 			// Otherwise, we need to write files to a.Objdir (needVet, needCgoHdr).
@@ -406,15 +411,19 @@
 			if b.NeedExport {
 				p.Export = a.built
 			}
-			if need&needCompiledGoFiles != 0 && b.loadCachedSrcFiles(a) {
-				need &^= needCompiledGoFiles
+			if need&needCompiledGoFiles != 0 {
+				if err := b.loadCachedSrcFiles(a); err == nil {
+					need &^= needCompiledGoFiles
+				}
 			}
 		}
 
 		// Source files might be cached, even if the full action is not
 		// (e.g., go list -compiled -find).
-		if !cachedBuild && need&needCompiledGoFiles != 0 && b.loadCachedSrcFiles(a) {
-			need &^= needCompiledGoFiles
+		if !cachedBuild && need&needCompiledGoFiles != 0 {
+			if err := b.loadCachedSrcFiles(a); err == nil {
+				need &^= needCompiledGoFiles
+			}
 		}
 
 		if need == 0 {
@@ -428,7 +437,7 @@
 			err = fmt.Errorf("go build %s: %v", a.Package.ImportPath, err)
 		}
 		if err != nil && b.IsCmdList && b.NeedError && p.Error == nil {
-			p.Error = &load.PackageError{Err: err.Error()}
+			p.Error = &load.PackageError{Err: err}
 		}
 	}()
 	if cfg.BuildN {
@@ -459,16 +468,20 @@
 	objdir := a.Objdir
 
 	// Load cached cgo header, but only if we're skipping the main build (cachedBuild==true).
-	if cachedBuild && need&needCgoHdr != 0 && b.loadCachedCgoHdr(a) {
-		need &^= needCgoHdr
+	if cachedBuild && need&needCgoHdr != 0 {
+		if err := b.loadCachedCgoHdr(a); err == nil {
+			need &^= needCgoHdr
+		}
 	}
 
 	// Load cached vet config, but only if that's all we have left
 	// (need == needVet, not testing just the one bit).
 	// If we are going to do a full build anyway,
 	// we're going to regenerate the files below anyway.
-	if need == needVet && b.loadCachedVet(a) {
-		need &^= needVet
+	if need == needVet {
+		if err := b.loadCachedVet(a); err == nil {
+			need &^= needVet
+		}
 	}
 	if need == 0 {
 		return nil
@@ -615,8 +628,8 @@
 		need &^= needVet
 	}
 	if need&needCompiledGoFiles != 0 {
-		if !b.loadCachedSrcFiles(a) {
-			return fmt.Errorf("failed to cache compiled Go files")
+		if err := b.loadCachedSrcFiles(a); err != nil {
+			return fmt.Errorf("loading compiled Go files from cache: %w", err)
 		}
 		need &^= needCompiledGoFiles
 	}
@@ -656,7 +669,7 @@
 	}
 
 	if p.Internal.BuildInfo != "" && cfg.ModulesEnabled {
-		if err := b.writeFile(objdir+"_gomod_.go", load.ModInfoProg(p.Internal.BuildInfo)); err != nil {
+		if err := b.writeFile(objdir+"_gomod_.go", load.ModInfoProg(p.Internal.BuildInfo, cfg.BuildToolchainName == "gccgo")); err != nil {
 			return err
 		}
 		gofiles = append(gofiles, objdir+"_gomod_.go")
@@ -790,7 +803,7 @@
 func (b *Builder) findCachedObjdirFile(a *Action, c *cache.Cache, name string) (string, error) {
 	file, _, err := c.GetFile(cache.Subkey(a.actionID, name))
 	if err != nil {
-		return "", err
+		return "", fmt.Errorf("loading cached file %s: %w", name, err)
 	}
 	return file, nil
 }
@@ -805,26 +818,16 @@
 
 func (b *Builder) cacheCgoHdr(a *Action) {
 	c := cache.Default()
-	if c == nil {
-		return
-	}
 	b.cacheObjdirFile(a, c, "_cgo_install.h")
 }
 
-func (b *Builder) loadCachedCgoHdr(a *Action) bool {
+func (b *Builder) loadCachedCgoHdr(a *Action) error {
 	c := cache.Default()
-	if c == nil {
-		return false
-	}
-	err := b.loadCachedObjdirFile(a, c, "_cgo_install.h")
-	return err == nil
+	return b.loadCachedObjdirFile(a, c, "_cgo_install.h")
 }
 
 func (b *Builder) cacheSrcFiles(a *Action, srcfiles []string) {
 	c := cache.Default()
-	if c == nil {
-		return
-	}
 	var buf bytes.Buffer
 	for _, file := range srcfiles {
 		if !strings.HasPrefix(file, a.Objdir) {
@@ -844,14 +847,11 @@
 	c.PutBytes(cache.Subkey(a.actionID, "srcfiles"), buf.Bytes())
 }
 
-func (b *Builder) loadCachedVet(a *Action) bool {
+func (b *Builder) loadCachedVet(a *Action) error {
 	c := cache.Default()
-	if c == nil {
-		return false
-	}
 	list, _, err := c.GetBytes(cache.Subkey(a.actionID, "srcfiles"))
 	if err != nil {
-		return false
+		return fmt.Errorf("reading srcfiles list: %w", err)
 	}
 	var srcfiles []string
 	for _, name := range strings.Split(string(list), "\n") {
@@ -863,22 +863,19 @@
 			continue
 		}
 		if err := b.loadCachedObjdirFile(a, c, name); err != nil {
-			return false
+			return err
 		}
 		srcfiles = append(srcfiles, a.Objdir+name)
 	}
 	buildVetConfig(a, srcfiles)
-	return true
+	return nil
 }
 
-func (b *Builder) loadCachedSrcFiles(a *Action) bool {
+func (b *Builder) loadCachedSrcFiles(a *Action) error {
 	c := cache.Default()
-	if c == nil {
-		return false
-	}
 	list, _, err := c.GetBytes(cache.Subkey(a.actionID, "srcfiles"))
 	if err != nil {
-		return false
+		return fmt.Errorf("reading srcfiles list: %w", err)
 	}
 	var files []string
 	for _, name := range strings.Split(string(list), "\n") {
@@ -891,12 +888,12 @@
 		}
 		file, err := b.findCachedObjdirFile(a, c, name)
 		if err != nil {
-			return false
+			return fmt.Errorf("finding %s: %w", name, err)
 		}
 		files = append(files, file)
 	}
 	a.Package.CompiledGoFiles = files
-	return true
+	return nil
 }
 
 // vetConfig is the configuration passed to vet describing a single package.
@@ -1032,7 +1029,7 @@
 	// dependency tree turn on *more* analysis, as here.
 	// (The unsafeptr check does not write any facts for use by
 	// later vet runs.)
-	if a.Package.Goroot && !VetExplicit {
+	if a.Package.Goroot && !VetExplicit && VetTool == "" {
 		// Note that $GOROOT/src/buildall.bash
 		// does the same for the misc-compile trybots
 		// and should be updated if these flags are
@@ -1060,12 +1057,11 @@
 	}
 	key := cache.ActionID(h.Sum())
 
-	if vcfg.VetxOnly {
-		if c := cache.Default(); c != nil && !cfg.BuildA {
-			if file, _, err := c.GetFile(key); err == nil {
-				a.built = file
-				return nil
-			}
+	if vcfg.VetxOnly && !cfg.BuildA {
+		c := cache.Default()
+		if file, _, err := c.GetFile(key); err == nil {
+			a.built = file
+			return nil
 		}
 	}
 
@@ -1093,9 +1089,7 @@
 	// If vet wrote export data, save it for input to future vets.
 	if f, err := os.Open(vcfg.VetxOutput); err == nil {
 		a.built = vcfg.VetxOutput
-		if c := cache.Default(); c != nil {
-			c.Put(key, f)
-		}
+		cache.Default().Put(key, f)
 		f.Close()
 	}
 
@@ -1183,7 +1177,7 @@
 // link is the action for linking a single command.
 // Note that any new influence on this logic must be reported in b.linkActionID above as well.
 func (b *Builder) link(a *Action) (err error) {
-	if b.useCache(a, a.Package, b.linkActionID(a), a.Package.Target) || b.IsCmdList {
+	if b.useCache(a, b.linkActionID(a), a.Package.Target) || b.IsCmdList {
 		return nil
 	}
 	defer b.flushOutput(a)
@@ -1416,7 +1410,7 @@
 }
 
 func (b *Builder) linkShared(a *Action) (err error) {
-	if b.useCache(a, nil, b.linkSharedActionID(a), a.Target) || b.IsCmdList {
+	if b.useCache(a, b.linkSharedActionID(a), a.Target) || b.IsCmdList {
 		return nil
 	}
 	defer b.flushOutput(a)
@@ -1622,12 +1616,12 @@
 
 	// Be careful about removing/overwriting dst.
 	// Do not remove/overwrite if dst exists and is a directory
-	// or a non-object file.
+	// or a non-empty non-object file.
 	if fi, err := os.Stat(dst); err == nil {
 		if fi.IsDir() {
 			return fmt.Errorf("build output %q already exists and is a directory", dst)
 		}
-		if !force && fi.Mode().IsRegular() && !isObject(dst) {
+		if !force && fi.Mode().IsRegular() && fi.Size() != 0 && !isObject(dst) {
 			return fmt.Errorf("build output %q already exists and is not an object file", dst)
 		}
 	}
@@ -1652,7 +1646,7 @@
 		df, err = os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, perm)
 	}
 	if err != nil {
-		return err
+		return fmt.Errorf("copying %s: %w", src, err) // err should already refer to dst
 	}
 
 	_, err = io.Copy(df, sf)
@@ -1782,6 +1776,11 @@
 	}
 	if b.WorkDir != "" {
 		cmd = strings.ReplaceAll(cmd, b.WorkDir, "$WORK")
+		escaped := strconv.Quote(b.WorkDir)
+		escaped = escaped[1 : len(escaped)-1] // strip quote characters
+		if escaped != b.WorkDir {
+			cmd = strings.ReplaceAll(cmd, escaped, "$WORK")
+		}
 	}
 	return cmd
 }
@@ -2408,7 +2407,7 @@
 	switch cfg.Goarch {
 	case "386":
 		return []string{"-m32"}
-	case "amd64", "amd64p32":
+	case "amd64":
 		return []string{"-m64"}
 	case "arm":
 		return []string{"-marm"} // not thumb
diff --git a/libgo/go/cmd/go/internal/work/gc.go b/libgo/go/cmd/go/internal/work/gc.go
index 8632294..5702469 100644
--- a/libgo/go/cmd/go/internal/work/gc.go
+++ b/libgo/go/cmd/go/internal/work/gc.go
@@ -92,8 +92,7 @@
 	if a.buildID != "" {
 		gcargs = append(gcargs, "-buildid", a.buildID)
 	}
-	platform := cfg.Goos + "/" + cfg.Goarch
-	if p.Internal.OmitDebug || platform == "nacl/amd64p32" || cfg.Goos == "plan9" || cfg.Goarch == "wasm" {
+	if p.Internal.OmitDebug || cfg.Goos == "plan9" || cfg.Goarch == "wasm" {
 		gcargs = append(gcargs, "-dwarf=false")
 	}
 	if strings.HasPrefix(runtimeVersion, "go1") && !strings.Contains(os.Args[0], "go_bootstrap") {
diff --git a/libgo/go/cmd/go/internal/work/gccgo.go b/libgo/go/cmd/go/internal/work/gccgo.go
index 87b3f5f..f6fa17d 100644
--- a/libgo/go/cmd/go/internal/work/gccgo.go
+++ b/libgo/go/cmd/go/internal/work/gccgo.go
@@ -91,6 +91,10 @@
 			args = append(args, "-I", root)
 		}
 	}
+	if cfg.BuildTrimpath && b.gccSupportsFlag(args[:1], "-ffile-prefix-map=a=b") {
+		args = append(args, "-ffile-prefix-map="+base.Cwd+"=.")
+		args = append(args, "-ffile-prefix-map="+b.WorkDir+"=/tmp/go-build")
+	}
 	args = append(args, a.Package.Internal.Gccgoflags...)
 	for _, f := range gofiles {
 		args = append(args, mkAbs(p.Dir, f))
@@ -354,7 +358,7 @@
 		}
 
 		if haveShlib[filepath.Base(a.Target)] {
-			// This is a shared library we want to link againt.
+			// This is a shared library we want to link against.
 			if !addedShlib[a.Target] {
 				shlibs = append(shlibs, a.Target)
 				addedShlib[a.Target] = true
@@ -560,7 +564,10 @@
 		defs = append(defs, "-fsplit-stack")
 	}
 	defs = tools.maybePIC(defs)
-	if b.gccSupportsFlag(compiler, "-fdebug-prefix-map=a=b") {
+	if b.gccSupportsFlag(compiler, "-ffile-prefix-map=a=b") {
+		defs = append(defs, "-ffile-prefix-map="+base.Cwd+"=.")
+		defs = append(defs, "-ffile-prefix-map="+b.WorkDir+"=/tmp/go-build")
+	} else if b.gccSupportsFlag(compiler, "-fdebug-prefix-map=a=b") {
 		defs = append(defs, "-fdebug-prefix-map="+b.WorkDir+"=/tmp/go-build")
 	}
 	if b.gccSupportsFlag(compiler, "-gno-record-gcc-switches") {
diff --git a/libgo/go/cmd/go/internal/work/init.go b/libgo/go/cmd/go/internal/work/init.go
index 35d3a50..9091f98 100644
--- a/libgo/go/cmd/go/internal/work/init.go
+++ b/libgo/go/cmd/go/internal/work/init.go
@@ -60,6 +60,11 @@
 	mode := "race"
 	if cfg.BuildMSan {
 		mode = "msan"
+		// MSAN does not support non-PIE binaries on ARM64.
+		// See issue #33712 for details.
+		if cfg.Goos == "linux" && cfg.Goarch == "arm64" && cfg.BuildBuildmode == "default" {
+			cfg.BuildBuildmode = "pie"
+		}
 	}
 	modeFlag := "-" + mode
 
@@ -81,7 +86,11 @@
 func buildModeInit() {
 	gccgo := cfg.BuildToolchainName == "gccgo"
 	var codegenArg string
-	platform := cfg.Goos + "/" + cfg.Goarch
+
+	// Configure the build mode first, then verify that it is supported.
+	// That way, if the flag is completely bogus we will prefer to error out with
+	// "-buildmode=%s not supported" instead of naming the specific platform.
+
 	switch cfg.BuildBuildmode {
 	case "archive":
 		pkgsFilter = pkgsNotMain
@@ -90,20 +99,18 @@
 		if gccgo {
 			codegenArg = "-fPIC"
 		} else {
-			switch platform {
-			case "darwin/arm", "darwin/arm64":
-				codegenArg = "-shared"
-			default:
-				switch cfg.Goos {
-				case "dragonfly", "freebsd", "illumos", "linux", "netbsd", "openbsd", "solaris":
-					if platform == "linux/ppc64" {
-						base.Fatalf("-buildmode=c-archive not supported on %s\n", platform)
-					}
-					// Use -shared so that the result is
-					// suitable for inclusion in a PIE or
-					// shared library.
+			switch cfg.Goos {
+			case "darwin":
+				switch cfg.Goarch {
+				case "arm", "arm64":
 					codegenArg = "-shared"
 				}
+
+			case "dragonfly", "freebsd", "illumos", "linux", "netbsd", "openbsd", "solaris":
+				// Use -shared so that the result is
+				// suitable for inclusion in a PIE or
+				// shared library.
+				codegenArg = "-shared"
 			}
 		}
 		cfg.ExeSuffix = ".a"
@@ -113,27 +120,25 @@
 		if gccgo {
 			codegenArg = "-fPIC"
 		} else {
-			switch platform {
-			case "linux/amd64", "linux/arm", "linux/arm64", "linux/386", "linux/ppc64le", "linux/s390x",
-				"android/amd64", "android/arm", "android/arm64", "android/386",
-				"freebsd/amd64":
+			switch cfg.Goos {
+			case "linux", "android", "freebsd":
 				codegenArg = "-shared"
-			case "darwin/amd64", "darwin/386":
-			case "windows/amd64", "windows/386":
+			case "windows":
 				// Do not add usual .exe suffix to the .dll file.
 				cfg.ExeSuffix = ""
-			default:
-				base.Fatalf("-buildmode=c-shared not supported on %s\n", platform)
 			}
 		}
 		ldBuildmode = "c-shared"
 	case "default":
-		switch platform {
-		case "android/arm", "android/arm64", "android/amd64", "android/386":
+		switch cfg.Goos {
+		case "android":
 			codegenArg = "-shared"
 			ldBuildmode = "pie"
-		case "darwin/arm", "darwin/arm64":
-			codegenArg = "-shared"
+		case "darwin":
+			switch cfg.Goarch {
+			case "arm", "arm64":
+				codegenArg = "-shared"
+			}
 			fallthrough
 		default:
 			ldBuildmode = "exe"
@@ -156,18 +161,8 @@
 		}
 		if gccgo {
 			codegenArg = "-fPIE"
-		} else {
-			switch platform {
-			case "linux/386", "linux/amd64", "linux/arm", "linux/arm64", "linux/ppc64le", "linux/s390x",
-				"android/amd64", "android/arm", "android/arm64", "android/386",
-				"freebsd/amd64":
-				codegenArg = "-shared"
-			case "darwin/amd64":
-				codegenArg = "-shared"
-			case "aix/ppc64":
-			default:
-				base.Fatalf("-buildmode=pie not supported on %s\n", platform)
-			}
+		} else if cfg.Goos != "aix" {
+			codegenArg = "-shared"
 		}
 		ldBuildmode = "pie"
 	case "shared":
@@ -175,11 +170,6 @@
 		if gccgo {
 			codegenArg = "-fPIC"
 		} else {
-			switch platform {
-			case "linux/386", "linux/amd64", "linux/arm", "linux/arm64", "linux/ppc64le", "linux/s390x":
-			default:
-				base.Fatalf("-buildmode=shared not supported on %s\n", platform)
-			}
 			codegenArg = "-dynlink"
 		}
 		if cfg.BuildO != "" {
@@ -191,15 +181,6 @@
 		if gccgo {
 			codegenArg = "-fPIC"
 		} else {
-			switch platform {
-			case "linux/amd64", "linux/arm", "linux/arm64", "linux/386", "linux/s390x", "linux/ppc64le",
-				"android/amd64", "android/arm", "android/arm64", "android/386":
-			case "darwin/amd64":
-				// Skip DWARF generation due to #21647
-				forcedLdflags = append(forcedLdflags, "-w")
-			default:
-				base.Fatalf("-buildmode=plugin not supported on %s\n", platform)
-			}
 			codegenArg = "-dynlink"
 		}
 		cfg.ExeSuffix = ".so"
@@ -207,17 +188,21 @@
 	default:
 		base.Fatalf("buildmode=%s not supported", cfg.BuildBuildmode)
 	}
+
+	if !sys.BuildModeSupported(cfg.BuildToolchainName, cfg.BuildBuildmode, cfg.Goos, cfg.Goarch) {
+		base.Fatalf("-buildmode=%s not supported on %s/%s\n", cfg.BuildBuildmode, cfg.Goos, cfg.Goarch)
+	}
+
 	if cfg.BuildLinkshared {
+		if !sys.BuildModeSupported(cfg.BuildToolchainName, "shared", cfg.Goos, cfg.Goarch) {
+			base.Fatalf("-linkshared not supported on %s/%s\n", cfg.Goos, cfg.Goarch)
+		}
 		if gccgo {
 			codegenArg = "-fPIC"
 		} else {
-			switch platform {
-			case "linux/386", "linux/amd64", "linux/arm", "linux/arm64", "linux/ppc64le", "linux/s390x":
-				forcedAsmflags = append(forcedAsmflags, "-D=GOBUILDMODE_shared=1")
-			default:
-				base.Fatalf("-linkshared not supported on %s\n", platform)
-			}
+			forcedAsmflags = append(forcedAsmflags, "-D=GOBUILDMODE_shared=1")
 			codegenArg = "-dynlink"
+			forcedGcflags = append(forcedGcflags, "-linkshared")
 			// TODO(mwhudson): remove -w when that gets fixed in linker.
 			forcedLdflags = append(forcedLdflags, "-linkshared", "-w")
 		}
@@ -241,12 +226,20 @@
 	switch cfg.BuildMod {
 	case "":
 		// ok
-	case "readonly", "vendor":
-		if load.ModLookup == nil && !inGOFLAGS("-mod") {
+	case "readonly", "vendor", "mod":
+		if !cfg.ModulesEnabled && !inGOFLAGS("-mod") {
 			base.Fatalf("build flag -mod=%s only valid when using modules", cfg.BuildMod)
 		}
 	default:
-		base.Fatalf("-mod=%s not supported (can be '', 'readonly', or 'vendor')", cfg.BuildMod)
+		base.Fatalf("-mod=%s not supported (can be '', 'mod', 'readonly', or 'vendor')", cfg.BuildMod)
+	}
+	if !cfg.ModulesEnabled {
+		if cfg.ModCacheRW && !inGOFLAGS("-modcacherw") {
+			base.Fatalf("build flag -modcacherw only valid when using modules")
+		}
+		if cfg.ModFile != "" && !inGOFLAGS("-mod") {
+			base.Fatalf("build flag -modfile only valid when using modules")
+		}
 	}
 }
 
diff --git a/libgo/go/cmd/go/internal/work/security.go b/libgo/go/cmd/go/internal/work/security.go
index 0d8da21..0ce1664 100644
--- a/libgo/go/cmd/go/internal/work/security.go
+++ b/libgo/go/cmd/go/internal/work/security.go
@@ -43,6 +43,7 @@
 
 var validCompilerFlags = []*lazyregexp.Regexp{
 	re(`-D([A-Za-z_].*)`),
+	re(`-U([A-Za-z_]*)`),
 	re(`-F([^@\-].*)`),
 	re(`-I([^@\-].*)`),
 	re(`-O`),
@@ -51,6 +52,7 @@
 	re(`-W([^@,]+)`), // -Wall but not -Wa,-foo.
 	re(`-Wa,-mbig-obj`),
 	re(`-Wp,-D([A-Za-z_].*)`),
+	re(`-Wp,-U([A-Za-z_]*)`),
 	re(`-ansi`),
 	re(`-f(no-)?asynchronous-unwind-tables`),
 	re(`-f(no-)?blocks`),
@@ -127,6 +129,7 @@
 var validCompilerFlagsWithNextArg = []string{
 	"-arch",
 	"-D",
+	"-U",
 	"-I",
 	"-framework",
 	"-isysroot",
@@ -280,6 +283,15 @@
 					continue Args
 				}
 
+				// Permit -I= /path, -I $SYSROOT.
+				if i+1 < len(list) && arg == "-I" {
+					if (strings.HasPrefix(list[i+1], "=") || strings.HasPrefix(list[i+1], "$SYSROOT")) &&
+						load.SafeArg(list[i+1][1:]) {
+						i++
+						continue Args
+					}
+				}
+
 				if i+1 < len(list) {
 					return fmt.Errorf("invalid flag in %s: %s %s (see https://golang.org/s/invalidflag)", source, arg, list[i+1])
 				}
diff --git a/libgo/go/cmd/go/internal/work/security_test.go b/libgo/go/cmd/go/internal/work/security_test.go
index fd8caea..6b85c40 100644
--- a/libgo/go/cmd/go/internal/work/security_test.go
+++ b/libgo/go/cmd/go/internal/work/security_test.go
@@ -12,6 +12,7 @@
 var goodCompilerFlags = [][]string{
 	{"-DFOO"},
 	{"-Dfoo=bar"},
+	{"-Ufoo"},
 	{"-F/Qt"},
 	{"-I/"},
 	{"-I/etc/passwd"},
@@ -21,6 +22,8 @@
 	{"-Osmall"},
 	{"-W"},
 	{"-Wall"},
+	{"-Wp,-Dfoo=bar"},
+	{"-Wp,-Ufoo"},
 	{"-fobjc-arc"},
 	{"-fno-objc-arc"},
 	{"-fomit-frame-pointer"},
@@ -56,6 +59,9 @@
 	{"-I", "."},
 	{"-I", "/etc/passwd"},
 	{"-I", "世界"},
+	{"-I", "=/usr/include/libxml2"},
+	{"-I", "dir"},
+	{"-I", "$SYSROOT/dir"},
 	{"-framework", "Chocolate"},
 	{"-x", "c"},
 	{"-v"},
@@ -64,6 +70,7 @@
 var badCompilerFlags = [][]string{
 	{"-D@X"},
 	{"-D-X"},
+	{"-Ufoo=bar"},
 	{"-F@dir"},
 	{"-F-dir"},
 	{"-I@dir"},
@@ -83,6 +90,7 @@
 	{"-D", "-foo"},
 	{"-I", "@foo"},
 	{"-I", "-foo"},
+	{"-I", "=@obj"},
 	{"-framework", "-Caffeine"},
 	{"-framework", "@Home"},
 	{"-x", "--c"},
@@ -143,6 +151,7 @@
 	{"-L", "framework"},
 	{"-framework", "Chocolate"},
 	{"-v"},
+	{"-Wl,-sectcreate,__TEXT,__info_plist,${SRCDIR}/Info.plist"},
 	{"-Wl,-framework", "-Wl,Chocolate"},
 	{"-Wl,-framework,Chocolate"},
 	{"-Wl,-unresolved-symbols=ignore-all"},
diff --git a/libgo/go/cmd/go/main.go b/libgo/go/cmd/go/main.go
index 16bdb62..bb442b5 100644
--- a/libgo/go/cmd/go/main.go
+++ b/libgo/go/cmd/go/main.go
@@ -91,7 +91,7 @@
 	}
 
 	if args[0] == "get" || args[0] == "help" {
-		if modload.Init(); !modload.Enabled() {
+		if !modload.WillBeEnabled() {
 			// Replace module-aware get with GOPATH get if appropriate.
 			*modget.CmdGet = *get.CmdGet
 		}
diff --git a/libgo/go/cmd/go/proxy_test.go b/libgo/go/cmd/go/proxy_test.go
index 6919d32..8214488 100644
--- a/libgo/go/cmd/go/proxy_test.go
+++ b/libgo/go/cmd/go/proxy_test.go
@@ -23,14 +23,15 @@
 	"sync"
 	"testing"
 
-	"cmd/go/internal/dirhash"
 	"cmd/go/internal/modfetch"
 	"cmd/go/internal/modfetch/codehost"
-	"cmd/go/internal/module"
 	"cmd/go/internal/par"
-	"cmd/go/internal/semver"
-	"cmd/go/internal/sumweb"
 	"cmd/go/internal/txtar"
+
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/semver"
+	"golang.org/x/mod/sumdb"
+	"golang.org/x/mod/sumdb/dirhash"
 )
 
 var (
@@ -65,7 +66,7 @@
 
 		// Prepopulate main sumdb.
 		for _, mod := range modList {
-			sumdbHandler.Server.Lookup(nil, mod.Path+"@"+mod.Version)
+			sumdbOps.Lookup(nil, mod)
 		}
 	})
 }
@@ -88,7 +89,7 @@
 			continue
 		}
 		encPath := strings.ReplaceAll(name[:i], "_", "/")
-		path, err := module.DecodePath(encPath)
+		path, err := module.UnescapePath(encPath)
 		if err != nil {
 			if encPath != "example.com/invalidpath/v1" {
 				fmt.Fprintf(os.Stderr, "go proxy_test: %v\n", err)
@@ -96,7 +97,7 @@
 			continue
 		}
 		encVers := name[i+1:]
-		vers, err := module.DecodeVersion(encVers)
+		vers, err := module.UnescapeVersion(encVers)
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "go proxy_test: %v\n", err)
 			continue
@@ -113,8 +114,13 @@
 	testSumDBSignerKey   = "PRIVATE+KEY+localhost.localdev/sumdb+00000c67+AXu6+oaVaOYuQOFrf1V59JK1owcFlJcHwwXHDfDGxSPk"
 )
 
-var sumdbHandler = &sumweb.Handler{Server: sumweb.NewTestServer(testSumDBSignerKey, proxyGoSum)}
-var sumdbWrongHandler = &sumweb.Handler{Server: sumweb.NewTestServer(testSumDBSignerKey, proxyGoSumWrong)}
+var (
+	sumdbOps    = sumdb.NewTestServer(testSumDBSignerKey, proxyGoSum)
+	sumdbServer = sumdb.NewServer(sumdbOps)
+
+	sumdbWrongOps    = sumdb.NewTestServer(testSumDBSignerKey, proxyGoSumWrong)
+	sumdbWrongServer = sumdb.NewServer(sumdbWrongOps)
+)
 
 // proxyHandler serves the Go module proxy protocol.
 // See the proxy section of https://research.swtch.com/vgo-module.
@@ -155,7 +161,7 @@
 	// (Client thinks it is talking directly to a sumdb.)
 	if strings.HasPrefix(path, "sumdb-direct/") {
 		r.URL.Path = path[len("sumdb-direct"):]
-		sumdbHandler.ServeHTTP(w, r)
+		sumdbServer.ServeHTTP(w, r)
 		return
 	}
 
@@ -164,7 +170,7 @@
 	// (Client thinks it is talking directly to a sumdb.)
 	if strings.HasPrefix(path, "sumdb-wrong/") {
 		r.URL.Path = path[len("sumdb-wrong"):]
-		sumdbWrongHandler.ServeHTTP(w, r)
+		sumdbWrongServer.ServeHTTP(w, r)
 		return
 	}
 
@@ -178,7 +184,7 @@
 	// Request for $GOPROXY/sumdb/<name>/... goes to sumdb.
 	if sumdbPrefix := "sumdb/" + testSumDBName + "/"; strings.HasPrefix(path, sumdbPrefix) {
 		r.URL.Path = path[len(sumdbPrefix)-1:]
-		sumdbHandler.ServeHTTP(w, r)
+		sumdbServer.ServeHTTP(w, r)
 		return
 	}
 
@@ -187,7 +193,7 @@
 	// latest version, including pseudo-versions.
 	if i := strings.LastIndex(path, "/@latest"); i >= 0 {
 		enc := path[:i]
-		modPath, err := module.DecodePath(enc)
+		modPath, err := module.UnescapePath(enc)
 		if err != nil {
 			if !quiet {
 				fmt.Fprintf(os.Stderr, "go proxy_test: %v\n", err)
@@ -225,7 +231,7 @@
 			return
 		}
 
-		encVers, err := module.EncodeVersion(latest)
+		encVers, err := module.EscapeVersion(latest)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
@@ -240,7 +246,7 @@
 		return
 	}
 	enc, file := path[:i], path[i+len("/@v/"):]
-	path, err := module.DecodePath(enc)
+	path, err := module.UnescapePath(enc)
 	if err != nil {
 		if !quiet {
 			fmt.Fprintf(os.Stderr, "go proxy_test: %v\n", err)
@@ -276,7 +282,7 @@
 		return
 	}
 	encVers, ext := file[:i], file[i+1:]
-	vers, err := module.DecodeVersion(encVers)
+	vers, err := module.UnescapeVersion(encVers)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "go proxy_test: %v\n", err)
 		http.NotFound(w, r)
@@ -397,11 +403,11 @@
 var cmdGoDir, _ = os.Getwd()
 
 func readArchive(path, vers string) (*txtar.Archive, error) {
-	enc, err := module.EncodePath(path)
+	enc, err := module.EscapePath(path)
 	if err != nil {
 		return nil, err
 	}
-	encVers, err := module.EncodeVersion(vers)
+	encVers, err := module.EscapeVersion(vers)
 	if err != nil {
 		return nil, err
 	}
diff --git a/libgo/go/cmd/go/script_test.go b/libgo/go/cmd/go/script_test.go
index 4dcb4b4..ec498bb 100644
--- a/libgo/go/cmd/go/script_test.go
+++ b/libgo/go/cmd/go/script_test.go
@@ -30,6 +30,7 @@
 	"cmd/go/internal/robustio"
 	"cmd/go/internal/txtar"
 	"cmd/go/internal/work"
+	"cmd/internal/sys"
 )
 
 // TestScript runs the tests in testdata/script/*.txt.
@@ -117,6 +118,7 @@
 		"GOSUMDB=" + testSumDBVerifierKey,
 		"GONOPROXY=",
 		"GONOSUMDB=",
+		"PWD=" + ts.cd,
 		tempEnvName() + "=" + filepath.Join(ts.workdir, "tmp"),
 		"devnull=" + os.DevNull,
 		"goversion=" + goVersion(ts),
@@ -291,6 +293,22 @@
 					}).(bool)
 					break
 				}
+				if strings.HasPrefix(cond.tag, "GODEBUG:") {
+					value := strings.TrimPrefix(cond.tag, "GODEBUG:")
+					parts := strings.Split(os.Getenv("GODEBUG"), ",")
+					for _, p := range parts {
+						if strings.TrimSpace(p) == value {
+							ok = true
+							break
+						}
+					}
+					break
+				}
+				if strings.HasPrefix(cond.tag, "buildmode:") {
+					value := strings.TrimPrefix(cond.tag, "buildmode:")
+					ok = sys.BuildModeSupported(runtime.Compiler, value, runtime.GOOS, runtime.GOARCH)
+					break
+				}
 				if !imports.KnownArch[cond.tag] && !imports.KnownOS[cond.tag] && cond.tag != "gc" && cond.tag != "gccgo" {
 					ts.fatalf("unknown condition %q", cond.tag)
 				}
@@ -414,6 +432,7 @@
 		ts.fatalf("%s is not a directory", dir)
 	}
 	ts.cd = dir
+	ts.envMap["PWD"] = dir
 	fmt.Fprintf(&ts.log, "%s\n", ts.cd)
 }
 
@@ -429,7 +448,11 @@
 	if err != nil || perm&uint64(os.ModePerm) != perm {
 		ts.fatalf("invalid mode: %s", args[0])
 	}
-	for _, path := range args[1:] {
+	for _, arg := range args[1:] {
+		path := arg
+		if !filepath.IsAbs(path) {
+			path = filepath.Join(ts.cd, arg)
+		}
 		err := os.Chmod(path, os.FileMode(perm))
 		ts.check(err)
 	}
@@ -441,10 +464,15 @@
 		// It would be strange to say "this file can have any content except this precise byte sequence".
 		ts.fatalf("unsupported: ! cmp")
 	}
+	quiet := false
+	if len(args) > 0 && args[0] == "-q" {
+		quiet = true
+		args = args[1:]
+	}
 	if len(args) != 2 {
 		ts.fatalf("usage: cmp file1 file2")
 	}
-	ts.doCmdCmp(args, false)
+	ts.doCmdCmp(args, false, quiet)
 }
 
 // cmpenv compares two files with environment variable substitution.
@@ -452,13 +480,18 @@
 	if neg {
 		ts.fatalf("unsupported: ! cmpenv")
 	}
+	quiet := false
+	if len(args) > 0 && args[0] == "-q" {
+		quiet = true
+		args = args[1:]
+	}
 	if len(args) != 2 {
 		ts.fatalf("usage: cmpenv file1 file2")
 	}
-	ts.doCmdCmp(args, true)
+	ts.doCmdCmp(args, true, quiet)
 }
 
-func (ts *testScript) doCmdCmp(args []string, env bool) {
+func (ts *testScript) doCmdCmp(args []string, env, quiet bool) {
 	name1, name2 := args[0], args[1]
 	var text1, text2 string
 	if name1 == "stdout" {
@@ -484,15 +517,14 @@
 		return
 	}
 
-	fmt.Fprintf(&ts.log, "[diff -%s +%s]\n%s\n", name1, name2, diff(text1, text2))
+	if !quiet {
+		fmt.Fprintf(&ts.log, "[diff -%s +%s]\n%s\n", name1, name2, diff(text1, text2))
+	}
 	ts.fatalf("%s and %s differ", name1, name2)
 }
 
 // cp copies files, maybe eventually directories.
 func (ts *testScript) cmdCp(neg bool, args []string) {
-	if neg {
-		ts.fatalf("unsupported: ! cp")
-	}
 	if len(args) < 2 {
 		ts.fatalf("usage: cp src... dst")
 	}
@@ -531,7 +563,14 @@
 		if dstDir {
 			targ = filepath.Join(dst, filepath.Base(src))
 		}
-		ts.check(ioutil.WriteFile(targ, data, mode))
+		err := ioutil.WriteFile(targ, data, mode)
+		if neg {
+			if err == nil {
+				ts.fatalf("unexpected command success")
+			}
+		} else {
+			ts.check(err)
+		}
 	}
 }
 
@@ -547,26 +586,31 @@
 		args = args[1:]
 	}
 
+	var out strings.Builder
 	if len(args) == 0 {
 		printed := make(map[string]bool) // env list can have duplicates; only print effective value (from envMap) once
 		for _, kv := range ts.env {
 			k := kv[:strings.Index(kv, "=")]
 			if !printed[k] {
-				fmt.Fprintf(&ts.log, "%s=%s\n", k, ts.envMap[k])
+				fmt.Fprintf(&out, "%s=%s\n", k, ts.envMap[k])
 			}
 		}
-		return
-	}
-	for _, env := range args {
-		i := strings.Index(env, "=")
-		if i < 0 {
-			// Display value instead of setting it.
-			fmt.Fprintf(&ts.log, "%s=%s\n", env, ts.envMap[env])
-			continue
+	} else {
+		for _, env := range args {
+			i := strings.Index(env, "=")
+			if i < 0 {
+				// Display value instead of setting it.
+				fmt.Fprintf(&out, "%s=%s\n", env, ts.envMap[env])
+				continue
+			}
+			key, val := env[:i], conv(env[i+1:])
+			ts.env = append(ts.env, key+"="+val)
+			ts.envMap[key] = val
 		}
-		key, val := env[:i], conv(env[i+1:])
-		ts.env = append(ts.env, key+"="+val)
-		ts.envMap[key] = val
+	}
+	if out.Len() > 0 || len(args) > 0 {
+		ts.stdout = out.String()
+		ts.log.WriteString(out.String())
 	}
 }
 
diff --git a/libgo/go/cmd/go/testdata/dep_test.go b/libgo/go/cmd/go/testdata/dep_test.go
deleted file mode 100644
index ac39a5b..0000000
--- a/libgo/go/cmd/go/testdata/dep_test.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package deps
-
-import _ "testing"
diff --git a/libgo/go/cmd/go/testdata/local/easy.go b/libgo/go/cmd/go/testdata/local/easy.go
deleted file mode 100644
index 4eeb517..0000000
--- a/libgo/go/cmd/go/testdata/local/easy.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package main
-
-import "./easysub"
-
-func main() {
-	easysub.Hello()
-}
diff --git a/libgo/go/cmd/go/testdata/local/easysub/easysub.go b/libgo/go/cmd/go/testdata/local/easysub/easysub.go
deleted file mode 100644
index 07040da..0000000
--- a/libgo/go/cmd/go/testdata/local/easysub/easysub.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package easysub
-
-import "fmt"
-
-func Hello() {
-	fmt.Println("easysub.Hello")
-}
diff --git a/libgo/go/cmd/go/testdata/local/easysub/main.go b/libgo/go/cmd/go/testdata/local/easysub/main.go
deleted file mode 100644
index 6c30b52..0000000
--- a/libgo/go/cmd/go/testdata/local/easysub/main.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// +build ignore
-
-package main
-
-import "."
-
-func main() {
-	easysub.Hello()
-}
diff --git a/libgo/go/cmd/go/testdata/local/hard.go b/libgo/go/cmd/go/testdata/local/hard.go
deleted file mode 100644
index 2ffac3f..0000000
--- a/libgo/go/cmd/go/testdata/local/hard.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package main
-
-import "./sub"
-
-func main() {
-	sub.Hello()
-}
diff --git a/libgo/go/cmd/go/testdata/local/sub/sub.go b/libgo/go/cmd/go/testdata/local/sub/sub.go
deleted file mode 100644
index d5dbf6d..0000000
--- a/libgo/go/cmd/go/testdata/local/sub/sub.go
+++ /dev/null
@@ -1,12 +0,0 @@
-package sub
-
-import (
-	"fmt"
-
-	subsub "./sub"
-)
-
-func Hello() {
-	fmt.Println("sub.Hello")
-	subsub.Hello()
-}
diff --git a/libgo/go/cmd/go/testdata/local/sub/sub/subsub.go b/libgo/go/cmd/go/testdata/local/sub/sub/subsub.go
deleted file mode 100644
index 4cc7223..0000000
--- a/libgo/go/cmd/go/testdata/local/sub/sub/subsub.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package subsub
-
-import "fmt"
-
-func Hello() {
-	fmt.Println("subsub.Hello")
-}
diff --git a/libgo/go/cmd/go/testdata/mod/example.com_dotgo.go_v1.0.0.txt b/libgo/go/cmd/go/testdata/mod/example.com_dotgo.go_v1.0.0.txt
new file mode 100644
index 0000000..4f7f4d7
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/mod/example.com_dotgo.go_v1.0.0.txt
@@ -0,0 +1,16 @@
+This module's path ends with ".go".
+Based on github.com/nats-io/nats.go.
+Used in regression tests for golang.org/issue/32483.
+
+-- .mod --
+module example.com/dotgo.go
+
+go 1.13
+-- .info --
+{"Version":"v1.0.0"}
+-- go.mod --
+module example.com/dotgo.go
+
+go 1.13
+-- dotgo.go --
+package dotgo
diff --git a/libgo/go/cmd/go/testdata/mod/example.com_stack_v1.0.0.txt b/libgo/go/cmd/go/testdata/mod/example.com_stack_v1.0.0.txt
new file mode 100644
index 0000000..787b7ae
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/mod/example.com_stack_v1.0.0.txt
@@ -0,0 +1,18 @@
+Module with a function that prints file name for the top stack frame.
+Different versions of this module are identical, but they should return
+different file names with -trimpath.
+-- .mod --
+module example.com/stack
+
+go 1.14
+-- .info --
+{"Version":"v1.0.0"}
+-- stack.go --
+package stack
+
+import "runtime"
+
+func TopFile() string {
+	_, file, _, _ := runtime.Caller(0)
+	return file
+}
diff --git a/libgo/go/cmd/go/testdata/mod/example.com_stack_v1.0.1.txt b/libgo/go/cmd/go/testdata/mod/example.com_stack_v1.0.1.txt
new file mode 100644
index 0000000..c715dd2
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/mod/example.com_stack_v1.0.1.txt
@@ -0,0 +1,18 @@
+Module with a function that prints file name for the top stack frame.
+Different versions of this module are identical, but they should return
+different file names with -trimpath.
+-- .mod --
+module example.com/stack
+
+go 1.14
+-- .info --
+{"Version":"v1.0.1"}
+-- stack.go --
+package stack
+
+import "runtime"
+
+func TopFile() string {
+	_, file, _, _ := runtime.Caller(0)
+	return file
+}
diff --git a/libgo/go/cmd/go/testdata/mod/not-rsc.io_quote_v0.1.0-nomod.txt b/libgo/go/cmd/go/testdata/mod/not-rsc.io_quote_v0.1.0-nomod.txt
new file mode 100644
index 0000000..efff088
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/mod/not-rsc.io_quote_v0.1.0-nomod.txt
@@ -0,0 +1,59 @@
+Constructed by hand.
+(derived from rsc.io/quote@e7a685a342, but without an explicit go.mod file.)
+
+-- .mod --
+module "not-rsc.io/quote"
+-- .info --
+{"Version":"v0.1.0-nomod","Time":"2018-02-14T00:51:33Z"}
+-- quote.go --
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package quote collects pithy sayings.
+package quote // import "rsc.io/quote"
+
+// Hello returns a greeting.
+func Hello() string {
+	return "Hello, world."
+}
+
+// Glass returns a useful phrase for world travelers.
+func Glass() string {
+	// See http://www.oocities.org/nodotus/hbglass.html.
+	return "I can eat glass and it doesn't hurt me."
+}
+
+// Go returns a Go proverb.
+func Go() string {
+	return "Don't communicate by sharing memory, share memory by communicating."
+}
+-- quote_test.go --
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package quote
+
+import "testing"
+
+func TestHello(t *testing.T) {
+	hello := "Hello, world."
+	if out := Hello(); out != hello {
+		t.Errorf("Hello() = %q, want %q", out, hello)
+	}
+}
+
+func TestGlass(t *testing.T) {
+	glass := "I can eat glass and it doesn't hurt me."
+	if out := Glass(); out != glass {
+		t.Errorf("Glass() = %q, want %q", out, glass)
+	}
+}
+
+func TestGo(t *testing.T) {
+	go1 := "Don't communicate by sharing memory. Share memory by communicating."
+	if out := Go(); out != go1 {
+		t.Errorf("Go() = %q, want %q", out, go1)
+	}
+}
diff --git a/libgo/go/cmd/go/testdata/print_goroot.go b/libgo/go/cmd/go/testdata/print_goroot.go
index 5477291..91fbf7d 100644
--- a/libgo/go/cmd/go/testdata/print_goroot.go
+++ b/libgo/go/cmd/go/testdata/print_goroot.go
@@ -4,8 +4,11 @@
 
 package main
 
-import "runtime"
+import (
+	"fmt"
+	"runtime"
+)
 
 func main() {
-	println(runtime.GOROOT())
+	fmt.Println(runtime.GOROOT())
 }
diff --git a/libgo/go/cmd/go/testdata/script/README b/libgo/go/cmd/go/testdata/script/README
index 66ab851..2782a09 100644
--- a/libgo/go/cmd/go/testdata/script/README
+++ b/libgo/go/cmd/go/testdata/script/README
@@ -38,6 +38,7 @@
 	TMPDIR=$WORK/tmp
 	devnull=<value of os.DevNull>
 	goversion=<current Go version; for example, 1.12>
+	:=<OS-specific path list separator>
 
 The scripts supporting files are unpacked relative to $GOPATH/src (aka $WORK/gopath/src)
 and then the script begins execution in that directory as well. Thus the example above runs
@@ -77,9 +78,13 @@
    - [root] for os.Geteuid() == 0
    - [symlink] for testenv.HasSymlink()
    - [exec:prog] for whether prog is available for execution (found by exec.LookPath)
+   - [GODEBUG:value] for whether value is one of the comma-separated entries in the GODEBUG variable
+   - [buildmode:value] for whether -buildmode=value is supported
 
 A condition can be negated: [!short] means to run the rest of the line
-when testing.Short() is false.
+when testing.Short() is false. Multiple conditions may be given for a single
+command, for example, '[linux] [amd64] skip'. The command will run if all conditions
+are satisfied.
 
 The commands are:
 
@@ -105,13 +110,14 @@
   Like cmp, but environment variables are substituted in the file contents
   before the comparison. For example, $GOOS is replaced by the target GOOS.
 
-- cp src... dst
+- [!] cp src... dst
   Copy the listed files to the target file or existing directory.
   src can include "stdout" or "stderr" to use the standard output or standard error
   from the most recent exec or go command.
 
 - env [-r] [key=value...]
-  With no arguments, print the environment (useful for debugging).
+  With no arguments, print the environment to stdout
+  (useful for debugging and for verifying initial state).
   Otherwise add the listed key=value pairs to the environment.
   The -r flag causes the values to be escaped using regexp.QuoteMeta
   before being recorded.
@@ -160,7 +166,7 @@
 
 - [!] stdout [-count=N] pattern
   Apply the grep command (see above) to the standard output
-  from the most recent exec, go, or wait command.
+  from the most recent exec, go, wait, or env command.
 
 - stop [message]
   Stop the test early (marking it as passing), including the message if given.
diff --git a/libgo/go/cmd/go/testdata/script/bug.txt b/libgo/go/cmd/go/testdata/script/bug.txt
index db3ac25..f52250a 100644
--- a/libgo/go/cmd/go/testdata/script/bug.txt
+++ b/libgo/go/cmd/go/testdata/script/bug.txt
@@ -1,14 +1,15 @@
 # Verify that go bug creates the appropriate URL issue body
 
 [!linux] skip
+[gccgo] skip
 
 go install
 env BROWSER=$GOPATH/bin/browser
 go bug
 exists $TMPDIR/browser
 grep '^go version' $TMPDIR/browser
-[!gccgo] grep '^GOROOT/bin/go version: go version' $TMPDIR/browser
-[!gccgo] grep '^GOROOT/bin/go tool compile -V: compile version' $TMPDIR/browser
+grep '^GOROOT/bin/go version: go version' $TMPDIR/browser
+grep '^GOROOT/bin/go tool compile -V: compile version' $TMPDIR/browser
 grep '^uname -sr: Linux' $TMPDIR/browser
 
 -- go.mod --
diff --git a/libgo/go/cmd/go/testdata/script/build_cache_trimpath.txt b/libgo/go/cmd/go/testdata/script/build_cache_trimpath.txt
index 39367ae..9a4b9d7 100644
--- a/libgo/go/cmd/go/testdata/script/build_cache_trimpath.txt
+++ b/libgo/go/cmd/go/testdata/script/build_cache_trimpath.txt
@@ -1,3 +1,4 @@
+[short] skip
 env GO111MODULE=on
 
 # Set up fresh GOCACHE.
@@ -12,9 +13,35 @@
 stderr '(compile|gccgo)( |\.exe)'
 stderr 'link( |\.exe)'
 
+# Two distinct versions of the same module with identical content should
+# still be cached separately.
+# Verifies golang.org/issue/35412.
+go get -d example.com/stack@v1.0.0
+go run -trimpath printstack.go
+stdout '^example.com/stack@v1.0.0/stack.go$'
+go get -d example.com/stack@v1.0.1
+go run -trimpath printstack.go
+stdout '^example.com/stack@v1.0.1/stack.go$'
+
 -- $WORK/hello.go --
 package main
 func main() { println("hello") }
 
+-- $WORK/printstack.go --
+// +build ignore
+
+package main
+
+import (
+	"fmt"
+
+	"example.com/stack"
+)
+
+func main() {
+	fmt.Println(stack.TopFile())
+}
 -- $WORK/go.mod --
 module m
+
+go 1.14
diff --git a/libgo/go/cmd/go/testdata/script/build_gcflags.txt b/libgo/go/cmd/go/testdata/script/build_gcflags.txt
new file mode 100644
index 0000000..e0accb1
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/build_gcflags.txt
@@ -0,0 +1,21 @@
+env GO111MODULE=off
+
+# Test that the user can override default code generation flags.
+
+[gccgo] skip  # gccgo does not use -gcflags
+[!cgo] skip
+[!linux] skip  # test only works if c-archive implies -shared
+[short] skip
+
+go build -x -buildmode=c-archive -gcflags=all=-shared=false ./override.go
+stderr '^.*/compile (.* )?-shared (.* )?-shared=false'
+
+-- override.go --
+package main
+
+import "C"
+
+//export GoFunc
+func GoFunc() {}
+
+func main() {}
diff --git a/libgo/go/cmd/go/testdata/script/build_i.txt b/libgo/go/cmd/go/testdata/script/build_i.txt
new file mode 100644
index 0000000..0e7ebed
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/build_i.txt
@@ -0,0 +1,41 @@
+env GO111MODULE=off
+
+# Test that 'go build -i' installs dependencies of the requested package.
+
+[short] skip
+
+# Since we are checking installation of dependencies, use a clean cache
+# to ensure that multiple runs of the test do not interfere.
+env GOCACHE=$WORK/cache
+
+# The initial 'go build -i' for bar should install its dependency foo.
+
+go build -v -i x/y/bar
+stderr 'x/y/foo'    # should be rebuilt
+go build -v -i x/y/bar
+! stderr 'x/y/foo'  # should already be installed
+
+# After modifying the source files, both packages should be rebuild.
+
+cp x/y/foo/foo.go.next x/y/foo/foo.go
+cp x/y/bar/bar.go.next x/y/bar/bar.go
+
+go build -v -i x/y/bar
+stderr 'x/y/foo'    # should be rebuilt
+go build -v -i x/y/bar
+! stderr 'x/y/foo'  # should already be installed
+
+-- x/y/foo/foo.go --
+package foo
+func F() {}
+-- x/y/bar/bar.go --
+package bar
+import "x/y/foo"
+func F() { foo.F() }
+-- x/y/foo/foo.go.next --
+package foo
+func F() { F() }
+-- x/y/bar/bar.go.next --
+package main
+import "x/y/foo"
+func main() { foo.F() }
diff --git a/libgo/go/cmd/go/testdata/script/build_multi_main.txt b/libgo/go/cmd/go/testdata/script/build_multi_main.txt
index 1d4926d..8afd8b8 100644
--- a/libgo/go/cmd/go/testdata/script/build_multi_main.txt
+++ b/libgo/go/cmd/go/testdata/script/build_multi_main.txt
@@ -10,6 +10,11 @@
 ! go build ./cmd/c1
 stderr 'already exists and is a directory'
 
+# Verify build -o output correctly local packages
+mkdir $WORK/local
+go build -o $WORK/local ./exec.go
+exists $WORK/local/exec$GOEXE
+
 -- go.mod --
 module exmod
 
@@ -29,5 +34,10 @@
 -- pkg2/pkg2.go --
 package pkg2
 
+-- exec.go --
+package main
+
+func main() {}
+
 -- c1$GOEXE/keep.txt --
 Create c1 directory.
diff --git a/libgo/go/cmd/go/testdata/script/build_trimpath.txt b/libgo/go/cmd/go/testdata/script/build_trimpath.txt
index f785b0c..cfab807 100644
--- a/libgo/go/cmd/go/testdata/script/build_trimpath.txt
+++ b/libgo/go/cmd/go/testdata/script/build_trimpath.txt
@@ -1,21 +1,132 @@
 [short] skip
 
-env -r GOROOT_REGEXP=$GOROOT
-env -r WORK_REGEXP=$WORK
-env GOROOT GOROOT_REGEXP WORK WORK_REGEXP
-
-go build -trimpath -o hello.exe hello.go
-! grep -q $GOROOT_REGEXP hello.exe
-! grep -q $WORK_REGEXP hello.exe
-
+# Set up two identical directories that can be used as GOPATH.
 env GO111MODULE=on
-go build -trimpath -o fortune.exe rsc.io/fortune
-! grep -q $GOROOT_REGEXP fortune.exe
-! grep -q $WORK_REGEXP fortune.exe
+mkdir $WORK/a/src/paths $WORK/b/src/paths
+cp paths.go $WORK/a/src/paths
+cp paths.go $WORK/b/src/paths
+cp go.mod $WORK/a/src/paths/
+cp go.mod $WORK/b/src/paths/
 
--- hello.go --
+
+# A binary built without -trimpath should contain the module root dir
+# and GOROOT for debugging and stack traces.
+cd $WORK/a/src/paths
+go build -o $WORK/paths-dbg.exe .
+exec $WORK/paths-dbg.exe $WORK/paths-dbg.exe
+stdout 'binary contains module root: true'
+stdout 'binary contains GOROOT: true'
+
+# A binary built with -trimpath should not contain the current workspace
+# or GOROOT.
+go build -trimpath -o $WORK/paths-a.exe .
+exec $WORK/paths-a.exe $WORK/paths-a.exe
+stdout 'binary contains module root: false'
+stdout 'binary contains GOROOT: false'
+
+# A binary from an external module built with -trimpath should not contain
+# the current workspace or GOROOT.
+go get -trimpath rsc.io/fortune
+exec $WORK/paths-a.exe $GOPATH/bin/fortune$GOEXE
+stdout 'binary contains module root: false'
+stdout 'binary contains GOROOT: false'
+go mod edit -droprequire rsc.io/fortune
+
+# Two binaries built from identical packages in different directories
+# should be identical.
+cd $WORK/b/src/paths
+go build -trimpath -o $WORK/paths-b.exe
+cmp -q $WORK/paths-a.exe $WORK/paths-b.exe
+
+
+# Same sequence of tests but in GOPATH mode.
+# A binary built without -trimpath should contain GOPATH and GOROOT.
+env GO111MODULE=off
+cd $WORK
+env GOPATH=$WORK/a
+go build -o paths-dbg.exe paths
+exec ./paths-dbg.exe paths-dbg.exe
+stdout 'binary contains GOPATH: true'
+stdout 'binary contains GOROOT: true'
+
+# A binary built with -trimpath should not contain GOPATH or GOROOT.
+go build -trimpath -o paths-a.exe paths
+exec ./paths-a.exe paths-a.exe
+stdout 'binary contains GOPATH: false'
+stdout 'binary contains GOROOT: false'
+
+# Two binaries built from identical packages in different GOPATH roots
+# should be identical.
+env GOPATH=$WORK/b
+go build -trimpath -o paths-b.exe paths
+cmp -q paths-a.exe paths-b.exe
+
+
+# Same sequence of tests but with gccgo.
+# gccgo does not support builds in module mode.
+[!exec:gccgo] stop
+env GOPATH=$WORK/a
+
+# A binary built with gccgo without -trimpath should contain the current
+# GOPATH and GOROOT.
+go build -compiler=gccgo -o paths-dbg.exe paths
+exec ./paths-dbg.exe paths-dbg.exe
+stdout 'binary contains GOPATH: true'
+stdout 'binary contains GOROOT: false' # gccgo doesn't load std from GOROOT.
+
+# A binary built with gccgo with -trimpath should not contain GOPATH or GOROOT.
+go build -compiler=gccgo -trimpath -o paths-a.exe paths
+exec ./paths-a.exe paths-a.exe
+stdout 'binary contains GOPATH: false'
+stdout 'binary contains GOROOT: false'
+
+# Two binaries built from identical packages in different directories
+# should be identical.
+env GOPATH=$WORK/b
+go build -compiler=gccgo -trimpath -o paths-b.exe paths
+cmp -q paths-a.exe paths-b.exe
+
+-- paths.go --
 package main
-func main() { println("hello") }
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+)
+
+func main() {
+	exe := os.Args[1]
+	data, err := ioutil.ReadFile(exe)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if os.Getenv("GO111MODULE") == "on" {
+		out, err := exec.Command("go", "env", "GOMOD").Output()
+		if err != nil {
+			log.Fatal(err)
+		}
+		modRoot := filepath.Dir(strings.TrimSpace(string(out)))
+		check(data, "module root", modRoot)
+	} else {
+		check(data, "GOPATH", os.Getenv("GOPATH"))
+	}
+	check(data, "GOROOT", os.Getenv("GOROOT"))
+}
+
+func check(data []byte, desc, dir string) {
+	containsDir := bytes.Contains(data, []byte(dir))
+	containsSlashDir := bytes.Contains(data, []byte(filepath.ToSlash(dir)))
+	fmt.Printf("binary contains %s: %v\n", desc, containsDir || containsSlashDir)
+}
 
 -- go.mod --
-module m
+module paths
+
+go 1.14
diff --git a/libgo/go/cmd/go/testdata/script/cache_vet.txt b/libgo/go/cmd/go/testdata/script/cache_vet.txt
new file mode 100644
index 0000000..928024e
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/cache_vet.txt
@@ -0,0 +1,22 @@
+env GO111MODULE=off
+
+[short] skip
+[GODEBUG:gocacheverify=1] skip
+[gccgo] skip  # gccgo has no standard packages
+
+# Start with a clean build cache:
+# test failures may be masked if the cache has just the right entries already.
+env GOCACHE=$WORK/cache
+
+# Run 'go vet os/user' once to warm up the cache.
+go vet os/user
+
+# Check that second vet reuses cgo-derived inputs.
+# The first command could be build instead of vet,
+# except that if the cache is empty and there's a net.a
+# in GOROOT/pkg, the build will not bother to regenerate
+# and cache the cgo outputs, whereas vet always will.
+
+go vet -x os/user
+! stderr '^(clang|gcc)'  # should not have run compiler
+! stderr '[\\/]cgo '     # should not have run cgo
diff --git a/libgo/go/cmd/go/testdata/script/cmd_import_error.txt b/libgo/go/cmd/go/testdata/script/cmd_import_error.txt
index ba94f9b..685c606 100644
--- a/libgo/go/cmd/go/testdata/script/cmd_import_error.txt
+++ b/libgo/go/cmd/go/testdata/script/cmd_import_error.txt
@@ -5,7 +5,7 @@
 # a clear error in module mode.
 
 ! go list cmd/unknown
-stderr '^can''t load package: package cmd/unknown: package cmd/unknown is not in GOROOT \('$GOROOT'[/\\]src[/\\]cmd[/\\]unknown\)$'
+stderr '^can''t load package: package cmd/unknown is not in GOROOT \('$GOROOT'[/\\]src[/\\]cmd[/\\]unknown\)$'
 
 go list -f '{{range .DepsErrors}}{{.Err}}{{end}}' x.go
 stdout '^package cmd/unknown is not in GOROOT \('$GOROOT'[/\\]src[/\\]cmd[/\\]unknown\)$'
diff --git a/libgo/go/cmd/go/testdata/script/cover_mod_empty.txt b/libgo/go/cmd/go/testdata/script/cover_mod_empty.txt
new file mode 100644
index 0000000..20c9199
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/cover_mod_empty.txt
@@ -0,0 +1,11 @@
+[gccgo] skip
+
+go tool cover -func=cover.out
+stdout total.*statements.*0.0%
+
+go mod init golang.org/issue/33855
+
+go tool cover -func=cover.out
+stdout total.*statements.*0.0%
+
+-- cover.out --
diff --git a/libgo/go/cmd/go/testdata/script/cover_modes.txt b/libgo/go/cmd/go/testdata/script/cover_modes.txt
new file mode 100644
index 0000000..f8a399d
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/cover_modes.txt
@@ -0,0 +1,25 @@
+env GO111MODULE=off
+
+# Coverage analysis should use 'set' mode by default,
+# and should merge coverage profiles correctly.
+
+[short] skip
+[gccgo] skip # gccgo has no cover tool
+
+go test -short -cover encoding/binary errors -coverprofile=$WORK/cover.out
+! stderr '[^0-9]0\.0%'
+! stdout '[^0-9]0\.0%'
+
+grep -count=1 '^mode: set$' $WORK/cover.out
+grep 'errors\.go' $WORK/cover.out
+grep 'binary\.go' $WORK/cover.out
+
+[!race] stop
+
+go test -short -race -cover encoding/binary errors -coverprofile=$WORK/cover.out
+! stderr '[^0-9]0\.0%'
+! stdout '[^0-9]0\.0%'
+
+grep -count=1 '^mode: atomic$' $WORK/cover.out
+grep 'errors\.go' $WORK/cover.out
+grep 'binary\.go' $WORK/cover.out
diff --git a/libgo/go/cmd/go/testdata/script/cover_pkgall_multiple_mains.txt b/libgo/go/cmd/go/testdata/script/cover_pkgall_multiple_mains.txt
index ab7cd66..f21cd8b 100644
--- a/libgo/go/cmd/go/testdata/script/cover_pkgall_multiple_mains.txt
+++ b/libgo/go/cmd/go/testdata/script/cover_pkgall_multiple_mains.txt
@@ -1,29 +1,32 @@
 # This test checks that multiple main packages can be tested
 # with -coverpkg=all without duplicate symbol errors.
-# Verifies golang.org/issue/30374.
-
-env GO111MODULE=on
+# Verifies golang.org/issue/30374, golang.org/issue/34114.
 
 [short] skip
+cd $GOPATH/src/example.com/cov
 
+env GO111MODULE=on
 go test -coverpkg=all ./...
 
--- go.mod --
+env GO111MODULE=off
+go test -coverpkg=all ./...
+
+-- $GOPATH/src/example.com/cov/go.mod --
 module example.com/cov
 
--- mainonly/mainonly.go --
+-- $GOPATH/src/example.com/cov/mainonly/mainonly.go --
 package main
 
 func main() {}
 
--- mainwithtest/mainwithtest.go --
+-- $GOPATH/src/example.com/cov/mainwithtest/mainwithtest.go --
 package main
 
 func main() {}
 
 func Foo() {}
 
--- mainwithtest/mainwithtest_test.go --
+-- $GOPATH/src/example.com/cov/mainwithtest/mainwithtest_test.go --
 package main
 
 import "testing"
@@ -32,10 +35,10 @@
   Foo()
 }
 
--- xtest/x.go --
+-- $GOPATH/src/example.com/cov/xtest/x.go --
 package x
 
--- xtest/x_test.go --
+-- $GOPATH/src/example.com/cov/xtest/x_test.go --
 package x_test
 
 import "testing"
diff --git a/libgo/go/cmd/go/testdata/script/devnull.txt b/libgo/go/cmd/go/testdata/script/devnull.txt
new file mode 100644
index 0000000..ccb866a
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/devnull.txt
@@ -0,0 +1,26 @@
+env GO111MODULE=off
+
+# Issue 28035: go test -c -o NUL should work.
+# Issue 28549: go test -c -o /dev/null should not overwrite /dev/null when run as root.
+cd x
+cmp $devnull $WORK/empty.txt
+go test -o=$devnull -c
+! exists x.test$GOEXE
+cmp $devnull $WORK/empty.txt
+
+# Issue 12407: go build -o /dev/null should succeed.
+cd ..
+go build -o $devnull y
+cmp $devnull $WORK/empty.txt
+
+-- x/x_test.go --
+package x_test
+import (
+    "testing"
+)
+func TestNUL(t *testing.T) {
+}
+-- y/y.go --
+package y
+func main() {}
+-- $WORK/empty.txt --
diff --git a/libgo/go/cmd/go/testdata/script/env_write.txt b/libgo/go/cmd/go/testdata/script/env_write.txt
index 695cc83..1cc0846 100644
--- a/libgo/go/cmd/go/testdata/script/env_write.txt
+++ b/libgo/go/cmd/go/testdata/script/env_write.txt
@@ -85,3 +85,36 @@
 # go env -w rejects missing variables
 ! go env -w GOOS
 stderr 'arguments must be KEY=VALUE: invalid argument: GOOS'
+
+# go env -w rejects invalid GO111MODULE values, as otherwise cmd/go would break
+! go env -w GO111MODULE=badvalue
+stderr 'invalid GO111MODULE value "badvalue"'
+
+# go env -w rejects invalid GOPATH values
+! go env -w GOPATH=~/go
+stderr 'GOPATH entry cannot start with shell metacharacter'
+
+! go env -w GOPATH=./go
+stderr 'GOPATH entry is relative; must be absolute path'
+
+# go env -w/-u checks validity of GOOS/ARCH combinations
+[gccgo] skip
+env GOOS=
+env GOARCH=
+# check -w doesn't allow invalid GOOS
+! go env -w GOOS=linuxx
+stderr 'unsupported GOOS/GOARCH pair linuxx'
+# check -w doesn't allow invalid GOARCH
+! go env -w GOARCH=amd644
+stderr 'unsupported GOOS/GOARCH.*/amd644$'
+# check -w doesn't allow invalid GOOS with valid GOARCH
+! go env -w GOOS=linuxx GOARCH=amd64
+stderr 'unsupported GOOS/GOARCH pair linuxx'
+# check a valid GOOS and GOARCH values but an incompatible combinations
+! go env -w GOOS=android GOARCH=s390x
+stderr 'unsupported GOOS/GOARCH pair android/s390x'
+# check that -u considers explicit envs
+go env -w GOOS=linux GOARCH=mips
+env GOOS=windows
+! go env -u GOOS
+stderr 'unsupported GOOS/GOARCH.*windows/mips$'
diff --git a/libgo/go/cmd/go/testdata/script/fmt_load_errors.txt b/libgo/go/cmd/go/testdata/script/fmt_load_errors.txt
new file mode 100644
index 0000000..297ec0f
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/fmt_load_errors.txt
@@ -0,0 +1,19 @@
+env GO111MODULE=off
+
+! go fmt does-not-exist
+
+go fmt -n exclude
+stdout 'exclude[/\\]x\.go'
+stdout 'exclude[/\\]x_linux\.go'
+
+-- exclude/empty/x.txt --
+-- exclude/ignore/_x.go --
+package x
+-- exclude/x.go --
+// +build linux,!linux
+
+package x
+-- exclude/x_linux.go --
+// +build windows
+
+package x
diff --git a/libgo/go/cmd/go/testdata/script/gccgo_m.txt b/libgo/go/cmd/go/testdata/script/gccgo_m.txt
new file mode 100644
index 0000000..b63ba46
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/gccgo_m.txt
@@ -0,0 +1,19 @@
+# It's absurd, but builds with -compiler=gccgo used to fail to build module m.
+# golang.org/issue/34358
+
+env GO111MODULE=off
+
+[short] skip
+
+cd m
+go build
+exists m$GOEXE
+rm m$GOEXE
+[exec:gccgo] go build -compiler=gccgo
+[exec:gccgo] exists m$GOEXE
+
+-- m/go.mod --
+module m
+-- m/main.go --
+package main
+func main() {}
diff --git a/libgo/go/cmd/go/testdata/script/gccgo_mangle.txt b/libgo/go/cmd/go/testdata/script/gccgo_mangle.txt
new file mode 100644
index 0000000..7a09a80
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/gccgo_mangle.txt
@@ -0,0 +1,15 @@
+# Issue 33871.
+
+cd m/a.0
+go build
+
+-- m/go.mod --
+module m
+-- m/a.0/a.go --
+package a
+
+type T int
+
+func (t T) M() int {
+	return int(t)
+}
diff --git a/libgo/go/cmd/go/testdata/script/get_insecure_redirect.txt b/libgo/go/cmd/go/testdata/script/get_insecure_redirect.txt
index a83b176..0478d1f 100644
--- a/libgo/go/cmd/go/testdata/script/get_insecure_redirect.txt
+++ b/libgo/go/cmd/go/testdata/script/get_insecure_redirect.txt
@@ -1,11 +1,10 @@
 # golang.org/issue/29591: 'go get' was following plain-HTTP redirects even without -insecure.
+# golang.org/issue/34049: 'go get' would panic in case of an insecure redirect in GOPATH mode
 
 [!net] skip
 [!exec:git] skip
 
-env GO111MODULE=on
-env GOPROXY=direct
-env GOSUMDB=off
+env GO111MODULE=off
 
 ! go get -d vcs-test.golang.org/insecure/go/insecure
 stderr 'redirected .* to insecure URL'
diff --git a/libgo/go/cmd/go/testdata/script/goflags.txt b/libgo/go/cmd/go/testdata/script/goflags.txt
index fac6d80..686d113 100644
--- a/libgo/go/cmd/go/testdata/script/goflags.txt
+++ b/libgo/go/cmd/go/testdata/script/goflags.txt
@@ -49,3 +49,11 @@
 go env
 stdout GOFLAGS
 
+# Flags listed in GOFLAGS should be safe to duplicate on the command line.
+env GOFLAGS=-tags=magic
+go list -tags=magic
+go test -tags=magic -c -o $devnull
+go vet -tags=magic
+
+-- foo_test.go --
+package foo
diff --git a/libgo/go/cmd/go/testdata/script/gopath_install.txt b/libgo/go/cmd/go/testdata/script/gopath_install.txt
new file mode 100644
index 0000000..4b42fc5
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/gopath_install.txt
@@ -0,0 +1,53 @@
+# Regression test for 'go install' locations in GOPATH mode.
+env GO111MODULE=off
+[short] skip
+
+# Without $GOBIN set, binaries should be installed into the GOPATH bin directory.
+env GOBIN=
+rm $GOPATH/bin/go-cmd-test$GOEXE
+go install go-cmd-test
+exists $GOPATH/bin/go-cmd-test$GOEXE
+
+# With $GOBIN set, binaries should be installed to $GOBIN.
+env GOBIN=$WORK/bin1
+mkdir -p $GOBIN
+go install go-cmd-test
+exists $GOBIN/go-cmd-test$GOEXE
+
+# Issue 11065: installing to the current directory should create an executable.
+cd go-cmd-test
+env GOBIN=$PWD
+go install
+exists ./go-cmd-test$GOEXE
+cd ..
+
+# Without $GOBIN set, installing a program outside $GOPATH should fail
+# (there is nowhere to install it).
+env GOPATH= # reset to default ($HOME/go, which does not exist)
+env GOBIN=
+! go install go-cmd-test/helloworld.go
+stderr '^go install: no install location for \.go files listed on command line \(GOBIN not set\)$'
+
+# With $GOBIN set, should install there.
+env GOBIN=$WORK/bin1
+go install go-cmd-test/helloworld.go
+exists $GOBIN/helloworld$GOEXE
+
+# We can't assume that we can write to GOROOT, because it may not be writable.
+# However, we can check its install location using 'go list'.
+# cmd/fix should be installed to GOROOT/pkg, not GOPATH/bin.
+env GOPATH=$PWD
+go list -f '{{.Target}}' cmd/fix
+stdout $GOROOT'[/\\]pkg[/\\]tool[/\\]'$GOOS'_'$GOARCH'[/\\]fix'$GOEXE'$'
+
+# GOBIN should not affect toolchain install locations.
+env GOBIN=$WORK/bin1
+go list -f '{{.Target}}' cmd/fix
+stdout $GOROOT'[/\\]pkg[/\\]tool[/\\]'$GOOS'_'$GOARCH'[/\\]fix'$GOEXE'$'
+
+-- go-cmd-test/helloworld.go --
+package main
+
+func main() {
+	println("hello world")
+}
diff --git a/libgo/go/cmd/go/testdata/script/gopath_local.txt b/libgo/go/cmd/go/testdata/script/gopath_local.txt
new file mode 100644
index 0000000..7ee1f83
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/gopath_local.txt
@@ -0,0 +1,117 @@
+env GO111MODULE=off  # Relative imports only work in GOPATH mode.
+
+[short] skip
+
+# Imports should be resolved relative to the source file.
+go build testdata/local/easy.go
+exec ./easy$GOEXE
+stdout '^easysub\.Hello'
+
+# Ignored files should be able to import the package built from
+# non-ignored files in the same directory.
+go build -o easysub$GOEXE testdata/local/easysub/main.go
+exec ./easysub$GOEXE
+stdout '^easysub\.Hello'
+
+# Files in relative-imported packages should be able to
+# use relative imports themselves.
+go build testdata/local/hard.go
+exec ./hard$GOEXE
+stdout '^sub\.Hello'
+
+# Explicit source files listed on the command line should not install without
+# GOBIN set, since individual source files aren't part of the containing GOPATH.
+! go install testdata/local/easy.go
+stderr '^go install: no install location for \.go files listed on command line \(GOBIN not set\)$'
+
+[windows] stop  # Windows does not allow the ridiculous directory name we're about to use.
+
+env BAD_DIR_NAME='#$%:, &()*;<=>?\^{}'
+
+mkdir -p testdata/$BAD_DIR_NAME/easysub
+mkdir -p testdata/$BAD_DIR_NAME/sub/sub
+
+cp testdata/local/easy.go testdata/$BAD_DIR_NAME/easy.go
+cp testdata/local/easysub/easysub.go testdata/$BAD_DIR_NAME/easysub/easysub.go
+cp testdata/local/easysub/main.go testdata/$BAD_DIR_NAME/easysub/main.go
+cp testdata/local/hard.go testdata/$BAD_DIR_NAME/hard.go
+cp testdata/local/sub/sub.go testdata/$BAD_DIR_NAME/sub/sub.go
+cp testdata/local/sub/sub/subsub.go testdata/$BAD_DIR_NAME/sub/sub/subsub.go
+
+# Imports should be resolved relative to the source file.
+go build testdata/$BAD_DIR_NAME/easy.go
+exec ./easy$GOEXE
+stdout '^easysub\.Hello'
+
+# Ignored files should be able to import the package built from
+# non-ignored files in the same directory.
+go build -o easysub$GOEXE testdata/$BAD_DIR_NAME/easysub/main.go
+exec ./easysub$GOEXE
+stdout '^easysub\.Hello'
+
+# Files in relative-imported packages should be able to
+# use relative imports themselves.
+go build testdata/$BAD_DIR_NAME/hard.go
+exec ./hard$GOEXE
+stdout '^sub\.Hello'
+
+# Explicit source files listed on the command line should not install without
+# GOBIN set, since individual source files aren't part of the containing GOPATH.
+! go install testdata/$BAD_DIR_NAME/easy.go
+stderr '^go install: no install location for \.go files listed on command line \(GOBIN not set\)$'
+
+-- testdata/local/easy.go --
+package main
+
+import "./easysub"
+
+func main() {
+	easysub.Hello()
+}
+-- testdata/local/easysub/easysub.go --
+package easysub
+
+import "fmt"
+
+func Hello() {
+	fmt.Println("easysub.Hello")
+}
+-- testdata/local/easysub/main.go --
+// +build ignore
+
+package main
+
+import "."
+
+func main() {
+	easysub.Hello()
+}
+-- testdata/local/hard.go --
+package main
+
+import "./sub"
+
+func main() {
+	sub.Hello()
+}
+-- testdata/local/sub/sub.go --
+package sub
+
+import (
+	"fmt"
+
+	subsub "./sub"
+)
+
+func Hello() {
+	fmt.Println("sub.Hello")
+	subsub.Hello()
+}
+-- testdata/local/sub/sub/subsub.go --
+package subsub
+
+import "fmt"
+
+func Hello() {
+	fmt.Println("subsub.Hello")
+}
diff --git a/libgo/go/cmd/go/testdata/script/gopath_moved_repo.txt b/libgo/go/cmd/go/testdata/script/gopath_moved_repo.txt
new file mode 100644
index 0000000..869980d
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/gopath_moved_repo.txt
@@ -0,0 +1,68 @@
+env GO111MODULE=off
+
+# Test that 'go get -u' reports packages whose VCS configurations do not
+# match their import paths.
+
+[!net] skip
+[short] skip
+
+# We need to execute a custom Go program to break the config files.
+#
+# git will ask for a username and password when we run 'go get -d -f -u',
+# so we also need to set GIT_ASKPASS. Conveniently, a single binary can
+# perform both tasks!
+
+go build -o replace.exe replace
+env GIT_ASKPASS=$PWD/replace.exe
+
+
+# Test that 'go get -u' reports moved git packages.
+
+[exec:git] go get -d rsc.io/pdf
+[exec:git] go get -d -u rsc.io/pdf
+[exec:git] exec ./replace.exe pdf rsc.io/pdf/.git/config
+
+[exec:git] ! go get -d -u rsc.io/pdf
+[exec:git] stderr 'is a custom import path for'
+[exec:git] ! go get -d -f -u rsc.io/pdf
+[exec:git] stderr 'validating server certificate|[nN]ot [fF]ound'
+
+
+# Test that 'go get -u' reports moved Mercurial packages.
+
+[exec:hg] go get -d vcs-test.golang.org/go/custom-hg-hello
+[exec:hg] go get -d -u vcs-test.golang.org/go/custom-hg-hello
+[exec:hg] exec ./replace.exe custom-hg-hello vcs-test.golang.org/go/custom-hg-hello/.hg/hgrc
+
+[exec:hg] ! go get -d -u vcs-test.golang.org/go/custom-hg-hello
+[exec:hg] stderr 'is a custom import path for'
+[exec:hg] ! go get -d -f -u vcs-test.golang.org/go/custom-hg-hello
+[exec:hg] stderr 'validating server certificate|[nN]ot [fF]ound'
+
+
+-- replace/replace.go --
+package main
+
+import (
+	"bytes"
+	"io/ioutil"
+	"log"
+	"os"
+)
+
+func main() {
+	if len(os.Args) < 3 {
+		return
+	}
+
+	base := []byte(os.Args[1])
+	path := os.Args[2]
+	data, err := ioutil.ReadFile(path)
+	if err != nil {
+		log.Fatal(err)
+	}
+	err = ioutil.WriteFile(path, bytes.ReplaceAll(data, base, append(base, "XXX"...)), 0644)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
diff --git a/libgo/go/cmd/go/testdata/script/gopath_paths.txt b/libgo/go/cmd/go/testdata/script/gopath_paths.txt
new file mode 100644
index 0000000..04265b1
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/gopath_paths.txt
@@ -0,0 +1,43 @@
+# Regression test for GOPATH validation in GOPATH mode.
+env GO111MODULE=off
+
+env ORIG_GOPATH=$GOPATH
+
+# The literal path '.' in GOPATH should be rejected.
+env GOPATH=.
+! go build go-cmd-test/helloworld.go
+stderr 'GOPATH entry is relative'
+
+# It should still be rejected if the requested package can be
+# found using another entry.
+env GOPATH=${:}$ORIG_GOPATH${:}.
+! go build go-cmd-test
+stderr 'GOPATH entry is relative'
+
+# GOPATH cannot be a relative subdirectory of the working directory.
+env ORIG_GOPATH
+stdout 'ORIG_GOPATH='$WORK[/\\]gopath
+cd $WORK
+env GOPATH=gopath
+! go build gopath/src/go-cmd-test/helloworld.go
+stderr 'GOPATH entry is relative'
+
+# Blank paths in GOPATH should be rejected as relative (issue 21928).
+env GOPATH=' '${:}$ORIG_GOPATH
+! go build go-cmd-test
+stderr 'GOPATH entry is relative'
+
+[short] stop
+
+# Empty paths in GOPATH should be ignored (issue 21928).
+env GOPATH=${:}$ORIG_GOPATH
+env GOPATH
+go install go-cmd-test
+exists $ORIG_GOPATH/bin/go-cmd-test$GOEXE
+
+-- go-cmd-test/helloworld.go --
+package main
+
+func main() {
+	println("hello world")
+}
diff --git a/libgo/go/cmd/go/testdata/script/import_main.txt b/libgo/go/cmd/go/testdata/script/import_main.txt
new file mode 100644
index 0000000..bc2cc4d
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/import_main.txt
@@ -0,0 +1,114 @@
+env GO111MODULE=off
+
+# Test that you cannot import a main package.
+# See golang.org/issue/4210 and golang.org/issue/17475.
+
+[short] skip
+cd $WORK
+
+# Importing package main from that package main's test should work.
+go build x
+go test -c x
+
+# Importing package main from another package should fail.
+! go build p1
+stderr 'import "x" is a program, not an importable package'
+
+# ... even in that package's test.
+go build p2
+! go test -c p2
+stderr 'import "x" is a program, not an importable package'
+
+# ... even if that package's test is an xtest.
+go build p3
+! go test p3
+stderr 'import "x" is a program, not an importable package'
+
+# ... even if that package is a package main
+go build p4
+! go test -c p4
+stderr 'import "x" is a program, not an importable package'
+
+# ... even if that package is a package main using an xtest.
+go build p5
+! go test -c p5
+stderr 'import "x" is a program, not an importable package'
+
+-- x/main.go --
+package main
+
+var X int
+
+func main() {}
+-- x/main_test.go --
+package main_test
+
+import (
+	"testing"
+	xmain "x"
+)
+
+var _ = xmain.X
+
+func TestFoo(t *testing.T) {}
+-- p1/p.go --
+package p1
+
+import xmain "x"
+
+var _ = xmain.X
+-- p2/p.go --
+package p2
+-- p2/p_test.go --
+package p2
+
+import (
+	"testing"
+	xmain "x"
+)
+
+var _ = xmain.X
+
+func TestFoo(t *testing.T) {}
+-- p3/p.go --
+package p
+-- p3/p_test.go --
+package p_test
+
+import (
+	"testing"
+	xmain "x"
+)
+
+var _ = xmain.X
+
+func TestFoo(t *testing.T) {}
+-- p4/p.go --
+package main
+
+func main() {}
+-- p4/p_test.go --
+package main
+
+import (
+	"testing"
+	xmain "x"
+)
+
+var _ = xmain.X
+
+func TestFoo(t *testing.T) {}
+-- p5/p.go --
+package main
+func main() {}
+-- p5/p_test.go --
+package main_test
+
+import (
+	"testing"
+	xmain "x"
+)
+
+var _ = xmain.X
+
+func TestFoo(t *testing.T) {}
diff --git a/libgo/go/cmd/go/testdata/script/install_cmd_gobin.txt b/libgo/go/cmd/go/testdata/script/install_cmd_gobin.txt
index 81649e2..4a5d8c8 100644
--- a/libgo/go/cmd/go/testdata/script/install_cmd_gobin.txt
+++ b/libgo/go/cmd/go/testdata/script/install_cmd_gobin.txt
@@ -1,6 +1,6 @@
 # Check that commands in cmd are install to $GOROOT/bin, not $GOBIN.
 # Verifies golang.org/issue/32674.
-[gccgo] stop
+[gccgo] skip
 env GOBIN=gobin
 mkdir gobin
 go list -f '{{.Target}}' cmd/go
diff --git a/libgo/go/cmd/go/testdata/script/install_cross_gobin.txt b/libgo/go/cmd/go/testdata/script/install_cross_gobin.txt
index 60aeed6..14cf722 100644
--- a/libgo/go/cmd/go/testdata/script/install_cross_gobin.txt
+++ b/libgo/go/cmd/go/testdata/script/install_cross_gobin.txt
@@ -1,11 +1,10 @@
 env GO111MODULE=off
 [!short] skip # rebuilds std for alternate architecture
+[gccgo] skip
 
 cd mycmd
 go build mycmd
 
-[gccgo] stop
-
 # cross-compile install with implicit GOBIN=$GOPATH/bin can make subdirectory
 env GOARCH=386
 [386] env GOARCH=amd64
diff --git a/libgo/go/cmd/go/testdata/script/link_syso_issue33139.txt b/libgo/go/cmd/go/testdata/script/link_syso_issue33139.txt
new file mode 100644
index 0000000..c2ca27a
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/link_syso_issue33139.txt
@@ -0,0 +1,43 @@
+# Test that we can use the external linker with a host syso file that is
+# embedded in a package, that is referenced by a Go assembly function.
+# See issue 33139.
+[!gc] skip
+[!exec:cc] skip
+
+# External linking is not supported on linux/ppc64.
+# See: https://github.com/golang/go/issues/8912
+[linux] [ppc64] skip
+
+# External linking is not supported on darwin/386 (10.14+).
+# See: https://github.com/golang/go/issues/31751
+[darwin] [386] skip
+
+cc -c -o syso/objTestImpl.syso syso/src/objTestImpl.c
+go build -ldflags='-linkmode=external' ./cmd/main.go
+
+-- syso/objTest.s --
+#include "textflag.h"
+
+TEXT ·ObjTest(SB), NOSPLIT, $0
+	// We do not actually execute this function in the test above, thus
+	// there is no stack frame setup here.
+	// We only care about Go build and/or link errors when referencing
+	// the objTestImpl symbol in the syso file.
+	JMP objTestImpl(SB)
+
+-- syso/pkg.go --
+package syso
+
+func ObjTest()
+
+-- syso/src/objTestImpl.c --
+void objTestImpl() { /* Empty */ }
+
+-- cmd/main.go --
+package main
+
+import "syso"
+
+func main() {
+	syso.ObjTest()
+}
diff --git a/libgo/go/cmd/go/testdata/script/list_ambiguous_path.txt b/libgo/go/cmd/go/testdata/script/list_ambiguous_path.txt
new file mode 100644
index 0000000..bdb7ffb
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/list_ambiguous_path.txt
@@ -0,0 +1,38 @@
+# Ensures that we can correctly list package patterns ending in '.go'.
+# See golang.org/issue/34653.
+
+# A single pattern for a package ending in '.go'.
+go list ./foo.go
+stdout '^test/foo.go$'
+
+# Multiple patterns for packages including one ending in '.go'.
+go list ./bar ./foo.go
+stdout '^test/bar$'
+stdout '^test/foo.go$'
+
+# A single pattern for a Go file.
+go list ./a.go
+stdout '^command-line-arguments$'
+
+# A single typo-ed pattern for a Go file. This should
+# treat the wrong pattern as if it were a package.
+! go list ./foo.go/b.go
+stderr 'package ./foo.go/b.go: cannot find package "."'
+
+# Multiple patterns for Go files with a typo. This should
+# treat the wrong pattern as if it were a non-existint file.
+! go list ./foo.go/a.go ./foo.go/b.go
+[plan9] stderr 'stat ./foo.go/b.go: ''./foo.go/b.go'' does not exist'
+[windows] stderr './foo.go/b.go: The system cannot find the file specified'
+[!plan9] [!windows] stderr './foo.go/b.go: no such file or directory'
+
+-- a.go --
+package main
+-- bar/a.go --
+package bar
+-- foo.go/a.go --
+package foo.go
+-- go.mod --
+module "test"
+
+go 1.13
diff --git a/libgo/go/cmd/go/testdata/script/list_constraints.txt b/libgo/go/cmd/go/testdata/script/list_constraints.txt
new file mode 100644
index 0000000..7115c36
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/list_constraints.txt
@@ -0,0 +1,86 @@
+# Check that files and their imports are not included in 'go list' output
+# when they are excluded by build constraints.
+
+# Linux and cgo files should be included when building in that configuration.
+env GOOS=linux
+env GOARCH=amd64
+env CGO_ENABLED=1
+go list -f '{{range .GoFiles}}{{.}} {{end}}'
+stdout '^cgotag.go empty.go suffix_linux.go tag.go $'
+go list -f '{{range .CgoFiles}}{{.}} {{end}}'
+stdout '^cgoimport.go $'
+go list -f '{{range .Imports}}{{.}} {{end}}'
+stdout '^C cgoimport cgotag suffix tag $'
+
+# Disabling cgo should exclude cgo files and their imports.
+env CGO_ENABLED=0
+go list -f '{{range .GoFiles}}{{.}} {{end}}'
+stdout 'empty.go suffix_linux.go tag.go'
+go list -f '{{range .CgoFiles}}{{.}} {{end}}'
+! stdout .
+go list -f '{{range .Imports}}{{.}} {{end}}'
+stdout '^suffix tag $'
+
+# Changing OS should exclude linux sources.
+env GOOS=darwin
+go list -f '{{range .GoFiles}}{{.}} {{end}}'
+stdout '^empty.go $'
+go list -f '{{range .Imports}}{{.}} {{end}}'
+stdout '^$'
+
+# Enabling a tag should include files that require it.
+go list -tags=extra -f '{{range .GoFiles}}{{.}} {{end}}'
+stdout '^empty.go extra.go $'
+go list -tags=extra -f '{{range .Imports}}{{.}} {{end}}'
+stdout '^extra $'
+
+# Packages that require a tag should not be listed unless the tag is on.
+! go list ./tagonly
+go list -tags=extra ./tagonly
+stdout m/tagonly
+
+-- go.mod --
+module m
+
+go 1.13
+
+-- empty.go --
+package p
+
+-- extra.go --
+// +build extra
+
+package p
+
+import _ "extra"
+
+-- suffix_linux.go --
+package p
+
+import _ "suffix"
+
+-- tag.go --
+// +build linux
+
+package p
+
+import _ "tag"
+
+-- cgotag.go --
+// +build cgo
+
+package p
+
+import _ "cgotag"
+
+-- cgoimport.go --
+package p
+
+import "C"
+
+import _ "cgoimport"
+
+-- tagonly/tagonly.go --
+// +build extra
+
+package tagonly
diff --git a/libgo/go/cmd/go/testdata/script/list_linkshared.txt b/libgo/go/cmd/go/testdata/script/list_linkshared.txt
new file mode 100644
index 0000000..baae1e2
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/list_linkshared.txt
@@ -0,0 +1,16 @@
+env GO111MODULE=on
+
+# golang.org/issue/35759: 'go list -linkshared'
+# panicked if invoked on a test-only package.
+
+[!buildmode:shared] skip
+
+go list -f '{{.ImportPath}}: {{.Target}} {{.Shlib}}' -linkshared .
+stdout '^example.com:  $'
+
+-- go.mod --
+module example.com
+
+go 1.14
+-- x.go --
+package x
diff --git a/libgo/go/cmd/go/testdata/script/list_parse_err.txt b/libgo/go/cmd/go/testdata/script/list_parse_err.txt
new file mode 100644
index 0000000..5aacaa8
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/list_parse_err.txt
@@ -0,0 +1,17 @@
+# 'go list' should report imports, even if some files have parse errors
+# before the import block.
+go list -e -f '{{range .Imports}}{{.}} {{end}}'
+stdout '^fmt '
+
+-- go.mod --
+module m
+
+go 1.13
+
+-- a.go --
+package a
+
+import "fmt"
+
+-- b.go --
+// no package statement
diff --git a/libgo/go/cmd/go/testdata/script/list_split_main.txt b/libgo/go/cmd/go/testdata/script/list_split_main.txt
new file mode 100644
index 0000000..74e7d5d
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/list_split_main.txt
@@ -0,0 +1,25 @@
+# This test checks that a "main" package with an external test package
+# is recompiled only once.
+# Verifies golang.org/issue/34321.
+
+env GO111MODULE=off
+
+go list -e -test -deps -f '{{if not .Standard}}{{.ImportPath}}{{end}}' pkg
+cmp stdout want
+
+-- $GOPATH/src/pkg/pkg.go --
+package main
+
+func main() {}
+
+-- $GOPATH/src/pkg/pkg_test.go --
+package main
+
+import "testing"
+
+func Test(t *testing.T) {}
+
+-- want --
+pkg
+pkg [pkg.test]
+pkg.test
diff --git a/libgo/go/cmd/go/testdata/script/list_tags.txt b/libgo/go/cmd/go/testdata/script/list_tags.txt
deleted file mode 100644
index 49069bd..0000000
--- a/libgo/go/cmd/go/testdata/script/list_tags.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-env GO111MODULE=off
-
-# go list supports -tags
-go list -tags=thetag ./my...
-stdout mypkg
-
--- mypkg/x.go --
-// +build thetag
-
-package mypkg
diff --git a/libgo/go/cmd/go/testdata/script/mod_ambiguous_import.txt b/libgo/go/cmd/go/testdata/script/mod_ambiguous_import.txt
new file mode 100644
index 0000000..61e632a
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_ambiguous_import.txt
@@ -0,0 +1,49 @@
+env GO111MODULE=on
+
+cd $WORK
+
+# An import provided by two different modules should be flagged as an error.
+! go build ./importx
+stderr '^importx[/\\]importx.go:2:8: ambiguous import: found package example.com/a/x in multiple modules:\n\texample.com/a v0.1.0 \('$WORK'[/\\]a[/\\]x\)\n\texample.com/a/x v0.1.0 \('$WORK'[/\\]ax\)$'
+
+# However, it should not be an error if that import is unused.
+go build ./importy
+
+# An import provided by both the main module and the vendor directory
+# should be flagged as an error only when -mod=vendor is set.
+# TODO: This error message is a bit redundant.
+mkdir vendor/example.com/m/importy
+cp $WORK/importy/importy.go vendor/example.com/m/importy/importy.go
+go build example.com/m/importy
+! go build -mod=vendor example.com/m/importy
+stderr '^can.t load package: package example.com/m/importy: ambiguous import: found package example.com/m/importy in multiple directories:\n\t'$WORK'[/\\]importy\n\t'$WORK'[/\\]vendor[/\\]example.com[/\\]m[/\\]importy$'
+
+-- $WORK/go.mod --
+module example.com/m
+go 1.13
+require (
+	example.com/a v0.1.0
+	example.com/a/x v0.1.0
+)
+replace (
+	example.com/a v0.1.0 => ./a
+	example.com/a/x v0.1.0 => ./ax
+)
+-- $WORK/importx/importx.go --
+package importx
+import _ "example.com/a/x"
+-- $WORK/importy/importy.go --
+package importy
+import _ "example.com/a/y"
+-- $WORK/a/go.mod --
+module example.com/a
+go 1.14
+-- $WORK/a/x/x.go --
+package x
+-- $WORK/a/y/y.go --
+package y
+-- $WORK/ax/go.mod --
+module example.com/a/x
+go 1.14
+-- $WORK/ax/x.go --
+package x
diff --git a/libgo/go/cmd/go/testdata/script/mod_auth.txt b/libgo/go/cmd/go/testdata/script/mod_auth.txt
index fe1d657..5bcbcd1 100644
--- a/libgo/go/cmd/go/testdata/script/mod_auth.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_auth.txt
@@ -8,6 +8,8 @@
 # basic auth should fail.
 env NETRC=$WORK/empty
 ! go list all
+stderr '^\tserver response: ACCESS DENIED, buddy$'
+stderr '^\tserver response: File\? What file\?$'
 
 # With credentials from a netrc file, it should succeed.
 env NETRC=$WORK/netrc
diff --git a/libgo/go/cmd/go/testdata/script/mod_bad_domain.txt b/libgo/go/cmd/go/testdata/script/mod_bad_domain.txt
index c9fd044..ec0d474 100644
--- a/libgo/go/cmd/go/testdata/script/mod_bad_domain.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_bad_domain.txt
@@ -2,10 +2,16 @@
 
 # explicit get should report errors about bad names
 ! go get appengine
-stderr 'malformed module path "appengine": missing dot in first path element'
+stderr '^go get appengine: package appengine is not in GOROOT \(.*\)$'
 ! go get x/y.z
 stderr 'malformed module path "x/y.z": missing dot in first path element'
 
+# 'go list -m' should report errors about module names, never GOROOT.
+! go list -m -versions appengine
+stderr 'malformed module path "appengine": missing dot in first path element'
+! go list -m -versions x/y.z
+stderr 'malformed module path "x/y.z": missing dot in first path element'
+
 # build should report all unsatisfied imports,
 # but should be more definitive about non-module import paths
 ! go build ./useappengine
diff --git a/libgo/go/cmd/go/testdata/script/mod_build_info_err.txt b/libgo/go/cmd/go/testdata/script/mod_build_info_err.txt
new file mode 100644
index 0000000..87a099b
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_build_info_err.txt
@@ -0,0 +1,22 @@
+# This test verifies that line numbers are included in module import errors.
+# Verifies golang.org/issue/34393.
+
+go list -e -deps -f '{{with .Error}}{{.Pos}}: {{.Err}}{{end}}' ./main
+stdout 'bad[/\\]bad.go:3:8: malformed module path "🐧.example.com/string": invalid char ''🐧'''
+
+-- go.mod --
+module m
+
+go 1.13
+
+-- main/main.go --
+package main
+
+import _ "m/bad"
+
+func main() {}
+
+-- bad/bad.go --
+package bad
+
+import _ "🐧.example.com/string"
diff --git a/libgo/go/cmd/go/testdata/script/mod_cache_rw.txt b/libgo/go/cmd/go/testdata/script/mod_cache_rw.txt
new file mode 100644
index 0000000..a541076
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_cache_rw.txt
@@ -0,0 +1,49 @@
+# Regression test for golang.org/issue/31481.
+
+env GO111MODULE=on
+
+# golang.org/issue/31481: an explicit flag should make directories in the module
+# cache writable in order to work around the historical inability of 'rm -rf' to
+# forcibly remove files in unwritable directories.
+go get -modcacherw -d rsc.io/quote@v1.5.2
+cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
+
+# After adding an extraneous file, 'go mod verify' should fail.
+! go mod verify
+
+# However, files within those directories should still be read-only to avoid
+# accidental mutations.
+[!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod
+
+# If all 'go' commands ran with the flag, the system's 'rm' binary
+# should be able to remove the module cache if the '-rf' flags are set.
+[!windows] [exec:rm] exec rm -rf $GOPATH/pkg/mod
+[!windows] [!exec:rm] go clean -modcache
+[windows] [exec:cmd.exe] exec cmd.exe /c rmdir /s /q $GOPATH\pkg\mod
+[windows] [!exec:cmd.exe] go clean -modcache
+! exists $GOPATH/pkg/mod
+
+# The directories in the module cache should by default be unwritable,
+# so that tests and tools will not accidentally add extraneous files to them.
+# Windows does not respect FILE_ATTRIBUTE_READONLY on directories, according
+# to MSDN, so there we disable testing whether the directory itself is
+# unwritable.
+go get -d rsc.io/quote@latest
+[!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod
+[!windows] [!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
+! exists $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
+
+
+# Repeat part of the test with 'go mod download' instead of 'go get' to verify
+# -modcacherw is supported on 'go mod' subcommands.
+go clean -modcache
+go mod download -modcacherw rsc.io/quote
+cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
+! go mod verify
+[!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod
+
+
+-- $WORK/extraneous.txt --
+module oops
+-- go.mod --
+module golang.org/issue/31481
diff --git a/libgo/go/cmd/go/testdata/script/mod_convert_tsv_insecure.txt b/libgo/go/cmd/go/testdata/script/mod_convert_tsv_insecure.txt
new file mode 100644
index 0000000..ddb0c08
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_convert_tsv_insecure.txt
@@ -0,0 +1,27 @@
+env GO111MODULE=on
+
+[!net] skip
+[!exec:git] skip
+
+# secure fetch should report insecure warning
+cd $WORK/test
+go mod init
+stderr 'redirected .* to insecure URL'
+
+# insecure fetch should not
+env GOINSECURE=*.golang.org
+rm go.mod
+go mod init
+! stderr 'redirected .* to insecure URL'
+
+# insecure fetch invalid path should report insecure warning
+env GOINSECURE=foo.golang.org
+rm go.mod
+go mod init
+stderr 'redirected .* to insecure URL'
+
+-- $WORK/test/dependencies.tsv --
+vcs-test.golang.org/insecure/go/insecure	git	6fecd21f7c0c	2019-09-04T18:39:48Z 
+
+-- $WORK/test/x.go --
+package x // import "m"
diff --git a/libgo/go/cmd/go/testdata/script/mod_convert_vendor_json.txt b/libgo/go/cmd/go/testdata/script/mod_convert_vendor_json.txt
index 47d111d..df6db36 100644
--- a/libgo/go/cmd/go/testdata/script/mod_convert_vendor_json.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_convert_vendor_json.txt
@@ -10,7 +10,7 @@
 # The command we suggested should succeed.
 cd ..
 go mod init
-go list -m all
+go list -m
 stdout '^m$'
 
 -- $WORK/test/vendor/vendor.json --
diff --git a/libgo/go/cmd/go/testdata/script/mod_convert_vendor_manifest.txt b/libgo/go/cmd/go/testdata/script/mod_convert_vendor_manifest.txt
index 68edb9d..8b6a141 100644
--- a/libgo/go/cmd/go/testdata/script/mod_convert_vendor_manifest.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_convert_vendor_manifest.txt
@@ -10,7 +10,7 @@
 # The command we suggested should succeed.
 cd ..
 go mod init
-go list -m all
+go list -m
 stdout '^m$'
 
 -- $WORK/test/vendor/manifest --
diff --git a/libgo/go/cmd/go/testdata/script/mod_doc.txt b/libgo/go/cmd/go/testdata/script/mod_doc.txt
index d7aa553..aac3db0 100644
--- a/libgo/go/cmd/go/testdata/script/mod_doc.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_doc.txt
@@ -36,6 +36,35 @@
 ! stdout 'Package quote is located in a GOPATH workspace.'
 stdout 'Package quote collects pithy sayings.'
 
+# Check that a sensible error message is printed when a package is not found.
+env GOPROXY=off
+! go doc example.com/hello
+stderr '^doc: cannot find module providing package example.com/hello: module lookup disabled by GOPROXY=off$'
+
+# When in a module with a vendor directory, doc should use the vendored copies
+# of the packages. 'std' and 'cmd' are convenient examples of such modules.
+#
+# When in those modules, the "// import" comment should refer to the same import
+# path used in source code, not to the absolute path relative to GOROOT.
+
+cd $GOROOT/src
+go doc cryptobyte
+stdout '// import "golang.org/x/crypto/cryptobyte"'
+
+cd $GOROOT/src/cmd/go
+go doc modfile
+stdout '// import "golang.org/x/mod/modfile"'
+
+# When outside of the 'std' module, its vendored packages
+# remain accessible using the 'vendor/' prefix, but report
+# the correct "// import" comment as used within std.
+cd $GOPATH
+go doc vendor/golang.org/x/crypto/cryptobyte
+stdout '// import "vendor/golang.org/x/crypto/cryptobyte"'
+
+go doc cmd/vendor/golang.org/x/mod/modfile
+stdout '// import "cmd/vendor/golang.org/x/mod/modfile"'
+
 -- go.mod --
 module x
 require rsc.io/quote v1.5.2
diff --git a/libgo/go/cmd/go/testdata/script/mod_download.txt b/libgo/go/cmd/go/testdata/script/mod_download.txt
index 9eb3140..3573928 100644
--- a/libgo/go/cmd/go/testdata/script/mod_download.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_download.txt
@@ -4,6 +4,7 @@
 # download with version should print nothing
 go mod download rsc.io/quote@v1.5.0
 ! stdout .
+! stderr .
 
 exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.0.info
 exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.0.mod
@@ -17,7 +18,6 @@
 stdout '"Error": ".*this.domain.is.invalid.*"'
 
 # download -json with version should print JSON
-# and download the .info file for the 'latest' version.
 go mod download -json 'rsc.io/quote@<=v1.5.0'
 stdout '^\t"Path": "rsc.io/quote"'
 stdout '^\t"Version": "v1.5.0"'
@@ -28,14 +28,13 @@
 stdout '^\t"GoModSum": "h1:LzX7hefJvL54yjefDEDHNONDjII0t9xZLPXsUe\+TKr0="'
 ! stdout '"Error"'
 
-exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.2.info
-
 # download queries above should not have added to go.mod.
 go list -m all
 ! stdout rsc.io
 
 # add to go.mod so we can test non-query downloads
 go mod edit -require rsc.io/quote@v1.5.2
+! exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.2.info
 ! exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.2.mod
 ! exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.2.zip
 
@@ -95,6 +94,12 @@
 ! go mod download -json bad/path
 stdout '^\t"Error": "module bad/path: not a known dependency"'
 
+# download main module returns an error
+go mod download m
+stderr '^go mod download: skipping argument m that resolves to the main module\n'
+go mod download m@latest
+stderr '^go mod download: skipping argument m@latest that resolves to the main module\n'
+
 # allow go mod download without go.mod
 env GO111MODULE=auto
 rm go.mod
@@ -102,5 +107,11 @@
 go mod download rsc.io/quote@v1.2.1
 exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.2.1.zip
 
+# download -x with version should print
+# the underlying commands such as contacting GOPROXY.
+go mod download -x rsc.io/quote@v1.0.0
+! stdout .
+stderr 'get '$GOPROXY
+
 -- go.mod --
 module m
diff --git a/libgo/go/cmd/go/testdata/script/mod_download_json.txt b/libgo/go/cmd/go/testdata/script/mod_download_json.txt
new file mode 100644
index 0000000..01c35dd
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_download_json.txt
@@ -0,0 +1,10 @@
+env GO111MODULE=on
+env GOPROXY=$GOPROXY/quiet
+env GOSUMDB=$sumdb' '$proxy/sumdb-wrong
+
+# download -json with version should print JSON on sumdb failure
+! go mod download -json 'rsc.io/quote@<=v1.5.0'
+stdout '"Error": ".*verifying module'
+
+-- go.mod --
+module m
diff --git a/libgo/go/cmd/go/testdata/script/mod_download_latest.txt b/libgo/go/cmd/go/testdata/script/mod_download_latest.txt
deleted file mode 100644
index 60d860e..0000000
--- a/libgo/go/cmd/go/testdata/script/mod_download_latest.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-env GO111MODULE=on
-
-# If the module is the latest version of itself,
-# the Latest field should be set.
-go mod download -json rsc.io/quote@v1.5.2
-stdout '"Latest":\s*true'
-
-# If the module is older than latest, the field should be unset.
-go mod download -json rsc.io/quote@v1.5.1
-! stdout '"Latest":'
-
-# If the module is newer than "latest", the field should be unset...
-go mod download -json rsc.io/quote@v1.5.3-pre1
-! stdout '"Latest":'
-
-# ...even if that version is also what is required by the main module.
-go mod init example.com
-go mod edit -require rsc.io/quote@v1.5.3-pre1
-go mod download -json rsc.io/quote@v1.5.3-pre1
-! stdout '"Latest":'
diff --git a/libgo/go/cmd/go/testdata/script/mod_download_replace_file.txt b/libgo/go/cmd/go/testdata/script/mod_download_replace_file.txt
new file mode 100644
index 0000000..f6ab4fe
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_download_replace_file.txt
@@ -0,0 +1,16 @@
+# This test checks that 'go mod download' produces no output for
+# the main module (when specified implicitly) and for a module replaced
+# with a file path.
+# Verifies golang.org/issue/35505.
+go mod download -json all
+cmp stdout no-output
+
+-- go.mod --
+module example.com/a
+
+require example.com/b v1.0.0
+
+replace example.com/b => ./local/b
+-- local/b/go.mod --
+module example.com/b
+-- no-output --
diff --git a/libgo/go/cmd/go/testdata/script/mod_edit.txt b/libgo/go/cmd/go/testdata/script/mod_edit.txt
index 42007b1..898d852 100644
--- a/libgo/go/cmd/go/testdata/script/mod_edit.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_edit.txt
@@ -52,6 +52,12 @@
 go mod edit -module x.x/y/z
 cmpenv go.mod go.mod.edit
 
+# golang.org/issue/30513: don't require go-gettable module paths.
+cd $WORK/local
+go mod init foo
+go mod edit -module local-only -require=other-local@v1.0.0 -replace other-local@v1.0.0=./other
+cmpenv go.mod go.mod.edit
+
 -- x.go --
 package x
 
@@ -159,6 +165,14 @@
 replace x.1 => y.1/v2 v2.3.6
 
 require x.3 v1.99.0
+-- $WORK/local/go.mod.edit --
+module local-only
+
+go $goversion
+
+require other-local v1.0.0
+
+replace other-local v1.0.0 => ./other
 -- $WORK/go.mod.badfmt --
 module     x.x/y/z
 
diff --git a/libgo/go/cmd/go/testdata/script/mod_edit_go.txt b/libgo/go/cmd/go/testdata/script/mod_edit_go.txt
index 4285102..0f4e093 100644
--- a/libgo/go/cmd/go/testdata/script/mod_edit_go.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_edit_go.txt
@@ -1,6 +1,6 @@
 # Test support for go mod -edit to set language version.
 
-[gccgo] stop
+[gccgo] skip
 
 env GO111MODULE=on
 ! go build
diff --git a/libgo/go/cmd/go/testdata/script/mod_empty_err.txt b/libgo/go/cmd/go/testdata/script/mod_empty_err.txt
new file mode 100644
index 0000000..729f848
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_empty_err.txt
@@ -0,0 +1,36 @@
+# This test checks error messages for non-existant packages in module mode.
+# Veries golang.org/issue/35414
+env GO111MODULE=on
+cd $WORK
+
+go list -e -f {{.Error}} .
+stdout 'package \.: no Go files in \$WORK'
+
+go list -e -f {{.Error}} ./empty
+stdout 'package \./empty: no Go files in \$WORK[/\\]empty'
+
+go list -e -f {{.Error}} ./exclude
+stdout 'package \./exclude: build constraints exclude all Go files in \$WORK[/\\]exclude'
+
+go list -e -f {{.Error}} ./missing
+stdout 'package \./missing: cannot find package "." in:\s*\$WORK[/\\]missing'
+
+# use 'go build -n' because 'go list' reports no error.
+! go build -n ./testonly
+stderr 'example.com/m/testonly: no non-test Go files in \$WORK[/\\]testonly'
+
+-- $WORK/go.mod --
+module example.com/m
+
+go 1.14
+
+-- $WORK/empty/empty.txt --
+-- $WORK/exclude/exclude.go --
+// +build exclude
+
+package exclude
+-- $WORK/testonly/testonly_test.go --
+package testonly_test
+-- $WORK/excluded-stdout --
+package ./excluded: cannot find package "." in:
+	$WORK/excluded
diff --git a/libgo/go/cmd/go/testdata/script/mod_fs_patterns.txt b/libgo/go/cmd/go/testdata/script/mod_fs_patterns.txt
index fd7de13..4911fbb 100644
--- a/libgo/go/cmd/go/testdata/script/mod_fs_patterns.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_fs_patterns.txt
@@ -1,7 +1,6 @@
-# File system pattern searches should skip sub-modules and vendor directories.
-
 env GO111MODULE=on
 
+# File system pattern searches should skip sub-modules and vendor directories.
 cd x
 
 # all packages
@@ -40,6 +39,24 @@
 ! stderr 'import lookup disabled'
 stderr 'can.t load package: package ./go.mod: cannot find package'
 
+
+# File system paths and patterns should allow the '@' character.
+cd ../@at
+go list $PWD
+stdout '^at$'
+go list $PWD/...
+stdout '^at$'
+
+# The '@' character is not allowed in directory paths that are part of
+# a package path.
+cd ../badat/bad@
+! go list .
+stderr 'directory . outside available modules'
+! go list $PWD
+stderr 'directory . outside available modules'
+! go list $PWD/...
+stderr 'directory . outside available modules'
+
 -- x/go.mod --
 module m
 
@@ -64,3 +81,17 @@
 
 -- x/y/z/w/w.go --
 package w
+
+-- @at/go.mod --
+module at
+
+go 1.14
+-- @at/at.go --
+package at
+
+-- badat/go.mod --
+module badat
+
+go 1.14
+-- badat/bad@/bad.go --
+package bad
diff --git a/libgo/go/cmd/go/testdata/script/mod_get_direct.txt b/libgo/go/cmd/go/testdata/script/mod_get_direct.txt
new file mode 100644
index 0000000..42ccbcd
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_get_direct.txt
@@ -0,0 +1,20 @@
+# Regression test for golang.org/issue/34092: with an empty module cache,
+# 'GOPROXY=direct go get golang.org/x/tools/gopls@master' did not correctly
+# resolve the pseudo-version for its dependency on golang.org/x/tools.
+
+[short] skip
+[!net] skip
+[!exec:git] skip
+
+env GO111MODULE=on
+env GOPROXY=direct
+env GOSUMDB=off
+
+go list -m cloud.google.com/go@master
+! stdout 'v0.0.0-'
+
+-- go.mod --
+module example.com
+
+go 1.14
+-- go.sum --
diff --git a/libgo/go/cmd/go/testdata/script/mod_get_insecure_redirect.txt b/libgo/go/cmd/go/testdata/script/mod_get_insecure_redirect.txt
new file mode 100644
index 0000000..3755f17
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_get_insecure_redirect.txt
@@ -0,0 +1,34 @@
+# golang.org/issue/29591: 'go get' was following plain-HTTP redirects even without -insecure.
+
+[!net] skip
+[!exec:git] skip
+
+env GO111MODULE=on
+env GOPROXY=direct
+env GOSUMDB=off
+
+! go get -d vcs-test.golang.org/insecure/go/insecure
+stderr 'redirected .* to insecure URL'
+
+go get -d -insecure vcs-test.golang.org/insecure/go/insecure
+
+# insecure host
+env GOINSECURE=vcs-test.golang.org
+go clean -modcache
+go get -d vcs-test.golang.org/insecure/go/insecure
+
+# insecure glob host
+env GOINSECURE=*.golang.org
+go clean -modcache
+go get -d vcs-test.golang.org/insecure/go/insecure
+
+# insecure multiple host
+env GOINSECURE=somewhere-else.com,*.golang.org
+go clean -modcache
+go get -d vcs-test.golang.org/insecure/go/insecure
+
+# different insecure host does not fetch
+env GOINSECURE=somewhere-else.com
+go clean -modcache
+! go get -d vcs-test.golang.org/insecure/go/insecure
+stderr 'redirected .* to insecure URL'
diff --git a/libgo/go/cmd/go/testdata/script/mod_get_major.txt b/libgo/go/cmd/go/testdata/script/mod_get_major.txt
new file mode 100644
index 0000000..367ede9
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_get_major.txt
@@ -0,0 +1,23 @@
+[!net] skip
+[!exec:git] skip
+
+env GO111MODULE=on
+env GOPROXY=direct
+env GOSUMDB=off
+
+# golang.org/issue/34383: if a module path ends in a major-version suffix,
+# ensure that 'direct' mode can resolve the package to a module.
+
+go get -d vcs-test.golang.org/git/v3pkg.git/v3@v3.0.0
+
+go list -m vcs-test.golang.org/git/v3pkg.git/v3
+stdout '^vcs-test.golang.org/git/v3pkg.git/v3 v3.0.0$'
+
+go get -d vcs-test.golang.org/git/empty-v2-without-v1.git/v2@v2.0.0
+
+go list -m vcs-test.golang.org/git/empty-v2-without-v1.git/v2
+stdout '^vcs-test.golang.org/git/empty-v2-without-v1.git/v2 v2.0.0$'
+
+-- go.mod --
+module example.com
+go 1.13
diff --git a/libgo/go/cmd/go/testdata/script/mod_get_newcycle.txt b/libgo/go/cmd/go/testdata/script/mod_get_newcycle.txt
index b1838f8..5c197bb 100644
--- a/libgo/go/cmd/go/testdata/script/mod_get_newcycle.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_get_newcycle.txt
@@ -11,6 +11,5 @@
 cmp stderr stderr-expected
 
 -- stderr-expected --
-go: finding example.com/newcycle v1.0.0
 go get: inconsistent versions:
 	example.com/newcycle/a@v1.0.0 requires example.com/newcycle/a@v1.0.1 (not example.com/newcycle/a@v1.0.0)
diff --git a/libgo/go/cmd/go/testdata/script/mod_get_patterns.txt b/libgo/go/cmd/go/testdata/script/mod_get_patterns.txt
index bfab700..8adc4b0 100644
--- a/libgo/go/cmd/go/testdata/script/mod_get_patterns.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_get_patterns.txt
@@ -10,11 +10,11 @@
 
 cp go.mod.orig go.mod
 ! go get -d rsc.io/quote/x...
-stderr 'go get rsc.io/quote/x...: module rsc.io/quote@upgrade \(v1.5.2\) found, but does not contain packages matching rsc.io/quote/x...'
+stderr 'go get rsc.io/quote/x...: module rsc.io/quote@upgrade found \(v1.5.2\), but does not contain packages matching rsc.io/quote/x...'
 ! grep 'require rsc.io/quote' go.mod
 
 ! go get -d rsc.io/quote/x/...
-stderr 'go get rsc.io/quote/x/...: module rsc.io/quote@upgrade \(v1.5.2\) found, but does not contain packages matching rsc.io/quote/x/...'
+stderr 'go get rsc.io/quote/x/...: module rsc.io/quote@upgrade found \(v1.5.2\), but does not contain packages matching rsc.io/quote/x/...'
 ! grep 'require rsc.io/quote' go.mod
 
 # If a pattern matches no packages within a module, the module should not
diff --git a/libgo/go/cmd/go/testdata/script/mod_get_svn.txt b/libgo/go/cmd/go/testdata/script/mod_get_svn.txt
index cd19d99..3817fce 100644
--- a/libgo/go/cmd/go/testdata/script/mod_get_svn.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_get_svn.txt
@@ -1,17 +1,27 @@
 [!net] skip
 [!exec:svn] skip
 
+# 'go get' will fall back to svn+ssh once svn fails over protocols like https.
+# If vcs-test.golang.org isn't in the user's known_hosts file, this will result
+# in an ssh prompt, which will stop 'go test' entirely
+#
+# Unfortunately, there isn't a way to globally disable host checking for ssh,
+# without modifying the real system's or user's configs. Changing $HOME won't
+# affect ssh either, as it ignores the environment variable entirely.
+#
+# However, a useful trick is pointing SVN_SSH to a program that doesn't exist,
+# resulting in svn skipping ssh entirely. Alternatives like
+# SVN_SSH="ssh -o StrictHostKeyChecking=no" didn't avoid the prompt.
+env SVN_SSH="svn_do_not_use_ssh"
+
 env GO111MODULE=on
 env GOPROXY=direct
 env GOSUMDB=off
 
-# Attempting to get a module zip using svn should fail with a reasonable
-# message instead of a panic.
-# TODO(golang.org/issue/26092): Really, it shouldn't fail at all.
-! go get -d vcs-test.golang.org/svn/hello.svn
-stderr 'ReadZip not implemented for svn'
-! go install .
-stderr 'ReadZip not implemented for svn'
+# Attempting to get a module zip using svn should succeed.
+go get vcs-test.golang.org/svn/hello.svn@000000000001
+exists $GOPATH/pkg/mod/cache/download/vcs-test.golang.org/svn/hello.svn/@v/v0.0.0-20170922011245-000000000001.zip
+exists $GOPATH/bin/hello.svn$GOEXE
 
 # Attempting to get a nonexistent module using svn should fail with a
 # reasonable message instead of a panic.
@@ -21,7 +31,6 @@
 
 -- go.mod --
 module golang/go/issues/28943/main
--- main.go --
-package main
-import _ "vcs-test.golang.org/svn/hello.svn"
-func main() {}
+-- go.sum --
+vcs-test.golang.org/svn/hello.svn v0.0.0-20170922011245-000000000001 h1:rZjvboXMfQICKXdhx/QHqJ2Y/AQsJVrXnwGqwcTxQiw=
+vcs-test.golang.org/svn/hello.svn v0.0.0-20170922011245-000000000001/go.mod h1:0memnh/BRLuxiK2zF4rvUgz6ts/fhhB28l3ULFWPusc=
diff --git a/libgo/go/cmd/go/testdata/script/mod_get_trailing_slash.txt b/libgo/go/cmd/go/testdata/script/mod_get_trailing_slash.txt
new file mode 100644
index 0000000..7b5d90c
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_get_trailing_slash.txt
@@ -0,0 +1,30 @@
+# go list should succeed to load a package ending with ".go" if the path does
+# not correspond to an existing local file. Listing a pattern ending with
+# ".go/" should try to list a package regardless of whether a file exists at the
+# path without the suffixed "/" or not.
+go list example.com/dotgo.go
+stdout ^example.com/dotgo.go$
+go list example.com/dotgo.go/
+stdout ^example.com/dotgo.go$
+
+# go get -d should succeed in either case, with or without a version.
+# Arguments are interpreted as packages or package patterns with versions,
+# not source files.
+go get -d example.com/dotgo.go
+go get -d example.com/dotgo.go/
+go get -d example.com/dotgo.go@v1.0.0
+go get -d example.com/dotgo.go/@v1.0.0
+
+# go get (without -d) should also succeed in either case.
+[short] skip
+go get example.com/dotgo.go
+go get example.com/dotgo.go/
+go get example.com/dotgo.go@v1.0.0
+go get example.com/dotgo.go/@v1.0.0
+
+-- go.mod --
+module m
+
+go 1.13
+
+require example.com/dotgo.go v1.0.0
diff --git a/libgo/go/cmd/go/testdata/script/mod_getmode_vendor.txt b/libgo/go/cmd/go/testdata/script/mod_getmode_vendor.txt
index 7e1f6aa..d3df207 100644
--- a/libgo/go/cmd/go/testdata/script/mod_getmode_vendor.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_getmode_vendor.txt
@@ -6,14 +6,21 @@
 env GOPROXY=file:///nonexist
 
 go list -mod=vendor
-go list -mod=vendor -m -f '{{.Path}} {{.Version}} {{.Dir}}' all
+go list -mod=vendor -f '{{with .Module}}{{.Path}} {{.Version}}{{end}} {{.Dir}}' all
 stdout '^rsc.io/quote v1.5.1 .*vendor[\\/]rsc.io[\\/]quote$'
-stdout '^golang.org/x/text v0.0.0.* .*vendor[\\/]golang.org[\\/]x[\\/]text$'
+stdout '^golang.org/x/text v0.0.0.* .*vendor[\\/]golang.org[\\/]x[\\/]text[\\/]language$'
 
 ! go list -mod=vendor -m rsc.io/quote@latest
-stderr 'module lookup disabled by -mod=vendor'
+stderr 'go list -m: rsc.io/quote@latest: cannot query module due to -mod=vendor'
 ! go get -mod=vendor -u
-stderr 'go get: disabled by -mod=vendor'
+stderr 'flag provided but not defined: -mod'
+
+# Since we don't have a complete module graph, 'go list -m' queries
+# that require the complete graph should fail with a useful error.
+! go list -mod=vendor -m all
+stderr 'go list -m: can''t compute ''all'' using the vendor directory\n\t\(Use -mod=mod or -mod=readonly to bypass.\)'
+! go list -mod=vendor -m ...
+stderr 'go list -m: can''t match module patterns using the vendor directory\n\t\(Use -mod=mod or -mod=readonly to bypass.\)'
 
 -- go.mod --
 module x
diff --git a/libgo/go/cmd/go/testdata/script/mod_getx.txt b/libgo/go/cmd/go/testdata/script/mod_getx.txt
new file mode 100644
index 0000000..ccb8d13
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_getx.txt
@@ -0,0 +1,14 @@
+[short] skip
+[!net] skip
+[!exec:git] skip
+
+env GO111MODULE=on
+env GOPROXY=direct
+env GOSUMDB=off
+
+# 'go get -x' should log URLs with an HTTP or HTTPS scheme.
+# A bug had caused us to log schemeless URLs instead.
+go get -x -d golang.org/x/text@v0.1.0
+stderr '^# get https://golang.org/x/text\?go-get=1$'
+stderr '^# get https://golang.org/x/text\?go-get=1: 200 OK \([0-9.]+s\)$'
+! stderr '^# get //.*'
diff --git a/libgo/go/cmd/go/testdata/script/mod_go_version_mixed.txt b/libgo/go/cmd/go/testdata/script/mod_go_version_mixed.txt
new file mode 100644
index 0000000..d6216ae
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_go_version_mixed.txt
@@ -0,0 +1,43 @@
+# Test that dependencies can use Go language features newer than the
+# Go version specified by the main module.
+
+env GO111MODULE=on
+
+go build
+
+-- go.mod --
+module m
+go 1.12
+require (
+	sub.1 v1.0.0
+)
+replace (
+	sub.1 => ./sub
+)
+
+-- x.go --
+package x
+
+import "sub.1"
+
+func F() { sub.F(0, 0) }
+
+var A sub.Alias
+var D sub.Defined
+
+-- sub/go.mod --
+module m
+go 1.14
+
+-- sub/sub.go --
+package sub
+
+// signed shift counts added in Go 1.13
+func F(l, r int) int { return l << r }
+
+type m1 interface { M() }
+type m2 interface { M() }
+
+// overlapping interfaces added in Go 1.14
+type Alias = interface { m1; m2; M() }
+type Defined interface { m1; m2; M() }
diff --git a/libgo/go/cmd/go/testdata/script/mod_goroot_errors.txt b/libgo/go/cmd/go/testdata/script/mod_goroot_errors.txt
new file mode 100644
index 0000000..2e08ae0
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_goroot_errors.txt
@@ -0,0 +1,55 @@
+env GO111MODULE=on
+
+[gccgo] skip
+
+# Regression test for https://golang.org/issue/34769.
+# Missing standard-library imports should refer to GOROOT rather than
+# complaining about a malformed module path.
+# This is especially important when GOROOT is set incorrectly,
+# since such an error will occur for every package in std.
+
+# Building a nonexistent std package directly should fail usefully.
+
+! go build -mod=readonly nonexist
+! stderr 'import lookup disabled'
+! stderr 'missing dot'
+stderr '^can''t load package: package nonexist is not in GOROOT \('$GOROOT'[/\\]src[/\\]nonexist\)$'
+
+! go build nonexist
+! stderr 'import lookup disabled'
+! stderr 'missing dot'
+stderr '^can''t load package: package nonexist is not in GOROOT \('$GOROOT'[/\\]src[/\\]nonexist\)$'
+
+# Building a nonexistent std package indirectly should also fail usefully.
+
+! go build -mod=readonly ./importnonexist
+! stderr 'import lookup disabled'
+! stderr 'missing dot'
+stderr '^importnonexist[/\\]x.go:2:8: package nonexist is not in GOROOT \('$GOROOT'[/\\]src[/\\]nonexist\)$'
+
+! go build ./importnonexist
+! stderr 'import lookup disabled'
+! stderr 'missing dot'
+stderr '^importnonexist[/\\]x.go:2:8: package nonexist is not in GOROOT \('$GOROOT'[/\\]src[/\\]nonexist\)$'
+
+# Building an *actual* std package should fail if GOROOT is set to something bogus.
+
+[!short] go build ./importjson  # Prove that it works when GOROOT is valid.
+
+env GOROOT=$WORK/not-a-valid-goroot
+! go build ./importjson
+! stderr 'import lookup disabled'
+! stderr 'missing dot'
+stderr 'importjson[/\\]x.go:2:8: package encoding/json is not in GOROOT \('$WORK'[/\\]not-a-valid-goroot[/\\]src[/\\]encoding[/\\]json\)$'
+
+-- go.mod --
+module example.com
+go 1.14
+-- importnonexist/x.go --
+package importnonexist
+import _ "nonexist"
+-- importjson/x.go --
+package importjson
+import _ "encoding/json"
+-- $WORK/not-a-valid-goroot/README --
+This directory is not a valid GOROOT.
diff --git a/libgo/go/cmd/go/testdata/script/mod_in_testdata_dir.txt b/libgo/go/cmd/go/testdata/script/mod_in_testdata_dir.txt
new file mode 100644
index 0000000..f582569
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_in_testdata_dir.txt
@@ -0,0 +1,45 @@
+# Regression test for golang.org/issue/28481:
+# 'mod tidy' removed dependencies if the module root was
+# within a directory named 'testdata' or '_foo'.
+
+env GO111MODULE=on
+
+# A module should be allowed in a directory named testdata.
+cd $WORK/testdata
+go mod init testdata.tld/foo
+
+# Building a package within that module should resolve its dependencies.
+go build
+grep 'rsc.io/quote' go.mod
+
+# Tidying the module should preserve those dependencies.
+go mod tidy
+grep 'rsc.io/quote' go.mod
+
+[short] stop
+
+# Vendoring the module's dependencies should work too.
+go mod vendor
+exists vendor/rsc.io/quote
+
+# The same should work in directories with names starting with underscores.
+cd $WORK/_ignored
+go mod init testdata.tld/foo
+
+go build
+grep 'rsc.io/quote' go.mod
+
+go mod tidy
+grep 'rsc.io/quote' go.mod
+
+go mod vendor
+exists vendor/rsc.io/quote
+
+-- $WORK/testdata/main.go --
+package foo
+
+import _ "rsc.io/quote"
+-- $WORK/_ignored/main.go --
+package foo
+
+import _ "rsc.io/quote"
diff --git a/libgo/go/cmd/go/testdata/script/mod_internal.txt b/libgo/go/cmd/go/testdata/script/mod_internal.txt
index 5a361a4..1193d52 100644
--- a/libgo/go/cmd/go/testdata/script/mod_internal.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_internal.txt
@@ -2,8 +2,7 @@
 [short] skip
 
 # golang.org/x/internal should be importable from other golang.org/x modules.
-rm go.mod
-go mod init golang.org/x/anything
+go mod edit -module=golang.org/x/anything
 go build .
 
 # ...and their tests...
@@ -20,8 +19,7 @@
 stderr 'use of internal package internal/testenv not allowed'
 
 # Dependencies should be able to use their own internal modules...
-rm go.mod
-go mod init golang.org/notx
+go mod edit -module=golang.org/notx
 go build ./throughdep
 
 # ... but other modules should not, even if they have transitive dependencies.
@@ -34,8 +32,7 @@
 stderr 'use of internal package golang.org/x/.* not allowed'
 
 # Replacing an internal module should keep it internal to the same paths.
-rm go.mod
-go mod init golang.org/notx
+go mod edit -module=golang.org/notx
 go mod edit -replace golang.org/x/internal=./replace/golang.org/notx/internal
 go build ./throughdep
 
@@ -50,6 +47,9 @@
 stderr golang.org[/\\]notx[/\\]useinternal
 stderr 'use of internal package golang.org/x/.* not allowed'
 
+-- go.mod --
+module TBD
+go 1.12
 -- useinternal.go --
 package useinternal
 import _ "golang.org/x/internal/subtle"
diff --git a/libgo/go/cmd/go/testdata/script/mod_issue35317.txt b/libgo/go/cmd/go/testdata/script/mod_issue35317.txt
new file mode 100644
index 0000000..92416a5
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_issue35317.txt
@@ -0,0 +1,8 @@
+# Regression test for golang.org/issue/35317:
+# 'go get' with multiple module-only arguments was racy.
+
+env GO111MODULE=on
+[short] skip
+
+go mod init example.com
+go get golang.org/x/text@v0.3.0 golang.org/x/internal@v0.1.0 golang.org/x/exp@none
diff --git a/libgo/go/cmd/go/testdata/script/mod_list_dir.txt b/libgo/go/cmd/go/testdata/script/mod_list_dir.txt
index a8023cc..f6994c1 100644
--- a/libgo/go/cmd/go/testdata/script/mod_list_dir.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_list_dir.txt
@@ -12,10 +12,10 @@
 go list -f '{{.ImportPath}}' .
 stdout ^x$
 ! go list -f '{{.ImportPath}}' $GOPATH/pkg/mod/rsc.io/quote@v1.5.2
-stderr '^can.t load package: package '$WORK'[/\\]gopath/pkg/mod/rsc.io/quote@v1.5.2: can only use path@version syntax with .go get.'
+stderr '^can.t load package: package '$WORK'[/\\]gopath[/\\]pkg[/\\]mod[/\\]rsc.io[/\\]quote@v1.5.2: can only use path@version syntax with .go get.'
 
 go list -e -f '{{with .Error}}{{.}}{{end}}' $GOPATH/pkg/mod/rsc.io/quote@v1.5.2
-stdout '^package '$WORK'[/\\]gopath/pkg/mod/rsc.io/quote@v1.5.2: can only use path@version syntax with .go get.'
+stdout '^package '$WORK'[/\\]gopath[/\\]pkg[/\\]mod[/\\]rsc.io[/\\]quote@v1.5.2: can only use path@version syntax with .go get.'
 go mod download rsc.io/quote@v1.5.2
 go list -f '{{.ImportPath}}' $GOPATH/pkg/mod/rsc.io/quote@v1.5.2
 stdout '^rsc.io/quote$'
diff --git a/libgo/go/cmd/go/testdata/script/mod_list_e_readonly.txt b/libgo/go/cmd/go/testdata/script/mod_list_e_readonly.txt
new file mode 100644
index 0000000..4969434
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_list_e_readonly.txt
@@ -0,0 +1,15 @@
+# 'go list -mod=readonly -e should attribute errors
+# to individual missing packages.
+# Verifies golang.org/issue/34829.
+go list -mod=readonly -e -deps -f '{{if .Error}}{{.ImportPath}}: {{.Error}}{{end}}' .
+stdout 'example.com/missing: use.go:3:8: cannot find module providing package example.com/missing: import lookup disabled by -mod=readonly'
+
+-- go.mod --
+module example.com/m
+
+go 1.14
+
+-- use.go --
+package use
+
+import _ "example.com/missing"
diff --git a/libgo/go/cmd/go/testdata/script/mod_list_upgrade.txt b/libgo/go/cmd/go/testdata/script/mod_list_upgrade.txt
index f2d0649..474df0d 100644
--- a/libgo/go/cmd/go/testdata/script/mod_list_upgrade.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_list_upgrade.txt
@@ -1,28 +1,8 @@
 env GO111MODULE=on
 
-# If the current version is not latest, 'go list -u' should include its upgrade.
 go list -m -u all
 stdout 'rsc.io/quote v1.2.0 \[v1\.5\.2\]'
 
-# If the current version is latest, 'go list -u' should omit the upgrade.
-go get -d rsc.io/quote@v1.5.2
-go list -m -u all
-stdout 'rsc.io/quote v1.5.2$'
-
-# If the current version is newer than latest, 'go list -u' should
-# omit the upgrade.
-go get -d rsc.io/quote@v1.5.3-pre1
-go list -m -u all
-stdout 'rsc.io/quote v1.5.3-pre1$'
-
-# If the current build list has a higher version and the user asks about
-# a lower one, -u should report the upgrade for the lower one
-# but leave the build list unchanged.
-go list -m -u rsc.io/quote@v1.5.1
-stdout 'rsc.io/quote v1.5.1 \[v1.5.2\]$'
-go list -m -u rsc.io/quote
-stdout 'rsc.io/quote v1.5.3-pre1$'
-
 -- go.mod --
 module x
 require rsc.io/quote v1.2.0
diff --git a/libgo/go/cmd/go/testdata/script/mod_load_badchain.txt b/libgo/go/cmd/go/testdata/script/mod_load_badchain.txt
index b97a2e6..2c532f1 100644
--- a/libgo/go/cmd/go/testdata/script/mod_load_badchain.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_load_badchain.txt
@@ -56,11 +56,13 @@
 
 func Test(t *testing.T) {}
 -- update-main-expected --
+go: example.com/badchain/c upgrade => v1.1.0
 go get: example.com/badchain/c@v1.0.0 updating to
 	example.com/badchain/c@v1.1.0: parsing go.mod:
 	module declares its path as: badchain.example.com/c
 	        but was required as: example.com/badchain/c
 -- update-a-expected --
+go: example.com/badchain/a upgrade => v1.1.0
 go get: example.com/badchain/a@v1.1.0 requires
 	example.com/badchain/b@v1.1.0 requires
 	example.com/badchain/c@v1.1.0: parsing go.mod:
@@ -73,11 +75,13 @@
 	module declares its path as: badchain.example.com/c
 	        but was required as: example.com/badchain/c
 -- list-missing-expected --
+go: found example.com/badchain/c in example.com/badchain/c v1.1.0
 go: m/use imports
 	example.com/badchain/c: example.com/badchain/c@v1.1.0: parsing go.mod:
 	module declares its path as: badchain.example.com/c
 	        but was required as: example.com/badchain/c
 -- list-missing-test-expected --
+go: found example.com/badchain/c in example.com/badchain/c v1.1.0
 go: m/testuse tested by
 	m/testuse.test imports
 	example.com/badchain/c: example.com/badchain/c@v1.1.0: parsing go.mod:
diff --git a/libgo/go/cmd/go/testdata/script/mod_missing_repo.txt b/libgo/go/cmd/go/testdata/script/mod_missing_repo.txt
new file mode 100644
index 0000000..8dae85f
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_missing_repo.txt
@@ -0,0 +1,15 @@
+# Regression test for golang.org/issue/34094: modules hosted within gitlab.com
+# subgroups could not be fetched because the server returned bogus go-import
+# tags for prefixes of the module path.
+
+[!net] skip
+[!exec:git] skip
+
+env GO111MODULE=on
+env GOPROXY=direct
+env GOSUMDB=off
+
+! go get -d vcs-test.golang.org/go/missingrepo/missingrepo-git
+stderr 'vcs-test.golang.org/go/missingrepo/missingrepo-git: git ls-remote .*: exit status .*'
+
+go get -d vcs-test.golang.org/go/missingrepo/missingrepo-git/notmissing
diff --git a/libgo/go/cmd/go/testdata/script/mod_missingpkg_prerelease.txt b/libgo/go/cmd/go/testdata/script/mod_missingpkg_prerelease.txt
index 6203606..319ff85 100644
--- a/libgo/go/cmd/go/testdata/script/mod_missingpkg_prerelease.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_missingpkg_prerelease.txt
@@ -3,6 +3,11 @@
 ! go list use.go
 stderr 'example.com/missingpkg/deprecated: package provided by example.com/missingpkg at latest version v1.0.0 but not at required version v1.0.1-beta'
 
+-- go.mod --
+module m
+
+go 1.14
+
 -- use.go --
 package use
 
diff --git a/libgo/go/cmd/go/testdata/script/mod_modinfo.txt b/libgo/go/cmd/go/testdata/script/mod_modinfo.txt
index 1e7dd44..731f53c 100644
--- a/libgo/go/cmd/go/testdata/script/mod_modinfo.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_modinfo.txt
@@ -3,7 +3,8 @@
 # when module is enabled.
 env GO111MODULE=on
 
-[gccgo] stop
+# gccgo doesn't support reading modinfo in init functions.
+[gccgo] skip
 
 cd x
 go mod edit -require=rsc.io/quote@v1.5.2
diff --git a/libgo/go/cmd/go/testdata/script/mod_outside.txt b/libgo/go/cmd/go/testdata/script/mod_outside.txt
index 4182e71..03ef576 100644
--- a/libgo/go/cmd/go/testdata/script/mod_outside.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_outside.txt
@@ -17,7 +17,7 @@
 stdout '^command-line-arguments$'
 # 'go list' in the working directory should fail even if there is a a 'package
 # main' present: without a main module, we do not know its package path.
-! go list ./foo
+! go list ./needmod
 stderr 'cannot find main module'
 
 # 'go list all' lists the transitive import graph of the main module,
@@ -25,8 +25,6 @@
 go list all
 ! stdout .
 stderr 'warning: "all" matched no packages'
-go list -m all
-stderr 'warning: pattern "all" matched no module dependencies'
 
 # 'go list' on standard-library packages should work, since they do not depend
 # on the contents of any module.
@@ -38,7 +36,7 @@
 stdout '^fmt$'
 
 # 'go list' should work with file arguments.
-go list ./foo/foo.go
+go list ./needmod/needmod.go
 stdout 'command-line-arguments'
 
 # 'go list -m' with an explicit version should resolve that version.
@@ -49,12 +47,22 @@
 go list -m -versions example.com/version
 stdout 'v1.0.0\s+v1.0.1\s+v1.1.0'
 
-# 'go list -m <mods> all' does not include the dependencies of <mods> in the computation of 'all'.
-go list -m example.com/printversion@v1.0.0 all
-stdout 'example.com/printversion v1.0.0'
-stderr 'warning: pattern "all" matched no module dependencies'
+# 'go list -m all' should fail. "all" is not meaningful outside of a module.
+! go list -m all
+stderr 'go: cannot match "all": working directory is not part of a module'
+
+# 'go list -m <mods> all' should also fail.
+! go list -m example.com/printversion@v1.0.0 all
+stderr 'go: cannot match "all": working directory is not part of a module'
 ! stdout 'example.com/version'
 
+# 'go list -m' with wildcards should fail. Wildcards match modules in the
+# build list, so they aren't meaningful outside a module.
+! go list -m ...
+stderr 'go: cannot match "...": working directory is not part of a module'
+! go list -m rsc.io/quote/...
+stderr 'go: cannot match "rsc.io/quote/...": working directory is not part of a module'
+
 
 # 'go clean' should skip the current directory if it isn't in a module.
 go clean -n
@@ -66,10 +74,9 @@
 ! stdout .
 ! stderr .
 
-# 'go mod why' should report that nothing is a dependency.
-go mod why -m example.com/version
-stdout 'does not need'
-
+# 'go mod why' should fail, since there is no main module to depend on anything.
+! go mod why -m example.com/version
+stderr 'cannot find main module'
 
 # 'go mod edit', 'go mod tidy', and 'go mod fmt' should fail:
 # there is no go.mod file to edit.
@@ -81,21 +88,30 @@
 stderr 'cannot find main module'
 
 
+# 'go mod download' without arguments should report an error.
+! go mod download
+stderr 'no modules specified'
+
 # 'go mod download' should download exactly the requested module without dependencies.
 rm -r $GOPATH/pkg/mod/cache/download/example.com
 go mod download example.com/printversion@v1.0.0
 exists $GOPATH/pkg/mod/cache/download/example.com/printversion/@v/v1.0.0.zip
 ! exists $GOPATH/pkg/mod/cache/download/example.com/version/@v/v1.0.0.zip
 
+# 'go mod download all' should fail. "all" is not meaningful outside of a module.
+! go mod download all
+stderr 'go: cannot match "all": working directory is not part of a module'
+
+
 # 'go mod vendor' should fail: it starts by clearing the existing vendor
 # directory, and we don't know where that is.
 ! go mod vendor
 stderr 'cannot find main module'
 
-# 'go mod verify' should succeed: we have no modules to verify.
-go mod verify
-stdout 'all modules verified'
-! stderr .
+
+# 'go mod verify' should fail: we have no modules to verify.
+! go mod verify
+stderr 'cannot find main module'
 
 
 # 'go get' without arguments implicitly operates on the main module, and thus
@@ -104,14 +120,13 @@
 stderr 'cannot find main module'
 ! go get -u
 stderr 'cannot find main module'
-! go get -u ./foo
+! go get -u ./needmod
 stderr 'cannot find main module'
 
 # 'go get -u all' upgrades the transitive import graph of the main module,
 # which is empty.
-go get -u all
-! stdout .
-stderr 'warning: "all" matched no packages'
+! go get -u all
+stderr 'go get all: cannot match "all": working directory is not part of a module'
 
 # 'go get' should check the proposed module graph for consistency,
 # even though we won't write it anywhere.
@@ -126,35 +141,75 @@
 
 
 # 'go build' without arguments implicitly operates on the current directory, and should fail.
-cd foo
+cd needmod
 ! go build
 stderr 'cannot find main module'
 cd ..
 
 # 'go build' of a non-module directory should fail too.
-! go build ./foo
+! go build ./needmod
 stderr 'cannot find main module'
 
-# However, 'go build' should succeed for standard-library packages.
+# 'go build' of source files should fail if they import anything outside std.
+! go build -n ./needmod/needmod.go
+stderr 'needmod[/\\]needmod.go:10:2: cannot find module providing package example.com/version: working directory is not part of a module'
+
+# 'go build' of source files should succeed if they do not import anything outside std.
+go build -n -o ignore ./stdonly/stdonly.go
+
+# 'go build' should succeed for standard-library packages.
 go build -n fmt
 
 
-# TODO(golang.org/issue/28992): 'go doc' should document the latest version.
-# For now it does not.
+# 'go doc' without arguments implicitly operates on the current directory, and should fail.
+# TODO(golang.org/issue/32027): currently, it succeeds.
+cd needmod
+go doc
+cd ..
+
+# 'go doc' of a non-module directory should also succeed.
+go doc ./needmod
+
+# 'go doc' should succeed for standard-library packages.
+go doc fmt
+
+# 'go doc' should fail for a package path outside a module.
 ! go doc example.com/version
-stderr 'no such package'
+stderr 'doc: cannot find module providing package example.com/version: working directory is not part of a module'
 
 # 'go install' with a version should fail due to syntax.
 ! go install example.com/printversion@v1.0.0
 stderr 'can only use path@version syntax with'
 
+# 'go install' should fail if a package argument must be resolved to a module.
+! go install example.com/printversion
+stderr 'cannot find module providing package example.com/printversion: working directory is not part of a module'
+
+# 'go install' should fail if a source file imports a package that must be
+# resolved to a module.
+! go install ./needmod/needmod.go
+stderr 'needmod[/\\]needmod.go:10:2: cannot find module providing package example.com/version: working directory is not part of a module'
+
+
+# 'go run' with a verison should fail due to syntax.
+! go run example.com/printversion@v1.0.0
+stderr 'can only use path@version syntax with'
+
+# 'go run' should fail if a package argument must be resolved to a module.
+! go run example.com/printversion
+stderr 'cannot find module providing package example.com/printversion: working directory is not part of a module'
+
+# 'go run' should fail if a source file imports a package that must be
+# resolved to a module.
+! go run ./needmod/needmod.go
+stderr 'needmod[/\\]needmod.go:10:2: cannot find module providing package example.com/version: working directory is not part of a module'
+
 
 # 'go fmt' should be able to format files outside of a module.
-go fmt foo/foo.go
+go fmt needmod/needmod.go
 
 
 # The remainder of the test checks dependencies by linking and running binaries.
-[short] stop
 
 # 'go get' of a binary without a go.mod should install the requested version,
 # resolving outside dependencies to the latest available versions.
@@ -180,39 +235,31 @@
 stdout 'main is example.com/printversion v1.0.0'
 stdout 'using example.com/version v1.0.1'
 
-# 'go install' without a version should install the latest version
-# using its minimal module requirements.
-go install example.com/printversion
-exec ../bin/printversion
-stdout 'path is example.com/printversion'
-stdout 'main is example.com/printversion v1.0.0'
-stdout 'using example.com/version v1.0.0'
-
-# 'go run' should use 'main' as the effective module and import path.
-go run ./foo/foo.go
+# 'go run' should work with file arguments if they don't import anything
+# outside std.
+go run ./stdonly/stdonly.go
 stdout 'path is command-line-arguments$'
 stdout 'main is command-line-arguments \(devel\)'
-stdout 'using example.com/version v1.1.0'
 
 # 'go generate' should work with file arguments.
-[exec:touch] go generate ./foo/foo.go
-[exec:touch] exists ./foo/gen.txt
+[exec:touch] go generate ./needmod/needmod.go
+[exec:touch] exists ./needmod/gen.txt
 
 # 'go install' should work with file arguments.
-go install ./foo/foo.go
+go install ./stdonly/stdonly.go
 
 # 'go test' should work with file arguments.
-go test -v ./foo/foo_test.go
-stdout 'foo was tested'
+go test -v ./stdonly/stdonly_test.go
+stdout 'stdonly was tested'
 
 # 'go vet' should work with file arguments.
-go vet ./foo/foo.go
+go vet ./stdonly/stdonly.go
 
 
 -- README.txt --
 There is no go.mod file in the working directory.
 
--- foo/foo.go --
+-- needmod/needmod.go --
 //go:generate touch gen.txt
 
 package main
@@ -237,7 +284,28 @@
 	}
 }
 
--- foo/foo_test.go --
+-- stdonly/stdonly.go --
+package main
+
+import (
+	"fmt"
+	"os"
+	"runtime/debug"
+)
+
+func main() {
+	info, ok := debug.ReadBuildInfo()
+	if !ok {
+		panic("missing build info")
+	}
+	fmt.Fprintf(os.Stdout, "path is %s\n", info.Path)
+	fmt.Fprintf(os.Stdout, "main is %s %s\n", info.Main.Path, info.Main.Version)
+	for _, m := range info.Deps {
+		fmt.Fprintf(os.Stdout, "using %s %s\n", m.Path, m.Version)
+	}
+}
+
+-- stdonly/stdonly_test.go --
 package main
 
 import (
@@ -245,6 +313,7 @@
 	"testing"
 )
 
-func TestFoo(t *testing.T) {
-	fmt.Println("foo was tested")
+func Test(t *testing.T) {
+	fmt.Println("stdonly was tested")
 }
+
diff --git a/libgo/go/cmd/go/testdata/script/mod_permissions.txt b/libgo/go/cmd/go/testdata/script/mod_permissions.txt
new file mode 100644
index 0000000..11fb475
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_permissions.txt
@@ -0,0 +1,57 @@
+# Regression test for golang.org/issue/34634: permissions for the go.sum and
+# go.mod files should be preserved when overwriting them.
+
+env GO111MODULE=on
+[short] skip
+
+# Skip platforms that do not have Unix-style file permissions.
+[windows] skip
+[plan9] skip
+
+chmod 0640 go.mod
+chmod 0604 go.sum
+go mod edit -module=golang.org/issue/34634
+
+go build .
+cmp go.mod go.mod.want
+cmp go.sum go.sum.want
+
+go run .
+stdout 'go.mod: 0640'
+stdout 'go.sum: 0604'
+
+-- read_perm.go --
+package main
+
+import (
+	"fmt"
+	"os"
+	_ "rsc.io/sampler"
+)
+
+func main() {
+	for _, name := range []string{"go.mod", "go.sum"} {
+		fi, err := os.Stat(name)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "%s: %v\n", err)
+			continue
+		}
+		fmt.Printf("%s: 0%o\n", name, fi.Mode().Perm())
+	}
+}
+-- go.mod --
+module TODO
+
+go 1.14
+-- go.sum --
+-- go.mod.want --
+module golang.org/issue/34634
+
+go 1.14
+
+require rsc.io/sampler v1.99.99
+-- go.sum.want --
+golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c h1:pvCbr/wm8HzDD3fVywevekufpn6tCGPY3spdHeZJEsw=
+golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+rsc.io/sampler v1.99.99 h1:iMG9lbEG/8MdeR4lgL+Q8IcwbLNw7ijW7fTiK8Miqts=
+rsc.io/sampler v1.99.99/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
diff --git a/libgo/go/cmd/go/testdata/script/mod_prefer_compatible.txt b/libgo/go/cmd/go/testdata/script/mod_prefer_compatible.txt
new file mode 100644
index 0000000..aa6260f
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_prefer_compatible.txt
@@ -0,0 +1,65 @@
+# Regression test for golang.org/issue/34189 and golang.org/issue/34165:
+# @latest, @upgrade, and @patch should prefer compatible versions over
+# +incompatible ones, even if offered by a proxy.
+
+[!net] skip
+
+env GO111MODULE=on
+env GOPROXY=
+env GOSUMDB=
+
+# github.com/russross/blackfriday v2.0.0+incompatible exists,
+# and should be resolved if we ask for v2.0 explicitly.
+
+go list -m github.com/russross/blackfriday@v2.0
+stdout '^github.com/russross/blackfriday v2\.0\.0\+incompatible$'
+
+# blackfriday v1.5.2 has a go.mod file, so v1.5.2 should be preferred over
+# v2.0.0+incompatible when resolving latest, upgrade, and patch.
+
+go list -m github.com/russross/blackfriday@latest
+stdout '^github.com/russross/blackfriday v1\.'
+
+go list -m github.com/russross/blackfriday@upgrade
+stdout '^github.com/russross/blackfriday v1\.'
+
+go list -m github.com/russross/blackfriday@patch
+stdout '^github.com/russross/blackfriday v1\.'
+
+# If we're fetching directly from version control, ignored +incompatible
+# versions should also be omitted by 'go list'.
+
+# (Note that they may still be included in results from a proxy: in proxy mode,
+# we would need to fetch the whole zipfile for the latest compatible version in
+# order to determine whether it contains a go.mod file, and part of the point of
+# the proxy is to avoid fetching unnecessary data.)
+
+[!exec:git] stop
+env GOPROXY=direct
+
+go list -versions -m github.com/russross/blackfriday github.com/russross/blackfriday
+stdout '^github.com/russross/blackfriday v1\.5\.1 v1\.5\.2' # and possibly others
+! stdout ' v2\.'
+
+# However, if the latest compatible version does not include a go.mod file,
+# +incompatible versions should still be listed, as they may still reflect the
+# intent of the module author.
+
+go list -versions -m github.com/rsc/legacytest
+stdout '^github.com/rsc/legacytest v1\.0\.0 v1\.1\.0-pre v1\.2\.0 v2\.0\.0\+incompatible'
+
+# If we're fetching directly from version control, asking for a commit hash
+# corresponding to a +incompatible version should continue to produce the
+# +incompatible version tagged for that commit, even if it is no longer listed.
+
+go list -m github.com/russross/blackfriday@cadec560ec52
+stdout '^github.com/russross/blackfriday v2\.0\.0\+incompatible$'
+
+# Similarly, requesting an untagged commit should continue to produce a +incompatible
+# pseudo-version.
+
+go list -m github.com/rsc/legacytest@7303f7796364
+stdout '^github.com/rsc/legacytest v2\.0\.1-0\.20180717164253-7303f7796364\+incompatible$'
+
+-- go.mod --
+module github.com/golang.org/issue/34165
diff --git a/libgo/go/cmd/go/testdata/script/mod_proxy_errors.txt b/libgo/go/cmd/go/testdata/script/mod_proxy_errors.txt
new file mode 100644
index 0000000..9cd1a82
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_proxy_errors.txt
@@ -0,0 +1,19 @@
+[!net] skip
+
+env GO111MODULE=on
+env GOSUMDB=off
+env GOPROXY=direct
+
+# Server responses should be truncated to some reasonable number of lines.
+# (For now, exactly eight.)
+! go list -m vcs-test.golang.org/auth/ormanylines@latest
+stderr '\tserver response:\n(.|\n)*\tline 8\n\t\[Truncated: too many lines.\]$'
+
+# Server responses should be truncated to some reasonable number of characters.
+! go list -m vcs-test.golang.org/auth/oronelongline@latest
+! stderr 'blah{40}'
+stderr '\tserver response: \[Truncated: too long\.\]$'
+
+# Responses from servers using the 'mod' protocol should be propagated.
+! go list -m vcs-test.golang.org/go/modauth404@latest
+stderr '\tserver response: File\? What file\?'
diff --git a/libgo/go/cmd/go/testdata/script/mod_readonly.txt b/libgo/go/cmd/go/testdata/script/mod_readonly.txt
index ff25f4b..1d1771e 100644
--- a/libgo/go/cmd/go/testdata/script/mod_readonly.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_readonly.txt
@@ -2,16 +2,22 @@
 [short] skip
 
 # -mod=readonly must not resolve missing modules nor update go.mod
-#
-# TODO(bcmills): 'go list' should suffice, but today it does not fail due to
-# unresolved imports. When that is fixed, use 'go list' instead of 'go list all'.
 env GOFLAGS=-mod=readonly
 go mod edit -fmt
 cp go.mod go.mod.empty
 ! go list all
-stderr 'import lookup disabled by -mod=readonly'
+stderr '^can''t load package: x.go:2:8: cannot find module providing package rsc\.io/quote: import lookup disabled by -mod=readonly'
 cmp go.mod go.mod.empty
 
+# -mod=readonly should be set implicitly if the go.mod file is read-only
+chmod 0400 go.mod
+env GOFLAGS=
+! go list all
+stderr '^can''t load package: x.go:2:8: cannot find module providing package rsc\.io/quote: import lookup disabled by -mod=readonly\n\t\(go.mod file is read-only\.\)$'
+
+chmod 0600 go.mod
+env GOFLAGS=-mod=readonly
+
 # update go.mod - go get allowed
 go get rsc.io/quote
 grep rsc.io/quote go.mod
@@ -19,13 +25,14 @@
 # update go.mod - go mod tidy allowed
 cp go.mod.empty go.mod
 go mod tidy
+cp go.mod go.mod.tidy
 
 # -mod=readonly must succeed once go.mod is up-to-date...
-go list
+go list all
 
 # ... even if it needs downloads
 go clean -modcache
-go list
+go list all
 
 # -mod=readonly should reject inconsistent go.mod files
 # (ones that would be rewritten).
@@ -35,6 +42,19 @@
 stderr 'go: updates to go.mod needed, disabled by -mod=readonly'
 cmp go.mod go.mod.inconsistent
 
+# However, it should not reject files missing a 'go' directive,
+# since that was not always required.
+cp go.mod.nogo go.mod
+go list all
+
+# Nor should it reject files with redundant (not incorrect)
+# requirements.
+cp go.mod.redundant go.mod
+go list all
+
+cp go.mod.indirect go.mod
+go list all
+
 -- go.mod --
 module m
 
@@ -43,3 +63,30 @@
 -- x.go --
 package x
 import _ "rsc.io/quote"
+-- go.mod.nogo --
+module m
+
+require (
+	rsc.io/quote v1.5.2
+	rsc.io/testonly v1.0.0 // indirect
+)
+-- go.mod.redundant --
+module m
+
+go 1.20
+
+require (
+	rsc.io/quote v1.5.2
+	rsc.io/sampler v1.3.0 // indirect
+	rsc.io/testonly v1.0.0 // indirect
+)
+-- go.mod.indirect --
+module m
+
+go 1.20
+
+require (
+	rsc.io/quote v1.5.2 // indirect
+	rsc.io/sampler v1.3.0 // indirect
+	rsc.io/testonly v1.0.0 // indirect
+)
diff --git a/libgo/go/cmd/go/testdata/script/mod_replace.txt b/libgo/go/cmd/go/testdata/script/mod_replace.txt
index 35824b3..c21f172 100644
--- a/libgo/go/cmd/go/testdata/script/mod_replace.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_replace.txt
@@ -38,6 +38,20 @@
 exec ./a5.exe
 stdout 'Concurrency is not parallelism.'
 
+# Error messages for modules not found in replacements should
+# indicate the replacement module.
+cp go.mod.orig go.mod
+go mod edit -replace=rsc.io/quote/v3=./local/rsc.io/quote/v3
+! go get -d rsc.io/quote/v3/missing-package
+stderr 'module rsc.io/quote/v3@upgrade found \(v3.0.0, replaced by ./local/rsc.io/quote/v3\), but does not contain package'
+
+# The reported Dir and GoMod for a replaced module should be accurate.
+cp go.mod.orig go.mod
+go mod edit -replace=rsc.io/quote/v3=not-rsc.io/quote@v0.1.0-nomod
+go mod download
+go list -m -f '{{.Path}} {{.Version}} {{.Dir}} {{.GoMod}}{{with .Replace}} => {{.Path}} {{.Version}} {{.Dir}} {{.GoMod}}{{end}}' rsc.io/quote/v3
+stdout '^rsc.io/quote/v3 v3.0.0 '$GOPATH'[/\\]pkg[/\\]mod[/\\]not-rsc.io[/\\]quote@v0.1.0-nomod '$GOPATH'[/\\]pkg[/\\]mod[/\\]cache[/\\]download[/\\]not-rsc.io[/\\]quote[/\\]@v[/\\]v0.1.0-nomod.mod => not-rsc.io/quote v0.1.0-nomod '$GOPATH'[/\\]pkg[/\\]mod[/\\]not-rsc.io[/\\]quote@v0.1.0-nomod '$GOPATH'[/\\]pkg[/\\]mod[/\\]cache[/\\]download[/\\]not-rsc.io[/\\]quote[/\\]@v[/\\]v0.1.0-nomod.mod$'
+
 -- go.mod --
 module quoter
 
diff --git a/libgo/go/cmd/go/testdata/script/mod_replace_gopkgin.txt b/libgo/go/cmd/go/testdata/script/mod_replace_gopkgin.txt
new file mode 100644
index 0000000..6608fb1
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_replace_gopkgin.txt
@@ -0,0 +1,28 @@
+# Regression test for golang.org/issue/34254:
+# a clone of gopkg.in/[…].vN should be replaceable by
+# a fork hosted at corp.example.com/[…]/vN,
+# even if there is an explicit go.mod file containing the
+# gopkg.in path.
+
+[short] skip
+[!net] skip
+[!exec:git] skip
+
+env GO111MODULE=on
+env GOPROXY=direct
+env GOSUMDB=off
+
+# Replacing gopkg.in/[…].vN with a repository with a root go.mod file
+# specifying […].vN and a compatible version should succeed, even if
+# the replacement path is not a gopkg.in path.
+cd dot-to-dot
+go list gopkg.in/src-d/go-git.v4
+
+-- dot-to-dot/go.mod --
+module golang.org/issue/34254
+
+go 1.13
+
+require gopkg.in/src-d/go-git.v4 v4.13.1
+
+replace gopkg.in/src-d/go-git.v4 v4.13.1 => github.com/src-d/go-git/v4 v4.13.1
diff --git a/libgo/go/cmd/go/testdata/script/mod_replace_import.txt b/libgo/go/cmd/go/testdata/script/mod_replace_import.txt
index 0da753a..941ef61 100644
--- a/libgo/go/cmd/go/testdata/script/mod_replace_import.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_replace_import.txt
@@ -23,6 +23,13 @@
 stdout 'example.com/x/v3 v3.0.0-00010101000000-000000000000 => ./v3'
 stdout 'example.com/v v1.12.0 => ./v12'
 
+# The go command should print an informative error when the matched
+# module does not contain a package.
+cd fail
+! go list all
+stdout 'localhost.fail'
+stderr '^can.t load package: m.go:3:8: module w@latest found \(v0.0.0-00010101000000-000000000000, replaced by ../w\), but does not contain package w$'
+
 -- go.mod --
 module example.com/m
 
@@ -107,3 +114,16 @@
 module v.localhost
 -- v/v.go --
 package v
+
+-- fail/m.go --
+package main
+
+import _ "w"
+
+func main() {}
+
+-- fail/go.mod --
+module localhost.fail
+
+replace w => ../w
+
diff --git a/libgo/go/cmd/go/testdata/script/mod_retention.txt b/libgo/go/cmd/go/testdata/script/mod_retention.txt
new file mode 100644
index 0000000..bff4142
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_retention.txt
@@ -0,0 +1,135 @@
+# Regression test for golang.org/issue/34822: the 'go' command should prefer not
+# to update the go.mod file if the changes only affect formatting, and should only
+# remove redundant requirements in 'go mod tidy'.
+
+env GO111MODULE=on
+[short] skip
+
+# Control case: verify that go.mod.tidy is actually tidy.
+cp go.mod.tidy go.mod
+go list all
+cmp go.mod go.mod.tidy
+
+
+# If the only difference in the go.mod file is the line endings,
+# it should not be overwritten automatically.
+cp go.mod.crlf go.mod
+go list all
+cmp go.mod go.mod.crlf
+
+# However, 'go mod tidy' should fix whitespace even if there are no other changes.
+go mod tidy
+cmp go.mod go.mod.tidy
+
+
+# Out-of-order requirements should not be overwritten automatically...
+cp go.mod.unsorted go.mod
+go list all
+cmp go.mod go.mod.unsorted
+
+# ...but 'go mod edit -fmt' should sort them.
+go mod edit -fmt
+cmp go.mod go.mod.tidy
+
+
+# "// indirect" comments should be removed if direct dependencies are seen.
+# changes.
+cp go.mod.indirect go.mod
+go list all
+cmp go.mod go.mod.tidy
+
+# "// indirect" comments should be added if appropriate.
+cp go.mod.toodirect go.mod
+go list all
+cmp go.mod go.mod.toodirect
+go mod vendor # loads everything, so adds "// indirect" comments.
+cmp go.mod go.mod.tidy
+rm -r vendor
+
+
+# Redundant requirements should be preserved...
+cp go.mod.redundant go.mod
+go list all
+cmp go.mod go.mod.redundant
+go mod vendor
+cmp go.mod go.mod.redundant
+rm -r vendor
+
+# ...except by 'go mod tidy'.
+go mod tidy
+cmp go.mod go.mod.tidy
+
+
+# A missing "go" version directive should be added.
+# However, that should not remove other redundant requirements.
+cp go.mod.nogo go.mod
+go list all
+cmp go.mod go.mod.redundant
+
+
+-- go.mod.tidy --
+module m
+
+go 1.14
+
+require (
+	rsc.io/quote v1.5.2
+	rsc.io/testonly v1.0.0 // indirect
+)
+-- x.go --
+package x
+import _ "rsc.io/quote"
+-- go.mod.crlf --
+module m
+
+go 1.14
+
+require (
+	rsc.io/quote v1.5.2
+	rsc.io/testonly v1.0.0 // indirect
+)
+-- go.mod.unsorted --
+module m
+
+go 1.14
+
+require (
+	rsc.io/testonly v1.0.0 // indirect
+	rsc.io/quote v1.5.2
+)
+-- go.mod.indirect --
+module m
+
+go 1.14
+
+require (
+	rsc.io/quote v1.5.2 // indirect
+	rsc.io/testonly v1.0.0 // indirect
+)
+-- go.mod.toodirect --
+module m
+
+go 1.14
+
+require (
+	rsc.io/quote v1.5.2
+	rsc.io/testonly v1.0.0
+)
+-- go.mod.redundant --
+module m
+
+go 1.14
+
+require (
+	rsc.io/quote v1.5.2
+	rsc.io/sampler v1.3.0 // indirect
+	rsc.io/testonly v1.0.0 // indirect
+)
+-- go.mod.nogo --
+module m
+
+require (
+	rsc.io/quote v1.5.2
+	rsc.io/sampler v1.3.0 // indirect
+	rsc.io/testonly v1.0.0 // indirect
+)
diff --git a/libgo/go/cmd/go/testdata/script/mod_sumdb.txt b/libgo/go/cmd/go/testdata/script/mod_sumdb.txt
index 641b9e7..caf97e9 100644
--- a/libgo/go/cmd/go/testdata/script/mod_sumdb.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_sumdb.txt
@@ -9,7 +9,7 @@
 cp go.mod.orig go.mod
 env GOSUMDB=$sumdb' '$proxy/sumdb-wrong
 ! go get -d rsc.io/quote
-stderr 'verifying rsc.io/quote@v1.5.2: checksum mismatch'
+stderr 'go get rsc.io/quote: rsc.io/quote@v1.5.2: verifying module: checksum mismatch'
 stderr 'downloaded: h1:3fEy'
 stderr 'localhost.localdev/sumdb: h1:wrong'
 stderr 'SECURITY ERROR\nThis download does NOT match the one reported by the checksum server.'
diff --git a/libgo/go/cmd/go/testdata/script/mod_sumdb_cache.txt b/libgo/go/cmd/go/testdata/script/mod_sumdb_cache.txt
index 486bdf5..2937b2e 100644
--- a/libgo/go/cmd/go/testdata/script/mod_sumdb_cache.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_sumdb_cache.txt
@@ -37,7 +37,14 @@
 ! go get -d rsc.io/quote@v1.5.2
 stderr 504
 
+# GOINSECURE does not bypass checksum lookup
+env GOINSECURE=rsc.io
+env GOPROXY=$proxy/sumdb-504
+! go get -d rsc.io/quote@v1.5.2
+stderr 504
+
 # but -insecure bypasses the checksum lookup entirely
+env GOINSECURE=
 go get -d -insecure rsc.io/quote@v1.5.2
 
 # and then it is in go.sum again
diff --git a/libgo/go/cmd/go/testdata/script/mod_sumdb_file_path.txt b/libgo/go/cmd/go/testdata/script/mod_sumdb_file_path.txt
index 47c8a3a..6108c0a 100644
--- a/libgo/go/cmd/go/testdata/script/mod_sumdb_file_path.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_sumdb_file_path.txt
@@ -7,10 +7,13 @@
 # With a file-based proxy with an empty checksum directory,
 # downloading a new module should fail, even if a subsequent
 # proxy contains a more complete mirror of the sum database.
+#
+# TODO(bcmills): The error message here is a bit redundant.
+# It comes from the sumweb package, which isn't yet producing structured errors.
 [windows] env GOPROXY=file:///$WORK/sumproxy,https://proxy.golang.org
 [!windows] env GOPROXY=file://$WORK/sumproxy,https://proxy.golang.org
 ! go get -d golang.org/x/text@v0.3.2
-stderr '^verifying golang.org/x/text.*: Not Found'
+stderr '^go get golang.org/x/text@v0.3.2: golang.org/x/text@v0.3.2: verifying module: golang.org/x/text@v0.3.2: reading file://.*/sumdb/sum.golang.org/lookup/golang.org/x/text@v0.3.2: (no such file or directory|.*cannot find the path specified.*)'
 
 # If the proxy does not claim to support the database,
 # checksum verification should fall through to the next proxy,
diff --git a/libgo/go/cmd/go/testdata/script/mod_test_files.txt b/libgo/go/cmd/go/testdata/script/mod_test_files.txt
index 87aecb4..6f520c7 100644
--- a/libgo/go/cmd/go/testdata/script/mod_test_files.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_test_files.txt
@@ -20,6 +20,7 @@
 
 -- foo/go.mod --
 module example.com/foo
+go 1.12
 require example.com/internal v0.0.0
 replace example.com/internal => ../internal
 
diff --git a/libgo/go/cmd/go/testdata/script/mod_tidy.txt b/libgo/go/cmd/go/testdata/script/mod_tidy.txt
index de3b52e..b1d9371 100644
--- a/libgo/go/cmd/go/testdata/script/mod_tidy.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_tidy.txt
@@ -5,7 +5,6 @@
 stderr '^unused y.1'
 ! stderr '^unused [^y]'
 
-# tidy should not touch existing go line
 grep 'go 1.10' go.mod
 
 go list -m all
diff --git a/libgo/go/cmd/go/testdata/script/mod_tidy_cycle.txt b/libgo/go/cmd/go/testdata/script/mod_tidy_cycle.txt
new file mode 100644
index 0000000..e46f37d
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_tidy_cycle.txt
@@ -0,0 +1,75 @@
+# Regression test for https://golang.org/issue/34086:
+# 'go mod tidy' produced different go.mod file from other
+# subcommands when certain kinds of cycles were present
+# in the build graph.
+
+env GO111MODULE=on
+
+cp go.mod go.mod.orig
+go mod tidy
+cmp go.mod go.mod.orig
+
+# If the go.mod file is already tidy, 'go mod graph' should not modify it.
+go mod graph
+cmp go.mod go.mod.orig
+
+-- go.mod --
+module root
+
+go 1.13
+
+replace (
+	a v0.1.0 => ./a1
+	b v0.1.0 => ./b1
+	b v0.2.0 => ./b2
+	c v0.1.0 => ./c1
+	c v0.2.0 => ./c2
+)
+
+require (
+	a v0.1.0
+	b v0.2.0 // indirect
+)
+-- main.go --
+package main
+
+import _ "a"
+
+func main() {}
+
+-- a1/go.mod --
+module a
+
+go 1.13
+
+require b v0.1.0
+-- a1/a.go --
+package a
+
+import _ "c"
+-- b1/go.mod --
+module b
+
+go 1.13
+
+require c v0.1.0
+-- b2/go.mod --
+module b
+
+go 1.13
+
+require c v0.2.0
+-- c1/go.mod --
+module c
+
+go 1.13
+-- c2/c.go --
+package c
+-- c2/go.mod --
+module c
+
+go 1.13
+
+require b v0.2.0
+-- c2/c.go --
+package c
diff --git a/libgo/go/cmd/go/testdata/script/mod_tidy_error.txt b/libgo/go/cmd/go/testdata/script/mod_tidy_error.txt
index 9bb8528..b6c24ce 100644
--- a/libgo/go/cmd/go/testdata/script/mod_tidy_error.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_tidy_error.txt
@@ -4,12 +4,12 @@
 # 'go mod tidy' and 'go mod vendor' should not hide loading errors.
 
 ! go mod tidy
-stderr '^issue27063 imports\n\tnonexist: malformed module path "nonexist": missing dot in first path element'
+stderr '^issue27063 imports\n\tnonexist: package nonexist is not in GOROOT \(.*\)'
 stderr '^issue27063 imports\n\tnonexist.example.com: cannot find module providing package nonexist.example.com'
 stderr '^issue27063 imports\n\tissue27063/other imports\n\tother.example.com/nonexist: cannot find module providing package other.example.com/nonexist'
 
 ! go mod vendor
-stderr '^issue27063 imports\n\tnonexist: malformed module path "nonexist": missing dot in first path element'
+stderr '^issue27063 imports\n\tnonexist: package nonexist is not in GOROOT \(.*\)'
 stderr '^issue27063 imports\n\tnonexist.example.com: cannot find module providing package nonexist.example.com'
 stderr '^issue27063 imports\n\tissue27063/other imports\n\tother.example.com/nonexist: cannot find module providing package other.example.com/nonexist'
 
diff --git a/libgo/go/cmd/go/testdata/script/mod_tidy_replace.txt b/libgo/go/cmd/go/testdata/script/mod_tidy_replace.txt
index d5c2253..c3158f8 100644
--- a/libgo/go/cmd/go/testdata/script/mod_tidy_replace.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_tidy_replace.txt
@@ -47,6 +47,12 @@
 cd outside
 go list -m all
 stdout 'rsc.io/sampler v1.3.0'
+cd ..
+
+# The same module can't be used as two different paths.
+cd multiple-paths
+! go mod tidy
+stderr 'rsc.io/quote/v3@v3.0.0 used for two different module paths \(not-rsc.io/quote/v3 and rsc.io/quote/v3\)'
 
 -- go.mod --
 module example.com/tidy
@@ -109,3 +115,23 @@
 module golang.org/issue/30166/b
 
 require golang.org/issue/30166/a v0.0.0
+-- multiple-paths/main.go --
+package main
+
+import (
+	"fmt"
+	"rsc.io/quote/v3"
+)
+
+func main() {
+	fmt.Println(quote.GoV3())
+}
+-- multiple-paths/go.mod --
+module quoter
+
+require (
+	rsc.io/quote/v3 v3.0.0
+	not-rsc.io/quote/v3 v3.0.0
+)
+
+replace not-rsc.io/quote/v3 => rsc.io/quote/v3 v3.0.0
diff --git a/libgo/go/cmd/go/testdata/script/mod_vendor.txt b/libgo/go/cmd/go/testdata/script/mod_vendor.txt
index 5d872c3..bb3e634 100644
--- a/libgo/go/cmd/go/testdata/script/mod_vendor.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_vendor.txt
@@ -1,15 +1,15 @@
 env GO111MODULE=on
 
-go list -m all
-stdout '^x v1.0.0 => ./x'
-stdout '^w'
-
+# Without vendoring, a build should succeed unless -mod=vendor is set.
 [!short] go build
 [!short] ! go build -mod=vendor
 
+# Without vendoring, 'go list' should report the replacement directory for
+# a package in a replaced module.
 go list -f {{.Dir}} x
 stdout 'src[\\/]x'
 
+# 'go mod vendor' should copy all replaced modules to the vendor directory.
 go mod vendor -v
 stderr '^# x v1.0.0 => ./x'
 stderr '^x'
@@ -20,28 +20,47 @@
 ! stderr '^w'
 grep 'a/foo/bar/b\na/foo/bar/c' vendor/modules.txt # must be sorted
 
-go list -f {{.Dir}} x
+# An explicit '-mod=mod' should ignore the vendor directory.
+go list -mod=mod -f {{.Dir}} x
 stdout 'src[\\/]x'
 
-go list -f {{.Dir}} -m x
+go list -mod=mod -f {{.Dir}} -m x
 stdout 'src[\\/]x'
 
+# An explicit '-mod=vendor' should report package directories within
+# the vendor directory.
 go list -mod=vendor -f {{.Dir}} x
 stdout 'src[\\/]vendor[\\/]x'
 
-go list -mod=vendor -f {{.Dir}} -m x
-stdout 'src[\\/]vendor[\\/]x'
+# 'go list -mod=vendor -m' should successfully list vendored modules,
+# but should not provide a module directory because no directory contains
+# the complete module.
+go list -mod=vendor -f '{{.Version}} {{.Dir}}' -m x
+stdout '^v1.0.0 $'
 
-go list -f {{.Dir}} -m w
+# 'go list -mod=vendor -m' on a transitive dependency that does not
+# provide vendored packages should give a helpful error rather than
+# 'not a known dependency'.
+! go list -mod=vendor -f '{{.Version}} {{.Dir}}' -m diamondright
+stderr 'go list -m: module diamondright: can''t resolve module using the vendor directory\n\t\(Use -mod=mod or -mod=readonly to bypass.\)'
+
+# 'go list -mod=mod' should report packages outside the import graph,
+# but 'go list -mod=vendor' should error out for them.
+go list -mod=mod -f {{.Dir}} w
 stdout 'src[\\/]w'
-
 ! go list -mod=vendor -f {{.Dir}} w
 stderr 'src[\\/]vendor[\\/]w'
 
+go list -mod=mod -f {{.Dir}} diamondright
+stdout 'src[\\/]diamondright'
+
+# Test dependencies should not be copied.
 ! exists vendor/x/testdata
 ! exists vendor/a/foo/bar/b/ignored.go
 ! exists vendor/a/foo/bar/b/main_test.go
 
+# Licenses and other metadata for each module should be copied
+# if any package within their module is copied.
 exists vendor/a/foo/AUTHORS.txt
 exists vendor/a/foo/CONTRIBUTORS
 exists vendor/a/foo/LICENSE
@@ -59,14 +78,18 @@
 
 [short] stop
 
-go build
+# 'go build' and 'go test' using vendored packages should succeed.
+go build -mod=mod
 go build -mod=vendor
 go test -mod=vendor . ./subdir
 go test -mod=vendor ./...
+go fmt -mod=vendor ./...
 
 -- go.mod --
 module m
 
+go 1.13
+
 require (
 	a v1.0.0
 	diamondroot v0.0.0
@@ -252,10 +275,11 @@
 -- diamondroot/x.go --
 package diamondroot
 
-import (
-	_ "diamondleft"
-	_ "diamondright"
-)
+import _ "diamondleft"
+-- diamondroot/unused/unused.go --
+package unused
+
+import _ "diamondright"
 -- diamondleft/go.mod --
 module diamondleft
 
diff --git a/libgo/go/cmd/go/testdata/script/mod_vendor_auto.txt b/libgo/go/cmd/go/testdata/script/mod_vendor_auto.txt
new file mode 100644
index 0000000..53120dc
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_vendor_auto.txt
@@ -0,0 +1,256 @@
+# Integration test for golang.org/issue/33848: automatically check and use vendored packages.
+
+env GO111MODULE=on
+
+[short] skip
+
+cd $WORK/auto
+cp go.mod go.mod.orig
+cp $WORK/modules-1.13.txt $WORK/auto/modules.txt
+
+# An explicit -mod=vendor should force use of the vendor directory.
+env GOFLAGS=-mod=vendor
+
+go list -f {{.Dir}} -tags tools all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]printversion$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]version$'
+
+! go list -m all
+stderr 'go list -m: can''t compute ''all'' using the vendor directory\n\t\(Use -mod=mod or -mod=readonly to bypass.\)'
+
+! go list -m -f '{{.Dir}}' all
+stderr 'go list -m: can''t compute ''all'' using the vendor directory\n\t\(Use -mod=mod or -mod=readonly to bypass.\)'
+
+# An explicit -mod=mod should force the vendor directory to be ignored.
+env GOFLAGS=-mod=mod
+
+go list -f {{.Dir}} -tags tools all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$GOPATH'[/\\]pkg[/\\]mod[/\\]example.com[/\\]printversion@v1.0.0$'
+stdout '^'$WORK'[/\\]auto[/\\]replacement-version$'
+
+go list -m all
+stdout '^example.com/auto$'
+stdout 'example.com/printversion v1.0.0'
+stdout 'example.com/version v1.0.0'
+
+go list -m -f '{{.Dir}}' all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$GOPATH'[/\\]pkg[/\\]mod[/\\]example.com[/\\]printversion@v1.0.0$'
+stdout '^'$WORK'[/\\]auto[/\\]replacement-version$'
+
+# If the main module's "go" directive says 1.13, we should default to -mod=mod.
+env GOFLAGS=
+go mod edit -go=1.13
+
+go list -f {{.Dir}} -tags tools all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$GOPATH'[/\\]pkg[/\\]mod[/\\]example.com[/\\]printversion@v1.0.0$'
+stdout '^'$WORK'[/\\]auto[/\\]replacement-version$'
+
+go list -m -f '{{.Dir}}' all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$GOPATH'[/\\]pkg[/\\]mod[/\\]example.com[/\\]printversion@v1.0.0$'
+stdout '^'$WORK'[/\\]auto[/\\]replacement-version$'
+
+# A 'go 1.14' directive in the main module's go.mod file should enable
+# -mod=vendor by default, along with stronger checks for consistency
+# between the go.mod file and vendor/modules.txt.
+# A 'go 1.13' vendor/modules.txt file is not usually sufficient
+# to pass those checks.
+go mod edit -go=1.14
+
+! go list -f {{.Dir}} -tags tools all
+stderr '^go: inconsistent vendoring in '$WORK[/\\]auto':$'
+stderr '^\texample.com/printversion@v1.0.0: is explicitly required in go.mod, but not marked as explicit in vendor/modules.txt'
+stderr '^\texample.com/unused: is replaced in go.mod, but not marked as replaced in vendor/modules.txt'
+stderr '^\texample.com/version@v1.2.0: is replaced in go.mod, but not marked as replaced in vendor/modules.txt'
+stderr '\n\nrun .go mod vendor. to sync, or use -mod=mod or -mod=readonly to ignore the vendor directory$'
+
+# Module-specific subcommands should continue to load the full module graph.
+go mod graph
+stdout '^example.com/printversion@v1.0.0 example.com/version@v1.0.0$'
+
+# An explicit -mod=mod should still force the vendor directory to be ignored.
+env GOFLAGS=-mod=mod
+
+go list -f {{.Dir}} -tags tools all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$GOPATH'[/\\]pkg[/\\]mod[/\\]example.com[/\\]printversion@v1.0.0$'
+stdout '^'$WORK'[/\\]auto[/\\]replacement-version$'
+
+go list -m all
+stdout '^example.com/auto$'
+stdout 'example.com/printversion v1.0.0'
+stdout 'example.com/version v1.0.0'
+
+go list -m -f '{{.Dir}}' all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$GOPATH'[/\\]pkg[/\\]mod[/\\]example.com[/\\]printversion@v1.0.0$'
+stdout '^'$WORK'[/\\]auto[/\\]replacement-version$'
+
+# 'go mod vendor' should repair vendor/modules.txt so that the implicit
+# -mod=vendor works again.
+env GOFLAGS=
+
+go mod edit -go=1.14
+go mod vendor
+
+go list -f {{.Dir}} -tags tools all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]printversion$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]version$'
+
+# ...but 'go list -m' should continue to fail, this time without
+# referring to a -mod default that the user didn't set.
+! go list -m all
+stderr 'go list -m: can''t compute ''all'' using the vendor directory\n\t\(Use -mod=mod or -mod=readonly to bypass.\)'
+
+! go list -m -f '{{.Dir}}' all
+stderr 'go list -m: can''t compute ''all'' using the vendor directory\n\t\(Use -mod=mod or -mod=readonly to bypass.\)'
+
+
+# 'go mod init' should work if there is already a GOPATH-mode vendor directory
+# present. If there are no module dependencies, -mod=vendor should be used by
+# default and should not fail the consistency check even though no module
+# information is present.
+
+rm go.mod
+rm vendor/modules.txt
+
+go mod init example.com/auto
+go list -f {{.Dir}} -tags tools all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]printversion$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]version$'
+
+# If information about dependencies is added to a 1.14 go.mod file, subsequent
+# list commands should error out if vendor/modules.txt is missing or incomplete.
+
+cp go.mod.orig go.mod
+go mod edit -go=1.14
+! go list -f {{.Dir}} -tags tools all
+stderr '^go: inconsistent vendoring in '$WORK[/\\]auto':$'
+stderr '^\texample.com/printversion@v1.0.0: is explicitly required in go.mod, but not marked as explicit in vendor/modules.txt'
+stderr '^\texample.com/unused: is replaced in go.mod, but not marked as replaced in vendor/modules.txt'
+stderr '^\texample.com/version@v1.2.0: is replaced in go.mod, but not marked as replaced in vendor/modules.txt'
+stderr '\n\nrun .go mod vendor. to sync, or use -mod=mod or -mod=readonly to ignore the vendor directory$'
+
+# If -mod=vendor is set, limited consistency checks should apply even when
+# the go version is 1.13 or earlier.
+# An incomplete or missing vendor/modules.txt should resolve the vendored packages...
+go mod edit -go=1.13
+go list -mod=vendor -f {{.Dir}} -tags tools all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]printversion$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]version$'
+
+# ...but a version mismatch for an explicit dependency should be noticed.
+cp $WORK/modules-bad-1.13.txt vendor/modules.txt
+! go list -mod=vendor -f {{.Dir}} -tags tools all
+stderr '^go: inconsistent vendoring in '$WORK[/\\]auto':$'
+stderr '^\texample.com/printversion@v1.0.0: is explicitly required in go.mod, but vendor/modules.txt indicates example.com/printversion@v1.1.0$'
+stderr '\n\nrun .go mod vendor. to sync, or use -mod=mod or -mod=readonly to ignore the vendor directory$'
+
+# If the go version is still 1.13, 'go mod vendor' should write a
+# matching vendor/modules.txt containing the corrected 1.13 data.
+go mod vendor
+cmp $WORK/modules-1.13.txt vendor/modules.txt
+
+go list -mod=vendor -f {{.Dir}} -tags tools all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]printversion$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]version$'
+
+# When the version is upgraded to 1.14, 'go mod vendor' should write a
+# vendor/modules.txt with the updated 1.14 annotations.
+go mod edit -go=1.14
+go mod vendor
+cmp $WORK/modules-1.14.txt vendor/modules.txt
+
+# Then, -mod=vendor should kick in automatically and succeed.
+go list -f {{.Dir}} -tags tools all
+stdout '^'$WORK'[/\\]auto$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]printversion$'
+stdout '^'$WORK'[/\\]auto[/\\]vendor[/\\]example.com[/\\]version$'
+
+# 'go get' should update from the network or module cache,
+# even if a vendor directory is present.
+go get -u example.com/printversion
+! go list -f {{.Dir}} -tags tools all
+stderr '^go: inconsistent vendoring'
+
+-- $WORK/auto/go.mod --
+module example.com/auto
+
+go 1.13
+
+require example.com/printversion v1.0.0
+
+replace (
+	example.com/unused => nonexistent.example.com/unused v1.0.0-whatever
+	example.com/version v1.0.0 => ./replacement-version
+	example.com/version v1.2.0 => nonexistent.example.com/version v1.2.0
+)
+-- $WORK/auto/tools.go --
+// +build tools
+
+package auto
+
+import _ "example.com/printversion"
+-- $WORK/auto/auto.go --
+package auto
+-- $WORK/auto/replacement-version/go.mod --
+module example.com/version
+-- $WORK/auto/replacement-version/version.go --
+package version
+
+const V = "v1.0.0-replaced"
+-- $WORK/modules-1.14.txt --
+# example.com/printversion v1.0.0
+## explicit
+example.com/printversion
+# example.com/version v1.0.0 => ./replacement-version
+example.com/version
+# example.com/unused => nonexistent.example.com/unused v1.0.0-whatever
+# example.com/version v1.2.0 => nonexistent.example.com/version v1.2.0
+-- $WORK/modules-1.13.txt --
+# example.com/printversion v1.0.0
+example.com/printversion
+# example.com/version v1.0.0 => ./replacement-version
+example.com/version
+-- $WORK/modules-bad-1.13.txt --
+# example.com/printversion v1.1.0
+example.com/printversion
+# example.com/version v1.1.0
+example.com/version
+-- $WORK/auto/vendor/example.com/printversion/go.mod --
+module example.com/printversion
+
+require example.com/version v1.0.0
+replace example.com/version v1.0.0 => ../oops v0.0.0
+exclude example.com/version v1.0.1
+-- $WORK/auto/vendor/example.com/printversion/printversion.go --
+package main
+
+import (
+	"fmt"
+	"os"
+	"runtime/debug"
+
+	_ "example.com/version"
+)
+
+func main() {
+	info, _ := debug.ReadBuildInfo()
+	fmt.Fprintf(os.Stdout, "path is %s\n", info.Path)
+	fmt.Fprintf(os.Stdout, "main is %s %s\n", info.Main.Path, info.Main.Version)
+	for _, m := range info.Deps {
+		fmt.Fprintf(os.Stdout, "using %s %s\n", m.Path, m.Version)
+	}
+}
+-- $WORK/auto/vendor/example.com/version/version.go --
+package version
+
+const V = "v1.0.0-replaced"
diff --git a/libgo/go/cmd/go/testdata/script/mod_vendor_build.txt b/libgo/go/cmd/go/testdata/script/mod_vendor_build.txt
index 24920a3..0c359ce 100644
--- a/libgo/go/cmd/go/testdata/script/mod_vendor_build.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_vendor_build.txt
@@ -32,7 +32,7 @@
 
 -- go.mod --
 module m
-
+go 1.12
 -- x.go --
 package x
 import _ "rsc.io/quote"
diff --git a/libgo/go/cmd/go/testdata/script/mod_vendor_replace.txt b/libgo/go/cmd/go/testdata/script/mod_vendor_replace.txt
index 6bc1c77..0c1c1d2 100644
--- a/libgo/go/cmd/go/testdata/script/mod_vendor_replace.txt
+++ b/libgo/go/cmd/go/testdata/script/mod_vendor_replace.txt
@@ -1,7 +1,7 @@
 env GO111MODULE=on
 
 # Before vendoring, we expect to see the original directory.
-go list -f '{{.Version}} {{.Dir}}' -m rsc.io/quote/v3
+go list -f '{{with .Module}}{{.Version}}{{end}} {{.Dir}}' rsc.io/quote/v3
 stdout 'v3.0.0'
 stdout '.*[/\\]not-rsc.io[/\\]quote[/\\]v3'
 
@@ -15,12 +15,22 @@
 # without attempting to look up the non-replaced version.
 cmp vendor/rsc.io/quote/v3/quote.go local/not-rsc.io/quote/v3/quote.go
 
-go list -mod=vendor -f '{{.Version}} {{.Dir}}' -m rsc.io/quote/v3
+go list -mod=vendor -f '{{with .Module}}{{.Version}}{{end}} {{.Dir}}' rsc.io/quote/v3
 stdout 'v3.0.0'
 stdout '.*[/\\]vendor[/\\]rsc.io[/\\]quote[/\\]v3'
 ! stderr 'finding'
 ! stderr 'lookup disabled'
 
+# 'go list' should provide the original replacement directory as the module's
+# replacement path.
+go list -mod=vendor -f '{{with .Module}}{{with .Replace}}{{.Path}}{{end}}{{end}}' rsc.io/quote/v3
+stdout '.*[/\\]not-rsc.io[/\\]quote[/\\]v3'
+
+# The same module can't be used as two different paths.
+cd multiple-paths
+! go mod vendor
+stderr 'rsc.io/quote/v3@v3.0.0 used for two different module paths \(not-rsc.io/quote/v3 and rsc.io/quote/v3\)'
+
 -- go.mod --
 module example.com/replace
 
@@ -37,3 +47,20 @@
 
 -- local/not-rsc.io/quote/v3/quote.go --
 package quote
+
+-- multiple-paths/main.go --
+package main
+import (
+	"fmt"
+	"rsc.io/quote/v3"
+)
+func main() {
+	fmt.Println(quote.GoV3())
+}
+-- multiple-paths/go.mod --
+module quoter
+require (
+	rsc.io/quote/v3 v3.0.0
+	not-rsc.io/quote/v3 v3.0.0
+)
+replace not-rsc.io/quote/v3 => rsc.io/quote/v3 v3.0.0
diff --git a/libgo/go/cmd/go/testdata/script/mod_vendor_unused.txt b/libgo/go/cmd/go/testdata/script/mod_vendor_unused.txt
new file mode 100644
index 0000000..96251bb
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_vendor_unused.txt
@@ -0,0 +1,67 @@
+# Auxiliary test for inclusion of otherwise-unused replacements in
+# vendor/modules.txt for golang.org/issue/33848.
+# We need metadata about replacements in order to verify that modules.txt
+# remains in sync with the main module's go.mod file.
+
+env GO111MODULE=on
+
+go mod vendor
+cmp go1.14-modules.txt vendor/modules.txt
+
+-- go.mod --
+module example.com/foo
+go 1.14
+
+require (
+	example.com/a v0.1.0
+)
+
+replace (
+	example.com/a v0.1.0 => ./a
+	example.com/b v0.1.0 => ./b1
+	example.com/b v0.2.0-unused => ./b2
+	example.com/c => ./c
+	example.com/d v0.1.0 => ./d1
+	example.com/d v0.2.0 => ./d2
+	example.com/e => example.com/e v0.1.0-unused
+)
+-- foo.go --
+package foo
+import _ "example.com/a"
+-- a/go.mod --
+module example.com/a
+require (
+	example.com/b v0.1.0 // indirect
+	example.com/c v0.1.0 // indirect
+)
+-- a/a.go --
+package a
+import _ "example.com/d"
+-- b1/go.mod --
+module example.com/b
+require example.com/d v0.1.0
+-- b2/go.mod --
+module example.com/b
+require example.com/c v0.2.0
+-- c/go.mod --
+module example.com/c
+require example.com/d v0.2.0
+-- d1/go.mod --
+module example.com/d
+-- d1/d1.go --
+package d
+-- d2/go.mod --
+module example.com/d
+-- d2/d2.go --
+package d
+-- go1.14-modules.txt --
+# example.com/a v0.1.0 => ./a
+## explicit
+example.com/a
+# example.com/d v0.2.0 => ./d2
+example.com/d
+# example.com/b v0.1.0 => ./b1
+# example.com/b v0.2.0-unused => ./b2
+# example.com/c => ./c
+# example.com/d v0.1.0 => ./d1
+# example.com/e => example.com/e v0.1.0-unused
diff --git a/libgo/go/cmd/go/testdata/script/modfile_flag.txt b/libgo/go/cmd/go/testdata/script/modfile_flag.txt
new file mode 100644
index 0000000..1409be9
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/modfile_flag.txt
@@ -0,0 +1,84 @@
+# Tests the behavior of the -modfile flag in commands that support it.
+# The go.mod file exists but should not be read or written.
+# Same with go.sum.
+
+env GOFLAGS=-modfile=go.alt.mod
+cp go.mod go.mod.orig
+cp go.sum go.sum.orig
+
+
+# go mod init should create a new file, even though go.mod already exists.
+go mod init example.com/m
+grep example.com/m go.alt.mod
+
+# go mod edit should operate on the alternate file
+go mod edit -require rsc.io/quote@v1.5.2
+grep rsc.io/quote go.alt.mod
+
+# other 'go mod' commands should work. 'go mod vendor' is tested later.
+go mod download rsc.io/quote
+go mod graph
+stdout rsc.io/quote
+go mod tidy
+grep rsc.io/quote go.alt.sum
+go mod verify
+go mod why rsc.io/quote
+
+
+# 'go list' and other commands with build flags should work.
+# They should update the alternate go.mod when a dependency is missing.
+go mod edit -droprequire rsc.io/quote
+go list .
+grep rsc.io/quote go.alt.mod
+go build -n .
+go test -n .
+go get -d rsc.io/quote
+
+
+# 'go mod vendor' should work.
+go mod vendor
+exists vendor
+
+# Automatic vendoring should be broken by editing an explicit requirement
+# in the alternate go.mod file.
+go mod edit -require rsc.io/quote@v1.5.1
+! go list .
+go list -mod=mod
+rm vendor
+
+
+# 'go generate' should use the alternate file when resolving packages.
+# Recursive go commands started with 'go generate' should not get an explicitly
+# passed -modfile, but they should see arguments from GOFLAGS.
+cp go.alt.mod go.gen.mod
+env OLD_GOFLAGS=$GOFLAGS
+env GOFLAGS=-modfile=go.gen.mod
+go generate -modfile=go.alt.mod .
+env GOFLAGS=$OLD_GOFLAGS
+grep example.com/exclude go.gen.mod
+! grep example.com/exclude go.alt.mod
+
+
+# The original files should not have been modified.
+cmp go.mod go.mod.orig
+cmp go.sum go.sum.orig
+
+
+# If the altnernate mod file does not have a ".mod" suffix, an error
+# should be reported.
+cp go.alt.mod goaltmod
+! go mod tidy -modfile=goaltmod
+stderr '-modfile=goaltmod: file does not have .mod extension'
+
+-- go.mod --
+ʕ◔ϖ◔ʔ
+-- go.sum --
+ʕ◔ϖ◔ʔ
+-- use.go --
+package main
+
+import _ "rsc.io/quote"
+-- gen.go --
+//go:generate go mod edit -exclude example.com/exclude@v1.0.0
+
+package main
diff --git a/libgo/go/cmd/go/testdata/script/noncanonical_import.txt b/libgo/go/cmd/go/testdata/script/noncanonical_import.txt
new file mode 100644
index 0000000..7fdc071
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/noncanonical_import.txt
@@ -0,0 +1,21 @@
+env GO111MODULE=off
+
+! go build canonical/d
+stderr 'package canonical/d'
+stderr 'imports canonical/b'
+stderr 'imports canonical/a/: non-canonical'
+
+-- canonical/a/a.go --
+package a
+
+import _ "c"
+-- canonical/b/b.go --
+package b
+
+import _ "canonical/a/"
+-- canonical/a/vendor/c/c.go --
+package c
+-- canonical/d/d.go --
+package d
+
+import _ "canonical/b"
diff --git a/libgo/go/cmd/go/testdata/script/test_bad_example.txt b/libgo/go/cmd/go/testdata/script/test_bad_example.txt
new file mode 100644
index 0000000..1d147b6
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/test_bad_example.txt
@@ -0,0 +1,13 @@
+# Tests that invalid examples are ignored.
+# Verifies golang.org/issue/35284
+go test x_test.go
+
+-- x_test.go --
+package  x
+
+import "fmt"
+
+func ExampleThisShouldNotHaveAParameter(thisShouldntExist int) {
+	fmt.Println("X")
+	// Output:
+}
\ No newline at end of file
diff --git a/libgo/go/cmd/go/testdata/script/test_cache_inputs.txt b/libgo/go/cmd/go/testdata/script/test_cache_inputs.txt
new file mode 100644
index 0000000..46faca0
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/test_cache_inputs.txt
@@ -0,0 +1,230 @@
+env GO111MODULE=off
+
+# Test that cached test results are invalidated in response to
+# changes to the external inputs to the test.
+
+[short] skip
+[GODEBUG:gocacheverify=1] skip
+
+# We're testing cache behavior, so start with a clean GOCACHE.
+env GOCACHE=$WORK/cache
+
+# Build a helper binary to invoke os.Chtimes.
+go build -o mkold$GOEXE mkold.go
+
+# Make test input files appear to be a minute old.
+exec ./mkold$GOEXE 1m testcache/file.txt
+exec ./mkold$GOEXE 1m testcache/script.sh
+
+# If the test reads an environment variable, changes to that variable
+# should invalidate cached test results.
+env TESTKEY=x
+go test testcache -run=TestLookupEnv
+go test testcache -run=TestLookupEnv
+stdout '\(cached\)'
+
+env TESTKEY=y
+go test testcache -run=TestLookupEnv
+! stdout '\(cached\)'
+go test testcache -run=TestLookupEnv
+stdout '\(cached\)'
+
+# If the test stats a file, changes to the file should invalidate the cache.
+go test testcache -run=FileSize
+go test testcache -run=FileSize
+stdout '\(cached\)'
+
+cp 4x.txt testcache/file.txt
+go test testcache -run=FileSize
+! stdout '\(cached\)'
+go test testcache -run=FileSize
+stdout '\(cached\)'
+
+# Files should be tracked even if the test changes its working directory.
+go test testcache -run=Chdir
+go test testcache -run=Chdir
+stdout '\(cached\)'
+cp 6x.txt testcache/file.txt
+go test testcache -run=Chdir
+! stdout '\(cached\)'
+go test testcache -run=Chdir
+stdout '\(cached\)'
+
+# The content of files should affect caching, provided that the mtime also changes.
+exec ./mkold$GOEXE 1m testcache/file.txt
+go test testcache -run=FileContent
+go test testcache -run=FileContent
+stdout '\(cached\)'
+cp 2y.txt testcache/file.txt
+exec ./mkold$GOEXE 50s testcache/file.txt
+go test testcache -run=FileContent
+! stdout '\(cached\)'
+go test testcache -run=FileContent
+stdout '\(cached\)'
+
+# Directory contents read via os.ReadDirNames should affect caching.
+go test testcache -run=DirList
+go test testcache -run=DirList
+stdout '\(cached\)'
+rm testcache/file.txt
+go test testcache -run=DirList
+! stdout '\(cached\)'
+go test testcache -run=DirList
+stdout '\(cached\)'
+
+# Files outside GOROOT and GOPATH should not affect caching.
+env TEST_EXTERNAL_FILE=$WORK/external.txt
+go test testcache -run=ExternalFile
+go test testcache -run=ExternalFile
+stdout '\(cached\)'
+
+rm $WORK/external.txt
+go test testcache -run=ExternalFile
+stdout '\(cached\)'
+
+# Executables within GOROOT and GOPATH should affect caching,
+# even if the test does not stat them explicitly.
+
+[!exec:/bin/sh] skip
+chmod 0755 ./testcache/script.sh
+
+exec ./mkold$GOEXEC 1m testcache/script.sh
+go test testcache -run=Exec
+go test testcache -run=Exec
+stdout '\(cached\)'
+
+exec ./mkold$GOEXE 50s testcache/script.sh
+go test testcache -run=Exec
+! stdout '\(cached\)'
+go test testcache -run=Exec
+stdout '\(cached\)'
+
+-- testcache/file.txt --
+xx
+-- 4x.txt --
+xxxx
+-- 6x.txt --
+xxxxxx
+-- 2y.txt --
+yy
+-- $WORK/external.txt --
+This file is outside of GOPATH.
+-- testcache/script.sh --
+#!/bin/sh
+exit 0
+-- testcache/testcache_test.go --
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package testcache
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+func TestChdir(t *testing.T) {
+	os.Chdir("..")
+	defer os.Chdir("testcache")
+	info, err := os.Stat("testcache/file.txt")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if info.Size()%2 != 1 {
+		t.Fatal("even file")
+	}
+}
+
+func TestOddFileContent(t *testing.T) {
+	f, err := os.Open("file.txt")
+	if err != nil {
+		t.Fatal(err)
+	}
+	data, err := ioutil.ReadAll(f)
+	f.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(data)%2 != 1 {
+		t.Fatal("even file")
+	}
+}
+
+func TestOddFileSize(t *testing.T) {
+	info, err := os.Stat("file.txt")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if info.Size()%2 != 1 {
+		t.Fatal("even file")
+	}
+}
+
+func TestOddGetenv(t *testing.T) {
+	val := os.Getenv("TESTKEY")
+	if len(val)%2 != 1 {
+		t.Fatal("even env value")
+	}
+}
+
+func TestLookupEnv(t *testing.T) {
+	_, ok := os.LookupEnv("TESTKEY")
+	if !ok {
+		t.Fatal("env missing")
+	}
+}
+
+func TestDirList(t *testing.T) {
+	f, err := os.Open(".")
+	if err != nil {
+		t.Fatal(err)
+	}
+	f.Readdirnames(-1)
+	f.Close()
+}
+
+func TestExec(t *testing.T) {
+	// Note: not using os/exec to make sure there is no unexpected stat.
+	p, err := os.StartProcess("./script.sh", []string{"script"}, new(os.ProcAttr))
+	if err != nil {
+		t.Fatal(err)
+	}
+	ps, err := p.Wait()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !ps.Success() {
+		t.Fatalf("script failed: %v", err)
+	}
+}
+
+func TestExternalFile(t *testing.T) {
+	os.Open(os.Getenv("TEST_EXTERNAL_FILE"))
+	_, err := os.Stat(os.Getenv("TEST_EXTERNAL_FILE"))
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+-- mkold.go --
+package main
+
+import (
+	"log"
+	"os"
+	"time"
+)
+
+func main() {
+	d, err := time.ParseDuration(os.Args[1])
+	if err != nil {
+		log.Fatal(err)
+	}
+	path := os.Args[2]
+	old := time.Now().Add(-d)
+	err = os.Chtimes(path, old, old)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
diff --git a/libgo/go/cmd/go/testdata/script/test_compile_binary.txt b/libgo/go/cmd/go/testdata/script/test_compile_binary.txt
index 6562f24..63bb8ec 100644
--- a/libgo/go/cmd/go/testdata/script/test_compile_binary.txt
+++ b/libgo/go/cmd/go/testdata/script/test_compile_binary.txt
@@ -4,5 +4,5 @@
 stderr 'build comment'
 
 -- compile_binary/foo_test.go --
-//+build foo
+// +build foo
 package foo
diff --git a/libgo/go/cmd/go/testdata/script/test_compile_tempfile.txt b/libgo/go/cmd/go/testdata/script/test_compile_tempfile.txt
new file mode 100644
index 0000000..9124108
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/test_compile_tempfile.txt
@@ -0,0 +1,11 @@
+[short] skip
+
+# Ensure that the target of 'go build -o' can be an existing, empty file so that
+# its name can be reserved using ioutil.TempFile or the 'mktemp` command.
+
+go build -o empty-file$GOEXE main.go
+
+-- main.go --
+package main
+func main() {}
+-- empty-file$GOEXE --
diff --git a/libgo/go/cmd/go/testdata/script/test_devnull.txt b/libgo/go/cmd/go/testdata/script/test_devnull.txt
deleted file mode 100644
index 3307167..0000000
--- a/libgo/go/cmd/go/testdata/script/test_devnull.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-env GO111MODULE=off
-
-# go test -c -o NUL
-# should work (see golang.org/issue/28035).
-cd x
-go test -o=$devnull -c
-! exists x.test$GOEXE
-
--- x/x_test.go --
-package x_test
-import (
-    "testing"
-)
-func TestNUL(t *testing.T) {
-}
diff --git a/libgo/go/cmd/go/testdata/script/test_main_archive.txt b/libgo/go/cmd/go/testdata/script/test_main_archive.txt
new file mode 100644
index 0000000..410d923
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/test_main_archive.txt
@@ -0,0 +1,32 @@
+env GO111MODULE=off
+
+# Test that a main_test of 'package main' imports the package,
+# not the installed binary.
+
+[short] skip
+
+env GOBIN=$WORK/bin
+go test main_test
+go install main_test
+
+go list -f '{{.Stale}}' main_test
+stdout false
+
+go test main_test
+
+-- main_test/m.go --
+package main
+
+func F()    {}
+func main() {}
+-- main_test/m_test.go --
+package main_test
+
+import (
+	. "main_test"
+	"testing"
+)
+
+func Test1(t *testing.T) {
+	F()
+}
diff --git a/libgo/go/cmd/go/testdata/script/test_rebuildall.txt b/libgo/go/cmd/go/testdata/script/test_rebuildall.txt
new file mode 100644
index 0000000..38233c1
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/test_rebuildall.txt
@@ -0,0 +1,14 @@
+env GO111MODULE=off
+
+# Regression test for golang.org/issue/6844:
+# 'go test -a' should force dependencies in the standard library to be rebuilt.
+
+[short] skip
+
+go test -x -a -c testdata/dep_test.go
+stderr '^.*[/\\]compile'$GOEXE'["]? (.* )?regexp .*[/\\]regexp\.go'
+
+-- testdata/dep_test.go --
+package deps
+
+import _ "testing"
diff --git a/libgo/go/cmd/go/testdata/script/test_timeout.txt b/libgo/go/cmd/go/testdata/script/test_timeout.txt
index 8dead0a..4de4df4 100644
--- a/libgo/go/cmd/go/testdata/script/test_timeout.txt
+++ b/libgo/go/cmd/go/testdata/script/test_timeout.txt
@@ -2,12 +2,13 @@
 env GO111MODULE=off
 cd a
 
-# No timeout is passed via 'go test' command.
-go test -v
+# If no timeout is set explicitly, 'go test' should set
+# -test.timeout to its internal deadline.
+go test -v . --
 stdout '10m0s'
 
-# Timeout is passed via 'go test' command.
-go test -v -timeout 30m
+# An explicit -timeout argument should be propagated to -test.timeout.
+go test -v -timeout 30m . --
 stdout '30m0s'
 
 -- a/timeout_test.go --
@@ -19,4 +20,4 @@
 )
 func TestTimeout(t *testing.T) {
 	fmt.Println(flag.Lookup("test.timeout").Value.String())
-}
\ No newline at end of file
+}
diff --git a/libgo/go/cmd/go/testdata/script/version.txt b/libgo/go/cmd/go/testdata/script/version.txt
index 9086f04..4252624 100644
--- a/libgo/go/cmd/go/testdata/script/version.txt
+++ b/libgo/go/cmd/go/testdata/script/version.txt
@@ -1,6 +1,7 @@
 env GO111MODULE=on
 [short] skip
 
+# Check that 'go version' and 'go version -m' work on a binary built in module mode.
 go build -o fortune.exe rsc.io/fortune
 go version fortune.exe
 stdout '^fortune.exe: .+'
@@ -8,6 +9,10 @@
 stdout '^\tpath\trsc.io/fortune'
 stdout '^\tmod\trsc.io/fortune\tv1.0.0'
 
+# Repeat the test with -buildmode=pie.
+# TODO(golang.org/issue/27144): don't skip after -buildmode=pie is implemented
+# on Windows.
+[windows] skip # -buildmode=pie not supported
 go build -buildmode=pie -o external.exe rsc.io/fortune
 go version external.exe
 stdout '^external.exe: .+'
diff --git a/libgo/go/cmd/go/testdata/script/vet_flags.txt b/libgo/go/cmd/go/testdata/script/vet_flags.txt
new file mode 100644
index 0000000..94bfd12
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/vet_flags.txt
@@ -0,0 +1,37 @@
+env GO111MODULE=on
+
+# gccgo doesn't support vet on the standard library
+[gccgo] skip
+
+# Regression test for issue 35837: "go vet -<analyzer> <std package>"
+# did not apply the requested analyzer.
+go vet -n -unreachable=false encoding/binary
+stderr '-unreachable=false'
+! stderr '-unsafeptr=false'
+
+[short] stop
+env GOCACHE=$WORK/gocache
+env GOTMPDIR=$WORK/tmp
+go env GOTMPDIR
+stdout '/tmp'
+
+# "go test" on a user package should by default enable an explicit whitelist of analyzers.
+go test -x -run=none .
+stderr '[/\\]vet'$GOEXE'["]? .* -errorsas .* ["]?\$WORK[/\\][^ ]*[/\\]vet\.cfg'
+
+# "go test" on a standard package should by default disable an explicit blacklist.
+go test -x -run=none encoding/binary
+stderr '[/\\]vet'$GOEXE'["]? -unsafeptr=false ["]?\$WORK[/\\][^ ]*[/\\]vet\.cfg'
+
+# Both should allow users to override via the -vet flag.
+go test -x -vet=unreachable -run=none .
+stderr '[/\\]vet'$GOEXE'["]? -unreachable ["]?\$WORK[/\\][^ ]*[/\\]vet\.cfg'
+go test -x -vet=unreachable -run=none encoding/binary
+stderr '[/\\]vet'$GOEXE'["]? -unreachable ["]?\$WORK[/\\][^ ]*[/\\]vet\.cfg'
+
+-- go.mod --
+module example.com/x
+-- x.go --
+package x
+-- x_test.go --
+package x
diff --git a/libgo/go/cmd/go/testdata/src/canonical/a/a.go b/libgo/go/cmd/go/testdata/src/canonical/a/a.go
deleted file mode 100644
index 486cc48..0000000
--- a/libgo/go/cmd/go/testdata/src/canonical/a/a.go
+++ /dev/null
@@ -1,3 +0,0 @@
-package a
-
-import _ "c"
diff --git a/libgo/go/cmd/go/testdata/src/canonical/a/vendor/c/c.go b/libgo/go/cmd/go/testdata/src/canonical/a/vendor/c/c.go
deleted file mode 100644
index 7f96c22..0000000
--- a/libgo/go/cmd/go/testdata/src/canonical/a/vendor/c/c.go
+++ /dev/null
@@ -1 +0,0 @@
-package c
diff --git a/libgo/go/cmd/go/testdata/src/canonical/b/b.go b/libgo/go/cmd/go/testdata/src/canonical/b/b.go
deleted file mode 100644
index ce0f4ce..0000000
--- a/libgo/go/cmd/go/testdata/src/canonical/b/b.go
+++ /dev/null
@@ -1,3 +0,0 @@
-package b
-
-import _ "canonical/a/"
diff --git a/libgo/go/cmd/go/testdata/src/canonical/d/d.go b/libgo/go/cmd/go/testdata/src/canonical/d/d.go
deleted file mode 100644
index ef7dd7d..0000000
--- a/libgo/go/cmd/go/testdata/src/canonical/d/d.go
+++ /dev/null
@@ -1,3 +0,0 @@
-package d
-
-import _ "canonical/b"
diff --git a/libgo/go/cmd/go/testdata/src/go-cmd-test/helloworld.go b/libgo/go/cmd/go/testdata/src/go-cmd-test/helloworld.go
deleted file mode 100644
index 002a5c7..0000000
--- a/libgo/go/cmd/go/testdata/src/go-cmd-test/helloworld.go
+++ /dev/null
@@ -1,5 +0,0 @@
-package main
-
-func main() {
-	println("hello world")
-}
diff --git a/libgo/go/cmd/go/testdata/src/main_test/m.go b/libgo/go/cmd/go/testdata/src/main_test/m.go
deleted file mode 100644
index c682f03..0000000
--- a/libgo/go/cmd/go/testdata/src/main_test/m.go
+++ /dev/null
@@ -1,4 +0,0 @@
-package main
-
-func F()    {}
-func main() {}
diff --git a/libgo/go/cmd/go/testdata/src/main_test/m_test.go b/libgo/go/cmd/go/testdata/src/main_test/m_test.go
deleted file mode 100644
index f865b77..0000000
--- a/libgo/go/cmd/go/testdata/src/main_test/m_test.go
+++ /dev/null
@@ -1,10 +0,0 @@
-package main_test
-
-import (
-	. "main_test"
-	"testing"
-)
-
-func Test1(t *testing.T) {
-	F()
-}
diff --git a/libgo/go/cmd/go/testdata/src/testcache/testcache_test.go b/libgo/go/cmd/go/testdata/src/testcache/testcache_test.go
deleted file mode 100644
index 9b2d1ea..0000000
--- a/libgo/go/cmd/go/testdata/src/testcache/testcache_test.go
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package testcache
-
-import (
-	"io/ioutil"
-	"os"
-	"runtime"
-	"testing"
-)
-
-func TestChdir(t *testing.T) {
-	os.Chdir("..")
-	defer os.Chdir("testcache")
-	info, err := os.Stat("testcache/file.txt")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if info.Size()%2 != 1 {
-		t.Fatal("even file")
-	}
-}
-
-func TestOddFileContent(t *testing.T) {
-	f, err := os.Open("file.txt")
-	if err != nil {
-		t.Fatal(err)
-	}
-	data, err := ioutil.ReadAll(f)
-	f.Close()
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(data)%2 != 1 {
-		t.Fatal("even file")
-	}
-}
-
-func TestOddFileSize(t *testing.T) {
-	info, err := os.Stat("file.txt")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if info.Size()%2 != 1 {
-		t.Fatal("even file")
-	}
-}
-
-func TestOddGetenv(t *testing.T) {
-	val := os.Getenv("TESTKEY")
-	if len(val)%2 != 1 {
-		t.Fatal("even env value")
-	}
-}
-
-func TestLookupEnv(t *testing.T) {
-	_, ok := os.LookupEnv("TESTKEY")
-	if !ok {
-		t.Fatal("env missing")
-	}
-}
-
-func TestDirList(t *testing.T) {
-	f, err := os.Open(".")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Readdirnames(-1)
-	f.Close()
-}
-
-func TestExec(t *testing.T) {
-	if runtime.GOOS == "plan9" || runtime.GOOS == "windows" || runtime.GOOS == "nacl" {
-		t.Skip("non-unix")
-	}
-
-	// Note: not using os/exec to make sure there is no unexpected stat.
-	p, err := os.StartProcess("./script.sh", []string{"script"}, new(os.ProcAttr))
-	if err != nil {
-		t.Fatal(err)
-	}
-	ps, err := p.Wait()
-	if err != nil {
-		t.Fatal(err)
-	}
-	if !ps.Success() {
-		t.Fatalf("script failed: %v", err)
-	}
-}
diff --git a/libgo/go/cmd/gofmt/gofmt.go b/libgo/go/cmd/gofmt/gofmt.go
index d7a77a9..9e472b2 100644
--- a/libgo/go/cmd/gofmt/gofmt.go
+++ b/libgo/go/cmd/gofmt/gofmt.go
@@ -16,11 +16,12 @@
 	"io"
 	"io/ioutil"
 	"os"
-	"os/exec"
 	"path/filepath"
 	"runtime"
 	"runtime/pprof"
 	"strings"
+
+	"cmd/internal/diff"
 )
 
 var (
@@ -141,7 +142,7 @@
 			}
 		}
 		if *doDiff {
-			data, err := diff(src, res, filename)
+			data, err := diffWithReplaceTempFile(src, res, filename)
 			if err != nil {
 				return fmt.Errorf("computing diff: %s", err)
 			}
@@ -227,47 +228,12 @@
 	}
 }
 
-func writeTempFile(dir, prefix string, data []byte) (string, error) {
-	file, err := ioutil.TempFile(dir, prefix)
-	if err != nil {
-		return "", err
-	}
-	_, err = file.Write(data)
-	if err1 := file.Close(); err == nil {
-		err = err1
-	}
-	if err != nil {
-		os.Remove(file.Name())
-		return "", err
-	}
-	return file.Name(), nil
-}
-
-func diff(b1, b2 []byte, filename string) (data []byte, err error) {
-	f1, err := writeTempFile("", "gofmt", b1)
-	if err != nil {
-		return
-	}
-	defer os.Remove(f1)
-
-	f2, err := writeTempFile("", "gofmt", b2)
-	if err != nil {
-		return
-	}
-	defer os.Remove(f2)
-
-	cmd := "diff"
-	if runtime.GOOS == "plan9" {
-		cmd = "/bin/ape/diff"
-	}
-
-	data, err = exec.Command(cmd, "-u", f1, f2).CombinedOutput()
+func diffWithReplaceTempFile(b1, b2 []byte, filename string) ([]byte, error) {
+	data, err := diff.Diff("gofmt", b1, b2)
 	if len(data) > 0 {
-		// diff exits with a non-zero status when the files don't match.
-		// Ignore that failure as long as we get output.
 		return replaceTempFilename(data, filename)
 	}
-	return
+	return data, err
 }
 
 // replaceTempFilename replaces temporary filenames in diff with actual one.
diff --git a/libgo/go/cmd/gofmt/gofmt_test.go b/libgo/go/cmd/gofmt/gofmt_test.go
index 3008365..98d3eb7 100644
--- a/libgo/go/cmd/gofmt/gofmt_test.go
+++ b/libgo/go/cmd/gofmt/gofmt_test.go
@@ -112,7 +112,7 @@
 		}
 
 		t.Errorf("(gofmt %s) != %s (see %s.gofmt)", in, out, in)
-		d, err := diff(expected, got, in)
+		d, err := diffWithReplaceTempFile(expected, got, in)
 		if err == nil {
 			t.Errorf("%s", d)
 		}
@@ -194,7 +194,7 @@
 	in := []byte("first\nsecond\n")
 	out := []byte("first\nthird\n")
 	filename := "difftest.txt"
-	b, err := diff(in, out, filename)
+	b, err := diffWithReplaceTempFile(in, out, filename)
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/libgo/go/cmd/gofmt/rewrite.go b/libgo/go/cmd/gofmt/rewrite.go
index 79b7858..bab22e0 100644
--- a/libgo/go/cmd/gofmt/rewrite.go
+++ b/libgo/go/cmd/gofmt/rewrite.go
@@ -271,6 +271,12 @@
 	// Otherwise copy.
 	switch p := pattern; p.Kind() {
 	case reflect.Slice:
+		if p.IsNil() {
+			// Do not turn nil slices into empty slices. go/ast
+			// guarantees that certain lists will be nil if not
+			// populated.
+			return reflect.Zero(p.Type())
+		}
 		v := reflect.MakeSlice(p.Type(), p.Len(), p.Len())
 		for i := 0; i < p.Len(); i++ {
 			v.Index(i).Set(subst(m, p.Index(i), pos))
diff --git a/libgo/go/cmd/gofmt/testdata/import.golden b/libgo/go/cmd/gofmt/testdata/import.golden
index 29bdc9b..1125b70 100644
--- a/libgo/go/cmd/gofmt/testdata/import.golden
+++ b/libgo/go/cmd/gofmt/testdata/import.golden
@@ -1,3 +1,4 @@
+// package comment
 package main
 
 import (
@@ -10,11 +11,6 @@
 
 import (
 	"fmt"
-	"math"
-)
-
-import (
-	"fmt"
 
 	"math"
 
@@ -25,6 +21,10 @@
 	"io"
 )
 
+// We reset the line numbering to test that
+// the formatting works independent of line directives
+//line :19
+
 import (
 	"errors"
 	"fmt"
@@ -129,3 +129,66 @@
 
 	"dedup_by_group"
 )
+
+import (
+	"fmt" // for Printf
+	/* comment */ io1 "io"
+	/* comment */ io2 "io"
+	/* comment */ "log"
+)
+
+import (
+	"fmt"
+	/* comment */ io1 "io"
+	/* comment */ io2 "io" // hello
+	"math"                 /* right side */
+	// end
+)
+
+import (
+	"errors" // for New
+	"fmt"
+	/* comment */ io1 "io" /* before */ // after
+	io2 "io"               // another
+	// end
+)
+
+import (
+	"errors" // for New
+	/* left */ "fmt" /* right */
+	"log"            // for Fatal
+	/* left */ "math" /* right */
+)
+
+import /* why */ /* comment here? */ (
+	/* comment */ "fmt"
+	"math"
+)
+
+// Reset it again
+//line :100
+
+// Dedup with different import styles
+import (
+	"path"
+	. "path"
+	_ "path"
+	pathpkg "path"
+)
+
+/* comment */
+import (
+	"fmt"
+	"math" // for Abs
+	// This is a new run
+	"errors"
+	"fmt"
+)
+
+// End an import declaration in the same line
+// as the last import. See golang.org/issue/33538.
+// Note: Must be the last (or 2nd last) line of the file.
+import (
+	"fmt"
+	"math"
+)
diff --git a/libgo/go/cmd/gofmt/testdata/import.input b/libgo/go/cmd/gofmt/testdata/import.input
index 78ab4f6..040b872 100644
--- a/libgo/go/cmd/gofmt/testdata/import.input
+++ b/libgo/go/cmd/gofmt/testdata/import.input
@@ -1,3 +1,4 @@
+// package comment
 package main
 
 import (
@@ -8,9 +9,6 @@
 	"io"
 )
 
-import("fmt"
-"math")
-
 import (
 	"fmt"
 
@@ -23,6 +21,10 @@
 	"io"
 )
 
+// We reset the line numbering to test that
+// the formatting works independent of line directives
+//line :19
+
 import (
 	"fmt"
 	"math"
@@ -132,3 +134,66 @@
 
 	"dedup_by_group"
 )
+
+import (
+	/* comment */ io1 "io"
+	"fmt" // for Printf
+	/* comment */ "log"
+	/* comment */ io2 "io"
+)
+
+import (
+	/* comment */ io2 "io" // hello
+	/* comment */ io1 "io"
+	"math" /* right side */
+	"fmt"
+	// end
+)
+
+import (
+	/* comment */ io1 "io" /* before */ // after
+	"fmt"
+	"errors" // for New
+	io2 "io" // another
+	// end
+)
+
+import (
+	/* left */ "fmt" /* right */
+	"errors" // for New
+	/* left */ "math" /* right */
+	"log" // for Fatal
+)
+
+import /* why */ /* comment here? */ (
+	/* comment */ "fmt"
+	"math"
+)
+
+// Reset it again
+//line :100
+
+// Dedup with different import styles
+import (
+	"path"
+	. "path"
+	_ "path"
+	"path"
+	pathpkg "path"
+)
+
+/* comment */
+import (
+	"math" // for Abs
+	"fmt"
+	// This is a new run
+	"errors"
+	"fmt"
+	"errors"
+)
+
+// End an import declaration in the same line
+// as the last import. See golang.org/issue/33538.
+// Note: Must be the last (or 2nd last) line of the file.
+import("fmt"
+"math")
\ No newline at end of file
diff --git a/libgo/go/cmd/gofmt/testdata/issue28082.golden b/libgo/go/cmd/gofmt/testdata/issue28082.golden
new file mode 100644
index 0000000..5837fd5
--- /dev/null
+++ b/libgo/go/cmd/gofmt/testdata/issue28082.golden
@@ -0,0 +1,13 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+// testcase for issue #28082
+
+func foo() {}
+
+func main() {}
+
+func bar() {}
diff --git a/libgo/go/cmd/gofmt/testdata/issue28082.input b/libgo/go/cmd/gofmt/testdata/issue28082.input
new file mode 100644
index 0000000..ab7d218
--- /dev/null
+++ b/libgo/go/cmd/gofmt/testdata/issue28082.input
@@ -0,0 +1,13 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+// testcase for issue #28082
+
+func foo(                                                                                                ) {}
+
+func main(                                                                                                      ) {}
+
+func bar() {}
diff --git a/libgo/go/cmd/gofmt/testdata/rewrite10.golden b/libgo/go/cmd/gofmt/testdata/rewrite10.golden
new file mode 100644
index 0000000..1dd781f
--- /dev/null
+++ b/libgo/go/cmd/gofmt/testdata/rewrite10.golden
@@ -0,0 +1,19 @@
+//gofmt -r=a->a
+
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Issue 33103, 33104, and 33105.
+
+package pkg
+
+func fn() {
+	_ = func() {
+		switch {
+		default:
+		}
+	}
+	_ = func() string {}
+	_ = func() { var ptr *string; println(ptr) }
+}
diff --git a/libgo/go/cmd/gofmt/testdata/rewrite10.input b/libgo/go/cmd/gofmt/testdata/rewrite10.input
new file mode 100644
index 0000000..1dd781f
--- /dev/null
+++ b/libgo/go/cmd/gofmt/testdata/rewrite10.input
@@ -0,0 +1,19 @@
+//gofmt -r=a->a
+
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Issue 33103, 33104, and 33105.
+
+package pkg
+
+func fn() {
+	_ = func() {
+		switch {
+		default:
+		}
+	}
+	_ = func() string {}
+	_ = func() { var ptr *string; println(ptr) }
+}
diff --git a/libgo/go/cmd/internal/buildid/buildid_test.go b/libgo/go/cmd/internal/buildid/buildid_test.go
index 15481dd..904c2c6 100644
--- a/libgo/go/cmd/internal/buildid/buildid_test.go
+++ b/libgo/go/cmd/internal/buildid/buildid_test.go
@@ -7,6 +7,7 @@
 import (
 	"bytes"
 	"crypto/sha256"
+	"internal/obscuretestdata"
 	"io/ioutil"
 	"os"
 	"reflect"
@@ -19,13 +20,6 @@
 )
 
 func TestReadFile(t *testing.T) {
-	var files = []string{
-		"p.a",
-		"a.elf",
-		"a.macho",
-		"a.pe",
-	}
-
 	f, err := ioutil.TempFile("", "buildid-test-")
 	if err != nil {
 		t.Fatal(err)
@@ -34,26 +28,43 @@
 	defer os.Remove(tmp)
 	f.Close()
 
-	for _, f := range files {
-		id, err := ReadFile("testdata/" + f)
+	// Use obscured files to prevent Apple’s notarization service from
+	// mistaking them as candidates for notarization and rejecting the entire
+	// toolchain.
+	// See golang.org/issue/34986
+	var files = []string{
+		"p.a.base64",
+		"a.elf.base64",
+		"a.macho.base64",
+		"a.pe.base64",
+	}
+
+	for _, name := range files {
+		f, err := obscuretestdata.DecodeToTempFile("testdata/" + name)
+		if err != nil {
+			t.Errorf("obscuretestdata.DecodeToTempFile(testdata/%s): %v", name, err)
+			continue
+		}
+		defer os.Remove(f)
+		id, err := ReadFile(f)
 		if id != expectedID || err != nil {
 			t.Errorf("ReadFile(testdata/%s) = %q, %v, want %q, nil", f, id, err, expectedID)
 		}
 		old := readSize
 		readSize = 2048
-		id, err = ReadFile("testdata/" + f)
+		id, err = ReadFile(f)
 		readSize = old
 		if id != expectedID || err != nil {
-			t.Errorf("ReadFile(testdata/%s) [readSize=2k] = %q, %v, want %q, nil", f, id, err, expectedID)
+			t.Errorf("ReadFile(%s) [readSize=2k] = %q, %v, want %q, nil", f, id, err, expectedID)
 		}
 
-		data, err := ioutil.ReadFile("testdata/" + f)
+		data, err := ioutil.ReadFile(f)
 		if err != nil {
 			t.Fatal(err)
 		}
 		m, _, err := FindAndHash(bytes.NewReader(data), expectedID, 1024)
 		if err != nil {
-			t.Errorf("FindAndHash(testdata/%s): %v", f, err)
+			t.Errorf("FindAndHash(%s): %v", f, err)
 			continue
 		}
 		if err := ioutil.WriteFile(tmp, data, 0666); err != nil {
@@ -68,7 +79,7 @@
 		err = Rewrite(tf, m, newID)
 		err2 := tf.Close()
 		if err != nil {
-			t.Errorf("Rewrite(testdata/%s): %v", f, err)
+			t.Errorf("Rewrite(%s): %v", f, err)
 			continue
 		}
 		if err2 != nil {
@@ -77,7 +88,7 @@
 
 		id, err = ReadFile(tmp)
 		if id != newID || err != nil {
-			t.Errorf("ReadFile(testdata/%s after Rewrite) = %q, %v, want %q, nil", f, id, err, newID)
+			t.Errorf("ReadFile(%s after Rewrite) = %q, %v, want %q, nil", f, id, err, newID)
 		}
 	}
 }
diff --git a/libgo/go/cmd/internal/buildid/testdata/a.elf b/libgo/go/cmd/internal/buildid/testdata/a.elf
deleted file mode 100755
index f631289..0000000
--- a/libgo/go/cmd/internal/buildid/testdata/a.elf
+++ /dev/null
Binary files differ
diff --git a/libgo/go/cmd/internal/buildid/testdata/a.elf.base64 b/libgo/go/cmd/internal/buildid/testdata/a.elf.base64
new file mode 100644
index 0000000..fa85521
--- /dev/null
+++ b/libgo/go/cmd/internal/buildid/testdata/a.elf.base64
@@ -0,0 +1 @@
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diff --git a/libgo/go/cmd/internal/buildid/testdata/a.macho b/libgo/go/cmd/internal/buildid/testdata/a.macho
deleted file mode 100755
index fbbd57c..0000000
--- a/libgo/go/cmd/internal/buildid/testdata/a.macho
+++ /dev/null
Binary files differ
diff --git a/libgo/go/cmd/internal/buildid/testdata/a.macho.base64 b/libgo/go/cmd/internal/buildid/testdata/a.macho.base64
new file mode 100644
index 0000000..2e9f6a7
--- /dev/null
+++ b/libgo/go/cmd/internal/buildid/testdata/a.macho.base64
@@ -0,0 +1 @@
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diff --git a/libgo/go/cmd/internal/buildid/testdata/a.pe b/libgo/go/cmd/internal/buildid/testdata/a.pe
deleted file mode 100755
index 9120272..0000000
--- a/libgo/go/cmd/internal/buildid/testdata/a.pe
+++ /dev/null
Binary files differ
diff --git a/libgo/go/cmd/internal/buildid/testdata/a.pe.base64 b/libgo/go/cmd/internal/buildid/testdata/a.pe.base64
new file mode 100644
index 0000000..d3a31a3
--- /dev/null
+++ b/libgo/go/cmd/internal/buildid/testdata/a.pe.base64
@@ -0,0 +1 @@
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diff --git a/libgo/go/cmd/internal/buildid/testdata/p.a b/libgo/go/cmd/internal/buildid/testdata/p.a
deleted file mode 100644
index dcc3e76..0000000
--- a/libgo/go/cmd/internal/buildid/testdata/p.a
+++ /dev/null
Binary files differ
diff --git a/libgo/go/cmd/internal/buildid/testdata/p.a.base64 b/libgo/go/cmd/internal/buildid/testdata/p.a.base64
new file mode 100644
index 0000000..ba96c10
--- /dev/null
+++ b/libgo/go/cmd/internal/buildid/testdata/p.a.base64
@@ -0,0 +1 @@
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diff --git a/libgo/go/cmd/internal/diff/diff.go b/libgo/go/cmd/internal/diff/diff.go
new file mode 100644
index 0000000..e9d2c23
--- /dev/null
+++ b/libgo/go/cmd/internal/diff/diff.go
@@ -0,0 +1,58 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package diff implements a Diff function that compare two inputs
+// using the 'diff' tool.
+package diff
+
+import (
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"runtime"
+)
+
+// Returns diff of two arrays of bytes in diff tool format.
+func Diff(prefix string, b1, b2 []byte) ([]byte, error) {
+	f1, err := writeTempFile(prefix, b1)
+	if err != nil {
+		return nil, err
+	}
+	defer os.Remove(f1)
+
+	f2, err := writeTempFile(prefix, b2)
+	if err != nil {
+		return nil, err
+	}
+	defer os.Remove(f2)
+
+	cmd := "diff"
+	if runtime.GOOS == "plan9" {
+		cmd = "/bin/ape/diff"
+	}
+
+	data, err := exec.Command(cmd, "-u", f1, f2).CombinedOutput()
+	if len(data) > 0 {
+		// diff exits with a non-zero status when the files don't match.
+		// Ignore that failure as long as we get output.
+		err = nil
+	}
+	return data, err
+}
+
+func writeTempFile(prefix string, data []byte) (string, error) {
+	file, err := ioutil.TempFile("", prefix)
+	if err != nil {
+		return "", err
+	}
+	_, err = file.Write(data)
+	if err1 := file.Close(); err == nil {
+		err = err1
+	}
+	if err != nil {
+		os.Remove(file.Name())
+		return "", err
+	}
+	return file.Name(), nil
+}
diff --git a/libgo/go/cmd/internal/objabi/doc.go b/libgo/go/cmd/internal/objabi/doc.go
index 03dc9fb..08e922b 100644
--- a/libgo/go/cmd/internal/objabi/doc.go
+++ b/libgo/go/cmd/internal/objabi/doc.go
@@ -22,10 +22,12 @@
 //
 // The file format is:
 //
-//	- magic header: "\x00go112ld"
+//	- magic header: "\x00go114ld"
 //	- byte 1 - version number
 //	- sequence of strings giving dependencies (imported packages)
 //	- empty string (marks end of sequence)
+//	- number of entries in the following sequence
+//	- sequence of filename strings to generate debug information
 //	- sequence of symbol references used by the defined symbols
 //	- byte 0xff (marks end of sequence)
 //	- sequence of integer lengths:
@@ -38,7 +40,7 @@
 //	- data, the content of the defined symbols
 //	- sequence of defined symbols
 //	- byte 0xff (marks end of sequence)
-//	- magic footer: "\xffgo112ld"
+//	- magic footer: "\xffgo114ld"
 //
 // All integers are stored in a zigzag varint format.
 // See golang.org/s/go12symtab for a definition.
diff --git a/libgo/go/cmd/internal/objabi/funcdata.go b/libgo/go/cmd/internal/objabi/funcdata.go
index addbd2a..08b75eb 100644
--- a/libgo/go/cmd/internal/objabi/funcdata.go
+++ b/libgo/go/cmd/internal/objabi/funcdata.go
@@ -15,11 +15,12 @@
 	PCDATA_StackMapIndex = 1
 	PCDATA_InlTreeIndex  = 2
 
-	FUNCDATA_ArgsPointerMaps   = 0
-	FUNCDATA_LocalsPointerMaps = 1
-	FUNCDATA_RegPointerMaps    = 2
-	FUNCDATA_StackObjects      = 3
-	FUNCDATA_InlTree           = 4
+	FUNCDATA_ArgsPointerMaps    = 0
+	FUNCDATA_LocalsPointerMaps  = 1
+	FUNCDATA_RegPointerMaps     = 2
+	FUNCDATA_StackObjects       = 3
+	FUNCDATA_InlTree            = 4
+	FUNCDATA_OpenCodedDeferInfo = 5
 
 	// ArgsSizeUnknown is set in Func.argsize to mark all functions
 	// whose argument size is unknown (C vararg functions, and
diff --git a/libgo/go/cmd/internal/objabi/funcid.go b/libgo/go/cmd/internal/objabi/funcid.go
index a30bc3f..0fda1db 100644
--- a/libgo/go/cmd/internal/objabi/funcid.go
+++ b/libgo/go/cmd/internal/objabi/funcid.go
@@ -37,6 +37,8 @@
 	FuncID_debugCallV1
 	FuncID_gopanic
 	FuncID_panicwrap
+	FuncID_handleAsyncEvent
+	FuncID_asyncPreempt
 	FuncID_wrapper // any autogenerated code (hash/eq algorithms, method wrappers, etc.)
 )
 
@@ -82,6 +84,19 @@
 		return FuncID_gopanic
 	case "runtime.panicwrap":
 		return FuncID_panicwrap
+	case "runtime.handleAsyncEvent":
+		return FuncID_handleAsyncEvent
+	case "runtime.asyncPreempt":
+		return FuncID_asyncPreempt
+	case "runtime.deferreturn":
+		// Don't show in the call stack (used when invoking defer functions)
+		return FuncID_wrapper
+	case "runtime.runOpenDeferFrame":
+		// Don't show in the call stack (used when invoking defer functions)
+		return FuncID_wrapper
+	case "runtime.reflectcallSave":
+		// Don't show in the call stack (used when invoking defer functions)
+		return FuncID_wrapper
 	}
 	if file == "<autogenerated>" {
 		return FuncID_wrapper
diff --git a/libgo/go/cmd/internal/objabi/head.go b/libgo/go/cmd/internal/objabi/head.go
index 0a54228..6836c33 100644
--- a/libgo/go/cmd/internal/objabi/head.go
+++ b/libgo/go/cmd/internal/objabi/head.go
@@ -42,7 +42,6 @@
 	Hfreebsd
 	Hjs
 	Hlinux
-	Hnacl
 	Hnetbsd
 	Hopenbsd
 	Hplan9
@@ -65,8 +64,6 @@
 		*h = Hjs
 	case "linux", "android":
 		*h = Hlinux
-	case "nacl":
-		*h = Hnacl
 	case "netbsd":
 		*h = Hnetbsd
 	case "openbsd":
@@ -97,8 +94,6 @@
 		return "js"
 	case Hlinux:
 		return "linux"
-	case Hnacl:
-		return "nacl"
 	case Hnetbsd:
 		return "netbsd"
 	case Hopenbsd:
diff --git a/libgo/go/cmd/internal/objabi/reloctype.go b/libgo/go/cmd/internal/objabi/reloctype.go
index 5dc9356..dc64828 100644
--- a/libgo/go/cmd/internal/objabi/reloctype.go
+++ b/libgo/go/cmd/internal/objabi/reloctype.go
@@ -64,6 +64,8 @@
 	// R_CALLMIPS (only used on mips64) resolves to non-PC-relative target address
 	// of a CALL (JAL) instruction, by encoding the address into the instruction.
 	R_CALLMIPS
+	// R_CALLRISCV marks RISC-V CALLs for stack checking.
+	R_CALLRISCV
 	R_CONST
 	R_PCREL
 	// R_TLS_LE, used on 386, amd64, and ARM, resolves to the offset of the
@@ -200,6 +202,16 @@
 	// relocated symbol rather than the symbol's address.
 	R_ADDRPOWER_TOCREL_DS
 
+	// RISC-V.
+
+	// R_RISCV_PCREL_ITYPE resolves a 32-bit PC-relative address using an
+	// AUIPC + I-type instruction pair.
+	R_RISCV_PCREL_ITYPE
+
+	// R_RISCV_PCREL_STYPE resolves a 32-bit PC-relative address using an
+	// AUIPC + S-type instruction pair.
+	R_RISCV_PCREL_STYPE
+
 	// R_PCRELDBL relocates s390x 2-byte aligned PC-relative addresses.
 	// TODO(mundaym): remove once variants can be serialized - see issue 14218.
 	R_PCRELDBL
@@ -210,6 +222,7 @@
 	// R_ADDRMIPSTLS (only used on mips64) resolves to the low 16 bits of a TLS
 	// address (offset from thread pointer), by encoding it into the instruction.
 	R_ADDRMIPSTLS
+
 	// R_ADDRCUOFF resolves to a pointer-sized offset from the start of the
 	// symbol's DWARF compile unit.
 	R_ADDRCUOFF
@@ -223,16 +236,34 @@
 	R_XCOFFREF
 )
 
-// IsDirectJump reports whether r is a relocation for a direct jump.
-// A direct jump is a CALL or JMP instruction that takes the target address
-// as immediate. The address is embedded into the instruction, possibly
-// with limited width.
-// An indirect jump is a CALL or JMP instruction that takes the target address
-// in register or memory.
-func (r RelocType) IsDirectJump() bool {
+// IsDirectCall reports whether r is a relocation for a direct call.
+// A direct call is a CALL instruction that takes the target address
+// as an immediate. The address is embedded into the instruction, possibly
+// with limited width. An indirect call is a CALL instruction that takes
+// the target address in register or memory.
+func (r RelocType) IsDirectCall() bool {
 	switch r {
-	case R_CALL, R_CALLARM, R_CALLARM64, R_CALLPOWER, R_CALLMIPS, R_JMPMIPS:
+	case R_CALL, R_CALLARM, R_CALLARM64, R_CALLMIPS, R_CALLPOWER, R_CALLRISCV:
 		return true
 	}
 	return false
 }
+
+// IsDirectJump reports whether r is a relocation for a direct jump.
+// A direct jump is a JMP instruction that takes the target address
+// as an immediate. The address is embedded into the instruction, possibly
+// with limited width. An indirect jump is a JMP instruction that takes
+// the target address in register or memory.
+func (r RelocType) IsDirectJump() bool {
+	switch r {
+	case R_JMPMIPS:
+		return true
+	}
+	return false
+}
+
+// IsDirectCallOrJump reports whether r is a relocation for a direct
+// call or a direct jump.
+func (r RelocType) IsDirectCallOrJump() bool {
+	return r.IsDirectCall() || r.IsDirectJump()
+}
diff --git a/libgo/go/cmd/internal/objabi/reloctype_string.go b/libgo/go/cmd/internal/objabi/reloctype_string.go
index a1c4c1a..83dfe71 100644
--- a/libgo/go/cmd/internal/objabi/reloctype_string.go
+++ b/libgo/go/cmd/internal/objabi/reloctype_string.go
@@ -4,9 +4,9 @@
 
 import "strconv"
 
-const _RelocType_name = "R_ADDRR_ADDRPOWERR_ADDRARM64R_ADDRMIPSR_ADDROFFR_WEAKADDROFFR_SIZER_CALLR_CALLARMR_CALLARM64R_CALLINDR_CALLPOWERR_CALLMIPSR_CONSTR_PCRELR_TLS_LER_TLS_IER_GOTOFFR_PLT0R_PLT1R_PLT2R_USEFIELDR_USETYPER_METHODOFFR_POWER_TOCR_GOTPCRELR_JMPMIPSR_DWARFSECREFR_DWARFFILEREFR_ARM64_TLS_LER_ARM64_TLS_IER_ARM64_GOTPCRELR_ARM64_GOTR_ARM64_PCRELR_ARM64_LDST8R_ARM64_LDST32R_ARM64_LDST64R_ARM64_LDST128R_POWER_TLS_LER_POWER_TLS_IER_POWER_TLSR_ADDRPOWER_DSR_ADDRPOWER_GOTR_ADDRPOWER_PCRELR_ADDRPOWER_TOCRELR_ADDRPOWER_TOCREL_DSR_PCRELDBLR_ADDRMIPSUR_ADDRMIPSTLSR_ADDRCUOFFR_WASMIMPORTR_XCOFFREF"
+const _RelocType_name = "R_ADDRR_ADDRPOWERR_ADDRARM64R_ADDRMIPSR_ADDROFFR_WEAKADDROFFR_SIZER_CALLR_CALLARMR_CALLARM64R_CALLINDR_CALLPOWERR_CALLMIPSR_CALLRISCVR_CONSTR_PCRELR_TLS_LER_TLS_IER_GOTOFFR_PLT0R_PLT1R_PLT2R_USEFIELDR_USETYPER_METHODOFFR_POWER_TOCR_GOTPCRELR_JMPMIPSR_DWARFSECREFR_DWARFFILEREFR_ARM64_TLS_LER_ARM64_TLS_IER_ARM64_GOTPCRELR_ARM64_GOTR_ARM64_PCRELR_ARM64_LDST8R_ARM64_LDST32R_ARM64_LDST64R_ARM64_LDST128R_POWER_TLS_LER_POWER_TLS_IER_POWER_TLSR_ADDRPOWER_DSR_ADDRPOWER_GOTR_ADDRPOWER_PCRELR_ADDRPOWER_TOCRELR_ADDRPOWER_TOCREL_DSR_RISCV_PCREL_ITYPER_RISCV_PCREL_STYPER_PCRELDBLR_ADDRMIPSUR_ADDRMIPSTLSR_ADDRCUOFFR_WASMIMPORTR_XCOFFREF"
 
-var _RelocType_index = [...]uint16{0, 6, 17, 28, 38, 47, 60, 66, 72, 81, 92, 101, 112, 122, 129, 136, 144, 152, 160, 166, 172, 178, 188, 197, 208, 219, 229, 238, 251, 265, 279, 293, 309, 320, 333, 346, 360, 374, 389, 403, 417, 428, 442, 457, 474, 492, 513, 523, 534, 547, 558, 570, 580}
+var _RelocType_index = [...]uint16{0, 6, 17, 28, 38, 47, 60, 66, 72, 81, 92, 101, 112, 122, 133, 140, 147, 155, 163, 171, 177, 183, 189, 199, 208, 219, 230, 240, 249, 262, 276, 290, 304, 320, 331, 344, 357, 371, 385, 400, 414, 428, 439, 453, 468, 485, 503, 524, 543, 562, 572, 583, 596, 607, 619, 629}
 
 func (i RelocType) String() string {
 	i -= 1
diff --git a/libgo/go/cmd/internal/objabi/stack.go b/libgo/go/cmd/internal/objabi/stack.go
index 62ab039..7320dbf 100644
--- a/libgo/go/cmd/internal/objabi/stack.go
+++ b/libgo/go/cmd/internal/objabi/stack.go
@@ -18,7 +18,7 @@
 )
 
 // Initialize StackGuard and StackLimit according to target system.
-var StackGuard = 880*stackGuardMultiplier() + StackSystem
+var StackGuard = 896*stackGuardMultiplier() + StackSystem
 var StackLimit = StackGuard - StackSystem - StackSmall
 
 // stackGuardMultiplier returns a multiplier to apply to the default
diff --git a/libgo/go/cmd/internal/objabi/symkind.go b/libgo/go/cmd/internal/objabi/symkind.go
index 16b4c53..69f1528 100644
--- a/libgo/go/cmd/internal/objabi/symkind.go
+++ b/libgo/go/cmd/internal/objabi/symkind.go
@@ -59,7 +59,7 @@
 	SDWARFINFO
 	SDWARFRANGE
 	SDWARFLOC
-	SDWARFMISC
+	SDWARFLINES
 	// ABI alias. An ABI alias symbol is an empty symbol with a
 	// single relocation with 0 size that references the native
 	// function implementation symbol.
@@ -67,6 +67,8 @@
 	// TODO(austin): Remove this and all uses once the compiler
 	// generates real ABI wrappers rather than symbol aliases.
 	SABIALIAS
+	// Coverage instrumentation counter for libfuzzer.
+	SLIBFUZZER_EXTRA_COUNTER
 	// Update cmd/link/internal/sym/AbiSymKindToSymKind for new SymKind values.
 
 )
diff --git a/libgo/go/cmd/internal/objabi/util.go b/libgo/go/cmd/internal/objabi/util.go
index bf71b6b..0e7693e 100644
--- a/libgo/go/cmd/internal/objabi/util.go
+++ b/libgo/go/cmd/internal/objabi/util.go
@@ -127,7 +127,7 @@
 }
 
 func Framepointer_enabled(goos, goarch string) bool {
-	return framepointer_enabled != 0 && (goarch == "amd64" && goos != "nacl" || goarch == "arm64" && goos == "linux")
+	return framepointer_enabled != 0 && (goarch == "amd64" || goarch == "arm64" && goos == "linux")
 }
 
 func addexp(s string) {
diff --git a/libgo/go/cmd/internal/sys/arch.go b/libgo/go/cmd/internal/sys/arch.go
index 487c926..e868736 100644
--- a/libgo/go/cmd/internal/sys/arch.go
+++ b/libgo/go/cmd/internal/sys/arch.go
@@ -7,8 +7,7 @@
 import "encoding/binary"
 
 // ArchFamily represents a family of one or more related architectures.
-// For example, amd64 and amd64p32 are both members of the AMD64 family,
-// and ppc64 and ppc64le are both members of the PPC64 family.
+// For example, ppc64 and ppc64le are both members of the PPC64 family.
 type ArchFamily byte
 
 const (
@@ -20,6 +19,7 @@
 	MIPS
 	MIPS64
 	PPC64
+	RISCV64
 	S390X
 	Wasm
 )
@@ -71,15 +71,6 @@
 	MinLC:     1,
 }
 
-var ArchAMD64P32 = &Arch{
-	Name:      "amd64p32",
-	Family:    AMD64,
-	ByteOrder: binary.LittleEndian,
-	PtrSize:   4,
-	RegSize:   8,
-	MinLC:     1,
-}
-
 var ArchARM = &Arch{
 	Name:      "arm",
 	Family:    ARM,
@@ -152,6 +143,15 @@
 	MinLC:     4,
 }
 
+var ArchRISCV64 = &Arch{
+	Name:      "riscv64",
+	Family:    RISCV64,
+	ByteOrder: binary.LittleEndian,
+	PtrSize:   8,
+	RegSize:   8,
+	MinLC:     4,
+}
+
 var ArchS390X = &Arch{
 	Name:      "s390x",
 	Family:    S390X,
@@ -173,7 +173,6 @@
 var Archs = [...]*Arch{
 	Arch386,
 	ArchAMD64,
-	ArchAMD64P32,
 	ArchARM,
 	ArchARM64,
 	ArchMIPS,
@@ -182,6 +181,7 @@
 	ArchMIPS64LE,
 	ArchPPC64,
 	ArchPPC64LE,
+	ArchRISCV64,
 	ArchS390X,
 	ArchWasm,
 }
diff --git a/libgo/go/cmd/internal/sys/supported.go b/libgo/go/cmd/internal/sys/supported.go
index 4162858..02f833e 100644
--- a/libgo/go/cmd/internal/sys/supported.go
+++ b/libgo/go/cmd/internal/sys/supported.go
@@ -43,3 +43,71 @@
 	}
 	return false
 }
+
+// BuildModeSupported reports whether goos/goarch supports the given build mode
+// using the given compiler.
+func BuildModeSupported(compiler, buildmode, goos, goarch string) bool {
+	if compiler == "gccgo" {
+		return true
+	}
+
+	platform := goos + "/" + goarch
+
+	switch buildmode {
+	case "archive":
+		return true
+
+	case "c-archive":
+		// TODO(bcmills): This seems dubious.
+		// Do we really support c-archive mode on js/wasm‽
+		return platform != "linux/ppc64"
+
+	case "c-shared":
+		switch platform {
+		case "linux/amd64", "linux/arm", "linux/arm64", "linux/386", "linux/ppc64le", "linux/s390x",
+			"android/amd64", "android/arm", "android/arm64", "android/386",
+			"freebsd/amd64",
+			"darwin/amd64", "darwin/386",
+			"windows/amd64", "windows/386":
+			return true
+		}
+		return false
+
+	case "default":
+		return true
+
+	case "exe":
+		return true
+
+	case "pie":
+		switch platform {
+		case "linux/386", "linux/amd64", "linux/arm", "linux/arm64", "linux/ppc64le", "linux/s390x",
+			"android/amd64", "android/arm", "android/arm64", "android/386",
+			"freebsd/amd64",
+			"darwin/amd64",
+			"aix/ppc64":
+			return true
+		}
+		return false
+
+	case "shared":
+		switch platform {
+		case "linux/386", "linux/amd64", "linux/arm", "linux/arm64", "linux/ppc64le", "linux/s390x":
+			return true
+		}
+		return false
+
+	case "plugin":
+		switch platform {
+		case "linux/amd64", "linux/arm", "linux/arm64", "linux/386", "linux/s390x", "linux/ppc64le",
+			"android/amd64", "android/arm", "android/arm64", "android/386",
+			"darwin/amd64",
+			"freebsd/amd64":
+			return true
+		}
+		return false
+
+	default:
+		return false
+	}
+}
diff --git a/libgo/go/cmd/vet/testdata/asm/asm.go b/libgo/go/cmd/vet/testdata/asm/asm.go
index 72ff452..1e60d8b 100644
--- a/libgo/go/cmd/vet/testdata/asm/asm.go
+++ b/libgo/go/cmd/vet/testdata/asm/asm.go
@@ -7,3 +7,5 @@
 package testdata
 
 func arg1(x int8, y uint8)
+
+func cpx(x complex64, y complex128)
diff --git a/libgo/go/cmd/vet/testdata/asm/asm1.s b/libgo/go/cmd/vet/testdata/asm/asm1.s
new file mode 100644
index 0000000..a5bb6dd
--- /dev/null
+++ b/libgo/go/cmd/vet/testdata/asm/asm1.s
@@ -0,0 +1,23 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build amd64
+
+TEXT ·arg1(SB),0,$0-2
+	MOVW	x+0(FP), AX // ERROR "\[amd64\] arg1: invalid MOVW of x\+0\(FP\); int8 is 1-byte value"
+
+TEXT ·cpx(SB),0,$0-24
+	// These are ok
+	MOVSS	x_real+0(FP), X0
+	MOVSS	x_imag+4(FP), X0
+	MOVSD	y_real+8(FP), X0
+	MOVSD	y_imag+16(FP), X0
+	// Loading both parts of a complex is ok: see issue 35264.
+	MOVSD	x+0(FP), X0
+	MOVO	y+8(FP), X0
+	MOVOU	y+8(FP), X0
+
+	// These are not ok.
+	MOVO	x+0(FP), X0 // ERROR "\[amd64\] cpx: invalid MOVO of x\+0\(FP\); complex64 is 8-byte value containing x_real\+0\(FP\) and x_imag\+4\(FP\)"
+	MOVSD	y+8(FP), X0 // ERROR "\[amd64\] cpx: invalid MOVSD of y\+8\(FP\); complex128 is 16-byte value containing y_real\+8\(FP\) and y_imag\+16\(FP\)"
diff --git a/libgo/go/cmd/vet/testdata/print/print.go b/libgo/go/cmd/vet/testdata/print/print.go
index 7a4783a..fca5949 100644
--- a/libgo/go/cmd/vet/testdata/print/print.go
+++ b/libgo/go/cmd/vet/testdata/print/print.go
@@ -81,8 +81,8 @@
 	fmt.Printf("%T %T", 3, i)
 	fmt.Printf("%U %U", 3, i)
 	fmt.Printf("%v %v", 3, i)
-	fmt.Printf("%x %x %x %x", 3, i, "hi", s)
-	fmt.Printf("%X %X %X %X", 3, i, "hi", s)
+	fmt.Printf("%x %x %x %x %x %x %x", 3, i, "hi", s, x, c, fslice)
+	fmt.Printf("%X %X %X %X %X %X %X", 3, i, "hi", s, x, c, fslice)
 	fmt.Printf("%.*s %d %g", 3, "hi", 23, 2.3)
 	fmt.Printf("%s", &stringerv)
 	fmt.Printf("%v", &stringerv)
@@ -125,7 +125,6 @@
 	fmt.Printf("%t", 23)                        // ERROR "Printf format %t has arg 23 of wrong type int"
 	fmt.Printf("%U", x)                         // ERROR "Printf format %U has arg x of wrong type float64"
 	fmt.Printf("%x", nil)                       // ERROR "Printf format %x has arg nil of wrong type untyped nil"
-	fmt.Printf("%X", 2.3)                       // ERROR "Printf format %X has arg 2.3 of wrong type float64"
 	fmt.Printf("%s", stringerv)                 // ERROR "Printf format %s has arg stringerv of wrong type .*print.ptrStringer"
 	fmt.Printf("%t", stringerv)                 // ERROR "Printf format %t has arg stringerv of wrong type .*print.ptrStringer"
 	fmt.Printf("%s", embeddedStringerv)         // ERROR "Printf format %s has arg embeddedStringerv of wrong type .*print.embeddedStringer"
diff --git a/libgo/go/cmd/vet/testdata/src/asm/asm1.s b/libgo/go/cmd/vet/testdata/src/asm/asm1.s
deleted file mode 100644
index c3ba986..0000000
--- a/libgo/go/cmd/vet/testdata/src/asm/asm1.s
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64
-
-TEXT ·arg1(SB),0,$0-2
-	MOVW	x+0(FP), AX // ERROR "\[amd64\] arg1: invalid MOVW of x\+0\(FP\); int8 is 1-byte value"
diff --git a/libgo/go/compress/flate/deflate.go b/libgo/go/compress/flate/deflate.go
index 8b92f15..5500321 100644
--- a/libgo/go/compress/flate/deflate.go
+++ b/libgo/go/compress/flate/deflate.go
@@ -465,17 +465,20 @@
 				} else {
 					newIndex = d.index + prevLength - 1
 				}
-				for d.index++; d.index < newIndex; d.index++ {
-					if d.index < d.maxInsertIndex {
-						d.hash = hash4(d.window[d.index : d.index+minMatchLength])
+				index := d.index
+				for index++; index < newIndex; index++ {
+					if index < d.maxInsertIndex {
+						d.hash = hash4(d.window[index : index+minMatchLength])
 						// Get previous value with the same hash.
 						// Our chain should point to the previous value.
 						hh := &d.hashHead[d.hash&hashMask]
-						d.hashPrev[d.index&windowMask] = *hh
+						d.hashPrev[index&windowMask] = *hh
 						// Set the head of the hash chain to us.
-						*hh = uint32(d.index + d.hashOffset)
+						*hh = uint32(index + d.hashOffset)
 					}
 				}
+				d.index = index
+
 				if d.fastSkipHashing == skipNever {
 					d.byteAvailable = false
 					d.length = minMatchLength - 1
diff --git a/libgo/go/compress/gzip/gunzip_test.go b/libgo/go/compress/gzip/gunzip_test.go
index fdea0c5..1b01404 100644
--- a/libgo/go/compress/gzip/gunzip_test.go
+++ b/libgo/go/compress/gzip/gunzip_test.go
@@ -7,6 +7,7 @@
 import (
 	"bytes"
 	"compress/flate"
+	"encoding/base64"
 	"io"
 	"io/ioutil"
 	"os"
@@ -413,11 +414,16 @@
 }
 
 func TestIssue6550(t *testing.T) {
-	f, err := os.Open("testdata/issue6550.gz")
+	// Apple’s notarization service will recursively attempt to decompress
+	// files in order to find binaries to notarize. Since the service is
+	// unable to decompress this file, it may reject the entire toolchain. Use a
+	// base64-encoded version to avoid this.
+	// See golang.org/issue/34986
+	f, err := os.Open("testdata/issue6550.gz.base64")
 	if err != nil {
 		t.Fatal(err)
 	}
-	gzip, err := NewReader(f)
+	gzip, err := NewReader(base64.NewDecoder(base64.StdEncoding, f))
 	if err != nil {
 		t.Fatalf("NewReader(testdata/issue6550.gz): %v", err)
 	}
diff --git a/libgo/go/compress/gzip/testdata/issue6550.gz b/libgo/go/compress/gzip/testdata/issue6550.gz
deleted file mode 100644
index 82b4af1..0000000
--- a/libgo/go/compress/gzip/testdata/issue6550.gz
+++ /dev/null
Binary files differ
diff --git a/libgo/go/compress/gzip/testdata/issue6550.gz.base64 b/libgo/go/compress/gzip/testdata/issue6550.gz.base64
new file mode 100644
index 0000000..f2509ff
--- /dev/null
+++ b/libgo/go/compress/gzip/testdata/issue6550.gz.base64
@@ -0,0 +1 @@
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
diff --git a/libgo/go/compress/lzw/reader.go b/libgo/go/compress/lzw/reader.go
index 1be52d5..f080211 100644
--- a/libgo/go/compress/lzw/reader.go
+++ b/libgo/go/compress/lzw/reader.go
@@ -63,8 +63,7 @@
 	//
 	// last is the most recently seen code, or decoderInvalidCode.
 	//
-	// An invariant is that
-	// (hi < overflow) || (hi == overflow && last == decoderInvalidCode)
+	// An invariant is that hi < overflow.
 	clear, eof, hi, overflow, last uint16
 
 	// Each code c in [lo, hi] expands to two or more bytes. For c != hi:
@@ -200,15 +199,18 @@
 		}
 		d.last, d.hi = code, d.hi+1
 		if d.hi >= d.overflow {
+			if d.hi > d.overflow {
+				panic("unreachable")
+			}
 			if d.width == maxWidth {
 				d.last = decoderInvalidCode
 				// Undo the d.hi++ a few lines above, so that (1) we maintain
-				// the invariant that d.hi <= d.overflow, and (2) d.hi does not
+				// the invariant that d.hi < d.overflow, and (2) d.hi does not
 				// eventually overflow a uint16.
 				d.hi--
 			} else {
 				d.width++
-				d.overflow <<= 1
+				d.overflow = 1 << d.width
 			}
 		}
 		if d.o >= flushBuffer {
diff --git a/libgo/go/context/context.go b/libgo/go/context/context.go
index 6259085..b561968 100644
--- a/libgo/go/context/context.go
+++ b/libgo/go/context/context.go
@@ -51,6 +51,7 @@
 	"errors"
 	"internal/reflectlite"
 	"sync"
+	"sync/atomic"
 	"time"
 )
 
@@ -67,6 +68,8 @@
 	// Done returns a channel that's closed when work done on behalf of this
 	// context should be canceled. Done may return nil if this context can
 	// never be canceled. Successive calls to Done return the same value.
+	// The close of the Done channel may happen asynchronously,
+	// after the cancel function returns.
 	//
 	// WithCancel arranges for Done to be closed when cancel is called;
 	// WithDeadline arranges for Done to be closed when the deadline
@@ -237,11 +240,24 @@
 	return cancelCtx{Context: parent}
 }
 
+// goroutines counts the number of goroutines ever created; for testing.
+var goroutines int32
+
 // propagateCancel arranges for child to be canceled when parent is.
 func propagateCancel(parent Context, child canceler) {
-	if parent.Done() == nil {
+	done := parent.Done()
+	if done == nil {
 		return // parent is never canceled
 	}
+
+	select {
+	case <-done:
+		// parent is already canceled
+		child.cancel(false, parent.Err())
+		return
+	default:
+	}
+
 	if p, ok := parentCancelCtx(parent); ok {
 		p.mu.Lock()
 		if p.err != nil {
@@ -255,6 +271,7 @@
 		}
 		p.mu.Unlock()
 	} else {
+		atomic.AddInt32(&goroutines, +1)
 		go func() {
 			select {
 			case <-parent.Done():
@@ -265,22 +282,31 @@
 	}
 }
 
-// parentCancelCtx follows a chain of parent references until it finds a
-// *cancelCtx. This function understands how each of the concrete types in this
-// package represents its parent.
+// &cancelCtxKey is the key that a cancelCtx returns itself for.
+var cancelCtxKey int
+
+// parentCancelCtx returns the underlying *cancelCtx for parent.
+// It does this by looking up parent.Value(&cancelCtxKey) to find
+// the innermost enclosing *cancelCtx and then checking whether
+// parent.Done() matches that *cancelCtx. (If not, the *cancelCtx
+// has been wrapped in a custom implementation providing a
+// different done channel, in which case we should not bypass it.)
 func parentCancelCtx(parent Context) (*cancelCtx, bool) {
-	for {
-		switch c := parent.(type) {
-		case *cancelCtx:
-			return c, true
-		case *timerCtx:
-			return &c.cancelCtx, true
-		case *valueCtx:
-			parent = c.Context
-		default:
-			return nil, false
-		}
+	done := parent.Done()
+	if done == closedchan || done == nil {
+		return nil, false
 	}
+	p, ok := parent.Value(&cancelCtxKey).(*cancelCtx)
+	if !ok {
+		return nil, false
+	}
+	p.mu.Lock()
+	ok = p.done == done
+	p.mu.Unlock()
+	if !ok {
+		return nil, false
+	}
+	return p, true
 }
 
 // removeChild removes a context from its parent.
@@ -321,6 +347,13 @@
 	err      error                 // set to non-nil by the first cancel call
 }
 
+func (c *cancelCtx) Value(key interface{}) interface{} {
+	if key == &cancelCtxKey {
+		return c
+	}
+	return c.Context.Value(key)
+}
+
 func (c *cancelCtx) Done() <-chan struct{} {
 	c.mu.Lock()
 	if c.done == nil {
diff --git a/libgo/go/context/context_test.go b/libgo/go/context/context_test.go
index b07a5cf..cff09fd 100644
--- a/libgo/go/context/context_test.go
+++ b/libgo/go/context/context_test.go
@@ -10,6 +10,7 @@
 	"runtime"
 	"strings"
 	"sync"
+	"sync/atomic"
 	"time"
 )
 
@@ -21,6 +22,7 @@
 	Failed() bool
 	Fatal(args ...interface{})
 	Fatalf(format string, args ...interface{})
+	Helper()
 	Log(args ...interface{})
 	Logf(format string, args ...interface{})
 	Name() string
@@ -251,6 +253,7 @@
 }
 
 func testDeadline(c Context, name string, failAfter time.Duration, t testingT) {
+	t.Helper()
 	select {
 	case <-time.After(failAfter):
 		t.Fatalf("%s: context should have timed out", name)
@@ -401,8 +404,8 @@
 				c, _ := WithTimeout(bg, 15*time.Millisecond)
 				<-c.Done()
 			},
-			limit:      8,
-			gccgoLimit: 18,
+			limit:      12,
+			gccgoLimit: 15,
 		},
 		{
 			desc: "WithCancel(bg)",
@@ -648,3 +651,81 @@
 		t.Fatal("wrong value for timeout")
 	}
 }
+
+type myCtx struct {
+	Context
+}
+
+type myDoneCtx struct {
+	Context
+}
+
+func (d *myDoneCtx) Done() <-chan struct{} {
+	c := make(chan struct{})
+	return c
+}
+
+func XTestCustomContextGoroutines(t testingT) {
+	g := atomic.LoadInt32(&goroutines)
+	checkNoGoroutine := func() {
+		t.Helper()
+		now := atomic.LoadInt32(&goroutines)
+		if now != g {
+			t.Fatalf("%d goroutines created", now-g)
+		}
+	}
+	checkCreatedGoroutine := func() {
+		t.Helper()
+		now := atomic.LoadInt32(&goroutines)
+		if now != g+1 {
+			t.Fatalf("%d goroutines created, want 1", now-g)
+		}
+		g = now
+	}
+
+	_, cancel0 := WithCancel(&myDoneCtx{Background()})
+	cancel0()
+	checkCreatedGoroutine()
+
+	_, cancel0 = WithTimeout(&myDoneCtx{Background()}, 1*time.Hour)
+	cancel0()
+	checkCreatedGoroutine()
+
+	checkNoGoroutine()
+	defer checkNoGoroutine()
+
+	ctx1, cancel1 := WithCancel(Background())
+	defer cancel1()
+	checkNoGoroutine()
+
+	ctx2 := &myCtx{ctx1}
+	ctx3, cancel3 := WithCancel(ctx2)
+	defer cancel3()
+	checkNoGoroutine()
+
+	_, cancel3b := WithCancel(&myDoneCtx{ctx2})
+	defer cancel3b()
+	checkCreatedGoroutine() // ctx1 is not providing Done, must not be used
+
+	ctx4, cancel4 := WithTimeout(ctx3, 1*time.Hour)
+	defer cancel4()
+	checkNoGoroutine()
+
+	ctx5, cancel5 := WithCancel(ctx4)
+	defer cancel5()
+	checkNoGoroutine()
+
+	cancel5()
+	checkNoGoroutine()
+
+	_, cancel6 := WithTimeout(ctx5, 1*time.Hour)
+	defer cancel6()
+	checkNoGoroutine()
+
+	// Check applied to cancelled context.
+	cancel6()
+	cancel1()
+	_, cancel7 := WithCancel(ctx5)
+	defer cancel7()
+	checkNoGoroutine()
+}
diff --git a/libgo/go/context/x_test.go b/libgo/go/context/x_test.go
index d14b6f1..e85ef2d 100644
--- a/libgo/go/context/x_test.go
+++ b/libgo/go/context/x_test.go
@@ -27,3 +27,4 @@
 func TestWithCancelCanceledParent(t *testing.T)        { XTestWithCancelCanceledParent(t) }
 func TestWithValueChecksKey(t *testing.T)              { XTestWithValueChecksKey(t) }
 func TestDeadlineExceededSupportsTimeout(t *testing.T) { XTestDeadlineExceededSupportsTimeout(t) }
+func TestCustomContextGoroutines(t *testing.T)         { XTestCustomContextGoroutines(t) }
diff --git a/libgo/go/crypto/aes/gcm_ppc64le.go b/libgo/go/crypto/aes/gcm_ppc64le.go
new file mode 100644
index 0000000..707478c
--- /dev/null
+++ b/libgo/go/crypto/aes/gcm_ppc64le.go
@@ -0,0 +1,258 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+// +build ppc64le
+
+package aes
+
+import (
+	"crypto/cipher"
+	"crypto/subtle"
+	"encoding/binary"
+	"errors"
+)
+
+// This file implements GCM using an optimized GHASH function.
+
+//go:noescape
+func gcmInit(productTable *[256]byte, h []byte)
+
+//go:noescape
+func gcmHash(output []byte, productTable *[256]byte, inp []byte, len int)
+
+//go:noescape
+func gcmMul(output []byte, productTable *[256]byte)
+
+const (
+	gcmCounterSize       = 16
+	gcmBlockSize         = 16
+	gcmTagSize           = 16
+	gcmStandardNonceSize = 12
+)
+
+var errOpen = errors.New("cipher: message authentication failed")
+
+// Assert that aesCipherGCM implements the gcmAble interface.
+var _ gcmAble = (*aesCipherAsm)(nil)
+
+type gcmAsm struct {
+	cipher *aesCipherAsm
+	// ks is the key schedule, the length of which depends on the size of
+	// the AES key.
+	ks []uint32
+	// productTable contains pre-computed multiples of the binary-field
+	// element used in GHASH.
+	productTable [256]byte
+	// nonceSize contains the expected size of the nonce, in bytes.
+	nonceSize int
+	// tagSize contains the size of the tag, in bytes.
+	tagSize int
+}
+
+// NewGCM returns the AES cipher wrapped in Galois Counter Mode. This is only
+// called by crypto/cipher.NewGCM via the gcmAble interface.
+func (c *aesCipherAsm) NewGCM(nonceSize, tagSize int) (cipher.AEAD, error) {
+	g := &gcmAsm{cipher: c, ks: c.enc, nonceSize: nonceSize, tagSize: tagSize}
+
+	hle := make([]byte, gcmBlockSize)
+	c.Encrypt(hle, hle)
+
+	// Reverse the bytes in each 8 byte chunk
+	// Load little endian, store big endian
+	h1 := binary.LittleEndian.Uint64(hle[:8])
+	h2 := binary.LittleEndian.Uint64(hle[8:])
+	binary.BigEndian.PutUint64(hle[:8], h1)
+	binary.BigEndian.PutUint64(hle[8:], h2)
+	gcmInit(&g.productTable, hle)
+
+	return g, nil
+}
+
+func (g *gcmAsm) NonceSize() int {
+	return g.nonceSize
+}
+
+func (g *gcmAsm) Overhead() int {
+	return g.tagSize
+}
+
+func sliceForAppend(in []byte, n int) (head, tail []byte) {
+	if total := len(in) + n; cap(in) >= total {
+		head = in[:total]
+	} else {
+		head = make([]byte, total)
+		copy(head, in)
+	}
+	tail = head[len(in):]
+	return
+}
+
+// deriveCounter computes the initial GCM counter state from the given nonce.
+func (g *gcmAsm) deriveCounter(counter *[gcmBlockSize]byte, nonce []byte) {
+	if len(nonce) == gcmStandardNonceSize {
+		copy(counter[:], nonce)
+		counter[gcmBlockSize-1] = 1
+	} else {
+		var hash [16]byte
+		g.paddedGHASH(&hash, nonce)
+		lens := gcmLengths(0, uint64(len(nonce))*8)
+		g.paddedGHASH(&hash, lens[:])
+		copy(counter[:], hash[:])
+	}
+}
+
+// counterCrypt encrypts in using AES in counter mode and places the result
+// into out. counter is the initial count value and will be updated with the next
+// count value. The length of out must be greater than or equal to the length
+// of in.
+func (g *gcmAsm) counterCrypt(out, in []byte, counter *[gcmBlockSize]byte) {
+	var mask [gcmBlockSize]byte
+
+	for len(in) >= gcmBlockSize {
+		// Hint to avoid bounds check
+		_, _ = in[15], out[15]
+		g.cipher.Encrypt(mask[:], counter[:])
+		gcmInc32(counter)
+
+		// XOR 16 bytes each loop iteration in 8 byte chunks
+		in0 := binary.LittleEndian.Uint64(in[0:])
+		in1 := binary.LittleEndian.Uint64(in[8:])
+		m0 := binary.LittleEndian.Uint64(mask[:8])
+		m1 := binary.LittleEndian.Uint64(mask[8:])
+		binary.LittleEndian.PutUint64(out[:8], in0^m0)
+		binary.LittleEndian.PutUint64(out[8:], in1^m1)
+		out = out[16:]
+		in = in[16:]
+	}
+
+	if len(in) > 0 {
+		g.cipher.Encrypt(mask[:], counter[:])
+		gcmInc32(counter)
+		// XOR leftover bytes
+		for i, inb := range in {
+			out[i] = inb ^ mask[i]
+		}
+	}
+}
+
+// increments the rightmost 32-bits of the count value by 1.
+func gcmInc32(counterBlock *[16]byte) {
+	c := counterBlock[len(counterBlock)-4:]
+	x := binary.BigEndian.Uint32(c) + 1
+	binary.BigEndian.PutUint32(c, x)
+}
+
+// paddedGHASH pads data with zeroes until its length is a multiple of
+// 16-bytes. It then calculates a new value for hash using the ghash
+// algorithm.
+func (g *gcmAsm) paddedGHASH(hash *[16]byte, data []byte) {
+	if siz := len(data) - (len(data) % gcmBlockSize); siz > 0 {
+		gcmHash(hash[:], &g.productTable, data[:], siz)
+		data = data[siz:]
+	}
+	if len(data) > 0 {
+		var s [16]byte
+		copy(s[:], data)
+		gcmHash(hash[:], &g.productTable, s[:], len(s))
+	}
+}
+
+// auth calculates GHASH(ciphertext, additionalData), masks the result with
+// tagMask and writes the result to out.
+func (g *gcmAsm) auth(out, ciphertext, aad []byte, tagMask *[gcmTagSize]byte) {
+	var hash [16]byte
+	g.paddedGHASH(&hash, aad)
+	g.paddedGHASH(&hash, ciphertext)
+	lens := gcmLengths(uint64(len(aad))*8, uint64(len(ciphertext))*8)
+	g.paddedGHASH(&hash, lens[:])
+
+	copy(out, hash[:])
+	for i := range out {
+		out[i] ^= tagMask[i]
+	}
+}
+
+// Seal encrypts and authenticates plaintext. See the cipher.AEAD interface for
+// details.
+func (g *gcmAsm) Seal(dst, nonce, plaintext, data []byte) []byte {
+	if len(nonce) != g.nonceSize {
+		panic("cipher: incorrect nonce length given to GCM")
+	}
+	if uint64(len(plaintext)) > ((1<<32)-2)*BlockSize {
+		panic("cipher: message too large for GCM")
+	}
+
+	ret, out := sliceForAppend(dst, len(plaintext)+g.tagSize)
+
+	var counter, tagMask [gcmBlockSize]byte
+	g.deriveCounter(&counter, nonce)
+
+	g.cipher.Encrypt(tagMask[:], counter[:])
+	gcmInc32(&counter)
+
+	g.counterCrypt(out, plaintext, &counter)
+	g.auth(out[len(plaintext):], out[:len(plaintext)], data, &tagMask)
+
+	return ret
+}
+
+// Open authenticates and decrypts ciphertext. See the cipher.AEAD interface
+// for details.
+func (g *gcmAsm) Open(dst, nonce, ciphertext, data []byte) ([]byte, error) {
+	if len(nonce) != g.nonceSize {
+		panic("cipher: incorrect nonce length given to GCM")
+	}
+	if len(ciphertext) < g.tagSize {
+		return nil, errOpen
+	}
+	if uint64(len(ciphertext)) > ((1<<32)-2)*uint64(BlockSize)+uint64(g.tagSize) {
+		return nil, errOpen
+	}
+
+	tag := ciphertext[len(ciphertext)-g.tagSize:]
+	ciphertext = ciphertext[:len(ciphertext)-g.tagSize]
+
+	var counter, tagMask [gcmBlockSize]byte
+	g.deriveCounter(&counter, nonce)
+
+	g.cipher.Encrypt(tagMask[:], counter[:])
+	gcmInc32(&counter)
+
+	var expectedTag [gcmTagSize]byte
+	g.auth(expectedTag[:], ciphertext, data, &tagMask)
+
+	ret, out := sliceForAppend(dst, len(ciphertext))
+
+	if subtle.ConstantTimeCompare(expectedTag[:g.tagSize], tag) != 1 {
+		for i := range out {
+			out[i] = 0
+		}
+		return nil, errOpen
+	}
+
+	g.counterCrypt(out, ciphertext, &counter)
+	return ret, nil
+}
+
+func gcmLengths(len0, len1 uint64) [16]byte {
+	return [16]byte{
+		byte(len0 >> 56),
+		byte(len0 >> 48),
+		byte(len0 >> 40),
+		byte(len0 >> 32),
+		byte(len0 >> 24),
+		byte(len0 >> 16),
+		byte(len0 >> 8),
+		byte(len0),
+		byte(len1 >> 56),
+		byte(len1 >> 48),
+		byte(len1 >> 40),
+		byte(len1 >> 32),
+		byte(len1 >> 24),
+		byte(len1 >> 16),
+		byte(len1 >> 8),
+		byte(len1),
+	}
+}
diff --git a/libgo/go/crypto/dsa/dsa.go b/libgo/go/crypto/dsa/dsa.go
index 575314b..43826bc 100644
--- a/libgo/go/crypto/dsa/dsa.go
+++ b/libgo/go/crypto/dsa/dsa.go
@@ -202,7 +202,7 @@
 	// FIPS 186-3, section 4.6
 
 	n := priv.Q.BitLen()
-	if priv.Q.Sign() <= 0 || priv.P.Sign() <= 0 || priv.G.Sign() <= 0 || priv.X.Sign() <= 0 || n&7 != 0 {
+	if priv.Q.Sign() <= 0 || priv.P.Sign() <= 0 || priv.G.Sign() <= 0 || priv.X.Sign() <= 0 || n%8 != 0 {
 		err = ErrInvalidPublicKey
 		return
 	}
@@ -279,9 +279,12 @@
 	}
 
 	w := new(big.Int).ModInverse(s, pub.Q)
+	if w == nil {
+		return false
+	}
 
 	n := pub.Q.BitLen()
-	if n&7 != 0 {
+	if n%8 != 0 {
 		return false
 	}
 	z := new(big.Int).SetBytes(hash)
diff --git a/libgo/go/crypto/dsa/dsa_test.go b/libgo/go/crypto/dsa/dsa_test.go
index 7fc246b..28ac00e 100644
--- a/libgo/go/crypto/dsa/dsa_test.go
+++ b/libgo/go/crypto/dsa/dsa_test.go
@@ -97,6 +97,21 @@
 	testSignAndVerify(t, 0, &priv)
 }
 
+func TestSignAndVerifyWithBadPublicKey(t *testing.T) {
+	pub := PublicKey{
+		Parameters: Parameters{
+			P: fromHex("A9B5B793FB4785793D246BAE77E8FF63CA52F442DA763C440259919FE1BC1D6065A9350637A04F75A2F039401D49F08E066C4D275A5A65DA5684BC563C14289D7AB8A67163BFBF79D85972619AD2CFF55AB0EE77A9002B0EF96293BDD0F42685EBB2C66C327079F6C98000FBCB79AACDE1BC6F9D5C7B1A97E3D9D54ED7951FEF"),
+			Q: fromHex("FA"),
+			G: fromHex("634364FC25248933D01D1993ECABD0657CC0CB2CEED7ED2E3E8AECDFCDC4A25C3B15E9E3B163ACA2984B5539181F3EFF1A5E8903D71D5B95DA4F27202B77D2C44B430BB53741A8D59A8F86887525C9F2A6A5980A195EAA7F2FF910064301DEF89D3AA213E1FAC7768D89365318E370AF54A112EFBA9246D9158386BA1B4EEFDA"),
+		},
+		Y: fromHex("32969E5780CFE1C849A1C276D7AEB4F38A23B591739AA2FE197349AEEBD31366AEE5EB7E6C6DDB7C57D02432B30DB5AA66D9884299FAA72568944E4EEDC92EA3FBC6F39F53412FBCC563208F7C15B737AC8910DBC2D9C9B8C001E72FDC40EB694AB1F06A5A2DBD18D9E36C66F31F566742F11EC0A52E9F7B89355C02FB5D32D2"),
+	}
+
+	if Verify(&pub, []byte("testing"), fromHex("2"), fromHex("4")) {
+		t.Errorf("Verify unexpected success with non-existent mod inverse of Q")
+	}
+}
+
 func TestSigningWithDegenerateKeys(t *testing.T) {
 	// Signing with degenerate private keys should not cause an infinite
 	// loop.
diff --git a/libgo/go/crypto/ecdsa/ecdsa.go b/libgo/go/crypto/ecdsa/ecdsa.go
index ddc3b35..65911e7 100644
--- a/libgo/go/crypto/ecdsa/ecdsa.go
+++ b/libgo/go/crypto/ecdsa/ecdsa.go
@@ -5,13 +5,23 @@
 // Package ecdsa implements the Elliptic Curve Digital Signature Algorithm, as
 // defined in FIPS 186-3.
 //
-// This implementation  derives the nonce from an AES-CTR CSPRNG keyed by
-// ChopMD(256, SHA2-512(priv.D || entropy || hash)). The CSPRNG key is IRO by
-// a result of Coron; the AES-CTR stream is IRO under standard assumptions.
+// This implementation derives the nonce from an AES-CTR CSPRNG keyed by:
+//
+// SHA2-512(priv.D || entropy || hash)[:32]
+//
+// The CSPRNG key is indifferentiable from a random oracle as shown in
+// [Coron], the AES-CTR stream is indifferentiable from a random oracle
+// under standard cryptographic assumptions (see [Larsson] for examples).
+//
+// References:
+//   [Coron]
+//     https://cs.nyu.edu/~dodis/ps/merkle.pdf
+//   [Larsson]
+//     https://www.nada.kth.se/kurser/kth/2D1441/semteo03/lecturenotes/assump.pdf
 package ecdsa
 
-// References:
-//   [NSA]: Suite B implementer's guide to FIPS 186-3,
+// Further references:
+//   [NSA]: Suite B implementer's guide to FIPS 186-3
 //     https://apps.nsa.gov/iaarchive/library/ia-guidance/ia-solutions-for-classified/algorithm-guidance/suite-b-implementers-guide-to-fips-186-3-ecdsa.cfm
 //   [SECG]: SECG, SEC1
 //     http://www.secg.org/sec1-v2.pdf
@@ -189,21 +199,14 @@
 
 	// See [NSA] 3.4.1
 	c := priv.PublicKey.Curve
-	e := hashToInt(hash, c)
-	r, s, err = sign(priv, &csprng, c, e)
-	return
-}
-
-func signGeneric(priv *PrivateKey, csprng *cipher.StreamReader, c elliptic.Curve, e *big.Int) (r, s *big.Int, err error) {
 	N := c.Params().N
 	if N.Sign() == 0 {
 		return nil, nil, errZeroParam
 	}
-
 	var k, kInv *big.Int
 	for {
 		for {
-			k, err = randFieldElement(c, *csprng)
+			k, err = randFieldElement(c, csprng)
 			if err != nil {
 				r = nil
 				return
@@ -221,6 +224,8 @@
 				break
 			}
 		}
+
+		e := hashToInt(hash, c)
 		s = new(big.Int).Mul(priv.D, r)
 		s.Add(s, e)
 		s.Mul(s, kInv)
@@ -229,6 +234,7 @@
 			break
 		}
 	}
+
 	return
 }
 
@@ -246,12 +252,8 @@
 		return false
 	}
 	e := hashToInt(hash, c)
-	return verify(pub, c, e, r, s)
-}
 
-func verifyGeneric(pub *PublicKey, c elliptic.Curve, e, r, s *big.Int) bool {
 	var w *big.Int
-	N := c.Params().N
 	if in, ok := c.(invertible); ok {
 		w = in.Inverse(s)
 	} else {
diff --git a/libgo/go/crypto/ecdsa/ecdsa_noasm.go b/libgo/go/crypto/ecdsa/ecdsa_noasm.go
deleted file mode 100644
index d9f9cff..0000000
--- a/libgo/go/crypto/ecdsa/ecdsa_noasm.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !s390x gccgo
-
-package ecdsa
-
-import (
-	"crypto/cipher"
-	"crypto/elliptic"
-	"math/big"
-)
-
-func sign(priv *PrivateKey, csprng *cipher.StreamReader, c elliptic.Curve, e *big.Int) (r, s *big.Int, err error) {
-	r, s, err = signGeneric(priv, csprng, c, e)
-	return
-}
-
-func verify(pub *PublicKey, c elliptic.Curve, e, r, s *big.Int) bool {
-	return verifyGeneric(pub, c, e, r, s)
-}
diff --git a/libgo/go/crypto/ecdsa/ecdsa_s390x.go b/libgo/go/crypto/ecdsa/ecdsa_s390x.go
deleted file mode 100644
index f07c3bf..0000000
--- a/libgo/go/crypto/ecdsa/ecdsa_s390x.go
+++ /dev/null
@@ -1,153 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build s390x,!gccgo
-
-package ecdsa
-
-import (
-	"crypto/cipher"
-	"crypto/elliptic"
-	"internal/cpu"
-	"math/big"
-)
-
-// s390x accelerated signatures
-//go:noescape
-func kdsaSig(fc uint64, block *[1720]byte) (errn uint64)
-
-type signverify int
-
-const (
-	signing signverify = iota
-	verifying
-)
-
-// bufferOffsets represents the offset of a particular parameter in
-// the buffer passed to the KDSA instruction.
-type bufferOffsets struct {
-	baseSize       int
-	hashSize       int
-	offsetHash     int
-	offsetKey1     int
-	offsetRNorKey2 int
-	offsetR        int
-	offsetS        int
-	functionCode   uint64
-}
-
-func canUseKDSA(sv signverify, c elliptic.Curve, bo *bufferOffsets) bool {
-	if !cpu.S390X.HasECDSA {
-		return false
-	}
-
-	switch c.Params().Name {
-	case "P-256":
-		bo.baseSize = 32
-		bo.hashSize = 32
-		bo.offsetHash = 64
-		bo.offsetKey1 = 96
-		bo.offsetRNorKey2 = 128
-		bo.offsetR = 0
-		bo.offsetS = 32
-		if sv == signing {
-			bo.functionCode = 137
-		} else {
-			bo.functionCode = 1
-		}
-		return true
-	case "P-384":
-		bo.baseSize = 48
-		bo.hashSize = 48
-		bo.offsetHash = 96
-		bo.offsetKey1 = 144
-		bo.offsetRNorKey2 = 192
-		bo.offsetR = 0
-		bo.offsetS = 48
-		if sv == signing {
-			bo.functionCode = 138
-		} else {
-			bo.functionCode = 2
-		}
-		return true
-	case "P-521":
-		bo.baseSize = 66
-		bo.hashSize = 80
-		bo.offsetHash = 160
-		bo.offsetKey1 = 254
-		bo.offsetRNorKey2 = 334
-		bo.offsetR = 14
-		bo.offsetS = 94
-		if sv == signing {
-			bo.functionCode = 139
-		} else {
-			bo.functionCode = 3
-		}
-		return true
-	}
-	return false
-}
-
-// zeroExtendAndCopy pads src with leading zeros until it has the size given.
-// It then copies the padded src into the dst. Bytes beyond size in dst are
-// not modified.
-func zeroExtendAndCopy(dst, src []byte, size int) {
-	nz := size - len(src)
-	if nz < 0 {
-		panic("src is too long")
-	}
-	// the compiler should replace this loop with a memclr call
-	z := dst[:nz]
-	for i := range z {
-		z[i] = 0
-	}
-	copy(dst[nz:size], src[:size-nz])
-	return
-}
-
-func sign(priv *PrivateKey, csprng *cipher.StreamReader, c elliptic.Curve, e *big.Int) (r, s *big.Int, err error) {
-	var bo bufferOffsets
-	if canUseKDSA(signing, c, &bo) && e.Sign() != 0 {
-		var buffer [1720]byte
-		for {
-			var k *big.Int
-			k, err = randFieldElement(c, csprng)
-			if err != nil {
-				return nil, nil, err
-			}
-			zeroExtendAndCopy(buffer[bo.offsetHash:], e.Bytes(), bo.hashSize)
-			zeroExtendAndCopy(buffer[bo.offsetKey1:], priv.D.Bytes(), bo.baseSize)
-			zeroExtendAndCopy(buffer[bo.offsetRNorKey2:], k.Bytes(), bo.baseSize)
-			errn := kdsaSig(bo.functionCode, &buffer)
-			if errn == 2 {
-				return nil, nil, errZeroParam
-			}
-			if errn == 0 { // success == 0 means successful signing
-				r = new(big.Int)
-				r.SetBytes(buffer[bo.offsetR : bo.offsetR+bo.baseSize])
-				s = new(big.Int)
-				s.SetBytes(buffer[bo.offsetS : bo.offsetS+bo.baseSize])
-				return
-			}
-			//at this point, it must be that errn == 1: retry
-		}
-	}
-	r, s, err = signGeneric(priv, csprng, c, e)
-	return
-}
-
-func verify(pub *PublicKey, c elliptic.Curve, e, r, s *big.Int) bool {
-	var bo bufferOffsets
-	if canUseKDSA(verifying, c, &bo) && e.Sign() != 0 {
-		var buffer [1720]byte
-		zeroExtendAndCopy(buffer[bo.offsetR:], r.Bytes(), bo.baseSize)
-		zeroExtendAndCopy(buffer[bo.offsetS:], s.Bytes(), bo.baseSize)
-		zeroExtendAndCopy(buffer[bo.offsetHash:], e.Bytes(), bo.hashSize)
-		zeroExtendAndCopy(buffer[bo.offsetKey1:], pub.X.Bytes(), bo.baseSize)
-		zeroExtendAndCopy(buffer[bo.offsetRNorKey2:], pub.Y.Bytes(), bo.baseSize)
-		errn := kdsaSig(bo.functionCode, &buffer)
-		return errn == 0
-	}
-	return verifyGeneric(pub, c, e, r, s)
-}
diff --git a/libgo/go/crypto/ecdsa/ecdsa_s390x_test.go b/libgo/go/crypto/ecdsa/ecdsa_s390x_test.go
deleted file mode 100644
index 80babc9..0000000
--- a/libgo/go/crypto/ecdsa/ecdsa_s390x_test.go
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build s390x,!gccgo
-
-package ecdsa
-
-import (
-	"crypto/elliptic"
-	"testing"
-)
-
-func TestNoAsm(t *testing.T) {
-	curves := [...]elliptic.Curve{
-		elliptic.P256(),
-		elliptic.P384(),
-		elliptic.P521(),
-	}
-
-	for _, curve := range curves {
-		// override the name of the curve to stop the assembly path being taken
-		params := *curve.Params()
-		name := params.Name
-		params.Name = name + "_GENERIC_OVERRIDE"
-
-		testKeyGeneration(t, &params, name)
-		testSignAndVerify(t, &params, name)
-		testNonceSafety(t, &params, name)
-		testINDCCA(t, &params, name)
-		testNegativeInputs(t, &params, name)
-	}
-}
diff --git a/libgo/go/crypto/ed25519/ed25519.go b/libgo/go/crypto/ed25519/ed25519.go
index dc47e55..dcb4f95 100644
--- a/libgo/go/crypto/ed25519/ed25519.go
+++ b/libgo/go/crypto/ed25519/ed25519.go
@@ -96,6 +96,13 @@
 // with RFC 8032. RFC 8032's private keys correspond to seeds in this
 // package.
 func NewKeyFromSeed(seed []byte) PrivateKey {
+	// Outline the function body so that the returned key can be stack-allocated.
+	privateKey := make([]byte, PrivateKeySize)
+	newKeyFromSeed(privateKey, seed)
+	return privateKey
+}
+
+func newKeyFromSeed(privateKey, seed []byte) {
 	if l := len(seed); l != SeedSize {
 		panic("ed25519: bad seed length: " + strconv.Itoa(l))
 	}
@@ -112,16 +119,21 @@
 	var publicKeyBytes [32]byte
 	A.ToBytes(&publicKeyBytes)
 
-	privateKey := make([]byte, PrivateKeySize)
 	copy(privateKey, seed)
 	copy(privateKey[32:], publicKeyBytes[:])
-
-	return privateKey
 }
 
 // Sign signs the message with privateKey and returns a signature. It will
 // panic if len(privateKey) is not PrivateKeySize.
 func Sign(privateKey PrivateKey, message []byte) []byte {
+	// Outline the function body so that the returned signature can be
+	// stack-allocated.
+	signature := make([]byte, SignatureSize)
+	sign(signature, privateKey, message)
+	return signature
+}
+
+func sign(signature, privateKey, message []byte) {
 	if l := len(privateKey); l != PrivateKeySize {
 		panic("ed25519: bad private key length: " + strconv.Itoa(l))
 	}
@@ -161,11 +173,8 @@
 	var s [32]byte
 	edwards25519.ScMulAdd(&s, &hramDigestReduced, &expandedSecretKey, &messageDigestReduced)
 
-	signature := make([]byte, SignatureSize)
 	copy(signature[:], encodedR[:])
 	copy(signature[32:], s[:])
-
-	return signature
 }
 
 // Verify reports whether sig is a valid signature of message by publicKey. It
diff --git a/libgo/go/crypto/ed25519/ed25519_test.go b/libgo/go/crypto/ed25519/ed25519_test.go
index 9c980fc..cacd281 100644
--- a/libgo/go/crypto/ed25519/ed25519_test.go
+++ b/libgo/go/crypto/ed25519/ed25519_test.go
@@ -191,6 +191,14 @@
 	}
 }
 
+func BenchmarkNewKeyFromSeed(b *testing.B) {
+	seed := make([]byte, SeedSize)
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		_ = NewKeyFromSeed(seed)
+	}
+}
+
 func BenchmarkSigning(b *testing.B) {
 	var zero zeroReader
 	_, priv, err := GenerateKey(zero)
@@ -198,6 +206,7 @@
 		b.Fatal(err)
 	}
 	message := []byte("Hello, world!")
+	b.ReportAllocs()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
 		Sign(priv, message)
diff --git a/libgo/go/crypto/elliptic/fuzz_test.go b/libgo/go/crypto/elliptic/fuzz_test.go
index eaeed0d..b9209a7 100644
--- a/libgo/go/crypto/elliptic/fuzz_test.go
+++ b/libgo/go/crypto/elliptic/fuzz_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build amd64 arm64
+// +build amd64 arm64 ppc64le
 
 package elliptic
 
diff --git a/libgo/go/crypto/elliptic/p256.go b/libgo/go/crypto/elliptic/p256.go
index 937d2a4..3ad8e72 100644
--- a/libgo/go/crypto/elliptic/p256.go
+++ b/libgo/go/crypto/elliptic/p256.go
@@ -85,7 +85,7 @@
 
 // Field elements are represented as nine, unsigned 32-bit words.
 //
-// The value of an field element is:
+// The value of a field element is:
 //   x[0] + (x[1] * 2**29) + (x[2] * 2**57) + ... + (x[8] * 2**228)
 //
 // That is, each limb is alternately 29 or 28-bits wide in little-endian
@@ -307,7 +307,7 @@
 }
 
 // p256ReduceDegree sets out = tmp/R mod p where tmp contains 64-bit words with
-// the same 29,28,... bit positions as an field element.
+// the same 29,28,... bit positions as a field element.
 //
 // The values in field elements are in Montgomery form: x*R mod p where R =
 // 2**257. Since we just multiplied two Montgomery values together, the result
diff --git a/libgo/go/crypto/elliptic/p256_generic.go b/libgo/go/crypto/elliptic/p256_generic.go
index 48954a2..8e1a412 100644
--- a/libgo/go/crypto/elliptic/p256_generic.go
+++ b/libgo/go/crypto/elliptic/p256_generic.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// -build !amd64,!s390x,!arm64
+// -build !amd64,!s390x,!arm64,!ppc64le
 
 package elliptic
 
diff --git a/libgo/go/crypto/elliptic/p256_ppc64le.go b/libgo/go/crypto/elliptic/p256_ppc64le.go
new file mode 100644
index 0000000..6f721b8
--- /dev/null
+++ b/libgo/go/crypto/elliptic/p256_ppc64le.go
@@ -0,0 +1,522 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+// +build ppc64le
+
+package elliptic
+
+import (
+	"crypto/subtle"
+	"encoding/binary"
+	"math/big"
+)
+
+// This was ported from the s390x implementation for ppc64le.
+// Some hints are included here for changes that should be
+// in the big endian ppc64 implementation, however more
+// investigation and testing is needed for the ppc64 big
+// endian version to work.
+type p256CurveFast struct {
+	*CurveParams
+}
+
+type p256Point struct {
+	x [32]byte
+	y [32]byte
+	z [32]byte
+}
+
+var (
+	p256        Curve
+	p256PreFast *[37][64]p256Point
+)
+
+func initP256Arch() {
+	p256 = p256CurveFast{p256Params}
+	initTable()
+	return
+}
+
+func (curve p256CurveFast) Params() *CurveParams {
+	return curve.CurveParams
+}
+
+// Functions implemented in p256_asm_ppc64le.s
+// Montgomery multiplication modulo P256
+//
+//go:noescape
+func p256MulAsm(res, in1, in2 []byte)
+
+// Montgomery square modulo P256
+//
+func p256Sqr(res, in []byte) {
+	p256MulAsm(res, in, in)
+}
+
+// Montgomery multiplication by 1
+//
+//go:noescape
+func p256FromMont(res, in []byte)
+
+// iff cond == 1  val <- -val
+//
+//go:noescape
+func p256NegCond(val *p256Point, cond int)
+
+// if cond == 0 res <- b; else res <- a
+//
+//go:noescape
+func p256MovCond(res, a, b *p256Point, cond int)
+
+// Constant time table access
+//
+//go:noescape
+func p256Select(point *p256Point, table []p256Point, idx int)
+
+//
+//go:noescape
+func p256SelectBase(point *p256Point, table []p256Point, idx int)
+
+// Point add with P2 being affine point
+// If sign == 1 -> P2 = -P2
+// If sel == 0 -> P3 = P1
+// if zero == 0 -> P3 = P2
+//
+//go:noescape
+func p256PointAddAffineAsm(res, in1, in2 *p256Point, sign, sel, zero int)
+
+// Point add
+//
+//go:noescape
+func p256PointAddAsm(res, in1, in2 *p256Point) int
+
+//
+//go:noescape
+func p256PointDoubleAsm(res, in *p256Point)
+
+// The result should be a slice in LE order, but the slice
+// from big.Bytes is in BE order.
+// TODO: For big endian implementation, do not reverse bytes.
+//
+func fromBig(big *big.Int) []byte {
+	// This could be done a lot more efficiently...
+	res := big.Bytes()
+	t := make([]byte, 32)
+	if len(res) < 32 {
+		copy(t[32-len(res):], res)
+	} else if len(res) == 32 {
+		copy(t, res)
+	} else {
+		copy(t, res[len(res)-32:])
+	}
+	p256ReverseBytes(t, t)
+	return t
+}
+
+// p256GetMultiplier makes sure byte array will have 32 byte elements, If the scalar
+// is equal or greater than the order of the group, it's reduced modulo that order.
+func p256GetMultiplier(in []byte) []byte {
+	n := new(big.Int).SetBytes(in)
+
+	if n.Cmp(p256Params.N) >= 0 {
+		n.Mod(n, p256Params.N)
+	}
+	return fromBig(n)
+}
+
+// p256MulAsm operates in a Montgomery domain with R = 2^256 mod p, where p is the
+// underlying field of the curve. (See initP256 for the value.) Thus rr here is
+// R×R mod p. See comment in Inverse about how this is used.
+// TODO: For big endian implementation, the bytes in these slices should be in reverse order,
+// as found in the s390x implementation.
+var rr = []byte{0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0, 0xff, 0xff, 0xff, 0xff, 0xfb, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfd, 0xff, 0xff, 0xff, 0x04, 0x00, 0x00, 0x00}
+
+// (This is one, in the Montgomery domain.)
+var one = []byte{0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00}
+
+func maybeReduceModP(in *big.Int) *big.Int {
+	if in.Cmp(p256Params.P) < 0 {
+		return in
+	}
+	return new(big.Int).Mod(in, p256Params.P)
+}
+
+// p256ReverseBytes copies the first 32 bytes from in to res in reverse order.
+func p256ReverseBytes(res, in []byte) {
+	// remove bounds check
+	in = in[:32]
+	res = res[:32]
+
+	// Load in reverse order
+	a := binary.BigEndian.Uint64(in[0:])
+	b := binary.BigEndian.Uint64(in[8:])
+	c := binary.BigEndian.Uint64(in[16:])
+	d := binary.BigEndian.Uint64(in[24:])
+
+	// Store in normal order
+	binary.LittleEndian.PutUint64(res[0:], d)
+	binary.LittleEndian.PutUint64(res[8:], c)
+	binary.LittleEndian.PutUint64(res[16:], b)
+	binary.LittleEndian.PutUint64(res[24:], a)
+}
+
+func (curve p256CurveFast) CombinedMult(bigX, bigY *big.Int, baseScalar, scalar []byte) (x, y *big.Int) {
+	var r1, r2 p256Point
+
+	scalarReduced := p256GetMultiplier(baseScalar)
+	r1IsInfinity := scalarIsZero(scalarReduced)
+	r1.p256BaseMult(scalarReduced)
+
+	copy(r2.x[:], fromBig(maybeReduceModP(bigX)))
+	copy(r2.y[:], fromBig(maybeReduceModP(bigY)))
+	copy(r2.z[:], one)
+	p256MulAsm(r2.x[:], r2.x[:], rr[:])
+	p256MulAsm(r2.y[:], r2.y[:], rr[:])
+
+	scalarReduced = p256GetMultiplier(scalar)
+	r2IsInfinity := scalarIsZero(scalarReduced)
+	r2.p256ScalarMult(scalarReduced)
+
+	var sum, double p256Point
+	pointsEqual := p256PointAddAsm(&sum, &r1, &r2)
+	p256PointDoubleAsm(&double, &r1)
+	p256MovCond(&sum, &double, &sum, pointsEqual)
+	p256MovCond(&sum, &r1, &sum, r2IsInfinity)
+	p256MovCond(&sum, &r2, &sum, r1IsInfinity)
+	return sum.p256PointToAffine()
+}
+
+func (curve p256CurveFast) ScalarBaseMult(scalar []byte) (x, y *big.Int) {
+	var r p256Point
+	reducedScalar := p256GetMultiplier(scalar)
+	r.p256BaseMult(reducedScalar)
+	return r.p256PointToAffine()
+}
+
+func (curve p256CurveFast) ScalarMult(bigX, bigY *big.Int, scalar []byte) (x, y *big.Int) {
+	scalarReduced := p256GetMultiplier(scalar)
+	var r p256Point
+	copy(r.x[:], fromBig(maybeReduceModP(bigX)))
+	copy(r.y[:], fromBig(maybeReduceModP(bigY)))
+	copy(r.z[:], one)
+	p256MulAsm(r.x[:], r.x[:], rr[:])
+	p256MulAsm(r.y[:], r.y[:], rr[:])
+	r.p256ScalarMult(scalarReduced)
+	return r.p256PointToAffine()
+}
+
+func scalarIsZero(scalar []byte) int {
+	// If any byte is not zero, return 0.
+	// Check for -0.... since that appears to compare to 0.
+	b := byte(0)
+	for _, s := range scalar {
+		b |= s
+	}
+	return subtle.ConstantTimeByteEq(b, 0)
+}
+
+func (p *p256Point) p256PointToAffine() (x, y *big.Int) {
+	zInv := make([]byte, 32)
+	zInvSq := make([]byte, 32)
+
+	p256Inverse(zInv, p.z[:])
+	p256Sqr(zInvSq, zInv)
+	p256MulAsm(zInv, zInv, zInvSq)
+
+	p256MulAsm(zInvSq, p.x[:], zInvSq)
+	p256MulAsm(zInv, p.y[:], zInv)
+
+	p256FromMont(zInvSq, zInvSq)
+	p256FromMont(zInv, zInv)
+
+	// SetBytes expects a slice in big endian order,
+	// since ppc64le is little endian, reverse the bytes.
+	// TODO: For big endian, bytes don't need to be reversed.
+	p256ReverseBytes(zInvSq, zInvSq)
+	p256ReverseBytes(zInv, zInv)
+	rx := new(big.Int).SetBytes(zInvSq)
+	ry := new(big.Int).SetBytes(zInv)
+	return rx, ry
+}
+
+// p256Inverse sets out to in^-1 mod p.
+func p256Inverse(out, in []byte) {
+	var stack [6 * 32]byte
+	p2 := stack[32*0 : 32*0+32]
+	p4 := stack[32*1 : 32*1+32]
+	p8 := stack[32*2 : 32*2+32]
+	p16 := stack[32*3 : 32*3+32]
+	p32 := stack[32*4 : 32*4+32]
+
+	p256Sqr(out, in)
+	p256MulAsm(p2, out, in) // 3*p
+
+	p256Sqr(out, p2)
+	p256Sqr(out, out)
+	p256MulAsm(p4, out, p2) // f*p
+
+	p256Sqr(out, p4)
+	p256Sqr(out, out)
+	p256Sqr(out, out)
+	p256Sqr(out, out)
+	p256MulAsm(p8, out, p4) // ff*p
+
+	p256Sqr(out, p8)
+
+	for i := 0; i < 7; i++ {
+		p256Sqr(out, out)
+	}
+	p256MulAsm(p16, out, p8) // ffff*p
+
+	p256Sqr(out, p16)
+	for i := 0; i < 15; i++ {
+		p256Sqr(out, out)
+	}
+	p256MulAsm(p32, out, p16) // ffffffff*p
+
+	p256Sqr(out, p32)
+
+	for i := 0; i < 31; i++ {
+		p256Sqr(out, out)
+	}
+	p256MulAsm(out, out, in)
+
+	for i := 0; i < 32*4; i++ {
+		p256Sqr(out, out)
+	}
+	p256MulAsm(out, out, p32)
+
+	for i := 0; i < 32; i++ {
+		p256Sqr(out, out)
+	}
+	p256MulAsm(out, out, p32)
+
+	for i := 0; i < 16; i++ {
+		p256Sqr(out, out)
+	}
+	p256MulAsm(out, out, p16)
+
+	for i := 0; i < 8; i++ {
+		p256Sqr(out, out)
+	}
+	p256MulAsm(out, out, p8)
+
+	p256Sqr(out, out)
+	p256Sqr(out, out)
+	p256Sqr(out, out)
+	p256Sqr(out, out)
+	p256MulAsm(out, out, p4)
+
+	p256Sqr(out, out)
+	p256Sqr(out, out)
+	p256MulAsm(out, out, p2)
+
+	p256Sqr(out, out)
+	p256Sqr(out, out)
+	p256MulAsm(out, out, in)
+}
+
+func boothW5(in uint) (int, int) {
+	var s uint = ^((in >> 5) - 1)
+	var d uint = (1 << 6) - in - 1
+	d = (d & s) | (in & (^s))
+	d = (d >> 1) + (d & 1)
+	return int(d), int(s & 1)
+}
+
+func boothW6(in uint) (int, int) {
+	var s uint = ^((in >> 6) - 1)
+	var d uint = (1 << 7) - in - 1
+	d = (d & s) | (in & (^s))
+	d = (d >> 1) + (d & 1)
+	return int(d), int(s & 1)
+}
+
+func boothW7(in uint) (int, int) {
+	var s uint = ^((in >> 7) - 1)
+	var d uint = (1 << 8) - in - 1
+	d = (d & s) | (in & (^s))
+	d = (d >> 1) + (d & 1)
+	return int(d), int(s & 1)
+}
+
+func initTable() {
+
+	p256PreFast = new([37][64]p256Point)
+
+	// TODO: For big endian, these slices should be in reverse byte order,
+	// as found in the s390x implementation.
+	basePoint := p256Point{
+		x: [32]byte{0x3c, 0x14, 0xa9, 0x18, 0xd4, 0x30, 0xe7, 0x79, 0x01, 0xb6, 0xed, 0x5f, 0xfc, 0x95, 0xba, 0x75,
+			0x10, 0x25, 0x62, 0x77, 0x2b, 0x73, 0xfb, 0x79, 0xc6, 0x55, 0x37, 0xa5, 0x76, 0x5f, 0x90, 0x18}, //(p256.x*2^256)%p
+		y: [32]byte{0x0a, 0x56, 0x95, 0xce, 0x57, 0x53, 0xf2, 0xdd, 0x5c, 0xe4, 0x19, 0xba, 0xe4, 0xb8, 0x4a, 0x8b,
+			0x25, 0xf3, 0x21, 0xdd, 0x88, 0x86, 0xe8, 0xd2, 0x85, 0x5d, 0x88, 0x25, 0x18, 0xff, 0x71, 0x85}, //(p256.y*2^256)%p
+		z: [32]byte{0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00}, //(p256.z*2^256)%p
+
+	}
+
+	t1 := new(p256Point)
+	t2 := new(p256Point)
+	*t2 = basePoint
+
+	zInv := make([]byte, 32)
+	zInvSq := make([]byte, 32)
+	for j := 0; j < 64; j++ {
+		*t1 = *t2
+		for i := 0; i < 37; i++ {
+			// The window size is 7 so we need to double 7 times.
+			if i != 0 {
+				for k := 0; k < 7; k++ {
+					p256PointDoubleAsm(t1, t1)
+				}
+			}
+			// Convert the point to affine form. (Its values are
+			// still in Montgomery form however.)
+			p256Inverse(zInv, t1.z[:])
+			p256Sqr(zInvSq, zInv)
+			p256MulAsm(zInv, zInv, zInvSq)
+
+			p256MulAsm(t1.x[:], t1.x[:], zInvSq)
+			p256MulAsm(t1.y[:], t1.y[:], zInv)
+
+			copy(t1.z[:], basePoint.z[:])
+			// Update the table entry
+			copy(p256PreFast[i][j].x[:], t1.x[:])
+			copy(p256PreFast[i][j].y[:], t1.y[:])
+		}
+		if j == 0 {
+			p256PointDoubleAsm(t2, &basePoint)
+		} else {
+			p256PointAddAsm(t2, t2, &basePoint)
+		}
+	}
+}
+
+func (p *p256Point) p256BaseMult(scalar []byte) {
+	// TODO: For big endian, the index should be 31 not 0.
+	wvalue := (uint(scalar[0]) << 1) & 0xff
+	sel, sign := boothW7(uint(wvalue))
+	p256SelectBase(p, p256PreFast[0][:], sel)
+	p256NegCond(p, sign)
+
+	copy(p.z[:], one[:])
+	var t0 p256Point
+
+	copy(t0.z[:], one[:])
+
+	index := uint(6)
+	zero := sel
+	for i := 1; i < 37; i++ {
+		// TODO: For big endian, use the same index values as found
+		// in the  s390x implementation.
+		if index < 247 {
+			wvalue = ((uint(scalar[index/8]) >> (index % 8)) + (uint(scalar[index/8+1]) << (8 - (index % 8)))) & 0xff
+		} else {
+			wvalue = (uint(scalar[index/8]) >> (index % 8)) & 0xff
+		}
+		index += 7
+		sel, sign = boothW7(uint(wvalue))
+		p256SelectBase(&t0, p256PreFast[i][:], sel)
+		p256PointAddAffineAsm(p, p, &t0, sign, sel, zero)
+		zero |= sel
+	}
+}
+
+func (p *p256Point) p256ScalarMult(scalar []byte) {
+	// precomp is a table of precomputed points that stores powers of p
+	// from p^1 to p^16.
+	var precomp [16]p256Point
+	var t0, t1, t2, t3 p256Point
+
+	*&precomp[0] = *p
+	p256PointDoubleAsm(&t0, p)
+	p256PointDoubleAsm(&t1, &t0)
+	p256PointDoubleAsm(&t2, &t1)
+	p256PointDoubleAsm(&t3, &t2)
+	*&precomp[1] = t0
+	*&precomp[3] = t1
+	*&precomp[7] = t2
+	*&precomp[15] = t3
+
+	p256PointAddAsm(&t0, &t0, p)
+	p256PointAddAsm(&t1, &t1, p)
+	p256PointAddAsm(&t2, &t2, p)
+
+	*&precomp[2] = t0
+	*&precomp[4] = t1
+	*&precomp[8] = t2
+
+	p256PointDoubleAsm(&t0, &t0)
+	p256PointDoubleAsm(&t1, &t1)
+	*&precomp[5] = t0
+	*&precomp[9] = t1
+
+	p256PointAddAsm(&t2, &t0, p)
+	p256PointAddAsm(&t1, &t1, p)
+	*&precomp[6] = t2
+	*&precomp[10] = t1
+
+	p256PointDoubleAsm(&t0, &t0)
+	p256PointDoubleAsm(&t2, &t2)
+	*&precomp[11] = t0
+	*&precomp[13] = t2
+
+	p256PointAddAsm(&t0, &t0, p)
+	p256PointAddAsm(&t2, &t2, p)
+	*&precomp[12] = t0
+	*&precomp[14] = t2
+
+	// Start scanning the window from top bit
+	index := uint(254)
+	var sel, sign int
+
+	// TODO: For big endian, use index found in s390x implementation.
+	wvalue := (uint(scalar[index/8]) >> (index % 8)) & 0x3f
+	sel, _ = boothW5(uint(wvalue))
+	p256Select(p, precomp[:], sel)
+	zero := sel
+
+	for index > 4 {
+		index -= 5
+		p256PointDoubleAsm(p, p)
+		p256PointDoubleAsm(p, p)
+		p256PointDoubleAsm(p, p)
+		p256PointDoubleAsm(p, p)
+		p256PointDoubleAsm(p, p)
+
+		// TODO: For big endian, use index values as found in s390x implementation.
+		if index < 247 {
+			wvalue = ((uint(scalar[index/8]) >> (index % 8)) + (uint(scalar[index/8+1]) << (8 - (index % 8)))) & 0x3f
+		} else {
+			wvalue = (uint(scalar[index/8]) >> (index % 8)) & 0x3f
+		}
+
+		sel, sign = boothW5(uint(wvalue))
+
+		p256Select(&t0, precomp[:], sel)
+		p256NegCond(&t0, sign)
+		p256PointAddAsm(&t1, p, &t0)
+		p256MovCond(&t1, &t1, p, sel)
+		p256MovCond(p, &t1, &t0, zero)
+		zero |= sel
+	}
+
+	p256PointDoubleAsm(p, p)
+	p256PointDoubleAsm(p, p)
+	p256PointDoubleAsm(p, p)
+	p256PointDoubleAsm(p, p)
+	p256PointDoubleAsm(p, p)
+
+	// TODO: Use index for big endian as found in s390x implementation.
+	wvalue = (uint(scalar[0]) << 1) & 0x3f
+	sel, sign = boothW5(uint(wvalue))
+
+	p256Select(&t0, precomp[:], sel)
+	p256NegCond(&t0, sign)
+	p256PointAddAsm(&t1, p, &t0)
+	p256MovCond(&t1, &t1, p, sel)
+	p256MovCond(p, &t1, &t0, zero)
+}
diff --git a/libgo/go/crypto/md5/md5block_decl.go b/libgo/go/crypto/md5/md5block_decl.go
index 761398f..ccdae40 100644
--- a/libgo/go/crypto/md5/md5block_decl.go
+++ b/libgo/go/crypto/md5/md5block_decl.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // +build ignore
-// +build amd64 amd64p32 386 arm ppc64le ppc64 s390x arm64
+// +build amd64 386 arm ppc64le ppc64 s390x arm64
 
 package md5
 
diff --git a/libgo/go/crypto/md5/md5block_generic.go b/libgo/go/crypto/md5/md5block_generic.go
index 69c4456..56520f1 100644
--- a/libgo/go/crypto/md5/md5block_generic.go
+++ b/libgo/go/crypto/md5/md5block_generic.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// -build !amd64,!amd64p32,!386,!arm,!ppc64le,!ppc64,!s390x,!arm64
+// -build !amd64,!386,!arm,!ppc64le,!ppc64,!s390x,!arm64
 
 package md5
 
diff --git a/libgo/go/crypto/rand/eagain.go b/libgo/go/crypto/rand/eagain.go
index 5377ead..fbe7475 100644
--- a/libgo/go/crypto/rand/eagain.go
+++ b/libgo/go/crypto/rand/eagain.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris
 
 package rand
 
diff --git a/libgo/go/crypto/rand/rand_unix.go b/libgo/go/crypto/rand/rand_unix.go
index b5e6746..9c7023a 100644
--- a/libgo/go/crypto/rand/rand_unix.go
+++ b/libgo/go/crypto/rand/rand_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd plan9 solaris
+// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd plan9 solaris
 
 // Unix cryptographically secure pseudorandom number
 // generator.
diff --git a/libgo/go/crypto/sha1/sha1block_decl.go b/libgo/go/crypto/sha1/sha1block_decl.go
index bb18cbf..88074c0 100644
--- a/libgo/go/crypto/sha1/sha1block_decl.go
+++ b/libgo/go/crypto/sha1/sha1block_decl.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // +build ignore
-// +build amd64p32 arm 386 s390x
+// +build arm 386 s390x
 
 package sha1
 
diff --git a/libgo/go/crypto/sha1/sha1block_generic.go b/libgo/go/crypto/sha1/sha1block_generic.go
index b14c42c..089b3c4 100644
--- a/libgo/go/crypto/sha1/sha1block_generic.go
+++ b/libgo/go/crypto/sha1/sha1block_generic.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// -build !amd64,!amd64p32,!386,!arm,!s390x,!arm64
+// -build !amd64,!386,!arm,!s390x,!arm64
 
 package sha1
 
diff --git a/libgo/go/crypto/tls/alert.go b/libgo/go/crypto/tls/alert.go
index 24199a7..22b3eca 100644
--- a/libgo/go/crypto/tls/alert.go
+++ b/libgo/go/crypto/tls/alert.go
@@ -40,6 +40,7 @@
 	alertNoRenegotiation        alert = 100
 	alertMissingExtension       alert = 109
 	alertUnsupportedExtension   alert = 110
+	alertUnrecognizedName       alert = 112
 	alertNoApplicationProtocol  alert = 120
 )
 
@@ -69,6 +70,7 @@
 	alertNoRenegotiation:        "no renegotiation",
 	alertMissingExtension:       "missing extension",
 	alertUnsupportedExtension:   "unsupported extension",
+	alertUnrecognizedName:       "unrecognized name",
 	alertNoApplicationProtocol:  "no application protocol",
 }
 
diff --git a/libgo/go/crypto/tls/auth.go b/libgo/go/crypto/tls/auth.go
index c62c9af..009f8d3 100644
--- a/libgo/go/crypto/tls/auth.go
+++ b/libgo/go/crypto/tls/auth.go
@@ -18,70 +18,6 @@
 	"io"
 )
 
-// pickSignatureAlgorithm selects a signature algorithm that is compatible with
-// the given public key and the list of algorithms from the peer and this side.
-// The lists of signature algorithms (peerSigAlgs and ourSigAlgs) are ignored
-// for tlsVersion < VersionTLS12.
-//
-// The returned SignatureScheme codepoint is only meaningful for TLS 1.2,
-// previous TLS versions have a fixed hash function.
-func pickSignatureAlgorithm(pubkey crypto.PublicKey, peerSigAlgs, ourSigAlgs []SignatureScheme, tlsVersion uint16) (sigAlg SignatureScheme, sigType uint8, hashFunc crypto.Hash, err error) {
-	if tlsVersion < VersionTLS12 || len(peerSigAlgs) == 0 {
-		// For TLS 1.1 and before, the signature algorithm could not be
-		// negotiated and the hash is fixed based on the signature type. For TLS
-		// 1.2, if the client didn't send signature_algorithms extension then we
-		// can assume that it supports SHA1. See RFC 5246, Section 7.4.1.4.1.
-		switch pubkey.(type) {
-		case *rsa.PublicKey:
-			if tlsVersion < VersionTLS12 {
-				return 0, signaturePKCS1v15, crypto.MD5SHA1, nil
-			} else {
-				return PKCS1WithSHA1, signaturePKCS1v15, crypto.SHA1, nil
-			}
-		case *ecdsa.PublicKey:
-			return ECDSAWithSHA1, signatureECDSA, crypto.SHA1, nil
-		case ed25519.PublicKey:
-			if tlsVersion < VersionTLS12 {
-				// RFC 8422 specifies support for Ed25519 in TLS 1.0 and 1.1,
-				// but it requires holding on to a handshake transcript to do a
-				// full signature, and not even OpenSSL bothers with the
-				// complexity, so we can't even test it properly.
-				return 0, 0, 0, fmt.Errorf("tls: Ed25519 public keys are not supported before TLS 1.2")
-			}
-			return Ed25519, signatureEd25519, directSigning, nil
-		default:
-			return 0, 0, 0, fmt.Errorf("tls: unsupported public key: %T", pubkey)
-		}
-	}
-	for _, sigAlg := range peerSigAlgs {
-		if !isSupportedSignatureAlgorithm(sigAlg, ourSigAlgs) {
-			continue
-		}
-		hashAlg, err := hashFromSignatureScheme(sigAlg)
-		if err != nil {
-			panic("tls: supported signature algorithm has an unknown hash function")
-		}
-		sigType := signatureFromSignatureScheme(sigAlg)
-		switch pubkey.(type) {
-		case *rsa.PublicKey:
-			if sigType == signaturePKCS1v15 || sigType == signatureRSAPSS {
-				return sigAlg, sigType, hashAlg, nil
-			}
-		case *ecdsa.PublicKey:
-			if sigType == signatureECDSA {
-				return sigAlg, sigType, hashAlg, nil
-			}
-		case ed25519.PublicKey:
-			if sigType == signatureEd25519 {
-				return sigAlg, sigType, hashAlg, nil
-			}
-		default:
-			return 0, 0, 0, fmt.Errorf("tls: unsupported public key: %T", pubkey)
-		}
-	}
-	return 0, 0, 0, errors.New("tls: peer doesn't support any common signature algorithms")
-}
-
 // verifyHandshakeSignature verifies a signature against pre-hashed
 // (if required) handshake contents.
 func verifyHandshakeSignature(sigType uint8, pubkey crypto.PublicKey, hashFunc crypto.Hash, signed, sig []byte) error {
@@ -89,30 +25,30 @@
 	case signatureECDSA:
 		pubKey, ok := pubkey.(*ecdsa.PublicKey)
 		if !ok {
-			return errors.New("tls: ECDSA signing requires a ECDSA public key")
+			return fmt.Errorf("expected an ECDSA public key, got %T", pubkey)
 		}
 		ecdsaSig := new(ecdsaSignature)
 		if _, err := asn1.Unmarshal(sig, ecdsaSig); err != nil {
 			return err
 		}
 		if ecdsaSig.R.Sign() <= 0 || ecdsaSig.S.Sign() <= 0 {
-			return errors.New("tls: ECDSA signature contained zero or negative values")
+			return errors.New("ECDSA signature contained zero or negative values")
 		}
 		if !ecdsa.Verify(pubKey, signed, ecdsaSig.R, ecdsaSig.S) {
-			return errors.New("tls: ECDSA verification failure")
+			return errors.New("ECDSA verification failure")
 		}
 	case signatureEd25519:
 		pubKey, ok := pubkey.(ed25519.PublicKey)
 		if !ok {
-			return errors.New("tls: Ed25519 signing requires a Ed25519 public key")
+			return fmt.Errorf("expected an Ed25519 public key, got %T", pubkey)
 		}
 		if !ed25519.Verify(pubKey, signed, sig) {
-			return errors.New("tls: Ed25519 verification failure")
+			return errors.New("Ed25519 verification failure")
 		}
 	case signaturePKCS1v15:
 		pubKey, ok := pubkey.(*rsa.PublicKey)
 		if !ok {
-			return errors.New("tls: RSA signing requires a RSA public key")
+			return fmt.Errorf("expected an RSA public key, got %T", pubkey)
 		}
 		if err := rsa.VerifyPKCS1v15(pubKey, hashFunc, signed, sig); err != nil {
 			return err
@@ -120,14 +56,14 @@
 	case signatureRSAPSS:
 		pubKey, ok := pubkey.(*rsa.PublicKey)
 		if !ok {
-			return errors.New("tls: RSA signing requires a RSA public key")
+			return fmt.Errorf("expected an RSA public key, got %T", pubkey)
 		}
 		signOpts := &rsa.PSSOptions{SaltLength: rsa.PSSSaltLengthEqualsHash}
 		if err := rsa.VerifyPSS(pubKey, hashFunc, signed, sig, signOpts); err != nil {
 			return err
 		}
 	default:
-		return errors.New("tls: unknown signature algorithm")
+		return errors.New("internal error: unknown signature type")
 	}
 	return nil
 }
@@ -165,59 +101,159 @@
 	return h.Sum(nil)
 }
 
+// typeAndHashFromSignatureScheme returns the corresponding signature type and
+// crypto.Hash for a given TLS SignatureScheme.
+func typeAndHashFromSignatureScheme(signatureAlgorithm SignatureScheme) (sigType uint8, hash crypto.Hash, err error) {
+	switch signatureAlgorithm {
+	case PKCS1WithSHA1, PKCS1WithSHA256, PKCS1WithSHA384, PKCS1WithSHA512:
+		sigType = signaturePKCS1v15
+	case PSSWithSHA256, PSSWithSHA384, PSSWithSHA512:
+		sigType = signatureRSAPSS
+	case ECDSAWithSHA1, ECDSAWithP256AndSHA256, ECDSAWithP384AndSHA384, ECDSAWithP521AndSHA512:
+		sigType = signatureECDSA
+	case Ed25519:
+		sigType = signatureEd25519
+	default:
+		return 0, 0, fmt.Errorf("unsupported signature algorithm: %#04x", signatureAlgorithm)
+	}
+	switch signatureAlgorithm {
+	case PKCS1WithSHA1, ECDSAWithSHA1:
+		hash = crypto.SHA1
+	case PKCS1WithSHA256, PSSWithSHA256, ECDSAWithP256AndSHA256:
+		hash = crypto.SHA256
+	case PKCS1WithSHA384, PSSWithSHA384, ECDSAWithP384AndSHA384:
+		hash = crypto.SHA384
+	case PKCS1WithSHA512, PSSWithSHA512, ECDSAWithP521AndSHA512:
+		hash = crypto.SHA512
+	case Ed25519:
+		hash = directSigning
+	default:
+		return 0, 0, fmt.Errorf("unsupported signature algorithm: %#04x", signatureAlgorithm)
+	}
+	return sigType, hash, nil
+}
+
+// legacyTypeAndHashFromPublicKey returns the fixed signature type and crypto.Hash for
+// a given public key used with TLS 1.0 and 1.1, before the introduction of
+// signature algorithm negotiation.
+func legacyTypeAndHashFromPublicKey(pub crypto.PublicKey) (sigType uint8, hash crypto.Hash, err error) {
+	switch pub.(type) {
+	case *rsa.PublicKey:
+		return signaturePKCS1v15, crypto.MD5SHA1, nil
+	case *ecdsa.PublicKey:
+		return signatureECDSA, crypto.SHA1, nil
+	case ed25519.PublicKey:
+		// RFC 8422 specifies support for Ed25519 in TLS 1.0 and 1.1,
+		// but it requires holding on to a handshake transcript to do a
+		// full signature, and not even OpenSSL bothers with the
+		// complexity, so we can't even test it properly.
+		return 0, 0, fmt.Errorf("tls: Ed25519 public keys are not supported before TLS 1.2")
+	default:
+		return 0, 0, fmt.Errorf("tls: unsupported public key: %T", pub)
+	}
+}
+
+var rsaSignatureSchemes = []struct {
+	scheme          SignatureScheme
+	minModulusBytes int
+	maxVersion      uint16
+}{
+	// RSA-PSS is used with PSSSaltLengthEqualsHash, and requires
+	//    emLen >= hLen + sLen + 2
+	{PSSWithSHA256, crypto.SHA256.Size()*2 + 2, VersionTLS13},
+	{PSSWithSHA384, crypto.SHA384.Size()*2 + 2, VersionTLS13},
+	{PSSWithSHA512, crypto.SHA512.Size()*2 + 2, VersionTLS13},
+	// PKCS#1 v1.5 uses prefixes from hashPrefixes in crypto/rsa, and requires
+	//    emLen >= len(prefix) + hLen + 11
+	// TLS 1.3 dropped support for PKCS#1 v1.5 in favor of RSA-PSS.
+	{PKCS1WithSHA256, 19 + crypto.SHA256.Size() + 11, VersionTLS12},
+	{PKCS1WithSHA384, 19 + crypto.SHA384.Size() + 11, VersionTLS12},
+	{PKCS1WithSHA512, 19 + crypto.SHA512.Size() + 11, VersionTLS12},
+	{PKCS1WithSHA1, 15 + crypto.SHA1.Size() + 11, VersionTLS12},
+}
+
 // signatureSchemesForCertificate returns the list of supported SignatureSchemes
-// for a given certificate, based on the public key and the protocol version.
+// for a given certificate, based on the public key and the protocol version,
+// and optionally filtered by its explicit SupportedSignatureAlgorithms.
 //
-// It does not support the crypto.Decrypter interface, so shouldn't be used for
-// server certificates in TLS 1.2 and earlier, and it must be kept in sync with
-// supportedSignatureAlgorithms.
+// This function must be kept in sync with supportedSignatureAlgorithms.
 func signatureSchemesForCertificate(version uint16, cert *Certificate) []SignatureScheme {
 	priv, ok := cert.PrivateKey.(crypto.Signer)
 	if !ok {
 		return nil
 	}
 
+	var sigAlgs []SignatureScheme
 	switch pub := priv.Public().(type) {
 	case *ecdsa.PublicKey:
 		if version != VersionTLS13 {
 			// In TLS 1.2 and earlier, ECDSA algorithms are not
 			// constrained to a single curve.
-			return []SignatureScheme{
+			sigAlgs = []SignatureScheme{
 				ECDSAWithP256AndSHA256,
 				ECDSAWithP384AndSHA384,
 				ECDSAWithP521AndSHA512,
 				ECDSAWithSHA1,
 			}
+			break
 		}
 		switch pub.Curve {
 		case elliptic.P256():
-			return []SignatureScheme{ECDSAWithP256AndSHA256}
+			sigAlgs = []SignatureScheme{ECDSAWithP256AndSHA256}
 		case elliptic.P384():
-			return []SignatureScheme{ECDSAWithP384AndSHA384}
+			sigAlgs = []SignatureScheme{ECDSAWithP384AndSHA384}
 		case elliptic.P521():
-			return []SignatureScheme{ECDSAWithP521AndSHA512}
+			sigAlgs = []SignatureScheme{ECDSAWithP521AndSHA512}
 		default:
 			return nil
 		}
 	case *rsa.PublicKey:
-		if version != VersionTLS13 {
-			return []SignatureScheme{
-				PKCS1WithSHA256,
-				PKCS1WithSHA384,
-				PKCS1WithSHA512,
-				PKCS1WithSHA1,
+		size := pub.Size()
+		sigAlgs = make([]SignatureScheme, 0, len(rsaSignatureSchemes))
+		for _, candidate := range rsaSignatureSchemes {
+			if size >= candidate.minModulusBytes && version <= candidate.maxVersion {
+				sigAlgs = append(sigAlgs, candidate.scheme)
 			}
 		}
-		return []SignatureScheme{
-			PSSWithSHA256,
-			PSSWithSHA384,
-			PSSWithSHA512,
-		}
 	case ed25519.PublicKey:
-		return []SignatureScheme{Ed25519}
+		sigAlgs = []SignatureScheme{Ed25519}
 	default:
 		return nil
 	}
+
+	if cert.SupportedSignatureAlgorithms != nil {
+		var filteredSigAlgs []SignatureScheme
+		for _, sigAlg := range sigAlgs {
+			if isSupportedSignatureAlgorithm(sigAlg, cert.SupportedSignatureAlgorithms) {
+				filteredSigAlgs = append(filteredSigAlgs, sigAlg)
+			}
+		}
+		return filteredSigAlgs
+	}
+	return sigAlgs
+}
+
+// selectSignatureScheme picks a SignatureScheme from the peer's preference list
+// that works with the selected certificate. It's only called for protocol
+// versions that support signature algorithms, so TLS 1.2 and 1.3.
+func selectSignatureScheme(vers uint16, c *Certificate, peerAlgs []SignatureScheme) (SignatureScheme, error) {
+	supportedAlgs := signatureSchemesForCertificate(vers, c)
+	if len(supportedAlgs) == 0 {
+		return 0, unsupportedCertificateError(c)
+	}
+	if len(peerAlgs) == 0 && vers == VersionTLS12 {
+		// For TLS 1.2, if the client didn't send signature_algorithms then we
+		// can assume that it supports SHA1. See RFC 5246, Section 7.4.1.4.1.
+		peerAlgs = []SignatureScheme{PKCS1WithSHA1, ECDSAWithSHA1}
+	}
+	// Pick signature scheme in the peer's preference order, as our
+	// preference order is not configurable.
+	for _, preferredAlg := range peerAlgs {
+		if isSupportedSignatureAlgorithm(preferredAlg, supportedAlgs) {
+			return preferredAlg, nil
+		}
+	}
+	return 0, errors.New("tls: peer doesn't support any of the certificate's signature algorithms")
 }
 
 // unsupportedCertificateError returns a helpful error for certificates with
@@ -247,10 +283,15 @@
 			return fmt.Errorf("tls: unsupported certificate curve (%s)", pub.Curve.Params().Name)
 		}
 	case *rsa.PublicKey:
+		return fmt.Errorf("tls: certificate RSA key size too small for supported signature algorithms")
 	case ed25519.PublicKey:
 	default:
 		return fmt.Errorf("tls: unsupported certificate key (%T)", pub)
 	}
 
+	if cert.SupportedSignatureAlgorithms != nil {
+		return fmt.Errorf("tls: peer doesn't support the certificate custom signature algorithms")
+	}
+
 	return fmt.Errorf("tls: internal error: unsupported key (%T)", cert.PrivateKey)
 }
diff --git a/libgo/go/crypto/tls/auth_test.go b/libgo/go/crypto/tls/auth_test.go
index 1d958cf..c8d8c8f 100644
--- a/libgo/go/crypto/tls/auth_test.go
+++ b/libgo/go/crypto/tls/auth_test.go
@@ -6,72 +6,68 @@
 
 import (
 	"crypto"
-	"crypto/ed25519"
 	"testing"
 )
 
 func TestSignatureSelection(t *testing.T) {
-	rsaCert := &testRSAPrivateKey.PublicKey
-	ecdsaCert := &testECDSAPrivateKey.PublicKey
-	ed25519Cert := testEd25519PrivateKey.Public().(ed25519.PublicKey)
-	sigsPKCS1WithSHA := []SignatureScheme{PKCS1WithSHA256, PKCS1WithSHA1}
-	sigsPSSWithSHA := []SignatureScheme{PSSWithSHA256, PSSWithSHA384}
-	sigsECDSAWithSHA := []SignatureScheme{ECDSAWithP256AndSHA256, ECDSAWithSHA1}
+	rsaCert := &Certificate{
+		Certificate: [][]byte{testRSACertificate},
+		PrivateKey:  testRSAPrivateKey,
+	}
+	pkcs1Cert := &Certificate{
+		Certificate:                  [][]byte{testRSACertificate},
+		PrivateKey:                   testRSAPrivateKey,
+		SupportedSignatureAlgorithms: []SignatureScheme{PKCS1WithSHA1, PKCS1WithSHA256},
+	}
+	ecdsaCert := &Certificate{
+		Certificate: [][]byte{testP256Certificate},
+		PrivateKey:  testP256PrivateKey,
+	}
+	ed25519Cert := &Certificate{
+		Certificate: [][]byte{testEd25519Certificate},
+		PrivateKey:  testEd25519PrivateKey,
+	}
 
 	tests := []struct {
-		pubkey      crypto.PublicKey
+		cert        *Certificate
 		peerSigAlgs []SignatureScheme
-		ourSigAlgs  []SignatureScheme
 		tlsVersion  uint16
 
-		expectedSigAlg  SignatureScheme // if tlsVersion == VersionTLS12
+		expectedSigAlg  SignatureScheme
 		expectedSigType uint8
 		expectedHash    crypto.Hash
 	}{
-		// Hash is fixed for RSA in TLS 1.1 and before.
-		// https://tools.ietf.org/html/rfc4346#page-44
-		{rsaCert, nil, nil, VersionTLS11, 0, signaturePKCS1v15, crypto.MD5SHA1},
-		{rsaCert, nil, nil, VersionTLS10, 0, signaturePKCS1v15, crypto.MD5SHA1},
-		{rsaCert, nil, nil, VersionSSL30, 0, signaturePKCS1v15, crypto.MD5SHA1},
-
-		// Before TLS 1.2, there is no signature_algorithms extension
-		// nor field in CertificateRequest and digitally-signed and thus
-		// it should be ignored.
-		{rsaCert, sigsPKCS1WithSHA, nil, VersionTLS11, 0, signaturePKCS1v15, crypto.MD5SHA1},
-		{rsaCert, sigsPKCS1WithSHA, sigsPKCS1WithSHA, VersionTLS11, 0, signaturePKCS1v15, crypto.MD5SHA1},
-		// Use SHA-1 for TLS 1.0 and 1.1 with ECDSA, see https://tools.ietf.org/html/rfc4492#page-20
-		{ecdsaCert, sigsPKCS1WithSHA, sigsPKCS1WithSHA, VersionTLS11, 0, signatureECDSA, crypto.SHA1},
-		{ecdsaCert, sigsPKCS1WithSHA, sigsPKCS1WithSHA, VersionTLS10, 0, signatureECDSA, crypto.SHA1},
+		{rsaCert, []SignatureScheme{PKCS1WithSHA1, PKCS1WithSHA256}, VersionTLS12, PKCS1WithSHA1, signaturePKCS1v15, crypto.SHA1},
+		{rsaCert, []SignatureScheme{PKCS1WithSHA512, PKCS1WithSHA1}, VersionTLS12, PKCS1WithSHA512, signaturePKCS1v15, crypto.SHA512},
+		{rsaCert, []SignatureScheme{PSSWithSHA256, PKCS1WithSHA256}, VersionTLS12, PSSWithSHA256, signatureRSAPSS, crypto.SHA256},
+		{pkcs1Cert, []SignatureScheme{PSSWithSHA256, PKCS1WithSHA256}, VersionTLS12, PKCS1WithSHA256, signaturePKCS1v15, crypto.SHA256},
+		{rsaCert, []SignatureScheme{PSSWithSHA384, PKCS1WithSHA1}, VersionTLS13, PSSWithSHA384, signatureRSAPSS, crypto.SHA384},
+		{ecdsaCert, []SignatureScheme{ECDSAWithSHA1}, VersionTLS12, ECDSAWithSHA1, signatureECDSA, crypto.SHA1},
+		{ecdsaCert, []SignatureScheme{ECDSAWithP256AndSHA256}, VersionTLS12, ECDSAWithP256AndSHA256, signatureECDSA, crypto.SHA256},
+		{ecdsaCert, []SignatureScheme{ECDSAWithP256AndSHA256}, VersionTLS13, ECDSAWithP256AndSHA256, signatureECDSA, crypto.SHA256},
+		{ed25519Cert, []SignatureScheme{Ed25519}, VersionTLS12, Ed25519, signatureEd25519, directSigning},
+		{ed25519Cert, []SignatureScheme{Ed25519}, VersionTLS13, Ed25519, signatureEd25519, directSigning},
 
 		// TLS 1.2 without signature_algorithms extension
-		// https://tools.ietf.org/html/rfc5246#page-47
-		{rsaCert, nil, sigsPKCS1WithSHA, VersionTLS12, PKCS1WithSHA1, signaturePKCS1v15, crypto.SHA1},
-		{ecdsaCert, nil, sigsPKCS1WithSHA, VersionTLS12, ECDSAWithSHA1, signatureECDSA, crypto.SHA1},
+		{rsaCert, nil, VersionTLS12, PKCS1WithSHA1, signaturePKCS1v15, crypto.SHA1},
+		{ecdsaCert, nil, VersionTLS12, ECDSAWithSHA1, signatureECDSA, crypto.SHA1},
 
-		{rsaCert, []SignatureScheme{PKCS1WithSHA1}, sigsPKCS1WithSHA, VersionTLS12, PKCS1WithSHA1, signaturePKCS1v15, crypto.SHA1},
-		{rsaCert, []SignatureScheme{PKCS1WithSHA256}, sigsPKCS1WithSHA, VersionTLS12, PKCS1WithSHA256, signaturePKCS1v15, crypto.SHA256},
-		// "sha_hash" may denote hashes other than SHA-1
-		// https://tools.ietf.org/html/draft-ietf-tls-rfc4492bis-17#page-17
-		{ecdsaCert, []SignatureScheme{ECDSAWithSHA1}, sigsECDSAWithSHA, VersionTLS12, ECDSAWithSHA1, signatureECDSA, crypto.SHA1},
-		{ecdsaCert, []SignatureScheme{ECDSAWithP256AndSHA256}, sigsECDSAWithSHA, VersionTLS12, ECDSAWithP256AndSHA256, signatureECDSA, crypto.SHA256},
-
-		// RSASSA-PSS is defined in TLS 1.3 for TLS 1.2
-		// https://tools.ietf.org/html/draft-ietf-tls-tls13-21#page-45
-		{rsaCert, []SignatureScheme{PSSWithSHA256}, sigsPSSWithSHA, VersionTLS12, PSSWithSHA256, signatureRSAPSS, crypto.SHA256},
-
-		// All results are fixed for Ed25519. RFC 8422, Section 5.10.
-		{ed25519Cert, []SignatureScheme{Ed25519}, []SignatureScheme{ECDSAWithSHA1, Ed25519}, VersionTLS12, Ed25519, signatureEd25519, directSigning},
-		{ed25519Cert, nil, nil, VersionTLS12, Ed25519, signatureEd25519, directSigning},
+		// TLS 1.2 does not restrict the ECDSA curve (our ecdsaCert is P-256)
+		{ecdsaCert, []SignatureScheme{ECDSAWithP384AndSHA384}, VersionTLS12, ECDSAWithP384AndSHA384, signatureECDSA, crypto.SHA384},
 	}
 
 	for testNo, test := range tests {
-		sigAlg, sigType, hashFunc, err := pickSignatureAlgorithm(test.pubkey, test.peerSigAlgs, test.ourSigAlgs, test.tlsVersion)
+		sigAlg, err := selectSignatureScheme(test.tlsVersion, test.cert, test.peerSigAlgs)
 		if err != nil {
-			t.Errorf("test[%d]: unexpected error: %v", testNo, err)
+			t.Errorf("test[%d]: unexpected selectSignatureScheme error: %v", testNo, err)
 		}
-		if test.tlsVersion == VersionTLS12 && test.expectedSigAlg != sigAlg {
+		if test.expectedSigAlg != sigAlg {
 			t.Errorf("test[%d]: expected signature scheme %#x, got %#x", testNo, test.expectedSigAlg, sigAlg)
 		}
+		sigType, hashFunc, err := typeAndHashFromSignatureScheme(sigAlg)
+		if err != nil {
+			t.Errorf("test[%d]: unexpected typeAndHashFromSignatureScheme error: %v", testNo, err)
+		}
 		if test.expectedSigType != sigType {
 			t.Errorf("test[%d]: expected signature algorithm %#x, got %#x", testNo, test.expectedSigType, sigType)
 		}
@@ -80,34 +76,93 @@
 		}
 	}
 
+	brokenCert := &Certificate{
+		Certificate:                  [][]byte{testRSACertificate},
+		PrivateKey:                   testRSAPrivateKey,
+		SupportedSignatureAlgorithms: []SignatureScheme{Ed25519},
+	}
+
 	badTests := []struct {
-		pubkey      crypto.PublicKey
+		cert        *Certificate
 		peerSigAlgs []SignatureScheme
-		ourSigAlgs  []SignatureScheme
 		tlsVersion  uint16
 	}{
-		{rsaCert, sigsECDSAWithSHA, sigsPKCS1WithSHA, VersionTLS12},
-		{ecdsaCert, sigsPKCS1WithSHA, sigsPKCS1WithSHA, VersionTLS12},
-		{ecdsaCert, sigsECDSAWithSHA, sigsPKCS1WithSHA, VersionTLS12},
-		{rsaCert, []SignatureScheme{0}, sigsPKCS1WithSHA, VersionTLS12},
-		{ed25519Cert, sigsECDSAWithSHA, sigsECDSAWithSHA, VersionTLS12},
-		{ed25519Cert, []SignatureScheme{Ed25519}, sigsECDSAWithSHA, VersionTLS12},
-		{ecdsaCert, []SignatureScheme{Ed25519}, []SignatureScheme{Ed25519}, VersionTLS12},
-		{ed25519Cert, nil, nil, VersionTLS11},
-		{ed25519Cert, nil, nil, VersionTLS10},
-		{ed25519Cert, nil, nil, VersionSSL30},
-
-		// ECDSA is unspecified for SSL 3.0 in RFC 4492.
-		// TODO a SSL 3.0 client cannot advertise signature_algorithms,
-		// but if an application feeds an ECDSA certificate anyway, it
-		// will be accepted rather than trigger a handshake failure. Ok?
-		//{ecdsaCert, nil, nil, VersionSSL30},
+		{rsaCert, []SignatureScheme{ECDSAWithP256AndSHA256, ECDSAWithSHA1}, VersionTLS12},
+		{ecdsaCert, []SignatureScheme{PKCS1WithSHA256, PKCS1WithSHA1}, VersionTLS12},
+		{rsaCert, []SignatureScheme{0}, VersionTLS12},
+		{ed25519Cert, []SignatureScheme{ECDSAWithP256AndSHA256, ECDSAWithSHA1}, VersionTLS12},
+		{ecdsaCert, []SignatureScheme{Ed25519}, VersionTLS12},
+		{brokenCert, []SignatureScheme{Ed25519}, VersionTLS12},
+		{brokenCert, []SignatureScheme{PKCS1WithSHA256}, VersionTLS12},
+		// RFC 5246, Section 7.4.1.4.1, says to only consider {sha1,ecdsa} as
+		// default when the extension is missing, and RFC 8422 does not update
+		// it. Anyway, if a stack supports Ed25519 it better support sigalgs.
+		{ed25519Cert, nil, VersionTLS12},
+		// TLS 1.3 has no default signature_algorithms.
+		{rsaCert, nil, VersionTLS13},
+		{ecdsaCert, nil, VersionTLS13},
+		{ed25519Cert, nil, VersionTLS13},
+		// Wrong curve, which TLS 1.3 checks
+		{ecdsaCert, []SignatureScheme{ECDSAWithP384AndSHA384}, VersionTLS13},
+		// TLS 1.3 does not support PKCS1v1.5 or SHA-1.
+		{rsaCert, []SignatureScheme{PKCS1WithSHA256}, VersionTLS13},
+		{pkcs1Cert, []SignatureScheme{PSSWithSHA256, PKCS1WithSHA256}, VersionTLS13},
+		{ecdsaCert, []SignatureScheme{ECDSAWithSHA1}, VersionTLS13},
+		// The key can be too small for the hash.
+		{rsaCert, []SignatureScheme{PSSWithSHA512}, VersionTLS12},
 	}
 
 	for testNo, test := range badTests {
-		sigAlg, sigType, hashFunc, err := pickSignatureAlgorithm(test.pubkey, test.peerSigAlgs, test.ourSigAlgs, test.tlsVersion)
+		sigAlg, err := selectSignatureScheme(test.tlsVersion, test.cert, test.peerSigAlgs)
 		if err == nil {
-			t.Errorf("test[%d]: unexpected success, got %#x %#x %#x", testNo, sigAlg, sigType, hashFunc)
+			t.Errorf("test[%d]: unexpected success, got %#x", testNo, sigAlg)
+		}
+	}
+}
+
+func TestLegacyTypeAndHash(t *testing.T) {
+	sigType, hashFunc, err := legacyTypeAndHashFromPublicKey(testRSAPrivateKey.Public())
+	if err != nil {
+		t.Errorf("RSA: unexpected error: %v", err)
+	}
+	if expectedSigType := signaturePKCS1v15; expectedSigType != sigType {
+		t.Errorf("RSA: expected signature type %#x, got %#x", expectedSigType, sigType)
+	}
+	if expectedHashFunc := crypto.MD5SHA1; expectedHashFunc != hashFunc {
+		t.Errorf("RSA: expected hash %#x, got %#x", expectedHashFunc, sigType)
+	}
+
+	sigType, hashFunc, err = legacyTypeAndHashFromPublicKey(testECDSAPrivateKey.Public())
+	if err != nil {
+		t.Errorf("ECDSA: unexpected error: %v", err)
+	}
+	if expectedSigType := signatureECDSA; expectedSigType != sigType {
+		t.Errorf("ECDSA: expected signature type %#x, got %#x", expectedSigType, sigType)
+	}
+	if expectedHashFunc := crypto.SHA1; expectedHashFunc != hashFunc {
+		t.Errorf("ECDSA: expected hash %#x, got %#x", expectedHashFunc, sigType)
+	}
+
+	// Ed25519 is not supported by TLS 1.0 and 1.1.
+	_, _, err = legacyTypeAndHashFromPublicKey(testEd25519PrivateKey.Public())
+	if err == nil {
+		t.Errorf("Ed25519: unexpected success")
+	}
+}
+
+// TestSupportedSignatureAlgorithms checks that all supportedSignatureAlgorithms
+// have valid type and hash information.
+func TestSupportedSignatureAlgorithms(t *testing.T) {
+	for _, sigAlg := range supportedSignatureAlgorithms {
+		sigType, hash, err := typeAndHashFromSignatureScheme(sigAlg)
+		if err != nil {
+			t.Errorf("%#04x: unexpected error: %v", sigAlg, err)
+		}
+		if sigType == 0 {
+			t.Errorf("%#04x: missing signature type", sigAlg)
+		}
+		if hash == 0 && sigAlg != Ed25519 {
+			t.Errorf("%#04x: missing hash", sigAlg)
 		}
 	}
 }
diff --git a/libgo/go/crypto/tls/cipher_suites.go b/libgo/go/crypto/tls/cipher_suites.go
index 61bbc9f..ea16ef9 100644
--- a/libgo/go/crypto/tls/cipher_suites.go
+++ b/libgo/go/crypto/tls/cipher_suites.go
@@ -14,10 +14,100 @@
 	"crypto/sha1"
 	"crypto/sha256"
 	"crypto/x509"
-	"golang.org/x/crypto/chacha20poly1305"
+	"fmt"
 	"hash"
+
+	"golang.org/x/crypto/chacha20poly1305"
 )
 
+// CipherSuite is a TLS cipher suite. Note that most functions in this package
+// accept and expose cipher suite IDs instead of this type.
+type CipherSuite struct {
+	ID   uint16
+	Name string
+
+	// Supported versions is the list of TLS protocol versions that can
+	// negotiate this cipher suite.
+	SupportedVersions []uint16
+
+	// Insecure is true if the cipher suite has known security issues
+	// due to its primitives, design, or implementation.
+	Insecure bool
+}
+
+var (
+	supportedUpToTLS12 = []uint16{VersionTLS10, VersionTLS11, VersionTLS12}
+	supportedOnlyTLS12 = []uint16{VersionTLS12}
+	supportedOnlyTLS13 = []uint16{VersionTLS13}
+)
+
+// CipherSuites returns a list of cipher suites currently implemented by this
+// package, excluding those with security issues, which are returned by
+// InsecureCipherSuites.
+//
+// The list is sorted by ID. Note that the default cipher suites selected by
+// this package might depend on logic that can't be captured by a static list.
+func CipherSuites() []*CipherSuite {
+	return []*CipherSuite{
+		{TLS_RSA_WITH_3DES_EDE_CBC_SHA, "TLS_RSA_WITH_3DES_EDE_CBC_SHA", supportedUpToTLS12, false},
+		{TLS_RSA_WITH_AES_128_CBC_SHA, "TLS_RSA_WITH_AES_128_CBC_SHA", supportedUpToTLS12, false},
+		{TLS_RSA_WITH_AES_256_CBC_SHA, "TLS_RSA_WITH_AES_256_CBC_SHA", supportedUpToTLS12, false},
+		{TLS_RSA_WITH_AES_128_GCM_SHA256, "TLS_RSA_WITH_AES_128_GCM_SHA256", supportedOnlyTLS12, false},
+		{TLS_RSA_WITH_AES_256_GCM_SHA384, "TLS_RSA_WITH_AES_256_GCM_SHA384", supportedOnlyTLS12, false},
+
+		{TLS_AES_128_GCM_SHA256, "TLS_AES_128_GCM_SHA256", supportedOnlyTLS13, false},
+		{TLS_AES_256_GCM_SHA384, "TLS_AES_256_GCM_SHA384", supportedOnlyTLS13, false},
+		{TLS_CHACHA20_POLY1305_SHA256, "TLS_CHACHA20_POLY1305_SHA256", supportedOnlyTLS13, false},
+
+		{TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA", supportedUpToTLS12, false},
+		{TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA", supportedUpToTLS12, false},
+		{TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA", supportedUpToTLS12, false},
+		{TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA", supportedUpToTLS12, false},
+		{TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA", supportedUpToTLS12, false},
+		{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256", supportedOnlyTLS12, false},
+		{TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384", supportedOnlyTLS12, false},
+		{TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256", supportedOnlyTLS12, false},
+		{TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384", supportedOnlyTLS12, false},
+		{TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256", supportedOnlyTLS12, false},
+		{TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256", supportedOnlyTLS12, false},
+	}
+}
+
+// InsecureCipherSuites returns a list of cipher suites currently implemented by
+// this package and which have security issues.
+//
+// Most applications should not use the cipher suites in this list, and should
+// only use those returned by CipherSuites.
+func InsecureCipherSuites() []*CipherSuite {
+	// RC4 suites are broken because RC4 is.
+	// CBC-SHA256 suites have no Lucky13 countermeasures.
+	return []*CipherSuite{
+		{TLS_RSA_WITH_RC4_128_SHA, "TLS_RSA_WITH_RC4_128_SHA", supportedUpToTLS12, true},
+		{TLS_RSA_WITH_AES_128_CBC_SHA256, "TLS_RSA_WITH_AES_128_CBC_SHA256", supportedOnlyTLS12, true},
+		{TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA", supportedUpToTLS12, true},
+		{TLS_ECDHE_RSA_WITH_RC4_128_SHA, "TLS_ECDHE_RSA_WITH_RC4_128_SHA", supportedUpToTLS12, true},
+		{TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256", supportedOnlyTLS12, true},
+		{TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256", supportedOnlyTLS12, true},
+	}
+}
+
+// CipherSuiteName returns the standard name for the passed cipher suite ID
+// (e.g. "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256"), or a fallback representation
+// of the ID value if the cipher suite is not implemented by this package.
+func CipherSuiteName(id uint16) string {
+	for _, c := range CipherSuites() {
+		if c.ID == id {
+			return c.Name
+		}
+	}
+	for _, c := range InsecureCipherSuites() {
+		if c.ID == id {
+			return c.Name
+		}
+	}
+	return fmt.Sprintf("0x%04X", id)
+}
+
 // a keyAgreement implements the client and server side of a TLS key agreement
 // protocol by generating and processing key exchange messages.
 type keyAgreement interface {
@@ -38,7 +128,7 @@
 }
 
 const (
-	// suiteECDH indicates that the cipher suite involves elliptic curve
+	// suiteECDHE indicates that the cipher suite involves elliptic curve
 	// Diffie-Hellman. This means that it should only be selected when the
 	// client indicates that it supports ECC with a curve and point format
 	// that we're happy with.
@@ -103,6 +193,24 @@
 	{TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, 16, 20, 0, ecdheECDSAKA, suiteECDHE | suiteECSign | suiteDefaultOff, cipherRC4, macSHA1, nil},
 }
 
+// selectCipherSuite returns the first cipher suite from ids which is also in
+// supportedIDs and passes the ok filter.
+func selectCipherSuite(ids, supportedIDs []uint16, ok func(*cipherSuite) bool) *cipherSuite {
+	for _, id := range ids {
+		candidate := cipherSuiteByID(id)
+		if candidate == nil || !ok(candidate) {
+			continue
+		}
+
+		for _, suppID := range supportedIDs {
+			if id == suppID {
+				return candidate
+			}
+		}
+	}
+	return nil
+}
+
 // A cipherSuiteTLS13 defines only the pair of the AEAD algorithm and hash
 // algorithm to be used with HKDF. See RFC 8446, Appendix B.4.
 type cipherSuiteTLS13 struct {
@@ -141,14 +249,6 @@
 
 // macSHA1 returns a macFunction for the given protocol version.
 func macSHA1(version uint16, key []byte) macFunction {
-	if version == VersionSSL30 {
-		mac := ssl30MAC{
-			h:   sha1.New(),
-			key: make([]byte, len(key)),
-		}
-		copy(mac.key, key)
-		return mac
-	}
 	return tls10MAC{h: hmac.New(newConstantTimeHash(sha1.New), key)}
 }
 
@@ -288,46 +388,6 @@
 	return ret
 }
 
-// ssl30MAC implements the SSLv3 MAC function, as defined in
-// www.mozilla.org/projects/security/pki/nss/ssl/draft302.txt section 5.2.3.1
-type ssl30MAC struct {
-	h   hash.Hash
-	key []byte
-	buf []byte
-}
-
-func (s ssl30MAC) Size() int {
-	return s.h.Size()
-}
-
-var ssl30Pad1 = [48]byte{0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36}
-
-var ssl30Pad2 = [48]byte{0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c}
-
-// MAC does not offer constant timing guarantees for SSL v3.0, since it's deemed
-// useless considering the similar, protocol-level POODLE vulnerability.
-func (s ssl30MAC) MAC(seq, header, data, extra []byte) []byte {
-	padLength := 48
-	if s.h.Size() == 20 {
-		padLength = 40
-	}
-
-	s.h.Reset()
-	s.h.Write(s.key)
-	s.h.Write(ssl30Pad1[:padLength])
-	s.h.Write(seq)
-	s.h.Write(header[:1])
-	s.h.Write(header[3:5])
-	s.h.Write(data)
-	s.buf = s.h.Sum(s.buf[:0])
-
-	s.h.Reset()
-	s.h.Write(s.key)
-	s.h.Write(ssl30Pad2[:padLength])
-	s.h.Write(s.buf)
-	return s.h.Sum(s.buf[:0])
-}
-
 type constantTimeHash interface {
 	hash.Hash
 	ConstantTimeSum(b []byte) []byte
@@ -435,31 +495,31 @@
 // A list of cipher suite IDs that are, or have been, implemented by this
 // package.
 //
-// Taken from https://www.iana.org/assignments/tls-parameters/tls-parameters.xml
+// See https://www.iana.org/assignments/tls-parameters/tls-parameters.xml
 const (
 	// TLS 1.0 - 1.2 cipher suites.
-	TLS_RSA_WITH_RC4_128_SHA                uint16 = 0x0005
-	TLS_RSA_WITH_3DES_EDE_CBC_SHA           uint16 = 0x000a
-	TLS_RSA_WITH_AES_128_CBC_SHA            uint16 = 0x002f
-	TLS_RSA_WITH_AES_256_CBC_SHA            uint16 = 0x0035
-	TLS_RSA_WITH_AES_128_CBC_SHA256         uint16 = 0x003c
-	TLS_RSA_WITH_AES_128_GCM_SHA256         uint16 = 0x009c
-	TLS_RSA_WITH_AES_256_GCM_SHA384         uint16 = 0x009d
-	TLS_ECDHE_ECDSA_WITH_RC4_128_SHA        uint16 = 0xc007
-	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA    uint16 = 0xc009
-	TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA    uint16 = 0xc00a
-	TLS_ECDHE_RSA_WITH_RC4_128_SHA          uint16 = 0xc011
-	TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA     uint16 = 0xc012
-	TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA      uint16 = 0xc013
-	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA      uint16 = 0xc014
-	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 uint16 = 0xc023
-	TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   uint16 = 0xc027
-	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   uint16 = 0xc02f
-	TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 uint16 = 0xc02b
-	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   uint16 = 0xc030
-	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 uint16 = 0xc02c
-	TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305    uint16 = 0xcca8
-	TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305  uint16 = 0xcca9
+	TLS_RSA_WITH_RC4_128_SHA                      uint16 = 0x0005
+	TLS_RSA_WITH_3DES_EDE_CBC_SHA                 uint16 = 0x000a
+	TLS_RSA_WITH_AES_128_CBC_SHA                  uint16 = 0x002f
+	TLS_RSA_WITH_AES_256_CBC_SHA                  uint16 = 0x0035
+	TLS_RSA_WITH_AES_128_CBC_SHA256               uint16 = 0x003c
+	TLS_RSA_WITH_AES_128_GCM_SHA256               uint16 = 0x009c
+	TLS_RSA_WITH_AES_256_GCM_SHA384               uint16 = 0x009d
+	TLS_ECDHE_ECDSA_WITH_RC4_128_SHA              uint16 = 0xc007
+	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA          uint16 = 0xc009
+	TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA          uint16 = 0xc00a
+	TLS_ECDHE_RSA_WITH_RC4_128_SHA                uint16 = 0xc011
+	TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA           uint16 = 0xc012
+	TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA            uint16 = 0xc013
+	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA            uint16 = 0xc014
+	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256       uint16 = 0xc023
+	TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256         uint16 = 0xc027
+	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256         uint16 = 0xc02f
+	TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256       uint16 = 0xc02b
+	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384         uint16 = 0xc030
+	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384       uint16 = 0xc02c
+	TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256   uint16 = 0xcca8
+	TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xcca9
 
 	// TLS 1.3 cipher suites.
 	TLS_AES_128_GCM_SHA256       uint16 = 0x1301
@@ -469,4 +529,9 @@
 	// TLS_FALLBACK_SCSV isn't a standard cipher suite but an indicator
 	// that the client is doing version fallback. See RFC 7507.
 	TLS_FALLBACK_SCSV uint16 = 0x5600
+
+	// Legacy names for the corresponding cipher suites with the correct _SHA256
+	// suffix, retained for backward compatibility.
+	TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305   = TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
+	TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305 = TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
 )
diff --git a/libgo/go/crypto/tls/common.go b/libgo/go/crypto/tls/common.go
index ef0b385..c3de0b3 100644
--- a/libgo/go/crypto/tls/common.go
+++ b/libgo/go/crypto/tls/common.go
@@ -5,9 +5,14 @@
 package tls
 
 import (
+	"bytes"
 	"container/list"
 	"crypto"
+	"crypto/ecdsa"
+	"crypto/ed25519"
+	"crypto/elliptic"
 	"crypto/rand"
+	"crypto/rsa"
 	"crypto/sha512"
 	"crypto/x509"
 	"errors"
@@ -16,7 +21,6 @@
 	"io"
 	"math/big"
 	"net"
-	"os"
 	"strings"
 	"sync"
 	"time"
@@ -28,8 +32,8 @@
 	VersionTLS12 = 0x0303
 	VersionTLS13 = 0x0304
 
-	// Deprecated: SSLv3 is cryptographically broken, and will be
-	// removed in Go 1.14. See golang.org/issue/32716.
+	// Deprecated: SSLv3 is cryptographically broken, and is no longer
+	// supported by this package. See golang.org/issue/32716.
 	VersionSSL30 = 0x0300
 )
 
@@ -96,7 +100,6 @@
 	extensionCertificateAuthorities  uint16 = 47
 	extensionSignatureAlgorithmsCert uint16 = 50
 	extensionKeyShare                uint16 = 51
-	extensionNextProtoNeg            uint16 = 13172 // not IANA assigned
 	extensionRenegotiationInfo       uint16 = 0xff01
 )
 
@@ -188,21 +191,6 @@
 	ECDSAWithSHA1,
 }
 
-// supportedSignatureAlgorithmsTLS12 contains the signature and hash algorithms
-// that are supported in TLS 1.2, where it is possible to distinguish the
-// protocol version. This is temporary, see Issue 32425.
-var supportedSignatureAlgorithmsTLS12 = []SignatureScheme{
-	PKCS1WithSHA256,
-	ECDSAWithP256AndSHA256,
-	Ed25519,
-	PKCS1WithSHA384,
-	PKCS1WithSHA512,
-	ECDSAWithP384AndSHA384,
-	ECDSAWithP521AndSHA512,
-	PKCS1WithSHA1,
-	ECDSAWithSHA1,
-}
-
 // helloRetryRequestRandom is set as the Random value of a ServerHello
 // to signal that the message is actually a HelloRetryRequest.
 var helloRetryRequestRandom = []byte{ // See RFC 8446, Section 4.1.3.
@@ -281,7 +269,7 @@
 // sessions.
 type ClientSessionState struct {
 	sessionTicket      []uint8               // Encrypted ticket used for session resumption with server
-	vers               uint16                // SSL/TLS version negotiated for the session
+	vers               uint16                // TLS version negotiated for the session
 	cipherSuite        uint16                // Ciphersuite negotiated for the session
 	masterSecret       []byte                // Full handshake MasterSecret, or TLS 1.3 resumption_master_secret
 	serverCertificates []*x509.Certificate   // Certificate chain presented by the server
@@ -341,7 +329,7 @@
 )
 
 // ClientHelloInfo contains information from a ClientHello message in order to
-// guide certificate selection in the GetCertificate callback.
+// guide application logic in the GetCertificate and GetConfigForClient callbacks.
 type ClientHelloInfo struct {
 	// CipherSuites lists the CipherSuites supported by the client (e.g.
 	// TLS_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256).
@@ -385,6 +373,10 @@
 	// from, or write to, this connection; that will cause the TLS
 	// connection to fail.
 	Conn net.Conn
+
+	// config is embedded by the GetCertificate or GetConfigForClient caller,
+	// for use with SupportsCertificate.
+	config *Config
 }
 
 // CertificateRequestInfo contains information from a server's
@@ -400,6 +392,9 @@
 	// SignatureSchemes lists the signature schemes that the server is
 	// willing to verify.
 	SignatureSchemes []SignatureScheme
+
+	// Version is the TLS version that was negotiated for this connection.
+	Version uint16
 }
 
 // RenegotiationSupport enumerates the different levels of support for TLS
@@ -446,19 +441,26 @@
 	// If Time is nil, TLS uses time.Now.
 	Time func() time.Time
 
-	// Certificates contains one or more certificate chains to present to
-	// the other side of the connection. Server configurations must include
-	// at least one certificate or else set GetCertificate. Clients doing
-	// client-authentication may set either Certificates or
-	// GetClientCertificate.
+	// Certificates contains one or more certificate chains to present to the
+	// other side of the connection. The first certificate compatible with the
+	// peer's requirements is selected automatically.
+	//
+	// Server configurations must set one of Certificates, GetCertificate or
+	// GetConfigForClient. Clients doing client-authentication may set either
+	// Certificates or GetClientCertificate.
+	//
+	// Note: if there are multiple Certificates, and they don't have the
+	// optional field Leaf set, certificate selection will incur a significant
+	// per-handshake performance cost.
 	Certificates []Certificate
 
 	// NameToCertificate maps from a certificate name to an element of
 	// Certificates. Note that a certificate name can be of the form
 	// '*.example.com' and so doesn't have to be a domain name as such.
-	// See Config.BuildNameToCertificate
-	// The nil value causes the first element of Certificates to be used
-	// for all connections.
+	//
+	// Deprecated: NameToCertificate only allows associating a single
+	// certificate with a given name. Leave this field nil to let the library
+	// select the first compatible chain from Certificates.
 	NameToCertificate map[string]*Certificate
 
 	// GetCertificate returns a Certificate based on the given
@@ -467,7 +469,7 @@
 	//
 	// If GetCertificate is nil or returns nil, then the certificate is
 	// retrieved from NameToCertificate. If NameToCertificate is nil, the
-	// first element of Certificates will be used.
+	// best element of Certificates will be used.
 	GetCertificate func(*ClientHelloInfo) (*Certificate, error)
 
 	// GetClientCertificate, if not nil, is called when a server requests a
@@ -582,12 +584,12 @@
 	// session resumption. It is only used by clients.
 	ClientSessionCache ClientSessionCache
 
-	// MinVersion contains the minimum SSL/TLS version that is acceptable.
-	// If zero, then TLS 1.0 is taken as the minimum.
+	// MinVersion contains the minimum TLS version that is acceptable.
+	// If zero, TLS 1.0 is currently taken as the minimum.
 	MinVersion uint16
 
-	// MaxVersion contains the maximum SSL/TLS version that is acceptable.
-	// If zero, then the maximum version supported by this package is used,
+	// MaxVersion contains the maximum TLS version that is acceptable.
+	// If zero, the maximum version supported by this package is used,
 	// which is currently TLS 1.3.
 	MaxVersion uint16
 
@@ -788,75 +790,24 @@
 	VersionTLS12,
 	VersionTLS11,
 	VersionTLS10,
-	VersionSSL30,
 }
 
-func (c *Config) supportedVersions(isClient bool) []uint16 {
+func (c *Config) supportedVersions() []uint16 {
 	versions := make([]uint16, 0, len(supportedVersions))
 	for _, v := range supportedVersions {
-		// TLS 1.0 is the default minimum version.
-		if (c == nil || c.MinVersion == 0) && v < VersionTLS10 {
-			continue
-		}
 		if c != nil && c.MinVersion != 0 && v < c.MinVersion {
 			continue
 		}
 		if c != nil && c.MaxVersion != 0 && v > c.MaxVersion {
 			continue
 		}
-		// TLS 1.0 is the minimum version supported as a client.
-		if isClient && v < VersionTLS10 {
-			continue
-		}
-		// TLS 1.3 is opt-out in Go 1.13.
-		if v == VersionTLS13 && !isTLS13Supported() {
-			continue
-		}
 		versions = append(versions, v)
 	}
 	return versions
 }
 
-// tls13Support caches the result for isTLS13Supported.
-var tls13Support struct {
-	sync.Once
-	cached bool
-}
-
-// isTLS13Supported returns whether the program enabled TLS 1.3 by not opting
-// out with GODEBUG=tls13=0. It's cached after the first execution.
-func isTLS13Supported() bool {
-	tls13Support.Do(func() {
-		tls13Support.cached = goDebugString("tls13") != "0"
-	})
-	return tls13Support.cached
-}
-
-// goDebugString returns the value of the named GODEBUG key.
-// GODEBUG is of the form "key=val,key2=val2".
-func goDebugString(key string) string {
-	s := os.Getenv("GODEBUG")
-	for i := 0; i < len(s)-len(key)-1; i++ {
-		if i > 0 && s[i-1] != ',' {
-			continue
-		}
-		afterKey := s[i+len(key):]
-		if afterKey[0] != '=' || s[i:i+len(key)] != key {
-			continue
-		}
-		val := afterKey[1:]
-		for i, b := range val {
-			if b == ',' {
-				return val[:i]
-			}
-		}
-		return val
-	}
-	return ""
-}
-
-func (c *Config) maxSupportedVersion(isClient bool) uint16 {
-	supportedVersions := c.supportedVersions(isClient)
+func (c *Config) maxSupportedVersion() uint16 {
+	supportedVersions := c.supportedVersions()
 	if len(supportedVersions) == 0 {
 		return 0
 	}
@@ -886,10 +837,19 @@
 	return c.CurvePreferences
 }
 
+func (c *Config) supportsCurve(curve CurveID) bool {
+	for _, cc := range c.curvePreferences() {
+		if cc == curve {
+			return true
+		}
+	}
+	return false
+}
+
 // mutualVersion returns the protocol version to use given the advertised
 // versions of the peer. Priority is given to the peer preference order.
-func (c *Config) mutualVersion(isClient bool, peerVersions []uint16) (uint16, bool) {
-	supportedVersions := c.supportedVersions(isClient)
+func (c *Config) mutualVersion(peerVersions []uint16) (uint16, bool) {
+	supportedVersions := c.supportedVersions()
 	for _, peerVersion := range peerVersions {
 		for _, v := range supportedVersions {
 			if v == peerVersion {
@@ -900,6 +860,8 @@
 	return 0, false
 }
 
+var errNoCertificates = errors.New("tls: no certificates configured")
+
 // getCertificate returns the best certificate for the given ClientHelloInfo,
 // defaulting to the first element of c.Certificates.
 func (c *Config) getCertificate(clientHello *ClientHelloInfo) (*Certificate, error) {
@@ -912,52 +874,246 @@
 	}
 
 	if len(c.Certificates) == 0 {
-		return nil, errors.New("tls: no certificates configured")
+		return nil, errNoCertificates
 	}
 
-	if len(c.Certificates) == 1 || c.NameToCertificate == nil {
+	if len(c.Certificates) == 1 {
 		// There's only one choice, so no point doing any work.
 		return &c.Certificates[0], nil
 	}
 
-	name := strings.ToLower(clientHello.ServerName)
-	for len(name) > 0 && name[len(name)-1] == '.' {
-		name = name[:len(name)-1]
-	}
-
-	if cert, ok := c.NameToCertificate[name]; ok {
-		return cert, nil
-	}
-
-	// try replacing labels in the name with wildcards until we get a
-	// match.
-	labels := strings.Split(name, ".")
-	for i := range labels {
-		labels[i] = "*"
-		candidate := strings.Join(labels, ".")
-		if cert, ok := c.NameToCertificate[candidate]; ok {
+	if c.NameToCertificate != nil {
+		name := strings.ToLower(clientHello.ServerName)
+		if cert, ok := c.NameToCertificate[name]; ok {
 			return cert, nil
 		}
+		if len(name) > 0 {
+			labels := strings.Split(name, ".")
+			labels[0] = "*"
+			wildcardName := strings.Join(labels, ".")
+			if cert, ok := c.NameToCertificate[wildcardName]; ok {
+				return cert, nil
+			}
+		}
+	}
+
+	for _, cert := range c.Certificates {
+		if err := clientHello.SupportsCertificate(&cert); err == nil {
+			return &cert, nil
+		}
 	}
 
 	// If nothing matches, return the first certificate.
 	return &c.Certificates[0], nil
 }
 
+// SupportsCertificate returns nil if the provided certificate is supported by
+// the client that sent the ClientHello. Otherwise, it returns an error
+// describing the reason for the incompatibility.
+//
+// If this ClientHelloInfo was passed to a GetConfigForClient or GetCertificate
+// callback, this method will take into account the associated Config. Note that
+// if GetConfigForClient returns a different Config, the change can't be
+// accounted for by this method.
+//
+// This function will call x509.ParseCertificate unless c.Leaf is set, which can
+// incur a significant performance cost.
+func (chi *ClientHelloInfo) SupportsCertificate(c *Certificate) error {
+	// Note we don't currently support certificate_authorities nor
+	// signature_algorithms_cert, and don't check the algorithms of the
+	// signatures on the chain (which anyway are a SHOULD, see RFC 8446,
+	// Section 4.4.2.2).
+
+	config := chi.config
+	if config == nil {
+		config = &Config{}
+	}
+	vers, ok := config.mutualVersion(chi.SupportedVersions)
+	if !ok {
+		return errors.New("no mutually supported protocol versions")
+	}
+
+	// If the client specified the name they are trying to connect to, the
+	// certificate needs to be valid for it.
+	if chi.ServerName != "" {
+		x509Cert, err := c.leaf()
+		if err != nil {
+			return fmt.Errorf("failed to parse certificate: %w", err)
+		}
+		if err := x509Cert.VerifyHostname(chi.ServerName); err != nil {
+			return fmt.Errorf("certificate is not valid for requested server name: %w", err)
+		}
+	}
+
+	// supportsRSAFallback returns nil if the certificate and connection support
+	// the static RSA key exchange, and unsupported otherwise. The logic for
+	// supporting static RSA is completely disjoint from the logic for
+	// supporting signed key exchanges, so we just check it as a fallback.
+	supportsRSAFallback := func(unsupported error) error {
+		// TLS 1.3 dropped support for the static RSA key exchange.
+		if vers == VersionTLS13 {
+			return unsupported
+		}
+		// The static RSA key exchange works by decrypting a challenge with the
+		// RSA private key, not by signing, so check the PrivateKey implements
+		// crypto.Decrypter, like *rsa.PrivateKey does.
+		if priv, ok := c.PrivateKey.(crypto.Decrypter); ok {
+			if _, ok := priv.Public().(*rsa.PublicKey); !ok {
+				return unsupported
+			}
+		} else {
+			return unsupported
+		}
+		// Finally, there needs to be a mutual cipher suite that uses the static
+		// RSA key exchange instead of ECDHE.
+		rsaCipherSuite := selectCipherSuite(chi.CipherSuites, config.cipherSuites(), func(c *cipherSuite) bool {
+			if c.flags&suiteECDHE != 0 {
+				return false
+			}
+			if vers < VersionTLS12 && c.flags&suiteTLS12 != 0 {
+				return false
+			}
+			return true
+		})
+		if rsaCipherSuite == nil {
+			return unsupported
+		}
+		return nil
+	}
+
+	// If the client sent the signature_algorithms extension, ensure it supports
+	// schemes we can use with this certificate and TLS version.
+	if len(chi.SignatureSchemes) > 0 {
+		if _, err := selectSignatureScheme(vers, c, chi.SignatureSchemes); err != nil {
+			return supportsRSAFallback(err)
+		}
+	}
+
+	// In TLS 1.3 we are done because supported_groups is only relevant to the
+	// ECDHE computation, point format negotiation is removed, cipher suites are
+	// only relevant to the AEAD choice, and static RSA does not exist.
+	if vers == VersionTLS13 {
+		return nil
+	}
+
+	// The only signed key exchange we support is ECDHE.
+	if !supportsECDHE(config, chi.SupportedCurves, chi.SupportedPoints) {
+		return supportsRSAFallback(errors.New("client doesn't support ECDHE, can only use legacy RSA key exchange"))
+	}
+
+	var ecdsaCipherSuite bool
+	if priv, ok := c.PrivateKey.(crypto.Signer); ok {
+		switch pub := priv.Public().(type) {
+		case *ecdsa.PublicKey:
+			var curve CurveID
+			switch pub.Curve {
+			case elliptic.P256():
+				curve = CurveP256
+			case elliptic.P384():
+				curve = CurveP384
+			case elliptic.P521():
+				curve = CurveP521
+			default:
+				return supportsRSAFallback(unsupportedCertificateError(c))
+			}
+			var curveOk bool
+			for _, c := range chi.SupportedCurves {
+				if c == curve && config.supportsCurve(c) {
+					curveOk = true
+					break
+				}
+			}
+			if !curveOk {
+				return errors.New("client doesn't support certificate curve")
+			}
+			ecdsaCipherSuite = true
+		case ed25519.PublicKey:
+			if vers < VersionTLS12 || len(chi.SignatureSchemes) == 0 {
+				return errors.New("connection doesn't support Ed25519")
+			}
+			ecdsaCipherSuite = true
+		case *rsa.PublicKey:
+		default:
+			return supportsRSAFallback(unsupportedCertificateError(c))
+		}
+	} else {
+		return supportsRSAFallback(unsupportedCertificateError(c))
+	}
+
+	// Make sure that there is a mutually supported cipher suite that works with
+	// this certificate. Cipher suite selection will then apply the logic in
+	// reverse to pick it. See also serverHandshakeState.cipherSuiteOk.
+	cipherSuite := selectCipherSuite(chi.CipherSuites, config.cipherSuites(), func(c *cipherSuite) bool {
+		if c.flags&suiteECDHE == 0 {
+			return false
+		}
+		if c.flags&suiteECSign != 0 {
+			if !ecdsaCipherSuite {
+				return false
+			}
+		} else {
+			if ecdsaCipherSuite {
+				return false
+			}
+		}
+		if vers < VersionTLS12 && c.flags&suiteTLS12 != 0 {
+			return false
+		}
+		return true
+	})
+	if cipherSuite == nil {
+		return supportsRSAFallback(errors.New("client doesn't support any cipher suites compatible with the certificate"))
+	}
+
+	return nil
+}
+
+// SupportsCertificate returns nil if the provided certificate is supported by
+// the server that sent the CertificateRequest. Otherwise, it returns an error
+// describing the reason for the incompatibility.
+func (cri *CertificateRequestInfo) SupportsCertificate(c *Certificate) error {
+	if _, err := selectSignatureScheme(cri.Version, c, cri.SignatureSchemes); err != nil {
+		return err
+	}
+
+	if len(cri.AcceptableCAs) == 0 {
+		return nil
+	}
+
+	for j, cert := range c.Certificate {
+		x509Cert := c.Leaf
+		// Parse the certificate if this isn't the leaf node, or if
+		// chain.Leaf was nil.
+		if j != 0 || x509Cert == nil {
+			var err error
+			if x509Cert, err = x509.ParseCertificate(cert); err != nil {
+				return fmt.Errorf("failed to parse certificate #%d in the chain: %w", j, err)
+			}
+		}
+
+		for _, ca := range cri.AcceptableCAs {
+			if bytes.Equal(x509Cert.RawIssuer, ca) {
+				return nil
+			}
+		}
+	}
+	return errors.New("chain is not signed by an acceptable CA")
+}
+
 // BuildNameToCertificate parses c.Certificates and builds c.NameToCertificate
 // from the CommonName and SubjectAlternateName fields of each of the leaf
 // certificates.
+//
+// Deprecated: NameToCertificate only allows associating a single certificate
+// with a given name. Leave that field nil to let the library select the first
+// compatible chain from Certificates.
 func (c *Config) BuildNameToCertificate() {
 	c.NameToCertificate = make(map[string]*Certificate)
 	for i := range c.Certificates {
 		cert := &c.Certificates[i]
-		x509Cert := cert.Leaf
-		if x509Cert == nil {
-			var err error
-			x509Cert, err = x509.ParseCertificate(cert.Certificate[0])
-			if err != nil {
-				continue
-			}
+		x509Cert, err := cert.leaf()
+		if err != nil {
+			continue
 		}
 		if len(x509Cert.Subject.CommonName) > 0 {
 			c.NameToCertificate[x509Cert.Subject.CommonName] = cert
@@ -1002,19 +1158,30 @@
 	// For a server up to TLS 1.2, it can also implement crypto.Decrypter with
 	// an RSA PublicKey.
 	PrivateKey crypto.PrivateKey
+	// SupportedSignatureAlgorithms is an optional list restricting what
+	// signature algorithms the PrivateKey can be used for.
+	SupportedSignatureAlgorithms []SignatureScheme
 	// OCSPStaple contains an optional OCSP response which will be served
 	// to clients that request it.
 	OCSPStaple []byte
 	// SignedCertificateTimestamps contains an optional list of Signed
 	// Certificate Timestamps which will be served to clients that request it.
 	SignedCertificateTimestamps [][]byte
-	// Leaf is the parsed form of the leaf certificate, which may be
-	// initialized using x509.ParseCertificate to reduce per-handshake
-	// processing for TLS clients doing client authentication. If nil, the
-	// leaf certificate will be parsed as needed.
+	// Leaf is the parsed form of the leaf certificate, which may be initialized
+	// using x509.ParseCertificate to reduce per-handshake processing. If nil,
+	// the leaf certificate will be parsed as needed.
 	Leaf *x509.Certificate
 }
 
+// leaf returns the parsed leaf certificate, either from c.Leaf or by parsing
+// the corresponding c.Certificate[0].
+func (c *Certificate) leaf() (*x509.Certificate, error) {
+	if c.Leaf != nil {
+		return c.Leaf, nil
+	}
+	return x509.ParseCertificate(c.Certificate[0])
+}
+
 type handshakeMessage interface {
 	marshal() []byte
 	unmarshal([]byte) bool
@@ -1203,20 +1370,3 @@
 	}
 	return false
 }
-
-// signatureFromSignatureScheme maps a signature algorithm to the underlying
-// signature method (without hash function).
-func signatureFromSignatureScheme(signatureAlgorithm SignatureScheme) uint8 {
-	switch signatureAlgorithm {
-	case PKCS1WithSHA1, PKCS1WithSHA256, PKCS1WithSHA384, PKCS1WithSHA512:
-		return signaturePKCS1v15
-	case PSSWithSHA256, PSSWithSHA384, PSSWithSHA512:
-		return signatureRSAPSS
-	case ECDSAWithSHA1, ECDSAWithP256AndSHA256, ECDSAWithP384AndSHA384, ECDSAWithP521AndSHA512:
-		return signatureECDSA
-	case Ed25519:
-		return signatureEd25519
-	default:
-		return 0
-	}
-}
diff --git a/libgo/go/crypto/tls/conn.go b/libgo/go/crypto/tls/conn.go
index 0c7952f..fac4b91 100644
--- a/libgo/go/crypto/tls/conn.go
+++ b/libgo/go/crypto/tls/conn.go
@@ -289,22 +289,6 @@
 	return
 }
 
-// extractPaddingSSL30 is a replacement for extractPadding in the case that the
-// protocol version is SSLv3. In this version, the contents of the padding
-// are random and cannot be checked.
-func extractPaddingSSL30(payload []byte) (toRemove int, good byte) {
-	if len(payload) < 1 {
-		return 0, 0
-	}
-
-	paddingLen := int(payload[len(payload)-1]) + 1
-	if paddingLen > len(payload) {
-		return 0, 0
-	}
-
-	return paddingLen, 255
-}
-
 func roundUp(a, b int) int {
 	return a + (b-a%b)%b
 }
@@ -382,11 +366,7 @@
 			// computing the digest. This makes the MAC roughly constant time as
 			// long as the digest computation is constant time and does not
 			// affect the subsequent write, modulo cache effects.
-			if hc.version == VersionSSL30 {
-				paddingLen, paddingGood = extractPaddingSSL30(payload)
-			} else {
-				paddingLen, paddingGood = extractPadding(payload)
-			}
+			paddingLen, paddingGood = extractPadding(payload)
 		default:
 			panic("unknown cipher type")
 		}
@@ -1047,8 +1027,6 @@
 		m = &certificateVerifyMsg{
 			hasSignatureAlgorithm: c.vers >= VersionTLS12,
 		}
-	case typeNextProtocol:
-		m = new(nextProtoMsg)
 	case typeFinished:
 		m = new(finishedMsg)
 	case typeEncryptedExtensions:
@@ -1086,10 +1064,10 @@
 			return 0, errClosed
 		}
 		if atomic.CompareAndSwapInt32(&c.activeCall, x, x+2) {
-			defer atomic.AddInt32(&c.activeCall, -2)
 			break
 		}
 	}
+	defer atomic.AddInt32(&c.activeCall, -2)
 
 	if err := c.Handshake(); err != nil {
 		return 0, err
@@ -1110,7 +1088,7 @@
 		return 0, errShutdown
 	}
 
-	// SSL 3.0 and TLS 1.0 are susceptible to a chosen-plaintext
+	// TLS 1.0 is susceptible to a chosen-plaintext
 	// attack when using block mode ciphers due to predictable IVs.
 	// This can be prevented by splitting each Application Data
 	// record into two records, effectively randomizing the IV.
@@ -1120,7 +1098,7 @@
 	// https://www.imperialviolet.org/2012/01/15/beastfollowup.html
 
 	var m int
-	if len(b) > 1 && c.vers <= VersionTLS10 {
+	if len(b) > 1 && c.vers == VersionTLS10 {
 		if _, ok := c.out.cipher.(cipher.BlockMode); ok {
 			n, err := c.writeRecordLocked(recordTypeApplicationData, b[:1])
 			if err != nil {
@@ -1366,7 +1344,7 @@
 	if c.handshakeErr == nil {
 		c.handshakes++
 	} else {
-		// If an error occurred during the hadshake try to flush the
+		// If an error occurred during the handshake try to flush the
 		// alert that might be left in the buffer.
 		c.flush()
 	}
diff --git a/libgo/go/crypto/tls/conn_test.go b/libgo/go/crypto/tls/conn_test.go
index 57f6105..78935b1 100644
--- a/libgo/go/crypto/tls/conn_test.go
+++ b/libgo/go/crypto/tls/conn_test.go
@@ -72,8 +72,6 @@
 
 var certFooExampleCom = `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`
 
-var certDoubleWildcardExampleCom = `308201753082011fa003020102021039d262d8538db8ffba30d204e02ddeb5300d06092a864886f70d01010b050030123110300e060355040a130741636d6520436f301e170d3136303831373231343331335a170d3137303831373231343331335a30123110300e060355040a130741636d6520436f305c300d06092a864886f70d0101010500034b003048024100abb6bd84b8b9be3fb9415d00f22b4ddcaec7c99855b9d818c09003e084578430e5cfd2e35faa3561f036d496aa43a9ca6e6cf23c72a763c04ae324004f6cbdbb0203010001a351304f300e0603551d0f0101ff0404030205a030130603551d25040c300a06082b06010505070301300c0603551d130101ff04023000301a0603551d1104133011820f2a2e2a2e6578616d706c652e636f6d300d06092a864886f70d01010b05000341004837521004a5b6bc7ad5d6c0dae60bb7ee0fa5e4825be35e2bb6ef07ee29396ca30ceb289431bcfd363888ba2207139933ac7c6369fa8810c819b2e2966abb4b`
-
 func TestCertificateSelection(t *testing.T) {
 	config := Config{
 		Certificates: []Certificate{
@@ -86,9 +84,6 @@
 			{
 				Certificate: [][]byte{fromHex(certFooExampleCom)},
 			},
-			{
-				Certificate: [][]byte{fromHex(certDoubleWildcardExampleCom)},
-			},
 		},
 	}
 
@@ -124,11 +119,8 @@
 	if n := pointerToIndex(certificateForName("foo.example.com")); n != 2 {
 		t.Errorf("foo.example.com returned certificate %d, not 2", n)
 	}
-	if n := pointerToIndex(certificateForName("foo.bar.example.com")); n != 3 {
-		t.Errorf("foo.bar.example.com returned certificate %d, not 3", n)
-	}
-	if n := pointerToIndex(certificateForName("foo.bar.baz.example.com")); n != 0 {
-		t.Errorf("foo.bar.baz.example.com returned certificate %d, not 0", n)
+	if n := pointerToIndex(certificateForName("foo.bar.example.com")); n != 0 {
+		t.Errorf("foo.bar.example.com returned certificate %d, not 0", n)
 	}
 }
 
diff --git a/libgo/go/crypto/tls/example_test.go b/libgo/go/crypto/tls/example_test.go
new file mode 100644
index 0000000..c88f8ad
--- /dev/null
+++ b/libgo/go/crypto/tls/example_test.go
@@ -0,0 +1,238 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package tls_test
+
+import (
+	"crypto/tls"
+	"crypto/x509"
+	"errors"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"time"
+)
+
+// zeroSource is an io.Reader that returns an unlimited number of zero bytes.
+type zeroSource struct{}
+
+func (zeroSource) Read(b []byte) (n int, err error) {
+	for i := range b {
+		b[i] = 0
+	}
+
+	return len(b), nil
+}
+
+func ExampleDial() {
+	// Connecting with a custom root-certificate set.
+
+	const rootPEM = `
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----`
+
+	// First, create the set of root certificates. For this example we only
+	// have one. It's also possible to omit this in order to use the
+	// default root set of the current operating system.
+	roots := x509.NewCertPool()
+	ok := roots.AppendCertsFromPEM([]byte(rootPEM))
+	if !ok {
+		panic("failed to parse root certificate")
+	}
+
+	conn, err := tls.Dial("tcp", "mail.google.com:443", &tls.Config{
+		RootCAs: roots,
+	})
+	if err != nil {
+		panic("failed to connect: " + err.Error())
+	}
+	conn.Close()
+}
+
+func ExampleConfig_keyLogWriter() {
+	// Debugging TLS applications by decrypting a network traffic capture.
+
+	// WARNING: Use of KeyLogWriter compromises security and should only be
+	// used for debugging.
+
+	// Dummy test HTTP server for the example with insecure random so output is
+	// reproducible.
+	server := httptest.NewUnstartedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
+	server.TLS = &tls.Config{
+		Rand: zeroSource{}, // for example only; don't do this.
+	}
+	server.StartTLS()
+	defer server.Close()
+
+	// Typically the log would go to an open file:
+	// w, err := os.OpenFile("tls-secrets.txt", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
+	w := os.Stdout
+
+	client := &http.Client{
+		Transport: &http.Transport{
+			TLSClientConfig: &tls.Config{
+				KeyLogWriter: w,
+
+				Rand:               zeroSource{}, // for reproducible output; don't do this.
+				InsecureSkipVerify: true,         // test server certificate is not trusted.
+			},
+		},
+	}
+	resp, err := client.Get(server.URL)
+	if err != nil {
+		log.Fatalf("Failed to get URL: %v", err)
+	}
+	resp.Body.Close()
+
+	// The resulting file can be used with Wireshark to decrypt the TLS
+	// connection by setting (Pre)-Master-Secret log filename in SSL Protocol
+	// preferences.
+}
+
+func ExampleLoadX509KeyPair() {
+	cert, err := tls.LoadX509KeyPair("testdata/example-cert.pem", "testdata/example-key.pem")
+	if err != nil {
+		log.Fatal(err)
+	}
+	cfg := &tls.Config{Certificates: []tls.Certificate{cert}}
+	listener, err := tls.Listen("tcp", ":2000", cfg)
+	if err != nil {
+		log.Fatal(err)
+	}
+	_ = listener
+}
+
+func ExampleX509KeyPair() {
+	certPem := []byte(`-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----`)
+	keyPem := []byte(`-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIIrYSSNQFaA2Hwf1duRSxKtLYX5CB04fSeQ6tF1aY/PuoAoGCCqGSM49
+AwEHoUQDQgAEPR3tU2Fta9ktY+6P9G0cWO+0kETA6SFs38GecTyudlHz6xvCdz8q
+EKTcWGekdmdDPsHloRNtsiCa697B2O9IFA==
+-----END EC PRIVATE KEY-----`)
+	cert, err := tls.X509KeyPair(certPem, keyPem)
+	if err != nil {
+		log.Fatal(err)
+	}
+	cfg := &tls.Config{Certificates: []tls.Certificate{cert}}
+	listener, err := tls.Listen("tcp", ":2000", cfg)
+	if err != nil {
+		log.Fatal(err)
+	}
+	_ = listener
+}
+
+func ExampleX509KeyPair_httpServer() {
+	certPem := []byte(`-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----`)
+	keyPem := []byte(`-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIIrYSSNQFaA2Hwf1duRSxKtLYX5CB04fSeQ6tF1aY/PuoAoGCCqGSM49
+AwEHoUQDQgAEPR3tU2Fta9ktY+6P9G0cWO+0kETA6SFs38GecTyudlHz6xvCdz8q
+EKTcWGekdmdDPsHloRNtsiCa697B2O9IFA==
+-----END EC PRIVATE KEY-----`)
+	cert, err := tls.X509KeyPair(certPem, keyPem)
+	if err != nil {
+		log.Fatal(err)
+	}
+	cfg := &tls.Config{Certificates: []tls.Certificate{cert}}
+	srv := &http.Server{
+		TLSConfig:    cfg,
+		ReadTimeout:  time.Minute,
+		WriteTimeout: time.Minute,
+	}
+	log.Fatal(srv.ListenAndServeTLS("", ""))
+}
+
+func ExampleConfig_verifyPeerCertificate() {
+	// VerifyPeerCertificate can be used to replace and customize certificate
+	// verification. This example shows a VerifyPeerCertificate implementation
+	// that will be approximately equivalent to what crypto/tls does normally.
+
+	config := &tls.Config{
+		// Set InsecureSkipVerify to skip the default validation we are
+		// replacing. This will not disable VerifyPeerCertificate.
+		InsecureSkipVerify: true,
+
+		// While packages like net/http will implicitly set ServerName, the
+		// VerifyPeerCertificate callback can't access that value, so it has to be set
+		// explicitly here or in VerifyPeerCertificate on the client side. If in
+		// an http.Transport DialTLS callback, this can be obtained by passing
+		// the addr argument to net.SplitHostPort.
+		ServerName: "example.com",
+
+		// On the server side, set ClientAuth to require client certificates (or
+		// VerifyPeerCertificate will run anyway and panic accessing certs[0])
+		// but not verify them with the default verifier.
+		// ClientAuth: tls.RequireAnyClientCert,
+	}
+
+	config.VerifyPeerCertificate = func(certificates [][]byte, _ [][]*x509.Certificate) error {
+		certs := make([]*x509.Certificate, len(certificates))
+		for i, asn1Data := range certificates {
+			cert, err := x509.ParseCertificate(asn1Data)
+			if err != nil {
+				return errors.New("tls: failed to parse certificate from server: " + err.Error())
+			}
+			certs[i] = cert
+		}
+
+		opts := x509.VerifyOptions{
+			Roots:         config.RootCAs, // On the server side, use config.ClientCAs.
+			DNSName:       config.ServerName,
+			Intermediates: x509.NewCertPool(),
+			// On the server side, set KeyUsages to ExtKeyUsageClientAuth. The
+			// default value is appropriate for clients side verification.
+			// KeyUsages:     []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth},
+		}
+		for _, cert := range certs[1:] {
+			opts.Intermediates.AddCert(cert)
+		}
+		_, err := certs[0].Verify(opts)
+		return err
+	}
+
+	// Note that when InsecureSkipVerify and VerifyPeerCertificate are in use,
+	// ConnectionState.VerifiedChains will be nil.
+}
diff --git a/libgo/go/crypto/tls/generate_cert.go b/libgo/go/crypto/tls/generate_cert.go
index 7329d97..f1d69c4 100644
--- a/libgo/go/crypto/tls/generate_cert.go
+++ b/libgo/go/crypto/tls/generate_cert.go
@@ -78,7 +78,7 @@
 		log.Fatalf("Unrecognized elliptic curve: %q", *ecdsaCurve)
 	}
 	if err != nil {
-		log.Fatalf("Failed to generate private key: %s", err)
+		log.Fatalf("Failed to generate private key: %v", err)
 	}
 
 	var notBefore time.Time
@@ -87,7 +87,7 @@
 	} else {
 		notBefore, err = time.Parse("Jan 2 15:04:05 2006", *validFrom)
 		if err != nil {
-			log.Fatalf("Failed to parse creation date: %s", err)
+			log.Fatalf("Failed to parse creation date: %v", err)
 		}
 	}
 
@@ -96,7 +96,7 @@
 	serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
 	serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
 	if err != nil {
-		log.Fatalf("Failed to generate serial number: %s", err)
+		log.Fatalf("Failed to generate serial number: %v", err)
 	}
 
 	template := x509.Certificate{
@@ -128,24 +128,24 @@
 
 	derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, publicKey(priv), priv)
 	if err != nil {
-		log.Fatalf("Failed to create certificate: %s", err)
+		log.Fatalf("Failed to create certificate: %v", err)
 	}
 
 	certOut, err := os.Create("cert.pem")
 	if err != nil {
-		log.Fatalf("Failed to open cert.pem for writing: %s", err)
+		log.Fatalf("Failed to open cert.pem for writing: %v", err)
 	}
 	if err := pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes}); err != nil {
-		log.Fatalf("Failed to write data to cert.pem: %s", err)
+		log.Fatalf("Failed to write data to cert.pem: %v", err)
 	}
 	if err := certOut.Close(); err != nil {
-		log.Fatalf("Error closing cert.pem: %s", err)
+		log.Fatalf("Error closing cert.pem: %v", err)
 	}
 	log.Print("wrote cert.pem\n")
 
 	keyOut, err := os.OpenFile("key.pem", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
 	if err != nil {
-		log.Fatalf("Failed to open key.pem for writing:", err)
+		log.Fatalf("Failed to open key.pem for writing: %v", err)
 		return
 	}
 	privBytes, err := x509.MarshalPKCS8PrivateKey(priv)
@@ -153,10 +153,10 @@
 		log.Fatalf("Unable to marshal private key: %v", err)
 	}
 	if err := pem.Encode(keyOut, &pem.Block{Type: "PRIVATE KEY", Bytes: privBytes}); err != nil {
-		log.Fatalf("Failed to write data to key.pem: %s", err)
+		log.Fatalf("Failed to write data to key.pem: %v", err)
 	}
 	if err := keyOut.Close(); err != nil {
-		log.Fatalf("Error closing key.pem: %s", err)
+		log.Fatalf("Error closing key.pem: %v", err)
 	}
 	log.Print("wrote key.pem\n")
 }
diff --git a/libgo/go/crypto/tls/handshake_client.go b/libgo/go/crypto/tls/handshake_client.go
index ed000eb..4fb528c 100644
--- a/libgo/go/crypto/tls/handshake_client.go
+++ b/libgo/go/crypto/tls/handshake_client.go
@@ -16,7 +16,6 @@
 	"fmt"
 	"io"
 	"net"
-	"strconv"
 	"strings"
 	"sync/atomic"
 	"time"
@@ -50,7 +49,7 @@
 		return nil, nil, errors.New("tls: NextProtos values too large")
 	}
 
-	supportedVersions := config.supportedVersions(true)
+	supportedVersions := config.supportedVersions()
 	if len(supportedVersions) == 0 {
 		return nil, nil, errors.New("tls: no supported versions satisfy MinVersion and MaxVersion")
 	}
@@ -73,7 +72,6 @@
 		serverName:                   hostnameInSNI(config.ServerName),
 		supportedCurves:              config.curvePreferences(),
 		supportedPoints:              []uint8{pointFormatUncompressed},
-		nextProtoNeg:                 len(config.NextProtos) > 0,
 		secureRenegotiationSupported: true,
 		alpnProtocols:                config.NextProtos,
 		supportedVersions:            supportedVersions,
@@ -340,7 +338,7 @@
 		peerVersion = serverHello.supportedVersion
 	}
 
-	vers, ok := c.config.mutualVersion(true, []uint16{peerVersion})
+	vers, ok := c.config.mutualVersion([]uint16{peerVersion})
 	if !ok {
 		c.sendAlert(alertProtocolVersion)
 		return fmt.Errorf("tls: server selected unsupported protocol version %x", peerVersion)
@@ -519,7 +517,7 @@
 		certRequested = true
 		hs.finishedHash.Write(certReq.marshal())
 
-		cri := certificateRequestInfoFromMsg(certReq)
+		cri := certificateRequestInfoFromMsg(c.vers, certReq)
 		if chainToSend, err = c.getClientCertificate(cri); err != nil {
 			c.sendAlert(alertInternalError)
 			return err
@@ -563,9 +561,7 @@
 	}
 
 	if chainToSend != nil && len(chainToSend.Certificate) > 0 {
-		certVerify := &certificateVerifyMsg{
-			hasSignatureAlgorithm: c.vers >= VersionTLS12,
-		}
+		certVerify := &certificateVerifyMsg{}
 
 		key, ok := chainToSend.PrivateKey.(crypto.Signer)
 		if !ok {
@@ -573,23 +569,32 @@
 			return fmt.Errorf("tls: client certificate private key of type %T does not implement crypto.Signer", chainToSend.PrivateKey)
 		}
 
-		signatureAlgorithm, sigType, hashFunc, err := pickSignatureAlgorithm(key.Public(), certReq.supportedSignatureAlgorithms, supportedSignatureAlgorithmsTLS12, c.vers)
-		if err != nil {
-			c.sendAlert(alertInternalError)
-			return err
-		}
-		// SignatureAndHashAlgorithm was introduced in TLS 1.2.
-		if certVerify.hasSignatureAlgorithm {
+		var sigType uint8
+		var sigHash crypto.Hash
+		if c.vers >= VersionTLS12 {
+			signatureAlgorithm, err := selectSignatureScheme(c.vers, chainToSend, certReq.supportedSignatureAlgorithms)
+			if err != nil {
+				c.sendAlert(alertIllegalParameter)
+				return err
+			}
+			sigType, sigHash, err = typeAndHashFromSignatureScheme(signatureAlgorithm)
+			if err != nil {
+				return c.sendAlert(alertInternalError)
+			}
+			certVerify.hasSignatureAlgorithm = true
 			certVerify.signatureAlgorithm = signatureAlgorithm
+		} else {
+			sigType, sigHash, err = legacyTypeAndHashFromPublicKey(key.Public())
+			if err != nil {
+				c.sendAlert(alertIllegalParameter)
+				return err
+			}
 		}
-		signed, err := hs.finishedHash.hashForClientCertificate(sigType, hashFunc, hs.masterSecret)
-		if err != nil {
-			c.sendAlert(alertInternalError)
-			return err
-		}
-		signOpts := crypto.SignerOpts(hashFunc)
+
+		signed := hs.finishedHash.hashForClientCertificate(sigType, sigHash, hs.masterSecret)
+		signOpts := crypto.SignerOpts(sigHash)
 		if sigType == signatureRSAPSS {
-			signOpts = &rsa.PSSOptions{SaltLength: rsa.PSSSaltLengthEqualsHash, Hash: hashFunc}
+			signOpts = &rsa.PSSOptions{SaltLength: rsa.PSSSaltLengthEqualsHash, Hash: sigHash}
 		}
 		certVerify.signature, err = key.Sign(c.config.rand(), signed, signOpts)
 		if err != nil {
@@ -673,26 +678,14 @@
 		}
 	}
 
-	clientDidNPN := hs.hello.nextProtoNeg
 	clientDidALPN := len(hs.hello.alpnProtocols) > 0
-	serverHasNPN := hs.serverHello.nextProtoNeg
 	serverHasALPN := len(hs.serverHello.alpnProtocol) > 0
 
-	if !clientDidNPN && serverHasNPN {
-		c.sendAlert(alertHandshakeFailure)
-		return false, errors.New("tls: server advertised unrequested NPN extension")
-	}
-
 	if !clientDidALPN && serverHasALPN {
 		c.sendAlert(alertHandshakeFailure)
 		return false, errors.New("tls: server advertised unrequested ALPN extension")
 	}
 
-	if serverHasNPN && serverHasALPN {
-		c.sendAlert(alertHandshakeFailure)
-		return false, errors.New("tls: server advertised both NPN and ALPN extensions")
-	}
-
 	if serverHasALPN {
 		c.clientProtocol = hs.serverHello.alpnProtocol
 		c.clientProtocolFallback = false
@@ -784,18 +777,6 @@
 	if _, err := c.writeRecord(recordTypeChangeCipherSpec, []byte{1}); err != nil {
 		return err
 	}
-	if hs.serverHello.nextProtoNeg {
-		nextProto := new(nextProtoMsg)
-		proto, fallback := mutualProtocol(c.config.NextProtos, hs.serverHello.nextProtos)
-		nextProto.proto = proto
-		c.clientProtocol = proto
-		c.clientProtocolFallback = fallback
-
-		hs.finishedHash.Write(nextProto.marshal())
-		if _, err := c.writeRecord(recordTypeHandshake, nextProto.marshal()); err != nil {
-			return err
-		}
-	}
 
 	finished := new(finishedMsg)
 	finished.verifyData = hs.finishedHash.clientSum(hs.masterSecret)
@@ -868,7 +849,12 @@
 
 // certificateRequestInfoFromMsg generates a CertificateRequestInfo from a TLS
 // <= 1.2 CertificateRequest, making an effort to fill in missing information.
-func certificateRequestInfoFromMsg(certReq *certificateRequestMsg) *CertificateRequestInfo {
+func certificateRequestInfoFromMsg(vers uint16, certReq *certificateRequestMsg) *CertificateRequestInfo {
+	cri := &CertificateRequestInfo{
+		AcceptableCAs: certReq.certificateAuthorities,
+		Version:       vers,
+	}
+
 	var rsaAvail, ecAvail bool
 	for _, certType := range certReq.certificateTypes {
 		switch certType {
@@ -879,10 +865,6 @@
 		}
 	}
 
-	cri := &CertificateRequestInfo{
-		AcceptableCAs: certReq.certificateAuthorities,
-	}
-
 	if !certReq.hasSignatureAlgorithm {
 		// Prior to TLS 1.2, the signature schemes were not
 		// included in the certificate request message. In this
@@ -903,7 +885,11 @@
 	// See RFC 5246, Section 7.4.4 (where it calls this "somewhat complicated").
 	cri.SignatureSchemes = make([]SignatureScheme, 0, len(certReq.supportedSignatureAlgorithms))
 	for _, sigScheme := range certReq.supportedSignatureAlgorithms {
-		switch signatureFromSignatureScheme(sigScheme) {
+		sigType, _, err := typeAndHashFromSignatureScheme(sigScheme)
+		if err != nil {
+			continue
+		}
+		switch sigType {
 		case signatureECDSA, signatureEd25519:
 			if ecAvail {
 				cri.SignatureSchemes = append(cri.SignatureSchemes, sigScheme)
@@ -923,43 +909,11 @@
 		return c.config.GetClientCertificate(cri)
 	}
 
-	// We need to search our list of client certs for one
-	// where SignatureAlgorithm is acceptable to the server and the
-	// Issuer is in AcceptableCAs.
-	for i, chain := range c.config.Certificates {
-		sigOK := false
-		for _, alg := range signatureSchemesForCertificate(c.vers, &chain) {
-			if isSupportedSignatureAlgorithm(alg, cri.SignatureSchemes) {
-				sigOK = true
-				break
-			}
-		}
-		if !sigOK {
+	for _, chain := range c.config.Certificates {
+		if err := cri.SupportsCertificate(&chain); err != nil {
 			continue
 		}
-
-		if len(cri.AcceptableCAs) == 0 {
-			return &chain, nil
-		}
-
-		for j, cert := range chain.Certificate {
-			x509Cert := chain.Leaf
-			// Parse the certificate if this isn't the leaf node, or if
-			// chain.Leaf was nil.
-			if j != 0 || x509Cert == nil {
-				var err error
-				if x509Cert, err = x509.ParseCertificate(cert); err != nil {
-					c.sendAlert(alertInternalError)
-					return nil, errors.New("tls: failed to parse configured certificate chain #" + strconv.Itoa(i) + ": " + err.Error())
-				}
-			}
-
-			for _, ca := range cri.AcceptableCAs {
-				if bytes.Equal(x509Cert.RawIssuer, ca) {
-					return &chain, nil
-				}
-			}
-		}
+		return &chain, nil
 	}
 
 	// No acceptable certificate found. Don't send a certificate.
@@ -991,7 +945,7 @@
 	return protos[0], true
 }
 
-// hostnameInSNI converts name into an approriate hostname for SNI.
+// hostnameInSNI converts name into an appropriate hostname for SNI.
 // Literal IP addresses and absolute FQDNs are not permitted as SNI values.
 // See RFC 6066, Section 3.
 func hostnameInSNI(name string) string {
diff --git a/libgo/go/crypto/tls/handshake_client_test.go b/libgo/go/crypto/tls/handshake_client_test.go
index 1b6b9a1..6bd3c37 100644
--- a/libgo/go/crypto/tls/handshake_client_test.go
+++ b/libgo/go/crypto/tls/handshake_client_test.go
@@ -499,21 +499,15 @@
 }
 
 func runClientTestForVersion(t *testing.T, template *clientTest, version, option string) {
-	t.Run(version, func(t *testing.T) {
-		// Make a deep copy of the template before going parallel.
-		test := *template
-		if template.config != nil {
-			test.config = template.config.Clone()
-		}
+	// Make a deep copy of the template before going parallel.
+	test := *template
+	if template.config != nil {
+		test.config = template.config.Clone()
+	}
+	test.name = version + "-" + test.name
+	test.args = append([]string{option}, test.args...)
 
-		if !*update {
-			t.Parallel()
-		}
-
-		test.name = version + "-" + test.name
-		test.args = append([]string{option}, test.args...)
-		test.run(t, *update)
-	})
+	runTestAndUpdateIfNeeded(t, version, test.run, false)
 }
 
 func runClientTestTLS10(t *testing.T, template *clientTest) {
@@ -843,19 +837,8 @@
 		cert:   testRSAPSSCertificate,
 		key:    testRSAPrivateKey,
 	}
-	runClientTestTLS13(t, test)
-
-	// In our TLS 1.2 client, RSA-PSS is only supported for server certificates.
-	// See Issue 32425.
-	test = &clientTest{
-		name: "ClientCert-RSA-RSAPSS",
-		args: []string{"-cipher", "AES128", "-Verify", "1", "-client_sigalgs",
-			"rsa_pkcs1_sha256", "-sigalgs", "rsa_pss_rsae_sha256"},
-		config: config,
-		cert:   testRSAPSSCertificate,
-		key:    testRSAPrivateKey,
-	}
 	runClientTestTLS12(t, test)
+	runClientTestTLS13(t, test)
 }
 
 func TestHandshakeClientCertRSAPKCS1v15(t *testing.T) {
diff --git a/libgo/go/crypto/tls/handshake_client_tls13.go b/libgo/go/crypto/tls/handshake_client_tls13.go
index 82207eb..8994591 100644
--- a/libgo/go/crypto/tls/handshake_client_tls13.go
+++ b/libgo/go/crypto/tls/handshake_client_tls13.go
@@ -123,9 +123,7 @@
 		return errors.New("tls: server sent an incorrect legacy version")
 	}
 
-	if hs.serverHello.nextProtoNeg ||
-		len(hs.serverHello.nextProtos) != 0 ||
-		hs.serverHello.ocspStapling ||
+	if hs.serverHello.ocspStapling ||
 		hs.serverHello.ticketSupported ||
 		hs.serverHello.secureRenegotiationSupported ||
 		len(hs.serverHello.secureRenegotiation) != 0 ||
@@ -450,23 +448,21 @@
 	// See RFC 8446, Section 4.4.3.
 	if !isSupportedSignatureAlgorithm(certVerify.signatureAlgorithm, supportedSignatureAlgorithms) {
 		c.sendAlert(alertIllegalParameter)
-		return errors.New("tls: invalid certificate signature algorithm")
+		return errors.New("tls: certificate used with invalid signature algorithm")
 	}
-	sigType := signatureFromSignatureScheme(certVerify.signatureAlgorithm)
-	sigHash, err := hashFromSignatureScheme(certVerify.signatureAlgorithm)
-	if sigType == 0 || err != nil {
-		c.sendAlert(alertInternalError)
-		return err
+	sigType, sigHash, err := typeAndHashFromSignatureScheme(certVerify.signatureAlgorithm)
+	if err != nil {
+		return c.sendAlert(alertInternalError)
 	}
 	if sigType == signaturePKCS1v15 || sigHash == crypto.SHA1 {
 		c.sendAlert(alertIllegalParameter)
-		return errors.New("tls: invalid certificate signature algorithm")
+		return errors.New("tls: certificate used with invalid signature algorithm")
 	}
 	signed := signedMessage(sigHash, serverSignatureContext, hs.transcript)
 	if err := verifyHandshakeSignature(sigType, c.peerCertificates[0].PublicKey,
 		sigHash, signed, certVerify.signature); err != nil {
 		c.sendAlert(alertDecryptError)
-		return errors.New("tls: invalid certificate signature")
+		return errors.New("tls: invalid signature by the server certificate: " + err.Error())
 	}
 
 	hs.transcript.Write(certVerify.marshal())
@@ -530,6 +526,7 @@
 	cert, err := c.getClientCertificate(&CertificateRequestInfo{
 		AcceptableCAs:    hs.certReq.certificateAuthorities,
 		SignatureSchemes: hs.certReq.supportedSignatureAlgorithms,
+		Version:          c.vers,
 	})
 	if err != nil {
 		return err
@@ -554,29 +551,16 @@
 	certVerifyMsg := new(certificateVerifyMsg)
 	certVerifyMsg.hasSignatureAlgorithm = true
 
-	supportedAlgs := signatureSchemesForCertificate(c.vers, cert)
-	if supportedAlgs == nil {
-		c.sendAlert(alertInternalError)
-		return unsupportedCertificateError(cert)
-	}
-	// Pick signature scheme in server preference order, as the client
-	// preference order is not configurable.
-	for _, preferredAlg := range hs.certReq.supportedSignatureAlgorithms {
-		if isSupportedSignatureAlgorithm(preferredAlg, supportedAlgs) {
-			certVerifyMsg.signatureAlgorithm = preferredAlg
-			break
-		}
-	}
-	if certVerifyMsg.signatureAlgorithm == 0 {
+	certVerifyMsg.signatureAlgorithm, err = selectSignatureScheme(c.vers, cert, hs.certReq.supportedSignatureAlgorithms)
+	if err != nil {
 		// getClientCertificate returned a certificate incompatible with the
 		// CertificateRequestInfo supported signature algorithms.
 		c.sendAlert(alertHandshakeFailure)
-		return errors.New("tls: server doesn't support selected certificate")
+		return err
 	}
 
-	sigType := signatureFromSignatureScheme(certVerifyMsg.signatureAlgorithm)
-	sigHash, err := hashFromSignatureScheme(certVerifyMsg.signatureAlgorithm)
-	if sigType == 0 || err != nil {
+	sigType, sigHash, err := typeAndHashFromSignatureScheme(certVerifyMsg.signatureAlgorithm)
+	if err != nil {
 		return c.sendAlert(alertInternalError)
 	}
 
diff --git a/libgo/go/crypto/tls/handshake_messages.go b/libgo/go/crypto/tls/handshake_messages.go
index 2d21377..b5f81e4 100644
--- a/libgo/go/crypto/tls/handshake_messages.go
+++ b/libgo/go/crypto/tls/handshake_messages.go
@@ -6,8 +6,9 @@
 
 import (
 	"fmt"
-	"golang.org/x/crypto/cryptobyte"
 	"strings"
+
+	"golang.org/x/crypto/cryptobyte"
 )
 
 // The marshalingFunction type is an adapter to allow the use of ordinary
@@ -72,7 +73,6 @@
 	sessionId                        []byte
 	cipherSuites                     []uint16
 	compressionMethods               []uint8
-	nextProtoNeg                     bool
 	serverName                       string
 	ocspStapling                     bool
 	supportedCurves                  []CurveID
@@ -121,11 +121,6 @@
 		bWithoutExtensions := *b
 
 		b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-			if m.nextProtoNeg {
-				// draft-agl-tls-nextprotoneg-04
-				b.AddUint16(extensionNextProtoNeg)
-				b.AddUint16(0) // empty extension_data
-			}
 			if len(m.serverName) > 0 {
 				// RFC 6066, Section 3
 				b.AddUint16(extensionServerName)
@@ -426,9 +421,6 @@
 					return false
 				}
 			}
-		case extensionNextProtoNeg:
-			// draft-agl-tls-nextprotoneg-04
-			m.nextProtoNeg = true
 		case extensionStatusRequest:
 			// RFC 4366, Section 3.6
 			var statusType uint8
@@ -604,8 +596,6 @@
 	sessionId                    []byte
 	cipherSuite                  uint16
 	compressionMethod            uint8
-	nextProtoNeg                 bool
-	nextProtos                   []string
 	ocspStapling                 bool
 	ticketSupported              bool
 	secureRenegotiationSupported bool
@@ -616,6 +606,7 @@
 	serverShare                  keyShare
 	selectedIdentityPresent      bool
 	selectedIdentity             uint16
+	supportedPoints              []uint8
 
 	// HelloRetryRequest extensions
 	cookie        []byte
@@ -643,16 +634,6 @@
 		bWithoutExtensions := *b
 
 		b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-			if m.nextProtoNeg {
-				b.AddUint16(extensionNextProtoNeg)
-				b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-					for _, proto := range m.nextProtos {
-						b.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
-							b.AddBytes([]byte(proto))
-						})
-					}
-				})
-			}
 			if m.ocspStapling {
 				b.AddUint16(extensionStatusRequest)
 				b.AddUint16(0) // empty extension_data
@@ -727,6 +708,14 @@
 					b.AddUint16(uint16(m.selectedGroup))
 				})
 			}
+			if len(m.supportedPoints) > 0 {
+				b.AddUint16(extensionSupportedPoints)
+				b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
+					b.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
+						b.AddBytes(m.supportedPoints)
+					})
+				})
+			}
 
 			extensionsPresent = len(b.BytesOrPanic()) > 2
 		})
@@ -771,16 +760,6 @@
 		}
 
 		switch extension {
-		case extensionNextProtoNeg:
-			m.nextProtoNeg = true
-			for !extData.Empty() {
-				var proto cryptobyte.String
-				if !extData.ReadUint8LengthPrefixed(&proto) ||
-					proto.Empty() {
-					return false
-				}
-				m.nextProtos = append(m.nextProtos, string(proto))
-			}
 		case extensionStatusRequest:
 			m.ocspStapling = true
 		case extensionSessionTicket:
@@ -841,6 +820,12 @@
 			if !extData.ReadUint16(&m.selectedIdentity) {
 				return false
 			}
+		case extensionSupportedPoints:
+			// RFC 4492, Section 5.1.2
+			if !readUint8LengthPrefixed(&extData, &m.supportedPoints) ||
+				len(m.supportedPoints) == 0 {
+				return false
+			}
 		default:
 			// Ignore unknown extensions.
 			continue
@@ -1579,66 +1564,6 @@
 		s.Empty()
 }
 
-type nextProtoMsg struct {
-	raw   []byte
-	proto string
-}
-
-func (m *nextProtoMsg) marshal() []byte {
-	if m.raw != nil {
-		return m.raw
-	}
-	l := len(m.proto)
-	if l > 255 {
-		l = 255
-	}
-
-	padding := 32 - (l+2)%32
-	length := l + padding + 2
-	x := make([]byte, length+4)
-	x[0] = typeNextProtocol
-	x[1] = uint8(length >> 16)
-	x[2] = uint8(length >> 8)
-	x[3] = uint8(length)
-
-	y := x[4:]
-	y[0] = byte(l)
-	copy(y[1:], []byte(m.proto[0:l]))
-	y = y[1+l:]
-	y[0] = byte(padding)
-
-	m.raw = x
-
-	return x
-}
-
-func (m *nextProtoMsg) unmarshal(data []byte) bool {
-	m.raw = data
-
-	if len(data) < 5 {
-		return false
-	}
-	data = data[4:]
-	protoLen := int(data[0])
-	data = data[1:]
-	if len(data) < protoLen {
-		return false
-	}
-	m.proto = string(data[0:protoLen])
-	data = data[protoLen:]
-
-	if len(data) < 1 {
-		return false
-	}
-	paddingLen := int(data[0])
-	data = data[1:]
-	if len(data) != paddingLen {
-		return false
-	}
-
-	return true
-}
-
 type certificateRequestMsg struct {
 	raw []byte
 	// hasSignatureAlgorithm indicates whether this message includes a list of
diff --git a/libgo/go/crypto/tls/handshake_messages_test.go b/libgo/go/crypto/tls/handshake_messages_test.go
index 21beb8e..bef7570 100644
--- a/libgo/go/crypto/tls/handshake_messages_test.go
+++ b/libgo/go/crypto/tls/handshake_messages_test.go
@@ -26,7 +26,6 @@
 	},
 	&certificateStatusMsg{},
 	&clientKeyExchangeMsg{},
-	&nextProtoMsg{},
 	&newSessionTicketMsg{},
 	&sessionState{},
 	&sessionStateTLS13{},
@@ -128,9 +127,6 @@
 	}
 	m.compressionMethods = randomBytes(rand.Intn(63)+1, rand)
 	if rand.Intn(10) > 5 {
-		m.nextProtoNeg = true
-	}
-	if rand.Intn(10) > 5 {
 		m.serverName = randomString(rand.Intn(255), rand)
 		for strings.HasSuffix(m.serverName, ".") {
 			m.serverName = m.serverName[:len(m.serverName)-1]
@@ -205,13 +201,7 @@
 	m.sessionId = randomBytes(rand.Intn(32), rand)
 	m.cipherSuite = uint16(rand.Int31())
 	m.compressionMethod = uint8(rand.Intn(256))
-
-	if rand.Intn(10) > 5 {
-		m.nextProtoNeg = true
-		for i := 0; i < rand.Intn(10); i++ {
-			m.nextProtos = append(m.nextProtos, randomString(20, rand))
-		}
-	}
+	m.supportedPoints = randomBytes(rand.Intn(5)+1, rand)
 
 	if rand.Intn(10) > 5 {
 		m.ocspStapling = true
@@ -308,12 +298,6 @@
 	return reflect.ValueOf(m)
 }
 
-func (*nextProtoMsg) Generate(rand *rand.Rand, size int) reflect.Value {
-	m := &nextProtoMsg{}
-	m.proto = randomString(rand.Intn(255), rand)
-	return reflect.ValueOf(m)
-}
-
 func (*newSessionTicketMsg) Generate(rand *rand.Rand, size int) reflect.Value {
 	m := &newSessionTicketMsg{}
 	m.ticket = randomBytes(rand.Intn(4), rand)
diff --git a/libgo/go/crypto/tls/handshake_server.go b/libgo/go/crypto/tls/handshake_server.go
index a3d8848..b16415a 100644
--- a/libgo/go/crypto/tls/handshake_server.go
+++ b/libgo/go/crypto/tls/handshake_server.go
@@ -24,7 +24,7 @@
 	clientHello  *clientHelloMsg
 	hello        *serverHelloMsg
 	suite        *cipherSuite
-	ecdhOk       bool
+	ecdheOk      bool
 	ecSignOk     bool
 	rsaDecryptOk bool
 	rsaSignOk    bool
@@ -157,7 +157,7 @@
 	if len(clientHello.supportedVersions) == 0 {
 		clientVersions = supportedVersionsFromMax(clientHello.vers)
 	}
-	c.vers, ok = c.config.mutualVersion(false, clientVersions)
+	c.vers, ok = c.config.mutualVersion(clientVersions)
 	if !ok {
 		c.sendAlert(alertProtocolVersion)
 		return nil, fmt.Errorf("tls: client offered only unsupported versions: %x", clientVersions)
@@ -175,27 +175,6 @@
 	hs.hello = new(serverHelloMsg)
 	hs.hello.vers = c.vers
 
-	supportedCurve := false
-	preferredCurves := c.config.curvePreferences()
-Curves:
-	for _, curve := range hs.clientHello.supportedCurves {
-		for _, supported := range preferredCurves {
-			if supported == curve {
-				supportedCurve = true
-				break Curves
-			}
-		}
-	}
-
-	supportedPointFormat := false
-	for _, pointFormat := range hs.clientHello.supportedPoints {
-		if pointFormat == pointFormatUncompressed {
-			supportedPointFormat = true
-			break
-		}
-	}
-	hs.ecdhOk = supportedCurve && supportedPointFormat
-
 	foundCompression := false
 	// We only support null compression, so check that the client offered it.
 	for _, compression := range hs.clientHello.compressionMethods {
@@ -213,7 +192,7 @@
 	hs.hello.random = make([]byte, 32)
 	serverRandom := hs.hello.random
 	// Downgrade protection canaries. See RFC 8446, Section 4.1.3.
-	maxVers := c.config.maxSupportedVersion(false)
+	maxVers := c.config.maxSupportedVersion()
 	if maxVers >= VersionTLS12 && c.vers < maxVers {
 		if c.vers == VersionTLS12 {
 			copy(serverRandom[24:], downgradeCanaryTLS12)
@@ -244,26 +223,32 @@
 			hs.hello.alpnProtocol = selectedProto
 			c.clientProtocol = selectedProto
 		}
-	} else {
-		// Although sending an empty NPN extension is reasonable, Firefox has
-		// had a bug around this. Best to send nothing at all if
-		// c.config.NextProtos is empty. See
-		// https://golang.org/issue/5445.
-		if hs.clientHello.nextProtoNeg && len(c.config.NextProtos) > 0 {
-			hs.hello.nextProtoNeg = true
-			hs.hello.nextProtos = c.config.NextProtos
-		}
 	}
 
 	hs.cert, err = c.config.getCertificate(clientHelloInfo(c, hs.clientHello))
 	if err != nil {
-		c.sendAlert(alertInternalError)
+		if err == errNoCertificates {
+			c.sendAlert(alertUnrecognizedName)
+		} else {
+			c.sendAlert(alertInternalError)
+		}
 		return err
 	}
 	if hs.clientHello.scts {
 		hs.hello.scts = hs.cert.SignedCertificateTimestamps
 	}
 
+	hs.ecdheOk = supportsECDHE(c.config, hs.clientHello.supportedCurves, hs.clientHello.supportedPoints)
+
+	if hs.ecdheOk {
+		// Although omitting the ec_point_formats extension is permitted, some
+		// old OpenSSL version will refuse to handshake if not present.
+		//
+		// Per RFC 4492, section 5.1.2, implementations MUST support the
+		// uncompressed point format. See golang.org/issue/31943.
+		hs.hello.supportedPoints = []uint8{pointFormatUncompressed}
+	}
+
 	if priv, ok := hs.cert.PrivateKey.(crypto.Signer); ok {
 		switch priv.Public().(type) {
 		case *ecdsa.PublicKey:
@@ -290,6 +275,28 @@
 	return nil
 }
 
+// supportsECDHE returns whether ECDHE key exchanges can be used with this
+// pre-TLS 1.3 client.
+func supportsECDHE(c *Config, supportedCurves []CurveID, supportedPoints []uint8) bool {
+	supportsCurve := false
+	for _, curve := range supportedCurves {
+		if c.supportsCurve(curve) {
+			supportsCurve = true
+			break
+		}
+	}
+
+	supportsPointFormat := false
+	for _, pointFormat := range supportedPoints {
+		if pointFormat == pointFormatUncompressed {
+			supportsPointFormat = true
+			break
+		}
+	}
+
+	return supportsCurve && supportsPointFormat
+}
+
 func (hs *serverHandshakeState) pickCipherSuite() error {
 	c := hs.c
 
@@ -302,12 +309,7 @@
 		supportedList = c.config.cipherSuites()
 	}
 
-	for _, id := range preferenceList {
-		if hs.setCipherSuite(id, supportedList, c.vers) {
-			break
-		}
-	}
-
+	hs.suite = selectCipherSuite(preferenceList, supportedList, hs.cipherSuiteOk)
 	if hs.suite == nil {
 		c.sendAlert(alertHandshakeFailure)
 		return errors.New("tls: no cipher suite supported by both client and server")
@@ -316,7 +318,7 @@
 	for _, id := range hs.clientHello.cipherSuites {
 		if id == TLS_FALLBACK_SCSV {
 			// The client is doing a fallback connection. See RFC 7507.
-			if hs.clientHello.vers < c.config.maxSupportedVersion(false) {
+			if hs.clientHello.vers < c.config.maxSupportedVersion() {
 				c.sendAlert(alertInappropriateFallback)
 				return errors.New("tls: client using inappropriate protocol fallback")
 			}
@@ -327,6 +329,27 @@
 	return nil
 }
 
+func (hs *serverHandshakeState) cipherSuiteOk(c *cipherSuite) bool {
+	if c.flags&suiteECDHE != 0 {
+		if !hs.ecdheOk {
+			return false
+		}
+		if c.flags&suiteECSign != 0 {
+			if !hs.ecSignOk {
+				return false
+			}
+		} else if !hs.rsaSignOk {
+			return false
+		}
+	} else if !hs.rsaDecryptOk {
+		return false
+	}
+	if hs.c.vers < VersionTLS12 && c.flags&suiteTLS12 != 0 {
+		return false
+	}
+	return true
+}
+
 // checkForResumption reports whether we should perform resumption on this connection.
 func (hs *serverHandshakeState) checkForResumption() bool {
 	c := hs.c
@@ -363,7 +386,9 @@
 	}
 
 	// Check that we also support the ciphersuite from the session.
-	if !hs.setCipherSuite(hs.sessionState.cipherSuite, c.config.cipherSuites(), hs.sessionState.vers) {
+	hs.suite = selectCipherSuite([]uint16{hs.sessionState.cipherSuite},
+		c.config.cipherSuites(), hs.cipherSuiteOk)
+	if hs.suite == nil {
 		return false
 	}
 
@@ -467,7 +492,7 @@
 		}
 		if c.vers >= VersionTLS12 {
 			certReq.hasSignatureAlgorithm = true
-			certReq.supportedSignatureAlgorithms = supportedSignatureAlgorithmsTLS12
+			certReq.supportedSignatureAlgorithms = supportedSignatureAlgorithms
 		}
 
 		// An empty list of certificateAuthorities signals to
@@ -562,20 +587,29 @@
 			return unexpectedMessageError(certVerify, msg)
 		}
 
-		// Determine the signature type.
-		_, sigType, hashFunc, err := pickSignatureAlgorithm(pub, []SignatureScheme{certVerify.signatureAlgorithm}, certReq.supportedSignatureAlgorithms, c.vers)
-		if err != nil {
-			c.sendAlert(alertIllegalParameter)
-			return err
+		var sigType uint8
+		var sigHash crypto.Hash
+		if c.vers >= VersionTLS12 {
+			if !isSupportedSignatureAlgorithm(certVerify.signatureAlgorithm, certReq.supportedSignatureAlgorithms) {
+				c.sendAlert(alertIllegalParameter)
+				return errors.New("tls: client certificate used with invalid signature algorithm")
+			}
+			sigType, sigHash, err = typeAndHashFromSignatureScheme(certVerify.signatureAlgorithm)
+			if err != nil {
+				return c.sendAlert(alertInternalError)
+			}
+		} else {
+			sigType, sigHash, err = legacyTypeAndHashFromPublicKey(pub)
+			if err != nil {
+				c.sendAlert(alertIllegalParameter)
+				return err
+			}
 		}
 
-		signed, err := hs.finishedHash.hashForClientCertificate(sigType, hashFunc, hs.masterSecret)
-		if err == nil {
-			err = verifyHandshakeSignature(sigType, pub, hashFunc, signed, certVerify.signature)
-		}
-		if err != nil {
-			c.sendAlert(alertBadCertificate)
-			return errors.New("tls: could not validate signature of connection nonces: " + err.Error())
+		signed := hs.finishedHash.hashForClientCertificate(sigType, sigHash, hs.masterSecret)
+		if err := verifyHandshakeSignature(sigType, pub, sigHash, signed, certVerify.signature); err != nil {
+			c.sendAlert(alertDecryptError)
+			return errors.New("tls: invalid signature by the client certificate: " + err.Error())
 		}
 
 		hs.finishedHash.Write(certVerify.marshal())
@@ -618,20 +652,6 @@
 		return err
 	}
 
-	if hs.hello.nextProtoNeg {
-		msg, err := c.readHandshake()
-		if err != nil {
-			return err
-		}
-		nextProto, ok := msg.(*nextProtoMsg)
-		if !ok {
-			c.sendAlert(alertUnexpectedMessage)
-			return unexpectedMessageError(nextProto, msg)
-		}
-		hs.finishedHash.Write(nextProto.marshal())
-		c.clientProtocol = nextProto.proto
-	}
-
 	msg, err := c.readHandshake()
 	if err != nil {
 		return err
@@ -740,7 +760,7 @@
 		chains, err := certs[0].Verify(opts)
 		if err != nil {
 			c.sendAlert(alertBadCertificate)
-			return errors.New("tls: failed to verify client's certificate: " + err.Error())
+			return errors.New("tls: failed to verify client certificate: " + err.Error())
 		}
 
 		c.verifiedChains = chains
@@ -761,7 +781,7 @@
 	case *ecdsa.PublicKey, *rsa.PublicKey, ed25519.PublicKey:
 	default:
 		c.sendAlert(alertUnsupportedCertificate)
-		return fmt.Errorf("tls: client's certificate contains an unsupported public key of type %T", certs[0].PublicKey)
+		return fmt.Errorf("tls: client certificate contains an unsupported public key of type %T", certs[0].PublicKey)
 	}
 
 	c.peerCertificates = certs
@@ -770,43 +790,6 @@
 	return nil
 }
 
-// setCipherSuite sets a cipherSuite with the given id as the serverHandshakeState
-// suite if that cipher suite is acceptable to use.
-// It returns a bool indicating if the suite was set.
-func (hs *serverHandshakeState) setCipherSuite(id uint16, supportedCipherSuites []uint16, version uint16) bool {
-	for _, supported := range supportedCipherSuites {
-		if id != supported {
-			continue
-		}
-		candidate := cipherSuiteByID(id)
-		if candidate == nil {
-			continue
-		}
-		// Don't select a ciphersuite which we can't
-		// support for this client.
-		if candidate.flags&suiteECDHE != 0 {
-			if !hs.ecdhOk {
-				continue
-			}
-			if candidate.flags&suiteECSign != 0 {
-				if !hs.ecSignOk {
-					continue
-				}
-			} else if !hs.rsaSignOk {
-				continue
-			}
-		} else if !hs.rsaDecryptOk {
-			continue
-		}
-		if version < VersionTLS12 && candidate.flags&suiteTLS12 != 0 {
-			continue
-		}
-		hs.suite = candidate
-		return true
-	}
-	return false
-}
-
 func clientHelloInfo(c *Conn, clientHello *clientHelloMsg) *ClientHelloInfo {
 	supportedVersions := clientHello.supportedVersions
 	if len(clientHello.supportedVersions) == 0 {
@@ -822,5 +805,6 @@
 		SupportedProtos:   clientHello.alpnProtocols,
 		SupportedVersions: supportedVersions,
 		Conn:              c.conn,
+		config:            c.config,
 	}
 }
diff --git a/libgo/go/crypto/tls/handshake_server_test.go b/libgo/go/crypto/tls/handshake_server_test.go
index a9c1c08..1e5da1e 100644
--- a/libgo/go/crypto/tls/handshake_server_test.go
+++ b/libgo/go/crypto/tls/handshake_server_test.go
@@ -8,6 +8,7 @@
 	"bytes"
 	"crypto"
 	"crypto/elliptic"
+	"crypto/x509"
 	"encoding/pem"
 	"errors"
 	"fmt"
@@ -61,36 +62,24 @@
 	testClientHelloFailure(t, testConfig, &serverHelloDoneMsg{}, "unexpected handshake message")
 }
 
-var badProtocolVersions = []uint16{0x0000, 0x0005, 0x0100, 0x0105, 0x0200, 0x0205}
+var badProtocolVersions = []uint16{0x0000, 0x0005, 0x0100, 0x0105, 0x0200, 0x0205, VersionSSL30}
 
 func TestRejectBadProtocolVersion(t *testing.T) {
+	config := testConfig.Clone()
+	config.MinVersion = VersionSSL30
 	for _, v := range badProtocolVersions {
-		testClientHelloFailure(t, testConfig, &clientHelloMsg{
+		testClientHelloFailure(t, config, &clientHelloMsg{
 			vers:   v,
 			random: make([]byte, 32),
 		}, "unsupported versions")
 	}
-	testClientHelloFailure(t, testConfig, &clientHelloMsg{
+	testClientHelloFailure(t, config, &clientHelloMsg{
 		vers:              VersionTLS12,
 		supportedVersions: badProtocolVersions,
 		random:            make([]byte, 32),
 	}, "unsupported versions")
 }
 
-func TestSSLv3OptIn(t *testing.T) {
-	config := testConfig.Clone()
-	config.MinVersion = 0
-	testClientHelloFailure(t, config, &clientHelloMsg{
-		vers:   VersionSSL30,
-		random: make([]byte, 32),
-	}, "unsupported versions")
-	testClientHelloFailure(t, config, &clientHelloMsg{
-		vers:              VersionTLS12,
-		supportedVersions: []uint16{VersionSSL30},
-		random:            make([]byte, 32),
-	}, "unsupported versions")
-}
-
 func TestNoSuiteOverlap(t *testing.T) {
 	clientHello := &clientHelloMsg{
 		vers:               VersionTLS10,
@@ -284,6 +273,79 @@
 	}
 }
 
+func TestTLSPointFormats(t *testing.T) {
+	// Test that a Server returns the ec_point_format extension when ECC is
+	// negotiated, and not returned on RSA handshake.
+	tests := []struct {
+		name                string
+		cipherSuites        []uint16
+		supportedCurves     []CurveID
+		supportedPoints     []uint8
+		wantSupportedPoints bool
+	}{
+		{"ECC", []uint16{TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA}, []CurveID{CurveP256}, []uint8{compressionNone}, true},
+		{"RSA", []uint16{TLS_RSA_WITH_AES_256_GCM_SHA384}, nil, nil, false},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			clientHello := &clientHelloMsg{
+				vers:               VersionTLS12,
+				random:             make([]byte, 32),
+				cipherSuites:       tt.cipherSuites,
+				compressionMethods: []uint8{compressionNone},
+				supportedCurves:    tt.supportedCurves,
+				supportedPoints:    tt.supportedPoints,
+			}
+
+			c, s := localPipe(t)
+			replyChan := make(chan interface{})
+			go func() {
+				cli := Client(c, testConfig)
+				cli.vers = clientHello.vers
+				cli.writeRecord(recordTypeHandshake, clientHello.marshal())
+				reply, err := cli.readHandshake()
+				c.Close()
+				if err != nil {
+					replyChan <- err
+				} else {
+					replyChan <- reply
+				}
+			}()
+			config := testConfig.Clone()
+			config.CipherSuites = clientHello.cipherSuites
+			Server(s, config).Handshake()
+			s.Close()
+			reply := <-replyChan
+			if err, ok := reply.(error); ok {
+				t.Fatal(err)
+			}
+			serverHello, ok := reply.(*serverHelloMsg)
+			if !ok {
+				t.Fatalf("didn't get ServerHello message in reply. Got %v\n", reply)
+			}
+			if tt.wantSupportedPoints {
+				if len(serverHello.supportedPoints) < 1 {
+					t.Fatal("missing ec_point_format extension from server")
+				}
+				found := false
+				for _, p := range serverHello.supportedPoints {
+					if p == pointFormatUncompressed {
+						found = true
+						break
+					}
+				}
+				if !found {
+					t.Fatal("missing uncompressed format in ec_point_format extension from server")
+				}
+			} else {
+				if len(serverHello.supportedPoints) != 0 {
+					t.Fatalf("unexcpected ec_point_format extension from server: %v", serverHello.supportedPoints)
+				}
+			}
+		})
+	}
+}
+
 func TestAlertForwarding(t *testing.T) {
 	c, s := localPipe(t)
 	go func() {
@@ -668,29 +730,19 @@
 }
 
 func runServerTestForVersion(t *testing.T, template *serverTest, version, option string) {
-	t.Run(version, func(t *testing.T) {
-		// Make a deep copy of the template before going parallel.
-		test := *template
-		if template.config != nil {
-			test.config = template.config.Clone()
-		}
+	// Make a deep copy of the template before going parallel.
+	test := *template
+	if template.config != nil {
+		test.config = template.config.Clone()
+	}
+	test.name = version + "-" + test.name
+	if len(test.command) == 0 {
+		test.command = defaultClientCommand
+	}
+	test.command = append([]string(nil), test.command...)
+	test.command = append(test.command, option)
 
-		if !*update && !template.wait {
-			t.Parallel()
-		}
-
-		test.name = version + "-" + test.name
-		if len(test.command) == 0 {
-			test.command = defaultClientCommand
-		}
-		test.command = append([]string(nil), test.command...)
-		test.command = append(test.command, option)
-		test.run(t, *update)
-	})
-}
-
-func runServerTestSSLv3(t *testing.T, template *serverTest) {
-	runServerTestForVersion(t, template, "SSLv3", "-ssl3")
+	runTestAndUpdateIfNeeded(t, version, test.run, test.wait)
 }
 
 func runServerTestTLS10(t *testing.T, template *serverTest) {
@@ -714,7 +766,6 @@
 		name:    "RSA-RC4",
 		command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "RC4-SHA"},
 	}
-	runServerTestSSLv3(t, test)
 	runServerTestTLS10(t, test)
 	runServerTestTLS11(t, test)
 	runServerTestTLS12(t, test)
@@ -725,7 +776,6 @@
 		name:    "RSA-3DES",
 		command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "DES-CBC3-SHA"},
 	}
-	runServerTestSSLv3(t, test)
 	runServerTestTLS10(t, test)
 	runServerTestTLS12(t, test)
 }
@@ -735,7 +785,6 @@
 		name:    "RSA-AES",
 		command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA"},
 	}
-	runServerTestSSLv3(t, test)
 	runServerTestTLS10(t, test)
 	runServerTestTLS12(t, test)
 }
@@ -1131,16 +1180,20 @@
 }
 
 func TestHandshakeServerRSAPSS(t *testing.T) {
+	// We send rsa_pss_rsae_sha512 first, as the test key won't fit, and we
+	// verify the server implementation will disregard the client preference in
+	// that case. See Issue 29793.
 	test := &serverTest{
-		name:                          "RSA-RSAPSS",
-		command:                       []string{"openssl", "s_client", "-no_ticket", "-sigalgs", "rsa_pss_rsae_sha256"},
-		expectHandshakeErrorIncluding: "peer doesn't support any common signature algorithms", // See Issue 32425.
+		name:    "RSA-RSAPSS",
+		command: []string{"openssl", "s_client", "-no_ticket", "-sigalgs", "rsa_pss_rsae_sha512:rsa_pss_rsae_sha256"},
 	}
 	runServerTestTLS12(t, test)
+	runServerTestTLS13(t, test)
 
 	test = &serverTest{
-		name:    "RSA-RSAPSS",
-		command: []string{"openssl", "s_client", "-no_ticket", "-sigalgs", "rsa_pss_rsae_sha256"},
+		name:                          "RSA-RSAPSS-TooSmall",
+		command:                       []string{"openssl", "s_client", "-no_ticket", "-sigalgs", "rsa_pss_rsae_sha512"},
+		expectHandshakeErrorIncluding: "peer doesn't support any of the certificate's signature algorithms",
 	}
 	runServerTestTLS13(t, test)
 }
@@ -1305,16 +1358,9 @@
 		command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA",
 			"-cert", certPath, "-key", keyPath, "-client_sigalgs", "rsa_pss_rsae_sha256"},
 		config:            config,
-		expectedPeerCerts: []string{}, // See Issue 32425.
-	}
-	runServerTestTLS12(t, test)
-	test = &serverTest{
-		name: "ClientAuthRequestedAndGiven",
-		command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA",
-			"-cert", certPath, "-key", keyPath, "-client_sigalgs", "rsa_pss_rsae_sha256"},
-		config:            config,
 		expectedPeerCerts: []string{clientCertificatePEM},
 	}
+	runServerTestTLS12(t, test)
 	runServerTestTLS13(t, test)
 
 	test = &serverTest{
@@ -1601,16 +1647,33 @@
 		config.MinVersion = VersionTLS13
 		server := Server(serverConn, config)
 		err := server.Handshake()
-		expectError(t, err, "key size too small for PSS signature")
+		expectError(t, err, "key size too small")
 		close(done)
 	}()
 	err = client.Handshake()
 	expectError(t, err, "handshake failure")
 	<-done
+}
 
-	// In TLS 1.2 RSA-PSS is not used, so this should succeed. See Issue 32425.
+func TestMultipleCertificates(t *testing.T) {
+	clientConfig := testConfig.Clone()
+	clientConfig.CipherSuites = []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256}
+	clientConfig.MaxVersion = VersionTLS12
+
 	serverConfig := testConfig.Clone()
-	serverConfig.Certificates = []Certificate{cert}
-	serverConfig.MaxVersion = VersionTLS12
-	testHandshake(t, testConfig, serverConfig)
+	serverConfig.Certificates = []Certificate{{
+		Certificate: [][]byte{testECDSACertificate},
+		PrivateKey:  testECDSAPrivateKey,
+	}, {
+		Certificate: [][]byte{testRSACertificate},
+		PrivateKey:  testRSAPrivateKey,
+	}}
+
+	_, clientState, err := testHandshake(t, clientConfig, serverConfig)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got := clientState.PeerCertificates[0].PublicKeyAlgorithm; got != x509.RSA {
+		t.Errorf("expected RSA certificate, got %v", got)
+	}
 }
diff --git a/libgo/go/crypto/tls/handshake_server_tls13.go b/libgo/go/crypto/tls/handshake_server_tls13.go
index 74f430c..5432145 100644
--- a/libgo/go/crypto/tls/handshake_server_tls13.go
+++ b/libgo/go/crypto/tls/handshake_server_tls13.go
@@ -108,7 +108,7 @@
 		if id == TLS_FALLBACK_SCSV {
 			// Use c.vers instead of max(supported_versions) because an attacker
 			// could defeat this by adding an arbitrary high version otherwise.
-			if c.vers < c.config.maxSupportedVersion(false) {
+			if c.vers < c.config.maxSupportedVersion() {
 				c.sendAlert(alertInappropriateFallback)
 				return errors.New("tls: client using inappropriate protocol fallback")
 			}
@@ -356,36 +356,26 @@
 		return nil
 	}
 
-	// This implements a very simplistic certificate selection strategy for now:
-	// getCertificate delegates to the application Config.GetCertificate, or
-	// selects based on the server_name only. If the selected certificate's
-	// public key does not match the client signature_algorithms, the handshake
-	// is aborted. No attention is given to signature_algorithms_cert, and it is
-	// not passed to the application Config.GetCertificate. This will need to
-	// improve according to RFC 8446, sections 4.4.2.2 and 4.2.3.
+	// signature_algorithms is required in TLS 1.3. See RFC 8446, Section 4.2.3.
+	if len(hs.clientHello.supportedSignatureAlgorithms) == 0 {
+		return c.sendAlert(alertMissingExtension)
+	}
+
 	certificate, err := c.config.getCertificate(clientHelloInfo(c, hs.clientHello))
 	if err != nil {
-		c.sendAlert(alertInternalError)
+		if err == errNoCertificates {
+			c.sendAlert(alertUnrecognizedName)
+		} else {
+			c.sendAlert(alertInternalError)
+		}
 		return err
 	}
-	supportedAlgs := signatureSchemesForCertificate(c.vers, certificate)
-	if supportedAlgs == nil {
-		c.sendAlert(alertInternalError)
-		return unsupportedCertificateError(certificate)
-	}
-	// Pick signature scheme in client preference order, as the server
-	// preference order is not configurable.
-	for _, preferredAlg := range hs.clientHello.supportedSignatureAlgorithms {
-		if isSupportedSignatureAlgorithm(preferredAlg, supportedAlgs) {
-			hs.sigAlg = preferredAlg
-			break
-		}
-	}
-	if hs.sigAlg == 0 {
-		// getCertificate returned a certificate incompatible with the
-		// ClientHello supported signature algorithms.
+	hs.sigAlg, err = selectSignatureScheme(c.vers, certificate, hs.clientHello.supportedSignatureAlgorithms)
+	if err != nil {
+		// getCertificate returned a certificate that is unsupported or
+		// incompatible with the client's signature algorithms.
 		c.sendAlert(alertHandshakeFailure)
-		return errors.New("tls: client doesn't support selected certificate")
+		return err
 	}
 	hs.cert = certificate
 
@@ -510,7 +500,6 @@
 		!bytes.Equal(ch.random, ch1.random) ||
 		!bytes.Equal(ch.sessionId, ch1.sessionId) ||
 		!bytes.Equal(ch.compressionMethods, ch1.compressionMethods) ||
-		ch.nextProtoNeg != ch1.nextProtoNeg ||
 		ch.serverName != ch1.serverName ||
 		ch.ocspStapling != ch1.ocspStapling ||
 		!bytes.Equal(ch.supportedPoints, ch1.supportedPoints) ||
@@ -621,9 +610,8 @@
 	certVerifyMsg.hasSignatureAlgorithm = true
 	certVerifyMsg.signatureAlgorithm = hs.sigAlg
 
-	sigType := signatureFromSignatureScheme(hs.sigAlg)
-	sigHash, err := hashFromSignatureScheme(hs.sigAlg)
-	if sigType == 0 || err != nil {
+	sigType, sigHash, err := typeAndHashFromSignatureScheme(hs.sigAlg)
+	if err != nil {
 		return c.sendAlert(alertInternalError)
 	}
 
@@ -802,23 +790,21 @@
 		// See RFC 8446, Section 4.4.3.
 		if !isSupportedSignatureAlgorithm(certVerify.signatureAlgorithm, supportedSignatureAlgorithms) {
 			c.sendAlert(alertIllegalParameter)
-			return errors.New("tls: invalid certificate signature algorithm")
+			return errors.New("tls: client certificate used with invalid signature algorithm")
 		}
-		sigType := signatureFromSignatureScheme(certVerify.signatureAlgorithm)
-		sigHash, err := hashFromSignatureScheme(certVerify.signatureAlgorithm)
-		if sigType == 0 || err != nil {
-			c.sendAlert(alertInternalError)
-			return err
+		sigType, sigHash, err := typeAndHashFromSignatureScheme(certVerify.signatureAlgorithm)
+		if err != nil {
+			return c.sendAlert(alertInternalError)
 		}
 		if sigType == signaturePKCS1v15 || sigHash == crypto.SHA1 {
 			c.sendAlert(alertIllegalParameter)
-			return errors.New("tls: invalid certificate signature algorithm")
+			return errors.New("tls: client certificate used with invalid signature algorithm")
 		}
 		signed := signedMessage(sigHash, clientSignatureContext, hs.transcript)
 		if err := verifyHandshakeSignature(sigType, c.peerCertificates[0].PublicKey,
 			sigHash, signed, certVerify.signature); err != nil {
 			c.sendAlert(alertDecryptError)
-			return errors.New("tls: invalid certificate signature")
+			return errors.New("tls: invalid signature by the client certificate: " + err.Error())
 		}
 
 		hs.transcript.Write(certVerify.marshal())
diff --git a/libgo/go/crypto/tls/handshake_test.go b/libgo/go/crypto/tls/handshake_test.go
index cfd9290..f55cd16 100644
--- a/libgo/go/crypto/tls/handshake_test.go
+++ b/libgo/go/crypto/tls/handshake_test.go
@@ -17,6 +17,7 @@
 	"net"
 	"os"
 	"os/exec"
+	"runtime"
 	"strconv"
 	"strings"
 	"sync"
@@ -36,17 +37,31 @@
 // implementation.
 //
 // Tests can be updated by running them with the -update flag. This will cause
-// the test files to be regenerated. Generally one should combine the -update
-// flag with -test.run to updated a specific test. Since the reference
-// implementation will always generate fresh random numbers, large parts of
-// the reference connection will always change.
+// the test files for failing tests to be regenerated. Since the reference
+// implementation will always generate fresh random numbers, large parts of the
+// reference connection will always change.
 
 var (
-	update  = flag.Bool("update", false, "update golden files on disk")
+	update  = flag.Bool("update", false, "update golden files on failure")
 	fast    = flag.Bool("fast", false, "impose a quick, possibly flaky timeout on recorded tests")
 	keyFile = flag.String("keylog", "", "destination file for KeyLogWriter")
 )
 
+func runTestAndUpdateIfNeeded(t *testing.T, name string, run func(t *testing.T, update bool), wait bool) {
+	success := t.Run(name, func(t *testing.T) {
+		if !*update && !wait {
+			t.Parallel()
+		}
+		run(t, false)
+	})
+
+	if !success && *update {
+		t.Run(name+"#update", func(t *testing.T) {
+			run(t, true)
+		})
+	}
+}
+
 // checkOpenSSLVersion ensures that the version of OpenSSL looks reasonable
 // before updating the test data.
 func checkOpenSSLVersion() error {
@@ -71,7 +86,7 @@
 	println("to update the test data.")
 	println("")
 	println("Configure it with:")
-	println("./Configure enable-weak-ssl-ciphers enable-ssl3 enable-ssl3-method")
+	println("./Configure enable-weak-ssl-ciphers")
 	println("and then add the apps/ directory at the front of your PATH.")
 	println("***********************************************")
 
@@ -243,19 +258,29 @@
 	}
 }
 
+var isConnRefused = func(err error) bool { return false }
+
 func localPipe(t testing.TB) (net.Conn, net.Conn) {
 	localListener.mu.Lock()
 	defer localListener.mu.Unlock()
 
 	addr := localListener.addr
 
+	var err error
 Dialing:
 	// We expect a rare mismatch, but probably not 5 in a row.
 	for i := 0; i < 5; i++ {
 		tooSlow := time.NewTimer(1 * time.Second)
 		defer tooSlow.Stop()
-		c1, err := net.Dial(addr.Network(), addr.String())
+		var c1 net.Conn
+		c1, err = net.Dial(addr.Network(), addr.String())
 		if err != nil {
+			if runtime.GOOS == "dragonfly" && (isConnRefused(err) || os.IsTimeout(err)) {
+				// golang.org/issue/29583: Dragonfly sometimes returns a spurious
+				// ECONNREFUSED or ETIMEDOUT.
+				<-tooSlow.C
+				continue
+			}
 			t.Fatalf("localPipe: %v", err)
 		}
 		if localFlakes == 2 && i == 0 {
@@ -279,7 +304,7 @@
 		}
 	}
 
-	t.Fatalf("localPipe: failed to connect")
+	t.Fatalf("localPipe: failed to connect: %v", err)
 	panic("unreachable")
 }
 
@@ -345,8 +370,6 @@
 		Rand:               zeroSource{},
 		Certificates:       make([]Certificate, 2),
 		InsecureSkipVerify: true,
-		MinVersion:         VersionSSL30,
-		MaxVersion:         VersionTLS13,
 		CipherSuites:       allCipherSuites(),
 	}
 	testConfig.Certificates[0].Certificate = [][]byte{testRSACertificate}
diff --git a/libgo/go/crypto/tls/handshake_unix_test.go b/libgo/go/crypto/tls/handshake_unix_test.go
new file mode 100644
index 0000000..7271854
--- /dev/null
+++ b/libgo/go/crypto/tls/handshake_unix_test.go
@@ -0,0 +1,18 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package tls
+
+import (
+	"errors"
+	"syscall"
+)
+
+func init() {
+	isConnRefused = func(err error) bool {
+		return errors.Is(err, syscall.ECONNREFUSED)
+	}
+}
diff --git a/libgo/go/crypto/tls/key_agreement.go b/libgo/go/crypto/tls/key_agreement.go
index 2922017..03aa861 100644
--- a/libgo/go/crypto/tls/key_agreement.go
+++ b/libgo/go/crypto/tls/key_agreement.go
@@ -11,6 +11,7 @@
 	"crypto/sha1"
 	"crypto/x509"
 	"errors"
+	"fmt"
 	"io"
 )
 
@@ -29,15 +30,12 @@
 	if len(ckx.ciphertext) < 2 {
 		return nil, errClientKeyExchange
 	}
-
-	ciphertext := ckx.ciphertext
-	if version != VersionSSL30 {
-		ciphertextLen := int(ckx.ciphertext[0])<<8 | int(ckx.ciphertext[1])
-		if ciphertextLen != len(ckx.ciphertext)-2 {
-			return nil, errClientKeyExchange
-		}
-		ciphertext = ckx.ciphertext[2:]
+	ciphertextLen := int(ckx.ciphertext[0])<<8 | int(ckx.ciphertext[1])
+	if ciphertextLen != len(ckx.ciphertext)-2 {
+		return nil, errClientKeyExchange
 	}
+	ciphertext := ckx.ciphertext[2:]
+
 	priv, ok := cert.PrivateKey.(crypto.Decrypter)
 	if !ok {
 		return nil, errors.New("tls: certificate private key does not implement crypto.Decrypter")
@@ -145,16 +143,11 @@
 }
 
 func (ka *ecdheKeyAgreement) generateServerKeyExchange(config *Config, cert *Certificate, clientHello *clientHelloMsg, hello *serverHelloMsg) (*serverKeyExchangeMsg, error) {
-	preferredCurves := config.curvePreferences()
-
 	var curveID CurveID
-NextCandidate:
-	for _, candidate := range preferredCurves {
-		for _, c := range clientHello.supportedCurves {
-			if candidate == c {
-				curveID = c
-				break NextCandidate
-			}
+	for _, c := range clientHello.supportedCurves {
+		if config.supportsCurve(c) {
+			curveID = c
+			break
 		}
 	}
 
@@ -173,31 +166,45 @@
 
 	// See RFC 4492, Section 5.4.
 	ecdhePublic := params.PublicKey()
-	serverECDHParams := make([]byte, 1+2+1+len(ecdhePublic))
-	serverECDHParams[0] = 3 // named curve
-	serverECDHParams[1] = byte(curveID >> 8)
-	serverECDHParams[2] = byte(curveID)
-	serverECDHParams[3] = byte(len(ecdhePublic))
-	copy(serverECDHParams[4:], ecdhePublic)
+	serverECDHEParams := make([]byte, 1+2+1+len(ecdhePublic))
+	serverECDHEParams[0] = 3 // named curve
+	serverECDHEParams[1] = byte(curveID >> 8)
+	serverECDHEParams[2] = byte(curveID)
+	serverECDHEParams[3] = byte(len(ecdhePublic))
+	copy(serverECDHEParams[4:], ecdhePublic)
 
 	priv, ok := cert.PrivateKey.(crypto.Signer)
 	if !ok {
-		return nil, errors.New("tls: certificate private key does not implement crypto.Signer")
+		return nil, fmt.Errorf("tls: certificate private key of type %T does not implement crypto.Signer", cert.PrivateKey)
 	}
 
-	signatureAlgorithm, sigType, hashFunc, err := pickSignatureAlgorithm(priv.Public(), clientHello.supportedSignatureAlgorithms, supportedSignatureAlgorithmsTLS12, ka.version)
-	if err != nil {
-		return nil, err
+	var signatureAlgorithm SignatureScheme
+	var sigType uint8
+	var sigHash crypto.Hash
+	if ka.version >= VersionTLS12 {
+		signatureAlgorithm, err = selectSignatureScheme(ka.version, cert, clientHello.supportedSignatureAlgorithms)
+		if err != nil {
+			return nil, err
+		}
+		sigType, sigHash, err = typeAndHashFromSignatureScheme(signatureAlgorithm)
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		sigType, sigHash, err = legacyTypeAndHashFromPublicKey(priv.Public())
+		if err != nil {
+			return nil, err
+		}
 	}
 	if (sigType == signaturePKCS1v15 || sigType == signatureRSAPSS) != ka.isRSA {
 		return nil, errors.New("tls: certificate cannot be used with the selected cipher suite")
 	}
 
-	signed := hashForServerKeyExchange(sigType, hashFunc, ka.version, clientHello.random, hello.random, serverECDHParams)
+	signed := hashForServerKeyExchange(sigType, sigHash, ka.version, clientHello.random, hello.random, serverECDHEParams)
 
-	signOpts := crypto.SignerOpts(hashFunc)
+	signOpts := crypto.SignerOpts(sigHash)
 	if sigType == signatureRSAPSS {
-		signOpts = &rsa.PSSOptions{SaltLength: rsa.PSSSaltLengthEqualsHash, Hash: hashFunc}
+		signOpts = &rsa.PSSOptions{SaltLength: rsa.PSSSaltLengthEqualsHash, Hash: sigHash}
 	}
 	sig, err := priv.Sign(config.rand(), signed, signOpts)
 	if err != nil {
@@ -209,9 +216,9 @@
 	if ka.version >= VersionTLS12 {
 		sigAndHashLen = 2
 	}
-	skx.key = make([]byte, len(serverECDHParams)+sigAndHashLen+2+len(sig))
-	copy(skx.key, serverECDHParams)
-	k := skx.key[len(serverECDHParams):]
+	skx.key = make([]byte, len(serverECDHEParams)+sigAndHashLen+2+len(sig))
+	copy(skx.key, serverECDHEParams)
+	k := skx.key[len(serverECDHEParams):]
 	if ka.version >= VersionTLS12 {
 		k[0] = byte(signatureAlgorithm >> 8)
 		k[1] = byte(signatureAlgorithm)
@@ -250,8 +257,8 @@
 	if publicLen+4 > len(skx.key) {
 		return errServerKeyExchange
 	}
-	serverECDHParams := skx.key[:4+publicLen]
-	publicKey := serverECDHParams[4:]
+	serverECDHEParams := skx.key[:4+publicLen]
+	publicKey := serverECDHEParams[4:]
 
 	sig := skx.key[4+publicLen:]
 	if len(sig) < 2 {
@@ -279,18 +286,27 @@
 	ka.ckx.ciphertext[0] = byte(len(ourPublicKey))
 	copy(ka.ckx.ciphertext[1:], ourPublicKey)
 
-	var signatureAlgorithm SignatureScheme
+	var sigType uint8
+	var sigHash crypto.Hash
 	if ka.version >= VersionTLS12 {
-		// handle SignatureAndHashAlgorithm
-		signatureAlgorithm = SignatureScheme(sig[0])<<8 | SignatureScheme(sig[1])
+		signatureAlgorithm := SignatureScheme(sig[0])<<8 | SignatureScheme(sig[1])
 		sig = sig[2:]
 		if len(sig) < 2 {
 			return errServerKeyExchange
 		}
-	}
-	_, sigType, hashFunc, err := pickSignatureAlgorithm(cert.PublicKey, []SignatureScheme{signatureAlgorithm}, clientHello.supportedSignatureAlgorithms, ka.version)
-	if err != nil {
-		return err
+
+		if !isSupportedSignatureAlgorithm(signatureAlgorithm, clientHello.supportedSignatureAlgorithms) {
+			return errors.New("tls: certificate used with invalid signature algorithm")
+		}
+		sigType, sigHash, err = typeAndHashFromSignatureScheme(signatureAlgorithm)
+		if err != nil {
+			return err
+		}
+	} else {
+		sigType, sigHash, err = legacyTypeAndHashFromPublicKey(cert.PublicKey)
+		if err != nil {
+			return err
+		}
 	}
 	if (sigType == signaturePKCS1v15 || sigType == signatureRSAPSS) != ka.isRSA {
 		return errServerKeyExchange
@@ -302,8 +318,11 @@
 	}
 	sig = sig[2:]
 
-	signed := hashForServerKeyExchange(sigType, hashFunc, ka.version, clientHello.random, serverHello.random, serverECDHParams)
-	return verifyHandshakeSignature(sigType, cert.PublicKey, hashFunc, signed, sig)
+	signed := hashForServerKeyExchange(sigType, sigHash, ka.version, clientHello.random, serverHello.random, serverECDHEParams)
+	if err := verifyHandshakeSignature(sigType, cert.PublicKey, sigHash, signed, sig); err != nil {
+		return errors.New("tls: invalid signature by the server certificate: " + err.Error())
+	}
+	return nil
 }
 
 func (ka *ecdheKeyAgreement) generateClientKeyExchange(config *Config, clientHello *clientHelloMsg, cert *x509.Certificate) ([]byte, *clientKeyExchangeMsg, error) {
diff --git a/libgo/go/crypto/tls/key_schedule.go b/libgo/go/crypto/tls/key_schedule.go
index 83e5480..2aab323 100644
--- a/libgo/go/crypto/tls/key_schedule.go
+++ b/libgo/go/crypto/tls/key_schedule.go
@@ -7,14 +7,14 @@
 import (
 	"crypto/elliptic"
 	"crypto/hmac"
-	"crypto/subtle"
 	"errors"
-	"golang.org/x/crypto/cryptobyte"
-	"golang.org/x/crypto/curve25519"
-	"golang.org/x/crypto/hkdf"
 	"hash"
 	"io"
 	"math/big"
+
+	"golang.org/x/crypto/cryptobyte"
+	"golang.org/x/crypto/curve25519"
+	"golang.org/x/crypto/hkdf"
 )
 
 // This file contains the functions necessary to compute the TLS 1.3 key
@@ -111,12 +111,15 @@
 
 func generateECDHEParameters(rand io.Reader, curveID CurveID) (ecdheParameters, error) {
 	if curveID == X25519 {
-		p := &x25519Parameters{}
-		if _, err := io.ReadFull(rand, p.privateKey[:]); err != nil {
+		privateKey := make([]byte, curve25519.ScalarSize)
+		if _, err := io.ReadFull(rand, privateKey); err != nil {
 			return nil, err
 		}
-		curve25519.ScalarBaseMult(&p.publicKey, &p.privateKey)
-		return p, nil
+		publicKey, err := curve25519.X25519(privateKey, curve25519.Basepoint)
+		if err != nil {
+			return nil, err
+		}
+		return &x25519Parameters{privateKey: privateKey, publicKey: publicKey}, nil
 	}
 
 	curve, ok := curveForCurveID(curveID)
@@ -178,8 +181,8 @@
 }
 
 type x25519Parameters struct {
-	privateKey [32]byte
-	publicKey  [32]byte
+	privateKey []byte
+	publicKey  []byte
 }
 
 func (p *x25519Parameters) CurveID() CurveID {
@@ -191,19 +194,9 @@
 }
 
 func (p *x25519Parameters) SharedKey(peerPublicKey []byte) []byte {
-	if len(peerPublicKey) != 32 {
+	sharedKey, err := curve25519.X25519(p.privateKey, peerPublicKey)
+	if err != nil {
 		return nil
 	}
-
-	var theirPublicKey, sharedKey [32]byte
-	copy(theirPublicKey[:], peerPublicKey)
-	curve25519.ScalarMult(&sharedKey, &p.privateKey, &theirPublicKey)
-
-	// Check for low-order inputs. See RFC 8422, Section 5.11.
-	var allZeroes [32]byte
-	if subtle.ConstantTimeCompare(allZeroes[:], sharedKey[:]) == 1 {
-		return nil
-	}
-
-	return sharedKey[:]
+	return sharedKey
 }
diff --git a/libgo/go/crypto/tls/prf.go b/libgo/go/crypto/tls/prf.go
index 5e97726..13bfa00 100644
--- a/libgo/go/crypto/tls/prf.go
+++ b/libgo/go/crypto/tls/prf.go
@@ -74,39 +74,6 @@
 	}
 }
 
-// prf30 implements the SSL 3.0 pseudo-random function, as defined in
-// www.mozilla.org/projects/security/pki/nss/ssl/draft302.txt section 6.
-func prf30(result, secret, label, seed []byte) {
-	hashSHA1 := sha1.New()
-	hashMD5 := md5.New()
-
-	done := 0
-	i := 0
-	// RFC 5246 section 6.3 says that the largest PRF output needed is 128
-	// bytes. Since no more ciphersuites will be added to SSLv3, this will
-	// remain true. Each iteration gives us 16 bytes so 10 iterations will
-	// be sufficient.
-	var b [11]byte
-	for done < len(result) {
-		for j := 0; j <= i; j++ {
-			b[j] = 'A' + byte(i)
-		}
-
-		hashSHA1.Reset()
-		hashSHA1.Write(b[:i+1])
-		hashSHA1.Write(secret)
-		hashSHA1.Write(seed)
-		digest := hashSHA1.Sum(nil)
-
-		hashMD5.Reset()
-		hashMD5.Write(secret)
-		hashMD5.Write(digest)
-
-		done += copy(result[done:], hashMD5.Sum(nil))
-		i++
-	}
-}
-
 const (
 	masterSecretLength   = 48 // Length of a master secret in TLS 1.1.
 	finishedVerifyLength = 12 // Length of verify_data in a Finished message.
@@ -119,8 +86,6 @@
 
 func prfAndHashForVersion(version uint16, suite *cipherSuite) (func(result, secret, label, seed []byte), crypto.Hash) {
 	switch version {
-	case VersionSSL30:
-		return prf30, crypto.Hash(0)
 	case VersionTLS10, VersionTLS11:
 		return prf10, crypto.Hash(0)
 	case VersionTLS12:
@@ -175,28 +140,9 @@
 	return
 }
 
-// hashFromSignatureScheme returns the corresponding crypto.Hash for a given
-// hash from a TLS SignatureScheme.
-func hashFromSignatureScheme(signatureAlgorithm SignatureScheme) (crypto.Hash, error) {
-	switch signatureAlgorithm {
-	case PKCS1WithSHA1, ECDSAWithSHA1:
-		return crypto.SHA1, nil
-	case PKCS1WithSHA256, PSSWithSHA256, ECDSAWithP256AndSHA256:
-		return crypto.SHA256, nil
-	case PKCS1WithSHA384, PSSWithSHA384, ECDSAWithP384AndSHA384:
-		return crypto.SHA384, nil
-	case PKCS1WithSHA512, PSSWithSHA512, ECDSAWithP521AndSHA512:
-		return crypto.SHA512, nil
-	case Ed25519:
-		return directSigning, nil
-	default:
-		return 0, fmt.Errorf("tls: unsupported signature algorithm: %#04x", signatureAlgorithm)
-	}
-}
-
 func newFinishedHash(version uint16, cipherSuite *cipherSuite) finishedHash {
 	var buffer []byte
-	if version == VersionSSL30 || version >= VersionTLS12 {
+	if version >= VersionTLS12 {
 		buffer = []byte{}
 	}
 
@@ -251,48 +197,9 @@
 	return h.client.Sum(out)
 }
 
-// finishedSum30 calculates the contents of the verify_data member of a SSLv3
-// Finished message given the MD5 and SHA1 hashes of a set of handshake
-// messages.
-func finishedSum30(md5, sha1 hash.Hash, masterSecret []byte, magic []byte) []byte {
-	md5.Write(magic)
-	md5.Write(masterSecret)
-	md5.Write(ssl30Pad1[:])
-	md5Digest := md5.Sum(nil)
-
-	md5.Reset()
-	md5.Write(masterSecret)
-	md5.Write(ssl30Pad2[:])
-	md5.Write(md5Digest)
-	md5Digest = md5.Sum(nil)
-
-	sha1.Write(magic)
-	sha1.Write(masterSecret)
-	sha1.Write(ssl30Pad1[:40])
-	sha1Digest := sha1.Sum(nil)
-
-	sha1.Reset()
-	sha1.Write(masterSecret)
-	sha1.Write(ssl30Pad2[:40])
-	sha1.Write(sha1Digest)
-	sha1Digest = sha1.Sum(nil)
-
-	ret := make([]byte, len(md5Digest)+len(sha1Digest))
-	copy(ret, md5Digest)
-	copy(ret[len(md5Digest):], sha1Digest)
-	return ret
-}
-
-var ssl3ClientFinishedMagic = [4]byte{0x43, 0x4c, 0x4e, 0x54}
-var ssl3ServerFinishedMagic = [4]byte{0x53, 0x52, 0x56, 0x52}
-
 // clientSum returns the contents of the verify_data member of a client's
 // Finished message.
 func (h finishedHash) clientSum(masterSecret []byte) []byte {
-	if h.version == VersionSSL30 {
-		return finishedSum30(h.clientMD5, h.client, masterSecret, ssl3ClientFinishedMagic[:])
-	}
-
 	out := make([]byte, finishedVerifyLength)
 	h.prf(out, masterSecret, clientFinishedLabel, h.Sum())
 	return out
@@ -301,10 +208,6 @@
 // serverSum returns the contents of the verify_data member of a server's
 // Finished message.
 func (h finishedHash) serverSum(masterSecret []byte) []byte {
-	if h.version == VersionSSL30 {
-		return finishedSum30(h.serverMD5, h.server, masterSecret, ssl3ServerFinishedMagic[:])
-	}
-
 	out := make([]byte, finishedVerifyLength)
 	h.prf(out, masterSecret, serverFinishedLabel, h.Sum())
 	return out
@@ -312,38 +215,26 @@
 
 // hashForClientCertificate returns the handshake messages so far, pre-hashed if
 // necessary, suitable for signing by a TLS client certificate.
-func (h finishedHash) hashForClientCertificate(sigType uint8, hashAlg crypto.Hash, masterSecret []byte) ([]byte, error) {
-	if (h.version == VersionSSL30 || h.version >= VersionTLS12 || sigType == signatureEd25519) && h.buffer == nil {
+func (h finishedHash) hashForClientCertificate(sigType uint8, hashAlg crypto.Hash, masterSecret []byte) []byte {
+	if (h.version >= VersionTLS12 || sigType == signatureEd25519) && h.buffer == nil {
 		panic("tls: handshake hash for a client certificate requested after discarding the handshake buffer")
 	}
 
-	if h.version == VersionSSL30 {
-		if sigType != signaturePKCS1v15 {
-			return nil, errors.New("tls: unsupported signature type for client certificate")
-		}
-
-		md5Hash := md5.New()
-		md5Hash.Write(h.buffer)
-		sha1Hash := sha1.New()
-		sha1Hash.Write(h.buffer)
-		return finishedSum30(md5Hash, sha1Hash, masterSecret, nil), nil
-	}
-
 	if sigType == signatureEd25519 {
-		return h.buffer, nil
+		return h.buffer
 	}
 
 	if h.version >= VersionTLS12 {
 		hash := hashAlg.New()
 		hash.Write(h.buffer)
-		return hash.Sum(nil), nil
+		return hash.Sum(nil)
 	}
 
 	if sigType == signatureECDSA {
-		return h.server.Sum(nil), nil
+		return h.server.Sum(nil)
 	}
 
-	return h.Sum(), nil
+	return h.Sum()
 }
 
 // discardHandshakeBuffer is called when there is no more need to
@@ -353,7 +244,7 @@
 }
 
 // noExportedKeyingMaterial is used as a value of
-// ConnectionState.ekm when renegotation is enabled and thus
+// ConnectionState.ekm when renegotiation is enabled and thus
 // we wish to fail all key-material export requests.
 func noExportedKeyingMaterial(label string, context []byte, length int) ([]byte, error) {
 	return nil, errors.New("crypto/tls: ExportKeyingMaterial is unavailable when renegotiation is enabled")
diff --git a/libgo/go/crypto/tls/prf_test.go b/libgo/go/crypto/tls/prf_test.go
index ec54aac..8233985 100644
--- a/libgo/go/crypto/tls/prf_test.go
+++ b/libgo/go/crypto/tls/prf_test.go
@@ -137,20 +137,4 @@
 		"678b0d43f607de35241dc7e9d1a7388a52c35033a1a0336d4d740060a6638fe2",
 		"f3b4ac743f015ef21d79978297a53da3e579ee047133f38c234d829c0f907dab",
 	},
-	{
-		VersionSSL30,
-		cipherSuiteByID(TLS_RSA_WITH_RC4_128_SHA),
-		"832d515f1d61eebb2be56ba0ef79879efb9b527504abb386fb4310ed5d0e3b1f220d3bb6b455033a2773e6d8bdf951d278a187482b400d45deb88a5d5a6bb7d6a7a1decc04eb9ef0642876cd4a82d374d3b6ff35f0351dc5d411104de431375355addc39bfb1f6329fb163b0bc298d658338930d07d313cd980a7e3d9196cac1",
-		"4ae663b2ee389c0de147c509d8f18f5052afc4aaf9699efe8cb05ece883d3a5e",
-		"4ae664d503fd4cff50cfc1fb8fc606580f87b0fcdac9554ba0e01d785bdf278e",
-		"a614863e56299dcffeea2938f22c2ba023768dbe4b3f6877bc9c346c6ae529b51d9cb87ff9695ea4d01f2205584405b2",
-		"2c450d5b6f6e2013ac6bea6a0b32200d4e1ffb94",
-		"7a7a7438769536f2fb1ae49a61f0703b79b2dc53",
-		"f8f6b26c10f12855c9aafb1e0e839ccf",
-		"2b9d4b4a60cb7f396780ebff50650419",
-		20,
-		16,
-		"d230d8fc4f695be60368635e5268c414ca3ae0995dd93aba9f877272049f35bf",
-		"6b5e9646e04df8e99482a9b22dbfbe42ddd4725e4b041d02d11e4ef44ad13120",
-	},
 }
diff --git a/libgo/go/crypto/tls/testdata/Client-TLSv12-ALPN b/libgo/go/crypto/tls/testdata/Client-TLSv12-ALPN
index 2708b26..358b211 100644
--- a/libgo/go/crypto/tls/testdata/Client-TLSv12-ALPN
+++ b/libgo/go/crypto/tls/testdata/Client-TLSv12-ALPN
@@ -1,5 +1,5 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 01 12 01 00 01  0e 03 03 00 00 00 00 00  |................|
+00000000  16 03 01 01 0e 01 00 01  0a 03 03 00 00 00 00 00  |................|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 00 00 00 00 00  00 00 00 20 00 00 00 00  |........... ....|
 00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
@@ -7,22 +7,22 @@
 00000050  cc a9 c0 2f c0 2b c0 30  c0 2c c0 27 c0 13 c0 23  |.../.+.0.,.'...#|
 00000060  c0 09 c0 14 c0 0a 00 9c  00 9d 00 3c 00 2f 00 35  |...........<./.5|
 00000070  c0 12 00 0a 00 05 c0 11  c0 07 13 01 13 03 13 02  |................|
-00000080  01 00 00 93 33 74 00 00  00 05 00 05 01 00 00 00  |....3t..........|
-00000090  00 00 0a 00 0a 00 08 00  1d 00 17 00 18 00 19 00  |................|
-000000a0  0b 00 02 01 00 00 0d 00  1a 00 18 08 04 04 03 08  |................|
-000000b0  07 08 05 08 06 04 01 05  01 06 01 05 03 06 03 02  |................|
-000000c0  01 02 03 ff 01 00 01 00  00 10 00 10 00 0e 06 70  |...............p|
-000000d0  72 6f 74 6f 32 06 70 72  6f 74 6f 31 00 12 00 00  |roto2.proto1....|
-000000e0  00 2b 00 09 08 03 04 03  03 03 02 03 01 00 33 00  |.+............3.|
-000000f0  26 00 24 00 1d 00 20 2f  e5 7d a3 47 cd 62 43 15  |&.$... /.}.G.bC.|
-00000100  28 da ac 5f bb 29 07 30  ff f6 84 af c4 cf c2 ed  |(.._.).0........|
-00000110  90 99 5f 58 cb 3b 74                              |.._X.;t|
+00000080  01 00 00 8f 00 05 00 05  01 00 00 00 00 00 0a 00  |................|
+00000090  0a 00 08 00 1d 00 17 00  18 00 19 00 0b 00 02 01  |................|
+000000a0  00 00 0d 00 1a 00 18 08  04 04 03 08 07 08 05 08  |................|
+000000b0  06 04 01 05 01 06 01 05  03 06 03 02 01 02 03 ff  |................|
+000000c0  01 00 01 00 00 10 00 10  00 0e 06 70 72 6f 74 6f  |...........proto|
+000000d0  32 06 70 72 6f 74 6f 31  00 12 00 00 00 2b 00 09  |2.proto1.....+..|
+000000e0  08 03 04 03 03 03 02 03  01 00 33 00 26 00 24 00  |..........3.&.$.|
+000000f0  1d 00 20 2f e5 7d a3 47  cd 62 43 15 28 da ac 5f  |.. /.}.G.bC.(.._|
+00000100  bb 29 07 30 ff f6 84 af  c4 cf c2 ed 90 99 5f 58  |.).0.........._X|
+00000110  cb 3b 74                                          |.;t|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 66 02 00 00  62 03 03 0e b3 00 4c e5  |....f...b.....L.|
-00000010  e4 08 c5 3d c2 9c 19 a1  de ae 43 24 9a 4d 81 99  |...=......C$.M..|
-00000020  df 60 cf a5 be ae c1 e8  e8 b9 a8 20 14 e6 e1 91  |.`......... ....|
-00000030  7a ab 9f 7b 3c dc c5 71  4b 28 80 5e fa 56 c9 b7  |z..{<..qK(.^.V..|
-00000040  d4 2f 0e 80 49 df 81 93  df 5d 34 49 cc a8 00 00  |./..I....]4I....|
+00000000  16 03 03 00 66 02 00 00  62 03 03 95 14 55 52 0b  |....f...b....UR.|
+00000010  e7 c1 15 6b dc 19 3b 17  9e bb 6a b7 61 82 dc 59  |...k..;...j.a..Y|
+00000020  d3 a4 7c e1 c3 83 cc e2  e5 56 e0 20 3c 82 0d 54  |..|......V. <..T|
+00000030  2b 78 fe 50 cb 4e c1 69  d7 6f b3 9f ac 2e 27 c8  |+x.P.N.i.o....'.|
+00000040  c6 7a 70 27 1e 14 67 43  4c f1 7d d7 cc a8 00 00  |.zp'..gCL.}.....|
 00000050  1a ff 01 00 01 00 00 0b  00 04 03 00 01 02 00 10  |................|
 00000060  00 09 00 07 06 70 72 6f  74 6f 31 16 03 03 02 59  |.....proto1....Y|
 00000070  0b 00 02 55 00 02 52 00  02 4f 30 82 02 4b 30 82  |...U..R..O0..K0.|
@@ -63,31 +63,31 @@
 000002a0  1c f1 0f a1 d8 40 83 61  c9 4c 72 2b 9d ae db 46  |.....@.a.Lr+...F|
 000002b0  06 06 4d f4 c1 b3 3e c0  d1 bd 42 d4 db fe 3d 13  |..M...>...B...=.|
 000002c0  60 84 5c 21 d3 3b e9 fa  e7 16 03 03 00 ac 0c 00  |`.\!.;..........|
-000002d0  00 a8 03 00 1d 20 18 37  3a d3 0a 4f 9b 95 c7 f0  |..... .7:..O....|
-000002e0  a2 00 43 5f df 2e a8 16  a9 9f 2a 0e 51 cf c9 b9  |..C_......*.Q...|
-000002f0  14 62 a7 ab 4b 6a 08 04  00 80 1a b2 78 e7 cd b6  |.b..Kj......x...|
-00000300  18 65 31 19 f9 91 9f a6  cb 77 97 69 86 27 ef 06  |.e1......w.i.'..|
-00000310  b5 bc f4 8f 75 96 01 72  64 2c d4 e4 67 0a d5 58  |....u..rd,..g..X|
-00000320  e0 e1 05 82 a6 58 f6 e0  06 c2 15 03 69 ba 5a a0  |.....X......i.Z.|
-00000330  2b af 6f b1 cd 16 84 1d  89 9c d0 c7 d2 c7 83 e8  |+.o.............|
-00000340  43 b7 4f e8 ca 97 c0 e2  57 d0 10 48 0c 26 cf 58  |C.O.....W..H.&.X|
-00000350  50 69 d8 86 b6 f5 aa 02  b8 f6 41 c4 15 52 99 52  |Pi........A..R.R|
-00000360  05 05 5b 42 80 6d 8a bf  7a e6 f3 60 c5 67 23 dc  |..[B.m..z..`.g#.|
-00000370  39 4b e6 74 0e 0e 47 a7  57 02 16 03 03 00 04 0e  |9K.t..G.W.......|
+000002d0  00 a8 03 00 1d 20 c3 e3  43 9c 5d 0f 09 61 ae 18  |..... ..C.]..a..|
+000002e0  66 05 b1 7d c1 9f e5 26  9c a7 97 d6 1f 9a 7c ff  |f..}...&......|.|
+000002f0  8c 34 a1 32 a2 35 08 04  00 80 6c 50 a1 80 d9 20  |.4.2.5....lP... |
+00000300  56 08 da d9 5b 77 4d ad  43 66 71 15 ec fe db 02  |V...[wM.Cfq.....|
+00000310  fb 40 d8 8d 67 22 e2 1b  ec 8d b9 4e ba 65 01 8b  |.@..g".....N.e..|
+00000320  70 e0 83 bc 06 1b 14 8f  07 cf a6 08 58 c3 77 94  |p...........X.w.|
+00000330  0f 94 53 62 54 6c 1f 92  22 9d ae f8 5a ad d5 f3  |..SbTl.."...Z...|
+00000340  8a f7 e6 93 8c 0e 48 1b  23 89 d8 bd e9 5c 50 cd  |......H.#....\P.|
+00000350  07 3d 7e 8e b0 d6 65 44  58 62 03 a1 d9 94 72 f0  |.=~...eDXb....r.|
+00000360  25 a9 e0 c1 be ac 32 05  59 f7 7f 6e 13 23 70 5a  |%.....2.Y..n.#pZ|
+00000370  65 ba a2 d7 da 3c a2 9e  6b 13 16 03 03 00 04 0e  |e....<..k.......|
 00000380  00 00 00                                          |...|
 >>> Flow 3 (client to server)
 00000000  16 03 03 00 25 10 00 00  21 20 2f e5 7d a3 47 cd  |....%...! /.}.G.|
 00000010  62 43 15 28 da ac 5f bb  29 07 30 ff f6 84 af c4  |bC.(.._.).0.....|
 00000020  cf c2 ed 90 99 5f 58 cb  3b 74 14 03 03 00 01 01  |....._X.;t......|
-00000030  16 03 03 00 20 0d 3c cf  6f 13 e3 73 d2 c5 05 06  |.... .<.o..s....|
-00000040  85 8d 41 e0 46 3b 25 e7  0a ae b9 00 1e c3 3f 61  |..A.F;%.......?a|
-00000050  82 2d e1 19 a4                                    |.-...|
+00000030  16 03 03 00 20 5e 91 45  7d ab 7c b7 6f 57 a6 d0  |.... ^.E}.|.oW..|
+00000040  17 83 cb 40 1b 76 6b 5e  80 39 03 2f 6d 2f 10 8e  |...@.vk^.9./m/..|
+00000050  74 33 12 54 8d                                    |t3.T.|
 >>> Flow 4 (server to client)
-00000000  14 03 03 00 01 01 16 03  03 00 20 43 1a 5d c1 dc  |.......... C.]..|
-00000010  42 10 81 bc af 2d 40 82  fa 27 41 81 cc e5 97 99  |B....-@..'A.....|
-00000020  80 27 3a b5 db f5 8e 2a  6d 72 86                 |.':....*mr.|
+00000000  14 03 03 00 01 01 16 03  03 00 20 f1 3c 7a 28 eb  |.......... .<z(.|
+00000010  0a b1 bf 42 28 de 07 83  76 c6 2c 94 b7 d5 ef f3  |...B(...v.,.....|
+00000020  0b 9c 0c 2e d3 ab 8a a9  03 d2 c0                 |...........|
 >>> Flow 5 (client to server)
-00000000  17 03 03 00 16 f1 0a 98  3b 2a 06 98 ad 46 f5 f7  |........;*...F..|
-00000010  42 cf 89 c0 d4 a7 08 df  bb dc 4d 15 03 03 00 12  |B.........M.....|
-00000020  9c d4 d2 a1 fb 38 98 31  7d ce 39 50 0b 58 d8 a8  |.....8.1}.9P.X..|
-00000030  3e 19                                             |>.|
+00000000  17 03 03 00 16 dc f6 18  54 22 e0 9c 08 bf db a8  |........T"......|
+00000010  62 2a 64 9e 06 43 0f 22  18 0e 34 15 03 03 00 12  |b*d..C."..4.....|
+00000020  20 2f f4 76 cd dc 82 eb  30 f9 e0 42 6b 29 16 ed  | /.v....0..Bk)..|
+00000030  7c f0                                             ||.|
diff --git a/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-AES256-GCM-SHA384 b/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-AES256-GCM-SHA384
index 22115d5..3975b07 100644
--- a/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-AES256-GCM-SHA384
+++ b/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-AES256-GCM-SHA384
@@ -16,11 +16,11 @@
 000000e0  e5 7d a3 47 cd 62 43 15  28 da ac 5f bb 29 07 30  |.}.G.bC.(.._.).0|
 000000f0  ff f6 84 af c4 cf c2 ed  90 99 5f 58 cb 3b 74     |.........._X.;t|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 59 02 00 00  55 03 03 41 6b 69 65 47  |....Y...U..AkieG|
-00000010  8c 15 2f d5 6d 1a 3d 0c  ff 56 ad 42 31 6c 1f 86  |../.m.=..V.B1l..|
-00000020  06 62 e3 e4 18 9c 5c 47  9e 8c 66 20 af ba 7c 62  |.b....\G..f ..|b|
-00000030  c2 32 f4 49 f1 8d f4 ba  7a 51 23 32 46 96 7e b8  |.2.I....zQ#2F.~.|
-00000040  f0 2c ae 0a d4 04 49 16  4a 64 79 c8 c0 30 00 00  |.,....I.Jdy..0..|
+00000000  16 03 03 00 59 02 00 00  55 03 03 d4 20 b3 4c 6a  |....Y...U... .Lj|
+00000010  69 44 3f f7 ab 15 35 85  ca 71 02 b0 70 18 8e d6  |iD?...5..q..p...|
+00000020  61 d5 34 08 42 de cf a1  57 32 96 20 8c b4 72 dd  |a.4.B...W2. ..r.|
+00000030  63 93 e6 13 9d 4a ec 75  d9 a1 a6 9e 5e 02 f5 63  |c....J.u....^..c|
+00000040  29 1a 78 9f 94 9f 6c 58  b5 91 ae 63 c0 30 00 00  |).x...lX...c.0..|
 00000050  0d ff 01 00 01 00 00 0b  00 04 03 00 01 02 16 03  |................|
 00000060  03 02 59 0b 00 02 55 00  02 52 00 02 4f 30 82 02  |..Y...U..R..O0..|
 00000070  4b 30 82 01 b4 a0 03 02  01 02 02 09 00 e8 f0 9d  |K0..............|
@@ -60,17 +60,17 @@
 00000290  77 8d 0c 1c f1 0f a1 d8  40 83 61 c9 4c 72 2b 9d  |w.......@.a.Lr+.|
 000002a0  ae db 46 06 06 4d f4 c1  b3 3e c0 d1 bd 42 d4 db  |..F..M...>...B..|
 000002b0  fe 3d 13 60 84 5c 21 d3  3b e9 fa e7 16 03 03 00  |.=.`.\!.;.......|
-000002c0  ac 0c 00 00 a8 03 00 1d  20 9e 80 b0 95 af 3b 4c  |........ .....;L|
-000002d0  e7 fb 97 65 d0 36 8f 97  88 0d 3b 5d a0 21 a8 78  |...e.6....;].!.x|
-000002e0  81 39 4c 80 5c 58 52 6e  68 08 04 00 80 41 c6 e7  |.9L.\XRnh....A..|
-000002f0  c9 48 c1 be 17 a6 a3 3c  3a de c8 c8 86 6e 70 37  |.H.....<:....np7|
-00000300  2f d3 ed 8a dd 3a 73 5c  b5 23 49 a8 4a fe e9 2b  |/....:s\.#I.J..+|
-00000310  4e 99 43 b8 e8 05 f9 fe  90 bf 74 be 92 3d d8 a3  |N.C.......t..=..|
-00000320  c2 b2 38 80 1c 82 1f 35  e1 2e 04 bf a6 0a ec 3f  |..8....5.......?|
-00000330  81 4c a2 2b 19 8f 91 4c  51 b5 0d 52 1e 69 84 0a  |.L.+...LQ..R.i..|
-00000340  b0 cb de 41 1a bd a6 3d  50 9a ca d2 c0 26 11 3f  |...A...=P....&.?|
-00000350  cd 80 b4 2d 6e 03 f2 c5  2b cd 9c b6 a4 d8 e6 cf  |...-n...+.......|
-00000360  ec 1d 7a a9 17 59 6c 89  17 2f 64 0a 7c 16 03 03  |..z..Yl../d.|...|
+000002c0  ac 0c 00 00 a8 03 00 1d  20 a2 bd 95 3e 0c 9f ad  |........ ...>...|
+000002d0  11 59 e0 6a c1 21 0c 6c  86 cc f1 ce bd a0 30 5d  |.Y.j.!.l......0]|
+000002e0  53 1e 75 f9 55 af 49 7b  31 08 04 00 80 d4 8b 11  |S.u.U.I{1.......|
+000002f0  ca 22 14 79 a3 e8 b6 c7  d0 d6 1b 17 42 93 47 30  |.".y........B.G0|
+00000300  ab 50 0e c9 0c 92 88 96  b4 63 4e 4e ac 7f dd c8  |.P.......cNN....|
+00000310  8f 85 07 5b 95 c5 0a c0  4e 6d 4f 51 ba d8 d7 db  |...[....NmOQ....|
+00000320  14 70 80 4f 68 d9 b4 39  e7 48 27 21 76 4c 79 a4  |.p.Oh..9.H'!vLy.|
+00000330  60 91 d7 2f 75 69 04 1a  da 71 ff b8 4d 78 d8 e7  |`../ui...q..Mx..|
+00000340  ca f2 f2 1e 71 21 b3 a0  44 a7 6c 99 16 a1 c9 f8  |....q!..D.l.....|
+00000350  f0 de e8 99 12 7b 3d a2  e3 15 fa 63 62 e9 1b 72  |.....{=....cb..r|
+00000360  c8 bb 27 38 4a 48 66 1d  dd fb ef 6f d1 16 03 03  |..'8JHf....o....|
 00000370  00 3a 0d 00 00 36 03 01  02 40 00 2e 04 03 05 03  |.:...6...@......|
 00000380  06 03 08 07 08 08 08 09  08 0a 08 0b 08 04 08 05  |................|
 00000390  08 06 04 01 05 01 06 01  03 03 02 03 03 01 02 01  |................|
@@ -112,26 +112,26 @@
 00000200  e5 35 16 03 03 00 25 10  00 00 21 20 2f e5 7d a3  |.5....%...! /.}.|
 00000210  47 cd 62 43 15 28 da ac  5f bb 29 07 30 ff f6 84  |G.bC.(.._.).0...|
 00000220  af c4 cf c2 ed 90 99 5f  58 cb 3b 74 16 03 03 00  |......._X.;t....|
-00000230  88 0f 00 00 84 04 01 00  80 29 22 23 51 c5 71 4a  |.........)"#Q.qJ|
-00000240  32 eb 72 6b f2 c8 46 99  df fe d5 a7 0c 55 3c 40  |2.rk..F......U<@|
-00000250  e1 1e 09 4c 40 83 8a 0d  67 27 63 21 d2 36 66 8f  |...L@...g'c!.6f.|
-00000260  cb 97 4b 87 8a ed 9a 44  81 97 34 4b 9b 12 27 f5  |..K....D..4K..'.|
-00000270  d8 63 9b 1f cf d7 b4 2b  54 99 86 2d cd 36 9f 3e  |.c.....+T..-.6.>|
-00000280  92 af 5a a6 0c 8a e0 e3  d3 b9 9b 47 ea 67 61 69  |..Z........G.gai|
-00000290  d8 c1 86 1d fd 43 d4 1f  5c f5 48 d8 4a 97 a7 0f  |.....C..\.H.J...|
-000002a0  57 59 b0 5f e8 24 3f 9e  1d 96 3d 4b be 9c fa e3  |WY._.$?...=K....|
-000002b0  3b 34 7e aa 67 d7 cc ea  78 14 03 03 00 01 01 16  |;4~.g...x.......|
-000002c0  03 03 00 28 00 00 00 00  00 00 00 00 33 b3 7b c9  |...(........3.{.|
-000002d0  3f e8 7d 08 3d 65 a3 22  fa e3 04 79 d9 9f 54 a3  |?.}.=e."...y..T.|
-000002e0  45 e7 64 b2 5d 95 cf dd  88 cc ba 0b              |E.d.].......|
+00000230  88 0f 00 00 84 08 04 00  80 2e bf 05 22 82 a7 d6  |............"...|
+00000240  e9 08 ff 9b 10 d3 4a 6c  c4 73 5c 78 88 05 0c 15  |......Jl.s\x....|
+00000250  b7 8c 78 49 64 2d 58 67  ef 8f db c0 67 fa 32 6e  |..xId-Xg....g.2n|
+00000260  65 45 90 a0 69 5c fb ba  e0 16 1c d4 81 1d 24 89  |eE..i\........$.|
+00000270  35 27 14 15 19 0b 86 ee  6a f2 b4 a5 27 61 5f 1f  |5'......j...'a_.|
+00000280  cc 47 7c 01 ed a9 ff ed  61 45 3f 53 1c 82 c8 cd  |.G|.....aE?S....|
+00000290  48 e4 89 82 12 d7 d2 ff  fa 32 b3 e6 9d ce 75 75  |H........2....uu|
+000002a0  d1 cd b2 a8 56 a6 a6 63  da 8d ed 27 13 01 9a 56  |....V..c...'...V|
+000002b0  a2 26 b4 6c af 27 f6 4f  1b 14 03 03 00 01 01 16  |.&.l.'.O........|
+000002c0  03 03 00 28 00 00 00 00  00 00 00 00 f0 e8 32 33  |...(..........23|
+000002d0  50 df 73 17 3c 58 f2 c9  30 2e 5d e9 00 4f 4b 33  |P.s.<X..0.]..OK3|
+000002e0  22 12 f7 f0 62 d0 62 3e  ed 36 b8 58              |"...b.b>.6.X|
 >>> Flow 4 (server to client)
-00000000  14 03 03 00 01 01 16 03  03 00 28 7e 38 ab 82 0c  |..........(~8...|
-00000010  fd fa b9 83 3e 77 ed 22  b5 9d d3 c1 ca cd 18 c5  |....>w."........|
-00000020  1c 01 a0 b8 8b 96 20 92  7b bd 0a 33 ee fe be 75  |...... .{..3...u|
-00000030  95 6e 0c                                          |.n.|
+00000000  14 03 03 00 01 01 16 03  03 00 28 14 ce b1 86 0e  |..........(.....|
+00000010  9f ce 73 25 44 b7 3e a9  25 db a8 93 d9 39 33 75  |..s%D.>.%....93u|
+00000020  2f a9 7f 97 6a 76 28 fe  e2 84 5f 1e 84 66 b4 c8  |/...jv(..._..f..|
+00000030  45 e7 64                                          |E.d|
 >>> Flow 5 (client to server)
-00000000  17 03 03 00 1e 00 00 00  00 00 00 00 01 9d f0 cd  |................|
-00000010  53 8d 1a 45 ae 4a e4 01  97 dd ac f1 00 d3 aa b6  |S..E.J..........|
-00000020  bf c9 bc 15 03 03 00 1a  00 00 00 00 00 00 00 02  |................|
-00000030  aa 1b 41 d5 f5 68 41 b8  32 94 9b 23 f8 60 7b 60  |..A..hA.2..#.`{`|
-00000040  2c 8a                                             |,.|
+00000000  17 03 03 00 1e 00 00 00  00 00 00 00 01 3b 17 73  |.............;.s|
+00000010  78 d6 3a b4 6d 3a 61 52  f6 a5 8c dd 18 3e ff 04  |x.:.m:aR.....>..|
+00000020  d9 3f 22 15 03 03 00 1a  00 00 00 00 00 00 00 02  |.?".............|
+00000030  32 8d 5d 07 14 a9 d2 1c  dd 1e 2f 3d 89 a9 8f 1d  |2.]......./=....|
+00000040  08 0f                                             |..|
diff --git a/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-ECDSA b/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-ECDSA
index db82b38..2d608a7 100644
--- a/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-ECDSA
+++ b/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-ECDSA
@@ -16,11 +16,11 @@
 000000e0  e5 7d a3 47 cd 62 43 15  28 da ac 5f bb 29 07 30  |.}.G.bC.(.._.).0|
 000000f0  ff f6 84 af c4 cf c2 ed  90 99 5f 58 cb 3b 74     |.........._X.;t|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 59 02 00 00  55 03 03 59 e6 a5 3d 5a  |....Y...U..Y..=Z|
-00000010  bf 25 a3 16 e7 e3 da cb  ac b7 11 09 0a 1a 8a c5  |.%..............|
-00000020  33 a2 a6 58 12 27 cd 52  15 28 c9 20 23 9a f5 d3  |3..X.'.R.(. #...|
-00000030  d4 df 49 1d 01 87 12 36  03 c6 36 17 39 d0 db 62  |..I....6..6.9..b|
-00000040  22 48 7e 57 20 ab a3 7c  b0 53 7e f1 c0 09 00 00  |"H~W ..|.S~.....|
+00000000  16 03 03 00 59 02 00 00  55 03 03 3c ba b1 d8 8d  |....Y...U..<....|
+00000010  f5 52 f4 a4 70 fc 12 54  20 85 eb 23 bc b8 0b e0  |.R..p..T ..#....|
+00000020  80 b6 ab 9b c5 34 84 57  bc ae 95 20 e3 51 8d 40  |.....4.W... .Q.@|
+00000030  93 cc 9f e4 fd 77 82 c8  12 54 6a 23 08 db ff e5  |.....w...Tj#....|
+00000040  87 8d 72 41 60 51 6a 11  5f 0a 9a d2 c0 09 00 00  |..rA`Qj._.......|
 00000050  0d ff 01 00 01 00 00 0b  00 04 03 00 01 02 16 03  |................|
 00000060  03 02 0e 0b 00 02 0a 00  02 07 00 02 04 30 82 02  |.............0..|
 00000070  00 30 82 01 62 02 09 00  b8 bf 2d 47 a0 d2 eb f4  |.0..b.....-G....|
@@ -55,23 +55,23 @@
 00000240  13 83 0d 94 06 bb d4 37  7a f6 ec 7a c9 86 2e dd  |.......7z..z....|
 00000250  d7 11 69 7f 85 7c 56 de  fb 31 78 2b e4 c7 78 0d  |..i..|V..1x+..x.|
 00000260  ae cb be 9e 4e 36 24 31  7b 6a 0f 39 95 12 07 8f  |....N6$1{j.9....|
-00000270  2a 16 03 03 00 b6 0c 00  00 b2 03 00 1d 20 a7 6b  |*............ .k|
-00000280  75 97 e7 04 a7 19 99 af  c7 73 72 82 59 7d 16 46  |u........sr.Y}.F|
-00000290  de 80 c2 d3 36 c7 e8 42  89 ca 8d db 11 39 04 03  |....6..B.....9..|
-000002a0  00 8a 30 81 87 02 41 73  4f fe e2 00 9d bf 60 0a  |..0...AsO.....`.|
-000002b0  36 0b 97 8a fc 3e 8c 1d  ac ff a2 0b 7a dc 8d 2f  |6....>......z../|
-000002c0  d7 90 da 18 a0 14 8a 7c  51 4c a6 ae ec 13 ee 5e  |.......|QL.....^|
-000002d0  1a 60 aa 2f 5a d2 05 48  fb bb bb 3a 1a dc fa 21  |.`./Z..H...:...!|
-000002e0  df 7b 6d 83 23 d6 62 0f  02 42 01 7f 5a 36 6d f4  |.{m.#.b..B..Z6m.|
-000002f0  0d f5 d0 6f d9 71 52 f8  eb e3 ed 7c 40 fd 64 14  |...o.qR....|@.d.|
-00000300  c1 31 4d 4b 78 70 5d 9f  61 18 3b 87 01 10 94 e5  |.1MKxp].a.;.....|
-00000310  7b 83 34 2d cd 90 50 db  10 62 8d 36 40 45 20 c0  |{.4-..P..b.6@E .|
-00000320  db ce de 5e b3 63 de 60  db bb fe be 16 03 03 00  |...^.c.`........|
-00000330  3a 0d 00 00 36 03 01 02  40 00 2e 04 03 05 03 06  |:...6...@.......|
-00000340  03 08 07 08 08 08 09 08  0a 08 0b 08 04 08 05 08  |................|
-00000350  06 04 01 05 01 06 01 03  03 02 03 03 01 02 01 03  |................|
-00000360  02 02 02 04 02 05 02 06  02 00 00 16 03 03 00 04  |................|
-00000370  0e 00 00 00                                       |....|
+00000270  2a 16 03 03 00 b7 0c 00  00 b3 03 00 1d 20 86 f3  |*............ ..|
+00000280  1e c5 fb 1f 91 44 0e e5  e4 3e 0a cd 75 a2 fb 4c  |.....D...>..u..L|
+00000290  a2 b9 07 f7 33 ce cc cd  61 a5 8c ba 6a 35 04 03  |....3...a...j5..|
+000002a0  00 8b 30 81 88 02 42 01  f4 8d 4f 3e c8 73 b5 b4  |..0...B...O>.s..|
+000002b0  b5 2b ac 2a 27 68 56 a1  45 ce b6 1d c6 37 ce de  |.+.*'hV.E....7..|
+000002c0  bd 96 90 5e e2 1c c8 84  b2 84 57 25 81 d4 c3 7a  |...^......W%...z|
+000002d0  db b2 3d 24 2b 17 3a 4a  7e 92 1a bb 0c fb b6 05  |..=$+.:J~.......|
+000002e0  cd 0e 85 4c 3d 4b 24 2a  2a 02 42 00 f6 91 d6 82  |...L=K$**.B.....|
+000002f0  9e 81 98 5f 64 59 ce 16  85 fc 65 19 0c 50 ca ea  |..._dY....e..P..|
+00000300  8a ba 1e 61 a8 71 cf 2c  eb 94 24 ac 34 75 6e 5c  |...a.q.,..$.4un\|
+00000310  dc 92 ba b8 bd 42 75 ef  6d 67 5f 06 5c e3 6c c2  |.....Bu.mg_.\.l.|
+00000320  aa 5e 29 25 66 00 68 c8  5d 9c 6f bb e0 16 03 03  |.^)%f.h.].o.....|
+00000330  00 3a 0d 00 00 36 03 01  02 40 00 2e 04 03 05 03  |.:...6...@......|
+00000340  06 03 08 07 08 08 08 09  08 0a 08 0b 08 04 08 05  |................|
+00000350  08 06 04 01 05 01 06 01  03 03 02 03 03 01 02 01  |................|
+00000360  03 02 02 02 04 02 05 02  06 02 00 00 16 03 03 00  |................|
+00000370  04 0e 00 00 00                                    |.....|
 >>> Flow 3 (client to server)
 00000000  16 03 03 01 fd 0b 00 01  f9 00 01 f6 00 01 f3 30  |...............0|
 00000010  82 01 ef 30 82 01 58 a0  03 02 01 02 02 10 5c 19  |...0..X.......\.|
@@ -108,31 +108,31 @@
 00000200  e5 35 16 03 03 00 25 10  00 00 21 20 2f e5 7d a3  |.5....%...! /.}.|
 00000210  47 cd 62 43 15 28 da ac  5f bb 29 07 30 ff f6 84  |G.bC.(.._.).0...|
 00000220  af c4 cf c2 ed 90 99 5f  58 cb 3b 74 16 03 03 00  |......._X.;t....|
-00000230  88 0f 00 00 84 04 01 00  80 88 59 ec 09 a4 c9 5e  |..........Y....^|
-00000240  37 b4 e3 04 71 52 1a 5a  6d d6 9b f6 09 14 01 c2  |7...qR.Zm.......|
-00000250  3e 07 19 2f ec 15 d9 5b  12 6a 6e de 78 a3 ac 58  |>../...[.jn.x..X|
-00000260  40 44 f2 66 0a 12 a5 62  37 8b af 5a 3a 20 be f2  |@D.f...b7..Z: ..|
-00000270  6f 43 c8 00 69 21 c8 fd  b0 cf 00 74 c3 96 a0 8b  |oC..i!.....t....|
-00000280  6f ce c1 09 e6 90 1d 8e  53 40 b8 44 83 b9 46 9c  |o.......S@.D..F.|
-00000290  78 3b c1 0a 36 68 a5 04  e8 b5 ed 6d 7d 09 21 8c  |x;..6h.....m}.!.|
-000002a0  0e 00 0c 5e d0 2b 47 c9  f6 31 f6 8f 7b b6 2d 8d  |...^.+G..1..{.-.|
-000002b0  ec 4e c2 0d 08 c5 1b 26  b6 14 03 03 00 01 01 16  |.N.....&........|
+00000230  88 0f 00 00 84 08 04 00  80 53 85 ea dc a6 86 2d  |.........S.....-|
+00000240  e7 8c 0b 68 f9 57 7f f5  77 d8 fe 35 28 91 e7 2f  |...h.W..w..5(../|
+00000250  8a 2c 36 cf d7 8c 9f 3d  f2 e2 99 41 11 b2 3c a2  |.,6....=...A..<.|
+00000260  5e f3 68 1f b5 d4 f8 90  8a e2 5e 02 48 00 2b eb  |^.h.......^.H.+.|
+00000270  f0 e6 8c 28 af 11 80 82  ea 35 06 fd 0a 5f d7 1a  |...(.....5..._..|
+00000280  e9 63 29 08 8c aa 18 1e  7c 08 81 21 c8 aa 86 b1  |.c).....|..!....|
+00000290  cf 94 db f6 8d 15 dc cc  ae cf 41 2c 32 b1 3f 0c  |..........A,2.?.|
+000002a0  96 0e 5c ed 82 74 cc fc  35 f4 38 80 29 00 c1 3a  |..\..t..5.8.)..:|
+000002b0  70 d4 07 07 9c 49 9e 7b  91 14 03 03 00 01 01 16  |p....I.{........|
 000002c0  03 03 00 40 00 00 00 00  00 00 00 00 00 00 00 00  |...@............|
-000002d0  00 00 00 00 e7 64 7d 04  bb bf dd 2a ac fd 96 81  |.....d}....*....|
-000002e0  25 d8 3e 6c 1d 53 c7 79  31 4d 13 c3 71 d3 da c0  |%.>l.S.y1M..q...|
-000002f0  f8 74 11 bb 6b 9d 62 66  ed f0 97 ab 43 fe 12 cb  |.t..k.bf....C...|
-00000300  da 8d c2 4b                                       |...K|
+000002d0  00 00 00 00 f3 da dc d7  12 d6 f6 19 75 a8 02 68  |............u..h|
+000002e0  57 0e e1 90 75 d1 fc b8  32 a3 34 16 d6 8d 2a f5  |W...u...2.4...*.|
+000002f0  65 f2 a7 67 2c 2c a4 73  6a b6 f2 ad 2d 7f 8a ce  |e..g,,.sj...-...|
+00000300  a7 12 16 97                                       |....|
 >>> Flow 4 (server to client)
-00000000  14 03 03 00 01 01 16 03  03 00 40 35 ee 36 65 9a  |..........@5.6e.|
-00000010  e5 ac c7 30 18 b6 ff f9  fd fa 66 88 a7 73 be ba  |...0......f..s..|
-00000020  d5 89 59 26 cf 2d 8d 31  48 f0 fb 09 c1 66 ef eb  |..Y&.-.1H....f..|
-00000030  94 30 b7 47 71 a1 cb 03  34 37 14 f5 76 14 13 a9  |.0.Gq...47..v...|
-00000040  6f d7 4d 59 c1 63 f8 db  8b 74 36                 |o.MY.c...t6|
+00000000  14 03 03 00 01 01 16 03  03 00 40 dc 11 a1 a2 fb  |..........@.....|
+00000010  55 0c 9e e0 e2 55 1a ca  cd 5b df 1f 39 9e 08 51  |U....U...[..9..Q|
+00000020  bd 6b 72 40 93 f8 23 7a  32 9d 85 18 20 b7 39 b0  |.kr@..#z2... .9.|
+00000030  03 d3 10 6a 8e 66 6d e6  d5 38 03 c6 e5 b8 dc d7  |...j.fm..8......|
+00000040  3c 27 1d d2 a9 59 f9 18  7d 15 90                 |<'...Y..}..|
 >>> Flow 5 (client to server)
 00000000  17 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-00000010  00 00 00 00 00 19 16 39  bc a3 30 b5 1d ae e5 a9  |.......9..0.....|
-00000020  74 89 1e d1 77 86 8f 85  55 fa af cb 0a 94 45 f4  |t...w...U.....E.|
-00000030  a9 fa 21 c5 54 15 03 03  00 30 00 00 00 00 00 00  |..!.T....0......|
-00000040  00 00 00 00 00 00 00 00  00 00 40 17 27 41 8c ae  |..........@.'A..|
-00000050  74 59 34 f0 2e 72 34 4e  98 6e d8 da 17 07 b3 14  |tY4..r4N.n......|
-00000060  d8 c8 2c ad b6 3e 44 5a  3e d7                    |..,..>DZ>.|
+00000010  00 00 00 00 00 c2 92 ee  96 31 60 90 d5 ee a6 1c  |.........1`.....|
+00000020  ed 3c 03 40 8c e7 0c db  7f b0 11 dc 7e 58 e1 aa  |.<.@........~X..|
+00000030  4c d7 68 2a 91 15 03 03  00 30 00 00 00 00 00 00  |L.h*.....0......|
+00000040  00 00 00 00 00 00 00 00  00 00 b6 61 51 ac 66 a5  |...........aQ.f.|
+00000050  d1 ef d3 ee c8 d3 48 72  d5 e0 ef 7d ca 6a ec b2  |......Hr...}.j..|
+00000060  77 ff 2d a8 32 6d be 6e  a7 42                    |w.-.2m.n.B|
diff --git a/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-RSA b/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-RSA
index 02b11a6..cdc7104 100644
--- a/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-RSA
+++ b/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-RSA
@@ -16,11 +16,11 @@
 000000e0  e5 7d a3 47 cd 62 43 15  28 da ac 5f bb 29 07 30  |.}.G.bC.(.._.).0|
 000000f0  ff f6 84 af c4 cf c2 ed  90 99 5f 58 cb 3b 74     |.........._X.;t|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 59 02 00 00  55 03 03 43 a0 10 ae 54  |....Y...U..C...T|
-00000010  09 23 be 14 d7 1d b3 64  66 5e 39 4e 42 ed 58 3a  |.#.....df^9NB.X:|
-00000020  1b de 35 eb ee 9b 86 44  fe 2b a8 20 e7 f1 4a 47  |..5....D.+. ..JG|
-00000030  b1 6b f0 fb d7 ed 3c 33  4a 52 bc 9b 39 c0 16 d3  |.k....<3JR..9...|
-00000040  f4 0a 7c 38 7e b3 95 31  7a c7 c8 f4 c0 2f 00 00  |..|8~..1z..../..|
+00000000  16 03 03 00 59 02 00 00  55 03 03 f3 28 ca c9 ac  |....Y...U...(...|
+00000010  29 bb 15 80 56 d2 37 09  fa 7d 23 04 d4 79 e7 1d  |)...V.7..}#..y..|
+00000020  bb 4e c5 60 c8 44 39 02  6a e9 e0 20 b5 ae 39 87  |.N.`.D9.j.. ..9.|
+00000030  4e 24 2f 33 02 fe 72 d6  2a 4d 0c 8c da 36 7b 28  |N$/3..r.*M...6{(|
+00000040  3c 06 aa b2 60 68 91 7a  ae d8 7b e2 c0 2f 00 00  |<...`h.z..{../..|
 00000050  0d ff 01 00 01 00 00 0b  00 04 03 00 01 02 16 03  |................|
 00000060  03 02 59 0b 00 02 55 00  02 52 00 02 4f 30 82 02  |..Y...U..R..O0..|
 00000070  4b 30 82 01 b4 a0 03 02  01 02 02 09 00 e8 f0 9d  |K0..............|
@@ -60,17 +60,17 @@
 00000290  77 8d 0c 1c f1 0f a1 d8  40 83 61 c9 4c 72 2b 9d  |w.......@.a.Lr+.|
 000002a0  ae db 46 06 06 4d f4 c1  b3 3e c0 d1 bd 42 d4 db  |..F..M...>...B..|
 000002b0  fe 3d 13 60 84 5c 21 d3  3b e9 fa e7 16 03 03 00  |.=.`.\!.;.......|
-000002c0  ac 0c 00 00 a8 03 00 1d  20 e7 c6 c3 84 0a b7 55  |........ ......U|
-000002d0  ff fb ae 43 10 da 03 0d  7d 91 77 90 cd 05 6a ab  |...C....}.w...j.|
-000002e0  08 35 5a 38 23 79 45 9f  54 08 04 00 80 d8 b8 a1  |.5Z8#yE.T.......|
-000002f0  67 15 39 93 cc d0 ac e7  55 85 3e 62 f3 a6 d8 35  |g.9.....U.>b...5|
-00000300  5e bb 60 4e 33 70 05 47  b8 9e 8c e6 85 65 09 e2  |^.`N3p.G.....e..|
-00000310  95 4f 8a d9 4b cb 60 62  3c ef 57 81 ed b4 20 cf  |.O..K.`b<.W... .|
-00000320  b1 71 d9 62 57 60 fa 07  89 12 a1 90 8f 8f 06 4a  |.q.bW`.........J|
-00000330  56 c3 81 e0 b6 11 9e ce  33 fe 0f 4e b2 84 cc 4b  |V.......3..N...K|
-00000340  dc d4 71 e4 43 04 61 11  a9 a6 8a 20 43 a7 0e b6  |..q.C.a.... C...|
-00000350  a8 97 43 1b e0 a9 b1 0f  e8 19 68 0a 5d 38 d9 69  |..C.......h.]8.i|
-00000360  22 65 16 aa 05 16 11 cd  66 4a 4f be 90 16 03 03  |"e......fJO.....|
+000002c0  ac 0c 00 00 a8 03 00 1d  20 d4 df 5d 10 ee ba a6  |........ ..]....|
+000002d0  51 d7 1b fb bf ed bc d6  b9 34 44 e7 af 23 0e 9b  |Q........4D..#..|
+000002e0  45 af ba 7a 89 63 03 a9  4c 08 04 00 80 30 2c 0f  |E..z.c..L....0,.|
+000002f0  2e d9 e4 1d c2 90 01 1c  cc cf d4 fe 06 6d c3 aa  |.............m..|
+00000300  59 d9 d9 bc 16 2f 2c b1  be 90 a3 93 a7 be bc 4d  |Y..../,........M|
+00000310  d8 f4 ac 21 36 59 a8 21  94 ef d3 c4 53 14 34 18  |...!6Y.!....S.4.|
+00000320  c9 10 d5 77 fd 1e ad 15  0f 23 d7 73 90 7a c0 7b  |...w.....#.s.z.{|
+00000330  b3 b2 e2 df 15 42 35 ce  38 05 52 02 77 b7 b2 2b  |.....B5.8.R.w..+|
+00000340  6b 88 6a ce d4 20 99 9d  e4 fe e8 38 1e 01 b7 78  |k.j.. .....8...x|
+00000350  3c ea ac 8e ef 2f 7e e8  22 08 78 42 b7 db 84 80  |<..../~.".xB....|
+00000360  8c 61 8a c5 cc d7 1f 6a  8d 5c 1d 2d 0d 16 03 03  |.a.....j.\.-....|
 00000370  00 3a 0d 00 00 36 03 01  02 40 00 2e 04 03 05 03  |.:...6...@......|
 00000380  06 03 08 07 08 08 08 09  08 0a 08 0b 08 04 08 05  |................|
 00000390  08 06 04 01 05 01 06 01  03 03 02 03 03 01 02 01  |................|
@@ -112,26 +112,26 @@
 00000200  e5 35 16 03 03 00 25 10  00 00 21 20 2f e5 7d a3  |.5....%...! /.}.|
 00000210  47 cd 62 43 15 28 da ac  5f bb 29 07 30 ff f6 84  |G.bC.(.._.).0...|
 00000220  af c4 cf c2 ed 90 99 5f  58 cb 3b 74 16 03 03 00  |......._X.;t....|
-00000230  88 0f 00 00 84 04 01 00  80 2e af 25 b4 ff 00 08  |...........%....|
-00000240  c8 dc 24 49 d5 9b d0 fe  b5 81 8d 4e 15 d4 63 bf  |..$I.......N..c.|
-00000250  8e 4c a4 7d 96 58 a2 4b  f4 25 a8 e3 39 fc df 2d  |.L.}.X.K.%..9..-|
-00000260  7c a0 20 61 86 35 8e 7e  ba a5 2c f3 07 ad 84 36  ||. a.5.~..,....6|
-00000270  df ef 66 e9 78 d8 5f b3  17 45 31 d4 4a 38 5c 6c  |..f.x._..E1.J8\l|
-00000280  03 73 3b 74 60 c9 00 d1  64 59 c9 a5 39 00 fc bf  |.s;t`...dY..9...|
-00000290  9c 3a 99 46 4b 71 90 64  8a 24 2e 37 cf 8a 42 c2  |.:.FKq.d.$.7..B.|
-000002a0  56 a6 94 97 60 c5 56 ba  de 71 78 6c f2 be ce 16  |V...`.V..qxl....|
-000002b0  47 ca 0d 95 3c cc b8 6f  b2 14 03 03 00 01 01 16  |G...<..o........|
-000002c0  03 03 00 28 00 00 00 00  00 00 00 00 8e 0e 3b 43  |...(..........;C|
-000002d0  63 52 24 16 91 bc 50 85  ef 34 ad b9 f0 45 e7 4c  |cR$...P..4...E.L|
-000002e0  9a 07 1d 46 53 2c 89 79  0f 27 dc 9d              |...FS,.y.'..|
+00000230  88 0f 00 00 84 08 04 00  80 b8 96 b3 c8 66 a9 fb  |.............f..|
+00000240  da 1b 82 65 9d 57 e5 e5  e5 60 c9 43 df 6e 99 53  |...e.W...`.C.n.S|
+00000250  45 95 b8 58 d1 19 05 50  e1 a7 3c e8 07 ad 57 09  |E..X...P..<...W.|
+00000260  9c 95 13 ea 80 24 53 56  b1 13 2d 59 9d e9 60 0f  |.....$SV..-Y..`.|
+00000270  75 97 d3 4f 82 3a b5 41  3e 90 75 ea 28 97 00 e7  |u..O.:.A>.u.(...|
+00000280  74 c9 04 1d d0 16 ba 40  75 9c ae a0 bd 00 b1 a9  |t......@u.......|
+00000290  86 d5 1a f2 30 45 72 99  ea b2 eb 61 b1 63 72 c5  |....0Er....a.cr.|
+000002a0  ad b1 60 a8 fa bd 95 95  17 03 4c 8e 87 4b 44 e5  |..`.......L..KD.|
+000002b0  ec f3 e0 48 33 b8 a9 74  78 14 03 03 00 01 01 16  |...H3..tx.......|
+000002c0  03 03 00 28 00 00 00 00  00 00 00 00 e6 a6 db ee  |...(............|
+000002d0  7d fb 48 9f 81 a6 78 6a  db a1 9a bb c8 da 7b b2  |}.H...xj......{.|
+000002e0  6a 01 66 fb 85 a7 2f 35  40 77 b6 b2              |j.f.../5@w..|
 >>> Flow 4 (server to client)
-00000000  14 03 03 00 01 01 16 03  03 00 28 2f 40 03 cf 5a  |..........(/@..Z|
-00000010  76 6c 87 87 8d 99 4c e8  76 73 6a 62 1d a5 31 bc  |vl....L.vsjb..1.|
-00000020  2e 7e 23 8c 50 bf 07 b9  13 53 4a 59 a0 9b 74 b7  |.~#.P....SJY..t.|
-00000030  53 21 2d                                          |S!-|
+00000000  14 03 03 00 01 01 16 03  03 00 28 b3 9c 30 b6 a2  |..........(..0..|
+00000010  cb cf 75 38 10 e7 80 39  0e 87 39 9c d9 da 2c 53  |..u8...9..9...,S|
+00000020  1a 64 2d 33 ff 21 25 e9  3c f2 ec 6d a4 59 f4 30  |.d-3.!%.<..m.Y.0|
+00000030  ea 41 24                                          |.A$|
 >>> Flow 5 (client to server)
-00000000  17 03 03 00 1e 00 00 00  00 00 00 00 01 83 69 b1  |..............i.|
-00000010  20 19 eb db d4 58 e7 f1  5a 95 b0 d3 9d 3b 74 ad  | ....X..Z....;t.|
-00000020  bc 94 c4 15 03 03 00 1a  00 00 00 00 00 00 00 02  |................|
-00000030  7d 89 89 25 40 be 0d fc  24 d0 ff 5a 0f 24 5d f2  |}..%@...$..Z.$].|
-00000040  a3 ab                                             |..|
+00000000  17 03 03 00 1e 00 00 00  00 00 00 00 01 65 72 8f  |.............er.|
+00000010  4a 5f 08 c1 f9 37 5d 30  bc c6 e6 5f a8 23 35 69  |J_...7]0..._.#5i|
+00000020  d3 3c 7a 15 03 03 00 1a  00 00 00 00 00 00 00 02  |.<z.............|
+00000030  b0 48 2e 2e ed 4d 9c db  3a fc ff e6 57 83 fc 90  |.H...M..:...W...|
+00000040  aa 78                                             |.x|
diff --git a/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-RSAPSS b/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-RSAPSS
index f788e6f..3f74080 100644
--- a/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-RSAPSS
+++ b/libgo/go/crypto/tls/testdata/Client-TLSv12-ClientCert-RSA-RSAPSS
@@ -16,11 +16,11 @@
 000000e0  e5 7d a3 47 cd 62 43 15  28 da ac 5f bb 29 07 30  |.}.G.bC.(.._.).0|
 000000f0  ff f6 84 af c4 cf c2 ed  90 99 5f 58 cb 3b 74     |.........._X.;t|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 59 02 00 00  55 03 03 be 63 44 bb 7e  |....Y...U...cD.~|
-00000010  0d 88 88 15 b1 ed 7e 75  03 57 25 1a 0c 52 42 31  |......~u.W%..RB1|
-00000020  f8 e1 46 e3 11 27 ff 05  5e 26 2e 20 e6 31 d0 a6  |..F..'..^&. .1..|
-00000030  d9 7c 69 a6 57 09 ee 50  c5 3c 5e 1d a0 a7 2b 7a  |.|i.W..P.<^...+z|
-00000040  7c dd 04 b4 38 45 c9 90  a0 98 33 68 c0 2f 00 00  ||...8E....3h./..|
+00000000  16 03 03 00 59 02 00 00  55 03 03 29 bc e2 fe ae  |....Y...U..)....|
+00000010  0a db 37 e6 39 d5 48 24  3d 0f e5 d7 6b a3 69 dd  |..7.9.H$=...k.i.|
+00000020  ce 09 fd 28 03 c2 7e 38  db c9 ec 20 d2 5e 3f 94  |...(..~8... .^?.|
+00000030  b0 2c 5e 4c 77 c2 94 c3  f2 a9 d0 91 4f 96 45 0e  |.,^Lw.......O.E.|
+00000040  d3 34 fc 9f e0 a5 e6 fc  1e 8a c1 00 c0 2f 00 00  |.4.........../..|
 00000050  0d ff 01 00 01 00 00 0b  00 04 03 00 01 02 16 03  |................|
 00000060  03 02 66 0b 00 02 62 00  02 5f 00 02 5c 30 82 02  |..f...b.._..\0..|
 00000070  58 30 82 01 8d a0 03 02  01 02 02 11 00 f2 99 26  |X0.............&|
@@ -61,18 +61,18 @@
 000002a0  11 89 66 79 d1 8e 88 0e  0b a0 9e 30 2a c0 67 ef  |..fy.......0*.g.|
 000002b0  ca 46 02 88 e9 53 81 22  69 22 97 ad 80 93 d4 f7  |.F...S."i"......|
 000002c0  dd 70 14 24 d7 70 0a 46  a1 16 03 03 00 ac 0c 00  |.p.$.p.F........|
-000002d0  00 a8 03 00 1d 20 60 8e  8a 17 8a fc b4 4f 01 ad  |..... `......O..|
-000002e0  f8 ef 44 f3 fc af 2a 90  57 7d ba 1d dd a6 17 cc  |..D...*.W}......|
-000002f0  c6 4a 5f a2 fb 47 08 04  00 80 46 d8 62 04 19 4a  |.J_..G....F.b..J|
-00000300  29 9b cc 3c 2c 0d 7e 67  3d 97 c0 32 65 90 28 e2  |)..<,.~g=..2e.(.|
-00000310  e9 df 7d 9b e1 62 82 a9  0b 22 99 a0 ae b9 7a 31  |..}..b..."....z1|
-00000320  75 c2 6e 61 e7 a5 64 b9  72 ce b8 04 b2 ca 14 78  |u.na..d.r......x|
-00000330  d4 b4 c2 b4 57 b4 a4 70  f9 d1 bf d0 77 e3 f5 66  |....W..p....w..f|
-00000340  c0 3f dd b2 40 30 3d d5  e9 a6 d1 49 79 ac ea b9  |.?..@0=....Iy...|
-00000350  38 43 52 3c a0 1c be 0d  18 a2 fc c0 a6 43 80 91  |8CR<.........C..|
-00000360  3f c5 c2 3a 43 31 92 ff  58 a8 40 52 b3 99 0f c4  |?..:C1..X.@R....|
-00000370  c6 00 89 0b b9 f4 9e 28  cd bf 16 03 03 00 0c 0d  |.......(........|
-00000380  00 00 08 01 01 00 02 04  01 00 00 16 03 03 00 04  |................|
+000002d0  00 a8 03 00 1d 20 9e e4  39 3a b3 d5 f9 51 16 d4  |..... ..9:...Q..|
+000002e0  a8 e1 0a 6d ad 3c ca 01  97 d6 a1 ce 03 2a 67 4a  |...m.<.......*gJ|
+000002f0  49 06 eb ed c6 24 08 04  00 80 b3 b7 9e fd 97 9b  |I....$..........|
+00000300  b0 d6 35 89 21 53 ff a8  4b 59 59 26 37 ac 2f 36  |..5.!S..KYY&7./6|
+00000310  27 3d 5a 04 3f 50 ed 36  e0 5f 1a d7 1b 36 47 94  |'=Z.?P.6._...6G.|
+00000320  45 ec 8c 0b 8f 0f fc df  ec 3c 56 f0 d0 28 45 94  |E........<V..(E.|
+00000330  96 c7 35 bb 42 31 a6 6e  eb 27 cf cf 7e 21 cf 2f  |..5.B1.n.'..~!./|
+00000340  a1 90 5d 2b 32 23 b3 de  40 a7 b6 56 c1 73 29 56  |..]+2#..@..V.s)V|
+00000350  3d 73 fe 34 b2 0b 58 97  16 e6 a1 1c 47 0e 24 a7  |=s.4..X.....G.$.|
+00000360  0d c9 a0 51 70 82 b1 d1  a6 a1 bc b4 49 77 c4 c4  |...Qp.......Iw..|
+00000370  87 ae c8 49 e6 80 ae d0  dd ca 16 03 03 00 0c 0d  |...I............|
+00000380  00 00 08 01 01 00 02 08  04 00 00 16 03 03 00 04  |................|
 00000390  0e 00 00 00                                       |....|
 >>> Flow 3 (client to server)
 00000000  16 03 03 02 66 0b 00 02  62 00 02 5f 00 02 5c 30  |....f...b.._..\0|
@@ -116,27 +116,27 @@
 00000260  d4 f7 dd 70 14 24 d7 70  0a 46 a1 16 03 03 00 25  |...p.$.p.F.....%|
 00000270  10 00 00 21 20 2f e5 7d  a3 47 cd 62 43 15 28 da  |...! /.}.G.bC.(.|
 00000280  ac 5f bb 29 07 30 ff f6  84 af c4 cf c2 ed 90 99  |._.).0..........|
-00000290  5f 58 cb 3b 74 16 03 03  00 88 0f 00 00 84 04 01  |_X.;t...........|
-000002a0  00 80 d5 bf 41 e0 65 7b  32 16 bb a3 92 48 f6 0e  |....A.e{2....H..|
-000002b0  31 eb ca a2 b7 1c b3 3a  b4 8f 91 0e 44 e8 9e ad  |1......:....D...|
-000002c0  f7 71 4c 71 20 da 59 29  09 4f 0b 1e fb 92 c5 ce  |.qLq .Y).O......|
-000002d0  7b a3 26 de 89 be f5 cc  b6 be dc af 09 6a f9 a2  |{.&..........j..|
-000002e0  f0 65 5c 39 2d ad 2c 46  ce df 26 09 2e 99 5d 9e  |.e\9-.,F..&...].|
-000002f0  58 2b cf 1f ed b5 1a 4b  21 0b d8 ec 14 fb bb f2  |X+.....K!.......|
-00000300  eb 41 9d 1c 6a 06 d8 38  b9 68 fc 1d 90 ad ff 9c  |.A..j..8.h......|
-00000310  91 c1 4a ff b0 49 59 8a  0b 25 26 eb 28 b1 a5 f8  |..J..IY..%&.(...|
-00000320  0d 8e 14 03 03 00 01 01  16 03 03 00 28 00 00 00  |............(...|
-00000330  00 00 00 00 00 cd a4 31  83 38 57 c8 91 98 4c 6c  |.......1.8W...Ll|
-00000340  76 c7 e1 d8 af f9 47 ee  45 75 f4 51 6c e5 7e da  |v.....G.Eu.Ql.~.|
-00000350  00 0f da 44 49                                    |...DI|
+00000290  5f 58 cb 3b 74 16 03 03  00 88 0f 00 00 84 08 04  |_X.;t...........|
+000002a0  00 80 a6 6b 99 15 5e 97  33 4f a8 0e 59 af 15 22  |...k..^.3O..Y.."|
+000002b0  f3 6e be 02 6e e4 20 d5  81 c0 b4 74 5a e2 20 32  |.n..n. ....tZ. 2|
+000002c0  2b 7f 9c e6 94 32 4d 30  bf 93 86 9b 75 4d f1 9f  |+....2M0....uM..|
+000002d0  e4 48 28 00 27 fa 7c 45  2e fe d7 0b dc 03 c4 6b  |.H(.'.|E.......k|
+000002e0  42 ad a2 32 d7 9d ea d6  52 05 3f ed 87 fd b9 9d  |B..2....R.?.....|
+000002f0  58 fd d6 9f 28 6d 45 07  de 5b 4a 8e f4 4d 19 0b  |X...(mE..[J..M..|
+00000300  cf 4e 64 75 73 ae cd e9  ae f9 af 27 d0 b9 eb 4c  |.Ndus......'...L|
+00000310  98 ad 66 6d 4e bf 2c 39  87 f3 72 3e 4e bc a1 8f  |..fmN.,9..r>N...|
+00000320  a8 1e 14 03 03 00 01 01  16 03 03 00 28 00 00 00  |............(...|
+00000330  00 00 00 00 00 04 3c cc  ae cd 19 52 6b 1e 0e cc  |......<....Rk...|
+00000340  dd a9 ac 2f 2a c6 94 4c  09 f3 ee 2f b5 5a 13 1e  |.../*..L.../.Z..|
+00000350  4f 54 a0 ae c2                                    |OT...|
 >>> Flow 4 (server to client)
-00000000  14 03 03 00 01 01 16 03  03 00 28 7f 1d 85 46 4c  |..........(...FL|
-00000010  7f 93 d7 e3 c1 3f a7 71  69 16 90 9a a6 f8 9a 22  |.....?.qi......"|
-00000020  a5 8b 0e 6d 6a f2 08 7e  40 6d ba 87 74 e4 e6 1d  |...mj..~@m..t...|
-00000030  ba 5e ff                                          |.^.|
+00000000  14 03 03 00 01 01 16 03  03 00 28 6d 44 cb 35 8b  |..........(mD.5.|
+00000010  15 5c f9 f8 1e ae 4f 8c  8c d9 90 9e 6c cf 13 f6  |.\....O.....l...|
+00000020  12 29 f5 f7 d6 ff da e2  48 7d 68 ec ad 1a 6c 39  |.)......H}h...l9|
+00000030  c5 77 6c                                          |.wl|
 >>> Flow 5 (client to server)
-00000000  17 03 03 00 1e 00 00 00  00 00 00 00 01 2a 5a a1  |.............*Z.|
-00000010  d5 31 ba 8b 9d 3f f1 54  e0 53 cf 84 70 3b f5 bf  |.1...?.T.S..p;..|
-00000020  11 3c ad 15 03 03 00 1a  00 00 00 00 00 00 00 02  |.<..............|
-00000030  1b ad 23 3d 37 69 87 9d  b5 60 f1 8a 13 d6 09 ab  |..#=7i...`......|
-00000040  a4 9b                                             |..|
+00000000  17 03 03 00 1e 00 00 00  00 00 00 00 01 2a ce da  |.............*..|
+00000010  11 1c 7d 49 0d aa 44 d4  d6 d4 7f 64 2b 49 47 20  |..}I..D....d+IG |
+00000020  5a 21 bb 15 03 03 00 1a  00 00 00 00 00 00 00 02  |Z!..............|
+00000030  fc 10 75 a7 22 f9 74 1c  3a d2 b2 a8 04 2d 37 5f  |..u.".t.:....-7_|
+00000040  c2 76                                             |.v|
diff --git a/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateOnce b/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateOnce
index 96f7b00..48a99ed 100644
--- a/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateOnce
+++ b/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateOnce
@@ -16,11 +16,11 @@
 000000e0  e5 7d a3 47 cd 62 43 15  28 da ac 5f bb 29 07 30  |.}.G.bC.(.._.).0|
 000000f0  ff f6 84 af c4 cf c2 ed  90 99 5f 58 cb 3b 74     |.........._X.;t|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 59 02 00 00  55 03 03 1c 04 37 7b 4d  |....Y...U....7{M|
-00000010  49 2a 45 1d e8 db 60 7e  7d be 7b 2d ff a2 dc aa  |I*E...`~}.{-....|
-00000020  b7 5e 66 f9 67 bf 58 f7  f1 0a 7b 20 f2 72 71 31  |.^f.g.X...{ .rq1|
-00000030  2a 6e 5e 2b e4 29 ef bc  3a 56 45 26 53 b4 9f 98  |*n^+.)..:VE&S...|
-00000040  fb 07 d5 2f b3 f3 f0 3b  02 1f 00 9b cc a8 00 00  |.../...;........|
+00000000  16 03 03 00 59 02 00 00  55 03 03 f1 d8 72 0c 79  |....Y...U....r.y|
+00000010  e2 ca 92 11 1c 30 cc 45  00 9b ea 3d a3 ed 23 d5  |.....0.E...=..#.|
+00000020  22 f0 da 9c 03 32 7b c3  13 d3 df 20 8f 7a 61 43  |"....2{.... .zaC|
+00000030  cb 72 46 5e c1 39 78 42  32 97 cc 2b 90 2e 53 59  |.rF^.9xB2..+..SY|
+00000040  31 38 ec 7b 2b 8a f3 80  e0 03 f0 0e cc a8 00 00  |18.{+...........|
 00000050  0d ff 01 00 01 00 00 0b  00 04 03 00 01 02 16 03  |................|
 00000060  03 02 59 0b 00 02 55 00  02 52 00 02 4f 30 82 02  |..Y...U..R..O0..|
 00000070  4b 30 82 01 b4 a0 03 02  01 02 02 09 00 e8 f0 9d  |K0..............|
@@ -60,185 +60,185 @@
 00000290  77 8d 0c 1c f1 0f a1 d8  40 83 61 c9 4c 72 2b 9d  |w.......@.a.Lr+.|
 000002a0  ae db 46 06 06 4d f4 c1  b3 3e c0 d1 bd 42 d4 db  |..F..M...>...B..|
 000002b0  fe 3d 13 60 84 5c 21 d3  3b e9 fa e7 16 03 03 00  |.=.`.\!.;.......|
-000002c0  ac 0c 00 00 a8 03 00 1d  20 6f fe 48 78 c0 68 41  |........ o.Hx.hA|
-000002d0  fa 5a 33 f5 9b e0 b2 ae  93 e9 0c 5a 78 60 32 67  |.Z3........Zx`2g|
-000002e0  de cf 17 26 20 88 3a f5  5e 08 04 00 80 58 d9 c5  |...& .:.^....X..|
-000002f0  f0 c3 9e f5 4d a5 20 3e  ed da a2 7d b9 2a 9b 95  |....M. >...}.*..|
-00000300  ec 1c 2a c1 28 22 3e 36  4f 5a fe eb 2a 6a 9e 9e  |..*.(">6OZ..*j..|
-00000310  01 83 31 93 d1 bd 0f 6f  ff 9d e8 4e 7a cb 9d 8f  |..1....o...Nz...|
-00000320  63 92 bc f2 0e 37 1f e0  8a 1e 22 2c eb 53 e8 25  |c....7....",.S.%|
-00000330  15 20 97 1f 0c 75 5a 9d  6a aa e6 a6 86 d9 5d 4d  |. ...uZ.j.....]M|
-00000340  b8 58 d1 03 63 d4 8d cb  0b 4d 97 2e eb 50 13 39  |.X..c....M...P.9|
-00000350  07 5c d9 a8 bf cf eb 05  47 0a 48 30 5b 71 c0 ea  |.\......G.H0[q..|
-00000360  cb 4f 22 27 1a d2 58 02  ca 07 bd 03 f1 16 03 03  |.O"'..X.........|
+000002c0  ac 0c 00 00 a8 03 00 1d  20 96 cb 1d cd f6 2f ff  |........ ...../.|
+000002d0  fe 32 ef d6 18 a2 6b 57  66 cd 3d 50 42 56 dc a4  |.2....kWf.=PBV..|
+000002e0  5f fe e4 91 ce d1 17 34  3c 08 04 00 80 b1 47 de  |_......4<.....G.|
+000002f0  b3 19 b0 fd 02 35 eb 3c  a1 04 d3 6b 53 84 20 c7  |.....5.<...kS. .|
+00000300  08 4b 96 12 23 ae bf ca  a8 83 1d 90 16 ae d3 7c  |.K..#..........||
+00000310  fa 1b b4 f0 bb bb 4e 3f  70 13 2f 40 6c d4 76 61  |......N?p./@l.va|
+00000320  5b 23 85 3f e7 37 ef e1  55 47 8d 01 e1 24 22 7f  |[#.?.7..UG...$".|
+00000330  a4 2c 6f 97 47 5f d6 69  bf b4 db 4b b8 a1 ad 66  |.,o.G_.i...K...f|
+00000340  5f d5 5d b6 06 ac 93 ed  d7 06 cb b5 a4 d4 4b a7  |_.]...........K.|
+00000350  7b de f7 73 60 af ad 23  f4 6a f1 bf 2a ee 5b 4e  |{..s`..#.j..*.[N|
+00000360  83 94 d7 95 3b e5 5e a5  3d 1a 0a 7a 9e 16 03 03  |....;.^.=..z....|
 00000370  00 04 0e 00 00 00                                 |......|
 >>> Flow 3 (client to server)
 00000000  16 03 03 00 25 10 00 00  21 20 2f e5 7d a3 47 cd  |....%...! /.}.G.|
 00000010  62 43 15 28 da ac 5f bb  29 07 30 ff f6 84 af c4  |bC.(.._.).0.....|
 00000020  cf c2 ed 90 99 5f 58 cb  3b 74 14 03 03 00 01 01  |....._X.;t......|
-00000030  16 03 03 00 20 f9 b0 26  8b 30 54 a5 80 7e 5b 47  |.... ..&.0T..~[G|
-00000040  2e b1 28 07 ef 12 93 33  5a 8d 5e de 8d 56 d5 c3  |..(....3Z.^..V..|
-00000050  3c 05 a8 f1 5e                                    |<...^|
+00000030  16 03 03 00 20 f2 6f 2e  79 5c db 90 b8 2e cf 59  |.... .o.y\.....Y|
+00000040  0a 56 69 86 f1 71 0c ff  a9 7c 0b a0 e7 c9 8d 17  |.Vi..q...|......|
+00000050  65 ad a5 6c 82                                    |e..l.|
 >>> Flow 4 (server to client)
-00000000  14 03 03 00 01 01 16 03  03 00 20 c1 77 25 ba a7  |.......... .w%..|
-00000010  08 ba 0d 1e 8b e2 eb 11  77 d8 c7 e2 20 e0 60 da  |........w... .`.|
-00000020  97 f5 42 f4 12 bb 94 35  b7 ee c8                 |..B....5...|
+00000000  14 03 03 00 01 01 16 03  03 00 20 d5 90 08 84 71  |.......... ....q|
+00000010  bc 09 48 be ad 59 11 76  c6 39 bb 94 8c 60 80 29  |..H..Y.v.9...`.)|
+00000020  44 1a 0d fe 5c 00 4c bc  47 3c 1e                 |D...\.L.G<.|
 >>> Flow 5 (client to server)
-00000000  17 03 03 00 16 6f f6 5b  37 2f 21 25 ae e9 30 be  |.....o.[7/!%..0.|
-00000010  ce b4 66 f7 fd 9a 5a 02  9d 43 e8                 |..f...Z..C.|
+00000000  17 03 03 00 16 42 cd 1c  e5 91 35 b0 c1 4d df e4  |.....B....5..M..|
+00000010  b0 ca f3 8a 7a 41 85 31  7a 7d 59                 |....zA.1z}Y|
 >>> Flow 6 (server to client)
-00000000  16 03 03 00 14 8f be 53  56 e9 19 ec 85 79 d0 cc  |.......SV....y..|
-00000010  8d ab 43 3c b2 7b a3 55  57                       |..C<.{.UW|
+00000000  16 03 03 00 14 3b 0f 40  64 9f ff 8f b9 85 18 af  |.....;.@d.......|
+00000010  b4 bc e7 33 8a 9b 03 de  ed                       |...3.....|
 >>> Flow 7 (client to server)
-00000000  16 03 03 01 16 ab 36 6a  25 3d 93 3c 71 b6 5b 91  |......6j%=.<q.[.|
-00000010  8d 58 37 42 24 7f d9 16  71 64 64 49 f1 4b ff d8  |.X7B$...qddI.K..|
-00000020  47 8f 2a 27 93 d2 63 a1  7e bf 76 94 b5 e5 a6 d4  |G.*'..c.~.v.....|
-00000030  79 97 60 76 18 a5 4a 47  85 89 49 01 48 5c ff 73  |y.`v..JG..I.H\.s|
-00000040  99 b4 44 9d f6 53 44 2e  b8 21 75 b5 d6 98 c7 33  |..D..SD..!u....3|
-00000050  7c 1a 25 7f 8d 79 db 7f  05 8c 9e e4 d8 9c 4b 57  ||.%..y........KW|
-00000060  45 70 42 ba 2c c1 45 f4  69 04 5a 87 ab f7 e4 d1  |EpB.,.E.i.Z.....|
-00000070  6a ed e9 cf ab 79 1c bc  dc c6 2d 72 1b 94 51 17  |j....y....-r..Q.|
-00000080  2f 2a 1a f2 0f 85 66 97  15 81 4b 99 e7 75 ec 19  |/*....f...K..u..|
-00000090  61 20 a7 92 f3 14 e1 a0  f8 a0 ad ba 9f ef d5 5d  |a .............]|
-000000a0  f1 92 ff 50 1b 66 9f e0  39 c4 58 a5 59 c5 eb 46  |...P.f..9.X.Y..F|
-000000b0  4b f5 53 6d 04 dd bc b4  71 d8 2b cf 4d 73 67 74  |K.Sm....q.+.Msgt|
-000000c0  c1 8d ab d2 53 0a 91 ce  90 03 ed e4 d8 23 1a ff  |....S........#..|
-000000d0  2c 70 1a 42 bc fb 80 5b  a8 97 aa 9b 6e 27 2c ec  |,p.B...[....n',.|
-000000e0  78 30 5c 9f 6f 5d 65 dd  f3 e2 41 9c ad 8d 12 58  |x0\.o]e...A....X|
-000000f0  39 ef ed cf 0b 73 28 c7  f4 37 f3 a2 16 39 18 c5  |9....s(..7...9..|
-00000100  db b8 b6 db b9 b2 56 f2  9b 60 38 9f 82 60 45 06  |......V..`8..`E.|
-00000110  3e 6b cf 9c 2f 1e 5d 0b  ff 80 cb                 |>k../.]....|
+00000000  16 03 03 01 16 17 a7 61  5b 22 97 6e eb dd 43 84  |.......a[".n..C.|
+00000010  b9 ac 15 c2 76 7d 1f c0  e3 46 11 af c0 59 7d cc  |....v}...F...Y}.|
+00000020  d4 5d 02 90 28 bb b3 7c  85 76 46 34 7c bf 2b bf  |.]..(..|.vF4|.+.|
+00000030  c4 e9 e1 46 b0 15 7e af  c1 03 4a 17 b3 7a 03 cd  |...F..~...J..z..|
+00000040  e0 90 b1 1b 59 ac 1f 33  b0 41 c3 47 ee 58 af 5b  |....Y..3.A.G.X.[|
+00000050  5b c4 7a 92 02 e2 34 8d  cd 70 20 c4 59 5e 25 f2  |[.z...4..p .Y^%.|
+00000060  28 b1 f2 a5 e0 c4 f9 d0  ae cc 2b 1e ea d4 5a fe  |(.........+...Z.|
+00000070  62 97 bc d7 57 94 5c b8  ce 4c 62 1a e5 29 02 1e  |b...W.\..Lb..)..|
+00000080  0e 68 1d 8a 17 f9 47 55  ac 65 cf 13 88 d3 95 0d  |.h....GU.e......|
+00000090  d7 e0 d8 03 f8 f6 6f 9c  5b de 5c 80 c3 34 7e 82  |......o.[.\..4~.|
+000000a0  5c 8b c4 a3 99 c8 1e f0  f2 e5 6e 73 40 62 31 8e  |\.........ns@b1.|
+000000b0  3b 08 62 ba a8 b9 18 c4  84 a0 b4 9f 68 81 2f ae  |;.b.........h./.|
+000000c0  8d 7c cc 54 ba 4a ec 26  a5 8a 9b a7 bd 36 17 2c  |.|.T.J.&.....6.,|
+000000d0  52 69 4c 57 81 64 e6 34  88 27 81 d2 32 eb d2 8d  |RiLW.d.4.'..2...|
+000000e0  4d 8d c1 8b 14 b3 07 19  63 f8 d6 4a 9a 7d 3f c1  |M.......c..J.}?.|
+000000f0  af 18 72 f7 2d c8 7e 82  52 28 51 80 59 0c 9b 9f  |..r.-.~.R(Q.Y...|
+00000100  ac 40 69 25 0e 6d d7 4a  72 b5 18 f8 78 b9 52 c3  |.@i%.m.Jr...x.R.|
+00000110  d6 32 6c 7d 29 70 a8 33  18 d0 4b                 |.2l})p.3..K|
 >>> Flow 8 (server to client)
-00000000  16 03 03 00 81 21 a2 14  95 1e 02 74 1b aa c5 ec  |.....!.....t....|
-00000010  3f 9f 1a 88 67 00 8b 16  68 54 52 bb df f7 4c 75  |?...g...hTR...Lu|
-00000020  57 49 e3 00 1e b2 6f 61  67 eb ac 1e 77 31 bc e1  |WI....oag...w1..|
-00000030  66 a9 db 13 8b 43 d3 73  f9 57 97 1d 75 bd fc 78  |f....C.s.W..u..x|
-00000040  1b 0c 92 a4 66 95 d6 89  3d 86 63 a6 e8 15 5d d2  |....f...=.c...].|
-00000050  65 4c b5 2b f7 3d be 81  17 e6 23 64 65 26 68 b8  |eL.+.=....#de&h.|
-00000060  14 6b 68 24 78 19 84 a4  a1 82 d2 b6 6f d1 58 68  |.kh$x.......o.Xh|
-00000070  43 db 14 90 af 15 3c 8d  0c 5d b3 26 f3 14 7f cf  |C.....<..].&....|
-00000080  09 05 2a 2a 5d 21 16 03  03 02 69 f3 b0 da 24 57  |..**]!....i...$W|
-00000090  c9 6b 11 b6 67 20 2c 5f  64 53 ca a5 71 26 95 89  |.k..g ,_dS..q&..|
-000000a0  47 be 7d 27 dd a9 6e 8e  af 45 de 5d bd 37 8c 2b  |G.}'..n..E.].7.+|
-000000b0  b0 d8 d0 49 7e f1 cf 1c  47 a9 0f 5f fa 99 56 46  |...I~...G.._..VF|
-000000c0  a2 41 f7 f6 08 5f 97 6b  14 64 01 aa b2 f6 55 34  |.A..._.k.d....U4|
-000000d0  25 76 f3 ef 29 a3 cc 99  f5 06 ac 30 d1 00 db 36  |%v..)......0...6|
-000000e0  9b 41 c0 45 2e d4 bc b9  02 87 0f 0a 0e 2d 9d 56  |.A.E.........-.V|
-000000f0  df b8 94 8e 54 a8 6d 0a  8d b8 71 3c c0 76 0a 94  |....T.m...q<.v..|
-00000100  6d dc c6 5b 24 7e c5 48  25 67 15 44 2b 48 d0 cd  |m..[$~.H%g.D+H..|
-00000110  82 d8 c8 5e 0c 20 32 95  a9 f8 d5 31 cd f7 44 da  |...^. 2....1..D.|
-00000120  05 c4 cb e9 04 48 72 ac  ca 7b 26 e6 76 d2 01 18  |.....Hr..{&.v...|
-00000130  c0 34 88 29 7c 8c dc 35  e3 25 c9 11 f0 2b 1f 44  |.4.)|..5.%...+.D|
-00000140  d8 7d ea 1d 6a 57 b2 2c  52 8e 89 50 e3 e4 1c 51  |.}..jW.,R..P...Q|
-00000150  91 0c 6d fd 8d ad 91 77  b1 34 02 83 96 7e 39 5f  |..m....w.4...~9_|
-00000160  bc ed b1 05 3b f0 d3 f0  b3 05 54 e8 47 36 32 b1  |....;.....T.G62.|
-00000170  88 c9 31 7e d8 41 12 3b  55 25 b3 bc e3 9f a5 17  |..1~.A.;U%......|
-00000180  a8 45 21 68 e6 12 83 0e  80 13 d5 80 4d 89 0d fb  |.E!h........M...|
-00000190  9f 06 84 35 04 e8 0e bc  8c e7 17 83 7a 0f 68 34  |...5........z.h4|
-000001a0  ee db 10 78 31 85 34 e0  d8 f4 d2 3d fa 1c 18 49  |...x1.4....=...I|
-000001b0  25 c9 b9 53 ee b1 62 ff  13 77 36 8e 59 73 f7 9b  |%..S..b..w6.Ys..|
-000001c0  5f 4d 01 2d 41 dc 9e 2e  f7 f4 4c f7 27 eb e3 35  |_M.-A.....L.'..5|
-000001d0  91 41 b5 7f 28 eb 04 2c  f6 db 80 aa 3d 4e ac 2b  |.A..(..,....=N.+|
-000001e0  9d 95 c8 97 cf 35 f5 49  0d c7 b1 4f bf 41 eb 4a  |.....5.I...O.A.J|
-000001f0  9a a6 56 b8 8a 75 53 17  dc d4 ad ab 82 25 e8 0a  |..V..uS......%..|
-00000200  ae 8b c0 a3 8e 67 4b d1  96 04 45 1d c8 12 32 3f  |.....gK...E...2?|
-00000210  7e 4c 48 95 9f 24 8c 01  cf c3 78 10 d6 12 63 37  |~LH..$....x...c7|
-00000220  38 58 d3 31 97 25 9d 43  29 29 86 fb 9a 47 b5 c1  |8X.1.%.C))...G..|
-00000230  81 dc ab 4b be 57 bf 9f  0c 0b 28 fc 13 15 4e 2d  |...K.W....(...N-|
-00000240  58 97 78 3e 7f eb bf a1  cf a1 8d ab fe 3a 47 77  |X.x>.........:Gw|
-00000250  c1 fb b7 b8 82 42 37 95  60 20 be 91 26 ca 2c 48  |.....B7.` ..&.,H|
-00000260  44 57 6c 75 24 22 93 32  cf 83 f8 0c 75 b5 4a f1  |DWlu$".2....u.J.|
-00000270  88 d0 8e 1d 4e c7 93 1b  ba ea 14 04 38 f6 7a c2  |....N.......8.z.|
-00000280  d2 4b 7c 9c 1b 8b 31 6c  d8 09 88 6a 6d a1 61 d6  |.K|...1l...jm.a.|
-00000290  ee 80 ea 76 c0 d9 5a 49  31 3b dd 0f b5 5a a1 29  |...v..ZI1;...Z.)|
-000002a0  d4 ff db 68 48 96 26 e7  a7 82 10 e9 6e 5c c4 66  |...hH.&.....n\.f|
-000002b0  d5 e0 87 c3 66 d8 7c 4e  bf a5 31 0f fa 6e f6 21  |....f.|N..1..n.!|
-000002c0  4d fe ea f0 36 91 9e 18  81 c0 21 4f 77 eb 65 c0  |M...6.....!Ow.e.|
-000002d0  fe 84 45 22 dd 28 03 eb  e5 ce 15 62 e1 b8 9f 0e  |..E".(.....b....|
-000002e0  aa 9d bc 5c 38 41 01 74  17 d0 92 a5 80 e4 4b 58  |...\8A.t......KX|
-000002f0  42 bb 42 5d 16 03 03 00  bc 09 fb 78 c1 36 2e 27  |B.B].......x.6.'|
-00000300  b2 44 17 1a a8 2b f5 cd  98 78 a4 c1 1c f2 e7 53  |.D...+...x.....S|
-00000310  92 ef c1 88 83 78 37 23  08 f5 7f 5d 9f d1 c4 32  |.....x7#...]...2|
-00000320  df 01 c6 9c 3e a8 11 31  f4 77 69 94 d7 67 bc 62  |....>..1.wi..g.b|
-00000330  8e 18 57 0a cd d8 ba db  cd 2b e8 f9 37 77 16 13  |..W......+..7w..|
-00000340  be 18 53 2a 50 0b 0a d7  9a f0 7d 10 d3 13 bb 82  |..S*P.....}.....|
-00000350  36 5c aa d1 17 ad 83 69  47 7f 81 5c 36 53 81 e3  |6\.....iG..\6S..|
-00000360  1d 65 9f ac b2 3e 76 77  5a 6a 39 e5 df 92 55 e6  |.e...>vwZj9...U.|
-00000370  90 96 9c b9 54 ac 09 17  ce f5 43 9f 3e 1e 3a b6  |....T.....C.>.:.|
-00000380  cb 61 da 1a 3e e0 b4 51  30 3e 22 09 0b 05 a7 6e  |.a..>..Q0>"....n|
-00000390  5a df 82 d2 ab b9 d8 d2  37 a7 d7 b5 7f a9 ea 49  |Z.......7......I|
-000003a0  2f 64 57 33 5a 19 7f a3  2f 6a 7e 40 18 19 4a 61  |/dW3Z.../j~@..Ja|
-000003b0  05 92 35 8b 50 16 03 03  00 4a 50 1e e6 f4 47 dd  |..5.P....JP...G.|
-000003c0  fb 02 b4 22 71 e7 1e b1  51 28 9f 2d 40 64 2c 85  |..."q...Q(.-@d,.|
-000003d0  47 33 69 3e b0 e4 c7 eb  a6 31 13 76 45 39 e7 50  |G3i>.....1.vE9.P|
-000003e0  94 86 2e dd e1 58 f2 83  60 86 07 94 29 ce 69 12  |.....X..`...).i.|
-000003f0  0f 89 e3 89 2f 00 50 2b  56 ed 1d fe 25 55 9f 33  |..../.P+V...%U.3|
-00000400  3d 30 93 3c 16 03 03 00  14 0e 3f df b0 79 70 a7  |=0.<......?..yp.|
-00000410  08 bb 01 ff 08 44 69 65  49 81 9f e5 3a           |.....DieI...:|
+00000000  16 03 03 00 81 8b e2 a1  f5 15 55 13 f6 f2 fa 95  |..........U.....|
+00000010  3b bb 0f 3d 3e 9b 3c b1  60 cb 69 7f 63 62 2d 9b  |;..=>.<.`.i.cb-.|
+00000020  20 47 3a 7d 5e d0 98 38  49 c3 94 f8 1d 56 1d 69  | G:}^..8I....V.i|
+00000030  27 65 bc ca 63 22 65 61  60 67 49 35 f0 eb 83 1b  |'e..c"ea`gI5....|
+00000040  44 c4 f0 91 64 5a 81 b5  06 4b 3e 3a ef 3b 5c b0  |D...dZ...K>:.;\.|
+00000050  81 b4 36 df f3 0d a3 0a  1c 40 03 fa 81 48 42 70  |..6......@...HBp|
+00000060  bf 4c b3 6b 67 19 7b 83  05 a1 31 a3 1c 79 49 2c  |.L.kg.{...1..yI,|
+00000070  1f 58 bc 7d 98 4e 5b 64  44 3d 3c 43 fb 77 c7 7c  |.X.}.N[dD=<C.w.||
+00000080  65 aa 0a 3d 49 a1 16 03  03 02 69 de 2a 3b 96 9f  |e..=I.....i.*;..|
+00000090  21 b4 5d de 2b b6 c5 03  ec ab 79 35 eb da 8b 1f  |!.].+.....y5....|
+000000a0  f8 c4 58 7c d1 af 3d 6e  f9 73 63 2b dc 2e a5 4f  |..X|..=n.sc+...O|
+000000b0  88 93 24 5e d7 2a ab 0a  a5 0f bf 5d 2d 74 9c 19  |..$^.*.....]-t..|
+000000c0  3a 97 88 f7 17 25 ad 6a  81 3a f1 e3 bb 4c 7a b6  |:....%.j.:...Lz.|
+000000d0  4c b0 f3 25 e5 66 06 14  b0 a3 3d 3a 25 36 4c e1  |L..%.f....=:%6L.|
+000000e0  62 25 fc ac 22 7b 25 0d  f9 5f 5b a6 1b 7f b9 14  |b%.."{%.._[.....|
+000000f0  4d 71 81 6b de 9d 6a 40  80 ba 88 20 60 c6 e2 50  |Mq.k..j@... `..P|
+00000100  c6 a6 3d 01 ee 04 dc ad  3c 95 a7 ef a7 dd 3a 6c  |..=.....<.....:l|
+00000110  0f f2 c2 c2 e0 fc 3c d2  75 88 ad 1a 23 94 2a 69  |......<.u...#.*i|
+00000120  28 66 c2 8a 5c 34 69 da  cc 5d 13 dd 86 fc 66 13  |(f..\4i..]....f.|
+00000130  de c2 c6 86 6d 4a b4 ea  b0 99 61 38 72 1e 7f 36  |....mJ....a8r..6|
+00000140  df 32 4b a7 12 23 8f f3  d1 8d d7 2f d1 65 67 4f  |.2K..#...../.egO|
+00000150  10 07 03 6a b2 87 aa a4  b0 41 c9 20 f4 84 5e b7  |...j.....A. ..^.|
+00000160  5e 4d 47 d4 7f 6c 8d 2e  a5 bb 7d 07 1b 5b e5 50  |^MG..l....}..[.P|
+00000170  5d 27 c0 8b f8 5e a7 a8  ef d7 f3 b0 6d 07 7a 9b  |]'...^......m.z.|
+00000180  1d 54 5a 18 c7 4f 6f b8  92 44 16 ec 92 43 1a 1a  |.TZ..Oo..D...C..|
+00000190  a8 d0 a3 40 25 b0 ff 35  9c b7 4c f9 cd 06 59 a6  |...@%..5..L...Y.|
+000001a0  25 ca 4a b7 34 31 0a 23  29 3a 09 8b 7b 05 15 b0  |%.J.41.#):..{...|
+000001b0  67 ae 1b 8b f4 67 16 e0  c1 67 a1 58 09 c9 10 f0  |g....g...g.X....|
+000001c0  f0 62 02 52 14 6d 02 3d  e6 ab 16 fb 7f 38 69 7c  |.b.R.m.=.....8i||
+000001d0  d1 f3 db 69 3c cd 78 28  b2 fa 94 1c a0 2f b7 bb  |...i<.x(...../..|
+000001e0  31 4f f6 56 2a 98 5a d1  bf 5d e4 0d ec 8f 47 42  |1O.V*.Z..]....GB|
+000001f0  62 a6 59 39 77 d8 bd 11  71 64 b4 2b 65 2a 10 5d  |b.Y9w...qd.+e*.]|
+00000200  46 51 bf 8d b6 13 df 61  b8 1e 37 ad fc c0 86 a9  |FQ.....a..7.....|
+00000210  b4 09 2f 33 8e 93 4a 5b  32 f4 f9 7d 01 a8 b8 09  |../3..J[2..}....|
+00000220  8e da 90 8f a7 fb 82 76  fd 6b 7e 93 57 13 e1 99  |.......v.k~.W...|
+00000230  cb b8 12 0a da c2 62 0e  0c 65 53 d4 5b 75 c2 22  |......b..eS.[u."|
+00000240  3f 91 5c e6 c4 12 48 78  c4 6d 2c 1f 45 dc a2 a1  |?.\...Hx.m,.E...|
+00000250  73 cf 69 97 8b 64 42 d5  22 06 de 04 4b 8c f5 5f  |s.i..dB."...K.._|
+00000260  d6 97 1a 73 4f 4e d2 55  e1 8d 8c 21 fd 7f 26 1c  |...sON.U...!..&.|
+00000270  53 9f 69 c9 01 11 be 4e  d0 ab 78 56 af bb 0a 0f  |S.i....N..xV....|
+00000280  73 cb c5 d2 07 4a 16 a0  71 9f dd 46 17 0e 86 5e  |s....J..q..F...^|
+00000290  e2 90 34 7d af b1 86 6c  e3 33 cf ff 2f bf ea 8e  |..4}...l.3../...|
+000002a0  62 7e 7f b9 f7 c4 1b 4c  61 b6 8d 6f a9 b4 56 27  |b~.....La..o..V'|
+000002b0  0a 0d fa d7 d9 ce 6a 1a  e3 4e 4d f8 04 c8 74 75  |......j..NM...tu|
+000002c0  07 6f 38 96 c7 04 df a4  e0 6a 08 c5 5b 93 b7 c1  |.o8......j..[...|
+000002d0  fb 4d 4f 01 67 3c 8b 03  93 f7 46 c2 db 2f 41 2d  |.MO.g<....F../A-|
+000002e0  e1 d6 dd 39 d5 0c dc 6a  10 c2 50 fe 34 64 79 9a  |...9...j..P.4dy.|
+000002f0  5e 88 35 89 16 03 03 00  bc d1 42 6c 11 23 45 dd  |^.5.......Bl.#E.|
+00000300  41 9e 81 0a 3d d1 c1 99  6f 91 b5 16 96 e6 d3 eb  |A...=...o.......|
+00000310  9b 8f c3 30 14 7f 19 d5  9a fa ea 9c de 53 23 7c  |...0.........S#||
+00000320  d8 49 d2 c5 e7 7c ff 96  22 0a 57 fc 11 ed b9 ca  |.I...|..".W.....|
+00000330  2e 18 a5 30 7e 3a d2 86  70 de 48 28 83 a1 3b 65  |...0~:..p.H(..;e|
+00000340  67 b9 2e 89 87 92 0e eb  b5 70 1d 36 7b 98 4b 8e  |g........p.6{.K.|
+00000350  12 49 db 85 18 dc e1 f4  51 a9 bb e4 5c ae 56 31  |.I......Q...\.V1|
+00000360  c1 56 84 bb e5 42 ec d1  41 e7 a7 4e 08 d7 5f 1d  |.V...B..A..N.._.|
+00000370  67 9a ed 10 b6 80 ff ea  36 70 ac a0 a9 ec 4a e3  |g.......6p....J.|
+00000380  37 ae bf f3 bd a9 aa 3f  b0 14 f6 0b 05 18 09 dd  |7......?........|
+00000390  29 b4 97 55 88 24 59 ce  5b 42 e2 b5 1f 04 76 f3  |)..U.$Y.[B....v.|
+000003a0  f1 c0 49 7d 47 ef 5e 6c  c3 ed 30 2c a0 a1 df c6  |..I}G.^l..0,....|
+000003b0  12 13 22 8b 65 16 03 03  00 4a 3e 6c f8 63 5b 93  |..".e....J>l.c[.|
+000003c0  f0 c6 3a 58 e0 6c 6b 70  46 d0 be 6f 13 34 7a 30  |..:X.lkpF..o.4z0|
+000003d0  e6 e4 b2 fd 39 ee 79 b1  7e 73 5e 9b 2d d9 3f 4f  |....9.y.~s^.-.?O|
+000003e0  61 d5 53 37 79 57 15 a3  3a 7c b7 02 cc 76 25 1d  |a.S7yW..:|...v%.|
+000003f0  96 8b dd 9e 32 8b 1a 9e  37 b1 1a b8 f2 4f ef 3c  |....2...7....O.<|
+00000400  78 e1 b9 07 16 03 03 00  14 bf da c1 d4 16 fd 48  |x..............H|
+00000410  a9 ad 59 6d 8c dc e1 6c  fd 73 ca 9c 1b           |..Ym...l.s...|
 >>> Flow 9 (client to server)
-00000000  16 03 03 02 69 b8 47 2d  3a 7a e4 d0 2b 45 b2 38  |....i.G-:z..+E.8|
-00000010  1e 6f 8d 3d e1 26 91 92  d7 1f e9 a4 2c d8 30 2c  |.o.=.&......,.0,|
-00000020  ce 68 50 e7 80 77 63 e1  bd c7 c8 1b 6f ca b0 bf  |.hP..wc.....o...|
-00000030  82 1d 75 85 2c 5d b2 f6  9a f2 b6 9b c4 24 54 86  |..u.,].......$T.|
-00000040  b8 fb dc ae 09 25 c4 42  fc 4d f2 18 5b a3 92 31  |.....%.B.M..[..1|
-00000050  8a 78 1f 1a 74 d4 43 0b  24 2f 14 2b 0e 05 3a 8d  |.x..t.C.$/.+..:.|
-00000060  7a 1c 21 2f cd 7b 9d 6c  32 b1 f6 14 fa 9d f5 be  |z.!/.{.l2.......|
-00000070  9c f1 8e 75 b9 27 82 ba  e7 fc 14 39 2a 6f 3e 59  |...u.'.....9*o>Y|
-00000080  d6 bc 6c 3f f1 33 5e fa  bb 07 bc e4 0b 7e 4a 5d  |..l?.3^......~J]|
-00000090  2b e8 9b d5 00 d2 cc 8f  94 01 82 0e bb 28 f9 d2  |+............(..|
-000000a0  1f ee 0c ff 9c 4d 37 5b  23 5b 23 a5 39 fe cd 2b  |.....M7[#[#.9..+|
-000000b0  ef 30 46 b7 c1 0e a3 fc  fd f6 1b d3 78 fb d9 93  |.0F.........x...|
-000000c0  3a 52 fe 91 dc 42 63 85  09 64 63 3a 9d 9f 21 74  |:R...Bc..dc:..!t|
-000000d0  c6 d9 e4 b5 cc ef 94 96  0f c1 d0 45 f6 e6 b9 32  |...........E...2|
-000000e0  01 74 88 24 bb d9 d6 25  23 14 de 25 f4 7e 9c 77  |.t.$...%#..%.~.w|
-000000f0  82 83 7e 59 dc c3 f7 d9  e4 b1 95 e0 bb 6e 66 e4  |..~Y.........nf.|
-00000100  bd cb a2 72 a0 63 d4 39  9f 57 a7 d1 88 7a 59 64  |...r.c.9.W...zYd|
-00000110  38 45 bb fc 5a 02 81 4c  2e e5 e4 1c 7d e9 e8 f0  |8E..Z..L....}...|
-00000120  e1 b7 88 f5 a6 ee d0 b7  e5 2f 9e 15 d5 76 8d f7  |........./...v..|
-00000130  68 0f 7b 6a 48 e7 19 3a  bc ef f5 fc 72 a4 62 ce  |h.{jH..:....r.b.|
-00000140  a6 66 e5 e8 74 03 c0 4d  b4 14 e4 0c 36 fd 99 0b  |.f..t..M....6...|
-00000150  0e 4f b6 5e 4c db dc 51  fe ae e9 07 37 92 6c 35  |.O.^L..Q....7.l5|
-00000160  f7 99 6c b9 36 c2 b9 7c  5e ef 72 c1 1f ba fb 18  |..l.6..|^.r.....|
-00000170  57 24 f2 d4 21 cf 46 bd  71 3d 62 63 ba 1c 0f 8b  |W$..!.F.q=bc....|
-00000180  f4 a6 fc ea 27 de 48 b8  ed e3 6e 4b 30 66 fa 1e  |....'.H...nK0f..|
-00000190  22 7b 49 e2 03 96 8a 6a  3c 6a 1a 62 81 cc 06 dd  |"{I....j<j.b....|
-000001a0  a7 6b dd 3c 1b 39 e3 36  5a 8c ec 22 71 35 af fc  |.k.<.9.6Z.."q5..|
-000001b0  74 11 68 2f bd 9a 61 57  39 1a e7 c5 df 62 45 fc  |t.h/..aW9....bE.|
-000001c0  b5 84 f0 b8 6a 63 6f dd  16 24 74 4d 81 34 3e 4c  |....jco..$tM.4>L|
-000001d0  e7 b9 9f 90 aa 1f 39 13  e2 4b 8c ff b5 13 d1 d2  |......9..K......|
-000001e0  cd ac ce 8c 2b bc b3 b3  fc f7 37 db 61 8f 6b 90  |....+.....7.a.k.|
-000001f0  c2 bc 6e e3 8e fa d9 16  ab 62 c7 3f d7 e1 0b a8  |..n......b.?....|
-00000200  2b 8a 0d b6 2c 90 dc 6e  b4 44 e0 13 32 fb 80 23  |+...,..n.D..2..#|
-00000210  a9 e4 18 ea 8d c7 8a 14  0a 82 8d 3b 21 88 bf bf  |...........;!...|
-00000220  ff 10 3c 08 6b 65 70 4c  b5 88 7d 9c 92 43 15 55  |..<.kepL..}..C.U|
-00000230  18 e9 cf 15 5d 55 3a f0  a1 46 ca d4 9e f3 c0 16  |....]U:..F......|
-00000240  4b ee f6 17 95 e0 af 1e  85 54 62 dd 56 88 6b e1  |K........Tb.V.k.|
-00000250  29 ac f9 4f dc 5c 89 16  19 6b 21 c9 6c c8 1e 1d  |)..O.\...k!.l...|
-00000260  89 7c cc a4 9b 1f c8 ce  67 c6 83 79 6a d6 16 03  |.|......g..yj...|
-00000270  03 00 35 6f 33 7d 96 3c  8d 66 a5 d1 7a 8b bc fa  |..5o3}.<.f..z...|
-00000280  ca f0 89 9d 2b 37 0c f5  aa 14 07 f2 58 be d1 d3  |....+7......X...|
-00000290  ec 73 dd b6 33 e2 df 46  1a d3 ee e8 26 d9 be 2b  |.s..3..F....&..+|
-000002a0  43 25 3b e2 78 72 10 43  16 03 03 00 98 18 03 96  |C%;.xr.C........|
-000002b0  9c eb 31 50 72 15 0e 9b  ff c7 6b b0 60 32 08 c6  |..1Pr.....k.`2..|
-000002c0  ef 70 f9 0c 22 4a a2 0f  77 31 b3 ea d0 12 65 af  |.p.."J..w1....e.|
-000002d0  c9 28 0f f9 5b b7 f3 75  9c 5a 6e df a1 6a e6 d5  |.(..[..u.Zn..j..|
-000002e0  82 0b 18 05 94 aa dd 93  e5 1d 60 06 47 f5 3e b1  |..........`.G.>.|
-000002f0  d5 e8 e7 b7 9f 43 bf 4b  8a 5e 48 3b f1 42 f6 c0  |.....C.K.^H;.B..|
-00000300  c3 65 86 e2 bc 7a 75 1d  93 cf 7f 3d 11 d3 85 c3  |.e...zu....=....|
-00000310  c3 90 90 0b 77 e1 d7 64  da 71 3c 55 de 7c b9 71  |....w..d.q<U.|.q|
-00000320  ea d9 7a ae a6 dd 7e e0  a4 2e 88 89 79 2c 40 dc  |..z...~.....y,@.|
-00000330  dd 95 b0 04 6a 76 90 70  2b c7 42 b0 2e 04 79 0c  |....jv.p+.B...y.|
-00000340  4e cb ca f0 81 14 03 03  00 11 29 9f c8 82 93 26  |N.........)....&|
-00000350  07 ce a1 23 50 1a 75 38  36 e0 92 16 03 03 00 20  |...#P.u86...... |
-00000360  75 41 82 00 9b 89 29 9b  59 2f 45 01 3e a9 ae c6  |uA....).Y/E.>...|
-00000370  f8 7e fd 4d bd 3b 0e bc  9b 74 27 09 33 c3 27 2a  |.~.M.;...t'.3.'*|
+00000000  16 03 03 02 69 11 1e 53  9b b7 57 6d ea 89 bb 37  |....i..S..Wm...7|
+00000010  1b c6 01 bd 27 db fa 17  cc 5d 20 be ee 5b a9 64  |....'....] ..[.d|
+00000020  48 4e 4a 4c 82 65 8e 3d  42 d6 ce 5c a8 50 d4 fa  |HNJL.e.=B..\.P..|
+00000030  0f 02 b2 19 90 b5 4e ae  6c e9 d6 b7 b8 64 ca 0e  |......N.l....d..|
+00000040  09 2d a9 7b ab 0f b8 83  97 b6 e0 eb bf 03 5a 1c  |.-.{..........Z.|
+00000050  e7 16 31 67 30 46 60 26  df 19 cf 5f fa 40 36 43  |..1g0F`&..._.@6C|
+00000060  91 d5 7c 2f 5f 29 74 03  e0 90 cd 55 25 e5 1e fe  |..|/_)t....U%...|
+00000070  6b 13 ec 58 29 b0 f4 a3  b2 8d ba 4e 3b f1 11 d8  |k..X)......N;...|
+00000080  85 49 50 b9 e0 03 89 a1  0f da ce 57 83 aa 4a 8c  |.IP........W..J.|
+00000090  3b 15 d5 10 47 01 22 32  4f 78 87 69 4c bf a6 6e  |;...G."2Ox.iL..n|
+000000a0  d4 e6 a5 1e fa 5b ff b0  38 a5 fa 83 1d 45 c5 18  |.....[..8....E..|
+000000b0  72 65 91 6c 41 d2 21 be  5b 1d e9 f5 19 eb d0 5a  |re.lA.!.[......Z|
+000000c0  7e 0d 81 c9 ca f0 97 9e  cc 9b 5c 77 6b 9c 15 d3  |~.........\wk...|
+000000d0  bd 43 4d 42 e5 f9 82 a9  d6 f2 44 93 ae 74 a3 fd  |.CMB......D..t..|
+000000e0  c5 1f 15 13 a0 ea d2 f3  4c 4c ea 2d fe 3b 6e 7b  |........LL.-.;n{|
+000000f0  f4 11 f7 2e 7d 45 26 a0  d9 29 4e 4d ec 90 e2 3e  |....}E&..)NM...>|
+00000100  51 52 dd 6e e1 b5 77 b1  a2 f5 17 b5 34 7f e8 8f  |QR.n..w.....4...|
+00000110  38 9c d6 1c b5 6c 2d 99  00 a1 41 95 15 c5 e5 bf  |8....l-...A.....|
+00000120  c1 67 fb ea 53 6c a8 85  8c c4 a6 74 e3 dc f7 90  |.g..Sl.....t....|
+00000130  b8 cc 99 39 1a a1 c6 51  db 65 e9 b8 ad 2b 1f 35  |...9...Q.e...+.5|
+00000140  b5 90 ae f7 af c2 d0 a9  92 eb 63 21 24 4f 5e 62  |..........c!$O^b|
+00000150  ba 69 ce 1a c8 41 79 db  c0 6c ef bc cf 19 4a 2c  |.i...Ay..l....J,|
+00000160  e0 66 6e 72 97 2d 75 e5  ee 14 82 e8 26 98 fe c4  |.fnr.-u.....&...|
+00000170  8a 17 c4 fb 48 2a d7 7e  d9 3e 5b f9 d4 7d 0e da  |....H*.~.>[..}..|
+00000180  56 44 5e 33 9d 5f 97 ab  d1 60 a8 ee 3d 16 6a 2a  |VD^3._...`..=.j*|
+00000190  33 b1 7d e2 e6 86 cd 88  ac e1 48 49 4e 19 a2 b0  |3.}.......HIN...|
+000001a0  16 53 ec ff b8 a4 f7 35  2d a7 7a 04 86 66 42 52  |.S.....5-.z..fBR|
+000001b0  51 3d 21 62 c5 35 9c e5  cb f9 bf 7b d1 12 b0 18  |Q=!b.5.....{....|
+000001c0  7b 6f 88 d9 ef d2 1a 45  3e 51 ac 3e c8 87 8c 47  |{o.....E>Q.>...G|
+000001d0  08 d0 90 b5 66 f6 4e c3  75 74 68 c8 7d 14 3a 2b  |....f.N.uth.}.:+|
+000001e0  83 7d 12 78 37 9e 11 02  3d 63 ba 78 b6 ba 6d 26  |.}.x7...=c.x..m&|
+000001f0  30 b0 bf a9 23 1e 83 aa  3d a8 02 5b 77 5f 2a 95  |0...#...=..[w_*.|
+00000200  d0 b9 c8 22 a3 a9 fe b0  32 99 8a 46 67 10 b3 d9  |..."....2..Fg...|
+00000210  3e 84 02 ec a2 68 7e 69  db 51 99 37 ee 49 66 0b  |>....h~i.Q.7.If.|
+00000220  af e1 cd b0 25 74 dc ce  29 ed 70 1c 3a bb f2 99  |....%t..).p.:...|
+00000230  03 86 6d af 3f 78 4a 86  70 b8 85 15 02 91 be f6  |..m.?xJ.p.......|
+00000240  4f f2 73 98 00 c6 76 20  c2 19 c6 e9 6c d0 e5 09  |O.s...v ....l...|
+00000250  5c 12 c8 1c a1 3d b7 41  18 26 cb ea d0 92 61 53  |\....=.A.&....aS|
+00000260  06 7c f8 5e a8 27 de 76  4e 83 49 2a ab 82 16 03  |.|.^.'.vN.I*....|
+00000270  03 00 35 4f b7 51 7c c8  51 25 a4 58 de 8b 4a e2  |..5O.Q|.Q%.X..J.|
+00000280  97 cc 48 d0 4d be 9b 8a  44 3b 22 43 b9 82 a4 a5  |..H.M...D;"C....|
+00000290  76 38 0b ae 91 d3 20 75  18 50 f3 1b eb 11 fd 86  |v8.... u.P......|
+000002a0  4a 1a f1 e8 2a f8 e0 60  16 03 03 00 98 ae e6 1b  |J...*..`........|
+000002b0  b1 00 f9 14 93 55 be 63  ea 5b 5e d4 18 37 6b 14  |.....U.c.[^..7k.|
+000002c0  5c 8e fb 82 51 e1 57 24  b7 4a 8b 55 74 79 70 55  |\...Q.W$.J.UtypU|
+000002d0  de 33 82 14 0a 39 0d 91  92 9a 11 c0 4a dd 12 49  |.3...9......J..I|
+000002e0  ea 1a 41 df fd f2 4a 79  c3 0a d5 93 5c ea 82 ff  |..A...Jy....\...|
+000002f0  16 4a 20 91 25 34 5d 72  9d ea 0e 40 dd 6d 86 fd  |.J .%4]r...@.m..|
+00000300  e9 d1 d9 db 61 e6 62 17  6b 09 47 c4 a7 32 1c 22  |....a.b.k.G..2."|
+00000310  f6 e4 41 2a 3e 2b d0 c3  92 56 c5 b8 5f 6d 25 44  |..A*>+...V.._m%D|
+00000320  81 e7 1a ed 70 6a a6 94  89 d1 ad 8d d1 c0 df a2  |....pj..........|
+00000330  26 6f 20 0b 0e 51 15 dd  05 86 36 88 72 3f e1 5d  |&o ..Q....6.r?.]|
+00000340  da 9d d3 76 e4 14 03 03  00 11 52 70 cd 84 39 32  |...v......Rp..92|
+00000350  7c c0 58 53 9b 32 00 96  14 b6 57 16 03 03 00 20  ||.XS.2....W.... |
+00000360  98 94 aa 9f 77 71 42 3e  48 e8 74 8e 27 60 54 c2  |....wqB>H.t.'`T.|
+00000370  55 ac 52 99 37 21 f3 1e  30 93 5f 71 06 19 e5 1c  |U.R.7!..0._q....|
 >>> Flow 10 (server to client)
-00000000  14 03 03 00 11 3d 29 da  dc b6 5a 09 66 34 6e 00  |.....=)...Z.f4n.|
-00000010  65 8c 29 d2 18 bd 16 03  03 00 20 63 55 d1 84 7d  |e.)....... cU..}|
-00000020  3e cc 2d f5 d3 48 c2 5c  72 d8 6b cf 69 b4 ed 5f  |>.-..H.\r.k.i.._|
-00000030  07 96 53 13 1e 53 59 18  c1 bb c7 17 03 03 00 19  |..S..SY.........|
-00000040  30 5b 6d d2 26 db ef c1  a9 00 e6 ce 87 86 9b 71  |0[m.&..........q|
-00000050  dd fb aa 79 aa b6 39 1e  70                       |...y..9.p|
+00000000  14 03 03 00 11 45 8e f9  74 04 d0 44 c6 94 80 60  |.....E..t..D...`|
+00000010  c1 50 7d b2 64 76 16 03  03 00 20 d5 65 8a b9 26  |.P}.dv.... .e..&|
+00000020  54 70 26 de c6 8a 8f 61  a3 b1 9e 8b 49 40 f7 24  |Tp&....a....I@.$|
+00000030  4f 75 e0 94 e6 e7 68 51  38 8a 37 17 03 03 00 19  |Ou....hQ8.7.....|
+00000040  42 7e 5a e2 46 7b ba 7d  0d 07 20 2a c0 56 fe aa  |B~Z.F{.}.. *.V..|
+00000050  01 eb ca d2 29 1d ff 85  10                       |....)....|
 >>> Flow 11 (client to server)
-00000000  15 03 03 00 12 32 8f cd  ef b8 3e 96 01 07 ca 0b  |.....2....>.....|
-00000010  83 21 83 97 78 25 64                              |.!..x%d|
+00000000  15 03 03 00 12 1d 01 c7  d5 d5 d1 ce 8c 52 15 8f  |.............R..|
+00000010  75 1e 97 fa 38 5c 65                              |u...8\e|
diff --git a/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateTwice b/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateTwice
index 983174f..006e2d7 100644
--- a/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateTwice
+++ b/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateTwice
@@ -16,11 +16,11 @@
 000000e0  e5 7d a3 47 cd 62 43 15  28 da ac 5f bb 29 07 30  |.}.G.bC.(.._.).0|
 000000f0  ff f6 84 af c4 cf c2 ed  90 99 5f 58 cb 3b 74     |.........._X.;t|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 59 02 00 00  55 03 03 34 8b db 6b 9e  |....Y...U..4..k.|
-00000010  68 c3 92 09 72 4f 02 6c  b9 7a ac 74 72 0b 32 01  |h...rO.l.z.tr.2.|
-00000020  f4 86 9e b5 53 db da 96  c2 65 2a 20 8f 89 24 79  |....S....e* ..$y|
-00000030  8a a5 38 7a 52 68 7a a9  cc d0 5a 04 4d ce 87 0e  |..8zRhz...Z.M...|
-00000040  64 48 51 e0 00 cb 60 f0  b4 e9 99 27 cc a8 00 00  |dHQ...`....'....|
+00000000  16 03 03 00 59 02 00 00  55 03 03 47 d0 f5 d9 f0  |....Y...U..G....|
+00000010  59 d1 bf 28 d0 39 36 c0  bc d1 25 fd 5a 63 18 06  |Y..(.96...%.Zc..|
+00000020  1e 8a 5c a6 6f d0 f9 b4  02 23 e1 20 df a0 2a 74  |..\.o....#. ..*t|
+00000030  1a 52 8b d9 90 01 c2 86  69 12 b8 13 58 aa 59 b0  |.R......i...X.Y.|
+00000040  66 79 ff 01 9b 9a 72 1c  a6 83 e6 91 cc a8 00 00  |fy....r.........|
 00000050  0d ff 01 00 01 00 00 0b  00 04 03 00 01 02 16 03  |................|
 00000060  03 02 59 0b 00 02 55 00  02 52 00 02 4f 30 82 02  |..Y...U..R..O0..|
 00000070  4b 30 82 01 b4 a0 03 02  01 02 02 09 00 e8 f0 9d  |K0..............|
@@ -60,284 +60,284 @@
 00000290  77 8d 0c 1c f1 0f a1 d8  40 83 61 c9 4c 72 2b 9d  |w.......@.a.Lr+.|
 000002a0  ae db 46 06 06 4d f4 c1  b3 3e c0 d1 bd 42 d4 db  |..F..M...>...B..|
 000002b0  fe 3d 13 60 84 5c 21 d3  3b e9 fa e7 16 03 03 00  |.=.`.\!.;.......|
-000002c0  ac 0c 00 00 a8 03 00 1d  20 63 06 67 5c 4e da 3f  |........ c.g\N.?|
-000002d0  0a 02 78 46 92 fe 8f ed  41 ac 1a d5 04 e6 ca 4a  |..xF....A......J|
-000002e0  7e 9c d0 32 e8 ee f3 9c  5d 08 04 00 80 c0 51 ba  |~..2....].....Q.|
-000002f0  71 28 00 53 c6 40 63 20  d4 bd 52 60 d2 f6 e2 57  |q(.S.@c ..R`...W|
-00000300  ba 6f a8 bf 42 2a 11 b5  9a eb 9f b6 53 77 87 72  |.o..B*......Sw.r|
-00000310  ea 7d bf f8 f4 cf 1d 76  6c 03 75 9d df 88 b1 13  |.}.....vl.u.....|
-00000320  66 5c 43 41 1e 97 52 32  86 d0 22 3c f6 ca 90 a5  |f\CA..R2.."<....|
-00000330  ba cf 75 94 1f 22 93 c0  0c c9 82 a5 eb d2 07 85  |..u.."..........|
-00000340  a0 39 9e 5d fa 88 1f 62  25 09 c3 97 c1 1d 4e a2  |.9.]...b%.....N.|
-00000350  fe 98 96 b8 c0 eb b9 18  07 2d e1 cf 9b fd 25 ba  |.........-....%.|
-00000360  93 fb 73 e5 7e 36 27 b3  11 00 58 95 f8 16 03 03  |..s.~6'...X.....|
+000002c0  ac 0c 00 00 a8 03 00 1d  20 20 97 bd 85 2f cb 85  |........  .../..|
+000002d0  be a8 9c e3 ae 6b 23 a5  5b 18 65 5c f5 cc 24 2b  |.....k#.[.e\..$+|
+000002e0  34 2c 5f c8 4d e9 86 35  0b 08 04 00 80 d2 b6 ee  |4,_.M..5........|
+000002f0  86 76 aa 1d 9c 1c ee ef  0e 59 63 1d ec f1 cf a1  |.v.......Yc.....|
+00000300  f3 5b 6d da 99 9c 40 07  bf 28 ad 72 cd 80 6c 9d  |.[m...@..(.r..l.|
+00000310  bf a2 20 33 2d d0 67 ef  90 28 88 2b d0 8e c6 9d  |.. 3-.g..(.+....|
+00000320  87 7a 18 8f 80 ce 25 92  13 8d ef 38 0a 14 f9 67  |.z....%....8...g|
+00000330  88 94 ef af 97 d2 21 90  9e 24 2f af 1e bb fa 10  |......!..$/.....|
+00000340  4c a7 9f f5 27 63 e6 d8  1a 86 53 c6 3c 15 a8 6c  |L...'c....S.<..l|
+00000350  b9 bc 8f c4 38 1a 4b 34  36 ec af b2 1e d0 bf 58  |....8.K46......X|
+00000360  74 36 ad fb e4 f0 fd 9d  6d 01 cf 51 6c 16 03 03  |t6......m..Ql...|
 00000370  00 04 0e 00 00 00                                 |......|
 >>> Flow 3 (client to server)
 00000000  16 03 03 00 25 10 00 00  21 20 2f e5 7d a3 47 cd  |....%...! /.}.G.|
 00000010  62 43 15 28 da ac 5f bb  29 07 30 ff f6 84 af c4  |bC.(.._.).0.....|
 00000020  cf c2 ed 90 99 5f 58 cb  3b 74 14 03 03 00 01 01  |....._X.;t......|
-00000030  16 03 03 00 20 02 50 f6  74 83 31 96 36 c1 22 99  |.... .P.t.1.6.".|
-00000040  1d d7 99 b2 8c 2b 04 3a  bd 3e 19 e5 ef 71 dc 72  |.....+.:.>...q.r|
-00000050  b2 0d c8 d1 3f                                    |....?|
+00000030  16 03 03 00 20 e8 d5 df  da 49 9a 94 10 30 90 81  |.... ....I...0..|
+00000040  c6 19 54 d4 0d e2 0d e0  d9 a3 c0 21 7f a6 d1 cc  |..T........!....|
+00000050  ea 75 2e 17 01                                    |.u...|
 >>> Flow 4 (server to client)
-00000000  14 03 03 00 01 01 16 03  03 00 20 9b a3 02 3e 55  |.......... ...>U|
-00000010  4a e6 4c 7f 9a a6 a2 65  bd 74 ff ad c5 ce 43 21  |J.L....e.t....C!|
-00000020  d3 b1 d1 89 0c 15 7d 7d  a7 d8 4c                 |......}}..L|
+00000000  14 03 03 00 01 01 16 03  03 00 20 f3 92 03 fb 7b  |.......... ....{|
+00000010  0f 32 0b 5b dd 9e eb c3  26 2c 92 4d 58 35 a8 96  |.2.[....&,.MX5..|
+00000020  74 d6 d8 0f 61 b2 7d b6  8d ec e6                 |t...a.}....|
 >>> Flow 5 (client to server)
-00000000  17 03 03 00 16 4c 5e 0a  69 e1 e8 fc 52 f0 3d ea  |.....L^.i...R.=.|
-00000010  33 f5 02 6b 47 49 cd a5  b5 94 4e                 |3..kGI....N|
+00000000  17 03 03 00 16 ab 69 44  d0 fe 95 93 ae f9 1b d7  |......iD........|
+00000010  33 6c 59 a5 41 cc d2 1b  ca 2c 63                 |3lY.A....,c|
 >>> Flow 6 (server to client)
-00000000  16 03 03 00 14 6a 8d 46  e1 33 c6 63 9d 27 3e e8  |.....j.F.3.c.'>.|
-00000010  7f 31 74 7f 4f 60 b3 f7  aa                       |.1t.O`...|
+00000000  16 03 03 00 14 99 96 92  c4 82 c8 27 77 a6 f4 ca  |...........'w...|
+00000010  e5 5b ff 78 bc 54 b6 d7  cd                       |.[.x.T...|
 >>> Flow 7 (client to server)
-00000000  16 03 03 01 16 6f 4d 64  ff 20 fa 1c 19 26 bc 99  |.....oMd. ...&..|
-00000010  ec 09 be e7 6d 88 73 1e  4f c6 74 35 f7 5c b3 e5  |....m.s.O.t5.\..|
-00000020  f6 d1 2a 90 7f c3 34 dc  83 6b a9 f1 32 01 a1 84  |..*...4..k..2...|
-00000030  0c 4c 06 db 88 d4 19 31  d2 46 1f 2c 3d 13 75 5b  |.L.....1.F.,=.u[|
-00000040  f3 e5 d0 b7 a8 4f 2c b2  89 35 78 82 78 b7 f5 c6  |.....O,..5x.x...|
-00000050  ea a2 1d f3 24 9d e2 01  25 e2 96 a1 06 57 5c 50  |....$...%....W\P|
-00000060  d6 5b 56 24 18 6e b4 ce  6a 2e c7 01 65 99 3f 35  |.[V$.n..j...e.?5|
-00000070  c1 07 48 75 ad 0b 1a b3  58 df 83 42 f8 78 eb 92  |..Hu....X..B.x..|
-00000080  e8 70 c9 34 af db e8 d6  b0 c8 37 ac b2 d7 18 ba  |.p.4......7.....|
-00000090  a3 1d 35 09 2e 2f 82 e0  3a 68 fd 7f ba 4d 5c 5c  |..5../..:h...M\\|
-000000a0  6c 6d ac 24 60 bf e0 37  a9 17 8d 6d 8a 69 96 23  |lm.$`..7...m.i.#|
-000000b0  4f c7 53 a0 48 65 58 cc  01 03 df 33 36 5a 8a 7e  |O.S.HeX....36Z.~|
-000000c0  3f 84 33 26 3f 02 66 48  82 22 22 b7 7d 62 7e 56  |?.3&?.fH."".}b~V|
-000000d0  94 df 43 df 08 fc 70 f6  bb 1a dd 19 b1 ea ea a2  |..C...p.........|
-000000e0  6f 36 ab b0 d2 77 e6 c8  f6 70 a6 a6 a3 0d ab c8  |o6...w...p......|
-000000f0  dc d1 9b a2 05 43 44 0c  17 8d 47 86 55 77 56 34  |.....CD...G.UwV4|
-00000100  d7 71 2c 75 9a d4 70 e4  77 5e 1a b7 b1 13 ae 14  |.q,u..p.w^......|
-00000110  d0 99 a0 9e 50 9c 35 94  4d 34 e5                 |....P.5.M4.|
+00000000  16 03 03 01 16 d9 6a 26  33 e5 d8 df 32 d1 f5 84  |......j&3...2...|
+00000010  1f 37 7f 07 6a ae be 20  84 20 dc 28 31 8e 46 32  |.7..j.. . .(1.F2|
+00000020  0b 96 c8 22 28 fb 98 d9  8e 6f 6d 97 66 55 e2 1e  |..."(....om.fU..|
+00000030  b5 b8 e4 9b 52 25 28 c2  72 cb 9e 14 4c ba 58 6c  |....R%(.r...L.Xl|
+00000040  3b 33 da 56 db fe 14 d3  4c b4 ce a9 57 64 ae 4e  |;3.V....L...Wd.N|
+00000050  5f c5 a7 e6 f4 01 51 d7  81 f4 1d ca fa 3f 86 e7  |_.....Q......?..|
+00000060  9f 64 28 6e 3f e4 ef 79  77 20 64 45 ed a2 16 e1  |.d(n?..yw dE....|
+00000070  b4 63 99 9f 62 6d b7 6d  f4 ad 1f fe d9 de 00 84  |.c..bm.m........|
+00000080  4b bb 0c bc c8 82 a8 1d  8a ac f6 10 2d 5d d4 c7  |K...........-]..|
+00000090  37 f8 fc 89 24 ea c4 b8  87 f4 f4 f0 4b cd db e2  |7...$.......K...|
+000000a0  15 03 95 1e c1 10 7c e8  6d 99 6c e0 bc e1 0a a5  |......|.m.l.....|
+000000b0  d8 36 eb 59 93 6d 1c 96  1c 61 1b 11 36 04 58 6b  |.6.Y.m...a..6.Xk|
+000000c0  c5 b0 fb 8e 9f 21 4a 25  a1 59 ee 5d 1b e3 e3 98  |.....!J%.Y.]....|
+000000d0  71 0a d8 3f 18 f2 b2 1c  6f ec 6d 87 13 b9 d3 25  |q..?....o.m....%|
+000000e0  53 c1 00 78 be 99 82 f6  27 05 24 01 10 1c 59 19  |S..x....'.$...Y.|
+000000f0  94 6a af 7e e5 ae c5 03  14 04 e2 fe 5e 59 e8 e0  |.j.~........^Y..|
+00000100  45 3d af c0 40 ea 84 0a  13 9c d3 0f d4 69 3f 3e  |E=..@........i?>|
+00000110  97 83 ac b5 b9 07 56 9a  19 44 ca                 |......V..D.|
 >>> Flow 8 (server to client)
-00000000  16 03 03 00 81 28 ba 2e  7a 2b 59 83 ae aa ba c7  |.....(..z+Y.....|
-00000010  d7 49 a5 ca c0 fc 8b 49  f5 10 77 ac e7 ae 12 de  |.I.....I..w.....|
-00000020  0d ad 0e 2c d9 ee 99 c4  95 7b 09 b2 91 27 44 6a  |...,.....{...'Dj|
-00000030  7c 08 ce bb 98 4a 1c 8c  47 30 21 c7 5d 1e 86 39  ||....J..G0!.]..9|
-00000040  79 07 48 2a ac 90 7b 26  46 6a a5 b1 7c df fa ae  |y.H*..{&Fj..|...|
-00000050  0f 20 c8 f0 b5 65 57 2b  d5 1f 14 cc bc 7e 94 42  |. ...eW+.....~.B|
-00000060  b6 30 c1 d7 eb 8d 39 0f  65 7a b7 d0 38 21 eb b0  |.0....9.ez..8!..|
-00000070  2d 04 5a 8b 9c 8b 24 91  fe de ac 1f f5 4f aa 74  |-.Z...$......O.t|
-00000080  71 e1 98 8b df 2f 16 03  03 02 69 fb 1f be be 41  |q..../....i....A|
-00000090  51 00 c5 48 bc a3 18 78  2c dc e3 59 d2 0d 23 c7  |Q..H...x,..Y..#.|
-000000a0  2b 03 f3 ce 08 81 62 8a  e9 59 52 06 2a cd 7f fe  |+.....b..YR.*...|
-000000b0  f4 58 5a a4 6c d1 fa f2  1e 31 7e c5 14 39 dc 37  |.XZ.l....1~..9.7|
-000000c0  27 4f 70 ef 79 7e b1 d1  32 1b 3c cf 08 e2 8a 44  |'Op.y~..2.<....D|
-000000d0  56 48 ea 85 8b 86 1d 77  ea 75 f2 c6 8b 14 9d 57  |VH.....w.u.....W|
-000000e0  17 87 29 64 e1 ef 1a 46  25 ed e1 d3 e6 90 63 8d  |..)d...F%.....c.|
-000000f0  30 b6 4d 3c 98 68 45 95  78 11 2c c5 4e 2c 2b 3a  |0.M<.hE.x.,.N,+:|
-00000100  a8 8b 02 1c b9 15 09 ea  59 30 c7 a8 d5 28 f3 45  |........Y0...(.E|
-00000110  77 eb bc bc 4a d9 82 4a  7d 8b 5e e1 36 17 ba 95  |w...J..J}.^.6...|
-00000120  34 ea 7e d7 b8 0d 8c 63  07 30 d9 07 49 df b0 ea  |4.~....c.0..I...|
-00000130  aa 5e 95 7f 90 ab 09 79  31 88 27 00 9e bd 84 5b  |.^.....y1.'....[|
-00000140  ab f6 be 18 10 42 11 49  bd ce 42 dc 2b ae 8f 00  |.....B.I..B.+...|
-00000150  a1 74 5a d1 e3 0b ba 62  57 5f 0e 65 e4 13 ce 78  |.tZ....bW_.e...x|
-00000160  b1 da 89 03 f6 42 cd 1b  fe 03 0c f4 89 77 07 bd  |.....B.......w..|
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-00000180  75 bb 66 e1 32 97 65 e2  e8 2c b1 bc 39 14 3a d6  |u.f.2.e..,..9.:.|
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-000001a0  5c 59 5a 51 11 71 1e 3b  1e 25 b8 20 ef 16 d0 27  |\YZQ.q.;.%. ...'|
-000001b0  f9 ad 01 61 96 8c 50 a2  60 86 99 8c b3 cf 04 07  |...a..P.`.......|
-000001c0  de 8a b3 85 53 95 28 e7  6c db 26 42 b2 6c 51 3c  |....S.(.l.&B.lQ<|
-000001d0  b7 54 98 ff 78 48 b2 8e  11 b9 3b 59 b9 38 0b 48  |.T..xH....;Y.8.H|
-000001e0  ac 11 b3 0c b2 f7 98 58  64 ce 16 ae 78 9f 39 ce  |.......Xd...x.9.|
-000001f0  20 2b c3 14 74 54 17 54  8e a1 b7 ed 48 77 37 a0  | +..tT.T....Hw7.|
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-00000230  64 bf 91 30 b9 2f 31 5b  76 99 67 50 6e b3 fa 00  |d..0./1[v.gPn...|
-00000240  1f 1f 50 1d 52 ea f9 98  7d 59 3a 1d 10 b5 cf 00  |..P.R...}Y:.....|
-00000250  49 a6 72 78 2c e8 2a b2  64 38 34 55 25 b1 4f f7  |I.rx,.*.d84U%.O.|
-00000260  3d 5d 18 d8 63 c4 34 b9  78 15 19 c8 6c d8 03 e9  |=]..c.4.x...l...|
-00000270  0b cb bd 0c b1 32 9c 32  57 ad 7f bd cd db 99 77  |.....2.2W......w|
-00000280  7f 2a 01 60 c6 ce 99 a9  a0 17 ae 02 0c 72 67 b2  |.*.`.........rg.|
-00000290  0e d3 24 c4 88 96 7f ab  c2 46 fb fe 47 b0 72 a0  |..$......F..G.r.|
-000002a0  87 6b 22 00 ee 97 ce 13  eb ab 5b 41 2e 60 79 a1  |.k".......[A.`y.|
-000002b0  4b d1 8f d2 d0 5b 02 77  9c 29 1e ea 3e 30 a9 8f  |K....[.w.)..>0..|
-000002c0  07 b7 22 2a d7 64 50 cf  0a 34 6b db b8 8d e4 f6  |.."*.dP..4k.....|
-000002d0  50 71 65 54 0f e0 87 93  ca 3e 1b 68 29 2f d9 dd  |PqeT.....>.h)/..|
-000002e0  15 76 f0 c3 1c a4 ca e9  5f 17 29 87 bb 0a 5b 74  |.v......_.)...[t|
-000002f0  6c 2d 13 63 16 03 03 00  bc a6 81 fa a1 7b 6e 54  |l-.c.........{nT|
-00000300  0b 47 30 a5 e9 ca e6 86  db f9 af 19 5e fe ae a6  |.G0.........^...|
-00000310  91 c8 e9 c0 c5 17 b4 a6  2b cd 40 ee 9e fc 2d ef  |........+.@...-.|
-00000320  8c 68 6c ce 05 66 b1 80  7d 6f 07 91 6e 9f 23 ab  |.hl..f..}o..n.#.|
-00000330  f2 a7 d1 99 d1 5f ed 58  b1 aa 7f 31 f4 7f 2a ea  |....._.X...1..*.|
-00000340  3e 21 a0 4e 1c 49 d9 ab  1e 43 84 dc 42 cf f5 75  |>!.N.I...C..B..u|
-00000350  ae fc 97 a3 e7 b8 51 1b  68 1b f5 83 2b 2d b0 a5  |......Q.h...+-..|
-00000360  7c f9 f2 21 c1 68 d9 e2  4f bf f5 1e e6 90 7b 54  ||..!.h..O.....{T|
-00000370  2c 45 d2 35 a1 5c da 57  be ce 90 a7 56 90 f2 55  |,E.5.\.W....V..U|
-00000380  08 9e b1 52 09 12 b9 f1  8b fd fb 1a f2 9f 39 bf  |...R..........9.|
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-000003b0  69 7b c3 9c 22 16 03 03  00 4a ba fe c0 02 30 02  |i{.."....J....0.|
-000003c0  33 02 67 87 19 20 13 90  48 80 a1 93 97 cc a6 26  |3.g.. ..H......&|
-000003d0  51 14 4d 2b 60 3d da 72  f0 99 51 2a 8b b4 54 ff  |Q.M+`=.r..Q*..T.|
-000003e0  47 6b 6c b4 6a 92 a9 9c  3c c0 ee ae 79 25 de 17  |Gkl.j...<...y%..|
-000003f0  61 cf 06 37 6f 84 e8 b8  4c 7b 9a c1 a1 ff 6e c5  |a..7o...L{....n.|
-00000400  f3 0b 7d 8d 16 03 03 00  14 a9 38 b9 f0 df 71 c5  |..}.......8...q.|
-00000410  1f fa 77 04 1e b4 4c 2b  64 01 e6 59 cb           |..w...L+d..Y.|
+00000000  16 03 03 00 81 4b d8 09  ef 6a 5b a2 c2 e0 2c b3  |.....K...j[...,.|
+00000010  fa e9 21 b3 64 c7 51 8d  d4 14 14 ba 7b 2f f8 1a  |..!.d.Q.....{/..|
+00000020  e9 f8 7a 69 8b 0b b4 5f  26 c5 b6 2e dd c9 90 04  |..zi..._&.......|
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+00000040  e1 ee 66 4c 1a da 66 43  50 fa 94 2c 84 21 10 f0  |..fL..fCP..,.!..|
+00000050  00 85 a7 c2 ea 73 19 52  b7 f2 2a e8 17 17 23 67  |.....s.R..*...#g|
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 >>> Flow 9 (client to server)
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-000000c0  c3 f3 54 1c 9e bc a3 20  c1 de f1 e7 3a 7e 5a fd  |..T.... ....:~Z.|
-000000d0  4f 22 f7 d4 e7 19 fb 94  6f fd bd 15 39 bf 9e 4b  |O"......o...9..K|
-000000e0  63 35 19 0b 59 28 47 f3  56 ae 4c 13 50 30 b5 d1  |c5..Y(G.V.L.P0..|
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-000001d0  71 79 1a 72 f9 6f 19 6d  eb 29 32 39 4d da 69 e4  |qy.r.o.m.)29M.i.|
-000001e0  e9 f8 3a b0 b8 10 76 c0  21 3b 95 76 ec 01 7d f2  |..:...v.!;.v..}.|
-000001f0  10 15 5f 1d 94 b1 13 e8  ca c4 07 c4 aa d1 50 65  |.._...........Pe|
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-00000210  41 6c 4f dc 07 bb 28 59  7f 1d cb 61 4d 2d 1e 43  |AlO...(Y...aM-.C|
-00000220  b5 d5 8f b8 84 ec 4d 1c  c7 5c 62 b7 21 71 83 74  |......M..\b.!q.t|
-00000230  58 3b 70 92 c8 c8 af 7d  f6 da 75 9d 30 99 cf 33  |X;p....}..u.0..3|
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-00000250  34 0c 88 8f 55 da 85 f8  92 89 4c 34 6a 73 98 bd  |4...U.....L4js..|
-00000260  86 70 11 7e a3 b7 04 0a  24 07 34 6c 06 64 16 03  |.p.~....$.4l.d..|
-00000270  03 00 35 08 d2 96 51 e2  6f 68 ae 19 04 9c 59 e4  |..5...Q.oh....Y.|
-00000280  09 72 da 6a 8e ee 4f 87  b3 b3 1e 89 0b a5 45 32  |.r.j..O.......E2|
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-000002a0  d6 33 c2 ff 5f 2d 6d 94  16 03 03 00 98 49 3c 15  |.3.._-m......I<.|
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-00000300  42 ea ef 8b c8 55 c6 c4  27 26 e5 f7 57 2e 35 f8  |B....U..'&..W.5.|
-00000310  e2 cc 41 6a 29 e2 66 b3  44 fe 2b f9 de 7d 32 96  |..Aj).f.D.+..}2.|
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+00000170  87 95 fb 93 57 2e 32 fb  b3 cf d2 0d 42 02 4f 6a  |....W.2.....B.Oj|
+00000180  9e de ee 6a e6 7e e5 d2  ba cb 00 5d ff b4 6d 7f  |...j.~.....]..m.|
+00000190  23 5e 93 be e9 3a c1 b4  78 30 53 90 07 e4 a7 af  |#^...:..x0S.....|
+000001a0  da e1 29 7d 50 a5 76 ec  a8 5e 96 50 45 26 c4 9d  |..)}P.v..^.PE&..|
+000001b0  c1 99 98 c6 1a bf 93 c1  63 b3 0a 2d af c8 29 7d  |........c..-..)}|
+000001c0  ef b2 d3 8f aa 93 fb be  39 c0 a1 65 51 e8 6e c4  |........9..eQ.n.|
+000001d0  45 cb 2a 52 b7 ec e0 48  c0 b2 cc c7 72 12 18 e0  |E.*R...H....r...|
+000001e0  c7 9f fa 09 97 95 16 9f  f4 5d 70 c5 d6 7f 23 d5  |.........]p...#.|
+000001f0  53 98 d0 80 50 9b 52 46  11 d4 97 ea 47 26 f5 6f  |S...P.RF....G&.o|
+00000200  66 7b 8a cc f8 8d 70 c7  ec fa 72 de ba ac d4 b2  |f{....p...r.....|
+00000210  be 7d d8 78 44 dd de 66  53 26 f4 c0 8a 67 61 cb  |.}.xD..fS&...ga.|
+00000220  46 34 3d 6f 9e 9b dc ee  4a b9 5c 67 2b d9 87 2a  |F4=o....J.\g+..*|
+00000230  35 42 1c 3e b8 08 c9 32  13 a6 6f fc 4d cc be dd  |5B.>...2..o.M...|
+00000240  ad 76 19 1c 2d b3 6e 04  a1 17 05 93 b9 69 27 42  |.v..-.n......i'B|
+00000250  23 13 7b c0 f1 53 9c b5  1d 8e 5c f6 40 7e 5a e9  |#.{..S....\.@~Z.|
+00000260  20 dd 18 7a 0c f2 7b 5a  ec 3d 4e 3b 29 b2 16 03  | ..z..{Z.=N;)...|
+00000270  03 00 35 15 15 54 38 4e  87 f1 c1 9a 90 b2 74 df  |..5..T8N......t.|
+00000280  72 34 aa 0b 41 f3 df b4  c5 fd 50 00 2a 36 a8 d5  |r4..A.....P.*6..|
+00000290  c4 49 ac b8 58 3e 89 48  cb a9 4e b1 a9 0f ee 51  |.I..X>.H..N....Q|
+000002a0  37 d3 60 ca 23 76 68 0b  16 03 03 00 98 53 3c 0e  |7.`.#vh......S<.|
+000002b0  d5 3b d3 78 9f 47 5d 9e  1b b6 04 5f d4 04 66 55  |.;.x.G]...._..fU|
+000002c0  68 bd d7 ab 54 b7 e5 9a  12 9b 0c 1d 75 7b c7 35  |h...T.......u{.5|
+000002d0  e3 9e 9d a0 8f 61 7a 32  d1 a7 23 2a b6 ba 48 7c  |.....az2..#*..H||
+000002e0  1a 62 66 61 b4 3d e8 e3  a9 4e 85 7a 8d 5b f3 69  |.bfa.=...N.z.[.i|
+000002f0  c8 bc 0a 8a c7 e4 df 78  9b a8 cf 1d 37 14 90 a5  |.......x....7...|
+00000300  a8 ce f7 1f e7 a3 e5 d8  97 be 95 fd d3 c0 d0 81  |................|
+00000310  bf a6 e1 b3 6b 29 ee c6  16 3c 4c 68 6e b4 42 72  |....k)...<Lhn.Br|
+00000320  84 a0 97 0f 0e b2 44 0c  4f c6 df 04 b7 bf d8 e7  |......D.O.......|
+00000330  08 af 33 35 56 ed 6b cc  42 a8 9f 8e 59 9c 9c 32  |..35V.k.B...Y..2|
+00000340  29 77 87 6e d6 14 03 03  00 11 97 7a db d1 50 96  |)w.n.......z..P.|
+00000350  68 b7 04 90 79 fd f3 79  ed f3 de 16 03 03 00 20  |h...y..y....... |
+00000360  16 57 80 e9 30 65 46 29  74 09 32 70 13 1f f8 5d  |.W..0eF)t.2p...]|
+00000370  54 3f 14 4b af a1 51 b3  cd 1f e6 01 d6 68 11 fc  |T?.K..Q......h..|
 >>> Flow 10 (server to client)
-00000000  14 03 03 00 11 ab e7 45  c8 02 30 54 0f 5a ea 63  |.......E..0T.Z.c|
-00000010  42 ea 39 9b 46 ba 16 03  03 00 20 60 56 50 ad d0  |B.9.F..... `VP..|
-00000020  fe 7d 56 a2 e1 d9 87 76  96 3b b3 27 3b 7f be e4  |.}V....v.;.';...|
-00000030  98 d0 7a 6a a2 e3 37 1c  f5 a9 a1 17 03 03 00 19  |..zj..7.........|
-00000040  67 ee fd 6d 58 de bd b8  df aa 4d 36 e4 93 83 7b  |g..mX.....M6...{|
-00000050  e5 bd d1 ba 5c f3 2f aa  a8 16 03 03 00 14 73 29  |....\./.......s)|
-00000060  15 c9 16 62 a2 97 81 f8  44 94 86 c1 94 37 9f 19  |...b....D....7..|
-00000070  1d c2                                             |..|
+00000000  14 03 03 00 11 1b a8 a8  a9 c6 a8 85 60 bc 14 0d  |............`...|
+00000010  86 ce a5 0f 45 17 16 03  03 00 20 cb 3a 73 db 55  |....E..... .:s.U|
+00000020  05 7e 3e 4b 6d d0 eb ca  68 39 bf 71 ba 6c e5 0c  |.~>Km...h9.q.l..|
+00000030  a7 90 d6 c1 b8 55 87 c6  20 40 35 17 03 03 00 19  |.....U.. @5.....|
+00000040  28 50 71 7c f0 7c 1e 61  fb de 5d d1 bb 77 f6 c8  |(Pq|.|.a..]..w..|
+00000050  a4 76 8d ab d4 c2 fe 27  96 16 03 03 00 14 e4 7e  |.v.....'.......~|
+00000060  51 bb 26 a8 9c 0c b0 25  7a 57 b9 98 c2 20 5a 50  |Q.&....%zW... ZP|
+00000070  07 ca                                             |..|
 >>> Flow 11 (client to server)
-00000000  16 03 03 01 16 bb 29 a6  76 e4 5a ec 09 4e a7 6a  |......).v.Z..N.j|
-00000010  66 d7 6e 39 fc 5a dd be  9f 34 1e cb 3a b3 3f 1e  |f.n9.Z...4..:.?.|
-00000020  48 ad 0b e0 0e 43 b1 3e  57 f3 4a d1 c7 c6 1a f0  |H....C.>W.J.....|
-00000030  a8 3e d1 37 de 95 ad 0f  92 85 ee b2 2b 1c 30 2f  |.>.7........+.0/|
-00000040  f5 70 ca 42 28 0c c2 e4  06 73 d5 eb 31 d2 86 f7  |.p.B(....s..1...|
-00000050  d6 42 5d e0 b0 a6 c0 94  2c 52 0b 18 2c 95 9c 2a  |.B].....,R..,..*|
-00000060  56 4d a4 17 fb 51 49 be  3a 37 27 87 c7 d5 94 56  |VM...QI.:7'....V|
-00000070  88 c5 94 a6 ff a1 dd cf  2b 70 e1 6c a9 39 1b e7  |........+p.l.9..|
-00000080  69 c3 0e ef 08 d2 fb 6d  54 8a 80 64 99 6a b3 e4  |i......mT..d.j..|
-00000090  2e 44 62 ce 1c 4d 7a 0a  45 cd ba 52 23 47 6d 05  |.Db..Mz.E..R#Gm.|
-000000a0  97 03 c6 c4 c7 5a ca bf  38 73 b4 8c e5 a5 14 1b  |.....Z..8s......|
-000000b0  10 ea 29 17 af f6 37 bd  7f 56 88 b2 63 92 9f b9  |..)...7..V..c...|
-000000c0  6c 18 9b 1b ad ce ac f0  97 45 3e 72 e0 10 8e 64  |l........E>r...d|
-000000d0  80 dc cd a1 f9 10 d1 cd  46 2a 98 cd 40 94 5b dc  |........F*..@.[.|
-000000e0  f5 07 05 96 f3 74 db 91  3c 45 f1 6e b7 f9 52 e8  |.....t..<E.n..R.|
-000000f0  95 05 c3 fc 95 f7 3d 91  45 cd fe b1 13 01 78 e0  |......=.E.....x.|
-00000100  31 fc e2 0d 5b 97 5b 92  43 0a 83 21 c4 f2 3f d3  |1...[.[.C..!..?.|
-00000110  3f 1a a0 52 e0 d0 fe a7  03 6c 1a                 |?..R.....l.|
+00000000  16 03 03 01 16 66 3c 1a  62 c3 4a f9 e4 66 01 d4  |.....f<.b.J..f..|
+00000010  f7 e8 5a fb 95 c4 40 33  d4 af 61 78 d6 54 91 2b  |..Z...@3..ax.T.+|
+00000020  62 72 d5 7b b8 2c 71 11  4e 0c 2d 79 6d 41 b1 9e  |br.{.,q.N.-ymA..|
+00000030  df 59 d8 e0 5c 72 98 b5  29 55 1e 9b 01 a5 af 2c  |.Y..\r..)U.....,|
+00000040  c3 87 4b f0 c8 ca 4d 56  fb 3a 7e 04 e5 b6 4f 6d  |..K...MV.:~...Om|
+00000050  1e 53 26 5d af fb 17 ee  97 87 45 2f df 1b 21 80  |.S&]......E/..!.|
+00000060  21 81 2b 18 2d 2d e9 3c  c4 01 32 91 b7 88 27 9e  |!.+.--.<..2...'.|
+00000070  26 40 e7 6a 27 c5 a0 b4  a3 ed 4d 4b a4 e3 0b c7  |&@.j'.....MK....|
+00000080  49 42 ca ef e9 16 5c 98  8d ab fc 7d 00 83 03 89  |IB....\....}....|
+00000090  a4 97 1e 3f 9e d8 ba c5  f5 2a 0b 0a ed a0 a5 59  |...?.....*.....Y|
+000000a0  27 03 36 7e 94 d8 9a 3c  fc f6 f6 52 b6 a7 fa 36  |'.6~...<...R...6|
+000000b0  04 83 2f e7 99 e5 1c 56  27 48 13 a0 59 ca ca 3b  |../....V'H..Y..;|
+000000c0  36 2d 25 e8 6f 6a cb 07  74 f8 1b 7d ba 3e 6e e1  |6-%.oj..t..}.>n.|
+000000d0  1d 3e 93 c6 23 f4 eb bf  ad 62 21 1a da 53 e1 13  |.>..#....b!..S..|
+000000e0  0a 3a 9c 57 48 d5 ee d3  72 af c3 74 fc 74 67 7d  |.:.WH...r..t.tg}|
+000000f0  b4 76 fc 21 55 67 49 92  fc 71 5d 42 69 d6 01 b5  |.v.!UgI..q]Bi...|
+00000100  83 4e b8 cd f9 ed 28 41  ae 95 2f d6 69 b0 d3 b8  |.N....(A../.i...|
+00000110  bd 06 d6 00 74 44 c9 47  aa 8e 1d                 |....tD.G...|
 >>> Flow 12 (server to client)
-00000000  16 03 03 00 81 47 d2 a4  b9 04 d0 39 aa 1f d3 7a  |.....G.....9...z|
-00000010  f2 c3 a5 03 8a 35 6c 6b  bf 18 02 62 d3 ab 8a 0f  |.....5lk...b....|
-00000020  99 69 f3 84 45 7a 09 28  09 68 3a 67 8a ee 94 b1  |.i..Ez.(.h:g....|
-00000030  d3 2a e6 37 b7 f1 88 df  c0 18 42 96 78 4e cf 3b  |.*.7......B.xN.;|
-00000040  e9 35 50 af ee 96 52 e9  1c 58 47 79 87 97 ce d9  |.5P...R..XGy....|
-00000050  71 9b 4a 47 bc 60 8f 95  ea 75 4e c8 3e ca 79 0f  |q.JG.`...uN.>.y.|
-00000060  22 b2 37 19 12 d6 08 4d  01 93 d9 86 ed 4c 9e 42  |".7....M.....L.B|
-00000070  fb 9b 37 26 98 33 74 cf  84 f4 e1 23 81 6f b6 b2  |..7&.3t....#.o..|
-00000080  a9 27 e7 88 50 77 16 03  03 02 69 6b 78 db e3 0e  |.'..Pw....ikx...|
-00000090  cc 07 a4 96 1f 75 13 6d  fe cd 3d 36 8c b0 44 e9  |.....u.m..=6..D.|
-000000a0  4a 3a 41 26 c9 8c 2f 25  28 9d a8 7b dd df 28 6a  |J:A&../%(..{..(j|
-000000b0  fc ef 87 d4 06 dd 4e 05  ff 40 e3 6c 49 94 ad 1c  |......N..@.lI...|
-000000c0  c2 30 cc 41 35 39 a2 70  95 db de a7 c0 aa 05 c0  |.0.A59.p........|
-000000d0  a2 a7 18 8e ba 70 ee 4b  0d 8d de 98 c7 8a 58 9c  |.....p.K......X.|
-000000e0  8b 51 f7 8f bb 7c 8f f7  60 53 9e 11 7e 5c e6 25  |.Q...|..`S..~\.%|
-000000f0  be 22 aa 0a 3d 35 1c ac  2b 7d 98 fc 01 3a a9 9d  |."..=5..+}...:..|
-00000100  bf b5 d1 ae 10 52 ae 17  f6 df fc 24 38 0b f2 64  |.....R.....$8..d|
-00000110  a8 9a 5c ff cb 42 bd 9d  af 41 4d 6b 22 67 94 ac  |..\..B...AMk"g..|
-00000120  6b 95 2e 43 41 5d 5e c9  67 29 5f f8 8e 13 9d 18  |k..CA]^.g)_.....|
-00000130  3c d4 ff 20 66 ff a6 d1  84 1a 33 31 27 5d 28 b5  |<.. f.....31'](.|
-00000140  24 57 43 c1 83 6a e7 8c  35 0c a7 6f 5e 78 e8 84  |$WC..j..5..o^x..|
-00000150  7c ee 9a 94 dc fd f7 a4  10 3d bb 66 0a 17 14 e7  ||........=.f....|
-00000160  d7 29 47 f7 70 76 d6 ec  b2 3c e2 a0 22 e6 c5 c3  |.)G.pv...<.."...|
-00000170  bf a6 94 72 8b 70 eb 2b  b8 4f c9 7d 72 22 75 ce  |...r.p.+.O.}r"u.|
-00000180  b9 c2 34 08 ac 87 d3 a8  35 81 f7 5e 20 02 0c e8  |..4.....5..^ ...|
-00000190  0a 47 4e 37 4a 03 6d b1  c5 8f 29 77 80 c7 6c 5c  |.GN7J.m...)w..l\|
-000001a0  c3 3e 6f 3d 02 ee 5e f2  fb 20 a2 ad c1 5b 2c 02  |.>o=..^.. ...[,.|
-000001b0  ef dd 81 e7 ea af f0 01  4f 0b eb f8 a1 82 3d ee  |........O.....=.|
-000001c0  be b5 09 df f2 34 49 f0  e8 f3 bc 7e e7 6a 14 0d  |.....4I....~.j..|
-000001d0  e4 aa e5 38 8a 2c 15 01  52 48 83 46 50 13 2b 71  |...8.,..RH.FP.+q|
-000001e0  f4 48 1a 3d 3f 14 dc 3c  ba fc a8 68 57 44 5d f1  |.H.=?..<...hWD].|
-000001f0  f4 7f 23 8d ca f1 75 99  8c 36 99 38 b9 06 85 d0  |..#...u..6.8....|
-00000200  a6 76 8b ae 7e 2a 26 cb  cc 9e 8c 7c 98 e6 00 86  |.v..~*&....|....|
-00000210  a9 d4 cb 42 8c 04 dc 6b  37 1e 8b e2 98 90 0f b3  |...B...k7.......|
-00000220  c0 ea 07 1c 92 45 39 65  12 90 41 23 93 55 59 13  |.....E9e..A#.UY.|
-00000230  22 e1 68 05 cc 5d ef a2  40 85 fb 61 d5 53 cb 77  |".h..]..@..a.S.w|
-00000240  63 7b 16 bf c6 17 57 fb  58 1e d2 86 1a 4a 79 a2  |c{....W.X....Jy.|
-00000250  1f da 2c 64 65 1c 7c 13  21 1b 33 22 36 0e 03 41  |..,de.|.!.3"6..A|
-00000260  8e 6a 78 98 ae 29 71 3e  5c be 5f 83 55 f4 80 2d  |.jx..)q>\._.U..-|
-00000270  b8 2a b8 84 bd 97 7c 60  03 ae 67 77 44 47 70 c2  |.*....|`..gwDGp.|
-00000280  09 0d 1b ed a8 17 8e 84  97 1a b4 75 c2 48 86 bd  |...........u.H..|
-00000290  b1 3c 1f 7c 1a 5b 60 10  a0 66 aa 8e f7 ba 9b e8  |.<.|.[`..f......|
-000002a0  35 6c 46 f0 67 3f f1 8b  5f a0 be 31 2e 45 22 80  |5lF.g?.._..1.E".|
-000002b0  ba d1 ff 88 f0 c8 bd 31  84 64 6a 07 02 75 bd 99  |.......1.dj..u..|
-000002c0  f1 aa 3c 9d 0e b8 f4 76  b3 24 4f 68 f0 83 b1 da  |..<....v.$Oh....|
-000002d0  eb 70 1e 27 f4 17 90 a4  bc e5 1f d8 8b ee a1 e4  |.p.'............|
-000002e0  1e c5 f4 a2 5b c3 0c 6d  2e c8 0e 67 89 4b d9 fe  |....[..m...g.K..|
-000002f0  9b a0 15 97 16 03 03 00  bc 2c e6 a2 fe 1b d7 1e  |.........,......|
-00000300  38 85 ef 39 d1 d6 df ae  c4 7f af b2 ff c2 92 0b  |8..9............|
-00000310  37 e3 5c a9 6c 2c 9e f7  0e a3 88 ee 09 14 6b eb  |7.\.l,........k.|
-00000320  46 81 74 4a a7 f8 39 82  7d a0 16 69 e4 17 52 f0  |F.tJ..9.}..i..R.|
-00000330  16 5f f7 2a a1 a0 a2 bb  41 4c 0c f9 9c e3 af 5e  |._.*....AL.....^|
-00000340  bd 43 47 2d 6d 4a 88 60  95 52 29 94 3d ec 75 d4  |.CG-mJ.`.R).=.u.|
-00000350  dc f5 01 4a 57 fd 7b 96  13 75 5b ed a8 9d 29 5f  |...JW.{..u[...)_|
-00000360  5f 28 dc 04 3a 91 0f 6b  d6 7d 32 fe 75 cd 61 49  |_(..:..k.}2.u.aI|
-00000370  1b 6d b3 c6 41 87 6b 2d  09 e1 3d 8e f5 fb 9b b7  |.m..A.k-..=.....|
-00000380  04 9a 01 ab 82 e5 2b 17  4f 93 d7 ef 31 79 10 b0  |......+.O...1y..|
-00000390  1c cb 17 5b 8a 7a e9 22  ea 83 68 93 68 f6 85 34  |...[.z."..h.h..4|
-000003a0  d1 4d 75 5a b3 69 46 42  92 04 09 47 b1 8e 67 ad  |.MuZ.iFB...G..g.|
-000003b0  47 4e 2c 02 48 16 03 03  00 14 b0 40 bb eb e1 a6  |GN,.H......@....|
-000003c0  94 fd d0 8a e1 91 a7 c9  d2 4b f8 95 95 c7        |.........K....|
+00000000  16 03 03 00 81 d3 99 6f  14 2b a1 f4 d7 45 c9 94  |.......o.+...E..|
+00000010  69 0b b3 72 f4 2c 2e 5c  80 96 09 20 2f 63 a1 e4  |i..r.,.\... /c..|
+00000020  8b df d7 22 11 71 bd 17  db da 2d c6 78 e8 9a 95  |...".q....-.x...|
+00000030  6b 39 34 a2 13 7f 39 77  8b e5 1b 6c 4b 20 79 40  |k94...9w...lK y@|
+00000040  a1 d9 69 89 b1 e2 60 8a  75 88 ae 83 b9 4f 42 a4  |..i...`.u....OB.|
+00000050  c9 c7 44 ac 0d 3f 1c ca  49 f9 a7 05 e2 c7 05 cd  |..D..?..I.......|
+00000060  30 30 d2 f9 c2 87 60 33  3b 25 d0 e0 5e c2 bd 98  |00....`3;%..^...|
+00000070  9c 51 d8 38 c9 ef 04 f4  39 30 50 b6 35 53 f6 95  |.Q.8....90P.5S..|
+00000080  eb 5d 67 05 62 9a 16 03  03 02 69 39 94 a1 8d 01  |.]g.b.....i9....|
+00000090  37 64 c6 be bb 9c 22 9d  56 e8 68 ab 0f 7a 3a e7  |7d....".V.h..z:.|
+000000a0  2d 26 b7 ba 3e 54 38 b3  32 9d 7b d7 43 c4 d2 b3  |-&..>T8.2.{.C...|
+000000b0  9a 84 62 73 03 7a f2 68  ec 3e 41 d2 68 c9 22 1a  |..bs.z.h.>A.h.".|
+000000c0  e9 4d 9c e8 80 6a a9 9e  6a bd 67 5d 77 97 8b f7  |.M...j..j.g]w...|
+000000d0  32 cb 3a cb c2 c0 a1 40  7e 63 81 5f 19 a5 71 20  |2.:....@~c._..q |
+000000e0  c3 76 88 ae 5c d4 bd 54  08 e7 7e e7 77 7e 3d 91  |.v..\..T..~.w~=.|
+000000f0  b5 40 f7 7e 95 d5 e3 f2  e5 4a 57 f6 d9 94 df 07  |.@.~.....JW.....|
+00000100  56 45 09 c4 bc 65 05 04  57 f4 00 c5 91 4c dc 4d  |VE...e..W....L.M|
+00000110  a0 1e c6 e2 37 35 d0 5a  e9 79 ce f5 91 6d 3e 39  |....75.Z.y...m>9|
+00000120  c3 68 6a 76 6d f3 29 1d  e0 ef b2 20 3e 2a ac 11  |.hjvm.).... >*..|
+00000130  7e 11 2d a3 84 60 94 b5  8e 3a e6 4b 34 70 aa f8  |~.-..`...:.K4p..|
+00000140  e3 f9 0f 2c a4 bf 5b 27  7e c9 5e 6f c0 11 b4 ff  |...,..['~.^o....|
+00000150  53 6b 98 ee 20 77 87 87  fc 8e 30 1b 8f 74 29 af  |Sk.. w....0..t).|
+00000160  a2 c7 e8 c1 da e5 d7 0f  70 ec 27 23 46 3f 16 b1  |........p.'#F?..|
+00000170  59 bd 43 76 09 1d 8c f4  eb 17 10 a5 c1 1a e0 c6  |Y.Cv............|
+00000180  45 e2 d2 dc 6d f4 9a 87  36 ef 71 18 5c 1d e7 7c  |E...m...6.q.\..||
+00000190  40 d6 4c 16 ee 58 75 d7  56 9f 2e 17 80 1d 74 1c  |@.L..Xu.V.....t.|
+000001a0  fd 86 7c 2b 05 ac ef 07  18 a3 98 73 fa 9c 16 6c  |..|+.......s...l|
+000001b0  14 95 37 91 1e a2 c7 47  a8 87 11 35 30 d8 ed 60  |..7....G...50..`|
+000001c0  ba 65 ee 66 2b 1f db 67  c2 d0 71 26 3d ae 17 94  |.e.f+..g..q&=...|
+000001d0  f0 f6 65 01 bb 1d 85 7e  b3 d8 2c f1 96 c5 d5 e0  |..e....~..,.....|
+000001e0  97 a4 3e df 97 ff 8f 4b  e3 72 49 c4 5b 87 4e 06  |..>....K.rI.[.N.|
+000001f0  93 11 75 04 7b 80 9d 1c  a7 85 a3 2c f1 16 8a b9  |..u.{......,....|
+00000200  78 6b 27 1e 9a e3 86 eb  f9 42 95 10 02 d5 b6 01  |xk'......B......|
+00000210  b3 94 04 63 49 50 9e 11  71 07 aa a1 d6 9d d1 db  |...cIP..q.......|
+00000220  f4 ea 2e bb fa ca 1e 00  53 75 70 de 0a 72 eb 55  |........Sup..r.U|
+00000230  ab b7 ff 30 ad 5e 7e 13  90 75 42 5d 07 07 21 0f  |...0.^~..uB]..!.|
+00000240  db a6 f4 61 9c bf 31 34  e4 98 bb c4 ac 41 2d 76  |...a..14.....A-v|
+00000250  fb 6c 30 b0 e2 98 5f ed  d9 a8 42 d7 75 a1 bc 36  |.l0..._...B.u..6|
+00000260  f2 3e c5 ac 50 ae c7 2e  42 35 6c 1a 47 aa 1f 0a  |.>..P...B5l.G...|
+00000270  2f ff 6e 0a a5 c4 b5 a5  92 3f 54 d0 4e 62 6e 3e  |/.n......?T.Nbn>|
+00000280  cb 07 2d 4d 1a fb 94 5b  f8 d0 5b 26 34 2b 1b 26  |..-M...[..[&4+.&|
+00000290  8c dd 91 a7 66 21 89 d0  11 24 a5 5f 99 ae 62 84  |....f!...$._..b.|
+000002a0  34 9c d2 45 71 74 8c 68  db 8b ad 6f df 08 35 38  |4..Eqt.h...o..58|
+000002b0  ed 5c 3b 3e 55 a1 c3 16  b6 61 f4 4d 6d d0 2a 5d  |.\;>U....a.Mm.*]|
+000002c0  10 fb 64 c9 6f 87 6f 3d  ff d1 a0 97 64 b4 12 f9  |..d.o.o=....d...|
+000002d0  2a a8 46 59 1b e4 6b d8  c9 3e ac 14 00 4f 1a e6  |*.FY..k..>...O..|
+000002e0  26 9b 86 32 a3 9b 37 eb  c1 cf 9a 70 16 2e 4a b0  |&..2..7....p..J.|
+000002f0  6e e5 fc c2 16 03 03 00  bc bf c4 ea e0 dc be fe  |n...............|
+00000300  33 7f ef 2b d9 50 f7 87  d5 30 2b 09 bb 63 1e 4c  |3..+.P...0+..c.L|
+00000310  9c 3c a9 10 4e 04 e1 85  29 44 f9 ea 32 61 12 6e  |.<..N...)D..2a.n|
+00000320  63 0f d9 e7 e9 c8 81 a0  eb 4e fe 90 bf f4 f4 af  |c........N......|
+00000330  22 66 21 86 dc 2c f6 ed  b1 be eb b1 ac 14 f5 ce  |"f!..,..........|
+00000340  6c b9 a8 45 e4 3f 09 d1  b1 f3 69 f7 df c4 f0 6c  |l..E.?....i....l|
+00000350  48 f6 15 80 8a b8 b0 39  0e e9 22 9a 5c 72 f9 fa  |H......9..".\r..|
+00000360  95 01 9d ca e4 68 ef 72  e2 34 28 a5 04 5d d2 30  |.....h.r.4(..].0|
+00000370  c6 33 80 a8 f1 8f fb 6c  ec 15 c3 7c 68 7c a2 2e  |.3.....l...|h|..|
+00000380  4d ba 64 af fb f5 b8 f7  6b 6b 8c 5c 56 dc dd 69  |M.d.....kk.\V..i|
+00000390  39 d8 73 75 e3 be 17 09  3f 80 ed cc 12 5b ca d9  |9.su....?....[..|
+000003a0  e6 e2 50 88 41 0b 39 8e  84 6f fb 6a c3 8e 4f fc  |..P.A.9..o.j..O.|
+000003b0  dc 18 ca 02 18 16 03 03  00 14 5e ac 52 4d 0b 89  |..........^.RM..|
+000003c0  33 7d fe 1c d9 b5 1d 1c  2b 6d d4 4f 12 33        |3}......+m.O.3|
 >>> Flow 13 (client to server)
-00000000  16 03 03 00 35 25 1e 49  ad bf 9c 37 e2 d0 2b aa  |....5%.I...7..+.|
-00000010  44 91 d5 61 e7 a5 16 b2  cb 93 43 d7 a0 2b b7 19  |D..a......C..+..|
-00000020  f2 41 d8 36 65 95 4a bb  68 1b 65 7b de 89 a5 af  |.A.6e.J.h.e{....|
-00000030  1a aa ec bf b4 66 97 fc  76 d0 14 03 03 00 11 94  |.....f..v.......|
-00000040  b0 9b 4d 47 6e 63 e3 3d  c4 a7 36 94 3f d2 04 a3  |..MGnc.=..6.?...|
-00000050  16 03 03 00 20 34 f5 58  f2 80 c9 19 41 07 d8 6c  |.... 4.X....A..l|
-00000060  6f 64 e7 e9 76 65 cf a8  61 97 27 29 28 f8 0c 7a  |od..ve..a.')(..z|
-00000070  2c 5e 05 c6 53                                    |,^..S|
+00000000  16 03 03 00 35 a4 b8 43  07 6e 71 c9 b4 fa e1 9c  |....5..C.nq.....|
+00000010  a7 9d 0b 47 d8 ea 8b bd  ea c2 f5 bf 36 fa 88 95  |...G........6...|
+00000020  3b 98 b3 7e 19 21 9b 0f  58 76 e8 de 5b 24 d3 b5  |;..~.!..Xv..[$..|
+00000030  81 bd 11 ce 86 02 b0 d1  3b ac 14 03 03 00 11 3f  |........;......?|
+00000040  4e a4 96 06 71 44 5f 57  30 5e 1a bc 22 8d 42 97  |N...qD_W0^..".B.|
+00000050  16 03 03 00 20 23 e7 90  a5 0a 32 b4 69 06 d7 77  |.... #....2.i..w|
+00000060  df ef f6 2f b8 d8 22 39  08 4f 39 02 e0 7f 62 93  |.../.."9.O9...b.|
+00000070  02 b9 8e a5 b6                                    |.....|
 >>> Flow 14 (server to client)
-00000000  14 03 03 00 11 c3 73 b6  63 12 88 86 2b cb a8 94  |......s.c...+...|
-00000010  9b c4 10 9f 98 cb 16 03  03 00 20 1e 06 97 84 3f  |.......... ....?|
-00000020  7f 2e 8d 1a 81 1d da d1  f5 53 5d a4 89 9e 90 22  |.........S]...."|
-00000030  fd 14 58 d1 f7 b2 cd eb  42 2f e8 17 03 03 00 19  |..X.....B/......|
-00000040  1f e3 dc 74 9d 6b 81 43  cb 31 6b 48 31 50 15 e8  |...t.k.C.1kH1P..|
-00000050  80 f0 60 c4 43 f6 50 9a  3c                       |..`.C.P.<|
+00000000  14 03 03 00 11 0e 2d 1e  73 95 29 15 86 03 a2 da  |......-.s.).....|
+00000010  6c f4 d2 02 2c 57 16 03  03 00 20 cd a2 f5 b6 da  |l...,W.... .....|
+00000020  0c 35 45 96 54 c3 96 5d  d8 e6 03 49 7b 5c d4 6f  |.5E.T..]...I{\.o|
+00000030  02 da 27 9e 2f a7 09 57  1b de 7b 17 03 03 00 19  |..'./..W..{.....|
+00000040  18 06 7d aa 5c 93 a9 b3  d3 14 0b 76 78 a2 57 73  |..}.\......vx.Ws|
+00000050  2f a3 4f 66 c4 b3 ee 21  95                       |/.Of...!.|
 >>> Flow 15 (client to server)
-00000000  15 03 03 00 12 33 e5 90  b6 f4 60 f4 da 3f f5 c4  |.....3....`..?..|
-00000010  5c a1 a1 75 01 04 8a                              |\..u...|
+00000000  15 03 03 00 12 55 f7 2f  b2 a2 e7 59 6c f6 a9 2d  |.....U./...Yl..-|
+00000010  d1 17 88 01 49 c6 f2                              |....I..|
diff --git a/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateTwiceRejected b/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateTwiceRejected
index f9a7a11..441fa0f 100644
--- a/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateTwiceRejected
+++ b/libgo/go/crypto/tls/testdata/Client-TLSv12-RenegotiateTwiceRejected
@@ -16,11 +16,11 @@
 000000e0  e5 7d a3 47 cd 62 43 15  28 da ac 5f bb 29 07 30  |.}.G.bC.(.._.).0|
 000000f0  ff f6 84 af c4 cf c2 ed  90 99 5f 58 cb 3b 74     |.........._X.;t|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 59 02 00 00  55 03 03 52 6a c1 e9 3d  |....Y...U..Rj..=|
-00000010  5e 12 f4 95 42 33 5e 56  98 6b e5 b9 c0 e2 b4 02  |^...B3^V.k......|
-00000020  3e 99 0c 26 52 66 69 35  ef 4a 66 20 bb ee b5 86  |>..&Rfi5.Jf ....|
-00000030  ec 40 54 e7 ef 93 8e cd  e4 bd c2 57 e7 2b d3 86  |.@T........W.+..|
-00000040  44 93 8f 4f 3a e3 4d eb  53 88 b0 43 cc a8 00 00  |D..O:.M.S..C....|
+00000000  16 03 03 00 59 02 00 00  55 03 03 bb ec 39 c5 f2  |....Y...U....9..|
+00000010  dd a8 26 56 80 09 60 f5  d8 0a 93 6d 08 c4 30 c2  |..&V..`....m..0.|
+00000020  cf 0c 44 86 49 a3 19 84  20 38 98 20 0d 8b 81 b5  |..D.I... 8. ....|
+00000030  a7 42 37 27 1b 9c be 36  8f 9b 49 31 4f 73 67 a7  |.B7'...6..I1Osg.|
+00000040  78 9f 46 e5 9e 3b 45 ff  e9 16 11 ca cc a8 00 00  |x.F..;E.........|
 00000050  0d ff 01 00 01 00 00 0b  00 04 03 00 01 02 16 03  |................|
 00000060  03 02 59 0b 00 02 55 00  02 52 00 02 4f 30 82 02  |..Y...U..R..O0..|
 00000070  4b 30 82 01 b4 a0 03 02  01 02 02 09 00 e8 f0 9d  |K0..............|
@@ -60,188 +60,188 @@
 00000290  77 8d 0c 1c f1 0f a1 d8  40 83 61 c9 4c 72 2b 9d  |w.......@.a.Lr+.|
 000002a0  ae db 46 06 06 4d f4 c1  b3 3e c0 d1 bd 42 d4 db  |..F..M...>...B..|
 000002b0  fe 3d 13 60 84 5c 21 d3  3b e9 fa e7 16 03 03 00  |.=.`.\!.;.......|
-000002c0  ac 0c 00 00 a8 03 00 1d  20 dc 94 bc ee 1b 36 ac  |........ .....6.|
-000002d0  13 5f 6a b8 12 89 3b 05  8f 76 cf 1e 9c 20 2e 75  |._j...;..v... .u|
-000002e0  7c a4 f4 23 7f 74 72 97  74 08 04 00 80 b9 22 bb  ||..#.tr.t.....".|
-000002f0  8e 21 42 cd 1e 68 2c 47  f0 b1 7f 2d 26 ac 7b a6  |.!B..h,G...-&.{.|
-00000300  10 b0 a7 72 31 99 ce be  5e e3 a5 c0 18 a6 18 50  |...r1...^......P|
-00000310  d8 98 9c 0a f5 15 0f db  be 76 50 4b 09 8d f0 94  |.........vPK....|
-00000320  a3 48 23 7b d0 13 5e 2c  71 c1 8b e4 56 2b 69 88  |.H#{..^,q...V+i.|
-00000330  88 78 b4 b7 7c 0f 29 6c  73 21 b3 e5 26 a5 10 04  |.x..|.)ls!..&...|
-00000340  23 93 77 06 81 ff 23 df  06 be 82 4e ac 42 80 10  |#.w...#....N.B..|
-00000350  ea db 84 f9 96 98 8e bb  bf ab b4 b6 fc 21 88 02  |.............!..|
-00000360  49 cb a3 4c 89 ee 19 cb  4d 71 6f fc 37 16 03 03  |I..L....Mqo.7...|
+000002c0  ac 0c 00 00 a8 03 00 1d  20 2f ad 87 a5 c9 9e c7  |........ /......|
+000002d0  f6 f1 05 9a 44 97 57 34  6b 3a 30 54 4c 0e 47 5e  |....D.W4k:0TL.G^|
+000002e0  16 d3 c9 c2 25 a8 47 e5  63 08 04 00 80 9f 54 b4  |....%.G.c.....T.|
+000002f0  c1 aa bb 15 07 5c b1 52  ef bd 26 fa ec ce 70 31  |.....\.R..&...p1|
+00000300  90 fb f5 4d d2 26 0c 64  6f b3 9f 7f 27 c7 a5 b2  |...M.&.do...'...|
+00000310  d1 6d cf 0e 9c 91 e3 c4  20 f7 e3 ae 95 ff 6d ce  |.m...... .....m.|
+00000320  80 b5 30 89 6c a2 dd 31  26 5b 24 19 7a 30 f7 43  |..0.l..1&[$.z0.C|
+00000330  71 a8 e9 1a 27 ee 46 86  44 56 b1 f3 2e e1 bd d5  |q...'.F.DV......|
+00000340  79 99 34 0c 9b 01 e6 bb  0f ad 96 4a 68 0f 10 79  |y.4........Jh..y|
+00000350  e9 91 7f 06 e6 02 32 ba  8c b6 a2 0c 4b 6d 09 f6  |......2.....Km..|
+00000360  28 8f 94 e8 10 e1 ca 48  6c de 56 c2 5c 16 03 03  |(......Hl.V.\...|
 00000370  00 04 0e 00 00 00                                 |......|
 >>> Flow 3 (client to server)
 00000000  16 03 03 00 25 10 00 00  21 20 2f e5 7d a3 47 cd  |....%...! /.}.G.|
 00000010  62 43 15 28 da ac 5f bb  29 07 30 ff f6 84 af c4  |bC.(.._.).0.....|
 00000020  cf c2 ed 90 99 5f 58 cb  3b 74 14 03 03 00 01 01  |....._X.;t......|
-00000030  16 03 03 00 20 6e 65 ea  6e 03 fb f9 4e 00 8f d1  |.... ne.n...N...|
-00000040  99 24 83 3a 38 ef 28 7b  16 43 70 b5 af 0d de 37  |.$.:8.({.Cp....7|
-00000050  cd bf ac 83 09                                    |.....|
+00000030  16 03 03 00 20 d5 77 86  8e 32 60 6b 0f 0f 36 33  |.... .w..2`k..63|
+00000040  89 fe 51 b8 69 3a 1f 37  b3 d1 eb 43 ab e0 f6 db  |..Q.i:.7...C....|
+00000050  8b 9d 3c 0d 9a                                    |..<..|
 >>> Flow 4 (server to client)
-00000000  14 03 03 00 01 01 16 03  03 00 20 ef 39 04 ca 70  |.......... .9..p|
-00000010  71 ee f8 1b 72 10 b7 6a  89 cd 85 ee a4 81 a4 87  |q...r..j........|
-00000020  88 1b c7 5b 18 d9 95 fe  31 d9 c8                 |...[....1..|
+00000000  14 03 03 00 01 01 16 03  03 00 20 ed 78 35 a3 71  |.......... .x5.q|
+00000010  34 a9 40 b2 be 15 dc a9  10 86 e0 de 94 23 e9 51  |4.@..........#.Q|
+00000020  2c 01 1e 34 19 07 53 20  59 ac f9                 |,..4..S Y..|
 >>> Flow 5 (client to server)
-00000000  17 03 03 00 16 58 8c 23  1b 8d 7f 44 92 a4 5d 88  |.....X.#...D..].|
-00000010  3e ee 7c 98 90 14 b4 61  e9 5c ea                 |>.|....a.\.|
+00000000  17 03 03 00 16 f3 a2 5f  da 1c 09 70 76 af 14 83  |......._...pv...|
+00000010  e5 7f 6f c9 9a 61 7f d9  e6 86 3c                 |..o..a....<|
 >>> Flow 6 (server to client)
-00000000  16 03 03 00 14 32 2b 55  14 4a 65 21 51 b0 72 e0  |.....2+U.Je!Q.r.|
-00000010  4c 57 b0 b1 78 0b e3 30  de                       |LW..x..0.|
+00000000  16 03 03 00 14 71 23 15  46 93 87 94 38 01 d0 1b  |.....q#.F...8...|
+00000010  1a 34 db 58 17 d0 ac 62  87                       |.4.X...b.|
 >>> Flow 7 (client to server)
-00000000  16 03 03 01 16 ff 7a 5b  80 e0 cd 83 55 3d b5 97  |......z[....U=..|
-00000010  60 d2 51 1e 75 d2 5d b9  ea 2a 5f 67 43 03 7c 50  |`.Q.u.]..*_gC.|P|
-00000020  25 5d a2 81 5f fa 0f be  08 9d 80 ac 73 16 bc 64  |%].._.......s..d|
-00000030  51 54 33 09 cc 05 90 24  c0 ee 99 a9 d1 8f 1b 3e  |QT3....$.......>|
-00000040  9f 6a e8 b6 83 b0 30 fe  e6 6b 6e 37 dd 95 95 30  |.j....0..kn7...0|
-00000050  64 46 c7 fc 15 54 84 ef  3d 1a 28 2d ee 3b aa 19  |dF...T..=.(-.;..|
-00000060  60 21 f9 d1 98 04 b4 0f  08 79 34 1f aa 12 2e 60  |`!.......y4....`|
-00000070  93 ff 87 16 56 55 24 c7  96 00 3b c2 72 7f 9d 96  |....VU$...;.r...|
-00000080  8b b7 2b 50 8f 99 df f5  4c 6a 42 0a cc 2f 27 f2  |..+P....LjB../'.|
-00000090  88 6d 42 e3 20 c8 1f 01  2b fb e9 b3 aa f3 2f 02  |.mB. ...+...../.|
-000000a0  fa 78 34 38 00 0f 1d f9  c7 5a 08 ae 56 19 c2 6c  |.x48.....Z..V..l|
-000000b0  0b b0 d1 40 0d 0e 57 d2  00 be 3d 65 9c c1 86 00  |...@..W...=e....|
-000000c0  4c a5 1b a6 67 4d 39 cd  ba fe 96 3c c5 25 dd 43  |L...gM9....<.%.C|
-000000d0  7b 49 f0 b5 8a 66 46 d4  65 6b 2d da 55 13 14 48  |{I...fF.ek-.U..H|
-000000e0  76 c8 2c 3d a4 4d 7a 14  1e 70 32 06 b3 96 cd 4e  |v.,=.Mz..p2....N|
-000000f0  bd 4f 06 a8 83 ae 30 83  b6 6b 61 2e 08 73 0e 14  |.O....0..ka..s..|
-00000100  08 13 3d f0 7c ec cf 78  ff b4 25 21 15 5e 80 14  |..=.|..x..%!.^..|
-00000110  80 4f af c7 9e 44 04 33  da cb 27                 |.O...D.3..'|
+00000000  16 03 03 01 16 46 70 b5  5f 98 fc af a8 cb d6 7c  |.....Fp._......||
+00000010  8c 1e 60 c3 68 25 20 7b  95 9a 0c 04 b3 2c 52 b2  |..`.h% {.....,R.|
+00000020  30 f9 db cf 64 48 0a 46  9b 7a 11 76 11 5c 22 0c  |0...dH.F.z.v.\".|
+00000030  ef fa e6 6e a1 90 29 b3  64 aa ff 4d cb 7d 4d 91  |...n..).d..M.}M.|
+00000040  c0 05 99 a0 3d 25 b2 1e  7c c4 d2 94 6b bf f0 f7  |....=%..|...k...|
+00000050  0f 6a 3b 4c 66 c7 8a 26  9e 4f 79 68 50 5c f9 92  |.j;Lf..&.OyhP\..|
+00000060  97 e1 a5 86 aa f2 e9 d5  8a a1 96 a7 37 82 71 7d  |............7.q}|
+00000070  7d 7e b6 77 a3 3d 84 40  58 0d 66 cd 52 6c 9b 18  |}~.w.=.@X.f.Rl..|
+00000080  e2 c4 f0 dc 3d 9e 0e b8  49 ca 64 f3 71 c5 24 34  |....=...I.d.q.$4|
+00000090  e7 ca c3 87 f6 b9 2c 6a  95 12 4d 9d 4a 4d fe 8a  |......,j..M.JM..|
+000000a0  51 16 6e c9 00 64 c0 d1  da ae e6 14 66 d2 a8 80  |Q.n..d......f...|
+000000b0  35 ae 86 f6 64 f8 56 87  8a 40 46 43 ae d1 d1 fb  |5...d.V..@FC....|
+000000c0  64 1d 00 a1 3d e9 d9 7a  b5 fb 71 2a db 76 5a 74  |d...=..z..q*.vZt|
+000000d0  03 c3 79 df e6 90 e9 7e  de f9 0e 70 7a 65 3c 68  |..y....~...pze<h|
+000000e0  4f 2e c0 b8 13 e6 9d 1b  86 b8 65 57 fa dc 46 a7  |O.........eW..F.|
+000000f0  26 ba c3 64 fa b3 6f d5  e8 98 1f 10 d5 a5 1f 3e  |&..d..o........>|
+00000100  cc f9 8d a6 56 37 0d ff  92 8f 1b 36 b3 3d 0b f5  |....V7.....6.=..|
+00000110  5b fb fb 1e 4d c8 cb 84  39 5b 87                 |[...M...9[.|
 >>> Flow 8 (server to client)
-00000000  16 03 03 00 81 f5 0b a1  9d 19 be 84 54 fd 42 47  |............T.BG|
-00000010  d9 4e f8 35 02 91 06 7e  53 5c ea 64 8b c4 34 ac  |.N.5...~S\.d..4.|
-00000020  f9 93 54 36 5d 13 d0 0d  75 9f 8f 22 20 70 17 45  |..T6]...u.." p.E|
-00000030  37 a9 ed c2 34 23 8b bc  c8 87 5f a2 ff 9c 54 48  |7...4#...._...TH|
-00000040  1b d4 85 60 39 4b 53 75  6f 65 d0 33 a7 b6 90 7d  |...`9KSuoe.3...}|
-00000050  4f 84 28 cc 59 ab af bd  85 4b 40 ed 72 ff 30 c6  |O.(.Y....K@.r.0.|
-00000060  a5 01 8b fa 03 52 7e 0d  a8 5d 86 89 9b 4e c4 05  |.....R~..]...N..|
-00000070  83 fb d4 aa f9 13 8b 06  b1 2b 89 82 12 d2 a3 e2  |.........+......|
-00000080  79 d6 6a 07 ef a0 16 03  03 02 69 65 b4 cc 90 43  |y.j.......ie...C|
-00000090  f7 6f 92 59 1b 47 32 e4  51 be 16 8c bb 7b ef 68  |.o.Y.G2.Q....{.h|
-000000a0  60 38 9c 5f 5a f6 04 da  78 1d 4e 89 a7 e9 5b e0  |`8._Z...x.N...[.|
-000000b0  27 7d 82 fa 6f 44 df 5d  59 b3 5b 4c 01 76 3e bd  |'}..oD.]Y.[L.v>.|
-000000c0  d7 b5 0b 9a 9d be d4 ec  03 9d e5 a5 e0 e2 f2 a3  |................|
-000000d0  7f b2 87 ed 09 46 b2 e1  6a e2 39 e9 82 0d fb 62  |.....F..j.9....b|
-000000e0  a4 ef 1e 29 75 96 68 da  f9 8d 75 86 df 0c 57 9c  |...)u.h...u...W.|
-000000f0  48 e9 3e de 16 ab 22 b2  6d 37 38 d6 33 44 bd 38  |H.>...".m78.3D.8|
-00000100  16 2c 49 1c 2c 17 1a 28  05 45 eb 65 44 4e 1a 02  |.,I.,..(.E.eDN..|
-00000110  fc 2f 5c c9 e8 d8 16 e6  4f 5f f4 bd b4 d7 ec 73  |./\.....O_.....s|
-00000120  2f d1 f5 5b 68 69 b6 6a  59 8e 0b 24 2d 7c 69 96  |/..[hi.jY..$-|i.|
-00000130  a6 99 66 3e 38 25 82 30  ba 1a b5 b9 66 23 ea 60  |..f>8%.0....f#.`|
-00000140  b6 30 5e f5 29 80 8a 75  fc 96 f0 af 3d d2 8e 83  |.0^.)..u....=...|
-00000150  5e 00 fc 76 1c 69 cc 2b  e8 d2 70 21 95 65 da 2c  |^..v.i.+..p!.e.,|
-00000160  ed c3 fd a4 31 de 00 e5  3a b1 81 38 fc 68 da 0f  |....1...:..8.h..|
-00000170  b0 8c 32 f4 67 08 ed 31  0d fc e1 9b 20 8c 79 99  |..2.g..1.... .y.|
-00000180  bd 52 e6 eb 27 04 a5 94  1c e9 a0 5a 18 bf 7b 59  |.R..'......Z..{Y|
-00000190  22 e6 5c 63 84 2f 0a f6  ef b8 c9 c0 cf 82 0d 07  |".\c./..........|
-000001a0  42 66 65 0b d5 5e ea 27  0d f9 de 7e 13 a9 c2 b5  |Bfe..^.'...~....|
-000001b0  ea e2 22 4f a0 13 dc 12  69 9a ec ed d4 44 b2 bc  |.."O....i....D..|
-000001c0  88 65 09 ea 50 ca d6 48  c2 f2 12 9e b3 ab 29 c5  |.e..P..H......).|
-000001d0  61 72 3d 0e 77 bd 96 d9  ff 24 4d 7f 4d 22 e0 67  |ar=.w....$M.M".g|
-000001e0  54 02 18 42 e7 78 0c 18  28 89 24 a8 4a a1 cc 70  |T..B.x..(.$.J..p|
-000001f0  a2 a1 4f ee a0 b6 1f 7e  cb 9b 20 95 1f 10 63 60  |..O....~.. ...c`|
-00000200  df fe ce 37 9e 9e ce ff  fa 49 4f 4c 5b c0 f6 35  |...7.....IOL[..5|
-00000210  b7 eb e1 ac 85 64 11 6e  83 61 6f da d9 e9 09 a6  |.....d.n.ao.....|
-00000220  10 eb c2 da 62 9c ac e0  2e 0a ff 21 2e f7 94 6d  |....b......!...m|
-00000230  a6 56 f9 1c 39 52 f3 c7  29 a9 d6 b2 8c a9 4f bf  |.V..9R..).....O.|
-00000240  62 c8 74 cb 80 3d 3e 4d  d1 25 4c 29 14 21 cd 13  |b.t..=>M.%L).!..|
-00000250  b0 92 5a ca 9b 10 f6 4c  91 6e f7 c3 55 5e 0e f0  |..Z....L.n..U^..|
-00000260  e2 8f 2f 65 f9 b8 c2 43  0c 38 45 86 22 15 ed 8f  |../e...C.8E."...|
-00000270  6b 49 ff 45 e5 59 b7 54  f8 c9 d3 b0 f6 71 82 7b  |kI.E.Y.T.....q.{|
-00000280  7d 52 be 6c 33 f2 27 5c  f8 33 96 05 64 fa b2 b9  |}R.l3.'\.3..d...|
-00000290  ae 74 23 91 46 6f 9b 42  5b 96 1c c4 1c f4 5e b0  |.t#.Fo.B[.....^.|
-000002a0  c7 78 0f f3 da d3 01 ae  25 6c c1 10 31 47 e9 0d  |.x......%l..1G..|
-000002b0  84 27 5d 5a 23 35 07 3c  2d ea e8 dc cd d3 c6 85  |.']Z#5.<-.......|
-000002c0  86 ff 48 07 b8 97 d5 c5  10 f4 47 46 af 87 d9 03  |..H.......GF....|
-000002d0  24 3d b0 80 33 46 2a 4d  15 77 5c 21 3c a4 13 99  |$=..3F*M.w\!<...|
-000002e0  6c 9e ce 69 81 2e 90 c9  ba 9a 95 91 30 cc 8d 9b  |l..i........0...|
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+000002d0  67 c6 eb cc 77 57 2c 55  85 dc f9 9f 6f 19 7a d0  |g...wW,U....o.z.|
+000002e0  a0 45 17 b9 8c e4 19 46  ef dc 28 e1 e7 87 93 e0  |.E.....F..(.....|
+000002f0  c5 83 70 28 23 90 b9 c2  53 a3 67 d8 09 1f 47 0e  |..p(#...S.g...G.|
+00000300  a3 de bf a3 07 2d e7 3b  a5 e9 11 c4 30 59 fb cd  |.....-.;....0Y..|
+00000310  5d 6a d0 47 6f 43 a4 bd  2f 56 67 7d b2 c8 f5 2a  |]j.GoC../Vg}...*|
+00000320  9b ce ea 10 ec 83 f8 bc  87 19 c8 97 a9 ee 80 3c  |...............<|
+00000330  cb de 1a 22 60 ed 77 f7  57 5f 20 54 62 ca b0 e7  |..."`.w.W_ Tb...|
+00000340  75 a0 ba fc 32 14 03 03  00 11 86 a9 6a 14 1a 4c  |u...2.......j..L|
+00000350  1d 21 1f 3c c2 19 85 02  88 f5 f6 16 03 03 00 20  |.!.<........... |
+00000360  03 f9 fc ed cf 15 ed 86  d2 69 49 d7 e2 01 06 96  |.........iI.....|
+00000370  42 74 89 3f bf 98 56 0f  c1 1b 61 b6 36 3b ae 87  |Bt.?..V...a.6;..|
 >>> Flow 10 (server to client)
-00000000  14 03 03 00 11 bb 91 ed  b9 75 be 6c 2c b8 7c 57  |.........u.l,.|W|
-00000010  0b 44 2e 6d 68 4a 16 03  03 00 20 49 17 51 ce 23  |.D.mhJ.... I.Q.#|
-00000020  ff 71 ad f5 45 75 01 43  4d d2 f8 08 d8 e5 4d d7  |.q..Eu.CM.....M.|
-00000030  1c 35 5e 8b 18 54 e5 f6  0c b5 2e 17 03 03 00 19  |.5^..T..........|
-00000040  ec 43 1a 6d 9e fb 53 cd  55 1a 72 2e da d1 ea 58  |.C.m..S.U.r....X|
-00000050  66 17 a9 1c be fc d9 72  dd 16 03 03 00 14 c2 98  |f......r........|
-00000060  a4 ac d5 0c a2 10 61 8b  55 3a 69 b6 26 33 4f fe  |......a.U:i.&3O.|
-00000070  2d 42                                             |-B|
+00000000  14 03 03 00 11 00 e4 ef  62 c1 c0 72 f3 98 4d 5a  |........b..r..MZ|
+00000010  6a c8 7e 29 92 b8 16 03  03 00 20 ff 7e fc cb b5  |j.~)...... .~...|
+00000020  07 5f ea 8a 89 2a 46 1b  c6 33 41 fe f9 f4 1e 3a  |._...*F..3A....:|
+00000030  9d 8b 1d 8f 9b 7b 89 07  b4 e8 59 17 03 03 00 19  |.....{....Y.....|
+00000040  a3 ba 0c 9b 54 cd 59 6a  e1 db 33 80 38 a9 95 a1  |....T.Yj..3.8...|
+00000050  95 5b a5 5f ad 3c d0 52  f7 16 03 03 00 14 e6 22  |.[._.<.R......."|
+00000060  84 a7 02 10 1e ee 58 88  a5 b8 e8 bf 0a 9b 61 46  |......X.......aF|
+00000070  0c ae                                             |..|
 >>> Flow 11 (client to server)
-00000000  15 03 03 00 12 d4 c8 e4  36 30 00 40 d1 d5 9a 9d  |........60.@....|
-00000010  3c 2d eb 4f e0 6e a3 15  03 03 00 12 4d b6 67 e4  |<-.O.n......M.g.|
-00000020  02 d0 89 50 ef 4b 8a 1f  49 f2 f0 14 b6 7e        |...P.K..I....~|
+00000000  15 03 03 00 12 7f 90 91  7b 93 4e 24 25 5e cb 35  |........{.N$%^.5|
+00000010  2c eb ee 29 6a b3 a3 15  03 03 00 12 3d b7 30 fe  |,..)j.......=.0.|
+00000020  63 90 c3 2d 17 a0 e1 ed  8d bb a4 f6 f6 17        |c..-..........|
diff --git a/libgo/go/crypto/tls/testdata/Client-TLSv13-ALPN b/libgo/go/crypto/tls/testdata/Client-TLSv13-ALPN
index f2ca5ac..0ac9b36 100644
--- a/libgo/go/crypto/tls/testdata/Client-TLSv13-ALPN
+++ b/libgo/go/crypto/tls/testdata/Client-TLSv13-ALPN
@@ -1,5 +1,5 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 01 12 01 00 01  0e 03 03 00 00 00 00 00  |................|
+00000000  16 03 01 01 0e 01 00 01  0a 03 03 00 00 00 00 00  |................|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 00 00 00 00 00  00 00 00 20 00 00 00 00  |........... ....|
 00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
@@ -7,87 +7,87 @@
 00000050  cc a9 c0 2f c0 2b c0 30  c0 2c c0 27 c0 13 c0 23  |.../.+.0.,.'...#|
 00000060  c0 09 c0 14 c0 0a 00 9c  00 9d 00 3c 00 2f 00 35  |...........<./.5|
 00000070  c0 12 00 0a 00 05 c0 11  c0 07 13 01 13 03 13 02  |................|
-00000080  01 00 00 93 33 74 00 00  00 05 00 05 01 00 00 00  |....3t..........|
-00000090  00 00 0a 00 0a 00 08 00  1d 00 17 00 18 00 19 00  |................|
-000000a0  0b 00 02 01 00 00 0d 00  1a 00 18 08 04 04 03 08  |................|
-000000b0  07 08 05 08 06 04 01 05  01 06 01 05 03 06 03 02  |................|
-000000c0  01 02 03 ff 01 00 01 00  00 10 00 10 00 0e 06 70  |...............p|
-000000d0  72 6f 74 6f 32 06 70 72  6f 74 6f 31 00 12 00 00  |roto2.proto1....|
-000000e0  00 2b 00 09 08 03 04 03  03 03 02 03 01 00 33 00  |.+............3.|
-000000f0  26 00 24 00 1d 00 20 2f  e5 7d a3 47 cd 62 43 15  |&.$... /.}.G.bC.|
-00000100  28 da ac 5f bb 29 07 30  ff f6 84 af c4 cf c2 ed  |(.._.).0........|
-00000110  90 99 5f 58 cb 3b 74                              |.._X.;t|
+00000080  01 00 00 8f 00 05 00 05  01 00 00 00 00 00 0a 00  |................|
+00000090  0a 00 08 00 1d 00 17 00  18 00 19 00 0b 00 02 01  |................|
+000000a0  00 00 0d 00 1a 00 18 08  04 04 03 08 07 08 05 08  |................|
+000000b0  06 04 01 05 01 06 01 05  03 06 03 02 01 02 03 ff  |................|
+000000c0  01 00 01 00 00 10 00 10  00 0e 06 70 72 6f 74 6f  |...........proto|
+000000d0  32 06 70 72 6f 74 6f 31  00 12 00 00 00 2b 00 09  |2.proto1.....+..|
+000000e0  08 03 04 03 03 03 02 03  01 00 33 00 26 00 24 00  |..........3.&.$.|
+000000f0  1d 00 20 2f e5 7d a3 47  cd 62 43 15 28 da ac 5f  |.. /.}.G.bC.(.._|
+00000100  bb 29 07 30 ff f6 84 af  c4 cf c2 ed 90 99 5f 58  |.).0.........._X|
+00000110  cb 3b 74                                          |.;t|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 7a 02 00 00  76 03 03 9a f4 f5 6b ec  |....z...v.....k.|
-00000010  37 69 ea a2 43 05 46 fe  dd 55 27 2e 78 cb f6 cc  |7i..C.F..U'.x...|
-00000020  96 ea fd 68 98 bb 3e 9d  75 ad 6e 20 00 00 00 00  |...h..>.u.n ....|
+00000000  16 03 03 00 7a 02 00 00  76 03 03 23 c5 c4 0c 4a  |....z...v..#...J|
+00000010  d2 5f 0b f6 ea 21 7a d1  a0 7d 21 26 b5 a3 94 ca  |._...!z..}!&....|
+00000020  91 6c 13 58 60 4f 39 cc  1a f7 c0 20 00 00 00 00  |.l.X`O9.... ....|
 00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000040  00 00 00 00 00 00 00 00  00 00 00 00 13 01 00 00  |................|
-00000050  2e 00 2b 00 02 03 04 00  33 00 24 00 1d 00 20 04  |..+.....3.$... .|
-00000060  67 13 de c7 ca 6c 02 d8  ee c4 80 d8 43 c2 ef 3e  |g....l......C..>|
-00000070  94 e1 51 d6 bf c7 1f 0c  4a b0 af 7f 91 a5 61 14  |..Q.....J.....a.|
-00000080  03 03 00 01 01 17 03 03  00 24 3f 87 40 f6 93 e3  |.........$?.@...|
-00000090  c9 cb 6e 83 75 c5 2f e3  af 0f 84 9a 3b 88 ad cc  |..n.u./.....;...|
-000000a0  99 c9 1b a8 26 e0 14 d4  ab fe 50 5f ad 79 17 03  |....&.....P_.y..|
-000000b0  03 02 6d 67 86 8e eb e3  15 65 21 e5 2f aa 8d c7  |..mg.....e!./...|
-000000c0  d5 34 6a b6 d3 ab 5f 96  f6 b2 79 b0 bc 3e f7 9c  |.4j..._...y..>..|
-000000d0  5d 8d 62 50 91 35 e1 7d  fe 61 9b 8c 9d e1 4a 7f  |].bP.5.}.a....J.|
-000000e0  54 4b ad c5 35 3d c9 05  d1 b0 6c 3f b2 c4 f7 75  |TK..5=....l?...u|
-000000f0  57 84 50 62 8d 50 80 be  b6 71 b8 59 02 52 5d 55  |W.Pb.P...q.Y.R]U|
-00000100  70 5e 76 61 77 d9 d1 f6  20 d1 d9 bf e2 03 16 1e  |p^vaw... .......|
-00000110  eb 1c 55 85 48 8d 43 72  56 2a d2 16 fc a3 cc 94  |..U.H.CrV*......|
-00000120  08 6d a8 73 55 9d a8 0c  36 da f4 02 c9 23 7b d5  |.m.sU...6....#{.|
-00000130  06 e7 63 63 a1 fa 80 1c  ca 77 d3 ee 4a f8 61 31  |..cc.....w..J.a1|
-00000140  4b 1c d6 8c f3 86 d3 16  ba fe 1c ff 5a f6 fa fc  |K...........Z...|
-00000150  d6 c7 ab b6 5a db 51 f3  cc 42 f0 65 b6 8f f3 d7  |....Z.Q..B.e....|
-00000160  44 5a e7 1e a9 d4 a7 bd  cd 20 bf a1 13 f1 b5 29  |DZ....... .....)|
-00000170  91 a4 28 78 f5 b6 c2 09  a5 95 e5 98 ab c9 f4 4b  |..(x...........K|
-00000180  10 da eb 07 ff 46 44 f9  85 f6 4f 78 5c b0 fa 2d  |.....FD...Ox\..-|
-00000190  0b 3b 79 3f 11 a2 eb 12  96 a3 01 ac 13 d3 65 cc  |.;y?..........e.|
-000001a0  98 e8 c9 8c c3 c6 c9 09  aa f6 af 01 1e e5 30 40  |..............0@|
-000001b0  40 88 44 26 ee 49 91 68  18 56 b9 ce 22 f6 80 ff  |@.D&.I.h.V.."...|
-000001c0  32 d0 ee 15 e3 8a 96 c0  e5 47 51 c1 7f 70 e1 fc  |2........GQ..p..|
-000001d0  3a 44 1a 36 b9 e7 ee f0  9c 4e 62 1f 78 2f cc dd  |:D.6.....Nb.x/..|
-000001e0  62 a3 3b 9b ae d1 34 ea  7f d7 dc b4 c5 2c d7 96  |b.;...4......,..|
-000001f0  61 59 0b ed de cc 70 68  06 2c 93 3d a9 9f 0a 9b  |aY....ph.,.=....|
-00000200  46 0d 39 fa b0 db 7f 9b  c1 80 c8 55 35 bb 10 4c  |F.9........U5..L|
-00000210  2d 8f 88 ae 94 bf 4a 5f  3b f5 95 e7 7a 47 e2 0e  |-.....J_;...zG..|
-00000220  19 b2 e7 69 f5 bb c0 08  9d e8 5e 23 f0 85 12 c0  |...i......^#....|
-00000230  01 cf 7a 87 19 b1 98 97  8d 5a 19 5c 37 52 0b a7  |..z......Z.\7R..|
-00000240  45 e8 8f 9b 0c 76 5f a6  5b d9 45 87 5b 6e 0e db  |E....v_.[.E.[n..|
-00000250  6a 6a e2 b2 1d f9 e6 31  13 09 8c 32 93 43 46 17  |jj.....1...2.CF.|
-00000260  15 45 c8 26 7f f2 23 7b  b1 da c4 20 56 59 4b c9  |.E.&..#{... VYK.|
-00000270  3e 90 a6 77 ea 28 ea 05  74 b8 04 55 68 7a 60 91  |>..w.(..t..Uhz`.|
-00000280  b7 8e 7d 96 11 ac 2d af  f2 26 c5 03 99 57 80 a7  |..}...-..&...W..|
-00000290  80 1f 6f ce fd 0e 81 af  2e d6 b0 6b 7c 4c 71 02  |..o........k|Lq.|
-000002a0  4c 56 fc e9 0a 58 56 5e  4d fd 2d ea e8 ae d5 b7  |LV...XV^M.-.....|
-000002b0  cf aa 66 48 a9 42 76 59  81 52 18 cf c4 6d d8 8c  |..fH.BvY.R...m..|
-000002c0  90 e3 57 28 53 43 5e ae  cd 33 ac 64 e2 ff 65 17  |..W(SC^..3.d..e.|
-000002d0  11 e2 6a 07 aa 57 40 63  90 51 11 43 9f 9e 6d 56  |..j..W@c.Q.C..mV|
-000002e0  69 c2 44 bb f9 83 84 79  bf 98 be 62 e8 20 6e cc  |i.D....y...b. n.|
-000002f0  69 a9 c4 33 de 40 d5 e9  95 12 87 d5 28 24 05 62  |i..3.@......($.b|
-00000300  ca b8 c2 bd d9 96 dc 16  03 c8 7d 9c 7a 83 de 55  |..........}.z..U|
-00000310  3b 4f 90 7b af 36 9a a7  80 46 c5 76 14 70 6c f4  |;O.{.6...F.v.pl.|
-00000320  17 03 03 00 99 6e 39 2c  0d 81 12 85 c2 1c 42 56  |.....n9,......BV|
-00000330  6a 3a e2 04 60 af 78 13  20 d2 b5 b2 58 9e 2f b9  |j:..`.x. ...X./.|
-00000340  f8 11 4f 52 cd 31 c3 a1  ec 83 bd 2e ea 9a 53 6b  |..OR.1........Sk|
-00000350  55 99 a6 8a 25 1c f7 b6  83 4e 9f 1e 5d c5 b2 b2  |U...%....N..]...|
-00000360  a5 6b ea 87 96 0e 29 5b  a4 24 f2 16 4c ad e1 9b  |.k....)[.$..L...|
-00000370  24 d2 95 7e 74 37 44 1a  d7 83 f5 4c 28 3f 3d 92  |$..~t7D....L(?=.|
-00000380  a7 6f 6e 70 1c 27 93 19  64 ee 61 dc 81 35 67 c8  |.onp.'..d.a..5g.|
-00000390  f3 e6 de b0 8f 32 6c df  b1 66 97 6b b9 4a 81 f0  |.....2l..f.k.J..|
-000003a0  cd 3a b4 56 14 e3 27 50  b0 f3 9b 63 05 a5 99 3a  |.:.V..'P...c...:|
-000003b0  26 d6 a5 3c e4 ea 8a 5a  04 5e fb de 86 bb 17 03  |&..<...Z.^......|
-000003c0  03 00 35 eb 5f 0f df 9f  e0 c7 4d b4 3d a6 c8 1a  |..5._.....M.=...|
-000003d0  df f1 f8 1e 36 ea ae 30  32 da 78 0e 00 fe d3 54  |....6..02.x....T|
-000003e0  cc 90 08 1a cb 92 1c 5f  f7 0a 3c f7 19 ed a3 3b  |......._..<....;|
-000003f0  cb fd 56 cb 4f 30 83 07                           |..V.O0..|
+00000050  2e 00 2b 00 02 03 04 00  33 00 24 00 1d 00 20 f9  |..+.....3.$... .|
+00000060  64 7e 54 8f 64 ec 3d 7c  17 f1 96 3c 44 ca cd d7  |d~T.d.=|...<D...|
+00000070  3d 92 02 06 5a f8 ab dc  f3 50 fe 5c ab 04 6b 14  |=...Z....P.\..k.|
+00000080  03 03 00 01 01 17 03 03  00 24 9f 15 ee 1e 43 26  |.........$....C&|
+00000090  31 53 01 8b a0 a7 e9 ac  96 51 a7 bc fe 46 6c 60  |1S.......Q...Fl`|
+000000a0  d1 8b c4 a9 34 cd 93 13  51 50 e9 02 f9 ce 17 03  |....4...QP......|
+000000b0  03 02 6d c3 ad 14 a8 d3  81 87 26 7d a0 60 57 2c  |..m.......&}.`W,|
+000000c0  d2 65 f5 a5 fc a8 c4 dd  2e e2 04 57 1f 94 a4 4a  |.e.........W...J|
+000000d0  3a 43 92 f4 f5 58 e9 11  d7 b1 62 0d d1 f4 d5 43  |:C...X....b....C|
+000000e0  4a c8 fa d9 28 18 ca 74  1a b2 39 e2 9b 95 40 0e  |J...(..t..9...@.|
+000000f0  63 ed 11 52 9b 61 36 0c  c3 a6 7b de 4d 68 48 55  |c..R.a6...{.MhHU|
+00000100  e2 05 e8 59 e1 df 51 08  06 a8 09 a0 d5 e7 14 e9  |...Y..Q.........|
+00000110  13 c6 a4 6d ff 7b b0 98  50 ef 81 1b 64 6f 44 c1  |...m.{..P...doD.|
+00000120  cd da 85 a0 80 0c da 54  90 8e a1 7d 4b 1d 16 fc  |.......T...}K...|
+00000130  40 ba e3 25 e3 c2 52 29  7a 23 50 2a 43 3f 7e 32  |@..%..R)z#P*C?~2|
+00000140  73 e0 5a a5 3f 09 b0 3a  b8 90 8b 36 06 ac fc ef  |s.Z.?..:...6....|
+00000150  e8 9c ba f3 fb 8e 2d ab  b3 c6 f4 d0 1d eb 7b 20  |......-.......{ |
+00000160  2b 68 1f e9 25 49 c9 2a  45 6e 2b a5 00 12 54 b2  |+h..%I.*En+...T.|
+00000170  a7 16 2f 00 72 d4 ed 7d  ea 7e cb b1 0a 03 c6 3b  |../.r..}.~.....;|
+00000180  b8 fe 97 59 6a b4 07 d3  2c b1 cc ca e8 46 24 97  |...Yj...,....F$.|
+00000190  d2 b8 a5 8e 7d 6f 78 7f  bd ee 7d 5a f6 ec 07 50  |....}ox...}Z...P|
+000001a0  00 c4 63 33 03 e5 09 44  c3 68 61 ec 5b 52 f8 67  |..c3...D.ha.[R.g|
+000001b0  66 60 fd 68 fe d7 b7 df  96 2c 1b 00 93 89 24 58  |f`.h.....,....$X|
+000001c0  20 2d 0a c1 c4 80 fc 03  8c 16 d1 83 11 a9 e7 70  | -.............p|
+000001d0  69 3f cf c2 dc 90 40 70  1a 1e d9 8e 36 02 61 57  |i?....@p....6.aW|
+000001e0  49 60 2d ba 59 76 fb 26  50 c8 db 82 b3 62 e5 d7  |I`-.Yv.&P....b..|
+000001f0  fb c6 91 9b 99 6e d2 d7  e1 8a da ec 87 e9 d8 71  |.....n.........q|
+00000200  3a 01 01 c9 9c da 3c 81  67 bc fb 30 0c 81 31 62  |:.....<.g..0..1b|
+00000210  c2 ff 1f ee db 27 e2 07  59 51 fb e2 64 89 e5 0e  |.....'..YQ..d...|
+00000220  0a 37 06 07 8a 96 34 b9  53 8d 0a ed 60 02 cb f5  |.7....4.S...`...|
+00000230  af b2 9c 77 27 2a 23 69  5f 58 cc 46 32 ab 76 df  |...w'*#i_X.F2.v.|
+00000240  1b c1 17 98 6e fb 9e 15  e0 7f e1 00 75 6d b2 cf  |....n.......um..|
+00000250  ce 6e dd 6c 00 b6 81 14  bb 06 60 b4 47 07 2a cf  |.n.l......`.G.*.|
+00000260  dc 87 72 07 7e 1d 76 fc  17 14 8a d7 5c 32 9b d2  |..r.~.v.....\2..|
+00000270  c6 45 24 d5 d0 ea a4 c6  b5 6e 63 fc c7 12 0c a7  |.E$......nc.....|
+00000280  0a 73 70 89 ce 3d 1f aa  d5 ad ba bc 16 e8 15 80  |.sp..=..........|
+00000290  14 16 84 f6 06 38 23 b7  21 ec 27 50 a8 76 cf 0c  |.....8#.!.'P.v..|
+000002a0  4f 58 f7 57 7f b3 bd 55  0c f4 53 6e 9f f4 f2 12  |OX.W...U..Sn....|
+000002b0  5b c4 e7 68 9c 17 8b 76  88 1e 42 1b 32 e0 81 4d  |[..h...v..B.2..M|
+000002c0  ce 16 73 59 74 bd 56 be  fd fe 42 21 07 bd f4 e9  |..sYt.V...B!....|
+000002d0  ff 83 f3 97 a8 9e d4 c6  3c 6f 43 9d 0b 3c dc 35  |........<oC..<.5|
+000002e0  29 e4 bd b1 75 a4 70 30  8d bd fa 25 74 6c 11 ea  |)...u.p0...%tl..|
+000002f0  44 38 b5 8f f9 7a 71 c6  f8 ea c7 2c 23 d2 29 6d  |D8...zq....,#.)m|
+00000300  dc 8f e5 f7 c6 80 3b 8d  47 da 19 da 28 26 26 e6  |......;.G...(&&.|
+00000310  0f 83 d5 e9 33 42 0b 21  f4 1c 48 c0 19 ed e6 84  |....3B.!..H.....|
+00000320  17 03 03 00 99 d6 56 fb  52 63 57 c0 61 ec 30 04  |......V.RcW.a.0.|
+00000330  0a ee 10 39 7b e4 6a 38  8b 29 9a 6c 40 88 1d a1  |...9{.j8.).l@...|
+00000340  8b 53 2b fe 47 66 75 70  5b 03 33 fc ca e6 4f 8d  |.S+.Gfup[.3...O.|
+00000350  f1 40 63 c2 24 97 b4 c8  dd b1 20 27 e0 28 03 7a  |.@c.$..... '.(.z|
+00000360  f1 cd b3 df 8a 93 39 fa  b9 f9 0e 62 4c 47 24 69  |......9....bLG$i|
+00000370  9a f3 a5 7b 0d 14 33 00  c3 ab ae 4a 46 c2 40 42  |...{..3....JF.@B|
+00000380  d7 36 c1 74 7a c6 1a 42  d2 e0 fe e6 4b 5c 96 1a  |.6.tz..B....K\..|
+00000390  24 05 13 2c ad aa 25 02  ae 1b 3a 87 a7 60 1c d4  |$..,..%...:..`..|
+000003a0  98 53 ee 33 e9 36 37 d0  97 c2 e9 2d b9 a0 ac 4f  |.S.3.67....-...O|
+000003b0  c8 82 d8 a4 28 2e e4 db  a1 8f 71 cb ee 28 17 03  |....(.....q..(..|
+000003c0  03 00 35 5d 41 7c b0 af  b5 49 e8 dc 8a 7f c8 1f  |..5]A|...I......|
+000003d0  af 70 8b c4 35 7b 7b 57  3a 49 f2 ef 75 4c 27 39  |.p..5{{W:I..uL'9|
+000003e0  bf a6 45 fd 9c 64 b2 6e  7c c0 d3 c0 c7 a6 25 2f  |..E..d.n|.....%/|
+000003f0  f7 48 6d 7c a4 33 ad 61                           |.Hm|.3.a|
 >>> Flow 3 (client to server)
-00000000  14 03 03 00 01 01 17 03  03 00 35 ec 05 98 86 f9  |..........5.....|
-00000010  a1 e4 14 c1 e2 85 17 62  f9 ff 5f 1f 53 8f 00 14  |.......b.._.S...|
-00000020  28 dd 31 bc 9a 7e 2d 54  53 c2 57 f0 24 0f e1 ca  |(.1..~-TS.W.$...|
-00000030  5e 17 07 bc 32 a5 72 3f  3e 90 dd be f1 a1 cc 6b  |^...2.r?>......k|
-00000040  17 03 03 00 17 93 58 dd  95 9a 88 82 3d 63 41 f7  |......X.....=cA.|
-00000050  ba da 0e 24 3f f2 b1 e5  db 83 2d bd 17 03 03 00  |...$?.....-.....|
-00000060  13 03 a4 42 58 3b d7 c5  c2 08 45 e5 c1 bc eb 47  |...BX;....E....G|
-00000070  b5 20 ea ce                                       |. ..|
+00000000  14 03 03 00 01 01 17 03  03 00 35 3e e7 50 e1 d1  |..........5>.P..|
+00000010  4d 9f 84 fe ca 83 c4 3b  a6 86 45 c2 7e e7 af 00  |M......;..E.~...|
+00000020  db e6 23 3c 06 b8 a3 1e  36 2e ab 45 7e d8 07 8c  |..#<....6..E~...|
+00000030  66 bf 5a 0f ff e6 3f 09  a4 d3 cf 74 1c d6 cf c7  |f.Z...?....t....|
+00000040  17 03 03 00 17 4c db af  a7 f3 73 b3 84 b9 a7 d1  |.....L....s.....|
+00000050  1c 2f cb 27 d8 ba 2c c6  84 48 88 18 17 03 03 00  |./.'..,..H......|
+00000060  13 a3 41 6f fb da f5 5a  4d 85 0c e0 ff 3a fb 91  |..Ao...ZM....:..|
+00000070  e2 5e ab 96                                       |.^..|
diff --git a/libgo/go/crypto/tls/testdata/Server-SSLv3-RSA-3DES b/libgo/go/crypto/tls/testdata/Server-SSLv3-RSA-3DES
deleted file mode 100644
index 869b22b..0000000
--- a/libgo/go/crypto/tls/testdata/Server-SSLv3-RSA-3DES
+++ /dev/null
@@ -1,76 +0,0 @@
->>> Flow 1 (client to server)
-00000000  16 03 00 00 2f 01 00 00  2b 03 00 6b 1d 6c 38 1a  |..../...+..k.l8.|
-00000010  50 71 9a 32 88 4f 4a fe  47 00 8f 2a 58 08 72 cf  |Pq.2.OJ.G..*X.r.|
-00000020  b5 f8 27 9d f9 17 76 32  8a 3b 29 00 00 04 00 0a  |..'...v2.;).....|
-00000030  00 ff 01 00                                       |....|
->>> Flow 2 (server to client)
-00000000  16 03 00 00 31 02 00 00  2d 03 00 00 00 00 00 00  |....1...-.......|
-00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000020  00 00 00 44 4f 57 4e 47  52 44 00 00 00 0a 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  00 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 00 00  04 0e 00 00 00           |;............|
->>> Flow 3 (client to server)
-00000000  16 03 00 00 84 10 00 00  80 24 e4 7a 2a e8 1b 68  |.........$.z*..h|
-00000010  c5 87 ac 26 72 70 76 c6  3a 2c 9d ed ff 63 3c 5b  |...&rpv.:,...c<[|
-00000020  97 17 3e d4 e9 ab 5b f1  30 ed 29 07 1a 6b 69 f6  |..>...[.0.)..ki.|
-00000030  65 b1 c7 b9 15 9f b1 69  7d 74 c4 73 04 2a 45 77  |e......i}t.s.*Ew|
-00000040  ba f7 8f 98 65 ed 19 2d  a4 de 74 1e 4e 96 78 11  |....e..-..t.N.x.|
-00000050  33 9f be a5 20 e4 bd a8  a4 1a 4d 02 e7 7a ac 01  |3... .....M..z..|
-00000060  f4 12 01 8d 51 9a 52 26  ac a4 f6 52 fc cf 91 97  |....Q.R&...R....|
-00000070  b5 d7 9f 25 92 b4 16 c4  33 46 bd 41 27 89 a2 72  |...%....3F.A'..r|
-00000080  7b 50 d3 ed b3 29 17 aa  ab 14 03 00 00 01 01 16  |{P...)..........|
-00000090  03 00 00 40 ba 01 09 10  84 68 0c 97 25 b5 2d ef  |...@.....h..%.-.|
-000000a0  be c6 d9 21 85 fe bf ef  d4 f3 24 2f 79 04 fd e6  |...!......$/y...|
-000000b0  d3 c1 d2 1b a9 94 10 2e  1f dd dd 1f 97 de 63 e9  |..............c.|
-000000c0  8f 8a c1 d0 ac e1 69 de  92 fa 16 10 2c 9e 5f 3a  |......i.....,._:|
-000000d0  45 7c 3f 88                                       |E|?.|
->>> Flow 4 (server to client)
-00000000  14 03 00 00 01 01 16 03  00 00 40 3b 60 e6 62 bc  |..........@;`.b.|
-00000010  53 0f 95 32 d8 95 33 1b  29 78 49 fd 1f a9 bf 64  |S..2..3.)xI....d|
-00000020  71 2d b5 3e 03 80 a0 06  7a ca cd f6 f3 45 e9 d9  |q-.>....z....E..|
-00000030  c1 fc da 4f 5d 77 a3 07  82 89 3b 77 00 9a 99 a2  |...O]w....;w....|
-00000040  ac bf 73 78 31 a9 8c bf  eb d1 2c 17 03 00 00 18  |..sx1.....,.....|
-00000050  e9 c8 b2 91 db fa 9f 3c  d4 ed 7d 43 f6 b3 53 d2  |.......<..}C..S.|
-00000060  46 12 d2 6c a5 50 bd e1  17 03 00 00 28 2e 6f 91  |F..l.P......(.o.|
-00000070  21 18 89 7b 94 3d c0 6f  8a 4c b4 95 44 4c fe 1a  |!..{.=.o.L..DL..|
-00000080  78 f5 6a fd 8f d0 79 c0  12 2f 4c 12 c4 29 9a 88  |x.j...y../L..)..|
-00000090  43 1c b7 93 3a 15 03 00  00 18 ae 35 00 1f 79 99  |C...:......5..y.|
-000000a0  cd 9f b1 16 a8 0f d6 28  29 e2 0a 16 e2 c2 de b3  |.......().......|
-000000b0  5c 41                                             |\A|
diff --git a/libgo/go/crypto/tls/testdata/Server-SSLv3-RSA-AES b/libgo/go/crypto/tls/testdata/Server-SSLv3-RSA-AES
deleted file mode 100644
index 5b09409..0000000
--- a/libgo/go/crypto/tls/testdata/Server-SSLv3-RSA-AES
+++ /dev/null
@@ -1,77 +0,0 @@
->>> Flow 1 (client to server)
-00000000  16 03 00 00 2f 01 00 00  2b 03 00 c0 74 e5 6f 1e  |..../...+...t.o.|
-00000010  3d 51 26 e2 34 31 68 10  ee 99 ca 45 0f 7d d6 7d  |=Q&.41h....E.}.}|
-00000020  29 82 15 23 3f af d1 48  36 1f ac 00 00 04 00 2f  |)..#?..H6....../|
-00000030  00 ff 01 00                                       |....|
->>> Flow 2 (server to client)
-00000000  16 03 00 00 31 02 00 00  2d 03 00 00 00 00 00 00  |....1...-.......|
-00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000020  00 00 00 44 4f 57 4e 47  52 44 00 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  00 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 00 00  04 0e 00 00 00           |;............|
->>> Flow 3 (client to server)
-00000000  16 03 00 00 84 10 00 00  80 62 6a 6e 2e 83 74 fe  |.........bjn..t.|
-00000010  08 7b e3 38 de be 06 18  ed c3 aa e0 27 5e bb 5d  |.{.8........'^.]|
-00000020  a3 22 38 92 d4 94 ec 18  02 f1 fd 57 98 ac 84 3c  |."8........W...<|
-00000030  07 ef c9 e2 c4 05 03 9c  89 69 dd cb 47 7c 61 5c  |.........i..G|a\|
-00000040  7b c7 02 7b e4 4c 94 28  ea d7 34 ed 03 ef eb de  |{..{.L.(..4.....|
-00000050  c0 75 e3 75 46 24 8a ed  33 33 5c 19 65 a2 f8 0c  |.u.uF$..33\.e...|
-00000060  69 f9 ce 3e b6 88 e3 f4  2a ba 5c 0d 85 2f 64 88  |i..>....*.\../d.|
-00000070  cb 0e af 03 58 1b 54 71  21 fb 4c 13 ff 67 dd e9  |....X.Tq!.L..g..|
-00000080  1a 83 08 a9 ad 46 85 2b  95 14 03 00 00 01 01 16  |.....F.+........|
-00000090  03 00 00 40 65 17 83 78  12 b1 50 a8 7e 91 ad cf  |...@e..x..P.~...|
-000000a0  ff da 1b c3 c2 62 d7 7b  dc 85 6a 1e 64 65 2e fc  |.....b.{..j.de..|
-000000b0  71 ea bd 4b a6 61 e3 95  27 78 f5 93 e6 6e 4c 83  |q..K.a..'x...nL.|
-000000c0  78 f4 a0 ac 3b 23 08 61  b5 b6 96 3f a5 fd 50 be  |x...;#.a...?..P.|
-000000d0  20 ef 8f af                                       | ...|
->>> Flow 4 (server to client)
-00000000  14 03 00 00 01 01 16 03  00 00 40 c1 63 5c 1e 81  |..........@.c\..|
-00000010  ef 1c 55 e7 5b ee 19 2b  89 c9 19 7a 53 96 ae f6  |..U.[..+...zS...|
-00000020  47 22 4b b2 b9 64 38 06  99 b1 58 39 bc c2 7f 1c  |G"K..d8...X9....|
-00000030  c4 8e 0a ec f2 3d 41 ac  a9 a2 34 d9 a2 66 4e 35  |.....=A...4..fN5|
-00000040  a1 a5 a5 ad 70 c2 62 67  f7 83 3f 17 03 00 00 20  |....p.bg..?.... |
-00000050  bf 4b 66 00 de 5f 75 f1  57 a1 47 e3 35 cb 1a 1b  |.Kf.._u.W.G.5...|
-00000060  1e f4 3b f5 96 84 bc ed  36 74 8a 8b 62 46 94 fd  |..;.....6t..bF..|
-00000070  17 03 00 00 30 a2 a7 8c  ac 1b 27 d7 1a 6a 2b 37  |....0.....'..j+7|
-00000080  cc 76 03 e3 93 6e ee 3d  12 d5 cd d7 b2 fc 59 ae  |.v...n.=......Y.|
-00000090  a5 e5 d5 9d 61 86 0b bf  2c 61 de ef 38 95 de 0c  |....a...,a..8...|
-000000a0  01 80 15 04 71 15 03 00  00 20 85 70 23 62 cb 0a  |....q.... .p#b..|
-000000b0  e0 fd f4 36 a6 7d 1a 85  50 36 70 c1 77 85 0d 94  |...6.}..P6p.w...|
-000000c0  fd 90 8a eb cd ce a4 b5  d8 fc                    |..........|
diff --git a/libgo/go/crypto/tls/testdata/Server-SSLv3-RSA-RC4 b/libgo/go/crypto/tls/testdata/Server-SSLv3-RSA-RC4
deleted file mode 100644
index 6feee48..0000000
--- a/libgo/go/crypto/tls/testdata/Server-SSLv3-RSA-RC4
+++ /dev/null
@@ -1,72 +0,0 @@
->>> Flow 1 (client to server)
-00000000  16 03 00 00 2f 01 00 00  2b 03 00 d6 26 87 86 f3  |..../...+...&...|
-00000010  3f e3 08 85 7a fc 3c fe  91 44 1a 68 9f c8 77 10  |?...z.<..D.h..w.|
-00000020  5e af fa b9 e1 09 5f fb  fa ad dd 00 00 04 00 05  |^....._.........|
-00000030  00 ff 01 00                                       |....|
->>> Flow 2 (server to client)
-00000000  16 03 00 00 31 02 00 00  2d 03 00 00 00 00 00 00  |....1...-.......|
-00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000020  00 00 00 44 4f 57 4e 47  52 44 00 00 00 05 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  00 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 00 00  04 0e 00 00 00           |;............|
->>> Flow 3 (client to server)
-00000000  16 03 00 00 84 10 00 00  80 d2 67 c1 73 bb 95 8d  |..........g.s...|
-00000010  b2 e7 30 ca 6c 53 eb f0  34 e5 26 11 0b 91 e9 0a  |..0.lS..4.&.....|
-00000020  cb 7d 9f d8 f9 01 38 06  01 83 29 a7 1d 69 b8 a1  |.}....8...)..i..|
-00000030  1f aa bf 73 1e 26 82 ed  44 f5 82 ec 95 69 88 4b  |...s.&..D....i.K|
-00000040  b7 ce dd 52 c1 a6 3f be  b8 02 23 a5 f3 0c 1e 36  |...R..?...#....6|
-00000050  f9 c9 00 1f da e9 d5 38  48 b0 24 5e 25 c1 d4 cb  |.......8H.$^%...|
-00000060  64 c2 16 ff 94 d6 bd e2  e1 bf 7a 98 d9 77 09 a1  |d.........z..w..|
-00000070  c4 f0 99 e6 57 89 02 c8  dd f0 d5 94 d8 44 34 0b  |....W........D4.|
-00000080  7a 08 52 95 75 20 02 0a  83 14 03 00 00 01 01 16  |z.R.u ..........|
-00000090  03 00 00 3c e9 19 7a 94  45 9a b0 ec 3f 8f 1d 19  |...<..z.E...?...|
-000000a0  64 65 45 6c e8 4e e3 c8  c8 c6 dc d3 a1 05 cf ea  |deEl.N..........|
-000000b0  fa cf 59 74 93 84 53 a3  bd 7b f0 07 64 92 ea a2  |..Yt..S..{..d...|
-000000c0  f1 2a ea 29 4a 80 c6 99  76 3c 7e c3 f7 b0 e5 e2  |.*.)J...v<~.....|
->>> Flow 4 (server to client)
-00000000  14 03 00 00 01 01 16 03  00 00 3c 14 6c 96 8a 5e  |..........<.l..^|
-00000010  ab 93 c2 65 9b 22 57 31  e6 f1 ce 6a a2 28 31 e8  |...e."W1...j.(1.|
-00000020  b5 c3 e7 07 98 2f 0b 40  b7 65 ec 92 f5 60 61 c2  |...../.@.e...`a.|
-00000030  25 40 91 2f fa a4 4e 4a  ad 7b b3 2a 26 23 d3 04  |%@./..NJ.{.*&#..|
-00000040  0f c2 2e 95 82 9d 4b 17  03 00 00 21 5e c6 1e 2c  |......K....!^..,|
-00000050  49 23 4d 14 b2 87 4b c2  f9 09 17 f0 1a 11 15 50  |I#M...K........P|
-00000060  52 d3 85 7b 25 0e e5 2c  7b 74 4b 5e 9d 15 03 00  |R..{%..,{tK^....|
-00000070  00 16 6b aa 31 b5 e4 ff  02 0a 39 bc d7 57 51 a1  |..k.1.....9..WQ.|
-00000080  42 07 c9 ba 2b 35 26 b7                           |B...+5&.|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv10-ECDHE-ECDSA-AES b/libgo/go/crypto/tls/testdata/Server-TLSv10-ECDHE-ECDSA-AES
index c5494af..1132b39 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv10-ECDHE-ECDSA-AES
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv10-ECDHE-ECDSA-AES
@@ -1,79 +1,80 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 63 01 00 00  5f 03 01 c7 00 ca ac 5f  |....c..._......_|
-00000010  08 6c a0 aa e8 a0 55 6f  fb 20 ae 5d 6c 07 fa 6b  |.l....Uo. .]l..k|
-00000020  f8 2b 16 e2 46 ce f7 e7  c1 ba 5c 00 00 04 c0 0a  |.+..F.....\.....|
+00000000  16 03 01 00 63 01 00 00  5f 03 01 38 de f5 d6 ae  |....c..._..8....|
+00000010  46 71 e8 02 f2 45 88 b8  64 fb 6e 68 67 d1 7f e8  |Fq...E..d.nhg...|
+00000020  49 71 1e a9 ec 8e 54 06  bb 2b 16 00 00 04 c0 0a  |Iq....T..+......|
 00000030  00 ff 01 00 00 32 00 00  00 0e 00 0c 00 00 09 31  |.....2.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
 00000060  00 16 00 00 00 17 00 00                           |........|
 >>> Flow 2 (server to client)
-00000000  16 03 01 00 31 02 00 00  2d 03 01 00 00 00 00 00  |....1...-.......|
+00000000  16 03 01 00 37 02 00 00  33 03 01 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 00 00 c0 0a 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  01 02 0e 0b 00 02 0a 00  |................|
-00000040  02 07 00 02 04 30 82 02  00 30 82 01 62 02 09 00  |.....0...0..b...|
-00000050  b8 bf 2d 47 a0 d2 eb f4  30 09 06 07 2a 86 48 ce  |..-G....0...*.H.|
-00000060  3d 04 01 30 45 31 0b 30  09 06 03 55 04 06 13 02  |=..0E1.0...U....|
-00000070  41 55 31 13 30 11 06 03  55 04 08 13 0a 53 6f 6d  |AU1.0...U....Som|
-00000080  65 2d 53 74 61 74 65 31  21 30 1f 06 03 55 04 0a  |e-State1!0...U..|
-00000090  13 18 49 6e 74 65 72 6e  65 74 20 57 69 64 67 69  |..Internet Widgi|
-000000a0  74 73 20 50 74 79 20 4c  74 64 30 1e 17 0d 31 32  |ts Pty Ltd0...12|
-000000b0  31 31 32 32 31 35 30 36  33 32 5a 17 0d 32 32 31  |1122150632Z..221|
-000000c0  31 32 30 31 35 30 36 33  32 5a 30 45 31 0b 30 09  |120150632Z0E1.0.|
-000000d0  06 03 55 04 06 13 02 41  55 31 13 30 11 06 03 55  |..U....AU1.0...U|
-000000e0  04 08 13 0a 53 6f 6d 65  2d 53 74 61 74 65 31 21  |....Some-State1!|
-000000f0  30 1f 06 03 55 04 0a 13  18 49 6e 74 65 72 6e 65  |0...U....Interne|
-00000100  74 20 57 69 64 67 69 74  73 20 50 74 79 20 4c 74  |t Widgits Pty Lt|
-00000110  64 30 81 9b 30 10 06 07  2a 86 48 ce 3d 02 01 06  |d0..0...*.H.=...|
-00000120  05 2b 81 04 00 23 03 81  86 00 04 00 c4 a1 ed be  |.+...#..........|
-00000130  98 f9 0b 48 73 36 7e c3  16 56 11 22 f2 3d 53 c3  |...Hs6~..V.".=S.|
-00000140  3b 4d 21 3d cd 6b 75 e6  f6 b0 dc 9a df 26 c1 bc  |;M!=.ku......&..|
-00000150  b2 87 f0 72 32 7c b3 64  2f 1c 90 bc ea 68 23 10  |...r2|.d/....h#.|
-00000160  7e fe e3 25 c0 48 3a 69  e0 28 6d d3 37 00 ef 04  |~..%.H:i.(m.7...|
-00000170  62 dd 0d a0 9c 70 62 83  d8 81 d3 64 31 aa 9e 97  |b....pb....d1...|
-00000180  31 bd 96 b0 68 c0 9b 23  de 76 64 3f 1a 5c 7f e9  |1...h..#.vd?.\..|
-00000190  12 0e 58 58 b6 5f 70 dd  9b d8 ea d5 d7 f5 d5 cc  |..XX._p.........|
-000001a0  b9 b6 9f 30 66 5b 66 9a  20 e2 27 e5 bf fe 3b 30  |...0f[f. .'...;0|
-000001b0  09 06 07 2a 86 48 ce 3d  04 01 03 81 8c 00 30 81  |...*.H.=......0.|
-000001c0  88 02 42 01 88 a2 4f eb  e2 45 c5 48 7d 1b ac f5  |..B...O..E.H}...|
-000001d0  ed 98 9d ae 47 70 c0 5e  1b b6 2f bd f1 b6 4d b7  |....Gp.^../...M.|
-000001e0  61 40 d3 11 a2 ce ee 0b  7e 92 7e ff 76 9d c3 3b  |a@......~.~.v..;|
-000001f0  7e a5 3f ce fa 10 e2 59  ec 47 2d 7c ac da 4e 97  |~.?....Y.G-|..N.|
-00000200  0e 15 a0 6f d0 02 42 01  4d fc be 67 13 9c 2d 05  |...o..B.M..g..-.|
-00000210  0e bd 3f a3 8c 25 c1 33  13 83 0d 94 06 bb d4 37  |..?..%.3.......7|
-00000220  7a f6 ec 7a c9 86 2e dd  d7 11 69 7f 85 7c 56 de  |z..z......i..|V.|
-00000230  fb 31 78 2b e4 c7 78 0d  ae cb be 9e 4e 36 24 31  |.1x+..x.....N6$1|
-00000240  7b 6a 0f 39 95 12 07 8f  2a 16 03 01 00 b4 0c 00  |{j.9....*.......|
-00000250  00 b0 03 00 1d 20 2f e5  7d a3 47 cd 62 43 15 28  |..... /.}.G.bC.(|
-00000260  da ac 5f bb 29 07 30 ff  f6 84 af c4 cf c2 ed 90  |.._.).0.........|
-00000270  99 5f 58 cb 3b 74 00 8a  30 81 87 02 41 4f 15 dd  |._X.;t..0...AO..|
-00000280  a7 4a 1e 90 6f f5 4b 31  f7 8f c5 5f 26 60 0c d2  |.J..o.K1..._&`..|
-00000290  ab 71 cf e4 3e 20 2e 83  9e 94 00 fc 92 4f 87 43  |.q..> .......O.C|
-000002a0  e8 53 2f a3 ee 4a 4e 58  6e d5 5f 11 64 54 de cc  |.S/..JNXn._.dT..|
-000002b0  ae 83 b1 53 4a 16 1d 14  5c f0 fe 6b c1 7a 02 42  |...SJ...\..k.z.B|
-000002c0  00 89 a0 e3 33 70 5f 20  c3 72 e7 93 1a fa b1 49  |....3p_ .r.....I|
-000002d0  4a 46 83 f4 a3 88 24 c0  22 72 e6 09 ad a7 bd d1  |JF....$."r......|
-000002e0  c8 c1 b3 7c 21 04 dc 67  58 8e 8e d4 bf 2d f3 d7  |...|!..gX....-..|
-000002f0  c4 5a 06 d6 c1 65 84 dc  97 5c 0d 6f a4 64 d2 5f  |.Z...e...\.o.d._|
-00000300  47 99 16 03 01 00 04 0e  00 00 00                 |G..........|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 01 02  |................|
+00000040  0e 0b 00 02 0a 00 02 07  00 02 04 30 82 02 00 30  |...........0...0|
+00000050  82 01 62 02 09 00 b8 bf  2d 47 a0 d2 eb f4 30 09  |..b.....-G....0.|
+00000060  06 07 2a 86 48 ce 3d 04  01 30 45 31 0b 30 09 06  |..*.H.=..0E1.0..|
+00000070  03 55 04 06 13 02 41 55  31 13 30 11 06 03 55 04  |.U....AU1.0...U.|
+00000080  08 13 0a 53 6f 6d 65 2d  53 74 61 74 65 31 21 30  |...Some-State1!0|
+00000090  1f 06 03 55 04 0a 13 18  49 6e 74 65 72 6e 65 74  |...U....Internet|
+000000a0  20 57 69 64 67 69 74 73  20 50 74 79 20 4c 74 64  | Widgits Pty Ltd|
+000000b0  30 1e 17 0d 31 32 31 31  32 32 31 35 30 36 33 32  |0...121122150632|
+000000c0  5a 17 0d 32 32 31 31 32  30 31 35 30 36 33 32 5a  |Z..221120150632Z|
+000000d0  30 45 31 0b 30 09 06 03  55 04 06 13 02 41 55 31  |0E1.0...U....AU1|
+000000e0  13 30 11 06 03 55 04 08  13 0a 53 6f 6d 65 2d 53  |.0...U....Some-S|
+000000f0  74 61 74 65 31 21 30 1f  06 03 55 04 0a 13 18 49  |tate1!0...U....I|
+00000100  6e 74 65 72 6e 65 74 20  57 69 64 67 69 74 73 20  |nternet Widgits |
+00000110  50 74 79 20 4c 74 64 30  81 9b 30 10 06 07 2a 86  |Pty Ltd0..0...*.|
+00000120  48 ce 3d 02 01 06 05 2b  81 04 00 23 03 81 86 00  |H.=....+...#....|
+00000130  04 00 c4 a1 ed be 98 f9  0b 48 73 36 7e c3 16 56  |.........Hs6~..V|
+00000140  11 22 f2 3d 53 c3 3b 4d  21 3d cd 6b 75 e6 f6 b0  |.".=S.;M!=.ku...|
+00000150  dc 9a df 26 c1 bc b2 87  f0 72 32 7c b3 64 2f 1c  |...&.....r2|.d/.|
+00000160  90 bc ea 68 23 10 7e fe  e3 25 c0 48 3a 69 e0 28  |...h#.~..%.H:i.(|
+00000170  6d d3 37 00 ef 04 62 dd  0d a0 9c 70 62 83 d8 81  |m.7...b....pb...|
+00000180  d3 64 31 aa 9e 97 31 bd  96 b0 68 c0 9b 23 de 76  |.d1...1...h..#.v|
+00000190  64 3f 1a 5c 7f e9 12 0e  58 58 b6 5f 70 dd 9b d8  |d?.\....XX._p...|
+000001a0  ea d5 d7 f5 d5 cc b9 b6  9f 30 66 5b 66 9a 20 e2  |.........0f[f. .|
+000001b0  27 e5 bf fe 3b 30 09 06  07 2a 86 48 ce 3d 04 01  |'...;0...*.H.=..|
+000001c0  03 81 8c 00 30 81 88 02  42 01 88 a2 4f eb e2 45  |....0...B...O..E|
+000001d0  c5 48 7d 1b ac f5 ed 98  9d ae 47 70 c0 5e 1b b6  |.H}.......Gp.^..|
+000001e0  2f bd f1 b6 4d b7 61 40  d3 11 a2 ce ee 0b 7e 92  |/...M.a@......~.|
+000001f0  7e ff 76 9d c3 3b 7e a5  3f ce fa 10 e2 59 ec 47  |~.v..;~.?....Y.G|
+00000200  2d 7c ac da 4e 97 0e 15  a0 6f d0 02 42 01 4d fc  |-|..N....o..B.M.|
+00000210  be 67 13 9c 2d 05 0e bd  3f a3 8c 25 c1 33 13 83  |.g..-...?..%.3..|
+00000220  0d 94 06 bb d4 37 7a f6  ec 7a c9 86 2e dd d7 11  |.....7z..z......|
+00000230  69 7f 85 7c 56 de fb 31  78 2b e4 c7 78 0d ae cb  |i..|V..1x+..x...|
+00000240  be 9e 4e 36 24 31 7b 6a  0f 39 95 12 07 8f 2a 16  |..N6$1{j.9....*.|
+00000250  03 01 00 b5 0c 00 00 b1  03 00 1d 20 2f e5 7d a3  |........... /.}.|
+00000260  47 cd 62 43 15 28 da ac  5f bb 29 07 30 ff f6 84  |G.bC.(.._.).0...|
+00000270  af c4 cf c2 ed 90 99 5f  58 cb 3b 74 00 8b 30 81  |......._X.;t..0.|
+00000280  88 02 42 01 ad 26 fd 16  9a 93 5f 87 ce 29 8c d2  |..B..&...._..)..|
+00000290  56 a7 d2 59 56 bd d3 1f  90 54 bd af 91 81 25 ff  |V..YV....T....%.|
+000002a0  66 74 57 16 2f 31 f2 5a  48 97 03 b9 41 4c 8e bb  |ftW./1.ZH...AL..|
+000002b0  87 31 ed 71 84 37 63 78  9f 0a c7 9d 5e f3 5a 53  |.1.q.7cx....^.ZS|
+000002c0  88 89 46 ba a7 02 42 00  92 74 15 1c 0e 1f 2f 95  |..F...B..t..../.|
+000002d0  e5 79 d5 e9 90 ce d8 96  0d fd b8 42 55 00 94 08  |.y.........BU...|
+000002e0  4e 47 a9 ea bd 67 0b 02  a6 9e 8b d3 09 e5 53 ea  |NG...g........S.|
+000002f0  03 22 2e 2d 78 2c 69 1d  28 ab 13 3d 0a 46 15 09  |.".-x,i.(..=.F..|
+00000300  b6 0b 74 69 2d 5a 96 bf  b6 16 03 01 00 04 0e 00  |..ti-Z..........|
+00000310  00 00                                             |..|
 >>> Flow 3 (client to server)
-00000000  16 03 01 00 25 10 00 00  21 20 91 71 e4 59 10 64  |....%...! .q.Y.d|
-00000010  19 77 13 21 9c 60 ee 81  58 ba 41 10 39 61 e0 a7  |.w.!.`..X.A.9a..|
-00000020  73 4d ec e8 cd cc b5 e0  cc 6d 14 03 01 00 01 01  |sM.......m......|
-00000030  16 03 01 00 30 5c 35 d5  37 46 1e 28 52 32 ed 35  |....0\5.7F.(R2.5|
-00000040  44 37 9c ca 83 4c 06 80  ff 17 7c cd 7d e5 22 14  |D7...L....|.}.".|
-00000050  0e 70 12 01 f0 e5 ce 5a  ca be 41 e2 ee 48 9d 95  |.p.....Z..A..H..|
-00000060  c3 51 0c 15 bb                                    |.Q...|
+00000000  16 03 01 00 25 10 00 00  21 20 82 c0 dd 83 c2 45  |....%...! .....E|
+00000010  a2 bc 3a 2a ec ab 60 8e  02 e0 db 7c 59 83 c1 62  |..:*..`....|Y..b|
+00000020  c7 cc 61 1e de dc 40 e4  65 6c 14 03 01 00 01 01  |..a...@.el......|
+00000030  16 03 01 00 30 3e 26 56  0b a2 10 47 00 55 27 21  |....0>&V...G.U'!|
+00000040  63 33 f2 7d 4b ba 77 5f  e7 a7 09 7a 1f 51 85 f2  |c3.}K.w_...z.Q..|
+00000050  46 a5 af 80 79 1a c7 72  bb 3d f9 dd 1d 83 05 22  |F...y..r.=....."|
+00000060  c9 6c dd 91 d9                                    |.l...|
 >>> Flow 4 (server to client)
-00000000  14 03 01 00 01 01 16 03  01 00 30 ba 12 b3 9d e1  |..........0.....|
-00000010  9a 4d 9d d4 74 50 d7 b0  db 05 68 53 ba 1f 4b 3a  |.M..tP....hS..K:|
-00000020  b5 c4 91 ee e6 ed d4 e9  07 c7 12 c5 90 42 f5 44  |.............B.D|
-00000030  5a 34 59 07 9d fa 8c ec  a4 7e 5f 17 03 01 00 20  |Z4Y......~_.... |
-00000040  04 58 11 87 90 9b fe ae  63 39 15 07 ec 74 fd 9a  |.X......c9...t..|
-00000050  15 28 ec b0 75 c4 e8 7a  c5 59 73 9c cf 85 75 af  |.(..u..z.Ys...u.|
-00000060  17 03 01 00 30 24 12 78  fc 37 d4 d8 ec 25 67 38  |....0$.x.7...%g8|
-00000070  63 91 68 3a fc 97 26 ab  11 b9 4b 8f 20 8f 75 4f  |c.h:..&...K. .uO|
-00000080  ca 02 ef 2b 43 b1 4e 7a  ed dd dc 36 93 ae 79 6f  |...+C.Nz...6..yo|
-00000090  c5 8c a2 39 d6 15 03 01  00 20 b0 a0 fb f1 40 b2  |...9..... ....@.|
-000000a0  09 00 94 fd b3 f5 98 1e  d6 fb e8 96 20 36 bb 4b  |............ 6.K|
-000000b0  4a 28 fb 51 0e 6e 7b fe  05 48                    |J(.Q.n{..H|
+00000000  14 03 01 00 01 01 16 03  01 00 30 38 fa fd 42 8f  |..........08..B.|
+00000010  80 5a 7c 33 d4 6c 72 f7  4e 2f 00 ab c2 86 58 9d  |.Z|3.lr.N/....X.|
+00000020  fc a5 43 fa ea 5b a1 ee  a9 df df 9d 90 4c c0 e3  |..C..[.......L..|
+00000030  10 09 c4 23 21 f9 e9 69  f5 f8 fa 17 03 01 00 20  |...#!..i....... |
+00000040  1e 57 17 e4 96 06 32 d4  00 a3 98 ed bd 1c 61 78  |.W....2.......ax|
+00000050  e7 0d 89 ec 84 c3 56 fa  75 73 87 6f 47 35 80 3f  |......V.us.oG5.?|
+00000060  17 03 01 00 30 4d 51 0a  dd 70 6d b0 c2 d1 46 5c  |....0MQ..pm...F\|
+00000070  b5 03 87 de e6 65 d3 e2  83 e0 33 f8 a2 0a 29 7f  |.....e....3...).|
+00000080  6c 24 2b 1f 7b 2b 53 19  21 e9 62 6c 31 75 9c be  |l$+.{+S.!.bl1u..|
+00000090  5b b0 3d 5b 1a 15 03 01  00 20 19 51 64 4b 5a 9b  |[.=[..... .QdKZ.|
+000000a0  c8 2a 1c e7 9e 29 d9 df  ad 1d 08 09 82 a3 b1 1d  |.*...)..........|
+000000b0  60 99 00 25 30 51 a1 72  b6 27                    |`..%0Q.r.'|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv10-ExportKeyingMaterial b/libgo/go/crypto/tls/testdata/Server-TLSv10-ExportKeyingMaterial
index 7e6b5bc..5f80cb3 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv10-ExportKeyingMaterial
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv10-ExportKeyingMaterial
@@ -1,93 +1,94 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 75 01 00 00  71 03 01 7c 54 5c c6 6c  |....u...q..|T\.l|
-00000010  e9 bc 40 7a 4b 4e 46 5d  0a 37 3b d9 8f d7 97 47  |..@zKNF].7;....G|
-00000020  44 42 d4 23 db 0d d2 3b  60 83 c3 00 00 12 c0 0a  |DB.#...;`.......|
+00000000  16 03 01 00 75 01 00 00  71 03 01 a0 fd 51 a6 77  |....u...q....Q.w|
+00000010  69 ee 39 14 8d 0f be a6  9c f7 95 aa 63 14 d2 90  |i.9.........c...|
+00000020  1e 39 34 2c df d8 e4 92  2b a0 36 00 00 12 c0 0a  |.94,....+.6.....|
 00000030  c0 14 00 39 c0 09 c0 13  00 33 00 35 00 2f 00 ff  |...9.....3.5./..|
 00000040  01 00 00 36 00 00 00 0e  00 0c 00 00 09 31 32 37  |...6.........127|
 00000050  2e 30 2e 30 2e 31 00 0b  00 04 03 00 01 02 00 0a  |.0.0.1..........|
 00000060  00 0c 00 0a 00 1d 00 17  00 1e 00 19 00 18 00 23  |...............#|
 00000070  00 00 00 16 00 00 00 17  00 00                    |..........|
 >>> Flow 2 (server to client)
-00000000  16 03 01 00 35 02 00 00  31 03 01 00 00 00 00 00  |....5...1.......|
+00000000  16 03 01 00 3b 02 00 00  37 03 01 00 00 00 00 00  |....;...7.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 00 00 c0 14 00 00  |...DOWNGRD......|
-00000030  09 00 23 00 00 ff 01 00  01 00 16 03 01 02 59 0b  |..#...........Y.|
-00000040  00 02 55 00 02 52 00 02  4f 30 82 02 4b 30 82 01  |..U..R..O0..K0..|
-00000050  b4 a0 03 02 01 02 02 09  00 e8 f0 9d 3f e2 5b ea  |............?.[.|
-00000060  a6 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |.0...*.H........|
-00000070  30 1f 31 0b 30 09 06 03  55 04 0a 13 02 47 6f 31  |0.1.0...U....Go1|
-00000080  10 30 0e 06 03 55 04 03  13 07 47 6f 20 52 6f 6f  |.0...U....Go Roo|
-00000090  74 30 1e 17 0d 31 36 30  31 30 31 30 30 30 30 30  |t0...16010100000|
-000000a0  30 5a 17 0d 32 35 30 31  30 31 30 30 30 30 30 30  |0Z..250101000000|
-000000b0  5a 30 1a 31 0b 30 09 06  03 55 04 0a 13 02 47 6f  |Z0.1.0...U....Go|
-000000c0  31 0b 30 09 06 03 55 04  03 13 02 47 6f 30 81 9f  |1.0...U....Go0..|
-000000d0  30 0d 06 09 2a 86 48 86  f7 0d 01 01 01 05 00 03  |0...*.H.........|
-000000e0  81 8d 00 30 81 89 02 81  81 00 db 46 7d 93 2e 12  |...0.......F}...|
-000000f0  27 06 48 bc 06 28 21 ab  7e c4 b6 a2 5d fe 1e 52  |'.H..(!.~...]..R|
-00000100  45 88 7a 36 47 a5 08 0d  92 42 5b c2 81 c0 be 97  |E.z6G....B[.....|
-00000110  79 98 40 fb 4f 6d 14 fd  2b 13 8b c2 a5 2e 67 d8  |y.@.Om..+.....g.|
-00000120  d4 09 9e d6 22 38 b7 4a  0b 74 73 2b c2 34 f1 d1  |...."8.J.ts+.4..|
-00000130  93 e5 96 d9 74 7b f3 58  9f 6c 61 3c c0 b0 41 d4  |....t{.X.la<..A.|
-00000140  d9 2b 2b 24 23 77 5b 1c  3b bd 75 5d ce 20 54 cf  |.++$#w[.;.u]. T.|
-00000150  a1 63 87 1d 1e 24 c4 f3  1d 1a 50 8b aa b6 14 43  |.c...$....P....C|
-00000160  ed 97 a7 75 62 f4 14 c8  52 d7 02 03 01 00 01 a3  |...ub...R.......|
-00000170  81 93 30 81 90 30 0e 06  03 55 1d 0f 01 01 ff 04  |..0..0...U......|
-00000180  04 03 02 05 a0 30 1d 06  03 55 1d 25 04 16 30 14  |.....0...U.%..0.|
-00000190  06 08 2b 06 01 05 05 07  03 01 06 08 2b 06 01 05  |..+.........+...|
-000001a0  05 07 03 02 30 0c 06 03  55 1d 13 01 01 ff 04 02  |....0...U.......|
-000001b0  30 00 30 19 06 03 55 1d  0e 04 12 04 10 9f 91 16  |0.0...U.........|
-000001c0  1f 43 43 3e 49 a6 de 6d  b6 80 d7 9f 60 30 1b 06  |.CC>I..m....`0..|
-000001d0  03 55 1d 23 04 14 30 12  80 10 48 13 49 4d 13 7e  |.U.#..0...H.IM.~|
-000001e0  16 31 bb a3 01 d5 ac ab  6e 7b 30 19 06 03 55 1d  |.1......n{0...U.|
-000001f0  11 04 12 30 10 82 0e 65  78 61 6d 70 6c 65 2e 67  |...0...example.g|
-00000200  6f 6c 61 6e 67 30 0d 06  09 2a 86 48 86 f7 0d 01  |olang0...*.H....|
-00000210  01 0b 05 00 03 81 81 00  9d 30 cc 40 2b 5b 50 a0  |.........0.@+[P.|
-00000220  61 cb ba e5 53 58 e1 ed  83 28 a9 58 1a a9 38 a4  |a...SX...(.X..8.|
-00000230  95 a1 ac 31 5a 1a 84 66  3d 43 d3 2d d9 0b f2 97  |...1Z..f=C.-....|
-00000240  df d3 20 64 38 92 24 3a  00 bc cf 9c 7d b7 40 20  |.. d8.$:....}.@ |
-00000250  01 5f aa d3 16 61 09 a2  76 fd 13 c3 cc e1 0c 5c  |._...a..v......\|
-00000260  ee b1 87 82 f1 6c 04 ed  73 bb b3 43 77 8d 0c 1c  |.....l..s..Cw...|
-00000270  f1 0f a1 d8 40 83 61 c9  4c 72 2b 9d ae db 46 06  |....@.a.Lr+...F.|
-00000280  06 4d f4 c1 b3 3e c0 d1  bd 42 d4 db fe 3d 13 60  |.M...>...B...=.`|
-00000290  84 5c 21 d3 3b e9 fa e7  16 03 01 00 aa 0c 00 00  |.\!.;...........|
-000002a0  a6 03 00 1d 20 2f e5 7d  a3 47 cd 62 43 15 28 da  |.... /.}.G.bC.(.|
-000002b0  ac 5f bb 29 07 30 ff f6  84 af c4 cf c2 ed 90 99  |._.).0..........|
-000002c0  5f 58 cb 3b 74 00 80 67  06 ef c8 04 2d a2 ae 6b  |_X.;t..g....-..k|
-000002d0  4f 9b d7 94 aa a4 db dc  37 65 ac c5 49 96 7e 48  |O.......7e..I.~H|
-000002e0  0f ea 82 62 d9 74 c8 e2  b4 20 72 77 b9 c1 b3 72  |...b.t... rw...r|
-000002f0  4c 67 78 4b c9 4d 98 63  6d b7 df 16 43 65 d1 37  |LgxK.M.cm...Ce.7|
-00000300  41 48 a3 4e 75 59 83 b9  7a 10 78 d3 84 d9 21 54  |AH.NuY..z.x...!T|
-00000310  c2 86 b3 45 22 e7 e1 35  b7 74 0b 96 fc 7e 81 fa  |...E"..5.t...~..|
-00000320  27 9e 44 8b a7 87 b3 cb  39 d9 7f d2 dc 7f 98 f1  |'.D.....9.......|
-00000330  45 34 cb c1 73 6a 1d 3e  01 f6 0b 9a 26 cf 48 d7  |E4..sj.>....&.H.|
-00000340  ef 56 f2 fb 75 c3 af 16  03 01 00 04 0e 00 00 00  |.V..u...........|
+00000030  0f 00 23 00 00 ff 01 00  01 00 00 0b 00 02 01 00  |..#.............|
+00000040  16 03 01 02 59 0b 00 02  55 00 02 52 00 02 4f 30  |....Y...U..R..O0|
+00000050  82 02 4b 30 82 01 b4 a0  03 02 01 02 02 09 00 e8  |..K0............|
+00000060  f0 9d 3f e2 5b ea a6 30  0d 06 09 2a 86 48 86 f7  |..?.[..0...*.H..|
+00000070  0d 01 01 0b 05 00 30 1f  31 0b 30 09 06 03 55 04  |......0.1.0...U.|
+00000080  0a 13 02 47 6f 31 10 30  0e 06 03 55 04 03 13 07  |...Go1.0...U....|
+00000090  47 6f 20 52 6f 6f 74 30  1e 17 0d 31 36 30 31 30  |Go Root0...16010|
+000000a0  31 30 30 30 30 30 30 5a  17 0d 32 35 30 31 30 31  |1000000Z..250101|
+000000b0  30 30 30 30 30 30 5a 30  1a 31 0b 30 09 06 03 55  |000000Z0.1.0...U|
+000000c0  04 0a 13 02 47 6f 31 0b  30 09 06 03 55 04 03 13  |....Go1.0...U...|
+000000d0  02 47 6f 30 81 9f 30 0d  06 09 2a 86 48 86 f7 0d  |.Go0..0...*.H...|
+000000e0  01 01 01 05 00 03 81 8d  00 30 81 89 02 81 81 00  |.........0......|
+000000f0  db 46 7d 93 2e 12 27 06  48 bc 06 28 21 ab 7e c4  |.F}...'.H..(!.~.|
+00000100  b6 a2 5d fe 1e 52 45 88  7a 36 47 a5 08 0d 92 42  |..]..RE.z6G....B|
+00000110  5b c2 81 c0 be 97 79 98  40 fb 4f 6d 14 fd 2b 13  |[.....y.@.Om..+.|
+00000120  8b c2 a5 2e 67 d8 d4 09  9e d6 22 38 b7 4a 0b 74  |....g....."8.J.t|
+00000130  73 2b c2 34 f1 d1 93 e5  96 d9 74 7b f3 58 9f 6c  |s+.4......t{.X.l|
+00000140  61 3c c0 b0 41 d4 d9 2b  2b 24 23 77 5b 1c 3b bd  |a<..A..++$#w[.;.|
+00000150  75 5d ce 20 54 cf a1 63  87 1d 1e 24 c4 f3 1d 1a  |u]. T..c...$....|
+00000160  50 8b aa b6 14 43 ed 97  a7 75 62 f4 14 c8 52 d7  |P....C...ub...R.|
+00000170  02 03 01 00 01 a3 81 93  30 81 90 30 0e 06 03 55  |........0..0...U|
+00000180  1d 0f 01 01 ff 04 04 03  02 05 a0 30 1d 06 03 55  |...........0...U|
+00000190  1d 25 04 16 30 14 06 08  2b 06 01 05 05 07 03 01  |.%..0...+.......|
+000001a0  06 08 2b 06 01 05 05 07  03 02 30 0c 06 03 55 1d  |..+.......0...U.|
+000001b0  13 01 01 ff 04 02 30 00  30 19 06 03 55 1d 0e 04  |......0.0...U...|
+000001c0  12 04 10 9f 91 16 1f 43  43 3e 49 a6 de 6d b6 80  |.......CC>I..m..|
+000001d0  d7 9f 60 30 1b 06 03 55  1d 23 04 14 30 12 80 10  |..`0...U.#..0...|
+000001e0  48 13 49 4d 13 7e 16 31  bb a3 01 d5 ac ab 6e 7b  |H.IM.~.1......n{|
+000001f0  30 19 06 03 55 1d 11 04  12 30 10 82 0e 65 78 61  |0...U....0...exa|
+00000200  6d 70 6c 65 2e 67 6f 6c  61 6e 67 30 0d 06 09 2a  |mple.golang0...*|
+00000210  86 48 86 f7 0d 01 01 0b  05 00 03 81 81 00 9d 30  |.H.............0|
+00000220  cc 40 2b 5b 50 a0 61 cb  ba e5 53 58 e1 ed 83 28  |.@+[P.a...SX...(|
+00000230  a9 58 1a a9 38 a4 95 a1  ac 31 5a 1a 84 66 3d 43  |.X..8....1Z..f=C|
+00000240  d3 2d d9 0b f2 97 df d3  20 64 38 92 24 3a 00 bc  |.-...... d8.$:..|
+00000250  cf 9c 7d b7 40 20 01 5f  aa d3 16 61 09 a2 76 fd  |..}.@ ._...a..v.|
+00000260  13 c3 cc e1 0c 5c ee b1  87 82 f1 6c 04 ed 73 bb  |.....\.....l..s.|
+00000270  b3 43 77 8d 0c 1c f1 0f  a1 d8 40 83 61 c9 4c 72  |.Cw.......@.a.Lr|
+00000280  2b 9d ae db 46 06 06 4d  f4 c1 b3 3e c0 d1 bd 42  |+...F..M...>...B|
+00000290  d4 db fe 3d 13 60 84 5c  21 d3 3b e9 fa e7 16 03  |...=.`.\!.;.....|
+000002a0  01 00 aa 0c 00 00 a6 03  00 1d 20 2f e5 7d a3 47  |.......... /.}.G|
+000002b0  cd 62 43 15 28 da ac 5f  bb 29 07 30 ff f6 84 af  |.bC.(.._.).0....|
+000002c0  c4 cf c2 ed 90 99 5f 58  cb 3b 74 00 80 00 9f b3  |......_X.;t.....|
+000002d0  fa c1 71 14 e3 1a 6c 3f  b6 61 15 e2 7b 99 c5 4c  |..q...l?.a..{..L|
+000002e0  39 e0 45 f8 9d d3 84 1a  c4 fc 7c 51 32 3d 67 0b  |9.E.......|Q2=g.|
+000002f0  28 b8 8c 6d 66 7e ab 82  c9 f6 d0 49 62 96 2c af  |(..mf~.....Ib.,.|
+00000300  4f 0a d1 21 54 b8 3e ae  09 fd d8 85 10 cb da c4  |O..!T.>.........|
+00000310  6f 42 16 cd 70 cd 33 b0  a5 e5 a1 c7 9a 35 41 3f  |oB..p.3......5A?|
+00000320  59 db a1 b3 f4 ae f6 72  9c a8 db f5 86 99 43 b3  |Y......r......C.|
+00000330  8f bc 0f d9 0a 50 49 58  3b 17 fa 51 27 11 e9 95  |.....PIX;..Q'...|
+00000340  8c bb 1a 31 11 bc a2 fa  2c 6b c2 6a 40 16 03 01  |...1....,k.j@...|
+00000350  00 04 0e 00 00 00                                 |......|
 >>> Flow 3 (client to server)
-00000000  16 03 01 00 25 10 00 00  21 20 67 7e 47 91 48 7e  |....%...! g~G.H~|
-00000010  09 88 9e e7 6c 17 a8 36  3a fb b8 bf f3 1d 51 01  |....l..6:.....Q.|
-00000020  b1 b4 fb 16 a6 9c 19 74  a0 65 14 03 01 00 01 01  |.......t.e......|
-00000030  16 03 01 00 30 f5 06 6c  15 ad 06 45 cc 5d 12 67  |....0..l...E.].g|
-00000040  93 63 e8 50 b5 df f8 75  9d 67 e6 45 92 26 a4 60  |.c.P...u.g.E.&.`|
-00000050  3a fe 2e 75 6f 8b a9 da  de 12 7d 61 05 b7 50 32  |:..uo.....}a..P2|
-00000060  e9 c9 ab 46 e9                                    |...F.|
+00000000  16 03 01 00 25 10 00 00  21 20 bf 0c 33 f5 6a 06  |....%...! ..3.j.|
+00000010  18 0a 74 ad 8b bd ef 9c  00 a3 c0 03 20 5b ea 69  |..t......... [.i|
+00000020  09 18 b8 4a 30 13 c7 10  30 3a 14 03 01 00 01 01  |...J0...0:......|
+00000030  16 03 01 00 30 04 6d f7  66 e9 7f 72 80 32 24 93  |....0.m.f..r.2$.|
+00000040  2f 74 5e 34 c5 fb 19 a0  64 31 1e cb 63 03 fb 51  |/t^4....d1..c..Q|
+00000050  5c d9 17 a8 b0 8a b6 74  e8 84 86 a5 33 d2 75 4a  |\......t....3.uJ|
+00000060  c0 bb 6a bb f3                                    |..j..|
 >>> Flow 4 (server to client)
 00000000  16 03 01 00 82 04 00 00  7e 00 00 00 00 00 78 50  |........~.....xP|
 00000010  46 ad c1 db a8 38 86 7b  2b bb fd d0 c3 42 3e 00  |F....8.{+....B>.|
 00000020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 94  |................|
-00000030  6d ec a4 83 61 7c 54 a3  1a 2d bb 5f f0 10 99 e1  |m...a|T..-._....|
-00000040  34 de 77 7f ee 2f ff 04  6d d3 d3 ef 66 e2 2d d1  |4.w../..m...f.-.|
-00000050  6b 50 30 3c e0 24 e6 22  e3 f2 26 f3 d1 d7 4d ae  |kP0<.$."..&...M.|
-00000060  d3 7e 7f fa 1a 33 94 ef  bd 3f 22 57 45 75 6c 1f  |.~...3...?"WEul.|
-00000070  fe ca 44 27 c1 20 14 cb  42 92 2d db 34 38 dc 50  |..D'. ..B.-.48.P|
-00000080  3f a0 52 a0 78 7f ca 14  03 01 00 01 01 16 03 01  |?.R.x...........|
-00000090  00 30 fe 05 cc db 6f b4  2b 94 01 56 c0 5e 6e cf  |.0....o.+..V.^n.|
-000000a0  29 b0 4d dc 74 ec a7 f6  68 2c 33 d9 cb f5 92 8b  |).M.t...h,3.....|
-000000b0  35 d3 e4 21 a1 a8 dc 4b  a7 a3 97 8d a8 3b 55 21  |5..!...K.....;U!|
-000000c0  17 bd 17 03 01 00 20 15  02 68 3e 6a 6f b8 4d bf  |...... ..h>jo.M.|
-000000d0  1b ef b3 0f 52 a0 9d 07  8f ae 57 50 a0 94 06 9b  |....R.....WP....|
-000000e0  29 d7 c9 4c 5d ad 50 17  03 01 00 30 ab 31 2f 85  |)..L].P....0.1/.|
-000000f0  32 54 67 03 49 3c 25 00  9d b0 17 1d 90 07 ca e2  |2Tg.I<%.........|
-00000100  6c 7e b9 cf 5a ea 7c 10  e4 9a 0c cf 0e fc 7d 4a  |l~..Z.|.......}J|
-00000110  f6 17 0d dc 5b be 3f cb  78 90 9b 87 15 03 01 00  |....[.?.x.......|
-00000120  20 ab 1d cf 80 17 58 01  98 e7 c1 39 81 9f f5 18  | .....X....9....|
-00000130  3e 88 30 81 64 62 36 89  8b e9 06 55 2b d3 ee 85  |>.0.db6....U+...|
-00000140  b9                                                |.|
+00000030  6d ec a4 83 61 28 8e b8  1b 0e dd 7d 71 4a 36 c3  |m...a(.....}qJ6.|
+00000040  6d cb c7 88 ed 19 c5 08  72 b9 25 fb 6c 29 b8 b2  |m.......r.%.l)..|
+00000050  72 f8 27 c0 1e f2 86 16  54 0f 72 a9 6e 15 69 9e  |r.'.....T.r.n.i.|
+00000060  66 fe d1 05 20 33 94 32  40 82 bb e3 61 47 3a 8e  |f... 3.2@...aG:.|
+00000070  b7 45 92 8a 5c 84 64 eb  6c 1a 3c bb 2f be ce b2  |.E..\.d.l.<./...|
+00000080  5f cb c9 be c4 ff d6 14  03 01 00 01 01 16 03 01  |_...............|
+00000090  00 30 5e ff 91 82 d5 30  a4 fb cd 20 90 c1 2d 08  |.0^....0... ..-.|
+000000a0  aa 19 d6 72 fa 74 07 95  df 14 eb 59 bb 0c 81 3f  |...r.t.....Y...?|
+000000b0  75 77 45 96 d8 3e 45 a7  42 1c f1 82 c0 04 4d 2e  |uwE..>E.B.....M.|
+000000c0  3f 07 17 03 01 00 20 54  90 60 76 16 5f 6b d0 3e  |?..... T.`v._k.>|
+000000d0  f6 bf f3 0a 5c b9 3b 19  cb df a6 94 28 04 24 ea  |....\.;.....(.$.|
+000000e0  73 1f 49 5e 23 f6 91 17  03 01 00 30 b5 97 eb 85  |s.I^#......0....|
+000000f0  cc 17 86 b0 0d 24 bf 64  6d 4f 16 55 b0 f3 64 7c  |.....$.dmO.U..d||
+00000100  75 3f e4 16 94 41 56 64  12 50 0e 7c 0c 1c e7 58  |u?...AVd.P.|...X|
+00000110  4d 9c 82 d8 f5 5a 61 a3  d8 3c f5 04 15 03 01 00  |M....Za..<......|
+00000120  20 59 6c e6 9e 4e 14 94  5d 61 94 b2 ba 0f eb 18  | Yl..N..]a......|
+00000130  cf 10 5b f6 90 27 58 8e  10 54 36 d4 c7 52 37 2e  |..[..'X..T6..R7.|
+00000140  a0                                                |.|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-3DES b/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-3DES
index 10fade1..502fd28 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-3DES
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-3DES
@@ -1,75 +1,76 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 63 01 00 00  5f 03 01 33 4b 5c 08 a3  |....c..._..3K\..|
-00000010  64 52 8d 1f c9 55 bd 2e  03 e8 9d 88 f4 ff c0 35  |dR...U.........5|
-00000020  33 ad d0 aa 7d f6 2d 42  0c c4 85 00 00 04 00 0a  |3...}.-B........|
+00000000  16 03 01 00 63 01 00 00  5f 03 01 25 03 63 bf 34  |....c..._..%.c.4|
+00000010  89 c8 9e f6 e0 46 f8 30  5c e8 62 0a f7 db 68 c9  |.....F.0\.b...h.|
+00000020  50 54 0e c2 15 f1 cb 07  66 06 3d 00 00 04 00 0a  |PT......f.=.....|
 00000030  00 ff 01 00 00 32 00 00  00 0e 00 0c 00 00 09 31  |.....2.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
 00000060  00 16 00 00 00 17 00 00                           |........|
 >>> Flow 2 (server to client)
-00000000  16 03 01 00 31 02 00 00  2d 03 01 00 00 00 00 00  |....1...-.......|
+00000000  16 03 01 00 37 02 00 00  33 03 01 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 00 00 00 0a 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  01 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 01 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 01 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 01 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 01 00 86 10 00 00  82 00 80 69 ea b8 fd 3a  |...........i...:|
-00000010  76 cb 76 4d b2 7a 0e 61  4d 9d 9e 26 13 02 07 aa  |v.vM.z.aM..&....|
-00000020  31 94 01 9f 57 00 80 f1  aa 75 06 09 65 42 c7 c8  |1...W....u..eB..|
-00000030  6d ea 8c 75 4e 69 35 d2  84 71 89 5a 44 f6 15 91  |m..uNi5..q.ZD...|
-00000040  b0 a9 e1 ff 65 0a 51 fe  06 a3 2d eb cb 33 6e 07  |....e.Q...-..3n.|
-00000050  dd 2f 02 fe d3 ec 89 7c  87 48 27 eb d8 8c 4c 6d  |./.....|.H'...Lm|
-00000060  95 4c 6f 8a a8 a0 fe 59  d6 a4 b4 7a a5 48 aa f1  |.Lo....Y...z.H..|
-00000070  37 95 1d 4d 18 ee b0 a7  aa ca a8 18 65 83 8e 26  |7..M........e..&|
-00000080  05 9c d6 76 ff 9b 40 65  b7 2e 47 14 03 01 00 01  |...v..@e..G.....|
-00000090  01 16 03 01 00 28 fa 03  ae d2 47 ef 75 4e 99 79  |.....(....G.uN.y|
-000000a0  69 87 be 5e 61 1f 0f 09  65 56 31 08 09 38 34 1b  |i..^a...eV1..84.|
-000000b0  41 6a 9e 2c 3b a9 11 62  34 a8 58 bc 1d 92        |Aj.,;..b4.X...|
+00000000  16 03 01 00 86 10 00 00  82 00 80 0f e9 83 ca 77  |...............w|
+00000010  c8 26 16 24 00 b7 09 d2  73 aa c1 d9 77 f3 fc 38  |.&.$....s...w..8|
+00000020  1c 2e c0 26 b4 a6 40 e1  1b 93 39 8f a2 1f f2 f9  |...&..@...9.....|
+00000030  18 2a 7b 0e cd 9b 9b 9c  49 86 43 3d 48 fd 40 d7  |.*{.....I.C=H.@.|
+00000040  af f9 2b 5e c6 cc c6 2d  8d 36 fe b1 75 c1 b5 a0  |..+^...-.6..u...|
+00000050  57 97 0f 01 ee b4 6a af  0c fe f0 68 78 04 6a 3e  |W.....j....hx.j>|
+00000060  83 d0 72 34 80 d8 7d cd  8b 83 06 5b 36 50 10 8e  |..r4..}....[6P..|
+00000070  b4 27 3d 6a ae b7 7f 8b  2a b1 0b 51 49 05 b5 01  |.'=j....*..QI...|
+00000080  3c 27 9a 59 e3 41 18 38  d6 8f 7a 14 03 01 00 01  |<'.Y.A.8..z.....|
+00000090  01 16 03 01 00 28 c0 46  65 9f 7f d8 c3 c4 a7 33  |.....(.Fe......3|
+000000a0  50 f9 07 41 95 12 a6 f3  ca 53 b9 96 f8 a8 a6 5f  |P..A.....S....._|
+000000b0  1e c8 20 e5 8b 87 4e 12  73 13 e0 e4 c6 89        |.. ...N.s.....|
 >>> Flow 4 (server to client)
-00000000  14 03 01 00 01 01 16 03  01 00 28 a4 c5 9f 93 86  |..........(.....|
-00000010  fe 08 22 16 05 20 81 e3  a3 38 74 5d 32 24 41 50  |..".. ...8t]2$AP|
-00000020  f4 e4 6b dd 92 0b d6 77  86 44 32 f9 2d f0 52 0e  |..k....w.D2.-.R.|
-00000030  c4 98 02 17 03 01 00 18  20 ee 92 bf 46 ce 52 ed  |........ ...F.R.|
-00000040  ac 85 df cd 2a a7 c1 6c  82 be ed 55 9e 55 25 b2  |....*..l...U.U%.|
-00000050  17 03 01 00 28 b0 45 3d  83 94 79 d1 a5 a3 b0 0a  |....(.E=..y.....|
-00000060  59 63 13 62 1e 66 c2 69  4d a4 8d e0 fb 87 cb dc  |Yc.b.f.iM.......|
-00000070  5e 51 49 05 82 4d d6 1e  40 78 f0 cd 4b 15 03 01  |^QI..M..@x..K...|
-00000080  00 18 38 0e 60 43 55 25  82 d2 4c 97 cf cd a9 7a  |..8.`CU%..L....z|
-00000090  e8 8a 4a eb c1 8d 54 cb  e6 92                    |..J...T...|
+00000000  14 03 01 00 01 01 16 03  01 00 28 e2 47 2b 57 fe  |..........(.G+W.|
+00000010  74 71 95 6a ee 68 2b f3  48 40 13 52 35 46 58 d4  |tq.j.h+.H@.R5FX.|
+00000020  ee aa 4c a8 53 0f 3a 19  ed 18 37 2d e4 b9 1e e6  |..L.S.:...7-....|
+00000030  28 42 a1 17 03 01 00 18  d8 7c 20 f2 03 6d a9 ed  |(B.......| ..m..|
+00000040  c9 73 50 d7 56 4f 0b d8  4b 44 f6 80 e4 c1 a9 f5  |.sP.VO..KD......|
+00000050  17 03 01 00 28 f5 b2 11  6b a6 4b 22 30 42 3c cc  |....(...k.K"0B<.|
+00000060  07 0d ed 10 d0 c7 7b ec  b3 60 0b 2b 3c fb ec 3a  |......{..`.+<..:|
+00000070  c0 be 44 e7 76 b6 9e db  17 36 92 df 88 15 03 01  |..D.v....6......|
+00000080  00 18 7a d9 2f 46 2e 0f  ec c5 ee 7b ef bd fb e5  |..z./F.....{....|
+00000090  26 40 0a a2 4e eb 56 0e  ca 03                    |&@..N.V...|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-AES b/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-AES
index 10fc9f0..7425376 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-AES
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-AES
@@ -1,78 +1,79 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 63 01 00 00  5f 03 01 a1 4c 20 79 0a  |....c..._...L y.|
-00000010  35 d6 8b 7d e7 f2 3e eb  bd c2 72 73 a9 18 c2 9b  |5..}..>...rs....|
-00000020  8a a0 b6 ae 17 21 df 6f  d0 b0 f8 00 00 04 00 2f  |.....!.o......./|
+00000000  16 03 01 00 63 01 00 00  5f 03 01 78 91 f6 ad 9e  |....c..._..x....|
+00000010  79 23 92 10 d9 c5 43 52  8f f6 f4 3f f4 eb ac 6b  |y#....CR...?...k|
+00000020  f3 ce a9 76 a2 bf c3 5b  9d bc 52 00 00 04 00 2f  |...v...[..R..../|
 00000030  00 ff 01 00 00 32 00 00  00 0e 00 0c 00 00 09 31  |.....2.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
 00000060  00 16 00 00 00 17 00 00                           |........|
 >>> Flow 2 (server to client)
-00000000  16 03 01 00 31 02 00 00  2d 03 01 00 00 00 00 00  |....1...-.......|
+00000000  16 03 01 00 37 02 00 00  33 03 01 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 00 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  01 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 01 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 01 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 01 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 01 00 86 10 00 00  82 00 80 95 ba 78 12 0e  |.............x..|
-00000010  c1 98 6b 93 f6 7d bd f4  8c 77 de 0a 0a 2a 6e 25  |..k..}...w...*n%|
-00000020  18 a9 eb 41 c2 c0 63 26  82 7a ea 84 ad cc e8 e2  |...A..c&.z......|
-00000030  d8 f1 20 e4 fb 39 87 b8  47 f3 8a 6c 9f b6 08 13  |.. ..9..G..l....|
-00000040  b0 76 99 65 cf 68 87 c4  e7 54 ff 6d 5f 81 f2 9f  |.v.e.h...T.m_...|
-00000050  57 1d 21 e8 ed aa 50 17  e7 85 a5 74 6e 9c cc 84  |W.!...P....tn...|
-00000060  bb 06 11 ec 67 8b dc cd  7a 31 4c 08 f4 16 5f d5  |....g...z1L..._.|
-00000070  07 0d 17 aa 00 56 51 6a  4c f5 9d 81 40 27 77 45  |.....VQjL...@'wE|
-00000080  78 4d 68 6d 96 f7 28 c8  bd 18 b1 14 03 01 00 01  |xMhm..(.........|
-00000090  01 16 03 01 00 30 df 7f  74 cd e8 0f 09 06 dd a5  |.....0..t.......|
-000000a0  84 46 db ad 71 85 1a 0d  e5 f1 d2 f0 2a b2 ef bb  |.F..q.......*...|
-000000b0  0b 79 88 ab ad 39 6d 4b  16 ae 0e 07 9b 9c 3a ea  |.y...9mK......:.|
-000000c0  b9 4b 8a 4b 73 06                                 |.K.Ks.|
+00000000  16 03 01 00 86 10 00 00  82 00 80 73 aa be d1 21  |...........s...!|
+00000010  67 e9 9c 20 40 cf 0a 47  31 61 e9 2b ba 06 4f aa  |g.. @..G1a.+..O.|
+00000020  ce 15 6a b7 df 0d 0e b0  fe b5 f2 c0 26 81 39 6e  |..j.........&.9n|
+00000030  5b 96 3c 2f 42 4f 08 92  48 a3 95 c8 ad 0d 0e 8f  |[.</BO..H.......|
+00000040  9c 9e fc bf d7 25 2e c7  d1 e2 e6 66 9b bf 20 94  |.....%.....f.. .|
+00000050  6f d3 62 77 38 0f f6 96  ae 54 f1 8c 6a c2 17 bd  |o.bw8....T..j...|
+00000060  c6 7c 99 f0 e5 6d 1b f2  81 c6 49 29 c2 24 db a7  |.|...m....I).$..|
+00000070  0f c0 53 15 6f 3e 9b d8  c2 32 f1 3e 16 b7 d3 b2  |..S.o>...2.>....|
+00000080  36 99 9f b7 53 ef 34 e8  d6 13 3b 14 03 01 00 01  |6...S.4...;.....|
+00000090  01 16 03 01 00 30 c6 d2  a6 85 cf 2a e4 9e 9e e1  |.....0.....*....|
+000000a0  d0 82 d0 2a f8 e5 bd f6  9a 67 0b c6 47 07 9c 14  |...*.....g..G...|
+000000b0  7e 73 9e 4c 8b d2 55 4f  b2 32 9a 16 16 a5 e8 25  |~s.L..UO.2.....%|
+000000c0  62 e2 e9 88 b6 44                                 |b....D|
 >>> Flow 4 (server to client)
-00000000  14 03 01 00 01 01 16 03  01 00 30 cd 95 e4 10 a8  |..........0.....|
-00000010  1b dd 36 80 7c 9e 04 23  4c 23 57 0a 57 cf 9a 2e  |..6.|..#L#W.W...|
-00000020  07 6d 81 b0 27 f8 5c cc  3b a8 80 40 38 be e0 27  |.m..'.\.;..@8..'|
-00000030  25 ed f2 7d b9 5e a0 76  68 f8 06 17 03 01 00 20  |%..}.^.vh...... |
-00000040  9c 12 9d 3b a0 e5 04 8b  78 44 bc 80 68 22 2b 4c  |...;....xD..h"+L|
-00000050  64 f1 ca 5c 83 eb 27 e7  29 ad cc 7d d5 e6 ec 1d  |d..\..'.)..}....|
-00000060  17 03 01 00 30 6e 42 31  b0 3d 46 7d e6 08 8c 43  |....0nB1.=F}...C|
-00000070  ea 48 53 34 29 b4 6e ac  2e c4 1f a3 fb fa 70 d5  |.HS4).n.......p.|
-00000080  36 9b 94 4f 6f 3f 00 fa  e3 f4 4b e6 b3 f2 0d e2  |6..Oo?....K.....|
-00000090  0f 60 e4 34 4d 15 03 01  00 20 21 a1 22 a3 e1 71  |.`.4M.... !."..q|
-000000a0  ab 28 89 7c 12 ed 12 f7  3e 8a 9a 0e c0 f5 2b 2e  |.(.|....>.....+.|
-000000b0  91 bd 3f 05 ff 48 1c 3c  b5 af                    |..?..H.<..|
+00000000  14 03 01 00 01 01 16 03  01 00 30 21 7a ee 62 6a  |..........0!z.bj|
+00000010  20 39 2a 39 d1 d3 f7 bd  53 05 4f 1a 36 71 3b b6  | 9*9....S.O.6q;.|
+00000020  c5 5a b7 3b c3 0b 3f b9  2f ac 62 1c c2 2f fa 29  |.Z.;..?./.b../.)|
+00000030  dd f3 bc ff 35 28 7f 86  b8 0f 33 17 03 01 00 20  |....5(....3.... |
+00000040  3a 6c 47 23 37 5a 15 bd  03 c6 64 c5 59 2f 91 e8  |:lG#7Z....d.Y/..|
+00000050  a6 1b d5 04 c2 a7 80 0e  94 6c 3c e4 70 2c ea 81  |.........l<.p,..|
+00000060  17 03 01 00 30 60 14 bc  6b 84 16 9f 53 b6 ee c9  |....0`..k...S...|
+00000070  43 cf f3 46 97 45 e1 2f  86 96 26 cc ef ea 09 72  |C..F.E./..&....r|
+00000080  36 92 4e 9e 2a 8e a2 d7  9a cd 5f 38 a8 07 c4 54  |6.N.*....._8...T|
+00000090  a1 4d 6e 7a 36 15 03 01  00 20 1e c2 df a3 3e 8e  |.Mnz6.... ....>.|
+000000a0  15 c4 c0 90 8f 7c 5a e0  68 d7 ea 86 76 8d d1 27  |.....|Z.h...v..'|
+000000b0  c1 d9 32 55 f9 ce f5 92  e6 51                    |..2U.....Q|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-RC4 b/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-RC4
index cbf41d5..8b1de03 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-RC4
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv10-RSA-RC4
@@ -1,72 +1,73 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 63 01 00 00  5f 03 01 79 6a d2 2d 89  |....c..._..yj.-.|
-00000010  ce 1b 74 2f fd 6b ea e2  2d 21 56 0d e9 37 ce b9  |..t/.k..-!V..7..|
-00000020  bc 96 ef 0c 71 66 7a 3b  13 3a 6b 00 00 04 00 05  |....qfz;.:k.....|
+00000000  16 03 01 00 63 01 00 00  5f 03 01 55 31 1a ed 02  |....c..._..U1...|
+00000010  35 fe 3c ea 62 08 52 96  93 bc 2a 1b 82 fe b9 8f  |5.<.b.R...*.....|
+00000020  7a 47 0e 6a 9b e8 86 ca  89 a0 e6 00 00 04 00 05  |zG.j............|
 00000030  00 ff 01 00 00 32 00 00  00 0e 00 0c 00 00 09 31  |.....2.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
 00000060  00 16 00 00 00 17 00 00                           |........|
 >>> Flow 2 (server to client)
-00000000  16 03 01 00 31 02 00 00  2d 03 01 00 00 00 00 00  |....1...-.......|
+00000000  16 03 01 00 37 02 00 00  33 03 01 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 00 00 00 05 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  01 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 01 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 01 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 01 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 01 00 86 10 00 00  82 00 80 d4 da 80 53 5a  |..............SZ|
-00000010  4c fc 0b c3 91 a0 b4 91  24 5a 6b 59 01 fa 05 52  |L.......$ZkY...R|
-00000020  cb 37 8c de 51 58 d7 ac  24 e2 d3 ac ad e6 00 0f  |.7..QX..$.......|
-00000030  72 50 a4 81 c3 18 ef f9  cb 0f 8b 6a cd e5 0e 46  |rP.........j...F|
-00000040  9a f1 3c 61 ed 31 d4 c0  35 61 14 1e e8 b5 0c b2  |..<a.1..5a......|
-00000050  12 d3 98 5b 54 11 41 cb  8c 13 44 3b 22 fd 3f 5e  |...[T.A...D;".?^|
-00000060  29 db 5a 46 13 ee 46 50  ba 25 f4 fb 90 ea ba 73  |).ZF..FP.%.....s|
-00000070  3d 8e 9e 4b cd c3 98 e6  34 99 fd 1a 8d f7 c4 53  |=..K....4......S|
-00000080  22 ca 3a 40 85 1e 64 ff  bc 29 d8 14 03 01 00 01  |".:@..d..)......|
-00000090  01 16 03 01 00 24 fd 64  7d 03 fb ae e7 36 bd ce  |.....$.d}....6..|
-000000a0  c3 76 f7 17 84 bd ca d6  33 b6 c9 04 1e f4 79 b9  |.v......3.....y.|
-000000b0  d1 32 49 cd 85 d9 fe c1  11 d1                    |.2I.......|
+00000000  16 03 01 00 86 10 00 00  82 00 80 75 7d be e3 5b  |...........u}..[|
+00000010  66 4b 58 09 f7 86 6a ca  93 8e ba 3c 18 11 47 5e  |fKX...j....<..G^|
+00000020  7e c2 b1 0c 5e a4 c1 07  ef 25 00 d7 bf c7 b0 03  |~...^....%......|
+00000030  0d f6 ff a9 c2 73 a2 c0  dc 8d db f9 5a a9 18 7d  |.....s......Z..}|
+00000040  1f 8e 0b 9c 24 6c c8 49  99 e1 42 e0 86 d5 e1 e1  |....$l.I..B.....|
+00000050  d1 ae fd d2 c4 ef 07 8c  28 95 b7 54 25 57 40 1c  |........(..T%W@.|
+00000060  c6 af 85 46 a0 31 d4 39  b8 47 43 88 a0 a6 5d d7  |...F.1.9.GC...].|
+00000070  95 fb 88 64 ce 36 2b c5  56 85 56 40 f8 d4 d3 90  |...d.6+.V.V@....|
+00000080  d1 25 53 06 d8 ab a0 f2  21 8f 88 14 03 01 00 01  |.%S.....!.......|
+00000090  01 16 03 01 00 24 26 50  7a 2c ab 3f db 41 06 cf  |.....$&Pz,.?.A..|
+000000a0  8b 7b f8 46 ad a4 77 b6  06 f0 44 23 04 34 88 9d  |.{.F..w...D#.4..|
+000000b0  48 d7 5e cc 9e e6 46 a3  04 69                    |H.^...F..i|
 >>> Flow 4 (server to client)
-00000000  14 03 01 00 01 01 16 03  01 00 24 0a 1c be 60 96  |..........$...`.|
-00000010  78 67 15 22 ac 38 39 87  80 f5 69 2b 08 32 01 23  |xg.".89...i+.2.#|
-00000020  e0 96 b3 89 8c 57 5f e4  27 33 66 90 b9 47 bc 17  |.....W_.'3f..G..|
-00000030  03 01 00 21 fd 10 f3 e3  e6 14 bf b2 72 ab f0 bb  |...!........r...|
-00000040  11 04 54 da cd 93 03 14  78 2c 26 32 44 2c 0c e8  |..T.....x,&2D,..|
-00000050  7e 56 25 83 0f 15 03 01  00 16 0c 26 07 14 19 aa  |~V%........&....|
-00000060  7e 78 bf 39 96 07 44 3d  a9 c6 50 7d dc c9 de f5  |~x.9..D=..P}....|
+00000000  14 03 01 00 01 01 16 03  01 00 24 57 fc eb dd 40  |..........$W...@|
+00000010  83 1d 9a 9a 80 a3 62 a0  08 23 c3 97 fd d5 fb d7  |......b..#......|
+00000020  98 f8 14 ae 61 c7 21 fb  8a 18 1e c8 15 05 e7 17  |....a.!.........|
+00000030  03 01 00 21 7c 2b 2d 72  2f 63 56 3a 09 51 4e ab  |...!|+-r/cV:.QN.|
+00000040  31 25 c8 7e 34 5b a4 ab  30 87 50 07 ed 32 3f 79  |1%.~4[..0.P..2?y|
+00000050  f1 db c0 17 f3 15 03 01  00 16 fc ce c9 0c b6 0c  |................|
+00000060  c5 2d d9 3f 2a 9e 9a 83  40 e1 a3 b9 5f 89 aa 75  |.-.?*...@..._..u|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv11-RSA-RC4 b/libgo/go/crypto/tls/testdata/Server-TLSv11-RSA-RC4
index 22e2291..dc70edf 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv11-RSA-RC4
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv11-RSA-RC4
@@ -1,72 +1,73 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 63 01 00 00  5f 03 02 ea cf 4a b4 40  |....c..._....J.@|
-00000010  33 f1 d3 b2 c1 2a f6 d6  bb 3f 48 8c 1a d2 40 0f  |3....*...?H...@.|
-00000020  4a 1e e8 07 8a 06 19 45  6a 02 cb 00 00 04 00 05  |J......Ej.......|
+00000000  16 03 01 00 63 01 00 00  5f 03 02 2b b6 22 28 e3  |....c..._..+."(.|
+00000010  1f 42 f4 2e d0 43 4b 9a  ea 2b 36 44 ca 93 6c 71  |.B...CK..+6D..lq|
+00000020  b9 4d 52 44 64 57 b2 05  9b 41 da 00 00 04 00 05  |.MRDdW...A......|
 00000030  00 ff 01 00 00 32 00 00  00 0e 00 0c 00 00 09 31  |.....2.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
 00000060  00 16 00 00 00 17 00 00                           |........|
 >>> Flow 2 (server to client)
-00000000  16 03 02 00 31 02 00 00  2d 03 02 00 00 00 00 00  |....1...-.......|
+00000000  16 03 02 00 37 02 00 00  33 03 02 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 00 00 00 05 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  02 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 02 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 02 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 02 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 02 00 86 10 00 00  82 00 80 a2 98 fb e6 12  |................|
-00000010  7d 1c 3c de 04 9c 01 11  41 69 a4 e3 74 62 88 36  |}.<.....Ai..tb.6|
-00000020  97 b5 28 14 6a 6d 27 1b  7d 27 0f fd 5b 76 07 3f  |..(.jm'.}'..[v.?|
-00000030  3e 99 21 93 46 9d 2c a0  4c d9 54 25 70 11 b8 ac  |>.!.F.,.L.T%p...|
-00000040  8e 5c 29 31 2c b2 39 92  10 32 dc b0 60 af 2e d4  |.\)1,.9..2..`...|
-00000050  b3 f7 ba 44 0a 6c e2 4b  38 18 4b 51 60 1b a5 0d  |...D.l.K8.KQ`...|
-00000060  bf ec 00 fb fd 53 1f 6e  b5 eb cd 32 1b 15 e9 ea  |.....S.n...2....|
-00000070  5c 93 72 dc 67 94 39 ed  2d 1e 6f f9 10 da 79 50  |\.r.g.9.-.o...yP|
-00000080  e1 d2 db 6f 34 38 d1 fb  2c 38 cb 14 03 02 00 01  |...o48..,8......|
-00000090  01 16 03 02 00 24 b4 29  aa 9d 48 a3 59 07 f8 a8  |.....$.)..H.Y...|
-000000a0  f0 aa aa 0f 63 dd 0e ca  d6 20 45 6d 88 ba 52 e2  |....c.... Em..R.|
-000000b0  f9 cd 2f 25 d3 88 b1 a6  cf 9d                    |../%......|
+00000000  16 03 02 00 86 10 00 00  82 00 80 3d 47 85 0a ef  |...........=G...|
+00000010  47 7c c5 93 bb 6f 7c 57  dc 2b 3f f4 e7 da 4e fc  |G|...o|W.+?...N.|
+00000020  04 52 36 71 c5 63 1f 6f  e6 43 91 06 bc 5c 14 b0  |.R6q.c.o.C...\..|
+00000030  ee 83 ed 3d 7a d2 4e 2c  d2 2c bb f0 0c b5 82 d5  |...=z.N,.,......|
+00000040  9d c2 5a 03 12 b6 70 20  3c 89 84 af 1b 2c 2f b7  |..Z...p <....,/.|
+00000050  9b fe dd 71 06 ac 46 30  a7 b5 9f 0b aa 6e 58 50  |...q..F0.....nXP|
+00000060  9d da 6b ba 00 51 e9 2a  e9 d2 e9 0f 83 62 73 19  |..k..Q.*.....bs.|
+00000070  91 a4 46 bd 53 42 f7 15  ab ab 6b 8f f3 6f d1 07  |..F.SB....k..o..|
+00000080  44 41 97 4c 7d 89 4b 33  55 30 30 14 03 02 00 01  |DA.L}.K3U00.....|
+00000090  01 16 03 02 00 24 54 fe  a0 7c 16 47 de 0b 8f 7d  |.....$T..|.G...}|
+000000a0  51 68 05 da 1e 6d 96 c9  e1 94 68 fa 79 46 02 db  |Qh...m....h.yF..|
+000000b0  03 4e 2e 70 9f 7e 14 85  fd 1d                    |.N.p.~....|
 >>> Flow 4 (server to client)
-00000000  14 03 02 00 01 01 16 03  02 00 24 cc 9a e8 46 cc  |..........$...F.|
-00000010  e5 45 8c f6 aa 71 28 f7  1b 2a 51 f8 33 c3 08 a3  |.E...q(..*Q.3...|
-00000020  cd 72 7d 38 a9 d1 6f b8  c6 ce ef ae 4f 3d 50 17  |.r}8..o.....O=P.|
-00000030  03 02 00 21 e1 9b 1e f6  56 28 6d 78 53 96 a4 41  |...!....V(mxS..A|
-00000040  7b a8 15 29 74 40 b5 f4  d3 ae b7 8b b2 01 53 dd  |{..)t@........S.|
-00000050  45 bf 3a 55 9d 15 03 02  00 16 cb a8 cb 98 ac 0d  |E.:U............|
-00000060  1c eb aa c4 2a 71 65 aa  b4 c9 d7 90 f7 88 3b b0  |....*qe.......;.|
+00000000  14 03 02 00 01 01 16 03  02 00 24 4b c5 cf 20 3f  |..........$K.. ?|
+00000010  0a 13 1f 55 25 26 9b 33  fd 14 61 0f 44 32 26 b3  |...U%&.3..a.D2&.|
+00000020  ab 01 ee c2 1f d3 38 08  f0 af 76 6a 0d e1 b7 17  |......8...vj....|
+00000030  03 02 00 21 97 16 df 99  06 81 f2 00 d3 fd b4 03  |...!............|
+00000040  be 16 b6 aa 74 d4 c7 25  67 94 14 34 25 ec 0d 12  |....t..%g..4%...|
+00000050  c7 43 2d a2 1d 15 03 02  00 16 94 58 af 6b 55 5f  |.C-........X.kU_|
+00000060  25 0c 80 28 99 2d 75 1a  ce 24 cd 75 0d 7f b9 71  |%..(.-u..$.u...q|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-ALPN b/libgo/go/crypto/tls/testdata/Server-TLSv12-ALPN
index 0d9f63b..f6ddb97 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-ALPN
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-ALPN
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 e3 01 00 00  df 03 03 24 c0 b7 bd da  |...........$....|
-00000010  2a 23 bd 6f a0 8f 94 be  7c 14 56 ad fd a8 87 3f  |*#.o....|.V....?|
-00000020  c1 97 38 14 7a d4 30 28  11 c4 b5 00 00 38 c0 2c  |..8.z.0(.....8.,|
+00000000  16 03 01 00 e3 01 00 00  df 03 03 e7 33 0d 6a 2d  |............3.j-|
+00000010  87 bc b4 a1 11 ee 1a 4e  91 f5 fb ad 29 70 d4 6d  |.......N....)p.m|
+00000020  05 be ec f3 e2 b1 0d 4e  da a4 b5 00 00 38 c0 2c  |.......N.....8.,|
 00000030  c0 30 00 9f cc a9 cc a8  cc aa c0 2b c0 2f 00 9e  |.0.........+./..|
 00000040  c0 24 c0 28 00 6b c0 23  c0 27 00 67 c0 0a c0 14  |.$.(.k.#.'.g....|
 00000050  00 39 c0 09 c0 13 00 33  00 9d 00 9c 00 3d 00 3c  |.9.....3.....=.<|
@@ -15,82 +15,83 @@
 000000d0  04 01 05 01 06 01 03 03  02 03 03 01 02 01 03 02  |................|
 000000e0  02 02 04 02 05 02 06 02                           |........|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 42 02 00 00  3e 03 03 00 00 00 00 00  |....B...>.......|
+00000000  16 03 03 00 48 02 00 00  44 03 03 00 00 00 00 00  |....H...D.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 30 00 00  |...DOWNGRD...0..|
-00000030  16 00 23 00 00 ff 01 00  01 00 00 10 00 09 00 07  |..#.............|
-00000040  06 70 72 6f 74 6f 31 16  03 03 02 59 0b 00 02 55  |.proto1....Y...U|
-00000050  00 02 52 00 02 4f 30 82  02 4b 30 82 01 b4 a0 03  |..R..O0..K0.....|
-00000060  02 01 02 02 09 00 e8 f0  9d 3f e2 5b ea a6 30 0d  |.........?.[..0.|
-00000070  06 09 2a 86 48 86 f7 0d  01 01 0b 05 00 30 1f 31  |..*.H........0.1|
-00000080  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 10 30 0e  |.0...U....Go1.0.|
-00000090  06 03 55 04 03 13 07 47  6f 20 52 6f 6f 74 30 1e  |..U....Go Root0.|
-000000a0  17 0d 31 36 30 31 30 31  30 30 30 30 30 30 5a 17  |..160101000000Z.|
-000000b0  0d 32 35 30 31 30 31 30  30 30 30 30 30 5a 30 1a  |.250101000000Z0.|
-000000c0  31 0b 30 09 06 03 55 04  0a 13 02 47 6f 31 0b 30  |1.0...U....Go1.0|
-000000d0  09 06 03 55 04 03 13 02  47 6f 30 81 9f 30 0d 06  |...U....Go0..0..|
-000000e0  09 2a 86 48 86 f7 0d 01  01 01 05 00 03 81 8d 00  |.*.H............|
-000000f0  30 81 89 02 81 81 00 db  46 7d 93 2e 12 27 06 48  |0.......F}...'.H|
-00000100  bc 06 28 21 ab 7e c4 b6  a2 5d fe 1e 52 45 88 7a  |..(!.~...]..RE.z|
-00000110  36 47 a5 08 0d 92 42 5b  c2 81 c0 be 97 79 98 40  |6G....B[.....y.@|
-00000120  fb 4f 6d 14 fd 2b 13 8b  c2 a5 2e 67 d8 d4 09 9e  |.Om..+.....g....|
-00000130  d6 22 38 b7 4a 0b 74 73  2b c2 34 f1 d1 93 e5 96  |."8.J.ts+.4.....|
-00000140  d9 74 7b f3 58 9f 6c 61  3c c0 b0 41 d4 d9 2b 2b  |.t{.X.la<..A..++|
-00000150  24 23 77 5b 1c 3b bd 75  5d ce 20 54 cf a1 63 87  |$#w[.;.u]. T..c.|
-00000160  1d 1e 24 c4 f3 1d 1a 50  8b aa b6 14 43 ed 97 a7  |..$....P....C...|
-00000170  75 62 f4 14 c8 52 d7 02  03 01 00 01 a3 81 93 30  |ub...R.........0|
-00000180  81 90 30 0e 06 03 55 1d  0f 01 01 ff 04 04 03 02  |..0...U.........|
-00000190  05 a0 30 1d 06 03 55 1d  25 04 16 30 14 06 08 2b  |..0...U.%..0...+|
-000001a0  06 01 05 05 07 03 01 06  08 2b 06 01 05 05 07 03  |.........+......|
-000001b0  02 30 0c 06 03 55 1d 13  01 01 ff 04 02 30 00 30  |.0...U.......0.0|
-000001c0  19 06 03 55 1d 0e 04 12  04 10 9f 91 16 1f 43 43  |...U..........CC|
-000001d0  3e 49 a6 de 6d b6 80 d7  9f 60 30 1b 06 03 55 1d  |>I..m....`0...U.|
-000001e0  23 04 14 30 12 80 10 48  13 49 4d 13 7e 16 31 bb  |#..0...H.IM.~.1.|
-000001f0  a3 01 d5 ac ab 6e 7b 30  19 06 03 55 1d 11 04 12  |.....n{0...U....|
-00000200  30 10 82 0e 65 78 61 6d  70 6c 65 2e 67 6f 6c 61  |0...example.gola|
-00000210  6e 67 30 0d 06 09 2a 86  48 86 f7 0d 01 01 0b 05  |ng0...*.H.......|
-00000220  00 03 81 81 00 9d 30 cc  40 2b 5b 50 a0 61 cb ba  |......0.@+[P.a..|
-00000230  e5 53 58 e1 ed 83 28 a9  58 1a a9 38 a4 95 a1 ac  |.SX...(.X..8....|
-00000240  31 5a 1a 84 66 3d 43 d3  2d d9 0b f2 97 df d3 20  |1Z..f=C.-...... |
-00000250  64 38 92 24 3a 00 bc cf  9c 7d b7 40 20 01 5f aa  |d8.$:....}.@ ._.|
-00000260  d3 16 61 09 a2 76 fd 13  c3 cc e1 0c 5c ee b1 87  |..a..v......\...|
-00000270  82 f1 6c 04 ed 73 bb b3  43 77 8d 0c 1c f1 0f a1  |..l..s..Cw......|
-00000280  d8 40 83 61 c9 4c 72 2b  9d ae db 46 06 06 4d f4  |.@.a.Lr+...F..M.|
-00000290  c1 b3 3e c0 d1 bd 42 d4  db fe 3d 13 60 84 5c 21  |..>...B...=.`.\!|
-000002a0  d3 3b e9 fa e7 16 03 03  00 ac 0c 00 00 a8 03 00  |.;..............|
-000002b0  1d 20 2f e5 7d a3 47 cd  62 43 15 28 da ac 5f bb  |. /.}.G.bC.(.._.|
-000002c0  29 07 30 ff f6 84 af c4  cf c2 ed 90 99 5f 58 cb  |).0.........._X.|
-000002d0  3b 74 04 01 00 80 8a b8  11 46 fc 88 8d f3 7d 22  |;t.......F....}"|
-000002e0  e0 1e d6 ac 45 79 e7 4d  fa 46 df 6d a2 b2 67 38  |....Ey.M.F.m..g8|
-000002f0  73 73 d9 20 9e 7c a1 a0  01 0c e7 e3 08 b2 f9 db  |ss. .|..........|
-00000300  97 82 c9 1e 27 33 f6 69  5b 8d 3c ca a8 a3 34 d5  |....'3.i[.<...4.|
-00000310  70 ac f6 62 6e 80 5d 5b  6e 1e bd 2d 27 d2 6d c3  |p..bn.][n..-'.m.|
-00000320  ca 08 8c fc ea 94 d2 99  49 d8 5f 30 6a a2 d9 c4  |........I._0j...|
-00000330  f2 17 d9 50 9e 82 9c 95  93 6d 7c b6 18 16 84 92  |...P.....m|.....|
-00000340  31 29 bd a0 df ed 09 ab  bf 32 ca c5 26 67 bb 28  |1).......2..&g.(|
-00000350  78 1b c6 5b 7a 21 16 03  03 00 04 0e 00 00 00     |x..[z!.........|
+00000030  1c 00 23 00 00 ff 01 00  01 00 00 10 00 09 00 07  |..#.............|
+00000040  06 70 72 6f 74 6f 31 00  0b 00 02 01 00 16 03 03  |.proto1.........|
+00000050  02 59 0b 00 02 55 00 02  52 00 02 4f 30 82 02 4b  |.Y...U..R..O0..K|
+00000060  30 82 01 b4 a0 03 02 01  02 02 09 00 e8 f0 9d 3f  |0..............?|
+00000070  e2 5b ea a6 30 0d 06 09  2a 86 48 86 f7 0d 01 01  |.[..0...*.H.....|
+00000080  0b 05 00 30 1f 31 0b 30  09 06 03 55 04 0a 13 02  |...0.1.0...U....|
+00000090  47 6f 31 10 30 0e 06 03  55 04 03 13 07 47 6f 20  |Go1.0...U....Go |
+000000a0  52 6f 6f 74 30 1e 17 0d  31 36 30 31 30 31 30 30  |Root0...16010100|
+000000b0  30 30 30 30 5a 17 0d 32  35 30 31 30 31 30 30 30  |0000Z..250101000|
+000000c0  30 30 30 5a 30 1a 31 0b  30 09 06 03 55 04 0a 13  |000Z0.1.0...U...|
+000000d0  02 47 6f 31 0b 30 09 06  03 55 04 03 13 02 47 6f  |.Go1.0...U....Go|
+000000e0  30 81 9f 30 0d 06 09 2a  86 48 86 f7 0d 01 01 01  |0..0...*.H......|
+000000f0  05 00 03 81 8d 00 30 81  89 02 81 81 00 db 46 7d  |......0.......F}|
+00000100  93 2e 12 27 06 48 bc 06  28 21 ab 7e c4 b6 a2 5d  |...'.H..(!.~...]|
+00000110  fe 1e 52 45 88 7a 36 47  a5 08 0d 92 42 5b c2 81  |..RE.z6G....B[..|
+00000120  c0 be 97 79 98 40 fb 4f  6d 14 fd 2b 13 8b c2 a5  |...y.@.Om..+....|
+00000130  2e 67 d8 d4 09 9e d6 22  38 b7 4a 0b 74 73 2b c2  |.g....."8.J.ts+.|
+00000140  34 f1 d1 93 e5 96 d9 74  7b f3 58 9f 6c 61 3c c0  |4......t{.X.la<.|
+00000150  b0 41 d4 d9 2b 2b 24 23  77 5b 1c 3b bd 75 5d ce  |.A..++$#w[.;.u].|
+00000160  20 54 cf a1 63 87 1d 1e  24 c4 f3 1d 1a 50 8b aa  | T..c...$....P..|
+00000170  b6 14 43 ed 97 a7 75 62  f4 14 c8 52 d7 02 03 01  |..C...ub...R....|
+00000180  00 01 a3 81 93 30 81 90  30 0e 06 03 55 1d 0f 01  |.....0..0...U...|
+00000190  01 ff 04 04 03 02 05 a0  30 1d 06 03 55 1d 25 04  |........0...U.%.|
+000001a0  16 30 14 06 08 2b 06 01  05 05 07 03 01 06 08 2b  |.0...+.........+|
+000001b0  06 01 05 05 07 03 02 30  0c 06 03 55 1d 13 01 01  |.......0...U....|
+000001c0  ff 04 02 30 00 30 19 06  03 55 1d 0e 04 12 04 10  |...0.0...U......|
+000001d0  9f 91 16 1f 43 43 3e 49  a6 de 6d b6 80 d7 9f 60  |....CC>I..m....`|
+000001e0  30 1b 06 03 55 1d 23 04  14 30 12 80 10 48 13 49  |0...U.#..0...H.I|
+000001f0  4d 13 7e 16 31 bb a3 01  d5 ac ab 6e 7b 30 19 06  |M.~.1......n{0..|
+00000200  03 55 1d 11 04 12 30 10  82 0e 65 78 61 6d 70 6c  |.U....0...exampl|
+00000210  65 2e 67 6f 6c 61 6e 67  30 0d 06 09 2a 86 48 86  |e.golang0...*.H.|
+00000220  f7 0d 01 01 0b 05 00 03  81 81 00 9d 30 cc 40 2b  |............0.@+|
+00000230  5b 50 a0 61 cb ba e5 53  58 e1 ed 83 28 a9 58 1a  |[P.a...SX...(.X.|
+00000240  a9 38 a4 95 a1 ac 31 5a  1a 84 66 3d 43 d3 2d d9  |.8....1Z..f=C.-.|
+00000250  0b f2 97 df d3 20 64 38  92 24 3a 00 bc cf 9c 7d  |..... d8.$:....}|
+00000260  b7 40 20 01 5f aa d3 16  61 09 a2 76 fd 13 c3 cc  |.@ ._...a..v....|
+00000270  e1 0c 5c ee b1 87 82 f1  6c 04 ed 73 bb b3 43 77  |..\.....l..s..Cw|
+00000280  8d 0c 1c f1 0f a1 d8 40  83 61 c9 4c 72 2b 9d ae  |.......@.a.Lr+..|
+00000290  db 46 06 06 4d f4 c1 b3  3e c0 d1 bd 42 d4 db fe  |.F..M...>...B...|
+000002a0  3d 13 60 84 5c 21 d3 3b  e9 fa e7 16 03 03 00 ac  |=.`.\!.;........|
+000002b0  0c 00 00 a8 03 00 1d 20  2f e5 7d a3 47 cd 62 43  |....... /.}.G.bC|
+000002c0  15 28 da ac 5f bb 29 07  30 ff f6 84 af c4 cf c2  |.(.._.).0.......|
+000002d0  ed 90 99 5f 58 cb 3b 74  08 04 00 80 b6 a2 61 f9  |..._X.;t......a.|
+000002e0  30 40 0b 5c 2c 92 b4 7b  e3 42 79 00 11 4d 6b 85  |0@.\,..{.By..Mk.|
+000002f0  df 2e 19 c2 fc a8 bc 16  0b c0 8d 02 55 99 a7 06  |............U...|
+00000300  fa 4c 4d 4c 27 de 6d 3d  1e 7a 6f 2c fc eb 9e 15  |.LML'.m=.zo,....|
+00000310  40 6f 0c 81 b3 e1 4d 78  b7 38 c6 50 8f 5b 63 ac  |@o....Mx.8.P.[c.|
+00000320  20 4f a6 06 aa 00 84 f5  01 f4 68 7a 5a 16 c5 da  | O........hzZ...|
+00000330  71 b2 4f 04 6e 59 88 14  8c 81 01 91 a8 e8 c1 18  |q.O.nY..........|
+00000340  a8 07 e8 7a f4 dc b9 e7  7f c5 ce 2c 32 8d fe d6  |...z.......,2...|
+00000350  1f 0e a5 f0 f4 c7 dd 39  13 a1 ca 6d 16 03 03 00  |.......9...m....|
+00000360  04 0e 00 00 00                                    |.....|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 69 44 46 d1 ad ea  |....%...! iDF...|
-00000010  ac b6 dc 35 6a b1 06 77  57 e8 94 58 49 15 4b 35  |...5j..wW..XI.K5|
-00000020  7c c9 40 a0 75 37 f0 77  79 0c 14 03 03 00 01 01  ||.@.u7.wy.......|
-00000030  16 03 03 00 28 2d 84 08  73 fc f7 b7 8d 07 63 4a  |....(-..s.....cJ|
-00000040  c4 42 37 b6 cd e1 87 9f  4f 3b 4e 8c a5 3f 95 67  |.B7.....O;N..?.g|
-00000050  74 02 9a f1 d1 39 0c 7b  7b 8e 82 79 28           |t....9.{{..y(|
+00000000  16 03 03 00 25 10 00 00  21 20 d7 fa 22 66 b4 c8  |....%...! .."f..|
+00000010  67 2c 45 93 bf 38 3a 13  21 45 d5 29 95 5b 0d 5c  |g,E..8:.!E.).[.\|
+00000020  79 d2 d6 9b ef bd 7d eb  a9 21 14 03 03 00 01 01  |y.....}..!......|
+00000030  16 03 03 00 28 a2 81 84  32 29 01 69 28 f9 56 cc  |....(...2).i(.V.|
+00000040  c9 72 51 5c 22 38 51 12  e1 55 a1 d6 8c cf 66 75  |.rQ\"8Q..U....fu|
+00000050  b4 bd 49 60 d0 e4 7e 9e  fe 56 d1 62 36           |..I`..~..V.b6|
 >>> Flow 4 (server to client)
 00000000  16 03 03 00 82 04 00 00  7e 00 00 00 00 00 78 50  |........~.....xP|
 00000010  46 ad c1 db a8 38 86 7b  2b bb fd d0 c3 42 3e 00  |F....8.{+....B>.|
 00000020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 94  |................|
-00000030  6f ec 80 83 61 f2 44 31  c6 93 15 b9 27 68 bc ab  |o...a.D1....'h..|
-00000040  b1 7f 48 8d 99 54 9c 9c  2e 36 11 6f 38 e7 3f 79  |..H..T...6.o8.?y|
-00000050  f9 f1 a5 5d 36 9a 1a 4c  7c f2 ad 84 f4 13 a7 be  |...]6..L|.......|
-00000060  e4 79 39 c6 31 33 94 81  cf d3 85 2e 29 02 44 a8  |.y9.13......).D.|
-00000070  61 4d 70 c3 dd ed b4 a2  f2 4b 44 c0 d5 af 19 8b  |aMp......KD.....|
-00000080  3f e5 fa fa ba dd 2d 14  03 03 00 01 01 16 03 03  |?.....-.........|
-00000090  00 28 00 00 00 00 00 00  00 00 f0 16 42 20 de 60  |.(..........B .`|
-000000a0  a4 a7 12 85 e5 cb b6 53  eb 76 7f 89 62 76 e8 46  |.......S.v..bv.F|
-000000b0  69 a6 bd 1e f5 5e 13 18  1d d3 17 03 03 00 25 00  |i....^........%.|
-000000c0  00 00 00 00 00 00 01 47  51 00 3f dd 64 0c 6f 43  |.......GQ.?.d.oC|
-000000d0  d1 cb 25 22 45 af ee 64  5f a7 6e cf 6c 7e 26 b3  |..%"E..d_.n.l~&.|
-000000e0  7e cd f0 71 15 03 03 00  1a 00 00 00 00 00 00 00  |~..q............|
-000000f0  02 01 f4 16 18 8e 29 27  34 58 c4 9a f8 a7 58 3a  |......)'4X....X:|
-00000100  2e 4a 32                                          |.J2|
+00000030  6f ec 80 83 61 cf 87 48  45 0d 9d a5 bf 38 b4 9f  |o...a..HE....8..|
+00000040  19 a9 cd ca 63 79 2d c3  ae 70 74 56 44 99 fb cc  |....cy-..ptVD...|
+00000050  7d 31 c2 67 75 fe 57 1b  fd 6b 2f cd df ec fa 5b  |}1.gu.W..k/....[|
+00000060  23 47 19 7e 84 33 94 d7  de e2 b9 ff 75 7d dc 80  |#G.~.3......u}..|
+00000070  9e 55 94 8e 15 94 70 8f  b5 21 0e 4e f7 4c e6 44  |.U....p..!.N.L.D|
+00000080  01 a3 9d 67 5f 05 73 14  03 03 00 01 01 16 03 03  |...g_.s.........|
+00000090  00 28 00 00 00 00 00 00  00 00 3a 49 dc e2 aa ce  |.(........:I....|
+000000a0  a8 43 27 08 a8 6b 7c ae  3f 07 18 e1 04 a9 e6 24  |.C'..k|.?......$|
+000000b0  0e 9e 0a 0f af a4 c3 6e  90 2d 17 03 03 00 25 00  |.......n.-....%.|
+000000c0  00 00 00 00 00 00 01 41  e1 9b 4c 8a 1a e8 10 bf  |.......A..L.....|
+000000d0  9f fd 76 e4 43 c2 cf 04  ee 68 6a 02 3c 97 fc ec  |..v.C....hj.<...|
+000000e0  c4 0a 74 1d 15 03 03 00  1a 00 00 00 00 00 00 00  |..t.............|
+000000f0  02 1c 9b b1 b6 07 fa 33  a8 70 03 d9 27 29 ea 61  |.......3.p..').a|
+00000100  96 c2 48                                          |..H|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-ALPN-NoMatch b/libgo/go/crypto/tls/testdata/Server-TLSv12-ALPN-NoMatch
index ced69a2..f8b88a6 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-ALPN-NoMatch
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-ALPN-NoMatch
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 e3 01 00 00  df 03 03 c8 61 61 3d 4e  |............aa=N|
-00000010  9a 5e 9e 0c 59 3f 23 e0  d8 ac d9 28 27 41 6a a0  |.^..Y?#....('Aj.|
-00000020  fb 7e d3 5f 20 aa 40 6c  df cb 07 00 00 38 c0 2c  |.~._ .@l.....8.,|
+00000000  16 03 01 00 e3 01 00 00  df 03 03 ed dd 7f 68 1d  |..............h.|
+00000010  9e 83 bc 08 01 39 8e 97  76 91 cb cb 24 73 15 f5  |.....9..v...$s..|
+00000020  17 17 db 78 69 ca e1 ed  0f fc bc 00 00 38 c0 2c  |...xi........8.,|
 00000030  c0 30 00 9f cc a9 cc a8  cc aa c0 2b c0 2f 00 9e  |.0.........+./..|
 00000040  c0 24 c0 28 00 6b c0 23  c0 27 00 67 c0 0a c0 14  |.$.(.k.#.'.g....|
 00000050  00 39 c0 09 c0 13 00 33  00 9d 00 9c 00 3d 00 3c  |.9.....3.....=.<|
@@ -15,82 +15,82 @@
 000000d0  04 01 05 01 06 01 03 03  02 03 03 01 02 01 03 02  |................|
 000000e0  02 02 04 02 05 02 06 02                           |........|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 35 02 00 00  31 03 03 00 00 00 00 00  |....5...1.......|
+00000000  16 03 03 00 3b 02 00 00  37 03 03 00 00 00 00 00  |....;...7.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 30 00 00  |...DOWNGRD...0..|
-00000030  09 00 23 00 00 ff 01 00  01 00 16 03 03 02 59 0b  |..#...........Y.|
-00000040  00 02 55 00 02 52 00 02  4f 30 82 02 4b 30 82 01  |..U..R..O0..K0..|
-00000050  b4 a0 03 02 01 02 02 09  00 e8 f0 9d 3f e2 5b ea  |............?.[.|
-00000060  a6 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |.0...*.H........|
-00000070  30 1f 31 0b 30 09 06 03  55 04 0a 13 02 47 6f 31  |0.1.0...U....Go1|
-00000080  10 30 0e 06 03 55 04 03  13 07 47 6f 20 52 6f 6f  |.0...U....Go Roo|
-00000090  74 30 1e 17 0d 31 36 30  31 30 31 30 30 30 30 30  |t0...16010100000|
-000000a0  30 5a 17 0d 32 35 30 31  30 31 30 30 30 30 30 30  |0Z..250101000000|
-000000b0  5a 30 1a 31 0b 30 09 06  03 55 04 0a 13 02 47 6f  |Z0.1.0...U....Go|
-000000c0  31 0b 30 09 06 03 55 04  03 13 02 47 6f 30 81 9f  |1.0...U....Go0..|
-000000d0  30 0d 06 09 2a 86 48 86  f7 0d 01 01 01 05 00 03  |0...*.H.........|
-000000e0  81 8d 00 30 81 89 02 81  81 00 db 46 7d 93 2e 12  |...0.......F}...|
-000000f0  27 06 48 bc 06 28 21 ab  7e c4 b6 a2 5d fe 1e 52  |'.H..(!.~...]..R|
-00000100  45 88 7a 36 47 a5 08 0d  92 42 5b c2 81 c0 be 97  |E.z6G....B[.....|
-00000110  79 98 40 fb 4f 6d 14 fd  2b 13 8b c2 a5 2e 67 d8  |y.@.Om..+.....g.|
-00000120  d4 09 9e d6 22 38 b7 4a  0b 74 73 2b c2 34 f1 d1  |...."8.J.ts+.4..|
-00000130  93 e5 96 d9 74 7b f3 58  9f 6c 61 3c c0 b0 41 d4  |....t{.X.la<..A.|
-00000140  d9 2b 2b 24 23 77 5b 1c  3b bd 75 5d ce 20 54 cf  |.++$#w[.;.u]. T.|
-00000150  a1 63 87 1d 1e 24 c4 f3  1d 1a 50 8b aa b6 14 43  |.c...$....P....C|
-00000160  ed 97 a7 75 62 f4 14 c8  52 d7 02 03 01 00 01 a3  |...ub...R.......|
-00000170  81 93 30 81 90 30 0e 06  03 55 1d 0f 01 01 ff 04  |..0..0...U......|
-00000180  04 03 02 05 a0 30 1d 06  03 55 1d 25 04 16 30 14  |.....0...U.%..0.|
-00000190  06 08 2b 06 01 05 05 07  03 01 06 08 2b 06 01 05  |..+.........+...|
-000001a0  05 07 03 02 30 0c 06 03  55 1d 13 01 01 ff 04 02  |....0...U.......|
-000001b0  30 00 30 19 06 03 55 1d  0e 04 12 04 10 9f 91 16  |0.0...U.........|
-000001c0  1f 43 43 3e 49 a6 de 6d  b6 80 d7 9f 60 30 1b 06  |.CC>I..m....`0..|
-000001d0  03 55 1d 23 04 14 30 12  80 10 48 13 49 4d 13 7e  |.U.#..0...H.IM.~|
-000001e0  16 31 bb a3 01 d5 ac ab  6e 7b 30 19 06 03 55 1d  |.1......n{0...U.|
-000001f0  11 04 12 30 10 82 0e 65  78 61 6d 70 6c 65 2e 67  |...0...example.g|
-00000200  6f 6c 61 6e 67 30 0d 06  09 2a 86 48 86 f7 0d 01  |olang0...*.H....|
-00000210  01 0b 05 00 03 81 81 00  9d 30 cc 40 2b 5b 50 a0  |.........0.@+[P.|
-00000220  61 cb ba e5 53 58 e1 ed  83 28 a9 58 1a a9 38 a4  |a...SX...(.X..8.|
-00000230  95 a1 ac 31 5a 1a 84 66  3d 43 d3 2d d9 0b f2 97  |...1Z..f=C.-....|
-00000240  df d3 20 64 38 92 24 3a  00 bc cf 9c 7d b7 40 20  |.. d8.$:....}.@ |
-00000250  01 5f aa d3 16 61 09 a2  76 fd 13 c3 cc e1 0c 5c  |._...a..v......\|
-00000260  ee b1 87 82 f1 6c 04 ed  73 bb b3 43 77 8d 0c 1c  |.....l..s..Cw...|
-00000270  f1 0f a1 d8 40 83 61 c9  4c 72 2b 9d ae db 46 06  |....@.a.Lr+...F.|
-00000280  06 4d f4 c1 b3 3e c0 d1  bd 42 d4 db fe 3d 13 60  |.M...>...B...=.`|
-00000290  84 5c 21 d3 3b e9 fa e7  16 03 03 00 ac 0c 00 00  |.\!.;...........|
-000002a0  a8 03 00 1d 20 2f e5 7d  a3 47 cd 62 43 15 28 da  |.... /.}.G.bC.(.|
-000002b0  ac 5f bb 29 07 30 ff f6  84 af c4 cf c2 ed 90 99  |._.).0..........|
-000002c0  5f 58 cb 3b 74 04 01 00  80 a6 d5 2b cf 48 32 3e  |_X.;t......+.H2>|
-000002d0  09 74 c1 e4 2a 69 49 d7  bc ce 5a b7 55 e5 e1 f4  |.t..*iI...Z.U...|
-000002e0  cc 3f 64 90 8a 58 e6 86  58 8b d7 94 60 d4 4e a9  |.?d..X..X...`.N.|
-000002f0  e4 e1 45 f1 7b 14 79 d0  9f 5c e3 17 79 61 f3 7a  |..E.{.y..\..ya.z|
-00000300  0e e6 cc 7c ff d8 61 29  51 eb 36 f6 f1 57 2e c0  |...|..a)Q.6..W..|
-00000310  43 de 54 fd 92 c7 d7 7a  54 77 f3 3f cf 53 b1 1f  |C.T....zTw.?.S..|
-00000320  57 53 7c 6d a3 74 b5 de  ae 0b 22 1f 2c 3e d0 41  |WS|m.t....".,>.A|
-00000330  04 7f df d8 d8 44 8d 8e  97 27 71 bc ff 6c 7f b6  |.....D...'q..l..|
-00000340  bd 05 17 2c 1f 84 c6 f1  64 16 03 03 00 04 0e 00  |...,....d.......|
-00000350  00 00                                             |..|
+00000030  0f 00 23 00 00 ff 01 00  01 00 00 0b 00 02 01 00  |..#.............|
+00000040  16 03 03 02 59 0b 00 02  55 00 02 52 00 02 4f 30  |....Y...U..R..O0|
+00000050  82 02 4b 30 82 01 b4 a0  03 02 01 02 02 09 00 e8  |..K0............|
+00000060  f0 9d 3f e2 5b ea a6 30  0d 06 09 2a 86 48 86 f7  |..?.[..0...*.H..|
+00000070  0d 01 01 0b 05 00 30 1f  31 0b 30 09 06 03 55 04  |......0.1.0...U.|
+00000080  0a 13 02 47 6f 31 10 30  0e 06 03 55 04 03 13 07  |...Go1.0...U....|
+00000090  47 6f 20 52 6f 6f 74 30  1e 17 0d 31 36 30 31 30  |Go Root0...16010|
+000000a0  31 30 30 30 30 30 30 5a  17 0d 32 35 30 31 30 31  |1000000Z..250101|
+000000b0  30 30 30 30 30 30 5a 30  1a 31 0b 30 09 06 03 55  |000000Z0.1.0...U|
+000000c0  04 0a 13 02 47 6f 31 0b  30 09 06 03 55 04 03 13  |....Go1.0...U...|
+000000d0  02 47 6f 30 81 9f 30 0d  06 09 2a 86 48 86 f7 0d  |.Go0..0...*.H...|
+000000e0  01 01 01 05 00 03 81 8d  00 30 81 89 02 81 81 00  |.........0......|
+000000f0  db 46 7d 93 2e 12 27 06  48 bc 06 28 21 ab 7e c4  |.F}...'.H..(!.~.|
+00000100  b6 a2 5d fe 1e 52 45 88  7a 36 47 a5 08 0d 92 42  |..]..RE.z6G....B|
+00000110  5b c2 81 c0 be 97 79 98  40 fb 4f 6d 14 fd 2b 13  |[.....y.@.Om..+.|
+00000120  8b c2 a5 2e 67 d8 d4 09  9e d6 22 38 b7 4a 0b 74  |....g....."8.J.t|
+00000130  73 2b c2 34 f1 d1 93 e5  96 d9 74 7b f3 58 9f 6c  |s+.4......t{.X.l|
+00000140  61 3c c0 b0 41 d4 d9 2b  2b 24 23 77 5b 1c 3b bd  |a<..A..++$#w[.;.|
+00000150  75 5d ce 20 54 cf a1 63  87 1d 1e 24 c4 f3 1d 1a  |u]. T..c...$....|
+00000160  50 8b aa b6 14 43 ed 97  a7 75 62 f4 14 c8 52 d7  |P....C...ub...R.|
+00000170  02 03 01 00 01 a3 81 93  30 81 90 30 0e 06 03 55  |........0..0...U|
+00000180  1d 0f 01 01 ff 04 04 03  02 05 a0 30 1d 06 03 55  |...........0...U|
+00000190  1d 25 04 16 30 14 06 08  2b 06 01 05 05 07 03 01  |.%..0...+.......|
+000001a0  06 08 2b 06 01 05 05 07  03 02 30 0c 06 03 55 1d  |..+.......0...U.|
+000001b0  13 01 01 ff 04 02 30 00  30 19 06 03 55 1d 0e 04  |......0.0...U...|
+000001c0  12 04 10 9f 91 16 1f 43  43 3e 49 a6 de 6d b6 80  |.......CC>I..m..|
+000001d0  d7 9f 60 30 1b 06 03 55  1d 23 04 14 30 12 80 10  |..`0...U.#..0...|
+000001e0  48 13 49 4d 13 7e 16 31  bb a3 01 d5 ac ab 6e 7b  |H.IM.~.1......n{|
+000001f0  30 19 06 03 55 1d 11 04  12 30 10 82 0e 65 78 61  |0...U....0...exa|
+00000200  6d 70 6c 65 2e 67 6f 6c  61 6e 67 30 0d 06 09 2a  |mple.golang0...*|
+00000210  86 48 86 f7 0d 01 01 0b  05 00 03 81 81 00 9d 30  |.H.............0|
+00000220  cc 40 2b 5b 50 a0 61 cb  ba e5 53 58 e1 ed 83 28  |.@+[P.a...SX...(|
+00000230  a9 58 1a a9 38 a4 95 a1  ac 31 5a 1a 84 66 3d 43  |.X..8....1Z..f=C|
+00000240  d3 2d d9 0b f2 97 df d3  20 64 38 92 24 3a 00 bc  |.-...... d8.$:..|
+00000250  cf 9c 7d b7 40 20 01 5f  aa d3 16 61 09 a2 76 fd  |..}.@ ._...a..v.|
+00000260  13 c3 cc e1 0c 5c ee b1  87 82 f1 6c 04 ed 73 bb  |.....\.....l..s.|
+00000270  b3 43 77 8d 0c 1c f1 0f  a1 d8 40 83 61 c9 4c 72  |.Cw.......@.a.Lr|
+00000280  2b 9d ae db 46 06 06 4d  f4 c1 b3 3e c0 d1 bd 42  |+...F..M...>...B|
+00000290  d4 db fe 3d 13 60 84 5c  21 d3 3b e9 fa e7 16 03  |...=.`.\!.;.....|
+000002a0  03 00 ac 0c 00 00 a8 03  00 1d 20 2f e5 7d a3 47  |.......... /.}.G|
+000002b0  cd 62 43 15 28 da ac 5f  bb 29 07 30 ff f6 84 af  |.bC.(.._.).0....|
+000002c0  c4 cf c2 ed 90 99 5f 58  cb 3b 74 08 04 00 80 59  |......_X.;t....Y|
+000002d0  85 20 dc b1 4c d2 17 4d  20 73 1a a7 f7 ab 40 52  |. ..L..M s....@R|
+000002e0  73 e7 02 21 eb 55 e2 c9  73 c0 c2 8a ed a3 fd 07  |s..!.U..s.......|
+000002f0  0b 5b 30 c2 1e 63 a1 c2  27 41 6c 5a ca 6e 12 d3  |.[0..c..'AlZ.n..|
+00000300  4a 87 15 29 7f 44 06 3d  14 76 98 45 e5 27 84 09  |J..).D.=.v.E.'..|
+00000310  44 be f3 c4 ce 79 31 e9  92 06 b6 d2 d9 19 d1 24  |D....y1........$|
+00000320  7d 44 6a 57 ea 9d 12 e3  e7 a1 16 86 10 fc 7a 66  |}DjW..........zf|
+00000330  00 3a f0 f0 ed e7 7c 20  82 0a 26 5d 92 79 8a 5b  |.:....| ..&].y.[|
+00000340  55 98 fc 1a c1 2f c0 07  ce b8 03 3a 01 da 62 16  |U..../.....:..b.|
+00000350  03 03 00 04 0e 00 00 00                           |........|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 c8 8e d1 4e a9 96  |....%...! ...N..|
-00000010  d4 73 45 b8 11 6e db db  00 f8 c0 c3 0e 96 62 c3  |.sE..n........b.|
-00000020  7c 04 3b 4a 40 d6 f6 81  e9 0d 14 03 03 00 01 01  ||.;J@...........|
-00000030  16 03 03 00 28 69 f9 fd  75 0d 63 bd ff 62 27 7b  |....(i..u.c..b'{|
-00000040  b2 28 b6 dc 55 c4 4b 10  f5 34 64 0d 85 a4 58 10  |.(..U.K..4d...X.|
-00000050  ee d6 93 77 00 da 6e ab  5e 9f f4 62 41           |...w..n.^..bA|
+00000000  16 03 03 00 25 10 00 00  21 20 d9 f2 e4 c5 cf 38  |....%...! .....8|
+00000010  23 30 2e b6 d9 0f 3b a2  d7 2f eb d5 74 a8 29 12  |#0....;../..t.).|
+00000020  5f 27 bc 81 96 6b 12 5a  bb 2f 14 03 03 00 01 01  |_'...k.Z./......|
+00000030  16 03 03 00 28 4b a1 12  ce 11 2a 0f 79 7c 56 eb  |....(K....*.y|V.|
+00000040  bb 9f 7d 91 c7 53 25 d6  ae 0b 98 f1 b5 ea ef 51  |..}..S%........Q|
+00000050  8b 3a fb d1 6c ae 3d bb  b7 67 d9 ba 36           |.:..l.=..g..6|
 >>> Flow 4 (server to client)
 00000000  16 03 03 00 82 04 00 00  7e 00 00 00 00 00 78 50  |........~.....xP|
 00000010  46 ad c1 db a8 38 86 7b  2b bb fd d0 c3 42 3e 00  |F....8.{+....B>.|
 00000020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 94  |................|
-00000030  6f ec 80 83 61 8d 11 1d  31 eb f3 00 20 b3 0f 72  |o...a...1... ..r|
-00000040  a0 7d 10 58 c8 5f da e2  cb 82 74 4d 99 0d bb 75  |.}.X._....tM...u|
-00000050  f3 cb 1a 19 11 ba 70 90  82 9e ab 73 be a9 96 58  |......p....s...X|
-00000060  96 b7 98 07 ba 33 94 81  e5 8e d1 39 08 10 01 df  |.....3.....9....|
-00000070  ba dd f7 b1 0c ce 71 96  f6 d2 8a 50 43 9a 56 b9  |......q....PC.V.|
-00000080  2c 29 d7 05 5b 0d ea 14  03 03 00 01 01 16 03 03  |,)..[...........|
-00000090  00 28 00 00 00 00 00 00  00 00 94 0f b0 0f 1a 43  |.(.............C|
-000000a0  e1 77 b5 36 55 21 8a d5  7e ae 37 eb c5 7b dc aa  |.w.6U!..~.7..{..|
-000000b0  28 1b 00 2f 31 e2 5e ca  54 89 17 03 03 00 25 00  |(../1.^.T.....%.|
-000000c0  00 00 00 00 00 00 01 eb  0e 33 bd 20 4f 18 db 26  |.........3. O..&|
-000000d0  b3 48 21 a6 87 e2 a4 1f  fe 84 ae 89 fe cf 41 20  |.H!...........A |
-000000e0  f9 d4 41 67 15 03 03 00  1a 00 00 00 00 00 00 00  |..Ag............|
-000000f0  02 f3 51 22 2e 4e 9e 87  4a 06 06 2f f6 88 0c cf  |..Q".N..J../....|
-00000100  6f 0f 9b                                          |o..|
+00000030  6f ec 80 83 61 40 f9 2b  9e a7 30 60 fb 46 36 c4  |o...a@.+..0`.F6.|
+00000040  0e b3 2a c4 73 64 2e 12  6c 0d f5 b9 6f 05 ae 27  |..*.sd..l...o..'|
+00000050  d7 a3 47 c5 67 31 3e 95  84 bf 42 e1 b9 0d 90 40  |..G.g1>...B....@|
+00000060  01 50 0d 32 4b 33 94 5c  a3 1d b9 db e5 c5 24 02  |.P.2K3.\......$.|
+00000070  48 31 ad 70 8e c7 e9 60  a5 7e ea 91 7b 01 79 06  |H1.p...`.~..{.y.|
+00000080  66 f9 c4 9d bd 65 a5 14  03 03 00 01 01 16 03 03  |f....e..........|
+00000090  00 28 00 00 00 00 00 00  00 00 32 be b5 c5 4d 83  |.(........2...M.|
+000000a0  41 97 f6 26 0f aa 06 35  d5 9e f8 12 1c 04 f7 b6  |A..&...5........|
+000000b0  16 9f f9 a4 43 b8 56 ea  4a 82 17 03 03 00 25 00  |....C.V.J.....%.|
+000000c0  00 00 00 00 00 00 01 1a  8e 6b 4a 69 02 56 46 eb  |.........kJi.VF.|
+000000d0  26 12 47 a3 9d 9a 8a 09  20 4a 6c b2 d0 6a 14 48  |&.G..... Jl..j.H|
+000000e0  be d5 f0 48 15 03 03 00  1a 00 00 00 00 00 00 00  |...H............|
+000000f0  02 0e 01 9d 60 90 01 60  99 a0 f5 df 6d 38 e5 76  |....`..`....m8.v|
+00000100  4d d7 d7                                          |M..|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-CipherSuiteCertPreferenceECDSA b/libgo/go/crypto/tls/testdata/Server-TLSv12-CipherSuiteCertPreferenceECDSA
index ce790fc..63e0edb 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-CipherSuiteCertPreferenceECDSA
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-CipherSuiteCertPreferenceECDSA
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 cb 01 00 00  c7 03 03 44 af b1 f3 8d  |...........D....|
-00000010  81 78 a9 28 a4 31 99 bb  66 17 63 ed 70 88 b7 bb  |.x.(.1..f.c.p...|
-00000020  da ef 4d 1d a2 a6 9e 18  96 97 ec 00 00 38 c0 2c  |..M..........8.,|
+00000000  16 03 01 00 cb 01 00 00  c7 03 03 3f 5d 09 25 4e  |...........?].%N|
+00000010  82 83 13 89 ba 89 43 d5  43 4f f1 c3 2f 08 77 39  |......C.CO../.w9|
+00000020  bf eb c7 1d 4b d6 85 c8  17 2f 83 00 00 38 c0 2c  |....K..../...8.,|
 00000030  c0 30 00 9f cc a9 cc a8  cc aa c0 2b c0 2f 00 9e  |.0.........+./..|
 00000040  c0 24 c0 28 00 6b c0 23  c0 27 00 67 c0 0a c0 14  |.$.(.k.#.'.g....|
 00000050  00 39 c0 09 c0 13 00 33  00 9d 00 9c 00 3d 00 3c  |.9.....3.....=.<|
@@ -13,75 +13,76 @@
 000000b0  08 0b 08 04 08 05 08 06  04 01 05 01 06 01 03 03  |................|
 000000c0  02 03 03 01 02 01 03 02  02 02 04 02 05 02 06 02  |................|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 0a 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  03 02 0e 0b 00 02 0a 00  |................|
-00000040  02 07 00 02 04 30 82 02  00 30 82 01 62 02 09 00  |.....0...0..b...|
-00000050  b8 bf 2d 47 a0 d2 eb f4  30 09 06 07 2a 86 48 ce  |..-G....0...*.H.|
-00000060  3d 04 01 30 45 31 0b 30  09 06 03 55 04 06 13 02  |=..0E1.0...U....|
-00000070  41 55 31 13 30 11 06 03  55 04 08 13 0a 53 6f 6d  |AU1.0...U....Som|
-00000080  65 2d 53 74 61 74 65 31  21 30 1f 06 03 55 04 0a  |e-State1!0...U..|
-00000090  13 18 49 6e 74 65 72 6e  65 74 20 57 69 64 67 69  |..Internet Widgi|
-000000a0  74 73 20 50 74 79 20 4c  74 64 30 1e 17 0d 31 32  |ts Pty Ltd0...12|
-000000b0  31 31 32 32 31 35 30 36  33 32 5a 17 0d 32 32 31  |1122150632Z..221|
-000000c0  31 32 30 31 35 30 36 33  32 5a 30 45 31 0b 30 09  |120150632Z0E1.0.|
-000000d0  06 03 55 04 06 13 02 41  55 31 13 30 11 06 03 55  |..U....AU1.0...U|
-000000e0  04 08 13 0a 53 6f 6d 65  2d 53 74 61 74 65 31 21  |....Some-State1!|
-000000f0  30 1f 06 03 55 04 0a 13  18 49 6e 74 65 72 6e 65  |0...U....Interne|
-00000100  74 20 57 69 64 67 69 74  73 20 50 74 79 20 4c 74  |t Widgits Pty Lt|
-00000110  64 30 81 9b 30 10 06 07  2a 86 48 ce 3d 02 01 06  |d0..0...*.H.=...|
-00000120  05 2b 81 04 00 23 03 81  86 00 04 00 c4 a1 ed be  |.+...#..........|
-00000130  98 f9 0b 48 73 36 7e c3  16 56 11 22 f2 3d 53 c3  |...Hs6~..V.".=S.|
-00000140  3b 4d 21 3d cd 6b 75 e6  f6 b0 dc 9a df 26 c1 bc  |;M!=.ku......&..|
-00000150  b2 87 f0 72 32 7c b3 64  2f 1c 90 bc ea 68 23 10  |...r2|.d/....h#.|
-00000160  7e fe e3 25 c0 48 3a 69  e0 28 6d d3 37 00 ef 04  |~..%.H:i.(m.7...|
-00000170  62 dd 0d a0 9c 70 62 83  d8 81 d3 64 31 aa 9e 97  |b....pb....d1...|
-00000180  31 bd 96 b0 68 c0 9b 23  de 76 64 3f 1a 5c 7f e9  |1...h..#.vd?.\..|
-00000190  12 0e 58 58 b6 5f 70 dd  9b d8 ea d5 d7 f5 d5 cc  |..XX._p.........|
-000001a0  b9 b6 9f 30 66 5b 66 9a  20 e2 27 e5 bf fe 3b 30  |...0f[f. .'...;0|
-000001b0  09 06 07 2a 86 48 ce 3d  04 01 03 81 8c 00 30 81  |...*.H.=......0.|
-000001c0  88 02 42 01 88 a2 4f eb  e2 45 c5 48 7d 1b ac f5  |..B...O..E.H}...|
-000001d0  ed 98 9d ae 47 70 c0 5e  1b b6 2f bd f1 b6 4d b7  |....Gp.^../...M.|
-000001e0  61 40 d3 11 a2 ce ee 0b  7e 92 7e ff 76 9d c3 3b  |a@......~.~.v..;|
-000001f0  7e a5 3f ce fa 10 e2 59  ec 47 2d 7c ac da 4e 97  |~.?....Y.G-|..N.|
-00000200  0e 15 a0 6f d0 02 42 01  4d fc be 67 13 9c 2d 05  |...o..B.M..g..-.|
-00000210  0e bd 3f a3 8c 25 c1 33  13 83 0d 94 06 bb d4 37  |..?..%.3.......7|
-00000220  7a f6 ec 7a c9 86 2e dd  d7 11 69 7f 85 7c 56 de  |z..z......i..|V.|
-00000230  fb 31 78 2b e4 c7 78 0d  ae cb be 9e 4e 36 24 31  |.1x+..x.....N6$1|
-00000240  7b 6a 0f 39 95 12 07 8f  2a 16 03 03 00 b6 0c 00  |{j.9....*.......|
-00000250  00 b2 03 00 1d 20 2f e5  7d a3 47 cd 62 43 15 28  |..... /.}.G.bC.(|
-00000260  da ac 5f bb 29 07 30 ff  f6 84 af c4 cf c2 ed 90  |.._.).0.........|
-00000270  99 5f 58 cb 3b 74 04 03  00 8a 30 81 87 02 42 01  |._X.;t....0...B.|
-00000280  96 02 ab 3d 94 2b dc 27  07 6b 1b 59 21 f2 88 3b  |...=.+.'.k.Y!..;|
-00000290  de 7a ce 4e d6 a5 47 30  0d 79 ae a9 e0 cf 9c e7  |.z.N..G0.y......|
-000002a0  0b 14 eb 44 bc a3 b9 5b  cf 01 f0 2f be 63 3e 9f  |...D...[.../.c>.|
-000002b0  63 32 4e ce 4d 4c 70 86  dd 16 09 70 f7 3e 3b f6  |c2N.MLp....p.>;.|
-000002c0  34 02 41 0a 0f a9 75 dd  a8 21 40 8f 05 82 2f e0  |4.A...u..!@.../.|
-000002d0  09 37 08 0a b6 a4 8a 1c  fd 3e 4d 1b e3 19 e1 4d  |.7.......>M....M|
-000002e0  15 90 65 00 2f e0 15 bf  2b 23 b6 2b 44 7a 3f 1a  |..e./...+#.+Dz?.|
-000002f0  4c 82 3a 95 b9 ff 37 0a  1e f2 63 e3 b1 71 81 36  |L.:...7...c..q.6|
-00000300  6d 23 3e 53 16 03 03 00  04 0e 00 00 00           |m#>S.........|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  0e 0b 00 02 0a 00 02 07  00 02 04 30 82 02 00 30  |...........0...0|
+00000050  82 01 62 02 09 00 b8 bf  2d 47 a0 d2 eb f4 30 09  |..b.....-G....0.|
+00000060  06 07 2a 86 48 ce 3d 04  01 30 45 31 0b 30 09 06  |..*.H.=..0E1.0..|
+00000070  03 55 04 06 13 02 41 55  31 13 30 11 06 03 55 04  |.U....AU1.0...U.|
+00000080  08 13 0a 53 6f 6d 65 2d  53 74 61 74 65 31 21 30  |...Some-State1!0|
+00000090  1f 06 03 55 04 0a 13 18  49 6e 74 65 72 6e 65 74  |...U....Internet|
+000000a0  20 57 69 64 67 69 74 73  20 50 74 79 20 4c 74 64  | Widgits Pty Ltd|
+000000b0  30 1e 17 0d 31 32 31 31  32 32 31 35 30 36 33 32  |0...121122150632|
+000000c0  5a 17 0d 32 32 31 31 32  30 31 35 30 36 33 32 5a  |Z..221120150632Z|
+000000d0  30 45 31 0b 30 09 06 03  55 04 06 13 02 41 55 31  |0E1.0...U....AU1|
+000000e0  13 30 11 06 03 55 04 08  13 0a 53 6f 6d 65 2d 53  |.0...U....Some-S|
+000000f0  74 61 74 65 31 21 30 1f  06 03 55 04 0a 13 18 49  |tate1!0...U....I|
+00000100  6e 74 65 72 6e 65 74 20  57 69 64 67 69 74 73 20  |nternet Widgits |
+00000110  50 74 79 20 4c 74 64 30  81 9b 30 10 06 07 2a 86  |Pty Ltd0..0...*.|
+00000120  48 ce 3d 02 01 06 05 2b  81 04 00 23 03 81 86 00  |H.=....+...#....|
+00000130  04 00 c4 a1 ed be 98 f9  0b 48 73 36 7e c3 16 56  |.........Hs6~..V|
+00000140  11 22 f2 3d 53 c3 3b 4d  21 3d cd 6b 75 e6 f6 b0  |.".=S.;M!=.ku...|
+00000150  dc 9a df 26 c1 bc b2 87  f0 72 32 7c b3 64 2f 1c  |...&.....r2|.d/.|
+00000160  90 bc ea 68 23 10 7e fe  e3 25 c0 48 3a 69 e0 28  |...h#.~..%.H:i.(|
+00000170  6d d3 37 00 ef 04 62 dd  0d a0 9c 70 62 83 d8 81  |m.7...b....pb...|
+00000180  d3 64 31 aa 9e 97 31 bd  96 b0 68 c0 9b 23 de 76  |.d1...1...h..#.v|
+00000190  64 3f 1a 5c 7f e9 12 0e  58 58 b6 5f 70 dd 9b d8  |d?.\....XX._p...|
+000001a0  ea d5 d7 f5 d5 cc b9 b6  9f 30 66 5b 66 9a 20 e2  |.........0f[f. .|
+000001b0  27 e5 bf fe 3b 30 09 06  07 2a 86 48 ce 3d 04 01  |'...;0...*.H.=..|
+000001c0  03 81 8c 00 30 81 88 02  42 01 88 a2 4f eb e2 45  |....0...B...O..E|
+000001d0  c5 48 7d 1b ac f5 ed 98  9d ae 47 70 c0 5e 1b b6  |.H}.......Gp.^..|
+000001e0  2f bd f1 b6 4d b7 61 40  d3 11 a2 ce ee 0b 7e 92  |/...M.a@......~.|
+000001f0  7e ff 76 9d c3 3b 7e a5  3f ce fa 10 e2 59 ec 47  |~.v..;~.?....Y.G|
+00000200  2d 7c ac da 4e 97 0e 15  a0 6f d0 02 42 01 4d fc  |-|..N....o..B.M.|
+00000210  be 67 13 9c 2d 05 0e bd  3f a3 8c 25 c1 33 13 83  |.g..-...?..%.3..|
+00000220  0d 94 06 bb d4 37 7a f6  ec 7a c9 86 2e dd d7 11  |.....7z..z......|
+00000230  69 7f 85 7c 56 de fb 31  78 2b e4 c7 78 0d ae cb  |i..|V..1x+..x...|
+00000240  be 9e 4e 36 24 31 7b 6a  0f 39 95 12 07 8f 2a 16  |..N6$1{j.9....*.|
+00000250  03 03 00 b7 0c 00 00 b3  03 00 1d 20 2f e5 7d a3  |........... /.}.|
+00000260  47 cd 62 43 15 28 da ac  5f bb 29 07 30 ff f6 84  |G.bC.(.._.).0...|
+00000270  af c4 cf c2 ed 90 99 5f  58 cb 3b 74 04 03 00 8b  |......._X.;t....|
+00000280  30 81 88 02 42 01 5c 2a  30 4f 9f dc df a8 33 06  |0...B.\*0O....3.|
+00000290  3b bc 35 46 6a 9c a3 a1  26 ec 42 29 bf 63 b3 9b  |;.5Fj...&.B).c..|
+000002a0  8c bf 7b 07 8d 28 eb 41  68 7a 8a 1b f3 de a9 dc  |..{..(.Ahz......|
+000002b0  1e d1 21 3c 4d 24 df 89  90 b6 f2 fb ad 60 d2 27  |..!<M$.......`.'|
+000002c0  96 6d a2 b6 9b 48 e6 02  42 00 f1 c8 c2 f4 ee 4a  |.m...H..B......J|
+000002d0  8f 08 c5 09 05 e9 bf 7f  aa b6 3e 56 e9 98 46 b4  |..........>V..F.|
+000002e0  b4 e5 90 72 ed af 71 0d  fb e6 39 2f d5 4b 73 ba  |...r..q...9/.Ks.|
+000002f0  85 d2 a4 bf 99 74 d7 81  eb 3e 69 4d f0 12 1e 3c  |.....t...>iM...<|
+00000300  53 ca f0 35 85 ef ff ed  cc 0f f7 16 03 03 00 04  |S..5............|
+00000310  0e 00 00 00                                       |....|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 e8 92 71 c8 12 80  |....%...! ..q...|
-00000010  88 d0 7f 00 71 76 83 dc  e6 e3 4c b6 e2 8a d2 0d  |....qv....L.....|
-00000020  61 7e 36 d9 a7 1d 6c 92  75 46 14 03 03 00 01 01  |a~6...l.uF......|
-00000030  16 03 03 00 40 86 48 1a  6f 89 29 b3 8b c1 b6 ad  |....@.H.o.).....|
-00000040  b5 6f af eb 32 44 e9 8f  c2 43 58 d1 71 ad 1f 13  |.o..2D...CX.q...|
-00000050  2b e3 5c bc d5 07 8a 29  9d 30 40 cd 73 2d 0a 80  |+.\....).0@.s-..|
-00000060  49 82 d5 2a 79 eb a5 3c  2e 69 ee 1a 3a d8 1a 69  |I..*y..<.i..:..i|
-00000070  63 a6 30 8e 3f                                    |c.0.?|
+00000000  16 03 03 00 25 10 00 00  21 20 b8 a6 ed 33 20 59  |....%...! ...3 Y|
+00000010  76 0b 7c 87 53 f1 12 c1  46 d9 db 68 c0 6f d6 30  |v.|.S...F..h.o.0|
+00000020  ea e0 64 04 54 7a 4c 95  03 41 14 03 03 00 01 01  |..d.TzL..A......|
+00000030  16 03 03 00 40 c0 70 29  39 a0 8a bd 59 58 88 44  |....@.p)9...YX.D|
+00000040  ea 10 b4 79 3e 0e 72 b7  2a 03 6d 4d 5a 24 f5 c0  |...y>.r.*.mMZ$..|
+00000050  4e e5 19 f0 fb 66 ca 97  89 4b 67 dc bb 19 cd 0b  |N....f...Kg.....|
+00000060  6e 74 01 d3 a4 9a ab af  8e 44 10 99 ac ff 9e 9e  |nt.......D......|
+00000070  17 04 56 78 55                                    |..VxU|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 33 ab 9b d6 4a  |...........3...J|
-00000020  bb e7 06 b0 d4 7e 1a 7f  78 cb d1 7a 44 26 a7 e6  |.....~..x..zD&..|
-00000030  93 42 ae ec d3 44 0c dd  b0 74 1b d8 99 75 a2 69  |.B...D...t...u.i|
-00000040  98 d4 ed 2c b8 a0 26 69  80 1c 7f 17 03 03 00 40  |...,..&i.......@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 01 a0 6b 2c c5  |.............k,.|
+00000020  7e 83 70 b5 2c 8c 43 b6  8b 2e 18 2a 1d be 11 6d  |~.p.,.C....*...m|
+00000030  13 f9 ba b5 de db 01 2a  64 d9 5b 24 c9 61 a1 4d  |.......*d.[$.a.M|
+00000040  11 bb fc b1 86 61 b0 04  a9 cd 1e 17 03 03 00 40  |.....a.........@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  a5 0b 57 10 11 ca 9e fb  f4 8b 24 86 c7 58 b9 4c  |..W.......$..X.L|
-00000070  9a 1d 6a 60 2b 7c b1 21  7e 00 f2 e5 00 6f ab 04  |..j`+|.!~....o..|
-00000080  2f 14 97 ae 70 05 0d 18  31 57 51 4a 0c c7 10 84  |/...p...1WQJ....|
+00000060  d8 98 85 b4 cb 61 39 69  2f b1 1f 24 c1 5a 4f e3  |.....a9i/..$.ZO.|
+00000070  0b 20 5d 6c 3f 3f 82 3a  a3 8a b3 cf e9 41 bb 60  |. ]l??.:.....A.`|
+00000080  ed b6 67 a0 76 39 ab 93  a5 35 d0 42 b3 a7 4c 92  |..g.v9...5.B..L.|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 d2 56 41  e1 58 30 76 2e 6e 6f 13  |......VA.X0v.no.|
-000000b0  3b 72 5d bf c4 5c ef 63  2e 0a f0 6a 3a 98 ec 97  |;r]..\.c...j:...|
-000000c0  07 b3 08 94 0d                                    |.....|
+000000a0  00 00 00 00 00 c7 0d 06  b2 2b 73 ab ed 16 88 6f  |.........+s....o|
+000000b0  62 77 fb 48 e4 5e 6d 7e  24 02 b6 08 fa 46 c8 76  |bw.H.^m~$....F.v|
+000000c0  18 fc f4 c4 08                                    |.....|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-CipherSuiteCertPreferenceRSA b/libgo/go/crypto/tls/testdata/Server-TLSv12-CipherSuiteCertPreferenceRSA
index 8959740..802aa1a 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-CipherSuiteCertPreferenceRSA
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-CipherSuiteCertPreferenceRSA
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 cb 01 00 00  c7 03 03 a6 9c 71 27 48  |.............q'H|
-00000010  24 f6 58 48 c8 2c 32 88  c9 01 eb f0 87 14 ba 7f  |$.XH.,2.........|
-00000020  f0 53 2d fd a1 b2 0a 72  e4 48 8e 00 00 38 c0 2c  |.S-....r.H...8.,|
+00000000  16 03 01 00 cb 01 00 00  c7 03 03 27 8a e9 f3 58  |...........'...X|
+00000010  5a 08 90 d6 d4 97 23 b6  a7 92 73 3a a3 3c c1 a1  |Z.....#...s:.<..|
+00000020  ca 06 23 c8 ed 4a 19 26  73 c9 62 00 00 38 c0 2c  |..#..J.&s.b..8.,|
 00000030  c0 30 00 9f cc a9 cc a8  cc aa c0 2b c0 2f 00 9e  |.0.........+./..|
 00000040  c0 24 c0 28 00 6b c0 23  c0 27 00 67 c0 0a c0 14  |.$.(.k.#.'.g....|
 00000050  00 39 c0 09 c0 13 00 33  00 9d 00 9c 00 3d 00 3c  |.9.....3.....=.<|
@@ -13,79 +13,80 @@
 000000b0  08 0b 08 04 08 05 08 06  04 01 05 01 06 01 03 03  |................|
 000000c0  02 03 03 01 02 01 03 02  02 02 04 02 05 02 06 02  |................|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 14 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  ac 0c 00 00 a8 03 00 1d  |;...............|
-000002a0  20 2f e5 7d a3 47 cd 62  43 15 28 da ac 5f bb 29  | /.}.G.bC.(.._.)|
-000002b0  07 30 ff f6 84 af c4 cf  c2 ed 90 99 5f 58 cb 3b  |.0.........._X.;|
-000002c0  74 04 01 00 80 10 af cc  7e b1 33 b1 87 08 e9 d5  |t.......~.3.....|
-000002d0  b0 fc 70 a6 b6 f9 20 92  60 b2 01 90 e3 e2 0b 71  |..p... .`......q|
-000002e0  4c b9 91 4e c7 28 60 cb  b5 b7 d1 91 1f 01 f3 93  |L..N.(`.........|
-000002f0  56 5b 14 91 bb e4 95 18  f5 0c 23 47 e6 4e d0 9e  |V[........#G.N..|
-00000300  2f 1a 4a d1 f5 08 71 c0  08 70 75 78 c1 c7 89 e4  |/.J...q..pux....|
-00000310  b2 3c b9 49 c8 95 c7 ba  5b b0 04 20 18 b1 5a 3e  |.<.I....[.. ..Z>|
-00000320  2b 9f 7b 2b 9c f8 34 69  4b c2 a8 2f d1 73 ec d1  |+.{+..4iK../.s..|
-00000330  c9 22 19 6b bc aa e4 d3  89 73 5a 88 27 75 4a b6  |.".k.....sZ.'uJ.|
-00000340  c3 6d 32 b0 a2 16 03 03  00 04 0e 00 00 00        |.m2...........|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 ac 0c  |.`.\!.;.........|
+000002a0  00 00 a8 03 00 1d 20 2f  e5 7d a3 47 cd 62 43 15  |...... /.}.G.bC.|
+000002b0  28 da ac 5f bb 29 07 30  ff f6 84 af c4 cf c2 ed  |(.._.).0........|
+000002c0  90 99 5f 58 cb 3b 74 08  04 00 80 42 86 d0 0a 5b  |.._X.;t....B...[|
+000002d0  d7 97 20 4d be 16 b8 eb  51 66 28 3b f9 45 35 f5  |.. M....Qf(;.E5.|
+000002e0  de 1d 28 c9 36 63 5b 7b  f6 a7 64 79 fb 39 20 c3  |..(.6c[{..dy.9 .|
+000002f0  dd db 38 3e af 89 ce 91  f7 bd 51 b4 5e 01 d8 9b  |..8>......Q.^...|
+00000300  54 62 58 24 3b c2 43 59  a4 11 1a 2b 67 c5 5f 79  |TbX$;.CY...+g._y|
+00000310  fe 68 9d c7 e6 8b 36 8b  f9 cb 00 b0 b3 0f 52 fb  |.h....6.......R.|
+00000320  fe a5 e6 c6 26 9b d1 a2  17 4e e2 58 7f b2 80 78  |....&....N.X...x|
+00000330  10 b4 0a 47 e1 18 92 d4  a5 5a 86 06 36 ca f7 b6  |...G.....Z..6...|
+00000340  1c 83 81 0e eb 32 7d fe  06 c5 03 16 03 03 00 04  |.....2}.........|
+00000350  0e 00 00 00                                       |....|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 f3 07 eb 86 c5 e2  |....%...! ......|
-00000010  28 7c be 7e 34 8d c5 74  19 0b b3 cc ce ce 90 3f  |(|.~4..t.......?|
-00000020  ac 06 c8 9f 79 3d 42 08  e2 01 14 03 03 00 01 01  |....y=B.........|
-00000030  16 03 03 00 40 9b 6d a1  1e ca fb 27 67 ca 7b 57  |....@.m....'g.{W|
-00000040  60 f4 60 95 b4 56 fd 97  cb 58 c5 cb bc 04 87 1d  |`.`..V...X......|
-00000050  74 a5 98 ec 3c 6f 25 5a  ef c5 af 21 4b 2e 5c 97  |t...<o%Z...!K.\.|
-00000060  52 35 eb c8 10 a7 3e 00  94 f5 46 cc 8e 19 fe f7  |R5....>...F.....|
-00000070  08 62 88 25 1f                                    |.b.%.|
+00000000  16 03 03 00 25 10 00 00  21 20 14 7f fb 7d 0c ef  |....%...! ...}..|
+00000010  48 c4 8f 75 24 19 5f ee  5f 51 08 35 74 cf c3 ea  |H..u$._._Q.5t...|
+00000020  67 20 c4 f9 49 b2 cf 69  5a 77 14 03 03 00 01 01  |g ..I..iZw......|
+00000030  16 03 03 00 40 2b d2 f4  dc 36 98 ef 1d 43 f9 3e  |....@+...6...C.>|
+00000040  83 33 c0 71 a6 e3 ac f1  3c cc 94 e4 d0 fe 81 bc  |.3.q....<.......|
+00000050  94 56 15 eb 6a 7b 17 33  e1 a0 ef d5 7a 86 af ea  |.V..j{.3....z...|
+00000060  1f bb d5 8c 80 56 d5 e4  08 cd 68 bf c0 53 c2 56  |.....V....h..S.V|
+00000070  aa b3 38 1e 4e                                    |..8.N|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 8e a1 9a 44 d4  |..............D.|
-00000020  98 c6 5f 46 2f d9 e5 ac  78 b5 91 3f 15 89 6f fb  |.._F/...x..?..o.|
-00000030  39 79 65 0b c7 09 c7 fc  eb 40 6d 8e 6d b7 8b 94  |9ye......@m.m...|
-00000040  6f 30 5a a6 4c 9d 2a 13  ed f6 f4 17 03 03 00 40  |o0Z.L.*........@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 45 07 c3 ba 8c  |...........E....|
+00000020  d8 9f b6 f1 6a 14 bb b1  4e 84 3f 25 6a 3d ef f6  |....j...N.?%j=..|
+00000030  88 89 1a 91 22 ef e3 ed  ba 2a a3 7c 5b db e0 1d  |...."....*.|[...|
+00000040  b5 8d 7a ed e7 ad e1 31  b2 12 f5 17 03 03 00 40  |..z....1.......@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  5b 96 f1 fa c4 5b a3 22  74 ef 8c 34 52 50 c6 86  |[....[."t..4RP..|
-00000070  32 19 40 b8 80 54 d9 c2  6a 43 a2 c2 fe 07 dd 37  |2.@..T..jC.....7|
-00000080  89 62 bd 68 6a 1e e7 d9  1f ba 3a 1a 83 13 1f 7c  |.b.hj.....:....||
+00000060  a6 f3 0b 33 f7 7a 7c fb  fb b5 e6 eb 6e 0a 26 aa  |...3.z|.....n.&.|
+00000070  06 3b a6 bc 08 e5 3a b6  c9 a3 f3 77 28 93 45 08  |.;....:....w(.E.|
+00000080  1d 54 5e a3 92 cd 89 a3  e6 34 ec 52 70 c0 97 3c  |.T^......4.Rp..<|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 92 f0 3e  2e 3c d2 62 ce e8 2e 12  |.......>.<.b....|
-000000b0  4e 1e 77 ba ff 61 97 f9  8e e8 d1 1b a0 00 3f 2c  |N.w..a........?,|
-000000c0  8c 5c 10 ac 05                                    |.\...|
+000000a0  00 00 00 00 00 2d 0d 96  57 b8 6f 90 1e 84 4d 35  |.....-..W.o...M5|
+000000b0  91 52 42 6b 8d a3 6b 21  22 60 1a c9 38 7f 5a ef  |.RBk..k!"`..8.Z.|
+000000c0  6e dd 84 06 79                                    |n...y|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndECDSAGiven b/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndECDSAGiven
index b65a7b7..3177653 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndECDSAGiven
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndECDSAGiven
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 97 01 00 00  93 03 03 75 b5 bf db ae  |...........u....|
-00000010  ee 3a 8d d7 23 e1 22 9a  42 d9 7a de ac 41 81 60  |.:..#.".B.z..A.`|
-00000020  4d 05 6e f1 11 c5 c0 de  21 46 d2 00 00 04 00 2f  |M.n.....!F...../|
+00000000  16 03 01 00 97 01 00 00  93 03 03 a8 4e d1 44 14  |............N.D.|
+00000010  46 11 b2 4f 03 b6 6f 89  cf fd dd 9b 6a dd 4d 1e  |F..O..o.....j.M.|
+00000020  51 02 a2 10 d9 d3 a1 d8  54 a2 4a 00 00 04 00 2f  |Q.......T.J..../|
 00000030  00 ff 01 00 00 66 00 00  00 0e 00 0c 00 00 09 31  |.....f.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,50 +10,51 @@
 00000080  08 05 08 06 04 01 05 01  06 01 03 03 02 03 03 01  |................|
 00000090  02 01 03 02 02 02 04 02  05 02 06 02              |............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  1d 0d 00 00 19 02 01 40  |;..............@|
-000002a0  00 12 04 01 04 03 08 07  05 01 06 01 05 03 06 03  |................|
-000002b0  02 01 02 03 00 00 16 03  03 00 04 0e 00 00 00     |...............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 23 0d  |.`.\!.;.......#.|
+000002a0  00 00 1f 02 01 40 00 18  08 04 04 03 08 07 08 05  |.....@..........|
+000002b0  08 06 04 01 05 01 06 01  05 03 06 03 02 01 02 03  |................|
+000002c0  00 00 16 03 03 00 04 0e  00 00 00                 |...........|
 >>> Flow 3 (client to server)
 00000000  16 03 03 02 0a 0b 00 02  06 00 02 03 00 02 00 30  |...............0|
 00000010  82 01 fc 30 82 01 5e 02  09 00 9a 30 84 6c 26 35  |...0..^....0.l&5|
@@ -88,40 +89,40 @@
 000001e0  be e8 91 b3 da 1a f5 5d  a3 23 f5 26 8b 45 70 8d  |.......].#.&.Ep.|
 000001f0  65 62 9b 7e 01 99 3d 18  f6 10 9a 38 61 9b 2e 57  |eb.~..=....8a..W|
 00000200  e4 fa cc b1 8a ce e2 23  a0 87 f0 e1 67 51 eb 16  |.......#....gQ..|
-00000210  03 03 00 86 10 00 00 82  00 80 6c 1d a3 55 fb a0  |..........l..U..|
-00000220  be 6f 49 64 67 b8 da 1c  27 91 f4 5d d9 9d 7e f0  |.oIdg...'..]..~.|
-00000230  53 86 15 96 93 b2 0d 11  1a cf 3c 76 5e 76 24 ac  |S.........<v^v$.|
-00000240  f5 de c0 a3 d7 be db aa  86 f4 ec f4 39 a5 96 b8  |............9...|
-00000250  6a 88 cf b0 cd 02 b4 56  2d 5a 35 4e 15 95 21 94  |j......V-Z5N..!.|
-00000260  ac 2e 90 57 94 b9 a2 31  fe a9 3e 77 4a f2 5f fe  |...W...1..>wJ._.|
-00000270  5f 51 0d 12 61 19 f6 fe  7d f7 b7 06 0d b1 de 09  |_Q..a...}.......|
-00000280  45 17 4b 2a 15 97 ce 96  c5 f5 27 95 fb e8 c5 67  |E.K*......'....g|
-00000290  5e cb 8c 98 c7 c5 68 41  36 99 16 03 03 00 91 0f  |^.....hA6.......|
-000002a0  00 00 8d 04 03 00 89 30  81 86 02 41 48 35 40 6e  |.......0...AH5@n|
-000002b0  03 2a 43 fe f8 a9 c5 f9  c7 05 f8 db 13 5e ee bb  |.*C..........^..|
-000002c0  a8 59 5b fc b4 5d 0a ec  32 18 d5 a0 01 d5 81 a5  |.Y[..]..2.......|
-000002d0  f3 8e 4f 91 54 c7 8f a1  c1 77 4c 94 5c e4 68 c2  |..O.T....wL.\.h.|
-000002e0  0b 22 e2 70 0c 32 e2 9d  6e 47 e4 0d f7 02 41 2d  |.".p.2..nG....A-|
-000002f0  0e bb 28 47 90 23 68 f2  fd 9e 7d 13 f0 ad 40 ed  |..(G.#h...}...@.|
-00000300  cb 32 e5 9d 5e a7 e1 12  d7 de 10 bc 93 df cb 03  |.2..^...........|
-00000310  4e 16 5a cf 8f 25 1e 39  ff 7c 9f 59 55 f0 df b4  |N.Z..%.9.|.YU...|
-00000320  ce 43 6d 15 8f e3 ef 76  5d 0d a9 31 a9 24 c6 58  |.Cm....v]..1.$.X|
-00000330  14 03 03 00 01 01 16 03  03 00 40 71 ca 10 08 a9  |..........@q....|
-00000340  1a f1 78 9d 6f 2d 76 1c  b0 2a f8 26 d2 f6 89 db  |..x.o-v..*.&....|
-00000350  25 50 63 cc bf 12 cb fb  39 93 91 7f 7f f7 e4 fe  |%Pc.....9.......|
-00000360  fc 28 d0 01 3b e9 f9 1b  6a 77 db 16 14 71 3d 35  |.(..;...jw...q=5|
-00000370  67 de b8 1d e3 4a 02 bc  cf 0a a6                 |g....J.....|
+00000210  03 03 00 86 10 00 00 82  00 80 94 7b c5 f9 b7 fa  |...........{....|
+00000220  08 d2 59 d4 d5 ae 30 7f  9b d6 97 8e f8 ab 5c dc  |..Y...0.......\.|
+00000230  b2 f2 f7 c2 f3 4a 2d c0  88 11 84 42 bf fe b9 ca  |.....J-....B....|
+00000240  6f 6e b2 a4 c3 50 f1 bc  22 6e 12 bf 18 e2 12 1c  |on...P.."n......|
+00000250  c2 53 f5 b4 03 f2 c8 a4  a6 29 da cd 3e 62 6d c0  |.S.......)..>bm.|
+00000260  34 58 5d 3b 1c 84 6e a6  d7 7c 63 67 0c 1a 7c a4  |4X];..n..|cg..|.|
+00000270  ea 66 ce 70 6c 6d fd c9  d5 b5 63 38 93 02 7c 3b  |.f.plm....c8..|;|
+00000280  b2 0b 62 ff 32 2d 6a d0  59 27 e6 34 cc a6 25 aa  |..b.2-j.Y'.4..%.|
+00000290  5b 77 4a f6 79 72 1f bf  30 f1 16 03 03 00 92 0f  |[wJ.yr..0.......|
+000002a0  00 00 8e 04 03 00 8a 30  81 87 02 42 01 dc 84 5b  |.......0...B...[|
+000002b0  f3 56 ac 18 07 45 f0 3d  2c 96 e8 ff 12 c0 59 0e  |.V...E.=,.....Y.|
+000002c0  de ef 93 98 88 09 dd 82  14 65 20 72 a9 f2 bc 2d  |.........e r...-|
+000002d0  7a d1 d7 f0 fe 99 f1 80  54 b8 30 b2 b9 01 3d a6  |z.......T.0...=.|
+000002e0  f2 c0 cd 8e 68 a2 e7 92  85 aa 13 8f 49 1c 02 41  |....h.......I..A|
+000002f0  2c 4c 7d f6 27 ea 31 e1  4d 68 b3 39 4a 2d 26 ae  |,L}.'.1.Mh.9J-&.|
+00000300  42 4a 6c 4e cc fb bf b7  0b 1a bf df 57 0c fe b1  |BJlN........W...|
+00000310  fd fc bd a2 08 a2 fc 4f  91 89 ec e0 ea e3 b3 38  |.......O.......8|
+00000320  2f ba 17 8e 07 0a 4d cd  a8 73 a4 e9 a3 02 ee 42  |/.....M..s.....B|
+00000330  07 14 03 03 00 01 01 16  03 03 00 40 75 26 df cd  |...........@u&..|
+00000340  34 27 db 19 2f da d4 0d  0a ec b4 d5 03 1a a1 34  |4'../..........4|
+00000350  fa fd df a9 31 1e e0 78  87 f6 9b 31 4a 27 4d 4e  |....1..x...1J'MN|
+00000360  54 d4 b0 a2 1a 72 52 02  89 47 93 a6 c4 57 d3 b8  |T....rR..G...W..|
+00000370  60 e5 1e db 60 ea fd 08  6f 13 fc 9d              |`...`...o...|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 0d f1 0c 52 89  |..............R.|
-00000020  61 e6 21 95 8d 6f 5d e9  07 42 23 5f 1c 74 44 57  |a.!..o]..B#_.tDW|
-00000030  38 a3 98 77 f2 62 99 71  d6 fe 03 a3 82 01 7a da  |8..w.b.q......z.|
-00000040  a5 fd 12 62 2b d2 1d e4  e2 51 25 17 03 03 00 40  |...b+....Q%....@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 b7 39 51 e9 91  |............9Q..|
+00000020  8a f0 d0 a9 6d fb 0e 30  bd 74 44 94 48 b0 6e a7  |....m..0.tD.H.n.|
+00000030  ab a8 8c ce 87 da 93 73  e1 da cc 53 e8 32 03 fe  |.......s...S.2..|
+00000040  57 66 cf e1 ed ef e6 6f  80 32 eb 17 03 03 00 40  |Wf.....o.2.....@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  81 82 cc a9 4e 6f 78 41  28 b3 e6 c3 44 62 48 0b  |....NoxA(...DbH.|
-00000070  b3 70 f9 f8 7a fc c5 be  36 45 58 41 6f 77 69 40  |.p..z...6EXAowi@|
-00000080  5b 6e fc 69 84 21 eb bc  95 36 e6 48 05 02 37 f5  |[n.i.!...6.H..7.|
+00000060  37 8f 8a d3 8e 0a f5 24  28 95 5e 19 e1 40 b8 2a  |7......$(.^..@.*|
+00000070  eb 4f 2a ec 6d 4d 7f f3  fb 63 52 46 52 57 c1 4a  |.O*.mM...cRFRW.J|
+00000080  ec cc a0 6b 2e 49 41 51  38 25 e3 af 82 53 2a 15  |...k.IAQ8%...S*.|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 d3 2f 45  d3 65 3b 64 67 43 ef aa  |....../E.e;dgC..|
-000000b0  a7 bb 98 a0 99 70 7f 56  c6 13 b2 1b 62 35 62 ea  |.....p.V....b5b.|
-000000c0  51 75 94 be 32                                    |Qu..2|
+000000a0  00 00 00 00 00 83 24 3c  9d 31 f3 41 a5 35 8c 01  |......$<.1.A.5..|
+000000b0  70 f4 b7 6e 2b 9e 1a 48  cf ce a4 68 2a 2c 53 18  |p..n+..H...h*,S.|
+000000c0  1e 26 24 50 92                                    |.&$P.|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndEd25519Given b/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndEd25519Given
index 0503b9d..d535cb4 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndEd25519Given
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndEd25519Given
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 cb 01 00 00  c7 03 03 ec bb 63 30 5c  |.............c0\|
-00000010  ea 49 54 dc 44 f7 80 47  c9 4d ff fa d4 77 44 8a  |.IT.D..G.M...wD.|
-00000020  ce 4b bd ce d7 95 b2 0d  f7 2e 88 00 00 38 c0 2c  |.K...........8.,|
+00000000  16 03 01 00 cb 01 00 00  c7 03 03 6e 46 fb 23 fe  |...........nF.#.|
+00000010  6d b0 f4 4f bf fb c6 93  f8 29 f8 93 0e 13 51 9e  |m..O.....)....Q.|
+00000020  d7 cc e8 bb d1 c1 69 06  66 4f 45 00 00 38 c0 2c  |......i.fOE..8.,|
 00000030  c0 30 00 9f cc a9 cc a8  cc aa c0 2b c0 2f 00 9e  |.0.........+./..|
 00000040  c0 24 c0 28 00 6b c0 23  c0 27 00 67 c0 0a c0 14  |.$.(.k.#.'.g....|
 00000050  00 39 c0 09 c0 13 00 33  00 9d 00 9c 00 3d 00 3c  |.9.....3.....=.<|
@@ -13,61 +13,62 @@
 000000b0  08 0b 08 04 08 05 08 06  04 01 05 01 06 01 03 03  |................|
 000000c0  02 03 03 01 02 01 03 02  02 02 04 02 05 02 06 02  |................|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 30 00 00  |...DOWNGRD...0..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  ac 0c 00 00 a8 03 00 1d  |;...............|
-000002a0  20 2f e5 7d a3 47 cd 62  43 15 28 da ac 5f bb 29  | /.}.G.bC.(.._.)|
-000002b0  07 30 ff f6 84 af c4 cf  c2 ed 90 99 5f 58 cb 3b  |.0.........._X.;|
-000002c0  74 04 01 00 80 94 e2 09  13 e0 7c e8 6d 3b 50 f1  |t.........|.m;P.|
-000002d0  4f f3 58 57 da 87 f4 61  f5 04 fc ec 0d 28 f1 e9  |O.XW...a.....(..|
-000002e0  be 93 20 4a 17 03 17 b1  7f 2c 32 24 2e 02 35 67  |.. J.....,2$..5g|
-000002f0  9f e7 55 0a 6d 3d af ef  e3 b2 27 2e ae 12 cd 2c  |..U.m=....'....,|
-00000300  d9 e1 60 d6 64 94 f5 f2  42 54 43 23 70 36 fe 8e  |..`.d...BTC#p6..|
-00000310  d2 0b a3 cf fd 04 74 6e  55 9b 7a 86 c8 dd 0d 40  |......tnU.z....@|
-00000320  bc b1 4e 05 c2 7f b4 40  3a d9 66 01 af ee fb 54  |..N....@:.f....T|
-00000330  b6 cc e4 5b a2 1a 39 dc  25 7d 5d 8c 37 a1 15 ae  |...[..9.%}].7...|
-00000340  ed 16 b5 25 14 16 03 03  00 1d 0d 00 00 19 02 01  |...%............|
-00000350  40 00 12 04 01 04 03 08  07 05 01 06 01 05 03 06  |@...............|
-00000360  03 02 01 02 03 00 00 16  03 03 00 04 0e 00 00 00  |................|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 ac 0c  |.`.\!.;.........|
+000002a0  00 00 a8 03 00 1d 20 2f  e5 7d a3 47 cd 62 43 15  |...... /.}.G.bC.|
+000002b0  28 da ac 5f bb 29 07 30  ff f6 84 af c4 cf c2 ed  |(.._.).0........|
+000002c0  90 99 5f 58 cb 3b 74 08  04 00 80 17 9f 15 d6 26  |.._X.;t........&|
+000002d0  36 78 d9 7f e6 48 27 56  a5 96 22 9f 9c f6 92 a0  |6x...H'V..".....|
+000002e0  dc 7d eb 66 6e b8 94 34  74 ac 96 50 63 f1 cd 92  |.}.fn..4t..Pc...|
+000002f0  bc 31 d2 f5 30 70 b2 d6  f3 09 0c 87 6a 8b f5 46  |.1..0p......j..F|
+00000300  0d 9a 87 4c de 94 80 49  43 26 28 e9 67 fa a8 1f  |...L...IC&(.g...|
+00000310  dd 36 5c b1 49 05 37 ac  2d db b8 22 bf ed 64 dc  |.6\.I.7.-.."..d.|
+00000320  50 53 12 3e e6 5a 78 fc  b2 c5 6f 4c a9 86 40 da  |PS.>.Zx...oL..@.|
+00000330  0a 9b 71 62 6d 12 c9 b7  9a 8b ca bd a5 77 37 0c  |..qbm........w7.|
+00000340  1c f1 66 2c 63 2d 7b c6  6b f1 48 16 03 03 00 23  |..f,c-{.k.H....#|
+00000350  0d 00 00 1f 02 01 40 00  18 08 04 04 03 08 07 08  |......@.........|
+00000360  05 08 06 04 01 05 01 06  01 05 03 06 03 02 01 02  |................|
+00000370  03 00 00 16 03 03 00 04  0e 00 00 00              |............|
 >>> Flow 3 (client to server)
 00000000  16 03 03 01 3c 0b 00 01  38 00 01 35 00 01 32 30  |....<...8..5..20|
 00000010  82 01 2e 30 81 e1 a0 03  02 01 02 02 10 17 d1 81  |...0............|
@@ -89,23 +90,23 @@
 00000110  8a 4e 34 40 39 d6 b3 10  dc 19 fe a0 22 71 b3 f5  |.N4@9......."q..|
 00000120  8f a1 58 0d cd f4 f1 85  24 bf e6 3d 14 df df ed  |..X.....$..=....|
 00000130  0e e1 17 d8 11 a2 60 d0  8a 37 23 2a c2 46 aa 3a  |......`..7#*.F.:|
-00000140  08 16 03 03 00 25 10 00  00 21 20 f1 58 f8 db 86  |.....%...! .X...|
-00000150  a5 97 07 c8 fc c8 c1 fe  e4 c9 35 13 44 f8 9b 7f  |..........5.D...|
-00000160  4a 22 6a 61 75 70 be 23  76 f4 5f 16 03 03 00 48  |J"jaup.#v._....H|
-00000170  0f 00 00 44 08 07 00 40  fb ab 8f 44 f1 7b cb 95  |...D...@...D.{..|
-00000180  e3 83 4b 85 d0 4f 41 a6  39 f8 ba c1 7c b5 7d f0  |..K..OA.9...|.}.|
-00000190  45 5b 2d e2 90 80 27 1a  b9 88 dd 4b 0d bc e8 1b  |E[-...'....K....|
-000001a0  d4 fc 69 d1 ac 59 d8 b3  0b b6 f7 ae 76 12 da 80  |..i..Y......v...|
-000001b0  6b 39 98 5b 55 c4 c1 09  14 03 03 00 01 01 16 03  |k9.[U...........|
-000001c0  03 00 28 46 3a 98 32 bf  61 b0 d2 74 f8 f4 65 ef  |..(F:.2.a..t..e.|
-000001d0  89 5b f5 ef 49 42 56 67  97 23 f2 18 de 06 30 86  |.[..IBVg.#....0.|
-000001e0  77 66 ac 0a ac 88 98 ab  93 2b 20                 |wf.......+ |
+00000140  08 16 03 03 00 25 10 00  00 21 20 87 e9 7b d5 6c  |.....%...! ..{.l|
+00000150  ed 43 f2 56 e4 00 5c 30  8b ec 63 cb ef da 90 aa  |.C.V..\0..c.....|
+00000160  e2 eb 0e ad 23 db 90 c5  02 47 7c 16 03 03 00 48  |....#....G|....H|
+00000170  0f 00 00 44 08 07 00 40  71 03 0f a9 ed a8 cf 3c  |...D...@q......<|
+00000180  73 e6 ae 21 92 93 68 10  bc e0 fd 07 d8 58 30 7c  |s..!..h......X0||
+00000190  8d f2 1d ee e6 20 4c a4  6a 4b b8 66 6c 51 b5 1a  |..... L.jK.flQ..|
+000001a0  06 f1 5d 13 83 43 60 6f  b1 f7 56 97 b2 ef c6 b8  |..]..C`o..V.....|
+000001b0  97 0b 9a fe 46 3e 9a 00  14 03 03 00 01 01 16 03  |....F>..........|
+000001c0  03 00 28 de 17 73 c1 91  60 06 3d 0c 9c d0 5a c9  |..(..s..`.=...Z.|
+000001d0  f2 2b f4 80 8b e8 01 dc  84 ff a1 16 08 1e af 76  |.+.............v|
+000001e0  f2 fc 34 52 3f 87 60 9e  06 ff c2                 |..4R?.`....|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 28 00 00 00 00 00  |..........(.....|
-00000010  00 00 00 49 81 2d e8 88  dc 52 2a 44 51 18 2e 62  |...I.-...R*DQ..b|
-00000020  28 9e 91 7a 87 b5 fb 46  89 27 01 5e dc b1 12 00  |(..z...F.'.^....|
-00000030  72 fe 34 17 03 03 00 25  00 00 00 00 00 00 00 01  |r.4....%........|
-00000040  ab a1 6a 44 4b 80 a8 2e  f4 75 ff 09 9f 11 05 74  |..jDK....u.....t|
-00000050  93 ab 97 de 54 16 36 f9  0a 3c a1 89 c0 15 03 03  |....T.6..<......|
-00000060  00 1a 00 00 00 00 00 00  00 02 2d 63 e8 72 ab 7b  |..........-c.r.{|
-00000070  20 de f4 73 05 4a 26 a1  78 7a 1c 02              | ..s.J&.xz..|
+00000010  00 00 00 db 9b a0 e5 96  0d ca 2b ce 8a 3c 9e bc  |..........+..<..|
+00000020  43 1a ad 0d fb a1 7e 0d  39 7d 3f b4 79 bd ee 7a  |C.....~.9}?.y..z|
+00000030  e4 a1 6e 17 03 03 00 25  00 00 00 00 00 00 00 01  |..n....%........|
+00000040  05 bd 7f 40 dd 89 b2 fd  3c ef a6 72 a0 dd 9f be  |...@....<..r....|
+00000050  ee 27 ca a6 e0 f1 c8 3c  69 3c 35 02 48 15 03 03  |.'.....<i<5.H...|
+00000060  00 1a 00 00 00 00 00 00  00 02 42 e8 f0 d5 87 4f  |..........B....O|
+00000070  d7 a4 90 bc ba b9 b6 be  73 fd 03 92              |........s...|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndGiven b/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndGiven
index aa27d2c..e0e8f7c 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndGiven
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndGiven
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 97 01 00 00  93 03 03 de e6 7c 24 10  |.............|$.|
-00000010  d1 3a 48 8f ba 9a cf 0f  4b 8d 81 8b 07 41 4f bd  |.:H.....K....AO.|
-00000020  46 9b c1 dc 24 51 aa 30  83 a2 49 00 00 04 00 2f  |F...$Q.0..I..../|
+00000000  16 03 01 00 97 01 00 00  93 03 03 b1 ad 52 31 a1  |.............R1.|
+00000010  0a ff 18 7f 32 d2 83 f2  e2 9d 54 03 6f fc 58 66  |....2.....T.o.Xf|
+00000020  29 e8 3e bc c3 4d d9 75  6e 06 53 00 00 04 00 2f  |).>..M.un.S..../|
 00000030  00 ff 01 00 00 66 00 00  00 0e 00 0c 00 00 09 31  |.....f.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,77 +10,118 @@
 00000080  08 05 08 06 04 01 05 01  06 01 03 03 02 03 03 01  |................|
 00000090  02 01 03 02 02 02 04 02  05 02 06 02              |............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  1d 0d 00 00 19 02 01 40  |;..............@|
-000002a0  00 12 04 01 04 03 08 07  05 01 06 01 05 03 06 03  |................|
-000002b0  02 01 02 03 00 00 16 03  03 00 04 0e 00 00 00     |...............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 23 0d  |.`.\!.;.......#.|
+000002a0  00 00 1f 02 01 40 00 18  08 04 04 03 08 07 08 05  |.....@..........|
+000002b0  08 06 04 01 05 01 06 01  05 03 06 03 02 01 02 03  |................|
+000002c0  00 00 16 03 03 00 04 0e  00 00 00                 |...........|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 07 0b 00 00  03 00 00 00 16 03 03 00  |................|
-00000010  86 10 00 00 82 00 80 2e  43 3b 39 9a be ef de 53  |........C;9....S|
-00000020  4a 94 a3 a3 bd 92 93 44  e7 27 be f9 97 c9 1b fd  |J......D.'......|
-00000030  22 1b 6a 6c c3 79 87 45  01 a8 e0 ee 34 5a 23 61  |".jl.y.E....4Z#a|
-00000040  25 e4 06 88 fd b5 0d a3  dc e4 64 02 14 7e 47 fb  |%.........d..~G.|
-00000050  3b 88 7d 7f a9 e2 63 64  1a 15 db c6 de 03 a0 ed  |;.}...cd........|
-00000060  3c 33 b6 2f cc 2a fe 44  8f d7 be 61 0f e5 ea 2f  |<3./.*.D...a.../|
-00000070  63 7f c1 fa bc de d3 fd  10 3e 89 48 2c cf ab 57  |c........>.H,..W|
-00000080  ee b4 04 11 8c 2e 2d ec  b9 e5 d0 ac e7 b7 4d 60  |......-.......M`|
-00000090  fd fe 7f 88 f1 35 9b 14  03 03 00 01 01 16 03 03  |.....5..........|
-000000a0  00 40 ae 7d 3a a0 36 5b  4c b2 fe d7 3d 8b e8 45  |.@.}:.6[L...=..E|
-000000b0  f3 43 ae c4 d0 62 74 b5  44 38 3e f0 fd 68 f2 0b  |.C...bt.D8>..h..|
-000000c0  4a e6 b9 e8 59 4d 84 6a  cd a3 83 5a 95 8f 7a a8  |J...YM.j...Z..z.|
-000000d0  32 db b7 cd ef e8 5a dc  25 e5 1b 5f 02 7b e7 02  |2.....Z.%.._.{..|
-000000e0  fd d1                                             |..|
+00000000  16 03 03 01 fd 0b 00 01  f9 00 01 f6 00 01 f3 30  |...............0|
+00000010  82 01 ef 30 82 01 58 a0  03 02 01 02 02 10 5c 19  |...0..X.......\.|
+00000020  c1 89 65 83 55 6f dc 0b  c9 b9 93 9f e9 bc 30 0d  |..e.Uo........0.|
+00000030  06 09 2a 86 48 86 f7 0d  01 01 0b 05 00 30 12 31  |..*.H........0.1|
+00000040  10 30 0e 06 03 55 04 0a  13 07 41 63 6d 65 20 43  |.0...U....Acme C|
+00000050  6f 30 1e 17 0d 31 36 30  38 31 37 32 31 35 32 33  |o0...16081721523|
+00000060  31 5a 17 0d 31 37 30 38  31 37 32 31 35 32 33 31  |1Z..170817215231|
+00000070  5a 30 12 31 10 30 0e 06  03 55 04 0a 13 07 41 63  |Z0.1.0...U....Ac|
+00000080  6d 65 20 43 6f 30 81 9f  30 0d 06 09 2a 86 48 86  |me Co0..0...*.H.|
+00000090  f7 0d 01 01 01 05 00 03  81 8d 00 30 81 89 02 81  |...........0....|
+000000a0  81 00 ba 6f aa 86 bd cf  bf 9f f2 ef 5c 94 60 78  |...o........\.`x|
+000000b0  6f e8 13 f2 d1 96 6f cd  d9 32 6e 22 37 ce 41 f9  |o.....o..2n"7.A.|
+000000c0  ca 5d 29 ac e1 27 da 61  a2 ee 81 cb 10 c7 df 34  |.])..'.a.......4|
+000000d0  58 95 86 e9 3d 19 e6 5c  27 73 60 c8 8d 78 02 f4  |X...=..\'s`..x..|
+000000e0  1d a4 98 09 a3 19 70 69  3c 25 62 66 2a ab 22 23  |......pi<%bf*."#|
+000000f0  c5 7b 85 38 4f 2e 09 73  32 a7 bd 3e 9b ad ca 84  |.{.8O..s2..>....|
+00000100  07 e6 0f 3a ff 77 c5 9d  41 85 00 8a b6 9b ee b0  |...:.w..A.......|
+00000110  a4 3f 2d 4c 4c e6 42 3e  bb 51 c8 dd 48 54 f4 0c  |.?-LL.B>.Q..HT..|
+00000120  8e 47 02 03 01 00 01 a3  46 30 44 30 0e 06 03 55  |.G......F0D0...U|
+00000130  1d 0f 01 01 ff 04 04 03  02 05 a0 30 13 06 03 55  |...........0...U|
+00000140  1d 25 04 0c 30 0a 06 08  2b 06 01 05 05 07 03 01  |.%..0...+.......|
+00000150  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 0f  |0...U.......0.0.|
+00000160  06 03 55 1d 11 04 08 30  06 87 04 7f 00 00 01 30  |..U....0.......0|
+00000170  0d 06 09 2a 86 48 86 f7  0d 01 01 0b 05 00 03 81  |...*.H..........|
+00000180  81 00 46 ab 44 a2 fb 28  54 f8 5a 67 f8 62 94 f1  |..F.D..(T.Zg.b..|
+00000190  9a b2 18 9e f2 b1 de 1d  7e 6f 76 95 a9 ba e7 5d  |........~ov....]|
+000001a0  a8 16 6c 9c f7 09 d3 37  e4 4b 2b 36 7c 01 ad 41  |..l....7.K+6|..A|
+000001b0  d2 32 d8 c3 d2 93 f9 10  6b 8e 95 b9 2c 17 8a a3  |.2......k...,...|
+000001c0  44 48 bc 59 13 83 16 04  88 a4 81 5c 25 0d 98 0c  |DH.Y.......\%...|
+000001d0  ac 11 b1 28 56 be 1d cd  61 62 84 09 bf d6 80 c6  |...(V...ab......|
+000001e0  45 8d 82 2c b4 d8 83 9b  db c9 22 b7 2a 12 11 7b  |E..,......".*..{|
+000001f0  fa 02 3b c1 c9 ff ea c9  9d a8 49 d3 95 d7 d5 0e  |..;.......I.....|
+00000200  e5 35 16 03 03 00 86 10  00 00 82 00 80 48 d4 42  |.5...........H.B|
+00000210  f3 7f 89 ce 32 5a 89 32  c4 4e 6a 66 f7 0d 3d 63  |....2Z.2.Njf..=c|
+00000220  e9 69 74 b5 f4 5e cb 99  74 6c c5 85 39 a3 24 ab  |.it..^..tl..9.$.|
+00000230  a0 0c 16 1b 9b 0f b5 57  8f 97 30 de ae 44 fd da  |.......W..0..D..|
+00000240  9f 0d 09 47 d7 a1 f7 aa  88 1d a5 e2 6d de 5b 92  |...G........m.[.|
+00000250  25 8e 84 7e fd 21 fe 00  c2 c7 d8 4c df 0c 40 07  |%..~.!.....L..@.|
+00000260  7a e6 61 45 37 6d 36 fd  e8 44 8e 9c c7 04 31 46  |z.aE7m6..D....1F|
+00000270  6b 24 51 37 e0 09 84 ba  56 39 5e df 99 9f 6e 8a  |k$Q7....V9^...n.|
+00000280  35 b2 27 a1 29 83 fb f7  c9 06 88 c5 6a 16 03 03  |5.'.).......j...|
+00000290  00 88 0f 00 00 84 08 04  00 80 01 b3 d6 d0 58 c4  |..............X.|
+000002a0  bc 36 b2 c5 6e a2 90 77  52 33 19 a1 9c 2f a4 ed  |.6..n..wR3.../..|
+000002b0  76 b7 7b 67 ce 36 e2 37  b3 23 68 78 c0 2f 80 d4  |v.{g.6.7.#hx./..|
+000002c0  58 0e fc 11 dc 85 b6 9c  25 7f 02 48 b9 a3 24 8c  |X.......%..H..$.|
+000002d0  26 94 8c 6d 8d 87 6c 9b  20 97 b2 49 ea b6 4c 16  |&..m..l. ..I..L.|
+000002e0  03 96 0a 93 e7 15 e4 cb  5a 43 5c 11 77 0e a9 cb  |........ZC\.w...|
+000002f0  5e c6 4a d3 84 9a 27 e7  81 84 56 ad fa 4b b3 fe  |^.J...'...V..K..|
+00000300  03 d9 91 1a cf 6e 5b 5e  f9 b0 fb 59 27 29 e2 09  |.....n[^...Y')..|
+00000310  db 63 69 05 28 7c 95 45  7b da 14 03 03 00 01 01  |.ci.(|.E{.......|
+00000320  16 03 03 00 40 20 4f 52  fa e4 4b 92 8e 3f 52 18  |....@ OR..K..?R.|
+00000330  42 ba 07 93 fe 1d 11 ee  d9 2f 37 55 88 cd 03 18  |B......../7U....|
+00000340  e7 44 95 b4 c2 69 91 38  f1 39 ba 14 f6 59 98 22  |.D...i.8.9...Y."|
+00000350  64 a1 a0 a3 b9 2e ec cb  14 dc 85 60 b4 95 3a 5a  |d..........`..:Z|
+00000360  77 a7 65 eb 02                                    |w.e..|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 18 1c 14 83 35  |...............5|
-00000020  c3 40 2a 62 72 5d 6f 23  98 1e 1c cf 3c 1f 76 f0  |.@*br]o#....<.v.|
-00000030  49 cb 62 80 32 e6 d8 6d  95 9b 58 47 2d 65 ff 25  |I.b.2..m..XG-e.%|
-00000040  00 99 db 92 58 e0 e9 09  90 c3 72 17 03 03 00 40  |....X.....r....@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 56 f9 31 18 46  |...........V.1.F|
+00000020  ce f2 b8 78 c8 34 ec b4  33 d4 ee 42 9f cc a1 40  |...x.4..3..B...@|
+00000030  45 fc 81 bd 33 86 93 6e  0d 59 01 15 2e 71 ae 8d  |E...3..n.Y...q..|
+00000040  18 1a 10 6d 86 d5 17 7d  80 3f a3 17 03 03 00 40  |...m...}.?.....@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  b5 9c b1 d1 30 6e 93 66  69 07 47 f6 31 ad e9 e1  |....0n.fi.G.1...|
-00000070  c5 d4 5c 98 ac 00 41 cd  84 c3 56 61 b1 36 fd ad  |..\...A...Va.6..|
-00000080  7f c6 b1 27 1d ef b9 ba  43 a1 7e f4 71 d9 55 6e  |...'....C.~.q.Un|
+00000060  c1 b4 84 5e 61 48 33 a2  91 ae 7c d9 ee 9a fc 78  |...^aH3...|....x|
+00000070  57 c9 7d 1f fa c8 16 dc  6b c1 ec ff 1b 3f 4d d2  |W.}.....k....?M.|
+00000080  69 57 aa e2 95 13 c5 92  81 14 63 bd ba 29 b9 3f  |iW........c..).?|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 3f 1a f4  80 31 9b 60 c0 28 76 79  |.....?...1.`.(vy|
-000000b0  c1 8f 65 f6 d3 b6 6d 99  6d 11 fa bc a6 b8 bf 7f  |..e...m.m.......|
-000000c0  8b ca c5 a1 cd                                    |.....|
+000000a0  00 00 00 00 00 b8 22 70  50 65 d6 ae 00 6b f7 e1  |......"pPe...k..|
+000000b0  76 1d 03 d7 f7 80 56 74  73 af f2 6c 70 6f cb 4a  |v.....Vts..lpo.J|
+000000c0  b3 2a 18 1b b5                                    |.*...|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndPKCS1v15Given b/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndPKCS1v15Given
index 1bb602d..b38cb41 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndPKCS1v15Given
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedAndPKCS1v15Given
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 97 01 00 00  93 03 03 b1 59 5d 29 7f  |............Y]).|
-00000010  90 9c ef 9d ae 0a 91 6c  ab 05 fb 58 f7 79 9b c4  |.......l...X.y..|
-00000020  22 e1 ab 55 5c ea d1 24  27 2a 63 00 00 04 00 2f  |"..U\..$'*c..../|
+00000000  16 03 01 00 97 01 00 00  93 03 03 a1 ef 12 cf c0  |................|
+00000010  c2 32 71 56 71 e0 e9 24  ae 63 20 58 0f c0 39 b3  |.2qVq..$.c X..9.|
+00000020  74 89 9d 9c 00 96 e5 78  9c 0a 84 00 00 04 00 2f  |t......x......./|
 00000030  00 ff 01 00 00 66 00 00  00 0e 00 0c 00 00 09 31  |.....f.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,50 +10,51 @@
 00000080  08 05 08 06 04 01 05 01  06 01 03 03 02 03 03 01  |................|
 00000090  02 01 03 02 02 02 04 02  05 02 06 02              |............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  1d 0d 00 00 19 02 01 40  |;..............@|
-000002a0  00 12 04 01 04 03 08 07  05 01 06 01 05 03 06 03  |................|
-000002b0  02 01 02 03 00 00 16 03  03 00 04 0e 00 00 00     |...............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 23 0d  |.`.\!.;.......#.|
+000002a0  00 00 1f 02 01 40 00 18  08 04 04 03 08 07 08 05  |.....@..........|
+000002b0  08 06 04 01 05 01 06 01  05 03 06 03 02 01 02 03  |................|
+000002c0  00 00 16 03 03 00 04 0e  00 00 00                 |...........|
 >>> Flow 3 (client to server)
 00000000  16 03 03 01 fd 0b 00 01  f9 00 01 f6 00 01 f3 30  |...............0|
 00000010  82 01 ef 30 82 01 58 a0  03 02 01 02 02 10 5c 19  |...0..X.......\.|
@@ -87,40 +88,40 @@
 000001d0  ac 11 b1 28 56 be 1d cd  61 62 84 09 bf d6 80 c6  |...(V...ab......|
 000001e0  45 8d 82 2c b4 d8 83 9b  db c9 22 b7 2a 12 11 7b  |E..,......".*..{|
 000001f0  fa 02 3b c1 c9 ff ea c9  9d a8 49 d3 95 d7 d5 0e  |..;.......I.....|
-00000200  e5 35 16 03 03 00 86 10  00 00 82 00 80 aa ad 37  |.5.............7|
-00000210  05 40 cc 04 19 d0 de aa  25 9f 20 4e ce 74 f5 70  |.@......%. N.t.p|
-00000220  ae 17 f0 29 a4 37 ac 84  67 06 da 17 9f 26 dc ab  |...).7..g....&..|
-00000230  96 c4 13 d6 a5 e5 93 57  70 17 f2 f1 fb 0e a2 e4  |.......Wp.......|
-00000240  85 82 ea 63 ab 6f 6e 1f  0b 12 e7 35 ce b0 79 da  |...c.on....5..y.|
-00000250  95 cf de 7d 8b be 5e cc  d5 8e 00 02 fe 67 61 b4  |...}..^......ga.|
-00000260  69 2c 09 90 ae 6c df 29  45 67 79 8e fe 91 fb 3e  |i,...l.)Egy....>|
-00000270  1e ec 95 11 6c 6a 15 2f  93 59 41 34 8a 35 b0 7c  |....lj./.YA4.5.||
-00000280  22 ee bb 99 cc 3d 05 1f  7b 1b 96 f6 bc 16 03 03  |"....=..{.......|
-00000290  00 88 0f 00 00 84 04 01  00 80 a5 b1 55 c7 8c 86  |............U...|
-000002a0  c1 c2 60 2d ad 40 f1 ca  56 25 39 e7 c1 83 7f 16  |..`-.@..V%9.....|
-000002b0  08 6a c9 23 6a 82 73 63  bf 1a 32 de 85 82 2a bc  |.j.#j.sc..2...*.|
-000002c0  a0 99 db ea 34 26 27 8f  c6 36 b7 53 b5 76 75 2e  |....4&'..6.S.vu.|
-000002d0  48 26 bb b0 65 55 68 57  12 cb 9c 93 96 fc 88 fc  |H&..eUhW........|
-000002e0  73 56 c1 1e 04 ae 41 aa  ad b7 f8 58 7a 55 a9 74  |sV....A....XzU.t|
-000002f0  5b b5 12 08 25 ef c1 0f  4c 39 7b c5 07 d9 34 66  |[...%...L9{...4f|
-00000300  15 d3 76 a2 65 8c 4c ce  9a 89 0f 1f a9 5f d0 93  |..v.e.L......_..|
-00000310  3e ed 92 be 42 4c fe 23  ea 40 14 03 03 00 01 01  |>...BL.#.@......|
-00000320  16 03 03 00 40 89 ff 92  80 9b 37 4b 6f 8f 3a 22  |....@.....7Ko.:"|
-00000330  aa ab 60 1f 4d 49 ba 75  b2 dc 83 06 22 5a 89 5d  |..`.MI.u...."Z.]|
-00000340  1f 95 fa 0c 18 80 a0 5a  96 09 93 7b 06 cb 6c aa  |.......Z...{..l.|
-00000350  74 79 ea ae 02 e7 a7 c9  44 0b 6d f7 f7 b2 04 8f  |ty......D.m.....|
-00000360  6e 46 2d f1 6b                                    |nF-.k|
+00000200  e5 35 16 03 03 00 86 10  00 00 82 00 80 64 8b 67  |.5...........d.g|
+00000210  fe b0 0e a0 a6 2b 95 2b  35 24 91 d0 29 6e 0a 3b  |.....+.+5$..)n.;|
+00000220  bc 32 5f 28 30 a9 6e f3  b8 4a 1d 7c 11 7c c5 03  |.2_(0.n..J.|.|..|
+00000230  70 51 99 8f f5 2e 91 78  b9 65 23 3c 3a 7f a7 63  |pQ.....x.e#<:..c|
+00000240  1f ad 30 3c 91 b1 d8 79  76 b4 94 a7 76 26 20 c7  |..0<...yv...v& .|
+00000250  f1 93 17 13 8a 25 6e 9e  84 9e e5 21 b8 87 46 8d  |.....%n....!..F.|
+00000260  46 37 7f ef 25 e2 8f 6e  52 58 cc a9 5c 40 ee 5e  |F7..%..nRX..\@.^|
+00000270  f8 25 04 e9 e1 1e 33 31  ea 9e bd 79 e8 d8 f8 0b  |.%....31...y....|
+00000280  a5 5d 63 79 1f 83 bc df  14 c9 92 a6 82 16 03 03  |.]cy............|
+00000290  00 88 0f 00 00 84 04 01  00 80 06 8a 73 2b 2d 45  |............s+-E|
+000002a0  09 3c cf 66 d9 ef d0 44  d0 89 07 03 67 56 b5 c9  |.<.f...D....gV..|
+000002b0  de 89 49 32 6e 44 b0 01  db 10 8b 1a 68 5c 2e 0b  |..I2nD......h\..|
+000002c0  38 e7 75 60 0b 68 96 2e  3b ba bd a8 ce 1e ee 3d  |8.u`.h..;......=|
+000002d0  e6 a4 c4 3a 5c d0 14 3b  64 52 56 ef 5b 74 45 3c  |...:\..;dRV.[tE<|
+000002e0  2b eb f6 0b 6c 15 37 5c  c3 d3 6d 4c 32 ea 3d 40  |+...l.7\..mL2.=@|
+000002f0  7b 60 35 16 44 a4 3c 4a  2e 85 d9 a2 a5 a6 79 11  |{`5.D.<J......y.|
+00000300  f1 78 9a 95 40 c8 df 0b  df 90 52 1e 64 f2 18 90  |.x..@.....R.d...|
+00000310  b0 b4 d5 65 4b 20 7d 78  8b 30 14 03 03 00 01 01  |...eK }x.0......|
+00000320  16 03 03 00 40 12 47 b2  df 72 33 bc 87 3a dc 45  |....@.G..r3..:.E|
+00000330  38 27 6d d1 05 82 34 99  82 ca 5b 4d 27 d1 c6 d9  |8'm...4...[M'...|
+00000340  7c e5 a1 ff fa aa d2 e4  2d 1a b9 b7 c4 b4 86 a6  ||.......-.......|
+00000350  04 5e 6f 09 b0 98 c8 79  95 96 44 aa 1f a3 f3 c5  |.^o....y..D.....|
+00000360  c5 78 2f 7f 68                                    |.x/.h|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 67 84 0f 78 e0  |...........g..x.|
-00000020  91 c8 d4 4b 1c 69 95 f8  6c 30 23 55 2b 04 4b 24  |...K.i..l0#U+.K$|
-00000030  58 0a 46 06 94 00 72 95  77 77 4c d7 82 87 69 0a  |X.F...r.wwL...i.|
-00000040  4c 78 8a 12 76 27 ae 65  c9 20 c4 17 03 03 00 40  |Lx..v'.e. .....@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 1a 60 c5 8b a5  |............`...|
+00000020  6d be c2 a0 c7 23 e6 f8  e8 fb e7 31 7c 7f 37 67  |m....#.....1|.7g|
+00000030  7c 1e 39 2b ea cd 26 47  5c 7f 19 ad 78 be 11 3d  ||.9+..&G\...x..=|
+00000040  98 f5 c8 97 22 1d 23 45  55 2b 25 17 03 03 00 40  |....".#EU+%....@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  13 3b e0 4b cd 52 d3 6c  90 91 37 38 1d 9c 75 a2  |.;.K.R.l..78..u.|
-00000070  02 a3 3f 1a 43 6c aa f4  17 da 4e 01 d7 8c 74 5e  |..?.Cl....N...t^|
-00000080  f4 d3 61 cf 3c 7f 55 73  17 e7 d1 c3 a0 da 24 c4  |..a.<.Us......$.|
+00000060  e0 a5 72 92 b6 6c ee e8  2d 7f cf d9 df 2d 4f 70  |..r..l..-....-Op|
+00000070  18 8a c3 9c 10 89 0f 11  df 83 d7 4c 35 ea 4e 19  |...........L5.N.|
+00000080  7f ab 8b f0 0e de 32 6e  86 d1 e9 78 90 f6 3b e7  |......2n...x..;.|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 28 75 97  89 88 21 2e fe 9b 81 87  |.....(u...!.....|
-000000b0  2a 37 f0 81 9f 76 a2 27  a4 78 69 30 87 2c 09 6e  |*7...v.'.xi0.,.n|
-000000c0  55 90 fb ab b6                                    |U....|
+000000a0  00 00 00 00 00 db 5e ed  de c0 26 10 13 a8 18 46  |......^...&....F|
+000000b0  70 3e a4 bd b7 df a1 bd  86 06 c6 97 ae cb ca f6  |p>..............|
+000000c0  8d 0f 85 82 f7                                    |.....|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedNotGiven b/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedNotGiven
index 5711a3f..6f7c288 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedNotGiven
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-ClientAuthRequestedNotGiven
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 97 01 00 00  93 03 03 67 52 bd 6c 6c  |...........gR.ll|
-00000010  76 8e 81 75 11 23 27 99  07 bf 64 96 13 0b 85 78  |v..u.#'...d....x|
-00000020  b4 5b b9 b0 a8 b5 fc 87  ef f2 0e 00 00 04 00 2f  |.[............./|
+00000000  16 03 01 00 97 01 00 00  93 03 03 07 72 d5 84 85  |............r...|
+00000010  48 68 f6 83 2f 1d 22 96  61 9d 27 60 b9 70 d2 5f  |Hh../.".a.'`.p._|
+00000020  5e 9e 41 cb 82 9b 61 c6  ae af a7 00 00 04 00 2f  |^.A...a......../|
 00000030  00 ff 01 00 00 66 00 00  00 0e 00 0c 00 00 09 31  |.....f.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,77 +10,78 @@
 00000080  08 05 08 06 04 01 05 01  06 01 03 03 02 03 03 01  |................|
 00000090  02 01 03 02 02 02 04 02  05 02 06 02              |............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  1d 0d 00 00 19 02 01 40  |;..............@|
-000002a0  00 12 04 01 04 03 08 07  05 01 06 01 05 03 06 03  |................|
-000002b0  02 01 02 03 00 00 16 03  03 00 04 0e 00 00 00     |...............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 23 0d  |.`.\!.;.......#.|
+000002a0  00 00 1f 02 01 40 00 18  08 04 04 03 08 07 08 05  |.....@..........|
+000002b0  08 06 04 01 05 01 06 01  05 03 06 03 02 01 02 03  |................|
+000002c0  00 00 16 03 03 00 04 0e  00 00 00                 |...........|
 >>> Flow 3 (client to server)
 00000000  16 03 03 00 07 0b 00 00  03 00 00 00 16 03 03 00  |................|
-00000010  86 10 00 00 82 00 80 31  7f 5d 8c 38 ee d7 05 14  |.......1.].8....|
-00000020  4c 0f 9d 01 2d 80 e9 71  0a 51 69 7b af 75 43 76  |L...-..q.Qi{.uCv|
-00000030  d7 eb 18 14 11 00 82 df  f4 e8 d1 83 5e 32 60 6e  |............^2`n|
-00000040  49 6d 1a 3f b2 ac 85 9f  f3 3c 3c cd f2 0d a8 e0  |Im.?.....<<.....|
-00000050  06 f3 6f 96 18 a0 76 06  c3 73 89 b4 de 30 ed 7b  |..o...v..s...0.{|
-00000060  7e 71 2d 13 88 43 ff a7  42 bb 2c 17 73 5f 67 8f  |~q-..C..B.,.s_g.|
-00000070  68 e7 52 84 72 34 08 69  c6 f5 1b e9 2b 42 93 90  |h.R.r4.i....+B..|
-00000080  3f 76 f3 89 9f 70 65 da  9c ce 8c bf a3 38 65 e3  |?v...pe......8e.|
-00000090  cf b9 f9 c6 d9 86 a5 14  03 03 00 01 01 16 03 03  |................|
-000000a0  00 40 e7 dd bf f7 33 bc  f2 90 a3 43 fa 43 ec 7e  |.@....3....C.C.~|
-000000b0  e6 06 28 c1 3f 83 c5 50  65 6d 6b e7 37 cf e7 4b  |..(.?..Pemk.7..K|
-000000c0  85 34 3b df 4f 48 82 30  d0 43 f7 00 c4 3f 03 dd  |.4;.OH.0.C...?..|
-000000d0  ef c0 d4 04 48 b4 9b ec  f0 65 7c 2a bc 87 24 5f  |....H....e|*..$_|
-000000e0  7a d5                                             |z.|
+00000010  86 10 00 00 82 00 80 60  6d 7c a2 1e 90 d3 14 55  |.......`m|.....U|
+00000020  2b 65 e6 14 10 59 51 ba  f0 55 89 1d f6 d2 6e 85  |+e...YQ..U....n.|
+00000030  58 16 fc 45 a2 88 ae 24  b6 77 c0 f4 9e 6f de 76  |X..E...$.w...o.v|
+00000040  d4 9c 06 a3 6c 4f 54 da  e5 41 e4 f8 fd 2d ca c6  |....lOT..A...-..|
+00000050  c4 7f 5a d4 c5 7b 3e 04  30 3e 64 b1 f5 c2 24 8f  |..Z..{>.0>d...$.|
+00000060  49 98 2c f7 29 89 06 7e  5e 8f 9e 8e 6c fc 4c 08  |I.,.)..~^...l.L.|
+00000070  3e 05 f9 90 86 d9 38 b8  04 ff 7e a1 c2 a5 38 66  |>.....8...~...8f|
+00000080  41 63 7a 8e d2 7b 27 22  0e a1 0c 17 1e d7 9f 29  |Acz..{'".......)|
+00000090  5c fa fe 2d 11 b3 4a 14  03 03 00 01 01 16 03 03  |\..-..J.........|
+000000a0  00 40 e3 e5 62 d6 c9 93  bd 91 a4 60 2e 2d 9d 0b  |.@..b......`.-..|
+000000b0  ce 75 2a e9 19 ed 36 03  ff 97 ee b7 b9 61 04 1b  |.u*...6......a..|
+000000c0  a9 a3 4c 8a a0 c9 40 c4  92 55 bb ed 17 1f 38 c4  |..L...@..U....8.|
+000000d0  45 46 1f d6 53 b7 3b 6b  09 b6 d7 f1 a4 0e 25 21  |EF..S.;k......%!|
+000000e0  10 21                                             |.!|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 da 0a 2a 09 ef  |.............*..|
-00000020  39 6c c9 6d cc c3 ae 56  cd e1 a8 47 26 ec 9c b7  |9l.m...V...G&...|
-00000030  50 eb 2e 10 d4 15 3e 5e  cc 65 78 2e 47 bf 18 e8  |P.....>^.ex.G...|
-00000040  62 59 bb 7c b7 2c 28 b1  ea 82 10 17 03 03 00 40  |bY.|.,(........@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 17 ce 12 8e 1a  |................|
+00000020  1f c2 d2 9c c9 28 c0 89  cb fa 8c 48 28 a2 d2 93  |.....(.....H(...|
+00000030  a6 aa 43 35 5f 29 ab e2  c6 f9 70 f6 8f d9 da af  |..C5_)....p.....|
+00000040  da 2a 02 24 9c 74 57 3d  a2 0f 6d 17 03 03 00 40  |.*.$.tW=..m....@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  9e 53 10 86 89 0c 8f 14  0c 22 6c 32 33 34 64 83  |.S......."l234d.|
-00000070  28 7c 02 b3 59 b7 b2 60  5a ec f2 a7 1a 21 04 dd  |(|..Y..`Z....!..|
-00000080  2a c0 ca 68 07 85 8f 7d  6b da 26 97 52 91 40 e8  |*..h...}k.&.R.@.|
+00000060  58 99 9f 9b 65 fd 53 7e  4a 82 47 99 d7 16 b7 4f  |X...e.S~J.G....O|
+00000070  84 7d 49 c0 af 42 84 54  e1 31 dc 01 00 de 8c 08  |.}I..B.T.1......|
+00000080  a3 ee 9b 32 b4 f0 30 d1  ae 8e f5 5d 11 ad eb fb  |...2..0....]....|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 f4 ae 69  5a bc af 94 f9 7f 60 d1  |.......iZ.....`.|
-000000b0  36 83 e7 23 13 79 ae c1  5a 3b 35 d0 ed 16 12 ac  |6..#.y..Z;5.....|
-000000c0  52 b5 4e eb 31                                    |R.N.1|
+000000a0  00 00 00 00 00 94 b8 23  55 00 7e 3a ba 67 86 03  |.......#U.~:.g..|
+000000b0  e6 19 11 4a 7d 58 69 6f  79 bb be 6d ba a7 9f a2  |...J}Xioy..m....|
+000000c0  1a 30 b7 83 2e                                    |.0...|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-ECDHE-ECDSA-AES b/libgo/go/crypto/tls/testdata/Server-TLSv12-ECDHE-ECDSA-AES
index d727468..d7e6188 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-ECDHE-ECDSA-AES
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-ECDHE-ECDSA-AES
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 97 01 00 00  93 03 03 85 04 eb 6f 6a  |..............oj|
-00000010  88 25 0b 90 fb 37 a8 63  c7 18 1a ac 91 a9 aa 24  |.%...7.c.......$|
-00000020  c3 99 1a 69 e5 f5 1e 12  73 ef 1a 00 00 04 c0 0a  |...i....s.......|
+00000000  16 03 01 00 97 01 00 00  93 03 03 86 3b 10 1e 5f  |............;.._|
+00000010  81 eb 21 bd 77 47 61 e9  3f 82 85 14 91 8c ab 7d  |..!.wGa.?......}|
+00000020  84 bd b1 f0 06 20 8a 7b  06 d6 78 00 00 04 c0 0a  |..... .{..x.....|
 00000030  00 ff 01 00 00 66 00 00  00 0e 00 0c 00 00 09 31  |.....f.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,75 +10,76 @@
 00000080  08 05 08 06 04 01 05 01  06 01 03 03 02 03 03 01  |................|
 00000090  02 01 03 02 02 02 04 02  05 02 06 02              |............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 0a 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  03 02 0e 0b 00 02 0a 00  |................|
-00000040  02 07 00 02 04 30 82 02  00 30 82 01 62 02 09 00  |.....0...0..b...|
-00000050  b8 bf 2d 47 a0 d2 eb f4  30 09 06 07 2a 86 48 ce  |..-G....0...*.H.|
-00000060  3d 04 01 30 45 31 0b 30  09 06 03 55 04 06 13 02  |=..0E1.0...U....|
-00000070  41 55 31 13 30 11 06 03  55 04 08 13 0a 53 6f 6d  |AU1.0...U....Som|
-00000080  65 2d 53 74 61 74 65 31  21 30 1f 06 03 55 04 0a  |e-State1!0...U..|
-00000090  13 18 49 6e 74 65 72 6e  65 74 20 57 69 64 67 69  |..Internet Widgi|
-000000a0  74 73 20 50 74 79 20 4c  74 64 30 1e 17 0d 31 32  |ts Pty Ltd0...12|
-000000b0  31 31 32 32 31 35 30 36  33 32 5a 17 0d 32 32 31  |1122150632Z..221|
-000000c0  31 32 30 31 35 30 36 33  32 5a 30 45 31 0b 30 09  |120150632Z0E1.0.|
-000000d0  06 03 55 04 06 13 02 41  55 31 13 30 11 06 03 55  |..U....AU1.0...U|
-000000e0  04 08 13 0a 53 6f 6d 65  2d 53 74 61 74 65 31 21  |....Some-State1!|
-000000f0  30 1f 06 03 55 04 0a 13  18 49 6e 74 65 72 6e 65  |0...U....Interne|
-00000100  74 20 57 69 64 67 69 74  73 20 50 74 79 20 4c 74  |t Widgits Pty Lt|
-00000110  64 30 81 9b 30 10 06 07  2a 86 48 ce 3d 02 01 06  |d0..0...*.H.=...|
-00000120  05 2b 81 04 00 23 03 81  86 00 04 00 c4 a1 ed be  |.+...#..........|
-00000130  98 f9 0b 48 73 36 7e c3  16 56 11 22 f2 3d 53 c3  |...Hs6~..V.".=S.|
-00000140  3b 4d 21 3d cd 6b 75 e6  f6 b0 dc 9a df 26 c1 bc  |;M!=.ku......&..|
-00000150  b2 87 f0 72 32 7c b3 64  2f 1c 90 bc ea 68 23 10  |...r2|.d/....h#.|
-00000160  7e fe e3 25 c0 48 3a 69  e0 28 6d d3 37 00 ef 04  |~..%.H:i.(m.7...|
-00000170  62 dd 0d a0 9c 70 62 83  d8 81 d3 64 31 aa 9e 97  |b....pb....d1...|
-00000180  31 bd 96 b0 68 c0 9b 23  de 76 64 3f 1a 5c 7f e9  |1...h..#.vd?.\..|
-00000190  12 0e 58 58 b6 5f 70 dd  9b d8 ea d5 d7 f5 d5 cc  |..XX._p.........|
-000001a0  b9 b6 9f 30 66 5b 66 9a  20 e2 27 e5 bf fe 3b 30  |...0f[f. .'...;0|
-000001b0  09 06 07 2a 86 48 ce 3d  04 01 03 81 8c 00 30 81  |...*.H.=......0.|
-000001c0  88 02 42 01 88 a2 4f eb  e2 45 c5 48 7d 1b ac f5  |..B...O..E.H}...|
-000001d0  ed 98 9d ae 47 70 c0 5e  1b b6 2f bd f1 b6 4d b7  |....Gp.^../...M.|
-000001e0  61 40 d3 11 a2 ce ee 0b  7e 92 7e ff 76 9d c3 3b  |a@......~.~.v..;|
-000001f0  7e a5 3f ce fa 10 e2 59  ec 47 2d 7c ac da 4e 97  |~.?....Y.G-|..N.|
-00000200  0e 15 a0 6f d0 02 42 01  4d fc be 67 13 9c 2d 05  |...o..B.M..g..-.|
-00000210  0e bd 3f a3 8c 25 c1 33  13 83 0d 94 06 bb d4 37  |..?..%.3.......7|
-00000220  7a f6 ec 7a c9 86 2e dd  d7 11 69 7f 85 7c 56 de  |z..z......i..|V.|
-00000230  fb 31 78 2b e4 c7 78 0d  ae cb be 9e 4e 36 24 31  |.1x+..x.....N6$1|
-00000240  7b 6a 0f 39 95 12 07 8f  2a 16 03 03 00 b7 0c 00  |{j.9....*.......|
-00000250  00 b3 03 00 1d 20 2f e5  7d a3 47 cd 62 43 15 28  |..... /.}.G.bC.(|
-00000260  da ac 5f bb 29 07 30 ff  f6 84 af c4 cf c2 ed 90  |.._.).0.........|
-00000270  99 5f 58 cb 3b 74 04 03  00 8b 30 81 88 02 42 01  |._X.;t....0...B.|
-00000280  4b 46 70 e2 b9 cb ea 38  8f 00 6e 47 5e 1a 1c a1  |KFp....8..nG^...|
-00000290  fb a9 1c 3d a1 88 0d c4  8a 45 af 50 32 ba 36 e9  |...=.....E.P2.6.|
-000002a0  f5 b0 09 aa 39 1a 96 9e  c6 74 98 ad b8 09 79 b4  |....9....t....y.|
-000002b0  5b 01 8f 9a 66 11 0e a8  6a ac 61 f4 40 3d 4f 9b  |[...f...j.a.@=O.|
-000002c0  9f 02 42 00 a1 2f b0 46  41 42 35 5a 4b 7b bb 22  |..B../.FAB5ZK{."|
-000002d0  d9 a5 31 23 2c 94 8f 48  39 29 c6 33 6a 52 a6 22  |..1#,..H9).3jR."|
-000002e0  5d 72 5b 2c 45 e9 0d 0a  fb f4 24 26 d4 50 5e 20  |]r[,E.....$&.P^ |
-000002f0  f4 fc 6c a9 62 4b db a1  74 88 1a ef bd 78 dd e8  |..l.bK..t....x..|
-00000300  5a 04 be ca 25 16 03 03  00 04 0e 00 00 00        |Z...%.........|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  0e 0b 00 02 0a 00 02 07  00 02 04 30 82 02 00 30  |...........0...0|
+00000050  82 01 62 02 09 00 b8 bf  2d 47 a0 d2 eb f4 30 09  |..b.....-G....0.|
+00000060  06 07 2a 86 48 ce 3d 04  01 30 45 31 0b 30 09 06  |..*.H.=..0E1.0..|
+00000070  03 55 04 06 13 02 41 55  31 13 30 11 06 03 55 04  |.U....AU1.0...U.|
+00000080  08 13 0a 53 6f 6d 65 2d  53 74 61 74 65 31 21 30  |...Some-State1!0|
+00000090  1f 06 03 55 04 0a 13 18  49 6e 74 65 72 6e 65 74  |...U....Internet|
+000000a0  20 57 69 64 67 69 74 73  20 50 74 79 20 4c 74 64  | Widgits Pty Ltd|
+000000b0  30 1e 17 0d 31 32 31 31  32 32 31 35 30 36 33 32  |0...121122150632|
+000000c0  5a 17 0d 32 32 31 31 32  30 31 35 30 36 33 32 5a  |Z..221120150632Z|
+000000d0  30 45 31 0b 30 09 06 03  55 04 06 13 02 41 55 31  |0E1.0...U....AU1|
+000000e0  13 30 11 06 03 55 04 08  13 0a 53 6f 6d 65 2d 53  |.0...U....Some-S|
+000000f0  74 61 74 65 31 21 30 1f  06 03 55 04 0a 13 18 49  |tate1!0...U....I|
+00000100  6e 74 65 72 6e 65 74 20  57 69 64 67 69 74 73 20  |nternet Widgits |
+00000110  50 74 79 20 4c 74 64 30  81 9b 30 10 06 07 2a 86  |Pty Ltd0..0...*.|
+00000120  48 ce 3d 02 01 06 05 2b  81 04 00 23 03 81 86 00  |H.=....+...#....|
+00000130  04 00 c4 a1 ed be 98 f9  0b 48 73 36 7e c3 16 56  |.........Hs6~..V|
+00000140  11 22 f2 3d 53 c3 3b 4d  21 3d cd 6b 75 e6 f6 b0  |.".=S.;M!=.ku...|
+00000150  dc 9a df 26 c1 bc b2 87  f0 72 32 7c b3 64 2f 1c  |...&.....r2|.d/.|
+00000160  90 bc ea 68 23 10 7e fe  e3 25 c0 48 3a 69 e0 28  |...h#.~..%.H:i.(|
+00000170  6d d3 37 00 ef 04 62 dd  0d a0 9c 70 62 83 d8 81  |m.7...b....pb...|
+00000180  d3 64 31 aa 9e 97 31 bd  96 b0 68 c0 9b 23 de 76  |.d1...1...h..#.v|
+00000190  64 3f 1a 5c 7f e9 12 0e  58 58 b6 5f 70 dd 9b d8  |d?.\....XX._p...|
+000001a0  ea d5 d7 f5 d5 cc b9 b6  9f 30 66 5b 66 9a 20 e2  |.........0f[f. .|
+000001b0  27 e5 bf fe 3b 30 09 06  07 2a 86 48 ce 3d 04 01  |'...;0...*.H.=..|
+000001c0  03 81 8c 00 30 81 88 02  42 01 88 a2 4f eb e2 45  |....0...B...O..E|
+000001d0  c5 48 7d 1b ac f5 ed 98  9d ae 47 70 c0 5e 1b b6  |.H}.......Gp.^..|
+000001e0  2f bd f1 b6 4d b7 61 40  d3 11 a2 ce ee 0b 7e 92  |/...M.a@......~.|
+000001f0  7e ff 76 9d c3 3b 7e a5  3f ce fa 10 e2 59 ec 47  |~.v..;~.?....Y.G|
+00000200  2d 7c ac da 4e 97 0e 15  a0 6f d0 02 42 01 4d fc  |-|..N....o..B.M.|
+00000210  be 67 13 9c 2d 05 0e bd  3f a3 8c 25 c1 33 13 83  |.g..-...?..%.3..|
+00000220  0d 94 06 bb d4 37 7a f6  ec 7a c9 86 2e dd d7 11  |.....7z..z......|
+00000230  69 7f 85 7c 56 de fb 31  78 2b e4 c7 78 0d ae cb  |i..|V..1x+..x...|
+00000240  be 9e 4e 36 24 31 7b 6a  0f 39 95 12 07 8f 2a 16  |..N6$1{j.9....*.|
+00000250  03 03 00 b7 0c 00 00 b3  03 00 1d 20 2f e5 7d a3  |........... /.}.|
+00000260  47 cd 62 43 15 28 da ac  5f bb 29 07 30 ff f6 84  |G.bC.(.._.).0...|
+00000270  af c4 cf c2 ed 90 99 5f  58 cb 3b 74 04 03 00 8b  |......._X.;t....|
+00000280  30 81 88 02 42 01 c5 d1  36 97 5b 0e 5e a6 90 50  |0...B...6.[.^..P|
+00000290  a0 2e 80 b5 df d7 5a f6  95 0d a4 c6 f0 da 2e e7  |......Z.........|
+000002a0  91 79 9f 85 2e ef ca 66  3c f7 c4 7b bd 61 70 bb  |.y.....f<..{.ap.|
+000002b0  16 c5 aa 00 35 33 ae 58  00 b3 f1 fe 0f 77 52 23  |....53.X.....wR#|
+000002c0  f4 40 ba 4b c7 e5 43 02  42 01 64 af ab 8a 87 38  |.@.K..C.B.d....8|
+000002d0  a1 7f b8 ae 84 0e a4 ff  ad 16 09 44 0b 65 67 70  |...........D.egp|
+000002e0  12 7f 1a 37 9a 1d 5e b7  3b 63 df f9 6b f1 b9 ba  |...7..^.;c..k...|
+000002f0  6b 35 8f b3 03 da 3d 61  00 3d 4e 75 b4 d0 92 d5  |k5....=a.=Nu....|
+00000300  ee 50 9d d7 f9 26 69 e6  ec cf 3b 16 03 03 00 04  |.P...&i...;.....|
+00000310  0e 00 00 00                                       |....|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 80 d6 42 fa 29 87  |....%...! ..B.).|
-00000010  df 45 d0 44 75 c7 bd a9  be e7 8c ef 3f 74 3d bd  |.E.Du.......?t=.|
-00000020  e2 49 40 ad f9 7f 90 ff  5e 75 14 03 03 00 01 01  |.I@.....^u......|
-00000030  16 03 03 00 40 dc c3 d3  7b 19 19 67 e1 f1 f7 3b  |....@...{..g...;|
-00000040  f7 76 0f da df 38 88 73  61 34 83 04 b9 ab 61 72  |.v...8.sa4....ar|
-00000050  2f 38 cb c3 1b 04 60 20  32 a8 db 46 63 85 f2 21  |/8....` 2..Fc..!|
-00000060  54 6e 9d 5d ba 0a 07 2e  9d 38 af 76 0e 29 b1 c6  |Tn.].....8.v.)..|
-00000070  d5 b0 f8 b3 39                                    |....9|
+00000000  16 03 03 00 25 10 00 00  21 20 54 db 5b a1 4c e0  |....%...! T.[.L.|
+00000010  0e 52 a2 45 e3 b4 ac 91  3d e1 de a9 3e eb 80 9e  |.R.E....=...>...|
+00000020  f5 04 7b fc 82 10 2f d9  d1 41 14 03 03 00 01 01  |..{.../..A......|
+00000030  16 03 03 00 40 47 68 cc  5e 68 3f 05 d6 f8 5c 11  |....@Gh.^h?...\.|
+00000040  08 a3 91 72 ae 4c 98 67  2f 45 ee 16 6b 8b 2d 28  |...r.L.g/E..k.-(|
+00000050  15 34 43 47 f9 46 f2 96  c2 85 d5 cc 03 e0 84 de  |.4CG.F..........|
+00000060  9c 03 fe bf c9 73 23 15  d0 0f 85 3a 76 db 9f 5d  |.....s#....:v..]|
+00000070  95 b7 de 9c c2                                    |.....|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 4f dc d7 df d3  |...........O....|
-00000020  ab 43 f7 20 57 51 28 d2  0a ce ac e0 88 5c 01 c5  |.C. WQ(......\..|
-00000030  22 f7 37 e8 ac d3 38 ab  1b 43 53 b1 a7 35 6f 86  |".7...8..CS..5o.|
-00000040  2b a5 9b 98 8f 9d a3 ff  11 d2 c7 17 03 03 00 40  |+..............@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 98 34 52 f3 44  |............4R.D|
+00000020  18 69 23 61 ef 8f e9 c0  88 9c ad 1f cb e4 8d 55  |.i#a...........U|
+00000030  bd bb 77 9c 65 9d 21 f0  54 4c 46 db 4f e6 e8 ab  |..w.e.!.TLF.O...|
+00000040  6b 1d 60 38 7f e0 2c 38  ef e7 43 17 03 03 00 40  |k.`8..,8..C....@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  3f 4c d0 ee d7 12 3c ef  73 55 b0 8d b7 78 8a de  |?L....<.sU...x..|
-00000070  d9 a5 c0 58 25 95 ae 8c  0f 85 bd ee 93 80 f6 3d  |...X%..........=|
-00000080  ac 28 a6 87 98 d2 4c e4  54 a6 a5 ef 12 70 0c 37  |.(....L.T....p.7|
+00000060  44 68 90 07 1e 8c 7f db  3e 3f 8c 28 e1 d7 41 38  |Dh......>?.(..A8|
+00000070  e2 78 04 e3 42 c2 a9 76  bb 0a ae b9 93 df 81 d7  |.x..B..v........|
+00000080  9b 0f 1d 44 19 79 ff 7c  21 8f 75 ca e2 82 cc c4  |...D.y.|!.u.....|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 e3 51 95  2e 0c 71 a9 e6 c6 4d bc  |......Q...q...M.|
-000000b0  2e 89 99 c0 db e8 59 0a  e0 a2 f8 46 ef 3b 20 c6  |......Y....F.; .|
-000000c0  8d a4 55 a2 5e                                    |..U.^|
+000000a0  00 00 00 00 00 82 1f e6  2c 3f c7 55 19 01 0b 62  |........,?.U...b|
+000000b0  1a 99 fc f8 d3 b0 38 21  41 92 1a d1 e0 43 96 da  |......8!A....C..|
+000000c0  80 4b 58 91 c8                                    |.KX..|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-Ed25519 b/libgo/go/crypto/tls/testdata/Server-TLSv12-Ed25519
index f424791..6d8b28b 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-Ed25519
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-Ed25519
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 cb 01 00 00  c7 03 03 a6 41 b7 62 67  |............A.bg|
-00000010  34 b4 48 22 67 fd e6 a9  12 29 b7 85 6a 27 c9 fc  |4.H"g....)..j'..|
-00000020  70 3a cc 0c 94 61 88 d1  9e 22 3d 00 00 38 c0 2c  |p:...a..."=..8.,|
+00000000  16 03 01 00 cb 01 00 00  c7 03 03 b8 0c b4 c2 92  |................|
+00000010  d9 b6 77 56 d9 9f 2b 94  c9 2f c8 28 4f bf 69 bc  |..wV..+../.(O.i.|
+00000020  8f 4c 81 46 a6 43 4b e7  e5 70 b2 00 00 38 c0 2c  |.L.F.CK..p...8.,|
 00000030  c0 30 00 9f cc a9 cc a8  cc aa c0 2b c0 2f 00 9e  |.0.........+./..|
 00000040  c0 24 c0 28 00 6b c0 23  c0 27 00 67 c0 0a c0 14  |.$.(.k.#.'.g....|
 00000050  00 39 c0 09 c0 13 00 33  00 9d 00 9c 00 3d 00 3c  |.9.....3.....=.<|
@@ -13,51 +13,51 @@
 000000b0  08 0b 08 04 08 05 08 06  04 01 05 01 06 01 03 03  |................|
 000000c0  02 03 03 01 02 01 03 02  02 02 04 02 05 02 06 02  |................|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 2c 00 00  |...DOWNGRD...,..|
-00000030  05 ff 01 00 01 00 16 03  03 01 3c 0b 00 01 38 00  |..........<...8.|
-00000040  01 35 00 01 32 30 82 01  2e 30 81 e1 a0 03 02 01  |.5..20...0......|
-00000050  02 02 10 0f 43 1c 42 57  93 94 1d e9 87 e4 f1 ad  |....C.BW........|
-00000060  15 00 5d 30 05 06 03 2b  65 70 30 12 31 10 30 0e  |..]0...+ep0.1.0.|
-00000070  06 03 55 04 0a 13 07 41  63 6d 65 20 43 6f 30 1e  |..U....Acme Co0.|
-00000080  17 0d 31 39 30 35 31 36  32 31 33 38 30 31 5a 17  |..190516213801Z.|
-00000090  0d 32 30 30 35 31 35 32  31 33 38 30 31 5a 30 12  |.200515213801Z0.|
-000000a0  31 10 30 0e 06 03 55 04  0a 13 07 41 63 6d 65 20  |1.0...U....Acme |
-000000b0  43 6f 30 2a 30 05 06 03  2b 65 70 03 21 00 3f e2  |Co0*0...+ep.!.?.|
-000000c0  15 2e e6 e3 ef 3f 4e 85  4a 75 77 a3 64 9e ed e0  |.....?N.Juw.d...|
-000000d0  bf 84 2c cc 92 26 8f fa  6f 34 83 aa ec 8f a3 4d  |..,..&..o4.....M|
-000000e0  30 4b 30 0e 06 03 55 1d  0f 01 01 ff 04 04 03 02  |0K0...U.........|
-000000f0  05 a0 30 13 06 03 55 1d  25 04 0c 30 0a 06 08 2b  |..0...U.%..0...+|
-00000100  06 01 05 05 07 03 01 30  0c 06 03 55 1d 13 01 01  |.......0...U....|
-00000110  ff 04 02 30 00 30 16 06  03 55 1d 11 04 0f 30 0d  |...0.0...U....0.|
-00000120  82 0b 65 78 61 6d 70 6c  65 2e 63 6f 6d 30 05 06  |..example.com0..|
-00000130  03 2b 65 70 03 41 00 63  44 ed 9c c4 be 53 24 53  |.+ep.A.cD....S$S|
-00000140  9f d2 10 8d 9f e8 21 08  90 95 39 e5 0d c1 55 ff  |......!...9...U.|
-00000150  2c 16 b7 1d fc ab 7d 4d  d4 e0 93 13 d0 a9 42 e0  |,.....}M......B.|
-00000160  b6 6b fe 5d 67 48 d7 9f  50 bc 6c cd 4b 03 83 7c  |.k.]gH..P.l.K..||
-00000170  f2 08 58 cd ac cf 0c 16  03 03 00 6c 0c 00 00 68  |..X........l...h|
-00000180  03 00 1d 20 2f e5 7d a3  47 cd 62 43 15 28 da ac  |... /.}.G.bC.(..|
-00000190  5f bb 29 07 30 ff f6 84  af c4 cf c2 ed 90 99 5f  |_.).0.........._|
-000001a0  58 cb 3b 74 08 07 00 40  b8 a3 37 f4 74 44 64 eb  |X.;t...@..7.tDd.|
-000001b0  1f 4b a1 5c 6e 3b 46 a0  b8 ce ce da 79 8d 03 d8  |.K.\n;F.....y...|
-000001c0  a2 c2 1d ca 25 21 d2 c3  cf 65 02 7e 4c d6 9a 5a  |....%!...e.~L..Z|
-000001d0  ba 60 51 71 e4 37 ab 70  18 73 f1 a0 e5 f9 e3 2d  |.`Qq.7.p.s.....-|
-000001e0  00 37 68 97 cf fa e4 08  16 03 03 00 04 0e 00 00  |.7h.............|
-000001f0  00                                                |.|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 01  |................|
+00000040  3c 0b 00 01 38 00 01 35  00 01 32 30 82 01 2e 30  |<...8..5..20...0|
+00000050  81 e1 a0 03 02 01 02 02  10 0f 43 1c 42 57 93 94  |..........C.BW..|
+00000060  1d e9 87 e4 f1 ad 15 00  5d 30 05 06 03 2b 65 70  |........]0...+ep|
+00000070  30 12 31 10 30 0e 06 03  55 04 0a 13 07 41 63 6d  |0.1.0...U....Acm|
+00000080  65 20 43 6f 30 1e 17 0d  31 39 30 35 31 36 32 31  |e Co0...19051621|
+00000090  33 38 30 31 5a 17 0d 32  30 30 35 31 35 32 31 33  |3801Z..200515213|
+000000a0  38 30 31 5a 30 12 31 10  30 0e 06 03 55 04 0a 13  |801Z0.1.0...U...|
+000000b0  07 41 63 6d 65 20 43 6f  30 2a 30 05 06 03 2b 65  |.Acme Co0*0...+e|
+000000c0  70 03 21 00 3f e2 15 2e  e6 e3 ef 3f 4e 85 4a 75  |p.!.?......?N.Ju|
+000000d0  77 a3 64 9e ed e0 bf 84  2c cc 92 26 8f fa 6f 34  |w.d.....,..&..o4|
+000000e0  83 aa ec 8f a3 4d 30 4b  30 0e 06 03 55 1d 0f 01  |.....M0K0...U...|
+000000f0  01 ff 04 04 03 02 05 a0  30 13 06 03 55 1d 25 04  |........0...U.%.|
+00000100  0c 30 0a 06 08 2b 06 01  05 05 07 03 01 30 0c 06  |.0...+.......0..|
+00000110  03 55 1d 13 01 01 ff 04  02 30 00 30 16 06 03 55  |.U.......0.0...U|
+00000120  1d 11 04 0f 30 0d 82 0b  65 78 61 6d 70 6c 65 2e  |....0...example.|
+00000130  63 6f 6d 30 05 06 03 2b  65 70 03 41 00 63 44 ed  |com0...+ep.A.cD.|
+00000140  9c c4 be 53 24 53 9f d2  10 8d 9f e8 21 08 90 95  |...S$S......!...|
+00000150  39 e5 0d c1 55 ff 2c 16  b7 1d fc ab 7d 4d d4 e0  |9...U.,.....}M..|
+00000160  93 13 d0 a9 42 e0 b6 6b  fe 5d 67 48 d7 9f 50 bc  |....B..k.]gH..P.|
+00000170  6c cd 4b 03 83 7c f2 08  58 cd ac cf 0c 16 03 03  |l.K..|..X.......|
+00000180  00 6c 0c 00 00 68 03 00  1d 20 2f e5 7d a3 47 cd  |.l...h... /.}.G.|
+00000190  62 43 15 28 da ac 5f bb  29 07 30 ff f6 84 af c4  |bC.(.._.).0.....|
+000001a0  cf c2 ed 90 99 5f 58 cb  3b 74 08 07 00 40 b6 c5  |....._X.;t...@..|
+000001b0  00 07 5f 16 0d c5 5a 13  26 8e 74 09 1a 16 7f d2  |.._...Z.&.t.....|
+000001c0  4c 90 b5 ee 29 00 7b d6  d0 59 fe 79 1f f2 d9 66  |L...).{..Y.y...f|
+000001d0  e2 5e 22 c9 27 b8 09 e5  f3 b6 c4 be 46 4a c2 a9  |.^".'.......FJ..|
+000001e0  34 f8 ba ad b6 86 8d 47  58 00 55 d9 3c 03 16 03  |4......GX.U.<...|
+000001f0  03 00 04 0e 00 00 00                              |.......|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 51 d1 53 24 ee 09  |....%...! Q.S$..|
-00000010  51 02 90 7e 6f 02 a2 54  db 6e 95 a4 af f9 43 51  |Q..~o..T.n....CQ|
-00000020  d2 ff 6b e6 26 d0 88 4d  c1 56 14 03 03 00 01 01  |..k.&..M.V......|
-00000030  16 03 03 00 28 2a 7a 63  66 3f 53 88 0a cf ef 03  |....(*zcf?S.....|
-00000040  ef 21 5b b5 57 ce 9e e5  da 84 e5 a7 d3 6d 90 c9  |.![.W........m..|
-00000050  6c f8 c1 9d cc a2 ff cb  97 5a 7c 1a 62           |l........Z|.b|
+00000000  16 03 03 00 25 10 00 00  21 20 6e 1a be aa e4 ca  |....%...! n.....|
+00000010  43 15 88 b6 fe f7 6c 69  26 1c 99 1c a9 01 75 e3  |C.....li&.....u.|
+00000020  32 ef 37 85 6c 2e 15 6e  37 24 14 03 03 00 01 01  |2.7.l..n7$......|
+00000030  16 03 03 00 28 e8 ca d2  ac 7b 38 5e 23 0a c0 62  |....(....{8^#..b|
+00000040  05 c5 ec 9a 3b 99 48 6e  72 c0 30 b3 3c 69 a1 fd  |....;.Hnr.0.<i..|
+00000050  28 e6 13 12 05 0d 7a 30  41 73 a5 45 9a           |(.....z0As.E.|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 28 00 00 00 00 00  |..........(.....|
-00000010  00 00 00 7a ee 1c df b7  14 c9 81 18 f3 51 de 24  |...z.........Q.$|
-00000020  70 ed b7 87 b9 29 b3 f7  ef 43 d0 c9 8f 35 3e 0a  |p....)...C...5>.|
-00000030  a1 c4 72 17 03 03 00 25  00 00 00 00 00 00 00 01  |..r....%........|
-00000040  f6 37 d9 31 d2 1f de a6  43 3b 60 a7 30 8c 76 cd  |.7.1....C;`.0.v.|
-00000050  47 f3 e3 a5 f3 6f e0 fe  fd 93 76 1f 0a 15 03 03  |G....o....v.....|
-00000060  00 1a 00 00 00 00 00 00  00 02 6d 2d 8d 6b f1 e3  |..........m-.k..|
-00000070  8f 21 e4 8e af b2 90 69  5b 10 3a f9              |.!.....i[.:.|
+00000010  00 00 00 09 61 1e 91 05  79 fe d3 ea 62 2c 4e 62  |....a...y...b,Nb|
+00000020  42 b4 68 20 ca 47 e3 a4  4f 33 ce ba 8c d7 ea 63  |B.h .G..O3.....c|
+00000030  54 c7 8c 17 03 03 00 25  00 00 00 00 00 00 00 01  |T......%........|
+00000040  fb 97 f4 60 38 95 26 f2  69 ea c7 91 99 08 73 7a  |...`8.&.i.....sz|
+00000050  ca 96 97 6f 9f a6 be c2  ca 1d f1 2e 08 15 03 03  |...o............|
+00000060  00 1a 00 00 00 00 00 00  00 02 b4 06 50 09 ec 73  |............P..s|
+00000070  06 83 b4 fa bb 40 21 7f  4c d9 61 8a              |.....@!.L.a.|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-ExportKeyingMaterial b/libgo/go/crypto/tls/testdata/Server-TLSv12-ExportKeyingMaterial
index b777c62..ecf765b 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-ExportKeyingMaterial
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-ExportKeyingMaterial
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 cf 01 00 00  cb 03 03 54 13 f1 1a dc  |...........T....|
-00000010  39 72 b7 e7 86 ac 83 df  9b 75 9e 71 40 7a 14 b3  |9r.......u.q@z..|
-00000020  fc ad 99 d1 8a 4f d0 d9  a3 f0 3d 00 00 38 c0 2c  |.....O....=..8.,|
+00000000  16 03 01 00 cf 01 00 00  cb 03 03 62 4c 73 03 fd  |...........bLs..|
+00000010  24 98 d0 f6 41 49 83 94  04 c8 17 51 3e 18 5d 6d  |$...AI.....Q>.]m|
+00000020  8a b8 52 c0 cf 0b 60 1e  02 53 d2 00 00 38 c0 2c  |..R...`..S...8.,|
 00000030  c0 30 00 9f cc a9 cc a8  cc aa c0 2b c0 2f 00 9e  |.0.........+./..|
 00000040  c0 24 c0 28 00 6b c0 23  c0 27 00 67 c0 0a c0 14  |.$.(.k.#.'.g....|
 00000050  00 39 c0 09 c0 13 00 33  00 9d 00 9c 00 3d 00 3c  |.9.....3.....=.<|
@@ -14,82 +14,82 @@
 000000c0  06 01 03 03 02 03 03 01  02 01 03 02 02 02 04 02  |................|
 000000d0  05 02 06 02                                       |....|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 35 02 00 00  31 03 03 00 00 00 00 00  |....5...1.......|
+00000000  16 03 03 00 3b 02 00 00  37 03 03 00 00 00 00 00  |....;...7.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 30 00 00  |...DOWNGRD...0..|
-00000030  09 00 23 00 00 ff 01 00  01 00 16 03 03 02 59 0b  |..#...........Y.|
-00000040  00 02 55 00 02 52 00 02  4f 30 82 02 4b 30 82 01  |..U..R..O0..K0..|
-00000050  b4 a0 03 02 01 02 02 09  00 e8 f0 9d 3f e2 5b ea  |............?.[.|
-00000060  a6 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |.0...*.H........|
-00000070  30 1f 31 0b 30 09 06 03  55 04 0a 13 02 47 6f 31  |0.1.0...U....Go1|
-00000080  10 30 0e 06 03 55 04 03  13 07 47 6f 20 52 6f 6f  |.0...U....Go Roo|
-00000090  74 30 1e 17 0d 31 36 30  31 30 31 30 30 30 30 30  |t0...16010100000|
-000000a0  30 5a 17 0d 32 35 30 31  30 31 30 30 30 30 30 30  |0Z..250101000000|
-000000b0  5a 30 1a 31 0b 30 09 06  03 55 04 0a 13 02 47 6f  |Z0.1.0...U....Go|
-000000c0  31 0b 30 09 06 03 55 04  03 13 02 47 6f 30 81 9f  |1.0...U....Go0..|
-000000d0  30 0d 06 09 2a 86 48 86  f7 0d 01 01 01 05 00 03  |0...*.H.........|
-000000e0  81 8d 00 30 81 89 02 81  81 00 db 46 7d 93 2e 12  |...0.......F}...|
-000000f0  27 06 48 bc 06 28 21 ab  7e c4 b6 a2 5d fe 1e 52  |'.H..(!.~...]..R|
-00000100  45 88 7a 36 47 a5 08 0d  92 42 5b c2 81 c0 be 97  |E.z6G....B[.....|
-00000110  79 98 40 fb 4f 6d 14 fd  2b 13 8b c2 a5 2e 67 d8  |y.@.Om..+.....g.|
-00000120  d4 09 9e d6 22 38 b7 4a  0b 74 73 2b c2 34 f1 d1  |...."8.J.ts+.4..|
-00000130  93 e5 96 d9 74 7b f3 58  9f 6c 61 3c c0 b0 41 d4  |....t{.X.la<..A.|
-00000140  d9 2b 2b 24 23 77 5b 1c  3b bd 75 5d ce 20 54 cf  |.++$#w[.;.u]. T.|
-00000150  a1 63 87 1d 1e 24 c4 f3  1d 1a 50 8b aa b6 14 43  |.c...$....P....C|
-00000160  ed 97 a7 75 62 f4 14 c8  52 d7 02 03 01 00 01 a3  |...ub...R.......|
-00000170  81 93 30 81 90 30 0e 06  03 55 1d 0f 01 01 ff 04  |..0..0...U......|
-00000180  04 03 02 05 a0 30 1d 06  03 55 1d 25 04 16 30 14  |.....0...U.%..0.|
-00000190  06 08 2b 06 01 05 05 07  03 01 06 08 2b 06 01 05  |..+.........+...|
-000001a0  05 07 03 02 30 0c 06 03  55 1d 13 01 01 ff 04 02  |....0...U.......|
-000001b0  30 00 30 19 06 03 55 1d  0e 04 12 04 10 9f 91 16  |0.0...U.........|
-000001c0  1f 43 43 3e 49 a6 de 6d  b6 80 d7 9f 60 30 1b 06  |.CC>I..m....`0..|
-000001d0  03 55 1d 23 04 14 30 12  80 10 48 13 49 4d 13 7e  |.U.#..0...H.IM.~|
-000001e0  16 31 bb a3 01 d5 ac ab  6e 7b 30 19 06 03 55 1d  |.1......n{0...U.|
-000001f0  11 04 12 30 10 82 0e 65  78 61 6d 70 6c 65 2e 67  |...0...example.g|
-00000200  6f 6c 61 6e 67 30 0d 06  09 2a 86 48 86 f7 0d 01  |olang0...*.H....|
-00000210  01 0b 05 00 03 81 81 00  9d 30 cc 40 2b 5b 50 a0  |.........0.@+[P.|
-00000220  61 cb ba e5 53 58 e1 ed  83 28 a9 58 1a a9 38 a4  |a...SX...(.X..8.|
-00000230  95 a1 ac 31 5a 1a 84 66  3d 43 d3 2d d9 0b f2 97  |...1Z..f=C.-....|
-00000240  df d3 20 64 38 92 24 3a  00 bc cf 9c 7d b7 40 20  |.. d8.$:....}.@ |
-00000250  01 5f aa d3 16 61 09 a2  76 fd 13 c3 cc e1 0c 5c  |._...a..v......\|
-00000260  ee b1 87 82 f1 6c 04 ed  73 bb b3 43 77 8d 0c 1c  |.....l..s..Cw...|
-00000270  f1 0f a1 d8 40 83 61 c9  4c 72 2b 9d ae db 46 06  |....@.a.Lr+...F.|
-00000280  06 4d f4 c1 b3 3e c0 d1  bd 42 d4 db fe 3d 13 60  |.M...>...B...=.`|
-00000290  84 5c 21 d3 3b e9 fa e7  16 03 03 00 ac 0c 00 00  |.\!.;...........|
-000002a0  a8 03 00 1d 20 2f e5 7d  a3 47 cd 62 43 15 28 da  |.... /.}.G.bC.(.|
-000002b0  ac 5f bb 29 07 30 ff f6  84 af c4 cf c2 ed 90 99  |._.).0..........|
-000002c0  5f 58 cb 3b 74 04 01 00  80 8e 2b 18 d7 2c 6d 91  |_X.;t.....+..,m.|
-000002d0  12 b3 ba 39 20 4f 43 60  08 d3 63 6e 55 01 50 3c  |...9 OC`..cnU.P<|
-000002e0  2b 6d 09 ca 27 d6 f7 42  d1 74 19 e1 6b 06 93 06  |+m..'..B.t..k...|
-000002f0  6e e6 c4 23 cc 1b c8 de  8f 30 c2 4d 22 36 10 df  |n..#.....0.M"6..|
-00000300  32 cb f3 4e ec 9a b1 d6  63 7d 11 4e 58 d2 b7 7a  |2..N....c}.NX..z|
-00000310  70 31 4b 92 3e 27 ba f0  85 ca 7d 43 c7 68 04 6a  |p1K.>'....}C.h.j|
-00000320  fa c4 ac c1 16 8b 18 c9  2e 94 2e c2 a6 f3 f0 f3  |................|
-00000330  fb 8a 21 6d 4f 3d bc 0f  fa 21 fd d5 78 57 6c 38  |..!mO=...!..xWl8|
-00000340  09 48 64 d6 ca b6 31 3c  39 16 03 03 00 04 0e 00  |.Hd...1<9.......|
-00000350  00 00                                             |..|
+00000030  0f 00 23 00 00 ff 01 00  01 00 00 0b 00 02 01 00  |..#.............|
+00000040  16 03 03 02 59 0b 00 02  55 00 02 52 00 02 4f 30  |....Y...U..R..O0|
+00000050  82 02 4b 30 82 01 b4 a0  03 02 01 02 02 09 00 e8  |..K0............|
+00000060  f0 9d 3f e2 5b ea a6 30  0d 06 09 2a 86 48 86 f7  |..?.[..0...*.H..|
+00000070  0d 01 01 0b 05 00 30 1f  31 0b 30 09 06 03 55 04  |......0.1.0...U.|
+00000080  0a 13 02 47 6f 31 10 30  0e 06 03 55 04 03 13 07  |...Go1.0...U....|
+00000090  47 6f 20 52 6f 6f 74 30  1e 17 0d 31 36 30 31 30  |Go Root0...16010|
+000000a0  31 30 30 30 30 30 30 5a  17 0d 32 35 30 31 30 31  |1000000Z..250101|
+000000b0  30 30 30 30 30 30 5a 30  1a 31 0b 30 09 06 03 55  |000000Z0.1.0...U|
+000000c0  04 0a 13 02 47 6f 31 0b  30 09 06 03 55 04 03 13  |....Go1.0...U...|
+000000d0  02 47 6f 30 81 9f 30 0d  06 09 2a 86 48 86 f7 0d  |.Go0..0...*.H...|
+000000e0  01 01 01 05 00 03 81 8d  00 30 81 89 02 81 81 00  |.........0......|
+000000f0  db 46 7d 93 2e 12 27 06  48 bc 06 28 21 ab 7e c4  |.F}...'.H..(!.~.|
+00000100  b6 a2 5d fe 1e 52 45 88  7a 36 47 a5 08 0d 92 42  |..]..RE.z6G....B|
+00000110  5b c2 81 c0 be 97 79 98  40 fb 4f 6d 14 fd 2b 13  |[.....y.@.Om..+.|
+00000120  8b c2 a5 2e 67 d8 d4 09  9e d6 22 38 b7 4a 0b 74  |....g....."8.J.t|
+00000130  73 2b c2 34 f1 d1 93 e5  96 d9 74 7b f3 58 9f 6c  |s+.4......t{.X.l|
+00000140  61 3c c0 b0 41 d4 d9 2b  2b 24 23 77 5b 1c 3b bd  |a<..A..++$#w[.;.|
+00000150  75 5d ce 20 54 cf a1 63  87 1d 1e 24 c4 f3 1d 1a  |u]. T..c...$....|
+00000160  50 8b aa b6 14 43 ed 97  a7 75 62 f4 14 c8 52 d7  |P....C...ub...R.|
+00000170  02 03 01 00 01 a3 81 93  30 81 90 30 0e 06 03 55  |........0..0...U|
+00000180  1d 0f 01 01 ff 04 04 03  02 05 a0 30 1d 06 03 55  |...........0...U|
+00000190  1d 25 04 16 30 14 06 08  2b 06 01 05 05 07 03 01  |.%..0...+.......|
+000001a0  06 08 2b 06 01 05 05 07  03 02 30 0c 06 03 55 1d  |..+.......0...U.|
+000001b0  13 01 01 ff 04 02 30 00  30 19 06 03 55 1d 0e 04  |......0.0...U...|
+000001c0  12 04 10 9f 91 16 1f 43  43 3e 49 a6 de 6d b6 80  |.......CC>I..m..|
+000001d0  d7 9f 60 30 1b 06 03 55  1d 23 04 14 30 12 80 10  |..`0...U.#..0...|
+000001e0  48 13 49 4d 13 7e 16 31  bb a3 01 d5 ac ab 6e 7b  |H.IM.~.1......n{|
+000001f0  30 19 06 03 55 1d 11 04  12 30 10 82 0e 65 78 61  |0...U....0...exa|
+00000200  6d 70 6c 65 2e 67 6f 6c  61 6e 67 30 0d 06 09 2a  |mple.golang0...*|
+00000210  86 48 86 f7 0d 01 01 0b  05 00 03 81 81 00 9d 30  |.H.............0|
+00000220  cc 40 2b 5b 50 a0 61 cb  ba e5 53 58 e1 ed 83 28  |.@+[P.a...SX...(|
+00000230  a9 58 1a a9 38 a4 95 a1  ac 31 5a 1a 84 66 3d 43  |.X..8....1Z..f=C|
+00000240  d3 2d d9 0b f2 97 df d3  20 64 38 92 24 3a 00 bc  |.-...... d8.$:..|
+00000250  cf 9c 7d b7 40 20 01 5f  aa d3 16 61 09 a2 76 fd  |..}.@ ._...a..v.|
+00000260  13 c3 cc e1 0c 5c ee b1  87 82 f1 6c 04 ed 73 bb  |.....\.....l..s.|
+00000270  b3 43 77 8d 0c 1c f1 0f  a1 d8 40 83 61 c9 4c 72  |.Cw.......@.a.Lr|
+00000280  2b 9d ae db 46 06 06 4d  f4 c1 b3 3e c0 d1 bd 42  |+...F..M...>...B|
+00000290  d4 db fe 3d 13 60 84 5c  21 d3 3b e9 fa e7 16 03  |...=.`.\!.;.....|
+000002a0  03 00 ac 0c 00 00 a8 03  00 1d 20 2f e5 7d a3 47  |.......... /.}.G|
+000002b0  cd 62 43 15 28 da ac 5f  bb 29 07 30 ff f6 84 af  |.bC.(.._.).0....|
+000002c0  c4 cf c2 ed 90 99 5f 58  cb 3b 74 08 04 00 80 2d  |......_X.;t....-|
+000002d0  54 87 fa c9 e5 97 ad a0  6d 54 89 b1 37 24 af df  |T.......mT..7$..|
+000002e0  0f 3e ef 34 f7 6a 5f 1b  06 a5 b9 b4 6d 46 7f b1  |.>.4.j_.....mF..|
+000002f0  ab e4 5c dd c1 3f 98 93  61 e5 81 8a 6c 3d 2f b3  |..\..?..a...l=/.|
+00000300  3c 59 b9 78 45 ba bd 02  b1 a0 72 cb c3 59 b1 55  |<Y.xE.....r..Y.U|
+00000310  da a3 a8 ea ac b2 8a c0  23 e7 e7 ca c9 9f 5d 1b  |........#.....].|
+00000320  a8 b4 7c c3 9f cf c5 3c  5f 07 d8 49 8c 95 f1 ce  |..|....<_..I....|
+00000330  27 d0 d1 3f 74 44 df e4  12 ea e2 0e 43 6e d2 53  |'..?tD......Cn.S|
+00000340  7e 39 41 d7 71 c1 3c 2c  a6 0b 4e e3 4d 9a 02 16  |~9A.q.<,..N.M...|
+00000350  03 03 00 04 0e 00 00 00                           |........|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 af 4c 6e 57 5e f7  |....%...! .LnW^.|
-00000010  49 e2 89 33 f9 47 59 7c  81 5c 63 74 cd 27 6a 65  |I..3.GY|.\ct.'je|
-00000020  b6 55 d1 72 ad 60 08 d0  c6 6a 14 03 03 00 01 01  |.U.r.`...j......|
-00000030  16 03 03 00 28 69 f2 a5  05 8c a5 a7 5f 8f 8b cf  |....(i......_...|
-00000040  7a 18 fb f4 45 5e 1f f8  ba 60 2e fa c6 8c c6 57  |z...E^...`.....W|
-00000050  89 ac 8a 85 71 00 21 65  f3 a6 99 5d 3b           |....q.!e...];|
+00000000  16 03 03 00 25 10 00 00  21 20 37 47 1b 8d ef 6c  |....%...! 7G...l|
+00000010  dc 59 b2 a5 a2 f6 8e 1b  f6 1b ab da ec 9c a7 ff  |.Y..............|
+00000020  4a f9 0e 9b 02 b0 8f bc  a1 55 14 03 03 00 01 01  |J........U......|
+00000030  16 03 03 00 28 a2 53 52  8b df 86 63 d9 f8 a8 7e  |....(.SR...c...~|
+00000040  f5 b4 19 1a 5d 02 9a 48  94 68 6d a2 90 13 93 42  |....]..H.hm....B|
+00000050  87 52 92 50 7c 45 91 b9  91 49 83 66 a6           |.R.P|E...I.f.|
 >>> Flow 4 (server to client)
 00000000  16 03 03 00 82 04 00 00  7e 00 00 00 00 00 78 50  |........~.....xP|
 00000010  46 ad c1 db a8 38 86 7b  2b bb fd d0 c3 42 3e 00  |F....8.{+....B>.|
 00000020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 94  |................|
-00000030  6f ec 80 83 61 0d 24 39  c2 e0 e0 85 93 37 1f 40  |o...a.$9.....7.@|
-00000040  0a 0e a7 45 0e 81 37 6c  7a 11 ed e6 c0 f1 69 23  |...E..7lz.....i#|
-00000050  df 14 01 ff ff 52 2f ac  da 15 14 5b a2 07 c8 bc  |.....R/....[....|
-00000060  82 4f 2b 5b 71 33 94 09  17 b4 83 76 62 b7 46 9d  |.O+[q3.....vb.F.|
-00000070  6f 0d de c2 8b a8 ce 6e  2e df f4 a3 59 fc af f2  |o......n....Y...|
-00000080  fe 3f 1e d6 75 b5 63 14  03 03 00 01 01 16 03 03  |.?..u.c.........|
-00000090  00 28 00 00 00 00 00 00  00 00 ae 8b f0 21 94 08  |.(...........!..|
-000000a0  ec aa a6 f5 40 81 5a a2  42 f7 0a 9b 6b e6 8d 7a  |....@.Z.B...k..z|
-000000b0  44 e1 85 41 fc 83 f0 e1  c0 c2 17 03 03 00 25 00  |D..A..........%.|
-000000c0  00 00 00 00 00 00 01 c4  a7 e5 72 e4 09 d0 21 b8  |..........r...!.|
-000000d0  99 ae f0 6a 2c 1c a4 ca  ae 44 79 92 ae 25 f8 37  |...j,....Dy..%.7|
-000000e0  d8 49 f3 21 15 03 03 00  1a 00 00 00 00 00 00 00  |.I.!............|
-000000f0  02 76 b5 79 33 82 76 50  e3 2b 03 e9 b8 14 2d 51  |.v.y3.vP.+....-Q|
-00000100  ac f9 6d                                          |..m|
+00000030  6f ec 80 83 61 a2 90 f4  4c 03 c8 09 b9 a6 c6 6f  |o...a...L......o|
+00000040  c7 52 57 3f 3f 92 71 f3  f8 02 43 69 19 f0 bf 78  |.RW??.q...Ci...x|
+00000050  6a 00 cc 0a 96 6f 80 5d  62 42 9b 6b 7c 00 e0 26  |j....o.]bB.k|..&|
+00000060  90 ef d9 26 f1 33 94 6e  13 9a ec be 91 00 1e 64  |...&.3.n.......d|
+00000070  eb 12 ae b9 74 f9 85 d1  b7 91 bd e1 e2 da ac b0  |....t...........|
+00000080  71 ca 1b 65 1a e7 83 14  03 03 00 01 01 16 03 03  |q..e............|
+00000090  00 28 00 00 00 00 00 00  00 00 fa e4 1b 3b 28 9b  |.(...........;(.|
+000000a0  f8 28 d7 26 d7 6a 67 33  1f 4a 39 d9 ac 59 6f fc  |.(.&.jg3.J9..Yo.|
+000000b0  2b 84 6c b9 73 70 9b 30  8c d0 17 03 03 00 25 00  |+.l.sp.0......%.|
+000000c0  00 00 00 00 00 00 01 0c  6e 13 cf 3d 10 65 2f e5  |........n..=.e/.|
+000000d0  4f fd f9 b6 34 11 c2 05  60 d5 16 66 68 65 29 fa  |O...4...`..fhe).|
+000000e0  e6 97 e4 dc 15 03 03 00  1a 00 00 00 00 00 00 00  |................|
+000000f0  02 58 9a 0d 41 6f 0f 72  c7 43 16 46 83 dd 26 5f  |.X..Ao.r.C.F..&_|
+00000100  3a ee 1a                                          |:..|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-IssueTicket b/libgo/go/crypto/tls/testdata/Server-TLSv12-IssueTicket
index 925fad0..42cbc34 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-IssueTicket
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-IssueTicket
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 9b 01 00 00  97 03 03 d7 1e 2f 33 47  |............./3G|
-00000010  7e 92 97 4b 62 40 60 32  de ee 2e bd 5c 57 3c f8  |~..Kb@`2....\W<.|
-00000020  6a 4a 78 23 4f ad db 3c  33 ea f2 00 00 04 00 2f  |jJx#O..<3....../|
+00000000  16 03 01 00 9b 01 00 00  97 03 03 22 89 61 60 36  |...........".a`6|
+00000010  06 c6 00 3f af 09 28 13  d8 7e ae 18 55 40 4a 4e  |...?..(..~..U@JN|
+00000020  40 13 e2 f8 43 5f be e5  f6 51 04 00 00 04 00 2f  |@...C_...Q...../|
 00000030  00 ff 01 00 00 6a 00 00  00 0e 00 0c 00 00 09 31  |.....j.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,83 +10,83 @@
 00000080  08 0b 08 04 08 05 08 06  04 01 05 01 06 01 03 03  |................|
 00000090  02 03 03 01 02 01 03 02  02 02 04 02 05 02 06 02  |................|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 35 02 00 00  31 03 03 00 00 00 00 00  |....5...1.......|
+00000000  16 03 03 00 3b 02 00 00  37 03 03 00 00 00 00 00  |....;...7.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  09 00 23 00 00 ff 01 00  01 00 16 03 03 02 59 0b  |..#...........Y.|
-00000040  00 02 55 00 02 52 00 02  4f 30 82 02 4b 30 82 01  |..U..R..O0..K0..|
-00000050  b4 a0 03 02 01 02 02 09  00 e8 f0 9d 3f e2 5b ea  |............?.[.|
-00000060  a6 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |.0...*.H........|
-00000070  30 1f 31 0b 30 09 06 03  55 04 0a 13 02 47 6f 31  |0.1.0...U....Go1|
-00000080  10 30 0e 06 03 55 04 03  13 07 47 6f 20 52 6f 6f  |.0...U....Go Roo|
-00000090  74 30 1e 17 0d 31 36 30  31 30 31 30 30 30 30 30  |t0...16010100000|
-000000a0  30 5a 17 0d 32 35 30 31  30 31 30 30 30 30 30 30  |0Z..250101000000|
-000000b0  5a 30 1a 31 0b 30 09 06  03 55 04 0a 13 02 47 6f  |Z0.1.0...U....Go|
-000000c0  31 0b 30 09 06 03 55 04  03 13 02 47 6f 30 81 9f  |1.0...U....Go0..|
-000000d0  30 0d 06 09 2a 86 48 86  f7 0d 01 01 01 05 00 03  |0...*.H.........|
-000000e0  81 8d 00 30 81 89 02 81  81 00 db 46 7d 93 2e 12  |...0.......F}...|
-000000f0  27 06 48 bc 06 28 21 ab  7e c4 b6 a2 5d fe 1e 52  |'.H..(!.~...]..R|
-00000100  45 88 7a 36 47 a5 08 0d  92 42 5b c2 81 c0 be 97  |E.z6G....B[.....|
-00000110  79 98 40 fb 4f 6d 14 fd  2b 13 8b c2 a5 2e 67 d8  |y.@.Om..+.....g.|
-00000120  d4 09 9e d6 22 38 b7 4a  0b 74 73 2b c2 34 f1 d1  |...."8.J.ts+.4..|
-00000130  93 e5 96 d9 74 7b f3 58  9f 6c 61 3c c0 b0 41 d4  |....t{.X.la<..A.|
-00000140  d9 2b 2b 24 23 77 5b 1c  3b bd 75 5d ce 20 54 cf  |.++$#w[.;.u]. T.|
-00000150  a1 63 87 1d 1e 24 c4 f3  1d 1a 50 8b aa b6 14 43  |.c...$....P....C|
-00000160  ed 97 a7 75 62 f4 14 c8  52 d7 02 03 01 00 01 a3  |...ub...R.......|
-00000170  81 93 30 81 90 30 0e 06  03 55 1d 0f 01 01 ff 04  |..0..0...U......|
-00000180  04 03 02 05 a0 30 1d 06  03 55 1d 25 04 16 30 14  |.....0...U.%..0.|
-00000190  06 08 2b 06 01 05 05 07  03 01 06 08 2b 06 01 05  |..+.........+...|
-000001a0  05 07 03 02 30 0c 06 03  55 1d 13 01 01 ff 04 02  |....0...U.......|
-000001b0  30 00 30 19 06 03 55 1d  0e 04 12 04 10 9f 91 16  |0.0...U.........|
-000001c0  1f 43 43 3e 49 a6 de 6d  b6 80 d7 9f 60 30 1b 06  |.CC>I..m....`0..|
-000001d0  03 55 1d 23 04 14 30 12  80 10 48 13 49 4d 13 7e  |.U.#..0...H.IM.~|
-000001e0  16 31 bb a3 01 d5 ac ab  6e 7b 30 19 06 03 55 1d  |.1......n{0...U.|
-000001f0  11 04 12 30 10 82 0e 65  78 61 6d 70 6c 65 2e 67  |...0...example.g|
-00000200  6f 6c 61 6e 67 30 0d 06  09 2a 86 48 86 f7 0d 01  |olang0...*.H....|
-00000210  01 0b 05 00 03 81 81 00  9d 30 cc 40 2b 5b 50 a0  |.........0.@+[P.|
-00000220  61 cb ba e5 53 58 e1 ed  83 28 a9 58 1a a9 38 a4  |a...SX...(.X..8.|
-00000230  95 a1 ac 31 5a 1a 84 66  3d 43 d3 2d d9 0b f2 97  |...1Z..f=C.-....|
-00000240  df d3 20 64 38 92 24 3a  00 bc cf 9c 7d b7 40 20  |.. d8.$:....}.@ |
-00000250  01 5f aa d3 16 61 09 a2  76 fd 13 c3 cc e1 0c 5c  |._...a..v......\|
-00000260  ee b1 87 82 f1 6c 04 ed  73 bb b3 43 77 8d 0c 1c  |.....l..s..Cw...|
-00000270  f1 0f a1 d8 40 83 61 c9  4c 72 2b 9d ae db 46 06  |....@.a.Lr+...F.|
-00000280  06 4d f4 c1 b3 3e c0 d1  bd 42 d4 db fe 3d 13 60  |.M...>...B...=.`|
-00000290  84 5c 21 d3 3b e9 fa e7  16 03 03 00 04 0e 00 00  |.\!.;...........|
-000002a0  00                                                |.|
+00000030  0f 00 23 00 00 ff 01 00  01 00 00 0b 00 02 01 00  |..#.............|
+00000040  16 03 03 02 59 0b 00 02  55 00 02 52 00 02 4f 30  |....Y...U..R..O0|
+00000050  82 02 4b 30 82 01 b4 a0  03 02 01 02 02 09 00 e8  |..K0............|
+00000060  f0 9d 3f e2 5b ea a6 30  0d 06 09 2a 86 48 86 f7  |..?.[..0...*.H..|
+00000070  0d 01 01 0b 05 00 30 1f  31 0b 30 09 06 03 55 04  |......0.1.0...U.|
+00000080  0a 13 02 47 6f 31 10 30  0e 06 03 55 04 03 13 07  |...Go1.0...U....|
+00000090  47 6f 20 52 6f 6f 74 30  1e 17 0d 31 36 30 31 30  |Go Root0...16010|
+000000a0  31 30 30 30 30 30 30 5a  17 0d 32 35 30 31 30 31  |1000000Z..250101|
+000000b0  30 30 30 30 30 30 5a 30  1a 31 0b 30 09 06 03 55  |000000Z0.1.0...U|
+000000c0  04 0a 13 02 47 6f 31 0b  30 09 06 03 55 04 03 13  |....Go1.0...U...|
+000000d0  02 47 6f 30 81 9f 30 0d  06 09 2a 86 48 86 f7 0d  |.Go0..0...*.H...|
+000000e0  01 01 01 05 00 03 81 8d  00 30 81 89 02 81 81 00  |.........0......|
+000000f0  db 46 7d 93 2e 12 27 06  48 bc 06 28 21 ab 7e c4  |.F}...'.H..(!.~.|
+00000100  b6 a2 5d fe 1e 52 45 88  7a 36 47 a5 08 0d 92 42  |..]..RE.z6G....B|
+00000110  5b c2 81 c0 be 97 79 98  40 fb 4f 6d 14 fd 2b 13  |[.....y.@.Om..+.|
+00000120  8b c2 a5 2e 67 d8 d4 09  9e d6 22 38 b7 4a 0b 74  |....g....."8.J.t|
+00000130  73 2b c2 34 f1 d1 93 e5  96 d9 74 7b f3 58 9f 6c  |s+.4......t{.X.l|
+00000140  61 3c c0 b0 41 d4 d9 2b  2b 24 23 77 5b 1c 3b bd  |a<..A..++$#w[.;.|
+00000150  75 5d ce 20 54 cf a1 63  87 1d 1e 24 c4 f3 1d 1a  |u]. T..c...$....|
+00000160  50 8b aa b6 14 43 ed 97  a7 75 62 f4 14 c8 52 d7  |P....C...ub...R.|
+00000170  02 03 01 00 01 a3 81 93  30 81 90 30 0e 06 03 55  |........0..0...U|
+00000180  1d 0f 01 01 ff 04 04 03  02 05 a0 30 1d 06 03 55  |...........0...U|
+00000190  1d 25 04 16 30 14 06 08  2b 06 01 05 05 07 03 01  |.%..0...+.......|
+000001a0  06 08 2b 06 01 05 05 07  03 02 30 0c 06 03 55 1d  |..+.......0...U.|
+000001b0  13 01 01 ff 04 02 30 00  30 19 06 03 55 1d 0e 04  |......0.0...U...|
+000001c0  12 04 10 9f 91 16 1f 43  43 3e 49 a6 de 6d b6 80  |.......CC>I..m..|
+000001d0  d7 9f 60 30 1b 06 03 55  1d 23 04 14 30 12 80 10  |..`0...U.#..0...|
+000001e0  48 13 49 4d 13 7e 16 31  bb a3 01 d5 ac ab 6e 7b  |H.IM.~.1......n{|
+000001f0  30 19 06 03 55 1d 11 04  12 30 10 82 0e 65 78 61  |0...U....0...exa|
+00000200  6d 70 6c 65 2e 67 6f 6c  61 6e 67 30 0d 06 09 2a  |mple.golang0...*|
+00000210  86 48 86 f7 0d 01 01 0b  05 00 03 81 81 00 9d 30  |.H.............0|
+00000220  cc 40 2b 5b 50 a0 61 cb  ba e5 53 58 e1 ed 83 28  |.@+[P.a...SX...(|
+00000230  a9 58 1a a9 38 a4 95 a1  ac 31 5a 1a 84 66 3d 43  |.X..8....1Z..f=C|
+00000240  d3 2d d9 0b f2 97 df d3  20 64 38 92 24 3a 00 bc  |.-...... d8.$:..|
+00000250  cf 9c 7d b7 40 20 01 5f  aa d3 16 61 09 a2 76 fd  |..}.@ ._...a..v.|
+00000260  13 c3 cc e1 0c 5c ee b1  87 82 f1 6c 04 ed 73 bb  |.....\.....l..s.|
+00000270  b3 43 77 8d 0c 1c f1 0f  a1 d8 40 83 61 c9 4c 72  |.Cw.......@.a.Lr|
+00000280  2b 9d ae db 46 06 06 4d  f4 c1 b3 3e c0 d1 bd 42  |+...F..M...>...B|
+00000290  d4 db fe 3d 13 60 84 5c  21 d3 3b e9 fa e7 16 03  |...=.`.\!.;.....|
+000002a0  03 00 04 0e 00 00 00                              |.......|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 86 10 00 00  82 00 80 d7 37 f9 ec 2b  |............7..+|
-00000010  61 07 05 d0 90 28 33 64  14 8c 71 16 05 0f 72 31  |a....(3d..q...r1|
-00000020  83 ea 88 be b3 27 1a 4a  09 c5 28 66 ea 14 bb 17  |.....'.J..(f....|
-00000030  2e 12 56 d1 c5 7e cf 35  a8 77 4d 48 1a a1 b1 bd  |..V..~.5.wMH....|
-00000040  63 a4 40 8c 04 20 00 5c  d7 ac 22 34 ac 46 08 ea  |c.@.. .\.."4.F..|
-00000050  53 e6 7e aa 6f 19 03 ec  e8 17 3a f9 26 35 0e 3e  |S.~.o.....:.&5.>|
-00000060  47 1a 3e 13 57 a9 e9 71  7a 09 78 82 a9 7a ea d5  |G.>.W..qz.x..z..|
-00000070  7d 14 15 b5 98 0b 92 9c  e3 e3 82 6f 95 ba 00 b7  |}..........o....|
-00000080  6f b6 24 e1 be 14 39 63  6f 57 cb 14 03 03 00 01  |o.$...9coW......|
-00000090  01 16 03 03 00 40 3a 85  bc 9c 00 57 6c db cf e8  |.....@:....Wl...|
-000000a0  99 7a 7c ee 09 df 56 8a  3a ac dd 1f f9 bf 1f 6c  |.z|...V.:......l|
-000000b0  dc 38 5b 2d 6a ad 36 26  b7 4f 23 7f 23 5f 69 fa  |.8[-j.6&.O#.#_i.|
-000000c0  e5 ea f4 1e 26 6e e4 a6  80 c1 b6 29 e7 0b b8 03  |....&n.....)....|
-000000d0  8e 88 d3 29 a2 99                                 |...)..|
+00000000  16 03 03 00 86 10 00 00  82 00 80 d0 71 60 6a 92  |............q`j.|
+00000010  9b 01 87 1b d3 7d 28 a8  50 aa b9 c3 0e a3 b0 2d  |.....}(.P......-|
+00000020  2f 29 1d f1 42 39 6f 65  bb 1a 0e bc 82 43 e9 c6  |/)..B9oe.....C..|
+00000030  c6 cc df 4e c6 f2 2b 85  26 cb 63 12 f7 a1 84 a1  |...N..+.&.c.....|
+00000040  25 8b 8f 02 f2 c1 fe 09  79 89 ba da b7 b1 32 4c  |%.......y.....2L|
+00000050  56 4e d6 02 14 1a ed 03  87 ad d1 3e f1 5d 41 c5  |VN.........>.]A.|
+00000060  c0 fe 8e ce 6c c2 ce 2e  4a f6 4f a0 f9 d7 a9 2d  |....l...J.O....-|
+00000070  22 62 78 5a a6 cb bb 62  98 20 fe f6 3d d3 b6 f8  |"bxZ...b. ..=...|
+00000080  7f 1a 5a e5 59 32 93 bd  f0 82 e5 14 03 03 00 01  |..Z.Y2..........|
+00000090  01 16 03 03 00 40 96 3c  c7 3f 87 d7 2e fb fb 2f  |.....@.<.?...../|
+000000a0  a0 0f 60 fc a9 9c 27 c2  0d e0 a6 f9 76 8c 94 59  |..`...'.....v..Y|
+000000b0  02 ae 5c a3 b2 20 6f c7  a5 a3 ad 98 87 cf 29 02  |..\.. o.......).|
+000000c0  87 ce db 09 ee b7 eb f4  81 59 37 13 15 5b 91 fe  |.........Y7..[..|
+000000d0  e7 b3 6f 69 fd d2                                 |..oi..|
 >>> Flow 4 (server to client)
 00000000  16 03 03 00 82 04 00 00  7e 00 00 00 00 00 78 50  |........~.....xP|
 00000010  46 ad c1 db a8 38 86 7b  2b bb fd d0 c3 42 3e 00  |F....8.{+....B>.|
 00000020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 94  |................|
-00000030  6f 2c 9f 83 61 fe 79 79  ae dc c2 a0 99 e2 59 46  |o,..a.yy......YF|
-00000040  79 88 b8 ed 74 da ef da  3e 7e 69 af 34 63 b3 7f  |y...t...>~i.4c..|
-00000050  52 e1 07 4d f8 40 69 63  85 8c 66 a6 d6 f7 b7 b0  |R..M.@ic..f.....|
-00000060  f2 d4 12 f4 2a 33 94 64  76 91 5b 6c 7d 49 37 3c  |....*3.dv.[l}I7<|
-00000070  0b 76 3e d6 5c 0b 65 79  96 31 51 46 01 51 94 38  |.v>.\.ey.1QF.Q.8|
-00000080  5b 51 d5 2d 1a 8b 19 14  03 03 00 01 01 16 03 03  |[Q.-............|
+00000030  6f 2c 9f 83 61 5c 5f 43  13 c2 76 91 3a c1 1a 8c  |o,..a\_C..v.:...|
+00000040  51 00 5c a0 93 a9 06 e2  0c b0 65 e3 8c 0d 4b 7b  |Q.\.......e...K{|
+00000050  7e 52 32 b8 3c b3 76 c5  bf 95 4d 29 71 50 81 e3  |~R2.<.v...M)qP..|
+00000060  2b 6f 4a 32 dc 33 94 15  c5 fe 38 b4 0a fc 03 38  |+oJ2.3....8....8|
+00000070  90 32 db c0 7f 99 62 a9  89 15 d0 f6 79 64 79 38  |.2....b.....ydy8|
+00000080  b0 e2 19 07 82 82 0a 14  03 03 00 01 01 16 03 03  |................|
 00000090  00 40 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |.@..............|
-000000a0  00 00 99 ca bd 2f c3 31  77 54 b5 70 de 96 e5 30  |...../.1wT.p...0|
-000000b0  ad 2e 6b 03 af f0 42 38  b6 70 dd 81 35 65 b6 fe  |..k...B8.p..5e..|
-000000c0  f6 d8 44 f3 c1 98 30 f4  21 16 06 57 b4 e8 c1 ec  |..D...0.!..W....|
-000000d0  bc 12 17 03 03 00 40 00  00 00 00 00 00 00 00 00  |......@.........|
-000000e0  00 00 00 00 00 00 00 f8  26 b5 28 2d 4d 0a 05 da  |........&.(-M...|
-000000f0  84 66 ae ac ee b1 fa 31  96 76 df bd 52 c6 d6 2c  |.f.....1.v..R..,|
-00000100  c5 39 c9 f9 eb c4 97 8f  d1 c2 a4 1f e9 28 3d 81  |.9...........(=.|
-00000110  64 7a 7d 41 f3 1d be 15  03 03 00 30 00 00 00 00  |dz}A.......0....|
-00000120  00 00 00 00 00 00 00 00  00 00 00 00 20 cc 54 9c  |............ .T.|
-00000130  9e 4a cc fc 9b 0d 35 59  cd 9b 49 74 1a aa fd f6  |.J....5Y..It....|
-00000140  4d dd 0e 9e c8 4f 3a 8b  a8 7a a6 d5              |M....O:..z..|
+000000a0  00 00 69 6f c8 63 ce 7b  d5 82 6e f8 5f 59 ab ad  |..io.c.{..n._Y..|
+000000b0  55 0c 76 8b 11 56 77 ea  33 20 fd 0b 33 9d 72 12  |U.v..Vw.3 ..3.r.|
+000000c0  85 fe 99 38 2a 70 49 fe  27 35 9d 43 5b 32 2b 77  |...8*pI.'5.C[2+w|
+000000d0  31 66 17 03 03 00 40 00  00 00 00 00 00 00 00 00  |1f....@.........|
+000000e0  00 00 00 00 00 00 00 05  36 d1 49 58 00 4d 5c bc  |........6.IX.M\.|
+000000f0  a8 c4 be 76 5d f7 cc 88  c7 5a 44 8c f6 d0 30 e6  |...v]....ZD...0.|
+00000100  87 03 84 77 60 6c 47 70  2a 80 51 38 a8 8a fb 9f  |...w`lGp*.Q8....|
+00000110  31 45 f0 ab c9 e5 94 15  03 03 00 30 00 00 00 00  |1E.........0....|
+00000120  00 00 00 00 00 00 00 00  00 00 00 00 19 f0 c7 ce  |................|
+00000130  92 87 25 dd 5b c3 68 3b  dd ec 5c 26 c6 90 36 31  |..%.[.h;..\&..61|
+00000140  a5 3c 9a 89 be 49 30 37  3b a5 5f 13              |.<...I07;._.|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-IssueTicketPreDisable b/libgo/go/crypto/tls/testdata/Server-TLSv12-IssueTicketPreDisable
index d1a3480..cc1b6b0 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-IssueTicketPreDisable
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-IssueTicketPreDisable
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 9b 01 00 00  97 03 03 b9 ed cc cc b2  |................|
-00000010  93 69 38 bf d0 24 20 b1  24 99 8a 4d b2 81 5d 58  |.i8..$ .$..M..]X|
-00000020  b7 a0 b1 a3 ef fd 21 01  75 01 b3 00 00 04 00 2f  |......!.u....../|
+00000000  16 03 01 00 9b 01 00 00  97 03 03 55 4e 24 f5 fd  |...........UN$..|
+00000010  2b 70 d1 b4 9c fd eb 53  1d 2f 7e f7 59 fe 20 c6  |+p.....S./~.Y. .|
+00000020  4f 47 72 0f 7a 01 71 48  8a 21 9a 00 00 04 00 2f  |OGr.z.qH.!...../|
 00000030  00 ff 01 00 00 6a 00 00  00 0e 00 0c 00 00 09 31  |.....j.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,83 +10,83 @@
 00000080  08 0b 08 04 08 05 08 06  04 01 05 01 06 01 03 03  |................|
 00000090  02 03 03 01 02 01 03 02  02 02 04 02 05 02 06 02  |................|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 35 02 00 00  31 03 03 00 00 00 00 00  |....5...1.......|
+00000000  16 03 03 00 3b 02 00 00  37 03 03 00 00 00 00 00  |....;...7.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  09 00 23 00 00 ff 01 00  01 00 16 03 03 02 59 0b  |..#...........Y.|
-00000040  00 02 55 00 02 52 00 02  4f 30 82 02 4b 30 82 01  |..U..R..O0..K0..|
-00000050  b4 a0 03 02 01 02 02 09  00 e8 f0 9d 3f e2 5b ea  |............?.[.|
-00000060  a6 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |.0...*.H........|
-00000070  30 1f 31 0b 30 09 06 03  55 04 0a 13 02 47 6f 31  |0.1.0...U....Go1|
-00000080  10 30 0e 06 03 55 04 03  13 07 47 6f 20 52 6f 6f  |.0...U....Go Roo|
-00000090  74 30 1e 17 0d 31 36 30  31 30 31 30 30 30 30 30  |t0...16010100000|
-000000a0  30 5a 17 0d 32 35 30 31  30 31 30 30 30 30 30 30  |0Z..250101000000|
-000000b0  5a 30 1a 31 0b 30 09 06  03 55 04 0a 13 02 47 6f  |Z0.1.0...U....Go|
-000000c0  31 0b 30 09 06 03 55 04  03 13 02 47 6f 30 81 9f  |1.0...U....Go0..|
-000000d0  30 0d 06 09 2a 86 48 86  f7 0d 01 01 01 05 00 03  |0...*.H.........|
-000000e0  81 8d 00 30 81 89 02 81  81 00 db 46 7d 93 2e 12  |...0.......F}...|
-000000f0  27 06 48 bc 06 28 21 ab  7e c4 b6 a2 5d fe 1e 52  |'.H..(!.~...]..R|
-00000100  45 88 7a 36 47 a5 08 0d  92 42 5b c2 81 c0 be 97  |E.z6G....B[.....|
-00000110  79 98 40 fb 4f 6d 14 fd  2b 13 8b c2 a5 2e 67 d8  |y.@.Om..+.....g.|
-00000120  d4 09 9e d6 22 38 b7 4a  0b 74 73 2b c2 34 f1 d1  |...."8.J.ts+.4..|
-00000130  93 e5 96 d9 74 7b f3 58  9f 6c 61 3c c0 b0 41 d4  |....t{.X.la<..A.|
-00000140  d9 2b 2b 24 23 77 5b 1c  3b bd 75 5d ce 20 54 cf  |.++$#w[.;.u]. T.|
-00000150  a1 63 87 1d 1e 24 c4 f3  1d 1a 50 8b aa b6 14 43  |.c...$....P....C|
-00000160  ed 97 a7 75 62 f4 14 c8  52 d7 02 03 01 00 01 a3  |...ub...R.......|
-00000170  81 93 30 81 90 30 0e 06  03 55 1d 0f 01 01 ff 04  |..0..0...U......|
-00000180  04 03 02 05 a0 30 1d 06  03 55 1d 25 04 16 30 14  |.....0...U.%..0.|
-00000190  06 08 2b 06 01 05 05 07  03 01 06 08 2b 06 01 05  |..+.........+...|
-000001a0  05 07 03 02 30 0c 06 03  55 1d 13 01 01 ff 04 02  |....0...U.......|
-000001b0  30 00 30 19 06 03 55 1d  0e 04 12 04 10 9f 91 16  |0.0...U.........|
-000001c0  1f 43 43 3e 49 a6 de 6d  b6 80 d7 9f 60 30 1b 06  |.CC>I..m....`0..|
-000001d0  03 55 1d 23 04 14 30 12  80 10 48 13 49 4d 13 7e  |.U.#..0...H.IM.~|
-000001e0  16 31 bb a3 01 d5 ac ab  6e 7b 30 19 06 03 55 1d  |.1......n{0...U.|
-000001f0  11 04 12 30 10 82 0e 65  78 61 6d 70 6c 65 2e 67  |...0...example.g|
-00000200  6f 6c 61 6e 67 30 0d 06  09 2a 86 48 86 f7 0d 01  |olang0...*.H....|
-00000210  01 0b 05 00 03 81 81 00  9d 30 cc 40 2b 5b 50 a0  |.........0.@+[P.|
-00000220  61 cb ba e5 53 58 e1 ed  83 28 a9 58 1a a9 38 a4  |a...SX...(.X..8.|
-00000230  95 a1 ac 31 5a 1a 84 66  3d 43 d3 2d d9 0b f2 97  |...1Z..f=C.-....|
-00000240  df d3 20 64 38 92 24 3a  00 bc cf 9c 7d b7 40 20  |.. d8.$:....}.@ |
-00000250  01 5f aa d3 16 61 09 a2  76 fd 13 c3 cc e1 0c 5c  |._...a..v......\|
-00000260  ee b1 87 82 f1 6c 04 ed  73 bb b3 43 77 8d 0c 1c  |.....l..s..Cw...|
-00000270  f1 0f a1 d8 40 83 61 c9  4c 72 2b 9d ae db 46 06  |....@.a.Lr+...F.|
-00000280  06 4d f4 c1 b3 3e c0 d1  bd 42 d4 db fe 3d 13 60  |.M...>...B...=.`|
-00000290  84 5c 21 d3 3b e9 fa e7  16 03 03 00 04 0e 00 00  |.\!.;...........|
-000002a0  00                                                |.|
+00000030  0f 00 23 00 00 ff 01 00  01 00 00 0b 00 02 01 00  |..#.............|
+00000040  16 03 03 02 59 0b 00 02  55 00 02 52 00 02 4f 30  |....Y...U..R..O0|
+00000050  82 02 4b 30 82 01 b4 a0  03 02 01 02 02 09 00 e8  |..K0............|
+00000060  f0 9d 3f e2 5b ea a6 30  0d 06 09 2a 86 48 86 f7  |..?.[..0...*.H..|
+00000070  0d 01 01 0b 05 00 30 1f  31 0b 30 09 06 03 55 04  |......0.1.0...U.|
+00000080  0a 13 02 47 6f 31 10 30  0e 06 03 55 04 03 13 07  |...Go1.0...U....|
+00000090  47 6f 20 52 6f 6f 74 30  1e 17 0d 31 36 30 31 30  |Go Root0...16010|
+000000a0  31 30 30 30 30 30 30 5a  17 0d 32 35 30 31 30 31  |1000000Z..250101|
+000000b0  30 30 30 30 30 30 5a 30  1a 31 0b 30 09 06 03 55  |000000Z0.1.0...U|
+000000c0  04 0a 13 02 47 6f 31 0b  30 09 06 03 55 04 03 13  |....Go1.0...U...|
+000000d0  02 47 6f 30 81 9f 30 0d  06 09 2a 86 48 86 f7 0d  |.Go0..0...*.H...|
+000000e0  01 01 01 05 00 03 81 8d  00 30 81 89 02 81 81 00  |.........0......|
+000000f0  db 46 7d 93 2e 12 27 06  48 bc 06 28 21 ab 7e c4  |.F}...'.H..(!.~.|
+00000100  b6 a2 5d fe 1e 52 45 88  7a 36 47 a5 08 0d 92 42  |..]..RE.z6G....B|
+00000110  5b c2 81 c0 be 97 79 98  40 fb 4f 6d 14 fd 2b 13  |[.....y.@.Om..+.|
+00000120  8b c2 a5 2e 67 d8 d4 09  9e d6 22 38 b7 4a 0b 74  |....g....."8.J.t|
+00000130  73 2b c2 34 f1 d1 93 e5  96 d9 74 7b f3 58 9f 6c  |s+.4......t{.X.l|
+00000140  61 3c c0 b0 41 d4 d9 2b  2b 24 23 77 5b 1c 3b bd  |a<..A..++$#w[.;.|
+00000150  75 5d ce 20 54 cf a1 63  87 1d 1e 24 c4 f3 1d 1a  |u]. T..c...$....|
+00000160  50 8b aa b6 14 43 ed 97  a7 75 62 f4 14 c8 52 d7  |P....C...ub...R.|
+00000170  02 03 01 00 01 a3 81 93  30 81 90 30 0e 06 03 55  |........0..0...U|
+00000180  1d 0f 01 01 ff 04 04 03  02 05 a0 30 1d 06 03 55  |...........0...U|
+00000190  1d 25 04 16 30 14 06 08  2b 06 01 05 05 07 03 01  |.%..0...+.......|
+000001a0  06 08 2b 06 01 05 05 07  03 02 30 0c 06 03 55 1d  |..+.......0...U.|
+000001b0  13 01 01 ff 04 02 30 00  30 19 06 03 55 1d 0e 04  |......0.0...U...|
+000001c0  12 04 10 9f 91 16 1f 43  43 3e 49 a6 de 6d b6 80  |.......CC>I..m..|
+000001d0  d7 9f 60 30 1b 06 03 55  1d 23 04 14 30 12 80 10  |..`0...U.#..0...|
+000001e0  48 13 49 4d 13 7e 16 31  bb a3 01 d5 ac ab 6e 7b  |H.IM.~.1......n{|
+000001f0  30 19 06 03 55 1d 11 04  12 30 10 82 0e 65 78 61  |0...U....0...exa|
+00000200  6d 70 6c 65 2e 67 6f 6c  61 6e 67 30 0d 06 09 2a  |mple.golang0...*|
+00000210  86 48 86 f7 0d 01 01 0b  05 00 03 81 81 00 9d 30  |.H.............0|
+00000220  cc 40 2b 5b 50 a0 61 cb  ba e5 53 58 e1 ed 83 28  |.@+[P.a...SX...(|
+00000230  a9 58 1a a9 38 a4 95 a1  ac 31 5a 1a 84 66 3d 43  |.X..8....1Z..f=C|
+00000240  d3 2d d9 0b f2 97 df d3  20 64 38 92 24 3a 00 bc  |.-...... d8.$:..|
+00000250  cf 9c 7d b7 40 20 01 5f  aa d3 16 61 09 a2 76 fd  |..}.@ ._...a..v.|
+00000260  13 c3 cc e1 0c 5c ee b1  87 82 f1 6c 04 ed 73 bb  |.....\.....l..s.|
+00000270  b3 43 77 8d 0c 1c f1 0f  a1 d8 40 83 61 c9 4c 72  |.Cw.......@.a.Lr|
+00000280  2b 9d ae db 46 06 06 4d  f4 c1 b3 3e c0 d1 bd 42  |+...F..M...>...B|
+00000290  d4 db fe 3d 13 60 84 5c  21 d3 3b e9 fa e7 16 03  |...=.`.\!.;.....|
+000002a0  03 00 04 0e 00 00 00                              |.......|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 86 10 00 00  82 00 80 35 f0 ea c2 96  |...........5....|
-00000010  09 7c b6 2c 8a 53 e4 52  0f 70 ba 1d 61 cf 8f 2d  |.|.,.S.R.p..a..-|
-00000020  8a b8 c7 0f 3b 50 41 67  60 f1 e6 5c 72 4a 48 69  |....;PAg`..\rJHi|
-00000030  a5 43 c8 ab cb 3a 33 ab  fd 56 f1 53 1f 18 85 c0  |.C...:3..V.S....|
-00000040  c0 3a 2d 97 65 e1 00 89  c0 9f 16 42 c7 ed 74 17  |.:-.e......B..t.|
-00000050  f4 35 e9 6f c5 9f e2 68  70 b1 7d fc 6e 5b a5 5d  |.5.o...hp.}.n[.]|
-00000060  d0 16 28 c7 65 8a 7a 50  e4 48 d0 73 4a 94 59 cf  |..(.e.zP.H.sJ.Y.|
-00000070  ad 3f 44 78 3d 6b 90 53  2e 28 a2 9b c5 85 ea 51  |.?Dx=k.S.(.....Q|
-00000080  58 2c 6d 40 c2 15 57 ad  76 6d 86 14 03 03 00 01  |X,m@..W.vm......|
-00000090  01 16 03 03 00 40 84 60  b6 51 55 96 d1 32 48 dd  |.....@.`.QU..2H.|
-000000a0  d3 31 5e 18 3a fc 94 21  52 81 8f 48 5a a9 f3 71  |.1^.:..!R..HZ..q|
-000000b0  e1 0e d6 1c 20 68 a3 94  c3 4c 84 b3 08 85 96 5c  |.... h...L.....\|
-000000c0  16 f3 1e 5d cc 6b 2b 42  3f f8 39 64 65 33 9b 18  |...].k+B?.9de3..|
-000000d0  ee 67 13 ab 57 52                                 |.g..WR|
+00000000  16 03 03 00 86 10 00 00  82 00 80 29 31 85 e2 ce  |...........)1...|
+00000010  42 63 7f 16 3a 0b 67 19  64 da bb 7a bc fe c7 a9  |Bc..:.g.d..z....|
+00000020  fb f1 d0 c1 7e 3d 2e 69  f8 97 43 7e 73 8a eb 9a  |....~=.i..C~s...|
+00000030  e4 f4 d0 e8 93 47 ec c1  89 a0 d3 93 65 47 1c 33  |.....G......eG.3|
+00000040  75 af 90 07 bb 46 27 09  c6 0c 4f 43 10 87 c9 a6  |u....F'...OC....|
+00000050  da 58 02 a7 61 4b 67 40  05 72 9b 07 aa 9b 04 18  |.X..aKg@.r......|
+00000060  6a 35 d1 54 f8 fc 08 f5  9f 49 8d aa aa 4c 2c bf  |j5.T.....I...L,.|
+00000070  55 85 ed 6b ae 7e cd 77  a2 9b e3 a7 03 8d 9e d9  |U..k.~.w........|
+00000080  12 12 ce 1c c4 ba 10 f3  d5 f4 c2 14 03 03 00 01  |................|
+00000090  01 16 03 03 00 40 2c 57  5d 8b 73 4f 31 ed 16 e5  |.....@,W].sO1...|
+000000a0  17 bd 08 a9 26 95 51 0d  f6 0c 82 af f2 26 9e 5e  |....&.Q......&.^|
+000000b0  31 71 e5 7c dc 41 62 10  da d5 20 f1 dc 00 ea 25  |1q.|.Ab... ....%|
+000000c0  5a 4b 15 e1 ba 46 c1 5f  64 a6 59 58 55 2a 01 41  |ZK...F._d.YXU*.A|
+000000d0  3e 6b 22 b8 79 27                                 |>k".y'|
 >>> Flow 4 (server to client)
 00000000  16 03 03 00 82 04 00 00  7e 00 00 00 00 00 78 50  |........~.....xP|
 00000010  46 ad c1 db a8 38 86 7b  2b bb fd d0 c3 42 3e 00  |F....8.{+....B>.|
 00000020  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 94  |................|
-00000030  6f 2c 9f 83 61 70 4f 8e  34 f4 65 e4 64 ba af 8d  |o,..apO.4.e.d...|
-00000040  55 d8 8a c4 90 a4 94 d1  84 44 51 72 f0 79 b3 2b  |U........DQr.y.+|
-00000050  c3 49 48 58 e7 66 8c 3d  60 dd 65 ba 93 0a f1 45  |.IHX.f.=`.e....E|
-00000060  28 83 56 19 28 33 94 dd  d4 29 db f0 80 d1 b2 0a  |(.V.(3...)......|
-00000070  ef 69 03 b5 fa 19 82 a9  0e 42 b0 bb c2 b5 c7 b5  |.i.......B......|
-00000080  92 1f e6 3b 38 e3 85 14  03 03 00 01 01 16 03 03  |...;8...........|
+00000030  6f 2c 9f 83 61 31 33 93  70 cd 6a 19 a2 67 e8 7d  |o,..a13.p.j..g.}|
+00000040  cb a4 dc bb 80 d9 23 20  05 4d 53 1f b6 9f 48 01  |......# .MS...H.|
+00000050  e4 84 75 10 25 f9 ed 98  bb 39 7e fc 8b 16 d8 bc  |..u.%....9~.....|
+00000060  c7 e9 88 e8 1c 33 94 10  13 6b d4 3d fa d7 73 b2  |.....3...k.=..s.|
+00000070  d4 ea 89 58 ed 38 f8 f3  6a e0 5f 1e f7 49 ed f7  |...X.8..j._..I..|
+00000080  5f 64 39 6b b5 6c fb 14  03 03 00 01 01 16 03 03  |_d9k.l..........|
 00000090  00 40 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |.@..............|
-000000a0  00 00 a3 42 c4 79 0d 44  92 ab af f9 a0 f2 3f 10  |...B.y.D......?.|
-000000b0  f6 51 24 66 e4 e1 87 b1  5b 21 4e 0d 77 12 93 b8  |.Q$f....[!N.w...|
-000000c0  19 21 2e c5 0f 29 3c 5a  3b dd 8f 96 41 7b 31 9e  |.!...)<Z;...A{1.|
-000000d0  d9 d3 17 03 03 00 40 00  00 00 00 00 00 00 00 00  |......@.........|
-000000e0  00 00 00 00 00 00 00 9f  33 45 e6 aa 63 e0 cd 15  |........3E..c...|
-000000f0  f4 d4 f7 16 a4 dd ba d8  f0 bb 4e 05 ee c5 31 99  |..........N...1.|
-00000100  23 e0 14 f2 6d a1 86 4d  86 40 33 cc db bd cb b2  |#...m..M.@3.....|
-00000110  11 6c 8a 67 c9 0b 57 15  03 03 00 30 00 00 00 00  |.l.g..W....0....|
-00000120  00 00 00 00 00 00 00 00  00 00 00 00 93 12 a5 b3  |................|
-00000130  57 9b df c1 76 3e 81 80  cd 4b 79 d0 a6 69 5c 50  |W...v>...Ky..i\P|
-00000140  24 dc 81 e0 28 97 53 e4  a1 36 ef bc              |$...(.S..6..|
+000000a0  00 00 fa f3 aa 48 54 5f  5b 88 69 fb 01 75 2a 90  |.....HT_[.i..u*.|
+000000b0  49 46 7c 6a 3a aa 72 4e  35 db 8f 38 a3 4d 05 53  |IF|j:.rN5..8.M.S|
+000000c0  38 93 63 ae 0d b9 e0 b4  81 2e ee 40 d5 2b 58 2a  |8.c........@.+X*|
+000000d0  18 9b 17 03 03 00 40 00  00 00 00 00 00 00 00 00  |......@.........|
+000000e0  00 00 00 00 00 00 00 3c  84 3f 45 03 b0 60 ed 8f  |.......<.?E..`..|
+000000f0  d2 e5 10 98 03 1a 00 8a  aa 19 d0 e9 03 fb 42 fc  |..............B.|
+00000100  cd 4d 13 3e 7d 39 0b 5f  cf 2d b7 87 3a bf 43 d4  |.M.>}9._.-..:.C.|
+00000110  ac 71 68 29 bf f8 ac 15  03 03 00 30 00 00 00 00  |.qh).......0....|
+00000120  00 00 00 00 00 00 00 00  00 00 00 00 81 49 eb 3b  |.............I.;|
+00000130  28 e7 88 94 8b 6a cc 67  4d c4 03 66 80 af d7 c2  |(....j.gM..f....|
+00000140  07 37 36 3b f0 a4 5d 16  2b 5f 5b 27              |.76;..].+_['|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-P256 b/libgo/go/crypto/tls/testdata/Server-TLSv12-P256
index 4e302b3..58b9bed 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-P256
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-P256
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 8f 01 00 00  8b 03 03 b1 a0 04 30 1e  |..............0.|
-00000010  a1 09 cb 31 c4 1a 15 e7  a6 06 b5 fb 51 da d6 01  |...1........Q...|
-00000020  dc c0 cc 17 85 e5 c4 c6  b1 da be 00 00 04 c0 2f  |.............../|
+00000000  16 03 01 00 8f 01 00 00  8b 03 03 49 de 51 77 8e  |...........I.Qw.|
+00000010  58 03 e9 25 0b 9a 88 ef  35 2d 35 a8 30 29 22 61  |X..%....5-5.0)"a|
+00000020  ae b4 af 8a a1 2c 45 59  40 5f aa 00 00 04 c0 2f  |.....,EY@_...../|
 00000030  00 ff 01 00 00 5e 00 00  00 0e 00 0c 00 00 09 31  |.....^.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 04 00 02 00 17  00 16 00 00 00 17 00 00  |................|
@@ -10,76 +10,77 @@
 00000080  06 01 03 03 02 03 03 01  02 01 03 02 02 02 04 02  |................|
 00000090  05 02 06 02                                       |....|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  cd 0c 00 00 c9 03 00 17  |;...............|
-000002a0  41 04 1e 18 37 ef 0d 19  51 88 35 75 71 b5 e5 54  |A...7...Q.5uq..T|
-000002b0  5b 12 2e 8f 09 67 fd a7  24 20 3e b2 56 1c ce 97  |[....g..$ >.V...|
-000002c0  28 5e f8 2b 2d 4f 9e f1  07 9f 6c 4b 5b 83 56 e2  |(^.+-O....lK[.V.|
-000002d0  32 42 e9 58 b6 d7 49 a6  b5 68 1a 41 03 56 6b dc  |2B.X..I..h.A.Vk.|
-000002e0  5a 89 04 01 00 80 bb 79  4d c9 d6 77 df 13 46 e6  |Z......yM..w..F.|
-000002f0  82 30 7a 03 2e 58 a8 bf  2a 53 c4 58 0a 9a 9a 0f  |.0z..X..*S.X....|
-00000300  72 51 a9 91 5b f7 88 f1  de 28 1d 56 79 2c da 89  |rQ..[....(.Vy,..|
-00000310  a4 de 25 65 20 f7 a1 a4  b1 ff 3c 5a cd 67 24 9b  |..%e .....<Z.g$.|
-00000320  44 fc a4 27 07 1b 75 88  3c 75 78 c7 b9 ec 77 4a  |D..'..u.<ux...wJ|
-00000330  a3 56 c2 e3 e9 e0 51 92  07 7f ac 0c 09 88 11 21  |.V....Q........!|
-00000340  11 40 dd 9f 5b 21 2e de  f9 be 02 de c6 9d ea 06  |.@..[!..........|
-00000350  65 d6 b0 2d 1b 41 21 e8  2d 77 e2 14 96 fc 8f 39  |e..-.A!.-w.....9|
-00000360  6c 0a f8 07 8c d9 16 03  03 00 04 0e 00 00 00     |l..............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 cd 0c  |.`.\!.;.........|
+000002a0  00 00 c9 03 00 17 41 04  1e 18 37 ef 0d 19 51 88  |......A...7...Q.|
+000002b0  35 75 71 b5 e5 54 5b 12  2e 8f 09 67 fd a7 24 20  |5uq..T[....g..$ |
+000002c0  3e b2 56 1c ce 97 28 5e  f8 2b 2d 4f 9e f1 07 9f  |>.V...(^.+-O....|
+000002d0  6c 4b 5b 83 56 e2 32 42  e9 58 b6 d7 49 a6 b5 68  |lK[.V.2B.X..I..h|
+000002e0  1a 41 03 56 6b dc 5a 89  08 04 00 80 7b bd 89 a1  |.A.Vk.Z.....{...|
+000002f0  d8 9d cf e4 75 ac 15 60  a9 49 0c c7 68 61 4e e4  |....u..`.I..haN.|
+00000300  2b 51 37 5a 65 38 a4 52  6a d0 4f 8b 76 93 a4 7c  |+Q7Ze8.Rj.O.v..||
+00000310  ac 30 6b 89 f1 c7 88 8f  f3 5c c7 e9 d6 7c 33 94  |.0k......\...|3.|
+00000320  f7 fc f8 69 35 f3 f7 e0  ea fc 51 5c b2 e2 dc 9e  |...i5.....Q\....|
+00000330  57 03 af e6 19 0d 0d e4  25 b6 52 19 12 ad 35 fc  |W.......%.R...5.|
+00000340  7f c3 6a 1f ed 06 82 34  81 13 d7 c1 67 a9 18 88  |..j....4....g...|
+00000350  2f bb 00 54 5d d9 01 16  29 dd 03 3c 69 f7 46 52  |/..T]...)..<i.FR|
+00000360  6a 95 51 81 75 68 fa 15  09 11 38 94 16 03 03 00  |j.Q.uh....8.....|
+00000370  04 0e 00 00 00                                    |.....|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 46 10 00 00  42 41 04 1b 28 eb 97 c5  |....F...BA..(...|
-00000010  63 cc e1 64 31 f9 b3 5c  61 d8 d9 28 f9 1e 9a 4b  |c..d1..\a..(...K|
-00000020  09 2a 5a b9 64 42 15 d3  06 80 64 67 93 63 e2 c6  |.*Z.dB....dg.c..|
-00000030  51 05 3c 8b 32 41 c2 a0  5a db 73 ba 77 86 7f 1b  |Q.<.2A..Z.s.w...|
-00000040  2e b4 33 9c 20 0a 40 3a  c6 90 f1 14 03 03 00 01  |..3. .@:........|
-00000050  01 16 03 03 00 28 56 75  52 fe f7 13 79 b6 c6 ba  |.....(VuR...y...|
-00000060  f1 6a 6d f2 3d 2c 8c c2  70 3e 19 ba 32 34 88 02  |.jm.=,..p>..24..|
-00000070  73 d7 d5 db b9 52 21 32  34 fb 7e e8 17 49        |s....R!24.~..I|
+00000000  16 03 03 00 46 10 00 00  42 41 04 a6 c3 8d d1 32  |....F...BA.....2|
+00000010  8e b4 ac 27 75 4a 57 26  7f 6a 52 a7 82 ee c2 b1  |...'uJW&.jR.....|
+00000020  a3 68 0a 8d 09 ff 82 61  57 f3 32 5e ec 1a 2f 20  |.h.....aW.2^../ |
+00000030  8c c1 d4 cf 27 7b f0 1d  f9 5d f6 24 80 6a 45 d2  |....'{...].$.jE.|
+00000040  97 cf f1 5d a2 e3 b0 15  7d e6 a4 14 03 03 00 01  |...]....}.......|
+00000050  01 16 03 03 00 28 21 36  fe 82 d2 4a b4 da f8 14  |.....(!6...J....|
+00000060  d6 d6 8c be 56 1f ca 82  7f 20 bb 01 be fb 2a 0d  |....V.... ....*.|
+00000070  a8 31 ee 79 f7 8a 8b 4a  1b a7 66 3a 89 67        |.1.y...J..f:.g|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 28 00 00 00 00 00  |..........(.....|
-00000010  00 00 00 41 e9 67 42 6b  79 56 59 80 41 c2 3a b9  |...A.gBkyVY.A.:.|
-00000020  b2 3a 06 0e 31 76 18 ba  86 a4 2d 1a 71 19 f3 f1  |.:..1v....-.q...|
-00000030  a3 bc b3 17 03 03 00 25  00 00 00 00 00 00 00 01  |.......%........|
-00000040  57 ee 6f 74 4b 56 28 ca  71 34 c0 85 0e 26 db 9c  |W.otKV(.q4...&..|
-00000050  bb 8f 3c 3f 02 a3 d4 07  61 6e 20 93 5e 15 03 03  |..<?....an .^...|
-00000060  00 1a 00 00 00 00 00 00  00 02 6e 3c 15 67 e9 53  |..........n<.g.S|
-00000070  1d 86 d8 3a ea 6b ac fc  42 bb db 8e              |...:.k..B...|
+00000010  00 00 00 00 0a 97 89 c3  74 09 63 25 2a fc e1 29  |........t.c%*..)|
+00000020  18 b1 bc d6 75 2e 3b 2a  fb 90 17 b9 b8 ea e2 c4  |....u.;*........|
+00000030  29 94 16 17 03 03 00 25  00 00 00 00 00 00 00 01  |)......%........|
+00000040  8c 30 76 b7 fd b1 96 0b  2a 8f f3 e1 b3 38 16 15  |.0v.....*....8..|
+00000050  10 3d 32 ee 29 b5 12 cb  cb cf 98 a3 c5 15 03 03  |.=2.)...........|
+00000060  00 1a 00 00 00 00 00 00  00 02 9e 4a 55 8e 91 ff  |...........JU...|
+00000070  13 0b 56 be 3c 5d b8 26  42 f1 c8 28              |..V.<].&B..(|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-3DES b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-3DES
index 7bff8ec..17a5ad0 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-3DES
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-3DES
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 97 01 00 00  93 03 03 ed c3 64 89 19  |.............d..|
-00000010  3b fd 11 f4 d8 c9 2a d5  a8 8b 18 b5 92 cb ff c1  |;.....*.........|
-00000020  10 9a b1 a7 e4 d5 bc 78  39 29 30 00 00 04 00 0a  |.......x9)0.....|
+00000000  16 03 01 00 97 01 00 00  93 03 03 e2 8f 43 82 4c  |.............C.L|
+00000010  13 33 88 d2 53 5d b6 02  d2 b6 b2 a1 11 f0 30 14  |.3..S]........0.|
+00000020  41 1e 8c 79 85 38 75 cd  e8 a6 a7 00 00 04 00 0a  |A..y.8u.........|
 00000030  00 ff 01 00 00 66 00 00  00 0e 00 0c 00 00 09 31  |.....f.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,70 +10,71 @@
 00000080  08 05 08 06 04 01 05 01  06 01 03 03 02 03 03 01  |................|
 00000090  02 01 03 02 02 02 04 02  05 02 06 02              |............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 0a 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 86 10 00 00  82 00 80 a3 a7 b7 b2 3e  |...............>|
-00000010  ee 37 62 8e 5b b3 d5 2e  e2 0e b9 24 70 95 4c 4c  |.7b.[......$p.LL|
-00000020  52 e5 9f a3 e2 79 7f a1  dc 93 1f 89 2e f8 a2 8e  |R....y..........|
-00000030  7b d8 82 6c 89 57 64 44  e9 61 66 aa 8d 42 ff d1  |{..l.WdD.af..B..|
-00000040  7f 62 21 55 78 e9 da 87  18 d5 51 dc 91 39 6b b9  |.b!Ux.....Q..9k.|
-00000050  8f ec 76 57 f7 03 62 fa  54 36 0c 18 ad 7c 1c 5d  |..vW..b.T6...|.]|
-00000060  ce fd b4 97 c3 98 15 fc  b5 e5 55 6b aa d5 d5 d4  |..........Uk....|
-00000070  17 9c a7 55 ee 8d d1 85  2e 92 10 32 67 72 d5 27  |...U.......2gr.'|
-00000080  0d aa b3 a9 5a ec d3 8c  df d4 7f 14 03 03 00 01  |....Z...........|
-00000090  01 16 03 03 00 30 8a 3c  9c 7d dd 50 68 ff 79 dc  |.....0.<.}.Ph.y.|
-000000a0  f4 b4 a7 73 8e de 93 01  85 a4 0c 9c cb 9a 2d 4d  |...s..........-M|
-000000b0  34 95 63 d7 73 9f c5 89  e0 81 8f a2 bd c1 3b e4  |4.c.s.........;.|
-000000c0  5a fe 5a ef 6a 75                                 |Z.Z.ju|
+00000000  16 03 03 00 86 10 00 00  82 00 80 57 ce 41 c0 4d  |...........W.A.M|
+00000010  b1 69 27 6e cb 92 a5 71  52 85 e7 a8 69 b0 31 d1  |.i'n...qR...i.1.|
+00000020  0a b0 3d a6 9d ab 04 e8  a2 4c d8 67 95 97 da 63  |..=......L.g...c|
+00000030  f7 0b 6e 62 29 5b 8b cf  77 f1 80 a5 1f 67 08 71  |..nb)[..w....g.q|
+00000040  50 c3 a9 90 ea b8 11 3d  5d c9 f5 1c 37 fa 67 b1  |P......=]...7.g.|
+00000050  64 b0 04 3e c1 0d db 77  fe b9 a0 ea f2 0f 1d af  |d..>...w........|
+00000060  9a 77 b3 96 4f 3f 3c 52  a7 ed c4 3f 48 ef ff f8  |.w..O?<R...?H...|
+00000070  38 f6 34 60 5a 29 12 37  85 23 1c 39 8e 1a a7 2f  |8.4`Z).7.#.9.../|
+00000080  68 39 1f 37 ed 08 a8 a5  b2 c1 f0 14 03 03 00 01  |h9.7............|
+00000090  01 16 03 03 00 30 8d 64  b1 cb 97 76 8a 78 08 d1  |.....0.d...v.x..|
+000000a0  c0 af 60 9c 0d f0 ae 41  93 f4 97 2b 46 f7 65 52  |..`....A...+F.eR|
+000000b0  55 a7 90 4a 83 47 cc e4  51 29 0d 6e 0b 42 52 c2  |U..J.G..Q).n.BR.|
+000000c0  bf 13 b8 01 72 d3                                 |....r.|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 30 00 00 00 00 00  |..........0.....|
-00000010  00 00 00 f1 00 85 78 65  64 6e 44 50 3e 34 30 87  |......xednDP>40.|
-00000020  b8 c2 b4 ed 76 e2 65 0a  4c 21 68 46 ca ae 97 ea  |....v.e.L!hF....|
-00000030  a2 46 38 b3 65 b8 63 45  8f aa 4c 17 03 03 00 30  |.F8.e.cE..L....0|
-00000040  00 00 00 00 00 00 00 00  fd 9f bb a9 e3 72 fd 5f  |.............r._|
-00000050  5b b7 2d 34 e5 4c 19 f4  ef 1c ce 71 0f d3 0d a6  |[.-4.L.....q....|
-00000060  5f f2 ca b4 3b f8 eb c7  20 85 e7 92 41 8c c8 08  |_...;... ...A...|
-00000070  15 03 03 00 20 00 00 00  00 00 00 00 00 3b b8 8c  |.... ........;..|
-00000080  09 40 aa 11 20 a9 ee f7  e4 bb 80 a2 e6 5d e5 04  |.@.. ........]..|
-00000090  98 65 e8 bd 85                                    |.e...|
+00000010  00 00 00 0d 0f 3c 6a 28  f0 97 90 1a c3 7e c8 63  |.....<j(.....~.c|
+00000020  15 75 1b 71 c8 bb 7d 83  b0 9b a6 73 3d 3d 51 7a  |.u.q..}....s==Qz|
+00000030  52 5b e4 33 16 93 40 23  43 7c a2 17 03 03 00 30  |R[.3..@#C|.....0|
+00000040  00 00 00 00 00 00 00 00  be db 1d 03 aa 15 53 49  |..............SI|
+00000050  a3 57 00 24 75 3a b1 48  71 ec d9 7d e1 40 5c dc  |.W.$u:.Hq..}.@\.|
+00000060  fd f5 33 6f 6b c7 3e 9e  2e 05 af 1b 12 73 75 8c  |..3ok.>......su.|
+00000070  15 03 03 00 20 00 00 00  00 00 00 00 00 5c 30 63  |.... ........\0c|
+00000080  23 55 26 ee 8d 81 9a 2e  b4 e7 38 6b 04 e7 42 43  |#U&.......8k..BC|
+00000090  50 de 1e 40 2d                                    |P..@-|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES
index 25f1269..0196e21 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 97 01 00 00  93 03 03 1b 05 dc 80 93  |................|
-00000010  90 62 51 a6 ce 10 03 8e  f1 02 71 53 b0 9f 80 96  |.bQ.......qS....|
-00000020  a0 48 c9 6f 1d df d9 cd  82 43 48 00 00 04 00 2f  |.H.o.....CH..../|
+00000000  16 03 01 00 97 01 00 00  93 03 03 dd 28 eb 68 4a  |............(.hJ|
+00000010  8a 71 d2 98 d0 2d 21 c7  e9 19 19 de c8 13 0b 67  |.q...-!........g|
+00000020  f4 ff 4c d0 37 f5 72 9f  2d fb b3 00 00 04 00 2f  |..L.7.r.-....../|
 00000030  00 ff 01 00 00 66 00 00  00 0e 00 0c 00 00 09 31  |.....f.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,74 +10,75 @@
 00000080  08 05 08 06 04 01 05 01  06 01 03 03 02 03 03 01  |................|
 00000090  02 01 03 02 02 02 04 02  05 02 06 02              |............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 86 10 00 00  82 00 80 c7 bb d2 ee 1a  |................|
-00000010  38 b1 7b 2f ad ec e6 63  d3 11 f9 69 b6 7e b9 58  |8.{/...c...i.~.X|
-00000020  79 37 c9 6e e5 6b 1e ce  e5 b7 1f 69 ec 2c 71 94  |y7.n.k.....i.,q.|
-00000030  f7 27 16 66 14 24 bd bb  ca ac 80 20 68 46 6e b8  |.'.f.$..... hFn.|
-00000040  3e f4 82 07 0a b7 0c 74  a5 66 1a 86 48 52 6e 80  |>......t.f..HRn.|
-00000050  a1 88 a3 12 8c c9 ef fc  5c 90 a8 f5 2f 0a 69 ba  |........\.../.i.|
-00000060  ce 73 48 ca 25 ea be 3c  9f 1b b6 1c e9 d7 1d bf  |.sH.%..<........|
-00000070  38 0d 6f a1 ed c0 22 16  40 51 2e c3 78 5b 69 8a  |8.o...".@Q..x[i.|
-00000080  91 30 5b 15 b1 a5 c5 ea  5f 34 38 14 03 03 00 01  |.0[....._48.....|
-00000090  01 16 03 03 00 40 78 f5  31 97 86 f4 48 5c 74 8f  |.....@x.1...H\t.|
-000000a0  ac b9 49 42 cb 83 e6 d9  bc a4 6f cc 3f f3 54 66  |..IB......o.?.Tf|
-000000b0  93 01 2c 1a e3 b4 08 09  f8 41 d4 fe 2d fa ab a9  |..,......A..-...|
-000000c0  f1 47 39 13 82 11 9e 7f  04 78 08 df 13 74 97 6c  |.G9......x...t.l|
-000000d0  ba ac a8 26 90 2e                                 |...&..|
+00000000  16 03 03 00 86 10 00 00  82 00 80 c0 37 ef f3 d9  |............7...|
+00000010  6b 7b 3f c4 9f 46 d2 6b  8f 7f 8d ce 89 cf 8e 2b  |k{?..F.k.......+|
+00000020  1f 0d 86 f9 90 5a 23 28  6c d3 14 ce 2a 0b f1 0e  |.....Z#(l...*...|
+00000030  96 1c 11 7d c0 b8 fb 4b  2e cb 07 1c fe b9 e1 62  |...}...K.......b|
+00000040  2c 38 1c 46 21 74 23 a9  f2 0b 15 36 ef 88 32 e8  |,8.F!t#....6..2.|
+00000050  28 66 8e ab 14 be e9 02  04 9d 92 99 cc 6e 28 d0  |(f...........n(.|
+00000060  f9 3d dc 61 7f f7 17 59  ab 1c 86 94 9a 28 7b 46  |.=.a...Y.....({F|
+00000070  3c 36 ff d3 26 3c ad 2d  33 ef 99 83 09 a5 a8 2f  |<6..&<.-3....../|
+00000080  b3 a3 74 7f 49 a3 f1 47  7d 8c 12 14 03 03 00 01  |..t.I..G}.......|
+00000090  01 16 03 03 00 40 32 68  cb ea 32 cb f2 7a 0e 4b  |.....@2h..2..z.K|
+000000a0  63 72 96 93 e8 2d 5b 22  a6 3a 05 9d 60 50 e5 d0  |cr...-[".:..`P..|
+000000b0  f3 f8 14 ed 81 fe 17 a0  ee 3f 7b aa ca dc 06 bc  |.........?{.....|
+000000c0  28 90 73 33 84 0c 92 39  b7 cb da 06 08 05 0b 03  |(.s3...9........|
+000000d0  86 be cc 70 0e c2                                 |...p..|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 53 48 ab 5a 17  |...........SH.Z.|
-00000020  07 e4 14 04 4d 96 ae 33  b7 e7 6b 37 10 34 98 66  |....M..3..k7.4.f|
-00000030  b8 38 6b 30 53 17 3e af  80 34 a6 29 0c 3b 8b 05  |.8k0S.>..4.).;..|
-00000040  53 d6 53 fb 65 e3 ec 05  16 f2 c7 17 03 03 00 40  |S.S.e..........@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 10 a0 48 48 86  |.............HH.|
+00000020  ac 1f f4 05 4d 12 9d 90  54 26 ec c8 1f 6d e7 d5  |....M...T&...m..|
+00000030  0c 92 61 88 2f 43 77 75  0c 08 0f 33 ac c3 d3 b0  |..a./Cwu...3....|
+00000040  94 68 e3 3f 9f c9 43 a5  8b ee ed 17 03 03 00 40  |.h.?..C........@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  46 14 e6 50 23 20 15 9f  a4 cc 39 69 43 e7 35 ea  |F..P# ....9iC.5.|
-00000070  3c c3 71 a6 65 dc ba 66  7b 3e b8 8d bc cc 1b f5  |<.q.e..f{>......|
-00000080  2b 65 55 9b 35 c7 30 08  ff 0b 7c b7 bb 75 f1 5c  |+eU.5.0...|..u.\|
+00000060  fd 7d d3 d6 3f a5 10 37  a1 93 20 ca c8 8c 9d c3  |.}..?..7.. .....|
+00000070  90 df 2f 40 e6 83 af b6  be e4 3d 07 ff 0d 24 97  |../@......=...$.|
+00000080  c2 ff af 81 eb b5 91 72  6b 6d 70 8c af 3f 9f 76  |.......rkmp..?.v|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 83 b1 d6  5e 78 d8 7d 8f 22 a2 c9  |........^x.}."..|
-000000b0  81 2d 47 ed 7e a5 65 10  af a0 b4 01 be b3 70 a8  |.-G.~.e.......p.|
-000000c0  9f 5a 07 87 f5                                    |.Z...|
+000000a0  00 00 00 00 00 6b 80 aa  88 45 8c 39 a8 4c ca 33  |.....k...E.9.L.3|
+000000b0  f2 33 85 a0 74 6a 64 a3  43 17 4c 5c 9b 50 e5 8d  |.3..tjd.C.L\.P..|
+000000c0  ff 26 03 e1 07                                    |.&...|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES-GCM b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES-GCM
index 9f48c75..fa4b47b 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES-GCM
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES-GCM
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 97 01 00 00  93 03 03 6d 19 64 2c f0  |...........m.d,.|
-00000010  95 79 38 26 9b e3 db b3  97 ce f8 9c 46 62 08 15  |.y8&........Fb..|
-00000020  a0 f0 7f 20 38 52 bb 27  f8 3b 60 00 00 04 c0 2f  |... 8R.'.;`..../|
+00000000  16 03 01 00 97 01 00 00  93 03 03 8a ca f1 8f ad  |................|
+00000010  fe 0b a3 e1 b8 08 10 1a  40 57 b6 f7 f7 e3 72 c4  |........@W....r.|
+00000020  57 4a 71 f8 30 cd 62 62  c7 0f 2d 00 00 04 c0 2f  |WJq.0.bb..-..../|
 00000030  00 ff 01 00 00 66 00 00  00 0e 00 0c 00 00 09 31  |.....f.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,72 +10,73 @@
 00000080  08 05 08 06 04 01 05 01  06 01 03 03 02 03 03 01  |................|
 00000090  02 01 03 02 02 02 04 02  05 02 06 02              |............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  ac 0c 00 00 a8 03 00 1d  |;...............|
-000002a0  20 2f e5 7d a3 47 cd 62  43 15 28 da ac 5f bb 29  | /.}.G.bC.(.._.)|
-000002b0  07 30 ff f6 84 af c4 cf  c2 ed 90 99 5f 58 cb 3b  |.0.........._X.;|
-000002c0  74 04 01 00 80 99 cc 0d  3d 25 73 2d 21 00 0d 42  |t.......=%s-!..B|
-000002d0  d1 6f 9e ba f4 04 58 30  5f a0 33 e9 b0 3a 69 6d  |.o....X0_.3..:im|
-000002e0  e2 a1 f2 74 f7 09 e7 ef  fb cd 56 22 93 1c 56 8e  |...t......V"..V.|
-000002f0  8f 87 4b 1d 54 f6 34 fd  e6 e0 2f 85 88 9a ab c9  |..K.T.4.../.....|
-00000300  b5 38 cd f3 44 20 7a 68  fd bf 10 ea 14 7e ae 21  |.8..D zh.....~.!|
-00000310  12 ad eb 91 2f 99 44 fb  cf 9e fe 21 19 9f d1 a0  |..../.D....!....|
-00000320  37 19 9e 48 92 0e 80 b7  51 95 45 ee 75 86 f9 52  |7..H....Q.E.u..R|
-00000330  5a f8 67 65 56 af 4d f8  ca 92 8f b7 2a f5 be c1  |Z.geV.M.....*...|
-00000340  04 e0 03 e1 b6 16 03 03  00 04 0e 00 00 00        |..............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 ac 0c  |.`.\!.;.........|
+000002a0  00 00 a8 03 00 1d 20 2f  e5 7d a3 47 cd 62 43 15  |...... /.}.G.bC.|
+000002b0  28 da ac 5f bb 29 07 30  ff f6 84 af c4 cf c2 ed  |(.._.).0........|
+000002c0  90 99 5f 58 cb 3b 74 08  04 00 80 50 0b d9 1c 03  |.._X.;t....P....|
+000002d0  6f 08 05 a6 39 cc 9f 7e  3d f1 fb af 8e 0b 9a ef  |o...9..~=.......|
+000002e0  39 d3 b6 e3 71 9c 5a 37  a1 86 f2 f0 59 01 fc b2  |9...q.Z7....Y...|
+000002f0  51 1c 0e 22 42 24 3e c6  db fb a1 39 9d 75 f4 79  |Q.."B$>....9.u.y|
+00000300  55 dd e5 99 0b 22 5b ed  c7 19 ac db ed d3 ee 23  |U...."[........#|
+00000310  b9 37 2b 51 ea 7f 39 4d  8b 0a bc a2 2e f2 ef 9e  |.7+Q..9M........|
+00000320  a5 8c 99 77 ff d2 fb 46  e4 10 4e a9 b2 a9 ce b6  |...w...F..N.....|
+00000330  50 d4 0a 28 a5 3f 0e 2c  60 cd 0f 07 9c 7e 60 c3  |P..(.?.,`....~`.|
+00000340  79 a5 cf f3 cd 77 5a 16  8d fc 14 16 03 03 00 04  |y....wZ.........|
+00000350  0e 00 00 00                                       |....|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 20 74 90 bd 53 18  |....%...!  t..S.|
-00000010  33 c6 a5 bf 51 71 f7 d7  c3 0c 7f 89 ad b3 73 7b  |3...Qq........s{|
-00000020  48 2f c1 ef 85 32 03 73  28 3b 14 03 03 00 01 01  |H/...2.s(;......|
-00000030  16 03 03 00 28 94 4f 85  68 15 57 b4 8f f4 21 a7  |....(.O.h.W...!.|
-00000040  e5 be 84 7d 3a e0 29 bd  99 20 24 d0 6b 9c 72 3a  |...}:.).. $.k.r:|
-00000050  fc f9 5d 1c 7e cb dd 7a  3b 7c 53 e6 3a           |..].~..z;|S.:|
+00000000  16 03 03 00 25 10 00 00  21 20 ef 3b b1 d2 a3 f6  |....%...! .;....|
+00000010  be f2 fc 2e b5 ed d3 ec  6a fb 2f 0d 5a 04 98 61  |........j./.Z..a|
+00000020  92 26 59 ba 17 26 1b 60  27 2b 14 03 03 00 01 01  |.&Y..&.`'+......|
+00000030  16 03 03 00 28 e2 94 22  bb 71 70 c8 a6 63 e5 6f  |....(..".qp..c.o|
+00000040  2e 00 0f b9 bf 6b 54 34  dc ce b0 12 0b 16 e5 ac  |.....kT4........|
+00000050  8f 6b 1e 96 a1 e3 86 b7  6f 8c 76 09 da           |.k......o.v..|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 28 00 00 00 00 00  |..........(.....|
-00000010  00 00 00 e3 4f 34 0e 47  ae f2 62 e3 aa 62 f3 37  |....O4.G..b..b.7|
-00000020  cf 78 ba 1d 8a 3c d8 29  0c 3c 9d 0c fa ff fd 9b  |.x...<.).<......|
-00000030  65 1b 3f 17 03 03 00 25  00 00 00 00 00 00 00 01  |e.?....%........|
-00000040  fd e1 49 0e 0d 9f a1 51  9e 19 5c 80 a5 15 dc 05  |..I....Q..\.....|
-00000050  ca f0 46 b3 da 03 5a 32  da 4e 2e 3d 33 15 03 03  |..F...Z2.N.=3...|
-00000060  00 1a 00 00 00 00 00 00  00 02 51 78 d9 14 6e a8  |..........Qx..n.|
-00000070  f4 62 60 6d db e0 d5 8c  c5 17 ac aa              |.b`m........|
+00000010  00 00 00 f5 dc 00 28 06  03 50 9b b2 db 4d 89 25  |......(..P...M.%|
+00000020  3a 94 04 85 5b 7a 3f 16  fb 55 8f e0 c3 a3 33 21  |:...[z?..U....3!|
+00000030  65 84 c5 17 03 03 00 25  00 00 00 00 00 00 00 01  |e......%........|
+00000040  a9 35 62 24 4b 63 6e 62  1c 8f 99 e4 e0 3e f0 a2  |.5b$Kcnb.....>..|
+00000050  e3 02 34 6f 10 71 9c 6b  b3 4a 2d 7f 71 15 03 03  |..4o.q.k.J-.q...|
+00000060  00 1a 00 00 00 00 00 00  00 02 91 43 07 98 b1 ba  |...........C....|
+00000070  06 1b dd 21 46 82 63 67  8b bb 1f b5              |...!F.cg....|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES256-GCM-SHA384 b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES256-GCM-SHA384
index f6e5856..2cc2c28 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES256-GCM-SHA384
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-AES256-GCM-SHA384
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 97 01 00 00  93 03 03 5e 39 96 57 2e  |...........^9.W.|
-00000010  de 43 bd 55 30 40 20 95  29 a0 38 7f 69 a3 02 4d  |.C.U0@ .).8.i..M|
-00000020  df 59 4b 17 f1 d6 0b 2e  87 62 af 00 00 04 c0 30  |.YK......b.....0|
+00000000  16 03 01 00 97 01 00 00  93 03 03 0f 13 d8 49 94  |..............I.|
+00000010  b9 cc 41 1d d4 3d bb d2  c9 a3 2c 74 11 ca 01 e8  |..A..=....,t....|
+00000020  5b b0 2e 57 60 b5 30 37  2d b9 f0 00 00 04 c0 30  |[..W`.07-......0|
 00000030  00 ff 01 00 00 66 00 00  00 0e 00 0c 00 00 09 31  |.....f.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,72 +10,73 @@
 00000080  08 05 08 06 04 01 05 01  06 01 03 03 02 03 03 01  |................|
 00000090  02 01 03 02 02 02 04 02  05 02 06 02              |............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 30 00 00  |...DOWNGRD...0..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  ac 0c 00 00 a8 03 00 1d  |;...............|
-000002a0  20 2f e5 7d a3 47 cd 62  43 15 28 da ac 5f bb 29  | /.}.G.bC.(.._.)|
-000002b0  07 30 ff f6 84 af c4 cf  c2 ed 90 99 5f 58 cb 3b  |.0.........._X.;|
-000002c0  74 04 01 00 80 c0 53 9b  58 b3 88 7a 7d 7d 0f 8c  |t.....S.X..z}}..|
-000002d0  c4 10 e3 13 92 ae b4 87  ae a5 e2 2f f9 f0 db a0  |.........../....|
-000002e0  55 72 00 2f 29 eb 12 13  f7 bf 4b 44 be f2 85 f2  |Ur./).....KD....|
-000002f0  00 2d 2c 6a 14 21 44 d5  f8 78 99 67 07 db 27 74  |.-,j.!D..x.g..'t|
-00000300  32 9d 75 8d 7e f5 c2 9b  3e ce 3b aa f4 3a 1d 2d  |2.u.~...>.;..:.-|
-00000310  69 e3 0b 1e a0 95 d9 dc  47 73 42 14 7c 13 60 1f  |i.......GsB.|.`.|
-00000320  73 a9 0f 3b 64 33 18 67  b0 a3 69 f7 da 1d cd d0  |s..;d3.g..i.....|
-00000330  ea 65 9d 79 af aa a6 7f  ea ba 8a c7 d7 3f 80 76  |.e.y.........?.v|
-00000340  73 b0 c4 41 30 16 03 03  00 04 0e 00 00 00        |s..A0.........|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 ac 0c  |.`.\!.;.........|
+000002a0  00 00 a8 03 00 1d 20 2f  e5 7d a3 47 cd 62 43 15  |...... /.}.G.bC.|
+000002b0  28 da ac 5f bb 29 07 30  ff f6 84 af c4 cf c2 ed  |(.._.).0........|
+000002c0  90 99 5f 58 cb 3b 74 08  04 00 80 40 f3 67 86 41  |.._X.;t....@.g.A|
+000002d0  93 17 f7 db b2 80 ca 73  f9 f8 45 24 cc 46 57 47  |.......s..E$.FWG|
+000002e0  28 83 19 df e8 63 e7 19  c4 a2 04 85 25 7d ec 55  |(....c......%}.U|
+000002f0  91 d4 df eb 77 53 c2 3b  d5 71 1a f7 39 d2 ee b4  |....wS.;.q..9...|
+00000300  06 4b e4 07 b7 fa 8a 8e  fa 64 22 83 dd 22 8b b8  |.K.......d".."..|
+00000310  4d a5 1a f5 e3 81 01 81  6a a1 6e 62 54 3a 3a 09  |M.......j.nbT::.|
+00000320  ed 76 f2 5a d3 4e 4b 74  be 46 50 0d 51 77 34 f6  |.v.Z.NKt.FP.Qw4.|
+00000330  02 ef 57 39 29 bf d9 64  ad 65 06 ae a6 8d 94 86  |..W9)..d.e......|
+00000340  84 76 cf 2c 36 98 04 5b  a1 59 6c 16 03 03 00 04  |.v.,6..[.Yl.....|
+00000350  0e 00 00 00                                       |....|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 75 56 9a 51 e6 99  |....%...! uV.Q..|
-00000010  e2 7f 36 c6 3e 7b e0 17  2a 28 73 77 24 6c e9 af  |..6.>{..*(sw$l..|
-00000020  76 68 30 6a 07 4f 49 26  45 6d 14 03 03 00 01 01  |vh0j.OI&Em......|
-00000030  16 03 03 00 28 8e 42 ee  25 3a e2 8a 1a 51 f1 0c  |....(.B.%:...Q..|
-00000040  5b ce d2 2f 2b 86 c6 0f  10 d2 e2 44 da d8 4f 88  |[../+......D..O.|
-00000050  b5 2b 9c 9f 21 06 da 76  93 06 42 43 1f           |.+..!..v..BC.|
+00000000  16 03 03 00 25 10 00 00  21 20 d5 2b 0e 3c e9 3e  |....%...! .+.<.>|
+00000010  e9 b0 3d 86 a9 85 b5 68  af cf 27 cf 4b d4 49 2e  |..=....h..'.K.I.|
+00000020  68 f2 9e 3c 32 7c cb fb  dc 57 14 03 03 00 01 01  |h..<2|...W......|
+00000030  16 03 03 00 28 5a cc f4  77 38 94 46 7b 39 5d 81  |....(Z..w8.F{9].|
+00000040  be 77 a5 4a 76 c9 46 62  17 0b 2b ea 89 c2 29 bd  |.w.Jv.Fb..+...).|
+00000050  4b b0 dd 51 1e b8 7b a9  55 f5 fb b3 6a           |K..Q..{.U...j|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 28 00 00 00 00 00  |..........(.....|
-00000010  00 00 00 7c d4 b3 85 ea  5e 0c 8d 81 0c 7c 99 90  |...|....^....|..|
-00000020  5f fd cc 32 b5 d8 fd 0c  0a 9c 93 a5 35 4d a8 50  |_..2........5M.P|
-00000030  a8 6f 73 17 03 03 00 25  00 00 00 00 00 00 00 01  |.os....%........|
-00000040  49 5c 12 84 e7 cb a4 fb  b1 55 be 89 79 5c a8 df  |I\.......U..y\..|
-00000050  ab 0a e1 1b 98 e6 0f 40  fb f4 47 1f e1 15 03 03  |.......@..G.....|
-00000060  00 1a 00 00 00 00 00 00  00 02 e7 17 b1 82 70 75  |..............pu|
-00000070  42 d5 8f 2e 29 4b b3 a1  a2 3f c2 f8              |B...)K...?..|
+00000010  00 00 00 b9 9b c0 b1 2b  71 af 0b 44 4e 4a cd e8  |.......+q..DNJ..|
+00000020  c6 68 b8 2a d9 67 6f 7f  18 12 22 5c 4b 5c ca 43  |.h.*.go..."\K\.C|
+00000030  ff c1 9d 17 03 03 00 25  00 00 00 00 00 00 00 01  |.......%........|
+00000040  3c ae 33 dd 69 6c 01 a0  d2 a7 91 52 43 f3 78 38  |<.3.il.....RC.x8|
+00000050  94 f4 24 0b 3d c9 bb 5f  02 27 89 bb 9b 15 03 03  |..$.=.._.'......|
+00000060  00 1a 00 00 00 00 00 00  00 02 68 8d d7 d8 2f 95  |..........h.../.|
+00000070  61 09 59 52 0d b8 12 fc  6a 07 28 37              |a.YR....j.(7|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RC4 b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RC4
index 78ea1ff..47a4ef2 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RC4
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RC4
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 97 01 00 00  93 03 03 32 12 2b 12 44  |...........2.+.D|
-00000010  4f 0c 98 c0 fc f6 44 06  3a b1 64 89 a5 8b f4 e4  |O.....D.:.d.....|
-00000020  73 e1 60 1e 51 38 92 f3  83 f3 9f 00 00 04 00 05  |s.`.Q8..........|
+00000000  16 03 01 00 97 01 00 00  93 03 03 2c 3c 18 04 94  |...........,<...|
+00000010  e0 bb 10 99 7c 0c cd 0e  e7 72 bc 83 4d f0 cf d7  |....|....r..M...|
+00000020  4b 8e 2c 8b 52 bf ed 86  65 d2 a3 00 00 04 00 05  |K.,.R...e.......|
 00000030  00 ff 01 00 00 66 00 00  00 0e 00 0c 00 00 09 31  |.....f.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -10,66 +10,67 @@
 00000080  08 05 08 06 04 01 05 01  06 01 03 03 02 03 03 01  |................|
 00000090  02 01 03 02 02 02 04 02  05 02 06 02              |............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 05 00 00  |...DOWNGRD......|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 86 10 00 00  82 00 80 85 ad 31 da a9  |.............1..|
-00000010  fd 0f 5c ca aa 28 d1 08  7d 76 b4 5b b2 09 f4 e0  |..\..(..}v.[....|
-00000020  65 3a 82 7e f8 03 5f c9  82 ae fb 04 f8 f1 dc bc  |e:.~.._.........|
-00000030  b9 2f e8 b4 4c b0 5a de  c8 99 88 99 0b 03 ed 7f  |./..L.Z.........|
-00000040  e4 84 a0 6b 6d 55 1e f6  ea 9f 5a 55 1e 5c e5 f1  |...kmU....ZU.\..|
-00000050  f4 8a f3 7b 7c 20 fc 4b  5d 31 98 c3 bb ce ba 6a  |...{| .K]1.....j|
-00000060  e8 e5 58 a1 db 5a 84 7d  ef cd 17 52 2f 66 31 d2  |..X..Z.}...R/f1.|
-00000070  27 e4 29 1c 9e e0 39 a9  e0 7f 5f 25 d7 49 95 28  |'.)...9..._%.I.(|
-00000080  08 67 1e 25 5f 12 39 b0  a5 63 85 14 03 03 00 01  |.g.%_.9..c......|
-00000090  01 16 03 03 00 24 88 e9  9e 1d 16 8f f7 6e b1 c9  |.....$.......n..|
-000000a0  06 dc 50 e7 40 da 21 84  de 97 e6 a2 8d 78 96 9a  |..P.@.!......x..|
-000000b0  39 9d aa 91 43 15 0f cf  f4 e9                    |9...C.....|
+00000000  16 03 03 00 86 10 00 00  82 00 80 a2 43 45 e6 1e  |............CE..|
+00000010  08 d3 29 62 0b 40 75 98  a3 f6 68 d7 78 31 b0 c9  |..)b.@u...h.x1..|
+00000020  f4 f8 a6 98 dc d8 72 c1  2a 68 80 26 54 1c 16 af  |......r.*h.&T...|
+00000030  9f 67 cf ee 74 de 9e 29  b6 cd 0d eb df aa ea 44  |.g..t..).......D|
+00000040  72 c9 aa fc ff c9 2d 9d  bf bc f0 9b c1 7b 0d 5c  |r.....-......{.\|
+00000050  69 0c 75 d8 23 09 29 97  f6 38 9c f9 4f 1b 4a d5  |i.u.#.)..8..O.J.|
+00000060  bd 04 d4 15 b3 a6 80 02  a4 11 32 d7 c0 cf 89 1f  |..........2.....|
+00000070  93 80 2b 48 49 51 44 b7  77 3c bf b1 a6 87 a3 ff  |..+HIQD.w<......|
+00000080  39 37 4a 42 49 92 93 25  0a 51 9a 14 03 03 00 01  |97JBI..%.Q......|
+00000090  01 16 03 03 00 24 b5 c9  d6 9c ec 77 38 d2 30 79  |.....$.....w8.0y|
+000000a0  f1 00 77 31 78 9b e6 ab  ed 46 7c c6 e5 26 0b 44  |..w1x....F|..&.D|
+000000b0  fd 30 b0 fe 0c 84 6f 9a  cf 57                    |.0....o..W|
 >>> Flow 4 (server to client)
-00000000  14 03 03 00 01 01 16 03  03 00 24 c5 34 41 0f 31  |..........$.4A.1|
-00000010  5a 94 d7 4b a9 0a 4e bf  b9 22 ec 76 2c 1f f5 e9  |Z..K..N..".v,...|
-00000020  6b 7b 26 df 41 62 91 b6  dc db 23 2b 8d 3d 49 17  |k{&.Ab....#+.=I.|
-00000030  03 03 00 21 72 31 77 51  94 c5 d4 eb 7c 18 ab 87  |...!r1wQ....|...|
-00000040  29 43 3b c5 78 aa 5c 4a  06 d3 42 5c 61 39 86 12  |)C;.x.\J..B\a9..|
-00000050  b1 ae f6 f7 97 15 03 03  00 16 8a 0e 1d 5c e0 18  |.............\..|
-00000060  12 93 ac 6c 69 32 59 b8  15 88 82 1c 97 f3 5b 9c  |...li2Y.......[.|
+00000000  14 03 03 00 01 01 16 03  03 00 24 58 cc 9f 3f ac  |..........$X..?.|
+00000010  2e 20 73 c9 5e 13 d3 12  3a 63 1e a9 ee 13 3d 0d  |. s.^...:c....=.|
+00000020  51 e9 15 5b 7b 33 92 85  6c fa d6 8a 15 16 dc 17  |Q..[{3..l.......|
+00000030  03 03 00 21 bc af 01 72  48 0c 16 c9 7a c0 3c 27  |...!...rH...z.<'|
+00000040  63 0a f8 34 e4 54 6a 39  39 61 02 bc c2 a0 07 03  |c..4.Tj99a......|
+00000050  fb 2c d0 1b 6a 15 03 03  00 16 98 71 13 a6 5d f5  |.,..j......q..].|
+00000060  7d aa 6d 05 2d a2 dc c0  7b 41 88 36 a2 49 a4 8b  |}.m.-...{A.6.I..|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RSAPKCS1v15 b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RSAPKCS1v15
index 2c52371..0e9be7f 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RSAPKCS1v15
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RSAPKCS1v15
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 91 01 00 00  8d 03 03 96 d3 ee ca ff  |................|
-00000010  77 00 8c e4 14 3a ee 2a  bb 39 8c 62 72 c7 ae 46  |w....:.*.9.br..F|
-00000020  8c 7e 8e 90 96 f1 c3 27  4d 37 3f 00 00 2a c0 30  |.~.....'M7?..*.0|
+00000000  16 03 01 00 91 01 00 00  8d 03 03 84 aa e5 17 f4  |................|
+00000010  80 c4 fb ca 14 f7 c9 d9  55 f0 8e 63 f9 e1 7e ad  |........U..c..~.|
+00000020  e7 5e 60 e9 2b dd 22 dd  d1 11 93 00 00 2a c0 30  |.^`.+."......*.0|
 00000030  00 9f cc a8 cc aa c0 2f  00 9e c0 28 00 6b c0 27  |......./...(.k.'|
 00000040  00 67 c0 14 00 39 c0 13  00 33 00 9d 00 9c 00 3d  |.g...9...3.....=|
 00000050  00 3c 00 35 00 2f 00 ff  01 00 00 3a 00 00 00 0e  |.<.5./.....:....|
@@ -10,72 +10,73 @@
 00000080  00 1e 00 19 00 18 00 16  00 00 00 17 00 00 00 0d  |................|
 00000090  00 04 00 02 04 01                                 |......|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 30 00 00  |...DOWNGRD...0..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  ac 0c 00 00 a8 03 00 1d  |;...............|
-000002a0  20 2f e5 7d a3 47 cd 62  43 15 28 da ac 5f bb 29  | /.}.G.bC.(.._.)|
-000002b0  07 30 ff f6 84 af c4 cf  c2 ed 90 99 5f 58 cb 3b  |.0.........._X.;|
-000002c0  74 04 01 00 80 c9 24 3c  3d dd 65 45 f8 e4 92 b9  |t.....$<=.eE....|
-000002d0  2b 03 c2 9f f5 73 1f 84  dd 9b da 82 2b 44 7c f1  |+....s......+D|.|
-000002e0  7c 55 d8 53 39 e9 d9 ea  f1 6a 23 7f b0 aa 30 94  ||U.S9....j#...0.|
-000002f0  37 b7 06 59 1a fc 09 ba  d9 68 f7 c8 96 5d 80 e1  |7..Y.....h...]..|
-00000300  7c f4 1b 36 0a 8a dd 2e  c5 d0 27 da 4a 75 98 fb  ||..6......'.Ju..|
-00000310  43 51 3f 8e 95 0d 7b 42  93 8a d5 dc 55 59 ef 69  |CQ?...{B....UY.i|
-00000320  91 82 a3 d8 7e 54 a4 7b  05 17 06 58 21 62 79 b7  |....~T.{...X!by.|
-00000330  67 bd ac 8c 9e 23 73 01  17 49 4b 5d 24 7a 29 0b  |g....#s..IK]$z).|
-00000340  05 ec 24 1e cb 16 03 03  00 04 0e 00 00 00        |..$...........|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 ac 0c  |.`.\!.;.........|
+000002a0  00 00 a8 03 00 1d 20 2f  e5 7d a3 47 cd 62 43 15  |...... /.}.G.bC.|
+000002b0  28 da ac 5f bb 29 07 30  ff f6 84 af c4 cf c2 ed  |(.._.).0........|
+000002c0  90 99 5f 58 cb 3b 74 04  01 00 80 2c d2 21 86 4f  |.._X.;t....,.!.O|
+000002d0  e0 b7 f1 7d f8 8f ca b3  e7 ef 34 e5 ea 78 12 b1  |...}......4..x..|
+000002e0  92 1b 1b 7f 35 da 38 cb  a9 1a 52 97 0e df 33 83  |....5.8...R...3.|
+000002f0  e2 10 cb 72 78 41 66 9b  55 c9 a3 0b de ef b5 f3  |...rxAf.U.......|
+00000300  8e 11 fa 5c a5 2a 93 29  b0 e2 42 9b 07 55 bd 6c  |...\.*.)..B..U.l|
+00000310  fa 3e a5 5b 2c 5b 3e d8  fa 76 6b d4 63 2c 47 22  |.>.[,[>..vk.c,G"|
+00000320  17 92 9c 40 a4 f3 b3 a4  6d 12 da f7 d9 58 11 3f  |...@....m....X.?|
+00000330  1a 12 8a c8 19 a6 f8 e0  49 b8 6b 79 34 5f f2 46  |........I.ky4_.F|
+00000340  27 62 e2 0e 13 93 74 b5  0b 63 8a 16 03 03 00 04  |'b....t..c......|
+00000350  0e 00 00 00                                       |....|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 8e 76 7a 64 15 47  |....%...! .vzd.G|
-00000010  60 08 88 f8 3c ca 23 ce  e3 f1 52 18 e0 94 6f 7a  |`...<.#...R...oz|
-00000020  be 7b 39 c6 42 eb 14 d9  f3 7a 14 03 03 00 01 01  |.{9.B....z......|
-00000030  16 03 03 00 28 a8 16 b6  f4 4e 1e f1 5a 8a 04 a5  |....(....N..Z...|
-00000040  4b a0 40 b1 9f 7e e7 42  22 45 01 03 52 5a 11 53  |K.@..~.B"E..RZ.S|
-00000050  c1 1f a7 19 14 c0 9c d8  53 c3 41 ae 6f           |........S.A.o|
+00000000  16 03 03 00 25 10 00 00  21 20 0a 81 a9 76 78 5f  |....%...! ...vx_|
+00000010  f2 35 87 19 ed 3d 0b 1c  51 ff b7 51 c9 03 5a de  |.5...=..Q..Q..Z.|
+00000020  04 e6 47 3c d0 fe 32 75  64 28 14 03 03 00 01 01  |..G<..2ud(......|
+00000030  16 03 03 00 28 90 38 86  3b 34 cf 30 74 00 91 55  |....(.8.;4.0t..U|
+00000040  82 bd 9b 3a 78 34 09 3f  a6 33 3f 7a 77 a5 53 67  |...:x4.?.3?zw.Sg|
+00000050  30 94 30 cb 19 0c a8 ac  10 54 b8 90 57           |0.0......T..W|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 28 00 00 00 00 00  |..........(.....|
-00000010  00 00 00 e8 93 95 10 51  dd 7c d1 07 72 73 c1 9d  |.......Q.|..rs..|
-00000020  6b 2a 47 ce f5 56 3f e0  2f c4 41 97 ea 6d 83 07  |k*G..V?./.A..m..|
-00000030  3f 80 f5 17 03 03 00 25  00 00 00 00 00 00 00 01  |?......%........|
-00000040  44 c5 ed 59 85 39 66 98  bb de 1a d3 03 f3 29 94  |D..Y.9f.......).|
-00000050  4a 53 bd 25 bc 0a 23 11  10 68 c7 15 ad 15 03 03  |JS.%..#..h......|
-00000060  00 1a 00 00 00 00 00 00  00 02 c8 a1 07 6c d8 6a  |.............l.j|
-00000070  cc f8 6a 5b d1 8c 32 93  71 23 c8 71              |..j[..2.q#.q|
+00000010  00 00 00 e5 08 6e 55 df  84 0e 16 f9 e2 b0 44 3c  |.....nU.......D<|
+00000020  e7 e4 a1 e2 61 ee 18 cb  bd c1 71 8f aa 23 c7 e1  |....a.....q..#..|
+00000030  de ab 86 17 03 03 00 25  00 00 00 00 00 00 00 01  |.......%........|
+00000040  6d 0c 13 09 51 5e 5b e8  2a 85 c6 99 7e 9a 7d 79  |m...Q^[.*...~.}y|
+00000050  45 9b 63 18 d0 41 3d e7  78 24 93 52 11 15 03 03  |E.c..A=.x$.R....|
+00000060  00 1a 00 00 00 00 00 00  00 02 ec a4 cf b9 7a 35  |..............z5|
+00000070  9b 64 01 f4 7e 7d f0 08  05 79 7b 46              |.d..~}...y{F|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RSAPSS b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RSAPSS
index c260afe..465d8db 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RSAPSS
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-RSA-RSAPSS
@@ -1,54 +1,55 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 91 01 00 00  8d 03 03 de a3 85 5b 56  |..............[V|
-00000010  34 e4 d0 57 07 66 8d 3c  39 00 eb 27 02 22 c9 f3  |4..W.f.<9..'."..|
-00000020  23 a6 5e 08 3a 6d 06 09  8f d9 00 00 00 2a c0 30  |#.^.:m.......*.0|
+00000000  16 03 01 00 91 01 00 00  8d 03 03 6d d9 a6 ff 3e  |...........m...>|
+00000010  4b 00 33 67 b4 8c c6 e8  07 ee f3 77 83 31 81 e9  |K.3g.......w.1..|
+00000020  8f 3e 9e 77 8b 5c 8b 84  47 b4 33 00 00 2a c0 30  |.>.w.\..G.3..*.0|
 00000030  00 9f cc a8 cc aa c0 2f  00 9e c0 28 00 6b c0 27  |......./...(.k.'|
 00000040  00 67 c0 14 00 39 c0 13  00 33 00 9d 00 9c 00 3d  |.g...9...3.....=|
 00000050  00 3c 00 35 00 2f 00 ff  01 00 00 3a 00 00 00 0e  |.<.5./.....:....|
 00000060  00 0c 00 00 09 31 32 37  2e 30 2e 30 2e 31 00 0b  |.....127.0.0.1..|
 00000070  00 04 03 00 01 02 00 0a  00 0c 00 0a 00 1d 00 17  |................|
 00000080  00 1e 00 19 00 18 00 16  00 00 00 17 00 00 00 0d  |................|
-00000090  00 04 00 02 08 04                                 |......|
+00000090  00 04 00 02 08 06                                 |......|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 30 00 00  |...DOWNGRD...0..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 15 03 03 00  02 02 28                 |;.........(|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 15 03 03 00 02 02  |.`.\!.;.........|
+000002a0  28                                                |(|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-Resume b/libgo/go/crypto/tls/testdata/Server-TLSv12-Resume
index cebc00b..d1dba66 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-Resume
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-Resume
@@ -1,48 +1,48 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 01 33 01 00 01  2f 03 03 b0 fe 51 14 a8  |....3.../....Q..|
-00000010  15 64 e2 64 e4 8e 4f 93  bf 17 38 50 d8 fb 4c fb  |.d.d..O...8P..L.|
-00000020  03 04 a2 c0 9d b9 d2 19  8f e6 9a 20 5e e4 28 dd  |........... ^.(.|
-00000030  e1 a6 89 f5 b2 5e 1a 7b  d3 af 0a bb 19 dc e1 2f  |.....^.{......./|
-00000040  58 d7 9e 59 a7 b7 de 07  bb 06 4d 0c 00 04 00 2f  |X..Y......M..../|
+00000000  16 03 01 01 33 01 00 01  2f 03 03 c0 ac ee 47 eb  |....3.../.....G.|
+00000010  75 70 12 a9 b7 d9 29 03  ba dd 0c 26 ef 07 cd c1  |up....)....&....|
+00000020  ac 2b b5 14 8a 59 3a d7  58 7d 20 20 eb 74 37 f4  |.+...Y:.X}  .t7.|
+00000030  79 3b 34 ed e4 b1 51 00  b9 09 04 bc 48 82 07 a2  |y;4...Q.....H...|
+00000040  cc 47 2d dc 16 54 a6 02  0c 5e f2 23 00 04 00 2f  |.G-..T...^.#.../|
 00000050  00 ff 01 00 00 e2 00 00  00 0e 00 0c 00 00 09 31  |...............1|
 00000060  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000070  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
 00000080  00 23 00 78 50 46 ad c1  db a8 38 86 7b 2b bb fd  |.#.xPF....8.{+..|
 00000090  d0 c3 42 3e 00 00 00 00  00 00 00 00 00 00 00 00  |..B>............|
-000000a0  00 00 00 00 94 6f 2c 9f  83 61 fe 79 79 ae dc c2  |.....o,..a.yy...|
-000000b0  a0 99 e2 59 46 79 88 b8  ed 74 da ef da 3e 7e 69  |...YFy...t...>~i|
-000000c0  af 34 63 b3 7f 52 e1 07  4d f8 40 69 63 85 8c 66  |.4c..R..M.@ic..f|
-000000d0  a6 d6 f7 b7 b0 f2 d4 12  f4 2a 33 94 64 76 91 5b  |.........*3.dv.[|
-000000e0  6c 7d 49 37 3c 0b 76 3e  d6 5c 0b 65 79 96 31 51  |l}I7<.v>.\.ey.1Q|
-000000f0  46 01 51 94 38 5b 51 d5  2d 1a 8b 19 00 16 00 00  |F.Q.8[Q.-.......|
+000000a0  00 00 00 00 94 6f 2c 9f  83 61 5c 5f 43 13 c2 76  |.....o,..a\_C..v|
+000000b0  91 3a c1 1a 8c 51 00 5c  a0 93 a9 06 e2 0c b0 65  |.:...Q.\.......e|
+000000c0  e3 8c 0d 4b 7b 7e 52 32  b8 3c b3 76 c5 bf 95 4d  |...K{~R2.<.v...M|
+000000d0  29 71 50 81 e3 2b 6f 4a  32 dc 33 94 15 c5 fe 38  |)qP..+oJ2.3....8|
+000000e0  b4 0a fc 03 38 90 32 db  c0 7f 99 62 a9 89 15 d0  |....8.2....b....|
+000000f0  f6 79 64 79 38 b0 e2 19  07 82 82 0a 00 16 00 00  |.ydy8...........|
 00000100  00 17 00 00 00 0d 00 30  00 2e 04 03 05 03 06 03  |.......0........|
 00000110  08 07 08 08 08 09 08 0a  08 0b 08 04 08 05 08 06  |................|
 00000120  04 01 05 01 06 01 03 03  02 03 03 01 02 01 03 02  |................|
 00000130  02 02 04 02 05 02 06 02                           |........|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 51 02 00 00  4d 03 03 00 00 00 00 00  |....Q...M.......|
+00000000  16 03 03 00 57 02 00 00  53 03 03 00 00 00 00 00  |....W...S.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000020  00 00 00 44 4f 57 4e 47  52 44 01 20 5e e4 28 dd  |...DOWNGRD. ^.(.|
-00000030  e1 a6 89 f5 b2 5e 1a 7b  d3 af 0a bb 19 dc e1 2f  |.....^.{......./|
-00000040  58 d7 9e 59 a7 b7 de 07  bb 06 4d 0c 00 2f 00 00  |X..Y......M../..|
-00000050  05 ff 01 00 01 00 14 03  03 00 01 01 16 03 03 00  |................|
-00000060  40 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |@...............|
-00000070  00 c6 4d ae 43 25 3e 7a  8b 1d bc 77 6f 6d 05 c8  |..M.C%>z...wom..|
-00000080  93 a1 d0 ee 81 0b e6 3e  e6 0d 55 ff 3a 76 f3 e1  |.......>..U.:v..|
-00000090  49 0b e4 3b d2 1c cb 2d  9f 1e 03 cb f9 8c 60 96  |I..;...-......`.|
-000000a0  b1                                                |.|
+00000020  00 00 00 44 4f 57 4e 47  52 44 01 20 eb 74 37 f4  |...DOWNGRD. .t7.|
+00000030  79 3b 34 ed e4 b1 51 00  b9 09 04 bc 48 82 07 a2  |y;4...Q.....H...|
+00000040  cc 47 2d dc 16 54 a6 02  0c 5e f2 23 00 2f 00 00  |.G-..T...^.#./..|
+00000050  0b ff 01 00 01 00 00 0b  00 02 01 00 14 03 03 00  |................|
+00000060  01 01 16 03 03 00 40 00  00 00 00 00 00 00 00 00  |......@.........|
+00000070  00 00 00 00 00 00 00 a6  49 4b 9d e0 3c e1 58 b4  |........IK..<.X.|
+00000080  f9 50 e6 a6 32 ce 65 74  14 95 07 05 0c ef be 7d  |.P..2.et.......}|
+00000090  74 8c 46 3e 2a 07 de 5f  7a 08 b9 a0 80 f0 52 90  |t.F>*.._z.....R.|
+000000a0  d4 6b c5 0f c5 ae 54                              |.k....T|
 >>> Flow 3 (client to server)
-00000000  14 03 03 00 01 01 16 03  03 00 40 c9 ab 6e 5b 04  |..........@..n[.|
-00000010  35 28 90 72 16 86 e8 ad  a5 4d 2e f8 5a ee 42 8e  |5(.r.....M..Z.B.|
-00000020  6c 3f a4 00 3a de a8 c5  8f e3 59 15 10 09 31 91  |l?..:.....Y...1.|
-00000030  5c ad a1 b1 15 bc fd a1  4a 91 4b 7a 50 a7 37 c4  |\.......J.KzP.7.|
-00000040  3b 9d 3b 30 8e cd 8c ec  b3 bc 94                 |;.;0.......|
+00000000  14 03 03 00 01 01 16 03  03 00 40 8c 59 48 06 01  |..........@.YH..|
+00000010  a4 c6 35 ad a6 f5 a9 d3  31 ea 58 64 0e 45 91 4c  |..5.....1.Xd.E.L|
+00000020  fb e7 c6 6e 27 e8 92 a9  9c c3 c6 29 e9 6c 55 3a  |...n'......).lU:|
+00000030  2a fe 0f 40 d9 aa 3e fe  ab 66 e1 38 91 d1 db ac  |*..@..>..f.8....|
+00000040  58 13 f0 3c 5e f1 a9 9c  fd 07 04                 |X..<^......|
 >>> Flow 4 (server to client)
 00000000  17 03 03 00 40 00 00 00  00 00 00 00 00 00 00 00  |....@...........|
-00000010  00 00 00 00 00 95 7d fd  bf 36 bd 7d 5f 42 2f 0a  |......}..6.}_B/.|
-00000020  84 27 ed 2d 76 07 cb 5a  96 93 74 68 9f 2a 66 fa  |.'.-v..Z..th.*f.|
-00000030  85 b0 38 bc da 8d 11 7f  80 80 21 ed 34 db 58 91  |..8.......!.4.X.|
-00000040  b0 d7 8d 08 f1 15 03 03  00 30 00 00 00 00 00 00  |.........0......|
-00000050  00 00 00 00 00 00 00 00  00 00 6f ed 4a be 10 ea  |..........o.J...|
-00000060  6a 75 ee 69 c2 2c f7 54  8a 18 aa 5f 7c 65 d0 d8  |ju.i.,.T..._|e..|
-00000070  0c 94 dc a8 47 45 83 e6  68 09                    |....GE..h.|
+00000010  00 00 00 00 00 a6 4f 7a  f8 b0 6e 25 13 fb b6 68  |......Oz..n%...h|
+00000020  2d 1e 22 1b 95 93 63 e8  e1 9c 93 3e 53 78 bb aa  |-."...c....>Sx..|
+00000030  9f 6e 84 56 28 31 a0 ed  a9 a3 06 fd e6 f9 c4 c4  |.n.V(1..........|
+00000040  56 5f 5f c2 fb 15 03 03  00 30 00 00 00 00 00 00  |V__......0......|
+00000050  00 00 00 00 00 00 00 00  00 00 c9 98 24 06 26 73  |............$.&s|
+00000060  87 27 73 bd 7a 30 b5 85  28 f7 c4 b6 7a b0 96 9f  |.'s.z0..(...z...|
+00000070  a8 d4 43 1d 8e f5 a5 9f  f3 f3                    |..C.......|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-ResumeDisabled b/libgo/go/crypto/tls/testdata/Server-TLSv12-ResumeDisabled
index 102ca95..2adf586 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-ResumeDisabled
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-ResumeDisabled
@@ -1,93 +1,94 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 01 33 01 00 01  2f 03 03 ec 14 e8 1f 51  |....3.../......Q|
-00000010  60 0d 36 02 55 a0 c0 26  d1 a3 c4 e9 3a aa 95 4d  |`.6.U..&....:..M|
-00000020  6e 2b 72 fa 21 3d 26 0c  33 d6 87 20 12 fa 92 10  |n+r.!=&.3.. ....|
-00000030  d6 81 cb 7d 83 97 81 0a  7b 02 0d b7 88 48 fd 14  |...}....{....H..|
-00000040  82 23 7e c1 88 e7 2c 79  be 5c e1 30 00 04 00 2f  |.#~...,y.\.0.../|
+00000000  16 03 01 01 33 01 00 01  2f 03 03 3a 1d a7 55 e5  |....3.../..:..U.|
+00000010  e7 ab ac 09 74 a3 4e e1  b9 cf 90 92 74 83 13 1c  |....t.N.....t...|
+00000020  e7 0b 57 c7 4a 48 bb a6  86 f0 93 20 29 15 61 8f  |..W.JH..... ).a.|
+00000030  f1 20 4a 95 e5 ce 8b 8d  60 4c 3c d6 2e 40 22 f4  |. J.....`L<..@".|
+00000040  8d 4e 07 f7 76 c7 28 e8  b0 5d 79 4f 00 04 00 2f  |.N..v.(..]yO.../|
 00000050  00 ff 01 00 00 e2 00 00  00 0e 00 0c 00 00 09 31  |...............1|
 00000060  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000070  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
 00000080  00 23 00 78 50 46 ad c1  db a8 38 86 7b 2b bb fd  |.#.xPF....8.{+..|
 00000090  d0 c3 42 3e 00 00 00 00  00 00 00 00 00 00 00 00  |..B>............|
-000000a0  00 00 00 00 94 6f 2c 9f  83 61 70 4f 8e 34 f4 65  |.....o,..apO.4.e|
-000000b0  e4 64 ba af 8d 55 d8 8a  c4 90 a4 94 d1 84 44 51  |.d...U........DQ|
-000000c0  72 f0 79 b3 2b c3 49 48  58 e7 66 8c 3d 60 dd 65  |r.y.+.IHX.f.=`.e|
-000000d0  ba 93 0a f1 45 28 83 56  19 28 33 94 dd d4 29 db  |....E(.V.(3...).|
-000000e0  f0 80 d1 b2 0a ef 69 03  b5 fa 19 82 a9 0e 42 b0  |......i.......B.|
-000000f0  bb c2 b5 c7 b5 92 1f e6  3b 38 e3 85 00 16 00 00  |........;8......|
+000000a0  00 00 00 00 94 6f 2c 9f  83 61 31 33 93 70 cd 6a  |.....o,..a13.p.j|
+000000b0  19 a2 67 e8 7d cb a4 dc  bb 80 d9 23 20 05 4d 53  |..g.}......# .MS|
+000000c0  1f b6 9f 48 01 e4 84 75  10 25 f9 ed 98 bb 39 7e  |...H...u.%....9~|
+000000d0  fc 8b 16 d8 bc c7 e9 88  e8 1c 33 94 10 13 6b d4  |..........3...k.|
+000000e0  3d fa d7 73 b2 d4 ea 89  58 ed 38 f8 f3 6a e0 5f  |=..s....X.8..j._|
+000000f0  1e f7 49 ed f7 5f 64 39  6b b5 6c fb 00 16 00 00  |..I.._d9k.l.....|
 00000100  00 17 00 00 00 0d 00 30  00 2e 04 03 05 03 06 03  |.......0........|
 00000110  08 07 08 08 08 09 08 0a  08 0b 08 04 08 05 08 06  |................|
 00000120  04 01 05 01 06 01 03 03  02 03 03 01 02 01 03 02  |................|
 00000130  02 02 04 02 05 02 06 02                           |........|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 86 10 00 00  82 00 80 a1 9c 83 96 72  |...............r|
-00000010  04 cb dd 16 d6 02 0c fd  ec 03 7f bb 23 9a a4 b5  |............#...|
-00000020  f0 50 3e 0f 32 bb 92 9d  09 b0 20 f2 08 4b f0 37  |.P>.2..... ..K.7|
-00000030  0d ef f6 22 0d 75 ad 2f  1b ce 1f 87 f0 fe 50 9a  |...".u./......P.|
-00000040  c5 3b a3 fa c7 59 bf dd  4c b6 04 95 a2 c4 83 97  |.;...Y..L.......|
-00000050  04 e8 ab 3a ff 25 7b 2d  aa c0 bd 0f 1f ef 55 34  |...:.%{-......U4|
-00000060  c5 bf 7c 48 b7 9c d0 9a  37 ab fa 32 53 fb 5c 66  |..|H....7..2S.\f|
-00000070  53 8a 81 cf bd 5a 8f d2  76 87 01 b9 29 72 b4 4e  |S....Z..v...)r.N|
-00000080  7c 25 6d b1 4f 59 8b a4  fc cf 27 14 03 03 00 01  ||%m.OY....'.....|
-00000090  01 16 03 03 00 40 e2 b7  3e 75 4d 7a ee 8e 32 75  |.....@..>uMz..2u|
-000000a0  e1 04 11 55 63 87 d6 f2  8d f1 78 de 8a fa bb 1e  |...Uc.....x.....|
-000000b0  74 1d 5c e3 c3 77 c4 10  6b 6d 63 ab 5c 08 b4 3e  |t.\..w..kmc.\..>|
-000000c0  f0 f7 cb 72 cd 5e 83 e2  6f 67 06 83 cf 22 73 05  |...r.^..og..."s.|
-000000d0  2d 6f 12 58 2c 74                                 |-o.X,t|
+00000000  16 03 03 00 86 10 00 00  82 00 80 70 09 52 14 dc  |...........p.R..|
+00000010  cd 33 63 59 1e 37 b2 30  ce 49 02 81 54 0e 94 ba  |.3cY.7.0.I..T...|
+00000020  9f a3 72 48 48 9d 52 65  a6 31 88 59 7d 23 26 78  |..rHH.Re.1.Y}#&x|
+00000030  91 25 f7 35 81 b0 9f 7a  4f 3e df 6d f9 be 25 f2  |.%.5...zO>.m..%.|
+00000040  05 ce d7 72 0c 2f b8 84  7f 05 ec 40 ba 06 b8 b2  |...r./.....@....|
+00000050  a3 eb 3d 50 7d e0 23 c7  3e 4f cb 93 93 46 97 ee  |..=P}.#.>O...F..|
+00000060  ca 63 21 79 83 c6 24 6d  44 5c f5 a3 f0 5e 2c f5  |.c!y..$mD\...^,.|
+00000070  33 f3 06 a9 9a 1a f9 b0  8a f1 21 38 2c 9e cd ba  |3.........!8,...|
+00000080  3c 63 07 76 dd 9c e7 19  a0 97 2a 14 03 03 00 01  |<c.v......*.....|
+00000090  01 16 03 03 00 40 7c 48  df 87 c4 c4 85 2d da 0e  |.....@|H.....-..|
+000000a0  fd 6c 53 a7 52 f5 80 83  78 97 4f 71 48 be f4 6e  |.lS.R...x.OqH..n|
+000000b0  46 8c dc c2 fa e7 e1 af  34 2b 5d 33 5f 64 79 7d  |F.......4+]3_dy}|
+000000c0  0c b4 df e0 90 aa b7 d4  82 ca 9b c5 e8 14 9b 49  |...............I|
+000000d0  b5 bf c3 7f e6 e6                                 |......|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 d3 51 28 12 19  |............Q(..|
-00000020  67 4f 60 7e 0e af f1 f9  31 4b 2c a3 87 a5 5c 61  |gO`~....1K,...\a|
-00000030  1a d3 58 57 8f b5 a1 75  87 86 ca 7b e2 a3 bf 53  |..XW...u...{...S|
-00000040  2a 92 09 04 43 29 9b 22  c5 19 a4 17 03 03 00 40  |*...C).".......@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 e2 e1 27 2b 83  |.............'+.|
+00000020  17 2e 96 bc 84 93 99 10  b3 98 cc 1b 8e 2b 08 29  |.............+.)|
+00000030  b1 fc 2d e6 33 78 11 82  a5 c7 e5 7d 28 8a e4 e3  |..-.3x.....}(...|
+00000040  8a 5b 37 21 49 1b 45 b8  24 3a 24 17 03 03 00 40  |.[7!I.E.$:$....@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  58 bf 73 aa ed 8a a0 61  c5 81 ac 22 1d ab 7b 75  |X.s....a..."..{u|
-00000070  8b 31 97 fc df 6a e9 07  a7 3e c8 2d 3d 70 b1 b7  |.1...j...>.-=p..|
-00000080  c1 ca 15 d5 c6 ac 32 ed  64 1f 98 d5 7e 17 3b 95  |......2.d...~.;.|
+00000060  e8 cd 9a 90 f9 0c c7 cb  89 83 2c 0c fa 5b 02 d2  |..........,..[..|
+00000070  d9 d3 0d a8 e8 60 ca 53  bd 8a d9 fb 70 6e a2 71  |.....`.S....pn.q|
+00000080  46 b3 18 21 60 2d 4a 4a  ee 14 40 99 3d 6f f6 bc  |F..!`-JJ..@.=o..|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 e1 a6 0c  04 db 23 62 bb 99 9f b7  |..........#b....|
-000000b0  1b 2b ae 6d 7d 9f 54 8e  39 60 6c d6 94 34 fa cd  |.+.m}.T.9`l..4..|
-000000c0  a8 7c ed a8 52                                    |.|..R|
+000000a0  00 00 00 00 00 85 19 88  1d 3b 91 b4 ed 20 6c 24  |.........;... l$|
+000000b0  de a3 ce 3f d6 3c 1a 8c  db 28 56 6b df 55 ca 38  |...?.<...(Vk.U.8|
+000000c0  61 7b 44 33 b1                                    |a{D3.|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI b/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI
index 380db2a..0ea8375 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 99 01 00 00  95 03 03 dd e8 cc 23 63  |..............#c|
-00000010  70 38 e5 f9 db 6c 77 0b  be e9 53 ad 06 97 cb 02  |p8...lw...S.....|
-00000020  d4 a7 bc d2 68 80 bf b8  0c 51 bc 00 00 04 00 2f  |....h....Q...../|
+00000000  16 03 01 00 99 01 00 00  95 03 03 fb d6 71 b2 32  |.............q.2|
+00000010  74 6c e1 56 19 42 e6 46  a2 0e 37 1f ad 96 4b af  |tl.V.B.F..7...K.|
+00000020  8b 4c aa 71 2a 53 d8 df  74 7d 39 00 00 04 00 2f  |.L.q*S..t}9..../|
 00000030  00 ff 01 00 00 68 00 00  00 10 00 0e 00 00 0b 73  |.....h.........s|
 00000040  6e 69 74 65 73 74 2e 63  6f 6d 00 0b 00 04 03 00  |nitest.com......|
 00000050  01 02 00 0a 00 0c 00 0a  00 1d 00 17 00 1e 00 19  |................|
@@ -10,74 +10,75 @@
 00000080  08 04 08 05 08 06 04 01  05 01 06 01 03 03 02 03  |................|
 00000090  03 01 02 01 03 02 02 02  04 02 05 02 06 02        |..............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 86 10 00 00  82 00 80 88 3a 3f eb 46  |............:?.F|
-00000010  28 cd 34 8f 95 5a 1e f8  c9 09 7d b0 97 9c 84 62  |(.4..Z....}....b|
-00000020  20 fd c7 cd 2e 09 27 2e  bb b7 1c b6 e1 05 7b f4  | .....'.......{.|
-00000030  cc 52 14 ee 6c 9b 18 4e  31 5a 4d be 8c 84 e3 6c  |.R..l..N1ZM....l|
-00000040  27 ca e9 c4 e9 da 9a 84  cc 7c b5 87 27 e1 be 1c  |'........|..'...|
-00000050  7a 70 3b 2a 71 a4 7d c5  4b ab 28 0e 4b ff 1f c4  |zp;*q.}.K.(.K...|
-00000060  d0 08 0b 9b ce e6 b8 ae  a2 a9 c5 c9 0a 73 1d a0  |.............s..|
-00000070  88 18 11 55 61 e1 1b 83  82 93 19 bb dc 29 f9 aa  |...Ua........)..|
-00000080  44 e0 b0 3b b9 dd 73 98  52 42 7b 14 03 03 00 01  |D..;..s.RB{.....|
-00000090  01 16 03 03 00 40 a4 e7  a1 51 63 e2 d7 df 93 32  |.....@...Qc....2|
-000000a0  01 f2 f1 14 a0 a3 1c 04  f1 c6 19 8c ab cb 51 b5  |..............Q.|
-000000b0  78 12 a4 43 08 62 14 ff  5c a0 5f aa 61 d8 c3 2c  |x..C.b..\._.a..,|
-000000c0  c8 af 05 f8 83 ff fb 6a  d9 a7 06 a9 ea b0 92 f5  |.......j........|
-000000d0  75 5a bc e7 57 c3                                 |uZ..W.|
+00000000  16 03 03 00 86 10 00 00  82 00 80 a4 48 88 75 7b  |............H.u{|
+00000010  a2 04 19 14 69 30 12 d6  14 00 0c 44 e4 68 06 c6  |....i0.....D.h..|
+00000020  11 56 53 0c e5 52 fb 84  e2 6e b7 c6 eb 0d 79 25  |.VS..R...n....y%|
+00000030  19 f0 bf e4 51 73 85 d5  82 5a 07 53 b2 65 97 6a  |....Qs...Z.S.e.j|
+00000040  a1 1b 56 bb 23 35 15 83  0f 60 ee de 16 a2 ea 61  |..V.#5...`.....a|
+00000050  23 10 e1 5e cf 73 fe 5d  5a 53 16 42 0c 29 a5 ff  |#..^.s.]ZS.B.)..|
+00000060  06 e5 c4 87 11 d6 24 91  25 e5 58 81 40 80 9e 71  |......$.%.X.@..q|
+00000070  49 40 47 50 37 28 7b ed  76 cc 5a fb 04 ba 9c f8  |I@GP7({.v.Z.....|
+00000080  be ce 87 07 75 d2 30 88  09 cf bc 14 03 03 00 01  |....u.0.........|
+00000090  01 16 03 03 00 40 60 1c  31 95 7d c2 a9 9b 29 c2  |.....@`.1.}...).|
+000000a0  ef 59 58 dd fb 26 34 81  60 dc 17 19 c1 23 8d 8f  |.YX..&4.`....#..|
+000000b0  a8 d2 62 31 96 3d d2 61  b9 c8 7e bf 47 4c 04 fd  |..b1.=.a..~.GL..|
+000000c0  7c 30 05 37 8e 03 df 13  a1 4d f1 81 05 d7 4c 49  ||0.7.....M....LI|
+000000d0  88 d6 c0 21 52 e3                                 |...!R.|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 63 e2 4a 8d 77  |...........c.J.w|
-00000020  d8 d9 50 ae ba b0 44 d9  e2 7d 97 52 e6 65 07 5e  |..P...D..}.R.e.^|
-00000030  a1 03 19 a7 f6 a2 af 89  00 99 da 98 29 43 43 47  |............)CCG|
-00000040  9b 3c 8f 03 1a 36 27 e3  d8 db b7 17 03 03 00 40  |.<...6'........@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 73 15 54 76 ad  |...........s.Tv.|
+00000020  c4 38 b0 40 45 32 a8 ca  05 19 bd ce 6e 39 77 6b  |.8.@E2......n9wk|
+00000030  46 a7 f8 45 a8 cd cd 98  8c aa cf 46 83 f0 20 93  |F..E.......F.. .|
+00000040  0d 18 99 d4 2a f9 15 4a  2b f6 bf 17 03 03 00 40  |....*..J+......@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  c2 6b 34 e5 79 04 14 ec  cf 14 4c 71 14 02 0d b3  |.k4.y.....Lq....|
-00000070  29 31 ec d8 40 81 12 15  8e 17 8a 42 33 1a 82 9a  |)1..@......B3...|
-00000080  be e9 6c dc dc 49 56 7a  fd 13 0a 20 37 79 e4 71  |..l..IVz... 7y.q|
+00000060  79 8d 24 ef 72 b3 2c e2  10 a5 6d 3d 61 6c df c1  |y.$.r.,...m=al..|
+00000070  26 bf 7e b5 cd b2 8e 87  b9 54 bf ee 35 07 bc 55  |&.~......T..5..U|
+00000080  6c cd a2 d3 b4 bb 8c 63  fd ef b1 f0 2f 6d aa d9  |l......c..../m..|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 4d 29 ee  b6 bf f8 71 69 4e 96 a4  |.....M)....qiN..|
-000000b0  5d 06 0e ef a9 aa 3f 16  19 c9 5d 8e 89 4f d2 cb  |].....?...]..O..|
-000000c0  17 1a e1 b0 63                                    |....c|
+000000a0  00 00 00 00 00 7b f7 81  e6 5c f2 5c 9d 45 ec 1f  |.....{...\.\.E..|
+000000b0  7b 0d f8 62 19 d4 83 a8  e5 90 71 03 6e 6a 72 4b  |{..b......q.njrK|
+000000c0  7e 64 c4 c4 1a                                    |~d...|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI-GetCertificate b/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI-GetCertificate
index 3e08bd4..199253f 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI-GetCertificate
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI-GetCertificate
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 99 01 00 00  95 03 03 78 fd 27 cc 09  |...........x.'..|
-00000010  5e 07 db a2 78 ba 7a 4d  a9 7f 74 f5 d1 6e a7 d2  |^...x.zM..t..n..|
-00000020  bc f2 ee 22 2d 68 e7 59  c4 9c bc 00 00 04 00 2f  |..."-h.Y......./|
+00000000  16 03 01 00 99 01 00 00  95 03 03 cf 09 e7 0d ce  |................|
+00000010  ce d4 72 66 9d 30 e8 ee  39 b3 95 4c 3b 59 25 66  |..rf.0..9..L;Y%f|
+00000020  d2 f5 d3 82 68 7d e7 26  2e 38 97 00 00 04 00 2f  |....h}.&.8...../|
 00000030  00 ff 01 00 00 68 00 00  00 10 00 0e 00 00 0b 73  |.....h.........s|
 00000040  6e 69 74 65 73 74 2e 63  6f 6d 00 0b 00 04 03 00  |nitest.com......|
 00000050  01 02 00 0a 00 0c 00 0a  00 1d 00 17 00 1e 00 19  |................|
@@ -10,74 +10,75 @@
 00000080  08 04 08 05 08 06 04 01  05 01 06 01 03 03 02 03  |................|
 00000090  03 01 02 01 03 02 02 02  04 02 05 02 06 02        |..............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 86 10 00 00  82 00 80 1f 30 ae eb ce  |............0...|
-00000010  57 b4 1c 5d f9 d0 5c 62  1e 89 6f b8 92 e3 c5 ef  |W..]..\b..o.....|
-00000020  ad cb 1b c2 86 e2 4e b5  88 4a d1 77 9d 89 07 87  |......N..J.w....|
-00000030  43 a1 90 41 70 3e 5e b6  59 29 9c 05 79 8f 97 92  |C..Ap>^.Y)..y...|
-00000040  77 6a 81 30 ec 30 ca e9  5e 66 10 6b 33 85 c8 c4  |wj.0.0..^f.k3...|
-00000050  4f 9a 0d 8e 4b cb d2 d8  93 9c 9c b8 91 95 15 01  |O...K...........|
-00000060  40 7c 61 cb bf a7 8e a9  ca dc 3e 78 ca 27 17 86  |@|a.......>x.'..|
-00000070  40 50 c5 44 03 ad 87 7a  dc 36 76 f5 79 6d 45 df  |@P.D...z.6v.ymE.|
-00000080  01 c1 d4 4f b0 d8 6a 2c  fe 18 71 14 03 03 00 01  |...O..j,..q.....|
-00000090  01 16 03 03 00 40 bc 90  46 f6 24 2f 68 47 7b 21  |.....@..F.$/hG{!|
-000000a0  01 91 67 d4 94 39 c0 8e  9f d4 75 dc f6 3a ac 22  |..g..9....u..:."|
-000000b0  4a a8 44 c9 ea 90 02 9b  fa 5c d5 17 5c 3d 81 bb  |J.D......\..\=..|
-000000c0  90 72 29 5d 92 d8 b1 2d  b7 a6 18 d1 7b 78 f4 7d  |.r)]...-....{x.}|
-000000d0  66 f8 2b 9c b1 90                                 |f.+...|
+00000000  16 03 03 00 86 10 00 00  82 00 80 04 57 b2 56 f0  |............W.V.|
+00000010  a5 fb c3 4d 4e 7d ba 29  18 04 ea 6e 66 d3 97 68  |...MN}.)...nf..h|
+00000020  58 4e c1 47 fe 30 42 4d  bf 5b 10 38 6a 01 83 98  |XN.G.0BM.[.8j...|
+00000030  2b e3 3a ac c8 67 e5 41  0c 5c 3f 88 d5 15 a2 ab  |+.:..g.A.\?.....|
+00000040  6a 2b 70 24 d8 40 78 c1  d9 58 78 04 4d 90 03 eb  |j+p$.@x..Xx.M...|
+00000050  3c b1 61 da 26 62 db b3  41 ab dc 94 22 44 66 b8  |<.a.&b..A..."Df.|
+00000060  49 2c fa 59 de c0 69 3c  20 f8 2f a5 e0 47 1d ec  |I,.Y..i< ./..G..|
+00000070  3c 49 2d 39 f6 41 09 06  79 5f 26 c4 12 3d 9c 8d  |<I-9.A..y_&..=..|
+00000080  16 7b 45 25 65 01 69 9c  a8 f7 90 14 03 03 00 01  |.{E%e.i.........|
+00000090  01 16 03 03 00 40 96 71  33 e6 7e 26 2c 52 9b a5  |.....@.q3.~&,R..|
+000000a0  b3 d2 4e a3 6a 8f 9f 2a  ec c6 23 51 6c 92 5d dd  |..N.j..*..#Ql.].|
+000000b0  6e dd f2 5f 28 5e 8d e4  1f 80 35 16 84 59 0f 36  |n.._(^....5..Y.6|
+000000c0  ce a4 36 16 18 09 a8 30  8b 73 f6 22 0a 8f 22 28  |..6....0.s.".."(|
+000000d0  00 62 d2 8e 19 82                                 |.b....|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 c6 d9 32 9f b9  |.............2..|
-00000020  e8 94 29 d3 62 fb ce 1d  de 4e de be e4 bd 58 86  |..).b....N....X.|
-00000030  96 07 c9 8e 34 77 b5 ca  18 67 39 d4 4c 33 c8 f0  |....4w...g9.L3..|
-00000040  4f 6b a2 22 c7 c1 1e 73  a7 9f 91 17 03 03 00 40  |Ok."...s.......@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 5e ea d1 03 d7  |...........^....|
+00000020  de 82 9a b4 07 52 46 16  fd 28 86 fe 17 2e 77 52  |.....RF..(....wR|
+00000030  67 8f ec 64 93 1e 8e c9  fc fb 69 61 47 78 1a 1b  |g..d......iaGx..|
+00000040  97 8d fc 56 76 f6 53 8b  62 53 4f 17 03 03 00 40  |...Vv.S.bSO....@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  74 73 d2 d5 5c 5d d7 0d  83 0f c6 8b bd 7c f6 31  |ts..\].......|.1|
-00000070  2e cf 9d 01 14 f8 91 59  3d 2b 2f 4b 12 3f 72 1f  |.......Y=+/K.?r.|
-00000080  31 05 95 c9 a6 ab a4 15  b5 f3 a3 5c 68 15 f3 2f  |1..........\h../|
+00000060  f8 17 e8 ba c4 fb 0b 76  f5 a8 2d 3c 48 44 73 da  |.......v..-<HDs.|
+00000070  dc 34 5d fe e4 23 85 28  38 df 1d fe c6 a6 32 35  |.4]..#.(8.....25|
+00000080  c6 bb 71 4a 6e ec e7 c4  4f e6 28 2b fc 06 5e ac  |..qJn...O.(+..^.|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 78 71 a1  35 b1 2b e1 5d 85 d7 9b  |.....xq.5.+.]...|
-000000b0  77 b2 39 20 a9 86 4c 99  0c 96 0d bc 50 f6 a2 ab  |w.9 ..L.....P...|
-000000c0  04 80 30 1b 08                                    |..0..|
+000000a0  00 00 00 00 00 b0 5a ef  20 24 de e4 16 ad 7e 54  |......Z. $....~T|
+000000b0  43 d1 22 a8 fb a6 a4 98  54 74 58 2d 5c af 34 24  |C.".....TtX-\.4$|
+000000c0  89 d1 ab 32 8b                                    |...2.|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI-GetCertificateNotFound b/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI-GetCertificateNotFound
index 6fbad26..870e8fa 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI-GetCertificateNotFound
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-SNI-GetCertificateNotFound
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 99 01 00 00  95 03 03 d9 85 58 6e 7f  |.............Xn.|
-00000010  2d b4 cd f0 04 75 ef 4a  41 8a f9 2e 87 ae 63 c8  |-....u.JA.....c.|
-00000020  59 4b a2 4c 4f 46 c4 15  91 2e 7c 00 00 04 00 2f  |YK.LOF....|..../|
+00000000  16 03 01 00 99 01 00 00  95 03 03 34 7d 89 eb 2a  |...........4}..*|
+00000010  19 64 32 17 5d 37 0e dd  51 2c 7e 08 56 47 f3 2c  |.d2.]7..Q,~.VG.,|
+00000020  ca d0 08 51 86 a6 a3 10  85 5a 41 00 00 04 00 2f  |...Q.....ZA..../|
 00000030  00 ff 01 00 00 68 00 00  00 10 00 0e 00 00 0b 73  |.....h.........s|
 00000040  6e 69 74 65 73 74 2e 63  6f 6d 00 0b 00 04 03 00  |nitest.com......|
 00000050  01 02 00 0a 00 0c 00 0a  00 1d 00 17 00 1e 00 19  |................|
@@ -10,74 +10,75 @@
 00000080  08 04 08 05 08 06 04 01  05 01 06 01 03 03 02 03  |................|
 00000090  03 01 02 01 03 02 02 02  04 02 05 02 06 02        |..............|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 00 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  04 0e 00 00 00           |;............|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 04 0e  |.`.\!.;.........|
+000002a0  00 00 00                                          |...|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 86 10 00 00  82 00 80 5a 46 e5 a3 fb  |...........ZF...|
-00000010  1d 57 11 df 01 db d8 df  8c 2f 25 4a 23 7a 62 38  |.W......./%J#zb8|
-00000020  49 b7 fa 2c 96 94 38 62  b5 9e db 5b 84 d8 8c 24  |I..,..8b...[...$|
-00000030  ec 80 e8 f7 c6 bf 8f fc  ba 2c 46 f6 ea e6 be 02  |.........,F.....|
-00000040  fb 43 2c 97 82 6e 0e ce  1d 16 39 80 09 97 da 65  |.C,..n....9....e|
-00000050  4a ad 87 02 2c f3 6a ce  44 c0 c3 16 ef 67 86 62  |J...,.j.D....g.b|
-00000060  14 1a 85 7a 82 a7 b8 6f  55 8f 1e fb 5d 2d a8 cb  |...z...oU...]-..|
-00000070  ec 77 0d b0 b3 1b a1 99  c9 51 e8 63 98 1a 31 f4  |.w.......Q.c..1.|
-00000080  b2 17 b5 bf 57 fb 23 47  ee 1e d3 14 03 03 00 01  |....W.#G........|
-00000090  01 16 03 03 00 40 61 a2  82 3b 6f c3 f6 8b 1d 93  |.....@a..;o.....|
-000000a0  42 f6 81 a4 e1 3b bd ab  6f d1 9d 04 a6 be f4 1b  |B....;..o.......|
-000000b0  c7 0b 63 c5 d2 4d 8b 69  41 5a 65 8d 8d b1 83 92  |..c..M.iAZe.....|
-000000c0  2d d6 6c c5 45 c7 99 83  89 b7 d5 a1 ae 1b 33 05  |-.l.E.........3.|
-000000d0  d5 00 9f cb 79 50                                 |....yP|
+00000000  16 03 03 00 86 10 00 00  82 00 80 38 86 92 3e 9a  |...........8..>.|
+00000010  54 2d 44 46 76 d1 7c 07  04 83 2f 19 6d 89 c6 95  |T-DFv.|.../.m...|
+00000020  07 63 17 7d ac e5 f7 95  7f f7 f2 3a f6 eb 38 26  |.c.}.......:..8&|
+00000030  e5 c9 32 b1 27 88 46 85  f8 f6 eb 27 a8 9e de 5b  |..2.'.F....'...[|
+00000040  92 f7 3f 03 be 73 f0 de  2e b4 44 a8 89 4a 5a 6f  |..?..s....D..JZo|
+00000050  dc e7 16 9c dc f7 9f ca  40 9e 34 4b c2 45 58 7a  |........@.4K.EXz|
+00000060  6d 5c 4c 58 6a 45 10 21  fb b5 2a 58 17 7d d9 c4  |m\LXjE.!..*X.}..|
+00000070  c9 7d d1 3b df 39 1b 59  6a 49 18 e1 fd 02 a2 1d  |.}.;.9.YjI......|
+00000080  5a 2d 3d c5 ab e7 f6 60  0d aa 38 14 03 03 00 01  |Z-=....`..8.....|
+00000090  01 16 03 03 00 40 0e 2a  fd e7 cd d0 72 ce 06 5c  |.....@.*....r..\|
+000000a0  40 c1 81 ef eb 27 e9 77  a8 d4 cc 5c 1e 15 7c 62  |@....'.w...\..|b|
+000000b0  87 bd c5 8e b4 e6 6a 3f  be 37 9d c0 fe f7 65 8b  |......j?.7....e.|
+000000c0  b1 3a b8 b4 76 67 ca 58  1c f5 3f f1 10 7c 5b 57  |.:..vg.X..?..|[W|
+000000d0  90 e6 43 de d6 25                                 |..C..%|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 40 00 00 00 00 00  |..........@.....|
-00000010  00 00 00 00 00 00 00 00  00 00 00 29 51 0e ac ef  |...........)Q...|
-00000020  7b ef 53 95 05 d9 4f 28  97 a2 d6 ff 44 e1 0f fb  |{.S...O(....D...|
-00000030  ed e2 ac f4 6c 46 5f 91  07 ba f0 8f 37 37 8d 77  |....lF_.....77.w|
-00000040  7d a8 32 f5 4c f8 fd fc  86 ed 02 17 03 03 00 40  |}.2.L..........@|
+00000010  00 00 00 00 00 00 00 00  00 00 00 8b 11 9a 67 af  |..............g.|
+00000020  5b 0e c9 01 dc 76 e8 48  2f 40 5c 76 13 ca 28 63  |[....v.H/@\v..(c|
+00000030  a9 6d 3c 6b c1 d4 79 4d  39 17 55 a5 b9 0e b6 fd  |.m<k..yM9.U.....|
+00000040  9b 1a 8c 62 98 34 3c 85  b9 2b 40 17 03 03 00 40  |...b.4<..+@....@|
 00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000060  2d 65 8c 14 51 77 fb 37  61 b0 37 2b 74 8b 9e 8d  |-e..Qw.7a.7+t...|
-00000070  7e 72 c9 af 46 eb 05 72  8a b4 42 dc e9 6c df 01  |~r..F..r..B..l..|
-00000080  d2 c6 eb 48 f9 a9 a1 fd  6f 58 b2 76 95 13 df 29  |...H....oX.v...)|
+00000060  5e 82 20 cb bc 9a fd 36  13 3d aa 1b d6 72 df cb  |^. ....6.=...r..|
+00000070  09 e1 2f 85 6c 99 12 36  73 f3 c7 44 47 d7 60 19  |../.l..6s..DG.`.|
+00000080  2e 59 23 7d fa 16 b9 64  40 ed 96 79 66 b7 97 4c  |.Y#}...d@..yf..L|
 00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
-000000a0  00 00 00 00 00 81 a1 ed  82 f3 3d d4 ea af 32 0d  |..........=...2.|
-000000b0  b2 b4 ab 7e 94 1b 88 95  8b 72 22 57 b1 35 96 12  |...~.....r"W.5..|
-000000c0  45 57 68 d7 dc                                    |EWh..|
+000000a0  00 00 00 00 00 88 a2 85  5b 80 7d ee 4a 63 be da  |........[.}.Jc..|
+000000b0  e4 8f cd 6f 1d f4 03 da  ee 7c 29 2b d0 2d 3e 1c  |...o.....|)+.->.|
+000000c0  b2 ea 47 71 1f                                    |..Gq.|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv12-X25519 b/libgo/go/crypto/tls/testdata/Server-TLSv12-X25519
index ca3e49b..c196336 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv12-X25519
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv12-X25519
@@ -1,7 +1,7 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 8f 01 00 00  8b 03 03 48 6b c4 66 fd  |...........Hk.f.|
-00000010  74 9f 73 e7 c8 4c 12 5b  6a e0 3d a6 5b ed f7 78  |t.s..L.[j.=.[..x|
-00000020  f1 93 b3 1b 1f ee 2e bc  85 f7 4e 00 00 04 c0 2f  |..........N..../|
+00000000  16 03 01 00 8f 01 00 00  8b 03 03 5d ff d6 27 db  |...........]..'.|
+00000010  3b e5 2b 79 3a a6 cf 75  3d f7 c9 d9 0a d4 8c b2  |;.+y:..u=.......|
+00000020  af 3c 29 84 65 a2 d6 98  52 e2 eb 00 00 04 c0 2f  |.<).e...R....../|
 00000030  00 ff 01 00 00 5e 00 00  00 0e 00 0c 00 00 09 31  |.....^.........1|
 00000040  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000050  00 0a 00 04 00 02 00 1d  00 16 00 00 00 17 00 00  |................|
@@ -10,72 +10,73 @@
 00000080  06 01 03 03 02 03 03 01  02 01 03 02 02 02 04 02  |................|
 00000090  05 02 06 02                                       |....|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 31 02 00 00  2d 03 03 00 00 00 00 00  |....1...-.......|
+00000000  16 03 03 00 37 02 00 00  33 03 03 00 00 00 00 00  |....7...3.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000020  00 00 00 44 4f 57 4e 47  52 44 01 00 c0 2f 00 00  |...DOWNGRD.../..|
-00000030  05 ff 01 00 01 00 16 03  03 02 59 0b 00 02 55 00  |..........Y...U.|
-00000040  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
-00000050  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
-00000060  09 2a 86 48 86 f7 0d 01  01 0b 05 00 30 1f 31 0b  |.*.H........0.1.|
-00000070  30 09 06 03 55 04 0a 13  02 47 6f 31 10 30 0e 06  |0...U....Go1.0..|
-00000080  03 55 04 03 13 07 47 6f  20 52 6f 6f 74 30 1e 17  |.U....Go Root0..|
-00000090  0d 31 36 30 31 30 31 30  30 30 30 30 30 5a 17 0d  |.160101000000Z..|
-000000a0  32 35 30 31 30 31 30 30  30 30 30 30 5a 30 1a 31  |250101000000Z0.1|
-000000b0  0b 30 09 06 03 55 04 0a  13 02 47 6f 31 0b 30 09  |.0...U....Go1.0.|
-000000c0  06 03 55 04 03 13 02 47  6f 30 81 9f 30 0d 06 09  |..U....Go0..0...|
-000000d0  2a 86 48 86 f7 0d 01 01  01 05 00 03 81 8d 00 30  |*.H............0|
-000000e0  81 89 02 81 81 00 db 46  7d 93 2e 12 27 06 48 bc  |.......F}...'.H.|
-000000f0  06 28 21 ab 7e c4 b6 a2  5d fe 1e 52 45 88 7a 36  |.(!.~...]..RE.z6|
-00000100  47 a5 08 0d 92 42 5b c2  81 c0 be 97 79 98 40 fb  |G....B[.....y.@.|
-00000110  4f 6d 14 fd 2b 13 8b c2  a5 2e 67 d8 d4 09 9e d6  |Om..+.....g.....|
-00000120  22 38 b7 4a 0b 74 73 2b  c2 34 f1 d1 93 e5 96 d9  |"8.J.ts+.4......|
-00000130  74 7b f3 58 9f 6c 61 3c  c0 b0 41 d4 d9 2b 2b 24  |t{.X.la<..A..++$|
-00000140  23 77 5b 1c 3b bd 75 5d  ce 20 54 cf a1 63 87 1d  |#w[.;.u]. T..c..|
-00000150  1e 24 c4 f3 1d 1a 50 8b  aa b6 14 43 ed 97 a7 75  |.$....P....C...u|
-00000160  62 f4 14 c8 52 d7 02 03  01 00 01 a3 81 93 30 81  |b...R.........0.|
-00000170  90 30 0e 06 03 55 1d 0f  01 01 ff 04 04 03 02 05  |.0...U..........|
-00000180  a0 30 1d 06 03 55 1d 25  04 16 30 14 06 08 2b 06  |.0...U.%..0...+.|
-00000190  01 05 05 07 03 01 06 08  2b 06 01 05 05 07 03 02  |........+.......|
-000001a0  30 0c 06 03 55 1d 13 01  01 ff 04 02 30 00 30 19  |0...U.......0.0.|
-000001b0  06 03 55 1d 0e 04 12 04  10 9f 91 16 1f 43 43 3e  |..U..........CC>|
-000001c0  49 a6 de 6d b6 80 d7 9f  60 30 1b 06 03 55 1d 23  |I..m....`0...U.#|
-000001d0  04 14 30 12 80 10 48 13  49 4d 13 7e 16 31 bb a3  |..0...H.IM.~.1..|
-000001e0  01 d5 ac ab 6e 7b 30 19  06 03 55 1d 11 04 12 30  |....n{0...U....0|
-000001f0  10 82 0e 65 78 61 6d 70  6c 65 2e 67 6f 6c 61 6e  |...example.golan|
-00000200  67 30 0d 06 09 2a 86 48  86 f7 0d 01 01 0b 05 00  |g0...*.H........|
-00000210  03 81 81 00 9d 30 cc 40  2b 5b 50 a0 61 cb ba e5  |.....0.@+[P.a...|
-00000220  53 58 e1 ed 83 28 a9 58  1a a9 38 a4 95 a1 ac 31  |SX...(.X..8....1|
-00000230  5a 1a 84 66 3d 43 d3 2d  d9 0b f2 97 df d3 20 64  |Z..f=C.-...... d|
-00000240  38 92 24 3a 00 bc cf 9c  7d b7 40 20 01 5f aa d3  |8.$:....}.@ ._..|
-00000250  16 61 09 a2 76 fd 13 c3  cc e1 0c 5c ee b1 87 82  |.a..v......\....|
-00000260  f1 6c 04 ed 73 bb b3 43  77 8d 0c 1c f1 0f a1 d8  |.l..s..Cw.......|
-00000270  40 83 61 c9 4c 72 2b 9d  ae db 46 06 06 4d f4 c1  |@.a.Lr+...F..M..|
-00000280  b3 3e c0 d1 bd 42 d4 db  fe 3d 13 60 84 5c 21 d3  |.>...B...=.`.\!.|
-00000290  3b e9 fa e7 16 03 03 00  ac 0c 00 00 a8 03 00 1d  |;...............|
-000002a0  20 2f e5 7d a3 47 cd 62  43 15 28 da ac 5f bb 29  | /.}.G.bC.(.._.)|
-000002b0  07 30 ff f6 84 af c4 cf  c2 ed 90 99 5f 58 cb 3b  |.0.........._X.;|
-000002c0  74 04 01 00 80 6f 80 d8  15 ba df d3 5d d9 71 5f  |t....o......].q_|
-000002d0  25 f0 4f 03 1f 62 11 f4  33 91 34 08 6e d0 49 b9  |%.O..b..3.4.n.I.|
-000002e0  45 a6 37 85 73 36 c6 e7  45 c0 63 c9 66 0f b1 ae  |E.7.s6..E.c.f...|
-000002f0  86 33 b6 2a 24 d3 87 39  c8 62 da 0b 5d ae b0 74  |.3.*$..9.b..]..t|
-00000300  0d b9 36 6b 1b 97 86 d8  65 fa 46 75 6f ef d9 87  |..6k....e.Fuo...|
-00000310  6d b9 91 bb dc 47 42 23  c8 70 2a ba 65 0b 77 df  |m....GB#.p*.e.w.|
-00000320  57 6d 89 22 d8 36 f5 69  14 bc e1 c7 4c 80 22 0a  |Wm.".6.i....L.".|
-00000330  53 11 90 e0 61 30 48 29  2d 7c cf 17 94 a8 47 77  |S...a0H)-|....Gw|
-00000340  24 17 21 ec 04 16 03 03  00 04 0e 00 00 00        |$.!...........|
+00000030  0b ff 01 00 01 00 00 0b  00 02 01 00 16 03 03 02  |................|
+00000040  59 0b 00 02 55 00 02 52  00 02 4f 30 82 02 4b 30  |Y...U..R..O0..K0|
+00000050  82 01 b4 a0 03 02 01 02  02 09 00 e8 f0 9d 3f e2  |..............?.|
+00000060  5b ea a6 30 0d 06 09 2a  86 48 86 f7 0d 01 01 0b  |[..0...*.H......|
+00000070  05 00 30 1f 31 0b 30 09  06 03 55 04 0a 13 02 47  |..0.1.0...U....G|
+00000080  6f 31 10 30 0e 06 03 55  04 03 13 07 47 6f 20 52  |o1.0...U....Go R|
+00000090  6f 6f 74 30 1e 17 0d 31  36 30 31 30 31 30 30 30  |oot0...160101000|
+000000a0  30 30 30 5a 17 0d 32 35  30 31 30 31 30 30 30 30  |000Z..2501010000|
+000000b0  30 30 5a 30 1a 31 0b 30  09 06 03 55 04 0a 13 02  |00Z0.1.0...U....|
+000000c0  47 6f 31 0b 30 09 06 03  55 04 03 13 02 47 6f 30  |Go1.0...U....Go0|
+000000d0  81 9f 30 0d 06 09 2a 86  48 86 f7 0d 01 01 01 05  |..0...*.H.......|
+000000e0  00 03 81 8d 00 30 81 89  02 81 81 00 db 46 7d 93  |.....0.......F}.|
+000000f0  2e 12 27 06 48 bc 06 28  21 ab 7e c4 b6 a2 5d fe  |..'.H..(!.~...].|
+00000100  1e 52 45 88 7a 36 47 a5  08 0d 92 42 5b c2 81 c0  |.RE.z6G....B[...|
+00000110  be 97 79 98 40 fb 4f 6d  14 fd 2b 13 8b c2 a5 2e  |..y.@.Om..+.....|
+00000120  67 d8 d4 09 9e d6 22 38  b7 4a 0b 74 73 2b c2 34  |g....."8.J.ts+.4|
+00000130  f1 d1 93 e5 96 d9 74 7b  f3 58 9f 6c 61 3c c0 b0  |......t{.X.la<..|
+00000140  41 d4 d9 2b 2b 24 23 77  5b 1c 3b bd 75 5d ce 20  |A..++$#w[.;.u]. |
+00000150  54 cf a1 63 87 1d 1e 24  c4 f3 1d 1a 50 8b aa b6  |T..c...$....P...|
+00000160  14 43 ed 97 a7 75 62 f4  14 c8 52 d7 02 03 01 00  |.C...ub...R.....|
+00000170  01 a3 81 93 30 81 90 30  0e 06 03 55 1d 0f 01 01  |....0..0...U....|
+00000180  ff 04 04 03 02 05 a0 30  1d 06 03 55 1d 25 04 16  |.......0...U.%..|
+00000190  30 14 06 08 2b 06 01 05  05 07 03 01 06 08 2b 06  |0...+.........+.|
+000001a0  01 05 05 07 03 02 30 0c  06 03 55 1d 13 01 01 ff  |......0...U.....|
+000001b0  04 02 30 00 30 19 06 03  55 1d 0e 04 12 04 10 9f  |..0.0...U.......|
+000001c0  91 16 1f 43 43 3e 49 a6  de 6d b6 80 d7 9f 60 30  |...CC>I..m....`0|
+000001d0  1b 06 03 55 1d 23 04 14  30 12 80 10 48 13 49 4d  |...U.#..0...H.IM|
+000001e0  13 7e 16 31 bb a3 01 d5  ac ab 6e 7b 30 19 06 03  |.~.1......n{0...|
+000001f0  55 1d 11 04 12 30 10 82  0e 65 78 61 6d 70 6c 65  |U....0...example|
+00000200  2e 67 6f 6c 61 6e 67 30  0d 06 09 2a 86 48 86 f7  |.golang0...*.H..|
+00000210  0d 01 01 0b 05 00 03 81  81 00 9d 30 cc 40 2b 5b  |...........0.@+[|
+00000220  50 a0 61 cb ba e5 53 58  e1 ed 83 28 a9 58 1a a9  |P.a...SX...(.X..|
+00000230  38 a4 95 a1 ac 31 5a 1a  84 66 3d 43 d3 2d d9 0b  |8....1Z..f=C.-..|
+00000240  f2 97 df d3 20 64 38 92  24 3a 00 bc cf 9c 7d b7  |.... d8.$:....}.|
+00000250  40 20 01 5f aa d3 16 61  09 a2 76 fd 13 c3 cc e1  |@ ._...a..v.....|
+00000260  0c 5c ee b1 87 82 f1 6c  04 ed 73 bb b3 43 77 8d  |.\.....l..s..Cw.|
+00000270  0c 1c f1 0f a1 d8 40 83  61 c9 4c 72 2b 9d ae db  |......@.a.Lr+...|
+00000280  46 06 06 4d f4 c1 b3 3e  c0 d1 bd 42 d4 db fe 3d  |F..M...>...B...=|
+00000290  13 60 84 5c 21 d3 3b e9  fa e7 16 03 03 00 ac 0c  |.`.\!.;.........|
+000002a0  00 00 a8 03 00 1d 20 2f  e5 7d a3 47 cd 62 43 15  |...... /.}.G.bC.|
+000002b0  28 da ac 5f bb 29 07 30  ff f6 84 af c4 cf c2 ed  |(.._.).0........|
+000002c0  90 99 5f 58 cb 3b 74 08  04 00 80 73 d6 a4 35 5f  |.._X.;t....s..5_|
+000002d0  3f 46 ad de 81 13 a8 d9  21 17 25 37 61 cb 62 0d  |?F......!.%7a.b.|
+000002e0  e2 bf 95 51 0e 9e e7 b1  ab bc be f6 ec 80 b1 f4  |...Q............|
+000002f0  3e 9c 69 3f c8 1e a4 02  82 fd 57 01 e7 0c 18 be  |>.i?......W.....|
+00000300  c6 1b 01 68 cb ef dc d8  16 92 fb 1b 07 fd 98 f8  |...h............|
+00000310  00 77 a9 8e 71 2a e0 6c  68 d5 83 f9 36 c3 3b 99  |.w..q*.lh...6.;.|
+00000320  44 98 a0 96 00 1a 02 95  c5 7c ea ae 51 81 89 94  |D........|..Q...|
+00000330  57 b6 37 c5 88 56 9f 49  bf 36 26 48 08 36 a1 69  |W.7..V.I.6&H.6.i|
+00000340  48 a2 c4 b2 6f 0f 43 70  91 1e 8a 16 03 03 00 04  |H...o.Cp........|
+00000350  0e 00 00 00                                       |....|
 >>> Flow 3 (client to server)
-00000000  16 03 03 00 25 10 00 00  21 20 a0 e5 33 b9 5e e5  |....%...! ..3.^.|
-00000010  11 68 48 53 f1 06 5b ea  c7 2b 21 60 d1 ec e4 aa  |.hHS..[..+!`....|
-00000020  15 b9 38 bb c5 4d e4 c7  cf 17 14 03 03 00 01 01  |..8..M..........|
-00000030  16 03 03 00 28 41 1f 89  64 4d bb 36 48 36 97 d7  |....(A..dM.6H6..|
-00000040  1c 9c 44 9b 60 77 1e 73  87 7c f5 47 e4 e2 cd f8  |..D.`w.s.|.G....|
-00000050  fc 76 fe f3 38 34 4f ab  4a ce 55 66 6e           |.v..84O.J.Ufn|
+00000000  16 03 03 00 25 10 00 00  21 20 0a 1b 78 c4 bb eb  |....%...! ..x...|
+00000010  a4 01 33 3b 69 95 c2 06  5d c9 3e b3 13 51 4b 93  |..3;i...].>..QK.|
+00000020  5e 3c 3e a7 42 12 22 e8  7e 49 14 03 03 00 01 01  |^<>.B.".~I......|
+00000030  16 03 03 00 28 fc c7 a1  45 50 e0 fe 27 fd ac a4  |....(...EP..'...|
+00000040  d8 a2 c6 54 df e1 d3 6f  e7 d8 45 a6 57 16 2f 1f  |...T...o..E.W./.|
+00000050  cf 89 26 c6 0a c3 4f 63  df ac bc c9 79           |..&...Oc....y|
 >>> Flow 4 (server to client)
 00000000  14 03 03 00 01 01 16 03  03 00 28 00 00 00 00 00  |..........(.....|
-00000010  00 00 00 44 d3 59 7d fc  8a 85 c2 67 f6 b2 6c 43  |...D.Y}....g..lC|
-00000020  5a 77 c0 96 a4 69 0f ec  f6 fa 27 00 4c 04 e1 23  |Zw...i....'.L..#|
-00000030  c5 1e d9 17 03 03 00 25  00 00 00 00 00 00 00 01  |.......%........|
-00000040  3f 7f d6 e8 bb 6c 7f 1c  d2 97 38 88 15 40 9c e5  |?....l....8..@..|
-00000050  1f 0b ac 83 e7 8b 57 0d  6b 62 22 0b 8e 15 03 03  |......W.kb".....|
-00000060  00 1a 00 00 00 00 00 00  00 02 d8 e7 53 15 ab a7  |............S...|
-00000070  e4 62 10 fd 48 be f5 c8  09 98 92 ad              |.b..H.......|
+00000010  00 00 00 37 25 28 76 4e  31 dd 5e b0 5b 39 87 fc  |...7%(vN1.^.[9..|
+00000020  0f 10 3c bc 6d 12 9a dd  59 89 0b 09 bc f2 2c d8  |..<.m...Y.....,.|
+00000030  05 a7 77 17 03 03 00 25  00 00 00 00 00 00 00 01  |..w....%........|
+00000040  fe 79 9d dd d9 e3 bc 48  47 65 30 64 c7 74 82 0a  |.y.....HGe0d.t..|
+00000050  9f b7 45 a2 62 40 b5 dd  79 b9 ce 06 83 15 03 03  |..E.b@..y.......|
+00000060  00 1a 00 00 00 00 00 00  00 02 58 ed 37 40 33 e4  |..........X.7@3.|
+00000070  75 f0 a6 fa 14 f5 6b 93  9e 54 f2 a4              |u.....k..T..|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv13-AES128-SHA256 b/libgo/go/crypto/tls/testdata/Server-TLSv13-AES128-SHA256
index 9e85403..a071f60 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv13-AES128-SHA256
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv13-AES128-SHA256
@@ -1,9 +1,9 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 dc 01 00 00  d8 03 03 8f 2d ec dc ac  |............-...|
-00000010  28 76 2d d2 5e b8 34 2f  3f b9 96 46 31 8a 12 d5  |(v-.^.4/?..F1...|
-00000020  6a 9f a0 bf 11 00 3e d1  4c ba 17 20 72 a7 88 94  |j.....>.L.. r...|
-00000030  ad d2 b6 e8 86 d8 34 45  42 44 b7 36 50 9b 64 36  |......4EBD.6P.d6|
-00000040  de 03 b0 e5 99 8b f9 5a  67 5b f6 72 00 04 13 01  |.......Zg[.r....|
+00000000  16 03 01 00 dc 01 00 00  d8 03 03 5f b5 79 18 5f  |..........._.y._|
+00000010  d2 f8 b0 fc da 39 90 af  e1 ba 04 b5 70 86 c3 6b  |.....9......p..k|
+00000020  ba b4 87 e3 81 9a 86 02  9b 26 44 20 21 e3 5b 03  |.........&D !.[.|
+00000030  0d 0a 6c 1f 71 ea b4 4c  56 aa b6 d1 e8 91 d6 7b  |..l.q..LV......{|
+00000040  59 12 63 af db d2 69 80  cd 5f 62 22 00 04 13 01  |Y.c...i.._b"....|
 00000050  00 ff 01 00 00 8b 00 00  00 0e 00 0c 00 00 09 31  |...............1|
 00000060  32 37 2e 30 2e 30 2e 31  00 0b 00 04 03 00 01 02  |27.0.0.1........|
 00000070  00 0a 00 0c 00 0a 00 1d  00 17 00 1e 00 19 00 18  |................|
@@ -11,90 +11,90 @@
 00000090  05 03 06 03 08 07 08 08  08 09 08 0a 08 0b 08 04  |................|
 000000a0  08 05 08 06 04 01 05 01  06 01 00 2b 00 03 02 03  |...........+....|
 000000b0  04 00 2d 00 02 01 01 00  33 00 26 00 24 00 1d 00  |..-.....3.&.$...|
-000000c0  20 52 35 32 79 0e bf 01  91 5a b1 be 9b ff bf f4  | R52y....Z......|
-000000d0  72 13 1a 3d a6 a8 15 9f  ad c3 a9 b6 32 79 84 32  |r..=........2y.2|
-000000e0  71                                                |q|
+000000c0  20 57 12 bc 06 e0 46 c7  75 43 b8 af f9 c1 f6 b8  | W....F.uC......|
+000000d0  e4 1e 13 6b 02 07 23 d2  e6 89 ec 18 ab c0 9f ae  |...k..#.........|
+000000e0  69                                                |i|
 >>> Flow 2 (server to client)
 00000000  16 03 03 00 7a 02 00 00  76 03 03 00 00 00 00 00  |....z...v.......|
 00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000020  00 00 00 00 00 00 00 00  00 00 00 20 72 a7 88 94  |........... r...|
-00000030  ad d2 b6 e8 86 d8 34 45  42 44 b7 36 50 9b 64 36  |......4EBD.6P.d6|
-00000040  de 03 b0 e5 99 8b f9 5a  67 5b f6 72 13 01 00 00  |.......Zg[.r....|
+00000020  00 00 00 00 00 00 00 00  00 00 00 20 21 e3 5b 03  |........... !.[.|
+00000030  0d 0a 6c 1f 71 ea b4 4c  56 aa b6 d1 e8 91 d6 7b  |..l.q..LV......{|
+00000040  59 12 63 af db d2 69 80  cd 5f 62 22 13 01 00 00  |Y.c...i.._b"....|
 00000050  2e 00 2b 00 02 03 04 00  33 00 24 00 1d 00 20 2f  |..+.....3.$... /|
 00000060  e5 7d a3 47 cd 62 43 15  28 da ac 5f bb 29 07 30  |.}.G.bC.(.._.).0|
 00000070  ff f6 84 af c4 cf c2 ed  90 99 5f 58 cb 3b 74 14  |.........._X.;t.|
-00000080  03 03 00 01 01 17 03 03  00 17 2a 27 a8 a8 aa f7  |..........*'....|
-00000090  7f c4 74 12 f2 f5 b3 46  e3 fc 9f c6 8e 4d 81 4c  |..t....F.....M.L|
-000000a0  f2 17 03 03 02 6d 4c ad  3d 6f 2b c3 22 fc e0 3f  |.....mL.=o+."..?|
-000000b0  74 c2 f7 20 1a 37 ff 42  3e 5c c7 7e 0a 27 48 88  |t.. .7.B>\.~.'H.|
-000000c0  23 77 d3 e9 96 d0 6c 44  67 e0 13 03 06 e3 f8 70  |#w....lDg......p|
-000000d0  c0 e1 56 8f a3 18 58 8a  d0 a0 f1 96 0a 4b 47 f8  |..V...X......KG.|
-000000e0  a0 51 06 82 03 09 e8 82  e7 c1 91 5a fb 2e a4 a7  |.Q.........Z....|
-000000f0  34 19 d8 c1 86 0d 56 e9  74 f1 28 7a 7e bf 50 30  |4.....V.t.(z~.P0|
-00000100  e1 29 43 fa d9 67 6f d1  94 4c 7f 06 b9 b7 5d 6c  |.)C..go..L....]l|
-00000110  f1 a4 dc 48 53 de 7e d6  c2 8a 32 a3 78 94 2d 55  |...HS.~...2.x.-U|
-00000120  76 0d 3c b8 93 76 98 70  36 c2 2e a2 b3 8c ec 32  |v.<..v.p6......2|
-00000130  43 50 06 f8 76 28 19 3b  a3 51 64 26 24 fa 97 43  |CP..v(.;.Qd&$..C|
-00000140  65 12 aa 2f 55 c3 30 33  9a 88 dc 4c 86 e5 13 aa  |e../U.03...L....|
-00000150  4b 4d 85 e6 67 0c 87 61  26 cd 1b 7b 80 67 87 60  |KM..g..a&..{.g.`|
-00000160  00 0d 7a eb 9a e4 d2 a6  72 b5 66 f4 5b 9c 2f 42  |..z.....r.f.[./B|
-00000170  c1 4b d3 cf 9f e7 be bf  a4 12 57 d4 15 83 ce 61  |.K........W....a|
-00000180  c0 29 71 ed d5 c3 e3 68  a0 c7 02 ed 94 d7 1f b2  |.)q....h........|
-00000190  11 c1 38 67 a6 42 d2 23  ae b8 16 ed 69 92 91 57  |..8g.B.#....i..W|
-000001a0  ca b6 fd 93 8f 32 ab 2d  8b 74 f8 b0 bb 5a a0 16  |.....2.-.t...Z..|
-000001b0  72 92 6e 9e 10 46 3a 7d  2f 55 de 0c d4 9d b6 d0  |r.n..F:}/U......|
-000001c0  e1 f6 2d 10 de 97 c1 28  c8 d4 63 4a 5b f9 08 c7  |..-....(..cJ[...|
-000001d0  8b 28 65 0b 07 e2 62 82  09 3e d2 dd 82 a6 72 79  |.(e...b..>....ry|
-000001e0  1d 59 ef 58 87 5a b6 b1  38 20 3c 4c 55 c0 9d fb  |.Y.X.Z..8 <LU...|
-000001f0  1c fe 71 83 8b 64 ae 24  7e 16 4d 96 04 30 d1 33  |..q..d.$~.M..0.3|
-00000200  6c f5 d4 f0 ab d6 0e f5  e4 2a 83 18 59 21 4c ec  |l........*..Y!L.|
-00000210  a3 35 1e 3f 84 4b 09 04  28 4f 84 80 1a 5a ca 37  |.5.?.K..(O...Z.7|
-00000220  0a 24 f0 59 7d 89 68 6c  a4 58 fb bc f9 19 c5 ee  |.$.Y}.hl.X......|
-00000230  1b d7 db cb d7 70 93 a8  c4 4c 57 14 cc b3 a9 55  |.....p...LW....U|
-00000240  67 00 ba d8 0e e1 75 d5  8c c4 28 92 b7 c1 53 3c  |g.....u...(...S<|
-00000250  d7 0f 50 5c e6 1f cf f5  fe 71 b8 71 45 f2 c2 fc  |..P\.....q.qE...|
-00000260  9f 76 d1 5b 08 fe 94 d1  a1 48 cb fd 7e c5 68 f5  |.v.[.....H..~.h.|
-00000270  d7 71 6a fe f1 0e df 0d  b6 51 9a 54 8f 9a 47 98  |.qj......Q.T..G.|
-00000280  90 bb ed 59 72 93 5f 67  96 66 5b b2 9e 0d a6 ac  |...Yr._g.f[.....|
-00000290  4a 14 c9 77 05 33 49 38  b1 7f d1 3c c3 f1 05 a8  |J..w.3I8...<....|
-000002a0  d5 09 63 21 8b 5f a8 63  41 f0 d1 77 81 35 a8 e3  |..c!._.cA..w.5..|
-000002b0  e2 e4 dd 5f 56 f2 ed 14  91 e8 cd 92 c2 55 f7 c3  |..._V........U..|
-000002c0  47 cd 79 d3 6a 41 e7 a5  44 3f d1 12 72 de 58 08  |G.y.jA..D?..r.X.|
-000002d0  44 92 fb 71 35 e8 ec d7  4b 16 e1 1e 94 5a 90 fe  |D..q5...K....Z..|
-000002e0  a4 b6 e6 4f b6 2b c6 14  bf ea 45 69 16 2c 7c 4f  |...O.+....Ei.,|O|
-000002f0  fc fb 08 8f 51 33 de 81  4c cf 3f b2 f2 62 3d e5  |....Q3..L.?..b=.|
-00000300  a6 d3 af 40 0e 77 00 53  71 e3 2b d5 92 b2 b7 7c  |...@.w.Sq.+....||
-00000310  42 51 8b 17 03 03 00 99  ab ac 39 ac 82 91 a9 01  |BQ........9.....|
-00000320  4a 8f 94 ed 4f 5d 5b 35  9f 88 b9 53 e8 35 1d d6  |J...O][5...S.5..|
-00000330  2f 75 74 48 e9 2b cc b7  0c 1f 3f 4f ee 67 30 3b  |/utH.+....?O.g0;|
-00000340  4f 2a c2 a3 9c ff 59 44  1f 31 96 a8 d7 b0 72 63  |O*....YD.1....rc|
-00000350  e9 64 38 ff 63 be 43 3b  40 6d dd ec 5e d6 c1 b8  |.d8.c.C;@m..^...|
-00000360  e0 1b ab b3 1c 5e a9 b7  31 5d e3 e9 e9 33 d3 44  |.....^..1]...3.D|
-00000370  f0 97 1f 2f 71 90 bf 7a  f5 f3 32 0a 97 26 93 44  |.../q..z..2..&.D|
-00000380  38 bd 5f 13 d8 4c 37 a7  12 a3 1c 1e 04 c3 21 b2  |8._..L7.......!.|
-00000390  b0 f6 bd ed a7 fa e4 1a  fb 9f 76 54 df c5 16 c0  |..........vT....|
-000003a0  85 7a 75 90 95 c6 38 80  d6 1a 05 b7 01 63 63 29  |.zu...8......cc)|
-000003b0  9b 17 03 03 00 35 29 c0  cb 6c 42 d9 ed 17 3d aa  |.....5)..lB...=.|
-000003c0  b5 05 ff 84 3c ed 0b 6f  03 a9 47 b6 7b cb a8 a5  |....<..o..G.{...|
-000003d0  a0 45 1c 60 3e 33 1e 24  6f 65 37 40 f7 98 41 5f  |.E.`>3.$oe7@..A_|
-000003e0  43 3a dd 65 3d a7 b4 6c  bf 21 f4 17 03 03 00 93  |C:.e=..l.!......|
-000003f0  1a a6 3b b4 be dd c0 64  5f ae 2d 05 70 3b 5e fc  |..;....d_.-.p;^.|
-00000400  83 e0 ad 5b d0 b3 32 bc  f9 98 b2 f5 9f 16 14 52  |...[..2........R|
-00000410  37 2c 72 90 c1 be 97 49  a3 4d 10 97 0e d0 ec ff  |7,r....I.M......|
-00000420  98 50 87 90 ba f2 f0 81  08 14 ad f6 f9 3b d0 b8  |.P...........;..|
-00000430  f8 c2 62 96 d1 4b 4f 5a  96 43 9f b6 96 6b 59 b8  |..b..KOZ.C...kY.|
-00000440  f5 cc cf bc 79 1a a6 6e  c6 7d 06 10 8f a0 21 39  |....y..n.}....!9|
-00000450  67 5f 36 37 19 fa 0f 56  00 36 16 10 a2 80 9f 01  |g_67...V.6......|
-00000460  0a 68 2d 50 a1 fc 67 c5  00 24 36 54 c2 5a 93 a4  |.h-P..g..$6T.Z..|
-00000470  0a 6c cd aa 3f 22 bf ef  f4 80 32 6a 14 e1 1e 6b  |.l..?"....2j...k|
-00000480  8a 38 40                                          |.8@|
+00000080  03 03 00 01 01 17 03 03  00 17 be 8f 95 d9 22 d7  |..............".|
+00000090  f7 ff 75 78 b6 9c bc 93  23 2f 76 62 c6 cd c6 92  |..ux....#/vb....|
+000000a0  fe 17 03 03 02 6d 31 54  c9 32 d0 38 53 8f f0 15  |.....m1T.2.8S...|
+000000b0  03 42 16 39 71 61 f9 17  f2 da c5 2e 4c 19 c3 30  |.B.9qa......L..0|
+000000c0  d5 c6 b8 ea 5d 3b 47 1b  d9 20 31 64 ab 5c f3 00  |....];G.. 1d.\..|
+000000d0  43 5b e7 3b 36 69 12 c9  3b 3d e7 4f 91 72 e4 29  |C[.;6i..;=.O.r.)|
+000000e0  93 54 65 50 88 07 b9 e2  ed 5e 18 f7 00 0a 49 e5  |.TeP.....^....I.|
+000000f0  19 cc d8 e5 b2 c5 f6 bd  34 7a 7f e2 f1 7c 9d a0  |........4z...|..|
+00000100  d6 0c 50 4f 80 8a c5 a1  fe b8 2e 54 7c 0c ae 48  |..PO.......T|..H|
+00000110  c5 ff 46 d9 45 e6 c0 df  61 74 fc d5 e8 ec e1 84  |..F.E...at......|
+00000120  0b c8 df 73 77 e4 9f 13  e5 52 e5 0b d8 9f 65 b7  |...sw....R....e.|
+00000130  89 d5 04 74 f8 8d a6 2a  c7 a1 76 ff 27 85 6a bb  |...t...*..v.'.j.|
+00000140  ee 86 c9 38 5a 54 bc ac  bc ad 79 85 7c 26 65 c3  |...8ZT....y.|&e.|
+00000150  36 97 56 76 d2 4c 55 32  71 82 ec d1 81 22 46 9e  |6.Vv.LU2q...."F.|
+00000160  75 d8 55 a8 1e 61 10 c8  dc e8 c7 ad fe 96 0e 54  |u.U..a.........T|
+00000170  1c 79 0c 41 b9 98 b0 44  f8 45 6e c7 b3 41 68 2d  |.y.A...D.En..Ah-|
+00000180  ea 73 be 55 99 fe 88 02  e3 5d 0f f3 d1 70 9a 5e  |.s.U.....]...p.^|
+00000190  be e7 80 96 6c 94 7f 9f  ec 1c b6 24 28 ef 90 95  |....l......$(...|
+000001a0  d5 5b d4 7b 1b b1 a4 9c  66 09 11 23 ad f5 87 ee  |.[.{....f..#....|
+000001b0  0b 1f e5 d2 0e 57 16 e9  14 ae 0f 98 9b a1 bc 9e  |.....W..........|
+000001c0  68 dc d0 fb 76 aa c8 f2  bc e5 d3 ff e2 85 df 01  |h...v...........|
+000001d0  2f ad 72 78 85 0f f7 0a  64 a4 cd 61 2a e6 2b a3  |/.rx....d..a*.+.|
+000001e0  d5 4a c9 08 00 af 5c 6c  9d 35 e4 1e 7c 32 1a d0  |.J....\l.5..|2..|
+000001f0  f3 6d 73 16 9c c8 72 28  4b 67 cf d8 ff 2b 1e 33  |.ms...r(Kg...+.3|
+00000200  18 c4 ed c9 31 5d 6a 0f  c5 05 bf 08 eb 0b 44 05  |....1]j.......D.|
+00000210  83 49 40 d2 1f 7f 5c 08  ef 98 1f 09 f1 09 33 02  |.I@...\.......3.|
+00000220  56 04 66 53 69 93 ef 07  0d 8a e7 84 b5 03 b9 78  |V.fSi..........x|
+00000230  bb 52 84 3f bb 4e d3 f9  c4 8a 2a d1 59 02 59 36  |.R.?.N....*.Y.Y6|
+00000240  88 52 6a 9d 1f 7e c1 5b  a6 8a a4 cc 42 f4 44 59  |.Rj..~.[....B.DY|
+00000250  ca d2 fa 0e 09 5f 25 e5  cc 27 55 8b 16 b5 f1 62  |....._%..'U....b|
+00000260  aa f7 a9 bc 7a 36 fa 16  34 b7 ce 2d b8 bd 67 f0  |....z6..4..-..g.|
+00000270  75 15 17 c4 49 81 55 b1  5a e0 d2 b8 45 79 d0 16  |u...I.U.Z...Ey..|
+00000280  71 21 01 57 ad 10 48 1f  0d bf 43 da b7 c9 a8 93  |q!.W..H...C.....|
+00000290  88 af be 2d 65 a0 81 26  23 de fe e2 a3 9c f6 40  |...-e..&#......@|
+000002a0  96 f9 a1 21 0b fe 31 7f  24 ec 75 ae cf b0 8c a7  |...!..1.$.u.....|
+000002b0  fe f8 2f ee 60 65 72 5c  86 a6 45 22 11 55 62 29  |../.`er\..E".Ub)|
+000002c0  02 8b b5 ff 4b f8 73 71  3d 8c c3 37 68 2d 2c 24  |....K.sq=..7h-,$|
+000002d0  b7 dc be 5a 37 d8 25 3b  b6 16 e6 2a e9 80 48 0b  |...Z7.%;...*..H.|
+000002e0  77 be 05 35 b2 86 97 51  49 31 ac de 85 eb a9 a8  |w..5...QI1......|
+000002f0  74 1d 00 07 4c 1b 8c a5  ec 1b b5 7a 57 84 da 40  |t...L......zW..@|
+00000300  10 6c c9 ed b3 43 06 81  11 e2 84 3c 4c ae 22 6b  |.l...C.....<L."k|
+00000310  e6 96 dc 17 03 03 00 99  2b 4a 51 8f 5e c1 82 70  |........+JQ.^..p|
+00000320  e7 e2 ca 34 cb d1 24 c9  da 69 06 7c 75 d0 0f 16  |...4..$..i.|u...|
+00000330  cc 9c e1 26 60 d0 cc 18  16 18 15 f0 26 f8 d4 d7  |...&`.......&...|
+00000340  f8 81 77 0c 68 cd fe 7a  28 d6 32 60 29 c3 e2 87  |..w.h..z(.2`)...|
+00000350  9b 1c ad 3b 7d 42 31 23  74 61 f5 b7 28 5f 5a 8a  |...;}B1#ta..(_Z.|
+00000360  16 98 f8 74 01 63 7d 0a  2c 51 d7 5e 04 8b 2e 58  |...t.c}.,Q.^...X|
+00000370  c3 6f d7 4a 1e fa 55 84  8d a9 24 ef de 4c e3 2e  |.o.J..U...$..L..|
+00000380  44 2b 1f e8 b4 a2 6f cc  e6 a6 d2 1f fa 60 ab 20  |D+....o......`. |
+00000390  e0 06 8e 00 1a 24 57 50  93 e5 71 d0 cc 63 9b 60  |.....$WP..q..c.`|
+000003a0  f8 e9 c2 de 4b 65 b6 9a  3b dd 60 d6 fb 37 c7 3c  |....Ke..;.`..7.<|
+000003b0  e2 17 03 03 00 35 82 7c  22 13 69 48 00 19 51 5c  |.....5.|".iH..Q\|
+000003c0  9d 19 3b 1a 25 a9 b8 db  9b c3 25 40 c9 ed c7 dd  |..;.%.....%@....|
+000003d0  e6 31 e7 55 ed 48 f0 af  95 1b 0e ca 9a f4 7f 60  |.1.U.H.........`|
+000003e0  03 11 e8 51 57 5e df 4e  c2 ec 7a 17 03 03 00 93  |...QW^.N..z.....|
+000003f0  76 84 60 d6 f5 6f 27 c2  47 88 fa 80 78 a6 22 0a  |v.`..o'.G...x.".|
+00000400  16 a6 26 12 1b 14 6c 6f  40 10 ce 7c 7c 16 f9 64  |..&...lo@..||..d|
+00000410  e6 98 13 51 36 b0 41 d9  6d 9c fb ba 3e 59 9d 33  |...Q6.A.m...>Y.3|
+00000420  76 f0 23 23 27 94 df 2f  21 6a c0 a9 5a 3d af 41  |v.##'../!j..Z=.A|
+00000430  31 4d 9b d5 75 57 f1 a9  c5 57 2a 7a c7 1d b1 a7  |1M..uW...W*z....|
+00000440  15 a5 80 ae 63 f8 85 92  46 13 d2 31 26 62 7d 83  |....c...F..1&b}.|
+00000450  95 f9 97 9d e8 86 7d 09  f3 cc 30 b1 db 54 2a 8d  |......}...0..T*.|
+00000460  0f 04 da d9 cf 59 52 2a  e3 7d 64 20 f3 26 4a 2e  |.....YR*.}d .&J.|
+00000470  74 07 c5 2f 98 a2 f7 e1  53 01 e0 c2 3b c7 42 1b  |t../....S...;.B.|
+00000480  a0 48 12                                          |.H.|
 >>> Flow 3 (client to server)
-00000000  14 03 03 00 01 01 17 03  03 00 35 3c 0b 73 34 15  |..........5<.s4.|
-00000010  e0 fc da 7f 3a 12 a0 50  95 09 0c ec 6a d5 7b 55  |....:..P....j.{U|
-00000020  76 0f 7a 8e 25 e4 d2 b9  5f 5a 79 95 a5 a4 c6 9d  |v.z.%..._Zy.....|
-00000030  eb 0a ad 13 d1 97 a5 bd  c4 d0 1e ce 59 59 04 16  |............YY..|
+00000000  14 03 03 00 01 01 17 03  03 00 35 57 4a c4 5a c1  |..........5WJ.Z.|
+00000010  3a b9 ae f0 1d e8 8f 31  38 0e 64 9e 61 13 e6 b2  |:......18.d.a...|
+00000020  1b 02 aa b6 46 5a 50 97  07 93 86 13 dc 3d 76 6a  |....FZP......=vj|
+00000030  67 01 1b 18 9b 7e 21 b2  c1 d4 a5 25 22 4d 14 dc  |g....~!....%"M..|
 >>> Flow 4 (server to client)
-00000000  17 03 03 00 1e 9a 92 bf  83 9f 0b 36 66 2f 8e d5  |...........6f/..|
-00000010  69 74 a7 a2 20 bb b2 d5  ac e8 99 b1 e6 df 4d 03  |it.. .........M.|
-00000020  3e 9e 9c 17 03 03 00 13  7e 0c 85 34 9e 48 48 4a  |>.......~..4.HHJ|
-00000030  ce fa 96 dd 7b 7c 11 38  20 8d 33                 |....{|.8 .3|
+00000000  17 03 03 00 1e 61 63 5a  22 d2 e6 8e e8 8e 69 7d  |.....acZ".....i}|
+00000010  24 69 a5 b8 e3 59 98 ac  64 0b 34 6b 16 60 92 db  |$i...Y..d.4k.`..|
+00000020  6b 62 45 17 03 03 00 13  b7 12 c6 59 fe 23 f4 6c  |kbE........Y.#.l|
+00000030  a6 d3 8d 59 1b 40 60 72  d6 97 b4                 |...Y.@`r...|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv13-RSA-RSAPSS b/libgo/go/crypto/tls/testdata/Server-TLSv13-RSA-RSAPSS
index 21f57b7..8151fd4 100644
--- a/libgo/go/crypto/tls/testdata/Server-TLSv13-RSA-RSAPSS
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv13-RSA-RSAPSS
@@ -1,101 +1,16 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 c6 01 00 00  c2 03 03 39 95 ab cc 1c  |...........9....|
-00000010  64 13 9d 19 2e 3e 73 33  48 b1 a9 f7 88 14 5a 83  |d....>s3H.....Z.|
-00000020  19 f7 b5 08 8d e4 80 09  72 21 99 20 23 ad 4c 2c  |........r!. #.L,|
-00000030  66 84 1e e8 c3 0c 9f 66  19 76 df a3 e0 62 cd 7d  |f......f.v...b.}|
-00000040  95 85 70 4f 37 fb 39 58  50 b1 d5 7b 00 08 13 02  |..pO7.9XP..{....|
+00000000  16 03 01 00 c6 01 00 00  c2 03 03 6b 64 fe be 82  |...........kd...|
+00000010  d3 c7 f8 26 35 c1 7c 50  d0 a9 19 a5 1d 6b d5 1b  |...&5.|P.....k..|
+00000020  25 9b 47 fb 49 01 fc df  2e dc 8e 20 92 d0 73 81  |%.G.I...... ..s.|
+00000030  91 5a 8a f9 2a cf 29 c7  9d 43 b2 b0 7d b9 5a a3  |.Z..*.)..C..}.Z.|
+00000040  5f 74 53 a0 8e fe 4e 2e  83 0d 3b 0f 00 08 13 02  |_tS...N...;.....|
 00000050  13 03 13 01 00 ff 01 00  00 71 00 00 00 0e 00 0c  |.........q......|
 00000060  00 00 09 31 32 37 2e 30  2e 30 2e 31 00 0b 00 04  |...127.0.0.1....|
 00000070  03 00 01 02 00 0a 00 0c  00 0a 00 1d 00 17 00 1e  |................|
 00000080  00 19 00 18 00 16 00 00  00 17 00 00 00 0d 00 04  |................|
-00000090  00 02 08 04 00 2b 00 03  02 03 04 00 2d 00 02 01  |.....+......-...|
-000000a0  01 00 33 00 26 00 24 00  1d 00 20 be 29 89 8d 44  |..3.&.$... .)..D|
-000000b0  4d e5 51 88 7a 1a 56 52  a8 86 74 13 0e e9 a5 a7  |M.Q.z.VR..t.....|
-000000c0  b6 7f 38 b3 ef 62 e6 b0  c5 2a 0a                 |..8..b...*.|
+00000090  00 02 08 06 00 2b 00 03  02 03 04 00 2d 00 02 01  |.....+......-...|
+000000a0  01 00 33 00 26 00 24 00  1d 00 20 76 43 b3 ed 62  |..3.&.$... vC..b|
+000000b0  22 72 15 69 b5 5b fd 9c  ac 4a bd 36 4a 8d 3a 08  |"r.i.[...J.6J.:.|
+000000c0  9d a0 5e 10 e6 13 87 2b  41 51 66                 |..^....+AQf|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 7a 02 00 00  76 03 03 00 00 00 00 00  |....z...v.......|
-00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000020  00 00 00 00 00 00 00 00  00 00 00 20 23 ad 4c 2c  |........... #.L,|
-00000030  66 84 1e e8 c3 0c 9f 66  19 76 df a3 e0 62 cd 7d  |f......f.v...b.}|
-00000040  95 85 70 4f 37 fb 39 58  50 b1 d5 7b 13 02 00 00  |..pO7.9XP..{....|
-00000050  2e 00 2b 00 02 03 04 00  33 00 24 00 1d 00 20 2f  |..+.....3.$... /|
-00000060  e5 7d a3 47 cd 62 43 15  28 da ac 5f bb 29 07 30  |.}.G.bC.(.._.).0|
-00000070  ff f6 84 af c4 cf c2 ed  90 99 5f 58 cb 3b 74 14  |.........._X.;t.|
-00000080  03 03 00 01 01 17 03 03  00 17 49 c6 88 9c 3b 2f  |..........I...;/|
-00000090  3a 0a e6 8e 75 d0 39 11  ad 08 87 17 2c 14 96 28  |:...u.9.....,..(|
-000000a0  85 17 03 03 02 6d 2a d6  89 4d 5d f3 6c 28 97 dd  |.....m*..M].l(..|
-000000b0  4e 45 88 e8 90 a4 f3 45  86 cf 59 d6 61 6e 1a a7  |NE.....E..Y.an..|
-000000c0  b7 35 7e 9c 6e 11 19 c4  1b 89 b9 5a 7c aa 1f 96  |.5~.n......Z|...|
-000000d0  e2 36 6d 54 09 12 2f 28  12 20 a3 41 06 bd 44 3c  |.6mT../(. .A..D<|
-000000e0  73 be d3 8c 78 18 a1 63  ad f9 9d 41 20 5e 32 55  |s...x..c...A ^2U|
-000000f0  8e 18 c1 d8 b0 93 13 7e  88 a0 af 8a 59 e2 af 43  |.......~....Y..C|
-00000100  d2 82 66 ba c5 a1 97 94  e8 63 40 1b 8f c4 eb 49  |..f......c@....I|
-00000110  19 91 65 e9 54 d3 90 76  d6 f8 ff 15 20 31 3c 86  |..e.T..v.... 1<.|
-00000120  88 8a 43 be 77 a0 28 de  fa 9f d5 30 14 a8 35 2f  |..C.w.(....0..5/|
-00000130  5e ee 9d cf b5 69 d1 f5  f6 55 d1 1a 61 3f 4c a1  |^....i...U..a?L.|
-00000140  97 38 5b 87 7e ce 88 23  8a d0 bd fc 4b c5 da f7  |.8[.~..#....K...|
-00000150  25 6c 6c 0b ec 61 50 72  97 6b f7 fe 9b 5b 5a f9  |%ll..aPr.k...[Z.|
-00000160  59 19 71 10 74 2d 14 8c  1b 52 8b 39 1c 56 ea 7e  |Y.q.t-...R.9.V.~|
-00000170  7a c9 8f 7c bd db 1e c5  02 9f 42 8b 63 ee 13 52  |z..|......B.c..R|
-00000180  fe 46 40 de 7b 97 27 b0  16 87 75 96 c7 1c 88 5d  |.F@.{.'...u....]|
-00000190  2e 64 7f a8 df e0 16 b9  ee 27 7e b3 98 99 f7 4a  |.d.......'~....J|
-000001a0  83 05 78 bb 59 07 8e 1a  46 1d 0f 45 87 ae d9 ae  |..x.Y...F..E....|
-000001b0  6f 42 ed b1 72 14 8c 9d  33 72 95 ac 12 bb a0 20  |oB..r...3r..... |
-000001c0  56 a8 8a 23 e4 51 6a 89  f5 8e bc 55 5a e2 8d 78  |V..#.Qj....UZ..x|
-000001d0  84 24 55 99 cf 37 61 8c  7e 46 17 f3 26 ca 27 ec  |.$U..7a.~F..&.'.|
-000001e0  f4 04 f6 76 1d cf 82 0c  bd 85 82 81 06 f1 96 ce  |...v............|
-000001f0  78 54 6c eb a0 f8 cf 30  6a 10 17 08 e6 94 83 4f  |xTl....0j......O|
-00000200  56 34 80 ef ac fa ab e7  59 9e 6b f9 f8 38 76 cc  |V4......Y.k..8v.|
-00000210  3b 09 b0 16 3f 3f 5c d3  6a ad d9 2c 65 d8 ce b4  |;...??\.j..,e...|
-00000220  19 53 c4 c9 d1 82 e8 19  72 ec bc 85 ef 3a 6e e5  |.S......r....:n.|
-00000230  ba 3c f8 37 98 98 80 47  5f 47 4f cd ed f5 0e bc  |.<.7...G_GO.....|
-00000240  4e 14 a2 7d 8d 43 0b 18  ba 3b 10 50 e4 18 fc ac  |N..}.C...;.P....|
-00000250  0e 01 21 73 68 da 50 51  8a 64 b6 18 28 ca e3 a4  |..!sh.PQ.d..(...|
-00000260  aa d2 5c 28 ff 64 fd cb  28 00 db b1 5c bf 75 81  |..\(.d..(...\.u.|
-00000270  bb d2 8c df 5c 26 70 1d  d6 fe 7a 94 65 27 93 72  |....\&p...z.e'.r|
-00000280  bc ba 17 92 8f be 61 ec  f5 88 04 ed fb cc f3 5c  |......a........\|
-00000290  71 d0 a4 5d 13 a6 a3 82  89 e8 9e 1a 8e 31 fd 2f  |q..].........1./|
-000002a0  57 53 98 d5 1f c4 3f 8e  92 7f 1b 90 a3 ad 6c 96  |WS....?.......l.|
-000002b0  42 cc f2 f0 1c 8d 3f 31  fd b2 53 29 79 16 9a 96  |B.....?1..S)y...|
-000002c0  fd d6 fe d4 3f 13 aa 39  73 d4 73 6d 9a ff f6 db  |....?..9s.sm....|
-000002d0  52 0a 1e 76 71 0f d3 ee  de a8 b3 05 3b 24 c4 72  |R..vq.......;$.r|
-000002e0  67 78 f1 be df c5 c0 87  32 60 28 96 8e b2 2e 3f  |gx......2`(....?|
-000002f0  7d e9 aa b7 66 57 ee 67  e6 ac 70 da 60 ce c2 00  |}...fW.g..p.`...|
-00000300  55 2f 20 25 39 a5 5e b9  65 c3 00 63 c7 5a a9 31  |U/ %9.^.e..c.Z.1|
-00000310  de fe 65 17 03 03 00 99  95 83 6d be 56 ef 4f a3  |..e.......m.V.O.|
-00000320  96 5f a8 3d d5 a1 f3 8e  9a 8c 40 35 f4 12 2c 0a  |._.=......@5..,.|
-00000330  b3 02 3b d2 14 d8 a4 f1  12 01 be e1 8a 6b 5f 01  |..;..........k_.|
-00000340  71 de ac 70 e9 7a 90 78  2e 2a a8 29 64 20 85 dd  |q..p.z.x.*.)d ..|
-00000350  57 09 cf 48 29 d0 63 42  bc 9b ec 0c e2 2d 41 d0  |W..H).cB.....-A.|
-00000360  cb d8 68 46 b7 17 fc 1d  95 12 5a 4c c3 10 67 32  |..hF......ZL..g2|
-00000370  f7 7a 14 55 63 fb 57 6e  59 ee b6 66 b8 65 e1 37  |.z.Uc.WnY..f.e.7|
-00000380  e6 7c 6c 07 8b d1 84 80  01 11 ce 7f 20 f0 4d 42  |.|l......... .MB|
-00000390  a7 67 01 12 e6 b5 9b d4  6a fe 38 37 71 ca 60 d6  |.g......j.87q.`.|
-000003a0  12 d7 00 b5 26 c3 97 1d  9f 37 6a 82 31 ef c3 12  |....&....7j.1...|
-000003b0  bc 17 03 03 00 45 65 1e  cf 1f 1e 73 93 8d 66 54  |.....Ee....s..fT|
-000003c0  47 b0 73 9f d1 a4 9d 3b  b0 72 b4 f2 5f 06 e1 d2  |G.s....;.r.._...|
-000003d0  1f bb 3d 13 48 7c 7a e0  19 15 9f aa a5 ed 09 18  |..=.H|z.........|
-000003e0  2e 4e 8a cd 66 2b 9c b3  fe 99 b0 57 06 2e b3 a0  |.N..f+.....W....|
-000003f0  79 92 c1 bb 0e 29 44 02  f1 b0 43 17 03 03 00 a3  |y....)D...C.....|
-00000400  52 cd d9 d7 60 1c f5 06  83 aa 2f e0 0c 0f 5e 6d  |R...`...../...^m|
-00000410  0f 29 93 b9 ae 50 04 c6  f7 d3 ff c7 d1 ac 9d 43  |.)...P.........C|
-00000420  d7 b5 76 7a 16 b7 2c b7  79 48 a4 c3 28 2a 86 10  |..vz..,.yH..(*..|
-00000430  d1 24 7c 04 ed af 1f 8a  0b 18 29 97 7a 7a 47 3f  |.$|.......).zzG?|
-00000440  1f fe ba 9c 72 d9 9b ae  9b 83 5f f4 5a 4f 10 b8  |....r....._.ZO..|
-00000450  e5 45 35 76 77 a2 ac 99  1c bc 78 cf 6f 62 ef ef  |.E5vw.....x.ob..|
-00000460  9b 1b 90 eb 95 6b a1 25  82 b7 c1 1b 6f da 10 4c  |.....k.%....o..L|
-00000470  aa 3e a8 ba dd 77 b1 39  a0 b2 6a 11 18 44 2a 8d  |.>...w.9..j..D*.|
-00000480  58 9a 53 31 e1 d1 ec 8b  47 95 63 67 44 67 8d 09  |X.S1....G.cgDg..|
-00000490  2f 16 f5 19 cd 65 1d 52  d7 bd 19 f0 bb ec 7b 55  |/....e.R......{U|
-000004a0  33 4f 84                                          |3O.|
->>> Flow 3 (client to server)
-00000000  14 03 03 00 01 01 17 03  03 00 45 07 3f db d9 c7  |..........E.?...|
-00000010  05 fd c4 0c 2d ae ee d8  d7 e7 ac 46 19 a2 17 e5  |....-......F....|
-00000020  5e 10 30 65 05 be e0 c7  1e b3 e2 16 a4 d6 69 e1  |^.0e..........i.|
-00000030  2c ff 18 ba e4 8f d0 3d  12 45 df c3 d4 08 0d e6  |,......=.E......|
-00000040  94 6e 83 6d 99 9d f3 f1  02 48 6b 6f d1 2d f0 c6  |.n.m.....Hko.-..|
->>> Flow 4 (server to client)
-00000000  17 03 03 00 1e 2a 3d 96  b4 6a 9e 7f 7f ca e0 8e  |.....*=..j......|
-00000010  41 4e bd 82 86 61 b8 59  19 e4 97 02 c2 00 7e 69  |AN...a.Y......~i|
-00000020  81 b0 64 17 03 03 00 13  63 91 94 1a a3 51 bf 95  |..d.....c....Q..|
-00000030  9e 09 a2 a1 f0 01 57 93  00 71 49                 |......W..qI|
+00000000  15 03 03 00 02 02 28                              |......(|
diff --git a/libgo/go/crypto/tls/testdata/Server-TLSv13-RSA-RSAPSS-TooSmall b/libgo/go/crypto/tls/testdata/Server-TLSv13-RSA-RSAPSS-TooSmall
new file mode 100644
index 0000000..94f5818
--- /dev/null
+++ b/libgo/go/crypto/tls/testdata/Server-TLSv13-RSA-RSAPSS-TooSmall
@@ -0,0 +1,16 @@
+>>> Flow 1 (client to server)
+00000000  16 03 01 00 c6 01 00 00  c2 03 03 7c a4 3e 3b dd  |...........|.>;.|
+00000010  d4 90 de 04 87 40 12 a6  f8 63 d9 9d b3 44 7b 52  |.....@...c...D{R|
+00000020  9b b2 2d e2 da 0a 6b 87  30 2e 1f 20 38 be 06 6e  |..-...k.0.. 8..n|
+00000030  b8 2d 46 93 8d ed 31 ea  5c 44 5a 3a 6e 3a bd 3c  |.-F...1.\DZ:n:.<|
+00000040  0d 69 99 2c 5d 59 30 85  1a bc ce 59 00 08 13 02  |.i.,]Y0....Y....|
+00000050  13 03 13 01 00 ff 01 00  00 71 00 00 00 0e 00 0c  |.........q......|
+00000060  00 00 09 31 32 37 2e 30  2e 30 2e 31 00 0b 00 04  |...127.0.0.1....|
+00000070  03 00 01 02 00 0a 00 0c  00 0a 00 1d 00 17 00 1e  |................|
+00000080  00 19 00 18 00 16 00 00  00 17 00 00 00 0d 00 04  |................|
+00000090  00 02 08 06 00 2b 00 03  02 03 04 00 2d 00 02 01  |.....+......-...|
+000000a0  01 00 33 00 26 00 24 00  1d 00 20 d9 cb e9 03 27  |..3.&.$... ....'|
+000000b0  59 f0 bd 7a 1f 17 88 c7  35 2b 92 0c d9 0c 0f 9a  |Y..z....5+......|
+000000c0  b5 47 c7 e2 97 aa 92 04  c6 63 2d                 |.G.......c-|
+>>> Flow 2 (server to client)
+00000000  15 03 03 00 02 02 28                              |......(|
diff --git a/libgo/go/crypto/tls/tls.go b/libgo/go/crypto/tls/tls.go
index ba6d5eb..228f4a7 100644
--- a/libgo/go/crypto/tls/tls.go
+++ b/libgo/go/crypto/tls/tls.go
@@ -4,10 +4,6 @@
 
 // Package tls partially implements TLS 1.2, as specified in RFC 5246,
 // and TLS 1.3, as specified in RFC 8446.
-//
-// TLS 1.3 is available on an opt-out basis in Go 1.13. To disable
-// it, set the GODEBUG environment variable (comma-separated key=value
-// options) such that it includes "tls13=0".
 package tls
 
 // BUG(agl): The crypto/tls package only implements some countermeasures
@@ -79,8 +75,9 @@
 // The configuration config must be non-nil and must include
 // at least one certificate or else set GetCertificate.
 func Listen(network, laddr string, config *Config) (net.Listener, error) {
-	if config == nil || (len(config.Certificates) == 0 && config.GetCertificate == nil) {
-		return nil, errors.New("tls: neither Certificates nor GetCertificate set in Config")
+	if config == nil || len(config.Certificates) == 0 &&
+		config.GetCertificate == nil && config.GetConfigForClient == nil {
+		return nil, errors.New("tls: neither Certificates, GetCertificate, nor GetConfigForClient set in Config")
 	}
 	l, err := net.Listen(network, laddr)
 	if err != nil {
diff --git a/libgo/go/crypto/tls/tls_test.go b/libgo/go/crypto/tls/tls_test.go
index b68c074..178b519 100644
--- a/libgo/go/crypto/tls/tls_test.go
+++ b/libgo/go/crypto/tls/tls_test.go
@@ -6,6 +6,7 @@
 
 import (
 	"bytes"
+	"crypto"
 	"crypto/x509"
 	"encoding/json"
 	"errors"
@@ -18,7 +19,6 @@
 	"os"
 	"reflect"
 	"strings"
-	"sync"
 	"testing"
 	"time"
 )
@@ -1023,60 +1023,6 @@
 	}
 }
 
-// TestEscapeRoute tests that the library will still work if support for TLS 1.3
-// is dropped later in the Go 1.12 cycle.
-func TestEscapeRoute(t *testing.T) {
-	defer func(savedSupportedVersions []uint16) {
-		supportedVersions = savedSupportedVersions
-	}(supportedVersions)
-	supportedVersions = []uint16{
-		VersionTLS12,
-		VersionTLS11,
-		VersionTLS10,
-		VersionSSL30,
-	}
-
-	expectVersion(t, testConfig, testConfig, VersionTLS12)
-}
-
-func expectVersion(t *testing.T, clientConfig, serverConfig *Config, v uint16) {
-	ss, cs, err := testHandshake(t, clientConfig, serverConfig)
-	if err != nil {
-		t.Fatalf("Handshake failed: %v", err)
-	}
-	if ss.Version != v {
-		t.Errorf("Server negotiated version %x, expected %x", cs.Version, v)
-	}
-	if cs.Version != v {
-		t.Errorf("Client negotiated version %x, expected %x", cs.Version, v)
-	}
-}
-
-// TestTLS13Switch checks the behavior of GODEBUG=tls13=[0|1]. See Issue 30055.
-func TestTLS13Switch(t *testing.T) {
-	defer func(savedGODEBUG string) {
-		os.Setenv("GODEBUG", savedGODEBUG)
-	}(os.Getenv("GODEBUG"))
-
-	os.Setenv("GODEBUG", "tls13=0")
-	tls13Support.Once = sync.Once{} // reset the cache
-
-	tls12Config := testConfig.Clone()
-	tls12Config.MaxVersion = VersionTLS12
-	expectVersion(t, testConfig, testConfig, VersionTLS12)
-	expectVersion(t, tls12Config, testConfig, VersionTLS12)
-	expectVersion(t, testConfig, tls12Config, VersionTLS12)
-	expectVersion(t, tls12Config, tls12Config, VersionTLS12)
-
-	os.Setenv("GODEBUG", "tls13=1")
-	tls13Support.Once = sync.Once{} // reset the cache
-
-	expectVersion(t, testConfig, testConfig, VersionTLS13)
-	expectVersion(t, tls12Config, testConfig, VersionTLS12)
-	expectVersion(t, testConfig, tls12Config, VersionTLS12)
-	expectVersion(t, tls12Config, tls12Config, VersionTLS12)
-}
-
 // Issue 28744: Ensure that we don't modify memory
 // that Config doesn't own such as Certificates.
 func TestBuildNameToCertificate_doesntModifyCertificates(t *testing.T) {
@@ -1100,3 +1046,289 @@
 }
 
 func testingKey(s string) string { return strings.ReplaceAll(s, "TESTING KEY", "PRIVATE KEY") }
+
+func TestClientHelloInfo_SupportsCertificate(t *testing.T) {
+	rsaCert := &Certificate{
+		Certificate: [][]byte{testRSACertificate},
+		PrivateKey:  testRSAPrivateKey,
+	}
+	pkcs1Cert := &Certificate{
+		Certificate:                  [][]byte{testRSACertificate},
+		PrivateKey:                   testRSAPrivateKey,
+		SupportedSignatureAlgorithms: []SignatureScheme{PKCS1WithSHA1, PKCS1WithSHA256},
+	}
+	ecdsaCert := &Certificate{
+		// ECDSA P-256 certificate
+		Certificate: [][]byte{testP256Certificate},
+		PrivateKey:  testP256PrivateKey,
+	}
+	ed25519Cert := &Certificate{
+		Certificate: [][]byte{testEd25519Certificate},
+		PrivateKey:  testEd25519PrivateKey,
+	}
+
+	tests := []struct {
+		c       *Certificate
+		chi     *ClientHelloInfo
+		wantErr string
+	}{
+		{rsaCert, &ClientHelloInfo{
+			ServerName:        "example.golang",
+			SignatureSchemes:  []SignatureScheme{PSSWithSHA256},
+			SupportedVersions: []uint16{VersionTLS13},
+		}, ""},
+		{ecdsaCert, &ClientHelloInfo{
+			SignatureSchemes:  []SignatureScheme{PSSWithSHA256, ECDSAWithP256AndSHA256},
+			SupportedVersions: []uint16{VersionTLS13, VersionTLS12},
+		}, ""},
+		{rsaCert, &ClientHelloInfo{
+			ServerName:        "example.com",
+			SignatureSchemes:  []SignatureScheme{PSSWithSHA256},
+			SupportedVersions: []uint16{VersionTLS13},
+		}, "not valid for requested server name"},
+		{ecdsaCert, &ClientHelloInfo{
+			SignatureSchemes:  []SignatureScheme{ECDSAWithP384AndSHA384},
+			SupportedVersions: []uint16{VersionTLS13},
+		}, "signature algorithms"},
+		{pkcs1Cert, &ClientHelloInfo{
+			SignatureSchemes:  []SignatureScheme{PSSWithSHA256, ECDSAWithP256AndSHA256},
+			SupportedVersions: []uint16{VersionTLS13},
+		}, "signature algorithms"},
+
+		{rsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256},
+			SignatureSchemes:  []SignatureScheme{PKCS1WithSHA1},
+			SupportedVersions: []uint16{VersionTLS13, VersionTLS12},
+		}, "signature algorithms"},
+		{rsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256},
+			SignatureSchemes:  []SignatureScheme{PKCS1WithSHA1},
+			SupportedVersions: []uint16{VersionTLS13, VersionTLS12},
+			config: &Config{
+				MaxVersion: VersionTLS12,
+			},
+		}, ""}, // Check that mutual version selection works.
+
+		{ecdsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{CurveP256},
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SignatureSchemes:  []SignatureScheme{ECDSAWithP256AndSHA256},
+			SupportedVersions: []uint16{VersionTLS12},
+		}, ""},
+		{ecdsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{CurveP256},
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SignatureSchemes:  []SignatureScheme{ECDSAWithP384AndSHA384},
+			SupportedVersions: []uint16{VersionTLS12},
+		}, ""}, // TLS 1.2 does not restrict curves based on the SignatureScheme.
+		{ecdsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{CurveP256},
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SignatureSchemes:  nil,
+			SupportedVersions: []uint16{VersionTLS12},
+		}, ""}, // TLS 1.2 comes with default signature schemes.
+		{ecdsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{CurveP256},
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SignatureSchemes:  []SignatureScheme{ECDSAWithP256AndSHA256},
+			SupportedVersions: []uint16{VersionTLS12},
+		}, "cipher suite"},
+		{ecdsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{CurveP256},
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SignatureSchemes:  []SignatureScheme{ECDSAWithP256AndSHA256},
+			SupportedVersions: []uint16{VersionTLS12},
+			config: &Config{
+				CipherSuites: []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256},
+			},
+		}, "cipher suite"},
+		{ecdsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{CurveP384},
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SignatureSchemes:  []SignatureScheme{ECDSAWithP256AndSHA256},
+			SupportedVersions: []uint16{VersionTLS12},
+		}, "certificate curve"},
+		{ecdsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{CurveP256},
+			SupportedPoints:   []uint8{1},
+			SignatureSchemes:  []SignatureScheme{ECDSAWithP256AndSHA256},
+			SupportedVersions: []uint16{VersionTLS12},
+		}, "doesn't support ECDHE"},
+		{ecdsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{CurveP256},
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SignatureSchemes:  []SignatureScheme{PSSWithSHA256},
+			SupportedVersions: []uint16{VersionTLS12},
+		}, "signature algorithms"},
+
+		{ed25519Cert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{CurveP256}, // only relevant for ECDHE support
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SignatureSchemes:  []SignatureScheme{Ed25519},
+			SupportedVersions: []uint16{VersionTLS12},
+		}, ""},
+		{ed25519Cert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{CurveP256}, // only relevant for ECDHE support
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SignatureSchemes:  []SignatureScheme{Ed25519},
+			SupportedVersions: []uint16{VersionTLS10},
+		}, "doesn't support Ed25519"},
+		{ed25519Cert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+			SupportedCurves:   []CurveID{},
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SignatureSchemes:  []SignatureScheme{Ed25519},
+			SupportedVersions: []uint16{VersionTLS12},
+		}, "doesn't support ECDHE"},
+
+		{rsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA},
+			SupportedCurves:   []CurveID{CurveP256}, // only relevant for ECDHE support
+			SupportedPoints:   []uint8{pointFormatUncompressed},
+			SupportedVersions: []uint16{VersionTLS10},
+		}, ""},
+		{rsaCert, &ClientHelloInfo{
+			CipherSuites:      []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256},
+			SupportedVersions: []uint16{VersionTLS12},
+		}, ""}, // static RSA fallback
+	}
+	for i, tt := range tests {
+		err := tt.chi.SupportsCertificate(tt.c)
+		switch {
+		case tt.wantErr == "" && err != nil:
+			t.Errorf("%d: unexpected error: %v", i, err)
+		case tt.wantErr != "" && err == nil:
+			t.Errorf("%d: unexpected success", i)
+		case tt.wantErr != "" && !strings.Contains(err.Error(), tt.wantErr):
+			t.Errorf("%d: got error %q, expected %q", i, err, tt.wantErr)
+		}
+	}
+}
+
+func TestCipherSuites(t *testing.T) {
+	var lastID uint16
+	for _, c := range CipherSuites() {
+		if lastID > c.ID {
+			t.Errorf("CipherSuites are not ordered by ID: got %#04x after %#04x", c.ID, lastID)
+		} else {
+			lastID = c.ID
+		}
+
+		if c.Insecure {
+			t.Errorf("%#04x: Insecure CipherSuite returned by CipherSuites()", c.ID)
+		}
+	}
+	lastID = 0
+	for _, c := range InsecureCipherSuites() {
+		if lastID > c.ID {
+			t.Errorf("InsecureCipherSuites are not ordered by ID: got %#04x after %#04x", c.ID, lastID)
+		} else {
+			lastID = c.ID
+		}
+
+		if !c.Insecure {
+			t.Errorf("%#04x: not Insecure CipherSuite returned by InsecureCipherSuites()", c.ID)
+		}
+	}
+
+	cipherSuiteByID := func(id uint16) *CipherSuite {
+		for _, c := range CipherSuites() {
+			if c.ID == id {
+				return c
+			}
+		}
+		for _, c := range InsecureCipherSuites() {
+			if c.ID == id {
+				return c
+			}
+		}
+		return nil
+	}
+
+	for _, c := range cipherSuites {
+		cc := cipherSuiteByID(c.id)
+		if cc == nil {
+			t.Errorf("%#04x: no CipherSuite entry", c.id)
+			continue
+		}
+
+		if defaultOff := c.flags&suiteDefaultOff != 0; defaultOff != cc.Insecure {
+			t.Errorf("%#04x: Insecure %v, expected %v", c.id, cc.Insecure, defaultOff)
+		}
+		if tls12Only := c.flags&suiteTLS12 != 0; tls12Only && len(cc.SupportedVersions) != 1 {
+			t.Errorf("%#04x: suite is TLS 1.2 only, but SupportedVersions is %v", c.id, cc.SupportedVersions)
+		} else if !tls12Only && len(cc.SupportedVersions) != 3 {
+			t.Errorf("%#04x: suite TLS 1.0-1.2, but SupportedVersions is %v", c.id, cc.SupportedVersions)
+		}
+
+		if got := CipherSuiteName(c.id); got != cc.Name {
+			t.Errorf("%#04x: unexpected CipherSuiteName: got %q, expected %q", c.id, got, cc.Name)
+		}
+	}
+	for _, c := range cipherSuitesTLS13 {
+		cc := cipherSuiteByID(c.id)
+		if cc == nil {
+			t.Errorf("%#04x: no CipherSuite entry", c.id)
+			continue
+		}
+
+		if cc.Insecure {
+			t.Errorf("%#04x: Insecure %v, expected false", c.id, cc.Insecure)
+		}
+		if len(cc.SupportedVersions) != 1 || cc.SupportedVersions[0] != VersionTLS13 {
+			t.Errorf("%#04x: suite is TLS 1.3 only, but SupportedVersions is %v", c.id, cc.SupportedVersions)
+		}
+
+		if got := CipherSuiteName(c.id); got != cc.Name {
+			t.Errorf("%#04x: unexpected CipherSuiteName: got %q, expected %q", c.id, got, cc.Name)
+		}
+	}
+
+	if got := CipherSuiteName(0xabc); got != "0x0ABC" {
+		t.Errorf("unexpected fallback CipherSuiteName: got %q, expected 0x0ABC", got)
+	}
+}
+
+type brokenSigner struct{ crypto.Signer }
+
+func (s brokenSigner) Sign(rand io.Reader, digest []byte, opts crypto.SignerOpts) (signature []byte, err error) {
+	// Replace opts with opts.HashFunc(), so rsa.PSSOptions are discarded.
+	return s.Signer.Sign(rand, digest, opts.HashFunc())
+}
+
+// TestPKCS1OnlyCert uses a client certificate with a broken crypto.Signer that
+// always makes PKCS#1 v1.5 signatures, so can't be used with RSA-PSS.
+func TestPKCS1OnlyCert(t *testing.T) {
+	clientConfig := testConfig.Clone()
+	clientConfig.Certificates = []Certificate{{
+		Certificate: [][]byte{testRSACertificate},
+		PrivateKey:  brokenSigner{testRSAPrivateKey},
+	}}
+	serverConfig := testConfig.Clone()
+	serverConfig.MaxVersion = VersionTLS12 // TLS 1.3 doesn't support PKCS#1 v1.5
+	serverConfig.ClientAuth = RequireAnyClientCert
+
+	// If RSA-PSS is selected, the handshake should fail.
+	if _, _, err := testHandshake(t, clientConfig, serverConfig); err == nil {
+		t.Fatal("expected broken certificate to cause connection to fail")
+	}
+
+	clientConfig.Certificates[0].SupportedSignatureAlgorithms =
+		[]SignatureScheme{PKCS1WithSHA1, PKCS1WithSHA256}
+
+	// But if the certificate restricts supported algorithms, RSA-PSS should not
+	// be selected, and the handshake should succeed.
+	if _, _, err := testHandshake(t, clientConfig, serverConfig); err != nil {
+		t.Error(err)
+	}
+}
diff --git a/libgo/go/crypto/x509/name_constraints_test.go b/libgo/go/crypto/x509/name_constraints_test.go
index 2020e37..5469e28 100644
--- a/libgo/go/crypto/x509/name_constraints_test.go
+++ b/libgo/go/crypto/x509/name_constraints_test.go
@@ -1457,7 +1457,7 @@
 	// that we can process CA certificates in the wild that have invalid SANs.
 	// See https://github.com/golang/go/issues/23995
 
-	// #77: an invalid DNS or mail SAN will not be detected if name constaint
+	// #77: an invalid DNS or mail SAN will not be detected if name constraint
 	// checking is not triggered.
 	{
 		roots: make([]constraintsSpec, 1),
diff --git a/libgo/go/crypto/x509/root_nacl.go b/libgo/go/crypto/x509/root_nacl.go
deleted file mode 100644
index 4413f64..0000000
--- a/libgo/go/crypto/x509/root_nacl.go
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package x509
-
-// Possible certificate files; stop after finding one.
-var certFiles = []string{}
diff --git a/libgo/go/crypto/x509/root_unix.go b/libgo/go/crypto/x509/root_unix.go
index eb8018e..a557ad6 100644
--- a/libgo/go/crypto/x509/root_unix.go
+++ b/libgo/go/crypto/x509/root_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package x509
 
diff --git a/libgo/go/crypto/x509/root_windows.go b/libgo/go/crypto/x509/root_windows.go
index 1e3ebe8..54ab1dc 100644
--- a/libgo/go/crypto/x509/root_windows.go
+++ b/libgo/go/crypto/x509/root_windows.go
@@ -61,15 +61,15 @@
 		return nil, errors.New("x509: invalid simple chain")
 	}
 
-	simpleChains := (*[1 << 20]*syscall.CertSimpleChain)(unsafe.Pointer(simpleChain))[:]
+	simpleChains := (*[1 << 20]*syscall.CertSimpleChain)(unsafe.Pointer(simpleChain))[:count:count]
 	lastChain := simpleChains[count-1]
-	elements := (*[1 << 20]*syscall.CertChainElement)(unsafe.Pointer(lastChain.Elements))[:]
+	elements := (*[1 << 20]*syscall.CertChainElement)(unsafe.Pointer(lastChain.Elements))[:lastChain.NumElements:lastChain.NumElements]
 	for i := 0; i < int(lastChain.NumElements); i++ {
 		// Copy the buf, since ParseCertificate does not create its own copy.
 		cert := elements[i].CertContext
-		encodedCert := (*[1 << 20]byte)(unsafe.Pointer(cert.EncodedCert))[:]
+		encodedCert := (*[1 << 20]byte)(unsafe.Pointer(cert.EncodedCert))[:cert.Length:cert.Length]
 		buf := make([]byte, cert.Length)
-		copy(buf, encodedCert[:])
+		copy(buf, encodedCert)
 		parsedCert, err := ParseCertificate(buf)
 		if err != nil {
 			return nil, err
@@ -259,7 +259,7 @@
 			break
 		}
 		// Copy the buf, since ParseCertificate does not create its own copy.
-		buf := (*[1 << 20]byte)(unsafe.Pointer(cert.EncodedCert))[:]
+		buf := (*[1 << 20]byte)(unsafe.Pointer(cert.EncodedCert))[:cert.Length:cert.Length]
 		buf2 := make([]byte, cert.Length)
 		copy(buf2, buf)
 		if c, err := ParseCertificate(buf2); err == nil {
diff --git a/libgo/go/crypto/x509/sec1.go b/libgo/go/crypto/x509/sec1.go
index 6cffa59..0bfb90c 100644
--- a/libgo/go/crypto/x509/sec1.go
+++ b/libgo/go/crypto/x509/sec1.go
@@ -28,9 +28,9 @@
 	PublicKey     asn1.BitString        `asn1:"optional,explicit,tag:1"`
 }
 
-// ParseECPrivateKey parses an EC public key in SEC 1, ASN.1 DER form.
+// ParseECPrivateKey parses an EC private key in SEC 1, ASN.1 DER form.
 //
-// This kind of key is commonly encoded in PEM blocks of type "EC PUBLIC KEY".
+// This kind of key is commonly encoded in PEM blocks of type "EC PRIVATE KEY".
 func ParseECPrivateKey(der []byte) (*ecdsa.PrivateKey, error) {
 	return parseECPrivateKey(nil, der)
 }
diff --git a/libgo/go/crypto/x509/verify.go b/libgo/go/crypto/x509/verify.go
index 3b5b357..358fca4 100644
--- a/libgo/go/crypto/x509/verify.go
+++ b/libgo/go/crypto/x509/verify.go
@@ -80,7 +80,7 @@
 	case NotAuthorizedToSign:
 		return "x509: certificate is not authorized to sign other certificates"
 	case Expired:
-		return "x509: certificate has expired or is not yet valid"
+		return "x509: certificate has expired or is not yet valid: " + e.Detail
 	case CANotAuthorizedForThisName:
 		return "x509: a root or intermediate certificate is not authorized to sign for this name: " + e.Detail
 	case CANotAuthorizedForExtKeyUsage:
@@ -576,8 +576,18 @@
 	if now.IsZero() {
 		now = time.Now()
 	}
-	if now.Before(c.NotBefore) || now.After(c.NotAfter) {
-		return CertificateInvalidError{c, Expired, ""}
+	if now.Before(c.NotBefore) {
+		return CertificateInvalidError{
+			Cert:   c,
+			Reason: Expired,
+			Detail: fmt.Sprintf("current time %s is before %s", now.Format(time.RFC3339), c.NotBefore.Format(time.RFC3339)),
+		}
+	} else if now.After(c.NotAfter) {
+		return CertificateInvalidError{
+			Cert:   c,
+			Reason: Expired,
+			Detail: fmt.Sprintf("current time %s is after %s", now.Format(time.RFC3339), c.NotAfter.Format(time.RFC3339)),
+		}
 	}
 
 	maxConstraintComparisons := opts.MaxConstraintComparisions
diff --git a/libgo/go/crypto/x509/x509.go b/libgo/go/crypto/x509/x509.go
index 1cd8fde..013f1c9 100644
--- a/libgo/go/crypto/x509/x509.go
+++ b/libgo/go/crypto/x509/x509.go
@@ -25,8 +25,6 @@
 	"encoding/pem"
 	"errors"
 	"fmt"
-	"golang.org/x/crypto/cryptobyte"
-	cryptobyte_asn1 "golang.org/x/crypto/cryptobyte/asn1"
 	"io"
 	"math/big"
 	"net"
@@ -35,6 +33,9 @@
 	"strings"
 	"time"
 	"unicode/utf8"
+
+	"golang.org/x/crypto/cryptobyte"
+	cryptobyte_asn1 "golang.org/x/crypto/cryptobyte/asn1"
 )
 
 // pkixPublicKey reflects a PKIX public key structure. See SubjectPublicKeyInfo
@@ -98,7 +99,7 @@
 		publicKeyBytes = pub
 		publicKeyAlgorithm.Algorithm = oidPublicKeyEd25519
 	default:
-		return nil, pkix.AlgorithmIdentifier{}, errors.New("x509: only RSA and ECDSA public keys supported")
+		return nil, pkix.AlgorithmIdentifier{}, fmt.Errorf("x509: unsupported public key type: %T", pub)
 	}
 
 	return publicKeyBytes, publicKeyAlgorithm, nil
@@ -780,6 +781,9 @@
 }
 
 func (c *Certificate) Equal(other *Certificate) bool {
+	if c == nil || other == nil {
+		return c == other
+	}
 	return bytes.Equal(c.Raw, other.Raw)
 }
 
@@ -787,55 +791,6 @@
 	return oidInExtensions(oidExtensionSubjectAltName, c.Extensions)
 }
 
-// Entrust have a broken root certificate (CN=Entrust.net Certification
-// Authority (2048)) which isn't marked as a CA certificate and is thus invalid
-// according to PKIX.
-// We recognise this certificate by its SubjectPublicKeyInfo and exempt it
-// from the Basic Constraints requirement.
-// See http://www.entrust.net/knowledge-base/technote.cfm?tn=7869
-//
-// TODO(agl): remove this hack once their reissued root is sufficiently
-// widespread.
-var entrustBrokenSPKI = []byte{
-	0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09,
-	0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
-	0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00,
-	0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01,
-	0x00, 0x97, 0xa3, 0x2d, 0x3c, 0x9e, 0xde, 0x05,
-	0xda, 0x13, 0xc2, 0x11, 0x8d, 0x9d, 0x8e, 0xe3,
-	0x7f, 0xc7, 0x4b, 0x7e, 0x5a, 0x9f, 0xb3, 0xff,
-	0x62, 0xab, 0x73, 0xc8, 0x28, 0x6b, 0xba, 0x10,
-	0x64, 0x82, 0x87, 0x13, 0xcd, 0x57, 0x18, 0xff,
-	0x28, 0xce, 0xc0, 0xe6, 0x0e, 0x06, 0x91, 0x50,
-	0x29, 0x83, 0xd1, 0xf2, 0xc3, 0x2a, 0xdb, 0xd8,
-	0xdb, 0x4e, 0x04, 0xcc, 0x00, 0xeb, 0x8b, 0xb6,
-	0x96, 0xdc, 0xbc, 0xaa, 0xfa, 0x52, 0x77, 0x04,
-	0xc1, 0xdb, 0x19, 0xe4, 0xae, 0x9c, 0xfd, 0x3c,
-	0x8b, 0x03, 0xef, 0x4d, 0xbc, 0x1a, 0x03, 0x65,
-	0xf9, 0xc1, 0xb1, 0x3f, 0x72, 0x86, 0xf2, 0x38,
-	0xaa, 0x19, 0xae, 0x10, 0x88, 0x78, 0x28, 0xda,
-	0x75, 0xc3, 0x3d, 0x02, 0x82, 0x02, 0x9c, 0xb9,
-	0xc1, 0x65, 0x77, 0x76, 0x24, 0x4c, 0x98, 0xf7,
-	0x6d, 0x31, 0x38, 0xfb, 0xdb, 0xfe, 0xdb, 0x37,
-	0x02, 0x76, 0xa1, 0x18, 0x97, 0xa6, 0xcc, 0xde,
-	0x20, 0x09, 0x49, 0x36, 0x24, 0x69, 0x42, 0xf6,
-	0xe4, 0x37, 0x62, 0xf1, 0x59, 0x6d, 0xa9, 0x3c,
-	0xed, 0x34, 0x9c, 0xa3, 0x8e, 0xdb, 0xdc, 0x3a,
-	0xd7, 0xf7, 0x0a, 0x6f, 0xef, 0x2e, 0xd8, 0xd5,
-	0x93, 0x5a, 0x7a, 0xed, 0x08, 0x49, 0x68, 0xe2,
-	0x41, 0xe3, 0x5a, 0x90, 0xc1, 0x86, 0x55, 0xfc,
-	0x51, 0x43, 0x9d, 0xe0, 0xb2, 0xc4, 0x67, 0xb4,
-	0xcb, 0x32, 0x31, 0x25, 0xf0, 0x54, 0x9f, 0x4b,
-	0xd1, 0x6f, 0xdb, 0xd4, 0xdd, 0xfc, 0xaf, 0x5e,
-	0x6c, 0x78, 0x90, 0x95, 0xde, 0xca, 0x3a, 0x48,
-	0xb9, 0x79, 0x3c, 0x9b, 0x19, 0xd6, 0x75, 0x05,
-	0xa0, 0xf9, 0x88, 0xd7, 0xc1, 0xe8, 0xa5, 0x09,
-	0xe4, 0x1a, 0x15, 0xdc, 0x87, 0x23, 0xaa, 0xb2,
-	0x75, 0x8c, 0x63, 0x25, 0x87, 0xd8, 0xf8, 0x3d,
-	0xa6, 0xc2, 0xcc, 0x66, 0xff, 0xa5, 0x66, 0x68,
-	0x55, 0x02, 0x03, 0x01, 0x00, 0x01,
-}
-
 // CheckSignatureFrom verifies that the signature on c is a valid signature
 // from parent.
 func (c *Certificate) CheckSignatureFrom(parent *Certificate) error {
@@ -844,10 +799,8 @@
 	// certificate, or the extension is present but the cA boolean is not
 	// asserted, then the certified public key MUST NOT be used to verify
 	// certificate signatures."
-	// (except for Entrust, see comment above entrustBrokenSPKI)
-	if (parent.Version == 3 && !parent.BasicConstraintsValid ||
-		parent.BasicConstraintsValid && !parent.IsCA) &&
-		!bytes.Equal(c.RawSubjectPublicKeyInfo, entrustBrokenSPKI) {
+	if parent.Version == 3 && !parent.BasicConstraintsValid ||
+		parent.BasicConstraintsValid && !parent.IsCA {
 		return ConstraintViolationError{}
 	}
 
@@ -939,6 +892,11 @@
 		if dsaSig.R.Sign() <= 0 || dsaSig.S.Sign() <= 0 {
 			return errors.New("x509: DSA signature contained zero or negative values")
 		}
+		// According to FIPS 186-3, section 4.6, the hash must be truncated if it is longer
+		// than the key length, but crypto/dsa doesn't do it automatically.
+		if maxHashLen := pub.Q.BitLen() / 8; maxHashLen < len(signed) {
+			signed = signed[:maxHashLen]
+		}
 		if !dsa.Verify(pub, signed, dsaSig.R, dsaSig.S) {
 			return errors.New("x509: DSA verification failure")
 		}
@@ -2099,6 +2057,7 @@
 //  - ExcludedURIDomains
 //  - ExtKeyUsage
 //  - ExtraExtensions
+//  - IPAddresses
 //  - IsCA
 //  - IssuingCertificateURL
 //  - KeyUsage
@@ -2297,12 +2256,15 @@
 		return
 	}
 
-	h := hashFunc.New()
-	h.Write(tbsCertListContents)
-	digest := h.Sum(nil)
+	signed := tbsCertListContents
+	if hashFunc != 0 {
+		h := hashFunc.New()
+		h.Write(signed)
+		signed = h.Sum(nil)
+	}
 
 	var signature []byte
-	signature, err = key.Sign(rand, digest, hashFunc)
+	signature, err = key.Sign(rand, signed, hashFunc)
 	if err != nil {
 		return
 	}
diff --git a/libgo/go/crypto/x509/x509_test.go b/libgo/go/crypto/x509/x509_test.go
index 171509f..9e15b8a 100644
--- a/libgo/go/crypto/x509/x509_test.go
+++ b/libgo/go/crypto/x509/x509_test.go
@@ -450,6 +450,23 @@
 	}
 }
 
+func TestCertificateEqualOnNil(t *testing.T) {
+	cNonNil := new(Certificate)
+	var cNil1, cNil2 *Certificate
+	if !cNil1.Equal(cNil2) {
+		t.Error("Nil certificates: cNil1 is not equal to cNil2")
+	}
+	if !cNil2.Equal(cNil1) {
+		t.Error("Nil certificates: cNil2 is not equal to cNil1")
+	}
+	if cNil1.Equal(cNonNil) {
+		t.Error("Unexpectedly cNil1 is equal to cNonNil")
+	}
+	if cNonNil.Equal(cNil1) {
+		t.Error("Unexpectedly cNonNil is equal to cNil1")
+	}
+}
+
 func TestMismatchedSignatureAlgorithm(t *testing.T) {
 	der, _ := pem.Decode([]byte(rsaPSSSelfSignedPEM))
 	if der == nil {
@@ -958,6 +975,49 @@
 	}
 }
 
+const dsaCert1024WithSha256 = `-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----
+`
+
+func TestVerifyCertificateWithDSATooLongHash(t *testing.T) {
+	pemBlock, _ := pem.Decode([]byte(dsaCert1024WithSha256))
+	cert, err := ParseCertificate(pemBlock.Bytes)
+	if err != nil {
+		t.Fatalf("Failed to parse certificate: %s", err)
+	}
+
+	// test cert is self-signed
+	if err = cert.CheckSignatureFrom(cert); err != nil {
+		t.Fatalf("DSA Certificate self-signature verification failed: %s", err)
+	}
+
+	signed := []byte("A wild Gopher appears!\n")
+	signature, _ := hex.DecodeString("302c0214417aca7ff458f5b566e43e7b82f994953da84be50214625901e249e33f4e4838f8b5966020c286dd610e")
+
+	// This signature is using SHA256, but only has 1024 DSA key. The hash has to be truncated
+	// in CheckSignature, otherwise it won't pass.
+	if err = cert.CheckSignature(DSAWithSHA256, signed, signature); err != nil {
+		t.Fatalf("DSA signature verification failed: %s", err)
+	}
+}
+
 var rsaPSSSelfSignedPEM = `-----BEGIN CERTIFICATE-----
 MIIGHjCCA9KgAwIBAgIBdjBBBgkqhkiG9w0BAQowNKAPMA0GCWCGSAFlAwQCAQUA
 oRwwGgYJKoZIhvcNAQEIMA0GCWCGSAFlAwQCAQUAogMCASAwbjELMAkGA1UEBhMC
@@ -1133,11 +1193,77 @@
 EhLrEqU=
 -----END CERTIFICATE-----`
 
+const ed25519CRLCertificate = `
+Certificate:
+Data:
+	Version: 3 (0x2)
+	Serial Number:
+		7a:07:a0:9d:14:04:16:fc:1f:d8:e5:fe:d1:1d:1f:8d
+	Signature Algorithm: ED25519
+	Issuer: CN = Ed25519 CRL Test CA
+	Validity
+		Not Before: Oct 30 01:20:20 2019 GMT
+		Not After : Dec 31 23:59:59 9999 GMT
+	Subject: CN = Ed25519 CRL Test CA
+	Subject Public Key Info:
+		Public Key Algorithm: ED25519
+			ED25519 Public-Key:
+			pub:
+				95:73:3b:b0:06:2a:31:5a:b6:a7:a6:6e:ef:71:df:
+				ac:6f:6b:39:03:85:5e:63:4b:f8:a6:0f:68:c6:6f:
+				75:21
+	X509v3 extensions:
+		X509v3 Key Usage: critical
+			Digital Signature, Certificate Sign, CRL Sign
+		X509v3 Extended Key Usage: 
+			TLS Web Client Authentication, TLS Web Server Authentication, OCSP Signing
+		X509v3 Basic Constraints: critical
+			CA:TRUE
+		X509v3 Subject Key Identifier: 
+			B7:17:DA:16:EA:C5:ED:1F:18:49:44:D3:D2:E3:A0:35:0A:81:93:60
+		X509v3 Authority Key Identifier: 
+			keyid:B7:17:DA:16:EA:C5:ED:1F:18:49:44:D3:D2:E3:A0:35:0A:81:93:60
+
+Signature Algorithm: ED25519
+	 fc:3e:14:ea:bb:70:c2:6f:38:34:70:bc:c8:a7:f4:7c:0d:1e:
+	 28:d7:2a:9f:22:8a:45:e8:02:76:84:1e:2d:64:2d:1e:09:b5:
+	 29:71:1f:95:8a:4e:79:87:51:60:9a:e7:86:40:f6:60:c7:d1:
+	 ee:68:76:17:1d:90:cc:92:93:07
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----`
+
+const ed25519CRLKey = `-----BEGIN PRIVATE KEY-----
+MC4CAQAwBQYDK2VwBCIEINdKh2096vUBYu4EIFpjShsUSh3vimKya1sQ1YTT4RZG
+-----END PRIVATE KEY-----`
+
 func TestCRLCreation(t *testing.T) {
 	block, _ := pem.Decode([]byte(pemPrivateKey))
-	priv, _ := ParsePKCS1PrivateKey(block.Bytes)
+	privRSA, _ := ParsePKCS1PrivateKey(block.Bytes)
 	block, _ = pem.Decode([]byte(pemCertificate))
-	cert, _ := ParseCertificate(block.Bytes)
+	certRSA, _ := ParseCertificate(block.Bytes)
+
+	block, _ = pem.Decode([]byte(ed25519CRLKey))
+	privEd25519, _ := ParsePKCS8PrivateKey(block.Bytes)
+	block, _ = pem.Decode([]byte(ed25519CRLCertificate))
+	certEd25519, _ := ParseCertificate(block.Bytes)
+
+	tests := []struct {
+		name string
+		priv interface{}
+		cert *Certificate
+	}{
+		{"RSA CA", privRSA, certRSA},
+		{"Ed25519 CA", privEd25519, certEd25519},
+	}
 
 	loc := time.FixedZone("Oz/Atlantis", int((2 * time.Hour).Seconds()))
 
@@ -1167,18 +1293,20 @@
 		},
 	}
 
-	crlBytes, err := cert.CreateCRL(rand.Reader, priv, revokedCerts, now, expiry)
-	if err != nil {
-		t.Errorf("error creating CRL: %s", err)
-	}
+	for _, test := range tests {
+		crlBytes, err := test.cert.CreateCRL(rand.Reader, test.priv, revokedCerts, now, expiry)
+		if err != nil {
+			t.Errorf("%s: error creating CRL: %s", test.name, err)
+		}
 
-	parsedCRL, err := ParseDERCRL(crlBytes)
-	if err != nil {
-		t.Errorf("error reparsing CRL: %s", err)
-	}
-	if !reflect.DeepEqual(parsedCRL.TBSCertList.RevokedCertificates, expectedCerts) {
-		t.Errorf("RevokedCertificates mismatch: got %v; want %v.",
-			parsedCRL.TBSCertList.RevokedCertificates, expectedCerts)
+		parsedCRL, err := ParseDERCRL(crlBytes)
+		if err != nil {
+			t.Errorf("%s: error reparsing CRL: %s", test.name, err)
+		}
+		if !reflect.DeepEqual(parsedCRL.TBSCertList.RevokedCertificates, expectedCerts) {
+			t.Errorf("%s: RevokedCertificates mismatch: got %v; want %v.", test.name,
+				parsedCRL.TBSCertList.RevokedCertificates, expectedCerts)
+		}
 	}
 }
 
diff --git a/libgo/go/database/sql/convert.go b/libgo/go/database/sql/convert.go
index 4c056a1..b966ef9 100644
--- a/libgo/go/database/sql/convert.go
+++ b/libgo/go/database/sql/convert.go
@@ -565,7 +565,7 @@
 // coefficient (also known as a significand) as a []byte, and an int32 exponent.
 // These are composed into a final value as "decimal = (neg) (form=finite) coefficient * 10 ^ exponent".
 // A zero length coefficient is a zero value.
-// The big-endian integer coefficent stores the most significant byte first (at coefficent[0]).
+// The big-endian integer coefficient stores the most significant byte first (at coefficient[0]).
 // If the form is not finite the coefficient and exponent should be ignored.
 // The negative parameter may be set to true for any form, although implementations are not required
 // to respect the negative parameter in the non-finite form.
diff --git a/libgo/go/database/sql/convert_test.go b/libgo/go/database/sql/convert_test.go
index 8a82891..2668a5e 100644
--- a/libgo/go/database/sql/convert_test.go
+++ b/libgo/go/database/sql/convert_test.go
@@ -525,7 +525,7 @@
 	// This isn't strictly correct, as the extra bytes could be all zero,
 	// ignore this for this test.
 	if len(coefficient) > 16 {
-		return fmt.Errorf("coefficent too large")
+		return fmt.Errorf("coefficient too large")
 	}
 	copy(d.coefficient[:], coefficient)
 
@@ -558,7 +558,7 @@
 	// This isn't strictly correct, as the extra bytes could be all zero,
 	// ignore this for this test.
 	if len(coefficient) > 16 {
-		return fmt.Errorf("coefficent too large")
+		return fmt.Errorf("coefficient too large")
 	}
 	copy(d.coefficient[:], coefficient)
 
diff --git a/libgo/go/database/sql/ctxutil.go b/libgo/go/database/sql/ctxutil.go
index af2afd5..4dbe6af 100644
--- a/libgo/go/database/sql/ctxutil.go
+++ b/libgo/go/database/sql/ctxutil.go
@@ -94,8 +94,6 @@
 	return si.Query(dargs)
 }
 
-var errLevelNotSupported = errors.New("sql: selected isolation level is not supported")
-
 func ctxDriverBegin(ctx context.Context, opts *TxOptions, ci driver.Conn) (driver.Tx, error) {
 	if ciCtx, is := ci.(driver.ConnBeginTx); is {
 		dopts := driver.TxOptions{}
diff --git a/libgo/go/database/sql/fakedb_test.go b/libgo/go/database/sql/fakedb_test.go
index c0371f3..a0028be 100644
--- a/libgo/go/database/sql/fakedb_test.go
+++ b/libgo/go/database/sql/fakedb_test.go
@@ -10,7 +10,6 @@
 	"errors"
 	"fmt"
 	"io"
-	"log"
 	"reflect"
 	"sort"
 	"strconv"
@@ -20,8 +19,6 @@
 	"time"
 )
 
-var _ = log.Printf
-
 // fakeDriver is a fake database that implements Go's driver.Driver
 // interface, just for testing.
 //
diff --git a/libgo/go/database/sql/sql.go b/libgo/go/database/sql/sql.go
index 5c5b7dc..0f5bbc0 100644
--- a/libgo/go/database/sql/sql.go
+++ b/libgo/go/database/sql/sql.go
@@ -64,7 +64,7 @@
 func Drivers() []string {
 	driversMu.RLock()
 	defer driversMu.RUnlock()
-	var list []string
+	list := make([]string, 0, len(drivers))
 	for name := range drivers {
 		list = append(list, name)
 	}
@@ -2040,7 +2040,7 @@
 		return nil, nil, ctx.Err()
 	}
 
-	// closeme.RLock must come before the check for isDone to prevent the Tx from
+	// closemu.RLock must come before the check for isDone to prevent the Tx from
 	// closing while a query is executing.
 	tx.closemu.RLock()
 	if tx.isDone() {
diff --git a/libgo/go/database/sql/sql_test.go b/libgo/go/database/sql/sql_test.go
index f68cefe..ed0099e 100644
--- a/libgo/go/database/sql/sql_test.go
+++ b/libgo/go/database/sql/sql_test.go
@@ -3783,7 +3783,7 @@
 // TestQueryExecContextOnly ensures drivers only need to implement QueryContext
 // and ExecContext methods.
 func TestQueryExecContextOnly(t *testing.T) {
-	// Ensure connection does not implment non-context interfaces.
+	// Ensure connection does not implement non-context interfaces.
 	var connType driver.Conn = &ctxOnlyConn{}
 	if _, ok := connType.(driver.Execer); ok {
 		t.Fatalf("%T must not implement driver.Execer", connType)
diff --git a/libgo/go/debug/dwarf/attr_string.go b/libgo/go/debug/dwarf/attr_string.go
index 34e3659..8a4fff8 100644
--- a/libgo/go/debug/dwarf/attr_string.go
+++ b/libgo/go/debug/dwarf/attr_string.go
@@ -4,81 +4,257 @@
 
 import "strconv"
 
-const _Attr_name = "SiblingLocationNameOrderingByteSizeBitOffsetBitSizeStmtListLowpcHighpcLanguageDiscrDiscrValueVisibilityImportStringLengthCommonRefCompDirConstValueContainingTypeDefaultValueInlineIsOptionalLowerBoundProducerPrototypedReturnAddrStartScopeStrideSizeUpperBoundAbstractOriginAccessibilityAddrClassArtificialBaseTypesCallingCountDataMemberLocDeclColumnDeclFileDeclLineDeclarationDiscrListEncodingExternalFrameBaseFriendIdentifierCaseMacroInfoNamelistItemPrioritySegmentSpecificationStaticLinkTypeUseLocationVarParamVirtualityVtableElemLocAllocatedAssociatedDataLocationStrideEntrypcUseUTF8ExtensionRangesTrampolineCallColumnCallFileCallLineDescription"
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[AttrSibling-1]
+	_ = x[AttrLocation-2]
+	_ = x[AttrName-3]
+	_ = x[AttrOrdering-9]
+	_ = x[AttrByteSize-11]
+	_ = x[AttrBitOffset-12]
+	_ = x[AttrBitSize-13]
+	_ = x[AttrStmtList-16]
+	_ = x[AttrLowpc-17]
+	_ = x[AttrHighpc-18]
+	_ = x[AttrLanguage-19]
+	_ = x[AttrDiscr-21]
+	_ = x[AttrDiscrValue-22]
+	_ = x[AttrVisibility-23]
+	_ = x[AttrImport-24]
+	_ = x[AttrStringLength-25]
+	_ = x[AttrCommonRef-26]
+	_ = x[AttrCompDir-27]
+	_ = x[AttrConstValue-28]
+	_ = x[AttrContainingType-29]
+	_ = x[AttrDefaultValue-30]
+	_ = x[AttrInline-32]
+	_ = x[AttrIsOptional-33]
+	_ = x[AttrLowerBound-34]
+	_ = x[AttrProducer-37]
+	_ = x[AttrPrototyped-39]
+	_ = x[AttrReturnAddr-42]
+	_ = x[AttrStartScope-44]
+	_ = x[AttrStrideSize-46]
+	_ = x[AttrUpperBound-47]
+	_ = x[AttrAbstractOrigin-49]
+	_ = x[AttrAccessibility-50]
+	_ = x[AttrAddrClass-51]
+	_ = x[AttrArtificial-52]
+	_ = x[AttrBaseTypes-53]
+	_ = x[AttrCalling-54]
+	_ = x[AttrCount-55]
+	_ = x[AttrDataMemberLoc-56]
+	_ = x[AttrDeclColumn-57]
+	_ = x[AttrDeclFile-58]
+	_ = x[AttrDeclLine-59]
+	_ = x[AttrDeclaration-60]
+	_ = x[AttrDiscrList-61]
+	_ = x[AttrEncoding-62]
+	_ = x[AttrExternal-63]
+	_ = x[AttrFrameBase-64]
+	_ = x[AttrFriend-65]
+	_ = x[AttrIdentifierCase-66]
+	_ = x[AttrMacroInfo-67]
+	_ = x[AttrNamelistItem-68]
+	_ = x[AttrPriority-69]
+	_ = x[AttrSegment-70]
+	_ = x[AttrSpecification-71]
+	_ = x[AttrStaticLink-72]
+	_ = x[AttrType-73]
+	_ = x[AttrUseLocation-74]
+	_ = x[AttrVarParam-75]
+	_ = x[AttrVirtuality-76]
+	_ = x[AttrVtableElemLoc-77]
+	_ = x[AttrAllocated-78]
+	_ = x[AttrAssociated-79]
+	_ = x[AttrDataLocation-80]
+	_ = x[AttrStride-81]
+	_ = x[AttrEntrypc-82]
+	_ = x[AttrUseUTF8-83]
+	_ = x[AttrExtension-84]
+	_ = x[AttrRanges-85]
+	_ = x[AttrTrampoline-86]
+	_ = x[AttrCallColumn-87]
+	_ = x[AttrCallFile-88]
+	_ = x[AttrCallLine-89]
+	_ = x[AttrDescription-90]
+	_ = x[AttrBinaryScale-91]
+	_ = x[AttrDecimalScale-92]
+	_ = x[AttrSmall-93]
+	_ = x[AttrDecimalSign-94]
+	_ = x[AttrDigitCount-95]
+	_ = x[AttrPictureString-96]
+	_ = x[AttrMutable-97]
+	_ = x[AttrThreadsScaled-98]
+	_ = x[AttrExplicit-99]
+	_ = x[AttrObjectPointer-100]
+	_ = x[AttrEndianity-101]
+	_ = x[AttrElemental-102]
+	_ = x[AttrPure-103]
+	_ = x[AttrRecursive-104]
+	_ = x[AttrSignature-105]
+	_ = x[AttrMainSubprogram-106]
+	_ = x[AttrDataBitOffset-107]
+	_ = x[AttrConstExpr-108]
+	_ = x[AttrEnumClass-109]
+	_ = x[AttrLinkageName-110]
+	_ = x[AttrStringLengthBitSize-111]
+	_ = x[AttrStringLengthByteSize-112]
+	_ = x[AttrRank-113]
+	_ = x[AttrStrOffsetsBase-114]
+	_ = x[AttrAddrBase-115]
+	_ = x[AttrRnglistsBase-116]
+	_ = x[AttrDwoName-118]
+	_ = x[AttrReference-119]
+	_ = x[AttrRvalueReference-120]
+	_ = x[AttrMacros-121]
+	_ = x[AttrCallAllCalls-122]
+	_ = x[AttrCallAllSourceCalls-123]
+	_ = x[AttrCallAllTailCalls-124]
+	_ = x[AttrCallReturnPC-125]
+	_ = x[AttrCallValue-126]
+	_ = x[AttrCallOrigin-127]
+	_ = x[AttrCallParameter-128]
+	_ = x[AttrCallPC-129]
+	_ = x[AttrCallTailCall-130]
+	_ = x[AttrCallTarget-131]
+	_ = x[AttrCallTargetClobbered-132]
+	_ = x[AttrCallDataLocation-133]
+	_ = x[AttrCallDataValue-134]
+	_ = x[AttrNoreturn-135]
+	_ = x[AttrAlignment-136]
+	_ = x[AttrExportSymbols-137]
+	_ = x[AttrDeleted-138]
+	_ = x[AttrDefaulted-139]
+	_ = x[AttrLoclistsBase-140]
+}
+
+const _Attr_name = "SiblingLocationNameOrderingByteSizeBitOffsetBitSizeStmtListLowpcHighpcLanguageDiscrDiscrValueVisibilityImportStringLengthCommonRefCompDirConstValueContainingTypeDefaultValueInlineIsOptionalLowerBoundProducerPrototypedReturnAddrStartScopeStrideSizeUpperBoundAbstractOriginAccessibilityAddrClassArtificialBaseTypesCallingCountDataMemberLocDeclColumnDeclFileDeclLineDeclarationDiscrListEncodingExternalFrameBaseFriendIdentifierCaseMacroInfoNamelistItemPrioritySegmentSpecificationStaticLinkTypeUseLocationVarParamVirtualityVtableElemLocAllocatedAssociatedDataLocationStrideEntrypcUseUTF8ExtensionRangesTrampolineCallColumnCallFileCallLineDescriptionBinaryScaleDecimalScaleSmallDecimalSignDigitCountPictureStringMutableThreadsScaledExplicitObjectPointerEndianityElementalPureRecursiveSignatureMainSubprogramDataBitOffsetConstExprEnumClassLinkageNameStringLengthBitSizeStringLengthByteSizeRankStrOffsetsBaseAddrBaseRnglistsBaseDwoNameReferenceRvalueReferenceMacrosCallAllCallsCallAllSourceCallsCallAllTailCallsCallReturnPCCallValueCallOriginCallParameterCallPCCallTailCallCallTargetCallTargetClobberedCallDataLocationCallDataValueNoreturnAlignmentExportSymbolsDeletedDefaultedLoclistsBase"
 
 var _Attr_map = map[Attr]string{
-	1:  _Attr_name[0:7],
-	2:  _Attr_name[7:15],
-	3:  _Attr_name[15:19],
-	9:  _Attr_name[19:27],
-	11: _Attr_name[27:35],
-	12: _Attr_name[35:44],
-	13: _Attr_name[44:51],
-	16: _Attr_name[51:59],
-	17: _Attr_name[59:64],
-	18: _Attr_name[64:70],
-	19: _Attr_name[70:78],
-	21: _Attr_name[78:83],
-	22: _Attr_name[83:93],
-	23: _Attr_name[93:103],
-	24: _Attr_name[103:109],
-	25: _Attr_name[109:121],
-	26: _Attr_name[121:130],
-	27: _Attr_name[130:137],
-	28: _Attr_name[137:147],
-	29: _Attr_name[147:161],
-	30: _Attr_name[161:173],
-	32: _Attr_name[173:179],
-	33: _Attr_name[179:189],
-	34: _Attr_name[189:199],
-	37: _Attr_name[199:207],
-	39: _Attr_name[207:217],
-	42: _Attr_name[217:227],
-	44: _Attr_name[227:237],
-	46: _Attr_name[237:247],
-	47: _Attr_name[247:257],
-	49: _Attr_name[257:271],
-	50: _Attr_name[271:284],
-	51: _Attr_name[284:293],
-	52: _Attr_name[293:303],
-	53: _Attr_name[303:312],
-	54: _Attr_name[312:319],
-	55: _Attr_name[319:324],
-	56: _Attr_name[324:337],
-	57: _Attr_name[337:347],
-	58: _Attr_name[347:355],
-	59: _Attr_name[355:363],
-	60: _Attr_name[363:374],
-	61: _Attr_name[374:383],
-	62: _Attr_name[383:391],
-	63: _Attr_name[391:399],
-	64: _Attr_name[399:408],
-	65: _Attr_name[408:414],
-	66: _Attr_name[414:428],
-	67: _Attr_name[428:437],
-	68: _Attr_name[437:449],
-	69: _Attr_name[449:457],
-	70: _Attr_name[457:464],
-	71: _Attr_name[464:477],
-	72: _Attr_name[477:487],
-	73: _Attr_name[487:491],
-	74: _Attr_name[491:502],
-	75: _Attr_name[502:510],
-	76: _Attr_name[510:520],
-	77: _Attr_name[520:533],
-	78: _Attr_name[533:542],
-	79: _Attr_name[542:552],
-	80: _Attr_name[552:564],
-	81: _Attr_name[564:570],
-	82: _Attr_name[570:577],
-	83: _Attr_name[577:584],
-	84: _Attr_name[584:593],
-	85: _Attr_name[593:599],
-	86: _Attr_name[599:609],
-	87: _Attr_name[609:619],
-	88: _Attr_name[619:627],
-	89: _Attr_name[627:635],
-	90: _Attr_name[635:646],
+	1:   _Attr_name[0:7],
+	2:   _Attr_name[7:15],
+	3:   _Attr_name[15:19],
+	9:   _Attr_name[19:27],
+	11:  _Attr_name[27:35],
+	12:  _Attr_name[35:44],
+	13:  _Attr_name[44:51],
+	16:  _Attr_name[51:59],
+	17:  _Attr_name[59:64],
+	18:  _Attr_name[64:70],
+	19:  _Attr_name[70:78],
+	21:  _Attr_name[78:83],
+	22:  _Attr_name[83:93],
+	23:  _Attr_name[93:103],
+	24:  _Attr_name[103:109],
+	25:  _Attr_name[109:121],
+	26:  _Attr_name[121:130],
+	27:  _Attr_name[130:137],
+	28:  _Attr_name[137:147],
+	29:  _Attr_name[147:161],
+	30:  _Attr_name[161:173],
+	32:  _Attr_name[173:179],
+	33:  _Attr_name[179:189],
+	34:  _Attr_name[189:199],
+	37:  _Attr_name[199:207],
+	39:  _Attr_name[207:217],
+	42:  _Attr_name[217:227],
+	44:  _Attr_name[227:237],
+	46:  _Attr_name[237:247],
+	47:  _Attr_name[247:257],
+	49:  _Attr_name[257:271],
+	50:  _Attr_name[271:284],
+	51:  _Attr_name[284:293],
+	52:  _Attr_name[293:303],
+	53:  _Attr_name[303:312],
+	54:  _Attr_name[312:319],
+	55:  _Attr_name[319:324],
+	56:  _Attr_name[324:337],
+	57:  _Attr_name[337:347],
+	58:  _Attr_name[347:355],
+	59:  _Attr_name[355:363],
+	60:  _Attr_name[363:374],
+	61:  _Attr_name[374:383],
+	62:  _Attr_name[383:391],
+	63:  _Attr_name[391:399],
+	64:  _Attr_name[399:408],
+	65:  _Attr_name[408:414],
+	66:  _Attr_name[414:428],
+	67:  _Attr_name[428:437],
+	68:  _Attr_name[437:449],
+	69:  _Attr_name[449:457],
+	70:  _Attr_name[457:464],
+	71:  _Attr_name[464:477],
+	72:  _Attr_name[477:487],
+	73:  _Attr_name[487:491],
+	74:  _Attr_name[491:502],
+	75:  _Attr_name[502:510],
+	76:  _Attr_name[510:520],
+	77:  _Attr_name[520:533],
+	78:  _Attr_name[533:542],
+	79:  _Attr_name[542:552],
+	80:  _Attr_name[552:564],
+	81:  _Attr_name[564:570],
+	82:  _Attr_name[570:577],
+	83:  _Attr_name[577:584],
+	84:  _Attr_name[584:593],
+	85:  _Attr_name[593:599],
+	86:  _Attr_name[599:609],
+	87:  _Attr_name[609:619],
+	88:  _Attr_name[619:627],
+	89:  _Attr_name[627:635],
+	90:  _Attr_name[635:646],
+	91:  _Attr_name[646:657],
+	92:  _Attr_name[657:669],
+	93:  _Attr_name[669:674],
+	94:  _Attr_name[674:685],
+	95:  _Attr_name[685:695],
+	96:  _Attr_name[695:708],
+	97:  _Attr_name[708:715],
+	98:  _Attr_name[715:728],
+	99:  _Attr_name[728:736],
+	100: _Attr_name[736:749],
+	101: _Attr_name[749:758],
+	102: _Attr_name[758:767],
+	103: _Attr_name[767:771],
+	104: _Attr_name[771:780],
+	105: _Attr_name[780:789],
+	106: _Attr_name[789:803],
+	107: _Attr_name[803:816],
+	108: _Attr_name[816:825],
+	109: _Attr_name[825:834],
+	110: _Attr_name[834:845],
+	111: _Attr_name[845:864],
+	112: _Attr_name[864:884],
+	113: _Attr_name[884:888],
+	114: _Attr_name[888:902],
+	115: _Attr_name[902:910],
+	116: _Attr_name[910:922],
+	118: _Attr_name[922:929],
+	119: _Attr_name[929:938],
+	120: _Attr_name[938:953],
+	121: _Attr_name[953:959],
+	122: _Attr_name[959:971],
+	123: _Attr_name[971:989],
+	124: _Attr_name[989:1005],
+	125: _Attr_name[1005:1017],
+	126: _Attr_name[1017:1026],
+	127: _Attr_name[1026:1036],
+	128: _Attr_name[1036:1049],
+	129: _Attr_name[1049:1055],
+	130: _Attr_name[1055:1067],
+	131: _Attr_name[1067:1077],
+	132: _Attr_name[1077:1096],
+	133: _Attr_name[1096:1112],
+	134: _Attr_name[1112:1125],
+	135: _Attr_name[1125:1133],
+	136: _Attr_name[1133:1142],
+	137: _Attr_name[1142:1155],
+	138: _Attr_name[1155:1162],
+	139: _Attr_name[1162:1171],
+	140: _Attr_name[1171:1183],
 }
 
 func (i Attr) String() string {
diff --git a/libgo/go/debug/dwarf/buf.go b/libgo/go/debug/dwarf/buf.go
index 24d266d..c3822a0 100644
--- a/libgo/go/debug/dwarf/buf.go
+++ b/libgo/go/debug/dwarf/buf.go
@@ -7,6 +7,7 @@
 package dwarf
 
 import (
+	"bytes"
 	"encoding/binary"
 	"strconv"
 )
@@ -79,16 +80,16 @@
 func (b *buf) skip(n int) { b.bytes(n) }
 
 func (b *buf) string() string {
-	for i := 0; i < len(b.data); i++ {
-		if b.data[i] == 0 {
-			s := string(b.data[0:i])
-			b.data = b.data[i+1:]
-			b.off += Offset(i + 1)
-			return s
-		}
+	i := bytes.IndexByte(b.data, 0)
+	if i < 0 {
+		b.error("underflow")
+		return ""
 	}
-	b.error("underflow")
-	return ""
+
+	s := string(b.data[0:i])
+	b.data = b.data[i+1:]
+	b.off += Offset(i + 1)
+	return s
 }
 
 func (b *buf) uint16() uint16 {
@@ -99,6 +100,18 @@
 	return b.order.Uint16(a)
 }
 
+func (b *buf) uint24() uint32 {
+	a := b.bytes(3)
+	if a == nil {
+		return 0
+	}
+	if b.dwarf.bigEndian {
+		return uint32(a[2]) | uint32(a[1])<<8 | uint32(a[0])<<16
+	} else {
+		return uint32(a[0]) | uint32(a[1])<<8 | uint32(a[2])<<16
+	}
+}
+
 func (b *buf) uint32() uint32 {
 	a := b.bytes(4)
 	if a == nil {
diff --git a/libgo/go/debug/dwarf/class_string.go b/libgo/go/debug/dwarf/class_string.go
index a6aabff..76de7ca 100644
--- a/libgo/go/debug/dwarf/class_string.go
+++ b/libgo/go/debug/dwarf/class_string.go
@@ -4,6 +4,27 @@
 
 import "strconv"
 
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[ClassUnknown-0]
+	_ = x[ClassAddress-1]
+	_ = x[ClassBlock-2]
+	_ = x[ClassConstant-3]
+	_ = x[ClassExprLoc-4]
+	_ = x[ClassFlag-5]
+	_ = x[ClassLinePtr-6]
+	_ = x[ClassLocListPtr-7]
+	_ = x[ClassMacPtr-8]
+	_ = x[ClassRangeListPtr-9]
+	_ = x[ClassReference-10]
+	_ = x[ClassReferenceSig-11]
+	_ = x[ClassString-12]
+	_ = x[ClassReferenceAlt-13]
+	_ = x[ClassStringAlt-14]
+}
+
 const _Class_name = "ClassUnknownClassAddressClassBlockClassConstantClassExprLocClassFlagClassLinePtrClassLocListPtrClassMacPtrClassRangeListPtrClassReferenceClassReferenceSigClassStringClassReferenceAltClassStringAlt"
 
 var _Class_index = [...]uint8{0, 12, 24, 34, 47, 59, 68, 80, 95, 106, 123, 137, 154, 165, 182, 196}
diff --git a/libgo/go/debug/dwarf/const.go b/libgo/go/debug/dwarf/const.go
index 4dda83e..b11bf90 100644
--- a/libgo/go/debug/dwarf/const.go
+++ b/libgo/go/debug/dwarf/const.go
@@ -71,19 +71,71 @@
 	AttrVarParam       Attr = 0x4B
 	AttrVirtuality     Attr = 0x4C
 	AttrVtableElemLoc  Attr = 0x4D
-	AttrAllocated      Attr = 0x4E
-	AttrAssociated     Attr = 0x4F
-	AttrDataLocation   Attr = 0x50
-	AttrStride         Attr = 0x51
-	AttrEntrypc        Attr = 0x52
-	AttrUseUTF8        Attr = 0x53
-	AttrExtension      Attr = 0x54
-	AttrRanges         Attr = 0x55
-	AttrTrampoline     Attr = 0x56
-	AttrCallColumn     Attr = 0x57
-	AttrCallFile       Attr = 0x58
-	AttrCallLine       Attr = 0x59
-	AttrDescription    Attr = 0x5A
+	// The following are new in DWARF 3.
+	AttrAllocated     Attr = 0x4E
+	AttrAssociated    Attr = 0x4F
+	AttrDataLocation  Attr = 0x50
+	AttrStride        Attr = 0x51
+	AttrEntrypc       Attr = 0x52
+	AttrUseUTF8       Attr = 0x53
+	AttrExtension     Attr = 0x54
+	AttrRanges        Attr = 0x55
+	AttrTrampoline    Attr = 0x56
+	AttrCallColumn    Attr = 0x57
+	AttrCallFile      Attr = 0x58
+	AttrCallLine      Attr = 0x59
+	AttrDescription   Attr = 0x5A
+	AttrBinaryScale   Attr = 0x5B
+	AttrDecimalScale  Attr = 0x5C
+	AttrSmall         Attr = 0x5D
+	AttrDecimalSign   Attr = 0x5E
+	AttrDigitCount    Attr = 0x5F
+	AttrPictureString Attr = 0x60
+	AttrMutable       Attr = 0x61
+	AttrThreadsScaled Attr = 0x62
+	AttrExplicit      Attr = 0x63
+	AttrObjectPointer Attr = 0x64
+	AttrEndianity     Attr = 0x65
+	AttrElemental     Attr = 0x66
+	AttrPure          Attr = 0x67
+	AttrRecursive     Attr = 0x68
+	// The following are new in DWARF 4.
+	AttrSignature      Attr = 0x69
+	AttrMainSubprogram Attr = 0x6A
+	AttrDataBitOffset  Attr = 0x6B
+	AttrConstExpr      Attr = 0x6C
+	AttrEnumClass      Attr = 0x6D
+	AttrLinkageName    Attr = 0x6E
+	// The following are new in DWARF 5.
+	AttrStringLengthBitSize  Attr = 0x6F
+	AttrStringLengthByteSize Attr = 0x70
+	AttrRank                 Attr = 0x71
+	AttrStrOffsetsBase       Attr = 0x72
+	AttrAddrBase             Attr = 0x73
+	AttrRnglistsBase         Attr = 0x74
+	AttrDwoName              Attr = 0x76
+	AttrReference            Attr = 0x77
+	AttrRvalueReference      Attr = 0x78
+	AttrMacros               Attr = 0x79
+	AttrCallAllCalls         Attr = 0x7A
+	AttrCallAllSourceCalls   Attr = 0x7B
+	AttrCallAllTailCalls     Attr = 0x7C
+	AttrCallReturnPC         Attr = 0x7D
+	AttrCallValue            Attr = 0x7E
+	AttrCallOrigin           Attr = 0x7F
+	AttrCallParameter        Attr = 0x80
+	AttrCallPC               Attr = 0x81
+	AttrCallTailCall         Attr = 0x82
+	AttrCallTarget           Attr = 0x83
+	AttrCallTargetClobbered  Attr = 0x84
+	AttrCallDataLocation     Attr = 0x85
+	AttrCallDataValue        Attr = 0x86
+	AttrNoreturn             Attr = 0x87
+	AttrAlignment            Attr = 0x88
+	AttrExportSymbols        Attr = 0x89
+	AttrDeleted              Attr = 0x8A
+	AttrDefaulted            Attr = 0x8B
+	AttrLoclistsBase         Attr = 0x8C
 )
 
 func (a Attr) GoString() string {
@@ -124,6 +176,25 @@
 	formExprloc     format = 0x18
 	formFlagPresent format = 0x19
 	formRefSig8     format = 0x20
+	// The following are new in DWARF 5.
+	formStrx          format = 0x1A
+	formAddrx         format = 0x1B
+	formRefSup4       format = 0x1C
+	formStrpSup       format = 0x1D
+	formData16        format = 0x1E
+	formLineStrp      format = 0x1F
+	formImplicitConst format = 0x21
+	formLoclistx      format = 0x22
+	formRnglistx      format = 0x23
+	formRefSup8       format = 0x24
+	formStrx1         format = 0x25
+	formStrx2         format = 0x26
+	formStrx3         format = 0x27
+	formStrx4         format = 0x28
+	formAddrx1        format = 0x29
+	formAddrx2        format = 0x2A
+	formAddrx3        format = 0x2B
+	formAddrx4        format = 0x2C
 	// Extensions for multi-file compression (.dwz)
 	// http://www.dwarfstd.org/ShowIssue.php?issue=120604.1
 	formGnuRefAlt  format = 0x1f20
@@ -199,6 +270,15 @@
 	TagTypeUnit            Tag = 0x41
 	TagRvalueReferenceType Tag = 0x42
 	TagTemplateAlias       Tag = 0x43
+	// The following are new in DWARF 5.
+	TagCoarrayType       Tag = 0x44
+	TagGenericSubrange   Tag = 0x45
+	TagDynamicType       Tag = 0x46
+	TagAtomicType        Tag = 0x47
+	TagCallSite          Tag = 0x48
+	TagCallSiteParameter Tag = 0x49
+	TagSkeletonUnit      Tag = 0x4A
+	TagImmutableType     Tag = 0x4B
 )
 
 func (t Tag) GoString() string {
@@ -269,25 +349,54 @@
 	opDerefSize  = 0x94 /* 1-byte size of data retrieved */
 	opXderefSize = 0x95 /* 1-byte size of data retrieved */
 	opNop        = 0x96
-	/* next four new in Dwarf v3 */
-	opPushObjAddr = 0x97
-	opCall2       = 0x98 /* 2-byte offset of DIE */
-	opCall4       = 0x99 /* 4-byte offset of DIE */
-	opCallRef     = 0x9A /* 4- or 8- byte offset of DIE */
+	// The following are new in DWARF 3.
+	opPushObjAddr    = 0x97
+	opCall2          = 0x98 /* 2-byte offset of DIE */
+	opCall4          = 0x99 /* 4-byte offset of DIE */
+	opCallRef        = 0x9A /* 4- or 8- byte offset of DIE */
+	opFormTLSAddress = 0x9B
+	opCallFrameCFA   = 0x9C
+	opBitPiece       = 0x9D
+	// The following are new in DWARF 4.
+	opImplicitValue = 0x9E
+	opStackValue    = 0x9F
+	// The following a new in DWARF 5.
+	opImplicitPointer = 0xA0
+	opAddrx           = 0xA1
+	opConstx          = 0xA2
+	opEntryValue      = 0xA3
+	opConstType       = 0xA4
+	opRegvalType      = 0xA5
+	opDerefType       = 0xA6
+	opXderefType      = 0xA7
+	opConvert         = 0xA8
+	opReinterpret     = 0xA9
 	/* 0xE0-0xFF reserved for user-specific */
 )
 
 // Basic type encodings -- the value for AttrEncoding in a TagBaseType Entry.
 const (
-	encAddress        = 0x01
-	encBoolean        = 0x02
-	encComplexFloat   = 0x03
-	encFloat          = 0x04
-	encSigned         = 0x05
-	encSignedChar     = 0x06
-	encUnsigned       = 0x07
-	encUnsignedChar   = 0x08
+	encAddress      = 0x01
+	encBoolean      = 0x02
+	encComplexFloat = 0x03
+	encFloat        = 0x04
+	encSigned       = 0x05
+	encSignedChar   = 0x06
+	encUnsigned     = 0x07
+	encUnsignedChar = 0x08
+	// The following are new in DWARF 3.
 	encImaginaryFloat = 0x09
+	encPackedDecimal  = 0x0A
+	encNumericString  = 0x0B
+	encEdited         = 0x0C
+	encSignedFixed    = 0x0D
+	encUnsignedFixed  = 0x0E
+	encDecimalFloat   = 0x0F
+	// The following are new in DWARF 4.
+	encUTF = 0x10
+	// The following are new in DWARF 5.
+	encUCS   = 0x11
+	encASCII = 0x12
 )
 
 // Statement program standard opcode encodings.
@@ -317,3 +426,38 @@
 	// DWARF 4
 	lneSetDiscriminator = 4
 )
+
+// Line table directory directory and file name entry formats.
+// These are new in DWARF 5.
+const (
+	lnctPath           = 0x01
+	lnctDirectoryIndex = 0x02
+	lnctTimestamp      = 0x03
+	lnctSize           = 0x04
+	lnctMD5            = 0x05
+)
+
+// Location list entry codes.
+// These are new in DWARF 5.
+const (
+	lleEndOfList       = 0x00
+	lleBaseAddressx    = 0x01
+	lleStartxEndx      = 0x02
+	lleStartxLength    = 0x03
+	lleOffsetPair      = 0x04
+	lleDefaultLocation = 0x05
+	lleBaseAddress     = 0x06
+	lleStartEnd        = 0x07
+	lleStartLength     = 0x08
+)
+
+// Unit header unit type encodings.
+// These are new in DWARF 5.
+const (
+	utCompile      = 0x01
+	utType         = 0x02
+	utPartial      = 0x03
+	utSkeleton     = 0x04
+	utSplitCompile = 0x05
+	utSplitType    = 0x06
+)
diff --git a/libgo/go/debug/dwarf/entry.go b/libgo/go/debug/dwarf/entry.go
index 6be0700..01f2190 100644
--- a/libgo/go/debug/dwarf/entry.go
+++ b/libgo/go/debug/dwarf/entry.go
@@ -11,6 +11,7 @@
 package dwarf
 
 import (
+	"encoding/binary"
 	"errors"
 	"strconv"
 )
@@ -26,6 +27,7 @@
 	attr  Attr
 	fmt   format
 	class Class
+	val   int64 // for formImplicitConst
 }
 
 // a map from entry format ids to their descriptions
@@ -67,6 +69,9 @@
 			if tag == 0 && fmt == 0 {
 				break
 			}
+			if format(fmt) == formImplicitConst {
+				b1.int()
+			}
 			n++
 		}
 		if b1.err != nil {
@@ -82,6 +87,9 @@
 			a.field[i].attr = Attr(b.uint())
 			a.field[i].fmt = format(b.uint())
 			a.field[i].class = formToClass(a.field[i].fmt, a.field[i].attr, vers, &b)
+			if a.field[i].fmt == formImplicitConst {
+				a.field[i].val = b.int()
+			}
 		}
 		b.uint()
 		b.uint()
@@ -137,6 +145,11 @@
 	AttrUseLocation:   ClassLocListPtr,
 	AttrVtableElemLoc: ClassLocListPtr,
 	AttrRanges:        ClassRangeListPtr,
+	// The following are new in DWARF 5.
+	AttrStrOffsetsBase: ClassStrOffsetsPtr,
+	AttrAddrBase:       ClassAddrPtr,
+	AttrRnglistsBase:   ClassRngListsPtr,
+	AttrLoclistsBase:   ClassLocListPtr,
 }
 
 // formToClass returns the DWARF 4 Class for the given form. If the
@@ -148,7 +161,10 @@
 		b.error("cannot determine class of unknown attribute form")
 		return 0
 
-	case formAddr:
+	case formIndirect:
+		return ClassUnknown
+
+	case formAddr, formAddrx, formAddrx1, formAddrx2, formAddrx3, formAddrx4:
 		return ClassAddress
 
 	case formDwarfBlock1, formDwarfBlock2, formDwarfBlock4, formDwarfBlock:
@@ -163,7 +179,7 @@
 		}
 		return ClassBlock
 
-	case formData1, formData2, formData4, formData8, formSdata, formUdata:
+	case formData1, formData2, formData4, formData8, formSdata, formUdata, formData16, formImplicitConst:
 		// In DWARF 2 and 3, ClassPtr was encoded as a
 		// constant. Unlike ClassExprLoc/ClassBlock, some
 		// DWARF 4 attributes need to distinguish Class*Ptr
@@ -177,13 +193,13 @@
 	case formFlag, formFlagPresent:
 		return ClassFlag
 
-	case formRefAddr, formRef1, formRef2, formRef4, formRef8, formRefUdata:
+	case formRefAddr, formRef1, formRef2, formRef4, formRef8, formRefUdata, formRefSup4, formRefSup8:
 		return ClassReference
 
 	case formRefSig8:
 		return ClassReferenceSig
 
-	case formString, formStrp:
+	case formString, formStrp, formStrx, formStrpSup, formLineStrp, formStrx1, formStrx2, formStrx3, formStrx4:
 		return ClassString
 
 	case formSecOffset:
@@ -203,6 +219,12 @@
 
 	case formGnuStrpAlt:
 		return ClassStringAlt
+
+	case formLoclistx:
+		return ClassLocList
+
+	case formRnglistx:
+		return ClassRngList
 	}
 }
 
@@ -324,6 +346,27 @@
 	// offset into the DWARF string section of an alternate object
 	// file.
 	ClassStringAlt
+
+	// ClassAddrPtr represents values that are an int64 offset
+	// into the "addr" section.
+	ClassAddrPtr
+
+	// ClassLocList represents values that are an int64 offset
+	// into the "loclists" section.
+	ClassLocList
+
+	// ClassRngList represents values that are an int64 offset
+	// from the base of the "rnglists" section.
+	ClassRngList
+
+	// ClassRngListsPtr represents values that are an int64 offset
+	// into the "rnglists" section. These are used as the base for
+	// ClassRngList values.
+	ClassRngListsPtr
+
+	// ClassStrOffsetsPtr represents values that are an int64
+	// offset into the "str_offsets" section.
+	ClassStrOffsetsPtr
 )
 
 //go:generate stringer -type=Class
@@ -363,7 +406,7 @@
 
 // Entry reads a single entry from buf, decoding
 // according to the given abbreviation table.
-func (b *buf) entry(atab abbrevTable, ubase Offset) *Entry {
+func (b *buf) entry(cu *Entry, atab abbrevTable, ubase Offset, vers int) *Entry {
 	off := b.off
 	id := uint32(b.uint())
 	if id == 0 {
@@ -386,6 +429,7 @@
 		fmt := a.field[i].fmt
 		if fmt == formIndirect {
 			fmt = format(b.uint())
+			e.Field[i].Class = formToClass(fmt, a.field[i].attr, vers, b)
 		}
 		var val interface{}
 		switch fmt {
@@ -395,6 +439,54 @@
 		// address
 		case formAddr:
 			val = b.addr()
+		case formAddrx, formAddrx1, formAddrx2, formAddrx3, formAddrx4:
+			var off uint64
+			switch fmt {
+			case formAddrx:
+				off = b.uint()
+			case formAddrx1:
+				off = uint64(b.uint8())
+			case formAddrx2:
+				off = uint64(b.uint16())
+			case formAddrx3:
+				off = uint64(b.uint24())
+			case formAddrx4:
+				off = uint64(b.uint32())
+			}
+			if len(b.dwarf.addr) == 0 {
+				b.error("DW_FORM_addrx with no .debug_addr section")
+			}
+			if b.err != nil {
+				return nil
+			}
+			addrsize := b.format.addrsize()
+			if addrsize == 0 {
+				b.error("unknown address size for DW_FORM_addrx")
+			}
+			off *= uint64(addrsize)
+
+			// We have to adjust by the offset of the
+			// compilation unit. This won't work if the
+			// program uses Reader.Seek to skip over the
+			// unit. Not much we can do about that.
+			if cu != nil {
+				cuOff, ok := cu.Val(AttrAddrBase).(int64)
+				if ok {
+					off += uint64(cuOff)
+				}
+			}
+
+			if uint64(int(off)) != off {
+				b.error("DW_FORM_addrx offset out of range")
+			}
+
+			b1 := makeBuf(b.dwarf, b.format, "addr", 0, b.dwarf.addr)
+			b1.skip(int(off))
+			val = b1.addr()
+			if b1.err != nil {
+				b.err = b1.err
+				return nil
+			}
 
 		// block
 		case formDwarfBlock1:
@@ -415,10 +507,14 @@
 			val = int64(b.uint32())
 		case formData8:
 			val = int64(b.uint64())
+		case formData16:
+			val = b.bytes(16)
 		case formSdata:
 			val = int64(b.int())
 		case formUdata:
 			val = int64(b.uint())
+		case formImplicitConst:
+			val = a.field[i].val
 
 		// flag
 		case formFlag:
@@ -460,29 +556,112 @@
 		// string
 		case formString:
 			val = b.string()
-		case formStrp:
+		case formStrp, formLineStrp:
 			var off uint64 // offset into .debug_str
 			is64, known := b.format.dwarf64()
 			if !known {
-				b.error("unknown size for DW_FORM_strp")
+				b.error("unknown size for DW_FORM_strp/line_strp")
 			} else if is64 {
 				off = b.uint64()
 			} else {
 				off = uint64(b.uint32())
 			}
 			if uint64(int(off)) != off {
-				b.error("DW_FORM_strp offset out of range")
+				b.error("DW_FORM_strp/line_strp offset out of range")
 			}
 			if b.err != nil {
 				return nil
 			}
-			b1 := makeBuf(b.dwarf, unknownFormat{}, "str", 0, b.dwarf.str)
+			var b1 buf
+			if fmt == formStrp {
+				b1 = makeBuf(b.dwarf, b.format, "str", 0, b.dwarf.str)
+			} else {
+				if len(b.dwarf.lineStr) == 0 {
+					b.error("DW_FORM_line_strp with no .debug_line_str section")
+				}
+				b1 = makeBuf(b.dwarf, b.format, "line_str", 0, b.dwarf.lineStr)
+			}
 			b1.skip(int(off))
 			val = b1.string()
 			if b1.err != nil {
 				b.err = b1.err
 				return nil
 			}
+		case formStrx, formStrx1, formStrx2, formStrx3, formStrx4:
+			var off uint64
+			switch fmt {
+			case formStrx:
+				off = b.uint()
+			case formStrx1:
+				off = uint64(b.uint8())
+			case formStrx2:
+				off = uint64(b.uint16())
+			case formStrx3:
+				off = uint64(b.uint24())
+			case formStrx4:
+				off = uint64(b.uint32())
+			}
+			if len(b.dwarf.strOffsets) == 0 {
+				b.error("DW_FORM_strx with no .debug_str_offsets section")
+			}
+			is64, known := b.format.dwarf64()
+			if !known {
+				b.error("unknown offset size for DW_FORM_strx")
+			}
+			if b.err != nil {
+				return nil
+			}
+			if is64 {
+				off *= 8
+			} else {
+				off *= 4
+			}
+
+			// We have to adjust by the offset of the
+			// compilation unit. This won't work if the
+			// program uses Reader.Seek to skip over the
+			// unit. Not much we can do about that.
+			if cu != nil {
+				cuOff, ok := cu.Val(AttrStrOffsetsBase).(int64)
+				if ok {
+					off += uint64(cuOff)
+				}
+			}
+
+			if uint64(int(off)) != off {
+				b.error("DW_FORM_strx offset out of range")
+			}
+
+			b1 := makeBuf(b.dwarf, b.format, "str_offsets", 0, b.dwarf.strOffsets)
+			b1.skip(int(off))
+			if is64 {
+				off = b1.uint64()
+			} else {
+				off = uint64(b1.uint32())
+			}
+			if b1.err != nil {
+				b.err = b1.err
+				return nil
+			}
+			if uint64(int(off)) != off {
+				b.error("DW_FORM_strx indirect offset out of range")
+			}
+			b1 = makeBuf(b.dwarf, b.format, "str", 0, b.dwarf.str)
+			b1.skip(int(off))
+			val = b1.string()
+			if b1.err != nil {
+				b.err = b1.err
+				return nil
+			}
+		case formStrpSup:
+			is64, known := b.format.dwarf64()
+			if !known {
+				b.error("unknown size for DW_FORM_strp_sup")
+			} else if is64 {
+				val = b.uint64()
+			} else {
+				val = b.uint32()
+			}
 
 		// lineptr, loclistptr, macptr, rangelistptr
 		// New in DWARF 4, but clang can generate them with -gdwarf-2.
@@ -507,6 +686,18 @@
 		case formRefSig8:
 			// 64-bit type signature.
 			val = b.uint64()
+		case formRefSup4:
+			val = b.uint32()
+		case formRefSup8:
+			val = b.uint64()
+
+		// loclist
+		case formLoclistx:
+			val = b.uint()
+
+		// rnglist
+		case formRnglistx:
+			val = b.uint()
 		}
 		e.Field[i].Val = val
 	}
@@ -528,6 +719,7 @@
 	unit         int
 	lastChildren bool   // .Children of last entry returned by Next
 	lastSibling  Offset // .Val(AttrSibling) of last entry returned by Next
+	cu           *Entry // current compilation unit
 }
 
 // Reader returns a new Reader for Data.
@@ -544,6 +736,11 @@
 	return r.d.unit[r.unit].asize
 }
 
+// ByteOrder returns the byte order in the current compilation unit.
+func (r *Reader) ByteOrder() binary.ByteOrder {
+	return r.b.order
+}
+
 // Seek positions the Reader at offset off in the encoded entry stream.
 // Offset 0 can be used to denote the first entry.
 func (r *Reader) Seek(off Offset) {
@@ -557,6 +754,7 @@
 		u := &d.unit[0]
 		r.unit = 0
 		r.b = makeBuf(r.d, u, "info", u.off, u.data)
+		r.cu = nil
 		return
 	}
 
@@ -565,6 +763,9 @@
 		r.err = errors.New("offset out of range")
 		return
 	}
+	if i != r.unit {
+		r.cu = nil
+	}
 	u := &d.unit[i]
 	r.unit = i
 	r.b = makeBuf(r.d, u, "info", off, u.data[off-u.off:])
@@ -576,6 +777,7 @@
 		r.unit++
 		u := &r.d.unit[r.unit]
 		r.b = makeBuf(r.d, u, "info", u.off, u.data)
+		r.cu = nil
 	}
 }
 
@@ -592,7 +794,7 @@
 		return nil, nil
 	}
 	u := &r.d.unit[r.unit]
-	e := r.b.entry(u.atable, u.base)
+	e := r.b.entry(r.cu, u.atable, u.base, u.vers)
 	if r.b.err != nil {
 		r.err = r.b.err
 		return nil, r.err
@@ -602,6 +804,9 @@
 		if r.lastChildren {
 			r.lastSibling, _ = e.Val(AttrSibling).(Offset)
 		}
+		if e.Tag == TagCompileUnit || e.Tag == TagPartialUnit {
+			r.cu = e
+		}
 	} else {
 		r.lastChildren = false
 	}
@@ -734,7 +939,7 @@
 			}
 			u := &d.unit[i]
 			b := makeBuf(d, u, "info", u.off, u.data)
-			cu = b.entry(u.atable, u.base)
+			cu = b.entry(nil, u.atable, u.base, u.vers)
 			if b.err != nil {
 				return nil, b.err
 			}
diff --git a/libgo/go/debug/dwarf/entry_test.go b/libgo/go/debug/dwarf/entry_test.go
index 58f3023..4c9aad2 100644
--- a/libgo/go/debug/dwarf/entry_test.go
+++ b/libgo/go/debug/dwarf/entry_test.go
@@ -6,6 +6,7 @@
 
 import (
 	. "debug/dwarf"
+	"encoding/binary"
 	"reflect"
 	"testing"
 )
@@ -141,8 +142,10 @@
 	// compilation unit except by using XCOFF, so this is
 	// hand-written.
 	tests := []struct {
-		name string
-		info []byte
+		name      string
+		info      []byte
+		addrSize  int
+		byteOrder binary.ByteOrder
 	}{
 		{
 			"32-bit little",
@@ -157,6 +160,7 @@
 				0, 0, 0, 0, 0, 0, 0, 0,
 				0, 0, 0, 0, 0, 0, 0, 0,
 			},
+			8, binary.LittleEndian,
 		},
 		{
 			"64-bit little",
@@ -171,6 +175,7 @@
 				0, 0, 0, 0, 0, 0, 0, 0,
 				0, 0, 0, 0, 0, 0, 0, 0,
 			},
+			8, binary.LittleEndian,
 		},
 		{
 			"64-bit big",
@@ -185,13 +190,22 @@
 				0, 0, 0, 0, 0, 0, 0, 0,
 				0, 0, 0, 0, 0, 0, 0, 0,
 			},
+			8, binary.BigEndian,
 		},
 	}
 
 	for _, test := range tests {
-		_, err := New(nil, nil, nil, test.info, nil, nil, nil, nil)
+		data, err := New(nil, nil, nil, test.info, nil, nil, nil, nil)
 		if err != nil {
 			t.Errorf("%s: %v", test.name, err)
 		}
+
+		r := data.Reader()
+		if r.AddressSize() != test.addrSize {
+			t.Errorf("%s: got address size %d, want %d", test.name, r.AddressSize(), test.addrSize)
+		}
+		if r.ByteOrder() != test.byteOrder {
+			t.Errorf("%s: got byte order %s, want %s", test.name, r.ByteOrder(), test.byteOrder)
+		}
 	}
 }
diff --git a/libgo/go/debug/dwarf/line.go b/libgo/go/debug/dwarf/line.go
index b862b49..7692f05 100644
--- a/libgo/go/debug/dwarf/line.go
+++ b/libgo/go/debug/dwarf/line.go
@@ -23,8 +23,13 @@
 	// Original .debug_line section data. Used by Seek.
 	section []byte
 
+	str     []byte // .debug_str
+	lineStr []byte // .debug_line_str
+
 	// Header information
 	version              uint16
+	addrsize             int
+	segmentSelectorSize  int
 	minInstructionLength int
 	maxOpsPerInstruction int
 	defaultIsStmt        bool
@@ -158,10 +163,15 @@
 	u := &d.unit[d.offsetToUnit(cu.Offset)]
 	buf := makeBuf(d, u, "line", Offset(off), d.line[off:])
 	// The compilation directory is implicitly directories[0].
-	r := LineReader{buf: buf, section: d.line, directories: []string{compDir}}
+	r := LineReader{
+		buf:     buf,
+		section: d.line,
+		str:     d.str,
+		lineStr: d.lineStr,
+	}
 
 	// Read the header.
-	if err := r.readHeader(); err != nil {
+	if err := r.readHeader(compDir); err != nil {
 		return nil, err
 	}
 
@@ -173,7 +183,7 @@
 
 // readHeader reads the line number program header from r.buf and sets
 // all of the header fields in r.
-func (r *LineReader) readHeader() error {
+func (r *LineReader) readHeader(compDir string) error {
 	buf := &r.buf
 
 	// Read basic header fields [DWARF2 6.2.4].
@@ -184,7 +194,7 @@
 		return DecodeError{"line", hdrOffset, fmt.Sprintf("line table end %d exceeds section size %d", r.endOffset, buf.off+Offset(len(buf.data)))}
 	}
 	r.version = buf.uint16()
-	if buf.err == nil && (r.version < 2 || r.version > 4) {
+	if buf.err == nil && (r.version < 2 || r.version > 5) {
 		// DWARF goes to all this effort to make new opcodes
 		// backward-compatible, and then adds fields right in
 		// the middle of the header in new versions, so we're
@@ -192,6 +202,13 @@
 		// versions.
 		return DecodeError{"line", hdrOffset, fmt.Sprintf("unknown line table version %d", r.version)}
 	}
+	if r.version >= 5 {
+		r.addrsize = int(buf.uint8())
+		r.segmentSelectorSize = int(buf.uint8())
+	} else {
+		r.addrsize = buf.format.addrsize()
+		r.segmentSelectorSize = 0
+	}
 	var headerLength Offset
 	if dwarf64 {
 		headerLength = Offset(buf.uint64())
@@ -238,39 +255,170 @@
 		}
 	}
 
-	// Read include directories table. The caller already set
-	// directories[0] to the compilation directory.
-	for {
-		directory := buf.string()
-		if buf.err != nil {
-			return buf.err
+	if r.version < 5 {
+		// Read include directories table.
+		r.directories = []string{compDir}
+		for {
+			directory := buf.string()
+			if buf.err != nil {
+				return buf.err
+			}
+			if len(directory) == 0 {
+				break
+			}
+			if !pathIsAbs(directory) {
+				// Relative paths are implicitly relative to
+				// the compilation directory.
+				directory = pathJoin(compDir, directory)
+			}
+			r.directories = append(r.directories, directory)
 		}
-		if len(directory) == 0 {
-			break
+
+		// Read file name list. File numbering starts with 1,
+		// so leave the first entry nil.
+		r.fileEntries = make([]*LineFile, 1)
+		for {
+			if done, err := r.readFileEntry(); err != nil {
+				return err
+			} else if done {
+				break
+			}
 		}
-		if !pathIsAbs(directory) {
-			// Relative paths are implicitly relative to
-			// the compilation directory.
-			directory = pathJoin(r.directories[0], directory)
+	} else {
+		dirFormat := r.readLNCTFormat()
+		c := buf.uint()
+		r.directories = make([]string, c)
+		for i := range r.directories {
+			dir, _, _, err := r.readLNCT(dirFormat, dwarf64)
+			if err != nil {
+				return err
+			}
+			r.directories[i] = dir
 		}
-		r.directories = append(r.directories, directory)
+		fileFormat := r.readLNCTFormat()
+		c = buf.uint()
+		r.fileEntries = make([]*LineFile, c)
+		for i := range r.fileEntries {
+			name, mtime, size, err := r.readLNCT(fileFormat, dwarf64)
+			if err != nil {
+				return err
+			}
+			r.fileEntries[i] = &LineFile{name, mtime, int(size)}
+		}
 	}
 
-	// Read file name list. File numbering starts with 1, so leave
-	// the first entry nil.
-	r.fileEntries = make([]*LineFile, 1)
-	for {
-		if done, err := r.readFileEntry(); err != nil {
-			return err
-		} else if done {
-			break
-		}
-	}
 	r.initialFileEntries = len(r.fileEntries)
 
 	return buf.err
 }
 
+// lnctForm is a pair of an LNCT code and a form. This represents an
+// entry in the directory name or file name description in the DWARF 5
+// line number program header.
+type lnctForm struct {
+	lnct int
+	form format
+}
+
+// readLNCTFormat reads an LNCT format description.
+func (r *LineReader) readLNCTFormat() []lnctForm {
+	c := r.buf.uint8()
+	ret := make([]lnctForm, c)
+	for i := range ret {
+		ret[i].lnct = int(r.buf.uint())
+		ret[i].form = format(r.buf.uint())
+	}
+	return ret
+}
+
+// readLNCT reads a sequence of LNCT entries and returns path information.
+func (r *LineReader) readLNCT(s []lnctForm, dwarf64 bool) (path string, mtime uint64, size uint64, err error) {
+	var dir string
+	for _, lf := range s {
+		var str string
+		var val uint64
+		switch lf.form {
+		case formString:
+			str = r.buf.string()
+		case formStrp, formLineStrp:
+			var off uint64
+			if dwarf64 {
+				off = r.buf.uint64()
+			} else {
+				off = uint64(r.buf.uint32())
+			}
+			if uint64(int(off)) != off {
+				return "", 0, 0, DecodeError{"line", r.buf.off, "strp/line_strp offset out of range"}
+			}
+			var b1 buf
+			if lf.form == formStrp {
+				b1 = makeBuf(r.buf.dwarf, r.buf.format, "str", 0, r.str)
+			} else {
+				b1 = makeBuf(r.buf.dwarf, r.buf.format, "line_str", 0, r.lineStr)
+			}
+			b1.skip(int(off))
+			str = b1.string()
+			if b1.err != nil {
+				return "", 0, 0, DecodeError{"line", r.buf.off, b1.err.Error()}
+			}
+		case formStrpSup:
+			// Supplemental sections not yet supported.
+			if dwarf64 {
+				r.buf.uint64()
+			} else {
+				r.buf.uint32()
+			}
+		case formStrx:
+			// .debug_line.dwo sections not yet supported.
+			r.buf.uint()
+		case formStrx1:
+			r.buf.uint8()
+		case formStrx2:
+			r.buf.uint16()
+		case formStrx3:
+			r.buf.uint24()
+		case formStrx4:
+			r.buf.uint32()
+		case formData1:
+			val = uint64(r.buf.uint8())
+		case formData2:
+			val = uint64(r.buf.uint16())
+		case formData4:
+			val = uint64(r.buf.uint32())
+		case formData8:
+			val = r.buf.uint64()
+		case formData16:
+			r.buf.bytes(16)
+		case formDwarfBlock:
+			r.buf.bytes(int(r.buf.uint()))
+		case formUdata:
+			val = r.buf.uint()
+		}
+
+		switch lf.lnct {
+		case lnctPath:
+			path = str
+		case lnctDirectoryIndex:
+			if val >= uint64(len(r.directories)) {
+				return "", 0, 0, DecodeError{"line", r.buf.off, "directory index out of range"}
+			}
+			dir = r.directories[val]
+		case lnctTimestamp:
+			mtime = val
+		case lnctSize:
+			size = val
+		case lnctMD5:
+			// Ignored.
+		}
+	}
+
+	if dir != "" && path != "" {
+		path = pathJoin(dir, path)
+	}
+
+	return path, mtime, size, nil
+}
+
 // readFileEntry reads a file entry from either the header or a
 // DW_LNE_define_file extended opcode and adds it to r.fileEntries. A
 // true return value indicates that there are no more entries to read.
@@ -293,6 +441,19 @@
 	mtime := r.buf.uint()
 	length := int(r.buf.uint())
 
+	// If this is a dynamically added path and the cursor was
+	// backed up, we may have already added this entry. Avoid
+	// updating existing line table entries in this case. This
+	// avoids an allocation and potential racy access to the slice
+	// backing store if the user called Files.
+	if len(r.fileEntries) < cap(r.fileEntries) {
+		fe := r.fileEntries[:len(r.fileEntries)+1]
+		if fe[len(fe)-1] != nil {
+			// We already processed this addition.
+			r.fileEntries = fe
+			return false, nil
+		}
+	}
 	r.fileEntries = append(r.fileEntries, &LineFile{name, mtime, length})
 	return false, nil
 }
@@ -381,7 +542,18 @@
 			r.resetState()
 
 		case lneSetAddress:
-			r.state.Address = r.buf.addr()
+			switch r.addrsize {
+			case 1:
+				r.state.Address = uint64(r.buf.uint8())
+			case 2:
+				r.state.Address = uint64(r.buf.uint16())
+			case 4:
+				r.state.Address = uint64(r.buf.uint32())
+			case 8:
+				r.state.Address = r.buf.uint64()
+			default:
+				r.buf.error("unknown address size")
+			}
 
 		case lneDefineFile:
 			if done, err := r.readFileEntry(); err != nil {
@@ -533,6 +705,22 @@
 	r.updateFile()
 }
 
+// Files returns the file name table of this compilation unit as of
+// the current position in the line table. The file name table may be
+// referenced from attributes in this compilation unit such as
+// AttrDeclFile.
+//
+// Entry 0 is always nil, since file index 0 represents "no file".
+//
+// The file name table of a compilation unit is not fixed. Files
+// returns the file table as of the current position in the line
+// table. This may contain more entries than the file table at an
+// earlier position in the line table, though existing entries never
+// change.
+func (r *LineReader) Files() []*LineFile {
+	return r.fileEntries
+}
+
 // ErrUnknownPC is the error returned by LineReader.ScanPC when the
 // seek PC is not covered by any entry in the line table.
 var ErrUnknownPC = errors.New("ErrUnknownPC")
@@ -618,7 +806,7 @@
 	// DOS-style path.
 	drive2, filename := splitDrive(filename)
 	if drive2 != "" {
-		if strings.ToLower(drive) != strings.ToLower(drive2) {
+		if !strings.EqualFold(drive, drive2) {
 			// Different drives. There's not much we can
 			// do here, so just ignore the directory.
 			return drive2 + filename
diff --git a/libgo/go/debug/dwarf/line_test.go b/libgo/go/debug/dwarf/line_test.go
index 11a2544..1fd9b19 100644
--- a/libgo/go/debug/dwarf/line_test.go
+++ b/libgo/go/debug/dwarf/line_test.go
@@ -43,8 +43,9 @@
 		{Address: 0x40060f, File: file2C, Line: 6, IsStmt: true},
 		{Address: 0x400611, EndSequence: true},
 	}
+	files := [][]*LineFile{{nil, file1H, file1C}, {nil, file2C}}
 
-	testLineTable(t, want, elfData(t, "testdata/line-gcc.elf"))
+	testLineTable(t, want, files, elfData(t, "testdata/line-gcc.elf"))
 }
 
 func TestLineGCCWindows(t *testing.T) {
@@ -83,8 +84,9 @@
 		{Address: 0x401595, File: file2C, Line: 6, IsStmt: true},
 		{Address: 0x40159b, EndSequence: true},
 	}
+	files := [][]*LineFile{{nil, file1H, file1C}, {nil, file2C}}
 
-	testLineTable(t, want, peData(t, "testdata/line-gcc-win.bin"))
+	testLineTable(t, want, files, peData(t, "testdata/line-gcc-win.bin"))
 }
 
 func TestLineELFClang(t *testing.T) {
@@ -110,8 +112,9 @@
 		{Address: 0x4005a7, File: file2C, Line: 6, IsStmt: true},
 		{Address: 0x4005b0, EndSequence: true},
 	}
+	files := [][]*LineFile{{nil, file1C, file1H}, {nil, file2C}}
 
-	testLineTable(t, want, elfData(t, "testdata/line-clang.elf"))
+	testLineTable(t, want, files, elfData(t, "testdata/line-clang.elf"))
 }
 
 func TestLineSeek(t *testing.T) {
@@ -190,7 +193,7 @@
 	}
 }
 
-func testLineTable(t *testing.T, want []LineEntry, d *Data) {
+func testLineTable(t *testing.T, want []LineEntry, files [][]*LineFile, d *Data) {
 	// Get line table from d.
 	var got []LineEntry
 	dr := d.Reader()
@@ -207,6 +210,12 @@
 			continue
 		}
 
+		// Ignore system compilation units (this happens in
+		// the Windows binary). We'll still decode the line
+		// table, but won't check it.
+		name := ent.Val(AttrName).(string)
+		ignore := strings.HasPrefix(name, "C:/crossdev/") || strings.HasPrefix(name, "../../")
+
 		// Decode CU's line table.
 		lr, err := d.LineReader(ent)
 		if err != nil {
@@ -225,12 +234,23 @@
 				t.Fatal("lr.Next:", err)
 			}
 			// Ignore sources from the Windows build environment.
-			if strings.HasPrefix(line.File.Name, "C:\\crossdev\\") ||
-				strings.HasPrefix(line.File.Name, "C:/crossdev/") {
+			if ignore {
 				continue
 			}
 			got = append(got, line)
 		}
+
+		// Check file table.
+		if !ignore {
+			if !compareFiles(files[0], lr.Files()) {
+				t.Log("File tables do not match. Got:")
+				dumpFiles(t, lr.Files())
+				t.Log("Want:")
+				dumpFiles(t, files[0])
+				t.Fail()
+			}
+			files = files[1:]
+		}
 	}
 
 	// Compare line tables.
@@ -243,6 +263,32 @@
 	}
 }
 
+func compareFiles(a, b []*LineFile) bool {
+	if len(a) != len(b) {
+		return false
+	}
+	for i := range a {
+		if a[i] == nil && b[i] == nil {
+			continue
+		}
+		if a[i] != nil && b[i] != nil && a[i].Name == b[i].Name {
+			continue
+		}
+		return false
+	}
+	return true
+}
+
+func dumpFiles(t *testing.T, files []*LineFile) {
+	for i, f := range files {
+		name := "<nil>"
+		if f != nil {
+			name = f.Name
+		}
+		t.Logf("  %d %s", i, name)
+	}
+}
+
 func compareLines(a, b []LineEntry) bool {
 	if len(a) != len(b) {
 		return false
diff --git a/libgo/go/debug/dwarf/open.go b/libgo/go/debug/dwarf/open.go
index 9381869..d6d4f78 100644
--- a/libgo/go/debug/dwarf/open.go
+++ b/libgo/go/debug/dwarf/open.go
@@ -22,8 +22,14 @@
 	ranges   []byte
 	str      []byte
 
+	// New sections added in DWARF 5.
+	addr       []byte
+	lineStr    []byte
+	strOffsets []byte
+
 	// parsed data
 	abbrevCache map[uint64]abbrevTable
+	bigEndian   bool
 	order       binary.ByteOrder
 	typeCache   map[Offset]Type
 	typeSigs    map[uint64]*typeUnit
@@ -72,8 +78,10 @@
 	case x == 0 && y == 0:
 		return nil, DecodeError{"info", 4, "unsupported version 0"}
 	case x == 0:
+		d.bigEndian = true
 		d.order = binary.BigEndian
 	case y == 0:
+		d.bigEndian = false
 		d.order = binary.LittleEndian
 	default:
 		return nil, DecodeError{"info", 4, "cannot determine byte order"}
@@ -94,3 +102,20 @@
 func (d *Data) AddTypes(name string, types []byte) error {
 	return d.parseTypes(name, types)
 }
+
+// AddSection adds another DWARF section by name. The name should be a
+// DWARF section name such as ".debug_addr", ".debug_str_offsets", and
+// so forth. This approach is used for new DWARF sections added in
+// DWARF 5 and later.
+func (d *Data) AddSection(name string, contents []byte) error {
+	switch name {
+	case ".debug_addr":
+		d.addr = contents
+	case ".debug_line_str":
+		d.lineStr = contents
+	case ".debug_str_offsets":
+		d.strOffsets = contents
+	}
+	// Just ignore names that we don't yet support.
+	return nil
+}
diff --git a/libgo/go/debug/dwarf/tag_string.go b/libgo/go/debug/dwarf/tag_string.go
index ac396af..b79ea17 100644
--- a/libgo/go/debug/dwarf/tag_string.go
+++ b/libgo/go/debug/dwarf/tag_string.go
@@ -4,20 +4,95 @@
 
 import "strconv"
 
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[TagArrayType-1]
+	_ = x[TagClassType-2]
+	_ = x[TagEntryPoint-3]
+	_ = x[TagEnumerationType-4]
+	_ = x[TagFormalParameter-5]
+	_ = x[TagImportedDeclaration-8]
+	_ = x[TagLabel-10]
+	_ = x[TagLexDwarfBlock-11]
+	_ = x[TagMember-13]
+	_ = x[TagPointerType-15]
+	_ = x[TagReferenceType-16]
+	_ = x[TagCompileUnit-17]
+	_ = x[TagStringType-18]
+	_ = x[TagStructType-19]
+	_ = x[TagSubroutineType-21]
+	_ = x[TagTypedef-22]
+	_ = x[TagUnionType-23]
+	_ = x[TagUnspecifiedParameters-24]
+	_ = x[TagVariant-25]
+	_ = x[TagCommonDwarfBlock-26]
+	_ = x[TagCommonInclusion-27]
+	_ = x[TagInheritance-28]
+	_ = x[TagInlinedSubroutine-29]
+	_ = x[TagModule-30]
+	_ = x[TagPtrToMemberType-31]
+	_ = x[TagSetType-32]
+	_ = x[TagSubrangeType-33]
+	_ = x[TagWithStmt-34]
+	_ = x[TagAccessDeclaration-35]
+	_ = x[TagBaseType-36]
+	_ = x[TagCatchDwarfBlock-37]
+	_ = x[TagConstType-38]
+	_ = x[TagConstant-39]
+	_ = x[TagEnumerator-40]
+	_ = x[TagFileType-41]
+	_ = x[TagFriend-42]
+	_ = x[TagNamelist-43]
+	_ = x[TagNamelistItem-44]
+	_ = x[TagPackedType-45]
+	_ = x[TagSubprogram-46]
+	_ = x[TagTemplateTypeParameter-47]
+	_ = x[TagTemplateValueParameter-48]
+	_ = x[TagThrownType-49]
+	_ = x[TagTryDwarfBlock-50]
+	_ = x[TagVariantPart-51]
+	_ = x[TagVariable-52]
+	_ = x[TagVolatileType-53]
+	_ = x[TagDwarfProcedure-54]
+	_ = x[TagRestrictType-55]
+	_ = x[TagInterfaceType-56]
+	_ = x[TagNamespace-57]
+	_ = x[TagImportedModule-58]
+	_ = x[TagUnspecifiedType-59]
+	_ = x[TagPartialUnit-60]
+	_ = x[TagImportedUnit-61]
+	_ = x[TagMutableType-62]
+	_ = x[TagCondition-63]
+	_ = x[TagSharedType-64]
+	_ = x[TagTypeUnit-65]
+	_ = x[TagRvalueReferenceType-66]
+	_ = x[TagTemplateAlias-67]
+	_ = x[TagCoarrayType-68]
+	_ = x[TagGenericSubrange-69]
+	_ = x[TagDynamicType-70]
+	_ = x[TagAtomicType-71]
+	_ = x[TagCallSite-72]
+	_ = x[TagCallSiteParameter-73]
+	_ = x[TagSkeletonUnit-74]
+	_ = x[TagImmutableType-75]
+}
+
 const (
 	_Tag_name_0 = "ArrayTypeClassTypeEntryPointEnumerationTypeFormalParameter"
 	_Tag_name_1 = "ImportedDeclaration"
 	_Tag_name_2 = "LabelLexDwarfBlock"
 	_Tag_name_3 = "Member"
 	_Tag_name_4 = "PointerTypeReferenceTypeCompileUnitStringTypeStructType"
-	_Tag_name_5 = "SubroutineTypeTypedefUnionTypeUnspecifiedParametersVariantCommonDwarfBlockCommonInclusionInheritanceInlinedSubroutineModulePtrToMemberTypeSetTypeSubrangeTypeWithStmtAccessDeclarationBaseTypeCatchDwarfBlockConstTypeConstantEnumeratorFileTypeFriendNamelistNamelistItemPackedTypeSubprogramTemplateTypeParameterTemplateValueParameterThrownTypeTryDwarfBlockVariantPartVariableVolatileTypeDwarfProcedureRestrictTypeInterfaceTypeNamespaceImportedModuleUnspecifiedTypePartialUnitImportedUnitMutableTypeConditionSharedTypeTypeUnitRvalueReferenceTypeTemplateAlias"
+	_Tag_name_5 = "SubroutineTypeTypedefUnionTypeUnspecifiedParametersVariantCommonDwarfBlockCommonInclusionInheritanceInlinedSubroutineModulePtrToMemberTypeSetTypeSubrangeTypeWithStmtAccessDeclarationBaseTypeCatchDwarfBlockConstTypeConstantEnumeratorFileTypeFriendNamelistNamelistItemPackedTypeSubprogramTemplateTypeParameterTemplateValueParameterThrownTypeTryDwarfBlockVariantPartVariableVolatileTypeDwarfProcedureRestrictTypeInterfaceTypeNamespaceImportedModuleUnspecifiedTypePartialUnitImportedUnitMutableTypeConditionSharedTypeTypeUnitRvalueReferenceTypeTemplateAliasCoarrayTypeGenericSubrangeDynamicTypeAtomicTypeCallSiteCallSiteParameterSkeletonUnitImmutableType"
 )
 
 var (
 	_Tag_index_0 = [...]uint8{0, 9, 18, 28, 43, 58}
 	_Tag_index_2 = [...]uint8{0, 5, 18}
 	_Tag_index_4 = [...]uint8{0, 11, 24, 35, 45, 55}
-	_Tag_index_5 = [...]uint16{0, 14, 21, 30, 51, 58, 74, 89, 100, 117, 123, 138, 145, 157, 165, 182, 190, 205, 214, 222, 232, 240, 246, 254, 266, 276, 286, 307, 329, 339, 352, 363, 371, 383, 397, 409, 422, 431, 445, 460, 471, 483, 494, 503, 513, 521, 540, 553}
+	_Tag_index_5 = [...]uint16{0, 14, 21, 30, 51, 58, 74, 89, 100, 117, 123, 138, 145, 157, 165, 182, 190, 205, 214, 222, 232, 240, 246, 254, 266, 276, 286, 307, 329, 339, 352, 363, 371, 383, 397, 409, 422, 431, 445, 460, 471, 483, 494, 503, 513, 521, 540, 553, 564, 579, 590, 600, 608, 625, 637, 650}
 )
 
 func (i Tag) String() string {
@@ -35,7 +110,7 @@
 	case 15 <= i && i <= 19:
 		i -= 15
 		return _Tag_name_4[_Tag_index_4[i]:_Tag_index_4[i+1]]
-	case 21 <= i && i <= 67:
+	case 21 <= i && i <= 75:
 		i -= 21
 		return _Tag_name_5[_Tag_index_5[i]:_Tag_index_5[i+1]]
 	default:
diff --git a/libgo/go/debug/dwarf/type_test.go b/libgo/go/debug/dwarf/type_test.go
index aa2fbec..fda03fd 100644
--- a/libgo/go/debug/dwarf/type_test.go
+++ b/libgo/go/debug/dwarf/type_test.go
@@ -223,7 +223,7 @@
 		}
 	}
 	if dumpseen {
-		for k, _ := range seen {
+		for k := range seen {
 			fmt.Printf("seen: %s\n", k)
 		}
 	}
diff --git a/libgo/go/debug/dwarf/typeunit.go b/libgo/go/debug/dwarf/typeunit.go
index 76b357c..27aa078 100644
--- a/libgo/go/debug/dwarf/typeunit.go
+++ b/libgo/go/debug/dwarf/typeunit.go
@@ -137,7 +137,7 @@
 	if len(tur.tu.data) == 0 {
 		return nil, nil
 	}
-	e := tur.b.entry(tur.tu.atable, tur.tu.base)
+	e := tur.b.entry(nil, tur.tu.atable, tur.tu.base, tur.tu.vers)
 	if tur.b.err != nil {
 		tur.err = tur.b.err
 		return nil, tur.err
diff --git a/libgo/go/debug/dwarf/unit.go b/libgo/go/debug/dwarf/unit.go
index 98024ca..29a744f 100644
--- a/libgo/go/debug/dwarf/unit.go
+++ b/libgo/go/debug/dwarf/unit.go
@@ -19,7 +19,8 @@
 	atable abbrevTable
 	asize  int
 	vers   int
-	is64   bool // True for 64-bit DWARF format
+	utype  uint8 // DWARF 5 unit type
+	is64   bool  // True for 64-bit DWARF format
 }
 
 // Implement the dataFormat interface.
@@ -63,11 +64,15 @@
 		n, u.is64 = b.unitLength()
 		dataOff := b.off
 		vers := b.uint16()
-		if vers != 2 && vers != 3 && vers != 4 {
+		if vers < 2 || vers > 5 {
 			b.error("unsupported DWARF version " + strconv.Itoa(int(vers)))
 			break
 		}
 		u.vers = int(vers)
+		if vers >= 5 {
+			u.utype = b.uint8()
+			u.asize = int(b.uint8())
+		}
 		var abbrevOff uint64
 		if u.is64 {
 			abbrevOff = b.uint64()
@@ -82,7 +87,22 @@
 			break
 		}
 		u.atable = atable
-		u.asize = int(b.uint8())
+		if vers < 5 {
+			u.asize = int(b.uint8())
+		}
+
+		switch u.utype {
+		case utSkeleton, utSplitCompile:
+			b.uint64() // unit ID
+		case utType, utSplitType:
+			b.uint64()  // type signature
+			if u.is64 { // type offset
+				b.uint64()
+			} else {
+				b.uint32()
+			}
+		}
+
 		u.off = b.off
 		u.data = b.bytes(int(n - (b.off - dataOff)))
 	}
diff --git a/libgo/go/debug/elf/file.go b/libgo/go/debug/elf/file.go
index e2a5820..b9a8b1e 100644
--- a/libgo/go/debug/elf/file.go
+++ b/libgo/go/debug/elf/file.go
@@ -632,6 +632,25 @@
 	}
 }
 
+// relocSymbolTargetOK decides whether we should try to apply a
+// relocation to a DWARF data section, given a pointer to the symbol
+// targeted by the relocation. Most relocations in DWARF data tend to
+// be section-relative, but some target non-section symbols (for
+// example, low_PC attrs on subprogram or compilation unit DIEs that
+// target function symbols), and we need to include these as well.
+// Return value is a pair (X,Y) where X is a boolean indicating
+// whether the relocation is needed, and Y is the symbol value in the
+// case of a non-section relocation that needs to be applied.
+func relocSymbolTargetOK(sym *Symbol) (bool, uint64) {
+	if ST_TYPE(sym.Info) == STT_SECTION {
+		return true, 0
+	}
+	if sym.Section != SHN_UNDEF && sym.Section < SHN_LORESERVE {
+		return true, sym.Value
+	}
+	return false, 0
+}
+
 func (f *File) applyRelocationsAMD64(dst []byte, rels []byte) error {
 	// 24 is the size of Rela64.
 	if len(rels)%24 != 0 {
@@ -655,26 +674,28 @@
 			continue
 		}
 		sym := &symbols[symNo-1]
-		if SymType(sym.Info&0xf) != STT_SECTION {
-			// We don't handle non-section relocations for now.
+		needed, val := relocSymbolTargetOK(sym)
+		if !needed {
 			continue
 		}
 
 		// There are relocations, so this must be a normal
-		// object file, and we only look at section symbols,
-		// so we assume that the symbol value is 0.
+		// object file.  The code below handles only basic relocations
+		// of the form S + A (symbol plus addend).
 
 		switch t {
 		case R_X86_64_64:
 			if rela.Off+8 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], uint64(rela.Addend))
+			val64 := val + uint64(rela.Addend)
+			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], val64)
 		case R_X86_64_32:
 			if rela.Off+4 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], uint32(rela.Addend))
+			val32 := uint32(val) + uint32(rela.Addend)
+			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], val32)
 		}
 	}
 
@@ -779,26 +800,28 @@
 			continue
 		}
 		sym := &symbols[symNo-1]
-		if SymType(sym.Info&0xf) != STT_SECTION {
-			// We don't handle non-section relocations for now.
+		needed, val := relocSymbolTargetOK(sym)
+		if !needed {
 			continue
 		}
 
 		// There are relocations, so this must be a normal
-		// object file, and we only look at section symbols,
-		// so we assume that the symbol value is 0.
+		// object file.  The code below handles only basic relocations
+		// of the form S + A (symbol plus addend).
 
 		switch t {
 		case R_AARCH64_ABS64:
 			if rela.Off+8 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], uint64(rela.Addend))
+			val64 := uint64(val) + uint64(rela.Addend)
+			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], val64)
 		case R_AARCH64_ABS32:
 			if rela.Off+4 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], uint32(rela.Addend))
+			val32 := uint32(val) + uint32(rela.Addend)
+			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], val32)
 		}
 	}
 
@@ -828,8 +851,8 @@
 			continue
 		}
 		sym := &symbols[symNo-1]
-		if SymType(sym.Info&0xf) != STT_SECTION {
-			// We don't handle non-section relocations for now.
+		needed, val := relocSymbolTargetOK(sym)
+		if !needed {
 			continue
 		}
 
@@ -838,7 +861,8 @@
 			if rela.Off+4 >= uint32(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], uint32(rela.Addend))
+			val32 := uint32(val) + uint32(rela.Addend)
+			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], val32)
 		}
 	}
 
@@ -868,8 +892,8 @@
 			continue
 		}
 		sym := &symbols[symNo-1]
-		if SymType(sym.Info&0xf) != STT_SECTION {
-			// We don't handle non-section relocations for now.
+		needed, val := relocSymbolTargetOK(sym)
+		if !needed {
 			continue
 		}
 
@@ -878,12 +902,14 @@
 			if rela.Off+8 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], uint64(rela.Addend))
+			val64 := val + uint64(rela.Addend)
+			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], val64)
 		case R_PPC64_ADDR32:
 			if rela.Off+4 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], uint32(rela.Addend))
+			val32 := uint32(val) + uint32(rela.Addend)
+			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], val32)
 		}
 	}
 
@@ -958,8 +984,8 @@
 			continue
 		}
 		sym := &symbols[symNo-1]
-		if SymType(sym.Info&0xf) != STT_SECTION {
-			// We don't handle non-section relocations for now.
+		needed, val := relocSymbolTargetOK(sym)
+		if !needed {
 			continue
 		}
 
@@ -968,12 +994,14 @@
 			if rela.Off+8 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], uint64(rela.Addend))
+			val64 := val + uint64(rela.Addend)
+			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], val64)
 		case R_MIPS_32:
 			if rela.Off+4 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], uint32(rela.Addend))
+			val32 := uint32(val) + uint32(rela.Addend)
+			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], val32)
 		}
 	}
 
@@ -1003,10 +1031,8 @@
 			continue
 		}
 		sym := &symbols[symNo-1]
-		switch SymType(sym.Info & 0xf) {
-		case STT_SECTION, STT_NOTYPE:
-			break
-		default:
+		needed, val := relocSymbolTargetOK(sym)
+		if !needed {
 			continue
 		}
 
@@ -1015,14 +1041,14 @@
 			if rela.Off+8 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			val := sym.Value + uint64(rela.Addend)
-			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], val)
+			val64 := val + uint64(rela.Addend)
+			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], val64)
 		case R_RISCV_32:
 			if rela.Off+4 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			val := uint32(sym.Value) + uint32(rela.Addend)
-			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], val)
+			val32 := uint32(val) + uint32(rela.Addend)
+			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], val32)
 		}
 	}
 
@@ -1052,10 +1078,8 @@
 			continue
 		}
 		sym := &symbols[symNo-1]
-		switch SymType(sym.Info & 0xf) {
-		case STT_SECTION, STT_NOTYPE:
-			break
-		default:
+		needed, val := relocSymbolTargetOK(sym)
+		if !needed {
 			continue
 		}
 
@@ -1064,14 +1088,14 @@
 			if rela.Off+8 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			val := sym.Value + uint64(rela.Addend)
-			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], val)
+			val64 := val + uint64(rela.Addend)
+			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], val64)
 		case R_390_32:
 			if rela.Off+4 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			val := uint32(sym.Value) + uint32(rela.Addend)
-			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], val)
+			val32 := uint32(val) + uint32(rela.Addend)
+			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], val32)
 		}
 	}
 
@@ -1141,8 +1165,8 @@
 			continue
 		}
 		sym := &symbols[symNo-1]
-		if SymType(sym.Info&0xf) != STT_SECTION {
-			// We don't handle non-section relocations for now.
+		needed, val := relocSymbolTargetOK(sym)
+		if !needed {
 			continue
 		}
 
@@ -1151,12 +1175,14 @@
 			if rela.Off+8 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], uint64(rela.Addend))
+			val64 := val + uint64(rela.Addend)
+			f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], val64)
 		case R_SPARC_32, R_SPARC_UA32:
 			if rela.Off+4 >= uint64(len(dst)) || rela.Addend < 0 {
 				continue
 			}
-			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], uint32(rela.Addend))
+			val32 := uint32(val) + uint32(rela.Addend)
+			f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], val32)
 		}
 	}
 
@@ -1267,9 +1293,8 @@
 		return b, nil
 	}
 
-	// There are many other DWARF sections, but these
-	// are the ones the debug/dwarf package uses.
-	// Don't bother loading others.
+	// There are many DWARf sections, but these are the ones
+	// the debug/dwarf package started with.
 	var dat = map[string][]byte{"abbrev": nil, "info": nil, "str": nil, "line": nil, "ranges": nil}
 	for i, s := range f.Sections {
 		suffix := dwarfSuffix(s)
@@ -1291,10 +1316,14 @@
 		return nil, err
 	}
 
-	// Look for DWARF4 .debug_types sections.
+	// Look for DWARF4 .debug_types sections and DWARF5 sections.
 	for i, s := range f.Sections {
 		suffix := dwarfSuffix(s)
-		if suffix != "types" {
+		if suffix == "" {
+			continue
+		}
+		if _, ok := dat[suffix]; ok {
+			// Already handled.
 			continue
 		}
 
@@ -1303,9 +1332,14 @@
 			return nil, err
 		}
 
-		err = d.AddTypes(fmt.Sprintf("types-%d", i), b)
-		if err != nil {
-			return nil, err
+		if suffix == "types" {
+			if err := d.AddTypes(fmt.Sprintf("types-%d", i), b); err != nil {
+				return nil, err
+			}
+		} else {
+			if err := d.AddSection(".debug_"+suffix, b); err != nil {
+				return nil, err
+			}
 		}
 	}
 
diff --git a/libgo/go/debug/elf/file_test.go b/libgo/go/debug/elf/file_test.go
index b826a0f..b13d13e 100644
--- a/libgo/go/debug/elf/file_test.go
+++ b/libgo/go/debug/elf/file_test.go
@@ -784,7 +784,7 @@
 func TestNoSectionOverlaps(t *testing.T) {
 	// Ensure cmd/link outputs sections without overlaps.
 	switch runtime.GOOS {
-	case "aix", "android", "darwin", "js", "nacl", "plan9", "windows":
+	case "aix", "android", "darwin", "js", "plan9", "windows":
 		t.Skipf("cmd/link doesn't produce ELF binaries on %s", runtime.GOOS)
 	}
 	_ = net.ResolveIPAddr // force dynamic linkage
@@ -818,6 +818,6 @@
 		"0000")
 	_, err := NewFile(bytes.NewReader(data))
 	if err == nil {
-		t.Fatalf("opening invalid ELF file unexpectedly suceeded")
+		t.Fatalf("opening invalid ELF file unexpectedly succeeded")
 	}
 }
diff --git a/libgo/go/debug/macho/file.go b/libgo/go/debug/macho/file.go
index 16708e5..085b0c8 100644
--- a/libgo/go/debug/macho/file.go
+++ b/libgo/go/debug/macho/file.go
@@ -473,7 +473,12 @@
 		if n.Name >= uint32(len(strtab)) {
 			return nil, &FormatError{offset, "invalid name in symbol table", n.Name}
 		}
-		sym.Name = cstring(strtab[n.Name:])
+		// We add "_" to Go symbols. Strip it here. See issue 33808.
+		name := cstring(strtab[n.Name:])
+		if strings.Contains(name, ".") && name[0] == '_' {
+			name = name[1:]
+		}
+		sym.Name = name
 		sym.Type = n.Type
 		sym.Sect = n.Sect
 		sym.Desc = n.Desc
diff --git a/libgo/go/debug/macho/file_test.go b/libgo/go/debug/macho/file_test.go
index 28b76f9..03915c8 100644
--- a/libgo/go/debug/macho/file_test.go
+++ b/libgo/go/debug/macho/file_test.go
@@ -5,6 +5,9 @@
 package macho
 
 import (
+	"bytes"
+	"internal/obscuretestdata"
+	"io"
 	"reflect"
 	"testing"
 )
@@ -19,7 +22,7 @@
 
 var fileTests = []fileTest{
 	{
-		"testdata/gcc-386-darwin-exec",
+		"testdata/gcc-386-darwin-exec.base64",
 		FileHeader{0xfeedface, Cpu386, 0x3, 0x2, 0xc, 0x3c0, 0x85},
 		[]interface{}{
 			&SegmentHeader{LoadCmdSegment, 0x38, "__PAGEZERO", 0x0, 0x1000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
@@ -45,7 +48,7 @@
 		nil,
 	},
 	{
-		"testdata/gcc-amd64-darwin-exec",
+		"testdata/gcc-amd64-darwin-exec.base64",
 		FileHeader{0xfeedfacf, CpuAmd64, 0x80000003, 0x2, 0xb, 0x568, 0x85},
 		[]interface{}{
 			&SegmentHeader{LoadCmdSegment64, 0x48, "__PAGEZERO", 0x0, 0x100000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
@@ -73,7 +76,7 @@
 		nil,
 	},
 	{
-		"testdata/gcc-amd64-darwin-exec-debug",
+		"testdata/gcc-amd64-darwin-exec-debug.base64",
 		FileHeader{0xfeedfacf, CpuAmd64, 0x80000003, 0xa, 0x4, 0x5a0, 0},
 		[]interface{}{
 			nil, // LC_UUID
@@ -101,7 +104,7 @@
 		nil,
 	},
 	{
-		"testdata/clang-386-darwin-exec-with-rpath",
+		"testdata/clang-386-darwin-exec-with-rpath.base64",
 		FileHeader{0xfeedface, Cpu386, 0x3, 0x2, 0x10, 0x42c, 0x1200085},
 		[]interface{}{
 			nil, // LC_SEGMENT
@@ -125,7 +128,7 @@
 		nil,
 	},
 	{
-		"testdata/clang-amd64-darwin-exec-with-rpath",
+		"testdata/clang-amd64-darwin-exec-with-rpath.base64",
 		FileHeader{0xfeedfacf, CpuAmd64, 0x80000003, 0x2, 0x10, 0x4c8, 0x200085},
 		[]interface{}{
 			nil, // LC_SEGMENT
@@ -149,7 +152,7 @@
 		nil,
 	},
 	{
-		"testdata/clang-386-darwin.obj",
+		"testdata/clang-386-darwin.obj.base64",
 		FileHeader{0xfeedface, Cpu386, 0x3, 0x1, 0x4, 0x138, 0x2000},
 		nil,
 		nil,
@@ -184,7 +187,7 @@
 		},
 	},
 	{
-		"testdata/clang-amd64-darwin.obj",
+		"testdata/clang-amd64-darwin.obj.base64",
 		FileHeader{0xfeedfacf, CpuAmd64, 0x3, 0x1, 0x4, 0x200, 0x2000},
 		nil,
 		nil,
@@ -221,11 +224,47 @@
 	},
 }
 
+func readerAtFromObscured(name string) (io.ReaderAt, error) {
+	b, err := obscuretestdata.ReadFile(name)
+	if err != nil {
+		return nil, err
+	}
+	return bytes.NewReader(b), nil
+}
+
+func openObscured(name string) (*File, error) {
+	ra, err := readerAtFromObscured(name)
+	if err != nil {
+		return nil, err
+	}
+	ff, err := NewFile(ra)
+	if err != nil {
+		return nil, err
+	}
+	return ff, nil
+}
+
+func openFatObscured(name string) (*FatFile, error) {
+	ra, err := readerAtFromObscured(name)
+	if err != nil {
+		return nil, err
+	}
+	ff, err := NewFatFile(ra)
+	if err != nil {
+		return nil, err
+	}
+	return ff, nil
+}
+
 func TestOpen(t *testing.T) {
 	for i := range fileTests {
 		tt := &fileTests[i]
 
-		f, err := Open(tt.file)
+		// Use obscured files to prevent Apple’s notarization service from
+		// mistaking them as candidates for notarization and rejecting the entire
+		// toolchain.
+		// See golang.org/issue/34986
+		f, err := openObscured(tt.file)
 		if err != nil {
 			t.Error(err)
 			continue
@@ -318,7 +357,7 @@
 }
 
 func TestOpenFat(t *testing.T) {
-	ff, err := OpenFat("testdata/fat-gcc-386-amd64-darwin-exec")
+	ff, err := openFatObscured("testdata/fat-gcc-386-amd64-darwin-exec.base64")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -350,8 +389,8 @@
 		t.Errorf("OpenFat %s: succeeded unexpectedly", filename)
 	}
 
-	filename = "testdata/gcc-386-darwin-exec" // not a fat Mach-O
-	ff, err := OpenFat(filename)
+	filename = "testdata/gcc-386-darwin-exec.base64" // not a fat Mach-O
+	ff, err := openFatObscured(filename)
 	if err != ErrNotFat {
 		t.Errorf("OpenFat %s: got %v, want ErrNotFat", filename, err)
 	}
diff --git a/libgo/go/debug/macho/testdata/clang-386-darwin-exec-with-rpath b/libgo/go/debug/macho/testdata/clang-386-darwin-exec-with-rpath
deleted file mode 100644
index a8720fe..0000000
--- a/libgo/go/debug/macho/testdata/clang-386-darwin-exec-with-rpath
+++ /dev/null
Binary files differ
diff --git a/libgo/go/debug/macho/testdata/clang-386-darwin-exec-with-rpath.base64 b/libgo/go/debug/macho/testdata/clang-386-darwin-exec-with-rpath.base64
new file mode 100644
index 0000000..64047f1
--- /dev/null
+++ b/libgo/go/debug/macho/testdata/clang-386-darwin-exec-with-rpath.base64
@@ -0,0 +1 @@
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diff --git a/libgo/go/debug/macho/testdata/clang-386-darwin.obj b/libgo/go/debug/macho/testdata/clang-386-darwin.obj
deleted file mode 100644
index e79dc57..0000000
--- a/libgo/go/debug/macho/testdata/clang-386-darwin.obj
+++ /dev/null
Binary files differ
diff --git a/libgo/go/debug/macho/testdata/clang-386-darwin.obj.base64 b/libgo/go/debug/macho/testdata/clang-386-darwin.obj.base64
new file mode 100644
index 0000000..60a0765
--- /dev/null
+++ b/libgo/go/debug/macho/testdata/clang-386-darwin.obj.base64
@@ -0,0 +1 @@
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diff --git a/libgo/go/debug/macho/testdata/clang-amd64-darwin-exec-with-rpath b/libgo/go/debug/macho/testdata/clang-amd64-darwin-exec-with-rpath
deleted file mode 100644
index 191c768..0000000
--- a/libgo/go/debug/macho/testdata/clang-amd64-darwin-exec-with-rpath
+++ /dev/null
Binary files differ
diff --git a/libgo/go/debug/macho/testdata/clang-amd64-darwin-exec-with-rpath.base64 b/libgo/go/debug/macho/testdata/clang-amd64-darwin-exec-with-rpath.base64
new file mode 100644
index 0000000..2682181
--- /dev/null
+++ b/libgo/go/debug/macho/testdata/clang-amd64-darwin-exec-with-rpath.base64
@@ -0,0 +1 @@
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diff --git a/libgo/go/debug/macho/testdata/clang-amd64-darwin.obj b/libgo/go/debug/macho/testdata/clang-amd64-darwin.obj
deleted file mode 100644
index 23cc3c1..0000000
--- a/libgo/go/debug/macho/testdata/clang-amd64-darwin.obj
+++ /dev/null
Binary files differ
diff --git a/libgo/go/debug/macho/testdata/clang-amd64-darwin.obj.base64 b/libgo/go/debug/macho/testdata/clang-amd64-darwin.obj.base64
new file mode 100644
index 0000000..b8f1fce
--- /dev/null
+++ b/libgo/go/debug/macho/testdata/clang-amd64-darwin.obj.base64
@@ -0,0 +1 @@
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diff --git a/libgo/go/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec b/libgo/go/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec
deleted file mode 100644
index 7efd193..0000000
--- a/libgo/go/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec
+++ /dev/null
Binary files differ
diff --git a/libgo/go/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec.base64 b/libgo/go/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec.base64
new file mode 100644
index 0000000..407d977
--- /dev/null
+++ b/libgo/go/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec.base64
@@ -0,0 +1 @@
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diff --git a/libgo/go/debug/macho/testdata/gcc-386-darwin-exec b/libgo/go/debug/macho/testdata/gcc-386-darwin-exec
deleted file mode 100755
index 03ba1ba..0000000
--- a/libgo/go/debug/macho/testdata/gcc-386-darwin-exec
+++ /dev/null
Binary files differ
diff --git a/libgo/go/debug/macho/testdata/gcc-386-darwin-exec.base64 b/libgo/go/debug/macho/testdata/gcc-386-darwin-exec.base64
new file mode 100644
index 0000000..5e40ed6
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diff --git a/libgo/go/debug/macho/testdata/gcc-amd64-darwin-exec b/libgo/go/debug/macho/testdata/gcc-amd64-darwin-exec
deleted file mode 100755
index 5155a5a..0000000
--- a/libgo/go/debug/macho/testdata/gcc-amd64-darwin-exec
+++ /dev/null
Binary files differ
diff --git a/libgo/go/debug/macho/testdata/gcc-amd64-darwin-exec-debug b/libgo/go/debug/macho/testdata/gcc-amd64-darwin-exec-debug
deleted file mode 100644
index a47d3ae..0000000
--- a/libgo/go/debug/macho/testdata/gcc-amd64-darwin-exec-debug
+++ /dev/null
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diff --git a/libgo/go/debug/macho/testdata/gcc-amd64-darwin-exec-debug.base64 b/libgo/go/debug/macho/testdata/gcc-amd64-darwin-exec-debug.base64
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index 0000000..8884566
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diff --git a/libgo/go/debug/macho/testdata/gcc-amd64-darwin-exec.base64 b/libgo/go/debug/macho/testdata/gcc-amd64-darwin-exec.base64
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index 0000000..b48ae56
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@@ -0,0 +1 @@
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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABqAEiJ5UiD5PBIi30ISI11EIn6g8IBweIDSAHySInR6wRIg8EISIM5AHX2SIPBCOgiAAAAicfoMgAAAPRBU0yNHafw//9BU/8lvwAAAA8fAP8lvgAAAFVIieVIjT0zAAAA6A0AAAC4AAAAAMnD/yXRAAAA/yXTAAAAAAAATI0dwQAAAOm0////TI0dvQAAAOmo////aGVsbG8sIHdvcmxkAAAAABQAAAAAAAAAAXpSAAF4EAEQDAcIkAEAACwAAAAcAAAAkv////////8XAAAAAAAAAAAEAQAAAA4QhgIEAwAAAA0GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABDAX/9/AAAIEMBf/38AAAAAAAABAAAAGBAAAAEAAAAQEAAAAQAAAAgQAAABAAAAABAAAAEAAACQDwAAAQAAAJwPAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA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diff --git a/libgo/go/debug/pe/file.go b/libgo/go/debug/pe/file.go
index 5881416..7d763ff 100644
--- a/libgo/go/debug/pe/file.go
+++ b/libgo/go/debug/pe/file.go
@@ -58,11 +58,6 @@
 	return err
 }
 
-var (
-	sizeofOptionalHeader32 = uint16(binary.Size(OptionalHeader32{}))
-	sizeofOptionalHeader64 = uint16(binary.Size(OptionalHeader64{}))
-)
-
 // TODO(brainman): add Load function, as a replacement for NewFile, that does not call removeAuxSymbols (for performance)
 
 // NewFile creates a new File for accessing a PE binary in an underlying reader.
@@ -114,30 +109,16 @@
 		return nil, err
 	}
 
-	// Read optional header.
-	sr.Seek(base, seekStart)
-	if err := binary.Read(sr, binary.LittleEndian, &f.FileHeader); err != nil {
-		return nil, err
+	// Seek past file header.
+	_, err = sr.Seek(base+int64(binary.Size(f.FileHeader)), seekStart)
+	if err != nil {
+		return nil, fmt.Errorf("failure to seek past the file header: %v", err)
 	}
-	var oh32 OptionalHeader32
-	var oh64 OptionalHeader64
-	switch f.FileHeader.SizeOfOptionalHeader {
-	case sizeofOptionalHeader32:
-		if err := binary.Read(sr, binary.LittleEndian, &oh32); err != nil {
-			return nil, err
-		}
-		if oh32.Magic != 0x10b { // PE32
-			return nil, fmt.Errorf("pe32 optional header has unexpected Magic of 0x%x", oh32.Magic)
-		}
-		f.OptionalHeader = &oh32
-	case sizeofOptionalHeader64:
-		if err := binary.Read(sr, binary.LittleEndian, &oh64); err != nil {
-			return nil, err
-		}
-		if oh64.Magic != 0x20b { // PE32+
-			return nil, fmt.Errorf("pe32+ optional header has unexpected Magic of 0x%x", oh64.Magic)
-		}
-		f.OptionalHeader = &oh64
+
+	// Read optional header.
+	f.OptionalHeader, err = readOptionalHeader(sr, f.FileHeader.SizeOfOptionalHeader)
+	if err != nil {
+		return nil, err
 	}
 
 	// Process sections.
@@ -453,3 +434,168 @@
 func (e *FormatError) Error() string {
 	return "unknown error"
 }
+
+// readOptionalHeader accepts a io.ReadSeeker pointing to optional header in the PE file
+// and its size as seen in the file header.
+// It parses the given size of bytes and returns optional header. It infers whether the
+// bytes being parsed refer to 32 bit or 64 bit version of optional header.
+func readOptionalHeader(r io.ReadSeeker, sz uint16) (interface{}, error) {
+	// If optional header size is 0, return empty optional header.
+	if sz == 0 {
+		return nil, nil
+	}
+
+	var (
+		// First couple of bytes in option header state its type.
+		// We need to read them first to determine the type and
+		// validity of optional header.
+		ohMagic   uint16
+		ohMagicSz = binary.Size(ohMagic)
+	)
+
+	// If optional header size is greater than 0 but less than its magic size, return error.
+	if sz < uint16(ohMagicSz) {
+		return nil, fmt.Errorf("optional header size is less than optional header magic size")
+	}
+
+	// read reads from io.ReadSeeke, r, into data.
+	var err error
+	read := func(data interface{}) bool {
+		err = binary.Read(r, binary.LittleEndian, data)
+		return err == nil
+	}
+
+	if !read(&ohMagic) {
+		return nil, fmt.Errorf("failure to read optional header magic: %v", err)
+
+	}
+
+	switch ohMagic {
+	case 0x10b: // PE32
+		var (
+			oh32 OptionalHeader32
+			// There can be 0 or more data directories. So the minimum size of optional
+			// header is calculated by subtracting oh32.DataDirectory size from oh32 size.
+			oh32MinSz = binary.Size(oh32) - binary.Size(oh32.DataDirectory)
+		)
+
+		if sz < uint16(oh32MinSz) {
+			return nil, fmt.Errorf("optional header size(%d) is less minimum size (%d) of PE32 optional header", sz, oh32MinSz)
+		}
+
+		// Init oh32 fields
+		oh32.Magic = ohMagic
+		if !read(&oh32.MajorLinkerVersion) ||
+			!read(&oh32.MinorLinkerVersion) ||
+			!read(&oh32.SizeOfCode) ||
+			!read(&oh32.SizeOfInitializedData) ||
+			!read(&oh32.SizeOfUninitializedData) ||
+			!read(&oh32.AddressOfEntryPoint) ||
+			!read(&oh32.BaseOfCode) ||
+			!read(&oh32.BaseOfData) ||
+			!read(&oh32.ImageBase) ||
+			!read(&oh32.SectionAlignment) ||
+			!read(&oh32.FileAlignment) ||
+			!read(&oh32.MajorOperatingSystemVersion) ||
+			!read(&oh32.MinorOperatingSystemVersion) ||
+			!read(&oh32.MajorImageVersion) ||
+			!read(&oh32.MinorImageVersion) ||
+			!read(&oh32.MajorSubsystemVersion) ||
+			!read(&oh32.MinorSubsystemVersion) ||
+			!read(&oh32.Win32VersionValue) ||
+			!read(&oh32.SizeOfImage) ||
+			!read(&oh32.SizeOfHeaders) ||
+			!read(&oh32.CheckSum) ||
+			!read(&oh32.Subsystem) ||
+			!read(&oh32.DllCharacteristics) ||
+			!read(&oh32.SizeOfStackReserve) ||
+			!read(&oh32.SizeOfStackCommit) ||
+			!read(&oh32.SizeOfHeapReserve) ||
+			!read(&oh32.SizeOfHeapCommit) ||
+			!read(&oh32.LoaderFlags) ||
+			!read(&oh32.NumberOfRvaAndSizes) {
+			return nil, fmt.Errorf("failure to read PE32 optional header: %v", err)
+		}
+
+		dd, err := readDataDirectories(r, sz-uint16(oh32MinSz), oh32.NumberOfRvaAndSizes)
+		if err != nil {
+			return nil, err
+		}
+
+		copy(oh32.DataDirectory[:], dd)
+
+		return &oh32, nil
+	case 0x20b: // PE32+
+		var (
+			oh64 OptionalHeader64
+			// There can be 0 or more data directories. So the minimum size of optional
+			// header is calculated by subtracting oh64.DataDirectory size from oh64 size.
+			oh64MinSz = binary.Size(oh64) - binary.Size(oh64.DataDirectory)
+		)
+
+		if sz < uint16(oh64MinSz) {
+			return nil, fmt.Errorf("optional header size(%d) is less minimum size (%d) for PE32+ optional header", sz, oh64MinSz)
+		}
+
+		// Init oh64 fields
+		oh64.Magic = ohMagic
+		if !read(&oh64.MajorLinkerVersion) ||
+			!read(&oh64.MinorLinkerVersion) ||
+			!read(&oh64.SizeOfCode) ||
+			!read(&oh64.SizeOfInitializedData) ||
+			!read(&oh64.SizeOfUninitializedData) ||
+			!read(&oh64.AddressOfEntryPoint) ||
+			!read(&oh64.BaseOfCode) ||
+			!read(&oh64.ImageBase) ||
+			!read(&oh64.SectionAlignment) ||
+			!read(&oh64.FileAlignment) ||
+			!read(&oh64.MajorOperatingSystemVersion) ||
+			!read(&oh64.MinorOperatingSystemVersion) ||
+			!read(&oh64.MajorImageVersion) ||
+			!read(&oh64.MinorImageVersion) ||
+			!read(&oh64.MajorSubsystemVersion) ||
+			!read(&oh64.MinorSubsystemVersion) ||
+			!read(&oh64.Win32VersionValue) ||
+			!read(&oh64.SizeOfImage) ||
+			!read(&oh64.SizeOfHeaders) ||
+			!read(&oh64.CheckSum) ||
+			!read(&oh64.Subsystem) ||
+			!read(&oh64.DllCharacteristics) ||
+			!read(&oh64.SizeOfStackReserve) ||
+			!read(&oh64.SizeOfStackCommit) ||
+			!read(&oh64.SizeOfHeapReserve) ||
+			!read(&oh64.SizeOfHeapCommit) ||
+			!read(&oh64.LoaderFlags) ||
+			!read(&oh64.NumberOfRvaAndSizes) {
+			return nil, fmt.Errorf("failure to read PE32+ optional header: %v", err)
+		}
+
+		dd, err := readDataDirectories(r, sz-uint16(oh64MinSz), oh64.NumberOfRvaAndSizes)
+		if err != nil {
+			return nil, err
+		}
+
+		copy(oh64.DataDirectory[:], dd)
+
+		return &oh64, nil
+	default:
+		return nil, fmt.Errorf("optional header has unexpected Magic of 0x%x", ohMagic)
+	}
+}
+
+// readDataDirectories accepts a io.ReadSeeker pointing to data directories in the PE file,
+// its size and number of data directories as seen in optional header.
+// It parses the given size of bytes and returns given number of data directories.
+func readDataDirectories(r io.ReadSeeker, sz uint16, n uint32) ([]DataDirectory, error) {
+	ddSz := binary.Size(DataDirectory{})
+	if uint32(sz) != n*uint32(ddSz) {
+		return nil, fmt.Errorf("size of data directories(%d) is inconsistent with number of data directories(%d)", sz, n)
+	}
+
+	dd := make([]DataDirectory, n)
+	if err := binary.Read(r, binary.LittleEndian, dd); err != nil {
+		return nil, fmt.Errorf("failure to read data directories: %v", err)
+	}
+
+	return dd, nil
+}
diff --git a/libgo/go/debug/pe/file_test.go b/libgo/go/debug/pe/file_test.go
index 6c7fe13..bc41be2 100644
--- a/libgo/go/debug/pe/file_test.go
+++ b/libgo/go/debug/pe/file_test.go
@@ -211,6 +211,44 @@
 			{".debug_ranges", 0xa70, 0x44000, 0xc00, 0x38a00, 0x0, 0x0, 0x0, 0x0, 0x42100040},
 		},
 	},
+	{
+		// testdata/vmlinuz-4.15.0-47-generic is a trimmed down version of Linux Kernel image.
+		// The original Linux Kernel image is about 8M and it is not recommended to add such a big binary file to the repo.
+		// Moreover only a very small portion of the original Kernel image was being parsed by debug/pe package.
+		// In order to identify this portion, the original image was first parsed by modified debug/pe package.
+		// Modification essentially communicated reader's positions before and after parsing.
+		// Finally, bytes between those positions where written to a separate file,
+		// generating trimmed down version Linux Kernel image used in this test case.
+		file: "testdata/vmlinuz-4.15.0-47-generic",
+		hdr:  FileHeader{0x8664, 0x4, 0x0, 0x0, 0x1, 0xa0, 0x206},
+		opthdr: &OptionalHeader64{
+			0x20b, 0x2, 0x14, 0x7c0590, 0x0, 0x168f870, 0x4680, 0x200, 0x0, 0x20, 0x20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1e50000, 0x200, 0x7c3ab0, 0xa, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6,
+			[16]DataDirectory{
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x7c07a0, 0x778},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+				{0x0, 0x0},
+			}},
+		sections: []*SectionHeader{
+			{".setup", 0x41e0, 0x200, 0x41e0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x60500020},
+			{".reloc", 0x20, 0x43e0, 0x20, 0x43e0, 0x0, 0x0, 0x0, 0x0, 0x42100040},
+			{".text", 0x7bc390, 0x4400, 0x7bc390, 0x4400, 0x0, 0x0, 0x0, 0x0, 0x60500020},
+			{".bss", 0x168f870, 0x7c0790, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc8000080},
+		},
+		hasNoDwarfInfo: true,
+	},
 }
 
 func isOptHdrEq(a, b interface{}) bool {
@@ -629,51 +667,95 @@
 	}
 }
 
-func TestInvalidFormat(t *testing.T) {
-	crashers := [][]byte{
-		// https://golang.org/issue/30250
-		[]byte("\x00\x00\x00\x0000000\x00\x00\x00\x00\x00\x00\x000000" +
-			"00000000000000000000" +
-			"000000000\x00\x00\x0000000000" +
-			"00000000000000000000" +
-			"0000000000000000"),
-		// https://golang.org/issue/30253
-		[]byte("L\x01\b\x00regi\x00\x00\x00\x00\x00\x00\x00\x00\xe0\x00\x0f\x03" +
-			"\v\x01\x02\x18\x00\x0e\x00\x00\x00\x1e\x00\x00\x00\x02\x00\x00\x80\x12\x00\x00" +
-			"\x00\x10\x00\x00\x00 \x00\x00\x00\x00@\x00\x00\x10\x00\x00\x00\x02\x00\x00" +
-			"\x04\x00\x00\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x90\x00\x00" +
-			"\x00\x04\x00\x00\x06S\x00\x00\x03\x00\x00\x00\x00\x00 \x00\x00\x10\x00\x00" +
-			"\x00\x00\x10\x00\x00\x10\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00" +
-			"\x00\x00\x00\x00\x00`\x00\x00x\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
-			"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
-			"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
-			"\x00\x00\x00\x00\x00\x00\x00\x00\x04\x80\x00\x00\x18\x00\x00\x00\x00\x00\x00\x00" +
-			"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb8`\x00\x00|\x00\x00\x00" +
-			"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
-			"\x00\x00\x00\x00.text\x00\x00\x00d\f\x00\x00\x00\x10\x00\x00" +
-			"\x00\x0e\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
-			"`\x00P`.data\x00\x00\x00\x10\x00\x00\x00\x00 \x00\x00" +
-			"\x00\x02\x00\x00\x00\x12\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
-			"@\x000\xc0.rdata\x00\x004\x01\x00\x00\x000\x00\x00" +
-			"\x00\x02\x00\x00\x00\x14\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
-			"@\x000@.eh_fram\xa0\x03\x00\x00\x00@\x00\x00" +
-			"\x00\x04\x00\x00\x00\x16\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
-			"@\x000@.bss\x00\x00\x00\x00`\x00\x00\x00\x00P\x00\x00" +
-			"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
-			"\x80\x000\xc0.idata\x00\x00x\x03\x00\x00\x00`\x00\x00" +
-			"\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00" +
-			"0\xc0.CRT\x00\x00\x00\x00\x18\x00\x00\x00\x00p\x00\x00\x00\x02" +
-			"\x00\x00\x00\x1e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00" +
-			"0\xc0.tls\x00\x00\x00\x00 \x00\x00\x00\x00\x80\x00\x00\x00\x02" +
-			"\x00\x00\x00 \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x001\xc9" +
-			"H\x895\x1d"),
+func TestInvalidOptionalHeaderMagic(t *testing.T) {
+	// Files with invalid optional header magic should return error from NewFile()
+	// (see https://golang.org/issue/30250 and https://golang.org/issue/32126 for details).
+	// Input generated by gofuzz
+	data := []byte("\x00\x00\x00\x0000000\x00\x00\x00\x00\x00\x00\x000000" +
+		"00000000000000000000" +
+		"000000000\x00\x00\x0000000000" +
+		"00000000000000000000" +
+		"0000000000000000")
+
+	_, err := NewFile(bytes.NewReader(data))
+	if err == nil {
+		t.Fatal("NewFile succeeded unexpectedly")
+	}
+}
+
+func TestImportedSymbolsNoPanicMissingOptionalHeader(t *testing.T) {
+	// https://golang.org/issue/30250
+	// ImportedSymbols shouldn't panic if optional headers is missing
+	data, err := ioutil.ReadFile("testdata/gcc-amd64-mingw-obj")
+	if err != nil {
+		t.Fatal(err)
 	}
 
-	for _, data := range crashers {
-		f, err := NewFile(bytes.NewReader(data))
-		if err != nil {
-			t.Error(err)
-		}
-		f.ImportedSymbols()
+	f, err := NewFile(bytes.NewReader(data))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if f.OptionalHeader != nil {
+		t.Fatal("expected f.OptionalHeader to be nil, received non-nil optional header")
+	}
+
+	syms, err := f.ImportedSymbols()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(syms) != 0 {
+		t.Fatalf("expected len(syms) == 0, received len(syms) = %d", len(syms))
+	}
+
+}
+
+func TestImportedSymbolsNoPanicWithSliceOutOfBound(t *testing.T) {
+	// https://golang.org/issue/30253
+	// ImportedSymbols shouldn't panic with slice out of bounds
+	// Input generated by gofuzz
+	data := []byte("L\x01\b\x00regi\x00\x00\x00\x00\x00\x00\x00\x00\xe0\x00\x0f\x03" +
+		"\v\x01\x02\x18\x00\x0e\x00\x00\x00\x1e\x00\x00\x00\x02\x00\x00\x80\x12\x00\x00" +
+		"\x00\x10\x00\x00\x00 \x00\x00\x00\x00@\x00\x00\x10\x00\x00\x00\x02\x00\x00" +
+		"\x04\x00\x00\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x90\x00\x00" +
+		"\x00\x04\x00\x00\x06S\x00\x00\x03\x00\x00\x00\x00\x00 \x00\x00\x10\x00\x00" +
+		"\x00\x00\x10\x00\x00\x10\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00" +
+		"\x00\x00\x00\x00\x00`\x00\x00x\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
+		"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
+		"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
+		"\x00\x00\x00\x00\x00\x00\x00\x00\x04\x80\x00\x00\x18\x00\x00\x00\x00\x00\x00\x00" +
+		"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb8`\x00\x00|\x00\x00\x00" +
+		"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
+		"\x00\x00\x00\x00.text\x00\x00\x00d\f\x00\x00\x00\x10\x00\x00" +
+		"\x00\x0e\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
+		"`\x00P`.data\x00\x00\x00\x10\x00\x00\x00\x00 \x00\x00" +
+		"\x00\x02\x00\x00\x00\x12\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
+		"@\x000\xc0.rdata\x00\x004\x01\x00\x00\x000\x00\x00" +
+		"\x00\x02\x00\x00\x00\x14\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
+		"@\x000@.eh_fram\xa0\x03\x00\x00\x00@\x00\x00" +
+		"\x00\x04\x00\x00\x00\x16\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
+		"@\x000@.bss\x00\x00\x00\x00`\x00\x00\x00\x00P\x00\x00" +
+		"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
+		"\x80\x000\xc0.idata\x00\x00x\x03\x00\x00\x00`\x00\x00" +
+		"\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00" +
+		"0\xc0.CRT\x00\x00\x00\x00\x18\x00\x00\x00\x00p\x00\x00\x00\x02" +
+		"\x00\x00\x00\x1e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00" +
+		"0\xc0.tls\x00\x00\x00\x00 \x00\x00\x00\x00\x80\x00\x00\x00\x02" +
+		"\x00\x00\x00 \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x001\xc9" +
+		"H\x895\x1d")
+
+	f, err := NewFile(bytes.NewReader(data))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	syms, err := f.ImportedSymbols()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(syms) != 0 {
+		t.Fatalf("expected len(syms) == 0, received len(syms) = %d", len(syms))
 	}
 }
diff --git a/libgo/go/debug/pe/testdata/vmlinuz-4.15.0-47-generic b/libgo/go/debug/pe/testdata/vmlinuz-4.15.0-47-generic
new file mode 100644
index 0000000..d01cf61
--- /dev/null
+++ b/libgo/go/debug/pe/testdata/vmlinuz-4.15.0-47-generic
Binary files differ
diff --git a/libgo/go/encoding/asn1/asn1.go b/libgo/go/encoding/asn1/asn1.go
index 3cfd9d1..fd4dd68 100644
--- a/libgo/go/encoding/asn1/asn1.go
+++ b/libgo/go/encoding/asn1/asn1.go
@@ -27,6 +27,7 @@
 	"reflect"
 	"strconv"
 	"time"
+	"unicode/utf16"
 	"unicode/utf8"
 )
 
@@ -475,6 +476,29 @@
 	return string(bytes), nil
 }
 
+// BMPString
+
+// parseBMPString parses an ASN.1 BMPString (Basic Multilingual Plane of
+// ISO/IEC/ITU 10646-1) from the given byte slice and returns it.
+func parseBMPString(bmpString []byte) (string, error) {
+	if len(bmpString)%2 != 0 {
+		return "", errors.New("pkcs12: odd-length BMP string")
+	}
+
+	// Strip terminator if present.
+	if l := len(bmpString); l >= 2 && bmpString[l-1] == 0 && bmpString[l-2] == 0 {
+		bmpString = bmpString[:l-2]
+	}
+
+	s := make([]uint16, 0, len(bmpString)/2)
+	for len(bmpString) > 0 {
+		s = append(s, uint16(bmpString[0])<<8+uint16(bmpString[1]))
+		bmpString = bmpString[2:]
+	}
+
+	return string(utf16.Decode(s)), nil
+}
+
 // A RawValue represents an undecoded ASN.1 object.
 type RawValue struct {
 	Class, Tag int
@@ -589,7 +613,7 @@
 			return
 		}
 		switch t.tag {
-		case TagIA5String, TagGeneralString, TagT61String, TagUTF8String, TagNumericString:
+		case TagIA5String, TagGeneralString, TagT61String, TagUTF8String, TagNumericString, TagBMPString:
 			// We pretend that various other string types are
 			// PRINTABLE STRINGs so that a sequence of them can be
 			// parsed into a []string.
@@ -691,6 +715,8 @@
 				result, err = parseGeneralizedTime(innerBytes)
 			case TagOctetString:
 				result = innerBytes
+			case TagBMPString:
+				result, err = parseBMPString(innerBytes)
 			default:
 				// If we don't know how to handle the type, we just leave Value as nil.
 			}
@@ -759,7 +785,7 @@
 	if universalTag == TagPrintableString {
 		if t.class == ClassUniversal {
 			switch t.tag {
-			case TagIA5String, TagGeneralString, TagT61String, TagUTF8String, TagNumericString:
+			case TagIA5String, TagGeneralString, TagT61String, TagUTF8String, TagNumericString, TagBMPString:
 				universalTag = t.tag
 			}
 		} else if params.stringType != 0 {
@@ -957,6 +983,9 @@
 			// that allow the encoding to change midstring and
 			// such. We give up and pass it as an 8-bit string.
 			v, err = parseT61String(innerBytes)
+		case TagBMPString:
+			v, err = parseBMPString(innerBytes)
+
 		default:
 			err = SyntaxError{fmt.Sprintf("internal error: unknown string type %d", universalTag)}
 		}
diff --git a/libgo/go/encoding/asn1/asn1_test.go b/libgo/go/encoding/asn1/asn1_test.go
index f0a54e0..d5649bf 100644
--- a/libgo/go/encoding/asn1/asn1_test.go
+++ b/libgo/go/encoding/asn1/asn1_test.go
@@ -6,6 +6,7 @@
 
 import (
 	"bytes"
+	"encoding/hex"
 	"fmt"
 	"math"
 	"math/big"
@@ -1096,3 +1097,35 @@
 		}
 	}
 }
+
+var bmpStringTests = []struct {
+	decoded    string
+	encodedHex string
+}{
+	{"", "0000"},
+	// Example from https://tools.ietf.org/html/rfc7292#appendix-B.
+	{"Beavis", "0042006500610076006900730000"},
+	// Some characters from the "Letterlike Symbols Unicode block".
+	{"\u2115 - Double-struck N", "21150020002d00200044006f00750062006c0065002d00730074007200750063006b0020004e0000"},
+}
+
+func TestBMPString(t *testing.T) {
+	for i, test := range bmpStringTests {
+		encoded, err := hex.DecodeString(test.encodedHex)
+		if err != nil {
+			t.Fatalf("#%d: failed to decode from hex string", i)
+		}
+
+		decoded, err := parseBMPString(encoded)
+
+		if err != nil {
+			t.Errorf("#%d: decoding output gave an error: %s", i, err)
+			continue
+		}
+
+		if decoded != test.decoded {
+			t.Errorf("#%d: decoding output resulted in %q, but it should have been %q", i, decoded, test.decoded)
+			continue
+		}
+	}
+}
diff --git a/libgo/go/encoding/asn1/common.go b/libgo/go/encoding/asn1/common.go
index 255d1eb..e2aa8bd 100644
--- a/libgo/go/encoding/asn1/common.go
+++ b/libgo/go/encoding/asn1/common.go
@@ -37,6 +37,7 @@
 	TagUTCTime         = 23
 	TagGeneralizedTime = 24
 	TagGeneralString   = 27
+	TagBMPString       = 30
 )
 
 // ASN.1 class types represent the namespace of the tag.
diff --git a/libgo/go/encoding/base32/base32.go b/libgo/go/encoding/base32/base32.go
index e14d2d4..2f7d363 100644
--- a/libgo/go/encoding/base32/base32.go
+++ b/libgo/go/encoding/base32/base32.go
@@ -6,10 +6,8 @@
 package base32
 
 import (
-	"bytes"
 	"io"
 	"strconv"
-	"strings"
 )
 
 /*
@@ -62,13 +60,6 @@
 // It is typically used in DNS.
 var HexEncoding = NewEncoding(encodeHex)
 
-var removeNewlinesMapper = func(r rune) rune {
-	if r == '\r' || r == '\n' {
-		return -1
-	}
-	return r
-}
-
 // WithPadding creates a new encoding identical to enc except
 // with a specified padding character, or NoPadding to disable padding.
 // The padding character must not be '\r' or '\n', must not
@@ -302,7 +293,7 @@
 					// We have reached the end and are missing padding
 					return n, false, CorruptInputError(olen - len(src) - j)
 				}
-				// We have reached the end and are not expecing any padding
+				// We have reached the end and are not expecting any padding
 				dlen, end = j, true
 				break
 			}
@@ -372,17 +363,18 @@
 // number of bytes successfully written and CorruptInputError.
 // New line characters (\r and \n) are ignored.
 func (enc *Encoding) Decode(dst, src []byte) (n int, err error) {
-	src = bytes.Map(removeNewlinesMapper, src)
-	n, _, err = enc.decode(dst, src)
+	buf := make([]byte, len(src))
+	l := stripNewlines(buf, src)
+	n, _, err = enc.decode(dst, buf[:l])
 	return
 }
 
 // DecodeString returns the bytes represented by the base32 string s.
 func (enc *Encoding) DecodeString(s string) ([]byte, error) {
-	s = strings.Map(removeNewlinesMapper, s)
-	dbuf := make([]byte, enc.DecodedLen(len(s)))
-	n, _, err := enc.decode(dbuf, []byte(s))
-	return dbuf[:n], err
+	buf := []byte(s)
+	l := stripNewlines(buf, buf)
+	n, _, err := enc.decode(buf, buf[:l])
+	return buf[:n], err
 }
 
 type decoder struct {
@@ -497,18 +489,25 @@
 	wrapped io.Reader
 }
 
+// stripNewlines removes newline characters and returns the number
+// of non-newline characters copied to dst.
+func stripNewlines(dst, src []byte) int {
+	offset := 0
+	for _, b := range src {
+		if b == '\r' || b == '\n' {
+			continue
+		}
+		dst[offset] = b
+		offset++
+	}
+	return offset
+}
+
 func (r *newlineFilteringReader) Read(p []byte) (int, error) {
 	n, err := r.wrapped.Read(p)
 	for n > 0 {
-		offset := 0
-		for i, b := range p[0:n] {
-			if b != '\r' && b != '\n' {
-				if i != offset {
-					p[offset] = b
-				}
-				offset++
-			}
-		}
+		s := p[0:n]
+		offset := stripNewlines(s, s)
 		if err != nil || offset > 0 {
 			return offset, err
 		}
diff --git a/libgo/go/encoding/base32/base32_test.go b/libgo/go/encoding/base32/base32_test.go
index eb14f1e..0b611db 100644
--- a/libgo/go/encoding/base32/base32_test.go
+++ b/libgo/go/encoding/base32/base32_test.go
@@ -445,6 +445,15 @@
 	}
 }
 
+func BenchmarkEncode(b *testing.B) {
+	data := make([]byte, 8192)
+	buf := make([]byte, StdEncoding.EncodedLen(len(data)))
+	b.SetBytes(int64(len(data)))
+	for i := 0; i < b.N; i++ {
+		StdEncoding.Encode(buf, data)
+	}
+}
+
 func BenchmarkEncodeToString(b *testing.B) {
 	data := make([]byte, 8192)
 	b.SetBytes(int64(len(data)))
@@ -453,6 +462,15 @@
 	}
 }
 
+func BenchmarkDecode(b *testing.B) {
+	data := make([]byte, StdEncoding.EncodedLen(8192))
+	StdEncoding.Encode(data, make([]byte, 8192))
+	buf := make([]byte, 8192)
+	b.SetBytes(int64(len(data)))
+	for i := 0; i < b.N; i++ {
+		StdEncoding.Decode(buf, data)
+	}
+}
 func BenchmarkDecodeString(b *testing.B) {
 	data := StdEncoding.EncodeToString(make([]byte, 8192))
 	b.SetBytes(int64(len(data)))
diff --git a/libgo/go/encoding/base64/base64.go b/libgo/go/encoding/base64/base64.go
index 0822101..690d3ce 100644
--- a/libgo/go/encoding/base64/base64.go
+++ b/libgo/go/encoding/base64/base64.go
@@ -86,6 +86,9 @@
 // Strict creates a new encoding identical to enc except with
 // strict decoding enabled. In this mode, the decoder requires that
 // trailing padding bits are zero, as described in RFC 4648 section 3.5.
+//
+// Note that the input is still malleable, as new line characters
+// (CR and LF) are still ignored.
 func (enc Encoding) Strict() *Encoding {
 	enc.strict = true
 	return &enc
diff --git a/libgo/go/encoding/binary/binary.go b/libgo/go/encoding/binary/binary.go
index 8c2d1d9..a99ca01 100644
--- a/libgo/go/encoding/binary/binary.go
+++ b/libgo/go/encoding/binary/binary.go
@@ -26,6 +26,7 @@
 	"io"
 	"math"
 	"reflect"
+	"sync"
 )
 
 // A ByteOrder specifies how to convert byte sequences into
@@ -184,6 +185,10 @@
 			*data = int64(order.Uint64(bs))
 		case *uint64:
 			*data = order.Uint64(bs)
+		case *float32:
+			*data = math.Float32frombits(order.Uint32(bs))
+		case *float64:
+			*data = math.Float64frombits(order.Uint64(bs))
 		case []bool:
 			for i, x := range bs { // Easier to loop over the input for 8-bit values.
 				data[i] = x != 0
@@ -218,8 +223,20 @@
 			for i := range data {
 				data[i] = order.Uint64(bs[8*i:])
 			}
+		case []float32:
+			for i := range data {
+				data[i] = math.Float32frombits(order.Uint32(bs[4*i:]))
+			}
+		case []float64:
+			for i := range data {
+				data[i] = math.Float64frombits(order.Uint64(bs[8*i:]))
+			}
+		default:
+			n = 0 // fast path doesn't apply
 		}
-		return nil
+		if n != 0 {
+			return nil
+		}
 	}
 
 	// Fallback to reflect-based decoding.
@@ -338,6 +355,22 @@
 			for i, x := range v {
 				order.PutUint64(bs[8*i:], x)
 			}
+		case *float32:
+			order.PutUint32(bs, math.Float32bits(*v))
+		case float32:
+			order.PutUint32(bs, math.Float32bits(v))
+		case []float32:
+			for i, x := range v {
+				order.PutUint32(bs[4*i:], math.Float32bits(x))
+			}
+		case *float64:
+			order.PutUint64(bs, math.Float64bits(*v))
+		case float64:
+			order.PutUint64(bs, math.Float64bits(v))
+		case []float64:
+			for i, x := range v {
+				order.PutUint64(bs[8*i:], math.Float64bits(x))
+			}
 		}
 		_, err := w.Write(bs)
 		return err
@@ -363,18 +396,32 @@
 	return dataSize(reflect.Indirect(reflect.ValueOf(v)))
 }
 
+var structSize sync.Map // map[reflect.Type]int
+
 // dataSize returns the number of bytes the actual data represented by v occupies in memory.
 // For compound structures, it sums the sizes of the elements. Thus, for instance, for a slice
 // it returns the length of the slice times the element size and does not count the memory
 // occupied by the header. If the type of v is not acceptable, dataSize returns -1.
 func dataSize(v reflect.Value) int {
-	if v.Kind() == reflect.Slice {
+	switch v.Kind() {
+	case reflect.Slice:
 		if s := sizeof(v.Type().Elem()); s >= 0 {
 			return s * v.Len()
 		}
 		return -1
+
+	case reflect.Struct:
+		t := v.Type()
+		if size, ok := structSize.Load(t); ok {
+			return size.(int)
+		}
+		size := sizeof(t)
+		structSize.Store(t, size)
+		return size
+
+	default:
+		return sizeof(v.Type())
 	}
-	return sizeof(v.Type())
 }
 
 // sizeof returns the size >= 0 of variables for the given type or -1 if the type is not acceptable.
@@ -677,6 +724,14 @@
 		return 8 * len(data)
 	case []uint64:
 		return 8 * len(data)
+	case float32, *float32:
+		return 4
+	case float64, *float64:
+		return 8
+	case []float32:
+		return 4 * len(data)
+	case []float64:
+		return 8 * len(data)
 	}
 	return 0
 }
diff --git a/libgo/go/encoding/binary/binary_test.go b/libgo/go/encoding/binary/binary_test.go
index af40257..aeb4212 100644
--- a/libgo/go/encoding/binary/binary_test.go
+++ b/libgo/go/encoding/binary/binary_test.go
@@ -6,10 +6,13 @@
 
 import (
 	"bytes"
+	"fmt"
 	"io"
+	"io/ioutil"
 	"math"
 	"reflect"
 	"strings"
+	"sync"
 	"testing"
 )
 
@@ -296,6 +299,58 @@
 	}
 }
 
+func TestSizeStructCache(t *testing.T) {
+	// Reset the cache, otherwise multiple test runs fail.
+	structSize = sync.Map{}
+
+	count := func() int {
+		var i int
+		structSize.Range(func(_, _ interface{}) bool {
+			i++
+			return true
+		})
+		return i
+	}
+
+	var total int
+	added := func() int {
+		delta := count() - total
+		total += delta
+		return delta
+	}
+
+	type foo struct {
+		A uint32
+	}
+
+	type bar struct {
+		A Struct
+		B foo
+		C Struct
+	}
+
+	testcases := []struct {
+		val  interface{}
+		want int
+	}{
+		{new(foo), 1},
+		{new(bar), 1},
+		{new(bar), 0},
+		{new(struct{ A Struct }), 1},
+		{new(struct{ A Struct }), 0},
+	}
+
+	for _, tc := range testcases {
+		if Size(tc.val) == -1 {
+			t.Fatalf("Can't get the size of %T", tc.val)
+		}
+
+		if n := added(); n != tc.want {
+			t.Errorf("Sizing %T added %d entries to the cache, want %d", tc.val, n, tc.want)
+		}
+	}
+}
+
 // An attempt to read into a struct with an unexported field will
 // panic. This is probably not the best choice, but at this point
 // anything else would be an API change.
@@ -397,6 +452,35 @@
 	}
 }
 
+func TestReadInvalidDestination(t *testing.T) {
+	testReadInvalidDestination(t, BigEndian)
+	testReadInvalidDestination(t, LittleEndian)
+}
+
+func testReadInvalidDestination(t *testing.T, order ByteOrder) {
+	destinations := []interface{}{
+		int8(0),
+		int16(0),
+		int32(0),
+		int64(0),
+
+		uint8(0),
+		uint16(0),
+		uint32(0),
+		uint64(0),
+
+		bool(false),
+	}
+
+	for _, dst := range destinations {
+		err := Read(bytes.NewReader([]byte{1, 2, 3, 4, 5, 6, 7, 8}), order, dst)
+		want := fmt.Sprintf("binary.Read: invalid type %T", dst)
+		if err == nil || err.Error() != want {
+			t.Fatalf("for type %T: got %q; want %q", dst, err, want)
+		}
+	}
+}
+
 type byteSliceReader struct {
 	remain []byte
 }
@@ -436,6 +520,14 @@
 	}
 }
 
+func BenchmarkWriteStruct(b *testing.B) {
+	b.SetBytes(int64(Size(&s)))
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		Write(ioutil.Discard, BigEndian, &s)
+	}
+}
+
 func BenchmarkReadInts(b *testing.B) {
 	var ls Struct
 	bsr := &byteSliceReader{}
@@ -542,3 +634,75 @@
 		LittleEndian.PutUint64(putbuf[:], uint64(i))
 	}
 }
+
+func BenchmarkReadFloats(b *testing.B) {
+	var ls Struct
+	bsr := &byteSliceReader{}
+	var r io.Reader = bsr
+	b.SetBytes(4 + 8)
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		bsr.remain = big[30:]
+		Read(r, BigEndian, &ls.Float32)
+		Read(r, BigEndian, &ls.Float64)
+	}
+	b.StopTimer()
+	want := s
+	want.Int8 = 0
+	want.Int16 = 0
+	want.Int32 = 0
+	want.Int64 = 0
+	want.Uint8 = 0
+	want.Uint16 = 0
+	want.Uint32 = 0
+	want.Uint64 = 0
+	want.Complex64 = 0
+	want.Complex128 = 0
+	want.Array = [4]uint8{0, 0, 0, 0}
+	want.Bool = false
+	want.BoolArray = [4]bool{false, false, false, false}
+	if b.N > 0 && !reflect.DeepEqual(ls, want) {
+		b.Fatalf("struct doesn't match:\ngot  %v;\nwant %v", ls, want)
+	}
+}
+
+func BenchmarkWriteFloats(b *testing.B) {
+	buf := new(bytes.Buffer)
+	var w io.Writer = buf
+	b.SetBytes(4 + 8)
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		buf.Reset()
+		Write(w, BigEndian, s.Float32)
+		Write(w, BigEndian, s.Float64)
+	}
+	b.StopTimer()
+	if b.N > 0 && !bytes.Equal(buf.Bytes(), big[30:30+4+8]) {
+		b.Fatalf("first half doesn't match: %x %x", buf.Bytes(), big[30:30+4+8])
+	}
+}
+
+func BenchmarkReadSlice1000Float32s(b *testing.B) {
+	bsr := &byteSliceReader{}
+	slice := make([]float32, 1000)
+	buf := make([]byte, len(slice)*4)
+	b.SetBytes(int64(len(buf)))
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		bsr.remain = buf
+		Read(bsr, BigEndian, slice)
+	}
+}
+
+func BenchmarkWriteSlice1000Float32s(b *testing.B) {
+	slice := make([]float32, 1000)
+	buf := new(bytes.Buffer)
+	var w io.Writer = buf
+	b.SetBytes(4 * 1000)
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		buf.Reset()
+		Write(w, BigEndian, slice)
+	}
+	b.StopTimer()
+}
diff --git a/libgo/go/encoding/csv/fuzz.go b/libgo/go/encoding/csv/fuzz.go
index dc33893..8be21d5 100644
--- a/libgo/go/encoding/csv/fuzz.go
+++ b/libgo/go/encoding/csv/fuzz.go
@@ -17,13 +17,13 @@
 	buf := new(bytes.Buffer)
 
 	for _, tt := range []Reader{
-		Reader{},
-		Reader{Comma: ';'},
-		Reader{Comma: '\t'},
-		Reader{LazyQuotes: true},
-		Reader{TrimLeadingSpace: true},
-		Reader{Comment: '#'},
-		Reader{Comment: ';'},
+		{},
+		{Comma: ';'},
+		{Comma: '\t'},
+		{LazyQuotes: true},
+		{TrimLeadingSpace: true},
+		{Comment: '#'},
+		{Comment: ';'},
 	} {
 		r := NewReader(bytes.NewReader(data))
 		r.Comma = tt.Comma
diff --git a/libgo/go/encoding/gob/codec_test.go b/libgo/go/encoding/gob/codec_test.go
index 494abc9..f38e88b 100644
--- a/libgo/go/encoding/gob/codec_test.go
+++ b/libgo/go/encoding/gob/codec_test.go
@@ -591,7 +591,7 @@
 		B:        18,
 		C:        -5,
 		M:        map[string]*float64{"pi": &pi, "e": &e},
-		M2:       map[int]T3{4: T3{X: pi, Z: &meaning}, 10: T3{X: e, Z: &fingers}},
+		M2:       map[int]T3{4: {X: pi, Z: &meaning}, 10: {X: e, Z: &fingers}},
 		Mstring:  map[string]string{"pi": "3.14", "e": "2.71"},
 		Mintptr:  map[int]*int{meaning: &fingers, fingers: &meaning},
 		Mcomp:    map[complex128]complex128{comp1: comp2, comp2: comp1},
diff --git a/libgo/go/encoding/gob/gobencdec_test.go b/libgo/go/encoding/gob/gobencdec_test.go
index 41a06b26..6d2c8db 100644
--- a/libgo/go/encoding/gob/gobencdec_test.go
+++ b/libgo/go/encoding/gob/gobencdec_test.go
@@ -707,7 +707,7 @@
 
 // Another bug: this caused a crash with the new Go1 Time type.
 // We throw in a gob-encoding array, to test another case of isZero,
-// and a struct containing an nil interface, to test a third.
+// and a struct containing a nil interface, to test a third.
 type isZeroBug struct {
 	T time.Time
 	S string
diff --git a/libgo/go/encoding/json/bench_test.go b/libgo/go/encoding/json/bench_test.go
index f2592e3..4a5fe7e 100644
--- a/libgo/go/encoding/json/bench_test.go
+++ b/libgo/go/encoding/json/bench_test.go
@@ -297,6 +297,22 @@
 	})
 }
 
+func BenchmarkIssue34127(b *testing.B) {
+	b.ReportAllocs()
+	j := struct {
+		Bar string `json:"bar,string"`
+	}{
+		Bar: `foobar`,
+	}
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			if _, err := Marshal(&j); err != nil {
+				b.Fatal(err)
+			}
+		}
+	})
+}
+
 func BenchmarkUnmapped(b *testing.B) {
 	b.ReportAllocs()
 	j := []byte(`{"s": "hello", "y": 2, "o": {"x": 0}, "a": [1, 99, {"x": 1}]}`)
@@ -373,3 +389,22 @@
 		})
 	}
 }
+
+func BenchmarkEncodeMarshaler(b *testing.B) {
+	b.ReportAllocs()
+
+	m := struct {
+		A int
+		B RawMessage
+	}{}
+
+	b.RunParallel(func(pb *testing.PB) {
+		enc := NewEncoder(ioutil.Discard)
+
+		for pb.Next() {
+			if err := enc.Encode(&m); err != nil {
+				b.Fatal("Encode:", err)
+			}
+		}
+	})
+}
diff --git a/libgo/go/encoding/json/decode.go b/libgo/go/encoding/json/decode.go
index cbd71ac..b434846 100644
--- a/libgo/go/encoding/json/decode.go
+++ b/libgo/go/encoding/json/decode.go
@@ -72,7 +72,8 @@
 // use. If the map is nil, Unmarshal allocates a new map. Otherwise Unmarshal
 // reuses the existing map, keeping existing entries. Unmarshal then stores
 // key-value pairs from the JSON object into the map. The map's key type must
-// either be a string, an integer, or implement encoding.TextUnmarshaler.
+// either be any string type, an integer, implement json.Unmarshaler, or
+// implement encoding.TextUnmarshaler.
 //
 // If a JSON value is not appropriate for a given target type,
 // or if a JSON number overflows the target type, Unmarshal
@@ -199,66 +200,6 @@
 	return strconv.ParseInt(string(n), 10, 64)
 }
 
-// isValidNumber reports whether s is a valid JSON number literal.
-func isValidNumber(s string) bool {
-	// This function implements the JSON numbers grammar.
-	// See https://tools.ietf.org/html/rfc7159#section-6
-	// and https://json.org/number.gif
-
-	if s == "" {
-		return false
-	}
-
-	// Optional -
-	if s[0] == '-' {
-		s = s[1:]
-		if s == "" {
-			return false
-		}
-	}
-
-	// Digits
-	switch {
-	default:
-		return false
-
-	case s[0] == '0':
-		s = s[1:]
-
-	case '1' <= s[0] && s[0] <= '9':
-		s = s[1:]
-		for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
-			s = s[1:]
-		}
-	}
-
-	// . followed by 1 or more digits.
-	if len(s) >= 2 && s[0] == '.' && '0' <= s[1] && s[1] <= '9' {
-		s = s[2:]
-		for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
-			s = s[1:]
-		}
-	}
-
-	// e or E followed by an optional - or + and
-	// 1 or more digits.
-	if len(s) >= 2 && (s[0] == 'e' || s[0] == 'E') {
-		s = s[1:]
-		if s[0] == '+' || s[0] == '-' {
-			s = s[1:]
-			if s == "" {
-				return false
-			}
-		}
-		for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
-			s = s[1:]
-		}
-	}
-
-	// Make sure we are at the end.
-	return s == ""
-}
-
 // decodeState represents the state while decoding a JSON value.
 type decodeState struct {
 	data         []byte
@@ -272,6 +213,9 @@
 	savedError            error
 	useNumber             bool
 	disallowUnknownFields bool
+	// safeUnquote is the number of current string literal bytes that don't
+	// need to be unquoted. When negative, no bytes need unquoting.
+	safeUnquote int
 }
 
 // readIndex returns the position of the last byte read.
@@ -373,13 +317,27 @@
 Switch:
 	switch data[i-1] {
 	case '"': // string
+		// safeUnquote is initialized at -1, which means that all bytes
+		// checked so far can be unquoted at a later time with no work
+		// at all. When reaching the closing '"', if safeUnquote is
+		// still -1, all bytes can be unquoted with no work. Otherwise,
+		// only those bytes up until the first '\\' or non-ascii rune
+		// can be safely unquoted.
+		safeUnquote := -1
 		for ; i < len(data); i++ {
-			switch data[i] {
-			case '\\':
+			if c := data[i]; c == '\\' {
+				if safeUnquote < 0 { // first unsafe byte
+					safeUnquote = int(i - d.off)
+				}
 				i++ // escaped char
-			case '"':
+			} else if c == '"' {
+				d.safeUnquote = safeUnquote
 				i++ // tokenize the closing quote too
 				break Switch
+			} else if c >= utf8.RuneSelf {
+				if safeUnquote < 0 { // first unsafe byte
+					safeUnquote = int(i - d.off)
+				}
 			}
 		}
 	case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-': // number
@@ -475,8 +433,9 @@
 
 // indirect walks down v allocating pointers as needed,
 // until it gets to a non-pointer.
-// if it encounters an Unmarshaler, indirect stops and returns that.
-// if decodingNull is true, indirect stops at the last pointer so it can be set to nil.
+// If it encounters an Unmarshaler, indirect stops and returns that.
+// If decodingNull is true, indirect stops at the first settable pointer so it
+// can be set to nil.
 func indirect(v reflect.Value, decodingNull bool) (Unmarshaler, encoding.TextUnmarshaler, reflect.Value) {
 	// Issue #24153 indicates that it is generally not a guaranteed property
 	// that you may round-trip a reflect.Value by calling Value.Addr().Elem()
@@ -515,7 +474,7 @@
 			break
 		}
 
-		if v.Elem().Kind() != reflect.Ptr && decodingNull && v.CanSet() {
+		if decodingNull && v.CanSet() {
 			break
 		}
 
@@ -732,7 +691,7 @@
 		start := d.readIndex()
 		d.rescanLiteral()
 		item := d.data[start:d.readIndex()]
-		key, ok := unquoteBytes(item)
+		key, ok := d.unquoteBytes(item)
 		if !ok {
 			panic(phasePanicMsg)
 		}
@@ -831,14 +790,14 @@
 			kt := t.Key()
 			var kv reflect.Value
 			switch {
-			case kt.Kind() == reflect.String:
-				kv = reflect.ValueOf(key).Convert(kt)
 			case reflect.PtrTo(kt).Implements(textUnmarshalerType):
 				kv = reflect.New(kt)
 				if err := d.literalStore(item, kv, true); err != nil {
 					return err
 				}
 				kv = kv.Elem()
+			case kt.Kind() == reflect.String:
+				kv = reflect.ValueOf(key).Convert(kt)
 			default:
 				switch kt.Kind() {
 				case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
@@ -933,7 +892,7 @@
 			d.saveError(&UnmarshalTypeError{Value: val, Type: v.Type(), Offset: int64(d.readIndex())})
 			return nil
 		}
-		s, ok := unquoteBytes(item)
+		s, ok := d.unquoteBytes(item)
 		if !ok {
 			if fromQuoted {
 				return fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into %v", item, v.Type())
@@ -984,7 +943,7 @@
 		}
 
 	case '"': // string
-		s, ok := unquoteBytes(item)
+		s, ok := d.unquoteBytes(item)
 		if !ok {
 			if fromQuoted {
 				return fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into %v", item, v.Type())
@@ -1007,6 +966,9 @@
 			}
 			v.SetBytes(b[:n])
 		case reflect.String:
+			if v.Type() == numberType && !isValidNumber(string(s)) {
+				return fmt.Errorf("json: invalid number literal, trying to unmarshal %q into Number", item)
+			}
 			v.SetString(string(s))
 		case reflect.Interface:
 			if v.NumMethod() == 0 {
@@ -1027,10 +989,9 @@
 		switch v.Kind() {
 		default:
 			if v.Kind() == reflect.String && v.Type() == numberType {
+				// s must be a valid number, because it's
+				// already been tokenized.
 				v.SetString(s)
-				if !isValidNumber(s) {
-					return fmt.Errorf("json: invalid number literal, trying to unmarshal %q into Number", item)
-				}
 				break
 			}
 			if fromQuoted {
@@ -1142,7 +1103,7 @@
 		start := d.readIndex()
 		d.rescanLiteral()
 		item := d.data[start:d.readIndex()]
-		key, ok := unquote(item)
+		key, ok := d.unquote(item)
 		if !ok {
 			panic(phasePanicMsg)
 		}
@@ -1191,7 +1152,7 @@
 		return c == 't'
 
 	case '"': // string
-		s, ok := unquote(item)
+		s, ok := d.unquote(item)
 		if !ok {
 			panic(phasePanicMsg)
 		}
@@ -1234,38 +1195,26 @@
 
 // unquote converts a quoted JSON string literal s into an actual string t.
 // The rules are different than for Go, so cannot use strconv.Unquote.
-func unquote(s []byte) (t string, ok bool) {
-	s, ok = unquoteBytes(s)
+// The first byte in s must be '"'.
+func (d *decodeState) unquote(s []byte) (t string, ok bool) {
+	s, ok = d.unquoteBytes(s)
 	t = string(s)
 	return
 }
 
-func unquoteBytes(s []byte) (t []byte, ok bool) {
-	if len(s) < 2 || s[0] != '"' || s[len(s)-1] != '"' {
+func (d *decodeState) unquoteBytes(s []byte) (t []byte, ok bool) {
+	// We already know that s[0] == '"'. However, we don't know that the
+	// closing quote exists in all cases, such as when the string is nested
+	// via the ",string" option.
+	if len(s) < 2 || s[len(s)-1] != '"' {
 		return
 	}
 	s = s[1 : len(s)-1]
 
-	// Check for unusual characters. If there are none,
-	// then no unquoting is needed, so return a slice of the
-	// original bytes.
-	r := 0
-	for r < len(s) {
-		c := s[r]
-		if c == '\\' || c == '"' || c < ' ' {
-			break
-		}
-		if c < utf8.RuneSelf {
-			r++
-			continue
-		}
-		rr, size := utf8.DecodeRune(s[r:])
-		if rr == utf8.RuneError && size == 1 {
-			break
-		}
-		r += size
-	}
-	if r == len(s) {
+	// If there are no unusual characters, no unquoting is needed, so return
+	// a slice of the original bytes.
+	r := d.safeUnquote
+	if r == -1 {
 		return s, true
 	}
 
diff --git a/libgo/go/encoding/json/decode_test.go b/libgo/go/encoding/json/decode_test.go
index 3f25893..498bd97 100644
--- a/libgo/go/encoding/json/decode_test.go
+++ b/libgo/go/encoding/json/decode_test.go
@@ -145,23 +145,15 @@
 var _ encoding.TextUnmarshaler = (*u8marshal)(nil)
 
 var (
-	um0, um1 unmarshaler // target2 of unmarshaling
-	ump      = &um1
 	umtrue   = unmarshaler{true}
 	umslice  = []unmarshaler{{true}}
-	umslicep = new([]unmarshaler)
 	umstruct = ustruct{unmarshaler{true}}
 
-	um0T, um1T   unmarshalerText // target2 of unmarshaling
-	umpType      = &um1T
-	umtrueXY     = unmarshalerText{"x", "y"}
-	umsliceXY    = []unmarshalerText{{"x", "y"}}
-	umslicepType = new([]unmarshalerText)
-	umstructType = new(ustructText)
-	umstructXY   = ustructText{unmarshalerText{"x", "y"}}
+	umtrueXY   = unmarshalerText{"x", "y"}
+	umsliceXY  = []unmarshalerText{{"x", "y"}}
+	umstructXY = ustructText{unmarshalerText{"x", "y"}}
 
-	ummapType = map[unmarshalerText]bool{}
-	ummapXY   = map[unmarshalerText]bool{{"x", "y"}: true}
+	ummapXY = map[unmarshalerText]bool{{"x", "y"}: true}
 )
 
 // Test data structures for anonymous fields.
@@ -279,9 +271,6 @@
 
 func (unexportedWithMethods) F() {}
 
-func sliceAddr(x []int) *[]int                 { return &x }
-func mapAddr(x map[string]int) *map[string]int { return &x }
-
 type byteWithMarshalJSON byte
 
 func (b byteWithMarshalJSON) MarshalJSON() ([]byte, error) {
@@ -400,7 +389,7 @@
 
 type unmarshalTest struct {
 	in                    string
-	ptr                   interface{}
+	ptr                   interface{} // new(type)
 	out                   interface{}
 	err                   error
 	useNumber             bool
@@ -412,6 +401,11 @@
 	B bool `json:",string"`
 }
 
+type DoublePtr struct {
+	I **int
+	J **int
+}
+
 var unmarshalTests = []unmarshalTest{
 	// basic types
 	{in: `true`, ptr: new(bool), out: true},
@@ -459,6 +453,7 @@
 	{in: `[1, 2, 3+]`, err: &SyntaxError{"invalid character '+' after array element", 9}},
 	{in: `{"X":12x}`, err: &SyntaxError{"invalid character 'x' after object key:value pair", 8}, useNumber: true},
 	{in: `[2, 3`, err: &SyntaxError{msg: "unexpected end of JSON input", Offset: 5}},
+	{in: `{"F3": -}`, ptr: new(V), out: V{F3: Number("-")}, err: &SyntaxError{msg: "invalid character '}' in numeric literal", Offset: 9}},
 
 	// raw value errors
 	{in: "\x01 42", err: &SyntaxError{"invalid character '\\x01' looking for beginning of value", 1}},
@@ -493,18 +488,18 @@
 	{in: pallValueCompact, ptr: new(*All), out: &pallValue},
 
 	// unmarshal interface test
-	{in: `{"T":false}`, ptr: &um0, out: umtrue}, // use "false" so test will fail if custom unmarshaler is not called
-	{in: `{"T":false}`, ptr: &ump, out: &umtrue},
-	{in: `[{"T":false}]`, ptr: &umslice, out: umslice},
-	{in: `[{"T":false}]`, ptr: &umslicep, out: &umslice},
-	{in: `{"M":{"T":"x:y"}}`, ptr: &umstruct, out: umstruct},
+	{in: `{"T":false}`, ptr: new(unmarshaler), out: umtrue}, // use "false" so test will fail if custom unmarshaler is not called
+	{in: `{"T":false}`, ptr: new(*unmarshaler), out: &umtrue},
+	{in: `[{"T":false}]`, ptr: new([]unmarshaler), out: umslice},
+	{in: `[{"T":false}]`, ptr: new(*[]unmarshaler), out: &umslice},
+	{in: `{"M":{"T":"x:y"}}`, ptr: new(ustruct), out: umstruct},
 
 	// UnmarshalText interface test
-	{in: `"x:y"`, ptr: &um0T, out: umtrueXY},
-	{in: `"x:y"`, ptr: &umpType, out: &umtrueXY},
-	{in: `["x:y"]`, ptr: &umsliceXY, out: umsliceXY},
-	{in: `["x:y"]`, ptr: &umslicepType, out: &umsliceXY},
-	{in: `{"M":"x:y"}`, ptr: umstructType, out: umstructXY},
+	{in: `"x:y"`, ptr: new(unmarshalerText), out: umtrueXY},
+	{in: `"x:y"`, ptr: new(*unmarshalerText), out: &umtrueXY},
+	{in: `["x:y"]`, ptr: new([]unmarshalerText), out: umsliceXY},
+	{in: `["x:y"]`, ptr: new(*[]unmarshalerText), out: &umsliceXY},
+	{in: `{"M":"x:y"}`, ptr: new(ustructText), out: umstructXY},
 
 	// integer-keyed map test
 	{
@@ -579,15 +574,9 @@
 	},
 
 	// Map keys can be encoding.TextUnmarshalers.
-	{in: `{"x:y":true}`, ptr: &ummapType, out: ummapXY},
+	{in: `{"x:y":true}`, ptr: new(map[unmarshalerText]bool), out: ummapXY},
 	// If multiple values for the same key exists, only the most recent value is used.
-	{in: `{"x:y":false,"x:y":true}`, ptr: &ummapType, out: ummapXY},
-
-	// Overwriting of data.
-	// This is different from package xml, but it's what we've always done.
-	// Now documented and tested.
-	{in: `[2]`, ptr: sliceAddr([]int{1}), out: []int{2}},
-	{in: `{"key": 2}`, ptr: mapAddr(map[string]int{"old": 0, "key": 1}), out: map[string]int{"key": 2}},
+	{in: `{"x:y":false,"x:y":true}`, ptr: new(map[unmarshalerText]bool), out: ummapXY},
 
 	{
 		in: `{
@@ -672,6 +661,11 @@
 		err:                   fmt.Errorf("json: unknown field \"X\""),
 		disallowUnknownFields: true,
 	},
+	{
+		in:  `{"I": 0, "I": null, "J": null}`,
+		ptr: new(DoublePtr),
+		out: DoublePtr{I: nil, J: nil},
+	},
 
 	// invalid UTF-8 is coerced to valid UTF-8.
 	{
@@ -713,19 +707,19 @@
 	// Used to be issue 8305, but time.Time implements encoding.TextUnmarshaler so this works now.
 	{
 		in:  `{"2009-11-10T23:00:00Z": "hello world"}`,
-		ptr: &map[time.Time]string{},
+		ptr: new(map[time.Time]string),
 		out: map[time.Time]string{time.Date(2009, 11, 10, 23, 0, 0, 0, time.UTC): "hello world"},
 	},
 
 	// issue 8305
 	{
 		in:  `{"2009-11-10T23:00:00Z": "hello world"}`,
-		ptr: &map[Point]string{},
+		ptr: new(map[Point]string),
 		err: &UnmarshalTypeError{Value: "object", Type: reflect.TypeOf(map[Point]string{}), Offset: 1},
 	},
 	{
 		in:  `{"asdf": "hello world"}`,
-		ptr: &map[unmarshaler]string{},
+		ptr: new(map[unmarshaler]string),
 		err: &UnmarshalTypeError{Value: "object", Type: reflect.TypeOf(map[unmarshaler]string{}), Offset: 1},
 	},
 
@@ -955,6 +949,37 @@
 			Offset: 29,
 		},
 	},
+	// #14702
+	{
+		in:  `invalid`,
+		ptr: new(Number),
+		err: &SyntaxError{
+			msg:    "invalid character 'i' looking for beginning of value",
+			Offset: 1,
+		},
+	},
+	{
+		in:  `"invalid"`,
+		ptr: new(Number),
+		err: fmt.Errorf("json: invalid number literal, trying to unmarshal %q into Number", `"invalid"`),
+	},
+	{
+		in:  `{"A":"invalid"}`,
+		ptr: new(struct{ A Number }),
+		err: fmt.Errorf("json: invalid number literal, trying to unmarshal %q into Number", `"invalid"`),
+	},
+	{
+		in: `{"A":"invalid"}`,
+		ptr: new(struct {
+			A Number `json:",string"`
+		}),
+		err: fmt.Errorf("json: invalid use of ,string struct tag, trying to unmarshal %q into json.Number", `invalid`),
+	},
+	{
+		in:  `{"A":"invalid"}`,
+		ptr: new(map[string]Number),
+		err: fmt.Errorf("json: invalid number literal, trying to unmarshal %q into Number", `"invalid"`),
+	},
 }
 
 func TestMarshal(t *testing.T) {
@@ -1077,8 +1102,27 @@
 			continue
 		}
 
+		typ := reflect.TypeOf(tt.ptr)
+		if typ.Kind() != reflect.Ptr {
+			t.Errorf("#%d: unmarshalTest.ptr %T is not a pointer type", i, tt.ptr)
+			continue
+		}
+		typ = typ.Elem()
+
 		// v = new(right-type)
-		v := reflect.New(reflect.TypeOf(tt.ptr).Elem())
+		v := reflect.New(typ)
+
+		if !reflect.DeepEqual(tt.ptr, v.Interface()) {
+			// There's no reason for ptr to point to non-zero data,
+			// as we decode into new(right-type), so the data is
+			// discarded.
+			// This can easily mean tests that silently don't test
+			// what they should. To test decoding into existing
+			// data, see TestPrefilled.
+			t.Errorf("#%d: unmarshalTest.ptr %#v is not a pointer to a zero value", i, tt.ptr)
+			continue
+		}
+
 		dec := NewDecoder(bytes.NewReader(in))
 		if tt.useNumber {
 			dec.UseNumber()
@@ -1741,41 +1785,6 @@
 	Struct struct{}
 }
 
-type NullTestStrings struct {
-	Bool      bool              `json:",string"`
-	Int       int               `json:",string"`
-	Int8      int8              `json:",string"`
-	Int16     int16             `json:",string"`
-	Int32     int32             `json:",string"`
-	Int64     int64             `json:",string"`
-	Uint      uint              `json:",string"`
-	Uint8     uint8             `json:",string"`
-	Uint16    uint16            `json:",string"`
-	Uint32    uint32            `json:",string"`
-	Uint64    uint64            `json:",string"`
-	Float32   float32           `json:",string"`
-	Float64   float64           `json:",string"`
-	String    string            `json:",string"`
-	PBool     *bool             `json:",string"`
-	Map       map[string]string `json:",string"`
-	Slice     []string          `json:",string"`
-	Interface interface{}       `json:",string"`
-
-	PRaw    *RawMessage           `json:",string"`
-	PTime   *time.Time            `json:",string"`
-	PBigInt *big.Int              `json:",string"`
-	PText   *MustNotUnmarshalText `json:",string"`
-	PBuffer *bytes.Buffer         `json:",string"`
-	PStruct *struct{}             `json:",string"`
-
-	Raw    RawMessage           `json:",string"`
-	Time   time.Time            `json:",string"`
-	BigInt big.Int              `json:",string"`
-	Text   MustNotUnmarshalText `json:",string"`
-	Buffer bytes.Buffer         `json:",string"`
-	Struct struct{}             `json:",string"`
-}
-
 // JSON null values should be ignored for primitives and string values instead of resulting in an error.
 // Issue 2540
 func TestUnmarshalNulls(t *testing.T) {
@@ -2086,11 +2095,10 @@
 	}
 }
 
-// Test semantics of pre-filled struct fields and pre-filled map fields.
-// Issue 4900.
+// Test semantics of pre-filled data, such as struct fields, map elements,
+// slices, and arrays.
+// Issues 4900 and 8837, among others.
 func TestPrefilled(t *testing.T) {
-	ptrToMap := func(m map[string]interface{}) *map[string]interface{} { return &m }
-
 	// Values here change, cannot reuse table across runs.
 	var prefillTests = []struct {
 		in  string
@@ -2104,8 +2112,28 @@
 		},
 		{
 			in:  `{"X": 1, "Y": 2}`,
-			ptr: ptrToMap(map[string]interface{}{"X": float32(3), "Y": int16(4), "Z": 1.5}),
-			out: ptrToMap(map[string]interface{}{"X": float64(1), "Y": float64(2), "Z": 1.5}),
+			ptr: &map[string]interface{}{"X": float32(3), "Y": int16(4), "Z": 1.5},
+			out: &map[string]interface{}{"X": float64(1), "Y": float64(2), "Z": 1.5},
+		},
+		{
+			in:  `[2]`,
+			ptr: &[]int{1},
+			out: &[]int{2},
+		},
+		{
+			in:  `[2, 3]`,
+			ptr: &[]int{1},
+			out: &[]int{2, 3},
+		},
+		{
+			in:  `[2, 3]`,
+			ptr: &[...]int{1},
+			out: &[...]int{2},
+		},
+		{
+			in:  `[3]`,
+			ptr: &[...]int{1, 2},
+			out: &[...]int{3, 0},
 		},
 	}
 
@@ -2323,6 +2351,41 @@
 	}
 }
 
+func TestUnmarshalErrorAfterMultipleJSON(t *testing.T) {
+	tests := []struct {
+		in  string
+		err error
+	}{{
+		in:  `1 false null :`,
+		err: &SyntaxError{"invalid character ':' looking for beginning of value", 14},
+	}, {
+		in:  `1 [] [,]`,
+		err: &SyntaxError{"invalid character ',' looking for beginning of value", 7},
+	}, {
+		in:  `1 [] [true:]`,
+		err: &SyntaxError{"invalid character ':' after array element", 11},
+	}, {
+		in:  `1  {}    {"x"=}`,
+		err: &SyntaxError{"invalid character '=' after object key", 14},
+	}, {
+		in:  `falsetruenul#`,
+		err: &SyntaxError{"invalid character '#' in literal null (expecting 'l')", 13},
+	}}
+	for i, tt := range tests {
+		dec := NewDecoder(strings.NewReader(tt.in))
+		var err error
+		for {
+			var v interface{}
+			if err = dec.Decode(&v); err != nil {
+				break
+			}
+		}
+		if !reflect.DeepEqual(err, tt.err) {
+			t.Errorf("#%d: got %#v, want %#v", i, err, tt.err)
+		}
+	}
+}
+
 type unmarshalPanic struct{}
 
 func (unmarshalPanic) UnmarshalJSON([]byte) error { panic(0xdead) }
@@ -2348,3 +2411,23 @@
 		t.Fatal(err)
 	}
 }
+
+type textUnmarshalerString string
+
+func (m *textUnmarshalerString) UnmarshalText(text []byte) error {
+	*m = textUnmarshalerString(strings.ToLower(string(text)))
+	return nil
+}
+
+// Test unmarshal to a map, with map key is a user defined type.
+// See golang.org/issues/34437.
+func TestUnmarshalMapWithTextUnmarshalerStringKey(t *testing.T) {
+	var p map[textUnmarshalerString]string
+	if err := Unmarshal([]byte(`{"FOO": "1"}`), &p); err != nil {
+		t.Fatalf("Unmarshal unexpected error: %v", err)
+	}
+
+	if _, ok := p["foo"]; !ok {
+		t.Errorf(`Key "foo" is not existed in map: %v`, p)
+	}
+}
diff --git a/libgo/go/encoding/json/encode.go b/libgo/go/encoding/json/encode.go
index 6741276..39cdaeb 100644
--- a/libgo/go/encoding/json/encode.go
+++ b/libgo/go/encoding/json/encode.go
@@ -153,7 +153,7 @@
 //
 // JSON cannot represent cyclic data structures and Marshal does not
 // handle them. Passing cyclic structures to Marshal will result in
-// an infinite recursion.
+// an error.
 //
 func Marshal(v interface{}) ([]byte, error) {
 	e := newEncodeState()
@@ -164,7 +164,6 @@
 	}
 	buf := append([]byte(nil), e.Bytes()...)
 
-	e.Reset()
 	encodeStatePool.Put(e)
 
 	return buf, nil
@@ -262,14 +261,22 @@
 
 // A MarshalerError represents an error from calling a MarshalJSON or MarshalText method.
 type MarshalerError struct {
-	Type reflect.Type
-	Err  error
+	Type       reflect.Type
+	Err        error
+	sourceFunc string
 }
 
 func (e *MarshalerError) Error() string {
-	return "json: error calling MarshalJSON for type " + e.Type.String() + ": " + e.Err.Error()
+	srcFunc := e.sourceFunc
+	if srcFunc == "" {
+		srcFunc = "MarshalJSON"
+	}
+	return "json: error calling " + srcFunc +
+		" for type " + e.Type.String() +
+		": " + e.Err.Error()
 }
 
+// Unwrap returns the underlying error.
 func (e *MarshalerError) Unwrap() error { return e.Err }
 
 var hex = "0123456789abcdef"
@@ -278,17 +285,31 @@
 type encodeState struct {
 	bytes.Buffer // accumulated output
 	scratch      [64]byte
+
+	// Keep track of what pointers we've seen in the current recursive call
+	// path, to avoid cycles that could lead to a stack overflow. Only do
+	// the relatively expensive map operations if ptrLevel is larger than
+	// startDetectingCyclesAfter, so that we skip the work if we're within a
+	// reasonable amount of nested pointers deep.
+	ptrLevel uint
+	ptrSeen  map[interface{}]struct{}
 }
 
+const startDetectingCyclesAfter = 1000
+
 var encodeStatePool sync.Pool
 
 func newEncodeState() *encodeState {
 	if v := encodeStatePool.Get(); v != nil {
 		e := v.(*encodeState)
 		e.Reset()
+		if len(e.ptrSeen) > 0 {
+			panic("ptrEncoder.encode should have emptied ptrSeen via defers")
+		}
+		e.ptrLevel = 0
 		return e
 	}
-	return new(encodeState)
+	return &encodeState{ptrSeen: make(map[interface{}]struct{})}
 }
 
 // jsonError is an error wrapper type for internal use only.
@@ -392,19 +413,22 @@
 // newTypeEncoder constructs an encoderFunc for a type.
 // The returned encoder only checks CanAddr when allowAddr is true.
 func newTypeEncoder(t reflect.Type, allowAddr bool) encoderFunc {
-	if t.Implements(marshalerType) {
-		return marshalerEncoder
-	}
+	// If we have a non-pointer value whose type implements
+	// Marshaler with a value receiver, then we're better off taking
+	// the address of the value - otherwise we end up with an
+	// allocation as we cast the value to an interface.
 	if t.Kind() != reflect.Ptr && allowAddr && reflect.PtrTo(t).Implements(marshalerType) {
 		return newCondAddrEncoder(addrMarshalerEncoder, newTypeEncoder(t, false))
 	}
-
-	if t.Implements(textMarshalerType) {
-		return textMarshalerEncoder
+	if t.Implements(marshalerType) {
+		return marshalerEncoder
 	}
 	if t.Kind() != reflect.Ptr && allowAddr && reflect.PtrTo(t).Implements(textMarshalerType) {
 		return newCondAddrEncoder(addrTextMarshalerEncoder, newTypeEncoder(t, false))
 	}
+	if t.Implements(textMarshalerType) {
+		return textMarshalerEncoder
+	}
 
 	switch t.Kind() {
 	case reflect.Bool:
@@ -456,7 +480,7 @@
 		err = compact(&e.Buffer, b, opts.escapeHTML)
 	}
 	if err != nil {
-		e.error(&MarshalerError{v.Type(), err})
+		e.error(&MarshalerError{v.Type(), err, "MarshalJSON"})
 	}
 }
 
@@ -473,7 +497,7 @@
 		err = compact(&e.Buffer, b, opts.escapeHTML)
 	}
 	if err != nil {
-		e.error(&MarshalerError{v.Type(), err})
+		e.error(&MarshalerError{v.Type(), err, "MarshalJSON"})
 	}
 }
 
@@ -482,10 +506,14 @@
 		e.WriteString("null")
 		return
 	}
-	m := v.Interface().(encoding.TextMarshaler)
+	m, ok := v.Interface().(encoding.TextMarshaler)
+	if !ok {
+		e.WriteString("null")
+		return
+	}
 	b, err := m.MarshalText()
 	if err != nil {
-		e.error(&MarshalerError{v.Type(), err})
+		e.error(&MarshalerError{v.Type(), err, "MarshalText"})
 	}
 	e.stringBytes(b, opts.escapeHTML)
 }
@@ -499,7 +527,7 @@
 	m := va.Interface().(encoding.TextMarshaler)
 	b, err := m.MarshalText()
 	if err != nil {
-		e.error(&MarshalerError{v.Type(), err})
+		e.error(&MarshalerError{v.Type(), err, "MarshalText"})
 	}
 	e.stringBytes(b, opts.escapeHTML)
 }
@@ -597,20 +625,86 @@
 		if !isValidNumber(numStr) {
 			e.error(fmt.Errorf("json: invalid number literal %q", numStr))
 		}
+		if opts.quoted {
+			e.WriteByte('"')
+		}
 		e.WriteString(numStr)
+		if opts.quoted {
+			e.WriteByte('"')
+		}
 		return
 	}
 	if opts.quoted {
-		sb, err := Marshal(v.String())
-		if err != nil {
-			e.error(err)
-		}
-		e.string(string(sb), opts.escapeHTML)
+		b := make([]byte, 0, v.Len()+2)
+		b = append(b, '"')
+		b = append(b, []byte(v.String())...)
+		b = append(b, '"')
+		e.stringBytes(b, opts.escapeHTML)
 	} else {
 		e.string(v.String(), opts.escapeHTML)
 	}
 }
 
+// isValidNumber reports whether s is a valid JSON number literal.
+func isValidNumber(s string) bool {
+	// This function implements the JSON numbers grammar.
+	// See https://tools.ietf.org/html/rfc7159#section-6
+	// and https://json.org/number.gif
+
+	if s == "" {
+		return false
+	}
+
+	// Optional -
+	if s[0] == '-' {
+		s = s[1:]
+		if s == "" {
+			return false
+		}
+	}
+
+	// Digits
+	switch {
+	default:
+		return false
+
+	case s[0] == '0':
+		s = s[1:]
+
+	case '1' <= s[0] && s[0] <= '9':
+		s = s[1:]
+		for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+			s = s[1:]
+		}
+	}
+
+	// . followed by 1 or more digits.
+	if len(s) >= 2 && s[0] == '.' && '0' <= s[1] && s[1] <= '9' {
+		s = s[2:]
+		for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+			s = s[1:]
+		}
+	}
+
+	// e or E followed by an optional - or + and
+	// 1 or more digits.
+	if len(s) >= 2 && (s[0] == 'e' || s[0] == 'E') {
+		s = s[1:]
+		if s[0] == '+' || s[0] == '-' {
+			s = s[1:]
+			if s == "" {
+				return false
+			}
+		}
+		for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+			s = s[1:]
+		}
+	}
+
+	// Make sure we are at the end.
+	return s == ""
+}
+
 func interfaceEncoder(e *encodeState, v reflect.Value, opts encOpts) {
 	if v.IsNil() {
 		e.WriteString("null")
@@ -692,7 +786,7 @@
 	for i, v := range keys {
 		sv[i].v = v
 		if err := sv[i].resolve(); err != nil {
-			e.error(&MarshalerError{v.Type(), err})
+			e.error(fmt.Errorf("json: encoding error for type %q: %q", v.Type().String(), err.Error()))
 		}
 	}
 	sort.Slice(sv, func(i, j int) bool { return sv[i].s < sv[j].s })
@@ -807,7 +901,18 @@
 		e.WriteString("null")
 		return
 	}
+	if e.ptrLevel++; e.ptrLevel > startDetectingCyclesAfter {
+		// We're a large number of nested ptrEncoder.encode calls deep;
+		// start checking if we've run into a pointer cycle.
+		ptr := v.Interface()
+		if _, ok := e.ptrSeen[ptr]; ok {
+			e.error(&UnsupportedValueError{v, fmt.Sprintf("encountered a cycle via %s", v.Type())})
+		}
+		e.ptrSeen[ptr] = struct{}{}
+		defer delete(e.ptrSeen, ptr)
+	}
 	pe.elemEnc(e, v.Elem(), opts)
+	e.ptrLevel--
 }
 
 func newPtrEncoder(t reflect.Type) encoderFunc {
@@ -872,6 +977,9 @@
 		return nil
 	}
 	if tm, ok := w.v.Interface().(encoding.TextMarshaler); ok {
+		if w.v.Kind() == reflect.Ptr && w.v.IsNil() {
+			return nil
+		}
 		buf, err := tm.MarshalText()
 		w.s = string(buf)
 		return err
diff --git a/libgo/go/encoding/json/encode_test.go b/libgo/go/encoding/json/encode_test.go
index bdf2a9f..5110c7d 100644
--- a/libgo/go/encoding/json/encode_test.go
+++ b/libgo/go/encoding/json/encode_test.go
@@ -6,6 +6,7 @@
 
 import (
 	"bytes"
+	"encoding"
 	"fmt"
 	"log"
 	"math"
@@ -75,13 +76,15 @@
 	IntStr     int64   `json:",string"`
 	UintptrStr uintptr `json:",string"`
 	StrStr     string  `json:",string"`
+	NumberStr  Number  `json:",string"`
 }
 
 var stringTagExpected = `{
  "BoolStr": "true",
  "IntStr": "42",
  "UintptrStr": "44",
- "StrStr": "\"xzbit\""
+ "StrStr": "\"xzbit\"",
+ "NumberStr": "46"
 }`
 
 func TestStringTag(t *testing.T) {
@@ -90,6 +93,7 @@
 	s.IntStr = 42
 	s.UintptrStr = 44
 	s.StrStr = "xzbit"
+	s.NumberStr = "46"
 	got, err := MarshalIndent(&s, "", " ")
 	if err != nil {
 		t.Fatal(err)
@@ -134,10 +138,45 @@
 	}
 }
 
+type SamePointerNoCycle struct {
+	Ptr1, Ptr2 *SamePointerNoCycle
+}
+
+var samePointerNoCycle = &SamePointerNoCycle{}
+
+type PointerCycle struct {
+	Ptr *PointerCycle
+}
+
+var pointerCycle = &PointerCycle{}
+
+type PointerCycleIndirect struct {
+	Ptrs []interface{}
+}
+
+var pointerCycleIndirect = &PointerCycleIndirect{}
+
+func init() {
+	ptr := &SamePointerNoCycle{}
+	samePointerNoCycle.Ptr1 = ptr
+	samePointerNoCycle.Ptr2 = ptr
+
+	pointerCycle.Ptr = pointerCycle
+	pointerCycleIndirect.Ptrs = []interface{}{pointerCycleIndirect}
+}
+
+func TestSamePointerNoCycle(t *testing.T) {
+	if _, err := Marshal(samePointerNoCycle); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}
+
 var unsupportedValues = []interface{}{
 	math.NaN(),
 	math.Inf(-1),
 	math.Inf(1),
+	pointerCycle,
+	pointerCycleIndirect,
 }
 
 func TestUnsupportedValues(t *testing.T) {
@@ -453,18 +492,31 @@
 	BugB
 }
 
-// Issue 16042. Even if a nil interface value is passed in
-// as long as it implements MarshalJSON, it should be marshaled.
-type nilMarshaler string
+// golang.org/issue/16042.
+// Even if a nil interface value is passed in, as long as
+// it implements Marshaler, it should be marshaled.
+type nilJSONMarshaler string
 
-func (nm *nilMarshaler) MarshalJSON() ([]byte, error) {
+func (nm *nilJSONMarshaler) MarshalJSON() ([]byte, error) {
 	if nm == nil {
 		return Marshal("0zenil0")
 	}
 	return Marshal("zenil:" + string(*nm))
 }
 
-// Issue 16042.
+// golang.org/issue/34235.
+// Even if a nil interface value is passed in, as long as
+// it implements encoding.TextMarshaler, it should be marshaled.
+type nilTextMarshaler string
+
+func (nm *nilTextMarshaler) MarshalText() ([]byte, error) {
+	if nm == nil {
+		return []byte("0zenil0"), nil
+	}
+	return []byte("zenil:" + string(*nm)), nil
+}
+
+// See golang.org/issue/16042 and golang.org/issue/34235.
 func TestNilMarshal(t *testing.T) {
 	testCases := []struct {
 		v    interface{}
@@ -478,8 +530,11 @@
 		{v: []byte(nil), want: `null`},
 		{v: struct{ M string }{"gopher"}, want: `{"M":"gopher"}`},
 		{v: struct{ M Marshaler }{}, want: `{"M":null}`},
-		{v: struct{ M Marshaler }{(*nilMarshaler)(nil)}, want: `{"M":"0zenil0"}`},
-		{v: struct{ M interface{} }{(*nilMarshaler)(nil)}, want: `{"M":null}`},
+		{v: struct{ M Marshaler }{(*nilJSONMarshaler)(nil)}, want: `{"M":"0zenil0"}`},
+		{v: struct{ M interface{} }{(*nilJSONMarshaler)(nil)}, want: `{"M":null}`},
+		{v: struct{ M encoding.TextMarshaler }{}, want: `{"M":null}`},
+		{v: struct{ M encoding.TextMarshaler }{(*nilTextMarshaler)(nil)}, want: `{"M":"0zenil0"}`},
+		{v: struct{ M interface{} }{(*nilTextMarshaler)(nil)}, want: `{"M":null}`},
 	}
 
 	for _, tt := range testCases {
@@ -793,6 +848,21 @@
 	}
 }
 
+// https://golang.org/issue/33675
+func TestNilMarshalerTextMapKey(t *testing.T) {
+	b, err := Marshal(map[*unmarshalerText]int{
+		(*unmarshalerText)(nil): 1,
+		{"A", "B"}:              2,
+	})
+	if err != nil {
+		t.Fatalf("Failed to Marshal *text.Marshaler: %v", err)
+	}
+	const want = `{"":1,"A:B":2}`
+	if string(b) != want {
+		t.Errorf("Marshal map with *text.Marshaler keys: got %#q, want %#q", b, want)
+	}
+}
+
 var re = regexp.MustCompile
 
 // syntactic checks on form of marshaled floating point numbers.
@@ -1029,3 +1099,30 @@
 		t.Fatalf("Marshal: got %s want %s", got, want)
 	}
 }
+
+func TestMarshalerError(t *testing.T) {
+	s := "test variable"
+	st := reflect.TypeOf(s)
+	errText := "json: test error"
+
+	tests := []struct {
+		err  *MarshalerError
+		want string
+	}{
+		{
+			&MarshalerError{st, fmt.Errorf(errText), ""},
+			"json: error calling MarshalJSON for type " + st.String() + ": " + errText,
+		},
+		{
+			&MarshalerError{st, fmt.Errorf(errText), "TestMarshalerError"},
+			"json: error calling TestMarshalerError for type " + st.String() + ": " + errText,
+		},
+	}
+
+	for i, tt := range tests {
+		got := tt.err.Error()
+		if got != tt.want {
+			t.Errorf("MarshalerError test %d, got: %s, want: %s", i, got, tt.want)
+		}
+	}
+}
diff --git a/libgo/go/encoding/json/indent.go b/libgo/go/encoding/json/indent.go
index fba1954..2924d3b 100644
--- a/libgo/go/encoding/json/indent.go
+++ b/libgo/go/encoding/json/indent.go
@@ -4,7 +4,9 @@
 
 package json
 
-import "bytes"
+import (
+	"bytes"
+)
 
 // Compact appends to dst the JSON-encoded src with
 // insignificant space characters elided.
@@ -14,8 +16,8 @@
 
 func compact(dst *bytes.Buffer, src []byte, escape bool) error {
 	origLen := dst.Len()
-	var scan scanner
-	scan.reset()
+	scan := newScanner()
+	defer freeScanner(scan)
 	start := 0
 	for i, c := range src {
 		if escape && (c == '<' || c == '>' || c == '&') {
@@ -28,7 +30,7 @@
 			start = i + 1
 		}
 		// Convert U+2028 and U+2029 (E2 80 A8 and E2 80 A9).
-		if c == 0xE2 && i+2 < len(src) && src[i+1] == 0x80 && src[i+2]&^1 == 0xA8 {
+		if escape && c == 0xE2 && i+2 < len(src) && src[i+1] == 0x80 && src[i+2]&^1 == 0xA8 {
 			if start < i {
 				dst.Write(src[start:i])
 			}
@@ -36,7 +38,7 @@
 			dst.WriteByte(hex[src[i+2]&0xF])
 			start = i + 3
 		}
-		v := scan.step(&scan, c)
+		v := scan.step(scan, c)
 		if v >= scanSkipSpace {
 			if v == scanError {
 				break
@@ -78,13 +80,13 @@
 // if src ends in a trailing newline, so will dst.
 func Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error {
 	origLen := dst.Len()
-	var scan scanner
-	scan.reset()
+	scan := newScanner()
+	defer freeScanner(scan)
 	needIndent := false
 	depth := 0
 	for _, c := range src {
 		scan.bytes++
-		v := scan.step(&scan, c)
+		v := scan.step(scan, c)
 		if v == scanSkipSpace {
 			continue
 		}
diff --git a/libgo/go/encoding/json/scanner.go b/libgo/go/encoding/json/scanner.go
index 8857224..552bd70 100644
--- a/libgo/go/encoding/json/scanner.go
+++ b/libgo/go/encoding/json/scanner.go
@@ -13,11 +13,16 @@
 // This file starts with two simple examples using the scanner
 // before diving into the scanner itself.
 
-import "strconv"
+import (
+	"strconv"
+	"sync"
+)
 
 // Valid reports whether data is a valid JSON encoding.
 func Valid(data []byte) bool {
-	return checkValid(data, &scanner{}) == nil
+	scan := newScanner()
+	defer freeScanner(scan)
+	return checkValid(data, scan) == nil
 }
 
 // checkValid verifies that data is valid JSON-encoded data.
@@ -45,7 +50,7 @@
 func (e *SyntaxError) Error() string { return e.msg }
 
 // A scanner is a JSON scanning state machine.
-// Callers call scan.reset() and then pass bytes in one at a time
+// Callers call scan.reset and then pass bytes in one at a time
 // by calling scan.step(&scan, c) for each byte.
 // The return value, referred to as an opcode, tells the
 // caller about significant parsing events like beginning
@@ -72,10 +77,33 @@
 	// Error that happened, if any.
 	err error
 
-	// total bytes consumed, updated by decoder.Decode
+	// total bytes consumed, updated by decoder.Decode (and deliberately
+	// not set to zero by scan.reset)
 	bytes int64
 }
 
+var scannerPool = sync.Pool{
+	New: func() interface{} {
+		return &scanner{}
+	},
+}
+
+func newScanner() *scanner {
+	scan := scannerPool.Get().(*scanner)
+	// scan.reset by design doesn't set bytes to zero
+	scan.bytes = 0
+	scan.reset()
+	return scan
+}
+
+func freeScanner(scan *scanner) {
+	// Avoid hanging on to too much memory in extreme cases.
+	if len(scan.parseState) > 1024 {
+		scan.parseState = nil
+	}
+	scannerPool.Put(scan)
+}
+
 // These values are returned by the state transition functions
 // assigned to scanner.state and the method scanner.eof.
 // They give details about the current state of the scan that
diff --git a/libgo/go/encoding/json/scanner_test.go b/libgo/go/encoding/json/scanner_test.go
index 6cdbe7d..3737516 100644
--- a/libgo/go/encoding/json/scanner_test.go
+++ b/libgo/go/encoding/json/scanner_test.go
@@ -48,6 +48,7 @@
 	{`[1,2,3]`, "[\n\t1,\n\t2,\n\t3\n]"},
 	{`{"x":1}`, "{\n\t\"x\": 1\n}"},
 	{ex1, ex1i},
+	{"{\"\":\"<>&\u2028\u2029\"}", "{\n\t\"\": \"<>&\u2028\u2029\"\n}"}, // See golang.org/issue/34070
 }
 
 var ex1 = `[true,false,null,"x",1,1.5,0,-5e+2]`
@@ -89,8 +90,8 @@
 	tests := []struct {
 		in, compact string
 	}{
-		{"{\"\u2028\": 1}", `{"\u2028":1}`},
-		{"{\"\u2029\" :2}", `{"\u2029":2}`},
+		{"{\"\u2028\": 1}", "{\"\u2028\":1}"},
+		{"{\"\u2029\" :2}", "{\"\u2029\":2}"},
 	}
 	for _, tt := range tests {
 		var buf bytes.Buffer
diff --git a/libgo/go/encoding/json/stream.go b/libgo/go/encoding/json/stream.go
index e291274..81f404f 100644
--- a/libgo/go/encoding/json/stream.go
+++ b/libgo/go/encoding/json/stream.go
@@ -56,7 +56,7 @@
 	}
 
 	if !dec.tokenValueAllowed() {
-		return &SyntaxError{msg: "not at beginning of value", Offset: dec.offset()}
+		return &SyntaxError{msg: "not at beginning of value", Offset: dec.InputOffset()}
 	}
 
 	// Read whole value into buffer.
@@ -102,6 +102,10 @@
 			dec.scan.bytes++
 			switch dec.scan.step(&dec.scan, c) {
 			case scanEnd:
+				// scanEnd is delayed one byte so we decrement
+				// the scanner bytes count by 1 to ensure that
+				// this value is correct in the next call of Decode.
+				dec.scan.bytes--
 				break Input
 			case scanEndObject, scanEndArray:
 				// scanEnd is delayed one byte.
@@ -310,7 +314,7 @@
 			return err
 		}
 		if c != ',' {
-			return &SyntaxError{"expected comma after array element", dec.offset()}
+			return &SyntaxError{"expected comma after array element", dec.InputOffset()}
 		}
 		dec.scanp++
 		dec.tokenState = tokenArrayValue
@@ -320,7 +324,7 @@
 			return err
 		}
 		if c != ':' {
-			return &SyntaxError{"expected colon after object key", dec.offset()}
+			return &SyntaxError{"expected colon after object key", dec.InputOffset()}
 		}
 		dec.scanp++
 		dec.tokenState = tokenObjectValue
@@ -473,7 +477,7 @@
 	case tokenObjectComma:
 		context = " after object key:value pair"
 	}
-	return nil, &SyntaxError{"invalid character " + quoteChar(c) + context, dec.offset()}
+	return nil, &SyntaxError{"invalid character " + quoteChar(c) + context, dec.InputOffset()}
 }
 
 // More reports whether there is another element in the
@@ -502,6 +506,9 @@
 	}
 }
 
-func (dec *Decoder) offset() int64 {
+// InputOffset returns the input stream byte offset of the current decoder position.
+// The offset gives the location of the end of the most recently returned token
+// and the beginning of the next token.
+func (dec *Decoder) InputOffset() int64 {
 	return dec.scanned + int64(dec.scanp)
 }
diff --git a/libgo/go/encoding/json/stream_test.go b/libgo/go/encoding/json/stream_test.go
index e3317dd..ebb4f23 100644
--- a/libgo/go/encoding/json/stream_test.go
+++ b/libgo/go/encoding/json/stream_test.go
@@ -118,6 +118,11 @@
 		Ptr    strPtrMarshaler
 	}{`"<str>"`, `"<str>"`}
 
+	// https://golang.org/issue/34154
+	stringOption := struct {
+		Bar string `json:"bar,string"`
+	}{`<html>foobar</html>`}
+
 	for _, tt := range []struct {
 		name       string
 		v          interface{}
@@ -137,6 +142,11 @@
 			`{"NonPtr":"\u003cstr\u003e","Ptr":"\u003cstr\u003e"}`,
 			`{"NonPtr":"<str>","Ptr":"<str>"}`,
 		},
+		{
+			"stringOption", stringOption,
+			`{"bar":"\"\u003chtml\u003efoobar\u003c/html\u003e\""}`,
+			`{"bar":"\"<html>foobar</html>\""}`,
+		},
 	} {
 		var buf bytes.Buffer
 		enc := NewEncoder(&buf)
diff --git a/libgo/go/encoding/xml/marshal.go b/libgo/go/encoding/xml/marshal.go
index add5ece..e325f31 100644
--- a/libgo/go/encoding/xml/marshal.go
+++ b/libgo/go/encoding/xml/marshal.go
@@ -914,7 +914,7 @@
 			p.WriteString("-->")
 			continue
 
-		case fInnerXml:
+		case fInnerXML:
 			vf = indirect(vf)
 			iface := vf.Interface()
 			switch raw := iface.(type) {
diff --git a/libgo/go/encoding/xml/marshal_test.go b/libgo/go/encoding/xml/marshal_test.go
index a0ccf44..8473158 100644
--- a/libgo/go/encoding/xml/marshal_test.go
+++ b/libgo/go/encoding/xml/marshal_test.go
@@ -392,7 +392,6 @@
 
 type T1 struct{}
 type T2 struct{}
-type T3 struct{}
 
 type IndirComment struct {
 	T1      T1
diff --git a/libgo/go/encoding/xml/read.go b/libgo/go/encoding/xml/read.go
index 12102bc..10a60ee 100644
--- a/libgo/go/encoding/xml/read.go
+++ b/libgo/go/encoding/xml/read.go
@@ -491,7 +491,7 @@
 					saveAny = finfo.value(sv)
 				}
 
-			case fInnerXml:
+			case fInnerXML:
 				if !saveXML.IsValid() {
 					saveXML = finfo.value(sv)
 					if d.saved == nil {
diff --git a/libgo/go/encoding/xml/typeinfo.go b/libgo/go/encoding/xml/typeinfo.go
index 48de3d7..639952c 100644
--- a/libgo/go/encoding/xml/typeinfo.go
+++ b/libgo/go/encoding/xml/typeinfo.go
@@ -33,13 +33,13 @@
 	fAttr
 	fCDATA
 	fCharData
-	fInnerXml
+	fInnerXML
 	fComment
 	fAny
 
 	fOmitEmpty
 
-	fMode = fElement | fAttr | fCDATA | fCharData | fInnerXml | fComment | fAny
+	fMode = fElement | fAttr | fCDATA | fCharData | fInnerXML | fComment | fAny
 
 	xmlName = "XMLName"
 )
@@ -134,7 +134,7 @@
 			case "chardata":
 				finfo.flags |= fCharData
 			case "innerxml":
-				finfo.flags |= fInnerXml
+				finfo.flags |= fInnerXML
 			case "comment":
 				finfo.flags |= fComment
 			case "any":
@@ -149,7 +149,7 @@
 		switch mode := finfo.flags & fMode; mode {
 		case 0:
 			finfo.flags |= fElement
-		case fAttr, fCDATA, fCharData, fInnerXml, fComment, fAny, fAny | fAttr:
+		case fAttr, fCDATA, fCharData, fInnerXML, fComment, fAny, fAny | fAttr:
 			if f.Name == xmlName || tag != "" && mode != fAttr {
 				valid = false
 			}
diff --git a/libgo/go/encoding/xml/xml.go b/libgo/go/encoding/xml/xml.go
index ca05944..5e73dcf 100644
--- a/libgo/go/encoding/xml/xml.go
+++ b/libgo/go/encoding/xml/xml.go
@@ -286,7 +286,10 @@
 		t = d.nextToken
 		d.nextToken = nil
 	} else if t, err = d.rawToken(); err != nil {
-		if err == io.EOF && d.stk != nil && d.stk.kind != stkEOF {
+		switch {
+		case err == io.EOF && d.t != nil:
+			err = nil
+		case err == io.EOF && d.stk != nil && d.stk.kind != stkEOF:
 			err = d.syntaxError("unexpected EOF")
 		}
 		return t, err
diff --git a/libgo/go/encoding/xml/xml_test.go b/libgo/go/encoding/xml/xml_test.go
index ee4ffa2..efddca4 100644
--- a/libgo/go/encoding/xml/xml_test.go
+++ b/libgo/go/encoding/xml/xml_test.go
@@ -14,6 +14,51 @@
 	"unicode/utf8"
 )
 
+type toks struct {
+	earlyEOF bool
+	t        []Token
+}
+
+func (t *toks) Token() (Token, error) {
+	if len(t.t) == 0 {
+		return nil, io.EOF
+	}
+	var tok Token
+	tok, t.t = t.t[0], t.t[1:]
+	if t.earlyEOF && len(t.t) == 0 {
+		return tok, io.EOF
+	}
+	return tok, nil
+}
+
+func TestDecodeEOF(t *testing.T) {
+	start := StartElement{Name: Name{Local: "test"}}
+	t.Run("EarlyEOF", func(t *testing.T) {
+		d := NewTokenDecoder(&toks{earlyEOF: true, t: []Token{
+			start,
+			start.End(),
+		}})
+		err := d.Decode(&struct {
+			XMLName Name `xml:"test"`
+		}{})
+		if err != nil {
+			t.Error(err)
+		}
+	})
+	t.Run("LateEOF", func(t *testing.T) {
+		d := NewTokenDecoder(&toks{t: []Token{
+			start,
+			start.End(),
+		}})
+		err := d.Decode(&struct {
+			XMLName Name `xml:"test"`
+		}{})
+		if err != nil {
+			t.Error(err)
+		}
+	})
+}
+
 const testInput = `
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
diff --git a/libgo/go/errors/errors.go b/libgo/go/errors/errors.go
index 85d4260..d923ad4 100644
--- a/libgo/go/errors/errors.go
+++ b/libgo/go/errors/errors.go
@@ -13,16 +13,16 @@
 //
 // If e.Unwrap() returns a non-nil error w, then we say that e wraps w.
 //
+// Unwrap unpacks wrapped errors. If its argument's type has an
+// Unwrap method, it calls the method once. Otherwise, it returns nil.
+//
 // A simple way to create wrapped errors is to call fmt.Errorf and apply the %w verb
 // to the error argument:
 //
-//	fmt.Errorf("... %w ...", ..., err, ...).Unwrap()
+//	errors.Unwrap(fmt.Errorf("... %w ...", ..., err, ...))
 //
 // returns err.
 //
-// Unwrap unpacks wrapped errors. If its argument's type has an
-// Unwrap method, it calls the method once. Otherwise, it returns nil.
-//
 // Is unwraps its first argument sequentially looking for an error that matches the
 // second. It reports whether it finds a match. It should be used in preference to
 // simple equality checks:
diff --git a/libgo/go/errors/wrap.go b/libgo/go/errors/wrap.go
index 240da37..272d056 100644
--- a/libgo/go/errors/wrap.go
+++ b/libgo/go/errors/wrap.go
@@ -28,6 +28,14 @@
 //
 // An error is considered to match a target if it is equal to that target or if
 // it implements a method Is(error) bool such that Is(target) returns true.
+//
+// An error type might provide an Is method so it can be treated as equivalent
+// to an existing error. For example, if MyError defines
+//
+//	func (m MyError) Is(target error) bool { return target == os.ErrExist }
+//
+// then Is(MyError{}, os.ErrExist) returns true. See syscall.Errno.Is for
+// an example in the standard library.
 func Is(err, target error) bool {
 	if target == nil {
 		return err == target
@@ -41,7 +49,7 @@
 		if x, ok := err.(interface{ Is(error) bool }); ok && x.Is(target) {
 			return true
 		}
-		// TODO: consider supporing target.Is(err). This would allow
+		// TODO: consider supporting target.Is(err). This would allow
 		// user-definable predicates, but also may allow for coping with sloppy
 		// APIs, thereby making it easier to get away with them.
 		if err = Unwrap(err); err == nil {
@@ -51,7 +59,7 @@
 }
 
 // As finds the first error in err's chain that matches target, and if so, sets
-// target to that error value and returns true.
+// target to that error value and returns true. Otherwise, it returns false.
 //
 // The chain consists of err itself followed by the sequence of errors obtained by
 // repeatedly calling Unwrap.
@@ -61,8 +69,11 @@
 // As(target) returns true. In the latter case, the As method is responsible for
 // setting target.
 //
-// As will panic if target is not a non-nil pointer to either a type that implements
-// error, or to any interface type. As returns false if err is nil.
+// An error type might provide an As method so it can be treated as if it were a
+// a different error type.
+//
+// As panics if target is not a non-nil pointer to either a type that implements
+// error, or to any interface type.
 func As(err error, target interface{}) bool {
 	if target == nil {
 		panic("errors: target cannot be nil")
diff --git a/libgo/go/flag/flag.go b/libgo/go/flag/flag.go
index 9fed4d8..6a51617 100644
--- a/libgo/go/flag/flag.go
+++ b/libgo/go/flag/flag.go
@@ -314,6 +314,9 @@
 
 // A FlagSet represents a set of defined flags. The zero value of a FlagSet
 // has no name and has ContinueOnError error handling.
+//
+// Flag names must be unique within a FlagSet. An attempt to define a flag whose
+// name is already in use will cause a panic.
 type FlagSet struct {
 	// Usage is the function called when an error occurs while parsing flags.
 	// The field is a function (not a method) that may be changed to point to
diff --git a/libgo/go/fmt/errors_test.go b/libgo/go/fmt/errors_test.go
index 0c774bc..481a7b8 100644
--- a/libgo/go/fmt/errors_test.go
+++ b/libgo/go/fmt/errors_test.go
@@ -11,6 +11,10 @@
 )
 
 func TestErrorf(t *testing.T) {
+	// noVetErrorf is an alias for fmt.Errorf that does not trigger vet warnings for
+	// %w format strings.
+	noVetErrorf := fmt.Errorf
+
 	wrapped := errors.New("inner error")
 	for _, test := range []struct {
 		err        error
@@ -46,13 +50,13 @@
 		err:      fmt.Errorf("%v with added context", wrapped),
 		wantText: "inner error with added context",
 	}, {
-		err:      fmt.Errorf("%w is not an error", "not-an-error"),
+		err:      noVetErrorf("%w is not an error", "not-an-error"),
 		wantText: "%!w(string=not-an-error) is not an error",
 	}, {
-		err:      fmt.Errorf("wrapped two errors: %w %w", errString("1"), errString("2")),
+		err:      noVetErrorf("wrapped two errors: %w %w", errString("1"), errString("2")),
 		wantText: "wrapped two errors: 1 %!w(fmt_test.errString=2)",
 	}, {
-		err:      fmt.Errorf("wrapped three errors: %w %w %w", errString("1"), errString("2"), errString("3")),
+		err:      noVetErrorf("wrapped three errors: %w %w %w", errString("1"), errString("2"), errString("3")),
 		wantText: "wrapped three errors: 1 %!w(fmt_test.errString=2) %!w(fmt_test.errString=3)",
 	}, {
 		err:        fmt.Errorf("%w", nil),
diff --git a/libgo/go/fmt/scan.go b/libgo/go/fmt/scan.go
index 0dab2c9..8cab018 100644
--- a/libgo/go/fmt/scan.go
+++ b/libgo/go/fmt/scan.go
@@ -940,6 +940,15 @@
 	uintptrBits = 32 << (^uintptr(0) >> 63)
 )
 
+// scanPercent scans a literal percent character.
+func (s *ss) scanPercent() {
+	s.SkipSpace()
+	s.notEOF()
+	if !s.accept("%") {
+		s.errorString("missing literal %")
+	}
+}
+
 // scanOne scans a single value, deriving the scanner from the type of the argument.
 func (s *ss) scanOne(verb rune, arg interface{}) {
 	s.buf = s.buf[:0]
@@ -1203,6 +1212,10 @@
 		if c != 'c' {
 			s.SkipSpace()
 		}
+		if c == '%' {
+			s.scanPercent()
+			continue // Do not consume an argument.
+		}
 		s.argLimit = s.limit
 		if f := s.count + s.maxWid; f < s.argLimit {
 			s.argLimit = f
diff --git a/libgo/go/fmt/scan_test.go b/libgo/go/fmt/scan_test.go
index b14a6f5..1cc469c 100644
--- a/libgo/go/fmt/scan_test.go
+++ b/libgo/go/fmt/scan_test.go
@@ -318,13 +318,15 @@
 	{"%2s", "sssss", &xVal, Xs("ss")},
 
 	// Fixed bugs
-	{"%d\n", "27\n", &intVal, 27},      // ok
-	{"%d\n", "28 \n", &intVal, 28},     // was: "unexpected newline"
-	{"%v", "0", &intVal, 0},            // was: "EOF"; 0 was taken as base prefix and not counted.
-	{"%v", "0", &uintVal, uint(0)},     // was: "EOF"; 0 was taken as base prefix and not counted.
-	{"%c", " ", &uintVal, uint(' ')},   // %c must accept a blank.
-	{"%c", "\t", &uintVal, uint('\t')}, // %c must accept any space.
-	{"%c", "\n", &uintVal, uint('\n')}, // %c must accept any space.
+	{"%d\n", "27\n", &intVal, 27},         // ok
+	{"%d\n", "28 \n", &intVal, 28},        // was: "unexpected newline"
+	{"%v", "0", &intVal, 0},               // was: "EOF"; 0 was taken as base prefix and not counted.
+	{"%v", "0", &uintVal, uint(0)},        // was: "EOF"; 0 was taken as base prefix and not counted.
+	{"%c", " ", &uintVal, uint(' ')},      // %c must accept a blank.
+	{"%c", "\t", &uintVal, uint('\t')},    // %c must accept any space.
+	{"%c", "\n", &uintVal, uint('\n')},    // %c must accept any space.
+	{"%d%%", "23%\n", &uintVal, uint(23)}, // %% matches literal %.
+	{"%%%d", "%23\n", &uintVal, uint(23)}, // %% matches literal %.
 
 	// space handling
 	{"%d", "27", &intVal, 27},
@@ -467,6 +469,9 @@
 	{"X%d", "10X", args(&intVal), nil, "input does not match format"},
 	{"%d%", "42%", args(&intVal), args(42), "missing verb: % at end of format string"},
 	{"%d% ", "42%", args(&intVal), args(42), "too few operands for format '% '"}, // Slightly odd error, but correct.
+	{"%%%d", "xxx 42", args(&intVal), args(42), "missing literal %"},
+	{"%%%d", "x42", args(&intVal), args(42), "missing literal %"},
+	{"%%%d", "42", args(&intVal), args(42), "missing literal %"},
 
 	// Bad UTF-8: should see every byte.
 	{"%c%c%c", "\xc2X\xc2", args(&r1, &r2, &r3), args(utf8.RuneError, 'X', utf8.RuneError), ""},
diff --git a/libgo/go/go/ast/ast.go b/libgo/go/go/ast/ast.go
index d8f6f66..aca510f 100644
--- a/libgo/go/go/ast/ast.go
+++ b/libgo/go/go/ast/ast.go
@@ -292,7 +292,7 @@
 		Rbrack token.Pos // position of "]"
 	}
 
-	// An SliceExpr node represents an expression followed by slice indices.
+	// A SliceExpr node represents an expression followed by slice indices.
 	SliceExpr struct {
 		X      Expr      // expression
 		Lbrack token.Pos // position of "["
@@ -634,7 +634,7 @@
 	BlockStmt struct {
 		Lbrace token.Pos // position of "{"
 		List   []Stmt
-		Rbrace token.Pos // position of "}"
+		Rbrace token.Pos // position of "}", if any (may be absent due to syntax error)
 	}
 
 	// An IfStmt node represents an if statement.
@@ -662,7 +662,7 @@
 		Body   *BlockStmt // CaseClauses only
 	}
 
-	// An TypeSwitchStmt node represents a type switch statement.
+	// A TypeSwitchStmt node represents a type switch statement.
 	TypeSwitchStmt struct {
 		Switch token.Pos  // position of "switch" keyword
 		Init   Stmt       // initialization statement; or nil
@@ -678,7 +678,7 @@
 		Body  []Stmt    // statement list; or nil
 	}
 
-	// An SelectStmt node represents a select statement.
+	// A SelectStmt node represents a select statement.
 	SelectStmt struct {
 		Select token.Pos  // position of "select" keyword
 		Body   *BlockStmt // CommClauses only
@@ -757,7 +757,15 @@
 	}
 	return token.Pos(int(s.TokPos) + len(s.Tok.String()))
 }
-func (s *BlockStmt) End() token.Pos { return s.Rbrace + 1 }
+func (s *BlockStmt) End() token.Pos {
+	if s.Rbrace.IsValid() {
+		return s.Rbrace + 1
+	}
+	if n := len(s.List); n > 0 {
+		return s.List[n-1].End()
+	}
+	return s.Lbrace + 1
+}
 func (s *IfStmt) End() token.Pos {
 	if s.Else != nil {
 		return s.Else.End()
diff --git a/libgo/go/go/ast/filter.go b/libgo/go/go/ast/filter.go
index 32352cb..c398e6e 100644
--- a/libgo/go/go/ast/filter.go
+++ b/libgo/go/go/ast/filter.go
@@ -474,7 +474,9 @@
 			}
 		}
 	} else {
-		for _, f := range pkg.Files {
+		// Iterate over filenames for deterministic order.
+		for _, filename := range filenames {
+			f := pkg.Files[filename]
 			imports = append(imports, f.Imports...)
 		}
 	}
@@ -484,7 +486,8 @@
 	if mode&FilterUnassociatedComments == 0 {
 		comments = make([]*CommentGroup, ncomments)
 		i := 0
-		for _, f := range pkg.Files {
+		for _, filename := range filenames {
+			f := pkg.Files[filename]
 			i += copy(comments[i:], f.Comments)
 		}
 	}
diff --git a/libgo/go/go/ast/import.go b/libgo/go/go/ast/import.go
index be23c7f..7fdf137 100644
--- a/libgo/go/go/ast/import.go
+++ b/libgo/go/go/ast/import.go
@@ -30,7 +30,7 @@
 		i := 0
 		specs := d.Specs[:0]
 		for j, s := range d.Specs {
-			if j > i && fset.Position(s.Pos()).Line > 1+fset.Position(d.Specs[j-1].End()).Line {
+			if j > i && lineAt(fset, s.Pos()) > 1+lineAt(fset, d.Specs[j-1].End()) {
 				// j begins a new run. End this one.
 				specs = append(specs, sortSpecs(fset, f, d.Specs[i:j])...)
 				i = j
@@ -42,8 +42,8 @@
 		// Deduping can leave a blank line before the rparen; clean that up.
 		if len(d.Specs) > 0 {
 			lastSpec := d.Specs[len(d.Specs)-1]
-			lastLine := fset.Position(lastSpec.Pos()).Line
-			rParenLine := fset.Position(d.Rparen).Line
+			lastLine := lineAt(fset, lastSpec.Pos())
+			rParenLine := lineAt(fset, d.Rparen)
 			for rParenLine > lastLine+1 {
 				rParenLine--
 				fset.File(d.Rparen).MergeLine(rParenLine)
@@ -52,6 +52,10 @@
 	}
 }
 
+func lineAt(fset *token.FileSet, pos token.Pos) int {
+	return fset.PositionFor(pos, false).Line
+}
+
 func importPath(s Spec) string {
 	t, err := strconv.Unquote(s.(*ImportSpec).Path.Value)
 	if err == nil {
@@ -89,6 +93,11 @@
 	End   token.Pos
 }
 
+type cgPos struct {
+	left bool // true if comment is to the left of the spec, false otherwise.
+	cg   *CommentGroup
+}
+
 func sortSpecs(fset *token.FileSet, f *File, specs []Spec) []Spec {
 	// Can't short-circuit here even if specs are already sorted,
 	// since they might yet need deduplication.
@@ -104,39 +113,64 @@
 	}
 
 	// Identify comments in this range.
-	// Any comment from pos[0].Start to the final line counts.
-	lastLine := fset.Position(pos[len(pos)-1].End).Line
-	cstart := len(f.Comments)
-	cend := len(f.Comments)
+	begSpecs := pos[0].Start
+	endSpecs := pos[len(pos)-1].End
+	beg := fset.File(begSpecs).LineStart(lineAt(fset, begSpecs))
+	endLine := lineAt(fset, endSpecs)
+	endFile := fset.File(endSpecs)
+	var end token.Pos
+	if endLine == endFile.LineCount() {
+		end = endSpecs
+	} else {
+		end = endFile.LineStart(endLine + 1) // beginning of next line
+	}
+	first := len(f.Comments)
+	last := -1
 	for i, g := range f.Comments {
-		if g.Pos() < pos[0].Start {
-			continue
-		}
-		if i < cstart {
-			cstart = i
-		}
-		if fset.Position(g.End()).Line > lastLine {
-			cend = i
+		if g.End() >= end {
 			break
 		}
+		// g.End() < end
+		if beg <= g.Pos() {
+			// comment is within the range [beg, end[ of import declarations
+			if i < first {
+				first = i
+			}
+			if i > last {
+				last = i
+			}
+		}
 	}
-	comments := f.Comments[cstart:cend]
 
-	// Assign each comment to the import spec preceding it.
-	importComments := map[*ImportSpec][]*CommentGroup{}
+	var comments []*CommentGroup
+	if last >= 0 {
+		comments = f.Comments[first : last+1]
+	}
+
+	// Assign each comment to the import spec on the same line.
+	importComments := map[*ImportSpec][]cgPos{}
 	specIndex := 0
 	for _, g := range comments {
 		for specIndex+1 < len(specs) && pos[specIndex+1].Start <= g.Pos() {
 			specIndex++
 		}
+		var left bool
+		// A block comment can appear before the first import spec.
+		if specIndex == 0 && pos[specIndex].Start > g.Pos() {
+			left = true
+		} else if specIndex+1 < len(specs) && // Or it can appear on the left of an import spec.
+			lineAt(fset, pos[specIndex].Start)+1 == lineAt(fset, g.Pos()) {
+			specIndex++
+			left = true
+		}
 		s := specs[specIndex].(*ImportSpec)
-		importComments[s] = append(importComments[s], g)
+		importComments[s] = append(importComments[s], cgPos{left: left, cg: g})
 	}
 
 	// Sort the import specs by import path.
 	// Remove duplicates, when possible without data loss.
 	// Reassign the import paths to have the same position sequence.
-	// Reassign each comment to abut the end of its spec.
+	// Reassign each comment to the spec on the same line.
 	// Sort the comments by new position.
 	sort.Slice(specs, func(i, j int) bool {
 		ipath := importPath(specs[i])
@@ -160,7 +194,7 @@
 			deduped = append(deduped, s)
 		} else {
 			p := s.Pos()
-			fset.File(p).MergeLine(fset.Position(p).Line)
+			fset.File(p).MergeLine(lineAt(fset, p))
 		}
 	}
 	specs = deduped
@@ -174,8 +208,16 @@
 		s.Path.ValuePos = pos[i].Start
 		s.EndPos = pos[i].End
 		for _, g := range importComments[s] {
-			for _, c := range g.List {
-				c.Slash = pos[i].End
+			for _, c := range g.cg.List {
+				if g.left {
+					c.Slash = pos[i].Start - 1
+				} else {
+					// An import spec can have both block comment and a line comment
+					// to its right. In that case, both of them will have the same pos.
+					// But while formatting the AST, the line comment gets moved to
+					// after the block comment.
+					c.Slash = pos[i].End
+				}
 			}
 		}
 	}
diff --git a/libgo/go/go/ast/issues_test.go b/libgo/go/go/ast/issues_test.go
new file mode 100644
index 0000000..788c557
--- /dev/null
+++ b/libgo/go/go/ast/issues_test.go
@@ -0,0 +1,42 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package ast_test
+
+import (
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"testing"
+)
+
+func TestIssue33649(t *testing.T) {
+	for _, src := range []string{
+		`package p; func _()`,
+		`package p; func _() {`,
+		`package p; func _() { _ = 0`,
+		`package p; func _() { _ = 0 }`,
+	} {
+		fset := token.NewFileSet()
+		f, _ := parser.ParseFile(fset, "", src, parser.AllErrors)
+		if f == nil {
+			panic("invalid test setup: parser didn't return an AST")
+		}
+
+		// find corresponding token.File
+		var tf *token.File
+		fset.Iterate(func(f *token.File) bool {
+			tf = f
+			return true
+		})
+		tfEnd := tf.Base() + tf.Size()
+
+		fd := f.Decls[len(f.Decls)-1].(*ast.FuncDecl)
+		fdEnd := int(fd.End())
+
+		if fdEnd != tfEnd {
+			t.Errorf("%q: got fdEnd = %d; want %d (base = %d, size = %d)", src, fdEnd, tfEnd, tf.Base(), tf.Size())
+		}
+	}
+}
diff --git a/libgo/go/go/build/build.go b/libgo/go/go/build/build.go
index 021c6ec..e250ae7 100644
--- a/libgo/go/go/build/build.go
+++ b/libgo/go/go/build/build.go
@@ -31,10 +31,19 @@
 
 // A Context specifies the supporting context for a build.
 type Context struct {
-	GOARCH      string // target architecture
-	GOOS        string // target operating system
-	GOROOT      string // Go root
-	GOPATH      string // Go path
+	GOARCH string // target architecture
+	GOOS   string // target operating system
+	GOROOT string // Go root
+	GOPATH string // Go path
+
+	// Dir is the caller's working directory, or the empty string to use
+	// the current directory of the running process. In module mode, this is used
+	// to locate the main module.
+	//
+	// If Dir is non-empty, directories passed to Import and ImportDir must
+	// be absolute.
+	Dir string
+
 	CgoEnabled  bool   // whether cgo files are included
 	UseAllFiles bool   // use files regardless of +build lines, file names
 	Compiler    string // compiler to assume when computing target paths
@@ -594,13 +603,14 @@
 			return p, fmt.Errorf("import %q: cannot import absolute path", path)
 		}
 
-		gopath := ctxt.gopath() // needed by both importGo and below; avoid computing twice
-		if err := ctxt.importGo(p, path, srcDir, mode, gopath); err == nil {
+		if err := ctxt.importGo(p, path, srcDir, mode); err == nil {
 			goto Found
 		} else if err != errNoModules {
 			return p, err
 		}
 
+		gopath := ctxt.gopath() // needed twice below; avoid computing many times
+
 		// tried records the location of unsuccessful package lookups
 		var tried struct {
 			vendor []string
@@ -775,7 +785,7 @@
 	}
 
 	var badGoError error
-	var Sfiles []string // files with ".S" (capital S)
+	var Sfiles []string // files with ".S"(capital S)/.sx(capital s equivalent for case insensitive filesystems)
 	var firstFile, firstCommentFile string
 	imported := make(map[string][]token.Position)
 	testImported := make(map[string][]token.Position)
@@ -829,7 +839,7 @@
 		case ".s":
 			p.SFiles = append(p.SFiles, name)
 			continue
-		case ".S":
+		case ".S", ".sx":
 			Sfiles = append(Sfiles, name)
 			continue
 		case ".swig":
@@ -897,6 +907,11 @@
 		}
 
 		// Record imports and information about cgo.
+		type importPos struct {
+			path string
+			pos  token.Pos
+		}
+		var fileImports []importPos
 		isCgo := false
 		for _, decl := range pf.Decls {
 			d, ok := decl.(*ast.GenDecl)
@@ -913,13 +928,7 @@
 				if err != nil {
 					log.Panicf("%s: parser returned invalid quoted string: <%s>", filename, quoted)
 				}
-				if isXTest {
-					xTestImported[path] = append(xTestImported[path], fset.Position(spec.Pos()))
-				} else if isTest {
-					testImported[path] = append(testImported[path], fset.Position(spec.Pos()))
-				} else {
-					imported[path] = append(imported[path], fset.Position(spec.Pos()))
-				}
+				fileImports = append(fileImports, importPos{path, spec.Pos()})
 				if path == "C" {
 					if isTest {
 						badFile(fmt.Errorf("use of cgo in test %s not supported", filename))
@@ -938,26 +947,35 @@
 				}
 			}
 		}
-		if isCgo {
+
+		var fileList *[]string
+		var importMap map[string][]token.Position
+		switch {
+		case isCgo:
 			allTags["cgo"] = true
 			if ctxt.CgoEnabled {
-				p.CgoFiles = append(p.CgoFiles, name)
+				fileList = &p.CgoFiles
+				importMap = imported
 			} else {
-				p.IgnoredGoFiles = append(p.IgnoredGoFiles, name)
+				// Ignore imports from cgo files if cgo is disabled.
+				fileList = &p.IgnoredGoFiles
 			}
-		} else if isXTest {
-			p.XTestGoFiles = append(p.XTestGoFiles, name)
-		} else if isTest {
-			p.TestGoFiles = append(p.TestGoFiles, name)
-		} else {
-			p.GoFiles = append(p.GoFiles, name)
+		case isXTest:
+			fileList = &p.XTestGoFiles
+			importMap = xTestImported
+		case isTest:
+			fileList = &p.TestGoFiles
+			importMap = testImported
+		default:
+			fileList = &p.GoFiles
+			importMap = imported
 		}
-	}
-	if badGoError != nil {
-		return p, badGoError
-	}
-	if len(p.GoFiles)+len(p.CgoFiles)+len(p.TestGoFiles)+len(p.XTestGoFiles) == 0 {
-		return p, &NoGoError{p.Dir}
+		*fileList = append(*fileList, name)
+		if importMap != nil {
+			for _, imp := range fileImports {
+				importMap[imp.path] = append(importMap[imp.path], fset.Position(imp.pos))
+			}
+		}
 	}
 
 	for tag := range allTags {
@@ -969,7 +987,7 @@
 	p.TestImports, p.TestImportPos = cleanImports(testImported)
 	p.XTestImports, p.XTestImportPos = cleanImports(xTestImported)
 
-	// add the .S files only if we are using cgo
+	// add the .S/.sx files only if we are using cgo
 	// (which means gcc will compile them).
 	// The standard assemblers expect .s files.
 	if len(p.CgoFiles) > 0 {
@@ -977,13 +995,19 @@
 		sort.Strings(p.SFiles)
 	}
 
+	if badGoError != nil {
+		return p, badGoError
+	}
+	if len(p.GoFiles)+len(p.CgoFiles)+len(p.TestGoFiles)+len(p.XTestGoFiles) == 0 {
+		return p, &NoGoError{p.Dir}
+	}
 	return p, pkgerr
 }
 
 var errNoModules = errors.New("not using modules")
 
 // importGo checks whether it can use the go command to find the directory for path.
-// If using the go command is not appopriate, importGo returns errNoModules.
+// If using the go command is not appropriate, importGo returns errNoModules.
 // Otherwise, importGo tries using the go command and reports whether that succeeded.
 // Using the go command lets build.Import and build.Context.Import find code
 // in Go modules. In the long term we want tools to use go/packages (currently golang.org/x/tools/go/packages),
@@ -992,37 +1016,51 @@
 // about the requested package and all dependencies and then only reports about the requested package.
 // Then we reinvoke it for every dependency. But this is still better than not working at all.
 // See golang.org/issue/26504.
-func (ctxt *Context) importGo(p *Package, path, srcDir string, mode ImportMode, gopath []string) error {
+func (ctxt *Context) importGo(p *Package, path, srcDir string, mode ImportMode) error {
 	const debugImportGo = false
 
-	// To invoke the go command, we must know the source directory,
+	// To invoke the go command,
 	// we must not being doing special things like AllowBinary or IgnoreVendor,
 	// and all the file system callbacks must be nil (we're meant to use the local file system).
-	if srcDir == "" || mode&AllowBinary != 0 || mode&IgnoreVendor != 0 ||
+	if mode&AllowBinary != 0 || mode&IgnoreVendor != 0 ||
 		ctxt.JoinPath != nil || ctxt.SplitPathList != nil || ctxt.IsAbsPath != nil || ctxt.IsDir != nil || ctxt.HasSubdir != nil || ctxt.ReadDir != nil || ctxt.OpenFile != nil || !equal(ctxt.ReleaseTags, defaultReleaseTags) {
 		return errNoModules
 	}
 
-	// Find the absolute source directory. hasSubdir does not handle
-	// relative paths (and can't because the callbacks don't support this).
-	absSrcDir, err := filepath.Abs(srcDir)
-	if err != nil {
-		return errNoModules
-	}
-
-	// If modules are not enabled, then the in-process code works fine and we should keep using it.
-	switch os.Getenv("GO111MODULE") {
+	// Predict whether module aware mode is enabled by checking the value of
+	// GO111MODULE and looking for a go.mod file in the source directory or
+	// one of its parents. Running 'go env GOMOD' in the source directory would
+	// give a canonical answer, but we'd prefer not to execute another command.
+	go111Module := os.Getenv("GO111MODULE")
+	switch go111Module {
 	case "off":
 		return errNoModules
 	default: // "", "on", "auto", anything else
 		// Maybe use modules.
 	}
 
-	// If the source directory is in GOROOT, then the in-process code works fine
-	// and we should keep using it. Moreover, the 'go list' approach below doesn't
-	// take standard-library vendoring into account and will fail.
-	if _, ok := ctxt.hasSubdir(filepath.Join(ctxt.GOROOT, "src"), absSrcDir); ok {
-		return errNoModules
+	if srcDir != "" {
+		var absSrcDir string
+		if filepath.IsAbs(srcDir) {
+			absSrcDir = srcDir
+		} else if ctxt.Dir != "" {
+			return fmt.Errorf("go/build: Dir is non-empty, so relative srcDir is not allowed: %v", srcDir)
+		} else {
+			// Find the absolute source directory. hasSubdir does not handle
+			// relative paths (and can't because the callbacks don't support this).
+			var err error
+			absSrcDir, err = filepath.Abs(srcDir)
+			if err != nil {
+				return errNoModules
+			}
+		}
+
+		// If the source directory is in GOROOT, then the in-process code works fine
+		// and we should keep using it. Moreover, the 'go list' approach below doesn't
+		// take standard-library vendoring into account and will fail.
+		if _, ok := ctxt.hasSubdir(filepath.Join(ctxt.GOROOT, "src"), absSrcDir); ok {
+			return errNoModules
+		}
 	}
 
 	// For efficiency, if path is a standard library package, let the usual lookup code handle it.
@@ -1033,27 +1071,45 @@
 		}
 	}
 
-	// Look to see if there is a go.mod.
+	// Unless GO111MODULE=on, look to see if there is a go.mod.
 	// Since go1.13, it doesn't matter if we're inside GOPATH.
-	parent := absSrcDir
-	for {
-		info, err := os.Stat(filepath.Join(parent, "go.mod"))
-		if err == nil && !info.IsDir() {
-			break
+	if go111Module != "on" {
+		var (
+			parent string
+			err    error
+		)
+		if ctxt.Dir == "" {
+			parent, err = os.Getwd()
+			if err != nil {
+				// A nonexistent working directory can't be in a module.
+				return errNoModules
+			}
+		} else {
+			parent, err = filepath.Abs(ctxt.Dir)
+			if err != nil {
+				// If the caller passed a bogus Dir explicitly, that's materially
+				// different from not having modules enabled.
+				return err
+			}
 		}
-		d := filepath.Dir(parent)
-		if len(d) >= len(parent) {
-			return errNoModules // reached top of file system, no go.mod
+		for {
+			info, err := os.Stat(filepath.Join(parent, "go.mod"))
+			if err == nil && !info.IsDir() {
+				break
+			}
+			d := filepath.Dir(parent)
+			if len(d) >= len(parent) {
+				return errNoModules // reached top of file system, no go.mod
+			}
+			parent = d
 		}
-		parent = d
 	}
 
-	cmd := exec.Command("go", "list", "-compiler="+ctxt.Compiler, "-tags="+strings.Join(ctxt.BuildTags, ","), "-installsuffix="+ctxt.InstallSuffix, "-f={{.Dir}}\n{{.ImportPath}}\n{{.Root}}\n{{.Goroot}}\n", path)
+	cmd := exec.Command("go", "list", "-e", "-compiler="+ctxt.Compiler, "-tags="+strings.Join(ctxt.BuildTags, ","), "-installsuffix="+ctxt.InstallSuffix, "-f={{.Dir}}\n{{.ImportPath}}\n{{.Root}}\n{{.Goroot}}\n{{if .Error}}{{.Error}}{{end}}\n", "--", path)
 
-	// TODO(bcmills): This is wrong if srcDir is in a vendor directory, or if
-	// srcDir is in some module dependency of the main module. The main module
-	// chooses what the import paths mean: individual packages don't.
-	cmd.Dir = srcDir
+	if ctxt.Dir != "" {
+		cmd.Dir = ctxt.Dir
+	}
 
 	var stdout, stderr strings.Builder
 	cmd.Stdout = &stdout
@@ -1072,15 +1128,25 @@
 	)
 
 	if err := cmd.Run(); err != nil {
-		return fmt.Errorf("go/build: importGo %s: %v\n%s\n", path, err, stderr.String())
+		return fmt.Errorf("go/build: go list %s: %v\n%s\n", path, err, stderr.String())
 	}
 
-	f := strings.Split(stdout.String(), "\n")
-	if len(f) != 5 || f[4] != "" {
+	f := strings.SplitN(stdout.String(), "\n", 5)
+	if len(f) != 5 {
 		return fmt.Errorf("go/build: importGo %s: unexpected output:\n%s\n", path, stdout.String())
 	}
+	dir := f[0]
+	errStr := strings.TrimSpace(f[4])
+	if errStr != "" && p.Dir == "" {
+		// If 'go list' could not locate the package, return the same error that
+		// 'go list' reported.
+		// If 'go list' did locate the package (p.Dir is not empty), ignore the
+		// error. It was probably related to loading source files, and we'll
+		// encounter it ourselves shortly.
+		return errors.New(errStr)
+	}
 
-	p.Dir = f[0]
+	p.Dir = dir
 	p.ImportPath = f[1]
 	p.Root = f[2]
 	p.Goroot = f[3] == "true"
@@ -1260,7 +1326,7 @@
 	}
 
 	switch ext {
-	case ".go", ".c", ".cc", ".cxx", ".cpp", ".m", ".s", ".h", ".hh", ".hpp", ".hxx", ".f", ".F", ".f90", ".S", ".swig", ".swigcxx":
+	case ".go", ".c", ".cc", ".cxx", ".cpp", ".m", ".s", ".h", ".hh", ".hpp", ".hxx", ".f", ".F", ".f90", ".S", ".sx", ".swig", ".swigcxx":
 		// tentatively okay - read to make sure
 	case ".syso":
 		// binary, no reading
@@ -1554,7 +1620,8 @@
 // The @ is for OS X. See golang.org/issue/13720.
 // The % is for Jenkins. See golang.org/issue/16959.
 // The ! is because module paths may use them. See golang.org/issue/26716.
-const safeString = "+-.,/0123456789=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz:$@%! "
+// The ~ and ^ are for sr.ht. See golang.org/issue/32260.
+const safeString = "+-.,/0123456789=ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz:$@%! ~^"
 
 func safeCgoName(s string) bool {
 	if s == "" {
diff --git a/libgo/go/go/build/build_test.go b/libgo/go/go/build/build_test.go
index f86e470..086a42e 100644
--- a/libgo/go/go/build/build_test.go
+++ b/libgo/go/go/build/build_test.go
@@ -7,6 +7,7 @@
 import (
 	"internal/testenv"
 	"io"
+	"io/ioutil"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -297,7 +298,7 @@
 		result                  bool
 	}{
 		{"-I${SRCDIR}/../include", "/projects/src/issue 11868", "-I/projects/src/issue 11868/../include", true},
-		{"-I${SRCDIR}", "wtf$@%", "-Iwtf$@%", true},
+		{"-I${SRCDIR}", "~wtf$@%^", "-I~wtf$@%^", true},
 		{"-X${SRCDIR}/1,${SRCDIR}/2", "/projects/src/issue 11868", "-X/projects/src/issue 11868/1,/projects/src/issue 11868/2", true},
 		{"-I/tmp -I/tmp", "/tmp2", "-I/tmp -I/tmp", true},
 		{"-I/tmp", "/tmp/[0]", "-I/tmp", true},
@@ -321,7 +322,15 @@
 func TestImportDirNotExist(t *testing.T) {
 	testenv.MustHaveGoBuild(t) // really must just have source
 	ctxt := Default
-	ctxt.GOPATH = ""
+
+	emptyDir, err := ioutil.TempDir("", t.Name())
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(emptyDir)
+
+	ctxt.GOPATH = emptyDir
+	ctxt.Dir = emptyDir
 
 	tests := []struct {
 		label        string
@@ -421,6 +430,47 @@
 	}
 }
 
+// Check that a package is loaded in module mode if GO111MODULE=on, even when
+// no go.mod file is present. It should fail to resolve packages outside std.
+// Verifies golang.org/issue/34669.
+func TestImportPackageOutsideModule(t *testing.T) {
+	testenv.MustHaveGoBuild(t)
+
+	// Disable module fetching for this test so that 'go list' fails quickly
+	// without trying to find the latest version of a module.
+	defer os.Setenv("GOPROXY", os.Getenv("GOPROXY"))
+	os.Setenv("GOPROXY", "off")
+
+	// Create a GOPATH in a temporary directory. We don't use testdata
+	// because it's in GOROOT, which interferes with the module heuristic.
+	gopath, err := ioutil.TempDir("", "gobuild-notmodule")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(gopath)
+	if err := os.MkdirAll(filepath.Join(gopath, "src/example.com/p"), 0777); err != nil {
+		t.Fatal(err)
+	}
+	if err := ioutil.WriteFile(filepath.Join(gopath, "src/example.com/p/p.go"), []byte("package p"), 0666); err != nil {
+		t.Fatal(err)
+	}
+
+	defer os.Setenv("GO111MODULE", os.Getenv("GO111MODULE"))
+	os.Setenv("GO111MODULE", "on")
+	defer os.Setenv("GOPATH", os.Getenv("GOPATH"))
+	os.Setenv("GOPATH", gopath)
+	ctxt := Default
+	ctxt.GOPATH = gopath
+	ctxt.Dir = filepath.Join(gopath, "src/example.com/p")
+
+	want := "cannot find module providing package"
+	if _, err := ctxt.Import("example.com/p", gopath, FindOnly); err == nil {
+		t.Fatal("importing package when no go.mod is present succeeded unexpectedly")
+	} else if errStr := err.Error(); !strings.Contains(errStr, want) {
+		t.Fatalf("error when importing package when no go.mod is present: got %q; want %q", errStr, want)
+	}
+}
+
 func TestImportDirTarget(t *testing.T) {
 	testenv.MustHaveGoBuild(t) // really must just have source
 	ctxt := Default
@@ -449,3 +499,56 @@
 		t.Fatalf("incorrectly set .Doc to %q", p.Doc)
 	}
 }
+
+// TestMissingImportErrorRepetition checks that when an unknown package is
+// imported, the package path is only shown once in the error.
+// Verifies golang.org/issue/34752.
+func TestMissingImportErrorRepetition(t *testing.T) {
+	testenv.MustHaveGoBuild(t) // need 'go list' internally
+	tmp, err := ioutil.TempDir("", "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmp)
+	if err := ioutil.WriteFile(filepath.Join(tmp, "go.mod"), []byte("module m"), 0666); err != nil {
+		t.Fatal(err)
+	}
+	defer os.Setenv("GO111MODULE", os.Getenv("GO111MODULE"))
+	os.Setenv("GO111MODULE", "on")
+	defer os.Setenv("GOPROXY", os.Getenv("GOPROXY"))
+	os.Setenv("GOPROXY", "off")
+	defer os.Setenv("GONOPROXY", os.Getenv("GONOPROXY"))
+	os.Setenv("GONOPROXY", "none")
+
+	ctxt := Default
+	ctxt.Dir = tmp
+
+	pkgPath := "example.com/hello"
+	_, err = ctxt.Import(pkgPath, tmp, FindOnly)
+	if err == nil {
+		t.Fatal("unexpected success")
+	}
+	// Don't count the package path with a URL like https://...?go-get=1.
+	// See golang.org/issue/35986.
+	errStr := strings.ReplaceAll(err.Error(), "://"+pkgPath+"?go-get=1", "://...?go-get=1")
+	if n := strings.Count(errStr, pkgPath); n != 1 {
+		t.Fatalf("package path %q appears in error %d times; should appear once\nerror: %v", pkgPath, n, err)
+	}
+}
+
+// TestCgoImportsIgnored checks that imports in cgo files are not included
+// in the imports list when cgo is disabled.
+// Verifies golang.org/issue/35946.
+func TestCgoImportsIgnored(t *testing.T) {
+	ctxt := Default
+	ctxt.CgoEnabled = false
+	p, err := ctxt.ImportDir("testdata/cgo_disabled", 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, path := range p.Imports {
+		if path == "should/be/ignored" {
+			t.Errorf("found import %q in ignored cgo file", path)
+		}
+	}
+}
diff --git a/libgo/go/go/build/deps_test.go b/libgo/go/go/build/deps_test.go
index fb86245..fd256ee 100644
--- a/libgo/go/go/build/deps_test.go
+++ b/libgo/go/go/build/deps_test.go
@@ -114,6 +114,7 @@
 	"hash/crc32":             {"L2", "hash"},
 	"hash/crc64":             {"L2", "hash"},
 	"hash/fnv":               {"L2", "hash"},
+	"hash/maphash":           {"L2", "hash"},
 	"image":                  {"L2", "image/color"}, // interfaces
 	"image/color":            {"L2"},                // interfaces
 	"image/color/palette":    {"L2", "image/color"},
@@ -150,7 +151,7 @@
 	"syscall/js":                        {"L0"},
 	"internal/oserror":                  {"L0"},
 	"internal/syscall/unix":             {"L0", "syscall"},
-	"internal/syscall/windows":          {"L0", "syscall", "internal/syscall/windows/sysdll"},
+	"internal/syscall/windows":          {"L0", "syscall", "internal/syscall/windows/sysdll", "unicode/utf16"},
 	"internal/syscall/windows/registry": {"L0", "syscall", "internal/syscall/windows/sysdll", "unicode/utf16"},
 	"time": {
 		// "L0" without the "io" package:
@@ -197,12 +198,13 @@
 	"runtime/trace":  {"L0", "context", "fmt"},
 	"text/tabwriter": {"L2"},
 
-	"testing":               {"L2", "flag", "fmt", "internal/race", "os", "runtime/debug", "runtime/pprof", "runtime/trace", "time"},
-	"testing/iotest":        {"L2", "log"},
-	"testing/quick":         {"L2", "flag", "fmt", "reflect", "time"},
-	"internal/testenv":      {"L2", "OS", "flag", "testing", "syscall", "internal/cfg"},
-	"internal/lazyregexp":   {"L2", "OS", "regexp"},
-	"internal/lazytemplate": {"L2", "OS", "text/template"},
+	"testing":                  {"L2", "flag", "fmt", "internal/race", "os", "runtime/debug", "runtime/pprof", "runtime/trace", "time"},
+	"testing/iotest":           {"L2", "log"},
+	"testing/quick":            {"L2", "flag", "fmt", "reflect", "time"},
+	"internal/obscuretestdata": {"L2", "OS", "encoding/base64"},
+	"internal/testenv":         {"L2", "OS", "flag", "testing", "syscall", "internal/cfg"},
+	"internal/lazyregexp":      {"L2", "OS", "regexp"},
+	"internal/lazytemplate":    {"L2", "OS", "text/template"},
 
 	// L4 is defined as L3+fmt+log+time, because in general once
 	// you're using L3 packages, use of fmt, log, or time is not a big deal.
@@ -250,7 +252,7 @@
 	"compress/gzip":                  {"L4", "compress/flate"},
 	"compress/lzw":                   {"L4"},
 	"compress/zlib":                  {"L4", "compress/flate"},
-	"context":                        {"errors", "internal/reflectlite", "sync", "time"},
+	"context":                        {"errors", "internal/reflectlite", "sync", "sync/atomic", "time"},
 	"database/sql":                   {"L4", "container/list", "context", "database/sql/driver", "database/sql/internal"},
 	"database/sql/driver":            {"L4", "context", "time", "database/sql/internal"},
 	"debug/dwarf":                    {"L4"},
@@ -512,7 +514,7 @@
 
 func TestDependencies(t *testing.T) {
 	iOS := runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64")
-	if runtime.GOOS == "nacl" || iOS {
+	if iOS {
 		// Tests run in a limited file system and we do not
 		// provide access to every source file.
 		t.Skipf("skipping on %s/%s, missing full GOROOT", runtime.GOOS, runtime.GOARCH)
diff --git a/libgo/go/go/build/doc.go b/libgo/go/go/build/doc.go
index de793ef..47dec5a 100644
--- a/libgo/go/go/build/doc.go
+++ b/libgo/go/go/build/doc.go
@@ -111,6 +111,7 @@
 //	- "go1.11", from Go version 1.11 onward
 //	- "go1.12", from Go version 1.12 onward
 //	- "go1.13", from Go version 1.13 onward
+//	- "go1.14", from Go version 1.14 onward
 //	- any additional words listed in ctxt.BuildTags
 //
 // There are no build tags for beta or minor releases.
diff --git a/libgo/go/go/build/syslist.go b/libgo/go/go/build/syslist.go
index 1af1ae8..d72649b 100644
--- a/libgo/go/go/build/syslist.go
+++ b/libgo/go/go/build/syslist.go
@@ -4,5 +4,8 @@
 
 package build
 
+// List of past, present, and future known GOOS and GOARCH values.
+// Do not remove from this list, as these are used for go/build filename matching.
+
 const goosList = "aix android darwin dragonfly freebsd hurd illumos js linux nacl netbsd openbsd plan9 solaris windows zos "
 const goarchList = "386 amd64 amd64p32 arm armbe arm64 arm64be ppc64 ppc64le mips mipsle mips64 mips64le mips64p32 mips64p32le ppc riscv riscv64 s390 s390x sparc sparc64 wasm alpha m68k nios2 sh shbe "
diff --git a/libgo/go/go/build/testdata/cgo_disabled/cgo_disabled.go b/libgo/go/go/build/testdata/cgo_disabled/cgo_disabled.go
new file mode 100644
index 0000000..d1edb99
--- /dev/null
+++ b/libgo/go/go/build/testdata/cgo_disabled/cgo_disabled.go
@@ -0,0 +1,5 @@
+package cgo_disabled
+
+import "C"
+
+import _ "should/be/ignored"
diff --git a/libgo/go/go/build/testdata/cgo_disabled/empty.go b/libgo/go/go/build/testdata/cgo_disabled/empty.go
new file mode 100644
index 0000000..63afe42
--- /dev/null
+++ b/libgo/go/go/build/testdata/cgo_disabled/empty.go
@@ -0,0 +1 @@
+package cgo_disabled
diff --git a/libgo/go/go/doc/comment.go b/libgo/go/go/doc/comment.go
index 88be45b..da33f21 100644
--- a/libgo/go/go/doc/comment.go
+++ b/libgo/go/go/doc/comment.go
@@ -300,6 +300,9 @@
 // in the words map, the link is taken from the map (if the corresponding map
 // value is the empty string, the URL is not converted into a link).
 //
+// A pair of (consecutive) backticks (`) is converted to a unicode left quote (“), and a pair of (consecutive)
+// single quotes (') is converted to a unicode right quote (”).
+//
 // Go identifiers that appear in the words map are italicized; if the corresponding
 // map value is not the empty string, it is considered a URL and the word is converted
 // into a link.
@@ -417,6 +420,9 @@
 // It wraps paragraphs of text to width or fewer Unicode code points
 // and then prefixes each line with the indent. In preformatted sections
 // (such as program text), it prefixes each non-blank line with preIndent.
+//
+// A pair of (consecutive) backticks (`) is converted to a unicode left quote (“), and a pair of (consecutive)
+// single quotes (') is converted to a unicode right quote (”).
 func ToText(w io.Writer, text string, indent, preIndent string, width int) {
 	l := lineWrapper{
 		out:    w,
diff --git a/libgo/go/go/doc/doc.go b/libgo/go/go/doc/doc.go
index d0d4d32..0e50af0 100644
--- a/libgo/go/go/doc/doc.go
+++ b/libgo/go/go/doc/doc.go
@@ -6,8 +6,10 @@
 package doc
 
 import (
+	"fmt"
 	"go/ast"
 	"go/token"
+	"strings"
 )
 
 // Package is the documentation for an entire package.
@@ -28,6 +30,11 @@
 	Types  []*Type
 	Vars   []*Value
 	Funcs  []*Func
+
+	// Examples is a sorted list of examples associated with
+	// the package. Examples are extracted from _test.go files
+	// provided to NewFromFiles.
+	Examples []*Example
 }
 
 // Value is the documentation for a (possibly grouped) var or const declaration.
@@ -50,6 +57,11 @@
 	Vars    []*Value // sorted list of variables of (mostly) this type
 	Funcs   []*Func  // sorted list of functions returning this type
 	Methods []*Func  // sorted list of methods (including embedded ones) of this type
+
+	// Examples is a sorted list of examples associated with
+	// this type. Examples are extracted from _test.go files
+	// provided to NewFromFiles.
+	Examples []*Example
 }
 
 // Func is the documentation for a func declaration.
@@ -63,6 +75,11 @@
 	Recv  string // actual   receiver "T" or "*T"
 	Orig  string // original receiver "T" or "*T"
 	Level int    // embedding level; 0 means not embedded
+
+	// Examples is a sorted list of examples associated with this
+	// function or method. Examples are extracted from _test.go files
+	// provided to NewFromFiles.
+	Examples []*Example
 }
 
 // A Note represents a marked comment starting with "MARKER(uid): note body".
@@ -75,7 +92,7 @@
 	Body     string    // note body text
 }
 
-// Mode values control the operation of New.
+// Mode values control the operation of New and NewFromFiles.
 type Mode int
 
 const (
@@ -95,6 +112,8 @@
 
 // New computes the package documentation for the given package AST.
 // New takes ownership of the AST pkg and may edit or overwrite it.
+// To have the Examples fields populated, use NewFromFiles and include
+// the package's _test.go files.
 //
 func New(pkg *ast.Package, importPath string, mode Mode) *Package {
 	var r reader
@@ -115,3 +134,86 @@
 		Funcs:      sortedFuncs(r.funcs, true),
 	}
 }
+
+// NewFromFiles computes documentation for a package.
+//
+// The package is specified by a list of *ast.Files and corresponding
+// file set, which must not be nil. NewFromFiles does not skip files
+// based on build constraints, so it is the caller's responsibility to
+// provide only the files that are matched by the build context.
+// The import path of the package is specified by importPath.
+//
+// Examples found in _test.go files are associated with the corresponding
+// type, function, method, or the package, based on their name.
+// If the example has a suffix in its name, it is set in the
+// Example.Suffix field. Examples with malformed names are skipped.
+//
+// Optionally, a single extra argument of type Mode can be provided to
+// control low-level aspects of the documentation extraction behavior.
+//
+// NewFromFiles takes ownership of the AST files and may edit them,
+// unless the PreserveAST Mode bit is on.
+//
+func NewFromFiles(fset *token.FileSet, files []*ast.File, importPath string, opts ...interface{}) (*Package, error) {
+	// Check for invalid API usage.
+	if fset == nil {
+		panic(fmt.Errorf("doc.NewFromFiles: no token.FileSet provided (fset == nil)"))
+	}
+	var mode Mode
+	switch len(opts) { // There can only be 0 or 1 options, so a simple switch works for now.
+	case 0:
+		// Nothing to do.
+	case 1:
+		m, ok := opts[0].(Mode)
+		if !ok {
+			panic(fmt.Errorf("doc.NewFromFiles: option argument type must be doc.Mode"))
+		}
+		mode = m
+	default:
+		panic(fmt.Errorf("doc.NewFromFiles: there must not be more than 1 option argument"))
+	}
+
+	// Collect .go and _test.go files.
+	var (
+		goFiles     = make(map[string]*ast.File)
+		testGoFiles []*ast.File
+	)
+	for i := range files {
+		f := fset.File(files[i].Pos())
+		if f == nil {
+			return nil, fmt.Errorf("file files[%d] is not found in the provided file set", i)
+		}
+		switch name := f.Name(); {
+		case strings.HasSuffix(name, ".go") && !strings.HasSuffix(name, "_test.go"):
+			goFiles[name] = files[i]
+		case strings.HasSuffix(name, "_test.go"):
+			testGoFiles = append(testGoFiles, files[i])
+		default:
+			return nil, fmt.Errorf("file files[%d] filename %q does not have a .go extension", i, name)
+		}
+	}
+
+	// TODO(dmitshur,gri): A relatively high level call to ast.NewPackage with a simpleImporter
+	// ast.Importer implementation is made below. It might be possible to short-circuit and simplify.
+
+	// Compute package documentation.
+	pkg, _ := ast.NewPackage(fset, goFiles, simpleImporter, nil) // Ignore errors that can happen due to unresolved identifiers.
+	p := New(pkg, importPath, mode)
+	classifyExamples(p, Examples(testGoFiles...))
+	return p, nil
+}
+
+// simpleImporter returns a (dummy) package object named by the last path
+// component of the provided package path (as is the convention for packages).
+// This is sufficient to resolve package identifiers without doing an actual
+// import. It never returns an error.
+func simpleImporter(imports map[string]*ast.Object, path string) (*ast.Object, error) {
+	pkg := imports[path]
+	if pkg == nil {
+		// note that strings.LastIndex returns -1 if there is no "/"
+		pkg = ast.NewObj(ast.Pkg, path[strings.LastIndex(path, "/")+1:])
+		pkg.Data = ast.NewScope(nil) // required by ast.NewPackage for dot-import
+		imports[path] = pkg
+	}
+	return pkg, nil
+}
diff --git a/libgo/go/go/doc/doc_test.go b/libgo/go/go/doc/doc_test.go
index 0b2d2b6..f1e612c 100644
--- a/libgo/go/go/doc/doc_test.go
+++ b/libgo/go/go/doc/doc_test.go
@@ -8,6 +8,7 @@
 	"bytes"
 	"flag"
 	"fmt"
+	"go/ast"
 	"go/parser"
 	"go/printer"
 	"go/token"
@@ -99,8 +100,16 @@
 
 	// test packages
 	for _, pkg := range pkgs {
-		importpath := dataDir + "/" + pkg.Name
-		doc := New(pkg, importpath, mode)
+		importPath := dataDir + "/" + pkg.Name
+		var files []*ast.File
+		for _, f := range pkg.Files {
+			files = append(files, f)
+		}
+		doc, err := NewFromFiles(fset, files, importPath, mode)
+		if err != nil {
+			t.Error(err)
+			continue
+		}
 
 		// golden files always use / in filenames - canonicalize them
 		for i, filename := range doc.Filenames {
diff --git a/libgo/go/go/doc/example.go b/libgo/go/go/doc/example.go
index 7d1a570..868db8a 100644
--- a/libgo/go/go/doc/example.go
+++ b/libgo/go/go/doc/example.go
@@ -18,9 +18,10 @@
 	"unicode/utf8"
 )
 
-// An Example represents an example function found in a source files.
+// An Example represents an example function found in a test source file.
 type Example struct {
-	Name        string // name of the item being exemplified
+	Name        string // name of the item being exemplified (including optional suffix)
+	Suffix      string // example suffix, without leading '_' (only populated by NewFromFiles)
 	Doc         string // example function doc string
 	Code        ast.Node
 	Play        *ast.File // a whole program version of the example
@@ -31,8 +32,10 @@
 	Order       int  // original source code order
 }
 
-// Examples returns the examples found in the files, sorted by Name field.
+// Examples returns the examples found in testFiles, sorted by Name field.
 // The Order fields record the order in which the examples were encountered.
+// The Suffix field is not populated when Examples is called directly, it is
+// only populated by NewFromFiles for examples it finds in _test.go files.
 //
 // Playable Examples must be in a package whose name ends in "_test".
 // An Example is "playable" (the Play field is non-nil) in either of these
@@ -44,9 +47,9 @@
 //     example function, zero test or benchmark functions, and at least one
 //     top-level function, type, variable, or constant declaration other
 //     than the example function.
-func Examples(files ...*ast.File) []*Example {
+func Examples(testFiles ...*ast.File) []*Example {
 	var list []*Example
-	for _, file := range files {
+	for _, file := range testFiles {
 		hasTests := false // file contains tests or benchmarks
 		numDecl := 0      // number of non-import declarations in the file
 		var flist []*Example
@@ -59,6 +62,9 @@
 			if !ok || f.Recv != nil {
 				continue
 			}
+			if params := f.Type.Params; params.List != nil {
+				continue // function has params; not a valid example
+			}
 			numDecl++
 			name := f.Name.Name
 			if isTest(name, "Test") || isTest(name, "Benchmark") {
@@ -441,3 +447,101 @@
 	}
 	return
 }
+
+// classifyExamples classifies examples and assigns them to the Examples field
+// of the relevant Func, Type, or Package that the example is associated with.
+//
+// The classification process is ambiguous in some cases:
+//
+// 	- ExampleFoo_Bar matches a type named Foo_Bar
+// 	  or a method named Foo.Bar.
+// 	- ExampleFoo_bar matches a type named Foo_bar
+// 	  or Foo (with a "bar" suffix).
+//
+// Examples with malformed names are not associated with anything.
+//
+func classifyExamples(p *Package, examples []*Example) {
+	if len(examples) == 0 {
+		return
+	}
+
+	// Mapping of names for funcs, types, and methods to the example listing.
+	ids := make(map[string]*[]*Example)
+	ids[""] = &p.Examples // package-level examples have an empty name
+	for _, f := range p.Funcs {
+		if !token.IsExported(f.Name) {
+			continue
+		}
+		ids[f.Name] = &f.Examples
+	}
+	for _, t := range p.Types {
+		if !token.IsExported(t.Name) {
+			continue
+		}
+		ids[t.Name] = &t.Examples
+		for _, f := range t.Funcs {
+			if !token.IsExported(f.Name) {
+				continue
+			}
+			ids[f.Name] = &f.Examples
+		}
+		for _, m := range t.Methods {
+			if !token.IsExported(m.Name) || m.Level != 0 { // avoid forwarded methods from embedding
+				continue
+			}
+			ids[strings.TrimPrefix(m.Recv, "*")+"_"+m.Name] = &m.Examples
+		}
+	}
+
+	// Group each example with the associated func, type, or method.
+	for _, ex := range examples {
+		// Consider all possible split points for the suffix
+		// by starting at the end of string (no suffix case),
+		// then trying all positions that contain a '_' character.
+		//
+		// An association is made on the first successful match.
+		// Examples with malformed names that match nothing are skipped.
+		for i := len(ex.Name); i >= 0; i = strings.LastIndexByte(ex.Name[:i], '_') {
+			prefix, suffix, ok := splitExampleName(ex.Name, i)
+			if !ok {
+				continue
+			}
+			exs, ok := ids[prefix]
+			if !ok {
+				continue
+			}
+			ex.Suffix = suffix
+			*exs = append(*exs, ex)
+			break
+		}
+	}
+
+	// Sort list of example according to the user-specified suffix name.
+	for _, exs := range ids {
+		sort.Slice((*exs), func(i, j int) bool {
+			return (*exs)[i].Suffix < (*exs)[j].Suffix
+		})
+	}
+}
+
+// splitExampleName attempts to split example name s at index i,
+// and reports if that produces a valid split. The suffix may be
+// absent. Otherwise, it must start with a lower-case letter and
+// be preceded by '_'.
+//
+// One of i == len(s) or s[i] == '_' must be true.
+func splitExampleName(s string, i int) (prefix, suffix string, ok bool) {
+	if i == len(s) {
+		return s, "", true
+	}
+	if i == len(s)-1 {
+		return "", "", false
+	}
+	prefix, suffix = s[:i], s[i+1:]
+	return prefix, suffix, isExampleSuffix(suffix)
+}
+
+func isExampleSuffix(s string) bool {
+	r, size := utf8.DecodeRuneInString(s)
+	return size > 0 && unicode.IsLower(r)
+}
diff --git a/libgo/go/go/doc/example_test.go b/libgo/go/go/doc/example_test.go
index 74fd106..cd2f469 100644
--- a/libgo/go/go/doc/example_test.go
+++ b/libgo/go/go/doc/example_test.go
@@ -6,11 +6,13 @@
 
 import (
 	"bytes"
+	"fmt"
 	"go/ast"
 	"go/doc"
 	"go/format"
 	"go/parser"
 	"go/token"
+	"reflect"
 	"strings"
 	"testing"
 )
@@ -458,3 +460,212 @@
 	}
 	return buf.String()
 }
+
+// This example illustrates how to use NewFromFiles
+// to compute package documentation with examples.
+func ExampleNewFromFiles() {
+	// src and test are two source files that make up
+	// a package whose documentation will be computed.
+	const src = `
+// This is the package comment.
+package p
+
+import "fmt"
+
+// This comment is associated with the Greet function.
+func Greet(who string) {
+	fmt.Printf("Hello, %s!\n", who)
+}
+`
+	const test = `
+package p_test
+
+// This comment is associated with the ExampleGreet_world example.
+func ExampleGreet_world() {
+	Greet("world")
+}
+`
+
+	// Create the AST by parsing src and test.
+	fset := token.NewFileSet()
+	files := []*ast.File{
+		mustParse(fset, "src.go", src),
+		mustParse(fset, "src_test.go", test),
+	}
+
+	// Compute package documentation with examples.
+	p, err := doc.NewFromFiles(fset, files, "example.com/p")
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("package %s - %s", p.Name, p.Doc)
+	fmt.Printf("func %s - %s", p.Funcs[0].Name, p.Funcs[0].Doc)
+	fmt.Printf(" ⤷ example with suffix %q - %s", p.Funcs[0].Examples[0].Suffix, p.Funcs[0].Examples[0].Doc)
+
+	// Output:
+	// package p - This is the package comment.
+	// func Greet - This comment is associated with the Greet function.
+	//  ⤷ example with suffix "world" - This comment is associated with the ExampleGreet_world example.
+}
+
+func TestClassifyExamples(t *testing.T) {
+	const src = `
+package p
+
+const Const1 = 0
+var   Var1   = 0
+
+type (
+	Type1     int
+	Type1_Foo int
+	Type1_foo int
+	type2     int
+
+	Embed struct { Type1 }
+)
+
+func Func1()     {}
+func Func1_Foo() {}
+func Func1_foo() {}
+func func2()     {}
+
+func (Type1) Func1() {}
+func (Type1) Func1_Foo() {}
+func (Type1) Func1_foo() {}
+func (Type1) func2() {}
+
+type (
+	Conflict          int
+	Conflict_Conflict int
+	Conflict_conflict int
+)
+
+func (Conflict) Conflict() {}
+`
+	const test = `
+package p_test
+
+func ExampleConst1() {} // invalid - no support for consts and vars
+func ExampleVar1()   {} // invalid - no support for consts and vars
+
+func Example()               {}
+func Example_()              {} // invalid - suffix must start with a lower-case letter
+func Example_suffix()        {}
+func Example_suffix_xX_X_x() {}
+func Example_世界()           {} // invalid - suffix must start with a lower-case letter
+func Example_123()           {} // invalid - suffix must start with a lower-case letter
+func Example_BadSuffix()     {} // invalid - suffix must start with a lower-case letter
+
+func ExampleType1()               {}
+func ExampleType1_()              {} // invalid - suffix must start with a lower-case letter
+func ExampleType1_suffix()        {}
+func ExampleType1_BadSuffix()     {} // invalid - suffix must start with a lower-case letter
+func ExampleType1_Foo()           {}
+func ExampleType1_Foo_suffix()    {}
+func ExampleType1_Foo_BadSuffix() {} // invalid - suffix must start with a lower-case letter
+func ExampleType1_foo()           {}
+func ExampleType1_foo_suffix()    {}
+func ExampleType1_foo_Suffix()    {} // matches Type1, instead of Type1_foo
+func Exampletype2()               {} // invalid - cannot match unexported
+
+func ExampleFunc1()               {}
+func ExampleFunc1_()              {} // invalid - suffix must start with a lower-case letter
+func ExampleFunc1_suffix()        {}
+func ExampleFunc1_BadSuffix()     {} // invalid - suffix must start with a lower-case letter
+func ExampleFunc1_Foo()           {}
+func ExampleFunc1_Foo_suffix()    {}
+func ExampleFunc1_Foo_BadSuffix() {} // invalid - suffix must start with a lower-case letter
+func ExampleFunc1_foo()           {}
+func ExampleFunc1_foo_suffix()    {}
+func ExampleFunc1_foo_Suffix()    {} // matches Func1, instead of Func1_foo
+func Examplefunc1()               {} // invalid - cannot match unexported
+
+func ExampleType1_Func1()               {}
+func ExampleType1_Func1_()              {} // invalid - suffix must start with a lower-case letter
+func ExampleType1_Func1_suffix()        {}
+func ExampleType1_Func1_BadSuffix()     {} // invalid - suffix must start with a lower-case letter
+func ExampleType1_Func1_Foo()           {}
+func ExampleType1_Func1_Foo_suffix()    {}
+func ExampleType1_Func1_Foo_BadSuffix() {} // invalid - suffix must start with a lower-case letter
+func ExampleType1_Func1_foo()           {}
+func ExampleType1_Func1_foo_suffix()    {}
+func ExampleType1_Func1_foo_Suffix()    {} // matches Type1.Func1, instead of Type1.Func1_foo
+func ExampleType1_func2()               {} // matches Type1, instead of Type1.func2
+
+func ExampleEmbed_Func1() {} // invalid - no support for forwarded methods from embedding
+
+func ExampleConflict_Conflict()        {} // ambiguous with either Conflict or Conflict_Conflict type
+func ExampleConflict_conflict()        {} // ambiguous with either Conflict or Conflict_conflict type
+func ExampleConflict_Conflict_suffix() {} // ambiguous with either Conflict or Conflict_Conflict type
+func ExampleConflict_conflict_suffix() {} // ambiguous with either Conflict or Conflict_conflict type
+`
+
+	// Parse literal source code as a *doc.Package.
+	fset := token.NewFileSet()
+	files := []*ast.File{
+		mustParse(fset, "src.go", src),
+		mustParse(fset, "src_test.go", test),
+	}
+	p, err := doc.NewFromFiles(fset, files, "example.com/p")
+	if err != nil {
+		t.Fatalf("doc.NewFromFiles: %v", err)
+	}
+
+	// Collect the association of examples to top-level identifiers.
+	got := map[string][]string{}
+	got[""] = exampleNames(p.Examples)
+	for _, f := range p.Funcs {
+		got[f.Name] = exampleNames(f.Examples)
+	}
+	for _, t := range p.Types {
+		got[t.Name] = exampleNames(t.Examples)
+		for _, f := range t.Funcs {
+			got[f.Name] = exampleNames(f.Examples)
+		}
+		for _, m := range t.Methods {
+			got[t.Name+"."+m.Name] = exampleNames(m.Examples)
+		}
+	}
+
+	want := map[string][]string{
+		"": {"", "suffix", "suffix_xX_X_x"}, // Package-level examples.
+
+		"Type1":     {"", "foo_Suffix", "func2", "suffix"},
+		"Type1_Foo": {"", "suffix"},
+		"Type1_foo": {"", "suffix"},
+
+		"Func1":     {"", "foo_Suffix", "suffix"},
+		"Func1_Foo": {"", "suffix"},
+		"Func1_foo": {"", "suffix"},
+
+		"Type1.Func1":     {"", "foo_Suffix", "suffix"},
+		"Type1.Func1_Foo": {"", "suffix"},
+		"Type1.Func1_foo": {"", "suffix"},
+
+		// These are implementation dependent due to the ambiguous parsing.
+		"Conflict_Conflict": {"", "suffix"},
+		"Conflict_conflict": {"", "suffix"},
+	}
+
+	for id := range got {
+		if !reflect.DeepEqual(got[id], want[id]) {
+			t.Errorf("classification mismatch for %q:\ngot  %q\nwant %q", id, got[id], want[id])
+		}
+	}
+}
+
+func exampleNames(exs []*doc.Example) (out []string) {
+	for _, ex := range exs {
+		out = append(out, ex.Suffix)
+	}
+	return out
+}
+
+func mustParse(fset *token.FileSet, filename, src string) *ast.File {
+	f, err := parser.ParseFile(fset, filename, src, parser.ParseComments)
+	if err != nil {
+		panic(err)
+	}
+	return f
+}
diff --git a/libgo/go/go/doc/testdata/bugpara.go b/libgo/go/go/doc/testdata/bugpara.go
index f5345a7..0360a6f 100644
--- a/libgo/go/go/doc/testdata/bugpara.go
+++ b/libgo/go/go/doc/testdata/bugpara.go
@@ -1,3 +1,7 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
 package bugpara
 
 // BUG(rsc): Sometimes bugs have multiple paragraphs.
diff --git a/libgo/go/go/doc/testdata/issue10858.0.golden b/libgo/go/go/doc/testdata/issue10858.0.golden
deleted file mode 100644
index 51f8f1e..0000000
--- a/libgo/go/go/doc/testdata/issue10858.0.golden
+++ /dev/null
@@ -1,79 +0,0 @@
-// 
-PACKAGE issue10858
-
-IMPORTPATH
-	testdata/issue10858
-
-IMPORTS
-	unsafe
-
-FILENAMES
-	testdata/issue10858.go
-
-CONSTANTS
-	// First line  Second line 
-	const (
-	
-		// C1 comment
-		C1	int	= 1 << 0
-	
-		C2	int	= 1 << 1
-	
-		// C3 comment
-		//
-		// with a line gap
-		C3	int	= 1 << 2
-	)
-
-
-TYPES
-	// StructTag is a comment  with 2 connecting lines 
-	type StructTag string	// adjacent comment
-
-	// Get returns the value associated with key in the tag string. 
-	func (tag StructTag) Get(key string) string
-
-	// First line  Second line 
-	type Type interface {
-		// Should be present
-	
-		// Align returns the alignment in bytes of a value of
-		// this type when allocated in memory.
-		Align() int
-	
-		// FieldAlign returns the alignment in bytes of a value of
-		// this type when used as a field in a struct.
-		FieldAlign() int	// adjacent comment
-	
-		//	Ptr: Elem
-		//	Slice: Elem
-	
-		// Bits returns the size of the type in bits.
-	
-		//
-		// It panics if the type's Kind is not one of the
-		// sized or unsized Int, Uint, Float, or Complex kinds.
-		Bits() int
-	}
-
-	// NewType is a comment  ending with this line. 
-	func NewType() Type
-
-	// TypeAlg is a copy of runtime.typeAlg 
-	type TypeAlg struct {
-		// function for hashing objects of this type
-		//
-		//
-		// (ptr to object, seed) -> hash
-		Hash	func(unsafe.Pointer, uintptr) uintptr
-	
-		// include
-		// include
-	
-		// include
-	
-		// function for comparing objects of this type
-		// (ptr to object A, ptr to object B) -> ==?
-		Equal	func(unsafe.Pointer, unsafe.Pointer) bool
-	}
-
diff --git a/libgo/go/go/doc/testdata/issue10858.1.golden b/libgo/go/go/doc/testdata/issue10858.1.golden
deleted file mode 100644
index 51f8f1e..0000000
--- a/libgo/go/go/doc/testdata/issue10858.1.golden
+++ /dev/null
@@ -1,79 +0,0 @@
-// 
-PACKAGE issue10858
-
-IMPORTPATH
-	testdata/issue10858
-
-IMPORTS
-	unsafe
-
-FILENAMES
-	testdata/issue10858.go
-
-CONSTANTS
-	// First line  Second line 
-	const (
-	
-		// C1 comment
-		C1	int	= 1 << 0
-	
-		C2	int	= 1 << 1
-	
-		// C3 comment
-		//
-		// with a line gap
-		C3	int	= 1 << 2
-	)
-
-
-TYPES
-	// StructTag is a comment  with 2 connecting lines 
-	type StructTag string	// adjacent comment
-
-	// Get returns the value associated with key in the tag string. 
-	func (tag StructTag) Get(key string) string
-
-	// First line  Second line 
-	type Type interface {
-		// Should be present
-	
-		// Align returns the alignment in bytes of a value of
-		// this type when allocated in memory.
-		Align() int
-	
-		// FieldAlign returns the alignment in bytes of a value of
-		// this type when used as a field in a struct.
-		FieldAlign() int	// adjacent comment
-	
-		//	Ptr: Elem
-		//	Slice: Elem
-	
-		// Bits returns the size of the type in bits.
-	
-		//
-		// It panics if the type's Kind is not one of the
-		// sized or unsized Int, Uint, Float, or Complex kinds.
-		Bits() int
-	}
-
-	// NewType is a comment  ending with this line. 
-	func NewType() Type
-
-	// TypeAlg is a copy of runtime.typeAlg 
-	type TypeAlg struct {
-		// function for hashing objects of this type
-		//
-		//
-		// (ptr to object, seed) -> hash
-		Hash	func(unsafe.Pointer, uintptr) uintptr
-	
-		// include
-		// include
-	
-		// include
-	
-		// function for comparing objects of this type
-		// (ptr to object A, ptr to object B) -> ==?
-		Equal	func(unsafe.Pointer, unsafe.Pointer) bool
-	}
-
diff --git a/libgo/go/go/doc/testdata/issue10858.2.golden b/libgo/go/go/doc/testdata/issue10858.2.golden
deleted file mode 100644
index 51f8f1e..0000000
--- a/libgo/go/go/doc/testdata/issue10858.2.golden
+++ /dev/null
@@ -1,79 +0,0 @@
-// 
-PACKAGE issue10858
-
-IMPORTPATH
-	testdata/issue10858
-
-IMPORTS
-	unsafe
-
-FILENAMES
-	testdata/issue10858.go
-
-CONSTANTS
-	// First line  Second line 
-	const (
-	
-		// C1 comment
-		C1	int	= 1 << 0
-	
-		C2	int	= 1 << 1
-	
-		// C3 comment
-		//
-		// with a line gap
-		C3	int	= 1 << 2
-	)
-
-
-TYPES
-	// StructTag is a comment  with 2 connecting lines 
-	type StructTag string	// adjacent comment
-
-	// Get returns the value associated with key in the tag string. 
-	func (tag StructTag) Get(key string) string
-
-	// First line  Second line 
-	type Type interface {
-		// Should be present
-	
-		// Align returns the alignment in bytes of a value of
-		// this type when allocated in memory.
-		Align() int
-	
-		// FieldAlign returns the alignment in bytes of a value of
-		// this type when used as a field in a struct.
-		FieldAlign() int	// adjacent comment
-	
-		//	Ptr: Elem
-		//	Slice: Elem
-	
-		// Bits returns the size of the type in bits.
-	
-		//
-		// It panics if the type's Kind is not one of the
-		// sized or unsized Int, Uint, Float, or Complex kinds.
-		Bits() int
-	}
-
-	// NewType is a comment  ending with this line. 
-	func NewType() Type
-
-	// TypeAlg is a copy of runtime.typeAlg 
-	type TypeAlg struct {
-		// function for hashing objects of this type
-		//
-		//
-		// (ptr to object, seed) -> hash
-		Hash	func(unsafe.Pointer, uintptr) uintptr
-	
-		// include
-		// include
-	
-		// include
-	
-		// function for comparing objects of this type
-		// (ptr to object A, ptr to object B) -> ==?
-		Equal	func(unsafe.Pointer, unsafe.Pointer) bool
-	}
-
diff --git a/libgo/go/go/internal/gccgoimporter/importer_test.go b/libgo/go/go/internal/gccgoimporter/importer_test.go
index 37250fd..a74a456 100644
--- a/libgo/go/go/internal/gccgoimporter/importer_test.go
+++ b/libgo/go/go/internal/gccgoimporter/importer_test.go
@@ -100,7 +100,7 @@
 }
 
 func TestGoxImporter(t *testing.T) {
-	testenv.MustHaveExec(t) // this is to skip nacl, js
+	testenv.MustHaveExec(t)
 	initmap := make(map[*types.Package]InitData)
 	imp := GetImporter([]string{"testdata"}, initmap)
 
diff --git a/libgo/go/go/internal/gccgoimporter/parser.go b/libgo/go/go/internal/gccgoimporter/parser.go
index c089b5e..9204b00 100644
--- a/libgo/go/go/internal/gccgoimporter/parser.go
+++ b/libgo/go/go/internal/gccgoimporter/parser.go
@@ -475,13 +475,11 @@
 // used to resolve pointers to named types in case they are referenced
 // by embedded fields.
 func (p *parser) update(t types.Type, nlist []interface{}) {
-	if len(nlist) != 0 {
-		if t == reserved {
-			p.errorf("internal error: update(%v) invoked on reserved", nlist)
-		}
-		if t == nil {
-			p.errorf("internal error: update(%v) invoked on nil", nlist)
-		}
+	if t == reserved {
+		p.errorf("internal error: update(%v) invoked on reserved", nlist)
+	}
+	if t == nil {
+		p.errorf("internal error: update(%v) invoked on nil", nlist)
 	}
 	for _, n := range nlist {
 		switch n := n.(type) {
diff --git a/libgo/go/go/internal/gcimporter/bimport.go b/libgo/go/go/internal/gcimporter/bimport.go
index cf03632..1019ccb 100644
--- a/libgo/go/go/internal/gcimporter/bimport.go
+++ b/libgo/go/go/internal/gcimporter/bimport.go
@@ -328,7 +328,7 @@
 	p.prevFile = file
 	p.prevLine = line
 
-	return p.fake.pos(file, line)
+	return p.fake.pos(file, line, 0)
 }
 
 // Synthesize a token.Pos
@@ -337,7 +337,9 @@
 	files map[string]*token.File
 }
 
-func (s *fakeFileSet) pos(file string, line int) token.Pos {
+func (s *fakeFileSet) pos(file string, line, column int) token.Pos {
+	// TODO(mdempsky): Make use of column.
+
 	// Since we don't know the set of needed file positions, we
 	// reserve maxlines positions per file.
 	const maxlines = 64 * 1024
diff --git a/libgo/go/go/internal/gcimporter/gcimporter_test.go b/libgo/go/go/internal/gcimporter/gcimporter_test.go
index 3b76368..df93f3f 100644
--- a/libgo/go/go/internal/gcimporter/gcimporter_test.go
+++ b/libgo/go/go/internal/gcimporter/gcimporter_test.go
@@ -26,10 +26,7 @@
 // import.
 func skipSpecialPlatforms(t *testing.T) {
 	switch platform := runtime.GOOS + "-" + runtime.GOARCH; platform {
-	case "nacl-amd64p32",
-		"nacl-386",
-		"nacl-arm",
-		"darwin-arm",
+	case "darwin-arm",
 		"darwin-arm64":
 		t.Skipf("no compiled packages available for import on %s", platform)
 	}
@@ -140,7 +137,7 @@
 }
 
 func TestVersionHandling(t *testing.T) {
-	skipSpecialPlatforms(t) // we really only need to exclude nacl platforms, but this is fine
+	skipSpecialPlatforms(t)
 
 	// This package only handles gc export data.
 	if runtime.Compiler != "gc" {
diff --git a/libgo/go/go/internal/gcimporter/iimport.go b/libgo/go/go/internal/gcimporter/iimport.go
index bf48064..c59dd16 100644
--- a/libgo/go/go/internal/gcimporter/iimport.go
+++ b/libgo/go/go/internal/gcimporter/iimport.go
@@ -61,8 +61,8 @@
 // If the export data version is not recognized or the format is otherwise
 // compromised, an error is returned.
 func iImportData(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string) (_ int, pkg *types.Package, err error) {
-	const currentVersion = 0
-	version := -1
+	const currentVersion = 1
+	version := int64(-1)
 	defer func() {
 		if e := recover(); e != nil {
 			if version > currentVersion {
@@ -75,9 +75,9 @@
 
 	r := &intReader{bytes.NewReader(data), path}
 
-	version = int(r.uint64())
+	version = int64(r.uint64())
 	switch version {
-	case currentVersion:
+	case currentVersion, 0:
 	default:
 		errorf("unknown iexport format version %d", version)
 	}
@@ -91,7 +91,8 @@
 	r.Seek(sLen+dLen, io.SeekCurrent)
 
 	p := iimporter{
-		ipath: path,
+		ipath:   path,
+		version: int(version),
 
 		stringData:  stringData,
 		stringCache: make(map[uint64]string),
@@ -169,7 +170,8 @@
 }
 
 type iimporter struct {
-	ipath string
+	ipath   string
+	version int
 
 	stringData  []byte
 	stringCache map[uint64]string
@@ -249,6 +251,7 @@
 	currPkg    *types.Package
 	prevFile   string
 	prevLine   int64
+	prevColumn int64
 }
 
 func (r *importReader) obj(name string) {
@@ -438,6 +441,19 @@
 }
 
 func (r *importReader) pos() token.Pos {
+	if r.p.version >= 1 {
+		r.posv1()
+	} else {
+		r.posv0()
+	}
+
+	if r.prevFile == "" && r.prevLine == 0 && r.prevColumn == 0 {
+		return token.NoPos
+	}
+	return r.p.fake.pos(r.prevFile, int(r.prevLine), int(r.prevColumn))
+}
+
+func (r *importReader) posv0() {
 	delta := r.int64()
 	if delta != deltaNewFile {
 		r.prevLine += delta
@@ -447,12 +463,18 @@
 		r.prevFile = r.string()
 		r.prevLine = l
 	}
+}
 
-	if r.prevFile == "" && r.prevLine == 0 {
-		return token.NoPos
+func (r *importReader) posv1() {
+	delta := r.int64()
+	r.prevColumn += delta >> 1
+	if delta&1 != 0 {
+		delta = r.int64()
+		r.prevLine += delta >> 1
+		if delta&1 != 0 {
+			r.prevFile = r.string()
+		}
 	}
-
-	return r.p.fake.pos(r.prevFile, int(r.prevLine))
 }
 
 func (r *importReader) typ() types.Type {
diff --git a/libgo/go/go/parser/interface.go b/libgo/go/go/parser/interface.go
index 9de160a..500c98d 100644
--- a/libgo/go/go/parser/interface.go
+++ b/libgo/go/go/parser/interface.go
@@ -75,7 +75,7 @@
 // indicates the specific failure. If the source was read but syntax
 // errors were found, the result is a partial AST (with ast.Bad* nodes
 // representing the fragments of erroneous source code). Multiple errors
-// are returned via a scanner.ErrorList which is sorted by file position.
+// are returned via a scanner.ErrorList which is sorted by source position.
 //
 func ParseFile(fset *token.FileSet, filename string, src interface{}, mode Mode) (f *ast.File, err error) {
 	if fset == nil {
@@ -173,7 +173,13 @@
 // be a valid Go (type or value) expression. Specifically, fset must not
 // be nil.
 //
-func ParseExprFrom(fset *token.FileSet, filename string, src interface{}, mode Mode) (ast.Expr, error) {
+// If the source couldn't be read, the returned AST is nil and the error
+// indicates the specific failure. If the source was read but syntax
+// errors were found, the result is a partial AST (with ast.Bad* nodes
+// representing the fragments of erroneous source code). Multiple errors
+// are returned via a scanner.ErrorList which is sorted by source position.
+//
+func ParseExprFrom(fset *token.FileSet, filename string, src interface{}, mode Mode) (expr ast.Expr, err error) {
 	if fset == nil {
 		panic("parser.ParseExprFrom: no token.FileSet provided (fset == nil)")
 	}
@@ -204,7 +210,7 @@
 	// in case of an erroneous x.
 	p.openScope()
 	p.pkgScope = p.topScope
-	e := p.parseRhsOrType()
+	expr = p.parseRhsOrType()
 	p.closeScope()
 	assert(p.topScope == nil, "unbalanced scopes")
 
@@ -215,18 +221,17 @@
 	}
 	p.expect(token.EOF)
 
-	if p.errors.Len() > 0 {
-		p.errors.Sort()
-		return nil, p.errors.Err()
-	}
-
-	return e, nil
+	return
 }
 
 // ParseExpr is a convenience function for obtaining the AST of an expression x.
 // The position information recorded in the AST is undefined. The filename used
 // in error messages is the empty string.
 //
+// If syntax errors were found, the result is a partial AST (with ast.Bad* nodes
+// representing the fragments of erroneous source code). Multiple errors are
+// returned via a scanner.ErrorList which is sorted by source position.
+//
 func ParseExpr(x string) (ast.Expr, error) {
 	return ParseExprFrom(token.NewFileSet(), "", []byte(x), 0)
 }
diff --git a/libgo/go/go/parser/parser.go b/libgo/go/go/parser/parser.go
index ba16b65..31a7398 100644
--- a/libgo/go/go/parser/parser.go
+++ b/libgo/go/go/parser/parser.go
@@ -397,6 +397,18 @@
 	return pos
 }
 
+// expect2 is like expect, but it returns an invalid position
+// if the expected token is not found.
+func (p *parser) expect2(tok token.Token) (pos token.Pos) {
+	if p.tok == tok {
+		pos = p.pos
+	} else {
+		p.errorExpected(p.pos, "'"+tok.String()+"'")
+	}
+	p.next() // make progress
+	return
+}
+
 // expectClosing is like expect but provides a better error message
 // for the common case of a missing comma before a newline.
 //
@@ -1082,7 +1094,7 @@
 	list := p.parseStmtList()
 	p.closeLabelScope()
 	p.closeScope()
-	rbrace := p.expect(token.RBRACE)
+	rbrace := p.expect2(token.RBRACE)
 
 	return &ast.BlockStmt{Lbrace: lbrace, List: list, Rbrace: rbrace}
 }
@@ -1096,7 +1108,7 @@
 	p.openScope()
 	list := p.parseStmtList()
 	p.closeScope()
-	rbrace := p.expect(token.RBRACE)
+	rbrace := p.expect2(token.RBRACE)
 
 	return &ast.BlockStmt{Lbrace: lbrace, List: list, Rbrace: rbrace}
 }
@@ -1446,7 +1458,6 @@
 	switch t := unparen(x).(type) {
 	case *ast.ParenExpr:
 		panic("unreachable")
-	case *ast.UnaryExpr:
 	case *ast.ArrayType:
 		if len, isEllipsis := t.Len.(*ast.Ellipsis); isEllipsis {
 			p.error(len.Pos(), "expected array length, found '...'")
@@ -2439,8 +2450,18 @@
 	var body *ast.BlockStmt
 	if p.tok == token.LBRACE {
 		body = p.parseBody(scope)
+		p.expectSemi()
+	} else if p.tok == token.SEMICOLON {
+		p.next()
+		if p.tok == token.LBRACE {
+			// opening { of function declaration on next line
+			p.error(p.pos, "unexpected semicolon or newline before {")
+			body = p.parseBody(scope)
+			p.expectSemi()
+		}
+	} else {
+		p.expectSemi()
 	}
-	p.expectSemi()
 
 	decl := &ast.FuncDecl{
 		Doc:  doc,
diff --git a/libgo/go/go/parser/parser_test.go b/libgo/go/go/parser/parser_test.go
index fb35a88..25a374e 100644
--- a/libgo/go/go/parser/parser_test.go
+++ b/libgo/go/go/parser/parser_test.go
@@ -42,6 +42,22 @@
 
 func dirFilter(f os.FileInfo) bool { return nameFilter(f.Name()) }
 
+func TestParseFile(t *testing.T) {
+	src := "package p\nvar _=s[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]"
+	_, err := ParseFile(token.NewFileSet(), "", src, 0)
+	if err == nil {
+		t.Errorf("ParseFile(%s) succeeded unexpectedly", src)
+	}
+}
+
+func TestParseExprFrom(t *testing.T) {
+	src := "s[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]+\ns[::]"
+	_, err := ParseExprFrom(token.NewFileSet(), "", src, 0)
+	if err == nil {
+		t.Errorf("ParseExprFrom(%s) succeeded unexpectedly", src)
+	}
+}
+
 func TestParseDir(t *testing.T) {
 	path := "."
 	pkgs, err := ParseDir(token.NewFileSet(), path, dirFilter, 0)
@@ -92,9 +108,16 @@
 
 	// an invalid expression
 	src = "a + *"
-	if _, err := ParseExpr(src); err == nil {
+	x, err = ParseExpr(src)
+	if err == nil {
 		t.Errorf("ParseExpr(%q): got no error", src)
 	}
+	if x == nil {
+		t.Errorf("ParseExpr(%q): got no (partial) result", src)
+	}
+	if _, ok := x.(*ast.BinaryExpr); !ok {
+		t.Errorf("ParseExpr(%q): got %T, want *ast.BinaryExpr", src, x)
+	}
 
 	// a valid expression followed by extra tokens is invalid
 	src = "a[i] := x"
diff --git a/libgo/go/go/printer/nodes.go b/libgo/go/go/printer/nodes.go
index fa7589e..e4cb58a 100644
--- a/libgo/go/go/printer/nodes.go
+++ b/libgo/go/go/printer/nodes.go
@@ -794,8 +794,11 @@
 		p.print(x)
 
 	case *ast.FuncLit:
-		p.expr(x.Type)
-		p.funcBody(p.distanceFrom(x.Type.Pos()), blank, x.Body)
+		p.print(x.Type.Pos(), token.FUNC)
+		// See the comment in funcDecl about how the header size is computed.
+		startCol := p.out.Column - len("func")
+		p.signature(x.Type.Params, x.Type.Results)
+		p.funcBody(p.distanceFrom(x.Type.Pos(), startCol), blank, x.Body)
 
 	case *ast.ParenExpr:
 		if _, hasParens := x.X.(*ast.ParenExpr); hasParens {
@@ -1237,10 +1240,12 @@
 			// lead to more nicely formatted code in general.
 			if p.indentList(s.Results) {
 				p.print(indent)
-				p.exprList(s.Pos(), s.Results, 1, noIndent, token.NoPos, false)
+				// Use NoPos so that a newline never goes before
+				// the results (see issue #32854).
+				p.exprList(token.NoPos, s.Results, 1, noIndent, token.NoPos, false)
 				p.print(unindent)
 			} else {
-				p.exprList(s.Pos(), s.Results, 1, 0, token.NoPos, false)
+				p.exprList(token.NoPos, s.Results, 1, 0, token.NoPos, false)
 			}
 		}
 
@@ -1687,14 +1692,12 @@
 	p.block(b, 1)
 }
 
-// distanceFrom returns the column difference between from and p.pos (the current
-// estimated position) if both are on the same line; if they are on different lines
-// (or unknown) the result is infinity.
-func (p *printer) distanceFrom(from token.Pos) int {
-	if from.IsValid() && p.pos.IsValid() {
-		if f := p.posFor(from); f.Line == p.pos.Line {
-			return p.pos.Column - f.Column
-		}
+// distanceFrom returns the column difference between p.out (the current output
+// position) and startOutCol. If the start position is on a different line from
+// the current position (or either is unknown), the result is infinity.
+func (p *printer) distanceFrom(startPos token.Pos, startOutCol int) int {
+	if startPos.IsValid() && p.pos.IsValid() && p.posFor(startPos).Line == p.pos.Line {
+		return p.out.Column - startOutCol
 	}
 	return infinity
 }
@@ -1702,13 +1705,17 @@
 func (p *printer) funcDecl(d *ast.FuncDecl) {
 	p.setComment(d.Doc)
 	p.print(d.Pos(), token.FUNC, blank)
+	// We have to save startCol only after emitting FUNC; otherwise it can be on a
+	// different line (all whitespace preceding the FUNC is emitted only when the
+	// FUNC is emitted).
+	startCol := p.out.Column - len("func ")
 	if d.Recv != nil {
 		p.parameters(d.Recv) // method: print receiver
 		p.print(blank)
 	}
 	p.expr(d.Name)
 	p.signature(d.Type.Params, d.Type.Results)
-	p.funcBody(p.distanceFrom(d.Pos()), vtab, d.Body)
+	p.funcBody(p.distanceFrom(d.Pos(), startCol), vtab, d.Body)
 }
 
 func (p *printer) decl(decl ast.Decl) {
diff --git a/libgo/go/go/printer/printer_test.go b/libgo/go/go/printer/printer_test.go
index a240bf4..8f9cd53 100644
--- a/libgo/go/go/printer/printer_test.go
+++ b/libgo/go/go/printer/printer_test.go
@@ -775,3 +775,34 @@
 		t.Errorf("got %q, want %q", noparen, original)
 	}
 }
+
+// Verify that we don't print a newline between "return" and its results, as
+// that would incorrectly cause a naked return.
+func TestIssue32854(t *testing.T) {
+	src := `package foo
+
+func f() {
+        return Composite{
+                call(),
+        }
+}`
+	fset := token.NewFileSet()
+	file, err := parser.ParseFile(fset, "", src, 0)
+	if err != nil {
+		panic(err)
+	}
+
+	// Replace the result with call(), which is on the next line.
+	fd := file.Decls[0].(*ast.FuncDecl)
+	ret := fd.Body.List[0].(*ast.ReturnStmt)
+	ret.Results[0] = ret.Results[0].(*ast.CompositeLit).Elts[0]
+
+	var buf bytes.Buffer
+	if err := Fprint(&buf, fset, ret); err != nil {
+		t.Fatal(err)
+	}
+	want := "return call()"
+	if got := buf.String(); got != want {
+		t.Fatalf("got %q, want %q", got, want)
+	}
+}
diff --git a/libgo/go/go/types/api.go b/libgo/go/go/types/api.go
index 1252aad..2a21ad0 100644
--- a/libgo/go/go/types/api.go
+++ b/libgo/go/go/types/api.go
@@ -259,9 +259,6 @@
 	Value constant.Value
 }
 
-// TODO(gri) Consider eliminating the IsVoid predicate. Instead, report
-// "void" values as regular values but with the empty tuple type.
-
 // IsVoid reports whether the corresponding expression
 // is a function call without results.
 func (tv TypeAndValue) IsVoid() bool {
@@ -374,3 +371,15 @@
 	f, _ := MissingMethod(V, T, true)
 	return f == nil
 }
+
+// Identical reports whether x and y are identical types.
+// Receivers of Signature types are ignored.
+func Identical(x, y Type) bool {
+	return (*Checker)(nil).identical(x, y)
+}
+
+// IdenticalIgnoreTags reports whether x and y are identical types if tags are ignored.
+// Receivers of Signature types are ignored.
+func IdenticalIgnoreTags(x, y Type) bool {
+	return (*Checker)(nil).identicalIgnoreTags(x, y)
+}
diff --git a/libgo/go/go/types/builtins.go b/libgo/go/go/types/builtins.go
index ece6d4f..af374b7 100644
--- a/libgo/go/go/types/builtins.go
+++ b/libgo/go/go/types/builtins.go
@@ -257,7 +257,7 @@
 		}
 
 		// both argument types must be identical
-		if !Identical(x.typ, y.typ) {
+		if !check.identical(x.typ, y.typ) {
 			check.invalidArg(x.pos(), "mismatched types %s and %s", x.typ, y.typ)
 			return
 		}
@@ -322,7 +322,7 @@
 			return
 		}
 
-		if !Identical(dst, src) {
+		if !check.identical(dst, src) {
 			check.invalidArg(x.pos(), "arguments to copy %s and %s have different element types %s and %s", x, &y, dst, src)
 			return
 		}
@@ -362,7 +362,7 @@
 		// convert or check untyped argument
 		if isUntyped(x.typ) {
 			if x.mode == constant_ {
-				// an untyped constant number can alway be considered
+				// an untyped constant number can always be considered
 				// as a complex constant
 				if isNumeric(x.typ) {
 					x.typ = Typ[UntypedComplex]
@@ -559,7 +559,7 @@
 
 		base := derefStructPtr(x.typ)
 		sel := selx.Sel.Name
-		obj, index, indirect := LookupFieldOrMethod(base, false, check.pkg, sel)
+		obj, index, indirect := check.LookupFieldOrMethod(base, false, check.pkg, sel)
 		switch obj.(type) {
 		case nil:
 			check.invalidArg(x.pos(), "%s has no single field %s", base, sel)
diff --git a/libgo/go/go/types/call.go b/libgo/go/go/types/call.go
index 88e3336..31f9372 100644
--- a/libgo/go/go/types/call.go
+++ b/libgo/go/go/types/call.go
@@ -370,7 +370,7 @@
 		goto Error
 	}
 
-	obj, index, indirect = LookupFieldOrMethod(x.typ, x.mode == variable, check.pkg, sel)
+	obj, index, indirect = check.LookupFieldOrMethod(x.typ, x.mode == variable, check.pkg, sel)
 	if obj == nil {
 		switch {
 		case index != nil:
@@ -437,6 +437,10 @@
 
 			if debug {
 				// Verify that LookupFieldOrMethod and MethodSet.Lookup agree.
+				// TODO(gri) This only works because we call LookupFieldOrMethod
+				// _before_ calling NewMethodSet: LookupFieldOrMethod completes
+				// any incomplete interfaces so they are available to NewMethodSet
+				// (which assumes that interfaces have been completed already).
 				typ := x.typ
 				if x.mode == variable {
 					// If typ is not an (unnamed) pointer or an interface,
@@ -460,6 +464,11 @@
 				if m := mset.Lookup(check.pkg, sel); m == nil || m.obj != obj {
 					check.dump("%v: (%s).%v -> %s", e.Pos(), typ, obj.name, m)
 					check.dump("%s\n", mset)
+					// Caution: MethodSets are supposed to be used externally
+					// only (after all interface types were completed). It's
+					// now possible that we get here incorrectly. Not urgent
+					// to fix since we only run this code in debug mode.
+					// TODO(gri) fix this eventually.
 					panic("method sets and lookup don't agree")
 				}
 			}
diff --git a/libgo/go/go/types/check.go b/libgo/go/go/types/check.go
index b48d09d..b599df1 100644
--- a/libgo/go/go/types/check.go
+++ b/libgo/go/go/types/check.go
@@ -76,8 +76,10 @@
 	fset *token.FileSet
 	pkg  *Package
 	*Info
-	objMap map[Object]*declInfo   // maps package-level objects and (non-interface) methods to declaration info
-	impMap map[importKey]*Package // maps (import path, source directory) to (complete or fake) package
+	objMap map[Object]*declInfo       // maps package-level objects and (non-interface) methods to declaration info
+	impMap map[importKey]*Package     // maps (import path, source directory) to (complete or fake) package
+	posMap map[*Interface][]token.Pos // maps interface types to lists of embedded interface positions
+	pkgCnt map[string]int             // counts number of imported packages with a given name (for better error messages)
 
 	// information collected during type-checking of a set of package files
 	// (initialized by Files, valid only for the duration of check.Files;
@@ -86,12 +88,11 @@
 	unusedDotImports map[*Scope]map[*Package]token.Pos // positions of unused dot-imported packages for each file scope
 
 	firstErr error                 // first error encountered
-	methods  map[*TypeName][]*Func // maps package scope type names to associated non-blank, non-interface methods
-	// TODO(gri) move interfaces up to the group of fields persistent across check.Files invocations (see also comment in Checker.initFiles)
-	interfaces map[*TypeName]*ifaceInfo // maps interface type names to corresponding interface infos
-	untyped    map[ast.Expr]exprInfo    // map of expressions without final type
-	delayed    []func()                 // stack of delayed actions
-	objPath    []Object                 // path of object dependencies during type inference (for cycle reporting)
+	methods  map[*TypeName][]*Func // maps package scope type names to associated non-blank (non-interface) methods
+	untyped  map[ast.Expr]exprInfo // map of expressions without final type
+	delayed  []func()              // stack of delayed action segments; segments are processed in FIFO order
+	finals   []func()              // list of final actions; processed at the end of type-checking the current set of files
+	objPath  []Object              // path of object dependencies during type inference (for cycle reporting)
 
 	// context within which the current object is type-checked
 	// (valid only for the duration of type-checking a specific object)
@@ -146,6 +147,14 @@
 	check.delayed = append(check.delayed, f)
 }
 
+// atEnd adds f to the list of actions processed at the end
+// of type-checking, before initialization order computation.
+// Actions added by atEnd are processed after any actions
+// added by later.
+func (check *Checker) atEnd(f func()) {
+	check.finals = append(check.finals, f)
+}
+
 // push pushes obj onto the object path and returns its index in the path.
 func (check *Checker) push(obj Object) int {
 	check.objPath = append(check.objPath, obj)
@@ -181,6 +190,8 @@
 		Info:   info,
 		objMap: make(map[Object]*declInfo),
 		impMap: make(map[importKey]*Package),
+		posMap: make(map[*Interface][]token.Pos),
+		pkgCnt: make(map[string]int),
 	}
 }
 
@@ -193,17 +204,9 @@
 
 	check.firstErr = nil
 	check.methods = nil
-	// Don't clear the interfaces cache! It's important that we don't recompute
-	// ifaceInfos repeatedly (due to multiple check.Files calls) because when
-	// they are recomputed, they are not used in the context of their original
-	// declaration (because those types are already type-checked, typically) and
-	// then they will get the wrong receiver types, which matters for go/types
-	// clients. It is also safe to not reset the interfaces cache because files
-	// added to a package cannot change (add methods to) existing interface types;
-	// they can only add new interfaces. See also the respective comment in
-	// checker.infoFromTypeName (interfaces.go). Was bug - see issue #29029.
 	check.untyped = nil
 	check.delayed = nil
+	check.finals = nil
 
 	// determine package name and collect valid files
 	pkg := check.pkg
@@ -254,6 +257,7 @@
 	check.packageObjects()
 
 	check.processDelayed(0) // incl. all functions
+	check.processFinals()
 
 	check.initOrder()
 
@@ -267,6 +271,31 @@
 	return
 }
 
+// processDelayed processes all delayed actions pushed after top.
+func (check *Checker) processDelayed(top int) {
+	// If each delayed action pushes a new action, the
+	// stack will continue to grow during this loop.
+	// However, it is only processing functions (which
+	// are processed in a delayed fashion) that may
+	// add more actions (such as nested functions), so
+	// this is a sufficiently bounded process.
+	for i := top; i < len(check.delayed); i++ {
+		check.delayed[i]() // may append to check.delayed
+	}
+	assert(top <= len(check.delayed)) // stack must not have shrunk
+	check.delayed = check.delayed[:top]
+}
+
+func (check *Checker) processFinals() {
+	n := len(check.finals)
+	for _, f := range check.finals {
+		f() // must not append to check.finals
+	}
+	if len(check.finals) != n {
+		panic("internal error: final action list grew")
+	}
+}
+
 func (check *Checker) recordUntyped() {
 	if !debug && check.Types == nil {
 		return // nothing to do
diff --git a/libgo/go/go/types/check_test.go b/libgo/go/go/types/check_test.go
index 358e7c5..89122d7 100644
--- a/libgo/go/go/types/check_test.go
+++ b/libgo/go/go/types/check_test.go
@@ -42,8 +42,9 @@
 )
 
 var (
-	listErrors = flag.Bool("errlist", false, "list errors")
-	testFiles  = flag.String("files", "", "space-separated list of test files")
+	haltOnError = flag.Bool("halt", false, "halt on error")
+	listErrors  = flag.Bool("errlist", false, "list errors")
+	testFiles   = flag.String("files", "", "space-separated list of test files")
 )
 
 // The test filenames do not end in .go so that they are invisible
@@ -96,6 +97,7 @@
 	{"testdata/issue23203a.src"},
 	{"testdata/issue23203b.src"},
 	{"testdata/issue28251.src"},
+	{"testdata/issue6977.src"},
 }
 
 var fset = token.NewFileSet()
@@ -262,6 +264,9 @@
 	}
 	conf.Importer = importer.Default()
 	conf.Error = func(err error) {
+		if *haltOnError {
+			defer panic(err)
+		}
 		if *listErrors {
 			t.Error(err)
 			return
diff --git a/libgo/go/go/types/conversions.go b/libgo/go/go/types/conversions.go
index fecb7b6..7ea8fd7 100644
--- a/libgo/go/go/types/conversions.go
+++ b/libgo/go/go/types/conversions.go
@@ -89,7 +89,7 @@
 	V := x.typ
 	Vu := V.Underlying()
 	Tu := T.Underlying()
-	if IdenticalIgnoreTags(Vu, Tu) {
+	if check.identicalIgnoreTags(Vu, Tu) {
 		return true
 	}
 
@@ -97,7 +97,7 @@
 	// have identical underlying types if tags are ignored"
 	if V, ok := V.(*Pointer); ok {
 		if T, ok := T.(*Pointer); ok {
-			if IdenticalIgnoreTags(V.base.Underlying(), T.base.Underlying()) {
+			if check.identicalIgnoreTags(V.base.Underlying(), T.base.Underlying()) {
 				return true
 			}
 		}
diff --git a/libgo/go/go/types/decl.go b/libgo/go/go/types/decl.go
index 1e2790a..5c0e611 100644
--- a/libgo/go/go/types/decl.go
+++ b/libgo/go/go/types/decl.go
@@ -38,22 +38,7 @@
 }
 
 // pathString returns a string of the form a->b-> ... ->g for a path [a, b, ... g].
-// TODO(gri) remove once we don't need the old cycle detection (explicitly passed
-//           []*TypeName path) anymore
-func pathString(path []*TypeName) string {
-	var s string
-	for i, p := range path {
-		if i > 0 {
-			s += "->"
-		}
-		s += p.Name()
-	}
-	return s
-}
-
-// objPathString returns a string of the form a->b-> ... ->g for a path [a, b, ... g].
-// TODO(gri) s/objPathString/pathString/ once we got rid of pathString above
-func objPathString(path []Object) string {
+func pathString(path []Object) string {
 	var s string
 	for i, p := range path {
 		if i > 0 {
@@ -68,11 +53,11 @@
 // For the meaning of def, see Checker.definedType, in typexpr.go.
 func (check *Checker) objDecl(obj Object, def *Named) {
 	if trace {
-		check.trace(obj.Pos(), "-- checking %s %s (objPath = %s)", obj.color(), obj, objPathString(check.objPath))
+		check.trace(obj.Pos(), "-- checking %s (%s, objPath = %s)", obj, obj.color(), pathString(check.objPath))
 		check.indent++
 		defer func() {
 			check.indent--
-			check.trace(obj.Pos(), "=> %s", obj)
+			check.trace(obj.Pos(), "=> %s (%s)", obj, obj.color())
 		}()
 	}
 
@@ -140,17 +125,17 @@
 		// order code.
 		switch obj := obj.(type) {
 		case *Const:
-			if check.typeCycle(obj) || obj.typ == nil {
+			if check.cycle(obj) || obj.typ == nil {
 				obj.typ = Typ[Invalid]
 			}
 
 		case *Var:
-			if check.typeCycle(obj) || obj.typ == nil {
+			if check.cycle(obj) || obj.typ == nil {
 				obj.typ = Typ[Invalid]
 			}
 
 		case *TypeName:
-			if check.typeCycle(obj) {
+			if check.cycle(obj) {
 				// break cycle
 				// (without this, calling underlying()
 				// below may lead to an endless loop
@@ -160,7 +145,7 @@
 			}
 
 		case *Func:
-			if check.typeCycle(obj) {
+			if check.cycle(obj) {
 				// Don't set obj.typ to Typ[Invalid] here
 				// because plenty of code type-asserts that
 				// functions have a *Signature type. Grey
@@ -213,18 +198,9 @@
 	}
 }
 
-// indir is a sentinel type name that is pushed onto the object path
-// to indicate an "indirection" in the dependency from one type name
-// to the next. For instance, for "type p *p" the object path contains
-// p followed by indir, indicating that there's an indirection *p.
-// Indirections are used to break type cycles.
-var indir = NewTypeName(token.NoPos, nil, "*", nil)
-
-// typeCycle checks if the cycle starting with obj is valid and
+// cycle checks if the cycle starting with obj is valid and
 // reports an error if it is not.
-// TODO(gri) rename s/typeCycle/cycle/ once we don't need the other
-// cycle method anymore.
-func (check *Checker) typeCycle(obj Object) (isCycle bool) {
+func (check *Checker) cycle(obj Object) (isCycle bool) {
 	// The object map contains the package scope objects and the non-interface methods.
 	if debug {
 		info := check.objMap[obj]
@@ -236,52 +212,34 @@
 		}
 	}
 
-	// Given the number of constants and variables (nval) in the cycle
-	// and the cycle length (ncycle = number of named objects in the cycle),
-	// we distinguish between cycles involving only constants and variables
-	// (nval = ncycle), cycles involving types (and functions) only
-	// (nval == 0), and mixed cycles (nval != 0 && nval != ncycle).
-	// We ignore functions at the moment (taking them into account correctly
-	// is complicated and it doesn't improve error reporting significantly).
-	//
-	// A cycle must have at least one indirection and one type definition
-	// to be permitted: If there is no indirection, the size of the type
-	// cannot be computed (it's either infinite or 0); if there is no type
-	// definition, we have a sequence of alias type names which will expand
-	// ad infinitum.
-	var nval, ncycle int
-	var hasIndir, hasTDef bool
+	// Count cycle objects.
 	assert(obj.color() >= grey)
 	start := obj.color() - grey // index of obj in objPath
 	cycle := check.objPath[start:]
-	ncycle = len(cycle) // including indirections
+	nval := 0 // number of (constant or variable) values in the cycle
+	ndef := 0 // number of type definitions in the cycle
 	for _, obj := range cycle {
 		switch obj := obj.(type) {
 		case *Const, *Var:
 			nval++
 		case *TypeName:
-			if obj == indir {
-				ncycle-- // don't count (indirections are not objects)
-				hasIndir = true
+			// Determine if the type name is an alias or not. For
+			// package-level objects, use the object map which
+			// provides syntactic information (which doesn't rely
+			// on the order in which the objects are set up). For
+			// local objects, we can rely on the order, so use
+			// the object's predicate.
+			// TODO(gri) It would be less fragile to always access
+			// the syntactic information. We should consider storing
+			// this information explicitly in the object.
+			var alias bool
+			if d := check.objMap[obj]; d != nil {
+				alias = d.alias // package-level object
 			} else {
-				// Determine if the type name is an alias or not. For
-				// package-level objects, use the object map which
-				// provides syntactic information (which doesn't rely
-				// on the order in which the objects are set up). For
-				// local objects, we can rely on the order, so use
-				// the object's predicate.
-				// TODO(gri) It would be less fragile to always access
-				// the syntactic information. We should consider storing
-				// this information explicitly in the object.
-				var alias bool
-				if d := check.objMap[obj]; d != nil {
-					alias = d.alias // package-level object
-				} else {
-					alias = obj.IsAlias() // function local object
-				}
-				if !alias {
-					hasTDef = true
-				}
+				alias = obj.IsAlias() // function local object
+			}
+			if !alias {
+				ndef++
 			}
 		case *Func:
 			// ignored for now
@@ -291,8 +249,8 @@
 	}
 
 	if trace {
-		check.trace(obj.Pos(), "## cycle detected: objPath = %s->%s (len = %d)", objPathString(cycle), obj.Name(), ncycle)
-		check.trace(obj.Pos(), "## cycle contains: %d values, has indirection = %v, has type definition = %v", nval, hasIndir, hasTDef)
+		check.trace(obj.Pos(), "## cycle detected: objPath = %s->%s (len = %d)", pathString(cycle), obj.Name(), len(cycle))
+		check.trace(obj.Pos(), "## cycle contains: %d values, %d type definitions", nval, ndef)
 		defer func() {
 			if isCycle {
 				check.trace(obj.Pos(), "=> error: cycle is invalid")
@@ -303,38 +261,132 @@
 	// A cycle involving only constants and variables is invalid but we
 	// ignore them here because they are reported via the initialization
 	// cycle check.
-	if nval == ncycle {
+	if nval == len(cycle) {
 		return false
 	}
 
-	// A cycle involving only types (and possibly functions) must have at
-	// least one indirection and one type definition to be permitted: If
-	// there is no indirection, the size of the type cannot be computed
-	// (it's either infinite or 0); if there is no type definition, we
+	// A cycle involving only types (and possibly functions) must have at least
+	// one type definition to be permitted: If there is no type definition, we
 	// have a sequence of alias type names which will expand ad infinitum.
-	if nval == 0 && hasIndir && hasTDef {
+	if nval == 0 && ndef > 0 {
 		return false // cycle is permitted
 	}
 
-	// report cycle
-	check.errorf(obj.Pos(), "illegal cycle in declaration of %s", obj.Name())
-	for _, obj := range cycle {
-		if obj == indir {
-			continue // don't print indir sentinels
-		}
-		check.errorf(obj.Pos(), "\t%s refers to", obj.Name()) // secondary error, \t indented
-	}
-	check.errorf(obj.Pos(), "\t%s", obj.Name())
+	check.cycleError(cycle)
 
 	return true
 }
 
+type typeInfo uint
+
+// validType verifies that the given type does not "expand" infinitely
+// producing a cycle in the type graph. Cycles are detected by marking
+// defined types.
+// (Cycles involving alias types, as in "type A = [10]A" are detected
+// earlier, via the objDecl cycle detection mechanism.)
+func (check *Checker) validType(typ Type, path []Object) typeInfo {
+	const (
+		unknown typeInfo = iota
+		marked
+		valid
+		invalid
+	)
+
+	switch t := typ.(type) {
+	case *Array:
+		return check.validType(t.elem, path)
+
+	case *Struct:
+		for _, f := range t.fields {
+			if check.validType(f.typ, path) == invalid {
+				return invalid
+			}
+		}
+
+	case *Interface:
+		for _, etyp := range t.embeddeds {
+			if check.validType(etyp, path) == invalid {
+				return invalid
+			}
+		}
+
+	case *Named:
+		// don't touch the type if it is from a different package or the Universe scope
+		// (doing so would lead to a race condition - was issue #35049)
+		if t.obj.pkg != check.pkg {
+			return valid
+		}
+
+		// don't report a 2nd error if we already know the type is invalid
+		// (e.g., if a cycle was detected earlier, via Checker.underlying).
+		if t.underlying == Typ[Invalid] {
+			t.info = invalid
+			return invalid
+		}
+
+		switch t.info {
+		case unknown:
+			t.info = marked
+			t.info = check.validType(t.orig, append(path, t.obj)) // only types of current package added to path
+		case marked:
+			// cycle detected
+			for i, tn := range path {
+				if t.obj.pkg != check.pkg {
+					panic("internal error: type cycle via package-external type")
+				}
+				if tn == t.obj {
+					check.cycleError(path[i:])
+					t.info = invalid
+					t.underlying = Typ[Invalid]
+					return t.info
+				}
+			}
+			panic("internal error: cycle start not found")
+		}
+		return t.info
+	}
+
+	return valid
+}
+
+// cycleError reports a declaration cycle starting with
+// the object in cycle that is "first" in the source.
+func (check *Checker) cycleError(cycle []Object) {
+	// TODO(gri) Should we start with the last (rather than the first) object in the cycle
+	//           since that is the earliest point in the source where we start seeing the
+	//           cycle? That would be more consistent with other error messages.
+	i := firstInSrc(cycle)
+	obj := cycle[i]
+	check.errorf(obj.Pos(), "illegal cycle in declaration of %s", obj.Name())
+	for range cycle {
+		check.errorf(obj.Pos(), "\t%s refers to", obj.Name()) // secondary error, \t indented
+		i++
+		if i >= len(cycle) {
+			i = 0
+		}
+		obj = cycle[i]
+	}
+	check.errorf(obj.Pos(), "\t%s", obj.Name())
+}
+
+// firstInSrc reports the index of the object with the "smallest"
+// source position in path. path must not be empty.
+func firstInSrc(path []Object) int {
+	fst, pos := 0, path[0].Pos()
+	for i, t := range path[1:] {
+		if t.Pos() < pos {
+			fst, pos = i+1, t.Pos()
+		}
+	}
+	return fst
+}
+
 func (check *Checker) constDecl(obj *Const, typ, init ast.Expr) {
 	assert(obj.typ == nil)
 
 	// use the correct value of iota
+	defer func(iota constant.Value) { check.iota = iota }(check.iota)
 	check.iota = obj.val
-	defer func() { check.iota = nil }()
 
 	// provide valid constant value under all circumstances
 	obj.val = constant.MakeUnknown()
@@ -424,15 +476,60 @@
 
 // underlying returns the underlying type of typ; possibly by following
 // forward chains of named types. Such chains only exist while named types
-// are incomplete.
-func underlying(typ Type) Type {
+// are incomplete. If an underlying type is found, resolve the chain by
+// setting the underlying type for each defined type in the chain before
+// returning it.
+//
+// If no underlying type is found, a cycle error is reported and Typ[Invalid]
+// is used as underlying type for each defined type in the chain and returned
+// as result.
+func (check *Checker) underlying(typ Type) Type {
+	// If typ is not a defined type, its underlying type is itself.
+	n0, _ := typ.(*Named)
+	if n0 == nil {
+		return typ // nothing to do
+	}
+
+	// If the underlying type of a defined type is not a defined
+	// type, then that is the desired underlying type.
+	typ = n0.underlying
+	n, _ := typ.(*Named)
+	if n == nil {
+		return typ // common case
+	}
+
+	// Otherwise, follow the forward chain.
+	seen := map[*Named]int{n0: 0}
+	path := []Object{n0.obj}
 	for {
-		n, _ := typ.(*Named)
-		if n == nil {
+		typ = n.underlying
+		n1, _ := typ.(*Named)
+		if n1 == nil {
+			break // end of chain
+		}
+
+		seen[n] = len(seen)
+		path = append(path, n.obj)
+		n = n1
+
+		if i, ok := seen[n]; ok {
+			// cycle
+			check.cycleError(path[i:])
+			typ = Typ[Invalid]
 			break
 		}
-		typ = n.underlying
 	}
+
+	for n := range seen {
+		// We should never have to update the underlying type of an imported type;
+		// those underlying types should have been resolved during the import.
+		// Also, doing so would lead to a race condition (was issue #31749).
+		if n.obj.pkg != check.pkg {
+			panic("internal error: imported type with unresolved underlying type")
+		}
+		n.underlying = typ
+	}
+
 	return typ
 }
 
@@ -445,6 +542,10 @@
 func (check *Checker) typeDecl(obj *TypeName, typ ast.Expr, def *Named, alias bool) {
 	assert(obj.typ == nil)
 
+	check.later(func() {
+		check.validType(obj.typ, nil)
+	})
+
 	if alias {
 
 		obj.typ = Typ[Invalid]
@@ -457,7 +558,7 @@
 		obj.typ = named // make sure recursive type declarations terminate
 
 		// determine underlying type of named
-		check.definedType(typ, named)
+		named.orig = check.definedType(typ, named)
 
 		// The underlying type of named may be itself a named type that is
 		// incomplete:
@@ -471,8 +572,8 @@
 		// The type of C is the (named) type of A which is incomplete,
 		// and which has as its underlying type the named type B.
 		// Determine the (final, unnamed) underlying type by resolving
-		// any forward chain (they always end in an unnamed type).
-		named.underlying = underlying(named.underlying)
+		// any forward chain.
+		named.underlying = check.underlying(named)
 
 	}
 
diff --git a/libgo/go/go/types/errors.go b/libgo/go/go/types/errors.go
index 68c96c0..91b0771 100644
--- a/libgo/go/go/types/errors.go
+++ b/libgo/go/go/types/errors.go
@@ -10,7 +10,7 @@
 	"fmt"
 	"go/ast"
 	"go/token"
-	"path"
+	"strconv"
 	"strings"
 )
 
@@ -25,8 +25,13 @@
 }
 
 func (check *Checker) qualifier(pkg *Package) string {
+	// Qualify the package unless it's the package being type-checked.
 	if pkg != check.pkg {
-		return path.Base(pkg.path) // avoid excessively long path names in error messages
+		// If the same package name was used by multiple packages, display the full path.
+		if check.pkgCnt[pkg.name] > 1 {
+			return strconv.Quote(pkg.path)
+		}
+		return pkg.name
 	}
 	return ""
 }
@@ -82,6 +87,10 @@
 		check.firstErr = err
 	}
 
+	if trace {
+		check.trace(pos, "ERROR: %s", msg)
+	}
+
 	f := check.conf.Error
 	if f == nil {
 		panic(bailout{}) // report only first error
diff --git a/libgo/go/go/types/example_test.go b/libgo/go/go/types/example_test.go
index 5619d20..d041087 100644
--- a/libgo/go/go/types/example_test.go
+++ b/libgo/go/go/types/example_test.go
@@ -5,7 +5,7 @@
 // Only run where builders (build.golang.org) have
 // access to compiled packages for import.
 //
-// +build !arm,!arm64,!nacl
+// +build !arm,!arm64
 
 package types_test
 
diff --git a/libgo/go/go/types/expr.go b/libgo/go/go/types/expr.go
index 66d62d6..d49ccdf 100644
--- a/libgo/go/go/types/expr.go
+++ b/libgo/go/go/types/expr.go
@@ -548,9 +548,6 @@
 			}
 		}
 	case *Interface:
-		if !x.isNil() && !t.Empty() /* empty interfaces are ok */ {
-			goto Error
-		}
 		// Update operand types to the default type rather then
 		// the target (interface) type: values must have concrete
 		// dynamic types. If the value is nil, keep it untyped
@@ -561,6 +558,7 @@
 			target = Typ[UntypedNil]
 		} else {
 			// cannot assign untyped values to non-empty interfaces
+			check.completeInterface(t)
 			if !t.Empty() {
 				goto Error
 			}
@@ -809,7 +807,7 @@
 		return
 	}
 
-	if !Identical(x.typ, y.typ) {
+	if !check.identical(x.typ, y.typ) {
 		// only report an error if we have valid types
 		// (otherwise we had an error reported elsewhere already)
 		if x.typ != Typ[Invalid] && y.typ != Typ[Invalid] {
@@ -1159,12 +1157,9 @@
 			}
 
 		case *Array:
-			// Prevent crash if the array referred to is not yet set up.
-			// This is a stop-gap solution; a better approach would use the mechanism of
-			// Checker.ident (typexpr.go) using a path of types. But that would require
-			// passing the path everywhere (all expression-checking methods, not just
-			// type expression checking), and we're not set up for that (quite possibly
-			// an indication that cycle detection needs to be rethought). Was issue #18643.
+			// Prevent crash if the array referred to is not yet set up. Was issue #18643.
+			// This is a stop-gap solution. Should use Checker.objPath to report entire
+			// path starting with earliest declaration in the source. TODO(gri) fix this.
 			if utyp.elem == nil {
 				check.error(e.Pos(), "illegal cycle in type declaration")
 				goto Error
@@ -1223,7 +1218,7 @@
 					xkey := keyVal(x.val)
 					if _, ok := utyp.key.Underlying().(*Interface); ok {
 						for _, vtyp := range visited[xkey] {
-							if Identical(vtyp, x.typ) {
+							if check.identical(vtyp, x.typ) {
 								duplicate = true
 								break
 							}
diff --git a/libgo/go/go/types/initorder.go b/libgo/go/go/types/initorder.go
index 966dccb..9d5e916 100644
--- a/libgo/go/go/types/initorder.go
+++ b/libgo/go/go/types/initorder.go
@@ -69,7 +69,7 @@
 
 		// if n still depends on other nodes, we have a cycle
 		if n.ndeps > 0 {
-			cycle := findPath(check.objMap, n.obj, n.obj, make(objSet))
+			cycle := findPath(check.objMap, n.obj, n.obj, make(map[Object]bool))
 			// If n.obj is not part of the cycle (e.g., n.obj->b->c->d->c),
 			// cycle will be nil. Don't report anything in that case since
 			// the cycle is reported when the algorithm gets to an object
@@ -130,17 +130,17 @@
 // findPath returns the (reversed) list of objects []Object{to, ... from}
 // such that there is a path of object dependencies from 'from' to 'to'.
 // If there is no such path, the result is nil.
-func findPath(objMap map[Object]*declInfo, from, to Object, visited objSet) []Object {
-	if visited[from] {
-		return nil // node already seen
+func findPath(objMap map[Object]*declInfo, from, to Object, seen map[Object]bool) []Object {
+	if seen[from] {
+		return nil
 	}
-	visited[from] = true
+	seen[from] = true
 
 	for d := range objMap[from].deps {
 		if d == to {
 			return []Object{d}
 		}
-		if P := findPath(objMap, d, to, visited); P != nil {
+		if P := findPath(objMap, d, to, seen); P != nil {
 			return append(P, d)
 		}
 	}
diff --git a/libgo/go/go/types/interfaces.go b/libgo/go/go/types/interfaces.go
deleted file mode 100644
index e0ef83a..0000000
--- a/libgo/go/go/types/interfaces.go
+++ /dev/null
@@ -1,451 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this src code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package types
-
-import (
-	"bytes"
-	"fmt"
-	"go/ast"
-	"go/token"
-)
-
-// This file implements the collection of an interface's methods
-// without relying on partially computed types of methods or interfaces
-// for interface types declared at the package level.
-//
-// Because interfaces must not embed themselves, directly or indirectly,
-// the method set of a valid interface can always be computed independent
-// of any cycles that might exist via method signatures (see also issue #18395).
-//
-// Except for blank method name and interface cycle errors, no errors
-// are reported. Affected methods or embedded interfaces are silently
-// dropped. Subsequent type-checking of the interface will check
-// signatures and embedded interfaces and report errors at that time.
-//
-// Only infoFromTypeLit should be called directly from code outside this file
-// to compute an ifaceInfo.
-
-// ifaceInfo describes the method set for an interface.
-// The zero value for an ifaceInfo is a ready-to-use ifaceInfo representing
-// the empty interface.
-type ifaceInfo struct {
-	explicits int           // number of explicitly declared methods
-	methods   []*methodInfo // all methods, starting with explicitly declared ones in source order
-}
-
-// emptyIfaceInfo represents the ifaceInfo for the empty interface.
-var emptyIfaceInfo ifaceInfo
-
-func (info *ifaceInfo) String() string {
-	var buf bytes.Buffer
-	fmt.Fprintf(&buf, "interface{")
-	for i, m := range info.methods {
-		if i > 0 {
-			fmt.Fprint(&buf, " ")
-		}
-		fmt.Fprint(&buf, m)
-	}
-	fmt.Fprintf(&buf, "}")
-	return buf.String()
-}
-
-// methodInfo represents an interface method.
-// At least one of src or fun must be non-nil.
-// (Methods declared in the current package have a non-nil scope
-// and src, and eventually a non-nil fun field; imported and pre-
-// declared methods have a nil scope and src, and only a non-nil
-// fun field.)
-type methodInfo struct {
-	scope *Scope     // scope of interface method; or nil
-	src   *ast.Field // syntax tree representation of interface method; or nil
-	fun   *Func      // corresponding fully type-checked method type; or nil
-}
-
-func (info *methodInfo) String() string {
-	if info.fun != nil {
-		return info.fun.name
-	}
-	return info.src.Names[0].Name
-}
-
-func (info *methodInfo) Pos() token.Pos {
-	if info.fun != nil {
-		return info.fun.Pos()
-	}
-	return info.src.Pos()
-}
-
-func (info *methodInfo) id(pkg *Package) string {
-	if info.fun != nil {
-		return info.fun.Id()
-	}
-	return Id(pkg, info.src.Names[0].Name)
-}
-
-// A methodInfoSet maps method ids to methodInfos.
-// It is used to determine duplicate declarations.
-// (A methodInfo set is the equivalent of an objset
-// but for methodInfos rather than Objects.)
-type methodInfoSet map[string]*methodInfo
-
-// insert attempts to insert an method m into the method set s.
-// If s already contains an alternative method alt with
-// the same name, insert leaves s unchanged and returns alt.
-// Otherwise it inserts m and returns nil.
-func (s *methodInfoSet) insert(pkg *Package, m *methodInfo) *methodInfo {
-	id := m.id(pkg)
-	if alt := (*s)[id]; alt != nil {
-		return alt
-	}
-	if *s == nil {
-		*s = make(methodInfoSet)
-	}
-	(*s)[id] = m
-	return nil
-}
-
-// like Checker.declareInSet but for method infos.
-func (check *Checker) declareInMethodSet(mset *methodInfoSet, pos token.Pos, m *methodInfo) bool {
-	if alt := mset.insert(check.pkg, m); alt != nil {
-		check.errorf(pos, "%s redeclared", m)
-		check.reportAltMethod(alt)
-		return false
-	}
-	return true
-}
-
-// like Checker.reportAltDecl but for method infos.
-func (check *Checker) reportAltMethod(m *methodInfo) {
-	if pos := m.Pos(); pos.IsValid() {
-		// We use "other" rather than "previous" here because
-		// the first declaration seen may not be textually
-		// earlier in the source.
-		check.errorf(pos, "\tother declaration of %s", m) // secondary error, \t indented
-	}
-}
-
-// infoFromTypeLit computes the method set for the given interface iface
-// declared in scope.
-// If a corresponding type name exists (tname != nil), it is used for
-// cycle detection and to cache the method set.
-// The result is the method set, or nil if there is a cycle via embedded
-// interfaces. A non-nil result doesn't mean that there were no errors,
-// but they were either reported (e.g., blank methods), or will be found
-// (again) when computing the interface's type.
-// If tname is not nil it must be the last element in path.
-func (check *Checker) infoFromTypeLit(scope *Scope, iface *ast.InterfaceType, tname *TypeName, path []*TypeName) (info *ifaceInfo) {
-	assert(iface != nil)
-
-	// lazy-allocate interfaces map
-	if check.interfaces == nil {
-		check.interfaces = make(map[*TypeName]*ifaceInfo)
-	}
-
-	if trace {
-		check.trace(iface.Pos(), "-- collect methods for %v (path = %s, objPath = %s)", iface, pathString(path), objPathString(check.objPath))
-		check.indent++
-		defer func() {
-			check.indent--
-			check.trace(iface.Pos(), "=> %s", info)
-		}()
-	}
-
-	// If the interface is named, check if we computed info already.
-	//
-	// This is not simply an optimization; we may run into stack
-	// overflow with recursive interface declarations. Example:
-	//
-	//      type T interface {
-	//              m() interface { T }
-	//      }
-	//
-	// (Since recursive definitions can only be expressed via names,
-	// it is sufficient to track named interfaces here.)
-	//
-	// While at it, use the same mechanism to detect cycles. (We still
-	// have the path-based cycle check because we want to report the
-	// entire cycle if present.)
-	if tname != nil {
-		assert(path[len(path)-1] == tname) // tname must be last path element
-		var found bool
-		if info, found = check.interfaces[tname]; found {
-			if info == nil {
-				// We have a cycle and use check.cycle to report it.
-				// We are guaranteed that check.cycle also finds the
-				// cycle because when infoFromTypeLit is called, any
-				// tname that's already in check.interfaces was also
-				// added to the path. (But the converse is not true:
-				// A non-nil tname is always the last element in path.)
-				ok := check.cycle(tname, path, true)
-				assert(ok)
-			}
-			return
-		}
-		check.interfaces[tname] = nil // computation started but not complete
-	}
-
-	if iface.Methods.List == nil {
-		// fast track for empty interface
-		info = &emptyIfaceInfo
-	} else {
-		// (syntactically) non-empty interface
-		info = new(ifaceInfo)
-
-		// collect explicitly declared methods and embedded interfaces
-		var mset methodInfoSet
-		var embeddeds []*ifaceInfo
-		var positions []token.Pos // entries correspond to positions of embeddeds; used for error reporting
-		for _, f := range iface.Methods.List {
-			if len(f.Names) > 0 {
-				// We have a method with name f.Names[0].
-				// (The parser ensures that there's only one method
-				// and we don't care if a constructed AST has more.)
-
-				// spec: "As with all method sets, in an interface type,
-				// each method must have a unique non-blank name."
-				if name := f.Names[0]; name.Name == "_" {
-					check.errorf(name.Pos(), "invalid method name _")
-					continue // ignore
-				}
-
-				m := &methodInfo{scope: scope, src: f}
-				if check.declareInMethodSet(&mset, f.Pos(), m) {
-					info.methods = append(info.methods, m)
-				}
-			} else {
-				// We have an embedded interface and f.Type is its
-				// (possibly qualified) embedded type name. Collect
-				// it if it's a valid interface.
-				var e *ifaceInfo
-				switch ename := f.Type.(type) {
-				case *ast.Ident:
-					e = check.infoFromTypeName(scope, ename, path)
-				case *ast.SelectorExpr:
-					e = check.infoFromQualifiedTypeName(scope, ename)
-				default:
-					// The parser makes sure we only see one of the above.
-					// Constructed ASTs may contain other (invalid) nodes;
-					// we simply ignore them. The full type-checking pass
-					// will report those as errors later.
-				}
-				if e != nil {
-					embeddeds = append(embeddeds, e)
-					positions = append(positions, f.Type.Pos())
-				}
-			}
-		}
-		info.explicits = len(info.methods)
-
-		// collect methods of embedded interfaces
-		for i, e := range embeddeds {
-			pos := positions[i] // position of type name of embedded interface
-			for _, m := range e.methods {
-				if check.declareInMethodSet(&mset, pos, m) {
-					info.methods = append(info.methods, m)
-				}
-			}
-		}
-	}
-
-	// mark check.interfaces as complete
-	assert(info != nil)
-	if tname != nil {
-		check.interfaces[tname] = info
-	}
-
-	return
-}
-
-// infoFromTypeName computes the method set for the given type name
-// which must denote a type whose underlying type is an interface.
-// The same result qualifications apply as for infoFromTypeLit.
-// infoFromTypeName should only be called from infoFromTypeLit.
-func (check *Checker) infoFromTypeName(scope *Scope, name *ast.Ident, path []*TypeName) *ifaceInfo {
-	// A single call of infoFromTypeName handles a sequence of (possibly
-	// recursive) type declarations connected via unqualified type names.
-	// Each type declaration leading to another typename causes a "tail call"
-	// (goto) of this function. The general scenario looks like this:
-	//
-	//      ...
-	//      type Pn T        // previous declarations leading to T, path = [..., Pn]
-	//      type T interface { T0; ... }  // T0 leads to call of infoFromTypeName
-	//
-	//      // infoFromTypeName(name = T0, path = [..., Pn, T])
-	//      type T0 T1       // path = [..., Pn, T, T0]
-	//      type T1 T2  <-+  // path = [..., Pn, T, T0, T1]
-	//      type T2 ...   |  // path = [..., Pn, T, T0, T1, T2]
-	//      type Tn T1  --+  // path = [..., Pn, T, T0, T1, T2, Tn] and T1 is in path => cycle
-	//
-	// infoFromTypeName returns nil when such a cycle is detected. But in
-	// contrast to cycles involving interfaces, we must not report the
-	// error for "type name only" cycles because they will be found again
-	// during type-checking of embedded interfaces. Reporting those cycles
-	// here would lead to double reporting. Cycles involving embedding are
-	// not reported again later because type-checking of interfaces relies
-	// on the ifaceInfos computed here which are cycle-free by design.
-	//
-	// Remember the path length to detect "type name only" cycles.
-	start := len(path)
-
-typenameLoop:
-	// name must be a type name denoting a type whose underlying type is an interface
-	_, obj := scope.LookupParent(name.Name, check.pos)
-	if obj == nil {
-		return nil
-	}
-	tname, _ := obj.(*TypeName)
-	if tname == nil {
-		return nil
-	}
-
-	// We have a type name. It may be predeclared (error type),
-	// imported (dot import), or declared by a type declaration.
-	// It may not be an interface (e.g., predeclared type int).
-	// Resolve it by analyzing each possible case.
-
-	// Abort but don't report an error if we have a "type name only"
-	// cycle (see big function comment).
-	if check.cycle(tname, path[start:], false) {
-		return nil
-	}
-
-	// Abort and report an error if we have a general cycle.
-	if check.cycle(tname, path, true) {
-		return nil
-	}
-
-	path = append(path, tname)
-
-	// If tname is a package-level type declaration, it must be
-	// in the objMap. Follow the RHS of that declaration if so.
-	// The RHS may be a literal type (likely case), or another
-	// (possibly parenthesized and/or qualified) type name.
-	// (The declaration may be an alias declaration, but it
-	// doesn't matter for the purpose of determining the under-
-	// lying interface.)
-	if decl := check.objMap[tname]; decl != nil {
-		switch typ := unparen(decl.typ).(type) {
-		case *ast.Ident:
-			// type tname T
-			name = typ
-			goto typenameLoop
-		case *ast.SelectorExpr:
-			// type tname p.T
-			return check.infoFromQualifiedTypeName(decl.file, typ)
-		case *ast.InterfaceType:
-			// type tname interface{...}
-			// If tname is fully type-checked at this point (tname.color() == black)
-			// we could use infoFromType here. But in this case, the interface must
-			// be in the check.interfaces cache as well, which will be hit when we
-			// call infoFromTypeLit below, and which will be faster. It is important
-			// that we use that previously computed interface because its methods
-			// have the correct receiver type (for go/types clients). Thus, the
-			// check.interfaces cache must be up-to-date across even across multiple
-			// check.Files calls (was bug - see issue #29029).
-			return check.infoFromTypeLit(decl.file, typ, tname, path)
-		}
-		// type tname X // and X is not an interface type
-		return nil
-	}
-
-	// If tname is not a package-level declaration, in a well-typed
-	// program it should be a predeclared (error type), imported (dot
-	// import), or function local declaration. Either way, it should
-	// have been fully declared before use, except if there is a direct
-	// cycle, and direct cycles will be caught above. Also, the denoted
-	// type should be an interface (e.g., int is not an interface).
-	if typ := tname.typ; typ != nil {
-		// typ should be an interface
-		if ityp, _ := typ.Underlying().(*Interface); ityp != nil {
-			return infoFromType(ityp)
-		}
-	}
-
-	// In all other cases we have some error.
-	return nil
-}
-
-// infoFromQualifiedTypeName computes the method set for the given qualified type name, or nil.
-func (check *Checker) infoFromQualifiedTypeName(scope *Scope, qname *ast.SelectorExpr) *ifaceInfo {
-	// see also Checker.selector
-	name, _ := qname.X.(*ast.Ident)
-	if name == nil {
-		return nil
-	}
-	_, obj1 := scope.LookupParent(name.Name, check.pos)
-	if obj1 == nil {
-		return nil
-	}
-	pname, _ := obj1.(*PkgName)
-	if pname == nil {
-		return nil
-	}
-	assert(pname.pkg == check.pkg)
-	obj2 := pname.imported.scope.Lookup(qname.Sel.Name)
-	if obj2 == nil || !obj2.Exported() {
-		return nil
-	}
-	tname, _ := obj2.(*TypeName)
-	if tname == nil {
-		return nil
-	}
-	ityp, _ := tname.typ.Underlying().(*Interface)
-	if ityp == nil {
-		return nil
-	}
-	return infoFromType(ityp)
-}
-
-// infoFromType computes the method set for the given interface type.
-// The result is never nil.
-func infoFromType(typ *Interface) *ifaceInfo {
-	assert(typ.allMethods != nil) // typ must be completely set up
-
-	// fast track for empty interface
-	n := len(typ.allMethods)
-	if n == 0 {
-		return &emptyIfaceInfo
-	}
-
-	info := new(ifaceInfo)
-	info.explicits = len(typ.methods)
-	info.methods = make([]*methodInfo, n)
-
-	// If there are no embedded interfaces, simply collect the
-	// explicitly declared methods (optimization of common case).
-	if len(typ.methods) == n {
-		for i, m := range typ.methods {
-			info.methods[i] = &methodInfo{fun: m}
-		}
-		return info
-	}
-
-	// Interface types have a separate list for explicitly declared methods
-	// which shares its methods with the list of all (explicitly declared or
-	// embedded) methods. Collect all methods in a set so we can separate
-	// the embedded methods from the explicitly declared ones.
-	all := make(map[*Func]bool, n)
-	for _, m := range typ.allMethods {
-		all[m] = true
-	}
-	assert(len(all) == n) // methods must be unique
-
-	// collect explicitly declared methods
-	info.methods = make([]*methodInfo, n)
-	for i, m := range typ.methods {
-		info.methods[i] = &methodInfo{fun: m}
-		delete(all, m)
-	}
-
-	// collect remaining (embedded) methods
-	i := len(typ.methods)
-	for m := range all {
-		info.methods[i] = &methodInfo{fun: m}
-		i++
-	}
-	assert(i == n)
-
-	return info
-}
diff --git a/libgo/go/go/types/issues_test.go b/libgo/go/go/types/issues_test.go
index c9f5413..f59f905 100644
--- a/libgo/go/go/types/issues_test.go
+++ b/libgo/go/go/types/issues_test.go
@@ -465,3 +465,61 @@
 		t.Errorf("\ngot : %swant: %s", got, want)
 	}
 }
+
+func TestIssue34151(t *testing.T) {
+	const asrc = `package a; type I interface{ M() }; type T struct { F interface { I } }`
+	const bsrc = `package b; import "a"; type T struct { F interface { a.I } }; var _ = a.T(T{})`
+
+	a, err := pkgFor("a", asrc, nil)
+	if err != nil {
+		t.Fatalf("package %s failed to typecheck: %v", a.Name(), err)
+	}
+
+	bast := mustParse(t, bsrc)
+	conf := Config{Importer: importHelper{a}}
+	b, err := conf.Check(bast.Name.Name, fset, []*ast.File{bast}, nil)
+	if err != nil {
+		t.Errorf("package %s failed to typecheck: %v", b.Name(), err)
+	}
+}
+
+type importHelper struct {
+	pkg *Package
+}
+
+func (h importHelper) Import(path string) (*Package, error) {
+	if path != h.pkg.Path() {
+		return nil, fmt.Errorf("got package path %q; want %q", path, h.pkg.Path())
+	}
+	return h.pkg, nil
+}
+
+// TestIssue34921 verifies that we don't update an imported type's underlying
+// type when resolving an underlying type. Specifically, when determining the
+// underlying type of b.T (which is the underlying type of a.T, which is int)
+// we must not set the underlying type of a.T again since that would lead to
+// a race condition if package b is imported elsewhere, in a package that is
+// concurrently type-checked.
+func TestIssue34921(t *testing.T) {
+	defer func() {
+		if r := recover(); r != nil {
+			t.Error(r)
+		}
+	}()
+
+	var sources = []string{
+		`package a; type T int`,
+		`package b; import "a"; type T a.T`,
+	}
+
+	var pkg *Package
+	for _, src := range sources {
+		f := mustParse(t, src)
+		conf := Config{Importer: importHelper{pkg}}
+		res, err := conf.Check(f.Name.Name, fset, []*ast.File{f}, nil)
+		if err != nil {
+			t.Errorf("%q failed to typecheck: %v", src, err)
+		}
+		pkg = res // res is imported by the next package in this test
+	}
+}
diff --git a/libgo/go/go/types/lookup.go b/libgo/go/go/types/lookup.go
index e6764f4..648e100 100644
--- a/libgo/go/go/types/lookup.go
+++ b/libgo/go/go/types/lookup.go
@@ -6,11 +6,6 @@
 
 package types
 
-// Internal use of LookupFieldOrMethod: If the obj result is a method
-// associated with a concrete (non-interface) type, the method's signature
-// may not be fully set up. Call Checker.objDecl(obj, nil) before accessing
-// the method's type.
-
 // LookupFieldOrMethod looks up a field or method with given package and name
 // in T and returns the corresponding *Var or *Func, an index sequence, and a
 // bool indicating if there were any pointer indirections on the path to the
@@ -38,6 +33,19 @@
 //	the method's formal receiver base type, nor was the receiver addressable.
 //
 func LookupFieldOrMethod(T Type, addressable bool, pkg *Package, name string) (obj Object, index []int, indirect bool) {
+	return (*Checker)(nil).LookupFieldOrMethod(T, addressable, pkg, name)
+}
+
+// Internal use of Checker.LookupFieldOrMethod: If the obj result is a method
+// associated with a concrete (non-interface) type, the method's signature
+// may not be fully set up. Call Checker.objDecl(obj, nil) before accessing
+// the method's type.
+// TODO(gri) Now that we provide the *Checker, we can probably remove this
+// caveat by calling Checker.objDecl from LookupFieldOrMethod. Investigate.
+
+// LookupFieldOrMethod is like the external version but completes interfaces
+// as necessary.
+func (check *Checker) LookupFieldOrMethod(T Type, addressable bool, pkg *Package, name string) (obj Object, index []int, indirect bool) {
 	// Methods cannot be associated to a named pointer type
 	// (spec: "The type denoted by T is called the receiver base type;
 	// it must not be a pointer or interface type and it must be declared
@@ -47,7 +55,7 @@
 	// not have found it for T (see also issue 8590).
 	if t, _ := T.(*Named); t != nil {
 		if p, _ := t.underlying.(*Pointer); p != nil {
-			obj, index, indirect = lookupFieldOrMethod(p, false, pkg, name)
+			obj, index, indirect = check.lookupFieldOrMethod(p, false, pkg, name)
 			if _, ok := obj.(*Func); ok {
 				return nil, nil, false
 			}
@@ -55,7 +63,7 @@
 		}
 	}
 
-	return lookupFieldOrMethod(T, addressable, pkg, name)
+	return check.lookupFieldOrMethod(T, addressable, pkg, name)
 }
 
 // TODO(gri) The named type consolidation and seen maps below must be
@@ -63,7 +71,8 @@
 //           types always have only one representation (even when imported
 //           indirectly via different packages.)
 
-func lookupFieldOrMethod(T Type, addressable bool, pkg *Package, name string) (obj Object, index []int, indirect bool) {
+// lookupFieldOrMethod should only be called by LookupFieldOrMethod and missingMethod.
+func (check *Checker) lookupFieldOrMethod(T Type, addressable bool, pkg *Package, name string) (obj Object, index []int, indirect bool) {
 	// WARNING: The code in this function is extremely subtle - do not modify casually!
 	//          This function and NewMethodSet should be kept in sync.
 
@@ -166,6 +175,7 @@
 			case *Interface:
 				// look for a matching method
 				// TODO(gri) t.allMethods is sorted - use binary search
+				check.completeInterface(t)
 				if i, m := lookupMethod(t.allMethods, pkg, name); m != nil {
 					assert(m.typ != nil)
 					index = concat(e.index, i)
@@ -190,7 +200,7 @@
 			return
 		}
 
-		current = consolidateMultiples(next)
+		current = check.consolidateMultiples(next)
 	}
 
 	return nil, nil, false // not found
@@ -207,7 +217,7 @@
 // consolidateMultiples collects multiple list entries with the same type
 // into a single entry marked as containing multiples. The result is the
 // consolidated list.
-func consolidateMultiples(list []embeddedType) []embeddedType {
+func (check *Checker) consolidateMultiples(list []embeddedType) []embeddedType {
 	if len(list) <= 1 {
 		return list // at most one entry - nothing to do
 	}
@@ -215,7 +225,7 @@
 	n := 0                     // number of entries w/ unique type
 	prev := make(map[Type]int) // index at which type was previously seen
 	for _, e := range list {
-		if i, found := lookupType(prev, e.typ); found {
+		if i, found := check.lookupType(prev, e.typ); found {
 			list[i].multiples = true
 			// ignore this entry
 		} else {
@@ -227,14 +237,14 @@
 	return list[:n]
 }
 
-func lookupType(m map[Type]int, typ Type) (int, bool) {
+func (check *Checker) lookupType(m map[Type]int, typ Type) (int, bool) {
 	// fast path: maybe the types are equal
 	if i, found := m[typ]; found {
 		return i, true
 	}
 
 	for t, i := range m {
-		if Identical(t, typ) {
+		if check.identical(t, typ) {
 			return i, true
 		}
 	}
@@ -261,14 +271,15 @@
 // an exported API call (such as MissingMethod), i.e., when all
 // methods have been type-checked.
 func (check *Checker) missingMethod(V Type, T *Interface, static bool) (method *Func, wrongType bool) {
+	check.completeInterface(T)
+
 	// fast path for common case
 	if T.Empty() {
 		return
 	}
 
-	// TODO(gri) Consider using method sets here. Might be more efficient.
-
 	if ityp, _ := V.Underlying().(*Interface); ityp != nil {
+		check.completeInterface(ityp)
 		// TODO(gri) allMethods is sorted - can do this more efficiently
 		for _, m := range T.allMethods {
 			_, obj := lookupMethod(ityp.allMethods, m.pkg, m.name)
@@ -277,7 +288,7 @@
 				if static {
 					return m, false
 				}
-			case !Identical(obj.Type(), m.typ):
+			case !check.identical(obj.Type(), m.typ):
 				return m, true
 			}
 		}
@@ -286,7 +297,7 @@
 
 	// A concrete type implements T if it implements all methods of T.
 	for _, m := range T.allMethods {
-		obj, _, _ := lookupFieldOrMethod(V, false, m.pkg, m.name)
+		obj, _, _ := check.lookupFieldOrMethod(V, false, m.pkg, m.name)
 
 		// we must have a method (not a field of matching function type)
 		f, _ := obj.(*Func)
@@ -299,7 +310,7 @@
 			check.objDecl(f, nil)
 		}
 
-		if !Identical(f.typ, m.typ) {
+		if !check.identical(f.typ, m.typ) {
 			return m, true
 		}
 	}
diff --git a/libgo/go/go/types/methodset.go b/libgo/go/go/types/methodset.go
index 619c448..a236fe2 100644
--- a/libgo/go/go/types/methodset.go
+++ b/libgo/go/go/types/methodset.go
@@ -62,6 +62,11 @@
 // Shared empty method set.
 var emptyMethodSet MethodSet
 
+// Note: NewMethodSet is intended for external use only as it
+//       requires interfaces to be complete. If may be used
+//       internally if LookupFieldOrMethod completed the same
+//       interfaces beforehand.
+
 // NewMethodSet returns the method set for the given type T.
 // It always returns a non-nil method set, even if it is empty.
 func NewMethodSet(T Type) *MethodSet {
@@ -175,7 +180,12 @@
 			}
 		}
 
-		current = consolidateMultiples(next)
+		// It's ok to call consolidateMultiples with a nil *Checker because
+		// MethodSets are not used internally (outside debug mode). When used
+		// externally, interfaces are expected to be completed and then we do
+		// not need a *Checker to complete them when (indirectly) calling
+		// Checker.identical via consolidateMultiples.
+		current = (*Checker)(nil).consolidateMultiples(next)
 	}
 
 	if len(base) == 0 {
diff --git a/libgo/go/go/types/object_test.go b/libgo/go/go/types/object_test.go
index 88cd875..2b6057b 100644
--- a/libgo/go/go/types/object_test.go
+++ b/libgo/go/go/types/object_test.go
@@ -4,7 +4,12 @@
 
 package types
 
-import "testing"
+import (
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"testing"
+)
 
 func TestIsAlias(t *testing.T) {
 	check := func(obj *TypeName, want bool) {
@@ -42,3 +47,40 @@
 		check(test.name, test.alias)
 	}
 }
+
+// TestEmbeddedMethod checks that an embedded method is represented by
+// the same Func Object as the original method. See also issue #34421.
+func TestEmbeddedMethod(t *testing.T) {
+	const src = `package p; type I interface { error }`
+
+	// type-check src
+	fset := token.NewFileSet()
+	f, err := parser.ParseFile(fset, "", src, 0)
+	if err != nil {
+		t.Fatalf("parse failed: %s", err)
+	}
+	var conf Config
+	pkg, err := conf.Check(f.Name.Name, fset, []*ast.File{f}, nil)
+	if err != nil {
+		t.Fatalf("typecheck failed: %s", err)
+	}
+
+	// get original error.Error method
+	eface := Universe.Lookup("error")
+	orig, _, _ := LookupFieldOrMethod(eface.Type(), false, nil, "Error")
+	if orig == nil {
+		t.Fatalf("original error.Error not found")
+	}
+
+	// get embedded error.Error method
+	iface := pkg.Scope().Lookup("I")
+	embed, _, _ := LookupFieldOrMethod(iface.Type(), false, nil, "Error")
+	if embed == nil {
+		t.Fatalf("embedded error.Error not found")
+	}
+
+	// original and embedded Error object should be identical
+	if orig != embed {
+		t.Fatalf("%s (%p) != %s (%p)", orig, orig, embed, embed)
+	}
+}
diff --git a/libgo/go/go/types/operand.go b/libgo/go/go/types/operand.go
index 97ca6c6..1259f44 100644
--- a/libgo/go/go/types/operand.go
+++ b/libgo/go/go/types/operand.go
@@ -211,7 +211,7 @@
 	V := x.typ
 
 	// x's type is identical to T
-	if Identical(V, T) {
+	if check.identical(V, T) {
 		return true
 	}
 
@@ -236,6 +236,7 @@
 				return Vb.kind == UntypedBool && isBoolean(Tu)
 			}
 		case *Interface:
+			check.completeInterface(t)
 			return x.isNil() || t.Empty()
 		case *Pointer, *Signature, *Slice, *Map, *Chan:
 			return x.isNil()
@@ -245,7 +246,7 @@
 
 	// x's type V and T have identical underlying types
 	// and at least one of V or T is not a named type
-	if Identical(Vu, Tu) && (!isNamed(V) || !isNamed(T)) {
+	if check.identical(Vu, Tu) && (!isNamed(V) || !isNamed(T)) {
 		return true
 	}
 
@@ -268,7 +269,7 @@
 	// type, x's type V and T have identical element types,
 	// and at least one of V or T is not a named type
 	if Vc, ok := Vu.(*Chan); ok && Vc.dir == SendRecv {
-		if Tc, ok := Tu.(*Chan); ok && Identical(Vc.elem, Tc.elem) {
+		if Tc, ok := Tu.(*Chan); ok && check.identical(Vc.elem, Tc.elem) {
 			return !isNamed(V) || !isNamed(T)
 		}
 	}
diff --git a/libgo/go/go/types/predicates.go b/libgo/go/go/types/predicates.go
index 46ad4e2..057908e 100644
--- a/libgo/go/go/types/predicates.go
+++ b/libgo/go/go/types/predicates.go
@@ -110,16 +110,16 @@
 	return false
 }
 
-// Identical reports whether x and y are identical types.
+// identical reports whether x and y are identical types.
 // Receivers of Signature types are ignored.
-func Identical(x, y Type) bool {
-	return identical(x, y, true, nil)
+func (check *Checker) identical(x, y Type) bool {
+	return check.identical0(x, y, true, nil)
 }
 
-// IdenticalIgnoreTags reports whether x and y are identical types if tags are ignored.
+// identicalIgnoreTags reports whether x and y are identical types if tags are ignored.
 // Receivers of Signature types are ignored.
-func IdenticalIgnoreTags(x, y Type) bool {
-	return identical(x, y, false, nil)
+func (check *Checker) identicalIgnoreTags(x, y Type) bool {
+	return check.identical0(x, y, false, nil)
 }
 
 // An ifacePair is a node in a stack of interface type pairs compared for identity.
@@ -132,7 +132,7 @@
 	return p.x == q.x && p.y == q.y || p.x == q.y && p.y == q.x
 }
 
-func identical(x, y Type, cmpTags bool, p *ifacePair) bool {
+func (check *Checker) identical0(x, y Type, cmpTags bool, p *ifacePair) bool {
 	if x == y {
 		return true
 	}
@@ -152,13 +152,13 @@
 		if y, ok := y.(*Array); ok {
 			// If one or both array lengths are unknown (< 0) due to some error,
 			// assume they are the same to avoid spurious follow-on errors.
-			return (x.len < 0 || y.len < 0 || x.len == y.len) && identical(x.elem, y.elem, cmpTags, p)
+			return (x.len < 0 || y.len < 0 || x.len == y.len) && check.identical0(x.elem, y.elem, cmpTags, p)
 		}
 
 	case *Slice:
 		// Two slice types are identical if they have identical element types.
 		if y, ok := y.(*Slice); ok {
-			return identical(x.elem, y.elem, cmpTags, p)
+			return check.identical0(x.elem, y.elem, cmpTags, p)
 		}
 
 	case *Struct:
@@ -173,7 +173,7 @@
 					if f.embedded != g.embedded ||
 						cmpTags && x.Tag(i) != y.Tag(i) ||
 						!f.sameId(g.pkg, g.name) ||
-						!identical(f.typ, g.typ, cmpTags, p) {
+						!check.identical0(f.typ, g.typ, cmpTags, p) {
 						return false
 					}
 				}
@@ -184,7 +184,7 @@
 	case *Pointer:
 		// Two pointer types are identical if they have identical base types.
 		if y, ok := y.(*Pointer); ok {
-			return identical(x.base, y.base, cmpTags, p)
+			return check.identical0(x.base, y.base, cmpTags, p)
 		}
 
 	case *Tuple:
@@ -195,7 +195,7 @@
 				if x != nil {
 					for i, v := range x.vars {
 						w := y.vars[i]
-						if !identical(v.typ, w.typ, cmpTags, p) {
+						if !check.identical0(v.typ, w.typ, cmpTags, p) {
 							return false
 						}
 					}
@@ -211,8 +211,8 @@
 		// names are not required to match.
 		if y, ok := y.(*Signature); ok {
 			return x.variadic == y.variadic &&
-				identical(x.params, y.params, cmpTags, p) &&
-				identical(x.results, y.results, cmpTags, p)
+				check.identical0(x.params, y.params, cmpTags, p) &&
+				check.identical0(x.results, y.results, cmpTags, p)
 		}
 
 	case *Interface:
@@ -220,6 +220,14 @@
 		// the same names and identical function types. Lower-case method names from
 		// different packages are always different. The order of the methods is irrelevant.
 		if y, ok := y.(*Interface); ok {
+			// If identical0 is called (indirectly) via an external API entry point
+			// (such as Identical, IdenticalIgnoreTags, etc.), check is nil. But in
+			// that case, interfaces are expected to be complete and lazy completion
+			// here is not needed.
+			if check != nil {
+				check.completeInterface(x)
+				check.completeInterface(y)
+			}
 			a := x.allMethods
 			b := y.allMethods
 			if len(a) == len(b) {
@@ -258,7 +266,7 @@
 				}
 				for i, f := range a {
 					g := b[i]
-					if f.Id() != g.Id() || !identical(f.typ, g.typ, cmpTags, q) {
+					if f.Id() != g.Id() || !check.identical0(f.typ, g.typ, cmpTags, q) {
 						return false
 					}
 				}
@@ -269,14 +277,14 @@
 	case *Map:
 		// Two map types are identical if they have identical key and value types.
 		if y, ok := y.(*Map); ok {
-			return identical(x.key, y.key, cmpTags, p) && identical(x.elem, y.elem, cmpTags, p)
+			return check.identical0(x.key, y.key, cmpTags, p) && check.identical0(x.elem, y.elem, cmpTags, p)
 		}
 
 	case *Chan:
 		// Two channel types are identical if they have identical value types
 		// and the same direction.
 		if y, ok := y.(*Chan); ok {
-			return x.dir == y.dir && identical(x.elem, y.elem, cmpTags, p)
+			return x.dir == y.dir && check.identical0(x.elem, y.elem, cmpTags, p)
 		}
 
 	case *Named:
diff --git a/libgo/go/go/types/resolver.go b/libgo/go/go/types/resolver.go
index 417e4e7..839d076 100644
--- a/libgo/go/go/types/resolver.go
+++ b/libgo/go/go/types/resolver.go
@@ -25,12 +25,9 @@
 	alias bool          // type alias declaration
 
 	// The deps field tracks initialization expression dependencies.
-	deps objSet // lazily initialized
+	deps map[Object]bool // lazily initialized
 }
 
-// An objSet is simply a set of objects.
-type objSet map[Object]bool
-
 // hasInitializer reports whether the declared object has an initialization
 // expression or function body.
 func (d *declInfo) hasInitializer() bool {
@@ -41,7 +38,7 @@
 func (d *declInfo) addDep(obj Object) {
 	m := d.deps
 	if m == nil {
-		m = make(objSet)
+		m = make(map[Object]bool)
 		d.deps = m
 	}
 	m[obj] = true
@@ -191,6 +188,7 @@
 	// package should be complete or marked fake, but be cautious
 	if imp.complete || imp.fake {
 		check.impMap[key] = imp
+		check.pkgCnt[imp.name]++
 		return imp
 	}
 
@@ -482,7 +480,7 @@
 	// non-alias type name. If we encounter anything but pointer types or
 	// parentheses we're done. If we encounter more than one pointer type
 	// we're done.
-	var path []*TypeName
+	var seen map[*TypeName]bool
 	for {
 		typ = unparen(typ)
 
@@ -496,7 +494,7 @@
 			typ = unparen(pexpr.X) // continue with pointer base type
 		}
 
-		// typ must be the name
+		// typ must be a name
 		name, _ := typ.(*ast.Ident)
 		if name == nil {
 			return false, nil
@@ -516,7 +514,7 @@
 		}
 
 		// ... which we have not seen before
-		if check.cycle(tname, path, false) {
+		if seen[tname] {
 			return false, nil
 		}
 
@@ -529,28 +527,11 @@
 
 		// otherwise, continue resolving
 		typ = tdecl.typ
-		path = append(path, tname)
-	}
-}
-
-// cycle reports whether obj appears in path or not.
-// If it does, and report is set, it also reports a cycle error.
-func (check *Checker) cycle(obj *TypeName, path []*TypeName, report bool) bool {
-	// (it's ok to iterate forward because each named type appears at most once in path)
-	for i, prev := range path {
-		if prev == obj {
-			if report {
-				check.errorf(obj.pos, "illegal cycle in declaration of %s", obj.name)
-				// print cycle
-				for _, obj := range path[i:] {
-					check.errorf(obj.Pos(), "\t%s refers to", obj.Name()) // secondary error, \t indented
-				}
-				check.errorf(obj.Pos(), "\t%s", obj.Name())
-			}
-			return true
+		if seen == nil {
+			seen = make(map[*TypeName]bool)
 		}
+		seen[tname] = true
 	}
-	return false
 }
 
 // packageObjects typechecks all package objects, but not function bodies.
@@ -607,16 +588,6 @@
 func (a inSourceOrder) Less(i, j int) bool { return a[i].order() < a[j].order() }
 func (a inSourceOrder) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
 
-// processDelayed processes all delayed actions pushed after top.
-func (check *Checker) processDelayed(top int) {
-	for len(check.delayed) > top {
-		i := len(check.delayed) - 1
-		f := check.delayed[i]
-		check.delayed = check.delayed[:i]
-		f() // may append to check.delayed
-	}
-}
-
 // unusedImports checks for unused imports.
 func (check *Checker) unusedImports() {
 	// if function bodies are not checked, packages' uses are likely missing - don't check
diff --git a/libgo/go/go/types/scope.go b/libgo/go/go/types/scope.go
index 409b468..8c9d9ab 100644
--- a/libgo/go/go/types/scope.go
+++ b/libgo/go/go/types/scope.go
@@ -77,7 +77,7 @@
 //
 // Note that obj.Parent() may be different from the returned scope if the
 // object was inserted into the scope and already had a parent at that
-// time (see Insert, below). This can only happen for dot-imported objects
+// time (see Insert). This can only happen for dot-imported objects
 // whose scope is the scope of the package that exported them.
 func (s *Scope) LookupParent(name string, pos token.Pos) (*Scope, Object) {
 	for ; s != nil; s = s.parent {
diff --git a/libgo/go/go/types/selection.go b/libgo/go/go/types/selection.go
index 124e0d3..6ec69d2 100644
--- a/libgo/go/go/types/selection.go
+++ b/libgo/go/go/types/selection.go
@@ -31,11 +31,11 @@
 //
 // the following relations exist:
 //
-//	Selector    Kind          Recv    Obj    Type               Index     Indirect
+//	Selector    Kind          Recv    Obj    Type       Index     Indirect
 //
-//	p.x         FieldVal      T       x      int                {0}       true
-//	p.m         MethodVal     *T      m      func (e *T) m()    {1, 0}    true
-//	T.m         MethodExpr    T       m      func m(_ T)        {1, 0}    false
+//	p.x         FieldVal      T       x      int        {0}       true
+//	p.m         MethodVal     *T      m      func()     {1, 0}    true
+//	T.m         MethodExpr    T       m      func(T)    {1, 0}    false
 //
 type Selection struct {
 	kind     SelectionKind
diff --git a/libgo/go/go/types/stdlib_test.go b/libgo/go/go/types/stdlib_test.go
index dc18987..4257bd9 100644
--- a/libgo/go/go/types/stdlib_test.go
+++ b/libgo/go/go/types/stdlib_test.go
@@ -186,6 +186,8 @@
 		"issue25507.go",  // go/types does not have constraints on stack size
 		"issue20780.go",  // go/types does not have constraints on stack size
 		"issue31747.go",  // go/types does not have constraints on language level (-lang=go1.12) (see #31793)
+		"issue34329.go",  // go/types does not have constraints on language level (-lang=go1.13) (see #31793)
+		"bug251.go",      // issue #34333 which was exposed with fix for #34151
 	)
 }
 
diff --git a/libgo/go/go/types/stmt.go b/libgo/go/go/types/stmt.go
index abd9d05..c1593bb 100644
--- a/libgo/go/go/types/stmt.go
+++ b/libgo/go/go/types/stmt.go
@@ -249,7 +249,7 @@
 			// look for duplicate types for a given value
 			// (quadratic algorithm, but these lists tend to be very short)
 			for _, vt := range seen[val] {
-				if Identical(v.typ, vt.typ) {
+				if check.identical(v.typ, vt.typ) {
 					check.errorf(v.pos(), "duplicate case %s in expression switch", &v)
 					check.error(vt.pos, "\tprevious case") // secondary error, \t indented
 					continue L
@@ -270,7 +270,7 @@
 		// look for duplicate types
 		// (quadratic algorithm, but type switches tend to be reasonably small)
 		for t, pos := range seen {
-			if T == nil && t == nil || T != nil && t != nil && Identical(T, t) {
+			if T == nil && t == nil || T != nil && t != nil && check.identical(T, t) {
 				// talk about "case" rather than "type" because of nil case
 				Ts := "nil"
 				if T != nil {
diff --git a/libgo/go/go/types/testdata/const0.src b/libgo/go/go/types/testdata/const0.src
index 19fb1bd..adbbf28 100644
--- a/libgo/go/go/types/testdata/const0.src
+++ b/libgo/go/go/types/testdata/const0.src
@@ -308,6 +308,8 @@
 			_ = unsafe.Sizeof([iota-1]int{} == x) // assert types are equal
 			_ = unsafe.Sizeof([Two]int{} == x)    // assert types are equal
 		)
+		var z [iota]int                           // [2]int
+		_ = unsafe.Sizeof([2]int{} == z)          // assert types are equal
 	})
 	three = iota // the sequence continues
 )
@@ -334,3 +336,15 @@
 	1 * 1e9,
 	5 * 1e9,
 }
+
+const _ = unsafe.Sizeof(func() {
+	const _ = 0
+	_ = iota
+
+	const (
+	   zero = iota
+	   one
+	)
+	assert(one == 1)
+	assert(iota == 0)
+})
diff --git a/libgo/go/go/types/testdata/cycles.src b/libgo/go/go/types/testdata/cycles.src
index a9af46a..b2ee8ec 100644
--- a/libgo/go/go/types/testdata/cycles.src
+++ b/libgo/go/go/types/testdata/cycles.src
@@ -71,6 +71,15 @@
 	C0 chan C0
 )
 
+// test case for issue #34771
+type (
+	AA /* ERROR cycle */ B
+	B C
+	C [10]D
+	D E
+	E AA
+)
+
 func _() {
 	type (
 		t1 /* ERROR cycle */ t1
@@ -147,7 +156,7 @@
 // test cases for issue 18643
 // (type cycle detection when non-type expressions are involved)
 type (
-	T14 /* ERROR cycle */ [len(T14{})]int
+	T14 [len(T14 /* ERROR cycle */ {})]int
 	T15 [][len(T15 /* ERROR cycle */ {})]int
 	T16 map[[len(T16 /* ERROR cycle */ {1:2})]int]int
 	T17 map[int][len(T17 /* ERROR cycle */ {1:2})]int
diff --git a/libgo/go/go/types/testdata/cycles2.src b/libgo/go/go/types/testdata/cycles2.src
index fd0df4b..5fd9e83 100644
--- a/libgo/go/go/types/testdata/cycles2.src
+++ b/libgo/go/go/types/testdata/cycles2.src
@@ -22,13 +22,13 @@
 
 	t.f(t)
 	t.f(u)
-	
+
 	u.f(t)
 	u.f(u)
 }
 
 
-// Test case for issue 6589.
+// Test case for issues #6589, #33656.
 
 type A interface {
 	a() interface {
@@ -45,26 +45,28 @@
 type AB interface {
 	a() interface {
 		A
-		B /* ERROR a redeclared */
+		B
 	}
 	b() interface {
 		A
-		B /* ERROR a redeclared */
+		B
 	}
 }
 
 var x AB
 var y interface {
 	A
-	B /* ERROR a redeclared */
+	B
 }
+
+// TODO(gri) This should be a valid compare. See #33656.
 var _ = x /* ERROR cannot compare */ == y
 
 
 // Test case for issue 6638.
 
 type T interface {
-	m() [T /* ERROR no value */ (nil).m()[0]]int
+	m() [T(nil).m /* ERROR undefined */ ()[0]]int
 }
 
 // Variations of this test case.
diff --git a/libgo/go/go/types/testdata/cycles5.src b/libgo/go/go/types/testdata/cycles5.src
new file mode 100644
index 0000000..397adcc
--- /dev/null
+++ b/libgo/go/go/types/testdata/cycles5.src
@@ -0,0 +1,200 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package p
+
+import "unsafe"
+
+// test case from issue #18395
+
+type (
+	A interface { B }
+	B interface { C }
+	C interface { D; F() A }
+	D interface { G() B }
+)
+
+var _ = A(nil).G // G must be found
+
+
+// test case from issue #21804
+
+type sourceBridge interface {
+	listVersions() ([]Version, error)
+}
+
+type Constraint interface {
+	copyTo(*ConstraintMsg)
+}
+
+type ConstraintMsg struct{}
+
+func (m *ConstraintMsg) asUnpairedVersion() UnpairedVersion {
+	return nil
+}
+
+type Version interface {
+	Constraint
+}
+
+type UnpairedVersion interface {
+	Version
+}
+
+var _ Constraint = UnpairedVersion(nil)
+
+
+// derived test case from issue #21804
+
+type (
+	_ interface{ m(B1) }
+	A1 interface{ a(D1) }
+	B1 interface{ A1 }
+	C1 interface{ B1 }
+	D1 interface{ C1 }
+)
+
+var _ A1 = C1(nil)
+
+
+// derived test case from issue #22701
+
+func F(x I4) interface{} {
+	return x.Method()
+}
+
+type Unused interface {
+	RefersToI1(a I1)
+}
+
+type I1 interface {
+	I2
+	I3
+}
+
+type I2 interface {
+	RefersToI4() I4
+}
+
+type I3 interface {
+	Method() interface{}
+}
+
+type I4 interface {
+	I1
+}
+
+
+// check embedding of error interface
+
+type Error interface{ error }
+
+var err Error
+var _ = err.Error()
+
+
+// more esoteric cases
+
+type (
+	T1 interface { T2 }
+	T2 /* ERROR cycle */ T2
+)
+
+type (
+	T3 interface { T4 }
+	T4 /* ERROR cycle */ T5
+	T5 = T6
+	T6 = T7
+	T7 = T4
+)
+
+
+// arbitrary code may appear inside an interface
+
+const n = unsafe.Sizeof(func(){})
+
+type I interface {
+	m([unsafe.Sizeof(func() { I.m(nil, [n]byte{}) })]byte)
+}
+
+
+// test cases for varias alias cycles
+
+type T10 /* ERROR cycle */ = *T10                 // issue #25141
+type T11 /* ERROR cycle */ = interface{ f(T11) }  // issue #23139
+
+// issue #18640
+type (
+	aa = bb
+	bb struct {
+		*aa
+	}
+)
+
+type (
+	a struct{ *b }
+	b = c
+	c struct{ *b }
+)
+
+// issue #24939
+type (
+	_ interface {
+		M(P)
+	}
+
+	M interface {
+		F() P
+	}
+
+	P = interface {
+		I() M
+	}
+)
+
+// issue #8699
+type T12 /* ERROR cycle */ [len(a12)]int
+var a12 = makeArray()
+func makeArray() (res T12) { return }
+
+// issue #20770
+var r /* ERROR cycle */ = newReader()
+func newReader() r
+
+// variations of the theme of #8699 and #20770
+var arr /* ERROR cycle */ = f()
+func f() [len(arr)]int
+
+// issue #25790
+func ff(ff /* ERROR not a type */ )
+func gg((gg /* ERROR not a type */ ))
+
+type T13 /* ERROR cycle */ [len(b13)]int
+var b13 T13
+
+func g1() [unsafe.Sizeof(g1)]int
+func g2() [unsafe.Sizeof(x2)]int
+var x2 = g2
+
+// verify that we get the correct sizes for the functions above
+// (note: assert is statically evaluated in go/types test mode)
+func init() {
+	assert(unsafe.Sizeof(g1) == 8)
+	assert(unsafe.Sizeof(x2) == 8)
+}
+
+func h() [h /* ERROR no value */ ()[0]]int { panic(0) }
+
+var c14 /* ERROR cycle */ T14
+type T14 [uintptr(unsafe.Sizeof(&c14))]byte
+
+// issue #34333
+type T15 /* ERROR cycle */ struct {
+	f func() T16
+	b T16
+}
+
+type T16 struct {
+	T15
+}
\ No newline at end of file
diff --git a/libgo/go/go/types/testdata/decls0.src b/libgo/go/go/types/testdata/decls0.src
index 56adbbf..5501b65 100644
--- a/libgo/go/go/types/testdata/decls0.src
+++ b/libgo/go/go/types/testdata/decls0.src
@@ -72,10 +72,6 @@
 	a /* ERROR "illegal cycle" */ a
 	a /* ERROR "redeclared" */ int
 
-	// where the cycle error appears depends on the
-	// order in which declarations are processed
-	// (which depends on the order in which a map
-	// is iterated through)
 	b /* ERROR "illegal cycle" */ c
 	c d
 	d e
@@ -139,7 +135,7 @@
 	}
 	I3 interface {
 		m1()
-		m1 /* ERROR "redeclared" */ ()
+		m1 /* ERROR "duplicate method" */ ()
 	}
 	I4 interface {
 		m1(x, y, x /* ERROR "redeclared" */ float32)
diff --git a/libgo/go/go/types/testdata/decls1.src b/libgo/go/go/types/testdata/decls1.src
index 0740546..e6beb78 100644
--- a/libgo/go/go/types/testdata/decls1.src
+++ b/libgo/go/go/types/testdata/decls1.src
@@ -43,7 +43,7 @@
 	s11 = &v
 	s12 = -(u + *t11) / *&v
 	s13 = a /* ERROR "shifted operand" */ << d
-	s14 = i << j /* ERROR "must be unsigned" */
+	s14 = i << j
 	s18 = math.Pi * 10.0
 	s19 = s1 /* ERROR "cannot call" */ ()
  	s20 = f0 /* ERROR "no value" */ ()
@@ -62,7 +62,7 @@
 	t11 *complex64 = &v
 	t12 complex64 = -(u + *t11) / *&v
 	t13 int = a /* ERROR "shifted operand" */ << d
-	t14 int = i << j /* ERROR "must be unsigned" */
+	t14 int = i << j
 	t15 math /* ERROR "not in selector" */
 	t16 math.xxx /* ERROR "not declared" */
 	t17 math /* ERROR "not a type" */ .Pi
diff --git a/libgo/go/go/types/testdata/decls4.src b/libgo/go/go/types/testdata/decls4.src
new file mode 100644
index 0000000..ab7c679
--- /dev/null
+++ b/libgo/go/go/types/testdata/decls4.src
@@ -0,0 +1,199 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// type aliases
+
+package decls4
+
+type (
+	T0 [10]int
+	T1 []byte
+	T2 struct {
+		x int
+	}
+	T3 interface{
+		m() T2
+	}
+	T4 func(int, T0) chan T2
+)
+
+type (
+	Ai = int
+	A0 = T0
+	A1 = T1
+	A2 = T2
+	A3 = T3
+	A4 = T4
+
+	A10 = [10]int
+	A11 = []byte
+	A12 = struct {
+		x int
+	}
+	A13 = interface{
+		m() A2
+	}
+	A14 = func(int, A0) chan A2
+)
+
+// check assignment compatibility due to equality of types
+var (
+	xi_ int
+	ai Ai = xi_
+
+	x0 T0
+	a0 A0 = x0
+
+	x1 T1
+	a1 A1 = x1
+
+	x2 T2
+	a2 A2 = x2
+
+	x3 T3
+	a3 A3 = x3
+
+	x4 T4
+	a4 A4 = x4
+)
+
+// alias receiver types
+func (Ai /* ERROR "invalid receiver" */) m1() {}
+func (T0) m1() {}
+func (A0) m1 /* ERROR already declared */ () {}
+func (A0) m2 () {}
+func (A3 /* ERROR invalid receiver */ ) m1 () {}
+func (A10 /* ERROR invalid receiver */ ) m1() {}
+
+// x0 has methods m1, m2 declared via receiver type names T0 and A0
+var _ interface{ m1(); m2() } = x0
+
+// alias receiver types (test case for issue #23042)
+type T struct{}
+
+var (
+	_ = T.m
+	_ = T{}.m
+	_ interface{m()} = T{}
+)
+
+var (
+	_ = T.n
+	_ = T{}.n
+	_ interface{m(); n()} = T{}
+)
+
+type U = T
+func (U) m() {}
+
+// alias receiver types (long type declaration chains)
+type (
+	V0 = V1
+	V1 = (V2)
+	V2 = ((V3))
+	V3 = T
+)
+
+func (V0) m /* ERROR already declared */ () {}
+func (V1) n() {}
+
+// alias receiver types (invalid due to cycles)
+type (
+	W0 /* ERROR illegal cycle */ = W1
+	W1 = (W2)
+	W2 = ((W0))
+)
+
+func (W0) m() {} // no error expected (due to above cycle error)
+func (W1) n() {}
+
+// alias receiver types (invalid due to builtin underlying type)
+type (
+	B0 = B1
+	B1 = B2
+	B2 = int
+)
+
+func (B0 /* ERROR invalid receiver */ ) m() {}
+func (B1 /* ERROR invalid receiver */ ) n() {}
+
+// cycles
+type (
+	C2 /* ERROR illegal cycle */ = C2
+	C3 /* ERROR illegal cycle */ = C4
+	C4 = C3
+	C5 struct {
+		f *C6
+	}
+	C6 = C5
+	C7 /* ERROR illegal cycle */  struct {
+		f C8
+	}
+	C8 = C7
+)
+
+// embedded fields
+var (
+	s0 struct { T0 }
+	s1 struct { A0 } = s0 /* ERROR cannot use */ // embedded field names are different
+)
+
+// embedding and lookup of fields and methods
+func _(s struct{A0}) { s.A0 = x0 }
+
+type eX struct{xf int}
+
+func (eX) xm()
+
+type eY = struct{eX} // field/method set of eY includes xf, xm
+
+type eZ = *struct{eX} // field/method set of eZ includes xf, xm
+
+type eA struct {
+	eX // eX contributes xf, xm to eA
+}
+
+type eA2 struct {
+	*eX // *eX contributes xf, xm to eA
+}
+
+type eB struct {
+	eY // eY contributes xf, xm to eB
+}
+
+type eB2 struct {
+	*eY // *eY contributes xf, xm to eB
+}
+
+type eC struct {
+	eZ // eZ contributes xf, xm to eC
+}
+
+var (
+	_ = eA{}.xf
+	_ = eA{}.xm
+	_ = eA2{}.xf
+	_ = eA2{}.xm
+	_ = eB{}.xf
+	_ = eB{}.xm
+	_ = eB2{}.xf
+	_ = eB2{}.xm
+	_ = eC{}.xf
+	_ = eC{}.xm
+)
+
+// ambiguous selectors due to embedding via type aliases
+type eD struct {
+	eY
+	eZ
+}
+
+var (
+	_ = eD{}.xf /* ERROR ambiguous selector */
+	_ = eD{}.xm /* ERROR ambiguous selector */
+)
+
+var (
+	_ interface{ xm() } = eD /* ERROR missing method xm */ {}
+)
\ No newline at end of file
diff --git a/libgo/go/go/types/testdata/decls5.src b/libgo/go/go/types/testdata/decls5.src
new file mode 100644
index 0000000..88d3194
--- /dev/null
+++ b/libgo/go/go/types/testdata/decls5.src
@@ -0,0 +1,10 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+// declarations of main
+const _, main /* ERROR "cannot declare main" */ , _ = 0, 1, 2
+type main /* ERROR "cannot declare main" */ struct{}
+var _, main /* ERROR "cannot declare main" */ int
diff --git a/libgo/go/go/types/testdata/expr1.src b/libgo/go/go/types/testdata/expr1.src
index eaaf610..4ead815 100644
--- a/libgo/go/go/types/testdata/expr1.src
+++ b/libgo/go/go/types/testdata/expr1.src
@@ -35,8 +35,8 @@
 	x = x * y
 	x = x / y
 	x = x % y
-	x = x << y // ERROR must be unsigned integer
-	x = x >> y // ERROR must be unsigned integer
+	x = x << y
+	x = x >> y
 
 	z = z + 1
 	z = z + 1.0
@@ -46,8 +46,8 @@
 	z = z /* ERROR mismatched types */ * y
 	z = z /* ERROR mismatched types */ / y
 	z = z /* ERROR mismatched types */ % y
-	z = z << y // ERROR must be unsigned integer
-	z = z >> y // ERROR must be unsigned integer
+	z = z << y
+	z = z >> y
 }
 
 type myuint uint
diff --git a/libgo/go/go/types/testdata/issue23203a.src b/libgo/go/go/types/testdata/issue23203a.src
new file mode 100644
index 0000000..48cb588
--- /dev/null
+++ b/libgo/go/go/types/testdata/issue23203a.src
@@ -0,0 +1,14 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import "unsafe"
+
+type T struct{}
+
+func (T) m1()                         {}
+func (T) m2([unsafe.Sizeof(T.m1)]int) {}
+
+func main() {}
diff --git a/libgo/go/go/types/testdata/issue23203b.src b/libgo/go/go/types/testdata/issue23203b.src
new file mode 100644
index 0000000..638ec6c
--- /dev/null
+++ b/libgo/go/go/types/testdata/issue23203b.src
@@ -0,0 +1,14 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import "unsafe"
+
+type T struct{}
+
+func (T) m2([unsafe.Sizeof(T.m1)]int) {}
+func (T) m1()                         {}
+
+func main() {}
diff --git a/libgo/go/internal/syscall/unix/nonblocking_nacl.go b/libgo/go/go/types/testdata/issue25008a.src
similarity index 62%
rename from libgo/go/internal/syscall/unix/nonblocking_nacl.go
rename to libgo/go/go/types/testdata/issue25008a.src
index ff67c75..cf71ca1 100644
--- a/libgo/go/internal/syscall/unix/nonblocking_nacl.go
+++ b/libgo/go/go/types/testdata/issue25008a.src
@@ -2,8 +2,14 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package unix
+package p
 
-func IsNonblock(fd int) (nonblocking bool, err error) {
-	return false, nil
+import "io"
+
+type A interface {
+        io.Reader
+}
+
+func f(a A) {
+        a.Read(nil)
 }
diff --git a/libgo/go/internal/cpu/cpu_amd64p32.go b/libgo/go/go/types/testdata/issue25008b.src
similarity index 80%
rename from libgo/go/internal/cpu/cpu_amd64p32.go
rename to libgo/go/go/types/testdata/issue25008b.src
index 177b14e..f132b7f 100644
--- a/libgo/go/internal/cpu/cpu_amd64p32.go
+++ b/libgo/go/go/types/testdata/issue25008b.src
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package cpu
+package p
 
-const GOARCH = "amd64p32"
+type B interface {
+    A
+}
diff --git a/libgo/go/net/error_nacl.go b/libgo/go/go/types/testdata/issue26390.src
similarity index 66%
rename from libgo/go/net/error_nacl.go
rename to libgo/go/go/types/testdata/issue26390.src
index caad133..b8e67e9 100644
--- a/libgo/go/net/error_nacl.go
+++ b/libgo/go/go/types/testdata/issue26390.src
@@ -2,8 +2,10 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package net
+package issue26390
 
-func isConnError(err error) bool {
-	return false
-}
+type A = T
+
+func (t *T) m() *A { return t }
+
+type T struct{}
diff --git a/libgo/go/go/types/testdata/issue28251.src b/libgo/go/go/types/testdata/issue28251.src
new file mode 100644
index 0000000..a456f5c
--- /dev/null
+++ b/libgo/go/go/types/testdata/issue28251.src
@@ -0,0 +1,65 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This file contains test cases for various forms of
+// method receiver declarations, per the spec clarification
+// https://golang.org/cl/142757.
+
+package issue28251
+
+// test case from issue28251
+type T struct{}
+
+type T0 = *T
+
+func (T0) m() {}
+
+func _() { (&T{}).m() }
+
+// various alternative forms
+type (
+        T1 = (((T)))
+)
+
+func ((*(T1))) m1() {}
+func _() { (T{}).m2() }
+func _() { (&T{}).m2() }
+
+type (
+        T2 = (((T3)))
+        T3 = T
+)
+
+func (T2) m2() {}
+func _() { (T{}).m2() }
+func _() { (&T{}).m2() }
+
+type (
+        T4 = ((*(T5)))
+        T5 = T
+)
+
+func (T4) m4() {}
+func _() { (T{}).m4 /* ERROR m4 is not in method set of T */ () }
+func _() { (&T{}).m4() }
+
+type (
+        T6 = (((T7)))
+        T7 = (*(T8))
+        T8 = T
+)
+
+func (T6) m6() {}
+func _() { (T{}).m6 /* ERROR m6 is not in method set of T */ () }
+func _() { (&T{}).m6() }
+
+type (
+        T9 = *T10
+        T10 = *T11
+        T11 = T
+)
+
+func (T9 /* ERROR invalid receiver \*\*T */ ) m9() {}
+func _() { (T{}).m9 /* ERROR has no field or method m9 */ () }
+func _() { (&T{}).m9 /* ERROR has no field or method m9 */ () }
diff --git a/libgo/go/go/types/testdata/issue6977.src b/libgo/go/go/types/testdata/issue6977.src
new file mode 100644
index 0000000..8f4e9ba
--- /dev/null
+++ b/libgo/go/go/types/testdata/issue6977.src
@@ -0,0 +1,82 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package p
+
+import "io"
+
+// Alan's initial report.
+
+type I interface { f(); String() string }
+type J interface { g(); String() string }
+
+type IJ1 = interface { I; J }
+type IJ2 = interface { f(); g(); String() string }
+
+var _ = (*IJ1)(nil) == (*IJ2)(nil) // static assert that IJ1 and IJ2 are identical types
+
+// The canonical example.
+
+type ReadWriteCloser interface { io.ReadCloser; io.WriteCloser }
+
+// Some more cases.
+
+type M interface { m() }
+type M32 interface { m() int32 }
+type M64 interface { m() int64 }
+
+type U1 interface { m() }
+type U2 interface { m(); M }
+type U3 interface { M; m() }
+type U4 interface { M; M; M }
+type U5 interface { U1; U2; U3; U4 }
+
+type U6 interface { m(); m /* ERROR duplicate method */ () }
+type U7 interface { M32 /* ERROR duplicate method */ ; m() }
+type U8 interface { m(); M32 /* ERROR duplicate method */ }
+type U9 interface { M32; M64 /* ERROR duplicate method */ }
+
+// Verify that repeated embedding of the same interface(s)
+// eliminates duplicate methods early (rather than at the
+// end) to prevent exponential memory and time use.
+// Without early elimination, computing T29 may take dozens
+// of minutes.
+type (
+        T0 interface { m() }
+        T1 interface { T0; T0 }
+        T2 interface { T1; T1 }
+        T3 interface { T2; T2 }
+        T4 interface { T3; T3 }
+        T5 interface { T4; T4 }
+        T6 interface { T5; T5 }
+        T7 interface { T6; T6 }
+        T8 interface { T7; T7 }
+        T9 interface { T8; T8 }
+
+        T10 interface { T9; T9 }
+        T11 interface { T10; T10 }
+        T12 interface { T11; T11 }
+        T13 interface { T12; T12 }
+        T14 interface { T13; T13 }
+        T15 interface { T14; T14 }
+        T16 interface { T15; T15 }
+        T17 interface { T16; T16 }
+        T18 interface { T17; T17 }
+        T19 interface { T18; T18 }
+
+        T20 interface { T19; T19 }
+        T21 interface { T20; T20 }
+        T22 interface { T21; T21 }
+        T23 interface { T22; T22 }
+        T24 interface { T23; T23 }
+        T25 interface { T24; T24 }
+        T26 interface { T25; T25 }
+        T27 interface { T26; T26 }
+        T28 interface { T27; T27 }
+        T29 interface { T28; T28 }
+)
+
+// Verify that m is present.
+var x T29
+var _ = x.m
diff --git a/libgo/go/go/types/testdata/issues.src b/libgo/go/go/types/testdata/issues.src
index d020301..fe24079 100644
--- a/libgo/go/go/types/testdata/issues.src
+++ b/libgo/go/go/types/testdata/issues.src
@@ -4,8 +4,12 @@
 
 package issues
 
-import "fmt"
-import syn "cmd/compile/internal/syntax"
+import (
+	"fmt"
+	syn "cmd/compile/internal/syntax"
+	t1 "text/template"
+	t2 "html/template"
+)
 
 func issue7035() {
 	type T struct{ X int }
@@ -91,7 +95,7 @@
 		nosuchpkg /* ERROR undeclared name: nosuchpkg */ .Nosuchtype
 	}
 	type I interface {
-		I /* ERROR I\.m \(value of type func\(I\)\) is not a type */ .m
+		I.m /* ERROR no field or method m */
 		m()
 	}
 }
@@ -259,10 +263,9 @@
 	m()
 }
 
-// Test case from issue. Eventually we may disallow this due
-// to the cycle via the alias type name. But for now we make
-// sure this is accepted.
-type issue25301b = interface {
+// Test case from issue.
+// cmd/compile reports a cycle as well.
+type issue25301b /* ERROR cycle */ = interface {
 	m() interface{ issue25301b }
 }
 
@@ -317,7 +320,7 @@
 
 // Issue #26234: Make various field/method lookup errors easier to read by matching cmd/compile's output
 func issue26234a(f *syn.File) {
-	// The error message below should refer to the actual package path base (syntax)
+	// The error message below should refer to the actual package name (syntax)
 	// not the local package name (syn).
 	f.foo /* ERROR f.foo undefined \(type \*syntax.File has no field or method foo\) */
 }
@@ -338,3 +341,15 @@
 func issue26234c() {
 	T.x /* ERROR T.x undefined \(type T has no method x\) */ ()
 }
+
+func issue35895() {
+	// T is defined in this package, don't qualify its name with the package name.
+	var _ T = 0 // ERROR cannot convert 0 \(untyped int constant\) to T
+
+	// There is only one package with name syntax imported, only use the (global) package name in error messages.
+	var _ *syn.File = 0 // ERROR cannot convert 0 \(untyped int constant\) to \*syntax.File
+
+	// Because both t1 and t2 have the same global package name (template),
+	// qualify packages with full path name in this case.
+	var _ t1.Template = t2 /* ERROR cannot use .* \(value of type "html/template".Template\) as "text/template".Template */ .Template{}
+}
\ No newline at end of file
diff --git a/libgo/go/go/types/testdata/literals.src b/libgo/go/go/types/testdata/literals.src
new file mode 100644
index 0000000..494a465
--- /dev/null
+++ b/libgo/go/go/types/testdata/literals.src
@@ -0,0 +1,111 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This file tests various representations of literals
+// and compares them with literals or constant expressions
+// of equal values.
+
+package literals
+
+func _() {
+	// 0-octals
+	assert(0_123 == 0123)
+	assert(0123_456 == 0123456)
+
+	// decimals
+	assert(1_234 == 1234)
+	assert(1_234_567 == 1234567)
+
+	// hexadecimals
+	assert(0X_0 == 0)
+	assert(0X_1234 == 0x1234)
+	assert(0X_CAFE_f00d == 0xcafef00d)
+
+	// octals
+	assert(0o0 == 0)
+	assert(0o1234 == 01234)
+	assert(0o01234567 == 01234567)
+
+	assert(0O0 == 0)
+	assert(0O1234 == 01234)
+	assert(0O01234567 == 01234567)
+
+	assert(0o_0 == 0)
+	assert(0o_1234 == 01234)
+	assert(0o0123_4567 == 01234567)
+
+	assert(0O_0 == 0)
+	assert(0O_1234 == 01234)
+	assert(0O0123_4567 == 01234567)
+
+	// binaries
+	assert(0b0 == 0)
+	assert(0b1011 == 0xb)
+	assert(0b00101101 == 0x2d)
+
+	assert(0B0 == 0)
+	assert(0B1011 == 0xb)
+	assert(0B00101101 == 0x2d)
+
+	assert(0b_0 == 0)
+	assert(0b10_11 == 0xb)
+	assert(0b_0010_1101 == 0x2d)
+
+	// decimal floats
+	assert(1_2_3. == 123.)
+	assert(0_123. == 123.)
+
+	assert(0_0e0 == 0.)
+	assert(1_2_3e0 == 123.)
+	assert(0_123e0 == 123.)
+
+	assert(0e-0_0 == 0.)
+	assert(1_2_3E+0 == 123.)
+	assert(0123E1_2_3 == 123e123)
+
+	assert(0.e+1 == 0.)
+	assert(123.E-1_0 == 123e-10)
+	assert(01_23.e123 == 123e123)
+
+	assert(.0e-1 == .0)
+	assert(.123E+10 == .123e10)
+	assert(.0123E123 == .0123e123)
+
+	assert(1_2_3.123 == 123.123)
+	assert(0123.01_23 == 123.0123)
+
+	// hexadecimal floats
+	assert(0x0.p+0 == 0.)
+	assert(0Xdeadcafe.p-10 == 0xdeadcafe/1024.0)
+	assert(0x1234.P84 == 0x1234000000000000000000000)
+
+	assert(0x.1p-0 == 1./16)
+	assert(0X.deadcafep4 == 1.0*0xdeadcafe/0x10000000)
+	assert(0x.1234P+12 == 1.0*0x1234/0x10)
+
+	assert(0x0p0 == 0.)
+	assert(0Xdeadcafep+1 == 0x1bd5b95fc)
+	assert(0x1234P-10 == 0x1234/1024.0)
+
+	assert(0x0.0p0 == 0.)
+	assert(0Xdead.cafep+1 == 1.0*0x1bd5b95fc/0x10000)
+	assert(0x12.34P-10 == 1.0*0x1234/0x40000)
+
+	assert(0Xdead_cafep+1 == 0xdeadcafep+1)
+	assert(0x_1234P-10 == 0x1234p-10)
+
+	assert(0X_dead_cafe.p-10 == 0xdeadcafe.p-10)
+	assert(0x12_34.P1_2_3 == 0x1234.p123)
+
+	assert(1_234i == 1234i)
+	assert(1_234_567i == 1234567i)
+
+	assert(0.i == 0i)
+	assert(123.i == 123i)
+	assert(0123.i == 123i)
+
+	assert(0.e+1i == 0i)
+	assert(123.E-1_0i == 123e-10i)
+	assert(01_23.e123i == 123e123i)
+}
diff --git a/libgo/go/go/types/testdata/shifts.src b/libgo/go/go/types/testdata/shifts.src
index 52e340e..ebc95ba 100644
--- a/libgo/go/go/types/testdata/shifts.src
+++ b/libgo/go/go/types/testdata/shifts.src
@@ -10,9 +10,21 @@
 		s = 10
 		_ = 0<<0
 		_ = 1<<s
-		_ = 1<<- /* ERROR "overflows uint" */ 1
+		_ = 1<<- /* ERROR "negative shift count" */ 1
+		// For the test below we may decide to convert to int
+		// rather than uint and then report a negative shift
+		// count instead, which might be a better error. The
+		// (minor) difference is that this would restrict the
+		// shift count range by half (from all uint values to
+		// the positive int values).
+		// This depends on the exact spec wording which is not
+		// done yet.
+		// TODO(gri) revisit and adjust when spec change is done
+		_ = 1<<- /* ERROR "truncated to uint" */ 1.0
 		_ = 1<<1075 /* ERROR "invalid shift" */
 		_ = 2.0<<1
+		_ = 1<<1.0
+		_ = 1<<(1+0i)
 
 		_ int = 2<<s
 		_ float32 = 2<<s
@@ -35,11 +47,13 @@
 		u uint
 
 		_ = 1<<0
-		_ = 1<<i /* ERROR "must be unsigned" */
+		_ = 1<<i
 		_ = 1<<u
 		_ = 1<<"foo" /* ERROR "cannot convert" */
 		_ = i<<0
-		_ = i<<- /* ERROR "overflows uint" */ 1
+		_ = i<<- /* ERROR "negative shift count" */ 1
+		_ = i<<1.0
+		_ = 1<<(1+0i)
 		_ = 1 /* ERROR "overflows" */ <<100
 
 		_ uint = 1 << 0
@@ -47,10 +61,10 @@
 		_ float32 = 1 /* ERROR "must be integer" */ << u
 
 		// for issue 14822
-		_ = 1<<( /* ERROR "invalid shift count" */ 1<<63)
-		_ = 1<<( /* ERROR "overflows uint" */ 1<<64)
+		_ = 1<<( /* ERROR "invalid shift count" */ 1<<64-1)
+		_ = 1<<( /* ERROR "invalid shift count" */ 1<<64)
 		_ = u<<(1<<63) // valid
-		_ = u<<( /* ERROR "overflows uint" */ 1<<64)
+		_ = u<<(1<<64) // valid
 	)
 }
 
diff --git a/libgo/go/go/types/type.go b/libgo/go/go/types/type.go
index 3dd9eb9..087cda4 100644
--- a/libgo/go/go/types/type.go
+++ b/libgo/go/go/types/type.go
@@ -278,37 +278,32 @@
 // NewInterfaceType takes ownership of the provided methods and may modify their types by setting
 // missing receivers. To compute the method set of the interface, Complete must be called.
 func NewInterfaceType(methods []*Func, embeddeds []Type) *Interface {
-	typ := new(Interface)
-
 	if len(methods) == 0 && len(embeddeds) == 0 {
-		return typ
+		return &emptyInterface
 	}
 
-	var mset objset
+	// set method receivers if necessary
+	typ := new(Interface)
 	for _, m := range methods {
-		if mset.insert(m) != nil {
-			panic("multiple methods with the same name")
-		}
-		// set receiver if we don't have one
 		if sig := m.typ.(*Signature); sig.recv == nil {
 			sig.recv = NewVar(m.pos, m.pkg, "", typ)
 		}
 	}
-	sort.Sort(byUniqueMethodName(methods))
 
-	if len(embeddeds) > 0 {
-		// All embedded types should be interfaces; however, defined types
-		// may not yet be fully resolved. Only verify that non-defined types
-		// are interfaces. This matches the behavior of the code before the
-		// fix for #25301 (issue #25596).
-		for _, t := range embeddeds {
-			if _, ok := t.(*Named); !ok && !IsInterface(t) {
-				panic("embedded type is not an interface")
-			}
+	// All embedded types should be interfaces; however, defined types
+	// may not yet be fully resolved. Only verify that non-defined types
+	// are interfaces. This matches the behavior of the code before the
+	// fix for #25301 (issue #25596).
+	for _, t := range embeddeds {
+		if _, ok := t.(*Named); !ok && !IsInterface(t) {
+			panic("embedded type is not an interface")
 		}
-		sort.Stable(byUniqueTypeName(embeddeds))
 	}
 
+	// sort for API stability
+	sort.Sort(byUniqueMethodName(methods))
+	sort.Stable(byUniqueTypeName(embeddeds))
+
 	typ.methods = methods
 	typ.embeddeds = embeddeds
 	return typ
@@ -334,40 +329,76 @@
 func (t *Interface) EmbeddedType(i int) Type { return t.embeddeds[i] }
 
 // NumMethods returns the total number of methods of interface t.
-func (t *Interface) NumMethods() int { return len(t.allMethods) }
+// The interface must have been completed.
+func (t *Interface) NumMethods() int { t.assertCompleteness(); return len(t.allMethods) }
+
+func (t *Interface) assertCompleteness() {
+	if t.allMethods == nil {
+		panic("interface is incomplete")
+	}
+}
 
 // Method returns the i'th method of interface t for 0 <= i < t.NumMethods().
 // The methods are ordered by their unique Id.
-func (t *Interface) Method(i int) *Func { return t.allMethods[i] }
+// The interface must have been completed.
+func (t *Interface) Method(i int) *Func { t.assertCompleteness(); return t.allMethods[i] }
 
 // Empty reports whether t is the empty interface.
-func (t *Interface) Empty() bool { return len(t.allMethods) == 0 }
+// The interface must have been completed.
+func (t *Interface) Empty() bool { t.assertCompleteness(); return len(t.allMethods) == 0 }
 
 // Complete computes the interface's method set. It must be called by users of
 // NewInterfaceType and NewInterface after the interface's embedded types are
 // fully defined and before using the interface type in any way other than to
-// form other types. Complete returns the receiver.
+// form other types. The interface must not contain duplicate methods or a
+// panic occurs. Complete returns the receiver.
 func (t *Interface) Complete() *Interface {
+	// TODO(gri) consolidate this method with Checker.completeInterface
 	if t.allMethods != nil {
 		return t
 	}
 
-	// collect all methods
-	var allMethods []*Func
-	allMethods = append(allMethods, t.methods...)
-	for _, et := range t.embeddeds {
-		it := et.Underlying().(*Interface)
-		it.Complete()
-		// copy embedded methods unchanged (see issue #28282)
-		allMethods = append(allMethods, it.allMethods...)
-	}
-	sort.Sort(byUniqueMethodName(allMethods))
+	t.allMethods = markComplete // avoid infinite recursion
 
-	// t.methods and/or t.embeddeds may have been empty
-	if allMethods == nil {
-		allMethods = markComplete
+	var todo []*Func
+	var methods []*Func
+	var seen objset
+	addMethod := func(m *Func, explicit bool) {
+		switch other := seen.insert(m); {
+		case other == nil:
+			methods = append(methods, m)
+		case explicit:
+			panic("duplicate method " + m.name)
+		default:
+			// check method signatures after all locally embedded interfaces are computed
+			todo = append(todo, m, other.(*Func))
+		}
 	}
-	t.allMethods = allMethods
+
+	for _, m := range t.methods {
+		addMethod(m, true)
+	}
+
+	for _, typ := range t.embeddeds {
+		typ := typ.Underlying().(*Interface)
+		typ.Complete()
+		for _, m := range typ.allMethods {
+			addMethod(m, false)
+		}
+	}
+
+	for i := 0; i < len(todo); i += 2 {
+		m := todo[i]
+		other := todo[i+1]
+		if !Identical(m.typ, other.typ) {
+			panic("duplicate method " + m.name)
+		}
+	}
+
+	if methods != nil {
+		sort.Sort(byUniqueMethodName(methods))
+		t.allMethods = methods
+	}
 
 	return t
 }
@@ -417,7 +448,9 @@
 
 // A Named represents a named type.
 type Named struct {
+	info       typeInfo  // for cycle detection
 	obj        *TypeName // corresponding declared object
+	orig       Type      // type (on RHS of declaration) this *Named type is derived of (for cycle reporting)
 	underlying Type      // possibly a *Named during setup; never a *Named once set up completely
 	methods    []*Func   // methods declared for this type (not the method set of this type); signatures are type-checked lazily
 }
@@ -429,7 +462,7 @@
 	if _, ok := underlying.(*Named); ok {
 		panic("types.NewNamed: underlying type must not be *Named")
 	}
-	typ := &Named{obj: obj, underlying: underlying, methods: methods}
+	typ := &Named{obj: obj, orig: underlying, underlying: underlying, methods: methods}
 	if obj.typ == nil {
 		obj.typ = typ
 	}
diff --git a/libgo/go/go/types/typestring_test.go b/libgo/go/go/types/typestring_test.go
index d12c60f..a2241ca 100644
--- a/libgo/go/go/types/typestring_test.go
+++ b/libgo/go/go/types/typestring_test.go
@@ -148,11 +148,11 @@
 		{new(Interface), "interface{/* incomplete */}"},
 		{new(Interface).Complete(), "interface{}"},
 
-		{NewInterface(nil, nil), "interface{/* incomplete */}"},
+		{NewInterface(nil, nil), "interface{}"},
 		{NewInterface(nil, nil).Complete(), "interface{}"},
-		{NewInterface([]*Func{}, nil), "interface{/* incomplete */}"},
+		{NewInterface([]*Func{}, nil), "interface{}"},
 		{NewInterface([]*Func{}, nil).Complete(), "interface{}"},
-		{NewInterface(nil, []*Named{}), "interface{/* incomplete */}"},
+		{NewInterface(nil, []*Named{}), "interface{}"},
 		{NewInterface(nil, []*Named{}).Complete(), "interface{}"},
 		{NewInterface([]*Func{m}, nil), "interface{m() /* incomplete */}"},
 		{NewInterface([]*Func{m}, nil).Complete(), "interface{m()}"},
@@ -162,11 +162,11 @@
 		{NewInterface(nil, []*Named{newDefined(NewInterface([]*Func{m}, nil).Complete())}), "interface{T /* incomplete */}"},
 		{NewInterface(nil, []*Named{newDefined(NewInterface([]*Func{m}, nil).Complete())}).Complete(), "interface{T}"},
 
-		{NewInterfaceType(nil, nil), "interface{/* incomplete */}"},
+		{NewInterfaceType(nil, nil), "interface{}"},
 		{NewInterfaceType(nil, nil).Complete(), "interface{}"},
-		{NewInterfaceType([]*Func{}, nil), "interface{/* incomplete */}"},
+		{NewInterfaceType([]*Func{}, nil), "interface{}"},
 		{NewInterfaceType([]*Func{}, nil).Complete(), "interface{}"},
-		{NewInterfaceType(nil, []Type{}), "interface{/* incomplete */}"},
+		{NewInterfaceType(nil, []Type{}), "interface{}"},
 		{NewInterfaceType(nil, []Type{}).Complete(), "interface{}"},
 		{NewInterfaceType([]*Func{m}, nil), "interface{m() /* incomplete */}"},
 		{NewInterfaceType([]*Func{m}, nil).Complete(), "interface{m()}"},
diff --git a/libgo/go/go/types/typexpr.go b/libgo/go/go/types/typexpr.go
index b16bf96..d5837c4 100644
--- a/libgo/go/go/types/typexpr.go
+++ b/libgo/go/go/types/typexpr.go
@@ -142,16 +142,6 @@
 	return
 }
 
-// indirectType is like typ but it also breaks the (otherwise) infinite size of recursive
-// types by introducing an indirection. It should be called for components of types that
-// are not laid out in place in memory, such as pointer base types, slice or map element
-// types, function parameter types, etc.
-func (check *Checker) indirectType(e ast.Expr) Type {
-	check.push(indir)
-	defer check.pop()
-	return check.definedType(e, nil)
-}
-
 // funcType type-checks a function or method type.
 func (check *Checker) funcType(sig *Signature, recvPar *ast.FieldList, ftyp *ast.FuncType) {
 	scope := NewScope(check.scope, token.NoPos, token.NoPos, "function")
@@ -273,7 +263,7 @@
 		} else {
 			typ := new(Slice)
 			def.setUnderlying(typ)
-			typ.elem = check.indirectType(e.Elt)
+			typ.elem = check.typ(e.Elt)
 			return typ
 		}
 
@@ -286,7 +276,7 @@
 	case *ast.StarExpr:
 		typ := new(Pointer)
 		def.setUnderlying(typ)
-		typ.base = check.indirectType(e.X)
+		typ.base = check.typ(e.X)
 		return typ
 
 	case *ast.FuncType:
@@ -305,8 +295,8 @@
 		typ := new(Map)
 		def.setUnderlying(typ)
 
-		typ.key = check.indirectType(e.Key)
-		typ.elem = check.indirectType(e.Value)
+		typ.key = check.typ(e.Key)
+		typ.elem = check.typ(e.Value)
 
 		// spec: "The comparison operators == and != must be fully defined
 		// for operands of the key type; thus the key type must not be a
@@ -314,7 +304,7 @@
 		//
 		// Delay this check because it requires fully setup types;
 		// it is safe to continue in any case (was issue 6667).
-		check.later(func() {
+		check.atEnd(func() {
 			if !Comparable(typ.key) {
 				check.errorf(e.Key.Pos(), "invalid map key type %s", typ.key)
 			}
@@ -340,7 +330,7 @@
 		}
 
 		typ.dir = dir
-		typ.elem = check.indirectType(e.Value)
+		typ.elem = check.typ(e.Value)
 		return typ
 
 	default:
@@ -421,7 +411,7 @@
 				// ignore ... and continue
 			}
 		}
-		typ := check.indirectType(ftype)
+		typ := check.typ(ftype)
 		// The parser ensures that f.Tag is nil and we don't
 		// care if a constructed AST contains a non-nil tag.
 		if len(field.Names) > 0 {
@@ -472,171 +462,154 @@
 }
 
 func (check *Checker) interfaceType(ityp *Interface, iface *ast.InterfaceType, def *Named) {
-	// fast-track empty interface
-	if iface.Methods.List == nil {
-		ityp.allMethods = markComplete
-		return
-	}
+	for _, f := range iface.Methods.List {
+		if len(f.Names) > 0 {
+			// We have a method with name f.Names[0].
+			// (The parser ensures that there's only one method
+			// and we don't care if a constructed AST has more.)
+			name := f.Names[0]
+			if name.Name == "_" {
+				check.errorf(name.Pos(), "invalid method name _")
+				continue // ignore
+			}
 
-	// collect embedded interfaces
-	// Only needed for printing and API. Delay collection
-	// to end of type-checking (for package-global interfaces)
-	// when all types are complete. Local interfaces are handled
-	// after each statement (as each statement processes delayed
-	// functions).
-	interfaceContext := check.context // capture for use in closure below
-	check.later(func() {
-		if trace {
-			check.trace(iface.Pos(), "-- delayed checking embedded interfaces of %v", iface)
-			check.indent++
-			defer func() {
-				check.indent--
-			}()
-		}
-
-		// The context must be restored since for local interfaces
-		// delayed functions are processed after each statement
-		// (was issue #24140).
-		defer func(ctxt context) {
-			check.context = ctxt
-		}(check.context)
-		check.context = interfaceContext
-
-		for _, f := range iface.Methods.List {
-			if len(f.Names) == 0 {
-				typ := check.indirectType(f.Type)
-				// typ should be a named type denoting an interface
-				// (the parser will make sure it's a named type but
-				// constructed ASTs may be wrong).
-				if typ == Typ[Invalid] {
-					continue // error reported before
+			typ := check.typ(f.Type)
+			sig, _ := typ.(*Signature)
+			if sig == nil {
+				if typ != Typ[Invalid] {
+					check.invalidAST(f.Type.Pos(), "%s is not a method signature", typ)
 				}
-				embed, _ := typ.Underlying().(*Interface)
-				if embed == nil {
+				continue // ignore
+			}
+
+			// use named receiver type if available (for better error messages)
+			var recvTyp Type = ityp
+			if def != nil {
+				recvTyp = def
+			}
+			sig.recv = NewVar(name.Pos(), check.pkg, "", recvTyp)
+
+			m := NewFunc(name.Pos(), check.pkg, name.Name, sig)
+			check.recordDef(name, m)
+			ityp.methods = append(ityp.methods, m)
+		} else {
+			// We have an embedded interface and f.Type is its
+			// (possibly qualified) embedded type name. Collect
+			// it if it's a valid interface.
+			typ := check.typ(f.Type)
+
+			utyp := check.underlying(typ)
+			if _, ok := utyp.(*Interface); !ok {
+				if utyp != Typ[Invalid] {
 					check.errorf(f.Type.Pos(), "%s is not an interface", typ)
-					continue
 				}
-				// Correct embedded interfaces must be complete -
-				// don't just assert, but report error since this
-				// used to be the underlying cause for issue #18395.
-				if embed.allMethods == nil {
-					check.dump("%v: incomplete embedded interface %s", f.Type.Pos(), typ)
-					unreachable()
-				}
-				// collect interface
-				ityp.embeddeds = append(ityp.embeddeds, typ)
+				continue
 			}
-		}
-		// sort to match NewInterface/NewInterface2
-		// TODO(gri) we may be able to switch to source order
-		sort.Stable(byUniqueTypeName(ityp.embeddeds))
-	})
 
-	// compute method set
-	var tname *TypeName
-	var path []*TypeName
-	if def != nil {
-		tname = def.obj
-		path = []*TypeName{tname}
+			ityp.embeddeds = append(ityp.embeddeds, typ)
+			check.posMap[ityp] = append(check.posMap[ityp], f.Type.Pos())
+		}
 	}
-	info := check.infoFromTypeLit(check.scope, iface, tname, path)
-	if info == nil || info == &emptyIfaceInfo {
-		// we got an error or the empty interface - exit early
+
+	if len(ityp.methods) == 0 && len(ityp.embeddeds) == 0 {
+		// empty interface
 		ityp.allMethods = markComplete
 		return
 	}
 
-	// use named receiver type if available (for better error messages)
-	var recvTyp Type = ityp
-	if def != nil {
-		recvTyp = def
-	}
-
-	// Correct receiver type for all methods explicitly declared
-	// by this interface after we're done with type-checking at
-	// this level. See comment below for details.
-	check.later(func() {
-		for _, m := range ityp.methods {
-			m.typ.(*Signature).recv.typ = recvTyp
-		}
-	})
-
-	// collect methods
-	var sigfix []*methodInfo
-	for i, minfo := range info.methods {
-		fun := minfo.fun
-		if fun == nil {
-			name := minfo.src.Names[0]
-			pos := name.Pos()
-			// Don't type-check signature yet - use an
-			// empty signature now and update it later.
-			// But set up receiver since we know it and
-			// its position, and because interface method
-			// signatures don't get a receiver via regular
-			// type-checking (there isn't a receiver in the
-			// method's AST). Setting the receiver type is
-			// also important for ptrRecv() (see methodset.go).
-			//
-			// Note: For embedded methods, the receiver type
-			// should be the type of the interface that declared
-			// the methods in the first place. Since we get the
-			// methods here via methodInfo, which may be computed
-			// before we have all relevant interface types, we use
-			// the current interface's type (recvType). This may be
-			// the type of the interface embedding the interface that
-			// declared the methods. This doesn't matter for type-
-			// checking (we only care about the receiver type for
-			// the ptrRecv predicate, and it's never a pointer recv
-			// for interfaces), but it matters for go/types clients
-			// and for printing. We correct the receiver after type-
-			// checking.
-			//
-			// TODO(gri) Consider marking methods signatures
-			// as incomplete, for better error messages. See
-			// also the T4 and T5 tests in testdata/cycles2.src.
-			sig := new(Signature)
-			sig.recv = NewVar(pos, check.pkg, "", recvTyp)
-			fun = NewFunc(pos, check.pkg, name.Name, sig)
-			minfo.fun = fun
-			check.recordDef(name, fun)
-			sigfix = append(sigfix, minfo)
-		}
-		// fun != nil
-		if i < info.explicits {
-			ityp.methods = append(ityp.methods, fun)
-		}
-		ityp.allMethods = append(ityp.allMethods, fun)
-	}
-
-	// fix signatures now that we have collected all methods
-	savedContext := check.context
-	for _, minfo := range sigfix {
-		// (possibly embedded) methods must be type-checked within their scope and
-		// type-checking them must not affect the current context (was issue #23914)
-		check.context = context{scope: minfo.scope}
-		typ := check.indirectType(minfo.src.Type)
-		sig, _ := typ.(*Signature)
-		if sig == nil {
-			if typ != Typ[Invalid] {
-				check.invalidAST(minfo.src.Type.Pos(), "%s is not a method signature", typ)
-			}
-			continue // keep method with empty method signature
-		}
-		// update signature, but keep recv that was set up before
-		old := minfo.fun.typ.(*Signature)
-		sig.recv = old.recv
-		*old = *sig // update signature (don't replace pointer!)
-	}
-	check.context = savedContext
-
-	// sort to match NewInterface/NewInterface2
-	// TODO(gri) we may be able to switch to source order
+	// sort for API stability
 	sort.Sort(byUniqueMethodName(ityp.methods))
+	sort.Stable(byUniqueTypeName(ityp.embeddeds))
 
-	if ityp.allMethods == nil {
-		ityp.allMethods = markComplete
-	} else {
-		sort.Sort(byUniqueMethodName(ityp.allMethods))
+	check.later(func() { check.completeInterface(ityp) })
+}
+
+func (check *Checker) completeInterface(ityp *Interface) {
+	if ityp.allMethods != nil {
+		return
+	}
+
+	// completeInterface may be called via the LookupFieldOrMethod,
+	// MissingMethod, Identical, or IdenticalIgnoreTags external API
+	// in which case check will be nil. In this case, type-checking
+	// must be finished and all interfaces should have been completed.
+	if check == nil {
+		panic("internal error: incomplete interface")
+	}
+
+	if trace {
+		check.trace(token.NoPos, "complete %s", ityp)
+		check.indent++
+		defer func() {
+			check.indent--
+			check.trace(token.NoPos, "=> %s", ityp)
+		}()
+	}
+
+	// An infinitely expanding interface (due to a cycle) is detected
+	// elsewhere (Checker.validType), so here we simply assume we only
+	// have valid interfaces. Mark the interface as complete to avoid
+	// infinite recursion if the validType check occurs later for some
+	// reason.
+	ityp.allMethods = markComplete
+
+	// Methods of embedded interfaces are collected unchanged; i.e., the identity
+	// of a method I.m's Func Object of an interface I is the same as that of
+	// the method m in an interface that embeds interface I. On the other hand,
+	// if a method is embedded via multiple overlapping embedded interfaces, we
+	// don't provide a guarantee which "original m" got chosen for the embedding
+	// interface. See also issue #34421.
+	//
+	// If we don't care to provide this identity guarantee anymore, instead of
+	// reusing the original method in embeddings, we can clone the method's Func
+	// Object and give it the position of a corresponding embedded interface. Then
+	// we can get rid of the mpos map below and simply use the cloned method's
+	// position.
+
+	var seen objset
+	var methods []*Func
+	mpos := make(map[*Func]token.Pos) // method specification or method embedding position, for good error messages
+	addMethod := func(pos token.Pos, m *Func, explicit bool) {
+		switch other := seen.insert(m); {
+		case other == nil:
+			methods = append(methods, m)
+			mpos[m] = pos
+		case explicit:
+			check.errorf(pos, "duplicate method %s", m.name)
+			check.errorf(mpos[other.(*Func)], "\tother declaration of %s", m.name) // secondary error, \t indented
+		default:
+			// check method signatures after all types are computed (issue #33656)
+			check.atEnd(func() {
+				if !check.identical(m.typ, other.Type()) {
+					check.errorf(pos, "duplicate method %s", m.name)
+					check.errorf(mpos[other.(*Func)], "\tother declaration of %s", m.name) // secondary error, \t indented
+				}
+			})
+		}
+	}
+
+	for _, m := range ityp.methods {
+		addMethod(m.pos, m, true)
+	}
+
+	posList := check.posMap[ityp]
+	for i, typ := range ityp.embeddeds {
+		pos := posList[i] // embedding position
+		typ, ok := check.underlying(typ).(*Interface)
+		if !ok {
+			// An error was reported when collecting the embedded types.
+			// Ignore it.
+			continue
+		}
+		check.completeInterface(typ)
+		for _, m := range typ.allMethods {
+			addMethod(pos, m, false) // use embedding position pos rather than m.pos
+		}
+	}
+
+	if methods != nil {
+		sort.Sort(byUniqueMethodName(methods))
+		ityp.allMethods = methods
 	}
 }
 
diff --git a/libgo/go/golang.org/x/crypto/chacha20/chacha_arm64.go b/libgo/go/golang.org/x/crypto/chacha20/chacha_arm64.go
new file mode 100644
index 0000000..87f1e36
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/chacha20/chacha_arm64.go
@@ -0,0 +1,17 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build go1.11
+// +build !gccgo,!appengine
+
+package chacha20
+
+const bufSize = 256
+
+//go:noescape
+func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32)
+
+func (c *Cipher) xorKeyStreamBlocks(dst, src []byte) {
+	xorKeyStreamVX(dst, src, &c.key, &c.nonce, &c.counter)
+}
diff --git a/libgo/go/golang.org/x/crypto/chacha20/chacha_generic.go b/libgo/go/golang.org/x/crypto/chacha20/chacha_generic.go
new file mode 100644
index 0000000..098ec9f
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/chacha20/chacha_generic.go
@@ -0,0 +1,364 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package chacha20 implements the ChaCha20 and XChaCha20 encryption algorithms
+// as specified in RFC 8439 and draft-irtf-cfrg-xchacha-01.
+package chacha20
+
+import (
+	"crypto/cipher"
+	"encoding/binary"
+	"errors"
+	"math/bits"
+
+	"golang.org/x/crypto/internal/subtle"
+)
+
+const (
+	// KeySize is the size of the key used by this cipher, in bytes.
+	KeySize = 32
+
+	// NonceSize is the size of the nonce used with the standard variant of this
+	// cipher, in bytes.
+	//
+	// Note that this is too short to be safely generated at random if the same
+	// key is reused more than 2³² times.
+	NonceSize = 12
+
+	// NonceSizeX is the size of the nonce used with the XChaCha20 variant of
+	// this cipher, in bytes.
+	NonceSizeX = 24
+)
+
+// Cipher is a stateful instance of ChaCha20 or XChaCha20 using a particular key
+// and nonce. A *Cipher implements the cipher.Stream interface.
+type Cipher struct {
+	// The ChaCha20 state is 16 words: 4 constant, 8 of key, 1 of counter
+	// (incremented after each block), and 3 of nonce.
+	key     [8]uint32
+	counter uint32
+	nonce   [3]uint32
+
+	// The last len bytes of buf are leftover key stream bytes from the previous
+	// XORKeyStream invocation. The size of buf depends on how many blocks are
+	// computed at a time.
+	buf [bufSize]byte
+	len int
+
+	// The counter-independent results of the first round are cached after they
+	// are computed the first time.
+	precompDone      bool
+	p1, p5, p9, p13  uint32
+	p2, p6, p10, p14 uint32
+	p3, p7, p11, p15 uint32
+}
+
+var _ cipher.Stream = (*Cipher)(nil)
+
+// NewUnauthenticatedCipher creates a new ChaCha20 stream cipher with the given
+// 32 bytes key and a 12 or 24 bytes nonce. If a nonce of 24 bytes is provided,
+// the XChaCha20 construction will be used. It returns an error if key or nonce
+// have any other length.
+//
+// Note that ChaCha20, like all stream ciphers, is not authenticated and allows
+// attackers to silently tamper with the plaintext. For this reason, it is more
+// appropriate as a building block than as a standalone encryption mechanism.
+// Instead, consider using package golang.org/x/crypto/chacha20poly1305.
+func NewUnauthenticatedCipher(key, nonce []byte) (*Cipher, error) {
+	// This function is split into a wrapper so that the Cipher allocation will
+	// be inlined, and depending on how the caller uses the return value, won't
+	// escape to the heap.
+	c := &Cipher{}
+	return newUnauthenticatedCipher(c, key, nonce)
+}
+
+func newUnauthenticatedCipher(c *Cipher, key, nonce []byte) (*Cipher, error) {
+	if len(key) != KeySize {
+		return nil, errors.New("chacha20: wrong key size")
+	}
+	if len(nonce) == NonceSizeX {
+		// XChaCha20 uses the ChaCha20 core to mix 16 bytes of the nonce into a
+		// derived key, allowing it to operate on a nonce of 24 bytes. See
+		// draft-irtf-cfrg-xchacha-01, Section 2.3.
+		key, _ = HChaCha20(key, nonce[0:16])
+		cNonce := make([]byte, NonceSize)
+		copy(cNonce[4:12], nonce[16:24])
+		nonce = cNonce
+	} else if len(nonce) != NonceSize {
+		return nil, errors.New("chacha20: wrong nonce size")
+	}
+
+	c.key = [8]uint32{
+		binary.LittleEndian.Uint32(key[0:4]),
+		binary.LittleEndian.Uint32(key[4:8]),
+		binary.LittleEndian.Uint32(key[8:12]),
+		binary.LittleEndian.Uint32(key[12:16]),
+		binary.LittleEndian.Uint32(key[16:20]),
+		binary.LittleEndian.Uint32(key[20:24]),
+		binary.LittleEndian.Uint32(key[24:28]),
+		binary.LittleEndian.Uint32(key[28:32]),
+	}
+	c.nonce = [3]uint32{
+		binary.LittleEndian.Uint32(nonce[0:4]),
+		binary.LittleEndian.Uint32(nonce[4:8]),
+		binary.LittleEndian.Uint32(nonce[8:12]),
+	}
+	return c, nil
+}
+
+// The constant first 4 words of the ChaCha20 state.
+const (
+	j0 uint32 = 0x61707865 // expa
+	j1 uint32 = 0x3320646e // nd 3
+	j2 uint32 = 0x79622d32 // 2-by
+	j3 uint32 = 0x6b206574 // te k
+)
+
+const blockSize = 64
+
+// quarterRound is the core of ChaCha20. It shuffles the bits of 4 state words.
+// It's executed 4 times for each of the 20 ChaCha20 rounds, operating on all 16
+// words each round, in columnar or diagonal groups of 4 at a time.
+func quarterRound(a, b, c, d uint32) (uint32, uint32, uint32, uint32) {
+	a += b
+	d ^= a
+	d = bits.RotateLeft32(d, 16)
+	c += d
+	b ^= c
+	b = bits.RotateLeft32(b, 12)
+	a += b
+	d ^= a
+	d = bits.RotateLeft32(d, 8)
+	c += d
+	b ^= c
+	b = bits.RotateLeft32(b, 7)
+	return a, b, c, d
+}
+
+// XORKeyStream XORs each byte in the given slice with a byte from the
+// cipher's key stream. Dst and src must overlap entirely or not at all.
+//
+// If len(dst) < len(src), XORKeyStream will panic. It is acceptable
+// to pass a dst bigger than src, and in that case, XORKeyStream will
+// only update dst[:len(src)] and will not touch the rest of dst.
+//
+// Multiple calls to XORKeyStream behave as if the concatenation of
+// the src buffers was passed in a single run. That is, Cipher
+// maintains state and does not reset at each XORKeyStream call.
+func (s *Cipher) XORKeyStream(dst, src []byte) {
+	if len(src) == 0 {
+		return
+	}
+	if len(dst) < len(src) {
+		panic("chacha20: output smaller than input")
+	}
+	dst = dst[:len(src)]
+	if subtle.InexactOverlap(dst, src) {
+		panic("chacha20: invalid buffer overlap")
+	}
+
+	// First, drain any remaining key stream from a previous XORKeyStream.
+	if s.len != 0 {
+		keyStream := s.buf[bufSize-s.len:]
+		if len(src) < len(keyStream) {
+			keyStream = keyStream[:len(src)]
+		}
+		_ = src[len(keyStream)-1] // bounds check elimination hint
+		for i, b := range keyStream {
+			dst[i] = src[i] ^ b
+		}
+		s.len -= len(keyStream)
+		src = src[len(keyStream):]
+		dst = dst[len(keyStream):]
+	}
+
+	const blocksPerBuf = bufSize / blockSize
+	numBufs := (uint64(len(src)) + bufSize - 1) / bufSize
+	if uint64(s.counter)+numBufs*blocksPerBuf >= 1<<32 {
+		panic("chacha20: counter overflow")
+	}
+
+	// xorKeyStreamBlocks implementations expect input lengths that are a
+	// multiple of bufSize. Platform-specific ones process multiple blocks at a
+	// time, so have bufSizes that are a multiple of blockSize.
+
+	rem := len(src) % bufSize
+	full := len(src) - rem
+
+	if full > 0 {
+		s.xorKeyStreamBlocks(dst[:full], src[:full])
+	}
+
+	// If we have a partial (multi-)block, pad it for xorKeyStreamBlocks, and
+	// keep the leftover keystream for the next XORKeyStream invocation.
+	if rem > 0 {
+		s.buf = [bufSize]byte{}
+		copy(s.buf[:], src[full:])
+		s.xorKeyStreamBlocks(s.buf[:], s.buf[:])
+		s.len = bufSize - copy(dst[full:], s.buf[:])
+	}
+}
+
+func (s *Cipher) xorKeyStreamBlocksGeneric(dst, src []byte) {
+	if len(dst) != len(src) || len(dst)%blockSize != 0 {
+		panic("chacha20: internal error: wrong dst and/or src length")
+	}
+
+	// To generate each block of key stream, the initial cipher state
+	// (represented below) is passed through 20 rounds of shuffling,
+	// alternatively applying quarterRounds by columns (like 1, 5, 9, 13)
+	// or by diagonals (like 1, 6, 11, 12).
+	//
+	//      0:cccccccc   1:cccccccc   2:cccccccc   3:cccccccc
+	//      4:kkkkkkkk   5:kkkkkkkk   6:kkkkkkkk   7:kkkkkkkk
+	//      8:kkkkkkkk   9:kkkkkkkk  10:kkkkkkkk  11:kkkkkkkk
+	//     12:bbbbbbbb  13:nnnnnnnn  14:nnnnnnnn  15:nnnnnnnn
+	//
+	//            c=constant k=key b=blockcount n=nonce
+	var (
+		c0, c1, c2, c3   = j0, j1, j2, j3
+		c4, c5, c6, c7   = s.key[0], s.key[1], s.key[2], s.key[3]
+		c8, c9, c10, c11 = s.key[4], s.key[5], s.key[6], s.key[7]
+		_, c13, c14, c15 = s.counter, s.nonce[0], s.nonce[1], s.nonce[2]
+	)
+
+	// Three quarters of the first round don't depend on the counter, so we can
+	// calculate them here, and reuse them for multiple blocks in the loop, and
+	// for future XORKeyStream invocations.
+	if !s.precompDone {
+		s.p1, s.p5, s.p9, s.p13 = quarterRound(c1, c5, c9, c13)
+		s.p2, s.p6, s.p10, s.p14 = quarterRound(c2, c6, c10, c14)
+		s.p3, s.p7, s.p11, s.p15 = quarterRound(c3, c7, c11, c15)
+		s.precompDone = true
+	}
+
+	for i := 0; i < len(src); i += blockSize {
+		// The remainder of the first column round.
+		fcr0, fcr4, fcr8, fcr12 := quarterRound(c0, c4, c8, s.counter)
+
+		// The second diagonal round.
+		x0, x5, x10, x15 := quarterRound(fcr0, s.p5, s.p10, s.p15)
+		x1, x6, x11, x12 := quarterRound(s.p1, s.p6, s.p11, fcr12)
+		x2, x7, x8, x13 := quarterRound(s.p2, s.p7, fcr8, s.p13)
+		x3, x4, x9, x14 := quarterRound(s.p3, fcr4, s.p9, s.p14)
+
+		// The remaining 18 rounds.
+		for i := 0; i < 9; i++ {
+			// Column round.
+			x0, x4, x8, x12 = quarterRound(x0, x4, x8, x12)
+			x1, x5, x9, x13 = quarterRound(x1, x5, x9, x13)
+			x2, x6, x10, x14 = quarterRound(x2, x6, x10, x14)
+			x3, x7, x11, x15 = quarterRound(x3, x7, x11, x15)
+
+			// Diagonal round.
+			x0, x5, x10, x15 = quarterRound(x0, x5, x10, x15)
+			x1, x6, x11, x12 = quarterRound(x1, x6, x11, x12)
+			x2, x7, x8, x13 = quarterRound(x2, x7, x8, x13)
+			x3, x4, x9, x14 = quarterRound(x3, x4, x9, x14)
+		}
+
+		// Finally, add back the initial state to generate the key stream.
+		x0 += c0
+		x1 += c1
+		x2 += c2
+		x3 += c3
+		x4 += c4
+		x5 += c5
+		x6 += c6
+		x7 += c7
+		x8 += c8
+		x9 += c9
+		x10 += c10
+		x11 += c11
+		x12 += s.counter
+		x13 += c13
+		x14 += c14
+		x15 += c15
+
+		s.counter += 1
+		if s.counter == 0 {
+			panic("chacha20: internal error: counter overflow")
+		}
+
+		in, out := src[i:], dst[i:]
+		in, out = in[:blockSize], out[:blockSize] // bounds check elimination hint
+
+		// XOR the key stream with the source and write out the result.
+		xor(out[0:], in[0:], x0)
+		xor(out[4:], in[4:], x1)
+		xor(out[8:], in[8:], x2)
+		xor(out[12:], in[12:], x3)
+		xor(out[16:], in[16:], x4)
+		xor(out[20:], in[20:], x5)
+		xor(out[24:], in[24:], x6)
+		xor(out[28:], in[28:], x7)
+		xor(out[32:], in[32:], x8)
+		xor(out[36:], in[36:], x9)
+		xor(out[40:], in[40:], x10)
+		xor(out[44:], in[44:], x11)
+		xor(out[48:], in[48:], x12)
+		xor(out[52:], in[52:], x13)
+		xor(out[56:], in[56:], x14)
+		xor(out[60:], in[60:], x15)
+	}
+}
+
+// HChaCha20 uses the ChaCha20 core to generate a derived key from a 32 bytes
+// key and a 16 bytes nonce. It returns an error if key or nonce have any other
+// length. It is used as part of the XChaCha20 construction.
+func HChaCha20(key, nonce []byte) ([]byte, error) {
+	// This function is split into a wrapper so that the slice allocation will
+	// be inlined, and depending on how the caller uses the return value, won't
+	// escape to the heap.
+	out := make([]byte, 32)
+	return hChaCha20(out, key, nonce)
+}
+
+func hChaCha20(out, key, nonce []byte) ([]byte, error) {
+	if len(key) != KeySize {
+		return nil, errors.New("chacha20: wrong HChaCha20 key size")
+	}
+	if len(nonce) != 16 {
+		return nil, errors.New("chacha20: wrong HChaCha20 nonce size")
+	}
+
+	x0, x1, x2, x3 := j0, j1, j2, j3
+	x4 := binary.LittleEndian.Uint32(key[0:4])
+	x5 := binary.LittleEndian.Uint32(key[4:8])
+	x6 := binary.LittleEndian.Uint32(key[8:12])
+	x7 := binary.LittleEndian.Uint32(key[12:16])
+	x8 := binary.LittleEndian.Uint32(key[16:20])
+	x9 := binary.LittleEndian.Uint32(key[20:24])
+	x10 := binary.LittleEndian.Uint32(key[24:28])
+	x11 := binary.LittleEndian.Uint32(key[28:32])
+	x12 := binary.LittleEndian.Uint32(nonce[0:4])
+	x13 := binary.LittleEndian.Uint32(nonce[4:8])
+	x14 := binary.LittleEndian.Uint32(nonce[8:12])
+	x15 := binary.LittleEndian.Uint32(nonce[12:16])
+
+	for i := 0; i < 10; i++ {
+		// Diagonal round.
+		x0, x4, x8, x12 = quarterRound(x0, x4, x8, x12)
+		x1, x5, x9, x13 = quarterRound(x1, x5, x9, x13)
+		x2, x6, x10, x14 = quarterRound(x2, x6, x10, x14)
+		x3, x7, x11, x15 = quarterRound(x3, x7, x11, x15)
+
+		// Column round.
+		x0, x5, x10, x15 = quarterRound(x0, x5, x10, x15)
+		x1, x6, x11, x12 = quarterRound(x1, x6, x11, x12)
+		x2, x7, x8, x13 = quarterRound(x2, x7, x8, x13)
+		x3, x4, x9, x14 = quarterRound(x3, x4, x9, x14)
+	}
+
+	_ = out[31] // bounds check elimination hint
+	binary.LittleEndian.PutUint32(out[0:4], x0)
+	binary.LittleEndian.PutUint32(out[4:8], x1)
+	binary.LittleEndian.PutUint32(out[8:12], x2)
+	binary.LittleEndian.PutUint32(out[12:16], x3)
+	binary.LittleEndian.PutUint32(out[16:20], x12)
+	binary.LittleEndian.PutUint32(out[20:24], x13)
+	binary.LittleEndian.PutUint32(out[24:28], x14)
+	binary.LittleEndian.PutUint32(out[28:32], x15)
+	return out, nil
+}
diff --git a/libgo/go/golang.org/x/crypto/chacha20/chacha_noasm.go b/libgo/go/golang.org/x/crypto/chacha20/chacha_noasm.go
new file mode 100644
index 0000000..ec609ed
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/chacha20/chacha_noasm.go
@@ -0,0 +1,13 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !arm64,!s390x,!ppc64le arm64,!go1.11 gccgo appengine
+
+package chacha20
+
+const bufSize = blockSize
+
+func (s *Cipher) xorKeyStreamBlocks(dst, src []byte) {
+	s.xorKeyStreamBlocksGeneric(dst, src)
+}
diff --git a/libgo/go/golang.org/x/crypto/chacha20/chacha_ppc64le.go b/libgo/go/golang.org/x/crypto/chacha20/chacha_ppc64le.go
new file mode 100644
index 0000000..d0ec61f
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/chacha20/chacha_ppc64le.go
@@ -0,0 +1,16 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo,!appengine
+
+package chacha20
+
+const bufSize = 256
+
+//go:noescape
+func chaCha20_ctr32_vsx(out, inp *byte, len int, key *[8]uint32, counter *uint32)
+
+func (c *Cipher) xorKeyStreamBlocks(dst, src []byte) {
+	chaCha20_ctr32_vsx(&dst[0], &src[0], len(src), &c.key, &c.counter)
+}
diff --git a/libgo/go/golang.org/x/crypto/chacha20/chacha_s390x.go b/libgo/go/golang.org/x/crypto/chacha20/chacha_s390x.go
new file mode 100644
index 0000000..cd55f45
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/chacha20/chacha_s390x.go
@@ -0,0 +1,26 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo,!appengine
+
+package chacha20
+
+import "golang.org/x/sys/cpu"
+
+var haveAsm = cpu.S390X.HasVX
+
+const bufSize = 256
+
+// xorKeyStreamVX is an assembly implementation of XORKeyStream. It must only
+// be called when the vector facility is available. Implementation in asm_s390x.s.
+//go:noescape
+func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32)
+
+func (c *Cipher) xorKeyStreamBlocks(dst, src []byte) {
+	if cpu.S390X.HasVX {
+		xorKeyStreamVX(dst, src, &c.key, &c.nonce, &c.counter)
+	} else {
+		c.xorKeyStreamBlocksGeneric(dst, src)
+	}
+}
diff --git a/libgo/go/golang.org/x/crypto/internal/chacha20/xor.go b/libgo/go/golang.org/x/crypto/chacha20/xor.go
similarity index 97%
rename from libgo/go/golang.org/x/crypto/internal/chacha20/xor.go
rename to libgo/go/golang.org/x/crypto/chacha20/xor.go
index 9c5ba0b..0110c98 100644
--- a/libgo/go/golang.org/x/crypto/internal/chacha20/xor.go
+++ b/libgo/go/golang.org/x/crypto/chacha20/xor.go
@@ -4,9 +4,7 @@
 
 package chacha20
 
-import (
-	"runtime"
-)
+import "runtime"
 
 // Platforms that have fast unaligned 32-bit little endian accesses.
 const unaligned = runtime.GOARCH == "386" ||
diff --git a/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305.go b/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305.go
index bbb86ef..0d7bac3 100644
--- a/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305.go
+++ b/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305.go
@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// Package chacha20poly1305 implements the ChaCha20-Poly1305 AEAD as specified in RFC 7539,
-// and its extended nonce variant XChaCha20-Poly1305.
+// Package chacha20poly1305 implements the ChaCha20-Poly1305 AEAD and its
+// extended nonce variant XChaCha20-Poly1305, as specified in RFC 8439 and
+// draft-irtf-cfrg-xchacha-01.
 package chacha20poly1305 // import "golang.org/x/crypto/chacha20poly1305"
 
 import (
 	"crypto/cipher"
-	"encoding/binary"
 	"errors"
 )
 
@@ -29,7 +29,7 @@
 )
 
 type chacha20poly1305 struct {
-	key [8]uint32
+	key [KeySize]byte
 }
 
 // New returns a ChaCha20-Poly1305 AEAD that uses the given 256-bit key.
@@ -38,14 +38,7 @@
 		return nil, errors.New("chacha20poly1305: bad key length")
 	}
 	ret := new(chacha20poly1305)
-	ret.key[0] = binary.LittleEndian.Uint32(key[0:4])
-	ret.key[1] = binary.LittleEndian.Uint32(key[4:8])
-	ret.key[2] = binary.LittleEndian.Uint32(key[8:12])
-	ret.key[3] = binary.LittleEndian.Uint32(key[12:16])
-	ret.key[4] = binary.LittleEndian.Uint32(key[16:20])
-	ret.key[5] = binary.LittleEndian.Uint32(key[20:24])
-	ret.key[6] = binary.LittleEndian.Uint32(key[24:28])
-	ret.key[7] = binary.LittleEndian.Uint32(key[28:32])
+	copy(ret.key[:], key)
 	return ret, nil
 }
 
diff --git a/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.go b/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.go
index 2aa4fd8..737e46a 100644
--- a/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.go
+++ b/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.go
@@ -25,23 +25,23 @@
 
 // setupState writes a ChaCha20 input matrix to state. See
 // https://tools.ietf.org/html/rfc7539#section-2.3.
-func setupState(state *[16]uint32, key *[8]uint32, nonce []byte) {
+func setupState(state *[16]uint32, key *[32]byte, nonce []byte) {
 	state[0] = 0x61707865
 	state[1] = 0x3320646e
 	state[2] = 0x79622d32
 	state[3] = 0x6b206574
 
-	state[4] = key[0]
-	state[5] = key[1]
-	state[6] = key[2]
-	state[7] = key[3]
-	state[8] = key[4]
-	state[9] = key[5]
-	state[10] = key[6]
-	state[11] = key[7]
+	state[4] = binary.LittleEndian.Uint32(key[0:4])
+	state[5] = binary.LittleEndian.Uint32(key[4:8])
+	state[6] = binary.LittleEndian.Uint32(key[8:12])
+	state[7] = binary.LittleEndian.Uint32(key[12:16])
+	state[8] = binary.LittleEndian.Uint32(key[16:20])
+	state[9] = binary.LittleEndian.Uint32(key[20:24])
+	state[10] = binary.LittleEndian.Uint32(key[24:28])
+	state[11] = binary.LittleEndian.Uint32(key[28:32])
 
 	state[12] = 0
-	state[13] = binary.LittleEndian.Uint32(nonce[:4])
+	state[13] = binary.LittleEndian.Uint32(nonce[0:4])
 	state[14] = binary.LittleEndian.Uint32(nonce[4:8])
 	state[15] = binary.LittleEndian.Uint32(nonce[8:12])
 }
diff --git a/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_generic.go b/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_generic.go
index c279712..91b3856 100644
--- a/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_generic.go
+++ b/libgo/go/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_generic.go
@@ -7,7 +7,7 @@
 import (
 	"encoding/binary"
 
-	"golang.org/x/crypto/internal/chacha20"
+	"golang.org/x/crypto/chacha20"
 	"golang.org/x/crypto/internal/subtle"
 	"golang.org/x/crypto/poly1305"
 )
@@ -22,14 +22,10 @@
 		panic("chacha20poly1305: invalid buffer overlap")
 	}
 
-	var polyKey [32]byte
-	s := chacha20.New(c.key, [3]uint32{
-		binary.LittleEndian.Uint32(nonce[0:4]),
-		binary.LittleEndian.Uint32(nonce[4:8]),
-		binary.LittleEndian.Uint32(nonce[8:12]),
-	})
+	var polyKey, discardBuf [32]byte
+	s, _ := chacha20.NewUnauthenticatedCipher(c.key[:], nonce)
 	s.XORKeyStream(polyKey[:], polyKey[:])
-	s.Advance() // skip the next 32 bytes
+	s.XORKeyStream(discardBuf[:], discardBuf[:]) // skip the next 32 bytes
 	s.XORKeyStream(out, plaintext)
 
 	polyInput := make([]byte, roundTo16(len(additionalData))+roundTo16(len(plaintext))+8+8)
@@ -50,14 +46,10 @@
 	copy(tag[:], ciphertext[len(ciphertext)-16:])
 	ciphertext = ciphertext[:len(ciphertext)-16]
 
-	var polyKey [32]byte
-	s := chacha20.New(c.key, [3]uint32{
-		binary.LittleEndian.Uint32(nonce[0:4]),
-		binary.LittleEndian.Uint32(nonce[4:8]),
-		binary.LittleEndian.Uint32(nonce[8:12]),
-	})
+	var polyKey, discardBuf [32]byte
+	s, _ := chacha20.NewUnauthenticatedCipher(c.key[:], nonce)
 	s.XORKeyStream(polyKey[:], polyKey[:])
-	s.Advance() // skip the next 32 bytes
+	s.XORKeyStream(discardBuf[:], discardBuf[:]) // skip the next 32 bytes
 
 	polyInput := make([]byte, roundTo16(len(additionalData))+roundTo16(len(ciphertext))+8+8)
 	copy(polyInput, additionalData)
diff --git a/libgo/go/golang.org/x/crypto/chacha20poly1305/xchacha20poly1305.go b/libgo/go/golang.org/x/crypto/chacha20poly1305/xchacha20poly1305.go
index a02fa57..d9d46b9 100644
--- a/libgo/go/golang.org/x/crypto/chacha20poly1305/xchacha20poly1305.go
+++ b/libgo/go/golang.org/x/crypto/chacha20poly1305/xchacha20poly1305.go
@@ -6,14 +6,13 @@
 
 import (
 	"crypto/cipher"
-	"encoding/binary"
 	"errors"
 
-	"golang.org/x/crypto/internal/chacha20"
+	"golang.org/x/crypto/chacha20"
 )
 
 type xchacha20poly1305 struct {
-	key [8]uint32
+	key [KeySize]byte
 }
 
 // NewX returns a XChaCha20-Poly1305 AEAD that uses the given 256-bit key.
@@ -27,14 +26,7 @@
 		return nil, errors.New("chacha20poly1305: bad key length")
 	}
 	ret := new(xchacha20poly1305)
-	ret.key[0] = binary.LittleEndian.Uint32(key[0:4])
-	ret.key[1] = binary.LittleEndian.Uint32(key[4:8])
-	ret.key[2] = binary.LittleEndian.Uint32(key[8:12])
-	ret.key[3] = binary.LittleEndian.Uint32(key[12:16])
-	ret.key[4] = binary.LittleEndian.Uint32(key[16:20])
-	ret.key[5] = binary.LittleEndian.Uint32(key[20:24])
-	ret.key[6] = binary.LittleEndian.Uint32(key[24:28])
-	ret.key[7] = binary.LittleEndian.Uint32(key[28:32])
+	copy(ret.key[:], key)
 	return ret, nil
 }
 
@@ -60,15 +52,10 @@
 		panic("chacha20poly1305: plaintext too large")
 	}
 
-	hNonce := [4]uint32{
-		binary.LittleEndian.Uint32(nonce[0:4]),
-		binary.LittleEndian.Uint32(nonce[4:8]),
-		binary.LittleEndian.Uint32(nonce[8:12]),
-		binary.LittleEndian.Uint32(nonce[12:16]),
-	}
-	c := &chacha20poly1305{
-		key: chacha20.HChaCha20(&x.key, &hNonce),
-	}
+	c := new(chacha20poly1305)
+	hKey, _ := chacha20.HChaCha20(x.key[:], nonce[0:16])
+	copy(c.key[:], hKey)
+
 	// The first 4 bytes of the final nonce are unused counter space.
 	cNonce := make([]byte, NonceSize)
 	copy(cNonce[4:12], nonce[16:24])
@@ -87,15 +74,10 @@
 		panic("chacha20poly1305: ciphertext too large")
 	}
 
-	hNonce := [4]uint32{
-		binary.LittleEndian.Uint32(nonce[0:4]),
-		binary.LittleEndian.Uint32(nonce[4:8]),
-		binary.LittleEndian.Uint32(nonce[8:12]),
-		binary.LittleEndian.Uint32(nonce[12:16]),
-	}
-	c := &chacha20poly1305{
-		key: chacha20.HChaCha20(&x.key, &hNonce),
-	}
+	c := new(chacha20poly1305)
+	hKey, _ := chacha20.HChaCha20(x.key[:], nonce[0:16])
+	copy(c.key[:], hKey)
+
 	// The first 4 bytes of the final nonce are unused counter space.
 	cNonce := make([]byte, NonceSize)
 	copy(cNonce[4:12], nonce[16:24])
diff --git a/libgo/go/golang.org/x/crypto/curve25519/curve25519.go b/libgo/go/golang.org/x/crypto/curve25519/curve25519.go
index 75f24ba..4b9a655 100644
--- a/libgo/go/golang.org/x/crypto/curve25519/curve25519.go
+++ b/libgo/go/golang.org/x/crypto/curve25519/curve25519.go
@@ -1,834 +1,95 @@
-// Copyright 2013 The Go Authors. All rights reserved.
+// Copyright 2019 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// We have an implementation in amd64 assembly so this code is only run on
-// non-amd64 platforms. The amd64 assembly does not support gccgo.
-// +build !amd64 gccgo appengine
-
-package curve25519
+// Package curve25519 provides an implementation of the X25519 function, which
+// performs scalar multiplication on the elliptic curve known as Curve25519.
+// See RFC 7748.
+package curve25519 // import "golang.org/x/crypto/curve25519"
 
 import (
-	"encoding/binary"
+	"crypto/subtle"
+	"fmt"
 )
 
-// This code is a port of the public domain, "ref10" implementation of
-// curve25519 from SUPERCOP 20130419 by D. J. Bernstein.
+// ScalarMult sets dst to the product scalar * point.
+//
+// Deprecated: when provided a low-order point, ScalarMult will set dst to all
+// zeroes, irrespective of the scalar. Instead, use the X25519 function, which
+// will return an error.
+func ScalarMult(dst, scalar, point *[32]byte) {
+	scalarMult(dst, scalar, point)
+}
 
-// fieldElement represents an element of the field GF(2^255 - 19). An element
-// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
-// t[3]+2^102 t[4]+...+2^230 t[9]. Bounds on each t[i] vary depending on
-// context.
-type fieldElement [10]int32
+// ScalarBaseMult sets dst to the product scalar * base where base is the
+// standard generator.
+//
+// It is recommended to use the X25519 function with Basepoint instead, as
+// copying into fixed size arrays can lead to unexpected bugs.
+func ScalarBaseMult(dst, scalar *[32]byte) {
+	ScalarMult(dst, scalar, &basePoint)
+}
 
-func feZero(fe *fieldElement) {
-	for i := range fe {
-		fe[i] = 0
+const (
+	// ScalarSize is the size of the scalar input to X25519.
+	ScalarSize = 32
+	// PointSize is the size of the point input to X25519.
+	PointSize = 32
+)
+
+// Basepoint is the canonical Curve25519 generator.
+var Basepoint []byte
+
+var basePoint = [32]byte{9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+
+func init() { Basepoint = basePoint[:] }
+
+func checkBasepoint() {
+	if subtle.ConstantTimeCompare(Basepoint, []byte{
+		0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	}) != 1 {
+		panic("curve25519: global Basepoint value was modified")
 	}
 }
 
-func feOne(fe *fieldElement) {
-	feZero(fe)
-	fe[0] = 1
+// X25519 returns the result of the scalar multiplication (scalar * point),
+// according to RFC 7748, Section 5. scalar, point and the return value are
+// slices of 32 bytes.
+//
+// scalar can be generated at random, for example with crypto/rand. point should
+// be either Basepoint or the output of another X25519 call.
+//
+// If point is Basepoint (but not if it's a different slice with the same
+// contents) a precomputed implementation might be used for performance.
+func X25519(scalar, point []byte) ([]byte, error) {
+	// Outline the body of function, to let the allocation be inlined in the
+	// caller, and possibly avoid escaping to the heap.
+	var dst [32]byte
+	return x25519(&dst, scalar, point)
 }
 
-func feAdd(dst, a, b *fieldElement) {
-	for i := range dst {
-		dst[i] = a[i] + b[i]
+func x25519(dst *[32]byte, scalar, point []byte) ([]byte, error) {
+	var in [32]byte
+	if l := len(scalar); l != 32 {
+		return nil, fmt.Errorf("bad scalar length: %d, expected %d", l, 32)
 	}
-}
-
-func feSub(dst, a, b *fieldElement) {
-	for i := range dst {
-		dst[i] = a[i] - b[i]
+	if l := len(point); l != 32 {
+		return nil, fmt.Errorf("bad point length: %d, expected %d", l, 32)
 	}
-}
-
-func feCopy(dst, src *fieldElement) {
-	for i := range dst {
-		dst[i] = src[i]
+	copy(in[:], scalar)
+	if &point[0] == &Basepoint[0] {
+		checkBasepoint()
+		ScalarBaseMult(dst, &in)
+	} else {
+		var base, zero [32]byte
+		copy(base[:], point)
+		ScalarMult(dst, &in, &base)
+		if subtle.ConstantTimeCompare(dst[:], zero[:]) == 1 {
+			return nil, fmt.Errorf("bad input point: low order point")
+		}
 	}
-}
-
-// feCSwap replaces (f,g) with (g,f) if b == 1; replaces (f,g) with (f,g) if b == 0.
-//
-// Preconditions: b in {0,1}.
-func feCSwap(f, g *fieldElement, b int32) {
-	b = -b
-	for i := range f {
-		t := b & (f[i] ^ g[i])
-		f[i] ^= t
-		g[i] ^= t
-	}
-}
-
-// load3 reads a 24-bit, little-endian value from in.
-func load3(in []byte) int64 {
-	var r int64
-	r = int64(in[0])
-	r |= int64(in[1]) << 8
-	r |= int64(in[2]) << 16
-	return r
-}
-
-// load4 reads a 32-bit, little-endian value from in.
-func load4(in []byte) int64 {
-	return int64(binary.LittleEndian.Uint32(in))
-}
-
-func feFromBytes(dst *fieldElement, src *[32]byte) {
-	h0 := load4(src[:])
-	h1 := load3(src[4:]) << 6
-	h2 := load3(src[7:]) << 5
-	h3 := load3(src[10:]) << 3
-	h4 := load3(src[13:]) << 2
-	h5 := load4(src[16:])
-	h6 := load3(src[20:]) << 7
-	h7 := load3(src[23:]) << 5
-	h8 := load3(src[26:]) << 4
-	h9 := (load3(src[29:]) & 0x7fffff) << 2
-
-	var carry [10]int64
-	carry[9] = (h9 + 1<<24) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-	carry[1] = (h1 + 1<<24) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[3] = (h3 + 1<<24) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[5] = (h5 + 1<<24) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-	carry[7] = (h7 + 1<<24) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-
-	carry[0] = (h0 + 1<<25) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[2] = (h2 + 1<<25) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[4] = (h4 + 1<<25) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[6] = (h6 + 1<<25) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-	carry[8] = (h8 + 1<<25) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-
-	dst[0] = int32(h0)
-	dst[1] = int32(h1)
-	dst[2] = int32(h2)
-	dst[3] = int32(h3)
-	dst[4] = int32(h4)
-	dst[5] = int32(h5)
-	dst[6] = int32(h6)
-	dst[7] = int32(h7)
-	dst[8] = int32(h8)
-	dst[9] = int32(h9)
-}
-
-// feToBytes marshals h to s.
-// Preconditions:
-//   |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-//
-// Write p=2^255-19; q=floor(h/p).
-// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
-//
-// Proof:
-//   Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
-//   Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4.
-//
-//   Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
-//   Then 0<y<1.
-//
-//   Write r=h-pq.
-//   Have 0<=r<=p-1=2^255-20.
-//   Thus 0<=r+19(2^-255)r<r+19(2^-255)2^255<=2^255-1.
-//
-//   Write x=r+19(2^-255)r+y.
-//   Then 0<x<2^255 so floor(2^(-255)x) = 0 so floor(q+2^(-255)x) = q.
-//
-//   Have q+2^(-255)x = 2^(-255)(h + 19 2^(-25) h9 + 2^(-1))
-//   so floor(2^(-255)(h + 19 2^(-25) h9 + 2^(-1))) = q.
-func feToBytes(s *[32]byte, h *fieldElement) {
-	var carry [10]int32
-
-	q := (19*h[9] + (1 << 24)) >> 25
-	q = (h[0] + q) >> 26
-	q = (h[1] + q) >> 25
-	q = (h[2] + q) >> 26
-	q = (h[3] + q) >> 25
-	q = (h[4] + q) >> 26
-	q = (h[5] + q) >> 25
-	q = (h[6] + q) >> 26
-	q = (h[7] + q) >> 25
-	q = (h[8] + q) >> 26
-	q = (h[9] + q) >> 25
-
-	// Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20.
-	h[0] += 19 * q
-	// Goal: Output h-2^255 q, which is between 0 and 2^255-20.
-
-	carry[0] = h[0] >> 26
-	h[1] += carry[0]
-	h[0] -= carry[0] << 26
-	carry[1] = h[1] >> 25
-	h[2] += carry[1]
-	h[1] -= carry[1] << 25
-	carry[2] = h[2] >> 26
-	h[3] += carry[2]
-	h[2] -= carry[2] << 26
-	carry[3] = h[3] >> 25
-	h[4] += carry[3]
-	h[3] -= carry[3] << 25
-	carry[4] = h[4] >> 26
-	h[5] += carry[4]
-	h[4] -= carry[4] << 26
-	carry[5] = h[5] >> 25
-	h[6] += carry[5]
-	h[5] -= carry[5] << 25
-	carry[6] = h[6] >> 26
-	h[7] += carry[6]
-	h[6] -= carry[6] << 26
-	carry[7] = h[7] >> 25
-	h[8] += carry[7]
-	h[7] -= carry[7] << 25
-	carry[8] = h[8] >> 26
-	h[9] += carry[8]
-	h[8] -= carry[8] << 26
-	carry[9] = h[9] >> 25
-	h[9] -= carry[9] << 25
-	// h10 = carry9
-
-	// Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20.
-	// Have h[0]+...+2^230 h[9] between 0 and 2^255-1;
-	// evidently 2^255 h10-2^255 q = 0.
-	// Goal: Output h[0]+...+2^230 h[9].
-
-	s[0] = byte(h[0] >> 0)
-	s[1] = byte(h[0] >> 8)
-	s[2] = byte(h[0] >> 16)
-	s[3] = byte((h[0] >> 24) | (h[1] << 2))
-	s[4] = byte(h[1] >> 6)
-	s[5] = byte(h[1] >> 14)
-	s[6] = byte((h[1] >> 22) | (h[2] << 3))
-	s[7] = byte(h[2] >> 5)
-	s[8] = byte(h[2] >> 13)
-	s[9] = byte((h[2] >> 21) | (h[3] << 5))
-	s[10] = byte(h[3] >> 3)
-	s[11] = byte(h[3] >> 11)
-	s[12] = byte((h[3] >> 19) | (h[4] << 6))
-	s[13] = byte(h[4] >> 2)
-	s[14] = byte(h[4] >> 10)
-	s[15] = byte(h[4] >> 18)
-	s[16] = byte(h[5] >> 0)
-	s[17] = byte(h[5] >> 8)
-	s[18] = byte(h[5] >> 16)
-	s[19] = byte((h[5] >> 24) | (h[6] << 1))
-	s[20] = byte(h[6] >> 7)
-	s[21] = byte(h[6] >> 15)
-	s[22] = byte((h[6] >> 23) | (h[7] << 3))
-	s[23] = byte(h[7] >> 5)
-	s[24] = byte(h[7] >> 13)
-	s[25] = byte((h[7] >> 21) | (h[8] << 4))
-	s[26] = byte(h[8] >> 4)
-	s[27] = byte(h[8] >> 12)
-	s[28] = byte((h[8] >> 20) | (h[9] << 6))
-	s[29] = byte(h[9] >> 2)
-	s[30] = byte(h[9] >> 10)
-	s[31] = byte(h[9] >> 18)
-}
-
-// feMul calculates h = f * g
-// Can overlap h with f or g.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//    |g| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-//
-// Notes on implementation strategy:
-//
-// Using schoolbook multiplication.
-// Karatsuba would save a little in some cost models.
-//
-// Most multiplications by 2 and 19 are 32-bit precomputations;
-// cheaper than 64-bit postcomputations.
-//
-// There is one remaining multiplication by 19 in the carry chain;
-// one *19 precomputation can be merged into this,
-// but the resulting data flow is considerably less clean.
-//
-// There are 12 carries below.
-// 10 of them are 2-way parallelizable and vectorizable.
-// Can get away with 11 carries, but then data flow is much deeper.
-//
-// With tighter constraints on inputs can squeeze carries into int32.
-func feMul(h, f, g *fieldElement) {
-	f0 := f[0]
-	f1 := f[1]
-	f2 := f[2]
-	f3 := f[3]
-	f4 := f[4]
-	f5 := f[5]
-	f6 := f[6]
-	f7 := f[7]
-	f8 := f[8]
-	f9 := f[9]
-	g0 := g[0]
-	g1 := g[1]
-	g2 := g[2]
-	g3 := g[3]
-	g4 := g[4]
-	g5 := g[5]
-	g6 := g[6]
-	g7 := g[7]
-	g8 := g[8]
-	g9 := g[9]
-	g1_19 := 19 * g1 // 1.4*2^29
-	g2_19 := 19 * g2 // 1.4*2^30; still ok
-	g3_19 := 19 * g3
-	g4_19 := 19 * g4
-	g5_19 := 19 * g5
-	g6_19 := 19 * g6
-	g7_19 := 19 * g7
-	g8_19 := 19 * g8
-	g9_19 := 19 * g9
-	f1_2 := 2 * f1
-	f3_2 := 2 * f3
-	f5_2 := 2 * f5
-	f7_2 := 2 * f7
-	f9_2 := 2 * f9
-	f0g0 := int64(f0) * int64(g0)
-	f0g1 := int64(f0) * int64(g1)
-	f0g2 := int64(f0) * int64(g2)
-	f0g3 := int64(f0) * int64(g3)
-	f0g4 := int64(f0) * int64(g4)
-	f0g5 := int64(f0) * int64(g5)
-	f0g6 := int64(f0) * int64(g6)
-	f0g7 := int64(f0) * int64(g7)
-	f0g8 := int64(f0) * int64(g8)
-	f0g9 := int64(f0) * int64(g9)
-	f1g0 := int64(f1) * int64(g0)
-	f1g1_2 := int64(f1_2) * int64(g1)
-	f1g2 := int64(f1) * int64(g2)
-	f1g3_2 := int64(f1_2) * int64(g3)
-	f1g4 := int64(f1) * int64(g4)
-	f1g5_2 := int64(f1_2) * int64(g5)
-	f1g6 := int64(f1) * int64(g6)
-	f1g7_2 := int64(f1_2) * int64(g7)
-	f1g8 := int64(f1) * int64(g8)
-	f1g9_38 := int64(f1_2) * int64(g9_19)
-	f2g0 := int64(f2) * int64(g0)
-	f2g1 := int64(f2) * int64(g1)
-	f2g2 := int64(f2) * int64(g2)
-	f2g3 := int64(f2) * int64(g3)
-	f2g4 := int64(f2) * int64(g4)
-	f2g5 := int64(f2) * int64(g5)
-	f2g6 := int64(f2) * int64(g6)
-	f2g7 := int64(f2) * int64(g7)
-	f2g8_19 := int64(f2) * int64(g8_19)
-	f2g9_19 := int64(f2) * int64(g9_19)
-	f3g0 := int64(f3) * int64(g0)
-	f3g1_2 := int64(f3_2) * int64(g1)
-	f3g2 := int64(f3) * int64(g2)
-	f3g3_2 := int64(f3_2) * int64(g3)
-	f3g4 := int64(f3) * int64(g4)
-	f3g5_2 := int64(f3_2) * int64(g5)
-	f3g6 := int64(f3) * int64(g6)
-	f3g7_38 := int64(f3_2) * int64(g7_19)
-	f3g8_19 := int64(f3) * int64(g8_19)
-	f3g9_38 := int64(f3_2) * int64(g9_19)
-	f4g0 := int64(f4) * int64(g0)
-	f4g1 := int64(f4) * int64(g1)
-	f4g2 := int64(f4) * int64(g2)
-	f4g3 := int64(f4) * int64(g3)
-	f4g4 := int64(f4) * int64(g4)
-	f4g5 := int64(f4) * int64(g5)
-	f4g6_19 := int64(f4) * int64(g6_19)
-	f4g7_19 := int64(f4) * int64(g7_19)
-	f4g8_19 := int64(f4) * int64(g8_19)
-	f4g9_19 := int64(f4) * int64(g9_19)
-	f5g0 := int64(f5) * int64(g0)
-	f5g1_2 := int64(f5_2) * int64(g1)
-	f5g2 := int64(f5) * int64(g2)
-	f5g3_2 := int64(f5_2) * int64(g3)
-	f5g4 := int64(f5) * int64(g4)
-	f5g5_38 := int64(f5_2) * int64(g5_19)
-	f5g6_19 := int64(f5) * int64(g6_19)
-	f5g7_38 := int64(f5_2) * int64(g7_19)
-	f5g8_19 := int64(f5) * int64(g8_19)
-	f5g9_38 := int64(f5_2) * int64(g9_19)
-	f6g0 := int64(f6) * int64(g0)
-	f6g1 := int64(f6) * int64(g1)
-	f6g2 := int64(f6) * int64(g2)
-	f6g3 := int64(f6) * int64(g3)
-	f6g4_19 := int64(f6) * int64(g4_19)
-	f6g5_19 := int64(f6) * int64(g5_19)
-	f6g6_19 := int64(f6) * int64(g6_19)
-	f6g7_19 := int64(f6) * int64(g7_19)
-	f6g8_19 := int64(f6) * int64(g8_19)
-	f6g9_19 := int64(f6) * int64(g9_19)
-	f7g0 := int64(f7) * int64(g0)
-	f7g1_2 := int64(f7_2) * int64(g1)
-	f7g2 := int64(f7) * int64(g2)
-	f7g3_38 := int64(f7_2) * int64(g3_19)
-	f7g4_19 := int64(f7) * int64(g4_19)
-	f7g5_38 := int64(f7_2) * int64(g5_19)
-	f7g6_19 := int64(f7) * int64(g6_19)
-	f7g7_38 := int64(f7_2) * int64(g7_19)
-	f7g8_19 := int64(f7) * int64(g8_19)
-	f7g9_38 := int64(f7_2) * int64(g9_19)
-	f8g0 := int64(f8) * int64(g0)
-	f8g1 := int64(f8) * int64(g1)
-	f8g2_19 := int64(f8) * int64(g2_19)
-	f8g3_19 := int64(f8) * int64(g3_19)
-	f8g4_19 := int64(f8) * int64(g4_19)
-	f8g5_19 := int64(f8) * int64(g5_19)
-	f8g6_19 := int64(f8) * int64(g6_19)
-	f8g7_19 := int64(f8) * int64(g7_19)
-	f8g8_19 := int64(f8) * int64(g8_19)
-	f8g9_19 := int64(f8) * int64(g9_19)
-	f9g0 := int64(f9) * int64(g0)
-	f9g1_38 := int64(f9_2) * int64(g1_19)
-	f9g2_19 := int64(f9) * int64(g2_19)
-	f9g3_38 := int64(f9_2) * int64(g3_19)
-	f9g4_19 := int64(f9) * int64(g4_19)
-	f9g5_38 := int64(f9_2) * int64(g5_19)
-	f9g6_19 := int64(f9) * int64(g6_19)
-	f9g7_38 := int64(f9_2) * int64(g7_19)
-	f9g8_19 := int64(f9) * int64(g8_19)
-	f9g9_38 := int64(f9_2) * int64(g9_19)
-	h0 := f0g0 + f1g9_38 + f2g8_19 + f3g7_38 + f4g6_19 + f5g5_38 + f6g4_19 + f7g3_38 + f8g2_19 + f9g1_38
-	h1 := f0g1 + f1g0 + f2g9_19 + f3g8_19 + f4g7_19 + f5g6_19 + f6g5_19 + f7g4_19 + f8g3_19 + f9g2_19
-	h2 := f0g2 + f1g1_2 + f2g0 + f3g9_38 + f4g8_19 + f5g7_38 + f6g6_19 + f7g5_38 + f8g4_19 + f9g3_38
-	h3 := f0g3 + f1g2 + f2g1 + f3g0 + f4g9_19 + f5g8_19 + f6g7_19 + f7g6_19 + f8g5_19 + f9g4_19
-	h4 := f0g4 + f1g3_2 + f2g2 + f3g1_2 + f4g0 + f5g9_38 + f6g8_19 + f7g7_38 + f8g6_19 + f9g5_38
-	h5 := f0g5 + f1g4 + f2g3 + f3g2 + f4g1 + f5g0 + f6g9_19 + f7g8_19 + f8g7_19 + f9g6_19
-	h6 := f0g6 + f1g5_2 + f2g4 + f3g3_2 + f4g2 + f5g1_2 + f6g0 + f7g9_38 + f8g8_19 + f9g7_38
-	h7 := f0g7 + f1g6 + f2g5 + f3g4 + f4g3 + f5g2 + f6g1 + f7g0 + f8g9_19 + f9g8_19
-	h8 := f0g8 + f1g7_2 + f2g6 + f3g5_2 + f4g4 + f5g3_2 + f6g2 + f7g1_2 + f8g0 + f9g9_38
-	h9 := f0g9 + f1g8 + f2g7 + f3g6 + f4g5 + f5g4 + f6g3 + f7g2 + f8g1 + f9g0
-	var carry [10]int64
-
-	// |h0| <= (1.1*1.1*2^52*(1+19+19+19+19)+1.1*1.1*2^50*(38+38+38+38+38))
-	//   i.e. |h0| <= 1.2*2^59; narrower ranges for h2, h4, h6, h8
-	// |h1| <= (1.1*1.1*2^51*(1+1+19+19+19+19+19+19+19+19))
-	//   i.e. |h1| <= 1.5*2^58; narrower ranges for h3, h5, h7, h9
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	// |h0| <= 2^25
-	// |h4| <= 2^25
-	// |h1| <= 1.51*2^58
-	// |h5| <= 1.51*2^58
-
-	carry[1] = (h1 + (1 << 24)) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[5] = (h5 + (1 << 24)) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-	// |h1| <= 2^24; from now on fits into int32
-	// |h5| <= 2^24; from now on fits into int32
-	// |h2| <= 1.21*2^59
-	// |h6| <= 1.21*2^59
-
-	carry[2] = (h2 + (1 << 25)) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[6] = (h6 + (1 << 25)) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-	// |h2| <= 2^25; from now on fits into int32 unchanged
-	// |h6| <= 2^25; from now on fits into int32 unchanged
-	// |h3| <= 1.51*2^58
-	// |h7| <= 1.51*2^58
-
-	carry[3] = (h3 + (1 << 24)) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[7] = (h7 + (1 << 24)) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-	// |h3| <= 2^24; from now on fits into int32 unchanged
-	// |h7| <= 2^24; from now on fits into int32 unchanged
-	// |h4| <= 1.52*2^33
-	// |h8| <= 1.52*2^33
-
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[8] = (h8 + (1 << 25)) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-	// |h4| <= 2^25; from now on fits into int32 unchanged
-	// |h8| <= 2^25; from now on fits into int32 unchanged
-	// |h5| <= 1.01*2^24
-	// |h9| <= 1.51*2^58
-
-	carry[9] = (h9 + (1 << 24)) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-	// |h9| <= 2^24; from now on fits into int32 unchanged
-	// |h0| <= 1.8*2^37
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	// |h0| <= 2^25; from now on fits into int32 unchanged
-	// |h1| <= 1.01*2^24
-
-	h[0] = int32(h0)
-	h[1] = int32(h1)
-	h[2] = int32(h2)
-	h[3] = int32(h3)
-	h[4] = int32(h4)
-	h[5] = int32(h5)
-	h[6] = int32(h6)
-	h[7] = int32(h7)
-	h[8] = int32(h8)
-	h[9] = int32(h9)
-}
-
-// feSquare calculates h = f*f. Can overlap h with f.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-func feSquare(h, f *fieldElement) {
-	f0 := f[0]
-	f1 := f[1]
-	f2 := f[2]
-	f3 := f[3]
-	f4 := f[4]
-	f5 := f[5]
-	f6 := f[6]
-	f7 := f[7]
-	f8 := f[8]
-	f9 := f[9]
-	f0_2 := 2 * f0
-	f1_2 := 2 * f1
-	f2_2 := 2 * f2
-	f3_2 := 2 * f3
-	f4_2 := 2 * f4
-	f5_2 := 2 * f5
-	f6_2 := 2 * f6
-	f7_2 := 2 * f7
-	f5_38 := 38 * f5 // 1.31*2^30
-	f6_19 := 19 * f6 // 1.31*2^30
-	f7_38 := 38 * f7 // 1.31*2^30
-	f8_19 := 19 * f8 // 1.31*2^30
-	f9_38 := 38 * f9 // 1.31*2^30
-	f0f0 := int64(f0) * int64(f0)
-	f0f1_2 := int64(f0_2) * int64(f1)
-	f0f2_2 := int64(f0_2) * int64(f2)
-	f0f3_2 := int64(f0_2) * int64(f3)
-	f0f4_2 := int64(f0_2) * int64(f4)
-	f0f5_2 := int64(f0_2) * int64(f5)
-	f0f6_2 := int64(f0_2) * int64(f6)
-	f0f7_2 := int64(f0_2) * int64(f7)
-	f0f8_2 := int64(f0_2) * int64(f8)
-	f0f9_2 := int64(f0_2) * int64(f9)
-	f1f1_2 := int64(f1_2) * int64(f1)
-	f1f2_2 := int64(f1_2) * int64(f2)
-	f1f3_4 := int64(f1_2) * int64(f3_2)
-	f1f4_2 := int64(f1_2) * int64(f4)
-	f1f5_4 := int64(f1_2) * int64(f5_2)
-	f1f6_2 := int64(f1_2) * int64(f6)
-	f1f7_4 := int64(f1_2) * int64(f7_2)
-	f1f8_2 := int64(f1_2) * int64(f8)
-	f1f9_76 := int64(f1_2) * int64(f9_38)
-	f2f2 := int64(f2) * int64(f2)
-	f2f3_2 := int64(f2_2) * int64(f3)
-	f2f4_2 := int64(f2_2) * int64(f4)
-	f2f5_2 := int64(f2_2) * int64(f5)
-	f2f6_2 := int64(f2_2) * int64(f6)
-	f2f7_2 := int64(f2_2) * int64(f7)
-	f2f8_38 := int64(f2_2) * int64(f8_19)
-	f2f9_38 := int64(f2) * int64(f9_38)
-	f3f3_2 := int64(f3_2) * int64(f3)
-	f3f4_2 := int64(f3_2) * int64(f4)
-	f3f5_4 := int64(f3_2) * int64(f5_2)
-	f3f6_2 := int64(f3_2) * int64(f6)
-	f3f7_76 := int64(f3_2) * int64(f7_38)
-	f3f8_38 := int64(f3_2) * int64(f8_19)
-	f3f9_76 := int64(f3_2) * int64(f9_38)
-	f4f4 := int64(f4) * int64(f4)
-	f4f5_2 := int64(f4_2) * int64(f5)
-	f4f6_38 := int64(f4_2) * int64(f6_19)
-	f4f7_38 := int64(f4) * int64(f7_38)
-	f4f8_38 := int64(f4_2) * int64(f8_19)
-	f4f9_38 := int64(f4) * int64(f9_38)
-	f5f5_38 := int64(f5) * int64(f5_38)
-	f5f6_38 := int64(f5_2) * int64(f6_19)
-	f5f7_76 := int64(f5_2) * int64(f7_38)
-	f5f8_38 := int64(f5_2) * int64(f8_19)
-	f5f9_76 := int64(f5_2) * int64(f9_38)
-	f6f6_19 := int64(f6) * int64(f6_19)
-	f6f7_38 := int64(f6) * int64(f7_38)
-	f6f8_38 := int64(f6_2) * int64(f8_19)
-	f6f9_38 := int64(f6) * int64(f9_38)
-	f7f7_38 := int64(f7) * int64(f7_38)
-	f7f8_38 := int64(f7_2) * int64(f8_19)
-	f7f9_76 := int64(f7_2) * int64(f9_38)
-	f8f8_19 := int64(f8) * int64(f8_19)
-	f8f9_38 := int64(f8) * int64(f9_38)
-	f9f9_38 := int64(f9) * int64(f9_38)
-	h0 := f0f0 + f1f9_76 + f2f8_38 + f3f7_76 + f4f6_38 + f5f5_38
-	h1 := f0f1_2 + f2f9_38 + f3f8_38 + f4f7_38 + f5f6_38
-	h2 := f0f2_2 + f1f1_2 + f3f9_76 + f4f8_38 + f5f7_76 + f6f6_19
-	h3 := f0f3_2 + f1f2_2 + f4f9_38 + f5f8_38 + f6f7_38
-	h4 := f0f4_2 + f1f3_4 + f2f2 + f5f9_76 + f6f8_38 + f7f7_38
-	h5 := f0f5_2 + f1f4_2 + f2f3_2 + f6f9_38 + f7f8_38
-	h6 := f0f6_2 + f1f5_4 + f2f4_2 + f3f3_2 + f7f9_76 + f8f8_19
-	h7 := f0f7_2 + f1f6_2 + f2f5_2 + f3f4_2 + f8f9_38
-	h8 := f0f8_2 + f1f7_4 + f2f6_2 + f3f5_4 + f4f4 + f9f9_38
-	h9 := f0f9_2 + f1f8_2 + f2f7_2 + f3f6_2 + f4f5_2
-	var carry [10]int64
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-
-	carry[1] = (h1 + (1 << 24)) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[5] = (h5 + (1 << 24)) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-
-	carry[2] = (h2 + (1 << 25)) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[6] = (h6 + (1 << 25)) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-
-	carry[3] = (h3 + (1 << 24)) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[7] = (h7 + (1 << 24)) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[8] = (h8 + (1 << 25)) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-
-	carry[9] = (h9 + (1 << 24)) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-
-	h[0] = int32(h0)
-	h[1] = int32(h1)
-	h[2] = int32(h2)
-	h[3] = int32(h3)
-	h[4] = int32(h4)
-	h[5] = int32(h5)
-	h[6] = int32(h6)
-	h[7] = int32(h7)
-	h[8] = int32(h8)
-	h[9] = int32(h9)
-}
-
-// feMul121666 calculates h = f * 121666. Can overlap h with f.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-func feMul121666(h, f *fieldElement) {
-	h0 := int64(f[0]) * 121666
-	h1 := int64(f[1]) * 121666
-	h2 := int64(f[2]) * 121666
-	h3 := int64(f[3]) * 121666
-	h4 := int64(f[4]) * 121666
-	h5 := int64(f[5]) * 121666
-	h6 := int64(f[6]) * 121666
-	h7 := int64(f[7]) * 121666
-	h8 := int64(f[8]) * 121666
-	h9 := int64(f[9]) * 121666
-	var carry [10]int64
-
-	carry[9] = (h9 + (1 << 24)) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-	carry[1] = (h1 + (1 << 24)) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[3] = (h3 + (1 << 24)) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[5] = (h5 + (1 << 24)) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-	carry[7] = (h7 + (1 << 24)) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[2] = (h2 + (1 << 25)) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[6] = (h6 + (1 << 25)) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-	carry[8] = (h8 + (1 << 25)) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-
-	h[0] = int32(h0)
-	h[1] = int32(h1)
-	h[2] = int32(h2)
-	h[3] = int32(h3)
-	h[4] = int32(h4)
-	h[5] = int32(h5)
-	h[6] = int32(h6)
-	h[7] = int32(h7)
-	h[8] = int32(h8)
-	h[9] = int32(h9)
-}
-
-// feInvert sets out = z^-1.
-func feInvert(out, z *fieldElement) {
-	var t0, t1, t2, t3 fieldElement
-	var i int
-
-	feSquare(&t0, z)
-	for i = 1; i < 1; i++ {
-		feSquare(&t0, &t0)
-	}
-	feSquare(&t1, &t0)
-	for i = 1; i < 2; i++ {
-		feSquare(&t1, &t1)
-	}
-	feMul(&t1, z, &t1)
-	feMul(&t0, &t0, &t1)
-	feSquare(&t2, &t0)
-	for i = 1; i < 1; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t1, &t2)
-	feSquare(&t2, &t1)
-	for i = 1; i < 5; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t2, &t1)
-	feSquare(&t2, &t1)
-	for i = 1; i < 10; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t2, &t2, &t1)
-	feSquare(&t3, &t2)
-	for i = 1; i < 20; i++ {
-		feSquare(&t3, &t3)
-	}
-	feMul(&t2, &t3, &t2)
-	feSquare(&t2, &t2)
-	for i = 1; i < 10; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t2, &t1)
-	feSquare(&t2, &t1)
-	for i = 1; i < 50; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t2, &t2, &t1)
-	feSquare(&t3, &t2)
-	for i = 1; i < 100; i++ {
-		feSquare(&t3, &t3)
-	}
-	feMul(&t2, &t3, &t2)
-	feSquare(&t2, &t2)
-	for i = 1; i < 50; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t2, &t1)
-	feSquare(&t1, &t1)
-	for i = 1; i < 5; i++ {
-		feSquare(&t1, &t1)
-	}
-	feMul(out, &t1, &t0)
-}
-
-func scalarMult(out, in, base *[32]byte) {
-	var e [32]byte
-
-	copy(e[:], in[:])
-	e[0] &= 248
-	e[31] &= 127
-	e[31] |= 64
-
-	var x1, x2, z2, x3, z3, tmp0, tmp1 fieldElement
-	feFromBytes(&x1, base)
-	feOne(&x2)
-	feCopy(&x3, &x1)
-	feOne(&z3)
-
-	swap := int32(0)
-	for pos := 254; pos >= 0; pos-- {
-		b := e[pos/8] >> uint(pos&7)
-		b &= 1
-		swap ^= int32(b)
-		feCSwap(&x2, &x3, swap)
-		feCSwap(&z2, &z3, swap)
-		swap = int32(b)
-
-		feSub(&tmp0, &x3, &z3)
-		feSub(&tmp1, &x2, &z2)
-		feAdd(&x2, &x2, &z2)
-		feAdd(&z2, &x3, &z3)
-		feMul(&z3, &tmp0, &x2)
-		feMul(&z2, &z2, &tmp1)
-		feSquare(&tmp0, &tmp1)
-		feSquare(&tmp1, &x2)
-		feAdd(&x3, &z3, &z2)
-		feSub(&z2, &z3, &z2)
-		feMul(&x2, &tmp1, &tmp0)
-		feSub(&tmp1, &tmp1, &tmp0)
-		feSquare(&z2, &z2)
-		feMul121666(&z3, &tmp1)
-		feSquare(&x3, &x3)
-		feAdd(&tmp0, &tmp0, &z3)
-		feMul(&z3, &x1, &z2)
-		feMul(&z2, &tmp1, &tmp0)
-	}
-
-	feCSwap(&x2, &x3, swap)
-	feCSwap(&z2, &z3, swap)
-
-	feInvert(&z2, &z2)
-	feMul(&x2, &x2, &z2)
-	feToBytes(out, &x2)
+	return dst[:], nil
 }
diff --git a/libgo/go/golang.org/x/crypto/curve25519/mont25519_amd64.go b/libgo/go/golang.org/x/crypto/curve25519/curve25519_amd64.go
similarity index 99%
rename from libgo/go/golang.org/x/crypto/curve25519/mont25519_amd64.go
rename to libgo/go/golang.org/x/crypto/curve25519/curve25519_amd64.go
index 5822bd5..5120b77 100644
--- a/libgo/go/golang.org/x/crypto/curve25519/mont25519_amd64.go
+++ b/libgo/go/golang.org/x/crypto/curve25519/curve25519_amd64.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build amd64,!gccgo,!appengine
+// +build amd64,!gccgo,!appengine,!purego
 
 package curve25519
 
diff --git a/libgo/go/golang.org/x/crypto/curve25519/curve25519_generic.go b/libgo/go/golang.org/x/crypto/curve25519/curve25519_generic.go
new file mode 100644
index 0000000..c43b13f
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/curve25519/curve25519_generic.go
@@ -0,0 +1,828 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package curve25519
+
+import "encoding/binary"
+
+// This code is a port of the public domain, "ref10" implementation of
+// curve25519 from SUPERCOP 20130419 by D. J. Bernstein.
+
+// fieldElement represents an element of the field GF(2^255 - 19). An element
+// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
+// t[3]+2^102 t[4]+...+2^230 t[9]. Bounds on each t[i] vary depending on
+// context.
+type fieldElement [10]int32
+
+func feZero(fe *fieldElement) {
+	for i := range fe {
+		fe[i] = 0
+	}
+}
+
+func feOne(fe *fieldElement) {
+	feZero(fe)
+	fe[0] = 1
+}
+
+func feAdd(dst, a, b *fieldElement) {
+	for i := range dst {
+		dst[i] = a[i] + b[i]
+	}
+}
+
+func feSub(dst, a, b *fieldElement) {
+	for i := range dst {
+		dst[i] = a[i] - b[i]
+	}
+}
+
+func feCopy(dst, src *fieldElement) {
+	for i := range dst {
+		dst[i] = src[i]
+	}
+}
+
+// feCSwap replaces (f,g) with (g,f) if b == 1; replaces (f,g) with (f,g) if b == 0.
+//
+// Preconditions: b in {0,1}.
+func feCSwap(f, g *fieldElement, b int32) {
+	b = -b
+	for i := range f {
+		t := b & (f[i] ^ g[i])
+		f[i] ^= t
+		g[i] ^= t
+	}
+}
+
+// load3 reads a 24-bit, little-endian value from in.
+func load3(in []byte) int64 {
+	var r int64
+	r = int64(in[0])
+	r |= int64(in[1]) << 8
+	r |= int64(in[2]) << 16
+	return r
+}
+
+// load4 reads a 32-bit, little-endian value from in.
+func load4(in []byte) int64 {
+	return int64(binary.LittleEndian.Uint32(in))
+}
+
+func feFromBytes(dst *fieldElement, src *[32]byte) {
+	h0 := load4(src[:])
+	h1 := load3(src[4:]) << 6
+	h2 := load3(src[7:]) << 5
+	h3 := load3(src[10:]) << 3
+	h4 := load3(src[13:]) << 2
+	h5 := load4(src[16:])
+	h6 := load3(src[20:]) << 7
+	h7 := load3(src[23:]) << 5
+	h8 := load3(src[26:]) << 4
+	h9 := (load3(src[29:]) & 0x7fffff) << 2
+
+	var carry [10]int64
+	carry[9] = (h9 + 1<<24) >> 25
+	h0 += carry[9] * 19
+	h9 -= carry[9] << 25
+	carry[1] = (h1 + 1<<24) >> 25
+	h2 += carry[1]
+	h1 -= carry[1] << 25
+	carry[3] = (h3 + 1<<24) >> 25
+	h4 += carry[3]
+	h3 -= carry[3] << 25
+	carry[5] = (h5 + 1<<24) >> 25
+	h6 += carry[5]
+	h5 -= carry[5] << 25
+	carry[7] = (h7 + 1<<24) >> 25
+	h8 += carry[7]
+	h7 -= carry[7] << 25
+
+	carry[0] = (h0 + 1<<25) >> 26
+	h1 += carry[0]
+	h0 -= carry[0] << 26
+	carry[2] = (h2 + 1<<25) >> 26
+	h3 += carry[2]
+	h2 -= carry[2] << 26
+	carry[4] = (h4 + 1<<25) >> 26
+	h5 += carry[4]
+	h4 -= carry[4] << 26
+	carry[6] = (h6 + 1<<25) >> 26
+	h7 += carry[6]
+	h6 -= carry[6] << 26
+	carry[8] = (h8 + 1<<25) >> 26
+	h9 += carry[8]
+	h8 -= carry[8] << 26
+
+	dst[0] = int32(h0)
+	dst[1] = int32(h1)
+	dst[2] = int32(h2)
+	dst[3] = int32(h3)
+	dst[4] = int32(h4)
+	dst[5] = int32(h5)
+	dst[6] = int32(h6)
+	dst[7] = int32(h7)
+	dst[8] = int32(h8)
+	dst[9] = int32(h9)
+}
+
+// feToBytes marshals h to s.
+// Preconditions:
+//   |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+//
+// Write p=2^255-19; q=floor(h/p).
+// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
+//
+// Proof:
+//   Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
+//   Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4.
+//
+//   Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
+//   Then 0<y<1.
+//
+//   Write r=h-pq.
+//   Have 0<=r<=p-1=2^255-20.
+//   Thus 0<=r+19(2^-255)r<r+19(2^-255)2^255<=2^255-1.
+//
+//   Write x=r+19(2^-255)r+y.
+//   Then 0<x<2^255 so floor(2^(-255)x) = 0 so floor(q+2^(-255)x) = q.
+//
+//   Have q+2^(-255)x = 2^(-255)(h + 19 2^(-25) h9 + 2^(-1))
+//   so floor(2^(-255)(h + 19 2^(-25) h9 + 2^(-1))) = q.
+func feToBytes(s *[32]byte, h *fieldElement) {
+	var carry [10]int32
+
+	q := (19*h[9] + (1 << 24)) >> 25
+	q = (h[0] + q) >> 26
+	q = (h[1] + q) >> 25
+	q = (h[2] + q) >> 26
+	q = (h[3] + q) >> 25
+	q = (h[4] + q) >> 26
+	q = (h[5] + q) >> 25
+	q = (h[6] + q) >> 26
+	q = (h[7] + q) >> 25
+	q = (h[8] + q) >> 26
+	q = (h[9] + q) >> 25
+
+	// Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20.
+	h[0] += 19 * q
+	// Goal: Output h-2^255 q, which is between 0 and 2^255-20.
+
+	carry[0] = h[0] >> 26
+	h[1] += carry[0]
+	h[0] -= carry[0] << 26
+	carry[1] = h[1] >> 25
+	h[2] += carry[1]
+	h[1] -= carry[1] << 25
+	carry[2] = h[2] >> 26
+	h[3] += carry[2]
+	h[2] -= carry[2] << 26
+	carry[3] = h[3] >> 25
+	h[4] += carry[3]
+	h[3] -= carry[3] << 25
+	carry[4] = h[4] >> 26
+	h[5] += carry[4]
+	h[4] -= carry[4] << 26
+	carry[5] = h[5] >> 25
+	h[6] += carry[5]
+	h[5] -= carry[5] << 25
+	carry[6] = h[6] >> 26
+	h[7] += carry[6]
+	h[6] -= carry[6] << 26
+	carry[7] = h[7] >> 25
+	h[8] += carry[7]
+	h[7] -= carry[7] << 25
+	carry[8] = h[8] >> 26
+	h[9] += carry[8]
+	h[8] -= carry[8] << 26
+	carry[9] = h[9] >> 25
+	h[9] -= carry[9] << 25
+	// h10 = carry9
+
+	// Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20.
+	// Have h[0]+...+2^230 h[9] between 0 and 2^255-1;
+	// evidently 2^255 h10-2^255 q = 0.
+	// Goal: Output h[0]+...+2^230 h[9].
+
+	s[0] = byte(h[0] >> 0)
+	s[1] = byte(h[0] >> 8)
+	s[2] = byte(h[0] >> 16)
+	s[3] = byte((h[0] >> 24) | (h[1] << 2))
+	s[4] = byte(h[1] >> 6)
+	s[5] = byte(h[1] >> 14)
+	s[6] = byte((h[1] >> 22) | (h[2] << 3))
+	s[7] = byte(h[2] >> 5)
+	s[8] = byte(h[2] >> 13)
+	s[9] = byte((h[2] >> 21) | (h[3] << 5))
+	s[10] = byte(h[3] >> 3)
+	s[11] = byte(h[3] >> 11)
+	s[12] = byte((h[3] >> 19) | (h[4] << 6))
+	s[13] = byte(h[4] >> 2)
+	s[14] = byte(h[4] >> 10)
+	s[15] = byte(h[4] >> 18)
+	s[16] = byte(h[5] >> 0)
+	s[17] = byte(h[5] >> 8)
+	s[18] = byte(h[5] >> 16)
+	s[19] = byte((h[5] >> 24) | (h[6] << 1))
+	s[20] = byte(h[6] >> 7)
+	s[21] = byte(h[6] >> 15)
+	s[22] = byte((h[6] >> 23) | (h[7] << 3))
+	s[23] = byte(h[7] >> 5)
+	s[24] = byte(h[7] >> 13)
+	s[25] = byte((h[7] >> 21) | (h[8] << 4))
+	s[26] = byte(h[8] >> 4)
+	s[27] = byte(h[8] >> 12)
+	s[28] = byte((h[8] >> 20) | (h[9] << 6))
+	s[29] = byte(h[9] >> 2)
+	s[30] = byte(h[9] >> 10)
+	s[31] = byte(h[9] >> 18)
+}
+
+// feMul calculates h = f * g
+// Can overlap h with f or g.
+//
+// Preconditions:
+//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+//    |g| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+//
+// Postconditions:
+//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+//
+// Notes on implementation strategy:
+//
+// Using schoolbook multiplication.
+// Karatsuba would save a little in some cost models.
+//
+// Most multiplications by 2 and 19 are 32-bit precomputations;
+// cheaper than 64-bit postcomputations.
+//
+// There is one remaining multiplication by 19 in the carry chain;
+// one *19 precomputation can be merged into this,
+// but the resulting data flow is considerably less clean.
+//
+// There are 12 carries below.
+// 10 of them are 2-way parallelizable and vectorizable.
+// Can get away with 11 carries, but then data flow is much deeper.
+//
+// With tighter constraints on inputs can squeeze carries into int32.
+func feMul(h, f, g *fieldElement) {
+	f0 := f[0]
+	f1 := f[1]
+	f2 := f[2]
+	f3 := f[3]
+	f4 := f[4]
+	f5 := f[5]
+	f6 := f[6]
+	f7 := f[7]
+	f8 := f[8]
+	f9 := f[9]
+	g0 := g[0]
+	g1 := g[1]
+	g2 := g[2]
+	g3 := g[3]
+	g4 := g[4]
+	g5 := g[5]
+	g6 := g[6]
+	g7 := g[7]
+	g8 := g[8]
+	g9 := g[9]
+	g1_19 := 19 * g1 // 1.4*2^29
+	g2_19 := 19 * g2 // 1.4*2^30; still ok
+	g3_19 := 19 * g3
+	g4_19 := 19 * g4
+	g5_19 := 19 * g5
+	g6_19 := 19 * g6
+	g7_19 := 19 * g7
+	g8_19 := 19 * g8
+	g9_19 := 19 * g9
+	f1_2 := 2 * f1
+	f3_2 := 2 * f3
+	f5_2 := 2 * f5
+	f7_2 := 2 * f7
+	f9_2 := 2 * f9
+	f0g0 := int64(f0) * int64(g0)
+	f0g1 := int64(f0) * int64(g1)
+	f0g2 := int64(f0) * int64(g2)
+	f0g3 := int64(f0) * int64(g3)
+	f0g4 := int64(f0) * int64(g4)
+	f0g5 := int64(f0) * int64(g5)
+	f0g6 := int64(f0) * int64(g6)
+	f0g7 := int64(f0) * int64(g7)
+	f0g8 := int64(f0) * int64(g8)
+	f0g9 := int64(f0) * int64(g9)
+	f1g0 := int64(f1) * int64(g0)
+	f1g1_2 := int64(f1_2) * int64(g1)
+	f1g2 := int64(f1) * int64(g2)
+	f1g3_2 := int64(f1_2) * int64(g3)
+	f1g4 := int64(f1) * int64(g4)
+	f1g5_2 := int64(f1_2) * int64(g5)
+	f1g6 := int64(f1) * int64(g6)
+	f1g7_2 := int64(f1_2) * int64(g7)
+	f1g8 := int64(f1) * int64(g8)
+	f1g9_38 := int64(f1_2) * int64(g9_19)
+	f2g0 := int64(f2) * int64(g0)
+	f2g1 := int64(f2) * int64(g1)
+	f2g2 := int64(f2) * int64(g2)
+	f2g3 := int64(f2) * int64(g3)
+	f2g4 := int64(f2) * int64(g4)
+	f2g5 := int64(f2) * int64(g5)
+	f2g6 := int64(f2) * int64(g6)
+	f2g7 := int64(f2) * int64(g7)
+	f2g8_19 := int64(f2) * int64(g8_19)
+	f2g9_19 := int64(f2) * int64(g9_19)
+	f3g0 := int64(f3) * int64(g0)
+	f3g1_2 := int64(f3_2) * int64(g1)
+	f3g2 := int64(f3) * int64(g2)
+	f3g3_2 := int64(f3_2) * int64(g3)
+	f3g4 := int64(f3) * int64(g4)
+	f3g5_2 := int64(f3_2) * int64(g5)
+	f3g6 := int64(f3) * int64(g6)
+	f3g7_38 := int64(f3_2) * int64(g7_19)
+	f3g8_19 := int64(f3) * int64(g8_19)
+	f3g9_38 := int64(f3_2) * int64(g9_19)
+	f4g0 := int64(f4) * int64(g0)
+	f4g1 := int64(f4) * int64(g1)
+	f4g2 := int64(f4) * int64(g2)
+	f4g3 := int64(f4) * int64(g3)
+	f4g4 := int64(f4) * int64(g4)
+	f4g5 := int64(f4) * int64(g5)
+	f4g6_19 := int64(f4) * int64(g6_19)
+	f4g7_19 := int64(f4) * int64(g7_19)
+	f4g8_19 := int64(f4) * int64(g8_19)
+	f4g9_19 := int64(f4) * int64(g9_19)
+	f5g0 := int64(f5) * int64(g0)
+	f5g1_2 := int64(f5_2) * int64(g1)
+	f5g2 := int64(f5) * int64(g2)
+	f5g3_2 := int64(f5_2) * int64(g3)
+	f5g4 := int64(f5) * int64(g4)
+	f5g5_38 := int64(f5_2) * int64(g5_19)
+	f5g6_19 := int64(f5) * int64(g6_19)
+	f5g7_38 := int64(f5_2) * int64(g7_19)
+	f5g8_19 := int64(f5) * int64(g8_19)
+	f5g9_38 := int64(f5_2) * int64(g9_19)
+	f6g0 := int64(f6) * int64(g0)
+	f6g1 := int64(f6) * int64(g1)
+	f6g2 := int64(f6) * int64(g2)
+	f6g3 := int64(f6) * int64(g3)
+	f6g4_19 := int64(f6) * int64(g4_19)
+	f6g5_19 := int64(f6) * int64(g5_19)
+	f6g6_19 := int64(f6) * int64(g6_19)
+	f6g7_19 := int64(f6) * int64(g7_19)
+	f6g8_19 := int64(f6) * int64(g8_19)
+	f6g9_19 := int64(f6) * int64(g9_19)
+	f7g0 := int64(f7) * int64(g0)
+	f7g1_2 := int64(f7_2) * int64(g1)
+	f7g2 := int64(f7) * int64(g2)
+	f7g3_38 := int64(f7_2) * int64(g3_19)
+	f7g4_19 := int64(f7) * int64(g4_19)
+	f7g5_38 := int64(f7_2) * int64(g5_19)
+	f7g6_19 := int64(f7) * int64(g6_19)
+	f7g7_38 := int64(f7_2) * int64(g7_19)
+	f7g8_19 := int64(f7) * int64(g8_19)
+	f7g9_38 := int64(f7_2) * int64(g9_19)
+	f8g0 := int64(f8) * int64(g0)
+	f8g1 := int64(f8) * int64(g1)
+	f8g2_19 := int64(f8) * int64(g2_19)
+	f8g3_19 := int64(f8) * int64(g3_19)
+	f8g4_19 := int64(f8) * int64(g4_19)
+	f8g5_19 := int64(f8) * int64(g5_19)
+	f8g6_19 := int64(f8) * int64(g6_19)
+	f8g7_19 := int64(f8) * int64(g7_19)
+	f8g8_19 := int64(f8) * int64(g8_19)
+	f8g9_19 := int64(f8) * int64(g9_19)
+	f9g0 := int64(f9) * int64(g0)
+	f9g1_38 := int64(f9_2) * int64(g1_19)
+	f9g2_19 := int64(f9) * int64(g2_19)
+	f9g3_38 := int64(f9_2) * int64(g3_19)
+	f9g4_19 := int64(f9) * int64(g4_19)
+	f9g5_38 := int64(f9_2) * int64(g5_19)
+	f9g6_19 := int64(f9) * int64(g6_19)
+	f9g7_38 := int64(f9_2) * int64(g7_19)
+	f9g8_19 := int64(f9) * int64(g8_19)
+	f9g9_38 := int64(f9_2) * int64(g9_19)
+	h0 := f0g0 + f1g9_38 + f2g8_19 + f3g7_38 + f4g6_19 + f5g5_38 + f6g4_19 + f7g3_38 + f8g2_19 + f9g1_38
+	h1 := f0g1 + f1g0 + f2g9_19 + f3g8_19 + f4g7_19 + f5g6_19 + f6g5_19 + f7g4_19 + f8g3_19 + f9g2_19
+	h2 := f0g2 + f1g1_2 + f2g0 + f3g9_38 + f4g8_19 + f5g7_38 + f6g6_19 + f7g5_38 + f8g4_19 + f9g3_38
+	h3 := f0g3 + f1g2 + f2g1 + f3g0 + f4g9_19 + f5g8_19 + f6g7_19 + f7g6_19 + f8g5_19 + f9g4_19
+	h4 := f0g4 + f1g3_2 + f2g2 + f3g1_2 + f4g0 + f5g9_38 + f6g8_19 + f7g7_38 + f8g6_19 + f9g5_38
+	h5 := f0g5 + f1g4 + f2g3 + f3g2 + f4g1 + f5g0 + f6g9_19 + f7g8_19 + f8g7_19 + f9g6_19
+	h6 := f0g6 + f1g5_2 + f2g4 + f3g3_2 + f4g2 + f5g1_2 + f6g0 + f7g9_38 + f8g8_19 + f9g7_38
+	h7 := f0g7 + f1g6 + f2g5 + f3g4 + f4g3 + f5g2 + f6g1 + f7g0 + f8g9_19 + f9g8_19
+	h8 := f0g8 + f1g7_2 + f2g6 + f3g5_2 + f4g4 + f5g3_2 + f6g2 + f7g1_2 + f8g0 + f9g9_38
+	h9 := f0g9 + f1g8 + f2g7 + f3g6 + f4g5 + f5g4 + f6g3 + f7g2 + f8g1 + f9g0
+	var carry [10]int64
+
+	// |h0| <= (1.1*1.1*2^52*(1+19+19+19+19)+1.1*1.1*2^50*(38+38+38+38+38))
+	//   i.e. |h0| <= 1.2*2^59; narrower ranges for h2, h4, h6, h8
+	// |h1| <= (1.1*1.1*2^51*(1+1+19+19+19+19+19+19+19+19))
+	//   i.e. |h1| <= 1.5*2^58; narrower ranges for h3, h5, h7, h9
+
+	carry[0] = (h0 + (1 << 25)) >> 26
+	h1 += carry[0]
+	h0 -= carry[0] << 26
+	carry[4] = (h4 + (1 << 25)) >> 26
+	h5 += carry[4]
+	h4 -= carry[4] << 26
+	// |h0| <= 2^25
+	// |h4| <= 2^25
+	// |h1| <= 1.51*2^58
+	// |h5| <= 1.51*2^58
+
+	carry[1] = (h1 + (1 << 24)) >> 25
+	h2 += carry[1]
+	h1 -= carry[1] << 25
+	carry[5] = (h5 + (1 << 24)) >> 25
+	h6 += carry[5]
+	h5 -= carry[5] << 25
+	// |h1| <= 2^24; from now on fits into int32
+	// |h5| <= 2^24; from now on fits into int32
+	// |h2| <= 1.21*2^59
+	// |h6| <= 1.21*2^59
+
+	carry[2] = (h2 + (1 << 25)) >> 26
+	h3 += carry[2]
+	h2 -= carry[2] << 26
+	carry[6] = (h6 + (1 << 25)) >> 26
+	h7 += carry[6]
+	h6 -= carry[6] << 26
+	// |h2| <= 2^25; from now on fits into int32 unchanged
+	// |h6| <= 2^25; from now on fits into int32 unchanged
+	// |h3| <= 1.51*2^58
+	// |h7| <= 1.51*2^58
+
+	carry[3] = (h3 + (1 << 24)) >> 25
+	h4 += carry[3]
+	h3 -= carry[3] << 25
+	carry[7] = (h7 + (1 << 24)) >> 25
+	h8 += carry[7]
+	h7 -= carry[7] << 25
+	// |h3| <= 2^24; from now on fits into int32 unchanged
+	// |h7| <= 2^24; from now on fits into int32 unchanged
+	// |h4| <= 1.52*2^33
+	// |h8| <= 1.52*2^33
+
+	carry[4] = (h4 + (1 << 25)) >> 26
+	h5 += carry[4]
+	h4 -= carry[4] << 26
+	carry[8] = (h8 + (1 << 25)) >> 26
+	h9 += carry[8]
+	h8 -= carry[8] << 26
+	// |h4| <= 2^25; from now on fits into int32 unchanged
+	// |h8| <= 2^25; from now on fits into int32 unchanged
+	// |h5| <= 1.01*2^24
+	// |h9| <= 1.51*2^58
+
+	carry[9] = (h9 + (1 << 24)) >> 25
+	h0 += carry[9] * 19
+	h9 -= carry[9] << 25
+	// |h9| <= 2^24; from now on fits into int32 unchanged
+	// |h0| <= 1.8*2^37
+
+	carry[0] = (h0 + (1 << 25)) >> 26
+	h1 += carry[0]
+	h0 -= carry[0] << 26
+	// |h0| <= 2^25; from now on fits into int32 unchanged
+	// |h1| <= 1.01*2^24
+
+	h[0] = int32(h0)
+	h[1] = int32(h1)
+	h[2] = int32(h2)
+	h[3] = int32(h3)
+	h[4] = int32(h4)
+	h[5] = int32(h5)
+	h[6] = int32(h6)
+	h[7] = int32(h7)
+	h[8] = int32(h8)
+	h[9] = int32(h9)
+}
+
+// feSquare calculates h = f*f. Can overlap h with f.
+//
+// Preconditions:
+//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+//
+// Postconditions:
+//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+func feSquare(h, f *fieldElement) {
+	f0 := f[0]
+	f1 := f[1]
+	f2 := f[2]
+	f3 := f[3]
+	f4 := f[4]
+	f5 := f[5]
+	f6 := f[6]
+	f7 := f[7]
+	f8 := f[8]
+	f9 := f[9]
+	f0_2 := 2 * f0
+	f1_2 := 2 * f1
+	f2_2 := 2 * f2
+	f3_2 := 2 * f3
+	f4_2 := 2 * f4
+	f5_2 := 2 * f5
+	f6_2 := 2 * f6
+	f7_2 := 2 * f7
+	f5_38 := 38 * f5 // 1.31*2^30
+	f6_19 := 19 * f6 // 1.31*2^30
+	f7_38 := 38 * f7 // 1.31*2^30
+	f8_19 := 19 * f8 // 1.31*2^30
+	f9_38 := 38 * f9 // 1.31*2^30
+	f0f0 := int64(f0) * int64(f0)
+	f0f1_2 := int64(f0_2) * int64(f1)
+	f0f2_2 := int64(f0_2) * int64(f2)
+	f0f3_2 := int64(f0_2) * int64(f3)
+	f0f4_2 := int64(f0_2) * int64(f4)
+	f0f5_2 := int64(f0_2) * int64(f5)
+	f0f6_2 := int64(f0_2) * int64(f6)
+	f0f7_2 := int64(f0_2) * int64(f7)
+	f0f8_2 := int64(f0_2) * int64(f8)
+	f0f9_2 := int64(f0_2) * int64(f9)
+	f1f1_2 := int64(f1_2) * int64(f1)
+	f1f2_2 := int64(f1_2) * int64(f2)
+	f1f3_4 := int64(f1_2) * int64(f3_2)
+	f1f4_2 := int64(f1_2) * int64(f4)
+	f1f5_4 := int64(f1_2) * int64(f5_2)
+	f1f6_2 := int64(f1_2) * int64(f6)
+	f1f7_4 := int64(f1_2) * int64(f7_2)
+	f1f8_2 := int64(f1_2) * int64(f8)
+	f1f9_76 := int64(f1_2) * int64(f9_38)
+	f2f2 := int64(f2) * int64(f2)
+	f2f3_2 := int64(f2_2) * int64(f3)
+	f2f4_2 := int64(f2_2) * int64(f4)
+	f2f5_2 := int64(f2_2) * int64(f5)
+	f2f6_2 := int64(f2_2) * int64(f6)
+	f2f7_2 := int64(f2_2) * int64(f7)
+	f2f8_38 := int64(f2_2) * int64(f8_19)
+	f2f9_38 := int64(f2) * int64(f9_38)
+	f3f3_2 := int64(f3_2) * int64(f3)
+	f3f4_2 := int64(f3_2) * int64(f4)
+	f3f5_4 := int64(f3_2) * int64(f5_2)
+	f3f6_2 := int64(f3_2) * int64(f6)
+	f3f7_76 := int64(f3_2) * int64(f7_38)
+	f3f8_38 := int64(f3_2) * int64(f8_19)
+	f3f9_76 := int64(f3_2) * int64(f9_38)
+	f4f4 := int64(f4) * int64(f4)
+	f4f5_2 := int64(f4_2) * int64(f5)
+	f4f6_38 := int64(f4_2) * int64(f6_19)
+	f4f7_38 := int64(f4) * int64(f7_38)
+	f4f8_38 := int64(f4_2) * int64(f8_19)
+	f4f9_38 := int64(f4) * int64(f9_38)
+	f5f5_38 := int64(f5) * int64(f5_38)
+	f5f6_38 := int64(f5_2) * int64(f6_19)
+	f5f7_76 := int64(f5_2) * int64(f7_38)
+	f5f8_38 := int64(f5_2) * int64(f8_19)
+	f5f9_76 := int64(f5_2) * int64(f9_38)
+	f6f6_19 := int64(f6) * int64(f6_19)
+	f6f7_38 := int64(f6) * int64(f7_38)
+	f6f8_38 := int64(f6_2) * int64(f8_19)
+	f6f9_38 := int64(f6) * int64(f9_38)
+	f7f7_38 := int64(f7) * int64(f7_38)
+	f7f8_38 := int64(f7_2) * int64(f8_19)
+	f7f9_76 := int64(f7_2) * int64(f9_38)
+	f8f8_19 := int64(f8) * int64(f8_19)
+	f8f9_38 := int64(f8) * int64(f9_38)
+	f9f9_38 := int64(f9) * int64(f9_38)
+	h0 := f0f0 + f1f9_76 + f2f8_38 + f3f7_76 + f4f6_38 + f5f5_38
+	h1 := f0f1_2 + f2f9_38 + f3f8_38 + f4f7_38 + f5f6_38
+	h2 := f0f2_2 + f1f1_2 + f3f9_76 + f4f8_38 + f5f7_76 + f6f6_19
+	h3 := f0f3_2 + f1f2_2 + f4f9_38 + f5f8_38 + f6f7_38
+	h4 := f0f4_2 + f1f3_4 + f2f2 + f5f9_76 + f6f8_38 + f7f7_38
+	h5 := f0f5_2 + f1f4_2 + f2f3_2 + f6f9_38 + f7f8_38
+	h6 := f0f6_2 + f1f5_4 + f2f4_2 + f3f3_2 + f7f9_76 + f8f8_19
+	h7 := f0f7_2 + f1f6_2 + f2f5_2 + f3f4_2 + f8f9_38
+	h8 := f0f8_2 + f1f7_4 + f2f6_2 + f3f5_4 + f4f4 + f9f9_38
+	h9 := f0f9_2 + f1f8_2 + f2f7_2 + f3f6_2 + f4f5_2
+	var carry [10]int64
+
+	carry[0] = (h0 + (1 << 25)) >> 26
+	h1 += carry[0]
+	h0 -= carry[0] << 26
+	carry[4] = (h4 + (1 << 25)) >> 26
+	h5 += carry[4]
+	h4 -= carry[4] << 26
+
+	carry[1] = (h1 + (1 << 24)) >> 25
+	h2 += carry[1]
+	h1 -= carry[1] << 25
+	carry[5] = (h5 + (1 << 24)) >> 25
+	h6 += carry[5]
+	h5 -= carry[5] << 25
+
+	carry[2] = (h2 + (1 << 25)) >> 26
+	h3 += carry[2]
+	h2 -= carry[2] << 26
+	carry[6] = (h6 + (1 << 25)) >> 26
+	h7 += carry[6]
+	h6 -= carry[6] << 26
+
+	carry[3] = (h3 + (1 << 24)) >> 25
+	h4 += carry[3]
+	h3 -= carry[3] << 25
+	carry[7] = (h7 + (1 << 24)) >> 25
+	h8 += carry[7]
+	h7 -= carry[7] << 25
+
+	carry[4] = (h4 + (1 << 25)) >> 26
+	h5 += carry[4]
+	h4 -= carry[4] << 26
+	carry[8] = (h8 + (1 << 25)) >> 26
+	h9 += carry[8]
+	h8 -= carry[8] << 26
+
+	carry[9] = (h9 + (1 << 24)) >> 25
+	h0 += carry[9] * 19
+	h9 -= carry[9] << 25
+
+	carry[0] = (h0 + (1 << 25)) >> 26
+	h1 += carry[0]
+	h0 -= carry[0] << 26
+
+	h[0] = int32(h0)
+	h[1] = int32(h1)
+	h[2] = int32(h2)
+	h[3] = int32(h3)
+	h[4] = int32(h4)
+	h[5] = int32(h5)
+	h[6] = int32(h6)
+	h[7] = int32(h7)
+	h[8] = int32(h8)
+	h[9] = int32(h9)
+}
+
+// feMul121666 calculates h = f * 121666. Can overlap h with f.
+//
+// Preconditions:
+//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+//
+// Postconditions:
+//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+func feMul121666(h, f *fieldElement) {
+	h0 := int64(f[0]) * 121666
+	h1 := int64(f[1]) * 121666
+	h2 := int64(f[2]) * 121666
+	h3 := int64(f[3]) * 121666
+	h4 := int64(f[4]) * 121666
+	h5 := int64(f[5]) * 121666
+	h6 := int64(f[6]) * 121666
+	h7 := int64(f[7]) * 121666
+	h8 := int64(f[8]) * 121666
+	h9 := int64(f[9]) * 121666
+	var carry [10]int64
+
+	carry[9] = (h9 + (1 << 24)) >> 25
+	h0 += carry[9] * 19
+	h9 -= carry[9] << 25
+	carry[1] = (h1 + (1 << 24)) >> 25
+	h2 += carry[1]
+	h1 -= carry[1] << 25
+	carry[3] = (h3 + (1 << 24)) >> 25
+	h4 += carry[3]
+	h3 -= carry[3] << 25
+	carry[5] = (h5 + (1 << 24)) >> 25
+	h6 += carry[5]
+	h5 -= carry[5] << 25
+	carry[7] = (h7 + (1 << 24)) >> 25
+	h8 += carry[7]
+	h7 -= carry[7] << 25
+
+	carry[0] = (h0 + (1 << 25)) >> 26
+	h1 += carry[0]
+	h0 -= carry[0] << 26
+	carry[2] = (h2 + (1 << 25)) >> 26
+	h3 += carry[2]
+	h2 -= carry[2] << 26
+	carry[4] = (h4 + (1 << 25)) >> 26
+	h5 += carry[4]
+	h4 -= carry[4] << 26
+	carry[6] = (h6 + (1 << 25)) >> 26
+	h7 += carry[6]
+	h6 -= carry[6] << 26
+	carry[8] = (h8 + (1 << 25)) >> 26
+	h9 += carry[8]
+	h8 -= carry[8] << 26
+
+	h[0] = int32(h0)
+	h[1] = int32(h1)
+	h[2] = int32(h2)
+	h[3] = int32(h3)
+	h[4] = int32(h4)
+	h[5] = int32(h5)
+	h[6] = int32(h6)
+	h[7] = int32(h7)
+	h[8] = int32(h8)
+	h[9] = int32(h9)
+}
+
+// feInvert sets out = z^-1.
+func feInvert(out, z *fieldElement) {
+	var t0, t1, t2, t3 fieldElement
+	var i int
+
+	feSquare(&t0, z)
+	for i = 1; i < 1; i++ {
+		feSquare(&t0, &t0)
+	}
+	feSquare(&t1, &t0)
+	for i = 1; i < 2; i++ {
+		feSquare(&t1, &t1)
+	}
+	feMul(&t1, z, &t1)
+	feMul(&t0, &t0, &t1)
+	feSquare(&t2, &t0)
+	for i = 1; i < 1; i++ {
+		feSquare(&t2, &t2)
+	}
+	feMul(&t1, &t1, &t2)
+	feSquare(&t2, &t1)
+	for i = 1; i < 5; i++ {
+		feSquare(&t2, &t2)
+	}
+	feMul(&t1, &t2, &t1)
+	feSquare(&t2, &t1)
+	for i = 1; i < 10; i++ {
+		feSquare(&t2, &t2)
+	}
+	feMul(&t2, &t2, &t1)
+	feSquare(&t3, &t2)
+	for i = 1; i < 20; i++ {
+		feSquare(&t3, &t3)
+	}
+	feMul(&t2, &t3, &t2)
+	feSquare(&t2, &t2)
+	for i = 1; i < 10; i++ {
+		feSquare(&t2, &t2)
+	}
+	feMul(&t1, &t2, &t1)
+	feSquare(&t2, &t1)
+	for i = 1; i < 50; i++ {
+		feSquare(&t2, &t2)
+	}
+	feMul(&t2, &t2, &t1)
+	feSquare(&t3, &t2)
+	for i = 1; i < 100; i++ {
+		feSquare(&t3, &t3)
+	}
+	feMul(&t2, &t3, &t2)
+	feSquare(&t2, &t2)
+	for i = 1; i < 50; i++ {
+		feSquare(&t2, &t2)
+	}
+	feMul(&t1, &t2, &t1)
+	feSquare(&t1, &t1)
+	for i = 1; i < 5; i++ {
+		feSquare(&t1, &t1)
+	}
+	feMul(out, &t1, &t0)
+}
+
+func scalarMultGeneric(out, in, base *[32]byte) {
+	var e [32]byte
+
+	copy(e[:], in[:])
+	e[0] &= 248
+	e[31] &= 127
+	e[31] |= 64
+
+	var x1, x2, z2, x3, z3, tmp0, tmp1 fieldElement
+	feFromBytes(&x1, base)
+	feOne(&x2)
+	feCopy(&x3, &x1)
+	feOne(&z3)
+
+	swap := int32(0)
+	for pos := 254; pos >= 0; pos-- {
+		b := e[pos/8] >> uint(pos&7)
+		b &= 1
+		swap ^= int32(b)
+		feCSwap(&x2, &x3, swap)
+		feCSwap(&z2, &z3, swap)
+		swap = int32(b)
+
+		feSub(&tmp0, &x3, &z3)
+		feSub(&tmp1, &x2, &z2)
+		feAdd(&x2, &x2, &z2)
+		feAdd(&z2, &x3, &z3)
+		feMul(&z3, &tmp0, &x2)
+		feMul(&z2, &z2, &tmp1)
+		feSquare(&tmp0, &tmp1)
+		feSquare(&tmp1, &x2)
+		feAdd(&x3, &z3, &z2)
+		feSub(&z2, &z3, &z2)
+		feMul(&x2, &tmp1, &tmp0)
+		feSub(&tmp1, &tmp1, &tmp0)
+		feSquare(&z2, &z2)
+		feMul121666(&z3, &tmp1)
+		feSquare(&x3, &x3)
+		feAdd(&tmp0, &tmp0, &z3)
+		feMul(&z3, &x1, &z2)
+		feMul(&z2, &tmp1, &tmp0)
+	}
+
+	feCSwap(&x2, &x3, swap)
+	feCSwap(&z2, &z3, swap)
+
+	feInvert(&z2, &z2)
+	feMul(&x2, &x2, &z2)
+	feToBytes(out, &x2)
+}
diff --git a/libgo/go/golang.org/x/crypto/curve25519/curve25519_noasm.go b/libgo/go/golang.org/x/crypto/curve25519/curve25519_noasm.go
new file mode 100644
index 0000000..047d49a
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/curve25519/curve25519_noasm.go
@@ -0,0 +1,11 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !amd64 gccgo appengine purego
+
+package curve25519
+
+func scalarMult(out, in, base *[32]byte) {
+	scalarMultGeneric(out, in, base)
+}
diff --git a/libgo/go/golang.org/x/crypto/curve25519/doc.go b/libgo/go/golang.org/x/crypto/curve25519/doc.go
deleted file mode 100644
index da9b10d..0000000
--- a/libgo/go/golang.org/x/crypto/curve25519/doc.go
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package curve25519 provides an implementation of scalar multiplication on
-// the elliptic curve known as curve25519. See https://cr.yp.to/ecdh.html
-package curve25519 // import "golang.org/x/crypto/curve25519"
-
-// basePoint is the x coordinate of the generator of the curve.
-var basePoint = [32]byte{9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
-
-// ScalarMult sets dst to the product in*base where dst and base are the x
-// coordinates of group points and all values are in little-endian form.
-func ScalarMult(dst, in, base *[32]byte) {
-	scalarMult(dst, in, base)
-}
-
-// ScalarBaseMult sets dst to the product in*base where dst and base are the x
-// coordinates of group points, base is the standard generator and all values
-// are in little-endian form.
-func ScalarBaseMult(dst, in *[32]byte) {
-	ScalarMult(dst, in, &basePoint)
-}
diff --git a/libgo/go/golang.org/x/crypto/ed25519/ed25519.go b/libgo/go/golang.org/x/crypto/ed25519/ed25519.go
new file mode 100644
index 0000000..c7f8c7e
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/ed25519/ed25519.go
@@ -0,0 +1,222 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// In Go 1.13, the ed25519 package was promoted to the standard library as
+// crypto/ed25519, and this package became a wrapper for the standard library one.
+//
+// +build !go1.13
+
+// Package ed25519 implements the Ed25519 signature algorithm. See
+// https://ed25519.cr.yp.to/.
+//
+// These functions are also compatible with the “Ed25519” function defined in
+// RFC 8032. However, unlike RFC 8032's formulation, this package's private key
+// representation includes a public key suffix to make multiple signing
+// operations with the same key more efficient. This package refers to the RFC
+// 8032 private key as the “seed”.
+package ed25519
+
+// This code is a port of the public domain, “ref10” implementation of ed25519
+// from SUPERCOP.
+
+import (
+	"bytes"
+	"crypto"
+	cryptorand "crypto/rand"
+	"crypto/sha512"
+	"errors"
+	"io"
+	"strconv"
+
+	"golang.org/x/crypto/ed25519/internal/edwards25519"
+)
+
+const (
+	// PublicKeySize is the size, in bytes, of public keys as used in this package.
+	PublicKeySize = 32
+	// PrivateKeySize is the size, in bytes, of private keys as used in this package.
+	PrivateKeySize = 64
+	// SignatureSize is the size, in bytes, of signatures generated and verified by this package.
+	SignatureSize = 64
+	// SeedSize is the size, in bytes, of private key seeds. These are the private key representations used by RFC 8032.
+	SeedSize = 32
+)
+
+// PublicKey is the type of Ed25519 public keys.
+type PublicKey []byte
+
+// PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer.
+type PrivateKey []byte
+
+// Public returns the PublicKey corresponding to priv.
+func (priv PrivateKey) Public() crypto.PublicKey {
+	publicKey := make([]byte, PublicKeySize)
+	copy(publicKey, priv[32:])
+	return PublicKey(publicKey)
+}
+
+// Seed returns the private key seed corresponding to priv. It is provided for
+// interoperability with RFC 8032. RFC 8032's private keys correspond to seeds
+// in this package.
+func (priv PrivateKey) Seed() []byte {
+	seed := make([]byte, SeedSize)
+	copy(seed, priv[:32])
+	return seed
+}
+
+// Sign signs the given message with priv.
+// Ed25519 performs two passes over messages to be signed and therefore cannot
+// handle pre-hashed messages. Thus opts.HashFunc() must return zero to
+// indicate the message hasn't been hashed. This can be achieved by passing
+// crypto.Hash(0) as the value for opts.
+func (priv PrivateKey) Sign(rand io.Reader, message []byte, opts crypto.SignerOpts) (signature []byte, err error) {
+	if opts.HashFunc() != crypto.Hash(0) {
+		return nil, errors.New("ed25519: cannot sign hashed message")
+	}
+
+	return Sign(priv, message), nil
+}
+
+// GenerateKey generates a public/private key pair using entropy from rand.
+// If rand is nil, crypto/rand.Reader will be used.
+func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) {
+	if rand == nil {
+		rand = cryptorand.Reader
+	}
+
+	seed := make([]byte, SeedSize)
+	if _, err := io.ReadFull(rand, seed); err != nil {
+		return nil, nil, err
+	}
+
+	privateKey := NewKeyFromSeed(seed)
+	publicKey := make([]byte, PublicKeySize)
+	copy(publicKey, privateKey[32:])
+
+	return publicKey, privateKey, nil
+}
+
+// NewKeyFromSeed calculates a private key from a seed. It will panic if
+// len(seed) is not SeedSize. This function is provided for interoperability
+// with RFC 8032. RFC 8032's private keys correspond to seeds in this
+// package.
+func NewKeyFromSeed(seed []byte) PrivateKey {
+	if l := len(seed); l != SeedSize {
+		panic("ed25519: bad seed length: " + strconv.Itoa(l))
+	}
+
+	digest := sha512.Sum512(seed)
+	digest[0] &= 248
+	digest[31] &= 127
+	digest[31] |= 64
+
+	var A edwards25519.ExtendedGroupElement
+	var hBytes [32]byte
+	copy(hBytes[:], digest[:])
+	edwards25519.GeScalarMultBase(&A, &hBytes)
+	var publicKeyBytes [32]byte
+	A.ToBytes(&publicKeyBytes)
+
+	privateKey := make([]byte, PrivateKeySize)
+	copy(privateKey, seed)
+	copy(privateKey[32:], publicKeyBytes[:])
+
+	return privateKey
+}
+
+// Sign signs the message with privateKey and returns a signature. It will
+// panic if len(privateKey) is not PrivateKeySize.
+func Sign(privateKey PrivateKey, message []byte) []byte {
+	if l := len(privateKey); l != PrivateKeySize {
+		panic("ed25519: bad private key length: " + strconv.Itoa(l))
+	}
+
+	h := sha512.New()
+	h.Write(privateKey[:32])
+
+	var digest1, messageDigest, hramDigest [64]byte
+	var expandedSecretKey [32]byte
+	h.Sum(digest1[:0])
+	copy(expandedSecretKey[:], digest1[:])
+	expandedSecretKey[0] &= 248
+	expandedSecretKey[31] &= 63
+	expandedSecretKey[31] |= 64
+
+	h.Reset()
+	h.Write(digest1[32:])
+	h.Write(message)
+	h.Sum(messageDigest[:0])
+
+	var messageDigestReduced [32]byte
+	edwards25519.ScReduce(&messageDigestReduced, &messageDigest)
+	var R edwards25519.ExtendedGroupElement
+	edwards25519.GeScalarMultBase(&R, &messageDigestReduced)
+
+	var encodedR [32]byte
+	R.ToBytes(&encodedR)
+
+	h.Reset()
+	h.Write(encodedR[:])
+	h.Write(privateKey[32:])
+	h.Write(message)
+	h.Sum(hramDigest[:0])
+	var hramDigestReduced [32]byte
+	edwards25519.ScReduce(&hramDigestReduced, &hramDigest)
+
+	var s [32]byte
+	edwards25519.ScMulAdd(&s, &hramDigestReduced, &expandedSecretKey, &messageDigestReduced)
+
+	signature := make([]byte, SignatureSize)
+	copy(signature[:], encodedR[:])
+	copy(signature[32:], s[:])
+
+	return signature
+}
+
+// Verify reports whether sig is a valid signature of message by publicKey. It
+// will panic if len(publicKey) is not PublicKeySize.
+func Verify(publicKey PublicKey, message, sig []byte) bool {
+	if l := len(publicKey); l != PublicKeySize {
+		panic("ed25519: bad public key length: " + strconv.Itoa(l))
+	}
+
+	if len(sig) != SignatureSize || sig[63]&224 != 0 {
+		return false
+	}
+
+	var A edwards25519.ExtendedGroupElement
+	var publicKeyBytes [32]byte
+	copy(publicKeyBytes[:], publicKey)
+	if !A.FromBytes(&publicKeyBytes) {
+		return false
+	}
+	edwards25519.FeNeg(&A.X, &A.X)
+	edwards25519.FeNeg(&A.T, &A.T)
+
+	h := sha512.New()
+	h.Write(sig[:32])
+	h.Write(publicKey[:])
+	h.Write(message)
+	var digest [64]byte
+	h.Sum(digest[:0])
+
+	var hReduced [32]byte
+	edwards25519.ScReduce(&hReduced, &digest)
+
+	var R edwards25519.ProjectiveGroupElement
+	var s [32]byte
+	copy(s[:], sig[32:])
+
+	// https://tools.ietf.org/html/rfc8032#section-5.1.7 requires that s be in
+	// the range [0, order) in order to prevent signature malleability.
+	if !edwards25519.ScMinimal(&s) {
+		return false
+	}
+
+	edwards25519.GeDoubleScalarMultVartime(&R, &hReduced, &A, &s)
+
+	var checkR [32]byte
+	R.ToBytes(&checkR)
+	return bytes.Equal(sig[:32], checkR[:])
+}
diff --git a/libgo/go/golang.org/x/crypto/ed25519/ed25519_go113.go b/libgo/go/golang.org/x/crypto/ed25519/ed25519_go113.go
new file mode 100644
index 0000000..d1448d8
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/ed25519/ed25519_go113.go
@@ -0,0 +1,73 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build go1.13
+
+// Package ed25519 implements the Ed25519 signature algorithm. See
+// https://ed25519.cr.yp.to/.
+//
+// These functions are also compatible with the “Ed25519” function defined in
+// RFC 8032. However, unlike RFC 8032's formulation, this package's private key
+// representation includes a public key suffix to make multiple signing
+// operations with the same key more efficient. This package refers to the RFC
+// 8032 private key as the “seed”.
+//
+// Beginning with Go 1.13, the functionality of this package was moved to the
+// standard library as crypto/ed25519. This package only acts as a compatibility
+// wrapper.
+package ed25519
+
+import (
+	"crypto/ed25519"
+	"io"
+)
+
+const (
+	// PublicKeySize is the size, in bytes, of public keys as used in this package.
+	PublicKeySize = 32
+	// PrivateKeySize is the size, in bytes, of private keys as used in this package.
+	PrivateKeySize = 64
+	// SignatureSize is the size, in bytes, of signatures generated and verified by this package.
+	SignatureSize = 64
+	// SeedSize is the size, in bytes, of private key seeds. These are the private key representations used by RFC 8032.
+	SeedSize = 32
+)
+
+// PublicKey is the type of Ed25519 public keys.
+//
+// This type is an alias for crypto/ed25519's PublicKey type.
+// See the crypto/ed25519 package for the methods on this type.
+type PublicKey = ed25519.PublicKey
+
+// PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer.
+//
+// This type is an alias for crypto/ed25519's PrivateKey type.
+// See the crypto/ed25519 package for the methods on this type.
+type PrivateKey = ed25519.PrivateKey
+
+// GenerateKey generates a public/private key pair using entropy from rand.
+// If rand is nil, crypto/rand.Reader will be used.
+func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) {
+	return ed25519.GenerateKey(rand)
+}
+
+// NewKeyFromSeed calculates a private key from a seed. It will panic if
+// len(seed) is not SeedSize. This function is provided for interoperability
+// with RFC 8032. RFC 8032's private keys correspond to seeds in this
+// package.
+func NewKeyFromSeed(seed []byte) PrivateKey {
+	return ed25519.NewKeyFromSeed(seed)
+}
+
+// Sign signs the message with privateKey and returns a signature. It will
+// panic if len(privateKey) is not PrivateKeySize.
+func Sign(privateKey PrivateKey, message []byte) []byte {
+	return ed25519.Sign(privateKey, message)
+}
+
+// Verify reports whether sig is a valid signature of message by publicKey. It
+// will panic if len(publicKey) is not PublicKeySize.
+func Verify(publicKey PublicKey, message, sig []byte) bool {
+	return ed25519.Verify(publicKey, message, sig)
+}
diff --git a/libgo/go/golang.org/x/crypto/ed25519/internal/edwards25519/const.go b/libgo/go/golang.org/x/crypto/ed25519/internal/edwards25519/const.go
new file mode 100644
index 0000000..e39f086
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/ed25519/internal/edwards25519/const.go
@@ -0,0 +1,1422 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package edwards25519
+
+// These values are from the public domain, “ref10” implementation of ed25519
+// from SUPERCOP.
+
+// d is a constant in the Edwards curve equation.
+var d = FieldElement{
+	-10913610, 13857413, -15372611, 6949391, 114729, -8787816, -6275908, -3247719, -18696448, -12055116,
+}
+
+// d2 is 2*d.
+var d2 = FieldElement{
+	-21827239, -5839606, -30745221, 13898782, 229458, 15978800, -12551817, -6495438, 29715968, 9444199,
+}
+
+// SqrtM1 is the square-root of -1 in the field.
+var SqrtM1 = FieldElement{
+	-32595792, -7943725, 9377950, 3500415, 12389472, -272473, -25146209, -2005654, 326686, 11406482,
+}
+
+// A is a constant in the Montgomery-form of curve25519.
+var A = FieldElement{
+	486662, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+}
+
+// bi contains precomputed multiples of the base-point. See the Ed25519 paper
+// for a discussion about how these values are used.
+var bi = [8]PreComputedGroupElement{
+	{
+		FieldElement{25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605},
+		FieldElement{-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378},
+		FieldElement{-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546},
+	},
+	{
+		FieldElement{15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024},
+		FieldElement{16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574},
+		FieldElement{30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357},
+	},
+	{
+		FieldElement{10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380},
+		FieldElement{4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306},
+		FieldElement{19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942},
+	},
+	{
+		FieldElement{5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766},
+		FieldElement{-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701},
+		FieldElement{28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300},
+	},
+	{
+		FieldElement{-22518993, -6692182, 14201702, -8745502, -23510406, 8844726, 18474211, -1361450, -13062696, 13821877},
+		FieldElement{-6455177, -7839871, 3374702, -4740862, -27098617, -10571707, 31655028, -7212327, 18853322, -14220951},
+		FieldElement{4566830, -12963868, -28974889, -12240689, -7602672, -2830569, -8514358, -10431137, 2207753, -3209784},
+	},
+	{
+		FieldElement{-25154831, -4185821, 29681144, 7868801, -6854661, -9423865, -12437364, -663000, -31111463, -16132436},
+		FieldElement{25576264, -2703214, 7349804, -11814844, 16472782, 9300885, 3844789, 15725684, 171356, 6466918},
+		FieldElement{23103977, 13316479, 9739013, -16149481, 817875, -15038942, 8965339, -14088058, -30714912, 16193877},
+	},
+	{
+		FieldElement{-33521811, 3180713, -2394130, 14003687, -16903474, -16270840, 17238398, 4729455, -18074513, 9256800},
+		FieldElement{-25182317, -4174131, 32336398, 5036987, -21236817, 11360617, 22616405, 9761698, -19827198, 630305},
+		FieldElement{-13720693, 2639453, -24237460, -7406481, 9494427, -5774029, -6554551, -15960994, -2449256, -14291300},
+	},
+	{
+		FieldElement{-3151181, -5046075, 9282714, 6866145, -31907062, -863023, -18940575, 15033784, 25105118, -7894876},
+		FieldElement{-24326370, 15950226, -31801215, -14592823, -11662737, -5090925, 1573892, -2625887, 2198790, -15804619},
+		FieldElement{-3099351, 10324967, -2241613, 7453183, -5446979, -2735503, -13812022, -16236442, -32461234, -12290683},
+	},
+}
+
+// base contains precomputed multiples of the base-point. See the Ed25519 paper
+// for a discussion about how these values are used.
+var base = [32][8]PreComputedGroupElement{
+	{
+		{
+			FieldElement{25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605},
+			FieldElement{-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378},
+			FieldElement{-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546},
+		},
+		{
+			FieldElement{-12815894, -12976347, -21581243, 11784320, -25355658, -2750717, -11717903, -3814571, -358445, -10211303},
+			FieldElement{-21703237, 6903825, 27185491, 6451973, -29577724, -9554005, -15616551, 11189268, -26829678, -5319081},
+			FieldElement{26966642, 11152617, 32442495, 15396054, 14353839, -12752335, -3128826, -9541118, -15472047, -4166697},
+		},
+		{
+			FieldElement{15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024},
+			FieldElement{16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574},
+			FieldElement{30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357},
+		},
+		{
+			FieldElement{-17036878, 13921892, 10945806, -6033431, 27105052, -16084379, -28926210, 15006023, 3284568, -6276540},
+			FieldElement{23599295, -8306047, -11193664, -7687416, 13236774, 10506355, 7464579, 9656445, 13059162, 10374397},
+			FieldElement{7798556, 16710257, 3033922, 2874086, 28997861, 2835604, 32406664, -3839045, -641708, -101325},
+		},
+		{
+			FieldElement{10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380},
+			FieldElement{4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306},
+			FieldElement{19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942},
+		},
+		{
+			FieldElement{-15371964, -12862754, 32573250, 4720197, -26436522, 5875511, -19188627, -15224819, -9818940, -12085777},
+			FieldElement{-8549212, 109983, 15149363, 2178705, 22900618, 4543417, 3044240, -15689887, 1762328, 14866737},
+			FieldElement{-18199695, -15951423, -10473290, 1707278, -17185920, 3916101, -28236412, 3959421, 27914454, 4383652},
+		},
+		{
+			FieldElement{5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766},
+			FieldElement{-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701},
+			FieldElement{28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300},
+		},
+		{
+			FieldElement{14499471, -2729599, -33191113, -4254652, 28494862, 14271267, 30290735, 10876454, -33154098, 2381726},
+			FieldElement{-7195431, -2655363, -14730155, 462251, -27724326, 3941372, -6236617, 3696005, -32300832, 15351955},
+			FieldElement{27431194, 8222322, 16448760, -3907995, -18707002, 11938355, -32961401, -2970515, 29551813, 10109425},
+		},
+	},
+	{
+		{
+			FieldElement{-13657040, -13155431, -31283750, 11777098, 21447386, 6519384, -2378284, -1627556, 10092783, -4764171},
+			FieldElement{27939166, 14210322, 4677035, 16277044, -22964462, -12398139, -32508754, 12005538, -17810127, 12803510},
+			FieldElement{17228999, -15661624, -1233527, 300140, -1224870, -11714777, 30364213, -9038194, 18016357, 4397660},
+		},
+		{
+			FieldElement{-10958843, -7690207, 4776341, -14954238, 27850028, -15602212, -26619106, 14544525, -17477504, 982639},
+			FieldElement{29253598, 15796703, -2863982, -9908884, 10057023, 3163536, 7332899, -4120128, -21047696, 9934963},
+			FieldElement{5793303, 16271923, -24131614, -10116404, 29188560, 1206517, -14747930, 4559895, -30123922, -10897950},
+		},
+		{
+			FieldElement{-27643952, -11493006, 16282657, -11036493, 28414021, -15012264, 24191034, 4541697, -13338309, 5500568},
+			FieldElement{12650548, -1497113, 9052871, 11355358, -17680037, -8400164, -17430592, 12264343, 10874051, 13524335},
+			FieldElement{25556948, -3045990, 714651, 2510400, 23394682, -10415330, 33119038, 5080568, -22528059, 5376628},
+		},
+		{
+			FieldElement{-26088264, -4011052, -17013699, -3537628, -6726793, 1920897, -22321305, -9447443, 4535768, 1569007},
+			FieldElement{-2255422, 14606630, -21692440, -8039818, 28430649, 8775819, -30494562, 3044290, 31848280, 12543772},
+			FieldElement{-22028579, 2943893, -31857513, 6777306, 13784462, -4292203, -27377195, -2062731, 7718482, 14474653},
+		},
+		{
+			FieldElement{2385315, 2454213, -22631320, 46603, -4437935, -15680415, 656965, -7236665, 24316168, -5253567},
+			FieldElement{13741529, 10911568, -33233417, -8603737, -20177830, -1033297, 33040651, -13424532, -20729456, 8321686},
+			FieldElement{21060490, -2212744, 15712757, -4336099, 1639040, 10656336, 23845965, -11874838, -9984458, 608372},
+		},
+		{
+			FieldElement{-13672732, -15087586, -10889693, -7557059, -6036909, 11305547, 1123968, -6780577, 27229399, 23887},
+			FieldElement{-23244140, -294205, -11744728, 14712571, -29465699, -2029617, 12797024, -6440308, -1633405, 16678954},
+			FieldElement{-29500620, 4770662, -16054387, 14001338, 7830047, 9564805, -1508144, -4795045, -17169265, 4904953},
+		},
+		{
+			FieldElement{24059557, 14617003, 19037157, -15039908, 19766093, -14906429, 5169211, 16191880, 2128236, -4326833},
+			FieldElement{-16981152, 4124966, -8540610, -10653797, 30336522, -14105247, -29806336, 916033, -6882542, -2986532},
+			FieldElement{-22630907, 12419372, -7134229, -7473371, -16478904, 16739175, 285431, 2763829, 15736322, 4143876},
+		},
+		{
+			FieldElement{2379352, 11839345, -4110402, -5988665, 11274298, 794957, 212801, -14594663, 23527084, -16458268},
+			FieldElement{33431127, -11130478, -17838966, -15626900, 8909499, 8376530, -32625340, 4087881, -15188911, -14416214},
+			FieldElement{1767683, 7197987, -13205226, -2022635, -13091350, 448826, 5799055, 4357868, -4774191, -16323038},
+		},
+	},
+	{
+		{
+			FieldElement{6721966, 13833823, -23523388, -1551314, 26354293, -11863321, 23365147, -3949732, 7390890, 2759800},
+			FieldElement{4409041, 2052381, 23373853, 10530217, 7676779, -12885954, 21302353, -4264057, 1244380, -12919645},
+			FieldElement{-4421239, 7169619, 4982368, -2957590, 30256825, -2777540, 14086413, 9208236, 15886429, 16489664},
+		},
+		{
+			FieldElement{1996075, 10375649, 14346367, 13311202, -6874135, -16438411, -13693198, 398369, -30606455, -712933},
+			FieldElement{-25307465, 9795880, -2777414, 14878809, -33531835, 14780363, 13348553, 12076947, -30836462, 5113182},
+			FieldElement{-17770784, 11797796, 31950843, 13929123, -25888302, 12288344, -30341101, -7336386, 13847711, 5387222},
+		},
+		{
+			FieldElement{-18582163, -3416217, 17824843, -2340966, 22744343, -10442611, 8763061, 3617786, -19600662, 10370991},
+			FieldElement{20246567, -14369378, 22358229, -543712, 18507283, -10413996, 14554437, -8746092, 32232924, 16763880},
+			FieldElement{9648505, 10094563, 26416693, 14745928, -30374318, -6472621, 11094161, 15689506, 3140038, -16510092},
+		},
+		{
+			FieldElement{-16160072, 5472695, 31895588, 4744994, 8823515, 10365685, -27224800, 9448613, -28774454, 366295},
+			FieldElement{19153450, 11523972, -11096490, -6503142, -24647631, 5420647, 28344573, 8041113, 719605, 11671788},
+			FieldElement{8678025, 2694440, -6808014, 2517372, 4964326, 11152271, -15432916, -15266516, 27000813, -10195553},
+		},
+		{
+			FieldElement{-15157904, 7134312, 8639287, -2814877, -7235688, 10421742, 564065, 5336097, 6750977, -14521026},
+			FieldElement{11836410, -3979488, 26297894, 16080799, 23455045, 15735944, 1695823, -8819122, 8169720, 16220347},
+			FieldElement{-18115838, 8653647, 17578566, -6092619, -8025777, -16012763, -11144307, -2627664, -5990708, -14166033},
+		},
+		{
+			FieldElement{-23308498, -10968312, 15213228, -10081214, -30853605, -11050004, 27884329, 2847284, 2655861, 1738395},
+			FieldElement{-27537433, -14253021, -25336301, -8002780, -9370762, 8129821, 21651608, -3239336, -19087449, -11005278},
+			FieldElement{1533110, 3437855, 23735889, 459276, 29970501, 11335377, 26030092, 5821408, 10478196, 8544890},
+		},
+		{
+			FieldElement{32173121, -16129311, 24896207, 3921497, 22579056, -3410854, 19270449, 12217473, 17789017, -3395995},
+			FieldElement{-30552961, -2228401, -15578829, -10147201, 13243889, 517024, 15479401, -3853233, 30460520, 1052596},
+			FieldElement{-11614875, 13323618, 32618793, 8175907, -15230173, 12596687, 27491595, -4612359, 3179268, -9478891},
+		},
+		{
+			FieldElement{31947069, -14366651, -4640583, -15339921, -15125977, -6039709, -14756777, -16411740, 19072640, -9511060},
+			FieldElement{11685058, 11822410, 3158003, -13952594, 33402194, -4165066, 5977896, -5215017, 473099, 5040608},
+			FieldElement{-20290863, 8198642, -27410132, 11602123, 1290375, -2799760, 28326862, 1721092, -19558642, -3131606},
+		},
+	},
+	{
+		{
+			FieldElement{7881532, 10687937, 7578723, 7738378, -18951012, -2553952, 21820786, 8076149, -27868496, 11538389},
+			FieldElement{-19935666, 3899861, 18283497, -6801568, -15728660, -11249211, 8754525, 7446702, -5676054, 5797016},
+			FieldElement{-11295600, -3793569, -15782110, -7964573, 12708869, -8456199, 2014099, -9050574, -2369172, -5877341},
+		},
+		{
+			FieldElement{-22472376, -11568741, -27682020, 1146375, 18956691, 16640559, 1192730, -3714199, 15123619, 10811505},
+			FieldElement{14352098, -3419715, -18942044, 10822655, 32750596, 4699007, -70363, 15776356, -28886779, -11974553},
+			FieldElement{-28241164, -8072475, -4978962, -5315317, 29416931, 1847569, -20654173, -16484855, 4714547, -9600655},
+		},
+		{
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+			FieldElement{12876937, -10480056, 33134381, 6590940, -6307776, 14872440, 9613953, 8241152, 15370987, 9608631},
+			FieldElement{-4143277, -12014408, 8446281, -391603, 4407738, 13629032, -7724868, 15866074, -28210621, -8814099},
+		},
+		{
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+			FieldElement{14620715, 13067227, -15447274, 8264467, 14106269, 15080814, 33531827, 12516406, -21574435, -12476749},
+			FieldElement{236881, 10476226, 57258, -14677024, 6472998, 2466984, 17258519, 7256740, 8791136, 15069930},
+		},
+		{
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+			FieldElement{20590503, -9018988, 31529744, -7352666, -2706834, 10650548, 31559055, -11609587, 18979186, 13396066},
+		},
+		{
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+			FieldElement{-11566906, -6565505, -21365085, 15928892, -26158305, 4315421, -25948728, -3916677, -21480480, 12868082},
+			FieldElement{-28635013, 13504661, 19988037, -2132761, 21078225, 6443208, -21446107, 2244500, -12455797, -8089383},
+		},
+		{
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+			FieldElement{-11630176, -11503902, -8119500, -7643073, 2620056, 1022908, -23710744, -1568984, -16128528, -14962807},
+			FieldElement{23152971, 775386, 27395463, 14006635, -9701118, 4649512, 1689819, 892185, -11513277, -15205948},
+		},
+		{
+			FieldElement{9770129, 9586738, 26496094, 4324120, 1556511, -3550024, 27453819, 4763127, -19179614, 5867134},
+			FieldElement{-32765025, 1927590, 31726409, -4753295, 23962434, -16019500, 27846559, 5931263, -29749703, -16108455},
+			FieldElement{27461885, -2977536, 22380810, 1815854, -23033753, -3031938, 7283490, -15148073, -19526700, 7734629},
+		},
+	},
+	{
+		{
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+			FieldElement{-32658337, -6171222, -7672793, -11051681, 6258878, 13504381, 10458790, -6418461, -8872242, 8424746},
+			FieldElement{24687205, 8613276, -30667046, -3233545, 1863892, -1830544, 19206234, 7134917, -11284482, -828919},
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+		{
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+			FieldElement{-28946384, 15479763, -17466835, 568876, -1497683, 11223454, -2669190, -16625574, -27235709, 8876771},
+		},
+		{
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+			FieldElement{10477963, -7470260, 12119566, -13250805, 29016247, -5365589, 31280319, 14396151, -30233575, 15272409},
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+		{
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+			FieldElement{-26180358, 9489187, 11053416, -14746161, -31053720, 5825630, -8384306, -8767532, 15341279, 8373727},
+			FieldElement{28685821, 7759505, -14378516, -12002860, -31971820, 4079242, 298136, -10232602, -2878207, 15190420},
+		},
+		{
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+			FieldElement{-1580388, -11729417, -25979658, -11445023, -17411874, -10912854, 9291594, -16247779, -12154742, 6048605},
+			FieldElement{-30305315, 14843444, 1539301, 11864366, 20201677, 1900163, 13934231, 5128323, 11213262, 9168384},
+		},
+		{
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+			FieldElement{-23136053, 9282192, 14855179, -15390078, -7362815, -14408560, -22783952, 14461608, 14042978, 5230683},
+			FieldElement{29969567, -2741594, -16711867, -8552442, 9175486, -2468974, 21556951, 3506042, -5933891, -12449708},
+		},
+		{
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+			FieldElement{-19464629, 10110288, -17262528, -3503892, -23500387, 1355669, -15523050, 15300988, -20514118, 9168260},
+			FieldElement{-5353335, 4488613, -23803248, 16314347, 7780487, -15638939, -28948358, 9601605, 33087103, -9011387},
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+		{
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+			FieldElement{23294591, -16632613, -22650781, -8470978, 27844204, 11461195, 13099750, -2460356, 18151676, 13417686},
+			FieldElement{-24722913, -4176517, -31150679, 5988919, -26858785, 6685065, 1661597, -12551441, 15271676, -15452665},
+		},
+	},
+	{
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+			FieldElement{19268650, -7304421, 1555349, 8692754, -21474059, -9910664, 6347390, -1411784, -19522291, -16109756},
+			FieldElement{-24864089, 12986008, -10898878, -5558584, -11312371, -148526, 19541418, 8180106, 9282262, 10282508},
+		},
+		{
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+			FieldElement{-10562541, 14895633, 26814552, -16673850, -17480754, -2489360, -2781891, 6993761, -18093885, 10114655},
+			FieldElement{-20107055, -929418, 31422704, 10427861, -7110749, 6150669, -29091755, -11529146, 25953725, -106158},
+		},
+		{
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+			FieldElement{-15998678, 7578152, 5310217, 14408357, -33548620, -224739, 31575954, 6326196, 7381791, -2421839},
+			FieldElement{-20902779, 3296811, 24736065, -16328389, 18374254, 7318640, 6295303, 8082724, -15362489, 12339664},
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+		{
+			FieldElement{22258397, -16332233, -7869817, 14613016, -22520255, -2950923, -20353881, 7315967, 16648397, 7605640},
+			FieldElement{-8081308, -8464597, -8223311, 9719710, 19259459, -15348212, 23994942, -5281555, -9468848, 4763278},
+			FieldElement{-21699244, 9220969, -15730624, 1084137, -25476107, -2852390, 31088447, -7764523, -11356529, 728112},
+		},
+		{
+			FieldElement{26047220, -11751471, -6900323, -16521798, 24092068, 9158119, -4273545, -12555558, -29365436, -5498272},
+			FieldElement{17510331, -322857, 5854289, 8403524, 17133918, -3112612, -28111007, 12327945, 10750447, 10014012},
+			FieldElement{-10312768, 3936952, 9156313, -8897683, 16498692, -994647, -27481051, -666732, 3424691, 7540221},
+		},
+		{
+			FieldElement{30322361, -6964110, 11361005, -4143317, 7433304, 4989748, -7071422, -16317219, -9244265, 15258046},
+			FieldElement{13054562, -2779497, 19155474, 469045, -12482797, 4566042, 5631406, 2711395, 1062915, -5136345},
+			FieldElement{-19240248, -11254599, -29509029, -7499965, -5835763, 13005411, -6066489, 12194497, 32960380, 1459310},
+		},
+	},
+	{
+		{
+			FieldElement{19852034, 7027924, 23669353, 10020366, 8586503, -6657907, 394197, -6101885, 18638003, -11174937},
+			FieldElement{31395534, 15098109, 26581030, 8030562, -16527914, -5007134, 9012486, -7584354, -6643087, -5442636},
+			FieldElement{-9192165, -2347377, -1997099, 4529534, 25766844, 607986, -13222, 9677543, -32294889, -6456008},
+		},
+		{
+			FieldElement{-2444496, -149937, 29348902, 8186665, 1873760, 12489863, -30934579, -7839692, -7852844, -8138429},
+			FieldElement{-15236356, -15433509, 7766470, 746860, 26346930, -10221762, -27333451, 10754588, -9431476, 5203576},
+			FieldElement{31834314, 14135496, -770007, 5159118, 20917671, -16768096, -7467973, -7337524, 31809243, 7347066},
+		},
+		{
+			FieldElement{-9606723, -11874240, 20414459, 13033986, 13716524, -11691881, 19797970, -12211255, 15192876, -2087490},
+			FieldElement{-12663563, -2181719, 1168162, -3804809, 26747877, -14138091, 10609330, 12694420, 33473243, -13382104},
+			FieldElement{33184999, 11180355, 15832085, -11385430, -1633671, 225884, 15089336, -11023903, -6135662, 14480053},
+		},
+		{
+			FieldElement{31308717, -5619998, 31030840, -1897099, 15674547, -6582883, 5496208, 13685227, 27595050, 8737275},
+			FieldElement{-20318852, -15150239, 10933843, -16178022, 8335352, -7546022, -31008351, -12610604, 26498114, 66511},
+			FieldElement{22644454, -8761729, -16671776, 4884562, -3105614, -13559366, 30540766, -4286747, -13327787, -7515095},
+		},
+		{
+			FieldElement{-28017847, 9834845, 18617207, -2681312, -3401956, -13307506, 8205540, 13585437, -17127465, 15115439},
+			FieldElement{23711543, -672915, 31206561, -8362711, 6164647, -9709987, -33535882, -1426096, 8236921, 16492939},
+			FieldElement{-23910559, -13515526, -26299483, -4503841, 25005590, -7687270, 19574902, 10071562, 6708380, -6222424},
+		},
+		{
+			FieldElement{2101391, -4930054, 19702731, 2367575, -15427167, 1047675, 5301017, 9328700, 29955601, -11678310},
+			FieldElement{3096359, 9271816, -21620864, -15521844, -14847996, -7592937, -25892142, -12635595, -9917575, 6216608},
+			FieldElement{-32615849, 338663, -25195611, 2510422, -29213566, -13820213, 24822830, -6146567, -26767480, 7525079},
+		},
+		{
+			FieldElement{-23066649, -13985623, 16133487, -7896178, -3389565, 778788, -910336, -2782495, -19386633, 11994101},
+			FieldElement{21691500, -13624626, -641331, -14367021, 3285881, -3483596, -25064666, 9718258, -7477437, 13381418},
+			FieldElement{18445390, -4202236, 14979846, 11622458, -1727110, -3582980, 23111648, -6375247, 28535282, 15779576},
+		},
+		{
+			FieldElement{30098053, 3089662, -9234387, 16662135, -21306940, 11308411, -14068454, 12021730, 9955285, -16303356},
+			FieldElement{9734894, -14576830, -7473633, -9138735, 2060392, 11313496, -18426029, 9924399, 20194861, 13380996},
+			FieldElement{-26378102, -7965207, -22167821, 15789297, -18055342, -6168792, -1984914, 15707771, 26342023, 10146099},
+		},
+	},
+	{
+		{
+			FieldElement{-26016874, -219943, 21339191, -41388, 19745256, -2878700, -29637280, 2227040, 21612326, -545728},
+			FieldElement{-13077387, 1184228, 23562814, -5970442, -20351244, -6348714, 25764461, 12243797, -20856566, 11649658},
+			FieldElement{-10031494, 11262626, 27384172, 2271902, 26947504, -15997771, 39944, 6114064, 33514190, 2333242},
+		},
+		{
+			FieldElement{-21433588, -12421821, 8119782, 7219913, -21830522, -9016134, -6679750, -12670638, 24350578, -13450001},
+			FieldElement{-4116307, -11271533, -23886186, 4843615, -30088339, 690623, -31536088, -10406836, 8317860, 12352766},
+			FieldElement{18200138, -14475911, -33087759, -2696619, -23702521, -9102511, -23552096, -2287550, 20712163, 6719373},
+		},
+		{
+			FieldElement{26656208, 6075253, -7858556, 1886072, -28344043, 4262326, 11117530, -3763210, 26224235, -3297458},
+			FieldElement{-17168938, -14854097, -3395676, -16369877, -19954045, 14050420, 21728352, 9493610, 18620611, -16428628},
+			FieldElement{-13323321, 13325349, 11432106, 5964811, 18609221, 6062965, -5269471, -9725556, -30701573, -16479657},
+		},
+		{
+			FieldElement{-23860538, -11233159, 26961357, 1640861, -32413112, -16737940, 12248509, -5240639, 13735342, 1934062},
+			FieldElement{25089769, 6742589, 17081145, -13406266, 21909293, -16067981, -15136294, -3765346, -21277997, 5473616},
+			FieldElement{31883677, -7961101, 1083432, -11572403, 22828471, 13290673, -7125085, 12469656, 29111212, -5451014},
+		},
+		{
+			FieldElement{24244947, -15050407, -26262976, 2791540, -14997599, 16666678, 24367466, 6388839, -10295587, 452383},
+			FieldElement{-25640782, -3417841, 5217916, 16224624, 19987036, -4082269, -24236251, -5915248, 15766062, 8407814},
+			FieldElement{-20406999, 13990231, 15495425, 16395525, 5377168, 15166495, -8917023, -4388953, -8067909, 2276718},
+		},
+		{
+			FieldElement{30157918, 12924066, -17712050, 9245753, 19895028, 3368142, -23827587, 5096219, 22740376, -7303417},
+			FieldElement{2041139, -14256350, 7783687, 13876377, -25946985, -13352459, 24051124, 13742383, -15637599, 13295222},
+			FieldElement{33338237, -8505733, 12532113, 7977527, 9106186, -1715251, -17720195, -4612972, -4451357, -14669444},
+		},
+		{
+			FieldElement{-20045281, 5454097, -14346548, 6447146, 28862071, 1883651, -2469266, -4141880, 7770569, 9620597},
+			FieldElement{23208068, 7979712, 33071466, 8149229, 1758231, -10834995, 30945528, -1694323, -33502340, -14767970},
+			FieldElement{1439958, -16270480, -1079989, -793782, 4625402, 10647766, -5043801, 1220118, 30494170, -11440799},
+		},
+		{
+			FieldElement{-5037580, -13028295, -2970559, -3061767, 15640974, -6701666, -26739026, 926050, -1684339, -13333647},
+			FieldElement{13908495, -3549272, 30919928, -6273825, -21521863, 7989039, 9021034, 9078865, 3353509, 4033511},
+			FieldElement{-29663431, -15113610, 32259991, -344482, 24295849, -12912123, 23161163, 8839127, 27485041, 7356032},
+		},
+	},
+	{
+		{
+			FieldElement{9661027, 705443, 11980065, -5370154, -1628543, 14661173, -6346142, 2625015, 28431036, -16771834},
+			FieldElement{-23839233, -8311415, -25945511, 7480958, -17681669, -8354183, -22545972, 14150565, 15970762, 4099461},
+			FieldElement{29262576, 16756590, 26350592, -8793563, 8529671, -11208050, 13617293, -9937143, 11465739, 8317062},
+		},
+		{
+			FieldElement{-25493081, -6962928, 32500200, -9419051, -23038724, -2302222, 14898637, 3848455, 20969334, -5157516},
+			FieldElement{-20384450, -14347713, -18336405, 13884722, -33039454, 2842114, -21610826, -3649888, 11177095, 14989547},
+			FieldElement{-24496721, -11716016, 16959896, 2278463, 12066309, 10137771, 13515641, 2581286, -28487508, 9930240},
+		},
+		{
+			FieldElement{-17751622, -2097826, 16544300, -13009300, -15914807, -14949081, 18345767, -13403753, 16291481, -5314038},
+			FieldElement{-33229194, 2553288, 32678213, 9875984, 8534129, 6889387, -9676774, 6957617, 4368891, 9788741},
+			FieldElement{16660756, 7281060, -10830758, 12911820, 20108584, -8101676, -21722536, -8613148, 16250552, -11111103},
+		},
+		{
+			FieldElement{-19765507, 2390526, -16551031, 14161980, 1905286, 6414907, 4689584, 10604807, -30190403, 4782747},
+			FieldElement{-1354539, 14736941, -7367442, -13292886, 7710542, -14155590, -9981571, 4383045, 22546403, 437323},
+			FieldElement{31665577, -12180464, -16186830, 1491339, -18368625, 3294682, 27343084, 2786261, -30633590, -14097016},
+		},
+		{
+			FieldElement{-14467279, -683715, -33374107, 7448552, 19294360, 14334329, -19690631, 2355319, -19284671, -6114373},
+			FieldElement{15121312, -15796162, 6377020, -6031361, -10798111, -12957845, 18952177, 15496498, -29380133, 11754228},
+			FieldElement{-2637277, -13483075, 8488727, -14303896, 12728761, -1622493, 7141596, 11724556, 22761615, -10134141},
+		},
+		{
+			FieldElement{16918416, 11729663, -18083579, 3022987, -31015732, -13339659, -28741185, -12227393, 32851222, 11717399},
+			FieldElement{11166634, 7338049, -6722523, 4531520, -29468672, -7302055, 31474879, 3483633, -1193175, -4030831},
+			FieldElement{-185635, 9921305, 31456609, -13536438, -12013818, 13348923, 33142652, 6546660, -19985279, -3948376},
+		},
+		{
+			FieldElement{-32460596, 11266712, -11197107, -7899103, 31703694, 3855903, -8537131, -12833048, -30772034, -15486313},
+			FieldElement{-18006477, 12709068, 3991746, -6479188, -21491523, -10550425, -31135347, -16049879, 10928917, 3011958},
+			FieldElement{-6957757, -15594337, 31696059, 334240, 29576716, 14796075, -30831056, -12805180, 18008031, 10258577},
+		},
+		{
+			FieldElement{-22448644, 15655569, 7018479, -4410003, -30314266, -1201591, -1853465, 1367120, 25127874, 6671743},
+			FieldElement{29701166, -14373934, -10878120, 9279288, -17568, 13127210, 21382910, 11042292, 25838796, 4642684},
+			FieldElement{-20430234, 14955537, -24126347, 8124619, -5369288, -5990470, 30468147, -13900640, 18423289, 4177476},
+		},
+	},
+}
diff --git a/libgo/go/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go b/libgo/go/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go
new file mode 100644
index 0000000..fd03c25
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go
@@ -0,0 +1,1793 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package edwards25519
+
+import "encoding/binary"
+
+// This code is a port of the public domain, “ref10” implementation of ed25519
+// from SUPERCOP.
+
+// FieldElement represents an element of the field GF(2^255 - 19).  An element
+// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
+// t[3]+2^102 t[4]+...+2^230 t[9].  Bounds on each t[i] vary depending on
+// context.
+type FieldElement [10]int32
+
+var zero FieldElement
+
+func FeZero(fe *FieldElement) {
+	copy(fe[:], zero[:])
+}
+
+func FeOne(fe *FieldElement) {
+	FeZero(fe)
+	fe[0] = 1
+}
+
+func FeAdd(dst, a, b *FieldElement) {
+	dst[0] = a[0] + b[0]
+	dst[1] = a[1] + b[1]
+	dst[2] = a[2] + b[2]
+	dst[3] = a[3] + b[3]
+	dst[4] = a[4] + b[4]
+	dst[5] = a[5] + b[5]
+	dst[6] = a[6] + b[6]
+	dst[7] = a[7] + b[7]
+	dst[8] = a[8] + b[8]
+	dst[9] = a[9] + b[9]
+}
+
+func FeSub(dst, a, b *FieldElement) {
+	dst[0] = a[0] - b[0]
+	dst[1] = a[1] - b[1]
+	dst[2] = a[2] - b[2]
+	dst[3] = a[3] - b[3]
+	dst[4] = a[4] - b[4]
+	dst[5] = a[5] - b[5]
+	dst[6] = a[6] - b[6]
+	dst[7] = a[7] - b[7]
+	dst[8] = a[8] - b[8]
+	dst[9] = a[9] - b[9]
+}
+
+func FeCopy(dst, src *FieldElement) {
+	copy(dst[:], src[:])
+}
+
+// Replace (f,g) with (g,g) if b == 1;
+// replace (f,g) with (f,g) if b == 0.
+//
+// Preconditions: b in {0,1}.
+func FeCMove(f, g *FieldElement, b int32) {
+	b = -b
+	f[0] ^= b & (f[0] ^ g[0])
+	f[1] ^= b & (f[1] ^ g[1])
+	f[2] ^= b & (f[2] ^ g[2])
+	f[3] ^= b & (f[3] ^ g[3])
+	f[4] ^= b & (f[4] ^ g[4])
+	f[5] ^= b & (f[5] ^ g[5])
+	f[6] ^= b & (f[6] ^ g[6])
+	f[7] ^= b & (f[7] ^ g[7])
+	f[8] ^= b & (f[8] ^ g[8])
+	f[9] ^= b & (f[9] ^ g[9])
+}
+
+func load3(in []byte) int64 {
+	var r int64
+	r = int64(in[0])
+	r |= int64(in[1]) << 8
+	r |= int64(in[2]) << 16
+	return r
+}
+
+func load4(in []byte) int64 {
+	var r int64
+	r = int64(in[0])
+	r |= int64(in[1]) << 8
+	r |= int64(in[2]) << 16
+	r |= int64(in[3]) << 24
+	return r
+}
+
+func FeFromBytes(dst *FieldElement, src *[32]byte) {
+	h0 := load4(src[:])
+	h1 := load3(src[4:]) << 6
+	h2 := load3(src[7:]) << 5
+	h3 := load3(src[10:]) << 3
+	h4 := load3(src[13:]) << 2
+	h5 := load4(src[16:])
+	h6 := load3(src[20:]) << 7
+	h7 := load3(src[23:]) << 5
+	h8 := load3(src[26:]) << 4
+	h9 := (load3(src[29:]) & 8388607) << 2
+
+	FeCombine(dst, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9)
+}
+
+// FeToBytes marshals h to s.
+// Preconditions:
+//   |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+//
+// Write p=2^255-19; q=floor(h/p).
+// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
+//
+// Proof:
+//   Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
+//   Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4.
+//
+//   Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
+//   Then 0<y<1.
+//
+//   Write r=h-pq.
+//   Have 0<=r<=p-1=2^255-20.
+//   Thus 0<=r+19(2^-255)r<r+19(2^-255)2^255<=2^255-1.
+//
+//   Write x=r+19(2^-255)r+y.
+//   Then 0<x<2^255 so floor(2^(-255)x) = 0 so floor(q+2^(-255)x) = q.
+//
+//   Have q+2^(-255)x = 2^(-255)(h + 19 2^(-25) h9 + 2^(-1))
+//   so floor(2^(-255)(h + 19 2^(-25) h9 + 2^(-1))) = q.
+func FeToBytes(s *[32]byte, h *FieldElement) {
+	var carry [10]int32
+
+	q := (19*h[9] + (1 << 24)) >> 25
+	q = (h[0] + q) >> 26
+	q = (h[1] + q) >> 25
+	q = (h[2] + q) >> 26
+	q = (h[3] + q) >> 25
+	q = (h[4] + q) >> 26
+	q = (h[5] + q) >> 25
+	q = (h[6] + q) >> 26
+	q = (h[7] + q) >> 25
+	q = (h[8] + q) >> 26
+	q = (h[9] + q) >> 25
+
+	// Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20.
+	h[0] += 19 * q
+	// Goal: Output h-2^255 q, which is between 0 and 2^255-20.
+
+	carry[0] = h[0] >> 26
+	h[1] += carry[0]
+	h[0] -= carry[0] << 26
+	carry[1] = h[1] >> 25
+	h[2] += carry[1]
+	h[1] -= carry[1] << 25
+	carry[2] = h[2] >> 26
+	h[3] += carry[2]
+	h[2] -= carry[2] << 26
+	carry[3] = h[3] >> 25
+	h[4] += carry[3]
+	h[3] -= carry[3] << 25
+	carry[4] = h[4] >> 26
+	h[5] += carry[4]
+	h[4] -= carry[4] << 26
+	carry[5] = h[5] >> 25
+	h[6] += carry[5]
+	h[5] -= carry[5] << 25
+	carry[6] = h[6] >> 26
+	h[7] += carry[6]
+	h[6] -= carry[6] << 26
+	carry[7] = h[7] >> 25
+	h[8] += carry[7]
+	h[7] -= carry[7] << 25
+	carry[8] = h[8] >> 26
+	h[9] += carry[8]
+	h[8] -= carry[8] << 26
+	carry[9] = h[9] >> 25
+	h[9] -= carry[9] << 25
+	// h10 = carry9
+
+	// Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20.
+	// Have h[0]+...+2^230 h[9] between 0 and 2^255-1;
+	// evidently 2^255 h10-2^255 q = 0.
+	// Goal: Output h[0]+...+2^230 h[9].
+
+	s[0] = byte(h[0] >> 0)
+	s[1] = byte(h[0] >> 8)
+	s[2] = byte(h[0] >> 16)
+	s[3] = byte((h[0] >> 24) | (h[1] << 2))
+	s[4] = byte(h[1] >> 6)
+	s[5] = byte(h[1] >> 14)
+	s[6] = byte((h[1] >> 22) | (h[2] << 3))
+	s[7] = byte(h[2] >> 5)
+	s[8] = byte(h[2] >> 13)
+	s[9] = byte((h[2] >> 21) | (h[3] << 5))
+	s[10] = byte(h[3] >> 3)
+	s[11] = byte(h[3] >> 11)
+	s[12] = byte((h[3] >> 19) | (h[4] << 6))
+	s[13] = byte(h[4] >> 2)
+	s[14] = byte(h[4] >> 10)
+	s[15] = byte(h[4] >> 18)
+	s[16] = byte(h[5] >> 0)
+	s[17] = byte(h[5] >> 8)
+	s[18] = byte(h[5] >> 16)
+	s[19] = byte((h[5] >> 24) | (h[6] << 1))
+	s[20] = byte(h[6] >> 7)
+	s[21] = byte(h[6] >> 15)
+	s[22] = byte((h[6] >> 23) | (h[7] << 3))
+	s[23] = byte(h[7] >> 5)
+	s[24] = byte(h[7] >> 13)
+	s[25] = byte((h[7] >> 21) | (h[8] << 4))
+	s[26] = byte(h[8] >> 4)
+	s[27] = byte(h[8] >> 12)
+	s[28] = byte((h[8] >> 20) | (h[9] << 6))
+	s[29] = byte(h[9] >> 2)
+	s[30] = byte(h[9] >> 10)
+	s[31] = byte(h[9] >> 18)
+}
+
+func FeIsNegative(f *FieldElement) byte {
+	var s [32]byte
+	FeToBytes(&s, f)
+	return s[0] & 1
+}
+
+func FeIsNonZero(f *FieldElement) int32 {
+	var s [32]byte
+	FeToBytes(&s, f)
+	var x uint8
+	for _, b := range s {
+		x |= b
+	}
+	x |= x >> 4
+	x |= x >> 2
+	x |= x >> 1
+	return int32(x & 1)
+}
+
+// FeNeg sets h = -f
+//
+// Preconditions:
+//    |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+//
+// Postconditions:
+//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+func FeNeg(h, f *FieldElement) {
+	h[0] = -f[0]
+	h[1] = -f[1]
+	h[2] = -f[2]
+	h[3] = -f[3]
+	h[4] = -f[4]
+	h[5] = -f[5]
+	h[6] = -f[6]
+	h[7] = -f[7]
+	h[8] = -f[8]
+	h[9] = -f[9]
+}
+
+func FeCombine(h *FieldElement, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64) {
+	var c0, c1, c2, c3, c4, c5, c6, c7, c8, c9 int64
+
+	/*
+	  |h0| <= (1.1*1.1*2^52*(1+19+19+19+19)+1.1*1.1*2^50*(38+38+38+38+38))
+	    i.e. |h0| <= 1.2*2^59; narrower ranges for h2, h4, h6, h8
+	  |h1| <= (1.1*1.1*2^51*(1+1+19+19+19+19+19+19+19+19))
+	    i.e. |h1| <= 1.5*2^58; narrower ranges for h3, h5, h7, h9
+	*/
+
+	c0 = (h0 + (1 << 25)) >> 26
+	h1 += c0
+	h0 -= c0 << 26
+	c4 = (h4 + (1 << 25)) >> 26
+	h5 += c4
+	h4 -= c4 << 26
+	/* |h0| <= 2^25 */
+	/* |h4| <= 2^25 */
+	/* |h1| <= 1.51*2^58 */
+	/* |h5| <= 1.51*2^58 */
+
+	c1 = (h1 + (1 << 24)) >> 25
+	h2 += c1
+	h1 -= c1 << 25
+	c5 = (h5 + (1 << 24)) >> 25
+	h6 += c5
+	h5 -= c5 << 25
+	/* |h1| <= 2^24; from now on fits into int32 */
+	/* |h5| <= 2^24; from now on fits into int32 */
+	/* |h2| <= 1.21*2^59 */
+	/* |h6| <= 1.21*2^59 */
+
+	c2 = (h2 + (1 << 25)) >> 26
+	h3 += c2
+	h2 -= c2 << 26
+	c6 = (h6 + (1 << 25)) >> 26
+	h7 += c6
+	h6 -= c6 << 26
+	/* |h2| <= 2^25; from now on fits into int32 unchanged */
+	/* |h6| <= 2^25; from now on fits into int32 unchanged */
+	/* |h3| <= 1.51*2^58 */
+	/* |h7| <= 1.51*2^58 */
+
+	c3 = (h3 + (1 << 24)) >> 25
+	h4 += c3
+	h3 -= c3 << 25
+	c7 = (h7 + (1 << 24)) >> 25
+	h8 += c7
+	h7 -= c7 << 25
+	/* |h3| <= 2^24; from now on fits into int32 unchanged */
+	/* |h7| <= 2^24; from now on fits into int32 unchanged */
+	/* |h4| <= 1.52*2^33 */
+	/* |h8| <= 1.52*2^33 */
+
+	c4 = (h4 + (1 << 25)) >> 26
+	h5 += c4
+	h4 -= c4 << 26
+	c8 = (h8 + (1 << 25)) >> 26
+	h9 += c8
+	h8 -= c8 << 26
+	/* |h4| <= 2^25; from now on fits into int32 unchanged */
+	/* |h8| <= 2^25; from now on fits into int32 unchanged */
+	/* |h5| <= 1.01*2^24 */
+	/* |h9| <= 1.51*2^58 */
+
+	c9 = (h9 + (1 << 24)) >> 25
+	h0 += c9 * 19
+	h9 -= c9 << 25
+	/* |h9| <= 2^24; from now on fits into int32 unchanged */
+	/* |h0| <= 1.8*2^37 */
+
+	c0 = (h0 + (1 << 25)) >> 26
+	h1 += c0
+	h0 -= c0 << 26
+	/* |h0| <= 2^25; from now on fits into int32 unchanged */
+	/* |h1| <= 1.01*2^24 */
+
+	h[0] = int32(h0)
+	h[1] = int32(h1)
+	h[2] = int32(h2)
+	h[3] = int32(h3)
+	h[4] = int32(h4)
+	h[5] = int32(h5)
+	h[6] = int32(h6)
+	h[7] = int32(h7)
+	h[8] = int32(h8)
+	h[9] = int32(h9)
+}
+
+// FeMul calculates h = f * g
+// Can overlap h with f or g.
+//
+// Preconditions:
+//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+//    |g| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+//
+// Postconditions:
+//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+//
+// Notes on implementation strategy:
+//
+// Using schoolbook multiplication.
+// Karatsuba would save a little in some cost models.
+//
+// Most multiplications by 2 and 19 are 32-bit precomputations;
+// cheaper than 64-bit postcomputations.
+//
+// There is one remaining multiplication by 19 in the carry chain;
+// one *19 precomputation can be merged into this,
+// but the resulting data flow is considerably less clean.
+//
+// There are 12 carries below.
+// 10 of them are 2-way parallelizable and vectorizable.
+// Can get away with 11 carries, but then data flow is much deeper.
+//
+// With tighter constraints on inputs, can squeeze carries into int32.
+func FeMul(h, f, g *FieldElement) {
+	f0 := int64(f[0])
+	f1 := int64(f[1])
+	f2 := int64(f[2])
+	f3 := int64(f[3])
+	f4 := int64(f[4])
+	f5 := int64(f[5])
+	f6 := int64(f[6])
+	f7 := int64(f[7])
+	f8 := int64(f[8])
+	f9 := int64(f[9])
+
+	f1_2 := int64(2 * f[1])
+	f3_2 := int64(2 * f[3])
+	f5_2 := int64(2 * f[5])
+	f7_2 := int64(2 * f[7])
+	f9_2 := int64(2 * f[9])
+
+	g0 := int64(g[0])
+	g1 := int64(g[1])
+	g2 := int64(g[2])
+	g3 := int64(g[3])
+	g4 := int64(g[4])
+	g5 := int64(g[5])
+	g6 := int64(g[6])
+	g7 := int64(g[7])
+	g8 := int64(g[8])
+	g9 := int64(g[9])
+
+	g1_19 := int64(19 * g[1]) /* 1.4*2^29 */
+	g2_19 := int64(19 * g[2]) /* 1.4*2^30; still ok */
+	g3_19 := int64(19 * g[3])
+	g4_19 := int64(19 * g[4])
+	g5_19 := int64(19 * g[5])
+	g6_19 := int64(19 * g[6])
+	g7_19 := int64(19 * g[7])
+	g8_19 := int64(19 * g[8])
+	g9_19 := int64(19 * g[9])
+
+	h0 := f0*g0 + f1_2*g9_19 + f2*g8_19 + f3_2*g7_19 + f4*g6_19 + f5_2*g5_19 + f6*g4_19 + f7_2*g3_19 + f8*g2_19 + f9_2*g1_19
+	h1 := f0*g1 + f1*g0 + f2*g9_19 + f3*g8_19 + f4*g7_19 + f5*g6_19 + f6*g5_19 + f7*g4_19 + f8*g3_19 + f9*g2_19
+	h2 := f0*g2 + f1_2*g1 + f2*g0 + f3_2*g9_19 + f4*g8_19 + f5_2*g7_19 + f6*g6_19 + f7_2*g5_19 + f8*g4_19 + f9_2*g3_19
+	h3 := f0*g3 + f1*g2 + f2*g1 + f3*g0 + f4*g9_19 + f5*g8_19 + f6*g7_19 + f7*g6_19 + f8*g5_19 + f9*g4_19
+	h4 := f0*g4 + f1_2*g3 + f2*g2 + f3_2*g1 + f4*g0 + f5_2*g9_19 + f6*g8_19 + f7_2*g7_19 + f8*g6_19 + f9_2*g5_19
+	h5 := f0*g5 + f1*g4 + f2*g3 + f3*g2 + f4*g1 + f5*g0 + f6*g9_19 + f7*g8_19 + f8*g7_19 + f9*g6_19
+	h6 := f0*g6 + f1_2*g5 + f2*g4 + f3_2*g3 + f4*g2 + f5_2*g1 + f6*g0 + f7_2*g9_19 + f8*g8_19 + f9_2*g7_19
+	h7 := f0*g7 + f1*g6 + f2*g5 + f3*g4 + f4*g3 + f5*g2 + f6*g1 + f7*g0 + f8*g9_19 + f9*g8_19
+	h8 := f0*g8 + f1_2*g7 + f2*g6 + f3_2*g5 + f4*g4 + f5_2*g3 + f6*g2 + f7_2*g1 + f8*g0 + f9_2*g9_19
+	h9 := f0*g9 + f1*g8 + f2*g7 + f3*g6 + f4*g5 + f5*g4 + f6*g3 + f7*g2 + f8*g1 + f9*g0
+
+	FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9)
+}
+
+func feSquare(f *FieldElement) (h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64) {
+	f0 := int64(f[0])
+	f1 := int64(f[1])
+	f2 := int64(f[2])
+	f3 := int64(f[3])
+	f4 := int64(f[4])
+	f5 := int64(f[5])
+	f6 := int64(f[6])
+	f7 := int64(f[7])
+	f8 := int64(f[8])
+	f9 := int64(f[9])
+	f0_2 := int64(2 * f[0])
+	f1_2 := int64(2 * f[1])
+	f2_2 := int64(2 * f[2])
+	f3_2 := int64(2 * f[3])
+	f4_2 := int64(2 * f[4])
+	f5_2 := int64(2 * f[5])
+	f6_2 := int64(2 * f[6])
+	f7_2 := int64(2 * f[7])
+	f5_38 := 38 * f5 // 1.31*2^30
+	f6_19 := 19 * f6 // 1.31*2^30
+	f7_38 := 38 * f7 // 1.31*2^30
+	f8_19 := 19 * f8 // 1.31*2^30
+	f9_38 := 38 * f9 // 1.31*2^30
+
+	h0 = f0*f0 + f1_2*f9_38 + f2_2*f8_19 + f3_2*f7_38 + f4_2*f6_19 + f5*f5_38
+	h1 = f0_2*f1 + f2*f9_38 + f3_2*f8_19 + f4*f7_38 + f5_2*f6_19
+	h2 = f0_2*f2 + f1_2*f1 + f3_2*f9_38 + f4_2*f8_19 + f5_2*f7_38 + f6*f6_19
+	h3 = f0_2*f3 + f1_2*f2 + f4*f9_38 + f5_2*f8_19 + f6*f7_38
+	h4 = f0_2*f4 + f1_2*f3_2 + f2*f2 + f5_2*f9_38 + f6_2*f8_19 + f7*f7_38
+	h5 = f0_2*f5 + f1_2*f4 + f2_2*f3 + f6*f9_38 + f7_2*f8_19
+	h6 = f0_2*f6 + f1_2*f5_2 + f2_2*f4 + f3_2*f3 + f7_2*f9_38 + f8*f8_19
+	h7 = f0_2*f7 + f1_2*f6 + f2_2*f5 + f3_2*f4 + f8*f9_38
+	h8 = f0_2*f8 + f1_2*f7_2 + f2_2*f6 + f3_2*f5_2 + f4*f4 + f9*f9_38
+	h9 = f0_2*f9 + f1_2*f8 + f2_2*f7 + f3_2*f6 + f4_2*f5
+
+	return
+}
+
+// FeSquare calculates h = f*f. Can overlap h with f.
+//
+// Preconditions:
+//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+//
+// Postconditions:
+//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+func FeSquare(h, f *FieldElement) {
+	h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 := feSquare(f)
+	FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9)
+}
+
+// FeSquare2 sets h = 2 * f * f
+//
+// Can overlap h with f.
+//
+// Preconditions:
+//    |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc.
+//
+// Postconditions:
+//    |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc.
+// See fe_mul.c for discussion of implementation strategy.
+func FeSquare2(h, f *FieldElement) {
+	h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 := feSquare(f)
+
+	h0 += h0
+	h1 += h1
+	h2 += h2
+	h3 += h3
+	h4 += h4
+	h5 += h5
+	h6 += h6
+	h7 += h7
+	h8 += h8
+	h9 += h9
+
+	FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9)
+}
+
+func FeInvert(out, z *FieldElement) {
+	var t0, t1, t2, t3 FieldElement
+	var i int
+
+	FeSquare(&t0, z)        // 2^1
+	FeSquare(&t1, &t0)      // 2^2
+	for i = 1; i < 2; i++ { // 2^3
+		FeSquare(&t1, &t1)
+	}
+	FeMul(&t1, z, &t1)      // 2^3 + 2^0
+	FeMul(&t0, &t0, &t1)    // 2^3 + 2^1 + 2^0
+	FeSquare(&t2, &t0)      // 2^4 + 2^2 + 2^1
+	FeMul(&t1, &t1, &t2)    // 2^4 + 2^3 + 2^2 + 2^1 + 2^0
+	FeSquare(&t2, &t1)      // 5,4,3,2,1
+	for i = 1; i < 5; i++ { // 9,8,7,6,5
+		FeSquare(&t2, &t2)
+	}
+	FeMul(&t1, &t2, &t1)     // 9,8,7,6,5,4,3,2,1,0
+	FeSquare(&t2, &t1)       // 10..1
+	for i = 1; i < 10; i++ { // 19..10
+		FeSquare(&t2, &t2)
+	}
+	FeMul(&t2, &t2, &t1)     // 19..0
+	FeSquare(&t3, &t2)       // 20..1
+	for i = 1; i < 20; i++ { // 39..20
+		FeSquare(&t3, &t3)
+	}
+	FeMul(&t2, &t3, &t2)     // 39..0
+	FeSquare(&t2, &t2)       // 40..1
+	for i = 1; i < 10; i++ { // 49..10
+		FeSquare(&t2, &t2)
+	}
+	FeMul(&t1, &t2, &t1)     // 49..0
+	FeSquare(&t2, &t1)       // 50..1
+	for i = 1; i < 50; i++ { // 99..50
+		FeSquare(&t2, &t2)
+	}
+	FeMul(&t2, &t2, &t1)      // 99..0
+	FeSquare(&t3, &t2)        // 100..1
+	for i = 1; i < 100; i++ { // 199..100
+		FeSquare(&t3, &t3)
+	}
+	FeMul(&t2, &t3, &t2)     // 199..0
+	FeSquare(&t2, &t2)       // 200..1
+	for i = 1; i < 50; i++ { // 249..50
+		FeSquare(&t2, &t2)
+	}
+	FeMul(&t1, &t2, &t1)    // 249..0
+	FeSquare(&t1, &t1)      // 250..1
+	for i = 1; i < 5; i++ { // 254..5
+		FeSquare(&t1, &t1)
+	}
+	FeMul(out, &t1, &t0) // 254..5,3,1,0
+}
+
+func fePow22523(out, z *FieldElement) {
+	var t0, t1, t2 FieldElement
+	var i int
+
+	FeSquare(&t0, z)
+	for i = 1; i < 1; i++ {
+		FeSquare(&t0, &t0)
+	}
+	FeSquare(&t1, &t0)
+	for i = 1; i < 2; i++ {
+		FeSquare(&t1, &t1)
+	}
+	FeMul(&t1, z, &t1)
+	FeMul(&t0, &t0, &t1)
+	FeSquare(&t0, &t0)
+	for i = 1; i < 1; i++ {
+		FeSquare(&t0, &t0)
+	}
+	FeMul(&t0, &t1, &t0)
+	FeSquare(&t1, &t0)
+	for i = 1; i < 5; i++ {
+		FeSquare(&t1, &t1)
+	}
+	FeMul(&t0, &t1, &t0)
+	FeSquare(&t1, &t0)
+	for i = 1; i < 10; i++ {
+		FeSquare(&t1, &t1)
+	}
+	FeMul(&t1, &t1, &t0)
+	FeSquare(&t2, &t1)
+	for i = 1; i < 20; i++ {
+		FeSquare(&t2, &t2)
+	}
+	FeMul(&t1, &t2, &t1)
+	FeSquare(&t1, &t1)
+	for i = 1; i < 10; i++ {
+		FeSquare(&t1, &t1)
+	}
+	FeMul(&t0, &t1, &t0)
+	FeSquare(&t1, &t0)
+	for i = 1; i < 50; i++ {
+		FeSquare(&t1, &t1)
+	}
+	FeMul(&t1, &t1, &t0)
+	FeSquare(&t2, &t1)
+	for i = 1; i < 100; i++ {
+		FeSquare(&t2, &t2)
+	}
+	FeMul(&t1, &t2, &t1)
+	FeSquare(&t1, &t1)
+	for i = 1; i < 50; i++ {
+		FeSquare(&t1, &t1)
+	}
+	FeMul(&t0, &t1, &t0)
+	FeSquare(&t0, &t0)
+	for i = 1; i < 2; i++ {
+		FeSquare(&t0, &t0)
+	}
+	FeMul(out, &t0, z)
+}
+
+// Group elements are members of the elliptic curve -x^2 + y^2 = 1 + d * x^2 *
+// y^2 where d = -121665/121666.
+//
+// Several representations are used:
+//   ProjectiveGroupElement: (X:Y:Z) satisfying x=X/Z, y=Y/Z
+//   ExtendedGroupElement: (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT
+//   CompletedGroupElement: ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T
+//   PreComputedGroupElement: (y+x,y-x,2dxy)
+
+type ProjectiveGroupElement struct {
+	X, Y, Z FieldElement
+}
+
+type ExtendedGroupElement struct {
+	X, Y, Z, T FieldElement
+}
+
+type CompletedGroupElement struct {
+	X, Y, Z, T FieldElement
+}
+
+type PreComputedGroupElement struct {
+	yPlusX, yMinusX, xy2d FieldElement
+}
+
+type CachedGroupElement struct {
+	yPlusX, yMinusX, Z, T2d FieldElement
+}
+
+func (p *ProjectiveGroupElement) Zero() {
+	FeZero(&p.X)
+	FeOne(&p.Y)
+	FeOne(&p.Z)
+}
+
+func (p *ProjectiveGroupElement) Double(r *CompletedGroupElement) {
+	var t0 FieldElement
+
+	FeSquare(&r.X, &p.X)
+	FeSquare(&r.Z, &p.Y)
+	FeSquare2(&r.T, &p.Z)
+	FeAdd(&r.Y, &p.X, &p.Y)
+	FeSquare(&t0, &r.Y)
+	FeAdd(&r.Y, &r.Z, &r.X)
+	FeSub(&r.Z, &r.Z, &r.X)
+	FeSub(&r.X, &t0, &r.Y)
+	FeSub(&r.T, &r.T, &r.Z)
+}
+
+func (p *ProjectiveGroupElement) ToBytes(s *[32]byte) {
+	var recip, x, y FieldElement
+
+	FeInvert(&recip, &p.Z)
+	FeMul(&x, &p.X, &recip)
+	FeMul(&y, &p.Y, &recip)
+	FeToBytes(s, &y)
+	s[31] ^= FeIsNegative(&x) << 7
+}
+
+func (p *ExtendedGroupElement) Zero() {
+	FeZero(&p.X)
+	FeOne(&p.Y)
+	FeOne(&p.Z)
+	FeZero(&p.T)
+}
+
+func (p *ExtendedGroupElement) Double(r *CompletedGroupElement) {
+	var q ProjectiveGroupElement
+	p.ToProjective(&q)
+	q.Double(r)
+}
+
+func (p *ExtendedGroupElement) ToCached(r *CachedGroupElement) {
+	FeAdd(&r.yPlusX, &p.Y, &p.X)
+	FeSub(&r.yMinusX, &p.Y, &p.X)
+	FeCopy(&r.Z, &p.Z)
+	FeMul(&r.T2d, &p.T, &d2)
+}
+
+func (p *ExtendedGroupElement) ToProjective(r *ProjectiveGroupElement) {
+	FeCopy(&r.X, &p.X)
+	FeCopy(&r.Y, &p.Y)
+	FeCopy(&r.Z, &p.Z)
+}
+
+func (p *ExtendedGroupElement) ToBytes(s *[32]byte) {
+	var recip, x, y FieldElement
+
+	FeInvert(&recip, &p.Z)
+	FeMul(&x, &p.X, &recip)
+	FeMul(&y, &p.Y, &recip)
+	FeToBytes(s, &y)
+	s[31] ^= FeIsNegative(&x) << 7
+}
+
+func (p *ExtendedGroupElement) FromBytes(s *[32]byte) bool {
+	var u, v, v3, vxx, check FieldElement
+
+	FeFromBytes(&p.Y, s)
+	FeOne(&p.Z)
+	FeSquare(&u, &p.Y)
+	FeMul(&v, &u, &d)
+	FeSub(&u, &u, &p.Z) // y = y^2-1
+	FeAdd(&v, &v, &p.Z) // v = dy^2+1
+
+	FeSquare(&v3, &v)
+	FeMul(&v3, &v3, &v) // v3 = v^3
+	FeSquare(&p.X, &v3)
+	FeMul(&p.X, &p.X, &v)
+	FeMul(&p.X, &p.X, &u) // x = uv^7
+
+	fePow22523(&p.X, &p.X) // x = (uv^7)^((q-5)/8)
+	FeMul(&p.X, &p.X, &v3)
+	FeMul(&p.X, &p.X, &u) // x = uv^3(uv^7)^((q-5)/8)
+
+	var tmpX, tmp2 [32]byte
+
+	FeSquare(&vxx, &p.X)
+	FeMul(&vxx, &vxx, &v)
+	FeSub(&check, &vxx, &u) // vx^2-u
+	if FeIsNonZero(&check) == 1 {
+		FeAdd(&check, &vxx, &u) // vx^2+u
+		if FeIsNonZero(&check) == 1 {
+			return false
+		}
+		FeMul(&p.X, &p.X, &SqrtM1)
+
+		FeToBytes(&tmpX, &p.X)
+		for i, v := range tmpX {
+			tmp2[31-i] = v
+		}
+	}
+
+	if FeIsNegative(&p.X) != (s[31] >> 7) {
+		FeNeg(&p.X, &p.X)
+	}
+
+	FeMul(&p.T, &p.X, &p.Y)
+	return true
+}
+
+func (p *CompletedGroupElement) ToProjective(r *ProjectiveGroupElement) {
+	FeMul(&r.X, &p.X, &p.T)
+	FeMul(&r.Y, &p.Y, &p.Z)
+	FeMul(&r.Z, &p.Z, &p.T)
+}
+
+func (p *CompletedGroupElement) ToExtended(r *ExtendedGroupElement) {
+	FeMul(&r.X, &p.X, &p.T)
+	FeMul(&r.Y, &p.Y, &p.Z)
+	FeMul(&r.Z, &p.Z, &p.T)
+	FeMul(&r.T, &p.X, &p.Y)
+}
+
+func (p *PreComputedGroupElement) Zero() {
+	FeOne(&p.yPlusX)
+	FeOne(&p.yMinusX)
+	FeZero(&p.xy2d)
+}
+
+func geAdd(r *CompletedGroupElement, p *ExtendedGroupElement, q *CachedGroupElement) {
+	var t0 FieldElement
+
+	FeAdd(&r.X, &p.Y, &p.X)
+	FeSub(&r.Y, &p.Y, &p.X)
+	FeMul(&r.Z, &r.X, &q.yPlusX)
+	FeMul(&r.Y, &r.Y, &q.yMinusX)
+	FeMul(&r.T, &q.T2d, &p.T)
+	FeMul(&r.X, &p.Z, &q.Z)
+	FeAdd(&t0, &r.X, &r.X)
+	FeSub(&r.X, &r.Z, &r.Y)
+	FeAdd(&r.Y, &r.Z, &r.Y)
+	FeAdd(&r.Z, &t0, &r.T)
+	FeSub(&r.T, &t0, &r.T)
+}
+
+func geSub(r *CompletedGroupElement, p *ExtendedGroupElement, q *CachedGroupElement) {
+	var t0 FieldElement
+
+	FeAdd(&r.X, &p.Y, &p.X)
+	FeSub(&r.Y, &p.Y, &p.X)
+	FeMul(&r.Z, &r.X, &q.yMinusX)
+	FeMul(&r.Y, &r.Y, &q.yPlusX)
+	FeMul(&r.T, &q.T2d, &p.T)
+	FeMul(&r.X, &p.Z, &q.Z)
+	FeAdd(&t0, &r.X, &r.X)
+	FeSub(&r.X, &r.Z, &r.Y)
+	FeAdd(&r.Y, &r.Z, &r.Y)
+	FeSub(&r.Z, &t0, &r.T)
+	FeAdd(&r.T, &t0, &r.T)
+}
+
+func geMixedAdd(r *CompletedGroupElement, p *ExtendedGroupElement, q *PreComputedGroupElement) {
+	var t0 FieldElement
+
+	FeAdd(&r.X, &p.Y, &p.X)
+	FeSub(&r.Y, &p.Y, &p.X)
+	FeMul(&r.Z, &r.X, &q.yPlusX)
+	FeMul(&r.Y, &r.Y, &q.yMinusX)
+	FeMul(&r.T, &q.xy2d, &p.T)
+	FeAdd(&t0, &p.Z, &p.Z)
+	FeSub(&r.X, &r.Z, &r.Y)
+	FeAdd(&r.Y, &r.Z, &r.Y)
+	FeAdd(&r.Z, &t0, &r.T)
+	FeSub(&r.T, &t0, &r.T)
+}
+
+func geMixedSub(r *CompletedGroupElement, p *ExtendedGroupElement, q *PreComputedGroupElement) {
+	var t0 FieldElement
+
+	FeAdd(&r.X, &p.Y, &p.X)
+	FeSub(&r.Y, &p.Y, &p.X)
+	FeMul(&r.Z, &r.X, &q.yMinusX)
+	FeMul(&r.Y, &r.Y, &q.yPlusX)
+	FeMul(&r.T, &q.xy2d, &p.T)
+	FeAdd(&t0, &p.Z, &p.Z)
+	FeSub(&r.X, &r.Z, &r.Y)
+	FeAdd(&r.Y, &r.Z, &r.Y)
+	FeSub(&r.Z, &t0, &r.T)
+	FeAdd(&r.T, &t0, &r.T)
+}
+
+func slide(r *[256]int8, a *[32]byte) {
+	for i := range r {
+		r[i] = int8(1 & (a[i>>3] >> uint(i&7)))
+	}
+
+	for i := range r {
+		if r[i] != 0 {
+			for b := 1; b <= 6 && i+b < 256; b++ {
+				if r[i+b] != 0 {
+					if r[i]+(r[i+b]<<uint(b)) <= 15 {
+						r[i] += r[i+b] << uint(b)
+						r[i+b] = 0
+					} else if r[i]-(r[i+b]<<uint(b)) >= -15 {
+						r[i] -= r[i+b] << uint(b)
+						for k := i + b; k < 256; k++ {
+							if r[k] == 0 {
+								r[k] = 1
+								break
+							}
+							r[k] = 0
+						}
+					} else {
+						break
+					}
+				}
+			}
+		}
+	}
+}
+
+// GeDoubleScalarMultVartime sets r = a*A + b*B
+// where a = a[0]+256*a[1]+...+256^31 a[31].
+// and b = b[0]+256*b[1]+...+256^31 b[31].
+// B is the Ed25519 base point (x,4/5) with x positive.
+func GeDoubleScalarMultVartime(r *ProjectiveGroupElement, a *[32]byte, A *ExtendedGroupElement, b *[32]byte) {
+	var aSlide, bSlide [256]int8
+	var Ai [8]CachedGroupElement // A,3A,5A,7A,9A,11A,13A,15A
+	var t CompletedGroupElement
+	var u, A2 ExtendedGroupElement
+	var i int
+
+	slide(&aSlide, a)
+	slide(&bSlide, b)
+
+	A.ToCached(&Ai[0])
+	A.Double(&t)
+	t.ToExtended(&A2)
+
+	for i := 0; i < 7; i++ {
+		geAdd(&t, &A2, &Ai[i])
+		t.ToExtended(&u)
+		u.ToCached(&Ai[i+1])
+	}
+
+	r.Zero()
+
+	for i = 255; i >= 0; i-- {
+		if aSlide[i] != 0 || bSlide[i] != 0 {
+			break
+		}
+	}
+
+	for ; i >= 0; i-- {
+		r.Double(&t)
+
+		if aSlide[i] > 0 {
+			t.ToExtended(&u)
+			geAdd(&t, &u, &Ai[aSlide[i]/2])
+		} else if aSlide[i] < 0 {
+			t.ToExtended(&u)
+			geSub(&t, &u, &Ai[(-aSlide[i])/2])
+		}
+
+		if bSlide[i] > 0 {
+			t.ToExtended(&u)
+			geMixedAdd(&t, &u, &bi[bSlide[i]/2])
+		} else if bSlide[i] < 0 {
+			t.ToExtended(&u)
+			geMixedSub(&t, &u, &bi[(-bSlide[i])/2])
+		}
+
+		t.ToProjective(r)
+	}
+}
+
+// equal returns 1 if b == c and 0 otherwise, assuming that b and c are
+// non-negative.
+func equal(b, c int32) int32 {
+	x := uint32(b ^ c)
+	x--
+	return int32(x >> 31)
+}
+
+// negative returns 1 if b < 0 and 0 otherwise.
+func negative(b int32) int32 {
+	return (b >> 31) & 1
+}
+
+func PreComputedGroupElementCMove(t, u *PreComputedGroupElement, b int32) {
+	FeCMove(&t.yPlusX, &u.yPlusX, b)
+	FeCMove(&t.yMinusX, &u.yMinusX, b)
+	FeCMove(&t.xy2d, &u.xy2d, b)
+}
+
+func selectPoint(t *PreComputedGroupElement, pos int32, b int32) {
+	var minusT PreComputedGroupElement
+	bNegative := negative(b)
+	bAbs := b - (((-bNegative) & b) << 1)
+
+	t.Zero()
+	for i := int32(0); i < 8; i++ {
+		PreComputedGroupElementCMove(t, &base[pos][i], equal(bAbs, i+1))
+	}
+	FeCopy(&minusT.yPlusX, &t.yMinusX)
+	FeCopy(&minusT.yMinusX, &t.yPlusX)
+	FeNeg(&minusT.xy2d, &t.xy2d)
+	PreComputedGroupElementCMove(t, &minusT, bNegative)
+}
+
+// GeScalarMultBase computes h = a*B, where
+//   a = a[0]+256*a[1]+...+256^31 a[31]
+//   B is the Ed25519 base point (x,4/5) with x positive.
+//
+// Preconditions:
+//   a[31] <= 127
+func GeScalarMultBase(h *ExtendedGroupElement, a *[32]byte) {
+	var e [64]int8
+
+	for i, v := range a {
+		e[2*i] = int8(v & 15)
+		e[2*i+1] = int8((v >> 4) & 15)
+	}
+
+	// each e[i] is between 0 and 15 and e[63] is between 0 and 7.
+
+	carry := int8(0)
+	for i := 0; i < 63; i++ {
+		e[i] += carry
+		carry = (e[i] + 8) >> 4
+		e[i] -= carry << 4
+	}
+	e[63] += carry
+	// each e[i] is between -8 and 8.
+
+	h.Zero()
+	var t PreComputedGroupElement
+	var r CompletedGroupElement
+	for i := int32(1); i < 64; i += 2 {
+		selectPoint(&t, i/2, int32(e[i]))
+		geMixedAdd(&r, h, &t)
+		r.ToExtended(h)
+	}
+
+	var s ProjectiveGroupElement
+
+	h.Double(&r)
+	r.ToProjective(&s)
+	s.Double(&r)
+	r.ToProjective(&s)
+	s.Double(&r)
+	r.ToProjective(&s)
+	s.Double(&r)
+	r.ToExtended(h)
+
+	for i := int32(0); i < 64; i += 2 {
+		selectPoint(&t, i/2, int32(e[i]))
+		geMixedAdd(&r, h, &t)
+		r.ToExtended(h)
+	}
+}
+
+// The scalars are GF(2^252 + 27742317777372353535851937790883648493).
+
+// Input:
+//   a[0]+256*a[1]+...+256^31*a[31] = a
+//   b[0]+256*b[1]+...+256^31*b[31] = b
+//   c[0]+256*c[1]+...+256^31*c[31] = c
+//
+// Output:
+//   s[0]+256*s[1]+...+256^31*s[31] = (ab+c) mod l
+//   where l = 2^252 + 27742317777372353535851937790883648493.
+func ScMulAdd(s, a, b, c *[32]byte) {
+	a0 := 2097151 & load3(a[:])
+	a1 := 2097151 & (load4(a[2:]) >> 5)
+	a2 := 2097151 & (load3(a[5:]) >> 2)
+	a3 := 2097151 & (load4(a[7:]) >> 7)
+	a4 := 2097151 & (load4(a[10:]) >> 4)
+	a5 := 2097151 & (load3(a[13:]) >> 1)
+	a6 := 2097151 & (load4(a[15:]) >> 6)
+	a7 := 2097151 & (load3(a[18:]) >> 3)
+	a8 := 2097151 & load3(a[21:])
+	a9 := 2097151 & (load4(a[23:]) >> 5)
+	a10 := 2097151 & (load3(a[26:]) >> 2)
+	a11 := (load4(a[28:]) >> 7)
+	b0 := 2097151 & load3(b[:])
+	b1 := 2097151 & (load4(b[2:]) >> 5)
+	b2 := 2097151 & (load3(b[5:]) >> 2)
+	b3 := 2097151 & (load4(b[7:]) >> 7)
+	b4 := 2097151 & (load4(b[10:]) >> 4)
+	b5 := 2097151 & (load3(b[13:]) >> 1)
+	b6 := 2097151 & (load4(b[15:]) >> 6)
+	b7 := 2097151 & (load3(b[18:]) >> 3)
+	b8 := 2097151 & load3(b[21:])
+	b9 := 2097151 & (load4(b[23:]) >> 5)
+	b10 := 2097151 & (load3(b[26:]) >> 2)
+	b11 := (load4(b[28:]) >> 7)
+	c0 := 2097151 & load3(c[:])
+	c1 := 2097151 & (load4(c[2:]) >> 5)
+	c2 := 2097151 & (load3(c[5:]) >> 2)
+	c3 := 2097151 & (load4(c[7:]) >> 7)
+	c4 := 2097151 & (load4(c[10:]) >> 4)
+	c5 := 2097151 & (load3(c[13:]) >> 1)
+	c6 := 2097151 & (load4(c[15:]) >> 6)
+	c7 := 2097151 & (load3(c[18:]) >> 3)
+	c8 := 2097151 & load3(c[21:])
+	c9 := 2097151 & (load4(c[23:]) >> 5)
+	c10 := 2097151 & (load3(c[26:]) >> 2)
+	c11 := (load4(c[28:]) >> 7)
+	var carry [23]int64
+
+	s0 := c0 + a0*b0
+	s1 := c1 + a0*b1 + a1*b0
+	s2 := c2 + a0*b2 + a1*b1 + a2*b0
+	s3 := c3 + a0*b3 + a1*b2 + a2*b1 + a3*b0
+	s4 := c4 + a0*b4 + a1*b3 + a2*b2 + a3*b1 + a4*b0
+	s5 := c5 + a0*b5 + a1*b4 + a2*b3 + a3*b2 + a4*b1 + a5*b0
+	s6 := c6 + a0*b6 + a1*b5 + a2*b4 + a3*b3 + a4*b2 + a5*b1 + a6*b0
+	s7 := c7 + a0*b7 + a1*b6 + a2*b5 + a3*b4 + a4*b3 + a5*b2 + a6*b1 + a7*b0
+	s8 := c8 + a0*b8 + a1*b7 + a2*b6 + a3*b5 + a4*b4 + a5*b3 + a6*b2 + a7*b1 + a8*b0
+	s9 := c9 + a0*b9 + a1*b8 + a2*b7 + a3*b6 + a4*b5 + a5*b4 + a6*b3 + a7*b2 + a8*b1 + a9*b0
+	s10 := c10 + a0*b10 + a1*b9 + a2*b8 + a3*b7 + a4*b6 + a5*b5 + a6*b4 + a7*b3 + a8*b2 + a9*b1 + a10*b0
+	s11 := c11 + a0*b11 + a1*b10 + a2*b9 + a3*b8 + a4*b7 + a5*b6 + a6*b5 + a7*b4 + a8*b3 + a9*b2 + a10*b1 + a11*b0
+	s12 := a1*b11 + a2*b10 + a3*b9 + a4*b8 + a5*b7 + a6*b6 + a7*b5 + a8*b4 + a9*b3 + a10*b2 + a11*b1
+	s13 := a2*b11 + a3*b10 + a4*b9 + a5*b8 + a6*b7 + a7*b6 + a8*b5 + a9*b4 + a10*b3 + a11*b2
+	s14 := a3*b11 + a4*b10 + a5*b9 + a6*b8 + a7*b7 + a8*b6 + a9*b5 + a10*b4 + a11*b3
+	s15 := a4*b11 + a5*b10 + a6*b9 + a7*b8 + a8*b7 + a9*b6 + a10*b5 + a11*b4
+	s16 := a5*b11 + a6*b10 + a7*b9 + a8*b8 + a9*b7 + a10*b6 + a11*b5
+	s17 := a6*b11 + a7*b10 + a8*b9 + a9*b8 + a10*b7 + a11*b6
+	s18 := a7*b11 + a8*b10 + a9*b9 + a10*b8 + a11*b7
+	s19 := a8*b11 + a9*b10 + a10*b9 + a11*b8
+	s20 := a9*b11 + a10*b10 + a11*b9
+	s21 := a10*b11 + a11*b10
+	s22 := a11 * b11
+	s23 := int64(0)
+
+	carry[0] = (s0 + (1 << 20)) >> 21
+	s1 += carry[0]
+	s0 -= carry[0] << 21
+	carry[2] = (s2 + (1 << 20)) >> 21
+	s3 += carry[2]
+	s2 -= carry[2] << 21
+	carry[4] = (s4 + (1 << 20)) >> 21
+	s5 += carry[4]
+	s4 -= carry[4] << 21
+	carry[6] = (s6 + (1 << 20)) >> 21
+	s7 += carry[6]
+	s6 -= carry[6] << 21
+	carry[8] = (s8 + (1 << 20)) >> 21
+	s9 += carry[8]
+	s8 -= carry[8] << 21
+	carry[10] = (s10 + (1 << 20)) >> 21
+	s11 += carry[10]
+	s10 -= carry[10] << 21
+	carry[12] = (s12 + (1 << 20)) >> 21
+	s13 += carry[12]
+	s12 -= carry[12] << 21
+	carry[14] = (s14 + (1 << 20)) >> 21
+	s15 += carry[14]
+	s14 -= carry[14] << 21
+	carry[16] = (s16 + (1 << 20)) >> 21
+	s17 += carry[16]
+	s16 -= carry[16] << 21
+	carry[18] = (s18 + (1 << 20)) >> 21
+	s19 += carry[18]
+	s18 -= carry[18] << 21
+	carry[20] = (s20 + (1 << 20)) >> 21
+	s21 += carry[20]
+	s20 -= carry[20] << 21
+	carry[22] = (s22 + (1 << 20)) >> 21
+	s23 += carry[22]
+	s22 -= carry[22] << 21
+
+	carry[1] = (s1 + (1 << 20)) >> 21
+	s2 += carry[1]
+	s1 -= carry[1] << 21
+	carry[3] = (s3 + (1 << 20)) >> 21
+	s4 += carry[3]
+	s3 -= carry[3] << 21
+	carry[5] = (s5 + (1 << 20)) >> 21
+	s6 += carry[5]
+	s5 -= carry[5] << 21
+	carry[7] = (s7 + (1 << 20)) >> 21
+	s8 += carry[7]
+	s7 -= carry[7] << 21
+	carry[9] = (s9 + (1 << 20)) >> 21
+	s10 += carry[9]
+	s9 -= carry[9] << 21
+	carry[11] = (s11 + (1 << 20)) >> 21
+	s12 += carry[11]
+	s11 -= carry[11] << 21
+	carry[13] = (s13 + (1 << 20)) >> 21
+	s14 += carry[13]
+	s13 -= carry[13] << 21
+	carry[15] = (s15 + (1 << 20)) >> 21
+	s16 += carry[15]
+	s15 -= carry[15] << 21
+	carry[17] = (s17 + (1 << 20)) >> 21
+	s18 += carry[17]
+	s17 -= carry[17] << 21
+	carry[19] = (s19 + (1 << 20)) >> 21
+	s20 += carry[19]
+	s19 -= carry[19] << 21
+	carry[21] = (s21 + (1 << 20)) >> 21
+	s22 += carry[21]
+	s21 -= carry[21] << 21
+
+	s11 += s23 * 666643
+	s12 += s23 * 470296
+	s13 += s23 * 654183
+	s14 -= s23 * 997805
+	s15 += s23 * 136657
+	s16 -= s23 * 683901
+	s23 = 0
+
+	s10 += s22 * 666643
+	s11 += s22 * 470296
+	s12 += s22 * 654183
+	s13 -= s22 * 997805
+	s14 += s22 * 136657
+	s15 -= s22 * 683901
+	s22 = 0
+
+	s9 += s21 * 666643
+	s10 += s21 * 470296
+	s11 += s21 * 654183
+	s12 -= s21 * 997805
+	s13 += s21 * 136657
+	s14 -= s21 * 683901
+	s21 = 0
+
+	s8 += s20 * 666643
+	s9 += s20 * 470296
+	s10 += s20 * 654183
+	s11 -= s20 * 997805
+	s12 += s20 * 136657
+	s13 -= s20 * 683901
+	s20 = 0
+
+	s7 += s19 * 666643
+	s8 += s19 * 470296
+	s9 += s19 * 654183
+	s10 -= s19 * 997805
+	s11 += s19 * 136657
+	s12 -= s19 * 683901
+	s19 = 0
+
+	s6 += s18 * 666643
+	s7 += s18 * 470296
+	s8 += s18 * 654183
+	s9 -= s18 * 997805
+	s10 += s18 * 136657
+	s11 -= s18 * 683901
+	s18 = 0
+
+	carry[6] = (s6 + (1 << 20)) >> 21
+	s7 += carry[6]
+	s6 -= carry[6] << 21
+	carry[8] = (s8 + (1 << 20)) >> 21
+	s9 += carry[8]
+	s8 -= carry[8] << 21
+	carry[10] = (s10 + (1 << 20)) >> 21
+	s11 += carry[10]
+	s10 -= carry[10] << 21
+	carry[12] = (s12 + (1 << 20)) >> 21
+	s13 += carry[12]
+	s12 -= carry[12] << 21
+	carry[14] = (s14 + (1 << 20)) >> 21
+	s15 += carry[14]
+	s14 -= carry[14] << 21
+	carry[16] = (s16 + (1 << 20)) >> 21
+	s17 += carry[16]
+	s16 -= carry[16] << 21
+
+	carry[7] = (s7 + (1 << 20)) >> 21
+	s8 += carry[7]
+	s7 -= carry[7] << 21
+	carry[9] = (s9 + (1 << 20)) >> 21
+	s10 += carry[9]
+	s9 -= carry[9] << 21
+	carry[11] = (s11 + (1 << 20)) >> 21
+	s12 += carry[11]
+	s11 -= carry[11] << 21
+	carry[13] = (s13 + (1 << 20)) >> 21
+	s14 += carry[13]
+	s13 -= carry[13] << 21
+	carry[15] = (s15 + (1 << 20)) >> 21
+	s16 += carry[15]
+	s15 -= carry[15] << 21
+
+	s5 += s17 * 666643
+	s6 += s17 * 470296
+	s7 += s17 * 654183
+	s8 -= s17 * 997805
+	s9 += s17 * 136657
+	s10 -= s17 * 683901
+	s17 = 0
+
+	s4 += s16 * 666643
+	s5 += s16 * 470296
+	s6 += s16 * 654183
+	s7 -= s16 * 997805
+	s8 += s16 * 136657
+	s9 -= s16 * 683901
+	s16 = 0
+
+	s3 += s15 * 666643
+	s4 += s15 * 470296
+	s5 += s15 * 654183
+	s6 -= s15 * 997805
+	s7 += s15 * 136657
+	s8 -= s15 * 683901
+	s15 = 0
+
+	s2 += s14 * 666643
+	s3 += s14 * 470296
+	s4 += s14 * 654183
+	s5 -= s14 * 997805
+	s6 += s14 * 136657
+	s7 -= s14 * 683901
+	s14 = 0
+
+	s1 += s13 * 666643
+	s2 += s13 * 470296
+	s3 += s13 * 654183
+	s4 -= s13 * 997805
+	s5 += s13 * 136657
+	s6 -= s13 * 683901
+	s13 = 0
+
+	s0 += s12 * 666643
+	s1 += s12 * 470296
+	s2 += s12 * 654183
+	s3 -= s12 * 997805
+	s4 += s12 * 136657
+	s5 -= s12 * 683901
+	s12 = 0
+
+	carry[0] = (s0 + (1 << 20)) >> 21
+	s1 += carry[0]
+	s0 -= carry[0] << 21
+	carry[2] = (s2 + (1 << 20)) >> 21
+	s3 += carry[2]
+	s2 -= carry[2] << 21
+	carry[4] = (s4 + (1 << 20)) >> 21
+	s5 += carry[4]
+	s4 -= carry[4] << 21
+	carry[6] = (s6 + (1 << 20)) >> 21
+	s7 += carry[6]
+	s6 -= carry[6] << 21
+	carry[8] = (s8 + (1 << 20)) >> 21
+	s9 += carry[8]
+	s8 -= carry[8] << 21
+	carry[10] = (s10 + (1 << 20)) >> 21
+	s11 += carry[10]
+	s10 -= carry[10] << 21
+
+	carry[1] = (s1 + (1 << 20)) >> 21
+	s2 += carry[1]
+	s1 -= carry[1] << 21
+	carry[3] = (s3 + (1 << 20)) >> 21
+	s4 += carry[3]
+	s3 -= carry[3] << 21
+	carry[5] = (s5 + (1 << 20)) >> 21
+	s6 += carry[5]
+	s5 -= carry[5] << 21
+	carry[7] = (s7 + (1 << 20)) >> 21
+	s8 += carry[7]
+	s7 -= carry[7] << 21
+	carry[9] = (s9 + (1 << 20)) >> 21
+	s10 += carry[9]
+	s9 -= carry[9] << 21
+	carry[11] = (s11 + (1 << 20)) >> 21
+	s12 += carry[11]
+	s11 -= carry[11] << 21
+
+	s0 += s12 * 666643
+	s1 += s12 * 470296
+	s2 += s12 * 654183
+	s3 -= s12 * 997805
+	s4 += s12 * 136657
+	s5 -= s12 * 683901
+	s12 = 0
+
+	carry[0] = s0 >> 21
+	s1 += carry[0]
+	s0 -= carry[0] << 21
+	carry[1] = s1 >> 21
+	s2 += carry[1]
+	s1 -= carry[1] << 21
+	carry[2] = s2 >> 21
+	s3 += carry[2]
+	s2 -= carry[2] << 21
+	carry[3] = s3 >> 21
+	s4 += carry[3]
+	s3 -= carry[3] << 21
+	carry[4] = s4 >> 21
+	s5 += carry[4]
+	s4 -= carry[4] << 21
+	carry[5] = s5 >> 21
+	s6 += carry[5]
+	s5 -= carry[5] << 21
+	carry[6] = s6 >> 21
+	s7 += carry[6]
+	s6 -= carry[6] << 21
+	carry[7] = s7 >> 21
+	s8 += carry[7]
+	s7 -= carry[7] << 21
+	carry[8] = s8 >> 21
+	s9 += carry[8]
+	s8 -= carry[8] << 21
+	carry[9] = s9 >> 21
+	s10 += carry[9]
+	s9 -= carry[9] << 21
+	carry[10] = s10 >> 21
+	s11 += carry[10]
+	s10 -= carry[10] << 21
+	carry[11] = s11 >> 21
+	s12 += carry[11]
+	s11 -= carry[11] << 21
+
+	s0 += s12 * 666643
+	s1 += s12 * 470296
+	s2 += s12 * 654183
+	s3 -= s12 * 997805
+	s4 += s12 * 136657
+	s5 -= s12 * 683901
+	s12 = 0
+
+	carry[0] = s0 >> 21
+	s1 += carry[0]
+	s0 -= carry[0] << 21
+	carry[1] = s1 >> 21
+	s2 += carry[1]
+	s1 -= carry[1] << 21
+	carry[2] = s2 >> 21
+	s3 += carry[2]
+	s2 -= carry[2] << 21
+	carry[3] = s3 >> 21
+	s4 += carry[3]
+	s3 -= carry[3] << 21
+	carry[4] = s4 >> 21
+	s5 += carry[4]
+	s4 -= carry[4] << 21
+	carry[5] = s5 >> 21
+	s6 += carry[5]
+	s5 -= carry[5] << 21
+	carry[6] = s6 >> 21
+	s7 += carry[6]
+	s6 -= carry[6] << 21
+	carry[7] = s7 >> 21
+	s8 += carry[7]
+	s7 -= carry[7] << 21
+	carry[8] = s8 >> 21
+	s9 += carry[8]
+	s8 -= carry[8] << 21
+	carry[9] = s9 >> 21
+	s10 += carry[9]
+	s9 -= carry[9] << 21
+	carry[10] = s10 >> 21
+	s11 += carry[10]
+	s10 -= carry[10] << 21
+
+	s[0] = byte(s0 >> 0)
+	s[1] = byte(s0 >> 8)
+	s[2] = byte((s0 >> 16) | (s1 << 5))
+	s[3] = byte(s1 >> 3)
+	s[4] = byte(s1 >> 11)
+	s[5] = byte((s1 >> 19) | (s2 << 2))
+	s[6] = byte(s2 >> 6)
+	s[7] = byte((s2 >> 14) | (s3 << 7))
+	s[8] = byte(s3 >> 1)
+	s[9] = byte(s3 >> 9)
+	s[10] = byte((s3 >> 17) | (s4 << 4))
+	s[11] = byte(s4 >> 4)
+	s[12] = byte(s4 >> 12)
+	s[13] = byte((s4 >> 20) | (s5 << 1))
+	s[14] = byte(s5 >> 7)
+	s[15] = byte((s5 >> 15) | (s6 << 6))
+	s[16] = byte(s6 >> 2)
+	s[17] = byte(s6 >> 10)
+	s[18] = byte((s6 >> 18) | (s7 << 3))
+	s[19] = byte(s7 >> 5)
+	s[20] = byte(s7 >> 13)
+	s[21] = byte(s8 >> 0)
+	s[22] = byte(s8 >> 8)
+	s[23] = byte((s8 >> 16) | (s9 << 5))
+	s[24] = byte(s9 >> 3)
+	s[25] = byte(s9 >> 11)
+	s[26] = byte((s9 >> 19) | (s10 << 2))
+	s[27] = byte(s10 >> 6)
+	s[28] = byte((s10 >> 14) | (s11 << 7))
+	s[29] = byte(s11 >> 1)
+	s[30] = byte(s11 >> 9)
+	s[31] = byte(s11 >> 17)
+}
+
+// Input:
+//   s[0]+256*s[1]+...+256^63*s[63] = s
+//
+// Output:
+//   s[0]+256*s[1]+...+256^31*s[31] = s mod l
+//   where l = 2^252 + 27742317777372353535851937790883648493.
+func ScReduce(out *[32]byte, s *[64]byte) {
+	s0 := 2097151 & load3(s[:])
+	s1 := 2097151 & (load4(s[2:]) >> 5)
+	s2 := 2097151 & (load3(s[5:]) >> 2)
+	s3 := 2097151 & (load4(s[7:]) >> 7)
+	s4 := 2097151 & (load4(s[10:]) >> 4)
+	s5 := 2097151 & (load3(s[13:]) >> 1)
+	s6 := 2097151 & (load4(s[15:]) >> 6)
+	s7 := 2097151 & (load3(s[18:]) >> 3)
+	s8 := 2097151 & load3(s[21:])
+	s9 := 2097151 & (load4(s[23:]) >> 5)
+	s10 := 2097151 & (load3(s[26:]) >> 2)
+	s11 := 2097151 & (load4(s[28:]) >> 7)
+	s12 := 2097151 & (load4(s[31:]) >> 4)
+	s13 := 2097151 & (load3(s[34:]) >> 1)
+	s14 := 2097151 & (load4(s[36:]) >> 6)
+	s15 := 2097151 & (load3(s[39:]) >> 3)
+	s16 := 2097151 & load3(s[42:])
+	s17 := 2097151 & (load4(s[44:]) >> 5)
+	s18 := 2097151 & (load3(s[47:]) >> 2)
+	s19 := 2097151 & (load4(s[49:]) >> 7)
+	s20 := 2097151 & (load4(s[52:]) >> 4)
+	s21 := 2097151 & (load3(s[55:]) >> 1)
+	s22 := 2097151 & (load4(s[57:]) >> 6)
+	s23 := (load4(s[60:]) >> 3)
+
+	s11 += s23 * 666643
+	s12 += s23 * 470296
+	s13 += s23 * 654183
+	s14 -= s23 * 997805
+	s15 += s23 * 136657
+	s16 -= s23 * 683901
+	s23 = 0
+
+	s10 += s22 * 666643
+	s11 += s22 * 470296
+	s12 += s22 * 654183
+	s13 -= s22 * 997805
+	s14 += s22 * 136657
+	s15 -= s22 * 683901
+	s22 = 0
+
+	s9 += s21 * 666643
+	s10 += s21 * 470296
+	s11 += s21 * 654183
+	s12 -= s21 * 997805
+	s13 += s21 * 136657
+	s14 -= s21 * 683901
+	s21 = 0
+
+	s8 += s20 * 666643
+	s9 += s20 * 470296
+	s10 += s20 * 654183
+	s11 -= s20 * 997805
+	s12 += s20 * 136657
+	s13 -= s20 * 683901
+	s20 = 0
+
+	s7 += s19 * 666643
+	s8 += s19 * 470296
+	s9 += s19 * 654183
+	s10 -= s19 * 997805
+	s11 += s19 * 136657
+	s12 -= s19 * 683901
+	s19 = 0
+
+	s6 += s18 * 666643
+	s7 += s18 * 470296
+	s8 += s18 * 654183
+	s9 -= s18 * 997805
+	s10 += s18 * 136657
+	s11 -= s18 * 683901
+	s18 = 0
+
+	var carry [17]int64
+
+	carry[6] = (s6 + (1 << 20)) >> 21
+	s7 += carry[6]
+	s6 -= carry[6] << 21
+	carry[8] = (s8 + (1 << 20)) >> 21
+	s9 += carry[8]
+	s8 -= carry[8] << 21
+	carry[10] = (s10 + (1 << 20)) >> 21
+	s11 += carry[10]
+	s10 -= carry[10] << 21
+	carry[12] = (s12 + (1 << 20)) >> 21
+	s13 += carry[12]
+	s12 -= carry[12] << 21
+	carry[14] = (s14 + (1 << 20)) >> 21
+	s15 += carry[14]
+	s14 -= carry[14] << 21
+	carry[16] = (s16 + (1 << 20)) >> 21
+	s17 += carry[16]
+	s16 -= carry[16] << 21
+
+	carry[7] = (s7 + (1 << 20)) >> 21
+	s8 += carry[7]
+	s7 -= carry[7] << 21
+	carry[9] = (s9 + (1 << 20)) >> 21
+	s10 += carry[9]
+	s9 -= carry[9] << 21
+	carry[11] = (s11 + (1 << 20)) >> 21
+	s12 += carry[11]
+	s11 -= carry[11] << 21
+	carry[13] = (s13 + (1 << 20)) >> 21
+	s14 += carry[13]
+	s13 -= carry[13] << 21
+	carry[15] = (s15 + (1 << 20)) >> 21
+	s16 += carry[15]
+	s15 -= carry[15] << 21
+
+	s5 += s17 * 666643
+	s6 += s17 * 470296
+	s7 += s17 * 654183
+	s8 -= s17 * 997805
+	s9 += s17 * 136657
+	s10 -= s17 * 683901
+	s17 = 0
+
+	s4 += s16 * 666643
+	s5 += s16 * 470296
+	s6 += s16 * 654183
+	s7 -= s16 * 997805
+	s8 += s16 * 136657
+	s9 -= s16 * 683901
+	s16 = 0
+
+	s3 += s15 * 666643
+	s4 += s15 * 470296
+	s5 += s15 * 654183
+	s6 -= s15 * 997805
+	s7 += s15 * 136657
+	s8 -= s15 * 683901
+	s15 = 0
+
+	s2 += s14 * 666643
+	s3 += s14 * 470296
+	s4 += s14 * 654183
+	s5 -= s14 * 997805
+	s6 += s14 * 136657
+	s7 -= s14 * 683901
+	s14 = 0
+
+	s1 += s13 * 666643
+	s2 += s13 * 470296
+	s3 += s13 * 654183
+	s4 -= s13 * 997805
+	s5 += s13 * 136657
+	s6 -= s13 * 683901
+	s13 = 0
+
+	s0 += s12 * 666643
+	s1 += s12 * 470296
+	s2 += s12 * 654183
+	s3 -= s12 * 997805
+	s4 += s12 * 136657
+	s5 -= s12 * 683901
+	s12 = 0
+
+	carry[0] = (s0 + (1 << 20)) >> 21
+	s1 += carry[0]
+	s0 -= carry[0] << 21
+	carry[2] = (s2 + (1 << 20)) >> 21
+	s3 += carry[2]
+	s2 -= carry[2] << 21
+	carry[4] = (s4 + (1 << 20)) >> 21
+	s5 += carry[4]
+	s4 -= carry[4] << 21
+	carry[6] = (s6 + (1 << 20)) >> 21
+	s7 += carry[6]
+	s6 -= carry[6] << 21
+	carry[8] = (s8 + (1 << 20)) >> 21
+	s9 += carry[8]
+	s8 -= carry[8] << 21
+	carry[10] = (s10 + (1 << 20)) >> 21
+	s11 += carry[10]
+	s10 -= carry[10] << 21
+
+	carry[1] = (s1 + (1 << 20)) >> 21
+	s2 += carry[1]
+	s1 -= carry[1] << 21
+	carry[3] = (s3 + (1 << 20)) >> 21
+	s4 += carry[3]
+	s3 -= carry[3] << 21
+	carry[5] = (s5 + (1 << 20)) >> 21
+	s6 += carry[5]
+	s5 -= carry[5] << 21
+	carry[7] = (s7 + (1 << 20)) >> 21
+	s8 += carry[7]
+	s7 -= carry[7] << 21
+	carry[9] = (s9 + (1 << 20)) >> 21
+	s10 += carry[9]
+	s9 -= carry[9] << 21
+	carry[11] = (s11 + (1 << 20)) >> 21
+	s12 += carry[11]
+	s11 -= carry[11] << 21
+
+	s0 += s12 * 666643
+	s1 += s12 * 470296
+	s2 += s12 * 654183
+	s3 -= s12 * 997805
+	s4 += s12 * 136657
+	s5 -= s12 * 683901
+	s12 = 0
+
+	carry[0] = s0 >> 21
+	s1 += carry[0]
+	s0 -= carry[0] << 21
+	carry[1] = s1 >> 21
+	s2 += carry[1]
+	s1 -= carry[1] << 21
+	carry[2] = s2 >> 21
+	s3 += carry[2]
+	s2 -= carry[2] << 21
+	carry[3] = s3 >> 21
+	s4 += carry[3]
+	s3 -= carry[3] << 21
+	carry[4] = s4 >> 21
+	s5 += carry[4]
+	s4 -= carry[4] << 21
+	carry[5] = s5 >> 21
+	s6 += carry[5]
+	s5 -= carry[5] << 21
+	carry[6] = s6 >> 21
+	s7 += carry[6]
+	s6 -= carry[6] << 21
+	carry[7] = s7 >> 21
+	s8 += carry[7]
+	s7 -= carry[7] << 21
+	carry[8] = s8 >> 21
+	s9 += carry[8]
+	s8 -= carry[8] << 21
+	carry[9] = s9 >> 21
+	s10 += carry[9]
+	s9 -= carry[9] << 21
+	carry[10] = s10 >> 21
+	s11 += carry[10]
+	s10 -= carry[10] << 21
+	carry[11] = s11 >> 21
+	s12 += carry[11]
+	s11 -= carry[11] << 21
+
+	s0 += s12 * 666643
+	s1 += s12 * 470296
+	s2 += s12 * 654183
+	s3 -= s12 * 997805
+	s4 += s12 * 136657
+	s5 -= s12 * 683901
+	s12 = 0
+
+	carry[0] = s0 >> 21
+	s1 += carry[0]
+	s0 -= carry[0] << 21
+	carry[1] = s1 >> 21
+	s2 += carry[1]
+	s1 -= carry[1] << 21
+	carry[2] = s2 >> 21
+	s3 += carry[2]
+	s2 -= carry[2] << 21
+	carry[3] = s3 >> 21
+	s4 += carry[3]
+	s3 -= carry[3] << 21
+	carry[4] = s4 >> 21
+	s5 += carry[4]
+	s4 -= carry[4] << 21
+	carry[5] = s5 >> 21
+	s6 += carry[5]
+	s5 -= carry[5] << 21
+	carry[6] = s6 >> 21
+	s7 += carry[6]
+	s6 -= carry[6] << 21
+	carry[7] = s7 >> 21
+	s8 += carry[7]
+	s7 -= carry[7] << 21
+	carry[8] = s8 >> 21
+	s9 += carry[8]
+	s8 -= carry[8] << 21
+	carry[9] = s9 >> 21
+	s10 += carry[9]
+	s9 -= carry[9] << 21
+	carry[10] = s10 >> 21
+	s11 += carry[10]
+	s10 -= carry[10] << 21
+
+	out[0] = byte(s0 >> 0)
+	out[1] = byte(s0 >> 8)
+	out[2] = byte((s0 >> 16) | (s1 << 5))
+	out[3] = byte(s1 >> 3)
+	out[4] = byte(s1 >> 11)
+	out[5] = byte((s1 >> 19) | (s2 << 2))
+	out[6] = byte(s2 >> 6)
+	out[7] = byte((s2 >> 14) | (s3 << 7))
+	out[8] = byte(s3 >> 1)
+	out[9] = byte(s3 >> 9)
+	out[10] = byte((s3 >> 17) | (s4 << 4))
+	out[11] = byte(s4 >> 4)
+	out[12] = byte(s4 >> 12)
+	out[13] = byte((s4 >> 20) | (s5 << 1))
+	out[14] = byte(s5 >> 7)
+	out[15] = byte((s5 >> 15) | (s6 << 6))
+	out[16] = byte(s6 >> 2)
+	out[17] = byte(s6 >> 10)
+	out[18] = byte((s6 >> 18) | (s7 << 3))
+	out[19] = byte(s7 >> 5)
+	out[20] = byte(s7 >> 13)
+	out[21] = byte(s8 >> 0)
+	out[22] = byte(s8 >> 8)
+	out[23] = byte((s8 >> 16) | (s9 << 5))
+	out[24] = byte(s9 >> 3)
+	out[25] = byte(s9 >> 11)
+	out[26] = byte((s9 >> 19) | (s10 << 2))
+	out[27] = byte(s10 >> 6)
+	out[28] = byte((s10 >> 14) | (s11 << 7))
+	out[29] = byte(s11 >> 1)
+	out[30] = byte(s11 >> 9)
+	out[31] = byte(s11 >> 17)
+}
+
+// order is the order of Curve25519 in little-endian form.
+var order = [4]uint64{0x5812631a5cf5d3ed, 0x14def9dea2f79cd6, 0, 0x1000000000000000}
+
+// ScMinimal returns true if the given scalar is less than the order of the
+// curve.
+func ScMinimal(scalar *[32]byte) bool {
+	for i := 3; ; i-- {
+		v := binary.LittleEndian.Uint64(scalar[i*8:])
+		if v > order[i] {
+			return false
+		} else if v < order[i] {
+			break
+		} else if i == 0 {
+			return false
+		}
+	}
+
+	return true
+}
diff --git a/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_arm64.go b/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_arm64.go
deleted file mode 100644
index ad74e23..0000000
--- a/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_arm64.go
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.11
-// +build !gccgo
-
-package chacha20
-
-const (
-	haveAsm = true
-	bufSize = 256
-)
-
-//go:noescape
-func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32)
-
-func (c *Cipher) xorKeyStreamAsm(dst, src []byte) {
-
-	if len(src) >= bufSize {
-		xorKeyStreamVX(dst, src, &c.key, &c.nonce, &c.counter)
-	}
-
-	if len(src)%bufSize != 0 {
-		i := len(src) - len(src)%bufSize
-		c.buf = [bufSize]byte{}
-		copy(c.buf[:], src[i:])
-		xorKeyStreamVX(c.buf[:], c.buf[:], &c.key, &c.nonce, &c.counter)
-		c.len = bufSize - copy(dst[i:], c.buf[:len(src)%bufSize])
-	}
-}
diff --git a/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_generic.go b/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_generic.go
deleted file mode 100644
index 6570847..0000000
--- a/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_generic.go
+++ /dev/null
@@ -1,264 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package ChaCha20 implements the core ChaCha20 function as specified
-// in https://tools.ietf.org/html/rfc7539#section-2.3.
-package chacha20
-
-import (
-	"crypto/cipher"
-	"encoding/binary"
-
-	"golang.org/x/crypto/internal/subtle"
-)
-
-// assert that *Cipher implements cipher.Stream
-var _ cipher.Stream = (*Cipher)(nil)
-
-// Cipher is a stateful instance of ChaCha20 using a particular key
-// and nonce. A *Cipher implements the cipher.Stream interface.
-type Cipher struct {
-	key     [8]uint32
-	counter uint32 // incremented after each block
-	nonce   [3]uint32
-	buf     [bufSize]byte // buffer for unused keystream bytes
-	len     int           // number of unused keystream bytes at end of buf
-}
-
-// New creates a new ChaCha20 stream cipher with the given key and nonce.
-// The initial counter value is set to 0.
-func New(key [8]uint32, nonce [3]uint32) *Cipher {
-	return &Cipher{key: key, nonce: nonce}
-}
-
-// ChaCha20 constants spelling "expand 32-byte k"
-const (
-	j0 uint32 = 0x61707865
-	j1 uint32 = 0x3320646e
-	j2 uint32 = 0x79622d32
-	j3 uint32 = 0x6b206574
-)
-
-func quarterRound(a, b, c, d uint32) (uint32, uint32, uint32, uint32) {
-	a += b
-	d ^= a
-	d = (d << 16) | (d >> 16)
-	c += d
-	b ^= c
-	b = (b << 12) | (b >> 20)
-	a += b
-	d ^= a
-	d = (d << 8) | (d >> 24)
-	c += d
-	b ^= c
-	b = (b << 7) | (b >> 25)
-	return a, b, c, d
-}
-
-// XORKeyStream XORs each byte in the given slice with a byte from the
-// cipher's key stream. Dst and src must overlap entirely or not at all.
-//
-// If len(dst) < len(src), XORKeyStream will panic. It is acceptable
-// to pass a dst bigger than src, and in that case, XORKeyStream will
-// only update dst[:len(src)] and will not touch the rest of dst.
-//
-// Multiple calls to XORKeyStream behave as if the concatenation of
-// the src buffers was passed in a single run. That is, Cipher
-// maintains state and does not reset at each XORKeyStream call.
-func (s *Cipher) XORKeyStream(dst, src []byte) {
-	if len(dst) < len(src) {
-		panic("chacha20: output smaller than input")
-	}
-	if subtle.InexactOverlap(dst[:len(src)], src) {
-		panic("chacha20: invalid buffer overlap")
-	}
-
-	// xor src with buffered keystream first
-	if s.len != 0 {
-		buf := s.buf[len(s.buf)-s.len:]
-		if len(src) < len(buf) {
-			buf = buf[:len(src)]
-		}
-		td, ts := dst[:len(buf)], src[:len(buf)] // BCE hint
-		for i, b := range buf {
-			td[i] = ts[i] ^ b
-		}
-		s.len -= len(buf)
-		if s.len != 0 {
-			return
-		}
-		s.buf = [len(s.buf)]byte{} // zero the empty buffer
-		src = src[len(buf):]
-		dst = dst[len(buf):]
-	}
-
-	if len(src) == 0 {
-		return
-	}
-	if haveAsm {
-		if uint64(len(src))+uint64(s.counter)*64 > (1<<38)-64 {
-			panic("chacha20: counter overflow")
-		}
-		s.xorKeyStreamAsm(dst, src)
-		return
-	}
-
-	// set up a 64-byte buffer to pad out the final block if needed
-	// (hoisted out of the main loop to avoid spills)
-	rem := len(src) % 64  // length of final block
-	fin := len(src) - rem // index of final block
-	if rem > 0 {
-		copy(s.buf[len(s.buf)-64:], src[fin:])
-	}
-
-	// pre-calculate most of the first round
-	s1, s5, s9, s13 := quarterRound(j1, s.key[1], s.key[5], s.nonce[0])
-	s2, s6, s10, s14 := quarterRound(j2, s.key[2], s.key[6], s.nonce[1])
-	s3, s7, s11, s15 := quarterRound(j3, s.key[3], s.key[7], s.nonce[2])
-
-	n := len(src)
-	src, dst = src[:n:n], dst[:n:n] // BCE hint
-	for i := 0; i < n; i += 64 {
-		// calculate the remainder of the first round
-		s0, s4, s8, s12 := quarterRound(j0, s.key[0], s.key[4], s.counter)
-
-		// execute the second round
-		x0, x5, x10, x15 := quarterRound(s0, s5, s10, s15)
-		x1, x6, x11, x12 := quarterRound(s1, s6, s11, s12)
-		x2, x7, x8, x13 := quarterRound(s2, s7, s8, s13)
-		x3, x4, x9, x14 := quarterRound(s3, s4, s9, s14)
-
-		// execute the remaining 18 rounds
-		for i := 0; i < 9; i++ {
-			x0, x4, x8, x12 = quarterRound(x0, x4, x8, x12)
-			x1, x5, x9, x13 = quarterRound(x1, x5, x9, x13)
-			x2, x6, x10, x14 = quarterRound(x2, x6, x10, x14)
-			x3, x7, x11, x15 = quarterRound(x3, x7, x11, x15)
-
-			x0, x5, x10, x15 = quarterRound(x0, x5, x10, x15)
-			x1, x6, x11, x12 = quarterRound(x1, x6, x11, x12)
-			x2, x7, x8, x13 = quarterRound(x2, x7, x8, x13)
-			x3, x4, x9, x14 = quarterRound(x3, x4, x9, x14)
-		}
-
-		x0 += j0
-		x1 += j1
-		x2 += j2
-		x3 += j3
-
-		x4 += s.key[0]
-		x5 += s.key[1]
-		x6 += s.key[2]
-		x7 += s.key[3]
-		x8 += s.key[4]
-		x9 += s.key[5]
-		x10 += s.key[6]
-		x11 += s.key[7]
-
-		x12 += s.counter
-		x13 += s.nonce[0]
-		x14 += s.nonce[1]
-		x15 += s.nonce[2]
-
-		// increment the counter
-		s.counter += 1
-		if s.counter == 0 {
-			panic("chacha20: counter overflow")
-		}
-
-		// pad to 64 bytes if needed
-		in, out := src[i:], dst[i:]
-		if i == fin {
-			// src[fin:] has already been copied into s.buf before
-			// the main loop
-			in, out = s.buf[len(s.buf)-64:], s.buf[len(s.buf)-64:]
-		}
-		in, out = in[:64], out[:64] // BCE hint
-
-		// XOR the key stream with the source and write out the result
-		xor(out[0:], in[0:], x0)
-		xor(out[4:], in[4:], x1)
-		xor(out[8:], in[8:], x2)
-		xor(out[12:], in[12:], x3)
-		xor(out[16:], in[16:], x4)
-		xor(out[20:], in[20:], x5)
-		xor(out[24:], in[24:], x6)
-		xor(out[28:], in[28:], x7)
-		xor(out[32:], in[32:], x8)
-		xor(out[36:], in[36:], x9)
-		xor(out[40:], in[40:], x10)
-		xor(out[44:], in[44:], x11)
-		xor(out[48:], in[48:], x12)
-		xor(out[52:], in[52:], x13)
-		xor(out[56:], in[56:], x14)
-		xor(out[60:], in[60:], x15)
-	}
-	// copy any trailing bytes out of the buffer and into dst
-	if rem != 0 {
-		s.len = 64 - rem
-		copy(dst[fin:], s.buf[len(s.buf)-64:])
-	}
-}
-
-// Advance discards bytes in the key stream until the next 64 byte block
-// boundary is reached and updates the counter accordingly. If the key
-// stream is already at a block boundary no bytes will be discarded and
-// the counter will be unchanged.
-func (s *Cipher) Advance() {
-	s.len -= s.len % 64
-	if s.len == 0 {
-		s.buf = [len(s.buf)]byte{}
-	}
-}
-
-// XORKeyStream crypts bytes from in to out using the given key and counters.
-// In and out must overlap entirely or not at all. Counter contains the raw
-// ChaCha20 counter bytes (i.e. block counter followed by nonce).
-func XORKeyStream(out, in []byte, counter *[16]byte, key *[32]byte) {
-	s := Cipher{
-		key: [8]uint32{
-			binary.LittleEndian.Uint32(key[0:4]),
-			binary.LittleEndian.Uint32(key[4:8]),
-			binary.LittleEndian.Uint32(key[8:12]),
-			binary.LittleEndian.Uint32(key[12:16]),
-			binary.LittleEndian.Uint32(key[16:20]),
-			binary.LittleEndian.Uint32(key[20:24]),
-			binary.LittleEndian.Uint32(key[24:28]),
-			binary.LittleEndian.Uint32(key[28:32]),
-		},
-		nonce: [3]uint32{
-			binary.LittleEndian.Uint32(counter[4:8]),
-			binary.LittleEndian.Uint32(counter[8:12]),
-			binary.LittleEndian.Uint32(counter[12:16]),
-		},
-		counter: binary.LittleEndian.Uint32(counter[0:4]),
-	}
-	s.XORKeyStream(out, in)
-}
-
-// HChaCha20 uses the ChaCha20 core to generate a derived key from a key and a
-// nonce. It should only be used as part of the XChaCha20 construction.
-func HChaCha20(key *[8]uint32, nonce *[4]uint32) [8]uint32 {
-	x0, x1, x2, x3 := j0, j1, j2, j3
-	x4, x5, x6, x7 := key[0], key[1], key[2], key[3]
-	x8, x9, x10, x11 := key[4], key[5], key[6], key[7]
-	x12, x13, x14, x15 := nonce[0], nonce[1], nonce[2], nonce[3]
-
-	for i := 0; i < 10; i++ {
-		x0, x4, x8, x12 = quarterRound(x0, x4, x8, x12)
-		x1, x5, x9, x13 = quarterRound(x1, x5, x9, x13)
-		x2, x6, x10, x14 = quarterRound(x2, x6, x10, x14)
-		x3, x7, x11, x15 = quarterRound(x3, x7, x11, x15)
-
-		x0, x5, x10, x15 = quarterRound(x0, x5, x10, x15)
-		x1, x6, x11, x12 = quarterRound(x1, x6, x11, x12)
-		x2, x7, x8, x13 = quarterRound(x2, x7, x8, x13)
-		x3, x4, x9, x14 = quarterRound(x3, x4, x9, x14)
-	}
-
-	var out [8]uint32
-	out[0], out[1], out[2], out[3] = x0, x1, x2, x3
-	out[4], out[5], out[6], out[7] = x12, x13, x14, x15
-	return out
-}
diff --git a/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_noasm.go b/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_noasm.go
deleted file mode 100644
index bf8beba..0000000
--- a/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_noasm.go
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !ppc64le,!arm64,!s390x arm64,!go1.11 gccgo appengine
-
-package chacha20
-
-const (
-	bufSize = 64
-	haveAsm = false
-)
-
-func (*Cipher) xorKeyStreamAsm(dst, src []byte) {
-	panic("not implemented")
-}
diff --git a/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_ppc64le.go b/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_ppc64le.go
deleted file mode 100644
index 638cb5e..0000000
--- a/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_ppc64le.go
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ppc64le,!gccgo,!appengine
-
-package chacha20
-
-import "encoding/binary"
-
-const (
-	bufSize = 256
-	haveAsm = true
-)
-
-//go:noescape
-func chaCha20_ctr32_vmx(out, inp *byte, len int, key *[8]uint32, counter *uint32)
-
-func (c *Cipher) xorKeyStreamAsm(dst, src []byte) {
-	if len(src) >= bufSize {
-		chaCha20_ctr32_vmx(&dst[0], &src[0], len(src)-len(src)%bufSize, &c.key, &c.counter)
-	}
-	if len(src)%bufSize != 0 {
-		chaCha20_ctr32_vmx(&c.buf[0], &c.buf[0], bufSize, &c.key, &c.counter)
-		start := len(src) - len(src)%bufSize
-		ts, td, tb := src[start:], dst[start:], c.buf[:]
-		// Unroll loop to XOR 32 bytes per iteration.
-		for i := 0; i < len(ts)-32; i += 32 {
-			td, tb = td[:len(ts)], tb[:len(ts)] // bounds check elimination
-			s0 := binary.LittleEndian.Uint64(ts[0:8])
-			s1 := binary.LittleEndian.Uint64(ts[8:16])
-			s2 := binary.LittleEndian.Uint64(ts[16:24])
-			s3 := binary.LittleEndian.Uint64(ts[24:32])
-			b0 := binary.LittleEndian.Uint64(tb[0:8])
-			b1 := binary.LittleEndian.Uint64(tb[8:16])
-			b2 := binary.LittleEndian.Uint64(tb[16:24])
-			b3 := binary.LittleEndian.Uint64(tb[24:32])
-			binary.LittleEndian.PutUint64(td[0:8], s0^b0)
-			binary.LittleEndian.PutUint64(td[8:16], s1^b1)
-			binary.LittleEndian.PutUint64(td[16:24], s2^b2)
-			binary.LittleEndian.PutUint64(td[24:32], s3^b3)
-			ts, td, tb = ts[32:], td[32:], tb[32:]
-		}
-		td, tb = td[:len(ts)], tb[:len(ts)] // bounds check elimination
-		for i, v := range ts {
-			td[i] = tb[i] ^ v
-		}
-		c.len = bufSize - (len(src) % bufSize)
-
-	}
-
-}
diff --git a/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_s390x.go b/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_s390x.go
deleted file mode 100644
index aad645b..0000000
--- a/libgo/go/golang.org/x/crypto/internal/chacha20/chacha_s390x.go
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build s390x,!gccgo,!appengine
-
-package chacha20
-
-import (
-	"golang.org/x/sys/cpu"
-)
-
-var haveAsm = cpu.S390X.HasVX
-
-const bufSize = 256
-
-// xorKeyStreamVX is an assembly implementation of XORKeyStream. It must only
-// be called when the vector facility is available.
-// Implementation in asm_s390x.s.
-//go:noescape
-func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32, buf *[256]byte, len *int)
-
-func (c *Cipher) xorKeyStreamAsm(dst, src []byte) {
-	xorKeyStreamVX(dst, src, &c.key, &c.nonce, &c.counter, &c.buf, &c.len)
-}
-
-// EXRL targets, DO NOT CALL!
-func mvcSrcToBuf()
-func mvcBufToDst()
diff --git a/libgo/go/golang.org/x/crypto/poly1305/bits_compat.go b/libgo/go/golang.org/x/crypto/poly1305/bits_compat.go
new file mode 100644
index 0000000..157a69f
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/poly1305/bits_compat.go
@@ -0,0 +1,39 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !go1.13
+
+package poly1305
+
+// Generic fallbacks for the math/bits intrinsics, copied from
+// src/math/bits/bits.go. They were added in Go 1.12, but Add64 and Sum64 had
+// variable time fallbacks until Go 1.13.
+
+func bitsAdd64(x, y, carry uint64) (sum, carryOut uint64) {
+	sum = x + y + carry
+	carryOut = ((x & y) | ((x | y) &^ sum)) >> 63
+	return
+}
+
+func bitsSub64(x, y, borrow uint64) (diff, borrowOut uint64) {
+	diff = x - y - borrow
+	borrowOut = ((^x & y) | (^(x ^ y) & diff)) >> 63
+	return
+}
+
+func bitsMul64(x, y uint64) (hi, lo uint64) {
+	const mask32 = 1<<32 - 1
+	x0 := x & mask32
+	x1 := x >> 32
+	y0 := y & mask32
+	y1 := y >> 32
+	w0 := x0 * y0
+	t := x1*y0 + w0>>32
+	w1 := t & mask32
+	w2 := t >> 32
+	w1 += x0 * y1
+	hi = x1*y1 + w2 + w1>>32
+	lo = x * y
+	return
+}
diff --git a/libgo/go/golang.org/x/crypto/poly1305/bits_go1.13.go b/libgo/go/golang.org/x/crypto/poly1305/bits_go1.13.go
new file mode 100644
index 0000000..a0a185f
--- /dev/null
+++ b/libgo/go/golang.org/x/crypto/poly1305/bits_go1.13.go
@@ -0,0 +1,21 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build go1.13
+
+package poly1305
+
+import "math/bits"
+
+func bitsAdd64(x, y, carry uint64) (sum, carryOut uint64) {
+	return bits.Add64(x, y, carry)
+}
+
+func bitsSub64(x, y, borrow uint64) (diff, borrowOut uint64) {
+	return bits.Sub64(x, y, borrow)
+}
+
+func bitsMul64(x, y uint64) (hi, lo uint64) {
+	return bits.Mul64(x, y)
+}
diff --git a/libgo/go/golang.org/x/crypto/poly1305/poly1305.go b/libgo/go/golang.org/x/crypto/poly1305/poly1305.go
index d076a56..066159b 100644
--- a/libgo/go/golang.org/x/crypto/poly1305/poly1305.go
+++ b/libgo/go/golang.org/x/crypto/poly1305/poly1305.go
@@ -22,8 +22,14 @@
 // TagSize is the size, in bytes, of a poly1305 authenticator.
 const TagSize = 16
 
-// Verify returns true if mac is a valid authenticator for m with the given
-// key.
+// Sum generates an authenticator for msg using a one-time key and puts the
+// 16-byte result into out. Authenticating two different messages with the same
+// key allows an attacker to forge messages at will.
+func Sum(out *[16]byte, m []byte, key *[32]byte) {
+	sum(out, m, key)
+}
+
+// Verify returns true if mac is a valid authenticator for m with the given key.
 func Verify(mac *[16]byte, m []byte, key *[32]byte) bool {
 	var tmp [16]byte
 	Sum(&tmp, m, key)
diff --git a/libgo/go/golang.org/x/crypto/poly1305/sum_amd64.go b/libgo/go/golang.org/x/crypto/poly1305/sum_amd64.go
index 2dbf42a..df56a65 100644
--- a/libgo/go/golang.org/x/crypto/poly1305/sum_amd64.go
+++ b/libgo/go/golang.org/x/crypto/poly1305/sum_amd64.go
@@ -7,62 +7,52 @@
 package poly1305
 
 //go:noescape
-func initialize(state *[7]uint64, key *[32]byte)
+func update(state *macState, msg []byte)
 
-//go:noescape
-func update(state *[7]uint64, msg []byte)
-
-//go:noescape
-func finalize(tag *[TagSize]byte, state *[7]uint64)
-
-// Sum generates an authenticator for m using a one-time key and puts the
-// 16-byte result into out. Authenticating two different messages with the same
-// key allows an attacker to forge messages at will.
-func Sum(out *[16]byte, m []byte, key *[32]byte) {
+func sum(out *[16]byte, m []byte, key *[32]byte) {
 	h := newMAC(key)
 	h.Write(m)
 	h.Sum(out)
 }
 
 func newMAC(key *[32]byte) (h mac) {
-	initialize(&h.state, key)
+	initialize(key, &h.r, &h.s)
 	return
 }
 
-type mac struct {
-	state [7]uint64 // := uint64{ h0, h1, h2, r0, r1, pad0, pad1 }
+// mac is a wrapper for macGeneric that redirects calls that would have gone to
+// updateGeneric to update.
+//
+// Its Write and Sum methods are otherwise identical to the macGeneric ones, but
+// using function pointers would carry a major performance cost.
+type mac struct{ macGeneric }
 
-	buffer [TagSize]byte
-	offset int
-}
-
-func (h *mac) Write(p []byte) (n int, err error) {
-	n = len(p)
+func (h *mac) Write(p []byte) (int, error) {
+	nn := len(p)
 	if h.offset > 0 {
-		remaining := TagSize - h.offset
-		if n < remaining {
-			h.offset += copy(h.buffer[h.offset:], p)
-			return n, nil
+		n := copy(h.buffer[h.offset:], p)
+		if h.offset+n < TagSize {
+			h.offset += n
+			return nn, nil
 		}
-		copy(h.buffer[h.offset:], p[:remaining])
-		p = p[remaining:]
+		p = p[n:]
 		h.offset = 0
-		update(&h.state, h.buffer[:])
+		update(&h.macState, h.buffer[:])
 	}
-	if nn := len(p) - (len(p) % TagSize); nn > 0 {
-		update(&h.state, p[:nn])
-		p = p[nn:]
+	if n := len(p) - (len(p) % TagSize); n > 0 {
+		update(&h.macState, p[:n])
+		p = p[n:]
 	}
 	if len(p) > 0 {
 		h.offset += copy(h.buffer[h.offset:], p)
 	}
-	return n, nil
+	return nn, nil
 }
 
 func (h *mac) Sum(out *[16]byte) {
-	state := h.state
+	state := h.macState
 	if h.offset > 0 {
 		update(&state, h.buffer[:h.offset])
 	}
-	finalize(out, &state)
+	finalize(out, &state.h, &state.s)
 }
diff --git a/libgo/go/golang.org/x/crypto/poly1305/sum_arm.go b/libgo/go/golang.org/x/crypto/poly1305/sum_arm.go
index 5dc321c..6e695e4 100644
--- a/libgo/go/golang.org/x/crypto/poly1305/sum_arm.go
+++ b/libgo/go/golang.org/x/crypto/poly1305/sum_arm.go
@@ -6,14 +6,11 @@
 
 package poly1305
 
-// This function is implemented in sum_arm.s
+// poly1305_auth_armv6 is implemented in sum_arm.s
 //go:noescape
 func poly1305_auth_armv6(out *[16]byte, m *byte, mlen uint32, key *[32]byte)
 
-// Sum generates an authenticator for m using a one-time key and puts the
-// 16-byte result into out. Authenticating two different messages with the same
-// key allows an attacker to forge messages at will.
-func Sum(out *[16]byte, m []byte, key *[32]byte) {
+func sum(out *[16]byte, m []byte, key *[32]byte) {
 	var mPtr *byte
 	if len(m) > 0 {
 		mPtr = &m[0]
diff --git a/libgo/go/golang.org/x/crypto/poly1305/sum_generic.go b/libgo/go/golang.org/x/crypto/poly1305/sum_generic.go
index bab76ef..1187eab 100644
--- a/libgo/go/golang.org/x/crypto/poly1305/sum_generic.go
+++ b/libgo/go/golang.org/x/crypto/poly1305/sum_generic.go
@@ -2,18 +2,29 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// This file provides the generic implementation of Sum and MAC. Other files
+// might provide optimized assembly implementations of some of this code.
+
 package poly1305
 
 import "encoding/binary"
 
-const (
-	msgBlock   = uint32(1 << 24)
-	finalBlock = uint32(0)
-)
+// Poly1305 [RFC 7539] is a relatively simple algorithm: the authentication tag
+// for a 64 bytes message is approximately
+//
+//     s + m[0:16] * r⁴ + m[16:32] * r³ + m[32:48] * r² + m[48:64] * r  mod  2¹³⁰ - 5
+//
+// for some secret r and s. It can be computed sequentially like
+//
+//     for len(msg) > 0:
+//         h += read(msg, 16)
+//         h *= r
+//         h %= 2¹³⁰ - 5
+//     return h + s
+//
+// All the complexity is about doing performant constant-time math on numbers
+// larger than any available numeric type.
 
-// sumGeneric generates an authenticator for msg using a one-time key and
-// puts the 16-byte result into out. This is the generic implementation of
-// Sum and should be called if no assembly implementation is available.
 func sumGeneric(out *[TagSize]byte, msg []byte, key *[32]byte) {
 	h := newMACGeneric(key)
 	h.Write(msg)
@@ -21,152 +32,276 @@
 }
 
 func newMACGeneric(key *[32]byte) (h macGeneric) {
-	h.r[0] = binary.LittleEndian.Uint32(key[0:]) & 0x3ffffff
-	h.r[1] = (binary.LittleEndian.Uint32(key[3:]) >> 2) & 0x3ffff03
-	h.r[2] = (binary.LittleEndian.Uint32(key[6:]) >> 4) & 0x3ffc0ff
-	h.r[3] = (binary.LittleEndian.Uint32(key[9:]) >> 6) & 0x3f03fff
-	h.r[4] = (binary.LittleEndian.Uint32(key[12:]) >> 8) & 0x00fffff
-
-	h.s[0] = binary.LittleEndian.Uint32(key[16:])
-	h.s[1] = binary.LittleEndian.Uint32(key[20:])
-	h.s[2] = binary.LittleEndian.Uint32(key[24:])
-	h.s[3] = binary.LittleEndian.Uint32(key[28:])
+	initialize(key, &h.r, &h.s)
 	return
 }
 
+// macState holds numbers in saturated 64-bit little-endian limbs. That is,
+// the value of [x0, x1, x2] is x[0] + x[1] * 2⁶⁴ + x[2] * 2¹²⁸.
+type macState struct {
+	// h is the main accumulator. It is to be interpreted modulo 2¹³⁰ - 5, but
+	// can grow larger during and after rounds.
+	h [3]uint64
+	// r and s are the private key components.
+	r [2]uint64
+	s [2]uint64
+}
+
 type macGeneric struct {
-	h, r [5]uint32
-	s    [4]uint32
+	macState
 
 	buffer [TagSize]byte
 	offset int
 }
 
-func (h *macGeneric) Write(p []byte) (n int, err error) {
-	n = len(p)
+// Write splits the incoming message into TagSize chunks, and passes them to
+// update. It buffers incomplete chunks.
+func (h *macGeneric) Write(p []byte) (int, error) {
+	nn := len(p)
 	if h.offset > 0 {
-		remaining := TagSize - h.offset
-		if n < remaining {
-			h.offset += copy(h.buffer[h.offset:], p)
-			return n, nil
+		n := copy(h.buffer[h.offset:], p)
+		if h.offset+n < TagSize {
+			h.offset += n
+			return nn, nil
 		}
-		copy(h.buffer[h.offset:], p[:remaining])
-		p = p[remaining:]
+		p = p[n:]
 		h.offset = 0
-		updateGeneric(h.buffer[:], msgBlock, &(h.h), &(h.r))
+		updateGeneric(&h.macState, h.buffer[:])
 	}
-	if nn := len(p) - (len(p) % TagSize); nn > 0 {
-		updateGeneric(p, msgBlock, &(h.h), &(h.r))
-		p = p[nn:]
+	if n := len(p) - (len(p) % TagSize); n > 0 {
+		updateGeneric(&h.macState, p[:n])
+		p = p[n:]
 	}
 	if len(p) > 0 {
 		h.offset += copy(h.buffer[h.offset:], p)
 	}
-	return n, nil
+	return nn, nil
 }
 
-func (h *macGeneric) Sum(out *[16]byte) {
-	H, R := h.h, h.r
+// Sum flushes the last incomplete chunk from the buffer, if any, and generates
+// the MAC output. It does not modify its state, in order to allow for multiple
+// calls to Sum, even if no Write is allowed after Sum.
+func (h *macGeneric) Sum(out *[TagSize]byte) {
+	state := h.macState
 	if h.offset > 0 {
-		var buffer [TagSize]byte
-		copy(buffer[:], h.buffer[:h.offset])
-		buffer[h.offset] = 1 // invariant: h.offset < TagSize
-		updateGeneric(buffer[:], finalBlock, &H, &R)
+		updateGeneric(&state, h.buffer[:h.offset])
 	}
-	finalizeGeneric(out, &H, &(h.s))
+	finalize(out, &state.h, &state.s)
 }
 
-func updateGeneric(msg []byte, flag uint32, h, r *[5]uint32) {
-	h0, h1, h2, h3, h4 := h[0], h[1], h[2], h[3], h[4]
-	r0, r1, r2, r3, r4 := uint64(r[0]), uint64(r[1]), uint64(r[2]), uint64(r[3]), uint64(r[4])
-	R1, R2, R3, R4 := r1*5, r2*5, r3*5, r4*5
+// [rMask0, rMask1] is the specified Poly1305 clamping mask in little-endian. It
+// clears some bits of the secret coefficient to make it possible to implement
+// multiplication more efficiently.
+const (
+	rMask0 = 0x0FFFFFFC0FFFFFFF
+	rMask1 = 0x0FFFFFFC0FFFFFFC
+)
 
-	for len(msg) >= TagSize {
-		// h += msg
-		h0 += binary.LittleEndian.Uint32(msg[0:]) & 0x3ffffff
-		h1 += (binary.LittleEndian.Uint32(msg[3:]) >> 2) & 0x3ffffff
-		h2 += (binary.LittleEndian.Uint32(msg[6:]) >> 4) & 0x3ffffff
-		h3 += (binary.LittleEndian.Uint32(msg[9:]) >> 6) & 0x3ffffff
-		h4 += (binary.LittleEndian.Uint32(msg[12:]) >> 8) | flag
-
-		// h *= r
-		d0 := (uint64(h0) * r0) + (uint64(h1) * R4) + (uint64(h2) * R3) + (uint64(h3) * R2) + (uint64(h4) * R1)
-		d1 := (d0 >> 26) + (uint64(h0) * r1) + (uint64(h1) * r0) + (uint64(h2) * R4) + (uint64(h3) * R3) + (uint64(h4) * R2)
-		d2 := (d1 >> 26) + (uint64(h0) * r2) + (uint64(h1) * r1) + (uint64(h2) * r0) + (uint64(h3) * R4) + (uint64(h4) * R3)
-		d3 := (d2 >> 26) + (uint64(h0) * r3) + (uint64(h1) * r2) + (uint64(h2) * r1) + (uint64(h3) * r0) + (uint64(h4) * R4)
-		d4 := (d3 >> 26) + (uint64(h0) * r4) + (uint64(h1) * r3) + (uint64(h2) * r2) + (uint64(h3) * r1) + (uint64(h4) * r0)
-
-		// h %= p
-		h0 = uint32(d0) & 0x3ffffff
-		h1 = uint32(d1) & 0x3ffffff
-		h2 = uint32(d2) & 0x3ffffff
-		h3 = uint32(d3) & 0x3ffffff
-		h4 = uint32(d4) & 0x3ffffff
-
-		h0 += uint32(d4>>26) * 5
-		h1 += h0 >> 26
-		h0 = h0 & 0x3ffffff
-
-		msg = msg[TagSize:]
-	}
-
-	h[0], h[1], h[2], h[3], h[4] = h0, h1, h2, h3, h4
+func initialize(key *[32]byte, r, s *[2]uint64) {
+	r[0] = binary.LittleEndian.Uint64(key[0:8]) & rMask0
+	r[1] = binary.LittleEndian.Uint64(key[8:16]) & rMask1
+	s[0] = binary.LittleEndian.Uint64(key[16:24])
+	s[1] = binary.LittleEndian.Uint64(key[24:32])
 }
 
-func finalizeGeneric(out *[TagSize]byte, h *[5]uint32, s *[4]uint32) {
-	h0, h1, h2, h3, h4 := h[0], h[1], h[2], h[3], h[4]
+// uint128 holds a 128-bit number as two 64-bit limbs, for use with the
+// bits.Mul64 and bits.Add64 intrinsics.
+type uint128 struct {
+	lo, hi uint64
+}
 
-	// h %= p reduction
-	h2 += h1 >> 26
-	h1 &= 0x3ffffff
-	h3 += h2 >> 26
-	h2 &= 0x3ffffff
-	h4 += h3 >> 26
-	h3 &= 0x3ffffff
-	h0 += 5 * (h4 >> 26)
-	h4 &= 0x3ffffff
-	h1 += h0 >> 26
-	h0 &= 0x3ffffff
+func mul64(a, b uint64) uint128 {
+	hi, lo := bitsMul64(a, b)
+	return uint128{lo, hi}
+}
 
-	// h - p
-	t0 := h0 + 5
-	t1 := h1 + (t0 >> 26)
-	t2 := h2 + (t1 >> 26)
-	t3 := h3 + (t2 >> 26)
-	t4 := h4 + (t3 >> 26) - (1 << 26)
-	t0 &= 0x3ffffff
-	t1 &= 0x3ffffff
-	t2 &= 0x3ffffff
-	t3 &= 0x3ffffff
+func add128(a, b uint128) uint128 {
+	lo, c := bitsAdd64(a.lo, b.lo, 0)
+	hi, c := bitsAdd64(a.hi, b.hi, c)
+	if c != 0 {
+		panic("poly1305: unexpected overflow")
+	}
+	return uint128{lo, hi}
+}
 
-	// select h if h < p else h - p
-	t_mask := (t4 >> 31) - 1
-	h_mask := ^t_mask
-	h0 = (h0 & h_mask) | (t0 & t_mask)
-	h1 = (h1 & h_mask) | (t1 & t_mask)
-	h2 = (h2 & h_mask) | (t2 & t_mask)
-	h3 = (h3 & h_mask) | (t3 & t_mask)
-	h4 = (h4 & h_mask) | (t4 & t_mask)
+func shiftRightBy2(a uint128) uint128 {
+	a.lo = a.lo>>2 | (a.hi&3)<<62
+	a.hi = a.hi >> 2
+	return a
+}
 
-	// h %= 2^128
-	h0 |= h1 << 26
-	h1 = ((h1 >> 6) | (h2 << 20))
-	h2 = ((h2 >> 12) | (h3 << 14))
-	h3 = ((h3 >> 18) | (h4 << 8))
+// updateGeneric absorbs msg into the state.h accumulator. For each chunk m of
+// 128 bits of message, it computes
+//
+//     h₊ = (h + m) * r  mod  2¹³⁰ - 5
+//
+// If the msg length is not a multiple of TagSize, it assumes the last
+// incomplete chunk is the final one.
+func updateGeneric(state *macState, msg []byte) {
+	h0, h1, h2 := state.h[0], state.h[1], state.h[2]
+	r0, r1 := state.r[0], state.r[1]
 
-	// s: the s part of the key
-	// tag = (h + s) % (2^128)
-	t := uint64(h0) + uint64(s[0])
-	h0 = uint32(t)
-	t = uint64(h1) + uint64(s[1]) + (t >> 32)
-	h1 = uint32(t)
-	t = uint64(h2) + uint64(s[2]) + (t >> 32)
-	h2 = uint32(t)
-	t = uint64(h3) + uint64(s[3]) + (t >> 32)
-	h3 = uint32(t)
+	for len(msg) > 0 {
+		var c uint64
 
-	binary.LittleEndian.PutUint32(out[0:], h0)
-	binary.LittleEndian.PutUint32(out[4:], h1)
-	binary.LittleEndian.PutUint32(out[8:], h2)
-	binary.LittleEndian.PutUint32(out[12:], h3)
+		// For the first step, h + m, we use a chain of bits.Add64 intrinsics.
+		// The resulting value of h might exceed 2¹³⁰ - 5, but will be partially
+		// reduced at the end of the multiplication below.
+		//
+		// The spec requires us to set a bit just above the message size, not to
+		// hide leading zeroes. For full chunks, that's 1 << 128, so we can just
+		// add 1 to the most significant (2¹²⁸) limb, h2.
+		if len(msg) >= TagSize {
+			h0, c = bitsAdd64(h0, binary.LittleEndian.Uint64(msg[0:8]), 0)
+			h1, c = bitsAdd64(h1, binary.LittleEndian.Uint64(msg[8:16]), c)
+			h2 += c + 1
+
+			msg = msg[TagSize:]
+		} else {
+			var buf [TagSize]byte
+			copy(buf[:], msg)
+			buf[len(msg)] = 1
+
+			h0, c = bitsAdd64(h0, binary.LittleEndian.Uint64(buf[0:8]), 0)
+			h1, c = bitsAdd64(h1, binary.LittleEndian.Uint64(buf[8:16]), c)
+			h2 += c
+
+			msg = nil
+		}
+
+		// Multiplication of big number limbs is similar to elementary school
+		// columnar multiplication. Instead of digits, there are 64-bit limbs.
+		//
+		// We are multiplying a 3 limbs number, h, by a 2 limbs number, r.
+		//
+		//                        h2    h1    h0  x
+		//                              r1    r0  =
+		//                       ----------------
+		//                      h2r0  h1r0  h0r0     <-- individual 128-bit products
+		//            +   h2r1  h1r1  h0r1
+		//               ------------------------
+		//                 m3    m2    m1    m0      <-- result in 128-bit overlapping limbs
+		//               ------------------------
+		//         m3.hi m2.hi m1.hi m0.hi           <-- carry propagation
+		//     +         m3.lo m2.lo m1.lo m0.lo
+		//        -------------------------------
+		//           t4    t3    t2    t1    t0      <-- final result in 64-bit limbs
+		//
+		// The main difference from pen-and-paper multiplication is that we do
+		// carry propagation in a separate step, as if we wrote two digit sums
+		// at first (the 128-bit limbs), and then carried the tens all at once.
+
+		h0r0 := mul64(h0, r0)
+		h1r0 := mul64(h1, r0)
+		h2r0 := mul64(h2, r0)
+		h0r1 := mul64(h0, r1)
+		h1r1 := mul64(h1, r1)
+		h2r1 := mul64(h2, r1)
+
+		// Since h2 is known to be at most 7 (5 + 1 + 1), and r0 and r1 have their
+		// top 4 bits cleared by rMask{0,1}, we know that their product is not going
+		// to overflow 64 bits, so we can ignore the high part of the products.
+		//
+		// This also means that the product doesn't have a fifth limb (t4).
+		if h2r0.hi != 0 {
+			panic("poly1305: unexpected overflow")
+		}
+		if h2r1.hi != 0 {
+			panic("poly1305: unexpected overflow")
+		}
+
+		m0 := h0r0
+		m1 := add128(h1r0, h0r1) // These two additions don't overflow thanks again
+		m2 := add128(h2r0, h1r1) // to the 4 masked bits at the top of r0 and r1.
+		m3 := h2r1
+
+		t0 := m0.lo
+		t1, c := bitsAdd64(m1.lo, m0.hi, 0)
+		t2, c := bitsAdd64(m2.lo, m1.hi, c)
+		t3, _ := bitsAdd64(m3.lo, m2.hi, c)
+
+		// Now we have the result as 4 64-bit limbs, and we need to reduce it
+		// modulo 2¹³⁰ - 5. The special shape of this Crandall prime lets us do
+		// a cheap partial reduction according to the reduction identity
+		//
+		//     c * 2¹³⁰ + n  =  c * 5 + n  mod  2¹³⁰ - 5
+		//
+		// because 2¹³⁰ = 5 mod 2¹³⁰ - 5. Partial reduction since the result is
+		// likely to be larger than 2¹³⁰ - 5, but still small enough to fit the
+		// assumptions we make about h in the rest of the code.
+		//
+		// See also https://speakerdeck.com/gtank/engineering-prime-numbers?slide=23
+
+		// We split the final result at the 2¹³⁰ mark into h and cc, the carry.
+		// Note that the carry bits are effectively shifted left by 2, in other
+		// words, cc = c * 4 for the c in the reduction identity.
+		h0, h1, h2 = t0, t1, t2&maskLow2Bits
+		cc := uint128{t2 & maskNotLow2Bits, t3}
+
+		// To add c * 5 to h, we first add cc = c * 4, and then add (cc >> 2) = c.
+
+		h0, c = bitsAdd64(h0, cc.lo, 0)
+		h1, c = bitsAdd64(h1, cc.hi, c)
+		h2 += c
+
+		cc = shiftRightBy2(cc)
+
+		h0, c = bitsAdd64(h0, cc.lo, 0)
+		h1, c = bitsAdd64(h1, cc.hi, c)
+		h2 += c
+
+		// h2 is at most 3 + 1 + 1 = 5, making the whole of h at most
+		//
+		//     5 * 2¹²⁸ + (2¹²⁸ - 1) = 6 * 2¹²⁸ - 1
+	}
+
+	state.h[0], state.h[1], state.h[2] = h0, h1, h2
+}
+
+const (
+	maskLow2Bits    uint64 = 0x0000000000000003
+	maskNotLow2Bits uint64 = ^maskLow2Bits
+)
+
+// select64 returns x if v == 1 and y if v == 0, in constant time.
+func select64(v, x, y uint64) uint64 { return ^(v-1)&x | (v-1)&y }
+
+// [p0, p1, p2] is 2¹³⁰ - 5 in little endian order.
+const (
+	p0 = 0xFFFFFFFFFFFFFFFB
+	p1 = 0xFFFFFFFFFFFFFFFF
+	p2 = 0x0000000000000003
+)
+
+// finalize completes the modular reduction of h and computes
+//
+//     out = h + s  mod  2¹²⁸
+//
+func finalize(out *[TagSize]byte, h *[3]uint64, s *[2]uint64) {
+	h0, h1, h2 := h[0], h[1], h[2]
+
+	// After the partial reduction in updateGeneric, h might be more than
+	// 2¹³⁰ - 5, but will be less than 2 * (2¹³⁰ - 5). To complete the reduction
+	// in constant time, we compute t = h - (2¹³⁰ - 5), and select h as the
+	// result if the subtraction underflows, and t otherwise.
+
+	hMinusP0, b := bitsSub64(h0, p0, 0)
+	hMinusP1, b := bitsSub64(h1, p1, b)
+	_, b = bitsSub64(h2, p2, b)
+
+	// h = h if h < p else h - p
+	h0 = select64(b, h0, hMinusP0)
+	h1 = select64(b, h1, hMinusP1)
+
+	// Finally, we compute the last Poly1305 step
+	//
+	//     tag = h + s  mod  2¹²⁸
+	//
+	// by just doing a wide addition with the 128 low bits of h and discarding
+	// the overflow.
+	h0, c := bitsAdd64(h0, s[0], 0)
+	h1, _ = bitsAdd64(h1, s[1], c)
+
+	binary.LittleEndian.PutUint64(out[0:8], h0)
+	binary.LittleEndian.PutUint64(out[8:16], h1)
 }
diff --git a/libgo/go/golang.org/x/crypto/poly1305/sum_noasm.go b/libgo/go/golang.org/x/crypto/poly1305/sum_noasm.go
index 8a9c207..1682eda 100644
--- a/libgo/go/golang.org/x/crypto/poly1305/sum_noasm.go
+++ b/libgo/go/golang.org/x/crypto/poly1305/sum_noasm.go
@@ -6,10 +6,7 @@
 
 package poly1305
 
-// Sum generates an authenticator for msg using a one-time key and puts the
-// 16-byte result into out. Authenticating two different messages with the same
-// key allows an attacker to forge messages at will.
-func Sum(out *[TagSize]byte, msg []byte, key *[32]byte) {
+func sum(out *[TagSize]byte, msg []byte, key *[32]byte) {
 	h := newMAC(key)
 	h.Write(msg)
 	h.Sum(out)
diff --git a/libgo/go/golang.org/x/crypto/poly1305/sum_ppc64le.go b/libgo/go/golang.org/x/crypto/poly1305/sum_ppc64le.go
index 2402b63..3233616 100644
--- a/libgo/go/golang.org/x/crypto/poly1305/sum_ppc64le.go
+++ b/libgo/go/golang.org/x/crypto/poly1305/sum_ppc64le.go
@@ -7,62 +7,52 @@
 package poly1305
 
 //go:noescape
-func initialize(state *[7]uint64, key *[32]byte)
+func update(state *macState, msg []byte)
 
-//go:noescape
-func update(state *[7]uint64, msg []byte)
-
-//go:noescape
-func finalize(tag *[TagSize]byte, state *[7]uint64)
-
-// Sum generates an authenticator for m using a one-time key and puts the
-// 16-byte result into out. Authenticating two different messages with the same
-// key allows an attacker to forge messages at will.
-func Sum(out *[16]byte, m []byte, key *[32]byte) {
+func sum(out *[16]byte, m []byte, key *[32]byte) {
 	h := newMAC(key)
 	h.Write(m)
 	h.Sum(out)
 }
 
 func newMAC(key *[32]byte) (h mac) {
-	initialize(&h.state, key)
+	initialize(key, &h.r, &h.s)
 	return
 }
 
-type mac struct {
-	state [7]uint64 // := uint64{ h0, h1, h2, r0, r1, pad0, pad1 }
+// mac is a wrapper for macGeneric that redirects calls that would have gone to
+// updateGeneric to update.
+//
+// Its Write and Sum methods are otherwise identical to the macGeneric ones, but
+// using function pointers would carry a major performance cost.
+type mac struct{ macGeneric }
 
-	buffer [TagSize]byte
-	offset int
-}
-
-func (h *mac) Write(p []byte) (n int, err error) {
-	n = len(p)
+func (h *mac) Write(p []byte) (int, error) {
+	nn := len(p)
 	if h.offset > 0 {
-		remaining := TagSize - h.offset
-		if n < remaining {
-			h.offset += copy(h.buffer[h.offset:], p)
-			return n, nil
+		n := copy(h.buffer[h.offset:], p)
+		if h.offset+n < TagSize {
+			h.offset += n
+			return nn, nil
 		}
-		copy(h.buffer[h.offset:], p[:remaining])
-		p = p[remaining:]
+		p = p[n:]
 		h.offset = 0
-		update(&h.state, h.buffer[:])
+		update(&h.macState, h.buffer[:])
 	}
-	if nn := len(p) - (len(p) % TagSize); nn > 0 {
-		update(&h.state, p[:nn])
-		p = p[nn:]
+	if n := len(p) - (len(p) % TagSize); n > 0 {
+		update(&h.macState, p[:n])
+		p = p[n:]
 	}
 	if len(p) > 0 {
 		h.offset += copy(h.buffer[h.offset:], p)
 	}
-	return n, nil
+	return nn, nil
 }
 
 func (h *mac) Sum(out *[16]byte) {
-	state := h.state
+	state := h.macState
 	if h.offset > 0 {
 		update(&state, h.buffer[:h.offset])
 	}
-	finalize(out, &state)
+	finalize(out, &state.h, &state.s)
 }
diff --git a/libgo/go/golang.org/x/crypto/poly1305/sum_s390x.go b/libgo/go/golang.org/x/crypto/poly1305/sum_s390x.go
index ec99e07..a8920ee 100644
--- a/libgo/go/golang.org/x/crypto/poly1305/sum_s390x.go
+++ b/libgo/go/golang.org/x/crypto/poly1305/sum_s390x.go
@@ -22,10 +22,7 @@
 //go:noescape
 func poly1305vmsl(out *[16]byte, m *byte, mlen uint64, key *[32]byte)
 
-// Sum generates an authenticator for m using a one-time key and puts the
-// 16-byte result into out. Authenticating two different messages with the same
-// key allows an attacker to forge messages at will.
-func Sum(out *[16]byte, m []byte, key *[32]byte) {
+func sum(out *[16]byte, m []byte, key *[32]byte) {
 	if cpu.S390X.HasVX {
 		var mPtr *byte
 		if len(m) > 0 {
diff --git a/libgo/go/golang.org/x/mod/LICENSE b/libgo/go/golang.org/x/mod/LICENSE
new file mode 100644
index 0000000..6a66aea
--- /dev/null
+++ b/libgo/go/golang.org/x/mod/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/libgo/go/golang.org/x/mod/PATENTS b/libgo/go/golang.org/x/mod/PATENTS
new file mode 100644
index 0000000..7330990
--- /dev/null
+++ b/libgo/go/golang.org/x/mod/PATENTS
@@ -0,0 +1,22 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the Go project.
+
+Google hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section)
+patent license to make, have made, use, offer to sell, sell, import,
+transfer and otherwise run, modify and propagate the contents of this
+implementation of Go, where such license applies only to those patent
+claims, both currently owned or controlled by Google and acquired in
+the future, licensable by Google that are necessarily infringed by this
+implementation of Go.  This grant does not include claims that would be
+infringed only as a consequence of further modification of this
+implementation.  If you or your agent or exclusive licensee institute or
+order or agree to the institution of patent litigation against any
+entity (including a cross-claim or counterclaim in a lawsuit) alleging
+that this implementation of Go or any code incorporated within this
+implementation of Go constitutes direct or contributory patent
+infringement, or inducement of patent infringement, then any patent
+rights granted to you under this License for this implementation of Go
+shall terminate as of the date such litigation is filed.
diff --git a/libgo/go/golang.org/x/mod/internal/lazyregexp/lazyre.go b/libgo/go/golang.org/x/mod/internal/lazyregexp/lazyre.go
new file mode 100644
index 0000000..2681af3
--- /dev/null
+++ b/libgo/go/golang.org/x/mod/internal/lazyregexp/lazyre.go
@@ -0,0 +1,78 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package lazyregexp is a thin wrapper over regexp, allowing the use of global
+// regexp variables without forcing them to be compiled at init.
+package lazyregexp
+
+import (
+	"os"
+	"regexp"
+	"strings"
+	"sync"
+)
+
+// Regexp is a wrapper around regexp.Regexp, where the underlying regexp will be
+// compiled the first time it is needed.
+type Regexp struct {
+	str  string
+	once sync.Once
+	rx   *regexp.Regexp
+}
+
+func (r *Regexp) re() *regexp.Regexp {
+	r.once.Do(r.build)
+	return r.rx
+}
+
+func (r *Regexp) build() {
+	r.rx = regexp.MustCompile(r.str)
+	r.str = ""
+}
+
+func (r *Regexp) FindSubmatch(s []byte) [][]byte {
+	return r.re().FindSubmatch(s)
+}
+
+func (r *Regexp) FindStringSubmatch(s string) []string {
+	return r.re().FindStringSubmatch(s)
+}
+
+func (r *Regexp) FindStringSubmatchIndex(s string) []int {
+	return r.re().FindStringSubmatchIndex(s)
+}
+
+func (r *Regexp) ReplaceAllString(src, repl string) string {
+	return r.re().ReplaceAllString(src, repl)
+}
+
+func (r *Regexp) FindString(s string) string {
+	return r.re().FindString(s)
+}
+
+func (r *Regexp) FindAllString(s string, n int) []string {
+	return r.re().FindAllString(s, n)
+}
+
+func (r *Regexp) MatchString(s string) bool {
+	return r.re().MatchString(s)
+}
+
+func (r *Regexp) SubexpNames() []string {
+	return r.re().SubexpNames()
+}
+
+var inTest = len(os.Args) > 0 && strings.HasSuffix(strings.TrimSuffix(os.Args[0], ".exe"), ".test")
+
+// New creates a new lazy regexp, delaying the compiling work until it is first
+// needed. If the code is being run as part of tests, the regexp compiling will
+// happen immediately.
+func New(str string) *Regexp {
+	lr := &Regexp{str: str}
+	if inTest {
+		// In tests, always compile the regexps early.
+		lr.re()
+	}
+	return lr
+}
diff --git a/libgo/go/cmd/go/internal/modfile/print.go b/libgo/go/golang.org/x/mod/modfile/print.go
similarity index 97%
rename from libgo/go/cmd/go/internal/modfile/print.go
rename to libgo/go/golang.org/x/mod/modfile/print.go
index cefc43b..3bbea38 100644
--- a/libgo/go/cmd/go/internal/modfile/print.go
+++ b/libgo/go/golang.org/x/mod/modfile/print.go
@@ -12,6 +12,7 @@
 	"strings"
 )
 
+// Format returns a go.mod file as a byte slice, formatted in standard style.
 func Format(f *FileSyntax) []byte {
 	pr := &printer{}
 	pr.file(f)
diff --git a/libgo/go/cmd/go/internal/modfile/read.go b/libgo/go/golang.org/x/mod/modfile/read.go
similarity index 94%
rename from libgo/go/cmd/go/internal/modfile/read.go
rename to libgo/go/golang.org/x/mod/modfile/read.go
index 1d81ff1..616d00e 100644
--- a/libgo/go/cmd/go/internal/modfile/read.go
+++ b/libgo/go/golang.org/x/mod/modfile/read.go
@@ -17,7 +17,8 @@
 	"unicode/utf8"
 )
 
-// A Position describes the position between two bytes of input.
+// A Position describes an arbitrary source position in a file, including the
+// file, line, column, and byte offset.
 type Position struct {
 	Line     int // line in input (starting at 1)
 	LineRune int // rune in line (starting at 1)
@@ -89,6 +90,19 @@
 	return start, end
 }
 
+// addLine adds a line containing the given tokens to the file.
+//
+// If the first token of the hint matches the first token of the
+// line, the new line is added at the end of the block containing hint,
+// extracting hint into a new block if it is not yet in one.
+//
+// If the hint is non-nil buts its first token does not match,
+// the new line is added after the block containing hint
+// (or hint itself, if not in a block).
+//
+// If no hint is provided, addLine appends the line to the end of
+// the last block with a matching first token,
+// or to the end of the file if no such block exists.
 func (x *FileSyntax) addLine(hint Expr, tokens ...string) *Line {
 	if hint == nil {
 		// If no hint given, add to the last statement of the given type.
@@ -110,11 +124,27 @@
 		}
 	}
 
+	newLineAfter := func(i int) *Line {
+		new := &Line{Token: tokens}
+		if i == len(x.Stmt) {
+			x.Stmt = append(x.Stmt, new)
+		} else {
+			x.Stmt = append(x.Stmt, nil)
+			copy(x.Stmt[i+2:], x.Stmt[i+1:])
+			x.Stmt[i+1] = new
+		}
+		return new
+	}
+
 	if hint != nil {
 		for i, stmt := range x.Stmt {
 			switch stmt := stmt.(type) {
 			case *Line:
 				if stmt == hint {
+					if stmt.Token == nil || stmt.Token[0] != tokens[0] {
+						return newLineAfter(i)
+					}
+
 					// Convert line to line block.
 					stmt.InBlock = true
 					block := &LineBlock{Token: stmt.Token[:1], Line: []*Line{stmt}}
@@ -124,15 +154,25 @@
 					block.Line = append(block.Line, new)
 					return new
 				}
+
 			case *LineBlock:
 				if stmt == hint {
+					if stmt.Token[0] != tokens[0] {
+						return newLineAfter(i)
+					}
+
 					new := &Line{Token: tokens[1:], InBlock: true}
 					stmt.Line = append(stmt.Line, new)
 					return new
 				}
+
 				for j, line := range stmt.Line {
 					if line == hint {
-						// Add new line after hint.
+						if stmt.Token[0] != tokens[0] {
+							return newLineAfter(i)
+						}
+
+						// Add new line after hint within the block.
 						stmt.Line = append(stmt.Line, nil)
 						copy(stmt.Line[j+2:], stmt.Line[j+1:])
 						new := &Line{Token: tokens[1:], InBlock: true}
diff --git a/libgo/go/cmd/go/internal/modfile/rule.go b/libgo/go/golang.org/x/mod/modfile/rule.go
similarity index 94%
rename from libgo/go/cmd/go/internal/modfile/rule.go
rename to libgo/go/golang.org/x/mod/modfile/rule.go
index 6e1a22f..62af068 100644
--- a/libgo/go/cmd/go/internal/modfile/rule.go
+++ b/libgo/go/golang.org/x/mod/modfile/rule.go
@@ -8,14 +8,14 @@
 	"bytes"
 	"errors"
 	"fmt"
-	"internal/lazyregexp"
 	"path/filepath"
 	"sort"
 	"strconv"
 	"strings"
 	"unicode"
 
-	"cmd/go/internal/module"
+	"golang.org/x/mod/internal/lazyregexp"
+	"golang.org/x/mod/module"
 )
 
 // A File is the parsed, interpreted form of a go.mod file.
@@ -153,7 +153,7 @@
 	return f, nil
 }
 
-var GoVersionRE = lazyregexp.New(`([1-9][0-9]*)\.(0|[1-9][0-9]*)`)
+var GoVersionRE = lazyregexp.New(`^([1-9][0-9]*)\.(0|[1-9][0-9]*)$`)
 
 func (f *File) add(errs *bytes.Buffer, line *Line, verb string, args []string, fix VersionFixer, strict bool) {
 	// If strict is false, this module is a dependency.
@@ -223,7 +223,7 @@
 			fmt.Fprintf(errs, "%s:%d: %v\n", f.Syntax.Name, line.Start.Line, err)
 			return
 		}
-		if err := module.MatchPathMajor(v, pathMajor); err != nil {
+		if err := module.CheckPathMajor(v, pathMajor); err != nil {
 			fmt.Fprintf(errs, "%s:%d: %v\n", f.Syntax.Name, line.Start.Line, &Error{Verb: verb, ModPath: s, Err: err})
 			return
 		}
@@ -265,7 +265,7 @@
 				fmt.Fprintf(errs, "%s:%d: %v\n", f.Syntax.Name, line.Start.Line, err)
 				return
 			}
-			if err := module.MatchPathMajor(v, pathMajor); err != nil {
+			if err := module.CheckPathMajor(v, pathMajor); err != nil {
 				fmt.Fprintf(errs, "%s:%d: %v\n", f.Syntax.Name, line.Start.Line, &Error{Verb: verb, ModPath: s, Err: err})
 				return
 			}
@@ -313,8 +313,8 @@
 	if len(line.Suffix) == 0 {
 		return false
 	}
-	f := strings.Fields(line.Suffix[0].Token)
-	return (len(f) == 2 && f[1] == "indirect" || len(f) > 2 && f[1] == "indirect;") && f[0] == "//"
+	f := strings.Fields(strings.TrimPrefix(line.Suffix[0].Token, string(slashSlash)))
+	return (len(f) == 1 && f[0] == "indirect" || len(f) > 1 && f[0] == "indirect;")
 }
 
 // setIndirect sets line to have (or not have) a "// indirect" comment.
@@ -329,13 +329,17 @@
 			line.Suffix = []Comment{{Token: "// indirect", Suffix: true}}
 			return
 		}
-		// Insert at beginning of existing comment.
+
 		com := &line.Suffix[0]
-		space := " "
-		if len(com.Token) > 2 && com.Token[2] == ' ' || com.Token[2] == '\t' {
-			space = ""
+		text := strings.TrimSpace(strings.TrimPrefix(com.Token, string(slashSlash)))
+		if text == "" {
+			// Empty comment.
+			com.Token = "// indirect"
+			return
 		}
-		com.Token = "// indirect;" + space + com.Token[2:]
+
+		// Insert at beginning of existing comment.
+		com.Token = "// indirect; " + text
 		return
 	}
 
@@ -505,9 +509,13 @@
 		return fmt.Errorf("invalid language version string %q", version)
 	}
 	if f.Go == nil {
+		var hint Expr
+		if f.Module != nil && f.Module.Syntax != nil {
+			hint = f.Module.Syntax
+		}
 		f.Go = &Go{
 			Version: version,
-			Syntax:  f.Syntax.addLine(nil, "go", version),
+			Syntax:  f.Syntax.addLine(hint, "go", version),
 		}
 	} else {
 		f.Go.Version = version
@@ -555,6 +563,8 @@
 		if v, ok := need[r.Mod.Path]; ok {
 			r.Mod.Version = v
 			r.Indirect = indirect[r.Mod.Path]
+		} else {
+			*r = Require{}
 		}
 	}
 
@@ -566,6 +576,9 @@
 				var newLines []*Line
 				for _, line := range stmt.Line {
 					if p, err := parseString(&line.Token[0]); err == nil && need[p] != "" {
+						if len(line.Comments.Before) == 1 && len(line.Comments.Before[0].Token) == 0 {
+							line.Comments.Before = line.Comments.Before[:0]
+						}
 						line.Token[1] = need[p]
 						delete(need, p)
 						setIndirect(line, indirect[p])
diff --git a/libgo/go/cmd/go/internal/module/module.go b/libgo/go/golang.org/x/mod/module/module.go
similarity index 70%
rename from libgo/go/cmd/go/internal/module/module.go
rename to libgo/go/golang.org/x/mod/module/module.go
index 3e0baba..6cd3728 100644
--- a/libgo/go/cmd/go/internal/module/module.go
+++ b/libgo/go/golang.org/x/mod/module/module.go
@@ -2,8 +2,86 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// Package module defines the module.Version type
-// along with support code.
+// Package module defines the module.Version type along with support code.
+//
+// The module.Version type is a simple Path, Version pair:
+//
+//	type Version struct {
+//		Path string
+//		Version string
+//	}
+//
+// There are no restrictions imposed directly by use of this structure,
+// but additional checking functions, most notably Check, verify that
+// a particular path, version pair is valid.
+//
+// Escaped Paths
+//
+// Module paths appear as substrings of file system paths
+// (in the download cache) and of web server URLs in the proxy protocol.
+// In general we cannot rely on file systems to be case-sensitive,
+// nor can we rely on web servers, since they read from file systems.
+// That is, we cannot rely on the file system to keep rsc.io/QUOTE
+// and rsc.io/quote separate. Windows and macOS don't.
+// Instead, we must never require two different casings of a file path.
+// Because we want the download cache to match the proxy protocol,
+// and because we want the proxy protocol to be possible to serve
+// from a tree of static files (which might be stored on a case-insensitive
+// file system), the proxy protocol must never require two different casings
+// of a URL path either.
+//
+// One possibility would be to make the escaped form be the lowercase
+// hexadecimal encoding of the actual path bytes. This would avoid ever
+// needing different casings of a file path, but it would be fairly illegible
+// to most programmers when those paths appeared in the file system
+// (including in file paths in compiler errors and stack traces)
+// in web server logs, and so on. Instead, we want a safe escaped form that
+// leaves most paths unaltered.
+//
+// The safe escaped form is to replace every uppercase letter
+// with an exclamation mark followed by the letter's lowercase equivalent.
+//
+// For example,
+//
+//	github.com/Azure/azure-sdk-for-go ->  github.com/!azure/azure-sdk-for-go.
+//	github.com/GoogleCloudPlatform/cloudsql-proxy -> github.com/!google!cloud!platform/cloudsql-proxy
+//	github.com/Sirupsen/logrus -> github.com/!sirupsen/logrus.
+//
+// Import paths that avoid upper-case letters are left unchanged.
+// Note that because import paths are ASCII-only and avoid various
+// problematic punctuation (like : < and >), the escaped form is also ASCII-only
+// and avoids the same problematic punctuation.
+//
+// Import paths have never allowed exclamation marks, so there is no
+// need to define how to escape a literal !.
+//
+// Unicode Restrictions
+//
+// Today, paths are disallowed from using Unicode.
+//
+// Although paths are currently disallowed from using Unicode,
+// we would like at some point to allow Unicode letters as well, to assume that
+// file systems and URLs are Unicode-safe (storing UTF-8), and apply
+// the !-for-uppercase convention for escaping them in the file system.
+// But there are at least two subtle considerations.
+//
+// First, note that not all case-fold equivalent distinct runes
+// form an upper/lower pair.
+// For example, U+004B ('K'), U+006B ('k'), and U+212A ('K' for Kelvin)
+// are three distinct runes that case-fold to each other.
+// When we do add Unicode letters, we must not assume that upper/lower
+// are the only case-equivalent pairs.
+// Perhaps the Kelvin symbol would be disallowed entirely, for example.
+// Or perhaps it would escape as "!!k", or perhaps as "(212A)".
+//
+// Second, it would be nice to allow Unicode marks as well as letters,
+// but marks include combining marks, and then we must deal not
+// only with case folding but also normalization: both U+00E9 ('é')
+// and U+0065 U+0301 ('e' followed by combining acute accent)
+// look the same on the page and are treated by some file systems
+// as the same path. If we do allow Unicode marks in paths, there
+// must be some kind of normalization to allow only one canonical
+// encoding of any character used in an import path.
 package module
 
 // IMPORTANT NOTE
@@ -18,29 +96,42 @@
 // Changes to the semantics in this file require approval from rsc.
 
 import (
-	"errors"
 	"fmt"
 	"sort"
 	"strings"
 	"unicode"
 	"unicode/utf8"
 
-	"cmd/go/internal/semver"
+	"golang.org/x/mod/semver"
+	errors "golang.org/x/xerrors"
 )
 
-// A Version is defined by a module path and version pair.
+// A Version (for clients, a module.Version) is defined by a module path and version pair.
+// These are stored in their plain (unescaped) form.
 type Version struct {
+	// Path is a module path, like "golang.org/x/text" or "rsc.io/quote/v2".
 	Path string
 
 	// Version is usually a semantic version in canonical form.
-	// There are two exceptions to this general rule.
+	// There are three exceptions to this general rule.
 	// First, the top-level target of a build has no specific version
 	// and uses Version = "".
 	// Second, during MVS calculations the version "none" is used
 	// to represent the decision to take no version of a given module.
+	// Third, filesystem paths found in "replace" directives are
+	// represented by a path with an empty version.
 	Version string `json:",omitempty"`
 }
 
+// String returns a representation of the Version suitable for logging
+// (Path@Version, or just Path if Version is empty).
+func (m Version) String() string {
+	if m.Version == "" {
+		return m.Path
+	}
+	return m.Path + "@" + m.Version
+}
+
 // A ModuleError indicates an error specific to a module.
 type ModuleError struct {
 	Path    string
@@ -48,8 +139,13 @@
 	Err     error
 }
 
-// VersionError returns a ModuleError derived from a Version and error.
+// VersionError returns a ModuleError derived from a Version and error,
+// or err itself if it is already such an error.
 func VersionError(v Version, err error) error {
+	var mErr *ModuleError
+	if errors.As(err, &mErr) && mErr.Path == v.Path && mErr.Version == v.Version {
+		return err
+	}
 	return &ModuleError{
 		Path:    v.Path,
 		Version: v.Version,
@@ -112,7 +208,7 @@
 		}
 	}
 	_, pathMajor, _ := SplitPathVersion(path)
-	if err := MatchPathMajor(version, pathMajor); err != nil {
+	if err := CheckPathMajor(version, pathMajor); err != nil {
 		return &ModuleError{Path: path, Err: err}
 	}
 	return nil
@@ -131,7 +227,7 @@
 // Paths can be ASCII letters, ASCII digits, and limited ASCII punctuation: + - . _ and ~.
 // This matches what "go get" has historically recognized in import paths.
 // TODO(rsc): We would like to allow Unicode letters, but that requires additional
-// care in the safe encoding (see note below).
+// care in the safe encoding (see "escaped paths" above).
 func pathOK(r rune) bool {
 	if r < utf8.RuneSelf {
 		return r == '+' || r == '-' || r == '.' || r == '_' || r == '~' ||
@@ -146,7 +242,7 @@
 // For now we allow all Unicode letters but otherwise limit to pathOK plus a few more punctuation characters.
 // If we expand the set of allowed characters here, we have to
 // work harder at detecting potential case-folding and normalization collisions.
-// See note about "safe encoding" below.
+// See note about "escaped paths" above.
 func fileNameOK(r rune) bool {
 	if r < utf8.RuneSelf {
 		// Entire set of ASCII punctuation, from which we remove characters:
@@ -172,6 +268,17 @@
 }
 
 // CheckPath checks that a module path is valid.
+// A valid module path is a valid import path, as checked by CheckImportPath,
+// with two additional constraints.
+// First, the leading path element (up to the first slash, if any),
+// by convention a domain name, must contain only lower-case ASCII letters,
+// ASCII digits, dots (U+002E), and dashes (U+002D);
+// it must contain at least one dot and cannot start with a dash.
+// Second, for a final path element of the form /vN, where N looks numeric
+// (ASCII digits and dots) must not begin with a leading zero, must not be /v1,
+// and must not contain any dots. For paths beginning with "gopkg.in/",
+// this second requirement is replaced by a requirement that the path
+// follow the gopkg.in server's conventions.
 func CheckPath(path string) error {
 	if err := checkPath(path, false); err != nil {
 		return fmt.Errorf("malformed module path %q: %v", path, err)
@@ -201,6 +308,20 @@
 }
 
 // CheckImportPath checks that an import path is valid.
+//
+// A valid import path consists of one or more valid path elements
+// separated by slashes (U+002F). (It must not begin with nor end in a slash.)
+//
+// A valid path element is a non-empty string made up of
+// ASCII letters, ASCII digits, and limited ASCII punctuation: + - . _ and ~.
+// It must not begin or end with a dot (U+002E), nor contain two dots in a row.
+//
+// The element prefix up to the first dot must not be a reserved file name
+// on Windows, regardless of case (CON, com1, NuL, and so on).
+//
+// CheckImportPath may be less restrictive in the future, but see the
+// top-level package documentation for additional information about
+// subtleties of Unicode.
 func CheckImportPath(path string) error {
 	if err := checkPath(path, false); err != nil {
 		return fmt.Errorf("malformed import path %q: %v", path, err)
@@ -224,9 +345,6 @@
 	if path[0] == '-' {
 		return fmt.Errorf("leading dash")
 	}
-	if strings.Contains(path, "..") {
-		return fmt.Errorf("double dot")
-	}
 	if strings.Contains(path, "//") {
 		return fmt.Errorf("double slash")
 	}
@@ -287,7 +405,18 @@
 	return nil
 }
 
-// CheckFilePath checks whether a slash-separated file path is valid.
+// CheckFilePath checks that a slash-separated file path is valid.
+// The definition of a valid file path is the same as the definition
+// of a valid import path except that the set of allowed characters is larger:
+// all Unicode letters, ASCII digits, the ASCII space character (U+0020),
+// and the ASCII punctuation characters
+// “!#$%&()+,-.=@[]^_{}~”.
+// (The excluded punctuation characters, " * < > ? ` ' | / \ and :,
+// have special meanings in certain shells or operating systems.)
+//
+// CheckFilePath may be less restrictive in the future, but see the
+// top-level package documentation for additional information about
+// subtleties of Unicode.
 func CheckFilePath(path string) error {
 	if err := checkPath(path, true); err != nil {
 		return fmt.Errorf("malformed file path %q: %v", path, err)
@@ -326,6 +455,9 @@
 // and version is either empty or "/vN" for N >= 2.
 // As a special case, gopkg.in paths are recognized directly;
 // they require ".vN" instead of "/vN", and for all N, not just N >= 2.
+// SplitPathVersion returns with ok = false when presented with
+// a path whose last path element does not satisfy the constraints
+// applied by CheckPath, such as "example.com/pkg/v1" or "example.com/pkg/v1.2".
 func SplitPathVersion(path string) (prefix, pathMajor string, ok bool) {
 	if strings.HasPrefix(path, "gopkg.in/") {
 		return splitGopkgIn(path)
@@ -372,9 +504,20 @@
 	return prefix, pathMajor, true
 }
 
-// MatchPathMajor returns a non-nil error if the semantic version v
+// MatchPathMajor reports whether the semantic version v
+// matches the path major version pathMajor.
+//
+// MatchPathMajor returns true if and only if CheckPathMajor returns nil.
+func MatchPathMajor(v, pathMajor string) bool {
+	return CheckPathMajor(v, pathMajor) == nil
+}
+
+// CheckPathMajor returns a non-nil error if the semantic version v
 // does not match the path major version pathMajor.
-func MatchPathMajor(v, pathMajor string) error {
+func CheckPathMajor(v, pathMajor string) error {
+	// TODO(jayconrod): return errors or panic for invalid inputs. This function
+	// (and others) was covered by integration tests for cmd/go, and surrounding
+	// code protected against invalid inputs like non-canonical versions.
 	if strings.HasPrefix(pathMajor, ".v") && strings.HasSuffix(pathMajor, "-unstable") {
 		pathMajor = strings.TrimSuffix(pathMajor, "-unstable")
 	}
@@ -434,7 +577,10 @@
 	return cv
 }
 
-// Sort sorts the list by Path, breaking ties by comparing Versions.
+// Sort sorts the list by Path, breaking ties by comparing Version fields.
+// The Version fields are interpreted as semantic versions (using semver.Compare)
+// optionally followed by a tie-breaking suffix introduced by a slash character,
+// like in "v0.0.1/go.mod".
 func Sort(list []Version) {
 	sort.Slice(list, func(i, j int) bool {
 		mi := list[i]
@@ -461,96 +607,36 @@
 	})
 }
 
-// Safe encodings
-//
-// Module paths appear as substrings of file system paths
-// (in the download cache) and of web server URLs in the proxy protocol.
-// In general we cannot rely on file systems to be case-sensitive,
-// nor can we rely on web servers, since they read from file systems.
-// That is, we cannot rely on the file system to keep rsc.io/QUOTE
-// and rsc.io/quote separate. Windows and macOS don't.
-// Instead, we must never require two different casings of a file path.
-// Because we want the download cache to match the proxy protocol,
-// and because we want the proxy protocol to be possible to serve
-// from a tree of static files (which might be stored on a case-insensitive
-// file system), the proxy protocol must never require two different casings
-// of a URL path either.
-//
-// One possibility would be to make the safe encoding be the lowercase
-// hexadecimal encoding of the actual path bytes. This would avoid ever
-// needing different casings of a file path, but it would be fairly illegible
-// to most programmers when those paths appeared in the file system
-// (including in file paths in compiler errors and stack traces)
-// in web server logs, and so on. Instead, we want a safe encoding that
-// leaves most paths unaltered.
-//
-// The safe encoding is this:
-// replace every uppercase letter with an exclamation mark
-// followed by the letter's lowercase equivalent.
-//
-// For example,
-// github.com/Azure/azure-sdk-for-go ->  github.com/!azure/azure-sdk-for-go.
-// github.com/GoogleCloudPlatform/cloudsql-proxy -> github.com/!google!cloud!platform/cloudsql-proxy
-// github.com/Sirupsen/logrus -> github.com/!sirupsen/logrus.
-//
-// Import paths that avoid upper-case letters are left unchanged.
-// Note that because import paths are ASCII-only and avoid various
-// problematic punctuation (like : < and >), the safe encoding is also ASCII-only
-// and avoids the same problematic punctuation.
-//
-// Import paths have never allowed exclamation marks, so there is no
-// need to define how to encode a literal !.
-//
-// Although paths are disallowed from using Unicode (see pathOK above),
-// the eventual plan is to allow Unicode letters as well, to assume that
-// file systems and URLs are Unicode-safe (storing UTF-8), and apply
-// the !-for-uppercase convention. Note however that not all runes that
-// are different but case-fold equivalent are an upper/lower pair.
-// For example, U+004B ('K'), U+006B ('k'), and U+212A ('K' for Kelvin)
-// are considered to case-fold to each other. When we do add Unicode
-// letters, we must not assume that upper/lower are the only case-equivalent pairs.
-// Perhaps the Kelvin symbol would be disallowed entirely, for example.
-// Or perhaps it would encode as "!!k", or perhaps as "(212A)".
-//
-// Also, it would be nice to allow Unicode marks as well as letters,
-// but marks include combining marks, and then we must deal not
-// only with case folding but also normalization: both U+00E9 ('é')
-// and U+0065 U+0301 ('e' followed by combining acute accent)
-// look the same on the page and are treated by some file systems
-// as the same path. If we do allow Unicode marks in paths, there
-// must be some kind of normalization to allow only one canonical
-// encoding of any character used in an import path.
-
-// EncodePath returns the safe encoding of the given module path.
+// EscapePath returns the escaped form of the given module path.
 // It fails if the module path is invalid.
-func EncodePath(path string) (encoding string, err error) {
+func EscapePath(path string) (escaped string, err error) {
 	if err := CheckPath(path); err != nil {
 		return "", err
 	}
 
-	return encodeString(path)
+	return escapeString(path)
 }
 
-// EncodeVersion returns the safe encoding of the given module version.
+// EscapeVersion returns the escaped form of the given module version.
 // Versions are allowed to be in non-semver form but must be valid file names
 // and not contain exclamation marks.
-func EncodeVersion(v string) (encoding string, err error) {
+func EscapeVersion(v string) (escaped string, err error) {
 	if err := checkElem(v, true); err != nil || strings.Contains(v, "!") {
 		return "", &InvalidVersionError{
 			Version: v,
 			Err:     fmt.Errorf("disallowed version string"),
 		}
 	}
-	return encodeString(v)
+	return escapeString(v)
 }
 
-func encodeString(s string) (encoding string, err error) {
+func escapeString(s string) (escaped string, err error) {
 	haveUpper := false
 	for _, r := range s {
 		if r == '!' || r >= utf8.RuneSelf {
 			// This should be disallowed by CheckPath, but diagnose anyway.
-			// The correctness of the encoding loop below depends on it.
-			return "", fmt.Errorf("internal error: inconsistency in EncodePath")
+			// The correctness of the escaping loop below depends on it.
+			return "", fmt.Errorf("internal error: inconsistency in EscapePath")
 		}
 		if 'A' <= r && r <= 'Z' {
 			haveUpper = true
@@ -572,39 +658,39 @@
 	return string(buf), nil
 }
 
-// DecodePath returns the module path of the given safe encoding.
-// It fails if the encoding is invalid or encodes an invalid path.
-func DecodePath(encoding string) (path string, err error) {
-	path, ok := decodeString(encoding)
+// UnescapePath returns the module path for the given escaped path.
+// It fails if the escaped path is invalid or describes an invalid path.
+func UnescapePath(escaped string) (path string, err error) {
+	path, ok := unescapeString(escaped)
 	if !ok {
-		return "", fmt.Errorf("invalid module path encoding %q", encoding)
+		return "", fmt.Errorf("invalid escaped module path %q", escaped)
 	}
 	if err := CheckPath(path); err != nil {
-		return "", fmt.Errorf("invalid module path encoding %q: %v", encoding, err)
+		return "", fmt.Errorf("invalid escaped module path %q: %v", escaped, err)
 	}
 	return path, nil
 }
 
-// DecodeVersion returns the version string for the given safe encoding.
-// It fails if the encoding is invalid or encodes an invalid version.
+// UnescapeVersion returns the version string for the given escaped version.
+// It fails if the escaped form is invalid or describes an invalid version.
 // Versions are allowed to be in non-semver form but must be valid file names
 // and not contain exclamation marks.
-func DecodeVersion(encoding string) (v string, err error) {
-	v, ok := decodeString(encoding)
+func UnescapeVersion(escaped string) (v string, err error) {
+	v, ok := unescapeString(escaped)
 	if !ok {
-		return "", fmt.Errorf("invalid version encoding %q", encoding)
+		return "", fmt.Errorf("invalid escaped version %q", escaped)
 	}
 	if err := checkElem(v, true); err != nil {
-		return "", fmt.Errorf("disallowed version string %q", v)
+		return "", fmt.Errorf("invalid escaped version %q: %v", v, err)
 	}
 	return v, nil
 }
 
-func decodeString(encoding string) (string, bool) {
+func unescapeString(escaped string) (string, bool) {
 	var buf []byte
 
 	bang := false
-	for _, r := range encoding {
+	for _, r := range escaped {
 		if r >= utf8.RuneSelf {
 			return "", false
 		}
diff --git a/libgo/go/cmd/go/internal/semver/semver.go b/libgo/go/golang.org/x/mod/semver/semver.go
similarity index 99%
rename from libgo/go/cmd/go/internal/semver/semver.go
rename to libgo/go/golang.org/x/mod/semver/semver.go
index 122e612..2988e3c 100644
--- a/libgo/go/cmd/go/internal/semver/semver.go
+++ b/libgo/go/golang.org/x/mod/semver/semver.go
@@ -107,7 +107,7 @@
 }
 
 // Compare returns an integer comparing two versions according to
-// according to semantic version precedence.
+// semantic version precedence.
 // The result will be 0 if v == w, -1 if v < w, or +1 if v > w.
 //
 // An invalid semantic version string is considered less than a valid one.
diff --git a/libgo/go/cmd/go/internal/sumweb/cache.go b/libgo/go/golang.org/x/mod/sumdb/cache.go
similarity index 98%
rename from libgo/go/cmd/go/internal/sumweb/cache.go
rename to libgo/go/golang.org/x/mod/sumdb/cache.go
index a8117a7..629e591 100644
--- a/libgo/go/cmd/go/internal/sumweb/cache.go
+++ b/libgo/go/golang.org/x/mod/sumdb/cache.go
@@ -5,7 +5,7 @@
 // Parallel cache.
 // This file is copied from cmd/go/internal/par.
 
-package sumweb
+package sumdb
 
 import (
 	"sync"
diff --git a/libgo/go/cmd/go/internal/sumweb/client.go b/libgo/go/golang.org/x/mod/sumdb/client.go
similarity index 77%
rename from libgo/go/cmd/go/internal/sumweb/client.go
rename to libgo/go/golang.org/x/mod/sumdb/client.go
index 6973e5a..70dd56f 100644
--- a/libgo/go/cmd/go/internal/sumweb/client.go
+++ b/libgo/go/golang.org/x/mod/sumdb/client.go
@@ -2,28 +2,29 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package sumweb
+package sumdb
 
 import (
 	"bytes"
 	"errors"
 	"fmt"
+	"path"
 	"strings"
 	"sync"
 	"sync/atomic"
 
-	"cmd/go/internal/note"
-	"cmd/go/internal/str"
-	"cmd/go/internal/tlog"
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/sumdb/note"
+	"golang.org/x/mod/sumdb/tlog"
 )
 
-// A Client provides the external operations
-// (file caching, HTTP fetches, and so on)
-// needed to implement the HTTP client Conn.
+// A ClientOps provides the external operations
+// (file caching, HTTP fetches, and so on) needed by the Client.
 // The methods must be safe for concurrent use by multiple goroutines.
-type Client interface {
+type ClientOps interface {
 	// ReadRemote reads and returns the content served at the given path
-	// on the remote database server. The path begins with "/lookup" or "/tile/".
+	// on the remote database server. The path begins with "/lookup" or "/tile/",
+	// and there is no need to parse the path in any way.
 	// It is the implementation's responsibility to turn that path into a full URL
 	// and make the HTTP request. ReadRemote should return an error for
 	// any non-200 HTTP response status.
@@ -35,7 +36,7 @@
 	// "key" returns a file containing the verifier key for the server.
 	//
 	// serverName + "/latest" returns a file containing the latest known
-	// signed tree from the server. It is read and written (using WriteConfig).
+	// signed tree from the server.
 	// To signal that the client wishes to start with an "empty" signed tree,
 	// ReadConfig can return a successful empty result (0 bytes of data).
 	ReadConfig(file string) ([]byte, error)
@@ -45,6 +46,7 @@
 	// If the old []byte does not match the stored configuration,
 	// WriteConfig must return ErrWriteConflict.
 	// Otherwise, WriteConfig should atomically replace old with new.
+	// The "key" configuration file is never written using WriteConfig.
 	WriteConfig(file string, old, new []byte) error
 
 	// ReadCache reads and returns the content of the named cache file.
@@ -61,7 +63,7 @@
 	Log(msg string)
 
 	// SecurityError prints the given security error log message.
-	// The Conn returns ErrSecurity from any operation that invokes SecurityError,
+	// The Client returns ErrSecurity from any operation that invokes SecurityError,
 	// but the return value is mainly for testing. In a real program,
 	// SecurityError should typically print the message and call log.Fatal or os.Exit.
 	SecurityError(msg string)
@@ -70,13 +72,13 @@
 // ErrWriteConflict signals a write conflict during Client.WriteConfig.
 var ErrWriteConflict = errors.New("write conflict")
 
-// ErrSecurity is returned by Conn operations that invoke Client.SecurityError.
+// ErrSecurity is returned by Client operations that invoke Client.SecurityError.
 var ErrSecurity = errors.New("security error: misbehaving server")
 
-// A Conn is a client connection to a go.sum database.
+// A Client is a client connection to a checksum database.
 // All the methods are safe for simultaneous use by multiple goroutines.
-type Conn struct {
-	client Client // client-provided external world
+type Client struct {
+	ops ClientOps // access to operations in the external world
 
 	didLookup uint32
 
@@ -97,28 +99,28 @@
 	latestMsg []byte    // encoded signed note for latest
 
 	tileSavedMu sync.Mutex
-	tileSaved   map[tlog.Tile]bool // which tiles have been saved using c.client.WriteCache already
+	tileSaved   map[tlog.Tile]bool // which tiles have been saved using c.ops.WriteCache already
 }
 
-// NewConn returns a new Conn using the given Client.
-func NewConn(client Client) *Conn {
-	return &Conn{
-		client: client,
+// NewClient returns a new Client using the given Client.
+func NewClient(ops ClientOps) *Client {
+	return &Client{
+		ops: ops,
 	}
 }
 
-// init initiailzes the conn (if not already initialized)
+// init initiailzes the client (if not already initialized)
 // and returns any initialization error.
-func (c *Conn) init() error {
+func (c *Client) init() error {
 	c.initOnce.Do(c.initWork)
 	return c.initErr
 }
 
 // initWork does the actual initialization work.
-func (c *Conn) initWork() {
+func (c *Client) initWork() {
 	defer func() {
 		if c.initErr != nil {
-			c.initErr = fmt.Errorf("initializing sumweb.Conn: %v", c.initErr)
+			c.initErr = fmt.Errorf("initializing sumdb.Client: %v", c.initErr)
 		}
 	}()
 
@@ -128,7 +130,7 @@
 	}
 	c.tileSaved = make(map[tlog.Tile]bool)
 
-	vkey, err := c.client.ReadConfig("key")
+	vkey, err := c.ops.ReadConfig("key")
 	if err != nil {
 		c.initErr = err
 		return
@@ -141,7 +143,7 @@
 	c.verifiers = note.VerifierList(verifier)
 	c.name = verifier.Name()
 
-	data, err := c.client.ReadConfig(c.name + "/latest")
+	data, err := c.ops.ReadConfig(c.name + "/latest")
 	if err != nil {
 		c.initErr = err
 		return
@@ -152,24 +154,30 @@
 	}
 }
 
-// SetTileHeight sets the tile height for the Conn.
+// SetTileHeight sets the tile height for the Client.
 // Any call to SetTileHeight must happen before the first call to Lookup.
-// If SetTileHeight is not called, the Conn defaults to tile height 8.
-func (c *Conn) SetTileHeight(height int) {
+// If SetTileHeight is not called, the Client defaults to tile height 8.
+// SetTileHeight can be called at most once,
+// and if so it must be called before the first call to Lookup.
+func (c *Client) SetTileHeight(height int) {
 	if atomic.LoadUint32(&c.didLookup) != 0 {
 		panic("SetTileHeight used after Lookup")
 	}
+	if height <= 0 {
+		panic("invalid call to SetTileHeight")
+	}
 	if c.tileHeight != 0 {
 		panic("multiple calls to SetTileHeight")
 	}
 	c.tileHeight = height
 }
 
-// SetGONOSUMDB sets the list of comma-separated GONOSUMDB patterns for the Conn.
+// SetGONOSUMDB sets the list of comma-separated GONOSUMDB patterns for the Client.
 // For any module path matching one of the patterns,
 // Lookup will return ErrGONOSUMDB.
-// Any call to SetGONOSUMDB must happen before the first call to Lookup.
-func (c *Conn) SetGONOSUMDB(list string) {
+// SetGONOSUMDB can be called at most once,
+// and if so it must be called before the first call to Lookup.
+func (c *Client) SetGONOSUMDB(list string) {
 	if atomic.LoadUint32(&c.didLookup) != 0 {
 		panic("SetGONOSUMDB used after Lookup")
 	}
@@ -184,14 +192,58 @@
 // usually from the environment variable).
 var ErrGONOSUMDB = errors.New("skipped (listed in GONOSUMDB)")
 
-func (c *Conn) skip(target string) bool {
-	return str.GlobsMatchPath(c.nosumdb, target)
+func (c *Client) skip(target string) bool {
+	return globsMatchPath(c.nosumdb, target)
+}
+
+// globsMatchPath reports whether any path prefix of target
+// matches one of the glob patterns (as defined by path.Match)
+// in the comma-separated globs list.
+// It ignores any empty or malformed patterns in the list.
+func globsMatchPath(globs, target string) bool {
+	for globs != "" {
+		// Extract next non-empty glob in comma-separated list.
+		var glob string
+		if i := strings.Index(globs, ","); i >= 0 {
+			glob, globs = globs[:i], globs[i+1:]
+		} else {
+			glob, globs = globs, ""
+		}
+		if glob == "" {
+			continue
+		}
+
+		// A glob with N+1 path elements (N slashes) needs to be matched
+		// against the first N+1 path elements of target,
+		// which end just before the N+1'th slash.
+		n := strings.Count(glob, "/")
+		prefix := target
+		// Walk target, counting slashes, truncating at the N+1'th slash.
+		for i := 0; i < len(target); i++ {
+			if target[i] == '/' {
+				if n == 0 {
+					prefix = target[:i]
+					break
+				}
+				n--
+			}
+		}
+		if n > 0 {
+			// Not enough prefix elements.
+			continue
+		}
+		matched, _ := path.Match(glob, prefix)
+		if matched {
+			return true
+		}
+	}
+	return false
 }
 
 // Lookup returns the go.sum lines for the given module path and version.
 // The version may end in a /go.mod suffix, in which case Lookup returns
 // the go.sum lines for the module's go.mod-only hash.
-func (c *Conn) Lookup(path, vers string) (lines []string, err error) {
+func (c *Client) Lookup(path, vers string) (lines []string, err error) {
 	atomic.StoreUint32(&c.didLookup, 1)
 
 	if c.skip(path) {
@@ -209,16 +261,16 @@
 	}
 
 	// Prepare encoded cache filename / URL.
-	epath, err := encodePath(path)
+	epath, err := module.EscapePath(path)
 	if err != nil {
 		return nil, err
 	}
-	evers, err := encodeVersion(strings.TrimSuffix(vers, "/go.mod"))
+	evers, err := module.EscapeVersion(strings.TrimSuffix(vers, "/go.mod"))
 	if err != nil {
 		return nil, err
 	}
-	file := c.name + "/lookup/" + epath + "@" + evers
 	remotePath := "/lookup/" + epath + "@" + evers
+	file := c.name + remotePath
 
 	// Fetch the data.
 	// The lookupCache avoids redundant ReadCache/GetURL operations
@@ -232,9 +284,9 @@
 	result := c.record.Do(file, func() interface{} {
 		// Try the on-disk cache, or else get from web.
 		writeCache := false
-		data, err := c.client.ReadCache(file)
+		data, err := c.ops.ReadCache(file)
 		if err != nil {
-			data, err = c.client.ReadRemote(remotePath)
+			data, err = c.ops.ReadRemote(remotePath)
 			if err != nil {
 				return cached{nil, err}
 			}
@@ -256,7 +308,7 @@
 		// Now that we've validated the record,
 		// save it to the on-disk cache (unless that's where it came from).
 		if writeCache {
-			c.client.WriteCache(file, data)
+			c.ops.WriteCache(file, data)
 		}
 
 		return cached{data, nil}
@@ -278,15 +330,15 @@
 }
 
 // mergeLatest merges the tree head in msg
-// with the Conn's current latest tree head,
+// with the Client's current latest tree head,
 // ensuring the result is a consistent timeline.
-// If the result is inconsistent, mergeLatest calls c.client.SecurityError
+// If the result is inconsistent, mergeLatest calls c.ops.SecurityError
 // with a detailed security error message and then
-// (only if c.client.SecurityError does not exit the program) returns ErrSecurity.
-// If the Conn's current latest tree head moves forward,
+// (only if c.ops.SecurityError does not exit the program) returns ErrSecurity.
+// If the Client's current latest tree head moves forward,
 // mergeLatest updates the underlying configuration file as well,
 // taking care to merge any independent updates to that configuration.
-func (c *Conn) mergeLatest(msg []byte) error {
+func (c *Client) mergeLatest(msg []byte) error {
 	// Merge msg into our in-memory copy of the latest tree head.
 	when, err := c.mergeLatestMem(msg)
 	if err != nil {
@@ -303,7 +355,7 @@
 	// we need to merge any updates made there as well.
 	// Note that writeConfig is an atomic compare-and-swap.
 	for {
-		msg, err := c.client.ReadConfig(c.name + "/latest")
+		msg, err := c.ops.ReadConfig(c.name + "/latest")
 		if err != nil {
 			return err
 		}
@@ -321,7 +373,7 @@
 		c.latestMu.Lock()
 		latestMsg := c.latestMsg
 		c.latestMu.Unlock()
-		if err := c.client.WriteConfig(c.name+"/latest", msg, latestMsg); err != ErrWriteConflict {
+		if err := c.ops.WriteConfig(c.name+"/latest", msg, latestMsg); err != ErrWriteConflict {
 			// Success or a non-write-conflict error.
 			return err
 		}
@@ -342,7 +394,7 @@
 // msgPast means msg was from before c.latest,
 // msgNow means msg was exactly c.latest, and
 // msgFuture means msg was from after c.latest, which has now been updated.
-func (c *Conn) mergeLatestMem(msg []byte) (when int, err error) {
+func (c *Client) mergeLatestMem(msg []byte) (when int, err error) {
 	if len(msg) == 0 {
 		// Accept empty msg as the unsigned, empty timeline.
 		c.latestMu.Lock()
@@ -412,7 +464,7 @@
 // If an error occurs, such as malformed data or a network problem, checkTrees returns that error.
 // If on the other hand checkTrees finds evidence of misbehavior, it prepares a detailed
 // message and calls log.Fatal.
-func (c *Conn) checkTrees(older tlog.Tree, olderNote []byte, newer tlog.Tree, newerNote []byte) error {
+func (c *Client) checkTrees(older tlog.Tree, olderNote []byte, newer tlog.Tree, newerNote []byte) error {
 	thr := tlog.TileHashReader(newer, &c.tileReader)
 	h, err := tlog.TreeHash(older.N, thr)
 	if err != nil {
@@ -456,12 +508,12 @@
 			fmt.Fprintf(&buf, "\n\t%v", h)
 		}
 	}
-	c.client.SecurityError(buf.String())
+	c.ops.SecurityError(buf.String())
 	return ErrSecurity
 }
 
 // checkRecord checks that record #id's hash matches data.
-func (c *Conn) checkRecord(id int64, data []byte) error {
+func (c *Client) checkRecord(id int64, data []byte) error {
 	c.latestMu.Lock()
 	latest := c.latest
 	c.latestMu.Unlock()
@@ -479,11 +531,11 @@
 	return fmt.Errorf("cannot authenticate record data in server response")
 }
 
-// tileReader is a *Conn wrapper that implements tlog.TileReader.
+// tileReader is a *Client wrapper that implements tlog.TileReader.
 // The separate type avoids exposing the ReadTiles and SaveTiles
-// methods on Conn itself.
+// methods on Client itself.
 type tileReader struct {
-	c *Conn
+	c *Client
 }
 
 func (r *tileReader) Height() int {
@@ -516,17 +568,17 @@
 }
 
 // tileCacheKey returns the cache key for the tile.
-func (c *Conn) tileCacheKey(tile tlog.Tile) string {
+func (c *Client) tileCacheKey(tile tlog.Tile) string {
 	return c.name + "/" + tile.Path()
 }
 
 // tileRemotePath returns the remote path for the tile.
-func (c *Conn) tileRemotePath(tile tlog.Tile) string {
+func (c *Client) tileRemotePath(tile tlog.Tile) string {
 	return "/" + tile.Path()
 }
 
 // readTile reads a single tile, either from the on-disk cache or the server.
-func (c *Conn) readTile(tile tlog.Tile) ([]byte, error) {
+func (c *Client) readTile(tile tlog.Tile) ([]byte, error) {
 	type cached struct {
 		data []byte
 		err  error
@@ -534,7 +586,7 @@
 
 	result := c.tileCache.Do(tile, func() interface{} {
 		// Try the requested tile in on-disk cache.
-		data, err := c.client.ReadCache(c.tileCacheKey(tile))
+		data, err := c.ops.ReadCache(c.tileCacheKey(tile))
 		if err == nil {
 			c.markTileSaved(tile)
 			return cached{data, nil}
@@ -544,9 +596,9 @@
 		// We only save authenticated tiles to the on-disk cache,
 		// so the recreated prefix is equally authenticated.
 		full := tile
-		full.W = 1 << tile.H
+		full.W = 1 << uint(tile.H)
 		if tile != full {
-			data, err := c.client.ReadCache(c.tileCacheKey(full))
+			data, err := c.ops.ReadCache(c.tileCacheKey(full))
 			if err == nil {
 				c.markTileSaved(tile) // don't save tile later; we already have full
 				return cached{data[:len(data)/full.W*tile.W], nil}
@@ -554,7 +606,7 @@
 		}
 
 		// Try requested tile from server.
-		data, err = c.client.ReadRemote(c.tileRemotePath(tile))
+		data, err = c.ops.ReadRemote(c.tileRemotePath(tile))
 		if err == nil {
 			return cached{data, nil}
 		}
@@ -564,7 +616,7 @@
 		// the tile has been completed and only the complete one
 		// is available.
 		if tile != full {
-			data, err := c.client.ReadRemote(c.tileRemotePath(full))
+			data, err := c.ops.ReadRemote(c.tileRemotePath(full))
 			if err == nil {
 				// Note: We could save the full tile in the on-disk cache here,
 				// but we don't know if it is valid yet, and we will only find out
@@ -585,7 +637,7 @@
 
 // markTileSaved records that tile is already present in the on-disk cache,
 // so that a future SaveTiles for that tile can be ignored.
-func (c *Conn) markTileSaved(tile tlog.Tile) {
+func (c *Client) markTileSaved(tile tlog.Tile) {
 	c.tileSavedMu.Lock()
 	c.tileSaved[tile] = true
 	c.tileSavedMu.Unlock()
@@ -613,7 +665,7 @@
 			// c.tileSaved[tile] is still true and we will not try to write it again.
 			// Next time we run maybe we'll redownload it again and be
 			// more successful.
-			c.client.WriteCache(c.name+"/"+tile.Path(), data[i])
+			c.ops.WriteCache(c.name+"/"+tile.Path(), data[i])
 		}
 	}
 }
diff --git a/libgo/go/golang.org/x/mod/sumdb/dirhash/hash.go b/libgo/go/golang.org/x/mod/sumdb/dirhash/hash.go
new file mode 100644
index 0000000..ef5df6f
--- /dev/null
+++ b/libgo/go/golang.org/x/mod/sumdb/dirhash/hash.go
@@ -0,0 +1,132 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package dirhash defines hashes over directory trees.
+// These hashes are recorded in go.sum files and in the Go checksum database,
+// to allow verifying that a newly-downloaded module has the expected content.
+package dirhash
+
+import (
+	"archive/zip"
+	"crypto/sha256"
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+)
+
+// DefaultHash is the default hash function used in new go.sum entries.
+var DefaultHash Hash = Hash1
+
+// A Hash is a directory hash function.
+// It accepts a list of files along with a function that opens the content of each file.
+// It opens, reads, hashes, and closes each file and returns the overall directory hash.
+type Hash func(files []string, open func(string) (io.ReadCloser, error)) (string, error)
+
+// Hash1 is the "h1:" directory hash function, using SHA-256.
+//
+// Hash1 is "h1:" followed by the base64-encoded SHA-256 hash of a summary
+// prepared as if by the Unix command:
+//
+//	find . -type f | sort | sha256sum
+//
+// More precisely, the hashed summary contains a single line for each file in the list,
+// ordered by sort.Strings applied to the file names, where each line consists of
+// the hexadecimal SHA-256 hash of the file content,
+// two spaces (U+0020), the file name, and a newline (U+000A).
+//
+// File names with newlines (U+000A) are disallowed.
+func Hash1(files []string, open func(string) (io.ReadCloser, error)) (string, error) {
+	h := sha256.New()
+	files = append([]string(nil), files...)
+	sort.Strings(files)
+	for _, file := range files {
+		if strings.Contains(file, "\n") {
+			return "", errors.New("dirhash: filenames with newlines are not supported")
+		}
+		r, err := open(file)
+		if err != nil {
+			return "", err
+		}
+		hf := sha256.New()
+		_, err = io.Copy(hf, r)
+		r.Close()
+		if err != nil {
+			return "", err
+		}
+		fmt.Fprintf(h, "%x  %s\n", hf.Sum(nil), file)
+	}
+	return "h1:" + base64.StdEncoding.EncodeToString(h.Sum(nil)), nil
+}
+
+// HashDir returns the hash of the local file system directory dir,
+// replacing the directory name itself with prefix in the file names
+// used in the hash function.
+func HashDir(dir, prefix string, hash Hash) (string, error) {
+	files, err := DirFiles(dir, prefix)
+	if err != nil {
+		return "", err
+	}
+	osOpen := func(name string) (io.ReadCloser, error) {
+		return os.Open(filepath.Join(dir, strings.TrimPrefix(name, prefix)))
+	}
+	return hash(files, osOpen)
+}
+
+// DirFiles returns the list of files in the tree rooted at dir,
+// replacing the directory name dir with prefix in each name.
+// The resulting names always use forward slashes.
+func DirFiles(dir, prefix string) ([]string, error) {
+	var files []string
+	dir = filepath.Clean(dir)
+	err := filepath.Walk(dir, func(file string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if info.IsDir() {
+			return nil
+		}
+		rel := file
+		if dir != "." {
+			rel = file[len(dir)+1:]
+		}
+		f := filepath.Join(prefix, rel)
+		files = append(files, filepath.ToSlash(f))
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return files, nil
+}
+
+// HashZip returns the hash of the file content in the named zip file.
+// Only the file names and their contents are included in the hash:
+// the exact zip file format encoding, compression method,
+// per-file modification times, and other metadata are ignored.
+func HashZip(zipfile string, hash Hash) (string, error) {
+	z, err := zip.OpenReader(zipfile)
+	if err != nil {
+		return "", err
+	}
+	defer z.Close()
+	var files []string
+	zfiles := make(map[string]*zip.File)
+	for _, file := range z.File {
+		files = append(files, file.Name)
+		zfiles[file.Name] = file
+	}
+	zipOpen := func(name string) (io.ReadCloser, error) {
+		f := zfiles[name]
+		if f == nil {
+			return nil, fmt.Errorf("file %q not found in zip", name) // should never happen
+		}
+		return f.Open()
+	}
+	return hash(files, zipOpen)
+}
diff --git a/libgo/go/cmd/go/internal/note/note.go b/libgo/go/golang.org/x/mod/sumdb/note/note.go
similarity index 99%
rename from libgo/go/cmd/go/internal/note/note.go
rename to libgo/go/golang.org/x/mod/sumdb/note/note.go
index f770da2..3c8e67b 100644
--- a/libgo/go/cmd/go/internal/note/note.go
+++ b/libgo/go/golang.org/x/mod/sumdb/note/note.go
@@ -183,7 +183,6 @@
 
 import (
 	"bytes"
-	"crypto/ed25519"
 	"crypto/sha256"
 	"encoding/base64"
 	"encoding/binary"
@@ -194,6 +193,8 @@
 	"strings"
 	"unicode"
 	"unicode/utf8"
+
+	"golang.org/x/crypto/ed25519"
 )
 
 // A Verifier verifies messages signed with a specific key.
@@ -548,9 +549,6 @@
 		Text: string(text),
 	}
 
-	var buf bytes.Buffer
-	buf.Write(text)
-
 	// Parse and verify signatures.
 	// Ignore duplicate signatures.
 	seen := make(map[nameHash]bool)
diff --git a/libgo/go/cmd/go/internal/sumweb/server.go b/libgo/go/golang.org/x/mod/sumdb/server.go
similarity index 65%
rename from libgo/go/cmd/go/internal/sumweb/server.go
rename to libgo/go/golang.org/x/mod/sumdb/server.go
index 5050805..28866f1 100644
--- a/libgo/go/cmd/go/internal/sumweb/server.go
+++ b/libgo/go/golang.org/x/mod/sumdb/server.go
@@ -2,58 +2,60 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// Package sumweb implements the HTTP protocols for serving or accessing a go.sum database.
-package sumweb
+// Package sumdb implements the HTTP protocols for serving or accessing a module checksum database.
+package sumdb
 
 import (
 	"context"
-	"internal/lazyregexp"
 	"net/http"
 	"os"
 	"strings"
 
-	"cmd/go/internal/tlog"
+	"golang.org/x/mod/internal/lazyregexp"
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/sumdb/tlog"
 )
 
-// A Server provides the external operations
-// (underlying database access and so on)
-// needed to implement the HTTP server Handler.
-type Server interface {
-	// NewContext returns the context to use for the request r.
-	NewContext(r *http.Request) (context.Context, error)
-
+// A ServerOps provides the external operations
+// (underlying database access and so on) needed by the Server.
+type ServerOps interface {
 	// Signed returns the signed hash of the latest tree.
 	Signed(ctx context.Context) ([]byte, error)
 
 	// ReadRecords returns the content for the n records id through id+n-1.
 	ReadRecords(ctx context.Context, id, n int64) ([][]byte, error)
 
-	// Lookup looks up a record by its associated key ("module@version"),
+	// Lookup looks up a record for the given module,
 	// returning the record ID.
-	Lookup(ctx context.Context, key string) (int64, error)
+	Lookup(ctx context.Context, m module.Version) (int64, error)
 
 	// ReadTileData reads the content of tile t.
 	// It is only invoked for hash tiles (t.L ≥ 0).
 	ReadTileData(ctx context.Context, t tlog.Tile) ([]byte, error)
 }
 
-// A Handler is the go.sum database server handler,
-// which should be invoked to serve the paths listed in Paths.
-// The calling code is responsible for initializing Server.
-type Handler struct {
-	Server Server
+// A Server is the checksum database HTTP server,
+// which implements http.Handler and should be invoked
+// to serve the paths listed in ServerPaths.
+type Server struct {
+	ops ServerOps
 }
 
-// Paths are the URL paths for which Handler should be invoked.
+// NewServer returns a new Server using the given operations.
+func NewServer(ops ServerOps) *Server {
+	return &Server{ops: ops}
+}
+
+// ServerPaths are the URL paths the Server can (and should) serve.
 //
 // Typically a server will do:
 //
-//	handler := &sumweb.Handler{Server: srv}
-//	for _, path := range sumweb.Paths {
-//		http.HandleFunc(path, handler)
+//	srv := sumdb.NewServer(ops)
+//	for _, path := range sumdb.ServerPaths {
+//		http.Handle(path, srv)
 //	}
 //
-var Paths = []string{
+var ServerPaths = []string{
 	"/lookup/",
 	"/latest",
 	"/tile/",
@@ -61,12 +63,8 @@
 
 var modVerRE = lazyregexp.New(`^[^@]+@v[0-9]+\.[0-9]+\.[0-9]+(-[^@]*)?(\+incompatible)?$`)
 
-func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	ctx, err := h.Server.NewContext(r)
-	if err != nil {
-		http.Error(w, err.Error(), 500)
-		return
-	}
+func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
 
 	switch {
 	default:
@@ -79,23 +77,23 @@
 			return
 		}
 		i := strings.Index(mod, "@")
-		encPath, encVers := mod[:i], mod[i+1:]
-		path, err := decodePath(encPath)
+		escPath, escVers := mod[:i], mod[i+1:]
+		path, err := module.UnescapePath(escPath)
 		if err != nil {
-			reportError(w, r, err)
+			reportError(w, err)
 			return
 		}
-		vers, err := decodeVersion(encVers)
+		vers, err := module.UnescapeVersion(escVers)
 		if err != nil {
-			reportError(w, r, err)
+			reportError(w, err)
 			return
 		}
-		id, err := h.Server.Lookup(ctx, path+"@"+vers)
+		id, err := s.ops.Lookup(ctx, module.Version{Path: path, Version: vers})
 		if err != nil {
-			reportError(w, r, err)
+			reportError(w, err)
 			return
 		}
-		records, err := h.Server.ReadRecords(ctx, id, 1)
+		records, err := s.ops.ReadRecords(ctx, id, 1)
 		if err != nil {
 			// This should never happen - the lookup says the record exists.
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -110,7 +108,7 @@
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
-		signed, err := h.Server.Signed(ctx)
+		signed, err := s.ops.Signed(ctx)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
@@ -120,7 +118,7 @@
 		w.Write(signed)
 
 	case r.URL.Path == "/latest":
-		data, err := h.Server.Signed(ctx)
+		data, err := s.ops.Signed(ctx)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
@@ -137,9 +135,9 @@
 		if t.L == -1 {
 			// Record data.
 			start := t.N << uint(t.H)
-			records, err := h.Server.ReadRecords(ctx, start, int64(t.W))
+			records, err := s.ops.ReadRecords(ctx, start, int64(t.W))
 			if err != nil {
-				reportError(w, r, err)
+				reportError(w, err)
 				return
 			}
 			if len(records) != t.W {
@@ -159,9 +157,9 @@
 			return
 		}
 
-		data, err := h.Server.ReadTileData(ctx, t)
+		data, err := s.ops.ReadTileData(ctx, t)
 		if err != nil {
-			reportError(w, r, err)
+			reportError(w, err)
 			return
 		}
 		w.Header().Set("Content-Type", "application/octet-stream")
@@ -174,7 +172,7 @@
 // Otherwise it is an internal server error.
 // The caller must only call reportError in contexts where
 // a not-found err should be reported as 404.
-func reportError(w http.ResponseWriter, r *http.Request, err error) {
+func reportError(w http.ResponseWriter, err error) {
 	if os.IsNotExist(err) {
 		http.Error(w, err.Error(), http.StatusNotFound)
 		return
diff --git a/libgo/go/cmd/go/internal/sumweb/test.go b/libgo/go/golang.org/x/mod/sumdb/test.go
similarity index 84%
rename from libgo/go/cmd/go/internal/sumweb/test.go
rename to libgo/go/golang.org/x/mod/sumdb/test.go
index cce86e7..e4c166d 100644
--- a/libgo/go/cmd/go/internal/sumweb/test.go
+++ b/libgo/go/golang.org/x/mod/sumdb/test.go
@@ -2,22 +2,21 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package sumweb
+package sumdb
 
 import (
 	"context"
 	"fmt"
-	"net/http"
-	"strings"
 	"sync"
 
-	"cmd/go/internal/note"
-	"cmd/go/internal/tlog"
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/sumdb/note"
+	"golang.org/x/mod/sumdb/tlog"
 )
 
 // NewTestServer constructs a new TestServer
 // that will sign its tree with the given signer key
-// (see cmd/go/internal/note)
+// (see golang.org/x/mod/sumdb/note)
 // and fetch new records as needed by calling gosum.
 func NewTestServer(signer string, gosum func(path, vers string) ([]byte, error)) *TestServer {
 	return &TestServer{signer: signer, gosum: gosum}
@@ -45,10 +44,6 @@
 	return list, nil
 }
 
-func (s *TestServer) NewContext(r *http.Request) (context.Context, error) {
-	return nil, nil
-}
-
 func (s *TestServer) Signed(ctx context.Context) ([]byte, error) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
@@ -80,7 +75,8 @@
 	return list, nil
 }
 
-func (s *TestServer) Lookup(ctx context.Context, key string) (int64, error) {
+func (s *TestServer) Lookup(ctx context.Context, m module.Version) (int64, error) {
+	key := m.String()
 	s.mu.Lock()
 	id, ok := s.lookup[key]
 	s.mu.Unlock()
@@ -89,12 +85,7 @@
 	}
 
 	// Look up module and compute go.sum lines.
-	i := strings.Index(key, "@")
-	if i < 0 {
-		return 0, fmt.Errorf("invalid lookup key %q", key)
-	}
-	path, vers := key[:i], key[i+1:]
-	data, err := s.gosum(path, vers)
+	data, err := s.gosum(m.Path, m.Version)
 	if err != nil {
 		return 0, err
 	}
diff --git a/libgo/go/cmd/go/internal/tlog/note.go b/libgo/go/golang.org/x/mod/sumdb/tlog/note.go
similarity index 98%
rename from libgo/go/cmd/go/internal/tlog/note.go
rename to libgo/go/golang.org/x/mod/sumdb/tlog/note.go
index 65c7164..ce5353e 100644
--- a/libgo/go/cmd/go/internal/tlog/note.go
+++ b/libgo/go/golang.org/x/mod/sumdb/tlog/note.go
@@ -41,7 +41,7 @@
 var errMalformedTree = errors.New("malformed tree note")
 var treePrefix = []byte("go.sum database tree\n")
 
-// ParseTree parses a tree root description.
+// ParseTree parses a formatted tree root description.
 func ParseTree(text []byte) (tree Tree, err error) {
 	// The message looks like:
 	//
diff --git a/libgo/go/cmd/go/internal/tlog/tile.go b/libgo/go/golang.org/x/mod/sumdb/tlog/tile.go
similarity index 93%
rename from libgo/go/cmd/go/internal/tlog/tile.go
rename to libgo/go/golang.org/x/mod/sumdb/tlog/tile.go
index 694d89c..e4aeb14 100644
--- a/libgo/go/cmd/go/internal/tlog/tile.go
+++ b/libgo/go/golang.org/x/mod/sumdb/tlog/tile.go
@@ -33,6 +33,9 @@
 // The special level L=-1 holds raw record data instead of hashes.
 // In this case, the level encodes into a tile path as the path element
 // "data" instead of "-1".
+//
+// See also https://golang.org/design/25530-sumdb#checksum-database
+// and https://research.swtch.com/tlog#tiling_a_log.
 type Tile struct {
 	H int   // height of tile (1 ≤ H ≤ 30)
 	L int   // level in tiling (-1 ≤ L ≤ 63)
@@ -40,11 +43,13 @@
 	W int   // width of tile (1 ≤ W ≤ 2**H; 2**H is complete tile)
 }
 
-// TileForIndex returns the tile of height h ≥ 1
+// TileForIndex returns the tile of fixed height h ≥ 1
 // and least width storing the given hash storage index.
+//
+// If h ≤ 0, TileForIndex panics.
 func TileForIndex(h int, index int64) Tile {
-	if h < 1 {
-		panic("TileForIndex: invalid height")
+	if h <= 0 {
+		panic(fmt.Sprintf("TileForIndex: invalid height %d", h))
 	}
 	t, _, _ := tileForIndex(h, index)
 	return t
@@ -99,8 +104,10 @@
 // that must be published when publishing from a tree of
 // size newTreeSize to replace a tree of size oldTreeSize.
 // (No tiles need to be published for a tree of size zero.)
+//
+// If h ≤ 0, TileForIndex panics.
 func NewTiles(h int, oldTreeSize, newTreeSize int64) []Tile {
-	if h < 1 {
+	if h <= 0 {
 		panic(fmt.Sprintf("NewTiles: invalid height %d", h))
 	}
 	H := uint(h)
@@ -244,6 +251,16 @@
 	// a data record for each tile (len(data) == len(tiles))
 	// and each data record must be the correct length
 	// (len(data[i]) == tiles[i].W*HashSize).
+	//
+	// An implementation of ReadTiles typically reads
+	// them from an on-disk cache or else from a remote
+	// tile server. Tile data downloaded from a server should
+	// be considered suspect and not saved into a persistent
+	// on-disk cache before returning from ReadTiles.
+	// When the client confirms the validity of the tile data,
+	// it will call SaveTiles to signal that they can be safely
+	// written to persistent storage.
+	// See also https://research.swtch.com/tlog#authenticating_tiles.
 	ReadTiles(tiles []Tile) (data [][]byte, err error)
 
 	// SaveTiles informs the TileReader that the tile data
diff --git a/libgo/go/cmd/go/internal/tlog/tlog.go b/libgo/go/golang.org/x/mod/sumdb/tlog/tlog.go
similarity index 98%
rename from libgo/go/cmd/go/internal/tlog/tlog.go
rename to libgo/go/golang.org/x/mod/sumdb/tlog/tlog.go
index 6703656..01d06c4 100644
--- a/libgo/go/cmd/go/internal/tlog/tlog.go
+++ b/libgo/go/golang.org/x/mod/sumdb/tlog/tlog.go
@@ -5,9 +5,6 @@
 // Package tlog implements a tamper-evident log
 // used in the Go module go.sum database server.
 //
-// This package is part of a DRAFT of what the go.sum database server will look like.
-// Do not assume the details here are final!
-//
 // This package follows the design of Certificate Transparency (RFC 6962)
 // and its proofs are compatible with that system.
 // See TestCertificateTransparency.
@@ -121,7 +118,7 @@
 func StoredHashIndex(level int, n int64) int64 {
 	// Level L's n'th hash is written right after level L+1's 2n+1'th hash.
 	// Work our way down to the level 0 ordering.
-	// We'll add back the orignal level count at the end.
+	// We'll add back the original level count at the end.
 	for l := level; l > 0; l-- {
 		n = 2*n + 1
 	}
@@ -155,7 +152,7 @@
 		n++
 		indexN = x
 	}
-	// The hash we want was commited with record n,
+	// The hash we want was committed with record n,
 	// meaning it is one of (0, n), (1, n/2), (2, n/4), ...
 	level = int(index - indexN)
 	return level, n >> uint(level)
diff --git a/libgo/go/golang.org/x/mod/zip/zip.go b/libgo/go/golang.org/x/mod/zip/zip.go
new file mode 100644
index 0000000..37c7642
--- /dev/null
+++ b/libgo/go/golang.org/x/mod/zip/zip.go
@@ -0,0 +1,570 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package zip provides functions for creating and extracting module zip files.
+//
+// Module zip files have several restrictions listed below. These are necessary
+// to ensure that module zip files can be extracted consistently on supported
+// platforms and file systems.
+//
+// • All file paths within a zip file must start with "<module>@<version>/",
+// where "<module>" is the module path and "<version>" is the version.
+// The module path must be valid (see golang.org/x/mod/module.CheckPath).
+// The version must be valid and canonical (see
+// golang.org/x/mod/module.CanonicalVersion). The path must have a major
+// version suffix consistent with the version (see
+// golang.org/x/mod/module.Check). The part of the file path after the
+// "<module>@<version>/" prefix must be valid (see
+// golang.org/x/mod/module.CheckFilePath).
+//
+// • No two file paths may be equal under Unicode case-folding (see
+// strings.EqualFold).
+//
+// • A go.mod file may or may not appear in the top-level directory. If present,
+// it must be named "go.mod", not any other case. Files named "go.mod"
+// are not allowed in any other directory.
+//
+// • The total size in bytes of a module zip file may be at most MaxZipFile
+// bytes (500 MiB). The total uncompressed size of the files within the
+// zip may also be at most MaxZipFile bytes.
+//
+// • Each file's uncompressed size must match its declared 64-bit uncompressed
+// size in the zip file header.
+//
+// • If the zip contains files named "<module>@<version>/go.mod" or
+// "<module>@<version>/LICENSE", their sizes in bytes may be at most
+// MaxGoMod or MaxLICENSE, respectively (both are 16 MiB).
+//
+// • Empty directories are ignored. File permissions and timestamps are also
+// ignored.
+//
+// • Symbolic links and other irregular files are not allowed.
+//
+// Note that this package does not provide hashing functionality. See
+// golang.org/x/mod/sumdb/dirhash.
+package zip
+
+import (
+	"archive/zip"
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+	"strings"
+	"unicode"
+	"unicode/utf8"
+
+	"golang.org/x/mod/module"
+)
+
+const (
+	// MaxZipFile is the maximum size in bytes of a module zip file. The
+	// go command will report an error if either the zip file or its extracted
+	// content is larger than this.
+	MaxZipFile = 500 << 20
+
+	// MaxGoMod is the maximum size in bytes of a go.mod file within a
+	// module zip file.
+	MaxGoMod = 16 << 20
+
+	// MaxLICENSE is the maximum size in bytes of a LICENSE file within a
+	// module zip file.
+	MaxLICENSE = 16 << 20
+)
+
+// File provides an abstraction for a file in a directory, zip, or anything
+// else that looks like a file.
+type File interface {
+	// Path returns a clean slash-separated relative path from the module root
+	// directory to the file.
+	Path() string
+
+	// Lstat returns information about the file. If the file is a symbolic link,
+	// Lstat returns information about the link itself, not the file it points to.
+	Lstat() (os.FileInfo, error)
+
+	// Open provides access to the data within a regular file. Open may return
+	// an error if called on a directory or symbolic link.
+	Open() (io.ReadCloser, error)
+}
+
+// Create builds a zip archive for module m from an abstract list of files
+// and writes it to w.
+//
+// Create verifies the restrictions described in the package documentation
+// and should not produce an archive that Unzip cannot extract. Create does not
+// include files in the output archive if they don't belong in the module zip.
+// In particular, Create will not include files in modules found in
+// subdirectories, most files in vendor directories, or irregular files (such
+// as symbolic links) in the output archive.
+func Create(w io.Writer, m module.Version, files []File) (err error) {
+	defer func() {
+		if err != nil {
+			err = &zipError{verb: "create zip", err: err}
+		}
+	}()
+
+	// Check that the version is canonical, the module path is well-formed, and
+	// the major version suffix matches the major version.
+	if vers := module.CanonicalVersion(m.Version); vers != m.Version {
+		return fmt.Errorf("version %q is not canonical (should be %q)", m.Version, vers)
+	}
+	if err := module.Check(m.Path, m.Version); err != nil {
+		return err
+	}
+
+	// Find directories containing go.mod files (other than the root).
+	// These directories will not be included in the output zip.
+	haveGoMod := make(map[string]bool)
+	for _, f := range files {
+		dir, base := path.Split(f.Path())
+		if strings.EqualFold(base, "go.mod") {
+			info, err := f.Lstat()
+			if err != nil {
+				return err
+			}
+			if info.Mode().IsRegular() {
+				haveGoMod[dir] = true
+			}
+		}
+	}
+
+	inSubmodule := func(p string) bool {
+		for {
+			dir, _ := path.Split(p)
+			if dir == "" {
+				return false
+			}
+			if haveGoMod[dir] {
+				return true
+			}
+			p = dir[:len(dir)-1]
+		}
+	}
+
+	// Create the module zip file.
+	zw := zip.NewWriter(w)
+	prefix := fmt.Sprintf("%s@%s/", m.Path, m.Version)
+
+	addFile := func(f File, path string, size int64) error {
+		rc, err := f.Open()
+		if err != nil {
+			return err
+		}
+		defer rc.Close()
+		w, err := zw.Create(prefix + path)
+		if err != nil {
+			return err
+		}
+		lr := &io.LimitedReader{R: rc, N: size + 1}
+		if _, err := io.Copy(w, lr); err != nil {
+			return err
+		}
+		if lr.N <= 0 {
+			return fmt.Errorf("file %q is larger than declared size", path)
+		}
+		return nil
+	}
+
+	collisions := make(collisionChecker)
+	maxSize := int64(MaxZipFile)
+	for _, f := range files {
+		p := f.Path()
+		if p != path.Clean(p) {
+			return fmt.Errorf("file path %s is not clean", p)
+		}
+		if path.IsAbs(p) {
+			return fmt.Errorf("file path %s is not relative", p)
+		}
+		if isVendoredPackage(p) || inSubmodule(p) {
+			continue
+		}
+		if p == ".hg_archival.txt" {
+			// Inserted by hg archive.
+			// The go command drops this regardless of the VCS being used.
+			continue
+		}
+		if err := module.CheckFilePath(p); err != nil {
+			return err
+		}
+		if strings.ToLower(p) == "go.mod" && p != "go.mod" {
+			return fmt.Errorf("found file named %s, want all lower-case go.mod", p)
+		}
+		info, err := f.Lstat()
+		if err != nil {
+			return err
+		}
+		if err := collisions.check(p, info.IsDir()); err != nil {
+			return err
+		}
+		if !info.Mode().IsRegular() {
+			// Skip symbolic links (golang.org/issue/27093).
+			continue
+		}
+		size := info.Size()
+		if size < 0 || maxSize < size {
+			return fmt.Errorf("module source tree too large (max size is %d bytes)", MaxZipFile)
+		}
+		maxSize -= size
+		if p == "go.mod" && size > MaxGoMod {
+			return fmt.Errorf("go.mod file too large (max size is %d bytes)", MaxGoMod)
+		}
+		if p == "LICENSE" && size > MaxLICENSE {
+			return fmt.Errorf("LICENSE file too large (max size is %d bytes)", MaxLICENSE)
+		}
+
+		if err := addFile(f, p, size); err != nil {
+			return err
+		}
+	}
+
+	return zw.Close()
+}
+
+// CreateFromDir creates a module zip file for module m from the contents of
+// a directory, dir. The zip content is written to w.
+//
+// CreateFromDir verifies the restrictions described in the package
+// documentation and should not produce an archive that Unzip cannot extract.
+// CreateFromDir does not include files in the output archive if they don't
+// belong in the module zip. In particular, CreateFromDir will not include
+// files in modules found in subdirectories, most files in vendor directories,
+// or irregular files (such as symbolic links) in the output archive.
+// Additionally, unlike Create, CreateFromDir will not include directories
+// named ".bzr", ".git", ".hg", or ".svn".
+func CreateFromDir(w io.Writer, m module.Version, dir string) (err error) {
+	defer func() {
+		if zerr, ok := err.(*zipError); ok {
+			zerr.path = dir
+		} else if err != nil {
+			err = &zipError{verb: "create zip", path: dir, err: err}
+		}
+	}()
+
+	var files []File
+	err = filepath.Walk(dir, func(filePath string, info os.FileInfo, err error) error {
+		relPath, err := filepath.Rel(dir, filePath)
+		if err != nil {
+			return err
+		}
+		slashPath := filepath.ToSlash(relPath)
+
+		if info.IsDir() {
+			if filePath == dir {
+				// Don't skip the top-level directory.
+				return nil
+			}
+
+			// Skip VCS directories.
+			// fossil repos are regular files with arbitrary names, so we don't try
+			// to exclude them.
+			switch filepath.Base(filePath) {
+			case ".bzr", ".git", ".hg", ".svn":
+				return filepath.SkipDir
+			}
+
+			// Skip some subdirectories inside vendor, but maintain bug
+			// golang.org/issue/31562, described in isVendoredPackage.
+			// We would like Create and CreateFromDir to produce the same result
+			// for a set of files, whether expressed as a directory tree or zip.
+			if isVendoredPackage(slashPath) {
+				return filepath.SkipDir
+			}
+
+			// Skip submodules (directories containing go.mod files).
+			if goModInfo, err := os.Lstat(filepath.Join(filePath, "go.mod")); err == nil && !goModInfo.IsDir() {
+				return filepath.SkipDir
+			}
+			return nil
+		}
+
+		if info.Mode().IsRegular() {
+			if !isVendoredPackage(slashPath) {
+				files = append(files, dirFile{
+					filePath:  filePath,
+					slashPath: slashPath,
+					info:      info,
+				})
+			}
+			return nil
+		}
+
+		// Not a regular file or a directory. Probably a symbolic link.
+		// Irregular files are ignored, so skip it.
+		return nil
+	})
+	if err != nil {
+		return err
+	}
+
+	return Create(w, m, files)
+}
+
+type dirFile struct {
+	filePath, slashPath string
+	info                os.FileInfo
+}
+
+func (f dirFile) Path() string                 { return f.slashPath }
+func (f dirFile) Lstat() (os.FileInfo, error)  { return f.info, nil }
+func (f dirFile) Open() (io.ReadCloser, error) { return os.Open(f.filePath) }
+
+func isVendoredPackage(name string) bool {
+	var i int
+	if strings.HasPrefix(name, "vendor/") {
+		i += len("vendor/")
+	} else if j := strings.Index(name, "/vendor/"); j >= 0 {
+		// This offset looks incorrect; this should probably be
+		//
+		// 	i = j + len("/vendor/")
+		//
+		// (See https://golang.org/issue/31562.)
+		//
+		// Unfortunately, we can't fix it without invalidating checksums.
+		// Fortunately, the error appears to be strictly conservative: we'll retain
+		// vendored packages that we should have pruned, but we won't prune
+		// non-vendored packages that we should have retained.
+		//
+		// Since this defect doesn't seem to break anything, it's not worth fixing
+		// for now.
+		i += len("/vendor/")
+	} else {
+		return false
+	}
+	return strings.Contains(name[i:], "/")
+}
+
+// Unzip extracts the contents of a module zip file to a directory.
+//
+// Unzip checks all restrictions listed in the package documentation and returns
+// an error if the zip archive is not valid. In some cases, files may be written
+// to dir before an error is returned (for example, if a file's uncompressed
+// size does not match its declared size).
+//
+// dir may or may not exist: Unzip will create it and any missing parent
+// directories if it doesn't exist. If dir exists, it must be empty.
+func Unzip(dir string, m module.Version, zipFile string) (err error) {
+	defer func() {
+		if err != nil {
+			err = &zipError{verb: "unzip", path: zipFile, err: err}
+		}
+	}()
+
+	if vers := module.CanonicalVersion(m.Version); vers != m.Version {
+		return fmt.Errorf("version %q is not canonical (should be %q)", m.Version, vers)
+	}
+	if err := module.Check(m.Path, m.Version); err != nil {
+		return err
+	}
+
+	// Check that the directory is empty. Don't create it yet in case there's
+	// an error reading the zip.
+	files, _ := ioutil.ReadDir(dir)
+	if len(files) > 0 {
+		return fmt.Errorf("target directory %v exists and is not empty", dir)
+	}
+
+	// Open the zip file and ensure it's under the size limit.
+	f, err := os.Open(zipFile)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	info, err := f.Stat()
+	if err != nil {
+		return err
+	}
+	zipSize := info.Size()
+	if zipSize > MaxZipFile {
+		return fmt.Errorf("module zip file is too large (%d bytes; limit is %d bytes)", zipSize, MaxZipFile)
+	}
+
+	z, err := zip.NewReader(f, zipSize)
+	if err != nil {
+		return err
+	}
+
+	// Check total size, valid file names.
+	collisions := make(collisionChecker)
+	prefix := fmt.Sprintf("%s@%s/", m.Path, m.Version)
+	var size int64
+	for _, zf := range z.File {
+		if !strings.HasPrefix(zf.Name, prefix) {
+			return fmt.Errorf("unexpected file name %s", zf.Name)
+		}
+		name := zf.Name[len(prefix):]
+		if name == "" {
+			continue
+		}
+		isDir := strings.HasSuffix(name, "/")
+		if isDir {
+			name = name[:len(name)-1]
+		}
+		if path.Clean(name) != name {
+			return fmt.Errorf("invalid file name %s", zf.Name)
+		}
+		if err := module.CheckFilePath(name); err != nil {
+			return err
+		}
+		if err := collisions.check(name, isDir); err != nil {
+			return err
+		}
+		if isDir {
+			continue
+		}
+		if base := path.Base(name); strings.EqualFold(base, "go.mod") {
+			if base != name {
+				return fmt.Errorf("found go.mod file not in module root directory (%s)", zf.Name)
+			} else if name != "go.mod" {
+				return fmt.Errorf("found file named %s, want all lower-case go.mod", zf.Name)
+			}
+		}
+		s := int64(zf.UncompressedSize64)
+		if s < 0 || MaxZipFile-size < s {
+			return fmt.Errorf("total uncompressed size of module contents too large (max size is %d bytes)", MaxZipFile)
+		}
+		size += s
+		if name == "go.mod" && s > MaxGoMod {
+			return fmt.Errorf("go.mod file too large (max size is %d bytes)", MaxGoMod)
+		}
+		if name == "LICENSE" && s > MaxLICENSE {
+			return fmt.Errorf("LICENSE file too large (max size is %d bytes)", MaxLICENSE)
+		}
+	}
+
+	// Unzip, enforcing sizes checked earlier.
+	if err := os.MkdirAll(dir, 0777); err != nil {
+		return err
+	}
+	for _, zf := range z.File {
+		name := zf.Name[len(prefix):]
+		if name == "" || strings.HasSuffix(name, "/") {
+			continue
+		}
+		dst := filepath.Join(dir, name)
+		if err := os.MkdirAll(filepath.Dir(dst), 0777); err != nil {
+			return err
+		}
+		w, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0444)
+		if err != nil {
+			return err
+		}
+		r, err := zf.Open()
+		if err != nil {
+			w.Close()
+			return err
+		}
+		lr := &io.LimitedReader{R: r, N: int64(zf.UncompressedSize64) + 1}
+		_, err = io.Copy(w, lr)
+		r.Close()
+		if err != nil {
+			w.Close()
+			return err
+		}
+		if err := w.Close(); err != nil {
+			return err
+		}
+		if lr.N <= 0 {
+			return fmt.Errorf("uncompressed size of file %s is larger than declared size (%d bytes)", zf.Name, zf.UncompressedSize64)
+		}
+	}
+
+	return nil
+}
+
+// collisionChecker finds case-insensitive name collisions and paths that
+// are listed as both files and directories.
+//
+// The keys of this map are processed with strToFold. pathInfo has the original
+// path for each folded path.
+type collisionChecker map[string]pathInfo
+
+type pathInfo struct {
+	path  string
+	isDir bool
+}
+
+func (cc collisionChecker) check(p string, isDir bool) error {
+	fold := strToFold(p)
+	if other, ok := cc[fold]; ok {
+		if p != other.path {
+			return fmt.Errorf("case-insensitive file name collision: %q and %q", other.path, p)
+		}
+		if isDir != other.isDir {
+			return fmt.Errorf("entry %q is both a file and a directory", p)
+		}
+		if !isDir {
+			return fmt.Errorf("multiple entries for file %q", p)
+		}
+		// It's not an error if check is called with the same directory multiple
+		// times. check is called recursively on parent directories, so check
+		// may be called on the same directory many times.
+	} else {
+		cc[fold] = pathInfo{path: p, isDir: isDir}
+	}
+
+	if parent := path.Dir(p); parent != "." {
+		return cc.check(parent, true)
+	}
+	return nil
+}
+
+type zipError struct {
+	verb, path string
+	err        error
+}
+
+func (e *zipError) Error() string {
+	if e.path == "" {
+		return fmt.Sprintf("%s: %v", e.verb, e.err)
+	} else {
+		return fmt.Sprintf("%s %s: %v", e.verb, e.path, e.err)
+	}
+}
+
+func (e *zipError) Unwrap() error {
+	return e.err
+}
+
+// strToFold returns a string with the property that
+//	strings.EqualFold(s, t) iff strToFold(s) == strToFold(t)
+// This lets us test a large set of strings for fold-equivalent
+// duplicates without making a quadratic number of calls
+// to EqualFold. Note that strings.ToUpper and strings.ToLower
+// do not have the desired property in some corner cases.
+func strToFold(s string) string {
+	// Fast path: all ASCII, no upper case.
+	// Most paths look like this already.
+	for i := 0; i < len(s); i++ {
+		c := s[i]
+		if c >= utf8.RuneSelf || 'A' <= c && c <= 'Z' {
+			goto Slow
+		}
+	}
+	return s
+
+Slow:
+	var buf bytes.Buffer
+	for _, r := range s {
+		// SimpleFold(x) cycles to the next equivalent rune > x
+		// or wraps around to smaller values. Iterate until it wraps,
+		// and we've found the minimum value.
+		for {
+			r0 := r
+			r = unicode.SimpleFold(r0)
+			if r <= r0 {
+				break
+			}
+		}
+		// Exception to allow fast path above: A-Z => a-z
+		if 'A' <= r && r <= 'Z' {
+			r += 'a' - 'A'
+		}
+		buf.WriteRune(r)
+	}
+	return buf.String()
+}
diff --git a/libgo/go/golang.org/x/net/dns/dnsmessage/message.go b/libgo/go/golang.org/x/net/dns/dnsmessage/message.go
index 13fbc08..82bcdcc 100644
--- a/libgo/go/golang.org/x/net/dns/dnsmessage/message.go
+++ b/libgo/go/golang.org/x/net/dns/dnsmessage/message.go
@@ -1660,7 +1660,7 @@
 	return nil
 }
 
-// EDNS(0) wire costants.
+// EDNS(0) wire constants.
 const (
 	edns0Version = 0
 
diff --git a/libgo/go/golang.org/x/net/http2/hpack/encode.go b/libgo/go/golang.org/x/net/http2/hpack/encode.go
index 1565cf2..97f1783 100644
--- a/libgo/go/golang.org/x/net/http2/hpack/encode.go
+++ b/libgo/go/golang.org/x/net/http2/hpack/encode.go
@@ -150,7 +150,7 @@
 // extended buffer.
 //
 // If f.Sensitive is true, "Never Indexed" representation is used. If
-// f.Sensitive is false and indexing is true, "Inremental Indexing"
+// f.Sensitive is false and indexing is true, "Incremental Indexing"
 // representation is used.
 func appendNewName(dst []byte, f HeaderField, indexing bool) []byte {
 	dst = append(dst, encodeTypeByte(indexing, f.Sensitive))
diff --git a/libgo/go/golang.org/x/net/idna/tables11.0.0.go b/libgo/go/golang.org/x/net/idna/tables11.0.0.go
index c515d7a..8ce0811 100644
--- a/libgo/go/golang.org/x/net/idna/tables11.0.0.go
+++ b/libgo/go/golang.org/x/net/idna/tables11.0.0.go
@@ -1,6 +1,6 @@
 // Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
 
-// +build go1.13
+// +build go1.13,!go1.14
 
 package idna
 
diff --git a/libgo/go/golang.org/x/net/idna/tables12.00.go b/libgo/go/golang.org/x/net/idna/tables12.00.go
new file mode 100644
index 0000000..f4b8ea3
--- /dev/null
+++ b/libgo/go/golang.org/x/net/idna/tables12.00.go
@@ -0,0 +1,4733 @@
+// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+
+// +build go1.14
+
+package idna
+
+// UnicodeVersion is the Unicode version from which the tables in this package are derived.
+const UnicodeVersion = "12.0.0"
+
+var mappings string = "" + // Size: 8178 bytes
+	"\x00\x01 \x03 ̈\x01a\x03 ̄\x012\x013\x03 ́\x03 ̧\x011\x01o\x051⁄4\x051⁄2" +
+	"\x053⁄4\x03i̇\x03l·\x03ʼn\x01s\x03dž\x03ⱥ\x03ⱦ\x01h\x01j\x01r\x01w\x01y" +
+	"\x03 ̆\x03 ̇\x03 ̊\x03 ̨\x03 ̃\x03 ̋\x01l\x01x\x04̈́\x03 ι\x01;\x05 ̈́" +
+	"\x04եւ\x04اٴ\x04وٴ\x04ۇٴ\x04يٴ\x06क़\x06ख़\x06ग़\x06ज़\x06ड़\x06ढ़\x06फ़" +
+	"\x06य़\x06ড়\x06ঢ়\x06য়\x06ਲ਼\x06ਸ਼\x06ਖ਼\x06ਗ਼\x06ਜ਼\x06ਫ਼\x06ଡ଼\x06ଢ଼" +
+	"\x06ํา\x06ໍາ\x06ຫນ\x06ຫມ\x06གྷ\x06ཌྷ\x06དྷ\x06བྷ\x06ཛྷ\x06ཀྵ\x06ཱི\x06ཱུ" +
+	"\x06ྲྀ\x09ྲཱྀ\x06ླྀ\x09ླཱྀ\x06ཱྀ\x06ྒྷ\x06ྜྷ\x06ྡྷ\x06ྦྷ\x06ྫྷ\x06ྐྵ\x02" +
+	"в\x02д\x02о\x02с\x02т\x02ъ\x02ѣ\x02æ\x01b\x01d\x01e\x02ǝ\x01g\x01i\x01k" +
+	"\x01m\x01n\x02ȣ\x01p\x01t\x01u\x02ɐ\x02ɑ\x02ə\x02ɛ\x02ɜ\x02ŋ\x02ɔ\x02ɯ" +
+	"\x01v\x02β\x02γ\x02δ\x02φ\x02χ\x02ρ\x02н\x02ɒ\x01c\x02ɕ\x02ð\x01f\x02ɟ" +
+	"\x02ɡ\x02ɥ\x02ɨ\x02ɩ\x02ɪ\x02ʝ\x02ɭ\x02ʟ\x02ɱ\x02ɰ\x02ɲ\x02ɳ\x02ɴ\x02ɵ" +
+	"\x02ɸ\x02ʂ\x02ʃ\x02ƫ\x02ʉ\x02ʊ\x02ʋ\x02ʌ\x01z\x02ʐ\x02ʑ\x02ʒ\x02θ\x02ss" +
+	"\x02ά\x02έ\x02ή\x02ί\x02ό\x02ύ\x02ώ\x05ἀι\x05ἁι\x05ἂι\x05ἃι\x05ἄι\x05ἅι" +
+	"\x05ἆι\x05ἇι\x05ἠι\x05ἡι\x05ἢι\x05ἣι\x05ἤι\x05ἥι\x05ἦι\x05ἧι\x05ὠι\x05ὡι" +
+	"\x05ὢι\x05ὣι\x05ὤι\x05ὥι\x05ὦι\x05ὧι\x05ὰι\x04αι\x04άι\x05ᾶι\x02ι\x05 ̈͂" +
+	"\x05ὴι\x04ηι\x04ήι\x05ῆι\x05 ̓̀\x05 ̓́\x05 ̓͂\x02ΐ\x05 ̔̀\x05 ̔́\x05 ̔͂" +
+	"\x02ΰ\x05 ̈̀\x01`\x05ὼι\x04ωι\x04ώι\x05ῶι\x06′′\x09′′′\x06‵‵\x09‵‵‵\x02!" +
+	"!\x02??\x02?!\x02!?\x0c′′′′\x010\x014\x015\x016\x017\x018\x019\x01+\x01=" +
+	"\x01(\x01)\x02rs\x02ħ\x02no\x01q\x02sm\x02tm\x02ω\x02å\x02א\x02ב\x02ג" +
+	"\x02ד\x02π\x051⁄7\x051⁄9\x061⁄10\x051⁄3\x052⁄3\x051⁄5\x052⁄5\x053⁄5\x054" +
+	"⁄5\x051⁄6\x055⁄6\x051⁄8\x053⁄8\x055⁄8\x057⁄8\x041⁄\x02ii\x02iv\x02vi" +
+	"\x04viii\x02ix\x02xi\x050⁄3\x06∫∫\x09∫∫∫\x06∮∮\x09∮∮∮\x0210\x0211\x0212" +
+	"\x0213\x0214\x0215\x0216\x0217\x0218\x0219\x0220\x04(10)\x04(11)\x04(12)" +
+	"\x04(13)\x04(14)\x04(15)\x04(16)\x04(17)\x04(18)\x04(19)\x04(20)\x0c∫∫∫∫" +
+	"\x02==\x05⫝̸\x02ɫ\x02ɽ\x02ȿ\x02ɀ\x01.\x04 ゙\x04 ゚\x06より\x06コト\x05(ᄀ)\x05" +
+	"(ᄂ)\x05(ᄃ)\x05(ᄅ)\x05(ᄆ)\x05(ᄇ)\x05(ᄉ)\x05(ᄋ)\x05(ᄌ)\x05(ᄎ)\x05(ᄏ)\x05(ᄐ" +
+	")\x05(ᄑ)\x05(ᄒ)\x05(가)\x05(나)\x05(다)\x05(라)\x05(마)\x05(바)\x05(사)\x05(아)" +
+	"\x05(자)\x05(차)\x05(카)\x05(타)\x05(파)\x05(하)\x05(주)\x08(오전)\x08(오후)\x05(一)" +
+	"\x05(二)\x05(三)\x05(四)\x05(五)\x05(六)\x05(七)\x05(八)\x05(九)\x05(十)\x05(月)" +
+	"\x05(火)\x05(水)\x05(木)\x05(金)\x05(土)\x05(日)\x05(株)\x05(有)\x05(社)\x05(名)" +
+	"\x05(特)\x05(財)\x05(祝)\x05(労)\x05(代)\x05(呼)\x05(学)\x05(監)\x05(企)\x05(資)" +
+	"\x05(協)\x05(祭)\x05(休)\x05(自)\x05(至)\x0221\x0222\x0223\x0224\x0225\x0226" +
+	"\x0227\x0228\x0229\x0230\x0231\x0232\x0233\x0234\x0235\x06참고\x06주의\x0236" +
+	"\x0237\x0238\x0239\x0240\x0241\x0242\x0243\x0244\x0245\x0246\x0247\x0248" +
+	"\x0249\x0250\x041月\x042月\x043月\x044月\x045月\x046月\x047月\x048月\x049月\x0510" +
+	"月\x0511月\x0512月\x02hg\x02ev\x0cアパート\x0cアルファ\x0cアンペア\x09アール\x0cイニング\x09" +
+	"インチ\x09ウォン\x0fエスクード\x0cエーカー\x09オンス\x09オーム\x09カイリ\x0cカラット\x0cカロリー\x09ガロ" +
+	"ン\x09ガンマ\x06ギガ\x09ギニー\x0cキュリー\x0cギルダー\x06キロ\x0fキログラム\x12キロメートル\x0fキロワッ" +
+	"ト\x09グラム\x0fグラムトン\x0fクルゼイロ\x0cクローネ\x09ケース\x09コルナ\x09コーポ\x0cサイクル\x0fサンチ" +
+	"ーム\x0cシリング\x09センチ\x09セント\x09ダース\x06デシ\x06ドル\x06トン\x06ナノ\x09ノット\x09ハイツ" +
+	"\x0fパーセント\x09パーツ\x0cバーレル\x0fピアストル\x09ピクル\x06ピコ\x06ビル\x0fファラッド\x0cフィート" +
+	"\x0fブッシェル\x09フラン\x0fヘクタール\x06ペソ\x09ペニヒ\x09ヘルツ\x09ペンス\x09ページ\x09ベータ\x0cポイ" +
+	"ント\x09ボルト\x06ホン\x09ポンド\x09ホール\x09ホーン\x0cマイクロ\x09マイル\x09マッハ\x09マルク\x0fマ" +
+	"ンション\x0cミクロン\x06ミリ\x0fミリバール\x06メガ\x0cメガトン\x0cメートル\x09ヤード\x09ヤール\x09ユアン" +
+	"\x0cリットル\x06リラ\x09ルピー\x0cルーブル\x06レム\x0fレントゲン\x09ワット\x040点\x041点\x042点" +
+	"\x043点\x044点\x045点\x046点\x047点\x048点\x049点\x0510点\x0511点\x0512点\x0513点" +
+	"\x0514点\x0515点\x0516点\x0517点\x0518点\x0519点\x0520点\x0521点\x0522点\x0523点" +
+	"\x0524点\x02da\x02au\x02ov\x02pc\x02dm\x02iu\x06平成\x06昭和\x06大正\x06明治\x0c株" +
+	"式会社\x02pa\x02na\x02ma\x02ka\x02kb\x02mb\x02gb\x04kcal\x02pf\x02nf\x02m" +
+	"g\x02kg\x02hz\x02ml\x02dl\x02kl\x02fm\x02nm\x02mm\x02cm\x02km\x02m2\x02m" +
+	"3\x05m∕s\x06m∕s2\x07rad∕s\x08rad∕s2\x02ps\x02ns\x02ms\x02pv\x02nv\x02mv" +
+	"\x02kv\x02pw\x02nw\x02mw\x02kw\x02bq\x02cc\x02cd\x06c∕kg\x02db\x02gy\x02" +
+	"ha\x02hp\x02in\x02kk\x02kt\x02lm\x02ln\x02lx\x02ph\x02pr\x02sr\x02sv\x02" +
+	"wb\x05v∕m\x05a∕m\x041日\x042日\x043日\x044日\x045日\x046日\x047日\x048日\x049日" +
+	"\x0510日\x0511日\x0512日\x0513日\x0514日\x0515日\x0516日\x0517日\x0518日\x0519日" +
+	"\x0520日\x0521日\x0522日\x0523日\x0524日\x0525日\x0526日\x0527日\x0528日\x0529日" +
+	"\x0530日\x0531日\x02ь\x02ɦ\x02ɬ\x02ʞ\x02ʇ\x02œ\x04𤋮\x04𢡊\x04𢡄\x04𣏕\x04𥉉" +
+	"\x04𥳐\x04𧻓\x02ff\x02fi\x02fl\x02st\x04մն\x04մե\x04մի\x04վն\x04մխ\x04יִ" +
+	"\x04ײַ\x02ע\x02ה\x02כ\x02ל\x02ם\x02ר\x02ת\x04שׁ\x04שׂ\x06שּׁ\x06שּׂ\x04א" +
+	"ַ\x04אָ\x04אּ\x04בּ\x04גּ\x04דּ\x04הּ\x04וּ\x04זּ\x04טּ\x04יּ\x04ךּ\x04" +
+	"כּ\x04לּ\x04מּ\x04נּ\x04סּ\x04ףּ\x04פּ\x04צּ\x04קּ\x04רּ\x04שּ\x04תּ" +
+	"\x04וֹ\x04בֿ\x04כֿ\x04פֿ\x04אל\x02ٱ\x02ٻ\x02پ\x02ڀ\x02ٺ\x02ٿ\x02ٹ\x02ڤ" +
+	"\x02ڦ\x02ڄ\x02ڃ\x02چ\x02ڇ\x02ڍ\x02ڌ\x02ڎ\x02ڈ\x02ژ\x02ڑ\x02ک\x02گ\x02ڳ" +
+	"\x02ڱ\x02ں\x02ڻ\x02ۀ\x02ہ\x02ھ\x02ے\x02ۓ\x02ڭ\x02ۇ\x02ۆ\x02ۈ\x02ۋ\x02ۅ" +
+	"\x02ۉ\x02ې\x02ى\x04ئا\x04ئە\x04ئو\x04ئۇ\x04ئۆ\x04ئۈ\x04ئې\x04ئى\x02ی\x04" +
+	"ئج\x04ئح\x04ئم\x04ئي\x04بج\x04بح\x04بخ\x04بم\x04بى\x04بي\x04تج\x04تح" +
+	"\x04تخ\x04تم\x04تى\x04تي\x04ثج\x04ثم\x04ثى\x04ثي\x04جح\x04جم\x04حج\x04حم" +
+	"\x04خج\x04خح\x04خم\x04سج\x04سح\x04سخ\x04سم\x04صح\x04صم\x04ضج\x04ضح\x04ضخ" +
+	"\x04ضم\x04طح\x04طم\x04ظم\x04عج\x04عم\x04غج\x04غم\x04فج\x04فح\x04فخ\x04فم" +
+	"\x04فى\x04في\x04قح\x04قم\x04قى\x04قي\x04كا\x04كج\x04كح\x04كخ\x04كل\x04كم" +
+	"\x04كى\x04كي\x04لج\x04لح\x04لخ\x04لم\x04لى\x04لي\x04مج\x04مح\x04مخ\x04مم" +
+	"\x04مى\x04مي\x04نج\x04نح\x04نخ\x04نم\x04نى\x04ني\x04هج\x04هم\x04هى\x04هي" +
+	"\x04يج\x04يح\x04يخ\x04يم\x04يى\x04يي\x04ذٰ\x04رٰ\x04ىٰ\x05 ٌّ\x05 ٍّ\x05" +
+	" َّ\x05 ُّ\x05 ِّ\x05 ّٰ\x04ئر\x04ئز\x04ئن\x04بر\x04بز\x04بن\x04تر\x04تز" +
+	"\x04تن\x04ثر\x04ثز\x04ثن\x04ما\x04نر\x04نز\x04نن\x04ير\x04يز\x04ين\x04ئخ" +
+	"\x04ئه\x04به\x04ته\x04صخ\x04له\x04نه\x04هٰ\x04يه\x04ثه\x04سه\x04شم\x04شه" +
+	"\x06ـَّ\x06ـُّ\x06ـِّ\x04طى\x04طي\x04عى\x04عي\x04غى\x04غي\x04سى\x04سي" +
+	"\x04شى\x04شي\x04حى\x04حي\x04جى\x04جي\x04خى\x04خي\x04صى\x04صي\x04ضى\x04ضي" +
+	"\x04شج\x04شح\x04شخ\x04شر\x04سر\x04صر\x04ضر\x04اً\x06تجم\x06تحج\x06تحم" +
+	"\x06تخم\x06تمج\x06تمح\x06تمخ\x06جمح\x06حمي\x06حمى\x06سحج\x06سجح\x06سجى" +
+	"\x06سمح\x06سمج\x06سمم\x06صحح\x06صمم\x06شحم\x06شجي\x06شمخ\x06شمم\x06ضحى" +
+	"\x06ضخم\x06طمح\x06طمم\x06طمي\x06عجم\x06عمم\x06عمى\x06غمم\x06غمي\x06غمى" +
+	"\x06فخم\x06قمح\x06قمم\x06لحم\x06لحي\x06لحى\x06لجج\x06لخم\x06لمح\x06محج" +
+	"\x06محم\x06محي\x06مجح\x06مجم\x06مخج\x06مخم\x06مجخ\x06همج\x06همم\x06نحم" +
+	"\x06نحى\x06نجم\x06نجى\x06نمي\x06نمى\x06يمم\x06بخي\x06تجي\x06تجى\x06تخي" +
+	"\x06تخى\x06تمي\x06تمى\x06جمي\x06جحى\x06جمى\x06سخى\x06صحي\x06شحي\x06ضحي" +
+	"\x06لجي\x06لمي\x06يحي\x06يجي\x06يمي\x06ممي\x06قمي\x06نحي\x06عمي\x06كمي" +
+	"\x06نجح\x06مخي\x06لجم\x06كمم\x06جحي\x06حجي\x06مجي\x06فمي\x06بحي\x06سخي" +
+	"\x06نجي\x06صلے\x06قلے\x08الله\x08اكبر\x08محمد\x08صلعم\x08رسول\x08عليه" +
+	"\x08وسلم\x06صلى!صلى الله عليه وسلم\x0fجل جلاله\x08ریال\x01,\x01:\x01!" +
+	"\x01?\x01_\x01{\x01}\x01[\x01]\x01#\x01&\x01*\x01-\x01<\x01>\x01\\\x01$" +
+	"\x01%\x01@\x04ـً\x04ـَ\x04ـُ\x04ـِ\x04ـّ\x04ـْ\x02ء\x02آ\x02أ\x02ؤ\x02إ" +
+	"\x02ئ\x02ا\x02ب\x02ة\x02ت\x02ث\x02ج\x02ح\x02خ\x02د\x02ذ\x02ر\x02ز\x02س" +
+	"\x02ش\x02ص\x02ض\x02ط\x02ظ\x02ع\x02غ\x02ف\x02ق\x02ك\x02ل\x02م\x02ن\x02ه" +
+	"\x02و\x02ي\x04لآ\x04لأ\x04لإ\x04لا\x01\x22\x01'\x01/\x01^\x01|\x01~\x02¢" +
+	"\x02£\x02¬\x02¦\x02¥\x08𝅗𝅥\x08𝅘𝅥\x0c𝅘𝅥𝅮\x0c𝅘𝅥𝅯\x0c𝅘𝅥𝅰\x0c𝅘𝅥𝅱\x0c𝅘𝅥𝅲\x08𝆹" +
+	"𝅥\x08𝆺𝅥\x0c𝆹𝅥𝅮\x0c𝆺𝅥𝅮\x0c𝆹𝅥𝅯\x0c𝆺𝅥𝅯\x02ı\x02ȷ\x02α\x02ε\x02ζ\x02η\x02" +
+	"κ\x02λ\x02μ\x02ν\x02ξ\x02ο\x02σ\x02τ\x02υ\x02ψ\x03∇\x03∂\x02ϝ\x02ٮ\x02ڡ" +
+	"\x02ٯ\x020,\x021,\x022,\x023,\x024,\x025,\x026,\x027,\x028,\x029,\x03(a)" +
+	"\x03(b)\x03(c)\x03(d)\x03(e)\x03(f)\x03(g)\x03(h)\x03(i)\x03(j)\x03(k)" +
+	"\x03(l)\x03(m)\x03(n)\x03(o)\x03(p)\x03(q)\x03(r)\x03(s)\x03(t)\x03(u)" +
+	"\x03(v)\x03(w)\x03(x)\x03(y)\x03(z)\x07〔s〕\x02wz\x02hv\x02sd\x03ppv\x02w" +
+	"c\x02mc\x02md\x02mr\x02dj\x06ほか\x06ココ\x03サ\x03手\x03字\x03双\x03デ\x03二\x03多" +
+	"\x03解\x03天\x03交\x03映\x03無\x03料\x03前\x03後\x03再\x03新\x03初\x03終\x03生\x03販" +
+	"\x03声\x03吹\x03演\x03投\x03捕\x03一\x03三\x03遊\x03左\x03中\x03右\x03指\x03走\x03打" +
+	"\x03禁\x03空\x03合\x03満\x03有\x03月\x03申\x03割\x03営\x03配\x09〔本〕\x09〔三〕\x09〔二〕" +
+	"\x09〔安〕\x09〔点〕\x09〔打〕\x09〔盗〕\x09〔勝〕\x09〔敗〕\x03得\x03可\x03丽\x03丸\x03乁\x03你" +
+	"\x03侮\x03侻\x03倂\x03偺\x03備\x03僧\x03像\x03㒞\x03免\x03兔\x03兤\x03具\x03㒹\x03內" +
+	"\x03冗\x03冤\x03仌\x03冬\x03况\x03凵\x03刃\x03㓟\x03刻\x03剆\x03剷\x03㔕\x03勇\x03勉" +
+	"\x03勤\x03勺\x03包\x03匆\x03北\x03卉\x03卑\x03博\x03即\x03卽\x03卿\x03灰\x03及\x03叟" +
+	"\x03叫\x03叱\x03吆\x03咞\x03吸\x03呈\x03周\x03咢\x03哶\x03唐\x03啓\x03啣\x03善\x03喙" +
+	"\x03喫\x03喳\x03嗂\x03圖\x03嘆\x03圗\x03噑\x03噴\x03切\x03壮\x03城\x03埴\x03堍\x03型" +
+	"\x03堲\x03報\x03墬\x03売\x03壷\x03夆\x03夢\x03奢\x03姬\x03娛\x03娧\x03姘\x03婦\x03㛮" +
+	"\x03嬈\x03嬾\x03寃\x03寘\x03寧\x03寳\x03寿\x03将\x03尢\x03㞁\x03屠\x03屮\x03峀\x03岍" +
+	"\x03嵃\x03嵮\x03嵫\x03嵼\x03巡\x03巢\x03㠯\x03巽\x03帨\x03帽\x03幩\x03㡢\x03㡼\x03庰" +
+	"\x03庳\x03庶\x03廊\x03廾\x03舁\x03弢\x03㣇\x03形\x03彫\x03㣣\x03徚\x03忍\x03志\x03忹" +
+	"\x03悁\x03㤺\x03㤜\x03悔\x03惇\x03慈\x03慌\x03慎\x03慺\x03憎\x03憲\x03憤\x03憯\x03懞" +
+	"\x03懲\x03懶\x03成\x03戛\x03扝\x03抱\x03拔\x03捐\x03挽\x03拼\x03捨\x03掃\x03揤\x03搢" +
+	"\x03揅\x03掩\x03㨮\x03摩\x03摾\x03撝\x03摷\x03㩬\x03敏\x03敬\x03旣\x03書\x03晉\x03㬙" +
+	"\x03暑\x03㬈\x03㫤\x03冒\x03冕\x03最\x03暜\x03肭\x03䏙\x03朗\x03望\x03朡\x03杞\x03杓" +
+	"\x03㭉\x03柺\x03枅\x03桒\x03梅\x03梎\x03栟\x03椔\x03㮝\x03楂\x03榣\x03槪\x03檨\x03櫛" +
+	"\x03㰘\x03次\x03歔\x03㱎\x03歲\x03殟\x03殺\x03殻\x03汎\x03沿\x03泍\x03汧\x03洖\x03派" +
+	"\x03海\x03流\x03浩\x03浸\x03涅\x03洴\x03港\x03湮\x03㴳\x03滋\x03滇\x03淹\x03潮\x03濆" +
+	"\x03瀹\x03瀞\x03瀛\x03㶖\x03灊\x03災\x03灷\x03炭\x03煅\x03熜\x03爨\x03爵\x03牐\x03犀" +
+	"\x03犕\x03獺\x03王\x03㺬\x03玥\x03㺸\x03瑇\x03瑜\x03瑱\x03璅\x03瓊\x03㼛\x03甤\x03甾" +
+	"\x03異\x03瘐\x03㿼\x03䀈\x03直\x03眞\x03真\x03睊\x03䀹\x03瞋\x03䁆\x03䂖\x03硎\x03碌" +
+	"\x03磌\x03䃣\x03祖\x03福\x03秫\x03䄯\x03穀\x03穊\x03穏\x03䈂\x03篆\x03築\x03䈧\x03糒" +
+	"\x03䊠\x03糨\x03糣\x03紀\x03絣\x03䌁\x03緇\x03縂\x03繅\x03䌴\x03䍙\x03罺\x03羕\x03翺" +
+	"\x03者\x03聠\x03聰\x03䏕\x03育\x03脃\x03䐋\x03脾\x03媵\x03舄\x03辞\x03䑫\x03芑\x03芋" +
+	"\x03芝\x03劳\x03花\x03芳\x03芽\x03苦\x03若\x03茝\x03荣\x03莭\x03茣\x03莽\x03菧\x03著" +
+	"\x03荓\x03菊\x03菌\x03菜\x03䔫\x03蓱\x03蓳\x03蔖\x03蕤\x03䕝\x03䕡\x03䕫\x03虐\x03虜" +
+	"\x03虧\x03虩\x03蚩\x03蚈\x03蜎\x03蛢\x03蝹\x03蜨\x03蝫\x03螆\x03蟡\x03蠁\x03䗹\x03衠" +
+	"\x03衣\x03裗\x03裞\x03䘵\x03裺\x03㒻\x03䚾\x03䛇\x03誠\x03諭\x03變\x03豕\x03貫\x03賁" +
+	"\x03贛\x03起\x03跋\x03趼\x03跰\x03軔\x03輸\x03邔\x03郱\x03鄑\x03鄛\x03鈸\x03鋗\x03鋘" +
+	"\x03鉼\x03鏹\x03鐕\x03開\x03䦕\x03閷\x03䧦\x03雃\x03嶲\x03霣\x03䩮\x03䩶\x03韠\x03䪲" +
+	"\x03頋\x03頩\x03飢\x03䬳\x03餩\x03馧\x03駂\x03駾\x03䯎\x03鬒\x03鱀\x03鳽\x03䳎\x03䳭" +
+	"\x03鵧\x03䳸\x03麻\x03䵖\x03黹\x03黾\x03鼅\x03鼏\x03鼖\x03鼻"
+
+var xorData string = "" + // Size: 4862 bytes
+	"\x02\x0c\x09\x02\xb0\xec\x02\xad\xd8\x02\xad\xd9\x02\x06\x07\x02\x0f\x12" +
+	"\x02\x0f\x1f\x02\x0f\x1d\x02\x01\x13\x02\x0f\x16\x02\x0f\x0b\x02\x0f3" +
+	"\x02\x0f7\x02\x0f?\x02\x0f/\x02\x0f*\x02\x0c&\x02\x0c*\x02\x0c;\x02\x0c9" +
+	"\x02\x0c%\x02\xab\xed\x02\xab\xe2\x02\xab\xe3\x02\xa9\xe0\x02\xa9\xe1" +
+	"\x02\xa9\xe6\x02\xa3\xcb\x02\xa3\xc8\x02\xa3\xc9\x02\x01#\x02\x01\x08" +
+	"\x02\x0e>\x02\x0e'\x02\x0f\x03\x02\x03\x0d\x02\x03\x09\x02\x03\x17\x02" +
+	"\x03\x0e\x02\x02\x03\x02\x011\x02\x01\x00\x02\x01\x10\x02\x03<\x02\x07" +
+	"\x0d\x02\x02\x0c\x02\x0c0\x02\x01\x03\x02\x01\x01\x02\x01 \x02\x01\x22" +
+	"\x02\x01)\x02\x01\x0a\x02\x01\x0c\x02\x02\x06\x02\x02\x02\x02\x03\x10" +
+	"\x03\x037 \x03\x0b+\x03\x021\x00\x02\x01\x04\x02\x01\x02\x02\x019\x02" +
+	"\x03\x1c\x02\x02$\x03\x80p$\x02\x03:\x02\x03\x0a\x03\xc1r.\x03\xc1r,\x03" +
+	"\xc1r\x02\x02\x02:\x02\x02>\x02\x02,\x02\x02\x10\x02\x02\x00\x03\xc1s<" +
+	"\x03\xc1s*\x03\xc2L$\x03\xc2L;\x02\x09)\x02\x0a\x19\x03\x83\xab\xe3\x03" +
+	"\x83\xab\xf2\x03 4\xe0\x03\x81\xab\xea\x03\x81\xab\xf3\x03 4\xef\x03\x96" +
+	"\xe1\xcd\x03\x84\xe5\xc3\x02\x0d\x11\x03\x8b\xec\xcb\x03\x94\xec\xcf\x03" +
+	"\x9a\xec\xc2\x03\x8b\xec\xdb\x03\x94\xec\xdf\x03\x9a\xec\xd2\x03\x01\x0c" +
+	"!\x03\x01\x0c#\x03ʠ\x9d\x03ʣ\x9c\x03ʢ\x9f\x03ʥ\x9e\x03ʤ\x91\x03ʧ\x90\x03" +
+	"ʦ\x93\x03ʩ\x92\x03ʨ\x95\x03\xca\xf3\xb5\x03\xca\xf0\xb4\x03\xca\xf1\xb7" +
+	"\x03\xca\xf6\xb6\x03\xca\xf7\x89\x03\xca\xf4\x88\x03\xca\xf5\x8b\x03\xca" +
+	"\xfa\x8a\x03\xca\xfb\x8d\x03\xca\xf8\x8c\x03\xca\xf9\x8f\x03\xca\xfe\x8e" +
+	"\x03\xca\xff\x81\x03\xca\xfc\x80\x03\xca\xfd\x83\x03\xca\xe2\x82\x03\xca" +
+	"\xe3\x85\x03\xca\xe0\x84\x03\xca\xe1\x87\x03\xca\xe6\x86\x03\xca\xe7\x99" +
+	"\x03\xca\xe4\x98\x03\xca\xe5\x9b\x03\xca\xea\x9a\x03\xca\xeb\x9d\x03\xca" +
+	"\xe8\x9c\x03ؓ\x89\x03ߔ\x8b\x02\x010\x03\x03\x04\x1e\x03\x04\x15\x12\x03" +
+	"\x0b\x05,\x03\x06\x04\x00\x03\x06\x04)\x03\x06\x044\x03\x06\x04<\x03\x06" +
+	"\x05\x1d\x03\x06\x06\x00\x03\x06\x06\x0a\x03\x06\x06'\x03\x06\x062\x03" +
+	"\x0786\x03\x079/\x03\x079 \x03\x07:\x0e\x03\x07:\x1b\x03\x07:%\x03\x07;/" +
+	"\x03\x07;%\x03\x074\x11\x03\x076\x09\x03\x077*\x03\x070\x01\x03\x070\x0f" +
+	"\x03\x070.\x03\x071\x16\x03\x071\x04\x03\x0710\x03\x072\x18\x03\x072-" +
+	"\x03\x073\x14\x03\x073>\x03\x07'\x09\x03\x07 \x00\x03\x07\x1f\x0b\x03" +
+	"\x07\x18#\x03\x07\x18(\x03\x07\x186\x03\x07\x18\x03\x03\x07\x19\x16\x03" +
+	"\x07\x116\x03\x07\x12'\x03\x07\x13\x10\x03\x07\x0c&\x03\x07\x0c\x08\x03" +
+	"\x07\x0c\x13\x03\x07\x0d\x02\x03\x07\x0d\x1c\x03\x07\x0b5\x03\x07\x0b" +
+	"\x0a\x03\x07\x0b\x01\x03\x07\x0b\x0f\x03\x07\x05\x00\x03\x07\x05\x09\x03" +
+	"\x07\x05\x0b\x03\x07\x07\x01\x03\x07\x07\x08\x03\x07\x00<\x03\x07\x00+" +
+	"\x03\x07\x01)\x03\x07\x01\x1b\x03\x07\x01\x08\x03\x07\x03?\x03\x0445\x03" +
+	"\x044\x08\x03\x0454\x03\x04)/\x03\x04)5\x03\x04+\x05\x03\x04+\x14\x03" +
+	"\x04+ \x03\x04+<\x03\x04*&\x03\x04*\x22\x03\x04&8\x03\x04!\x01\x03\x04!" +
+	"\x22\x03\x04\x11+\x03\x04\x10.\x03\x04\x104\x03\x04\x13=\x03\x04\x12\x04" +
+	"\x03\x04\x12\x0a\x03\x04\x0d\x1d\x03\x04\x0d\x07\x03\x04\x0d \x03\x05<>" +
+	"\x03\x055<\x03\x055!\x03\x055#\x03\x055&\x03\x054\x1d\x03\x054\x02\x03" +
+	"\x054\x07\x03\x0571\x03\x053\x1a\x03\x053\x16\x03\x05.<\x03\x05.\x07\x03" +
+	"\x05):\x03\x05)<\x03\x05)\x0c\x03\x05)\x15\x03\x05+-\x03\x05+5\x03\x05$" +
+	"\x1e\x03\x05$\x14\x03\x05'\x04\x03\x05'\x14\x03\x05&\x02\x03\x05\x226" +
+	"\x03\x05\x22\x0c\x03\x05\x22\x1c\x03\x05\x19\x0a\x03\x05\x1b\x09\x03\x05" +
+	"\x1b\x0c\x03\x05\x14\x07\x03\x05\x16?\x03\x05\x16\x0c\x03\x05\x0c\x05" +
+	"\x03\x05\x0e\x0f\x03\x05\x01\x0e\x03\x05\x00(\x03\x05\x030\x03\x05\x03" +
+	"\x06\x03\x0a==\x03\x0a=1\x03\x0a=,\x03\x0a=\x0c\x03\x0a??\x03\x0a<\x08" +
+	"\x03\x0a9!\x03\x0a9)\x03\x0a97\x03\x0a99\x03\x0a6\x0a\x03\x0a6\x1c\x03" +
+	"\x0a6\x17\x03\x0a7'\x03\x0a78\x03\x0a73\x03\x0a'\x01\x03\x0a'&\x03\x0a" +
+	"\x1f\x0e\x03\x0a\x1f\x03\x03\x0a\x1f3\x03\x0a\x1b/\x03\x0a\x18\x19\x03" +
+	"\x0a\x19\x01\x03\x0a\x16\x14\x03\x0a\x0e\x22\x03\x0a\x0f\x10\x03\x0a\x0f" +
+	"\x02\x03\x0a\x0f \x03\x0a\x0c\x04\x03\x0a\x0b>\x03\x0a\x0b+\x03\x0a\x08/" +
+	"\x03\x0a\x046\x03\x0a\x05\x14\x03\x0a\x00\x04\x03\x0a\x00\x10\x03\x0a" +
+	"\x00\x14\x03\x0b<3\x03\x0b;*\x03\x0b9\x22\x03\x0b9)\x03\x0b97\x03\x0b+" +
+	"\x10\x03\x0b((\x03\x0b&5\x03\x0b$\x1c\x03\x0b$\x12\x03\x0b%\x04\x03\x0b#" +
+	"<\x03\x0b#0\x03\x0b#\x0d\x03\x0b#\x19\x03\x0b!:\x03\x0b!\x1f\x03\x0b!" +
+	"\x00\x03\x0b\x1e5\x03\x0b\x1c\x1d\x03\x0b\x1d-\x03\x0b\x1d(\x03\x0b\x18." +
+	"\x03\x0b\x18 \x03\x0b\x18\x16\x03\x0b\x14\x13\x03\x0b\x15$\x03\x0b\x15" +
+	"\x22\x03\x0b\x12\x1b\x03\x0b\x12\x10\x03\x0b\x132\x03\x0b\x13=\x03\x0b" +
+	"\x12\x18\x03\x0b\x0c&\x03\x0b\x061\x03\x0b\x06:\x03\x0b\x05#\x03\x0b\x05" +
+	"<\x03\x0b\x04\x0b\x03\x0b\x04\x04\x03\x0b\x04\x1b\x03\x0b\x042\x03\x0b" +
+	"\x041\x03\x0b\x03\x03\x03\x0b\x03\x1d\x03\x0b\x03/\x03\x0b\x03+\x03\x0b" +
+	"\x02\x1b\x03\x0b\x02\x00\x03\x0b\x01\x1e\x03\x0b\x01\x08\x03\x0b\x015" +
+	"\x03\x06\x0d9\x03\x06\x0d=\x03\x06\x0d?\x03\x02\x001\x03\x02\x003\x03" +
+	"\x02\x02\x19\x03\x02\x006\x03\x02\x02\x1b\x03\x02\x004\x03\x02\x00<\x03" +
+	"\x02\x02\x0a\x03\x02\x02\x0e\x03\x02\x01\x1a\x03\x02\x01\x07\x03\x02\x01" +
+	"\x05\x03\x02\x01\x0b\x03\x02\x01%\x03\x02\x01\x0c\x03\x02\x01\x04\x03" +
+	"\x02\x01\x1c\x03\x02\x00.\x03\x02\x002\x03\x02\x00>\x03\x02\x00\x12\x03" +
+	"\x02\x00\x16\x03\x02\x011\x03\x02\x013\x03\x02\x02 \x03\x02\x02%\x03\x02" +
+	"\x02$\x03\x02\x028\x03\x02\x02;\x03\x02\x024\x03\x02\x012\x03\x02\x022" +
+	"\x03\x02\x02/\x03\x02\x01,\x03\x02\x01\x13\x03\x02\x01\x16\x03\x02\x01" +
+	"\x11\x03\x02\x01\x1e\x03\x02\x01\x15\x03\x02\x01\x17\x03\x02\x01\x0f\x03" +
+	"\x02\x01\x08\x03\x02\x00?\x03\x02\x03\x07\x03\x02\x03\x0d\x03\x02\x03" +
+	"\x13\x03\x02\x03\x1d\x03\x02\x03\x1f\x03\x02\x00\x03\x03\x02\x00\x0d\x03" +
+	"\x02\x00\x01\x03\x02\x00\x1b\x03\x02\x00\x19\x03\x02\x00\x18\x03\x02\x00" +
+	"\x13\x03\x02\x00/\x03\x07>\x12\x03\x07<\x1f\x03\x07>\x1d\x03\x06\x1d\x0e" +
+	"\x03\x07>\x1c\x03\x07>:\x03\x07>\x13\x03\x04\x12+\x03\x07?\x03\x03\x07>" +
+	"\x02\x03\x06\x224\x03\x06\x1a.\x03\x07<%\x03\x06\x1c\x0b\x03\x0609\x03" +
+	"\x05\x1f\x01\x03\x04'\x08\x03\x93\xfd\xf5\x03\x02\x0d \x03\x02\x0d#\x03" +
+	"\x02\x0d!\x03\x02\x0d&\x03\x02\x0d\x22\x03\x02\x0d/\x03\x02\x0d,\x03\x02" +
+	"\x0d$\x03\x02\x0d'\x03\x02\x0d%\x03\x02\x0d;\x03\x02\x0d=\x03\x02\x0d?" +
+	"\x03\x099.\x03\x08\x0b7\x03\x08\x02\x14\x03\x08\x14\x0d\x03\x08.:\x03" +
+	"\x089'\x03\x0f\x0b\x18\x03\x0f\x1c1\x03\x0f\x17&\x03\x0f9\x1f\x03\x0f0" +
+	"\x0c\x03\x0e\x0a9\x03\x0e\x056\x03\x0e\x1c#\x03\x0f\x13\x0e\x03\x072\x00" +
+	"\x03\x070\x0d\x03\x072\x0b\x03\x06\x11\x18\x03\x070\x10\x03\x06\x0f(\x03" +
+	"\x072\x05\x03\x06\x0f,\x03\x073\x15\x03\x06\x07\x08\x03\x05\x16\x02\x03" +
+	"\x04\x0b \x03\x05:8\x03\x05\x16%\x03\x0a\x0d\x1f\x03\x06\x16\x10\x03\x05" +
+	"\x1d5\x03\x05*;\x03\x05\x16\x1b\x03\x04.-\x03\x06\x1a\x19\x03\x04\x03," +
+	"\x03\x0b87\x03\x04/\x0a\x03\x06\x00,\x03\x04-\x01\x03\x04\x1e-\x03\x06/(" +
+	"\x03\x0a\x0b5\x03\x06\x0e7\x03\x06\x07.\x03\x0597\x03\x0a*%\x03\x0760" +
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+	"\x03\x07 $\x03\x07 '\x03\x078\x08\x03\x07\x0d0\x03\x07\x0f7\x03\x07\x05#" +
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+	"\x06-\x1d\x03\x06\x223\x03\x062:\x03\x060$\x03\x066\x1e\x03\x064\x12\x03" +
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+	"\x0d8%\x03\x0d8!\x03\x0c8-\x03\x0c8/\x03\x0c8+\x03\x0c87\x03\x0c85\x03" +
+	"\x0c9\x09\x03\x0c9\x0d\x03\x0c9\x0f\x03\x0c9\x0b\x03\xcfu\x0c\x03\xcfu" +
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+	"\xcf`>\x03\xcf`9\x03\xcf`8\x03\xcf`7\x03\xcf`*\x03\xcf`-\x03\xcf`,\x03" +
+	"\x0d\x1b\x1a\x03\x0d\x1b&\x03\x0c=.\x03\x0c=%\x03\x0c>\x1e\x03\x0c>\x14" +
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+	"\x04\x03\x0c?\x05\x03\x0c<?\x03\x0c=\x00\x03\x0c=\x06\x03\x0c=\x05\x03" +
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+	"\x03\x0c=2\x03\x0c=6\x03\x0c<\x07\x03\x0c<\x05\x03\x0e:!\x03\x0e:#\x03" +
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+	"\x03\x0e:4\x03\x0e:'\x03\x0e:-\x03\x0e:%\x03\x0e:?\x03\x0e:=\x03\x0e:)" +
+	"\x03\x0e:/\x03\xcfs'\x03\x0d=\x0f\x03\x0d+*\x03\x0d99\x03\x0d9;\x03\x0d9" +
+	"?\x03\x0d)\x0d\x03\x0d(%\x02\x01\x18\x02\x01(\x02\x01\x1e\x03\x0f$!\x03" +
+	"\x0f87\x03\x0f4\x0e\x03\x0f5\x1d\x03\x06'\x03\x03\x0f\x08\x18\x03\x0f" +
+	"\x0d\x1b\x03\x0e2=\x03\x0e;\x08\x03\x0e:\x0b\x03\x0e\x06$\x03\x0e\x0d)" +
+	"\x03\x0e\x16\x1f\x03\x0e\x16\x1b\x03\x0d$\x0a\x03\x05,\x1d\x03\x0d. \x03" +
+	"\x0d.#\x03\x0c(/\x03\x09%\x02\x03\x0d90\x03\x0d\x0e4\x03\x0d\x0d\x0f\x03" +
+	"\x0c#\x00\x03\x0c,\x1e\x03\x0c2\x0e\x03\x0c\x01\x17\x03\x0c\x09:\x03\x0e" +
+	"\x173\x03\x0c\x08\x03\x03\x0c\x11\x07\x03\x0c\x10\x18\x03\x0c\x1f\x1c" +
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+	"\x1a\x03\x0b\x1a\x04\x03\x0a%9\x03\x0a&2\x03\x0a&0\x03\x0a!\x1a\x03\x0a!" +
+	"7\x03\x0a5\x10\x03\x0a=4\x03\x0a?\x0e\x03\x0a>\x10\x03\x0a\x00 \x03\x0a" +
+	"\x0f:\x03\x0a\x0f9\x03\x0a\x0b\x0a\x03\x0a\x17%\x03\x0a\x1b-\x03\x09-" +
+	"\x1a\x03\x09,4\x03\x09.,\x03\x09)\x09\x03\x096!\x03\x091\x1f\x03\x093" +
+	"\x16\x03\x0c+\x1f\x03\x098 \x03\x098=\x03\x0c(\x1a\x03\x0c(\x16\x03\x09" +
+	"\x0a+\x03\x09\x16\x12\x03\x09\x13\x0e\x03\x09\x153\x03\x08)!\x03\x09\x1a" +
+	"\x01\x03\x09\x18\x01\x03\x08%#\x03\x08>\x22\x03\x08\x05%\x03\x08\x02*" +
+	"\x03\x08\x15;\x03\x08\x1b7\x03\x0f\x07\x1d\x03\x0f\x04\x03\x03\x070\x0c" +
+	"\x03\x07;\x0b\x03\x07\x08\x17\x03\x07\x12\x06\x03\x06/-\x03\x0671\x03" +
+	"\x065+\x03\x06>7\x03\x06\x049\x03\x05+\x1e\x03\x05,\x17\x03\x05 \x1d\x03" +
+	"\x05\x22\x05\x03\x050\x1d"
+
+// lookup returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *idnaTrie) lookup(s []byte) (v uint16, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < 0x80: // is ASCII
+		return idnaValues[c0], 1
+	case c0 < 0xC2:
+		return 0, 1 // Illegal UTF-8: not a starter, not ASCII.
+	case c0 < 0xE0: // 2-byte UTF-8
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := idnaIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c1), 2
+	case c0 < 0xF0: // 3-byte UTF-8
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := idnaIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = idnaIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c2), 3
+	case c0 < 0xF8: // 4-byte UTF-8
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := idnaIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = idnaIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		o = uint32(i)<<6 + uint32(c2)
+		i = idnaIndex[o]
+		c3 := s[3]
+		if c3 < 0x80 || 0xC0 <= c3 {
+			return 0, 3 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must start with a full and valid UTF-8 encoded rune.
+func (t *idnaTrie) lookupUnsafe(s []byte) uint16 {
+	c0 := s[0]
+	if c0 < 0x80 { // is ASCII
+		return idnaValues[c0]
+	}
+	i := idnaIndex[c0]
+	if c0 < 0xE0 { // 2-byte UTF-8
+		return t.lookupValue(uint32(i), s[1])
+	}
+	i = idnaIndex[uint32(i)<<6+uint32(s[1])]
+	if c0 < 0xF0 { // 3-byte UTF-8
+		return t.lookupValue(uint32(i), s[2])
+	}
+	i = idnaIndex[uint32(i)<<6+uint32(s[2])]
+	if c0 < 0xF8 { // 4-byte UTF-8
+		return t.lookupValue(uint32(i), s[3])
+	}
+	return 0
+}
+
+// lookupString returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *idnaTrie) lookupString(s string) (v uint16, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < 0x80: // is ASCII
+		return idnaValues[c0], 1
+	case c0 < 0xC2:
+		return 0, 1 // Illegal UTF-8: not a starter, not ASCII.
+	case c0 < 0xE0: // 2-byte UTF-8
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := idnaIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c1), 2
+	case c0 < 0xF0: // 3-byte UTF-8
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := idnaIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = idnaIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c2), 3
+	case c0 < 0xF8: // 4-byte UTF-8
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := idnaIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = idnaIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		o = uint32(i)<<6 + uint32(c2)
+		i = idnaIndex[o]
+		c3 := s[3]
+		if c3 < 0x80 || 0xC0 <= c3 {
+			return 0, 3 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupStringUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must start with a full and valid UTF-8 encoded rune.
+func (t *idnaTrie) lookupStringUnsafe(s string) uint16 {
+	c0 := s[0]
+	if c0 < 0x80 { // is ASCII
+		return idnaValues[c0]
+	}
+	i := idnaIndex[c0]
+	if c0 < 0xE0 { // 2-byte UTF-8
+		return t.lookupValue(uint32(i), s[1])
+	}
+	i = idnaIndex[uint32(i)<<6+uint32(s[1])]
+	if c0 < 0xF0 { // 3-byte UTF-8
+		return t.lookupValue(uint32(i), s[2])
+	}
+	i = idnaIndex[uint32(i)<<6+uint32(s[2])]
+	if c0 < 0xF8 { // 4-byte UTF-8
+		return t.lookupValue(uint32(i), s[3])
+	}
+	return 0
+}
+
+// idnaTrie. Total size: 29708 bytes (29.01 KiB). Checksum: c3ecc76d8fffa6e6.
+type idnaTrie struct{}
+
+func newIdnaTrie(i int) *idnaTrie {
+	return &idnaTrie{}
+}
+
+// lookupValue determines the type of block n and looks up the value for b.
+func (t *idnaTrie) lookupValue(n uint32, b byte) uint16 {
+	switch {
+	case n < 125:
+		return uint16(idnaValues[n<<6+uint32(b)])
+	default:
+		n -= 125
+		return uint16(idnaSparse.lookup(n, b))
+	}
+}
+
+// idnaValues: 127 blocks, 8128 entries, 16256 bytes
+// The third block is the zero block.
+var idnaValues = [8128]uint16{
+	// Block 0x0, offset 0x0
+	0x00: 0x0080, 0x01: 0x0080, 0x02: 0x0080, 0x03: 0x0080, 0x04: 0x0080, 0x05: 0x0080,
+	0x06: 0x0080, 0x07: 0x0080, 0x08: 0x0080, 0x09: 0x0080, 0x0a: 0x0080, 0x0b: 0x0080,
+	0x0c: 0x0080, 0x0d: 0x0080, 0x0e: 0x0080, 0x0f: 0x0080, 0x10: 0x0080, 0x11: 0x0080,
+	0x12: 0x0080, 0x13: 0x0080, 0x14: 0x0080, 0x15: 0x0080, 0x16: 0x0080, 0x17: 0x0080,
+	0x18: 0x0080, 0x19: 0x0080, 0x1a: 0x0080, 0x1b: 0x0080, 0x1c: 0x0080, 0x1d: 0x0080,
+	0x1e: 0x0080, 0x1f: 0x0080, 0x20: 0x0080, 0x21: 0x0080, 0x22: 0x0080, 0x23: 0x0080,
+	0x24: 0x0080, 0x25: 0x0080, 0x26: 0x0080, 0x27: 0x0080, 0x28: 0x0080, 0x29: 0x0080,
+	0x2a: 0x0080, 0x2b: 0x0080, 0x2c: 0x0080, 0x2d: 0x0008, 0x2e: 0x0008, 0x2f: 0x0080,
+	0x30: 0x0008, 0x31: 0x0008, 0x32: 0x0008, 0x33: 0x0008, 0x34: 0x0008, 0x35: 0x0008,
+	0x36: 0x0008, 0x37: 0x0008, 0x38: 0x0008, 0x39: 0x0008, 0x3a: 0x0080, 0x3b: 0x0080,
+	0x3c: 0x0080, 0x3d: 0x0080, 0x3e: 0x0080, 0x3f: 0x0080,
+	// Block 0x1, offset 0x40
+	0x40: 0x0080, 0x41: 0xe105, 0x42: 0xe105, 0x43: 0xe105, 0x44: 0xe105, 0x45: 0xe105,
+	0x46: 0xe105, 0x47: 0xe105, 0x48: 0xe105, 0x49: 0xe105, 0x4a: 0xe105, 0x4b: 0xe105,
+	0x4c: 0xe105, 0x4d: 0xe105, 0x4e: 0xe105, 0x4f: 0xe105, 0x50: 0xe105, 0x51: 0xe105,
+	0x52: 0xe105, 0x53: 0xe105, 0x54: 0xe105, 0x55: 0xe105, 0x56: 0xe105, 0x57: 0xe105,
+	0x58: 0xe105, 0x59: 0xe105, 0x5a: 0xe105, 0x5b: 0x0080, 0x5c: 0x0080, 0x5d: 0x0080,
+	0x5e: 0x0080, 0x5f: 0x0080, 0x60: 0x0080, 0x61: 0x0008, 0x62: 0x0008, 0x63: 0x0008,
+	0x64: 0x0008, 0x65: 0x0008, 0x66: 0x0008, 0x67: 0x0008, 0x68: 0x0008, 0x69: 0x0008,
+	0x6a: 0x0008, 0x6b: 0x0008, 0x6c: 0x0008, 0x6d: 0x0008, 0x6e: 0x0008, 0x6f: 0x0008,
+	0x70: 0x0008, 0x71: 0x0008, 0x72: 0x0008, 0x73: 0x0008, 0x74: 0x0008, 0x75: 0x0008,
+	0x76: 0x0008, 0x77: 0x0008, 0x78: 0x0008, 0x79: 0x0008, 0x7a: 0x0008, 0x7b: 0x0080,
+	0x7c: 0x0080, 0x7d: 0x0080, 0x7e: 0x0080, 0x7f: 0x0080,
+	// Block 0x2, offset 0x80
+	// Block 0x3, offset 0xc0
+	0xc0: 0x0040, 0xc1: 0x0040, 0xc2: 0x0040, 0xc3: 0x0040, 0xc4: 0x0040, 0xc5: 0x0040,
+	0xc6: 0x0040, 0xc7: 0x0040, 0xc8: 0x0040, 0xc9: 0x0040, 0xca: 0x0040, 0xcb: 0x0040,
+	0xcc: 0x0040, 0xcd: 0x0040, 0xce: 0x0040, 0xcf: 0x0040, 0xd0: 0x0040, 0xd1: 0x0040,
+	0xd2: 0x0040, 0xd3: 0x0040, 0xd4: 0x0040, 0xd5: 0x0040, 0xd6: 0x0040, 0xd7: 0x0040,
+	0xd8: 0x0040, 0xd9: 0x0040, 0xda: 0x0040, 0xdb: 0x0040, 0xdc: 0x0040, 0xdd: 0x0040,
+	0xde: 0x0040, 0xdf: 0x0040, 0xe0: 0x000a, 0xe1: 0x0018, 0xe2: 0x0018, 0xe3: 0x0018,
+	0xe4: 0x0018, 0xe5: 0x0018, 0xe6: 0x0018, 0xe7: 0x0018, 0xe8: 0x001a, 0xe9: 0x0018,
+	0xea: 0x0039, 0xeb: 0x0018, 0xec: 0x0018, 0xed: 0x03c0, 0xee: 0x0018, 0xef: 0x004a,
+	0xf0: 0x0018, 0xf1: 0x0018, 0xf2: 0x0069, 0xf3: 0x0079, 0xf4: 0x008a, 0xf5: 0x0005,
+	0xf6: 0x0018, 0xf7: 0x0008, 0xf8: 0x00aa, 0xf9: 0x00c9, 0xfa: 0x00d9, 0xfb: 0x0018,
+	0xfc: 0x00e9, 0xfd: 0x0119, 0xfe: 0x0149, 0xff: 0x0018,
+	// Block 0x4, offset 0x100
+	0x100: 0xe00d, 0x101: 0x0008, 0x102: 0xe00d, 0x103: 0x0008, 0x104: 0xe00d, 0x105: 0x0008,
+	0x106: 0xe00d, 0x107: 0x0008, 0x108: 0xe00d, 0x109: 0x0008, 0x10a: 0xe00d, 0x10b: 0x0008,
+	0x10c: 0xe00d, 0x10d: 0x0008, 0x10e: 0xe00d, 0x10f: 0x0008, 0x110: 0xe00d, 0x111: 0x0008,
+	0x112: 0xe00d, 0x113: 0x0008, 0x114: 0xe00d, 0x115: 0x0008, 0x116: 0xe00d, 0x117: 0x0008,
+	0x118: 0xe00d, 0x119: 0x0008, 0x11a: 0xe00d, 0x11b: 0x0008, 0x11c: 0xe00d, 0x11d: 0x0008,
+	0x11e: 0xe00d, 0x11f: 0x0008, 0x120: 0xe00d, 0x121: 0x0008, 0x122: 0xe00d, 0x123: 0x0008,
+	0x124: 0xe00d, 0x125: 0x0008, 0x126: 0xe00d, 0x127: 0x0008, 0x128: 0xe00d, 0x129: 0x0008,
+	0x12a: 0xe00d, 0x12b: 0x0008, 0x12c: 0xe00d, 0x12d: 0x0008, 0x12e: 0xe00d, 0x12f: 0x0008,
+	0x130: 0x0179, 0x131: 0x0008, 0x132: 0x0035, 0x133: 0x004d, 0x134: 0xe00d, 0x135: 0x0008,
+	0x136: 0xe00d, 0x137: 0x0008, 0x138: 0x0008, 0x139: 0xe01d, 0x13a: 0x0008, 0x13b: 0xe03d,
+	0x13c: 0x0008, 0x13d: 0xe01d, 0x13e: 0x0008, 0x13f: 0x0199,
+	// Block 0x5, offset 0x140
+	0x140: 0x0199, 0x141: 0xe01d, 0x142: 0x0008, 0x143: 0xe03d, 0x144: 0x0008, 0x145: 0xe01d,
+	0x146: 0x0008, 0x147: 0xe07d, 0x148: 0x0008, 0x149: 0x01b9, 0x14a: 0xe00d, 0x14b: 0x0008,
+	0x14c: 0xe00d, 0x14d: 0x0008, 0x14e: 0xe00d, 0x14f: 0x0008, 0x150: 0xe00d, 0x151: 0x0008,
+	0x152: 0xe00d, 0x153: 0x0008, 0x154: 0xe00d, 0x155: 0x0008, 0x156: 0xe00d, 0x157: 0x0008,
+	0x158: 0xe00d, 0x159: 0x0008, 0x15a: 0xe00d, 0x15b: 0x0008, 0x15c: 0xe00d, 0x15d: 0x0008,
+	0x15e: 0xe00d, 0x15f: 0x0008, 0x160: 0xe00d, 0x161: 0x0008, 0x162: 0xe00d, 0x163: 0x0008,
+	0x164: 0xe00d, 0x165: 0x0008, 0x166: 0xe00d, 0x167: 0x0008, 0x168: 0xe00d, 0x169: 0x0008,
+	0x16a: 0xe00d, 0x16b: 0x0008, 0x16c: 0xe00d, 0x16d: 0x0008, 0x16e: 0xe00d, 0x16f: 0x0008,
+	0x170: 0xe00d, 0x171: 0x0008, 0x172: 0xe00d, 0x173: 0x0008, 0x174: 0xe00d, 0x175: 0x0008,
+	0x176: 0xe00d, 0x177: 0x0008, 0x178: 0x0065, 0x179: 0xe01d, 0x17a: 0x0008, 0x17b: 0xe03d,
+	0x17c: 0x0008, 0x17d: 0xe01d, 0x17e: 0x0008, 0x17f: 0x01d9,
+	// Block 0x6, offset 0x180
+	0x180: 0x0008, 0x181: 0x007d, 0x182: 0xe00d, 0x183: 0x0008, 0x184: 0xe00d, 0x185: 0x0008,
+	0x186: 0x007d, 0x187: 0xe07d, 0x188: 0x0008, 0x189: 0x0095, 0x18a: 0x00ad, 0x18b: 0xe03d,
+	0x18c: 0x0008, 0x18d: 0x0008, 0x18e: 0x00c5, 0x18f: 0x00dd, 0x190: 0x00f5, 0x191: 0xe01d,
+	0x192: 0x0008, 0x193: 0x010d, 0x194: 0x0125, 0x195: 0x0008, 0x196: 0x013d, 0x197: 0x013d,
+	0x198: 0xe00d, 0x199: 0x0008, 0x19a: 0x0008, 0x19b: 0x0008, 0x19c: 0x010d, 0x19d: 0x0155,
+	0x19e: 0x0008, 0x19f: 0x016d, 0x1a0: 0xe00d, 0x1a1: 0x0008, 0x1a2: 0xe00d, 0x1a3: 0x0008,
+	0x1a4: 0xe00d, 0x1a5: 0x0008, 0x1a6: 0x0185, 0x1a7: 0xe07d, 0x1a8: 0x0008, 0x1a9: 0x019d,
+	0x1aa: 0x0008, 0x1ab: 0x0008, 0x1ac: 0xe00d, 0x1ad: 0x0008, 0x1ae: 0x0185, 0x1af: 0xe0fd,
+	0x1b0: 0x0008, 0x1b1: 0x01b5, 0x1b2: 0x01cd, 0x1b3: 0xe03d, 0x1b4: 0x0008, 0x1b5: 0xe01d,
+	0x1b6: 0x0008, 0x1b7: 0x01e5, 0x1b8: 0xe00d, 0x1b9: 0x0008, 0x1ba: 0x0008, 0x1bb: 0x0008,
+	0x1bc: 0xe00d, 0x1bd: 0x0008, 0x1be: 0x0008, 0x1bf: 0x0008,
+	// Block 0x7, offset 0x1c0
+	0x1c0: 0x0008, 0x1c1: 0x0008, 0x1c2: 0x0008, 0x1c3: 0x0008, 0x1c4: 0x01e9, 0x1c5: 0x01e9,
+	0x1c6: 0x01e9, 0x1c7: 0x01fd, 0x1c8: 0x0215, 0x1c9: 0x022d, 0x1ca: 0x0245, 0x1cb: 0x025d,
+	0x1cc: 0x0275, 0x1cd: 0xe01d, 0x1ce: 0x0008, 0x1cf: 0xe0fd, 0x1d0: 0x0008, 0x1d1: 0xe01d,
+	0x1d2: 0x0008, 0x1d3: 0xe03d, 0x1d4: 0x0008, 0x1d5: 0xe01d, 0x1d6: 0x0008, 0x1d7: 0xe07d,
+	0x1d8: 0x0008, 0x1d9: 0xe01d, 0x1da: 0x0008, 0x1db: 0xe03d, 0x1dc: 0x0008, 0x1dd: 0x0008,
+	0x1de: 0xe00d, 0x1df: 0x0008, 0x1e0: 0xe00d, 0x1e1: 0x0008, 0x1e2: 0xe00d, 0x1e3: 0x0008,
+	0x1e4: 0xe00d, 0x1e5: 0x0008, 0x1e6: 0xe00d, 0x1e7: 0x0008, 0x1e8: 0xe00d, 0x1e9: 0x0008,
+	0x1ea: 0xe00d, 0x1eb: 0x0008, 0x1ec: 0xe00d, 0x1ed: 0x0008, 0x1ee: 0xe00d, 0x1ef: 0x0008,
+	0x1f0: 0x0008, 0x1f1: 0x028d, 0x1f2: 0x02a5, 0x1f3: 0x02bd, 0x1f4: 0xe00d, 0x1f5: 0x0008,
+	0x1f6: 0x02d5, 0x1f7: 0x02ed, 0x1f8: 0xe00d, 0x1f9: 0x0008, 0x1fa: 0xe00d, 0x1fb: 0x0008,
+	0x1fc: 0xe00d, 0x1fd: 0x0008, 0x1fe: 0xe00d, 0x1ff: 0x0008,
+	// Block 0x8, offset 0x200
+	0x200: 0xe00d, 0x201: 0x0008, 0x202: 0xe00d, 0x203: 0x0008, 0x204: 0xe00d, 0x205: 0x0008,
+	0x206: 0xe00d, 0x207: 0x0008, 0x208: 0xe00d, 0x209: 0x0008, 0x20a: 0xe00d, 0x20b: 0x0008,
+	0x20c: 0xe00d, 0x20d: 0x0008, 0x20e: 0xe00d, 0x20f: 0x0008, 0x210: 0xe00d, 0x211: 0x0008,
+	0x212: 0xe00d, 0x213: 0x0008, 0x214: 0xe00d, 0x215: 0x0008, 0x216: 0xe00d, 0x217: 0x0008,
+	0x218: 0xe00d, 0x219: 0x0008, 0x21a: 0xe00d, 0x21b: 0x0008, 0x21c: 0xe00d, 0x21d: 0x0008,
+	0x21e: 0xe00d, 0x21f: 0x0008, 0x220: 0x0305, 0x221: 0x0008, 0x222: 0xe00d, 0x223: 0x0008,
+	0x224: 0xe00d, 0x225: 0x0008, 0x226: 0xe00d, 0x227: 0x0008, 0x228: 0xe00d, 0x229: 0x0008,
+	0x22a: 0xe00d, 0x22b: 0x0008, 0x22c: 0xe00d, 0x22d: 0x0008, 0x22e: 0xe00d, 0x22f: 0x0008,
+	0x230: 0xe00d, 0x231: 0x0008, 0x232: 0xe00d, 0x233: 0x0008, 0x234: 0x0008, 0x235: 0x0008,
+	0x236: 0x0008, 0x237: 0x0008, 0x238: 0x0008, 0x239: 0x0008, 0x23a: 0x0209, 0x23b: 0xe03d,
+	0x23c: 0x0008, 0x23d: 0x031d, 0x23e: 0x0229, 0x23f: 0x0008,
+	// Block 0x9, offset 0x240
+	0x240: 0x0008, 0x241: 0x0008, 0x242: 0x0018, 0x243: 0x0018, 0x244: 0x0018, 0x245: 0x0018,
+	0x246: 0x0008, 0x247: 0x0008, 0x248: 0x0008, 0x249: 0x0008, 0x24a: 0x0008, 0x24b: 0x0008,
+	0x24c: 0x0008, 0x24d: 0x0008, 0x24e: 0x0008, 0x24f: 0x0008, 0x250: 0x0008, 0x251: 0x0008,
+	0x252: 0x0018, 0x253: 0x0018, 0x254: 0x0018, 0x255: 0x0018, 0x256: 0x0018, 0x257: 0x0018,
+	0x258: 0x029a, 0x259: 0x02ba, 0x25a: 0x02da, 0x25b: 0x02fa, 0x25c: 0x031a, 0x25d: 0x033a,
+	0x25e: 0x0018, 0x25f: 0x0018, 0x260: 0x03ad, 0x261: 0x0359, 0x262: 0x01d9, 0x263: 0x0369,
+	0x264: 0x03c5, 0x265: 0x0018, 0x266: 0x0018, 0x267: 0x0018, 0x268: 0x0018, 0x269: 0x0018,
+	0x26a: 0x0018, 0x26b: 0x0018, 0x26c: 0x0008, 0x26d: 0x0018, 0x26e: 0x0008, 0x26f: 0x0018,
+	0x270: 0x0018, 0x271: 0x0018, 0x272: 0x0018, 0x273: 0x0018, 0x274: 0x0018, 0x275: 0x0018,
+	0x276: 0x0018, 0x277: 0x0018, 0x278: 0x0018, 0x279: 0x0018, 0x27a: 0x0018, 0x27b: 0x0018,
+	0x27c: 0x0018, 0x27d: 0x0018, 0x27e: 0x0018, 0x27f: 0x0018,
+	// Block 0xa, offset 0x280
+	0x280: 0x03dd, 0x281: 0x03dd, 0x282: 0x3308, 0x283: 0x03f5, 0x284: 0x0379, 0x285: 0x040d,
+	0x286: 0x3308, 0x287: 0x3308, 0x288: 0x3308, 0x289: 0x3308, 0x28a: 0x3308, 0x28b: 0x3308,
+	0x28c: 0x3308, 0x28d: 0x3308, 0x28e: 0x3308, 0x28f: 0x33c0, 0x290: 0x3308, 0x291: 0x3308,
+	0x292: 0x3308, 0x293: 0x3308, 0x294: 0x3308, 0x295: 0x3308, 0x296: 0x3308, 0x297: 0x3308,
+	0x298: 0x3308, 0x299: 0x3308, 0x29a: 0x3308, 0x29b: 0x3308, 0x29c: 0x3308, 0x29d: 0x3308,
+	0x29e: 0x3308, 0x29f: 0x3308, 0x2a0: 0x3308, 0x2a1: 0x3308, 0x2a2: 0x3308, 0x2a3: 0x3308,
+	0x2a4: 0x3308, 0x2a5: 0x3308, 0x2a6: 0x3308, 0x2a7: 0x3308, 0x2a8: 0x3308, 0x2a9: 0x3308,
+	0x2aa: 0x3308, 0x2ab: 0x3308, 0x2ac: 0x3308, 0x2ad: 0x3308, 0x2ae: 0x3308, 0x2af: 0x3308,
+	0x2b0: 0xe00d, 0x2b1: 0x0008, 0x2b2: 0xe00d, 0x2b3: 0x0008, 0x2b4: 0x0425, 0x2b5: 0x0008,
+	0x2b6: 0xe00d, 0x2b7: 0x0008, 0x2b8: 0x0040, 0x2b9: 0x0040, 0x2ba: 0x03a2, 0x2bb: 0x0008,
+	0x2bc: 0x0008, 0x2bd: 0x0008, 0x2be: 0x03c2, 0x2bf: 0x043d,
+	// Block 0xb, offset 0x2c0
+	0x2c0: 0x0040, 0x2c1: 0x0040, 0x2c2: 0x0040, 0x2c3: 0x0040, 0x2c4: 0x008a, 0x2c5: 0x03d2,
+	0x2c6: 0xe155, 0x2c7: 0x0455, 0x2c8: 0xe12d, 0x2c9: 0xe13d, 0x2ca: 0xe12d, 0x2cb: 0x0040,
+	0x2cc: 0x03dd, 0x2cd: 0x0040, 0x2ce: 0x046d, 0x2cf: 0x0485, 0x2d0: 0x0008, 0x2d1: 0xe105,
+	0x2d2: 0xe105, 0x2d3: 0xe105, 0x2d4: 0xe105, 0x2d5: 0xe105, 0x2d6: 0xe105, 0x2d7: 0xe105,
+	0x2d8: 0xe105, 0x2d9: 0xe105, 0x2da: 0xe105, 0x2db: 0xe105, 0x2dc: 0xe105, 0x2dd: 0xe105,
+	0x2de: 0xe105, 0x2df: 0xe105, 0x2e0: 0x049d, 0x2e1: 0x049d, 0x2e2: 0x0040, 0x2e3: 0x049d,
+	0x2e4: 0x049d, 0x2e5: 0x049d, 0x2e6: 0x049d, 0x2e7: 0x049d, 0x2e8: 0x049d, 0x2e9: 0x049d,
+	0x2ea: 0x049d, 0x2eb: 0x049d, 0x2ec: 0x0008, 0x2ed: 0x0008, 0x2ee: 0x0008, 0x2ef: 0x0008,
+	0x2f0: 0x0008, 0x2f1: 0x0008, 0x2f2: 0x0008, 0x2f3: 0x0008, 0x2f4: 0x0008, 0x2f5: 0x0008,
+	0x2f6: 0x0008, 0x2f7: 0x0008, 0x2f8: 0x0008, 0x2f9: 0x0008, 0x2fa: 0x0008, 0x2fb: 0x0008,
+	0x2fc: 0x0008, 0x2fd: 0x0008, 0x2fe: 0x0008, 0x2ff: 0x0008,
+	// Block 0xc, offset 0x300
+	0x300: 0x0008, 0x301: 0x0008, 0x302: 0xe00f, 0x303: 0x0008, 0x304: 0x0008, 0x305: 0x0008,
+	0x306: 0x0008, 0x307: 0x0008, 0x308: 0x0008, 0x309: 0x0008, 0x30a: 0x0008, 0x30b: 0x0008,
+	0x30c: 0x0008, 0x30d: 0x0008, 0x30e: 0x0008, 0x30f: 0xe0c5, 0x310: 0x04b5, 0x311: 0x04cd,
+	0x312: 0xe0bd, 0x313: 0xe0f5, 0x314: 0xe0fd, 0x315: 0xe09d, 0x316: 0xe0b5, 0x317: 0x0008,
+	0x318: 0xe00d, 0x319: 0x0008, 0x31a: 0xe00d, 0x31b: 0x0008, 0x31c: 0xe00d, 0x31d: 0x0008,
+	0x31e: 0xe00d, 0x31f: 0x0008, 0x320: 0xe00d, 0x321: 0x0008, 0x322: 0xe00d, 0x323: 0x0008,
+	0x324: 0xe00d, 0x325: 0x0008, 0x326: 0xe00d, 0x327: 0x0008, 0x328: 0xe00d, 0x329: 0x0008,
+	0x32a: 0xe00d, 0x32b: 0x0008, 0x32c: 0xe00d, 0x32d: 0x0008, 0x32e: 0xe00d, 0x32f: 0x0008,
+	0x330: 0x04e5, 0x331: 0xe185, 0x332: 0xe18d, 0x333: 0x0008, 0x334: 0x04fd, 0x335: 0x03dd,
+	0x336: 0x0018, 0x337: 0xe07d, 0x338: 0x0008, 0x339: 0xe1d5, 0x33a: 0xe00d, 0x33b: 0x0008,
+	0x33c: 0x0008, 0x33d: 0x0515, 0x33e: 0x052d, 0x33f: 0x052d,
+	// Block 0xd, offset 0x340
+	0x340: 0x0008, 0x341: 0x0008, 0x342: 0x0008, 0x343: 0x0008, 0x344: 0x0008, 0x345: 0x0008,
+	0x346: 0x0008, 0x347: 0x0008, 0x348: 0x0008, 0x349: 0x0008, 0x34a: 0x0008, 0x34b: 0x0008,
+	0x34c: 0x0008, 0x34d: 0x0008, 0x34e: 0x0008, 0x34f: 0x0008, 0x350: 0x0008, 0x351: 0x0008,
+	0x352: 0x0008, 0x353: 0x0008, 0x354: 0x0008, 0x355: 0x0008, 0x356: 0x0008, 0x357: 0x0008,
+	0x358: 0x0008, 0x359: 0x0008, 0x35a: 0x0008, 0x35b: 0x0008, 0x35c: 0x0008, 0x35d: 0x0008,
+	0x35e: 0x0008, 0x35f: 0x0008, 0x360: 0xe00d, 0x361: 0x0008, 0x362: 0xe00d, 0x363: 0x0008,
+	0x364: 0xe00d, 0x365: 0x0008, 0x366: 0xe00d, 0x367: 0x0008, 0x368: 0xe00d, 0x369: 0x0008,
+	0x36a: 0xe00d, 0x36b: 0x0008, 0x36c: 0xe00d, 0x36d: 0x0008, 0x36e: 0xe00d, 0x36f: 0x0008,
+	0x370: 0xe00d, 0x371: 0x0008, 0x372: 0xe00d, 0x373: 0x0008, 0x374: 0xe00d, 0x375: 0x0008,
+	0x376: 0xe00d, 0x377: 0x0008, 0x378: 0xe00d, 0x379: 0x0008, 0x37a: 0xe00d, 0x37b: 0x0008,
+	0x37c: 0xe00d, 0x37d: 0x0008, 0x37e: 0xe00d, 0x37f: 0x0008,
+	// Block 0xe, offset 0x380
+	0x380: 0xe00d, 0x381: 0x0008, 0x382: 0x0018, 0x383: 0x3308, 0x384: 0x3308, 0x385: 0x3308,
+	0x386: 0x3308, 0x387: 0x3308, 0x388: 0x3318, 0x389: 0x3318, 0x38a: 0xe00d, 0x38b: 0x0008,
+	0x38c: 0xe00d, 0x38d: 0x0008, 0x38e: 0xe00d, 0x38f: 0x0008, 0x390: 0xe00d, 0x391: 0x0008,
+	0x392: 0xe00d, 0x393: 0x0008, 0x394: 0xe00d, 0x395: 0x0008, 0x396: 0xe00d, 0x397: 0x0008,
+	0x398: 0xe00d, 0x399: 0x0008, 0x39a: 0xe00d, 0x39b: 0x0008, 0x39c: 0xe00d, 0x39d: 0x0008,
+	0x39e: 0xe00d, 0x39f: 0x0008, 0x3a0: 0xe00d, 0x3a1: 0x0008, 0x3a2: 0xe00d, 0x3a3: 0x0008,
+	0x3a4: 0xe00d, 0x3a5: 0x0008, 0x3a6: 0xe00d, 0x3a7: 0x0008, 0x3a8: 0xe00d, 0x3a9: 0x0008,
+	0x3aa: 0xe00d, 0x3ab: 0x0008, 0x3ac: 0xe00d, 0x3ad: 0x0008, 0x3ae: 0xe00d, 0x3af: 0x0008,
+	0x3b0: 0xe00d, 0x3b1: 0x0008, 0x3b2: 0xe00d, 0x3b3: 0x0008, 0x3b4: 0xe00d, 0x3b5: 0x0008,
+	0x3b6: 0xe00d, 0x3b7: 0x0008, 0x3b8: 0xe00d, 0x3b9: 0x0008, 0x3ba: 0xe00d, 0x3bb: 0x0008,
+	0x3bc: 0xe00d, 0x3bd: 0x0008, 0x3be: 0xe00d, 0x3bf: 0x0008,
+	// Block 0xf, offset 0x3c0
+	0x3c0: 0x0040, 0x3c1: 0xe01d, 0x3c2: 0x0008, 0x3c3: 0xe03d, 0x3c4: 0x0008, 0x3c5: 0xe01d,
+	0x3c6: 0x0008, 0x3c7: 0xe07d, 0x3c8: 0x0008, 0x3c9: 0xe01d, 0x3ca: 0x0008, 0x3cb: 0xe03d,
+	0x3cc: 0x0008, 0x3cd: 0xe01d, 0x3ce: 0x0008, 0x3cf: 0x0008, 0x3d0: 0xe00d, 0x3d1: 0x0008,
+	0x3d2: 0xe00d, 0x3d3: 0x0008, 0x3d4: 0xe00d, 0x3d5: 0x0008, 0x3d6: 0xe00d, 0x3d7: 0x0008,
+	0x3d8: 0xe00d, 0x3d9: 0x0008, 0x3da: 0xe00d, 0x3db: 0x0008, 0x3dc: 0xe00d, 0x3dd: 0x0008,
+	0x3de: 0xe00d, 0x3df: 0x0008, 0x3e0: 0xe00d, 0x3e1: 0x0008, 0x3e2: 0xe00d, 0x3e3: 0x0008,
+	0x3e4: 0xe00d, 0x3e5: 0x0008, 0x3e6: 0xe00d, 0x3e7: 0x0008, 0x3e8: 0xe00d, 0x3e9: 0x0008,
+	0x3ea: 0xe00d, 0x3eb: 0x0008, 0x3ec: 0xe00d, 0x3ed: 0x0008, 0x3ee: 0xe00d, 0x3ef: 0x0008,
+	0x3f0: 0xe00d, 0x3f1: 0x0008, 0x3f2: 0xe00d, 0x3f3: 0x0008, 0x3f4: 0xe00d, 0x3f5: 0x0008,
+	0x3f6: 0xe00d, 0x3f7: 0x0008, 0x3f8: 0xe00d, 0x3f9: 0x0008, 0x3fa: 0xe00d, 0x3fb: 0x0008,
+	0x3fc: 0xe00d, 0x3fd: 0x0008, 0x3fe: 0xe00d, 0x3ff: 0x0008,
+	// Block 0x10, offset 0x400
+	0x400: 0xe00d, 0x401: 0x0008, 0x402: 0xe00d, 0x403: 0x0008, 0x404: 0xe00d, 0x405: 0x0008,
+	0x406: 0xe00d, 0x407: 0x0008, 0x408: 0xe00d, 0x409: 0x0008, 0x40a: 0xe00d, 0x40b: 0x0008,
+	0x40c: 0xe00d, 0x40d: 0x0008, 0x40e: 0xe00d, 0x40f: 0x0008, 0x410: 0xe00d, 0x411: 0x0008,
+	0x412: 0xe00d, 0x413: 0x0008, 0x414: 0xe00d, 0x415: 0x0008, 0x416: 0xe00d, 0x417: 0x0008,
+	0x418: 0xe00d, 0x419: 0x0008, 0x41a: 0xe00d, 0x41b: 0x0008, 0x41c: 0xe00d, 0x41d: 0x0008,
+	0x41e: 0xe00d, 0x41f: 0x0008, 0x420: 0xe00d, 0x421: 0x0008, 0x422: 0xe00d, 0x423: 0x0008,
+	0x424: 0xe00d, 0x425: 0x0008, 0x426: 0xe00d, 0x427: 0x0008, 0x428: 0xe00d, 0x429: 0x0008,
+	0x42a: 0xe00d, 0x42b: 0x0008, 0x42c: 0xe00d, 0x42d: 0x0008, 0x42e: 0xe00d, 0x42f: 0x0008,
+	0x430: 0x0040, 0x431: 0x03f5, 0x432: 0x03f5, 0x433: 0x03f5, 0x434: 0x03f5, 0x435: 0x03f5,
+	0x436: 0x03f5, 0x437: 0x03f5, 0x438: 0x03f5, 0x439: 0x03f5, 0x43a: 0x03f5, 0x43b: 0x03f5,
+	0x43c: 0x03f5, 0x43d: 0x03f5, 0x43e: 0x03f5, 0x43f: 0x03f5,
+	// Block 0x11, offset 0x440
+	0x440: 0x0840, 0x441: 0x0840, 0x442: 0x0840, 0x443: 0x0840, 0x444: 0x0840, 0x445: 0x0840,
+	0x446: 0x0018, 0x447: 0x0018, 0x448: 0x0818, 0x449: 0x0018, 0x44a: 0x0018, 0x44b: 0x0818,
+	0x44c: 0x0018, 0x44d: 0x0818, 0x44e: 0x0018, 0x44f: 0x0018, 0x450: 0x3308, 0x451: 0x3308,
+	0x452: 0x3308, 0x453: 0x3308, 0x454: 0x3308, 0x455: 0x3308, 0x456: 0x3308, 0x457: 0x3308,
+	0x458: 0x3308, 0x459: 0x3308, 0x45a: 0x3308, 0x45b: 0x0818, 0x45c: 0x0b40, 0x45d: 0x0040,
+	0x45e: 0x0818, 0x45f: 0x0818, 0x460: 0x0a08, 0x461: 0x0808, 0x462: 0x0c08, 0x463: 0x0c08,
+	0x464: 0x0c08, 0x465: 0x0c08, 0x466: 0x0a08, 0x467: 0x0c08, 0x468: 0x0a08, 0x469: 0x0c08,
+	0x46a: 0x0a08, 0x46b: 0x0a08, 0x46c: 0x0a08, 0x46d: 0x0a08, 0x46e: 0x0a08, 0x46f: 0x0c08,
+	0x470: 0x0c08, 0x471: 0x0c08, 0x472: 0x0c08, 0x473: 0x0a08, 0x474: 0x0a08, 0x475: 0x0a08,
+	0x476: 0x0a08, 0x477: 0x0a08, 0x478: 0x0a08, 0x479: 0x0a08, 0x47a: 0x0a08, 0x47b: 0x0a08,
+	0x47c: 0x0a08, 0x47d: 0x0a08, 0x47e: 0x0a08, 0x47f: 0x0a08,
+	// Block 0x12, offset 0x480
+	0x480: 0x0818, 0x481: 0x0a08, 0x482: 0x0a08, 0x483: 0x0a08, 0x484: 0x0a08, 0x485: 0x0a08,
+	0x486: 0x0a08, 0x487: 0x0a08, 0x488: 0x0c08, 0x489: 0x0a08, 0x48a: 0x0a08, 0x48b: 0x3308,
+	0x48c: 0x3308, 0x48d: 0x3308, 0x48e: 0x3308, 0x48f: 0x3308, 0x490: 0x3308, 0x491: 0x3308,
+	0x492: 0x3308, 0x493: 0x3308, 0x494: 0x3308, 0x495: 0x3308, 0x496: 0x3308, 0x497: 0x3308,
+	0x498: 0x3308, 0x499: 0x3308, 0x49a: 0x3308, 0x49b: 0x3308, 0x49c: 0x3308, 0x49d: 0x3308,
+	0x49e: 0x3308, 0x49f: 0x3308, 0x4a0: 0x0808, 0x4a1: 0x0808, 0x4a2: 0x0808, 0x4a3: 0x0808,
+	0x4a4: 0x0808, 0x4a5: 0x0808, 0x4a6: 0x0808, 0x4a7: 0x0808, 0x4a8: 0x0808, 0x4a9: 0x0808,
+	0x4aa: 0x0018, 0x4ab: 0x0818, 0x4ac: 0x0818, 0x4ad: 0x0818, 0x4ae: 0x0a08, 0x4af: 0x0a08,
+	0x4b0: 0x3308, 0x4b1: 0x0c08, 0x4b2: 0x0c08, 0x4b3: 0x0c08, 0x4b4: 0x0808, 0x4b5: 0x0429,
+	0x4b6: 0x0451, 0x4b7: 0x0479, 0x4b8: 0x04a1, 0x4b9: 0x0a08, 0x4ba: 0x0a08, 0x4bb: 0x0a08,
+	0x4bc: 0x0a08, 0x4bd: 0x0a08, 0x4be: 0x0a08, 0x4bf: 0x0a08,
+	// Block 0x13, offset 0x4c0
+	0x4c0: 0x0c08, 0x4c1: 0x0a08, 0x4c2: 0x0a08, 0x4c3: 0x0c08, 0x4c4: 0x0c08, 0x4c5: 0x0c08,
+	0x4c6: 0x0c08, 0x4c7: 0x0c08, 0x4c8: 0x0c08, 0x4c9: 0x0c08, 0x4ca: 0x0c08, 0x4cb: 0x0c08,
+	0x4cc: 0x0a08, 0x4cd: 0x0c08, 0x4ce: 0x0a08, 0x4cf: 0x0c08, 0x4d0: 0x0a08, 0x4d1: 0x0a08,
+	0x4d2: 0x0c08, 0x4d3: 0x0c08, 0x4d4: 0x0818, 0x4d5: 0x0c08, 0x4d6: 0x3308, 0x4d7: 0x3308,
+	0x4d8: 0x3308, 0x4d9: 0x3308, 0x4da: 0x3308, 0x4db: 0x3308, 0x4dc: 0x3308, 0x4dd: 0x0840,
+	0x4de: 0x0018, 0x4df: 0x3308, 0x4e0: 0x3308, 0x4e1: 0x3308, 0x4e2: 0x3308, 0x4e3: 0x3308,
+	0x4e4: 0x3308, 0x4e5: 0x0808, 0x4e6: 0x0808, 0x4e7: 0x3308, 0x4e8: 0x3308, 0x4e9: 0x0018,
+	0x4ea: 0x3308, 0x4eb: 0x3308, 0x4ec: 0x3308, 0x4ed: 0x3308, 0x4ee: 0x0c08, 0x4ef: 0x0c08,
+	0x4f0: 0x0008, 0x4f1: 0x0008, 0x4f2: 0x0008, 0x4f3: 0x0008, 0x4f4: 0x0008, 0x4f5: 0x0008,
+	0x4f6: 0x0008, 0x4f7: 0x0008, 0x4f8: 0x0008, 0x4f9: 0x0008, 0x4fa: 0x0a08, 0x4fb: 0x0a08,
+	0x4fc: 0x0a08, 0x4fd: 0x0808, 0x4fe: 0x0808, 0x4ff: 0x0a08,
+	// Block 0x14, offset 0x500
+	0x500: 0x0818, 0x501: 0x0818, 0x502: 0x0818, 0x503: 0x0818, 0x504: 0x0818, 0x505: 0x0818,
+	0x506: 0x0818, 0x507: 0x0818, 0x508: 0x0818, 0x509: 0x0818, 0x50a: 0x0818, 0x50b: 0x0818,
+	0x50c: 0x0818, 0x50d: 0x0818, 0x50e: 0x0040, 0x50f: 0x0b40, 0x510: 0x0c08, 0x511: 0x3308,
+	0x512: 0x0a08, 0x513: 0x0a08, 0x514: 0x0a08, 0x515: 0x0c08, 0x516: 0x0c08, 0x517: 0x0c08,
+	0x518: 0x0c08, 0x519: 0x0c08, 0x51a: 0x0a08, 0x51b: 0x0a08, 0x51c: 0x0a08, 0x51d: 0x0a08,
+	0x51e: 0x0c08, 0x51f: 0x0a08, 0x520: 0x0a08, 0x521: 0x0a08, 0x522: 0x0a08, 0x523: 0x0a08,
+	0x524: 0x0a08, 0x525: 0x0a08, 0x526: 0x0a08, 0x527: 0x0a08, 0x528: 0x0c08, 0x529: 0x0a08,
+	0x52a: 0x0c08, 0x52b: 0x0a08, 0x52c: 0x0c08, 0x52d: 0x0a08, 0x52e: 0x0a08, 0x52f: 0x0c08,
+	0x530: 0x3308, 0x531: 0x3308, 0x532: 0x3308, 0x533: 0x3308, 0x534: 0x3308, 0x535: 0x3308,
+	0x536: 0x3308, 0x537: 0x3308, 0x538: 0x3308, 0x539: 0x3308, 0x53a: 0x3308, 0x53b: 0x3308,
+	0x53c: 0x3308, 0x53d: 0x3308, 0x53e: 0x3308, 0x53f: 0x3308,
+	// Block 0x15, offset 0x540
+	0x540: 0x0c08, 0x541: 0x0a08, 0x542: 0x0a08, 0x543: 0x0a08, 0x544: 0x0a08, 0x545: 0x0a08,
+	0x546: 0x0c08, 0x547: 0x0c08, 0x548: 0x0a08, 0x549: 0x0c08, 0x54a: 0x0a08, 0x54b: 0x0a08,
+	0x54c: 0x0a08, 0x54d: 0x0a08, 0x54e: 0x0a08, 0x54f: 0x0a08, 0x550: 0x0a08, 0x551: 0x0a08,
+	0x552: 0x0a08, 0x553: 0x0a08, 0x554: 0x0c08, 0x555: 0x0a08, 0x556: 0x0808, 0x557: 0x0808,
+	0x558: 0x0808, 0x559: 0x3308, 0x55a: 0x3308, 0x55b: 0x3308, 0x55c: 0x0040, 0x55d: 0x0040,
+	0x55e: 0x0818, 0x55f: 0x0040, 0x560: 0x0a08, 0x561: 0x0808, 0x562: 0x0a08, 0x563: 0x0a08,
+	0x564: 0x0a08, 0x565: 0x0a08, 0x566: 0x0808, 0x567: 0x0c08, 0x568: 0x0a08, 0x569: 0x0c08,
+	0x56a: 0x0c08, 0x56b: 0x0040, 0x56c: 0x0040, 0x56d: 0x0040, 0x56e: 0x0040, 0x56f: 0x0040,
+	0x570: 0x0040, 0x571: 0x0040, 0x572: 0x0040, 0x573: 0x0040, 0x574: 0x0040, 0x575: 0x0040,
+	0x576: 0x0040, 0x577: 0x0040, 0x578: 0x0040, 0x579: 0x0040, 0x57a: 0x0040, 0x57b: 0x0040,
+	0x57c: 0x0040, 0x57d: 0x0040, 0x57e: 0x0040, 0x57f: 0x0040,
+	// Block 0x16, offset 0x580
+	0x580: 0x3008, 0x581: 0x3308, 0x582: 0x3308, 0x583: 0x3308, 0x584: 0x3308, 0x585: 0x3308,
+	0x586: 0x3308, 0x587: 0x3308, 0x588: 0x3308, 0x589: 0x3008, 0x58a: 0x3008, 0x58b: 0x3008,
+	0x58c: 0x3008, 0x58d: 0x3b08, 0x58e: 0x3008, 0x58f: 0x3008, 0x590: 0x0008, 0x591: 0x3308,
+	0x592: 0x3308, 0x593: 0x3308, 0x594: 0x3308, 0x595: 0x3308, 0x596: 0x3308, 0x597: 0x3308,
+	0x598: 0x04c9, 0x599: 0x0501, 0x59a: 0x0539, 0x59b: 0x0571, 0x59c: 0x05a9, 0x59d: 0x05e1,
+	0x59e: 0x0619, 0x59f: 0x0651, 0x5a0: 0x0008, 0x5a1: 0x0008, 0x5a2: 0x3308, 0x5a3: 0x3308,
+	0x5a4: 0x0018, 0x5a5: 0x0018, 0x5a6: 0x0008, 0x5a7: 0x0008, 0x5a8: 0x0008, 0x5a9: 0x0008,
+	0x5aa: 0x0008, 0x5ab: 0x0008, 0x5ac: 0x0008, 0x5ad: 0x0008, 0x5ae: 0x0008, 0x5af: 0x0008,
+	0x5b0: 0x0018, 0x5b1: 0x0008, 0x5b2: 0x0008, 0x5b3: 0x0008, 0x5b4: 0x0008, 0x5b5: 0x0008,
+	0x5b6: 0x0008, 0x5b7: 0x0008, 0x5b8: 0x0008, 0x5b9: 0x0008, 0x5ba: 0x0008, 0x5bb: 0x0008,
+	0x5bc: 0x0008, 0x5bd: 0x0008, 0x5be: 0x0008, 0x5bf: 0x0008,
+	// Block 0x17, offset 0x5c0
+	0x5c0: 0x0008, 0x5c1: 0x3308, 0x5c2: 0x3008, 0x5c3: 0x3008, 0x5c4: 0x0040, 0x5c5: 0x0008,
+	0x5c6: 0x0008, 0x5c7: 0x0008, 0x5c8: 0x0008, 0x5c9: 0x0008, 0x5ca: 0x0008, 0x5cb: 0x0008,
+	0x5cc: 0x0008, 0x5cd: 0x0040, 0x5ce: 0x0040, 0x5cf: 0x0008, 0x5d0: 0x0008, 0x5d1: 0x0040,
+	0x5d2: 0x0040, 0x5d3: 0x0008, 0x5d4: 0x0008, 0x5d5: 0x0008, 0x5d6: 0x0008, 0x5d7: 0x0008,
+	0x5d8: 0x0008, 0x5d9: 0x0008, 0x5da: 0x0008, 0x5db: 0x0008, 0x5dc: 0x0008, 0x5dd: 0x0008,
+	0x5de: 0x0008, 0x5df: 0x0008, 0x5e0: 0x0008, 0x5e1: 0x0008, 0x5e2: 0x0008, 0x5e3: 0x0008,
+	0x5e4: 0x0008, 0x5e5: 0x0008, 0x5e6: 0x0008, 0x5e7: 0x0008, 0x5e8: 0x0008, 0x5e9: 0x0040,
+	0x5ea: 0x0008, 0x5eb: 0x0008, 0x5ec: 0x0008, 0x5ed: 0x0008, 0x5ee: 0x0008, 0x5ef: 0x0008,
+	0x5f0: 0x0008, 0x5f1: 0x0040, 0x5f2: 0x0008, 0x5f3: 0x0040, 0x5f4: 0x0040, 0x5f5: 0x0040,
+	0x5f6: 0x0008, 0x5f7: 0x0008, 0x5f8: 0x0008, 0x5f9: 0x0008, 0x5fa: 0x0040, 0x5fb: 0x0040,
+	0x5fc: 0x3308, 0x5fd: 0x0008, 0x5fe: 0x3008, 0x5ff: 0x3008,
+	// Block 0x18, offset 0x600
+	0x600: 0x3008, 0x601: 0x3308, 0x602: 0x3308, 0x603: 0x3308, 0x604: 0x3308, 0x605: 0x0040,
+	0x606: 0x0040, 0x607: 0x3008, 0x608: 0x3008, 0x609: 0x0040, 0x60a: 0x0040, 0x60b: 0x3008,
+	0x60c: 0x3008, 0x60d: 0x3b08, 0x60e: 0x0008, 0x60f: 0x0040, 0x610: 0x0040, 0x611: 0x0040,
+	0x612: 0x0040, 0x613: 0x0040, 0x614: 0x0040, 0x615: 0x0040, 0x616: 0x0040, 0x617: 0x3008,
+	0x618: 0x0040, 0x619: 0x0040, 0x61a: 0x0040, 0x61b: 0x0040, 0x61c: 0x0689, 0x61d: 0x06c1,
+	0x61e: 0x0040, 0x61f: 0x06f9, 0x620: 0x0008, 0x621: 0x0008, 0x622: 0x3308, 0x623: 0x3308,
+	0x624: 0x0040, 0x625: 0x0040, 0x626: 0x0008, 0x627: 0x0008, 0x628: 0x0008, 0x629: 0x0008,
+	0x62a: 0x0008, 0x62b: 0x0008, 0x62c: 0x0008, 0x62d: 0x0008, 0x62e: 0x0008, 0x62f: 0x0008,
+	0x630: 0x0008, 0x631: 0x0008, 0x632: 0x0018, 0x633: 0x0018, 0x634: 0x0018, 0x635: 0x0018,
+	0x636: 0x0018, 0x637: 0x0018, 0x638: 0x0018, 0x639: 0x0018, 0x63a: 0x0018, 0x63b: 0x0018,
+	0x63c: 0x0008, 0x63d: 0x0018, 0x63e: 0x3308, 0x63f: 0x0040,
+	// Block 0x19, offset 0x640
+	0x640: 0x0040, 0x641: 0x3308, 0x642: 0x3308, 0x643: 0x3008, 0x644: 0x0040, 0x645: 0x0008,
+	0x646: 0x0008, 0x647: 0x0008, 0x648: 0x0008, 0x649: 0x0008, 0x64a: 0x0008, 0x64b: 0x0040,
+	0x64c: 0x0040, 0x64d: 0x0040, 0x64e: 0x0040, 0x64f: 0x0008, 0x650: 0x0008, 0x651: 0x0040,
+	0x652: 0x0040, 0x653: 0x0008, 0x654: 0x0008, 0x655: 0x0008, 0x656: 0x0008, 0x657: 0x0008,
+	0x658: 0x0008, 0x659: 0x0008, 0x65a: 0x0008, 0x65b: 0x0008, 0x65c: 0x0008, 0x65d: 0x0008,
+	0x65e: 0x0008, 0x65f: 0x0008, 0x660: 0x0008, 0x661: 0x0008, 0x662: 0x0008, 0x663: 0x0008,
+	0x664: 0x0008, 0x665: 0x0008, 0x666: 0x0008, 0x667: 0x0008, 0x668: 0x0008, 0x669: 0x0040,
+	0x66a: 0x0008, 0x66b: 0x0008, 0x66c: 0x0008, 0x66d: 0x0008, 0x66e: 0x0008, 0x66f: 0x0008,
+	0x670: 0x0008, 0x671: 0x0040, 0x672: 0x0008, 0x673: 0x0731, 0x674: 0x0040, 0x675: 0x0008,
+	0x676: 0x0769, 0x677: 0x0040, 0x678: 0x0008, 0x679: 0x0008, 0x67a: 0x0040, 0x67b: 0x0040,
+	0x67c: 0x3308, 0x67d: 0x0040, 0x67e: 0x3008, 0x67f: 0x3008,
+	// Block 0x1a, offset 0x680
+	0x680: 0x3008, 0x681: 0x3308, 0x682: 0x3308, 0x683: 0x0040, 0x684: 0x0040, 0x685: 0x0040,
+	0x686: 0x0040, 0x687: 0x3308, 0x688: 0x3308, 0x689: 0x0040, 0x68a: 0x0040, 0x68b: 0x3308,
+	0x68c: 0x3308, 0x68d: 0x3b08, 0x68e: 0x0040, 0x68f: 0x0040, 0x690: 0x0040, 0x691: 0x3308,
+	0x692: 0x0040, 0x693: 0x0040, 0x694: 0x0040, 0x695: 0x0040, 0x696: 0x0040, 0x697: 0x0040,
+	0x698: 0x0040, 0x699: 0x07a1, 0x69a: 0x07d9, 0x69b: 0x0811, 0x69c: 0x0008, 0x69d: 0x0040,
+	0x69e: 0x0849, 0x69f: 0x0040, 0x6a0: 0x0040, 0x6a1: 0x0040, 0x6a2: 0x0040, 0x6a3: 0x0040,
+	0x6a4: 0x0040, 0x6a5: 0x0040, 0x6a6: 0x0008, 0x6a7: 0x0008, 0x6a8: 0x0008, 0x6a9: 0x0008,
+	0x6aa: 0x0008, 0x6ab: 0x0008, 0x6ac: 0x0008, 0x6ad: 0x0008, 0x6ae: 0x0008, 0x6af: 0x0008,
+	0x6b0: 0x3308, 0x6b1: 0x3308, 0x6b2: 0x0008, 0x6b3: 0x0008, 0x6b4: 0x0008, 0x6b5: 0x3308,
+	0x6b6: 0x0018, 0x6b7: 0x0040, 0x6b8: 0x0040, 0x6b9: 0x0040, 0x6ba: 0x0040, 0x6bb: 0x0040,
+	0x6bc: 0x0040, 0x6bd: 0x0040, 0x6be: 0x0040, 0x6bf: 0x0040,
+	// Block 0x1b, offset 0x6c0
+	0x6c0: 0x0040, 0x6c1: 0x3308, 0x6c2: 0x3308, 0x6c3: 0x3008, 0x6c4: 0x0040, 0x6c5: 0x0008,
+	0x6c6: 0x0008, 0x6c7: 0x0008, 0x6c8: 0x0008, 0x6c9: 0x0008, 0x6ca: 0x0008, 0x6cb: 0x0008,
+	0x6cc: 0x0008, 0x6cd: 0x0008, 0x6ce: 0x0040, 0x6cf: 0x0008, 0x6d0: 0x0008, 0x6d1: 0x0008,
+	0x6d2: 0x0040, 0x6d3: 0x0008, 0x6d4: 0x0008, 0x6d5: 0x0008, 0x6d6: 0x0008, 0x6d7: 0x0008,
+	0x6d8: 0x0008, 0x6d9: 0x0008, 0x6da: 0x0008, 0x6db: 0x0008, 0x6dc: 0x0008, 0x6dd: 0x0008,
+	0x6de: 0x0008, 0x6df: 0x0008, 0x6e0: 0x0008, 0x6e1: 0x0008, 0x6e2: 0x0008, 0x6e3: 0x0008,
+	0x6e4: 0x0008, 0x6e5: 0x0008, 0x6e6: 0x0008, 0x6e7: 0x0008, 0x6e8: 0x0008, 0x6e9: 0x0040,
+	0x6ea: 0x0008, 0x6eb: 0x0008, 0x6ec: 0x0008, 0x6ed: 0x0008, 0x6ee: 0x0008, 0x6ef: 0x0008,
+	0x6f0: 0x0008, 0x6f1: 0x0040, 0x6f2: 0x0008, 0x6f3: 0x0008, 0x6f4: 0x0040, 0x6f5: 0x0008,
+	0x6f6: 0x0008, 0x6f7: 0x0008, 0x6f8: 0x0008, 0x6f9: 0x0008, 0x6fa: 0x0040, 0x6fb: 0x0040,
+	0x6fc: 0x3308, 0x6fd: 0x0008, 0x6fe: 0x3008, 0x6ff: 0x3008,
+	// Block 0x1c, offset 0x700
+	0x700: 0x3008, 0x701: 0x3308, 0x702: 0x3308, 0x703: 0x3308, 0x704: 0x3308, 0x705: 0x3308,
+	0x706: 0x0040, 0x707: 0x3308, 0x708: 0x3308, 0x709: 0x3008, 0x70a: 0x0040, 0x70b: 0x3008,
+	0x70c: 0x3008, 0x70d: 0x3b08, 0x70e: 0x0040, 0x70f: 0x0040, 0x710: 0x0008, 0x711: 0x0040,
+	0x712: 0x0040, 0x713: 0x0040, 0x714: 0x0040, 0x715: 0x0040, 0x716: 0x0040, 0x717: 0x0040,
+	0x718: 0x0040, 0x719: 0x0040, 0x71a: 0x0040, 0x71b: 0x0040, 0x71c: 0x0040, 0x71d: 0x0040,
+	0x71e: 0x0040, 0x71f: 0x0040, 0x720: 0x0008, 0x721: 0x0008, 0x722: 0x3308, 0x723: 0x3308,
+	0x724: 0x0040, 0x725: 0x0040, 0x726: 0x0008, 0x727: 0x0008, 0x728: 0x0008, 0x729: 0x0008,
+	0x72a: 0x0008, 0x72b: 0x0008, 0x72c: 0x0008, 0x72d: 0x0008, 0x72e: 0x0008, 0x72f: 0x0008,
+	0x730: 0x0018, 0x731: 0x0018, 0x732: 0x0040, 0x733: 0x0040, 0x734: 0x0040, 0x735: 0x0040,
+	0x736: 0x0040, 0x737: 0x0040, 0x738: 0x0040, 0x739: 0x0008, 0x73a: 0x3308, 0x73b: 0x3308,
+	0x73c: 0x3308, 0x73d: 0x3308, 0x73e: 0x3308, 0x73f: 0x3308,
+	// Block 0x1d, offset 0x740
+	0x740: 0x0040, 0x741: 0x3308, 0x742: 0x3008, 0x743: 0x3008, 0x744: 0x0040, 0x745: 0x0008,
+	0x746: 0x0008, 0x747: 0x0008, 0x748: 0x0008, 0x749: 0x0008, 0x74a: 0x0008, 0x74b: 0x0008,
+	0x74c: 0x0008, 0x74d: 0x0040, 0x74e: 0x0040, 0x74f: 0x0008, 0x750: 0x0008, 0x751: 0x0040,
+	0x752: 0x0040, 0x753: 0x0008, 0x754: 0x0008, 0x755: 0x0008, 0x756: 0x0008, 0x757: 0x0008,
+	0x758: 0x0008, 0x759: 0x0008, 0x75a: 0x0008, 0x75b: 0x0008, 0x75c: 0x0008, 0x75d: 0x0008,
+	0x75e: 0x0008, 0x75f: 0x0008, 0x760: 0x0008, 0x761: 0x0008, 0x762: 0x0008, 0x763: 0x0008,
+	0x764: 0x0008, 0x765: 0x0008, 0x766: 0x0008, 0x767: 0x0008, 0x768: 0x0008, 0x769: 0x0040,
+	0x76a: 0x0008, 0x76b: 0x0008, 0x76c: 0x0008, 0x76d: 0x0008, 0x76e: 0x0008, 0x76f: 0x0008,
+	0x770: 0x0008, 0x771: 0x0040, 0x772: 0x0008, 0x773: 0x0008, 0x774: 0x0040, 0x775: 0x0008,
+	0x776: 0x0008, 0x777: 0x0008, 0x778: 0x0008, 0x779: 0x0008, 0x77a: 0x0040, 0x77b: 0x0040,
+	0x77c: 0x3308, 0x77d: 0x0008, 0x77e: 0x3008, 0x77f: 0x3308,
+	// Block 0x1e, offset 0x780
+	0x780: 0x3008, 0x781: 0x3308, 0x782: 0x3308, 0x783: 0x3308, 0x784: 0x3308, 0x785: 0x0040,
+	0x786: 0x0040, 0x787: 0x3008, 0x788: 0x3008, 0x789: 0x0040, 0x78a: 0x0040, 0x78b: 0x3008,
+	0x78c: 0x3008, 0x78d: 0x3b08, 0x78e: 0x0040, 0x78f: 0x0040, 0x790: 0x0040, 0x791: 0x0040,
+	0x792: 0x0040, 0x793: 0x0040, 0x794: 0x0040, 0x795: 0x0040, 0x796: 0x3308, 0x797: 0x3008,
+	0x798: 0x0040, 0x799: 0x0040, 0x79a: 0x0040, 0x79b: 0x0040, 0x79c: 0x0881, 0x79d: 0x08b9,
+	0x79e: 0x0040, 0x79f: 0x0008, 0x7a0: 0x0008, 0x7a1: 0x0008, 0x7a2: 0x3308, 0x7a3: 0x3308,
+	0x7a4: 0x0040, 0x7a5: 0x0040, 0x7a6: 0x0008, 0x7a7: 0x0008, 0x7a8: 0x0008, 0x7a9: 0x0008,
+	0x7aa: 0x0008, 0x7ab: 0x0008, 0x7ac: 0x0008, 0x7ad: 0x0008, 0x7ae: 0x0008, 0x7af: 0x0008,
+	0x7b0: 0x0018, 0x7b1: 0x0008, 0x7b2: 0x0018, 0x7b3: 0x0018, 0x7b4: 0x0018, 0x7b5: 0x0018,
+	0x7b6: 0x0018, 0x7b7: 0x0018, 0x7b8: 0x0040, 0x7b9: 0x0040, 0x7ba: 0x0040, 0x7bb: 0x0040,
+	0x7bc: 0x0040, 0x7bd: 0x0040, 0x7be: 0x0040, 0x7bf: 0x0040,
+	// Block 0x1f, offset 0x7c0
+	0x7c0: 0x0040, 0x7c1: 0x0040, 0x7c2: 0x3308, 0x7c3: 0x0008, 0x7c4: 0x0040, 0x7c5: 0x0008,
+	0x7c6: 0x0008, 0x7c7: 0x0008, 0x7c8: 0x0008, 0x7c9: 0x0008, 0x7ca: 0x0008, 0x7cb: 0x0040,
+	0x7cc: 0x0040, 0x7cd: 0x0040, 0x7ce: 0x0008, 0x7cf: 0x0008, 0x7d0: 0x0008, 0x7d1: 0x0040,
+	0x7d2: 0x0008, 0x7d3: 0x0008, 0x7d4: 0x0008, 0x7d5: 0x0008, 0x7d6: 0x0040, 0x7d7: 0x0040,
+	0x7d8: 0x0040, 0x7d9: 0x0008, 0x7da: 0x0008, 0x7db: 0x0040, 0x7dc: 0x0008, 0x7dd: 0x0040,
+	0x7de: 0x0008, 0x7df: 0x0008, 0x7e0: 0x0040, 0x7e1: 0x0040, 0x7e2: 0x0040, 0x7e3: 0x0008,
+	0x7e4: 0x0008, 0x7e5: 0x0040, 0x7e6: 0x0040, 0x7e7: 0x0040, 0x7e8: 0x0008, 0x7e9: 0x0008,
+	0x7ea: 0x0008, 0x7eb: 0x0040, 0x7ec: 0x0040, 0x7ed: 0x0040, 0x7ee: 0x0008, 0x7ef: 0x0008,
+	0x7f0: 0x0008, 0x7f1: 0x0008, 0x7f2: 0x0008, 0x7f3: 0x0008, 0x7f4: 0x0008, 0x7f5: 0x0008,
+	0x7f6: 0x0008, 0x7f7: 0x0008, 0x7f8: 0x0008, 0x7f9: 0x0008, 0x7fa: 0x0040, 0x7fb: 0x0040,
+	0x7fc: 0x0040, 0x7fd: 0x0040, 0x7fe: 0x3008, 0x7ff: 0x3008,
+	// Block 0x20, offset 0x800
+	0x800: 0x3308, 0x801: 0x3008, 0x802: 0x3008, 0x803: 0x3008, 0x804: 0x3008, 0x805: 0x0040,
+	0x806: 0x3308, 0x807: 0x3308, 0x808: 0x3308, 0x809: 0x0040, 0x80a: 0x3308, 0x80b: 0x3308,
+	0x80c: 0x3308, 0x80d: 0x3b08, 0x80e: 0x0040, 0x80f: 0x0040, 0x810: 0x0040, 0x811: 0x0040,
+	0x812: 0x0040, 0x813: 0x0040, 0x814: 0x0040, 0x815: 0x3308, 0x816: 0x3308, 0x817: 0x0040,
+	0x818: 0x0008, 0x819: 0x0008, 0x81a: 0x0008, 0x81b: 0x0040, 0x81c: 0x0040, 0x81d: 0x0040,
+	0x81e: 0x0040, 0x81f: 0x0040, 0x820: 0x0008, 0x821: 0x0008, 0x822: 0x3308, 0x823: 0x3308,
+	0x824: 0x0040, 0x825: 0x0040, 0x826: 0x0008, 0x827: 0x0008, 0x828: 0x0008, 0x829: 0x0008,
+	0x82a: 0x0008, 0x82b: 0x0008, 0x82c: 0x0008, 0x82d: 0x0008, 0x82e: 0x0008, 0x82f: 0x0008,
+	0x830: 0x0040, 0x831: 0x0040, 0x832: 0x0040, 0x833: 0x0040, 0x834: 0x0040, 0x835: 0x0040,
+	0x836: 0x0040, 0x837: 0x0018, 0x838: 0x0018, 0x839: 0x0018, 0x83a: 0x0018, 0x83b: 0x0018,
+	0x83c: 0x0018, 0x83d: 0x0018, 0x83e: 0x0018, 0x83f: 0x0018,
+	// Block 0x21, offset 0x840
+	0x840: 0x0008, 0x841: 0x3308, 0x842: 0x3008, 0x843: 0x3008, 0x844: 0x0018, 0x845: 0x0008,
+	0x846: 0x0008, 0x847: 0x0008, 0x848: 0x0008, 0x849: 0x0008, 0x84a: 0x0008, 0x84b: 0x0008,
+	0x84c: 0x0008, 0x84d: 0x0040, 0x84e: 0x0008, 0x84f: 0x0008, 0x850: 0x0008, 0x851: 0x0040,
+	0x852: 0x0008, 0x853: 0x0008, 0x854: 0x0008, 0x855: 0x0008, 0x856: 0x0008, 0x857: 0x0008,
+	0x858: 0x0008, 0x859: 0x0008, 0x85a: 0x0008, 0x85b: 0x0008, 0x85c: 0x0008, 0x85d: 0x0008,
+	0x85e: 0x0008, 0x85f: 0x0008, 0x860: 0x0008, 0x861: 0x0008, 0x862: 0x0008, 0x863: 0x0008,
+	0x864: 0x0008, 0x865: 0x0008, 0x866: 0x0008, 0x867: 0x0008, 0x868: 0x0008, 0x869: 0x0040,
+	0x86a: 0x0008, 0x86b: 0x0008, 0x86c: 0x0008, 0x86d: 0x0008, 0x86e: 0x0008, 0x86f: 0x0008,
+	0x870: 0x0008, 0x871: 0x0008, 0x872: 0x0008, 0x873: 0x0008, 0x874: 0x0040, 0x875: 0x0008,
+	0x876: 0x0008, 0x877: 0x0008, 0x878: 0x0008, 0x879: 0x0008, 0x87a: 0x0040, 0x87b: 0x0040,
+	0x87c: 0x3308, 0x87d: 0x0008, 0x87e: 0x3008, 0x87f: 0x3308,
+	// Block 0x22, offset 0x880
+	0x880: 0x3008, 0x881: 0x3008, 0x882: 0x3008, 0x883: 0x3008, 0x884: 0x3008, 0x885: 0x0040,
+	0x886: 0x3308, 0x887: 0x3008, 0x888: 0x3008, 0x889: 0x0040, 0x88a: 0x3008, 0x88b: 0x3008,
+	0x88c: 0x3308, 0x88d: 0x3b08, 0x88e: 0x0040, 0x88f: 0x0040, 0x890: 0x0040, 0x891: 0x0040,
+	0x892: 0x0040, 0x893: 0x0040, 0x894: 0x0040, 0x895: 0x3008, 0x896: 0x3008, 0x897: 0x0040,
+	0x898: 0x0040, 0x899: 0x0040, 0x89a: 0x0040, 0x89b: 0x0040, 0x89c: 0x0040, 0x89d: 0x0040,
+	0x89e: 0x0008, 0x89f: 0x0040, 0x8a0: 0x0008, 0x8a1: 0x0008, 0x8a2: 0x3308, 0x8a3: 0x3308,
+	0x8a4: 0x0040, 0x8a5: 0x0040, 0x8a6: 0x0008, 0x8a7: 0x0008, 0x8a8: 0x0008, 0x8a9: 0x0008,
+	0x8aa: 0x0008, 0x8ab: 0x0008, 0x8ac: 0x0008, 0x8ad: 0x0008, 0x8ae: 0x0008, 0x8af: 0x0008,
+	0x8b0: 0x0040, 0x8b1: 0x0008, 0x8b2: 0x0008, 0x8b3: 0x0040, 0x8b4: 0x0040, 0x8b5: 0x0040,
+	0x8b6: 0x0040, 0x8b7: 0x0040, 0x8b8: 0x0040, 0x8b9: 0x0040, 0x8ba: 0x0040, 0x8bb: 0x0040,
+	0x8bc: 0x0040, 0x8bd: 0x0040, 0x8be: 0x0040, 0x8bf: 0x0040,
+	// Block 0x23, offset 0x8c0
+	0x8c0: 0x3008, 0x8c1: 0x3308, 0x8c2: 0x3308, 0x8c3: 0x3308, 0x8c4: 0x3308, 0x8c5: 0x0040,
+	0x8c6: 0x3008, 0x8c7: 0x3008, 0x8c8: 0x3008, 0x8c9: 0x0040, 0x8ca: 0x3008, 0x8cb: 0x3008,
+	0x8cc: 0x3008, 0x8cd: 0x3b08, 0x8ce: 0x0008, 0x8cf: 0x0018, 0x8d0: 0x0040, 0x8d1: 0x0040,
+	0x8d2: 0x0040, 0x8d3: 0x0040, 0x8d4: 0x0008, 0x8d5: 0x0008, 0x8d6: 0x0008, 0x8d7: 0x3008,
+	0x8d8: 0x0018, 0x8d9: 0x0018, 0x8da: 0x0018, 0x8db: 0x0018, 0x8dc: 0x0018, 0x8dd: 0x0018,
+	0x8de: 0x0018, 0x8df: 0x0008, 0x8e0: 0x0008, 0x8e1: 0x0008, 0x8e2: 0x3308, 0x8e3: 0x3308,
+	0x8e4: 0x0040, 0x8e5: 0x0040, 0x8e6: 0x0008, 0x8e7: 0x0008, 0x8e8: 0x0008, 0x8e9: 0x0008,
+	0x8ea: 0x0008, 0x8eb: 0x0008, 0x8ec: 0x0008, 0x8ed: 0x0008, 0x8ee: 0x0008, 0x8ef: 0x0008,
+	0x8f0: 0x0018, 0x8f1: 0x0018, 0x8f2: 0x0018, 0x8f3: 0x0018, 0x8f4: 0x0018, 0x8f5: 0x0018,
+	0x8f6: 0x0018, 0x8f7: 0x0018, 0x8f8: 0x0018, 0x8f9: 0x0018, 0x8fa: 0x0008, 0x8fb: 0x0008,
+	0x8fc: 0x0008, 0x8fd: 0x0008, 0x8fe: 0x0008, 0x8ff: 0x0008,
+	// Block 0x24, offset 0x900
+	0x900: 0x0040, 0x901: 0x0008, 0x902: 0x0008, 0x903: 0x0040, 0x904: 0x0008, 0x905: 0x0040,
+	0x906: 0x0008, 0x907: 0x0008, 0x908: 0x0008, 0x909: 0x0008, 0x90a: 0x0008, 0x90b: 0x0040,
+	0x90c: 0x0008, 0x90d: 0x0008, 0x90e: 0x0008, 0x90f: 0x0008, 0x910: 0x0008, 0x911: 0x0008,
+	0x912: 0x0008, 0x913: 0x0008, 0x914: 0x0008, 0x915: 0x0008, 0x916: 0x0008, 0x917: 0x0008,
+	0x918: 0x0008, 0x919: 0x0008, 0x91a: 0x0008, 0x91b: 0x0008, 0x91c: 0x0008, 0x91d: 0x0008,
+	0x91e: 0x0008, 0x91f: 0x0008, 0x920: 0x0008, 0x921: 0x0008, 0x922: 0x0008, 0x923: 0x0008,
+	0x924: 0x0040, 0x925: 0x0008, 0x926: 0x0040, 0x927: 0x0008, 0x928: 0x0008, 0x929: 0x0008,
+	0x92a: 0x0008, 0x92b: 0x0008, 0x92c: 0x0008, 0x92d: 0x0008, 0x92e: 0x0008, 0x92f: 0x0008,
+	0x930: 0x0008, 0x931: 0x3308, 0x932: 0x0008, 0x933: 0x0929, 0x934: 0x3308, 0x935: 0x3308,
+	0x936: 0x3308, 0x937: 0x3308, 0x938: 0x3308, 0x939: 0x3308, 0x93a: 0x3b08, 0x93b: 0x3308,
+	0x93c: 0x3308, 0x93d: 0x0008, 0x93e: 0x0040, 0x93f: 0x0040,
+	// Block 0x25, offset 0x940
+	0x940: 0x0008, 0x941: 0x0008, 0x942: 0x0008, 0x943: 0x09d1, 0x944: 0x0008, 0x945: 0x0008,
+	0x946: 0x0008, 0x947: 0x0008, 0x948: 0x0040, 0x949: 0x0008, 0x94a: 0x0008, 0x94b: 0x0008,
+	0x94c: 0x0008, 0x94d: 0x0a09, 0x94e: 0x0008, 0x94f: 0x0008, 0x950: 0x0008, 0x951: 0x0008,
+	0x952: 0x0a41, 0x953: 0x0008, 0x954: 0x0008, 0x955: 0x0008, 0x956: 0x0008, 0x957: 0x0a79,
+	0x958: 0x0008, 0x959: 0x0008, 0x95a: 0x0008, 0x95b: 0x0008, 0x95c: 0x0ab1, 0x95d: 0x0008,
+	0x95e: 0x0008, 0x95f: 0x0008, 0x960: 0x0008, 0x961: 0x0008, 0x962: 0x0008, 0x963: 0x0008,
+	0x964: 0x0008, 0x965: 0x0008, 0x966: 0x0008, 0x967: 0x0008, 0x968: 0x0008, 0x969: 0x0ae9,
+	0x96a: 0x0008, 0x96b: 0x0008, 0x96c: 0x0008, 0x96d: 0x0040, 0x96e: 0x0040, 0x96f: 0x0040,
+	0x970: 0x0040, 0x971: 0x3308, 0x972: 0x3308, 0x973: 0x0b21, 0x974: 0x3308, 0x975: 0x0b59,
+	0x976: 0x0b91, 0x977: 0x0bc9, 0x978: 0x0c19, 0x979: 0x0c51, 0x97a: 0x3308, 0x97b: 0x3308,
+	0x97c: 0x3308, 0x97d: 0x3308, 0x97e: 0x3308, 0x97f: 0x3008,
+	// Block 0x26, offset 0x980
+	0x980: 0x3308, 0x981: 0x0ca1, 0x982: 0x3308, 0x983: 0x3308, 0x984: 0x3b08, 0x985: 0x0018,
+	0x986: 0x3308, 0x987: 0x3308, 0x988: 0x0008, 0x989: 0x0008, 0x98a: 0x0008, 0x98b: 0x0008,
+	0x98c: 0x0008, 0x98d: 0x3308, 0x98e: 0x3308, 0x98f: 0x3308, 0x990: 0x3308, 0x991: 0x3308,
+	0x992: 0x3308, 0x993: 0x0cd9, 0x994: 0x3308, 0x995: 0x3308, 0x996: 0x3308, 0x997: 0x3308,
+	0x998: 0x0040, 0x999: 0x3308, 0x99a: 0x3308, 0x99b: 0x3308, 0x99c: 0x3308, 0x99d: 0x0d11,
+	0x99e: 0x3308, 0x99f: 0x3308, 0x9a0: 0x3308, 0x9a1: 0x3308, 0x9a2: 0x0d49, 0x9a3: 0x3308,
+	0x9a4: 0x3308, 0x9a5: 0x3308, 0x9a6: 0x3308, 0x9a7: 0x0d81, 0x9a8: 0x3308, 0x9a9: 0x3308,
+	0x9aa: 0x3308, 0x9ab: 0x3308, 0x9ac: 0x0db9, 0x9ad: 0x3308, 0x9ae: 0x3308, 0x9af: 0x3308,
+	0x9b0: 0x3308, 0x9b1: 0x3308, 0x9b2: 0x3308, 0x9b3: 0x3308, 0x9b4: 0x3308, 0x9b5: 0x3308,
+	0x9b6: 0x3308, 0x9b7: 0x3308, 0x9b8: 0x3308, 0x9b9: 0x0df1, 0x9ba: 0x3308, 0x9bb: 0x3308,
+	0x9bc: 0x3308, 0x9bd: 0x0040, 0x9be: 0x0018, 0x9bf: 0x0018,
+	// Block 0x27, offset 0x9c0
+	0x9c0: 0x0008, 0x9c1: 0x0008, 0x9c2: 0x0008, 0x9c3: 0x0008, 0x9c4: 0x0008, 0x9c5: 0x0008,
+	0x9c6: 0x0008, 0x9c7: 0x0008, 0x9c8: 0x0008, 0x9c9: 0x0008, 0x9ca: 0x0008, 0x9cb: 0x0008,
+	0x9cc: 0x0008, 0x9cd: 0x0008, 0x9ce: 0x0008, 0x9cf: 0x0008, 0x9d0: 0x0008, 0x9d1: 0x0008,
+	0x9d2: 0x0008, 0x9d3: 0x0008, 0x9d4: 0x0008, 0x9d5: 0x0008, 0x9d6: 0x0008, 0x9d7: 0x0008,
+	0x9d8: 0x0008, 0x9d9: 0x0008, 0x9da: 0x0008, 0x9db: 0x0008, 0x9dc: 0x0008, 0x9dd: 0x0008,
+	0x9de: 0x0008, 0x9df: 0x0008, 0x9e0: 0x0008, 0x9e1: 0x0008, 0x9e2: 0x0008, 0x9e3: 0x0008,
+	0x9e4: 0x0008, 0x9e5: 0x0008, 0x9e6: 0x0008, 0x9e7: 0x0008, 0x9e8: 0x0008, 0x9e9: 0x0008,
+	0x9ea: 0x0008, 0x9eb: 0x0008, 0x9ec: 0x0039, 0x9ed: 0x0ed1, 0x9ee: 0x0ee9, 0x9ef: 0x0008,
+	0x9f0: 0x0ef9, 0x9f1: 0x0f09, 0x9f2: 0x0f19, 0x9f3: 0x0f31, 0x9f4: 0x0249, 0x9f5: 0x0f41,
+	0x9f6: 0x0259, 0x9f7: 0x0f51, 0x9f8: 0x0359, 0x9f9: 0x0f61, 0x9fa: 0x0f71, 0x9fb: 0x0008,
+	0x9fc: 0x00d9, 0x9fd: 0x0f81, 0x9fe: 0x0f99, 0x9ff: 0x0269,
+	// Block 0x28, offset 0xa00
+	0xa00: 0x0fa9, 0xa01: 0x0fb9, 0xa02: 0x0279, 0xa03: 0x0039, 0xa04: 0x0fc9, 0xa05: 0x0fe1,
+	0xa06: 0x05b5, 0xa07: 0x0ee9, 0xa08: 0x0ef9, 0xa09: 0x0f09, 0xa0a: 0x0ff9, 0xa0b: 0x1011,
+	0xa0c: 0x1029, 0xa0d: 0x0f31, 0xa0e: 0x0008, 0xa0f: 0x0f51, 0xa10: 0x0f61, 0xa11: 0x1041,
+	0xa12: 0x00d9, 0xa13: 0x1059, 0xa14: 0x05cd, 0xa15: 0x05cd, 0xa16: 0x0f99, 0xa17: 0x0fa9,
+	0xa18: 0x0fb9, 0xa19: 0x05b5, 0xa1a: 0x1071, 0xa1b: 0x1089, 0xa1c: 0x05e5, 0xa1d: 0x1099,
+	0xa1e: 0x10b1, 0xa1f: 0x10c9, 0xa20: 0x10e1, 0xa21: 0x10f9, 0xa22: 0x0f41, 0xa23: 0x0269,
+	0xa24: 0x0fb9, 0xa25: 0x1089, 0xa26: 0x1099, 0xa27: 0x10b1, 0xa28: 0x1111, 0xa29: 0x10e1,
+	0xa2a: 0x10f9, 0xa2b: 0x0008, 0xa2c: 0x0008, 0xa2d: 0x0008, 0xa2e: 0x0008, 0xa2f: 0x0008,
+	0xa30: 0x0008, 0xa31: 0x0008, 0xa32: 0x0008, 0xa33: 0x0008, 0xa34: 0x0008, 0xa35: 0x0008,
+	0xa36: 0x0008, 0xa37: 0x0008, 0xa38: 0x1129, 0xa39: 0x0008, 0xa3a: 0x0008, 0xa3b: 0x0008,
+	0xa3c: 0x0008, 0xa3d: 0x0008, 0xa3e: 0x0008, 0xa3f: 0x0008,
+	// Block 0x29, offset 0xa40
+	0xa40: 0x0008, 0xa41: 0x0008, 0xa42: 0x0008, 0xa43: 0x0008, 0xa44: 0x0008, 0xa45: 0x0008,
+	0xa46: 0x0008, 0xa47: 0x0008, 0xa48: 0x0008, 0xa49: 0x0008, 0xa4a: 0x0008, 0xa4b: 0x0008,
+	0xa4c: 0x0008, 0xa4d: 0x0008, 0xa4e: 0x0008, 0xa4f: 0x0008, 0xa50: 0x0008, 0xa51: 0x0008,
+	0xa52: 0x0008, 0xa53: 0x0008, 0xa54: 0x0008, 0xa55: 0x0008, 0xa56: 0x0008, 0xa57: 0x0008,
+	0xa58: 0x0008, 0xa59: 0x0008, 0xa5a: 0x0008, 0xa5b: 0x1141, 0xa5c: 0x1159, 0xa5d: 0x1169,
+	0xa5e: 0x1181, 0xa5f: 0x1029, 0xa60: 0x1199, 0xa61: 0x11a9, 0xa62: 0x11c1, 0xa63: 0x11d9,
+	0xa64: 0x11f1, 0xa65: 0x1209, 0xa66: 0x1221, 0xa67: 0x05fd, 0xa68: 0x1239, 0xa69: 0x1251,
+	0xa6a: 0xe17d, 0xa6b: 0x1269, 0xa6c: 0x1281, 0xa6d: 0x1299, 0xa6e: 0x12b1, 0xa6f: 0x12c9,
+	0xa70: 0x12e1, 0xa71: 0x12f9, 0xa72: 0x1311, 0xa73: 0x1329, 0xa74: 0x1341, 0xa75: 0x1359,
+	0xa76: 0x1371, 0xa77: 0x1389, 0xa78: 0x0615, 0xa79: 0x13a1, 0xa7a: 0x13b9, 0xa7b: 0x13d1,
+	0xa7c: 0x13e1, 0xa7d: 0x13f9, 0xa7e: 0x1411, 0xa7f: 0x1429,
+	// Block 0x2a, offset 0xa80
+	0xa80: 0xe00d, 0xa81: 0x0008, 0xa82: 0xe00d, 0xa83: 0x0008, 0xa84: 0xe00d, 0xa85: 0x0008,
+	0xa86: 0xe00d, 0xa87: 0x0008, 0xa88: 0xe00d, 0xa89: 0x0008, 0xa8a: 0xe00d, 0xa8b: 0x0008,
+	0xa8c: 0xe00d, 0xa8d: 0x0008, 0xa8e: 0xe00d, 0xa8f: 0x0008, 0xa90: 0xe00d, 0xa91: 0x0008,
+	0xa92: 0xe00d, 0xa93: 0x0008, 0xa94: 0xe00d, 0xa95: 0x0008, 0xa96: 0xe00d, 0xa97: 0x0008,
+	0xa98: 0xe00d, 0xa99: 0x0008, 0xa9a: 0xe00d, 0xa9b: 0x0008, 0xa9c: 0xe00d, 0xa9d: 0x0008,
+	0xa9e: 0xe00d, 0xa9f: 0x0008, 0xaa0: 0xe00d, 0xaa1: 0x0008, 0xaa2: 0xe00d, 0xaa3: 0x0008,
+	0xaa4: 0xe00d, 0xaa5: 0x0008, 0xaa6: 0xe00d, 0xaa7: 0x0008, 0xaa8: 0xe00d, 0xaa9: 0x0008,
+	0xaaa: 0xe00d, 0xaab: 0x0008, 0xaac: 0xe00d, 0xaad: 0x0008, 0xaae: 0xe00d, 0xaaf: 0x0008,
+	0xab0: 0xe00d, 0xab1: 0x0008, 0xab2: 0xe00d, 0xab3: 0x0008, 0xab4: 0xe00d, 0xab5: 0x0008,
+	0xab6: 0xe00d, 0xab7: 0x0008, 0xab8: 0xe00d, 0xab9: 0x0008, 0xaba: 0xe00d, 0xabb: 0x0008,
+	0xabc: 0xe00d, 0xabd: 0x0008, 0xabe: 0xe00d, 0xabf: 0x0008,
+	// Block 0x2b, offset 0xac0
+	0xac0: 0xe00d, 0xac1: 0x0008, 0xac2: 0xe00d, 0xac3: 0x0008, 0xac4: 0xe00d, 0xac5: 0x0008,
+	0xac6: 0xe00d, 0xac7: 0x0008, 0xac8: 0xe00d, 0xac9: 0x0008, 0xaca: 0xe00d, 0xacb: 0x0008,
+	0xacc: 0xe00d, 0xacd: 0x0008, 0xace: 0xe00d, 0xacf: 0x0008, 0xad0: 0xe00d, 0xad1: 0x0008,
+	0xad2: 0xe00d, 0xad3: 0x0008, 0xad4: 0xe00d, 0xad5: 0x0008, 0xad6: 0x0008, 0xad7: 0x0008,
+	0xad8: 0x0008, 0xad9: 0x0008, 0xada: 0x062d, 0xadb: 0x064d, 0xadc: 0x0008, 0xadd: 0x0008,
+	0xade: 0x1441, 0xadf: 0x0008, 0xae0: 0xe00d, 0xae1: 0x0008, 0xae2: 0xe00d, 0xae3: 0x0008,
+	0xae4: 0xe00d, 0xae5: 0x0008, 0xae6: 0xe00d, 0xae7: 0x0008, 0xae8: 0xe00d, 0xae9: 0x0008,
+	0xaea: 0xe00d, 0xaeb: 0x0008, 0xaec: 0xe00d, 0xaed: 0x0008, 0xaee: 0xe00d, 0xaef: 0x0008,
+	0xaf0: 0xe00d, 0xaf1: 0x0008, 0xaf2: 0xe00d, 0xaf3: 0x0008, 0xaf4: 0xe00d, 0xaf5: 0x0008,
+	0xaf6: 0xe00d, 0xaf7: 0x0008, 0xaf8: 0xe00d, 0xaf9: 0x0008, 0xafa: 0xe00d, 0xafb: 0x0008,
+	0xafc: 0xe00d, 0xafd: 0x0008, 0xafe: 0xe00d, 0xaff: 0x0008,
+	// Block 0x2c, offset 0xb00
+	0xb00: 0x0008, 0xb01: 0x0008, 0xb02: 0x0008, 0xb03: 0x0008, 0xb04: 0x0008, 0xb05: 0x0008,
+	0xb06: 0x0040, 0xb07: 0x0040, 0xb08: 0xe045, 0xb09: 0xe045, 0xb0a: 0xe045, 0xb0b: 0xe045,
+	0xb0c: 0xe045, 0xb0d: 0xe045, 0xb0e: 0x0040, 0xb0f: 0x0040, 0xb10: 0x0008, 0xb11: 0x0008,
+	0xb12: 0x0008, 0xb13: 0x0008, 0xb14: 0x0008, 0xb15: 0x0008, 0xb16: 0x0008, 0xb17: 0x0008,
+	0xb18: 0x0040, 0xb19: 0xe045, 0xb1a: 0x0040, 0xb1b: 0xe045, 0xb1c: 0x0040, 0xb1d: 0xe045,
+	0xb1e: 0x0040, 0xb1f: 0xe045, 0xb20: 0x0008, 0xb21: 0x0008, 0xb22: 0x0008, 0xb23: 0x0008,
+	0xb24: 0x0008, 0xb25: 0x0008, 0xb26: 0x0008, 0xb27: 0x0008, 0xb28: 0xe045, 0xb29: 0xe045,
+	0xb2a: 0xe045, 0xb2b: 0xe045, 0xb2c: 0xe045, 0xb2d: 0xe045, 0xb2e: 0xe045, 0xb2f: 0xe045,
+	0xb30: 0x0008, 0xb31: 0x1459, 0xb32: 0x0008, 0xb33: 0x1471, 0xb34: 0x0008, 0xb35: 0x1489,
+	0xb36: 0x0008, 0xb37: 0x14a1, 0xb38: 0x0008, 0xb39: 0x14b9, 0xb3a: 0x0008, 0xb3b: 0x14d1,
+	0xb3c: 0x0008, 0xb3d: 0x14e9, 0xb3e: 0x0040, 0xb3f: 0x0040,
+	// Block 0x2d, offset 0xb40
+	0xb40: 0x1501, 0xb41: 0x1531, 0xb42: 0x1561, 0xb43: 0x1591, 0xb44: 0x15c1, 0xb45: 0x15f1,
+	0xb46: 0x1621, 0xb47: 0x1651, 0xb48: 0x1501, 0xb49: 0x1531, 0xb4a: 0x1561, 0xb4b: 0x1591,
+	0xb4c: 0x15c1, 0xb4d: 0x15f1, 0xb4e: 0x1621, 0xb4f: 0x1651, 0xb50: 0x1681, 0xb51: 0x16b1,
+	0xb52: 0x16e1, 0xb53: 0x1711, 0xb54: 0x1741, 0xb55: 0x1771, 0xb56: 0x17a1, 0xb57: 0x17d1,
+	0xb58: 0x1681, 0xb59: 0x16b1, 0xb5a: 0x16e1, 0xb5b: 0x1711, 0xb5c: 0x1741, 0xb5d: 0x1771,
+	0xb5e: 0x17a1, 0xb5f: 0x17d1, 0xb60: 0x1801, 0xb61: 0x1831, 0xb62: 0x1861, 0xb63: 0x1891,
+	0xb64: 0x18c1, 0xb65: 0x18f1, 0xb66: 0x1921, 0xb67: 0x1951, 0xb68: 0x1801, 0xb69: 0x1831,
+	0xb6a: 0x1861, 0xb6b: 0x1891, 0xb6c: 0x18c1, 0xb6d: 0x18f1, 0xb6e: 0x1921, 0xb6f: 0x1951,
+	0xb70: 0x0008, 0xb71: 0x0008, 0xb72: 0x1981, 0xb73: 0x19b1, 0xb74: 0x19d9, 0xb75: 0x0040,
+	0xb76: 0x0008, 0xb77: 0x1a01, 0xb78: 0xe045, 0xb79: 0xe045, 0xb7a: 0x0665, 0xb7b: 0x1459,
+	0xb7c: 0x19b1, 0xb7d: 0x067e, 0xb7e: 0x1a31, 0xb7f: 0x069e,
+	// Block 0x2e, offset 0xb80
+	0xb80: 0x06be, 0xb81: 0x1a4a, 0xb82: 0x1a79, 0xb83: 0x1aa9, 0xb84: 0x1ad1, 0xb85: 0x0040,
+	0xb86: 0x0008, 0xb87: 0x1af9, 0xb88: 0x06dd, 0xb89: 0x1471, 0xb8a: 0x06f5, 0xb8b: 0x1489,
+	0xb8c: 0x1aa9, 0xb8d: 0x1b2a, 0xb8e: 0x1b5a, 0xb8f: 0x1b8a, 0xb90: 0x0008, 0xb91: 0x0008,
+	0xb92: 0x0008, 0xb93: 0x1bb9, 0xb94: 0x0040, 0xb95: 0x0040, 0xb96: 0x0008, 0xb97: 0x0008,
+	0xb98: 0xe045, 0xb99: 0xe045, 0xb9a: 0x070d, 0xb9b: 0x14a1, 0xb9c: 0x0040, 0xb9d: 0x1bd2,
+	0xb9e: 0x1c02, 0xb9f: 0x1c32, 0xba0: 0x0008, 0xba1: 0x0008, 0xba2: 0x0008, 0xba3: 0x1c61,
+	0xba4: 0x0008, 0xba5: 0x0008, 0xba6: 0x0008, 0xba7: 0x0008, 0xba8: 0xe045, 0xba9: 0xe045,
+	0xbaa: 0x0725, 0xbab: 0x14d1, 0xbac: 0xe04d, 0xbad: 0x1c7a, 0xbae: 0x03d2, 0xbaf: 0x1caa,
+	0xbb0: 0x0040, 0xbb1: 0x0040, 0xbb2: 0x1cb9, 0xbb3: 0x1ce9, 0xbb4: 0x1d11, 0xbb5: 0x0040,
+	0xbb6: 0x0008, 0xbb7: 0x1d39, 0xbb8: 0x073d, 0xbb9: 0x14b9, 0xbba: 0x0515, 0xbbb: 0x14e9,
+	0xbbc: 0x1ce9, 0xbbd: 0x0756, 0xbbe: 0x0776, 0xbbf: 0x0040,
+	// Block 0x2f, offset 0xbc0
+	0xbc0: 0x000a, 0xbc1: 0x000a, 0xbc2: 0x000a, 0xbc3: 0x000a, 0xbc4: 0x000a, 0xbc5: 0x000a,
+	0xbc6: 0x000a, 0xbc7: 0x000a, 0xbc8: 0x000a, 0xbc9: 0x000a, 0xbca: 0x000a, 0xbcb: 0x03c0,
+	0xbcc: 0x0003, 0xbcd: 0x0003, 0xbce: 0x0340, 0xbcf: 0x0b40, 0xbd0: 0x0018, 0xbd1: 0xe00d,
+	0xbd2: 0x0018, 0xbd3: 0x0018, 0xbd4: 0x0018, 0xbd5: 0x0018, 0xbd6: 0x0018, 0xbd7: 0x0796,
+	0xbd8: 0x0018, 0xbd9: 0x0018, 0xbda: 0x0018, 0xbdb: 0x0018, 0xbdc: 0x0018, 0xbdd: 0x0018,
+	0xbde: 0x0018, 0xbdf: 0x0018, 0xbe0: 0x0018, 0xbe1: 0x0018, 0xbe2: 0x0018, 0xbe3: 0x0018,
+	0xbe4: 0x0040, 0xbe5: 0x0040, 0xbe6: 0x0040, 0xbe7: 0x0018, 0xbe8: 0x0040, 0xbe9: 0x0040,
+	0xbea: 0x0340, 0xbeb: 0x0340, 0xbec: 0x0340, 0xbed: 0x0340, 0xbee: 0x0340, 0xbef: 0x000a,
+	0xbf0: 0x0018, 0xbf1: 0x0018, 0xbf2: 0x0018, 0xbf3: 0x1d69, 0xbf4: 0x1da1, 0xbf5: 0x0018,
+	0xbf6: 0x1df1, 0xbf7: 0x1e29, 0xbf8: 0x0018, 0xbf9: 0x0018, 0xbfa: 0x0018, 0xbfb: 0x0018,
+	0xbfc: 0x1e7a, 0xbfd: 0x0018, 0xbfe: 0x07b6, 0xbff: 0x0018,
+	// Block 0x30, offset 0xc00
+	0xc00: 0x0018, 0xc01: 0x0018, 0xc02: 0x0018, 0xc03: 0x0018, 0xc04: 0x0018, 0xc05: 0x0018,
+	0xc06: 0x0018, 0xc07: 0x1e92, 0xc08: 0x1eaa, 0xc09: 0x1ec2, 0xc0a: 0x0018, 0xc0b: 0x0018,
+	0xc0c: 0x0018, 0xc0d: 0x0018, 0xc0e: 0x0018, 0xc0f: 0x0018, 0xc10: 0x0018, 0xc11: 0x0018,
+	0xc12: 0x0018, 0xc13: 0x0018, 0xc14: 0x0018, 0xc15: 0x0018, 0xc16: 0x0018, 0xc17: 0x1ed9,
+	0xc18: 0x0018, 0xc19: 0x0018, 0xc1a: 0x0018, 0xc1b: 0x0018, 0xc1c: 0x0018, 0xc1d: 0x0018,
+	0xc1e: 0x0018, 0xc1f: 0x000a, 0xc20: 0x03c0, 0xc21: 0x0340, 0xc22: 0x0340, 0xc23: 0x0340,
+	0xc24: 0x03c0, 0xc25: 0x0040, 0xc26: 0x0040, 0xc27: 0x0040, 0xc28: 0x0040, 0xc29: 0x0040,
+	0xc2a: 0x0340, 0xc2b: 0x0340, 0xc2c: 0x0340, 0xc2d: 0x0340, 0xc2e: 0x0340, 0xc2f: 0x0340,
+	0xc30: 0x1f41, 0xc31: 0x0f41, 0xc32: 0x0040, 0xc33: 0x0040, 0xc34: 0x1f51, 0xc35: 0x1f61,
+	0xc36: 0x1f71, 0xc37: 0x1f81, 0xc38: 0x1f91, 0xc39: 0x1fa1, 0xc3a: 0x1fb2, 0xc3b: 0x07d5,
+	0xc3c: 0x1fc2, 0xc3d: 0x1fd2, 0xc3e: 0x1fe2, 0xc3f: 0x0f71,
+	// Block 0x31, offset 0xc40
+	0xc40: 0x1f41, 0xc41: 0x00c9, 0xc42: 0x0069, 0xc43: 0x0079, 0xc44: 0x1f51, 0xc45: 0x1f61,
+	0xc46: 0x1f71, 0xc47: 0x1f81, 0xc48: 0x1f91, 0xc49: 0x1fa1, 0xc4a: 0x1fb2, 0xc4b: 0x07ed,
+	0xc4c: 0x1fc2, 0xc4d: 0x1fd2, 0xc4e: 0x1fe2, 0xc4f: 0x0040, 0xc50: 0x0039, 0xc51: 0x0f09,
+	0xc52: 0x00d9, 0xc53: 0x0369, 0xc54: 0x0ff9, 0xc55: 0x0249, 0xc56: 0x0f51, 0xc57: 0x0359,
+	0xc58: 0x0f61, 0xc59: 0x0f71, 0xc5a: 0x0f99, 0xc5b: 0x01d9, 0xc5c: 0x0fa9, 0xc5d: 0x0040,
+	0xc5e: 0x0040, 0xc5f: 0x0040, 0xc60: 0x0018, 0xc61: 0x0018, 0xc62: 0x0018, 0xc63: 0x0018,
+	0xc64: 0x0018, 0xc65: 0x0018, 0xc66: 0x0018, 0xc67: 0x0018, 0xc68: 0x1ff1, 0xc69: 0x0018,
+	0xc6a: 0x0018, 0xc6b: 0x0018, 0xc6c: 0x0018, 0xc6d: 0x0018, 0xc6e: 0x0018, 0xc6f: 0x0018,
+	0xc70: 0x0018, 0xc71: 0x0018, 0xc72: 0x0018, 0xc73: 0x0018, 0xc74: 0x0018, 0xc75: 0x0018,
+	0xc76: 0x0018, 0xc77: 0x0018, 0xc78: 0x0018, 0xc79: 0x0018, 0xc7a: 0x0018, 0xc7b: 0x0018,
+	0xc7c: 0x0018, 0xc7d: 0x0018, 0xc7e: 0x0018, 0xc7f: 0x0018,
+	// Block 0x32, offset 0xc80
+	0xc80: 0x0806, 0xc81: 0x0826, 0xc82: 0x1159, 0xc83: 0x0845, 0xc84: 0x0018, 0xc85: 0x0866,
+	0xc86: 0x0886, 0xc87: 0x1011, 0xc88: 0x0018, 0xc89: 0x08a5, 0xc8a: 0x0f31, 0xc8b: 0x0249,
+	0xc8c: 0x0249, 0xc8d: 0x0249, 0xc8e: 0x0249, 0xc8f: 0x2009, 0xc90: 0x0f41, 0xc91: 0x0f41,
+	0xc92: 0x0359, 0xc93: 0x0359, 0xc94: 0x0018, 0xc95: 0x0f71, 0xc96: 0x2021, 0xc97: 0x0018,
+	0xc98: 0x0018, 0xc99: 0x0f99, 0xc9a: 0x2039, 0xc9b: 0x0269, 0xc9c: 0x0269, 0xc9d: 0x0269,
+	0xc9e: 0x0018, 0xc9f: 0x0018, 0xca0: 0x2049, 0xca1: 0x08c5, 0xca2: 0x2061, 0xca3: 0x0018,
+	0xca4: 0x13d1, 0xca5: 0x0018, 0xca6: 0x2079, 0xca7: 0x0018, 0xca8: 0x13d1, 0xca9: 0x0018,
+	0xcaa: 0x0f51, 0xcab: 0x2091, 0xcac: 0x0ee9, 0xcad: 0x1159, 0xcae: 0x0018, 0xcaf: 0x0f09,
+	0xcb0: 0x0f09, 0xcb1: 0x1199, 0xcb2: 0x0040, 0xcb3: 0x0f61, 0xcb4: 0x00d9, 0xcb5: 0x20a9,
+	0xcb6: 0x20c1, 0xcb7: 0x20d9, 0xcb8: 0x20f1, 0xcb9: 0x0f41, 0xcba: 0x0018, 0xcbb: 0x08e5,
+	0xcbc: 0x2109, 0xcbd: 0x10b1, 0xcbe: 0x10b1, 0xcbf: 0x2109,
+	// Block 0x33, offset 0xcc0
+	0xcc0: 0x0905, 0xcc1: 0x0018, 0xcc2: 0x0018, 0xcc3: 0x0018, 0xcc4: 0x0018, 0xcc5: 0x0ef9,
+	0xcc6: 0x0ef9, 0xcc7: 0x0f09, 0xcc8: 0x0f41, 0xcc9: 0x0259, 0xcca: 0x0018, 0xccb: 0x0018,
+	0xccc: 0x0018, 0xccd: 0x0018, 0xcce: 0x0008, 0xccf: 0x0018, 0xcd0: 0x2121, 0xcd1: 0x2151,
+	0xcd2: 0x2181, 0xcd3: 0x21b9, 0xcd4: 0x21e9, 0xcd5: 0x2219, 0xcd6: 0x2249, 0xcd7: 0x2279,
+	0xcd8: 0x22a9, 0xcd9: 0x22d9, 0xcda: 0x2309, 0xcdb: 0x2339, 0xcdc: 0x2369, 0xcdd: 0x2399,
+	0xcde: 0x23c9, 0xcdf: 0x23f9, 0xce0: 0x0f41, 0xce1: 0x2421, 0xce2: 0x091d, 0xce3: 0x2439,
+	0xce4: 0x1089, 0xce5: 0x2451, 0xce6: 0x093d, 0xce7: 0x2469, 0xce8: 0x2491, 0xce9: 0x0369,
+	0xcea: 0x24a9, 0xceb: 0x095d, 0xcec: 0x0359, 0xced: 0x1159, 0xcee: 0x0ef9, 0xcef: 0x0f61,
+	0xcf0: 0x0f41, 0xcf1: 0x2421, 0xcf2: 0x097d, 0xcf3: 0x2439, 0xcf4: 0x1089, 0xcf5: 0x2451,
+	0xcf6: 0x099d, 0xcf7: 0x2469, 0xcf8: 0x2491, 0xcf9: 0x0369, 0xcfa: 0x24a9, 0xcfb: 0x09bd,
+	0xcfc: 0x0359, 0xcfd: 0x1159, 0xcfe: 0x0ef9, 0xcff: 0x0f61,
+	// Block 0x34, offset 0xd00
+	0xd00: 0x0018, 0xd01: 0x0018, 0xd02: 0x0018, 0xd03: 0x0018, 0xd04: 0x0018, 0xd05: 0x0018,
+	0xd06: 0x0018, 0xd07: 0x0018, 0xd08: 0x0018, 0xd09: 0x0018, 0xd0a: 0x0018, 0xd0b: 0x0040,
+	0xd0c: 0x0040, 0xd0d: 0x0040, 0xd0e: 0x0040, 0xd0f: 0x0040, 0xd10: 0x0040, 0xd11: 0x0040,
+	0xd12: 0x0040, 0xd13: 0x0040, 0xd14: 0x0040, 0xd15: 0x0040, 0xd16: 0x0040, 0xd17: 0x0040,
+	0xd18: 0x0040, 0xd19: 0x0040, 0xd1a: 0x0040, 0xd1b: 0x0040, 0xd1c: 0x0040, 0xd1d: 0x0040,
+	0xd1e: 0x0040, 0xd1f: 0x0040, 0xd20: 0x00c9, 0xd21: 0x0069, 0xd22: 0x0079, 0xd23: 0x1f51,
+	0xd24: 0x1f61, 0xd25: 0x1f71, 0xd26: 0x1f81, 0xd27: 0x1f91, 0xd28: 0x1fa1, 0xd29: 0x2601,
+	0xd2a: 0x2619, 0xd2b: 0x2631, 0xd2c: 0x2649, 0xd2d: 0x2661, 0xd2e: 0x2679, 0xd2f: 0x2691,
+	0xd30: 0x26a9, 0xd31: 0x26c1, 0xd32: 0x26d9, 0xd33: 0x26f1, 0xd34: 0x0a1e, 0xd35: 0x0a3e,
+	0xd36: 0x0a5e, 0xd37: 0x0a7e, 0xd38: 0x0a9e, 0xd39: 0x0abe, 0xd3a: 0x0ade, 0xd3b: 0x0afe,
+	0xd3c: 0x0b1e, 0xd3d: 0x270a, 0xd3e: 0x2732, 0xd3f: 0x275a,
+	// Block 0x35, offset 0xd40
+	0xd40: 0x2782, 0xd41: 0x27aa, 0xd42: 0x27d2, 0xd43: 0x27fa, 0xd44: 0x2822, 0xd45: 0x284a,
+	0xd46: 0x2872, 0xd47: 0x289a, 0xd48: 0x0040, 0xd49: 0x0040, 0xd4a: 0x0040, 0xd4b: 0x0040,
+	0xd4c: 0x0040, 0xd4d: 0x0040, 0xd4e: 0x0040, 0xd4f: 0x0040, 0xd50: 0x0040, 0xd51: 0x0040,
+	0xd52: 0x0040, 0xd53: 0x0040, 0xd54: 0x0040, 0xd55: 0x0040, 0xd56: 0x0040, 0xd57: 0x0040,
+	0xd58: 0x0040, 0xd59: 0x0040, 0xd5a: 0x0040, 0xd5b: 0x0040, 0xd5c: 0x0b3e, 0xd5d: 0x0b5e,
+	0xd5e: 0x0b7e, 0xd5f: 0x0b9e, 0xd60: 0x0bbe, 0xd61: 0x0bde, 0xd62: 0x0bfe, 0xd63: 0x0c1e,
+	0xd64: 0x0c3e, 0xd65: 0x0c5e, 0xd66: 0x0c7e, 0xd67: 0x0c9e, 0xd68: 0x0cbe, 0xd69: 0x0cde,
+	0xd6a: 0x0cfe, 0xd6b: 0x0d1e, 0xd6c: 0x0d3e, 0xd6d: 0x0d5e, 0xd6e: 0x0d7e, 0xd6f: 0x0d9e,
+	0xd70: 0x0dbe, 0xd71: 0x0dde, 0xd72: 0x0dfe, 0xd73: 0x0e1e, 0xd74: 0x0e3e, 0xd75: 0x0e5e,
+	0xd76: 0x0039, 0xd77: 0x0ee9, 0xd78: 0x1159, 0xd79: 0x0ef9, 0xd7a: 0x0f09, 0xd7b: 0x1199,
+	0xd7c: 0x0f31, 0xd7d: 0x0249, 0xd7e: 0x0f41, 0xd7f: 0x0259,
+	// Block 0x36, offset 0xd80
+	0xd80: 0x0f51, 0xd81: 0x0359, 0xd82: 0x0f61, 0xd83: 0x0f71, 0xd84: 0x00d9, 0xd85: 0x0f99,
+	0xd86: 0x2039, 0xd87: 0x0269, 0xd88: 0x01d9, 0xd89: 0x0fa9, 0xd8a: 0x0fb9, 0xd8b: 0x1089,
+	0xd8c: 0x0279, 0xd8d: 0x0369, 0xd8e: 0x0289, 0xd8f: 0x13d1, 0xd90: 0x0039, 0xd91: 0x0ee9,
+	0xd92: 0x1159, 0xd93: 0x0ef9, 0xd94: 0x0f09, 0xd95: 0x1199, 0xd96: 0x0f31, 0xd97: 0x0249,
+	0xd98: 0x0f41, 0xd99: 0x0259, 0xd9a: 0x0f51, 0xd9b: 0x0359, 0xd9c: 0x0f61, 0xd9d: 0x0f71,
+	0xd9e: 0x00d9, 0xd9f: 0x0f99, 0xda0: 0x2039, 0xda1: 0x0269, 0xda2: 0x01d9, 0xda3: 0x0fa9,
+	0xda4: 0x0fb9, 0xda5: 0x1089, 0xda6: 0x0279, 0xda7: 0x0369, 0xda8: 0x0289, 0xda9: 0x13d1,
+	0xdaa: 0x1f41, 0xdab: 0x0018, 0xdac: 0x0018, 0xdad: 0x0018, 0xdae: 0x0018, 0xdaf: 0x0018,
+	0xdb0: 0x0018, 0xdb1: 0x0018, 0xdb2: 0x0018, 0xdb3: 0x0018, 0xdb4: 0x0018, 0xdb5: 0x0018,
+	0xdb6: 0x0018, 0xdb7: 0x0018, 0xdb8: 0x0018, 0xdb9: 0x0018, 0xdba: 0x0018, 0xdbb: 0x0018,
+	0xdbc: 0x0018, 0xdbd: 0x0018, 0xdbe: 0x0018, 0xdbf: 0x0018,
+	// Block 0x37, offset 0xdc0
+	0xdc0: 0x0008, 0xdc1: 0x0008, 0xdc2: 0x0008, 0xdc3: 0x0008, 0xdc4: 0x0008, 0xdc5: 0x0008,
+	0xdc6: 0x0008, 0xdc7: 0x0008, 0xdc8: 0x0008, 0xdc9: 0x0008, 0xdca: 0x0008, 0xdcb: 0x0008,
+	0xdcc: 0x0008, 0xdcd: 0x0008, 0xdce: 0x0008, 0xdcf: 0x0008, 0xdd0: 0x0008, 0xdd1: 0x0008,
+	0xdd2: 0x0008, 0xdd3: 0x0008, 0xdd4: 0x0008, 0xdd5: 0x0008, 0xdd6: 0x0008, 0xdd7: 0x0008,
+	0xdd8: 0x0008, 0xdd9: 0x0008, 0xdda: 0x0008, 0xddb: 0x0008, 0xddc: 0x0008, 0xddd: 0x0008,
+	0xdde: 0x0008, 0xddf: 0x0040, 0xde0: 0xe00d, 0xde1: 0x0008, 0xde2: 0x2971, 0xde3: 0x0ed5,
+	0xde4: 0x2989, 0xde5: 0x0008, 0xde6: 0x0008, 0xde7: 0xe07d, 0xde8: 0x0008, 0xde9: 0xe01d,
+	0xdea: 0x0008, 0xdeb: 0xe03d, 0xdec: 0x0008, 0xded: 0x0fe1, 0xdee: 0x1281, 0xdef: 0x0fc9,
+	0xdf0: 0x1141, 0xdf1: 0x0008, 0xdf2: 0xe00d, 0xdf3: 0x0008, 0xdf4: 0x0008, 0xdf5: 0xe01d,
+	0xdf6: 0x0008, 0xdf7: 0x0008, 0xdf8: 0x0008, 0xdf9: 0x0008, 0xdfa: 0x0008, 0xdfb: 0x0008,
+	0xdfc: 0x0259, 0xdfd: 0x1089, 0xdfe: 0x29a1, 0xdff: 0x29b9,
+	// Block 0x38, offset 0xe00
+	0xe00: 0xe00d, 0xe01: 0x0008, 0xe02: 0xe00d, 0xe03: 0x0008, 0xe04: 0xe00d, 0xe05: 0x0008,
+	0xe06: 0xe00d, 0xe07: 0x0008, 0xe08: 0xe00d, 0xe09: 0x0008, 0xe0a: 0xe00d, 0xe0b: 0x0008,
+	0xe0c: 0xe00d, 0xe0d: 0x0008, 0xe0e: 0xe00d, 0xe0f: 0x0008, 0xe10: 0xe00d, 0xe11: 0x0008,
+	0xe12: 0xe00d, 0xe13: 0x0008, 0xe14: 0xe00d, 0xe15: 0x0008, 0xe16: 0xe00d, 0xe17: 0x0008,
+	0xe18: 0xe00d, 0xe19: 0x0008, 0xe1a: 0xe00d, 0xe1b: 0x0008, 0xe1c: 0xe00d, 0xe1d: 0x0008,
+	0xe1e: 0xe00d, 0xe1f: 0x0008, 0xe20: 0xe00d, 0xe21: 0x0008, 0xe22: 0xe00d, 0xe23: 0x0008,
+	0xe24: 0x0008, 0xe25: 0x0018, 0xe26: 0x0018, 0xe27: 0x0018, 0xe28: 0x0018, 0xe29: 0x0018,
+	0xe2a: 0x0018, 0xe2b: 0xe03d, 0xe2c: 0x0008, 0xe2d: 0xe01d, 0xe2e: 0x0008, 0xe2f: 0x3308,
+	0xe30: 0x3308, 0xe31: 0x3308, 0xe32: 0xe00d, 0xe33: 0x0008, 0xe34: 0x0040, 0xe35: 0x0040,
+	0xe36: 0x0040, 0xe37: 0x0040, 0xe38: 0x0040, 0xe39: 0x0018, 0xe3a: 0x0018, 0xe3b: 0x0018,
+	0xe3c: 0x0018, 0xe3d: 0x0018, 0xe3e: 0x0018, 0xe3f: 0x0018,
+	// Block 0x39, offset 0xe40
+	0xe40: 0x2715, 0xe41: 0x2735, 0xe42: 0x2755, 0xe43: 0x2775, 0xe44: 0x2795, 0xe45: 0x27b5,
+	0xe46: 0x27d5, 0xe47: 0x27f5, 0xe48: 0x2815, 0xe49: 0x2835, 0xe4a: 0x2855, 0xe4b: 0x2875,
+	0xe4c: 0x2895, 0xe4d: 0x28b5, 0xe4e: 0x28d5, 0xe4f: 0x28f5, 0xe50: 0x2915, 0xe51: 0x2935,
+	0xe52: 0x2955, 0xe53: 0x2975, 0xe54: 0x2995, 0xe55: 0x29b5, 0xe56: 0x0040, 0xe57: 0x0040,
+	0xe58: 0x0040, 0xe59: 0x0040, 0xe5a: 0x0040, 0xe5b: 0x0040, 0xe5c: 0x0040, 0xe5d: 0x0040,
+	0xe5e: 0x0040, 0xe5f: 0x0040, 0xe60: 0x0040, 0xe61: 0x0040, 0xe62: 0x0040, 0xe63: 0x0040,
+	0xe64: 0x0040, 0xe65: 0x0040, 0xe66: 0x0040, 0xe67: 0x0040, 0xe68: 0x0040, 0xe69: 0x0040,
+	0xe6a: 0x0040, 0xe6b: 0x0040, 0xe6c: 0x0040, 0xe6d: 0x0040, 0xe6e: 0x0040, 0xe6f: 0x0040,
+	0xe70: 0x0040, 0xe71: 0x0040, 0xe72: 0x0040, 0xe73: 0x0040, 0xe74: 0x0040, 0xe75: 0x0040,
+	0xe76: 0x0040, 0xe77: 0x0040, 0xe78: 0x0040, 0xe79: 0x0040, 0xe7a: 0x0040, 0xe7b: 0x0040,
+	0xe7c: 0x0040, 0xe7d: 0x0040, 0xe7e: 0x0040, 0xe7f: 0x0040,
+	// Block 0x3a, offset 0xe80
+	0xe80: 0x000a, 0xe81: 0x0018, 0xe82: 0x29d1, 0xe83: 0x0018, 0xe84: 0x0018, 0xe85: 0x0008,
+	0xe86: 0x0008, 0xe87: 0x0008, 0xe88: 0x0018, 0xe89: 0x0018, 0xe8a: 0x0018, 0xe8b: 0x0018,
+	0xe8c: 0x0018, 0xe8d: 0x0018, 0xe8e: 0x0018, 0xe8f: 0x0018, 0xe90: 0x0018, 0xe91: 0x0018,
+	0xe92: 0x0018, 0xe93: 0x0018, 0xe94: 0x0018, 0xe95: 0x0018, 0xe96: 0x0018, 0xe97: 0x0018,
+	0xe98: 0x0018, 0xe99: 0x0018, 0xe9a: 0x0018, 0xe9b: 0x0018, 0xe9c: 0x0018, 0xe9d: 0x0018,
+	0xe9e: 0x0018, 0xe9f: 0x0018, 0xea0: 0x0018, 0xea1: 0x0018, 0xea2: 0x0018, 0xea3: 0x0018,
+	0xea4: 0x0018, 0xea5: 0x0018, 0xea6: 0x0018, 0xea7: 0x0018, 0xea8: 0x0018, 0xea9: 0x0018,
+	0xeaa: 0x3308, 0xeab: 0x3308, 0xeac: 0x3308, 0xead: 0x3308, 0xeae: 0x3018, 0xeaf: 0x3018,
+	0xeb0: 0x0018, 0xeb1: 0x0018, 0xeb2: 0x0018, 0xeb3: 0x0018, 0xeb4: 0x0018, 0xeb5: 0x0018,
+	0xeb6: 0xe125, 0xeb7: 0x0018, 0xeb8: 0x29d5, 0xeb9: 0x29f5, 0xeba: 0x2a15, 0xebb: 0x0018,
+	0xebc: 0x0008, 0xebd: 0x0018, 0xebe: 0x0018, 0xebf: 0x0018,
+	// Block 0x3b, offset 0xec0
+	0xec0: 0x2b55, 0xec1: 0x2b75, 0xec2: 0x2b95, 0xec3: 0x2bb5, 0xec4: 0x2bd5, 0xec5: 0x2bf5,
+	0xec6: 0x2bf5, 0xec7: 0x2bf5, 0xec8: 0x2c15, 0xec9: 0x2c15, 0xeca: 0x2c15, 0xecb: 0x2c15,
+	0xecc: 0x2c35, 0xecd: 0x2c35, 0xece: 0x2c35, 0xecf: 0x2c55, 0xed0: 0x2c75, 0xed1: 0x2c75,
+	0xed2: 0x2a95, 0xed3: 0x2a95, 0xed4: 0x2c75, 0xed5: 0x2c75, 0xed6: 0x2c95, 0xed7: 0x2c95,
+	0xed8: 0x2c75, 0xed9: 0x2c75, 0xeda: 0x2a95, 0xedb: 0x2a95, 0xedc: 0x2c75, 0xedd: 0x2c75,
+	0xede: 0x2c55, 0xedf: 0x2c55, 0xee0: 0x2cb5, 0xee1: 0x2cb5, 0xee2: 0x2cd5, 0xee3: 0x2cd5,
+	0xee4: 0x0040, 0xee5: 0x2cf5, 0xee6: 0x2d15, 0xee7: 0x2d35, 0xee8: 0x2d35, 0xee9: 0x2d55,
+	0xeea: 0x2d75, 0xeeb: 0x2d95, 0xeec: 0x2db5, 0xeed: 0x2dd5, 0xeee: 0x2df5, 0xeef: 0x2e15,
+	0xef0: 0x2e35, 0xef1: 0x2e55, 0xef2: 0x2e55, 0xef3: 0x2e75, 0xef4: 0x2e95, 0xef5: 0x2e95,
+	0xef6: 0x2eb5, 0xef7: 0x2ed5, 0xef8: 0x2e75, 0xef9: 0x2ef5, 0xefa: 0x2f15, 0xefb: 0x2ef5,
+	0xefc: 0x2e75, 0xefd: 0x2f35, 0xefe: 0x2f55, 0xeff: 0x2f75,
+	// Block 0x3c, offset 0xf00
+	0xf00: 0x2f95, 0xf01: 0x2fb5, 0xf02: 0x2d15, 0xf03: 0x2cf5, 0xf04: 0x2fd5, 0xf05: 0x2ff5,
+	0xf06: 0x3015, 0xf07: 0x3035, 0xf08: 0x3055, 0xf09: 0x3075, 0xf0a: 0x3095, 0xf0b: 0x30b5,
+	0xf0c: 0x30d5, 0xf0d: 0x30f5, 0xf0e: 0x3115, 0xf0f: 0x0040, 0xf10: 0x0018, 0xf11: 0x0018,
+	0xf12: 0x3135, 0xf13: 0x3155, 0xf14: 0x3175, 0xf15: 0x3195, 0xf16: 0x31b5, 0xf17: 0x31d5,
+	0xf18: 0x31f5, 0xf19: 0x3215, 0xf1a: 0x3235, 0xf1b: 0x3255, 0xf1c: 0x3175, 0xf1d: 0x3275,
+	0xf1e: 0x3295, 0xf1f: 0x32b5, 0xf20: 0x0008, 0xf21: 0x0008, 0xf22: 0x0008, 0xf23: 0x0008,
+	0xf24: 0x0008, 0xf25: 0x0008, 0xf26: 0x0008, 0xf27: 0x0008, 0xf28: 0x0008, 0xf29: 0x0008,
+	0xf2a: 0x0008, 0xf2b: 0x0008, 0xf2c: 0x0008, 0xf2d: 0x0008, 0xf2e: 0x0008, 0xf2f: 0x0008,
+	0xf30: 0x0008, 0xf31: 0x0008, 0xf32: 0x0008, 0xf33: 0x0008, 0xf34: 0x0008, 0xf35: 0x0008,
+	0xf36: 0x0008, 0xf37: 0x0008, 0xf38: 0x0008, 0xf39: 0x0008, 0xf3a: 0x0008, 0xf3b: 0x0040,
+	0xf3c: 0x0040, 0xf3d: 0x0040, 0xf3e: 0x0040, 0xf3f: 0x0040,
+	// Block 0x3d, offset 0xf40
+	0xf40: 0x36a2, 0xf41: 0x36d2, 0xf42: 0x3702, 0xf43: 0x3732, 0xf44: 0x32d5, 0xf45: 0x32f5,
+	0xf46: 0x3315, 0xf47: 0x3335, 0xf48: 0x0018, 0xf49: 0x0018, 0xf4a: 0x0018, 0xf4b: 0x0018,
+	0xf4c: 0x0018, 0xf4d: 0x0018, 0xf4e: 0x0018, 0xf4f: 0x0018, 0xf50: 0x3355, 0xf51: 0x3761,
+	0xf52: 0x3779, 0xf53: 0x3791, 0xf54: 0x37a9, 0xf55: 0x37c1, 0xf56: 0x37d9, 0xf57: 0x37f1,
+	0xf58: 0x3809, 0xf59: 0x3821, 0xf5a: 0x3839, 0xf5b: 0x3851, 0xf5c: 0x3869, 0xf5d: 0x3881,
+	0xf5e: 0x3899, 0xf5f: 0x38b1, 0xf60: 0x3375, 0xf61: 0x3395, 0xf62: 0x33b5, 0xf63: 0x33d5,
+	0xf64: 0x33f5, 0xf65: 0x33f5, 0xf66: 0x3415, 0xf67: 0x3435, 0xf68: 0x3455, 0xf69: 0x3475,
+	0xf6a: 0x3495, 0xf6b: 0x34b5, 0xf6c: 0x34d5, 0xf6d: 0x34f5, 0xf6e: 0x3515, 0xf6f: 0x3535,
+	0xf70: 0x3555, 0xf71: 0x3575, 0xf72: 0x3595, 0xf73: 0x35b5, 0xf74: 0x35d5, 0xf75: 0x35f5,
+	0xf76: 0x3615, 0xf77: 0x3635, 0xf78: 0x3655, 0xf79: 0x3675, 0xf7a: 0x3695, 0xf7b: 0x36b5,
+	0xf7c: 0x38c9, 0xf7d: 0x3901, 0xf7e: 0x36d5, 0xf7f: 0x0018,
+	// Block 0x3e, offset 0xf80
+	0xf80: 0x36f5, 0xf81: 0x3715, 0xf82: 0x3735, 0xf83: 0x3755, 0xf84: 0x3775, 0xf85: 0x3795,
+	0xf86: 0x37b5, 0xf87: 0x37d5, 0xf88: 0x37f5, 0xf89: 0x3815, 0xf8a: 0x3835, 0xf8b: 0x3855,
+	0xf8c: 0x3875, 0xf8d: 0x3895, 0xf8e: 0x38b5, 0xf8f: 0x38d5, 0xf90: 0x38f5, 0xf91: 0x3915,
+	0xf92: 0x3935, 0xf93: 0x3955, 0xf94: 0x3975, 0xf95: 0x3995, 0xf96: 0x39b5, 0xf97: 0x39d5,
+	0xf98: 0x39f5, 0xf99: 0x3a15, 0xf9a: 0x3a35, 0xf9b: 0x3a55, 0xf9c: 0x3a75, 0xf9d: 0x3a95,
+	0xf9e: 0x3ab5, 0xf9f: 0x3ad5, 0xfa0: 0x3af5, 0xfa1: 0x3b15, 0xfa2: 0x3b35, 0xfa3: 0x3b55,
+	0xfa4: 0x3b75, 0xfa5: 0x3b95, 0xfa6: 0x1295, 0xfa7: 0x3bb5, 0xfa8: 0x3bd5, 0xfa9: 0x3bf5,
+	0xfaa: 0x3c15, 0xfab: 0x3c35, 0xfac: 0x3c55, 0xfad: 0x3c75, 0xfae: 0x23b5, 0xfaf: 0x3c95,
+	0xfb0: 0x3cb5, 0xfb1: 0x3939, 0xfb2: 0x3951, 0xfb3: 0x3969, 0xfb4: 0x3981, 0xfb5: 0x3999,
+	0xfb6: 0x39b1, 0xfb7: 0x39c9, 0xfb8: 0x39e1, 0xfb9: 0x39f9, 0xfba: 0x3a11, 0xfbb: 0x3a29,
+	0xfbc: 0x3a41, 0xfbd: 0x3a59, 0xfbe: 0x3a71, 0xfbf: 0x3a89,
+	// Block 0x3f, offset 0xfc0
+	0xfc0: 0x3aa1, 0xfc1: 0x3ac9, 0xfc2: 0x3af1, 0xfc3: 0x3b19, 0xfc4: 0x3b41, 0xfc5: 0x3b69,
+	0xfc6: 0x3b91, 0xfc7: 0x3bb9, 0xfc8: 0x3be1, 0xfc9: 0x3c09, 0xfca: 0x3c39, 0xfcb: 0x3c69,
+	0xfcc: 0x3c99, 0xfcd: 0x3cd5, 0xfce: 0x3cb1, 0xfcf: 0x3cf5, 0xfd0: 0x3d15, 0xfd1: 0x3d2d,
+	0xfd2: 0x3d45, 0xfd3: 0x3d5d, 0xfd4: 0x3d75, 0xfd5: 0x3d75, 0xfd6: 0x3d5d, 0xfd7: 0x3d8d,
+	0xfd8: 0x07d5, 0xfd9: 0x3da5, 0xfda: 0x3dbd, 0xfdb: 0x3dd5, 0xfdc: 0x3ded, 0xfdd: 0x3e05,
+	0xfde: 0x3e1d, 0xfdf: 0x3e35, 0xfe0: 0x3e4d, 0xfe1: 0x3e65, 0xfe2: 0x3e7d, 0xfe3: 0x3e95,
+	0xfe4: 0x3ead, 0xfe5: 0x3ead, 0xfe6: 0x3ec5, 0xfe7: 0x3ec5, 0xfe8: 0x3edd, 0xfe9: 0x3edd,
+	0xfea: 0x3ef5, 0xfeb: 0x3f0d, 0xfec: 0x3f25, 0xfed: 0x3f3d, 0xfee: 0x3f55, 0xfef: 0x3f55,
+	0xff0: 0x3f6d, 0xff1: 0x3f6d, 0xff2: 0x3f6d, 0xff3: 0x3f85, 0xff4: 0x3f9d, 0xff5: 0x3fb5,
+	0xff6: 0x3fcd, 0xff7: 0x3fb5, 0xff8: 0x3fe5, 0xff9: 0x3ffd, 0xffa: 0x3f85, 0xffb: 0x4015,
+	0xffc: 0x402d, 0xffd: 0x402d, 0xffe: 0x402d, 0xfff: 0x0040,
+	// Block 0x40, offset 0x1000
+	0x1000: 0x3cc9, 0x1001: 0x3d31, 0x1002: 0x3d99, 0x1003: 0x3e01, 0x1004: 0x3e51, 0x1005: 0x3eb9,
+	0x1006: 0x3f09, 0x1007: 0x3f59, 0x1008: 0x3fd9, 0x1009: 0x4041, 0x100a: 0x4091, 0x100b: 0x40e1,
+	0x100c: 0x4131, 0x100d: 0x4199, 0x100e: 0x4201, 0x100f: 0x4251, 0x1010: 0x42a1, 0x1011: 0x42d9,
+	0x1012: 0x4329, 0x1013: 0x4391, 0x1014: 0x43f9, 0x1015: 0x4431, 0x1016: 0x44b1, 0x1017: 0x4549,
+	0x1018: 0x45c9, 0x1019: 0x4619, 0x101a: 0x4699, 0x101b: 0x4719, 0x101c: 0x4781, 0x101d: 0x47d1,
+	0x101e: 0x4821, 0x101f: 0x4871, 0x1020: 0x48d9, 0x1021: 0x4959, 0x1022: 0x49c1, 0x1023: 0x4a11,
+	0x1024: 0x4a61, 0x1025: 0x4ab1, 0x1026: 0x4ae9, 0x1027: 0x4b21, 0x1028: 0x4b59, 0x1029: 0x4b91,
+	0x102a: 0x4be1, 0x102b: 0x4c31, 0x102c: 0x4cb1, 0x102d: 0x4d01, 0x102e: 0x4d69, 0x102f: 0x4de9,
+	0x1030: 0x4e39, 0x1031: 0x4e71, 0x1032: 0x4ea9, 0x1033: 0x4f29, 0x1034: 0x4f91, 0x1035: 0x5011,
+	0x1036: 0x5061, 0x1037: 0x50e1, 0x1038: 0x5119, 0x1039: 0x5169, 0x103a: 0x51b9, 0x103b: 0x5209,
+	0x103c: 0x5259, 0x103d: 0x52a9, 0x103e: 0x5311, 0x103f: 0x5361,
+	// Block 0x41, offset 0x1040
+	0x1040: 0x5399, 0x1041: 0x53e9, 0x1042: 0x5439, 0x1043: 0x5489, 0x1044: 0x54f1, 0x1045: 0x5541,
+	0x1046: 0x5591, 0x1047: 0x55e1, 0x1048: 0x5661, 0x1049: 0x56c9, 0x104a: 0x5701, 0x104b: 0x5781,
+	0x104c: 0x57b9, 0x104d: 0x5821, 0x104e: 0x5889, 0x104f: 0x58d9, 0x1050: 0x5929, 0x1051: 0x5979,
+	0x1052: 0x59e1, 0x1053: 0x5a19, 0x1054: 0x5a69, 0x1055: 0x5ad1, 0x1056: 0x5b09, 0x1057: 0x5b89,
+	0x1058: 0x5bd9, 0x1059: 0x5c01, 0x105a: 0x5c29, 0x105b: 0x5c51, 0x105c: 0x5c79, 0x105d: 0x5ca1,
+	0x105e: 0x5cc9, 0x105f: 0x5cf1, 0x1060: 0x5d19, 0x1061: 0x5d41, 0x1062: 0x5d69, 0x1063: 0x5d99,
+	0x1064: 0x5dc9, 0x1065: 0x5df9, 0x1066: 0x5e29, 0x1067: 0x5e59, 0x1068: 0x5e89, 0x1069: 0x5eb9,
+	0x106a: 0x5ee9, 0x106b: 0x5f19, 0x106c: 0x5f49, 0x106d: 0x5f79, 0x106e: 0x5fa9, 0x106f: 0x5fd9,
+	0x1070: 0x6009, 0x1071: 0x4045, 0x1072: 0x6039, 0x1073: 0x6051, 0x1074: 0x4065, 0x1075: 0x6069,
+	0x1076: 0x6081, 0x1077: 0x6099, 0x1078: 0x4085, 0x1079: 0x4085, 0x107a: 0x60b1, 0x107b: 0x60c9,
+	0x107c: 0x6101, 0x107d: 0x6139, 0x107e: 0x6171, 0x107f: 0x61a9,
+	// Block 0x42, offset 0x1080
+	0x1080: 0x6211, 0x1081: 0x6229, 0x1082: 0x40a5, 0x1083: 0x6241, 0x1084: 0x6259, 0x1085: 0x6271,
+	0x1086: 0x6289, 0x1087: 0x62a1, 0x1088: 0x40c5, 0x1089: 0x62b9, 0x108a: 0x62e1, 0x108b: 0x62f9,
+	0x108c: 0x40e5, 0x108d: 0x40e5, 0x108e: 0x6311, 0x108f: 0x6329, 0x1090: 0x6341, 0x1091: 0x4105,
+	0x1092: 0x4125, 0x1093: 0x4145, 0x1094: 0x4165, 0x1095: 0x4185, 0x1096: 0x6359, 0x1097: 0x6371,
+	0x1098: 0x6389, 0x1099: 0x63a1, 0x109a: 0x63b9, 0x109b: 0x41a5, 0x109c: 0x63d1, 0x109d: 0x63e9,
+	0x109e: 0x6401, 0x109f: 0x41c5, 0x10a0: 0x41e5, 0x10a1: 0x6419, 0x10a2: 0x4205, 0x10a3: 0x4225,
+	0x10a4: 0x4245, 0x10a5: 0x6431, 0x10a6: 0x4265, 0x10a7: 0x6449, 0x10a8: 0x6479, 0x10a9: 0x6211,
+	0x10aa: 0x4285, 0x10ab: 0x42a5, 0x10ac: 0x42c5, 0x10ad: 0x42e5, 0x10ae: 0x64b1, 0x10af: 0x64f1,
+	0x10b0: 0x6539, 0x10b1: 0x6551, 0x10b2: 0x4305, 0x10b3: 0x6569, 0x10b4: 0x6581, 0x10b5: 0x6599,
+	0x10b6: 0x4325, 0x10b7: 0x65b1, 0x10b8: 0x65c9, 0x10b9: 0x65b1, 0x10ba: 0x65e1, 0x10bb: 0x65f9,
+	0x10bc: 0x4345, 0x10bd: 0x6611, 0x10be: 0x6629, 0x10bf: 0x6611,
+	// Block 0x43, offset 0x10c0
+	0x10c0: 0x4365, 0x10c1: 0x4385, 0x10c2: 0x0040, 0x10c3: 0x6641, 0x10c4: 0x6659, 0x10c5: 0x6671,
+	0x10c6: 0x6689, 0x10c7: 0x0040, 0x10c8: 0x66c1, 0x10c9: 0x66d9, 0x10ca: 0x66f1, 0x10cb: 0x6709,
+	0x10cc: 0x6721, 0x10cd: 0x6739, 0x10ce: 0x6401, 0x10cf: 0x6751, 0x10d0: 0x6769, 0x10d1: 0x6781,
+	0x10d2: 0x43a5, 0x10d3: 0x6799, 0x10d4: 0x6289, 0x10d5: 0x43c5, 0x10d6: 0x43e5, 0x10d7: 0x67b1,
+	0x10d8: 0x0040, 0x10d9: 0x4405, 0x10da: 0x67c9, 0x10db: 0x67e1, 0x10dc: 0x67f9, 0x10dd: 0x6811,
+	0x10de: 0x6829, 0x10df: 0x6859, 0x10e0: 0x6889, 0x10e1: 0x68b1, 0x10e2: 0x68d9, 0x10e3: 0x6901,
+	0x10e4: 0x6929, 0x10e5: 0x6951, 0x10e6: 0x6979, 0x10e7: 0x69a1, 0x10e8: 0x69c9, 0x10e9: 0x69f1,
+	0x10ea: 0x6a21, 0x10eb: 0x6a51, 0x10ec: 0x6a81, 0x10ed: 0x6ab1, 0x10ee: 0x6ae1, 0x10ef: 0x6b11,
+	0x10f0: 0x6b41, 0x10f1: 0x6b71, 0x10f2: 0x6ba1, 0x10f3: 0x6bd1, 0x10f4: 0x6c01, 0x10f5: 0x6c31,
+	0x10f6: 0x6c61, 0x10f7: 0x6c91, 0x10f8: 0x6cc1, 0x10f9: 0x6cf1, 0x10fa: 0x6d21, 0x10fb: 0x6d51,
+	0x10fc: 0x6d81, 0x10fd: 0x6db1, 0x10fe: 0x6de1, 0x10ff: 0x4425,
+	// Block 0x44, offset 0x1100
+	0x1100: 0xe00d, 0x1101: 0x0008, 0x1102: 0xe00d, 0x1103: 0x0008, 0x1104: 0xe00d, 0x1105: 0x0008,
+	0x1106: 0xe00d, 0x1107: 0x0008, 0x1108: 0xe00d, 0x1109: 0x0008, 0x110a: 0xe00d, 0x110b: 0x0008,
+	0x110c: 0xe00d, 0x110d: 0x0008, 0x110e: 0xe00d, 0x110f: 0x0008, 0x1110: 0xe00d, 0x1111: 0x0008,
+	0x1112: 0xe00d, 0x1113: 0x0008, 0x1114: 0xe00d, 0x1115: 0x0008, 0x1116: 0xe00d, 0x1117: 0x0008,
+	0x1118: 0xe00d, 0x1119: 0x0008, 0x111a: 0xe00d, 0x111b: 0x0008, 0x111c: 0xe00d, 0x111d: 0x0008,
+	0x111e: 0xe00d, 0x111f: 0x0008, 0x1120: 0xe00d, 0x1121: 0x0008, 0x1122: 0xe00d, 0x1123: 0x0008,
+	0x1124: 0xe00d, 0x1125: 0x0008, 0x1126: 0xe00d, 0x1127: 0x0008, 0x1128: 0xe00d, 0x1129: 0x0008,
+	0x112a: 0xe00d, 0x112b: 0x0008, 0x112c: 0xe00d, 0x112d: 0x0008, 0x112e: 0x0008, 0x112f: 0x3308,
+	0x1130: 0x3318, 0x1131: 0x3318, 0x1132: 0x3318, 0x1133: 0x0018, 0x1134: 0x3308, 0x1135: 0x3308,
+	0x1136: 0x3308, 0x1137: 0x3308, 0x1138: 0x3308, 0x1139: 0x3308, 0x113a: 0x3308, 0x113b: 0x3308,
+	0x113c: 0x3308, 0x113d: 0x3308, 0x113e: 0x0018, 0x113f: 0x0008,
+	// Block 0x45, offset 0x1140
+	0x1140: 0xe00d, 0x1141: 0x0008, 0x1142: 0xe00d, 0x1143: 0x0008, 0x1144: 0xe00d, 0x1145: 0x0008,
+	0x1146: 0xe00d, 0x1147: 0x0008, 0x1148: 0xe00d, 0x1149: 0x0008, 0x114a: 0xe00d, 0x114b: 0x0008,
+	0x114c: 0xe00d, 0x114d: 0x0008, 0x114e: 0xe00d, 0x114f: 0x0008, 0x1150: 0xe00d, 0x1151: 0x0008,
+	0x1152: 0xe00d, 0x1153: 0x0008, 0x1154: 0xe00d, 0x1155: 0x0008, 0x1156: 0xe00d, 0x1157: 0x0008,
+	0x1158: 0xe00d, 0x1159: 0x0008, 0x115a: 0xe00d, 0x115b: 0x0008, 0x115c: 0x0ea1, 0x115d: 0x6e11,
+	0x115e: 0x3308, 0x115f: 0x3308, 0x1160: 0x0008, 0x1161: 0x0008, 0x1162: 0x0008, 0x1163: 0x0008,
+	0x1164: 0x0008, 0x1165: 0x0008, 0x1166: 0x0008, 0x1167: 0x0008, 0x1168: 0x0008, 0x1169: 0x0008,
+	0x116a: 0x0008, 0x116b: 0x0008, 0x116c: 0x0008, 0x116d: 0x0008, 0x116e: 0x0008, 0x116f: 0x0008,
+	0x1170: 0x0008, 0x1171: 0x0008, 0x1172: 0x0008, 0x1173: 0x0008, 0x1174: 0x0008, 0x1175: 0x0008,
+	0x1176: 0x0008, 0x1177: 0x0008, 0x1178: 0x0008, 0x1179: 0x0008, 0x117a: 0x0008, 0x117b: 0x0008,
+	0x117c: 0x0008, 0x117d: 0x0008, 0x117e: 0x0008, 0x117f: 0x0008,
+	// Block 0x46, offset 0x1180
+	0x1180: 0x0018, 0x1181: 0x0018, 0x1182: 0x0018, 0x1183: 0x0018, 0x1184: 0x0018, 0x1185: 0x0018,
+	0x1186: 0x0018, 0x1187: 0x0018, 0x1188: 0x0018, 0x1189: 0x0018, 0x118a: 0x0018, 0x118b: 0x0018,
+	0x118c: 0x0018, 0x118d: 0x0018, 0x118e: 0x0018, 0x118f: 0x0018, 0x1190: 0x0018, 0x1191: 0x0018,
+	0x1192: 0x0018, 0x1193: 0x0018, 0x1194: 0x0018, 0x1195: 0x0018, 0x1196: 0x0018, 0x1197: 0x0008,
+	0x1198: 0x0008, 0x1199: 0x0008, 0x119a: 0x0008, 0x119b: 0x0008, 0x119c: 0x0008, 0x119d: 0x0008,
+	0x119e: 0x0008, 0x119f: 0x0008, 0x11a0: 0x0018, 0x11a1: 0x0018, 0x11a2: 0xe00d, 0x11a3: 0x0008,
+	0x11a4: 0xe00d, 0x11a5: 0x0008, 0x11a6: 0xe00d, 0x11a7: 0x0008, 0x11a8: 0xe00d, 0x11a9: 0x0008,
+	0x11aa: 0xe00d, 0x11ab: 0x0008, 0x11ac: 0xe00d, 0x11ad: 0x0008, 0x11ae: 0xe00d, 0x11af: 0x0008,
+	0x11b0: 0x0008, 0x11b1: 0x0008, 0x11b2: 0xe00d, 0x11b3: 0x0008, 0x11b4: 0xe00d, 0x11b5: 0x0008,
+	0x11b6: 0xe00d, 0x11b7: 0x0008, 0x11b8: 0xe00d, 0x11b9: 0x0008, 0x11ba: 0xe00d, 0x11bb: 0x0008,
+	0x11bc: 0xe00d, 0x11bd: 0x0008, 0x11be: 0xe00d, 0x11bf: 0x0008,
+	// Block 0x47, offset 0x11c0
+	0x11c0: 0xe00d, 0x11c1: 0x0008, 0x11c2: 0xe00d, 0x11c3: 0x0008, 0x11c4: 0xe00d, 0x11c5: 0x0008,
+	0x11c6: 0xe00d, 0x11c7: 0x0008, 0x11c8: 0xe00d, 0x11c9: 0x0008, 0x11ca: 0xe00d, 0x11cb: 0x0008,
+	0x11cc: 0xe00d, 0x11cd: 0x0008, 0x11ce: 0xe00d, 0x11cf: 0x0008, 0x11d0: 0xe00d, 0x11d1: 0x0008,
+	0x11d2: 0xe00d, 0x11d3: 0x0008, 0x11d4: 0xe00d, 0x11d5: 0x0008, 0x11d6: 0xe00d, 0x11d7: 0x0008,
+	0x11d8: 0xe00d, 0x11d9: 0x0008, 0x11da: 0xe00d, 0x11db: 0x0008, 0x11dc: 0xe00d, 0x11dd: 0x0008,
+	0x11de: 0xe00d, 0x11df: 0x0008, 0x11e0: 0xe00d, 0x11e1: 0x0008, 0x11e2: 0xe00d, 0x11e3: 0x0008,
+	0x11e4: 0xe00d, 0x11e5: 0x0008, 0x11e6: 0xe00d, 0x11e7: 0x0008, 0x11e8: 0xe00d, 0x11e9: 0x0008,
+	0x11ea: 0xe00d, 0x11eb: 0x0008, 0x11ec: 0xe00d, 0x11ed: 0x0008, 0x11ee: 0xe00d, 0x11ef: 0x0008,
+	0x11f0: 0xe0fd, 0x11f1: 0x0008, 0x11f2: 0x0008, 0x11f3: 0x0008, 0x11f4: 0x0008, 0x11f5: 0x0008,
+	0x11f6: 0x0008, 0x11f7: 0x0008, 0x11f8: 0x0008, 0x11f9: 0xe01d, 0x11fa: 0x0008, 0x11fb: 0xe03d,
+	0x11fc: 0x0008, 0x11fd: 0x4445, 0x11fe: 0xe00d, 0x11ff: 0x0008,
+	// Block 0x48, offset 0x1200
+	0x1200: 0xe00d, 0x1201: 0x0008, 0x1202: 0xe00d, 0x1203: 0x0008, 0x1204: 0xe00d, 0x1205: 0x0008,
+	0x1206: 0xe00d, 0x1207: 0x0008, 0x1208: 0x0008, 0x1209: 0x0018, 0x120a: 0x0018, 0x120b: 0xe03d,
+	0x120c: 0x0008, 0x120d: 0x11d9, 0x120e: 0x0008, 0x120f: 0x0008, 0x1210: 0xe00d, 0x1211: 0x0008,
+	0x1212: 0xe00d, 0x1213: 0x0008, 0x1214: 0x0008, 0x1215: 0x0008, 0x1216: 0xe00d, 0x1217: 0x0008,
+	0x1218: 0xe00d, 0x1219: 0x0008, 0x121a: 0xe00d, 0x121b: 0x0008, 0x121c: 0xe00d, 0x121d: 0x0008,
+	0x121e: 0xe00d, 0x121f: 0x0008, 0x1220: 0xe00d, 0x1221: 0x0008, 0x1222: 0xe00d, 0x1223: 0x0008,
+	0x1224: 0xe00d, 0x1225: 0x0008, 0x1226: 0xe00d, 0x1227: 0x0008, 0x1228: 0xe00d, 0x1229: 0x0008,
+	0x122a: 0x6e29, 0x122b: 0x1029, 0x122c: 0x11c1, 0x122d: 0x6e41, 0x122e: 0x1221, 0x122f: 0x0008,
+	0x1230: 0x6e59, 0x1231: 0x6e71, 0x1232: 0x1239, 0x1233: 0x4465, 0x1234: 0xe00d, 0x1235: 0x0008,
+	0x1236: 0xe00d, 0x1237: 0x0008, 0x1238: 0xe00d, 0x1239: 0x0008, 0x123a: 0xe00d, 0x123b: 0x0008,
+	0x123c: 0xe00d, 0x123d: 0x0008, 0x123e: 0xe00d, 0x123f: 0x0008,
+	// Block 0x49, offset 0x1240
+	0x1240: 0x650d, 0x1241: 0x652d, 0x1242: 0x654d, 0x1243: 0x656d, 0x1244: 0x658d, 0x1245: 0x65ad,
+	0x1246: 0x65cd, 0x1247: 0x65ed, 0x1248: 0x660d, 0x1249: 0x662d, 0x124a: 0x664d, 0x124b: 0x666d,
+	0x124c: 0x668d, 0x124d: 0x66ad, 0x124e: 0x0008, 0x124f: 0x0008, 0x1250: 0x66cd, 0x1251: 0x0008,
+	0x1252: 0x66ed, 0x1253: 0x0008, 0x1254: 0x0008, 0x1255: 0x670d, 0x1256: 0x672d, 0x1257: 0x674d,
+	0x1258: 0x676d, 0x1259: 0x678d, 0x125a: 0x67ad, 0x125b: 0x67cd, 0x125c: 0x67ed, 0x125d: 0x680d,
+	0x125e: 0x682d, 0x125f: 0x0008, 0x1260: 0x684d, 0x1261: 0x0008, 0x1262: 0x686d, 0x1263: 0x0008,
+	0x1264: 0x0008, 0x1265: 0x688d, 0x1266: 0x68ad, 0x1267: 0x0008, 0x1268: 0x0008, 0x1269: 0x0008,
+	0x126a: 0x68cd, 0x126b: 0x68ed, 0x126c: 0x690d, 0x126d: 0x692d, 0x126e: 0x694d, 0x126f: 0x696d,
+	0x1270: 0x698d, 0x1271: 0x69ad, 0x1272: 0x69cd, 0x1273: 0x69ed, 0x1274: 0x6a0d, 0x1275: 0x6a2d,
+	0x1276: 0x6a4d, 0x1277: 0x6a6d, 0x1278: 0x6a8d, 0x1279: 0x6aad, 0x127a: 0x6acd, 0x127b: 0x6aed,
+	0x127c: 0x6b0d, 0x127d: 0x6b2d, 0x127e: 0x6b4d, 0x127f: 0x6b6d,
+	// Block 0x4a, offset 0x1280
+	0x1280: 0x7acd, 0x1281: 0x7aed, 0x1282: 0x7b0d, 0x1283: 0x7b2d, 0x1284: 0x7b4d, 0x1285: 0x7b6d,
+	0x1286: 0x7b8d, 0x1287: 0x7bad, 0x1288: 0x7bcd, 0x1289: 0x7bed, 0x128a: 0x7c0d, 0x128b: 0x7c2d,
+	0x128c: 0x7c4d, 0x128d: 0x7c6d, 0x128e: 0x7c8d, 0x128f: 0x6ec9, 0x1290: 0x6ef1, 0x1291: 0x6f19,
+	0x1292: 0x7cad, 0x1293: 0x7ccd, 0x1294: 0x7ced, 0x1295: 0x6f41, 0x1296: 0x6f69, 0x1297: 0x6f91,
+	0x1298: 0x7d0d, 0x1299: 0x7d2d, 0x129a: 0x0040, 0x129b: 0x0040, 0x129c: 0x0040, 0x129d: 0x0040,
+	0x129e: 0x0040, 0x129f: 0x0040, 0x12a0: 0x0040, 0x12a1: 0x0040, 0x12a2: 0x0040, 0x12a3: 0x0040,
+	0x12a4: 0x0040, 0x12a5: 0x0040, 0x12a6: 0x0040, 0x12a7: 0x0040, 0x12a8: 0x0040, 0x12a9: 0x0040,
+	0x12aa: 0x0040, 0x12ab: 0x0040, 0x12ac: 0x0040, 0x12ad: 0x0040, 0x12ae: 0x0040, 0x12af: 0x0040,
+	0x12b0: 0x0040, 0x12b1: 0x0040, 0x12b2: 0x0040, 0x12b3: 0x0040, 0x12b4: 0x0040, 0x12b5: 0x0040,
+	0x12b6: 0x0040, 0x12b7: 0x0040, 0x12b8: 0x0040, 0x12b9: 0x0040, 0x12ba: 0x0040, 0x12bb: 0x0040,
+	0x12bc: 0x0040, 0x12bd: 0x0040, 0x12be: 0x0040, 0x12bf: 0x0040,
+	// Block 0x4b, offset 0x12c0
+	0x12c0: 0x6fb9, 0x12c1: 0x6fd1, 0x12c2: 0x6fe9, 0x12c3: 0x7d4d, 0x12c4: 0x7d6d, 0x12c5: 0x7001,
+	0x12c6: 0x7001, 0x12c7: 0x0040, 0x12c8: 0x0040, 0x12c9: 0x0040, 0x12ca: 0x0040, 0x12cb: 0x0040,
+	0x12cc: 0x0040, 0x12cd: 0x0040, 0x12ce: 0x0040, 0x12cf: 0x0040, 0x12d0: 0x0040, 0x12d1: 0x0040,
+	0x12d2: 0x0040, 0x12d3: 0x7019, 0x12d4: 0x7041, 0x12d5: 0x7069, 0x12d6: 0x7091, 0x12d7: 0x70b9,
+	0x12d8: 0x0040, 0x12d9: 0x0040, 0x12da: 0x0040, 0x12db: 0x0040, 0x12dc: 0x0040, 0x12dd: 0x70e1,
+	0x12de: 0x3308, 0x12df: 0x7109, 0x12e0: 0x7131, 0x12e1: 0x20a9, 0x12e2: 0x20f1, 0x12e3: 0x7149,
+	0x12e4: 0x7161, 0x12e5: 0x7179, 0x12e6: 0x7191, 0x12e7: 0x71a9, 0x12e8: 0x71c1, 0x12e9: 0x1fb2,
+	0x12ea: 0x71d9, 0x12eb: 0x7201, 0x12ec: 0x7229, 0x12ed: 0x7261, 0x12ee: 0x7299, 0x12ef: 0x72c1,
+	0x12f0: 0x72e9, 0x12f1: 0x7311, 0x12f2: 0x7339, 0x12f3: 0x7361, 0x12f4: 0x7389, 0x12f5: 0x73b1,
+	0x12f6: 0x73d9, 0x12f7: 0x0040, 0x12f8: 0x7401, 0x12f9: 0x7429, 0x12fa: 0x7451, 0x12fb: 0x7479,
+	0x12fc: 0x74a1, 0x12fd: 0x0040, 0x12fe: 0x74c9, 0x12ff: 0x0040,
+	// Block 0x4c, offset 0x1300
+	0x1300: 0x74f1, 0x1301: 0x7519, 0x1302: 0x0040, 0x1303: 0x7541, 0x1304: 0x7569, 0x1305: 0x0040,
+	0x1306: 0x7591, 0x1307: 0x75b9, 0x1308: 0x75e1, 0x1309: 0x7609, 0x130a: 0x7631, 0x130b: 0x7659,
+	0x130c: 0x7681, 0x130d: 0x76a9, 0x130e: 0x76d1, 0x130f: 0x76f9, 0x1310: 0x7721, 0x1311: 0x7721,
+	0x1312: 0x7739, 0x1313: 0x7739, 0x1314: 0x7739, 0x1315: 0x7739, 0x1316: 0x7751, 0x1317: 0x7751,
+	0x1318: 0x7751, 0x1319: 0x7751, 0x131a: 0x7769, 0x131b: 0x7769, 0x131c: 0x7769, 0x131d: 0x7769,
+	0x131e: 0x7781, 0x131f: 0x7781, 0x1320: 0x7781, 0x1321: 0x7781, 0x1322: 0x7799, 0x1323: 0x7799,
+	0x1324: 0x7799, 0x1325: 0x7799, 0x1326: 0x77b1, 0x1327: 0x77b1, 0x1328: 0x77b1, 0x1329: 0x77b1,
+	0x132a: 0x77c9, 0x132b: 0x77c9, 0x132c: 0x77c9, 0x132d: 0x77c9, 0x132e: 0x77e1, 0x132f: 0x77e1,
+	0x1330: 0x77e1, 0x1331: 0x77e1, 0x1332: 0x77f9, 0x1333: 0x77f9, 0x1334: 0x77f9, 0x1335: 0x77f9,
+	0x1336: 0x7811, 0x1337: 0x7811, 0x1338: 0x7811, 0x1339: 0x7811, 0x133a: 0x7829, 0x133b: 0x7829,
+	0x133c: 0x7829, 0x133d: 0x7829, 0x133e: 0x7841, 0x133f: 0x7841,
+	// Block 0x4d, offset 0x1340
+	0x1340: 0x7841, 0x1341: 0x7841, 0x1342: 0x7859, 0x1343: 0x7859, 0x1344: 0x7871, 0x1345: 0x7871,
+	0x1346: 0x7889, 0x1347: 0x7889, 0x1348: 0x78a1, 0x1349: 0x78a1, 0x134a: 0x78b9, 0x134b: 0x78b9,
+	0x134c: 0x78d1, 0x134d: 0x78d1, 0x134e: 0x78e9, 0x134f: 0x78e9, 0x1350: 0x78e9, 0x1351: 0x78e9,
+	0x1352: 0x7901, 0x1353: 0x7901, 0x1354: 0x7901, 0x1355: 0x7901, 0x1356: 0x7919, 0x1357: 0x7919,
+	0x1358: 0x7919, 0x1359: 0x7919, 0x135a: 0x7931, 0x135b: 0x7931, 0x135c: 0x7931, 0x135d: 0x7931,
+	0x135e: 0x7949, 0x135f: 0x7949, 0x1360: 0x7961, 0x1361: 0x7961, 0x1362: 0x7961, 0x1363: 0x7961,
+	0x1364: 0x7979, 0x1365: 0x7979, 0x1366: 0x7991, 0x1367: 0x7991, 0x1368: 0x7991, 0x1369: 0x7991,
+	0x136a: 0x79a9, 0x136b: 0x79a9, 0x136c: 0x79a9, 0x136d: 0x79a9, 0x136e: 0x79c1, 0x136f: 0x79c1,
+	0x1370: 0x79d9, 0x1371: 0x79d9, 0x1372: 0x0818, 0x1373: 0x0818, 0x1374: 0x0818, 0x1375: 0x0818,
+	0x1376: 0x0818, 0x1377: 0x0818, 0x1378: 0x0818, 0x1379: 0x0818, 0x137a: 0x0818, 0x137b: 0x0818,
+	0x137c: 0x0818, 0x137d: 0x0818, 0x137e: 0x0818, 0x137f: 0x0818,
+	// Block 0x4e, offset 0x1380
+	0x1380: 0x0818, 0x1381: 0x0818, 0x1382: 0x0040, 0x1383: 0x0040, 0x1384: 0x0040, 0x1385: 0x0040,
+	0x1386: 0x0040, 0x1387: 0x0040, 0x1388: 0x0040, 0x1389: 0x0040, 0x138a: 0x0040, 0x138b: 0x0040,
+	0x138c: 0x0040, 0x138d: 0x0040, 0x138e: 0x0040, 0x138f: 0x0040, 0x1390: 0x0040, 0x1391: 0x0040,
+	0x1392: 0x0040, 0x1393: 0x79f1, 0x1394: 0x79f1, 0x1395: 0x79f1, 0x1396: 0x79f1, 0x1397: 0x7a09,
+	0x1398: 0x7a09, 0x1399: 0x7a21, 0x139a: 0x7a21, 0x139b: 0x7a39, 0x139c: 0x7a39, 0x139d: 0x0479,
+	0x139e: 0x7a51, 0x139f: 0x7a51, 0x13a0: 0x7a69, 0x13a1: 0x7a69, 0x13a2: 0x7a81, 0x13a3: 0x7a81,
+	0x13a4: 0x7a99, 0x13a5: 0x7a99, 0x13a6: 0x7a99, 0x13a7: 0x7a99, 0x13a8: 0x7ab1, 0x13a9: 0x7ab1,
+	0x13aa: 0x7ac9, 0x13ab: 0x7ac9, 0x13ac: 0x7af1, 0x13ad: 0x7af1, 0x13ae: 0x7b19, 0x13af: 0x7b19,
+	0x13b0: 0x7b41, 0x13b1: 0x7b41, 0x13b2: 0x7b69, 0x13b3: 0x7b69, 0x13b4: 0x7b91, 0x13b5: 0x7b91,
+	0x13b6: 0x7bb9, 0x13b7: 0x7bb9, 0x13b8: 0x7bb9, 0x13b9: 0x7be1, 0x13ba: 0x7be1, 0x13bb: 0x7be1,
+	0x13bc: 0x7c09, 0x13bd: 0x7c09, 0x13be: 0x7c09, 0x13bf: 0x7c09,
+	// Block 0x4f, offset 0x13c0
+	0x13c0: 0x85f9, 0x13c1: 0x8621, 0x13c2: 0x8649, 0x13c3: 0x8671, 0x13c4: 0x8699, 0x13c5: 0x86c1,
+	0x13c6: 0x86e9, 0x13c7: 0x8711, 0x13c8: 0x8739, 0x13c9: 0x8761, 0x13ca: 0x8789, 0x13cb: 0x87b1,
+	0x13cc: 0x87d9, 0x13cd: 0x8801, 0x13ce: 0x8829, 0x13cf: 0x8851, 0x13d0: 0x8879, 0x13d1: 0x88a1,
+	0x13d2: 0x88c9, 0x13d3: 0x88f1, 0x13d4: 0x8919, 0x13d5: 0x8941, 0x13d6: 0x8969, 0x13d7: 0x8991,
+	0x13d8: 0x89b9, 0x13d9: 0x89e1, 0x13da: 0x8a09, 0x13db: 0x8a31, 0x13dc: 0x8a59, 0x13dd: 0x8a81,
+	0x13de: 0x8aaa, 0x13df: 0x8ada, 0x13e0: 0x8b0a, 0x13e1: 0x8b3a, 0x13e2: 0x8b6a, 0x13e3: 0x8b9a,
+	0x13e4: 0x8bc9, 0x13e5: 0x8bf1, 0x13e6: 0x7c71, 0x13e7: 0x8c19, 0x13e8: 0x7be1, 0x13e9: 0x7c99,
+	0x13ea: 0x8c41, 0x13eb: 0x8c69, 0x13ec: 0x7d39, 0x13ed: 0x8c91, 0x13ee: 0x7d61, 0x13ef: 0x7d89,
+	0x13f0: 0x8cb9, 0x13f1: 0x8ce1, 0x13f2: 0x7e29, 0x13f3: 0x8d09, 0x13f4: 0x7e51, 0x13f5: 0x7e79,
+	0x13f6: 0x8d31, 0x13f7: 0x8d59, 0x13f8: 0x7ec9, 0x13f9: 0x8d81, 0x13fa: 0x7ef1, 0x13fb: 0x7f19,
+	0x13fc: 0x83a1, 0x13fd: 0x83c9, 0x13fe: 0x8441, 0x13ff: 0x8469,
+	// Block 0x50, offset 0x1400
+	0x1400: 0x8491, 0x1401: 0x8531, 0x1402: 0x8559, 0x1403: 0x8581, 0x1404: 0x85a9, 0x1405: 0x8649,
+	0x1406: 0x8671, 0x1407: 0x8699, 0x1408: 0x8da9, 0x1409: 0x8739, 0x140a: 0x8dd1, 0x140b: 0x8df9,
+	0x140c: 0x8829, 0x140d: 0x8e21, 0x140e: 0x8851, 0x140f: 0x8879, 0x1410: 0x8a81, 0x1411: 0x8e49,
+	0x1412: 0x8e71, 0x1413: 0x89b9, 0x1414: 0x8e99, 0x1415: 0x89e1, 0x1416: 0x8a09, 0x1417: 0x7c21,
+	0x1418: 0x7c49, 0x1419: 0x8ec1, 0x141a: 0x7c71, 0x141b: 0x8ee9, 0x141c: 0x7cc1, 0x141d: 0x7ce9,
+	0x141e: 0x7d11, 0x141f: 0x7d39, 0x1420: 0x8f11, 0x1421: 0x7db1, 0x1422: 0x7dd9, 0x1423: 0x7e01,
+	0x1424: 0x7e29, 0x1425: 0x8f39, 0x1426: 0x7ec9, 0x1427: 0x7f41, 0x1428: 0x7f69, 0x1429: 0x7f91,
+	0x142a: 0x7fb9, 0x142b: 0x7fe1, 0x142c: 0x8031, 0x142d: 0x8059, 0x142e: 0x8081, 0x142f: 0x80a9,
+	0x1430: 0x80d1, 0x1431: 0x80f9, 0x1432: 0x8f61, 0x1433: 0x8121, 0x1434: 0x8149, 0x1435: 0x8171,
+	0x1436: 0x8199, 0x1437: 0x81c1, 0x1438: 0x81e9, 0x1439: 0x8239, 0x143a: 0x8261, 0x143b: 0x8289,
+	0x143c: 0x82b1, 0x143d: 0x82d9, 0x143e: 0x8301, 0x143f: 0x8329,
+	// Block 0x51, offset 0x1440
+	0x1440: 0x8351, 0x1441: 0x8379, 0x1442: 0x83f1, 0x1443: 0x8419, 0x1444: 0x84b9, 0x1445: 0x84e1,
+	0x1446: 0x8509, 0x1447: 0x8531, 0x1448: 0x8559, 0x1449: 0x85d1, 0x144a: 0x85f9, 0x144b: 0x8621,
+	0x144c: 0x8649, 0x144d: 0x8f89, 0x144e: 0x86c1, 0x144f: 0x86e9, 0x1450: 0x8711, 0x1451: 0x8739,
+	0x1452: 0x87b1, 0x1453: 0x87d9, 0x1454: 0x8801, 0x1455: 0x8829, 0x1456: 0x8fb1, 0x1457: 0x88a1,
+	0x1458: 0x88c9, 0x1459: 0x8fd9, 0x145a: 0x8941, 0x145b: 0x8969, 0x145c: 0x8991, 0x145d: 0x89b9,
+	0x145e: 0x9001, 0x145f: 0x7c71, 0x1460: 0x8ee9, 0x1461: 0x7d39, 0x1462: 0x8f11, 0x1463: 0x7e29,
+	0x1464: 0x8f39, 0x1465: 0x7ec9, 0x1466: 0x9029, 0x1467: 0x80d1, 0x1468: 0x9051, 0x1469: 0x9079,
+	0x146a: 0x90a1, 0x146b: 0x8531, 0x146c: 0x8559, 0x146d: 0x8649, 0x146e: 0x8829, 0x146f: 0x8fb1,
+	0x1470: 0x89b9, 0x1471: 0x9001, 0x1472: 0x90c9, 0x1473: 0x9101, 0x1474: 0x9139, 0x1475: 0x9171,
+	0x1476: 0x9199, 0x1477: 0x91c1, 0x1478: 0x91e9, 0x1479: 0x9211, 0x147a: 0x9239, 0x147b: 0x9261,
+	0x147c: 0x9289, 0x147d: 0x92b1, 0x147e: 0x92d9, 0x147f: 0x9301,
+	// Block 0x52, offset 0x1480
+	0x1480: 0x9329, 0x1481: 0x9351, 0x1482: 0x9379, 0x1483: 0x93a1, 0x1484: 0x93c9, 0x1485: 0x93f1,
+	0x1486: 0x9419, 0x1487: 0x9441, 0x1488: 0x9469, 0x1489: 0x9491, 0x148a: 0x94b9, 0x148b: 0x94e1,
+	0x148c: 0x9079, 0x148d: 0x9509, 0x148e: 0x9531, 0x148f: 0x9559, 0x1490: 0x9581, 0x1491: 0x9171,
+	0x1492: 0x9199, 0x1493: 0x91c1, 0x1494: 0x91e9, 0x1495: 0x9211, 0x1496: 0x9239, 0x1497: 0x9261,
+	0x1498: 0x9289, 0x1499: 0x92b1, 0x149a: 0x92d9, 0x149b: 0x9301, 0x149c: 0x9329, 0x149d: 0x9351,
+	0x149e: 0x9379, 0x149f: 0x93a1, 0x14a0: 0x93c9, 0x14a1: 0x93f1, 0x14a2: 0x9419, 0x14a3: 0x9441,
+	0x14a4: 0x9469, 0x14a5: 0x9491, 0x14a6: 0x94b9, 0x14a7: 0x94e1, 0x14a8: 0x9079, 0x14a9: 0x9509,
+	0x14aa: 0x9531, 0x14ab: 0x9559, 0x14ac: 0x9581, 0x14ad: 0x9491, 0x14ae: 0x94b9, 0x14af: 0x94e1,
+	0x14b0: 0x9079, 0x14b1: 0x9051, 0x14b2: 0x90a1, 0x14b3: 0x8211, 0x14b4: 0x8059, 0x14b5: 0x8081,
+	0x14b6: 0x80a9, 0x14b7: 0x9491, 0x14b8: 0x94b9, 0x14b9: 0x94e1, 0x14ba: 0x8211, 0x14bb: 0x8239,
+	0x14bc: 0x95a9, 0x14bd: 0x95a9, 0x14be: 0x0018, 0x14bf: 0x0018,
+	// Block 0x53, offset 0x14c0
+	0x14c0: 0x0040, 0x14c1: 0x0040, 0x14c2: 0x0040, 0x14c3: 0x0040, 0x14c4: 0x0040, 0x14c5: 0x0040,
+	0x14c6: 0x0040, 0x14c7: 0x0040, 0x14c8: 0x0040, 0x14c9: 0x0040, 0x14ca: 0x0040, 0x14cb: 0x0040,
+	0x14cc: 0x0040, 0x14cd: 0x0040, 0x14ce: 0x0040, 0x14cf: 0x0040, 0x14d0: 0x95d1, 0x14d1: 0x9609,
+	0x14d2: 0x9609, 0x14d3: 0x9641, 0x14d4: 0x9679, 0x14d5: 0x96b1, 0x14d6: 0x96e9, 0x14d7: 0x9721,
+	0x14d8: 0x9759, 0x14d9: 0x9759, 0x14da: 0x9791, 0x14db: 0x97c9, 0x14dc: 0x9801, 0x14dd: 0x9839,
+	0x14de: 0x9871, 0x14df: 0x98a9, 0x14e0: 0x98a9, 0x14e1: 0x98e1, 0x14e2: 0x9919, 0x14e3: 0x9919,
+	0x14e4: 0x9951, 0x14e5: 0x9951, 0x14e6: 0x9989, 0x14e7: 0x99c1, 0x14e8: 0x99c1, 0x14e9: 0x99f9,
+	0x14ea: 0x9a31, 0x14eb: 0x9a31, 0x14ec: 0x9a69, 0x14ed: 0x9a69, 0x14ee: 0x9aa1, 0x14ef: 0x9ad9,
+	0x14f0: 0x9ad9, 0x14f1: 0x9b11, 0x14f2: 0x9b11, 0x14f3: 0x9b49, 0x14f4: 0x9b81, 0x14f5: 0x9bb9,
+	0x14f6: 0x9bf1, 0x14f7: 0x9bf1, 0x14f8: 0x9c29, 0x14f9: 0x9c61, 0x14fa: 0x9c99, 0x14fb: 0x9cd1,
+	0x14fc: 0x9d09, 0x14fd: 0x9d09, 0x14fe: 0x9d41, 0x14ff: 0x9d79,
+	// Block 0x54, offset 0x1500
+	0x1500: 0xa949, 0x1501: 0xa981, 0x1502: 0xa9b9, 0x1503: 0xa8a1, 0x1504: 0x9bb9, 0x1505: 0x9989,
+	0x1506: 0xa9f1, 0x1507: 0xaa29, 0x1508: 0x0040, 0x1509: 0x0040, 0x150a: 0x0040, 0x150b: 0x0040,
+	0x150c: 0x0040, 0x150d: 0x0040, 0x150e: 0x0040, 0x150f: 0x0040, 0x1510: 0x0040, 0x1511: 0x0040,
+	0x1512: 0x0040, 0x1513: 0x0040, 0x1514: 0x0040, 0x1515: 0x0040, 0x1516: 0x0040, 0x1517: 0x0040,
+	0x1518: 0x0040, 0x1519: 0x0040, 0x151a: 0x0040, 0x151b: 0x0040, 0x151c: 0x0040, 0x151d: 0x0040,
+	0x151e: 0x0040, 0x151f: 0x0040, 0x1520: 0x0040, 0x1521: 0x0040, 0x1522: 0x0040, 0x1523: 0x0040,
+	0x1524: 0x0040, 0x1525: 0x0040, 0x1526: 0x0040, 0x1527: 0x0040, 0x1528: 0x0040, 0x1529: 0x0040,
+	0x152a: 0x0040, 0x152b: 0x0040, 0x152c: 0x0040, 0x152d: 0x0040, 0x152e: 0x0040, 0x152f: 0x0040,
+	0x1530: 0xaa61, 0x1531: 0xaa99, 0x1532: 0xaad1, 0x1533: 0xab19, 0x1534: 0xab61, 0x1535: 0xaba9,
+	0x1536: 0xabf1, 0x1537: 0xac39, 0x1538: 0xac81, 0x1539: 0xacc9, 0x153a: 0xad02, 0x153b: 0xae12,
+	0x153c: 0xae91, 0x153d: 0x0018, 0x153e: 0x0040, 0x153f: 0x0040,
+	// Block 0x55, offset 0x1540
+	0x1540: 0x33c0, 0x1541: 0x33c0, 0x1542: 0x33c0, 0x1543: 0x33c0, 0x1544: 0x33c0, 0x1545: 0x33c0,
+	0x1546: 0x33c0, 0x1547: 0x33c0, 0x1548: 0x33c0, 0x1549: 0x33c0, 0x154a: 0x33c0, 0x154b: 0x33c0,
+	0x154c: 0x33c0, 0x154d: 0x33c0, 0x154e: 0x33c0, 0x154f: 0x33c0, 0x1550: 0xaeda, 0x1551: 0x7d8d,
+	0x1552: 0x0040, 0x1553: 0xaeea, 0x1554: 0x03c2, 0x1555: 0xaefa, 0x1556: 0xaf0a, 0x1557: 0x7dad,
+	0x1558: 0x7dcd, 0x1559: 0x0040, 0x155a: 0x0040, 0x155b: 0x0040, 0x155c: 0x0040, 0x155d: 0x0040,
+	0x155e: 0x0040, 0x155f: 0x0040, 0x1560: 0x3308, 0x1561: 0x3308, 0x1562: 0x3308, 0x1563: 0x3308,
+	0x1564: 0x3308, 0x1565: 0x3308, 0x1566: 0x3308, 0x1567: 0x3308, 0x1568: 0x3308, 0x1569: 0x3308,
+	0x156a: 0x3308, 0x156b: 0x3308, 0x156c: 0x3308, 0x156d: 0x3308, 0x156e: 0x3308, 0x156f: 0x3308,
+	0x1570: 0x0040, 0x1571: 0x7ded, 0x1572: 0x7e0d, 0x1573: 0xaf1a, 0x1574: 0xaf1a, 0x1575: 0x1fd2,
+	0x1576: 0x1fe2, 0x1577: 0xaf2a, 0x1578: 0xaf3a, 0x1579: 0x7e2d, 0x157a: 0x7e4d, 0x157b: 0x7e6d,
+	0x157c: 0x7e2d, 0x157d: 0x7e8d, 0x157e: 0x7ead, 0x157f: 0x7e8d,
+	// Block 0x56, offset 0x1580
+	0x1580: 0x7ecd, 0x1581: 0x7eed, 0x1582: 0x7f0d, 0x1583: 0x7eed, 0x1584: 0x7f2d, 0x1585: 0x0018,
+	0x1586: 0x0018, 0x1587: 0xaf4a, 0x1588: 0xaf5a, 0x1589: 0x7f4e, 0x158a: 0x7f6e, 0x158b: 0x7f8e,
+	0x158c: 0x7fae, 0x158d: 0xaf1a, 0x158e: 0xaf1a, 0x158f: 0xaf1a, 0x1590: 0xaeda, 0x1591: 0x7fcd,
+	0x1592: 0x0040, 0x1593: 0x0040, 0x1594: 0x03c2, 0x1595: 0xaeea, 0x1596: 0xaf0a, 0x1597: 0xaefa,
+	0x1598: 0x7fed, 0x1599: 0x1fd2, 0x159a: 0x1fe2, 0x159b: 0xaf2a, 0x159c: 0xaf3a, 0x159d: 0x7ecd,
+	0x159e: 0x7f2d, 0x159f: 0xaf6a, 0x15a0: 0xaf7a, 0x15a1: 0xaf8a, 0x15a2: 0x1fb2, 0x15a3: 0xaf99,
+	0x15a4: 0xafaa, 0x15a5: 0xafba, 0x15a6: 0x1fc2, 0x15a7: 0x0040, 0x15a8: 0xafca, 0x15a9: 0xafda,
+	0x15aa: 0xafea, 0x15ab: 0xaffa, 0x15ac: 0x0040, 0x15ad: 0x0040, 0x15ae: 0x0040, 0x15af: 0x0040,
+	0x15b0: 0x800e, 0x15b1: 0xb009, 0x15b2: 0x802e, 0x15b3: 0x0808, 0x15b4: 0x804e, 0x15b5: 0x0040,
+	0x15b6: 0x806e, 0x15b7: 0xb031, 0x15b8: 0x808e, 0x15b9: 0xb059, 0x15ba: 0x80ae, 0x15bb: 0xb081,
+	0x15bc: 0x80ce, 0x15bd: 0xb0a9, 0x15be: 0x80ee, 0x15bf: 0xb0d1,
+	// Block 0x57, offset 0x15c0
+	0x15c0: 0xb0f9, 0x15c1: 0xb111, 0x15c2: 0xb111, 0x15c3: 0xb129, 0x15c4: 0xb129, 0x15c5: 0xb141,
+	0x15c6: 0xb141, 0x15c7: 0xb159, 0x15c8: 0xb159, 0x15c9: 0xb171, 0x15ca: 0xb171, 0x15cb: 0xb171,
+	0x15cc: 0xb171, 0x15cd: 0xb189, 0x15ce: 0xb189, 0x15cf: 0xb1a1, 0x15d0: 0xb1a1, 0x15d1: 0xb1a1,
+	0x15d2: 0xb1a1, 0x15d3: 0xb1b9, 0x15d4: 0xb1b9, 0x15d5: 0xb1d1, 0x15d6: 0xb1d1, 0x15d7: 0xb1d1,
+	0x15d8: 0xb1d1, 0x15d9: 0xb1e9, 0x15da: 0xb1e9, 0x15db: 0xb1e9, 0x15dc: 0xb1e9, 0x15dd: 0xb201,
+	0x15de: 0xb201, 0x15df: 0xb201, 0x15e0: 0xb201, 0x15e1: 0xb219, 0x15e2: 0xb219, 0x15e3: 0xb219,
+	0x15e4: 0xb219, 0x15e5: 0xb231, 0x15e6: 0xb231, 0x15e7: 0xb231, 0x15e8: 0xb231, 0x15e9: 0xb249,
+	0x15ea: 0xb249, 0x15eb: 0xb261, 0x15ec: 0xb261, 0x15ed: 0xb279, 0x15ee: 0xb279, 0x15ef: 0xb291,
+	0x15f0: 0xb291, 0x15f1: 0xb2a9, 0x15f2: 0xb2a9, 0x15f3: 0xb2a9, 0x15f4: 0xb2a9, 0x15f5: 0xb2c1,
+	0x15f6: 0xb2c1, 0x15f7: 0xb2c1, 0x15f8: 0xb2c1, 0x15f9: 0xb2d9, 0x15fa: 0xb2d9, 0x15fb: 0xb2d9,
+	0x15fc: 0xb2d9, 0x15fd: 0xb2f1, 0x15fe: 0xb2f1, 0x15ff: 0xb2f1,
+	// Block 0x58, offset 0x1600
+	0x1600: 0xb2f1, 0x1601: 0xb309, 0x1602: 0xb309, 0x1603: 0xb309, 0x1604: 0xb309, 0x1605: 0xb321,
+	0x1606: 0xb321, 0x1607: 0xb321, 0x1608: 0xb321, 0x1609: 0xb339, 0x160a: 0xb339, 0x160b: 0xb339,
+	0x160c: 0xb339, 0x160d: 0xb351, 0x160e: 0xb351, 0x160f: 0xb351, 0x1610: 0xb351, 0x1611: 0xb369,
+	0x1612: 0xb369, 0x1613: 0xb369, 0x1614: 0xb369, 0x1615: 0xb381, 0x1616: 0xb381, 0x1617: 0xb381,
+	0x1618: 0xb381, 0x1619: 0xb399, 0x161a: 0xb399, 0x161b: 0xb399, 0x161c: 0xb399, 0x161d: 0xb3b1,
+	0x161e: 0xb3b1, 0x161f: 0xb3b1, 0x1620: 0xb3b1, 0x1621: 0xb3c9, 0x1622: 0xb3c9, 0x1623: 0xb3c9,
+	0x1624: 0xb3c9, 0x1625: 0xb3e1, 0x1626: 0xb3e1, 0x1627: 0xb3e1, 0x1628: 0xb3e1, 0x1629: 0xb3f9,
+	0x162a: 0xb3f9, 0x162b: 0xb3f9, 0x162c: 0xb3f9, 0x162d: 0xb411, 0x162e: 0xb411, 0x162f: 0x7ab1,
+	0x1630: 0x7ab1, 0x1631: 0xb429, 0x1632: 0xb429, 0x1633: 0xb429, 0x1634: 0xb429, 0x1635: 0xb441,
+	0x1636: 0xb441, 0x1637: 0xb469, 0x1638: 0xb469, 0x1639: 0xb491, 0x163a: 0xb491, 0x163b: 0xb4b9,
+	0x163c: 0xb4b9, 0x163d: 0x0040, 0x163e: 0x0040, 0x163f: 0x03c0,
+	// Block 0x59, offset 0x1640
+	0x1640: 0x0040, 0x1641: 0xaefa, 0x1642: 0xb4e2, 0x1643: 0xaf6a, 0x1644: 0xafda, 0x1645: 0xafea,
+	0x1646: 0xaf7a, 0x1647: 0xb4f2, 0x1648: 0x1fd2, 0x1649: 0x1fe2, 0x164a: 0xaf8a, 0x164b: 0x1fb2,
+	0x164c: 0xaeda, 0x164d: 0xaf99, 0x164e: 0x29d1, 0x164f: 0xb502, 0x1650: 0x1f41, 0x1651: 0x00c9,
+	0x1652: 0x0069, 0x1653: 0x0079, 0x1654: 0x1f51, 0x1655: 0x1f61, 0x1656: 0x1f71, 0x1657: 0x1f81,
+	0x1658: 0x1f91, 0x1659: 0x1fa1, 0x165a: 0xaeea, 0x165b: 0x03c2, 0x165c: 0xafaa, 0x165d: 0x1fc2,
+	0x165e: 0xafba, 0x165f: 0xaf0a, 0x1660: 0xaffa, 0x1661: 0x0039, 0x1662: 0x0ee9, 0x1663: 0x1159,
+	0x1664: 0x0ef9, 0x1665: 0x0f09, 0x1666: 0x1199, 0x1667: 0x0f31, 0x1668: 0x0249, 0x1669: 0x0f41,
+	0x166a: 0x0259, 0x166b: 0x0f51, 0x166c: 0x0359, 0x166d: 0x0f61, 0x166e: 0x0f71, 0x166f: 0x00d9,
+	0x1670: 0x0f99, 0x1671: 0x2039, 0x1672: 0x0269, 0x1673: 0x01d9, 0x1674: 0x0fa9, 0x1675: 0x0fb9,
+	0x1676: 0x1089, 0x1677: 0x0279, 0x1678: 0x0369, 0x1679: 0x0289, 0x167a: 0x13d1, 0x167b: 0xaf4a,
+	0x167c: 0xafca, 0x167d: 0xaf5a, 0x167e: 0xb512, 0x167f: 0xaf1a,
+	// Block 0x5a, offset 0x1680
+	0x1680: 0x1caa, 0x1681: 0x0039, 0x1682: 0x0ee9, 0x1683: 0x1159, 0x1684: 0x0ef9, 0x1685: 0x0f09,
+	0x1686: 0x1199, 0x1687: 0x0f31, 0x1688: 0x0249, 0x1689: 0x0f41, 0x168a: 0x0259, 0x168b: 0x0f51,
+	0x168c: 0x0359, 0x168d: 0x0f61, 0x168e: 0x0f71, 0x168f: 0x00d9, 0x1690: 0x0f99, 0x1691: 0x2039,
+	0x1692: 0x0269, 0x1693: 0x01d9, 0x1694: 0x0fa9, 0x1695: 0x0fb9, 0x1696: 0x1089, 0x1697: 0x0279,
+	0x1698: 0x0369, 0x1699: 0x0289, 0x169a: 0x13d1, 0x169b: 0xaf2a, 0x169c: 0xb522, 0x169d: 0xaf3a,
+	0x169e: 0xb532, 0x169f: 0x810d, 0x16a0: 0x812d, 0x16a1: 0x29d1, 0x16a2: 0x814d, 0x16a3: 0x814d,
+	0x16a4: 0x816d, 0x16a5: 0x818d, 0x16a6: 0x81ad, 0x16a7: 0x81cd, 0x16a8: 0x81ed, 0x16a9: 0x820d,
+	0x16aa: 0x822d, 0x16ab: 0x824d, 0x16ac: 0x826d, 0x16ad: 0x828d, 0x16ae: 0x82ad, 0x16af: 0x82cd,
+	0x16b0: 0x82ed, 0x16b1: 0x830d, 0x16b2: 0x832d, 0x16b3: 0x834d, 0x16b4: 0x836d, 0x16b5: 0x838d,
+	0x16b6: 0x83ad, 0x16b7: 0x83cd, 0x16b8: 0x83ed, 0x16b9: 0x840d, 0x16ba: 0x842d, 0x16bb: 0x844d,
+	0x16bc: 0x81ed, 0x16bd: 0x846d, 0x16be: 0x848d, 0x16bf: 0x824d,
+	// Block 0x5b, offset 0x16c0
+	0x16c0: 0x84ad, 0x16c1: 0x84cd, 0x16c2: 0x84ed, 0x16c3: 0x850d, 0x16c4: 0x852d, 0x16c5: 0x854d,
+	0x16c6: 0x856d, 0x16c7: 0x858d, 0x16c8: 0x850d, 0x16c9: 0x85ad, 0x16ca: 0x850d, 0x16cb: 0x85cd,
+	0x16cc: 0x85cd, 0x16cd: 0x85ed, 0x16ce: 0x85ed, 0x16cf: 0x860d, 0x16d0: 0x854d, 0x16d1: 0x862d,
+	0x16d2: 0x864d, 0x16d3: 0x862d, 0x16d4: 0x866d, 0x16d5: 0x864d, 0x16d6: 0x868d, 0x16d7: 0x868d,
+	0x16d8: 0x86ad, 0x16d9: 0x86ad, 0x16da: 0x86cd, 0x16db: 0x86cd, 0x16dc: 0x864d, 0x16dd: 0x814d,
+	0x16de: 0x86ed, 0x16df: 0x870d, 0x16e0: 0x0040, 0x16e1: 0x872d, 0x16e2: 0x874d, 0x16e3: 0x876d,
+	0x16e4: 0x878d, 0x16e5: 0x876d, 0x16e6: 0x87ad, 0x16e7: 0x87cd, 0x16e8: 0x87ed, 0x16e9: 0x87ed,
+	0x16ea: 0x880d, 0x16eb: 0x880d, 0x16ec: 0x882d, 0x16ed: 0x882d, 0x16ee: 0x880d, 0x16ef: 0x880d,
+	0x16f0: 0x884d, 0x16f1: 0x886d, 0x16f2: 0x888d, 0x16f3: 0x88ad, 0x16f4: 0x88cd, 0x16f5: 0x88ed,
+	0x16f6: 0x88ed, 0x16f7: 0x88ed, 0x16f8: 0x890d, 0x16f9: 0x890d, 0x16fa: 0x890d, 0x16fb: 0x890d,
+	0x16fc: 0x87ed, 0x16fd: 0x87ed, 0x16fe: 0x87ed, 0x16ff: 0x0040,
+	// Block 0x5c, offset 0x1700
+	0x1700: 0x0040, 0x1701: 0x0040, 0x1702: 0x874d, 0x1703: 0x872d, 0x1704: 0x892d, 0x1705: 0x872d,
+	0x1706: 0x874d, 0x1707: 0x872d, 0x1708: 0x0040, 0x1709: 0x0040, 0x170a: 0x894d, 0x170b: 0x874d,
+	0x170c: 0x896d, 0x170d: 0x892d, 0x170e: 0x896d, 0x170f: 0x874d, 0x1710: 0x0040, 0x1711: 0x0040,
+	0x1712: 0x898d, 0x1713: 0x89ad, 0x1714: 0x88ad, 0x1715: 0x896d, 0x1716: 0x892d, 0x1717: 0x896d,
+	0x1718: 0x0040, 0x1719: 0x0040, 0x171a: 0x89cd, 0x171b: 0x89ed, 0x171c: 0x89cd, 0x171d: 0x0040,
+	0x171e: 0x0040, 0x171f: 0x0040, 0x1720: 0xb541, 0x1721: 0xb559, 0x1722: 0xb571, 0x1723: 0x8a0e,
+	0x1724: 0xb589, 0x1725: 0xb5a1, 0x1726: 0x8a2d, 0x1727: 0x0040, 0x1728: 0x8a4d, 0x1729: 0x8a6d,
+	0x172a: 0x8a8d, 0x172b: 0x8a6d, 0x172c: 0x8aad, 0x172d: 0x8acd, 0x172e: 0x8aed, 0x172f: 0x0040,
+	0x1730: 0x0040, 0x1731: 0x0040, 0x1732: 0x0040, 0x1733: 0x0040, 0x1734: 0x0040, 0x1735: 0x0040,
+	0x1736: 0x0040, 0x1737: 0x0040, 0x1738: 0x0040, 0x1739: 0x0340, 0x173a: 0x0340, 0x173b: 0x0340,
+	0x173c: 0x0040, 0x173d: 0x0040, 0x173e: 0x0040, 0x173f: 0x0040,
+	// Block 0x5d, offset 0x1740
+	0x1740: 0x0a08, 0x1741: 0x0a08, 0x1742: 0x0a08, 0x1743: 0x0a08, 0x1744: 0x0a08, 0x1745: 0x0c08,
+	0x1746: 0x0808, 0x1747: 0x0c08, 0x1748: 0x0818, 0x1749: 0x0c08, 0x174a: 0x0c08, 0x174b: 0x0808,
+	0x174c: 0x0808, 0x174d: 0x0908, 0x174e: 0x0c08, 0x174f: 0x0c08, 0x1750: 0x0c08, 0x1751: 0x0c08,
+	0x1752: 0x0c08, 0x1753: 0x0a08, 0x1754: 0x0a08, 0x1755: 0x0a08, 0x1756: 0x0a08, 0x1757: 0x0908,
+	0x1758: 0x0a08, 0x1759: 0x0a08, 0x175a: 0x0a08, 0x175b: 0x0a08, 0x175c: 0x0a08, 0x175d: 0x0c08,
+	0x175e: 0x0a08, 0x175f: 0x0a08, 0x1760: 0x0a08, 0x1761: 0x0c08, 0x1762: 0x0808, 0x1763: 0x0808,
+	0x1764: 0x0c08, 0x1765: 0x3308, 0x1766: 0x3308, 0x1767: 0x0040, 0x1768: 0x0040, 0x1769: 0x0040,
+	0x176a: 0x0040, 0x176b: 0x0a18, 0x176c: 0x0a18, 0x176d: 0x0a18, 0x176e: 0x0a18, 0x176f: 0x0c18,
+	0x1770: 0x0818, 0x1771: 0x0818, 0x1772: 0x0818, 0x1773: 0x0818, 0x1774: 0x0818, 0x1775: 0x0818,
+	0x1776: 0x0818, 0x1777: 0x0040, 0x1778: 0x0040, 0x1779: 0x0040, 0x177a: 0x0040, 0x177b: 0x0040,
+	0x177c: 0x0040, 0x177d: 0x0040, 0x177e: 0x0040, 0x177f: 0x0040,
+	// Block 0x5e, offset 0x1780
+	0x1780: 0x0a08, 0x1781: 0x0c08, 0x1782: 0x0a08, 0x1783: 0x0c08, 0x1784: 0x0c08, 0x1785: 0x0c08,
+	0x1786: 0x0a08, 0x1787: 0x0a08, 0x1788: 0x0a08, 0x1789: 0x0c08, 0x178a: 0x0a08, 0x178b: 0x0a08,
+	0x178c: 0x0c08, 0x178d: 0x0a08, 0x178e: 0x0c08, 0x178f: 0x0c08, 0x1790: 0x0a08, 0x1791: 0x0c08,
+	0x1792: 0x0040, 0x1793: 0x0040, 0x1794: 0x0040, 0x1795: 0x0040, 0x1796: 0x0040, 0x1797: 0x0040,
+	0x1798: 0x0040, 0x1799: 0x0818, 0x179a: 0x0818, 0x179b: 0x0818, 0x179c: 0x0818, 0x179d: 0x0040,
+	0x179e: 0x0040, 0x179f: 0x0040, 0x17a0: 0x0040, 0x17a1: 0x0040, 0x17a2: 0x0040, 0x17a3: 0x0040,
+	0x17a4: 0x0040, 0x17a5: 0x0040, 0x17a6: 0x0040, 0x17a7: 0x0040, 0x17a8: 0x0040, 0x17a9: 0x0c18,
+	0x17aa: 0x0c18, 0x17ab: 0x0c18, 0x17ac: 0x0c18, 0x17ad: 0x0a18, 0x17ae: 0x0a18, 0x17af: 0x0818,
+	0x17b0: 0x0040, 0x17b1: 0x0040, 0x17b2: 0x0040, 0x17b3: 0x0040, 0x17b4: 0x0040, 0x17b5: 0x0040,
+	0x17b6: 0x0040, 0x17b7: 0x0040, 0x17b8: 0x0040, 0x17b9: 0x0040, 0x17ba: 0x0040, 0x17bb: 0x0040,
+	0x17bc: 0x0040, 0x17bd: 0x0040, 0x17be: 0x0040, 0x17bf: 0x0040,
+	// Block 0x5f, offset 0x17c0
+	0x17c0: 0x3308, 0x17c1: 0x3308, 0x17c2: 0x3008, 0x17c3: 0x3008, 0x17c4: 0x0040, 0x17c5: 0x0008,
+	0x17c6: 0x0008, 0x17c7: 0x0008, 0x17c8: 0x0008, 0x17c9: 0x0008, 0x17ca: 0x0008, 0x17cb: 0x0008,
+	0x17cc: 0x0008, 0x17cd: 0x0040, 0x17ce: 0x0040, 0x17cf: 0x0008, 0x17d0: 0x0008, 0x17d1: 0x0040,
+	0x17d2: 0x0040, 0x17d3: 0x0008, 0x17d4: 0x0008, 0x17d5: 0x0008, 0x17d6: 0x0008, 0x17d7: 0x0008,
+	0x17d8: 0x0008, 0x17d9: 0x0008, 0x17da: 0x0008, 0x17db: 0x0008, 0x17dc: 0x0008, 0x17dd: 0x0008,
+	0x17de: 0x0008, 0x17df: 0x0008, 0x17e0: 0x0008, 0x17e1: 0x0008, 0x17e2: 0x0008, 0x17e3: 0x0008,
+	0x17e4: 0x0008, 0x17e5: 0x0008, 0x17e6: 0x0008, 0x17e7: 0x0008, 0x17e8: 0x0008, 0x17e9: 0x0040,
+	0x17ea: 0x0008, 0x17eb: 0x0008, 0x17ec: 0x0008, 0x17ed: 0x0008, 0x17ee: 0x0008, 0x17ef: 0x0008,
+	0x17f0: 0x0008, 0x17f1: 0x0040, 0x17f2: 0x0008, 0x17f3: 0x0008, 0x17f4: 0x0040, 0x17f5: 0x0008,
+	0x17f6: 0x0008, 0x17f7: 0x0008, 0x17f8: 0x0008, 0x17f9: 0x0008, 0x17fa: 0x0040, 0x17fb: 0x3308,
+	0x17fc: 0x3308, 0x17fd: 0x0008, 0x17fe: 0x3008, 0x17ff: 0x3008,
+	// Block 0x60, offset 0x1800
+	0x1800: 0x3308, 0x1801: 0x3008, 0x1802: 0x3008, 0x1803: 0x3008, 0x1804: 0x3008, 0x1805: 0x0040,
+	0x1806: 0x0040, 0x1807: 0x3008, 0x1808: 0x3008, 0x1809: 0x0040, 0x180a: 0x0040, 0x180b: 0x3008,
+	0x180c: 0x3008, 0x180d: 0x3808, 0x180e: 0x0040, 0x180f: 0x0040, 0x1810: 0x0008, 0x1811: 0x0040,
+	0x1812: 0x0040, 0x1813: 0x0040, 0x1814: 0x0040, 0x1815: 0x0040, 0x1816: 0x0040, 0x1817: 0x3008,
+	0x1818: 0x0040, 0x1819: 0x0040, 0x181a: 0x0040, 0x181b: 0x0040, 0x181c: 0x0040, 0x181d: 0x0008,
+	0x181e: 0x0008, 0x181f: 0x0008, 0x1820: 0x0008, 0x1821: 0x0008, 0x1822: 0x3008, 0x1823: 0x3008,
+	0x1824: 0x0040, 0x1825: 0x0040, 0x1826: 0x3308, 0x1827: 0x3308, 0x1828: 0x3308, 0x1829: 0x3308,
+	0x182a: 0x3308, 0x182b: 0x3308, 0x182c: 0x3308, 0x182d: 0x0040, 0x182e: 0x0040, 0x182f: 0x0040,
+	0x1830: 0x3308, 0x1831: 0x3308, 0x1832: 0x3308, 0x1833: 0x3308, 0x1834: 0x3308, 0x1835: 0x0040,
+	0x1836: 0x0040, 0x1837: 0x0040, 0x1838: 0x0040, 0x1839: 0x0040, 0x183a: 0x0040, 0x183b: 0x0040,
+	0x183c: 0x0040, 0x183d: 0x0040, 0x183e: 0x0040, 0x183f: 0x0040,
+	// Block 0x61, offset 0x1840
+	0x1840: 0x0039, 0x1841: 0x0ee9, 0x1842: 0x1159, 0x1843: 0x0ef9, 0x1844: 0x0f09, 0x1845: 0x1199,
+	0x1846: 0x0f31, 0x1847: 0x0249, 0x1848: 0x0f41, 0x1849: 0x0259, 0x184a: 0x0f51, 0x184b: 0x0359,
+	0x184c: 0x0f61, 0x184d: 0x0f71, 0x184e: 0x00d9, 0x184f: 0x0f99, 0x1850: 0x2039, 0x1851: 0x0269,
+	0x1852: 0x01d9, 0x1853: 0x0fa9, 0x1854: 0x0fb9, 0x1855: 0x1089, 0x1856: 0x0279, 0x1857: 0x0369,
+	0x1858: 0x0289, 0x1859: 0x13d1, 0x185a: 0x0039, 0x185b: 0x0ee9, 0x185c: 0x1159, 0x185d: 0x0ef9,
+	0x185e: 0x0f09, 0x185f: 0x1199, 0x1860: 0x0f31, 0x1861: 0x0249, 0x1862: 0x0f41, 0x1863: 0x0259,
+	0x1864: 0x0f51, 0x1865: 0x0359, 0x1866: 0x0f61, 0x1867: 0x0f71, 0x1868: 0x00d9, 0x1869: 0x0f99,
+	0x186a: 0x2039, 0x186b: 0x0269, 0x186c: 0x01d9, 0x186d: 0x0fa9, 0x186e: 0x0fb9, 0x186f: 0x1089,
+	0x1870: 0x0279, 0x1871: 0x0369, 0x1872: 0x0289, 0x1873: 0x13d1, 0x1874: 0x0039, 0x1875: 0x0ee9,
+	0x1876: 0x1159, 0x1877: 0x0ef9, 0x1878: 0x0f09, 0x1879: 0x1199, 0x187a: 0x0f31, 0x187b: 0x0249,
+	0x187c: 0x0f41, 0x187d: 0x0259, 0x187e: 0x0f51, 0x187f: 0x0359,
+	// Block 0x62, offset 0x1880
+	0x1880: 0x0f61, 0x1881: 0x0f71, 0x1882: 0x00d9, 0x1883: 0x0f99, 0x1884: 0x2039, 0x1885: 0x0269,
+	0x1886: 0x01d9, 0x1887: 0x0fa9, 0x1888: 0x0fb9, 0x1889: 0x1089, 0x188a: 0x0279, 0x188b: 0x0369,
+	0x188c: 0x0289, 0x188d: 0x13d1, 0x188e: 0x0039, 0x188f: 0x0ee9, 0x1890: 0x1159, 0x1891: 0x0ef9,
+	0x1892: 0x0f09, 0x1893: 0x1199, 0x1894: 0x0f31, 0x1895: 0x0040, 0x1896: 0x0f41, 0x1897: 0x0259,
+	0x1898: 0x0f51, 0x1899: 0x0359, 0x189a: 0x0f61, 0x189b: 0x0f71, 0x189c: 0x00d9, 0x189d: 0x0f99,
+	0x189e: 0x2039, 0x189f: 0x0269, 0x18a0: 0x01d9, 0x18a1: 0x0fa9, 0x18a2: 0x0fb9, 0x18a3: 0x1089,
+	0x18a4: 0x0279, 0x18a5: 0x0369, 0x18a6: 0x0289, 0x18a7: 0x13d1, 0x18a8: 0x0039, 0x18a9: 0x0ee9,
+	0x18aa: 0x1159, 0x18ab: 0x0ef9, 0x18ac: 0x0f09, 0x18ad: 0x1199, 0x18ae: 0x0f31, 0x18af: 0x0249,
+	0x18b0: 0x0f41, 0x18b1: 0x0259, 0x18b2: 0x0f51, 0x18b3: 0x0359, 0x18b4: 0x0f61, 0x18b5: 0x0f71,
+	0x18b6: 0x00d9, 0x18b7: 0x0f99, 0x18b8: 0x2039, 0x18b9: 0x0269, 0x18ba: 0x01d9, 0x18bb: 0x0fa9,
+	0x18bc: 0x0fb9, 0x18bd: 0x1089, 0x18be: 0x0279, 0x18bf: 0x0369,
+	// Block 0x63, offset 0x18c0
+	0x18c0: 0x0289, 0x18c1: 0x13d1, 0x18c2: 0x0039, 0x18c3: 0x0ee9, 0x18c4: 0x1159, 0x18c5: 0x0ef9,
+	0x18c6: 0x0f09, 0x18c7: 0x1199, 0x18c8: 0x0f31, 0x18c9: 0x0249, 0x18ca: 0x0f41, 0x18cb: 0x0259,
+	0x18cc: 0x0f51, 0x18cd: 0x0359, 0x18ce: 0x0f61, 0x18cf: 0x0f71, 0x18d0: 0x00d9, 0x18d1: 0x0f99,
+	0x18d2: 0x2039, 0x18d3: 0x0269, 0x18d4: 0x01d9, 0x18d5: 0x0fa9, 0x18d6: 0x0fb9, 0x18d7: 0x1089,
+	0x18d8: 0x0279, 0x18d9: 0x0369, 0x18da: 0x0289, 0x18db: 0x13d1, 0x18dc: 0x0039, 0x18dd: 0x0040,
+	0x18de: 0x1159, 0x18df: 0x0ef9, 0x18e0: 0x0040, 0x18e1: 0x0040, 0x18e2: 0x0f31, 0x18e3: 0x0040,
+	0x18e4: 0x0040, 0x18e5: 0x0259, 0x18e6: 0x0f51, 0x18e7: 0x0040, 0x18e8: 0x0040, 0x18e9: 0x0f71,
+	0x18ea: 0x00d9, 0x18eb: 0x0f99, 0x18ec: 0x2039, 0x18ed: 0x0040, 0x18ee: 0x01d9, 0x18ef: 0x0fa9,
+	0x18f0: 0x0fb9, 0x18f1: 0x1089, 0x18f2: 0x0279, 0x18f3: 0x0369, 0x18f4: 0x0289, 0x18f5: 0x13d1,
+	0x18f6: 0x0039, 0x18f7: 0x0ee9, 0x18f8: 0x1159, 0x18f9: 0x0ef9, 0x18fa: 0x0040, 0x18fb: 0x1199,
+	0x18fc: 0x0040, 0x18fd: 0x0249, 0x18fe: 0x0f41, 0x18ff: 0x0259,
+	// Block 0x64, offset 0x1900
+	0x1900: 0x0f51, 0x1901: 0x0359, 0x1902: 0x0f61, 0x1903: 0x0f71, 0x1904: 0x0040, 0x1905: 0x0f99,
+	0x1906: 0x2039, 0x1907: 0x0269, 0x1908: 0x01d9, 0x1909: 0x0fa9, 0x190a: 0x0fb9, 0x190b: 0x1089,
+	0x190c: 0x0279, 0x190d: 0x0369, 0x190e: 0x0289, 0x190f: 0x13d1, 0x1910: 0x0039, 0x1911: 0x0ee9,
+	0x1912: 0x1159, 0x1913: 0x0ef9, 0x1914: 0x0f09, 0x1915: 0x1199, 0x1916: 0x0f31, 0x1917: 0x0249,
+	0x1918: 0x0f41, 0x1919: 0x0259, 0x191a: 0x0f51, 0x191b: 0x0359, 0x191c: 0x0f61, 0x191d: 0x0f71,
+	0x191e: 0x00d9, 0x191f: 0x0f99, 0x1920: 0x2039, 0x1921: 0x0269, 0x1922: 0x01d9, 0x1923: 0x0fa9,
+	0x1924: 0x0fb9, 0x1925: 0x1089, 0x1926: 0x0279, 0x1927: 0x0369, 0x1928: 0x0289, 0x1929: 0x13d1,
+	0x192a: 0x0039, 0x192b: 0x0ee9, 0x192c: 0x1159, 0x192d: 0x0ef9, 0x192e: 0x0f09, 0x192f: 0x1199,
+	0x1930: 0x0f31, 0x1931: 0x0249, 0x1932: 0x0f41, 0x1933: 0x0259, 0x1934: 0x0f51, 0x1935: 0x0359,
+	0x1936: 0x0f61, 0x1937: 0x0f71, 0x1938: 0x00d9, 0x1939: 0x0f99, 0x193a: 0x2039, 0x193b: 0x0269,
+	0x193c: 0x01d9, 0x193d: 0x0fa9, 0x193e: 0x0fb9, 0x193f: 0x1089,
+	// Block 0x65, offset 0x1940
+	0x1940: 0x0279, 0x1941: 0x0369, 0x1942: 0x0289, 0x1943: 0x13d1, 0x1944: 0x0039, 0x1945: 0x0ee9,
+	0x1946: 0x0040, 0x1947: 0x0ef9, 0x1948: 0x0f09, 0x1949: 0x1199, 0x194a: 0x0f31, 0x194b: 0x0040,
+	0x194c: 0x0040, 0x194d: 0x0259, 0x194e: 0x0f51, 0x194f: 0x0359, 0x1950: 0x0f61, 0x1951: 0x0f71,
+	0x1952: 0x00d9, 0x1953: 0x0f99, 0x1954: 0x2039, 0x1955: 0x0040, 0x1956: 0x01d9, 0x1957: 0x0fa9,
+	0x1958: 0x0fb9, 0x1959: 0x1089, 0x195a: 0x0279, 0x195b: 0x0369, 0x195c: 0x0289, 0x195d: 0x0040,
+	0x195e: 0x0039, 0x195f: 0x0ee9, 0x1960: 0x1159, 0x1961: 0x0ef9, 0x1962: 0x0f09, 0x1963: 0x1199,
+	0x1964: 0x0f31, 0x1965: 0x0249, 0x1966: 0x0f41, 0x1967: 0x0259, 0x1968: 0x0f51, 0x1969: 0x0359,
+	0x196a: 0x0f61, 0x196b: 0x0f71, 0x196c: 0x00d9, 0x196d: 0x0f99, 0x196e: 0x2039, 0x196f: 0x0269,
+	0x1970: 0x01d9, 0x1971: 0x0fa9, 0x1972: 0x0fb9, 0x1973: 0x1089, 0x1974: 0x0279, 0x1975: 0x0369,
+	0x1976: 0x0289, 0x1977: 0x13d1, 0x1978: 0x0039, 0x1979: 0x0ee9, 0x197a: 0x0040, 0x197b: 0x0ef9,
+	0x197c: 0x0f09, 0x197d: 0x1199, 0x197e: 0x0f31, 0x197f: 0x0040,
+	// Block 0x66, offset 0x1980
+	0x1980: 0x0f41, 0x1981: 0x0259, 0x1982: 0x0f51, 0x1983: 0x0359, 0x1984: 0x0f61, 0x1985: 0x0040,
+	0x1986: 0x00d9, 0x1987: 0x0040, 0x1988: 0x0040, 0x1989: 0x0040, 0x198a: 0x01d9, 0x198b: 0x0fa9,
+	0x198c: 0x0fb9, 0x198d: 0x1089, 0x198e: 0x0279, 0x198f: 0x0369, 0x1990: 0x0289, 0x1991: 0x0040,
+	0x1992: 0x0039, 0x1993: 0x0ee9, 0x1994: 0x1159, 0x1995: 0x0ef9, 0x1996: 0x0f09, 0x1997: 0x1199,
+	0x1998: 0x0f31, 0x1999: 0x0249, 0x199a: 0x0f41, 0x199b: 0x0259, 0x199c: 0x0f51, 0x199d: 0x0359,
+	0x199e: 0x0f61, 0x199f: 0x0f71, 0x19a0: 0x00d9, 0x19a1: 0x0f99, 0x19a2: 0x2039, 0x19a3: 0x0269,
+	0x19a4: 0x01d9, 0x19a5: 0x0fa9, 0x19a6: 0x0fb9, 0x19a7: 0x1089, 0x19a8: 0x0279, 0x19a9: 0x0369,
+	0x19aa: 0x0289, 0x19ab: 0x13d1, 0x19ac: 0x0039, 0x19ad: 0x0ee9, 0x19ae: 0x1159, 0x19af: 0x0ef9,
+	0x19b0: 0x0f09, 0x19b1: 0x1199, 0x19b2: 0x0f31, 0x19b3: 0x0249, 0x19b4: 0x0f41, 0x19b5: 0x0259,
+	0x19b6: 0x0f51, 0x19b7: 0x0359, 0x19b8: 0x0f61, 0x19b9: 0x0f71, 0x19ba: 0x00d9, 0x19bb: 0x0f99,
+	0x19bc: 0x2039, 0x19bd: 0x0269, 0x19be: 0x01d9, 0x19bf: 0x0fa9,
+	// Block 0x67, offset 0x19c0
+	0x19c0: 0x0fb9, 0x19c1: 0x1089, 0x19c2: 0x0279, 0x19c3: 0x0369, 0x19c4: 0x0289, 0x19c5: 0x13d1,
+	0x19c6: 0x0039, 0x19c7: 0x0ee9, 0x19c8: 0x1159, 0x19c9: 0x0ef9, 0x19ca: 0x0f09, 0x19cb: 0x1199,
+	0x19cc: 0x0f31, 0x19cd: 0x0249, 0x19ce: 0x0f41, 0x19cf: 0x0259, 0x19d0: 0x0f51, 0x19d1: 0x0359,
+	0x19d2: 0x0f61, 0x19d3: 0x0f71, 0x19d4: 0x00d9, 0x19d5: 0x0f99, 0x19d6: 0x2039, 0x19d7: 0x0269,
+	0x19d8: 0x01d9, 0x19d9: 0x0fa9, 0x19da: 0x0fb9, 0x19db: 0x1089, 0x19dc: 0x0279, 0x19dd: 0x0369,
+	0x19de: 0x0289, 0x19df: 0x13d1, 0x19e0: 0x0039, 0x19e1: 0x0ee9, 0x19e2: 0x1159, 0x19e3: 0x0ef9,
+	0x19e4: 0x0f09, 0x19e5: 0x1199, 0x19e6: 0x0f31, 0x19e7: 0x0249, 0x19e8: 0x0f41, 0x19e9: 0x0259,
+	0x19ea: 0x0f51, 0x19eb: 0x0359, 0x19ec: 0x0f61, 0x19ed: 0x0f71, 0x19ee: 0x00d9, 0x19ef: 0x0f99,
+	0x19f0: 0x2039, 0x19f1: 0x0269, 0x19f2: 0x01d9, 0x19f3: 0x0fa9, 0x19f4: 0x0fb9, 0x19f5: 0x1089,
+	0x19f6: 0x0279, 0x19f7: 0x0369, 0x19f8: 0x0289, 0x19f9: 0x13d1, 0x19fa: 0x0039, 0x19fb: 0x0ee9,
+	0x19fc: 0x1159, 0x19fd: 0x0ef9, 0x19fe: 0x0f09, 0x19ff: 0x1199,
+	// Block 0x68, offset 0x1a00
+	0x1a00: 0x0f31, 0x1a01: 0x0249, 0x1a02: 0x0f41, 0x1a03: 0x0259, 0x1a04: 0x0f51, 0x1a05: 0x0359,
+	0x1a06: 0x0f61, 0x1a07: 0x0f71, 0x1a08: 0x00d9, 0x1a09: 0x0f99, 0x1a0a: 0x2039, 0x1a0b: 0x0269,
+	0x1a0c: 0x01d9, 0x1a0d: 0x0fa9, 0x1a0e: 0x0fb9, 0x1a0f: 0x1089, 0x1a10: 0x0279, 0x1a11: 0x0369,
+	0x1a12: 0x0289, 0x1a13: 0x13d1, 0x1a14: 0x0039, 0x1a15: 0x0ee9, 0x1a16: 0x1159, 0x1a17: 0x0ef9,
+	0x1a18: 0x0f09, 0x1a19: 0x1199, 0x1a1a: 0x0f31, 0x1a1b: 0x0249, 0x1a1c: 0x0f41, 0x1a1d: 0x0259,
+	0x1a1e: 0x0f51, 0x1a1f: 0x0359, 0x1a20: 0x0f61, 0x1a21: 0x0f71, 0x1a22: 0x00d9, 0x1a23: 0x0f99,
+	0x1a24: 0x2039, 0x1a25: 0x0269, 0x1a26: 0x01d9, 0x1a27: 0x0fa9, 0x1a28: 0x0fb9, 0x1a29: 0x1089,
+	0x1a2a: 0x0279, 0x1a2b: 0x0369, 0x1a2c: 0x0289, 0x1a2d: 0x13d1, 0x1a2e: 0x0039, 0x1a2f: 0x0ee9,
+	0x1a30: 0x1159, 0x1a31: 0x0ef9, 0x1a32: 0x0f09, 0x1a33: 0x1199, 0x1a34: 0x0f31, 0x1a35: 0x0249,
+	0x1a36: 0x0f41, 0x1a37: 0x0259, 0x1a38: 0x0f51, 0x1a39: 0x0359, 0x1a3a: 0x0f61, 0x1a3b: 0x0f71,
+	0x1a3c: 0x00d9, 0x1a3d: 0x0f99, 0x1a3e: 0x2039, 0x1a3f: 0x0269,
+	// Block 0x69, offset 0x1a40
+	0x1a40: 0x01d9, 0x1a41: 0x0fa9, 0x1a42: 0x0fb9, 0x1a43: 0x1089, 0x1a44: 0x0279, 0x1a45: 0x0369,
+	0x1a46: 0x0289, 0x1a47: 0x13d1, 0x1a48: 0x0039, 0x1a49: 0x0ee9, 0x1a4a: 0x1159, 0x1a4b: 0x0ef9,
+	0x1a4c: 0x0f09, 0x1a4d: 0x1199, 0x1a4e: 0x0f31, 0x1a4f: 0x0249, 0x1a50: 0x0f41, 0x1a51: 0x0259,
+	0x1a52: 0x0f51, 0x1a53: 0x0359, 0x1a54: 0x0f61, 0x1a55: 0x0f71, 0x1a56: 0x00d9, 0x1a57: 0x0f99,
+	0x1a58: 0x2039, 0x1a59: 0x0269, 0x1a5a: 0x01d9, 0x1a5b: 0x0fa9, 0x1a5c: 0x0fb9, 0x1a5d: 0x1089,
+	0x1a5e: 0x0279, 0x1a5f: 0x0369, 0x1a60: 0x0289, 0x1a61: 0x13d1, 0x1a62: 0x0039, 0x1a63: 0x0ee9,
+	0x1a64: 0x1159, 0x1a65: 0x0ef9, 0x1a66: 0x0f09, 0x1a67: 0x1199, 0x1a68: 0x0f31, 0x1a69: 0x0249,
+	0x1a6a: 0x0f41, 0x1a6b: 0x0259, 0x1a6c: 0x0f51, 0x1a6d: 0x0359, 0x1a6e: 0x0f61, 0x1a6f: 0x0f71,
+	0x1a70: 0x00d9, 0x1a71: 0x0f99, 0x1a72: 0x2039, 0x1a73: 0x0269, 0x1a74: 0x01d9, 0x1a75: 0x0fa9,
+	0x1a76: 0x0fb9, 0x1a77: 0x1089, 0x1a78: 0x0279, 0x1a79: 0x0369, 0x1a7a: 0x0289, 0x1a7b: 0x13d1,
+	0x1a7c: 0x0039, 0x1a7d: 0x0ee9, 0x1a7e: 0x1159, 0x1a7f: 0x0ef9,
+	// Block 0x6a, offset 0x1a80
+	0x1a80: 0x0f09, 0x1a81: 0x1199, 0x1a82: 0x0f31, 0x1a83: 0x0249, 0x1a84: 0x0f41, 0x1a85: 0x0259,
+	0x1a86: 0x0f51, 0x1a87: 0x0359, 0x1a88: 0x0f61, 0x1a89: 0x0f71, 0x1a8a: 0x00d9, 0x1a8b: 0x0f99,
+	0x1a8c: 0x2039, 0x1a8d: 0x0269, 0x1a8e: 0x01d9, 0x1a8f: 0x0fa9, 0x1a90: 0x0fb9, 0x1a91: 0x1089,
+	0x1a92: 0x0279, 0x1a93: 0x0369, 0x1a94: 0x0289, 0x1a95: 0x13d1, 0x1a96: 0x0039, 0x1a97: 0x0ee9,
+	0x1a98: 0x1159, 0x1a99: 0x0ef9, 0x1a9a: 0x0f09, 0x1a9b: 0x1199, 0x1a9c: 0x0f31, 0x1a9d: 0x0249,
+	0x1a9e: 0x0f41, 0x1a9f: 0x0259, 0x1aa0: 0x0f51, 0x1aa1: 0x0359, 0x1aa2: 0x0f61, 0x1aa3: 0x0f71,
+	0x1aa4: 0x00d9, 0x1aa5: 0x0f99, 0x1aa6: 0x2039, 0x1aa7: 0x0269, 0x1aa8: 0x01d9, 0x1aa9: 0x0fa9,
+	0x1aaa: 0x0fb9, 0x1aab: 0x1089, 0x1aac: 0x0279, 0x1aad: 0x0369, 0x1aae: 0x0289, 0x1aaf: 0x13d1,
+	0x1ab0: 0x0039, 0x1ab1: 0x0ee9, 0x1ab2: 0x1159, 0x1ab3: 0x0ef9, 0x1ab4: 0x0f09, 0x1ab5: 0x1199,
+	0x1ab6: 0x0f31, 0x1ab7: 0x0249, 0x1ab8: 0x0f41, 0x1ab9: 0x0259, 0x1aba: 0x0f51, 0x1abb: 0x0359,
+	0x1abc: 0x0f61, 0x1abd: 0x0f71, 0x1abe: 0x00d9, 0x1abf: 0x0f99,
+	// Block 0x6b, offset 0x1ac0
+	0x1ac0: 0x2039, 0x1ac1: 0x0269, 0x1ac2: 0x01d9, 0x1ac3: 0x0fa9, 0x1ac4: 0x0fb9, 0x1ac5: 0x1089,
+	0x1ac6: 0x0279, 0x1ac7: 0x0369, 0x1ac8: 0x0289, 0x1ac9: 0x13d1, 0x1aca: 0x0039, 0x1acb: 0x0ee9,
+	0x1acc: 0x1159, 0x1acd: 0x0ef9, 0x1ace: 0x0f09, 0x1acf: 0x1199, 0x1ad0: 0x0f31, 0x1ad1: 0x0249,
+	0x1ad2: 0x0f41, 0x1ad3: 0x0259, 0x1ad4: 0x0f51, 0x1ad5: 0x0359, 0x1ad6: 0x0f61, 0x1ad7: 0x0f71,
+	0x1ad8: 0x00d9, 0x1ad9: 0x0f99, 0x1ada: 0x2039, 0x1adb: 0x0269, 0x1adc: 0x01d9, 0x1add: 0x0fa9,
+	0x1ade: 0x0fb9, 0x1adf: 0x1089, 0x1ae0: 0x0279, 0x1ae1: 0x0369, 0x1ae2: 0x0289, 0x1ae3: 0x13d1,
+	0x1ae4: 0xba81, 0x1ae5: 0xba99, 0x1ae6: 0x0040, 0x1ae7: 0x0040, 0x1ae8: 0xbab1, 0x1ae9: 0x1099,
+	0x1aea: 0x10b1, 0x1aeb: 0x10c9, 0x1aec: 0xbac9, 0x1aed: 0xbae1, 0x1aee: 0xbaf9, 0x1aef: 0x1429,
+	0x1af0: 0x1a31, 0x1af1: 0xbb11, 0x1af2: 0xbb29, 0x1af3: 0xbb41, 0x1af4: 0xbb59, 0x1af5: 0xbb71,
+	0x1af6: 0xbb89, 0x1af7: 0x2109, 0x1af8: 0x1111, 0x1af9: 0x1429, 0x1afa: 0xbba1, 0x1afb: 0xbbb9,
+	0x1afc: 0xbbd1, 0x1afd: 0x10e1, 0x1afe: 0x10f9, 0x1aff: 0xbbe9,
+	// Block 0x6c, offset 0x1b00
+	0x1b00: 0x2079, 0x1b01: 0xbc01, 0x1b02: 0xbab1, 0x1b03: 0x1099, 0x1b04: 0x10b1, 0x1b05: 0x10c9,
+	0x1b06: 0xbac9, 0x1b07: 0xbae1, 0x1b08: 0xbaf9, 0x1b09: 0x1429, 0x1b0a: 0x1a31, 0x1b0b: 0xbb11,
+	0x1b0c: 0xbb29, 0x1b0d: 0xbb41, 0x1b0e: 0xbb59, 0x1b0f: 0xbb71, 0x1b10: 0xbb89, 0x1b11: 0x2109,
+	0x1b12: 0x1111, 0x1b13: 0xbba1, 0x1b14: 0xbba1, 0x1b15: 0xbbb9, 0x1b16: 0xbbd1, 0x1b17: 0x10e1,
+	0x1b18: 0x10f9, 0x1b19: 0xbbe9, 0x1b1a: 0x2079, 0x1b1b: 0xbc21, 0x1b1c: 0xbac9, 0x1b1d: 0x1429,
+	0x1b1e: 0xbb11, 0x1b1f: 0x10e1, 0x1b20: 0x1111, 0x1b21: 0x2109, 0x1b22: 0xbab1, 0x1b23: 0x1099,
+	0x1b24: 0x10b1, 0x1b25: 0x10c9, 0x1b26: 0xbac9, 0x1b27: 0xbae1, 0x1b28: 0xbaf9, 0x1b29: 0x1429,
+	0x1b2a: 0x1a31, 0x1b2b: 0xbb11, 0x1b2c: 0xbb29, 0x1b2d: 0xbb41, 0x1b2e: 0xbb59, 0x1b2f: 0xbb71,
+	0x1b30: 0xbb89, 0x1b31: 0x2109, 0x1b32: 0x1111, 0x1b33: 0x1429, 0x1b34: 0xbba1, 0x1b35: 0xbbb9,
+	0x1b36: 0xbbd1, 0x1b37: 0x10e1, 0x1b38: 0x10f9, 0x1b39: 0xbbe9, 0x1b3a: 0x2079, 0x1b3b: 0xbc01,
+	0x1b3c: 0xbab1, 0x1b3d: 0x1099, 0x1b3e: 0x10b1, 0x1b3f: 0x10c9,
+	// Block 0x6d, offset 0x1b40
+	0x1b40: 0xbac9, 0x1b41: 0xbae1, 0x1b42: 0xbaf9, 0x1b43: 0x1429, 0x1b44: 0x1a31, 0x1b45: 0xbb11,
+	0x1b46: 0xbb29, 0x1b47: 0xbb41, 0x1b48: 0xbb59, 0x1b49: 0xbb71, 0x1b4a: 0xbb89, 0x1b4b: 0x2109,
+	0x1b4c: 0x1111, 0x1b4d: 0xbba1, 0x1b4e: 0xbba1, 0x1b4f: 0xbbb9, 0x1b50: 0xbbd1, 0x1b51: 0x10e1,
+	0x1b52: 0x10f9, 0x1b53: 0xbbe9, 0x1b54: 0x2079, 0x1b55: 0xbc21, 0x1b56: 0xbac9, 0x1b57: 0x1429,
+	0x1b58: 0xbb11, 0x1b59: 0x10e1, 0x1b5a: 0x1111, 0x1b5b: 0x2109, 0x1b5c: 0xbab1, 0x1b5d: 0x1099,
+	0x1b5e: 0x10b1, 0x1b5f: 0x10c9, 0x1b60: 0xbac9, 0x1b61: 0xbae1, 0x1b62: 0xbaf9, 0x1b63: 0x1429,
+	0x1b64: 0x1a31, 0x1b65: 0xbb11, 0x1b66: 0xbb29, 0x1b67: 0xbb41, 0x1b68: 0xbb59, 0x1b69: 0xbb71,
+	0x1b6a: 0xbb89, 0x1b6b: 0x2109, 0x1b6c: 0x1111, 0x1b6d: 0x1429, 0x1b6e: 0xbba1, 0x1b6f: 0xbbb9,
+	0x1b70: 0xbbd1, 0x1b71: 0x10e1, 0x1b72: 0x10f9, 0x1b73: 0xbbe9, 0x1b74: 0x2079, 0x1b75: 0xbc01,
+	0x1b76: 0xbab1, 0x1b77: 0x1099, 0x1b78: 0x10b1, 0x1b79: 0x10c9, 0x1b7a: 0xbac9, 0x1b7b: 0xbae1,
+	0x1b7c: 0xbaf9, 0x1b7d: 0x1429, 0x1b7e: 0x1a31, 0x1b7f: 0xbb11,
+	// Block 0x6e, offset 0x1b80
+	0x1b80: 0xbb29, 0x1b81: 0xbb41, 0x1b82: 0xbb59, 0x1b83: 0xbb71, 0x1b84: 0xbb89, 0x1b85: 0x2109,
+	0x1b86: 0x1111, 0x1b87: 0xbba1, 0x1b88: 0xbba1, 0x1b89: 0xbbb9, 0x1b8a: 0xbbd1, 0x1b8b: 0x10e1,
+	0x1b8c: 0x10f9, 0x1b8d: 0xbbe9, 0x1b8e: 0x2079, 0x1b8f: 0xbc21, 0x1b90: 0xbac9, 0x1b91: 0x1429,
+	0x1b92: 0xbb11, 0x1b93: 0x10e1, 0x1b94: 0x1111, 0x1b95: 0x2109, 0x1b96: 0xbab1, 0x1b97: 0x1099,
+	0x1b98: 0x10b1, 0x1b99: 0x10c9, 0x1b9a: 0xbac9, 0x1b9b: 0xbae1, 0x1b9c: 0xbaf9, 0x1b9d: 0x1429,
+	0x1b9e: 0x1a31, 0x1b9f: 0xbb11, 0x1ba0: 0xbb29, 0x1ba1: 0xbb41, 0x1ba2: 0xbb59, 0x1ba3: 0xbb71,
+	0x1ba4: 0xbb89, 0x1ba5: 0x2109, 0x1ba6: 0x1111, 0x1ba7: 0x1429, 0x1ba8: 0xbba1, 0x1ba9: 0xbbb9,
+	0x1baa: 0xbbd1, 0x1bab: 0x10e1, 0x1bac: 0x10f9, 0x1bad: 0xbbe9, 0x1bae: 0x2079, 0x1baf: 0xbc01,
+	0x1bb0: 0xbab1, 0x1bb1: 0x1099, 0x1bb2: 0x10b1, 0x1bb3: 0x10c9, 0x1bb4: 0xbac9, 0x1bb5: 0xbae1,
+	0x1bb6: 0xbaf9, 0x1bb7: 0x1429, 0x1bb8: 0x1a31, 0x1bb9: 0xbb11, 0x1bba: 0xbb29, 0x1bbb: 0xbb41,
+	0x1bbc: 0xbb59, 0x1bbd: 0xbb71, 0x1bbe: 0xbb89, 0x1bbf: 0x2109,
+	// Block 0x6f, offset 0x1bc0
+	0x1bc0: 0x1111, 0x1bc1: 0xbba1, 0x1bc2: 0xbba1, 0x1bc3: 0xbbb9, 0x1bc4: 0xbbd1, 0x1bc5: 0x10e1,
+	0x1bc6: 0x10f9, 0x1bc7: 0xbbe9, 0x1bc8: 0x2079, 0x1bc9: 0xbc21, 0x1bca: 0xbac9, 0x1bcb: 0x1429,
+	0x1bcc: 0xbb11, 0x1bcd: 0x10e1, 0x1bce: 0x1111, 0x1bcf: 0x2109, 0x1bd0: 0xbab1, 0x1bd1: 0x1099,
+	0x1bd2: 0x10b1, 0x1bd3: 0x10c9, 0x1bd4: 0xbac9, 0x1bd5: 0xbae1, 0x1bd6: 0xbaf9, 0x1bd7: 0x1429,
+	0x1bd8: 0x1a31, 0x1bd9: 0xbb11, 0x1bda: 0xbb29, 0x1bdb: 0xbb41, 0x1bdc: 0xbb59, 0x1bdd: 0xbb71,
+	0x1bde: 0xbb89, 0x1bdf: 0x2109, 0x1be0: 0x1111, 0x1be1: 0x1429, 0x1be2: 0xbba1, 0x1be3: 0xbbb9,
+	0x1be4: 0xbbd1, 0x1be5: 0x10e1, 0x1be6: 0x10f9, 0x1be7: 0xbbe9, 0x1be8: 0x2079, 0x1be9: 0xbc01,
+	0x1bea: 0xbab1, 0x1beb: 0x1099, 0x1bec: 0x10b1, 0x1bed: 0x10c9, 0x1bee: 0xbac9, 0x1bef: 0xbae1,
+	0x1bf0: 0xbaf9, 0x1bf1: 0x1429, 0x1bf2: 0x1a31, 0x1bf3: 0xbb11, 0x1bf4: 0xbb29, 0x1bf5: 0xbb41,
+	0x1bf6: 0xbb59, 0x1bf7: 0xbb71, 0x1bf8: 0xbb89, 0x1bf9: 0x2109, 0x1bfa: 0x1111, 0x1bfb: 0xbba1,
+	0x1bfc: 0xbba1, 0x1bfd: 0xbbb9, 0x1bfe: 0xbbd1, 0x1bff: 0x10e1,
+	// Block 0x70, offset 0x1c00
+	0x1c00: 0x10f9, 0x1c01: 0xbbe9, 0x1c02: 0x2079, 0x1c03: 0xbc21, 0x1c04: 0xbac9, 0x1c05: 0x1429,
+	0x1c06: 0xbb11, 0x1c07: 0x10e1, 0x1c08: 0x1111, 0x1c09: 0x2109, 0x1c0a: 0xbc41, 0x1c0b: 0xbc41,
+	0x1c0c: 0x0040, 0x1c0d: 0x0040, 0x1c0e: 0x1f41, 0x1c0f: 0x00c9, 0x1c10: 0x0069, 0x1c11: 0x0079,
+	0x1c12: 0x1f51, 0x1c13: 0x1f61, 0x1c14: 0x1f71, 0x1c15: 0x1f81, 0x1c16: 0x1f91, 0x1c17: 0x1fa1,
+	0x1c18: 0x1f41, 0x1c19: 0x00c9, 0x1c1a: 0x0069, 0x1c1b: 0x0079, 0x1c1c: 0x1f51, 0x1c1d: 0x1f61,
+	0x1c1e: 0x1f71, 0x1c1f: 0x1f81, 0x1c20: 0x1f91, 0x1c21: 0x1fa1, 0x1c22: 0x1f41, 0x1c23: 0x00c9,
+	0x1c24: 0x0069, 0x1c25: 0x0079, 0x1c26: 0x1f51, 0x1c27: 0x1f61, 0x1c28: 0x1f71, 0x1c29: 0x1f81,
+	0x1c2a: 0x1f91, 0x1c2b: 0x1fa1, 0x1c2c: 0x1f41, 0x1c2d: 0x00c9, 0x1c2e: 0x0069, 0x1c2f: 0x0079,
+	0x1c30: 0x1f51, 0x1c31: 0x1f61, 0x1c32: 0x1f71, 0x1c33: 0x1f81, 0x1c34: 0x1f91, 0x1c35: 0x1fa1,
+	0x1c36: 0x1f41, 0x1c37: 0x00c9, 0x1c38: 0x0069, 0x1c39: 0x0079, 0x1c3a: 0x1f51, 0x1c3b: 0x1f61,
+	0x1c3c: 0x1f71, 0x1c3d: 0x1f81, 0x1c3e: 0x1f91, 0x1c3f: 0x1fa1,
+	// Block 0x71, offset 0x1c40
+	0x1c40: 0xe115, 0x1c41: 0xe115, 0x1c42: 0xe135, 0x1c43: 0xe135, 0x1c44: 0xe115, 0x1c45: 0xe115,
+	0x1c46: 0xe175, 0x1c47: 0xe175, 0x1c48: 0xe115, 0x1c49: 0xe115, 0x1c4a: 0xe135, 0x1c4b: 0xe135,
+	0x1c4c: 0xe115, 0x1c4d: 0xe115, 0x1c4e: 0xe1f5, 0x1c4f: 0xe1f5, 0x1c50: 0xe115, 0x1c51: 0xe115,
+	0x1c52: 0xe135, 0x1c53: 0xe135, 0x1c54: 0xe115, 0x1c55: 0xe115, 0x1c56: 0xe175, 0x1c57: 0xe175,
+	0x1c58: 0xe115, 0x1c59: 0xe115, 0x1c5a: 0xe135, 0x1c5b: 0xe135, 0x1c5c: 0xe115, 0x1c5d: 0xe115,
+	0x1c5e: 0x8b3d, 0x1c5f: 0x8b3d, 0x1c60: 0x04b5, 0x1c61: 0x04b5, 0x1c62: 0x0a08, 0x1c63: 0x0a08,
+	0x1c64: 0x0a08, 0x1c65: 0x0a08, 0x1c66: 0x0a08, 0x1c67: 0x0a08, 0x1c68: 0x0a08, 0x1c69: 0x0a08,
+	0x1c6a: 0x0a08, 0x1c6b: 0x0a08, 0x1c6c: 0x0a08, 0x1c6d: 0x0a08, 0x1c6e: 0x0a08, 0x1c6f: 0x0a08,
+	0x1c70: 0x0a08, 0x1c71: 0x0a08, 0x1c72: 0x0a08, 0x1c73: 0x0a08, 0x1c74: 0x0a08, 0x1c75: 0x0a08,
+	0x1c76: 0x0a08, 0x1c77: 0x0a08, 0x1c78: 0x0a08, 0x1c79: 0x0a08, 0x1c7a: 0x0a08, 0x1c7b: 0x0a08,
+	0x1c7c: 0x0a08, 0x1c7d: 0x0a08, 0x1c7e: 0x0a08, 0x1c7f: 0x0a08,
+	// Block 0x72, offset 0x1c80
+	0x1c80: 0xb189, 0x1c81: 0xb1a1, 0x1c82: 0xb201, 0x1c83: 0xb249, 0x1c84: 0x0040, 0x1c85: 0xb411,
+	0x1c86: 0xb291, 0x1c87: 0xb219, 0x1c88: 0xb309, 0x1c89: 0xb429, 0x1c8a: 0xb399, 0x1c8b: 0xb3b1,
+	0x1c8c: 0xb3c9, 0x1c8d: 0xb3e1, 0x1c8e: 0xb2a9, 0x1c8f: 0xb339, 0x1c90: 0xb369, 0x1c91: 0xb2d9,
+	0x1c92: 0xb381, 0x1c93: 0xb279, 0x1c94: 0xb2c1, 0x1c95: 0xb1d1, 0x1c96: 0xb1e9, 0x1c97: 0xb231,
+	0x1c98: 0xb261, 0x1c99: 0xb2f1, 0x1c9a: 0xb321, 0x1c9b: 0xb351, 0x1c9c: 0xbc59, 0x1c9d: 0x7949,
+	0x1c9e: 0xbc71, 0x1c9f: 0xbc89, 0x1ca0: 0x0040, 0x1ca1: 0xb1a1, 0x1ca2: 0xb201, 0x1ca3: 0x0040,
+	0x1ca4: 0xb3f9, 0x1ca5: 0x0040, 0x1ca6: 0x0040, 0x1ca7: 0xb219, 0x1ca8: 0x0040, 0x1ca9: 0xb429,
+	0x1caa: 0xb399, 0x1cab: 0xb3b1, 0x1cac: 0xb3c9, 0x1cad: 0xb3e1, 0x1cae: 0xb2a9, 0x1caf: 0xb339,
+	0x1cb0: 0xb369, 0x1cb1: 0xb2d9, 0x1cb2: 0xb381, 0x1cb3: 0x0040, 0x1cb4: 0xb2c1, 0x1cb5: 0xb1d1,
+	0x1cb6: 0xb1e9, 0x1cb7: 0xb231, 0x1cb8: 0x0040, 0x1cb9: 0xb2f1, 0x1cba: 0x0040, 0x1cbb: 0xb351,
+	0x1cbc: 0x0040, 0x1cbd: 0x0040, 0x1cbe: 0x0040, 0x1cbf: 0x0040,
+	// Block 0x73, offset 0x1cc0
+	0x1cc0: 0x0040, 0x1cc1: 0x0040, 0x1cc2: 0xb201, 0x1cc3: 0x0040, 0x1cc4: 0x0040, 0x1cc5: 0x0040,
+	0x1cc6: 0x0040, 0x1cc7: 0xb219, 0x1cc8: 0x0040, 0x1cc9: 0xb429, 0x1cca: 0x0040, 0x1ccb: 0xb3b1,
+	0x1ccc: 0x0040, 0x1ccd: 0xb3e1, 0x1cce: 0xb2a9, 0x1ccf: 0xb339, 0x1cd0: 0x0040, 0x1cd1: 0xb2d9,
+	0x1cd2: 0xb381, 0x1cd3: 0x0040, 0x1cd4: 0xb2c1, 0x1cd5: 0x0040, 0x1cd6: 0x0040, 0x1cd7: 0xb231,
+	0x1cd8: 0x0040, 0x1cd9: 0xb2f1, 0x1cda: 0x0040, 0x1cdb: 0xb351, 0x1cdc: 0x0040, 0x1cdd: 0x7949,
+	0x1cde: 0x0040, 0x1cdf: 0xbc89, 0x1ce0: 0x0040, 0x1ce1: 0xb1a1, 0x1ce2: 0xb201, 0x1ce3: 0x0040,
+	0x1ce4: 0xb3f9, 0x1ce5: 0x0040, 0x1ce6: 0x0040, 0x1ce7: 0xb219, 0x1ce8: 0xb309, 0x1ce9: 0xb429,
+	0x1cea: 0xb399, 0x1ceb: 0x0040, 0x1cec: 0xb3c9, 0x1ced: 0xb3e1, 0x1cee: 0xb2a9, 0x1cef: 0xb339,
+	0x1cf0: 0xb369, 0x1cf1: 0xb2d9, 0x1cf2: 0xb381, 0x1cf3: 0x0040, 0x1cf4: 0xb2c1, 0x1cf5: 0xb1d1,
+	0x1cf6: 0xb1e9, 0x1cf7: 0xb231, 0x1cf8: 0x0040, 0x1cf9: 0xb2f1, 0x1cfa: 0xb321, 0x1cfb: 0xb351,
+	0x1cfc: 0xbc59, 0x1cfd: 0x0040, 0x1cfe: 0xbc71, 0x1cff: 0x0040,
+	// Block 0x74, offset 0x1d00
+	0x1d00: 0xb189, 0x1d01: 0xb1a1, 0x1d02: 0xb201, 0x1d03: 0xb249, 0x1d04: 0xb3f9, 0x1d05: 0xb411,
+	0x1d06: 0xb291, 0x1d07: 0xb219, 0x1d08: 0xb309, 0x1d09: 0xb429, 0x1d0a: 0x0040, 0x1d0b: 0xb3b1,
+	0x1d0c: 0xb3c9, 0x1d0d: 0xb3e1, 0x1d0e: 0xb2a9, 0x1d0f: 0xb339, 0x1d10: 0xb369, 0x1d11: 0xb2d9,
+	0x1d12: 0xb381, 0x1d13: 0xb279, 0x1d14: 0xb2c1, 0x1d15: 0xb1d1, 0x1d16: 0xb1e9, 0x1d17: 0xb231,
+	0x1d18: 0xb261, 0x1d19: 0xb2f1, 0x1d1a: 0xb321, 0x1d1b: 0xb351, 0x1d1c: 0x0040, 0x1d1d: 0x0040,
+	0x1d1e: 0x0040, 0x1d1f: 0x0040, 0x1d20: 0x0040, 0x1d21: 0xb1a1, 0x1d22: 0xb201, 0x1d23: 0xb249,
+	0x1d24: 0x0040, 0x1d25: 0xb411, 0x1d26: 0xb291, 0x1d27: 0xb219, 0x1d28: 0xb309, 0x1d29: 0xb429,
+	0x1d2a: 0x0040, 0x1d2b: 0xb3b1, 0x1d2c: 0xb3c9, 0x1d2d: 0xb3e1, 0x1d2e: 0xb2a9, 0x1d2f: 0xb339,
+	0x1d30: 0xb369, 0x1d31: 0xb2d9, 0x1d32: 0xb381, 0x1d33: 0xb279, 0x1d34: 0xb2c1, 0x1d35: 0xb1d1,
+	0x1d36: 0xb1e9, 0x1d37: 0xb231, 0x1d38: 0xb261, 0x1d39: 0xb2f1, 0x1d3a: 0xb321, 0x1d3b: 0xb351,
+	0x1d3c: 0x0040, 0x1d3d: 0x0040, 0x1d3e: 0x0040, 0x1d3f: 0x0040,
+	// Block 0x75, offset 0x1d40
+	0x1d40: 0x0040, 0x1d41: 0xbca2, 0x1d42: 0xbcba, 0x1d43: 0xbcd2, 0x1d44: 0xbcea, 0x1d45: 0xbd02,
+	0x1d46: 0xbd1a, 0x1d47: 0xbd32, 0x1d48: 0xbd4a, 0x1d49: 0xbd62, 0x1d4a: 0xbd7a, 0x1d4b: 0x0018,
+	0x1d4c: 0x0018, 0x1d4d: 0x0040, 0x1d4e: 0x0040, 0x1d4f: 0x0040, 0x1d50: 0xbd92, 0x1d51: 0xbdb2,
+	0x1d52: 0xbdd2, 0x1d53: 0xbdf2, 0x1d54: 0xbe12, 0x1d55: 0xbe32, 0x1d56: 0xbe52, 0x1d57: 0xbe72,
+	0x1d58: 0xbe92, 0x1d59: 0xbeb2, 0x1d5a: 0xbed2, 0x1d5b: 0xbef2, 0x1d5c: 0xbf12, 0x1d5d: 0xbf32,
+	0x1d5e: 0xbf52, 0x1d5f: 0xbf72, 0x1d60: 0xbf92, 0x1d61: 0xbfb2, 0x1d62: 0xbfd2, 0x1d63: 0xbff2,
+	0x1d64: 0xc012, 0x1d65: 0xc032, 0x1d66: 0xc052, 0x1d67: 0xc072, 0x1d68: 0xc092, 0x1d69: 0xc0b2,
+	0x1d6a: 0xc0d1, 0x1d6b: 0x1159, 0x1d6c: 0x0269, 0x1d6d: 0x6671, 0x1d6e: 0xc111, 0x1d6f: 0x0018,
+	0x1d70: 0x0039, 0x1d71: 0x0ee9, 0x1d72: 0x1159, 0x1d73: 0x0ef9, 0x1d74: 0x0f09, 0x1d75: 0x1199,
+	0x1d76: 0x0f31, 0x1d77: 0x0249, 0x1d78: 0x0f41, 0x1d79: 0x0259, 0x1d7a: 0x0f51, 0x1d7b: 0x0359,
+	0x1d7c: 0x0f61, 0x1d7d: 0x0f71, 0x1d7e: 0x00d9, 0x1d7f: 0x0f99,
+	// Block 0x76, offset 0x1d80
+	0x1d80: 0x2039, 0x1d81: 0x0269, 0x1d82: 0x01d9, 0x1d83: 0x0fa9, 0x1d84: 0x0fb9, 0x1d85: 0x1089,
+	0x1d86: 0x0279, 0x1d87: 0x0369, 0x1d88: 0x0289, 0x1d89: 0x13d1, 0x1d8a: 0xc129, 0x1d8b: 0x65b1,
+	0x1d8c: 0xc141, 0x1d8d: 0x1441, 0x1d8e: 0xc159, 0x1d8f: 0xc179, 0x1d90: 0x0018, 0x1d91: 0x0018,
+	0x1d92: 0x0018, 0x1d93: 0x0018, 0x1d94: 0x0018, 0x1d95: 0x0018, 0x1d96: 0x0018, 0x1d97: 0x0018,
+	0x1d98: 0x0018, 0x1d99: 0x0018, 0x1d9a: 0x0018, 0x1d9b: 0x0018, 0x1d9c: 0x0018, 0x1d9d: 0x0018,
+	0x1d9e: 0x0018, 0x1d9f: 0x0018, 0x1da0: 0x0018, 0x1da1: 0x0018, 0x1da2: 0x0018, 0x1da3: 0x0018,
+	0x1da4: 0x0018, 0x1da5: 0x0018, 0x1da6: 0x0018, 0x1da7: 0x0018, 0x1da8: 0x0018, 0x1da9: 0x0018,
+	0x1daa: 0xc191, 0x1dab: 0xc1a9, 0x1dac: 0xc1c1, 0x1dad: 0x0040, 0x1dae: 0x0040, 0x1daf: 0x0040,
+	0x1db0: 0x0018, 0x1db1: 0x0018, 0x1db2: 0x0018, 0x1db3: 0x0018, 0x1db4: 0x0018, 0x1db5: 0x0018,
+	0x1db6: 0x0018, 0x1db7: 0x0018, 0x1db8: 0x0018, 0x1db9: 0x0018, 0x1dba: 0x0018, 0x1dbb: 0x0018,
+	0x1dbc: 0x0018, 0x1dbd: 0x0018, 0x1dbe: 0x0018, 0x1dbf: 0x0018,
+	// Block 0x77, offset 0x1dc0
+	0x1dc0: 0xc1f1, 0x1dc1: 0xc229, 0x1dc2: 0xc261, 0x1dc3: 0x0040, 0x1dc4: 0x0040, 0x1dc5: 0x0040,
+	0x1dc6: 0x0040, 0x1dc7: 0x0040, 0x1dc8: 0x0040, 0x1dc9: 0x0040, 0x1dca: 0x0040, 0x1dcb: 0x0040,
+	0x1dcc: 0x0040, 0x1dcd: 0x0040, 0x1dce: 0x0040, 0x1dcf: 0x0040, 0x1dd0: 0xc281, 0x1dd1: 0xc2a1,
+	0x1dd2: 0xc2c1, 0x1dd3: 0xc2e1, 0x1dd4: 0xc301, 0x1dd5: 0xc321, 0x1dd6: 0xc341, 0x1dd7: 0xc361,
+	0x1dd8: 0xc381, 0x1dd9: 0xc3a1, 0x1dda: 0xc3c1, 0x1ddb: 0xc3e1, 0x1ddc: 0xc401, 0x1ddd: 0xc421,
+	0x1dde: 0xc441, 0x1ddf: 0xc461, 0x1de0: 0xc481, 0x1de1: 0xc4a1, 0x1de2: 0xc4c1, 0x1de3: 0xc4e1,
+	0x1de4: 0xc501, 0x1de5: 0xc521, 0x1de6: 0xc541, 0x1de7: 0xc561, 0x1de8: 0xc581, 0x1de9: 0xc5a1,
+	0x1dea: 0xc5c1, 0x1deb: 0xc5e1, 0x1dec: 0xc601, 0x1ded: 0xc621, 0x1dee: 0xc641, 0x1def: 0xc661,
+	0x1df0: 0xc681, 0x1df1: 0xc6a1, 0x1df2: 0xc6c1, 0x1df3: 0xc6e1, 0x1df4: 0xc701, 0x1df5: 0xc721,
+	0x1df6: 0xc741, 0x1df7: 0xc761, 0x1df8: 0xc781, 0x1df9: 0xc7a1, 0x1dfa: 0xc7c1, 0x1dfb: 0xc7e1,
+	0x1dfc: 0x0040, 0x1dfd: 0x0040, 0x1dfe: 0x0040, 0x1dff: 0x0040,
+	// Block 0x78, offset 0x1e00
+	0x1e00: 0xcb11, 0x1e01: 0xcb31, 0x1e02: 0xcb51, 0x1e03: 0x8b55, 0x1e04: 0xcb71, 0x1e05: 0xcb91,
+	0x1e06: 0xcbb1, 0x1e07: 0xcbd1, 0x1e08: 0xcbf1, 0x1e09: 0xcc11, 0x1e0a: 0xcc31, 0x1e0b: 0xcc51,
+	0x1e0c: 0xcc71, 0x1e0d: 0x8b75, 0x1e0e: 0xcc91, 0x1e0f: 0xccb1, 0x1e10: 0xccd1, 0x1e11: 0xccf1,
+	0x1e12: 0x8b95, 0x1e13: 0xcd11, 0x1e14: 0xcd31, 0x1e15: 0xc441, 0x1e16: 0x8bb5, 0x1e17: 0xcd51,
+	0x1e18: 0xcd71, 0x1e19: 0xcd91, 0x1e1a: 0xcdb1, 0x1e1b: 0xcdd1, 0x1e1c: 0x8bd5, 0x1e1d: 0xcdf1,
+	0x1e1e: 0xce11, 0x1e1f: 0xce31, 0x1e20: 0xce51, 0x1e21: 0xce71, 0x1e22: 0xc7a1, 0x1e23: 0xce91,
+	0x1e24: 0xceb1, 0x1e25: 0xced1, 0x1e26: 0xcef1, 0x1e27: 0xcf11, 0x1e28: 0xcf31, 0x1e29: 0xcf51,
+	0x1e2a: 0xcf71, 0x1e2b: 0xcf91, 0x1e2c: 0xcfb1, 0x1e2d: 0xcfd1, 0x1e2e: 0xcff1, 0x1e2f: 0xd011,
+	0x1e30: 0xd031, 0x1e31: 0xd051, 0x1e32: 0xd051, 0x1e33: 0xd051, 0x1e34: 0x8bf5, 0x1e35: 0xd071,
+	0x1e36: 0xd091, 0x1e37: 0xd0b1, 0x1e38: 0x8c15, 0x1e39: 0xd0d1, 0x1e3a: 0xd0f1, 0x1e3b: 0xd111,
+	0x1e3c: 0xd131, 0x1e3d: 0xd151, 0x1e3e: 0xd171, 0x1e3f: 0xd191,
+	// Block 0x79, offset 0x1e40
+	0x1e40: 0xd1b1, 0x1e41: 0xd1d1, 0x1e42: 0xd1f1, 0x1e43: 0xd211, 0x1e44: 0xd231, 0x1e45: 0xd251,
+	0x1e46: 0xd251, 0x1e47: 0xd271, 0x1e48: 0xd291, 0x1e49: 0xd2b1, 0x1e4a: 0xd2d1, 0x1e4b: 0xd2f1,
+	0x1e4c: 0xd311, 0x1e4d: 0xd331, 0x1e4e: 0xd351, 0x1e4f: 0xd371, 0x1e50: 0xd391, 0x1e51: 0xd3b1,
+	0x1e52: 0xd3d1, 0x1e53: 0xd3f1, 0x1e54: 0xd411, 0x1e55: 0xd431, 0x1e56: 0xd451, 0x1e57: 0xd471,
+	0x1e58: 0xd491, 0x1e59: 0x8c35, 0x1e5a: 0xd4b1, 0x1e5b: 0xd4d1, 0x1e5c: 0xd4f1, 0x1e5d: 0xc321,
+	0x1e5e: 0xd511, 0x1e5f: 0xd531, 0x1e60: 0x8c55, 0x1e61: 0x8c75, 0x1e62: 0xd551, 0x1e63: 0xd571,
+	0x1e64: 0xd591, 0x1e65: 0xd5b1, 0x1e66: 0xd5d1, 0x1e67: 0xd5f1, 0x1e68: 0x2040, 0x1e69: 0xd611,
+	0x1e6a: 0xd631, 0x1e6b: 0xd631, 0x1e6c: 0x8c95, 0x1e6d: 0xd651, 0x1e6e: 0xd671, 0x1e6f: 0xd691,
+	0x1e70: 0xd6b1, 0x1e71: 0x8cb5, 0x1e72: 0xd6d1, 0x1e73: 0xd6f1, 0x1e74: 0x2040, 0x1e75: 0xd711,
+	0x1e76: 0xd731, 0x1e77: 0xd751, 0x1e78: 0xd771, 0x1e79: 0xd791, 0x1e7a: 0xd7b1, 0x1e7b: 0x8cd5,
+	0x1e7c: 0xd7d1, 0x1e7d: 0x8cf5, 0x1e7e: 0xd7f1, 0x1e7f: 0xd811,
+	// Block 0x7a, offset 0x1e80
+	0x1e80: 0xd831, 0x1e81: 0xd851, 0x1e82: 0xd871, 0x1e83: 0xd891, 0x1e84: 0xd8b1, 0x1e85: 0xd8d1,
+	0x1e86: 0xd8f1, 0x1e87: 0xd911, 0x1e88: 0xd931, 0x1e89: 0x8d15, 0x1e8a: 0xd951, 0x1e8b: 0xd971,
+	0x1e8c: 0xd991, 0x1e8d: 0xd9b1, 0x1e8e: 0xd9d1, 0x1e8f: 0x8d35, 0x1e90: 0xd9f1, 0x1e91: 0x8d55,
+	0x1e92: 0x8d75, 0x1e93: 0xda11, 0x1e94: 0xda31, 0x1e95: 0xda31, 0x1e96: 0xda51, 0x1e97: 0x8d95,
+	0x1e98: 0x8db5, 0x1e99: 0xda71, 0x1e9a: 0xda91, 0x1e9b: 0xdab1, 0x1e9c: 0xdad1, 0x1e9d: 0xdaf1,
+	0x1e9e: 0xdb11, 0x1e9f: 0xdb31, 0x1ea0: 0xdb51, 0x1ea1: 0xdb71, 0x1ea2: 0xdb91, 0x1ea3: 0xdbb1,
+	0x1ea4: 0x8dd5, 0x1ea5: 0xdbd1, 0x1ea6: 0xdbf1, 0x1ea7: 0xdc11, 0x1ea8: 0xdc31, 0x1ea9: 0xdc11,
+	0x1eaa: 0xdc51, 0x1eab: 0xdc71, 0x1eac: 0xdc91, 0x1ead: 0xdcb1, 0x1eae: 0xdcd1, 0x1eaf: 0xdcf1,
+	0x1eb0: 0xdd11, 0x1eb1: 0xdd31, 0x1eb2: 0xdd51, 0x1eb3: 0xdd71, 0x1eb4: 0xdd91, 0x1eb5: 0xddb1,
+	0x1eb6: 0xddd1, 0x1eb7: 0xddf1, 0x1eb8: 0x8df5, 0x1eb9: 0xde11, 0x1eba: 0xde31, 0x1ebb: 0xde51,
+	0x1ebc: 0xde71, 0x1ebd: 0xde91, 0x1ebe: 0x8e15, 0x1ebf: 0xdeb1,
+	// Block 0x7b, offset 0x1ec0
+	0x1ec0: 0xe5b1, 0x1ec1: 0xe5d1, 0x1ec2: 0xe5f1, 0x1ec3: 0xe611, 0x1ec4: 0xe631, 0x1ec5: 0xe651,
+	0x1ec6: 0x8f35, 0x1ec7: 0xe671, 0x1ec8: 0xe691, 0x1ec9: 0xe6b1, 0x1eca: 0xe6d1, 0x1ecb: 0xe6f1,
+	0x1ecc: 0xe711, 0x1ecd: 0x8f55, 0x1ece: 0xe731, 0x1ecf: 0xe751, 0x1ed0: 0x8f75, 0x1ed1: 0x8f95,
+	0x1ed2: 0xe771, 0x1ed3: 0xe791, 0x1ed4: 0xe7b1, 0x1ed5: 0xe7d1, 0x1ed6: 0xe7f1, 0x1ed7: 0xe811,
+	0x1ed8: 0xe831, 0x1ed9: 0xe851, 0x1eda: 0xe871, 0x1edb: 0x8fb5, 0x1edc: 0xe891, 0x1edd: 0x8fd5,
+	0x1ede: 0xe8b1, 0x1edf: 0x2040, 0x1ee0: 0xe8d1, 0x1ee1: 0xe8f1, 0x1ee2: 0xe911, 0x1ee3: 0x8ff5,
+	0x1ee4: 0xe931, 0x1ee5: 0xe951, 0x1ee6: 0x9015, 0x1ee7: 0x9035, 0x1ee8: 0xe971, 0x1ee9: 0xe991,
+	0x1eea: 0xe9b1, 0x1eeb: 0xe9d1, 0x1eec: 0xe9f1, 0x1eed: 0xe9f1, 0x1eee: 0xea11, 0x1eef: 0xea31,
+	0x1ef0: 0xea51, 0x1ef1: 0xea71, 0x1ef2: 0xea91, 0x1ef3: 0xeab1, 0x1ef4: 0xead1, 0x1ef5: 0x9055,
+	0x1ef6: 0xeaf1, 0x1ef7: 0x9075, 0x1ef8: 0xeb11, 0x1ef9: 0x9095, 0x1efa: 0xeb31, 0x1efb: 0x90b5,
+	0x1efc: 0x90d5, 0x1efd: 0x90f5, 0x1efe: 0xeb51, 0x1eff: 0xeb71,
+	// Block 0x7c, offset 0x1f00
+	0x1f00: 0xeb91, 0x1f01: 0x9115, 0x1f02: 0x9135, 0x1f03: 0x9155, 0x1f04: 0x9175, 0x1f05: 0xebb1,
+	0x1f06: 0xebd1, 0x1f07: 0xebd1, 0x1f08: 0xebf1, 0x1f09: 0xec11, 0x1f0a: 0xec31, 0x1f0b: 0xec51,
+	0x1f0c: 0xec71, 0x1f0d: 0x9195, 0x1f0e: 0xec91, 0x1f0f: 0xecb1, 0x1f10: 0xecd1, 0x1f11: 0xecf1,
+	0x1f12: 0x91b5, 0x1f13: 0xed11, 0x1f14: 0x91d5, 0x1f15: 0x91f5, 0x1f16: 0xed31, 0x1f17: 0xed51,
+	0x1f18: 0xed71, 0x1f19: 0xed91, 0x1f1a: 0xedb1, 0x1f1b: 0xedd1, 0x1f1c: 0x9215, 0x1f1d: 0x9235,
+	0x1f1e: 0x9255, 0x1f1f: 0x2040, 0x1f20: 0xedf1, 0x1f21: 0x9275, 0x1f22: 0xee11, 0x1f23: 0xee31,
+	0x1f24: 0xee51, 0x1f25: 0x9295, 0x1f26: 0xee71, 0x1f27: 0xee91, 0x1f28: 0xeeb1, 0x1f29: 0xeed1,
+	0x1f2a: 0xeef1, 0x1f2b: 0x92b5, 0x1f2c: 0xef11, 0x1f2d: 0xef31, 0x1f2e: 0xef51, 0x1f2f: 0xef71,
+	0x1f30: 0xef91, 0x1f31: 0xefb1, 0x1f32: 0x92d5, 0x1f33: 0x92f5, 0x1f34: 0xefd1, 0x1f35: 0x9315,
+	0x1f36: 0xeff1, 0x1f37: 0x9335, 0x1f38: 0xf011, 0x1f39: 0xf031, 0x1f3a: 0xf051, 0x1f3b: 0x9355,
+	0x1f3c: 0x9375, 0x1f3d: 0xf071, 0x1f3e: 0x9395, 0x1f3f: 0xf091,
+	// Block 0x7d, offset 0x1f40
+	0x1f40: 0xf6d1, 0x1f41: 0xf6f1, 0x1f42: 0xf711, 0x1f43: 0xf731, 0x1f44: 0xf751, 0x1f45: 0x9555,
+	0x1f46: 0xf771, 0x1f47: 0xf791, 0x1f48: 0xf7b1, 0x1f49: 0xf7d1, 0x1f4a: 0xf7f1, 0x1f4b: 0x9575,
+	0x1f4c: 0x9595, 0x1f4d: 0xf811, 0x1f4e: 0xf831, 0x1f4f: 0xf851, 0x1f50: 0xf871, 0x1f51: 0xf891,
+	0x1f52: 0xf8b1, 0x1f53: 0x95b5, 0x1f54: 0xf8d1, 0x1f55: 0xf8f1, 0x1f56: 0xf911, 0x1f57: 0xf931,
+	0x1f58: 0x95d5, 0x1f59: 0x95f5, 0x1f5a: 0xf951, 0x1f5b: 0xf971, 0x1f5c: 0xf991, 0x1f5d: 0x9615,
+	0x1f5e: 0xf9b1, 0x1f5f: 0xf9d1, 0x1f60: 0x684d, 0x1f61: 0x9635, 0x1f62: 0xf9f1, 0x1f63: 0xfa11,
+	0x1f64: 0xfa31, 0x1f65: 0x9655, 0x1f66: 0xfa51, 0x1f67: 0xfa71, 0x1f68: 0xfa91, 0x1f69: 0xfab1,
+	0x1f6a: 0xfad1, 0x1f6b: 0xfaf1, 0x1f6c: 0xfb11, 0x1f6d: 0x9675, 0x1f6e: 0xfb31, 0x1f6f: 0xfb51,
+	0x1f70: 0xfb71, 0x1f71: 0x9695, 0x1f72: 0xfb91, 0x1f73: 0xfbb1, 0x1f74: 0xfbd1, 0x1f75: 0xfbf1,
+	0x1f76: 0x7b6d, 0x1f77: 0x96b5, 0x1f78: 0xfc11, 0x1f79: 0xfc31, 0x1f7a: 0xfc51, 0x1f7b: 0x96d5,
+	0x1f7c: 0xfc71, 0x1f7d: 0x96f5, 0x1f7e: 0xfc91, 0x1f7f: 0xfc91,
+	// Block 0x7e, offset 0x1f80
+	0x1f80: 0xfcb1, 0x1f81: 0x9715, 0x1f82: 0xfcd1, 0x1f83: 0xfcf1, 0x1f84: 0xfd11, 0x1f85: 0xfd31,
+	0x1f86: 0xfd51, 0x1f87: 0xfd71, 0x1f88: 0xfd91, 0x1f89: 0x9735, 0x1f8a: 0xfdb1, 0x1f8b: 0xfdd1,
+	0x1f8c: 0xfdf1, 0x1f8d: 0xfe11, 0x1f8e: 0xfe31, 0x1f8f: 0xfe51, 0x1f90: 0x9755, 0x1f91: 0xfe71,
+	0x1f92: 0x9775, 0x1f93: 0x9795, 0x1f94: 0x97b5, 0x1f95: 0xfe91, 0x1f96: 0xfeb1, 0x1f97: 0xfed1,
+	0x1f98: 0xfef1, 0x1f99: 0xff11, 0x1f9a: 0xff31, 0x1f9b: 0xff51, 0x1f9c: 0xff71, 0x1f9d: 0x97d5,
+	0x1f9e: 0x0040, 0x1f9f: 0x0040, 0x1fa0: 0x0040, 0x1fa1: 0x0040, 0x1fa2: 0x0040, 0x1fa3: 0x0040,
+	0x1fa4: 0x0040, 0x1fa5: 0x0040, 0x1fa6: 0x0040, 0x1fa7: 0x0040, 0x1fa8: 0x0040, 0x1fa9: 0x0040,
+	0x1faa: 0x0040, 0x1fab: 0x0040, 0x1fac: 0x0040, 0x1fad: 0x0040, 0x1fae: 0x0040, 0x1faf: 0x0040,
+	0x1fb0: 0x0040, 0x1fb1: 0x0040, 0x1fb2: 0x0040, 0x1fb3: 0x0040, 0x1fb4: 0x0040, 0x1fb5: 0x0040,
+	0x1fb6: 0x0040, 0x1fb7: 0x0040, 0x1fb8: 0x0040, 0x1fb9: 0x0040, 0x1fba: 0x0040, 0x1fbb: 0x0040,
+	0x1fbc: 0x0040, 0x1fbd: 0x0040, 0x1fbe: 0x0040, 0x1fbf: 0x0040,
+}
+
+// idnaIndex: 36 blocks, 2304 entries, 4608 bytes
+// Block 0 is the zero block.
+var idnaIndex = [2304]uint16{
+	// Block 0x0, offset 0x0
+	// Block 0x1, offset 0x40
+	// Block 0x2, offset 0x80
+	// Block 0x3, offset 0xc0
+	0xc2: 0x01, 0xc3: 0x7d, 0xc4: 0x02, 0xc5: 0x03, 0xc6: 0x04, 0xc7: 0x05,
+	0xc8: 0x06, 0xc9: 0x7e, 0xca: 0x7f, 0xcb: 0x07, 0xcc: 0x80, 0xcd: 0x08, 0xce: 0x09, 0xcf: 0x0a,
+	0xd0: 0x81, 0xd1: 0x0b, 0xd2: 0x0c, 0xd3: 0x0d, 0xd4: 0x0e, 0xd5: 0x82, 0xd6: 0x83, 0xd7: 0x84,
+	0xd8: 0x0f, 0xd9: 0x10, 0xda: 0x85, 0xdb: 0x11, 0xdc: 0x12, 0xdd: 0x86, 0xde: 0x87, 0xdf: 0x88,
+	0xe0: 0x02, 0xe1: 0x03, 0xe2: 0x04, 0xe3: 0x05, 0xe4: 0x06, 0xe5: 0x07, 0xe6: 0x07, 0xe7: 0x07,
+	0xe8: 0x07, 0xe9: 0x08, 0xea: 0x09, 0xeb: 0x07, 0xec: 0x07, 0xed: 0x0a, 0xee: 0x0b, 0xef: 0x0c,
+	0xf0: 0x1d, 0xf1: 0x1e, 0xf2: 0x1e, 0xf3: 0x20, 0xf4: 0x21,
+	// Block 0x4, offset 0x100
+	0x120: 0x89, 0x121: 0x13, 0x122: 0x8a, 0x123: 0x8b, 0x124: 0x8c, 0x125: 0x14, 0x126: 0x15, 0x127: 0x16,
+	0x128: 0x17, 0x129: 0x18, 0x12a: 0x19, 0x12b: 0x1a, 0x12c: 0x1b, 0x12d: 0x1c, 0x12e: 0x1d, 0x12f: 0x8d,
+	0x130: 0x8e, 0x131: 0x1e, 0x132: 0x1f, 0x133: 0x20, 0x134: 0x8f, 0x135: 0x21, 0x136: 0x90, 0x137: 0x91,
+	0x138: 0x92, 0x139: 0x93, 0x13a: 0x22, 0x13b: 0x94, 0x13c: 0x95, 0x13d: 0x23, 0x13e: 0x24, 0x13f: 0x96,
+	// Block 0x5, offset 0x140
+	0x140: 0x97, 0x141: 0x98, 0x142: 0x99, 0x143: 0x9a, 0x144: 0x9b, 0x145: 0x9c, 0x146: 0x9d, 0x147: 0x9e,
+	0x148: 0x9f, 0x149: 0xa0, 0x14a: 0xa1, 0x14b: 0xa2, 0x14c: 0xa3, 0x14d: 0xa4, 0x14e: 0xa5, 0x14f: 0xa6,
+	0x150: 0xa7, 0x151: 0x9f, 0x152: 0x9f, 0x153: 0x9f, 0x154: 0x9f, 0x155: 0x9f, 0x156: 0x9f, 0x157: 0x9f,
+	0x158: 0x9f, 0x159: 0xa8, 0x15a: 0xa9, 0x15b: 0xaa, 0x15c: 0xab, 0x15d: 0xac, 0x15e: 0xad, 0x15f: 0xae,
+	0x160: 0xaf, 0x161: 0xb0, 0x162: 0xb1, 0x163: 0xb2, 0x164: 0xb3, 0x165: 0xb4, 0x166: 0xb5, 0x167: 0xb6,
+	0x168: 0xb7, 0x169: 0xb8, 0x16a: 0xb9, 0x16b: 0xba, 0x16c: 0xbb, 0x16d: 0xbc, 0x16e: 0xbd, 0x16f: 0xbe,
+	0x170: 0xbf, 0x171: 0xc0, 0x172: 0xc1, 0x173: 0xc2, 0x174: 0x25, 0x175: 0x26, 0x176: 0x27, 0x177: 0xc3,
+	0x178: 0x28, 0x179: 0x28, 0x17a: 0x29, 0x17b: 0x28, 0x17c: 0xc4, 0x17d: 0x2a, 0x17e: 0x2b, 0x17f: 0x2c,
+	// Block 0x6, offset 0x180
+	0x180: 0x2d, 0x181: 0x2e, 0x182: 0x2f, 0x183: 0xc5, 0x184: 0x30, 0x185: 0x31, 0x186: 0xc6, 0x187: 0x9b,
+	0x188: 0xc7, 0x189: 0xc8, 0x18a: 0x9b, 0x18b: 0x9b, 0x18c: 0xc9, 0x18d: 0x9b, 0x18e: 0x9b, 0x18f: 0x9b,
+	0x190: 0xca, 0x191: 0x32, 0x192: 0x33, 0x193: 0x34, 0x194: 0x9b, 0x195: 0x9b, 0x196: 0x9b, 0x197: 0x9b,
+	0x198: 0x9b, 0x199: 0x9b, 0x19a: 0x9b, 0x19b: 0x9b, 0x19c: 0x9b, 0x19d: 0x9b, 0x19e: 0x9b, 0x19f: 0x9b,
+	0x1a0: 0x9b, 0x1a1: 0x9b, 0x1a2: 0x9b, 0x1a3: 0x9b, 0x1a4: 0x9b, 0x1a5: 0x9b, 0x1a6: 0x9b, 0x1a7: 0x9b,
+	0x1a8: 0xcb, 0x1a9: 0xcc, 0x1aa: 0x9b, 0x1ab: 0xcd, 0x1ac: 0x9b, 0x1ad: 0xce, 0x1ae: 0xcf, 0x1af: 0x9b,
+	0x1b0: 0xd0, 0x1b1: 0x35, 0x1b2: 0x28, 0x1b3: 0x36, 0x1b4: 0xd1, 0x1b5: 0xd2, 0x1b6: 0xd3, 0x1b7: 0xd4,
+	0x1b8: 0xd5, 0x1b9: 0xd6, 0x1ba: 0xd7, 0x1bb: 0xd8, 0x1bc: 0xd9, 0x1bd: 0xda, 0x1be: 0xdb, 0x1bf: 0x37,
+	// Block 0x7, offset 0x1c0
+	0x1c0: 0x38, 0x1c1: 0xdc, 0x1c2: 0xdd, 0x1c3: 0xde, 0x1c4: 0xdf, 0x1c5: 0x39, 0x1c6: 0x3a, 0x1c7: 0xe0,
+	0x1c8: 0xe1, 0x1c9: 0x3b, 0x1ca: 0x3c, 0x1cb: 0x3d, 0x1cc: 0x3e, 0x1cd: 0x3f, 0x1ce: 0x40, 0x1cf: 0x41,
+	0x1d0: 0x9f, 0x1d1: 0x9f, 0x1d2: 0x9f, 0x1d3: 0x9f, 0x1d4: 0x9f, 0x1d5: 0x9f, 0x1d6: 0x9f, 0x1d7: 0x9f,
+	0x1d8: 0x9f, 0x1d9: 0x9f, 0x1da: 0x9f, 0x1db: 0x9f, 0x1dc: 0x9f, 0x1dd: 0x9f, 0x1de: 0x9f, 0x1df: 0x9f,
+	0x1e0: 0x9f, 0x1e1: 0x9f, 0x1e2: 0x9f, 0x1e3: 0x9f, 0x1e4: 0x9f, 0x1e5: 0x9f, 0x1e6: 0x9f, 0x1e7: 0x9f,
+	0x1e8: 0x9f, 0x1e9: 0x9f, 0x1ea: 0x9f, 0x1eb: 0x9f, 0x1ec: 0x9f, 0x1ed: 0x9f, 0x1ee: 0x9f, 0x1ef: 0x9f,
+	0x1f0: 0x9f, 0x1f1: 0x9f, 0x1f2: 0x9f, 0x1f3: 0x9f, 0x1f4: 0x9f, 0x1f5: 0x9f, 0x1f6: 0x9f, 0x1f7: 0x9f,
+	0x1f8: 0x9f, 0x1f9: 0x9f, 0x1fa: 0x9f, 0x1fb: 0x9f, 0x1fc: 0x9f, 0x1fd: 0x9f, 0x1fe: 0x9f, 0x1ff: 0x9f,
+	// Block 0x8, offset 0x200
+	0x200: 0x9f, 0x201: 0x9f, 0x202: 0x9f, 0x203: 0x9f, 0x204: 0x9f, 0x205: 0x9f, 0x206: 0x9f, 0x207: 0x9f,
+	0x208: 0x9f, 0x209: 0x9f, 0x20a: 0x9f, 0x20b: 0x9f, 0x20c: 0x9f, 0x20d: 0x9f, 0x20e: 0x9f, 0x20f: 0x9f,
+	0x210: 0x9f, 0x211: 0x9f, 0x212: 0x9f, 0x213: 0x9f, 0x214: 0x9f, 0x215: 0x9f, 0x216: 0x9f, 0x217: 0x9f,
+	0x218: 0x9f, 0x219: 0x9f, 0x21a: 0x9f, 0x21b: 0x9f, 0x21c: 0x9f, 0x21d: 0x9f, 0x21e: 0x9f, 0x21f: 0x9f,
+	0x220: 0x9f, 0x221: 0x9f, 0x222: 0x9f, 0x223: 0x9f, 0x224: 0x9f, 0x225: 0x9f, 0x226: 0x9f, 0x227: 0x9f,
+	0x228: 0x9f, 0x229: 0x9f, 0x22a: 0x9f, 0x22b: 0x9f, 0x22c: 0x9f, 0x22d: 0x9f, 0x22e: 0x9f, 0x22f: 0x9f,
+	0x230: 0x9f, 0x231: 0x9f, 0x232: 0x9f, 0x233: 0x9f, 0x234: 0x9f, 0x235: 0x9f, 0x236: 0xb2, 0x237: 0x9b,
+	0x238: 0x9f, 0x239: 0x9f, 0x23a: 0x9f, 0x23b: 0x9f, 0x23c: 0x9f, 0x23d: 0x9f, 0x23e: 0x9f, 0x23f: 0x9f,
+	// Block 0x9, offset 0x240
+	0x240: 0x9f, 0x241: 0x9f, 0x242: 0x9f, 0x243: 0x9f, 0x244: 0x9f, 0x245: 0x9f, 0x246: 0x9f, 0x247: 0x9f,
+	0x248: 0x9f, 0x249: 0x9f, 0x24a: 0x9f, 0x24b: 0x9f, 0x24c: 0x9f, 0x24d: 0x9f, 0x24e: 0x9f, 0x24f: 0x9f,
+	0x250: 0x9f, 0x251: 0x9f, 0x252: 0x9f, 0x253: 0x9f, 0x254: 0x9f, 0x255: 0x9f, 0x256: 0x9f, 0x257: 0x9f,
+	0x258: 0x9f, 0x259: 0x9f, 0x25a: 0x9f, 0x25b: 0x9f, 0x25c: 0x9f, 0x25d: 0x9f, 0x25e: 0x9f, 0x25f: 0x9f,
+	0x260: 0x9f, 0x261: 0x9f, 0x262: 0x9f, 0x263: 0x9f, 0x264: 0x9f, 0x265: 0x9f, 0x266: 0x9f, 0x267: 0x9f,
+	0x268: 0x9f, 0x269: 0x9f, 0x26a: 0x9f, 0x26b: 0x9f, 0x26c: 0x9f, 0x26d: 0x9f, 0x26e: 0x9f, 0x26f: 0x9f,
+	0x270: 0x9f, 0x271: 0x9f, 0x272: 0x9f, 0x273: 0x9f, 0x274: 0x9f, 0x275: 0x9f, 0x276: 0x9f, 0x277: 0x9f,
+	0x278: 0x9f, 0x279: 0x9f, 0x27a: 0x9f, 0x27b: 0x9f, 0x27c: 0x9f, 0x27d: 0x9f, 0x27e: 0x9f, 0x27f: 0x9f,
+	// Block 0xa, offset 0x280
+	0x280: 0x9f, 0x281: 0x9f, 0x282: 0x9f, 0x283: 0x9f, 0x284: 0x9f, 0x285: 0x9f, 0x286: 0x9f, 0x287: 0x9f,
+	0x288: 0x9f, 0x289: 0x9f, 0x28a: 0x9f, 0x28b: 0x9f, 0x28c: 0x9f, 0x28d: 0x9f, 0x28e: 0x9f, 0x28f: 0x9f,
+	0x290: 0x9f, 0x291: 0x9f, 0x292: 0x9f, 0x293: 0x9f, 0x294: 0x9f, 0x295: 0x9f, 0x296: 0x9f, 0x297: 0x9f,
+	0x298: 0x9f, 0x299: 0x9f, 0x29a: 0x9f, 0x29b: 0x9f, 0x29c: 0x9f, 0x29d: 0x9f, 0x29e: 0x9f, 0x29f: 0x9f,
+	0x2a0: 0x9f, 0x2a1: 0x9f, 0x2a2: 0x9f, 0x2a3: 0x9f, 0x2a4: 0x9f, 0x2a5: 0x9f, 0x2a6: 0x9f, 0x2a7: 0x9f,
+	0x2a8: 0x9f, 0x2a9: 0x9f, 0x2aa: 0x9f, 0x2ab: 0x9f, 0x2ac: 0x9f, 0x2ad: 0x9f, 0x2ae: 0x9f, 0x2af: 0x9f,
+	0x2b0: 0x9f, 0x2b1: 0x9f, 0x2b2: 0x9f, 0x2b3: 0x9f, 0x2b4: 0x9f, 0x2b5: 0x9f, 0x2b6: 0x9f, 0x2b7: 0x9f,
+	0x2b8: 0x9f, 0x2b9: 0x9f, 0x2ba: 0x9f, 0x2bb: 0x9f, 0x2bc: 0x9f, 0x2bd: 0x9f, 0x2be: 0x9f, 0x2bf: 0xe2,
+	// Block 0xb, offset 0x2c0
+	0x2c0: 0x9f, 0x2c1: 0x9f, 0x2c2: 0x9f, 0x2c3: 0x9f, 0x2c4: 0x9f, 0x2c5: 0x9f, 0x2c6: 0x9f, 0x2c7: 0x9f,
+	0x2c8: 0x9f, 0x2c9: 0x9f, 0x2ca: 0x9f, 0x2cb: 0x9f, 0x2cc: 0x9f, 0x2cd: 0x9f, 0x2ce: 0x9f, 0x2cf: 0x9f,
+	0x2d0: 0x9f, 0x2d1: 0x9f, 0x2d2: 0xe3, 0x2d3: 0xe4, 0x2d4: 0x9f, 0x2d5: 0x9f, 0x2d6: 0x9f, 0x2d7: 0x9f,
+	0x2d8: 0xe5, 0x2d9: 0x42, 0x2da: 0x43, 0x2db: 0xe6, 0x2dc: 0x44, 0x2dd: 0x45, 0x2de: 0x46, 0x2df: 0xe7,
+	0x2e0: 0xe8, 0x2e1: 0xe9, 0x2e2: 0xea, 0x2e3: 0xeb, 0x2e4: 0xec, 0x2e5: 0xed, 0x2e6: 0xee, 0x2e7: 0xef,
+	0x2e8: 0xf0, 0x2e9: 0xf1, 0x2ea: 0xf2, 0x2eb: 0xf3, 0x2ec: 0xf4, 0x2ed: 0xf5, 0x2ee: 0xf6, 0x2ef: 0xf7,
+	0x2f0: 0x9f, 0x2f1: 0x9f, 0x2f2: 0x9f, 0x2f3: 0x9f, 0x2f4: 0x9f, 0x2f5: 0x9f, 0x2f6: 0x9f, 0x2f7: 0x9f,
+	0x2f8: 0x9f, 0x2f9: 0x9f, 0x2fa: 0x9f, 0x2fb: 0x9f, 0x2fc: 0x9f, 0x2fd: 0x9f, 0x2fe: 0x9f, 0x2ff: 0x9f,
+	// Block 0xc, offset 0x300
+	0x300: 0x9f, 0x301: 0x9f, 0x302: 0x9f, 0x303: 0x9f, 0x304: 0x9f, 0x305: 0x9f, 0x306: 0x9f, 0x307: 0x9f,
+	0x308: 0x9f, 0x309: 0x9f, 0x30a: 0x9f, 0x30b: 0x9f, 0x30c: 0x9f, 0x30d: 0x9f, 0x30e: 0x9f, 0x30f: 0x9f,
+	0x310: 0x9f, 0x311: 0x9f, 0x312: 0x9f, 0x313: 0x9f, 0x314: 0x9f, 0x315: 0x9f, 0x316: 0x9f, 0x317: 0x9f,
+	0x318: 0x9f, 0x319: 0x9f, 0x31a: 0x9f, 0x31b: 0x9f, 0x31c: 0x9f, 0x31d: 0x9f, 0x31e: 0xf8, 0x31f: 0xf9,
+	// Block 0xd, offset 0x340
+	0x340: 0xba, 0x341: 0xba, 0x342: 0xba, 0x343: 0xba, 0x344: 0xba, 0x345: 0xba, 0x346: 0xba, 0x347: 0xba,
+	0x348: 0xba, 0x349: 0xba, 0x34a: 0xba, 0x34b: 0xba, 0x34c: 0xba, 0x34d: 0xba, 0x34e: 0xba, 0x34f: 0xba,
+	0x350: 0xba, 0x351: 0xba, 0x352: 0xba, 0x353: 0xba, 0x354: 0xba, 0x355: 0xba, 0x356: 0xba, 0x357: 0xba,
+	0x358: 0xba, 0x359: 0xba, 0x35a: 0xba, 0x35b: 0xba, 0x35c: 0xba, 0x35d: 0xba, 0x35e: 0xba, 0x35f: 0xba,
+	0x360: 0xba, 0x361: 0xba, 0x362: 0xba, 0x363: 0xba, 0x364: 0xba, 0x365: 0xba, 0x366: 0xba, 0x367: 0xba,
+	0x368: 0xba, 0x369: 0xba, 0x36a: 0xba, 0x36b: 0xba, 0x36c: 0xba, 0x36d: 0xba, 0x36e: 0xba, 0x36f: 0xba,
+	0x370: 0xba, 0x371: 0xba, 0x372: 0xba, 0x373: 0xba, 0x374: 0xba, 0x375: 0xba, 0x376: 0xba, 0x377: 0xba,
+	0x378: 0xba, 0x379: 0xba, 0x37a: 0xba, 0x37b: 0xba, 0x37c: 0xba, 0x37d: 0xba, 0x37e: 0xba, 0x37f: 0xba,
+	// Block 0xe, offset 0x380
+	0x380: 0xba, 0x381: 0xba, 0x382: 0xba, 0x383: 0xba, 0x384: 0xba, 0x385: 0xba, 0x386: 0xba, 0x387: 0xba,
+	0x388: 0xba, 0x389: 0xba, 0x38a: 0xba, 0x38b: 0xba, 0x38c: 0xba, 0x38d: 0xba, 0x38e: 0xba, 0x38f: 0xba,
+	0x390: 0xba, 0x391: 0xba, 0x392: 0xba, 0x393: 0xba, 0x394: 0xba, 0x395: 0xba, 0x396: 0xba, 0x397: 0xba,
+	0x398: 0xba, 0x399: 0xba, 0x39a: 0xba, 0x39b: 0xba, 0x39c: 0xba, 0x39d: 0xba, 0x39e: 0xba, 0x39f: 0xba,
+	0x3a0: 0xba, 0x3a1: 0xba, 0x3a2: 0xba, 0x3a3: 0xba, 0x3a4: 0xfa, 0x3a5: 0xfb, 0x3a6: 0xfc, 0x3a7: 0xfd,
+	0x3a8: 0x47, 0x3a9: 0xfe, 0x3aa: 0xff, 0x3ab: 0x48, 0x3ac: 0x49, 0x3ad: 0x4a, 0x3ae: 0x4b, 0x3af: 0x4c,
+	0x3b0: 0x100, 0x3b1: 0x4d, 0x3b2: 0x4e, 0x3b3: 0x4f, 0x3b4: 0x50, 0x3b5: 0x51, 0x3b6: 0x101, 0x3b7: 0x52,
+	0x3b8: 0x53, 0x3b9: 0x54, 0x3ba: 0x55, 0x3bb: 0x56, 0x3bc: 0x57, 0x3bd: 0x58, 0x3be: 0x59, 0x3bf: 0x5a,
+	// Block 0xf, offset 0x3c0
+	0x3c0: 0x102, 0x3c1: 0x103, 0x3c2: 0x9f, 0x3c3: 0x104, 0x3c4: 0x105, 0x3c5: 0x9b, 0x3c6: 0x106, 0x3c7: 0x107,
+	0x3c8: 0xba, 0x3c9: 0xba, 0x3ca: 0x108, 0x3cb: 0x109, 0x3cc: 0x10a, 0x3cd: 0x10b, 0x3ce: 0x10c, 0x3cf: 0x10d,
+	0x3d0: 0x10e, 0x3d1: 0x9f, 0x3d2: 0x10f, 0x3d3: 0x110, 0x3d4: 0x111, 0x3d5: 0x112, 0x3d6: 0xba, 0x3d7: 0xba,
+	0x3d8: 0x9f, 0x3d9: 0x9f, 0x3da: 0x9f, 0x3db: 0x9f, 0x3dc: 0x113, 0x3dd: 0x114, 0x3de: 0xba, 0x3df: 0xba,
+	0x3e0: 0x115, 0x3e1: 0x116, 0x3e2: 0x117, 0x3e3: 0x118, 0x3e4: 0x119, 0x3e5: 0xba, 0x3e6: 0x11a, 0x3e7: 0x11b,
+	0x3e8: 0x11c, 0x3e9: 0x11d, 0x3ea: 0x11e, 0x3eb: 0x5b, 0x3ec: 0x11f, 0x3ed: 0x120, 0x3ee: 0x5c, 0x3ef: 0xba,
+	0x3f0: 0x121, 0x3f1: 0x122, 0x3f2: 0x123, 0x3f3: 0x124, 0x3f4: 0x125, 0x3f5: 0xba, 0x3f6: 0xba, 0x3f7: 0xba,
+	0x3f8: 0xba, 0x3f9: 0x126, 0x3fa: 0xba, 0x3fb: 0xba, 0x3fc: 0x127, 0x3fd: 0x128, 0x3fe: 0xba, 0x3ff: 0x129,
+	// Block 0x10, offset 0x400
+	0x400: 0x12a, 0x401: 0x12b, 0x402: 0x12c, 0x403: 0x12d, 0x404: 0x12e, 0x405: 0x12f, 0x406: 0x130, 0x407: 0x131,
+	0x408: 0x132, 0x409: 0xba, 0x40a: 0x133, 0x40b: 0x134, 0x40c: 0x5d, 0x40d: 0x5e, 0x40e: 0xba, 0x40f: 0xba,
+	0x410: 0x135, 0x411: 0x136, 0x412: 0x137, 0x413: 0x138, 0x414: 0xba, 0x415: 0xba, 0x416: 0x139, 0x417: 0x13a,
+	0x418: 0x13b, 0x419: 0x13c, 0x41a: 0x13d, 0x41b: 0x13e, 0x41c: 0x13f, 0x41d: 0xba, 0x41e: 0xba, 0x41f: 0xba,
+	0x420: 0x140, 0x421: 0xba, 0x422: 0x141, 0x423: 0x142, 0x424: 0xba, 0x425: 0xba, 0x426: 0x143, 0x427: 0x144,
+	0x428: 0x145, 0x429: 0x146, 0x42a: 0x147, 0x42b: 0x148, 0x42c: 0xba, 0x42d: 0xba, 0x42e: 0xba, 0x42f: 0xba,
+	0x430: 0x149, 0x431: 0x14a, 0x432: 0x14b, 0x433: 0xba, 0x434: 0x14c, 0x435: 0x14d, 0x436: 0x14e, 0x437: 0xba,
+	0x438: 0xba, 0x439: 0xba, 0x43a: 0xba, 0x43b: 0x14f, 0x43c: 0xba, 0x43d: 0xba, 0x43e: 0xba, 0x43f: 0x150,
+	// Block 0x11, offset 0x440
+	0x440: 0x9f, 0x441: 0x9f, 0x442: 0x9f, 0x443: 0x9f, 0x444: 0x9f, 0x445: 0x9f, 0x446: 0x9f, 0x447: 0x9f,
+	0x448: 0x9f, 0x449: 0x9f, 0x44a: 0x9f, 0x44b: 0x9f, 0x44c: 0x9f, 0x44d: 0x9f, 0x44e: 0x151, 0x44f: 0xba,
+	0x450: 0x9b, 0x451: 0x152, 0x452: 0x9f, 0x453: 0x9f, 0x454: 0x9f, 0x455: 0x153, 0x456: 0xba, 0x457: 0xba,
+	0x458: 0xba, 0x459: 0xba, 0x45a: 0xba, 0x45b: 0xba, 0x45c: 0xba, 0x45d: 0xba, 0x45e: 0xba, 0x45f: 0xba,
+	0x460: 0xba, 0x461: 0xba, 0x462: 0xba, 0x463: 0xba, 0x464: 0xba, 0x465: 0xba, 0x466: 0xba, 0x467: 0xba,
+	0x468: 0xba, 0x469: 0xba, 0x46a: 0xba, 0x46b: 0xba, 0x46c: 0xba, 0x46d: 0xba, 0x46e: 0xba, 0x46f: 0xba,
+	0x470: 0xba, 0x471: 0xba, 0x472: 0xba, 0x473: 0xba, 0x474: 0xba, 0x475: 0xba, 0x476: 0xba, 0x477: 0xba,
+	0x478: 0xba, 0x479: 0xba, 0x47a: 0xba, 0x47b: 0xba, 0x47c: 0xba, 0x47d: 0xba, 0x47e: 0xba, 0x47f: 0xba,
+	// Block 0x12, offset 0x480
+	0x480: 0x9f, 0x481: 0x9f, 0x482: 0x9f, 0x483: 0x9f, 0x484: 0x9f, 0x485: 0x9f, 0x486: 0x9f, 0x487: 0x9f,
+	0x488: 0x9f, 0x489: 0x9f, 0x48a: 0x9f, 0x48b: 0x9f, 0x48c: 0x9f, 0x48d: 0x9f, 0x48e: 0x9f, 0x48f: 0x9f,
+	0x490: 0x154, 0x491: 0xba, 0x492: 0xba, 0x493: 0xba, 0x494: 0xba, 0x495: 0xba, 0x496: 0xba, 0x497: 0xba,
+	0x498: 0xba, 0x499: 0xba, 0x49a: 0xba, 0x49b: 0xba, 0x49c: 0xba, 0x49d: 0xba, 0x49e: 0xba, 0x49f: 0xba,
+	0x4a0: 0xba, 0x4a1: 0xba, 0x4a2: 0xba, 0x4a3: 0xba, 0x4a4: 0xba, 0x4a5: 0xba, 0x4a6: 0xba, 0x4a7: 0xba,
+	0x4a8: 0xba, 0x4a9: 0xba, 0x4aa: 0xba, 0x4ab: 0xba, 0x4ac: 0xba, 0x4ad: 0xba, 0x4ae: 0xba, 0x4af: 0xba,
+	0x4b0: 0xba, 0x4b1: 0xba, 0x4b2: 0xba, 0x4b3: 0xba, 0x4b4: 0xba, 0x4b5: 0xba, 0x4b6: 0xba, 0x4b7: 0xba,
+	0x4b8: 0xba, 0x4b9: 0xba, 0x4ba: 0xba, 0x4bb: 0xba, 0x4bc: 0xba, 0x4bd: 0xba, 0x4be: 0xba, 0x4bf: 0xba,
+	// Block 0x13, offset 0x4c0
+	0x4c0: 0xba, 0x4c1: 0xba, 0x4c2: 0xba, 0x4c3: 0xba, 0x4c4: 0xba, 0x4c5: 0xba, 0x4c6: 0xba, 0x4c7: 0xba,
+	0x4c8: 0xba, 0x4c9: 0xba, 0x4ca: 0xba, 0x4cb: 0xba, 0x4cc: 0xba, 0x4cd: 0xba, 0x4ce: 0xba, 0x4cf: 0xba,
+	0x4d0: 0x9f, 0x4d1: 0x9f, 0x4d2: 0x9f, 0x4d3: 0x9f, 0x4d4: 0x9f, 0x4d5: 0x9f, 0x4d6: 0x9f, 0x4d7: 0x9f,
+	0x4d8: 0x9f, 0x4d9: 0x155, 0x4da: 0xba, 0x4db: 0xba, 0x4dc: 0xba, 0x4dd: 0xba, 0x4de: 0xba, 0x4df: 0xba,
+	0x4e0: 0xba, 0x4e1: 0xba, 0x4e2: 0xba, 0x4e3: 0xba, 0x4e4: 0xba, 0x4e5: 0xba, 0x4e6: 0xba, 0x4e7: 0xba,
+	0x4e8: 0xba, 0x4e9: 0xba, 0x4ea: 0xba, 0x4eb: 0xba, 0x4ec: 0xba, 0x4ed: 0xba, 0x4ee: 0xba, 0x4ef: 0xba,
+	0x4f0: 0xba, 0x4f1: 0xba, 0x4f2: 0xba, 0x4f3: 0xba, 0x4f4: 0xba, 0x4f5: 0xba, 0x4f6: 0xba, 0x4f7: 0xba,
+	0x4f8: 0xba, 0x4f9: 0xba, 0x4fa: 0xba, 0x4fb: 0xba, 0x4fc: 0xba, 0x4fd: 0xba, 0x4fe: 0xba, 0x4ff: 0xba,
+	// Block 0x14, offset 0x500
+	0x500: 0xba, 0x501: 0xba, 0x502: 0xba, 0x503: 0xba, 0x504: 0xba, 0x505: 0xba, 0x506: 0xba, 0x507: 0xba,
+	0x508: 0xba, 0x509: 0xba, 0x50a: 0xba, 0x50b: 0xba, 0x50c: 0xba, 0x50d: 0xba, 0x50e: 0xba, 0x50f: 0xba,
+	0x510: 0xba, 0x511: 0xba, 0x512: 0xba, 0x513: 0xba, 0x514: 0xba, 0x515: 0xba, 0x516: 0xba, 0x517: 0xba,
+	0x518: 0xba, 0x519: 0xba, 0x51a: 0xba, 0x51b: 0xba, 0x51c: 0xba, 0x51d: 0xba, 0x51e: 0xba, 0x51f: 0xba,
+	0x520: 0x9f, 0x521: 0x9f, 0x522: 0x9f, 0x523: 0x9f, 0x524: 0x9f, 0x525: 0x9f, 0x526: 0x9f, 0x527: 0x9f,
+	0x528: 0x148, 0x529: 0x156, 0x52a: 0xba, 0x52b: 0x157, 0x52c: 0x158, 0x52d: 0x159, 0x52e: 0x15a, 0x52f: 0xba,
+	0x530: 0xba, 0x531: 0xba, 0x532: 0xba, 0x533: 0xba, 0x534: 0xba, 0x535: 0xba, 0x536: 0xba, 0x537: 0xba,
+	0x538: 0xba, 0x539: 0x15b, 0x53a: 0x15c, 0x53b: 0xba, 0x53c: 0x9f, 0x53d: 0x15d, 0x53e: 0x15e, 0x53f: 0x15f,
+	// Block 0x15, offset 0x540
+	0x540: 0x9f, 0x541: 0x9f, 0x542: 0x9f, 0x543: 0x9f, 0x544: 0x9f, 0x545: 0x9f, 0x546: 0x9f, 0x547: 0x9f,
+	0x548: 0x9f, 0x549: 0x9f, 0x54a: 0x9f, 0x54b: 0x9f, 0x54c: 0x9f, 0x54d: 0x9f, 0x54e: 0x9f, 0x54f: 0x9f,
+	0x550: 0x9f, 0x551: 0x9f, 0x552: 0x9f, 0x553: 0x9f, 0x554: 0x9f, 0x555: 0x9f, 0x556: 0x9f, 0x557: 0x9f,
+	0x558: 0x9f, 0x559: 0x9f, 0x55a: 0x9f, 0x55b: 0x9f, 0x55c: 0x9f, 0x55d: 0x9f, 0x55e: 0x9f, 0x55f: 0x160,
+	0x560: 0x9f, 0x561: 0x9f, 0x562: 0x9f, 0x563: 0x9f, 0x564: 0x9f, 0x565: 0x9f, 0x566: 0x9f, 0x567: 0x9f,
+	0x568: 0x9f, 0x569: 0x9f, 0x56a: 0x9f, 0x56b: 0x161, 0x56c: 0xba, 0x56d: 0xba, 0x56e: 0xba, 0x56f: 0xba,
+	0x570: 0xba, 0x571: 0xba, 0x572: 0xba, 0x573: 0xba, 0x574: 0xba, 0x575: 0xba, 0x576: 0xba, 0x577: 0xba,
+	0x578: 0xba, 0x579: 0xba, 0x57a: 0xba, 0x57b: 0xba, 0x57c: 0xba, 0x57d: 0xba, 0x57e: 0xba, 0x57f: 0xba,
+	// Block 0x16, offset 0x580
+	0x580: 0x9f, 0x581: 0x9f, 0x582: 0x9f, 0x583: 0x9f, 0x584: 0x162, 0x585: 0x163, 0x586: 0x9f, 0x587: 0x9f,
+	0x588: 0x9f, 0x589: 0x9f, 0x58a: 0x9f, 0x58b: 0x164, 0x58c: 0xba, 0x58d: 0xba, 0x58e: 0xba, 0x58f: 0xba,
+	0x590: 0xba, 0x591: 0xba, 0x592: 0xba, 0x593: 0xba, 0x594: 0xba, 0x595: 0xba, 0x596: 0xba, 0x597: 0xba,
+	0x598: 0xba, 0x599: 0xba, 0x59a: 0xba, 0x59b: 0xba, 0x59c: 0xba, 0x59d: 0xba, 0x59e: 0xba, 0x59f: 0xba,
+	0x5a0: 0xba, 0x5a1: 0xba, 0x5a2: 0xba, 0x5a3: 0xba, 0x5a4: 0xba, 0x5a5: 0xba, 0x5a6: 0xba, 0x5a7: 0xba,
+	0x5a8: 0xba, 0x5a9: 0xba, 0x5aa: 0xba, 0x5ab: 0xba, 0x5ac: 0xba, 0x5ad: 0xba, 0x5ae: 0xba, 0x5af: 0xba,
+	0x5b0: 0x9f, 0x5b1: 0x165, 0x5b2: 0x166, 0x5b3: 0xba, 0x5b4: 0xba, 0x5b5: 0xba, 0x5b6: 0xba, 0x5b7: 0xba,
+	0x5b8: 0xba, 0x5b9: 0xba, 0x5ba: 0xba, 0x5bb: 0xba, 0x5bc: 0xba, 0x5bd: 0xba, 0x5be: 0xba, 0x5bf: 0xba,
+	// Block 0x17, offset 0x5c0
+	0x5c0: 0x9b, 0x5c1: 0x9b, 0x5c2: 0x9b, 0x5c3: 0x167, 0x5c4: 0x168, 0x5c5: 0x169, 0x5c6: 0x16a, 0x5c7: 0x16b,
+	0x5c8: 0x9b, 0x5c9: 0x16c, 0x5ca: 0xba, 0x5cb: 0x16d, 0x5cc: 0x9b, 0x5cd: 0x16e, 0x5ce: 0xba, 0x5cf: 0xba,
+	0x5d0: 0x5f, 0x5d1: 0x60, 0x5d2: 0x61, 0x5d3: 0x62, 0x5d4: 0x63, 0x5d5: 0x64, 0x5d6: 0x65, 0x5d7: 0x66,
+	0x5d8: 0x67, 0x5d9: 0x68, 0x5da: 0x69, 0x5db: 0x6a, 0x5dc: 0x6b, 0x5dd: 0x6c, 0x5de: 0x6d, 0x5df: 0x6e,
+	0x5e0: 0x9b, 0x5e1: 0x9b, 0x5e2: 0x9b, 0x5e3: 0x9b, 0x5e4: 0x9b, 0x5e5: 0x9b, 0x5e6: 0x9b, 0x5e7: 0x9b,
+	0x5e8: 0x16f, 0x5e9: 0x170, 0x5ea: 0x171, 0x5eb: 0xba, 0x5ec: 0xba, 0x5ed: 0xba, 0x5ee: 0xba, 0x5ef: 0xba,
+	0x5f0: 0xba, 0x5f1: 0xba, 0x5f2: 0xba, 0x5f3: 0xba, 0x5f4: 0xba, 0x5f5: 0xba, 0x5f6: 0xba, 0x5f7: 0xba,
+	0x5f8: 0xba, 0x5f9: 0xba, 0x5fa: 0xba, 0x5fb: 0xba, 0x5fc: 0xba, 0x5fd: 0xba, 0x5fe: 0xba, 0x5ff: 0xba,
+	// Block 0x18, offset 0x600
+	0x600: 0x172, 0x601: 0xba, 0x602: 0xba, 0x603: 0xba, 0x604: 0x173, 0x605: 0x174, 0x606: 0xba, 0x607: 0xba,
+	0x608: 0xba, 0x609: 0xba, 0x60a: 0xba, 0x60b: 0x175, 0x60c: 0xba, 0x60d: 0xba, 0x60e: 0xba, 0x60f: 0xba,
+	0x610: 0xba, 0x611: 0xba, 0x612: 0xba, 0x613: 0xba, 0x614: 0xba, 0x615: 0xba, 0x616: 0xba, 0x617: 0xba,
+	0x618: 0xba, 0x619: 0xba, 0x61a: 0xba, 0x61b: 0xba, 0x61c: 0xba, 0x61d: 0xba, 0x61e: 0xba, 0x61f: 0xba,
+	0x620: 0x121, 0x621: 0x121, 0x622: 0x121, 0x623: 0x176, 0x624: 0x6f, 0x625: 0x177, 0x626: 0xba, 0x627: 0xba,
+	0x628: 0xba, 0x629: 0xba, 0x62a: 0xba, 0x62b: 0xba, 0x62c: 0xba, 0x62d: 0xba, 0x62e: 0xba, 0x62f: 0xba,
+	0x630: 0xba, 0x631: 0x178, 0x632: 0x179, 0x633: 0xba, 0x634: 0x17a, 0x635: 0xba, 0x636: 0xba, 0x637: 0xba,
+	0x638: 0x70, 0x639: 0x71, 0x63a: 0x72, 0x63b: 0x17b, 0x63c: 0xba, 0x63d: 0xba, 0x63e: 0xba, 0x63f: 0xba,
+	// Block 0x19, offset 0x640
+	0x640: 0x17c, 0x641: 0x9b, 0x642: 0x17d, 0x643: 0x17e, 0x644: 0x73, 0x645: 0x74, 0x646: 0x17f, 0x647: 0x180,
+	0x648: 0x75, 0x649: 0x181, 0x64a: 0xba, 0x64b: 0xba, 0x64c: 0x9b, 0x64d: 0x9b, 0x64e: 0x9b, 0x64f: 0x9b,
+	0x650: 0x9b, 0x651: 0x9b, 0x652: 0x9b, 0x653: 0x9b, 0x654: 0x9b, 0x655: 0x9b, 0x656: 0x9b, 0x657: 0x9b,
+	0x658: 0x9b, 0x659: 0x9b, 0x65a: 0x9b, 0x65b: 0x182, 0x65c: 0x9b, 0x65d: 0x183, 0x65e: 0x9b, 0x65f: 0x184,
+	0x660: 0x185, 0x661: 0x186, 0x662: 0x187, 0x663: 0xba, 0x664: 0x188, 0x665: 0x189, 0x666: 0x18a, 0x667: 0x18b,
+	0x668: 0x9b, 0x669: 0x18c, 0x66a: 0x18d, 0x66b: 0xba, 0x66c: 0xba, 0x66d: 0xba, 0x66e: 0xba, 0x66f: 0xba,
+	0x670: 0xba, 0x671: 0xba, 0x672: 0xba, 0x673: 0xba, 0x674: 0xba, 0x675: 0xba, 0x676: 0xba, 0x677: 0xba,
+	0x678: 0xba, 0x679: 0xba, 0x67a: 0xba, 0x67b: 0xba, 0x67c: 0xba, 0x67d: 0xba, 0x67e: 0xba, 0x67f: 0xba,
+	// Block 0x1a, offset 0x680
+	0x680: 0x9f, 0x681: 0x9f, 0x682: 0x9f, 0x683: 0x9f, 0x684: 0x9f, 0x685: 0x9f, 0x686: 0x9f, 0x687: 0x9f,
+	0x688: 0x9f, 0x689: 0x9f, 0x68a: 0x9f, 0x68b: 0x9f, 0x68c: 0x9f, 0x68d: 0x9f, 0x68e: 0x9f, 0x68f: 0x9f,
+	0x690: 0x9f, 0x691: 0x9f, 0x692: 0x9f, 0x693: 0x9f, 0x694: 0x9f, 0x695: 0x9f, 0x696: 0x9f, 0x697: 0x9f,
+	0x698: 0x9f, 0x699: 0x9f, 0x69a: 0x9f, 0x69b: 0x18e, 0x69c: 0x9f, 0x69d: 0x9f, 0x69e: 0x9f, 0x69f: 0x9f,
+	0x6a0: 0x9f, 0x6a1: 0x9f, 0x6a2: 0x9f, 0x6a3: 0x9f, 0x6a4: 0x9f, 0x6a5: 0x9f, 0x6a6: 0x9f, 0x6a7: 0x9f,
+	0x6a8: 0x9f, 0x6a9: 0x9f, 0x6aa: 0x9f, 0x6ab: 0x9f, 0x6ac: 0x9f, 0x6ad: 0x9f, 0x6ae: 0x9f, 0x6af: 0x9f,
+	0x6b0: 0x9f, 0x6b1: 0x9f, 0x6b2: 0x9f, 0x6b3: 0x9f, 0x6b4: 0x9f, 0x6b5: 0x9f, 0x6b6: 0x9f, 0x6b7: 0x9f,
+	0x6b8: 0x9f, 0x6b9: 0x9f, 0x6ba: 0x9f, 0x6bb: 0x9f, 0x6bc: 0x9f, 0x6bd: 0x9f, 0x6be: 0x9f, 0x6bf: 0x9f,
+	// Block 0x1b, offset 0x6c0
+	0x6c0: 0x9f, 0x6c1: 0x9f, 0x6c2: 0x9f, 0x6c3: 0x9f, 0x6c4: 0x9f, 0x6c5: 0x9f, 0x6c6: 0x9f, 0x6c7: 0x9f,
+	0x6c8: 0x9f, 0x6c9: 0x9f, 0x6ca: 0x9f, 0x6cb: 0x9f, 0x6cc: 0x9f, 0x6cd: 0x9f, 0x6ce: 0x9f, 0x6cf: 0x9f,
+	0x6d0: 0x9f, 0x6d1: 0x9f, 0x6d2: 0x9f, 0x6d3: 0x9f, 0x6d4: 0x9f, 0x6d5: 0x9f, 0x6d6: 0x9f, 0x6d7: 0x9f,
+	0x6d8: 0x9f, 0x6d9: 0x9f, 0x6da: 0x9f, 0x6db: 0x9f, 0x6dc: 0x18f, 0x6dd: 0x9f, 0x6de: 0x9f, 0x6df: 0x9f,
+	0x6e0: 0x190, 0x6e1: 0x9f, 0x6e2: 0x9f, 0x6e3: 0x9f, 0x6e4: 0x9f, 0x6e5: 0x9f, 0x6e6: 0x9f, 0x6e7: 0x9f,
+	0x6e8: 0x9f, 0x6e9: 0x9f, 0x6ea: 0x9f, 0x6eb: 0x9f, 0x6ec: 0x9f, 0x6ed: 0x9f, 0x6ee: 0x9f, 0x6ef: 0x9f,
+	0x6f0: 0x9f, 0x6f1: 0x9f, 0x6f2: 0x9f, 0x6f3: 0x9f, 0x6f4: 0x9f, 0x6f5: 0x9f, 0x6f6: 0x9f, 0x6f7: 0x9f,
+	0x6f8: 0x9f, 0x6f9: 0x9f, 0x6fa: 0x9f, 0x6fb: 0x9f, 0x6fc: 0x9f, 0x6fd: 0x9f, 0x6fe: 0x9f, 0x6ff: 0x9f,
+	// Block 0x1c, offset 0x700
+	0x700: 0x9f, 0x701: 0x9f, 0x702: 0x9f, 0x703: 0x9f, 0x704: 0x9f, 0x705: 0x9f, 0x706: 0x9f, 0x707: 0x9f,
+	0x708: 0x9f, 0x709: 0x9f, 0x70a: 0x9f, 0x70b: 0x9f, 0x70c: 0x9f, 0x70d: 0x9f, 0x70e: 0x9f, 0x70f: 0x9f,
+	0x710: 0x9f, 0x711: 0x9f, 0x712: 0x9f, 0x713: 0x9f, 0x714: 0x9f, 0x715: 0x9f, 0x716: 0x9f, 0x717: 0x9f,
+	0x718: 0x9f, 0x719: 0x9f, 0x71a: 0x9f, 0x71b: 0x9f, 0x71c: 0x9f, 0x71d: 0x9f, 0x71e: 0x9f, 0x71f: 0x9f,
+	0x720: 0x9f, 0x721: 0x9f, 0x722: 0x9f, 0x723: 0x9f, 0x724: 0x9f, 0x725: 0x9f, 0x726: 0x9f, 0x727: 0x9f,
+	0x728: 0x9f, 0x729: 0x9f, 0x72a: 0x9f, 0x72b: 0x9f, 0x72c: 0x9f, 0x72d: 0x9f, 0x72e: 0x9f, 0x72f: 0x9f,
+	0x730: 0x9f, 0x731: 0x9f, 0x732: 0x9f, 0x733: 0x9f, 0x734: 0x9f, 0x735: 0x9f, 0x736: 0x9f, 0x737: 0x9f,
+	0x738: 0x9f, 0x739: 0x9f, 0x73a: 0x191, 0x73b: 0x9f, 0x73c: 0x9f, 0x73d: 0x9f, 0x73e: 0x9f, 0x73f: 0x9f,
+	// Block 0x1d, offset 0x740
+	0x740: 0x9f, 0x741: 0x9f, 0x742: 0x9f, 0x743: 0x9f, 0x744: 0x9f, 0x745: 0x9f, 0x746: 0x9f, 0x747: 0x9f,
+	0x748: 0x9f, 0x749: 0x9f, 0x74a: 0x9f, 0x74b: 0x9f, 0x74c: 0x9f, 0x74d: 0x9f, 0x74e: 0x9f, 0x74f: 0x9f,
+	0x750: 0x9f, 0x751: 0x9f, 0x752: 0x9f, 0x753: 0x9f, 0x754: 0x9f, 0x755: 0x9f, 0x756: 0x9f, 0x757: 0x9f,
+	0x758: 0x9f, 0x759: 0x9f, 0x75a: 0x9f, 0x75b: 0x9f, 0x75c: 0x9f, 0x75d: 0x9f, 0x75e: 0x9f, 0x75f: 0x9f,
+	0x760: 0x9f, 0x761: 0x9f, 0x762: 0x9f, 0x763: 0x9f, 0x764: 0x9f, 0x765: 0x9f, 0x766: 0x9f, 0x767: 0x9f,
+	0x768: 0x9f, 0x769: 0x9f, 0x76a: 0x9f, 0x76b: 0x9f, 0x76c: 0x9f, 0x76d: 0x9f, 0x76e: 0x9f, 0x76f: 0x192,
+	0x770: 0xba, 0x771: 0xba, 0x772: 0xba, 0x773: 0xba, 0x774: 0xba, 0x775: 0xba, 0x776: 0xba, 0x777: 0xba,
+	0x778: 0xba, 0x779: 0xba, 0x77a: 0xba, 0x77b: 0xba, 0x77c: 0xba, 0x77d: 0xba, 0x77e: 0xba, 0x77f: 0xba,
+	// Block 0x1e, offset 0x780
+	0x780: 0xba, 0x781: 0xba, 0x782: 0xba, 0x783: 0xba, 0x784: 0xba, 0x785: 0xba, 0x786: 0xba, 0x787: 0xba,
+	0x788: 0xba, 0x789: 0xba, 0x78a: 0xba, 0x78b: 0xba, 0x78c: 0xba, 0x78d: 0xba, 0x78e: 0xba, 0x78f: 0xba,
+	0x790: 0xba, 0x791: 0xba, 0x792: 0xba, 0x793: 0xba, 0x794: 0xba, 0x795: 0xba, 0x796: 0xba, 0x797: 0xba,
+	0x798: 0xba, 0x799: 0xba, 0x79a: 0xba, 0x79b: 0xba, 0x79c: 0xba, 0x79d: 0xba, 0x79e: 0xba, 0x79f: 0xba,
+	0x7a0: 0x76, 0x7a1: 0x77, 0x7a2: 0x78, 0x7a3: 0x193, 0x7a4: 0x79, 0x7a5: 0x7a, 0x7a6: 0x194, 0x7a7: 0x7b,
+	0x7a8: 0x7c, 0x7a9: 0xba, 0x7aa: 0xba, 0x7ab: 0xba, 0x7ac: 0xba, 0x7ad: 0xba, 0x7ae: 0xba, 0x7af: 0xba,
+	0x7b0: 0xba, 0x7b1: 0xba, 0x7b2: 0xba, 0x7b3: 0xba, 0x7b4: 0xba, 0x7b5: 0xba, 0x7b6: 0xba, 0x7b7: 0xba,
+	0x7b8: 0xba, 0x7b9: 0xba, 0x7ba: 0xba, 0x7bb: 0xba, 0x7bc: 0xba, 0x7bd: 0xba, 0x7be: 0xba, 0x7bf: 0xba,
+	// Block 0x1f, offset 0x7c0
+	0x7d0: 0x0d, 0x7d1: 0x0e, 0x7d2: 0x0f, 0x7d3: 0x10, 0x7d4: 0x11, 0x7d5: 0x0b, 0x7d6: 0x12, 0x7d7: 0x07,
+	0x7d8: 0x13, 0x7d9: 0x0b, 0x7da: 0x0b, 0x7db: 0x14, 0x7dc: 0x0b, 0x7dd: 0x15, 0x7de: 0x16, 0x7df: 0x17,
+	0x7e0: 0x07, 0x7e1: 0x07, 0x7e2: 0x07, 0x7e3: 0x07, 0x7e4: 0x07, 0x7e5: 0x07, 0x7e6: 0x07, 0x7e7: 0x07,
+	0x7e8: 0x07, 0x7e9: 0x07, 0x7ea: 0x18, 0x7eb: 0x19, 0x7ec: 0x1a, 0x7ed: 0x07, 0x7ee: 0x1b, 0x7ef: 0x1c,
+	0x7f0: 0x0b, 0x7f1: 0x0b, 0x7f2: 0x0b, 0x7f3: 0x0b, 0x7f4: 0x0b, 0x7f5: 0x0b, 0x7f6: 0x0b, 0x7f7: 0x0b,
+	0x7f8: 0x0b, 0x7f9: 0x0b, 0x7fa: 0x0b, 0x7fb: 0x0b, 0x7fc: 0x0b, 0x7fd: 0x0b, 0x7fe: 0x0b, 0x7ff: 0x0b,
+	// Block 0x20, offset 0x800
+	0x800: 0x0b, 0x801: 0x0b, 0x802: 0x0b, 0x803: 0x0b, 0x804: 0x0b, 0x805: 0x0b, 0x806: 0x0b, 0x807: 0x0b,
+	0x808: 0x0b, 0x809: 0x0b, 0x80a: 0x0b, 0x80b: 0x0b, 0x80c: 0x0b, 0x80d: 0x0b, 0x80e: 0x0b, 0x80f: 0x0b,
+	0x810: 0x0b, 0x811: 0x0b, 0x812: 0x0b, 0x813: 0x0b, 0x814: 0x0b, 0x815: 0x0b, 0x816: 0x0b, 0x817: 0x0b,
+	0x818: 0x0b, 0x819: 0x0b, 0x81a: 0x0b, 0x81b: 0x0b, 0x81c: 0x0b, 0x81d: 0x0b, 0x81e: 0x0b, 0x81f: 0x0b,
+	0x820: 0x0b, 0x821: 0x0b, 0x822: 0x0b, 0x823: 0x0b, 0x824: 0x0b, 0x825: 0x0b, 0x826: 0x0b, 0x827: 0x0b,
+	0x828: 0x0b, 0x829: 0x0b, 0x82a: 0x0b, 0x82b: 0x0b, 0x82c: 0x0b, 0x82d: 0x0b, 0x82e: 0x0b, 0x82f: 0x0b,
+	0x830: 0x0b, 0x831: 0x0b, 0x832: 0x0b, 0x833: 0x0b, 0x834: 0x0b, 0x835: 0x0b, 0x836: 0x0b, 0x837: 0x0b,
+	0x838: 0x0b, 0x839: 0x0b, 0x83a: 0x0b, 0x83b: 0x0b, 0x83c: 0x0b, 0x83d: 0x0b, 0x83e: 0x0b, 0x83f: 0x0b,
+	// Block 0x21, offset 0x840
+	0x840: 0x195, 0x841: 0x196, 0x842: 0xba, 0x843: 0xba, 0x844: 0x197, 0x845: 0x197, 0x846: 0x197, 0x847: 0x198,
+	0x848: 0xba, 0x849: 0xba, 0x84a: 0xba, 0x84b: 0xba, 0x84c: 0xba, 0x84d: 0xba, 0x84e: 0xba, 0x84f: 0xba,
+	0x850: 0xba, 0x851: 0xba, 0x852: 0xba, 0x853: 0xba, 0x854: 0xba, 0x855: 0xba, 0x856: 0xba, 0x857: 0xba,
+	0x858: 0xba, 0x859: 0xba, 0x85a: 0xba, 0x85b: 0xba, 0x85c: 0xba, 0x85d: 0xba, 0x85e: 0xba, 0x85f: 0xba,
+	0x860: 0xba, 0x861: 0xba, 0x862: 0xba, 0x863: 0xba, 0x864: 0xba, 0x865: 0xba, 0x866: 0xba, 0x867: 0xba,
+	0x868: 0xba, 0x869: 0xba, 0x86a: 0xba, 0x86b: 0xba, 0x86c: 0xba, 0x86d: 0xba, 0x86e: 0xba, 0x86f: 0xba,
+	0x870: 0xba, 0x871: 0xba, 0x872: 0xba, 0x873: 0xba, 0x874: 0xba, 0x875: 0xba, 0x876: 0xba, 0x877: 0xba,
+	0x878: 0xba, 0x879: 0xba, 0x87a: 0xba, 0x87b: 0xba, 0x87c: 0xba, 0x87d: 0xba, 0x87e: 0xba, 0x87f: 0xba,
+	// Block 0x22, offset 0x880
+	0x880: 0x0b, 0x881: 0x0b, 0x882: 0x0b, 0x883: 0x0b, 0x884: 0x0b, 0x885: 0x0b, 0x886: 0x0b, 0x887: 0x0b,
+	0x888: 0x0b, 0x889: 0x0b, 0x88a: 0x0b, 0x88b: 0x0b, 0x88c: 0x0b, 0x88d: 0x0b, 0x88e: 0x0b, 0x88f: 0x0b,
+	0x890: 0x0b, 0x891: 0x0b, 0x892: 0x0b, 0x893: 0x0b, 0x894: 0x0b, 0x895: 0x0b, 0x896: 0x0b, 0x897: 0x0b,
+	0x898: 0x0b, 0x899: 0x0b, 0x89a: 0x0b, 0x89b: 0x0b, 0x89c: 0x0b, 0x89d: 0x0b, 0x89e: 0x0b, 0x89f: 0x0b,
+	0x8a0: 0x1f, 0x8a1: 0x0b, 0x8a2: 0x0b, 0x8a3: 0x0b, 0x8a4: 0x0b, 0x8a5: 0x0b, 0x8a6: 0x0b, 0x8a7: 0x0b,
+	0x8a8: 0x0b, 0x8a9: 0x0b, 0x8aa: 0x0b, 0x8ab: 0x0b, 0x8ac: 0x0b, 0x8ad: 0x0b, 0x8ae: 0x0b, 0x8af: 0x0b,
+	0x8b0: 0x0b, 0x8b1: 0x0b, 0x8b2: 0x0b, 0x8b3: 0x0b, 0x8b4: 0x0b, 0x8b5: 0x0b, 0x8b6: 0x0b, 0x8b7: 0x0b,
+	0x8b8: 0x0b, 0x8b9: 0x0b, 0x8ba: 0x0b, 0x8bb: 0x0b, 0x8bc: 0x0b, 0x8bd: 0x0b, 0x8be: 0x0b, 0x8bf: 0x0b,
+	// Block 0x23, offset 0x8c0
+	0x8c0: 0x0b, 0x8c1: 0x0b, 0x8c2: 0x0b, 0x8c3: 0x0b, 0x8c4: 0x0b, 0x8c5: 0x0b, 0x8c6: 0x0b, 0x8c7: 0x0b,
+	0x8c8: 0x0b, 0x8c9: 0x0b, 0x8ca: 0x0b, 0x8cb: 0x0b, 0x8cc: 0x0b, 0x8cd: 0x0b, 0x8ce: 0x0b, 0x8cf: 0x0b,
+}
+
+// idnaSparseOffset: 284 entries, 568 bytes
+var idnaSparseOffset = []uint16{0x0, 0x8, 0x19, 0x25, 0x27, 0x2c, 0x33, 0x3e, 0x4a, 0x4e, 0x5d, 0x62, 0x6c, 0x78, 0x86, 0x8b, 0x94, 0xa4, 0xb2, 0xbe, 0xca, 0xdb, 0xe5, 0xec, 0xf9, 0x10a, 0x111, 0x11c, 0x12b, 0x139, 0x143, 0x145, 0x14a, 0x14d, 0x150, 0x152, 0x15e, 0x169, 0x171, 0x177, 0x17d, 0x182, 0x187, 0x18a, 0x18e, 0x194, 0x199, 0x1a5, 0x1af, 0x1b5, 0x1c6, 0x1d0, 0x1d3, 0x1db, 0x1de, 0x1eb, 0x1f3, 0x1f7, 0x1fe, 0x206, 0x216, 0x222, 0x224, 0x22e, 0x23a, 0x246, 0x252, 0x25a, 0x25f, 0x26c, 0x27d, 0x281, 0x28c, 0x290, 0x299, 0x2a1, 0x2a7, 0x2ac, 0x2af, 0x2b3, 0x2b9, 0x2bd, 0x2c1, 0x2c5, 0x2cb, 0x2d3, 0x2da, 0x2e5, 0x2ef, 0x2f3, 0x2f6, 0x2fc, 0x300, 0x302, 0x305, 0x307, 0x30a, 0x314, 0x317, 0x326, 0x32a, 0x32f, 0x332, 0x336, 0x33b, 0x340, 0x346, 0x352, 0x361, 0x367, 0x36b, 0x37a, 0x37f, 0x387, 0x391, 0x39c, 0x3a4, 0x3b5, 0x3be, 0x3ce, 0x3db, 0x3e5, 0x3ea, 0x3f7, 0x3fb, 0x400, 0x402, 0x406, 0x408, 0x40c, 0x415, 0x41b, 0x41f, 0x42f, 0x439, 0x43e, 0x441, 0x447, 0x44e, 0x453, 0x457, 0x45d, 0x462, 0x46b, 0x470, 0x476, 0x47d, 0x484, 0x48b, 0x48f, 0x494, 0x497, 0x49c, 0x4a8, 0x4ae, 0x4b3, 0x4ba, 0x4c2, 0x4c7, 0x4cb, 0x4db, 0x4e2, 0x4e6, 0x4ea, 0x4f1, 0x4f3, 0x4f6, 0x4f9, 0x4fd, 0x506, 0x50a, 0x512, 0x51a, 0x51e, 0x524, 0x52d, 0x539, 0x540, 0x549, 0x553, 0x55a, 0x568, 0x575, 0x582, 0x58b, 0x58f, 0x59f, 0x5a7, 0x5b2, 0x5bb, 0x5c1, 0x5c9, 0x5d2, 0x5dd, 0x5e0, 0x5ec, 0x5f5, 0x5f8, 0x5fd, 0x602, 0x60f, 0x61a, 0x623, 0x62d, 0x630, 0x63a, 0x643, 0x64f, 0x65c, 0x669, 0x677, 0x67e, 0x682, 0x685, 0x68a, 0x68d, 0x692, 0x695, 0x69c, 0x6a3, 0x6a7, 0x6b2, 0x6b5, 0x6b8, 0x6bb, 0x6c1, 0x6c7, 0x6cd, 0x6d0, 0x6d3, 0x6d6, 0x6dd, 0x6e0, 0x6e5, 0x6ef, 0x6f2, 0x6f6, 0x705, 0x711, 0x715, 0x71a, 0x71e, 0x723, 0x727, 0x72c, 0x735, 0x740, 0x746, 0x74c, 0x752, 0x758, 0x761, 0x764, 0x767, 0x76b, 0x76f, 0x773, 0x779, 0x77f, 0x784, 0x787, 0x797, 0x79e, 0x7a1, 0x7a6, 0x7aa, 0x7b0, 0x7b5, 0x7b9, 0x7bf, 0x7c5, 0x7c9, 0x7d2, 0x7d7, 0x7da, 0x7dd, 0x7e1, 0x7e5, 0x7e8, 0x7f8, 0x809, 0x80e, 0x810, 0x812}
+
+// idnaSparseValues: 2069 entries, 8276 bytes
+var idnaSparseValues = [2069]valueRange{
+	// Block 0x0, offset 0x0
+	{value: 0x0000, lo: 0x07},
+	{value: 0xe105, lo: 0x80, hi: 0x96},
+	{value: 0x0018, lo: 0x97, hi: 0x97},
+	{value: 0xe105, lo: 0x98, hi: 0x9e},
+	{value: 0x001f, lo: 0x9f, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xb6},
+	{value: 0x0018, lo: 0xb7, hi: 0xb7},
+	{value: 0x0008, lo: 0xb8, hi: 0xbf},
+	// Block 0x1, offset 0x8
+	{value: 0x0000, lo: 0x10},
+	{value: 0x0008, lo: 0x80, hi: 0x80},
+	{value: 0xe01d, lo: 0x81, hi: 0x81},
+	{value: 0x0008, lo: 0x82, hi: 0x82},
+	{value: 0x0335, lo: 0x83, hi: 0x83},
+	{value: 0x034d, lo: 0x84, hi: 0x84},
+	{value: 0x0365, lo: 0x85, hi: 0x85},
+	{value: 0xe00d, lo: 0x86, hi: 0x86},
+	{value: 0x0008, lo: 0x87, hi: 0x87},
+	{value: 0xe00d, lo: 0x88, hi: 0x88},
+	{value: 0x0008, lo: 0x89, hi: 0x89},
+	{value: 0xe00d, lo: 0x8a, hi: 0x8a},
+	{value: 0x0008, lo: 0x8b, hi: 0x8b},
+	{value: 0xe00d, lo: 0x8c, hi: 0x8c},
+	{value: 0x0008, lo: 0x8d, hi: 0x8d},
+	{value: 0xe00d, lo: 0x8e, hi: 0x8e},
+	{value: 0x0008, lo: 0x8f, hi: 0xbf},
+	// Block 0x2, offset 0x19
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0008, lo: 0x80, hi: 0xaf},
+	{value: 0x0249, lo: 0xb0, hi: 0xb0},
+	{value: 0x037d, lo: 0xb1, hi: 0xb1},
+	{value: 0x0259, lo: 0xb2, hi: 0xb2},
+	{value: 0x0269, lo: 0xb3, hi: 0xb3},
+	{value: 0x034d, lo: 0xb4, hi: 0xb4},
+	{value: 0x0395, lo: 0xb5, hi: 0xb5},
+	{value: 0xe1bd, lo: 0xb6, hi: 0xb6},
+	{value: 0x0279, lo: 0xb7, hi: 0xb7},
+	{value: 0x0289, lo: 0xb8, hi: 0xb8},
+	{value: 0x0008, lo: 0xb9, hi: 0xbf},
+	// Block 0x3, offset 0x25
+	{value: 0x0000, lo: 0x01},
+	{value: 0x3308, lo: 0x80, hi: 0xbf},
+	// Block 0x4, offset 0x27
+	{value: 0x0000, lo: 0x04},
+	{value: 0x03f5, lo: 0x80, hi: 0x8f},
+	{value: 0xe105, lo: 0x90, hi: 0x9f},
+	{value: 0x049d, lo: 0xa0, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0x5, offset 0x2c
+	{value: 0x0000, lo: 0x06},
+	{value: 0xe185, lo: 0x80, hi: 0x8f},
+	{value: 0x0545, lo: 0x90, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0x98},
+	{value: 0x0008, lo: 0x99, hi: 0x99},
+	{value: 0x0018, lo: 0x9a, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xbf},
+	// Block 0x6, offset 0x33
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x0008, lo: 0x80, hi: 0x86},
+	{value: 0x0401, lo: 0x87, hi: 0x87},
+	{value: 0x0008, lo: 0x88, hi: 0x88},
+	{value: 0x0018, lo: 0x89, hi: 0x8a},
+	{value: 0x0040, lo: 0x8b, hi: 0x8c},
+	{value: 0x0018, lo: 0x8d, hi: 0x8f},
+	{value: 0x0040, lo: 0x90, hi: 0x90},
+	{value: 0x3308, lo: 0x91, hi: 0xbd},
+	{value: 0x0818, lo: 0xbe, hi: 0xbe},
+	{value: 0x3308, lo: 0xbf, hi: 0xbf},
+	// Block 0x7, offset 0x3e
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0818, lo: 0x80, hi: 0x80},
+	{value: 0x3308, lo: 0x81, hi: 0x82},
+	{value: 0x0818, lo: 0x83, hi: 0x83},
+	{value: 0x3308, lo: 0x84, hi: 0x85},
+	{value: 0x0818, lo: 0x86, hi: 0x86},
+	{value: 0x3308, lo: 0x87, hi: 0x87},
+	{value: 0x0040, lo: 0x88, hi: 0x8f},
+	{value: 0x0808, lo: 0x90, hi: 0xaa},
+	{value: 0x0040, lo: 0xab, hi: 0xae},
+	{value: 0x0808, lo: 0xaf, hi: 0xb4},
+	{value: 0x0040, lo: 0xb5, hi: 0xbf},
+	// Block 0x8, offset 0x4a
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0a08, lo: 0x80, hi: 0x87},
+	{value: 0x0c08, lo: 0x88, hi: 0x99},
+	{value: 0x0a08, lo: 0x9a, hi: 0xbf},
+	// Block 0x9, offset 0x4e
+	{value: 0x0000, lo: 0x0e},
+	{value: 0x3308, lo: 0x80, hi: 0x8a},
+	{value: 0x0040, lo: 0x8b, hi: 0x8c},
+	{value: 0x0c08, lo: 0x8d, hi: 0x8d},
+	{value: 0x0a08, lo: 0x8e, hi: 0x98},
+	{value: 0x0c08, lo: 0x99, hi: 0x9b},
+	{value: 0x0a08, lo: 0x9c, hi: 0xaa},
+	{value: 0x0c08, lo: 0xab, hi: 0xac},
+	{value: 0x0a08, lo: 0xad, hi: 0xb0},
+	{value: 0x0c08, lo: 0xb1, hi: 0xb1},
+	{value: 0x0a08, lo: 0xb2, hi: 0xb2},
+	{value: 0x0c08, lo: 0xb3, hi: 0xb4},
+	{value: 0x0a08, lo: 0xb5, hi: 0xb7},
+	{value: 0x0c08, lo: 0xb8, hi: 0xb9},
+	{value: 0x0a08, lo: 0xba, hi: 0xbf},
+	// Block 0xa, offset 0x5d
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0808, lo: 0x80, hi: 0xa5},
+	{value: 0x3308, lo: 0xa6, hi: 0xb0},
+	{value: 0x0808, lo: 0xb1, hi: 0xb1},
+	{value: 0x0040, lo: 0xb2, hi: 0xbf},
+	// Block 0xb, offset 0x62
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0808, lo: 0x80, hi: 0x89},
+	{value: 0x0a08, lo: 0x8a, hi: 0xaa},
+	{value: 0x3308, lo: 0xab, hi: 0xb3},
+	{value: 0x0808, lo: 0xb4, hi: 0xb5},
+	{value: 0x0018, lo: 0xb6, hi: 0xb9},
+	{value: 0x0818, lo: 0xba, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbc},
+	{value: 0x3308, lo: 0xbd, hi: 0xbd},
+	{value: 0x0818, lo: 0xbe, hi: 0xbf},
+	// Block 0xc, offset 0x6c
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0808, lo: 0x80, hi: 0x95},
+	{value: 0x3308, lo: 0x96, hi: 0x99},
+	{value: 0x0808, lo: 0x9a, hi: 0x9a},
+	{value: 0x3308, lo: 0x9b, hi: 0xa3},
+	{value: 0x0808, lo: 0xa4, hi: 0xa4},
+	{value: 0x3308, lo: 0xa5, hi: 0xa7},
+	{value: 0x0808, lo: 0xa8, hi: 0xa8},
+	{value: 0x3308, lo: 0xa9, hi: 0xad},
+	{value: 0x0040, lo: 0xae, hi: 0xaf},
+	{value: 0x0818, lo: 0xb0, hi: 0xbe},
+	{value: 0x0040, lo: 0xbf, hi: 0xbf},
+	// Block 0xd, offset 0x78
+	{value: 0x0000, lo: 0x0d},
+	{value: 0x0040, lo: 0x80, hi: 0x9f},
+	{value: 0x0a08, lo: 0xa0, hi: 0xa9},
+	{value: 0x0c08, lo: 0xaa, hi: 0xac},
+	{value: 0x0808, lo: 0xad, hi: 0xad},
+	{value: 0x0c08, lo: 0xae, hi: 0xae},
+	{value: 0x0a08, lo: 0xaf, hi: 0xb0},
+	{value: 0x0c08, lo: 0xb1, hi: 0xb2},
+	{value: 0x0a08, lo: 0xb3, hi: 0xb4},
+	{value: 0x0040, lo: 0xb5, hi: 0xb5},
+	{value: 0x0a08, lo: 0xb6, hi: 0xb8},
+	{value: 0x0c08, lo: 0xb9, hi: 0xb9},
+	{value: 0x0a08, lo: 0xba, hi: 0xbd},
+	{value: 0x0040, lo: 0xbe, hi: 0xbf},
+	// Block 0xe, offset 0x86
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0040, lo: 0x80, hi: 0x92},
+	{value: 0x3308, lo: 0x93, hi: 0xa1},
+	{value: 0x0840, lo: 0xa2, hi: 0xa2},
+	{value: 0x3308, lo: 0xa3, hi: 0xbf},
+	// Block 0xf, offset 0x8b
+	{value: 0x0000, lo: 0x08},
+	{value: 0x3308, lo: 0x80, hi: 0x82},
+	{value: 0x3008, lo: 0x83, hi: 0x83},
+	{value: 0x0008, lo: 0x84, hi: 0xb9},
+	{value: 0x3308, lo: 0xba, hi: 0xba},
+	{value: 0x3008, lo: 0xbb, hi: 0xbb},
+	{value: 0x3308, lo: 0xbc, hi: 0xbc},
+	{value: 0x0008, lo: 0xbd, hi: 0xbd},
+	{value: 0x3008, lo: 0xbe, hi: 0xbf},
+	// Block 0x10, offset 0x94
+	{value: 0x0000, lo: 0x0f},
+	{value: 0x3308, lo: 0x80, hi: 0x80},
+	{value: 0x3008, lo: 0x81, hi: 0x82},
+	{value: 0x0040, lo: 0x83, hi: 0x85},
+	{value: 0x3008, lo: 0x86, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0x89},
+	{value: 0x3008, lo: 0x8a, hi: 0x8c},
+	{value: 0x3b08, lo: 0x8d, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x90},
+	{value: 0x0040, lo: 0x91, hi: 0x96},
+	{value: 0x3008, lo: 0x97, hi: 0x97},
+	{value: 0x0040, lo: 0x98, hi: 0xa5},
+	{value: 0x0008, lo: 0xa6, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbf},
+	// Block 0x11, offset 0xa4
+	{value: 0x0000, lo: 0x0d},
+	{value: 0x3308, lo: 0x80, hi: 0x80},
+	{value: 0x3008, lo: 0x81, hi: 0x83},
+	{value: 0x3308, lo: 0x84, hi: 0x84},
+	{value: 0x0008, lo: 0x85, hi: 0x8c},
+	{value: 0x0040, lo: 0x8d, hi: 0x8d},
+	{value: 0x0008, lo: 0x8e, hi: 0x90},
+	{value: 0x0040, lo: 0x91, hi: 0x91},
+	{value: 0x0008, lo: 0x92, hi: 0xa8},
+	{value: 0x0040, lo: 0xa9, hi: 0xa9},
+	{value: 0x0008, lo: 0xaa, hi: 0xb9},
+	{value: 0x0040, lo: 0xba, hi: 0xbc},
+	{value: 0x0008, lo: 0xbd, hi: 0xbd},
+	{value: 0x3308, lo: 0xbe, hi: 0xbf},
+	// Block 0x12, offset 0xb2
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x3308, lo: 0x80, hi: 0x81},
+	{value: 0x3008, lo: 0x82, hi: 0x83},
+	{value: 0x0040, lo: 0x84, hi: 0x84},
+	{value: 0x0008, lo: 0x85, hi: 0x8c},
+	{value: 0x0040, lo: 0x8d, hi: 0x8d},
+	{value: 0x0008, lo: 0x8e, hi: 0x90},
+	{value: 0x0040, lo: 0x91, hi: 0x91},
+	{value: 0x0008, lo: 0x92, hi: 0xba},
+	{value: 0x3b08, lo: 0xbb, hi: 0xbc},
+	{value: 0x0008, lo: 0xbd, hi: 0xbd},
+	{value: 0x3008, lo: 0xbe, hi: 0xbf},
+	// Block 0x13, offset 0xbe
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0040, lo: 0x80, hi: 0x81},
+	{value: 0x3008, lo: 0x82, hi: 0x83},
+	{value: 0x0040, lo: 0x84, hi: 0x84},
+	{value: 0x0008, lo: 0x85, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0x99},
+	{value: 0x0008, lo: 0x9a, hi: 0xb1},
+	{value: 0x0040, lo: 0xb2, hi: 0xb2},
+	{value: 0x0008, lo: 0xb3, hi: 0xbb},
+	{value: 0x0040, lo: 0xbc, hi: 0xbc},
+	{value: 0x0008, lo: 0xbd, hi: 0xbd},
+	{value: 0x0040, lo: 0xbe, hi: 0xbf},
+	// Block 0x14, offset 0xca
+	{value: 0x0000, lo: 0x10},
+	{value: 0x0008, lo: 0x80, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x89},
+	{value: 0x3b08, lo: 0x8a, hi: 0x8a},
+	{value: 0x0040, lo: 0x8b, hi: 0x8e},
+	{value: 0x3008, lo: 0x8f, hi: 0x91},
+	{value: 0x3308, lo: 0x92, hi: 0x94},
+	{value: 0x0040, lo: 0x95, hi: 0x95},
+	{value: 0x3308, lo: 0x96, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0x97},
+	{value: 0x3008, lo: 0x98, hi: 0x9f},
+	{value: 0x0040, lo: 0xa0, hi: 0xa5},
+	{value: 0x0008, lo: 0xa6, hi: 0xaf},
+	{value: 0x0040, lo: 0xb0, hi: 0xb1},
+	{value: 0x3008, lo: 0xb2, hi: 0xb3},
+	{value: 0x0018, lo: 0xb4, hi: 0xb4},
+	{value: 0x0040, lo: 0xb5, hi: 0xbf},
+	// Block 0x15, offset 0xdb
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0040, lo: 0x80, hi: 0x80},
+	{value: 0x0008, lo: 0x81, hi: 0xb0},
+	{value: 0x3308, lo: 0xb1, hi: 0xb1},
+	{value: 0x0008, lo: 0xb2, hi: 0xb2},
+	{value: 0x08f1, lo: 0xb3, hi: 0xb3},
+	{value: 0x3308, lo: 0xb4, hi: 0xb9},
+	{value: 0x3b08, lo: 0xba, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbe},
+	{value: 0x0018, lo: 0xbf, hi: 0xbf},
+	// Block 0x16, offset 0xe5
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0008, lo: 0x80, hi: 0x86},
+	{value: 0x3308, lo: 0x87, hi: 0x8e},
+	{value: 0x0018, lo: 0x8f, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0018, lo: 0x9a, hi: 0x9b},
+	{value: 0x0040, lo: 0x9c, hi: 0xbf},
+	// Block 0x17, offset 0xec
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x0008, lo: 0x80, hi: 0x84},
+	{value: 0x0040, lo: 0x85, hi: 0x85},
+	{value: 0x0008, lo: 0x86, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x87},
+	{value: 0x3308, lo: 0x88, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9b},
+	{value: 0x0961, lo: 0x9c, hi: 0x9c},
+	{value: 0x0999, lo: 0x9d, hi: 0x9d},
+	{value: 0x0008, lo: 0x9e, hi: 0x9f},
+	{value: 0x0040, lo: 0xa0, hi: 0xbf},
+	// Block 0x18, offset 0xf9
+	{value: 0x0000, lo: 0x10},
+	{value: 0x0008, lo: 0x80, hi: 0x80},
+	{value: 0x0018, lo: 0x81, hi: 0x8a},
+	{value: 0x0008, lo: 0x8b, hi: 0x8b},
+	{value: 0xe03d, lo: 0x8c, hi: 0x8c},
+	{value: 0x0018, lo: 0x8d, hi: 0x97},
+	{value: 0x3308, lo: 0x98, hi: 0x99},
+	{value: 0x0018, lo: 0x9a, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa9},
+	{value: 0x0018, lo: 0xaa, hi: 0xb4},
+	{value: 0x3308, lo: 0xb5, hi: 0xb5},
+	{value: 0x0018, lo: 0xb6, hi: 0xb6},
+	{value: 0x3308, lo: 0xb7, hi: 0xb7},
+	{value: 0x0018, lo: 0xb8, hi: 0xb8},
+	{value: 0x3308, lo: 0xb9, hi: 0xb9},
+	{value: 0x0018, lo: 0xba, hi: 0xbd},
+	{value: 0x3008, lo: 0xbe, hi: 0xbf},
+	// Block 0x19, offset 0x10a
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0018, lo: 0x80, hi: 0x85},
+	{value: 0x3308, lo: 0x86, hi: 0x86},
+	{value: 0x0018, lo: 0x87, hi: 0x8c},
+	{value: 0x0040, lo: 0x8d, hi: 0x8d},
+	{value: 0x0018, lo: 0x8e, hi: 0x9a},
+	{value: 0x0040, lo: 0x9b, hi: 0xbf},
+	// Block 0x1a, offset 0x111
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x0008, lo: 0x80, hi: 0xaa},
+	{value: 0x3008, lo: 0xab, hi: 0xac},
+	{value: 0x3308, lo: 0xad, hi: 0xb0},
+	{value: 0x3008, lo: 0xb1, hi: 0xb1},
+	{value: 0x3308, lo: 0xb2, hi: 0xb7},
+	{value: 0x3008, lo: 0xb8, hi: 0xb8},
+	{value: 0x3b08, lo: 0xb9, hi: 0xba},
+	{value: 0x3008, lo: 0xbb, hi: 0xbc},
+	{value: 0x3308, lo: 0xbd, hi: 0xbe},
+	{value: 0x0008, lo: 0xbf, hi: 0xbf},
+	// Block 0x1b, offset 0x11c
+	{value: 0x0000, lo: 0x0e},
+	{value: 0x0008, lo: 0x80, hi: 0x89},
+	{value: 0x0018, lo: 0x8a, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x95},
+	{value: 0x3008, lo: 0x96, hi: 0x97},
+	{value: 0x3308, lo: 0x98, hi: 0x99},
+	{value: 0x0008, lo: 0x9a, hi: 0x9d},
+	{value: 0x3308, lo: 0x9e, hi: 0xa0},
+	{value: 0x0008, lo: 0xa1, hi: 0xa1},
+	{value: 0x3008, lo: 0xa2, hi: 0xa4},
+	{value: 0x0008, lo: 0xa5, hi: 0xa6},
+	{value: 0x3008, lo: 0xa7, hi: 0xad},
+	{value: 0x0008, lo: 0xae, hi: 0xb0},
+	{value: 0x3308, lo: 0xb1, hi: 0xb4},
+	{value: 0x0008, lo: 0xb5, hi: 0xbf},
+	// Block 0x1c, offset 0x12b
+	{value: 0x0000, lo: 0x0d},
+	{value: 0x0008, lo: 0x80, hi: 0x81},
+	{value: 0x3308, lo: 0x82, hi: 0x82},
+	{value: 0x3008, lo: 0x83, hi: 0x84},
+	{value: 0x3308, lo: 0x85, hi: 0x86},
+	{value: 0x3008, lo: 0x87, hi: 0x8c},
+	{value: 0x3308, lo: 0x8d, hi: 0x8d},
+	{value: 0x0008, lo: 0x8e, hi: 0x8e},
+	{value: 0x3008, lo: 0x8f, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x3008, lo: 0x9a, hi: 0x9c},
+	{value: 0x3308, lo: 0x9d, hi: 0x9d},
+	{value: 0x0018, lo: 0x9e, hi: 0x9f},
+	{value: 0x0040, lo: 0xa0, hi: 0xbf},
+	// Block 0x1d, offset 0x139
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0040, lo: 0x80, hi: 0x86},
+	{value: 0x055d, lo: 0x87, hi: 0x87},
+	{value: 0x0040, lo: 0x88, hi: 0x8c},
+	{value: 0x055d, lo: 0x8d, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0xba},
+	{value: 0x0018, lo: 0xbb, hi: 0xbb},
+	{value: 0xe105, lo: 0xbc, hi: 0xbc},
+	{value: 0x0008, lo: 0xbd, hi: 0xbf},
+	// Block 0x1e, offset 0x143
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0018, lo: 0x80, hi: 0xbf},
+	// Block 0x1f, offset 0x145
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0x9e},
+	{value: 0x0040, lo: 0x9f, hi: 0xa0},
+	{value: 0x2018, lo: 0xa1, hi: 0xb5},
+	{value: 0x0018, lo: 0xb6, hi: 0xbf},
+	// Block 0x20, offset 0x14a
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0018, lo: 0x80, hi: 0xa7},
+	{value: 0x2018, lo: 0xa8, hi: 0xbf},
+	// Block 0x21, offset 0x14d
+	{value: 0x0000, lo: 0x02},
+	{value: 0x2018, lo: 0x80, hi: 0x82},
+	{value: 0x0018, lo: 0x83, hi: 0xbf},
+	// Block 0x22, offset 0x150
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0008, lo: 0x80, hi: 0xbf},
+	// Block 0x23, offset 0x152
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0008, lo: 0x80, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0x89},
+	{value: 0x0008, lo: 0x8a, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0x97},
+	{value: 0x0008, lo: 0x98, hi: 0x98},
+	{value: 0x0040, lo: 0x99, hi: 0x99},
+	{value: 0x0008, lo: 0x9a, hi: 0x9d},
+	{value: 0x0040, lo: 0x9e, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xbf},
+	// Block 0x24, offset 0x15e
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x0008, lo: 0x80, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0x89},
+	{value: 0x0008, lo: 0x8a, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0xb0},
+	{value: 0x0040, lo: 0xb1, hi: 0xb1},
+	{value: 0x0008, lo: 0xb2, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xb7},
+	{value: 0x0008, lo: 0xb8, hi: 0xbe},
+	{value: 0x0040, lo: 0xbf, hi: 0xbf},
+	// Block 0x25, offset 0x169
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0008, lo: 0x80, hi: 0x80},
+	{value: 0x0040, lo: 0x81, hi: 0x81},
+	{value: 0x0008, lo: 0x82, hi: 0x85},
+	{value: 0x0040, lo: 0x86, hi: 0x87},
+	{value: 0x0008, lo: 0x88, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0x97},
+	{value: 0x0008, lo: 0x98, hi: 0xbf},
+	// Block 0x26, offset 0x171
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0008, lo: 0x80, hi: 0x90},
+	{value: 0x0040, lo: 0x91, hi: 0x91},
+	{value: 0x0008, lo: 0x92, hi: 0x95},
+	{value: 0x0040, lo: 0x96, hi: 0x97},
+	{value: 0x0008, lo: 0x98, hi: 0xbf},
+	// Block 0x27, offset 0x177
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0008, lo: 0x80, hi: 0x9a},
+	{value: 0x0040, lo: 0x9b, hi: 0x9c},
+	{value: 0x3308, lo: 0x9d, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xbc},
+	{value: 0x0040, lo: 0xbd, hi: 0xbf},
+	// Block 0x28, offset 0x17d
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0x8f},
+	{value: 0x0018, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xbf},
+	// Block 0x29, offset 0x182
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xb7},
+	{value: 0xe045, lo: 0xb8, hi: 0xbd},
+	{value: 0x0040, lo: 0xbe, hi: 0xbf},
+	// Block 0x2a, offset 0x187
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0018, lo: 0x80, hi: 0x80},
+	{value: 0x0008, lo: 0x81, hi: 0xbf},
+	// Block 0x2b, offset 0x18a
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0008, lo: 0x80, hi: 0xac},
+	{value: 0x0018, lo: 0xad, hi: 0xae},
+	{value: 0x0008, lo: 0xaf, hi: 0xbf},
+	// Block 0x2c, offset 0x18e
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0040, lo: 0x80, hi: 0x80},
+	{value: 0x0008, lo: 0x81, hi: 0x9a},
+	{value: 0x0018, lo: 0x9b, hi: 0x9c},
+	{value: 0x0040, lo: 0x9d, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xbf},
+	// Block 0x2d, offset 0x194
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0xaa},
+	{value: 0x0018, lo: 0xab, hi: 0xb0},
+	{value: 0x0008, lo: 0xb1, hi: 0xb8},
+	{value: 0x0040, lo: 0xb9, hi: 0xbf},
+	// Block 0x2e, offset 0x199
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0008, lo: 0x80, hi: 0x8c},
+	{value: 0x0040, lo: 0x8d, hi: 0x8d},
+	{value: 0x0008, lo: 0x8e, hi: 0x91},
+	{value: 0x3308, lo: 0x92, hi: 0x93},
+	{value: 0x3b08, lo: 0x94, hi: 0x94},
+	{value: 0x0040, lo: 0x95, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xb1},
+	{value: 0x3308, lo: 0xb2, hi: 0xb3},
+	{value: 0x3b08, lo: 0xb4, hi: 0xb4},
+	{value: 0x0018, lo: 0xb5, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xbf},
+	// Block 0x2f, offset 0x1a5
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0008, lo: 0x80, hi: 0x91},
+	{value: 0x3308, lo: 0x92, hi: 0x93},
+	{value: 0x0040, lo: 0x94, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xac},
+	{value: 0x0040, lo: 0xad, hi: 0xad},
+	{value: 0x0008, lo: 0xae, hi: 0xb0},
+	{value: 0x0040, lo: 0xb1, hi: 0xb1},
+	{value: 0x3308, lo: 0xb2, hi: 0xb3},
+	{value: 0x0040, lo: 0xb4, hi: 0xbf},
+	// Block 0x30, offset 0x1af
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0008, lo: 0x80, hi: 0xb3},
+	{value: 0x3340, lo: 0xb4, hi: 0xb5},
+	{value: 0x3008, lo: 0xb6, hi: 0xb6},
+	{value: 0x3308, lo: 0xb7, hi: 0xbd},
+	{value: 0x3008, lo: 0xbe, hi: 0xbf},
+	// Block 0x31, offset 0x1b5
+	{value: 0x0000, lo: 0x10},
+	{value: 0x3008, lo: 0x80, hi: 0x85},
+	{value: 0x3308, lo: 0x86, hi: 0x86},
+	{value: 0x3008, lo: 0x87, hi: 0x88},
+	{value: 0x3308, lo: 0x89, hi: 0x91},
+	{value: 0x3b08, lo: 0x92, hi: 0x92},
+	{value: 0x3308, lo: 0x93, hi: 0x93},
+	{value: 0x0018, lo: 0x94, hi: 0x96},
+	{value: 0x0008, lo: 0x97, hi: 0x97},
+	{value: 0x0018, lo: 0x98, hi: 0x9b},
+	{value: 0x0008, lo: 0x9c, hi: 0x9c},
+	{value: 0x3308, lo: 0x9d, hi: 0x9d},
+	{value: 0x0040, lo: 0x9e, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa9},
+	{value: 0x0040, lo: 0xaa, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xb9},
+	{value: 0x0040, lo: 0xba, hi: 0xbf},
+	// Block 0x32, offset 0x1c6
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0018, lo: 0x80, hi: 0x85},
+	{value: 0x0040, lo: 0x86, hi: 0x86},
+	{value: 0x0218, lo: 0x87, hi: 0x87},
+	{value: 0x0018, lo: 0x88, hi: 0x8a},
+	{value: 0x33c0, lo: 0x8b, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9f},
+	{value: 0x0208, lo: 0xa0, hi: 0xbf},
+	// Block 0x33, offset 0x1d0
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0208, lo: 0x80, hi: 0xb8},
+	{value: 0x0040, lo: 0xb9, hi: 0xbf},
+	// Block 0x34, offset 0x1d3
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0008, lo: 0x80, hi: 0x84},
+	{value: 0x3308, lo: 0x85, hi: 0x86},
+	{value: 0x0208, lo: 0x87, hi: 0xa8},
+	{value: 0x3308, lo: 0xa9, hi: 0xa9},
+	{value: 0x0208, lo: 0xaa, hi: 0xaa},
+	{value: 0x0040, lo: 0xab, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0x35, offset 0x1db
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xbf},
+	// Block 0x36, offset 0x1de
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x0008, lo: 0x80, hi: 0x9e},
+	{value: 0x0040, lo: 0x9f, hi: 0x9f},
+	{value: 0x3308, lo: 0xa0, hi: 0xa2},
+	{value: 0x3008, lo: 0xa3, hi: 0xa6},
+	{value: 0x3308, lo: 0xa7, hi: 0xa8},
+	{value: 0x3008, lo: 0xa9, hi: 0xab},
+	{value: 0x0040, lo: 0xac, hi: 0xaf},
+	{value: 0x3008, lo: 0xb0, hi: 0xb1},
+	{value: 0x3308, lo: 0xb2, hi: 0xb2},
+	{value: 0x3008, lo: 0xb3, hi: 0xb8},
+	{value: 0x3308, lo: 0xb9, hi: 0xbb},
+	{value: 0x0040, lo: 0xbc, hi: 0xbf},
+	// Block 0x37, offset 0x1eb
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0018, lo: 0x80, hi: 0x80},
+	{value: 0x0040, lo: 0x81, hi: 0x83},
+	{value: 0x0018, lo: 0x84, hi: 0x85},
+	{value: 0x0008, lo: 0x86, hi: 0xad},
+	{value: 0x0040, lo: 0xae, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xb4},
+	{value: 0x0040, lo: 0xb5, hi: 0xbf},
+	// Block 0x38, offset 0x1f3
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0008, lo: 0x80, hi: 0xab},
+	{value: 0x0040, lo: 0xac, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0x39, offset 0x1f7
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0008, lo: 0x80, hi: 0x89},
+	{value: 0x0040, lo: 0x8a, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0028, lo: 0x9a, hi: 0x9a},
+	{value: 0x0040, lo: 0x9b, hi: 0x9d},
+	{value: 0x0018, lo: 0x9e, hi: 0xbf},
+	// Block 0x3a, offset 0x1fe
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0008, lo: 0x80, hi: 0x96},
+	{value: 0x3308, lo: 0x97, hi: 0x98},
+	{value: 0x3008, lo: 0x99, hi: 0x9a},
+	{value: 0x3308, lo: 0x9b, hi: 0x9b},
+	{value: 0x0040, lo: 0x9c, hi: 0x9d},
+	{value: 0x0018, lo: 0x9e, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xbf},
+	// Block 0x3b, offset 0x206
+	{value: 0x0000, lo: 0x0f},
+	{value: 0x0008, lo: 0x80, hi: 0x94},
+	{value: 0x3008, lo: 0x95, hi: 0x95},
+	{value: 0x3308, lo: 0x96, hi: 0x96},
+	{value: 0x3008, lo: 0x97, hi: 0x97},
+	{value: 0x3308, lo: 0x98, hi: 0x9e},
+	{value: 0x0040, lo: 0x9f, hi: 0x9f},
+	{value: 0x3b08, lo: 0xa0, hi: 0xa0},
+	{value: 0x3008, lo: 0xa1, hi: 0xa1},
+	{value: 0x3308, lo: 0xa2, hi: 0xa2},
+	{value: 0x3008, lo: 0xa3, hi: 0xa4},
+	{value: 0x3308, lo: 0xa5, hi: 0xac},
+	{value: 0x3008, lo: 0xad, hi: 0xb2},
+	{value: 0x3308, lo: 0xb3, hi: 0xbc},
+	{value: 0x0040, lo: 0xbd, hi: 0xbe},
+	{value: 0x3308, lo: 0xbf, hi: 0xbf},
+	// Block 0x3c, offset 0x216
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0008, lo: 0x80, hi: 0x89},
+	{value: 0x0040, lo: 0x8a, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xa6},
+	{value: 0x0008, lo: 0xa7, hi: 0xa7},
+	{value: 0x0018, lo: 0xa8, hi: 0xad},
+	{value: 0x0040, lo: 0xae, hi: 0xaf},
+	{value: 0x3308, lo: 0xb0, hi: 0xbd},
+	{value: 0x3318, lo: 0xbe, hi: 0xbe},
+	{value: 0x0040, lo: 0xbf, hi: 0xbf},
+	// Block 0x3d, offset 0x222
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0040, lo: 0x80, hi: 0xbf},
+	// Block 0x3e, offset 0x224
+	{value: 0x0000, lo: 0x09},
+	{value: 0x3308, lo: 0x80, hi: 0x83},
+	{value: 0x3008, lo: 0x84, hi: 0x84},
+	{value: 0x0008, lo: 0x85, hi: 0xb3},
+	{value: 0x3308, lo: 0xb4, hi: 0xb4},
+	{value: 0x3008, lo: 0xb5, hi: 0xb5},
+	{value: 0x3308, lo: 0xb6, hi: 0xba},
+	{value: 0x3008, lo: 0xbb, hi: 0xbb},
+	{value: 0x3308, lo: 0xbc, hi: 0xbc},
+	{value: 0x3008, lo: 0xbd, hi: 0xbf},
+	// Block 0x3f, offset 0x22e
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x3008, lo: 0x80, hi: 0x81},
+	{value: 0x3308, lo: 0x82, hi: 0x82},
+	{value: 0x3008, lo: 0x83, hi: 0x83},
+	{value: 0x3808, lo: 0x84, hi: 0x84},
+	{value: 0x0008, lo: 0x85, hi: 0x8b},
+	{value: 0x0040, lo: 0x8c, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0018, lo: 0x9a, hi: 0xaa},
+	{value: 0x3308, lo: 0xab, hi: 0xb3},
+	{value: 0x0018, lo: 0xb4, hi: 0xbc},
+	{value: 0x0040, lo: 0xbd, hi: 0xbf},
+	// Block 0x40, offset 0x23a
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x3308, lo: 0x80, hi: 0x81},
+	{value: 0x3008, lo: 0x82, hi: 0x82},
+	{value: 0x0008, lo: 0x83, hi: 0xa0},
+	{value: 0x3008, lo: 0xa1, hi: 0xa1},
+	{value: 0x3308, lo: 0xa2, hi: 0xa5},
+	{value: 0x3008, lo: 0xa6, hi: 0xa7},
+	{value: 0x3308, lo: 0xa8, hi: 0xa9},
+	{value: 0x3808, lo: 0xaa, hi: 0xaa},
+	{value: 0x3b08, lo: 0xab, hi: 0xab},
+	{value: 0x3308, lo: 0xac, hi: 0xad},
+	{value: 0x0008, lo: 0xae, hi: 0xbf},
+	// Block 0x41, offset 0x246
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0008, lo: 0x80, hi: 0xa5},
+	{value: 0x3308, lo: 0xa6, hi: 0xa6},
+	{value: 0x3008, lo: 0xa7, hi: 0xa7},
+	{value: 0x3308, lo: 0xa8, hi: 0xa9},
+	{value: 0x3008, lo: 0xaa, hi: 0xac},
+	{value: 0x3308, lo: 0xad, hi: 0xad},
+	{value: 0x3008, lo: 0xae, hi: 0xae},
+	{value: 0x3308, lo: 0xaf, hi: 0xb1},
+	{value: 0x3808, lo: 0xb2, hi: 0xb3},
+	{value: 0x0040, lo: 0xb4, hi: 0xbb},
+	{value: 0x0018, lo: 0xbc, hi: 0xbf},
+	// Block 0x42, offset 0x252
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0008, lo: 0x80, hi: 0xa3},
+	{value: 0x3008, lo: 0xa4, hi: 0xab},
+	{value: 0x3308, lo: 0xac, hi: 0xb3},
+	{value: 0x3008, lo: 0xb4, hi: 0xb5},
+	{value: 0x3308, lo: 0xb6, hi: 0xb7},
+	{value: 0x0040, lo: 0xb8, hi: 0xba},
+	{value: 0x0018, lo: 0xbb, hi: 0xbf},
+	// Block 0x43, offset 0x25a
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0x89},
+	{value: 0x0040, lo: 0x8a, hi: 0x8c},
+	{value: 0x0008, lo: 0x8d, hi: 0xbd},
+	{value: 0x0018, lo: 0xbe, hi: 0xbf},
+	// Block 0x44, offset 0x25f
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x0e29, lo: 0x80, hi: 0x80},
+	{value: 0x0e41, lo: 0x81, hi: 0x81},
+	{value: 0x0e59, lo: 0x82, hi: 0x82},
+	{value: 0x0e71, lo: 0x83, hi: 0x83},
+	{value: 0x0e89, lo: 0x84, hi: 0x85},
+	{value: 0x0ea1, lo: 0x86, hi: 0x86},
+	{value: 0x0eb9, lo: 0x87, hi: 0x87},
+	{value: 0x057d, lo: 0x88, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0x8f},
+	{value: 0x059d, lo: 0x90, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbc},
+	{value: 0x059d, lo: 0xbd, hi: 0xbf},
+	// Block 0x45, offset 0x26c
+	{value: 0x0000, lo: 0x10},
+	{value: 0x0018, lo: 0x80, hi: 0x87},
+	{value: 0x0040, lo: 0x88, hi: 0x8f},
+	{value: 0x3308, lo: 0x90, hi: 0x92},
+	{value: 0x0018, lo: 0x93, hi: 0x93},
+	{value: 0x3308, lo: 0x94, hi: 0xa0},
+	{value: 0x3008, lo: 0xa1, hi: 0xa1},
+	{value: 0x3308, lo: 0xa2, hi: 0xa8},
+	{value: 0x0008, lo: 0xa9, hi: 0xac},
+	{value: 0x3308, lo: 0xad, hi: 0xad},
+	{value: 0x0008, lo: 0xae, hi: 0xb3},
+	{value: 0x3308, lo: 0xb4, hi: 0xb4},
+	{value: 0x0008, lo: 0xb5, hi: 0xb6},
+	{value: 0x3008, lo: 0xb7, hi: 0xb7},
+	{value: 0x3308, lo: 0xb8, hi: 0xb9},
+	{value: 0x0008, lo: 0xba, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbf},
+	// Block 0x46, offset 0x27d
+	{value: 0x0000, lo: 0x03},
+	{value: 0x3308, lo: 0x80, hi: 0xb9},
+	{value: 0x0040, lo: 0xba, hi: 0xba},
+	{value: 0x3308, lo: 0xbb, hi: 0xbf},
+	// Block 0x47, offset 0x281
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x0008, lo: 0x80, hi: 0x87},
+	{value: 0xe045, lo: 0x88, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x95},
+	{value: 0x0040, lo: 0x96, hi: 0x97},
+	{value: 0xe045, lo: 0x98, hi: 0x9d},
+	{value: 0x0040, lo: 0x9e, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa7},
+	{value: 0xe045, lo: 0xa8, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xb7},
+	{value: 0xe045, lo: 0xb8, hi: 0xbf},
+	// Block 0x48, offset 0x28c
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0040, lo: 0x80, hi: 0x8f},
+	{value: 0x3318, lo: 0x90, hi: 0xb0},
+	{value: 0x0040, lo: 0xb1, hi: 0xbf},
+	// Block 0x49, offset 0x290
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0018, lo: 0x80, hi: 0x82},
+	{value: 0x0040, lo: 0x83, hi: 0x83},
+	{value: 0x0008, lo: 0x84, hi: 0x84},
+	{value: 0x0018, lo: 0x85, hi: 0x88},
+	{value: 0x24c1, lo: 0x89, hi: 0x89},
+	{value: 0x0018, lo: 0x8a, hi: 0x8b},
+	{value: 0x0040, lo: 0x8c, hi: 0x8f},
+	{value: 0x0018, lo: 0x90, hi: 0xbf},
+	// Block 0x4a, offset 0x299
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0018, lo: 0x80, hi: 0xab},
+	{value: 0x24f1, lo: 0xac, hi: 0xac},
+	{value: 0x2529, lo: 0xad, hi: 0xad},
+	{value: 0x0018, lo: 0xae, hi: 0xae},
+	{value: 0x2579, lo: 0xaf, hi: 0xaf},
+	{value: 0x25b1, lo: 0xb0, hi: 0xb0},
+	{value: 0x0018, lo: 0xb1, hi: 0xbf},
+	// Block 0x4b, offset 0x2a1
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0018, lo: 0x80, hi: 0x9f},
+	{value: 0x0080, lo: 0xa0, hi: 0xa0},
+	{value: 0x0018, lo: 0xa1, hi: 0xad},
+	{value: 0x0080, lo: 0xae, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xbf},
+	// Block 0x4c, offset 0x2a7
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0xa8},
+	{value: 0x09dd, lo: 0xa9, hi: 0xa9},
+	{value: 0x09fd, lo: 0xaa, hi: 0xaa},
+	{value: 0x0018, lo: 0xab, hi: 0xbf},
+	// Block 0x4d, offset 0x2ac
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0018, lo: 0x80, hi: 0xa6},
+	{value: 0x0040, lo: 0xa7, hi: 0xbf},
+	// Block 0x4e, offset 0x2af
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0x8b},
+	{value: 0x28c1, lo: 0x8c, hi: 0x8c},
+	{value: 0x0018, lo: 0x8d, hi: 0xbf},
+	// Block 0x4f, offset 0x2b3
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0018, lo: 0x80, hi: 0xb3},
+	{value: 0x0e7e, lo: 0xb4, hi: 0xb4},
+	{value: 0x292a, lo: 0xb5, hi: 0xb5},
+	{value: 0x0e9e, lo: 0xb6, hi: 0xb6},
+	{value: 0x0018, lo: 0xb7, hi: 0xbf},
+	// Block 0x50, offset 0x2b9
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0x9b},
+	{value: 0x2941, lo: 0x9c, hi: 0x9c},
+	{value: 0x0018, lo: 0x9d, hi: 0xbf},
+	// Block 0x51, offset 0x2bd
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0xb3},
+	{value: 0x0040, lo: 0xb4, hi: 0xb5},
+	{value: 0x0018, lo: 0xb6, hi: 0xbf},
+	// Block 0x52, offset 0x2c1
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0x95},
+	{value: 0x0040, lo: 0x96, hi: 0x97},
+	{value: 0x0018, lo: 0x98, hi: 0xbf},
+	// Block 0x53, offset 0x2c5
+	{value: 0x0000, lo: 0x05},
+	{value: 0xe185, lo: 0x80, hi: 0x8f},
+	{value: 0x03f5, lo: 0x90, hi: 0x9f},
+	{value: 0x0ebd, lo: 0xa0, hi: 0xae},
+	{value: 0x0040, lo: 0xaf, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0x54, offset 0x2cb
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0008, lo: 0x80, hi: 0xa5},
+	{value: 0x0040, lo: 0xa6, hi: 0xa6},
+	{value: 0x0008, lo: 0xa7, hi: 0xa7},
+	{value: 0x0040, lo: 0xa8, hi: 0xac},
+	{value: 0x0008, lo: 0xad, hi: 0xad},
+	{value: 0x0040, lo: 0xae, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0x55, offset 0x2d3
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0008, lo: 0x80, hi: 0xa7},
+	{value: 0x0040, lo: 0xa8, hi: 0xae},
+	{value: 0xe075, lo: 0xaf, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xb0},
+	{value: 0x0040, lo: 0xb1, hi: 0xbe},
+	{value: 0x3b08, lo: 0xbf, hi: 0xbf},
+	// Block 0x56, offset 0x2da
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x0008, lo: 0x80, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa6},
+	{value: 0x0040, lo: 0xa7, hi: 0xa7},
+	{value: 0x0008, lo: 0xa8, hi: 0xae},
+	{value: 0x0040, lo: 0xaf, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xb7},
+	{value: 0x0008, lo: 0xb8, hi: 0xbe},
+	{value: 0x0040, lo: 0xbf, hi: 0xbf},
+	// Block 0x57, offset 0x2e5
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0008, lo: 0x80, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x87},
+	{value: 0x0008, lo: 0x88, hi: 0x8e},
+	{value: 0x0040, lo: 0x8f, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0x97},
+	{value: 0x0008, lo: 0x98, hi: 0x9e},
+	{value: 0x0040, lo: 0x9f, hi: 0x9f},
+	{value: 0x3308, lo: 0xa0, hi: 0xbf},
+	// Block 0x58, offset 0x2ef
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0xae},
+	{value: 0x0008, lo: 0xaf, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xbf},
+	// Block 0x59, offset 0x2f3
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0018, lo: 0x80, hi: 0x8f},
+	{value: 0x0040, lo: 0x90, hi: 0xbf},
+	// Block 0x5a, offset 0x2f6
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0018, lo: 0x80, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9a},
+	{value: 0x0018, lo: 0x9b, hi: 0x9e},
+	{value: 0x0ef5, lo: 0x9f, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xbf},
+	// Block 0x5b, offset 0x2fc
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0xb2},
+	{value: 0x0f15, lo: 0xb3, hi: 0xb3},
+	{value: 0x0040, lo: 0xb4, hi: 0xbf},
+	// Block 0x5c, offset 0x300
+	{value: 0x0020, lo: 0x01},
+	{value: 0x0f35, lo: 0x80, hi: 0xbf},
+	// Block 0x5d, offset 0x302
+	{value: 0x0020, lo: 0x02},
+	{value: 0x1735, lo: 0x80, hi: 0x8f},
+	{value: 0x1915, lo: 0x90, hi: 0xbf},
+	// Block 0x5e, offset 0x305
+	{value: 0x0020, lo: 0x01},
+	{value: 0x1f15, lo: 0x80, hi: 0xbf},
+	// Block 0x5f, offset 0x307
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0040, lo: 0x80, hi: 0x80},
+	{value: 0x0008, lo: 0x81, hi: 0xbf},
+	// Block 0x60, offset 0x30a
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0008, lo: 0x80, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0x98},
+	{value: 0x3308, lo: 0x99, hi: 0x9a},
+	{value: 0x29e2, lo: 0x9b, hi: 0x9b},
+	{value: 0x2a0a, lo: 0x9c, hi: 0x9c},
+	{value: 0x0008, lo: 0x9d, hi: 0x9e},
+	{value: 0x2a31, lo: 0x9f, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xa0},
+	{value: 0x0008, lo: 0xa1, hi: 0xbf},
+	// Block 0x61, offset 0x314
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xbe},
+	{value: 0x2a69, lo: 0xbf, hi: 0xbf},
+	// Block 0x62, offset 0x317
+	{value: 0x0000, lo: 0x0e},
+	{value: 0x0040, lo: 0x80, hi: 0x84},
+	{value: 0x0008, lo: 0x85, hi: 0xaf},
+	{value: 0x0040, lo: 0xb0, hi: 0xb0},
+	{value: 0x2a35, lo: 0xb1, hi: 0xb1},
+	{value: 0x2a55, lo: 0xb2, hi: 0xb2},
+	{value: 0x2a75, lo: 0xb3, hi: 0xb3},
+	{value: 0x2a95, lo: 0xb4, hi: 0xb4},
+	{value: 0x2a75, lo: 0xb5, hi: 0xb5},
+	{value: 0x2ab5, lo: 0xb6, hi: 0xb6},
+	{value: 0x2ad5, lo: 0xb7, hi: 0xb7},
+	{value: 0x2af5, lo: 0xb8, hi: 0xb9},
+	{value: 0x2b15, lo: 0xba, hi: 0xbb},
+	{value: 0x2b35, lo: 0xbc, hi: 0xbd},
+	{value: 0x2b15, lo: 0xbe, hi: 0xbf},
+	// Block 0x63, offset 0x326
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0xa3},
+	{value: 0x0040, lo: 0xa4, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0x64, offset 0x32a
+	{value: 0x0030, lo: 0x04},
+	{value: 0x2aa2, lo: 0x80, hi: 0x9d},
+	{value: 0x305a, lo: 0x9e, hi: 0x9e},
+	{value: 0x0040, lo: 0x9f, hi: 0x9f},
+	{value: 0x30a2, lo: 0xa0, hi: 0xbf},
+	// Block 0x65, offset 0x32f
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xaf},
+	{value: 0x0040, lo: 0xb0, hi: 0xbf},
+	// Block 0x66, offset 0x332
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0008, lo: 0x80, hi: 0x8c},
+	{value: 0x0040, lo: 0x8d, hi: 0x8f},
+	{value: 0x0018, lo: 0x90, hi: 0xbf},
+	// Block 0x67, offset 0x336
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0xbd},
+	{value: 0x0018, lo: 0xbe, hi: 0xbf},
+	// Block 0x68, offset 0x33b
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0x8c},
+	{value: 0x0018, lo: 0x8d, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0xab},
+	{value: 0x0040, lo: 0xac, hi: 0xbf},
+	// Block 0x69, offset 0x340
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0008, lo: 0x80, hi: 0xa5},
+	{value: 0x0018, lo: 0xa6, hi: 0xaf},
+	{value: 0x3308, lo: 0xb0, hi: 0xb1},
+	{value: 0x0018, lo: 0xb2, hi: 0xb7},
+	{value: 0x0040, lo: 0xb8, hi: 0xbf},
+	// Block 0x6a, offset 0x346
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0040, lo: 0x80, hi: 0x81},
+	{value: 0xe00d, lo: 0x82, hi: 0x82},
+	{value: 0x0008, lo: 0x83, hi: 0x83},
+	{value: 0x03f5, lo: 0x84, hi: 0x84},
+	{value: 0x1329, lo: 0x85, hi: 0x85},
+	{value: 0x447d, lo: 0x86, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0xb6},
+	{value: 0x0008, lo: 0xb7, hi: 0xb7},
+	{value: 0x2009, lo: 0xb8, hi: 0xb8},
+	{value: 0x6e89, lo: 0xb9, hi: 0xb9},
+	{value: 0x0008, lo: 0xba, hi: 0xbf},
+	// Block 0x6b, offset 0x352
+	{value: 0x0000, lo: 0x0e},
+	{value: 0x0008, lo: 0x80, hi: 0x81},
+	{value: 0x3308, lo: 0x82, hi: 0x82},
+	{value: 0x0008, lo: 0x83, hi: 0x85},
+	{value: 0x3b08, lo: 0x86, hi: 0x86},
+	{value: 0x0008, lo: 0x87, hi: 0x8a},
+	{value: 0x3308, lo: 0x8b, hi: 0x8b},
+	{value: 0x0008, lo: 0x8c, hi: 0xa2},
+	{value: 0x3008, lo: 0xa3, hi: 0xa4},
+	{value: 0x3308, lo: 0xa5, hi: 0xa6},
+	{value: 0x3008, lo: 0xa7, hi: 0xa7},
+	{value: 0x0018, lo: 0xa8, hi: 0xab},
+	{value: 0x0040, lo: 0xac, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xb9},
+	{value: 0x0040, lo: 0xba, hi: 0xbf},
+	// Block 0x6c, offset 0x361
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0208, lo: 0x80, hi: 0xb1},
+	{value: 0x0108, lo: 0xb2, hi: 0xb2},
+	{value: 0x0008, lo: 0xb3, hi: 0xb3},
+	{value: 0x0018, lo: 0xb4, hi: 0xb7},
+	{value: 0x0040, lo: 0xb8, hi: 0xbf},
+	// Block 0x6d, offset 0x367
+	{value: 0x0000, lo: 0x03},
+	{value: 0x3008, lo: 0x80, hi: 0x81},
+	{value: 0x0008, lo: 0x82, hi: 0xb3},
+	{value: 0x3008, lo: 0xb4, hi: 0xbf},
+	// Block 0x6e, offset 0x36b
+	{value: 0x0000, lo: 0x0e},
+	{value: 0x3008, lo: 0x80, hi: 0x83},
+	{value: 0x3b08, lo: 0x84, hi: 0x84},
+	{value: 0x3308, lo: 0x85, hi: 0x85},
+	{value: 0x0040, lo: 0x86, hi: 0x8d},
+	{value: 0x0018, lo: 0x8e, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9f},
+	{value: 0x3308, lo: 0xa0, hi: 0xb1},
+	{value: 0x0008, lo: 0xb2, hi: 0xb7},
+	{value: 0x0018, lo: 0xb8, hi: 0xba},
+	{value: 0x0008, lo: 0xbb, hi: 0xbb},
+	{value: 0x0018, lo: 0xbc, hi: 0xbc},
+	{value: 0x0008, lo: 0xbd, hi: 0xbe},
+	{value: 0x3308, lo: 0xbf, hi: 0xbf},
+	// Block 0x6f, offset 0x37a
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0xa5},
+	{value: 0x3308, lo: 0xa6, hi: 0xad},
+	{value: 0x0018, lo: 0xae, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0x70, offset 0x37f
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0008, lo: 0x80, hi: 0x86},
+	{value: 0x3308, lo: 0x87, hi: 0x91},
+	{value: 0x3008, lo: 0x92, hi: 0x92},
+	{value: 0x3808, lo: 0x93, hi: 0x93},
+	{value: 0x0040, lo: 0x94, hi: 0x9e},
+	{value: 0x0018, lo: 0x9f, hi: 0xbc},
+	{value: 0x0040, lo: 0xbd, hi: 0xbf},
+	// Block 0x71, offset 0x387
+	{value: 0x0000, lo: 0x09},
+	{value: 0x3308, lo: 0x80, hi: 0x82},
+	{value: 0x3008, lo: 0x83, hi: 0x83},
+	{value: 0x0008, lo: 0x84, hi: 0xb2},
+	{value: 0x3308, lo: 0xb3, hi: 0xb3},
+	{value: 0x3008, lo: 0xb4, hi: 0xb5},
+	{value: 0x3308, lo: 0xb6, hi: 0xb9},
+	{value: 0x3008, lo: 0xba, hi: 0xbb},
+	{value: 0x3308, lo: 0xbc, hi: 0xbd},
+	{value: 0x3008, lo: 0xbe, hi: 0xbf},
+	// Block 0x72, offset 0x391
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x3808, lo: 0x80, hi: 0x80},
+	{value: 0x0018, lo: 0x81, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8e},
+	{value: 0x0008, lo: 0x8f, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9d},
+	{value: 0x0018, lo: 0x9e, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa4},
+	{value: 0x3308, lo: 0xa5, hi: 0xa5},
+	{value: 0x0008, lo: 0xa6, hi: 0xbe},
+	{value: 0x0040, lo: 0xbf, hi: 0xbf},
+	// Block 0x73, offset 0x39c
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0008, lo: 0x80, hi: 0xa8},
+	{value: 0x3308, lo: 0xa9, hi: 0xae},
+	{value: 0x3008, lo: 0xaf, hi: 0xb0},
+	{value: 0x3308, lo: 0xb1, hi: 0xb2},
+	{value: 0x3008, lo: 0xb3, hi: 0xb4},
+	{value: 0x3308, lo: 0xb5, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xbf},
+	// Block 0x74, offset 0x3a4
+	{value: 0x0000, lo: 0x10},
+	{value: 0x0008, lo: 0x80, hi: 0x82},
+	{value: 0x3308, lo: 0x83, hi: 0x83},
+	{value: 0x0008, lo: 0x84, hi: 0x8b},
+	{value: 0x3308, lo: 0x8c, hi: 0x8c},
+	{value: 0x3008, lo: 0x8d, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9b},
+	{value: 0x0018, lo: 0x9c, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xb6},
+	{value: 0x0018, lo: 0xb7, hi: 0xb9},
+	{value: 0x0008, lo: 0xba, hi: 0xba},
+	{value: 0x3008, lo: 0xbb, hi: 0xbb},
+	{value: 0x3308, lo: 0xbc, hi: 0xbc},
+	{value: 0x3008, lo: 0xbd, hi: 0xbd},
+	{value: 0x0008, lo: 0xbe, hi: 0xbf},
+	// Block 0x75, offset 0x3b5
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0008, lo: 0x80, hi: 0xaf},
+	{value: 0x3308, lo: 0xb0, hi: 0xb0},
+	{value: 0x0008, lo: 0xb1, hi: 0xb1},
+	{value: 0x3308, lo: 0xb2, hi: 0xb4},
+	{value: 0x0008, lo: 0xb5, hi: 0xb6},
+	{value: 0x3308, lo: 0xb7, hi: 0xb8},
+	{value: 0x0008, lo: 0xb9, hi: 0xbd},
+	{value: 0x3308, lo: 0xbe, hi: 0xbf},
+	// Block 0x76, offset 0x3be
+	{value: 0x0000, lo: 0x0f},
+	{value: 0x0008, lo: 0x80, hi: 0x80},
+	{value: 0x3308, lo: 0x81, hi: 0x81},
+	{value: 0x0008, lo: 0x82, hi: 0x82},
+	{value: 0x0040, lo: 0x83, hi: 0x9a},
+	{value: 0x0008, lo: 0x9b, hi: 0x9d},
+	{value: 0x0018, lo: 0x9e, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xaa},
+	{value: 0x3008, lo: 0xab, hi: 0xab},
+	{value: 0x3308, lo: 0xac, hi: 0xad},
+	{value: 0x3008, lo: 0xae, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xb1},
+	{value: 0x0008, lo: 0xb2, hi: 0xb4},
+	{value: 0x3008, lo: 0xb5, hi: 0xb5},
+	{value: 0x3b08, lo: 0xb6, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xbf},
+	// Block 0x77, offset 0x3ce
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x0040, lo: 0x80, hi: 0x80},
+	{value: 0x0008, lo: 0x81, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x88},
+	{value: 0x0008, lo: 0x89, hi: 0x8e},
+	{value: 0x0040, lo: 0x8f, hi: 0x90},
+	{value: 0x0008, lo: 0x91, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa6},
+	{value: 0x0040, lo: 0xa7, hi: 0xa7},
+	{value: 0x0008, lo: 0xa8, hi: 0xae},
+	{value: 0x0040, lo: 0xaf, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0x78, offset 0x3db
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0008, lo: 0x80, hi: 0x9a},
+	{value: 0x0018, lo: 0x9b, hi: 0x9b},
+	{value: 0x449d, lo: 0x9c, hi: 0x9c},
+	{value: 0x44b5, lo: 0x9d, hi: 0x9d},
+	{value: 0x2971, lo: 0x9e, hi: 0x9e},
+	{value: 0xe06d, lo: 0x9f, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa7},
+	{value: 0x0040, lo: 0xa8, hi: 0xaf},
+	{value: 0x44cd, lo: 0xb0, hi: 0xbf},
+	// Block 0x79, offset 0x3e5
+	{value: 0x0000, lo: 0x04},
+	{value: 0x44ed, lo: 0x80, hi: 0x8f},
+	{value: 0x450d, lo: 0x90, hi: 0x9f},
+	{value: 0x452d, lo: 0xa0, hi: 0xaf},
+	{value: 0x450d, lo: 0xb0, hi: 0xbf},
+	// Block 0x7a, offset 0x3ea
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x0008, lo: 0x80, hi: 0xa2},
+	{value: 0x3008, lo: 0xa3, hi: 0xa4},
+	{value: 0x3308, lo: 0xa5, hi: 0xa5},
+	{value: 0x3008, lo: 0xa6, hi: 0xa7},
+	{value: 0x3308, lo: 0xa8, hi: 0xa8},
+	{value: 0x3008, lo: 0xa9, hi: 0xaa},
+	{value: 0x0018, lo: 0xab, hi: 0xab},
+	{value: 0x3008, lo: 0xac, hi: 0xac},
+	{value: 0x3b08, lo: 0xad, hi: 0xad},
+	{value: 0x0040, lo: 0xae, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xb9},
+	{value: 0x0040, lo: 0xba, hi: 0xbf},
+	// Block 0x7b, offset 0x3f7
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0008, lo: 0x80, hi: 0xa3},
+	{value: 0x0040, lo: 0xa4, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xbf},
+	// Block 0x7c, offset 0x3fb
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x8a},
+	{value: 0x0018, lo: 0x8b, hi: 0xbb},
+	{value: 0x0040, lo: 0xbc, hi: 0xbf},
+	// Block 0x7d, offset 0x400
+	{value: 0x0020, lo: 0x01},
+	{value: 0x454d, lo: 0x80, hi: 0xbf},
+	// Block 0x7e, offset 0x402
+	{value: 0x0020, lo: 0x03},
+	{value: 0x4d4d, lo: 0x80, hi: 0x94},
+	{value: 0x4b0d, lo: 0x95, hi: 0x95},
+	{value: 0x4fed, lo: 0x96, hi: 0xbf},
+	// Block 0x7f, offset 0x406
+	{value: 0x0020, lo: 0x01},
+	{value: 0x552d, lo: 0x80, hi: 0xbf},
+	// Block 0x80, offset 0x408
+	{value: 0x0020, lo: 0x03},
+	{value: 0x5d2d, lo: 0x80, hi: 0x84},
+	{value: 0x568d, lo: 0x85, hi: 0x85},
+	{value: 0x5dcd, lo: 0x86, hi: 0xbf},
+	// Block 0x81, offset 0x40c
+	{value: 0x0020, lo: 0x08},
+	{value: 0x6b8d, lo: 0x80, hi: 0x8f},
+	{value: 0x6d4d, lo: 0x90, hi: 0x90},
+	{value: 0x6d8d, lo: 0x91, hi: 0xab},
+	{value: 0x6ea1, lo: 0xac, hi: 0xac},
+	{value: 0x70ed, lo: 0xad, hi: 0xad},
+	{value: 0x0040, lo: 0xae, hi: 0xae},
+	{value: 0x0040, lo: 0xaf, hi: 0xaf},
+	{value: 0x710d, lo: 0xb0, hi: 0xbf},
+	// Block 0x82, offset 0x415
+	{value: 0x0020, lo: 0x05},
+	{value: 0x730d, lo: 0x80, hi: 0xad},
+	{value: 0x656d, lo: 0xae, hi: 0xae},
+	{value: 0x78cd, lo: 0xaf, hi: 0xb5},
+	{value: 0x6f8d, lo: 0xb6, hi: 0xb6},
+	{value: 0x79ad, lo: 0xb7, hi: 0xbf},
+	// Block 0x83, offset 0x41b
+	{value: 0x0028, lo: 0x03},
+	{value: 0x7c21, lo: 0x80, hi: 0x82},
+	{value: 0x7be1, lo: 0x83, hi: 0x83},
+	{value: 0x7c99, lo: 0x84, hi: 0xbf},
+	// Block 0x84, offset 0x41f
+	{value: 0x0038, lo: 0x0f},
+	{value: 0x9db1, lo: 0x80, hi: 0x83},
+	{value: 0x9e59, lo: 0x84, hi: 0x85},
+	{value: 0x9e91, lo: 0x86, hi: 0x87},
+	{value: 0x9ec9, lo: 0x88, hi: 0x8f},
+	{value: 0x0040, lo: 0x90, hi: 0x90},
+	{value: 0x0040, lo: 0x91, hi: 0x91},
+	{value: 0xa089, lo: 0x92, hi: 0x97},
+	{value: 0xa1a1, lo: 0x98, hi: 0x9c},
+	{value: 0xa281, lo: 0x9d, hi: 0xb3},
+	{value: 0x9d41, lo: 0xb4, hi: 0xb4},
+	{value: 0x9db1, lo: 0xb5, hi: 0xb5},
+	{value: 0xa789, lo: 0xb6, hi: 0xbb},
+	{value: 0xa869, lo: 0xbc, hi: 0xbc},
+	{value: 0xa7f9, lo: 0xbd, hi: 0xbd},
+	{value: 0xa8d9, lo: 0xbe, hi: 0xbf},
+	// Block 0x85, offset 0x42f
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0008, lo: 0x80, hi: 0x8b},
+	{value: 0x0040, lo: 0x8c, hi: 0x8c},
+	{value: 0x0008, lo: 0x8d, hi: 0xa6},
+	{value: 0x0040, lo: 0xa7, hi: 0xa7},
+	{value: 0x0008, lo: 0xa8, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbb},
+	{value: 0x0008, lo: 0xbc, hi: 0xbd},
+	{value: 0x0040, lo: 0xbe, hi: 0xbe},
+	{value: 0x0008, lo: 0xbf, hi: 0xbf},
+	// Block 0x86, offset 0x439
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x9d},
+	{value: 0x0040, lo: 0x9e, hi: 0xbf},
+	// Block 0x87, offset 0x43e
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbf},
+	// Block 0x88, offset 0x441
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0018, lo: 0x80, hi: 0x82},
+	{value: 0x0040, lo: 0x83, hi: 0x86},
+	{value: 0x0018, lo: 0x87, hi: 0xb3},
+	{value: 0x0040, lo: 0xb4, hi: 0xb6},
+	{value: 0x0018, lo: 0xb7, hi: 0xbf},
+	// Block 0x89, offset 0x447
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0018, lo: 0x80, hi: 0x8e},
+	{value: 0x0040, lo: 0x8f, hi: 0x8f},
+	{value: 0x0018, lo: 0x90, hi: 0x9b},
+	{value: 0x0040, lo: 0x9c, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xa0},
+	{value: 0x0040, lo: 0xa1, hi: 0xbf},
+	// Block 0x8a, offset 0x44e
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0040, lo: 0x80, hi: 0x8f},
+	{value: 0x0018, lo: 0x90, hi: 0xbc},
+	{value: 0x3308, lo: 0xbd, hi: 0xbd},
+	{value: 0x0040, lo: 0xbe, hi: 0xbf},
+	// Block 0x8b, offset 0x453
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0008, lo: 0x80, hi: 0x9c},
+	{value: 0x0040, lo: 0x9d, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xbf},
+	// Block 0x8c, offset 0x457
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0008, lo: 0x80, hi: 0x90},
+	{value: 0x0040, lo: 0x91, hi: 0x9f},
+	{value: 0x3308, lo: 0xa0, hi: 0xa0},
+	{value: 0x0018, lo: 0xa1, hi: 0xbb},
+	{value: 0x0040, lo: 0xbc, hi: 0xbf},
+	// Block 0x8d, offset 0x45d
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xa3},
+	{value: 0x0040, lo: 0xa4, hi: 0xac},
+	{value: 0x0008, lo: 0xad, hi: 0xbf},
+	// Block 0x8e, offset 0x462
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0008, lo: 0x80, hi: 0x80},
+	{value: 0x0018, lo: 0x81, hi: 0x81},
+	{value: 0x0008, lo: 0x82, hi: 0x89},
+	{value: 0x0018, lo: 0x8a, hi: 0x8a},
+	{value: 0x0040, lo: 0x8b, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0xb5},
+	{value: 0x3308, lo: 0xb6, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbf},
+	// Block 0x8f, offset 0x46b
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0x9d},
+	{value: 0x0040, lo: 0x9e, hi: 0x9e},
+	{value: 0x0018, lo: 0x9f, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xbf},
+	// Block 0x90, offset 0x470
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0008, lo: 0x80, hi: 0x83},
+	{value: 0x0040, lo: 0x84, hi: 0x87},
+	{value: 0x0008, lo: 0x88, hi: 0x8f},
+	{value: 0x0018, lo: 0x90, hi: 0x95},
+	{value: 0x0040, lo: 0x96, hi: 0xbf},
+	// Block 0x91, offset 0x476
+	{value: 0x0000, lo: 0x06},
+	{value: 0xe145, lo: 0x80, hi: 0x87},
+	{value: 0xe1c5, lo: 0x88, hi: 0x8f},
+	{value: 0xe145, lo: 0x90, hi: 0x97},
+	{value: 0x8b0d, lo: 0x98, hi: 0x9f},
+	{value: 0x8b25, lo: 0xa0, hi: 0xa7},
+	{value: 0x0008, lo: 0xa8, hi: 0xbf},
+	// Block 0x92, offset 0x47d
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0008, lo: 0x80, hi: 0x9d},
+	{value: 0x0040, lo: 0x9e, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa9},
+	{value: 0x0040, lo: 0xaa, hi: 0xaf},
+	{value: 0x8b25, lo: 0xb0, hi: 0xb7},
+	{value: 0x8b0d, lo: 0xb8, hi: 0xbf},
+	// Block 0x93, offset 0x484
+	{value: 0x0000, lo: 0x06},
+	{value: 0xe145, lo: 0x80, hi: 0x87},
+	{value: 0xe1c5, lo: 0x88, hi: 0x8f},
+	{value: 0xe145, lo: 0x90, hi: 0x93},
+	{value: 0x0040, lo: 0x94, hi: 0x97},
+	{value: 0x0008, lo: 0x98, hi: 0xbb},
+	{value: 0x0040, lo: 0xbc, hi: 0xbf},
+	// Block 0x94, offset 0x48b
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0008, lo: 0x80, hi: 0xa7},
+	{value: 0x0040, lo: 0xa8, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0x95, offset 0x48f
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0xa3},
+	{value: 0x0040, lo: 0xa4, hi: 0xae},
+	{value: 0x0018, lo: 0xaf, hi: 0xaf},
+	{value: 0x0040, lo: 0xb0, hi: 0xbf},
+	// Block 0x96, offset 0x494
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xbf},
+	// Block 0x97, offset 0x497
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0x95},
+	{value: 0x0040, lo: 0x96, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa7},
+	{value: 0x0040, lo: 0xa8, hi: 0xbf},
+	// Block 0x98, offset 0x49c
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0808, lo: 0x80, hi: 0x85},
+	{value: 0x0040, lo: 0x86, hi: 0x87},
+	{value: 0x0808, lo: 0x88, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0x89},
+	{value: 0x0808, lo: 0x8a, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xb6},
+	{value: 0x0808, lo: 0xb7, hi: 0xb8},
+	{value: 0x0040, lo: 0xb9, hi: 0xbb},
+	{value: 0x0808, lo: 0xbc, hi: 0xbc},
+	{value: 0x0040, lo: 0xbd, hi: 0xbe},
+	{value: 0x0808, lo: 0xbf, hi: 0xbf},
+	// Block 0x99, offset 0x4a8
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0808, lo: 0x80, hi: 0x95},
+	{value: 0x0040, lo: 0x96, hi: 0x96},
+	{value: 0x0818, lo: 0x97, hi: 0x9f},
+	{value: 0x0808, lo: 0xa0, hi: 0xb6},
+	{value: 0x0818, lo: 0xb7, hi: 0xbf},
+	// Block 0x9a, offset 0x4ae
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0808, lo: 0x80, hi: 0x9e},
+	{value: 0x0040, lo: 0x9f, hi: 0xa6},
+	{value: 0x0818, lo: 0xa7, hi: 0xaf},
+	{value: 0x0040, lo: 0xb0, hi: 0xbf},
+	// Block 0x9b, offset 0x4b3
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0040, lo: 0x80, hi: 0x9f},
+	{value: 0x0808, lo: 0xa0, hi: 0xb2},
+	{value: 0x0040, lo: 0xb3, hi: 0xb3},
+	{value: 0x0808, lo: 0xb4, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xba},
+	{value: 0x0818, lo: 0xbb, hi: 0xbf},
+	// Block 0x9c, offset 0x4ba
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0808, lo: 0x80, hi: 0x95},
+	{value: 0x0818, lo: 0x96, hi: 0x9b},
+	{value: 0x0040, lo: 0x9c, hi: 0x9e},
+	{value: 0x0018, lo: 0x9f, hi: 0x9f},
+	{value: 0x0808, lo: 0xa0, hi: 0xb9},
+	{value: 0x0040, lo: 0xba, hi: 0xbe},
+	{value: 0x0818, lo: 0xbf, hi: 0xbf},
+	// Block 0x9d, offset 0x4c2
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0808, lo: 0x80, hi: 0xb7},
+	{value: 0x0040, lo: 0xb8, hi: 0xbb},
+	{value: 0x0818, lo: 0xbc, hi: 0xbd},
+	{value: 0x0808, lo: 0xbe, hi: 0xbf},
+	// Block 0x9e, offset 0x4c7
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0818, lo: 0x80, hi: 0x8f},
+	{value: 0x0040, lo: 0x90, hi: 0x91},
+	{value: 0x0818, lo: 0x92, hi: 0xbf},
+	// Block 0x9f, offset 0x4cb
+	{value: 0x0000, lo: 0x0f},
+	{value: 0x0808, lo: 0x80, hi: 0x80},
+	{value: 0x3308, lo: 0x81, hi: 0x83},
+	{value: 0x0040, lo: 0x84, hi: 0x84},
+	{value: 0x3308, lo: 0x85, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x8b},
+	{value: 0x3308, lo: 0x8c, hi: 0x8f},
+	{value: 0x0808, lo: 0x90, hi: 0x93},
+	{value: 0x0040, lo: 0x94, hi: 0x94},
+	{value: 0x0808, lo: 0x95, hi: 0x97},
+	{value: 0x0040, lo: 0x98, hi: 0x98},
+	{value: 0x0808, lo: 0x99, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xb7},
+	{value: 0x3308, lo: 0xb8, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbe},
+	{value: 0x3b08, lo: 0xbf, hi: 0xbf},
+	// Block 0xa0, offset 0x4db
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0818, lo: 0x80, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0x8f},
+	{value: 0x0818, lo: 0x90, hi: 0x98},
+	{value: 0x0040, lo: 0x99, hi: 0x9f},
+	{value: 0x0808, lo: 0xa0, hi: 0xbc},
+	{value: 0x0818, lo: 0xbd, hi: 0xbf},
+	// Block 0xa1, offset 0x4e2
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0808, lo: 0x80, hi: 0x9c},
+	{value: 0x0818, lo: 0x9d, hi: 0x9f},
+	{value: 0x0040, lo: 0xa0, hi: 0xbf},
+	// Block 0xa2, offset 0x4e6
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0808, lo: 0x80, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xb8},
+	{value: 0x0018, lo: 0xb9, hi: 0xbf},
+	// Block 0xa3, offset 0x4ea
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0808, lo: 0x80, hi: 0x95},
+	{value: 0x0040, lo: 0x96, hi: 0x97},
+	{value: 0x0818, lo: 0x98, hi: 0x9f},
+	{value: 0x0808, lo: 0xa0, hi: 0xb2},
+	{value: 0x0040, lo: 0xb3, hi: 0xb7},
+	{value: 0x0818, lo: 0xb8, hi: 0xbf},
+	// Block 0xa4, offset 0x4f1
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0808, lo: 0x80, hi: 0xbf},
+	// Block 0xa5, offset 0x4f3
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0808, lo: 0x80, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0xbf},
+	// Block 0xa6, offset 0x4f6
+	{value: 0x0000, lo: 0x02},
+	{value: 0x03dd, lo: 0x80, hi: 0xb2},
+	{value: 0x0040, lo: 0xb3, hi: 0xbf},
+	// Block 0xa7, offset 0x4f9
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0808, lo: 0x80, hi: 0xb2},
+	{value: 0x0040, lo: 0xb3, hi: 0xb9},
+	{value: 0x0818, lo: 0xba, hi: 0xbf},
+	// Block 0xa8, offset 0x4fd
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0908, lo: 0x80, hi: 0x80},
+	{value: 0x0a08, lo: 0x81, hi: 0xa1},
+	{value: 0x0c08, lo: 0xa2, hi: 0xa2},
+	{value: 0x0a08, lo: 0xa3, hi: 0xa3},
+	{value: 0x3308, lo: 0xa4, hi: 0xa7},
+	{value: 0x0040, lo: 0xa8, hi: 0xaf},
+	{value: 0x0808, lo: 0xb0, hi: 0xb9},
+	{value: 0x0040, lo: 0xba, hi: 0xbf},
+	// Block 0xa9, offset 0x506
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0040, lo: 0x80, hi: 0x9f},
+	{value: 0x0818, lo: 0xa0, hi: 0xbe},
+	{value: 0x0040, lo: 0xbf, hi: 0xbf},
+	// Block 0xaa, offset 0x50a
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0808, lo: 0x80, hi: 0x9c},
+	{value: 0x0818, lo: 0x9d, hi: 0xa6},
+	{value: 0x0808, lo: 0xa7, hi: 0xa7},
+	{value: 0x0040, lo: 0xa8, hi: 0xaf},
+	{value: 0x0a08, lo: 0xb0, hi: 0xb2},
+	{value: 0x0c08, lo: 0xb3, hi: 0xb3},
+	{value: 0x0a08, lo: 0xb4, hi: 0xbf},
+	// Block 0xab, offset 0x512
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0a08, lo: 0x80, hi: 0x84},
+	{value: 0x0808, lo: 0x85, hi: 0x85},
+	{value: 0x3308, lo: 0x86, hi: 0x90},
+	{value: 0x0a18, lo: 0x91, hi: 0x93},
+	{value: 0x0c18, lo: 0x94, hi: 0x94},
+	{value: 0x0818, lo: 0x95, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0xbf},
+	// Block 0xac, offset 0x51a
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0040, lo: 0x80, hi: 0x9f},
+	{value: 0x0808, lo: 0xa0, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xbf},
+	// Block 0xad, offset 0x51e
+	{value: 0x0000, lo: 0x05},
+	{value: 0x3008, lo: 0x80, hi: 0x80},
+	{value: 0x3308, lo: 0x81, hi: 0x81},
+	{value: 0x3008, lo: 0x82, hi: 0x82},
+	{value: 0x0008, lo: 0x83, hi: 0xb7},
+	{value: 0x3308, lo: 0xb8, hi: 0xbf},
+	// Block 0xae, offset 0x524
+	{value: 0x0000, lo: 0x08},
+	{value: 0x3308, lo: 0x80, hi: 0x85},
+	{value: 0x3b08, lo: 0x86, hi: 0x86},
+	{value: 0x0018, lo: 0x87, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x91},
+	{value: 0x0018, lo: 0x92, hi: 0xa5},
+	{value: 0x0008, lo: 0xa6, hi: 0xaf},
+	{value: 0x0040, lo: 0xb0, hi: 0xbe},
+	{value: 0x3b08, lo: 0xbf, hi: 0xbf},
+	// Block 0xaf, offset 0x52d
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x3308, lo: 0x80, hi: 0x81},
+	{value: 0x3008, lo: 0x82, hi: 0x82},
+	{value: 0x0008, lo: 0x83, hi: 0xaf},
+	{value: 0x3008, lo: 0xb0, hi: 0xb2},
+	{value: 0x3308, lo: 0xb3, hi: 0xb6},
+	{value: 0x3008, lo: 0xb7, hi: 0xb8},
+	{value: 0x3b08, lo: 0xb9, hi: 0xb9},
+	{value: 0x3308, lo: 0xba, hi: 0xba},
+	{value: 0x0018, lo: 0xbb, hi: 0xbc},
+	{value: 0x0040, lo: 0xbd, hi: 0xbd},
+	{value: 0x0018, lo: 0xbe, hi: 0xbf},
+	// Block 0xb0, offset 0x539
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0018, lo: 0x80, hi: 0x81},
+	{value: 0x0040, lo: 0x82, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0xa8},
+	{value: 0x0040, lo: 0xa9, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xb9},
+	{value: 0x0040, lo: 0xba, hi: 0xbf},
+	// Block 0xb1, offset 0x540
+	{value: 0x0000, lo: 0x08},
+	{value: 0x3308, lo: 0x80, hi: 0x82},
+	{value: 0x0008, lo: 0x83, hi: 0xa6},
+	{value: 0x3308, lo: 0xa7, hi: 0xab},
+	{value: 0x3008, lo: 0xac, hi: 0xac},
+	{value: 0x3308, lo: 0xad, hi: 0xb2},
+	{value: 0x3b08, lo: 0xb3, hi: 0xb4},
+	{value: 0x0040, lo: 0xb5, hi: 0xb5},
+	{value: 0x0008, lo: 0xb6, hi: 0xbf},
+	// Block 0xb2, offset 0x549
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0018, lo: 0x80, hi: 0x83},
+	{value: 0x0008, lo: 0x84, hi: 0x84},
+	{value: 0x3008, lo: 0x85, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0xb2},
+	{value: 0x3308, lo: 0xb3, hi: 0xb3},
+	{value: 0x0018, lo: 0xb4, hi: 0xb5},
+	{value: 0x0008, lo: 0xb6, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xbf},
+	// Block 0xb3, offset 0x553
+	{value: 0x0000, lo: 0x06},
+	{value: 0x3308, lo: 0x80, hi: 0x81},
+	{value: 0x3008, lo: 0x82, hi: 0x82},
+	{value: 0x0008, lo: 0x83, hi: 0xb2},
+	{value: 0x3008, lo: 0xb3, hi: 0xb5},
+	{value: 0x3308, lo: 0xb6, hi: 0xbe},
+	{value: 0x3008, lo: 0xbf, hi: 0xbf},
+	// Block 0xb4, offset 0x55a
+	{value: 0x0000, lo: 0x0d},
+	{value: 0x3808, lo: 0x80, hi: 0x80},
+	{value: 0x0008, lo: 0x81, hi: 0x84},
+	{value: 0x0018, lo: 0x85, hi: 0x88},
+	{value: 0x3308, lo: 0x89, hi: 0x8c},
+	{value: 0x0018, lo: 0x8d, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x9a},
+	{value: 0x0018, lo: 0x9b, hi: 0x9b},
+	{value: 0x0008, lo: 0x9c, hi: 0x9c},
+	{value: 0x0018, lo: 0x9d, hi: 0x9f},
+	{value: 0x0040, lo: 0xa0, hi: 0xa0},
+	{value: 0x0018, lo: 0xa1, hi: 0xb4},
+	{value: 0x0040, lo: 0xb5, hi: 0xbf},
+	// Block 0xb5, offset 0x568
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x0008, lo: 0x80, hi: 0x91},
+	{value: 0x0040, lo: 0x92, hi: 0x92},
+	{value: 0x0008, lo: 0x93, hi: 0xab},
+	{value: 0x3008, lo: 0xac, hi: 0xae},
+	{value: 0x3308, lo: 0xaf, hi: 0xb1},
+	{value: 0x3008, lo: 0xb2, hi: 0xb3},
+	{value: 0x3308, lo: 0xb4, hi: 0xb4},
+	{value: 0x3808, lo: 0xb5, hi: 0xb5},
+	{value: 0x3308, lo: 0xb6, hi: 0xb7},
+	{value: 0x0018, lo: 0xb8, hi: 0xbd},
+	{value: 0x3308, lo: 0xbe, hi: 0xbe},
+	{value: 0x0040, lo: 0xbf, hi: 0xbf},
+	// Block 0xb6, offset 0x575
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x0008, lo: 0x80, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x87},
+	{value: 0x0008, lo: 0x88, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0x89},
+	{value: 0x0008, lo: 0x8a, hi: 0x8d},
+	{value: 0x0040, lo: 0x8e, hi: 0x8e},
+	{value: 0x0008, lo: 0x8f, hi: 0x9d},
+	{value: 0x0040, lo: 0x9e, hi: 0x9e},
+	{value: 0x0008, lo: 0x9f, hi: 0xa8},
+	{value: 0x0018, lo: 0xa9, hi: 0xa9},
+	{value: 0x0040, lo: 0xaa, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0xb7, offset 0x582
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0008, lo: 0x80, hi: 0x9e},
+	{value: 0x3308, lo: 0x9f, hi: 0x9f},
+	{value: 0x3008, lo: 0xa0, hi: 0xa2},
+	{value: 0x3308, lo: 0xa3, hi: 0xa9},
+	{value: 0x3b08, lo: 0xaa, hi: 0xaa},
+	{value: 0x0040, lo: 0xab, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xb9},
+	{value: 0x0040, lo: 0xba, hi: 0xbf},
+	// Block 0xb8, offset 0x58b
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0008, lo: 0x80, hi: 0xb4},
+	{value: 0x3008, lo: 0xb5, hi: 0xb7},
+	{value: 0x3308, lo: 0xb8, hi: 0xbf},
+	// Block 0xb9, offset 0x58f
+	{value: 0x0000, lo: 0x0f},
+	{value: 0x3008, lo: 0x80, hi: 0x81},
+	{value: 0x3b08, lo: 0x82, hi: 0x82},
+	{value: 0x3308, lo: 0x83, hi: 0x84},
+	{value: 0x3008, lo: 0x85, hi: 0x85},
+	{value: 0x3308, lo: 0x86, hi: 0x86},
+	{value: 0x0008, lo: 0x87, hi: 0x8a},
+	{value: 0x0018, lo: 0x8b, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9a},
+	{value: 0x0018, lo: 0x9b, hi: 0x9b},
+	{value: 0x0040, lo: 0x9c, hi: 0x9c},
+	{value: 0x0018, lo: 0x9d, hi: 0x9d},
+	{value: 0x3308, lo: 0x9e, hi: 0x9e},
+	{value: 0x0008, lo: 0x9f, hi: 0x9f},
+	{value: 0x0040, lo: 0xa0, hi: 0xbf},
+	// Block 0xba, offset 0x59f
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0008, lo: 0x80, hi: 0xaf},
+	{value: 0x3008, lo: 0xb0, hi: 0xb2},
+	{value: 0x3308, lo: 0xb3, hi: 0xb8},
+	{value: 0x3008, lo: 0xb9, hi: 0xb9},
+	{value: 0x3308, lo: 0xba, hi: 0xba},
+	{value: 0x3008, lo: 0xbb, hi: 0xbe},
+	{value: 0x3308, lo: 0xbf, hi: 0xbf},
+	// Block 0xbb, offset 0x5a7
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x3308, lo: 0x80, hi: 0x80},
+	{value: 0x3008, lo: 0x81, hi: 0x81},
+	{value: 0x3b08, lo: 0x82, hi: 0x82},
+	{value: 0x3308, lo: 0x83, hi: 0x83},
+	{value: 0x0008, lo: 0x84, hi: 0x85},
+	{value: 0x0018, lo: 0x86, hi: 0x86},
+	{value: 0x0008, lo: 0x87, hi: 0x87},
+	{value: 0x0040, lo: 0x88, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0xbf},
+	// Block 0xbc, offset 0x5b2
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0008, lo: 0x80, hi: 0xae},
+	{value: 0x3008, lo: 0xaf, hi: 0xb1},
+	{value: 0x3308, lo: 0xb2, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xb7},
+	{value: 0x3008, lo: 0xb8, hi: 0xbb},
+	{value: 0x3308, lo: 0xbc, hi: 0xbd},
+	{value: 0x3008, lo: 0xbe, hi: 0xbe},
+	{value: 0x3b08, lo: 0xbf, hi: 0xbf},
+	// Block 0xbd, offset 0x5bb
+	{value: 0x0000, lo: 0x05},
+	{value: 0x3308, lo: 0x80, hi: 0x80},
+	{value: 0x0018, lo: 0x81, hi: 0x97},
+	{value: 0x0008, lo: 0x98, hi: 0x9b},
+	{value: 0x3308, lo: 0x9c, hi: 0x9d},
+	{value: 0x0040, lo: 0x9e, hi: 0xbf},
+	// Block 0xbe, offset 0x5c1
+	{value: 0x0000, lo: 0x07},
+	{value: 0x0008, lo: 0x80, hi: 0xaf},
+	{value: 0x3008, lo: 0xb0, hi: 0xb2},
+	{value: 0x3308, lo: 0xb3, hi: 0xba},
+	{value: 0x3008, lo: 0xbb, hi: 0xbc},
+	{value: 0x3308, lo: 0xbd, hi: 0xbd},
+	{value: 0x3008, lo: 0xbe, hi: 0xbe},
+	{value: 0x3b08, lo: 0xbf, hi: 0xbf},
+	// Block 0xbf, offset 0x5c9
+	{value: 0x0000, lo: 0x08},
+	{value: 0x3308, lo: 0x80, hi: 0x80},
+	{value: 0x0018, lo: 0x81, hi: 0x83},
+	{value: 0x0008, lo: 0x84, hi: 0x84},
+	{value: 0x0040, lo: 0x85, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xac},
+	{value: 0x0040, lo: 0xad, hi: 0xbf},
+	// Block 0xc0, offset 0x5d2
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x0008, lo: 0x80, hi: 0xaa},
+	{value: 0x3308, lo: 0xab, hi: 0xab},
+	{value: 0x3008, lo: 0xac, hi: 0xac},
+	{value: 0x3308, lo: 0xad, hi: 0xad},
+	{value: 0x3008, lo: 0xae, hi: 0xaf},
+	{value: 0x3308, lo: 0xb0, hi: 0xb5},
+	{value: 0x3808, lo: 0xb6, hi: 0xb6},
+	{value: 0x3308, lo: 0xb7, hi: 0xb7},
+	{value: 0x0008, lo: 0xb8, hi: 0xb8},
+	{value: 0x0040, lo: 0xb9, hi: 0xbf},
+	// Block 0xc1, offset 0x5dd
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0x89},
+	{value: 0x0040, lo: 0x8a, hi: 0xbf},
+	// Block 0xc2, offset 0x5e0
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0008, lo: 0x80, hi: 0x9a},
+	{value: 0x0040, lo: 0x9b, hi: 0x9c},
+	{value: 0x3308, lo: 0x9d, hi: 0x9f},
+	{value: 0x3008, lo: 0xa0, hi: 0xa1},
+	{value: 0x3308, lo: 0xa2, hi: 0xa5},
+	{value: 0x3008, lo: 0xa6, hi: 0xa6},
+	{value: 0x3308, lo: 0xa7, hi: 0xaa},
+	{value: 0x3b08, lo: 0xab, hi: 0xab},
+	{value: 0x0040, lo: 0xac, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xb9},
+	{value: 0x0018, lo: 0xba, hi: 0xbf},
+	// Block 0xc3, offset 0x5ec
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0008, lo: 0x80, hi: 0xab},
+	{value: 0x3008, lo: 0xac, hi: 0xae},
+	{value: 0x3308, lo: 0xaf, hi: 0xb7},
+	{value: 0x3008, lo: 0xb8, hi: 0xb8},
+	{value: 0x3b08, lo: 0xb9, hi: 0xb9},
+	{value: 0x3308, lo: 0xba, hi: 0xba},
+	{value: 0x0018, lo: 0xbb, hi: 0xbb},
+	{value: 0x0040, lo: 0xbc, hi: 0xbf},
+	// Block 0xc4, offset 0x5f5
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0040, lo: 0x80, hi: 0x9f},
+	{value: 0x049d, lo: 0xa0, hi: 0xbf},
+	// Block 0xc5, offset 0x5f8
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0xa9},
+	{value: 0x0018, lo: 0xaa, hi: 0xb2},
+	{value: 0x0040, lo: 0xb3, hi: 0xbe},
+	{value: 0x0008, lo: 0xbf, hi: 0xbf},
+	// Block 0xc6, offset 0x5fd
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0040, lo: 0x80, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa7},
+	{value: 0x0040, lo: 0xa8, hi: 0xa9},
+	{value: 0x0008, lo: 0xaa, hi: 0xbf},
+	// Block 0xc7, offset 0x602
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x0008, lo: 0x80, hi: 0x90},
+	{value: 0x3008, lo: 0x91, hi: 0x93},
+	{value: 0x3308, lo: 0x94, hi: 0x97},
+	{value: 0x0040, lo: 0x98, hi: 0x99},
+	{value: 0x3308, lo: 0x9a, hi: 0x9b},
+	{value: 0x3008, lo: 0x9c, hi: 0x9f},
+	{value: 0x3b08, lo: 0xa0, hi: 0xa0},
+	{value: 0x0008, lo: 0xa1, hi: 0xa1},
+	{value: 0x0018, lo: 0xa2, hi: 0xa2},
+	{value: 0x0008, lo: 0xa3, hi: 0xa3},
+	{value: 0x3008, lo: 0xa4, hi: 0xa4},
+	{value: 0x0040, lo: 0xa5, hi: 0xbf},
+	// Block 0xc8, offset 0x60f
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x0008, lo: 0x80, hi: 0x80},
+	{value: 0x3308, lo: 0x81, hi: 0x8a},
+	{value: 0x0008, lo: 0x8b, hi: 0xb2},
+	{value: 0x3308, lo: 0xb3, hi: 0xb3},
+	{value: 0x3b08, lo: 0xb4, hi: 0xb4},
+	{value: 0x3308, lo: 0xb5, hi: 0xb8},
+	{value: 0x3008, lo: 0xb9, hi: 0xb9},
+	{value: 0x0008, lo: 0xba, hi: 0xba},
+	{value: 0x3308, lo: 0xbb, hi: 0xbe},
+	{value: 0x0018, lo: 0xbf, hi: 0xbf},
+	// Block 0xc9, offset 0x61a
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0018, lo: 0x80, hi: 0x86},
+	{value: 0x3b08, lo: 0x87, hi: 0x87},
+	{value: 0x0040, lo: 0x88, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x90},
+	{value: 0x3308, lo: 0x91, hi: 0x96},
+	{value: 0x3008, lo: 0x97, hi: 0x98},
+	{value: 0x3308, lo: 0x99, hi: 0x9b},
+	{value: 0x0008, lo: 0x9c, hi: 0xbf},
+	// Block 0xca, offset 0x623
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0008, lo: 0x80, hi: 0x89},
+	{value: 0x3308, lo: 0x8a, hi: 0x96},
+	{value: 0x3008, lo: 0x97, hi: 0x97},
+	{value: 0x3308, lo: 0x98, hi: 0x98},
+	{value: 0x3b08, lo: 0x99, hi: 0x99},
+	{value: 0x0018, lo: 0x9a, hi: 0x9c},
+	{value: 0x0008, lo: 0x9d, hi: 0x9d},
+	{value: 0x0018, lo: 0x9e, hi: 0xa2},
+	{value: 0x0040, lo: 0xa3, hi: 0xbf},
+	// Block 0xcb, offset 0x62d
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xb8},
+	{value: 0x0040, lo: 0xb9, hi: 0xbf},
+	// Block 0xcc, offset 0x630
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0008, lo: 0x80, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0x89},
+	{value: 0x0008, lo: 0x8a, hi: 0xae},
+	{value: 0x3008, lo: 0xaf, hi: 0xaf},
+	{value: 0x3308, lo: 0xb0, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xb7},
+	{value: 0x3308, lo: 0xb8, hi: 0xbd},
+	{value: 0x3008, lo: 0xbe, hi: 0xbe},
+	{value: 0x3b08, lo: 0xbf, hi: 0xbf},
+	// Block 0xcd, offset 0x63a
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0008, lo: 0x80, hi: 0x80},
+	{value: 0x0018, lo: 0x81, hi: 0x85},
+	{value: 0x0040, lo: 0x86, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0018, lo: 0x9a, hi: 0xac},
+	{value: 0x0040, lo: 0xad, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xb1},
+	{value: 0x0008, lo: 0xb2, hi: 0xbf},
+	// Block 0xce, offset 0x643
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x0008, lo: 0x80, hi: 0x8f},
+	{value: 0x0040, lo: 0x90, hi: 0x91},
+	{value: 0x3308, lo: 0x92, hi: 0xa7},
+	{value: 0x0040, lo: 0xa8, hi: 0xa8},
+	{value: 0x3008, lo: 0xa9, hi: 0xa9},
+	{value: 0x3308, lo: 0xaa, hi: 0xb0},
+	{value: 0x3008, lo: 0xb1, hi: 0xb1},
+	{value: 0x3308, lo: 0xb2, hi: 0xb3},
+	{value: 0x3008, lo: 0xb4, hi: 0xb4},
+	{value: 0x3308, lo: 0xb5, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xbf},
+	// Block 0xcf, offset 0x64f
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x0008, lo: 0x80, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x87},
+	{value: 0x0008, lo: 0x88, hi: 0x89},
+	{value: 0x0040, lo: 0x8a, hi: 0x8a},
+	{value: 0x0008, lo: 0x8b, hi: 0xb0},
+	{value: 0x3308, lo: 0xb1, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xb9},
+	{value: 0x3308, lo: 0xba, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbb},
+	{value: 0x3308, lo: 0xbc, hi: 0xbd},
+	{value: 0x0040, lo: 0xbe, hi: 0xbe},
+	{value: 0x3308, lo: 0xbf, hi: 0xbf},
+	// Block 0xd0, offset 0x65c
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x3308, lo: 0x80, hi: 0x83},
+	{value: 0x3b08, lo: 0x84, hi: 0x85},
+	{value: 0x0008, lo: 0x86, hi: 0x86},
+	{value: 0x3308, lo: 0x87, hi: 0x87},
+	{value: 0x0040, lo: 0x88, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa5},
+	{value: 0x0040, lo: 0xa6, hi: 0xa6},
+	{value: 0x0008, lo: 0xa7, hi: 0xa8},
+	{value: 0x0040, lo: 0xa9, hi: 0xa9},
+	{value: 0x0008, lo: 0xaa, hi: 0xbf},
+	// Block 0xd1, offset 0x669
+	{value: 0x0000, lo: 0x0d},
+	{value: 0x0008, lo: 0x80, hi: 0x89},
+	{value: 0x3008, lo: 0x8a, hi: 0x8e},
+	{value: 0x0040, lo: 0x8f, hi: 0x8f},
+	{value: 0x3308, lo: 0x90, hi: 0x91},
+	{value: 0x0040, lo: 0x92, hi: 0x92},
+	{value: 0x3008, lo: 0x93, hi: 0x94},
+	{value: 0x3308, lo: 0x95, hi: 0x95},
+	{value: 0x3008, lo: 0x96, hi: 0x96},
+	{value: 0x3b08, lo: 0x97, hi: 0x97},
+	{value: 0x0008, lo: 0x98, hi: 0x98},
+	{value: 0x0040, lo: 0x99, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa9},
+	{value: 0x0040, lo: 0xaa, hi: 0xbf},
+	// Block 0xd2, offset 0x677
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0040, lo: 0x80, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xb2},
+	{value: 0x3308, lo: 0xb3, hi: 0xb4},
+	{value: 0x3008, lo: 0xb5, hi: 0xb6},
+	{value: 0x0018, lo: 0xb7, hi: 0xb8},
+	{value: 0x0040, lo: 0xb9, hi: 0xbf},
+	// Block 0xd3, offset 0x67e
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0xb1},
+	{value: 0x0040, lo: 0xb2, hi: 0xbe},
+	{value: 0x0018, lo: 0xbf, hi: 0xbf},
+	// Block 0xd4, offset 0x682
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0xbf},
+	// Block 0xd5, offset 0x685
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0xae},
+	{value: 0x0040, lo: 0xaf, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xb4},
+	{value: 0x0040, lo: 0xb5, hi: 0xbf},
+	// Block 0xd6, offset 0x68a
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0x83},
+	{value: 0x0040, lo: 0x84, hi: 0xbf},
+	// Block 0xd7, offset 0x68d
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0xae},
+	{value: 0x0040, lo: 0xaf, hi: 0xaf},
+	{value: 0x0340, lo: 0xb0, hi: 0xb8},
+	{value: 0x0040, lo: 0xb9, hi: 0xbf},
+	// Block 0xd8, offset 0x692
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0xbf},
+	// Block 0xd9, offset 0x695
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0008, lo: 0x80, hi: 0x9e},
+	{value: 0x0040, lo: 0x9f, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa9},
+	{value: 0x0040, lo: 0xaa, hi: 0xad},
+	{value: 0x0018, lo: 0xae, hi: 0xaf},
+	{value: 0x0040, lo: 0xb0, hi: 0xbf},
+	// Block 0xda, offset 0x69c
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0040, lo: 0x80, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0xad},
+	{value: 0x0040, lo: 0xae, hi: 0xaf},
+	{value: 0x3308, lo: 0xb0, hi: 0xb4},
+	{value: 0x0018, lo: 0xb5, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xbf},
+	// Block 0xdb, offset 0x6a3
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0008, lo: 0x80, hi: 0xaf},
+	{value: 0x3308, lo: 0xb0, hi: 0xb6},
+	{value: 0x0018, lo: 0xb7, hi: 0xbf},
+	// Block 0xdc, offset 0x6a7
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x0008, lo: 0x80, hi: 0x83},
+	{value: 0x0018, lo: 0x84, hi: 0x85},
+	{value: 0x0040, lo: 0x86, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9a},
+	{value: 0x0018, lo: 0x9b, hi: 0xa1},
+	{value: 0x0040, lo: 0xa2, hi: 0xa2},
+	{value: 0x0008, lo: 0xa3, hi: 0xb7},
+	{value: 0x0040, lo: 0xb8, hi: 0xbc},
+	{value: 0x0008, lo: 0xbd, hi: 0xbf},
+	// Block 0xdd, offset 0x6b2
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0x8f},
+	{value: 0x0040, lo: 0x90, hi: 0xbf},
+	// Block 0xde, offset 0x6b5
+	{value: 0x0000, lo: 0x02},
+	{value: 0xe105, lo: 0x80, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xbf},
+	// Block 0xdf, offset 0x6b8
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0018, lo: 0x80, hi: 0x9a},
+	{value: 0x0040, lo: 0x9b, hi: 0xbf},
+	// Block 0xe0, offset 0x6bb
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0008, lo: 0x80, hi: 0x8a},
+	{value: 0x0040, lo: 0x8b, hi: 0x8e},
+	{value: 0x3308, lo: 0x8f, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x90},
+	{value: 0x3008, lo: 0x91, hi: 0xbf},
+	// Block 0xe1, offset 0x6c1
+	{value: 0x0000, lo: 0x05},
+	{value: 0x3008, lo: 0x80, hi: 0x87},
+	{value: 0x0040, lo: 0x88, hi: 0x8e},
+	{value: 0x3308, lo: 0x8f, hi: 0x92},
+	{value: 0x0008, lo: 0x93, hi: 0x9f},
+	{value: 0x0040, lo: 0xa0, hi: 0xbf},
+	// Block 0xe2, offset 0x6c7
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0040, lo: 0x80, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xa1},
+	{value: 0x0018, lo: 0xa2, hi: 0xa2},
+	{value: 0x0008, lo: 0xa3, hi: 0xa3},
+	{value: 0x0040, lo: 0xa4, hi: 0xbf},
+	// Block 0xe3, offset 0x6cd
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xb7},
+	{value: 0x0040, lo: 0xb8, hi: 0xbf},
+	// Block 0xe4, offset 0x6d0
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xb2},
+	{value: 0x0040, lo: 0xb3, hi: 0xbf},
+	// Block 0xe5, offset 0x6d3
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0x9e},
+	{value: 0x0040, lo: 0x9f, hi: 0xbf},
+	// Block 0xe6, offset 0x6d6
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0040, lo: 0x80, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x92},
+	{value: 0x0040, lo: 0x93, hi: 0xa3},
+	{value: 0x0008, lo: 0xa4, hi: 0xa7},
+	{value: 0x0040, lo: 0xa8, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0xe7, offset 0x6dd
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xbb},
+	{value: 0x0040, lo: 0xbc, hi: 0xbf},
+	// Block 0xe8, offset 0x6e0
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0008, lo: 0x80, hi: 0xaa},
+	{value: 0x0040, lo: 0xab, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbc},
+	{value: 0x0040, lo: 0xbd, hi: 0xbf},
+	// Block 0xe9, offset 0x6e5
+	{value: 0x0000, lo: 0x09},
+	{value: 0x0008, lo: 0x80, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0x8f},
+	{value: 0x0008, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9b},
+	{value: 0x0018, lo: 0x9c, hi: 0x9c},
+	{value: 0x3308, lo: 0x9d, hi: 0x9e},
+	{value: 0x0018, lo: 0x9f, hi: 0x9f},
+	{value: 0x03c0, lo: 0xa0, hi: 0xa3},
+	{value: 0x0040, lo: 0xa4, hi: 0xbf},
+	// Block 0xea, offset 0x6ef
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0018, lo: 0x80, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xbf},
+	// Block 0xeb, offset 0x6f2
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0xa6},
+	{value: 0x0040, lo: 0xa7, hi: 0xa8},
+	{value: 0x0018, lo: 0xa9, hi: 0xbf},
+	// Block 0xec, offset 0x6f6
+	{value: 0x0000, lo: 0x0e},
+	{value: 0x0018, lo: 0x80, hi: 0x9d},
+	{value: 0xb5b9, lo: 0x9e, hi: 0x9e},
+	{value: 0xb601, lo: 0x9f, hi: 0x9f},
+	{value: 0xb649, lo: 0xa0, hi: 0xa0},
+	{value: 0xb6b1, lo: 0xa1, hi: 0xa1},
+	{value: 0xb719, lo: 0xa2, hi: 0xa2},
+	{value: 0xb781, lo: 0xa3, hi: 0xa3},
+	{value: 0xb7e9, lo: 0xa4, hi: 0xa4},
+	{value: 0x3018, lo: 0xa5, hi: 0xa6},
+	{value: 0x3318, lo: 0xa7, hi: 0xa9},
+	{value: 0x0018, lo: 0xaa, hi: 0xac},
+	{value: 0x3018, lo: 0xad, hi: 0xb2},
+	{value: 0x0340, lo: 0xb3, hi: 0xba},
+	{value: 0x3318, lo: 0xbb, hi: 0xbf},
+	// Block 0xed, offset 0x705
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x3318, lo: 0x80, hi: 0x82},
+	{value: 0x0018, lo: 0x83, hi: 0x84},
+	{value: 0x3318, lo: 0x85, hi: 0x8b},
+	{value: 0x0018, lo: 0x8c, hi: 0xa9},
+	{value: 0x3318, lo: 0xaa, hi: 0xad},
+	{value: 0x0018, lo: 0xae, hi: 0xba},
+	{value: 0xb851, lo: 0xbb, hi: 0xbb},
+	{value: 0xb899, lo: 0xbc, hi: 0xbc},
+	{value: 0xb8e1, lo: 0xbd, hi: 0xbd},
+	{value: 0xb949, lo: 0xbe, hi: 0xbe},
+	{value: 0xb9b1, lo: 0xbf, hi: 0xbf},
+	// Block 0xee, offset 0x711
+	{value: 0x0000, lo: 0x03},
+	{value: 0xba19, lo: 0x80, hi: 0x80},
+	{value: 0x0018, lo: 0x81, hi: 0xa8},
+	{value: 0x0040, lo: 0xa9, hi: 0xbf},
+	// Block 0xef, offset 0x715
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0x81},
+	{value: 0x3318, lo: 0x82, hi: 0x84},
+	{value: 0x0018, lo: 0x85, hi: 0x85},
+	{value: 0x0040, lo: 0x86, hi: 0xbf},
+	// Block 0xf0, offset 0x71a
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0040, lo: 0x80, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xb3},
+	{value: 0x0040, lo: 0xb4, hi: 0xbf},
+	// Block 0xf1, offset 0x71e
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xb8},
+	{value: 0x0040, lo: 0xb9, hi: 0xbf},
+	// Block 0xf2, offset 0x723
+	{value: 0x0000, lo: 0x03},
+	{value: 0x3308, lo: 0x80, hi: 0xb6},
+	{value: 0x0018, lo: 0xb7, hi: 0xba},
+	{value: 0x3308, lo: 0xbb, hi: 0xbf},
+	// Block 0xf3, offset 0x727
+	{value: 0x0000, lo: 0x04},
+	{value: 0x3308, lo: 0x80, hi: 0xac},
+	{value: 0x0018, lo: 0xad, hi: 0xb4},
+	{value: 0x3308, lo: 0xb5, hi: 0xb5},
+	{value: 0x0018, lo: 0xb6, hi: 0xbf},
+	// Block 0xf4, offset 0x72c
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0018, lo: 0x80, hi: 0x83},
+	{value: 0x3308, lo: 0x84, hi: 0x84},
+	{value: 0x0018, lo: 0x85, hi: 0x8b},
+	{value: 0x0040, lo: 0x8c, hi: 0x9a},
+	{value: 0x3308, lo: 0x9b, hi: 0x9f},
+	{value: 0x0040, lo: 0xa0, hi: 0xa0},
+	{value: 0x3308, lo: 0xa1, hi: 0xaf},
+	{value: 0x0040, lo: 0xb0, hi: 0xbf},
+	// Block 0xf5, offset 0x735
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x3308, lo: 0x80, hi: 0x86},
+	{value: 0x0040, lo: 0x87, hi: 0x87},
+	{value: 0x3308, lo: 0x88, hi: 0x98},
+	{value: 0x0040, lo: 0x99, hi: 0x9a},
+	{value: 0x3308, lo: 0x9b, hi: 0xa1},
+	{value: 0x0040, lo: 0xa2, hi: 0xa2},
+	{value: 0x3308, lo: 0xa3, hi: 0xa4},
+	{value: 0x0040, lo: 0xa5, hi: 0xa5},
+	{value: 0x3308, lo: 0xa6, hi: 0xaa},
+	{value: 0x0040, lo: 0xab, hi: 0xbf},
+	// Block 0xf6, offset 0x740
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0008, lo: 0x80, hi: 0xac},
+	{value: 0x0040, lo: 0xad, hi: 0xaf},
+	{value: 0x3308, lo: 0xb0, hi: 0xb6},
+	{value: 0x0008, lo: 0xb7, hi: 0xbd},
+	{value: 0x0040, lo: 0xbe, hi: 0xbf},
+	// Block 0xf7, offset 0x746
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0008, lo: 0x80, hi: 0x89},
+	{value: 0x0040, lo: 0x8a, hi: 0x8d},
+	{value: 0x0008, lo: 0x8e, hi: 0x8e},
+	{value: 0x0018, lo: 0x8f, hi: 0x8f},
+	{value: 0x0040, lo: 0x90, hi: 0xbf},
+	// Block 0xf8, offset 0x74c
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0008, lo: 0x80, hi: 0xab},
+	{value: 0x3308, lo: 0xac, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xb9},
+	{value: 0x0040, lo: 0xba, hi: 0xbe},
+	{value: 0x0018, lo: 0xbf, hi: 0xbf},
+	// Block 0xf9, offset 0x752
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0808, lo: 0x80, hi: 0x84},
+	{value: 0x0040, lo: 0x85, hi: 0x86},
+	{value: 0x0818, lo: 0x87, hi: 0x8f},
+	{value: 0x3308, lo: 0x90, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0xbf},
+	// Block 0xfa, offset 0x758
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0a08, lo: 0x80, hi: 0x83},
+	{value: 0x3308, lo: 0x84, hi: 0x8a},
+	{value: 0x0b08, lo: 0x8b, hi: 0x8b},
+	{value: 0x0040, lo: 0x8c, hi: 0x8f},
+	{value: 0x0808, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9d},
+	{value: 0x0818, lo: 0x9e, hi: 0x9f},
+	{value: 0x0040, lo: 0xa0, hi: 0xbf},
+	// Block 0xfb, offset 0x761
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0040, lo: 0x80, hi: 0xb0},
+	{value: 0x0818, lo: 0xb1, hi: 0xbf},
+	// Block 0xfc, offset 0x764
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0818, lo: 0x80, hi: 0xb4},
+	{value: 0x0040, lo: 0xb5, hi: 0xbf},
+	// Block 0xfd, offset 0x767
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0040, lo: 0x80, hi: 0x80},
+	{value: 0x0818, lo: 0x81, hi: 0xbd},
+	{value: 0x0040, lo: 0xbe, hi: 0xbf},
+	// Block 0xfe, offset 0x76b
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0040, lo: 0x80, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xb1},
+	{value: 0x0040, lo: 0xb2, hi: 0xbf},
+	// Block 0xff, offset 0x76f
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0xab},
+	{value: 0x0040, lo: 0xac, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xbf},
+	// Block 0x100, offset 0x773
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0018, lo: 0x80, hi: 0x93},
+	{value: 0x0040, lo: 0x94, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xae},
+	{value: 0x0040, lo: 0xaf, hi: 0xb0},
+	{value: 0x0018, lo: 0xb1, hi: 0xbf},
+	// Block 0x101, offset 0x779
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0040, lo: 0x80, hi: 0x80},
+	{value: 0x0018, lo: 0x81, hi: 0x8f},
+	{value: 0x0040, lo: 0x90, hi: 0x90},
+	{value: 0x0018, lo: 0x91, hi: 0xb5},
+	{value: 0x0040, lo: 0xb6, hi: 0xbf},
+	// Block 0x102, offset 0x77f
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0x8f},
+	{value: 0xc1d9, lo: 0x90, hi: 0x90},
+	{value: 0x0018, lo: 0x91, hi: 0xac},
+	{value: 0x0040, lo: 0xad, hi: 0xbf},
+	// Block 0x103, offset 0x784
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0040, lo: 0x80, hi: 0xa5},
+	{value: 0x0018, lo: 0xa6, hi: 0xbf},
+	// Block 0x104, offset 0x787
+	{value: 0x0000, lo: 0x0f},
+	{value: 0xc801, lo: 0x80, hi: 0x80},
+	{value: 0xc851, lo: 0x81, hi: 0x81},
+	{value: 0xc8a1, lo: 0x82, hi: 0x82},
+	{value: 0xc8f1, lo: 0x83, hi: 0x83},
+	{value: 0xc941, lo: 0x84, hi: 0x84},
+	{value: 0xc991, lo: 0x85, hi: 0x85},
+	{value: 0xc9e1, lo: 0x86, hi: 0x86},
+	{value: 0xca31, lo: 0x87, hi: 0x87},
+	{value: 0xca81, lo: 0x88, hi: 0x88},
+	{value: 0x0040, lo: 0x89, hi: 0x8f},
+	{value: 0xcad1, lo: 0x90, hi: 0x90},
+	{value: 0xcaf1, lo: 0x91, hi: 0x91},
+	{value: 0x0040, lo: 0x92, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xa5},
+	{value: 0x0040, lo: 0xa6, hi: 0xbf},
+	// Block 0x105, offset 0x797
+	{value: 0x0000, lo: 0x06},
+	{value: 0x0018, lo: 0x80, hi: 0x95},
+	{value: 0x0040, lo: 0x96, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xac},
+	{value: 0x0040, lo: 0xad, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbf},
+	// Block 0x106, offset 0x79e
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0018, lo: 0x80, hi: 0xb3},
+	{value: 0x0040, lo: 0xb4, hi: 0xbf},
+	// Block 0x107, offset 0x7a1
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0x98},
+	{value: 0x0040, lo: 0x99, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xab},
+	{value: 0x0040, lo: 0xac, hi: 0xbf},
+	// Block 0x108, offset 0x7a6
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0x8b},
+	{value: 0x0040, lo: 0x8c, hi: 0x8f},
+	{value: 0x0018, lo: 0x90, hi: 0xbf},
+	// Block 0x109, offset 0x7aa
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0018, lo: 0x80, hi: 0x87},
+	{value: 0x0040, lo: 0x88, hi: 0x8f},
+	{value: 0x0018, lo: 0x90, hi: 0x99},
+	{value: 0x0040, lo: 0x9a, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xbf},
+	// Block 0x10a, offset 0x7b0
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0x87},
+	{value: 0x0040, lo: 0x88, hi: 0x8f},
+	{value: 0x0018, lo: 0x90, hi: 0xad},
+	{value: 0x0040, lo: 0xae, hi: 0xbf},
+	// Block 0x10b, offset 0x7b5
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0x8b},
+	{value: 0x0040, lo: 0x8c, hi: 0x8c},
+	{value: 0x0018, lo: 0x8d, hi: 0xbf},
+	// Block 0x10c, offset 0x7b9
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0018, lo: 0x80, hi: 0xb1},
+	{value: 0x0040, lo: 0xb2, hi: 0xb2},
+	{value: 0x0018, lo: 0xb3, hi: 0xb6},
+	{value: 0x0040, lo: 0xb7, hi: 0xb9},
+	{value: 0x0018, lo: 0xba, hi: 0xbf},
+	// Block 0x10d, offset 0x7bf
+	{value: 0x0000, lo: 0x05},
+	{value: 0x0018, lo: 0x80, hi: 0xa2},
+	{value: 0x0040, lo: 0xa3, hi: 0xa4},
+	{value: 0x0018, lo: 0xa5, hi: 0xaa},
+	{value: 0x0040, lo: 0xab, hi: 0xad},
+	{value: 0x0018, lo: 0xae, hi: 0xbf},
+	// Block 0x10e, offset 0x7c5
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0018, lo: 0x80, hi: 0x8a},
+	{value: 0x0040, lo: 0x8b, hi: 0x8c},
+	{value: 0x0018, lo: 0x8d, hi: 0xbf},
+	// Block 0x10f, offset 0x7c9
+	{value: 0x0000, lo: 0x08},
+	{value: 0x0018, lo: 0x80, hi: 0x93},
+	{value: 0x0040, lo: 0x94, hi: 0x9f},
+	{value: 0x0018, lo: 0xa0, hi: 0xad},
+	{value: 0x0040, lo: 0xae, hi: 0xaf},
+	{value: 0x0018, lo: 0xb0, hi: 0xb3},
+	{value: 0x0040, lo: 0xb4, hi: 0xb7},
+	{value: 0x0018, lo: 0xb8, hi: 0xba},
+	{value: 0x0040, lo: 0xbb, hi: 0xbf},
+	// Block 0x110, offset 0x7d2
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0018, lo: 0x80, hi: 0x82},
+	{value: 0x0040, lo: 0x83, hi: 0x8f},
+	{value: 0x0018, lo: 0x90, hi: 0x95},
+	{value: 0x0040, lo: 0x96, hi: 0xbf},
+	// Block 0x111, offset 0x7d7
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0x96},
+	{value: 0x0040, lo: 0x97, hi: 0xbf},
+	// Block 0x112, offset 0x7da
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xb4},
+	{value: 0x0040, lo: 0xb5, hi: 0xbf},
+	// Block 0x113, offset 0x7dd
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0008, lo: 0x80, hi: 0x9d},
+	{value: 0x0040, lo: 0x9e, hi: 0x9f},
+	{value: 0x0008, lo: 0xa0, hi: 0xbf},
+	// Block 0x114, offset 0x7e1
+	{value: 0x0000, lo: 0x03},
+	{value: 0x0008, lo: 0x80, hi: 0xa1},
+	{value: 0x0040, lo: 0xa2, hi: 0xaf},
+	{value: 0x0008, lo: 0xb0, hi: 0xbf},
+	// Block 0x115, offset 0x7e5
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0008, lo: 0x80, hi: 0xa0},
+	{value: 0x0040, lo: 0xa1, hi: 0xbf},
+	// Block 0x116, offset 0x7e8
+	{value: 0x0020, lo: 0x0f},
+	{value: 0xded1, lo: 0x80, hi: 0x89},
+	{value: 0x8e35, lo: 0x8a, hi: 0x8a},
+	{value: 0xe011, lo: 0x8b, hi: 0x9c},
+	{value: 0x8e55, lo: 0x9d, hi: 0x9d},
+	{value: 0xe251, lo: 0x9e, hi: 0xa2},
+	{value: 0x8e75, lo: 0xa3, hi: 0xa3},
+	{value: 0xe2f1, lo: 0xa4, hi: 0xab},
+	{value: 0x7f0d, lo: 0xac, hi: 0xac},
+	{value: 0xe3f1, lo: 0xad, hi: 0xaf},
+	{value: 0x8e95, lo: 0xb0, hi: 0xb0},
+	{value: 0xe451, lo: 0xb1, hi: 0xb6},
+	{value: 0x8eb5, lo: 0xb7, hi: 0xb9},
+	{value: 0xe511, lo: 0xba, hi: 0xba},
+	{value: 0x8f15, lo: 0xbb, hi: 0xbb},
+	{value: 0xe531, lo: 0xbc, hi: 0xbf},
+	// Block 0x117, offset 0x7f8
+	{value: 0x0020, lo: 0x10},
+	{value: 0x93b5, lo: 0x80, hi: 0x80},
+	{value: 0xf0b1, lo: 0x81, hi: 0x86},
+	{value: 0x93d5, lo: 0x87, hi: 0x8a},
+	{value: 0xda11, lo: 0x8b, hi: 0x8b},
+	{value: 0xf171, lo: 0x8c, hi: 0x96},
+	{value: 0x9455, lo: 0x97, hi: 0x97},
+	{value: 0xf2d1, lo: 0x98, hi: 0xa3},
+	{value: 0x9475, lo: 0xa4, hi: 0xa6},
+	{value: 0xf451, lo: 0xa7, hi: 0xaa},
+	{value: 0x94d5, lo: 0xab, hi: 0xab},
+	{value: 0xf4d1, lo: 0xac, hi: 0xac},
+	{value: 0x94f5, lo: 0xad, hi: 0xad},
+	{value: 0xf4f1, lo: 0xae, hi: 0xaf},
+	{value: 0x9515, lo: 0xb0, hi: 0xb1},
+	{value: 0xf531, lo: 0xb2, hi: 0xbe},
+	{value: 0x2040, lo: 0xbf, hi: 0xbf},
+	// Block 0x118, offset 0x809
+	{value: 0x0000, lo: 0x04},
+	{value: 0x0040, lo: 0x80, hi: 0x80},
+	{value: 0x0340, lo: 0x81, hi: 0x81},
+	{value: 0x0040, lo: 0x82, hi: 0x9f},
+	{value: 0x0340, lo: 0xa0, hi: 0xbf},
+	// Block 0x119, offset 0x80e
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0340, lo: 0x80, hi: 0xbf},
+	// Block 0x11a, offset 0x810
+	{value: 0x0000, lo: 0x01},
+	{value: 0x33c0, lo: 0x80, hi: 0xbf},
+	// Block 0x11b, offset 0x812
+	{value: 0x0000, lo: 0x02},
+	{value: 0x33c0, lo: 0x80, hi: 0xaf},
+	{value: 0x0040, lo: 0xb0, hi: 0xbf},
+}
+
+// Total table size 42780 bytes (41KiB); checksum: 29936AB9
diff --git a/libgo/go/golang.org/x/net/nettest/nettest.go b/libgo/go/golang.org/x/net/nettest/nettest.go
index 717bbb0..a402a46 100644
--- a/libgo/go/golang.org/x/net/nettest/nettest.go
+++ b/libgo/go/golang.org/x/net/nettest/nettest.go
@@ -20,11 +20,11 @@
 )
 
 var (
-	stackOnce     sync.Once
-	ipv4Enabled   bool
-	ipv6Enabled   bool
-	rawSocketSess bool
-	aixTechLvl    int
+	stackOnce          sync.Once
+	ipv4Enabled        bool
+	ipv6Enabled        bool
+	unStrmDgramEnabled bool
+	rawSocketSess      bool
 
 	aLongTimeAgo = time.Unix(233431200, 0)
 	neverTimeout = time.Time{}
@@ -43,17 +43,24 @@
 		ipv6Enabled = true
 	}
 	rawSocketSess = supportsRawSocket()
-	if runtime.GOOS == "aix" {
-		out, err := exec.Command("oslevel", "-s").Output()
-		if err == nil {
-			aixTechLvl, _ = strconv.Atoi(string(out[5:7]))
+	switch runtime.GOOS {
+	case "aix":
+		// Unix network isn't properly working on AIX 7.2 with
+		// Technical Level < 2.
+		out, _ := exec.Command("oslevel", "-s").Output()
+		if len(out) >= len("7200-XX-ZZ-YYMM") { // AIX 7.2, Tech Level XX, Service Pack ZZ, date YYMM
+			ver := string(out[:4])
+			tl, _ := strconv.Atoi(string(out[5:7]))
+			unStrmDgramEnabled = ver > "7200" || (ver == "7200" && tl >= 2)
 		}
+	default:
+		unStrmDgramEnabled = true
 	}
 }
 
-func aixTechLevel() int {
+func unixStrmDgramEnabled() bool {
 	stackOnce.Do(probeStack)
-	return aixTechLvl
+	return unStrmDgramEnabled
 }
 
 // SupportsIPv4 reports whether the platform supports IPv4 networking
@@ -110,12 +117,7 @@
 		case "android", "fuchsia", "hurd", "js", "nacl", "plan9", "windows":
 			return false
 		case "aix":
-			// Unix network isn't properly working on AIX
-			// 7.2 with Technical Level < 2.
-			if aixTechLevel() < 2 {
-				return false
-			}
-			return true
+			return unixStrmDgramEnabled()
 		case "darwin":
 			// iOS does not support unix, unixgram.
 			if runtime.GOARCH == "arm" || runtime.GOARCH == "arm64" {
diff --git a/libgo/go/golang.org/x/net/route/address.go b/libgo/go/golang.org/x/net/route/address.go
index e6bfa39..b715281 100644
--- a/libgo/go/golang.org/x/net/route/address.go
+++ b/libgo/go/golang.org/x/net/route/address.go
@@ -222,7 +222,7 @@
 	//   the routing message boundary
 	l := int(b[0])
 	if runtime.GOOS == "darwin" {
-		// On Darwn, an address in the kernel form is also
+		// On Darwin, an address in the kernel form is also
 		// used as a message filler.
 		if l == 0 || len(b) > roundup(l) {
 			l = roundup(l)
diff --git a/libgo/go/golang.org/x/net/route/message.go b/libgo/go/golang.org/x/net/route/message.go
index 0fa7e09..80c482a 100644
--- a/libgo/go/golang.org/x/net/route/message.go
+++ b/libgo/go/golang.org/x/net/route/message.go
@@ -45,7 +45,7 @@
 		if len(b) < l {
 			return nil, errMessageTooShort
 		}
-		if b[2] != sysRTM_VERSION {
+		if b[2] != rtmVersion {
 			b = b[l:]
 			continue
 		}
diff --git a/libgo/go/golang.org/x/net/route/route.go b/libgo/go/golang.org/x/net/route/route.go
index 8cb64f7..bba7ed7 100644
--- a/libgo/go/golang.org/x/net/route/route.go
+++ b/libgo/go/golang.org/x/net/route/route.go
@@ -73,7 +73,7 @@
 	Version int     // message version
 	Type    int     // message type
 	Flags   int     // route flags
-	Index   int     // interface index when atatched
+	Index   int     // interface index when attached
 	ID      uintptr // sender's identifier; usually process ID
 	Seq     int     // sequence number
 	Err     error   // error on requested operation
diff --git a/libgo/go/golang.org/x/net/route/route_classic.go b/libgo/go/golang.org/x/net/route/route_classic.go
index 02fa688..a7d3864 100644
--- a/libgo/go/golang.org/x/net/route/route_classic.go
+++ b/libgo/go/golang.org/x/net/route/route_classic.go
@@ -25,7 +25,7 @@
 	b := make([]byte, l)
 	nativeEndian.PutUint16(b[:2], uint16(l))
 	if m.Version == 0 {
-		b[2] = sysRTM_VERSION
+		b[2] = rtmVersion
 	} else {
 		b[2] = byte(m.Version)
 	}
diff --git a/libgo/go/golang.org/x/net/route/sys.go b/libgo/go/golang.org/x/net/route/sys.go
index 13933f9..a0ab3e9 100644
--- a/libgo/go/golang.org/x/net/route/sys.go
+++ b/libgo/go/golang.org/x/net/route/sys.go
@@ -11,6 +11,7 @@
 var (
 	nativeEndian binaryByteOrder
 	kernelAlign  int
+	rtmVersion   byte
 	wireFormats  map[int]*wireFormat
 )
 
@@ -22,6 +23,8 @@
 	} else {
 		nativeEndian = bigEndian
 	}
+	// might get overridden in probeRoutingStack
+	rtmVersion = sysRTM_VERSION
 	kernelAlign, wireFormats = probeRoutingStack()
 }
 
diff --git a/libgo/go/golang.org/x/net/route/sys_dragonfly.go b/libgo/go/golang.org/x/net/route/sys_dragonfly.go
index 0c14bc2..a138951 100644
--- a/libgo/go/golang.org/x/net/route/sys_dragonfly.go
+++ b/libgo/go/golang.org/x/net/route/sys_dragonfly.go
@@ -4,7 +4,10 @@
 
 package route
 
-import "unsafe"
+import (
+	"syscall"
+	"unsafe"
+)
 
 func (typ RIBType) parseable() bool { return true }
 
@@ -56,6 +59,15 @@
 	ifmam.parse = ifmam.parseInterfaceMulticastAddrMessage
 	ifanm := &wireFormat{extOff: sizeofIfAnnouncemsghdrDragonFlyBSD4, bodyOff: sizeofIfAnnouncemsghdrDragonFlyBSD4}
 	ifanm.parse = ifanm.parseInterfaceAnnounceMessage
+
+	rel, _ := syscall.SysctlUint32("kern.osreldate")
+	if rel >= 500705 {
+		// https://github.com/DragonFlyBSD/DragonFlyBSD/commit/43a373152df2d405c9940983e584e6a25e76632d
+		// but only the size of struct ifa_msghdr actually changed
+		rtmVersion = 7
+		ifam.bodyOff = sizeofIfaMsghdrDragonFlyBSD58
+	}
+
 	return int(unsafe.Sizeof(p)), map[int]*wireFormat{
 		sysRTM_ADD:        rtm,
 		sysRTM_DELETE:     rtm,
diff --git a/libgo/go/golang.org/x/net/route/zsys_dragonfly.go b/libgo/go/golang.org/x/net/route/zsys_dragonfly.go
index 8ed2d4d..34f0eaa 100644
--- a/libgo/go/golang.org/x/net/route/zsys_dragonfly.go
+++ b/libgo/go/golang.org/x/net/route/zsys_dragonfly.go
@@ -46,8 +46,6 @@
 	sysRTM_REDIRECT   = 0x6
 	sysRTM_MISS       = 0x7
 	sysRTM_LOCK       = 0x8
-	sysRTM_OLDADD     = 0x9
-	sysRTM_OLDDEL     = 0xa
 	sysRTM_RESOLVE    = 0xb
 	sysRTM_NEWADDR    = 0xc
 	sysRTM_DELADDR    = 0xd
@@ -89,6 +87,8 @@
 	sizeofIfmaMsghdrDragonFlyBSD4       = 0x10
 	sizeofIfAnnouncemsghdrDragonFlyBSD4 = 0x18
 
+	sizeofIfaMsghdrDragonFlyBSD58 = 0x18
+
 	sizeofRtMsghdrDragonFlyBSD4  = 0x98
 	sizeofRtMetricsDragonFlyBSD4 = 0x70
 
diff --git a/libgo/go/golang.org/x/text/unicode/bidi/tables11.0.0.go b/libgo/go/golang.org/x/text/unicode/bidi/tables11.0.0.go
index 022e3c6..16b11db 100644
--- a/libgo/go/golang.org/x/text/unicode/bidi/tables11.0.0.go
+++ b/libgo/go/golang.org/x/text/unicode/bidi/tables11.0.0.go
@@ -1,6 +1,6 @@
 // Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
 
-// +build go1.13
+// +build go1.13,!go1.14
 
 package bidi
 
diff --git a/libgo/go/golang.org/x/text/unicode/bidi/tables12.0.0.go b/libgo/go/golang.org/x/text/unicode/bidi/tables12.0.0.go
new file mode 100644
index 0000000..7ffa365
--- /dev/null
+++ b/libgo/go/golang.org/x/text/unicode/bidi/tables12.0.0.go
@@ -0,0 +1,1923 @@
+// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+
+// +build go1.14
+
+package bidi
+
+// UnicodeVersion is the Unicode version from which the tables in this package are derived.
+const UnicodeVersion = "12.0.0"
+
+// xorMasks contains masks to be xor-ed with brackets to get the reverse
+// version.
+var xorMasks = []int32{ // 8 elements
+	0, 1, 6, 7, 3, 15, 29, 63,
+} // Size: 56 bytes
+
+// lookup returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *bidiTrie) lookup(s []byte) (v uint8, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < 0x80: // is ASCII
+		return bidiValues[c0], 1
+	case c0 < 0xC2:
+		return 0, 1 // Illegal UTF-8: not a starter, not ASCII.
+	case c0 < 0xE0: // 2-byte UTF-8
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := bidiIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c1), 2
+	case c0 < 0xF0: // 3-byte UTF-8
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := bidiIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = bidiIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c2), 3
+	case c0 < 0xF8: // 4-byte UTF-8
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := bidiIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = bidiIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		o = uint32(i)<<6 + uint32(c2)
+		i = bidiIndex[o]
+		c3 := s[3]
+		if c3 < 0x80 || 0xC0 <= c3 {
+			return 0, 3 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must start with a full and valid UTF-8 encoded rune.
+func (t *bidiTrie) lookupUnsafe(s []byte) uint8 {
+	c0 := s[0]
+	if c0 < 0x80 { // is ASCII
+		return bidiValues[c0]
+	}
+	i := bidiIndex[c0]
+	if c0 < 0xE0 { // 2-byte UTF-8
+		return t.lookupValue(uint32(i), s[1])
+	}
+	i = bidiIndex[uint32(i)<<6+uint32(s[1])]
+	if c0 < 0xF0 { // 3-byte UTF-8
+		return t.lookupValue(uint32(i), s[2])
+	}
+	i = bidiIndex[uint32(i)<<6+uint32(s[2])]
+	if c0 < 0xF8 { // 4-byte UTF-8
+		return t.lookupValue(uint32(i), s[3])
+	}
+	return 0
+}
+
+// lookupString returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *bidiTrie) lookupString(s string) (v uint8, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < 0x80: // is ASCII
+		return bidiValues[c0], 1
+	case c0 < 0xC2:
+		return 0, 1 // Illegal UTF-8: not a starter, not ASCII.
+	case c0 < 0xE0: // 2-byte UTF-8
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := bidiIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c1), 2
+	case c0 < 0xF0: // 3-byte UTF-8
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := bidiIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = bidiIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c2), 3
+	case c0 < 0xF8: // 4-byte UTF-8
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := bidiIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = bidiIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		o = uint32(i)<<6 + uint32(c2)
+		i = bidiIndex[o]
+		c3 := s[3]
+		if c3 < 0x80 || 0xC0 <= c3 {
+			return 0, 3 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupStringUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must start with a full and valid UTF-8 encoded rune.
+func (t *bidiTrie) lookupStringUnsafe(s string) uint8 {
+	c0 := s[0]
+	if c0 < 0x80 { // is ASCII
+		return bidiValues[c0]
+	}
+	i := bidiIndex[c0]
+	if c0 < 0xE0 { // 2-byte UTF-8
+		return t.lookupValue(uint32(i), s[1])
+	}
+	i = bidiIndex[uint32(i)<<6+uint32(s[1])]
+	if c0 < 0xF0 { // 3-byte UTF-8
+		return t.lookupValue(uint32(i), s[2])
+	}
+	i = bidiIndex[uint32(i)<<6+uint32(s[2])]
+	if c0 < 0xF8 { // 4-byte UTF-8
+		return t.lookupValue(uint32(i), s[3])
+	}
+	return 0
+}
+
+// bidiTrie. Total size: 16896 bytes (16.50 KiB). Checksum: 6f0927067913dc6d.
+type bidiTrie struct{}
+
+func newBidiTrie(i int) *bidiTrie {
+	return &bidiTrie{}
+}
+
+// lookupValue determines the type of block n and looks up the value for b.
+func (t *bidiTrie) lookupValue(n uint32, b byte) uint8 {
+	switch {
+	default:
+		return uint8(bidiValues[n<<6+uint32(b)])
+	}
+}
+
+// bidiValues: 240 blocks, 15360 entries, 15360 bytes
+// The third block is the zero block.
+var bidiValues = [15360]uint8{
+	// Block 0x0, offset 0x0
+	0x00: 0x000b, 0x01: 0x000b, 0x02: 0x000b, 0x03: 0x000b, 0x04: 0x000b, 0x05: 0x000b,
+	0x06: 0x000b, 0x07: 0x000b, 0x08: 0x000b, 0x09: 0x0008, 0x0a: 0x0007, 0x0b: 0x0008,
+	0x0c: 0x0009, 0x0d: 0x0007, 0x0e: 0x000b, 0x0f: 0x000b, 0x10: 0x000b, 0x11: 0x000b,
+	0x12: 0x000b, 0x13: 0x000b, 0x14: 0x000b, 0x15: 0x000b, 0x16: 0x000b, 0x17: 0x000b,
+	0x18: 0x000b, 0x19: 0x000b, 0x1a: 0x000b, 0x1b: 0x000b, 0x1c: 0x0007, 0x1d: 0x0007,
+	0x1e: 0x0007, 0x1f: 0x0008, 0x20: 0x0009, 0x21: 0x000a, 0x22: 0x000a, 0x23: 0x0004,
+	0x24: 0x0004, 0x25: 0x0004, 0x26: 0x000a, 0x27: 0x000a, 0x28: 0x003a, 0x29: 0x002a,
+	0x2a: 0x000a, 0x2b: 0x0003, 0x2c: 0x0006, 0x2d: 0x0003, 0x2e: 0x0006, 0x2f: 0x0006,
+	0x30: 0x0002, 0x31: 0x0002, 0x32: 0x0002, 0x33: 0x0002, 0x34: 0x0002, 0x35: 0x0002,
+	0x36: 0x0002, 0x37: 0x0002, 0x38: 0x0002, 0x39: 0x0002, 0x3a: 0x0006, 0x3b: 0x000a,
+	0x3c: 0x000a, 0x3d: 0x000a, 0x3e: 0x000a, 0x3f: 0x000a,
+	// Block 0x1, offset 0x40
+	0x40: 0x000a,
+	0x5b: 0x005a, 0x5c: 0x000a, 0x5d: 0x004a,
+	0x5e: 0x000a, 0x5f: 0x000a, 0x60: 0x000a,
+	0x7b: 0x005a,
+	0x7c: 0x000a, 0x7d: 0x004a, 0x7e: 0x000a, 0x7f: 0x000b,
+	// Block 0x2, offset 0x80
+	// Block 0x3, offset 0xc0
+	0xc0: 0x000b, 0xc1: 0x000b, 0xc2: 0x000b, 0xc3: 0x000b, 0xc4: 0x000b, 0xc5: 0x0007,
+	0xc6: 0x000b, 0xc7: 0x000b, 0xc8: 0x000b, 0xc9: 0x000b, 0xca: 0x000b, 0xcb: 0x000b,
+	0xcc: 0x000b, 0xcd: 0x000b, 0xce: 0x000b, 0xcf: 0x000b, 0xd0: 0x000b, 0xd1: 0x000b,
+	0xd2: 0x000b, 0xd3: 0x000b, 0xd4: 0x000b, 0xd5: 0x000b, 0xd6: 0x000b, 0xd7: 0x000b,
+	0xd8: 0x000b, 0xd9: 0x000b, 0xda: 0x000b, 0xdb: 0x000b, 0xdc: 0x000b, 0xdd: 0x000b,
+	0xde: 0x000b, 0xdf: 0x000b, 0xe0: 0x0006, 0xe1: 0x000a, 0xe2: 0x0004, 0xe3: 0x0004,
+	0xe4: 0x0004, 0xe5: 0x0004, 0xe6: 0x000a, 0xe7: 0x000a, 0xe8: 0x000a, 0xe9: 0x000a,
+	0xeb: 0x000a, 0xec: 0x000a, 0xed: 0x000b, 0xee: 0x000a, 0xef: 0x000a,
+	0xf0: 0x0004, 0xf1: 0x0004, 0xf2: 0x0002, 0xf3: 0x0002, 0xf4: 0x000a,
+	0xf6: 0x000a, 0xf7: 0x000a, 0xf8: 0x000a, 0xf9: 0x0002, 0xfb: 0x000a,
+	0xfc: 0x000a, 0xfd: 0x000a, 0xfe: 0x000a, 0xff: 0x000a,
+	// Block 0x4, offset 0x100
+	0x117: 0x000a,
+	0x137: 0x000a,
+	// Block 0x5, offset 0x140
+	0x179: 0x000a, 0x17a: 0x000a,
+	// Block 0x6, offset 0x180
+	0x182: 0x000a, 0x183: 0x000a, 0x184: 0x000a, 0x185: 0x000a,
+	0x186: 0x000a, 0x187: 0x000a, 0x188: 0x000a, 0x189: 0x000a, 0x18a: 0x000a, 0x18b: 0x000a,
+	0x18c: 0x000a, 0x18d: 0x000a, 0x18e: 0x000a, 0x18f: 0x000a,
+	0x192: 0x000a, 0x193: 0x000a, 0x194: 0x000a, 0x195: 0x000a, 0x196: 0x000a, 0x197: 0x000a,
+	0x198: 0x000a, 0x199: 0x000a, 0x19a: 0x000a, 0x19b: 0x000a, 0x19c: 0x000a, 0x19d: 0x000a,
+	0x19e: 0x000a, 0x19f: 0x000a,
+	0x1a5: 0x000a, 0x1a6: 0x000a, 0x1a7: 0x000a, 0x1a8: 0x000a, 0x1a9: 0x000a,
+	0x1aa: 0x000a, 0x1ab: 0x000a, 0x1ac: 0x000a, 0x1ad: 0x000a, 0x1af: 0x000a,
+	0x1b0: 0x000a, 0x1b1: 0x000a, 0x1b2: 0x000a, 0x1b3: 0x000a, 0x1b4: 0x000a, 0x1b5: 0x000a,
+	0x1b6: 0x000a, 0x1b7: 0x000a, 0x1b8: 0x000a, 0x1b9: 0x000a, 0x1ba: 0x000a, 0x1bb: 0x000a,
+	0x1bc: 0x000a, 0x1bd: 0x000a, 0x1be: 0x000a, 0x1bf: 0x000a,
+	// Block 0x7, offset 0x1c0
+	0x1c0: 0x000c, 0x1c1: 0x000c, 0x1c2: 0x000c, 0x1c3: 0x000c, 0x1c4: 0x000c, 0x1c5: 0x000c,
+	0x1c6: 0x000c, 0x1c7: 0x000c, 0x1c8: 0x000c, 0x1c9: 0x000c, 0x1ca: 0x000c, 0x1cb: 0x000c,
+	0x1cc: 0x000c, 0x1cd: 0x000c, 0x1ce: 0x000c, 0x1cf: 0x000c, 0x1d0: 0x000c, 0x1d1: 0x000c,
+	0x1d2: 0x000c, 0x1d3: 0x000c, 0x1d4: 0x000c, 0x1d5: 0x000c, 0x1d6: 0x000c, 0x1d7: 0x000c,
+	0x1d8: 0x000c, 0x1d9: 0x000c, 0x1da: 0x000c, 0x1db: 0x000c, 0x1dc: 0x000c, 0x1dd: 0x000c,
+	0x1de: 0x000c, 0x1df: 0x000c, 0x1e0: 0x000c, 0x1e1: 0x000c, 0x1e2: 0x000c, 0x1e3: 0x000c,
+	0x1e4: 0x000c, 0x1e5: 0x000c, 0x1e6: 0x000c, 0x1e7: 0x000c, 0x1e8: 0x000c, 0x1e9: 0x000c,
+	0x1ea: 0x000c, 0x1eb: 0x000c, 0x1ec: 0x000c, 0x1ed: 0x000c, 0x1ee: 0x000c, 0x1ef: 0x000c,
+	0x1f0: 0x000c, 0x1f1: 0x000c, 0x1f2: 0x000c, 0x1f3: 0x000c, 0x1f4: 0x000c, 0x1f5: 0x000c,
+	0x1f6: 0x000c, 0x1f7: 0x000c, 0x1f8: 0x000c, 0x1f9: 0x000c, 0x1fa: 0x000c, 0x1fb: 0x000c,
+	0x1fc: 0x000c, 0x1fd: 0x000c, 0x1fe: 0x000c, 0x1ff: 0x000c,
+	// Block 0x8, offset 0x200
+	0x200: 0x000c, 0x201: 0x000c, 0x202: 0x000c, 0x203: 0x000c, 0x204: 0x000c, 0x205: 0x000c,
+	0x206: 0x000c, 0x207: 0x000c, 0x208: 0x000c, 0x209: 0x000c, 0x20a: 0x000c, 0x20b: 0x000c,
+	0x20c: 0x000c, 0x20d: 0x000c, 0x20e: 0x000c, 0x20f: 0x000c, 0x210: 0x000c, 0x211: 0x000c,
+	0x212: 0x000c, 0x213: 0x000c, 0x214: 0x000c, 0x215: 0x000c, 0x216: 0x000c, 0x217: 0x000c,
+	0x218: 0x000c, 0x219: 0x000c, 0x21a: 0x000c, 0x21b: 0x000c, 0x21c: 0x000c, 0x21d: 0x000c,
+	0x21e: 0x000c, 0x21f: 0x000c, 0x220: 0x000c, 0x221: 0x000c, 0x222: 0x000c, 0x223: 0x000c,
+	0x224: 0x000c, 0x225: 0x000c, 0x226: 0x000c, 0x227: 0x000c, 0x228: 0x000c, 0x229: 0x000c,
+	0x22a: 0x000c, 0x22b: 0x000c, 0x22c: 0x000c, 0x22d: 0x000c, 0x22e: 0x000c, 0x22f: 0x000c,
+	0x234: 0x000a, 0x235: 0x000a,
+	0x23e: 0x000a,
+	// Block 0x9, offset 0x240
+	0x244: 0x000a, 0x245: 0x000a,
+	0x247: 0x000a,
+	// Block 0xa, offset 0x280
+	0x2b6: 0x000a,
+	// Block 0xb, offset 0x2c0
+	0x2c3: 0x000c, 0x2c4: 0x000c, 0x2c5: 0x000c,
+	0x2c6: 0x000c, 0x2c7: 0x000c, 0x2c8: 0x000c, 0x2c9: 0x000c,
+	// Block 0xc, offset 0x300
+	0x30a: 0x000a,
+	0x30d: 0x000a, 0x30e: 0x000a, 0x30f: 0x0004, 0x310: 0x0001, 0x311: 0x000c,
+	0x312: 0x000c, 0x313: 0x000c, 0x314: 0x000c, 0x315: 0x000c, 0x316: 0x000c, 0x317: 0x000c,
+	0x318: 0x000c, 0x319: 0x000c, 0x31a: 0x000c, 0x31b: 0x000c, 0x31c: 0x000c, 0x31d: 0x000c,
+	0x31e: 0x000c, 0x31f: 0x000c, 0x320: 0x000c, 0x321: 0x000c, 0x322: 0x000c, 0x323: 0x000c,
+	0x324: 0x000c, 0x325: 0x000c, 0x326: 0x000c, 0x327: 0x000c, 0x328: 0x000c, 0x329: 0x000c,
+	0x32a: 0x000c, 0x32b: 0x000c, 0x32c: 0x000c, 0x32d: 0x000c, 0x32e: 0x000c, 0x32f: 0x000c,
+	0x330: 0x000c, 0x331: 0x000c, 0x332: 0x000c, 0x333: 0x000c, 0x334: 0x000c, 0x335: 0x000c,
+	0x336: 0x000c, 0x337: 0x000c, 0x338: 0x000c, 0x339: 0x000c, 0x33a: 0x000c, 0x33b: 0x000c,
+	0x33c: 0x000c, 0x33d: 0x000c, 0x33e: 0x0001, 0x33f: 0x000c,
+	// Block 0xd, offset 0x340
+	0x340: 0x0001, 0x341: 0x000c, 0x342: 0x000c, 0x343: 0x0001, 0x344: 0x000c, 0x345: 0x000c,
+	0x346: 0x0001, 0x347: 0x000c, 0x348: 0x0001, 0x349: 0x0001, 0x34a: 0x0001, 0x34b: 0x0001,
+	0x34c: 0x0001, 0x34d: 0x0001, 0x34e: 0x0001, 0x34f: 0x0001, 0x350: 0x0001, 0x351: 0x0001,
+	0x352: 0x0001, 0x353: 0x0001, 0x354: 0x0001, 0x355: 0x0001, 0x356: 0x0001, 0x357: 0x0001,
+	0x358: 0x0001, 0x359: 0x0001, 0x35a: 0x0001, 0x35b: 0x0001, 0x35c: 0x0001, 0x35d: 0x0001,
+	0x35e: 0x0001, 0x35f: 0x0001, 0x360: 0x0001, 0x361: 0x0001, 0x362: 0x0001, 0x363: 0x0001,
+	0x364: 0x0001, 0x365: 0x0001, 0x366: 0x0001, 0x367: 0x0001, 0x368: 0x0001, 0x369: 0x0001,
+	0x36a: 0x0001, 0x36b: 0x0001, 0x36c: 0x0001, 0x36d: 0x0001, 0x36e: 0x0001, 0x36f: 0x0001,
+	0x370: 0x0001, 0x371: 0x0001, 0x372: 0x0001, 0x373: 0x0001, 0x374: 0x0001, 0x375: 0x0001,
+	0x376: 0x0001, 0x377: 0x0001, 0x378: 0x0001, 0x379: 0x0001, 0x37a: 0x0001, 0x37b: 0x0001,
+	0x37c: 0x0001, 0x37d: 0x0001, 0x37e: 0x0001, 0x37f: 0x0001,
+	// Block 0xe, offset 0x380
+	0x380: 0x0005, 0x381: 0x0005, 0x382: 0x0005, 0x383: 0x0005, 0x384: 0x0005, 0x385: 0x0005,
+	0x386: 0x000a, 0x387: 0x000a, 0x388: 0x000d, 0x389: 0x0004, 0x38a: 0x0004, 0x38b: 0x000d,
+	0x38c: 0x0006, 0x38d: 0x000d, 0x38e: 0x000a, 0x38f: 0x000a, 0x390: 0x000c, 0x391: 0x000c,
+	0x392: 0x000c, 0x393: 0x000c, 0x394: 0x000c, 0x395: 0x000c, 0x396: 0x000c, 0x397: 0x000c,
+	0x398: 0x000c, 0x399: 0x000c, 0x39a: 0x000c, 0x39b: 0x000d, 0x39c: 0x000d, 0x39d: 0x000d,
+	0x39e: 0x000d, 0x39f: 0x000d, 0x3a0: 0x000d, 0x3a1: 0x000d, 0x3a2: 0x000d, 0x3a3: 0x000d,
+	0x3a4: 0x000d, 0x3a5: 0x000d, 0x3a6: 0x000d, 0x3a7: 0x000d, 0x3a8: 0x000d, 0x3a9: 0x000d,
+	0x3aa: 0x000d, 0x3ab: 0x000d, 0x3ac: 0x000d, 0x3ad: 0x000d, 0x3ae: 0x000d, 0x3af: 0x000d,
+	0x3b0: 0x000d, 0x3b1: 0x000d, 0x3b2: 0x000d, 0x3b3: 0x000d, 0x3b4: 0x000d, 0x3b5: 0x000d,
+	0x3b6: 0x000d, 0x3b7: 0x000d, 0x3b8: 0x000d, 0x3b9: 0x000d, 0x3ba: 0x000d, 0x3bb: 0x000d,
+	0x3bc: 0x000d, 0x3bd: 0x000d, 0x3be: 0x000d, 0x3bf: 0x000d,
+	// Block 0xf, offset 0x3c0
+	0x3c0: 0x000d, 0x3c1: 0x000d, 0x3c2: 0x000d, 0x3c3: 0x000d, 0x3c4: 0x000d, 0x3c5: 0x000d,
+	0x3c6: 0x000d, 0x3c7: 0x000d, 0x3c8: 0x000d, 0x3c9: 0x000d, 0x3ca: 0x000d, 0x3cb: 0x000c,
+	0x3cc: 0x000c, 0x3cd: 0x000c, 0x3ce: 0x000c, 0x3cf: 0x000c, 0x3d0: 0x000c, 0x3d1: 0x000c,
+	0x3d2: 0x000c, 0x3d3: 0x000c, 0x3d4: 0x000c, 0x3d5: 0x000c, 0x3d6: 0x000c, 0x3d7: 0x000c,
+	0x3d8: 0x000c, 0x3d9: 0x000c, 0x3da: 0x000c, 0x3db: 0x000c, 0x3dc: 0x000c, 0x3dd: 0x000c,
+	0x3de: 0x000c, 0x3df: 0x000c, 0x3e0: 0x0005, 0x3e1: 0x0005, 0x3e2: 0x0005, 0x3e3: 0x0005,
+	0x3e4: 0x0005, 0x3e5: 0x0005, 0x3e6: 0x0005, 0x3e7: 0x0005, 0x3e8: 0x0005, 0x3e9: 0x0005,
+	0x3ea: 0x0004, 0x3eb: 0x0005, 0x3ec: 0x0005, 0x3ed: 0x000d, 0x3ee: 0x000d, 0x3ef: 0x000d,
+	0x3f0: 0x000c, 0x3f1: 0x000d, 0x3f2: 0x000d, 0x3f3: 0x000d, 0x3f4: 0x000d, 0x3f5: 0x000d,
+	0x3f6: 0x000d, 0x3f7: 0x000d, 0x3f8: 0x000d, 0x3f9: 0x000d, 0x3fa: 0x000d, 0x3fb: 0x000d,
+	0x3fc: 0x000d, 0x3fd: 0x000d, 0x3fe: 0x000d, 0x3ff: 0x000d,
+	// Block 0x10, offset 0x400
+	0x400: 0x000d, 0x401: 0x000d, 0x402: 0x000d, 0x403: 0x000d, 0x404: 0x000d, 0x405: 0x000d,
+	0x406: 0x000d, 0x407: 0x000d, 0x408: 0x000d, 0x409: 0x000d, 0x40a: 0x000d, 0x40b: 0x000d,
+	0x40c: 0x000d, 0x40d: 0x000d, 0x40e: 0x000d, 0x40f: 0x000d, 0x410: 0x000d, 0x411: 0x000d,
+	0x412: 0x000d, 0x413: 0x000d, 0x414: 0x000d, 0x415: 0x000d, 0x416: 0x000d, 0x417: 0x000d,
+	0x418: 0x000d, 0x419: 0x000d, 0x41a: 0x000d, 0x41b: 0x000d, 0x41c: 0x000d, 0x41d: 0x000d,
+	0x41e: 0x000d, 0x41f: 0x000d, 0x420: 0x000d, 0x421: 0x000d, 0x422: 0x000d, 0x423: 0x000d,
+	0x424: 0x000d, 0x425: 0x000d, 0x426: 0x000d, 0x427: 0x000d, 0x428: 0x000d, 0x429: 0x000d,
+	0x42a: 0x000d, 0x42b: 0x000d, 0x42c: 0x000d, 0x42d: 0x000d, 0x42e: 0x000d, 0x42f: 0x000d,
+	0x430: 0x000d, 0x431: 0x000d, 0x432: 0x000d, 0x433: 0x000d, 0x434: 0x000d, 0x435: 0x000d,
+	0x436: 0x000d, 0x437: 0x000d, 0x438: 0x000d, 0x439: 0x000d, 0x43a: 0x000d, 0x43b: 0x000d,
+	0x43c: 0x000d, 0x43d: 0x000d, 0x43e: 0x000d, 0x43f: 0x000d,
+	// Block 0x11, offset 0x440
+	0x440: 0x000d, 0x441: 0x000d, 0x442: 0x000d, 0x443: 0x000d, 0x444: 0x000d, 0x445: 0x000d,
+	0x446: 0x000d, 0x447: 0x000d, 0x448: 0x000d, 0x449: 0x000d, 0x44a: 0x000d, 0x44b: 0x000d,
+	0x44c: 0x000d, 0x44d: 0x000d, 0x44e: 0x000d, 0x44f: 0x000d, 0x450: 0x000d, 0x451: 0x000d,
+	0x452: 0x000d, 0x453: 0x000d, 0x454: 0x000d, 0x455: 0x000d, 0x456: 0x000c, 0x457: 0x000c,
+	0x458: 0x000c, 0x459: 0x000c, 0x45a: 0x000c, 0x45b: 0x000c, 0x45c: 0x000c, 0x45d: 0x0005,
+	0x45e: 0x000a, 0x45f: 0x000c, 0x460: 0x000c, 0x461: 0x000c, 0x462: 0x000c, 0x463: 0x000c,
+	0x464: 0x000c, 0x465: 0x000d, 0x466: 0x000d, 0x467: 0x000c, 0x468: 0x000c, 0x469: 0x000a,
+	0x46a: 0x000c, 0x46b: 0x000c, 0x46c: 0x000c, 0x46d: 0x000c, 0x46e: 0x000d, 0x46f: 0x000d,
+	0x470: 0x0002, 0x471: 0x0002, 0x472: 0x0002, 0x473: 0x0002, 0x474: 0x0002, 0x475: 0x0002,
+	0x476: 0x0002, 0x477: 0x0002, 0x478: 0x0002, 0x479: 0x0002, 0x47a: 0x000d, 0x47b: 0x000d,
+	0x47c: 0x000d, 0x47d: 0x000d, 0x47e: 0x000d, 0x47f: 0x000d,
+	// Block 0x12, offset 0x480
+	0x480: 0x000d, 0x481: 0x000d, 0x482: 0x000d, 0x483: 0x000d, 0x484: 0x000d, 0x485: 0x000d,
+	0x486: 0x000d, 0x487: 0x000d, 0x488: 0x000d, 0x489: 0x000d, 0x48a: 0x000d, 0x48b: 0x000d,
+	0x48c: 0x000d, 0x48d: 0x000d, 0x48e: 0x000d, 0x48f: 0x000d, 0x490: 0x000d, 0x491: 0x000c,
+	0x492: 0x000d, 0x493: 0x000d, 0x494: 0x000d, 0x495: 0x000d, 0x496: 0x000d, 0x497: 0x000d,
+	0x498: 0x000d, 0x499: 0x000d, 0x49a: 0x000d, 0x49b: 0x000d, 0x49c: 0x000d, 0x49d: 0x000d,
+	0x49e: 0x000d, 0x49f: 0x000d, 0x4a0: 0x000d, 0x4a1: 0x000d, 0x4a2: 0x000d, 0x4a3: 0x000d,
+	0x4a4: 0x000d, 0x4a5: 0x000d, 0x4a6: 0x000d, 0x4a7: 0x000d, 0x4a8: 0x000d, 0x4a9: 0x000d,
+	0x4aa: 0x000d, 0x4ab: 0x000d, 0x4ac: 0x000d, 0x4ad: 0x000d, 0x4ae: 0x000d, 0x4af: 0x000d,
+	0x4b0: 0x000c, 0x4b1: 0x000c, 0x4b2: 0x000c, 0x4b3: 0x000c, 0x4b4: 0x000c, 0x4b5: 0x000c,
+	0x4b6: 0x000c, 0x4b7: 0x000c, 0x4b8: 0x000c, 0x4b9: 0x000c, 0x4ba: 0x000c, 0x4bb: 0x000c,
+	0x4bc: 0x000c, 0x4bd: 0x000c, 0x4be: 0x000c, 0x4bf: 0x000c,
+	// Block 0x13, offset 0x4c0
+	0x4c0: 0x000c, 0x4c1: 0x000c, 0x4c2: 0x000c, 0x4c3: 0x000c, 0x4c4: 0x000c, 0x4c5: 0x000c,
+	0x4c6: 0x000c, 0x4c7: 0x000c, 0x4c8: 0x000c, 0x4c9: 0x000c, 0x4ca: 0x000c, 0x4cb: 0x000d,
+	0x4cc: 0x000d, 0x4cd: 0x000d, 0x4ce: 0x000d, 0x4cf: 0x000d, 0x4d0: 0x000d, 0x4d1: 0x000d,
+	0x4d2: 0x000d, 0x4d3: 0x000d, 0x4d4: 0x000d, 0x4d5: 0x000d, 0x4d6: 0x000d, 0x4d7: 0x000d,
+	0x4d8: 0x000d, 0x4d9: 0x000d, 0x4da: 0x000d, 0x4db: 0x000d, 0x4dc: 0x000d, 0x4dd: 0x000d,
+	0x4de: 0x000d, 0x4df: 0x000d, 0x4e0: 0x000d, 0x4e1: 0x000d, 0x4e2: 0x000d, 0x4e3: 0x000d,
+	0x4e4: 0x000d, 0x4e5: 0x000d, 0x4e6: 0x000d, 0x4e7: 0x000d, 0x4e8: 0x000d, 0x4e9: 0x000d,
+	0x4ea: 0x000d, 0x4eb: 0x000d, 0x4ec: 0x000d, 0x4ed: 0x000d, 0x4ee: 0x000d, 0x4ef: 0x000d,
+	0x4f0: 0x000d, 0x4f1: 0x000d, 0x4f2: 0x000d, 0x4f3: 0x000d, 0x4f4: 0x000d, 0x4f5: 0x000d,
+	0x4f6: 0x000d, 0x4f7: 0x000d, 0x4f8: 0x000d, 0x4f9: 0x000d, 0x4fa: 0x000d, 0x4fb: 0x000d,
+	0x4fc: 0x000d, 0x4fd: 0x000d, 0x4fe: 0x000d, 0x4ff: 0x000d,
+	// Block 0x14, offset 0x500
+	0x500: 0x000d, 0x501: 0x000d, 0x502: 0x000d, 0x503: 0x000d, 0x504: 0x000d, 0x505: 0x000d,
+	0x506: 0x000d, 0x507: 0x000d, 0x508: 0x000d, 0x509: 0x000d, 0x50a: 0x000d, 0x50b: 0x000d,
+	0x50c: 0x000d, 0x50d: 0x000d, 0x50e: 0x000d, 0x50f: 0x000d, 0x510: 0x000d, 0x511: 0x000d,
+	0x512: 0x000d, 0x513: 0x000d, 0x514: 0x000d, 0x515: 0x000d, 0x516: 0x000d, 0x517: 0x000d,
+	0x518: 0x000d, 0x519: 0x000d, 0x51a: 0x000d, 0x51b: 0x000d, 0x51c: 0x000d, 0x51d: 0x000d,
+	0x51e: 0x000d, 0x51f: 0x000d, 0x520: 0x000d, 0x521: 0x000d, 0x522: 0x000d, 0x523: 0x000d,
+	0x524: 0x000d, 0x525: 0x000d, 0x526: 0x000c, 0x527: 0x000c, 0x528: 0x000c, 0x529: 0x000c,
+	0x52a: 0x000c, 0x52b: 0x000c, 0x52c: 0x000c, 0x52d: 0x000c, 0x52e: 0x000c, 0x52f: 0x000c,
+	0x530: 0x000c, 0x531: 0x000d, 0x532: 0x000d, 0x533: 0x000d, 0x534: 0x000d, 0x535: 0x000d,
+	0x536: 0x000d, 0x537: 0x000d, 0x538: 0x000d, 0x539: 0x000d, 0x53a: 0x000d, 0x53b: 0x000d,
+	0x53c: 0x000d, 0x53d: 0x000d, 0x53e: 0x000d, 0x53f: 0x000d,
+	// Block 0x15, offset 0x540
+	0x540: 0x0001, 0x541: 0x0001, 0x542: 0x0001, 0x543: 0x0001, 0x544: 0x0001, 0x545: 0x0001,
+	0x546: 0x0001, 0x547: 0x0001, 0x548: 0x0001, 0x549: 0x0001, 0x54a: 0x0001, 0x54b: 0x0001,
+	0x54c: 0x0001, 0x54d: 0x0001, 0x54e: 0x0001, 0x54f: 0x0001, 0x550: 0x0001, 0x551: 0x0001,
+	0x552: 0x0001, 0x553: 0x0001, 0x554: 0x0001, 0x555: 0x0001, 0x556: 0x0001, 0x557: 0x0001,
+	0x558: 0x0001, 0x559: 0x0001, 0x55a: 0x0001, 0x55b: 0x0001, 0x55c: 0x0001, 0x55d: 0x0001,
+	0x55e: 0x0001, 0x55f: 0x0001, 0x560: 0x0001, 0x561: 0x0001, 0x562: 0x0001, 0x563: 0x0001,
+	0x564: 0x0001, 0x565: 0x0001, 0x566: 0x0001, 0x567: 0x0001, 0x568: 0x0001, 0x569: 0x0001,
+	0x56a: 0x0001, 0x56b: 0x000c, 0x56c: 0x000c, 0x56d: 0x000c, 0x56e: 0x000c, 0x56f: 0x000c,
+	0x570: 0x000c, 0x571: 0x000c, 0x572: 0x000c, 0x573: 0x000c, 0x574: 0x0001, 0x575: 0x0001,
+	0x576: 0x000a, 0x577: 0x000a, 0x578: 0x000a, 0x579: 0x000a, 0x57a: 0x0001, 0x57b: 0x0001,
+	0x57c: 0x0001, 0x57d: 0x000c, 0x57e: 0x0001, 0x57f: 0x0001,
+	// Block 0x16, offset 0x580
+	0x580: 0x0001, 0x581: 0x0001, 0x582: 0x0001, 0x583: 0x0001, 0x584: 0x0001, 0x585: 0x0001,
+	0x586: 0x0001, 0x587: 0x0001, 0x588: 0x0001, 0x589: 0x0001, 0x58a: 0x0001, 0x58b: 0x0001,
+	0x58c: 0x0001, 0x58d: 0x0001, 0x58e: 0x0001, 0x58f: 0x0001, 0x590: 0x0001, 0x591: 0x0001,
+	0x592: 0x0001, 0x593: 0x0001, 0x594: 0x0001, 0x595: 0x0001, 0x596: 0x000c, 0x597: 0x000c,
+	0x598: 0x000c, 0x599: 0x000c, 0x59a: 0x0001, 0x59b: 0x000c, 0x59c: 0x000c, 0x59d: 0x000c,
+	0x59e: 0x000c, 0x59f: 0x000c, 0x5a0: 0x000c, 0x5a1: 0x000c, 0x5a2: 0x000c, 0x5a3: 0x000c,
+	0x5a4: 0x0001, 0x5a5: 0x000c, 0x5a6: 0x000c, 0x5a7: 0x000c, 0x5a8: 0x0001, 0x5a9: 0x000c,
+	0x5aa: 0x000c, 0x5ab: 0x000c, 0x5ac: 0x000c, 0x5ad: 0x000c, 0x5ae: 0x0001, 0x5af: 0x0001,
+	0x5b0: 0x0001, 0x5b1: 0x0001, 0x5b2: 0x0001, 0x5b3: 0x0001, 0x5b4: 0x0001, 0x5b5: 0x0001,
+	0x5b6: 0x0001, 0x5b7: 0x0001, 0x5b8: 0x0001, 0x5b9: 0x0001, 0x5ba: 0x0001, 0x5bb: 0x0001,
+	0x5bc: 0x0001, 0x5bd: 0x0001, 0x5be: 0x0001, 0x5bf: 0x0001,
+	// Block 0x17, offset 0x5c0
+	0x5c0: 0x0001, 0x5c1: 0x0001, 0x5c2: 0x0001, 0x5c3: 0x0001, 0x5c4: 0x0001, 0x5c5: 0x0001,
+	0x5c6: 0x0001, 0x5c7: 0x0001, 0x5c8: 0x0001, 0x5c9: 0x0001, 0x5ca: 0x0001, 0x5cb: 0x0001,
+	0x5cc: 0x0001, 0x5cd: 0x0001, 0x5ce: 0x0001, 0x5cf: 0x0001, 0x5d0: 0x0001, 0x5d1: 0x0001,
+	0x5d2: 0x0001, 0x5d3: 0x0001, 0x5d4: 0x0001, 0x5d5: 0x0001, 0x5d6: 0x0001, 0x5d7: 0x0001,
+	0x5d8: 0x0001, 0x5d9: 0x000c, 0x5da: 0x000c, 0x5db: 0x000c, 0x5dc: 0x0001, 0x5dd: 0x0001,
+	0x5de: 0x0001, 0x5df: 0x0001, 0x5e0: 0x000d, 0x5e1: 0x000d, 0x5e2: 0x000d, 0x5e3: 0x000d,
+	0x5e4: 0x000d, 0x5e5: 0x000d, 0x5e6: 0x000d, 0x5e7: 0x000d, 0x5e8: 0x000d, 0x5e9: 0x000d,
+	0x5ea: 0x000d, 0x5eb: 0x000d, 0x5ec: 0x000d, 0x5ed: 0x000d, 0x5ee: 0x000d, 0x5ef: 0x000d,
+	0x5f0: 0x0001, 0x5f1: 0x0001, 0x5f2: 0x0001, 0x5f3: 0x0001, 0x5f4: 0x0001, 0x5f5: 0x0001,
+	0x5f6: 0x0001, 0x5f7: 0x0001, 0x5f8: 0x0001, 0x5f9: 0x0001, 0x5fa: 0x0001, 0x5fb: 0x0001,
+	0x5fc: 0x0001, 0x5fd: 0x0001, 0x5fe: 0x0001, 0x5ff: 0x0001,
+	// Block 0x18, offset 0x600
+	0x600: 0x0001, 0x601: 0x0001, 0x602: 0x0001, 0x603: 0x0001, 0x604: 0x0001, 0x605: 0x0001,
+	0x606: 0x0001, 0x607: 0x0001, 0x608: 0x0001, 0x609: 0x0001, 0x60a: 0x0001, 0x60b: 0x0001,
+	0x60c: 0x0001, 0x60d: 0x0001, 0x60e: 0x0001, 0x60f: 0x0001, 0x610: 0x0001, 0x611: 0x0001,
+	0x612: 0x0001, 0x613: 0x0001, 0x614: 0x0001, 0x615: 0x0001, 0x616: 0x0001, 0x617: 0x0001,
+	0x618: 0x0001, 0x619: 0x0001, 0x61a: 0x0001, 0x61b: 0x0001, 0x61c: 0x0001, 0x61d: 0x0001,
+	0x61e: 0x0001, 0x61f: 0x0001, 0x620: 0x000d, 0x621: 0x000d, 0x622: 0x000d, 0x623: 0x000d,
+	0x624: 0x000d, 0x625: 0x000d, 0x626: 0x000d, 0x627: 0x000d, 0x628: 0x000d, 0x629: 0x000d,
+	0x62a: 0x000d, 0x62b: 0x000d, 0x62c: 0x000d, 0x62d: 0x000d, 0x62e: 0x000d, 0x62f: 0x000d,
+	0x630: 0x000d, 0x631: 0x000d, 0x632: 0x000d, 0x633: 0x000d, 0x634: 0x000d, 0x635: 0x000d,
+	0x636: 0x000d, 0x637: 0x000d, 0x638: 0x000d, 0x639: 0x000d, 0x63a: 0x000d, 0x63b: 0x000d,
+	0x63c: 0x000d, 0x63d: 0x000d, 0x63e: 0x000d, 0x63f: 0x000d,
+	// Block 0x19, offset 0x640
+	0x640: 0x000d, 0x641: 0x000d, 0x642: 0x000d, 0x643: 0x000d, 0x644: 0x000d, 0x645: 0x000d,
+	0x646: 0x000d, 0x647: 0x000d, 0x648: 0x000d, 0x649: 0x000d, 0x64a: 0x000d, 0x64b: 0x000d,
+	0x64c: 0x000d, 0x64d: 0x000d, 0x64e: 0x000d, 0x64f: 0x000d, 0x650: 0x000d, 0x651: 0x000d,
+	0x652: 0x000d, 0x653: 0x000c, 0x654: 0x000c, 0x655: 0x000c, 0x656: 0x000c, 0x657: 0x000c,
+	0x658: 0x000c, 0x659: 0x000c, 0x65a: 0x000c, 0x65b: 0x000c, 0x65c: 0x000c, 0x65d: 0x000c,
+	0x65e: 0x000c, 0x65f: 0x000c, 0x660: 0x000c, 0x661: 0x000c, 0x662: 0x0005, 0x663: 0x000c,
+	0x664: 0x000c, 0x665: 0x000c, 0x666: 0x000c, 0x667: 0x000c, 0x668: 0x000c, 0x669: 0x000c,
+	0x66a: 0x000c, 0x66b: 0x000c, 0x66c: 0x000c, 0x66d: 0x000c, 0x66e: 0x000c, 0x66f: 0x000c,
+	0x670: 0x000c, 0x671: 0x000c, 0x672: 0x000c, 0x673: 0x000c, 0x674: 0x000c, 0x675: 0x000c,
+	0x676: 0x000c, 0x677: 0x000c, 0x678: 0x000c, 0x679: 0x000c, 0x67a: 0x000c, 0x67b: 0x000c,
+	0x67c: 0x000c, 0x67d: 0x000c, 0x67e: 0x000c, 0x67f: 0x000c,
+	// Block 0x1a, offset 0x680
+	0x680: 0x000c, 0x681: 0x000c, 0x682: 0x000c,
+	0x6ba: 0x000c,
+	0x6bc: 0x000c,
+	// Block 0x1b, offset 0x6c0
+	0x6c1: 0x000c, 0x6c2: 0x000c, 0x6c3: 0x000c, 0x6c4: 0x000c, 0x6c5: 0x000c,
+	0x6c6: 0x000c, 0x6c7: 0x000c, 0x6c8: 0x000c,
+	0x6cd: 0x000c, 0x6d1: 0x000c,
+	0x6d2: 0x000c, 0x6d3: 0x000c, 0x6d4: 0x000c, 0x6d5: 0x000c, 0x6d6: 0x000c, 0x6d7: 0x000c,
+	0x6e2: 0x000c, 0x6e3: 0x000c,
+	// Block 0x1c, offset 0x700
+	0x701: 0x000c,
+	0x73c: 0x000c,
+	// Block 0x1d, offset 0x740
+	0x741: 0x000c, 0x742: 0x000c, 0x743: 0x000c, 0x744: 0x000c,
+	0x74d: 0x000c,
+	0x762: 0x000c, 0x763: 0x000c,
+	0x772: 0x0004, 0x773: 0x0004,
+	0x77b: 0x0004,
+	0x77e: 0x000c,
+	// Block 0x1e, offset 0x780
+	0x781: 0x000c, 0x782: 0x000c,
+	0x7bc: 0x000c,
+	// Block 0x1f, offset 0x7c0
+	0x7c1: 0x000c, 0x7c2: 0x000c,
+	0x7c7: 0x000c, 0x7c8: 0x000c, 0x7cb: 0x000c,
+	0x7cc: 0x000c, 0x7cd: 0x000c, 0x7d1: 0x000c,
+	0x7f0: 0x000c, 0x7f1: 0x000c, 0x7f5: 0x000c,
+	// Block 0x20, offset 0x800
+	0x801: 0x000c, 0x802: 0x000c, 0x803: 0x000c, 0x804: 0x000c, 0x805: 0x000c,
+	0x807: 0x000c, 0x808: 0x000c,
+	0x80d: 0x000c,
+	0x822: 0x000c, 0x823: 0x000c,
+	0x831: 0x0004,
+	0x83a: 0x000c, 0x83b: 0x000c,
+	0x83c: 0x000c, 0x83d: 0x000c, 0x83e: 0x000c, 0x83f: 0x000c,
+	// Block 0x21, offset 0x840
+	0x841: 0x000c,
+	0x87c: 0x000c, 0x87f: 0x000c,
+	// Block 0x22, offset 0x880
+	0x881: 0x000c, 0x882: 0x000c, 0x883: 0x000c, 0x884: 0x000c,
+	0x88d: 0x000c,
+	0x896: 0x000c,
+	0x8a2: 0x000c, 0x8a3: 0x000c,
+	// Block 0x23, offset 0x8c0
+	0x8c2: 0x000c,
+	// Block 0x24, offset 0x900
+	0x900: 0x000c,
+	0x90d: 0x000c,
+	0x933: 0x000a, 0x934: 0x000a, 0x935: 0x000a,
+	0x936: 0x000a, 0x937: 0x000a, 0x938: 0x000a, 0x939: 0x0004, 0x93a: 0x000a,
+	// Block 0x25, offset 0x940
+	0x940: 0x000c, 0x944: 0x000c,
+	0x97e: 0x000c, 0x97f: 0x000c,
+	// Block 0x26, offset 0x980
+	0x980: 0x000c,
+	0x986: 0x000c, 0x987: 0x000c, 0x988: 0x000c, 0x98a: 0x000c, 0x98b: 0x000c,
+	0x98c: 0x000c, 0x98d: 0x000c,
+	0x995: 0x000c, 0x996: 0x000c,
+	0x9a2: 0x000c, 0x9a3: 0x000c,
+	0x9b8: 0x000a, 0x9b9: 0x000a, 0x9ba: 0x000a, 0x9bb: 0x000a,
+	0x9bc: 0x000a, 0x9bd: 0x000a, 0x9be: 0x000a,
+	// Block 0x27, offset 0x9c0
+	0x9cc: 0x000c, 0x9cd: 0x000c,
+	0x9e2: 0x000c, 0x9e3: 0x000c,
+	// Block 0x28, offset 0xa00
+	0xa00: 0x000c, 0xa01: 0x000c,
+	0xa3b: 0x000c,
+	0xa3c: 0x000c,
+	// Block 0x29, offset 0xa40
+	0xa41: 0x000c, 0xa42: 0x000c, 0xa43: 0x000c, 0xa44: 0x000c,
+	0xa4d: 0x000c,
+	0xa62: 0x000c, 0xa63: 0x000c,
+	// Block 0x2a, offset 0xa80
+	0xa8a: 0x000c,
+	0xa92: 0x000c, 0xa93: 0x000c, 0xa94: 0x000c, 0xa96: 0x000c,
+	// Block 0x2b, offset 0xac0
+	0xaf1: 0x000c, 0xaf4: 0x000c, 0xaf5: 0x000c,
+	0xaf6: 0x000c, 0xaf7: 0x000c, 0xaf8: 0x000c, 0xaf9: 0x000c, 0xafa: 0x000c,
+	0xaff: 0x0004,
+	// Block 0x2c, offset 0xb00
+	0xb07: 0x000c, 0xb08: 0x000c, 0xb09: 0x000c, 0xb0a: 0x000c, 0xb0b: 0x000c,
+	0xb0c: 0x000c, 0xb0d: 0x000c, 0xb0e: 0x000c,
+	// Block 0x2d, offset 0xb40
+	0xb71: 0x000c, 0xb74: 0x000c, 0xb75: 0x000c,
+	0xb76: 0x000c, 0xb77: 0x000c, 0xb78: 0x000c, 0xb79: 0x000c, 0xb7a: 0x000c, 0xb7b: 0x000c,
+	0xb7c: 0x000c,
+	// Block 0x2e, offset 0xb80
+	0xb88: 0x000c, 0xb89: 0x000c, 0xb8a: 0x000c, 0xb8b: 0x000c,
+	0xb8c: 0x000c, 0xb8d: 0x000c,
+	// Block 0x2f, offset 0xbc0
+	0xbd8: 0x000c, 0xbd9: 0x000c,
+	0xbf5: 0x000c,
+	0xbf7: 0x000c, 0xbf9: 0x000c, 0xbfa: 0x003a, 0xbfb: 0x002a,
+	0xbfc: 0x003a, 0xbfd: 0x002a,
+	// Block 0x30, offset 0xc00
+	0xc31: 0x000c, 0xc32: 0x000c, 0xc33: 0x000c, 0xc34: 0x000c, 0xc35: 0x000c,
+	0xc36: 0x000c, 0xc37: 0x000c, 0xc38: 0x000c, 0xc39: 0x000c, 0xc3a: 0x000c, 0xc3b: 0x000c,
+	0xc3c: 0x000c, 0xc3d: 0x000c, 0xc3e: 0x000c,
+	// Block 0x31, offset 0xc40
+	0xc40: 0x000c, 0xc41: 0x000c, 0xc42: 0x000c, 0xc43: 0x000c, 0xc44: 0x000c,
+	0xc46: 0x000c, 0xc47: 0x000c,
+	0xc4d: 0x000c, 0xc4e: 0x000c, 0xc4f: 0x000c, 0xc50: 0x000c, 0xc51: 0x000c,
+	0xc52: 0x000c, 0xc53: 0x000c, 0xc54: 0x000c, 0xc55: 0x000c, 0xc56: 0x000c, 0xc57: 0x000c,
+	0xc59: 0x000c, 0xc5a: 0x000c, 0xc5b: 0x000c, 0xc5c: 0x000c, 0xc5d: 0x000c,
+	0xc5e: 0x000c, 0xc5f: 0x000c, 0xc60: 0x000c, 0xc61: 0x000c, 0xc62: 0x000c, 0xc63: 0x000c,
+	0xc64: 0x000c, 0xc65: 0x000c, 0xc66: 0x000c, 0xc67: 0x000c, 0xc68: 0x000c, 0xc69: 0x000c,
+	0xc6a: 0x000c, 0xc6b: 0x000c, 0xc6c: 0x000c, 0xc6d: 0x000c, 0xc6e: 0x000c, 0xc6f: 0x000c,
+	0xc70: 0x000c, 0xc71: 0x000c, 0xc72: 0x000c, 0xc73: 0x000c, 0xc74: 0x000c, 0xc75: 0x000c,
+	0xc76: 0x000c, 0xc77: 0x000c, 0xc78: 0x000c, 0xc79: 0x000c, 0xc7a: 0x000c, 0xc7b: 0x000c,
+	0xc7c: 0x000c,
+	// Block 0x32, offset 0xc80
+	0xc86: 0x000c,
+	// Block 0x33, offset 0xcc0
+	0xced: 0x000c, 0xcee: 0x000c, 0xcef: 0x000c,
+	0xcf0: 0x000c, 0xcf2: 0x000c, 0xcf3: 0x000c, 0xcf4: 0x000c, 0xcf5: 0x000c,
+	0xcf6: 0x000c, 0xcf7: 0x000c, 0xcf9: 0x000c, 0xcfa: 0x000c,
+	0xcfd: 0x000c, 0xcfe: 0x000c,
+	// Block 0x34, offset 0xd00
+	0xd18: 0x000c, 0xd19: 0x000c,
+	0xd1e: 0x000c, 0xd1f: 0x000c, 0xd20: 0x000c,
+	0xd31: 0x000c, 0xd32: 0x000c, 0xd33: 0x000c, 0xd34: 0x000c,
+	// Block 0x35, offset 0xd40
+	0xd42: 0x000c, 0xd45: 0x000c,
+	0xd46: 0x000c,
+	0xd4d: 0x000c,
+	0xd5d: 0x000c,
+	// Block 0x36, offset 0xd80
+	0xd9d: 0x000c,
+	0xd9e: 0x000c, 0xd9f: 0x000c,
+	// Block 0x37, offset 0xdc0
+	0xdd0: 0x000a, 0xdd1: 0x000a,
+	0xdd2: 0x000a, 0xdd3: 0x000a, 0xdd4: 0x000a, 0xdd5: 0x000a, 0xdd6: 0x000a, 0xdd7: 0x000a,
+	0xdd8: 0x000a, 0xdd9: 0x000a,
+	// Block 0x38, offset 0xe00
+	0xe00: 0x000a,
+	// Block 0x39, offset 0xe40
+	0xe40: 0x0009,
+	0xe5b: 0x007a, 0xe5c: 0x006a,
+	// Block 0x3a, offset 0xe80
+	0xe92: 0x000c, 0xe93: 0x000c, 0xe94: 0x000c,
+	0xeb2: 0x000c, 0xeb3: 0x000c, 0xeb4: 0x000c,
+	// Block 0x3b, offset 0xec0
+	0xed2: 0x000c, 0xed3: 0x000c,
+	0xef2: 0x000c, 0xef3: 0x000c,
+	// Block 0x3c, offset 0xf00
+	0xf34: 0x000c, 0xf35: 0x000c,
+	0xf37: 0x000c, 0xf38: 0x000c, 0xf39: 0x000c, 0xf3a: 0x000c, 0xf3b: 0x000c,
+	0xf3c: 0x000c, 0xf3d: 0x000c,
+	// Block 0x3d, offset 0xf40
+	0xf46: 0x000c, 0xf49: 0x000c, 0xf4a: 0x000c, 0xf4b: 0x000c,
+	0xf4c: 0x000c, 0xf4d: 0x000c, 0xf4e: 0x000c, 0xf4f: 0x000c, 0xf50: 0x000c, 0xf51: 0x000c,
+	0xf52: 0x000c, 0xf53: 0x000c,
+	0xf5b: 0x0004, 0xf5d: 0x000c,
+	0xf70: 0x000a, 0xf71: 0x000a, 0xf72: 0x000a, 0xf73: 0x000a, 0xf74: 0x000a, 0xf75: 0x000a,
+	0xf76: 0x000a, 0xf77: 0x000a, 0xf78: 0x000a, 0xf79: 0x000a,
+	// Block 0x3e, offset 0xf80
+	0xf80: 0x000a, 0xf81: 0x000a, 0xf82: 0x000a, 0xf83: 0x000a, 0xf84: 0x000a, 0xf85: 0x000a,
+	0xf86: 0x000a, 0xf87: 0x000a, 0xf88: 0x000a, 0xf89: 0x000a, 0xf8a: 0x000a, 0xf8b: 0x000c,
+	0xf8c: 0x000c, 0xf8d: 0x000c, 0xf8e: 0x000b,
+	// Block 0x3f, offset 0xfc0
+	0xfc5: 0x000c,
+	0xfc6: 0x000c,
+	0xfe9: 0x000c,
+	// Block 0x40, offset 0x1000
+	0x1020: 0x000c, 0x1021: 0x000c, 0x1022: 0x000c,
+	0x1027: 0x000c, 0x1028: 0x000c,
+	0x1032: 0x000c,
+	0x1039: 0x000c, 0x103a: 0x000c, 0x103b: 0x000c,
+	// Block 0x41, offset 0x1040
+	0x1040: 0x000a, 0x1044: 0x000a, 0x1045: 0x000a,
+	// Block 0x42, offset 0x1080
+	0x109e: 0x000a, 0x109f: 0x000a, 0x10a0: 0x000a, 0x10a1: 0x000a, 0x10a2: 0x000a, 0x10a3: 0x000a,
+	0x10a4: 0x000a, 0x10a5: 0x000a, 0x10a6: 0x000a, 0x10a7: 0x000a, 0x10a8: 0x000a, 0x10a9: 0x000a,
+	0x10aa: 0x000a, 0x10ab: 0x000a, 0x10ac: 0x000a, 0x10ad: 0x000a, 0x10ae: 0x000a, 0x10af: 0x000a,
+	0x10b0: 0x000a, 0x10b1: 0x000a, 0x10b2: 0x000a, 0x10b3: 0x000a, 0x10b4: 0x000a, 0x10b5: 0x000a,
+	0x10b6: 0x000a, 0x10b7: 0x000a, 0x10b8: 0x000a, 0x10b9: 0x000a, 0x10ba: 0x000a, 0x10bb: 0x000a,
+	0x10bc: 0x000a, 0x10bd: 0x000a, 0x10be: 0x000a, 0x10bf: 0x000a,
+	// Block 0x43, offset 0x10c0
+	0x10d7: 0x000c,
+	0x10d8: 0x000c, 0x10db: 0x000c,
+	// Block 0x44, offset 0x1100
+	0x1116: 0x000c,
+	0x1118: 0x000c, 0x1119: 0x000c, 0x111a: 0x000c, 0x111b: 0x000c, 0x111c: 0x000c, 0x111d: 0x000c,
+	0x111e: 0x000c, 0x1120: 0x000c, 0x1122: 0x000c,
+	0x1125: 0x000c, 0x1126: 0x000c, 0x1127: 0x000c, 0x1128: 0x000c, 0x1129: 0x000c,
+	0x112a: 0x000c, 0x112b: 0x000c, 0x112c: 0x000c,
+	0x1133: 0x000c, 0x1134: 0x000c, 0x1135: 0x000c,
+	0x1136: 0x000c, 0x1137: 0x000c, 0x1138: 0x000c, 0x1139: 0x000c, 0x113a: 0x000c, 0x113b: 0x000c,
+	0x113c: 0x000c, 0x113f: 0x000c,
+	// Block 0x45, offset 0x1140
+	0x1170: 0x000c, 0x1171: 0x000c, 0x1172: 0x000c, 0x1173: 0x000c, 0x1174: 0x000c, 0x1175: 0x000c,
+	0x1176: 0x000c, 0x1177: 0x000c, 0x1178: 0x000c, 0x1179: 0x000c, 0x117a: 0x000c, 0x117b: 0x000c,
+	0x117c: 0x000c, 0x117d: 0x000c, 0x117e: 0x000c,
+	// Block 0x46, offset 0x1180
+	0x1180: 0x000c, 0x1181: 0x000c, 0x1182: 0x000c, 0x1183: 0x000c,
+	0x11b4: 0x000c,
+	0x11b6: 0x000c, 0x11b7: 0x000c, 0x11b8: 0x000c, 0x11b9: 0x000c, 0x11ba: 0x000c,
+	0x11bc: 0x000c,
+	// Block 0x47, offset 0x11c0
+	0x11c2: 0x000c,
+	0x11eb: 0x000c, 0x11ec: 0x000c, 0x11ed: 0x000c, 0x11ee: 0x000c, 0x11ef: 0x000c,
+	0x11f0: 0x000c, 0x11f1: 0x000c, 0x11f2: 0x000c, 0x11f3: 0x000c,
+	// Block 0x48, offset 0x1200
+	0x1200: 0x000c, 0x1201: 0x000c,
+	0x1222: 0x000c, 0x1223: 0x000c,
+	0x1224: 0x000c, 0x1225: 0x000c, 0x1228: 0x000c, 0x1229: 0x000c,
+	0x122b: 0x000c, 0x122c: 0x000c, 0x122d: 0x000c,
+	// Block 0x49, offset 0x1240
+	0x1266: 0x000c, 0x1268: 0x000c, 0x1269: 0x000c,
+	0x126d: 0x000c, 0x126f: 0x000c,
+	0x1270: 0x000c, 0x1271: 0x000c,
+	// Block 0x4a, offset 0x1280
+	0x12ac: 0x000c, 0x12ad: 0x000c, 0x12ae: 0x000c, 0x12af: 0x000c,
+	0x12b0: 0x000c, 0x12b1: 0x000c, 0x12b2: 0x000c, 0x12b3: 0x000c,
+	0x12b6: 0x000c, 0x12b7: 0x000c,
+	// Block 0x4b, offset 0x12c0
+	0x12d0: 0x000c, 0x12d1: 0x000c,
+	0x12d2: 0x000c, 0x12d4: 0x000c, 0x12d5: 0x000c, 0x12d6: 0x000c, 0x12d7: 0x000c,
+	0x12d8: 0x000c, 0x12d9: 0x000c, 0x12da: 0x000c, 0x12db: 0x000c, 0x12dc: 0x000c, 0x12dd: 0x000c,
+	0x12de: 0x000c, 0x12df: 0x000c, 0x12e0: 0x000c, 0x12e2: 0x000c, 0x12e3: 0x000c,
+	0x12e4: 0x000c, 0x12e5: 0x000c, 0x12e6: 0x000c, 0x12e7: 0x000c, 0x12e8: 0x000c,
+	0x12ed: 0x000c,
+	0x12f4: 0x000c,
+	0x12f8: 0x000c, 0x12f9: 0x000c,
+	// Block 0x4c, offset 0x1300
+	0x1300: 0x000c, 0x1301: 0x000c, 0x1302: 0x000c, 0x1303: 0x000c, 0x1304: 0x000c, 0x1305: 0x000c,
+	0x1306: 0x000c, 0x1307: 0x000c, 0x1308: 0x000c, 0x1309: 0x000c, 0x130a: 0x000c, 0x130b: 0x000c,
+	0x130c: 0x000c, 0x130d: 0x000c, 0x130e: 0x000c, 0x130f: 0x000c, 0x1310: 0x000c, 0x1311: 0x000c,
+	0x1312: 0x000c, 0x1313: 0x000c, 0x1314: 0x000c, 0x1315: 0x000c, 0x1316: 0x000c, 0x1317: 0x000c,
+	0x1318: 0x000c, 0x1319: 0x000c, 0x131a: 0x000c, 0x131b: 0x000c, 0x131c: 0x000c, 0x131d: 0x000c,
+	0x131e: 0x000c, 0x131f: 0x000c, 0x1320: 0x000c, 0x1321: 0x000c, 0x1322: 0x000c, 0x1323: 0x000c,
+	0x1324: 0x000c, 0x1325: 0x000c, 0x1326: 0x000c, 0x1327: 0x000c, 0x1328: 0x000c, 0x1329: 0x000c,
+	0x132a: 0x000c, 0x132b: 0x000c, 0x132c: 0x000c, 0x132d: 0x000c, 0x132e: 0x000c, 0x132f: 0x000c,
+	0x1330: 0x000c, 0x1331: 0x000c, 0x1332: 0x000c, 0x1333: 0x000c, 0x1334: 0x000c, 0x1335: 0x000c,
+	0x1336: 0x000c, 0x1337: 0x000c, 0x1338: 0x000c, 0x1339: 0x000c, 0x133b: 0x000c,
+	0x133c: 0x000c, 0x133d: 0x000c, 0x133e: 0x000c, 0x133f: 0x000c,
+	// Block 0x4d, offset 0x1340
+	0x137d: 0x000a, 0x137f: 0x000a,
+	// Block 0x4e, offset 0x1380
+	0x1380: 0x000a, 0x1381: 0x000a,
+	0x138d: 0x000a, 0x138e: 0x000a, 0x138f: 0x000a,
+	0x139d: 0x000a,
+	0x139e: 0x000a, 0x139f: 0x000a,
+	0x13ad: 0x000a, 0x13ae: 0x000a, 0x13af: 0x000a,
+	0x13bd: 0x000a, 0x13be: 0x000a,
+	// Block 0x4f, offset 0x13c0
+	0x13c0: 0x0009, 0x13c1: 0x0009, 0x13c2: 0x0009, 0x13c3: 0x0009, 0x13c4: 0x0009, 0x13c5: 0x0009,
+	0x13c6: 0x0009, 0x13c7: 0x0009, 0x13c8: 0x0009, 0x13c9: 0x0009, 0x13ca: 0x0009, 0x13cb: 0x000b,
+	0x13cc: 0x000b, 0x13cd: 0x000b, 0x13cf: 0x0001, 0x13d0: 0x000a, 0x13d1: 0x000a,
+	0x13d2: 0x000a, 0x13d3: 0x000a, 0x13d4: 0x000a, 0x13d5: 0x000a, 0x13d6: 0x000a, 0x13d7: 0x000a,
+	0x13d8: 0x000a, 0x13d9: 0x000a, 0x13da: 0x000a, 0x13db: 0x000a, 0x13dc: 0x000a, 0x13dd: 0x000a,
+	0x13de: 0x000a, 0x13df: 0x000a, 0x13e0: 0x000a, 0x13e1: 0x000a, 0x13e2: 0x000a, 0x13e3: 0x000a,
+	0x13e4: 0x000a, 0x13e5: 0x000a, 0x13e6: 0x000a, 0x13e7: 0x000a, 0x13e8: 0x0009, 0x13e9: 0x0007,
+	0x13ea: 0x000e, 0x13eb: 0x000e, 0x13ec: 0x000e, 0x13ed: 0x000e, 0x13ee: 0x000e, 0x13ef: 0x0006,
+	0x13f0: 0x0004, 0x13f1: 0x0004, 0x13f2: 0x0004, 0x13f3: 0x0004, 0x13f4: 0x0004, 0x13f5: 0x000a,
+	0x13f6: 0x000a, 0x13f7: 0x000a, 0x13f8: 0x000a, 0x13f9: 0x000a, 0x13fa: 0x000a, 0x13fb: 0x000a,
+	0x13fc: 0x000a, 0x13fd: 0x000a, 0x13fe: 0x000a, 0x13ff: 0x000a,
+	// Block 0x50, offset 0x1400
+	0x1400: 0x000a, 0x1401: 0x000a, 0x1402: 0x000a, 0x1403: 0x000a, 0x1404: 0x0006, 0x1405: 0x009a,
+	0x1406: 0x008a, 0x1407: 0x000a, 0x1408: 0x000a, 0x1409: 0x000a, 0x140a: 0x000a, 0x140b: 0x000a,
+	0x140c: 0x000a, 0x140d: 0x000a, 0x140e: 0x000a, 0x140f: 0x000a, 0x1410: 0x000a, 0x1411: 0x000a,
+	0x1412: 0x000a, 0x1413: 0x000a, 0x1414: 0x000a, 0x1415: 0x000a, 0x1416: 0x000a, 0x1417: 0x000a,
+	0x1418: 0x000a, 0x1419: 0x000a, 0x141a: 0x000a, 0x141b: 0x000a, 0x141c: 0x000a, 0x141d: 0x000a,
+	0x141e: 0x000a, 0x141f: 0x0009, 0x1420: 0x000b, 0x1421: 0x000b, 0x1422: 0x000b, 0x1423: 0x000b,
+	0x1424: 0x000b, 0x1425: 0x000b, 0x1426: 0x000e, 0x1427: 0x000e, 0x1428: 0x000e, 0x1429: 0x000e,
+	0x142a: 0x000b, 0x142b: 0x000b, 0x142c: 0x000b, 0x142d: 0x000b, 0x142e: 0x000b, 0x142f: 0x000b,
+	0x1430: 0x0002, 0x1434: 0x0002, 0x1435: 0x0002,
+	0x1436: 0x0002, 0x1437: 0x0002, 0x1438: 0x0002, 0x1439: 0x0002, 0x143a: 0x0003, 0x143b: 0x0003,
+	0x143c: 0x000a, 0x143d: 0x009a, 0x143e: 0x008a,
+	// Block 0x51, offset 0x1440
+	0x1440: 0x0002, 0x1441: 0x0002, 0x1442: 0x0002, 0x1443: 0x0002, 0x1444: 0x0002, 0x1445: 0x0002,
+	0x1446: 0x0002, 0x1447: 0x0002, 0x1448: 0x0002, 0x1449: 0x0002, 0x144a: 0x0003, 0x144b: 0x0003,
+	0x144c: 0x000a, 0x144d: 0x009a, 0x144e: 0x008a,
+	0x1460: 0x0004, 0x1461: 0x0004, 0x1462: 0x0004, 0x1463: 0x0004,
+	0x1464: 0x0004, 0x1465: 0x0004, 0x1466: 0x0004, 0x1467: 0x0004, 0x1468: 0x0004, 0x1469: 0x0004,
+	0x146a: 0x0004, 0x146b: 0x0004, 0x146c: 0x0004, 0x146d: 0x0004, 0x146e: 0x0004, 0x146f: 0x0004,
+	0x1470: 0x0004, 0x1471: 0x0004, 0x1472: 0x0004, 0x1473: 0x0004, 0x1474: 0x0004, 0x1475: 0x0004,
+	0x1476: 0x0004, 0x1477: 0x0004, 0x1478: 0x0004, 0x1479: 0x0004, 0x147a: 0x0004, 0x147b: 0x0004,
+	0x147c: 0x0004, 0x147d: 0x0004, 0x147e: 0x0004, 0x147f: 0x0004,
+	// Block 0x52, offset 0x1480
+	0x1480: 0x0004, 0x1481: 0x0004, 0x1482: 0x0004, 0x1483: 0x0004, 0x1484: 0x0004, 0x1485: 0x0004,
+	0x1486: 0x0004, 0x1487: 0x0004, 0x1488: 0x0004, 0x1489: 0x0004, 0x148a: 0x0004, 0x148b: 0x0004,
+	0x148c: 0x0004, 0x148d: 0x0004, 0x148e: 0x0004, 0x148f: 0x0004, 0x1490: 0x000c, 0x1491: 0x000c,
+	0x1492: 0x000c, 0x1493: 0x000c, 0x1494: 0x000c, 0x1495: 0x000c, 0x1496: 0x000c, 0x1497: 0x000c,
+	0x1498: 0x000c, 0x1499: 0x000c, 0x149a: 0x000c, 0x149b: 0x000c, 0x149c: 0x000c, 0x149d: 0x000c,
+	0x149e: 0x000c, 0x149f: 0x000c, 0x14a0: 0x000c, 0x14a1: 0x000c, 0x14a2: 0x000c, 0x14a3: 0x000c,
+	0x14a4: 0x000c, 0x14a5: 0x000c, 0x14a6: 0x000c, 0x14a7: 0x000c, 0x14a8: 0x000c, 0x14a9: 0x000c,
+	0x14aa: 0x000c, 0x14ab: 0x000c, 0x14ac: 0x000c, 0x14ad: 0x000c, 0x14ae: 0x000c, 0x14af: 0x000c,
+	0x14b0: 0x000c,
+	// Block 0x53, offset 0x14c0
+	0x14c0: 0x000a, 0x14c1: 0x000a, 0x14c3: 0x000a, 0x14c4: 0x000a, 0x14c5: 0x000a,
+	0x14c6: 0x000a, 0x14c8: 0x000a, 0x14c9: 0x000a,
+	0x14d4: 0x000a, 0x14d6: 0x000a, 0x14d7: 0x000a,
+	0x14d8: 0x000a,
+	0x14de: 0x000a, 0x14df: 0x000a, 0x14e0: 0x000a, 0x14e1: 0x000a, 0x14e2: 0x000a, 0x14e3: 0x000a,
+	0x14e5: 0x000a, 0x14e7: 0x000a, 0x14e9: 0x000a,
+	0x14ee: 0x0004,
+	0x14fa: 0x000a, 0x14fb: 0x000a,
+	// Block 0x54, offset 0x1500
+	0x1500: 0x000a, 0x1501: 0x000a, 0x1502: 0x000a, 0x1503: 0x000a, 0x1504: 0x000a,
+	0x150a: 0x000a, 0x150b: 0x000a,
+	0x150c: 0x000a, 0x150d: 0x000a, 0x1510: 0x000a, 0x1511: 0x000a,
+	0x1512: 0x000a, 0x1513: 0x000a, 0x1514: 0x000a, 0x1515: 0x000a, 0x1516: 0x000a, 0x1517: 0x000a,
+	0x1518: 0x000a, 0x1519: 0x000a, 0x151a: 0x000a, 0x151b: 0x000a, 0x151c: 0x000a, 0x151d: 0x000a,
+	0x151e: 0x000a, 0x151f: 0x000a,
+	// Block 0x55, offset 0x1540
+	0x1549: 0x000a, 0x154a: 0x000a, 0x154b: 0x000a,
+	0x1550: 0x000a, 0x1551: 0x000a,
+	0x1552: 0x000a, 0x1553: 0x000a, 0x1554: 0x000a, 0x1555: 0x000a, 0x1556: 0x000a, 0x1557: 0x000a,
+	0x1558: 0x000a, 0x1559: 0x000a, 0x155a: 0x000a, 0x155b: 0x000a, 0x155c: 0x000a, 0x155d: 0x000a,
+	0x155e: 0x000a, 0x155f: 0x000a, 0x1560: 0x000a, 0x1561: 0x000a, 0x1562: 0x000a, 0x1563: 0x000a,
+	0x1564: 0x000a, 0x1565: 0x000a, 0x1566: 0x000a, 0x1567: 0x000a, 0x1568: 0x000a, 0x1569: 0x000a,
+	0x156a: 0x000a, 0x156b: 0x000a, 0x156c: 0x000a, 0x156d: 0x000a, 0x156e: 0x000a, 0x156f: 0x000a,
+	0x1570: 0x000a, 0x1571: 0x000a, 0x1572: 0x000a, 0x1573: 0x000a, 0x1574: 0x000a, 0x1575: 0x000a,
+	0x1576: 0x000a, 0x1577: 0x000a, 0x1578: 0x000a, 0x1579: 0x000a, 0x157a: 0x000a, 0x157b: 0x000a,
+	0x157c: 0x000a, 0x157d: 0x000a, 0x157e: 0x000a, 0x157f: 0x000a,
+	// Block 0x56, offset 0x1580
+	0x1580: 0x000a, 0x1581: 0x000a, 0x1582: 0x000a, 0x1583: 0x000a, 0x1584: 0x000a, 0x1585: 0x000a,
+	0x1586: 0x000a, 0x1587: 0x000a, 0x1588: 0x000a, 0x1589: 0x000a, 0x158a: 0x000a, 0x158b: 0x000a,
+	0x158c: 0x000a, 0x158d: 0x000a, 0x158e: 0x000a, 0x158f: 0x000a, 0x1590: 0x000a, 0x1591: 0x000a,
+	0x1592: 0x000a, 0x1593: 0x000a, 0x1594: 0x000a, 0x1595: 0x000a, 0x1596: 0x000a, 0x1597: 0x000a,
+	0x1598: 0x000a, 0x1599: 0x000a, 0x159a: 0x000a, 0x159b: 0x000a, 0x159c: 0x000a, 0x159d: 0x000a,
+	0x159e: 0x000a, 0x159f: 0x000a, 0x15a0: 0x000a, 0x15a1: 0x000a, 0x15a2: 0x000a, 0x15a3: 0x000a,
+	0x15a4: 0x000a, 0x15a5: 0x000a, 0x15a6: 0x000a, 0x15a7: 0x000a, 0x15a8: 0x000a, 0x15a9: 0x000a,
+	0x15aa: 0x000a, 0x15ab: 0x000a, 0x15ac: 0x000a, 0x15ad: 0x000a, 0x15ae: 0x000a, 0x15af: 0x000a,
+	0x15b0: 0x000a, 0x15b1: 0x000a, 0x15b2: 0x000a, 0x15b3: 0x000a, 0x15b4: 0x000a, 0x15b5: 0x000a,
+	0x15b6: 0x000a, 0x15b7: 0x000a, 0x15b8: 0x000a, 0x15b9: 0x000a, 0x15ba: 0x000a, 0x15bb: 0x000a,
+	0x15bc: 0x000a, 0x15bd: 0x000a, 0x15be: 0x000a, 0x15bf: 0x000a,
+	// Block 0x57, offset 0x15c0
+	0x15c0: 0x000a, 0x15c1: 0x000a, 0x15c2: 0x000a, 0x15c3: 0x000a, 0x15c4: 0x000a, 0x15c5: 0x000a,
+	0x15c6: 0x000a, 0x15c7: 0x000a, 0x15c8: 0x000a, 0x15c9: 0x000a, 0x15ca: 0x000a, 0x15cb: 0x000a,
+	0x15cc: 0x000a, 0x15cd: 0x000a, 0x15ce: 0x000a, 0x15cf: 0x000a, 0x15d0: 0x000a, 0x15d1: 0x000a,
+	0x15d2: 0x0003, 0x15d3: 0x0004, 0x15d4: 0x000a, 0x15d5: 0x000a, 0x15d6: 0x000a, 0x15d7: 0x000a,
+	0x15d8: 0x000a, 0x15d9: 0x000a, 0x15da: 0x000a, 0x15db: 0x000a, 0x15dc: 0x000a, 0x15dd: 0x000a,
+	0x15de: 0x000a, 0x15df: 0x000a, 0x15e0: 0x000a, 0x15e1: 0x000a, 0x15e2: 0x000a, 0x15e3: 0x000a,
+	0x15e4: 0x000a, 0x15e5: 0x000a, 0x15e6: 0x000a, 0x15e7: 0x000a, 0x15e8: 0x000a, 0x15e9: 0x000a,
+	0x15ea: 0x000a, 0x15eb: 0x000a, 0x15ec: 0x000a, 0x15ed: 0x000a, 0x15ee: 0x000a, 0x15ef: 0x000a,
+	0x15f0: 0x000a, 0x15f1: 0x000a, 0x15f2: 0x000a, 0x15f3: 0x000a, 0x15f4: 0x000a, 0x15f5: 0x000a,
+	0x15f6: 0x000a, 0x15f7: 0x000a, 0x15f8: 0x000a, 0x15f9: 0x000a, 0x15fa: 0x000a, 0x15fb: 0x000a,
+	0x15fc: 0x000a, 0x15fd: 0x000a, 0x15fe: 0x000a, 0x15ff: 0x000a,
+	// Block 0x58, offset 0x1600
+	0x1600: 0x000a, 0x1601: 0x000a, 0x1602: 0x000a, 0x1603: 0x000a, 0x1604: 0x000a, 0x1605: 0x000a,
+	0x1606: 0x000a, 0x1607: 0x000a, 0x1608: 0x003a, 0x1609: 0x002a, 0x160a: 0x003a, 0x160b: 0x002a,
+	0x160c: 0x000a, 0x160d: 0x000a, 0x160e: 0x000a, 0x160f: 0x000a, 0x1610: 0x000a, 0x1611: 0x000a,
+	0x1612: 0x000a, 0x1613: 0x000a, 0x1614: 0x000a, 0x1615: 0x000a, 0x1616: 0x000a, 0x1617: 0x000a,
+	0x1618: 0x000a, 0x1619: 0x000a, 0x161a: 0x000a, 0x161b: 0x000a, 0x161c: 0x000a, 0x161d: 0x000a,
+	0x161e: 0x000a, 0x161f: 0x000a, 0x1620: 0x000a, 0x1621: 0x000a, 0x1622: 0x000a, 0x1623: 0x000a,
+	0x1624: 0x000a, 0x1625: 0x000a, 0x1626: 0x000a, 0x1627: 0x000a, 0x1628: 0x000a, 0x1629: 0x009a,
+	0x162a: 0x008a, 0x162b: 0x000a, 0x162c: 0x000a, 0x162d: 0x000a, 0x162e: 0x000a, 0x162f: 0x000a,
+	0x1630: 0x000a, 0x1631: 0x000a, 0x1632: 0x000a, 0x1633: 0x000a, 0x1634: 0x000a, 0x1635: 0x000a,
+	// Block 0x59, offset 0x1640
+	0x167b: 0x000a,
+	0x167c: 0x000a, 0x167d: 0x000a, 0x167e: 0x000a, 0x167f: 0x000a,
+	// Block 0x5a, offset 0x1680
+	0x1680: 0x000a, 0x1681: 0x000a, 0x1682: 0x000a, 0x1683: 0x000a, 0x1684: 0x000a, 0x1685: 0x000a,
+	0x1686: 0x000a, 0x1687: 0x000a, 0x1688: 0x000a, 0x1689: 0x000a, 0x168a: 0x000a, 0x168b: 0x000a,
+	0x168c: 0x000a, 0x168d: 0x000a, 0x168e: 0x000a, 0x168f: 0x000a, 0x1690: 0x000a, 0x1691: 0x000a,
+	0x1692: 0x000a, 0x1693: 0x000a, 0x1694: 0x000a, 0x1696: 0x000a, 0x1697: 0x000a,
+	0x1698: 0x000a, 0x1699: 0x000a, 0x169a: 0x000a, 0x169b: 0x000a, 0x169c: 0x000a, 0x169d: 0x000a,
+	0x169e: 0x000a, 0x169f: 0x000a, 0x16a0: 0x000a, 0x16a1: 0x000a, 0x16a2: 0x000a, 0x16a3: 0x000a,
+	0x16a4: 0x000a, 0x16a5: 0x000a, 0x16a6: 0x000a, 0x16a7: 0x000a, 0x16a8: 0x000a, 0x16a9: 0x000a,
+	0x16aa: 0x000a, 0x16ab: 0x000a, 0x16ac: 0x000a, 0x16ad: 0x000a, 0x16ae: 0x000a, 0x16af: 0x000a,
+	0x16b0: 0x000a, 0x16b1: 0x000a, 0x16b2: 0x000a, 0x16b3: 0x000a, 0x16b4: 0x000a, 0x16b5: 0x000a,
+	0x16b6: 0x000a, 0x16b7: 0x000a, 0x16b8: 0x000a, 0x16b9: 0x000a, 0x16ba: 0x000a, 0x16bb: 0x000a,
+	0x16bc: 0x000a, 0x16bd: 0x000a, 0x16be: 0x000a, 0x16bf: 0x000a,
+	// Block 0x5b, offset 0x16c0
+	0x16c0: 0x000a, 0x16c1: 0x000a, 0x16c2: 0x000a, 0x16c3: 0x000a, 0x16c4: 0x000a, 0x16c5: 0x000a,
+	0x16c6: 0x000a, 0x16c7: 0x000a, 0x16c8: 0x000a, 0x16c9: 0x000a, 0x16ca: 0x000a, 0x16cb: 0x000a,
+	0x16cc: 0x000a, 0x16cd: 0x000a, 0x16ce: 0x000a, 0x16cf: 0x000a, 0x16d0: 0x000a, 0x16d1: 0x000a,
+	0x16d2: 0x000a, 0x16d3: 0x000a, 0x16d4: 0x000a, 0x16d5: 0x000a, 0x16d6: 0x000a, 0x16d7: 0x000a,
+	0x16d8: 0x000a, 0x16d9: 0x000a, 0x16da: 0x000a, 0x16db: 0x000a, 0x16dc: 0x000a, 0x16dd: 0x000a,
+	0x16de: 0x000a, 0x16df: 0x000a, 0x16e0: 0x000a, 0x16e1: 0x000a, 0x16e2: 0x000a, 0x16e3: 0x000a,
+	0x16e4: 0x000a, 0x16e5: 0x000a, 0x16e6: 0x000a,
+	// Block 0x5c, offset 0x1700
+	0x1700: 0x000a, 0x1701: 0x000a, 0x1702: 0x000a, 0x1703: 0x000a, 0x1704: 0x000a, 0x1705: 0x000a,
+	0x1706: 0x000a, 0x1707: 0x000a, 0x1708: 0x000a, 0x1709: 0x000a, 0x170a: 0x000a,
+	0x1720: 0x000a, 0x1721: 0x000a, 0x1722: 0x000a, 0x1723: 0x000a,
+	0x1724: 0x000a, 0x1725: 0x000a, 0x1726: 0x000a, 0x1727: 0x000a, 0x1728: 0x000a, 0x1729: 0x000a,
+	0x172a: 0x000a, 0x172b: 0x000a, 0x172c: 0x000a, 0x172d: 0x000a, 0x172e: 0x000a, 0x172f: 0x000a,
+	0x1730: 0x000a, 0x1731: 0x000a, 0x1732: 0x000a, 0x1733: 0x000a, 0x1734: 0x000a, 0x1735: 0x000a,
+	0x1736: 0x000a, 0x1737: 0x000a, 0x1738: 0x000a, 0x1739: 0x000a, 0x173a: 0x000a, 0x173b: 0x000a,
+	0x173c: 0x000a, 0x173d: 0x000a, 0x173e: 0x000a, 0x173f: 0x000a,
+	// Block 0x5d, offset 0x1740
+	0x1740: 0x000a, 0x1741: 0x000a, 0x1742: 0x000a, 0x1743: 0x000a, 0x1744: 0x000a, 0x1745: 0x000a,
+	0x1746: 0x000a, 0x1747: 0x000a, 0x1748: 0x0002, 0x1749: 0x0002, 0x174a: 0x0002, 0x174b: 0x0002,
+	0x174c: 0x0002, 0x174d: 0x0002, 0x174e: 0x0002, 0x174f: 0x0002, 0x1750: 0x0002, 0x1751: 0x0002,
+	0x1752: 0x0002, 0x1753: 0x0002, 0x1754: 0x0002, 0x1755: 0x0002, 0x1756: 0x0002, 0x1757: 0x0002,
+	0x1758: 0x0002, 0x1759: 0x0002, 0x175a: 0x0002, 0x175b: 0x0002,
+	// Block 0x5e, offset 0x1780
+	0x17aa: 0x000a, 0x17ab: 0x000a, 0x17ac: 0x000a, 0x17ad: 0x000a, 0x17ae: 0x000a, 0x17af: 0x000a,
+	0x17b0: 0x000a, 0x17b1: 0x000a, 0x17b2: 0x000a, 0x17b3: 0x000a, 0x17b4: 0x000a, 0x17b5: 0x000a,
+	0x17b6: 0x000a, 0x17b7: 0x000a, 0x17b8: 0x000a, 0x17b9: 0x000a, 0x17ba: 0x000a, 0x17bb: 0x000a,
+	0x17bc: 0x000a, 0x17bd: 0x000a, 0x17be: 0x000a, 0x17bf: 0x000a,
+	// Block 0x5f, offset 0x17c0
+	0x17c0: 0x000a, 0x17c1: 0x000a, 0x17c2: 0x000a, 0x17c3: 0x000a, 0x17c4: 0x000a, 0x17c5: 0x000a,
+	0x17c6: 0x000a, 0x17c7: 0x000a, 0x17c8: 0x000a, 0x17c9: 0x000a, 0x17ca: 0x000a, 0x17cb: 0x000a,
+	0x17cc: 0x000a, 0x17cd: 0x000a, 0x17ce: 0x000a, 0x17cf: 0x000a, 0x17d0: 0x000a, 0x17d1: 0x000a,
+	0x17d2: 0x000a, 0x17d3: 0x000a, 0x17d4: 0x000a, 0x17d5: 0x000a, 0x17d6: 0x000a, 0x17d7: 0x000a,
+	0x17d8: 0x000a, 0x17d9: 0x000a, 0x17da: 0x000a, 0x17db: 0x000a, 0x17dc: 0x000a, 0x17dd: 0x000a,
+	0x17de: 0x000a, 0x17df: 0x000a, 0x17e0: 0x000a, 0x17e1: 0x000a, 0x17e2: 0x000a, 0x17e3: 0x000a,
+	0x17e4: 0x000a, 0x17e5: 0x000a, 0x17e6: 0x000a, 0x17e7: 0x000a, 0x17e8: 0x000a, 0x17e9: 0x000a,
+	0x17ea: 0x000a, 0x17eb: 0x000a, 0x17ed: 0x000a, 0x17ee: 0x000a, 0x17ef: 0x000a,
+	0x17f0: 0x000a, 0x17f1: 0x000a, 0x17f2: 0x000a, 0x17f3: 0x000a, 0x17f4: 0x000a, 0x17f5: 0x000a,
+	0x17f6: 0x000a, 0x17f7: 0x000a, 0x17f8: 0x000a, 0x17f9: 0x000a, 0x17fa: 0x000a, 0x17fb: 0x000a,
+	0x17fc: 0x000a, 0x17fd: 0x000a, 0x17fe: 0x000a, 0x17ff: 0x000a,
+	// Block 0x60, offset 0x1800
+	0x1800: 0x000a, 0x1801: 0x000a, 0x1802: 0x000a, 0x1803: 0x000a, 0x1804: 0x000a, 0x1805: 0x000a,
+	0x1806: 0x000a, 0x1807: 0x000a, 0x1808: 0x000a, 0x1809: 0x000a, 0x180a: 0x000a, 0x180b: 0x000a,
+	0x180c: 0x000a, 0x180d: 0x000a, 0x180e: 0x000a, 0x180f: 0x000a, 0x1810: 0x000a, 0x1811: 0x000a,
+	0x1812: 0x000a, 0x1813: 0x000a, 0x1814: 0x000a, 0x1815: 0x000a, 0x1816: 0x000a, 0x1817: 0x000a,
+	0x1818: 0x000a, 0x1819: 0x000a, 0x181a: 0x000a, 0x181b: 0x000a, 0x181c: 0x000a, 0x181d: 0x000a,
+	0x181e: 0x000a, 0x181f: 0x000a, 0x1820: 0x000a, 0x1821: 0x000a, 0x1822: 0x000a, 0x1823: 0x000a,
+	0x1824: 0x000a, 0x1825: 0x000a, 0x1826: 0x000a, 0x1827: 0x000a, 0x1828: 0x003a, 0x1829: 0x002a,
+	0x182a: 0x003a, 0x182b: 0x002a, 0x182c: 0x003a, 0x182d: 0x002a, 0x182e: 0x003a, 0x182f: 0x002a,
+	0x1830: 0x003a, 0x1831: 0x002a, 0x1832: 0x003a, 0x1833: 0x002a, 0x1834: 0x003a, 0x1835: 0x002a,
+	0x1836: 0x000a, 0x1837: 0x000a, 0x1838: 0x000a, 0x1839: 0x000a, 0x183a: 0x000a, 0x183b: 0x000a,
+	0x183c: 0x000a, 0x183d: 0x000a, 0x183e: 0x000a, 0x183f: 0x000a,
+	// Block 0x61, offset 0x1840
+	0x1840: 0x000a, 0x1841: 0x000a, 0x1842: 0x000a, 0x1843: 0x000a, 0x1844: 0x000a, 0x1845: 0x009a,
+	0x1846: 0x008a, 0x1847: 0x000a, 0x1848: 0x000a, 0x1849: 0x000a, 0x184a: 0x000a, 0x184b: 0x000a,
+	0x184c: 0x000a, 0x184d: 0x000a, 0x184e: 0x000a, 0x184f: 0x000a, 0x1850: 0x000a, 0x1851: 0x000a,
+	0x1852: 0x000a, 0x1853: 0x000a, 0x1854: 0x000a, 0x1855: 0x000a, 0x1856: 0x000a, 0x1857: 0x000a,
+	0x1858: 0x000a, 0x1859: 0x000a, 0x185a: 0x000a, 0x185b: 0x000a, 0x185c: 0x000a, 0x185d: 0x000a,
+	0x185e: 0x000a, 0x185f: 0x000a, 0x1860: 0x000a, 0x1861: 0x000a, 0x1862: 0x000a, 0x1863: 0x000a,
+	0x1864: 0x000a, 0x1865: 0x000a, 0x1866: 0x003a, 0x1867: 0x002a, 0x1868: 0x003a, 0x1869: 0x002a,
+	0x186a: 0x003a, 0x186b: 0x002a, 0x186c: 0x003a, 0x186d: 0x002a, 0x186e: 0x003a, 0x186f: 0x002a,
+	0x1870: 0x000a, 0x1871: 0x000a, 0x1872: 0x000a, 0x1873: 0x000a, 0x1874: 0x000a, 0x1875: 0x000a,
+	0x1876: 0x000a, 0x1877: 0x000a, 0x1878: 0x000a, 0x1879: 0x000a, 0x187a: 0x000a, 0x187b: 0x000a,
+	0x187c: 0x000a, 0x187d: 0x000a, 0x187e: 0x000a, 0x187f: 0x000a,
+	// Block 0x62, offset 0x1880
+	0x1880: 0x000a, 0x1881: 0x000a, 0x1882: 0x000a, 0x1883: 0x007a, 0x1884: 0x006a, 0x1885: 0x009a,
+	0x1886: 0x008a, 0x1887: 0x00ba, 0x1888: 0x00aa, 0x1889: 0x009a, 0x188a: 0x008a, 0x188b: 0x007a,
+	0x188c: 0x006a, 0x188d: 0x00da, 0x188e: 0x002a, 0x188f: 0x003a, 0x1890: 0x00ca, 0x1891: 0x009a,
+	0x1892: 0x008a, 0x1893: 0x007a, 0x1894: 0x006a, 0x1895: 0x009a, 0x1896: 0x008a, 0x1897: 0x00ba,
+	0x1898: 0x00aa, 0x1899: 0x000a, 0x189a: 0x000a, 0x189b: 0x000a, 0x189c: 0x000a, 0x189d: 0x000a,
+	0x189e: 0x000a, 0x189f: 0x000a, 0x18a0: 0x000a, 0x18a1: 0x000a, 0x18a2: 0x000a, 0x18a3: 0x000a,
+	0x18a4: 0x000a, 0x18a5: 0x000a, 0x18a6: 0x000a, 0x18a7: 0x000a, 0x18a8: 0x000a, 0x18a9: 0x000a,
+	0x18aa: 0x000a, 0x18ab: 0x000a, 0x18ac: 0x000a, 0x18ad: 0x000a, 0x18ae: 0x000a, 0x18af: 0x000a,
+	0x18b0: 0x000a, 0x18b1: 0x000a, 0x18b2: 0x000a, 0x18b3: 0x000a, 0x18b4: 0x000a, 0x18b5: 0x000a,
+	0x18b6: 0x000a, 0x18b7: 0x000a, 0x18b8: 0x000a, 0x18b9: 0x000a, 0x18ba: 0x000a, 0x18bb: 0x000a,
+	0x18bc: 0x000a, 0x18bd: 0x000a, 0x18be: 0x000a, 0x18bf: 0x000a,
+	// Block 0x63, offset 0x18c0
+	0x18c0: 0x000a, 0x18c1: 0x000a, 0x18c2: 0x000a, 0x18c3: 0x000a, 0x18c4: 0x000a, 0x18c5: 0x000a,
+	0x18c6: 0x000a, 0x18c7: 0x000a, 0x18c8: 0x000a, 0x18c9: 0x000a, 0x18ca: 0x000a, 0x18cb: 0x000a,
+	0x18cc: 0x000a, 0x18cd: 0x000a, 0x18ce: 0x000a, 0x18cf: 0x000a, 0x18d0: 0x000a, 0x18d1: 0x000a,
+	0x18d2: 0x000a, 0x18d3: 0x000a, 0x18d4: 0x000a, 0x18d5: 0x000a, 0x18d6: 0x000a, 0x18d7: 0x000a,
+	0x18d8: 0x003a, 0x18d9: 0x002a, 0x18da: 0x003a, 0x18db: 0x002a, 0x18dc: 0x000a, 0x18dd: 0x000a,
+	0x18de: 0x000a, 0x18df: 0x000a, 0x18e0: 0x000a, 0x18e1: 0x000a, 0x18e2: 0x000a, 0x18e3: 0x000a,
+	0x18e4: 0x000a, 0x18e5: 0x000a, 0x18e6: 0x000a, 0x18e7: 0x000a, 0x18e8: 0x000a, 0x18e9: 0x000a,
+	0x18ea: 0x000a, 0x18eb: 0x000a, 0x18ec: 0x000a, 0x18ed: 0x000a, 0x18ee: 0x000a, 0x18ef: 0x000a,
+	0x18f0: 0x000a, 0x18f1: 0x000a, 0x18f2: 0x000a, 0x18f3: 0x000a, 0x18f4: 0x000a, 0x18f5: 0x000a,
+	0x18f6: 0x000a, 0x18f7: 0x000a, 0x18f8: 0x000a, 0x18f9: 0x000a, 0x18fa: 0x000a, 0x18fb: 0x000a,
+	0x18fc: 0x003a, 0x18fd: 0x002a, 0x18fe: 0x000a, 0x18ff: 0x000a,
+	// Block 0x64, offset 0x1900
+	0x1900: 0x000a, 0x1901: 0x000a, 0x1902: 0x000a, 0x1903: 0x000a, 0x1904: 0x000a, 0x1905: 0x000a,
+	0x1906: 0x000a, 0x1907: 0x000a, 0x1908: 0x000a, 0x1909: 0x000a, 0x190a: 0x000a, 0x190b: 0x000a,
+	0x190c: 0x000a, 0x190d: 0x000a, 0x190e: 0x000a, 0x190f: 0x000a, 0x1910: 0x000a, 0x1911: 0x000a,
+	0x1912: 0x000a, 0x1913: 0x000a, 0x1914: 0x000a, 0x1915: 0x000a, 0x1916: 0x000a, 0x1917: 0x000a,
+	0x1918: 0x000a, 0x1919: 0x000a, 0x191a: 0x000a, 0x191b: 0x000a, 0x191c: 0x000a, 0x191d: 0x000a,
+	0x191e: 0x000a, 0x191f: 0x000a, 0x1920: 0x000a, 0x1921: 0x000a, 0x1922: 0x000a, 0x1923: 0x000a,
+	0x1924: 0x000a, 0x1925: 0x000a, 0x1926: 0x000a, 0x1927: 0x000a, 0x1928: 0x000a, 0x1929: 0x000a,
+	0x192a: 0x000a, 0x192b: 0x000a, 0x192c: 0x000a, 0x192d: 0x000a, 0x192e: 0x000a, 0x192f: 0x000a,
+	0x1930: 0x000a, 0x1931: 0x000a, 0x1932: 0x000a, 0x1933: 0x000a,
+	0x1936: 0x000a, 0x1937: 0x000a, 0x1938: 0x000a, 0x1939: 0x000a, 0x193a: 0x000a, 0x193b: 0x000a,
+	0x193c: 0x000a, 0x193d: 0x000a, 0x193e: 0x000a, 0x193f: 0x000a,
+	// Block 0x65, offset 0x1940
+	0x1940: 0x000a, 0x1941: 0x000a, 0x1942: 0x000a, 0x1943: 0x000a, 0x1944: 0x000a, 0x1945: 0x000a,
+	0x1946: 0x000a, 0x1947: 0x000a, 0x1948: 0x000a, 0x1949: 0x000a, 0x194a: 0x000a, 0x194b: 0x000a,
+	0x194c: 0x000a, 0x194d: 0x000a, 0x194e: 0x000a, 0x194f: 0x000a, 0x1950: 0x000a, 0x1951: 0x000a,
+	0x1952: 0x000a, 0x1953: 0x000a, 0x1954: 0x000a, 0x1955: 0x000a,
+	0x1958: 0x000a, 0x1959: 0x000a, 0x195a: 0x000a, 0x195b: 0x000a, 0x195c: 0x000a, 0x195d: 0x000a,
+	0x195e: 0x000a, 0x195f: 0x000a, 0x1960: 0x000a, 0x1961: 0x000a, 0x1962: 0x000a, 0x1963: 0x000a,
+	0x1964: 0x000a, 0x1965: 0x000a, 0x1966: 0x000a, 0x1967: 0x000a, 0x1968: 0x000a, 0x1969: 0x000a,
+	0x196a: 0x000a, 0x196b: 0x000a, 0x196c: 0x000a, 0x196d: 0x000a, 0x196e: 0x000a, 0x196f: 0x000a,
+	0x1970: 0x000a, 0x1971: 0x000a, 0x1972: 0x000a, 0x1973: 0x000a, 0x1974: 0x000a, 0x1975: 0x000a,
+	0x1976: 0x000a, 0x1977: 0x000a, 0x1978: 0x000a, 0x1979: 0x000a, 0x197a: 0x000a, 0x197b: 0x000a,
+	0x197c: 0x000a, 0x197d: 0x000a, 0x197e: 0x000a, 0x197f: 0x000a,
+	// Block 0x66, offset 0x1980
+	0x19a5: 0x000a, 0x19a6: 0x000a, 0x19a7: 0x000a, 0x19a8: 0x000a, 0x19a9: 0x000a,
+	0x19aa: 0x000a, 0x19af: 0x000c,
+	0x19b0: 0x000c, 0x19b1: 0x000c,
+	0x19b9: 0x000a, 0x19ba: 0x000a, 0x19bb: 0x000a,
+	0x19bc: 0x000a, 0x19bd: 0x000a, 0x19be: 0x000a, 0x19bf: 0x000a,
+	// Block 0x67, offset 0x19c0
+	0x19ff: 0x000c,
+	// Block 0x68, offset 0x1a00
+	0x1a20: 0x000c, 0x1a21: 0x000c, 0x1a22: 0x000c, 0x1a23: 0x000c,
+	0x1a24: 0x000c, 0x1a25: 0x000c, 0x1a26: 0x000c, 0x1a27: 0x000c, 0x1a28: 0x000c, 0x1a29: 0x000c,
+	0x1a2a: 0x000c, 0x1a2b: 0x000c, 0x1a2c: 0x000c, 0x1a2d: 0x000c, 0x1a2e: 0x000c, 0x1a2f: 0x000c,
+	0x1a30: 0x000c, 0x1a31: 0x000c, 0x1a32: 0x000c, 0x1a33: 0x000c, 0x1a34: 0x000c, 0x1a35: 0x000c,
+	0x1a36: 0x000c, 0x1a37: 0x000c, 0x1a38: 0x000c, 0x1a39: 0x000c, 0x1a3a: 0x000c, 0x1a3b: 0x000c,
+	0x1a3c: 0x000c, 0x1a3d: 0x000c, 0x1a3e: 0x000c, 0x1a3f: 0x000c,
+	// Block 0x69, offset 0x1a40
+	0x1a40: 0x000a, 0x1a41: 0x000a, 0x1a42: 0x000a, 0x1a43: 0x000a, 0x1a44: 0x000a, 0x1a45: 0x000a,
+	0x1a46: 0x000a, 0x1a47: 0x000a, 0x1a48: 0x000a, 0x1a49: 0x000a, 0x1a4a: 0x000a, 0x1a4b: 0x000a,
+	0x1a4c: 0x000a, 0x1a4d: 0x000a, 0x1a4e: 0x000a, 0x1a4f: 0x000a, 0x1a50: 0x000a, 0x1a51: 0x000a,
+	0x1a52: 0x000a, 0x1a53: 0x000a, 0x1a54: 0x000a, 0x1a55: 0x000a, 0x1a56: 0x000a, 0x1a57: 0x000a,
+	0x1a58: 0x000a, 0x1a59: 0x000a, 0x1a5a: 0x000a, 0x1a5b: 0x000a, 0x1a5c: 0x000a, 0x1a5d: 0x000a,
+	0x1a5e: 0x000a, 0x1a5f: 0x000a, 0x1a60: 0x000a, 0x1a61: 0x000a, 0x1a62: 0x003a, 0x1a63: 0x002a,
+	0x1a64: 0x003a, 0x1a65: 0x002a, 0x1a66: 0x003a, 0x1a67: 0x002a, 0x1a68: 0x003a, 0x1a69: 0x002a,
+	0x1a6a: 0x000a, 0x1a6b: 0x000a, 0x1a6c: 0x000a, 0x1a6d: 0x000a, 0x1a6e: 0x000a, 0x1a6f: 0x000a,
+	0x1a70: 0x000a, 0x1a71: 0x000a, 0x1a72: 0x000a, 0x1a73: 0x000a, 0x1a74: 0x000a, 0x1a75: 0x000a,
+	0x1a76: 0x000a, 0x1a77: 0x000a, 0x1a78: 0x000a, 0x1a79: 0x000a, 0x1a7a: 0x000a, 0x1a7b: 0x000a,
+	0x1a7c: 0x000a, 0x1a7d: 0x000a, 0x1a7e: 0x000a, 0x1a7f: 0x000a,
+	// Block 0x6a, offset 0x1a80
+	0x1a80: 0x000a, 0x1a81: 0x000a, 0x1a82: 0x000a, 0x1a83: 0x000a, 0x1a84: 0x000a, 0x1a85: 0x000a,
+	0x1a86: 0x000a, 0x1a87: 0x000a, 0x1a88: 0x000a, 0x1a89: 0x000a, 0x1a8a: 0x000a, 0x1a8b: 0x000a,
+	0x1a8c: 0x000a, 0x1a8d: 0x000a, 0x1a8e: 0x000a, 0x1a8f: 0x000a,
+	// Block 0x6b, offset 0x1ac0
+	0x1ac0: 0x000a, 0x1ac1: 0x000a, 0x1ac2: 0x000a, 0x1ac3: 0x000a, 0x1ac4: 0x000a, 0x1ac5: 0x000a,
+	0x1ac6: 0x000a, 0x1ac7: 0x000a, 0x1ac8: 0x000a, 0x1ac9: 0x000a, 0x1aca: 0x000a, 0x1acb: 0x000a,
+	0x1acc: 0x000a, 0x1acd: 0x000a, 0x1ace: 0x000a, 0x1acf: 0x000a, 0x1ad0: 0x000a, 0x1ad1: 0x000a,
+	0x1ad2: 0x000a, 0x1ad3: 0x000a, 0x1ad4: 0x000a, 0x1ad5: 0x000a, 0x1ad6: 0x000a, 0x1ad7: 0x000a,
+	0x1ad8: 0x000a, 0x1ad9: 0x000a, 0x1adb: 0x000a, 0x1adc: 0x000a, 0x1add: 0x000a,
+	0x1ade: 0x000a, 0x1adf: 0x000a, 0x1ae0: 0x000a, 0x1ae1: 0x000a, 0x1ae2: 0x000a, 0x1ae3: 0x000a,
+	0x1ae4: 0x000a, 0x1ae5: 0x000a, 0x1ae6: 0x000a, 0x1ae7: 0x000a, 0x1ae8: 0x000a, 0x1ae9: 0x000a,
+	0x1aea: 0x000a, 0x1aeb: 0x000a, 0x1aec: 0x000a, 0x1aed: 0x000a, 0x1aee: 0x000a, 0x1aef: 0x000a,
+	0x1af0: 0x000a, 0x1af1: 0x000a, 0x1af2: 0x000a, 0x1af3: 0x000a, 0x1af4: 0x000a, 0x1af5: 0x000a,
+	0x1af6: 0x000a, 0x1af7: 0x000a, 0x1af8: 0x000a, 0x1af9: 0x000a, 0x1afa: 0x000a, 0x1afb: 0x000a,
+	0x1afc: 0x000a, 0x1afd: 0x000a, 0x1afe: 0x000a, 0x1aff: 0x000a,
+	// Block 0x6c, offset 0x1b00
+	0x1b00: 0x000a, 0x1b01: 0x000a, 0x1b02: 0x000a, 0x1b03: 0x000a, 0x1b04: 0x000a, 0x1b05: 0x000a,
+	0x1b06: 0x000a, 0x1b07: 0x000a, 0x1b08: 0x000a, 0x1b09: 0x000a, 0x1b0a: 0x000a, 0x1b0b: 0x000a,
+	0x1b0c: 0x000a, 0x1b0d: 0x000a, 0x1b0e: 0x000a, 0x1b0f: 0x000a, 0x1b10: 0x000a, 0x1b11: 0x000a,
+	0x1b12: 0x000a, 0x1b13: 0x000a, 0x1b14: 0x000a, 0x1b15: 0x000a, 0x1b16: 0x000a, 0x1b17: 0x000a,
+	0x1b18: 0x000a, 0x1b19: 0x000a, 0x1b1a: 0x000a, 0x1b1b: 0x000a, 0x1b1c: 0x000a, 0x1b1d: 0x000a,
+	0x1b1e: 0x000a, 0x1b1f: 0x000a, 0x1b20: 0x000a, 0x1b21: 0x000a, 0x1b22: 0x000a, 0x1b23: 0x000a,
+	0x1b24: 0x000a, 0x1b25: 0x000a, 0x1b26: 0x000a, 0x1b27: 0x000a, 0x1b28: 0x000a, 0x1b29: 0x000a,
+	0x1b2a: 0x000a, 0x1b2b: 0x000a, 0x1b2c: 0x000a, 0x1b2d: 0x000a, 0x1b2e: 0x000a, 0x1b2f: 0x000a,
+	0x1b30: 0x000a, 0x1b31: 0x000a, 0x1b32: 0x000a, 0x1b33: 0x000a,
+	// Block 0x6d, offset 0x1b40
+	0x1b40: 0x000a, 0x1b41: 0x000a, 0x1b42: 0x000a, 0x1b43: 0x000a, 0x1b44: 0x000a, 0x1b45: 0x000a,
+	0x1b46: 0x000a, 0x1b47: 0x000a, 0x1b48: 0x000a, 0x1b49: 0x000a, 0x1b4a: 0x000a, 0x1b4b: 0x000a,
+	0x1b4c: 0x000a, 0x1b4d: 0x000a, 0x1b4e: 0x000a, 0x1b4f: 0x000a, 0x1b50: 0x000a, 0x1b51: 0x000a,
+	0x1b52: 0x000a, 0x1b53: 0x000a, 0x1b54: 0x000a, 0x1b55: 0x000a,
+	0x1b70: 0x000a, 0x1b71: 0x000a, 0x1b72: 0x000a, 0x1b73: 0x000a, 0x1b74: 0x000a, 0x1b75: 0x000a,
+	0x1b76: 0x000a, 0x1b77: 0x000a, 0x1b78: 0x000a, 0x1b79: 0x000a, 0x1b7a: 0x000a, 0x1b7b: 0x000a,
+	// Block 0x6e, offset 0x1b80
+	0x1b80: 0x0009, 0x1b81: 0x000a, 0x1b82: 0x000a, 0x1b83: 0x000a, 0x1b84: 0x000a,
+	0x1b88: 0x003a, 0x1b89: 0x002a, 0x1b8a: 0x003a, 0x1b8b: 0x002a,
+	0x1b8c: 0x003a, 0x1b8d: 0x002a, 0x1b8e: 0x003a, 0x1b8f: 0x002a, 0x1b90: 0x003a, 0x1b91: 0x002a,
+	0x1b92: 0x000a, 0x1b93: 0x000a, 0x1b94: 0x003a, 0x1b95: 0x002a, 0x1b96: 0x003a, 0x1b97: 0x002a,
+	0x1b98: 0x003a, 0x1b99: 0x002a, 0x1b9a: 0x003a, 0x1b9b: 0x002a, 0x1b9c: 0x000a, 0x1b9d: 0x000a,
+	0x1b9e: 0x000a, 0x1b9f: 0x000a, 0x1ba0: 0x000a,
+	0x1baa: 0x000c, 0x1bab: 0x000c, 0x1bac: 0x000c, 0x1bad: 0x000c,
+	0x1bb0: 0x000a,
+	0x1bb6: 0x000a, 0x1bb7: 0x000a,
+	0x1bbd: 0x000a, 0x1bbe: 0x000a, 0x1bbf: 0x000a,
+	// Block 0x6f, offset 0x1bc0
+	0x1bd9: 0x000c, 0x1bda: 0x000c, 0x1bdb: 0x000a, 0x1bdc: 0x000a,
+	0x1be0: 0x000a,
+	// Block 0x70, offset 0x1c00
+	0x1c3b: 0x000a,
+	// Block 0x71, offset 0x1c40
+	0x1c40: 0x000a, 0x1c41: 0x000a, 0x1c42: 0x000a, 0x1c43: 0x000a, 0x1c44: 0x000a, 0x1c45: 0x000a,
+	0x1c46: 0x000a, 0x1c47: 0x000a, 0x1c48: 0x000a, 0x1c49: 0x000a, 0x1c4a: 0x000a, 0x1c4b: 0x000a,
+	0x1c4c: 0x000a, 0x1c4d: 0x000a, 0x1c4e: 0x000a, 0x1c4f: 0x000a, 0x1c50: 0x000a, 0x1c51: 0x000a,
+	0x1c52: 0x000a, 0x1c53: 0x000a, 0x1c54: 0x000a, 0x1c55: 0x000a, 0x1c56: 0x000a, 0x1c57: 0x000a,
+	0x1c58: 0x000a, 0x1c59: 0x000a, 0x1c5a: 0x000a, 0x1c5b: 0x000a, 0x1c5c: 0x000a, 0x1c5d: 0x000a,
+	0x1c5e: 0x000a, 0x1c5f: 0x000a, 0x1c60: 0x000a, 0x1c61: 0x000a, 0x1c62: 0x000a, 0x1c63: 0x000a,
+	// Block 0x72, offset 0x1c80
+	0x1c9d: 0x000a,
+	0x1c9e: 0x000a,
+	// Block 0x73, offset 0x1cc0
+	0x1cd0: 0x000a, 0x1cd1: 0x000a,
+	0x1cd2: 0x000a, 0x1cd3: 0x000a, 0x1cd4: 0x000a, 0x1cd5: 0x000a, 0x1cd6: 0x000a, 0x1cd7: 0x000a,
+	0x1cd8: 0x000a, 0x1cd9: 0x000a, 0x1cda: 0x000a, 0x1cdb: 0x000a, 0x1cdc: 0x000a, 0x1cdd: 0x000a,
+	0x1cde: 0x000a, 0x1cdf: 0x000a,
+	0x1cfc: 0x000a, 0x1cfd: 0x000a, 0x1cfe: 0x000a,
+	// Block 0x74, offset 0x1d00
+	0x1d31: 0x000a, 0x1d32: 0x000a, 0x1d33: 0x000a, 0x1d34: 0x000a, 0x1d35: 0x000a,
+	0x1d36: 0x000a, 0x1d37: 0x000a, 0x1d38: 0x000a, 0x1d39: 0x000a, 0x1d3a: 0x000a, 0x1d3b: 0x000a,
+	0x1d3c: 0x000a, 0x1d3d: 0x000a, 0x1d3e: 0x000a, 0x1d3f: 0x000a,
+	// Block 0x75, offset 0x1d40
+	0x1d4c: 0x000a, 0x1d4d: 0x000a, 0x1d4e: 0x000a, 0x1d4f: 0x000a,
+	// Block 0x76, offset 0x1d80
+	0x1db7: 0x000a, 0x1db8: 0x000a, 0x1db9: 0x000a, 0x1dba: 0x000a,
+	// Block 0x77, offset 0x1dc0
+	0x1dde: 0x000a, 0x1ddf: 0x000a,
+	0x1dff: 0x000a,
+	// Block 0x78, offset 0x1e00
+	0x1e10: 0x000a, 0x1e11: 0x000a,
+	0x1e12: 0x000a, 0x1e13: 0x000a, 0x1e14: 0x000a, 0x1e15: 0x000a, 0x1e16: 0x000a, 0x1e17: 0x000a,
+	0x1e18: 0x000a, 0x1e19: 0x000a, 0x1e1a: 0x000a, 0x1e1b: 0x000a, 0x1e1c: 0x000a, 0x1e1d: 0x000a,
+	0x1e1e: 0x000a, 0x1e1f: 0x000a, 0x1e20: 0x000a, 0x1e21: 0x000a, 0x1e22: 0x000a, 0x1e23: 0x000a,
+	0x1e24: 0x000a, 0x1e25: 0x000a, 0x1e26: 0x000a, 0x1e27: 0x000a, 0x1e28: 0x000a, 0x1e29: 0x000a,
+	0x1e2a: 0x000a, 0x1e2b: 0x000a, 0x1e2c: 0x000a, 0x1e2d: 0x000a, 0x1e2e: 0x000a, 0x1e2f: 0x000a,
+	0x1e30: 0x000a, 0x1e31: 0x000a, 0x1e32: 0x000a, 0x1e33: 0x000a, 0x1e34: 0x000a, 0x1e35: 0x000a,
+	0x1e36: 0x000a, 0x1e37: 0x000a, 0x1e38: 0x000a, 0x1e39: 0x000a, 0x1e3a: 0x000a, 0x1e3b: 0x000a,
+	0x1e3c: 0x000a, 0x1e3d: 0x000a, 0x1e3e: 0x000a, 0x1e3f: 0x000a,
+	// Block 0x79, offset 0x1e40
+	0x1e40: 0x000a, 0x1e41: 0x000a, 0x1e42: 0x000a, 0x1e43: 0x000a, 0x1e44: 0x000a, 0x1e45: 0x000a,
+	0x1e46: 0x000a,
+	// Block 0x7a, offset 0x1e80
+	0x1e8d: 0x000a, 0x1e8e: 0x000a, 0x1e8f: 0x000a,
+	// Block 0x7b, offset 0x1ec0
+	0x1eef: 0x000c,
+	0x1ef0: 0x000c, 0x1ef1: 0x000c, 0x1ef2: 0x000c, 0x1ef3: 0x000a, 0x1ef4: 0x000c, 0x1ef5: 0x000c,
+	0x1ef6: 0x000c, 0x1ef7: 0x000c, 0x1ef8: 0x000c, 0x1ef9: 0x000c, 0x1efa: 0x000c, 0x1efb: 0x000c,
+	0x1efc: 0x000c, 0x1efd: 0x000c, 0x1efe: 0x000a, 0x1eff: 0x000a,
+	// Block 0x7c, offset 0x1f00
+	0x1f1e: 0x000c, 0x1f1f: 0x000c,
+	// Block 0x7d, offset 0x1f40
+	0x1f70: 0x000c, 0x1f71: 0x000c,
+	// Block 0x7e, offset 0x1f80
+	0x1f80: 0x000a, 0x1f81: 0x000a, 0x1f82: 0x000a, 0x1f83: 0x000a, 0x1f84: 0x000a, 0x1f85: 0x000a,
+	0x1f86: 0x000a, 0x1f87: 0x000a, 0x1f88: 0x000a, 0x1f89: 0x000a, 0x1f8a: 0x000a, 0x1f8b: 0x000a,
+	0x1f8c: 0x000a, 0x1f8d: 0x000a, 0x1f8e: 0x000a, 0x1f8f: 0x000a, 0x1f90: 0x000a, 0x1f91: 0x000a,
+	0x1f92: 0x000a, 0x1f93: 0x000a, 0x1f94: 0x000a, 0x1f95: 0x000a, 0x1f96: 0x000a, 0x1f97: 0x000a,
+	0x1f98: 0x000a, 0x1f99: 0x000a, 0x1f9a: 0x000a, 0x1f9b: 0x000a, 0x1f9c: 0x000a, 0x1f9d: 0x000a,
+	0x1f9e: 0x000a, 0x1f9f: 0x000a, 0x1fa0: 0x000a, 0x1fa1: 0x000a,
+	// Block 0x7f, offset 0x1fc0
+	0x1fc8: 0x000a,
+	// Block 0x80, offset 0x2000
+	0x2002: 0x000c,
+	0x2006: 0x000c, 0x200b: 0x000c,
+	0x2025: 0x000c, 0x2026: 0x000c, 0x2028: 0x000a, 0x2029: 0x000a,
+	0x202a: 0x000a, 0x202b: 0x000a,
+	0x2038: 0x0004, 0x2039: 0x0004,
+	// Block 0x81, offset 0x2040
+	0x2074: 0x000a, 0x2075: 0x000a,
+	0x2076: 0x000a, 0x2077: 0x000a,
+	// Block 0x82, offset 0x2080
+	0x2084: 0x000c, 0x2085: 0x000c,
+	0x20a0: 0x000c, 0x20a1: 0x000c, 0x20a2: 0x000c, 0x20a3: 0x000c,
+	0x20a4: 0x000c, 0x20a5: 0x000c, 0x20a6: 0x000c, 0x20a7: 0x000c, 0x20a8: 0x000c, 0x20a9: 0x000c,
+	0x20aa: 0x000c, 0x20ab: 0x000c, 0x20ac: 0x000c, 0x20ad: 0x000c, 0x20ae: 0x000c, 0x20af: 0x000c,
+	0x20b0: 0x000c, 0x20b1: 0x000c,
+	0x20bf: 0x000c,
+	// Block 0x83, offset 0x20c0
+	0x20e6: 0x000c, 0x20e7: 0x000c, 0x20e8: 0x000c, 0x20e9: 0x000c,
+	0x20ea: 0x000c, 0x20eb: 0x000c, 0x20ec: 0x000c, 0x20ed: 0x000c,
+	// Block 0x84, offset 0x2100
+	0x2107: 0x000c, 0x2108: 0x000c, 0x2109: 0x000c, 0x210a: 0x000c, 0x210b: 0x000c,
+	0x210c: 0x000c, 0x210d: 0x000c, 0x210e: 0x000c, 0x210f: 0x000c, 0x2110: 0x000c, 0x2111: 0x000c,
+	// Block 0x85, offset 0x2140
+	0x2140: 0x000c, 0x2141: 0x000c, 0x2142: 0x000c,
+	0x2173: 0x000c,
+	0x2176: 0x000c, 0x2177: 0x000c, 0x2178: 0x000c, 0x2179: 0x000c,
+	0x217c: 0x000c, 0x217d: 0x000c,
+	// Block 0x86, offset 0x2180
+	0x21a5: 0x000c,
+	// Block 0x87, offset 0x21c0
+	0x21e9: 0x000c,
+	0x21ea: 0x000c, 0x21eb: 0x000c, 0x21ec: 0x000c, 0x21ed: 0x000c, 0x21ee: 0x000c,
+	0x21f1: 0x000c, 0x21f2: 0x000c, 0x21f5: 0x000c,
+	0x21f6: 0x000c,
+	// Block 0x88, offset 0x2200
+	0x2203: 0x000c,
+	0x220c: 0x000c,
+	0x223c: 0x000c,
+	// Block 0x89, offset 0x2240
+	0x2270: 0x000c, 0x2272: 0x000c, 0x2273: 0x000c, 0x2274: 0x000c,
+	0x2277: 0x000c, 0x2278: 0x000c,
+	0x227e: 0x000c, 0x227f: 0x000c,
+	// Block 0x8a, offset 0x2280
+	0x2281: 0x000c,
+	0x22ac: 0x000c, 0x22ad: 0x000c,
+	0x22b6: 0x000c,
+	// Block 0x8b, offset 0x22c0
+	0x22e5: 0x000c, 0x22e8: 0x000c,
+	0x22ed: 0x000c,
+	// Block 0x8c, offset 0x2300
+	0x231d: 0x0001,
+	0x231e: 0x000c, 0x231f: 0x0001, 0x2320: 0x0001, 0x2321: 0x0001, 0x2322: 0x0001, 0x2323: 0x0001,
+	0x2324: 0x0001, 0x2325: 0x0001, 0x2326: 0x0001, 0x2327: 0x0001, 0x2328: 0x0001, 0x2329: 0x0003,
+	0x232a: 0x0001, 0x232b: 0x0001, 0x232c: 0x0001, 0x232d: 0x0001, 0x232e: 0x0001, 0x232f: 0x0001,
+	0x2330: 0x0001, 0x2331: 0x0001, 0x2332: 0x0001, 0x2333: 0x0001, 0x2334: 0x0001, 0x2335: 0x0001,
+	0x2336: 0x0001, 0x2337: 0x0001, 0x2338: 0x0001, 0x2339: 0x0001, 0x233a: 0x0001, 0x233b: 0x0001,
+	0x233c: 0x0001, 0x233d: 0x0001, 0x233e: 0x0001, 0x233f: 0x0001,
+	// Block 0x8d, offset 0x2340
+	0x2340: 0x0001, 0x2341: 0x0001, 0x2342: 0x0001, 0x2343: 0x0001, 0x2344: 0x0001, 0x2345: 0x0001,
+	0x2346: 0x0001, 0x2347: 0x0001, 0x2348: 0x0001, 0x2349: 0x0001, 0x234a: 0x0001, 0x234b: 0x0001,
+	0x234c: 0x0001, 0x234d: 0x0001, 0x234e: 0x0001, 0x234f: 0x0001, 0x2350: 0x000d, 0x2351: 0x000d,
+	0x2352: 0x000d, 0x2353: 0x000d, 0x2354: 0x000d, 0x2355: 0x000d, 0x2356: 0x000d, 0x2357: 0x000d,
+	0x2358: 0x000d, 0x2359: 0x000d, 0x235a: 0x000d, 0x235b: 0x000d, 0x235c: 0x000d, 0x235d: 0x000d,
+	0x235e: 0x000d, 0x235f: 0x000d, 0x2360: 0x000d, 0x2361: 0x000d, 0x2362: 0x000d, 0x2363: 0x000d,
+	0x2364: 0x000d, 0x2365: 0x000d, 0x2366: 0x000d, 0x2367: 0x000d, 0x2368: 0x000d, 0x2369: 0x000d,
+	0x236a: 0x000d, 0x236b: 0x000d, 0x236c: 0x000d, 0x236d: 0x000d, 0x236e: 0x000d, 0x236f: 0x000d,
+	0x2370: 0x000d, 0x2371: 0x000d, 0x2372: 0x000d, 0x2373: 0x000d, 0x2374: 0x000d, 0x2375: 0x000d,
+	0x2376: 0x000d, 0x2377: 0x000d, 0x2378: 0x000d, 0x2379: 0x000d, 0x237a: 0x000d, 0x237b: 0x000d,
+	0x237c: 0x000d, 0x237d: 0x000d, 0x237e: 0x000d, 0x237f: 0x000d,
+	// Block 0x8e, offset 0x2380
+	0x2380: 0x000d, 0x2381: 0x000d, 0x2382: 0x000d, 0x2383: 0x000d, 0x2384: 0x000d, 0x2385: 0x000d,
+	0x2386: 0x000d, 0x2387: 0x000d, 0x2388: 0x000d, 0x2389: 0x000d, 0x238a: 0x000d, 0x238b: 0x000d,
+	0x238c: 0x000d, 0x238d: 0x000d, 0x238e: 0x000d, 0x238f: 0x000d, 0x2390: 0x000d, 0x2391: 0x000d,
+	0x2392: 0x000d, 0x2393: 0x000d, 0x2394: 0x000d, 0x2395: 0x000d, 0x2396: 0x000d, 0x2397: 0x000d,
+	0x2398: 0x000d, 0x2399: 0x000d, 0x239a: 0x000d, 0x239b: 0x000d, 0x239c: 0x000d, 0x239d: 0x000d,
+	0x239e: 0x000d, 0x239f: 0x000d, 0x23a0: 0x000d, 0x23a1: 0x000d, 0x23a2: 0x000d, 0x23a3: 0x000d,
+	0x23a4: 0x000d, 0x23a5: 0x000d, 0x23a6: 0x000d, 0x23a7: 0x000d, 0x23a8: 0x000d, 0x23a9: 0x000d,
+	0x23aa: 0x000d, 0x23ab: 0x000d, 0x23ac: 0x000d, 0x23ad: 0x000d, 0x23ae: 0x000d, 0x23af: 0x000d,
+	0x23b0: 0x000d, 0x23b1: 0x000d, 0x23b2: 0x000d, 0x23b3: 0x000d, 0x23b4: 0x000d, 0x23b5: 0x000d,
+	0x23b6: 0x000d, 0x23b7: 0x000d, 0x23b8: 0x000d, 0x23b9: 0x000d, 0x23ba: 0x000d, 0x23bb: 0x000d,
+	0x23bc: 0x000d, 0x23bd: 0x000d, 0x23be: 0x000a, 0x23bf: 0x000a,
+	// Block 0x8f, offset 0x23c0
+	0x23c0: 0x000d, 0x23c1: 0x000d, 0x23c2: 0x000d, 0x23c3: 0x000d, 0x23c4: 0x000d, 0x23c5: 0x000d,
+	0x23c6: 0x000d, 0x23c7: 0x000d, 0x23c8: 0x000d, 0x23c9: 0x000d, 0x23ca: 0x000d, 0x23cb: 0x000d,
+	0x23cc: 0x000d, 0x23cd: 0x000d, 0x23ce: 0x000d, 0x23cf: 0x000d, 0x23d0: 0x000b, 0x23d1: 0x000b,
+	0x23d2: 0x000b, 0x23d3: 0x000b, 0x23d4: 0x000b, 0x23d5: 0x000b, 0x23d6: 0x000b, 0x23d7: 0x000b,
+	0x23d8: 0x000b, 0x23d9: 0x000b, 0x23da: 0x000b, 0x23db: 0x000b, 0x23dc: 0x000b, 0x23dd: 0x000b,
+	0x23de: 0x000b, 0x23df: 0x000b, 0x23e0: 0x000b, 0x23e1: 0x000b, 0x23e2: 0x000b, 0x23e3: 0x000b,
+	0x23e4: 0x000b, 0x23e5: 0x000b, 0x23e6: 0x000b, 0x23e7: 0x000b, 0x23e8: 0x000b, 0x23e9: 0x000b,
+	0x23ea: 0x000b, 0x23eb: 0x000b, 0x23ec: 0x000b, 0x23ed: 0x000b, 0x23ee: 0x000b, 0x23ef: 0x000b,
+	0x23f0: 0x000d, 0x23f1: 0x000d, 0x23f2: 0x000d, 0x23f3: 0x000d, 0x23f4: 0x000d, 0x23f5: 0x000d,
+	0x23f6: 0x000d, 0x23f7: 0x000d, 0x23f8: 0x000d, 0x23f9: 0x000d, 0x23fa: 0x000d, 0x23fb: 0x000d,
+	0x23fc: 0x000d, 0x23fd: 0x000a, 0x23fe: 0x000d, 0x23ff: 0x000d,
+	// Block 0x90, offset 0x2400
+	0x2400: 0x000c, 0x2401: 0x000c, 0x2402: 0x000c, 0x2403: 0x000c, 0x2404: 0x000c, 0x2405: 0x000c,
+	0x2406: 0x000c, 0x2407: 0x000c, 0x2408: 0x000c, 0x2409: 0x000c, 0x240a: 0x000c, 0x240b: 0x000c,
+	0x240c: 0x000c, 0x240d: 0x000c, 0x240e: 0x000c, 0x240f: 0x000c, 0x2410: 0x000a, 0x2411: 0x000a,
+	0x2412: 0x000a, 0x2413: 0x000a, 0x2414: 0x000a, 0x2415: 0x000a, 0x2416: 0x000a, 0x2417: 0x000a,
+	0x2418: 0x000a, 0x2419: 0x000a,
+	0x2420: 0x000c, 0x2421: 0x000c, 0x2422: 0x000c, 0x2423: 0x000c,
+	0x2424: 0x000c, 0x2425: 0x000c, 0x2426: 0x000c, 0x2427: 0x000c, 0x2428: 0x000c, 0x2429: 0x000c,
+	0x242a: 0x000c, 0x242b: 0x000c, 0x242c: 0x000c, 0x242d: 0x000c, 0x242e: 0x000c, 0x242f: 0x000c,
+	0x2430: 0x000a, 0x2431: 0x000a, 0x2432: 0x000a, 0x2433: 0x000a, 0x2434: 0x000a, 0x2435: 0x000a,
+	0x2436: 0x000a, 0x2437: 0x000a, 0x2438: 0x000a, 0x2439: 0x000a, 0x243a: 0x000a, 0x243b: 0x000a,
+	0x243c: 0x000a, 0x243d: 0x000a, 0x243e: 0x000a, 0x243f: 0x000a,
+	// Block 0x91, offset 0x2440
+	0x2440: 0x000a, 0x2441: 0x000a, 0x2442: 0x000a, 0x2443: 0x000a, 0x2444: 0x000a, 0x2445: 0x000a,
+	0x2446: 0x000a, 0x2447: 0x000a, 0x2448: 0x000a, 0x2449: 0x000a, 0x244a: 0x000a, 0x244b: 0x000a,
+	0x244c: 0x000a, 0x244d: 0x000a, 0x244e: 0x000a, 0x244f: 0x000a, 0x2450: 0x0006, 0x2451: 0x000a,
+	0x2452: 0x0006, 0x2454: 0x000a, 0x2455: 0x0006, 0x2456: 0x000a, 0x2457: 0x000a,
+	0x2458: 0x000a, 0x2459: 0x009a, 0x245a: 0x008a, 0x245b: 0x007a, 0x245c: 0x006a, 0x245d: 0x009a,
+	0x245e: 0x008a, 0x245f: 0x0004, 0x2460: 0x000a, 0x2461: 0x000a, 0x2462: 0x0003, 0x2463: 0x0003,
+	0x2464: 0x000a, 0x2465: 0x000a, 0x2466: 0x000a, 0x2468: 0x000a, 0x2469: 0x0004,
+	0x246a: 0x0004, 0x246b: 0x000a,
+	0x2470: 0x000d, 0x2471: 0x000d, 0x2472: 0x000d, 0x2473: 0x000d, 0x2474: 0x000d, 0x2475: 0x000d,
+	0x2476: 0x000d, 0x2477: 0x000d, 0x2478: 0x000d, 0x2479: 0x000d, 0x247a: 0x000d, 0x247b: 0x000d,
+	0x247c: 0x000d, 0x247d: 0x000d, 0x247e: 0x000d, 0x247f: 0x000d,
+	// Block 0x92, offset 0x2480
+	0x2480: 0x000d, 0x2481: 0x000d, 0x2482: 0x000d, 0x2483: 0x000d, 0x2484: 0x000d, 0x2485: 0x000d,
+	0x2486: 0x000d, 0x2487: 0x000d, 0x2488: 0x000d, 0x2489: 0x000d, 0x248a: 0x000d, 0x248b: 0x000d,
+	0x248c: 0x000d, 0x248d: 0x000d, 0x248e: 0x000d, 0x248f: 0x000d, 0x2490: 0x000d, 0x2491: 0x000d,
+	0x2492: 0x000d, 0x2493: 0x000d, 0x2494: 0x000d, 0x2495: 0x000d, 0x2496: 0x000d, 0x2497: 0x000d,
+	0x2498: 0x000d, 0x2499: 0x000d, 0x249a: 0x000d, 0x249b: 0x000d, 0x249c: 0x000d, 0x249d: 0x000d,
+	0x249e: 0x000d, 0x249f: 0x000d, 0x24a0: 0x000d, 0x24a1: 0x000d, 0x24a2: 0x000d, 0x24a3: 0x000d,
+	0x24a4: 0x000d, 0x24a5: 0x000d, 0x24a6: 0x000d, 0x24a7: 0x000d, 0x24a8: 0x000d, 0x24a9: 0x000d,
+	0x24aa: 0x000d, 0x24ab: 0x000d, 0x24ac: 0x000d, 0x24ad: 0x000d, 0x24ae: 0x000d, 0x24af: 0x000d,
+	0x24b0: 0x000d, 0x24b1: 0x000d, 0x24b2: 0x000d, 0x24b3: 0x000d, 0x24b4: 0x000d, 0x24b5: 0x000d,
+	0x24b6: 0x000d, 0x24b7: 0x000d, 0x24b8: 0x000d, 0x24b9: 0x000d, 0x24ba: 0x000d, 0x24bb: 0x000d,
+	0x24bc: 0x000d, 0x24bd: 0x000d, 0x24be: 0x000d, 0x24bf: 0x000b,
+	// Block 0x93, offset 0x24c0
+	0x24c1: 0x000a, 0x24c2: 0x000a, 0x24c3: 0x0004, 0x24c4: 0x0004, 0x24c5: 0x0004,
+	0x24c6: 0x000a, 0x24c7: 0x000a, 0x24c8: 0x003a, 0x24c9: 0x002a, 0x24ca: 0x000a, 0x24cb: 0x0003,
+	0x24cc: 0x0006, 0x24cd: 0x0003, 0x24ce: 0x0006, 0x24cf: 0x0006, 0x24d0: 0x0002, 0x24d1: 0x0002,
+	0x24d2: 0x0002, 0x24d3: 0x0002, 0x24d4: 0x0002, 0x24d5: 0x0002, 0x24d6: 0x0002, 0x24d7: 0x0002,
+	0x24d8: 0x0002, 0x24d9: 0x0002, 0x24da: 0x0006, 0x24db: 0x000a, 0x24dc: 0x000a, 0x24dd: 0x000a,
+	0x24de: 0x000a, 0x24df: 0x000a, 0x24e0: 0x000a,
+	0x24fb: 0x005a,
+	0x24fc: 0x000a, 0x24fd: 0x004a, 0x24fe: 0x000a, 0x24ff: 0x000a,
+	// Block 0x94, offset 0x2500
+	0x2500: 0x000a,
+	0x251b: 0x005a, 0x251c: 0x000a, 0x251d: 0x004a,
+	0x251e: 0x000a, 0x251f: 0x00fa, 0x2520: 0x00ea, 0x2521: 0x000a, 0x2522: 0x003a, 0x2523: 0x002a,
+	0x2524: 0x000a, 0x2525: 0x000a,
+	// Block 0x95, offset 0x2540
+	0x2560: 0x0004, 0x2561: 0x0004, 0x2562: 0x000a, 0x2563: 0x000a,
+	0x2564: 0x000a, 0x2565: 0x0004, 0x2566: 0x0004, 0x2568: 0x000a, 0x2569: 0x000a,
+	0x256a: 0x000a, 0x256b: 0x000a, 0x256c: 0x000a, 0x256d: 0x000a, 0x256e: 0x000a,
+	0x2570: 0x000b, 0x2571: 0x000b, 0x2572: 0x000b, 0x2573: 0x000b, 0x2574: 0x000b, 0x2575: 0x000b,
+	0x2576: 0x000b, 0x2577: 0x000b, 0x2578: 0x000b, 0x2579: 0x000a, 0x257a: 0x000a, 0x257b: 0x000a,
+	0x257c: 0x000a, 0x257d: 0x000a, 0x257e: 0x000b, 0x257f: 0x000b,
+	// Block 0x96, offset 0x2580
+	0x2581: 0x000a,
+	// Block 0x97, offset 0x25c0
+	0x25c0: 0x000a, 0x25c1: 0x000a, 0x25c2: 0x000a, 0x25c3: 0x000a, 0x25c4: 0x000a, 0x25c5: 0x000a,
+	0x25c6: 0x000a, 0x25c7: 0x000a, 0x25c8: 0x000a, 0x25c9: 0x000a, 0x25ca: 0x000a, 0x25cb: 0x000a,
+	0x25cc: 0x000a, 0x25d0: 0x000a, 0x25d1: 0x000a,
+	0x25d2: 0x000a, 0x25d3: 0x000a, 0x25d4: 0x000a, 0x25d5: 0x000a, 0x25d6: 0x000a, 0x25d7: 0x000a,
+	0x25d8: 0x000a, 0x25d9: 0x000a, 0x25da: 0x000a, 0x25db: 0x000a,
+	0x25e0: 0x000a,
+	// Block 0x98, offset 0x2600
+	0x263d: 0x000c,
+	// Block 0x99, offset 0x2640
+	0x2660: 0x000c, 0x2661: 0x0002, 0x2662: 0x0002, 0x2663: 0x0002,
+	0x2664: 0x0002, 0x2665: 0x0002, 0x2666: 0x0002, 0x2667: 0x0002, 0x2668: 0x0002, 0x2669: 0x0002,
+	0x266a: 0x0002, 0x266b: 0x0002, 0x266c: 0x0002, 0x266d: 0x0002, 0x266e: 0x0002, 0x266f: 0x0002,
+	0x2670: 0x0002, 0x2671: 0x0002, 0x2672: 0x0002, 0x2673: 0x0002, 0x2674: 0x0002, 0x2675: 0x0002,
+	0x2676: 0x0002, 0x2677: 0x0002, 0x2678: 0x0002, 0x2679: 0x0002, 0x267a: 0x0002, 0x267b: 0x0002,
+	// Block 0x9a, offset 0x2680
+	0x26b6: 0x000c, 0x26b7: 0x000c, 0x26b8: 0x000c, 0x26b9: 0x000c, 0x26ba: 0x000c,
+	// Block 0x9b, offset 0x26c0
+	0x26c0: 0x0001, 0x26c1: 0x0001, 0x26c2: 0x0001, 0x26c3: 0x0001, 0x26c4: 0x0001, 0x26c5: 0x0001,
+	0x26c6: 0x0001, 0x26c7: 0x0001, 0x26c8: 0x0001, 0x26c9: 0x0001, 0x26ca: 0x0001, 0x26cb: 0x0001,
+	0x26cc: 0x0001, 0x26cd: 0x0001, 0x26ce: 0x0001, 0x26cf: 0x0001, 0x26d0: 0x0001, 0x26d1: 0x0001,
+	0x26d2: 0x0001, 0x26d3: 0x0001, 0x26d4: 0x0001, 0x26d5: 0x0001, 0x26d6: 0x0001, 0x26d7: 0x0001,
+	0x26d8: 0x0001, 0x26d9: 0x0001, 0x26da: 0x0001, 0x26db: 0x0001, 0x26dc: 0x0001, 0x26dd: 0x0001,
+	0x26de: 0x0001, 0x26df: 0x0001, 0x26e0: 0x0001, 0x26e1: 0x0001, 0x26e2: 0x0001, 0x26e3: 0x0001,
+	0x26e4: 0x0001, 0x26e5: 0x0001, 0x26e6: 0x0001, 0x26e7: 0x0001, 0x26e8: 0x0001, 0x26e9: 0x0001,
+	0x26ea: 0x0001, 0x26eb: 0x0001, 0x26ec: 0x0001, 0x26ed: 0x0001, 0x26ee: 0x0001, 0x26ef: 0x0001,
+	0x26f0: 0x0001, 0x26f1: 0x0001, 0x26f2: 0x0001, 0x26f3: 0x0001, 0x26f4: 0x0001, 0x26f5: 0x0001,
+	0x26f6: 0x0001, 0x26f7: 0x0001, 0x26f8: 0x0001, 0x26f9: 0x0001, 0x26fa: 0x0001, 0x26fb: 0x0001,
+	0x26fc: 0x0001, 0x26fd: 0x0001, 0x26fe: 0x0001, 0x26ff: 0x0001,
+	// Block 0x9c, offset 0x2700
+	0x2700: 0x0001, 0x2701: 0x0001, 0x2702: 0x0001, 0x2703: 0x0001, 0x2704: 0x0001, 0x2705: 0x0001,
+	0x2706: 0x0001, 0x2707: 0x0001, 0x2708: 0x0001, 0x2709: 0x0001, 0x270a: 0x0001, 0x270b: 0x0001,
+	0x270c: 0x0001, 0x270d: 0x0001, 0x270e: 0x0001, 0x270f: 0x0001, 0x2710: 0x0001, 0x2711: 0x0001,
+	0x2712: 0x0001, 0x2713: 0x0001, 0x2714: 0x0001, 0x2715: 0x0001, 0x2716: 0x0001, 0x2717: 0x0001,
+	0x2718: 0x0001, 0x2719: 0x0001, 0x271a: 0x0001, 0x271b: 0x0001, 0x271c: 0x0001, 0x271d: 0x0001,
+	0x271e: 0x0001, 0x271f: 0x000a, 0x2720: 0x0001, 0x2721: 0x0001, 0x2722: 0x0001, 0x2723: 0x0001,
+	0x2724: 0x0001, 0x2725: 0x0001, 0x2726: 0x0001, 0x2727: 0x0001, 0x2728: 0x0001, 0x2729: 0x0001,
+	0x272a: 0x0001, 0x272b: 0x0001, 0x272c: 0x0001, 0x272d: 0x0001, 0x272e: 0x0001, 0x272f: 0x0001,
+	0x2730: 0x0001, 0x2731: 0x0001, 0x2732: 0x0001, 0x2733: 0x0001, 0x2734: 0x0001, 0x2735: 0x0001,
+	0x2736: 0x0001, 0x2737: 0x0001, 0x2738: 0x0001, 0x2739: 0x0001, 0x273a: 0x0001, 0x273b: 0x0001,
+	0x273c: 0x0001, 0x273d: 0x0001, 0x273e: 0x0001, 0x273f: 0x0001,
+	// Block 0x9d, offset 0x2740
+	0x2740: 0x0001, 0x2741: 0x000c, 0x2742: 0x000c, 0x2743: 0x000c, 0x2744: 0x0001, 0x2745: 0x000c,
+	0x2746: 0x000c, 0x2747: 0x0001, 0x2748: 0x0001, 0x2749: 0x0001, 0x274a: 0x0001, 0x274b: 0x0001,
+	0x274c: 0x000c, 0x274d: 0x000c, 0x274e: 0x000c, 0x274f: 0x000c, 0x2750: 0x0001, 0x2751: 0x0001,
+	0x2752: 0x0001, 0x2753: 0x0001, 0x2754: 0x0001, 0x2755: 0x0001, 0x2756: 0x0001, 0x2757: 0x0001,
+	0x2758: 0x0001, 0x2759: 0x0001, 0x275a: 0x0001, 0x275b: 0x0001, 0x275c: 0x0001, 0x275d: 0x0001,
+	0x275e: 0x0001, 0x275f: 0x0001, 0x2760: 0x0001, 0x2761: 0x0001, 0x2762: 0x0001, 0x2763: 0x0001,
+	0x2764: 0x0001, 0x2765: 0x0001, 0x2766: 0x0001, 0x2767: 0x0001, 0x2768: 0x0001, 0x2769: 0x0001,
+	0x276a: 0x0001, 0x276b: 0x0001, 0x276c: 0x0001, 0x276d: 0x0001, 0x276e: 0x0001, 0x276f: 0x0001,
+	0x2770: 0x0001, 0x2771: 0x0001, 0x2772: 0x0001, 0x2773: 0x0001, 0x2774: 0x0001, 0x2775: 0x0001,
+	0x2776: 0x0001, 0x2777: 0x0001, 0x2778: 0x000c, 0x2779: 0x000c, 0x277a: 0x000c, 0x277b: 0x0001,
+	0x277c: 0x0001, 0x277d: 0x0001, 0x277e: 0x0001, 0x277f: 0x000c,
+	// Block 0x9e, offset 0x2780
+	0x2780: 0x0001, 0x2781: 0x0001, 0x2782: 0x0001, 0x2783: 0x0001, 0x2784: 0x0001, 0x2785: 0x0001,
+	0x2786: 0x0001, 0x2787: 0x0001, 0x2788: 0x0001, 0x2789: 0x0001, 0x278a: 0x0001, 0x278b: 0x0001,
+	0x278c: 0x0001, 0x278d: 0x0001, 0x278e: 0x0001, 0x278f: 0x0001, 0x2790: 0x0001, 0x2791: 0x0001,
+	0x2792: 0x0001, 0x2793: 0x0001, 0x2794: 0x0001, 0x2795: 0x0001, 0x2796: 0x0001, 0x2797: 0x0001,
+	0x2798: 0x0001, 0x2799: 0x0001, 0x279a: 0x0001, 0x279b: 0x0001, 0x279c: 0x0001, 0x279d: 0x0001,
+	0x279e: 0x0001, 0x279f: 0x0001, 0x27a0: 0x0001, 0x27a1: 0x0001, 0x27a2: 0x0001, 0x27a3: 0x0001,
+	0x27a4: 0x0001, 0x27a5: 0x000c, 0x27a6: 0x000c, 0x27a7: 0x0001, 0x27a8: 0x0001, 0x27a9: 0x0001,
+	0x27aa: 0x0001, 0x27ab: 0x0001, 0x27ac: 0x0001, 0x27ad: 0x0001, 0x27ae: 0x0001, 0x27af: 0x0001,
+	0x27b0: 0x0001, 0x27b1: 0x0001, 0x27b2: 0x0001, 0x27b3: 0x0001, 0x27b4: 0x0001, 0x27b5: 0x0001,
+	0x27b6: 0x0001, 0x27b7: 0x0001, 0x27b8: 0x0001, 0x27b9: 0x0001, 0x27ba: 0x0001, 0x27bb: 0x0001,
+	0x27bc: 0x0001, 0x27bd: 0x0001, 0x27be: 0x0001, 0x27bf: 0x0001,
+	// Block 0x9f, offset 0x27c0
+	0x27c0: 0x0001, 0x27c1: 0x0001, 0x27c2: 0x0001, 0x27c3: 0x0001, 0x27c4: 0x0001, 0x27c5: 0x0001,
+	0x27c6: 0x0001, 0x27c7: 0x0001, 0x27c8: 0x0001, 0x27c9: 0x0001, 0x27ca: 0x0001, 0x27cb: 0x0001,
+	0x27cc: 0x0001, 0x27cd: 0x0001, 0x27ce: 0x0001, 0x27cf: 0x0001, 0x27d0: 0x0001, 0x27d1: 0x0001,
+	0x27d2: 0x0001, 0x27d3: 0x0001, 0x27d4: 0x0001, 0x27d5: 0x0001, 0x27d6: 0x0001, 0x27d7: 0x0001,
+	0x27d8: 0x0001, 0x27d9: 0x0001, 0x27da: 0x0001, 0x27db: 0x0001, 0x27dc: 0x0001, 0x27dd: 0x0001,
+	0x27de: 0x0001, 0x27df: 0x0001, 0x27e0: 0x0001, 0x27e1: 0x0001, 0x27e2: 0x0001, 0x27e3: 0x0001,
+	0x27e4: 0x0001, 0x27e5: 0x0001, 0x27e6: 0x0001, 0x27e7: 0x0001, 0x27e8: 0x0001, 0x27e9: 0x0001,
+	0x27ea: 0x0001, 0x27eb: 0x0001, 0x27ec: 0x0001, 0x27ed: 0x0001, 0x27ee: 0x0001, 0x27ef: 0x0001,
+	0x27f0: 0x0001, 0x27f1: 0x0001, 0x27f2: 0x0001, 0x27f3: 0x0001, 0x27f4: 0x0001, 0x27f5: 0x0001,
+	0x27f6: 0x0001, 0x27f7: 0x0001, 0x27f8: 0x0001, 0x27f9: 0x000a, 0x27fa: 0x000a, 0x27fb: 0x000a,
+	0x27fc: 0x000a, 0x27fd: 0x000a, 0x27fe: 0x000a, 0x27ff: 0x000a,
+	// Block 0xa0, offset 0x2800
+	0x2800: 0x000d, 0x2801: 0x000d, 0x2802: 0x000d, 0x2803: 0x000d, 0x2804: 0x000d, 0x2805: 0x000d,
+	0x2806: 0x000d, 0x2807: 0x000d, 0x2808: 0x000d, 0x2809: 0x000d, 0x280a: 0x000d, 0x280b: 0x000d,
+	0x280c: 0x000d, 0x280d: 0x000d, 0x280e: 0x000d, 0x280f: 0x000d, 0x2810: 0x000d, 0x2811: 0x000d,
+	0x2812: 0x000d, 0x2813: 0x000d, 0x2814: 0x000d, 0x2815: 0x000d, 0x2816: 0x000d, 0x2817: 0x000d,
+	0x2818: 0x000d, 0x2819: 0x000d, 0x281a: 0x000d, 0x281b: 0x000d, 0x281c: 0x000d, 0x281d: 0x000d,
+	0x281e: 0x000d, 0x281f: 0x000d, 0x2820: 0x000d, 0x2821: 0x000d, 0x2822: 0x000d, 0x2823: 0x000d,
+	0x2824: 0x000c, 0x2825: 0x000c, 0x2826: 0x000c, 0x2827: 0x000c, 0x2828: 0x000d, 0x2829: 0x000d,
+	0x282a: 0x000d, 0x282b: 0x000d, 0x282c: 0x000d, 0x282d: 0x000d, 0x282e: 0x000d, 0x282f: 0x000d,
+	0x2830: 0x0005, 0x2831: 0x0005, 0x2832: 0x0005, 0x2833: 0x0005, 0x2834: 0x0005, 0x2835: 0x0005,
+	0x2836: 0x0005, 0x2837: 0x0005, 0x2838: 0x0005, 0x2839: 0x0005, 0x283a: 0x000d, 0x283b: 0x000d,
+	0x283c: 0x000d, 0x283d: 0x000d, 0x283e: 0x000d, 0x283f: 0x000d,
+	// Block 0xa1, offset 0x2840
+	0x2840: 0x0001, 0x2841: 0x0001, 0x2842: 0x0001, 0x2843: 0x0001, 0x2844: 0x0001, 0x2845: 0x0001,
+	0x2846: 0x0001, 0x2847: 0x0001, 0x2848: 0x0001, 0x2849: 0x0001, 0x284a: 0x0001, 0x284b: 0x0001,
+	0x284c: 0x0001, 0x284d: 0x0001, 0x284e: 0x0001, 0x284f: 0x0001, 0x2850: 0x0001, 0x2851: 0x0001,
+	0x2852: 0x0001, 0x2853: 0x0001, 0x2854: 0x0001, 0x2855: 0x0001, 0x2856: 0x0001, 0x2857: 0x0001,
+	0x2858: 0x0001, 0x2859: 0x0001, 0x285a: 0x0001, 0x285b: 0x0001, 0x285c: 0x0001, 0x285d: 0x0001,
+	0x285e: 0x0001, 0x285f: 0x0001, 0x2860: 0x0005, 0x2861: 0x0005, 0x2862: 0x0005, 0x2863: 0x0005,
+	0x2864: 0x0005, 0x2865: 0x0005, 0x2866: 0x0005, 0x2867: 0x0005, 0x2868: 0x0005, 0x2869: 0x0005,
+	0x286a: 0x0005, 0x286b: 0x0005, 0x286c: 0x0005, 0x286d: 0x0005, 0x286e: 0x0005, 0x286f: 0x0005,
+	0x2870: 0x0005, 0x2871: 0x0005, 0x2872: 0x0005, 0x2873: 0x0005, 0x2874: 0x0005, 0x2875: 0x0005,
+	0x2876: 0x0005, 0x2877: 0x0005, 0x2878: 0x0005, 0x2879: 0x0005, 0x287a: 0x0005, 0x287b: 0x0005,
+	0x287c: 0x0005, 0x287d: 0x0005, 0x287e: 0x0005, 0x287f: 0x0001,
+	// Block 0xa2, offset 0x2880
+	0x2880: 0x0001, 0x2881: 0x0001, 0x2882: 0x0001, 0x2883: 0x0001, 0x2884: 0x0001, 0x2885: 0x0001,
+	0x2886: 0x0001, 0x2887: 0x0001, 0x2888: 0x0001, 0x2889: 0x0001, 0x288a: 0x0001, 0x288b: 0x0001,
+	0x288c: 0x0001, 0x288d: 0x0001, 0x288e: 0x0001, 0x288f: 0x0001, 0x2890: 0x0001, 0x2891: 0x0001,
+	0x2892: 0x0001, 0x2893: 0x0001, 0x2894: 0x0001, 0x2895: 0x0001, 0x2896: 0x0001, 0x2897: 0x0001,
+	0x2898: 0x0001, 0x2899: 0x0001, 0x289a: 0x0001, 0x289b: 0x0001, 0x289c: 0x0001, 0x289d: 0x0001,
+	0x289e: 0x0001, 0x289f: 0x0001, 0x28a0: 0x0001, 0x28a1: 0x0001, 0x28a2: 0x0001, 0x28a3: 0x0001,
+	0x28a4: 0x0001, 0x28a5: 0x0001, 0x28a6: 0x0001, 0x28a7: 0x0001, 0x28a8: 0x0001, 0x28a9: 0x0001,
+	0x28aa: 0x0001, 0x28ab: 0x0001, 0x28ac: 0x0001, 0x28ad: 0x0001, 0x28ae: 0x0001, 0x28af: 0x0001,
+	0x28b0: 0x000d, 0x28b1: 0x000d, 0x28b2: 0x000d, 0x28b3: 0x000d, 0x28b4: 0x000d, 0x28b5: 0x000d,
+	0x28b6: 0x000d, 0x28b7: 0x000d, 0x28b8: 0x000d, 0x28b9: 0x000d, 0x28ba: 0x000d, 0x28bb: 0x000d,
+	0x28bc: 0x000d, 0x28bd: 0x000d, 0x28be: 0x000d, 0x28bf: 0x000d,
+	// Block 0xa3, offset 0x28c0
+	0x28c0: 0x000d, 0x28c1: 0x000d, 0x28c2: 0x000d, 0x28c3: 0x000d, 0x28c4: 0x000d, 0x28c5: 0x000d,
+	0x28c6: 0x000c, 0x28c7: 0x000c, 0x28c8: 0x000c, 0x28c9: 0x000c, 0x28ca: 0x000c, 0x28cb: 0x000c,
+	0x28cc: 0x000c, 0x28cd: 0x000c, 0x28ce: 0x000c, 0x28cf: 0x000c, 0x28d0: 0x000c, 0x28d1: 0x000d,
+	0x28d2: 0x000d, 0x28d3: 0x000d, 0x28d4: 0x000d, 0x28d5: 0x000d, 0x28d6: 0x000d, 0x28d7: 0x000d,
+	0x28d8: 0x000d, 0x28d9: 0x000d, 0x28da: 0x000d, 0x28db: 0x000d, 0x28dc: 0x000d, 0x28dd: 0x000d,
+	0x28de: 0x000d, 0x28df: 0x000d, 0x28e0: 0x000d, 0x28e1: 0x000d, 0x28e2: 0x000d, 0x28e3: 0x000d,
+	0x28e4: 0x000d, 0x28e5: 0x000d, 0x28e6: 0x000d, 0x28e7: 0x000d, 0x28e8: 0x000d, 0x28e9: 0x000d,
+	0x28ea: 0x000d, 0x28eb: 0x000d, 0x28ec: 0x000d, 0x28ed: 0x000d, 0x28ee: 0x000d, 0x28ef: 0x000d,
+	0x28f0: 0x0001, 0x28f1: 0x0001, 0x28f2: 0x0001, 0x28f3: 0x0001, 0x28f4: 0x0001, 0x28f5: 0x0001,
+	0x28f6: 0x0001, 0x28f7: 0x0001, 0x28f8: 0x0001, 0x28f9: 0x0001, 0x28fa: 0x0001, 0x28fb: 0x0001,
+	0x28fc: 0x0001, 0x28fd: 0x0001, 0x28fe: 0x0001, 0x28ff: 0x0001,
+	// Block 0xa4, offset 0x2900
+	0x2901: 0x000c,
+	0x2938: 0x000c, 0x2939: 0x000c, 0x293a: 0x000c, 0x293b: 0x000c,
+	0x293c: 0x000c, 0x293d: 0x000c, 0x293e: 0x000c, 0x293f: 0x000c,
+	// Block 0xa5, offset 0x2940
+	0x2940: 0x000c, 0x2941: 0x000c, 0x2942: 0x000c, 0x2943: 0x000c, 0x2944: 0x000c, 0x2945: 0x000c,
+	0x2946: 0x000c,
+	0x2952: 0x000a, 0x2953: 0x000a, 0x2954: 0x000a, 0x2955: 0x000a, 0x2956: 0x000a, 0x2957: 0x000a,
+	0x2958: 0x000a, 0x2959: 0x000a, 0x295a: 0x000a, 0x295b: 0x000a, 0x295c: 0x000a, 0x295d: 0x000a,
+	0x295e: 0x000a, 0x295f: 0x000a, 0x2960: 0x000a, 0x2961: 0x000a, 0x2962: 0x000a, 0x2963: 0x000a,
+	0x2964: 0x000a, 0x2965: 0x000a,
+	0x297f: 0x000c,
+	// Block 0xa6, offset 0x2980
+	0x2980: 0x000c, 0x2981: 0x000c,
+	0x29b3: 0x000c, 0x29b4: 0x000c, 0x29b5: 0x000c,
+	0x29b6: 0x000c, 0x29b9: 0x000c, 0x29ba: 0x000c,
+	// Block 0xa7, offset 0x29c0
+	0x29c0: 0x000c, 0x29c1: 0x000c, 0x29c2: 0x000c,
+	0x29e7: 0x000c, 0x29e8: 0x000c, 0x29e9: 0x000c,
+	0x29ea: 0x000c, 0x29eb: 0x000c, 0x29ed: 0x000c, 0x29ee: 0x000c, 0x29ef: 0x000c,
+	0x29f0: 0x000c, 0x29f1: 0x000c, 0x29f2: 0x000c, 0x29f3: 0x000c, 0x29f4: 0x000c,
+	// Block 0xa8, offset 0x2a00
+	0x2a33: 0x000c,
+	// Block 0xa9, offset 0x2a40
+	0x2a40: 0x000c, 0x2a41: 0x000c,
+	0x2a76: 0x000c, 0x2a77: 0x000c, 0x2a78: 0x000c, 0x2a79: 0x000c, 0x2a7a: 0x000c, 0x2a7b: 0x000c,
+	0x2a7c: 0x000c, 0x2a7d: 0x000c, 0x2a7e: 0x000c,
+	// Block 0xaa, offset 0x2a80
+	0x2a89: 0x000c, 0x2a8a: 0x000c, 0x2a8b: 0x000c,
+	0x2a8c: 0x000c,
+	// Block 0xab, offset 0x2ac0
+	0x2aef: 0x000c,
+	0x2af0: 0x000c, 0x2af1: 0x000c, 0x2af4: 0x000c,
+	0x2af6: 0x000c, 0x2af7: 0x000c,
+	0x2afe: 0x000c,
+	// Block 0xac, offset 0x2b00
+	0x2b1f: 0x000c, 0x2b23: 0x000c,
+	0x2b24: 0x000c, 0x2b25: 0x000c, 0x2b26: 0x000c, 0x2b27: 0x000c, 0x2b28: 0x000c, 0x2b29: 0x000c,
+	0x2b2a: 0x000c,
+	// Block 0xad, offset 0x2b40
+	0x2b40: 0x000c,
+	0x2b66: 0x000c, 0x2b67: 0x000c, 0x2b68: 0x000c, 0x2b69: 0x000c,
+	0x2b6a: 0x000c, 0x2b6b: 0x000c, 0x2b6c: 0x000c,
+	0x2b70: 0x000c, 0x2b71: 0x000c, 0x2b72: 0x000c, 0x2b73: 0x000c, 0x2b74: 0x000c,
+	// Block 0xae, offset 0x2b80
+	0x2bb8: 0x000c, 0x2bb9: 0x000c, 0x2bba: 0x000c, 0x2bbb: 0x000c,
+	0x2bbc: 0x000c, 0x2bbd: 0x000c, 0x2bbe: 0x000c, 0x2bbf: 0x000c,
+	// Block 0xaf, offset 0x2bc0
+	0x2bc2: 0x000c, 0x2bc3: 0x000c, 0x2bc4: 0x000c,
+	0x2bc6: 0x000c,
+	0x2bde: 0x000c,
+	// Block 0xb0, offset 0x2c00
+	0x2c33: 0x000c, 0x2c34: 0x000c, 0x2c35: 0x000c,
+	0x2c36: 0x000c, 0x2c37: 0x000c, 0x2c38: 0x000c, 0x2c3a: 0x000c,
+	0x2c3f: 0x000c,
+	// Block 0xb1, offset 0x2c40
+	0x2c40: 0x000c, 0x2c42: 0x000c, 0x2c43: 0x000c,
+	// Block 0xb2, offset 0x2c80
+	0x2cb2: 0x000c, 0x2cb3: 0x000c, 0x2cb4: 0x000c, 0x2cb5: 0x000c,
+	0x2cbc: 0x000c, 0x2cbd: 0x000c, 0x2cbf: 0x000c,
+	// Block 0xb3, offset 0x2cc0
+	0x2cc0: 0x000c,
+	0x2cdc: 0x000c, 0x2cdd: 0x000c,
+	// Block 0xb4, offset 0x2d00
+	0x2d33: 0x000c, 0x2d34: 0x000c, 0x2d35: 0x000c,
+	0x2d36: 0x000c, 0x2d37: 0x000c, 0x2d38: 0x000c, 0x2d39: 0x000c, 0x2d3a: 0x000c,
+	0x2d3d: 0x000c, 0x2d3f: 0x000c,
+	// Block 0xb5, offset 0x2d40
+	0x2d40: 0x000c,
+	0x2d60: 0x000a, 0x2d61: 0x000a, 0x2d62: 0x000a, 0x2d63: 0x000a,
+	0x2d64: 0x000a, 0x2d65: 0x000a, 0x2d66: 0x000a, 0x2d67: 0x000a, 0x2d68: 0x000a, 0x2d69: 0x000a,
+	0x2d6a: 0x000a, 0x2d6b: 0x000a, 0x2d6c: 0x000a,
+	// Block 0xb6, offset 0x2d80
+	0x2dab: 0x000c, 0x2dad: 0x000c,
+	0x2db0: 0x000c, 0x2db1: 0x000c, 0x2db2: 0x000c, 0x2db3: 0x000c, 0x2db4: 0x000c, 0x2db5: 0x000c,
+	0x2db7: 0x000c,
+	// Block 0xb7, offset 0x2dc0
+	0x2ddd: 0x000c,
+	0x2dde: 0x000c, 0x2ddf: 0x000c, 0x2de2: 0x000c, 0x2de3: 0x000c,
+	0x2de4: 0x000c, 0x2de5: 0x000c, 0x2de7: 0x000c, 0x2de8: 0x000c, 0x2de9: 0x000c,
+	0x2dea: 0x000c, 0x2deb: 0x000c,
+	// Block 0xb8, offset 0x2e00
+	0x2e2f: 0x000c,
+	0x2e30: 0x000c, 0x2e31: 0x000c, 0x2e32: 0x000c, 0x2e33: 0x000c, 0x2e34: 0x000c, 0x2e35: 0x000c,
+	0x2e36: 0x000c, 0x2e37: 0x000c, 0x2e39: 0x000c, 0x2e3a: 0x000c,
+	// Block 0xb9, offset 0x2e40
+	0x2e54: 0x000c, 0x2e55: 0x000c, 0x2e56: 0x000c, 0x2e57: 0x000c,
+	0x2e5a: 0x000c, 0x2e5b: 0x000c,
+	0x2e60: 0x000c,
+	// Block 0xba, offset 0x2e80
+	0x2e81: 0x000c, 0x2e82: 0x000c, 0x2e83: 0x000c, 0x2e84: 0x000c, 0x2e85: 0x000c,
+	0x2e86: 0x000c, 0x2e89: 0x000c, 0x2e8a: 0x000c,
+	0x2eb3: 0x000c, 0x2eb4: 0x000c, 0x2eb5: 0x000c,
+	0x2eb6: 0x000c, 0x2eb7: 0x000c, 0x2eb8: 0x000c, 0x2ebb: 0x000c,
+	0x2ebc: 0x000c, 0x2ebd: 0x000c, 0x2ebe: 0x000c,
+	// Block 0xbb, offset 0x2ec0
+	0x2ec7: 0x000c,
+	0x2ed1: 0x000c,
+	0x2ed2: 0x000c, 0x2ed3: 0x000c, 0x2ed4: 0x000c, 0x2ed5: 0x000c, 0x2ed6: 0x000c,
+	0x2ed9: 0x000c, 0x2eda: 0x000c, 0x2edb: 0x000c,
+	// Block 0xbc, offset 0x2f00
+	0x2f0a: 0x000c, 0x2f0b: 0x000c,
+	0x2f0c: 0x000c, 0x2f0d: 0x000c, 0x2f0e: 0x000c, 0x2f0f: 0x000c, 0x2f10: 0x000c, 0x2f11: 0x000c,
+	0x2f12: 0x000c, 0x2f13: 0x000c, 0x2f14: 0x000c, 0x2f15: 0x000c, 0x2f16: 0x000c,
+	0x2f18: 0x000c, 0x2f19: 0x000c,
+	// Block 0xbd, offset 0x2f40
+	0x2f70: 0x000c, 0x2f71: 0x000c, 0x2f72: 0x000c, 0x2f73: 0x000c, 0x2f74: 0x000c, 0x2f75: 0x000c,
+	0x2f76: 0x000c, 0x2f78: 0x000c, 0x2f79: 0x000c, 0x2f7a: 0x000c, 0x2f7b: 0x000c,
+	0x2f7c: 0x000c, 0x2f7d: 0x000c,
+	// Block 0xbe, offset 0x2f80
+	0x2f92: 0x000c, 0x2f93: 0x000c, 0x2f94: 0x000c, 0x2f95: 0x000c, 0x2f96: 0x000c, 0x2f97: 0x000c,
+	0x2f98: 0x000c, 0x2f99: 0x000c, 0x2f9a: 0x000c, 0x2f9b: 0x000c, 0x2f9c: 0x000c, 0x2f9d: 0x000c,
+	0x2f9e: 0x000c, 0x2f9f: 0x000c, 0x2fa0: 0x000c, 0x2fa1: 0x000c, 0x2fa2: 0x000c, 0x2fa3: 0x000c,
+	0x2fa4: 0x000c, 0x2fa5: 0x000c, 0x2fa6: 0x000c, 0x2fa7: 0x000c,
+	0x2faa: 0x000c, 0x2fab: 0x000c, 0x2fac: 0x000c, 0x2fad: 0x000c, 0x2fae: 0x000c, 0x2faf: 0x000c,
+	0x2fb0: 0x000c, 0x2fb2: 0x000c, 0x2fb3: 0x000c, 0x2fb5: 0x000c,
+	0x2fb6: 0x000c,
+	// Block 0xbf, offset 0x2fc0
+	0x2ff1: 0x000c, 0x2ff2: 0x000c, 0x2ff3: 0x000c, 0x2ff4: 0x000c, 0x2ff5: 0x000c,
+	0x2ff6: 0x000c, 0x2ffa: 0x000c,
+	0x2ffc: 0x000c, 0x2ffd: 0x000c, 0x2fff: 0x000c,
+	// Block 0xc0, offset 0x3000
+	0x3000: 0x000c, 0x3001: 0x000c, 0x3002: 0x000c, 0x3003: 0x000c, 0x3004: 0x000c, 0x3005: 0x000c,
+	0x3007: 0x000c,
+	// Block 0xc1, offset 0x3040
+	0x3050: 0x000c, 0x3051: 0x000c,
+	0x3055: 0x000c, 0x3057: 0x000c,
+	// Block 0xc2, offset 0x3080
+	0x30b3: 0x000c, 0x30b4: 0x000c,
+	// Block 0xc3, offset 0x30c0
+	0x30d5: 0x000a, 0x30d6: 0x000a, 0x30d7: 0x000a,
+	0x30d8: 0x000a, 0x30d9: 0x000a, 0x30da: 0x000a, 0x30db: 0x000a, 0x30dc: 0x000a, 0x30dd: 0x0004,
+	0x30de: 0x0004, 0x30df: 0x0004, 0x30e0: 0x0004, 0x30e1: 0x000a, 0x30e2: 0x000a, 0x30e3: 0x000a,
+	0x30e4: 0x000a, 0x30e5: 0x000a, 0x30e6: 0x000a, 0x30e7: 0x000a, 0x30e8: 0x000a, 0x30e9: 0x000a,
+	0x30ea: 0x000a, 0x30eb: 0x000a, 0x30ec: 0x000a, 0x30ed: 0x000a, 0x30ee: 0x000a, 0x30ef: 0x000a,
+	0x30f0: 0x000a, 0x30f1: 0x000a,
+	// Block 0xc4, offset 0x3100
+	0x3130: 0x000c, 0x3131: 0x000c, 0x3132: 0x000c, 0x3133: 0x000c, 0x3134: 0x000c,
+	// Block 0xc5, offset 0x3140
+	0x3170: 0x000c, 0x3171: 0x000c, 0x3172: 0x000c, 0x3173: 0x000c, 0x3174: 0x000c, 0x3175: 0x000c,
+	0x3176: 0x000c,
+	// Block 0xc6, offset 0x3180
+	0x318f: 0x000c,
+	// Block 0xc7, offset 0x31c0
+	0x31cf: 0x000c, 0x31d0: 0x000c, 0x31d1: 0x000c,
+	0x31d2: 0x000c,
+	// Block 0xc8, offset 0x3200
+	0x3222: 0x000a,
+	// Block 0xc9, offset 0x3240
+	0x325d: 0x000c,
+	0x325e: 0x000c, 0x3260: 0x000b, 0x3261: 0x000b, 0x3262: 0x000b, 0x3263: 0x000b,
+	// Block 0xca, offset 0x3280
+	0x32a7: 0x000c, 0x32a8: 0x000c, 0x32a9: 0x000c,
+	0x32b3: 0x000b, 0x32b4: 0x000b, 0x32b5: 0x000b,
+	0x32b6: 0x000b, 0x32b7: 0x000b, 0x32b8: 0x000b, 0x32b9: 0x000b, 0x32ba: 0x000b, 0x32bb: 0x000c,
+	0x32bc: 0x000c, 0x32bd: 0x000c, 0x32be: 0x000c, 0x32bf: 0x000c,
+	// Block 0xcb, offset 0x32c0
+	0x32c0: 0x000c, 0x32c1: 0x000c, 0x32c2: 0x000c, 0x32c5: 0x000c,
+	0x32c6: 0x000c, 0x32c7: 0x000c, 0x32c8: 0x000c, 0x32c9: 0x000c, 0x32ca: 0x000c, 0x32cb: 0x000c,
+	0x32ea: 0x000c, 0x32eb: 0x000c, 0x32ec: 0x000c, 0x32ed: 0x000c,
+	// Block 0xcc, offset 0x3300
+	0x3300: 0x000a, 0x3301: 0x000a, 0x3302: 0x000c, 0x3303: 0x000c, 0x3304: 0x000c, 0x3305: 0x000a,
+	// Block 0xcd, offset 0x3340
+	0x3340: 0x000a, 0x3341: 0x000a, 0x3342: 0x000a, 0x3343: 0x000a, 0x3344: 0x000a, 0x3345: 0x000a,
+	0x3346: 0x000a, 0x3347: 0x000a, 0x3348: 0x000a, 0x3349: 0x000a, 0x334a: 0x000a, 0x334b: 0x000a,
+	0x334c: 0x000a, 0x334d: 0x000a, 0x334e: 0x000a, 0x334f: 0x000a, 0x3350: 0x000a, 0x3351: 0x000a,
+	0x3352: 0x000a, 0x3353: 0x000a, 0x3354: 0x000a, 0x3355: 0x000a, 0x3356: 0x000a,
+	// Block 0xce, offset 0x3380
+	0x339b: 0x000a,
+	// Block 0xcf, offset 0x33c0
+	0x33d5: 0x000a,
+	// Block 0xd0, offset 0x3400
+	0x340f: 0x000a,
+	// Block 0xd1, offset 0x3440
+	0x3449: 0x000a,
+	// Block 0xd2, offset 0x3480
+	0x3483: 0x000a,
+	0x348e: 0x0002, 0x348f: 0x0002, 0x3490: 0x0002, 0x3491: 0x0002,
+	0x3492: 0x0002, 0x3493: 0x0002, 0x3494: 0x0002, 0x3495: 0x0002, 0x3496: 0x0002, 0x3497: 0x0002,
+	0x3498: 0x0002, 0x3499: 0x0002, 0x349a: 0x0002, 0x349b: 0x0002, 0x349c: 0x0002, 0x349d: 0x0002,
+	0x349e: 0x0002, 0x349f: 0x0002, 0x34a0: 0x0002, 0x34a1: 0x0002, 0x34a2: 0x0002, 0x34a3: 0x0002,
+	0x34a4: 0x0002, 0x34a5: 0x0002, 0x34a6: 0x0002, 0x34a7: 0x0002, 0x34a8: 0x0002, 0x34a9: 0x0002,
+	0x34aa: 0x0002, 0x34ab: 0x0002, 0x34ac: 0x0002, 0x34ad: 0x0002, 0x34ae: 0x0002, 0x34af: 0x0002,
+	0x34b0: 0x0002, 0x34b1: 0x0002, 0x34b2: 0x0002, 0x34b3: 0x0002, 0x34b4: 0x0002, 0x34b5: 0x0002,
+	0x34b6: 0x0002, 0x34b7: 0x0002, 0x34b8: 0x0002, 0x34b9: 0x0002, 0x34ba: 0x0002, 0x34bb: 0x0002,
+	0x34bc: 0x0002, 0x34bd: 0x0002, 0x34be: 0x0002, 0x34bf: 0x0002,
+	// Block 0xd3, offset 0x34c0
+	0x34c0: 0x000c, 0x34c1: 0x000c, 0x34c2: 0x000c, 0x34c3: 0x000c, 0x34c4: 0x000c, 0x34c5: 0x000c,
+	0x34c6: 0x000c, 0x34c7: 0x000c, 0x34c8: 0x000c, 0x34c9: 0x000c, 0x34ca: 0x000c, 0x34cb: 0x000c,
+	0x34cc: 0x000c, 0x34cd: 0x000c, 0x34ce: 0x000c, 0x34cf: 0x000c, 0x34d0: 0x000c, 0x34d1: 0x000c,
+	0x34d2: 0x000c, 0x34d3: 0x000c, 0x34d4: 0x000c, 0x34d5: 0x000c, 0x34d6: 0x000c, 0x34d7: 0x000c,
+	0x34d8: 0x000c, 0x34d9: 0x000c, 0x34da: 0x000c, 0x34db: 0x000c, 0x34dc: 0x000c, 0x34dd: 0x000c,
+	0x34de: 0x000c, 0x34df: 0x000c, 0x34e0: 0x000c, 0x34e1: 0x000c, 0x34e2: 0x000c, 0x34e3: 0x000c,
+	0x34e4: 0x000c, 0x34e5: 0x000c, 0x34e6: 0x000c, 0x34e7: 0x000c, 0x34e8: 0x000c, 0x34e9: 0x000c,
+	0x34ea: 0x000c, 0x34eb: 0x000c, 0x34ec: 0x000c, 0x34ed: 0x000c, 0x34ee: 0x000c, 0x34ef: 0x000c,
+	0x34f0: 0x000c, 0x34f1: 0x000c, 0x34f2: 0x000c, 0x34f3: 0x000c, 0x34f4: 0x000c, 0x34f5: 0x000c,
+	0x34f6: 0x000c, 0x34fb: 0x000c,
+	0x34fc: 0x000c, 0x34fd: 0x000c, 0x34fe: 0x000c, 0x34ff: 0x000c,
+	// Block 0xd4, offset 0x3500
+	0x3500: 0x000c, 0x3501: 0x000c, 0x3502: 0x000c, 0x3503: 0x000c, 0x3504: 0x000c, 0x3505: 0x000c,
+	0x3506: 0x000c, 0x3507: 0x000c, 0x3508: 0x000c, 0x3509: 0x000c, 0x350a: 0x000c, 0x350b: 0x000c,
+	0x350c: 0x000c, 0x350d: 0x000c, 0x350e: 0x000c, 0x350f: 0x000c, 0x3510: 0x000c, 0x3511: 0x000c,
+	0x3512: 0x000c, 0x3513: 0x000c, 0x3514: 0x000c, 0x3515: 0x000c, 0x3516: 0x000c, 0x3517: 0x000c,
+	0x3518: 0x000c, 0x3519: 0x000c, 0x351a: 0x000c, 0x351b: 0x000c, 0x351c: 0x000c, 0x351d: 0x000c,
+	0x351e: 0x000c, 0x351f: 0x000c, 0x3520: 0x000c, 0x3521: 0x000c, 0x3522: 0x000c, 0x3523: 0x000c,
+	0x3524: 0x000c, 0x3525: 0x000c, 0x3526: 0x000c, 0x3527: 0x000c, 0x3528: 0x000c, 0x3529: 0x000c,
+	0x352a: 0x000c, 0x352b: 0x000c, 0x352c: 0x000c,
+	0x3535: 0x000c,
+	// Block 0xd5, offset 0x3540
+	0x3544: 0x000c,
+	0x355b: 0x000c, 0x355c: 0x000c, 0x355d: 0x000c,
+	0x355e: 0x000c, 0x355f: 0x000c, 0x3561: 0x000c, 0x3562: 0x000c, 0x3563: 0x000c,
+	0x3564: 0x000c, 0x3565: 0x000c, 0x3566: 0x000c, 0x3567: 0x000c, 0x3568: 0x000c, 0x3569: 0x000c,
+	0x356a: 0x000c, 0x356b: 0x000c, 0x356c: 0x000c, 0x356d: 0x000c, 0x356e: 0x000c, 0x356f: 0x000c,
+	// Block 0xd6, offset 0x3580
+	0x3580: 0x000c, 0x3581: 0x000c, 0x3582: 0x000c, 0x3583: 0x000c, 0x3584: 0x000c, 0x3585: 0x000c,
+	0x3586: 0x000c, 0x3588: 0x000c, 0x3589: 0x000c, 0x358a: 0x000c, 0x358b: 0x000c,
+	0x358c: 0x000c, 0x358d: 0x000c, 0x358e: 0x000c, 0x358f: 0x000c, 0x3590: 0x000c, 0x3591: 0x000c,
+	0x3592: 0x000c, 0x3593: 0x000c, 0x3594: 0x000c, 0x3595: 0x000c, 0x3596: 0x000c, 0x3597: 0x000c,
+	0x3598: 0x000c, 0x359b: 0x000c, 0x359c: 0x000c, 0x359d: 0x000c,
+	0x359e: 0x000c, 0x359f: 0x000c, 0x35a0: 0x000c, 0x35a1: 0x000c, 0x35a3: 0x000c,
+	0x35a4: 0x000c, 0x35a6: 0x000c, 0x35a7: 0x000c, 0x35a8: 0x000c, 0x35a9: 0x000c,
+	0x35aa: 0x000c,
+	// Block 0xd7, offset 0x35c0
+	0x35ec: 0x000c, 0x35ed: 0x000c, 0x35ee: 0x000c, 0x35ef: 0x000c,
+	0x35ff: 0x0004,
+	// Block 0xd8, offset 0x3600
+	0x3600: 0x0001, 0x3601: 0x0001, 0x3602: 0x0001, 0x3603: 0x0001, 0x3604: 0x0001, 0x3605: 0x0001,
+	0x3606: 0x0001, 0x3607: 0x0001, 0x3608: 0x0001, 0x3609: 0x0001, 0x360a: 0x0001, 0x360b: 0x0001,
+	0x360c: 0x0001, 0x360d: 0x0001, 0x360e: 0x0001, 0x360f: 0x0001, 0x3610: 0x000c, 0x3611: 0x000c,
+	0x3612: 0x000c, 0x3613: 0x000c, 0x3614: 0x000c, 0x3615: 0x000c, 0x3616: 0x000c, 0x3617: 0x0001,
+	0x3618: 0x0001, 0x3619: 0x0001, 0x361a: 0x0001, 0x361b: 0x0001, 0x361c: 0x0001, 0x361d: 0x0001,
+	0x361e: 0x0001, 0x361f: 0x0001, 0x3620: 0x0001, 0x3621: 0x0001, 0x3622: 0x0001, 0x3623: 0x0001,
+	0x3624: 0x0001, 0x3625: 0x0001, 0x3626: 0x0001, 0x3627: 0x0001, 0x3628: 0x0001, 0x3629: 0x0001,
+	0x362a: 0x0001, 0x362b: 0x0001, 0x362c: 0x0001, 0x362d: 0x0001, 0x362e: 0x0001, 0x362f: 0x0001,
+	0x3630: 0x0001, 0x3631: 0x0001, 0x3632: 0x0001, 0x3633: 0x0001, 0x3634: 0x0001, 0x3635: 0x0001,
+	0x3636: 0x0001, 0x3637: 0x0001, 0x3638: 0x0001, 0x3639: 0x0001, 0x363a: 0x0001, 0x363b: 0x0001,
+	0x363c: 0x0001, 0x363d: 0x0001, 0x363e: 0x0001, 0x363f: 0x0001,
+	// Block 0xd9, offset 0x3640
+	0x3640: 0x0001, 0x3641: 0x0001, 0x3642: 0x0001, 0x3643: 0x0001, 0x3644: 0x000c, 0x3645: 0x000c,
+	0x3646: 0x000c, 0x3647: 0x000c, 0x3648: 0x000c, 0x3649: 0x000c, 0x364a: 0x000c, 0x364b: 0x0001,
+	0x364c: 0x0001, 0x364d: 0x0001, 0x364e: 0x0001, 0x364f: 0x0001, 0x3650: 0x0001, 0x3651: 0x0001,
+	0x3652: 0x0001, 0x3653: 0x0001, 0x3654: 0x0001, 0x3655: 0x0001, 0x3656: 0x0001, 0x3657: 0x0001,
+	0x3658: 0x0001, 0x3659: 0x0001, 0x365a: 0x0001, 0x365b: 0x0001, 0x365c: 0x0001, 0x365d: 0x0001,
+	0x365e: 0x0001, 0x365f: 0x0001, 0x3660: 0x0001, 0x3661: 0x0001, 0x3662: 0x0001, 0x3663: 0x0001,
+	0x3664: 0x0001, 0x3665: 0x0001, 0x3666: 0x0001, 0x3667: 0x0001, 0x3668: 0x0001, 0x3669: 0x0001,
+	0x366a: 0x0001, 0x366b: 0x0001, 0x366c: 0x0001, 0x366d: 0x0001, 0x366e: 0x0001, 0x366f: 0x0001,
+	0x3670: 0x0001, 0x3671: 0x0001, 0x3672: 0x0001, 0x3673: 0x0001, 0x3674: 0x0001, 0x3675: 0x0001,
+	0x3676: 0x0001, 0x3677: 0x0001, 0x3678: 0x0001, 0x3679: 0x0001, 0x367a: 0x0001, 0x367b: 0x0001,
+	0x367c: 0x0001, 0x367d: 0x0001, 0x367e: 0x0001, 0x367f: 0x0001,
+	// Block 0xda, offset 0x3680
+	0x3680: 0x000d, 0x3681: 0x000d, 0x3682: 0x000d, 0x3683: 0x000d, 0x3684: 0x000d, 0x3685: 0x000d,
+	0x3686: 0x000d, 0x3687: 0x000d, 0x3688: 0x000d, 0x3689: 0x000d, 0x368a: 0x000d, 0x368b: 0x000d,
+	0x368c: 0x000d, 0x368d: 0x000d, 0x368e: 0x000d, 0x368f: 0x000d, 0x3690: 0x0001, 0x3691: 0x0001,
+	0x3692: 0x0001, 0x3693: 0x0001, 0x3694: 0x0001, 0x3695: 0x0001, 0x3696: 0x0001, 0x3697: 0x0001,
+	0x3698: 0x0001, 0x3699: 0x0001, 0x369a: 0x0001, 0x369b: 0x0001, 0x369c: 0x0001, 0x369d: 0x0001,
+	0x369e: 0x0001, 0x369f: 0x0001, 0x36a0: 0x0001, 0x36a1: 0x0001, 0x36a2: 0x0001, 0x36a3: 0x0001,
+	0x36a4: 0x0001, 0x36a5: 0x0001, 0x36a6: 0x0001, 0x36a7: 0x0001, 0x36a8: 0x0001, 0x36a9: 0x0001,
+	0x36aa: 0x0001, 0x36ab: 0x0001, 0x36ac: 0x0001, 0x36ad: 0x0001, 0x36ae: 0x0001, 0x36af: 0x0001,
+	0x36b0: 0x0001, 0x36b1: 0x0001, 0x36b2: 0x0001, 0x36b3: 0x0001, 0x36b4: 0x0001, 0x36b5: 0x0001,
+	0x36b6: 0x0001, 0x36b7: 0x0001, 0x36b8: 0x0001, 0x36b9: 0x0001, 0x36ba: 0x0001, 0x36bb: 0x0001,
+	0x36bc: 0x0001, 0x36bd: 0x0001, 0x36be: 0x0001, 0x36bf: 0x0001,
+	// Block 0xdb, offset 0x36c0
+	0x36c0: 0x000d, 0x36c1: 0x000d, 0x36c2: 0x000d, 0x36c3: 0x000d, 0x36c4: 0x000d, 0x36c5: 0x000d,
+	0x36c6: 0x000d, 0x36c7: 0x000d, 0x36c8: 0x000d, 0x36c9: 0x000d, 0x36ca: 0x000d, 0x36cb: 0x000d,
+	0x36cc: 0x000d, 0x36cd: 0x000d, 0x36ce: 0x000d, 0x36cf: 0x000d, 0x36d0: 0x000d, 0x36d1: 0x000d,
+	0x36d2: 0x000d, 0x36d3: 0x000d, 0x36d4: 0x000d, 0x36d5: 0x000d, 0x36d6: 0x000d, 0x36d7: 0x000d,
+	0x36d8: 0x000d, 0x36d9: 0x000d, 0x36da: 0x000d, 0x36db: 0x000d, 0x36dc: 0x000d, 0x36dd: 0x000d,
+	0x36de: 0x000d, 0x36df: 0x000d, 0x36e0: 0x000d, 0x36e1: 0x000d, 0x36e2: 0x000d, 0x36e3: 0x000d,
+	0x36e4: 0x000d, 0x36e5: 0x000d, 0x36e6: 0x000d, 0x36e7: 0x000d, 0x36e8: 0x000d, 0x36e9: 0x000d,
+	0x36ea: 0x000d, 0x36eb: 0x000d, 0x36ec: 0x000d, 0x36ed: 0x000d, 0x36ee: 0x000d, 0x36ef: 0x000d,
+	0x36f0: 0x000a, 0x36f1: 0x000a, 0x36f2: 0x000d, 0x36f3: 0x000d, 0x36f4: 0x000d, 0x36f5: 0x000d,
+	0x36f6: 0x000d, 0x36f7: 0x000d, 0x36f8: 0x000d, 0x36f9: 0x000d, 0x36fa: 0x000d, 0x36fb: 0x000d,
+	0x36fc: 0x000d, 0x36fd: 0x000d, 0x36fe: 0x000d, 0x36ff: 0x000d,
+	// Block 0xdc, offset 0x3700
+	0x3700: 0x000a, 0x3701: 0x000a, 0x3702: 0x000a, 0x3703: 0x000a, 0x3704: 0x000a, 0x3705: 0x000a,
+	0x3706: 0x000a, 0x3707: 0x000a, 0x3708: 0x000a, 0x3709: 0x000a, 0x370a: 0x000a, 0x370b: 0x000a,
+	0x370c: 0x000a, 0x370d: 0x000a, 0x370e: 0x000a, 0x370f: 0x000a, 0x3710: 0x000a, 0x3711: 0x000a,
+	0x3712: 0x000a, 0x3713: 0x000a, 0x3714: 0x000a, 0x3715: 0x000a, 0x3716: 0x000a, 0x3717: 0x000a,
+	0x3718: 0x000a, 0x3719: 0x000a, 0x371a: 0x000a, 0x371b: 0x000a, 0x371c: 0x000a, 0x371d: 0x000a,
+	0x371e: 0x000a, 0x371f: 0x000a, 0x3720: 0x000a, 0x3721: 0x000a, 0x3722: 0x000a, 0x3723: 0x000a,
+	0x3724: 0x000a, 0x3725: 0x000a, 0x3726: 0x000a, 0x3727: 0x000a, 0x3728: 0x000a, 0x3729: 0x000a,
+	0x372a: 0x000a, 0x372b: 0x000a,
+	0x3730: 0x000a, 0x3731: 0x000a, 0x3732: 0x000a, 0x3733: 0x000a, 0x3734: 0x000a, 0x3735: 0x000a,
+	0x3736: 0x000a, 0x3737: 0x000a, 0x3738: 0x000a, 0x3739: 0x000a, 0x373a: 0x000a, 0x373b: 0x000a,
+	0x373c: 0x000a, 0x373d: 0x000a, 0x373e: 0x000a, 0x373f: 0x000a,
+	// Block 0xdd, offset 0x3740
+	0x3740: 0x000a, 0x3741: 0x000a, 0x3742: 0x000a, 0x3743: 0x000a, 0x3744: 0x000a, 0x3745: 0x000a,
+	0x3746: 0x000a, 0x3747: 0x000a, 0x3748: 0x000a, 0x3749: 0x000a, 0x374a: 0x000a, 0x374b: 0x000a,
+	0x374c: 0x000a, 0x374d: 0x000a, 0x374e: 0x000a, 0x374f: 0x000a, 0x3750: 0x000a, 0x3751: 0x000a,
+	0x3752: 0x000a, 0x3753: 0x000a,
+	0x3760: 0x000a, 0x3761: 0x000a, 0x3762: 0x000a, 0x3763: 0x000a,
+	0x3764: 0x000a, 0x3765: 0x000a, 0x3766: 0x000a, 0x3767: 0x000a, 0x3768: 0x000a, 0x3769: 0x000a,
+	0x376a: 0x000a, 0x376b: 0x000a, 0x376c: 0x000a, 0x376d: 0x000a, 0x376e: 0x000a,
+	0x3771: 0x000a, 0x3772: 0x000a, 0x3773: 0x000a, 0x3774: 0x000a, 0x3775: 0x000a,
+	0x3776: 0x000a, 0x3777: 0x000a, 0x3778: 0x000a, 0x3779: 0x000a, 0x377a: 0x000a, 0x377b: 0x000a,
+	0x377c: 0x000a, 0x377d: 0x000a, 0x377e: 0x000a, 0x377f: 0x000a,
+	// Block 0xde, offset 0x3780
+	0x3781: 0x000a, 0x3782: 0x000a, 0x3783: 0x000a, 0x3784: 0x000a, 0x3785: 0x000a,
+	0x3786: 0x000a, 0x3787: 0x000a, 0x3788: 0x000a, 0x3789: 0x000a, 0x378a: 0x000a, 0x378b: 0x000a,
+	0x378c: 0x000a, 0x378d: 0x000a, 0x378e: 0x000a, 0x378f: 0x000a, 0x3791: 0x000a,
+	0x3792: 0x000a, 0x3793: 0x000a, 0x3794: 0x000a, 0x3795: 0x000a, 0x3796: 0x000a, 0x3797: 0x000a,
+	0x3798: 0x000a, 0x3799: 0x000a, 0x379a: 0x000a, 0x379b: 0x000a, 0x379c: 0x000a, 0x379d: 0x000a,
+	0x379e: 0x000a, 0x379f: 0x000a, 0x37a0: 0x000a, 0x37a1: 0x000a, 0x37a2: 0x000a, 0x37a3: 0x000a,
+	0x37a4: 0x000a, 0x37a5: 0x000a, 0x37a6: 0x000a, 0x37a7: 0x000a, 0x37a8: 0x000a, 0x37a9: 0x000a,
+	0x37aa: 0x000a, 0x37ab: 0x000a, 0x37ac: 0x000a, 0x37ad: 0x000a, 0x37ae: 0x000a, 0x37af: 0x000a,
+	0x37b0: 0x000a, 0x37b1: 0x000a, 0x37b2: 0x000a, 0x37b3: 0x000a, 0x37b4: 0x000a, 0x37b5: 0x000a,
+	// Block 0xdf, offset 0x37c0
+	0x37c0: 0x0002, 0x37c1: 0x0002, 0x37c2: 0x0002, 0x37c3: 0x0002, 0x37c4: 0x0002, 0x37c5: 0x0002,
+	0x37c6: 0x0002, 0x37c7: 0x0002, 0x37c8: 0x0002, 0x37c9: 0x0002, 0x37ca: 0x0002, 0x37cb: 0x000a,
+	0x37cc: 0x000a,
+	0x37ef: 0x000a,
+	// Block 0xe0, offset 0x3800
+	0x382a: 0x000a, 0x382b: 0x000a, 0x382c: 0x000a,
+	// Block 0xe1, offset 0x3840
+	0x3860: 0x000a, 0x3861: 0x000a, 0x3862: 0x000a, 0x3863: 0x000a,
+	0x3864: 0x000a, 0x3865: 0x000a,
+	// Block 0xe2, offset 0x3880
+	0x3880: 0x000a, 0x3881: 0x000a, 0x3882: 0x000a, 0x3883: 0x000a, 0x3884: 0x000a, 0x3885: 0x000a,
+	0x3886: 0x000a, 0x3887: 0x000a, 0x3888: 0x000a, 0x3889: 0x000a, 0x388a: 0x000a, 0x388b: 0x000a,
+	0x388c: 0x000a, 0x388d: 0x000a, 0x388e: 0x000a, 0x388f: 0x000a, 0x3890: 0x000a, 0x3891: 0x000a,
+	0x3892: 0x000a, 0x3893: 0x000a, 0x3894: 0x000a, 0x3895: 0x000a,
+	0x38a0: 0x000a, 0x38a1: 0x000a, 0x38a2: 0x000a, 0x38a3: 0x000a,
+	0x38a4: 0x000a, 0x38a5: 0x000a, 0x38a6: 0x000a, 0x38a7: 0x000a, 0x38a8: 0x000a, 0x38a9: 0x000a,
+	0x38aa: 0x000a, 0x38ab: 0x000a, 0x38ac: 0x000a,
+	0x38b0: 0x000a, 0x38b1: 0x000a, 0x38b2: 0x000a, 0x38b3: 0x000a, 0x38b4: 0x000a, 0x38b5: 0x000a,
+	0x38b6: 0x000a, 0x38b7: 0x000a, 0x38b8: 0x000a, 0x38b9: 0x000a, 0x38ba: 0x000a,
+	// Block 0xe3, offset 0x38c0
+	0x38c0: 0x000a, 0x38c1: 0x000a, 0x38c2: 0x000a, 0x38c3: 0x000a, 0x38c4: 0x000a, 0x38c5: 0x000a,
+	0x38c6: 0x000a, 0x38c7: 0x000a, 0x38c8: 0x000a, 0x38c9: 0x000a, 0x38ca: 0x000a, 0x38cb: 0x000a,
+	0x38cc: 0x000a, 0x38cd: 0x000a, 0x38ce: 0x000a, 0x38cf: 0x000a, 0x38d0: 0x000a, 0x38d1: 0x000a,
+	0x38d2: 0x000a, 0x38d3: 0x000a, 0x38d4: 0x000a, 0x38d5: 0x000a, 0x38d6: 0x000a, 0x38d7: 0x000a,
+	0x38d8: 0x000a,
+	0x38e0: 0x000a, 0x38e1: 0x000a, 0x38e2: 0x000a, 0x38e3: 0x000a,
+	0x38e4: 0x000a, 0x38e5: 0x000a, 0x38e6: 0x000a, 0x38e7: 0x000a, 0x38e8: 0x000a, 0x38e9: 0x000a,
+	0x38ea: 0x000a, 0x38eb: 0x000a,
+	// Block 0xe4, offset 0x3900
+	0x3900: 0x000a, 0x3901: 0x000a, 0x3902: 0x000a, 0x3903: 0x000a, 0x3904: 0x000a, 0x3905: 0x000a,
+	0x3906: 0x000a, 0x3907: 0x000a, 0x3908: 0x000a, 0x3909: 0x000a, 0x390a: 0x000a, 0x390b: 0x000a,
+	0x3910: 0x000a, 0x3911: 0x000a,
+	0x3912: 0x000a, 0x3913: 0x000a, 0x3914: 0x000a, 0x3915: 0x000a, 0x3916: 0x000a, 0x3917: 0x000a,
+	0x3918: 0x000a, 0x3919: 0x000a, 0x391a: 0x000a, 0x391b: 0x000a, 0x391c: 0x000a, 0x391d: 0x000a,
+	0x391e: 0x000a, 0x391f: 0x000a, 0x3920: 0x000a, 0x3921: 0x000a, 0x3922: 0x000a, 0x3923: 0x000a,
+	0x3924: 0x000a, 0x3925: 0x000a, 0x3926: 0x000a, 0x3927: 0x000a, 0x3928: 0x000a, 0x3929: 0x000a,
+	0x392a: 0x000a, 0x392b: 0x000a, 0x392c: 0x000a, 0x392d: 0x000a, 0x392e: 0x000a, 0x392f: 0x000a,
+	0x3930: 0x000a, 0x3931: 0x000a, 0x3932: 0x000a, 0x3933: 0x000a, 0x3934: 0x000a, 0x3935: 0x000a,
+	0x3936: 0x000a, 0x3937: 0x000a, 0x3938: 0x000a, 0x3939: 0x000a, 0x393a: 0x000a, 0x393b: 0x000a,
+	0x393c: 0x000a, 0x393d: 0x000a, 0x393e: 0x000a, 0x393f: 0x000a,
+	// Block 0xe5, offset 0x3940
+	0x3940: 0x000a, 0x3941: 0x000a, 0x3942: 0x000a, 0x3943: 0x000a, 0x3944: 0x000a, 0x3945: 0x000a,
+	0x3946: 0x000a, 0x3947: 0x000a,
+	0x3950: 0x000a, 0x3951: 0x000a,
+	0x3952: 0x000a, 0x3953: 0x000a, 0x3954: 0x000a, 0x3955: 0x000a, 0x3956: 0x000a, 0x3957: 0x000a,
+	0x3958: 0x000a, 0x3959: 0x000a,
+	0x3960: 0x000a, 0x3961: 0x000a, 0x3962: 0x000a, 0x3963: 0x000a,
+	0x3964: 0x000a, 0x3965: 0x000a, 0x3966: 0x000a, 0x3967: 0x000a, 0x3968: 0x000a, 0x3969: 0x000a,
+	0x396a: 0x000a, 0x396b: 0x000a, 0x396c: 0x000a, 0x396d: 0x000a, 0x396e: 0x000a, 0x396f: 0x000a,
+	0x3970: 0x000a, 0x3971: 0x000a, 0x3972: 0x000a, 0x3973: 0x000a, 0x3974: 0x000a, 0x3975: 0x000a,
+	0x3976: 0x000a, 0x3977: 0x000a, 0x3978: 0x000a, 0x3979: 0x000a, 0x397a: 0x000a, 0x397b: 0x000a,
+	0x397c: 0x000a, 0x397d: 0x000a, 0x397e: 0x000a, 0x397f: 0x000a,
+	// Block 0xe6, offset 0x3980
+	0x3980: 0x000a, 0x3981: 0x000a, 0x3982: 0x000a, 0x3983: 0x000a, 0x3984: 0x000a, 0x3985: 0x000a,
+	0x3986: 0x000a, 0x3987: 0x000a,
+	0x3990: 0x000a, 0x3991: 0x000a,
+	0x3992: 0x000a, 0x3993: 0x000a, 0x3994: 0x000a, 0x3995: 0x000a, 0x3996: 0x000a, 0x3997: 0x000a,
+	0x3998: 0x000a, 0x3999: 0x000a, 0x399a: 0x000a, 0x399b: 0x000a, 0x399c: 0x000a, 0x399d: 0x000a,
+	0x399e: 0x000a, 0x399f: 0x000a, 0x39a0: 0x000a, 0x39a1: 0x000a, 0x39a2: 0x000a, 0x39a3: 0x000a,
+	0x39a4: 0x000a, 0x39a5: 0x000a, 0x39a6: 0x000a, 0x39a7: 0x000a, 0x39a8: 0x000a, 0x39a9: 0x000a,
+	0x39aa: 0x000a, 0x39ab: 0x000a, 0x39ac: 0x000a, 0x39ad: 0x000a,
+	// Block 0xe7, offset 0x39c0
+	0x39c0: 0x000a, 0x39c1: 0x000a, 0x39c2: 0x000a, 0x39c3: 0x000a, 0x39c4: 0x000a, 0x39c5: 0x000a,
+	0x39c6: 0x000a, 0x39c7: 0x000a, 0x39c8: 0x000a, 0x39c9: 0x000a, 0x39ca: 0x000a, 0x39cb: 0x000a,
+	0x39cd: 0x000a, 0x39ce: 0x000a, 0x39cf: 0x000a, 0x39d0: 0x000a, 0x39d1: 0x000a,
+	0x39d2: 0x000a, 0x39d3: 0x000a, 0x39d4: 0x000a, 0x39d5: 0x000a, 0x39d6: 0x000a, 0x39d7: 0x000a,
+	0x39d8: 0x000a, 0x39d9: 0x000a, 0x39da: 0x000a, 0x39db: 0x000a, 0x39dc: 0x000a, 0x39dd: 0x000a,
+	0x39de: 0x000a, 0x39df: 0x000a, 0x39e0: 0x000a, 0x39e1: 0x000a, 0x39e2: 0x000a, 0x39e3: 0x000a,
+	0x39e4: 0x000a, 0x39e5: 0x000a, 0x39e6: 0x000a, 0x39e7: 0x000a, 0x39e8: 0x000a, 0x39e9: 0x000a,
+	0x39ea: 0x000a, 0x39eb: 0x000a, 0x39ec: 0x000a, 0x39ed: 0x000a, 0x39ee: 0x000a, 0x39ef: 0x000a,
+	0x39f0: 0x000a, 0x39f1: 0x000a, 0x39f2: 0x000a, 0x39f3: 0x000a, 0x39f4: 0x000a, 0x39f5: 0x000a,
+	0x39f6: 0x000a, 0x39f7: 0x000a, 0x39f8: 0x000a, 0x39f9: 0x000a, 0x39fa: 0x000a, 0x39fb: 0x000a,
+	0x39fc: 0x000a, 0x39fd: 0x000a, 0x39fe: 0x000a, 0x39ff: 0x000a,
+	// Block 0xe8, offset 0x3a00
+	0x3a00: 0x000a, 0x3a01: 0x000a, 0x3a02: 0x000a, 0x3a03: 0x000a, 0x3a04: 0x000a, 0x3a05: 0x000a,
+	0x3a06: 0x000a, 0x3a07: 0x000a, 0x3a08: 0x000a, 0x3a09: 0x000a, 0x3a0a: 0x000a, 0x3a0b: 0x000a,
+	0x3a0c: 0x000a, 0x3a0d: 0x000a, 0x3a0e: 0x000a, 0x3a0f: 0x000a, 0x3a10: 0x000a, 0x3a11: 0x000a,
+	0x3a12: 0x000a, 0x3a13: 0x000a, 0x3a14: 0x000a, 0x3a15: 0x000a, 0x3a16: 0x000a, 0x3a17: 0x000a,
+	0x3a18: 0x000a, 0x3a19: 0x000a, 0x3a1a: 0x000a, 0x3a1b: 0x000a, 0x3a1c: 0x000a, 0x3a1d: 0x000a,
+	0x3a1e: 0x000a, 0x3a1f: 0x000a, 0x3a20: 0x000a, 0x3a21: 0x000a, 0x3a22: 0x000a, 0x3a23: 0x000a,
+	0x3a24: 0x000a, 0x3a25: 0x000a, 0x3a26: 0x000a, 0x3a27: 0x000a, 0x3a28: 0x000a, 0x3a29: 0x000a,
+	0x3a2a: 0x000a, 0x3a2b: 0x000a, 0x3a2c: 0x000a, 0x3a2d: 0x000a, 0x3a2e: 0x000a, 0x3a2f: 0x000a,
+	0x3a30: 0x000a, 0x3a31: 0x000a, 0x3a33: 0x000a, 0x3a34: 0x000a, 0x3a35: 0x000a,
+	0x3a36: 0x000a, 0x3a3a: 0x000a, 0x3a3b: 0x000a,
+	0x3a3c: 0x000a, 0x3a3d: 0x000a, 0x3a3e: 0x000a, 0x3a3f: 0x000a,
+	// Block 0xe9, offset 0x3a40
+	0x3a40: 0x000a, 0x3a41: 0x000a, 0x3a42: 0x000a, 0x3a43: 0x000a, 0x3a44: 0x000a, 0x3a45: 0x000a,
+	0x3a46: 0x000a, 0x3a47: 0x000a, 0x3a48: 0x000a, 0x3a49: 0x000a, 0x3a4a: 0x000a, 0x3a4b: 0x000a,
+	0x3a4c: 0x000a, 0x3a4d: 0x000a, 0x3a4e: 0x000a, 0x3a4f: 0x000a, 0x3a50: 0x000a, 0x3a51: 0x000a,
+	0x3a52: 0x000a, 0x3a53: 0x000a, 0x3a54: 0x000a, 0x3a55: 0x000a, 0x3a56: 0x000a, 0x3a57: 0x000a,
+	0x3a58: 0x000a, 0x3a59: 0x000a, 0x3a5a: 0x000a, 0x3a5b: 0x000a, 0x3a5c: 0x000a, 0x3a5d: 0x000a,
+	0x3a5e: 0x000a, 0x3a5f: 0x000a, 0x3a60: 0x000a, 0x3a61: 0x000a, 0x3a62: 0x000a,
+	0x3a65: 0x000a, 0x3a66: 0x000a, 0x3a67: 0x000a, 0x3a68: 0x000a, 0x3a69: 0x000a,
+	0x3a6a: 0x000a, 0x3a6e: 0x000a, 0x3a6f: 0x000a,
+	0x3a70: 0x000a, 0x3a71: 0x000a, 0x3a72: 0x000a, 0x3a73: 0x000a, 0x3a74: 0x000a, 0x3a75: 0x000a,
+	0x3a76: 0x000a, 0x3a77: 0x000a, 0x3a78: 0x000a, 0x3a79: 0x000a, 0x3a7a: 0x000a, 0x3a7b: 0x000a,
+	0x3a7c: 0x000a, 0x3a7d: 0x000a, 0x3a7e: 0x000a, 0x3a7f: 0x000a,
+	// Block 0xea, offset 0x3a80
+	0x3a80: 0x000a, 0x3a81: 0x000a, 0x3a82: 0x000a, 0x3a83: 0x000a, 0x3a84: 0x000a, 0x3a85: 0x000a,
+	0x3a86: 0x000a, 0x3a87: 0x000a, 0x3a88: 0x000a, 0x3a89: 0x000a, 0x3a8a: 0x000a,
+	0x3a8d: 0x000a, 0x3a8e: 0x000a, 0x3a8f: 0x000a, 0x3a90: 0x000a, 0x3a91: 0x000a,
+	0x3a92: 0x000a, 0x3a93: 0x000a, 0x3a94: 0x000a, 0x3a95: 0x000a, 0x3a96: 0x000a, 0x3a97: 0x000a,
+	0x3a98: 0x000a, 0x3a99: 0x000a, 0x3a9a: 0x000a, 0x3a9b: 0x000a, 0x3a9c: 0x000a, 0x3a9d: 0x000a,
+	0x3a9e: 0x000a, 0x3a9f: 0x000a, 0x3aa0: 0x000a, 0x3aa1: 0x000a, 0x3aa2: 0x000a, 0x3aa3: 0x000a,
+	0x3aa4: 0x000a, 0x3aa5: 0x000a, 0x3aa6: 0x000a, 0x3aa7: 0x000a, 0x3aa8: 0x000a, 0x3aa9: 0x000a,
+	0x3aaa: 0x000a, 0x3aab: 0x000a, 0x3aac: 0x000a, 0x3aad: 0x000a, 0x3aae: 0x000a, 0x3aaf: 0x000a,
+	0x3ab0: 0x000a, 0x3ab1: 0x000a, 0x3ab2: 0x000a, 0x3ab3: 0x000a, 0x3ab4: 0x000a, 0x3ab5: 0x000a,
+	0x3ab6: 0x000a, 0x3ab7: 0x000a, 0x3ab8: 0x000a, 0x3ab9: 0x000a, 0x3aba: 0x000a, 0x3abb: 0x000a,
+	0x3abc: 0x000a, 0x3abd: 0x000a, 0x3abe: 0x000a, 0x3abf: 0x000a,
+	// Block 0xeb, offset 0x3ac0
+	0x3ac0: 0x000a, 0x3ac1: 0x000a, 0x3ac2: 0x000a, 0x3ac3: 0x000a, 0x3ac4: 0x000a, 0x3ac5: 0x000a,
+	0x3ac6: 0x000a, 0x3ac7: 0x000a, 0x3ac8: 0x000a, 0x3ac9: 0x000a, 0x3aca: 0x000a, 0x3acb: 0x000a,
+	0x3acc: 0x000a, 0x3acd: 0x000a, 0x3ace: 0x000a, 0x3acf: 0x000a, 0x3ad0: 0x000a, 0x3ad1: 0x000a,
+	0x3ad2: 0x000a, 0x3ad3: 0x000a,
+	0x3ae0: 0x000a, 0x3ae1: 0x000a, 0x3ae2: 0x000a, 0x3ae3: 0x000a,
+	0x3ae4: 0x000a, 0x3ae5: 0x000a, 0x3ae6: 0x000a, 0x3ae7: 0x000a, 0x3ae8: 0x000a, 0x3ae9: 0x000a,
+	0x3aea: 0x000a, 0x3aeb: 0x000a, 0x3aec: 0x000a, 0x3aed: 0x000a,
+	0x3af0: 0x000a, 0x3af1: 0x000a, 0x3af2: 0x000a, 0x3af3: 0x000a,
+	0x3af8: 0x000a, 0x3af9: 0x000a, 0x3afa: 0x000a,
+	// Block 0xec, offset 0x3b00
+	0x3b00: 0x000a, 0x3b01: 0x000a, 0x3b02: 0x000a,
+	0x3b10: 0x000a, 0x3b11: 0x000a,
+	0x3b12: 0x000a, 0x3b13: 0x000a, 0x3b14: 0x000a, 0x3b15: 0x000a,
+	// Block 0xed, offset 0x3b40
+	0x3b7e: 0x000b, 0x3b7f: 0x000b,
+	// Block 0xee, offset 0x3b80
+	0x3b80: 0x000b, 0x3b81: 0x000b, 0x3b82: 0x000b, 0x3b83: 0x000b, 0x3b84: 0x000b, 0x3b85: 0x000b,
+	0x3b86: 0x000b, 0x3b87: 0x000b, 0x3b88: 0x000b, 0x3b89: 0x000b, 0x3b8a: 0x000b, 0x3b8b: 0x000b,
+	0x3b8c: 0x000b, 0x3b8d: 0x000b, 0x3b8e: 0x000b, 0x3b8f: 0x000b, 0x3b90: 0x000b, 0x3b91: 0x000b,
+	0x3b92: 0x000b, 0x3b93: 0x000b, 0x3b94: 0x000b, 0x3b95: 0x000b, 0x3b96: 0x000b, 0x3b97: 0x000b,
+	0x3b98: 0x000b, 0x3b99: 0x000b, 0x3b9a: 0x000b, 0x3b9b: 0x000b, 0x3b9c: 0x000b, 0x3b9d: 0x000b,
+	0x3b9e: 0x000b, 0x3b9f: 0x000b, 0x3ba0: 0x000b, 0x3ba1: 0x000b, 0x3ba2: 0x000b, 0x3ba3: 0x000b,
+	0x3ba4: 0x000b, 0x3ba5: 0x000b, 0x3ba6: 0x000b, 0x3ba7: 0x000b, 0x3ba8: 0x000b, 0x3ba9: 0x000b,
+	0x3baa: 0x000b, 0x3bab: 0x000b, 0x3bac: 0x000b, 0x3bad: 0x000b, 0x3bae: 0x000b, 0x3baf: 0x000b,
+	0x3bb0: 0x000b, 0x3bb1: 0x000b, 0x3bb2: 0x000b, 0x3bb3: 0x000b, 0x3bb4: 0x000b, 0x3bb5: 0x000b,
+	0x3bb6: 0x000b, 0x3bb7: 0x000b, 0x3bb8: 0x000b, 0x3bb9: 0x000b, 0x3bba: 0x000b, 0x3bbb: 0x000b,
+	0x3bbc: 0x000b, 0x3bbd: 0x000b, 0x3bbe: 0x000b, 0x3bbf: 0x000b,
+	// Block 0xef, offset 0x3bc0
+	0x3bc0: 0x000c, 0x3bc1: 0x000c, 0x3bc2: 0x000c, 0x3bc3: 0x000c, 0x3bc4: 0x000c, 0x3bc5: 0x000c,
+	0x3bc6: 0x000c, 0x3bc7: 0x000c, 0x3bc8: 0x000c, 0x3bc9: 0x000c, 0x3bca: 0x000c, 0x3bcb: 0x000c,
+	0x3bcc: 0x000c, 0x3bcd: 0x000c, 0x3bce: 0x000c, 0x3bcf: 0x000c, 0x3bd0: 0x000c, 0x3bd1: 0x000c,
+	0x3bd2: 0x000c, 0x3bd3: 0x000c, 0x3bd4: 0x000c, 0x3bd5: 0x000c, 0x3bd6: 0x000c, 0x3bd7: 0x000c,
+	0x3bd8: 0x000c, 0x3bd9: 0x000c, 0x3bda: 0x000c, 0x3bdb: 0x000c, 0x3bdc: 0x000c, 0x3bdd: 0x000c,
+	0x3bde: 0x000c, 0x3bdf: 0x000c, 0x3be0: 0x000c, 0x3be1: 0x000c, 0x3be2: 0x000c, 0x3be3: 0x000c,
+	0x3be4: 0x000c, 0x3be5: 0x000c, 0x3be6: 0x000c, 0x3be7: 0x000c, 0x3be8: 0x000c, 0x3be9: 0x000c,
+	0x3bea: 0x000c, 0x3beb: 0x000c, 0x3bec: 0x000c, 0x3bed: 0x000c, 0x3bee: 0x000c, 0x3bef: 0x000c,
+	0x3bf0: 0x000b, 0x3bf1: 0x000b, 0x3bf2: 0x000b, 0x3bf3: 0x000b, 0x3bf4: 0x000b, 0x3bf5: 0x000b,
+	0x3bf6: 0x000b, 0x3bf7: 0x000b, 0x3bf8: 0x000b, 0x3bf9: 0x000b, 0x3bfa: 0x000b, 0x3bfb: 0x000b,
+	0x3bfc: 0x000b, 0x3bfd: 0x000b, 0x3bfe: 0x000b, 0x3bff: 0x000b,
+}
+
+// bidiIndex: 24 blocks, 1536 entries, 1536 bytes
+// Block 0 is the zero block.
+var bidiIndex = [1536]uint8{
+	// Block 0x0, offset 0x0
+	// Block 0x1, offset 0x40
+	// Block 0x2, offset 0x80
+	// Block 0x3, offset 0xc0
+	0xc2: 0x01, 0xc3: 0x02,
+	0xca: 0x03, 0xcb: 0x04, 0xcc: 0x05, 0xcd: 0x06, 0xce: 0x07, 0xcf: 0x08,
+	0xd2: 0x09, 0xd6: 0x0a, 0xd7: 0x0b,
+	0xd8: 0x0c, 0xd9: 0x0d, 0xda: 0x0e, 0xdb: 0x0f, 0xdc: 0x10, 0xdd: 0x11, 0xde: 0x12, 0xdf: 0x13,
+	0xe0: 0x02, 0xe1: 0x03, 0xe2: 0x04, 0xe3: 0x05, 0xe4: 0x06,
+	0xea: 0x07, 0xef: 0x08,
+	0xf0: 0x11, 0xf1: 0x12, 0xf2: 0x12, 0xf3: 0x14, 0xf4: 0x15,
+	// Block 0x4, offset 0x100
+	0x120: 0x14, 0x121: 0x15, 0x122: 0x16, 0x123: 0x17, 0x124: 0x18, 0x125: 0x19, 0x126: 0x1a, 0x127: 0x1b,
+	0x128: 0x1c, 0x129: 0x1d, 0x12a: 0x1c, 0x12b: 0x1e, 0x12c: 0x1f, 0x12d: 0x20, 0x12e: 0x21, 0x12f: 0x22,
+	0x130: 0x23, 0x131: 0x24, 0x132: 0x1a, 0x133: 0x25, 0x134: 0x26, 0x135: 0x27, 0x137: 0x28,
+	0x138: 0x29, 0x139: 0x2a, 0x13a: 0x2b, 0x13b: 0x2c, 0x13c: 0x2d, 0x13d: 0x2e, 0x13e: 0x2f, 0x13f: 0x30,
+	// Block 0x5, offset 0x140
+	0x140: 0x31, 0x141: 0x32, 0x142: 0x33,
+	0x14d: 0x34, 0x14e: 0x35,
+	0x150: 0x36,
+	0x15a: 0x37, 0x15c: 0x38, 0x15d: 0x39, 0x15e: 0x3a, 0x15f: 0x3b,
+	0x160: 0x3c, 0x162: 0x3d, 0x164: 0x3e, 0x165: 0x3f, 0x167: 0x40,
+	0x168: 0x41, 0x169: 0x42, 0x16a: 0x43, 0x16c: 0x44, 0x16d: 0x45, 0x16e: 0x46, 0x16f: 0x47,
+	0x170: 0x48, 0x173: 0x49, 0x177: 0x4a,
+	0x17e: 0x4b, 0x17f: 0x4c,
+	// Block 0x6, offset 0x180
+	0x180: 0x4d, 0x181: 0x4e, 0x182: 0x4f, 0x183: 0x50, 0x184: 0x51, 0x185: 0x52, 0x186: 0x53, 0x187: 0x54,
+	0x188: 0x55, 0x189: 0x54, 0x18a: 0x54, 0x18b: 0x54, 0x18c: 0x56, 0x18d: 0x57, 0x18e: 0x58, 0x18f: 0x54,
+	0x190: 0x59, 0x191: 0x5a, 0x192: 0x5b, 0x193: 0x5c, 0x194: 0x54, 0x195: 0x54, 0x196: 0x54, 0x197: 0x54,
+	0x198: 0x54, 0x199: 0x54, 0x19a: 0x5d, 0x19b: 0x54, 0x19c: 0x54, 0x19d: 0x5e, 0x19e: 0x54, 0x19f: 0x5f,
+	0x1a4: 0x54, 0x1a5: 0x54, 0x1a6: 0x60, 0x1a7: 0x61,
+	0x1a8: 0x54, 0x1a9: 0x54, 0x1aa: 0x54, 0x1ab: 0x54, 0x1ac: 0x54, 0x1ad: 0x62, 0x1ae: 0x63, 0x1af: 0x54,
+	0x1b3: 0x64, 0x1b5: 0x65, 0x1b7: 0x66,
+	0x1b8: 0x67, 0x1b9: 0x68, 0x1ba: 0x69, 0x1bb: 0x6a, 0x1bc: 0x54, 0x1bd: 0x54, 0x1be: 0x54, 0x1bf: 0x6b,
+	// Block 0x7, offset 0x1c0
+	0x1c0: 0x6c, 0x1c2: 0x6d, 0x1c3: 0x6e, 0x1c7: 0x6f,
+	0x1c8: 0x70, 0x1c9: 0x71, 0x1ca: 0x72, 0x1cb: 0x73, 0x1cd: 0x74, 0x1cf: 0x75,
+	// Block 0x8, offset 0x200
+	0x237: 0x54,
+	// Block 0x9, offset 0x240
+	0x252: 0x76, 0x253: 0x77,
+	0x258: 0x78, 0x259: 0x79, 0x25a: 0x7a, 0x25b: 0x7b, 0x25c: 0x7c, 0x25e: 0x7d,
+	0x260: 0x7e, 0x261: 0x7f, 0x263: 0x80, 0x264: 0x81, 0x265: 0x82, 0x266: 0x83, 0x267: 0x84,
+	0x268: 0x85, 0x269: 0x86, 0x26a: 0x87, 0x26b: 0x88, 0x26f: 0x89,
+	// Block 0xa, offset 0x280
+	0x2ac: 0x8a, 0x2ad: 0x8b, 0x2ae: 0x0e, 0x2af: 0x0e,
+	0x2b0: 0x0e, 0x2b1: 0x0e, 0x2b2: 0x0e, 0x2b3: 0x0e, 0x2b4: 0x8c, 0x2b5: 0x0e, 0x2b6: 0x0e, 0x2b7: 0x8d,
+	0x2b8: 0x8e, 0x2b9: 0x8f, 0x2ba: 0x0e, 0x2bb: 0x90, 0x2bc: 0x91, 0x2bd: 0x92, 0x2bf: 0x93,
+	// Block 0xb, offset 0x2c0
+	0x2c4: 0x94, 0x2c5: 0x54, 0x2c6: 0x95, 0x2c7: 0x96,
+	0x2cb: 0x97, 0x2cd: 0x98,
+	0x2e0: 0x99, 0x2e1: 0x99, 0x2e2: 0x99, 0x2e3: 0x99, 0x2e4: 0x9a, 0x2e5: 0x99, 0x2e6: 0x99, 0x2e7: 0x99,
+	0x2e8: 0x9b, 0x2e9: 0x99, 0x2ea: 0x99, 0x2eb: 0x9c, 0x2ec: 0x9d, 0x2ed: 0x99, 0x2ee: 0x99, 0x2ef: 0x99,
+	0x2f0: 0x99, 0x2f1: 0x99, 0x2f2: 0x99, 0x2f3: 0x99, 0x2f4: 0x9e, 0x2f5: 0x99, 0x2f6: 0x99, 0x2f7: 0x99,
+	0x2f8: 0x99, 0x2f9: 0x9f, 0x2fa: 0x99, 0x2fb: 0x99, 0x2fc: 0xa0, 0x2fd: 0xa1, 0x2fe: 0x99, 0x2ff: 0x99,
+	// Block 0xc, offset 0x300
+	0x300: 0xa2, 0x301: 0xa3, 0x302: 0xa4, 0x304: 0xa5, 0x305: 0xa6, 0x306: 0xa7, 0x307: 0xa8,
+	0x308: 0xa9, 0x30b: 0xaa, 0x30c: 0x26, 0x30d: 0xab,
+	0x310: 0xac, 0x311: 0xad, 0x312: 0xae, 0x313: 0xaf, 0x316: 0xb0, 0x317: 0xb1,
+	0x318: 0xb2, 0x319: 0xb3, 0x31a: 0xb4, 0x31c: 0xb5,
+	0x320: 0xb6, 0x327: 0xb7,
+	0x328: 0xb8, 0x329: 0xb9, 0x32a: 0xba,
+	0x330: 0xbb, 0x332: 0xbc, 0x334: 0xbd, 0x335: 0xbe, 0x336: 0xbf,
+	0x33b: 0xc0, 0x33f: 0xc1,
+	// Block 0xd, offset 0x340
+	0x36b: 0xc2, 0x36c: 0xc3,
+	0x37d: 0xc4, 0x37e: 0xc5, 0x37f: 0xc6,
+	// Block 0xe, offset 0x380
+	0x3b2: 0xc7,
+	// Block 0xf, offset 0x3c0
+	0x3c5: 0xc8, 0x3c6: 0xc9,
+	0x3c8: 0x54, 0x3c9: 0xca, 0x3cc: 0x54, 0x3cd: 0xcb,
+	0x3db: 0xcc, 0x3dc: 0xcd, 0x3dd: 0xce, 0x3de: 0xcf, 0x3df: 0xd0,
+	0x3e8: 0xd1, 0x3e9: 0xd2, 0x3ea: 0xd3,
+	// Block 0x10, offset 0x400
+	0x400: 0xd4, 0x404: 0xc3,
+	0x40b: 0xd5,
+	0x420: 0x99, 0x421: 0x99, 0x422: 0x99, 0x423: 0xd6, 0x424: 0x99, 0x425: 0xd7, 0x426: 0x99, 0x427: 0x99,
+	0x428: 0x99, 0x429: 0x99, 0x42a: 0x99, 0x42b: 0x99, 0x42c: 0x99, 0x42d: 0x99, 0x42e: 0x99, 0x42f: 0x99,
+	0x430: 0x99, 0x431: 0xa0, 0x432: 0x0e, 0x433: 0x99, 0x434: 0x0e, 0x435: 0xd8, 0x436: 0x99, 0x437: 0x99,
+	0x438: 0x0e, 0x439: 0x0e, 0x43a: 0x0e, 0x43b: 0xd9, 0x43c: 0x99, 0x43d: 0x99, 0x43e: 0x99, 0x43f: 0x99,
+	// Block 0x11, offset 0x440
+	0x440: 0xda, 0x441: 0x54, 0x442: 0xdb, 0x443: 0xdc, 0x444: 0xdd, 0x445: 0xde,
+	0x449: 0xdf, 0x44c: 0x54, 0x44d: 0x54, 0x44e: 0x54, 0x44f: 0x54,
+	0x450: 0x54, 0x451: 0x54, 0x452: 0x54, 0x453: 0x54, 0x454: 0x54, 0x455: 0x54, 0x456: 0x54, 0x457: 0x54,
+	0x458: 0x54, 0x459: 0x54, 0x45a: 0x54, 0x45b: 0xe0, 0x45c: 0x54, 0x45d: 0x6a, 0x45e: 0x54, 0x45f: 0xe1,
+	0x460: 0xe2, 0x461: 0xe3, 0x462: 0xe4, 0x464: 0xe5, 0x465: 0xe6, 0x466: 0xe7, 0x467: 0xe8,
+	0x468: 0x54, 0x469: 0xe9, 0x46a: 0xea,
+	0x47f: 0xeb,
+	// Block 0x12, offset 0x480
+	0x4bf: 0xeb,
+	// Block 0x13, offset 0x4c0
+	0x4d0: 0x09, 0x4d1: 0x0a, 0x4d6: 0x0b,
+	0x4db: 0x0c, 0x4dd: 0x0d, 0x4de: 0x0e, 0x4df: 0x0f,
+	0x4ef: 0x10,
+	0x4ff: 0x10,
+	// Block 0x14, offset 0x500
+	0x50f: 0x10,
+	0x51f: 0x10,
+	0x52f: 0x10,
+	0x53f: 0x10,
+	// Block 0x15, offset 0x540
+	0x540: 0xec, 0x541: 0xec, 0x542: 0xec, 0x543: 0xec, 0x544: 0x05, 0x545: 0x05, 0x546: 0x05, 0x547: 0xed,
+	0x548: 0xec, 0x549: 0xec, 0x54a: 0xec, 0x54b: 0xec, 0x54c: 0xec, 0x54d: 0xec, 0x54e: 0xec, 0x54f: 0xec,
+	0x550: 0xec, 0x551: 0xec, 0x552: 0xec, 0x553: 0xec, 0x554: 0xec, 0x555: 0xec, 0x556: 0xec, 0x557: 0xec,
+	0x558: 0xec, 0x559: 0xec, 0x55a: 0xec, 0x55b: 0xec, 0x55c: 0xec, 0x55d: 0xec, 0x55e: 0xec, 0x55f: 0xec,
+	0x560: 0xec, 0x561: 0xec, 0x562: 0xec, 0x563: 0xec, 0x564: 0xec, 0x565: 0xec, 0x566: 0xec, 0x567: 0xec,
+	0x568: 0xec, 0x569: 0xec, 0x56a: 0xec, 0x56b: 0xec, 0x56c: 0xec, 0x56d: 0xec, 0x56e: 0xec, 0x56f: 0xec,
+	0x570: 0xec, 0x571: 0xec, 0x572: 0xec, 0x573: 0xec, 0x574: 0xec, 0x575: 0xec, 0x576: 0xec, 0x577: 0xec,
+	0x578: 0xec, 0x579: 0xec, 0x57a: 0xec, 0x57b: 0xec, 0x57c: 0xec, 0x57d: 0xec, 0x57e: 0xec, 0x57f: 0xec,
+	// Block 0x16, offset 0x580
+	0x58f: 0x10,
+	0x59f: 0x10,
+	0x5a0: 0x13,
+	0x5af: 0x10,
+	0x5bf: 0x10,
+	// Block 0x17, offset 0x5c0
+	0x5cf: 0x10,
+}
+
+// Total table size 16952 bytes (16KiB); checksum: F50EF68C
diff --git a/libgo/go/golang.org/x/text/unicode/norm/tables11.0.0.go b/libgo/go/golang.org/x/text/unicode/norm/tables11.0.0.go
index 7297cce..2c58f09 100644
--- a/libgo/go/golang.org/x/text/unicode/norm/tables11.0.0.go
+++ b/libgo/go/golang.org/x/text/unicode/norm/tables11.0.0.go
@@ -1,6 +1,6 @@
 // Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
 
-// +build go1.13
+// +build go1.13,!go1.14
 
 package norm
 
diff --git a/libgo/go/golang.org/x/text/unicode/norm/tables12.0.0.go b/libgo/go/golang.org/x/text/unicode/norm/tables12.0.0.go
new file mode 100644
index 0000000..10f5202
--- /dev/null
+++ b/libgo/go/golang.org/x/text/unicode/norm/tables12.0.0.go
@@ -0,0 +1,7710 @@
+// Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
+
+// +build go1.14
+
+package norm
+
+import "sync"
+
+const (
+	// Version is the Unicode edition from which the tables are derived.
+	Version = "12.0.0"
+
+	// MaxTransformChunkSize indicates the maximum number of bytes that Transform
+	// may need to write atomically for any Form. Making a destination buffer at
+	// least this size ensures that Transform can always make progress and that
+	// the user does not need to grow the buffer on an ErrShortDst.
+	MaxTransformChunkSize = 35 + maxNonStarters*4
+)
+
+var ccc = [55]uint8{
+	0, 1, 7, 8, 9, 10, 11, 12,
+	13, 14, 15, 16, 17, 18, 19, 20,
+	21, 22, 23, 24, 25, 26, 27, 28,
+	29, 30, 31, 32, 33, 34, 35, 36,
+	84, 91, 103, 107, 118, 122, 129, 130,
+	132, 202, 214, 216, 218, 220, 222, 224,
+	226, 228, 230, 232, 233, 234, 240,
+}
+
+const (
+	firstMulti            = 0x186D
+	firstCCC              = 0x2CA1
+	endMulti              = 0x2F63
+	firstLeadingCCC       = 0x49B1
+	firstCCCZeroExcept    = 0x4A7B
+	firstStarterWithNLead = 0x4AA2
+	lastDecomp            = 0x4AA4
+	maxDecomp             = 0x8000
+)
+
+// decomps: 19108 bytes
+var decomps = [...]byte{
+	// Bytes 0 - 3f
+	0x00, 0x41, 0x20, 0x41, 0x21, 0x41, 0x22, 0x41,
+	0x23, 0x41, 0x24, 0x41, 0x25, 0x41, 0x26, 0x41,
+	0x27, 0x41, 0x28, 0x41, 0x29, 0x41, 0x2A, 0x41,
+	0x2B, 0x41, 0x2C, 0x41, 0x2D, 0x41, 0x2E, 0x41,
+	0x2F, 0x41, 0x30, 0x41, 0x31, 0x41, 0x32, 0x41,
+	0x33, 0x41, 0x34, 0x41, 0x35, 0x41, 0x36, 0x41,
+	0x37, 0x41, 0x38, 0x41, 0x39, 0x41, 0x3A, 0x41,
+	0x3B, 0x41, 0x3C, 0x41, 0x3D, 0x41, 0x3E, 0x41,
+	// Bytes 40 - 7f
+	0x3F, 0x41, 0x40, 0x41, 0x41, 0x41, 0x42, 0x41,
+	0x43, 0x41, 0x44, 0x41, 0x45, 0x41, 0x46, 0x41,
+	0x47, 0x41, 0x48, 0x41, 0x49, 0x41, 0x4A, 0x41,
+	0x4B, 0x41, 0x4C, 0x41, 0x4D, 0x41, 0x4E, 0x41,
+	0x4F, 0x41, 0x50, 0x41, 0x51, 0x41, 0x52, 0x41,
+	0x53, 0x41, 0x54, 0x41, 0x55, 0x41, 0x56, 0x41,
+	0x57, 0x41, 0x58, 0x41, 0x59, 0x41, 0x5A, 0x41,
+	0x5B, 0x41, 0x5C, 0x41, 0x5D, 0x41, 0x5E, 0x41,
+	// Bytes 80 - bf
+	0x5F, 0x41, 0x60, 0x41, 0x61, 0x41, 0x62, 0x41,
+	0x63, 0x41, 0x64, 0x41, 0x65, 0x41, 0x66, 0x41,
+	0x67, 0x41, 0x68, 0x41, 0x69, 0x41, 0x6A, 0x41,
+	0x6B, 0x41, 0x6C, 0x41, 0x6D, 0x41, 0x6E, 0x41,
+	0x6F, 0x41, 0x70, 0x41, 0x71, 0x41, 0x72, 0x41,
+	0x73, 0x41, 0x74, 0x41, 0x75, 0x41, 0x76, 0x41,
+	0x77, 0x41, 0x78, 0x41, 0x79, 0x41, 0x7A, 0x41,
+	0x7B, 0x41, 0x7C, 0x41, 0x7D, 0x41, 0x7E, 0x42,
+	// Bytes c0 - ff
+	0xC2, 0xA2, 0x42, 0xC2, 0xA3, 0x42, 0xC2, 0xA5,
+	0x42, 0xC2, 0xA6, 0x42, 0xC2, 0xAC, 0x42, 0xC2,
+	0xB7, 0x42, 0xC3, 0x86, 0x42, 0xC3, 0xB0, 0x42,
+	0xC4, 0xA6, 0x42, 0xC4, 0xA7, 0x42, 0xC4, 0xB1,
+	0x42, 0xC5, 0x8B, 0x42, 0xC5, 0x93, 0x42, 0xC6,
+	0x8E, 0x42, 0xC6, 0x90, 0x42, 0xC6, 0xAB, 0x42,
+	0xC8, 0xA2, 0x42, 0xC8, 0xB7, 0x42, 0xC9, 0x90,
+	0x42, 0xC9, 0x91, 0x42, 0xC9, 0x92, 0x42, 0xC9,
+	// Bytes 100 - 13f
+	0x94, 0x42, 0xC9, 0x95, 0x42, 0xC9, 0x99, 0x42,
+	0xC9, 0x9B, 0x42, 0xC9, 0x9C, 0x42, 0xC9, 0x9F,
+	0x42, 0xC9, 0xA1, 0x42, 0xC9, 0xA3, 0x42, 0xC9,
+	0xA5, 0x42, 0xC9, 0xA6, 0x42, 0xC9, 0xA8, 0x42,
+	0xC9, 0xA9, 0x42, 0xC9, 0xAA, 0x42, 0xC9, 0xAB,
+	0x42, 0xC9, 0xAD, 0x42, 0xC9, 0xAF, 0x42, 0xC9,
+	0xB0, 0x42, 0xC9, 0xB1, 0x42, 0xC9, 0xB2, 0x42,
+	0xC9, 0xB3, 0x42, 0xC9, 0xB4, 0x42, 0xC9, 0xB5,
+	// Bytes 140 - 17f
+	0x42, 0xC9, 0xB8, 0x42, 0xC9, 0xB9, 0x42, 0xC9,
+	0xBB, 0x42, 0xCA, 0x81, 0x42, 0xCA, 0x82, 0x42,
+	0xCA, 0x83, 0x42, 0xCA, 0x89, 0x42, 0xCA, 0x8A,
+	0x42, 0xCA, 0x8B, 0x42, 0xCA, 0x8C, 0x42, 0xCA,
+	0x90, 0x42, 0xCA, 0x91, 0x42, 0xCA, 0x92, 0x42,
+	0xCA, 0x95, 0x42, 0xCA, 0x9D, 0x42, 0xCA, 0x9F,
+	0x42, 0xCA, 0xB9, 0x42, 0xCE, 0x91, 0x42, 0xCE,
+	0x92, 0x42, 0xCE, 0x93, 0x42, 0xCE, 0x94, 0x42,
+	// Bytes 180 - 1bf
+	0xCE, 0x95, 0x42, 0xCE, 0x96, 0x42, 0xCE, 0x97,
+	0x42, 0xCE, 0x98, 0x42, 0xCE, 0x99, 0x42, 0xCE,
+	0x9A, 0x42, 0xCE, 0x9B, 0x42, 0xCE, 0x9C, 0x42,
+	0xCE, 0x9D, 0x42, 0xCE, 0x9E, 0x42, 0xCE, 0x9F,
+	0x42, 0xCE, 0xA0, 0x42, 0xCE, 0xA1, 0x42, 0xCE,
+	0xA3, 0x42, 0xCE, 0xA4, 0x42, 0xCE, 0xA5, 0x42,
+	0xCE, 0xA6, 0x42, 0xCE, 0xA7, 0x42, 0xCE, 0xA8,
+	0x42, 0xCE, 0xA9, 0x42, 0xCE, 0xB1, 0x42, 0xCE,
+	// Bytes 1c0 - 1ff
+	0xB2, 0x42, 0xCE, 0xB3, 0x42, 0xCE, 0xB4, 0x42,
+	0xCE, 0xB5, 0x42, 0xCE, 0xB6, 0x42, 0xCE, 0xB7,
+	0x42, 0xCE, 0xB8, 0x42, 0xCE, 0xB9, 0x42, 0xCE,
+	0xBA, 0x42, 0xCE, 0xBB, 0x42, 0xCE, 0xBC, 0x42,
+	0xCE, 0xBD, 0x42, 0xCE, 0xBE, 0x42, 0xCE, 0xBF,
+	0x42, 0xCF, 0x80, 0x42, 0xCF, 0x81, 0x42, 0xCF,
+	0x82, 0x42, 0xCF, 0x83, 0x42, 0xCF, 0x84, 0x42,
+	0xCF, 0x85, 0x42, 0xCF, 0x86, 0x42, 0xCF, 0x87,
+	// Bytes 200 - 23f
+	0x42, 0xCF, 0x88, 0x42, 0xCF, 0x89, 0x42, 0xCF,
+	0x9C, 0x42, 0xCF, 0x9D, 0x42, 0xD0, 0xBD, 0x42,
+	0xD1, 0x8A, 0x42, 0xD1, 0x8C, 0x42, 0xD7, 0x90,
+	0x42, 0xD7, 0x91, 0x42, 0xD7, 0x92, 0x42, 0xD7,
+	0x93, 0x42, 0xD7, 0x94, 0x42, 0xD7, 0x9B, 0x42,
+	0xD7, 0x9C, 0x42, 0xD7, 0x9D, 0x42, 0xD7, 0xA2,
+	0x42, 0xD7, 0xA8, 0x42, 0xD7, 0xAA, 0x42, 0xD8,
+	0xA1, 0x42, 0xD8, 0xA7, 0x42, 0xD8, 0xA8, 0x42,
+	// Bytes 240 - 27f
+	0xD8, 0xA9, 0x42, 0xD8, 0xAA, 0x42, 0xD8, 0xAB,
+	0x42, 0xD8, 0xAC, 0x42, 0xD8, 0xAD, 0x42, 0xD8,
+	0xAE, 0x42, 0xD8, 0xAF, 0x42, 0xD8, 0xB0, 0x42,
+	0xD8, 0xB1, 0x42, 0xD8, 0xB2, 0x42, 0xD8, 0xB3,
+	0x42, 0xD8, 0xB4, 0x42, 0xD8, 0xB5, 0x42, 0xD8,
+	0xB6, 0x42, 0xD8, 0xB7, 0x42, 0xD8, 0xB8, 0x42,
+	0xD8, 0xB9, 0x42, 0xD8, 0xBA, 0x42, 0xD9, 0x81,
+	0x42, 0xD9, 0x82, 0x42, 0xD9, 0x83, 0x42, 0xD9,
+	// Bytes 280 - 2bf
+	0x84, 0x42, 0xD9, 0x85, 0x42, 0xD9, 0x86, 0x42,
+	0xD9, 0x87, 0x42, 0xD9, 0x88, 0x42, 0xD9, 0x89,
+	0x42, 0xD9, 0x8A, 0x42, 0xD9, 0xAE, 0x42, 0xD9,
+	0xAF, 0x42, 0xD9, 0xB1, 0x42, 0xD9, 0xB9, 0x42,
+	0xD9, 0xBA, 0x42, 0xD9, 0xBB, 0x42, 0xD9, 0xBE,
+	0x42, 0xD9, 0xBF, 0x42, 0xDA, 0x80, 0x42, 0xDA,
+	0x83, 0x42, 0xDA, 0x84, 0x42, 0xDA, 0x86, 0x42,
+	0xDA, 0x87, 0x42, 0xDA, 0x88, 0x42, 0xDA, 0x8C,
+	// Bytes 2c0 - 2ff
+	0x42, 0xDA, 0x8D, 0x42, 0xDA, 0x8E, 0x42, 0xDA,
+	0x91, 0x42, 0xDA, 0x98, 0x42, 0xDA, 0xA1, 0x42,
+	0xDA, 0xA4, 0x42, 0xDA, 0xA6, 0x42, 0xDA, 0xA9,
+	0x42, 0xDA, 0xAD, 0x42, 0xDA, 0xAF, 0x42, 0xDA,
+	0xB1, 0x42, 0xDA, 0xB3, 0x42, 0xDA, 0xBA, 0x42,
+	0xDA, 0xBB, 0x42, 0xDA, 0xBE, 0x42, 0xDB, 0x81,
+	0x42, 0xDB, 0x85, 0x42, 0xDB, 0x86, 0x42, 0xDB,
+	0x87, 0x42, 0xDB, 0x88, 0x42, 0xDB, 0x89, 0x42,
+	// Bytes 300 - 33f
+	0xDB, 0x8B, 0x42, 0xDB, 0x8C, 0x42, 0xDB, 0x90,
+	0x42, 0xDB, 0x92, 0x43, 0xE0, 0xBC, 0x8B, 0x43,
+	0xE1, 0x83, 0x9C, 0x43, 0xE1, 0x84, 0x80, 0x43,
+	0xE1, 0x84, 0x81, 0x43, 0xE1, 0x84, 0x82, 0x43,
+	0xE1, 0x84, 0x83, 0x43, 0xE1, 0x84, 0x84, 0x43,
+	0xE1, 0x84, 0x85, 0x43, 0xE1, 0x84, 0x86, 0x43,
+	0xE1, 0x84, 0x87, 0x43, 0xE1, 0x84, 0x88, 0x43,
+	0xE1, 0x84, 0x89, 0x43, 0xE1, 0x84, 0x8A, 0x43,
+	// Bytes 340 - 37f
+	0xE1, 0x84, 0x8B, 0x43, 0xE1, 0x84, 0x8C, 0x43,
+	0xE1, 0x84, 0x8D, 0x43, 0xE1, 0x84, 0x8E, 0x43,
+	0xE1, 0x84, 0x8F, 0x43, 0xE1, 0x84, 0x90, 0x43,
+	0xE1, 0x84, 0x91, 0x43, 0xE1, 0x84, 0x92, 0x43,
+	0xE1, 0x84, 0x94, 0x43, 0xE1, 0x84, 0x95, 0x43,
+	0xE1, 0x84, 0x9A, 0x43, 0xE1, 0x84, 0x9C, 0x43,
+	0xE1, 0x84, 0x9D, 0x43, 0xE1, 0x84, 0x9E, 0x43,
+	0xE1, 0x84, 0xA0, 0x43, 0xE1, 0x84, 0xA1, 0x43,
+	// Bytes 380 - 3bf
+	0xE1, 0x84, 0xA2, 0x43, 0xE1, 0x84, 0xA3, 0x43,
+	0xE1, 0x84, 0xA7, 0x43, 0xE1, 0x84, 0xA9, 0x43,
+	0xE1, 0x84, 0xAB, 0x43, 0xE1, 0x84, 0xAC, 0x43,
+	0xE1, 0x84, 0xAD, 0x43, 0xE1, 0x84, 0xAE, 0x43,
+	0xE1, 0x84, 0xAF, 0x43, 0xE1, 0x84, 0xB2, 0x43,
+	0xE1, 0x84, 0xB6, 0x43, 0xE1, 0x85, 0x80, 0x43,
+	0xE1, 0x85, 0x87, 0x43, 0xE1, 0x85, 0x8C, 0x43,
+	0xE1, 0x85, 0x97, 0x43, 0xE1, 0x85, 0x98, 0x43,
+	// Bytes 3c0 - 3ff
+	0xE1, 0x85, 0x99, 0x43, 0xE1, 0x85, 0xA0, 0x43,
+	0xE1, 0x86, 0x84, 0x43, 0xE1, 0x86, 0x85, 0x43,
+	0xE1, 0x86, 0x88, 0x43, 0xE1, 0x86, 0x91, 0x43,
+	0xE1, 0x86, 0x92, 0x43, 0xE1, 0x86, 0x94, 0x43,
+	0xE1, 0x86, 0x9E, 0x43, 0xE1, 0x86, 0xA1, 0x43,
+	0xE1, 0x87, 0x87, 0x43, 0xE1, 0x87, 0x88, 0x43,
+	0xE1, 0x87, 0x8C, 0x43, 0xE1, 0x87, 0x8E, 0x43,
+	0xE1, 0x87, 0x93, 0x43, 0xE1, 0x87, 0x97, 0x43,
+	// Bytes 400 - 43f
+	0xE1, 0x87, 0x99, 0x43, 0xE1, 0x87, 0x9D, 0x43,
+	0xE1, 0x87, 0x9F, 0x43, 0xE1, 0x87, 0xB1, 0x43,
+	0xE1, 0x87, 0xB2, 0x43, 0xE1, 0xB4, 0x82, 0x43,
+	0xE1, 0xB4, 0x96, 0x43, 0xE1, 0xB4, 0x97, 0x43,
+	0xE1, 0xB4, 0x9C, 0x43, 0xE1, 0xB4, 0x9D, 0x43,
+	0xE1, 0xB4, 0xA5, 0x43, 0xE1, 0xB5, 0xBB, 0x43,
+	0xE1, 0xB6, 0x85, 0x43, 0xE2, 0x80, 0x82, 0x43,
+	0xE2, 0x80, 0x83, 0x43, 0xE2, 0x80, 0x90, 0x43,
+	// Bytes 440 - 47f
+	0xE2, 0x80, 0x93, 0x43, 0xE2, 0x80, 0x94, 0x43,
+	0xE2, 0x82, 0xA9, 0x43, 0xE2, 0x86, 0x90, 0x43,
+	0xE2, 0x86, 0x91, 0x43, 0xE2, 0x86, 0x92, 0x43,
+	0xE2, 0x86, 0x93, 0x43, 0xE2, 0x88, 0x82, 0x43,
+	0xE2, 0x88, 0x87, 0x43, 0xE2, 0x88, 0x91, 0x43,
+	0xE2, 0x88, 0x92, 0x43, 0xE2, 0x94, 0x82, 0x43,
+	0xE2, 0x96, 0xA0, 0x43, 0xE2, 0x97, 0x8B, 0x43,
+	0xE2, 0xA6, 0x85, 0x43, 0xE2, 0xA6, 0x86, 0x43,
+	// Bytes 480 - 4bf
+	0xE2, 0xB5, 0xA1, 0x43, 0xE3, 0x80, 0x81, 0x43,
+	0xE3, 0x80, 0x82, 0x43, 0xE3, 0x80, 0x88, 0x43,
+	0xE3, 0x80, 0x89, 0x43, 0xE3, 0x80, 0x8A, 0x43,
+	0xE3, 0x80, 0x8B, 0x43, 0xE3, 0x80, 0x8C, 0x43,
+	0xE3, 0x80, 0x8D, 0x43, 0xE3, 0x80, 0x8E, 0x43,
+	0xE3, 0x80, 0x8F, 0x43, 0xE3, 0x80, 0x90, 0x43,
+	0xE3, 0x80, 0x91, 0x43, 0xE3, 0x80, 0x92, 0x43,
+	0xE3, 0x80, 0x94, 0x43, 0xE3, 0x80, 0x95, 0x43,
+	// Bytes 4c0 - 4ff
+	0xE3, 0x80, 0x96, 0x43, 0xE3, 0x80, 0x97, 0x43,
+	0xE3, 0x82, 0xA1, 0x43, 0xE3, 0x82, 0xA2, 0x43,
+	0xE3, 0x82, 0xA3, 0x43, 0xE3, 0x82, 0xA4, 0x43,
+	0xE3, 0x82, 0xA5, 0x43, 0xE3, 0x82, 0xA6, 0x43,
+	0xE3, 0x82, 0xA7, 0x43, 0xE3, 0x82, 0xA8, 0x43,
+	0xE3, 0x82, 0xA9, 0x43, 0xE3, 0x82, 0xAA, 0x43,
+	0xE3, 0x82, 0xAB, 0x43, 0xE3, 0x82, 0xAD, 0x43,
+	0xE3, 0x82, 0xAF, 0x43, 0xE3, 0x82, 0xB1, 0x43,
+	// Bytes 500 - 53f
+	0xE3, 0x82, 0xB3, 0x43, 0xE3, 0x82, 0xB5, 0x43,
+	0xE3, 0x82, 0xB7, 0x43, 0xE3, 0x82, 0xB9, 0x43,
+	0xE3, 0x82, 0xBB, 0x43, 0xE3, 0x82, 0xBD, 0x43,
+	0xE3, 0x82, 0xBF, 0x43, 0xE3, 0x83, 0x81, 0x43,
+	0xE3, 0x83, 0x83, 0x43, 0xE3, 0x83, 0x84, 0x43,
+	0xE3, 0x83, 0x86, 0x43, 0xE3, 0x83, 0x88, 0x43,
+	0xE3, 0x83, 0x8A, 0x43, 0xE3, 0x83, 0x8B, 0x43,
+	0xE3, 0x83, 0x8C, 0x43, 0xE3, 0x83, 0x8D, 0x43,
+	// Bytes 540 - 57f
+	0xE3, 0x83, 0x8E, 0x43, 0xE3, 0x83, 0x8F, 0x43,
+	0xE3, 0x83, 0x92, 0x43, 0xE3, 0x83, 0x95, 0x43,
+	0xE3, 0x83, 0x98, 0x43, 0xE3, 0x83, 0x9B, 0x43,
+	0xE3, 0x83, 0x9E, 0x43, 0xE3, 0x83, 0x9F, 0x43,
+	0xE3, 0x83, 0xA0, 0x43, 0xE3, 0x83, 0xA1, 0x43,
+	0xE3, 0x83, 0xA2, 0x43, 0xE3, 0x83, 0xA3, 0x43,
+	0xE3, 0x83, 0xA4, 0x43, 0xE3, 0x83, 0xA5, 0x43,
+	0xE3, 0x83, 0xA6, 0x43, 0xE3, 0x83, 0xA7, 0x43,
+	// Bytes 580 - 5bf
+	0xE3, 0x83, 0xA8, 0x43, 0xE3, 0x83, 0xA9, 0x43,
+	0xE3, 0x83, 0xAA, 0x43, 0xE3, 0x83, 0xAB, 0x43,
+	0xE3, 0x83, 0xAC, 0x43, 0xE3, 0x83, 0xAD, 0x43,
+	0xE3, 0x83, 0xAF, 0x43, 0xE3, 0x83, 0xB0, 0x43,
+	0xE3, 0x83, 0xB1, 0x43, 0xE3, 0x83, 0xB2, 0x43,
+	0xE3, 0x83, 0xB3, 0x43, 0xE3, 0x83, 0xBB, 0x43,
+	0xE3, 0x83, 0xBC, 0x43, 0xE3, 0x92, 0x9E, 0x43,
+	0xE3, 0x92, 0xB9, 0x43, 0xE3, 0x92, 0xBB, 0x43,
+	// Bytes 5c0 - 5ff
+	0xE3, 0x93, 0x9F, 0x43, 0xE3, 0x94, 0x95, 0x43,
+	0xE3, 0x9B, 0xAE, 0x43, 0xE3, 0x9B, 0xBC, 0x43,
+	0xE3, 0x9E, 0x81, 0x43, 0xE3, 0xA0, 0xAF, 0x43,
+	0xE3, 0xA1, 0xA2, 0x43, 0xE3, 0xA1, 0xBC, 0x43,
+	0xE3, 0xA3, 0x87, 0x43, 0xE3, 0xA3, 0xA3, 0x43,
+	0xE3, 0xA4, 0x9C, 0x43, 0xE3, 0xA4, 0xBA, 0x43,
+	0xE3, 0xA8, 0xAE, 0x43, 0xE3, 0xA9, 0xAC, 0x43,
+	0xE3, 0xAB, 0xA4, 0x43, 0xE3, 0xAC, 0x88, 0x43,
+	// Bytes 600 - 63f
+	0xE3, 0xAC, 0x99, 0x43, 0xE3, 0xAD, 0x89, 0x43,
+	0xE3, 0xAE, 0x9D, 0x43, 0xE3, 0xB0, 0x98, 0x43,
+	0xE3, 0xB1, 0x8E, 0x43, 0xE3, 0xB4, 0xB3, 0x43,
+	0xE3, 0xB6, 0x96, 0x43, 0xE3, 0xBA, 0xAC, 0x43,
+	0xE3, 0xBA, 0xB8, 0x43, 0xE3, 0xBC, 0x9B, 0x43,
+	0xE3, 0xBF, 0xBC, 0x43, 0xE4, 0x80, 0x88, 0x43,
+	0xE4, 0x80, 0x98, 0x43, 0xE4, 0x80, 0xB9, 0x43,
+	0xE4, 0x81, 0x86, 0x43, 0xE4, 0x82, 0x96, 0x43,
+	// Bytes 640 - 67f
+	0xE4, 0x83, 0xA3, 0x43, 0xE4, 0x84, 0xAF, 0x43,
+	0xE4, 0x88, 0x82, 0x43, 0xE4, 0x88, 0xA7, 0x43,
+	0xE4, 0x8A, 0xA0, 0x43, 0xE4, 0x8C, 0x81, 0x43,
+	0xE4, 0x8C, 0xB4, 0x43, 0xE4, 0x8D, 0x99, 0x43,
+	0xE4, 0x8F, 0x95, 0x43, 0xE4, 0x8F, 0x99, 0x43,
+	0xE4, 0x90, 0x8B, 0x43, 0xE4, 0x91, 0xAB, 0x43,
+	0xE4, 0x94, 0xAB, 0x43, 0xE4, 0x95, 0x9D, 0x43,
+	0xE4, 0x95, 0xA1, 0x43, 0xE4, 0x95, 0xAB, 0x43,
+	// Bytes 680 - 6bf
+	0xE4, 0x97, 0x97, 0x43, 0xE4, 0x97, 0xB9, 0x43,
+	0xE4, 0x98, 0xB5, 0x43, 0xE4, 0x9A, 0xBE, 0x43,
+	0xE4, 0x9B, 0x87, 0x43, 0xE4, 0xA6, 0x95, 0x43,
+	0xE4, 0xA7, 0xA6, 0x43, 0xE4, 0xA9, 0xAE, 0x43,
+	0xE4, 0xA9, 0xB6, 0x43, 0xE4, 0xAA, 0xB2, 0x43,
+	0xE4, 0xAC, 0xB3, 0x43, 0xE4, 0xAF, 0x8E, 0x43,
+	0xE4, 0xB3, 0x8E, 0x43, 0xE4, 0xB3, 0xAD, 0x43,
+	0xE4, 0xB3, 0xB8, 0x43, 0xE4, 0xB5, 0x96, 0x43,
+	// Bytes 6c0 - 6ff
+	0xE4, 0xB8, 0x80, 0x43, 0xE4, 0xB8, 0x81, 0x43,
+	0xE4, 0xB8, 0x83, 0x43, 0xE4, 0xB8, 0x89, 0x43,
+	0xE4, 0xB8, 0x8A, 0x43, 0xE4, 0xB8, 0x8B, 0x43,
+	0xE4, 0xB8, 0x8D, 0x43, 0xE4, 0xB8, 0x99, 0x43,
+	0xE4, 0xB8, 0xA6, 0x43, 0xE4, 0xB8, 0xA8, 0x43,
+	0xE4, 0xB8, 0xAD, 0x43, 0xE4, 0xB8, 0xB2, 0x43,
+	0xE4, 0xB8, 0xB6, 0x43, 0xE4, 0xB8, 0xB8, 0x43,
+	0xE4, 0xB8, 0xB9, 0x43, 0xE4, 0xB8, 0xBD, 0x43,
+	// Bytes 700 - 73f
+	0xE4, 0xB8, 0xBF, 0x43, 0xE4, 0xB9, 0x81, 0x43,
+	0xE4, 0xB9, 0x99, 0x43, 0xE4, 0xB9, 0x9D, 0x43,
+	0xE4, 0xBA, 0x82, 0x43, 0xE4, 0xBA, 0x85, 0x43,
+	0xE4, 0xBA, 0x86, 0x43, 0xE4, 0xBA, 0x8C, 0x43,
+	0xE4, 0xBA, 0x94, 0x43, 0xE4, 0xBA, 0xA0, 0x43,
+	0xE4, 0xBA, 0xA4, 0x43, 0xE4, 0xBA, 0xAE, 0x43,
+	0xE4, 0xBA, 0xBA, 0x43, 0xE4, 0xBB, 0x80, 0x43,
+	0xE4, 0xBB, 0x8C, 0x43, 0xE4, 0xBB, 0xA4, 0x43,
+	// Bytes 740 - 77f
+	0xE4, 0xBC, 0x81, 0x43, 0xE4, 0xBC, 0x91, 0x43,
+	0xE4, 0xBD, 0xA0, 0x43, 0xE4, 0xBE, 0x80, 0x43,
+	0xE4, 0xBE, 0x86, 0x43, 0xE4, 0xBE, 0x8B, 0x43,
+	0xE4, 0xBE, 0xAE, 0x43, 0xE4, 0xBE, 0xBB, 0x43,
+	0xE4, 0xBE, 0xBF, 0x43, 0xE5, 0x80, 0x82, 0x43,
+	0xE5, 0x80, 0xAB, 0x43, 0xE5, 0x81, 0xBA, 0x43,
+	0xE5, 0x82, 0x99, 0x43, 0xE5, 0x83, 0x8F, 0x43,
+	0xE5, 0x83, 0x9A, 0x43, 0xE5, 0x83, 0xA7, 0x43,
+	// Bytes 780 - 7bf
+	0xE5, 0x84, 0xAA, 0x43, 0xE5, 0x84, 0xBF, 0x43,
+	0xE5, 0x85, 0x80, 0x43, 0xE5, 0x85, 0x85, 0x43,
+	0xE5, 0x85, 0x8D, 0x43, 0xE5, 0x85, 0x94, 0x43,
+	0xE5, 0x85, 0xA4, 0x43, 0xE5, 0x85, 0xA5, 0x43,
+	0xE5, 0x85, 0xA7, 0x43, 0xE5, 0x85, 0xA8, 0x43,
+	0xE5, 0x85, 0xA9, 0x43, 0xE5, 0x85, 0xAB, 0x43,
+	0xE5, 0x85, 0xAD, 0x43, 0xE5, 0x85, 0xB7, 0x43,
+	0xE5, 0x86, 0x80, 0x43, 0xE5, 0x86, 0x82, 0x43,
+	// Bytes 7c0 - 7ff
+	0xE5, 0x86, 0x8D, 0x43, 0xE5, 0x86, 0x92, 0x43,
+	0xE5, 0x86, 0x95, 0x43, 0xE5, 0x86, 0x96, 0x43,
+	0xE5, 0x86, 0x97, 0x43, 0xE5, 0x86, 0x99, 0x43,
+	0xE5, 0x86, 0xA4, 0x43, 0xE5, 0x86, 0xAB, 0x43,
+	0xE5, 0x86, 0xAC, 0x43, 0xE5, 0x86, 0xB5, 0x43,
+	0xE5, 0x86, 0xB7, 0x43, 0xE5, 0x87, 0x89, 0x43,
+	0xE5, 0x87, 0x8C, 0x43, 0xE5, 0x87, 0x9C, 0x43,
+	0xE5, 0x87, 0x9E, 0x43, 0xE5, 0x87, 0xA0, 0x43,
+	// Bytes 800 - 83f
+	0xE5, 0x87, 0xB5, 0x43, 0xE5, 0x88, 0x80, 0x43,
+	0xE5, 0x88, 0x83, 0x43, 0xE5, 0x88, 0x87, 0x43,
+	0xE5, 0x88, 0x97, 0x43, 0xE5, 0x88, 0x9D, 0x43,
+	0xE5, 0x88, 0xA9, 0x43, 0xE5, 0x88, 0xBA, 0x43,
+	0xE5, 0x88, 0xBB, 0x43, 0xE5, 0x89, 0x86, 0x43,
+	0xE5, 0x89, 0x8D, 0x43, 0xE5, 0x89, 0xB2, 0x43,
+	0xE5, 0x89, 0xB7, 0x43, 0xE5, 0x8A, 0x89, 0x43,
+	0xE5, 0x8A, 0x9B, 0x43, 0xE5, 0x8A, 0xA3, 0x43,
+	// Bytes 840 - 87f
+	0xE5, 0x8A, 0xB3, 0x43, 0xE5, 0x8A, 0xB4, 0x43,
+	0xE5, 0x8B, 0x87, 0x43, 0xE5, 0x8B, 0x89, 0x43,
+	0xE5, 0x8B, 0x92, 0x43, 0xE5, 0x8B, 0x9E, 0x43,
+	0xE5, 0x8B, 0xA4, 0x43, 0xE5, 0x8B, 0xB5, 0x43,
+	0xE5, 0x8B, 0xB9, 0x43, 0xE5, 0x8B, 0xBA, 0x43,
+	0xE5, 0x8C, 0x85, 0x43, 0xE5, 0x8C, 0x86, 0x43,
+	0xE5, 0x8C, 0x95, 0x43, 0xE5, 0x8C, 0x97, 0x43,
+	0xE5, 0x8C, 0x9A, 0x43, 0xE5, 0x8C, 0xB8, 0x43,
+	// Bytes 880 - 8bf
+	0xE5, 0x8C, 0xBB, 0x43, 0xE5, 0x8C, 0xBF, 0x43,
+	0xE5, 0x8D, 0x81, 0x43, 0xE5, 0x8D, 0x84, 0x43,
+	0xE5, 0x8D, 0x85, 0x43, 0xE5, 0x8D, 0x89, 0x43,
+	0xE5, 0x8D, 0x91, 0x43, 0xE5, 0x8D, 0x94, 0x43,
+	0xE5, 0x8D, 0x9A, 0x43, 0xE5, 0x8D, 0x9C, 0x43,
+	0xE5, 0x8D, 0xA9, 0x43, 0xE5, 0x8D, 0xB0, 0x43,
+	0xE5, 0x8D, 0xB3, 0x43, 0xE5, 0x8D, 0xB5, 0x43,
+	0xE5, 0x8D, 0xBD, 0x43, 0xE5, 0x8D, 0xBF, 0x43,
+	// Bytes 8c0 - 8ff
+	0xE5, 0x8E, 0x82, 0x43, 0xE5, 0x8E, 0xB6, 0x43,
+	0xE5, 0x8F, 0x83, 0x43, 0xE5, 0x8F, 0x88, 0x43,
+	0xE5, 0x8F, 0x8A, 0x43, 0xE5, 0x8F, 0x8C, 0x43,
+	0xE5, 0x8F, 0x9F, 0x43, 0xE5, 0x8F, 0xA3, 0x43,
+	0xE5, 0x8F, 0xA5, 0x43, 0xE5, 0x8F, 0xAB, 0x43,
+	0xE5, 0x8F, 0xAF, 0x43, 0xE5, 0x8F, 0xB1, 0x43,
+	0xE5, 0x8F, 0xB3, 0x43, 0xE5, 0x90, 0x86, 0x43,
+	0xE5, 0x90, 0x88, 0x43, 0xE5, 0x90, 0x8D, 0x43,
+	// Bytes 900 - 93f
+	0xE5, 0x90, 0x8F, 0x43, 0xE5, 0x90, 0x9D, 0x43,
+	0xE5, 0x90, 0xB8, 0x43, 0xE5, 0x90, 0xB9, 0x43,
+	0xE5, 0x91, 0x82, 0x43, 0xE5, 0x91, 0x88, 0x43,
+	0xE5, 0x91, 0xA8, 0x43, 0xE5, 0x92, 0x9E, 0x43,
+	0xE5, 0x92, 0xA2, 0x43, 0xE5, 0x92, 0xBD, 0x43,
+	0xE5, 0x93, 0xB6, 0x43, 0xE5, 0x94, 0x90, 0x43,
+	0xE5, 0x95, 0x8F, 0x43, 0xE5, 0x95, 0x93, 0x43,
+	0xE5, 0x95, 0x95, 0x43, 0xE5, 0x95, 0xA3, 0x43,
+	// Bytes 940 - 97f
+	0xE5, 0x96, 0x84, 0x43, 0xE5, 0x96, 0x87, 0x43,
+	0xE5, 0x96, 0x99, 0x43, 0xE5, 0x96, 0x9D, 0x43,
+	0xE5, 0x96, 0xAB, 0x43, 0xE5, 0x96, 0xB3, 0x43,
+	0xE5, 0x96, 0xB6, 0x43, 0xE5, 0x97, 0x80, 0x43,
+	0xE5, 0x97, 0x82, 0x43, 0xE5, 0x97, 0xA2, 0x43,
+	0xE5, 0x98, 0x86, 0x43, 0xE5, 0x99, 0x91, 0x43,
+	0xE5, 0x99, 0xA8, 0x43, 0xE5, 0x99, 0xB4, 0x43,
+	0xE5, 0x9B, 0x97, 0x43, 0xE5, 0x9B, 0x9B, 0x43,
+	// Bytes 980 - 9bf
+	0xE5, 0x9B, 0xB9, 0x43, 0xE5, 0x9C, 0x96, 0x43,
+	0xE5, 0x9C, 0x97, 0x43, 0xE5, 0x9C, 0x9F, 0x43,
+	0xE5, 0x9C, 0xB0, 0x43, 0xE5, 0x9E, 0x8B, 0x43,
+	0xE5, 0x9F, 0x8E, 0x43, 0xE5, 0x9F, 0xB4, 0x43,
+	0xE5, 0xA0, 0x8D, 0x43, 0xE5, 0xA0, 0xB1, 0x43,
+	0xE5, 0xA0, 0xB2, 0x43, 0xE5, 0xA1, 0x80, 0x43,
+	0xE5, 0xA1, 0x9A, 0x43, 0xE5, 0xA1, 0x9E, 0x43,
+	0xE5, 0xA2, 0xA8, 0x43, 0xE5, 0xA2, 0xAC, 0x43,
+	// Bytes 9c0 - 9ff
+	0xE5, 0xA2, 0xB3, 0x43, 0xE5, 0xA3, 0x98, 0x43,
+	0xE5, 0xA3, 0x9F, 0x43, 0xE5, 0xA3, 0xAB, 0x43,
+	0xE5, 0xA3, 0xAE, 0x43, 0xE5, 0xA3, 0xB0, 0x43,
+	0xE5, 0xA3, 0xB2, 0x43, 0xE5, 0xA3, 0xB7, 0x43,
+	0xE5, 0xA4, 0x82, 0x43, 0xE5, 0xA4, 0x86, 0x43,
+	0xE5, 0xA4, 0x8A, 0x43, 0xE5, 0xA4, 0x95, 0x43,
+	0xE5, 0xA4, 0x9A, 0x43, 0xE5, 0xA4, 0x9C, 0x43,
+	0xE5, 0xA4, 0xA2, 0x43, 0xE5, 0xA4, 0xA7, 0x43,
+	// Bytes a00 - a3f
+	0xE5, 0xA4, 0xA9, 0x43, 0xE5, 0xA5, 0x84, 0x43,
+	0xE5, 0xA5, 0x88, 0x43, 0xE5, 0xA5, 0x91, 0x43,
+	0xE5, 0xA5, 0x94, 0x43, 0xE5, 0xA5, 0xA2, 0x43,
+	0xE5, 0xA5, 0xB3, 0x43, 0xE5, 0xA7, 0x98, 0x43,
+	0xE5, 0xA7, 0xAC, 0x43, 0xE5, 0xA8, 0x9B, 0x43,
+	0xE5, 0xA8, 0xA7, 0x43, 0xE5, 0xA9, 0xA2, 0x43,
+	0xE5, 0xA9, 0xA6, 0x43, 0xE5, 0xAA, 0xB5, 0x43,
+	0xE5, 0xAC, 0x88, 0x43, 0xE5, 0xAC, 0xA8, 0x43,
+	// Bytes a40 - a7f
+	0xE5, 0xAC, 0xBE, 0x43, 0xE5, 0xAD, 0x90, 0x43,
+	0xE5, 0xAD, 0x97, 0x43, 0xE5, 0xAD, 0xA6, 0x43,
+	0xE5, 0xAE, 0x80, 0x43, 0xE5, 0xAE, 0x85, 0x43,
+	0xE5, 0xAE, 0x97, 0x43, 0xE5, 0xAF, 0x83, 0x43,
+	0xE5, 0xAF, 0x98, 0x43, 0xE5, 0xAF, 0xA7, 0x43,
+	0xE5, 0xAF, 0xAE, 0x43, 0xE5, 0xAF, 0xB3, 0x43,
+	0xE5, 0xAF, 0xB8, 0x43, 0xE5, 0xAF, 0xBF, 0x43,
+	0xE5, 0xB0, 0x86, 0x43, 0xE5, 0xB0, 0x8F, 0x43,
+	// Bytes a80 - abf
+	0xE5, 0xB0, 0xA2, 0x43, 0xE5, 0xB0, 0xB8, 0x43,
+	0xE5, 0xB0, 0xBF, 0x43, 0xE5, 0xB1, 0xA0, 0x43,
+	0xE5, 0xB1, 0xA2, 0x43, 0xE5, 0xB1, 0xA4, 0x43,
+	0xE5, 0xB1, 0xA5, 0x43, 0xE5, 0xB1, 0xAE, 0x43,
+	0xE5, 0xB1, 0xB1, 0x43, 0xE5, 0xB2, 0x8D, 0x43,
+	0xE5, 0xB3, 0x80, 0x43, 0xE5, 0xB4, 0x99, 0x43,
+	0xE5, 0xB5, 0x83, 0x43, 0xE5, 0xB5, 0x90, 0x43,
+	0xE5, 0xB5, 0xAB, 0x43, 0xE5, 0xB5, 0xAE, 0x43,
+	// Bytes ac0 - aff
+	0xE5, 0xB5, 0xBC, 0x43, 0xE5, 0xB6, 0xB2, 0x43,
+	0xE5, 0xB6, 0xBA, 0x43, 0xE5, 0xB7, 0x9B, 0x43,
+	0xE5, 0xB7, 0xA1, 0x43, 0xE5, 0xB7, 0xA2, 0x43,
+	0xE5, 0xB7, 0xA5, 0x43, 0xE5, 0xB7, 0xA6, 0x43,
+	0xE5, 0xB7, 0xB1, 0x43, 0xE5, 0xB7, 0xBD, 0x43,
+	0xE5, 0xB7, 0xBE, 0x43, 0xE5, 0xB8, 0xA8, 0x43,
+	0xE5, 0xB8, 0xBD, 0x43, 0xE5, 0xB9, 0xA9, 0x43,
+	0xE5, 0xB9, 0xB2, 0x43, 0xE5, 0xB9, 0xB4, 0x43,
+	// Bytes b00 - b3f
+	0xE5, 0xB9, 0xBA, 0x43, 0xE5, 0xB9, 0xBC, 0x43,
+	0xE5, 0xB9, 0xBF, 0x43, 0xE5, 0xBA, 0xA6, 0x43,
+	0xE5, 0xBA, 0xB0, 0x43, 0xE5, 0xBA, 0xB3, 0x43,
+	0xE5, 0xBA, 0xB6, 0x43, 0xE5, 0xBB, 0x89, 0x43,
+	0xE5, 0xBB, 0x8A, 0x43, 0xE5, 0xBB, 0x92, 0x43,
+	0xE5, 0xBB, 0x93, 0x43, 0xE5, 0xBB, 0x99, 0x43,
+	0xE5, 0xBB, 0xAC, 0x43, 0xE5, 0xBB, 0xB4, 0x43,
+	0xE5, 0xBB, 0xBE, 0x43, 0xE5, 0xBC, 0x84, 0x43,
+	// Bytes b40 - b7f
+	0xE5, 0xBC, 0x8B, 0x43, 0xE5, 0xBC, 0x93, 0x43,
+	0xE5, 0xBC, 0xA2, 0x43, 0xE5, 0xBD, 0x90, 0x43,
+	0xE5, 0xBD, 0x93, 0x43, 0xE5, 0xBD, 0xA1, 0x43,
+	0xE5, 0xBD, 0xA2, 0x43, 0xE5, 0xBD, 0xA9, 0x43,
+	0xE5, 0xBD, 0xAB, 0x43, 0xE5, 0xBD, 0xB3, 0x43,
+	0xE5, 0xBE, 0x8B, 0x43, 0xE5, 0xBE, 0x8C, 0x43,
+	0xE5, 0xBE, 0x97, 0x43, 0xE5, 0xBE, 0x9A, 0x43,
+	0xE5, 0xBE, 0xA9, 0x43, 0xE5, 0xBE, 0xAD, 0x43,
+	// Bytes b80 - bbf
+	0xE5, 0xBF, 0x83, 0x43, 0xE5, 0xBF, 0x8D, 0x43,
+	0xE5, 0xBF, 0x97, 0x43, 0xE5, 0xBF, 0xB5, 0x43,
+	0xE5, 0xBF, 0xB9, 0x43, 0xE6, 0x80, 0x92, 0x43,
+	0xE6, 0x80, 0x9C, 0x43, 0xE6, 0x81, 0xB5, 0x43,
+	0xE6, 0x82, 0x81, 0x43, 0xE6, 0x82, 0x94, 0x43,
+	0xE6, 0x83, 0x87, 0x43, 0xE6, 0x83, 0x98, 0x43,
+	0xE6, 0x83, 0xA1, 0x43, 0xE6, 0x84, 0x88, 0x43,
+	0xE6, 0x85, 0x84, 0x43, 0xE6, 0x85, 0x88, 0x43,
+	// Bytes bc0 - bff
+	0xE6, 0x85, 0x8C, 0x43, 0xE6, 0x85, 0x8E, 0x43,
+	0xE6, 0x85, 0xA0, 0x43, 0xE6, 0x85, 0xA8, 0x43,
+	0xE6, 0x85, 0xBA, 0x43, 0xE6, 0x86, 0x8E, 0x43,
+	0xE6, 0x86, 0x90, 0x43, 0xE6, 0x86, 0xA4, 0x43,
+	0xE6, 0x86, 0xAF, 0x43, 0xE6, 0x86, 0xB2, 0x43,
+	0xE6, 0x87, 0x9E, 0x43, 0xE6, 0x87, 0xB2, 0x43,
+	0xE6, 0x87, 0xB6, 0x43, 0xE6, 0x88, 0x80, 0x43,
+	0xE6, 0x88, 0x88, 0x43, 0xE6, 0x88, 0x90, 0x43,
+	// Bytes c00 - c3f
+	0xE6, 0x88, 0x9B, 0x43, 0xE6, 0x88, 0xAE, 0x43,
+	0xE6, 0x88, 0xB4, 0x43, 0xE6, 0x88, 0xB6, 0x43,
+	0xE6, 0x89, 0x8B, 0x43, 0xE6, 0x89, 0x93, 0x43,
+	0xE6, 0x89, 0x9D, 0x43, 0xE6, 0x8A, 0x95, 0x43,
+	0xE6, 0x8A, 0xB1, 0x43, 0xE6, 0x8B, 0x89, 0x43,
+	0xE6, 0x8B, 0x8F, 0x43, 0xE6, 0x8B, 0x93, 0x43,
+	0xE6, 0x8B, 0x94, 0x43, 0xE6, 0x8B, 0xBC, 0x43,
+	0xE6, 0x8B, 0xBE, 0x43, 0xE6, 0x8C, 0x87, 0x43,
+	// Bytes c40 - c7f
+	0xE6, 0x8C, 0xBD, 0x43, 0xE6, 0x8D, 0x90, 0x43,
+	0xE6, 0x8D, 0x95, 0x43, 0xE6, 0x8D, 0xA8, 0x43,
+	0xE6, 0x8D, 0xBB, 0x43, 0xE6, 0x8E, 0x83, 0x43,
+	0xE6, 0x8E, 0xA0, 0x43, 0xE6, 0x8E, 0xA9, 0x43,
+	0xE6, 0x8F, 0x84, 0x43, 0xE6, 0x8F, 0x85, 0x43,
+	0xE6, 0x8F, 0xA4, 0x43, 0xE6, 0x90, 0x9C, 0x43,
+	0xE6, 0x90, 0xA2, 0x43, 0xE6, 0x91, 0x92, 0x43,
+	0xE6, 0x91, 0xA9, 0x43, 0xE6, 0x91, 0xB7, 0x43,
+	// Bytes c80 - cbf
+	0xE6, 0x91, 0xBE, 0x43, 0xE6, 0x92, 0x9A, 0x43,
+	0xE6, 0x92, 0x9D, 0x43, 0xE6, 0x93, 0x84, 0x43,
+	0xE6, 0x94, 0xAF, 0x43, 0xE6, 0x94, 0xB4, 0x43,
+	0xE6, 0x95, 0x8F, 0x43, 0xE6, 0x95, 0x96, 0x43,
+	0xE6, 0x95, 0xAC, 0x43, 0xE6, 0x95, 0xB8, 0x43,
+	0xE6, 0x96, 0x87, 0x43, 0xE6, 0x96, 0x97, 0x43,
+	0xE6, 0x96, 0x99, 0x43, 0xE6, 0x96, 0xA4, 0x43,
+	0xE6, 0x96, 0xB0, 0x43, 0xE6, 0x96, 0xB9, 0x43,
+	// Bytes cc0 - cff
+	0xE6, 0x97, 0x85, 0x43, 0xE6, 0x97, 0xA0, 0x43,
+	0xE6, 0x97, 0xA2, 0x43, 0xE6, 0x97, 0xA3, 0x43,
+	0xE6, 0x97, 0xA5, 0x43, 0xE6, 0x98, 0x93, 0x43,
+	0xE6, 0x98, 0xA0, 0x43, 0xE6, 0x99, 0x89, 0x43,
+	0xE6, 0x99, 0xB4, 0x43, 0xE6, 0x9A, 0x88, 0x43,
+	0xE6, 0x9A, 0x91, 0x43, 0xE6, 0x9A, 0x9C, 0x43,
+	0xE6, 0x9A, 0xB4, 0x43, 0xE6, 0x9B, 0x86, 0x43,
+	0xE6, 0x9B, 0xB0, 0x43, 0xE6, 0x9B, 0xB4, 0x43,
+	// Bytes d00 - d3f
+	0xE6, 0x9B, 0xB8, 0x43, 0xE6, 0x9C, 0x80, 0x43,
+	0xE6, 0x9C, 0x88, 0x43, 0xE6, 0x9C, 0x89, 0x43,
+	0xE6, 0x9C, 0x97, 0x43, 0xE6, 0x9C, 0x9B, 0x43,
+	0xE6, 0x9C, 0xA1, 0x43, 0xE6, 0x9C, 0xA8, 0x43,
+	0xE6, 0x9D, 0x8E, 0x43, 0xE6, 0x9D, 0x93, 0x43,
+	0xE6, 0x9D, 0x96, 0x43, 0xE6, 0x9D, 0x9E, 0x43,
+	0xE6, 0x9D, 0xBB, 0x43, 0xE6, 0x9E, 0x85, 0x43,
+	0xE6, 0x9E, 0x97, 0x43, 0xE6, 0x9F, 0xB3, 0x43,
+	// Bytes d40 - d7f
+	0xE6, 0x9F, 0xBA, 0x43, 0xE6, 0xA0, 0x97, 0x43,
+	0xE6, 0xA0, 0x9F, 0x43, 0xE6, 0xA0, 0xAA, 0x43,
+	0xE6, 0xA1, 0x92, 0x43, 0xE6, 0xA2, 0x81, 0x43,
+	0xE6, 0xA2, 0x85, 0x43, 0xE6, 0xA2, 0x8E, 0x43,
+	0xE6, 0xA2, 0xA8, 0x43, 0xE6, 0xA4, 0x94, 0x43,
+	0xE6, 0xA5, 0x82, 0x43, 0xE6, 0xA6, 0xA3, 0x43,
+	0xE6, 0xA7, 0xAA, 0x43, 0xE6, 0xA8, 0x82, 0x43,
+	0xE6, 0xA8, 0x93, 0x43, 0xE6, 0xAA, 0xA8, 0x43,
+	// Bytes d80 - dbf
+	0xE6, 0xAB, 0x93, 0x43, 0xE6, 0xAB, 0x9B, 0x43,
+	0xE6, 0xAC, 0x84, 0x43, 0xE6, 0xAC, 0xA0, 0x43,
+	0xE6, 0xAC, 0xA1, 0x43, 0xE6, 0xAD, 0x94, 0x43,
+	0xE6, 0xAD, 0xA2, 0x43, 0xE6, 0xAD, 0xA3, 0x43,
+	0xE6, 0xAD, 0xB2, 0x43, 0xE6, 0xAD, 0xB7, 0x43,
+	0xE6, 0xAD, 0xB9, 0x43, 0xE6, 0xAE, 0x9F, 0x43,
+	0xE6, 0xAE, 0xAE, 0x43, 0xE6, 0xAE, 0xB3, 0x43,
+	0xE6, 0xAE, 0xBA, 0x43, 0xE6, 0xAE, 0xBB, 0x43,
+	// Bytes dc0 - dff
+	0xE6, 0xAF, 0x8B, 0x43, 0xE6, 0xAF, 0x8D, 0x43,
+	0xE6, 0xAF, 0x94, 0x43, 0xE6, 0xAF, 0x9B, 0x43,
+	0xE6, 0xB0, 0x8F, 0x43, 0xE6, 0xB0, 0x94, 0x43,
+	0xE6, 0xB0, 0xB4, 0x43, 0xE6, 0xB1, 0x8E, 0x43,
+	0xE6, 0xB1, 0xA7, 0x43, 0xE6, 0xB2, 0x88, 0x43,
+	0xE6, 0xB2, 0xBF, 0x43, 0xE6, 0xB3, 0x8C, 0x43,
+	0xE6, 0xB3, 0x8D, 0x43, 0xE6, 0xB3, 0xA5, 0x43,
+	0xE6, 0xB3, 0xA8, 0x43, 0xE6, 0xB4, 0x96, 0x43,
+	// Bytes e00 - e3f
+	0xE6, 0xB4, 0x9B, 0x43, 0xE6, 0xB4, 0x9E, 0x43,
+	0xE6, 0xB4, 0xB4, 0x43, 0xE6, 0xB4, 0xBE, 0x43,
+	0xE6, 0xB5, 0x81, 0x43, 0xE6, 0xB5, 0xA9, 0x43,
+	0xE6, 0xB5, 0xAA, 0x43, 0xE6, 0xB5, 0xB7, 0x43,
+	0xE6, 0xB5, 0xB8, 0x43, 0xE6, 0xB6, 0x85, 0x43,
+	0xE6, 0xB7, 0x8B, 0x43, 0xE6, 0xB7, 0x9A, 0x43,
+	0xE6, 0xB7, 0xAA, 0x43, 0xE6, 0xB7, 0xB9, 0x43,
+	0xE6, 0xB8, 0x9A, 0x43, 0xE6, 0xB8, 0xAF, 0x43,
+	// Bytes e40 - e7f
+	0xE6, 0xB9, 0xAE, 0x43, 0xE6, 0xBA, 0x80, 0x43,
+	0xE6, 0xBA, 0x9C, 0x43, 0xE6, 0xBA, 0xBA, 0x43,
+	0xE6, 0xBB, 0x87, 0x43, 0xE6, 0xBB, 0x8B, 0x43,
+	0xE6, 0xBB, 0x91, 0x43, 0xE6, 0xBB, 0x9B, 0x43,
+	0xE6, 0xBC, 0x8F, 0x43, 0xE6, 0xBC, 0x94, 0x43,
+	0xE6, 0xBC, 0xA2, 0x43, 0xE6, 0xBC, 0xA3, 0x43,
+	0xE6, 0xBD, 0xAE, 0x43, 0xE6, 0xBF, 0x86, 0x43,
+	0xE6, 0xBF, 0xAB, 0x43, 0xE6, 0xBF, 0xBE, 0x43,
+	// Bytes e80 - ebf
+	0xE7, 0x80, 0x9B, 0x43, 0xE7, 0x80, 0x9E, 0x43,
+	0xE7, 0x80, 0xB9, 0x43, 0xE7, 0x81, 0x8A, 0x43,
+	0xE7, 0x81, 0xAB, 0x43, 0xE7, 0x81, 0xB0, 0x43,
+	0xE7, 0x81, 0xB7, 0x43, 0xE7, 0x81, 0xBD, 0x43,
+	0xE7, 0x82, 0x99, 0x43, 0xE7, 0x82, 0xAD, 0x43,
+	0xE7, 0x83, 0x88, 0x43, 0xE7, 0x83, 0x99, 0x43,
+	0xE7, 0x84, 0xA1, 0x43, 0xE7, 0x85, 0x85, 0x43,
+	0xE7, 0x85, 0x89, 0x43, 0xE7, 0x85, 0xAE, 0x43,
+	// Bytes ec0 - eff
+	0xE7, 0x86, 0x9C, 0x43, 0xE7, 0x87, 0x8E, 0x43,
+	0xE7, 0x87, 0x90, 0x43, 0xE7, 0x88, 0x90, 0x43,
+	0xE7, 0x88, 0x9B, 0x43, 0xE7, 0x88, 0xA8, 0x43,
+	0xE7, 0x88, 0xAA, 0x43, 0xE7, 0x88, 0xAB, 0x43,
+	0xE7, 0x88, 0xB5, 0x43, 0xE7, 0x88, 0xB6, 0x43,
+	0xE7, 0x88, 0xBB, 0x43, 0xE7, 0x88, 0xBF, 0x43,
+	0xE7, 0x89, 0x87, 0x43, 0xE7, 0x89, 0x90, 0x43,
+	0xE7, 0x89, 0x99, 0x43, 0xE7, 0x89, 0x9B, 0x43,
+	// Bytes f00 - f3f
+	0xE7, 0x89, 0xA2, 0x43, 0xE7, 0x89, 0xB9, 0x43,
+	0xE7, 0x8A, 0x80, 0x43, 0xE7, 0x8A, 0x95, 0x43,
+	0xE7, 0x8A, 0xAC, 0x43, 0xE7, 0x8A, 0xAF, 0x43,
+	0xE7, 0x8B, 0x80, 0x43, 0xE7, 0x8B, 0xBC, 0x43,
+	0xE7, 0x8C, 0xAA, 0x43, 0xE7, 0x8D, 0xB5, 0x43,
+	0xE7, 0x8D, 0xBA, 0x43, 0xE7, 0x8E, 0x84, 0x43,
+	0xE7, 0x8E, 0x87, 0x43, 0xE7, 0x8E, 0x89, 0x43,
+	0xE7, 0x8E, 0x8B, 0x43, 0xE7, 0x8E, 0xA5, 0x43,
+	// Bytes f40 - f7f
+	0xE7, 0x8E, 0xB2, 0x43, 0xE7, 0x8F, 0x9E, 0x43,
+	0xE7, 0x90, 0x86, 0x43, 0xE7, 0x90, 0x89, 0x43,
+	0xE7, 0x90, 0xA2, 0x43, 0xE7, 0x91, 0x87, 0x43,
+	0xE7, 0x91, 0x9C, 0x43, 0xE7, 0x91, 0xA9, 0x43,
+	0xE7, 0x91, 0xB1, 0x43, 0xE7, 0x92, 0x85, 0x43,
+	0xE7, 0x92, 0x89, 0x43, 0xE7, 0x92, 0x98, 0x43,
+	0xE7, 0x93, 0x8A, 0x43, 0xE7, 0x93, 0x9C, 0x43,
+	0xE7, 0x93, 0xA6, 0x43, 0xE7, 0x94, 0x86, 0x43,
+	// Bytes f80 - fbf
+	0xE7, 0x94, 0x98, 0x43, 0xE7, 0x94, 0x9F, 0x43,
+	0xE7, 0x94, 0xA4, 0x43, 0xE7, 0x94, 0xA8, 0x43,
+	0xE7, 0x94, 0xB0, 0x43, 0xE7, 0x94, 0xB2, 0x43,
+	0xE7, 0x94, 0xB3, 0x43, 0xE7, 0x94, 0xB7, 0x43,
+	0xE7, 0x94, 0xBB, 0x43, 0xE7, 0x94, 0xBE, 0x43,
+	0xE7, 0x95, 0x99, 0x43, 0xE7, 0x95, 0xA5, 0x43,
+	0xE7, 0x95, 0xB0, 0x43, 0xE7, 0x96, 0x8B, 0x43,
+	0xE7, 0x96, 0x92, 0x43, 0xE7, 0x97, 0xA2, 0x43,
+	// Bytes fc0 - fff
+	0xE7, 0x98, 0x90, 0x43, 0xE7, 0x98, 0x9D, 0x43,
+	0xE7, 0x98, 0x9F, 0x43, 0xE7, 0x99, 0x82, 0x43,
+	0xE7, 0x99, 0xA9, 0x43, 0xE7, 0x99, 0xB6, 0x43,
+	0xE7, 0x99, 0xBD, 0x43, 0xE7, 0x9A, 0xAE, 0x43,
+	0xE7, 0x9A, 0xBF, 0x43, 0xE7, 0x9B, 0x8A, 0x43,
+	0xE7, 0x9B, 0x9B, 0x43, 0xE7, 0x9B, 0xA3, 0x43,
+	0xE7, 0x9B, 0xA7, 0x43, 0xE7, 0x9B, 0xAE, 0x43,
+	0xE7, 0x9B, 0xB4, 0x43, 0xE7, 0x9C, 0x81, 0x43,
+	// Bytes 1000 - 103f
+	0xE7, 0x9C, 0x9E, 0x43, 0xE7, 0x9C, 0x9F, 0x43,
+	0xE7, 0x9D, 0x80, 0x43, 0xE7, 0x9D, 0x8A, 0x43,
+	0xE7, 0x9E, 0x8B, 0x43, 0xE7, 0x9E, 0xA7, 0x43,
+	0xE7, 0x9F, 0x9B, 0x43, 0xE7, 0x9F, 0xA2, 0x43,
+	0xE7, 0x9F, 0xB3, 0x43, 0xE7, 0xA1, 0x8E, 0x43,
+	0xE7, 0xA1, 0xAB, 0x43, 0xE7, 0xA2, 0x8C, 0x43,
+	0xE7, 0xA2, 0x91, 0x43, 0xE7, 0xA3, 0x8A, 0x43,
+	0xE7, 0xA3, 0x8C, 0x43, 0xE7, 0xA3, 0xBB, 0x43,
+	// Bytes 1040 - 107f
+	0xE7, 0xA4, 0xAA, 0x43, 0xE7, 0xA4, 0xBA, 0x43,
+	0xE7, 0xA4, 0xBC, 0x43, 0xE7, 0xA4, 0xBE, 0x43,
+	0xE7, 0xA5, 0x88, 0x43, 0xE7, 0xA5, 0x89, 0x43,
+	0xE7, 0xA5, 0x90, 0x43, 0xE7, 0xA5, 0x96, 0x43,
+	0xE7, 0xA5, 0x9D, 0x43, 0xE7, 0xA5, 0x9E, 0x43,
+	0xE7, 0xA5, 0xA5, 0x43, 0xE7, 0xA5, 0xBF, 0x43,
+	0xE7, 0xA6, 0x81, 0x43, 0xE7, 0xA6, 0x8D, 0x43,
+	0xE7, 0xA6, 0x8E, 0x43, 0xE7, 0xA6, 0x8F, 0x43,
+	// Bytes 1080 - 10bf
+	0xE7, 0xA6, 0xAE, 0x43, 0xE7, 0xA6, 0xB8, 0x43,
+	0xE7, 0xA6, 0xBE, 0x43, 0xE7, 0xA7, 0x8A, 0x43,
+	0xE7, 0xA7, 0x98, 0x43, 0xE7, 0xA7, 0xAB, 0x43,
+	0xE7, 0xA8, 0x9C, 0x43, 0xE7, 0xA9, 0x80, 0x43,
+	0xE7, 0xA9, 0x8A, 0x43, 0xE7, 0xA9, 0x8F, 0x43,
+	0xE7, 0xA9, 0xB4, 0x43, 0xE7, 0xA9, 0xBA, 0x43,
+	0xE7, 0xAA, 0x81, 0x43, 0xE7, 0xAA, 0xB1, 0x43,
+	0xE7, 0xAB, 0x8B, 0x43, 0xE7, 0xAB, 0xAE, 0x43,
+	// Bytes 10c0 - 10ff
+	0xE7, 0xAB, 0xB9, 0x43, 0xE7, 0xAC, 0xA0, 0x43,
+	0xE7, 0xAE, 0x8F, 0x43, 0xE7, 0xAF, 0x80, 0x43,
+	0xE7, 0xAF, 0x86, 0x43, 0xE7, 0xAF, 0x89, 0x43,
+	0xE7, 0xB0, 0xBE, 0x43, 0xE7, 0xB1, 0xA0, 0x43,
+	0xE7, 0xB1, 0xB3, 0x43, 0xE7, 0xB1, 0xBB, 0x43,
+	0xE7, 0xB2, 0x92, 0x43, 0xE7, 0xB2, 0xBE, 0x43,
+	0xE7, 0xB3, 0x92, 0x43, 0xE7, 0xB3, 0x96, 0x43,
+	0xE7, 0xB3, 0xA3, 0x43, 0xE7, 0xB3, 0xA7, 0x43,
+	// Bytes 1100 - 113f
+	0xE7, 0xB3, 0xA8, 0x43, 0xE7, 0xB3, 0xB8, 0x43,
+	0xE7, 0xB4, 0x80, 0x43, 0xE7, 0xB4, 0x90, 0x43,
+	0xE7, 0xB4, 0xA2, 0x43, 0xE7, 0xB4, 0xAF, 0x43,
+	0xE7, 0xB5, 0x82, 0x43, 0xE7, 0xB5, 0x9B, 0x43,
+	0xE7, 0xB5, 0xA3, 0x43, 0xE7, 0xB6, 0xA0, 0x43,
+	0xE7, 0xB6, 0xBE, 0x43, 0xE7, 0xB7, 0x87, 0x43,
+	0xE7, 0xB7, 0xB4, 0x43, 0xE7, 0xB8, 0x82, 0x43,
+	0xE7, 0xB8, 0x89, 0x43, 0xE7, 0xB8, 0xB7, 0x43,
+	// Bytes 1140 - 117f
+	0xE7, 0xB9, 0x81, 0x43, 0xE7, 0xB9, 0x85, 0x43,
+	0xE7, 0xBC, 0xB6, 0x43, 0xE7, 0xBC, 0xBE, 0x43,
+	0xE7, 0xBD, 0x91, 0x43, 0xE7, 0xBD, 0xB2, 0x43,
+	0xE7, 0xBD, 0xB9, 0x43, 0xE7, 0xBD, 0xBA, 0x43,
+	0xE7, 0xBE, 0x85, 0x43, 0xE7, 0xBE, 0x8A, 0x43,
+	0xE7, 0xBE, 0x95, 0x43, 0xE7, 0xBE, 0x9A, 0x43,
+	0xE7, 0xBE, 0xBD, 0x43, 0xE7, 0xBF, 0xBA, 0x43,
+	0xE8, 0x80, 0x81, 0x43, 0xE8, 0x80, 0x85, 0x43,
+	// Bytes 1180 - 11bf
+	0xE8, 0x80, 0x8C, 0x43, 0xE8, 0x80, 0x92, 0x43,
+	0xE8, 0x80, 0xB3, 0x43, 0xE8, 0x81, 0x86, 0x43,
+	0xE8, 0x81, 0xA0, 0x43, 0xE8, 0x81, 0xAF, 0x43,
+	0xE8, 0x81, 0xB0, 0x43, 0xE8, 0x81, 0xBE, 0x43,
+	0xE8, 0x81, 0xBF, 0x43, 0xE8, 0x82, 0x89, 0x43,
+	0xE8, 0x82, 0x8B, 0x43, 0xE8, 0x82, 0xAD, 0x43,
+	0xE8, 0x82, 0xB2, 0x43, 0xE8, 0x84, 0x83, 0x43,
+	0xE8, 0x84, 0xBE, 0x43, 0xE8, 0x87, 0x98, 0x43,
+	// Bytes 11c0 - 11ff
+	0xE8, 0x87, 0xA3, 0x43, 0xE8, 0x87, 0xA8, 0x43,
+	0xE8, 0x87, 0xAA, 0x43, 0xE8, 0x87, 0xAD, 0x43,
+	0xE8, 0x87, 0xB3, 0x43, 0xE8, 0x87, 0xBC, 0x43,
+	0xE8, 0x88, 0x81, 0x43, 0xE8, 0x88, 0x84, 0x43,
+	0xE8, 0x88, 0x8C, 0x43, 0xE8, 0x88, 0x98, 0x43,
+	0xE8, 0x88, 0x9B, 0x43, 0xE8, 0x88, 0x9F, 0x43,
+	0xE8, 0x89, 0xAE, 0x43, 0xE8, 0x89, 0xAF, 0x43,
+	0xE8, 0x89, 0xB2, 0x43, 0xE8, 0x89, 0xB8, 0x43,
+	// Bytes 1200 - 123f
+	0xE8, 0x89, 0xB9, 0x43, 0xE8, 0x8A, 0x8B, 0x43,
+	0xE8, 0x8A, 0x91, 0x43, 0xE8, 0x8A, 0x9D, 0x43,
+	0xE8, 0x8A, 0xB1, 0x43, 0xE8, 0x8A, 0xB3, 0x43,
+	0xE8, 0x8A, 0xBD, 0x43, 0xE8, 0x8B, 0xA5, 0x43,
+	0xE8, 0x8B, 0xA6, 0x43, 0xE8, 0x8C, 0x9D, 0x43,
+	0xE8, 0x8C, 0xA3, 0x43, 0xE8, 0x8C, 0xB6, 0x43,
+	0xE8, 0x8D, 0x92, 0x43, 0xE8, 0x8D, 0x93, 0x43,
+	0xE8, 0x8D, 0xA3, 0x43, 0xE8, 0x8E, 0xAD, 0x43,
+	// Bytes 1240 - 127f
+	0xE8, 0x8E, 0xBD, 0x43, 0xE8, 0x8F, 0x89, 0x43,
+	0xE8, 0x8F, 0x8A, 0x43, 0xE8, 0x8F, 0x8C, 0x43,
+	0xE8, 0x8F, 0x9C, 0x43, 0xE8, 0x8F, 0xA7, 0x43,
+	0xE8, 0x8F, 0xAF, 0x43, 0xE8, 0x8F, 0xB1, 0x43,
+	0xE8, 0x90, 0xBD, 0x43, 0xE8, 0x91, 0x89, 0x43,
+	0xE8, 0x91, 0x97, 0x43, 0xE8, 0x93, 0xAE, 0x43,
+	0xE8, 0x93, 0xB1, 0x43, 0xE8, 0x93, 0xB3, 0x43,
+	0xE8, 0x93, 0xBC, 0x43, 0xE8, 0x94, 0x96, 0x43,
+	// Bytes 1280 - 12bf
+	0xE8, 0x95, 0xA4, 0x43, 0xE8, 0x97, 0x8D, 0x43,
+	0xE8, 0x97, 0xBA, 0x43, 0xE8, 0x98, 0x86, 0x43,
+	0xE8, 0x98, 0x92, 0x43, 0xE8, 0x98, 0xAD, 0x43,
+	0xE8, 0x98, 0xBF, 0x43, 0xE8, 0x99, 0x8D, 0x43,
+	0xE8, 0x99, 0x90, 0x43, 0xE8, 0x99, 0x9C, 0x43,
+	0xE8, 0x99, 0xA7, 0x43, 0xE8, 0x99, 0xA9, 0x43,
+	0xE8, 0x99, 0xAB, 0x43, 0xE8, 0x9A, 0x88, 0x43,
+	0xE8, 0x9A, 0xA9, 0x43, 0xE8, 0x9B, 0xA2, 0x43,
+	// Bytes 12c0 - 12ff
+	0xE8, 0x9C, 0x8E, 0x43, 0xE8, 0x9C, 0xA8, 0x43,
+	0xE8, 0x9D, 0xAB, 0x43, 0xE8, 0x9D, 0xB9, 0x43,
+	0xE8, 0x9E, 0x86, 0x43, 0xE8, 0x9E, 0xBA, 0x43,
+	0xE8, 0x9F, 0xA1, 0x43, 0xE8, 0xA0, 0x81, 0x43,
+	0xE8, 0xA0, 0x9F, 0x43, 0xE8, 0xA1, 0x80, 0x43,
+	0xE8, 0xA1, 0x8C, 0x43, 0xE8, 0xA1, 0xA0, 0x43,
+	0xE8, 0xA1, 0xA3, 0x43, 0xE8, 0xA3, 0x82, 0x43,
+	0xE8, 0xA3, 0x8F, 0x43, 0xE8, 0xA3, 0x97, 0x43,
+	// Bytes 1300 - 133f
+	0xE8, 0xA3, 0x9E, 0x43, 0xE8, 0xA3, 0xA1, 0x43,
+	0xE8, 0xA3, 0xB8, 0x43, 0xE8, 0xA3, 0xBA, 0x43,
+	0xE8, 0xA4, 0x90, 0x43, 0xE8, 0xA5, 0x81, 0x43,
+	0xE8, 0xA5, 0xA4, 0x43, 0xE8, 0xA5, 0xBE, 0x43,
+	0xE8, 0xA6, 0x86, 0x43, 0xE8, 0xA6, 0x8B, 0x43,
+	0xE8, 0xA6, 0x96, 0x43, 0xE8, 0xA7, 0x92, 0x43,
+	0xE8, 0xA7, 0xA3, 0x43, 0xE8, 0xA8, 0x80, 0x43,
+	0xE8, 0xAA, 0xA0, 0x43, 0xE8, 0xAA, 0xAA, 0x43,
+	// Bytes 1340 - 137f
+	0xE8, 0xAA, 0xBF, 0x43, 0xE8, 0xAB, 0x8B, 0x43,
+	0xE8, 0xAB, 0x92, 0x43, 0xE8, 0xAB, 0x96, 0x43,
+	0xE8, 0xAB, 0xAD, 0x43, 0xE8, 0xAB, 0xB8, 0x43,
+	0xE8, 0xAB, 0xBE, 0x43, 0xE8, 0xAC, 0x81, 0x43,
+	0xE8, 0xAC, 0xB9, 0x43, 0xE8, 0xAD, 0x98, 0x43,
+	0xE8, 0xAE, 0x80, 0x43, 0xE8, 0xAE, 0x8A, 0x43,
+	0xE8, 0xB0, 0xB7, 0x43, 0xE8, 0xB1, 0x86, 0x43,
+	0xE8, 0xB1, 0x88, 0x43, 0xE8, 0xB1, 0x95, 0x43,
+	// Bytes 1380 - 13bf
+	0xE8, 0xB1, 0xB8, 0x43, 0xE8, 0xB2, 0x9D, 0x43,
+	0xE8, 0xB2, 0xA1, 0x43, 0xE8, 0xB2, 0xA9, 0x43,
+	0xE8, 0xB2, 0xAB, 0x43, 0xE8, 0xB3, 0x81, 0x43,
+	0xE8, 0xB3, 0x82, 0x43, 0xE8, 0xB3, 0x87, 0x43,
+	0xE8, 0xB3, 0x88, 0x43, 0xE8, 0xB3, 0x93, 0x43,
+	0xE8, 0xB4, 0x88, 0x43, 0xE8, 0xB4, 0x9B, 0x43,
+	0xE8, 0xB5, 0xA4, 0x43, 0xE8, 0xB5, 0xB0, 0x43,
+	0xE8, 0xB5, 0xB7, 0x43, 0xE8, 0xB6, 0xB3, 0x43,
+	// Bytes 13c0 - 13ff
+	0xE8, 0xB6, 0xBC, 0x43, 0xE8, 0xB7, 0x8B, 0x43,
+	0xE8, 0xB7, 0xAF, 0x43, 0xE8, 0xB7, 0xB0, 0x43,
+	0xE8, 0xBA, 0xAB, 0x43, 0xE8, 0xBB, 0x8A, 0x43,
+	0xE8, 0xBB, 0x94, 0x43, 0xE8, 0xBC, 0xA6, 0x43,
+	0xE8, 0xBC, 0xAA, 0x43, 0xE8, 0xBC, 0xB8, 0x43,
+	0xE8, 0xBC, 0xBB, 0x43, 0xE8, 0xBD, 0xA2, 0x43,
+	0xE8, 0xBE, 0x9B, 0x43, 0xE8, 0xBE, 0x9E, 0x43,
+	0xE8, 0xBE, 0xB0, 0x43, 0xE8, 0xBE, 0xB5, 0x43,
+	// Bytes 1400 - 143f
+	0xE8, 0xBE, 0xB6, 0x43, 0xE9, 0x80, 0xA3, 0x43,
+	0xE9, 0x80, 0xB8, 0x43, 0xE9, 0x81, 0x8A, 0x43,
+	0xE9, 0x81, 0xA9, 0x43, 0xE9, 0x81, 0xB2, 0x43,
+	0xE9, 0x81, 0xBC, 0x43, 0xE9, 0x82, 0x8F, 0x43,
+	0xE9, 0x82, 0x91, 0x43, 0xE9, 0x82, 0x94, 0x43,
+	0xE9, 0x83, 0x8E, 0x43, 0xE9, 0x83, 0x9E, 0x43,
+	0xE9, 0x83, 0xB1, 0x43, 0xE9, 0x83, 0xBD, 0x43,
+	0xE9, 0x84, 0x91, 0x43, 0xE9, 0x84, 0x9B, 0x43,
+	// Bytes 1440 - 147f
+	0xE9, 0x85, 0x89, 0x43, 0xE9, 0x85, 0x8D, 0x43,
+	0xE9, 0x85, 0xAA, 0x43, 0xE9, 0x86, 0x99, 0x43,
+	0xE9, 0x86, 0xB4, 0x43, 0xE9, 0x87, 0x86, 0x43,
+	0xE9, 0x87, 0x8C, 0x43, 0xE9, 0x87, 0x8F, 0x43,
+	0xE9, 0x87, 0x91, 0x43, 0xE9, 0x88, 0xB4, 0x43,
+	0xE9, 0x88, 0xB8, 0x43, 0xE9, 0x89, 0xB6, 0x43,
+	0xE9, 0x89, 0xBC, 0x43, 0xE9, 0x8B, 0x97, 0x43,
+	0xE9, 0x8B, 0x98, 0x43, 0xE9, 0x8C, 0x84, 0x43,
+	// Bytes 1480 - 14bf
+	0xE9, 0x8D, 0x8A, 0x43, 0xE9, 0x8F, 0xB9, 0x43,
+	0xE9, 0x90, 0x95, 0x43, 0xE9, 0x95, 0xB7, 0x43,
+	0xE9, 0x96, 0x80, 0x43, 0xE9, 0x96, 0x8B, 0x43,
+	0xE9, 0x96, 0xAD, 0x43, 0xE9, 0x96, 0xB7, 0x43,
+	0xE9, 0x98, 0x9C, 0x43, 0xE9, 0x98, 0xAE, 0x43,
+	0xE9, 0x99, 0x8B, 0x43, 0xE9, 0x99, 0x8D, 0x43,
+	0xE9, 0x99, 0xB5, 0x43, 0xE9, 0x99, 0xB8, 0x43,
+	0xE9, 0x99, 0xBC, 0x43, 0xE9, 0x9A, 0x86, 0x43,
+	// Bytes 14c0 - 14ff
+	0xE9, 0x9A, 0xA3, 0x43, 0xE9, 0x9A, 0xB6, 0x43,
+	0xE9, 0x9A, 0xB7, 0x43, 0xE9, 0x9A, 0xB8, 0x43,
+	0xE9, 0x9A, 0xB9, 0x43, 0xE9, 0x9B, 0x83, 0x43,
+	0xE9, 0x9B, 0xA2, 0x43, 0xE9, 0x9B, 0xA3, 0x43,
+	0xE9, 0x9B, 0xA8, 0x43, 0xE9, 0x9B, 0xB6, 0x43,
+	0xE9, 0x9B, 0xB7, 0x43, 0xE9, 0x9C, 0xA3, 0x43,
+	0xE9, 0x9C, 0xB2, 0x43, 0xE9, 0x9D, 0x88, 0x43,
+	0xE9, 0x9D, 0x91, 0x43, 0xE9, 0x9D, 0x96, 0x43,
+	// Bytes 1500 - 153f
+	0xE9, 0x9D, 0x9E, 0x43, 0xE9, 0x9D, 0xA2, 0x43,
+	0xE9, 0x9D, 0xA9, 0x43, 0xE9, 0x9F, 0x8B, 0x43,
+	0xE9, 0x9F, 0x9B, 0x43, 0xE9, 0x9F, 0xA0, 0x43,
+	0xE9, 0x9F, 0xAD, 0x43, 0xE9, 0x9F, 0xB3, 0x43,
+	0xE9, 0x9F, 0xBF, 0x43, 0xE9, 0xA0, 0x81, 0x43,
+	0xE9, 0xA0, 0x85, 0x43, 0xE9, 0xA0, 0x8B, 0x43,
+	0xE9, 0xA0, 0x98, 0x43, 0xE9, 0xA0, 0xA9, 0x43,
+	0xE9, 0xA0, 0xBB, 0x43, 0xE9, 0xA1, 0x9E, 0x43,
+	// Bytes 1540 - 157f
+	0xE9, 0xA2, 0xA8, 0x43, 0xE9, 0xA3, 0x9B, 0x43,
+	0xE9, 0xA3, 0x9F, 0x43, 0xE9, 0xA3, 0xA2, 0x43,
+	0xE9, 0xA3, 0xAF, 0x43, 0xE9, 0xA3, 0xBC, 0x43,
+	0xE9, 0xA4, 0xA8, 0x43, 0xE9, 0xA4, 0xA9, 0x43,
+	0xE9, 0xA6, 0x96, 0x43, 0xE9, 0xA6, 0x99, 0x43,
+	0xE9, 0xA6, 0xA7, 0x43, 0xE9, 0xA6, 0xAC, 0x43,
+	0xE9, 0xA7, 0x82, 0x43, 0xE9, 0xA7, 0xB1, 0x43,
+	0xE9, 0xA7, 0xBE, 0x43, 0xE9, 0xA9, 0xAA, 0x43,
+	// Bytes 1580 - 15bf
+	0xE9, 0xAA, 0xA8, 0x43, 0xE9, 0xAB, 0x98, 0x43,
+	0xE9, 0xAB, 0x9F, 0x43, 0xE9, 0xAC, 0x92, 0x43,
+	0xE9, 0xAC, 0xA5, 0x43, 0xE9, 0xAC, 0xAF, 0x43,
+	0xE9, 0xAC, 0xB2, 0x43, 0xE9, 0xAC, 0xBC, 0x43,
+	0xE9, 0xAD, 0x9A, 0x43, 0xE9, 0xAD, 0xAF, 0x43,
+	0xE9, 0xB1, 0x80, 0x43, 0xE9, 0xB1, 0x97, 0x43,
+	0xE9, 0xB3, 0xA5, 0x43, 0xE9, 0xB3, 0xBD, 0x43,
+	0xE9, 0xB5, 0xA7, 0x43, 0xE9, 0xB6, 0xB4, 0x43,
+	// Bytes 15c0 - 15ff
+	0xE9, 0xB7, 0xBA, 0x43, 0xE9, 0xB8, 0x9E, 0x43,
+	0xE9, 0xB9, 0xB5, 0x43, 0xE9, 0xB9, 0xBF, 0x43,
+	0xE9, 0xBA, 0x97, 0x43, 0xE9, 0xBA, 0x9F, 0x43,
+	0xE9, 0xBA, 0xA5, 0x43, 0xE9, 0xBA, 0xBB, 0x43,
+	0xE9, 0xBB, 0x83, 0x43, 0xE9, 0xBB, 0x8D, 0x43,
+	0xE9, 0xBB, 0x8E, 0x43, 0xE9, 0xBB, 0x91, 0x43,
+	0xE9, 0xBB, 0xB9, 0x43, 0xE9, 0xBB, 0xBD, 0x43,
+	0xE9, 0xBB, 0xBE, 0x43, 0xE9, 0xBC, 0x85, 0x43,
+	// Bytes 1600 - 163f
+	0xE9, 0xBC, 0x8E, 0x43, 0xE9, 0xBC, 0x8F, 0x43,
+	0xE9, 0xBC, 0x93, 0x43, 0xE9, 0xBC, 0x96, 0x43,
+	0xE9, 0xBC, 0xA0, 0x43, 0xE9, 0xBC, 0xBB, 0x43,
+	0xE9, 0xBD, 0x83, 0x43, 0xE9, 0xBD, 0x8A, 0x43,
+	0xE9, 0xBD, 0x92, 0x43, 0xE9, 0xBE, 0x8D, 0x43,
+	0xE9, 0xBE, 0x8E, 0x43, 0xE9, 0xBE, 0x9C, 0x43,
+	0xE9, 0xBE, 0x9F, 0x43, 0xE9, 0xBE, 0xA0, 0x43,
+	0xEA, 0x9C, 0xA7, 0x43, 0xEA, 0x9D, 0xAF, 0x43,
+	// Bytes 1640 - 167f
+	0xEA, 0xAC, 0xB7, 0x43, 0xEA, 0xAD, 0x92, 0x44,
+	0xF0, 0xA0, 0x84, 0xA2, 0x44, 0xF0, 0xA0, 0x94,
+	0x9C, 0x44, 0xF0, 0xA0, 0x94, 0xA5, 0x44, 0xF0,
+	0xA0, 0x95, 0x8B, 0x44, 0xF0, 0xA0, 0x98, 0xBA,
+	0x44, 0xF0, 0xA0, 0xA0, 0x84, 0x44, 0xF0, 0xA0,
+	0xA3, 0x9E, 0x44, 0xF0, 0xA0, 0xA8, 0xAC, 0x44,
+	0xF0, 0xA0, 0xAD, 0xA3, 0x44, 0xF0, 0xA1, 0x93,
+	0xA4, 0x44, 0xF0, 0xA1, 0x9A, 0xA8, 0x44, 0xF0,
+	// Bytes 1680 - 16bf
+	0xA1, 0x9B, 0xAA, 0x44, 0xF0, 0xA1, 0xA7, 0x88,
+	0x44, 0xF0, 0xA1, 0xAC, 0x98, 0x44, 0xF0, 0xA1,
+	0xB4, 0x8B, 0x44, 0xF0, 0xA1, 0xB7, 0xA4, 0x44,
+	0xF0, 0xA1, 0xB7, 0xA6, 0x44, 0xF0, 0xA2, 0x86,
+	0x83, 0x44, 0xF0, 0xA2, 0x86, 0x9F, 0x44, 0xF0,
+	0xA2, 0x8C, 0xB1, 0x44, 0xF0, 0xA2, 0x9B, 0x94,
+	0x44, 0xF0, 0xA2, 0xA1, 0x84, 0x44, 0xF0, 0xA2,
+	0xA1, 0x8A, 0x44, 0xF0, 0xA2, 0xAC, 0x8C, 0x44,
+	// Bytes 16c0 - 16ff
+	0xF0, 0xA2, 0xAF, 0xB1, 0x44, 0xF0, 0xA3, 0x80,
+	0x8A, 0x44, 0xF0, 0xA3, 0x8A, 0xB8, 0x44, 0xF0,
+	0xA3, 0x8D, 0x9F, 0x44, 0xF0, 0xA3, 0x8E, 0x93,
+	0x44, 0xF0, 0xA3, 0x8E, 0x9C, 0x44, 0xF0, 0xA3,
+	0x8F, 0x83, 0x44, 0xF0, 0xA3, 0x8F, 0x95, 0x44,
+	0xF0, 0xA3, 0x91, 0xAD, 0x44, 0xF0, 0xA3, 0x9A,
+	0xA3, 0x44, 0xF0, 0xA3, 0xA2, 0xA7, 0x44, 0xF0,
+	0xA3, 0xAA, 0x8D, 0x44, 0xF0, 0xA3, 0xAB, 0xBA,
+	// Bytes 1700 - 173f
+	0x44, 0xF0, 0xA3, 0xB2, 0xBC, 0x44, 0xF0, 0xA3,
+	0xB4, 0x9E, 0x44, 0xF0, 0xA3, 0xBB, 0x91, 0x44,
+	0xF0, 0xA3, 0xBD, 0x9E, 0x44, 0xF0, 0xA3, 0xBE,
+	0x8E, 0x44, 0xF0, 0xA4, 0x89, 0xA3, 0x44, 0xF0,
+	0xA4, 0x8B, 0xAE, 0x44, 0xF0, 0xA4, 0x8E, 0xAB,
+	0x44, 0xF0, 0xA4, 0x98, 0x88, 0x44, 0xF0, 0xA4,
+	0x9C, 0xB5, 0x44, 0xF0, 0xA4, 0xA0, 0x94, 0x44,
+	0xF0, 0xA4, 0xB0, 0xB6, 0x44, 0xF0, 0xA4, 0xB2,
+	// Bytes 1740 - 177f
+	0x92, 0x44, 0xF0, 0xA4, 0xBE, 0xA1, 0x44, 0xF0,
+	0xA4, 0xBE, 0xB8, 0x44, 0xF0, 0xA5, 0x81, 0x84,
+	0x44, 0xF0, 0xA5, 0x83, 0xB2, 0x44, 0xF0, 0xA5,
+	0x83, 0xB3, 0x44, 0xF0, 0xA5, 0x84, 0x99, 0x44,
+	0xF0, 0xA5, 0x84, 0xB3, 0x44, 0xF0, 0xA5, 0x89,
+	0x89, 0x44, 0xF0, 0xA5, 0x90, 0x9D, 0x44, 0xF0,
+	0xA5, 0x98, 0xA6, 0x44, 0xF0, 0xA5, 0x9A, 0x9A,
+	0x44, 0xF0, 0xA5, 0x9B, 0x85, 0x44, 0xF0, 0xA5,
+	// Bytes 1780 - 17bf
+	0xA5, 0xBC, 0x44, 0xF0, 0xA5, 0xAA, 0xA7, 0x44,
+	0xF0, 0xA5, 0xAE, 0xAB, 0x44, 0xF0, 0xA5, 0xB2,
+	0x80, 0x44, 0xF0, 0xA5, 0xB3, 0x90, 0x44, 0xF0,
+	0xA5, 0xBE, 0x86, 0x44, 0xF0, 0xA6, 0x87, 0x9A,
+	0x44, 0xF0, 0xA6, 0x88, 0xA8, 0x44, 0xF0, 0xA6,
+	0x89, 0x87, 0x44, 0xF0, 0xA6, 0x8B, 0x99, 0x44,
+	0xF0, 0xA6, 0x8C, 0xBE, 0x44, 0xF0, 0xA6, 0x93,
+	0x9A, 0x44, 0xF0, 0xA6, 0x94, 0xA3, 0x44, 0xF0,
+	// Bytes 17c0 - 17ff
+	0xA6, 0x96, 0xA8, 0x44, 0xF0, 0xA6, 0x9E, 0xA7,
+	0x44, 0xF0, 0xA6, 0x9E, 0xB5, 0x44, 0xF0, 0xA6,
+	0xAC, 0xBC, 0x44, 0xF0, 0xA6, 0xB0, 0xB6, 0x44,
+	0xF0, 0xA6, 0xB3, 0x95, 0x44, 0xF0, 0xA6, 0xB5,
+	0xAB, 0x44, 0xF0, 0xA6, 0xBC, 0xAC, 0x44, 0xF0,
+	0xA6, 0xBE, 0xB1, 0x44, 0xF0, 0xA7, 0x83, 0x92,
+	0x44, 0xF0, 0xA7, 0x8F, 0x8A, 0x44, 0xF0, 0xA7,
+	0x99, 0xA7, 0x44, 0xF0, 0xA7, 0xA2, 0xAE, 0x44,
+	// Bytes 1800 - 183f
+	0xF0, 0xA7, 0xA5, 0xA6, 0x44, 0xF0, 0xA7, 0xB2,
+	0xA8, 0x44, 0xF0, 0xA7, 0xBB, 0x93, 0x44, 0xF0,
+	0xA7, 0xBC, 0xAF, 0x44, 0xF0, 0xA8, 0x97, 0x92,
+	0x44, 0xF0, 0xA8, 0x97, 0xAD, 0x44, 0xF0, 0xA8,
+	0x9C, 0xAE, 0x44, 0xF0, 0xA8, 0xAF, 0xBA, 0x44,
+	0xF0, 0xA8, 0xB5, 0xB7, 0x44, 0xF0, 0xA9, 0x85,
+	0x85, 0x44, 0xF0, 0xA9, 0x87, 0x9F, 0x44, 0xF0,
+	0xA9, 0x88, 0x9A, 0x44, 0xF0, 0xA9, 0x90, 0x8A,
+	// Bytes 1840 - 187f
+	0x44, 0xF0, 0xA9, 0x92, 0x96, 0x44, 0xF0, 0xA9,
+	0x96, 0xB6, 0x44, 0xF0, 0xA9, 0xAC, 0xB0, 0x44,
+	0xF0, 0xAA, 0x83, 0x8E, 0x44, 0xF0, 0xAA, 0x84,
+	0x85, 0x44, 0xF0, 0xAA, 0x88, 0x8E, 0x44, 0xF0,
+	0xAA, 0x8A, 0x91, 0x44, 0xF0, 0xAA, 0x8E, 0x92,
+	0x44, 0xF0, 0xAA, 0x98, 0x80, 0x42, 0x21, 0x21,
+	0x42, 0x21, 0x3F, 0x42, 0x2E, 0x2E, 0x42, 0x30,
+	0x2C, 0x42, 0x30, 0x2E, 0x42, 0x31, 0x2C, 0x42,
+	// Bytes 1880 - 18bf
+	0x31, 0x2E, 0x42, 0x31, 0x30, 0x42, 0x31, 0x31,
+	0x42, 0x31, 0x32, 0x42, 0x31, 0x33, 0x42, 0x31,
+	0x34, 0x42, 0x31, 0x35, 0x42, 0x31, 0x36, 0x42,
+	0x31, 0x37, 0x42, 0x31, 0x38, 0x42, 0x31, 0x39,
+	0x42, 0x32, 0x2C, 0x42, 0x32, 0x2E, 0x42, 0x32,
+	0x30, 0x42, 0x32, 0x31, 0x42, 0x32, 0x32, 0x42,
+	0x32, 0x33, 0x42, 0x32, 0x34, 0x42, 0x32, 0x35,
+	0x42, 0x32, 0x36, 0x42, 0x32, 0x37, 0x42, 0x32,
+	// Bytes 18c0 - 18ff
+	0x38, 0x42, 0x32, 0x39, 0x42, 0x33, 0x2C, 0x42,
+	0x33, 0x2E, 0x42, 0x33, 0x30, 0x42, 0x33, 0x31,
+	0x42, 0x33, 0x32, 0x42, 0x33, 0x33, 0x42, 0x33,
+	0x34, 0x42, 0x33, 0x35, 0x42, 0x33, 0x36, 0x42,
+	0x33, 0x37, 0x42, 0x33, 0x38, 0x42, 0x33, 0x39,
+	0x42, 0x34, 0x2C, 0x42, 0x34, 0x2E, 0x42, 0x34,
+	0x30, 0x42, 0x34, 0x31, 0x42, 0x34, 0x32, 0x42,
+	0x34, 0x33, 0x42, 0x34, 0x34, 0x42, 0x34, 0x35,
+	// Bytes 1900 - 193f
+	0x42, 0x34, 0x36, 0x42, 0x34, 0x37, 0x42, 0x34,
+	0x38, 0x42, 0x34, 0x39, 0x42, 0x35, 0x2C, 0x42,
+	0x35, 0x2E, 0x42, 0x35, 0x30, 0x42, 0x36, 0x2C,
+	0x42, 0x36, 0x2E, 0x42, 0x37, 0x2C, 0x42, 0x37,
+	0x2E, 0x42, 0x38, 0x2C, 0x42, 0x38, 0x2E, 0x42,
+	0x39, 0x2C, 0x42, 0x39, 0x2E, 0x42, 0x3D, 0x3D,
+	0x42, 0x3F, 0x21, 0x42, 0x3F, 0x3F, 0x42, 0x41,
+	0x55, 0x42, 0x42, 0x71, 0x42, 0x43, 0x44, 0x42,
+	// Bytes 1940 - 197f
+	0x44, 0x4A, 0x42, 0x44, 0x5A, 0x42, 0x44, 0x7A,
+	0x42, 0x47, 0x42, 0x42, 0x47, 0x79, 0x42, 0x48,
+	0x50, 0x42, 0x48, 0x56, 0x42, 0x48, 0x67, 0x42,
+	0x48, 0x7A, 0x42, 0x49, 0x49, 0x42, 0x49, 0x4A,
+	0x42, 0x49, 0x55, 0x42, 0x49, 0x56, 0x42, 0x49,
+	0x58, 0x42, 0x4B, 0x42, 0x42, 0x4B, 0x4B, 0x42,
+	0x4B, 0x4D, 0x42, 0x4C, 0x4A, 0x42, 0x4C, 0x6A,
+	0x42, 0x4D, 0x42, 0x42, 0x4D, 0x43, 0x42, 0x4D,
+	// Bytes 1980 - 19bf
+	0x44, 0x42, 0x4D, 0x52, 0x42, 0x4D, 0x56, 0x42,
+	0x4D, 0x57, 0x42, 0x4E, 0x4A, 0x42, 0x4E, 0x6A,
+	0x42, 0x4E, 0x6F, 0x42, 0x50, 0x48, 0x42, 0x50,
+	0x52, 0x42, 0x50, 0x61, 0x42, 0x52, 0x73, 0x42,
+	0x53, 0x44, 0x42, 0x53, 0x4D, 0x42, 0x53, 0x53,
+	0x42, 0x53, 0x76, 0x42, 0x54, 0x4D, 0x42, 0x56,
+	0x49, 0x42, 0x57, 0x43, 0x42, 0x57, 0x5A, 0x42,
+	0x57, 0x62, 0x42, 0x58, 0x49, 0x42, 0x63, 0x63,
+	// Bytes 19c0 - 19ff
+	0x42, 0x63, 0x64, 0x42, 0x63, 0x6D, 0x42, 0x64,
+	0x42, 0x42, 0x64, 0x61, 0x42, 0x64, 0x6C, 0x42,
+	0x64, 0x6D, 0x42, 0x64, 0x7A, 0x42, 0x65, 0x56,
+	0x42, 0x66, 0x66, 0x42, 0x66, 0x69, 0x42, 0x66,
+	0x6C, 0x42, 0x66, 0x6D, 0x42, 0x68, 0x61, 0x42,
+	0x69, 0x69, 0x42, 0x69, 0x6A, 0x42, 0x69, 0x6E,
+	0x42, 0x69, 0x76, 0x42, 0x69, 0x78, 0x42, 0x6B,
+	0x41, 0x42, 0x6B, 0x56, 0x42, 0x6B, 0x57, 0x42,
+	// Bytes 1a00 - 1a3f
+	0x6B, 0x67, 0x42, 0x6B, 0x6C, 0x42, 0x6B, 0x6D,
+	0x42, 0x6B, 0x74, 0x42, 0x6C, 0x6A, 0x42, 0x6C,
+	0x6D, 0x42, 0x6C, 0x6E, 0x42, 0x6C, 0x78, 0x42,
+	0x6D, 0x32, 0x42, 0x6D, 0x33, 0x42, 0x6D, 0x41,
+	0x42, 0x6D, 0x56, 0x42, 0x6D, 0x57, 0x42, 0x6D,
+	0x62, 0x42, 0x6D, 0x67, 0x42, 0x6D, 0x6C, 0x42,
+	0x6D, 0x6D, 0x42, 0x6D, 0x73, 0x42, 0x6E, 0x41,
+	0x42, 0x6E, 0x46, 0x42, 0x6E, 0x56, 0x42, 0x6E,
+	// Bytes 1a40 - 1a7f
+	0x57, 0x42, 0x6E, 0x6A, 0x42, 0x6E, 0x6D, 0x42,
+	0x6E, 0x73, 0x42, 0x6F, 0x56, 0x42, 0x70, 0x41,
+	0x42, 0x70, 0x46, 0x42, 0x70, 0x56, 0x42, 0x70,
+	0x57, 0x42, 0x70, 0x63, 0x42, 0x70, 0x73, 0x42,
+	0x73, 0x72, 0x42, 0x73, 0x74, 0x42, 0x76, 0x69,
+	0x42, 0x78, 0x69, 0x43, 0x28, 0x31, 0x29, 0x43,
+	0x28, 0x32, 0x29, 0x43, 0x28, 0x33, 0x29, 0x43,
+	0x28, 0x34, 0x29, 0x43, 0x28, 0x35, 0x29, 0x43,
+	// Bytes 1a80 - 1abf
+	0x28, 0x36, 0x29, 0x43, 0x28, 0x37, 0x29, 0x43,
+	0x28, 0x38, 0x29, 0x43, 0x28, 0x39, 0x29, 0x43,
+	0x28, 0x41, 0x29, 0x43, 0x28, 0x42, 0x29, 0x43,
+	0x28, 0x43, 0x29, 0x43, 0x28, 0x44, 0x29, 0x43,
+	0x28, 0x45, 0x29, 0x43, 0x28, 0x46, 0x29, 0x43,
+	0x28, 0x47, 0x29, 0x43, 0x28, 0x48, 0x29, 0x43,
+	0x28, 0x49, 0x29, 0x43, 0x28, 0x4A, 0x29, 0x43,
+	0x28, 0x4B, 0x29, 0x43, 0x28, 0x4C, 0x29, 0x43,
+	// Bytes 1ac0 - 1aff
+	0x28, 0x4D, 0x29, 0x43, 0x28, 0x4E, 0x29, 0x43,
+	0x28, 0x4F, 0x29, 0x43, 0x28, 0x50, 0x29, 0x43,
+	0x28, 0x51, 0x29, 0x43, 0x28, 0x52, 0x29, 0x43,
+	0x28, 0x53, 0x29, 0x43, 0x28, 0x54, 0x29, 0x43,
+	0x28, 0x55, 0x29, 0x43, 0x28, 0x56, 0x29, 0x43,
+	0x28, 0x57, 0x29, 0x43, 0x28, 0x58, 0x29, 0x43,
+	0x28, 0x59, 0x29, 0x43, 0x28, 0x5A, 0x29, 0x43,
+	0x28, 0x61, 0x29, 0x43, 0x28, 0x62, 0x29, 0x43,
+	// Bytes 1b00 - 1b3f
+	0x28, 0x63, 0x29, 0x43, 0x28, 0x64, 0x29, 0x43,
+	0x28, 0x65, 0x29, 0x43, 0x28, 0x66, 0x29, 0x43,
+	0x28, 0x67, 0x29, 0x43, 0x28, 0x68, 0x29, 0x43,
+	0x28, 0x69, 0x29, 0x43, 0x28, 0x6A, 0x29, 0x43,
+	0x28, 0x6B, 0x29, 0x43, 0x28, 0x6C, 0x29, 0x43,
+	0x28, 0x6D, 0x29, 0x43, 0x28, 0x6E, 0x29, 0x43,
+	0x28, 0x6F, 0x29, 0x43, 0x28, 0x70, 0x29, 0x43,
+	0x28, 0x71, 0x29, 0x43, 0x28, 0x72, 0x29, 0x43,
+	// Bytes 1b40 - 1b7f
+	0x28, 0x73, 0x29, 0x43, 0x28, 0x74, 0x29, 0x43,
+	0x28, 0x75, 0x29, 0x43, 0x28, 0x76, 0x29, 0x43,
+	0x28, 0x77, 0x29, 0x43, 0x28, 0x78, 0x29, 0x43,
+	0x28, 0x79, 0x29, 0x43, 0x28, 0x7A, 0x29, 0x43,
+	0x2E, 0x2E, 0x2E, 0x43, 0x31, 0x30, 0x2E, 0x43,
+	0x31, 0x31, 0x2E, 0x43, 0x31, 0x32, 0x2E, 0x43,
+	0x31, 0x33, 0x2E, 0x43, 0x31, 0x34, 0x2E, 0x43,
+	0x31, 0x35, 0x2E, 0x43, 0x31, 0x36, 0x2E, 0x43,
+	// Bytes 1b80 - 1bbf
+	0x31, 0x37, 0x2E, 0x43, 0x31, 0x38, 0x2E, 0x43,
+	0x31, 0x39, 0x2E, 0x43, 0x32, 0x30, 0x2E, 0x43,
+	0x3A, 0x3A, 0x3D, 0x43, 0x3D, 0x3D, 0x3D, 0x43,
+	0x43, 0x6F, 0x2E, 0x43, 0x46, 0x41, 0x58, 0x43,
+	0x47, 0x48, 0x7A, 0x43, 0x47, 0x50, 0x61, 0x43,
+	0x49, 0x49, 0x49, 0x43, 0x4C, 0x54, 0x44, 0x43,
+	0x4C, 0xC2, 0xB7, 0x43, 0x4D, 0x48, 0x7A, 0x43,
+	0x4D, 0x50, 0x61, 0x43, 0x4D, 0xCE, 0xA9, 0x43,
+	// Bytes 1bc0 - 1bff
+	0x50, 0x50, 0x4D, 0x43, 0x50, 0x50, 0x56, 0x43,
+	0x50, 0x54, 0x45, 0x43, 0x54, 0x45, 0x4C, 0x43,
+	0x54, 0x48, 0x7A, 0x43, 0x56, 0x49, 0x49, 0x43,
+	0x58, 0x49, 0x49, 0x43, 0x61, 0x2F, 0x63, 0x43,
+	0x61, 0x2F, 0x73, 0x43, 0x61, 0xCA, 0xBE, 0x43,
+	0x62, 0x61, 0x72, 0x43, 0x63, 0x2F, 0x6F, 0x43,
+	0x63, 0x2F, 0x75, 0x43, 0x63, 0x61, 0x6C, 0x43,
+	0x63, 0x6D, 0x32, 0x43, 0x63, 0x6D, 0x33, 0x43,
+	// Bytes 1c00 - 1c3f
+	0x64, 0x6D, 0x32, 0x43, 0x64, 0x6D, 0x33, 0x43,
+	0x65, 0x72, 0x67, 0x43, 0x66, 0x66, 0x69, 0x43,
+	0x66, 0x66, 0x6C, 0x43, 0x67, 0x61, 0x6C, 0x43,
+	0x68, 0x50, 0x61, 0x43, 0x69, 0x69, 0x69, 0x43,
+	0x6B, 0x48, 0x7A, 0x43, 0x6B, 0x50, 0x61, 0x43,
+	0x6B, 0x6D, 0x32, 0x43, 0x6B, 0x6D, 0x33, 0x43,
+	0x6B, 0xCE, 0xA9, 0x43, 0x6C, 0x6F, 0x67, 0x43,
+	0x6C, 0xC2, 0xB7, 0x43, 0x6D, 0x69, 0x6C, 0x43,
+	// Bytes 1c40 - 1c7f
+	0x6D, 0x6D, 0x32, 0x43, 0x6D, 0x6D, 0x33, 0x43,
+	0x6D, 0x6F, 0x6C, 0x43, 0x72, 0x61, 0x64, 0x43,
+	0x76, 0x69, 0x69, 0x43, 0x78, 0x69, 0x69, 0x43,
+	0xC2, 0xB0, 0x43, 0x43, 0xC2, 0xB0, 0x46, 0x43,
+	0xCA, 0xBC, 0x6E, 0x43, 0xCE, 0xBC, 0x41, 0x43,
+	0xCE, 0xBC, 0x46, 0x43, 0xCE, 0xBC, 0x56, 0x43,
+	0xCE, 0xBC, 0x57, 0x43, 0xCE, 0xBC, 0x67, 0x43,
+	0xCE, 0xBC, 0x6C, 0x43, 0xCE, 0xBC, 0x6D, 0x43,
+	// Bytes 1c80 - 1cbf
+	0xCE, 0xBC, 0x73, 0x44, 0x28, 0x31, 0x30, 0x29,
+	0x44, 0x28, 0x31, 0x31, 0x29, 0x44, 0x28, 0x31,
+	0x32, 0x29, 0x44, 0x28, 0x31, 0x33, 0x29, 0x44,
+	0x28, 0x31, 0x34, 0x29, 0x44, 0x28, 0x31, 0x35,
+	0x29, 0x44, 0x28, 0x31, 0x36, 0x29, 0x44, 0x28,
+	0x31, 0x37, 0x29, 0x44, 0x28, 0x31, 0x38, 0x29,
+	0x44, 0x28, 0x31, 0x39, 0x29, 0x44, 0x28, 0x32,
+	0x30, 0x29, 0x44, 0x30, 0xE7, 0x82, 0xB9, 0x44,
+	// Bytes 1cc0 - 1cff
+	0x31, 0xE2, 0x81, 0x84, 0x44, 0x31, 0xE6, 0x97,
+	0xA5, 0x44, 0x31, 0xE6, 0x9C, 0x88, 0x44, 0x31,
+	0xE7, 0x82, 0xB9, 0x44, 0x32, 0xE6, 0x97, 0xA5,
+	0x44, 0x32, 0xE6, 0x9C, 0x88, 0x44, 0x32, 0xE7,
+	0x82, 0xB9, 0x44, 0x33, 0xE6, 0x97, 0xA5, 0x44,
+	0x33, 0xE6, 0x9C, 0x88, 0x44, 0x33, 0xE7, 0x82,
+	0xB9, 0x44, 0x34, 0xE6, 0x97, 0xA5, 0x44, 0x34,
+	0xE6, 0x9C, 0x88, 0x44, 0x34, 0xE7, 0x82, 0xB9,
+	// Bytes 1d00 - 1d3f
+	0x44, 0x35, 0xE6, 0x97, 0xA5, 0x44, 0x35, 0xE6,
+	0x9C, 0x88, 0x44, 0x35, 0xE7, 0x82, 0xB9, 0x44,
+	0x36, 0xE6, 0x97, 0xA5, 0x44, 0x36, 0xE6, 0x9C,
+	0x88, 0x44, 0x36, 0xE7, 0x82, 0xB9, 0x44, 0x37,
+	0xE6, 0x97, 0xA5, 0x44, 0x37, 0xE6, 0x9C, 0x88,
+	0x44, 0x37, 0xE7, 0x82, 0xB9, 0x44, 0x38, 0xE6,
+	0x97, 0xA5, 0x44, 0x38, 0xE6, 0x9C, 0x88, 0x44,
+	0x38, 0xE7, 0x82, 0xB9, 0x44, 0x39, 0xE6, 0x97,
+	// Bytes 1d40 - 1d7f
+	0xA5, 0x44, 0x39, 0xE6, 0x9C, 0x88, 0x44, 0x39,
+	0xE7, 0x82, 0xB9, 0x44, 0x56, 0x49, 0x49, 0x49,
+	0x44, 0x61, 0x2E, 0x6D, 0x2E, 0x44, 0x6B, 0x63,
+	0x61, 0x6C, 0x44, 0x70, 0x2E, 0x6D, 0x2E, 0x44,
+	0x76, 0x69, 0x69, 0x69, 0x44, 0xD5, 0xA5, 0xD6,
+	0x82, 0x44, 0xD5, 0xB4, 0xD5, 0xA5, 0x44, 0xD5,
+	0xB4, 0xD5, 0xAB, 0x44, 0xD5, 0xB4, 0xD5, 0xAD,
+	0x44, 0xD5, 0xB4, 0xD5, 0xB6, 0x44, 0xD5, 0xBE,
+	// Bytes 1d80 - 1dbf
+	0xD5, 0xB6, 0x44, 0xD7, 0x90, 0xD7, 0x9C, 0x44,
+	0xD8, 0xA7, 0xD9, 0xB4, 0x44, 0xD8, 0xA8, 0xD8,
+	0xAC, 0x44, 0xD8, 0xA8, 0xD8, 0xAD, 0x44, 0xD8,
+	0xA8, 0xD8, 0xAE, 0x44, 0xD8, 0xA8, 0xD8, 0xB1,
+	0x44, 0xD8, 0xA8, 0xD8, 0xB2, 0x44, 0xD8, 0xA8,
+	0xD9, 0x85, 0x44, 0xD8, 0xA8, 0xD9, 0x86, 0x44,
+	0xD8, 0xA8, 0xD9, 0x87, 0x44, 0xD8, 0xA8, 0xD9,
+	0x89, 0x44, 0xD8, 0xA8, 0xD9, 0x8A, 0x44, 0xD8,
+	// Bytes 1dc0 - 1dff
+	0xAA, 0xD8, 0xAC, 0x44, 0xD8, 0xAA, 0xD8, 0xAD,
+	0x44, 0xD8, 0xAA, 0xD8, 0xAE, 0x44, 0xD8, 0xAA,
+	0xD8, 0xB1, 0x44, 0xD8, 0xAA, 0xD8, 0xB2, 0x44,
+	0xD8, 0xAA, 0xD9, 0x85, 0x44, 0xD8, 0xAA, 0xD9,
+	0x86, 0x44, 0xD8, 0xAA, 0xD9, 0x87, 0x44, 0xD8,
+	0xAA, 0xD9, 0x89, 0x44, 0xD8, 0xAA, 0xD9, 0x8A,
+	0x44, 0xD8, 0xAB, 0xD8, 0xAC, 0x44, 0xD8, 0xAB,
+	0xD8, 0xB1, 0x44, 0xD8, 0xAB, 0xD8, 0xB2, 0x44,
+	// Bytes 1e00 - 1e3f
+	0xD8, 0xAB, 0xD9, 0x85, 0x44, 0xD8, 0xAB, 0xD9,
+	0x86, 0x44, 0xD8, 0xAB, 0xD9, 0x87, 0x44, 0xD8,
+	0xAB, 0xD9, 0x89, 0x44, 0xD8, 0xAB, 0xD9, 0x8A,
+	0x44, 0xD8, 0xAC, 0xD8, 0xAD, 0x44, 0xD8, 0xAC,
+	0xD9, 0x85, 0x44, 0xD8, 0xAC, 0xD9, 0x89, 0x44,
+	0xD8, 0xAC, 0xD9, 0x8A, 0x44, 0xD8, 0xAD, 0xD8,
+	0xAC, 0x44, 0xD8, 0xAD, 0xD9, 0x85, 0x44, 0xD8,
+	0xAD, 0xD9, 0x89, 0x44, 0xD8, 0xAD, 0xD9, 0x8A,
+	// Bytes 1e40 - 1e7f
+	0x44, 0xD8, 0xAE, 0xD8, 0xAC, 0x44, 0xD8, 0xAE,
+	0xD8, 0xAD, 0x44, 0xD8, 0xAE, 0xD9, 0x85, 0x44,
+	0xD8, 0xAE, 0xD9, 0x89, 0x44, 0xD8, 0xAE, 0xD9,
+	0x8A, 0x44, 0xD8, 0xB3, 0xD8, 0xAC, 0x44, 0xD8,
+	0xB3, 0xD8, 0xAD, 0x44, 0xD8, 0xB3, 0xD8, 0xAE,
+	0x44, 0xD8, 0xB3, 0xD8, 0xB1, 0x44, 0xD8, 0xB3,
+	0xD9, 0x85, 0x44, 0xD8, 0xB3, 0xD9, 0x87, 0x44,
+	0xD8, 0xB3, 0xD9, 0x89, 0x44, 0xD8, 0xB3, 0xD9,
+	// Bytes 1e80 - 1ebf
+	0x8A, 0x44, 0xD8, 0xB4, 0xD8, 0xAC, 0x44, 0xD8,
+	0xB4, 0xD8, 0xAD, 0x44, 0xD8, 0xB4, 0xD8, 0xAE,
+	0x44, 0xD8, 0xB4, 0xD8, 0xB1, 0x44, 0xD8, 0xB4,
+	0xD9, 0x85, 0x44, 0xD8, 0xB4, 0xD9, 0x87, 0x44,
+	0xD8, 0xB4, 0xD9, 0x89, 0x44, 0xD8, 0xB4, 0xD9,
+	0x8A, 0x44, 0xD8, 0xB5, 0xD8, 0xAD, 0x44, 0xD8,
+	0xB5, 0xD8, 0xAE, 0x44, 0xD8, 0xB5, 0xD8, 0xB1,
+	0x44, 0xD8, 0xB5, 0xD9, 0x85, 0x44, 0xD8, 0xB5,
+	// Bytes 1ec0 - 1eff
+	0xD9, 0x89, 0x44, 0xD8, 0xB5, 0xD9, 0x8A, 0x44,
+	0xD8, 0xB6, 0xD8, 0xAC, 0x44, 0xD8, 0xB6, 0xD8,
+	0xAD, 0x44, 0xD8, 0xB6, 0xD8, 0xAE, 0x44, 0xD8,
+	0xB6, 0xD8, 0xB1, 0x44, 0xD8, 0xB6, 0xD9, 0x85,
+	0x44, 0xD8, 0xB6, 0xD9, 0x89, 0x44, 0xD8, 0xB6,
+	0xD9, 0x8A, 0x44, 0xD8, 0xB7, 0xD8, 0xAD, 0x44,
+	0xD8, 0xB7, 0xD9, 0x85, 0x44, 0xD8, 0xB7, 0xD9,
+	0x89, 0x44, 0xD8, 0xB7, 0xD9, 0x8A, 0x44, 0xD8,
+	// Bytes 1f00 - 1f3f
+	0xB8, 0xD9, 0x85, 0x44, 0xD8, 0xB9, 0xD8, 0xAC,
+	0x44, 0xD8, 0xB9, 0xD9, 0x85, 0x44, 0xD8, 0xB9,
+	0xD9, 0x89, 0x44, 0xD8, 0xB9, 0xD9, 0x8A, 0x44,
+	0xD8, 0xBA, 0xD8, 0xAC, 0x44, 0xD8, 0xBA, 0xD9,
+	0x85, 0x44, 0xD8, 0xBA, 0xD9, 0x89, 0x44, 0xD8,
+	0xBA, 0xD9, 0x8A, 0x44, 0xD9, 0x81, 0xD8, 0xAC,
+	0x44, 0xD9, 0x81, 0xD8, 0xAD, 0x44, 0xD9, 0x81,
+	0xD8, 0xAE, 0x44, 0xD9, 0x81, 0xD9, 0x85, 0x44,
+	// Bytes 1f40 - 1f7f
+	0xD9, 0x81, 0xD9, 0x89, 0x44, 0xD9, 0x81, 0xD9,
+	0x8A, 0x44, 0xD9, 0x82, 0xD8, 0xAD, 0x44, 0xD9,
+	0x82, 0xD9, 0x85, 0x44, 0xD9, 0x82, 0xD9, 0x89,
+	0x44, 0xD9, 0x82, 0xD9, 0x8A, 0x44, 0xD9, 0x83,
+	0xD8, 0xA7, 0x44, 0xD9, 0x83, 0xD8, 0xAC, 0x44,
+	0xD9, 0x83, 0xD8, 0xAD, 0x44, 0xD9, 0x83, 0xD8,
+	0xAE, 0x44, 0xD9, 0x83, 0xD9, 0x84, 0x44, 0xD9,
+	0x83, 0xD9, 0x85, 0x44, 0xD9, 0x83, 0xD9, 0x89,
+	// Bytes 1f80 - 1fbf
+	0x44, 0xD9, 0x83, 0xD9, 0x8A, 0x44, 0xD9, 0x84,
+	0xD8, 0xA7, 0x44, 0xD9, 0x84, 0xD8, 0xAC, 0x44,
+	0xD9, 0x84, 0xD8, 0xAD, 0x44, 0xD9, 0x84, 0xD8,
+	0xAE, 0x44, 0xD9, 0x84, 0xD9, 0x85, 0x44, 0xD9,
+	0x84, 0xD9, 0x87, 0x44, 0xD9, 0x84, 0xD9, 0x89,
+	0x44, 0xD9, 0x84, 0xD9, 0x8A, 0x44, 0xD9, 0x85,
+	0xD8, 0xA7, 0x44, 0xD9, 0x85, 0xD8, 0xAC, 0x44,
+	0xD9, 0x85, 0xD8, 0xAD, 0x44, 0xD9, 0x85, 0xD8,
+	// Bytes 1fc0 - 1fff
+	0xAE, 0x44, 0xD9, 0x85, 0xD9, 0x85, 0x44, 0xD9,
+	0x85, 0xD9, 0x89, 0x44, 0xD9, 0x85, 0xD9, 0x8A,
+	0x44, 0xD9, 0x86, 0xD8, 0xAC, 0x44, 0xD9, 0x86,
+	0xD8, 0xAD, 0x44, 0xD9, 0x86, 0xD8, 0xAE, 0x44,
+	0xD9, 0x86, 0xD8, 0xB1, 0x44, 0xD9, 0x86, 0xD8,
+	0xB2, 0x44, 0xD9, 0x86, 0xD9, 0x85, 0x44, 0xD9,
+	0x86, 0xD9, 0x86, 0x44, 0xD9, 0x86, 0xD9, 0x87,
+	0x44, 0xD9, 0x86, 0xD9, 0x89, 0x44, 0xD9, 0x86,
+	// Bytes 2000 - 203f
+	0xD9, 0x8A, 0x44, 0xD9, 0x87, 0xD8, 0xAC, 0x44,
+	0xD9, 0x87, 0xD9, 0x85, 0x44, 0xD9, 0x87, 0xD9,
+	0x89, 0x44, 0xD9, 0x87, 0xD9, 0x8A, 0x44, 0xD9,
+	0x88, 0xD9, 0xB4, 0x44, 0xD9, 0x8A, 0xD8, 0xAC,
+	0x44, 0xD9, 0x8A, 0xD8, 0xAD, 0x44, 0xD9, 0x8A,
+	0xD8, 0xAE, 0x44, 0xD9, 0x8A, 0xD8, 0xB1, 0x44,
+	0xD9, 0x8A, 0xD8, 0xB2, 0x44, 0xD9, 0x8A, 0xD9,
+	0x85, 0x44, 0xD9, 0x8A, 0xD9, 0x86, 0x44, 0xD9,
+	// Bytes 2040 - 207f
+	0x8A, 0xD9, 0x87, 0x44, 0xD9, 0x8A, 0xD9, 0x89,
+	0x44, 0xD9, 0x8A, 0xD9, 0x8A, 0x44, 0xD9, 0x8A,
+	0xD9, 0xB4, 0x44, 0xDB, 0x87, 0xD9, 0xB4, 0x45,
+	0x28, 0xE1, 0x84, 0x80, 0x29, 0x45, 0x28, 0xE1,
+	0x84, 0x82, 0x29, 0x45, 0x28, 0xE1, 0x84, 0x83,
+	0x29, 0x45, 0x28, 0xE1, 0x84, 0x85, 0x29, 0x45,
+	0x28, 0xE1, 0x84, 0x86, 0x29, 0x45, 0x28, 0xE1,
+	0x84, 0x87, 0x29, 0x45, 0x28, 0xE1, 0x84, 0x89,
+	// Bytes 2080 - 20bf
+	0x29, 0x45, 0x28, 0xE1, 0x84, 0x8B, 0x29, 0x45,
+	0x28, 0xE1, 0x84, 0x8C, 0x29, 0x45, 0x28, 0xE1,
+	0x84, 0x8E, 0x29, 0x45, 0x28, 0xE1, 0x84, 0x8F,
+	0x29, 0x45, 0x28, 0xE1, 0x84, 0x90, 0x29, 0x45,
+	0x28, 0xE1, 0x84, 0x91, 0x29, 0x45, 0x28, 0xE1,
+	0x84, 0x92, 0x29, 0x45, 0x28, 0xE4, 0xB8, 0x80,
+	0x29, 0x45, 0x28, 0xE4, 0xB8, 0x83, 0x29, 0x45,
+	0x28, 0xE4, 0xB8, 0x89, 0x29, 0x45, 0x28, 0xE4,
+	// Bytes 20c0 - 20ff
+	0xB9, 0x9D, 0x29, 0x45, 0x28, 0xE4, 0xBA, 0x8C,
+	0x29, 0x45, 0x28, 0xE4, 0xBA, 0x94, 0x29, 0x45,
+	0x28, 0xE4, 0xBB, 0xA3, 0x29, 0x45, 0x28, 0xE4,
+	0xBC, 0x81, 0x29, 0x45, 0x28, 0xE4, 0xBC, 0x91,
+	0x29, 0x45, 0x28, 0xE5, 0x85, 0xAB, 0x29, 0x45,
+	0x28, 0xE5, 0x85, 0xAD, 0x29, 0x45, 0x28, 0xE5,
+	0x8A, 0xB4, 0x29, 0x45, 0x28, 0xE5, 0x8D, 0x81,
+	0x29, 0x45, 0x28, 0xE5, 0x8D, 0x94, 0x29, 0x45,
+	// Bytes 2100 - 213f
+	0x28, 0xE5, 0x90, 0x8D, 0x29, 0x45, 0x28, 0xE5,
+	0x91, 0xBC, 0x29, 0x45, 0x28, 0xE5, 0x9B, 0x9B,
+	0x29, 0x45, 0x28, 0xE5, 0x9C, 0x9F, 0x29, 0x45,
+	0x28, 0xE5, 0xAD, 0xA6, 0x29, 0x45, 0x28, 0xE6,
+	0x97, 0xA5, 0x29, 0x45, 0x28, 0xE6, 0x9C, 0x88,
+	0x29, 0x45, 0x28, 0xE6, 0x9C, 0x89, 0x29, 0x45,
+	0x28, 0xE6, 0x9C, 0xA8, 0x29, 0x45, 0x28, 0xE6,
+	0xA0, 0xAA, 0x29, 0x45, 0x28, 0xE6, 0xB0, 0xB4,
+	// Bytes 2140 - 217f
+	0x29, 0x45, 0x28, 0xE7, 0x81, 0xAB, 0x29, 0x45,
+	0x28, 0xE7, 0x89, 0xB9, 0x29, 0x45, 0x28, 0xE7,
+	0x9B, 0xA3, 0x29, 0x45, 0x28, 0xE7, 0xA4, 0xBE,
+	0x29, 0x45, 0x28, 0xE7, 0xA5, 0x9D, 0x29, 0x45,
+	0x28, 0xE7, 0xA5, 0xAD, 0x29, 0x45, 0x28, 0xE8,
+	0x87, 0xAA, 0x29, 0x45, 0x28, 0xE8, 0x87, 0xB3,
+	0x29, 0x45, 0x28, 0xE8, 0xB2, 0xA1, 0x29, 0x45,
+	0x28, 0xE8, 0xB3, 0x87, 0x29, 0x45, 0x28, 0xE9,
+	// Bytes 2180 - 21bf
+	0x87, 0x91, 0x29, 0x45, 0x30, 0xE2, 0x81, 0x84,
+	0x33, 0x45, 0x31, 0x30, 0xE6, 0x97, 0xA5, 0x45,
+	0x31, 0x30, 0xE6, 0x9C, 0x88, 0x45, 0x31, 0x30,
+	0xE7, 0x82, 0xB9, 0x45, 0x31, 0x31, 0xE6, 0x97,
+	0xA5, 0x45, 0x31, 0x31, 0xE6, 0x9C, 0x88, 0x45,
+	0x31, 0x31, 0xE7, 0x82, 0xB9, 0x45, 0x31, 0x32,
+	0xE6, 0x97, 0xA5, 0x45, 0x31, 0x32, 0xE6, 0x9C,
+	0x88, 0x45, 0x31, 0x32, 0xE7, 0x82, 0xB9, 0x45,
+	// Bytes 21c0 - 21ff
+	0x31, 0x33, 0xE6, 0x97, 0xA5, 0x45, 0x31, 0x33,
+	0xE7, 0x82, 0xB9, 0x45, 0x31, 0x34, 0xE6, 0x97,
+	0xA5, 0x45, 0x31, 0x34, 0xE7, 0x82, 0xB9, 0x45,
+	0x31, 0x35, 0xE6, 0x97, 0xA5, 0x45, 0x31, 0x35,
+	0xE7, 0x82, 0xB9, 0x45, 0x31, 0x36, 0xE6, 0x97,
+	0xA5, 0x45, 0x31, 0x36, 0xE7, 0x82, 0xB9, 0x45,
+	0x31, 0x37, 0xE6, 0x97, 0xA5, 0x45, 0x31, 0x37,
+	0xE7, 0x82, 0xB9, 0x45, 0x31, 0x38, 0xE6, 0x97,
+	// Bytes 2200 - 223f
+	0xA5, 0x45, 0x31, 0x38, 0xE7, 0x82, 0xB9, 0x45,
+	0x31, 0x39, 0xE6, 0x97, 0xA5, 0x45, 0x31, 0x39,
+	0xE7, 0x82, 0xB9, 0x45, 0x31, 0xE2, 0x81, 0x84,
+	0x32, 0x45, 0x31, 0xE2, 0x81, 0x84, 0x33, 0x45,
+	0x31, 0xE2, 0x81, 0x84, 0x34, 0x45, 0x31, 0xE2,
+	0x81, 0x84, 0x35, 0x45, 0x31, 0xE2, 0x81, 0x84,
+	0x36, 0x45, 0x31, 0xE2, 0x81, 0x84, 0x37, 0x45,
+	0x31, 0xE2, 0x81, 0x84, 0x38, 0x45, 0x31, 0xE2,
+	// Bytes 2240 - 227f
+	0x81, 0x84, 0x39, 0x45, 0x32, 0x30, 0xE6, 0x97,
+	0xA5, 0x45, 0x32, 0x30, 0xE7, 0x82, 0xB9, 0x45,
+	0x32, 0x31, 0xE6, 0x97, 0xA5, 0x45, 0x32, 0x31,
+	0xE7, 0x82, 0xB9, 0x45, 0x32, 0x32, 0xE6, 0x97,
+	0xA5, 0x45, 0x32, 0x32, 0xE7, 0x82, 0xB9, 0x45,
+	0x32, 0x33, 0xE6, 0x97, 0xA5, 0x45, 0x32, 0x33,
+	0xE7, 0x82, 0xB9, 0x45, 0x32, 0x34, 0xE6, 0x97,
+	0xA5, 0x45, 0x32, 0x34, 0xE7, 0x82, 0xB9, 0x45,
+	// Bytes 2280 - 22bf
+	0x32, 0x35, 0xE6, 0x97, 0xA5, 0x45, 0x32, 0x36,
+	0xE6, 0x97, 0xA5, 0x45, 0x32, 0x37, 0xE6, 0x97,
+	0xA5, 0x45, 0x32, 0x38, 0xE6, 0x97, 0xA5, 0x45,
+	0x32, 0x39, 0xE6, 0x97, 0xA5, 0x45, 0x32, 0xE2,
+	0x81, 0x84, 0x33, 0x45, 0x32, 0xE2, 0x81, 0x84,
+	0x35, 0x45, 0x33, 0x30, 0xE6, 0x97, 0xA5, 0x45,
+	0x33, 0x31, 0xE6, 0x97, 0xA5, 0x45, 0x33, 0xE2,
+	0x81, 0x84, 0x34, 0x45, 0x33, 0xE2, 0x81, 0x84,
+	// Bytes 22c0 - 22ff
+	0x35, 0x45, 0x33, 0xE2, 0x81, 0x84, 0x38, 0x45,
+	0x34, 0xE2, 0x81, 0x84, 0x35, 0x45, 0x35, 0xE2,
+	0x81, 0x84, 0x36, 0x45, 0x35, 0xE2, 0x81, 0x84,
+	0x38, 0x45, 0x37, 0xE2, 0x81, 0x84, 0x38, 0x45,
+	0x41, 0xE2, 0x88, 0x95, 0x6D, 0x45, 0x56, 0xE2,
+	0x88, 0x95, 0x6D, 0x45, 0x6D, 0xE2, 0x88, 0x95,
+	0x73, 0x46, 0x31, 0xE2, 0x81, 0x84, 0x31, 0x30,
+	0x46, 0x43, 0xE2, 0x88, 0x95, 0x6B, 0x67, 0x46,
+	// Bytes 2300 - 233f
+	0x6D, 0xE2, 0x88, 0x95, 0x73, 0x32, 0x46, 0xD8,
+	0xA8, 0xD8, 0xAD, 0xD9, 0x8A, 0x46, 0xD8, 0xA8,
+	0xD8, 0xAE, 0xD9, 0x8A, 0x46, 0xD8, 0xAA, 0xD8,
+	0xAC, 0xD9, 0x85, 0x46, 0xD8, 0xAA, 0xD8, 0xAC,
+	0xD9, 0x89, 0x46, 0xD8, 0xAA, 0xD8, 0xAC, 0xD9,
+	0x8A, 0x46, 0xD8, 0xAA, 0xD8, 0xAD, 0xD8, 0xAC,
+	0x46, 0xD8, 0xAA, 0xD8, 0xAD, 0xD9, 0x85, 0x46,
+	0xD8, 0xAA, 0xD8, 0xAE, 0xD9, 0x85, 0x46, 0xD8,
+	// Bytes 2340 - 237f
+	0xAA, 0xD8, 0xAE, 0xD9, 0x89, 0x46, 0xD8, 0xAA,
+	0xD8, 0xAE, 0xD9, 0x8A, 0x46, 0xD8, 0xAA, 0xD9,
+	0x85, 0xD8, 0xAC, 0x46, 0xD8, 0xAA, 0xD9, 0x85,
+	0xD8, 0xAD, 0x46, 0xD8, 0xAA, 0xD9, 0x85, 0xD8,
+	0xAE, 0x46, 0xD8, 0xAA, 0xD9, 0x85, 0xD9, 0x89,
+	0x46, 0xD8, 0xAA, 0xD9, 0x85, 0xD9, 0x8A, 0x46,
+	0xD8, 0xAC, 0xD8, 0xAD, 0xD9, 0x89, 0x46, 0xD8,
+	0xAC, 0xD8, 0xAD, 0xD9, 0x8A, 0x46, 0xD8, 0xAC,
+	// Bytes 2380 - 23bf
+	0xD9, 0x85, 0xD8, 0xAD, 0x46, 0xD8, 0xAC, 0xD9,
+	0x85, 0xD9, 0x89, 0x46, 0xD8, 0xAC, 0xD9, 0x85,
+	0xD9, 0x8A, 0x46, 0xD8, 0xAD, 0xD8, 0xAC, 0xD9,
+	0x8A, 0x46, 0xD8, 0xAD, 0xD9, 0x85, 0xD9, 0x89,
+	0x46, 0xD8, 0xAD, 0xD9, 0x85, 0xD9, 0x8A, 0x46,
+	0xD8, 0xB3, 0xD8, 0xAC, 0xD8, 0xAD, 0x46, 0xD8,
+	0xB3, 0xD8, 0xAC, 0xD9, 0x89, 0x46, 0xD8, 0xB3,
+	0xD8, 0xAD, 0xD8, 0xAC, 0x46, 0xD8, 0xB3, 0xD8,
+	// Bytes 23c0 - 23ff
+	0xAE, 0xD9, 0x89, 0x46, 0xD8, 0xB3, 0xD8, 0xAE,
+	0xD9, 0x8A, 0x46, 0xD8, 0xB3, 0xD9, 0x85, 0xD8,
+	0xAC, 0x46, 0xD8, 0xB3, 0xD9, 0x85, 0xD8, 0xAD,
+	0x46, 0xD8, 0xB3, 0xD9, 0x85, 0xD9, 0x85, 0x46,
+	0xD8, 0xB4, 0xD8, 0xAC, 0xD9, 0x8A, 0x46, 0xD8,
+	0xB4, 0xD8, 0xAD, 0xD9, 0x85, 0x46, 0xD8, 0xB4,
+	0xD8, 0xAD, 0xD9, 0x8A, 0x46, 0xD8, 0xB4, 0xD9,
+	0x85, 0xD8, 0xAE, 0x46, 0xD8, 0xB4, 0xD9, 0x85,
+	// Bytes 2400 - 243f
+	0xD9, 0x85, 0x46, 0xD8, 0xB5, 0xD8, 0xAD, 0xD8,
+	0xAD, 0x46, 0xD8, 0xB5, 0xD8, 0xAD, 0xD9, 0x8A,
+	0x46, 0xD8, 0xB5, 0xD9, 0x84, 0xD9, 0x89, 0x46,
+	0xD8, 0xB5, 0xD9, 0x84, 0xDB, 0x92, 0x46, 0xD8,
+	0xB5, 0xD9, 0x85, 0xD9, 0x85, 0x46, 0xD8, 0xB6,
+	0xD8, 0xAD, 0xD9, 0x89, 0x46, 0xD8, 0xB6, 0xD8,
+	0xAD, 0xD9, 0x8A, 0x46, 0xD8, 0xB6, 0xD8, 0xAE,
+	0xD9, 0x85, 0x46, 0xD8, 0xB7, 0xD9, 0x85, 0xD8,
+	// Bytes 2440 - 247f
+	0xAD, 0x46, 0xD8, 0xB7, 0xD9, 0x85, 0xD9, 0x85,
+	0x46, 0xD8, 0xB7, 0xD9, 0x85, 0xD9, 0x8A, 0x46,
+	0xD8, 0xB9, 0xD8, 0xAC, 0xD9, 0x85, 0x46, 0xD8,
+	0xB9, 0xD9, 0x85, 0xD9, 0x85, 0x46, 0xD8, 0xB9,
+	0xD9, 0x85, 0xD9, 0x89, 0x46, 0xD8, 0xB9, 0xD9,
+	0x85, 0xD9, 0x8A, 0x46, 0xD8, 0xBA, 0xD9, 0x85,
+	0xD9, 0x85, 0x46, 0xD8, 0xBA, 0xD9, 0x85, 0xD9,
+	0x89, 0x46, 0xD8, 0xBA, 0xD9, 0x85, 0xD9, 0x8A,
+	// Bytes 2480 - 24bf
+	0x46, 0xD9, 0x81, 0xD8, 0xAE, 0xD9, 0x85, 0x46,
+	0xD9, 0x81, 0xD9, 0x85, 0xD9, 0x8A, 0x46, 0xD9,
+	0x82, 0xD9, 0x84, 0xDB, 0x92, 0x46, 0xD9, 0x82,
+	0xD9, 0x85, 0xD8, 0xAD, 0x46, 0xD9, 0x82, 0xD9,
+	0x85, 0xD9, 0x85, 0x46, 0xD9, 0x82, 0xD9, 0x85,
+	0xD9, 0x8A, 0x46, 0xD9, 0x83, 0xD9, 0x85, 0xD9,
+	0x85, 0x46, 0xD9, 0x83, 0xD9, 0x85, 0xD9, 0x8A,
+	0x46, 0xD9, 0x84, 0xD8, 0xAC, 0xD8, 0xAC, 0x46,
+	// Bytes 24c0 - 24ff
+	0xD9, 0x84, 0xD8, 0xAC, 0xD9, 0x85, 0x46, 0xD9,
+	0x84, 0xD8, 0xAC, 0xD9, 0x8A, 0x46, 0xD9, 0x84,
+	0xD8, 0xAD, 0xD9, 0x85, 0x46, 0xD9, 0x84, 0xD8,
+	0xAD, 0xD9, 0x89, 0x46, 0xD9, 0x84, 0xD8, 0xAD,
+	0xD9, 0x8A, 0x46, 0xD9, 0x84, 0xD8, 0xAE, 0xD9,
+	0x85, 0x46, 0xD9, 0x84, 0xD9, 0x85, 0xD8, 0xAD,
+	0x46, 0xD9, 0x84, 0xD9, 0x85, 0xD9, 0x8A, 0x46,
+	0xD9, 0x85, 0xD8, 0xAC, 0xD8, 0xAD, 0x46, 0xD9,
+	// Bytes 2500 - 253f
+	0x85, 0xD8, 0xAC, 0xD8, 0xAE, 0x46, 0xD9, 0x85,
+	0xD8, 0xAC, 0xD9, 0x85, 0x46, 0xD9, 0x85, 0xD8,
+	0xAC, 0xD9, 0x8A, 0x46, 0xD9, 0x85, 0xD8, 0xAD,
+	0xD8, 0xAC, 0x46, 0xD9, 0x85, 0xD8, 0xAD, 0xD9,
+	0x85, 0x46, 0xD9, 0x85, 0xD8, 0xAD, 0xD9, 0x8A,
+	0x46, 0xD9, 0x85, 0xD8, 0xAE, 0xD8, 0xAC, 0x46,
+	0xD9, 0x85, 0xD8, 0xAE, 0xD9, 0x85, 0x46, 0xD9,
+	0x85, 0xD8, 0xAE, 0xD9, 0x8A, 0x46, 0xD9, 0x85,
+	// Bytes 2540 - 257f
+	0xD9, 0x85, 0xD9, 0x8A, 0x46, 0xD9, 0x86, 0xD8,
+	0xAC, 0xD8, 0xAD, 0x46, 0xD9, 0x86, 0xD8, 0xAC,
+	0xD9, 0x85, 0x46, 0xD9, 0x86, 0xD8, 0xAC, 0xD9,
+	0x89, 0x46, 0xD9, 0x86, 0xD8, 0xAC, 0xD9, 0x8A,
+	0x46, 0xD9, 0x86, 0xD8, 0xAD, 0xD9, 0x85, 0x46,
+	0xD9, 0x86, 0xD8, 0xAD, 0xD9, 0x89, 0x46, 0xD9,
+	0x86, 0xD8, 0xAD, 0xD9, 0x8A, 0x46, 0xD9, 0x86,
+	0xD9, 0x85, 0xD9, 0x89, 0x46, 0xD9, 0x86, 0xD9,
+	// Bytes 2580 - 25bf
+	0x85, 0xD9, 0x8A, 0x46, 0xD9, 0x87, 0xD9, 0x85,
+	0xD8, 0xAC, 0x46, 0xD9, 0x87, 0xD9, 0x85, 0xD9,
+	0x85, 0x46, 0xD9, 0x8A, 0xD8, 0xAC, 0xD9, 0x8A,
+	0x46, 0xD9, 0x8A, 0xD8, 0xAD, 0xD9, 0x8A, 0x46,
+	0xD9, 0x8A, 0xD9, 0x85, 0xD9, 0x85, 0x46, 0xD9,
+	0x8A, 0xD9, 0x85, 0xD9, 0x8A, 0x46, 0xD9, 0x8A,
+	0xD9, 0x94, 0xD8, 0xA7, 0x46, 0xD9, 0x8A, 0xD9,
+	0x94, 0xD8, 0xAC, 0x46, 0xD9, 0x8A, 0xD9, 0x94,
+	// Bytes 25c0 - 25ff
+	0xD8, 0xAD, 0x46, 0xD9, 0x8A, 0xD9, 0x94, 0xD8,
+	0xAE, 0x46, 0xD9, 0x8A, 0xD9, 0x94, 0xD8, 0xB1,
+	0x46, 0xD9, 0x8A, 0xD9, 0x94, 0xD8, 0xB2, 0x46,
+	0xD9, 0x8A, 0xD9, 0x94, 0xD9, 0x85, 0x46, 0xD9,
+	0x8A, 0xD9, 0x94, 0xD9, 0x86, 0x46, 0xD9, 0x8A,
+	0xD9, 0x94, 0xD9, 0x87, 0x46, 0xD9, 0x8A, 0xD9,
+	0x94, 0xD9, 0x88, 0x46, 0xD9, 0x8A, 0xD9, 0x94,
+	0xD9, 0x89, 0x46, 0xD9, 0x8A, 0xD9, 0x94, 0xD9,
+	// Bytes 2600 - 263f
+	0x8A, 0x46, 0xD9, 0x8A, 0xD9, 0x94, 0xDB, 0x86,
+	0x46, 0xD9, 0x8A, 0xD9, 0x94, 0xDB, 0x87, 0x46,
+	0xD9, 0x8A, 0xD9, 0x94, 0xDB, 0x88, 0x46, 0xD9,
+	0x8A, 0xD9, 0x94, 0xDB, 0x90, 0x46, 0xD9, 0x8A,
+	0xD9, 0x94, 0xDB, 0x95, 0x46, 0xE0, 0xB9, 0x8D,
+	0xE0, 0xB8, 0xB2, 0x46, 0xE0, 0xBA, 0xAB, 0xE0,
+	0xBA, 0x99, 0x46, 0xE0, 0xBA, 0xAB, 0xE0, 0xBA,
+	0xA1, 0x46, 0xE0, 0xBB, 0x8D, 0xE0, 0xBA, 0xB2,
+	// Bytes 2640 - 267f
+	0x46, 0xE0, 0xBD, 0x80, 0xE0, 0xBE, 0xB5, 0x46,
+	0xE0, 0xBD, 0x82, 0xE0, 0xBE, 0xB7, 0x46, 0xE0,
+	0xBD, 0x8C, 0xE0, 0xBE, 0xB7, 0x46, 0xE0, 0xBD,
+	0x91, 0xE0, 0xBE, 0xB7, 0x46, 0xE0, 0xBD, 0x96,
+	0xE0, 0xBE, 0xB7, 0x46, 0xE0, 0xBD, 0x9B, 0xE0,
+	0xBE, 0xB7, 0x46, 0xE0, 0xBE, 0x90, 0xE0, 0xBE,
+	0xB5, 0x46, 0xE0, 0xBE, 0x92, 0xE0, 0xBE, 0xB7,
+	0x46, 0xE0, 0xBE, 0x9C, 0xE0, 0xBE, 0xB7, 0x46,
+	// Bytes 2680 - 26bf
+	0xE0, 0xBE, 0xA1, 0xE0, 0xBE, 0xB7, 0x46, 0xE0,
+	0xBE, 0xA6, 0xE0, 0xBE, 0xB7, 0x46, 0xE0, 0xBE,
+	0xAB, 0xE0, 0xBE, 0xB7, 0x46, 0xE2, 0x80, 0xB2,
+	0xE2, 0x80, 0xB2, 0x46, 0xE2, 0x80, 0xB5, 0xE2,
+	0x80, 0xB5, 0x46, 0xE2, 0x88, 0xAB, 0xE2, 0x88,
+	0xAB, 0x46, 0xE2, 0x88, 0xAE, 0xE2, 0x88, 0xAE,
+	0x46, 0xE3, 0x81, 0xBB, 0xE3, 0x81, 0x8B, 0x46,
+	0xE3, 0x82, 0x88, 0xE3, 0x82, 0x8A, 0x46, 0xE3,
+	// Bytes 26c0 - 26ff
+	0x82, 0xAD, 0xE3, 0x83, 0xAD, 0x46, 0xE3, 0x82,
+	0xB3, 0xE3, 0x82, 0xB3, 0x46, 0xE3, 0x82, 0xB3,
+	0xE3, 0x83, 0x88, 0x46, 0xE3, 0x83, 0x88, 0xE3,
+	0x83, 0xB3, 0x46, 0xE3, 0x83, 0x8A, 0xE3, 0x83,
+	0x8E, 0x46, 0xE3, 0x83, 0x9B, 0xE3, 0x83, 0xB3,
+	0x46, 0xE3, 0x83, 0x9F, 0xE3, 0x83, 0xAA, 0x46,
+	0xE3, 0x83, 0xAA, 0xE3, 0x83, 0xA9, 0x46, 0xE3,
+	0x83, 0xAC, 0xE3, 0x83, 0xA0, 0x46, 0xE5, 0xA4,
+	// Bytes 2700 - 273f
+	0xA7, 0xE6, 0xAD, 0xA3, 0x46, 0xE5, 0xB9, 0xB3,
+	0xE6, 0x88, 0x90, 0x46, 0xE6, 0x98, 0x8E, 0xE6,
+	0xB2, 0xBB, 0x46, 0xE6, 0x98, 0xAD, 0xE5, 0x92,
+	0x8C, 0x47, 0x72, 0x61, 0x64, 0xE2, 0x88, 0x95,
+	0x73, 0x47, 0xE3, 0x80, 0x94, 0x53, 0xE3, 0x80,
+	0x95, 0x48, 0x28, 0xE1, 0x84, 0x80, 0xE1, 0x85,
+	0xA1, 0x29, 0x48, 0x28, 0xE1, 0x84, 0x82, 0xE1,
+	0x85, 0xA1, 0x29, 0x48, 0x28, 0xE1, 0x84, 0x83,
+	// Bytes 2740 - 277f
+	0xE1, 0x85, 0xA1, 0x29, 0x48, 0x28, 0xE1, 0x84,
+	0x85, 0xE1, 0x85, 0xA1, 0x29, 0x48, 0x28, 0xE1,
+	0x84, 0x86, 0xE1, 0x85, 0xA1, 0x29, 0x48, 0x28,
+	0xE1, 0x84, 0x87, 0xE1, 0x85, 0xA1, 0x29, 0x48,
+	0x28, 0xE1, 0x84, 0x89, 0xE1, 0x85, 0xA1, 0x29,
+	0x48, 0x28, 0xE1, 0x84, 0x8B, 0xE1, 0x85, 0xA1,
+	0x29, 0x48, 0x28, 0xE1, 0x84, 0x8C, 0xE1, 0x85,
+	0xA1, 0x29, 0x48, 0x28, 0xE1, 0x84, 0x8C, 0xE1,
+	// Bytes 2780 - 27bf
+	0x85, 0xAE, 0x29, 0x48, 0x28, 0xE1, 0x84, 0x8E,
+	0xE1, 0x85, 0xA1, 0x29, 0x48, 0x28, 0xE1, 0x84,
+	0x8F, 0xE1, 0x85, 0xA1, 0x29, 0x48, 0x28, 0xE1,
+	0x84, 0x90, 0xE1, 0x85, 0xA1, 0x29, 0x48, 0x28,
+	0xE1, 0x84, 0x91, 0xE1, 0x85, 0xA1, 0x29, 0x48,
+	0x28, 0xE1, 0x84, 0x92, 0xE1, 0x85, 0xA1, 0x29,
+	0x48, 0x72, 0x61, 0x64, 0xE2, 0x88, 0x95, 0x73,
+	0x32, 0x48, 0xD8, 0xA7, 0xD9, 0x83, 0xD8, 0xA8,
+	// Bytes 27c0 - 27ff
+	0xD8, 0xB1, 0x48, 0xD8, 0xA7, 0xD9, 0x84, 0xD9,
+	0x84, 0xD9, 0x87, 0x48, 0xD8, 0xB1, 0xD8, 0xB3,
+	0xD9, 0x88, 0xD9, 0x84, 0x48, 0xD8, 0xB1, 0xDB,
+	0x8C, 0xD8, 0xA7, 0xD9, 0x84, 0x48, 0xD8, 0xB5,
+	0xD9, 0x84, 0xD8, 0xB9, 0xD9, 0x85, 0x48, 0xD8,
+	0xB9, 0xD9, 0x84, 0xD9, 0x8A, 0xD9, 0x87, 0x48,
+	0xD9, 0x85, 0xD8, 0xAD, 0xD9, 0x85, 0xD8, 0xAF,
+	0x48, 0xD9, 0x88, 0xD8, 0xB3, 0xD9, 0x84, 0xD9,
+	// Bytes 2800 - 283f
+	0x85, 0x49, 0xE2, 0x80, 0xB2, 0xE2, 0x80, 0xB2,
+	0xE2, 0x80, 0xB2, 0x49, 0xE2, 0x80, 0xB5, 0xE2,
+	0x80, 0xB5, 0xE2, 0x80, 0xB5, 0x49, 0xE2, 0x88,
+	0xAB, 0xE2, 0x88, 0xAB, 0xE2, 0x88, 0xAB, 0x49,
+	0xE2, 0x88, 0xAE, 0xE2, 0x88, 0xAE, 0xE2, 0x88,
+	0xAE, 0x49, 0xE3, 0x80, 0x94, 0xE4, 0xB8, 0x89,
+	0xE3, 0x80, 0x95, 0x49, 0xE3, 0x80, 0x94, 0xE4,
+	0xBA, 0x8C, 0xE3, 0x80, 0x95, 0x49, 0xE3, 0x80,
+	// Bytes 2840 - 287f
+	0x94, 0xE5, 0x8B, 0x9D, 0xE3, 0x80, 0x95, 0x49,
+	0xE3, 0x80, 0x94, 0xE5, 0xAE, 0x89, 0xE3, 0x80,
+	0x95, 0x49, 0xE3, 0x80, 0x94, 0xE6, 0x89, 0x93,
+	0xE3, 0x80, 0x95, 0x49, 0xE3, 0x80, 0x94, 0xE6,
+	0x95, 0x97, 0xE3, 0x80, 0x95, 0x49, 0xE3, 0x80,
+	0x94, 0xE6, 0x9C, 0xAC, 0xE3, 0x80, 0x95, 0x49,
+	0xE3, 0x80, 0x94, 0xE7, 0x82, 0xB9, 0xE3, 0x80,
+	0x95, 0x49, 0xE3, 0x80, 0x94, 0xE7, 0x9B, 0x97,
+	// Bytes 2880 - 28bf
+	0xE3, 0x80, 0x95, 0x49, 0xE3, 0x82, 0xA2, 0xE3,
+	0x83, 0xBC, 0xE3, 0x83, 0xAB, 0x49, 0xE3, 0x82,
+	0xA4, 0xE3, 0x83, 0xB3, 0xE3, 0x83, 0x81, 0x49,
+	0xE3, 0x82, 0xA6, 0xE3, 0x82, 0xA9, 0xE3, 0x83,
+	0xB3, 0x49, 0xE3, 0x82, 0xAA, 0xE3, 0x83, 0xB3,
+	0xE3, 0x82, 0xB9, 0x49, 0xE3, 0x82, 0xAA, 0xE3,
+	0x83, 0xBC, 0xE3, 0x83, 0xA0, 0x49, 0xE3, 0x82,
+	0xAB, 0xE3, 0x82, 0xA4, 0xE3, 0x83, 0xAA, 0x49,
+	// Bytes 28c0 - 28ff
+	0xE3, 0x82, 0xB1, 0xE3, 0x83, 0xBC, 0xE3, 0x82,
+	0xB9, 0x49, 0xE3, 0x82, 0xB3, 0xE3, 0x83, 0xAB,
+	0xE3, 0x83, 0x8A, 0x49, 0xE3, 0x82, 0xBB, 0xE3,
+	0x83, 0xB3, 0xE3, 0x83, 0x81, 0x49, 0xE3, 0x82,
+	0xBB, 0xE3, 0x83, 0xB3, 0xE3, 0x83, 0x88, 0x49,
+	0xE3, 0x83, 0x86, 0xE3, 0x82, 0x99, 0xE3, 0x82,
+	0xB7, 0x49, 0xE3, 0x83, 0x88, 0xE3, 0x82, 0x99,
+	0xE3, 0x83, 0xAB, 0x49, 0xE3, 0x83, 0x8E, 0xE3,
+	// Bytes 2900 - 293f
+	0x83, 0x83, 0xE3, 0x83, 0x88, 0x49, 0xE3, 0x83,
+	0x8F, 0xE3, 0x82, 0xA4, 0xE3, 0x83, 0x84, 0x49,
+	0xE3, 0x83, 0x92, 0xE3, 0x82, 0x99, 0xE3, 0x83,
+	0xAB, 0x49, 0xE3, 0x83, 0x92, 0xE3, 0x82, 0x9A,
+	0xE3, 0x82, 0xB3, 0x49, 0xE3, 0x83, 0x95, 0xE3,
+	0x83, 0xA9, 0xE3, 0x83, 0xB3, 0x49, 0xE3, 0x83,
+	0x98, 0xE3, 0x82, 0x9A, 0xE3, 0x82, 0xBD, 0x49,
+	0xE3, 0x83, 0x98, 0xE3, 0x83, 0xAB, 0xE3, 0x83,
+	// Bytes 2940 - 297f
+	0x84, 0x49, 0xE3, 0x83, 0x9B, 0xE3, 0x83, 0xBC,
+	0xE3, 0x83, 0xAB, 0x49, 0xE3, 0x83, 0x9B, 0xE3,
+	0x83, 0xBC, 0xE3, 0x83, 0xB3, 0x49, 0xE3, 0x83,
+	0x9E, 0xE3, 0x82, 0xA4, 0xE3, 0x83, 0xAB, 0x49,
+	0xE3, 0x83, 0x9E, 0xE3, 0x83, 0x83, 0xE3, 0x83,
+	0x8F, 0x49, 0xE3, 0x83, 0x9E, 0xE3, 0x83, 0xAB,
+	0xE3, 0x82, 0xAF, 0x49, 0xE3, 0x83, 0xA4, 0xE3,
+	0x83, 0xBC, 0xE3, 0x83, 0xAB, 0x49, 0xE3, 0x83,
+	// Bytes 2980 - 29bf
+	0xA6, 0xE3, 0x82, 0xA2, 0xE3, 0x83, 0xB3, 0x49,
+	0xE3, 0x83, 0xAF, 0xE3, 0x83, 0x83, 0xE3, 0x83,
+	0x88, 0x4C, 0xE2, 0x80, 0xB2, 0xE2, 0x80, 0xB2,
+	0xE2, 0x80, 0xB2, 0xE2, 0x80, 0xB2, 0x4C, 0xE2,
+	0x88, 0xAB, 0xE2, 0x88, 0xAB, 0xE2, 0x88, 0xAB,
+	0xE2, 0x88, 0xAB, 0x4C, 0xE3, 0x82, 0xA2, 0xE3,
+	0x83, 0xAB, 0xE3, 0x83, 0x95, 0xE3, 0x82, 0xA1,
+	0x4C, 0xE3, 0x82, 0xA8, 0xE3, 0x83, 0xBC, 0xE3,
+	// Bytes 29c0 - 29ff
+	0x82, 0xAB, 0xE3, 0x83, 0xBC, 0x4C, 0xE3, 0x82,
+	0xAB, 0xE3, 0x82, 0x99, 0xE3, 0x83, 0xAD, 0xE3,
+	0x83, 0xB3, 0x4C, 0xE3, 0x82, 0xAB, 0xE3, 0x82,
+	0x99, 0xE3, 0x83, 0xB3, 0xE3, 0x83, 0x9E, 0x4C,
+	0xE3, 0x82, 0xAB, 0xE3, 0x83, 0xA9, 0xE3, 0x83,
+	0x83, 0xE3, 0x83, 0x88, 0x4C, 0xE3, 0x82, 0xAB,
+	0xE3, 0x83, 0xAD, 0xE3, 0x83, 0xAA, 0xE3, 0x83,
+	0xBC, 0x4C, 0xE3, 0x82, 0xAD, 0xE3, 0x82, 0x99,
+	// Bytes 2a00 - 2a3f
+	0xE3, 0x83, 0x8B, 0xE3, 0x83, 0xBC, 0x4C, 0xE3,
+	0x82, 0xAD, 0xE3, 0x83, 0xA5, 0xE3, 0x83, 0xAA,
+	0xE3, 0x83, 0xBC, 0x4C, 0xE3, 0x82, 0xAF, 0xE3,
+	0x82, 0x99, 0xE3, 0x83, 0xA9, 0xE3, 0x83, 0xA0,
+	0x4C, 0xE3, 0x82, 0xAF, 0xE3, 0x83, 0xAD, 0xE3,
+	0x83, 0xBC, 0xE3, 0x83, 0x8D, 0x4C, 0xE3, 0x82,
+	0xB5, 0xE3, 0x82, 0xA4, 0xE3, 0x82, 0xAF, 0xE3,
+	0x83, 0xAB, 0x4C, 0xE3, 0x82, 0xBF, 0xE3, 0x82,
+	// Bytes 2a40 - 2a7f
+	0x99, 0xE3, 0x83, 0xBC, 0xE3, 0x82, 0xB9, 0x4C,
+	0xE3, 0x83, 0x8F, 0xE3, 0x82, 0x9A, 0xE3, 0x83,
+	0xBC, 0xE3, 0x83, 0x84, 0x4C, 0xE3, 0x83, 0x92,
+	0xE3, 0x82, 0x9A, 0xE3, 0x82, 0xAF, 0xE3, 0x83,
+	0xAB, 0x4C, 0xE3, 0x83, 0x95, 0xE3, 0x82, 0xA3,
+	0xE3, 0x83, 0xBC, 0xE3, 0x83, 0x88, 0x4C, 0xE3,
+	0x83, 0x98, 0xE3, 0x82, 0x99, 0xE3, 0x83, 0xBC,
+	0xE3, 0x82, 0xBF, 0x4C, 0xE3, 0x83, 0x98, 0xE3,
+	// Bytes 2a80 - 2abf
+	0x82, 0x9A, 0xE3, 0x83, 0x8B, 0xE3, 0x83, 0x92,
+	0x4C, 0xE3, 0x83, 0x98, 0xE3, 0x82, 0x9A, 0xE3,
+	0x83, 0xB3, 0xE3, 0x82, 0xB9, 0x4C, 0xE3, 0x83,
+	0x9B, 0xE3, 0x82, 0x99, 0xE3, 0x83, 0xAB, 0xE3,
+	0x83, 0x88, 0x4C, 0xE3, 0x83, 0x9E, 0xE3, 0x82,
+	0xA4, 0xE3, 0x82, 0xAF, 0xE3, 0x83, 0xAD, 0x4C,
+	0xE3, 0x83, 0x9F, 0xE3, 0x82, 0xAF, 0xE3, 0x83,
+	0xAD, 0xE3, 0x83, 0xB3, 0x4C, 0xE3, 0x83, 0xA1,
+	// Bytes 2ac0 - 2aff
+	0xE3, 0x83, 0xBC, 0xE3, 0x83, 0x88, 0xE3, 0x83,
+	0xAB, 0x4C, 0xE3, 0x83, 0xAA, 0xE3, 0x83, 0x83,
+	0xE3, 0x83, 0x88, 0xE3, 0x83, 0xAB, 0x4C, 0xE3,
+	0x83, 0xAB, 0xE3, 0x83, 0x92, 0xE3, 0x82, 0x9A,
+	0xE3, 0x83, 0xBC, 0x4C, 0xE6, 0xA0, 0xAA, 0xE5,
+	0xBC, 0x8F, 0xE4, 0xBC, 0x9A, 0xE7, 0xA4, 0xBE,
+	0x4E, 0x28, 0xE1, 0x84, 0x8B, 0xE1, 0x85, 0xA9,
+	0xE1, 0x84, 0x92, 0xE1, 0x85, 0xAE, 0x29, 0x4F,
+	// Bytes 2b00 - 2b3f
+	0xD8, 0xAC, 0xD9, 0x84, 0x20, 0xD8, 0xAC, 0xD9,
+	0x84, 0xD8, 0xA7, 0xD9, 0x84, 0xD9, 0x87, 0x4F,
+	0xE3, 0x82, 0xA2, 0xE3, 0x83, 0x8F, 0xE3, 0x82,
+	0x9A, 0xE3, 0x83, 0xBC, 0xE3, 0x83, 0x88, 0x4F,
+	0xE3, 0x82, 0xA2, 0xE3, 0x83, 0xB3, 0xE3, 0x83,
+	0x98, 0xE3, 0x82, 0x9A, 0xE3, 0x82, 0xA2, 0x4F,
+	0xE3, 0x82, 0xAD, 0xE3, 0x83, 0xAD, 0xE3, 0x83,
+	0xAF, 0xE3, 0x83, 0x83, 0xE3, 0x83, 0x88, 0x4F,
+	// Bytes 2b40 - 2b7f
+	0xE3, 0x82, 0xB5, 0xE3, 0x83, 0xB3, 0xE3, 0x83,
+	0x81, 0xE3, 0x83, 0xBC, 0xE3, 0x83, 0xA0, 0x4F,
+	0xE3, 0x83, 0x8F, 0xE3, 0x82, 0x99, 0xE3, 0x83,
+	0xBC, 0xE3, 0x83, 0xAC, 0xE3, 0x83, 0xAB, 0x4F,
+	0xE3, 0x83, 0x98, 0xE3, 0x82, 0xAF, 0xE3, 0x82,
+	0xBF, 0xE3, 0x83, 0xBC, 0xE3, 0x83, 0xAB, 0x4F,
+	0xE3, 0x83, 0x9B, 0xE3, 0x82, 0x9A, 0xE3, 0x82,
+	0xA4, 0xE3, 0x83, 0xB3, 0xE3, 0x83, 0x88, 0x4F,
+	// Bytes 2b80 - 2bbf
+	0xE3, 0x83, 0x9E, 0xE3, 0x83, 0xB3, 0xE3, 0x82,
+	0xB7, 0xE3, 0x83, 0xA7, 0xE3, 0x83, 0xB3, 0x4F,
+	0xE3, 0x83, 0xA1, 0xE3, 0x82, 0xAB, 0xE3, 0x82,
+	0x99, 0xE3, 0x83, 0x88, 0xE3, 0x83, 0xB3, 0x4F,
+	0xE3, 0x83, 0xAB, 0xE3, 0x83, 0xBC, 0xE3, 0x83,
+	0x95, 0xE3, 0x82, 0x99, 0xE3, 0x83, 0xAB, 0x51,
+	0x28, 0xE1, 0x84, 0x8B, 0xE1, 0x85, 0xA9, 0xE1,
+	0x84, 0x8C, 0xE1, 0x85, 0xA5, 0xE1, 0x86, 0xAB,
+	// Bytes 2bc0 - 2bff
+	0x29, 0x52, 0xE3, 0x82, 0xAD, 0xE3, 0x82, 0x99,
+	0xE3, 0x83, 0xAB, 0xE3, 0x82, 0xBF, 0xE3, 0x82,
+	0x99, 0xE3, 0x83, 0xBC, 0x52, 0xE3, 0x82, 0xAD,
+	0xE3, 0x83, 0xAD, 0xE3, 0x82, 0xAF, 0xE3, 0x82,
+	0x99, 0xE3, 0x83, 0xA9, 0xE3, 0x83, 0xA0, 0x52,
+	0xE3, 0x82, 0xAD, 0xE3, 0x83, 0xAD, 0xE3, 0x83,
+	0xA1, 0xE3, 0x83, 0xBC, 0xE3, 0x83, 0x88, 0xE3,
+	0x83, 0xAB, 0x52, 0xE3, 0x82, 0xAF, 0xE3, 0x82,
+	// Bytes 2c00 - 2c3f
+	0x99, 0xE3, 0x83, 0xA9, 0xE3, 0x83, 0xA0, 0xE3,
+	0x83, 0x88, 0xE3, 0x83, 0xB3, 0x52, 0xE3, 0x82,
+	0xAF, 0xE3, 0x83, 0xAB, 0xE3, 0x82, 0xBB, 0xE3,
+	0x82, 0x99, 0xE3, 0x82, 0xA4, 0xE3, 0x83, 0xAD,
+	0x52, 0xE3, 0x83, 0x8F, 0xE3, 0x82, 0x9A, 0xE3,
+	0x83, 0xBC, 0xE3, 0x82, 0xBB, 0xE3, 0x83, 0xB3,
+	0xE3, 0x83, 0x88, 0x52, 0xE3, 0x83, 0x92, 0xE3,
+	0x82, 0x9A, 0xE3, 0x82, 0xA2, 0xE3, 0x82, 0xB9,
+	// Bytes 2c40 - 2c7f
+	0xE3, 0x83, 0x88, 0xE3, 0x83, 0xAB, 0x52, 0xE3,
+	0x83, 0x95, 0xE3, 0x82, 0x99, 0xE3, 0x83, 0x83,
+	0xE3, 0x82, 0xB7, 0xE3, 0x82, 0xA7, 0xE3, 0x83,
+	0xAB, 0x52, 0xE3, 0x83, 0x9F, 0xE3, 0x83, 0xAA,
+	0xE3, 0x83, 0x8F, 0xE3, 0x82, 0x99, 0xE3, 0x83,
+	0xBC, 0xE3, 0x83, 0xAB, 0x52, 0xE3, 0x83, 0xAC,
+	0xE3, 0x83, 0xB3, 0xE3, 0x83, 0x88, 0xE3, 0x82,
+	0xB1, 0xE3, 0x82, 0x99, 0xE3, 0x83, 0xB3, 0x61,
+	// Bytes 2c80 - 2cbf
+	0xD8, 0xB5, 0xD9, 0x84, 0xD9, 0x89, 0x20, 0xD8,
+	0xA7, 0xD9, 0x84, 0xD9, 0x84, 0xD9, 0x87, 0x20,
+	0xD8, 0xB9, 0xD9, 0x84, 0xD9, 0x8A, 0xD9, 0x87,
+	0x20, 0xD9, 0x88, 0xD8, 0xB3, 0xD9, 0x84, 0xD9,
+	0x85, 0x06, 0xE0, 0xA7, 0x87, 0xE0, 0xA6, 0xBE,
+	0x01, 0x06, 0xE0, 0xA7, 0x87, 0xE0, 0xA7, 0x97,
+	0x01, 0x06, 0xE0, 0xAD, 0x87, 0xE0, 0xAC, 0xBE,
+	0x01, 0x06, 0xE0, 0xAD, 0x87, 0xE0, 0xAD, 0x96,
+	// Bytes 2cc0 - 2cff
+	0x01, 0x06, 0xE0, 0xAD, 0x87, 0xE0, 0xAD, 0x97,
+	0x01, 0x06, 0xE0, 0xAE, 0x92, 0xE0, 0xAF, 0x97,
+	0x01, 0x06, 0xE0, 0xAF, 0x86, 0xE0, 0xAE, 0xBE,
+	0x01, 0x06, 0xE0, 0xAF, 0x86, 0xE0, 0xAF, 0x97,
+	0x01, 0x06, 0xE0, 0xAF, 0x87, 0xE0, 0xAE, 0xBE,
+	0x01, 0x06, 0xE0, 0xB2, 0xBF, 0xE0, 0xB3, 0x95,
+	0x01, 0x06, 0xE0, 0xB3, 0x86, 0xE0, 0xB3, 0x95,
+	0x01, 0x06, 0xE0, 0xB3, 0x86, 0xE0, 0xB3, 0x96,
+	// Bytes 2d00 - 2d3f
+	0x01, 0x06, 0xE0, 0xB5, 0x86, 0xE0, 0xB4, 0xBE,
+	0x01, 0x06, 0xE0, 0xB5, 0x86, 0xE0, 0xB5, 0x97,
+	0x01, 0x06, 0xE0, 0xB5, 0x87, 0xE0, 0xB4, 0xBE,
+	0x01, 0x06, 0xE0, 0xB7, 0x99, 0xE0, 0xB7, 0x9F,
+	0x01, 0x06, 0xE1, 0x80, 0xA5, 0xE1, 0x80, 0xAE,
+	0x01, 0x06, 0xE1, 0xAC, 0x85, 0xE1, 0xAC, 0xB5,
+	0x01, 0x06, 0xE1, 0xAC, 0x87, 0xE1, 0xAC, 0xB5,
+	0x01, 0x06, 0xE1, 0xAC, 0x89, 0xE1, 0xAC, 0xB5,
+	// Bytes 2d40 - 2d7f
+	0x01, 0x06, 0xE1, 0xAC, 0x8B, 0xE1, 0xAC, 0xB5,
+	0x01, 0x06, 0xE1, 0xAC, 0x8D, 0xE1, 0xAC, 0xB5,
+	0x01, 0x06, 0xE1, 0xAC, 0x91, 0xE1, 0xAC, 0xB5,
+	0x01, 0x06, 0xE1, 0xAC, 0xBA, 0xE1, 0xAC, 0xB5,
+	0x01, 0x06, 0xE1, 0xAC, 0xBC, 0xE1, 0xAC, 0xB5,
+	0x01, 0x06, 0xE1, 0xAC, 0xBE, 0xE1, 0xAC, 0xB5,
+	0x01, 0x06, 0xE1, 0xAC, 0xBF, 0xE1, 0xAC, 0xB5,
+	0x01, 0x06, 0xE1, 0xAD, 0x82, 0xE1, 0xAC, 0xB5,
+	// Bytes 2d80 - 2dbf
+	0x01, 0x08, 0xF0, 0x91, 0x84, 0xB1, 0xF0, 0x91,
+	0x84, 0xA7, 0x01, 0x08, 0xF0, 0x91, 0x84, 0xB2,
+	0xF0, 0x91, 0x84, 0xA7, 0x01, 0x08, 0xF0, 0x91,
+	0x8D, 0x87, 0xF0, 0x91, 0x8C, 0xBE, 0x01, 0x08,
+	0xF0, 0x91, 0x8D, 0x87, 0xF0, 0x91, 0x8D, 0x97,
+	0x01, 0x08, 0xF0, 0x91, 0x92, 0xB9, 0xF0, 0x91,
+	0x92, 0xB0, 0x01, 0x08, 0xF0, 0x91, 0x92, 0xB9,
+	0xF0, 0x91, 0x92, 0xBA, 0x01, 0x08, 0xF0, 0x91,
+	// Bytes 2dc0 - 2dff
+	0x92, 0xB9, 0xF0, 0x91, 0x92, 0xBD, 0x01, 0x08,
+	0xF0, 0x91, 0x96, 0xB8, 0xF0, 0x91, 0x96, 0xAF,
+	0x01, 0x08, 0xF0, 0x91, 0x96, 0xB9, 0xF0, 0x91,
+	0x96, 0xAF, 0x01, 0x09, 0xE0, 0xB3, 0x86, 0xE0,
+	0xB3, 0x82, 0xE0, 0xB3, 0x95, 0x02, 0x09, 0xE0,
+	0xB7, 0x99, 0xE0, 0xB7, 0x8F, 0xE0, 0xB7, 0x8A,
+	0x12, 0x44, 0x44, 0x5A, 0xCC, 0x8C, 0xC9, 0x44,
+	0x44, 0x7A, 0xCC, 0x8C, 0xC9, 0x44, 0x64, 0x7A,
+	// Bytes 2e00 - 2e3f
+	0xCC, 0x8C, 0xC9, 0x46, 0xD9, 0x84, 0xD8, 0xA7,
+	0xD9, 0x93, 0xC9, 0x46, 0xD9, 0x84, 0xD8, 0xA7,
+	0xD9, 0x94, 0xC9, 0x46, 0xD9, 0x84, 0xD8, 0xA7,
+	0xD9, 0x95, 0xB5, 0x46, 0xE1, 0x84, 0x80, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x82, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x83, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x85, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x86, 0xE1,
+	// Bytes 2e40 - 2e7f
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x87, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x89, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x8B, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x8B, 0xE1,
+	0x85, 0xAE, 0x01, 0x46, 0xE1, 0x84, 0x8C, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x8E, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x8F, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x90, 0xE1,
+	// Bytes 2e80 - 2ebf
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x91, 0xE1,
+	0x85, 0xA1, 0x01, 0x46, 0xE1, 0x84, 0x92, 0xE1,
+	0x85, 0xA1, 0x01, 0x49, 0xE3, 0x83, 0xA1, 0xE3,
+	0x82, 0xAB, 0xE3, 0x82, 0x99, 0x0D, 0x4C, 0xE1,
+	0x84, 0x8C, 0xE1, 0x85, 0xAE, 0xE1, 0x84, 0x8B,
+	0xE1, 0x85, 0xB4, 0x01, 0x4C, 0xE3, 0x82, 0xAD,
+	0xE3, 0x82, 0x99, 0xE3, 0x82, 0xAB, 0xE3, 0x82,
+	0x99, 0x0D, 0x4C, 0xE3, 0x82, 0xB3, 0xE3, 0x83,
+	// Bytes 2ec0 - 2eff
+	0xBC, 0xE3, 0x83, 0x9B, 0xE3, 0x82, 0x9A, 0x0D,
+	0x4C, 0xE3, 0x83, 0xA4, 0xE3, 0x83, 0xBC, 0xE3,
+	0x83, 0x88, 0xE3, 0x82, 0x99, 0x0D, 0x4F, 0xE1,
+	0x84, 0x8E, 0xE1, 0x85, 0xA1, 0xE1, 0x86, 0xB7,
+	0xE1, 0x84, 0x80, 0xE1, 0x85, 0xA9, 0x01, 0x4F,
+	0xE3, 0x82, 0xA4, 0xE3, 0x83, 0x8B, 0xE3, 0x83,
+	0xB3, 0xE3, 0x82, 0xAF, 0xE3, 0x82, 0x99, 0x0D,
+	0x4F, 0xE3, 0x82, 0xB7, 0xE3, 0x83, 0xAA, 0xE3,
+	// Bytes 2f00 - 2f3f
+	0x83, 0xB3, 0xE3, 0x82, 0xAF, 0xE3, 0x82, 0x99,
+	0x0D, 0x4F, 0xE3, 0x83, 0x98, 0xE3, 0x82, 0x9A,
+	0xE3, 0x83, 0xBC, 0xE3, 0x82, 0xB7, 0xE3, 0x82,
+	0x99, 0x0D, 0x4F, 0xE3, 0x83, 0x9B, 0xE3, 0x82,
+	0x9A, 0xE3, 0x83, 0xB3, 0xE3, 0x83, 0x88, 0xE3,
+	0x82, 0x99, 0x0D, 0x52, 0xE3, 0x82, 0xA8, 0xE3,
+	0x82, 0xB9, 0xE3, 0x82, 0xAF, 0xE3, 0x83, 0xBC,
+	0xE3, 0x83, 0x88, 0xE3, 0x82, 0x99, 0x0D, 0x52,
+	// Bytes 2f40 - 2f7f
+	0xE3, 0x83, 0x95, 0xE3, 0x82, 0xA1, 0xE3, 0x83,
+	0xA9, 0xE3, 0x83, 0x83, 0xE3, 0x83, 0x88, 0xE3,
+	0x82, 0x99, 0x0D, 0x86, 0xE0, 0xB3, 0x86, 0xE0,
+	0xB3, 0x82, 0x01, 0x86, 0xE0, 0xB7, 0x99, 0xE0,
+	0xB7, 0x8F, 0x01, 0x03, 0x3C, 0xCC, 0xB8, 0x05,
+	0x03, 0x3D, 0xCC, 0xB8, 0x05, 0x03, 0x3E, 0xCC,
+	0xB8, 0x05, 0x03, 0x41, 0xCC, 0x80, 0xC9, 0x03,
+	0x41, 0xCC, 0x81, 0xC9, 0x03, 0x41, 0xCC, 0x83,
+	// Bytes 2f80 - 2fbf
+	0xC9, 0x03, 0x41, 0xCC, 0x84, 0xC9, 0x03, 0x41,
+	0xCC, 0x89, 0xC9, 0x03, 0x41, 0xCC, 0x8C, 0xC9,
+	0x03, 0x41, 0xCC, 0x8F, 0xC9, 0x03, 0x41, 0xCC,
+	0x91, 0xC9, 0x03, 0x41, 0xCC, 0xA5, 0xB5, 0x03,
+	0x41, 0xCC, 0xA8, 0xA5, 0x03, 0x42, 0xCC, 0x87,
+	0xC9, 0x03, 0x42, 0xCC, 0xA3, 0xB5, 0x03, 0x42,
+	0xCC, 0xB1, 0xB5, 0x03, 0x43, 0xCC, 0x81, 0xC9,
+	0x03, 0x43, 0xCC, 0x82, 0xC9, 0x03, 0x43, 0xCC,
+	// Bytes 2fc0 - 2fff
+	0x87, 0xC9, 0x03, 0x43, 0xCC, 0x8C, 0xC9, 0x03,
+	0x44, 0xCC, 0x87, 0xC9, 0x03, 0x44, 0xCC, 0x8C,
+	0xC9, 0x03, 0x44, 0xCC, 0xA3, 0xB5, 0x03, 0x44,
+	0xCC, 0xA7, 0xA5, 0x03, 0x44, 0xCC, 0xAD, 0xB5,
+	0x03, 0x44, 0xCC, 0xB1, 0xB5, 0x03, 0x45, 0xCC,
+	0x80, 0xC9, 0x03, 0x45, 0xCC, 0x81, 0xC9, 0x03,
+	0x45, 0xCC, 0x83, 0xC9, 0x03, 0x45, 0xCC, 0x86,
+	0xC9, 0x03, 0x45, 0xCC, 0x87, 0xC9, 0x03, 0x45,
+	// Bytes 3000 - 303f
+	0xCC, 0x88, 0xC9, 0x03, 0x45, 0xCC, 0x89, 0xC9,
+	0x03, 0x45, 0xCC, 0x8C, 0xC9, 0x03, 0x45, 0xCC,
+	0x8F, 0xC9, 0x03, 0x45, 0xCC, 0x91, 0xC9, 0x03,
+	0x45, 0xCC, 0xA8, 0xA5, 0x03, 0x45, 0xCC, 0xAD,
+	0xB5, 0x03, 0x45, 0xCC, 0xB0, 0xB5, 0x03, 0x46,
+	0xCC, 0x87, 0xC9, 0x03, 0x47, 0xCC, 0x81, 0xC9,
+	0x03, 0x47, 0xCC, 0x82, 0xC9, 0x03, 0x47, 0xCC,
+	0x84, 0xC9, 0x03, 0x47, 0xCC, 0x86, 0xC9, 0x03,
+	// Bytes 3040 - 307f
+	0x47, 0xCC, 0x87, 0xC9, 0x03, 0x47, 0xCC, 0x8C,
+	0xC9, 0x03, 0x47, 0xCC, 0xA7, 0xA5, 0x03, 0x48,
+	0xCC, 0x82, 0xC9, 0x03, 0x48, 0xCC, 0x87, 0xC9,
+	0x03, 0x48, 0xCC, 0x88, 0xC9, 0x03, 0x48, 0xCC,
+	0x8C, 0xC9, 0x03, 0x48, 0xCC, 0xA3, 0xB5, 0x03,
+	0x48, 0xCC, 0xA7, 0xA5, 0x03, 0x48, 0xCC, 0xAE,
+	0xB5, 0x03, 0x49, 0xCC, 0x80, 0xC9, 0x03, 0x49,
+	0xCC, 0x81, 0xC9, 0x03, 0x49, 0xCC, 0x82, 0xC9,
+	// Bytes 3080 - 30bf
+	0x03, 0x49, 0xCC, 0x83, 0xC9, 0x03, 0x49, 0xCC,
+	0x84, 0xC9, 0x03, 0x49, 0xCC, 0x86, 0xC9, 0x03,
+	0x49, 0xCC, 0x87, 0xC9, 0x03, 0x49, 0xCC, 0x89,
+	0xC9, 0x03, 0x49, 0xCC, 0x8C, 0xC9, 0x03, 0x49,
+	0xCC, 0x8F, 0xC9, 0x03, 0x49, 0xCC, 0x91, 0xC9,
+	0x03, 0x49, 0xCC, 0xA3, 0xB5, 0x03, 0x49, 0xCC,
+	0xA8, 0xA5, 0x03, 0x49, 0xCC, 0xB0, 0xB5, 0x03,
+	0x4A, 0xCC, 0x82, 0xC9, 0x03, 0x4B, 0xCC, 0x81,
+	// Bytes 30c0 - 30ff
+	0xC9, 0x03, 0x4B, 0xCC, 0x8C, 0xC9, 0x03, 0x4B,
+	0xCC, 0xA3, 0xB5, 0x03, 0x4B, 0xCC, 0xA7, 0xA5,
+	0x03, 0x4B, 0xCC, 0xB1, 0xB5, 0x03, 0x4C, 0xCC,
+	0x81, 0xC9, 0x03, 0x4C, 0xCC, 0x8C, 0xC9, 0x03,
+	0x4C, 0xCC, 0xA7, 0xA5, 0x03, 0x4C, 0xCC, 0xAD,
+	0xB5, 0x03, 0x4C, 0xCC, 0xB1, 0xB5, 0x03, 0x4D,
+	0xCC, 0x81, 0xC9, 0x03, 0x4D, 0xCC, 0x87, 0xC9,
+	0x03, 0x4D, 0xCC, 0xA3, 0xB5, 0x03, 0x4E, 0xCC,
+	// Bytes 3100 - 313f
+	0x80, 0xC9, 0x03, 0x4E, 0xCC, 0x81, 0xC9, 0x03,
+	0x4E, 0xCC, 0x83, 0xC9, 0x03, 0x4E, 0xCC, 0x87,
+	0xC9, 0x03, 0x4E, 0xCC, 0x8C, 0xC9, 0x03, 0x4E,
+	0xCC, 0xA3, 0xB5, 0x03, 0x4E, 0xCC, 0xA7, 0xA5,
+	0x03, 0x4E, 0xCC, 0xAD, 0xB5, 0x03, 0x4E, 0xCC,
+	0xB1, 0xB5, 0x03, 0x4F, 0xCC, 0x80, 0xC9, 0x03,
+	0x4F, 0xCC, 0x81, 0xC9, 0x03, 0x4F, 0xCC, 0x86,
+	0xC9, 0x03, 0x4F, 0xCC, 0x89, 0xC9, 0x03, 0x4F,
+	// Bytes 3140 - 317f
+	0xCC, 0x8B, 0xC9, 0x03, 0x4F, 0xCC, 0x8C, 0xC9,
+	0x03, 0x4F, 0xCC, 0x8F, 0xC9, 0x03, 0x4F, 0xCC,
+	0x91, 0xC9, 0x03, 0x50, 0xCC, 0x81, 0xC9, 0x03,
+	0x50, 0xCC, 0x87, 0xC9, 0x03, 0x52, 0xCC, 0x81,
+	0xC9, 0x03, 0x52, 0xCC, 0x87, 0xC9, 0x03, 0x52,
+	0xCC, 0x8C, 0xC9, 0x03, 0x52, 0xCC, 0x8F, 0xC9,
+	0x03, 0x52, 0xCC, 0x91, 0xC9, 0x03, 0x52, 0xCC,
+	0xA7, 0xA5, 0x03, 0x52, 0xCC, 0xB1, 0xB5, 0x03,
+	// Bytes 3180 - 31bf
+	0x53, 0xCC, 0x82, 0xC9, 0x03, 0x53, 0xCC, 0x87,
+	0xC9, 0x03, 0x53, 0xCC, 0xA6, 0xB5, 0x03, 0x53,
+	0xCC, 0xA7, 0xA5, 0x03, 0x54, 0xCC, 0x87, 0xC9,
+	0x03, 0x54, 0xCC, 0x8C, 0xC9, 0x03, 0x54, 0xCC,
+	0xA3, 0xB5, 0x03, 0x54, 0xCC, 0xA6, 0xB5, 0x03,
+	0x54, 0xCC, 0xA7, 0xA5, 0x03, 0x54, 0xCC, 0xAD,
+	0xB5, 0x03, 0x54, 0xCC, 0xB1, 0xB5, 0x03, 0x55,
+	0xCC, 0x80, 0xC9, 0x03, 0x55, 0xCC, 0x81, 0xC9,
+	// Bytes 31c0 - 31ff
+	0x03, 0x55, 0xCC, 0x82, 0xC9, 0x03, 0x55, 0xCC,
+	0x86, 0xC9, 0x03, 0x55, 0xCC, 0x89, 0xC9, 0x03,
+	0x55, 0xCC, 0x8A, 0xC9, 0x03, 0x55, 0xCC, 0x8B,
+	0xC9, 0x03, 0x55, 0xCC, 0x8C, 0xC9, 0x03, 0x55,
+	0xCC, 0x8F, 0xC9, 0x03, 0x55, 0xCC, 0x91, 0xC9,
+	0x03, 0x55, 0xCC, 0xA3, 0xB5, 0x03, 0x55, 0xCC,
+	0xA4, 0xB5, 0x03, 0x55, 0xCC, 0xA8, 0xA5, 0x03,
+	0x55, 0xCC, 0xAD, 0xB5, 0x03, 0x55, 0xCC, 0xB0,
+	// Bytes 3200 - 323f
+	0xB5, 0x03, 0x56, 0xCC, 0x83, 0xC9, 0x03, 0x56,
+	0xCC, 0xA3, 0xB5, 0x03, 0x57, 0xCC, 0x80, 0xC9,
+	0x03, 0x57, 0xCC, 0x81, 0xC9, 0x03, 0x57, 0xCC,
+	0x82, 0xC9, 0x03, 0x57, 0xCC, 0x87, 0xC9, 0x03,
+	0x57, 0xCC, 0x88, 0xC9, 0x03, 0x57, 0xCC, 0xA3,
+	0xB5, 0x03, 0x58, 0xCC, 0x87, 0xC9, 0x03, 0x58,
+	0xCC, 0x88, 0xC9, 0x03, 0x59, 0xCC, 0x80, 0xC9,
+	0x03, 0x59, 0xCC, 0x81, 0xC9, 0x03, 0x59, 0xCC,
+	// Bytes 3240 - 327f
+	0x82, 0xC9, 0x03, 0x59, 0xCC, 0x83, 0xC9, 0x03,
+	0x59, 0xCC, 0x84, 0xC9, 0x03, 0x59, 0xCC, 0x87,
+	0xC9, 0x03, 0x59, 0xCC, 0x88, 0xC9, 0x03, 0x59,
+	0xCC, 0x89, 0xC9, 0x03, 0x59, 0xCC, 0xA3, 0xB5,
+	0x03, 0x5A, 0xCC, 0x81, 0xC9, 0x03, 0x5A, 0xCC,
+	0x82, 0xC9, 0x03, 0x5A, 0xCC, 0x87, 0xC9, 0x03,
+	0x5A, 0xCC, 0x8C, 0xC9, 0x03, 0x5A, 0xCC, 0xA3,
+	0xB5, 0x03, 0x5A, 0xCC, 0xB1, 0xB5, 0x03, 0x61,
+	// Bytes 3280 - 32bf
+	0xCC, 0x80, 0xC9, 0x03, 0x61, 0xCC, 0x81, 0xC9,
+	0x03, 0x61, 0xCC, 0x83, 0xC9, 0x03, 0x61, 0xCC,
+	0x84, 0xC9, 0x03, 0x61, 0xCC, 0x89, 0xC9, 0x03,
+	0x61, 0xCC, 0x8C, 0xC9, 0x03, 0x61, 0xCC, 0x8F,
+	0xC9, 0x03, 0x61, 0xCC, 0x91, 0xC9, 0x03, 0x61,
+	0xCC, 0xA5, 0xB5, 0x03, 0x61, 0xCC, 0xA8, 0xA5,
+	0x03, 0x62, 0xCC, 0x87, 0xC9, 0x03, 0x62, 0xCC,
+	0xA3, 0xB5, 0x03, 0x62, 0xCC, 0xB1, 0xB5, 0x03,
+	// Bytes 32c0 - 32ff
+	0x63, 0xCC, 0x81, 0xC9, 0x03, 0x63, 0xCC, 0x82,
+	0xC9, 0x03, 0x63, 0xCC, 0x87, 0xC9, 0x03, 0x63,
+	0xCC, 0x8C, 0xC9, 0x03, 0x64, 0xCC, 0x87, 0xC9,
+	0x03, 0x64, 0xCC, 0x8C, 0xC9, 0x03, 0x64, 0xCC,
+	0xA3, 0xB5, 0x03, 0x64, 0xCC, 0xA7, 0xA5, 0x03,
+	0x64, 0xCC, 0xAD, 0xB5, 0x03, 0x64, 0xCC, 0xB1,
+	0xB5, 0x03, 0x65, 0xCC, 0x80, 0xC9, 0x03, 0x65,
+	0xCC, 0x81, 0xC9, 0x03, 0x65, 0xCC, 0x83, 0xC9,
+	// Bytes 3300 - 333f
+	0x03, 0x65, 0xCC, 0x86, 0xC9, 0x03, 0x65, 0xCC,
+	0x87, 0xC9, 0x03, 0x65, 0xCC, 0x88, 0xC9, 0x03,
+	0x65, 0xCC, 0x89, 0xC9, 0x03, 0x65, 0xCC, 0x8C,
+	0xC9, 0x03, 0x65, 0xCC, 0x8F, 0xC9, 0x03, 0x65,
+	0xCC, 0x91, 0xC9, 0x03, 0x65, 0xCC, 0xA8, 0xA5,
+	0x03, 0x65, 0xCC, 0xAD, 0xB5, 0x03, 0x65, 0xCC,
+	0xB0, 0xB5, 0x03, 0x66, 0xCC, 0x87, 0xC9, 0x03,
+	0x67, 0xCC, 0x81, 0xC9, 0x03, 0x67, 0xCC, 0x82,
+	// Bytes 3340 - 337f
+	0xC9, 0x03, 0x67, 0xCC, 0x84, 0xC9, 0x03, 0x67,
+	0xCC, 0x86, 0xC9, 0x03, 0x67, 0xCC, 0x87, 0xC9,
+	0x03, 0x67, 0xCC, 0x8C, 0xC9, 0x03, 0x67, 0xCC,
+	0xA7, 0xA5, 0x03, 0x68, 0xCC, 0x82, 0xC9, 0x03,
+	0x68, 0xCC, 0x87, 0xC9, 0x03, 0x68, 0xCC, 0x88,
+	0xC9, 0x03, 0x68, 0xCC, 0x8C, 0xC9, 0x03, 0x68,
+	0xCC, 0xA3, 0xB5, 0x03, 0x68, 0xCC, 0xA7, 0xA5,
+	0x03, 0x68, 0xCC, 0xAE, 0xB5, 0x03, 0x68, 0xCC,
+	// Bytes 3380 - 33bf
+	0xB1, 0xB5, 0x03, 0x69, 0xCC, 0x80, 0xC9, 0x03,
+	0x69, 0xCC, 0x81, 0xC9, 0x03, 0x69, 0xCC, 0x82,
+	0xC9, 0x03, 0x69, 0xCC, 0x83, 0xC9, 0x03, 0x69,
+	0xCC, 0x84, 0xC9, 0x03, 0x69, 0xCC, 0x86, 0xC9,
+	0x03, 0x69, 0xCC, 0x89, 0xC9, 0x03, 0x69, 0xCC,
+	0x8C, 0xC9, 0x03, 0x69, 0xCC, 0x8F, 0xC9, 0x03,
+	0x69, 0xCC, 0x91, 0xC9, 0x03, 0x69, 0xCC, 0xA3,
+	0xB5, 0x03, 0x69, 0xCC, 0xA8, 0xA5, 0x03, 0x69,
+	// Bytes 33c0 - 33ff
+	0xCC, 0xB0, 0xB5, 0x03, 0x6A, 0xCC, 0x82, 0xC9,
+	0x03, 0x6A, 0xCC, 0x8C, 0xC9, 0x03, 0x6B, 0xCC,
+	0x81, 0xC9, 0x03, 0x6B, 0xCC, 0x8C, 0xC9, 0x03,
+	0x6B, 0xCC, 0xA3, 0xB5, 0x03, 0x6B, 0xCC, 0xA7,
+	0xA5, 0x03, 0x6B, 0xCC, 0xB1, 0xB5, 0x03, 0x6C,
+	0xCC, 0x81, 0xC9, 0x03, 0x6C, 0xCC, 0x8C, 0xC9,
+	0x03, 0x6C, 0xCC, 0xA7, 0xA5, 0x03, 0x6C, 0xCC,
+	0xAD, 0xB5, 0x03, 0x6C, 0xCC, 0xB1, 0xB5, 0x03,
+	// Bytes 3400 - 343f
+	0x6D, 0xCC, 0x81, 0xC9, 0x03, 0x6D, 0xCC, 0x87,
+	0xC9, 0x03, 0x6D, 0xCC, 0xA3, 0xB5, 0x03, 0x6E,
+	0xCC, 0x80, 0xC9, 0x03, 0x6E, 0xCC, 0x81, 0xC9,
+	0x03, 0x6E, 0xCC, 0x83, 0xC9, 0x03, 0x6E, 0xCC,
+	0x87, 0xC9, 0x03, 0x6E, 0xCC, 0x8C, 0xC9, 0x03,
+	0x6E, 0xCC, 0xA3, 0xB5, 0x03, 0x6E, 0xCC, 0xA7,
+	0xA5, 0x03, 0x6E, 0xCC, 0xAD, 0xB5, 0x03, 0x6E,
+	0xCC, 0xB1, 0xB5, 0x03, 0x6F, 0xCC, 0x80, 0xC9,
+	// Bytes 3440 - 347f
+	0x03, 0x6F, 0xCC, 0x81, 0xC9, 0x03, 0x6F, 0xCC,
+	0x86, 0xC9, 0x03, 0x6F, 0xCC, 0x89, 0xC9, 0x03,
+	0x6F, 0xCC, 0x8B, 0xC9, 0x03, 0x6F, 0xCC, 0x8C,
+	0xC9, 0x03, 0x6F, 0xCC, 0x8F, 0xC9, 0x03, 0x6F,
+	0xCC, 0x91, 0xC9, 0x03, 0x70, 0xCC, 0x81, 0xC9,
+	0x03, 0x70, 0xCC, 0x87, 0xC9, 0x03, 0x72, 0xCC,
+	0x81, 0xC9, 0x03, 0x72, 0xCC, 0x87, 0xC9, 0x03,
+	0x72, 0xCC, 0x8C, 0xC9, 0x03, 0x72, 0xCC, 0x8F,
+	// Bytes 3480 - 34bf
+	0xC9, 0x03, 0x72, 0xCC, 0x91, 0xC9, 0x03, 0x72,
+	0xCC, 0xA7, 0xA5, 0x03, 0x72, 0xCC, 0xB1, 0xB5,
+	0x03, 0x73, 0xCC, 0x82, 0xC9, 0x03, 0x73, 0xCC,
+	0x87, 0xC9, 0x03, 0x73, 0xCC, 0xA6, 0xB5, 0x03,
+	0x73, 0xCC, 0xA7, 0xA5, 0x03, 0x74, 0xCC, 0x87,
+	0xC9, 0x03, 0x74, 0xCC, 0x88, 0xC9, 0x03, 0x74,
+	0xCC, 0x8C, 0xC9, 0x03, 0x74, 0xCC, 0xA3, 0xB5,
+	0x03, 0x74, 0xCC, 0xA6, 0xB5, 0x03, 0x74, 0xCC,
+	// Bytes 34c0 - 34ff
+	0xA7, 0xA5, 0x03, 0x74, 0xCC, 0xAD, 0xB5, 0x03,
+	0x74, 0xCC, 0xB1, 0xB5, 0x03, 0x75, 0xCC, 0x80,
+	0xC9, 0x03, 0x75, 0xCC, 0x81, 0xC9, 0x03, 0x75,
+	0xCC, 0x82, 0xC9, 0x03, 0x75, 0xCC, 0x86, 0xC9,
+	0x03, 0x75, 0xCC, 0x89, 0xC9, 0x03, 0x75, 0xCC,
+	0x8A, 0xC9, 0x03, 0x75, 0xCC, 0x8B, 0xC9, 0x03,
+	0x75, 0xCC, 0x8C, 0xC9, 0x03, 0x75, 0xCC, 0x8F,
+	0xC9, 0x03, 0x75, 0xCC, 0x91, 0xC9, 0x03, 0x75,
+	// Bytes 3500 - 353f
+	0xCC, 0xA3, 0xB5, 0x03, 0x75, 0xCC, 0xA4, 0xB5,
+	0x03, 0x75, 0xCC, 0xA8, 0xA5, 0x03, 0x75, 0xCC,
+	0xAD, 0xB5, 0x03, 0x75, 0xCC, 0xB0, 0xB5, 0x03,
+	0x76, 0xCC, 0x83, 0xC9, 0x03, 0x76, 0xCC, 0xA3,
+	0xB5, 0x03, 0x77, 0xCC, 0x80, 0xC9, 0x03, 0x77,
+	0xCC, 0x81, 0xC9, 0x03, 0x77, 0xCC, 0x82, 0xC9,
+	0x03, 0x77, 0xCC, 0x87, 0xC9, 0x03, 0x77, 0xCC,
+	0x88, 0xC9, 0x03, 0x77, 0xCC, 0x8A, 0xC9, 0x03,
+	// Bytes 3540 - 357f
+	0x77, 0xCC, 0xA3, 0xB5, 0x03, 0x78, 0xCC, 0x87,
+	0xC9, 0x03, 0x78, 0xCC, 0x88, 0xC9, 0x03, 0x79,
+	0xCC, 0x80, 0xC9, 0x03, 0x79, 0xCC, 0x81, 0xC9,
+	0x03, 0x79, 0xCC, 0x82, 0xC9, 0x03, 0x79, 0xCC,
+	0x83, 0xC9, 0x03, 0x79, 0xCC, 0x84, 0xC9, 0x03,
+	0x79, 0xCC, 0x87, 0xC9, 0x03, 0x79, 0xCC, 0x88,
+	0xC9, 0x03, 0x79, 0xCC, 0x89, 0xC9, 0x03, 0x79,
+	0xCC, 0x8A, 0xC9, 0x03, 0x79, 0xCC, 0xA3, 0xB5,
+	// Bytes 3580 - 35bf
+	0x03, 0x7A, 0xCC, 0x81, 0xC9, 0x03, 0x7A, 0xCC,
+	0x82, 0xC9, 0x03, 0x7A, 0xCC, 0x87, 0xC9, 0x03,
+	0x7A, 0xCC, 0x8C, 0xC9, 0x03, 0x7A, 0xCC, 0xA3,
+	0xB5, 0x03, 0x7A, 0xCC, 0xB1, 0xB5, 0x04, 0xC2,
+	0xA8, 0xCC, 0x80, 0xCA, 0x04, 0xC2, 0xA8, 0xCC,
+	0x81, 0xCA, 0x04, 0xC2, 0xA8, 0xCD, 0x82, 0xCA,
+	0x04, 0xC3, 0x86, 0xCC, 0x81, 0xC9, 0x04, 0xC3,
+	0x86, 0xCC, 0x84, 0xC9, 0x04, 0xC3, 0x98, 0xCC,
+	// Bytes 35c0 - 35ff
+	0x81, 0xC9, 0x04, 0xC3, 0xA6, 0xCC, 0x81, 0xC9,
+	0x04, 0xC3, 0xA6, 0xCC, 0x84, 0xC9, 0x04, 0xC3,
+	0xB8, 0xCC, 0x81, 0xC9, 0x04, 0xC5, 0xBF, 0xCC,
+	0x87, 0xC9, 0x04, 0xC6, 0xB7, 0xCC, 0x8C, 0xC9,
+	0x04, 0xCA, 0x92, 0xCC, 0x8C, 0xC9, 0x04, 0xCE,
+	0x91, 0xCC, 0x80, 0xC9, 0x04, 0xCE, 0x91, 0xCC,
+	0x81, 0xC9, 0x04, 0xCE, 0x91, 0xCC, 0x84, 0xC9,
+	0x04, 0xCE, 0x91, 0xCC, 0x86, 0xC9, 0x04, 0xCE,
+	// Bytes 3600 - 363f
+	0x91, 0xCD, 0x85, 0xD9, 0x04, 0xCE, 0x95, 0xCC,
+	0x80, 0xC9, 0x04, 0xCE, 0x95, 0xCC, 0x81, 0xC9,
+	0x04, 0xCE, 0x97, 0xCC, 0x80, 0xC9, 0x04, 0xCE,
+	0x97, 0xCC, 0x81, 0xC9, 0x04, 0xCE, 0x97, 0xCD,
+	0x85, 0xD9, 0x04, 0xCE, 0x99, 0xCC, 0x80, 0xC9,
+	0x04, 0xCE, 0x99, 0xCC, 0x81, 0xC9, 0x04, 0xCE,
+	0x99, 0xCC, 0x84, 0xC9, 0x04, 0xCE, 0x99, 0xCC,
+	0x86, 0xC9, 0x04, 0xCE, 0x99, 0xCC, 0x88, 0xC9,
+	// Bytes 3640 - 367f
+	0x04, 0xCE, 0x9F, 0xCC, 0x80, 0xC9, 0x04, 0xCE,
+	0x9F, 0xCC, 0x81, 0xC9, 0x04, 0xCE, 0xA1, 0xCC,
+	0x94, 0xC9, 0x04, 0xCE, 0xA5, 0xCC, 0x80, 0xC9,
+	0x04, 0xCE, 0xA5, 0xCC, 0x81, 0xC9, 0x04, 0xCE,
+	0xA5, 0xCC, 0x84, 0xC9, 0x04, 0xCE, 0xA5, 0xCC,
+	0x86, 0xC9, 0x04, 0xCE, 0xA5, 0xCC, 0x88, 0xC9,
+	0x04, 0xCE, 0xA9, 0xCC, 0x80, 0xC9, 0x04, 0xCE,
+	0xA9, 0xCC, 0x81, 0xC9, 0x04, 0xCE, 0xA9, 0xCD,
+	// Bytes 3680 - 36bf
+	0x85, 0xD9, 0x04, 0xCE, 0xB1, 0xCC, 0x84, 0xC9,
+	0x04, 0xCE, 0xB1, 0xCC, 0x86, 0xC9, 0x04, 0xCE,
+	0xB1, 0xCD, 0x85, 0xD9, 0x04, 0xCE, 0xB5, 0xCC,
+	0x80, 0xC9, 0x04, 0xCE, 0xB5, 0xCC, 0x81, 0xC9,
+	0x04, 0xCE, 0xB7, 0xCD, 0x85, 0xD9, 0x04, 0xCE,
+	0xB9, 0xCC, 0x80, 0xC9, 0x04, 0xCE, 0xB9, 0xCC,
+	0x81, 0xC9, 0x04, 0xCE, 0xB9, 0xCC, 0x84, 0xC9,
+	0x04, 0xCE, 0xB9, 0xCC, 0x86, 0xC9, 0x04, 0xCE,
+	// Bytes 36c0 - 36ff
+	0xB9, 0xCD, 0x82, 0xC9, 0x04, 0xCE, 0xBF, 0xCC,
+	0x80, 0xC9, 0x04, 0xCE, 0xBF, 0xCC, 0x81, 0xC9,
+	0x04, 0xCF, 0x81, 0xCC, 0x93, 0xC9, 0x04, 0xCF,
+	0x81, 0xCC, 0x94, 0xC9, 0x04, 0xCF, 0x85, 0xCC,
+	0x80, 0xC9, 0x04, 0xCF, 0x85, 0xCC, 0x81, 0xC9,
+	0x04, 0xCF, 0x85, 0xCC, 0x84, 0xC9, 0x04, 0xCF,
+	0x85, 0xCC, 0x86, 0xC9, 0x04, 0xCF, 0x85, 0xCD,
+	0x82, 0xC9, 0x04, 0xCF, 0x89, 0xCD, 0x85, 0xD9,
+	// Bytes 3700 - 373f
+	0x04, 0xCF, 0x92, 0xCC, 0x81, 0xC9, 0x04, 0xCF,
+	0x92, 0xCC, 0x88, 0xC9, 0x04, 0xD0, 0x86, 0xCC,
+	0x88, 0xC9, 0x04, 0xD0, 0x90, 0xCC, 0x86, 0xC9,
+	0x04, 0xD0, 0x90, 0xCC, 0x88, 0xC9, 0x04, 0xD0,
+	0x93, 0xCC, 0x81, 0xC9, 0x04, 0xD0, 0x95, 0xCC,
+	0x80, 0xC9, 0x04, 0xD0, 0x95, 0xCC, 0x86, 0xC9,
+	0x04, 0xD0, 0x95, 0xCC, 0x88, 0xC9, 0x04, 0xD0,
+	0x96, 0xCC, 0x86, 0xC9, 0x04, 0xD0, 0x96, 0xCC,
+	// Bytes 3740 - 377f
+	0x88, 0xC9, 0x04, 0xD0, 0x97, 0xCC, 0x88, 0xC9,
+	0x04, 0xD0, 0x98, 0xCC, 0x80, 0xC9, 0x04, 0xD0,
+	0x98, 0xCC, 0x84, 0xC9, 0x04, 0xD0, 0x98, 0xCC,
+	0x86, 0xC9, 0x04, 0xD0, 0x98, 0xCC, 0x88, 0xC9,
+	0x04, 0xD0, 0x9A, 0xCC, 0x81, 0xC9, 0x04, 0xD0,
+	0x9E, 0xCC, 0x88, 0xC9, 0x04, 0xD0, 0xA3, 0xCC,
+	0x84, 0xC9, 0x04, 0xD0, 0xA3, 0xCC, 0x86, 0xC9,
+	0x04, 0xD0, 0xA3, 0xCC, 0x88, 0xC9, 0x04, 0xD0,
+	// Bytes 3780 - 37bf
+	0xA3, 0xCC, 0x8B, 0xC9, 0x04, 0xD0, 0xA7, 0xCC,
+	0x88, 0xC9, 0x04, 0xD0, 0xAB, 0xCC, 0x88, 0xC9,
+	0x04, 0xD0, 0xAD, 0xCC, 0x88, 0xC9, 0x04, 0xD0,
+	0xB0, 0xCC, 0x86, 0xC9, 0x04, 0xD0, 0xB0, 0xCC,
+	0x88, 0xC9, 0x04, 0xD0, 0xB3, 0xCC, 0x81, 0xC9,
+	0x04, 0xD0, 0xB5, 0xCC, 0x80, 0xC9, 0x04, 0xD0,
+	0xB5, 0xCC, 0x86, 0xC9, 0x04, 0xD0, 0xB5, 0xCC,
+	0x88, 0xC9, 0x04, 0xD0, 0xB6, 0xCC, 0x86, 0xC9,
+	// Bytes 37c0 - 37ff
+	0x04, 0xD0, 0xB6, 0xCC, 0x88, 0xC9, 0x04, 0xD0,
+	0xB7, 0xCC, 0x88, 0xC9, 0x04, 0xD0, 0xB8, 0xCC,
+	0x80, 0xC9, 0x04, 0xD0, 0xB8, 0xCC, 0x84, 0xC9,
+	0x04, 0xD0, 0xB8, 0xCC, 0x86, 0xC9, 0x04, 0xD0,
+	0xB8, 0xCC, 0x88, 0xC9, 0x04, 0xD0, 0xBA, 0xCC,
+	0x81, 0xC9, 0x04, 0xD0, 0xBE, 0xCC, 0x88, 0xC9,
+	0x04, 0xD1, 0x83, 0xCC, 0x84, 0xC9, 0x04, 0xD1,
+	0x83, 0xCC, 0x86, 0xC9, 0x04, 0xD1, 0x83, 0xCC,
+	// Bytes 3800 - 383f
+	0x88, 0xC9, 0x04, 0xD1, 0x83, 0xCC, 0x8B, 0xC9,
+	0x04, 0xD1, 0x87, 0xCC, 0x88, 0xC9, 0x04, 0xD1,
+	0x8B, 0xCC, 0x88, 0xC9, 0x04, 0xD1, 0x8D, 0xCC,
+	0x88, 0xC9, 0x04, 0xD1, 0x96, 0xCC, 0x88, 0xC9,
+	0x04, 0xD1, 0xB4, 0xCC, 0x8F, 0xC9, 0x04, 0xD1,
+	0xB5, 0xCC, 0x8F, 0xC9, 0x04, 0xD3, 0x98, 0xCC,
+	0x88, 0xC9, 0x04, 0xD3, 0x99, 0xCC, 0x88, 0xC9,
+	0x04, 0xD3, 0xA8, 0xCC, 0x88, 0xC9, 0x04, 0xD3,
+	// Bytes 3840 - 387f
+	0xA9, 0xCC, 0x88, 0xC9, 0x04, 0xD8, 0xA7, 0xD9,
+	0x93, 0xC9, 0x04, 0xD8, 0xA7, 0xD9, 0x94, 0xC9,
+	0x04, 0xD8, 0xA7, 0xD9, 0x95, 0xB5, 0x04, 0xD9,
+	0x88, 0xD9, 0x94, 0xC9, 0x04, 0xD9, 0x8A, 0xD9,
+	0x94, 0xC9, 0x04, 0xDB, 0x81, 0xD9, 0x94, 0xC9,
+	0x04, 0xDB, 0x92, 0xD9, 0x94, 0xC9, 0x04, 0xDB,
+	0x95, 0xD9, 0x94, 0xC9, 0x05, 0x41, 0xCC, 0x82,
+	0xCC, 0x80, 0xCA, 0x05, 0x41, 0xCC, 0x82, 0xCC,
+	// Bytes 3880 - 38bf
+	0x81, 0xCA, 0x05, 0x41, 0xCC, 0x82, 0xCC, 0x83,
+	0xCA, 0x05, 0x41, 0xCC, 0x82, 0xCC, 0x89, 0xCA,
+	0x05, 0x41, 0xCC, 0x86, 0xCC, 0x80, 0xCA, 0x05,
+	0x41, 0xCC, 0x86, 0xCC, 0x81, 0xCA, 0x05, 0x41,
+	0xCC, 0x86, 0xCC, 0x83, 0xCA, 0x05, 0x41, 0xCC,
+	0x86, 0xCC, 0x89, 0xCA, 0x05, 0x41, 0xCC, 0x87,
+	0xCC, 0x84, 0xCA, 0x05, 0x41, 0xCC, 0x88, 0xCC,
+	0x84, 0xCA, 0x05, 0x41, 0xCC, 0x8A, 0xCC, 0x81,
+	// Bytes 38c0 - 38ff
+	0xCA, 0x05, 0x41, 0xCC, 0xA3, 0xCC, 0x82, 0xCA,
+	0x05, 0x41, 0xCC, 0xA3, 0xCC, 0x86, 0xCA, 0x05,
+	0x43, 0xCC, 0xA7, 0xCC, 0x81, 0xCA, 0x05, 0x45,
+	0xCC, 0x82, 0xCC, 0x80, 0xCA, 0x05, 0x45, 0xCC,
+	0x82, 0xCC, 0x81, 0xCA, 0x05, 0x45, 0xCC, 0x82,
+	0xCC, 0x83, 0xCA, 0x05, 0x45, 0xCC, 0x82, 0xCC,
+	0x89, 0xCA, 0x05, 0x45, 0xCC, 0x84, 0xCC, 0x80,
+	0xCA, 0x05, 0x45, 0xCC, 0x84, 0xCC, 0x81, 0xCA,
+	// Bytes 3900 - 393f
+	0x05, 0x45, 0xCC, 0xA3, 0xCC, 0x82, 0xCA, 0x05,
+	0x45, 0xCC, 0xA7, 0xCC, 0x86, 0xCA, 0x05, 0x49,
+	0xCC, 0x88, 0xCC, 0x81, 0xCA, 0x05, 0x4C, 0xCC,
+	0xA3, 0xCC, 0x84, 0xCA, 0x05, 0x4F, 0xCC, 0x82,
+	0xCC, 0x80, 0xCA, 0x05, 0x4F, 0xCC, 0x82, 0xCC,
+	0x81, 0xCA, 0x05, 0x4F, 0xCC, 0x82, 0xCC, 0x83,
+	0xCA, 0x05, 0x4F, 0xCC, 0x82, 0xCC, 0x89, 0xCA,
+	0x05, 0x4F, 0xCC, 0x83, 0xCC, 0x81, 0xCA, 0x05,
+	// Bytes 3940 - 397f
+	0x4F, 0xCC, 0x83, 0xCC, 0x84, 0xCA, 0x05, 0x4F,
+	0xCC, 0x83, 0xCC, 0x88, 0xCA, 0x05, 0x4F, 0xCC,
+	0x84, 0xCC, 0x80, 0xCA, 0x05, 0x4F, 0xCC, 0x84,
+	0xCC, 0x81, 0xCA, 0x05, 0x4F, 0xCC, 0x87, 0xCC,
+	0x84, 0xCA, 0x05, 0x4F, 0xCC, 0x88, 0xCC, 0x84,
+	0xCA, 0x05, 0x4F, 0xCC, 0x9B, 0xCC, 0x80, 0xCA,
+	0x05, 0x4F, 0xCC, 0x9B, 0xCC, 0x81, 0xCA, 0x05,
+	0x4F, 0xCC, 0x9B, 0xCC, 0x83, 0xCA, 0x05, 0x4F,
+	// Bytes 3980 - 39bf
+	0xCC, 0x9B, 0xCC, 0x89, 0xCA, 0x05, 0x4F, 0xCC,
+	0x9B, 0xCC, 0xA3, 0xB6, 0x05, 0x4F, 0xCC, 0xA3,
+	0xCC, 0x82, 0xCA, 0x05, 0x4F, 0xCC, 0xA8, 0xCC,
+	0x84, 0xCA, 0x05, 0x52, 0xCC, 0xA3, 0xCC, 0x84,
+	0xCA, 0x05, 0x53, 0xCC, 0x81, 0xCC, 0x87, 0xCA,
+	0x05, 0x53, 0xCC, 0x8C, 0xCC, 0x87, 0xCA, 0x05,
+	0x53, 0xCC, 0xA3, 0xCC, 0x87, 0xCA, 0x05, 0x55,
+	0xCC, 0x83, 0xCC, 0x81, 0xCA, 0x05, 0x55, 0xCC,
+	// Bytes 39c0 - 39ff
+	0x84, 0xCC, 0x88, 0xCA, 0x05, 0x55, 0xCC, 0x88,
+	0xCC, 0x80, 0xCA, 0x05, 0x55, 0xCC, 0x88, 0xCC,
+	0x81, 0xCA, 0x05, 0x55, 0xCC, 0x88, 0xCC, 0x84,
+	0xCA, 0x05, 0x55, 0xCC, 0x88, 0xCC, 0x8C, 0xCA,
+	0x05, 0x55, 0xCC, 0x9B, 0xCC, 0x80, 0xCA, 0x05,
+	0x55, 0xCC, 0x9B, 0xCC, 0x81, 0xCA, 0x05, 0x55,
+	0xCC, 0x9B, 0xCC, 0x83, 0xCA, 0x05, 0x55, 0xCC,
+	0x9B, 0xCC, 0x89, 0xCA, 0x05, 0x55, 0xCC, 0x9B,
+	// Bytes 3a00 - 3a3f
+	0xCC, 0xA3, 0xB6, 0x05, 0x61, 0xCC, 0x82, 0xCC,
+	0x80, 0xCA, 0x05, 0x61, 0xCC, 0x82, 0xCC, 0x81,
+	0xCA, 0x05, 0x61, 0xCC, 0x82, 0xCC, 0x83, 0xCA,
+	0x05, 0x61, 0xCC, 0x82, 0xCC, 0x89, 0xCA, 0x05,
+	0x61, 0xCC, 0x86, 0xCC, 0x80, 0xCA, 0x05, 0x61,
+	0xCC, 0x86, 0xCC, 0x81, 0xCA, 0x05, 0x61, 0xCC,
+	0x86, 0xCC, 0x83, 0xCA, 0x05, 0x61, 0xCC, 0x86,
+	0xCC, 0x89, 0xCA, 0x05, 0x61, 0xCC, 0x87, 0xCC,
+	// Bytes 3a40 - 3a7f
+	0x84, 0xCA, 0x05, 0x61, 0xCC, 0x88, 0xCC, 0x84,
+	0xCA, 0x05, 0x61, 0xCC, 0x8A, 0xCC, 0x81, 0xCA,
+	0x05, 0x61, 0xCC, 0xA3, 0xCC, 0x82, 0xCA, 0x05,
+	0x61, 0xCC, 0xA3, 0xCC, 0x86, 0xCA, 0x05, 0x63,
+	0xCC, 0xA7, 0xCC, 0x81, 0xCA, 0x05, 0x65, 0xCC,
+	0x82, 0xCC, 0x80, 0xCA, 0x05, 0x65, 0xCC, 0x82,
+	0xCC, 0x81, 0xCA, 0x05, 0x65, 0xCC, 0x82, 0xCC,
+	0x83, 0xCA, 0x05, 0x65, 0xCC, 0x82, 0xCC, 0x89,
+	// Bytes 3a80 - 3abf
+	0xCA, 0x05, 0x65, 0xCC, 0x84, 0xCC, 0x80, 0xCA,
+	0x05, 0x65, 0xCC, 0x84, 0xCC, 0x81, 0xCA, 0x05,
+	0x65, 0xCC, 0xA3, 0xCC, 0x82, 0xCA, 0x05, 0x65,
+	0xCC, 0xA7, 0xCC, 0x86, 0xCA, 0x05, 0x69, 0xCC,
+	0x88, 0xCC, 0x81, 0xCA, 0x05, 0x6C, 0xCC, 0xA3,
+	0xCC, 0x84, 0xCA, 0x05, 0x6F, 0xCC, 0x82, 0xCC,
+	0x80, 0xCA, 0x05, 0x6F, 0xCC, 0x82, 0xCC, 0x81,
+	0xCA, 0x05, 0x6F, 0xCC, 0x82, 0xCC, 0x83, 0xCA,
+	// Bytes 3ac0 - 3aff
+	0x05, 0x6F, 0xCC, 0x82, 0xCC, 0x89, 0xCA, 0x05,
+	0x6F, 0xCC, 0x83, 0xCC, 0x81, 0xCA, 0x05, 0x6F,
+	0xCC, 0x83, 0xCC, 0x84, 0xCA, 0x05, 0x6F, 0xCC,
+	0x83, 0xCC, 0x88, 0xCA, 0x05, 0x6F, 0xCC, 0x84,
+	0xCC, 0x80, 0xCA, 0x05, 0x6F, 0xCC, 0x84, 0xCC,
+	0x81, 0xCA, 0x05, 0x6F, 0xCC, 0x87, 0xCC, 0x84,
+	0xCA, 0x05, 0x6F, 0xCC, 0x88, 0xCC, 0x84, 0xCA,
+	0x05, 0x6F, 0xCC, 0x9B, 0xCC, 0x80, 0xCA, 0x05,
+	// Bytes 3b00 - 3b3f
+	0x6F, 0xCC, 0x9B, 0xCC, 0x81, 0xCA, 0x05, 0x6F,
+	0xCC, 0x9B, 0xCC, 0x83, 0xCA, 0x05, 0x6F, 0xCC,
+	0x9B, 0xCC, 0x89, 0xCA, 0x05, 0x6F, 0xCC, 0x9B,
+	0xCC, 0xA3, 0xB6, 0x05, 0x6F, 0xCC, 0xA3, 0xCC,
+	0x82, 0xCA, 0x05, 0x6F, 0xCC, 0xA8, 0xCC, 0x84,
+	0xCA, 0x05, 0x72, 0xCC, 0xA3, 0xCC, 0x84, 0xCA,
+	0x05, 0x73, 0xCC, 0x81, 0xCC, 0x87, 0xCA, 0x05,
+	0x73, 0xCC, 0x8C, 0xCC, 0x87, 0xCA, 0x05, 0x73,
+	// Bytes 3b40 - 3b7f
+	0xCC, 0xA3, 0xCC, 0x87, 0xCA, 0x05, 0x75, 0xCC,
+	0x83, 0xCC, 0x81, 0xCA, 0x05, 0x75, 0xCC, 0x84,
+	0xCC, 0x88, 0xCA, 0x05, 0x75, 0xCC, 0x88, 0xCC,
+	0x80, 0xCA, 0x05, 0x75, 0xCC, 0x88, 0xCC, 0x81,
+	0xCA, 0x05, 0x75, 0xCC, 0x88, 0xCC, 0x84, 0xCA,
+	0x05, 0x75, 0xCC, 0x88, 0xCC, 0x8C, 0xCA, 0x05,
+	0x75, 0xCC, 0x9B, 0xCC, 0x80, 0xCA, 0x05, 0x75,
+	0xCC, 0x9B, 0xCC, 0x81, 0xCA, 0x05, 0x75, 0xCC,
+	// Bytes 3b80 - 3bbf
+	0x9B, 0xCC, 0x83, 0xCA, 0x05, 0x75, 0xCC, 0x9B,
+	0xCC, 0x89, 0xCA, 0x05, 0x75, 0xCC, 0x9B, 0xCC,
+	0xA3, 0xB6, 0x05, 0xE1, 0xBE, 0xBF, 0xCC, 0x80,
+	0xCA, 0x05, 0xE1, 0xBE, 0xBF, 0xCC, 0x81, 0xCA,
+	0x05, 0xE1, 0xBE, 0xBF, 0xCD, 0x82, 0xCA, 0x05,
+	0xE1, 0xBF, 0xBE, 0xCC, 0x80, 0xCA, 0x05, 0xE1,
+	0xBF, 0xBE, 0xCC, 0x81, 0xCA, 0x05, 0xE1, 0xBF,
+	0xBE, 0xCD, 0x82, 0xCA, 0x05, 0xE2, 0x86, 0x90,
+	// Bytes 3bc0 - 3bff
+	0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x86, 0x92, 0xCC,
+	0xB8, 0x05, 0x05, 0xE2, 0x86, 0x94, 0xCC, 0xB8,
+	0x05, 0x05, 0xE2, 0x87, 0x90, 0xCC, 0xB8, 0x05,
+	0x05, 0xE2, 0x87, 0x92, 0xCC, 0xB8, 0x05, 0x05,
+	0xE2, 0x87, 0x94, 0xCC, 0xB8, 0x05, 0x05, 0xE2,
+	0x88, 0x83, 0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x88,
+	0x88, 0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x88, 0x8B,
+	0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x88, 0xA3, 0xCC,
+	// Bytes 3c00 - 3c3f
+	0xB8, 0x05, 0x05, 0xE2, 0x88, 0xA5, 0xCC, 0xB8,
+	0x05, 0x05, 0xE2, 0x88, 0xBC, 0xCC, 0xB8, 0x05,
+	0x05, 0xE2, 0x89, 0x83, 0xCC, 0xB8, 0x05, 0x05,
+	0xE2, 0x89, 0x85, 0xCC, 0xB8, 0x05, 0x05, 0xE2,
+	0x89, 0x88, 0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x89,
+	0x8D, 0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x89, 0xA1,
+	0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x89, 0xA4, 0xCC,
+	0xB8, 0x05, 0x05, 0xE2, 0x89, 0xA5, 0xCC, 0xB8,
+	// Bytes 3c40 - 3c7f
+	0x05, 0x05, 0xE2, 0x89, 0xB2, 0xCC, 0xB8, 0x05,
+	0x05, 0xE2, 0x89, 0xB3, 0xCC, 0xB8, 0x05, 0x05,
+	0xE2, 0x89, 0xB6, 0xCC, 0xB8, 0x05, 0x05, 0xE2,
+	0x89, 0xB7, 0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x89,
+	0xBA, 0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x89, 0xBB,
+	0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x89, 0xBC, 0xCC,
+	0xB8, 0x05, 0x05, 0xE2, 0x89, 0xBD, 0xCC, 0xB8,
+	0x05, 0x05, 0xE2, 0x8A, 0x82, 0xCC, 0xB8, 0x05,
+	// Bytes 3c80 - 3cbf
+	0x05, 0xE2, 0x8A, 0x83, 0xCC, 0xB8, 0x05, 0x05,
+	0xE2, 0x8A, 0x86, 0xCC, 0xB8, 0x05, 0x05, 0xE2,
+	0x8A, 0x87, 0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x8A,
+	0x91, 0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x8A, 0x92,
+	0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x8A, 0xA2, 0xCC,
+	0xB8, 0x05, 0x05, 0xE2, 0x8A, 0xA8, 0xCC, 0xB8,
+	0x05, 0x05, 0xE2, 0x8A, 0xA9, 0xCC, 0xB8, 0x05,
+	0x05, 0xE2, 0x8A, 0xAB, 0xCC, 0xB8, 0x05, 0x05,
+	// Bytes 3cc0 - 3cff
+	0xE2, 0x8A, 0xB2, 0xCC, 0xB8, 0x05, 0x05, 0xE2,
+	0x8A, 0xB3, 0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x8A,
+	0xB4, 0xCC, 0xB8, 0x05, 0x05, 0xE2, 0x8A, 0xB5,
+	0xCC, 0xB8, 0x05, 0x06, 0xCE, 0x91, 0xCC, 0x93,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0x91, 0xCC, 0x94,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0x95, 0xCC, 0x93,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0x95, 0xCC, 0x93,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0x95, 0xCC, 0x94,
+	// Bytes 3d00 - 3d3f
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0x95, 0xCC, 0x94,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0x97, 0xCC, 0x93,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0x97, 0xCC, 0x94,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0x99, 0xCC, 0x93,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0x99, 0xCC, 0x93,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0x99, 0xCC, 0x93,
+	0xCD, 0x82, 0xCA, 0x06, 0xCE, 0x99, 0xCC, 0x94,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0x99, 0xCC, 0x94,
+	// Bytes 3d40 - 3d7f
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0x99, 0xCC, 0x94,
+	0xCD, 0x82, 0xCA, 0x06, 0xCE, 0x9F, 0xCC, 0x93,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0x9F, 0xCC, 0x93,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0x9F, 0xCC, 0x94,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0x9F, 0xCC, 0x94,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0xA5, 0xCC, 0x94,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0xA5, 0xCC, 0x94,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0xA5, 0xCC, 0x94,
+	// Bytes 3d80 - 3dbf
+	0xCD, 0x82, 0xCA, 0x06, 0xCE, 0xA9, 0xCC, 0x93,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xA9, 0xCC, 0x94,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB1, 0xCC, 0x80,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB1, 0xCC, 0x81,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB1, 0xCC, 0x93,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB1, 0xCC, 0x94,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB1, 0xCD, 0x82,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB5, 0xCC, 0x93,
+	// Bytes 3dc0 - 3dff
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0xB5, 0xCC, 0x93,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0xB5, 0xCC, 0x94,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0xB5, 0xCC, 0x94,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0xB7, 0xCC, 0x80,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB7, 0xCC, 0x81,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB7, 0xCC, 0x93,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB7, 0xCC, 0x94,
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB7, 0xCD, 0x82,
+	// Bytes 3e00 - 3e3f
+	0xCD, 0x85, 0xDA, 0x06, 0xCE, 0xB9, 0xCC, 0x88,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0xB9, 0xCC, 0x88,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0xB9, 0xCC, 0x88,
+	0xCD, 0x82, 0xCA, 0x06, 0xCE, 0xB9, 0xCC, 0x93,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0xB9, 0xCC, 0x93,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0xB9, 0xCC, 0x93,
+	0xCD, 0x82, 0xCA, 0x06, 0xCE, 0xB9, 0xCC, 0x94,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0xB9, 0xCC, 0x94,
+	// Bytes 3e40 - 3e7f
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0xB9, 0xCC, 0x94,
+	0xCD, 0x82, 0xCA, 0x06, 0xCE, 0xBF, 0xCC, 0x93,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0xBF, 0xCC, 0x93,
+	0xCC, 0x81, 0xCA, 0x06, 0xCE, 0xBF, 0xCC, 0x94,
+	0xCC, 0x80, 0xCA, 0x06, 0xCE, 0xBF, 0xCC, 0x94,
+	0xCC, 0x81, 0xCA, 0x06, 0xCF, 0x85, 0xCC, 0x88,
+	0xCC, 0x80, 0xCA, 0x06, 0xCF, 0x85, 0xCC, 0x88,
+	0xCC, 0x81, 0xCA, 0x06, 0xCF, 0x85, 0xCC, 0x88,
+	// Bytes 3e80 - 3ebf
+	0xCD, 0x82, 0xCA, 0x06, 0xCF, 0x85, 0xCC, 0x93,
+	0xCC, 0x80, 0xCA, 0x06, 0xCF, 0x85, 0xCC, 0x93,
+	0xCC, 0x81, 0xCA, 0x06, 0xCF, 0x85, 0xCC, 0x93,
+	0xCD, 0x82, 0xCA, 0x06, 0xCF, 0x85, 0xCC, 0x94,
+	0xCC, 0x80, 0xCA, 0x06, 0xCF, 0x85, 0xCC, 0x94,
+	0xCC, 0x81, 0xCA, 0x06, 0xCF, 0x85, 0xCC, 0x94,
+	0xCD, 0x82, 0xCA, 0x06, 0xCF, 0x89, 0xCC, 0x80,
+	0xCD, 0x85, 0xDA, 0x06, 0xCF, 0x89, 0xCC, 0x81,
+	// Bytes 3ec0 - 3eff
+	0xCD, 0x85, 0xDA, 0x06, 0xCF, 0x89, 0xCC, 0x93,
+	0xCD, 0x85, 0xDA, 0x06, 0xCF, 0x89, 0xCC, 0x94,
+	0xCD, 0x85, 0xDA, 0x06, 0xCF, 0x89, 0xCD, 0x82,
+	0xCD, 0x85, 0xDA, 0x06, 0xE0, 0xA4, 0xA8, 0xE0,
+	0xA4, 0xBC, 0x09, 0x06, 0xE0, 0xA4, 0xB0, 0xE0,
+	0xA4, 0xBC, 0x09, 0x06, 0xE0, 0xA4, 0xB3, 0xE0,
+	0xA4, 0xBC, 0x09, 0x06, 0xE0, 0xB1, 0x86, 0xE0,
+	0xB1, 0x96, 0x85, 0x06, 0xE0, 0xB7, 0x99, 0xE0,
+	// Bytes 3f00 - 3f3f
+	0xB7, 0x8A, 0x11, 0x06, 0xE3, 0x81, 0x86, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x8B, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x8D, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x8F, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x91, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x93, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x95, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x97, 0xE3,
+	// Bytes 3f40 - 3f7f
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x99, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x9B, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x9D, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0x9F, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0xA1, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0xA4, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0xA6, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0xA8, 0xE3,
+	// Bytes 3f80 - 3fbf
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0xAF, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0xAF, 0xE3,
+	0x82, 0x9A, 0x0D, 0x06, 0xE3, 0x81, 0xB2, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0xB2, 0xE3,
+	0x82, 0x9A, 0x0D, 0x06, 0xE3, 0x81, 0xB5, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0xB5, 0xE3,
+	0x82, 0x9A, 0x0D, 0x06, 0xE3, 0x81, 0xB8, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0xB8, 0xE3,
+	// Bytes 3fc0 - 3fff
+	0x82, 0x9A, 0x0D, 0x06, 0xE3, 0x81, 0xBB, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x81, 0xBB, 0xE3,
+	0x82, 0x9A, 0x0D, 0x06, 0xE3, 0x82, 0x9D, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xA6, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xAB, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xAD, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xAF, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xB1, 0xE3,
+	// Bytes 4000 - 403f
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xB3, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xB5, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xB7, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xB9, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xBB, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xBD, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x82, 0xBF, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0x81, 0xE3,
+	// Bytes 4040 - 407f
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0x84, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0x86, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0x88, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0x8F, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0x8F, 0xE3,
+	0x82, 0x9A, 0x0D, 0x06, 0xE3, 0x83, 0x92, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0x92, 0xE3,
+	0x82, 0x9A, 0x0D, 0x06, 0xE3, 0x83, 0x95, 0xE3,
+	// Bytes 4080 - 40bf
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0x95, 0xE3,
+	0x82, 0x9A, 0x0D, 0x06, 0xE3, 0x83, 0x98, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0x98, 0xE3,
+	0x82, 0x9A, 0x0D, 0x06, 0xE3, 0x83, 0x9B, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0x9B, 0xE3,
+	0x82, 0x9A, 0x0D, 0x06, 0xE3, 0x83, 0xAF, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0xB0, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0xB1, 0xE3,
+	// Bytes 40c0 - 40ff
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0xB2, 0xE3,
+	0x82, 0x99, 0x0D, 0x06, 0xE3, 0x83, 0xBD, 0xE3,
+	0x82, 0x99, 0x0D, 0x08, 0xCE, 0x91, 0xCC, 0x93,
+	0xCC, 0x80, 0xCD, 0x85, 0xDB, 0x08, 0xCE, 0x91,
+	0xCC, 0x93, 0xCC, 0x81, 0xCD, 0x85, 0xDB, 0x08,
+	0xCE, 0x91, 0xCC, 0x93, 0xCD, 0x82, 0xCD, 0x85,
+	0xDB, 0x08, 0xCE, 0x91, 0xCC, 0x94, 0xCC, 0x80,
+	0xCD, 0x85, 0xDB, 0x08, 0xCE, 0x91, 0xCC, 0x94,
+	// Bytes 4100 - 413f
+	0xCC, 0x81, 0xCD, 0x85, 0xDB, 0x08, 0xCE, 0x91,
+	0xCC, 0x94, 0xCD, 0x82, 0xCD, 0x85, 0xDB, 0x08,
+	0xCE, 0x97, 0xCC, 0x93, 0xCC, 0x80, 0xCD, 0x85,
+	0xDB, 0x08, 0xCE, 0x97, 0xCC, 0x93, 0xCC, 0x81,
+	0xCD, 0x85, 0xDB, 0x08, 0xCE, 0x97, 0xCC, 0x93,
+	0xCD, 0x82, 0xCD, 0x85, 0xDB, 0x08, 0xCE, 0x97,
+	0xCC, 0x94, 0xCC, 0x80, 0xCD, 0x85, 0xDB, 0x08,
+	0xCE, 0x97, 0xCC, 0x94, 0xCC, 0x81, 0xCD, 0x85,
+	// Bytes 4140 - 417f
+	0xDB, 0x08, 0xCE, 0x97, 0xCC, 0x94, 0xCD, 0x82,
+	0xCD, 0x85, 0xDB, 0x08, 0xCE, 0xA9, 0xCC, 0x93,
+	0xCC, 0x80, 0xCD, 0x85, 0xDB, 0x08, 0xCE, 0xA9,
+	0xCC, 0x93, 0xCC, 0x81, 0xCD, 0x85, 0xDB, 0x08,
+	0xCE, 0xA9, 0xCC, 0x93, 0xCD, 0x82, 0xCD, 0x85,
+	0xDB, 0x08, 0xCE, 0xA9, 0xCC, 0x94, 0xCC, 0x80,
+	0xCD, 0x85, 0xDB, 0x08, 0xCE, 0xA9, 0xCC, 0x94,
+	0xCC, 0x81, 0xCD, 0x85, 0xDB, 0x08, 0xCE, 0xA9,
+	// Bytes 4180 - 41bf
+	0xCC, 0x94, 0xCD, 0x82, 0xCD, 0x85, 0xDB, 0x08,
+	0xCE, 0xB1, 0xCC, 0x93, 0xCC, 0x80, 0xCD, 0x85,
+	0xDB, 0x08, 0xCE, 0xB1, 0xCC, 0x93, 0xCC, 0x81,
+	0xCD, 0x85, 0xDB, 0x08, 0xCE, 0xB1, 0xCC, 0x93,
+	0xCD, 0x82, 0xCD, 0x85, 0xDB, 0x08, 0xCE, 0xB1,
+	0xCC, 0x94, 0xCC, 0x80, 0xCD, 0x85, 0xDB, 0x08,
+	0xCE, 0xB1, 0xCC, 0x94, 0xCC, 0x81, 0xCD, 0x85,
+	0xDB, 0x08, 0xCE, 0xB1, 0xCC, 0x94, 0xCD, 0x82,
+	// Bytes 41c0 - 41ff
+	0xCD, 0x85, 0xDB, 0x08, 0xCE, 0xB7, 0xCC, 0x93,
+	0xCC, 0x80, 0xCD, 0x85, 0xDB, 0x08, 0xCE, 0xB7,
+	0xCC, 0x93, 0xCC, 0x81, 0xCD, 0x85, 0xDB, 0x08,
+	0xCE, 0xB7, 0xCC, 0x93, 0xCD, 0x82, 0xCD, 0x85,
+	0xDB, 0x08, 0xCE, 0xB7, 0xCC, 0x94, 0xCC, 0x80,
+	0xCD, 0x85, 0xDB, 0x08, 0xCE, 0xB7, 0xCC, 0x94,
+	0xCC, 0x81, 0xCD, 0x85, 0xDB, 0x08, 0xCE, 0xB7,
+	0xCC, 0x94, 0xCD, 0x82, 0xCD, 0x85, 0xDB, 0x08,
+	// Bytes 4200 - 423f
+	0xCF, 0x89, 0xCC, 0x93, 0xCC, 0x80, 0xCD, 0x85,
+	0xDB, 0x08, 0xCF, 0x89, 0xCC, 0x93, 0xCC, 0x81,
+	0xCD, 0x85, 0xDB, 0x08, 0xCF, 0x89, 0xCC, 0x93,
+	0xCD, 0x82, 0xCD, 0x85, 0xDB, 0x08, 0xCF, 0x89,
+	0xCC, 0x94, 0xCC, 0x80, 0xCD, 0x85, 0xDB, 0x08,
+	0xCF, 0x89, 0xCC, 0x94, 0xCC, 0x81, 0xCD, 0x85,
+	0xDB, 0x08, 0xCF, 0x89, 0xCC, 0x94, 0xCD, 0x82,
+	0xCD, 0x85, 0xDB, 0x08, 0xF0, 0x91, 0x82, 0x99,
+	// Bytes 4240 - 427f
+	0xF0, 0x91, 0x82, 0xBA, 0x09, 0x08, 0xF0, 0x91,
+	0x82, 0x9B, 0xF0, 0x91, 0x82, 0xBA, 0x09, 0x08,
+	0xF0, 0x91, 0x82, 0xA5, 0xF0, 0x91, 0x82, 0xBA,
+	0x09, 0x42, 0xC2, 0xB4, 0x01, 0x43, 0x20, 0xCC,
+	0x81, 0xC9, 0x43, 0x20, 0xCC, 0x83, 0xC9, 0x43,
+	0x20, 0xCC, 0x84, 0xC9, 0x43, 0x20, 0xCC, 0x85,
+	0xC9, 0x43, 0x20, 0xCC, 0x86, 0xC9, 0x43, 0x20,
+	0xCC, 0x87, 0xC9, 0x43, 0x20, 0xCC, 0x88, 0xC9,
+	// Bytes 4280 - 42bf
+	0x43, 0x20, 0xCC, 0x8A, 0xC9, 0x43, 0x20, 0xCC,
+	0x8B, 0xC9, 0x43, 0x20, 0xCC, 0x93, 0xC9, 0x43,
+	0x20, 0xCC, 0x94, 0xC9, 0x43, 0x20, 0xCC, 0xA7,
+	0xA5, 0x43, 0x20, 0xCC, 0xA8, 0xA5, 0x43, 0x20,
+	0xCC, 0xB3, 0xB5, 0x43, 0x20, 0xCD, 0x82, 0xC9,
+	0x43, 0x20, 0xCD, 0x85, 0xD9, 0x43, 0x20, 0xD9,
+	0x8B, 0x59, 0x43, 0x20, 0xD9, 0x8C, 0x5D, 0x43,
+	0x20, 0xD9, 0x8D, 0x61, 0x43, 0x20, 0xD9, 0x8E,
+	// Bytes 42c0 - 42ff
+	0x65, 0x43, 0x20, 0xD9, 0x8F, 0x69, 0x43, 0x20,
+	0xD9, 0x90, 0x6D, 0x43, 0x20, 0xD9, 0x91, 0x71,
+	0x43, 0x20, 0xD9, 0x92, 0x75, 0x43, 0x41, 0xCC,
+	0x8A, 0xC9, 0x43, 0x73, 0xCC, 0x87, 0xC9, 0x44,
+	0x20, 0xE3, 0x82, 0x99, 0x0D, 0x44, 0x20, 0xE3,
+	0x82, 0x9A, 0x0D, 0x44, 0xC2, 0xA8, 0xCC, 0x81,
+	0xCA, 0x44, 0xCE, 0x91, 0xCC, 0x81, 0xC9, 0x44,
+	0xCE, 0x95, 0xCC, 0x81, 0xC9, 0x44, 0xCE, 0x97,
+	// Bytes 4300 - 433f
+	0xCC, 0x81, 0xC9, 0x44, 0xCE, 0x99, 0xCC, 0x81,
+	0xC9, 0x44, 0xCE, 0x9F, 0xCC, 0x81, 0xC9, 0x44,
+	0xCE, 0xA5, 0xCC, 0x81, 0xC9, 0x44, 0xCE, 0xA5,
+	0xCC, 0x88, 0xC9, 0x44, 0xCE, 0xA9, 0xCC, 0x81,
+	0xC9, 0x44, 0xCE, 0xB1, 0xCC, 0x81, 0xC9, 0x44,
+	0xCE, 0xB5, 0xCC, 0x81, 0xC9, 0x44, 0xCE, 0xB7,
+	0xCC, 0x81, 0xC9, 0x44, 0xCE, 0xB9, 0xCC, 0x81,
+	0xC9, 0x44, 0xCE, 0xBF, 0xCC, 0x81, 0xC9, 0x44,
+	// Bytes 4340 - 437f
+	0xCF, 0x85, 0xCC, 0x81, 0xC9, 0x44, 0xCF, 0x89,
+	0xCC, 0x81, 0xC9, 0x44, 0xD7, 0x90, 0xD6, 0xB7,
+	0x31, 0x44, 0xD7, 0x90, 0xD6, 0xB8, 0x35, 0x44,
+	0xD7, 0x90, 0xD6, 0xBC, 0x41, 0x44, 0xD7, 0x91,
+	0xD6, 0xBC, 0x41, 0x44, 0xD7, 0x91, 0xD6, 0xBF,
+	0x49, 0x44, 0xD7, 0x92, 0xD6, 0xBC, 0x41, 0x44,
+	0xD7, 0x93, 0xD6, 0xBC, 0x41, 0x44, 0xD7, 0x94,
+	0xD6, 0xBC, 0x41, 0x44, 0xD7, 0x95, 0xD6, 0xB9,
+	// Bytes 4380 - 43bf
+	0x39, 0x44, 0xD7, 0x95, 0xD6, 0xBC, 0x41, 0x44,
+	0xD7, 0x96, 0xD6, 0xBC, 0x41, 0x44, 0xD7, 0x98,
+	0xD6, 0xBC, 0x41, 0x44, 0xD7, 0x99, 0xD6, 0xB4,
+	0x25, 0x44, 0xD7, 0x99, 0xD6, 0xBC, 0x41, 0x44,
+	0xD7, 0x9A, 0xD6, 0xBC, 0x41, 0x44, 0xD7, 0x9B,
+	0xD6, 0xBC, 0x41, 0x44, 0xD7, 0x9B, 0xD6, 0xBF,
+	0x49, 0x44, 0xD7, 0x9C, 0xD6, 0xBC, 0x41, 0x44,
+	0xD7, 0x9E, 0xD6, 0xBC, 0x41, 0x44, 0xD7, 0xA0,
+	// Bytes 43c0 - 43ff
+	0xD6, 0xBC, 0x41, 0x44, 0xD7, 0xA1, 0xD6, 0xBC,
+	0x41, 0x44, 0xD7, 0xA3, 0xD6, 0xBC, 0x41, 0x44,
+	0xD7, 0xA4, 0xD6, 0xBC, 0x41, 0x44, 0xD7, 0xA4,
+	0xD6, 0xBF, 0x49, 0x44, 0xD7, 0xA6, 0xD6, 0xBC,
+	0x41, 0x44, 0xD7, 0xA7, 0xD6, 0xBC, 0x41, 0x44,
+	0xD7, 0xA8, 0xD6, 0xBC, 0x41, 0x44, 0xD7, 0xA9,
+	0xD6, 0xBC, 0x41, 0x44, 0xD7, 0xA9, 0xD7, 0x81,
+	0x4D, 0x44, 0xD7, 0xA9, 0xD7, 0x82, 0x51, 0x44,
+	// Bytes 4400 - 443f
+	0xD7, 0xAA, 0xD6, 0xBC, 0x41, 0x44, 0xD7, 0xB2,
+	0xD6, 0xB7, 0x31, 0x44, 0xD8, 0xA7, 0xD9, 0x8B,
+	0x59, 0x44, 0xD8, 0xA7, 0xD9, 0x93, 0xC9, 0x44,
+	0xD8, 0xA7, 0xD9, 0x94, 0xC9, 0x44, 0xD8, 0xA7,
+	0xD9, 0x95, 0xB5, 0x44, 0xD8, 0xB0, 0xD9, 0xB0,
+	0x79, 0x44, 0xD8, 0xB1, 0xD9, 0xB0, 0x79, 0x44,
+	0xD9, 0x80, 0xD9, 0x8B, 0x59, 0x44, 0xD9, 0x80,
+	0xD9, 0x8E, 0x65, 0x44, 0xD9, 0x80, 0xD9, 0x8F,
+	// Bytes 4440 - 447f
+	0x69, 0x44, 0xD9, 0x80, 0xD9, 0x90, 0x6D, 0x44,
+	0xD9, 0x80, 0xD9, 0x91, 0x71, 0x44, 0xD9, 0x80,
+	0xD9, 0x92, 0x75, 0x44, 0xD9, 0x87, 0xD9, 0xB0,
+	0x79, 0x44, 0xD9, 0x88, 0xD9, 0x94, 0xC9, 0x44,
+	0xD9, 0x89, 0xD9, 0xB0, 0x79, 0x44, 0xD9, 0x8A,
+	0xD9, 0x94, 0xC9, 0x44, 0xDB, 0x92, 0xD9, 0x94,
+	0xC9, 0x44, 0xDB, 0x95, 0xD9, 0x94, 0xC9, 0x45,
+	0x20, 0xCC, 0x88, 0xCC, 0x80, 0xCA, 0x45, 0x20,
+	// Bytes 4480 - 44bf
+	0xCC, 0x88, 0xCC, 0x81, 0xCA, 0x45, 0x20, 0xCC,
+	0x88, 0xCD, 0x82, 0xCA, 0x45, 0x20, 0xCC, 0x93,
+	0xCC, 0x80, 0xCA, 0x45, 0x20, 0xCC, 0x93, 0xCC,
+	0x81, 0xCA, 0x45, 0x20, 0xCC, 0x93, 0xCD, 0x82,
+	0xCA, 0x45, 0x20, 0xCC, 0x94, 0xCC, 0x80, 0xCA,
+	0x45, 0x20, 0xCC, 0x94, 0xCC, 0x81, 0xCA, 0x45,
+	0x20, 0xCC, 0x94, 0xCD, 0x82, 0xCA, 0x45, 0x20,
+	0xD9, 0x8C, 0xD9, 0x91, 0x72, 0x45, 0x20, 0xD9,
+	// Bytes 44c0 - 44ff
+	0x8D, 0xD9, 0x91, 0x72, 0x45, 0x20, 0xD9, 0x8E,
+	0xD9, 0x91, 0x72, 0x45, 0x20, 0xD9, 0x8F, 0xD9,
+	0x91, 0x72, 0x45, 0x20, 0xD9, 0x90, 0xD9, 0x91,
+	0x72, 0x45, 0x20, 0xD9, 0x91, 0xD9, 0xB0, 0x7A,
+	0x45, 0xE2, 0xAB, 0x9D, 0xCC, 0xB8, 0x05, 0x46,
+	0xCE, 0xB9, 0xCC, 0x88, 0xCC, 0x81, 0xCA, 0x46,
+	0xCF, 0x85, 0xCC, 0x88, 0xCC, 0x81, 0xCA, 0x46,
+	0xD7, 0xA9, 0xD6, 0xBC, 0xD7, 0x81, 0x4E, 0x46,
+	// Bytes 4500 - 453f
+	0xD7, 0xA9, 0xD6, 0xBC, 0xD7, 0x82, 0x52, 0x46,
+	0xD9, 0x80, 0xD9, 0x8E, 0xD9, 0x91, 0x72, 0x46,
+	0xD9, 0x80, 0xD9, 0x8F, 0xD9, 0x91, 0x72, 0x46,
+	0xD9, 0x80, 0xD9, 0x90, 0xD9, 0x91, 0x72, 0x46,
+	0xE0, 0xA4, 0x95, 0xE0, 0xA4, 0xBC, 0x09, 0x46,
+	0xE0, 0xA4, 0x96, 0xE0, 0xA4, 0xBC, 0x09, 0x46,
+	0xE0, 0xA4, 0x97, 0xE0, 0xA4, 0xBC, 0x09, 0x46,
+	0xE0, 0xA4, 0x9C, 0xE0, 0xA4, 0xBC, 0x09, 0x46,
+	// Bytes 4540 - 457f
+	0xE0, 0xA4, 0xA1, 0xE0, 0xA4, 0xBC, 0x09, 0x46,
+	0xE0, 0xA4, 0xA2, 0xE0, 0xA4, 0xBC, 0x09, 0x46,
+	0xE0, 0xA4, 0xAB, 0xE0, 0xA4, 0xBC, 0x09, 0x46,
+	0xE0, 0xA4, 0xAF, 0xE0, 0xA4, 0xBC, 0x09, 0x46,
+	0xE0, 0xA6, 0xA1, 0xE0, 0xA6, 0xBC, 0x09, 0x46,
+	0xE0, 0xA6, 0xA2, 0xE0, 0xA6, 0xBC, 0x09, 0x46,
+	0xE0, 0xA6, 0xAF, 0xE0, 0xA6, 0xBC, 0x09, 0x46,
+	0xE0, 0xA8, 0x96, 0xE0, 0xA8, 0xBC, 0x09, 0x46,
+	// Bytes 4580 - 45bf
+	0xE0, 0xA8, 0x97, 0xE0, 0xA8, 0xBC, 0x09, 0x46,
+	0xE0, 0xA8, 0x9C, 0xE0, 0xA8, 0xBC, 0x09, 0x46,
+	0xE0, 0xA8, 0xAB, 0xE0, 0xA8, 0xBC, 0x09, 0x46,
+	0xE0, 0xA8, 0xB2, 0xE0, 0xA8, 0xBC, 0x09, 0x46,
+	0xE0, 0xA8, 0xB8, 0xE0, 0xA8, 0xBC, 0x09, 0x46,
+	0xE0, 0xAC, 0xA1, 0xE0, 0xAC, 0xBC, 0x09, 0x46,
+	0xE0, 0xAC, 0xA2, 0xE0, 0xAC, 0xBC, 0x09, 0x46,
+	0xE0, 0xBE, 0xB2, 0xE0, 0xBE, 0x80, 0x9D, 0x46,
+	// Bytes 45c0 - 45ff
+	0xE0, 0xBE, 0xB3, 0xE0, 0xBE, 0x80, 0x9D, 0x46,
+	0xE3, 0x83, 0x86, 0xE3, 0x82, 0x99, 0x0D, 0x48,
+	0xF0, 0x9D, 0x85, 0x97, 0xF0, 0x9D, 0x85, 0xA5,
+	0xAD, 0x48, 0xF0, 0x9D, 0x85, 0x98, 0xF0, 0x9D,
+	0x85, 0xA5, 0xAD, 0x48, 0xF0, 0x9D, 0x86, 0xB9,
+	0xF0, 0x9D, 0x85, 0xA5, 0xAD, 0x48, 0xF0, 0x9D,
+	0x86, 0xBA, 0xF0, 0x9D, 0x85, 0xA5, 0xAD, 0x49,
+	0xE0, 0xBE, 0xB2, 0xE0, 0xBD, 0xB1, 0xE0, 0xBE,
+	// Bytes 4600 - 463f
+	0x80, 0x9E, 0x49, 0xE0, 0xBE, 0xB3, 0xE0, 0xBD,
+	0xB1, 0xE0, 0xBE, 0x80, 0x9E, 0x4C, 0xF0, 0x9D,
+	0x85, 0x98, 0xF0, 0x9D, 0x85, 0xA5, 0xF0, 0x9D,
+	0x85, 0xAE, 0xAE, 0x4C, 0xF0, 0x9D, 0x85, 0x98,
+	0xF0, 0x9D, 0x85, 0xA5, 0xF0, 0x9D, 0x85, 0xAF,
+	0xAE, 0x4C, 0xF0, 0x9D, 0x85, 0x98, 0xF0, 0x9D,
+	0x85, 0xA5, 0xF0, 0x9D, 0x85, 0xB0, 0xAE, 0x4C,
+	0xF0, 0x9D, 0x85, 0x98, 0xF0, 0x9D, 0x85, 0xA5,
+	// Bytes 4640 - 467f
+	0xF0, 0x9D, 0x85, 0xB1, 0xAE, 0x4C, 0xF0, 0x9D,
+	0x85, 0x98, 0xF0, 0x9D, 0x85, 0xA5, 0xF0, 0x9D,
+	0x85, 0xB2, 0xAE, 0x4C, 0xF0, 0x9D, 0x86, 0xB9,
+	0xF0, 0x9D, 0x85, 0xA5, 0xF0, 0x9D, 0x85, 0xAE,
+	0xAE, 0x4C, 0xF0, 0x9D, 0x86, 0xB9, 0xF0, 0x9D,
+	0x85, 0xA5, 0xF0, 0x9D, 0x85, 0xAF, 0xAE, 0x4C,
+	0xF0, 0x9D, 0x86, 0xBA, 0xF0, 0x9D, 0x85, 0xA5,
+	0xF0, 0x9D, 0x85, 0xAE, 0xAE, 0x4C, 0xF0, 0x9D,
+	// Bytes 4680 - 46bf
+	0x86, 0xBA, 0xF0, 0x9D, 0x85, 0xA5, 0xF0, 0x9D,
+	0x85, 0xAF, 0xAE, 0x83, 0x41, 0xCC, 0x82, 0xC9,
+	0x83, 0x41, 0xCC, 0x86, 0xC9, 0x83, 0x41, 0xCC,
+	0x87, 0xC9, 0x83, 0x41, 0xCC, 0x88, 0xC9, 0x83,
+	0x41, 0xCC, 0x8A, 0xC9, 0x83, 0x41, 0xCC, 0xA3,
+	0xB5, 0x83, 0x43, 0xCC, 0xA7, 0xA5, 0x83, 0x45,
+	0xCC, 0x82, 0xC9, 0x83, 0x45, 0xCC, 0x84, 0xC9,
+	0x83, 0x45, 0xCC, 0xA3, 0xB5, 0x83, 0x45, 0xCC,
+	// Bytes 46c0 - 46ff
+	0xA7, 0xA5, 0x83, 0x49, 0xCC, 0x88, 0xC9, 0x83,
+	0x4C, 0xCC, 0xA3, 0xB5, 0x83, 0x4F, 0xCC, 0x82,
+	0xC9, 0x83, 0x4F, 0xCC, 0x83, 0xC9, 0x83, 0x4F,
+	0xCC, 0x84, 0xC9, 0x83, 0x4F, 0xCC, 0x87, 0xC9,
+	0x83, 0x4F, 0xCC, 0x88, 0xC9, 0x83, 0x4F, 0xCC,
+	0x9B, 0xAD, 0x83, 0x4F, 0xCC, 0xA3, 0xB5, 0x83,
+	0x4F, 0xCC, 0xA8, 0xA5, 0x83, 0x52, 0xCC, 0xA3,
+	0xB5, 0x83, 0x53, 0xCC, 0x81, 0xC9, 0x83, 0x53,
+	// Bytes 4700 - 473f
+	0xCC, 0x8C, 0xC9, 0x83, 0x53, 0xCC, 0xA3, 0xB5,
+	0x83, 0x55, 0xCC, 0x83, 0xC9, 0x83, 0x55, 0xCC,
+	0x84, 0xC9, 0x83, 0x55, 0xCC, 0x88, 0xC9, 0x83,
+	0x55, 0xCC, 0x9B, 0xAD, 0x83, 0x61, 0xCC, 0x82,
+	0xC9, 0x83, 0x61, 0xCC, 0x86, 0xC9, 0x83, 0x61,
+	0xCC, 0x87, 0xC9, 0x83, 0x61, 0xCC, 0x88, 0xC9,
+	0x83, 0x61, 0xCC, 0x8A, 0xC9, 0x83, 0x61, 0xCC,
+	0xA3, 0xB5, 0x83, 0x63, 0xCC, 0xA7, 0xA5, 0x83,
+	// Bytes 4740 - 477f
+	0x65, 0xCC, 0x82, 0xC9, 0x83, 0x65, 0xCC, 0x84,
+	0xC9, 0x83, 0x65, 0xCC, 0xA3, 0xB5, 0x83, 0x65,
+	0xCC, 0xA7, 0xA5, 0x83, 0x69, 0xCC, 0x88, 0xC9,
+	0x83, 0x6C, 0xCC, 0xA3, 0xB5, 0x83, 0x6F, 0xCC,
+	0x82, 0xC9, 0x83, 0x6F, 0xCC, 0x83, 0xC9, 0x83,
+	0x6F, 0xCC, 0x84, 0xC9, 0x83, 0x6F, 0xCC, 0x87,
+	0xC9, 0x83, 0x6F, 0xCC, 0x88, 0xC9, 0x83, 0x6F,
+	0xCC, 0x9B, 0xAD, 0x83, 0x6F, 0xCC, 0xA3, 0xB5,
+	// Bytes 4780 - 47bf
+	0x83, 0x6F, 0xCC, 0xA8, 0xA5, 0x83, 0x72, 0xCC,
+	0xA3, 0xB5, 0x83, 0x73, 0xCC, 0x81, 0xC9, 0x83,
+	0x73, 0xCC, 0x8C, 0xC9, 0x83, 0x73, 0xCC, 0xA3,
+	0xB5, 0x83, 0x75, 0xCC, 0x83, 0xC9, 0x83, 0x75,
+	0xCC, 0x84, 0xC9, 0x83, 0x75, 0xCC, 0x88, 0xC9,
+	0x83, 0x75, 0xCC, 0x9B, 0xAD, 0x84, 0xCE, 0x91,
+	0xCC, 0x93, 0xC9, 0x84, 0xCE, 0x91, 0xCC, 0x94,
+	0xC9, 0x84, 0xCE, 0x95, 0xCC, 0x93, 0xC9, 0x84,
+	// Bytes 47c0 - 47ff
+	0xCE, 0x95, 0xCC, 0x94, 0xC9, 0x84, 0xCE, 0x97,
+	0xCC, 0x93, 0xC9, 0x84, 0xCE, 0x97, 0xCC, 0x94,
+	0xC9, 0x84, 0xCE, 0x99, 0xCC, 0x93, 0xC9, 0x84,
+	0xCE, 0x99, 0xCC, 0x94, 0xC9, 0x84, 0xCE, 0x9F,
+	0xCC, 0x93, 0xC9, 0x84, 0xCE, 0x9F, 0xCC, 0x94,
+	0xC9, 0x84, 0xCE, 0xA5, 0xCC, 0x94, 0xC9, 0x84,
+	0xCE, 0xA9, 0xCC, 0x93, 0xC9, 0x84, 0xCE, 0xA9,
+	0xCC, 0x94, 0xC9, 0x84, 0xCE, 0xB1, 0xCC, 0x80,
+	// Bytes 4800 - 483f
+	0xC9, 0x84, 0xCE, 0xB1, 0xCC, 0x81, 0xC9, 0x84,
+	0xCE, 0xB1, 0xCC, 0x93, 0xC9, 0x84, 0xCE, 0xB1,
+	0xCC, 0x94, 0xC9, 0x84, 0xCE, 0xB1, 0xCD, 0x82,
+	0xC9, 0x84, 0xCE, 0xB5, 0xCC, 0x93, 0xC9, 0x84,
+	0xCE, 0xB5, 0xCC, 0x94, 0xC9, 0x84, 0xCE, 0xB7,
+	0xCC, 0x80, 0xC9, 0x84, 0xCE, 0xB7, 0xCC, 0x81,
+	0xC9, 0x84, 0xCE, 0xB7, 0xCC, 0x93, 0xC9, 0x84,
+	0xCE, 0xB7, 0xCC, 0x94, 0xC9, 0x84, 0xCE, 0xB7,
+	// Bytes 4840 - 487f
+	0xCD, 0x82, 0xC9, 0x84, 0xCE, 0xB9, 0xCC, 0x88,
+	0xC9, 0x84, 0xCE, 0xB9, 0xCC, 0x93, 0xC9, 0x84,
+	0xCE, 0xB9, 0xCC, 0x94, 0xC9, 0x84, 0xCE, 0xBF,
+	0xCC, 0x93, 0xC9, 0x84, 0xCE, 0xBF, 0xCC, 0x94,
+	0xC9, 0x84, 0xCF, 0x85, 0xCC, 0x88, 0xC9, 0x84,
+	0xCF, 0x85, 0xCC, 0x93, 0xC9, 0x84, 0xCF, 0x85,
+	0xCC, 0x94, 0xC9, 0x84, 0xCF, 0x89, 0xCC, 0x80,
+	0xC9, 0x84, 0xCF, 0x89, 0xCC, 0x81, 0xC9, 0x84,
+	// Bytes 4880 - 48bf
+	0xCF, 0x89, 0xCC, 0x93, 0xC9, 0x84, 0xCF, 0x89,
+	0xCC, 0x94, 0xC9, 0x84, 0xCF, 0x89, 0xCD, 0x82,
+	0xC9, 0x86, 0xCE, 0x91, 0xCC, 0x93, 0xCC, 0x80,
+	0xCA, 0x86, 0xCE, 0x91, 0xCC, 0x93, 0xCC, 0x81,
+	0xCA, 0x86, 0xCE, 0x91, 0xCC, 0x93, 0xCD, 0x82,
+	0xCA, 0x86, 0xCE, 0x91, 0xCC, 0x94, 0xCC, 0x80,
+	0xCA, 0x86, 0xCE, 0x91, 0xCC, 0x94, 0xCC, 0x81,
+	0xCA, 0x86, 0xCE, 0x91, 0xCC, 0x94, 0xCD, 0x82,
+	// Bytes 48c0 - 48ff
+	0xCA, 0x86, 0xCE, 0x97, 0xCC, 0x93, 0xCC, 0x80,
+	0xCA, 0x86, 0xCE, 0x97, 0xCC, 0x93, 0xCC, 0x81,
+	0xCA, 0x86, 0xCE, 0x97, 0xCC, 0x93, 0xCD, 0x82,
+	0xCA, 0x86, 0xCE, 0x97, 0xCC, 0x94, 0xCC, 0x80,
+	0xCA, 0x86, 0xCE, 0x97, 0xCC, 0x94, 0xCC, 0x81,
+	0xCA, 0x86, 0xCE, 0x97, 0xCC, 0x94, 0xCD, 0x82,
+	0xCA, 0x86, 0xCE, 0xA9, 0xCC, 0x93, 0xCC, 0x80,
+	0xCA, 0x86, 0xCE, 0xA9, 0xCC, 0x93, 0xCC, 0x81,
+	// Bytes 4900 - 493f
+	0xCA, 0x86, 0xCE, 0xA9, 0xCC, 0x93, 0xCD, 0x82,
+	0xCA, 0x86, 0xCE, 0xA9, 0xCC, 0x94, 0xCC, 0x80,
+	0xCA, 0x86, 0xCE, 0xA9, 0xCC, 0x94, 0xCC, 0x81,
+	0xCA, 0x86, 0xCE, 0xA9, 0xCC, 0x94, 0xCD, 0x82,
+	0xCA, 0x86, 0xCE, 0xB1, 0xCC, 0x93, 0xCC, 0x80,
+	0xCA, 0x86, 0xCE, 0xB1, 0xCC, 0x93, 0xCC, 0x81,
+	0xCA, 0x86, 0xCE, 0xB1, 0xCC, 0x93, 0xCD, 0x82,
+	0xCA, 0x86, 0xCE, 0xB1, 0xCC, 0x94, 0xCC, 0x80,
+	// Bytes 4940 - 497f
+	0xCA, 0x86, 0xCE, 0xB1, 0xCC, 0x94, 0xCC, 0x81,
+	0xCA, 0x86, 0xCE, 0xB1, 0xCC, 0x94, 0xCD, 0x82,
+	0xCA, 0x86, 0xCE, 0xB7, 0xCC, 0x93, 0xCC, 0x80,
+	0xCA, 0x86, 0xCE, 0xB7, 0xCC, 0x93, 0xCC, 0x81,
+	0xCA, 0x86, 0xCE, 0xB7, 0xCC, 0x93, 0xCD, 0x82,
+	0xCA, 0x86, 0xCE, 0xB7, 0xCC, 0x94, 0xCC, 0x80,
+	0xCA, 0x86, 0xCE, 0xB7, 0xCC, 0x94, 0xCC, 0x81,
+	0xCA, 0x86, 0xCE, 0xB7, 0xCC, 0x94, 0xCD, 0x82,
+	// Bytes 4980 - 49bf
+	0xCA, 0x86, 0xCF, 0x89, 0xCC, 0x93, 0xCC, 0x80,
+	0xCA, 0x86, 0xCF, 0x89, 0xCC, 0x93, 0xCC, 0x81,
+	0xCA, 0x86, 0xCF, 0x89, 0xCC, 0x93, 0xCD, 0x82,
+	0xCA, 0x86, 0xCF, 0x89, 0xCC, 0x94, 0xCC, 0x80,
+	0xCA, 0x86, 0xCF, 0x89, 0xCC, 0x94, 0xCC, 0x81,
+	0xCA, 0x86, 0xCF, 0x89, 0xCC, 0x94, 0xCD, 0x82,
+	0xCA, 0x42, 0xCC, 0x80, 0xC9, 0x32, 0x42, 0xCC,
+	0x81, 0xC9, 0x32, 0x42, 0xCC, 0x93, 0xC9, 0x32,
+	// Bytes 49c0 - 49ff
+	0x43, 0xE1, 0x85, 0xA1, 0x01, 0x00, 0x43, 0xE1,
+	0x85, 0xA2, 0x01, 0x00, 0x43, 0xE1, 0x85, 0xA3,
+	0x01, 0x00, 0x43, 0xE1, 0x85, 0xA4, 0x01, 0x00,
+	0x43, 0xE1, 0x85, 0xA5, 0x01, 0x00, 0x43, 0xE1,
+	0x85, 0xA6, 0x01, 0x00, 0x43, 0xE1, 0x85, 0xA7,
+	0x01, 0x00, 0x43, 0xE1, 0x85, 0xA8, 0x01, 0x00,
+	0x43, 0xE1, 0x85, 0xA9, 0x01, 0x00, 0x43, 0xE1,
+	0x85, 0xAA, 0x01, 0x00, 0x43, 0xE1, 0x85, 0xAB,
+	// Bytes 4a00 - 4a3f
+	0x01, 0x00, 0x43, 0xE1, 0x85, 0xAC, 0x01, 0x00,
+	0x43, 0xE1, 0x85, 0xAD, 0x01, 0x00, 0x43, 0xE1,
+	0x85, 0xAE, 0x01, 0x00, 0x43, 0xE1, 0x85, 0xAF,
+	0x01, 0x00, 0x43, 0xE1, 0x85, 0xB0, 0x01, 0x00,
+	0x43, 0xE1, 0x85, 0xB1, 0x01, 0x00, 0x43, 0xE1,
+	0x85, 0xB2, 0x01, 0x00, 0x43, 0xE1, 0x85, 0xB3,
+	0x01, 0x00, 0x43, 0xE1, 0x85, 0xB4, 0x01, 0x00,
+	0x43, 0xE1, 0x85, 0xB5, 0x01, 0x00, 0x43, 0xE1,
+	// Bytes 4a40 - 4a7f
+	0x86, 0xAA, 0x01, 0x00, 0x43, 0xE1, 0x86, 0xAC,
+	0x01, 0x00, 0x43, 0xE1, 0x86, 0xAD, 0x01, 0x00,
+	0x43, 0xE1, 0x86, 0xB0, 0x01, 0x00, 0x43, 0xE1,
+	0x86, 0xB1, 0x01, 0x00, 0x43, 0xE1, 0x86, 0xB2,
+	0x01, 0x00, 0x43, 0xE1, 0x86, 0xB3, 0x01, 0x00,
+	0x43, 0xE1, 0x86, 0xB4, 0x01, 0x00, 0x43, 0xE1,
+	0x86, 0xB5, 0x01, 0x00, 0x44, 0xCC, 0x88, 0xCC,
+	0x81, 0xCA, 0x32, 0x43, 0xE3, 0x82, 0x99, 0x0D,
+	// Bytes 4a80 - 4abf
+	0x03, 0x43, 0xE3, 0x82, 0x9A, 0x0D, 0x03, 0x46,
+	0xE0, 0xBD, 0xB1, 0xE0, 0xBD, 0xB2, 0x9E, 0x26,
+	0x46, 0xE0, 0xBD, 0xB1, 0xE0, 0xBD, 0xB4, 0xA2,
+	0x26, 0x46, 0xE0, 0xBD, 0xB1, 0xE0, 0xBE, 0x80,
+	0x9E, 0x26, 0x00, 0x01,
+}
+
+// lookup returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *nfcTrie) lookup(s []byte) (v uint16, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < 0x80: // is ASCII
+		return nfcValues[c0], 1
+	case c0 < 0xC2:
+		return 0, 1 // Illegal UTF-8: not a starter, not ASCII.
+	case c0 < 0xE0: // 2-byte UTF-8
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := nfcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c1), 2
+	case c0 < 0xF0: // 3-byte UTF-8
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := nfcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = nfcIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c2), 3
+	case c0 < 0xF8: // 4-byte UTF-8
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := nfcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = nfcIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		o = uint32(i)<<6 + uint32(c2)
+		i = nfcIndex[o]
+		c3 := s[3]
+		if c3 < 0x80 || 0xC0 <= c3 {
+			return 0, 3 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must start with a full and valid UTF-8 encoded rune.
+func (t *nfcTrie) lookupUnsafe(s []byte) uint16 {
+	c0 := s[0]
+	if c0 < 0x80 { // is ASCII
+		return nfcValues[c0]
+	}
+	i := nfcIndex[c0]
+	if c0 < 0xE0 { // 2-byte UTF-8
+		return t.lookupValue(uint32(i), s[1])
+	}
+	i = nfcIndex[uint32(i)<<6+uint32(s[1])]
+	if c0 < 0xF0 { // 3-byte UTF-8
+		return t.lookupValue(uint32(i), s[2])
+	}
+	i = nfcIndex[uint32(i)<<6+uint32(s[2])]
+	if c0 < 0xF8 { // 4-byte UTF-8
+		return t.lookupValue(uint32(i), s[3])
+	}
+	return 0
+}
+
+// lookupString returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *nfcTrie) lookupString(s string) (v uint16, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < 0x80: // is ASCII
+		return nfcValues[c0], 1
+	case c0 < 0xC2:
+		return 0, 1 // Illegal UTF-8: not a starter, not ASCII.
+	case c0 < 0xE0: // 2-byte UTF-8
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := nfcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c1), 2
+	case c0 < 0xF0: // 3-byte UTF-8
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := nfcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = nfcIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c2), 3
+	case c0 < 0xF8: // 4-byte UTF-8
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := nfcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = nfcIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		o = uint32(i)<<6 + uint32(c2)
+		i = nfcIndex[o]
+		c3 := s[3]
+		if c3 < 0x80 || 0xC0 <= c3 {
+			return 0, 3 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupStringUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must start with a full and valid UTF-8 encoded rune.
+func (t *nfcTrie) lookupStringUnsafe(s string) uint16 {
+	c0 := s[0]
+	if c0 < 0x80 { // is ASCII
+		return nfcValues[c0]
+	}
+	i := nfcIndex[c0]
+	if c0 < 0xE0 { // 2-byte UTF-8
+		return t.lookupValue(uint32(i), s[1])
+	}
+	i = nfcIndex[uint32(i)<<6+uint32(s[1])]
+	if c0 < 0xF0 { // 3-byte UTF-8
+		return t.lookupValue(uint32(i), s[2])
+	}
+	i = nfcIndex[uint32(i)<<6+uint32(s[2])]
+	if c0 < 0xF8 { // 4-byte UTF-8
+		return t.lookupValue(uint32(i), s[3])
+	}
+	return 0
+}
+
+// nfcTrie. Total size: 10610 bytes (10.36 KiB). Checksum: 95e8869a9f81e5e6.
+type nfcTrie struct{}
+
+func newNfcTrie(i int) *nfcTrie {
+	return &nfcTrie{}
+}
+
+// lookupValue determines the type of block n and looks up the value for b.
+func (t *nfcTrie) lookupValue(n uint32, b byte) uint16 {
+	switch {
+	case n < 46:
+		return uint16(nfcValues[n<<6+uint32(b)])
+	default:
+		n -= 46
+		return uint16(nfcSparse.lookup(n, b))
+	}
+}
+
+// nfcValues: 48 blocks, 3072 entries, 6144 bytes
+// The third block is the zero block.
+var nfcValues = [3072]uint16{
+	// Block 0x0, offset 0x0
+	0x3c: 0xa000, 0x3d: 0xa000, 0x3e: 0xa000,
+	// Block 0x1, offset 0x40
+	0x41: 0xa000, 0x42: 0xa000, 0x43: 0xa000, 0x44: 0xa000, 0x45: 0xa000,
+	0x46: 0xa000, 0x47: 0xa000, 0x48: 0xa000, 0x49: 0xa000, 0x4a: 0xa000, 0x4b: 0xa000,
+	0x4c: 0xa000, 0x4d: 0xa000, 0x4e: 0xa000, 0x4f: 0xa000, 0x50: 0xa000,
+	0x52: 0xa000, 0x53: 0xa000, 0x54: 0xa000, 0x55: 0xa000, 0x56: 0xa000, 0x57: 0xa000,
+	0x58: 0xa000, 0x59: 0xa000, 0x5a: 0xa000,
+	0x61: 0xa000, 0x62: 0xa000, 0x63: 0xa000,
+	0x64: 0xa000, 0x65: 0xa000, 0x66: 0xa000, 0x67: 0xa000, 0x68: 0xa000, 0x69: 0xa000,
+	0x6a: 0xa000, 0x6b: 0xa000, 0x6c: 0xa000, 0x6d: 0xa000, 0x6e: 0xa000, 0x6f: 0xa000,
+	0x70: 0xa000, 0x72: 0xa000, 0x73: 0xa000, 0x74: 0xa000, 0x75: 0xa000,
+	0x76: 0xa000, 0x77: 0xa000, 0x78: 0xa000, 0x79: 0xa000, 0x7a: 0xa000,
+	// Block 0x2, offset 0x80
+	// Block 0x3, offset 0xc0
+	0xc0: 0x2f72, 0xc1: 0x2f77, 0xc2: 0x468b, 0xc3: 0x2f7c, 0xc4: 0x469a, 0xc5: 0x469f,
+	0xc6: 0xa000, 0xc7: 0x46a9, 0xc8: 0x2fe5, 0xc9: 0x2fea, 0xca: 0x46ae, 0xcb: 0x2ffe,
+	0xcc: 0x3071, 0xcd: 0x3076, 0xce: 0x307b, 0xcf: 0x46c2, 0xd1: 0x3107,
+	0xd2: 0x312a, 0xd3: 0x312f, 0xd4: 0x46cc, 0xd5: 0x46d1, 0xd6: 0x46e0,
+	0xd8: 0xa000, 0xd9: 0x31b6, 0xda: 0x31bb, 0xdb: 0x31c0, 0xdc: 0x4712, 0xdd: 0x3238,
+	0xe0: 0x327e, 0xe1: 0x3283, 0xe2: 0x471c, 0xe3: 0x3288,
+	0xe4: 0x472b, 0xe5: 0x4730, 0xe6: 0xa000, 0xe7: 0x473a, 0xe8: 0x32f1, 0xe9: 0x32f6,
+	0xea: 0x473f, 0xeb: 0x330a, 0xec: 0x3382, 0xed: 0x3387, 0xee: 0x338c, 0xef: 0x4753,
+	0xf1: 0x3418, 0xf2: 0x343b, 0xf3: 0x3440, 0xf4: 0x475d, 0xf5: 0x4762,
+	0xf6: 0x4771, 0xf8: 0xa000, 0xf9: 0x34cc, 0xfa: 0x34d1, 0xfb: 0x34d6,
+	0xfc: 0x47a3, 0xfd: 0x3553, 0xff: 0x356c,
+	// Block 0x4, offset 0x100
+	0x100: 0x2f81, 0x101: 0x328d, 0x102: 0x4690, 0x103: 0x4721, 0x104: 0x2f9f, 0x105: 0x32ab,
+	0x106: 0x2fb3, 0x107: 0x32bf, 0x108: 0x2fb8, 0x109: 0x32c4, 0x10a: 0x2fbd, 0x10b: 0x32c9,
+	0x10c: 0x2fc2, 0x10d: 0x32ce, 0x10e: 0x2fcc, 0x10f: 0x32d8,
+	0x112: 0x46b3, 0x113: 0x4744, 0x114: 0x2ff4, 0x115: 0x3300, 0x116: 0x2ff9, 0x117: 0x3305,
+	0x118: 0x3017, 0x119: 0x3323, 0x11a: 0x3008, 0x11b: 0x3314, 0x11c: 0x3030, 0x11d: 0x333c,
+	0x11e: 0x303a, 0x11f: 0x3346, 0x120: 0x303f, 0x121: 0x334b, 0x122: 0x3049, 0x123: 0x3355,
+	0x124: 0x304e, 0x125: 0x335a, 0x128: 0x3080, 0x129: 0x3391,
+	0x12a: 0x3085, 0x12b: 0x3396, 0x12c: 0x308a, 0x12d: 0x339b, 0x12e: 0x30ad, 0x12f: 0x33b9,
+	0x130: 0x308f, 0x134: 0x30b7, 0x135: 0x33c3,
+	0x136: 0x30cb, 0x137: 0x33dc, 0x139: 0x30d5, 0x13a: 0x33e6, 0x13b: 0x30df,
+	0x13c: 0x33f0, 0x13d: 0x30da, 0x13e: 0x33eb,
+	// Block 0x5, offset 0x140
+	0x143: 0x3102, 0x144: 0x3413, 0x145: 0x311b,
+	0x146: 0x342c, 0x147: 0x3111, 0x148: 0x3422,
+	0x14c: 0x46d6, 0x14d: 0x4767, 0x14e: 0x3134, 0x14f: 0x3445, 0x150: 0x313e, 0x151: 0x344f,
+	0x154: 0x315c, 0x155: 0x346d, 0x156: 0x3175, 0x157: 0x3486,
+	0x158: 0x3166, 0x159: 0x3477, 0x15a: 0x46f9, 0x15b: 0x478a, 0x15c: 0x317f, 0x15d: 0x3490,
+	0x15e: 0x318e, 0x15f: 0x349f, 0x160: 0x46fe, 0x161: 0x478f, 0x162: 0x31a7, 0x163: 0x34bd,
+	0x164: 0x3198, 0x165: 0x34ae, 0x168: 0x4708, 0x169: 0x4799,
+	0x16a: 0x470d, 0x16b: 0x479e, 0x16c: 0x31c5, 0x16d: 0x34db, 0x16e: 0x31cf, 0x16f: 0x34e5,
+	0x170: 0x31d4, 0x171: 0x34ea, 0x172: 0x31f2, 0x173: 0x3508, 0x174: 0x3215, 0x175: 0x352b,
+	0x176: 0x323d, 0x177: 0x3558, 0x178: 0x3251, 0x179: 0x3260, 0x17a: 0x3580, 0x17b: 0x326a,
+	0x17c: 0x358a, 0x17d: 0x326f, 0x17e: 0x358f, 0x17f: 0xa000,
+	// Block 0x6, offset 0x180
+	0x184: 0x8100, 0x185: 0x8100,
+	0x186: 0x8100,
+	0x18d: 0x2f8b, 0x18e: 0x3297, 0x18f: 0x3099, 0x190: 0x33a5, 0x191: 0x3143,
+	0x192: 0x3454, 0x193: 0x31d9, 0x194: 0x34ef, 0x195: 0x39d2, 0x196: 0x3b61, 0x197: 0x39cb,
+	0x198: 0x3b5a, 0x199: 0x39d9, 0x19a: 0x3b68, 0x19b: 0x39c4, 0x19c: 0x3b53,
+	0x19e: 0x38b3, 0x19f: 0x3a42, 0x1a0: 0x38ac, 0x1a1: 0x3a3b, 0x1a2: 0x35b6, 0x1a3: 0x35c8,
+	0x1a6: 0x3044, 0x1a7: 0x3350, 0x1a8: 0x30c1, 0x1a9: 0x33d2,
+	0x1aa: 0x46ef, 0x1ab: 0x4780, 0x1ac: 0x3993, 0x1ad: 0x3b22, 0x1ae: 0x35da, 0x1af: 0x35e0,
+	0x1b0: 0x33c8, 0x1b4: 0x302b, 0x1b5: 0x3337,
+	0x1b8: 0x30fd, 0x1b9: 0x340e, 0x1ba: 0x38ba, 0x1bb: 0x3a49,
+	0x1bc: 0x35b0, 0x1bd: 0x35c2, 0x1be: 0x35bc, 0x1bf: 0x35ce,
+	// Block 0x7, offset 0x1c0
+	0x1c0: 0x2f90, 0x1c1: 0x329c, 0x1c2: 0x2f95, 0x1c3: 0x32a1, 0x1c4: 0x300d, 0x1c5: 0x3319,
+	0x1c6: 0x3012, 0x1c7: 0x331e, 0x1c8: 0x309e, 0x1c9: 0x33aa, 0x1ca: 0x30a3, 0x1cb: 0x33af,
+	0x1cc: 0x3148, 0x1cd: 0x3459, 0x1ce: 0x314d, 0x1cf: 0x345e, 0x1d0: 0x316b, 0x1d1: 0x347c,
+	0x1d2: 0x3170, 0x1d3: 0x3481, 0x1d4: 0x31de, 0x1d5: 0x34f4, 0x1d6: 0x31e3, 0x1d7: 0x34f9,
+	0x1d8: 0x3189, 0x1d9: 0x349a, 0x1da: 0x31a2, 0x1db: 0x34b8,
+	0x1de: 0x305d, 0x1df: 0x3369,
+	0x1e6: 0x4695, 0x1e7: 0x4726, 0x1e8: 0x46bd, 0x1e9: 0x474e,
+	0x1ea: 0x3962, 0x1eb: 0x3af1, 0x1ec: 0x393f, 0x1ed: 0x3ace, 0x1ee: 0x46db, 0x1ef: 0x476c,
+	0x1f0: 0x395b, 0x1f1: 0x3aea, 0x1f2: 0x3247, 0x1f3: 0x3562,
+	// Block 0x8, offset 0x200
+	0x200: 0x9932, 0x201: 0x9932, 0x202: 0x9932, 0x203: 0x9932, 0x204: 0x9932, 0x205: 0x8132,
+	0x206: 0x9932, 0x207: 0x9932, 0x208: 0x9932, 0x209: 0x9932, 0x20a: 0x9932, 0x20b: 0x9932,
+	0x20c: 0x9932, 0x20d: 0x8132, 0x20e: 0x8132, 0x20f: 0x9932, 0x210: 0x8132, 0x211: 0x9932,
+	0x212: 0x8132, 0x213: 0x9932, 0x214: 0x9932, 0x215: 0x8133, 0x216: 0x812d, 0x217: 0x812d,
+	0x218: 0x812d, 0x219: 0x812d, 0x21a: 0x8133, 0x21b: 0x992b, 0x21c: 0x812d, 0x21d: 0x812d,
+	0x21e: 0x812d, 0x21f: 0x812d, 0x220: 0x812d, 0x221: 0x8129, 0x222: 0x8129, 0x223: 0x992d,
+	0x224: 0x992d, 0x225: 0x992d, 0x226: 0x992d, 0x227: 0x9929, 0x228: 0x9929, 0x229: 0x812d,
+	0x22a: 0x812d, 0x22b: 0x812d, 0x22c: 0x812d, 0x22d: 0x992d, 0x22e: 0x992d, 0x22f: 0x812d,
+	0x230: 0x992d, 0x231: 0x992d, 0x232: 0x812d, 0x233: 0x812d, 0x234: 0x8101, 0x235: 0x8101,
+	0x236: 0x8101, 0x237: 0x8101, 0x238: 0x9901, 0x239: 0x812d, 0x23a: 0x812d, 0x23b: 0x812d,
+	0x23c: 0x812d, 0x23d: 0x8132, 0x23e: 0x8132, 0x23f: 0x8132,
+	// Block 0x9, offset 0x240
+	0x240: 0x49b1, 0x241: 0x49b6, 0x242: 0x9932, 0x243: 0x49bb, 0x244: 0x4a74, 0x245: 0x9936,
+	0x246: 0x8132, 0x247: 0x812d, 0x248: 0x812d, 0x249: 0x812d, 0x24a: 0x8132, 0x24b: 0x8132,
+	0x24c: 0x8132, 0x24d: 0x812d, 0x24e: 0x812d, 0x250: 0x8132, 0x251: 0x8132,
+	0x252: 0x8132, 0x253: 0x812d, 0x254: 0x812d, 0x255: 0x812d, 0x256: 0x812d, 0x257: 0x8132,
+	0x258: 0x8133, 0x259: 0x812d, 0x25a: 0x812d, 0x25b: 0x8132, 0x25c: 0x8134, 0x25d: 0x8135,
+	0x25e: 0x8135, 0x25f: 0x8134, 0x260: 0x8135, 0x261: 0x8135, 0x262: 0x8134, 0x263: 0x8132,
+	0x264: 0x8132, 0x265: 0x8132, 0x266: 0x8132, 0x267: 0x8132, 0x268: 0x8132, 0x269: 0x8132,
+	0x26a: 0x8132, 0x26b: 0x8132, 0x26c: 0x8132, 0x26d: 0x8132, 0x26e: 0x8132, 0x26f: 0x8132,
+	0x274: 0x0170,
+	0x27a: 0x8100,
+	0x27e: 0x0037,
+	// Block 0xa, offset 0x280
+	0x284: 0x8100, 0x285: 0x35a4,
+	0x286: 0x35ec, 0x287: 0x00ce, 0x288: 0x360a, 0x289: 0x3616, 0x28a: 0x3628,
+	0x28c: 0x3646, 0x28e: 0x3658, 0x28f: 0x3676, 0x290: 0x3e0b, 0x291: 0xa000,
+	0x295: 0xa000, 0x297: 0xa000,
+	0x299: 0xa000,
+	0x29f: 0xa000, 0x2a1: 0xa000,
+	0x2a5: 0xa000, 0x2a9: 0xa000,
+	0x2aa: 0x363a, 0x2ab: 0x366a, 0x2ac: 0x4801, 0x2ad: 0x369a, 0x2ae: 0x482b, 0x2af: 0x36ac,
+	0x2b0: 0x3e73, 0x2b1: 0xa000, 0x2b5: 0xa000,
+	0x2b7: 0xa000, 0x2b9: 0xa000,
+	0x2bf: 0xa000,
+	// Block 0xb, offset 0x2c0
+	0x2c0: 0x3724, 0x2c1: 0x3730, 0x2c3: 0x371e,
+	0x2c6: 0xa000, 0x2c7: 0x370c,
+	0x2cc: 0x3760, 0x2cd: 0x3748, 0x2ce: 0x3772, 0x2d0: 0xa000,
+	0x2d3: 0xa000, 0x2d5: 0xa000, 0x2d6: 0xa000, 0x2d7: 0xa000,
+	0x2d8: 0xa000, 0x2d9: 0x3754, 0x2da: 0xa000,
+	0x2de: 0xa000, 0x2e3: 0xa000,
+	0x2e7: 0xa000,
+	0x2eb: 0xa000, 0x2ed: 0xa000,
+	0x2f0: 0xa000, 0x2f3: 0xa000, 0x2f5: 0xa000,
+	0x2f6: 0xa000, 0x2f7: 0xa000, 0x2f8: 0xa000, 0x2f9: 0x37d8, 0x2fa: 0xa000,
+	0x2fe: 0xa000,
+	// Block 0xc, offset 0x300
+	0x301: 0x3736, 0x302: 0x37ba,
+	0x310: 0x3712, 0x311: 0x3796,
+	0x312: 0x3718, 0x313: 0x379c, 0x316: 0x372a, 0x317: 0x37ae,
+	0x318: 0xa000, 0x319: 0xa000, 0x31a: 0x382c, 0x31b: 0x3832, 0x31c: 0x373c, 0x31d: 0x37c0,
+	0x31e: 0x3742, 0x31f: 0x37c6, 0x322: 0x374e, 0x323: 0x37d2,
+	0x324: 0x375a, 0x325: 0x37de, 0x326: 0x3766, 0x327: 0x37ea, 0x328: 0xa000, 0x329: 0xa000,
+	0x32a: 0x3838, 0x32b: 0x383e, 0x32c: 0x3790, 0x32d: 0x3814, 0x32e: 0x376c, 0x32f: 0x37f0,
+	0x330: 0x3778, 0x331: 0x37fc, 0x332: 0x377e, 0x333: 0x3802, 0x334: 0x3784, 0x335: 0x3808,
+	0x338: 0x378a, 0x339: 0x380e,
+	// Block 0xd, offset 0x340
+	0x351: 0x812d,
+	0x352: 0x8132, 0x353: 0x8132, 0x354: 0x8132, 0x355: 0x8132, 0x356: 0x812d, 0x357: 0x8132,
+	0x358: 0x8132, 0x359: 0x8132, 0x35a: 0x812e, 0x35b: 0x812d, 0x35c: 0x8132, 0x35d: 0x8132,
+	0x35e: 0x8132, 0x35f: 0x8132, 0x360: 0x8132, 0x361: 0x8132, 0x362: 0x812d, 0x363: 0x812d,
+	0x364: 0x812d, 0x365: 0x812d, 0x366: 0x812d, 0x367: 0x812d, 0x368: 0x8132, 0x369: 0x8132,
+	0x36a: 0x812d, 0x36b: 0x8132, 0x36c: 0x8132, 0x36d: 0x812e, 0x36e: 0x8131, 0x36f: 0x8132,
+	0x370: 0x8105, 0x371: 0x8106, 0x372: 0x8107, 0x373: 0x8108, 0x374: 0x8109, 0x375: 0x810a,
+	0x376: 0x810b, 0x377: 0x810c, 0x378: 0x810d, 0x379: 0x810e, 0x37a: 0x810e, 0x37b: 0x810f,
+	0x37c: 0x8110, 0x37d: 0x8111, 0x37f: 0x8112,
+	// Block 0xe, offset 0x380
+	0x388: 0xa000, 0x38a: 0xa000, 0x38b: 0x8116,
+	0x38c: 0x8117, 0x38d: 0x8118, 0x38e: 0x8119, 0x38f: 0x811a, 0x390: 0x811b, 0x391: 0x811c,
+	0x392: 0x811d, 0x393: 0x9932, 0x394: 0x9932, 0x395: 0x992d, 0x396: 0x812d, 0x397: 0x8132,
+	0x398: 0x8132, 0x399: 0x8132, 0x39a: 0x8132, 0x39b: 0x8132, 0x39c: 0x812d, 0x39d: 0x8132,
+	0x39e: 0x8132, 0x39f: 0x812d,
+	0x3b0: 0x811e,
+	// Block 0xf, offset 0x3c0
+	0x3d3: 0x812d, 0x3d4: 0x8132, 0x3d5: 0x8132, 0x3d6: 0x8132, 0x3d7: 0x8132,
+	0x3d8: 0x8132, 0x3d9: 0x8132, 0x3da: 0x8132, 0x3db: 0x8132, 0x3dc: 0x8132, 0x3dd: 0x8132,
+	0x3de: 0x8132, 0x3df: 0x8132, 0x3e0: 0x8132, 0x3e1: 0x8132, 0x3e3: 0x812d,
+	0x3e4: 0x8132, 0x3e5: 0x8132, 0x3e6: 0x812d, 0x3e7: 0x8132, 0x3e8: 0x8132, 0x3e9: 0x812d,
+	0x3ea: 0x8132, 0x3eb: 0x8132, 0x3ec: 0x8132, 0x3ed: 0x812d, 0x3ee: 0x812d, 0x3ef: 0x812d,
+	0x3f0: 0x8116, 0x3f1: 0x8117, 0x3f2: 0x8118, 0x3f3: 0x8132, 0x3f4: 0x8132, 0x3f5: 0x8132,
+	0x3f6: 0x812d, 0x3f7: 0x8132, 0x3f8: 0x8132, 0x3f9: 0x812d, 0x3fa: 0x812d, 0x3fb: 0x8132,
+	0x3fc: 0x8132, 0x3fd: 0x8132, 0x3fe: 0x8132, 0x3ff: 0x8132,
+	// Block 0x10, offset 0x400
+	0x405: 0xa000,
+	0x406: 0x2d29, 0x407: 0xa000, 0x408: 0x2d31, 0x409: 0xa000, 0x40a: 0x2d39, 0x40b: 0xa000,
+	0x40c: 0x2d41, 0x40d: 0xa000, 0x40e: 0x2d49, 0x411: 0xa000,
+	0x412: 0x2d51,
+	0x434: 0x8102, 0x435: 0x9900,
+	0x43a: 0xa000, 0x43b: 0x2d59,
+	0x43c: 0xa000, 0x43d: 0x2d61, 0x43e: 0xa000, 0x43f: 0xa000,
+	// Block 0x11, offset 0x440
+	0x440: 0x8132, 0x441: 0x8132, 0x442: 0x812d, 0x443: 0x8132, 0x444: 0x8132, 0x445: 0x8132,
+	0x446: 0x8132, 0x447: 0x8132, 0x448: 0x8132, 0x449: 0x8132, 0x44a: 0x812d, 0x44b: 0x8132,
+	0x44c: 0x8132, 0x44d: 0x8135, 0x44e: 0x812a, 0x44f: 0x812d, 0x450: 0x8129, 0x451: 0x8132,
+	0x452: 0x8132, 0x453: 0x8132, 0x454: 0x8132, 0x455: 0x8132, 0x456: 0x8132, 0x457: 0x8132,
+	0x458: 0x8132, 0x459: 0x8132, 0x45a: 0x8132, 0x45b: 0x8132, 0x45c: 0x8132, 0x45d: 0x8132,
+	0x45e: 0x8132, 0x45f: 0x8132, 0x460: 0x8132, 0x461: 0x8132, 0x462: 0x8132, 0x463: 0x8132,
+	0x464: 0x8132, 0x465: 0x8132, 0x466: 0x8132, 0x467: 0x8132, 0x468: 0x8132, 0x469: 0x8132,
+	0x46a: 0x8132, 0x46b: 0x8132, 0x46c: 0x8132, 0x46d: 0x8132, 0x46e: 0x8132, 0x46f: 0x8132,
+	0x470: 0x8132, 0x471: 0x8132, 0x472: 0x8132, 0x473: 0x8132, 0x474: 0x8132, 0x475: 0x8132,
+	0x476: 0x8133, 0x477: 0x8131, 0x478: 0x8131, 0x479: 0x812d, 0x47b: 0x8132,
+	0x47c: 0x8134, 0x47d: 0x812d, 0x47e: 0x8132, 0x47f: 0x812d,
+	// Block 0x12, offset 0x480
+	0x480: 0x2f9a, 0x481: 0x32a6, 0x482: 0x2fa4, 0x483: 0x32b0, 0x484: 0x2fa9, 0x485: 0x32b5,
+	0x486: 0x2fae, 0x487: 0x32ba, 0x488: 0x38cf, 0x489: 0x3a5e, 0x48a: 0x2fc7, 0x48b: 0x32d3,
+	0x48c: 0x2fd1, 0x48d: 0x32dd, 0x48e: 0x2fe0, 0x48f: 0x32ec, 0x490: 0x2fd6, 0x491: 0x32e2,
+	0x492: 0x2fdb, 0x493: 0x32e7, 0x494: 0x38f2, 0x495: 0x3a81, 0x496: 0x38f9, 0x497: 0x3a88,
+	0x498: 0x301c, 0x499: 0x3328, 0x49a: 0x3021, 0x49b: 0x332d, 0x49c: 0x3907, 0x49d: 0x3a96,
+	0x49e: 0x3026, 0x49f: 0x3332, 0x4a0: 0x3035, 0x4a1: 0x3341, 0x4a2: 0x3053, 0x4a3: 0x335f,
+	0x4a4: 0x3062, 0x4a5: 0x336e, 0x4a6: 0x3058, 0x4a7: 0x3364, 0x4a8: 0x3067, 0x4a9: 0x3373,
+	0x4aa: 0x306c, 0x4ab: 0x3378, 0x4ac: 0x30b2, 0x4ad: 0x33be, 0x4ae: 0x390e, 0x4af: 0x3a9d,
+	0x4b0: 0x30bc, 0x4b1: 0x33cd, 0x4b2: 0x30c6, 0x4b3: 0x33d7, 0x4b4: 0x30d0, 0x4b5: 0x33e1,
+	0x4b6: 0x46c7, 0x4b7: 0x4758, 0x4b8: 0x3915, 0x4b9: 0x3aa4, 0x4ba: 0x30e9, 0x4bb: 0x33fa,
+	0x4bc: 0x30e4, 0x4bd: 0x33f5, 0x4be: 0x30ee, 0x4bf: 0x33ff,
+	// Block 0x13, offset 0x4c0
+	0x4c0: 0x30f3, 0x4c1: 0x3404, 0x4c2: 0x30f8, 0x4c3: 0x3409, 0x4c4: 0x310c, 0x4c5: 0x341d,
+	0x4c6: 0x3116, 0x4c7: 0x3427, 0x4c8: 0x3125, 0x4c9: 0x3436, 0x4ca: 0x3120, 0x4cb: 0x3431,
+	0x4cc: 0x3938, 0x4cd: 0x3ac7, 0x4ce: 0x3946, 0x4cf: 0x3ad5, 0x4d0: 0x394d, 0x4d1: 0x3adc,
+	0x4d2: 0x3954, 0x4d3: 0x3ae3, 0x4d4: 0x3152, 0x4d5: 0x3463, 0x4d6: 0x3157, 0x4d7: 0x3468,
+	0x4d8: 0x3161, 0x4d9: 0x3472, 0x4da: 0x46f4, 0x4db: 0x4785, 0x4dc: 0x399a, 0x4dd: 0x3b29,
+	0x4de: 0x317a, 0x4df: 0x348b, 0x4e0: 0x3184, 0x4e1: 0x3495, 0x4e2: 0x4703, 0x4e3: 0x4794,
+	0x4e4: 0x39a1, 0x4e5: 0x3b30, 0x4e6: 0x39a8, 0x4e7: 0x3b37, 0x4e8: 0x39af, 0x4e9: 0x3b3e,
+	0x4ea: 0x3193, 0x4eb: 0x34a4, 0x4ec: 0x319d, 0x4ed: 0x34b3, 0x4ee: 0x31b1, 0x4ef: 0x34c7,
+	0x4f0: 0x31ac, 0x4f1: 0x34c2, 0x4f2: 0x31ed, 0x4f3: 0x3503, 0x4f4: 0x31fc, 0x4f5: 0x3512,
+	0x4f6: 0x31f7, 0x4f7: 0x350d, 0x4f8: 0x39b6, 0x4f9: 0x3b45, 0x4fa: 0x39bd, 0x4fb: 0x3b4c,
+	0x4fc: 0x3201, 0x4fd: 0x3517, 0x4fe: 0x3206, 0x4ff: 0x351c,
+	// Block 0x14, offset 0x500
+	0x500: 0x320b, 0x501: 0x3521, 0x502: 0x3210, 0x503: 0x3526, 0x504: 0x321f, 0x505: 0x3535,
+	0x506: 0x321a, 0x507: 0x3530, 0x508: 0x3224, 0x509: 0x353f, 0x50a: 0x3229, 0x50b: 0x3544,
+	0x50c: 0x322e, 0x50d: 0x3549, 0x50e: 0x324c, 0x50f: 0x3567, 0x510: 0x3265, 0x511: 0x3585,
+	0x512: 0x3274, 0x513: 0x3594, 0x514: 0x3279, 0x515: 0x3599, 0x516: 0x337d, 0x517: 0x34a9,
+	0x518: 0x353a, 0x519: 0x3576, 0x51b: 0x35d4,
+	0x520: 0x46a4, 0x521: 0x4735, 0x522: 0x2f86, 0x523: 0x3292,
+	0x524: 0x387b, 0x525: 0x3a0a, 0x526: 0x3874, 0x527: 0x3a03, 0x528: 0x3889, 0x529: 0x3a18,
+	0x52a: 0x3882, 0x52b: 0x3a11, 0x52c: 0x38c1, 0x52d: 0x3a50, 0x52e: 0x3897, 0x52f: 0x3a26,
+	0x530: 0x3890, 0x531: 0x3a1f, 0x532: 0x38a5, 0x533: 0x3a34, 0x534: 0x389e, 0x535: 0x3a2d,
+	0x536: 0x38c8, 0x537: 0x3a57, 0x538: 0x46b8, 0x539: 0x4749, 0x53a: 0x3003, 0x53b: 0x330f,
+	0x53c: 0x2fef, 0x53d: 0x32fb, 0x53e: 0x38dd, 0x53f: 0x3a6c,
+	// Block 0x15, offset 0x540
+	0x540: 0x38d6, 0x541: 0x3a65, 0x542: 0x38eb, 0x543: 0x3a7a, 0x544: 0x38e4, 0x545: 0x3a73,
+	0x546: 0x3900, 0x547: 0x3a8f, 0x548: 0x3094, 0x549: 0x33a0, 0x54a: 0x30a8, 0x54b: 0x33b4,
+	0x54c: 0x46ea, 0x54d: 0x477b, 0x54e: 0x3139, 0x54f: 0x344a, 0x550: 0x3923, 0x551: 0x3ab2,
+	0x552: 0x391c, 0x553: 0x3aab, 0x554: 0x3931, 0x555: 0x3ac0, 0x556: 0x392a, 0x557: 0x3ab9,
+	0x558: 0x398c, 0x559: 0x3b1b, 0x55a: 0x3970, 0x55b: 0x3aff, 0x55c: 0x3969, 0x55d: 0x3af8,
+	0x55e: 0x397e, 0x55f: 0x3b0d, 0x560: 0x3977, 0x561: 0x3b06, 0x562: 0x3985, 0x563: 0x3b14,
+	0x564: 0x31e8, 0x565: 0x34fe, 0x566: 0x31ca, 0x567: 0x34e0, 0x568: 0x39e7, 0x569: 0x3b76,
+	0x56a: 0x39e0, 0x56b: 0x3b6f, 0x56c: 0x39f5, 0x56d: 0x3b84, 0x56e: 0x39ee, 0x56f: 0x3b7d,
+	0x570: 0x39fc, 0x571: 0x3b8b, 0x572: 0x3233, 0x573: 0x354e, 0x574: 0x325b, 0x575: 0x357b,
+	0x576: 0x3256, 0x577: 0x3571, 0x578: 0x3242, 0x579: 0x355d,
+	// Block 0x16, offset 0x580
+	0x580: 0x4807, 0x581: 0x480d, 0x582: 0x4921, 0x583: 0x4939, 0x584: 0x4929, 0x585: 0x4941,
+	0x586: 0x4931, 0x587: 0x4949, 0x588: 0x47ad, 0x589: 0x47b3, 0x58a: 0x4891, 0x58b: 0x48a9,
+	0x58c: 0x4899, 0x58d: 0x48b1, 0x58e: 0x48a1, 0x58f: 0x48b9, 0x590: 0x4819, 0x591: 0x481f,
+	0x592: 0x3dbb, 0x593: 0x3dcb, 0x594: 0x3dc3, 0x595: 0x3dd3,
+	0x598: 0x47b9, 0x599: 0x47bf, 0x59a: 0x3ceb, 0x59b: 0x3cfb, 0x59c: 0x3cf3, 0x59d: 0x3d03,
+	0x5a0: 0x4831, 0x5a1: 0x4837, 0x5a2: 0x4951, 0x5a3: 0x4969,
+	0x5a4: 0x4959, 0x5a5: 0x4971, 0x5a6: 0x4961, 0x5a7: 0x4979, 0x5a8: 0x47c5, 0x5a9: 0x47cb,
+	0x5aa: 0x48c1, 0x5ab: 0x48d9, 0x5ac: 0x48c9, 0x5ad: 0x48e1, 0x5ae: 0x48d1, 0x5af: 0x48e9,
+	0x5b0: 0x4849, 0x5b1: 0x484f, 0x5b2: 0x3e1b, 0x5b3: 0x3e33, 0x5b4: 0x3e23, 0x5b5: 0x3e3b,
+	0x5b6: 0x3e2b, 0x5b7: 0x3e43, 0x5b8: 0x47d1, 0x5b9: 0x47d7, 0x5ba: 0x3d1b, 0x5bb: 0x3d33,
+	0x5bc: 0x3d23, 0x5bd: 0x3d3b, 0x5be: 0x3d2b, 0x5bf: 0x3d43,
+	// Block 0x17, offset 0x5c0
+	0x5c0: 0x4855, 0x5c1: 0x485b, 0x5c2: 0x3e4b, 0x5c3: 0x3e5b, 0x5c4: 0x3e53, 0x5c5: 0x3e63,
+	0x5c8: 0x47dd, 0x5c9: 0x47e3, 0x5ca: 0x3d4b, 0x5cb: 0x3d5b,
+	0x5cc: 0x3d53, 0x5cd: 0x3d63, 0x5d0: 0x4867, 0x5d1: 0x486d,
+	0x5d2: 0x3e83, 0x5d3: 0x3e9b, 0x5d4: 0x3e8b, 0x5d5: 0x3ea3, 0x5d6: 0x3e93, 0x5d7: 0x3eab,
+	0x5d9: 0x47e9, 0x5db: 0x3d6b, 0x5dd: 0x3d73,
+	0x5df: 0x3d7b, 0x5e0: 0x487f, 0x5e1: 0x4885, 0x5e2: 0x4981, 0x5e3: 0x4999,
+	0x5e4: 0x4989, 0x5e5: 0x49a1, 0x5e6: 0x4991, 0x5e7: 0x49a9, 0x5e8: 0x47ef, 0x5e9: 0x47f5,
+	0x5ea: 0x48f1, 0x5eb: 0x4909, 0x5ec: 0x48f9, 0x5ed: 0x4911, 0x5ee: 0x4901, 0x5ef: 0x4919,
+	0x5f0: 0x47fb, 0x5f1: 0x4321, 0x5f2: 0x3694, 0x5f3: 0x4327, 0x5f4: 0x4825, 0x5f5: 0x432d,
+	0x5f6: 0x36a6, 0x5f7: 0x4333, 0x5f8: 0x36c4, 0x5f9: 0x4339, 0x5fa: 0x36dc, 0x5fb: 0x433f,
+	0x5fc: 0x4873, 0x5fd: 0x4345,
+	// Block 0x18, offset 0x600
+	0x600: 0x3da3, 0x601: 0x3dab, 0x602: 0x4187, 0x603: 0x41a5, 0x604: 0x4191, 0x605: 0x41af,
+	0x606: 0x419b, 0x607: 0x41b9, 0x608: 0x3cdb, 0x609: 0x3ce3, 0x60a: 0x40d3, 0x60b: 0x40f1,
+	0x60c: 0x40dd, 0x60d: 0x40fb, 0x60e: 0x40e7, 0x60f: 0x4105, 0x610: 0x3deb, 0x611: 0x3df3,
+	0x612: 0x41c3, 0x613: 0x41e1, 0x614: 0x41cd, 0x615: 0x41eb, 0x616: 0x41d7, 0x617: 0x41f5,
+	0x618: 0x3d0b, 0x619: 0x3d13, 0x61a: 0x410f, 0x61b: 0x412d, 0x61c: 0x4119, 0x61d: 0x4137,
+	0x61e: 0x4123, 0x61f: 0x4141, 0x620: 0x3ec3, 0x621: 0x3ecb, 0x622: 0x41ff, 0x623: 0x421d,
+	0x624: 0x4209, 0x625: 0x4227, 0x626: 0x4213, 0x627: 0x4231, 0x628: 0x3d83, 0x629: 0x3d8b,
+	0x62a: 0x414b, 0x62b: 0x4169, 0x62c: 0x4155, 0x62d: 0x4173, 0x62e: 0x415f, 0x62f: 0x417d,
+	0x630: 0x3688, 0x631: 0x3682, 0x632: 0x3d93, 0x633: 0x368e, 0x634: 0x3d9b,
+	0x636: 0x4813, 0x637: 0x3db3, 0x638: 0x35f8, 0x639: 0x35f2, 0x63a: 0x35e6, 0x63b: 0x42f1,
+	0x63c: 0x35fe, 0x63d: 0x8100, 0x63e: 0x01d3, 0x63f: 0xa100,
+	// Block 0x19, offset 0x640
+	0x640: 0x8100, 0x641: 0x35aa, 0x642: 0x3ddb, 0x643: 0x36a0, 0x644: 0x3de3,
+	0x646: 0x483d, 0x647: 0x3dfb, 0x648: 0x3604, 0x649: 0x42f7, 0x64a: 0x3610, 0x64b: 0x42fd,
+	0x64c: 0x361c, 0x64d: 0x3b92, 0x64e: 0x3b99, 0x64f: 0x3ba0, 0x650: 0x36b8, 0x651: 0x36b2,
+	0x652: 0x3e03, 0x653: 0x44e7, 0x656: 0x36be, 0x657: 0x3e13,
+	0x658: 0x3634, 0x659: 0x362e, 0x65a: 0x3622, 0x65b: 0x4303, 0x65d: 0x3ba7,
+	0x65e: 0x3bae, 0x65f: 0x3bb5, 0x660: 0x36ee, 0x661: 0x36e8, 0x662: 0x3e6b, 0x663: 0x44ef,
+	0x664: 0x36d0, 0x665: 0x36d6, 0x666: 0x36f4, 0x667: 0x3e7b, 0x668: 0x3664, 0x669: 0x365e,
+	0x66a: 0x3652, 0x66b: 0x430f, 0x66c: 0x364c, 0x66d: 0x359e, 0x66e: 0x42eb, 0x66f: 0x0081,
+	0x672: 0x3eb3, 0x673: 0x36fa, 0x674: 0x3ebb,
+	0x676: 0x488b, 0x677: 0x3ed3, 0x678: 0x3640, 0x679: 0x4309, 0x67a: 0x3670, 0x67b: 0x431b,
+	0x67c: 0x367c, 0x67d: 0x4259, 0x67e: 0xa100,
+	// Block 0x1a, offset 0x680
+	0x681: 0x3c09, 0x683: 0xa000, 0x684: 0x3c10, 0x685: 0xa000,
+	0x687: 0x3c17, 0x688: 0xa000, 0x689: 0x3c1e,
+	0x68d: 0xa000,
+	0x6a0: 0x2f68, 0x6a1: 0xa000, 0x6a2: 0x3c2c,
+	0x6a4: 0xa000, 0x6a5: 0xa000,
+	0x6ad: 0x3c25, 0x6ae: 0x2f63, 0x6af: 0x2f6d,
+	0x6b0: 0x3c33, 0x6b1: 0x3c3a, 0x6b2: 0xa000, 0x6b3: 0xa000, 0x6b4: 0x3c41, 0x6b5: 0x3c48,
+	0x6b6: 0xa000, 0x6b7: 0xa000, 0x6b8: 0x3c4f, 0x6b9: 0x3c56, 0x6ba: 0xa000, 0x6bb: 0xa000,
+	0x6bc: 0xa000, 0x6bd: 0xa000,
+	// Block 0x1b, offset 0x6c0
+	0x6c0: 0x3c5d, 0x6c1: 0x3c64, 0x6c2: 0xa000, 0x6c3: 0xa000, 0x6c4: 0x3c79, 0x6c5: 0x3c80,
+	0x6c6: 0xa000, 0x6c7: 0xa000, 0x6c8: 0x3c87, 0x6c9: 0x3c8e,
+	0x6d1: 0xa000,
+	0x6d2: 0xa000,
+	0x6e2: 0xa000,
+	0x6e8: 0xa000, 0x6e9: 0xa000,
+	0x6eb: 0xa000, 0x6ec: 0x3ca3, 0x6ed: 0x3caa, 0x6ee: 0x3cb1, 0x6ef: 0x3cb8,
+	0x6f2: 0xa000, 0x6f3: 0xa000, 0x6f4: 0xa000, 0x6f5: 0xa000,
+	// Block 0x1c, offset 0x700
+	0x706: 0xa000, 0x70b: 0xa000,
+	0x70c: 0x3f0b, 0x70d: 0xa000, 0x70e: 0x3f13, 0x70f: 0xa000, 0x710: 0x3f1b, 0x711: 0xa000,
+	0x712: 0x3f23, 0x713: 0xa000, 0x714: 0x3f2b, 0x715: 0xa000, 0x716: 0x3f33, 0x717: 0xa000,
+	0x718: 0x3f3b, 0x719: 0xa000, 0x71a: 0x3f43, 0x71b: 0xa000, 0x71c: 0x3f4b, 0x71d: 0xa000,
+	0x71e: 0x3f53, 0x71f: 0xa000, 0x720: 0x3f5b, 0x721: 0xa000, 0x722: 0x3f63,
+	0x724: 0xa000, 0x725: 0x3f6b, 0x726: 0xa000, 0x727: 0x3f73, 0x728: 0xa000, 0x729: 0x3f7b,
+	0x72f: 0xa000,
+	0x730: 0x3f83, 0x731: 0x3f8b, 0x732: 0xa000, 0x733: 0x3f93, 0x734: 0x3f9b, 0x735: 0xa000,
+	0x736: 0x3fa3, 0x737: 0x3fab, 0x738: 0xa000, 0x739: 0x3fb3, 0x73a: 0x3fbb, 0x73b: 0xa000,
+	0x73c: 0x3fc3, 0x73d: 0x3fcb,
+	// Block 0x1d, offset 0x740
+	0x754: 0x3f03,
+	0x759: 0x9903, 0x75a: 0x9903, 0x75b: 0x8100, 0x75c: 0x8100, 0x75d: 0xa000,
+	0x75e: 0x3fd3,
+	0x766: 0xa000,
+	0x76b: 0xa000, 0x76c: 0x3fe3, 0x76d: 0xa000, 0x76e: 0x3feb, 0x76f: 0xa000,
+	0x770: 0x3ff3, 0x771: 0xa000, 0x772: 0x3ffb, 0x773: 0xa000, 0x774: 0x4003, 0x775: 0xa000,
+	0x776: 0x400b, 0x777: 0xa000, 0x778: 0x4013, 0x779: 0xa000, 0x77a: 0x401b, 0x77b: 0xa000,
+	0x77c: 0x4023, 0x77d: 0xa000, 0x77e: 0x402b, 0x77f: 0xa000,
+	// Block 0x1e, offset 0x780
+	0x780: 0x4033, 0x781: 0xa000, 0x782: 0x403b, 0x784: 0xa000, 0x785: 0x4043,
+	0x786: 0xa000, 0x787: 0x404b, 0x788: 0xa000, 0x789: 0x4053,
+	0x78f: 0xa000, 0x790: 0x405b, 0x791: 0x4063,
+	0x792: 0xa000, 0x793: 0x406b, 0x794: 0x4073, 0x795: 0xa000, 0x796: 0x407b, 0x797: 0x4083,
+	0x798: 0xa000, 0x799: 0x408b, 0x79a: 0x4093, 0x79b: 0xa000, 0x79c: 0x409b, 0x79d: 0x40a3,
+	0x7af: 0xa000,
+	0x7b0: 0xa000, 0x7b1: 0xa000, 0x7b2: 0xa000, 0x7b4: 0x3fdb,
+	0x7b7: 0x40ab, 0x7b8: 0x40b3, 0x7b9: 0x40bb, 0x7ba: 0x40c3,
+	0x7bd: 0xa000, 0x7be: 0x40cb,
+	// Block 0x1f, offset 0x7c0
+	0x7c0: 0x1377, 0x7c1: 0x0cfb, 0x7c2: 0x13d3, 0x7c3: 0x139f, 0x7c4: 0x0e57, 0x7c5: 0x06eb,
+	0x7c6: 0x08df, 0x7c7: 0x162b, 0x7c8: 0x162b, 0x7c9: 0x0a0b, 0x7ca: 0x145f, 0x7cb: 0x0943,
+	0x7cc: 0x0a07, 0x7cd: 0x0bef, 0x7ce: 0x0fcf, 0x7cf: 0x115f, 0x7d0: 0x1297, 0x7d1: 0x12d3,
+	0x7d2: 0x1307, 0x7d3: 0x141b, 0x7d4: 0x0d73, 0x7d5: 0x0dff, 0x7d6: 0x0eab, 0x7d7: 0x0f43,
+	0x7d8: 0x125f, 0x7d9: 0x1447, 0x7da: 0x1573, 0x7db: 0x070f, 0x7dc: 0x08b3, 0x7dd: 0x0d87,
+	0x7de: 0x0ecf, 0x7df: 0x1293, 0x7e0: 0x15c3, 0x7e1: 0x0ab3, 0x7e2: 0x0e77, 0x7e3: 0x1283,
+	0x7e4: 0x1317, 0x7e5: 0x0c23, 0x7e6: 0x11bb, 0x7e7: 0x12df, 0x7e8: 0x0b1f, 0x7e9: 0x0d0f,
+	0x7ea: 0x0e17, 0x7eb: 0x0f1b, 0x7ec: 0x1427, 0x7ed: 0x074f, 0x7ee: 0x07e7, 0x7ef: 0x0853,
+	0x7f0: 0x0c8b, 0x7f1: 0x0d7f, 0x7f2: 0x0ecb, 0x7f3: 0x0fef, 0x7f4: 0x1177, 0x7f5: 0x128b,
+	0x7f6: 0x12a3, 0x7f7: 0x13c7, 0x7f8: 0x14ef, 0x7f9: 0x15a3, 0x7fa: 0x15bf, 0x7fb: 0x102b,
+	0x7fc: 0x106b, 0x7fd: 0x1123, 0x7fe: 0x1243, 0x7ff: 0x147b,
+	// Block 0x20, offset 0x800
+	0x800: 0x15cb, 0x801: 0x134b, 0x802: 0x09c7, 0x803: 0x0b3b, 0x804: 0x10db, 0x805: 0x119b,
+	0x806: 0x0eff, 0x807: 0x1033, 0x808: 0x1397, 0x809: 0x14e7, 0x80a: 0x09c3, 0x80b: 0x0a8f,
+	0x80c: 0x0d77, 0x80d: 0x0e2b, 0x80e: 0x0e5f, 0x80f: 0x1113, 0x810: 0x113b, 0x811: 0x14a7,
+	0x812: 0x084f, 0x813: 0x11a7, 0x814: 0x07f3, 0x815: 0x07ef, 0x816: 0x1097, 0x817: 0x1127,
+	0x818: 0x125b, 0x819: 0x14af, 0x81a: 0x1367, 0x81b: 0x0c27, 0x81c: 0x0d73, 0x81d: 0x1357,
+	0x81e: 0x06f7, 0x81f: 0x0a63, 0x820: 0x0b93, 0x821: 0x0f2f, 0x822: 0x0faf, 0x823: 0x0873,
+	0x824: 0x103b, 0x825: 0x075f, 0x826: 0x0b77, 0x827: 0x06d7, 0x828: 0x0deb, 0x829: 0x0ca3,
+	0x82a: 0x110f, 0x82b: 0x08c7, 0x82c: 0x09b3, 0x82d: 0x0ffb, 0x82e: 0x1263, 0x82f: 0x133b,
+	0x830: 0x0db7, 0x831: 0x13f7, 0x832: 0x0de3, 0x833: 0x0c37, 0x834: 0x121b, 0x835: 0x0c57,
+	0x836: 0x0fab, 0x837: 0x072b, 0x838: 0x07a7, 0x839: 0x07eb, 0x83a: 0x0d53, 0x83b: 0x10fb,
+	0x83c: 0x11f3, 0x83d: 0x1347, 0x83e: 0x145b, 0x83f: 0x085b,
+	// Block 0x21, offset 0x840
+	0x840: 0x090f, 0x841: 0x0a17, 0x842: 0x0b2f, 0x843: 0x0cbf, 0x844: 0x0e7b, 0x845: 0x103f,
+	0x846: 0x1497, 0x847: 0x157b, 0x848: 0x15cf, 0x849: 0x15e7, 0x84a: 0x0837, 0x84b: 0x0cf3,
+	0x84c: 0x0da3, 0x84d: 0x13eb, 0x84e: 0x0afb, 0x84f: 0x0bd7, 0x850: 0x0bf3, 0x851: 0x0c83,
+	0x852: 0x0e6b, 0x853: 0x0eb7, 0x854: 0x0f67, 0x855: 0x108b, 0x856: 0x112f, 0x857: 0x1193,
+	0x858: 0x13db, 0x859: 0x126b, 0x85a: 0x1403, 0x85b: 0x147f, 0x85c: 0x080f, 0x85d: 0x083b,
+	0x85e: 0x0923, 0x85f: 0x0ea7, 0x860: 0x12f3, 0x861: 0x133b, 0x862: 0x0b1b, 0x863: 0x0b8b,
+	0x864: 0x0c4f, 0x865: 0x0daf, 0x866: 0x10d7, 0x867: 0x0f23, 0x868: 0x073b, 0x869: 0x097f,
+	0x86a: 0x0a63, 0x86b: 0x0ac7, 0x86c: 0x0b97, 0x86d: 0x0f3f, 0x86e: 0x0f5b, 0x86f: 0x116b,
+	0x870: 0x118b, 0x871: 0x1463, 0x872: 0x14e3, 0x873: 0x14f3, 0x874: 0x152f, 0x875: 0x0753,
+	0x876: 0x107f, 0x877: 0x144f, 0x878: 0x14cb, 0x879: 0x0baf, 0x87a: 0x0717, 0x87b: 0x0777,
+	0x87c: 0x0a67, 0x87d: 0x0a87, 0x87e: 0x0caf, 0x87f: 0x0d73,
+	// Block 0x22, offset 0x880
+	0x880: 0x0ec3, 0x881: 0x0fcb, 0x882: 0x1277, 0x883: 0x1417, 0x884: 0x1623, 0x885: 0x0ce3,
+	0x886: 0x14a3, 0x887: 0x0833, 0x888: 0x0d2f, 0x889: 0x0d3b, 0x88a: 0x0e0f, 0x88b: 0x0e47,
+	0x88c: 0x0f4b, 0x88d: 0x0fa7, 0x88e: 0x1027, 0x88f: 0x110b, 0x890: 0x153b, 0x891: 0x07af,
+	0x892: 0x0c03, 0x893: 0x14b3, 0x894: 0x0767, 0x895: 0x0aab, 0x896: 0x0e2f, 0x897: 0x13df,
+	0x898: 0x0b67, 0x899: 0x0bb7, 0x89a: 0x0d43, 0x89b: 0x0f2f, 0x89c: 0x14bb, 0x89d: 0x0817,
+	0x89e: 0x08ff, 0x89f: 0x0a97, 0x8a0: 0x0cd3, 0x8a1: 0x0d1f, 0x8a2: 0x0d5f, 0x8a3: 0x0df3,
+	0x8a4: 0x0f47, 0x8a5: 0x0fbb, 0x8a6: 0x1157, 0x8a7: 0x12f7, 0x8a8: 0x1303, 0x8a9: 0x1457,
+	0x8aa: 0x14d7, 0x8ab: 0x0883, 0x8ac: 0x0e4b, 0x8ad: 0x0903, 0x8ae: 0x0ec7, 0x8af: 0x0f6b,
+	0x8b0: 0x1287, 0x8b1: 0x14bf, 0x8b2: 0x15ab, 0x8b3: 0x15d3, 0x8b4: 0x0d37, 0x8b5: 0x0e27,
+	0x8b6: 0x11c3, 0x8b7: 0x10b7, 0x8b8: 0x10c3, 0x8b9: 0x10e7, 0x8ba: 0x0f17, 0x8bb: 0x0e9f,
+	0x8bc: 0x1363, 0x8bd: 0x0733, 0x8be: 0x122b, 0x8bf: 0x081b,
+	// Block 0x23, offset 0x8c0
+	0x8c0: 0x080b, 0x8c1: 0x0b0b, 0x8c2: 0x0c2b, 0x8c3: 0x10f3, 0x8c4: 0x0a53, 0x8c5: 0x0e03,
+	0x8c6: 0x0cef, 0x8c7: 0x13e7, 0x8c8: 0x12e7, 0x8c9: 0x14ab, 0x8ca: 0x1323, 0x8cb: 0x0b27,
+	0x8cc: 0x0787, 0x8cd: 0x095b, 0x8d0: 0x09af,
+	0x8d2: 0x0cdf, 0x8d5: 0x07f7, 0x8d6: 0x0f1f, 0x8d7: 0x0fe3,
+	0x8d8: 0x1047, 0x8d9: 0x1063, 0x8da: 0x1067, 0x8db: 0x107b, 0x8dc: 0x14fb, 0x8dd: 0x10eb,
+	0x8de: 0x116f, 0x8e0: 0x128f, 0x8e2: 0x1353,
+	0x8e5: 0x1407, 0x8e6: 0x1433,
+	0x8ea: 0x154f, 0x8eb: 0x1553, 0x8ec: 0x1557, 0x8ed: 0x15bb, 0x8ee: 0x142b, 0x8ef: 0x14c7,
+	0x8f0: 0x0757, 0x8f1: 0x077b, 0x8f2: 0x078f, 0x8f3: 0x084b, 0x8f4: 0x0857, 0x8f5: 0x0897,
+	0x8f6: 0x094b, 0x8f7: 0x0967, 0x8f8: 0x096f, 0x8f9: 0x09ab, 0x8fa: 0x09b7, 0x8fb: 0x0a93,
+	0x8fc: 0x0a9b, 0x8fd: 0x0ba3, 0x8fe: 0x0bcb, 0x8ff: 0x0bd3,
+	// Block 0x24, offset 0x900
+	0x900: 0x0beb, 0x901: 0x0c97, 0x902: 0x0cc7, 0x903: 0x0ce7, 0x904: 0x0d57, 0x905: 0x0e1b,
+	0x906: 0x0e37, 0x907: 0x0e67, 0x908: 0x0ebb, 0x909: 0x0edb, 0x90a: 0x0f4f, 0x90b: 0x102f,
+	0x90c: 0x104b, 0x90d: 0x1053, 0x90e: 0x104f, 0x90f: 0x1057, 0x910: 0x105b, 0x911: 0x105f,
+	0x912: 0x1073, 0x913: 0x1077, 0x914: 0x109b, 0x915: 0x10af, 0x916: 0x10cb, 0x917: 0x112f,
+	0x918: 0x1137, 0x919: 0x113f, 0x91a: 0x1153, 0x91b: 0x117b, 0x91c: 0x11cb, 0x91d: 0x11ff,
+	0x91e: 0x11ff, 0x91f: 0x1267, 0x920: 0x130f, 0x921: 0x1327, 0x922: 0x135b, 0x923: 0x135f,
+	0x924: 0x13a3, 0x925: 0x13a7, 0x926: 0x13ff, 0x927: 0x1407, 0x928: 0x14db, 0x929: 0x151f,
+	0x92a: 0x1537, 0x92b: 0x0b9b, 0x92c: 0x171e, 0x92d: 0x11e3,
+	0x930: 0x06df, 0x931: 0x07e3, 0x932: 0x07a3, 0x933: 0x074b, 0x934: 0x078b, 0x935: 0x07b7,
+	0x936: 0x0847, 0x937: 0x0863, 0x938: 0x094b, 0x939: 0x0937, 0x93a: 0x0947, 0x93b: 0x0963,
+	0x93c: 0x09af, 0x93d: 0x09bf, 0x93e: 0x0a03, 0x93f: 0x0a0f,
+	// Block 0x25, offset 0x940
+	0x940: 0x0a2b, 0x941: 0x0a3b, 0x942: 0x0b23, 0x943: 0x0b2b, 0x944: 0x0b5b, 0x945: 0x0b7b,
+	0x946: 0x0bab, 0x947: 0x0bc3, 0x948: 0x0bb3, 0x949: 0x0bd3, 0x94a: 0x0bc7, 0x94b: 0x0beb,
+	0x94c: 0x0c07, 0x94d: 0x0c5f, 0x94e: 0x0c6b, 0x94f: 0x0c73, 0x950: 0x0c9b, 0x951: 0x0cdf,
+	0x952: 0x0d0f, 0x953: 0x0d13, 0x954: 0x0d27, 0x955: 0x0da7, 0x956: 0x0db7, 0x957: 0x0e0f,
+	0x958: 0x0e5b, 0x959: 0x0e53, 0x95a: 0x0e67, 0x95b: 0x0e83, 0x95c: 0x0ebb, 0x95d: 0x1013,
+	0x95e: 0x0edf, 0x95f: 0x0f13, 0x960: 0x0f1f, 0x961: 0x0f5f, 0x962: 0x0f7b, 0x963: 0x0f9f,
+	0x964: 0x0fc3, 0x965: 0x0fc7, 0x966: 0x0fe3, 0x967: 0x0fe7, 0x968: 0x0ff7, 0x969: 0x100b,
+	0x96a: 0x1007, 0x96b: 0x1037, 0x96c: 0x10b3, 0x96d: 0x10cb, 0x96e: 0x10e3, 0x96f: 0x111b,
+	0x970: 0x112f, 0x971: 0x114b, 0x972: 0x117b, 0x973: 0x122f, 0x974: 0x1257, 0x975: 0x12cb,
+	0x976: 0x1313, 0x977: 0x131f, 0x978: 0x1327, 0x979: 0x133f, 0x97a: 0x1353, 0x97b: 0x1343,
+	0x97c: 0x135b, 0x97d: 0x1357, 0x97e: 0x134f, 0x97f: 0x135f,
+	// Block 0x26, offset 0x980
+	0x980: 0x136b, 0x981: 0x13a7, 0x982: 0x13e3, 0x983: 0x1413, 0x984: 0x144b, 0x985: 0x146b,
+	0x986: 0x14b7, 0x987: 0x14db, 0x988: 0x14fb, 0x989: 0x150f, 0x98a: 0x151f, 0x98b: 0x152b,
+	0x98c: 0x1537, 0x98d: 0x158b, 0x98e: 0x162b, 0x98f: 0x16b5, 0x990: 0x16b0, 0x991: 0x16e2,
+	0x992: 0x0607, 0x993: 0x062f, 0x994: 0x0633, 0x995: 0x1764, 0x996: 0x1791, 0x997: 0x1809,
+	0x998: 0x1617, 0x999: 0x1627,
+	// Block 0x27, offset 0x9c0
+	0x9c0: 0x06fb, 0x9c1: 0x06f3, 0x9c2: 0x0703, 0x9c3: 0x1647, 0x9c4: 0x0747, 0x9c5: 0x0757,
+	0x9c6: 0x075b, 0x9c7: 0x0763, 0x9c8: 0x076b, 0x9c9: 0x076f, 0x9ca: 0x077b, 0x9cb: 0x0773,
+	0x9cc: 0x05b3, 0x9cd: 0x165b, 0x9ce: 0x078f, 0x9cf: 0x0793, 0x9d0: 0x0797, 0x9d1: 0x07b3,
+	0x9d2: 0x164c, 0x9d3: 0x05b7, 0x9d4: 0x079f, 0x9d5: 0x07bf, 0x9d6: 0x1656, 0x9d7: 0x07cf,
+	0x9d8: 0x07d7, 0x9d9: 0x0737, 0x9da: 0x07df, 0x9db: 0x07e3, 0x9dc: 0x1831, 0x9dd: 0x07ff,
+	0x9de: 0x0807, 0x9df: 0x05bf, 0x9e0: 0x081f, 0x9e1: 0x0823, 0x9e2: 0x082b, 0x9e3: 0x082f,
+	0x9e4: 0x05c3, 0x9e5: 0x0847, 0x9e6: 0x084b, 0x9e7: 0x0857, 0x9e8: 0x0863, 0x9e9: 0x0867,
+	0x9ea: 0x086b, 0x9eb: 0x0873, 0x9ec: 0x0893, 0x9ed: 0x0897, 0x9ee: 0x089f, 0x9ef: 0x08af,
+	0x9f0: 0x08b7, 0x9f1: 0x08bb, 0x9f2: 0x08bb, 0x9f3: 0x08bb, 0x9f4: 0x166a, 0x9f5: 0x0e93,
+	0x9f6: 0x08cf, 0x9f7: 0x08d7, 0x9f8: 0x166f, 0x9f9: 0x08e3, 0x9fa: 0x08eb, 0x9fb: 0x08f3,
+	0x9fc: 0x091b, 0x9fd: 0x0907, 0x9fe: 0x0913, 0x9ff: 0x0917,
+	// Block 0x28, offset 0xa00
+	0xa00: 0x091f, 0xa01: 0x0927, 0xa02: 0x092b, 0xa03: 0x0933, 0xa04: 0x093b, 0xa05: 0x093f,
+	0xa06: 0x093f, 0xa07: 0x0947, 0xa08: 0x094f, 0xa09: 0x0953, 0xa0a: 0x095f, 0xa0b: 0x0983,
+	0xa0c: 0x0967, 0xa0d: 0x0987, 0xa0e: 0x096b, 0xa0f: 0x0973, 0xa10: 0x080b, 0xa11: 0x09cf,
+	0xa12: 0x0997, 0xa13: 0x099b, 0xa14: 0x099f, 0xa15: 0x0993, 0xa16: 0x09a7, 0xa17: 0x09a3,
+	0xa18: 0x09bb, 0xa19: 0x1674, 0xa1a: 0x09d7, 0xa1b: 0x09db, 0xa1c: 0x09e3, 0xa1d: 0x09ef,
+	0xa1e: 0x09f7, 0xa1f: 0x0a13, 0xa20: 0x1679, 0xa21: 0x167e, 0xa22: 0x0a1f, 0xa23: 0x0a23,
+	0xa24: 0x0a27, 0xa25: 0x0a1b, 0xa26: 0x0a2f, 0xa27: 0x05c7, 0xa28: 0x05cb, 0xa29: 0x0a37,
+	0xa2a: 0x0a3f, 0xa2b: 0x0a3f, 0xa2c: 0x1683, 0xa2d: 0x0a5b, 0xa2e: 0x0a5f, 0xa2f: 0x0a63,
+	0xa30: 0x0a6b, 0xa31: 0x1688, 0xa32: 0x0a73, 0xa33: 0x0a77, 0xa34: 0x0b4f, 0xa35: 0x0a7f,
+	0xa36: 0x05cf, 0xa37: 0x0a8b, 0xa38: 0x0a9b, 0xa39: 0x0aa7, 0xa3a: 0x0aa3, 0xa3b: 0x1692,
+	0xa3c: 0x0aaf, 0xa3d: 0x1697, 0xa3e: 0x0abb, 0xa3f: 0x0ab7,
+	// Block 0x29, offset 0xa40
+	0xa40: 0x0abf, 0xa41: 0x0acf, 0xa42: 0x0ad3, 0xa43: 0x05d3, 0xa44: 0x0ae3, 0xa45: 0x0aeb,
+	0xa46: 0x0aef, 0xa47: 0x0af3, 0xa48: 0x05d7, 0xa49: 0x169c, 0xa4a: 0x05db, 0xa4b: 0x0b0f,
+	0xa4c: 0x0b13, 0xa4d: 0x0b17, 0xa4e: 0x0b1f, 0xa4f: 0x1863, 0xa50: 0x0b37, 0xa51: 0x16a6,
+	0xa52: 0x16a6, 0xa53: 0x11d7, 0xa54: 0x0b47, 0xa55: 0x0b47, 0xa56: 0x05df, 0xa57: 0x16c9,
+	0xa58: 0x179b, 0xa59: 0x0b57, 0xa5a: 0x0b5f, 0xa5b: 0x05e3, 0xa5c: 0x0b73, 0xa5d: 0x0b83,
+	0xa5e: 0x0b87, 0xa5f: 0x0b8f, 0xa60: 0x0b9f, 0xa61: 0x05eb, 0xa62: 0x05e7, 0xa63: 0x0ba3,
+	0xa64: 0x16ab, 0xa65: 0x0ba7, 0xa66: 0x0bbb, 0xa67: 0x0bbf, 0xa68: 0x0bc3, 0xa69: 0x0bbf,
+	0xa6a: 0x0bcf, 0xa6b: 0x0bd3, 0xa6c: 0x0be3, 0xa6d: 0x0bdb, 0xa6e: 0x0bdf, 0xa6f: 0x0be7,
+	0xa70: 0x0beb, 0xa71: 0x0bef, 0xa72: 0x0bfb, 0xa73: 0x0bff, 0xa74: 0x0c17, 0xa75: 0x0c1f,
+	0xa76: 0x0c2f, 0xa77: 0x0c43, 0xa78: 0x16ba, 0xa79: 0x0c3f, 0xa7a: 0x0c33, 0xa7b: 0x0c4b,
+	0xa7c: 0x0c53, 0xa7d: 0x0c67, 0xa7e: 0x16bf, 0xa7f: 0x0c6f,
+	// Block 0x2a, offset 0xa80
+	0xa80: 0x0c63, 0xa81: 0x0c5b, 0xa82: 0x05ef, 0xa83: 0x0c77, 0xa84: 0x0c7f, 0xa85: 0x0c87,
+	0xa86: 0x0c7b, 0xa87: 0x05f3, 0xa88: 0x0c97, 0xa89: 0x0c9f, 0xa8a: 0x16c4, 0xa8b: 0x0ccb,
+	0xa8c: 0x0cff, 0xa8d: 0x0cdb, 0xa8e: 0x05ff, 0xa8f: 0x0ce7, 0xa90: 0x05fb, 0xa91: 0x05f7,
+	0xa92: 0x07c3, 0xa93: 0x07c7, 0xa94: 0x0d03, 0xa95: 0x0ceb, 0xa96: 0x11ab, 0xa97: 0x0663,
+	0xa98: 0x0d0f, 0xa99: 0x0d13, 0xa9a: 0x0d17, 0xa9b: 0x0d2b, 0xa9c: 0x0d23, 0xa9d: 0x16dd,
+	0xa9e: 0x0603, 0xa9f: 0x0d3f, 0xaa0: 0x0d33, 0xaa1: 0x0d4f, 0xaa2: 0x0d57, 0xaa3: 0x16e7,
+	0xaa4: 0x0d5b, 0xaa5: 0x0d47, 0xaa6: 0x0d63, 0xaa7: 0x0607, 0xaa8: 0x0d67, 0xaa9: 0x0d6b,
+	0xaaa: 0x0d6f, 0xaab: 0x0d7b, 0xaac: 0x16ec, 0xaad: 0x0d83, 0xaae: 0x060b, 0xaaf: 0x0d8f,
+	0xab0: 0x16f1, 0xab1: 0x0d93, 0xab2: 0x060f, 0xab3: 0x0d9f, 0xab4: 0x0dab, 0xab5: 0x0db7,
+	0xab6: 0x0dbb, 0xab7: 0x16f6, 0xab8: 0x168d, 0xab9: 0x16fb, 0xaba: 0x0ddb, 0xabb: 0x1700,
+	0xabc: 0x0de7, 0xabd: 0x0def, 0xabe: 0x0ddf, 0xabf: 0x0dfb,
+	// Block 0x2b, offset 0xac0
+	0xac0: 0x0e0b, 0xac1: 0x0e1b, 0xac2: 0x0e0f, 0xac3: 0x0e13, 0xac4: 0x0e1f, 0xac5: 0x0e23,
+	0xac6: 0x1705, 0xac7: 0x0e07, 0xac8: 0x0e3b, 0xac9: 0x0e3f, 0xaca: 0x0613, 0xacb: 0x0e53,
+	0xacc: 0x0e4f, 0xacd: 0x170a, 0xace: 0x0e33, 0xacf: 0x0e6f, 0xad0: 0x170f, 0xad1: 0x1714,
+	0xad2: 0x0e73, 0xad3: 0x0e87, 0xad4: 0x0e83, 0xad5: 0x0e7f, 0xad6: 0x0617, 0xad7: 0x0e8b,
+	0xad8: 0x0e9b, 0xad9: 0x0e97, 0xada: 0x0ea3, 0xadb: 0x1651, 0xadc: 0x0eb3, 0xadd: 0x1719,
+	0xade: 0x0ebf, 0xadf: 0x1723, 0xae0: 0x0ed3, 0xae1: 0x0edf, 0xae2: 0x0ef3, 0xae3: 0x1728,
+	0xae4: 0x0f07, 0xae5: 0x0f0b, 0xae6: 0x172d, 0xae7: 0x1732, 0xae8: 0x0f27, 0xae9: 0x0f37,
+	0xaea: 0x061b, 0xaeb: 0x0f3b, 0xaec: 0x061f, 0xaed: 0x061f, 0xaee: 0x0f53, 0xaef: 0x0f57,
+	0xaf0: 0x0f5f, 0xaf1: 0x0f63, 0xaf2: 0x0f6f, 0xaf3: 0x0623, 0xaf4: 0x0f87, 0xaf5: 0x1737,
+	0xaf6: 0x0fa3, 0xaf7: 0x173c, 0xaf8: 0x0faf, 0xaf9: 0x16a1, 0xafa: 0x0fbf, 0xafb: 0x1741,
+	0xafc: 0x1746, 0xafd: 0x174b, 0xafe: 0x0627, 0xaff: 0x062b,
+	// Block 0x2c, offset 0xb00
+	0xb00: 0x0ff7, 0xb01: 0x1755, 0xb02: 0x1750, 0xb03: 0x175a, 0xb04: 0x175f, 0xb05: 0x0fff,
+	0xb06: 0x1003, 0xb07: 0x1003, 0xb08: 0x100b, 0xb09: 0x0633, 0xb0a: 0x100f, 0xb0b: 0x0637,
+	0xb0c: 0x063b, 0xb0d: 0x1769, 0xb0e: 0x1023, 0xb0f: 0x102b, 0xb10: 0x1037, 0xb11: 0x063f,
+	0xb12: 0x176e, 0xb13: 0x105b, 0xb14: 0x1773, 0xb15: 0x1778, 0xb16: 0x107b, 0xb17: 0x1093,
+	0xb18: 0x0643, 0xb19: 0x109b, 0xb1a: 0x109f, 0xb1b: 0x10a3, 0xb1c: 0x177d, 0xb1d: 0x1782,
+	0xb1e: 0x1782, 0xb1f: 0x10bb, 0xb20: 0x0647, 0xb21: 0x1787, 0xb22: 0x10cf, 0xb23: 0x10d3,
+	0xb24: 0x064b, 0xb25: 0x178c, 0xb26: 0x10ef, 0xb27: 0x064f, 0xb28: 0x10ff, 0xb29: 0x10f7,
+	0xb2a: 0x1107, 0xb2b: 0x1796, 0xb2c: 0x111f, 0xb2d: 0x0653, 0xb2e: 0x112b, 0xb2f: 0x1133,
+	0xb30: 0x1143, 0xb31: 0x0657, 0xb32: 0x17a0, 0xb33: 0x17a5, 0xb34: 0x065b, 0xb35: 0x17aa,
+	0xb36: 0x115b, 0xb37: 0x17af, 0xb38: 0x1167, 0xb39: 0x1173, 0xb3a: 0x117b, 0xb3b: 0x17b4,
+	0xb3c: 0x17b9, 0xb3d: 0x118f, 0xb3e: 0x17be, 0xb3f: 0x1197,
+	// Block 0x2d, offset 0xb40
+	0xb40: 0x16ce, 0xb41: 0x065f, 0xb42: 0x11af, 0xb43: 0x11b3, 0xb44: 0x0667, 0xb45: 0x11b7,
+	0xb46: 0x0a33, 0xb47: 0x17c3, 0xb48: 0x17c8, 0xb49: 0x16d3, 0xb4a: 0x16d8, 0xb4b: 0x11d7,
+	0xb4c: 0x11db, 0xb4d: 0x13f3, 0xb4e: 0x066b, 0xb4f: 0x1207, 0xb50: 0x1203, 0xb51: 0x120b,
+	0xb52: 0x083f, 0xb53: 0x120f, 0xb54: 0x1213, 0xb55: 0x1217, 0xb56: 0x121f, 0xb57: 0x17cd,
+	0xb58: 0x121b, 0xb59: 0x1223, 0xb5a: 0x1237, 0xb5b: 0x123b, 0xb5c: 0x1227, 0xb5d: 0x123f,
+	0xb5e: 0x1253, 0xb5f: 0x1267, 0xb60: 0x1233, 0xb61: 0x1247, 0xb62: 0x124b, 0xb63: 0x124f,
+	0xb64: 0x17d2, 0xb65: 0x17dc, 0xb66: 0x17d7, 0xb67: 0x066f, 0xb68: 0x126f, 0xb69: 0x1273,
+	0xb6a: 0x127b, 0xb6b: 0x17f0, 0xb6c: 0x127f, 0xb6d: 0x17e1, 0xb6e: 0x0673, 0xb6f: 0x0677,
+	0xb70: 0x17e6, 0xb71: 0x17eb, 0xb72: 0x067b, 0xb73: 0x129f, 0xb74: 0x12a3, 0xb75: 0x12a7,
+	0xb76: 0x12ab, 0xb77: 0x12b7, 0xb78: 0x12b3, 0xb79: 0x12bf, 0xb7a: 0x12bb, 0xb7b: 0x12cb,
+	0xb7c: 0x12c3, 0xb7d: 0x12c7, 0xb7e: 0x12cf, 0xb7f: 0x067f,
+	// Block 0x2e, offset 0xb80
+	0xb80: 0x12d7, 0xb81: 0x12db, 0xb82: 0x0683, 0xb83: 0x12eb, 0xb84: 0x12ef, 0xb85: 0x17f5,
+	0xb86: 0x12fb, 0xb87: 0x12ff, 0xb88: 0x0687, 0xb89: 0x130b, 0xb8a: 0x05bb, 0xb8b: 0x17fa,
+	0xb8c: 0x17ff, 0xb8d: 0x068b, 0xb8e: 0x068f, 0xb8f: 0x1337, 0xb90: 0x134f, 0xb91: 0x136b,
+	0xb92: 0x137b, 0xb93: 0x1804, 0xb94: 0x138f, 0xb95: 0x1393, 0xb96: 0x13ab, 0xb97: 0x13b7,
+	0xb98: 0x180e, 0xb99: 0x1660, 0xb9a: 0x13c3, 0xb9b: 0x13bf, 0xb9c: 0x13cb, 0xb9d: 0x1665,
+	0xb9e: 0x13d7, 0xb9f: 0x13e3, 0xba0: 0x1813, 0xba1: 0x1818, 0xba2: 0x1423, 0xba3: 0x142f,
+	0xba4: 0x1437, 0xba5: 0x181d, 0xba6: 0x143b, 0xba7: 0x1467, 0xba8: 0x1473, 0xba9: 0x1477,
+	0xbaa: 0x146f, 0xbab: 0x1483, 0xbac: 0x1487, 0xbad: 0x1822, 0xbae: 0x1493, 0xbaf: 0x0693,
+	0xbb0: 0x149b, 0xbb1: 0x1827, 0xbb2: 0x0697, 0xbb3: 0x14d3, 0xbb4: 0x0ac3, 0xbb5: 0x14eb,
+	0xbb6: 0x182c, 0xbb7: 0x1836, 0xbb8: 0x069b, 0xbb9: 0x069f, 0xbba: 0x1513, 0xbbb: 0x183b,
+	0xbbc: 0x06a3, 0xbbd: 0x1840, 0xbbe: 0x152b, 0xbbf: 0x152b,
+	// Block 0x2f, offset 0xbc0
+	0xbc0: 0x1533, 0xbc1: 0x1845, 0xbc2: 0x154b, 0xbc3: 0x06a7, 0xbc4: 0x155b, 0xbc5: 0x1567,
+	0xbc6: 0x156f, 0xbc7: 0x1577, 0xbc8: 0x06ab, 0xbc9: 0x184a, 0xbca: 0x158b, 0xbcb: 0x15a7,
+	0xbcc: 0x15b3, 0xbcd: 0x06af, 0xbce: 0x06b3, 0xbcf: 0x15b7, 0xbd0: 0x184f, 0xbd1: 0x06b7,
+	0xbd2: 0x1854, 0xbd3: 0x1859, 0xbd4: 0x185e, 0xbd5: 0x15db, 0xbd6: 0x06bb, 0xbd7: 0x15ef,
+	0xbd8: 0x15f7, 0xbd9: 0x15fb, 0xbda: 0x1603, 0xbdb: 0x160b, 0xbdc: 0x1613, 0xbdd: 0x1868,
+}
+
+// nfcIndex: 22 blocks, 1408 entries, 1408 bytes
+// Block 0 is the zero block.
+var nfcIndex = [1408]uint8{
+	// Block 0x0, offset 0x0
+	// Block 0x1, offset 0x40
+	// Block 0x2, offset 0x80
+	// Block 0x3, offset 0xc0
+	0xc2: 0x2e, 0xc3: 0x01, 0xc4: 0x02, 0xc5: 0x03, 0xc6: 0x2f, 0xc7: 0x04,
+	0xc8: 0x05, 0xca: 0x30, 0xcb: 0x31, 0xcc: 0x06, 0xcd: 0x07, 0xce: 0x08, 0xcf: 0x32,
+	0xd0: 0x09, 0xd1: 0x33, 0xd2: 0x34, 0xd3: 0x0a, 0xd6: 0x0b, 0xd7: 0x35,
+	0xd8: 0x36, 0xd9: 0x0c, 0xdb: 0x37, 0xdc: 0x38, 0xdd: 0x39, 0xdf: 0x3a,
+	0xe0: 0x02, 0xe1: 0x03, 0xe2: 0x04, 0xe3: 0x05,
+	0xea: 0x06, 0xeb: 0x07, 0xec: 0x08, 0xed: 0x09, 0xef: 0x0a,
+	0xf0: 0x13,
+	// Block 0x4, offset 0x100
+	0x120: 0x3b, 0x121: 0x3c, 0x123: 0x0d, 0x124: 0x3d, 0x125: 0x3e, 0x126: 0x3f, 0x127: 0x40,
+	0x128: 0x41, 0x129: 0x42, 0x12a: 0x43, 0x12b: 0x44, 0x12c: 0x3f, 0x12d: 0x45, 0x12e: 0x46, 0x12f: 0x47,
+	0x131: 0x48, 0x132: 0x49, 0x133: 0x4a, 0x134: 0x4b, 0x135: 0x4c, 0x137: 0x4d,
+	0x138: 0x4e, 0x139: 0x4f, 0x13a: 0x50, 0x13b: 0x51, 0x13c: 0x52, 0x13d: 0x53, 0x13e: 0x54, 0x13f: 0x55,
+	// Block 0x5, offset 0x140
+	0x140: 0x56, 0x142: 0x57, 0x144: 0x58, 0x145: 0x59, 0x146: 0x5a, 0x147: 0x5b,
+	0x14d: 0x5c,
+	0x15c: 0x5d, 0x15f: 0x5e,
+	0x162: 0x5f, 0x164: 0x60,
+	0x168: 0x61, 0x169: 0x62, 0x16a: 0x63, 0x16c: 0x0e, 0x16d: 0x64, 0x16e: 0x65, 0x16f: 0x66,
+	0x170: 0x67, 0x173: 0x68, 0x177: 0x0f,
+	0x178: 0x10, 0x179: 0x11, 0x17a: 0x12, 0x17b: 0x13, 0x17c: 0x14, 0x17d: 0x15, 0x17e: 0x16, 0x17f: 0x17,
+	// Block 0x6, offset 0x180
+	0x180: 0x69, 0x183: 0x6a, 0x184: 0x6b, 0x186: 0x6c, 0x187: 0x6d,
+	0x188: 0x6e, 0x189: 0x18, 0x18a: 0x19, 0x18b: 0x6f, 0x18c: 0x70,
+	0x1ab: 0x71,
+	0x1b3: 0x72, 0x1b5: 0x73, 0x1b7: 0x74,
+	// Block 0x7, offset 0x1c0
+	0x1c0: 0x75, 0x1c1: 0x1a, 0x1c2: 0x1b, 0x1c3: 0x1c, 0x1c4: 0x76, 0x1c5: 0x77,
+	0x1c9: 0x78, 0x1cc: 0x79, 0x1cd: 0x7a,
+	// Block 0x8, offset 0x200
+	0x219: 0x7b, 0x21a: 0x7c, 0x21b: 0x7d,
+	0x220: 0x7e, 0x223: 0x7f, 0x224: 0x80, 0x225: 0x81, 0x226: 0x82, 0x227: 0x83,
+	0x22a: 0x84, 0x22b: 0x85, 0x22f: 0x86,
+	0x230: 0x87, 0x231: 0x88, 0x232: 0x89, 0x233: 0x8a, 0x234: 0x8b, 0x235: 0x8c, 0x236: 0x8d, 0x237: 0x87,
+	0x238: 0x88, 0x239: 0x89, 0x23a: 0x8a, 0x23b: 0x8b, 0x23c: 0x8c, 0x23d: 0x8d, 0x23e: 0x87, 0x23f: 0x88,
+	// Block 0x9, offset 0x240
+	0x240: 0x89, 0x241: 0x8a, 0x242: 0x8b, 0x243: 0x8c, 0x244: 0x8d, 0x245: 0x87, 0x246: 0x88, 0x247: 0x89,
+	0x248: 0x8a, 0x249: 0x8b, 0x24a: 0x8c, 0x24b: 0x8d, 0x24c: 0x87, 0x24d: 0x88, 0x24e: 0x89, 0x24f: 0x8a,
+	0x250: 0x8b, 0x251: 0x8c, 0x252: 0x8d, 0x253: 0x87, 0x254: 0x88, 0x255: 0x89, 0x256: 0x8a, 0x257: 0x8b,
+	0x258: 0x8c, 0x259: 0x8d, 0x25a: 0x87, 0x25b: 0x88, 0x25c: 0x89, 0x25d: 0x8a, 0x25e: 0x8b, 0x25f: 0x8c,
+	0x260: 0x8d, 0x261: 0x87, 0x262: 0x88, 0x263: 0x89, 0x264: 0x8a, 0x265: 0x8b, 0x266: 0x8c, 0x267: 0x8d,
+	0x268: 0x87, 0x269: 0x88, 0x26a: 0x89, 0x26b: 0x8a, 0x26c: 0x8b, 0x26d: 0x8c, 0x26e: 0x8d, 0x26f: 0x87,
+	0x270: 0x88, 0x271: 0x89, 0x272: 0x8a, 0x273: 0x8b, 0x274: 0x8c, 0x275: 0x8d, 0x276: 0x87, 0x277: 0x88,
+	0x278: 0x89, 0x279: 0x8a, 0x27a: 0x8b, 0x27b: 0x8c, 0x27c: 0x8d, 0x27d: 0x87, 0x27e: 0x88, 0x27f: 0x89,
+	// Block 0xa, offset 0x280
+	0x280: 0x8a, 0x281: 0x8b, 0x282: 0x8c, 0x283: 0x8d, 0x284: 0x87, 0x285: 0x88, 0x286: 0x89, 0x287: 0x8a,
+	0x288: 0x8b, 0x289: 0x8c, 0x28a: 0x8d, 0x28b: 0x87, 0x28c: 0x88, 0x28d: 0x89, 0x28e: 0x8a, 0x28f: 0x8b,
+	0x290: 0x8c, 0x291: 0x8d, 0x292: 0x87, 0x293: 0x88, 0x294: 0x89, 0x295: 0x8a, 0x296: 0x8b, 0x297: 0x8c,
+	0x298: 0x8d, 0x299: 0x87, 0x29a: 0x88, 0x29b: 0x89, 0x29c: 0x8a, 0x29d: 0x8b, 0x29e: 0x8c, 0x29f: 0x8d,
+	0x2a0: 0x87, 0x2a1: 0x88, 0x2a2: 0x89, 0x2a3: 0x8a, 0x2a4: 0x8b, 0x2a5: 0x8c, 0x2a6: 0x8d, 0x2a7: 0x87,
+	0x2a8: 0x88, 0x2a9: 0x89, 0x2aa: 0x8a, 0x2ab: 0x8b, 0x2ac: 0x8c, 0x2ad: 0x8d, 0x2ae: 0x87, 0x2af: 0x88,
+	0x2b0: 0x89, 0x2b1: 0x8a, 0x2b2: 0x8b, 0x2b3: 0x8c, 0x2b4: 0x8d, 0x2b5: 0x87, 0x2b6: 0x88, 0x2b7: 0x89,
+	0x2b8: 0x8a, 0x2b9: 0x8b, 0x2ba: 0x8c, 0x2bb: 0x8d, 0x2bc: 0x87, 0x2bd: 0x88, 0x2be: 0x89, 0x2bf: 0x8a,
+	// Block 0xb, offset 0x2c0
+	0x2c0: 0x8b, 0x2c1: 0x8c, 0x2c2: 0x8d, 0x2c3: 0x87, 0x2c4: 0x88, 0x2c5: 0x89, 0x2c6: 0x8a, 0x2c7: 0x8b,
+	0x2c8: 0x8c, 0x2c9: 0x8d, 0x2ca: 0x87, 0x2cb: 0x88, 0x2cc: 0x89, 0x2cd: 0x8a, 0x2ce: 0x8b, 0x2cf: 0x8c,
+	0x2d0: 0x8d, 0x2d1: 0x87, 0x2d2: 0x88, 0x2d3: 0x89, 0x2d4: 0x8a, 0x2d5: 0x8b, 0x2d6: 0x8c, 0x2d7: 0x8d,
+	0x2d8: 0x87, 0x2d9: 0x88, 0x2da: 0x89, 0x2db: 0x8a, 0x2dc: 0x8b, 0x2dd: 0x8c, 0x2de: 0x8e,
+	// Block 0xc, offset 0x300
+	0x324: 0x1d, 0x325: 0x1e, 0x326: 0x1f, 0x327: 0x20,
+	0x328: 0x21, 0x329: 0x22, 0x32a: 0x23, 0x32b: 0x24, 0x32c: 0x8f, 0x32d: 0x90, 0x32e: 0x91,
+	0x331: 0x92, 0x332: 0x93, 0x333: 0x94, 0x334: 0x95,
+	0x338: 0x96, 0x339: 0x97, 0x33a: 0x98, 0x33b: 0x99, 0x33e: 0x9a, 0x33f: 0x9b,
+	// Block 0xd, offset 0x340
+	0x347: 0x9c,
+	0x34b: 0x9d, 0x34d: 0x9e,
+	0x368: 0x9f, 0x36b: 0xa0,
+	0x374: 0xa1,
+	0x37d: 0xa2,
+	// Block 0xe, offset 0x380
+	0x381: 0xa3, 0x382: 0xa4, 0x384: 0xa5, 0x385: 0x82, 0x387: 0xa6,
+	0x388: 0xa7, 0x38b: 0xa8, 0x38c: 0xa9, 0x38d: 0xaa,
+	0x391: 0xab, 0x392: 0xac, 0x393: 0xad, 0x396: 0xae, 0x397: 0xaf,
+	0x398: 0x73, 0x39a: 0xb0, 0x39c: 0xb1,
+	0x3a0: 0xb2, 0x3a7: 0xb3,
+	0x3a8: 0xb4, 0x3a9: 0xb5, 0x3aa: 0xb6,
+	0x3b0: 0x73, 0x3b5: 0xb7, 0x3b6: 0xb8,
+	// Block 0xf, offset 0x3c0
+	0x3eb: 0xb9, 0x3ec: 0xba,
+	// Block 0x10, offset 0x400
+	0x432: 0xbb,
+	// Block 0x11, offset 0x440
+	0x445: 0xbc, 0x446: 0xbd, 0x447: 0xbe,
+	0x449: 0xbf,
+	// Block 0x12, offset 0x480
+	0x480: 0xc0, 0x484: 0xba,
+	0x48b: 0xc1,
+	0x4a3: 0xc2, 0x4a5: 0xc3,
+	// Block 0x13, offset 0x4c0
+	0x4c8: 0xc4,
+	// Block 0x14, offset 0x500
+	0x520: 0x25, 0x521: 0x26, 0x522: 0x27, 0x523: 0x28, 0x524: 0x29, 0x525: 0x2a, 0x526: 0x2b, 0x527: 0x2c,
+	0x528: 0x2d,
+	// Block 0x15, offset 0x540
+	0x550: 0x0b, 0x551: 0x0c, 0x556: 0x0d,
+	0x55b: 0x0e, 0x55d: 0x0f, 0x55e: 0x10, 0x55f: 0x11,
+	0x56f: 0x12,
+}
+
+// nfcSparseOffset: 151 entries, 302 bytes
+var nfcSparseOffset = []uint16{0x0, 0x5, 0x9, 0xb, 0xd, 0x18, 0x28, 0x2a, 0x2f, 0x3a, 0x49, 0x56, 0x5e, 0x63, 0x68, 0x6a, 0x72, 0x79, 0x7c, 0x84, 0x88, 0x8c, 0x8e, 0x90, 0x99, 0x9d, 0xa4, 0xa9, 0xac, 0xb6, 0xb9, 0xc0, 0xc8, 0xcb, 0xcd, 0xd0, 0xd2, 0xd7, 0xe8, 0xf4, 0xf6, 0xfc, 0xfe, 0x100, 0x102, 0x104, 0x106, 0x108, 0x10b, 0x10e, 0x110, 0x113, 0x116, 0x11a, 0x11f, 0x128, 0x12a, 0x12d, 0x12f, 0x13a, 0x13e, 0x14c, 0x14f, 0x155, 0x15b, 0x166, 0x16a, 0x16c, 0x16e, 0x170, 0x172, 0x174, 0x17a, 0x17e, 0x180, 0x182, 0x18a, 0x18e, 0x191, 0x193, 0x195, 0x197, 0x19a, 0x19c, 0x19e, 0x1a0, 0x1a2, 0x1a8, 0x1ab, 0x1ad, 0x1b4, 0x1ba, 0x1c0, 0x1c8, 0x1ce, 0x1d4, 0x1da, 0x1de, 0x1ec, 0x1f5, 0x1f8, 0x1fb, 0x1fd, 0x200, 0x202, 0x206, 0x20b, 0x20d, 0x20f, 0x214, 0x21a, 0x21c, 0x21e, 0x220, 0x226, 0x229, 0x22b, 0x231, 0x234, 0x23c, 0x243, 0x246, 0x249, 0x24b, 0x24e, 0x256, 0x25a, 0x261, 0x264, 0x26a, 0x26c, 0x26f, 0x271, 0x274, 0x276, 0x278, 0x27a, 0x27c, 0x27f, 0x281, 0x283, 0x285, 0x287, 0x294, 0x29e, 0x2a0, 0x2a2, 0x2a8, 0x2aa, 0x2ac, 0x2af}
+
+// nfcSparseValues: 689 entries, 2756 bytes
+var nfcSparseValues = [689]valueRange{
+	// Block 0x0, offset 0x0
+	{value: 0x0000, lo: 0x04},
+	{value: 0xa100, lo: 0xa8, hi: 0xa8},
+	{value: 0x8100, lo: 0xaf, hi: 0xaf},
+	{value: 0x8100, lo: 0xb4, hi: 0xb4},
+	{value: 0x8100, lo: 0xb8, hi: 0xb8},
+	// Block 0x1, offset 0x5
+	{value: 0x0091, lo: 0x03},
+	{value: 0x46e5, lo: 0xa0, hi: 0xa1},
+	{value: 0x4717, lo: 0xaf, hi: 0xb0},
+	{value: 0xa000, lo: 0xb7, hi: 0xb7},
+	// Block 0x2, offset 0x9
+	{value: 0x0000, lo: 0x01},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	// Block 0x3, offset 0xb
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8100, lo: 0x98, hi: 0x9d},
+	// Block 0x4, offset 0xd
+	{value: 0x0006, lo: 0x0a},
+	{value: 0xa000, lo: 0x81, hi: 0x81},
+	{value: 0xa000, lo: 0x85, hi: 0x85},
+	{value: 0xa000, lo: 0x89, hi: 0x89},
+	{value: 0x4843, lo: 0x8a, hi: 0x8a},
+	{value: 0x4861, lo: 0x8b, hi: 0x8b},
+	{value: 0x36ca, lo: 0x8c, hi: 0x8c},
+	{value: 0x36e2, lo: 0x8d, hi: 0x8d},
+	{value: 0x4879, lo: 0x8e, hi: 0x8e},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	{value: 0x3700, lo: 0x93, hi: 0x94},
+	// Block 0x5, offset 0x18
+	{value: 0x0000, lo: 0x0f},
+	{value: 0xa000, lo: 0x83, hi: 0x83},
+	{value: 0xa000, lo: 0x87, hi: 0x87},
+	{value: 0xa000, lo: 0x8b, hi: 0x8b},
+	{value: 0xa000, lo: 0x8d, hi: 0x8d},
+	{value: 0x37a8, lo: 0x90, hi: 0x90},
+	{value: 0x37b4, lo: 0x91, hi: 0x91},
+	{value: 0x37a2, lo: 0x93, hi: 0x93},
+	{value: 0xa000, lo: 0x96, hi: 0x96},
+	{value: 0x381a, lo: 0x97, hi: 0x97},
+	{value: 0x37e4, lo: 0x9c, hi: 0x9c},
+	{value: 0x37cc, lo: 0x9d, hi: 0x9d},
+	{value: 0x37f6, lo: 0x9e, hi: 0x9e},
+	{value: 0xa000, lo: 0xb4, hi: 0xb5},
+	{value: 0x3820, lo: 0xb6, hi: 0xb6},
+	{value: 0x3826, lo: 0xb7, hi: 0xb7},
+	// Block 0x6, offset 0x28
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0x83, hi: 0x87},
+	// Block 0x7, offset 0x2a
+	{value: 0x0001, lo: 0x04},
+	{value: 0x8113, lo: 0x81, hi: 0x82},
+	{value: 0x8132, lo: 0x84, hi: 0x84},
+	{value: 0x812d, lo: 0x85, hi: 0x85},
+	{value: 0x810d, lo: 0x87, hi: 0x87},
+	// Block 0x8, offset 0x2f
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x8132, lo: 0x90, hi: 0x97},
+	{value: 0x8119, lo: 0x98, hi: 0x98},
+	{value: 0x811a, lo: 0x99, hi: 0x99},
+	{value: 0x811b, lo: 0x9a, hi: 0x9a},
+	{value: 0x3844, lo: 0xa2, hi: 0xa2},
+	{value: 0x384a, lo: 0xa3, hi: 0xa3},
+	{value: 0x3856, lo: 0xa4, hi: 0xa4},
+	{value: 0x3850, lo: 0xa5, hi: 0xa5},
+	{value: 0x385c, lo: 0xa6, hi: 0xa6},
+	{value: 0xa000, lo: 0xa7, hi: 0xa7},
+	// Block 0x9, offset 0x3a
+	{value: 0x0000, lo: 0x0e},
+	{value: 0x386e, lo: 0x80, hi: 0x80},
+	{value: 0xa000, lo: 0x81, hi: 0x81},
+	{value: 0x3862, lo: 0x82, hi: 0x82},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	{value: 0x3868, lo: 0x93, hi: 0x93},
+	{value: 0xa000, lo: 0x95, hi: 0x95},
+	{value: 0x8132, lo: 0x96, hi: 0x9c},
+	{value: 0x8132, lo: 0x9f, hi: 0xa2},
+	{value: 0x812d, lo: 0xa3, hi: 0xa3},
+	{value: 0x8132, lo: 0xa4, hi: 0xa4},
+	{value: 0x8132, lo: 0xa7, hi: 0xa8},
+	{value: 0x812d, lo: 0xaa, hi: 0xaa},
+	{value: 0x8132, lo: 0xab, hi: 0xac},
+	{value: 0x812d, lo: 0xad, hi: 0xad},
+	// Block 0xa, offset 0x49
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x811f, lo: 0x91, hi: 0x91},
+	{value: 0x8132, lo: 0xb0, hi: 0xb0},
+	{value: 0x812d, lo: 0xb1, hi: 0xb1},
+	{value: 0x8132, lo: 0xb2, hi: 0xb3},
+	{value: 0x812d, lo: 0xb4, hi: 0xb4},
+	{value: 0x8132, lo: 0xb5, hi: 0xb6},
+	{value: 0x812d, lo: 0xb7, hi: 0xb9},
+	{value: 0x8132, lo: 0xba, hi: 0xba},
+	{value: 0x812d, lo: 0xbb, hi: 0xbc},
+	{value: 0x8132, lo: 0xbd, hi: 0xbd},
+	{value: 0x812d, lo: 0xbe, hi: 0xbe},
+	{value: 0x8132, lo: 0xbf, hi: 0xbf},
+	// Block 0xb, offset 0x56
+	{value: 0x0005, lo: 0x07},
+	{value: 0x8132, lo: 0x80, hi: 0x80},
+	{value: 0x8132, lo: 0x81, hi: 0x81},
+	{value: 0x812d, lo: 0x82, hi: 0x83},
+	{value: 0x812d, lo: 0x84, hi: 0x85},
+	{value: 0x812d, lo: 0x86, hi: 0x87},
+	{value: 0x812d, lo: 0x88, hi: 0x89},
+	{value: 0x8132, lo: 0x8a, hi: 0x8a},
+	// Block 0xc, offset 0x5e
+	{value: 0x0000, lo: 0x04},
+	{value: 0x8132, lo: 0xab, hi: 0xb1},
+	{value: 0x812d, lo: 0xb2, hi: 0xb2},
+	{value: 0x8132, lo: 0xb3, hi: 0xb3},
+	{value: 0x812d, lo: 0xbd, hi: 0xbd},
+	// Block 0xd, offset 0x63
+	{value: 0x0000, lo: 0x04},
+	{value: 0x8132, lo: 0x96, hi: 0x99},
+	{value: 0x8132, lo: 0x9b, hi: 0xa3},
+	{value: 0x8132, lo: 0xa5, hi: 0xa7},
+	{value: 0x8132, lo: 0xa9, hi: 0xad},
+	// Block 0xe, offset 0x68
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0x99, hi: 0x9b},
+	// Block 0xf, offset 0x6a
+	{value: 0x0000, lo: 0x07},
+	{value: 0xa000, lo: 0xa8, hi: 0xa8},
+	{value: 0x3edb, lo: 0xa9, hi: 0xa9},
+	{value: 0xa000, lo: 0xb0, hi: 0xb0},
+	{value: 0x3ee3, lo: 0xb1, hi: 0xb1},
+	{value: 0xa000, lo: 0xb3, hi: 0xb3},
+	{value: 0x3eeb, lo: 0xb4, hi: 0xb4},
+	{value: 0x9902, lo: 0xbc, hi: 0xbc},
+	// Block 0x10, offset 0x72
+	{value: 0x0008, lo: 0x06},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x8132, lo: 0x91, hi: 0x91},
+	{value: 0x812d, lo: 0x92, hi: 0x92},
+	{value: 0x8132, lo: 0x93, hi: 0x93},
+	{value: 0x8132, lo: 0x94, hi: 0x94},
+	{value: 0x451f, lo: 0x98, hi: 0x9f},
+	// Block 0x11, offset 0x79
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8102, lo: 0xbc, hi: 0xbc},
+	{value: 0x9900, lo: 0xbe, hi: 0xbe},
+	// Block 0x12, offset 0x7c
+	{value: 0x0008, lo: 0x07},
+	{value: 0xa000, lo: 0x87, hi: 0x87},
+	{value: 0x2ca1, lo: 0x8b, hi: 0x8c},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x97, hi: 0x97},
+	{value: 0x455f, lo: 0x9c, hi: 0x9d},
+	{value: 0x456f, lo: 0x9f, hi: 0x9f},
+	{value: 0x8132, lo: 0xbe, hi: 0xbe},
+	// Block 0x13, offset 0x84
+	{value: 0x0000, lo: 0x03},
+	{value: 0x4597, lo: 0xb3, hi: 0xb3},
+	{value: 0x459f, lo: 0xb6, hi: 0xb6},
+	{value: 0x8102, lo: 0xbc, hi: 0xbc},
+	// Block 0x14, offset 0x88
+	{value: 0x0008, lo: 0x03},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x4577, lo: 0x99, hi: 0x9b},
+	{value: 0x458f, lo: 0x9e, hi: 0x9e},
+	// Block 0x15, offset 0x8c
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8102, lo: 0xbc, hi: 0xbc},
+	// Block 0x16, offset 0x8e
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	// Block 0x17, offset 0x90
+	{value: 0x0000, lo: 0x08},
+	{value: 0xa000, lo: 0x87, hi: 0x87},
+	{value: 0x2cb9, lo: 0x88, hi: 0x88},
+	{value: 0x2cb1, lo: 0x8b, hi: 0x8b},
+	{value: 0x2cc1, lo: 0x8c, hi: 0x8c},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x96, hi: 0x97},
+	{value: 0x45a7, lo: 0x9c, hi: 0x9c},
+	{value: 0x45af, lo: 0x9d, hi: 0x9d},
+	// Block 0x18, offset 0x99
+	{value: 0x0000, lo: 0x03},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	{value: 0x2cc9, lo: 0x94, hi: 0x94},
+	{value: 0x9900, lo: 0xbe, hi: 0xbe},
+	// Block 0x19, offset 0x9d
+	{value: 0x0000, lo: 0x06},
+	{value: 0xa000, lo: 0x86, hi: 0x87},
+	{value: 0x2cd1, lo: 0x8a, hi: 0x8a},
+	{value: 0x2ce1, lo: 0x8b, hi: 0x8b},
+	{value: 0x2cd9, lo: 0x8c, hi: 0x8c},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x97, hi: 0x97},
+	// Block 0x1a, offset 0xa4
+	{value: 0x1801, lo: 0x04},
+	{value: 0xa000, lo: 0x86, hi: 0x86},
+	{value: 0x3ef3, lo: 0x88, hi: 0x88},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x8120, lo: 0x95, hi: 0x96},
+	// Block 0x1b, offset 0xa9
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8102, lo: 0xbc, hi: 0xbc},
+	{value: 0xa000, lo: 0xbf, hi: 0xbf},
+	// Block 0x1c, offset 0xac
+	{value: 0x0000, lo: 0x09},
+	{value: 0x2ce9, lo: 0x80, hi: 0x80},
+	{value: 0x9900, lo: 0x82, hi: 0x82},
+	{value: 0xa000, lo: 0x86, hi: 0x86},
+	{value: 0x2cf1, lo: 0x87, hi: 0x87},
+	{value: 0x2cf9, lo: 0x88, hi: 0x88},
+	{value: 0x2f53, lo: 0x8a, hi: 0x8a},
+	{value: 0x2ddb, lo: 0x8b, hi: 0x8b},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x95, hi: 0x96},
+	// Block 0x1d, offset 0xb6
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0xbb, hi: 0xbc},
+	{value: 0x9900, lo: 0xbe, hi: 0xbe},
+	// Block 0x1e, offset 0xb9
+	{value: 0x0000, lo: 0x06},
+	{value: 0xa000, lo: 0x86, hi: 0x87},
+	{value: 0x2d01, lo: 0x8a, hi: 0x8a},
+	{value: 0x2d11, lo: 0x8b, hi: 0x8b},
+	{value: 0x2d09, lo: 0x8c, hi: 0x8c},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x97, hi: 0x97},
+	// Block 0x1f, offset 0xc0
+	{value: 0x6be7, lo: 0x07},
+	{value: 0x9904, lo: 0x8a, hi: 0x8a},
+	{value: 0x9900, lo: 0x8f, hi: 0x8f},
+	{value: 0xa000, lo: 0x99, hi: 0x99},
+	{value: 0x3efb, lo: 0x9a, hi: 0x9a},
+	{value: 0x2f5b, lo: 0x9c, hi: 0x9c},
+	{value: 0x2de6, lo: 0x9d, hi: 0x9d},
+	{value: 0x2d19, lo: 0x9e, hi: 0x9f},
+	// Block 0x20, offset 0xc8
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8122, lo: 0xb8, hi: 0xb9},
+	{value: 0x8104, lo: 0xba, hi: 0xba},
+	// Block 0x21, offset 0xcb
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8123, lo: 0x88, hi: 0x8b},
+	// Block 0x22, offset 0xcd
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8124, lo: 0xb8, hi: 0xb9},
+	{value: 0x8104, lo: 0xba, hi: 0xba},
+	// Block 0x23, offset 0xd0
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8125, lo: 0x88, hi: 0x8b},
+	// Block 0x24, offset 0xd2
+	{value: 0x0000, lo: 0x04},
+	{value: 0x812d, lo: 0x98, hi: 0x99},
+	{value: 0x812d, lo: 0xb5, hi: 0xb5},
+	{value: 0x812d, lo: 0xb7, hi: 0xb7},
+	{value: 0x812b, lo: 0xb9, hi: 0xb9},
+	// Block 0x25, offset 0xd7
+	{value: 0x0000, lo: 0x10},
+	{value: 0x2647, lo: 0x83, hi: 0x83},
+	{value: 0x264e, lo: 0x8d, hi: 0x8d},
+	{value: 0x2655, lo: 0x92, hi: 0x92},
+	{value: 0x265c, lo: 0x97, hi: 0x97},
+	{value: 0x2663, lo: 0x9c, hi: 0x9c},
+	{value: 0x2640, lo: 0xa9, hi: 0xa9},
+	{value: 0x8126, lo: 0xb1, hi: 0xb1},
+	{value: 0x8127, lo: 0xb2, hi: 0xb2},
+	{value: 0x4a87, lo: 0xb3, hi: 0xb3},
+	{value: 0x8128, lo: 0xb4, hi: 0xb4},
+	{value: 0x4a90, lo: 0xb5, hi: 0xb5},
+	{value: 0x45b7, lo: 0xb6, hi: 0xb6},
+	{value: 0x8200, lo: 0xb7, hi: 0xb7},
+	{value: 0x45bf, lo: 0xb8, hi: 0xb8},
+	{value: 0x8200, lo: 0xb9, hi: 0xb9},
+	{value: 0x8127, lo: 0xba, hi: 0xbd},
+	// Block 0x26, offset 0xe8
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x8127, lo: 0x80, hi: 0x80},
+	{value: 0x4a99, lo: 0x81, hi: 0x81},
+	{value: 0x8132, lo: 0x82, hi: 0x83},
+	{value: 0x8104, lo: 0x84, hi: 0x84},
+	{value: 0x8132, lo: 0x86, hi: 0x87},
+	{value: 0x2671, lo: 0x93, hi: 0x93},
+	{value: 0x2678, lo: 0x9d, hi: 0x9d},
+	{value: 0x267f, lo: 0xa2, hi: 0xa2},
+	{value: 0x2686, lo: 0xa7, hi: 0xa7},
+	{value: 0x268d, lo: 0xac, hi: 0xac},
+	{value: 0x266a, lo: 0xb9, hi: 0xb9},
+	// Block 0x27, offset 0xf4
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0x86, hi: 0x86},
+	// Block 0x28, offset 0xf6
+	{value: 0x0000, lo: 0x05},
+	{value: 0xa000, lo: 0xa5, hi: 0xa5},
+	{value: 0x2d21, lo: 0xa6, hi: 0xa6},
+	{value: 0x9900, lo: 0xae, hi: 0xae},
+	{value: 0x8102, lo: 0xb7, hi: 0xb7},
+	{value: 0x8104, lo: 0xb9, hi: 0xba},
+	// Block 0x29, offset 0xfc
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0x8d, hi: 0x8d},
+	// Block 0x2a, offset 0xfe
+	{value: 0x0000, lo: 0x01},
+	{value: 0xa000, lo: 0x80, hi: 0x92},
+	// Block 0x2b, offset 0x100
+	{value: 0x0000, lo: 0x01},
+	{value: 0xb900, lo: 0xa1, hi: 0xb5},
+	// Block 0x2c, offset 0x102
+	{value: 0x0000, lo: 0x01},
+	{value: 0x9900, lo: 0xa8, hi: 0xbf},
+	// Block 0x2d, offset 0x104
+	{value: 0x0000, lo: 0x01},
+	{value: 0x9900, lo: 0x80, hi: 0x82},
+	// Block 0x2e, offset 0x106
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0x9d, hi: 0x9f},
+	// Block 0x2f, offset 0x108
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x94, hi: 0x94},
+	{value: 0x8104, lo: 0xb4, hi: 0xb4},
+	// Block 0x30, offset 0x10b
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x92, hi: 0x92},
+	{value: 0x8132, lo: 0x9d, hi: 0x9d},
+	// Block 0x31, offset 0x10e
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8131, lo: 0xa9, hi: 0xa9},
+	// Block 0x32, offset 0x110
+	{value: 0x0004, lo: 0x02},
+	{value: 0x812e, lo: 0xb9, hi: 0xba},
+	{value: 0x812d, lo: 0xbb, hi: 0xbb},
+	// Block 0x33, offset 0x113
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8132, lo: 0x97, hi: 0x97},
+	{value: 0x812d, lo: 0x98, hi: 0x98},
+	// Block 0x34, offset 0x116
+	{value: 0x0000, lo: 0x03},
+	{value: 0x8104, lo: 0xa0, hi: 0xa0},
+	{value: 0x8132, lo: 0xb5, hi: 0xbc},
+	{value: 0x812d, lo: 0xbf, hi: 0xbf},
+	// Block 0x35, offset 0x11a
+	{value: 0x0000, lo: 0x04},
+	{value: 0x8132, lo: 0xb0, hi: 0xb4},
+	{value: 0x812d, lo: 0xb5, hi: 0xba},
+	{value: 0x8132, lo: 0xbb, hi: 0xbc},
+	{value: 0x812d, lo: 0xbd, hi: 0xbd},
+	// Block 0x36, offset 0x11f
+	{value: 0x0000, lo: 0x08},
+	{value: 0x2d69, lo: 0x80, hi: 0x80},
+	{value: 0x2d71, lo: 0x81, hi: 0x81},
+	{value: 0xa000, lo: 0x82, hi: 0x82},
+	{value: 0x2d79, lo: 0x83, hi: 0x83},
+	{value: 0x8104, lo: 0x84, hi: 0x84},
+	{value: 0x8132, lo: 0xab, hi: 0xab},
+	{value: 0x812d, lo: 0xac, hi: 0xac},
+	{value: 0x8132, lo: 0xad, hi: 0xb3},
+	// Block 0x37, offset 0x128
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xaa, hi: 0xab},
+	// Block 0x38, offset 0x12a
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8102, lo: 0xa6, hi: 0xa6},
+	{value: 0x8104, lo: 0xb2, hi: 0xb3},
+	// Block 0x39, offset 0x12d
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8102, lo: 0xb7, hi: 0xb7},
+	// Block 0x3a, offset 0x12f
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x8132, lo: 0x90, hi: 0x92},
+	{value: 0x8101, lo: 0x94, hi: 0x94},
+	{value: 0x812d, lo: 0x95, hi: 0x99},
+	{value: 0x8132, lo: 0x9a, hi: 0x9b},
+	{value: 0x812d, lo: 0x9c, hi: 0x9f},
+	{value: 0x8132, lo: 0xa0, hi: 0xa0},
+	{value: 0x8101, lo: 0xa2, hi: 0xa8},
+	{value: 0x812d, lo: 0xad, hi: 0xad},
+	{value: 0x8132, lo: 0xb4, hi: 0xb4},
+	{value: 0x8132, lo: 0xb8, hi: 0xb9},
+	// Block 0x3b, offset 0x13a
+	{value: 0x0004, lo: 0x03},
+	{value: 0x0433, lo: 0x80, hi: 0x81},
+	{value: 0x8100, lo: 0x97, hi: 0x97},
+	{value: 0x8100, lo: 0xbe, hi: 0xbe},
+	// Block 0x3c, offset 0x13e
+	{value: 0x0000, lo: 0x0d},
+	{value: 0x8132, lo: 0x90, hi: 0x91},
+	{value: 0x8101, lo: 0x92, hi: 0x93},
+	{value: 0x8132, lo: 0x94, hi: 0x97},
+	{value: 0x8101, lo: 0x98, hi: 0x9a},
+	{value: 0x8132, lo: 0x9b, hi: 0x9c},
+	{value: 0x8132, lo: 0xa1, hi: 0xa1},
+	{value: 0x8101, lo: 0xa5, hi: 0xa6},
+	{value: 0x8132, lo: 0xa7, hi: 0xa7},
+	{value: 0x812d, lo: 0xa8, hi: 0xa8},
+	{value: 0x8132, lo: 0xa9, hi: 0xa9},
+	{value: 0x8101, lo: 0xaa, hi: 0xab},
+	{value: 0x812d, lo: 0xac, hi: 0xaf},
+	{value: 0x8132, lo: 0xb0, hi: 0xb0},
+	// Block 0x3d, offset 0x14c
+	{value: 0x427e, lo: 0x02},
+	{value: 0x01b8, lo: 0xa6, hi: 0xa6},
+	{value: 0x0057, lo: 0xaa, hi: 0xab},
+	// Block 0x3e, offset 0x14f
+	{value: 0x0007, lo: 0x05},
+	{value: 0xa000, lo: 0x90, hi: 0x90},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	{value: 0xa000, lo: 0x94, hi: 0x94},
+	{value: 0x3bbc, lo: 0x9a, hi: 0x9b},
+	{value: 0x3bca, lo: 0xae, hi: 0xae},
+	// Block 0x3f, offset 0x155
+	{value: 0x000e, lo: 0x05},
+	{value: 0x3bd1, lo: 0x8d, hi: 0x8e},
+	{value: 0x3bd8, lo: 0x8f, hi: 0x8f},
+	{value: 0xa000, lo: 0x90, hi: 0x90},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	{value: 0xa000, lo: 0x94, hi: 0x94},
+	// Block 0x40, offset 0x15b
+	{value: 0x6405, lo: 0x0a},
+	{value: 0xa000, lo: 0x83, hi: 0x83},
+	{value: 0x3be6, lo: 0x84, hi: 0x84},
+	{value: 0xa000, lo: 0x88, hi: 0x88},
+	{value: 0x3bed, lo: 0x89, hi: 0x89},
+	{value: 0xa000, lo: 0x8b, hi: 0x8b},
+	{value: 0x3bf4, lo: 0x8c, hi: 0x8c},
+	{value: 0xa000, lo: 0xa3, hi: 0xa3},
+	{value: 0x3bfb, lo: 0xa4, hi: 0xa5},
+	{value: 0x3c02, lo: 0xa6, hi: 0xa6},
+	{value: 0xa000, lo: 0xbc, hi: 0xbc},
+	// Block 0x41, offset 0x166
+	{value: 0x0007, lo: 0x03},
+	{value: 0x3c6b, lo: 0xa0, hi: 0xa1},
+	{value: 0x3c95, lo: 0xa2, hi: 0xa3},
+	{value: 0x3cbf, lo: 0xaa, hi: 0xad},
+	// Block 0x42, offset 0x16a
+	{value: 0x0004, lo: 0x01},
+	{value: 0x048b, lo: 0xa9, hi: 0xaa},
+	// Block 0x43, offset 0x16c
+	{value: 0x0000, lo: 0x01},
+	{value: 0x44e0, lo: 0x9c, hi: 0x9c},
+	// Block 0x44, offset 0x16e
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xaf, hi: 0xb1},
+	// Block 0x45, offset 0x170
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xbf, hi: 0xbf},
+	// Block 0x46, offset 0x172
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xa0, hi: 0xbf},
+	// Block 0x47, offset 0x174
+	{value: 0x0000, lo: 0x05},
+	{value: 0x812c, lo: 0xaa, hi: 0xaa},
+	{value: 0x8131, lo: 0xab, hi: 0xab},
+	{value: 0x8133, lo: 0xac, hi: 0xac},
+	{value: 0x812e, lo: 0xad, hi: 0xad},
+	{value: 0x812f, lo: 0xae, hi: 0xaf},
+	// Block 0x48, offset 0x17a
+	{value: 0x0000, lo: 0x03},
+	{value: 0x4aa2, lo: 0xb3, hi: 0xb3},
+	{value: 0x4aa2, lo: 0xb5, hi: 0xb6},
+	{value: 0x4aa2, lo: 0xba, hi: 0xbf},
+	// Block 0x49, offset 0x17e
+	{value: 0x0000, lo: 0x01},
+	{value: 0x4aa2, lo: 0x8f, hi: 0xa3},
+	// Block 0x4a, offset 0x180
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8100, lo: 0xae, hi: 0xbe},
+	// Block 0x4b, offset 0x182
+	{value: 0x0000, lo: 0x07},
+	{value: 0x8100, lo: 0x84, hi: 0x84},
+	{value: 0x8100, lo: 0x87, hi: 0x87},
+	{value: 0x8100, lo: 0x90, hi: 0x90},
+	{value: 0x8100, lo: 0x9e, hi: 0x9e},
+	{value: 0x8100, lo: 0xa1, hi: 0xa1},
+	{value: 0x8100, lo: 0xb2, hi: 0xb2},
+	{value: 0x8100, lo: 0xbb, hi: 0xbb},
+	// Block 0x4c, offset 0x18a
+	{value: 0x0000, lo: 0x03},
+	{value: 0x8100, lo: 0x80, hi: 0x80},
+	{value: 0x8100, lo: 0x8b, hi: 0x8b},
+	{value: 0x8100, lo: 0x8e, hi: 0x8e},
+	// Block 0x4d, offset 0x18e
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8132, lo: 0xaf, hi: 0xaf},
+	{value: 0x8132, lo: 0xb4, hi: 0xbd},
+	// Block 0x4e, offset 0x191
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0x9e, hi: 0x9f},
+	// Block 0x4f, offset 0x193
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xb0, hi: 0xb1},
+	// Block 0x50, offset 0x195
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x86, hi: 0x86},
+	// Block 0x51, offset 0x197
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x84, hi: 0x84},
+	{value: 0x8132, lo: 0xa0, hi: 0xb1},
+	// Block 0x52, offset 0x19a
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0xab, hi: 0xad},
+	// Block 0x53, offset 0x19c
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x93, hi: 0x93},
+	// Block 0x54, offset 0x19e
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8102, lo: 0xb3, hi: 0xb3},
+	// Block 0x55, offset 0x1a0
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x80, hi: 0x80},
+	// Block 0x56, offset 0x1a2
+	{value: 0x0000, lo: 0x05},
+	{value: 0x8132, lo: 0xb0, hi: 0xb0},
+	{value: 0x8132, lo: 0xb2, hi: 0xb3},
+	{value: 0x812d, lo: 0xb4, hi: 0xb4},
+	{value: 0x8132, lo: 0xb7, hi: 0xb8},
+	{value: 0x8132, lo: 0xbe, hi: 0xbf},
+	// Block 0x57, offset 0x1a8
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8132, lo: 0x81, hi: 0x81},
+	{value: 0x8104, lo: 0xb6, hi: 0xb6},
+	// Block 0x58, offset 0x1ab
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xad, hi: 0xad},
+	// Block 0x59, offset 0x1ad
+	{value: 0x0000, lo: 0x06},
+	{value: 0xe500, lo: 0x80, hi: 0x80},
+	{value: 0xc600, lo: 0x81, hi: 0x9b},
+	{value: 0xe500, lo: 0x9c, hi: 0x9c},
+	{value: 0xc600, lo: 0x9d, hi: 0xb7},
+	{value: 0xe500, lo: 0xb8, hi: 0xb8},
+	{value: 0xc600, lo: 0xb9, hi: 0xbf},
+	// Block 0x5a, offset 0x1b4
+	{value: 0x0000, lo: 0x05},
+	{value: 0xc600, lo: 0x80, hi: 0x93},
+	{value: 0xe500, lo: 0x94, hi: 0x94},
+	{value: 0xc600, lo: 0x95, hi: 0xaf},
+	{value: 0xe500, lo: 0xb0, hi: 0xb0},
+	{value: 0xc600, lo: 0xb1, hi: 0xbf},
+	// Block 0x5b, offset 0x1ba
+	{value: 0x0000, lo: 0x05},
+	{value: 0xc600, lo: 0x80, hi: 0x8b},
+	{value: 0xe500, lo: 0x8c, hi: 0x8c},
+	{value: 0xc600, lo: 0x8d, hi: 0xa7},
+	{value: 0xe500, lo: 0xa8, hi: 0xa8},
+	{value: 0xc600, lo: 0xa9, hi: 0xbf},
+	// Block 0x5c, offset 0x1c0
+	{value: 0x0000, lo: 0x07},
+	{value: 0xc600, lo: 0x80, hi: 0x83},
+	{value: 0xe500, lo: 0x84, hi: 0x84},
+	{value: 0xc600, lo: 0x85, hi: 0x9f},
+	{value: 0xe500, lo: 0xa0, hi: 0xa0},
+	{value: 0xc600, lo: 0xa1, hi: 0xbb},
+	{value: 0xe500, lo: 0xbc, hi: 0xbc},
+	{value: 0xc600, lo: 0xbd, hi: 0xbf},
+	// Block 0x5d, offset 0x1c8
+	{value: 0x0000, lo: 0x05},
+	{value: 0xc600, lo: 0x80, hi: 0x97},
+	{value: 0xe500, lo: 0x98, hi: 0x98},
+	{value: 0xc600, lo: 0x99, hi: 0xb3},
+	{value: 0xe500, lo: 0xb4, hi: 0xb4},
+	{value: 0xc600, lo: 0xb5, hi: 0xbf},
+	// Block 0x5e, offset 0x1ce
+	{value: 0x0000, lo: 0x05},
+	{value: 0xc600, lo: 0x80, hi: 0x8f},
+	{value: 0xe500, lo: 0x90, hi: 0x90},
+	{value: 0xc600, lo: 0x91, hi: 0xab},
+	{value: 0xe500, lo: 0xac, hi: 0xac},
+	{value: 0xc600, lo: 0xad, hi: 0xbf},
+	// Block 0x5f, offset 0x1d4
+	{value: 0x0000, lo: 0x05},
+	{value: 0xc600, lo: 0x80, hi: 0x87},
+	{value: 0xe500, lo: 0x88, hi: 0x88},
+	{value: 0xc600, lo: 0x89, hi: 0xa3},
+	{value: 0xe500, lo: 0xa4, hi: 0xa4},
+	{value: 0xc600, lo: 0xa5, hi: 0xbf},
+	// Block 0x60, offset 0x1da
+	{value: 0x0000, lo: 0x03},
+	{value: 0xc600, lo: 0x80, hi: 0x87},
+	{value: 0xe500, lo: 0x88, hi: 0x88},
+	{value: 0xc600, lo: 0x89, hi: 0xa3},
+	// Block 0x61, offset 0x1de
+	{value: 0x0006, lo: 0x0d},
+	{value: 0x4393, lo: 0x9d, hi: 0x9d},
+	{value: 0x8115, lo: 0x9e, hi: 0x9e},
+	{value: 0x4405, lo: 0x9f, hi: 0x9f},
+	{value: 0x43f3, lo: 0xaa, hi: 0xab},
+	{value: 0x44f7, lo: 0xac, hi: 0xac},
+	{value: 0x44ff, lo: 0xad, hi: 0xad},
+	{value: 0x434b, lo: 0xae, hi: 0xb1},
+	{value: 0x4369, lo: 0xb2, hi: 0xb4},
+	{value: 0x4381, lo: 0xb5, hi: 0xb6},
+	{value: 0x438d, lo: 0xb8, hi: 0xb8},
+	{value: 0x4399, lo: 0xb9, hi: 0xbb},
+	{value: 0x43b1, lo: 0xbc, hi: 0xbc},
+	{value: 0x43b7, lo: 0xbe, hi: 0xbe},
+	// Block 0x62, offset 0x1ec
+	{value: 0x0006, lo: 0x08},
+	{value: 0x43bd, lo: 0x80, hi: 0x81},
+	{value: 0x43c9, lo: 0x83, hi: 0x84},
+	{value: 0x43db, lo: 0x86, hi: 0x89},
+	{value: 0x43ff, lo: 0x8a, hi: 0x8a},
+	{value: 0x437b, lo: 0x8b, hi: 0x8b},
+	{value: 0x4363, lo: 0x8c, hi: 0x8c},
+	{value: 0x43ab, lo: 0x8d, hi: 0x8d},
+	{value: 0x43d5, lo: 0x8e, hi: 0x8e},
+	// Block 0x63, offset 0x1f5
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8100, lo: 0xa4, hi: 0xa5},
+	{value: 0x8100, lo: 0xb0, hi: 0xb1},
+	// Block 0x64, offset 0x1f8
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8100, lo: 0x9b, hi: 0x9d},
+	{value: 0x8200, lo: 0x9e, hi: 0xa3},
+	// Block 0x65, offset 0x1fb
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8100, lo: 0x90, hi: 0x90},
+	// Block 0x66, offset 0x1fd
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8100, lo: 0x99, hi: 0x99},
+	{value: 0x8200, lo: 0xb2, hi: 0xb4},
+	// Block 0x67, offset 0x200
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8100, lo: 0xbc, hi: 0xbd},
+	// Block 0x68, offset 0x202
+	{value: 0x0000, lo: 0x03},
+	{value: 0x8132, lo: 0xa0, hi: 0xa6},
+	{value: 0x812d, lo: 0xa7, hi: 0xad},
+	{value: 0x8132, lo: 0xae, hi: 0xaf},
+	// Block 0x69, offset 0x206
+	{value: 0x0000, lo: 0x04},
+	{value: 0x8100, lo: 0x89, hi: 0x8c},
+	{value: 0x8100, lo: 0xb0, hi: 0xb2},
+	{value: 0x8100, lo: 0xb4, hi: 0xb4},
+	{value: 0x8100, lo: 0xb6, hi: 0xbf},
+	// Block 0x6a, offset 0x20b
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8100, lo: 0x81, hi: 0x8c},
+	// Block 0x6b, offset 0x20d
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8100, lo: 0xb5, hi: 0xba},
+	// Block 0x6c, offset 0x20f
+	{value: 0x0000, lo: 0x04},
+	{value: 0x4aa2, lo: 0x9e, hi: 0x9f},
+	{value: 0x4aa2, lo: 0xa3, hi: 0xa3},
+	{value: 0x4aa2, lo: 0xa5, hi: 0xa6},
+	{value: 0x4aa2, lo: 0xaa, hi: 0xaf},
+	// Block 0x6d, offset 0x214
+	{value: 0x0000, lo: 0x05},
+	{value: 0x4aa2, lo: 0x82, hi: 0x87},
+	{value: 0x4aa2, lo: 0x8a, hi: 0x8f},
+	{value: 0x4aa2, lo: 0x92, hi: 0x97},
+	{value: 0x4aa2, lo: 0x9a, hi: 0x9c},
+	{value: 0x8100, lo: 0xa3, hi: 0xa3},
+	// Block 0x6e, offset 0x21a
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0xbd, hi: 0xbd},
+	// Block 0x6f, offset 0x21c
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0xa0, hi: 0xa0},
+	// Block 0x70, offset 0x21e
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xb6, hi: 0xba},
+	// Block 0x71, offset 0x220
+	{value: 0x002c, lo: 0x05},
+	{value: 0x812d, lo: 0x8d, hi: 0x8d},
+	{value: 0x8132, lo: 0x8f, hi: 0x8f},
+	{value: 0x8132, lo: 0xb8, hi: 0xb8},
+	{value: 0x8101, lo: 0xb9, hi: 0xba},
+	{value: 0x8104, lo: 0xbf, hi: 0xbf},
+	// Block 0x72, offset 0x226
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8132, lo: 0xa5, hi: 0xa5},
+	{value: 0x812d, lo: 0xa6, hi: 0xa6},
+	// Block 0x73, offset 0x229
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xa4, hi: 0xa7},
+	// Block 0x74, offset 0x22b
+	{value: 0x0000, lo: 0x05},
+	{value: 0x812d, lo: 0x86, hi: 0x87},
+	{value: 0x8132, lo: 0x88, hi: 0x8a},
+	{value: 0x812d, lo: 0x8b, hi: 0x8b},
+	{value: 0x8132, lo: 0x8c, hi: 0x8c},
+	{value: 0x812d, lo: 0x8d, hi: 0x90},
+	// Block 0x75, offset 0x231
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x86, hi: 0x86},
+	{value: 0x8104, lo: 0xbf, hi: 0xbf},
+	// Block 0x76, offset 0x234
+	{value: 0x17fe, lo: 0x07},
+	{value: 0xa000, lo: 0x99, hi: 0x99},
+	{value: 0x423b, lo: 0x9a, hi: 0x9a},
+	{value: 0xa000, lo: 0x9b, hi: 0x9b},
+	{value: 0x4245, lo: 0x9c, hi: 0x9c},
+	{value: 0xa000, lo: 0xa5, hi: 0xa5},
+	{value: 0x424f, lo: 0xab, hi: 0xab},
+	{value: 0x8104, lo: 0xb9, hi: 0xba},
+	// Block 0x77, offset 0x23c
+	{value: 0x0000, lo: 0x06},
+	{value: 0x8132, lo: 0x80, hi: 0x82},
+	{value: 0x9900, lo: 0xa7, hi: 0xa7},
+	{value: 0x2d81, lo: 0xae, hi: 0xae},
+	{value: 0x2d8b, lo: 0xaf, hi: 0xaf},
+	{value: 0xa000, lo: 0xb1, hi: 0xb2},
+	{value: 0x8104, lo: 0xb3, hi: 0xb4},
+	// Block 0x78, offset 0x243
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x80, hi: 0x80},
+	{value: 0x8102, lo: 0x8a, hi: 0x8a},
+	// Block 0x79, offset 0x246
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0xb5, hi: 0xb5},
+	{value: 0x8102, lo: 0xb6, hi: 0xb6},
+	// Block 0x7a, offset 0x249
+	{value: 0x0002, lo: 0x01},
+	{value: 0x8102, lo: 0xa9, hi: 0xaa},
+	// Block 0x7b, offset 0x24b
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8102, lo: 0xbb, hi: 0xbc},
+	{value: 0x9900, lo: 0xbe, hi: 0xbe},
+	// Block 0x7c, offset 0x24e
+	{value: 0x0000, lo: 0x07},
+	{value: 0xa000, lo: 0x87, hi: 0x87},
+	{value: 0x2d95, lo: 0x8b, hi: 0x8b},
+	{value: 0x2d9f, lo: 0x8c, hi: 0x8c},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x97, hi: 0x97},
+	{value: 0x8132, lo: 0xa6, hi: 0xac},
+	{value: 0x8132, lo: 0xb0, hi: 0xb4},
+	// Block 0x7d, offset 0x256
+	{value: 0x0000, lo: 0x03},
+	{value: 0x8104, lo: 0x82, hi: 0x82},
+	{value: 0x8102, lo: 0x86, hi: 0x86},
+	{value: 0x8132, lo: 0x9e, hi: 0x9e},
+	// Block 0x7e, offset 0x25a
+	{value: 0x6b57, lo: 0x06},
+	{value: 0x9900, lo: 0xb0, hi: 0xb0},
+	{value: 0xa000, lo: 0xb9, hi: 0xb9},
+	{value: 0x9900, lo: 0xba, hi: 0xba},
+	{value: 0x2db3, lo: 0xbb, hi: 0xbb},
+	{value: 0x2da9, lo: 0xbc, hi: 0xbd},
+	{value: 0x2dbd, lo: 0xbe, hi: 0xbe},
+	// Block 0x7f, offset 0x261
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x82, hi: 0x82},
+	{value: 0x8102, lo: 0x83, hi: 0x83},
+	// Block 0x80, offset 0x264
+	{value: 0x0000, lo: 0x05},
+	{value: 0x9900, lo: 0xaf, hi: 0xaf},
+	{value: 0xa000, lo: 0xb8, hi: 0xb9},
+	{value: 0x2dc7, lo: 0xba, hi: 0xba},
+	{value: 0x2dd1, lo: 0xbb, hi: 0xbb},
+	{value: 0x8104, lo: 0xbf, hi: 0xbf},
+	// Block 0x81, offset 0x26a
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8102, lo: 0x80, hi: 0x80},
+	// Block 0x82, offset 0x26c
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0xb6, hi: 0xb6},
+	{value: 0x8102, lo: 0xb7, hi: 0xb7},
+	// Block 0x83, offset 0x26f
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xab, hi: 0xab},
+	// Block 0x84, offset 0x271
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0xb9, hi: 0xb9},
+	{value: 0x8102, lo: 0xba, hi: 0xba},
+	// Block 0x85, offset 0x274
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xa0, hi: 0xa0},
+	// Block 0x86, offset 0x276
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xb4, hi: 0xb4},
+	// Block 0x87, offset 0x278
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x87, hi: 0x87},
+	// Block 0x88, offset 0x27a
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x99, hi: 0x99},
+	// Block 0x89, offset 0x27c
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8102, lo: 0x82, hi: 0x82},
+	{value: 0x8104, lo: 0x84, hi: 0x85},
+	// Block 0x8a, offset 0x27f
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x97, hi: 0x97},
+	// Block 0x8b, offset 0x281
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8101, lo: 0xb0, hi: 0xb4},
+	// Block 0x8c, offset 0x283
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xb0, hi: 0xb6},
+	// Block 0x8d, offset 0x285
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8101, lo: 0x9e, hi: 0x9e},
+	// Block 0x8e, offset 0x287
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x45cf, lo: 0x9e, hi: 0x9e},
+	{value: 0x45d9, lo: 0x9f, hi: 0x9f},
+	{value: 0x460d, lo: 0xa0, hi: 0xa0},
+	{value: 0x461b, lo: 0xa1, hi: 0xa1},
+	{value: 0x4629, lo: 0xa2, hi: 0xa2},
+	{value: 0x4637, lo: 0xa3, hi: 0xa3},
+	{value: 0x4645, lo: 0xa4, hi: 0xa4},
+	{value: 0x812b, lo: 0xa5, hi: 0xa6},
+	{value: 0x8101, lo: 0xa7, hi: 0xa9},
+	{value: 0x8130, lo: 0xad, hi: 0xad},
+	{value: 0x812b, lo: 0xae, hi: 0xb2},
+	{value: 0x812d, lo: 0xbb, hi: 0xbf},
+	// Block 0x8f, offset 0x294
+	{value: 0x0000, lo: 0x09},
+	{value: 0x812d, lo: 0x80, hi: 0x82},
+	{value: 0x8132, lo: 0x85, hi: 0x89},
+	{value: 0x812d, lo: 0x8a, hi: 0x8b},
+	{value: 0x8132, lo: 0xaa, hi: 0xad},
+	{value: 0x45e3, lo: 0xbb, hi: 0xbb},
+	{value: 0x45ed, lo: 0xbc, hi: 0xbc},
+	{value: 0x4653, lo: 0xbd, hi: 0xbd},
+	{value: 0x466f, lo: 0xbe, hi: 0xbe},
+	{value: 0x4661, lo: 0xbf, hi: 0xbf},
+	// Block 0x90, offset 0x29e
+	{value: 0x0000, lo: 0x01},
+	{value: 0x467d, lo: 0x80, hi: 0x80},
+	// Block 0x91, offset 0x2a0
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0x82, hi: 0x84},
+	// Block 0x92, offset 0x2a2
+	{value: 0x0000, lo: 0x05},
+	{value: 0x8132, lo: 0x80, hi: 0x86},
+	{value: 0x8132, lo: 0x88, hi: 0x98},
+	{value: 0x8132, lo: 0x9b, hi: 0xa1},
+	{value: 0x8132, lo: 0xa3, hi: 0xa4},
+	{value: 0x8132, lo: 0xa6, hi: 0xaa},
+	// Block 0x93, offset 0x2a8
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xac, hi: 0xaf},
+	// Block 0x94, offset 0x2aa
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0x90, hi: 0x96},
+	// Block 0x95, offset 0x2ac
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8132, lo: 0x84, hi: 0x89},
+	{value: 0x8102, lo: 0x8a, hi: 0x8a},
+	// Block 0x96, offset 0x2af
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8100, lo: 0x93, hi: 0x93},
+}
+
+// lookup returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *nfkcTrie) lookup(s []byte) (v uint16, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < 0x80: // is ASCII
+		return nfkcValues[c0], 1
+	case c0 < 0xC2:
+		return 0, 1 // Illegal UTF-8: not a starter, not ASCII.
+	case c0 < 0xE0: // 2-byte UTF-8
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := nfkcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c1), 2
+	case c0 < 0xF0: // 3-byte UTF-8
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := nfkcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = nfkcIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c2), 3
+	case c0 < 0xF8: // 4-byte UTF-8
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := nfkcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = nfkcIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		o = uint32(i)<<6 + uint32(c2)
+		i = nfkcIndex[o]
+		c3 := s[3]
+		if c3 < 0x80 || 0xC0 <= c3 {
+			return 0, 3 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must start with a full and valid UTF-8 encoded rune.
+func (t *nfkcTrie) lookupUnsafe(s []byte) uint16 {
+	c0 := s[0]
+	if c0 < 0x80 { // is ASCII
+		return nfkcValues[c0]
+	}
+	i := nfkcIndex[c0]
+	if c0 < 0xE0 { // 2-byte UTF-8
+		return t.lookupValue(uint32(i), s[1])
+	}
+	i = nfkcIndex[uint32(i)<<6+uint32(s[1])]
+	if c0 < 0xF0 { // 3-byte UTF-8
+		return t.lookupValue(uint32(i), s[2])
+	}
+	i = nfkcIndex[uint32(i)<<6+uint32(s[2])]
+	if c0 < 0xF8 { // 4-byte UTF-8
+		return t.lookupValue(uint32(i), s[3])
+	}
+	return 0
+}
+
+// lookupString returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *nfkcTrie) lookupString(s string) (v uint16, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < 0x80: // is ASCII
+		return nfkcValues[c0], 1
+	case c0 < 0xC2:
+		return 0, 1 // Illegal UTF-8: not a starter, not ASCII.
+	case c0 < 0xE0: // 2-byte UTF-8
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := nfkcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c1), 2
+	case c0 < 0xF0: // 3-byte UTF-8
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := nfkcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = nfkcIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c2), 3
+	case c0 < 0xF8: // 4-byte UTF-8
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := nfkcIndex[c0]
+		c1 := s[1]
+		if c1 < 0x80 || 0xC0 <= c1 {
+			return 0, 1 // Illegal UTF-8: not a continuation byte.
+		}
+		o := uint32(i)<<6 + uint32(c1)
+		i = nfkcIndex[o]
+		c2 := s[2]
+		if c2 < 0x80 || 0xC0 <= c2 {
+			return 0, 2 // Illegal UTF-8: not a continuation byte.
+		}
+		o = uint32(i)<<6 + uint32(c2)
+		i = nfkcIndex[o]
+		c3 := s[3]
+		if c3 < 0x80 || 0xC0 <= c3 {
+			return 0, 3 // Illegal UTF-8: not a continuation byte.
+		}
+		return t.lookupValue(uint32(i), c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupStringUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must start with a full and valid UTF-8 encoded rune.
+func (t *nfkcTrie) lookupStringUnsafe(s string) uint16 {
+	c0 := s[0]
+	if c0 < 0x80 { // is ASCII
+		return nfkcValues[c0]
+	}
+	i := nfkcIndex[c0]
+	if c0 < 0xE0 { // 2-byte UTF-8
+		return t.lookupValue(uint32(i), s[1])
+	}
+	i = nfkcIndex[uint32(i)<<6+uint32(s[1])]
+	if c0 < 0xF0 { // 3-byte UTF-8
+		return t.lookupValue(uint32(i), s[2])
+	}
+	i = nfkcIndex[uint32(i)<<6+uint32(s[2])]
+	if c0 < 0xF8 { // 4-byte UTF-8
+		return t.lookupValue(uint32(i), s[3])
+	}
+	return 0
+}
+
+// nfkcTrie. Total size: 18684 bytes (18.25 KiB). Checksum: 113e23c477adfabd.
+type nfkcTrie struct{}
+
+func newNfkcTrie(i int) *nfkcTrie {
+	return &nfkcTrie{}
+}
+
+// lookupValue determines the type of block n and looks up the value for b.
+func (t *nfkcTrie) lookupValue(n uint32, b byte) uint16 {
+	switch {
+	case n < 92:
+		return uint16(nfkcValues[n<<6+uint32(b)])
+	default:
+		n -= 92
+		return uint16(nfkcSparse.lookup(n, b))
+	}
+}
+
+// nfkcValues: 94 blocks, 6016 entries, 12032 bytes
+// The third block is the zero block.
+var nfkcValues = [6016]uint16{
+	// Block 0x0, offset 0x0
+	0x3c: 0xa000, 0x3d: 0xa000, 0x3e: 0xa000,
+	// Block 0x1, offset 0x40
+	0x41: 0xa000, 0x42: 0xa000, 0x43: 0xa000, 0x44: 0xa000, 0x45: 0xa000,
+	0x46: 0xa000, 0x47: 0xa000, 0x48: 0xa000, 0x49: 0xa000, 0x4a: 0xa000, 0x4b: 0xa000,
+	0x4c: 0xa000, 0x4d: 0xa000, 0x4e: 0xa000, 0x4f: 0xa000, 0x50: 0xa000,
+	0x52: 0xa000, 0x53: 0xa000, 0x54: 0xa000, 0x55: 0xa000, 0x56: 0xa000, 0x57: 0xa000,
+	0x58: 0xa000, 0x59: 0xa000, 0x5a: 0xa000,
+	0x61: 0xa000, 0x62: 0xa000, 0x63: 0xa000,
+	0x64: 0xa000, 0x65: 0xa000, 0x66: 0xa000, 0x67: 0xa000, 0x68: 0xa000, 0x69: 0xa000,
+	0x6a: 0xa000, 0x6b: 0xa000, 0x6c: 0xa000, 0x6d: 0xa000, 0x6e: 0xa000, 0x6f: 0xa000,
+	0x70: 0xa000, 0x72: 0xa000, 0x73: 0xa000, 0x74: 0xa000, 0x75: 0xa000,
+	0x76: 0xa000, 0x77: 0xa000, 0x78: 0xa000, 0x79: 0xa000, 0x7a: 0xa000,
+	// Block 0x2, offset 0x80
+	// Block 0x3, offset 0xc0
+	0xc0: 0x2f72, 0xc1: 0x2f77, 0xc2: 0x468b, 0xc3: 0x2f7c, 0xc4: 0x469a, 0xc5: 0x469f,
+	0xc6: 0xa000, 0xc7: 0x46a9, 0xc8: 0x2fe5, 0xc9: 0x2fea, 0xca: 0x46ae, 0xcb: 0x2ffe,
+	0xcc: 0x3071, 0xcd: 0x3076, 0xce: 0x307b, 0xcf: 0x46c2, 0xd1: 0x3107,
+	0xd2: 0x312a, 0xd3: 0x312f, 0xd4: 0x46cc, 0xd5: 0x46d1, 0xd6: 0x46e0,
+	0xd8: 0xa000, 0xd9: 0x31b6, 0xda: 0x31bb, 0xdb: 0x31c0, 0xdc: 0x4712, 0xdd: 0x3238,
+	0xe0: 0x327e, 0xe1: 0x3283, 0xe2: 0x471c, 0xe3: 0x3288,
+	0xe4: 0x472b, 0xe5: 0x4730, 0xe6: 0xa000, 0xe7: 0x473a, 0xe8: 0x32f1, 0xe9: 0x32f6,
+	0xea: 0x473f, 0xeb: 0x330a, 0xec: 0x3382, 0xed: 0x3387, 0xee: 0x338c, 0xef: 0x4753,
+	0xf1: 0x3418, 0xf2: 0x343b, 0xf3: 0x3440, 0xf4: 0x475d, 0xf5: 0x4762,
+	0xf6: 0x4771, 0xf8: 0xa000, 0xf9: 0x34cc, 0xfa: 0x34d1, 0xfb: 0x34d6,
+	0xfc: 0x47a3, 0xfd: 0x3553, 0xff: 0x356c,
+	// Block 0x4, offset 0x100
+	0x100: 0x2f81, 0x101: 0x328d, 0x102: 0x4690, 0x103: 0x4721, 0x104: 0x2f9f, 0x105: 0x32ab,
+	0x106: 0x2fb3, 0x107: 0x32bf, 0x108: 0x2fb8, 0x109: 0x32c4, 0x10a: 0x2fbd, 0x10b: 0x32c9,
+	0x10c: 0x2fc2, 0x10d: 0x32ce, 0x10e: 0x2fcc, 0x10f: 0x32d8,
+	0x112: 0x46b3, 0x113: 0x4744, 0x114: 0x2ff4, 0x115: 0x3300, 0x116: 0x2ff9, 0x117: 0x3305,
+	0x118: 0x3017, 0x119: 0x3323, 0x11a: 0x3008, 0x11b: 0x3314, 0x11c: 0x3030, 0x11d: 0x333c,
+	0x11e: 0x303a, 0x11f: 0x3346, 0x120: 0x303f, 0x121: 0x334b, 0x122: 0x3049, 0x123: 0x3355,
+	0x124: 0x304e, 0x125: 0x335a, 0x128: 0x3080, 0x129: 0x3391,
+	0x12a: 0x3085, 0x12b: 0x3396, 0x12c: 0x308a, 0x12d: 0x339b, 0x12e: 0x30ad, 0x12f: 0x33b9,
+	0x130: 0x308f, 0x132: 0x195d, 0x133: 0x19ea, 0x134: 0x30b7, 0x135: 0x33c3,
+	0x136: 0x30cb, 0x137: 0x33dc, 0x139: 0x30d5, 0x13a: 0x33e6, 0x13b: 0x30df,
+	0x13c: 0x33f0, 0x13d: 0x30da, 0x13e: 0x33eb, 0x13f: 0x1baf,
+	// Block 0x5, offset 0x140
+	0x140: 0x1c37, 0x143: 0x3102, 0x144: 0x3413, 0x145: 0x311b,
+	0x146: 0x342c, 0x147: 0x3111, 0x148: 0x3422, 0x149: 0x1c5f,
+	0x14c: 0x46d6, 0x14d: 0x4767, 0x14e: 0x3134, 0x14f: 0x3445, 0x150: 0x313e, 0x151: 0x344f,
+	0x154: 0x315c, 0x155: 0x346d, 0x156: 0x3175, 0x157: 0x3486,
+	0x158: 0x3166, 0x159: 0x3477, 0x15a: 0x46f9, 0x15b: 0x478a, 0x15c: 0x317f, 0x15d: 0x3490,
+	0x15e: 0x318e, 0x15f: 0x349f, 0x160: 0x46fe, 0x161: 0x478f, 0x162: 0x31a7, 0x163: 0x34bd,
+	0x164: 0x3198, 0x165: 0x34ae, 0x168: 0x4708, 0x169: 0x4799,
+	0x16a: 0x470d, 0x16b: 0x479e, 0x16c: 0x31c5, 0x16d: 0x34db, 0x16e: 0x31cf, 0x16f: 0x34e5,
+	0x170: 0x31d4, 0x171: 0x34ea, 0x172: 0x31f2, 0x173: 0x3508, 0x174: 0x3215, 0x175: 0x352b,
+	0x176: 0x323d, 0x177: 0x3558, 0x178: 0x3251, 0x179: 0x3260, 0x17a: 0x3580, 0x17b: 0x326a,
+	0x17c: 0x358a, 0x17d: 0x326f, 0x17e: 0x358f, 0x17f: 0x00a7,
+	// Block 0x6, offset 0x180
+	0x184: 0x2df1, 0x185: 0x2df7,
+	0x186: 0x2dfd, 0x187: 0x1972, 0x188: 0x1975, 0x189: 0x1a0b, 0x18a: 0x198a, 0x18b: 0x198d,
+	0x18c: 0x1a41, 0x18d: 0x2f8b, 0x18e: 0x3297, 0x18f: 0x3099, 0x190: 0x33a5, 0x191: 0x3143,
+	0x192: 0x3454, 0x193: 0x31d9, 0x194: 0x34ef, 0x195: 0x39d2, 0x196: 0x3b61, 0x197: 0x39cb,
+	0x198: 0x3b5a, 0x199: 0x39d9, 0x19a: 0x3b68, 0x19b: 0x39c4, 0x19c: 0x3b53,
+	0x19e: 0x38b3, 0x19f: 0x3a42, 0x1a0: 0x38ac, 0x1a1: 0x3a3b, 0x1a2: 0x35b6, 0x1a3: 0x35c8,
+	0x1a6: 0x3044, 0x1a7: 0x3350, 0x1a8: 0x30c1, 0x1a9: 0x33d2,
+	0x1aa: 0x46ef, 0x1ab: 0x4780, 0x1ac: 0x3993, 0x1ad: 0x3b22, 0x1ae: 0x35da, 0x1af: 0x35e0,
+	0x1b0: 0x33c8, 0x1b1: 0x1942, 0x1b2: 0x1945, 0x1b3: 0x19d2, 0x1b4: 0x302b, 0x1b5: 0x3337,
+	0x1b8: 0x30fd, 0x1b9: 0x340e, 0x1ba: 0x38ba, 0x1bb: 0x3a49,
+	0x1bc: 0x35b0, 0x1bd: 0x35c2, 0x1be: 0x35bc, 0x1bf: 0x35ce,
+	// Block 0x7, offset 0x1c0
+	0x1c0: 0x2f90, 0x1c1: 0x329c, 0x1c2: 0x2f95, 0x1c3: 0x32a1, 0x1c4: 0x300d, 0x1c5: 0x3319,
+	0x1c6: 0x3012, 0x1c7: 0x331e, 0x1c8: 0x309e, 0x1c9: 0x33aa, 0x1ca: 0x30a3, 0x1cb: 0x33af,
+	0x1cc: 0x3148, 0x1cd: 0x3459, 0x1ce: 0x314d, 0x1cf: 0x345e, 0x1d0: 0x316b, 0x1d1: 0x347c,
+	0x1d2: 0x3170, 0x1d3: 0x3481, 0x1d4: 0x31de, 0x1d5: 0x34f4, 0x1d6: 0x31e3, 0x1d7: 0x34f9,
+	0x1d8: 0x3189, 0x1d9: 0x349a, 0x1da: 0x31a2, 0x1db: 0x34b8,
+	0x1de: 0x305d, 0x1df: 0x3369,
+	0x1e6: 0x4695, 0x1e7: 0x4726, 0x1e8: 0x46bd, 0x1e9: 0x474e,
+	0x1ea: 0x3962, 0x1eb: 0x3af1, 0x1ec: 0x393f, 0x1ed: 0x3ace, 0x1ee: 0x46db, 0x1ef: 0x476c,
+	0x1f0: 0x395b, 0x1f1: 0x3aea, 0x1f2: 0x3247, 0x1f3: 0x3562,
+	// Block 0x8, offset 0x200
+	0x200: 0x9932, 0x201: 0x9932, 0x202: 0x9932, 0x203: 0x9932, 0x204: 0x9932, 0x205: 0x8132,
+	0x206: 0x9932, 0x207: 0x9932, 0x208: 0x9932, 0x209: 0x9932, 0x20a: 0x9932, 0x20b: 0x9932,
+	0x20c: 0x9932, 0x20d: 0x8132, 0x20e: 0x8132, 0x20f: 0x9932, 0x210: 0x8132, 0x211: 0x9932,
+	0x212: 0x8132, 0x213: 0x9932, 0x214: 0x9932, 0x215: 0x8133, 0x216: 0x812d, 0x217: 0x812d,
+	0x218: 0x812d, 0x219: 0x812d, 0x21a: 0x8133, 0x21b: 0x992b, 0x21c: 0x812d, 0x21d: 0x812d,
+	0x21e: 0x812d, 0x21f: 0x812d, 0x220: 0x812d, 0x221: 0x8129, 0x222: 0x8129, 0x223: 0x992d,
+	0x224: 0x992d, 0x225: 0x992d, 0x226: 0x992d, 0x227: 0x9929, 0x228: 0x9929, 0x229: 0x812d,
+	0x22a: 0x812d, 0x22b: 0x812d, 0x22c: 0x812d, 0x22d: 0x992d, 0x22e: 0x992d, 0x22f: 0x812d,
+	0x230: 0x992d, 0x231: 0x992d, 0x232: 0x812d, 0x233: 0x812d, 0x234: 0x8101, 0x235: 0x8101,
+	0x236: 0x8101, 0x237: 0x8101, 0x238: 0x9901, 0x239: 0x812d, 0x23a: 0x812d, 0x23b: 0x812d,
+	0x23c: 0x812d, 0x23d: 0x8132, 0x23e: 0x8132, 0x23f: 0x8132,
+	// Block 0x9, offset 0x240
+	0x240: 0x49b1, 0x241: 0x49b6, 0x242: 0x9932, 0x243: 0x49bb, 0x244: 0x4a74, 0x245: 0x9936,
+	0x246: 0x8132, 0x247: 0x812d, 0x248: 0x812d, 0x249: 0x812d, 0x24a: 0x8132, 0x24b: 0x8132,
+	0x24c: 0x8132, 0x24d: 0x812d, 0x24e: 0x812d, 0x250: 0x8132, 0x251: 0x8132,
+	0x252: 0x8132, 0x253: 0x812d, 0x254: 0x812d, 0x255: 0x812d, 0x256: 0x812d, 0x257: 0x8132,
+	0x258: 0x8133, 0x259: 0x812d, 0x25a: 0x812d, 0x25b: 0x8132, 0x25c: 0x8134, 0x25d: 0x8135,
+	0x25e: 0x8135, 0x25f: 0x8134, 0x260: 0x8135, 0x261: 0x8135, 0x262: 0x8134, 0x263: 0x8132,
+	0x264: 0x8132, 0x265: 0x8132, 0x266: 0x8132, 0x267: 0x8132, 0x268: 0x8132, 0x269: 0x8132,
+	0x26a: 0x8132, 0x26b: 0x8132, 0x26c: 0x8132, 0x26d: 0x8132, 0x26e: 0x8132, 0x26f: 0x8132,
+	0x274: 0x0170,
+	0x27a: 0x42a8,
+	0x27e: 0x0037,
+	// Block 0xa, offset 0x280
+	0x284: 0x425d, 0x285: 0x447e,
+	0x286: 0x35ec, 0x287: 0x00ce, 0x288: 0x360a, 0x289: 0x3616, 0x28a: 0x3628,
+	0x28c: 0x3646, 0x28e: 0x3658, 0x28f: 0x3676, 0x290: 0x3e0b, 0x291: 0xa000,
+	0x295: 0xa000, 0x297: 0xa000,
+	0x299: 0xa000,
+	0x29f: 0xa000, 0x2a1: 0xa000,
+	0x2a5: 0xa000, 0x2a9: 0xa000,
+	0x2aa: 0x363a, 0x2ab: 0x366a, 0x2ac: 0x4801, 0x2ad: 0x369a, 0x2ae: 0x482b, 0x2af: 0x36ac,
+	0x2b0: 0x3e73, 0x2b1: 0xa000, 0x2b5: 0xa000,
+	0x2b7: 0xa000, 0x2b9: 0xa000,
+	0x2bf: 0xa000,
+	// Block 0xb, offset 0x2c0
+	0x2c1: 0xa000, 0x2c5: 0xa000,
+	0x2c9: 0xa000, 0x2ca: 0x4843, 0x2cb: 0x4861,
+	0x2cc: 0x36ca, 0x2cd: 0x36e2, 0x2ce: 0x4879, 0x2d0: 0x01be, 0x2d1: 0x01d0,
+	0x2d2: 0x01ac, 0x2d3: 0x430f, 0x2d4: 0x4315, 0x2d5: 0x01fa, 0x2d6: 0x01e8,
+	0x2f0: 0x01d6, 0x2f1: 0x01eb, 0x2f2: 0x01ee, 0x2f4: 0x0188, 0x2f5: 0x01c7,
+	0x2f9: 0x01a6,
+	// Block 0xc, offset 0x300
+	0x300: 0x3724, 0x301: 0x3730, 0x303: 0x371e,
+	0x306: 0xa000, 0x307: 0x370c,
+	0x30c: 0x3760, 0x30d: 0x3748, 0x30e: 0x3772, 0x310: 0xa000,
+	0x313: 0xa000, 0x315: 0xa000, 0x316: 0xa000, 0x317: 0xa000,
+	0x318: 0xa000, 0x319: 0x3754, 0x31a: 0xa000,
+	0x31e: 0xa000, 0x323: 0xa000,
+	0x327: 0xa000,
+	0x32b: 0xa000, 0x32d: 0xa000,
+	0x330: 0xa000, 0x333: 0xa000, 0x335: 0xa000,
+	0x336: 0xa000, 0x337: 0xa000, 0x338: 0xa000, 0x339: 0x37d8, 0x33a: 0xa000,
+	0x33e: 0xa000,
+	// Block 0xd, offset 0x340
+	0x341: 0x3736, 0x342: 0x37ba,
+	0x350: 0x3712, 0x351: 0x3796,
+	0x352: 0x3718, 0x353: 0x379c, 0x356: 0x372a, 0x357: 0x37ae,
+	0x358: 0xa000, 0x359: 0xa000, 0x35a: 0x382c, 0x35b: 0x3832, 0x35c: 0x373c, 0x35d: 0x37c0,
+	0x35e: 0x3742, 0x35f: 0x37c6, 0x362: 0x374e, 0x363: 0x37d2,
+	0x364: 0x375a, 0x365: 0x37de, 0x366: 0x3766, 0x367: 0x37ea, 0x368: 0xa000, 0x369: 0xa000,
+	0x36a: 0x3838, 0x36b: 0x383e, 0x36c: 0x3790, 0x36d: 0x3814, 0x36e: 0x376c, 0x36f: 0x37f0,
+	0x370: 0x3778, 0x371: 0x37fc, 0x372: 0x377e, 0x373: 0x3802, 0x374: 0x3784, 0x375: 0x3808,
+	0x378: 0x378a, 0x379: 0x380e,
+	// Block 0xe, offset 0x380
+	0x387: 0x1d64,
+	0x391: 0x812d,
+	0x392: 0x8132, 0x393: 0x8132, 0x394: 0x8132, 0x395: 0x8132, 0x396: 0x812d, 0x397: 0x8132,
+	0x398: 0x8132, 0x399: 0x8132, 0x39a: 0x812e, 0x39b: 0x812d, 0x39c: 0x8132, 0x39d: 0x8132,
+	0x39e: 0x8132, 0x39f: 0x8132, 0x3a0: 0x8132, 0x3a1: 0x8132, 0x3a2: 0x812d, 0x3a3: 0x812d,
+	0x3a4: 0x812d, 0x3a5: 0x812d, 0x3a6: 0x812d, 0x3a7: 0x812d, 0x3a8: 0x8132, 0x3a9: 0x8132,
+	0x3aa: 0x812d, 0x3ab: 0x8132, 0x3ac: 0x8132, 0x3ad: 0x812e, 0x3ae: 0x8131, 0x3af: 0x8132,
+	0x3b0: 0x8105, 0x3b1: 0x8106, 0x3b2: 0x8107, 0x3b3: 0x8108, 0x3b4: 0x8109, 0x3b5: 0x810a,
+	0x3b6: 0x810b, 0x3b7: 0x810c, 0x3b8: 0x810d, 0x3b9: 0x810e, 0x3ba: 0x810e, 0x3bb: 0x810f,
+	0x3bc: 0x8110, 0x3bd: 0x8111, 0x3bf: 0x8112,
+	// Block 0xf, offset 0x3c0
+	0x3c8: 0xa000, 0x3ca: 0xa000, 0x3cb: 0x8116,
+	0x3cc: 0x8117, 0x3cd: 0x8118, 0x3ce: 0x8119, 0x3cf: 0x811a, 0x3d0: 0x811b, 0x3d1: 0x811c,
+	0x3d2: 0x811d, 0x3d3: 0x9932, 0x3d4: 0x9932, 0x3d5: 0x992d, 0x3d6: 0x812d, 0x3d7: 0x8132,
+	0x3d8: 0x8132, 0x3d9: 0x8132, 0x3da: 0x8132, 0x3db: 0x8132, 0x3dc: 0x812d, 0x3dd: 0x8132,
+	0x3de: 0x8132, 0x3df: 0x812d,
+	0x3f0: 0x811e, 0x3f5: 0x1d87,
+	0x3f6: 0x2016, 0x3f7: 0x2052, 0x3f8: 0x204d,
+	// Block 0x10, offset 0x400
+	0x413: 0x812d, 0x414: 0x8132, 0x415: 0x8132, 0x416: 0x8132, 0x417: 0x8132,
+	0x418: 0x8132, 0x419: 0x8132, 0x41a: 0x8132, 0x41b: 0x8132, 0x41c: 0x8132, 0x41d: 0x8132,
+	0x41e: 0x8132, 0x41f: 0x8132, 0x420: 0x8132, 0x421: 0x8132, 0x423: 0x812d,
+	0x424: 0x8132, 0x425: 0x8132, 0x426: 0x812d, 0x427: 0x8132, 0x428: 0x8132, 0x429: 0x812d,
+	0x42a: 0x8132, 0x42b: 0x8132, 0x42c: 0x8132, 0x42d: 0x812d, 0x42e: 0x812d, 0x42f: 0x812d,
+	0x430: 0x8116, 0x431: 0x8117, 0x432: 0x8118, 0x433: 0x8132, 0x434: 0x8132, 0x435: 0x8132,
+	0x436: 0x812d, 0x437: 0x8132, 0x438: 0x8132, 0x439: 0x812d, 0x43a: 0x812d, 0x43b: 0x8132,
+	0x43c: 0x8132, 0x43d: 0x8132, 0x43e: 0x8132, 0x43f: 0x8132,
+	// Block 0x11, offset 0x440
+	0x445: 0xa000,
+	0x446: 0x2d29, 0x447: 0xa000, 0x448: 0x2d31, 0x449: 0xa000, 0x44a: 0x2d39, 0x44b: 0xa000,
+	0x44c: 0x2d41, 0x44d: 0xa000, 0x44e: 0x2d49, 0x451: 0xa000,
+	0x452: 0x2d51,
+	0x474: 0x8102, 0x475: 0x9900,
+	0x47a: 0xa000, 0x47b: 0x2d59,
+	0x47c: 0xa000, 0x47d: 0x2d61, 0x47e: 0xa000, 0x47f: 0xa000,
+	// Block 0x12, offset 0x480
+	0x480: 0x0069, 0x481: 0x006b, 0x482: 0x006f, 0x483: 0x0083, 0x484: 0x00f5, 0x485: 0x00f8,
+	0x486: 0x0413, 0x487: 0x0085, 0x488: 0x0089, 0x489: 0x008b, 0x48a: 0x0104, 0x48b: 0x0107,
+	0x48c: 0x010a, 0x48d: 0x008f, 0x48f: 0x0097, 0x490: 0x009b, 0x491: 0x00e0,
+	0x492: 0x009f, 0x493: 0x00fe, 0x494: 0x0417, 0x495: 0x041b, 0x496: 0x00a1, 0x497: 0x00a9,
+	0x498: 0x00ab, 0x499: 0x0423, 0x49a: 0x012b, 0x49b: 0x00ad, 0x49c: 0x0427, 0x49d: 0x01be,
+	0x49e: 0x01c1, 0x49f: 0x01c4, 0x4a0: 0x01fa, 0x4a1: 0x01fd, 0x4a2: 0x0093, 0x4a3: 0x00a5,
+	0x4a4: 0x00ab, 0x4a5: 0x00ad, 0x4a6: 0x01be, 0x4a7: 0x01c1, 0x4a8: 0x01eb, 0x4a9: 0x01fa,
+	0x4aa: 0x01fd,
+	0x4b8: 0x020c,
+	// Block 0x13, offset 0x4c0
+	0x4db: 0x00fb, 0x4dc: 0x0087, 0x4dd: 0x0101,
+	0x4de: 0x00d4, 0x4df: 0x010a, 0x4e0: 0x008d, 0x4e1: 0x010d, 0x4e2: 0x0110, 0x4e3: 0x0116,
+	0x4e4: 0x011c, 0x4e5: 0x011f, 0x4e6: 0x0122, 0x4e7: 0x042b, 0x4e8: 0x016a, 0x4e9: 0x0128,
+	0x4ea: 0x042f, 0x4eb: 0x016d, 0x4ec: 0x0131, 0x4ed: 0x012e, 0x4ee: 0x0134, 0x4ef: 0x0137,
+	0x4f0: 0x013a, 0x4f1: 0x013d, 0x4f2: 0x0140, 0x4f3: 0x014c, 0x4f4: 0x014f, 0x4f5: 0x00ec,
+	0x4f6: 0x0152, 0x4f7: 0x0155, 0x4f8: 0x041f, 0x4f9: 0x0158, 0x4fa: 0x015b, 0x4fb: 0x00b5,
+	0x4fc: 0x015e, 0x4fd: 0x0161, 0x4fe: 0x0164, 0x4ff: 0x01d0,
+	// Block 0x14, offset 0x500
+	0x500: 0x8132, 0x501: 0x8132, 0x502: 0x812d, 0x503: 0x8132, 0x504: 0x8132, 0x505: 0x8132,
+	0x506: 0x8132, 0x507: 0x8132, 0x508: 0x8132, 0x509: 0x8132, 0x50a: 0x812d, 0x50b: 0x8132,
+	0x50c: 0x8132, 0x50d: 0x8135, 0x50e: 0x812a, 0x50f: 0x812d, 0x510: 0x8129, 0x511: 0x8132,
+	0x512: 0x8132, 0x513: 0x8132, 0x514: 0x8132, 0x515: 0x8132, 0x516: 0x8132, 0x517: 0x8132,
+	0x518: 0x8132, 0x519: 0x8132, 0x51a: 0x8132, 0x51b: 0x8132, 0x51c: 0x8132, 0x51d: 0x8132,
+	0x51e: 0x8132, 0x51f: 0x8132, 0x520: 0x8132, 0x521: 0x8132, 0x522: 0x8132, 0x523: 0x8132,
+	0x524: 0x8132, 0x525: 0x8132, 0x526: 0x8132, 0x527: 0x8132, 0x528: 0x8132, 0x529: 0x8132,
+	0x52a: 0x8132, 0x52b: 0x8132, 0x52c: 0x8132, 0x52d: 0x8132, 0x52e: 0x8132, 0x52f: 0x8132,
+	0x530: 0x8132, 0x531: 0x8132, 0x532: 0x8132, 0x533: 0x8132, 0x534: 0x8132, 0x535: 0x8132,
+	0x536: 0x8133, 0x537: 0x8131, 0x538: 0x8131, 0x539: 0x812d, 0x53b: 0x8132,
+	0x53c: 0x8134, 0x53d: 0x812d, 0x53e: 0x8132, 0x53f: 0x812d,
+	// Block 0x15, offset 0x540
+	0x540: 0x2f9a, 0x541: 0x32a6, 0x542: 0x2fa4, 0x543: 0x32b0, 0x544: 0x2fa9, 0x545: 0x32b5,
+	0x546: 0x2fae, 0x547: 0x32ba, 0x548: 0x38cf, 0x549: 0x3a5e, 0x54a: 0x2fc7, 0x54b: 0x32d3,
+	0x54c: 0x2fd1, 0x54d: 0x32dd, 0x54e: 0x2fe0, 0x54f: 0x32ec, 0x550: 0x2fd6, 0x551: 0x32e2,
+	0x552: 0x2fdb, 0x553: 0x32e7, 0x554: 0x38f2, 0x555: 0x3a81, 0x556: 0x38f9, 0x557: 0x3a88,
+	0x558: 0x301c, 0x559: 0x3328, 0x55a: 0x3021, 0x55b: 0x332d, 0x55c: 0x3907, 0x55d: 0x3a96,
+	0x55e: 0x3026, 0x55f: 0x3332, 0x560: 0x3035, 0x561: 0x3341, 0x562: 0x3053, 0x563: 0x335f,
+	0x564: 0x3062, 0x565: 0x336e, 0x566: 0x3058, 0x567: 0x3364, 0x568: 0x3067, 0x569: 0x3373,
+	0x56a: 0x306c, 0x56b: 0x3378, 0x56c: 0x30b2, 0x56d: 0x33be, 0x56e: 0x390e, 0x56f: 0x3a9d,
+	0x570: 0x30bc, 0x571: 0x33cd, 0x572: 0x30c6, 0x573: 0x33d7, 0x574: 0x30d0, 0x575: 0x33e1,
+	0x576: 0x46c7, 0x577: 0x4758, 0x578: 0x3915, 0x579: 0x3aa4, 0x57a: 0x30e9, 0x57b: 0x33fa,
+	0x57c: 0x30e4, 0x57d: 0x33f5, 0x57e: 0x30ee, 0x57f: 0x33ff,
+	// Block 0x16, offset 0x580
+	0x580: 0x30f3, 0x581: 0x3404, 0x582: 0x30f8, 0x583: 0x3409, 0x584: 0x310c, 0x585: 0x341d,
+	0x586: 0x3116, 0x587: 0x3427, 0x588: 0x3125, 0x589: 0x3436, 0x58a: 0x3120, 0x58b: 0x3431,
+	0x58c: 0x3938, 0x58d: 0x3ac7, 0x58e: 0x3946, 0x58f: 0x3ad5, 0x590: 0x394d, 0x591: 0x3adc,
+	0x592: 0x3954, 0x593: 0x3ae3, 0x594: 0x3152, 0x595: 0x3463, 0x596: 0x3157, 0x597: 0x3468,
+	0x598: 0x3161, 0x599: 0x3472, 0x59a: 0x46f4, 0x59b: 0x4785, 0x59c: 0x399a, 0x59d: 0x3b29,
+	0x59e: 0x317a, 0x59f: 0x348b, 0x5a0: 0x3184, 0x5a1: 0x3495, 0x5a2: 0x4703, 0x5a3: 0x4794,
+	0x5a4: 0x39a1, 0x5a5: 0x3b30, 0x5a6: 0x39a8, 0x5a7: 0x3b37, 0x5a8: 0x39af, 0x5a9: 0x3b3e,
+	0x5aa: 0x3193, 0x5ab: 0x34a4, 0x5ac: 0x319d, 0x5ad: 0x34b3, 0x5ae: 0x31b1, 0x5af: 0x34c7,
+	0x5b0: 0x31ac, 0x5b1: 0x34c2, 0x5b2: 0x31ed, 0x5b3: 0x3503, 0x5b4: 0x31fc, 0x5b5: 0x3512,
+	0x5b6: 0x31f7, 0x5b7: 0x350d, 0x5b8: 0x39b6, 0x5b9: 0x3b45, 0x5ba: 0x39bd, 0x5bb: 0x3b4c,
+	0x5bc: 0x3201, 0x5bd: 0x3517, 0x5be: 0x3206, 0x5bf: 0x351c,
+	// Block 0x17, offset 0x5c0
+	0x5c0: 0x320b, 0x5c1: 0x3521, 0x5c2: 0x3210, 0x5c3: 0x3526, 0x5c4: 0x321f, 0x5c5: 0x3535,
+	0x5c6: 0x321a, 0x5c7: 0x3530, 0x5c8: 0x3224, 0x5c9: 0x353f, 0x5ca: 0x3229, 0x5cb: 0x3544,
+	0x5cc: 0x322e, 0x5cd: 0x3549, 0x5ce: 0x324c, 0x5cf: 0x3567, 0x5d0: 0x3265, 0x5d1: 0x3585,
+	0x5d2: 0x3274, 0x5d3: 0x3594, 0x5d4: 0x3279, 0x5d5: 0x3599, 0x5d6: 0x337d, 0x5d7: 0x34a9,
+	0x5d8: 0x353a, 0x5d9: 0x3576, 0x5da: 0x1be3, 0x5db: 0x42da,
+	0x5e0: 0x46a4, 0x5e1: 0x4735, 0x5e2: 0x2f86, 0x5e3: 0x3292,
+	0x5e4: 0x387b, 0x5e5: 0x3a0a, 0x5e6: 0x3874, 0x5e7: 0x3a03, 0x5e8: 0x3889, 0x5e9: 0x3a18,
+	0x5ea: 0x3882, 0x5eb: 0x3a11, 0x5ec: 0x38c1, 0x5ed: 0x3a50, 0x5ee: 0x3897, 0x5ef: 0x3a26,
+	0x5f0: 0x3890, 0x5f1: 0x3a1f, 0x5f2: 0x38a5, 0x5f3: 0x3a34, 0x5f4: 0x389e, 0x5f5: 0x3a2d,
+	0x5f6: 0x38c8, 0x5f7: 0x3a57, 0x5f8: 0x46b8, 0x5f9: 0x4749, 0x5fa: 0x3003, 0x5fb: 0x330f,
+	0x5fc: 0x2fef, 0x5fd: 0x32fb, 0x5fe: 0x38dd, 0x5ff: 0x3a6c,
+	// Block 0x18, offset 0x600
+	0x600: 0x38d6, 0x601: 0x3a65, 0x602: 0x38eb, 0x603: 0x3a7a, 0x604: 0x38e4, 0x605: 0x3a73,
+	0x606: 0x3900, 0x607: 0x3a8f, 0x608: 0x3094, 0x609: 0x33a0, 0x60a: 0x30a8, 0x60b: 0x33b4,
+	0x60c: 0x46ea, 0x60d: 0x477b, 0x60e: 0x3139, 0x60f: 0x344a, 0x610: 0x3923, 0x611: 0x3ab2,
+	0x612: 0x391c, 0x613: 0x3aab, 0x614: 0x3931, 0x615: 0x3ac0, 0x616: 0x392a, 0x617: 0x3ab9,
+	0x618: 0x398c, 0x619: 0x3b1b, 0x61a: 0x3970, 0x61b: 0x3aff, 0x61c: 0x3969, 0x61d: 0x3af8,
+	0x61e: 0x397e, 0x61f: 0x3b0d, 0x620: 0x3977, 0x621: 0x3b06, 0x622: 0x3985, 0x623: 0x3b14,
+	0x624: 0x31e8, 0x625: 0x34fe, 0x626: 0x31ca, 0x627: 0x34e0, 0x628: 0x39e7, 0x629: 0x3b76,
+	0x62a: 0x39e0, 0x62b: 0x3b6f, 0x62c: 0x39f5, 0x62d: 0x3b84, 0x62e: 0x39ee, 0x62f: 0x3b7d,
+	0x630: 0x39fc, 0x631: 0x3b8b, 0x632: 0x3233, 0x633: 0x354e, 0x634: 0x325b, 0x635: 0x357b,
+	0x636: 0x3256, 0x637: 0x3571, 0x638: 0x3242, 0x639: 0x355d,
+	// Block 0x19, offset 0x640
+	0x640: 0x4807, 0x641: 0x480d, 0x642: 0x4921, 0x643: 0x4939, 0x644: 0x4929, 0x645: 0x4941,
+	0x646: 0x4931, 0x647: 0x4949, 0x648: 0x47ad, 0x649: 0x47b3, 0x64a: 0x4891, 0x64b: 0x48a9,
+	0x64c: 0x4899, 0x64d: 0x48b1, 0x64e: 0x48a1, 0x64f: 0x48b9, 0x650: 0x4819, 0x651: 0x481f,
+	0x652: 0x3dbb, 0x653: 0x3dcb, 0x654: 0x3dc3, 0x655: 0x3dd3,
+	0x658: 0x47b9, 0x659: 0x47bf, 0x65a: 0x3ceb, 0x65b: 0x3cfb, 0x65c: 0x3cf3, 0x65d: 0x3d03,
+	0x660: 0x4831, 0x661: 0x4837, 0x662: 0x4951, 0x663: 0x4969,
+	0x664: 0x4959, 0x665: 0x4971, 0x666: 0x4961, 0x667: 0x4979, 0x668: 0x47c5, 0x669: 0x47cb,
+	0x66a: 0x48c1, 0x66b: 0x48d9, 0x66c: 0x48c9, 0x66d: 0x48e1, 0x66e: 0x48d1, 0x66f: 0x48e9,
+	0x670: 0x4849, 0x671: 0x484f, 0x672: 0x3e1b, 0x673: 0x3e33, 0x674: 0x3e23, 0x675: 0x3e3b,
+	0x676: 0x3e2b, 0x677: 0x3e43, 0x678: 0x47d1, 0x679: 0x47d7, 0x67a: 0x3d1b, 0x67b: 0x3d33,
+	0x67c: 0x3d23, 0x67d: 0x3d3b, 0x67e: 0x3d2b, 0x67f: 0x3d43,
+	// Block 0x1a, offset 0x680
+	0x680: 0x4855, 0x681: 0x485b, 0x682: 0x3e4b, 0x683: 0x3e5b, 0x684: 0x3e53, 0x685: 0x3e63,
+	0x688: 0x47dd, 0x689: 0x47e3, 0x68a: 0x3d4b, 0x68b: 0x3d5b,
+	0x68c: 0x3d53, 0x68d: 0x3d63, 0x690: 0x4867, 0x691: 0x486d,
+	0x692: 0x3e83, 0x693: 0x3e9b, 0x694: 0x3e8b, 0x695: 0x3ea3, 0x696: 0x3e93, 0x697: 0x3eab,
+	0x699: 0x47e9, 0x69b: 0x3d6b, 0x69d: 0x3d73,
+	0x69f: 0x3d7b, 0x6a0: 0x487f, 0x6a1: 0x4885, 0x6a2: 0x4981, 0x6a3: 0x4999,
+	0x6a4: 0x4989, 0x6a5: 0x49a1, 0x6a6: 0x4991, 0x6a7: 0x49a9, 0x6a8: 0x47ef, 0x6a9: 0x47f5,
+	0x6aa: 0x48f1, 0x6ab: 0x4909, 0x6ac: 0x48f9, 0x6ad: 0x4911, 0x6ae: 0x4901, 0x6af: 0x4919,
+	0x6b0: 0x47fb, 0x6b1: 0x4321, 0x6b2: 0x3694, 0x6b3: 0x4327, 0x6b4: 0x4825, 0x6b5: 0x432d,
+	0x6b6: 0x36a6, 0x6b7: 0x4333, 0x6b8: 0x36c4, 0x6b9: 0x4339, 0x6ba: 0x36dc, 0x6bb: 0x433f,
+	0x6bc: 0x4873, 0x6bd: 0x4345,
+	// Block 0x1b, offset 0x6c0
+	0x6c0: 0x3da3, 0x6c1: 0x3dab, 0x6c2: 0x4187, 0x6c3: 0x41a5, 0x6c4: 0x4191, 0x6c5: 0x41af,
+	0x6c6: 0x419b, 0x6c7: 0x41b9, 0x6c8: 0x3cdb, 0x6c9: 0x3ce3, 0x6ca: 0x40d3, 0x6cb: 0x40f1,
+	0x6cc: 0x40dd, 0x6cd: 0x40fb, 0x6ce: 0x40e7, 0x6cf: 0x4105, 0x6d0: 0x3deb, 0x6d1: 0x3df3,
+	0x6d2: 0x41c3, 0x6d3: 0x41e1, 0x6d4: 0x41cd, 0x6d5: 0x41eb, 0x6d6: 0x41d7, 0x6d7: 0x41f5,
+	0x6d8: 0x3d0b, 0x6d9: 0x3d13, 0x6da: 0x410f, 0x6db: 0x412d, 0x6dc: 0x4119, 0x6dd: 0x4137,
+	0x6de: 0x4123, 0x6df: 0x4141, 0x6e0: 0x3ec3, 0x6e1: 0x3ecb, 0x6e2: 0x41ff, 0x6e3: 0x421d,
+	0x6e4: 0x4209, 0x6e5: 0x4227, 0x6e6: 0x4213, 0x6e7: 0x4231, 0x6e8: 0x3d83, 0x6e9: 0x3d8b,
+	0x6ea: 0x414b, 0x6eb: 0x4169, 0x6ec: 0x4155, 0x6ed: 0x4173, 0x6ee: 0x415f, 0x6ef: 0x417d,
+	0x6f0: 0x3688, 0x6f1: 0x3682, 0x6f2: 0x3d93, 0x6f3: 0x368e, 0x6f4: 0x3d9b,
+	0x6f6: 0x4813, 0x6f7: 0x3db3, 0x6f8: 0x35f8, 0x6f9: 0x35f2, 0x6fa: 0x35e6, 0x6fb: 0x42f1,
+	0x6fc: 0x35fe, 0x6fd: 0x428a, 0x6fe: 0x01d3, 0x6ff: 0x428a,
+	// Block 0x1c, offset 0x700
+	0x700: 0x42a3, 0x701: 0x4485, 0x702: 0x3ddb, 0x703: 0x36a0, 0x704: 0x3de3,
+	0x706: 0x483d, 0x707: 0x3dfb, 0x708: 0x3604, 0x709: 0x42f7, 0x70a: 0x3610, 0x70b: 0x42fd,
+	0x70c: 0x361c, 0x70d: 0x448c, 0x70e: 0x4493, 0x70f: 0x449a, 0x710: 0x36b8, 0x711: 0x36b2,
+	0x712: 0x3e03, 0x713: 0x44e7, 0x716: 0x36be, 0x717: 0x3e13,
+	0x718: 0x3634, 0x719: 0x362e, 0x71a: 0x3622, 0x71b: 0x4303, 0x71d: 0x44a1,
+	0x71e: 0x44a8, 0x71f: 0x44af, 0x720: 0x36ee, 0x721: 0x36e8, 0x722: 0x3e6b, 0x723: 0x44ef,
+	0x724: 0x36d0, 0x725: 0x36d6, 0x726: 0x36f4, 0x727: 0x3e7b, 0x728: 0x3664, 0x729: 0x365e,
+	0x72a: 0x3652, 0x72b: 0x430f, 0x72c: 0x364c, 0x72d: 0x4477, 0x72e: 0x447e, 0x72f: 0x0081,
+	0x732: 0x3eb3, 0x733: 0x36fa, 0x734: 0x3ebb,
+	0x736: 0x488b, 0x737: 0x3ed3, 0x738: 0x3640, 0x739: 0x4309, 0x73a: 0x3670, 0x73b: 0x431b,
+	0x73c: 0x367c, 0x73d: 0x425d, 0x73e: 0x428f,
+	// Block 0x1d, offset 0x740
+	0x740: 0x1bdb, 0x741: 0x1bdf, 0x742: 0x0047, 0x743: 0x1c57, 0x745: 0x1beb,
+	0x746: 0x1bef, 0x747: 0x00e9, 0x749: 0x1c5b, 0x74a: 0x008f, 0x74b: 0x0051,
+	0x74c: 0x0051, 0x74d: 0x0051, 0x74e: 0x0091, 0x74f: 0x00da, 0x750: 0x0053, 0x751: 0x0053,
+	0x752: 0x0059, 0x753: 0x0099, 0x755: 0x005d, 0x756: 0x1990,
+	0x759: 0x0061, 0x75a: 0x0063, 0x75b: 0x0065, 0x75c: 0x0065, 0x75d: 0x0065,
+	0x760: 0x19a2, 0x761: 0x1bcb, 0x762: 0x19ab,
+	0x764: 0x0075, 0x766: 0x01b8, 0x768: 0x0075,
+	0x76a: 0x0057, 0x76b: 0x42d5, 0x76c: 0x0045, 0x76d: 0x0047, 0x76f: 0x008b,
+	0x770: 0x004b, 0x771: 0x004d, 0x773: 0x005b, 0x774: 0x009f, 0x775: 0x0215,
+	0x776: 0x0218, 0x777: 0x021b, 0x778: 0x021e, 0x779: 0x0093, 0x77b: 0x1b9b,
+	0x77c: 0x01e8, 0x77d: 0x01c1, 0x77e: 0x0179, 0x77f: 0x01a0,
+	// Block 0x1e, offset 0x780
+	0x780: 0x0463, 0x785: 0x0049,
+	0x786: 0x0089, 0x787: 0x008b, 0x788: 0x0093, 0x789: 0x0095,
+	0x790: 0x2231, 0x791: 0x223d,
+	0x792: 0x22f1, 0x793: 0x2219, 0x794: 0x229d, 0x795: 0x2225, 0x796: 0x22a3, 0x797: 0x22bb,
+	0x798: 0x22c7, 0x799: 0x222b, 0x79a: 0x22cd, 0x79b: 0x2237, 0x79c: 0x22c1, 0x79d: 0x22d3,
+	0x79e: 0x22d9, 0x79f: 0x1cbf, 0x7a0: 0x0053, 0x7a1: 0x195a, 0x7a2: 0x1ba7, 0x7a3: 0x1963,
+	0x7a4: 0x006d, 0x7a5: 0x19ae, 0x7a6: 0x1bd3, 0x7a7: 0x1d4b, 0x7a8: 0x1966, 0x7a9: 0x0071,
+	0x7aa: 0x19ba, 0x7ab: 0x1bd7, 0x7ac: 0x0059, 0x7ad: 0x0047, 0x7ae: 0x0049, 0x7af: 0x005b,
+	0x7b0: 0x0093, 0x7b1: 0x19e7, 0x7b2: 0x1c1b, 0x7b3: 0x19f0, 0x7b4: 0x00ad, 0x7b5: 0x1a65,
+	0x7b6: 0x1c4f, 0x7b7: 0x1d5f, 0x7b8: 0x19f3, 0x7b9: 0x00b1, 0x7ba: 0x1a68, 0x7bb: 0x1c53,
+	0x7bc: 0x0099, 0x7bd: 0x0087, 0x7be: 0x0089, 0x7bf: 0x009b,
+	// Block 0x1f, offset 0x7c0
+	0x7c1: 0x3c09, 0x7c3: 0xa000, 0x7c4: 0x3c10, 0x7c5: 0xa000,
+	0x7c7: 0x3c17, 0x7c8: 0xa000, 0x7c9: 0x3c1e,
+	0x7cd: 0xa000,
+	0x7e0: 0x2f68, 0x7e1: 0xa000, 0x7e2: 0x3c2c,
+	0x7e4: 0xa000, 0x7e5: 0xa000,
+	0x7ed: 0x3c25, 0x7ee: 0x2f63, 0x7ef: 0x2f6d,
+	0x7f0: 0x3c33, 0x7f1: 0x3c3a, 0x7f2: 0xa000, 0x7f3: 0xa000, 0x7f4: 0x3c41, 0x7f5: 0x3c48,
+	0x7f6: 0xa000, 0x7f7: 0xa000, 0x7f8: 0x3c4f, 0x7f9: 0x3c56, 0x7fa: 0xa000, 0x7fb: 0xa000,
+	0x7fc: 0xa000, 0x7fd: 0xa000,
+	// Block 0x20, offset 0x800
+	0x800: 0x3c5d, 0x801: 0x3c64, 0x802: 0xa000, 0x803: 0xa000, 0x804: 0x3c79, 0x805: 0x3c80,
+	0x806: 0xa000, 0x807: 0xa000, 0x808: 0x3c87, 0x809: 0x3c8e,
+	0x811: 0xa000,
+	0x812: 0xa000,
+	0x822: 0xa000,
+	0x828: 0xa000, 0x829: 0xa000,
+	0x82b: 0xa000, 0x82c: 0x3ca3, 0x82d: 0x3caa, 0x82e: 0x3cb1, 0x82f: 0x3cb8,
+	0x832: 0xa000, 0x833: 0xa000, 0x834: 0xa000, 0x835: 0xa000,
+	// Block 0x21, offset 0x840
+	0x860: 0x0023, 0x861: 0x0025, 0x862: 0x0027, 0x863: 0x0029,
+	0x864: 0x002b, 0x865: 0x002d, 0x866: 0x002f, 0x867: 0x0031, 0x868: 0x0033, 0x869: 0x1882,
+	0x86a: 0x1885, 0x86b: 0x1888, 0x86c: 0x188b, 0x86d: 0x188e, 0x86e: 0x1891, 0x86f: 0x1894,
+	0x870: 0x1897, 0x871: 0x189a, 0x872: 0x189d, 0x873: 0x18a6, 0x874: 0x1a6b, 0x875: 0x1a6f,
+	0x876: 0x1a73, 0x877: 0x1a77, 0x878: 0x1a7b, 0x879: 0x1a7f, 0x87a: 0x1a83, 0x87b: 0x1a87,
+	0x87c: 0x1a8b, 0x87d: 0x1c83, 0x87e: 0x1c88, 0x87f: 0x1c8d,
+	// Block 0x22, offset 0x880
+	0x880: 0x1c92, 0x881: 0x1c97, 0x882: 0x1c9c, 0x883: 0x1ca1, 0x884: 0x1ca6, 0x885: 0x1cab,
+	0x886: 0x1cb0, 0x887: 0x1cb5, 0x888: 0x187f, 0x889: 0x18a3, 0x88a: 0x18c7, 0x88b: 0x18eb,
+	0x88c: 0x190f, 0x88d: 0x1918, 0x88e: 0x191e, 0x88f: 0x1924, 0x890: 0x192a, 0x891: 0x1b63,
+	0x892: 0x1b67, 0x893: 0x1b6b, 0x894: 0x1b6f, 0x895: 0x1b73, 0x896: 0x1b77, 0x897: 0x1b7b,
+	0x898: 0x1b7f, 0x899: 0x1b83, 0x89a: 0x1b87, 0x89b: 0x1b8b, 0x89c: 0x1af7, 0x89d: 0x1afb,
+	0x89e: 0x1aff, 0x89f: 0x1b03, 0x8a0: 0x1b07, 0x8a1: 0x1b0b, 0x8a2: 0x1b0f, 0x8a3: 0x1b13,
+	0x8a4: 0x1b17, 0x8a5: 0x1b1b, 0x8a6: 0x1b1f, 0x8a7: 0x1b23, 0x8a8: 0x1b27, 0x8a9: 0x1b2b,
+	0x8aa: 0x1b2f, 0x8ab: 0x1b33, 0x8ac: 0x1b37, 0x8ad: 0x1b3b, 0x8ae: 0x1b3f, 0x8af: 0x1b43,
+	0x8b0: 0x1b47, 0x8b1: 0x1b4b, 0x8b2: 0x1b4f, 0x8b3: 0x1b53, 0x8b4: 0x1b57, 0x8b5: 0x1b5b,
+	0x8b6: 0x0043, 0x8b7: 0x0045, 0x8b8: 0x0047, 0x8b9: 0x0049, 0x8ba: 0x004b, 0x8bb: 0x004d,
+	0x8bc: 0x004f, 0x8bd: 0x0051, 0x8be: 0x0053, 0x8bf: 0x0055,
+	// Block 0x23, offset 0x8c0
+	0x8c0: 0x06bf, 0x8c1: 0x06e3, 0x8c2: 0x06ef, 0x8c3: 0x06ff, 0x8c4: 0x0707, 0x8c5: 0x0713,
+	0x8c6: 0x071b, 0x8c7: 0x0723, 0x8c8: 0x072f, 0x8c9: 0x0783, 0x8ca: 0x079b, 0x8cb: 0x07ab,
+	0x8cc: 0x07bb, 0x8cd: 0x07cb, 0x8ce: 0x07db, 0x8cf: 0x07fb, 0x8d0: 0x07ff, 0x8d1: 0x0803,
+	0x8d2: 0x0837, 0x8d3: 0x085f, 0x8d4: 0x086f, 0x8d5: 0x0877, 0x8d6: 0x087b, 0x8d7: 0x0887,
+	0x8d8: 0x08a3, 0x8d9: 0x08a7, 0x8da: 0x08bf, 0x8db: 0x08c3, 0x8dc: 0x08cb, 0x8dd: 0x08db,
+	0x8de: 0x0977, 0x8df: 0x098b, 0x8e0: 0x09cb, 0x8e1: 0x09df, 0x8e2: 0x09e7, 0x8e3: 0x09eb,
+	0x8e4: 0x09fb, 0x8e5: 0x0a17, 0x8e6: 0x0a43, 0x8e7: 0x0a4f, 0x8e8: 0x0a6f, 0x8e9: 0x0a7b,
+	0x8ea: 0x0a7f, 0x8eb: 0x0a83, 0x8ec: 0x0a9b, 0x8ed: 0x0a9f, 0x8ee: 0x0acb, 0x8ef: 0x0ad7,
+	0x8f0: 0x0adf, 0x8f1: 0x0ae7, 0x8f2: 0x0af7, 0x8f3: 0x0aff, 0x8f4: 0x0b07, 0x8f5: 0x0b33,
+	0x8f6: 0x0b37, 0x8f7: 0x0b3f, 0x8f8: 0x0b43, 0x8f9: 0x0b4b, 0x8fa: 0x0b53, 0x8fb: 0x0b63,
+	0x8fc: 0x0b7f, 0x8fd: 0x0bf7, 0x8fe: 0x0c0b, 0x8ff: 0x0c0f,
+	// Block 0x24, offset 0x900
+	0x900: 0x0c8f, 0x901: 0x0c93, 0x902: 0x0ca7, 0x903: 0x0cab, 0x904: 0x0cb3, 0x905: 0x0cbb,
+	0x906: 0x0cc3, 0x907: 0x0ccf, 0x908: 0x0cf7, 0x909: 0x0d07, 0x90a: 0x0d1b, 0x90b: 0x0d8b,
+	0x90c: 0x0d97, 0x90d: 0x0da7, 0x90e: 0x0db3, 0x90f: 0x0dbf, 0x910: 0x0dc7, 0x911: 0x0dcb,
+	0x912: 0x0dcf, 0x913: 0x0dd3, 0x914: 0x0dd7, 0x915: 0x0e8f, 0x916: 0x0ed7, 0x917: 0x0ee3,
+	0x918: 0x0ee7, 0x919: 0x0eeb, 0x91a: 0x0eef, 0x91b: 0x0ef7, 0x91c: 0x0efb, 0x91d: 0x0f0f,
+	0x91e: 0x0f2b, 0x91f: 0x0f33, 0x920: 0x0f73, 0x921: 0x0f77, 0x922: 0x0f7f, 0x923: 0x0f83,
+	0x924: 0x0f8b, 0x925: 0x0f8f, 0x926: 0x0fb3, 0x927: 0x0fb7, 0x928: 0x0fd3, 0x929: 0x0fd7,
+	0x92a: 0x0fdb, 0x92b: 0x0fdf, 0x92c: 0x0ff3, 0x92d: 0x1017, 0x92e: 0x101b, 0x92f: 0x101f,
+	0x930: 0x1043, 0x931: 0x1083, 0x932: 0x1087, 0x933: 0x10a7, 0x934: 0x10b7, 0x935: 0x10bf,
+	0x936: 0x10df, 0x937: 0x1103, 0x938: 0x1147, 0x939: 0x114f, 0x93a: 0x1163, 0x93b: 0x116f,
+	0x93c: 0x1177, 0x93d: 0x117f, 0x93e: 0x1183, 0x93f: 0x1187,
+	// Block 0x25, offset 0x940
+	0x940: 0x119f, 0x941: 0x11a3, 0x942: 0x11bf, 0x943: 0x11c7, 0x944: 0x11cf, 0x945: 0x11d3,
+	0x946: 0x11df, 0x947: 0x11e7, 0x948: 0x11eb, 0x949: 0x11ef, 0x94a: 0x11f7, 0x94b: 0x11fb,
+	0x94c: 0x129b, 0x94d: 0x12af, 0x94e: 0x12e3, 0x94f: 0x12e7, 0x950: 0x12ef, 0x951: 0x131b,
+	0x952: 0x1323, 0x953: 0x132b, 0x954: 0x1333, 0x955: 0x136f, 0x956: 0x1373, 0x957: 0x137b,
+	0x958: 0x137f, 0x959: 0x1383, 0x95a: 0x13af, 0x95b: 0x13b3, 0x95c: 0x13bb, 0x95d: 0x13cf,
+	0x95e: 0x13d3, 0x95f: 0x13ef, 0x960: 0x13f7, 0x961: 0x13fb, 0x962: 0x141f, 0x963: 0x143f,
+	0x964: 0x1453, 0x965: 0x1457, 0x966: 0x145f, 0x967: 0x148b, 0x968: 0x148f, 0x969: 0x149f,
+	0x96a: 0x14c3, 0x96b: 0x14cf, 0x96c: 0x14df, 0x96d: 0x14f7, 0x96e: 0x14ff, 0x96f: 0x1503,
+	0x970: 0x1507, 0x971: 0x150b, 0x972: 0x1517, 0x973: 0x151b, 0x974: 0x1523, 0x975: 0x153f,
+	0x976: 0x1543, 0x977: 0x1547, 0x978: 0x155f, 0x979: 0x1563, 0x97a: 0x156b, 0x97b: 0x157f,
+	0x97c: 0x1583, 0x97d: 0x1587, 0x97e: 0x158f, 0x97f: 0x1593,
+	// Block 0x26, offset 0x980
+	0x986: 0xa000, 0x98b: 0xa000,
+	0x98c: 0x3f0b, 0x98d: 0xa000, 0x98e: 0x3f13, 0x98f: 0xa000, 0x990: 0x3f1b, 0x991: 0xa000,
+	0x992: 0x3f23, 0x993: 0xa000, 0x994: 0x3f2b, 0x995: 0xa000, 0x996: 0x3f33, 0x997: 0xa000,
+	0x998: 0x3f3b, 0x999: 0xa000, 0x99a: 0x3f43, 0x99b: 0xa000, 0x99c: 0x3f4b, 0x99d: 0xa000,
+	0x99e: 0x3f53, 0x99f: 0xa000, 0x9a0: 0x3f5b, 0x9a1: 0xa000, 0x9a2: 0x3f63,
+	0x9a4: 0xa000, 0x9a5: 0x3f6b, 0x9a6: 0xa000, 0x9a7: 0x3f73, 0x9a8: 0xa000, 0x9a9: 0x3f7b,
+	0x9af: 0xa000,
+	0x9b0: 0x3f83, 0x9b1: 0x3f8b, 0x9b2: 0xa000, 0x9b3: 0x3f93, 0x9b4: 0x3f9b, 0x9b5: 0xa000,
+	0x9b6: 0x3fa3, 0x9b7: 0x3fab, 0x9b8: 0xa000, 0x9b9: 0x3fb3, 0x9ba: 0x3fbb, 0x9bb: 0xa000,
+	0x9bc: 0x3fc3, 0x9bd: 0x3fcb,
+	// Block 0x27, offset 0x9c0
+	0x9d4: 0x3f03,
+	0x9d9: 0x9903, 0x9da: 0x9903, 0x9db: 0x42df, 0x9dc: 0x42e5, 0x9dd: 0xa000,
+	0x9de: 0x3fd3, 0x9df: 0x26b7,
+	0x9e6: 0xa000,
+	0x9eb: 0xa000, 0x9ec: 0x3fe3, 0x9ed: 0xa000, 0x9ee: 0x3feb, 0x9ef: 0xa000,
+	0x9f0: 0x3ff3, 0x9f1: 0xa000, 0x9f2: 0x3ffb, 0x9f3: 0xa000, 0x9f4: 0x4003, 0x9f5: 0xa000,
+	0x9f6: 0x400b, 0x9f7: 0xa000, 0x9f8: 0x4013, 0x9f9: 0xa000, 0x9fa: 0x401b, 0x9fb: 0xa000,
+	0x9fc: 0x4023, 0x9fd: 0xa000, 0x9fe: 0x402b, 0x9ff: 0xa000,
+	// Block 0x28, offset 0xa00
+	0xa00: 0x4033, 0xa01: 0xa000, 0xa02: 0x403b, 0xa04: 0xa000, 0xa05: 0x4043,
+	0xa06: 0xa000, 0xa07: 0x404b, 0xa08: 0xa000, 0xa09: 0x4053,
+	0xa0f: 0xa000, 0xa10: 0x405b, 0xa11: 0x4063,
+	0xa12: 0xa000, 0xa13: 0x406b, 0xa14: 0x4073, 0xa15: 0xa000, 0xa16: 0x407b, 0xa17: 0x4083,
+	0xa18: 0xa000, 0xa19: 0x408b, 0xa1a: 0x4093, 0xa1b: 0xa000, 0xa1c: 0x409b, 0xa1d: 0x40a3,
+	0xa2f: 0xa000,
+	0xa30: 0xa000, 0xa31: 0xa000, 0xa32: 0xa000, 0xa34: 0x3fdb,
+	0xa37: 0x40ab, 0xa38: 0x40b3, 0xa39: 0x40bb, 0xa3a: 0x40c3,
+	0xa3d: 0xa000, 0xa3e: 0x40cb, 0xa3f: 0x26cc,
+	// Block 0x29, offset 0xa40
+	0xa40: 0x0367, 0xa41: 0x032b, 0xa42: 0x032f, 0xa43: 0x0333, 0xa44: 0x037b, 0xa45: 0x0337,
+	0xa46: 0x033b, 0xa47: 0x033f, 0xa48: 0x0343, 0xa49: 0x0347, 0xa4a: 0x034b, 0xa4b: 0x034f,
+	0xa4c: 0x0353, 0xa4d: 0x0357, 0xa4e: 0x035b, 0xa4f: 0x49c0, 0xa50: 0x49c6, 0xa51: 0x49cc,
+	0xa52: 0x49d2, 0xa53: 0x49d8, 0xa54: 0x49de, 0xa55: 0x49e4, 0xa56: 0x49ea, 0xa57: 0x49f0,
+	0xa58: 0x49f6, 0xa59: 0x49fc, 0xa5a: 0x4a02, 0xa5b: 0x4a08, 0xa5c: 0x4a0e, 0xa5d: 0x4a14,
+	0xa5e: 0x4a1a, 0xa5f: 0x4a20, 0xa60: 0x4a26, 0xa61: 0x4a2c, 0xa62: 0x4a32, 0xa63: 0x4a38,
+	0xa64: 0x03c3, 0xa65: 0x035f, 0xa66: 0x0363, 0xa67: 0x03e7, 0xa68: 0x03eb, 0xa69: 0x03ef,
+	0xa6a: 0x03f3, 0xa6b: 0x03f7, 0xa6c: 0x03fb, 0xa6d: 0x03ff, 0xa6e: 0x036b, 0xa6f: 0x0403,
+	0xa70: 0x0407, 0xa71: 0x036f, 0xa72: 0x0373, 0xa73: 0x0377, 0xa74: 0x037f, 0xa75: 0x0383,
+	0xa76: 0x0387, 0xa77: 0x038b, 0xa78: 0x038f, 0xa79: 0x0393, 0xa7a: 0x0397, 0xa7b: 0x039b,
+	0xa7c: 0x039f, 0xa7d: 0x03a3, 0xa7e: 0x03a7, 0xa7f: 0x03ab,
+	// Block 0x2a, offset 0xa80
+	0xa80: 0x03af, 0xa81: 0x03b3, 0xa82: 0x040b, 0xa83: 0x040f, 0xa84: 0x03b7, 0xa85: 0x03bb,
+	0xa86: 0x03bf, 0xa87: 0x03c7, 0xa88: 0x03cb, 0xa89: 0x03cf, 0xa8a: 0x03d3, 0xa8b: 0x03d7,
+	0xa8c: 0x03db, 0xa8d: 0x03df, 0xa8e: 0x03e3,
+	0xa92: 0x06bf, 0xa93: 0x071b, 0xa94: 0x06cb, 0xa95: 0x097b, 0xa96: 0x06cf, 0xa97: 0x06e7,
+	0xa98: 0x06d3, 0xa99: 0x0f93, 0xa9a: 0x0707, 0xa9b: 0x06db, 0xa9c: 0x06c3, 0xa9d: 0x09ff,
+	0xa9e: 0x098f, 0xa9f: 0x072f,
+	// Block 0x2b, offset 0xac0
+	0xac0: 0x2057, 0xac1: 0x205d, 0xac2: 0x2063, 0xac3: 0x2069, 0xac4: 0x206f, 0xac5: 0x2075,
+	0xac6: 0x207b, 0xac7: 0x2081, 0xac8: 0x2087, 0xac9: 0x208d, 0xaca: 0x2093, 0xacb: 0x2099,
+	0xacc: 0x209f, 0xacd: 0x20a5, 0xace: 0x2729, 0xacf: 0x2732, 0xad0: 0x273b, 0xad1: 0x2744,
+	0xad2: 0x274d, 0xad3: 0x2756, 0xad4: 0x275f, 0xad5: 0x2768, 0xad6: 0x2771, 0xad7: 0x2783,
+	0xad8: 0x278c, 0xad9: 0x2795, 0xada: 0x279e, 0xadb: 0x27a7, 0xadc: 0x277a, 0xadd: 0x2baf,
+	0xade: 0x2af0, 0xae0: 0x20ab, 0xae1: 0x20c3, 0xae2: 0x20b7, 0xae3: 0x210b,
+	0xae4: 0x20c9, 0xae5: 0x20e7, 0xae6: 0x20b1, 0xae7: 0x20e1, 0xae8: 0x20bd, 0xae9: 0x20f3,
+	0xaea: 0x2123, 0xaeb: 0x2141, 0xaec: 0x213b, 0xaed: 0x212f, 0xaee: 0x217d, 0xaef: 0x2111,
+	0xaf0: 0x211d, 0xaf1: 0x2135, 0xaf2: 0x2129, 0xaf3: 0x2153, 0xaf4: 0x20ff, 0xaf5: 0x2147,
+	0xaf6: 0x2171, 0xaf7: 0x2159, 0xaf8: 0x20ed, 0xaf9: 0x20cf, 0xafa: 0x2105, 0xafb: 0x2117,
+	0xafc: 0x214d, 0xafd: 0x20d5, 0xafe: 0x2177, 0xaff: 0x20f9,
+	// Block 0x2c, offset 0xb00
+	0xb00: 0x215f, 0xb01: 0x20db, 0xb02: 0x2165, 0xb03: 0x216b, 0xb04: 0x092f, 0xb05: 0x0b03,
+	0xb06: 0x0ca7, 0xb07: 0x10c7,
+	0xb10: 0x1bc7, 0xb11: 0x18a9,
+	0xb12: 0x18ac, 0xb13: 0x18af, 0xb14: 0x18b2, 0xb15: 0x18b5, 0xb16: 0x18b8, 0xb17: 0x18bb,
+	0xb18: 0x18be, 0xb19: 0x18c1, 0xb1a: 0x18ca, 0xb1b: 0x18cd, 0xb1c: 0x18d0, 0xb1d: 0x18d3,
+	0xb1e: 0x18d6, 0xb1f: 0x18d9, 0xb20: 0x0313, 0xb21: 0x031b, 0xb22: 0x031f, 0xb23: 0x0327,
+	0xb24: 0x032b, 0xb25: 0x032f, 0xb26: 0x0337, 0xb27: 0x033f, 0xb28: 0x0343, 0xb29: 0x034b,
+	0xb2a: 0x034f, 0xb2b: 0x0353, 0xb2c: 0x0357, 0xb2d: 0x035b, 0xb2e: 0x2e1b, 0xb2f: 0x2e23,
+	0xb30: 0x2e2b, 0xb31: 0x2e33, 0xb32: 0x2e3b, 0xb33: 0x2e43, 0xb34: 0x2e4b, 0xb35: 0x2e53,
+	0xb36: 0x2e63, 0xb37: 0x2e6b, 0xb38: 0x2e73, 0xb39: 0x2e7b, 0xb3a: 0x2e83, 0xb3b: 0x2e8b,
+	0xb3c: 0x2ed6, 0xb3d: 0x2e9e, 0xb3e: 0x2e5b,
+	// Block 0x2d, offset 0xb40
+	0xb40: 0x06bf, 0xb41: 0x071b, 0xb42: 0x06cb, 0xb43: 0x097b, 0xb44: 0x071f, 0xb45: 0x07af,
+	0xb46: 0x06c7, 0xb47: 0x07ab, 0xb48: 0x070b, 0xb49: 0x0887, 0xb4a: 0x0d07, 0xb4b: 0x0e8f,
+	0xb4c: 0x0dd7, 0xb4d: 0x0d1b, 0xb4e: 0x145f, 0xb4f: 0x098b, 0xb50: 0x0ccf, 0xb51: 0x0d4b,
+	0xb52: 0x0d0b, 0xb53: 0x104b, 0xb54: 0x08fb, 0xb55: 0x0f03, 0xb56: 0x1387, 0xb57: 0x105f,
+	0xb58: 0x0843, 0xb59: 0x108f, 0xb5a: 0x0f9b, 0xb5b: 0x0a17, 0xb5c: 0x140f, 0xb5d: 0x077f,
+	0xb5e: 0x08ab, 0xb5f: 0x0df7, 0xb60: 0x1527, 0xb61: 0x0743, 0xb62: 0x07d3, 0xb63: 0x0d9b,
+	0xb64: 0x06cf, 0xb65: 0x06e7, 0xb66: 0x06d3, 0xb67: 0x0adb, 0xb68: 0x08ef, 0xb69: 0x087f,
+	0xb6a: 0x0a57, 0xb6b: 0x0a4b, 0xb6c: 0x0feb, 0xb6d: 0x073f, 0xb6e: 0x139b, 0xb6f: 0x089b,
+	0xb70: 0x09f3, 0xb71: 0x18dc, 0xb72: 0x18df, 0xb73: 0x18e2, 0xb74: 0x18e5, 0xb75: 0x18ee,
+	0xb76: 0x18f1, 0xb77: 0x18f4, 0xb78: 0x18f7, 0xb79: 0x18fa, 0xb7a: 0x18fd, 0xb7b: 0x1900,
+	0xb7c: 0x1903, 0xb7d: 0x1906, 0xb7e: 0x1909, 0xb7f: 0x1912,
+	// Block 0x2e, offset 0xb80
+	0xb80: 0x1cc9, 0xb81: 0x1cd8, 0xb82: 0x1ce7, 0xb83: 0x1cf6, 0xb84: 0x1d05, 0xb85: 0x1d14,
+	0xb86: 0x1d23, 0xb87: 0x1d32, 0xb88: 0x1d41, 0xb89: 0x218f, 0xb8a: 0x21a1, 0xb8b: 0x21b3,
+	0xb8c: 0x1954, 0xb8d: 0x1c07, 0xb8e: 0x19d5, 0xb8f: 0x1bab, 0xb90: 0x04cb, 0xb91: 0x04d3,
+	0xb92: 0x04db, 0xb93: 0x04e3, 0xb94: 0x04eb, 0xb95: 0x04ef, 0xb96: 0x04f3, 0xb97: 0x04f7,
+	0xb98: 0x04fb, 0xb99: 0x04ff, 0xb9a: 0x0503, 0xb9b: 0x0507, 0xb9c: 0x050b, 0xb9d: 0x050f,
+	0xb9e: 0x0513, 0xb9f: 0x0517, 0xba0: 0x051b, 0xba1: 0x0523, 0xba2: 0x0527, 0xba3: 0x052b,
+	0xba4: 0x052f, 0xba5: 0x0533, 0xba6: 0x0537, 0xba7: 0x053b, 0xba8: 0x053f, 0xba9: 0x0543,
+	0xbaa: 0x0547, 0xbab: 0x054b, 0xbac: 0x054f, 0xbad: 0x0553, 0xbae: 0x0557, 0xbaf: 0x055b,
+	0xbb0: 0x055f, 0xbb1: 0x0563, 0xbb2: 0x0567, 0xbb3: 0x056f, 0xbb4: 0x0577, 0xbb5: 0x057f,
+	0xbb6: 0x0583, 0xbb7: 0x0587, 0xbb8: 0x058b, 0xbb9: 0x058f, 0xbba: 0x0593, 0xbbb: 0x0597,
+	0xbbc: 0x059b, 0xbbd: 0x059f, 0xbbe: 0x05a3,
+	// Block 0x2f, offset 0xbc0
+	0xbc0: 0x2b0f, 0xbc1: 0x29ab, 0xbc2: 0x2b1f, 0xbc3: 0x2883, 0xbc4: 0x2ee7, 0xbc5: 0x288d,
+	0xbc6: 0x2897, 0xbc7: 0x2f2b, 0xbc8: 0x29b8, 0xbc9: 0x28a1, 0xbca: 0x28ab, 0xbcb: 0x28b5,
+	0xbcc: 0x29df, 0xbcd: 0x29ec, 0xbce: 0x29c5, 0xbcf: 0x29d2, 0xbd0: 0x2eac, 0xbd1: 0x29f9,
+	0xbd2: 0x2a06, 0xbd3: 0x2bc1, 0xbd4: 0x26be, 0xbd5: 0x2bd4, 0xbd6: 0x2be7, 0xbd7: 0x2b2f,
+	0xbd8: 0x2a13, 0xbd9: 0x2bfa, 0xbda: 0x2c0d, 0xbdb: 0x2a20, 0xbdc: 0x28bf, 0xbdd: 0x28c9,
+	0xbde: 0x2eba, 0xbdf: 0x2a2d, 0xbe0: 0x2b3f, 0xbe1: 0x2ef8, 0xbe2: 0x28d3, 0xbe3: 0x28dd,
+	0xbe4: 0x2a3a, 0xbe5: 0x28e7, 0xbe6: 0x28f1, 0xbe7: 0x26d3, 0xbe8: 0x26da, 0xbe9: 0x28fb,
+	0xbea: 0x2905, 0xbeb: 0x2c20, 0xbec: 0x2a47, 0xbed: 0x2b4f, 0xbee: 0x2c33, 0xbef: 0x2a54,
+	0xbf0: 0x2919, 0xbf1: 0x290f, 0xbf2: 0x2f3f, 0xbf3: 0x2a61, 0xbf4: 0x2c46, 0xbf5: 0x2923,
+	0xbf6: 0x2b5f, 0xbf7: 0x292d, 0xbf8: 0x2a7b, 0xbf9: 0x2937, 0xbfa: 0x2a88, 0xbfb: 0x2f09,
+	0xbfc: 0x2a6e, 0xbfd: 0x2b6f, 0xbfe: 0x2a95, 0xbff: 0x26e1,
+	// Block 0x30, offset 0xc00
+	0xc00: 0x2f1a, 0xc01: 0x2941, 0xc02: 0x294b, 0xc03: 0x2aa2, 0xc04: 0x2955, 0xc05: 0x295f,
+	0xc06: 0x2969, 0xc07: 0x2b7f, 0xc08: 0x2aaf, 0xc09: 0x26e8, 0xc0a: 0x2c59, 0xc0b: 0x2e93,
+	0xc0c: 0x2b8f, 0xc0d: 0x2abc, 0xc0e: 0x2ec8, 0xc0f: 0x2973, 0xc10: 0x297d, 0xc11: 0x2ac9,
+	0xc12: 0x26ef, 0xc13: 0x2ad6, 0xc14: 0x2b9f, 0xc15: 0x26f6, 0xc16: 0x2c6c, 0xc17: 0x2987,
+	0xc18: 0x1cba, 0xc19: 0x1cce, 0xc1a: 0x1cdd, 0xc1b: 0x1cec, 0xc1c: 0x1cfb, 0xc1d: 0x1d0a,
+	0xc1e: 0x1d19, 0xc1f: 0x1d28, 0xc20: 0x1d37, 0xc21: 0x1d46, 0xc22: 0x2195, 0xc23: 0x21a7,
+	0xc24: 0x21b9, 0xc25: 0x21c5, 0xc26: 0x21d1, 0xc27: 0x21dd, 0xc28: 0x21e9, 0xc29: 0x21f5,
+	0xc2a: 0x2201, 0xc2b: 0x220d, 0xc2c: 0x2249, 0xc2d: 0x2255, 0xc2e: 0x2261, 0xc2f: 0x226d,
+	0xc30: 0x2279, 0xc31: 0x1c17, 0xc32: 0x19c9, 0xc33: 0x1936, 0xc34: 0x1be7, 0xc35: 0x1a4a,
+	0xc36: 0x1a59, 0xc37: 0x19cf, 0xc38: 0x1bff, 0xc39: 0x1c03, 0xc3a: 0x1960, 0xc3b: 0x2704,
+	0xc3c: 0x2712, 0xc3d: 0x26fd, 0xc3e: 0x270b, 0xc3f: 0x2ae3,
+	// Block 0x31, offset 0xc40
+	0xc40: 0x1a4d, 0xc41: 0x1a35, 0xc42: 0x1c63, 0xc43: 0x1a1d, 0xc44: 0x19f6, 0xc45: 0x1969,
+	0xc46: 0x1978, 0xc47: 0x1948, 0xc48: 0x1bf3, 0xc49: 0x1d55, 0xc4a: 0x1a50, 0xc4b: 0x1a38,
+	0xc4c: 0x1c67, 0xc4d: 0x1c73, 0xc4e: 0x1a29, 0xc4f: 0x19ff, 0xc50: 0x1957, 0xc51: 0x1c1f,
+	0xc52: 0x1bb3, 0xc53: 0x1b9f, 0xc54: 0x1bcf, 0xc55: 0x1c77, 0xc56: 0x1a2c, 0xc57: 0x19cc,
+	0xc58: 0x1a02, 0xc59: 0x19e1, 0xc5a: 0x1a44, 0xc5b: 0x1c7b, 0xc5c: 0x1a2f, 0xc5d: 0x19c3,
+	0xc5e: 0x1a05, 0xc5f: 0x1c3f, 0xc60: 0x1bf7, 0xc61: 0x1a17, 0xc62: 0x1c27, 0xc63: 0x1c43,
+	0xc64: 0x1bfb, 0xc65: 0x1a1a, 0xc66: 0x1c2b, 0xc67: 0x22eb, 0xc68: 0x22ff, 0xc69: 0x1999,
+	0xc6a: 0x1c23, 0xc6b: 0x1bb7, 0xc6c: 0x1ba3, 0xc6d: 0x1c4b, 0xc6e: 0x2719, 0xc6f: 0x27b0,
+	0xc70: 0x1a5c, 0xc71: 0x1a47, 0xc72: 0x1c7f, 0xc73: 0x1a32, 0xc74: 0x1a53, 0xc75: 0x1a3b,
+	0xc76: 0x1c6b, 0xc77: 0x1a20, 0xc78: 0x19f9, 0xc79: 0x1984, 0xc7a: 0x1a56, 0xc7b: 0x1a3e,
+	0xc7c: 0x1c6f, 0xc7d: 0x1a23, 0xc7e: 0x19fc, 0xc7f: 0x1987,
+	// Block 0x32, offset 0xc80
+	0xc80: 0x1c2f, 0xc81: 0x1bbb, 0xc82: 0x1d50, 0xc83: 0x1939, 0xc84: 0x19bd, 0xc85: 0x19c0,
+	0xc86: 0x22f8, 0xc87: 0x1b97, 0xc88: 0x19c6, 0xc89: 0x194b, 0xc8a: 0x19e4, 0xc8b: 0x194e,
+	0xc8c: 0x19ed, 0xc8d: 0x196c, 0xc8e: 0x196f, 0xc8f: 0x1a08, 0xc90: 0x1a0e, 0xc91: 0x1a11,
+	0xc92: 0x1c33, 0xc93: 0x1a14, 0xc94: 0x1a26, 0xc95: 0x1c3b, 0xc96: 0x1c47, 0xc97: 0x1993,
+	0xc98: 0x1d5a, 0xc99: 0x1bbf, 0xc9a: 0x1996, 0xc9b: 0x1a5f, 0xc9c: 0x19a8, 0xc9d: 0x19b7,
+	0xc9e: 0x22e5, 0xc9f: 0x22df, 0xca0: 0x1cc4, 0xca1: 0x1cd3, 0xca2: 0x1ce2, 0xca3: 0x1cf1,
+	0xca4: 0x1d00, 0xca5: 0x1d0f, 0xca6: 0x1d1e, 0xca7: 0x1d2d, 0xca8: 0x1d3c, 0xca9: 0x2189,
+	0xcaa: 0x219b, 0xcab: 0x21ad, 0xcac: 0x21bf, 0xcad: 0x21cb, 0xcae: 0x21d7, 0xcaf: 0x21e3,
+	0xcb0: 0x21ef, 0xcb1: 0x21fb, 0xcb2: 0x2207, 0xcb3: 0x2243, 0xcb4: 0x224f, 0xcb5: 0x225b,
+	0xcb6: 0x2267, 0xcb7: 0x2273, 0xcb8: 0x227f, 0xcb9: 0x2285, 0xcba: 0x228b, 0xcbb: 0x2291,
+	0xcbc: 0x2297, 0xcbd: 0x22a9, 0xcbe: 0x22af, 0xcbf: 0x1c13,
+	// Block 0x33, offset 0xcc0
+	0xcc0: 0x1377, 0xcc1: 0x0cfb, 0xcc2: 0x13d3, 0xcc3: 0x139f, 0xcc4: 0x0e57, 0xcc5: 0x06eb,
+	0xcc6: 0x08df, 0xcc7: 0x162b, 0xcc8: 0x162b, 0xcc9: 0x0a0b, 0xcca: 0x145f, 0xccb: 0x0943,
+	0xccc: 0x0a07, 0xccd: 0x0bef, 0xcce: 0x0fcf, 0xccf: 0x115f, 0xcd0: 0x1297, 0xcd1: 0x12d3,
+	0xcd2: 0x1307, 0xcd3: 0x141b, 0xcd4: 0x0d73, 0xcd5: 0x0dff, 0xcd6: 0x0eab, 0xcd7: 0x0f43,
+	0xcd8: 0x125f, 0xcd9: 0x1447, 0xcda: 0x1573, 0xcdb: 0x070f, 0xcdc: 0x08b3, 0xcdd: 0x0d87,
+	0xcde: 0x0ecf, 0xcdf: 0x1293, 0xce0: 0x15c3, 0xce1: 0x0ab3, 0xce2: 0x0e77, 0xce3: 0x1283,
+	0xce4: 0x1317, 0xce5: 0x0c23, 0xce6: 0x11bb, 0xce7: 0x12df, 0xce8: 0x0b1f, 0xce9: 0x0d0f,
+	0xcea: 0x0e17, 0xceb: 0x0f1b, 0xcec: 0x1427, 0xced: 0x074f, 0xcee: 0x07e7, 0xcef: 0x0853,
+	0xcf0: 0x0c8b, 0xcf1: 0x0d7f, 0xcf2: 0x0ecb, 0xcf3: 0x0fef, 0xcf4: 0x1177, 0xcf5: 0x128b,
+	0xcf6: 0x12a3, 0xcf7: 0x13c7, 0xcf8: 0x14ef, 0xcf9: 0x15a3, 0xcfa: 0x15bf, 0xcfb: 0x102b,
+	0xcfc: 0x106b, 0xcfd: 0x1123, 0xcfe: 0x1243, 0xcff: 0x147b,
+	// Block 0x34, offset 0xd00
+	0xd00: 0x15cb, 0xd01: 0x134b, 0xd02: 0x09c7, 0xd03: 0x0b3b, 0xd04: 0x10db, 0xd05: 0x119b,
+	0xd06: 0x0eff, 0xd07: 0x1033, 0xd08: 0x1397, 0xd09: 0x14e7, 0xd0a: 0x09c3, 0xd0b: 0x0a8f,
+	0xd0c: 0x0d77, 0xd0d: 0x0e2b, 0xd0e: 0x0e5f, 0xd0f: 0x1113, 0xd10: 0x113b, 0xd11: 0x14a7,
+	0xd12: 0x084f, 0xd13: 0x11a7, 0xd14: 0x07f3, 0xd15: 0x07ef, 0xd16: 0x1097, 0xd17: 0x1127,
+	0xd18: 0x125b, 0xd19: 0x14af, 0xd1a: 0x1367, 0xd1b: 0x0c27, 0xd1c: 0x0d73, 0xd1d: 0x1357,
+	0xd1e: 0x06f7, 0xd1f: 0x0a63, 0xd20: 0x0b93, 0xd21: 0x0f2f, 0xd22: 0x0faf, 0xd23: 0x0873,
+	0xd24: 0x103b, 0xd25: 0x075f, 0xd26: 0x0b77, 0xd27: 0x06d7, 0xd28: 0x0deb, 0xd29: 0x0ca3,
+	0xd2a: 0x110f, 0xd2b: 0x08c7, 0xd2c: 0x09b3, 0xd2d: 0x0ffb, 0xd2e: 0x1263, 0xd2f: 0x133b,
+	0xd30: 0x0db7, 0xd31: 0x13f7, 0xd32: 0x0de3, 0xd33: 0x0c37, 0xd34: 0x121b, 0xd35: 0x0c57,
+	0xd36: 0x0fab, 0xd37: 0x072b, 0xd38: 0x07a7, 0xd39: 0x07eb, 0xd3a: 0x0d53, 0xd3b: 0x10fb,
+	0xd3c: 0x11f3, 0xd3d: 0x1347, 0xd3e: 0x145b, 0xd3f: 0x085b,
+	// Block 0x35, offset 0xd40
+	0xd40: 0x090f, 0xd41: 0x0a17, 0xd42: 0x0b2f, 0xd43: 0x0cbf, 0xd44: 0x0e7b, 0xd45: 0x103f,
+	0xd46: 0x1497, 0xd47: 0x157b, 0xd48: 0x15cf, 0xd49: 0x15e7, 0xd4a: 0x0837, 0xd4b: 0x0cf3,
+	0xd4c: 0x0da3, 0xd4d: 0x13eb, 0xd4e: 0x0afb, 0xd4f: 0x0bd7, 0xd50: 0x0bf3, 0xd51: 0x0c83,
+	0xd52: 0x0e6b, 0xd53: 0x0eb7, 0xd54: 0x0f67, 0xd55: 0x108b, 0xd56: 0x112f, 0xd57: 0x1193,
+	0xd58: 0x13db, 0xd59: 0x126b, 0xd5a: 0x1403, 0xd5b: 0x147f, 0xd5c: 0x080f, 0xd5d: 0x083b,
+	0xd5e: 0x0923, 0xd5f: 0x0ea7, 0xd60: 0x12f3, 0xd61: 0x133b, 0xd62: 0x0b1b, 0xd63: 0x0b8b,
+	0xd64: 0x0c4f, 0xd65: 0x0daf, 0xd66: 0x10d7, 0xd67: 0x0f23, 0xd68: 0x073b, 0xd69: 0x097f,
+	0xd6a: 0x0a63, 0xd6b: 0x0ac7, 0xd6c: 0x0b97, 0xd6d: 0x0f3f, 0xd6e: 0x0f5b, 0xd6f: 0x116b,
+	0xd70: 0x118b, 0xd71: 0x1463, 0xd72: 0x14e3, 0xd73: 0x14f3, 0xd74: 0x152f, 0xd75: 0x0753,
+	0xd76: 0x107f, 0xd77: 0x144f, 0xd78: 0x14cb, 0xd79: 0x0baf, 0xd7a: 0x0717, 0xd7b: 0x0777,
+	0xd7c: 0x0a67, 0xd7d: 0x0a87, 0xd7e: 0x0caf, 0xd7f: 0x0d73,
+	// Block 0x36, offset 0xd80
+	0xd80: 0x0ec3, 0xd81: 0x0fcb, 0xd82: 0x1277, 0xd83: 0x1417, 0xd84: 0x1623, 0xd85: 0x0ce3,
+	0xd86: 0x14a3, 0xd87: 0x0833, 0xd88: 0x0d2f, 0xd89: 0x0d3b, 0xd8a: 0x0e0f, 0xd8b: 0x0e47,
+	0xd8c: 0x0f4b, 0xd8d: 0x0fa7, 0xd8e: 0x1027, 0xd8f: 0x110b, 0xd90: 0x153b, 0xd91: 0x07af,
+	0xd92: 0x0c03, 0xd93: 0x14b3, 0xd94: 0x0767, 0xd95: 0x0aab, 0xd96: 0x0e2f, 0xd97: 0x13df,
+	0xd98: 0x0b67, 0xd99: 0x0bb7, 0xd9a: 0x0d43, 0xd9b: 0x0f2f, 0xd9c: 0x14bb, 0xd9d: 0x0817,
+	0xd9e: 0x08ff, 0xd9f: 0x0a97, 0xda0: 0x0cd3, 0xda1: 0x0d1f, 0xda2: 0x0d5f, 0xda3: 0x0df3,
+	0xda4: 0x0f47, 0xda5: 0x0fbb, 0xda6: 0x1157, 0xda7: 0x12f7, 0xda8: 0x1303, 0xda9: 0x1457,
+	0xdaa: 0x14d7, 0xdab: 0x0883, 0xdac: 0x0e4b, 0xdad: 0x0903, 0xdae: 0x0ec7, 0xdaf: 0x0f6b,
+	0xdb0: 0x1287, 0xdb1: 0x14bf, 0xdb2: 0x15ab, 0xdb3: 0x15d3, 0xdb4: 0x0d37, 0xdb5: 0x0e27,
+	0xdb6: 0x11c3, 0xdb7: 0x10b7, 0xdb8: 0x10c3, 0xdb9: 0x10e7, 0xdba: 0x0f17, 0xdbb: 0x0e9f,
+	0xdbc: 0x1363, 0xdbd: 0x0733, 0xdbe: 0x122b, 0xdbf: 0x081b,
+	// Block 0x37, offset 0xdc0
+	0xdc0: 0x080b, 0xdc1: 0x0b0b, 0xdc2: 0x0c2b, 0xdc3: 0x10f3, 0xdc4: 0x0a53, 0xdc5: 0x0e03,
+	0xdc6: 0x0cef, 0xdc7: 0x13e7, 0xdc8: 0x12e7, 0xdc9: 0x14ab, 0xdca: 0x1323, 0xdcb: 0x0b27,
+	0xdcc: 0x0787, 0xdcd: 0x095b, 0xdd0: 0x09af,
+	0xdd2: 0x0cdf, 0xdd5: 0x07f7, 0xdd6: 0x0f1f, 0xdd7: 0x0fe3,
+	0xdd8: 0x1047, 0xdd9: 0x1063, 0xdda: 0x1067, 0xddb: 0x107b, 0xddc: 0x14fb, 0xddd: 0x10eb,
+	0xdde: 0x116f, 0xde0: 0x128f, 0xde2: 0x1353,
+	0xde5: 0x1407, 0xde6: 0x1433,
+	0xdea: 0x154f, 0xdeb: 0x1553, 0xdec: 0x1557, 0xded: 0x15bb, 0xdee: 0x142b, 0xdef: 0x14c7,
+	0xdf0: 0x0757, 0xdf1: 0x077b, 0xdf2: 0x078f, 0xdf3: 0x084b, 0xdf4: 0x0857, 0xdf5: 0x0897,
+	0xdf6: 0x094b, 0xdf7: 0x0967, 0xdf8: 0x096f, 0xdf9: 0x09ab, 0xdfa: 0x09b7, 0xdfb: 0x0a93,
+	0xdfc: 0x0a9b, 0xdfd: 0x0ba3, 0xdfe: 0x0bcb, 0xdff: 0x0bd3,
+	// Block 0x38, offset 0xe00
+	0xe00: 0x0beb, 0xe01: 0x0c97, 0xe02: 0x0cc7, 0xe03: 0x0ce7, 0xe04: 0x0d57, 0xe05: 0x0e1b,
+	0xe06: 0x0e37, 0xe07: 0x0e67, 0xe08: 0x0ebb, 0xe09: 0x0edb, 0xe0a: 0x0f4f, 0xe0b: 0x102f,
+	0xe0c: 0x104b, 0xe0d: 0x1053, 0xe0e: 0x104f, 0xe0f: 0x1057, 0xe10: 0x105b, 0xe11: 0x105f,
+	0xe12: 0x1073, 0xe13: 0x1077, 0xe14: 0x109b, 0xe15: 0x10af, 0xe16: 0x10cb, 0xe17: 0x112f,
+	0xe18: 0x1137, 0xe19: 0x113f, 0xe1a: 0x1153, 0xe1b: 0x117b, 0xe1c: 0x11cb, 0xe1d: 0x11ff,
+	0xe1e: 0x11ff, 0xe1f: 0x1267, 0xe20: 0x130f, 0xe21: 0x1327, 0xe22: 0x135b, 0xe23: 0x135f,
+	0xe24: 0x13a3, 0xe25: 0x13a7, 0xe26: 0x13ff, 0xe27: 0x1407, 0xe28: 0x14db, 0xe29: 0x151f,
+	0xe2a: 0x1537, 0xe2b: 0x0b9b, 0xe2c: 0x171e, 0xe2d: 0x11e3,
+	0xe30: 0x06df, 0xe31: 0x07e3, 0xe32: 0x07a3, 0xe33: 0x074b, 0xe34: 0x078b, 0xe35: 0x07b7,
+	0xe36: 0x0847, 0xe37: 0x0863, 0xe38: 0x094b, 0xe39: 0x0937, 0xe3a: 0x0947, 0xe3b: 0x0963,
+	0xe3c: 0x09af, 0xe3d: 0x09bf, 0xe3e: 0x0a03, 0xe3f: 0x0a0f,
+	// Block 0x39, offset 0xe40
+	0xe40: 0x0a2b, 0xe41: 0x0a3b, 0xe42: 0x0b23, 0xe43: 0x0b2b, 0xe44: 0x0b5b, 0xe45: 0x0b7b,
+	0xe46: 0x0bab, 0xe47: 0x0bc3, 0xe48: 0x0bb3, 0xe49: 0x0bd3, 0xe4a: 0x0bc7, 0xe4b: 0x0beb,
+	0xe4c: 0x0c07, 0xe4d: 0x0c5f, 0xe4e: 0x0c6b, 0xe4f: 0x0c73, 0xe50: 0x0c9b, 0xe51: 0x0cdf,
+	0xe52: 0x0d0f, 0xe53: 0x0d13, 0xe54: 0x0d27, 0xe55: 0x0da7, 0xe56: 0x0db7, 0xe57: 0x0e0f,
+	0xe58: 0x0e5b, 0xe59: 0x0e53, 0xe5a: 0x0e67, 0xe5b: 0x0e83, 0xe5c: 0x0ebb, 0xe5d: 0x1013,
+	0xe5e: 0x0edf, 0xe5f: 0x0f13, 0xe60: 0x0f1f, 0xe61: 0x0f5f, 0xe62: 0x0f7b, 0xe63: 0x0f9f,
+	0xe64: 0x0fc3, 0xe65: 0x0fc7, 0xe66: 0x0fe3, 0xe67: 0x0fe7, 0xe68: 0x0ff7, 0xe69: 0x100b,
+	0xe6a: 0x1007, 0xe6b: 0x1037, 0xe6c: 0x10b3, 0xe6d: 0x10cb, 0xe6e: 0x10e3, 0xe6f: 0x111b,
+	0xe70: 0x112f, 0xe71: 0x114b, 0xe72: 0x117b, 0xe73: 0x122f, 0xe74: 0x1257, 0xe75: 0x12cb,
+	0xe76: 0x1313, 0xe77: 0x131f, 0xe78: 0x1327, 0xe79: 0x133f, 0xe7a: 0x1353, 0xe7b: 0x1343,
+	0xe7c: 0x135b, 0xe7d: 0x1357, 0xe7e: 0x134f, 0xe7f: 0x135f,
+	// Block 0x3a, offset 0xe80
+	0xe80: 0x136b, 0xe81: 0x13a7, 0xe82: 0x13e3, 0xe83: 0x1413, 0xe84: 0x144b, 0xe85: 0x146b,
+	0xe86: 0x14b7, 0xe87: 0x14db, 0xe88: 0x14fb, 0xe89: 0x150f, 0xe8a: 0x151f, 0xe8b: 0x152b,
+	0xe8c: 0x1537, 0xe8d: 0x158b, 0xe8e: 0x162b, 0xe8f: 0x16b5, 0xe90: 0x16b0, 0xe91: 0x16e2,
+	0xe92: 0x0607, 0xe93: 0x062f, 0xe94: 0x0633, 0xe95: 0x1764, 0xe96: 0x1791, 0xe97: 0x1809,
+	0xe98: 0x1617, 0xe99: 0x1627,
+	// Block 0x3b, offset 0xec0
+	0xec0: 0x19d8, 0xec1: 0x19db, 0xec2: 0x19de, 0xec3: 0x1c0b, 0xec4: 0x1c0f, 0xec5: 0x1a62,
+	0xec6: 0x1a62,
+	0xed3: 0x1d78, 0xed4: 0x1d69, 0xed5: 0x1d6e, 0xed6: 0x1d7d, 0xed7: 0x1d73,
+	0xedd: 0x4393,
+	0xede: 0x8115, 0xedf: 0x4405, 0xee0: 0x022d, 0xee1: 0x0215, 0xee2: 0x021e, 0xee3: 0x0221,
+	0xee4: 0x0224, 0xee5: 0x0227, 0xee6: 0x022a, 0xee7: 0x0230, 0xee8: 0x0233, 0xee9: 0x0017,
+	0xeea: 0x43f3, 0xeeb: 0x43f9, 0xeec: 0x44f7, 0xeed: 0x44ff, 0xeee: 0x434b, 0xeef: 0x4351,
+	0xef0: 0x4357, 0xef1: 0x435d, 0xef2: 0x4369, 0xef3: 0x436f, 0xef4: 0x4375, 0xef5: 0x4381,
+	0xef6: 0x4387, 0xef8: 0x438d, 0xef9: 0x4399, 0xefa: 0x439f, 0xefb: 0x43a5,
+	0xefc: 0x43b1, 0xefe: 0x43b7,
+	// Block 0x3c, offset 0xf00
+	0xf00: 0x43bd, 0xf01: 0x43c3, 0xf03: 0x43c9, 0xf04: 0x43cf,
+	0xf06: 0x43db, 0xf07: 0x43e1, 0xf08: 0x43e7, 0xf09: 0x43ed, 0xf0a: 0x43ff, 0xf0b: 0x437b,
+	0xf0c: 0x4363, 0xf0d: 0x43ab, 0xf0e: 0x43d5, 0xf0f: 0x1d82, 0xf10: 0x0299, 0xf11: 0x0299,
+	0xf12: 0x02a2, 0xf13: 0x02a2, 0xf14: 0x02a2, 0xf15: 0x02a2, 0xf16: 0x02a5, 0xf17: 0x02a5,
+	0xf18: 0x02a5, 0xf19: 0x02a5, 0xf1a: 0x02ab, 0xf1b: 0x02ab, 0xf1c: 0x02ab, 0xf1d: 0x02ab,
+	0xf1e: 0x029f, 0xf1f: 0x029f, 0xf20: 0x029f, 0xf21: 0x029f, 0xf22: 0x02a8, 0xf23: 0x02a8,
+	0xf24: 0x02a8, 0xf25: 0x02a8, 0xf26: 0x029c, 0xf27: 0x029c, 0xf28: 0x029c, 0xf29: 0x029c,
+	0xf2a: 0x02cf, 0xf2b: 0x02cf, 0xf2c: 0x02cf, 0xf2d: 0x02cf, 0xf2e: 0x02d2, 0xf2f: 0x02d2,
+	0xf30: 0x02d2, 0xf31: 0x02d2, 0xf32: 0x02b1, 0xf33: 0x02b1, 0xf34: 0x02b1, 0xf35: 0x02b1,
+	0xf36: 0x02ae, 0xf37: 0x02ae, 0xf38: 0x02ae, 0xf39: 0x02ae, 0xf3a: 0x02b4, 0xf3b: 0x02b4,
+	0xf3c: 0x02b4, 0xf3d: 0x02b4, 0xf3e: 0x02b7, 0xf3f: 0x02b7,
+	// Block 0x3d, offset 0xf40
+	0xf40: 0x02b7, 0xf41: 0x02b7, 0xf42: 0x02c0, 0xf43: 0x02c0, 0xf44: 0x02bd, 0xf45: 0x02bd,
+	0xf46: 0x02c3, 0xf47: 0x02c3, 0xf48: 0x02ba, 0xf49: 0x02ba, 0xf4a: 0x02c9, 0xf4b: 0x02c9,
+	0xf4c: 0x02c6, 0xf4d: 0x02c6, 0xf4e: 0x02d5, 0xf4f: 0x02d5, 0xf50: 0x02d5, 0xf51: 0x02d5,
+	0xf52: 0x02db, 0xf53: 0x02db, 0xf54: 0x02db, 0xf55: 0x02db, 0xf56: 0x02e1, 0xf57: 0x02e1,
+	0xf58: 0x02e1, 0xf59: 0x02e1, 0xf5a: 0x02de, 0xf5b: 0x02de, 0xf5c: 0x02de, 0xf5d: 0x02de,
+	0xf5e: 0x02e4, 0xf5f: 0x02e4, 0xf60: 0x02e7, 0xf61: 0x02e7, 0xf62: 0x02e7, 0xf63: 0x02e7,
+	0xf64: 0x4471, 0xf65: 0x4471, 0xf66: 0x02ed, 0xf67: 0x02ed, 0xf68: 0x02ed, 0xf69: 0x02ed,
+	0xf6a: 0x02ea, 0xf6b: 0x02ea, 0xf6c: 0x02ea, 0xf6d: 0x02ea, 0xf6e: 0x0308, 0xf6f: 0x0308,
+	0xf70: 0x446b, 0xf71: 0x446b,
+	// Block 0x3e, offset 0xf80
+	0xf93: 0x02d8, 0xf94: 0x02d8, 0xf95: 0x02d8, 0xf96: 0x02d8, 0xf97: 0x02f6,
+	0xf98: 0x02f6, 0xf99: 0x02f3, 0xf9a: 0x02f3, 0xf9b: 0x02f9, 0xf9c: 0x02f9, 0xf9d: 0x2052,
+	0xf9e: 0x02ff, 0xf9f: 0x02ff, 0xfa0: 0x02f0, 0xfa1: 0x02f0, 0xfa2: 0x02fc, 0xfa3: 0x02fc,
+	0xfa4: 0x0305, 0xfa5: 0x0305, 0xfa6: 0x0305, 0xfa7: 0x0305, 0xfa8: 0x028d, 0xfa9: 0x028d,
+	0xfaa: 0x25ad, 0xfab: 0x25ad, 0xfac: 0x261d, 0xfad: 0x261d, 0xfae: 0x25ec, 0xfaf: 0x25ec,
+	0xfb0: 0x2608, 0xfb1: 0x2608, 0xfb2: 0x2601, 0xfb3: 0x2601, 0xfb4: 0x260f, 0xfb5: 0x260f,
+	0xfb6: 0x2616, 0xfb7: 0x2616, 0xfb8: 0x2616, 0xfb9: 0x25f3, 0xfba: 0x25f3, 0xfbb: 0x25f3,
+	0xfbc: 0x0302, 0xfbd: 0x0302, 0xfbe: 0x0302, 0xfbf: 0x0302,
+	// Block 0x3f, offset 0xfc0
+	0xfc0: 0x25b4, 0xfc1: 0x25bb, 0xfc2: 0x25d7, 0xfc3: 0x25f3, 0xfc4: 0x25fa, 0xfc5: 0x1d8c,
+	0xfc6: 0x1d91, 0xfc7: 0x1d96, 0xfc8: 0x1da5, 0xfc9: 0x1db4, 0xfca: 0x1db9, 0xfcb: 0x1dbe,
+	0xfcc: 0x1dc3, 0xfcd: 0x1dc8, 0xfce: 0x1dd7, 0xfcf: 0x1de6, 0xfd0: 0x1deb, 0xfd1: 0x1df0,
+	0xfd2: 0x1dff, 0xfd3: 0x1e0e, 0xfd4: 0x1e13, 0xfd5: 0x1e18, 0xfd6: 0x1e1d, 0xfd7: 0x1e2c,
+	0xfd8: 0x1e31, 0xfd9: 0x1e40, 0xfda: 0x1e45, 0xfdb: 0x1e4a, 0xfdc: 0x1e59, 0xfdd: 0x1e5e,
+	0xfde: 0x1e63, 0xfdf: 0x1e6d, 0xfe0: 0x1ea9, 0xfe1: 0x1eb8, 0xfe2: 0x1ec7, 0xfe3: 0x1ecc,
+	0xfe4: 0x1ed1, 0xfe5: 0x1edb, 0xfe6: 0x1eea, 0xfe7: 0x1eef, 0xfe8: 0x1efe, 0xfe9: 0x1f03,
+	0xfea: 0x1f08, 0xfeb: 0x1f17, 0xfec: 0x1f1c, 0xfed: 0x1f2b, 0xfee: 0x1f30, 0xfef: 0x1f35,
+	0xff0: 0x1f3a, 0xff1: 0x1f3f, 0xff2: 0x1f44, 0xff3: 0x1f49, 0xff4: 0x1f4e, 0xff5: 0x1f53,
+	0xff6: 0x1f58, 0xff7: 0x1f5d, 0xff8: 0x1f62, 0xff9: 0x1f67, 0xffa: 0x1f6c, 0xffb: 0x1f71,
+	0xffc: 0x1f76, 0xffd: 0x1f7b, 0xffe: 0x1f80, 0xfff: 0x1f8a,
+	// Block 0x40, offset 0x1000
+	0x1000: 0x1f8f, 0x1001: 0x1f94, 0x1002: 0x1f99, 0x1003: 0x1fa3, 0x1004: 0x1fa8, 0x1005: 0x1fb2,
+	0x1006: 0x1fb7, 0x1007: 0x1fbc, 0x1008: 0x1fc1, 0x1009: 0x1fc6, 0x100a: 0x1fcb, 0x100b: 0x1fd0,
+	0x100c: 0x1fd5, 0x100d: 0x1fda, 0x100e: 0x1fe9, 0x100f: 0x1ff8, 0x1010: 0x1ffd, 0x1011: 0x2002,
+	0x1012: 0x2007, 0x1013: 0x200c, 0x1014: 0x2011, 0x1015: 0x201b, 0x1016: 0x2020, 0x1017: 0x2025,
+	0x1018: 0x2034, 0x1019: 0x2043, 0x101a: 0x2048, 0x101b: 0x4423, 0x101c: 0x4429, 0x101d: 0x445f,
+	0x101e: 0x44b6, 0x101f: 0x44bd, 0x1020: 0x44c4, 0x1021: 0x44cb, 0x1022: 0x44d2, 0x1023: 0x44d9,
+	0x1024: 0x25c9, 0x1025: 0x25d0, 0x1026: 0x25d7, 0x1027: 0x25de, 0x1028: 0x25f3, 0x1029: 0x25fa,
+	0x102a: 0x1d9b, 0x102b: 0x1da0, 0x102c: 0x1da5, 0x102d: 0x1daa, 0x102e: 0x1db4, 0x102f: 0x1db9,
+	0x1030: 0x1dcd, 0x1031: 0x1dd2, 0x1032: 0x1dd7, 0x1033: 0x1ddc, 0x1034: 0x1de6, 0x1035: 0x1deb,
+	0x1036: 0x1df5, 0x1037: 0x1dfa, 0x1038: 0x1dff, 0x1039: 0x1e04, 0x103a: 0x1e0e, 0x103b: 0x1e13,
+	0x103c: 0x1f3f, 0x103d: 0x1f44, 0x103e: 0x1f53, 0x103f: 0x1f58,
+	// Block 0x41, offset 0x1040
+	0x1040: 0x1f5d, 0x1041: 0x1f71, 0x1042: 0x1f76, 0x1043: 0x1f7b, 0x1044: 0x1f80, 0x1045: 0x1f99,
+	0x1046: 0x1fa3, 0x1047: 0x1fa8, 0x1048: 0x1fad, 0x1049: 0x1fc1, 0x104a: 0x1fdf, 0x104b: 0x1fe4,
+	0x104c: 0x1fe9, 0x104d: 0x1fee, 0x104e: 0x1ff8, 0x104f: 0x1ffd, 0x1050: 0x445f, 0x1051: 0x202a,
+	0x1052: 0x202f, 0x1053: 0x2034, 0x1054: 0x2039, 0x1055: 0x2043, 0x1056: 0x2048, 0x1057: 0x25b4,
+	0x1058: 0x25bb, 0x1059: 0x25c2, 0x105a: 0x25d7, 0x105b: 0x25e5, 0x105c: 0x1d8c, 0x105d: 0x1d91,
+	0x105e: 0x1d96, 0x105f: 0x1da5, 0x1060: 0x1daf, 0x1061: 0x1dbe, 0x1062: 0x1dc3, 0x1063: 0x1dc8,
+	0x1064: 0x1dd7, 0x1065: 0x1de1, 0x1066: 0x1dff, 0x1067: 0x1e18, 0x1068: 0x1e1d, 0x1069: 0x1e2c,
+	0x106a: 0x1e31, 0x106b: 0x1e40, 0x106c: 0x1e4a, 0x106d: 0x1e59, 0x106e: 0x1e5e, 0x106f: 0x1e63,
+	0x1070: 0x1e6d, 0x1071: 0x1ea9, 0x1072: 0x1eae, 0x1073: 0x1eb8, 0x1074: 0x1ec7, 0x1075: 0x1ecc,
+	0x1076: 0x1ed1, 0x1077: 0x1edb, 0x1078: 0x1eea, 0x1079: 0x1efe, 0x107a: 0x1f03, 0x107b: 0x1f08,
+	0x107c: 0x1f17, 0x107d: 0x1f1c, 0x107e: 0x1f2b, 0x107f: 0x1f30,
+	// Block 0x42, offset 0x1080
+	0x1080: 0x1f35, 0x1081: 0x1f3a, 0x1082: 0x1f49, 0x1083: 0x1f4e, 0x1084: 0x1f62, 0x1085: 0x1f67,
+	0x1086: 0x1f6c, 0x1087: 0x1f71, 0x1088: 0x1f76, 0x1089: 0x1f8a, 0x108a: 0x1f8f, 0x108b: 0x1f94,
+	0x108c: 0x1f99, 0x108d: 0x1f9e, 0x108e: 0x1fb2, 0x108f: 0x1fb7, 0x1090: 0x1fbc, 0x1091: 0x1fc1,
+	0x1092: 0x1fd0, 0x1093: 0x1fd5, 0x1094: 0x1fda, 0x1095: 0x1fe9, 0x1096: 0x1ff3, 0x1097: 0x2002,
+	0x1098: 0x2007, 0x1099: 0x4453, 0x109a: 0x201b, 0x109b: 0x2020, 0x109c: 0x2025, 0x109d: 0x2034,
+	0x109e: 0x203e, 0x109f: 0x25d7, 0x10a0: 0x25e5, 0x10a1: 0x1da5, 0x10a2: 0x1daf, 0x10a3: 0x1dd7,
+	0x10a4: 0x1de1, 0x10a5: 0x1dff, 0x10a6: 0x1e09, 0x10a7: 0x1e6d, 0x10a8: 0x1e72, 0x10a9: 0x1e95,
+	0x10aa: 0x1e9a, 0x10ab: 0x1f71, 0x10ac: 0x1f76, 0x10ad: 0x1f99, 0x10ae: 0x1fe9, 0x10af: 0x1ff3,
+	0x10b0: 0x2034, 0x10b1: 0x203e, 0x10b2: 0x4507, 0x10b3: 0x450f, 0x10b4: 0x4517, 0x10b5: 0x1ef4,
+	0x10b6: 0x1ef9, 0x10b7: 0x1f0d, 0x10b8: 0x1f12, 0x10b9: 0x1f21, 0x10ba: 0x1f26, 0x10bb: 0x1e77,
+	0x10bc: 0x1e7c, 0x10bd: 0x1e9f, 0x10be: 0x1ea4, 0x10bf: 0x1e36,
+	// Block 0x43, offset 0x10c0
+	0x10c0: 0x1e3b, 0x10c1: 0x1e22, 0x10c2: 0x1e27, 0x10c3: 0x1e4f, 0x10c4: 0x1e54, 0x10c5: 0x1ebd,
+	0x10c6: 0x1ec2, 0x10c7: 0x1ee0, 0x10c8: 0x1ee5, 0x10c9: 0x1e81, 0x10ca: 0x1e86, 0x10cb: 0x1e8b,
+	0x10cc: 0x1e95, 0x10cd: 0x1e90, 0x10ce: 0x1e68, 0x10cf: 0x1eb3, 0x10d0: 0x1ed6, 0x10d1: 0x1ef4,
+	0x10d2: 0x1ef9, 0x10d3: 0x1f0d, 0x10d4: 0x1f12, 0x10d5: 0x1f21, 0x10d6: 0x1f26, 0x10d7: 0x1e77,
+	0x10d8: 0x1e7c, 0x10d9: 0x1e9f, 0x10da: 0x1ea4, 0x10db: 0x1e36, 0x10dc: 0x1e3b, 0x10dd: 0x1e22,
+	0x10de: 0x1e27, 0x10df: 0x1e4f, 0x10e0: 0x1e54, 0x10e1: 0x1ebd, 0x10e2: 0x1ec2, 0x10e3: 0x1ee0,
+	0x10e4: 0x1ee5, 0x10e5: 0x1e81, 0x10e6: 0x1e86, 0x10e7: 0x1e8b, 0x10e8: 0x1e95, 0x10e9: 0x1e90,
+	0x10ea: 0x1e68, 0x10eb: 0x1eb3, 0x10ec: 0x1ed6, 0x10ed: 0x1e81, 0x10ee: 0x1e86, 0x10ef: 0x1e8b,
+	0x10f0: 0x1e95, 0x10f1: 0x1e72, 0x10f2: 0x1e9a, 0x10f3: 0x1eef, 0x10f4: 0x1e59, 0x10f5: 0x1e5e,
+	0x10f6: 0x1e63, 0x10f7: 0x1e81, 0x10f8: 0x1e86, 0x10f9: 0x1e8b, 0x10fa: 0x1eef, 0x10fb: 0x1efe,
+	0x10fc: 0x440b, 0x10fd: 0x440b,
+	// Block 0x44, offset 0x1100
+	0x1110: 0x2314, 0x1111: 0x2329,
+	0x1112: 0x2329, 0x1113: 0x2330, 0x1114: 0x2337, 0x1115: 0x234c, 0x1116: 0x2353, 0x1117: 0x235a,
+	0x1118: 0x237d, 0x1119: 0x237d, 0x111a: 0x23a0, 0x111b: 0x2399, 0x111c: 0x23b5, 0x111d: 0x23a7,
+	0x111e: 0x23ae, 0x111f: 0x23d1, 0x1120: 0x23d1, 0x1121: 0x23ca, 0x1122: 0x23d8, 0x1123: 0x23d8,
+	0x1124: 0x2402, 0x1125: 0x2402, 0x1126: 0x241e, 0x1127: 0x23e6, 0x1128: 0x23e6, 0x1129: 0x23df,
+	0x112a: 0x23f4, 0x112b: 0x23f4, 0x112c: 0x23fb, 0x112d: 0x23fb, 0x112e: 0x2425, 0x112f: 0x2433,
+	0x1130: 0x2433, 0x1131: 0x243a, 0x1132: 0x243a, 0x1133: 0x2441, 0x1134: 0x2448, 0x1135: 0x244f,
+	0x1136: 0x2456, 0x1137: 0x2456, 0x1138: 0x245d, 0x1139: 0x246b, 0x113a: 0x2479, 0x113b: 0x2472,
+	0x113c: 0x2480, 0x113d: 0x2480, 0x113e: 0x2495, 0x113f: 0x249c,
+	// Block 0x45, offset 0x1140
+	0x1140: 0x24cd, 0x1141: 0x24db, 0x1142: 0x24d4, 0x1143: 0x24b8, 0x1144: 0x24b8, 0x1145: 0x24e2,
+	0x1146: 0x24e2, 0x1147: 0x24e9, 0x1148: 0x24e9, 0x1149: 0x2513, 0x114a: 0x251a, 0x114b: 0x2521,
+	0x114c: 0x24f7, 0x114d: 0x2505, 0x114e: 0x2528, 0x114f: 0x252f,
+	0x1152: 0x24fe, 0x1153: 0x2583, 0x1154: 0x258a, 0x1155: 0x2560, 0x1156: 0x2567, 0x1157: 0x254b,
+	0x1158: 0x254b, 0x1159: 0x2552, 0x115a: 0x257c, 0x115b: 0x2575, 0x115c: 0x259f, 0x115d: 0x259f,
+	0x115e: 0x230d, 0x115f: 0x2322, 0x1160: 0x231b, 0x1161: 0x2345, 0x1162: 0x233e, 0x1163: 0x2368,
+	0x1164: 0x2361, 0x1165: 0x238b, 0x1166: 0x236f, 0x1167: 0x2384, 0x1168: 0x23bc, 0x1169: 0x2409,
+	0x116a: 0x23ed, 0x116b: 0x242c, 0x116c: 0x24c6, 0x116d: 0x24f0, 0x116e: 0x2598, 0x116f: 0x2591,
+	0x1170: 0x25a6, 0x1171: 0x253d, 0x1172: 0x24a3, 0x1173: 0x256e, 0x1174: 0x2495, 0x1175: 0x24cd,
+	0x1176: 0x2464, 0x1177: 0x24b1, 0x1178: 0x2544, 0x1179: 0x2536, 0x117a: 0x24bf, 0x117b: 0x24aa,
+	0x117c: 0x24bf, 0x117d: 0x2544, 0x117e: 0x2376, 0x117f: 0x2392,
+	// Block 0x46, offset 0x1180
+	0x1180: 0x250c, 0x1181: 0x2487, 0x1182: 0x2306, 0x1183: 0x24aa, 0x1184: 0x244f, 0x1185: 0x241e,
+	0x1186: 0x23c3, 0x1187: 0x2559,
+	0x11b0: 0x2417, 0x11b1: 0x248e, 0x11b2: 0x27c2, 0x11b3: 0x27b9, 0x11b4: 0x27ef, 0x11b5: 0x27dd,
+	0x11b6: 0x27cb, 0x11b7: 0x27e6, 0x11b8: 0x27f8, 0x11b9: 0x2410, 0x11ba: 0x2c7f, 0x11bb: 0x2aff,
+	0x11bc: 0x27d4,
+	// Block 0x47, offset 0x11c0
+	0x11d0: 0x0019, 0x11d1: 0x0483,
+	0x11d2: 0x0487, 0x11d3: 0x0035, 0x11d4: 0x0037, 0x11d5: 0x0003, 0x11d6: 0x003f, 0x11d7: 0x04bf,
+	0x11d8: 0x04c3, 0x11d9: 0x1b5f,
+	0x11e0: 0x8132, 0x11e1: 0x8132, 0x11e2: 0x8132, 0x11e3: 0x8132,
+	0x11e4: 0x8132, 0x11e5: 0x8132, 0x11e6: 0x8132, 0x11e7: 0x812d, 0x11e8: 0x812d, 0x11e9: 0x812d,
+	0x11ea: 0x812d, 0x11eb: 0x812d, 0x11ec: 0x812d, 0x11ed: 0x812d, 0x11ee: 0x8132, 0x11ef: 0x8132,
+	0x11f0: 0x1873, 0x11f1: 0x0443, 0x11f2: 0x043f, 0x11f3: 0x007f, 0x11f4: 0x007f, 0x11f5: 0x0011,
+	0x11f6: 0x0013, 0x11f7: 0x00b7, 0x11f8: 0x00bb, 0x11f9: 0x04b7, 0x11fa: 0x04bb, 0x11fb: 0x04ab,
+	0x11fc: 0x04af, 0x11fd: 0x0493, 0x11fe: 0x0497, 0x11ff: 0x048b,
+	// Block 0x48, offset 0x1200
+	0x1200: 0x048f, 0x1201: 0x049b, 0x1202: 0x049f, 0x1203: 0x04a3, 0x1204: 0x04a7,
+	0x1207: 0x0077, 0x1208: 0x007b, 0x1209: 0x426c, 0x120a: 0x426c, 0x120b: 0x426c,
+	0x120c: 0x426c, 0x120d: 0x007f, 0x120e: 0x007f, 0x120f: 0x007f, 0x1210: 0x0019, 0x1211: 0x0483,
+	0x1212: 0x001d, 0x1214: 0x0037, 0x1215: 0x0035, 0x1216: 0x003f, 0x1217: 0x0003,
+	0x1218: 0x0443, 0x1219: 0x0011, 0x121a: 0x0013, 0x121b: 0x00b7, 0x121c: 0x00bb, 0x121d: 0x04b7,
+	0x121e: 0x04bb, 0x121f: 0x0007, 0x1220: 0x000d, 0x1221: 0x0015, 0x1222: 0x0017, 0x1223: 0x001b,
+	0x1224: 0x0039, 0x1225: 0x003d, 0x1226: 0x003b, 0x1228: 0x0079, 0x1229: 0x0009,
+	0x122a: 0x000b, 0x122b: 0x0041,
+	0x1230: 0x42ad, 0x1231: 0x442f, 0x1232: 0x42b2, 0x1234: 0x42b7,
+	0x1236: 0x42bc, 0x1237: 0x4435, 0x1238: 0x42c1, 0x1239: 0x443b, 0x123a: 0x42c6, 0x123b: 0x4441,
+	0x123c: 0x42cb, 0x123d: 0x4447, 0x123e: 0x42d0, 0x123f: 0x444d,
+	// Block 0x49, offset 0x1240
+	0x1240: 0x0236, 0x1241: 0x4411, 0x1242: 0x4411, 0x1243: 0x4417, 0x1244: 0x4417, 0x1245: 0x4459,
+	0x1246: 0x4459, 0x1247: 0x441d, 0x1248: 0x441d, 0x1249: 0x4465, 0x124a: 0x4465, 0x124b: 0x4465,
+	0x124c: 0x4465, 0x124d: 0x0239, 0x124e: 0x0239, 0x124f: 0x023c, 0x1250: 0x023c, 0x1251: 0x023c,
+	0x1252: 0x023c, 0x1253: 0x023f, 0x1254: 0x023f, 0x1255: 0x0242, 0x1256: 0x0242, 0x1257: 0x0242,
+	0x1258: 0x0242, 0x1259: 0x0245, 0x125a: 0x0245, 0x125b: 0x0245, 0x125c: 0x0245, 0x125d: 0x0248,
+	0x125e: 0x0248, 0x125f: 0x0248, 0x1260: 0x0248, 0x1261: 0x024b, 0x1262: 0x024b, 0x1263: 0x024b,
+	0x1264: 0x024b, 0x1265: 0x024e, 0x1266: 0x024e, 0x1267: 0x024e, 0x1268: 0x024e, 0x1269: 0x0251,
+	0x126a: 0x0251, 0x126b: 0x0254, 0x126c: 0x0254, 0x126d: 0x0257, 0x126e: 0x0257, 0x126f: 0x025a,
+	0x1270: 0x025a, 0x1271: 0x025d, 0x1272: 0x025d, 0x1273: 0x025d, 0x1274: 0x025d, 0x1275: 0x0260,
+	0x1276: 0x0260, 0x1277: 0x0260, 0x1278: 0x0260, 0x1279: 0x0263, 0x127a: 0x0263, 0x127b: 0x0263,
+	0x127c: 0x0263, 0x127d: 0x0266, 0x127e: 0x0266, 0x127f: 0x0266,
+	// Block 0x4a, offset 0x1280
+	0x1280: 0x0266, 0x1281: 0x0269, 0x1282: 0x0269, 0x1283: 0x0269, 0x1284: 0x0269, 0x1285: 0x026c,
+	0x1286: 0x026c, 0x1287: 0x026c, 0x1288: 0x026c, 0x1289: 0x026f, 0x128a: 0x026f, 0x128b: 0x026f,
+	0x128c: 0x026f, 0x128d: 0x0272, 0x128e: 0x0272, 0x128f: 0x0272, 0x1290: 0x0272, 0x1291: 0x0275,
+	0x1292: 0x0275, 0x1293: 0x0275, 0x1294: 0x0275, 0x1295: 0x0278, 0x1296: 0x0278, 0x1297: 0x0278,
+	0x1298: 0x0278, 0x1299: 0x027b, 0x129a: 0x027b, 0x129b: 0x027b, 0x129c: 0x027b, 0x129d: 0x027e,
+	0x129e: 0x027e, 0x129f: 0x027e, 0x12a0: 0x027e, 0x12a1: 0x0281, 0x12a2: 0x0281, 0x12a3: 0x0281,
+	0x12a4: 0x0281, 0x12a5: 0x0284, 0x12a6: 0x0284, 0x12a7: 0x0284, 0x12a8: 0x0284, 0x12a9: 0x0287,
+	0x12aa: 0x0287, 0x12ab: 0x0287, 0x12ac: 0x0287, 0x12ad: 0x028a, 0x12ae: 0x028a, 0x12af: 0x028d,
+	0x12b0: 0x028d, 0x12b1: 0x0290, 0x12b2: 0x0290, 0x12b3: 0x0290, 0x12b4: 0x0290, 0x12b5: 0x2e03,
+	0x12b6: 0x2e03, 0x12b7: 0x2e0b, 0x12b8: 0x2e0b, 0x12b9: 0x2e13, 0x12ba: 0x2e13, 0x12bb: 0x1f85,
+	0x12bc: 0x1f85,
+	// Block 0x4b, offset 0x12c0
+	0x12c0: 0x0081, 0x12c1: 0x0083, 0x12c2: 0x0085, 0x12c3: 0x0087, 0x12c4: 0x0089, 0x12c5: 0x008b,
+	0x12c6: 0x008d, 0x12c7: 0x008f, 0x12c8: 0x0091, 0x12c9: 0x0093, 0x12ca: 0x0095, 0x12cb: 0x0097,
+	0x12cc: 0x0099, 0x12cd: 0x009b, 0x12ce: 0x009d, 0x12cf: 0x009f, 0x12d0: 0x00a1, 0x12d1: 0x00a3,
+	0x12d2: 0x00a5, 0x12d3: 0x00a7, 0x12d4: 0x00a9, 0x12d5: 0x00ab, 0x12d6: 0x00ad, 0x12d7: 0x00af,
+	0x12d8: 0x00b1, 0x12d9: 0x00b3, 0x12da: 0x00b5, 0x12db: 0x00b7, 0x12dc: 0x00b9, 0x12dd: 0x00bb,
+	0x12de: 0x00bd, 0x12df: 0x0477, 0x12e0: 0x047b, 0x12e1: 0x0487, 0x12e2: 0x049b, 0x12e3: 0x049f,
+	0x12e4: 0x0483, 0x12e5: 0x05ab, 0x12e6: 0x05a3, 0x12e7: 0x04c7, 0x12e8: 0x04cf, 0x12e9: 0x04d7,
+	0x12ea: 0x04df, 0x12eb: 0x04e7, 0x12ec: 0x056b, 0x12ed: 0x0573, 0x12ee: 0x057b, 0x12ef: 0x051f,
+	0x12f0: 0x05af, 0x12f1: 0x04cb, 0x12f2: 0x04d3, 0x12f3: 0x04db, 0x12f4: 0x04e3, 0x12f5: 0x04eb,
+	0x12f6: 0x04ef, 0x12f7: 0x04f3, 0x12f8: 0x04f7, 0x12f9: 0x04fb, 0x12fa: 0x04ff, 0x12fb: 0x0503,
+	0x12fc: 0x0507, 0x12fd: 0x050b, 0x12fe: 0x050f, 0x12ff: 0x0513,
+	// Block 0x4c, offset 0x1300
+	0x1300: 0x0517, 0x1301: 0x051b, 0x1302: 0x0523, 0x1303: 0x0527, 0x1304: 0x052b, 0x1305: 0x052f,
+	0x1306: 0x0533, 0x1307: 0x0537, 0x1308: 0x053b, 0x1309: 0x053f, 0x130a: 0x0543, 0x130b: 0x0547,
+	0x130c: 0x054b, 0x130d: 0x054f, 0x130e: 0x0553, 0x130f: 0x0557, 0x1310: 0x055b, 0x1311: 0x055f,
+	0x1312: 0x0563, 0x1313: 0x0567, 0x1314: 0x056f, 0x1315: 0x0577, 0x1316: 0x057f, 0x1317: 0x0583,
+	0x1318: 0x0587, 0x1319: 0x058b, 0x131a: 0x058f, 0x131b: 0x0593, 0x131c: 0x0597, 0x131d: 0x05a7,
+	0x131e: 0x4a7b, 0x131f: 0x4a81, 0x1320: 0x03c3, 0x1321: 0x0313, 0x1322: 0x0317, 0x1323: 0x4a3e,
+	0x1324: 0x031b, 0x1325: 0x4a44, 0x1326: 0x4a4a, 0x1327: 0x031f, 0x1328: 0x0323, 0x1329: 0x0327,
+	0x132a: 0x4a50, 0x132b: 0x4a56, 0x132c: 0x4a5c, 0x132d: 0x4a62, 0x132e: 0x4a68, 0x132f: 0x4a6e,
+	0x1330: 0x0367, 0x1331: 0x032b, 0x1332: 0x032f, 0x1333: 0x0333, 0x1334: 0x037b, 0x1335: 0x0337,
+	0x1336: 0x033b, 0x1337: 0x033f, 0x1338: 0x0343, 0x1339: 0x0347, 0x133a: 0x034b, 0x133b: 0x034f,
+	0x133c: 0x0353, 0x133d: 0x0357, 0x133e: 0x035b,
+	// Block 0x4d, offset 0x1340
+	0x1342: 0x49c0, 0x1343: 0x49c6, 0x1344: 0x49cc, 0x1345: 0x49d2,
+	0x1346: 0x49d8, 0x1347: 0x49de, 0x134a: 0x49e4, 0x134b: 0x49ea,
+	0x134c: 0x49f0, 0x134d: 0x49f6, 0x134e: 0x49fc, 0x134f: 0x4a02,
+	0x1352: 0x4a08, 0x1353: 0x4a0e, 0x1354: 0x4a14, 0x1355: 0x4a1a, 0x1356: 0x4a20, 0x1357: 0x4a26,
+	0x135a: 0x4a2c, 0x135b: 0x4a32, 0x135c: 0x4a38,
+	0x1360: 0x00bf, 0x1361: 0x00c2, 0x1362: 0x00cb, 0x1363: 0x4267,
+	0x1364: 0x00c8, 0x1365: 0x00c5, 0x1366: 0x0447, 0x1368: 0x046b, 0x1369: 0x044b,
+	0x136a: 0x044f, 0x136b: 0x0453, 0x136c: 0x0457, 0x136d: 0x046f, 0x136e: 0x0473,
+	// Block 0x4e, offset 0x1380
+	0x1380: 0x0063, 0x1381: 0x0065, 0x1382: 0x0067, 0x1383: 0x0069, 0x1384: 0x006b, 0x1385: 0x006d,
+	0x1386: 0x006f, 0x1387: 0x0071, 0x1388: 0x0073, 0x1389: 0x0075, 0x138a: 0x0083, 0x138b: 0x0085,
+	0x138c: 0x0087, 0x138d: 0x0089, 0x138e: 0x008b, 0x138f: 0x008d, 0x1390: 0x008f, 0x1391: 0x0091,
+	0x1392: 0x0093, 0x1393: 0x0095, 0x1394: 0x0097, 0x1395: 0x0099, 0x1396: 0x009b, 0x1397: 0x009d,
+	0x1398: 0x009f, 0x1399: 0x00a1, 0x139a: 0x00a3, 0x139b: 0x00a5, 0x139c: 0x00a7, 0x139d: 0x00a9,
+	0x139e: 0x00ab, 0x139f: 0x00ad, 0x13a0: 0x00af, 0x13a1: 0x00b1, 0x13a2: 0x00b3, 0x13a3: 0x00b5,
+	0x13a4: 0x00dd, 0x13a5: 0x00f2, 0x13a8: 0x0173, 0x13a9: 0x0176,
+	0x13aa: 0x0179, 0x13ab: 0x017c, 0x13ac: 0x017f, 0x13ad: 0x0182, 0x13ae: 0x0185, 0x13af: 0x0188,
+	0x13b0: 0x018b, 0x13b1: 0x018e, 0x13b2: 0x0191, 0x13b3: 0x0194, 0x13b4: 0x0197, 0x13b5: 0x019a,
+	0x13b6: 0x019d, 0x13b7: 0x01a0, 0x13b8: 0x01a3, 0x13b9: 0x0188, 0x13ba: 0x01a6, 0x13bb: 0x01a9,
+	0x13bc: 0x01ac, 0x13bd: 0x01af, 0x13be: 0x01b2, 0x13bf: 0x01b5,
+	// Block 0x4f, offset 0x13c0
+	0x13c0: 0x01fd, 0x13c1: 0x0200, 0x13c2: 0x0203, 0x13c3: 0x045b, 0x13c4: 0x01c7, 0x13c5: 0x01d0,
+	0x13c6: 0x01d6, 0x13c7: 0x01fa, 0x13c8: 0x01eb, 0x13c9: 0x01e8, 0x13ca: 0x0206, 0x13cb: 0x0209,
+	0x13ce: 0x0021, 0x13cf: 0x0023, 0x13d0: 0x0025, 0x13d1: 0x0027,
+	0x13d2: 0x0029, 0x13d3: 0x002b, 0x13d4: 0x002d, 0x13d5: 0x002f, 0x13d6: 0x0031, 0x13d7: 0x0033,
+	0x13d8: 0x0021, 0x13d9: 0x0023, 0x13da: 0x0025, 0x13db: 0x0027, 0x13dc: 0x0029, 0x13dd: 0x002b,
+	0x13de: 0x002d, 0x13df: 0x002f, 0x13e0: 0x0031, 0x13e1: 0x0033, 0x13e2: 0x0021, 0x13e3: 0x0023,
+	0x13e4: 0x0025, 0x13e5: 0x0027, 0x13e6: 0x0029, 0x13e7: 0x002b, 0x13e8: 0x002d, 0x13e9: 0x002f,
+	0x13ea: 0x0031, 0x13eb: 0x0033, 0x13ec: 0x0021, 0x13ed: 0x0023, 0x13ee: 0x0025, 0x13ef: 0x0027,
+	0x13f0: 0x0029, 0x13f1: 0x002b, 0x13f2: 0x002d, 0x13f3: 0x002f, 0x13f4: 0x0031, 0x13f5: 0x0033,
+	0x13f6: 0x0021, 0x13f7: 0x0023, 0x13f8: 0x0025, 0x13f9: 0x0027, 0x13fa: 0x0029, 0x13fb: 0x002b,
+	0x13fc: 0x002d, 0x13fd: 0x002f, 0x13fe: 0x0031, 0x13ff: 0x0033,
+	// Block 0x50, offset 0x1400
+	0x1400: 0x0239, 0x1401: 0x023c, 0x1402: 0x0248, 0x1403: 0x0251, 0x1405: 0x028a,
+	0x1406: 0x025a, 0x1407: 0x024b, 0x1408: 0x0269, 0x1409: 0x0290, 0x140a: 0x027b, 0x140b: 0x027e,
+	0x140c: 0x0281, 0x140d: 0x0284, 0x140e: 0x025d, 0x140f: 0x026f, 0x1410: 0x0275, 0x1411: 0x0263,
+	0x1412: 0x0278, 0x1413: 0x0257, 0x1414: 0x0260, 0x1415: 0x0242, 0x1416: 0x0245, 0x1417: 0x024e,
+	0x1418: 0x0254, 0x1419: 0x0266, 0x141a: 0x026c, 0x141b: 0x0272, 0x141c: 0x0293, 0x141d: 0x02e4,
+	0x141e: 0x02cc, 0x141f: 0x0296, 0x1421: 0x023c, 0x1422: 0x0248,
+	0x1424: 0x0287, 0x1427: 0x024b, 0x1429: 0x0290,
+	0x142a: 0x027b, 0x142b: 0x027e, 0x142c: 0x0281, 0x142d: 0x0284, 0x142e: 0x025d, 0x142f: 0x026f,
+	0x1430: 0x0275, 0x1431: 0x0263, 0x1432: 0x0278, 0x1434: 0x0260, 0x1435: 0x0242,
+	0x1436: 0x0245, 0x1437: 0x024e, 0x1439: 0x0266, 0x143b: 0x0272,
+	// Block 0x51, offset 0x1440
+	0x1442: 0x0248,
+	0x1447: 0x024b, 0x1449: 0x0290, 0x144b: 0x027e,
+	0x144d: 0x0284, 0x144e: 0x025d, 0x144f: 0x026f, 0x1451: 0x0263,
+	0x1452: 0x0278, 0x1454: 0x0260, 0x1457: 0x024e,
+	0x1459: 0x0266, 0x145b: 0x0272, 0x145d: 0x02e4,
+	0x145f: 0x0296, 0x1461: 0x023c, 0x1462: 0x0248,
+	0x1464: 0x0287, 0x1467: 0x024b, 0x1468: 0x0269, 0x1469: 0x0290,
+	0x146a: 0x027b, 0x146c: 0x0281, 0x146d: 0x0284, 0x146e: 0x025d, 0x146f: 0x026f,
+	0x1470: 0x0275, 0x1471: 0x0263, 0x1472: 0x0278, 0x1474: 0x0260, 0x1475: 0x0242,
+	0x1476: 0x0245, 0x1477: 0x024e, 0x1479: 0x0266, 0x147a: 0x026c, 0x147b: 0x0272,
+	0x147c: 0x0293, 0x147e: 0x02cc,
+	// Block 0x52, offset 0x1480
+	0x1480: 0x0239, 0x1481: 0x023c, 0x1482: 0x0248, 0x1483: 0x0251, 0x1484: 0x0287, 0x1485: 0x028a,
+	0x1486: 0x025a, 0x1487: 0x024b, 0x1488: 0x0269, 0x1489: 0x0290, 0x148b: 0x027e,
+	0x148c: 0x0281, 0x148d: 0x0284, 0x148e: 0x025d, 0x148f: 0x026f, 0x1490: 0x0275, 0x1491: 0x0263,
+	0x1492: 0x0278, 0x1493: 0x0257, 0x1494: 0x0260, 0x1495: 0x0242, 0x1496: 0x0245, 0x1497: 0x024e,
+	0x1498: 0x0254, 0x1499: 0x0266, 0x149a: 0x026c, 0x149b: 0x0272,
+	0x14a1: 0x023c, 0x14a2: 0x0248, 0x14a3: 0x0251,
+	0x14a5: 0x028a, 0x14a6: 0x025a, 0x14a7: 0x024b, 0x14a8: 0x0269, 0x14a9: 0x0290,
+	0x14ab: 0x027e, 0x14ac: 0x0281, 0x14ad: 0x0284, 0x14ae: 0x025d, 0x14af: 0x026f,
+	0x14b0: 0x0275, 0x14b1: 0x0263, 0x14b2: 0x0278, 0x14b3: 0x0257, 0x14b4: 0x0260, 0x14b5: 0x0242,
+	0x14b6: 0x0245, 0x14b7: 0x024e, 0x14b8: 0x0254, 0x14b9: 0x0266, 0x14ba: 0x026c, 0x14bb: 0x0272,
+	// Block 0x53, offset 0x14c0
+	0x14c0: 0x1879, 0x14c1: 0x1876, 0x14c2: 0x187c, 0x14c3: 0x18a0, 0x14c4: 0x18c4, 0x14c5: 0x18e8,
+	0x14c6: 0x190c, 0x14c7: 0x1915, 0x14c8: 0x191b, 0x14c9: 0x1921, 0x14ca: 0x1927,
+	0x14d0: 0x1a8f, 0x14d1: 0x1a93,
+	0x14d2: 0x1a97, 0x14d3: 0x1a9b, 0x14d4: 0x1a9f, 0x14d5: 0x1aa3, 0x14d6: 0x1aa7, 0x14d7: 0x1aab,
+	0x14d8: 0x1aaf, 0x14d9: 0x1ab3, 0x14da: 0x1ab7, 0x14db: 0x1abb, 0x14dc: 0x1abf, 0x14dd: 0x1ac3,
+	0x14de: 0x1ac7, 0x14df: 0x1acb, 0x14e0: 0x1acf, 0x14e1: 0x1ad3, 0x14e2: 0x1ad7, 0x14e3: 0x1adb,
+	0x14e4: 0x1adf, 0x14e5: 0x1ae3, 0x14e6: 0x1ae7, 0x14e7: 0x1aeb, 0x14e8: 0x1aef, 0x14e9: 0x1af3,
+	0x14ea: 0x2721, 0x14eb: 0x0047, 0x14ec: 0x0065, 0x14ed: 0x193c, 0x14ee: 0x19b4,
+	0x14f0: 0x0043, 0x14f1: 0x0045, 0x14f2: 0x0047, 0x14f3: 0x0049, 0x14f4: 0x004b, 0x14f5: 0x004d,
+	0x14f6: 0x004f, 0x14f7: 0x0051, 0x14f8: 0x0053, 0x14f9: 0x0055, 0x14fa: 0x0057, 0x14fb: 0x0059,
+	0x14fc: 0x005b, 0x14fd: 0x005d, 0x14fe: 0x005f, 0x14ff: 0x0061,
+	// Block 0x54, offset 0x1500
+	0x1500: 0x26b0, 0x1501: 0x26c5, 0x1502: 0x0503,
+	0x1510: 0x0c0f, 0x1511: 0x0a47,
+	0x1512: 0x08d3, 0x1513: 0x45c7, 0x1514: 0x071b, 0x1515: 0x09ef, 0x1516: 0x132f, 0x1517: 0x09ff,
+	0x1518: 0x0727, 0x1519: 0x0cd7, 0x151a: 0x0eaf, 0x151b: 0x0caf, 0x151c: 0x0827, 0x151d: 0x0b6b,
+	0x151e: 0x07bf, 0x151f: 0x0cb7, 0x1520: 0x0813, 0x1521: 0x1117, 0x1522: 0x0f83, 0x1523: 0x138b,
+	0x1524: 0x09d3, 0x1525: 0x090b, 0x1526: 0x0e63, 0x1527: 0x0c1b, 0x1528: 0x0c47, 0x1529: 0x06bf,
+	0x152a: 0x06cb, 0x152b: 0x140b, 0x152c: 0x0adb, 0x152d: 0x06e7, 0x152e: 0x08ef, 0x152f: 0x0c3b,
+	0x1530: 0x13b3, 0x1531: 0x0c13, 0x1532: 0x106f, 0x1533: 0x10ab, 0x1534: 0x08f7, 0x1535: 0x0e43,
+	0x1536: 0x0d0b, 0x1537: 0x0d07, 0x1538: 0x0f97, 0x1539: 0x082b, 0x153a: 0x0957, 0x153b: 0x1443,
+	// Block 0x55, offset 0x1540
+	0x1540: 0x06fb, 0x1541: 0x06f3, 0x1542: 0x0703, 0x1543: 0x1647, 0x1544: 0x0747, 0x1545: 0x0757,
+	0x1546: 0x075b, 0x1547: 0x0763, 0x1548: 0x076b, 0x1549: 0x076f, 0x154a: 0x077b, 0x154b: 0x0773,
+	0x154c: 0x05b3, 0x154d: 0x165b, 0x154e: 0x078f, 0x154f: 0x0793, 0x1550: 0x0797, 0x1551: 0x07b3,
+	0x1552: 0x164c, 0x1553: 0x05b7, 0x1554: 0x079f, 0x1555: 0x07bf, 0x1556: 0x1656, 0x1557: 0x07cf,
+	0x1558: 0x07d7, 0x1559: 0x0737, 0x155a: 0x07df, 0x155b: 0x07e3, 0x155c: 0x1831, 0x155d: 0x07ff,
+	0x155e: 0x0807, 0x155f: 0x05bf, 0x1560: 0x081f, 0x1561: 0x0823, 0x1562: 0x082b, 0x1563: 0x082f,
+	0x1564: 0x05c3, 0x1565: 0x0847, 0x1566: 0x084b, 0x1567: 0x0857, 0x1568: 0x0863, 0x1569: 0x0867,
+	0x156a: 0x086b, 0x156b: 0x0873, 0x156c: 0x0893, 0x156d: 0x0897, 0x156e: 0x089f, 0x156f: 0x08af,
+	0x1570: 0x08b7, 0x1571: 0x08bb, 0x1572: 0x08bb, 0x1573: 0x08bb, 0x1574: 0x166a, 0x1575: 0x0e93,
+	0x1576: 0x08cf, 0x1577: 0x08d7, 0x1578: 0x166f, 0x1579: 0x08e3, 0x157a: 0x08eb, 0x157b: 0x08f3,
+	0x157c: 0x091b, 0x157d: 0x0907, 0x157e: 0x0913, 0x157f: 0x0917,
+	// Block 0x56, offset 0x1580
+	0x1580: 0x091f, 0x1581: 0x0927, 0x1582: 0x092b, 0x1583: 0x0933, 0x1584: 0x093b, 0x1585: 0x093f,
+	0x1586: 0x093f, 0x1587: 0x0947, 0x1588: 0x094f, 0x1589: 0x0953, 0x158a: 0x095f, 0x158b: 0x0983,
+	0x158c: 0x0967, 0x158d: 0x0987, 0x158e: 0x096b, 0x158f: 0x0973, 0x1590: 0x080b, 0x1591: 0x09cf,
+	0x1592: 0x0997, 0x1593: 0x099b, 0x1594: 0x099f, 0x1595: 0x0993, 0x1596: 0x09a7, 0x1597: 0x09a3,
+	0x1598: 0x09bb, 0x1599: 0x1674, 0x159a: 0x09d7, 0x159b: 0x09db, 0x159c: 0x09e3, 0x159d: 0x09ef,
+	0x159e: 0x09f7, 0x159f: 0x0a13, 0x15a0: 0x1679, 0x15a1: 0x167e, 0x15a2: 0x0a1f, 0x15a3: 0x0a23,
+	0x15a4: 0x0a27, 0x15a5: 0x0a1b, 0x15a6: 0x0a2f, 0x15a7: 0x05c7, 0x15a8: 0x05cb, 0x15a9: 0x0a37,
+	0x15aa: 0x0a3f, 0x15ab: 0x0a3f, 0x15ac: 0x1683, 0x15ad: 0x0a5b, 0x15ae: 0x0a5f, 0x15af: 0x0a63,
+	0x15b0: 0x0a6b, 0x15b1: 0x1688, 0x15b2: 0x0a73, 0x15b3: 0x0a77, 0x15b4: 0x0b4f, 0x15b5: 0x0a7f,
+	0x15b6: 0x05cf, 0x15b7: 0x0a8b, 0x15b8: 0x0a9b, 0x15b9: 0x0aa7, 0x15ba: 0x0aa3, 0x15bb: 0x1692,
+	0x15bc: 0x0aaf, 0x15bd: 0x1697, 0x15be: 0x0abb, 0x15bf: 0x0ab7,
+	// Block 0x57, offset 0x15c0
+	0x15c0: 0x0abf, 0x15c1: 0x0acf, 0x15c2: 0x0ad3, 0x15c3: 0x05d3, 0x15c4: 0x0ae3, 0x15c5: 0x0aeb,
+	0x15c6: 0x0aef, 0x15c7: 0x0af3, 0x15c8: 0x05d7, 0x15c9: 0x169c, 0x15ca: 0x05db, 0x15cb: 0x0b0f,
+	0x15cc: 0x0b13, 0x15cd: 0x0b17, 0x15ce: 0x0b1f, 0x15cf: 0x1863, 0x15d0: 0x0b37, 0x15d1: 0x16a6,
+	0x15d2: 0x16a6, 0x15d3: 0x11d7, 0x15d4: 0x0b47, 0x15d5: 0x0b47, 0x15d6: 0x05df, 0x15d7: 0x16c9,
+	0x15d8: 0x179b, 0x15d9: 0x0b57, 0x15da: 0x0b5f, 0x15db: 0x05e3, 0x15dc: 0x0b73, 0x15dd: 0x0b83,
+	0x15de: 0x0b87, 0x15df: 0x0b8f, 0x15e0: 0x0b9f, 0x15e1: 0x05eb, 0x15e2: 0x05e7, 0x15e3: 0x0ba3,
+	0x15e4: 0x16ab, 0x15e5: 0x0ba7, 0x15e6: 0x0bbb, 0x15e7: 0x0bbf, 0x15e8: 0x0bc3, 0x15e9: 0x0bbf,
+	0x15ea: 0x0bcf, 0x15eb: 0x0bd3, 0x15ec: 0x0be3, 0x15ed: 0x0bdb, 0x15ee: 0x0bdf, 0x15ef: 0x0be7,
+	0x15f0: 0x0beb, 0x15f1: 0x0bef, 0x15f2: 0x0bfb, 0x15f3: 0x0bff, 0x15f4: 0x0c17, 0x15f5: 0x0c1f,
+	0x15f6: 0x0c2f, 0x15f7: 0x0c43, 0x15f8: 0x16ba, 0x15f9: 0x0c3f, 0x15fa: 0x0c33, 0x15fb: 0x0c4b,
+	0x15fc: 0x0c53, 0x15fd: 0x0c67, 0x15fe: 0x16bf, 0x15ff: 0x0c6f,
+	// Block 0x58, offset 0x1600
+	0x1600: 0x0c63, 0x1601: 0x0c5b, 0x1602: 0x05ef, 0x1603: 0x0c77, 0x1604: 0x0c7f, 0x1605: 0x0c87,
+	0x1606: 0x0c7b, 0x1607: 0x05f3, 0x1608: 0x0c97, 0x1609: 0x0c9f, 0x160a: 0x16c4, 0x160b: 0x0ccb,
+	0x160c: 0x0cff, 0x160d: 0x0cdb, 0x160e: 0x05ff, 0x160f: 0x0ce7, 0x1610: 0x05fb, 0x1611: 0x05f7,
+	0x1612: 0x07c3, 0x1613: 0x07c7, 0x1614: 0x0d03, 0x1615: 0x0ceb, 0x1616: 0x11ab, 0x1617: 0x0663,
+	0x1618: 0x0d0f, 0x1619: 0x0d13, 0x161a: 0x0d17, 0x161b: 0x0d2b, 0x161c: 0x0d23, 0x161d: 0x16dd,
+	0x161e: 0x0603, 0x161f: 0x0d3f, 0x1620: 0x0d33, 0x1621: 0x0d4f, 0x1622: 0x0d57, 0x1623: 0x16e7,
+	0x1624: 0x0d5b, 0x1625: 0x0d47, 0x1626: 0x0d63, 0x1627: 0x0607, 0x1628: 0x0d67, 0x1629: 0x0d6b,
+	0x162a: 0x0d6f, 0x162b: 0x0d7b, 0x162c: 0x16ec, 0x162d: 0x0d83, 0x162e: 0x060b, 0x162f: 0x0d8f,
+	0x1630: 0x16f1, 0x1631: 0x0d93, 0x1632: 0x060f, 0x1633: 0x0d9f, 0x1634: 0x0dab, 0x1635: 0x0db7,
+	0x1636: 0x0dbb, 0x1637: 0x16f6, 0x1638: 0x168d, 0x1639: 0x16fb, 0x163a: 0x0ddb, 0x163b: 0x1700,
+	0x163c: 0x0de7, 0x163d: 0x0def, 0x163e: 0x0ddf, 0x163f: 0x0dfb,
+	// Block 0x59, offset 0x1640
+	0x1640: 0x0e0b, 0x1641: 0x0e1b, 0x1642: 0x0e0f, 0x1643: 0x0e13, 0x1644: 0x0e1f, 0x1645: 0x0e23,
+	0x1646: 0x1705, 0x1647: 0x0e07, 0x1648: 0x0e3b, 0x1649: 0x0e3f, 0x164a: 0x0613, 0x164b: 0x0e53,
+	0x164c: 0x0e4f, 0x164d: 0x170a, 0x164e: 0x0e33, 0x164f: 0x0e6f, 0x1650: 0x170f, 0x1651: 0x1714,
+	0x1652: 0x0e73, 0x1653: 0x0e87, 0x1654: 0x0e83, 0x1655: 0x0e7f, 0x1656: 0x0617, 0x1657: 0x0e8b,
+	0x1658: 0x0e9b, 0x1659: 0x0e97, 0x165a: 0x0ea3, 0x165b: 0x1651, 0x165c: 0x0eb3, 0x165d: 0x1719,
+	0x165e: 0x0ebf, 0x165f: 0x1723, 0x1660: 0x0ed3, 0x1661: 0x0edf, 0x1662: 0x0ef3, 0x1663: 0x1728,
+	0x1664: 0x0f07, 0x1665: 0x0f0b, 0x1666: 0x172d, 0x1667: 0x1732, 0x1668: 0x0f27, 0x1669: 0x0f37,
+	0x166a: 0x061b, 0x166b: 0x0f3b, 0x166c: 0x061f, 0x166d: 0x061f, 0x166e: 0x0f53, 0x166f: 0x0f57,
+	0x1670: 0x0f5f, 0x1671: 0x0f63, 0x1672: 0x0f6f, 0x1673: 0x0623, 0x1674: 0x0f87, 0x1675: 0x1737,
+	0x1676: 0x0fa3, 0x1677: 0x173c, 0x1678: 0x0faf, 0x1679: 0x16a1, 0x167a: 0x0fbf, 0x167b: 0x1741,
+	0x167c: 0x1746, 0x167d: 0x174b, 0x167e: 0x0627, 0x167f: 0x062b,
+	// Block 0x5a, offset 0x1680
+	0x1680: 0x0ff7, 0x1681: 0x1755, 0x1682: 0x1750, 0x1683: 0x175a, 0x1684: 0x175f, 0x1685: 0x0fff,
+	0x1686: 0x1003, 0x1687: 0x1003, 0x1688: 0x100b, 0x1689: 0x0633, 0x168a: 0x100f, 0x168b: 0x0637,
+	0x168c: 0x063b, 0x168d: 0x1769, 0x168e: 0x1023, 0x168f: 0x102b, 0x1690: 0x1037, 0x1691: 0x063f,
+	0x1692: 0x176e, 0x1693: 0x105b, 0x1694: 0x1773, 0x1695: 0x1778, 0x1696: 0x107b, 0x1697: 0x1093,
+	0x1698: 0x0643, 0x1699: 0x109b, 0x169a: 0x109f, 0x169b: 0x10a3, 0x169c: 0x177d, 0x169d: 0x1782,
+	0x169e: 0x1782, 0x169f: 0x10bb, 0x16a0: 0x0647, 0x16a1: 0x1787, 0x16a2: 0x10cf, 0x16a3: 0x10d3,
+	0x16a4: 0x064b, 0x16a5: 0x178c, 0x16a6: 0x10ef, 0x16a7: 0x064f, 0x16a8: 0x10ff, 0x16a9: 0x10f7,
+	0x16aa: 0x1107, 0x16ab: 0x1796, 0x16ac: 0x111f, 0x16ad: 0x0653, 0x16ae: 0x112b, 0x16af: 0x1133,
+	0x16b0: 0x1143, 0x16b1: 0x0657, 0x16b2: 0x17a0, 0x16b3: 0x17a5, 0x16b4: 0x065b, 0x16b5: 0x17aa,
+	0x16b6: 0x115b, 0x16b7: 0x17af, 0x16b8: 0x1167, 0x16b9: 0x1173, 0x16ba: 0x117b, 0x16bb: 0x17b4,
+	0x16bc: 0x17b9, 0x16bd: 0x118f, 0x16be: 0x17be, 0x16bf: 0x1197,
+	// Block 0x5b, offset 0x16c0
+	0x16c0: 0x16ce, 0x16c1: 0x065f, 0x16c2: 0x11af, 0x16c3: 0x11b3, 0x16c4: 0x0667, 0x16c5: 0x11b7,
+	0x16c6: 0x0a33, 0x16c7: 0x17c3, 0x16c8: 0x17c8, 0x16c9: 0x16d3, 0x16ca: 0x16d8, 0x16cb: 0x11d7,
+	0x16cc: 0x11db, 0x16cd: 0x13f3, 0x16ce: 0x066b, 0x16cf: 0x1207, 0x16d0: 0x1203, 0x16d1: 0x120b,
+	0x16d2: 0x083f, 0x16d3: 0x120f, 0x16d4: 0x1213, 0x16d5: 0x1217, 0x16d6: 0x121f, 0x16d7: 0x17cd,
+	0x16d8: 0x121b, 0x16d9: 0x1223, 0x16da: 0x1237, 0x16db: 0x123b, 0x16dc: 0x1227, 0x16dd: 0x123f,
+	0x16de: 0x1253, 0x16df: 0x1267, 0x16e0: 0x1233, 0x16e1: 0x1247, 0x16e2: 0x124b, 0x16e3: 0x124f,
+	0x16e4: 0x17d2, 0x16e5: 0x17dc, 0x16e6: 0x17d7, 0x16e7: 0x066f, 0x16e8: 0x126f, 0x16e9: 0x1273,
+	0x16ea: 0x127b, 0x16eb: 0x17f0, 0x16ec: 0x127f, 0x16ed: 0x17e1, 0x16ee: 0x0673, 0x16ef: 0x0677,
+	0x16f0: 0x17e6, 0x16f1: 0x17eb, 0x16f2: 0x067b, 0x16f3: 0x129f, 0x16f4: 0x12a3, 0x16f5: 0x12a7,
+	0x16f6: 0x12ab, 0x16f7: 0x12b7, 0x16f8: 0x12b3, 0x16f9: 0x12bf, 0x16fa: 0x12bb, 0x16fb: 0x12cb,
+	0x16fc: 0x12c3, 0x16fd: 0x12c7, 0x16fe: 0x12cf, 0x16ff: 0x067f,
+	// Block 0x5c, offset 0x1700
+	0x1700: 0x12d7, 0x1701: 0x12db, 0x1702: 0x0683, 0x1703: 0x12eb, 0x1704: 0x12ef, 0x1705: 0x17f5,
+	0x1706: 0x12fb, 0x1707: 0x12ff, 0x1708: 0x0687, 0x1709: 0x130b, 0x170a: 0x05bb, 0x170b: 0x17fa,
+	0x170c: 0x17ff, 0x170d: 0x068b, 0x170e: 0x068f, 0x170f: 0x1337, 0x1710: 0x134f, 0x1711: 0x136b,
+	0x1712: 0x137b, 0x1713: 0x1804, 0x1714: 0x138f, 0x1715: 0x1393, 0x1716: 0x13ab, 0x1717: 0x13b7,
+	0x1718: 0x180e, 0x1719: 0x1660, 0x171a: 0x13c3, 0x171b: 0x13bf, 0x171c: 0x13cb, 0x171d: 0x1665,
+	0x171e: 0x13d7, 0x171f: 0x13e3, 0x1720: 0x1813, 0x1721: 0x1818, 0x1722: 0x1423, 0x1723: 0x142f,
+	0x1724: 0x1437, 0x1725: 0x181d, 0x1726: 0x143b, 0x1727: 0x1467, 0x1728: 0x1473, 0x1729: 0x1477,
+	0x172a: 0x146f, 0x172b: 0x1483, 0x172c: 0x1487, 0x172d: 0x1822, 0x172e: 0x1493, 0x172f: 0x0693,
+	0x1730: 0x149b, 0x1731: 0x1827, 0x1732: 0x0697, 0x1733: 0x14d3, 0x1734: 0x0ac3, 0x1735: 0x14eb,
+	0x1736: 0x182c, 0x1737: 0x1836, 0x1738: 0x069b, 0x1739: 0x069f, 0x173a: 0x1513, 0x173b: 0x183b,
+	0x173c: 0x06a3, 0x173d: 0x1840, 0x173e: 0x152b, 0x173f: 0x152b,
+	// Block 0x5d, offset 0x1740
+	0x1740: 0x1533, 0x1741: 0x1845, 0x1742: 0x154b, 0x1743: 0x06a7, 0x1744: 0x155b, 0x1745: 0x1567,
+	0x1746: 0x156f, 0x1747: 0x1577, 0x1748: 0x06ab, 0x1749: 0x184a, 0x174a: 0x158b, 0x174b: 0x15a7,
+	0x174c: 0x15b3, 0x174d: 0x06af, 0x174e: 0x06b3, 0x174f: 0x15b7, 0x1750: 0x184f, 0x1751: 0x06b7,
+	0x1752: 0x1854, 0x1753: 0x1859, 0x1754: 0x185e, 0x1755: 0x15db, 0x1756: 0x06bb, 0x1757: 0x15ef,
+	0x1758: 0x15f7, 0x1759: 0x15fb, 0x175a: 0x1603, 0x175b: 0x160b, 0x175c: 0x1613, 0x175d: 0x1868,
+}
+
+// nfkcIndex: 22 blocks, 1408 entries, 2816 bytes
+// Block 0 is the zero block.
+var nfkcIndex = [1408]uint16{
+	// Block 0x0, offset 0x0
+	// Block 0x1, offset 0x40
+	// Block 0x2, offset 0x80
+	// Block 0x3, offset 0xc0
+	0xc2: 0x5c, 0xc3: 0x01, 0xc4: 0x02, 0xc5: 0x03, 0xc6: 0x5d, 0xc7: 0x04,
+	0xc8: 0x05, 0xca: 0x5e, 0xcb: 0x5f, 0xcc: 0x06, 0xcd: 0x07, 0xce: 0x08, 0xcf: 0x09,
+	0xd0: 0x0a, 0xd1: 0x60, 0xd2: 0x61, 0xd3: 0x0b, 0xd6: 0x0c, 0xd7: 0x62,
+	0xd8: 0x63, 0xd9: 0x0d, 0xdb: 0x64, 0xdc: 0x65, 0xdd: 0x66, 0xdf: 0x67,
+	0xe0: 0x02, 0xe1: 0x03, 0xe2: 0x04, 0xe3: 0x05,
+	0xea: 0x06, 0xeb: 0x07, 0xec: 0x08, 0xed: 0x09, 0xef: 0x0a,
+	0xf0: 0x13,
+	// Block 0x4, offset 0x100
+	0x120: 0x68, 0x121: 0x69, 0x123: 0x0e, 0x124: 0x6a, 0x125: 0x6b, 0x126: 0x6c, 0x127: 0x6d,
+	0x128: 0x6e, 0x129: 0x6f, 0x12a: 0x70, 0x12b: 0x71, 0x12c: 0x6c, 0x12d: 0x72, 0x12e: 0x73, 0x12f: 0x74,
+	0x131: 0x75, 0x132: 0x76, 0x133: 0x77, 0x134: 0x78, 0x135: 0x79, 0x137: 0x7a,
+	0x138: 0x7b, 0x139: 0x7c, 0x13a: 0x7d, 0x13b: 0x7e, 0x13c: 0x7f, 0x13d: 0x80, 0x13e: 0x81, 0x13f: 0x82,
+	// Block 0x5, offset 0x140
+	0x140: 0x83, 0x142: 0x84, 0x143: 0x85, 0x144: 0x86, 0x145: 0x87, 0x146: 0x88, 0x147: 0x89,
+	0x14d: 0x8a,
+	0x15c: 0x8b, 0x15f: 0x8c,
+	0x162: 0x8d, 0x164: 0x8e,
+	0x168: 0x8f, 0x169: 0x90, 0x16a: 0x91, 0x16c: 0x0f, 0x16d: 0x92, 0x16e: 0x93, 0x16f: 0x94,
+	0x170: 0x95, 0x173: 0x96, 0x174: 0x97, 0x175: 0x10, 0x176: 0x11, 0x177: 0x12,
+	0x178: 0x13, 0x179: 0x14, 0x17a: 0x15, 0x17b: 0x16, 0x17c: 0x17, 0x17d: 0x18, 0x17e: 0x19, 0x17f: 0x1a,
+	// Block 0x6, offset 0x180
+	0x180: 0x98, 0x181: 0x99, 0x182: 0x9a, 0x183: 0x9b, 0x184: 0x1b, 0x185: 0x1c, 0x186: 0x9c, 0x187: 0x9d,
+	0x188: 0x9e, 0x189: 0x1d, 0x18a: 0x1e, 0x18b: 0x9f, 0x18c: 0xa0,
+	0x191: 0x1f, 0x192: 0x20, 0x193: 0xa1,
+	0x1a8: 0xa2, 0x1a9: 0xa3, 0x1ab: 0xa4,
+	0x1b1: 0xa5, 0x1b3: 0xa6, 0x1b5: 0xa7, 0x1b7: 0xa8,
+	0x1ba: 0xa9, 0x1bb: 0xaa, 0x1bc: 0x21, 0x1bd: 0x22, 0x1be: 0x23, 0x1bf: 0xab,
+	// Block 0x7, offset 0x1c0
+	0x1c0: 0xac, 0x1c1: 0x24, 0x1c2: 0x25, 0x1c3: 0x26, 0x1c4: 0xad, 0x1c5: 0x27, 0x1c6: 0x28,
+	0x1c8: 0x29, 0x1c9: 0x2a, 0x1ca: 0x2b, 0x1cb: 0x2c, 0x1cc: 0x2d, 0x1cd: 0x2e, 0x1ce: 0x2f, 0x1cf: 0x30,
+	// Block 0x8, offset 0x200
+	0x219: 0xae, 0x21a: 0xaf, 0x21b: 0xb0, 0x21d: 0xb1, 0x21f: 0xb2,
+	0x220: 0xb3, 0x223: 0xb4, 0x224: 0xb5, 0x225: 0xb6, 0x226: 0xb7, 0x227: 0xb8,
+	0x22a: 0xb9, 0x22b: 0xba, 0x22d: 0xbb, 0x22f: 0xbc,
+	0x230: 0xbd, 0x231: 0xbe, 0x232: 0xbf, 0x233: 0xc0, 0x234: 0xc1, 0x235: 0xc2, 0x236: 0xc3, 0x237: 0xbd,
+	0x238: 0xbe, 0x239: 0xbf, 0x23a: 0xc0, 0x23b: 0xc1, 0x23c: 0xc2, 0x23d: 0xc3, 0x23e: 0xbd, 0x23f: 0xbe,
+	// Block 0x9, offset 0x240
+	0x240: 0xbf, 0x241: 0xc0, 0x242: 0xc1, 0x243: 0xc2, 0x244: 0xc3, 0x245: 0xbd, 0x246: 0xbe, 0x247: 0xbf,
+	0x248: 0xc0, 0x249: 0xc1, 0x24a: 0xc2, 0x24b: 0xc3, 0x24c: 0xbd, 0x24d: 0xbe, 0x24e: 0xbf, 0x24f: 0xc0,
+	0x250: 0xc1, 0x251: 0xc2, 0x252: 0xc3, 0x253: 0xbd, 0x254: 0xbe, 0x255: 0xbf, 0x256: 0xc0, 0x257: 0xc1,
+	0x258: 0xc2, 0x259: 0xc3, 0x25a: 0xbd, 0x25b: 0xbe, 0x25c: 0xbf, 0x25d: 0xc0, 0x25e: 0xc1, 0x25f: 0xc2,
+	0x260: 0xc3, 0x261: 0xbd, 0x262: 0xbe, 0x263: 0xbf, 0x264: 0xc0, 0x265: 0xc1, 0x266: 0xc2, 0x267: 0xc3,
+	0x268: 0xbd, 0x269: 0xbe, 0x26a: 0xbf, 0x26b: 0xc0, 0x26c: 0xc1, 0x26d: 0xc2, 0x26e: 0xc3, 0x26f: 0xbd,
+	0x270: 0xbe, 0x271: 0xbf, 0x272: 0xc0, 0x273: 0xc1, 0x274: 0xc2, 0x275: 0xc3, 0x276: 0xbd, 0x277: 0xbe,
+	0x278: 0xbf, 0x279: 0xc0, 0x27a: 0xc1, 0x27b: 0xc2, 0x27c: 0xc3, 0x27d: 0xbd, 0x27e: 0xbe, 0x27f: 0xbf,
+	// Block 0xa, offset 0x280
+	0x280: 0xc0, 0x281: 0xc1, 0x282: 0xc2, 0x283: 0xc3, 0x284: 0xbd, 0x285: 0xbe, 0x286: 0xbf, 0x287: 0xc0,
+	0x288: 0xc1, 0x289: 0xc2, 0x28a: 0xc3, 0x28b: 0xbd, 0x28c: 0xbe, 0x28d: 0xbf, 0x28e: 0xc0, 0x28f: 0xc1,
+	0x290: 0xc2, 0x291: 0xc3, 0x292: 0xbd, 0x293: 0xbe, 0x294: 0xbf, 0x295: 0xc0, 0x296: 0xc1, 0x297: 0xc2,
+	0x298: 0xc3, 0x299: 0xbd, 0x29a: 0xbe, 0x29b: 0xbf, 0x29c: 0xc0, 0x29d: 0xc1, 0x29e: 0xc2, 0x29f: 0xc3,
+	0x2a0: 0xbd, 0x2a1: 0xbe, 0x2a2: 0xbf, 0x2a3: 0xc0, 0x2a4: 0xc1, 0x2a5: 0xc2, 0x2a6: 0xc3, 0x2a7: 0xbd,
+	0x2a8: 0xbe, 0x2a9: 0xbf, 0x2aa: 0xc0, 0x2ab: 0xc1, 0x2ac: 0xc2, 0x2ad: 0xc3, 0x2ae: 0xbd, 0x2af: 0xbe,
+	0x2b0: 0xbf, 0x2b1: 0xc0, 0x2b2: 0xc1, 0x2b3: 0xc2, 0x2b4: 0xc3, 0x2b5: 0xbd, 0x2b6: 0xbe, 0x2b7: 0xbf,
+	0x2b8: 0xc0, 0x2b9: 0xc1, 0x2ba: 0xc2, 0x2bb: 0xc3, 0x2bc: 0xbd, 0x2bd: 0xbe, 0x2be: 0xbf, 0x2bf: 0xc0,
+	// Block 0xb, offset 0x2c0
+	0x2c0: 0xc1, 0x2c1: 0xc2, 0x2c2: 0xc3, 0x2c3: 0xbd, 0x2c4: 0xbe, 0x2c5: 0xbf, 0x2c6: 0xc0, 0x2c7: 0xc1,
+	0x2c8: 0xc2, 0x2c9: 0xc3, 0x2ca: 0xbd, 0x2cb: 0xbe, 0x2cc: 0xbf, 0x2cd: 0xc0, 0x2ce: 0xc1, 0x2cf: 0xc2,
+	0x2d0: 0xc3, 0x2d1: 0xbd, 0x2d2: 0xbe, 0x2d3: 0xbf, 0x2d4: 0xc0, 0x2d5: 0xc1, 0x2d6: 0xc2, 0x2d7: 0xc3,
+	0x2d8: 0xbd, 0x2d9: 0xbe, 0x2da: 0xbf, 0x2db: 0xc0, 0x2dc: 0xc1, 0x2dd: 0xc2, 0x2de: 0xc4,
+	// Block 0xc, offset 0x300
+	0x324: 0x31, 0x325: 0x32, 0x326: 0x33, 0x327: 0x34,
+	0x328: 0x35, 0x329: 0x36, 0x32a: 0x37, 0x32b: 0x38, 0x32c: 0x39, 0x32d: 0x3a, 0x32e: 0x3b, 0x32f: 0x3c,
+	0x330: 0x3d, 0x331: 0x3e, 0x332: 0x3f, 0x333: 0x40, 0x334: 0x41, 0x335: 0x42, 0x336: 0x43, 0x337: 0x44,
+	0x338: 0x45, 0x339: 0x46, 0x33a: 0x47, 0x33b: 0x48, 0x33c: 0xc5, 0x33d: 0x49, 0x33e: 0x4a, 0x33f: 0x4b,
+	// Block 0xd, offset 0x340
+	0x347: 0xc6,
+	0x34b: 0xc7, 0x34d: 0xc8,
+	0x368: 0xc9, 0x36b: 0xca,
+	0x374: 0xcb,
+	0x37d: 0xcc,
+	// Block 0xe, offset 0x380
+	0x381: 0xcd, 0x382: 0xce, 0x384: 0xcf, 0x385: 0xb7, 0x387: 0xd0,
+	0x388: 0xd1, 0x38b: 0xd2, 0x38c: 0xd3, 0x38d: 0xd4,
+	0x391: 0xd5, 0x392: 0xd6, 0x393: 0xd7, 0x396: 0xd8, 0x397: 0xd9,
+	0x398: 0xda, 0x39a: 0xdb, 0x39c: 0xdc,
+	0x3a0: 0xdd, 0x3a7: 0xde,
+	0x3a8: 0xdf, 0x3a9: 0xe0, 0x3aa: 0xe1,
+	0x3b0: 0xda, 0x3b5: 0xe2, 0x3b6: 0xe3,
+	// Block 0xf, offset 0x3c0
+	0x3eb: 0xe4, 0x3ec: 0xe5,
+	// Block 0x10, offset 0x400
+	0x432: 0xe6,
+	// Block 0x11, offset 0x440
+	0x445: 0xe7, 0x446: 0xe8, 0x447: 0xe9,
+	0x449: 0xea,
+	0x450: 0xeb, 0x451: 0xec, 0x452: 0xed, 0x453: 0xee, 0x454: 0xef, 0x455: 0xf0, 0x456: 0xf1, 0x457: 0xf2,
+	0x458: 0xf3, 0x459: 0xf4, 0x45a: 0x4c, 0x45b: 0xf5, 0x45c: 0xf6, 0x45d: 0xf7, 0x45e: 0xf8, 0x45f: 0x4d,
+	// Block 0x12, offset 0x480
+	0x480: 0xf9, 0x484: 0xe5,
+	0x48b: 0xfa,
+	0x4a3: 0xfb, 0x4a5: 0xfc,
+	0x4b8: 0x4e, 0x4b9: 0x4f, 0x4ba: 0x50,
+	// Block 0x13, offset 0x4c0
+	0x4c4: 0x51, 0x4c5: 0xfd, 0x4c6: 0xfe,
+	0x4c8: 0x52, 0x4c9: 0xff,
+	// Block 0x14, offset 0x500
+	0x520: 0x53, 0x521: 0x54, 0x522: 0x55, 0x523: 0x56, 0x524: 0x57, 0x525: 0x58, 0x526: 0x59, 0x527: 0x5a,
+	0x528: 0x5b,
+	// Block 0x15, offset 0x540
+	0x550: 0x0b, 0x551: 0x0c, 0x556: 0x0d,
+	0x55b: 0x0e, 0x55d: 0x0f, 0x55e: 0x10, 0x55f: 0x11,
+	0x56f: 0x12,
+}
+
+// nfkcSparseOffset: 164 entries, 328 bytes
+var nfkcSparseOffset = []uint16{0x0, 0xe, 0x12, 0x1b, 0x25, 0x35, 0x37, 0x3c, 0x47, 0x56, 0x63, 0x6b, 0x70, 0x75, 0x77, 0x7f, 0x86, 0x89, 0x91, 0x95, 0x99, 0x9b, 0x9d, 0xa6, 0xaa, 0xb1, 0xb6, 0xb9, 0xc3, 0xc6, 0xcd, 0xd5, 0xd9, 0xdb, 0xdf, 0xe3, 0xe9, 0xfa, 0x106, 0x108, 0x10e, 0x110, 0x112, 0x114, 0x116, 0x118, 0x11a, 0x11c, 0x11f, 0x122, 0x124, 0x127, 0x12a, 0x12e, 0x133, 0x13c, 0x13e, 0x141, 0x143, 0x14e, 0x159, 0x167, 0x175, 0x185, 0x193, 0x19a, 0x1a0, 0x1af, 0x1b3, 0x1b5, 0x1b9, 0x1bb, 0x1be, 0x1c0, 0x1c3, 0x1c5, 0x1c8, 0x1ca, 0x1cc, 0x1ce, 0x1da, 0x1e4, 0x1ee, 0x1f1, 0x1f5, 0x1f7, 0x1f9, 0x1fb, 0x1fd, 0x200, 0x202, 0x204, 0x206, 0x208, 0x20e, 0x211, 0x215, 0x217, 0x21e, 0x224, 0x22a, 0x232, 0x238, 0x23e, 0x244, 0x248, 0x24a, 0x24c, 0x24e, 0x250, 0x256, 0x259, 0x25b, 0x261, 0x264, 0x26c, 0x273, 0x276, 0x279, 0x27b, 0x27e, 0x286, 0x28a, 0x291, 0x294, 0x29a, 0x29c, 0x29e, 0x2a1, 0x2a3, 0x2a6, 0x2a8, 0x2aa, 0x2ac, 0x2ae, 0x2b1, 0x2b3, 0x2b5, 0x2b7, 0x2b9, 0x2c6, 0x2d0, 0x2d2, 0x2d4, 0x2d8, 0x2dd, 0x2e9, 0x2ee, 0x2f7, 0x2fd, 0x302, 0x306, 0x30b, 0x30f, 0x31f, 0x32d, 0x33b, 0x349, 0x34f, 0x351, 0x353, 0x356, 0x361, 0x363}
+
+// nfkcSparseValues: 877 entries, 3508 bytes
+var nfkcSparseValues = [877]valueRange{
+	// Block 0x0, offset 0x0
+	{value: 0x0002, lo: 0x0d},
+	{value: 0x0001, lo: 0xa0, hi: 0xa0},
+	{value: 0x427b, lo: 0xa8, hi: 0xa8},
+	{value: 0x0083, lo: 0xaa, hi: 0xaa},
+	{value: 0x4267, lo: 0xaf, hi: 0xaf},
+	{value: 0x0025, lo: 0xb2, hi: 0xb3},
+	{value: 0x425d, lo: 0xb4, hi: 0xb4},
+	{value: 0x01dc, lo: 0xb5, hi: 0xb5},
+	{value: 0x4294, lo: 0xb8, hi: 0xb8},
+	{value: 0x0023, lo: 0xb9, hi: 0xb9},
+	{value: 0x009f, lo: 0xba, hi: 0xba},
+	{value: 0x221f, lo: 0xbc, hi: 0xbc},
+	{value: 0x2213, lo: 0xbd, hi: 0xbd},
+	{value: 0x22b5, lo: 0xbe, hi: 0xbe},
+	// Block 0x1, offset 0xe
+	{value: 0x0091, lo: 0x03},
+	{value: 0x46e5, lo: 0xa0, hi: 0xa1},
+	{value: 0x4717, lo: 0xaf, hi: 0xb0},
+	{value: 0xa000, lo: 0xb7, hi: 0xb7},
+	// Block 0x2, offset 0x12
+	{value: 0x0003, lo: 0x08},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	{value: 0x0091, lo: 0xb0, hi: 0xb0},
+	{value: 0x0119, lo: 0xb1, hi: 0xb1},
+	{value: 0x0095, lo: 0xb2, hi: 0xb2},
+	{value: 0x00a5, lo: 0xb3, hi: 0xb3},
+	{value: 0x0143, lo: 0xb4, hi: 0xb6},
+	{value: 0x00af, lo: 0xb7, hi: 0xb7},
+	{value: 0x00b3, lo: 0xb8, hi: 0xb8},
+	// Block 0x3, offset 0x1b
+	{value: 0x000a, lo: 0x09},
+	{value: 0x4271, lo: 0x98, hi: 0x98},
+	{value: 0x4276, lo: 0x99, hi: 0x9a},
+	{value: 0x4299, lo: 0x9b, hi: 0x9b},
+	{value: 0x4262, lo: 0x9c, hi: 0x9c},
+	{value: 0x4285, lo: 0x9d, hi: 0x9d},
+	{value: 0x0113, lo: 0xa0, hi: 0xa0},
+	{value: 0x0099, lo: 0xa1, hi: 0xa1},
+	{value: 0x00a7, lo: 0xa2, hi: 0xa3},
+	{value: 0x0167, lo: 0xa4, hi: 0xa4},
+	// Block 0x4, offset 0x25
+	{value: 0x0000, lo: 0x0f},
+	{value: 0xa000, lo: 0x83, hi: 0x83},
+	{value: 0xa000, lo: 0x87, hi: 0x87},
+	{value: 0xa000, lo: 0x8b, hi: 0x8b},
+	{value: 0xa000, lo: 0x8d, hi: 0x8d},
+	{value: 0x37a8, lo: 0x90, hi: 0x90},
+	{value: 0x37b4, lo: 0x91, hi: 0x91},
+	{value: 0x37a2, lo: 0x93, hi: 0x93},
+	{value: 0xa000, lo: 0x96, hi: 0x96},
+	{value: 0x381a, lo: 0x97, hi: 0x97},
+	{value: 0x37e4, lo: 0x9c, hi: 0x9c},
+	{value: 0x37cc, lo: 0x9d, hi: 0x9d},
+	{value: 0x37f6, lo: 0x9e, hi: 0x9e},
+	{value: 0xa000, lo: 0xb4, hi: 0xb5},
+	{value: 0x3820, lo: 0xb6, hi: 0xb6},
+	{value: 0x3826, lo: 0xb7, hi: 0xb7},
+	// Block 0x5, offset 0x35
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0x83, hi: 0x87},
+	// Block 0x6, offset 0x37
+	{value: 0x0001, lo: 0x04},
+	{value: 0x8113, lo: 0x81, hi: 0x82},
+	{value: 0x8132, lo: 0x84, hi: 0x84},
+	{value: 0x812d, lo: 0x85, hi: 0x85},
+	{value: 0x810d, lo: 0x87, hi: 0x87},
+	// Block 0x7, offset 0x3c
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x8132, lo: 0x90, hi: 0x97},
+	{value: 0x8119, lo: 0x98, hi: 0x98},
+	{value: 0x811a, lo: 0x99, hi: 0x99},
+	{value: 0x811b, lo: 0x9a, hi: 0x9a},
+	{value: 0x3844, lo: 0xa2, hi: 0xa2},
+	{value: 0x384a, lo: 0xa3, hi: 0xa3},
+	{value: 0x3856, lo: 0xa4, hi: 0xa4},
+	{value: 0x3850, lo: 0xa5, hi: 0xa5},
+	{value: 0x385c, lo: 0xa6, hi: 0xa6},
+	{value: 0xa000, lo: 0xa7, hi: 0xa7},
+	// Block 0x8, offset 0x47
+	{value: 0x0000, lo: 0x0e},
+	{value: 0x386e, lo: 0x80, hi: 0x80},
+	{value: 0xa000, lo: 0x81, hi: 0x81},
+	{value: 0x3862, lo: 0x82, hi: 0x82},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	{value: 0x3868, lo: 0x93, hi: 0x93},
+	{value: 0xa000, lo: 0x95, hi: 0x95},
+	{value: 0x8132, lo: 0x96, hi: 0x9c},
+	{value: 0x8132, lo: 0x9f, hi: 0xa2},
+	{value: 0x812d, lo: 0xa3, hi: 0xa3},
+	{value: 0x8132, lo: 0xa4, hi: 0xa4},
+	{value: 0x8132, lo: 0xa7, hi: 0xa8},
+	{value: 0x812d, lo: 0xaa, hi: 0xaa},
+	{value: 0x8132, lo: 0xab, hi: 0xac},
+	{value: 0x812d, lo: 0xad, hi: 0xad},
+	// Block 0x9, offset 0x56
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x811f, lo: 0x91, hi: 0x91},
+	{value: 0x8132, lo: 0xb0, hi: 0xb0},
+	{value: 0x812d, lo: 0xb1, hi: 0xb1},
+	{value: 0x8132, lo: 0xb2, hi: 0xb3},
+	{value: 0x812d, lo: 0xb4, hi: 0xb4},
+	{value: 0x8132, lo: 0xb5, hi: 0xb6},
+	{value: 0x812d, lo: 0xb7, hi: 0xb9},
+	{value: 0x8132, lo: 0xba, hi: 0xba},
+	{value: 0x812d, lo: 0xbb, hi: 0xbc},
+	{value: 0x8132, lo: 0xbd, hi: 0xbd},
+	{value: 0x812d, lo: 0xbe, hi: 0xbe},
+	{value: 0x8132, lo: 0xbf, hi: 0xbf},
+	// Block 0xa, offset 0x63
+	{value: 0x0005, lo: 0x07},
+	{value: 0x8132, lo: 0x80, hi: 0x80},
+	{value: 0x8132, lo: 0x81, hi: 0x81},
+	{value: 0x812d, lo: 0x82, hi: 0x83},
+	{value: 0x812d, lo: 0x84, hi: 0x85},
+	{value: 0x812d, lo: 0x86, hi: 0x87},
+	{value: 0x812d, lo: 0x88, hi: 0x89},
+	{value: 0x8132, lo: 0x8a, hi: 0x8a},
+	// Block 0xb, offset 0x6b
+	{value: 0x0000, lo: 0x04},
+	{value: 0x8132, lo: 0xab, hi: 0xb1},
+	{value: 0x812d, lo: 0xb2, hi: 0xb2},
+	{value: 0x8132, lo: 0xb3, hi: 0xb3},
+	{value: 0x812d, lo: 0xbd, hi: 0xbd},
+	// Block 0xc, offset 0x70
+	{value: 0x0000, lo: 0x04},
+	{value: 0x8132, lo: 0x96, hi: 0x99},
+	{value: 0x8132, lo: 0x9b, hi: 0xa3},
+	{value: 0x8132, lo: 0xa5, hi: 0xa7},
+	{value: 0x8132, lo: 0xa9, hi: 0xad},
+	// Block 0xd, offset 0x75
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0x99, hi: 0x9b},
+	// Block 0xe, offset 0x77
+	{value: 0x0000, lo: 0x07},
+	{value: 0xa000, lo: 0xa8, hi: 0xa8},
+	{value: 0x3edb, lo: 0xa9, hi: 0xa9},
+	{value: 0xa000, lo: 0xb0, hi: 0xb0},
+	{value: 0x3ee3, lo: 0xb1, hi: 0xb1},
+	{value: 0xa000, lo: 0xb3, hi: 0xb3},
+	{value: 0x3eeb, lo: 0xb4, hi: 0xb4},
+	{value: 0x9902, lo: 0xbc, hi: 0xbc},
+	// Block 0xf, offset 0x7f
+	{value: 0x0008, lo: 0x06},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x8132, lo: 0x91, hi: 0x91},
+	{value: 0x812d, lo: 0x92, hi: 0x92},
+	{value: 0x8132, lo: 0x93, hi: 0x93},
+	{value: 0x8132, lo: 0x94, hi: 0x94},
+	{value: 0x451f, lo: 0x98, hi: 0x9f},
+	// Block 0x10, offset 0x86
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8102, lo: 0xbc, hi: 0xbc},
+	{value: 0x9900, lo: 0xbe, hi: 0xbe},
+	// Block 0x11, offset 0x89
+	{value: 0x0008, lo: 0x07},
+	{value: 0xa000, lo: 0x87, hi: 0x87},
+	{value: 0x2ca1, lo: 0x8b, hi: 0x8c},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x97, hi: 0x97},
+	{value: 0x455f, lo: 0x9c, hi: 0x9d},
+	{value: 0x456f, lo: 0x9f, hi: 0x9f},
+	{value: 0x8132, lo: 0xbe, hi: 0xbe},
+	// Block 0x12, offset 0x91
+	{value: 0x0000, lo: 0x03},
+	{value: 0x4597, lo: 0xb3, hi: 0xb3},
+	{value: 0x459f, lo: 0xb6, hi: 0xb6},
+	{value: 0x8102, lo: 0xbc, hi: 0xbc},
+	// Block 0x13, offset 0x95
+	{value: 0x0008, lo: 0x03},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x4577, lo: 0x99, hi: 0x9b},
+	{value: 0x458f, lo: 0x9e, hi: 0x9e},
+	// Block 0x14, offset 0x99
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8102, lo: 0xbc, hi: 0xbc},
+	// Block 0x15, offset 0x9b
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	// Block 0x16, offset 0x9d
+	{value: 0x0000, lo: 0x08},
+	{value: 0xa000, lo: 0x87, hi: 0x87},
+	{value: 0x2cb9, lo: 0x88, hi: 0x88},
+	{value: 0x2cb1, lo: 0x8b, hi: 0x8b},
+	{value: 0x2cc1, lo: 0x8c, hi: 0x8c},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x96, hi: 0x97},
+	{value: 0x45a7, lo: 0x9c, hi: 0x9c},
+	{value: 0x45af, lo: 0x9d, hi: 0x9d},
+	// Block 0x17, offset 0xa6
+	{value: 0x0000, lo: 0x03},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	{value: 0x2cc9, lo: 0x94, hi: 0x94},
+	{value: 0x9900, lo: 0xbe, hi: 0xbe},
+	// Block 0x18, offset 0xaa
+	{value: 0x0000, lo: 0x06},
+	{value: 0xa000, lo: 0x86, hi: 0x87},
+	{value: 0x2cd1, lo: 0x8a, hi: 0x8a},
+	{value: 0x2ce1, lo: 0x8b, hi: 0x8b},
+	{value: 0x2cd9, lo: 0x8c, hi: 0x8c},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x97, hi: 0x97},
+	// Block 0x19, offset 0xb1
+	{value: 0x1801, lo: 0x04},
+	{value: 0xa000, lo: 0x86, hi: 0x86},
+	{value: 0x3ef3, lo: 0x88, hi: 0x88},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x8120, lo: 0x95, hi: 0x96},
+	// Block 0x1a, offset 0xb6
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8102, lo: 0xbc, hi: 0xbc},
+	{value: 0xa000, lo: 0xbf, hi: 0xbf},
+	// Block 0x1b, offset 0xb9
+	{value: 0x0000, lo: 0x09},
+	{value: 0x2ce9, lo: 0x80, hi: 0x80},
+	{value: 0x9900, lo: 0x82, hi: 0x82},
+	{value: 0xa000, lo: 0x86, hi: 0x86},
+	{value: 0x2cf1, lo: 0x87, hi: 0x87},
+	{value: 0x2cf9, lo: 0x88, hi: 0x88},
+	{value: 0x2f53, lo: 0x8a, hi: 0x8a},
+	{value: 0x2ddb, lo: 0x8b, hi: 0x8b},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x95, hi: 0x96},
+	// Block 0x1c, offset 0xc3
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0xbb, hi: 0xbc},
+	{value: 0x9900, lo: 0xbe, hi: 0xbe},
+	// Block 0x1d, offset 0xc6
+	{value: 0x0000, lo: 0x06},
+	{value: 0xa000, lo: 0x86, hi: 0x87},
+	{value: 0x2d01, lo: 0x8a, hi: 0x8a},
+	{value: 0x2d11, lo: 0x8b, hi: 0x8b},
+	{value: 0x2d09, lo: 0x8c, hi: 0x8c},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x97, hi: 0x97},
+	// Block 0x1e, offset 0xcd
+	{value: 0x6be7, lo: 0x07},
+	{value: 0x9904, lo: 0x8a, hi: 0x8a},
+	{value: 0x9900, lo: 0x8f, hi: 0x8f},
+	{value: 0xa000, lo: 0x99, hi: 0x99},
+	{value: 0x3efb, lo: 0x9a, hi: 0x9a},
+	{value: 0x2f5b, lo: 0x9c, hi: 0x9c},
+	{value: 0x2de6, lo: 0x9d, hi: 0x9d},
+	{value: 0x2d19, lo: 0x9e, hi: 0x9f},
+	// Block 0x1f, offset 0xd5
+	{value: 0x0000, lo: 0x03},
+	{value: 0x2624, lo: 0xb3, hi: 0xb3},
+	{value: 0x8122, lo: 0xb8, hi: 0xb9},
+	{value: 0x8104, lo: 0xba, hi: 0xba},
+	// Block 0x20, offset 0xd9
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8123, lo: 0x88, hi: 0x8b},
+	// Block 0x21, offset 0xdb
+	{value: 0x0000, lo: 0x03},
+	{value: 0x2639, lo: 0xb3, hi: 0xb3},
+	{value: 0x8124, lo: 0xb8, hi: 0xb9},
+	{value: 0x8104, lo: 0xba, hi: 0xba},
+	// Block 0x22, offset 0xdf
+	{value: 0x0000, lo: 0x03},
+	{value: 0x8125, lo: 0x88, hi: 0x8b},
+	{value: 0x262b, lo: 0x9c, hi: 0x9c},
+	{value: 0x2632, lo: 0x9d, hi: 0x9d},
+	// Block 0x23, offset 0xe3
+	{value: 0x0000, lo: 0x05},
+	{value: 0x030b, lo: 0x8c, hi: 0x8c},
+	{value: 0x812d, lo: 0x98, hi: 0x99},
+	{value: 0x812d, lo: 0xb5, hi: 0xb5},
+	{value: 0x812d, lo: 0xb7, hi: 0xb7},
+	{value: 0x812b, lo: 0xb9, hi: 0xb9},
+	// Block 0x24, offset 0xe9
+	{value: 0x0000, lo: 0x10},
+	{value: 0x2647, lo: 0x83, hi: 0x83},
+	{value: 0x264e, lo: 0x8d, hi: 0x8d},
+	{value: 0x2655, lo: 0x92, hi: 0x92},
+	{value: 0x265c, lo: 0x97, hi: 0x97},
+	{value: 0x2663, lo: 0x9c, hi: 0x9c},
+	{value: 0x2640, lo: 0xa9, hi: 0xa9},
+	{value: 0x8126, lo: 0xb1, hi: 0xb1},
+	{value: 0x8127, lo: 0xb2, hi: 0xb2},
+	{value: 0x4a87, lo: 0xb3, hi: 0xb3},
+	{value: 0x8128, lo: 0xb4, hi: 0xb4},
+	{value: 0x4a90, lo: 0xb5, hi: 0xb5},
+	{value: 0x45b7, lo: 0xb6, hi: 0xb6},
+	{value: 0x45f7, lo: 0xb7, hi: 0xb7},
+	{value: 0x45bf, lo: 0xb8, hi: 0xb8},
+	{value: 0x4602, lo: 0xb9, hi: 0xb9},
+	{value: 0x8127, lo: 0xba, hi: 0xbd},
+	// Block 0x25, offset 0xfa
+	{value: 0x0000, lo: 0x0b},
+	{value: 0x8127, lo: 0x80, hi: 0x80},
+	{value: 0x4a99, lo: 0x81, hi: 0x81},
+	{value: 0x8132, lo: 0x82, hi: 0x83},
+	{value: 0x8104, lo: 0x84, hi: 0x84},
+	{value: 0x8132, lo: 0x86, hi: 0x87},
+	{value: 0x2671, lo: 0x93, hi: 0x93},
+	{value: 0x2678, lo: 0x9d, hi: 0x9d},
+	{value: 0x267f, lo: 0xa2, hi: 0xa2},
+	{value: 0x2686, lo: 0xa7, hi: 0xa7},
+	{value: 0x268d, lo: 0xac, hi: 0xac},
+	{value: 0x266a, lo: 0xb9, hi: 0xb9},
+	// Block 0x26, offset 0x106
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0x86, hi: 0x86},
+	// Block 0x27, offset 0x108
+	{value: 0x0000, lo: 0x05},
+	{value: 0xa000, lo: 0xa5, hi: 0xa5},
+	{value: 0x2d21, lo: 0xa6, hi: 0xa6},
+	{value: 0x9900, lo: 0xae, hi: 0xae},
+	{value: 0x8102, lo: 0xb7, hi: 0xb7},
+	{value: 0x8104, lo: 0xb9, hi: 0xba},
+	// Block 0x28, offset 0x10e
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0x8d, hi: 0x8d},
+	// Block 0x29, offset 0x110
+	{value: 0x0000, lo: 0x01},
+	{value: 0x030f, lo: 0xbc, hi: 0xbc},
+	// Block 0x2a, offset 0x112
+	{value: 0x0000, lo: 0x01},
+	{value: 0xa000, lo: 0x80, hi: 0x92},
+	// Block 0x2b, offset 0x114
+	{value: 0x0000, lo: 0x01},
+	{value: 0xb900, lo: 0xa1, hi: 0xb5},
+	// Block 0x2c, offset 0x116
+	{value: 0x0000, lo: 0x01},
+	{value: 0x9900, lo: 0xa8, hi: 0xbf},
+	// Block 0x2d, offset 0x118
+	{value: 0x0000, lo: 0x01},
+	{value: 0x9900, lo: 0x80, hi: 0x82},
+	// Block 0x2e, offset 0x11a
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0x9d, hi: 0x9f},
+	// Block 0x2f, offset 0x11c
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x94, hi: 0x94},
+	{value: 0x8104, lo: 0xb4, hi: 0xb4},
+	// Block 0x30, offset 0x11f
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x92, hi: 0x92},
+	{value: 0x8132, lo: 0x9d, hi: 0x9d},
+	// Block 0x31, offset 0x122
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8131, lo: 0xa9, hi: 0xa9},
+	// Block 0x32, offset 0x124
+	{value: 0x0004, lo: 0x02},
+	{value: 0x812e, lo: 0xb9, hi: 0xba},
+	{value: 0x812d, lo: 0xbb, hi: 0xbb},
+	// Block 0x33, offset 0x127
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8132, lo: 0x97, hi: 0x97},
+	{value: 0x812d, lo: 0x98, hi: 0x98},
+	// Block 0x34, offset 0x12a
+	{value: 0x0000, lo: 0x03},
+	{value: 0x8104, lo: 0xa0, hi: 0xa0},
+	{value: 0x8132, lo: 0xb5, hi: 0xbc},
+	{value: 0x812d, lo: 0xbf, hi: 0xbf},
+	// Block 0x35, offset 0x12e
+	{value: 0x0000, lo: 0x04},
+	{value: 0x8132, lo: 0xb0, hi: 0xb4},
+	{value: 0x812d, lo: 0xb5, hi: 0xba},
+	{value: 0x8132, lo: 0xbb, hi: 0xbc},
+	{value: 0x812d, lo: 0xbd, hi: 0xbd},
+	// Block 0x36, offset 0x133
+	{value: 0x0000, lo: 0x08},
+	{value: 0x2d69, lo: 0x80, hi: 0x80},
+	{value: 0x2d71, lo: 0x81, hi: 0x81},
+	{value: 0xa000, lo: 0x82, hi: 0x82},
+	{value: 0x2d79, lo: 0x83, hi: 0x83},
+	{value: 0x8104, lo: 0x84, hi: 0x84},
+	{value: 0x8132, lo: 0xab, hi: 0xab},
+	{value: 0x812d, lo: 0xac, hi: 0xac},
+	{value: 0x8132, lo: 0xad, hi: 0xb3},
+	// Block 0x37, offset 0x13c
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xaa, hi: 0xab},
+	// Block 0x38, offset 0x13e
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8102, lo: 0xa6, hi: 0xa6},
+	{value: 0x8104, lo: 0xb2, hi: 0xb3},
+	// Block 0x39, offset 0x141
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8102, lo: 0xb7, hi: 0xb7},
+	// Block 0x3a, offset 0x143
+	{value: 0x0000, lo: 0x0a},
+	{value: 0x8132, lo: 0x90, hi: 0x92},
+	{value: 0x8101, lo: 0x94, hi: 0x94},
+	{value: 0x812d, lo: 0x95, hi: 0x99},
+	{value: 0x8132, lo: 0x9a, hi: 0x9b},
+	{value: 0x812d, lo: 0x9c, hi: 0x9f},
+	{value: 0x8132, lo: 0xa0, hi: 0xa0},
+	{value: 0x8101, lo: 0xa2, hi: 0xa8},
+	{value: 0x812d, lo: 0xad, hi: 0xad},
+	{value: 0x8132, lo: 0xb4, hi: 0xb4},
+	{value: 0x8132, lo: 0xb8, hi: 0xb9},
+	// Block 0x3b, offset 0x14e
+	{value: 0x0002, lo: 0x0a},
+	{value: 0x0043, lo: 0xac, hi: 0xac},
+	{value: 0x00d1, lo: 0xad, hi: 0xad},
+	{value: 0x0045, lo: 0xae, hi: 0xae},
+	{value: 0x0049, lo: 0xb0, hi: 0xb1},
+	{value: 0x00e6, lo: 0xb2, hi: 0xb2},
+	{value: 0x004f, lo: 0xb3, hi: 0xba},
+	{value: 0x005f, lo: 0xbc, hi: 0xbc},
+	{value: 0x00ef, lo: 0xbd, hi: 0xbd},
+	{value: 0x0061, lo: 0xbe, hi: 0xbe},
+	{value: 0x0065, lo: 0xbf, hi: 0xbf},
+	// Block 0x3c, offset 0x159
+	{value: 0x0000, lo: 0x0d},
+	{value: 0x0001, lo: 0x80, hi: 0x8a},
+	{value: 0x043b, lo: 0x91, hi: 0x91},
+	{value: 0x429e, lo: 0x97, hi: 0x97},
+	{value: 0x001d, lo: 0xa4, hi: 0xa4},
+	{value: 0x1873, lo: 0xa5, hi: 0xa5},
+	{value: 0x1b5f, lo: 0xa6, hi: 0xa6},
+	{value: 0x0001, lo: 0xaf, hi: 0xaf},
+	{value: 0x2694, lo: 0xb3, hi: 0xb3},
+	{value: 0x2801, lo: 0xb4, hi: 0xb4},
+	{value: 0x269b, lo: 0xb6, hi: 0xb6},
+	{value: 0x280b, lo: 0xb7, hi: 0xb7},
+	{value: 0x186d, lo: 0xbc, hi: 0xbc},
+	{value: 0x426c, lo: 0xbe, hi: 0xbe},
+	// Block 0x3d, offset 0x167
+	{value: 0x0002, lo: 0x0d},
+	{value: 0x1933, lo: 0x87, hi: 0x87},
+	{value: 0x1930, lo: 0x88, hi: 0x88},
+	{value: 0x1870, lo: 0x89, hi: 0x89},
+	{value: 0x2991, lo: 0x97, hi: 0x97},
+	{value: 0x0001, lo: 0x9f, hi: 0x9f},
+	{value: 0x0021, lo: 0xb0, hi: 0xb0},
+	{value: 0x0093, lo: 0xb1, hi: 0xb1},
+	{value: 0x0029, lo: 0xb4, hi: 0xb9},
+	{value: 0x0017, lo: 0xba, hi: 0xba},
+	{value: 0x0467, lo: 0xbb, hi: 0xbb},
+	{value: 0x003b, lo: 0xbc, hi: 0xbc},
+	{value: 0x0011, lo: 0xbd, hi: 0xbe},
+	{value: 0x009d, lo: 0xbf, hi: 0xbf},
+	// Block 0x3e, offset 0x175
+	{value: 0x0002, lo: 0x0f},
+	{value: 0x0021, lo: 0x80, hi: 0x89},
+	{value: 0x0017, lo: 0x8a, hi: 0x8a},
+	{value: 0x0467, lo: 0x8b, hi: 0x8b},
+	{value: 0x003b, lo: 0x8c, hi: 0x8c},
+	{value: 0x0011, lo: 0x8d, hi: 0x8e},
+	{value: 0x0083, lo: 0x90, hi: 0x90},
+	{value: 0x008b, lo: 0x91, hi: 0x91},
+	{value: 0x009f, lo: 0x92, hi: 0x92},
+	{value: 0x00b1, lo: 0x93, hi: 0x93},
+	{value: 0x0104, lo: 0x94, hi: 0x94},
+	{value: 0x0091, lo: 0x95, hi: 0x95},
+	{value: 0x0097, lo: 0x96, hi: 0x99},
+	{value: 0x00a1, lo: 0x9a, hi: 0x9a},
+	{value: 0x00a7, lo: 0x9b, hi: 0x9c},
+	{value: 0x199c, lo: 0xa8, hi: 0xa8},
+	// Block 0x3f, offset 0x185
+	{value: 0x0000, lo: 0x0d},
+	{value: 0x8132, lo: 0x90, hi: 0x91},
+	{value: 0x8101, lo: 0x92, hi: 0x93},
+	{value: 0x8132, lo: 0x94, hi: 0x97},
+	{value: 0x8101, lo: 0x98, hi: 0x9a},
+	{value: 0x8132, lo: 0x9b, hi: 0x9c},
+	{value: 0x8132, lo: 0xa1, hi: 0xa1},
+	{value: 0x8101, lo: 0xa5, hi: 0xa6},
+	{value: 0x8132, lo: 0xa7, hi: 0xa7},
+	{value: 0x812d, lo: 0xa8, hi: 0xa8},
+	{value: 0x8132, lo: 0xa9, hi: 0xa9},
+	{value: 0x8101, lo: 0xaa, hi: 0xab},
+	{value: 0x812d, lo: 0xac, hi: 0xaf},
+	{value: 0x8132, lo: 0xb0, hi: 0xb0},
+	// Block 0x40, offset 0x193
+	{value: 0x0007, lo: 0x06},
+	{value: 0x2183, lo: 0x89, hi: 0x89},
+	{value: 0xa000, lo: 0x90, hi: 0x90},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	{value: 0xa000, lo: 0x94, hi: 0x94},
+	{value: 0x3bbc, lo: 0x9a, hi: 0x9b},
+	{value: 0x3bca, lo: 0xae, hi: 0xae},
+	// Block 0x41, offset 0x19a
+	{value: 0x000e, lo: 0x05},
+	{value: 0x3bd1, lo: 0x8d, hi: 0x8e},
+	{value: 0x3bd8, lo: 0x8f, hi: 0x8f},
+	{value: 0xa000, lo: 0x90, hi: 0x90},
+	{value: 0xa000, lo: 0x92, hi: 0x92},
+	{value: 0xa000, lo: 0x94, hi: 0x94},
+	// Block 0x42, offset 0x1a0
+	{value: 0x0173, lo: 0x0e},
+	{value: 0xa000, lo: 0x83, hi: 0x83},
+	{value: 0x3be6, lo: 0x84, hi: 0x84},
+	{value: 0xa000, lo: 0x88, hi: 0x88},
+	{value: 0x3bed, lo: 0x89, hi: 0x89},
+	{value: 0xa000, lo: 0x8b, hi: 0x8b},
+	{value: 0x3bf4, lo: 0x8c, hi: 0x8c},
+	{value: 0xa000, lo: 0xa3, hi: 0xa3},
+	{value: 0x3bfb, lo: 0xa4, hi: 0xa4},
+	{value: 0xa000, lo: 0xa5, hi: 0xa5},
+	{value: 0x3c02, lo: 0xa6, hi: 0xa6},
+	{value: 0x26a2, lo: 0xac, hi: 0xad},
+	{value: 0x26a9, lo: 0xaf, hi: 0xaf},
+	{value: 0x281f, lo: 0xb0, hi: 0xb0},
+	{value: 0xa000, lo: 0xbc, hi: 0xbc},
+	// Block 0x43, offset 0x1af
+	{value: 0x0007, lo: 0x03},
+	{value: 0x3c6b, lo: 0xa0, hi: 0xa1},
+	{value: 0x3c95, lo: 0xa2, hi: 0xa3},
+	{value: 0x3cbf, lo: 0xaa, hi: 0xad},
+	// Block 0x44, offset 0x1b3
+	{value: 0x0004, lo: 0x01},
+	{value: 0x048b, lo: 0xa9, hi: 0xaa},
+	// Block 0x45, offset 0x1b5
+	{value: 0x0002, lo: 0x03},
+	{value: 0x0057, lo: 0x80, hi: 0x8f},
+	{value: 0x0083, lo: 0x90, hi: 0xa9},
+	{value: 0x0021, lo: 0xaa, hi: 0xaa},
+	// Block 0x46, offset 0x1b9
+	{value: 0x0000, lo: 0x01},
+	{value: 0x299e, lo: 0x8c, hi: 0x8c},
+	// Block 0x47, offset 0x1bb
+	{value: 0x0266, lo: 0x02},
+	{value: 0x1b8f, lo: 0xb4, hi: 0xb4},
+	{value: 0x192d, lo: 0xb5, hi: 0xb6},
+	// Block 0x48, offset 0x1be
+	{value: 0x0000, lo: 0x01},
+	{value: 0x44e0, lo: 0x9c, hi: 0x9c},
+	// Block 0x49, offset 0x1c0
+	{value: 0x0000, lo: 0x02},
+	{value: 0x0095, lo: 0xbc, hi: 0xbc},
+	{value: 0x006d, lo: 0xbd, hi: 0xbd},
+	// Block 0x4a, offset 0x1c3
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xaf, hi: 0xb1},
+	// Block 0x4b, offset 0x1c5
+	{value: 0x0000, lo: 0x02},
+	{value: 0x047f, lo: 0xaf, hi: 0xaf},
+	{value: 0x8104, lo: 0xbf, hi: 0xbf},
+	// Block 0x4c, offset 0x1c8
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xa0, hi: 0xbf},
+	// Block 0x4d, offset 0x1ca
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0dc3, lo: 0x9f, hi: 0x9f},
+	// Block 0x4e, offset 0x1cc
+	{value: 0x0000, lo: 0x01},
+	{value: 0x162f, lo: 0xb3, hi: 0xb3},
+	// Block 0x4f, offset 0x1ce
+	{value: 0x0004, lo: 0x0b},
+	{value: 0x1597, lo: 0x80, hi: 0x82},
+	{value: 0x15af, lo: 0x83, hi: 0x83},
+	{value: 0x15c7, lo: 0x84, hi: 0x85},
+	{value: 0x15d7, lo: 0x86, hi: 0x89},
+	{value: 0x15eb, lo: 0x8a, hi: 0x8c},
+	{value: 0x15ff, lo: 0x8d, hi: 0x8d},
+	{value: 0x1607, lo: 0x8e, hi: 0x8e},
+	{value: 0x160f, lo: 0x8f, hi: 0x90},
+	{value: 0x161b, lo: 0x91, hi: 0x93},
+	{value: 0x162b, lo: 0x94, hi: 0x94},
+	{value: 0x1633, lo: 0x95, hi: 0x95},
+	// Block 0x50, offset 0x1da
+	{value: 0x0004, lo: 0x09},
+	{value: 0x0001, lo: 0x80, hi: 0x80},
+	{value: 0x812c, lo: 0xaa, hi: 0xaa},
+	{value: 0x8131, lo: 0xab, hi: 0xab},
+	{value: 0x8133, lo: 0xac, hi: 0xac},
+	{value: 0x812e, lo: 0xad, hi: 0xad},
+	{value: 0x812f, lo: 0xae, hi: 0xae},
+	{value: 0x812f, lo: 0xaf, hi: 0xaf},
+	{value: 0x04b3, lo: 0xb6, hi: 0xb6},
+	{value: 0x0887, lo: 0xb8, hi: 0xba},
+	// Block 0x51, offset 0x1e4
+	{value: 0x0006, lo: 0x09},
+	{value: 0x0313, lo: 0xb1, hi: 0xb1},
+	{value: 0x0317, lo: 0xb2, hi: 0xb2},
+	{value: 0x4a3e, lo: 0xb3, hi: 0xb3},
+	{value: 0x031b, lo: 0xb4, hi: 0xb4},
+	{value: 0x4a44, lo: 0xb5, hi: 0xb6},
+	{value: 0x031f, lo: 0xb7, hi: 0xb7},
+	{value: 0x0323, lo: 0xb8, hi: 0xb8},
+	{value: 0x0327, lo: 0xb9, hi: 0xb9},
+	{value: 0x4a50, lo: 0xba, hi: 0xbf},
+	// Block 0x52, offset 0x1ee
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8132, lo: 0xaf, hi: 0xaf},
+	{value: 0x8132, lo: 0xb4, hi: 0xbd},
+	// Block 0x53, offset 0x1f1
+	{value: 0x0000, lo: 0x03},
+	{value: 0x020f, lo: 0x9c, hi: 0x9c},
+	{value: 0x0212, lo: 0x9d, hi: 0x9d},
+	{value: 0x8132, lo: 0x9e, hi: 0x9f},
+	// Block 0x54, offset 0x1f5
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xb0, hi: 0xb1},
+	// Block 0x55, offset 0x1f7
+	{value: 0x0000, lo: 0x01},
+	{value: 0x163b, lo: 0xb0, hi: 0xb0},
+	// Block 0x56, offset 0x1f9
+	{value: 0x000c, lo: 0x01},
+	{value: 0x00d7, lo: 0xb8, hi: 0xb9},
+	// Block 0x57, offset 0x1fb
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x86, hi: 0x86},
+	// Block 0x58, offset 0x1fd
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x84, hi: 0x84},
+	{value: 0x8132, lo: 0xa0, hi: 0xb1},
+	// Block 0x59, offset 0x200
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0xab, hi: 0xad},
+	// Block 0x5a, offset 0x202
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x93, hi: 0x93},
+	// Block 0x5b, offset 0x204
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8102, lo: 0xb3, hi: 0xb3},
+	// Block 0x5c, offset 0x206
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x80, hi: 0x80},
+	// Block 0x5d, offset 0x208
+	{value: 0x0000, lo: 0x05},
+	{value: 0x8132, lo: 0xb0, hi: 0xb0},
+	{value: 0x8132, lo: 0xb2, hi: 0xb3},
+	{value: 0x812d, lo: 0xb4, hi: 0xb4},
+	{value: 0x8132, lo: 0xb7, hi: 0xb8},
+	{value: 0x8132, lo: 0xbe, hi: 0xbf},
+	// Block 0x5e, offset 0x20e
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8132, lo: 0x81, hi: 0x81},
+	{value: 0x8104, lo: 0xb6, hi: 0xb6},
+	// Block 0x5f, offset 0x211
+	{value: 0x0008, lo: 0x03},
+	{value: 0x1637, lo: 0x9c, hi: 0x9d},
+	{value: 0x0125, lo: 0x9e, hi: 0x9e},
+	{value: 0x1643, lo: 0x9f, hi: 0x9f},
+	// Block 0x60, offset 0x215
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xad, hi: 0xad},
+	// Block 0x61, offset 0x217
+	{value: 0x0000, lo: 0x06},
+	{value: 0xe500, lo: 0x80, hi: 0x80},
+	{value: 0xc600, lo: 0x81, hi: 0x9b},
+	{value: 0xe500, lo: 0x9c, hi: 0x9c},
+	{value: 0xc600, lo: 0x9d, hi: 0xb7},
+	{value: 0xe500, lo: 0xb8, hi: 0xb8},
+	{value: 0xc600, lo: 0xb9, hi: 0xbf},
+	// Block 0x62, offset 0x21e
+	{value: 0x0000, lo: 0x05},
+	{value: 0xc600, lo: 0x80, hi: 0x93},
+	{value: 0xe500, lo: 0x94, hi: 0x94},
+	{value: 0xc600, lo: 0x95, hi: 0xaf},
+	{value: 0xe500, lo: 0xb0, hi: 0xb0},
+	{value: 0xc600, lo: 0xb1, hi: 0xbf},
+	// Block 0x63, offset 0x224
+	{value: 0x0000, lo: 0x05},
+	{value: 0xc600, lo: 0x80, hi: 0x8b},
+	{value: 0xe500, lo: 0x8c, hi: 0x8c},
+	{value: 0xc600, lo: 0x8d, hi: 0xa7},
+	{value: 0xe500, lo: 0xa8, hi: 0xa8},
+	{value: 0xc600, lo: 0xa9, hi: 0xbf},
+	// Block 0x64, offset 0x22a
+	{value: 0x0000, lo: 0x07},
+	{value: 0xc600, lo: 0x80, hi: 0x83},
+	{value: 0xe500, lo: 0x84, hi: 0x84},
+	{value: 0xc600, lo: 0x85, hi: 0x9f},
+	{value: 0xe500, lo: 0xa0, hi: 0xa0},
+	{value: 0xc600, lo: 0xa1, hi: 0xbb},
+	{value: 0xe500, lo: 0xbc, hi: 0xbc},
+	{value: 0xc600, lo: 0xbd, hi: 0xbf},
+	// Block 0x65, offset 0x232
+	{value: 0x0000, lo: 0x05},
+	{value: 0xc600, lo: 0x80, hi: 0x97},
+	{value: 0xe500, lo: 0x98, hi: 0x98},
+	{value: 0xc600, lo: 0x99, hi: 0xb3},
+	{value: 0xe500, lo: 0xb4, hi: 0xb4},
+	{value: 0xc600, lo: 0xb5, hi: 0xbf},
+	// Block 0x66, offset 0x238
+	{value: 0x0000, lo: 0x05},
+	{value: 0xc600, lo: 0x80, hi: 0x8f},
+	{value: 0xe500, lo: 0x90, hi: 0x90},
+	{value: 0xc600, lo: 0x91, hi: 0xab},
+	{value: 0xe500, lo: 0xac, hi: 0xac},
+	{value: 0xc600, lo: 0xad, hi: 0xbf},
+	// Block 0x67, offset 0x23e
+	{value: 0x0000, lo: 0x05},
+	{value: 0xc600, lo: 0x80, hi: 0x87},
+	{value: 0xe500, lo: 0x88, hi: 0x88},
+	{value: 0xc600, lo: 0x89, hi: 0xa3},
+	{value: 0xe500, lo: 0xa4, hi: 0xa4},
+	{value: 0xc600, lo: 0xa5, hi: 0xbf},
+	// Block 0x68, offset 0x244
+	{value: 0x0000, lo: 0x03},
+	{value: 0xc600, lo: 0x80, hi: 0x87},
+	{value: 0xe500, lo: 0x88, hi: 0x88},
+	{value: 0xc600, lo: 0x89, hi: 0xa3},
+	// Block 0x69, offset 0x248
+	{value: 0x0002, lo: 0x01},
+	{value: 0x0003, lo: 0x81, hi: 0xbf},
+	// Block 0x6a, offset 0x24a
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0xbd, hi: 0xbd},
+	// Block 0x6b, offset 0x24c
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0xa0, hi: 0xa0},
+	// Block 0x6c, offset 0x24e
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xb6, hi: 0xba},
+	// Block 0x6d, offset 0x250
+	{value: 0x002c, lo: 0x05},
+	{value: 0x812d, lo: 0x8d, hi: 0x8d},
+	{value: 0x8132, lo: 0x8f, hi: 0x8f},
+	{value: 0x8132, lo: 0xb8, hi: 0xb8},
+	{value: 0x8101, lo: 0xb9, hi: 0xba},
+	{value: 0x8104, lo: 0xbf, hi: 0xbf},
+	// Block 0x6e, offset 0x256
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8132, lo: 0xa5, hi: 0xa5},
+	{value: 0x812d, lo: 0xa6, hi: 0xa6},
+	// Block 0x6f, offset 0x259
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xa4, hi: 0xa7},
+	// Block 0x70, offset 0x25b
+	{value: 0x0000, lo: 0x05},
+	{value: 0x812d, lo: 0x86, hi: 0x87},
+	{value: 0x8132, lo: 0x88, hi: 0x8a},
+	{value: 0x812d, lo: 0x8b, hi: 0x8b},
+	{value: 0x8132, lo: 0x8c, hi: 0x8c},
+	{value: 0x812d, lo: 0x8d, hi: 0x90},
+	// Block 0x71, offset 0x261
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x86, hi: 0x86},
+	{value: 0x8104, lo: 0xbf, hi: 0xbf},
+	// Block 0x72, offset 0x264
+	{value: 0x17fe, lo: 0x07},
+	{value: 0xa000, lo: 0x99, hi: 0x99},
+	{value: 0x423b, lo: 0x9a, hi: 0x9a},
+	{value: 0xa000, lo: 0x9b, hi: 0x9b},
+	{value: 0x4245, lo: 0x9c, hi: 0x9c},
+	{value: 0xa000, lo: 0xa5, hi: 0xa5},
+	{value: 0x424f, lo: 0xab, hi: 0xab},
+	{value: 0x8104, lo: 0xb9, hi: 0xba},
+	// Block 0x73, offset 0x26c
+	{value: 0x0000, lo: 0x06},
+	{value: 0x8132, lo: 0x80, hi: 0x82},
+	{value: 0x9900, lo: 0xa7, hi: 0xa7},
+	{value: 0x2d81, lo: 0xae, hi: 0xae},
+	{value: 0x2d8b, lo: 0xaf, hi: 0xaf},
+	{value: 0xa000, lo: 0xb1, hi: 0xb2},
+	{value: 0x8104, lo: 0xb3, hi: 0xb4},
+	// Block 0x74, offset 0x273
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x80, hi: 0x80},
+	{value: 0x8102, lo: 0x8a, hi: 0x8a},
+	// Block 0x75, offset 0x276
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0xb5, hi: 0xb5},
+	{value: 0x8102, lo: 0xb6, hi: 0xb6},
+	// Block 0x76, offset 0x279
+	{value: 0x0002, lo: 0x01},
+	{value: 0x8102, lo: 0xa9, hi: 0xaa},
+	// Block 0x77, offset 0x27b
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8102, lo: 0xbb, hi: 0xbc},
+	{value: 0x9900, lo: 0xbe, hi: 0xbe},
+	// Block 0x78, offset 0x27e
+	{value: 0x0000, lo: 0x07},
+	{value: 0xa000, lo: 0x87, hi: 0x87},
+	{value: 0x2d95, lo: 0x8b, hi: 0x8b},
+	{value: 0x2d9f, lo: 0x8c, hi: 0x8c},
+	{value: 0x8104, lo: 0x8d, hi: 0x8d},
+	{value: 0x9900, lo: 0x97, hi: 0x97},
+	{value: 0x8132, lo: 0xa6, hi: 0xac},
+	{value: 0x8132, lo: 0xb0, hi: 0xb4},
+	// Block 0x79, offset 0x286
+	{value: 0x0000, lo: 0x03},
+	{value: 0x8104, lo: 0x82, hi: 0x82},
+	{value: 0x8102, lo: 0x86, hi: 0x86},
+	{value: 0x8132, lo: 0x9e, hi: 0x9e},
+	// Block 0x7a, offset 0x28a
+	{value: 0x6b57, lo: 0x06},
+	{value: 0x9900, lo: 0xb0, hi: 0xb0},
+	{value: 0xa000, lo: 0xb9, hi: 0xb9},
+	{value: 0x9900, lo: 0xba, hi: 0xba},
+	{value: 0x2db3, lo: 0xbb, hi: 0xbb},
+	{value: 0x2da9, lo: 0xbc, hi: 0xbd},
+	{value: 0x2dbd, lo: 0xbe, hi: 0xbe},
+	// Block 0x7b, offset 0x291
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0x82, hi: 0x82},
+	{value: 0x8102, lo: 0x83, hi: 0x83},
+	// Block 0x7c, offset 0x294
+	{value: 0x0000, lo: 0x05},
+	{value: 0x9900, lo: 0xaf, hi: 0xaf},
+	{value: 0xa000, lo: 0xb8, hi: 0xb9},
+	{value: 0x2dc7, lo: 0xba, hi: 0xba},
+	{value: 0x2dd1, lo: 0xbb, hi: 0xbb},
+	{value: 0x8104, lo: 0xbf, hi: 0xbf},
+	// Block 0x7d, offset 0x29a
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8102, lo: 0x80, hi: 0x80},
+	// Block 0x7e, offset 0x29c
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xbf, hi: 0xbf},
+	// Block 0x7f, offset 0x29e
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0xb6, hi: 0xb6},
+	{value: 0x8102, lo: 0xb7, hi: 0xb7},
+	// Block 0x80, offset 0x2a1
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xab, hi: 0xab},
+	// Block 0x81, offset 0x2a3
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8104, lo: 0xb9, hi: 0xb9},
+	{value: 0x8102, lo: 0xba, hi: 0xba},
+	// Block 0x82, offset 0x2a6
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xa0, hi: 0xa0},
+	// Block 0x83, offset 0x2a8
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0xb4, hi: 0xb4},
+	// Block 0x84, offset 0x2aa
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x87, hi: 0x87},
+	// Block 0x85, offset 0x2ac
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x99, hi: 0x99},
+	// Block 0x86, offset 0x2ae
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8102, lo: 0x82, hi: 0x82},
+	{value: 0x8104, lo: 0x84, hi: 0x85},
+	// Block 0x87, offset 0x2b1
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8104, lo: 0x97, hi: 0x97},
+	// Block 0x88, offset 0x2b3
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8101, lo: 0xb0, hi: 0xb4},
+	// Block 0x89, offset 0x2b5
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xb0, hi: 0xb6},
+	// Block 0x8a, offset 0x2b7
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8101, lo: 0x9e, hi: 0x9e},
+	// Block 0x8b, offset 0x2b9
+	{value: 0x0000, lo: 0x0c},
+	{value: 0x45cf, lo: 0x9e, hi: 0x9e},
+	{value: 0x45d9, lo: 0x9f, hi: 0x9f},
+	{value: 0x460d, lo: 0xa0, hi: 0xa0},
+	{value: 0x461b, lo: 0xa1, hi: 0xa1},
+	{value: 0x4629, lo: 0xa2, hi: 0xa2},
+	{value: 0x4637, lo: 0xa3, hi: 0xa3},
+	{value: 0x4645, lo: 0xa4, hi: 0xa4},
+	{value: 0x812b, lo: 0xa5, hi: 0xa6},
+	{value: 0x8101, lo: 0xa7, hi: 0xa9},
+	{value: 0x8130, lo: 0xad, hi: 0xad},
+	{value: 0x812b, lo: 0xae, hi: 0xb2},
+	{value: 0x812d, lo: 0xbb, hi: 0xbf},
+	// Block 0x8c, offset 0x2c6
+	{value: 0x0000, lo: 0x09},
+	{value: 0x812d, lo: 0x80, hi: 0x82},
+	{value: 0x8132, lo: 0x85, hi: 0x89},
+	{value: 0x812d, lo: 0x8a, hi: 0x8b},
+	{value: 0x8132, lo: 0xaa, hi: 0xad},
+	{value: 0x45e3, lo: 0xbb, hi: 0xbb},
+	{value: 0x45ed, lo: 0xbc, hi: 0xbc},
+	{value: 0x4653, lo: 0xbd, hi: 0xbd},
+	{value: 0x466f, lo: 0xbe, hi: 0xbe},
+	{value: 0x4661, lo: 0xbf, hi: 0xbf},
+	// Block 0x8d, offset 0x2d0
+	{value: 0x0000, lo: 0x01},
+	{value: 0x467d, lo: 0x80, hi: 0x80},
+	// Block 0x8e, offset 0x2d2
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0x82, hi: 0x84},
+	// Block 0x8f, offset 0x2d4
+	{value: 0x0002, lo: 0x03},
+	{value: 0x0043, lo: 0x80, hi: 0x99},
+	{value: 0x0083, lo: 0x9a, hi: 0xb3},
+	{value: 0x0043, lo: 0xb4, hi: 0xbf},
+	// Block 0x90, offset 0x2d8
+	{value: 0x0002, lo: 0x04},
+	{value: 0x005b, lo: 0x80, hi: 0x8d},
+	{value: 0x0083, lo: 0x8e, hi: 0x94},
+	{value: 0x0093, lo: 0x96, hi: 0xa7},
+	{value: 0x0043, lo: 0xa8, hi: 0xbf},
+	// Block 0x91, offset 0x2dd
+	{value: 0x0002, lo: 0x0b},
+	{value: 0x0073, lo: 0x80, hi: 0x81},
+	{value: 0x0083, lo: 0x82, hi: 0x9b},
+	{value: 0x0043, lo: 0x9c, hi: 0x9c},
+	{value: 0x0047, lo: 0x9e, hi: 0x9f},
+	{value: 0x004f, lo: 0xa2, hi: 0xa2},
+	{value: 0x0055, lo: 0xa5, hi: 0xa6},
+	{value: 0x005d, lo: 0xa9, hi: 0xac},
+	{value: 0x0067, lo: 0xae, hi: 0xb5},
+	{value: 0x0083, lo: 0xb6, hi: 0xb9},
+	{value: 0x008d, lo: 0xbb, hi: 0xbb},
+	{value: 0x0091, lo: 0xbd, hi: 0xbf},
+	// Block 0x92, offset 0x2e9
+	{value: 0x0002, lo: 0x04},
+	{value: 0x0097, lo: 0x80, hi: 0x83},
+	{value: 0x00a1, lo: 0x85, hi: 0x8f},
+	{value: 0x0043, lo: 0x90, hi: 0xa9},
+	{value: 0x0083, lo: 0xaa, hi: 0xbf},
+	// Block 0x93, offset 0x2ee
+	{value: 0x0002, lo: 0x08},
+	{value: 0x00af, lo: 0x80, hi: 0x83},
+	{value: 0x0043, lo: 0x84, hi: 0x85},
+	{value: 0x0049, lo: 0x87, hi: 0x8a},
+	{value: 0x0055, lo: 0x8d, hi: 0x94},
+	{value: 0x0067, lo: 0x96, hi: 0x9c},
+	{value: 0x0083, lo: 0x9e, hi: 0xb7},
+	{value: 0x0043, lo: 0xb8, hi: 0xb9},
+	{value: 0x0049, lo: 0xbb, hi: 0xbe},
+	// Block 0x94, offset 0x2f7
+	{value: 0x0002, lo: 0x05},
+	{value: 0x0053, lo: 0x80, hi: 0x84},
+	{value: 0x005f, lo: 0x86, hi: 0x86},
+	{value: 0x0067, lo: 0x8a, hi: 0x90},
+	{value: 0x0083, lo: 0x92, hi: 0xab},
+	{value: 0x0043, lo: 0xac, hi: 0xbf},
+	// Block 0x95, offset 0x2fd
+	{value: 0x0002, lo: 0x04},
+	{value: 0x006b, lo: 0x80, hi: 0x85},
+	{value: 0x0083, lo: 0x86, hi: 0x9f},
+	{value: 0x0043, lo: 0xa0, hi: 0xb9},
+	{value: 0x0083, lo: 0xba, hi: 0xbf},
+	// Block 0x96, offset 0x302
+	{value: 0x0002, lo: 0x03},
+	{value: 0x008f, lo: 0x80, hi: 0x93},
+	{value: 0x0043, lo: 0x94, hi: 0xad},
+	{value: 0x0083, lo: 0xae, hi: 0xbf},
+	// Block 0x97, offset 0x306
+	{value: 0x0002, lo: 0x04},
+	{value: 0x00a7, lo: 0x80, hi: 0x87},
+	{value: 0x0043, lo: 0x88, hi: 0xa1},
+	{value: 0x0083, lo: 0xa2, hi: 0xbb},
+	{value: 0x0043, lo: 0xbc, hi: 0xbf},
+	// Block 0x98, offset 0x30b
+	{value: 0x0002, lo: 0x03},
+	{value: 0x004b, lo: 0x80, hi: 0x95},
+	{value: 0x0083, lo: 0x96, hi: 0xaf},
+	{value: 0x0043, lo: 0xb0, hi: 0xbf},
+	// Block 0x99, offset 0x30f
+	{value: 0x0003, lo: 0x0f},
+	{value: 0x01b8, lo: 0x80, hi: 0x80},
+	{value: 0x045f, lo: 0x81, hi: 0x81},
+	{value: 0x01bb, lo: 0x82, hi: 0x9a},
+	{value: 0x045b, lo: 0x9b, hi: 0x9b},
+	{value: 0x01c7, lo: 0x9c, hi: 0x9c},
+	{value: 0x01d0, lo: 0x9d, hi: 0x9d},
+	{value: 0x01d6, lo: 0x9e, hi: 0x9e},
+	{value: 0x01fa, lo: 0x9f, hi: 0x9f},
+	{value: 0x01eb, lo: 0xa0, hi: 0xa0},
+	{value: 0x01e8, lo: 0xa1, hi: 0xa1},
+	{value: 0x0173, lo: 0xa2, hi: 0xb2},
+	{value: 0x0188, lo: 0xb3, hi: 0xb3},
+	{value: 0x01a6, lo: 0xb4, hi: 0xba},
+	{value: 0x045f, lo: 0xbb, hi: 0xbb},
+	{value: 0x01bb, lo: 0xbc, hi: 0xbf},
+	// Block 0x9a, offset 0x31f
+	{value: 0x0003, lo: 0x0d},
+	{value: 0x01c7, lo: 0x80, hi: 0x94},
+	{value: 0x045b, lo: 0x95, hi: 0x95},
+	{value: 0x01c7, lo: 0x96, hi: 0x96},
+	{value: 0x01d0, lo: 0x97, hi: 0x97},
+	{value: 0x01d6, lo: 0x98, hi: 0x98},
+	{value: 0x01fa, lo: 0x99, hi: 0x99},
+	{value: 0x01eb, lo: 0x9a, hi: 0x9a},
+	{value: 0x01e8, lo: 0x9b, hi: 0x9b},
+	{value: 0x0173, lo: 0x9c, hi: 0xac},
+	{value: 0x0188, lo: 0xad, hi: 0xad},
+	{value: 0x01a6, lo: 0xae, hi: 0xb4},
+	{value: 0x045f, lo: 0xb5, hi: 0xb5},
+	{value: 0x01bb, lo: 0xb6, hi: 0xbf},
+	// Block 0x9b, offset 0x32d
+	{value: 0x0003, lo: 0x0d},
+	{value: 0x01d9, lo: 0x80, hi: 0x8e},
+	{value: 0x045b, lo: 0x8f, hi: 0x8f},
+	{value: 0x01c7, lo: 0x90, hi: 0x90},
+	{value: 0x01d0, lo: 0x91, hi: 0x91},
+	{value: 0x01d6, lo: 0x92, hi: 0x92},
+	{value: 0x01fa, lo: 0x93, hi: 0x93},
+	{value: 0x01eb, lo: 0x94, hi: 0x94},
+	{value: 0x01e8, lo: 0x95, hi: 0x95},
+	{value: 0x0173, lo: 0x96, hi: 0xa6},
+	{value: 0x0188, lo: 0xa7, hi: 0xa7},
+	{value: 0x01a6, lo: 0xa8, hi: 0xae},
+	{value: 0x045f, lo: 0xaf, hi: 0xaf},
+	{value: 0x01bb, lo: 0xb0, hi: 0xbf},
+	// Block 0x9c, offset 0x33b
+	{value: 0x0003, lo: 0x0d},
+	{value: 0x01eb, lo: 0x80, hi: 0x88},
+	{value: 0x045b, lo: 0x89, hi: 0x89},
+	{value: 0x01c7, lo: 0x8a, hi: 0x8a},
+	{value: 0x01d0, lo: 0x8b, hi: 0x8b},
+	{value: 0x01d6, lo: 0x8c, hi: 0x8c},
+	{value: 0x01fa, lo: 0x8d, hi: 0x8d},
+	{value: 0x01eb, lo: 0x8e, hi: 0x8e},
+	{value: 0x01e8, lo: 0x8f, hi: 0x8f},
+	{value: 0x0173, lo: 0x90, hi: 0xa0},
+	{value: 0x0188, lo: 0xa1, hi: 0xa1},
+	{value: 0x01a6, lo: 0xa2, hi: 0xa8},
+	{value: 0x045f, lo: 0xa9, hi: 0xa9},
+	{value: 0x01bb, lo: 0xaa, hi: 0xbf},
+	// Block 0x9d, offset 0x349
+	{value: 0x0000, lo: 0x05},
+	{value: 0x8132, lo: 0x80, hi: 0x86},
+	{value: 0x8132, lo: 0x88, hi: 0x98},
+	{value: 0x8132, lo: 0x9b, hi: 0xa1},
+	{value: 0x8132, lo: 0xa3, hi: 0xa4},
+	{value: 0x8132, lo: 0xa6, hi: 0xaa},
+	// Block 0x9e, offset 0x34f
+	{value: 0x0000, lo: 0x01},
+	{value: 0x8132, lo: 0xac, hi: 0xaf},
+	// Block 0x9f, offset 0x351
+	{value: 0x0000, lo: 0x01},
+	{value: 0x812d, lo: 0x90, hi: 0x96},
+	// Block 0xa0, offset 0x353
+	{value: 0x0000, lo: 0x02},
+	{value: 0x8132, lo: 0x84, hi: 0x89},
+	{value: 0x8102, lo: 0x8a, hi: 0x8a},
+	// Block 0xa1, offset 0x356
+	{value: 0x0002, lo: 0x0a},
+	{value: 0x0063, lo: 0x80, hi: 0x89},
+	{value: 0x1951, lo: 0x8a, hi: 0x8a},
+	{value: 0x1984, lo: 0x8b, hi: 0x8b},
+	{value: 0x199f, lo: 0x8c, hi: 0x8c},
+	{value: 0x19a5, lo: 0x8d, hi: 0x8d},
+	{value: 0x1bc3, lo: 0x8e, hi: 0x8e},
+	{value: 0x19b1, lo: 0x8f, hi: 0x8f},
+	{value: 0x197b, lo: 0xaa, hi: 0xaa},
+	{value: 0x197e, lo: 0xab, hi: 0xab},
+	{value: 0x1981, lo: 0xac, hi: 0xac},
+	// Block 0xa2, offset 0x361
+	{value: 0x0000, lo: 0x01},
+	{value: 0x193f, lo: 0x90, hi: 0x90},
+	// Block 0xa3, offset 0x363
+	{value: 0x0028, lo: 0x09},
+	{value: 0x2865, lo: 0x80, hi: 0x80},
+	{value: 0x2829, lo: 0x81, hi: 0x81},
+	{value: 0x2833, lo: 0x82, hi: 0x82},
+	{value: 0x2847, lo: 0x83, hi: 0x84},
+	{value: 0x2851, lo: 0x85, hi: 0x86},
+	{value: 0x283d, lo: 0x87, hi: 0x87},
+	{value: 0x285b, lo: 0x88, hi: 0x88},
+	{value: 0x0b6f, lo: 0x90, hi: 0x90},
+	{value: 0x08e7, lo: 0x91, hi: 0x91},
+}
+
+// recompMap: 7520 bytes (entries only)
+var recompMap map[uint32]rune
+var recompMapOnce sync.Once
+
+const recompMapPacked = "" +
+	"\x00A\x03\x00\x00\x00\x00\xc0" + // 0x00410300: 0x000000C0
+	"\x00A\x03\x01\x00\x00\x00\xc1" + // 0x00410301: 0x000000C1
+	"\x00A\x03\x02\x00\x00\x00\xc2" + // 0x00410302: 0x000000C2
+	"\x00A\x03\x03\x00\x00\x00\xc3" + // 0x00410303: 0x000000C3
+	"\x00A\x03\b\x00\x00\x00\xc4" + // 0x00410308: 0x000000C4
+	"\x00A\x03\n\x00\x00\x00\xc5" + // 0x0041030A: 0x000000C5
+	"\x00C\x03'\x00\x00\x00\xc7" + // 0x00430327: 0x000000C7
+	"\x00E\x03\x00\x00\x00\x00\xc8" + // 0x00450300: 0x000000C8
+	"\x00E\x03\x01\x00\x00\x00\xc9" + // 0x00450301: 0x000000C9
+	"\x00E\x03\x02\x00\x00\x00\xca" + // 0x00450302: 0x000000CA
+	"\x00E\x03\b\x00\x00\x00\xcb" + // 0x00450308: 0x000000CB
+	"\x00I\x03\x00\x00\x00\x00\xcc" + // 0x00490300: 0x000000CC
+	"\x00I\x03\x01\x00\x00\x00\xcd" + // 0x00490301: 0x000000CD
+	"\x00I\x03\x02\x00\x00\x00\xce" + // 0x00490302: 0x000000CE
+	"\x00I\x03\b\x00\x00\x00\xcf" + // 0x00490308: 0x000000CF
+	"\x00N\x03\x03\x00\x00\x00\xd1" + // 0x004E0303: 0x000000D1
+	"\x00O\x03\x00\x00\x00\x00\xd2" + // 0x004F0300: 0x000000D2
+	"\x00O\x03\x01\x00\x00\x00\xd3" + // 0x004F0301: 0x000000D3
+	"\x00O\x03\x02\x00\x00\x00\xd4" + // 0x004F0302: 0x000000D4
+	"\x00O\x03\x03\x00\x00\x00\xd5" + // 0x004F0303: 0x000000D5
+	"\x00O\x03\b\x00\x00\x00\xd6" + // 0x004F0308: 0x000000D6
+	"\x00U\x03\x00\x00\x00\x00\xd9" + // 0x00550300: 0x000000D9
+	"\x00U\x03\x01\x00\x00\x00\xda" + // 0x00550301: 0x000000DA
+	"\x00U\x03\x02\x00\x00\x00\xdb" + // 0x00550302: 0x000000DB
+	"\x00U\x03\b\x00\x00\x00\xdc" + // 0x00550308: 0x000000DC
+	"\x00Y\x03\x01\x00\x00\x00\xdd" + // 0x00590301: 0x000000DD
+	"\x00a\x03\x00\x00\x00\x00\xe0" + // 0x00610300: 0x000000E0
+	"\x00a\x03\x01\x00\x00\x00\xe1" + // 0x00610301: 0x000000E1
+	"\x00a\x03\x02\x00\x00\x00\xe2" + // 0x00610302: 0x000000E2
+	"\x00a\x03\x03\x00\x00\x00\xe3" + // 0x00610303: 0x000000E3
+	"\x00a\x03\b\x00\x00\x00\xe4" + // 0x00610308: 0x000000E4
+	"\x00a\x03\n\x00\x00\x00\xe5" + // 0x0061030A: 0x000000E5
+	"\x00c\x03'\x00\x00\x00\xe7" + // 0x00630327: 0x000000E7
+	"\x00e\x03\x00\x00\x00\x00\xe8" + // 0x00650300: 0x000000E8
+	"\x00e\x03\x01\x00\x00\x00\xe9" + // 0x00650301: 0x000000E9
+	"\x00e\x03\x02\x00\x00\x00\xea" + // 0x00650302: 0x000000EA
+	"\x00e\x03\b\x00\x00\x00\xeb" + // 0x00650308: 0x000000EB
+	"\x00i\x03\x00\x00\x00\x00\xec" + // 0x00690300: 0x000000EC
+	"\x00i\x03\x01\x00\x00\x00\xed" + // 0x00690301: 0x000000ED
+	"\x00i\x03\x02\x00\x00\x00\xee" + // 0x00690302: 0x000000EE
+	"\x00i\x03\b\x00\x00\x00\xef" + // 0x00690308: 0x000000EF
+	"\x00n\x03\x03\x00\x00\x00\xf1" + // 0x006E0303: 0x000000F1
+	"\x00o\x03\x00\x00\x00\x00\xf2" + // 0x006F0300: 0x000000F2
+	"\x00o\x03\x01\x00\x00\x00\xf3" + // 0x006F0301: 0x000000F3
+	"\x00o\x03\x02\x00\x00\x00\xf4" + // 0x006F0302: 0x000000F4
+	"\x00o\x03\x03\x00\x00\x00\xf5" + // 0x006F0303: 0x000000F5
+	"\x00o\x03\b\x00\x00\x00\xf6" + // 0x006F0308: 0x000000F6
+	"\x00u\x03\x00\x00\x00\x00\xf9" + // 0x00750300: 0x000000F9
+	"\x00u\x03\x01\x00\x00\x00\xfa" + // 0x00750301: 0x000000FA
+	"\x00u\x03\x02\x00\x00\x00\xfb" + // 0x00750302: 0x000000FB
+	"\x00u\x03\b\x00\x00\x00\xfc" + // 0x00750308: 0x000000FC
+	"\x00y\x03\x01\x00\x00\x00\xfd" + // 0x00790301: 0x000000FD
+	"\x00y\x03\b\x00\x00\x00\xff" + // 0x00790308: 0x000000FF
+	"\x00A\x03\x04\x00\x00\x01\x00" + // 0x00410304: 0x00000100
+	"\x00a\x03\x04\x00\x00\x01\x01" + // 0x00610304: 0x00000101
+	"\x00A\x03\x06\x00\x00\x01\x02" + // 0x00410306: 0x00000102
+	"\x00a\x03\x06\x00\x00\x01\x03" + // 0x00610306: 0x00000103
+	"\x00A\x03(\x00\x00\x01\x04" + // 0x00410328: 0x00000104
+	"\x00a\x03(\x00\x00\x01\x05" + // 0x00610328: 0x00000105
+	"\x00C\x03\x01\x00\x00\x01\x06" + // 0x00430301: 0x00000106
+	"\x00c\x03\x01\x00\x00\x01\a" + // 0x00630301: 0x00000107
+	"\x00C\x03\x02\x00\x00\x01\b" + // 0x00430302: 0x00000108
+	"\x00c\x03\x02\x00\x00\x01\t" + // 0x00630302: 0x00000109
+	"\x00C\x03\a\x00\x00\x01\n" + // 0x00430307: 0x0000010A
+	"\x00c\x03\a\x00\x00\x01\v" + // 0x00630307: 0x0000010B
+	"\x00C\x03\f\x00\x00\x01\f" + // 0x0043030C: 0x0000010C
+	"\x00c\x03\f\x00\x00\x01\r" + // 0x0063030C: 0x0000010D
+	"\x00D\x03\f\x00\x00\x01\x0e" + // 0x0044030C: 0x0000010E
+	"\x00d\x03\f\x00\x00\x01\x0f" + // 0x0064030C: 0x0000010F
+	"\x00E\x03\x04\x00\x00\x01\x12" + // 0x00450304: 0x00000112
+	"\x00e\x03\x04\x00\x00\x01\x13" + // 0x00650304: 0x00000113
+	"\x00E\x03\x06\x00\x00\x01\x14" + // 0x00450306: 0x00000114
+	"\x00e\x03\x06\x00\x00\x01\x15" + // 0x00650306: 0x00000115
+	"\x00E\x03\a\x00\x00\x01\x16" + // 0x00450307: 0x00000116
+	"\x00e\x03\a\x00\x00\x01\x17" + // 0x00650307: 0x00000117
+	"\x00E\x03(\x00\x00\x01\x18" + // 0x00450328: 0x00000118
+	"\x00e\x03(\x00\x00\x01\x19" + // 0x00650328: 0x00000119
+	"\x00E\x03\f\x00\x00\x01\x1a" + // 0x0045030C: 0x0000011A
+	"\x00e\x03\f\x00\x00\x01\x1b" + // 0x0065030C: 0x0000011B
+	"\x00G\x03\x02\x00\x00\x01\x1c" + // 0x00470302: 0x0000011C
+	"\x00g\x03\x02\x00\x00\x01\x1d" + // 0x00670302: 0x0000011D
+	"\x00G\x03\x06\x00\x00\x01\x1e" + // 0x00470306: 0x0000011E
+	"\x00g\x03\x06\x00\x00\x01\x1f" + // 0x00670306: 0x0000011F
+	"\x00G\x03\a\x00\x00\x01 " + // 0x00470307: 0x00000120
+	"\x00g\x03\a\x00\x00\x01!" + // 0x00670307: 0x00000121
+	"\x00G\x03'\x00\x00\x01\"" + // 0x00470327: 0x00000122
+	"\x00g\x03'\x00\x00\x01#" + // 0x00670327: 0x00000123
+	"\x00H\x03\x02\x00\x00\x01$" + // 0x00480302: 0x00000124
+	"\x00h\x03\x02\x00\x00\x01%" + // 0x00680302: 0x00000125
+	"\x00I\x03\x03\x00\x00\x01(" + // 0x00490303: 0x00000128
+	"\x00i\x03\x03\x00\x00\x01)" + // 0x00690303: 0x00000129
+	"\x00I\x03\x04\x00\x00\x01*" + // 0x00490304: 0x0000012A
+	"\x00i\x03\x04\x00\x00\x01+" + // 0x00690304: 0x0000012B
+	"\x00I\x03\x06\x00\x00\x01," + // 0x00490306: 0x0000012C
+	"\x00i\x03\x06\x00\x00\x01-" + // 0x00690306: 0x0000012D
+	"\x00I\x03(\x00\x00\x01." + // 0x00490328: 0x0000012E
+	"\x00i\x03(\x00\x00\x01/" + // 0x00690328: 0x0000012F
+	"\x00I\x03\a\x00\x00\x010" + // 0x00490307: 0x00000130
+	"\x00J\x03\x02\x00\x00\x014" + // 0x004A0302: 0x00000134
+	"\x00j\x03\x02\x00\x00\x015" + // 0x006A0302: 0x00000135
+	"\x00K\x03'\x00\x00\x016" + // 0x004B0327: 0x00000136
+	"\x00k\x03'\x00\x00\x017" + // 0x006B0327: 0x00000137
+	"\x00L\x03\x01\x00\x00\x019" + // 0x004C0301: 0x00000139
+	"\x00l\x03\x01\x00\x00\x01:" + // 0x006C0301: 0x0000013A
+	"\x00L\x03'\x00\x00\x01;" + // 0x004C0327: 0x0000013B
+	"\x00l\x03'\x00\x00\x01<" + // 0x006C0327: 0x0000013C
+	"\x00L\x03\f\x00\x00\x01=" + // 0x004C030C: 0x0000013D
+	"\x00l\x03\f\x00\x00\x01>" + // 0x006C030C: 0x0000013E
+	"\x00N\x03\x01\x00\x00\x01C" + // 0x004E0301: 0x00000143
+	"\x00n\x03\x01\x00\x00\x01D" + // 0x006E0301: 0x00000144
+	"\x00N\x03'\x00\x00\x01E" + // 0x004E0327: 0x00000145
+	"\x00n\x03'\x00\x00\x01F" + // 0x006E0327: 0x00000146
+	"\x00N\x03\f\x00\x00\x01G" + // 0x004E030C: 0x00000147
+	"\x00n\x03\f\x00\x00\x01H" + // 0x006E030C: 0x00000148
+	"\x00O\x03\x04\x00\x00\x01L" + // 0x004F0304: 0x0000014C
+	"\x00o\x03\x04\x00\x00\x01M" + // 0x006F0304: 0x0000014D
+	"\x00O\x03\x06\x00\x00\x01N" + // 0x004F0306: 0x0000014E
+	"\x00o\x03\x06\x00\x00\x01O" + // 0x006F0306: 0x0000014F
+	"\x00O\x03\v\x00\x00\x01P" + // 0x004F030B: 0x00000150
+	"\x00o\x03\v\x00\x00\x01Q" + // 0x006F030B: 0x00000151
+	"\x00R\x03\x01\x00\x00\x01T" + // 0x00520301: 0x00000154
+	"\x00r\x03\x01\x00\x00\x01U" + // 0x00720301: 0x00000155
+	"\x00R\x03'\x00\x00\x01V" + // 0x00520327: 0x00000156
+	"\x00r\x03'\x00\x00\x01W" + // 0x00720327: 0x00000157
+	"\x00R\x03\f\x00\x00\x01X" + // 0x0052030C: 0x00000158
+	"\x00r\x03\f\x00\x00\x01Y" + // 0x0072030C: 0x00000159
+	"\x00S\x03\x01\x00\x00\x01Z" + // 0x00530301: 0x0000015A
+	"\x00s\x03\x01\x00\x00\x01[" + // 0x00730301: 0x0000015B
+	"\x00S\x03\x02\x00\x00\x01\\" + // 0x00530302: 0x0000015C
+	"\x00s\x03\x02\x00\x00\x01]" + // 0x00730302: 0x0000015D
+	"\x00S\x03'\x00\x00\x01^" + // 0x00530327: 0x0000015E
+	"\x00s\x03'\x00\x00\x01_" + // 0x00730327: 0x0000015F
+	"\x00S\x03\f\x00\x00\x01`" + // 0x0053030C: 0x00000160
+	"\x00s\x03\f\x00\x00\x01a" + // 0x0073030C: 0x00000161
+	"\x00T\x03'\x00\x00\x01b" + // 0x00540327: 0x00000162
+	"\x00t\x03'\x00\x00\x01c" + // 0x00740327: 0x00000163
+	"\x00T\x03\f\x00\x00\x01d" + // 0x0054030C: 0x00000164
+	"\x00t\x03\f\x00\x00\x01e" + // 0x0074030C: 0x00000165
+	"\x00U\x03\x03\x00\x00\x01h" + // 0x00550303: 0x00000168
+	"\x00u\x03\x03\x00\x00\x01i" + // 0x00750303: 0x00000169
+	"\x00U\x03\x04\x00\x00\x01j" + // 0x00550304: 0x0000016A
+	"\x00u\x03\x04\x00\x00\x01k" + // 0x00750304: 0x0000016B
+	"\x00U\x03\x06\x00\x00\x01l" + // 0x00550306: 0x0000016C
+	"\x00u\x03\x06\x00\x00\x01m" + // 0x00750306: 0x0000016D
+	"\x00U\x03\n\x00\x00\x01n" + // 0x0055030A: 0x0000016E
+	"\x00u\x03\n\x00\x00\x01o" + // 0x0075030A: 0x0000016F
+	"\x00U\x03\v\x00\x00\x01p" + // 0x0055030B: 0x00000170
+	"\x00u\x03\v\x00\x00\x01q" + // 0x0075030B: 0x00000171
+	"\x00U\x03(\x00\x00\x01r" + // 0x00550328: 0x00000172
+	"\x00u\x03(\x00\x00\x01s" + // 0x00750328: 0x00000173
+	"\x00W\x03\x02\x00\x00\x01t" + // 0x00570302: 0x00000174
+	"\x00w\x03\x02\x00\x00\x01u" + // 0x00770302: 0x00000175
+	"\x00Y\x03\x02\x00\x00\x01v" + // 0x00590302: 0x00000176
+	"\x00y\x03\x02\x00\x00\x01w" + // 0x00790302: 0x00000177
+	"\x00Y\x03\b\x00\x00\x01x" + // 0x00590308: 0x00000178
+	"\x00Z\x03\x01\x00\x00\x01y" + // 0x005A0301: 0x00000179
+	"\x00z\x03\x01\x00\x00\x01z" + // 0x007A0301: 0x0000017A
+	"\x00Z\x03\a\x00\x00\x01{" + // 0x005A0307: 0x0000017B
+	"\x00z\x03\a\x00\x00\x01|" + // 0x007A0307: 0x0000017C
+	"\x00Z\x03\f\x00\x00\x01}" + // 0x005A030C: 0x0000017D
+	"\x00z\x03\f\x00\x00\x01~" + // 0x007A030C: 0x0000017E
+	"\x00O\x03\x1b\x00\x00\x01\xa0" + // 0x004F031B: 0x000001A0
+	"\x00o\x03\x1b\x00\x00\x01\xa1" + // 0x006F031B: 0x000001A1
+	"\x00U\x03\x1b\x00\x00\x01\xaf" + // 0x0055031B: 0x000001AF
+	"\x00u\x03\x1b\x00\x00\x01\xb0" + // 0x0075031B: 0x000001B0
+	"\x00A\x03\f\x00\x00\x01\xcd" + // 0x0041030C: 0x000001CD
+	"\x00a\x03\f\x00\x00\x01\xce" + // 0x0061030C: 0x000001CE
+	"\x00I\x03\f\x00\x00\x01\xcf" + // 0x0049030C: 0x000001CF
+	"\x00i\x03\f\x00\x00\x01\xd0" + // 0x0069030C: 0x000001D0
+	"\x00O\x03\f\x00\x00\x01\xd1" + // 0x004F030C: 0x000001D1
+	"\x00o\x03\f\x00\x00\x01\xd2" + // 0x006F030C: 0x000001D2
+	"\x00U\x03\f\x00\x00\x01\xd3" + // 0x0055030C: 0x000001D3
+	"\x00u\x03\f\x00\x00\x01\xd4" + // 0x0075030C: 0x000001D4
+	"\x00\xdc\x03\x04\x00\x00\x01\xd5" + // 0x00DC0304: 0x000001D5
+	"\x00\xfc\x03\x04\x00\x00\x01\xd6" + // 0x00FC0304: 0x000001D6
+	"\x00\xdc\x03\x01\x00\x00\x01\xd7" + // 0x00DC0301: 0x000001D7
+	"\x00\xfc\x03\x01\x00\x00\x01\xd8" + // 0x00FC0301: 0x000001D8
+	"\x00\xdc\x03\f\x00\x00\x01\xd9" + // 0x00DC030C: 0x000001D9
+	"\x00\xfc\x03\f\x00\x00\x01\xda" + // 0x00FC030C: 0x000001DA
+	"\x00\xdc\x03\x00\x00\x00\x01\xdb" + // 0x00DC0300: 0x000001DB
+	"\x00\xfc\x03\x00\x00\x00\x01\xdc" + // 0x00FC0300: 0x000001DC
+	"\x00\xc4\x03\x04\x00\x00\x01\xde" + // 0x00C40304: 0x000001DE
+	"\x00\xe4\x03\x04\x00\x00\x01\xdf" + // 0x00E40304: 0x000001DF
+	"\x02&\x03\x04\x00\x00\x01\xe0" + // 0x02260304: 0x000001E0
+	"\x02'\x03\x04\x00\x00\x01\xe1" + // 0x02270304: 0x000001E1
+	"\x00\xc6\x03\x04\x00\x00\x01\xe2" + // 0x00C60304: 0x000001E2
+	"\x00\xe6\x03\x04\x00\x00\x01\xe3" + // 0x00E60304: 0x000001E3
+	"\x00G\x03\f\x00\x00\x01\xe6" + // 0x0047030C: 0x000001E6
+	"\x00g\x03\f\x00\x00\x01\xe7" + // 0x0067030C: 0x000001E7
+	"\x00K\x03\f\x00\x00\x01\xe8" + // 0x004B030C: 0x000001E8
+	"\x00k\x03\f\x00\x00\x01\xe9" + // 0x006B030C: 0x000001E9
+	"\x00O\x03(\x00\x00\x01\xea" + // 0x004F0328: 0x000001EA
+	"\x00o\x03(\x00\x00\x01\xeb" + // 0x006F0328: 0x000001EB
+	"\x01\xea\x03\x04\x00\x00\x01\xec" + // 0x01EA0304: 0x000001EC
+	"\x01\xeb\x03\x04\x00\x00\x01\xed" + // 0x01EB0304: 0x000001ED
+	"\x01\xb7\x03\f\x00\x00\x01\xee" + // 0x01B7030C: 0x000001EE
+	"\x02\x92\x03\f\x00\x00\x01\xef" + // 0x0292030C: 0x000001EF
+	"\x00j\x03\f\x00\x00\x01\xf0" + // 0x006A030C: 0x000001F0
+	"\x00G\x03\x01\x00\x00\x01\xf4" + // 0x00470301: 0x000001F4
+	"\x00g\x03\x01\x00\x00\x01\xf5" + // 0x00670301: 0x000001F5
+	"\x00N\x03\x00\x00\x00\x01\xf8" + // 0x004E0300: 0x000001F8
+	"\x00n\x03\x00\x00\x00\x01\xf9" + // 0x006E0300: 0x000001F9
+	"\x00\xc5\x03\x01\x00\x00\x01\xfa" + // 0x00C50301: 0x000001FA
+	"\x00\xe5\x03\x01\x00\x00\x01\xfb" + // 0x00E50301: 0x000001FB
+	"\x00\xc6\x03\x01\x00\x00\x01\xfc" + // 0x00C60301: 0x000001FC
+	"\x00\xe6\x03\x01\x00\x00\x01\xfd" + // 0x00E60301: 0x000001FD
+	"\x00\xd8\x03\x01\x00\x00\x01\xfe" + // 0x00D80301: 0x000001FE
+	"\x00\xf8\x03\x01\x00\x00\x01\xff" + // 0x00F80301: 0x000001FF
+	"\x00A\x03\x0f\x00\x00\x02\x00" + // 0x0041030F: 0x00000200
+	"\x00a\x03\x0f\x00\x00\x02\x01" + // 0x0061030F: 0x00000201
+	"\x00A\x03\x11\x00\x00\x02\x02" + // 0x00410311: 0x00000202
+	"\x00a\x03\x11\x00\x00\x02\x03" + // 0x00610311: 0x00000203
+	"\x00E\x03\x0f\x00\x00\x02\x04" + // 0x0045030F: 0x00000204
+	"\x00e\x03\x0f\x00\x00\x02\x05" + // 0x0065030F: 0x00000205
+	"\x00E\x03\x11\x00\x00\x02\x06" + // 0x00450311: 0x00000206
+	"\x00e\x03\x11\x00\x00\x02\a" + // 0x00650311: 0x00000207
+	"\x00I\x03\x0f\x00\x00\x02\b" + // 0x0049030F: 0x00000208
+	"\x00i\x03\x0f\x00\x00\x02\t" + // 0x0069030F: 0x00000209
+	"\x00I\x03\x11\x00\x00\x02\n" + // 0x00490311: 0x0000020A
+	"\x00i\x03\x11\x00\x00\x02\v" + // 0x00690311: 0x0000020B
+	"\x00O\x03\x0f\x00\x00\x02\f" + // 0x004F030F: 0x0000020C
+	"\x00o\x03\x0f\x00\x00\x02\r" + // 0x006F030F: 0x0000020D
+	"\x00O\x03\x11\x00\x00\x02\x0e" + // 0x004F0311: 0x0000020E
+	"\x00o\x03\x11\x00\x00\x02\x0f" + // 0x006F0311: 0x0000020F
+	"\x00R\x03\x0f\x00\x00\x02\x10" + // 0x0052030F: 0x00000210
+	"\x00r\x03\x0f\x00\x00\x02\x11" + // 0x0072030F: 0x00000211
+	"\x00R\x03\x11\x00\x00\x02\x12" + // 0x00520311: 0x00000212
+	"\x00r\x03\x11\x00\x00\x02\x13" + // 0x00720311: 0x00000213
+	"\x00U\x03\x0f\x00\x00\x02\x14" + // 0x0055030F: 0x00000214
+	"\x00u\x03\x0f\x00\x00\x02\x15" + // 0x0075030F: 0x00000215
+	"\x00U\x03\x11\x00\x00\x02\x16" + // 0x00550311: 0x00000216
+	"\x00u\x03\x11\x00\x00\x02\x17" + // 0x00750311: 0x00000217
+	"\x00S\x03&\x00\x00\x02\x18" + // 0x00530326: 0x00000218
+	"\x00s\x03&\x00\x00\x02\x19" + // 0x00730326: 0x00000219
+	"\x00T\x03&\x00\x00\x02\x1a" + // 0x00540326: 0x0000021A
+	"\x00t\x03&\x00\x00\x02\x1b" + // 0x00740326: 0x0000021B
+	"\x00H\x03\f\x00\x00\x02\x1e" + // 0x0048030C: 0x0000021E
+	"\x00h\x03\f\x00\x00\x02\x1f" + // 0x0068030C: 0x0000021F
+	"\x00A\x03\a\x00\x00\x02&" + // 0x00410307: 0x00000226
+	"\x00a\x03\a\x00\x00\x02'" + // 0x00610307: 0x00000227
+	"\x00E\x03'\x00\x00\x02(" + // 0x00450327: 0x00000228
+	"\x00e\x03'\x00\x00\x02)" + // 0x00650327: 0x00000229
+	"\x00\xd6\x03\x04\x00\x00\x02*" + // 0x00D60304: 0x0000022A
+	"\x00\xf6\x03\x04\x00\x00\x02+" + // 0x00F60304: 0x0000022B
+	"\x00\xd5\x03\x04\x00\x00\x02," + // 0x00D50304: 0x0000022C
+	"\x00\xf5\x03\x04\x00\x00\x02-" + // 0x00F50304: 0x0000022D
+	"\x00O\x03\a\x00\x00\x02." + // 0x004F0307: 0x0000022E
+	"\x00o\x03\a\x00\x00\x02/" + // 0x006F0307: 0x0000022F
+	"\x02.\x03\x04\x00\x00\x020" + // 0x022E0304: 0x00000230
+	"\x02/\x03\x04\x00\x00\x021" + // 0x022F0304: 0x00000231
+	"\x00Y\x03\x04\x00\x00\x022" + // 0x00590304: 0x00000232
+	"\x00y\x03\x04\x00\x00\x023" + // 0x00790304: 0x00000233
+	"\x00\xa8\x03\x01\x00\x00\x03\x85" + // 0x00A80301: 0x00000385
+	"\x03\x91\x03\x01\x00\x00\x03\x86" + // 0x03910301: 0x00000386
+	"\x03\x95\x03\x01\x00\x00\x03\x88" + // 0x03950301: 0x00000388
+	"\x03\x97\x03\x01\x00\x00\x03\x89" + // 0x03970301: 0x00000389
+	"\x03\x99\x03\x01\x00\x00\x03\x8a" + // 0x03990301: 0x0000038A
+	"\x03\x9f\x03\x01\x00\x00\x03\x8c" + // 0x039F0301: 0x0000038C
+	"\x03\xa5\x03\x01\x00\x00\x03\x8e" + // 0x03A50301: 0x0000038E
+	"\x03\xa9\x03\x01\x00\x00\x03\x8f" + // 0x03A90301: 0x0000038F
+	"\x03\xca\x03\x01\x00\x00\x03\x90" + // 0x03CA0301: 0x00000390
+	"\x03\x99\x03\b\x00\x00\x03\xaa" + // 0x03990308: 0x000003AA
+	"\x03\xa5\x03\b\x00\x00\x03\xab" + // 0x03A50308: 0x000003AB
+	"\x03\xb1\x03\x01\x00\x00\x03\xac" + // 0x03B10301: 0x000003AC
+	"\x03\xb5\x03\x01\x00\x00\x03\xad" + // 0x03B50301: 0x000003AD
+	"\x03\xb7\x03\x01\x00\x00\x03\xae" + // 0x03B70301: 0x000003AE
+	"\x03\xb9\x03\x01\x00\x00\x03\xaf" + // 0x03B90301: 0x000003AF
+	"\x03\xcb\x03\x01\x00\x00\x03\xb0" + // 0x03CB0301: 0x000003B0
+	"\x03\xb9\x03\b\x00\x00\x03\xca" + // 0x03B90308: 0x000003CA
+	"\x03\xc5\x03\b\x00\x00\x03\xcb" + // 0x03C50308: 0x000003CB
+	"\x03\xbf\x03\x01\x00\x00\x03\xcc" + // 0x03BF0301: 0x000003CC
+	"\x03\xc5\x03\x01\x00\x00\x03\xcd" + // 0x03C50301: 0x000003CD
+	"\x03\xc9\x03\x01\x00\x00\x03\xce" + // 0x03C90301: 0x000003CE
+	"\x03\xd2\x03\x01\x00\x00\x03\xd3" + // 0x03D20301: 0x000003D3
+	"\x03\xd2\x03\b\x00\x00\x03\xd4" + // 0x03D20308: 0x000003D4
+	"\x04\x15\x03\x00\x00\x00\x04\x00" + // 0x04150300: 0x00000400
+	"\x04\x15\x03\b\x00\x00\x04\x01" + // 0x04150308: 0x00000401
+	"\x04\x13\x03\x01\x00\x00\x04\x03" + // 0x04130301: 0x00000403
+	"\x04\x06\x03\b\x00\x00\x04\a" + // 0x04060308: 0x00000407
+	"\x04\x1a\x03\x01\x00\x00\x04\f" + // 0x041A0301: 0x0000040C
+	"\x04\x18\x03\x00\x00\x00\x04\r" + // 0x04180300: 0x0000040D
+	"\x04#\x03\x06\x00\x00\x04\x0e" + // 0x04230306: 0x0000040E
+	"\x04\x18\x03\x06\x00\x00\x04\x19" + // 0x04180306: 0x00000419
+	"\x048\x03\x06\x00\x00\x049" + // 0x04380306: 0x00000439
+	"\x045\x03\x00\x00\x00\x04P" + // 0x04350300: 0x00000450
+	"\x045\x03\b\x00\x00\x04Q" + // 0x04350308: 0x00000451
+	"\x043\x03\x01\x00\x00\x04S" + // 0x04330301: 0x00000453
+	"\x04V\x03\b\x00\x00\x04W" + // 0x04560308: 0x00000457
+	"\x04:\x03\x01\x00\x00\x04\\" + // 0x043A0301: 0x0000045C
+	"\x048\x03\x00\x00\x00\x04]" + // 0x04380300: 0x0000045D
+	"\x04C\x03\x06\x00\x00\x04^" + // 0x04430306: 0x0000045E
+	"\x04t\x03\x0f\x00\x00\x04v" + // 0x0474030F: 0x00000476
+	"\x04u\x03\x0f\x00\x00\x04w" + // 0x0475030F: 0x00000477
+	"\x04\x16\x03\x06\x00\x00\x04\xc1" + // 0x04160306: 0x000004C1
+	"\x046\x03\x06\x00\x00\x04\xc2" + // 0x04360306: 0x000004C2
+	"\x04\x10\x03\x06\x00\x00\x04\xd0" + // 0x04100306: 0x000004D0
+	"\x040\x03\x06\x00\x00\x04\xd1" + // 0x04300306: 0x000004D1
+	"\x04\x10\x03\b\x00\x00\x04\xd2" + // 0x04100308: 0x000004D2
+	"\x040\x03\b\x00\x00\x04\xd3" + // 0x04300308: 0x000004D3
+	"\x04\x15\x03\x06\x00\x00\x04\xd6" + // 0x04150306: 0x000004D6
+	"\x045\x03\x06\x00\x00\x04\xd7" + // 0x04350306: 0x000004D7
+	"\x04\xd8\x03\b\x00\x00\x04\xda" + // 0x04D80308: 0x000004DA
+	"\x04\xd9\x03\b\x00\x00\x04\xdb" + // 0x04D90308: 0x000004DB
+	"\x04\x16\x03\b\x00\x00\x04\xdc" + // 0x04160308: 0x000004DC
+	"\x046\x03\b\x00\x00\x04\xdd" + // 0x04360308: 0x000004DD
+	"\x04\x17\x03\b\x00\x00\x04\xde" + // 0x04170308: 0x000004DE
+	"\x047\x03\b\x00\x00\x04\xdf" + // 0x04370308: 0x000004DF
+	"\x04\x18\x03\x04\x00\x00\x04\xe2" + // 0x04180304: 0x000004E2
+	"\x048\x03\x04\x00\x00\x04\xe3" + // 0x04380304: 0x000004E3
+	"\x04\x18\x03\b\x00\x00\x04\xe4" + // 0x04180308: 0x000004E4
+	"\x048\x03\b\x00\x00\x04\xe5" + // 0x04380308: 0x000004E5
+	"\x04\x1e\x03\b\x00\x00\x04\xe6" + // 0x041E0308: 0x000004E6
+	"\x04>\x03\b\x00\x00\x04\xe7" + // 0x043E0308: 0x000004E7
+	"\x04\xe8\x03\b\x00\x00\x04\xea" + // 0x04E80308: 0x000004EA
+	"\x04\xe9\x03\b\x00\x00\x04\xeb" + // 0x04E90308: 0x000004EB
+	"\x04-\x03\b\x00\x00\x04\xec" + // 0x042D0308: 0x000004EC
+	"\x04M\x03\b\x00\x00\x04\xed" + // 0x044D0308: 0x000004ED
+	"\x04#\x03\x04\x00\x00\x04\xee" + // 0x04230304: 0x000004EE
+	"\x04C\x03\x04\x00\x00\x04\xef" + // 0x04430304: 0x000004EF
+	"\x04#\x03\b\x00\x00\x04\xf0" + // 0x04230308: 0x000004F0
+	"\x04C\x03\b\x00\x00\x04\xf1" + // 0x04430308: 0x000004F1
+	"\x04#\x03\v\x00\x00\x04\xf2" + // 0x0423030B: 0x000004F2
+	"\x04C\x03\v\x00\x00\x04\xf3" + // 0x0443030B: 0x000004F3
+	"\x04'\x03\b\x00\x00\x04\xf4" + // 0x04270308: 0x000004F4
+	"\x04G\x03\b\x00\x00\x04\xf5" + // 0x04470308: 0x000004F5
+	"\x04+\x03\b\x00\x00\x04\xf8" + // 0x042B0308: 0x000004F8
+	"\x04K\x03\b\x00\x00\x04\xf9" + // 0x044B0308: 0x000004F9
+	"\x06'\x06S\x00\x00\x06\"" + // 0x06270653: 0x00000622
+	"\x06'\x06T\x00\x00\x06#" + // 0x06270654: 0x00000623
+	"\x06H\x06T\x00\x00\x06$" + // 0x06480654: 0x00000624
+	"\x06'\x06U\x00\x00\x06%" + // 0x06270655: 0x00000625
+	"\x06J\x06T\x00\x00\x06&" + // 0x064A0654: 0x00000626
+	"\x06\xd5\x06T\x00\x00\x06\xc0" + // 0x06D50654: 0x000006C0
+	"\x06\xc1\x06T\x00\x00\x06\xc2" + // 0x06C10654: 0x000006C2
+	"\x06\xd2\x06T\x00\x00\x06\xd3" + // 0x06D20654: 0x000006D3
+	"\t(\t<\x00\x00\t)" + // 0x0928093C: 0x00000929
+	"\t0\t<\x00\x00\t1" + // 0x0930093C: 0x00000931
+	"\t3\t<\x00\x00\t4" + // 0x0933093C: 0x00000934
+	"\t\xc7\t\xbe\x00\x00\t\xcb" + // 0x09C709BE: 0x000009CB
+	"\t\xc7\t\xd7\x00\x00\t\xcc" + // 0x09C709D7: 0x000009CC
+	"\vG\vV\x00\x00\vH" + // 0x0B470B56: 0x00000B48
+	"\vG\v>\x00\x00\vK" + // 0x0B470B3E: 0x00000B4B
+	"\vG\vW\x00\x00\vL" + // 0x0B470B57: 0x00000B4C
+	"\v\x92\v\xd7\x00\x00\v\x94" + // 0x0B920BD7: 0x00000B94
+	"\v\xc6\v\xbe\x00\x00\v\xca" + // 0x0BC60BBE: 0x00000BCA
+	"\v\xc7\v\xbe\x00\x00\v\xcb" + // 0x0BC70BBE: 0x00000BCB
+	"\v\xc6\v\xd7\x00\x00\v\xcc" + // 0x0BC60BD7: 0x00000BCC
+	"\fF\fV\x00\x00\fH" + // 0x0C460C56: 0x00000C48
+	"\f\xbf\f\xd5\x00\x00\f\xc0" + // 0x0CBF0CD5: 0x00000CC0
+	"\f\xc6\f\xd5\x00\x00\f\xc7" + // 0x0CC60CD5: 0x00000CC7
+	"\f\xc6\f\xd6\x00\x00\f\xc8" + // 0x0CC60CD6: 0x00000CC8
+	"\f\xc6\f\xc2\x00\x00\f\xca" + // 0x0CC60CC2: 0x00000CCA
+	"\f\xca\f\xd5\x00\x00\f\xcb" + // 0x0CCA0CD5: 0x00000CCB
+	"\rF\r>\x00\x00\rJ" + // 0x0D460D3E: 0x00000D4A
+	"\rG\r>\x00\x00\rK" + // 0x0D470D3E: 0x00000D4B
+	"\rF\rW\x00\x00\rL" + // 0x0D460D57: 0x00000D4C
+	"\r\xd9\r\xca\x00\x00\r\xda" + // 0x0DD90DCA: 0x00000DDA
+	"\r\xd9\r\xcf\x00\x00\r\xdc" + // 0x0DD90DCF: 0x00000DDC
+	"\r\xdc\r\xca\x00\x00\r\xdd" + // 0x0DDC0DCA: 0x00000DDD
+	"\r\xd9\r\xdf\x00\x00\r\xde" + // 0x0DD90DDF: 0x00000DDE
+	"\x10%\x10.\x00\x00\x10&" + // 0x1025102E: 0x00001026
+	"\x1b\x05\x1b5\x00\x00\x1b\x06" + // 0x1B051B35: 0x00001B06
+	"\x1b\a\x1b5\x00\x00\x1b\b" + // 0x1B071B35: 0x00001B08
+	"\x1b\t\x1b5\x00\x00\x1b\n" + // 0x1B091B35: 0x00001B0A
+	"\x1b\v\x1b5\x00\x00\x1b\f" + // 0x1B0B1B35: 0x00001B0C
+	"\x1b\r\x1b5\x00\x00\x1b\x0e" + // 0x1B0D1B35: 0x00001B0E
+	"\x1b\x11\x1b5\x00\x00\x1b\x12" + // 0x1B111B35: 0x00001B12
+	"\x1b:\x1b5\x00\x00\x1b;" + // 0x1B3A1B35: 0x00001B3B
+	"\x1b<\x1b5\x00\x00\x1b=" + // 0x1B3C1B35: 0x00001B3D
+	"\x1b>\x1b5\x00\x00\x1b@" + // 0x1B3E1B35: 0x00001B40
+	"\x1b?\x1b5\x00\x00\x1bA" + // 0x1B3F1B35: 0x00001B41
+	"\x1bB\x1b5\x00\x00\x1bC" + // 0x1B421B35: 0x00001B43
+	"\x00A\x03%\x00\x00\x1e\x00" + // 0x00410325: 0x00001E00
+	"\x00a\x03%\x00\x00\x1e\x01" + // 0x00610325: 0x00001E01
+	"\x00B\x03\a\x00\x00\x1e\x02" + // 0x00420307: 0x00001E02
+	"\x00b\x03\a\x00\x00\x1e\x03" + // 0x00620307: 0x00001E03
+	"\x00B\x03#\x00\x00\x1e\x04" + // 0x00420323: 0x00001E04
+	"\x00b\x03#\x00\x00\x1e\x05" + // 0x00620323: 0x00001E05
+	"\x00B\x031\x00\x00\x1e\x06" + // 0x00420331: 0x00001E06
+	"\x00b\x031\x00\x00\x1e\a" + // 0x00620331: 0x00001E07
+	"\x00\xc7\x03\x01\x00\x00\x1e\b" + // 0x00C70301: 0x00001E08
+	"\x00\xe7\x03\x01\x00\x00\x1e\t" + // 0x00E70301: 0x00001E09
+	"\x00D\x03\a\x00\x00\x1e\n" + // 0x00440307: 0x00001E0A
+	"\x00d\x03\a\x00\x00\x1e\v" + // 0x00640307: 0x00001E0B
+	"\x00D\x03#\x00\x00\x1e\f" + // 0x00440323: 0x00001E0C
+	"\x00d\x03#\x00\x00\x1e\r" + // 0x00640323: 0x00001E0D
+	"\x00D\x031\x00\x00\x1e\x0e" + // 0x00440331: 0x00001E0E
+	"\x00d\x031\x00\x00\x1e\x0f" + // 0x00640331: 0x00001E0F
+	"\x00D\x03'\x00\x00\x1e\x10" + // 0x00440327: 0x00001E10
+	"\x00d\x03'\x00\x00\x1e\x11" + // 0x00640327: 0x00001E11
+	"\x00D\x03-\x00\x00\x1e\x12" + // 0x0044032D: 0x00001E12
+	"\x00d\x03-\x00\x00\x1e\x13" + // 0x0064032D: 0x00001E13
+	"\x01\x12\x03\x00\x00\x00\x1e\x14" + // 0x01120300: 0x00001E14
+	"\x01\x13\x03\x00\x00\x00\x1e\x15" + // 0x01130300: 0x00001E15
+	"\x01\x12\x03\x01\x00\x00\x1e\x16" + // 0x01120301: 0x00001E16
+	"\x01\x13\x03\x01\x00\x00\x1e\x17" + // 0x01130301: 0x00001E17
+	"\x00E\x03-\x00\x00\x1e\x18" + // 0x0045032D: 0x00001E18
+	"\x00e\x03-\x00\x00\x1e\x19" + // 0x0065032D: 0x00001E19
+	"\x00E\x030\x00\x00\x1e\x1a" + // 0x00450330: 0x00001E1A
+	"\x00e\x030\x00\x00\x1e\x1b" + // 0x00650330: 0x00001E1B
+	"\x02(\x03\x06\x00\x00\x1e\x1c" + // 0x02280306: 0x00001E1C
+	"\x02)\x03\x06\x00\x00\x1e\x1d" + // 0x02290306: 0x00001E1D
+	"\x00F\x03\a\x00\x00\x1e\x1e" + // 0x00460307: 0x00001E1E
+	"\x00f\x03\a\x00\x00\x1e\x1f" + // 0x00660307: 0x00001E1F
+	"\x00G\x03\x04\x00\x00\x1e " + // 0x00470304: 0x00001E20
+	"\x00g\x03\x04\x00\x00\x1e!" + // 0x00670304: 0x00001E21
+	"\x00H\x03\a\x00\x00\x1e\"" + // 0x00480307: 0x00001E22
+	"\x00h\x03\a\x00\x00\x1e#" + // 0x00680307: 0x00001E23
+	"\x00H\x03#\x00\x00\x1e$" + // 0x00480323: 0x00001E24
+	"\x00h\x03#\x00\x00\x1e%" + // 0x00680323: 0x00001E25
+	"\x00H\x03\b\x00\x00\x1e&" + // 0x00480308: 0x00001E26
+	"\x00h\x03\b\x00\x00\x1e'" + // 0x00680308: 0x00001E27
+	"\x00H\x03'\x00\x00\x1e(" + // 0x00480327: 0x00001E28
+	"\x00h\x03'\x00\x00\x1e)" + // 0x00680327: 0x00001E29
+	"\x00H\x03.\x00\x00\x1e*" + // 0x0048032E: 0x00001E2A
+	"\x00h\x03.\x00\x00\x1e+" + // 0x0068032E: 0x00001E2B
+	"\x00I\x030\x00\x00\x1e," + // 0x00490330: 0x00001E2C
+	"\x00i\x030\x00\x00\x1e-" + // 0x00690330: 0x00001E2D
+	"\x00\xcf\x03\x01\x00\x00\x1e." + // 0x00CF0301: 0x00001E2E
+	"\x00\xef\x03\x01\x00\x00\x1e/" + // 0x00EF0301: 0x00001E2F
+	"\x00K\x03\x01\x00\x00\x1e0" + // 0x004B0301: 0x00001E30
+	"\x00k\x03\x01\x00\x00\x1e1" + // 0x006B0301: 0x00001E31
+	"\x00K\x03#\x00\x00\x1e2" + // 0x004B0323: 0x00001E32
+	"\x00k\x03#\x00\x00\x1e3" + // 0x006B0323: 0x00001E33
+	"\x00K\x031\x00\x00\x1e4" + // 0x004B0331: 0x00001E34
+	"\x00k\x031\x00\x00\x1e5" + // 0x006B0331: 0x00001E35
+	"\x00L\x03#\x00\x00\x1e6" + // 0x004C0323: 0x00001E36
+	"\x00l\x03#\x00\x00\x1e7" + // 0x006C0323: 0x00001E37
+	"\x1e6\x03\x04\x00\x00\x1e8" + // 0x1E360304: 0x00001E38
+	"\x1e7\x03\x04\x00\x00\x1e9" + // 0x1E370304: 0x00001E39
+	"\x00L\x031\x00\x00\x1e:" + // 0x004C0331: 0x00001E3A
+	"\x00l\x031\x00\x00\x1e;" + // 0x006C0331: 0x00001E3B
+	"\x00L\x03-\x00\x00\x1e<" + // 0x004C032D: 0x00001E3C
+	"\x00l\x03-\x00\x00\x1e=" + // 0x006C032D: 0x00001E3D
+	"\x00M\x03\x01\x00\x00\x1e>" + // 0x004D0301: 0x00001E3E
+	"\x00m\x03\x01\x00\x00\x1e?" + // 0x006D0301: 0x00001E3F
+	"\x00M\x03\a\x00\x00\x1e@" + // 0x004D0307: 0x00001E40
+	"\x00m\x03\a\x00\x00\x1eA" + // 0x006D0307: 0x00001E41
+	"\x00M\x03#\x00\x00\x1eB" + // 0x004D0323: 0x00001E42
+	"\x00m\x03#\x00\x00\x1eC" + // 0x006D0323: 0x00001E43
+	"\x00N\x03\a\x00\x00\x1eD" + // 0x004E0307: 0x00001E44
+	"\x00n\x03\a\x00\x00\x1eE" + // 0x006E0307: 0x00001E45
+	"\x00N\x03#\x00\x00\x1eF" + // 0x004E0323: 0x00001E46
+	"\x00n\x03#\x00\x00\x1eG" + // 0x006E0323: 0x00001E47
+	"\x00N\x031\x00\x00\x1eH" + // 0x004E0331: 0x00001E48
+	"\x00n\x031\x00\x00\x1eI" + // 0x006E0331: 0x00001E49
+	"\x00N\x03-\x00\x00\x1eJ" + // 0x004E032D: 0x00001E4A
+	"\x00n\x03-\x00\x00\x1eK" + // 0x006E032D: 0x00001E4B
+	"\x00\xd5\x03\x01\x00\x00\x1eL" + // 0x00D50301: 0x00001E4C
+	"\x00\xf5\x03\x01\x00\x00\x1eM" + // 0x00F50301: 0x00001E4D
+	"\x00\xd5\x03\b\x00\x00\x1eN" + // 0x00D50308: 0x00001E4E
+	"\x00\xf5\x03\b\x00\x00\x1eO" + // 0x00F50308: 0x00001E4F
+	"\x01L\x03\x00\x00\x00\x1eP" + // 0x014C0300: 0x00001E50
+	"\x01M\x03\x00\x00\x00\x1eQ" + // 0x014D0300: 0x00001E51
+	"\x01L\x03\x01\x00\x00\x1eR" + // 0x014C0301: 0x00001E52
+	"\x01M\x03\x01\x00\x00\x1eS" + // 0x014D0301: 0x00001E53
+	"\x00P\x03\x01\x00\x00\x1eT" + // 0x00500301: 0x00001E54
+	"\x00p\x03\x01\x00\x00\x1eU" + // 0x00700301: 0x00001E55
+	"\x00P\x03\a\x00\x00\x1eV" + // 0x00500307: 0x00001E56
+	"\x00p\x03\a\x00\x00\x1eW" + // 0x00700307: 0x00001E57
+	"\x00R\x03\a\x00\x00\x1eX" + // 0x00520307: 0x00001E58
+	"\x00r\x03\a\x00\x00\x1eY" + // 0x00720307: 0x00001E59
+	"\x00R\x03#\x00\x00\x1eZ" + // 0x00520323: 0x00001E5A
+	"\x00r\x03#\x00\x00\x1e[" + // 0x00720323: 0x00001E5B
+	"\x1eZ\x03\x04\x00\x00\x1e\\" + // 0x1E5A0304: 0x00001E5C
+	"\x1e[\x03\x04\x00\x00\x1e]" + // 0x1E5B0304: 0x00001E5D
+	"\x00R\x031\x00\x00\x1e^" + // 0x00520331: 0x00001E5E
+	"\x00r\x031\x00\x00\x1e_" + // 0x00720331: 0x00001E5F
+	"\x00S\x03\a\x00\x00\x1e`" + // 0x00530307: 0x00001E60
+	"\x00s\x03\a\x00\x00\x1ea" + // 0x00730307: 0x00001E61
+	"\x00S\x03#\x00\x00\x1eb" + // 0x00530323: 0x00001E62
+	"\x00s\x03#\x00\x00\x1ec" + // 0x00730323: 0x00001E63
+	"\x01Z\x03\a\x00\x00\x1ed" + // 0x015A0307: 0x00001E64
+	"\x01[\x03\a\x00\x00\x1ee" + // 0x015B0307: 0x00001E65
+	"\x01`\x03\a\x00\x00\x1ef" + // 0x01600307: 0x00001E66
+	"\x01a\x03\a\x00\x00\x1eg" + // 0x01610307: 0x00001E67
+	"\x1eb\x03\a\x00\x00\x1eh" + // 0x1E620307: 0x00001E68
+	"\x1ec\x03\a\x00\x00\x1ei" + // 0x1E630307: 0x00001E69
+	"\x00T\x03\a\x00\x00\x1ej" + // 0x00540307: 0x00001E6A
+	"\x00t\x03\a\x00\x00\x1ek" + // 0x00740307: 0x00001E6B
+	"\x00T\x03#\x00\x00\x1el" + // 0x00540323: 0x00001E6C
+	"\x00t\x03#\x00\x00\x1em" + // 0x00740323: 0x00001E6D
+	"\x00T\x031\x00\x00\x1en" + // 0x00540331: 0x00001E6E
+	"\x00t\x031\x00\x00\x1eo" + // 0x00740331: 0x00001E6F
+	"\x00T\x03-\x00\x00\x1ep" + // 0x0054032D: 0x00001E70
+	"\x00t\x03-\x00\x00\x1eq" + // 0x0074032D: 0x00001E71
+	"\x00U\x03$\x00\x00\x1er" + // 0x00550324: 0x00001E72
+	"\x00u\x03$\x00\x00\x1es" + // 0x00750324: 0x00001E73
+	"\x00U\x030\x00\x00\x1et" + // 0x00550330: 0x00001E74
+	"\x00u\x030\x00\x00\x1eu" + // 0x00750330: 0x00001E75
+	"\x00U\x03-\x00\x00\x1ev" + // 0x0055032D: 0x00001E76
+	"\x00u\x03-\x00\x00\x1ew" + // 0x0075032D: 0x00001E77
+	"\x01h\x03\x01\x00\x00\x1ex" + // 0x01680301: 0x00001E78
+	"\x01i\x03\x01\x00\x00\x1ey" + // 0x01690301: 0x00001E79
+	"\x01j\x03\b\x00\x00\x1ez" + // 0x016A0308: 0x00001E7A
+	"\x01k\x03\b\x00\x00\x1e{" + // 0x016B0308: 0x00001E7B
+	"\x00V\x03\x03\x00\x00\x1e|" + // 0x00560303: 0x00001E7C
+	"\x00v\x03\x03\x00\x00\x1e}" + // 0x00760303: 0x00001E7D
+	"\x00V\x03#\x00\x00\x1e~" + // 0x00560323: 0x00001E7E
+	"\x00v\x03#\x00\x00\x1e\u007f" + // 0x00760323: 0x00001E7F
+	"\x00W\x03\x00\x00\x00\x1e\x80" + // 0x00570300: 0x00001E80
+	"\x00w\x03\x00\x00\x00\x1e\x81" + // 0x00770300: 0x00001E81
+	"\x00W\x03\x01\x00\x00\x1e\x82" + // 0x00570301: 0x00001E82
+	"\x00w\x03\x01\x00\x00\x1e\x83" + // 0x00770301: 0x00001E83
+	"\x00W\x03\b\x00\x00\x1e\x84" + // 0x00570308: 0x00001E84
+	"\x00w\x03\b\x00\x00\x1e\x85" + // 0x00770308: 0x00001E85
+	"\x00W\x03\a\x00\x00\x1e\x86" + // 0x00570307: 0x00001E86
+	"\x00w\x03\a\x00\x00\x1e\x87" + // 0x00770307: 0x00001E87
+	"\x00W\x03#\x00\x00\x1e\x88" + // 0x00570323: 0x00001E88
+	"\x00w\x03#\x00\x00\x1e\x89" + // 0x00770323: 0x00001E89
+	"\x00X\x03\a\x00\x00\x1e\x8a" + // 0x00580307: 0x00001E8A
+	"\x00x\x03\a\x00\x00\x1e\x8b" + // 0x00780307: 0x00001E8B
+	"\x00X\x03\b\x00\x00\x1e\x8c" + // 0x00580308: 0x00001E8C
+	"\x00x\x03\b\x00\x00\x1e\x8d" + // 0x00780308: 0x00001E8D
+	"\x00Y\x03\a\x00\x00\x1e\x8e" + // 0x00590307: 0x00001E8E
+	"\x00y\x03\a\x00\x00\x1e\x8f" + // 0x00790307: 0x00001E8F
+	"\x00Z\x03\x02\x00\x00\x1e\x90" + // 0x005A0302: 0x00001E90
+	"\x00z\x03\x02\x00\x00\x1e\x91" + // 0x007A0302: 0x00001E91
+	"\x00Z\x03#\x00\x00\x1e\x92" + // 0x005A0323: 0x00001E92
+	"\x00z\x03#\x00\x00\x1e\x93" + // 0x007A0323: 0x00001E93
+	"\x00Z\x031\x00\x00\x1e\x94" + // 0x005A0331: 0x00001E94
+	"\x00z\x031\x00\x00\x1e\x95" + // 0x007A0331: 0x00001E95
+	"\x00h\x031\x00\x00\x1e\x96" + // 0x00680331: 0x00001E96
+	"\x00t\x03\b\x00\x00\x1e\x97" + // 0x00740308: 0x00001E97
+	"\x00w\x03\n\x00\x00\x1e\x98" + // 0x0077030A: 0x00001E98
+	"\x00y\x03\n\x00\x00\x1e\x99" + // 0x0079030A: 0x00001E99
+	"\x01\u007f\x03\a\x00\x00\x1e\x9b" + // 0x017F0307: 0x00001E9B
+	"\x00A\x03#\x00\x00\x1e\xa0" + // 0x00410323: 0x00001EA0
+	"\x00a\x03#\x00\x00\x1e\xa1" + // 0x00610323: 0x00001EA1
+	"\x00A\x03\t\x00\x00\x1e\xa2" + // 0x00410309: 0x00001EA2
+	"\x00a\x03\t\x00\x00\x1e\xa3" + // 0x00610309: 0x00001EA3
+	"\x00\xc2\x03\x01\x00\x00\x1e\xa4" + // 0x00C20301: 0x00001EA4
+	"\x00\xe2\x03\x01\x00\x00\x1e\xa5" + // 0x00E20301: 0x00001EA5
+	"\x00\xc2\x03\x00\x00\x00\x1e\xa6" + // 0x00C20300: 0x00001EA6
+	"\x00\xe2\x03\x00\x00\x00\x1e\xa7" + // 0x00E20300: 0x00001EA7
+	"\x00\xc2\x03\t\x00\x00\x1e\xa8" + // 0x00C20309: 0x00001EA8
+	"\x00\xe2\x03\t\x00\x00\x1e\xa9" + // 0x00E20309: 0x00001EA9
+	"\x00\xc2\x03\x03\x00\x00\x1e\xaa" + // 0x00C20303: 0x00001EAA
+	"\x00\xe2\x03\x03\x00\x00\x1e\xab" + // 0x00E20303: 0x00001EAB
+	"\x1e\xa0\x03\x02\x00\x00\x1e\xac" + // 0x1EA00302: 0x00001EAC
+	"\x1e\xa1\x03\x02\x00\x00\x1e\xad" + // 0x1EA10302: 0x00001EAD
+	"\x01\x02\x03\x01\x00\x00\x1e\xae" + // 0x01020301: 0x00001EAE
+	"\x01\x03\x03\x01\x00\x00\x1e\xaf" + // 0x01030301: 0x00001EAF
+	"\x01\x02\x03\x00\x00\x00\x1e\xb0" + // 0x01020300: 0x00001EB0
+	"\x01\x03\x03\x00\x00\x00\x1e\xb1" + // 0x01030300: 0x00001EB1
+	"\x01\x02\x03\t\x00\x00\x1e\xb2" + // 0x01020309: 0x00001EB2
+	"\x01\x03\x03\t\x00\x00\x1e\xb3" + // 0x01030309: 0x00001EB3
+	"\x01\x02\x03\x03\x00\x00\x1e\xb4" + // 0x01020303: 0x00001EB4
+	"\x01\x03\x03\x03\x00\x00\x1e\xb5" + // 0x01030303: 0x00001EB5
+	"\x1e\xa0\x03\x06\x00\x00\x1e\xb6" + // 0x1EA00306: 0x00001EB6
+	"\x1e\xa1\x03\x06\x00\x00\x1e\xb7" + // 0x1EA10306: 0x00001EB7
+	"\x00E\x03#\x00\x00\x1e\xb8" + // 0x00450323: 0x00001EB8
+	"\x00e\x03#\x00\x00\x1e\xb9" + // 0x00650323: 0x00001EB9
+	"\x00E\x03\t\x00\x00\x1e\xba" + // 0x00450309: 0x00001EBA
+	"\x00e\x03\t\x00\x00\x1e\xbb" + // 0x00650309: 0x00001EBB
+	"\x00E\x03\x03\x00\x00\x1e\xbc" + // 0x00450303: 0x00001EBC
+	"\x00e\x03\x03\x00\x00\x1e\xbd" + // 0x00650303: 0x00001EBD
+	"\x00\xca\x03\x01\x00\x00\x1e\xbe" + // 0x00CA0301: 0x00001EBE
+	"\x00\xea\x03\x01\x00\x00\x1e\xbf" + // 0x00EA0301: 0x00001EBF
+	"\x00\xca\x03\x00\x00\x00\x1e\xc0" + // 0x00CA0300: 0x00001EC0
+	"\x00\xea\x03\x00\x00\x00\x1e\xc1" + // 0x00EA0300: 0x00001EC1
+	"\x00\xca\x03\t\x00\x00\x1e\xc2" + // 0x00CA0309: 0x00001EC2
+	"\x00\xea\x03\t\x00\x00\x1e\xc3" + // 0x00EA0309: 0x00001EC3
+	"\x00\xca\x03\x03\x00\x00\x1e\xc4" + // 0x00CA0303: 0x00001EC4
+	"\x00\xea\x03\x03\x00\x00\x1e\xc5" + // 0x00EA0303: 0x00001EC5
+	"\x1e\xb8\x03\x02\x00\x00\x1e\xc6" + // 0x1EB80302: 0x00001EC6
+	"\x1e\xb9\x03\x02\x00\x00\x1e\xc7" + // 0x1EB90302: 0x00001EC7
+	"\x00I\x03\t\x00\x00\x1e\xc8" + // 0x00490309: 0x00001EC8
+	"\x00i\x03\t\x00\x00\x1e\xc9" + // 0x00690309: 0x00001EC9
+	"\x00I\x03#\x00\x00\x1e\xca" + // 0x00490323: 0x00001ECA
+	"\x00i\x03#\x00\x00\x1e\xcb" + // 0x00690323: 0x00001ECB
+	"\x00O\x03#\x00\x00\x1e\xcc" + // 0x004F0323: 0x00001ECC
+	"\x00o\x03#\x00\x00\x1e\xcd" + // 0x006F0323: 0x00001ECD
+	"\x00O\x03\t\x00\x00\x1e\xce" + // 0x004F0309: 0x00001ECE
+	"\x00o\x03\t\x00\x00\x1e\xcf" + // 0x006F0309: 0x00001ECF
+	"\x00\xd4\x03\x01\x00\x00\x1e\xd0" + // 0x00D40301: 0x00001ED0
+	"\x00\xf4\x03\x01\x00\x00\x1e\xd1" + // 0x00F40301: 0x00001ED1
+	"\x00\xd4\x03\x00\x00\x00\x1e\xd2" + // 0x00D40300: 0x00001ED2
+	"\x00\xf4\x03\x00\x00\x00\x1e\xd3" + // 0x00F40300: 0x00001ED3
+	"\x00\xd4\x03\t\x00\x00\x1e\xd4" + // 0x00D40309: 0x00001ED4
+	"\x00\xf4\x03\t\x00\x00\x1e\xd5" + // 0x00F40309: 0x00001ED5
+	"\x00\xd4\x03\x03\x00\x00\x1e\xd6" + // 0x00D40303: 0x00001ED6
+	"\x00\xf4\x03\x03\x00\x00\x1e\xd7" + // 0x00F40303: 0x00001ED7
+	"\x1e\xcc\x03\x02\x00\x00\x1e\xd8" + // 0x1ECC0302: 0x00001ED8
+	"\x1e\xcd\x03\x02\x00\x00\x1e\xd9" + // 0x1ECD0302: 0x00001ED9
+	"\x01\xa0\x03\x01\x00\x00\x1e\xda" + // 0x01A00301: 0x00001EDA
+	"\x01\xa1\x03\x01\x00\x00\x1e\xdb" + // 0x01A10301: 0x00001EDB
+	"\x01\xa0\x03\x00\x00\x00\x1e\xdc" + // 0x01A00300: 0x00001EDC
+	"\x01\xa1\x03\x00\x00\x00\x1e\xdd" + // 0x01A10300: 0x00001EDD
+	"\x01\xa0\x03\t\x00\x00\x1e\xde" + // 0x01A00309: 0x00001EDE
+	"\x01\xa1\x03\t\x00\x00\x1e\xdf" + // 0x01A10309: 0x00001EDF
+	"\x01\xa0\x03\x03\x00\x00\x1e\xe0" + // 0x01A00303: 0x00001EE0
+	"\x01\xa1\x03\x03\x00\x00\x1e\xe1" + // 0x01A10303: 0x00001EE1
+	"\x01\xa0\x03#\x00\x00\x1e\xe2" + // 0x01A00323: 0x00001EE2
+	"\x01\xa1\x03#\x00\x00\x1e\xe3" + // 0x01A10323: 0x00001EE3
+	"\x00U\x03#\x00\x00\x1e\xe4" + // 0x00550323: 0x00001EE4
+	"\x00u\x03#\x00\x00\x1e\xe5" + // 0x00750323: 0x00001EE5
+	"\x00U\x03\t\x00\x00\x1e\xe6" + // 0x00550309: 0x00001EE6
+	"\x00u\x03\t\x00\x00\x1e\xe7" + // 0x00750309: 0x00001EE7
+	"\x01\xaf\x03\x01\x00\x00\x1e\xe8" + // 0x01AF0301: 0x00001EE8
+	"\x01\xb0\x03\x01\x00\x00\x1e\xe9" + // 0x01B00301: 0x00001EE9
+	"\x01\xaf\x03\x00\x00\x00\x1e\xea" + // 0x01AF0300: 0x00001EEA
+	"\x01\xb0\x03\x00\x00\x00\x1e\xeb" + // 0x01B00300: 0x00001EEB
+	"\x01\xaf\x03\t\x00\x00\x1e\xec" + // 0x01AF0309: 0x00001EEC
+	"\x01\xb0\x03\t\x00\x00\x1e\xed" + // 0x01B00309: 0x00001EED
+	"\x01\xaf\x03\x03\x00\x00\x1e\xee" + // 0x01AF0303: 0x00001EEE
+	"\x01\xb0\x03\x03\x00\x00\x1e\xef" + // 0x01B00303: 0x00001EEF
+	"\x01\xaf\x03#\x00\x00\x1e\xf0" + // 0x01AF0323: 0x00001EF0
+	"\x01\xb0\x03#\x00\x00\x1e\xf1" + // 0x01B00323: 0x00001EF1
+	"\x00Y\x03\x00\x00\x00\x1e\xf2" + // 0x00590300: 0x00001EF2
+	"\x00y\x03\x00\x00\x00\x1e\xf3" + // 0x00790300: 0x00001EF3
+	"\x00Y\x03#\x00\x00\x1e\xf4" + // 0x00590323: 0x00001EF4
+	"\x00y\x03#\x00\x00\x1e\xf5" + // 0x00790323: 0x00001EF5
+	"\x00Y\x03\t\x00\x00\x1e\xf6" + // 0x00590309: 0x00001EF6
+	"\x00y\x03\t\x00\x00\x1e\xf7" + // 0x00790309: 0x00001EF7
+	"\x00Y\x03\x03\x00\x00\x1e\xf8" + // 0x00590303: 0x00001EF8
+	"\x00y\x03\x03\x00\x00\x1e\xf9" + // 0x00790303: 0x00001EF9
+	"\x03\xb1\x03\x13\x00\x00\x1f\x00" + // 0x03B10313: 0x00001F00
+	"\x03\xb1\x03\x14\x00\x00\x1f\x01" + // 0x03B10314: 0x00001F01
+	"\x1f\x00\x03\x00\x00\x00\x1f\x02" + // 0x1F000300: 0x00001F02
+	"\x1f\x01\x03\x00\x00\x00\x1f\x03" + // 0x1F010300: 0x00001F03
+	"\x1f\x00\x03\x01\x00\x00\x1f\x04" + // 0x1F000301: 0x00001F04
+	"\x1f\x01\x03\x01\x00\x00\x1f\x05" + // 0x1F010301: 0x00001F05
+	"\x1f\x00\x03B\x00\x00\x1f\x06" + // 0x1F000342: 0x00001F06
+	"\x1f\x01\x03B\x00\x00\x1f\a" + // 0x1F010342: 0x00001F07
+	"\x03\x91\x03\x13\x00\x00\x1f\b" + // 0x03910313: 0x00001F08
+	"\x03\x91\x03\x14\x00\x00\x1f\t" + // 0x03910314: 0x00001F09
+	"\x1f\b\x03\x00\x00\x00\x1f\n" + // 0x1F080300: 0x00001F0A
+	"\x1f\t\x03\x00\x00\x00\x1f\v" + // 0x1F090300: 0x00001F0B
+	"\x1f\b\x03\x01\x00\x00\x1f\f" + // 0x1F080301: 0x00001F0C
+	"\x1f\t\x03\x01\x00\x00\x1f\r" + // 0x1F090301: 0x00001F0D
+	"\x1f\b\x03B\x00\x00\x1f\x0e" + // 0x1F080342: 0x00001F0E
+	"\x1f\t\x03B\x00\x00\x1f\x0f" + // 0x1F090342: 0x00001F0F
+	"\x03\xb5\x03\x13\x00\x00\x1f\x10" + // 0x03B50313: 0x00001F10
+	"\x03\xb5\x03\x14\x00\x00\x1f\x11" + // 0x03B50314: 0x00001F11
+	"\x1f\x10\x03\x00\x00\x00\x1f\x12" + // 0x1F100300: 0x00001F12
+	"\x1f\x11\x03\x00\x00\x00\x1f\x13" + // 0x1F110300: 0x00001F13
+	"\x1f\x10\x03\x01\x00\x00\x1f\x14" + // 0x1F100301: 0x00001F14
+	"\x1f\x11\x03\x01\x00\x00\x1f\x15" + // 0x1F110301: 0x00001F15
+	"\x03\x95\x03\x13\x00\x00\x1f\x18" + // 0x03950313: 0x00001F18
+	"\x03\x95\x03\x14\x00\x00\x1f\x19" + // 0x03950314: 0x00001F19
+	"\x1f\x18\x03\x00\x00\x00\x1f\x1a" + // 0x1F180300: 0x00001F1A
+	"\x1f\x19\x03\x00\x00\x00\x1f\x1b" + // 0x1F190300: 0x00001F1B
+	"\x1f\x18\x03\x01\x00\x00\x1f\x1c" + // 0x1F180301: 0x00001F1C
+	"\x1f\x19\x03\x01\x00\x00\x1f\x1d" + // 0x1F190301: 0x00001F1D
+	"\x03\xb7\x03\x13\x00\x00\x1f " + // 0x03B70313: 0x00001F20
+	"\x03\xb7\x03\x14\x00\x00\x1f!" + // 0x03B70314: 0x00001F21
+	"\x1f \x03\x00\x00\x00\x1f\"" + // 0x1F200300: 0x00001F22
+	"\x1f!\x03\x00\x00\x00\x1f#" + // 0x1F210300: 0x00001F23
+	"\x1f \x03\x01\x00\x00\x1f$" + // 0x1F200301: 0x00001F24
+	"\x1f!\x03\x01\x00\x00\x1f%" + // 0x1F210301: 0x00001F25
+	"\x1f \x03B\x00\x00\x1f&" + // 0x1F200342: 0x00001F26
+	"\x1f!\x03B\x00\x00\x1f'" + // 0x1F210342: 0x00001F27
+	"\x03\x97\x03\x13\x00\x00\x1f(" + // 0x03970313: 0x00001F28
+	"\x03\x97\x03\x14\x00\x00\x1f)" + // 0x03970314: 0x00001F29
+	"\x1f(\x03\x00\x00\x00\x1f*" + // 0x1F280300: 0x00001F2A
+	"\x1f)\x03\x00\x00\x00\x1f+" + // 0x1F290300: 0x00001F2B
+	"\x1f(\x03\x01\x00\x00\x1f," + // 0x1F280301: 0x00001F2C
+	"\x1f)\x03\x01\x00\x00\x1f-" + // 0x1F290301: 0x00001F2D
+	"\x1f(\x03B\x00\x00\x1f." + // 0x1F280342: 0x00001F2E
+	"\x1f)\x03B\x00\x00\x1f/" + // 0x1F290342: 0x00001F2F
+	"\x03\xb9\x03\x13\x00\x00\x1f0" + // 0x03B90313: 0x00001F30
+	"\x03\xb9\x03\x14\x00\x00\x1f1" + // 0x03B90314: 0x00001F31
+	"\x1f0\x03\x00\x00\x00\x1f2" + // 0x1F300300: 0x00001F32
+	"\x1f1\x03\x00\x00\x00\x1f3" + // 0x1F310300: 0x00001F33
+	"\x1f0\x03\x01\x00\x00\x1f4" + // 0x1F300301: 0x00001F34
+	"\x1f1\x03\x01\x00\x00\x1f5" + // 0x1F310301: 0x00001F35
+	"\x1f0\x03B\x00\x00\x1f6" + // 0x1F300342: 0x00001F36
+	"\x1f1\x03B\x00\x00\x1f7" + // 0x1F310342: 0x00001F37
+	"\x03\x99\x03\x13\x00\x00\x1f8" + // 0x03990313: 0x00001F38
+	"\x03\x99\x03\x14\x00\x00\x1f9" + // 0x03990314: 0x00001F39
+	"\x1f8\x03\x00\x00\x00\x1f:" + // 0x1F380300: 0x00001F3A
+	"\x1f9\x03\x00\x00\x00\x1f;" + // 0x1F390300: 0x00001F3B
+	"\x1f8\x03\x01\x00\x00\x1f<" + // 0x1F380301: 0x00001F3C
+	"\x1f9\x03\x01\x00\x00\x1f=" + // 0x1F390301: 0x00001F3D
+	"\x1f8\x03B\x00\x00\x1f>" + // 0x1F380342: 0x00001F3E
+	"\x1f9\x03B\x00\x00\x1f?" + // 0x1F390342: 0x00001F3F
+	"\x03\xbf\x03\x13\x00\x00\x1f@" + // 0x03BF0313: 0x00001F40
+	"\x03\xbf\x03\x14\x00\x00\x1fA" + // 0x03BF0314: 0x00001F41
+	"\x1f@\x03\x00\x00\x00\x1fB" + // 0x1F400300: 0x00001F42
+	"\x1fA\x03\x00\x00\x00\x1fC" + // 0x1F410300: 0x00001F43
+	"\x1f@\x03\x01\x00\x00\x1fD" + // 0x1F400301: 0x00001F44
+	"\x1fA\x03\x01\x00\x00\x1fE" + // 0x1F410301: 0x00001F45
+	"\x03\x9f\x03\x13\x00\x00\x1fH" + // 0x039F0313: 0x00001F48
+	"\x03\x9f\x03\x14\x00\x00\x1fI" + // 0x039F0314: 0x00001F49
+	"\x1fH\x03\x00\x00\x00\x1fJ" + // 0x1F480300: 0x00001F4A
+	"\x1fI\x03\x00\x00\x00\x1fK" + // 0x1F490300: 0x00001F4B
+	"\x1fH\x03\x01\x00\x00\x1fL" + // 0x1F480301: 0x00001F4C
+	"\x1fI\x03\x01\x00\x00\x1fM" + // 0x1F490301: 0x00001F4D
+	"\x03\xc5\x03\x13\x00\x00\x1fP" + // 0x03C50313: 0x00001F50
+	"\x03\xc5\x03\x14\x00\x00\x1fQ" + // 0x03C50314: 0x00001F51
+	"\x1fP\x03\x00\x00\x00\x1fR" + // 0x1F500300: 0x00001F52
+	"\x1fQ\x03\x00\x00\x00\x1fS" + // 0x1F510300: 0x00001F53
+	"\x1fP\x03\x01\x00\x00\x1fT" + // 0x1F500301: 0x00001F54
+	"\x1fQ\x03\x01\x00\x00\x1fU" + // 0x1F510301: 0x00001F55
+	"\x1fP\x03B\x00\x00\x1fV" + // 0x1F500342: 0x00001F56
+	"\x1fQ\x03B\x00\x00\x1fW" + // 0x1F510342: 0x00001F57
+	"\x03\xa5\x03\x14\x00\x00\x1fY" + // 0x03A50314: 0x00001F59
+	"\x1fY\x03\x00\x00\x00\x1f[" + // 0x1F590300: 0x00001F5B
+	"\x1fY\x03\x01\x00\x00\x1f]" + // 0x1F590301: 0x00001F5D
+	"\x1fY\x03B\x00\x00\x1f_" + // 0x1F590342: 0x00001F5F
+	"\x03\xc9\x03\x13\x00\x00\x1f`" + // 0x03C90313: 0x00001F60
+	"\x03\xc9\x03\x14\x00\x00\x1fa" + // 0x03C90314: 0x00001F61
+	"\x1f`\x03\x00\x00\x00\x1fb" + // 0x1F600300: 0x00001F62
+	"\x1fa\x03\x00\x00\x00\x1fc" + // 0x1F610300: 0x00001F63
+	"\x1f`\x03\x01\x00\x00\x1fd" + // 0x1F600301: 0x00001F64
+	"\x1fa\x03\x01\x00\x00\x1fe" + // 0x1F610301: 0x00001F65
+	"\x1f`\x03B\x00\x00\x1ff" + // 0x1F600342: 0x00001F66
+	"\x1fa\x03B\x00\x00\x1fg" + // 0x1F610342: 0x00001F67
+	"\x03\xa9\x03\x13\x00\x00\x1fh" + // 0x03A90313: 0x00001F68
+	"\x03\xa9\x03\x14\x00\x00\x1fi" + // 0x03A90314: 0x00001F69
+	"\x1fh\x03\x00\x00\x00\x1fj" + // 0x1F680300: 0x00001F6A
+	"\x1fi\x03\x00\x00\x00\x1fk" + // 0x1F690300: 0x00001F6B
+	"\x1fh\x03\x01\x00\x00\x1fl" + // 0x1F680301: 0x00001F6C
+	"\x1fi\x03\x01\x00\x00\x1fm" + // 0x1F690301: 0x00001F6D
+	"\x1fh\x03B\x00\x00\x1fn" + // 0x1F680342: 0x00001F6E
+	"\x1fi\x03B\x00\x00\x1fo" + // 0x1F690342: 0x00001F6F
+	"\x03\xb1\x03\x00\x00\x00\x1fp" + // 0x03B10300: 0x00001F70
+	"\x03\xb5\x03\x00\x00\x00\x1fr" + // 0x03B50300: 0x00001F72
+	"\x03\xb7\x03\x00\x00\x00\x1ft" + // 0x03B70300: 0x00001F74
+	"\x03\xb9\x03\x00\x00\x00\x1fv" + // 0x03B90300: 0x00001F76
+	"\x03\xbf\x03\x00\x00\x00\x1fx" + // 0x03BF0300: 0x00001F78
+	"\x03\xc5\x03\x00\x00\x00\x1fz" + // 0x03C50300: 0x00001F7A
+	"\x03\xc9\x03\x00\x00\x00\x1f|" + // 0x03C90300: 0x00001F7C
+	"\x1f\x00\x03E\x00\x00\x1f\x80" + // 0x1F000345: 0x00001F80
+	"\x1f\x01\x03E\x00\x00\x1f\x81" + // 0x1F010345: 0x00001F81
+	"\x1f\x02\x03E\x00\x00\x1f\x82" + // 0x1F020345: 0x00001F82
+	"\x1f\x03\x03E\x00\x00\x1f\x83" + // 0x1F030345: 0x00001F83
+	"\x1f\x04\x03E\x00\x00\x1f\x84" + // 0x1F040345: 0x00001F84
+	"\x1f\x05\x03E\x00\x00\x1f\x85" + // 0x1F050345: 0x00001F85
+	"\x1f\x06\x03E\x00\x00\x1f\x86" + // 0x1F060345: 0x00001F86
+	"\x1f\a\x03E\x00\x00\x1f\x87" + // 0x1F070345: 0x00001F87
+	"\x1f\b\x03E\x00\x00\x1f\x88" + // 0x1F080345: 0x00001F88
+	"\x1f\t\x03E\x00\x00\x1f\x89" + // 0x1F090345: 0x00001F89
+	"\x1f\n\x03E\x00\x00\x1f\x8a" + // 0x1F0A0345: 0x00001F8A
+	"\x1f\v\x03E\x00\x00\x1f\x8b" + // 0x1F0B0345: 0x00001F8B
+	"\x1f\f\x03E\x00\x00\x1f\x8c" + // 0x1F0C0345: 0x00001F8C
+	"\x1f\r\x03E\x00\x00\x1f\x8d" + // 0x1F0D0345: 0x00001F8D
+	"\x1f\x0e\x03E\x00\x00\x1f\x8e" + // 0x1F0E0345: 0x00001F8E
+	"\x1f\x0f\x03E\x00\x00\x1f\x8f" + // 0x1F0F0345: 0x00001F8F
+	"\x1f \x03E\x00\x00\x1f\x90" + // 0x1F200345: 0x00001F90
+	"\x1f!\x03E\x00\x00\x1f\x91" + // 0x1F210345: 0x00001F91
+	"\x1f\"\x03E\x00\x00\x1f\x92" + // 0x1F220345: 0x00001F92
+	"\x1f#\x03E\x00\x00\x1f\x93" + // 0x1F230345: 0x00001F93
+	"\x1f$\x03E\x00\x00\x1f\x94" + // 0x1F240345: 0x00001F94
+	"\x1f%\x03E\x00\x00\x1f\x95" + // 0x1F250345: 0x00001F95
+	"\x1f&\x03E\x00\x00\x1f\x96" + // 0x1F260345: 0x00001F96
+	"\x1f'\x03E\x00\x00\x1f\x97" + // 0x1F270345: 0x00001F97
+	"\x1f(\x03E\x00\x00\x1f\x98" + // 0x1F280345: 0x00001F98
+	"\x1f)\x03E\x00\x00\x1f\x99" + // 0x1F290345: 0x00001F99
+	"\x1f*\x03E\x00\x00\x1f\x9a" + // 0x1F2A0345: 0x00001F9A
+	"\x1f+\x03E\x00\x00\x1f\x9b" + // 0x1F2B0345: 0x00001F9B
+	"\x1f,\x03E\x00\x00\x1f\x9c" + // 0x1F2C0345: 0x00001F9C
+	"\x1f-\x03E\x00\x00\x1f\x9d" + // 0x1F2D0345: 0x00001F9D
+	"\x1f.\x03E\x00\x00\x1f\x9e" + // 0x1F2E0345: 0x00001F9E
+	"\x1f/\x03E\x00\x00\x1f\x9f" + // 0x1F2F0345: 0x00001F9F
+	"\x1f`\x03E\x00\x00\x1f\xa0" + // 0x1F600345: 0x00001FA0
+	"\x1fa\x03E\x00\x00\x1f\xa1" + // 0x1F610345: 0x00001FA1
+	"\x1fb\x03E\x00\x00\x1f\xa2" + // 0x1F620345: 0x00001FA2
+	"\x1fc\x03E\x00\x00\x1f\xa3" + // 0x1F630345: 0x00001FA3
+	"\x1fd\x03E\x00\x00\x1f\xa4" + // 0x1F640345: 0x00001FA4
+	"\x1fe\x03E\x00\x00\x1f\xa5" + // 0x1F650345: 0x00001FA5
+	"\x1ff\x03E\x00\x00\x1f\xa6" + // 0x1F660345: 0x00001FA6
+	"\x1fg\x03E\x00\x00\x1f\xa7" + // 0x1F670345: 0x00001FA7
+	"\x1fh\x03E\x00\x00\x1f\xa8" + // 0x1F680345: 0x00001FA8
+	"\x1fi\x03E\x00\x00\x1f\xa9" + // 0x1F690345: 0x00001FA9
+	"\x1fj\x03E\x00\x00\x1f\xaa" + // 0x1F6A0345: 0x00001FAA
+	"\x1fk\x03E\x00\x00\x1f\xab" + // 0x1F6B0345: 0x00001FAB
+	"\x1fl\x03E\x00\x00\x1f\xac" + // 0x1F6C0345: 0x00001FAC
+	"\x1fm\x03E\x00\x00\x1f\xad" + // 0x1F6D0345: 0x00001FAD
+	"\x1fn\x03E\x00\x00\x1f\xae" + // 0x1F6E0345: 0x00001FAE
+	"\x1fo\x03E\x00\x00\x1f\xaf" + // 0x1F6F0345: 0x00001FAF
+	"\x03\xb1\x03\x06\x00\x00\x1f\xb0" + // 0x03B10306: 0x00001FB0
+	"\x03\xb1\x03\x04\x00\x00\x1f\xb1" + // 0x03B10304: 0x00001FB1
+	"\x1fp\x03E\x00\x00\x1f\xb2" + // 0x1F700345: 0x00001FB2
+	"\x03\xb1\x03E\x00\x00\x1f\xb3" + // 0x03B10345: 0x00001FB3
+	"\x03\xac\x03E\x00\x00\x1f\xb4" + // 0x03AC0345: 0x00001FB4
+	"\x03\xb1\x03B\x00\x00\x1f\xb6" + // 0x03B10342: 0x00001FB6
+	"\x1f\xb6\x03E\x00\x00\x1f\xb7" + // 0x1FB60345: 0x00001FB7
+	"\x03\x91\x03\x06\x00\x00\x1f\xb8" + // 0x03910306: 0x00001FB8
+	"\x03\x91\x03\x04\x00\x00\x1f\xb9" + // 0x03910304: 0x00001FB9
+	"\x03\x91\x03\x00\x00\x00\x1f\xba" + // 0x03910300: 0x00001FBA
+	"\x03\x91\x03E\x00\x00\x1f\xbc" + // 0x03910345: 0x00001FBC
+	"\x00\xa8\x03B\x00\x00\x1f\xc1" + // 0x00A80342: 0x00001FC1
+	"\x1ft\x03E\x00\x00\x1f\xc2" + // 0x1F740345: 0x00001FC2
+	"\x03\xb7\x03E\x00\x00\x1f\xc3" + // 0x03B70345: 0x00001FC3
+	"\x03\xae\x03E\x00\x00\x1f\xc4" + // 0x03AE0345: 0x00001FC4
+	"\x03\xb7\x03B\x00\x00\x1f\xc6" + // 0x03B70342: 0x00001FC6
+	"\x1f\xc6\x03E\x00\x00\x1f\xc7" + // 0x1FC60345: 0x00001FC7
+	"\x03\x95\x03\x00\x00\x00\x1f\xc8" + // 0x03950300: 0x00001FC8
+	"\x03\x97\x03\x00\x00\x00\x1f\xca" + // 0x03970300: 0x00001FCA
+	"\x03\x97\x03E\x00\x00\x1f\xcc" + // 0x03970345: 0x00001FCC
+	"\x1f\xbf\x03\x00\x00\x00\x1f\xcd" + // 0x1FBF0300: 0x00001FCD
+	"\x1f\xbf\x03\x01\x00\x00\x1f\xce" + // 0x1FBF0301: 0x00001FCE
+	"\x1f\xbf\x03B\x00\x00\x1f\xcf" + // 0x1FBF0342: 0x00001FCF
+	"\x03\xb9\x03\x06\x00\x00\x1f\xd0" + // 0x03B90306: 0x00001FD0
+	"\x03\xb9\x03\x04\x00\x00\x1f\xd1" + // 0x03B90304: 0x00001FD1
+	"\x03\xca\x03\x00\x00\x00\x1f\xd2" + // 0x03CA0300: 0x00001FD2
+	"\x03\xb9\x03B\x00\x00\x1f\xd6" + // 0x03B90342: 0x00001FD6
+	"\x03\xca\x03B\x00\x00\x1f\xd7" + // 0x03CA0342: 0x00001FD7
+	"\x03\x99\x03\x06\x00\x00\x1f\xd8" + // 0x03990306: 0x00001FD8
+	"\x03\x99\x03\x04\x00\x00\x1f\xd9" + // 0x03990304: 0x00001FD9
+	"\x03\x99\x03\x00\x00\x00\x1f\xda" + // 0x03990300: 0x00001FDA
+	"\x1f\xfe\x03\x00\x00\x00\x1f\xdd" + // 0x1FFE0300: 0x00001FDD
+	"\x1f\xfe\x03\x01\x00\x00\x1f\xde" + // 0x1FFE0301: 0x00001FDE
+	"\x1f\xfe\x03B\x00\x00\x1f\xdf" + // 0x1FFE0342: 0x00001FDF
+	"\x03\xc5\x03\x06\x00\x00\x1f\xe0" + // 0x03C50306: 0x00001FE0
+	"\x03\xc5\x03\x04\x00\x00\x1f\xe1" + // 0x03C50304: 0x00001FE1
+	"\x03\xcb\x03\x00\x00\x00\x1f\xe2" + // 0x03CB0300: 0x00001FE2
+	"\x03\xc1\x03\x13\x00\x00\x1f\xe4" + // 0x03C10313: 0x00001FE4
+	"\x03\xc1\x03\x14\x00\x00\x1f\xe5" + // 0x03C10314: 0x00001FE5
+	"\x03\xc5\x03B\x00\x00\x1f\xe6" + // 0x03C50342: 0x00001FE6
+	"\x03\xcb\x03B\x00\x00\x1f\xe7" + // 0x03CB0342: 0x00001FE7
+	"\x03\xa5\x03\x06\x00\x00\x1f\xe8" + // 0x03A50306: 0x00001FE8
+	"\x03\xa5\x03\x04\x00\x00\x1f\xe9" + // 0x03A50304: 0x00001FE9
+	"\x03\xa5\x03\x00\x00\x00\x1f\xea" + // 0x03A50300: 0x00001FEA
+	"\x03\xa1\x03\x14\x00\x00\x1f\xec" + // 0x03A10314: 0x00001FEC
+	"\x00\xa8\x03\x00\x00\x00\x1f\xed" + // 0x00A80300: 0x00001FED
+	"\x1f|\x03E\x00\x00\x1f\xf2" + // 0x1F7C0345: 0x00001FF2
+	"\x03\xc9\x03E\x00\x00\x1f\xf3" + // 0x03C90345: 0x00001FF3
+	"\x03\xce\x03E\x00\x00\x1f\xf4" + // 0x03CE0345: 0x00001FF4
+	"\x03\xc9\x03B\x00\x00\x1f\xf6" + // 0x03C90342: 0x00001FF6
+	"\x1f\xf6\x03E\x00\x00\x1f\xf7" + // 0x1FF60345: 0x00001FF7
+	"\x03\x9f\x03\x00\x00\x00\x1f\xf8" + // 0x039F0300: 0x00001FF8
+	"\x03\xa9\x03\x00\x00\x00\x1f\xfa" + // 0x03A90300: 0x00001FFA
+	"\x03\xa9\x03E\x00\x00\x1f\xfc" + // 0x03A90345: 0x00001FFC
+	"!\x90\x038\x00\x00!\x9a" + // 0x21900338: 0x0000219A
+	"!\x92\x038\x00\x00!\x9b" + // 0x21920338: 0x0000219B
+	"!\x94\x038\x00\x00!\xae" + // 0x21940338: 0x000021AE
+	"!\xd0\x038\x00\x00!\xcd" + // 0x21D00338: 0x000021CD
+	"!\xd4\x038\x00\x00!\xce" + // 0x21D40338: 0x000021CE
+	"!\xd2\x038\x00\x00!\xcf" + // 0x21D20338: 0x000021CF
+	"\"\x03\x038\x00\x00\"\x04" + // 0x22030338: 0x00002204
+	"\"\b\x038\x00\x00\"\t" + // 0x22080338: 0x00002209
+	"\"\v\x038\x00\x00\"\f" + // 0x220B0338: 0x0000220C
+	"\"#\x038\x00\x00\"$" + // 0x22230338: 0x00002224
+	"\"%\x038\x00\x00\"&" + // 0x22250338: 0x00002226
+	"\"<\x038\x00\x00\"A" + // 0x223C0338: 0x00002241
+	"\"C\x038\x00\x00\"D" + // 0x22430338: 0x00002244
+	"\"E\x038\x00\x00\"G" + // 0x22450338: 0x00002247
+	"\"H\x038\x00\x00\"I" + // 0x22480338: 0x00002249
+	"\x00=\x038\x00\x00\"`" + // 0x003D0338: 0x00002260
+	"\"a\x038\x00\x00\"b" + // 0x22610338: 0x00002262
+	"\"M\x038\x00\x00\"m" + // 0x224D0338: 0x0000226D
+	"\x00<\x038\x00\x00\"n" + // 0x003C0338: 0x0000226E
+	"\x00>\x038\x00\x00\"o" + // 0x003E0338: 0x0000226F
+	"\"d\x038\x00\x00\"p" + // 0x22640338: 0x00002270
+	"\"e\x038\x00\x00\"q" + // 0x22650338: 0x00002271
+	"\"r\x038\x00\x00\"t" + // 0x22720338: 0x00002274
+	"\"s\x038\x00\x00\"u" + // 0x22730338: 0x00002275
+	"\"v\x038\x00\x00\"x" + // 0x22760338: 0x00002278
+	"\"w\x038\x00\x00\"y" + // 0x22770338: 0x00002279
+	"\"z\x038\x00\x00\"\x80" + // 0x227A0338: 0x00002280
+	"\"{\x038\x00\x00\"\x81" + // 0x227B0338: 0x00002281
+	"\"\x82\x038\x00\x00\"\x84" + // 0x22820338: 0x00002284
+	"\"\x83\x038\x00\x00\"\x85" + // 0x22830338: 0x00002285
+	"\"\x86\x038\x00\x00\"\x88" + // 0x22860338: 0x00002288
+	"\"\x87\x038\x00\x00\"\x89" + // 0x22870338: 0x00002289
+	"\"\xa2\x038\x00\x00\"\xac" + // 0x22A20338: 0x000022AC
+	"\"\xa8\x038\x00\x00\"\xad" + // 0x22A80338: 0x000022AD
+	"\"\xa9\x038\x00\x00\"\xae" + // 0x22A90338: 0x000022AE
+	"\"\xab\x038\x00\x00\"\xaf" + // 0x22AB0338: 0x000022AF
+	"\"|\x038\x00\x00\"\xe0" + // 0x227C0338: 0x000022E0
+	"\"}\x038\x00\x00\"\xe1" + // 0x227D0338: 0x000022E1
+	"\"\x91\x038\x00\x00\"\xe2" + // 0x22910338: 0x000022E2
+	"\"\x92\x038\x00\x00\"\xe3" + // 0x22920338: 0x000022E3
+	"\"\xb2\x038\x00\x00\"\xea" + // 0x22B20338: 0x000022EA
+	"\"\xb3\x038\x00\x00\"\xeb" + // 0x22B30338: 0x000022EB
+	"\"\xb4\x038\x00\x00\"\xec" + // 0x22B40338: 0x000022EC
+	"\"\xb5\x038\x00\x00\"\xed" + // 0x22B50338: 0x000022ED
+	"0K0\x99\x00\x000L" + // 0x304B3099: 0x0000304C
+	"0M0\x99\x00\x000N" + // 0x304D3099: 0x0000304E
+	"0O0\x99\x00\x000P" + // 0x304F3099: 0x00003050
+	"0Q0\x99\x00\x000R" + // 0x30513099: 0x00003052
+	"0S0\x99\x00\x000T" + // 0x30533099: 0x00003054
+	"0U0\x99\x00\x000V" + // 0x30553099: 0x00003056
+	"0W0\x99\x00\x000X" + // 0x30573099: 0x00003058
+	"0Y0\x99\x00\x000Z" + // 0x30593099: 0x0000305A
+	"0[0\x99\x00\x000\\" + // 0x305B3099: 0x0000305C
+	"0]0\x99\x00\x000^" + // 0x305D3099: 0x0000305E
+	"0_0\x99\x00\x000`" + // 0x305F3099: 0x00003060
+	"0a0\x99\x00\x000b" + // 0x30613099: 0x00003062
+	"0d0\x99\x00\x000e" + // 0x30643099: 0x00003065
+	"0f0\x99\x00\x000g" + // 0x30663099: 0x00003067
+	"0h0\x99\x00\x000i" + // 0x30683099: 0x00003069
+	"0o0\x99\x00\x000p" + // 0x306F3099: 0x00003070
+	"0o0\x9a\x00\x000q" + // 0x306F309A: 0x00003071
+	"0r0\x99\x00\x000s" + // 0x30723099: 0x00003073
+	"0r0\x9a\x00\x000t" + // 0x3072309A: 0x00003074
+	"0u0\x99\x00\x000v" + // 0x30753099: 0x00003076
+	"0u0\x9a\x00\x000w" + // 0x3075309A: 0x00003077
+	"0x0\x99\x00\x000y" + // 0x30783099: 0x00003079
+	"0x0\x9a\x00\x000z" + // 0x3078309A: 0x0000307A
+	"0{0\x99\x00\x000|" + // 0x307B3099: 0x0000307C
+	"0{0\x9a\x00\x000}" + // 0x307B309A: 0x0000307D
+	"0F0\x99\x00\x000\x94" + // 0x30463099: 0x00003094
+	"0\x9d0\x99\x00\x000\x9e" + // 0x309D3099: 0x0000309E
+	"0\xab0\x99\x00\x000\xac" + // 0x30AB3099: 0x000030AC
+	"0\xad0\x99\x00\x000\xae" + // 0x30AD3099: 0x000030AE
+	"0\xaf0\x99\x00\x000\xb0" + // 0x30AF3099: 0x000030B0
+	"0\xb10\x99\x00\x000\xb2" + // 0x30B13099: 0x000030B2
+	"0\xb30\x99\x00\x000\xb4" + // 0x30B33099: 0x000030B4
+	"0\xb50\x99\x00\x000\xb6" + // 0x30B53099: 0x000030B6
+	"0\xb70\x99\x00\x000\xb8" + // 0x30B73099: 0x000030B8
+	"0\xb90\x99\x00\x000\xba" + // 0x30B93099: 0x000030BA
+	"0\xbb0\x99\x00\x000\xbc" + // 0x30BB3099: 0x000030BC
+	"0\xbd0\x99\x00\x000\xbe" + // 0x30BD3099: 0x000030BE
+	"0\xbf0\x99\x00\x000\xc0" + // 0x30BF3099: 0x000030C0
+	"0\xc10\x99\x00\x000\xc2" + // 0x30C13099: 0x000030C2
+	"0\xc40\x99\x00\x000\xc5" + // 0x30C43099: 0x000030C5
+	"0\xc60\x99\x00\x000\xc7" + // 0x30C63099: 0x000030C7
+	"0\xc80\x99\x00\x000\xc9" + // 0x30C83099: 0x000030C9
+	"0\xcf0\x99\x00\x000\xd0" + // 0x30CF3099: 0x000030D0
+	"0\xcf0\x9a\x00\x000\xd1" + // 0x30CF309A: 0x000030D1
+	"0\xd20\x99\x00\x000\xd3" + // 0x30D23099: 0x000030D3
+	"0\xd20\x9a\x00\x000\xd4" + // 0x30D2309A: 0x000030D4
+	"0\xd50\x99\x00\x000\xd6" + // 0x30D53099: 0x000030D6
+	"0\xd50\x9a\x00\x000\xd7" + // 0x30D5309A: 0x000030D7
+	"0\xd80\x99\x00\x000\xd9" + // 0x30D83099: 0x000030D9
+	"0\xd80\x9a\x00\x000\xda" + // 0x30D8309A: 0x000030DA
+	"0\xdb0\x99\x00\x000\xdc" + // 0x30DB3099: 0x000030DC
+	"0\xdb0\x9a\x00\x000\xdd" + // 0x30DB309A: 0x000030DD
+	"0\xa60\x99\x00\x000\xf4" + // 0x30A63099: 0x000030F4
+	"0\xef0\x99\x00\x000\xf7" + // 0x30EF3099: 0x000030F7
+	"0\xf00\x99\x00\x000\xf8" + // 0x30F03099: 0x000030F8
+	"0\xf10\x99\x00\x000\xf9" + // 0x30F13099: 0x000030F9
+	"0\xf20\x99\x00\x000\xfa" + // 0x30F23099: 0x000030FA
+	"0\xfd0\x99\x00\x000\xfe" + // 0x30FD3099: 0x000030FE
+	"\x10\x99\x10\xba\x00\x01\x10\x9a" + // 0x109910BA: 0x0001109A
+	"\x10\x9b\x10\xba\x00\x01\x10\x9c" + // 0x109B10BA: 0x0001109C
+	"\x10\xa5\x10\xba\x00\x01\x10\xab" + // 0x10A510BA: 0x000110AB
+	"\x111\x11'\x00\x01\x11." + // 0x11311127: 0x0001112E
+	"\x112\x11'\x00\x01\x11/" + // 0x11321127: 0x0001112F
+	"\x13G\x13>\x00\x01\x13K" + // 0x1347133E: 0x0001134B
+	"\x13G\x13W\x00\x01\x13L" + // 0x13471357: 0x0001134C
+	"\x14\xb9\x14\xba\x00\x01\x14\xbb" + // 0x14B914BA: 0x000114BB
+	"\x14\xb9\x14\xb0\x00\x01\x14\xbc" + // 0x14B914B0: 0x000114BC
+	"\x14\xb9\x14\xbd\x00\x01\x14\xbe" + // 0x14B914BD: 0x000114BE
+	"\x15\xb8\x15\xaf\x00\x01\x15\xba" + // 0x15B815AF: 0x000115BA
+	"\x15\xb9\x15\xaf\x00\x01\x15\xbb" + // 0x15B915AF: 0x000115BB
+	""
+	// Total size of tables: 55KB (55977 bytes)
diff --git a/libgo/go/golang.org/x/tools/go/analysis/analysis.go b/libgo/go/golang.org/x/tools/go/analysis/analysis.go
index 19e1e42..ea605f4 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/analysis.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/analysis.go
@@ -128,11 +128,13 @@
 	// See comments for ExportObjectFact.
 	ExportPackageFact func(fact Fact)
 
-	// AllPackageFacts returns a new slice containing all package facts in unspecified order.
+	// AllPackageFacts returns a new slice containing all package facts of the analysis's FactTypes
+	// in unspecified order.
 	// WARNING: This is an experimental API and may change in the future.
 	AllPackageFacts func() []PackageFact
 
-	// AllObjectFacts returns a new slice containing all object facts in unspecified order.
+	// AllObjectFacts returns a new slice containing all object facts of the analysis's FactTypes
+	// in unspecified order.
 	// WARNING: This is an experimental API and may change in the future.
 	AllObjectFacts func() []ObjectFact
 
@@ -161,13 +163,19 @@
 	pass.Report(Diagnostic{Pos: pos, Message: msg})
 }
 
-// reportNodef is a helper function that reports a Diagnostic using the
-// range denoted by the AST node.
-//
-// WARNING: This is an experimental API and may change in the future.
-func (pass *Pass) reportNodef(node ast.Node, format string, args ...interface{}) {
+// The Range interface provides a range. It's equivalent to and satisfied by
+// ast.Node.
+type Range interface {
+	Pos() token.Pos // position of first character belonging to the node
+	End() token.Pos // position of first character immediately after the node
+}
+
+// ReportRangef is a helper function that reports a Diagnostic using the
+// range provided. ast.Node values can be passed in as the range because
+// they satisfy the Range interface.
+func (pass *Pass) ReportRangef(rng Range, format string, args ...interface{}) {
 	msg := fmt.Sprintf(format, args...)
-	pass.Report(Diagnostic{Pos: node.Pos(), End: node.End(), Message: msg})
+	pass.Report(Diagnostic{Pos: rng.Pos(), End: rng.End(), Message: msg})
 }
 
 func (pass *Pass) String() string {
@@ -211,18 +219,3 @@
 type Fact interface {
 	AFact() // dummy method to avoid type errors
 }
-
-// A Diagnostic is a message associated with a source location or range.
-//
-// An Analyzer may return a variety of diagnostics; the optional Category,
-// which should be a constant, may be used to classify them.
-// It is primarily intended to make it easy to look up documentation.
-//
-// If End is provided, the diagnostic is specified to apply to the range between
-// Pos and End.
-type Diagnostic struct {
-	Pos      token.Pos
-	End      token.Pos // optional
-	Category string    // optional
-	Message  string
-}
diff --git a/libgo/go/golang.org/x/tools/go/analysis/diagnostic.go b/libgo/go/golang.org/x/tools/go/analysis/diagnostic.go
new file mode 100644
index 0000000..57eaf6f
--- /dev/null
+++ b/libgo/go/golang.org/x/tools/go/analysis/diagnostic.go
@@ -0,0 +1,61 @@
+package analysis
+
+import "go/token"
+
+// A Diagnostic is a message associated with a source location or range.
+//
+// An Analyzer may return a variety of diagnostics; the optional Category,
+// which should be a constant, may be used to classify them.
+// It is primarily intended to make it easy to look up documentation.
+//
+// If End is provided, the diagnostic is specified to apply to the range between
+// Pos and End.
+type Diagnostic struct {
+	Pos      token.Pos
+	End      token.Pos // optional
+	Category string    // optional
+	Message  string
+
+	// SuggestedFixes contains suggested fixes for a diagnostic which can be used to perform
+	// edits to a file that address the diagnostic.
+	// TODO(matloob): Should multiple SuggestedFixes be allowed for a diagnostic?
+	// Diagnostics should not contain SuggestedFixes that overlap.
+	// Experimental: This API is experimental and may change in the future.
+	SuggestedFixes []SuggestedFix // optional
+
+	// Experimental: This API is experimental and may change in the future.
+	Related []RelatedInformation // optional
+}
+
+// RelatedInformation contains information related to a diagnostic.
+// For example, a diagnostic that flags duplicated declarations of a
+// variable may include one RelatedInformation per existing
+// declaration.
+type RelatedInformation struct {
+	Pos     token.Pos
+	End     token.Pos
+	Message string
+}
+
+// A SuggestedFix is a code change associated with a Diagnostic that a user can choose
+// to apply to their code. Usually the SuggestedFix is meant to fix the issue flagged
+// by the diagnostic.
+// TextEdits for a SuggestedFix should not overlap. TextEdits for a SuggestedFix
+// should not contain edits for other packages.
+// Experimental: This API is experimental and may change in the future.
+type SuggestedFix struct {
+	// A description for this suggested fix to be shown to a user deciding
+	// whether to accept it.
+	Message   string
+	TextEdits []TextEdit
+}
+
+// A TextEdit represents the replacement of the code between Pos and End with the new text.
+// Each TextEdit should apply to a single file. End should not be earlier in the file than Pos.
+// Experimental: This API is experimental and may change in the future.
+type TextEdit struct {
+	// For a pure insertion, End can either be set to Pos or token.NoPos.
+	Pos     token.Pos
+	End     token.Pos
+	NewText []byte
+}
diff --git a/libgo/go/golang.org/x/tools/go/analysis/doc.go b/libgo/go/golang.org/x/tools/go/analysis/doc.go
index 2d44b04..a2353fc 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/doc.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/doc.go
@@ -67,7 +67,7 @@
 	}
 
 A driver may use the name, flags, and documentation to provide on-line
-help that describes the analyses its performs.
+help that describes the analyses it performs.
 The doc comment contains a brief one-line summary,
 optionally followed by paragraphs of explanation.
 The vet command, shown below, is an example of a driver that runs
@@ -169,7 +169,7 @@
 
 The OtherFiles field provides the names, but not the contents, of non-Go
 files such as assembly that are part of this package. See the "asmdecl"
-or "buildtags" analyzers for examples of loading non-Go files and report
+or "buildtags" analyzers for examples of loading non-Go files and reporting
 diagnostics against them.
 
 The ResultOf field provides the results computed by the analyzers
@@ -231,7 +231,7 @@
 vet's printf checker infers whether a function has the "printf wrapper"
 type, and it applies stricter checks to calls of such functions. In
 addition, it records which functions are printf wrappers for use by
-later analysis units to identify other printf wrappers by induction.
+later analysis passes to identify other printf wrappers by induction.
 A result such as “f is a printf wrapper” that is not interesting by
 itself but serves as a stepping stone to an interesting result (such as
 a diagnostic) is called a "fact".
@@ -252,9 +252,9 @@
 
 	type isWrapper struct{} // => *types.Func f “is a printf wrapper”
 
-A driver program ensures that facts for a pass’s dependencies are
-generated before analyzing the pass and are responsible for propagating
-facts between from one pass to another, possibly across address spaces.
+The driver program ensures that facts for a pass’s dependencies are
+generated before analyzing the package and is responsible for propagating
+facts from one package to another, possibly across address spaces.
 Consequently, Facts must be serializable. The API requires that drivers
 use the gob encoding, an efficient, robust, self-describing binary
 protocol. A fact type may implement the GobEncoder/GobDecoder interfaces
@@ -288,10 +288,10 @@
 Therefore, for best results, analyzer authors should not rely on
 analysis facts being available for standard packages.
 For example, although the printf checker is capable of deducing during
-analysis of the log package that log.Printf is a printf-wrapper,
+analysis of the log package that log.Printf is a printf wrapper,
 this fact is built in to the analyzer so that it correctly checks
 calls to log.Printf even when run in a driver that does not apply
-it to standard packages. We plan to remove this limitation in future.
+it to standard packages. We would like to remove this limitation in future.
 
 
 Testing an Analyzer
diff --git a/libgo/go/golang.org/x/tools/go/analysis/internal/analysisflags/flags.go b/libgo/go/golang.org/x/tools/go/analysis/internal/analysisflags/flags.go
index a3c2f09..0778f42 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/internal/analysisflags/flags.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/internal/analysisflags/flags.go
@@ -168,10 +168,10 @@
 	var flags []jsonFlag = nil
 	flag.VisitAll(func(f *flag.Flag) {
 		// Don't report {single,multi}checker debugging
-		// flags as these have no effect on unitchecker
+		// flags or fix as these have no effect on unitchecker
 		// (as invoked by 'go vet').
 		switch f.Name {
-		case "debug", "cpuprofile", "memprofile", "trace":
+		case "debug", "cpuprofile", "memprofile", "trace", "fix":
 			return
 		}
 
@@ -209,7 +209,7 @@
 		log.Fatalf("unsupported flag value: -V=%s", s)
 	}
 
-	// This replicates the miminal subset of
+	// This replicates the minimal subset of
 	// cmd/internal/objabi.AddVersionFlag, which is private to the
 	// go tool yet forms part of our command-line interface.
 	// TODO(adonovan): clarify the contract.
diff --git a/libgo/go/golang.org/x/tools/go/analysis/internal/facts/facts.go b/libgo/go/golang.org/x/tools/go/analysis/internal/facts/facts.go
index 468f148..1fb69c6 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/internal/facts/facts.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/internal/facts/facts.go
@@ -29,7 +29,7 @@
 // The notion of "exportedness" that matters here is that of the
 // compiler. According to the language spec, a method pkg.T.f is
 // unexported simply because its name starts with lowercase. But the
-// compiler must nonethless export f so that downstream compilations can
+// compiler must nonetheless export f so that downstream compilations can
 // accurately ascertain whether pkg.T implements an interface pkg.I
 // defined as interface{f()}. Exported thus means "described in export
 // data".
@@ -99,6 +99,18 @@
 	s.mu.Unlock()
 }
 
+func (s *Set) AllObjectFacts(filter map[reflect.Type]bool) []analysis.ObjectFact {
+	var facts []analysis.ObjectFact
+	s.mu.Lock()
+	for k, v := range s.m {
+		if k.obj != nil && filter[k.t] {
+			facts = append(facts, analysis.ObjectFact{Object: k.obj, Fact: v})
+		}
+	}
+	s.mu.Unlock()
+	return facts
+}
+
 // ImportPackageFact implements analysis.Pass.ImportPackageFact.
 func (s *Set) ImportPackageFact(pkg *types.Package, ptr analysis.Fact) bool {
 	if pkg == nil {
@@ -122,6 +134,18 @@
 	s.mu.Unlock()
 }
 
+func (s *Set) AllPackageFacts(filter map[reflect.Type]bool) []analysis.PackageFact {
+	var facts []analysis.PackageFact
+	s.mu.Lock()
+	for k, v := range s.m {
+		if k.obj == nil && filter[k.t] {
+			facts = append(facts, analysis.PackageFact{Package: k.pkg, Fact: v})
+		}
+	}
+	s.mu.Unlock()
+	return facts
+}
+
 // gobFact is the Gob declaration of a serialized fact.
 type gobFact struct {
 	PkgPath string          // path of package
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/asmdecl/asmdecl.go b/libgo/go/golang.org/x/tools/go/analysis/passes/asmdecl/asmdecl.go
index d41c4e9..5c93a4f 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/asmdecl/asmdecl.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/asmdecl/asmdecl.go
@@ -22,9 +22,11 @@
 	"golang.org/x/tools/go/analysis/passes/internal/analysisutil"
 )
 
+const Doc = "report mismatches between assembly files and Go declarations"
+
 var Analyzer = &analysis.Analyzer{
 	Name: "asmdecl",
-	Doc:  "report mismatches between assembly files and Go declarations",
+	Doc:  Doc,
 	Run:  run,
 }
 
@@ -79,7 +81,6 @@
 	asmArchArm      = asmArch{name: "arm", bigEndian: false, stack: "R13", lr: true}
 	asmArchArm64    = asmArch{name: "arm64", bigEndian: false, stack: "RSP", lr: true}
 	asmArchAmd64    = asmArch{name: "amd64", bigEndian: false, stack: "SP", lr: false}
-	asmArchAmd64p32 = asmArch{name: "amd64p32", bigEndian: false, stack: "SP", lr: false}
 	asmArchMips     = asmArch{name: "mips", bigEndian: true, stack: "R29", lr: true}
 	asmArchMipsLE   = asmArch{name: "mipsle", bigEndian: false, stack: "R29", lr: true}
 	asmArchMips64   = asmArch{name: "mips64", bigEndian: true, stack: "R29", lr: true}
@@ -94,7 +95,6 @@
 		&asmArchArm,
 		&asmArchArm64,
 		&asmArchAmd64,
-		&asmArchAmd64p32,
 		&asmArchMips,
 		&asmArchMipsLE,
 		&asmArchMips64,
@@ -635,9 +635,6 @@
 	case "amd64.LEAQ":
 		dst = 8
 		addr = true
-	case "amd64p32.LEAL":
-		dst = 4
-		addr = true
 	default:
 		switch fn.arch.name {
 		case "386", "amd64":
@@ -666,6 +663,10 @@
 				src = 4
 				break
 			}
+			if op == "MOVO" || op == "MOVOU" {
+				src = 16
+				break
+			}
 			if strings.HasPrefix(op, "SET") {
 				// SETEQ, etc
 				src = 1
@@ -741,6 +742,11 @@
 		vk = v.inner[0].kind
 		vs = v.inner[0].size
 		vt = v.inner[0].typ
+	case asmComplex:
+		// Allow a single instruction to load both parts of a complex.
+		if int(kind) == vs {
+			kind = asmComplex
+		}
 	}
 	if addr {
 		vk = asmKind(archDef.ptrSize)
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/assign/assign.go b/libgo/go/golang.org/x/tools/go/analysis/passes/assign/assign.go
index 4dff290..3586638 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/assign/assign.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/assign/assign.go
@@ -9,6 +9,7 @@
 // methods that are on T instead of *T.
 
 import (
+	"fmt"
 	"go/ast"
 	"go/token"
 	"reflect"
@@ -59,7 +60,14 @@
 			le := analysisutil.Format(pass.Fset, lhs)
 			re := analysisutil.Format(pass.Fset, rhs)
 			if le == re {
-				pass.Reportf(stmt.Pos(), "self-assignment of %s to %s", re, le)
+				pass.Report(analysis.Diagnostic{
+					Pos: stmt.Pos(), Message: fmt.Sprintf("self-assignment of %s to %s", re, le),
+					SuggestedFixes: []analysis.SuggestedFix{
+						{Message: "Remove", TextEdits: []analysis.TextEdit{
+							{Pos: stmt.Pos(), End: stmt.End(), NewText: []byte{}},
+						}},
+					},
+				})
 			}
 		}
 	})
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/atomic/atomic.go b/libgo/go/golang.org/x/tools/go/analysis/passes/atomic/atomic.go
index 45243d6..9261db7 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/atomic/atomic.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/atomic/atomic.go
@@ -91,6 +91,6 @@
 	}
 
 	if broken {
-		pass.Reportf(left.Pos(), "direct assignment to atomic value")
+		pass.ReportRangef(left, "direct assignment to atomic value")
 	}
 }
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/bools/bools.go b/libgo/go/golang.org/x/tools/go/analysis/passes/bools/bools.go
index c82d367..5ae47d8 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/bools/bools.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/bools/bools.go
@@ -17,9 +17,11 @@
 	"golang.org/x/tools/go/ast/inspector"
 )
 
+const Doc = "check for common mistakes involving boolean operators"
+
 var Analyzer = &analysis.Analyzer{
 	Name:     "bools",
-	Doc:      "check for common mistakes involving boolean operators",
+	Doc:      Doc,
 	Requires: []*analysis.Analyzer{inspect.Analyzer},
 	Run:      run,
 }
@@ -100,7 +102,7 @@
 	for _, e := range exprs {
 		efmt := analysisutil.Format(pass.Fset, e)
 		if seen[efmt] {
-			pass.Reportf(e.Pos(), "redundant %s: %s %s %s", op.name, efmt, op.tok, efmt)
+			pass.ReportRangef(e, "redundant %s: %s %s %s", op.name, efmt, op.tok, efmt)
 		} else {
 			seen[efmt] = true
 		}
@@ -147,7 +149,7 @@
 		if prev, found := seen[xfmt]; found {
 			// checkRedundant handles the case in which efmt == prev.
 			if efmt != prev {
-				pass.Reportf(e.Pos(), "suspect %s: %s %s %s", op.name, efmt, op.tok, prev)
+				pass.ReportRangef(e, "suspect %s: %s %s %s", op.name, efmt, op.tok, prev)
 			}
 		} else {
 			seen[xfmt] = efmt
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/buildtag/buildtag.go b/libgo/go/golang.org/x/tools/go/analysis/passes/buildtag/buildtag.go
index 5a441e6..78176f1 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/buildtag/buildtag.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/buildtag/buildtag.go
@@ -16,9 +16,11 @@
 	"golang.org/x/tools/go/analysis/passes/internal/analysisutil"
 )
 
+const Doc = "check that +build tags are well-formed and correctly located"
+
 var Analyzer = &analysis.Analyzer{
 	Name: "buildtag",
-	Doc:  "check that +build tags are well-formed and correctly located",
+	Doc:  Doc,
 	Run:  runBuildTag,
 }
 
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/cgocall/cgocall.go b/libgo/go/golang.org/x/tools/go/analysis/passes/cgocall/cgocall.go
index 42a690d..7f7ca08 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/cgocall/cgocall.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/cgocall/cgocall.go
@@ -24,7 +24,7 @@
 
 const debug = false
 
-const doc = `detect some violations of the cgo pointer passing rules
+const Doc = `detect some violations of the cgo pointer passing rules
 
 Check for invalid cgo pointer passing.
 This looks for code that uses cgo to call C code passing values
@@ -35,7 +35,7 @@
 
 var Analyzer = &analysis.Analyzer{
 	Name:             "cgocall",
-	Doc:              doc,
+	Doc:              Doc,
 	RunDespiteErrors: true,
 	Run:              run,
 }
@@ -108,7 +108,7 @@
 // cgo files of a package (those that import "C"). Such files are not
 // Go, so there may be gaps in type information around C.f references.
 //
-// This checker was initially written in vet to inpect raw cgo source
+// This checker was initially written in vet to inspect raw cgo source
 // files using partial type information. However, Analyzers in the new
 // analysis API are presented with the type-checked, "cooked" Go ASTs
 // resulting from cgo-processing files, so we must choose between
@@ -134,7 +134,7 @@
 //	func (T) f(int) string { ... }
 //
 // we synthesize a new ast.File, shown below, that dot-imports the
-// orginal "cooked" package using a special name ("·this·"), so that all
+// original "cooked" package using a special name ("·this·"), so that all
 // references to package members resolve correctly. (References to
 // unexported names cause an "unexported" error, which we ignore.)
 //
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/composite/composite.go b/libgo/go/golang.org/x/tools/go/analysis/passes/composite/composite.go
index 2abe7c6..4c3ac66 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/composite/composite.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/composite/composite.go
@@ -97,7 +97,7 @@
 			return
 		}
 
-		pass.Reportf(cl.Pos(), "%s composite literal uses unkeyed fields", typeName)
+		pass.ReportRangef(cl, "%s composite literal uses unkeyed fields", typeName)
 	})
 	return nil, nil
 }
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/composite/whitelist.go b/libgo/go/golang.org/x/tools/go/analysis/passes/composite/whitelist.go
index ab609f2..1e5f5fd 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/composite/whitelist.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/composite/whitelist.go
@@ -24,6 +24,7 @@
 	"image.Uniform":       true,
 
 	"unicode.Range16": true,
+	"unicode.Range32": true,
 
 	// These three structs are used in generated test main files,
 	// but the generator can be trusted.
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/copylock/copylock.go b/libgo/go/golang.org/x/tools/go/analysis/passes/copylock/copylock.go
index 067aed5..c4ebf78 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/copylock/copylock.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/copylock/copylock.go
@@ -74,7 +74,7 @@
 func checkCopyLocksAssign(pass *analysis.Pass, as *ast.AssignStmt) {
 	for i, x := range as.Rhs {
 		if path := lockPathRhs(pass, x); path != nil {
-			pass.Reportf(x.Pos(), "assignment copies lock value to %v: %v", analysisutil.Format(pass.Fset, as.Lhs[i]), path)
+			pass.ReportRangef(x, "assignment copies lock value to %v: %v", analysisutil.Format(pass.Fset, as.Lhs[i]), path)
 		}
 	}
 }
@@ -89,7 +89,7 @@
 		valueSpec := spec.(*ast.ValueSpec)
 		for i, x := range valueSpec.Values {
 			if path := lockPathRhs(pass, x); path != nil {
-				pass.Reportf(x.Pos(), "variable declaration copies lock value to %v: %v", valueSpec.Names[i].Name, path)
+				pass.ReportRangef(x, "variable declaration copies lock value to %v: %v", valueSpec.Names[i].Name, path)
 			}
 		}
 	}
@@ -102,7 +102,7 @@
 			x = node.Value
 		}
 		if path := lockPathRhs(pass, x); path != nil {
-			pass.Reportf(x.Pos(), "literal copies lock value from %v: %v", analysisutil.Format(pass.Fset, x), path)
+			pass.ReportRangef(x, "literal copies lock value from %v: %v", analysisutil.Format(pass.Fset, x), path)
 		}
 	}
 }
@@ -111,7 +111,7 @@
 func checkCopyLocksReturnStmt(pass *analysis.Pass, rs *ast.ReturnStmt) {
 	for _, x := range rs.Results {
 		if path := lockPathRhs(pass, x); path != nil {
-			pass.Reportf(x.Pos(), "return copies lock value: %v", path)
+			pass.ReportRangef(x, "return copies lock value: %v", path)
 		}
 	}
 }
@@ -133,7 +133,7 @@
 	}
 	for _, x := range ce.Args {
 		if path := lockPathRhs(pass, x); path != nil {
-			pass.Reportf(x.Pos(), "call of %s copies lock value: %v", analysisutil.Format(pass.Fset, ce.Fun), path)
+			pass.ReportRangef(x, "call of %s copies lock value: %v", analysisutil.Format(pass.Fset, ce.Fun), path)
 		}
 	}
 }
@@ -146,7 +146,7 @@
 	if recv != nil && len(recv.List) > 0 {
 		expr := recv.List[0].Type
 		if path := lockPath(pass.Pkg, pass.TypesInfo.Types[expr].Type); path != nil {
-			pass.Reportf(expr.Pos(), "%s passes lock by value: %v", name, path)
+			pass.ReportRangef(expr, "%s passes lock by value: %v", name, path)
 		}
 	}
 
@@ -154,7 +154,7 @@
 		for _, field := range typ.Params.List {
 			expr := field.Type
 			if path := lockPath(pass.Pkg, pass.TypesInfo.Types[expr].Type); path != nil {
-				pass.Reportf(expr.Pos(), "%s passes lock by value: %v", name, path)
+				pass.ReportRangef(expr, "%s passes lock by value: %v", name, path)
 			}
 		}
 	}
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/ctrlflow/ctrlflow.go b/libgo/go/golang.org/x/tools/go/analysis/passes/ctrlflow/ctrlflow.go
index 75655c5..51600ff 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/ctrlflow/ctrlflow.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/ctrlflow/ctrlflow.go
@@ -102,10 +102,11 @@
 	inspect.Preorder(nodeFilter, func(n ast.Node) {
 		switch n := n.(type) {
 		case *ast.FuncDecl:
-			fn := pass.TypesInfo.Defs[n.Name].(*types.Func)
-			funcDecls[fn] = &declInfo{decl: n}
-			decls = append(decls, fn)
-
+			// Type information may be incomplete.
+			if fn, ok := pass.TypesInfo.Defs[n.Name].(*types.Func); ok {
+				funcDecls[fn] = &declInfo{decl: n}
+				decls = append(decls, fn)
+			}
 		case *ast.FuncLit:
 			funcLits[n] = new(litInfo)
 			lits = append(lits, n)
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/errorsas/errorsas.go b/libgo/go/golang.org/x/tools/go/analysis/passes/errorsas/errorsas.go
index c411466..b80271a 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/errorsas/errorsas.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/errorsas/errorsas.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// The errorsas package defines an Analyzer that checks that the second arugment to
+// The errorsas package defines an Analyzer that checks that the second argument to
 // errors.As is a pointer to a type implementing error.
 package errorsas
 
@@ -16,14 +16,14 @@
 	"golang.org/x/tools/go/types/typeutil"
 )
 
-const doc = `report passing non-pointer or non-error values to errors.As
+const Doc = `report passing non-pointer or non-error values to errors.As
 
 The errorsas analysis reports calls to errors.As where the type
 of the second argument is not a pointer to a type implementing error.`
 
 var Analyzer = &analysis.Analyzer{
 	Name:     "errorsas",
-	Doc:      doc,
+	Doc:      Doc,
 	Requires: []*analysis.Analyzer{inspect.Analyzer},
 	Run:      run,
 }
@@ -51,7 +51,7 @@
 			return // not enough arguments, e.g. called with return values of another function
 		}
 		if fn.FullName() == "errors.As" && !pointerToInterfaceOrError(pass, call.Args[1]) {
-			pass.Reportf(call.Pos(), "second argument to errors.As must be a pointer to an interface or a type implementing error")
+			pass.ReportRangef(call, "second argument to errors.As must be a pointer to an interface or a type implementing error")
 		}
 	})
 	return nil, nil
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/httpresponse/httpresponse.go b/libgo/go/golang.org/x/tools/go/analysis/passes/httpresponse/httpresponse.go
index 0cf21b8..ec335d3 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/httpresponse/httpresponse.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/httpresponse/httpresponse.go
@@ -85,7 +85,7 @@
 		}
 
 		if resp.Obj == root.Obj {
-			pass.Reportf(root.Pos(), "using %s before checking for errors", resp.Name)
+			pass.ReportRangef(root, "using %s before checking for errors", resp.Name)
 		}
 		return true
 	})
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/inspect/inspect.go b/libgo/go/golang.org/x/tools/go/analysis/passes/inspect/inspect.go
index 8213f63..2856df1 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/inspect/inspect.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/inspect/inspect.go
@@ -16,7 +16,7 @@
 //
 //	var Analyzer = &analysis.Analyzer{
 //		...
-//		Requires:       reflect.TypeOf(new(inspect.Analyzer)),
+//		Requires:       []*analysis.Analyzer{inspect.Analyzer},
 //	}
 //
 // 	func run(pass *analysis.Pass) (interface{}, error) {
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/loopclosure/loopclosure.go b/libgo/go/golang.org/x/tools/go/analysis/passes/loopclosure/loopclosure.go
index da07140..a14e7eb 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/loopclosure/loopclosure.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/loopclosure/loopclosure.go
@@ -119,7 +119,7 @@
 			}
 			for _, v := range vars {
 				if v.Obj == id.Obj {
-					pass.Reportf(id.Pos(), "loop variable %s captured by func literal",
+					pass.ReportRangef(id, "loop variable %s captured by func literal",
 						id.Name)
 				}
 			}
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/lostcancel/lostcancel.go b/libgo/go/golang.org/x/tools/go/analysis/passes/lostcancel/lostcancel.go
index e88cf57..de6f840 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/lostcancel/lostcancel.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/lostcancel/lostcancel.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // Package lostcancel defines an Analyzer that checks for failure to
-// call a context cancelation function.
+// call a context cancellation function.
 package lostcancel
 
 import (
@@ -20,7 +20,7 @@
 
 const Doc = `check cancel func returned by context.WithCancel is called
 
-The cancelation function returned by context.WithCancel, WithTimeout,
+The cancellation function returned by context.WithCancel, WithTimeout,
 and WithDeadline must be called or the new context will remain live
 until its parent context is cancelled.
 (The background context is never cancelled.)`
@@ -121,7 +121,7 @@
 		}
 		if id != nil {
 			if id.Name == "_" {
-				pass.Reportf(id.Pos(),
+				pass.ReportRangef(id,
 					"the cancel function returned by context.%s should be called, not discarded, to avoid a context leak",
 					n.(*ast.SelectorExpr).Sel.Name)
 			} else if v, ok := pass.TypesInfo.Uses[id].(*types.Var); ok {
@@ -174,8 +174,8 @@
 	for v, stmt := range cancelvars {
 		if ret := lostCancelPath(pass, g, v, stmt, sig); ret != nil {
 			lineno := pass.Fset.Position(stmt.Pos()).Line
-			pass.Reportf(stmt.Pos(), "the %s function is not used on all paths (possible context leak)", v.Name())
-			pass.Reportf(ret.Pos(), "this return statement may be reached without using the %s var defined on line %d", v.Name(), lineno)
+			pass.ReportRangef(stmt, "the %s function is not used on all paths (possible context leak)", v.Name())
+			pass.ReportRangef(ret, "this return statement may be reached without using the %s var defined on line %d", v.Name(), lineno)
 		}
 	}
 }
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/nilfunc/nilfunc.go b/libgo/go/golang.org/x/tools/go/analysis/passes/nilfunc/nilfunc.go
index 9c2d4df..cd42c98 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/nilfunc/nilfunc.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/nilfunc/nilfunc.go
@@ -68,7 +68,7 @@
 			return
 		}
 
-		pass.Reportf(e.Pos(), "comparison of function %v %v nil is always %v", obj.Name(), e.Op, e.Op == token.NEQ)
+		pass.ReportRangef(e, "comparison of function %v %v nil is always %v", obj.Name(), e.Op, e.Op == token.NEQ)
 	})
 	return nil, nil
 }
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/printf/printf.go b/libgo/go/golang.org/x/tools/go/analysis/passes/printf/printf.go
index f59e95d..a81dba9 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/printf/printf.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/printf/printf.go
@@ -13,6 +13,7 @@
 	"go/constant"
 	"go/token"
 	"go/types"
+	"reflect"
 	"regexp"
 	"sort"
 	"strconv"
@@ -31,14 +32,15 @@
 }
 
 var Analyzer = &analysis.Analyzer{
-	Name:      "printf",
-	Doc:       doc,
-	Requires:  []*analysis.Analyzer{inspect.Analyzer},
-	Run:       run,
-	FactTypes: []analysis.Fact{new(isWrapper)},
+	Name:       "printf",
+	Doc:        Doc,
+	Requires:   []*analysis.Analyzer{inspect.Analyzer},
+	Run:        run,
+	ResultType: reflect.TypeOf((*Result)(nil)),
+	FactTypes:  []analysis.Fact{new(isWrapper)},
 }
 
-const doc = `check consistency of Printf format strings and arguments
+const Doc = `check consistency of Printf format strings and arguments
 
 The check applies to known functions (for example, those in package fmt)
 as well as any detected wrappers of known functions.
@@ -66,23 +68,77 @@
 of arguments with no format string.
 `
 
+// Kind is a kind of fmt function behavior.
+type Kind int
+
+const (
+	KindNone   Kind = iota // not a fmt wrapper function
+	KindPrint              // function behaves like fmt.Print
+	KindPrintf             // function behaves like fmt.Printf
+	KindErrorf             // function behaves like fmt.Errorf
+)
+
+func (kind Kind) String() string {
+	switch kind {
+	case KindPrint:
+		return "print"
+	case KindPrintf:
+		return "printf"
+	case KindErrorf:
+		return "errorf"
+	}
+	return ""
+}
+
+// Result is the printf analyzer's result type. Clients may query the result
+// to learn whether a function behaves like fmt.Print or fmt.Printf.
+type Result struct {
+	funcs map[*types.Func]Kind
+}
+
+// Kind reports whether fn behaves like fmt.Print or fmt.Printf.
+func (r *Result) Kind(fn *types.Func) Kind {
+	_, ok := isPrint[fn.FullName()]
+	if !ok {
+		// Next look up just "printf", for use with -printf.funcs.
+		_, ok = isPrint[strings.ToLower(fn.Name())]
+	}
+	if ok {
+		if strings.HasSuffix(fn.Name(), "f") {
+			return KindPrintf
+		} else {
+			return KindPrint
+		}
+	}
+
+	return r.funcs[fn]
+}
+
 // isWrapper is a fact indicating that a function is a print or printf wrapper.
-type isWrapper struct{ Printf bool }
+type isWrapper struct{ Kind Kind }
 
 func (f *isWrapper) AFact() {}
 
 func (f *isWrapper) String() string {
-	if f.Printf {
+	switch f.Kind {
+	case KindPrintf:
 		return "printfWrapper"
-	} else {
+	case KindPrint:
 		return "printWrapper"
+	case KindErrorf:
+		return "errorfWrapper"
+	default:
+		return "unknownWrapper"
 	}
 }
 
 func run(pass *analysis.Pass) (interface{}, error) {
-	findPrintfLike(pass)
+	res := &Result{
+		funcs: make(map[*types.Func]Kind),
+	}
+	findPrintfLike(pass, res)
 	checkCall(pass)
-	return nil, nil
+	return res, nil
 }
 
 type printfWrapper struct {
@@ -112,7 +168,11 @@
 	if !ok || fdecl.Body == nil {
 		return nil
 	}
-	fn := info.Defs[fdecl.Name].(*types.Func)
+	fn, ok := info.Defs[fdecl.Name].(*types.Func)
+	// Type information may be incomplete.
+	if !ok {
+		return nil
+	}
 
 	sig := fn.Type().(*types.Signature)
 	if !sig.Variadic() {
@@ -145,7 +205,7 @@
 }
 
 // findPrintfLike scans the entire package to find printf-like functions.
-func findPrintfLike(pass *analysis.Pass) (interface{}, error) {
+func findPrintfLike(pass *analysis.Pass, res *Result) (interface{}, error) {
 	// Gather potential wrappers and call graph between them.
 	byObj := make(map[*types.Func]*printfWrapper)
 	var wrappers []*printfWrapper
@@ -200,7 +260,7 @@
 
 			fn, kind := printfNameAndKind(pass, call)
 			if kind != 0 {
-				checkPrintfFwd(pass, w, call, kind)
+				checkPrintfFwd(pass, w, call, kind, res)
 				return true
 			}
 
@@ -223,16 +283,11 @@
 	return ok && info.ObjectOf(id) == param
 }
 
-const (
-	kindPrintf = 1
-	kindPrint  = 2
-)
-
 // checkPrintfFwd checks that a printf-forwarding wrapper is forwarding correctly.
 // It diagnoses writing fmt.Printf(format, args) instead of fmt.Printf(format, args...).
-func checkPrintfFwd(pass *analysis.Pass, w *printfWrapper, call *ast.CallExpr, kind int) {
-	matched := kind == kindPrint ||
-		kind == kindPrintf && len(call.Args) >= 2 && match(pass.TypesInfo, call.Args[len(call.Args)-2], w.format)
+func checkPrintfFwd(pass *analysis.Pass, w *printfWrapper, call *ast.CallExpr, kind Kind, res *Result) {
+	matched := kind == KindPrint ||
+		kind != KindNone && len(call.Args) >= 2 && match(pass.TypesInfo, call.Args[len(call.Args)-2], w.format)
 	if !matched {
 		return
 	}
@@ -253,19 +308,20 @@
 			return
 		}
 		desc := "printf"
-		if kind == kindPrint {
+		if kind == KindPrint {
 			desc = "print"
 		}
-		pass.Reportf(call.Pos(), "missing ... in args forwarded to %s-like function", desc)
+		pass.ReportRangef(call, "missing ... in args forwarded to %s-like function", desc)
 		return
 	}
 	fn := w.obj
 	var fact isWrapper
 	if !pass.ImportObjectFact(fn, &fact) {
-		fact.Printf = kind == kindPrintf
+		fact.Kind = kind
 		pass.ExportObjectFact(fn, &fact)
+		res.funcs[fn] = kind
 		for _, caller := range w.callers {
-			checkPrintfFwd(pass, caller.w, caller.call, kind)
+			checkPrintfFwd(pass, caller.w, caller.call, kind, res)
 		}
 	}
 }
@@ -414,42 +470,42 @@
 		call := n.(*ast.CallExpr)
 		fn, kind := printfNameAndKind(pass, call)
 		switch kind {
-		case kindPrintf:
-			checkPrintf(pass, call, fn)
-		case kindPrint:
+		case KindPrintf, KindErrorf:
+			checkPrintf(pass, kind, call, fn)
+		case KindPrint:
 			checkPrint(pass, call, fn)
 		}
 	})
 }
 
-func printfNameAndKind(pass *analysis.Pass, call *ast.CallExpr) (fn *types.Func, kind int) {
+func printfNameAndKind(pass *analysis.Pass, call *ast.CallExpr) (fn *types.Func, kind Kind) {
 	fn, _ = typeutil.Callee(pass.TypesInfo, call).(*types.Func)
 	if fn == nil {
 		return nil, 0
 	}
 
-	var fact isWrapper
-	if pass.ImportObjectFact(fn, &fact) {
-		if fact.Printf {
-			return fn, kindPrintf
-		} else {
-			return fn, kindPrint
-		}
-	}
-
 	_, ok := isPrint[fn.FullName()]
 	if !ok {
 		// Next look up just "printf", for use with -printf.funcs.
 		_, ok = isPrint[strings.ToLower(fn.Name())]
 	}
 	if ok {
-		if strings.HasSuffix(fn.Name(), "f") {
-			kind = kindPrintf
+		if fn.Name() == "Errorf" {
+			kind = KindErrorf
+		} else if strings.HasSuffix(fn.Name(), "f") {
+			kind = KindPrintf
 		} else {
-			kind = kindPrint
+			kind = KindPrint
 		}
+		return fn, kind
 	}
-	return fn, kind
+
+	var fact isWrapper
+	if pass.ImportObjectFact(fn, &fact) {
+		return fn, fact.Kind
+	}
+
+	return fn, KindNone
 }
 
 // isFormatter reports whether t satisfies fmt.Formatter.
@@ -491,7 +547,7 @@
 }
 
 // checkPrintf checks a call to a formatted print routine such as Printf.
-func checkPrintf(pass *analysis.Pass, call *ast.CallExpr, fn *types.Func) {
+func checkPrintf(pass *analysis.Pass, kind Kind, call *ast.CallExpr, fn *types.Func) {
 	format, idx := formatString(pass, call)
 	if idx < 0 {
 		if false {
@@ -511,6 +567,7 @@
 	argNum := firstArg
 	maxArgNum := firstArg
 	anyIndex := false
+	anyW := false
 	for i, w := 0, 0; i < len(format); i += w {
 		w = 1
 		if format[i] != '%' {
@@ -527,6 +584,17 @@
 		if state.hasIndex {
 			anyIndex = true
 		}
+		if state.verb == 'w' {
+			if kind != KindErrorf {
+				pass.Reportf(call.Pos(), "%s call has error-wrapping directive %%w", state.name)
+				return
+			}
+			if anyW {
+				pass.Reportf(call.Pos(), "%s call has more than one error-wrapping directive %%w", state.name)
+				return
+			}
+			anyW = true
+		}
 		if len(state.argNums) > 0 {
 			// Continue with the next sequential argument.
 			argNum = state.argNums[len(state.argNums)-1] + 1
@@ -549,7 +617,7 @@
 	if maxArgNum != len(call.Args) {
 		expect := maxArgNum - firstArg
 		numArgs := len(call.Args) - firstArg
-		pass.Reportf(call.Pos(), "%s call needs %v but has %v", fn.Name(), count(expect, "arg"), count(numArgs, "arg"))
+		pass.ReportRangef(call, "%s call needs %v but has %v", fn.Name(), count(expect, "arg"), count(numArgs, "arg"))
 	}
 }
 
@@ -590,13 +658,13 @@
 		ok = false
 		s.nbytes = strings.Index(s.format, "]")
 		if s.nbytes < 0 {
-			s.pass.Reportf(s.call.Pos(), "%s format %s is missing closing ]", s.name, s.format)
+			s.pass.ReportRangef(s.call, "%s format %s is missing closing ]", s.name, s.format)
 			return false
 		}
 	}
 	arg32, err := strconv.ParseInt(s.format[start:s.nbytes], 10, 32)
 	if err != nil || !ok || arg32 <= 0 || arg32 > int64(len(s.call.Args)-s.firstArg) {
-		s.pass.Reportf(s.call.Pos(), "%s format has invalid argument index [%s]", s.name, s.format[start:s.nbytes])
+		s.pass.ReportRangef(s.call, "%s format has invalid argument index [%s]", s.name, s.format[start:s.nbytes])
 		return false
 	}
 	s.nbytes++ // skip ']'
@@ -673,7 +741,7 @@
 		return nil
 	}
 	if state.nbytes == len(state.format) {
-		pass.Reportf(call.Pos(), "%s format %s is missing verb at end of string", name, state.format)
+		pass.ReportRangef(call.Fun, "%s format %s is missing verb at end of string", name, state.format)
 		return nil
 	}
 	verb, w := utf8.DecodeRuneInString(state.format[state.nbytes:])
@@ -697,6 +765,7 @@
 	argFloat
 	argComplex
 	argPointer
+	argError
 	anyType printfArgType = ^0
 )
 
@@ -722,7 +791,7 @@
 	// '#' is alternate format for several verbs.
 	// ' ' is spacer for numbers
 	{'%', noFlag, 0},
-	{'b', numFlag, argInt | argFloat | argComplex | argPointer},
+	{'b', sharpNumFlag, argInt | argFloat | argComplex | argPointer},
 	{'c', "-", argRune | argInt},
 	{'d', numFlag, argInt | argPointer},
 	{'e', sharpNumFlag, argFloat | argComplex},
@@ -739,9 +808,9 @@
 	{'T', "-", anyType},
 	{'U', "-#", argRune | argInt},
 	{'v', allFlags, anyType},
-	{'w', noFlag, anyType},
-	{'x', sharpNumFlag, argRune | argInt | argString | argPointer},
-	{'X', sharpNumFlag, argRune | argInt | argString | argPointer},
+	{'w', allFlags, argError},
+	{'x', sharpNumFlag, argRune | argInt | argString | argPointer | argFloat | argComplex},
+	{'X', sharpNumFlag, argRune | argInt | argString | argPointer | argFloat | argComplex},
 }
 
 // okPrintfArg compares the formatState to the arguments actually present,
@@ -768,7 +837,7 @@
 
 	if !formatter {
 		if !found {
-			pass.Reportf(call.Pos(), "%s format %s has unknown verb %c", state.name, state.format, state.verb)
+			pass.ReportRangef(call, "%s format %s has unknown verb %c", state.name, state.format, state.verb)
 			return false
 		}
 		for _, flag := range state.flags {
@@ -778,7 +847,7 @@
 				continue
 			}
 			if !strings.ContainsRune(v.flags, rune(flag)) {
-				pass.Reportf(call.Pos(), "%s format %s has unrecognized flag %c", state.name, state.format, flag)
+				pass.ReportRangef(call, "%s format %s has unrecognized flag %c", state.name, state.format, flag)
 				return false
 			}
 		}
@@ -797,7 +866,7 @@
 		}
 		arg := call.Args[argNum]
 		if !matchArgType(pass, argInt, nil, arg) {
-			pass.Reportf(call.Pos(), "%s format %s uses non-int %s as argument of *", state.name, state.format, analysisutil.Format(pass.Fset, arg))
+			pass.ReportRangef(call, "%s format %s uses non-int %s as argument of *", state.name, state.format, analysisutil.Format(pass.Fset, arg))
 			return false
 		}
 	}
@@ -811,7 +880,7 @@
 	}
 	arg := call.Args[argNum]
 	if isFunctionValue(pass, arg) && state.verb != 'p' && state.verb != 'T' {
-		pass.Reportf(call.Pos(), "%s format %s arg %s is a func value, not called", state.name, state.format, analysisutil.Format(pass.Fset, arg))
+		pass.ReportRangef(call, "%s format %s arg %s is a func value, not called", state.name, state.format, analysisutil.Format(pass.Fset, arg))
 		return false
 	}
 	if !matchArgType(pass, v.typ, nil, arg) {
@@ -819,11 +888,11 @@
 		if typ := pass.TypesInfo.Types[arg].Type; typ != nil {
 			typeString = typ.String()
 		}
-		pass.Reportf(call.Pos(), "%s format %s has arg %s of wrong type %s", state.name, state.format, analysisutil.Format(pass.Fset, arg), typeString)
+		pass.ReportRangef(call, "%s format %s has arg %s of wrong type %s", state.name, state.format, analysisutil.Format(pass.Fset, arg), typeString)
 		return false
 	}
 	if v.typ&argString != 0 && v.verb != 'T' && !bytes.Contains(state.flags, []byte{'#'}) && recursiveStringer(pass, arg) {
-		pass.Reportf(call.Pos(), "%s format %s with arg %s causes recursive String method call", state.name, state.format, analysisutil.Format(pass.Fset, arg))
+		pass.ReportRangef(call, "%s format %s with arg %s causes recursive String method call", state.name, state.format, analysisutil.Format(pass.Fset, arg))
 		return false
 	}
 	return true
@@ -909,7 +978,7 @@
 	// There are bad indexes in the format or there are fewer arguments than the format needs.
 	// This is the argument number relative to the format: Printf("%s", "hi") will give 1 for the "hi".
 	arg := argNum - state.firstArg + 1 // People think of arguments as 1-indexed.
-	pass.Reportf(call.Pos(), "%s format %s reads arg #%d, but call has %v", state.name, state.format, arg, count(len(call.Args)-state.firstArg, "arg"))
+	pass.ReportRangef(call, "%s format %s reads arg #%d, but call has %v", state.name, state.format, arg, count(len(call.Args)-state.firstArg, "arg"))
 	return false
 }
 
@@ -960,7 +1029,7 @@
 		if sel, ok := call.Args[0].(*ast.SelectorExpr); ok {
 			if x, ok := sel.X.(*ast.Ident); ok {
 				if x.Name == "os" && strings.HasPrefix(sel.Sel.Name, "Std") {
-					pass.Reportf(call.Pos(), "%s does not take io.Writer but has first arg %s", fn.Name(), analysisutil.Format(pass.Fset, call.Args[0]))
+					pass.ReportRangef(call, "%s does not take io.Writer but has first arg %s", fn.Name(), analysisutil.Format(pass.Fset, call.Args[0]))
 				}
 			}
 		}
@@ -974,7 +1043,7 @@
 		if strings.Contains(s, "%") {
 			m := printFormatRE.FindStringSubmatch(s)
 			if m != nil {
-				pass.Reportf(call.Pos(), "%s call has possible formatting directive %s", fn.Name(), m[0])
+				pass.ReportRangef(call, "%s call has possible formatting directive %s", fn.Name(), m[0])
 			}
 		}
 	}
@@ -984,16 +1053,16 @@
 		if lit, ok := arg.(*ast.BasicLit); ok && lit.Kind == token.STRING {
 			str, _ := strconv.Unquote(lit.Value)
 			if strings.HasSuffix(str, "\n") {
-				pass.Reportf(call.Pos(), "%s arg list ends with redundant newline", fn.Name())
+				pass.ReportRangef(call, "%s arg list ends with redundant newline", fn.Name())
 			}
 		}
 	}
 	for _, arg := range args {
 		if isFunctionValue(pass, arg) {
-			pass.Reportf(call.Pos(), "%s arg %s is a func value, not called", fn.Name(), analysisutil.Format(pass.Fset, arg))
+			pass.ReportRangef(call, "%s arg %s is a func value, not called", fn.Name(), analysisutil.Format(pass.Fset, arg))
 		}
 		if recursiveStringer(pass, arg) {
-			pass.Reportf(call.Pos(), "%s arg %s causes recursive call to String method", fn.Name(), analysisutil.Format(pass.Fset, arg))
+			pass.ReportRangef(call, "%s arg %s causes recursive call to String method", fn.Name(), analysisutil.Format(pass.Fset, arg))
 		}
 	}
 }
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/printf/types.go b/libgo/go/golang.org/x/tools/go/analysis/passes/printf/types.go
index 12286fd..bd8a594 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/printf/types.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/printf/types.go
@@ -37,6 +37,12 @@
 			return true // probably a type check problem
 		}
 	}
+
+	// %w accepts only errors.
+	if t == argError {
+		return types.ConvertibleTo(typ, errorType)
+	}
+
 	// If the type implements fmt.Formatter, we have nothing to check.
 	if isFormatter(typ) {
 		return true
@@ -228,7 +234,7 @@
 			return false
 		}
 		if t&argString != 0 && !typf.Exported() && isConvertibleToString(pass, typf.Type()) {
-			// Issue #17798: unexported Stringer or error cannot be properly fomatted.
+			// Issue #17798: unexported Stringer or error cannot be properly formatted.
 			return false
 		}
 	}
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/shift/shift.go b/libgo/go/golang.org/x/tools/go/analysis/passes/shift/shift.go
index 39f5457..1f3df07 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/shift/shift.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/shift/shift.go
@@ -21,9 +21,11 @@
 	"golang.org/x/tools/go/ast/inspector"
 )
 
+const Doc = "check for shifts that equal or exceed the width of the integer"
+
 var Analyzer = &analysis.Analyzer{
 	Name:     "shift",
-	Doc:      "check for shifts that equal or exceed the width of the integer",
+	Doc:      Doc,
 	Requires: []*analysis.Analyzer{inspect.Analyzer},
 	Run:      run,
 }
@@ -94,6 +96,6 @@
 	size := 8 * pass.TypesSizes.Sizeof(t)
 	if amt >= size {
 		ident := analysisutil.Format(pass.Fset, x)
-		pass.Reportf(node.Pos(), "%s (%d bits) too small for shift of %d", ident, size, amt)
+		pass.ReportRangef(node, "%s (%d bits) too small for shift of %d", ident, size, amt)
 	}
 }
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/stdmethods/stdmethods.go b/libgo/go/golang.org/x/tools/go/analysis/passes/stdmethods/stdmethods.go
index bc1db7e..856c6ae 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/stdmethods/stdmethods.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/stdmethods/stdmethods.go
@@ -141,7 +141,7 @@
 		actual = strings.TrimPrefix(actual, "func")
 		actual = id.Name + actual
 
-		pass.Reportf(id.Pos(), "method %s should have signature %s", actual, expectFmt)
+		pass.ReportRangef(id, "method %s should have signature %s", actual, expectFmt)
 	}
 }
 
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/structtag/structtag.go b/libgo/go/golang.org/x/tools/go/analysis/passes/structtag/structtag.go
index acc6e6c..e091603 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/structtag/structtag.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/structtag/structtag.go
@@ -40,7 +40,11 @@
 		(*ast.StructType)(nil),
 	}
 	inspect.Preorder(nodeFilter, func(n ast.Node) {
-		styp := pass.TypesInfo.Types[n.(*ast.StructType)].Type.(*types.Struct)
+		styp, ok := pass.TypesInfo.Types[n.(*ast.StructType)].Type.(*types.Struct)
+		// Type information may be incomplete.
+		if !ok {
+			return
+		}
 		var seen namesSeen
 		for i := 0; i < styp.NumFields(); i++ {
 			field := styp.Field(i)
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/unmarshal/unmarshal.go b/libgo/go/golang.org/x/tools/go/analysis/passes/unmarshal/unmarshal.go
index d019ece..f9cc993 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/unmarshal/unmarshal.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/unmarshal/unmarshal.go
@@ -16,14 +16,14 @@
 	"golang.org/x/tools/go/types/typeutil"
 )
 
-const doc = `report passing non-pointer or non-interface values to unmarshal
+const Doc = `report passing non-pointer or non-interface values to unmarshal
 
 The unmarshal analysis reports calls to functions such as json.Unmarshal
 in which the argument type is not a pointer or an interface.`
 
 var Analyzer = &analysis.Analyzer{
 	Name:     "unmarshal",
-	Doc:      doc,
+	Doc:      Doc,
 	Requires: []*analysis.Analyzer{inspect.Analyzer},
 	Run:      run,
 }
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/unreachable/unreachable.go b/libgo/go/golang.org/x/tools/go/analysis/passes/unreachable/unreachable.go
index 19bc9c2..089c064 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/unreachable/unreachable.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/unreachable/unreachable.go
@@ -189,7 +189,7 @@
 		case *ast.EmptyStmt:
 			// do not warn about unreachable empty statements
 		default:
-			d.pass.Reportf(stmt.Pos(), "unreachable code")
+			d.pass.ReportRangef(stmt, "unreachable code")
 			d.reachable = true // silence error about next statement
 		}
 	}
diff --git a/libgo/go/golang.org/x/tools/go/analysis/passes/unsafeptr/unsafeptr.go b/libgo/go/golang.org/x/tools/go/analysis/passes/unsafeptr/unsafeptr.go
index 308bfc6..d5bafb8 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/passes/unsafeptr/unsafeptr.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/passes/unsafeptr/unsafeptr.go
@@ -45,7 +45,7 @@
 		if hasBasicType(pass.TypesInfo, x.Fun, types.UnsafePointer) &&
 			hasBasicType(pass.TypesInfo, x.Args[0], types.Uintptr) &&
 			!isSafeUintptr(pass.TypesInfo, x.Args[0]) {
-			pass.Reportf(x.Pos(), "possible misuse of unsafe.Pointer")
+			pass.ReportRangef(x, "possible misuse of unsafe.Pointer")
 		}
 	})
 	return nil, nil
diff --git a/libgo/go/golang.org/x/tools/go/analysis/unitchecker/unitchecker.go b/libgo/go/golang.org/x/tools/go/analysis/unitchecker/unitchecker.go
index b4fda19..ed5f43c 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/unitchecker/unitchecker.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/unitchecker/unitchecker.go
@@ -42,6 +42,7 @@
 	"log"
 	"os"
 	"path/filepath"
+	"reflect"
 	"sort"
 	"strings"
 	"sync"
@@ -322,6 +323,11 @@
 				return
 			}
 
+			factFilter := make(map[reflect.Type]bool)
+			for _, f := range a.FactTypes {
+				factFilter[reflect.TypeOf(f)] = true
+			}
+
 			pass := &analysis.Pass{
 				Analyzer:          a,
 				Fset:              fset,
@@ -334,8 +340,10 @@
 				Report:            func(d analysis.Diagnostic) { act.diagnostics = append(act.diagnostics, d) },
 				ImportObjectFact:  facts.ImportObjectFact,
 				ExportObjectFact:  facts.ExportObjectFact,
+				AllObjectFacts:    func() []analysis.ObjectFact { return facts.AllObjectFacts(factFilter) },
 				ImportPackageFact: facts.ImportPackageFact,
 				ExportPackageFact: facts.ExportPackageFact,
+				AllPackageFacts:   func() []analysis.PackageFact { return facts.AllPackageFacts(factFilter) },
 			}
 
 			t0 := time.Now()
diff --git a/libgo/go/golang.org/x/tools/go/analysis/validate.go b/libgo/go/golang.org/x/tools/go/analysis/validate.go
index 6e6cf49..be98143 100644
--- a/libgo/go/golang.org/x/tools/go/analysis/validate.go
+++ b/libgo/go/golang.org/x/tools/go/analysis/validate.go
@@ -9,13 +9,10 @@
 // Validate reports an error if any of the analyzers are misconfigured.
 // Checks include:
 // that the name is a valid identifier;
-// that analyzer names are unique;
-// that the Requires graph is acylic;
+// that the Requires graph is acyclic;
 // that analyzer fact types are unique;
 // that each fact type is a pointer.
 func Validate(analyzers []*Analyzer) error {
-	names := make(map[string]bool)
-
 	// Map each fact type to its sole generating analyzer.
 	factTypes := make(map[reflect.Type]*Analyzer)
 
@@ -39,10 +36,6 @@
 			if !validIdent(a.Name) {
 				return fmt.Errorf("invalid analyzer name %q", a)
 			}
-			if names[a.Name] {
-				return fmt.Errorf("duplicate analyzer name %q", a)
-			}
-			names[a.Name] = true
 
 			if a.Doc == "" {
 				return fmt.Errorf("analyzer %q is undocumented", a)
diff --git a/libgo/go/golang.org/x/tools/go/cfg/builder.go b/libgo/go/golang.org/x/tools/go/cfg/builder.go
index 24e1aba..7f95a29 100644
--- a/libgo/go/golang.org/x/tools/go/cfg/builder.go
+++ b/libgo/go/golang.org/x/tools/go/cfg/builder.go
@@ -149,7 +149,7 @@
 		}
 
 	case token.FALLTHROUGH:
-		for t := b.targets; t != nil; t = t.tail {
+		for t := b.targets; t != nil && block == nil; t = t.tail {
 			block = t._fallthrough
 		}
 
diff --git a/libgo/go/golang.org/x/tools/go/types/objectpath/objectpath.go b/libgo/go/golang.org/x/tools/go/types/objectpath/objectpath.go
index 0d85488..882e3b3 100644
--- a/libgo/go/golang.org/x/tools/go/types/objectpath/objectpath.go
+++ b/libgo/go/golang.org/x/tools/go/types/objectpath/objectpath.go
@@ -376,7 +376,7 @@
 		return nil, fmt.Errorf("package %s does not contain %q", pkg.Path(), pkgobj)
 	}
 
-	// abtraction of *types.{Pointer,Slice,Array,Chan,Map}
+	// abstraction of *types.{Pointer,Slice,Array,Chan,Map}
 	type hasElem interface {
 		Elem() types.Type
 	}
diff --git a/libgo/go/golang.org/x/xerrors/LICENSE b/libgo/go/golang.org/x/xerrors/LICENSE
new file mode 100644
index 0000000..e4a47e1
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c) 2019 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/libgo/go/golang.org/x/xerrors/PATENTS b/libgo/go/golang.org/x/xerrors/PATENTS
new file mode 100644
index 0000000..7330990
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/PATENTS
@@ -0,0 +1,22 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the Go project.
+
+Google hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section)
+patent license to make, have made, use, offer to sell, sell, import,
+transfer and otherwise run, modify and propagate the contents of this
+implementation of Go, where such license applies only to those patent
+claims, both currently owned or controlled by Google and acquired in
+the future, licensable by Google that are necessarily infringed by this
+implementation of Go.  This grant does not include claims that would be
+infringed only as a consequence of further modification of this
+implementation.  If you or your agent or exclusive licensee institute or
+order or agree to the institution of patent litigation against any
+entity (including a cross-claim or counterclaim in a lawsuit) alleging
+that this implementation of Go or any code incorporated within this
+implementation of Go constitutes direct or contributory patent
+infringement, or inducement of patent infringement, then any patent
+rights granted to you under this License for this implementation of Go
+shall terminate as of the date such litigation is filed.
diff --git a/libgo/go/golang.org/x/xerrors/README b/libgo/go/golang.org/x/xerrors/README
new file mode 100644
index 0000000..aac7867
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/README
@@ -0,0 +1,2 @@
+This repository holds the transition packages for the new Go 1.13 error values.
+See golang.org/design/29934-error-values.
diff --git a/libgo/go/golang.org/x/xerrors/adaptor.go b/libgo/go/golang.org/x/xerrors/adaptor.go
new file mode 100644
index 0000000..4317f24
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/adaptor.go
@@ -0,0 +1,193 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xerrors
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"reflect"
+	"strconv"
+)
+
+// FormatError calls the FormatError method of f with an errors.Printer
+// configured according to s and verb, and writes the result to s.
+func FormatError(f Formatter, s fmt.State, verb rune) {
+	// Assuming this function is only called from the Format method, and given
+	// that FormatError takes precedence over Format, it cannot be called from
+	// any package that supports errors.Formatter. It is therefore safe to
+	// disregard that State may be a specific printer implementation and use one
+	// of our choice instead.
+
+	// limitations: does not support printing error as Go struct.
+
+	var (
+		sep    = " " // separator before next error
+		p      = &state{State: s}
+		direct = true
+	)
+
+	var err error = f
+
+	switch verb {
+	// Note that this switch must match the preference order
+	// for ordinary string printing (%#v before %+v, and so on).
+
+	case 'v':
+		if s.Flag('#') {
+			if stringer, ok := err.(fmt.GoStringer); ok {
+				io.WriteString(&p.buf, stringer.GoString())
+				goto exit
+			}
+			// proceed as if it were %v
+		} else if s.Flag('+') {
+			p.printDetail = true
+			sep = "\n  - "
+		}
+	case 's':
+	case 'q', 'x', 'X':
+		// Use an intermediate buffer in the rare cases that precision,
+		// truncation, or one of the alternative verbs (q, x, and X) are
+		// specified.
+		direct = false
+
+	default:
+		p.buf.WriteString("%!")
+		p.buf.WriteRune(verb)
+		p.buf.WriteByte('(')
+		switch {
+		case err != nil:
+			p.buf.WriteString(reflect.TypeOf(f).String())
+		default:
+			p.buf.WriteString("<nil>")
+		}
+		p.buf.WriteByte(')')
+		io.Copy(s, &p.buf)
+		return
+	}
+
+loop:
+	for {
+		switch v := err.(type) {
+		case Formatter:
+			err = v.FormatError((*printer)(p))
+		case fmt.Formatter:
+			v.Format(p, 'v')
+			break loop
+		default:
+			io.WriteString(&p.buf, v.Error())
+			break loop
+		}
+		if err == nil {
+			break
+		}
+		if p.needColon || !p.printDetail {
+			p.buf.WriteByte(':')
+			p.needColon = false
+		}
+		p.buf.WriteString(sep)
+		p.inDetail = false
+		p.needNewline = false
+	}
+
+exit:
+	width, okW := s.Width()
+	prec, okP := s.Precision()
+
+	if !direct || (okW && width > 0) || okP {
+		// Construct format string from State s.
+		format := []byte{'%'}
+		if s.Flag('-') {
+			format = append(format, '-')
+		}
+		if s.Flag('+') {
+			format = append(format, '+')
+		}
+		if s.Flag(' ') {
+			format = append(format, ' ')
+		}
+		if okW {
+			format = strconv.AppendInt(format, int64(width), 10)
+		}
+		if okP {
+			format = append(format, '.')
+			format = strconv.AppendInt(format, int64(prec), 10)
+		}
+		format = append(format, string(verb)...)
+		fmt.Fprintf(s, string(format), p.buf.String())
+	} else {
+		io.Copy(s, &p.buf)
+	}
+}
+
+var detailSep = []byte("\n    ")
+
+// state tracks error printing state. It implements fmt.State.
+type state struct {
+	fmt.State
+	buf bytes.Buffer
+
+	printDetail bool
+	inDetail    bool
+	needColon   bool
+	needNewline bool
+}
+
+func (s *state) Write(b []byte) (n int, err error) {
+	if s.printDetail {
+		if len(b) == 0 {
+			return 0, nil
+		}
+		if s.inDetail && s.needColon {
+			s.needNewline = true
+			if b[0] == '\n' {
+				b = b[1:]
+			}
+		}
+		k := 0
+		for i, c := range b {
+			if s.needNewline {
+				if s.inDetail && s.needColon {
+					s.buf.WriteByte(':')
+					s.needColon = false
+				}
+				s.buf.Write(detailSep)
+				s.needNewline = false
+			}
+			if c == '\n' {
+				s.buf.Write(b[k:i])
+				k = i + 1
+				s.needNewline = true
+			}
+		}
+		s.buf.Write(b[k:])
+		if !s.inDetail {
+			s.needColon = true
+		}
+	} else if !s.inDetail {
+		s.buf.Write(b)
+	}
+	return len(b), nil
+}
+
+// printer wraps a state to implement an xerrors.Printer.
+type printer state
+
+func (s *printer) Print(args ...interface{}) {
+	if !s.inDetail || s.printDetail {
+		fmt.Fprint((*state)(s), args...)
+	}
+}
+
+func (s *printer) Printf(format string, args ...interface{}) {
+	if !s.inDetail || s.printDetail {
+		fmt.Fprintf((*state)(s), format, args...)
+	}
+}
+
+func (s *printer) Detail() bool {
+	s.inDetail = true
+	return s.printDetail
+}
diff --git a/libgo/go/golang.org/x/xerrors/codereview.cfg b/libgo/go/golang.org/x/xerrors/codereview.cfg
new file mode 100644
index 0000000..3f8b14b
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/codereview.cfg
@@ -0,0 +1 @@
+issuerepo: golang/go
diff --git a/libgo/go/golang.org/x/xerrors/doc.go b/libgo/go/golang.org/x/xerrors/doc.go
new file mode 100644
index 0000000..eef99d9
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/doc.go
@@ -0,0 +1,22 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package xerrors implements functions to manipulate errors.
+//
+// This package is based on the Go 2 proposal for error values:
+//   https://golang.org/design/29934-error-values
+//
+// These functions were incorporated into the standard library's errors package
+// in Go 1.13:
+// - Is
+// - As
+// - Unwrap
+//
+// Also, Errorf's %w verb was incorporated into fmt.Errorf.
+//
+// Use this package to get equivalent behavior in all supported Go versions.
+//
+// No other features of this package were included in Go 1.13, and at present
+// there are no plans to include any of them.
+package xerrors // import "golang.org/x/xerrors"
diff --git a/libgo/go/golang.org/x/xerrors/errors.go b/libgo/go/golang.org/x/xerrors/errors.go
new file mode 100644
index 0000000..e88d377
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/errors.go
@@ -0,0 +1,33 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xerrors
+
+import "fmt"
+
+// errorString is a trivial implementation of error.
+type errorString struct {
+	s     string
+	frame Frame
+}
+
+// New returns an error that formats as the given text.
+//
+// The returned error contains a Frame set to the caller's location and
+// implements Formatter to show this information when printed with details.
+func New(text string) error {
+	return &errorString{text, Caller(1)}
+}
+
+func (e *errorString) Error() string {
+	return e.s
+}
+
+func (e *errorString) Format(s fmt.State, v rune) { FormatError(e, s, v) }
+
+func (e *errorString) FormatError(p Printer) (next error) {
+	p.Print(e.s)
+	e.frame.Format(p)
+	return nil
+}
diff --git a/libgo/go/golang.org/x/xerrors/fmt.go b/libgo/go/golang.org/x/xerrors/fmt.go
new file mode 100644
index 0000000..74c1c93
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/fmt.go
@@ -0,0 +1,109 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xerrors
+
+import (
+	"fmt"
+	"strings"
+
+	"golang.org/x/xerrors/internal"
+)
+
+// Errorf formats according to a format specifier and returns the string as a
+// value that satisfies error.
+//
+// The returned error includes the file and line number of the caller when
+// formatted with additional detail enabled. If the last argument is an error
+// the returned error's Format method will return it if the format string ends
+// with ": %s", ": %v", or ": %w". If the last argument is an error and the
+// format string ends with ": %w", the returned error implements Wrapper
+// with an Unwrap method returning it.
+func Errorf(format string, a ...interface{}) error {
+	err, wrap := lastError(format, a)
+	format = formatPlusW(format)
+	if err == nil {
+		return &noWrapError{fmt.Sprintf(format, a...), nil, Caller(1)}
+	}
+
+	// TODO: this is not entirely correct. The error value could be
+	// printed elsewhere in format if it mixes numbered with unnumbered
+	// substitutions. With relatively small changes to doPrintf we can
+	// have it optionally ignore extra arguments and pass the argument
+	// list in its entirety.
+	msg := fmt.Sprintf(format[:len(format)-len(": %s")], a[:len(a)-1]...)
+	frame := Frame{}
+	if internal.EnableTrace {
+		frame = Caller(1)
+	}
+	if wrap {
+		return &wrapError{msg, err, frame}
+	}
+	return &noWrapError{msg, err, frame}
+}
+
+// formatPlusW is used to avoid the vet check that will barf at %w.
+func formatPlusW(s string) string {
+	return s
+}
+
+func lastError(format string, a []interface{}) (err error, wrap bool) {
+	wrap = strings.HasSuffix(format, ": %w")
+	if !wrap &&
+		!strings.HasSuffix(format, ": %s") &&
+		!strings.HasSuffix(format, ": %v") {
+		return nil, false
+	}
+
+	if len(a) == 0 {
+		return nil, false
+	}
+
+	err, ok := a[len(a)-1].(error)
+	if !ok {
+		return nil, false
+	}
+
+	return err, wrap
+}
+
+type noWrapError struct {
+	msg   string
+	err   error
+	frame Frame
+}
+
+func (e *noWrapError) Error() string {
+	return fmt.Sprint(e)
+}
+
+func (e *noWrapError) Format(s fmt.State, v rune) { FormatError(e, s, v) }
+
+func (e *noWrapError) FormatError(p Printer) (next error) {
+	p.Print(e.msg)
+	e.frame.Format(p)
+	return e.err
+}
+
+type wrapError struct {
+	msg   string
+	err   error
+	frame Frame
+}
+
+func (e *wrapError) Error() string {
+	return fmt.Sprint(e)
+}
+
+func (e *wrapError) Format(s fmt.State, v rune) { FormatError(e, s, v) }
+
+func (e *wrapError) FormatError(p Printer) (next error) {
+	p.Print(e.msg)
+	e.frame.Format(p)
+	return e.err
+}
+
+func (e *wrapError) Unwrap() error {
+	return e.err
+}
diff --git a/libgo/go/golang.org/x/xerrors/format.go b/libgo/go/golang.org/x/xerrors/format.go
new file mode 100644
index 0000000..1bc9c26
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/format.go
@@ -0,0 +1,34 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xerrors
+
+// A Formatter formats error messages.
+type Formatter interface {
+	error
+
+	// FormatError prints the receiver's first error and returns the next error in
+	// the error chain, if any.
+	FormatError(p Printer) (next error)
+}
+
+// A Printer formats error messages.
+//
+// The most common implementation of Printer is the one provided by package fmt
+// during Printf (as of Go 1.13). Localization packages such as golang.org/x/text/message
+// typically provide their own implementations.
+type Printer interface {
+	// Print appends args to the message output.
+	Print(args ...interface{})
+
+	// Printf writes a formatted string.
+	Printf(format string, args ...interface{})
+
+	// Detail reports whether error detail is requested.
+	// After the first call to Detail, all text written to the Printer
+	// is formatted as additional detail, or ignored when
+	// detail has not been requested.
+	// If Detail returns false, the caller can avoid printing the detail at all.
+	Detail() bool
+}
diff --git a/libgo/go/golang.org/x/xerrors/frame.go b/libgo/go/golang.org/x/xerrors/frame.go
new file mode 100644
index 0000000..0de628e
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/frame.go
@@ -0,0 +1,56 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xerrors
+
+import (
+	"runtime"
+)
+
+// A Frame contains part of a call stack.
+type Frame struct {
+	// Make room for three PCs: the one we were asked for, what it called,
+	// and possibly a PC for skipPleaseUseCallersFrames. See:
+	// https://go.googlesource.com/go/+/032678e0fb/src/runtime/extern.go#169
+	frames [3]uintptr
+}
+
+// Caller returns a Frame that describes a frame on the caller's stack.
+// The argument skip is the number of frames to skip over.
+// Caller(0) returns the frame for the caller of Caller.
+func Caller(skip int) Frame {
+	var s Frame
+	runtime.Callers(skip+1, s.frames[:])
+	return s
+}
+
+// location reports the file, line, and function of a frame.
+//
+// The returned function may be "" even if file and line are not.
+func (f Frame) location() (function, file string, line int) {
+	frames := runtime.CallersFrames(f.frames[:])
+	if _, ok := frames.Next(); !ok {
+		return "", "", 0
+	}
+	fr, ok := frames.Next()
+	if !ok {
+		return "", "", 0
+	}
+	return fr.Function, fr.File, fr.Line
+}
+
+// Format prints the stack as error detail.
+// It should be called from an error's Format implementation
+// after printing any other error detail.
+func (f Frame) Format(p Printer) {
+	if p.Detail() {
+		function, file, line := f.location()
+		if function != "" {
+			p.Printf("%s\n    ", function)
+		}
+		if file != "" {
+			p.Printf("%s:%d\n", file, line)
+		}
+	}
+}
diff --git a/libgo/go/golang.org/x/xerrors/go.mod b/libgo/go/golang.org/x/xerrors/go.mod
new file mode 100644
index 0000000..870d4f6
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/go.mod
@@ -0,0 +1,3 @@
+module golang.org/x/xerrors
+
+go 1.11
diff --git a/libgo/go/golang.org/x/xerrors/internal/internal.go b/libgo/go/golang.org/x/xerrors/internal/internal.go
new file mode 100644
index 0000000..89f4eca
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/internal/internal.go
@@ -0,0 +1,8 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package internal
+
+// EnableTrace indicates whether stack information should be recorded in errors.
+var EnableTrace = true
diff --git a/libgo/go/golang.org/x/xerrors/wrap.go b/libgo/go/golang.org/x/xerrors/wrap.go
new file mode 100644
index 0000000..9a3b510
--- /dev/null
+++ b/libgo/go/golang.org/x/xerrors/wrap.go
@@ -0,0 +1,106 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xerrors
+
+import (
+	"reflect"
+)
+
+// A Wrapper provides context around another error.
+type Wrapper interface {
+	// Unwrap returns the next error in the error chain.
+	// If there is no next error, Unwrap returns nil.
+	Unwrap() error
+}
+
+// Opaque returns an error with the same error formatting as err
+// but that does not match err and cannot be unwrapped.
+func Opaque(err error) error {
+	return noWrapper{err}
+}
+
+type noWrapper struct {
+	error
+}
+
+func (e noWrapper) FormatError(p Printer) (next error) {
+	if f, ok := e.error.(Formatter); ok {
+		return f.FormatError(p)
+	}
+	p.Print(e.error)
+	return nil
+}
+
+// Unwrap returns the result of calling the Unwrap method on err, if err implements
+// Unwrap. Otherwise, Unwrap returns nil.
+func Unwrap(err error) error {
+	u, ok := err.(Wrapper)
+	if !ok {
+		return nil
+	}
+	return u.Unwrap()
+}
+
+// Is reports whether any error in err's chain matches target.
+//
+// An error is considered to match a target if it is equal to that target or if
+// it implements a method Is(error) bool such that Is(target) returns true.
+func Is(err, target error) bool {
+	if target == nil {
+		return err == target
+	}
+
+	isComparable := reflect.TypeOf(target).Comparable()
+	for {
+		if isComparable && err == target {
+			return true
+		}
+		if x, ok := err.(interface{ Is(error) bool }); ok && x.Is(target) {
+			return true
+		}
+		// TODO: consider supporing target.Is(err). This would allow
+		// user-definable predicates, but also may allow for coping with sloppy
+		// APIs, thereby making it easier to get away with them.
+		if err = Unwrap(err); err == nil {
+			return false
+		}
+	}
+}
+
+// As finds the first error in err's chain that matches the type to which target
+// points, and if so, sets the target to its value and returns true. An error
+// matches a type if it is assignable to the target type, or if it has a method
+// As(interface{}) bool such that As(target) returns true. As will panic if target
+// is not a non-nil pointer to a type which implements error or is of interface type.
+//
+// The As method should set the target to its value and return true if err
+// matches the type to which target points.
+func As(err error, target interface{}) bool {
+	if target == nil {
+		panic("errors: target cannot be nil")
+	}
+	val := reflect.ValueOf(target)
+	typ := val.Type()
+	if typ.Kind() != reflect.Ptr || val.IsNil() {
+		panic("errors: target must be a non-nil pointer")
+	}
+	if e := typ.Elem(); e.Kind() != reflect.Interface && !e.Implements(errorType) {
+		panic("errors: *target must be interface or implement error")
+	}
+	targetType := typ.Elem()
+	for err != nil {
+		if reflect.TypeOf(err).AssignableTo(targetType) {
+			val.Elem().Set(reflect.ValueOf(err))
+			return true
+		}
+		if x, ok := err.(interface{ As(interface{}) bool }); ok && x.As(target) {
+			return true
+		}
+		err = Unwrap(err)
+	}
+	return false
+}
+
+var errorType = reflect.TypeOf((*error)(nil)).Elem()
diff --git a/libgo/go/hash/crc32/crc32_amd64p32.go b/libgo/go/hash/crc32/crc32_amd64p32.go
deleted file mode 100644
index f61b801..0000000
--- a/libgo/go/hash/crc32/crc32_amd64p32.go
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-package crc32
-
-import "internal/cpu"
-
-// This file contains the code to call the SSE 4.2 version of the Castagnoli
-// CRC.
-
-// castagnoliSSE42 is defined in crc32_amd64p32.s and uses the SSE4.2 CRC32
-// instruction.
-//go:noescape
-func castagnoliSSE42(crc uint32, p []byte) uint32
-
-func archAvailableCastagnoli() bool {
-	return cpu.X86.HasSSE42
-}
-
-func archInitCastagnoli() {
-	if !cpu.X86.HasSSE42 {
-		panic("not available")
-	}
-	// No initialization necessary.
-}
-
-func archUpdateCastagnoli(crc uint32, p []byte) uint32 {
-	if !cpu.X86.HasSSE42 {
-		panic("not available")
-	}
-	return castagnoliSSE42(crc, p)
-}
-
-func archAvailableIEEE() bool                    { return false }
-func archInitIEEE()                              { panic("not available") }
-func archUpdateIEEE(crc uint32, p []byte) uint32 { panic("not available") }
diff --git a/libgo/go/hash/crc32/crc32_otherarch.go b/libgo/go/hash/crc32/crc32_otherarch.go
index c3acd25..86f9fd9 100644
--- a/libgo/go/hash/crc32/crc32_otherarch.go
+++ b/libgo/go/hash/crc32/crc32_otherarch.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// -build !amd64,!amd64p32,!s390x,!ppc64le,!arm64
+// -build !amd64,!s390x,!ppc64le,!arm64
 
 package crc32
 
diff --git a/libgo/go/hash/maphash/maphash.go b/libgo/go/hash/maphash/maphash.go
new file mode 100644
index 0000000..3f406e9
--- /dev/null
+++ b/libgo/go/hash/maphash/maphash.go
@@ -0,0 +1,219 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package maphash provides hash functions on byte sequences.
+// These hash functions are intended to be used to implement hash tables or
+// other data structures that need to map arbitrary strings or byte
+// sequences to a uniform distribution of integers.
+//
+// The hash functions are collision-resistant but not cryptographically secure.
+// (See crypto/sha256 and crypto/sha512 for cryptographic use.)
+package maphash
+
+import "unsafe"
+
+// A Seed is a random value that selects the specific hash function
+// computed by a Hash. If two Hashes use the same Seeds, they
+// will compute the same hash values for any given input.
+// If two Hashes use different Seeds, they are very likely to compute
+// distinct hash values for any given input.
+//
+// A Seed must be initialized by calling MakeSeed.
+// The zero seed is uninitialized and not valid for use with Hash's SetSeed method.
+//
+// Each Seed value is local to a single process and cannot be serialized
+// or otherwise recreated in a different process.
+type Seed struct {
+	s uint64
+}
+
+// A Hash computes a seeded hash of a byte sequence.
+//
+// The zero Hash is a valid Hash ready to use.
+// A zero Hash chooses a random seed for itself during
+// the first call to a Reset, Write, Seed, Sum64, or Seed method.
+// For control over the seed, use SetSeed.
+//
+// The computed hash values depend only on the initial seed and
+// the sequence of bytes provided to the Hash object, not on the way
+// in which the bytes are provided. For example, the three sequences
+//
+//     h.Write([]byte{'f','o','o'})
+//     h.WriteByte('f'); h.WriteByte('o'); h.WriteByte('o')
+//     h.WriteString("foo")
+//
+// all have the same effect.
+//
+// Hashes are intended to be collision-resistant, even for situations
+// where an adversary controls the byte sequences being hashed.
+//
+// A Hash is not safe for concurrent use by multiple goroutines, but a Seed is.
+// If multiple goroutines must compute the same seeded hash,
+// each can declare its own Hash and call SetSeed with a common Seed.
+type Hash struct {
+	_     [0]func() // not comparable
+	seed  Seed      // initial seed used for this hash
+	state Seed      // current hash of all flushed bytes
+	buf   [64]byte  // unflushed byte buffer
+	n     int       // number of unflushed bytes
+}
+
+// initSeed seeds the hash if necessary.
+// initSeed is called lazily before any operation that actually uses h.seed/h.state.
+// Note that this does not include Write/WriteByte/WriteString in the case
+// where they only add to h.buf. (If they write too much, they call h.flush,
+// which does call h.initSeed.)
+func (h *Hash) initSeed() {
+	if h.seed.s == 0 {
+		h.SetSeed(MakeSeed())
+	}
+}
+
+// WriteByte adds b to the sequence of bytes hashed by h.
+// It never fails; the error result is for implementing io.ByteWriter.
+func (h *Hash) WriteByte(b byte) error {
+	if h.n == len(h.buf) {
+		h.flush()
+	}
+	h.buf[h.n] = b
+	h.n++
+	return nil
+}
+
+// Write adds b to the sequence of bytes hashed by h.
+// It always writes all of b and never fails; the count and error result are for implementing io.Writer.
+func (h *Hash) Write(b []byte) (int, error) {
+	size := len(b)
+	for h.n+len(b) > len(h.buf) {
+		k := copy(h.buf[h.n:], b)
+		h.n = len(h.buf)
+		b = b[k:]
+		h.flush()
+	}
+	h.n += copy(h.buf[h.n:], b)
+	return size, nil
+}
+
+// WriteString adds the bytes of s to the sequence of bytes hashed by h.
+// It always writes all of s and never fails; the count and error result are for implementing io.StringWriter.
+func (h *Hash) WriteString(s string) (int, error) {
+	size := len(s)
+	for h.n+len(s) > len(h.buf) {
+		k := copy(h.buf[h.n:], s)
+		h.n = len(h.buf)
+		s = s[k:]
+		h.flush()
+	}
+	h.n += copy(h.buf[h.n:], s)
+	return size, nil
+}
+
+// Seed returns h's seed value.
+func (h *Hash) Seed() Seed {
+	h.initSeed()
+	return h.seed
+}
+
+// SetSeed sets h to use seed, which must have been returned by MakeSeed
+// or by another Hash's Seed method.
+// Two Hash objects with the same seed behave identically.
+// Two Hash objects with different seeds will very likely behave differently.
+// Any bytes added to h before this call will be discarded.
+func (h *Hash) SetSeed(seed Seed) {
+	if seed.s == 0 {
+		panic("maphash: use of uninitialized Seed")
+	}
+	h.seed = seed
+	h.state = seed
+	h.n = 0
+}
+
+// Reset discards all bytes added to h.
+// (The seed remains the same.)
+func (h *Hash) Reset() {
+	h.initSeed()
+	h.state = h.seed
+	h.n = 0
+}
+
+// precondition: buffer is full.
+func (h *Hash) flush() {
+	if h.n != len(h.buf) {
+		panic("maphash: flush of partially full buffer")
+	}
+	h.initSeed()
+	h.state.s = rthash(h.buf[:], h.state.s)
+	h.n = 0
+}
+
+// Sum64 returns h's current 64-bit value, which depends on
+// h's seed and the sequence of bytes added to h since the
+// last call to Reset or SetSeed.
+//
+// All bits of the Sum64 result are close to uniformly and
+// independently distributed, so it can be safely reduced
+// by using bit masking, shifting, or modular arithmetic.
+func (h *Hash) Sum64() uint64 {
+	h.initSeed()
+	return rthash(h.buf[:h.n], h.state.s)
+}
+
+// MakeSeed returns a new random seed.
+func MakeSeed() Seed {
+	var s1, s2 uint64
+	for {
+		s1 = uint64(runtime_fastrand())
+		s2 = uint64(runtime_fastrand())
+		// We use seed 0 to indicate an uninitialized seed/hash,
+		// so keep trying until we get a non-zero seed.
+		if s1|s2 != 0 {
+			break
+		}
+	}
+	return Seed{s: s1<<32 + s2}
+}
+
+//go:linkname runtime_fastrand runtime.fastrand
+func runtime_fastrand() uint32
+
+func rthash(b []byte, seed uint64) uint64 {
+	if len(b) == 0 {
+		return seed
+	}
+	// The runtime hasher only works on uintptr. For 64-bit
+	// architectures, we use the hasher directly. Otherwise,
+	// we use two parallel hashers on the lower and upper 32 bits.
+	if unsafe.Sizeof(uintptr(0)) == 8 {
+		return uint64(runtime_memhash(unsafe.Pointer(&b[0]), uintptr(seed), uintptr(len(b))))
+	}
+	lo := runtime_memhash(unsafe.Pointer(&b[0]), uintptr(seed), uintptr(len(b)))
+	hi := runtime_memhash(unsafe.Pointer(&b[0]), uintptr(seed>>32), uintptr(len(b)))
+	return uint64(hi)<<32 | uint64(lo)
+}
+
+//go:linkname runtime_memhash runtime.memhash
+//go:noescape
+func runtime_memhash(p unsafe.Pointer, seed, s uintptr) uintptr
+
+// Sum appends the hash's current 64-bit value to b.
+// It exists for implementing hash.Hash.
+// For direct calls, it is more efficient to use Sum64.
+func (h *Hash) Sum(b []byte) []byte {
+	x := h.Sum64()
+	return append(b,
+		byte(x>>0),
+		byte(x>>8),
+		byte(x>>16),
+		byte(x>>24),
+		byte(x>>32),
+		byte(x>>40),
+		byte(x>>48),
+		byte(x>>56))
+}
+
+// Size returns h's hash value size, 8 bytes.
+func (h *Hash) Size() int { return 8 }
+
+// BlockSize returns h's block size.
+func (h *Hash) BlockSize() int { return len(h.buf) }
diff --git a/libgo/go/hash/maphash/maphash_test.go b/libgo/go/hash/maphash/maphash_test.go
new file mode 100644
index 0000000..31d84a3
--- /dev/null
+++ b/libgo/go/hash/maphash/maphash_test.go
@@ -0,0 +1,88 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package maphash
+
+import (
+	"hash"
+	"testing"
+)
+
+func TestUnseededHash(t *testing.T) {
+	m := map[uint64]struct{}{}
+	for i := 0; i < 1000; i++ {
+		h := new(Hash)
+		m[h.Sum64()] = struct{}{}
+	}
+	if len(m) < 900 {
+		t.Errorf("empty hash not sufficiently random: got %d, want 1000", len(m))
+	}
+}
+
+func TestSeededHash(t *testing.T) {
+	s := MakeSeed()
+	m := map[uint64]struct{}{}
+	for i := 0; i < 1000; i++ {
+		h := new(Hash)
+		h.SetSeed(s)
+		m[h.Sum64()] = struct{}{}
+	}
+	if len(m) != 1 {
+		t.Errorf("seeded hash is random: got %d, want 1", len(m))
+	}
+}
+
+func TestHashGrouping(t *testing.T) {
+	b := []byte("foo")
+	h1 := new(Hash)
+	h2 := new(Hash)
+	h2.SetSeed(h1.Seed())
+	h1.Write(b)
+	for _, x := range b {
+		err := h2.WriteByte(x)
+		if err != nil {
+			t.Fatalf("WriteByte: %v", err)
+		}
+	}
+	if h1.Sum64() != h2.Sum64() {
+		t.Errorf("hash of \"foo\" and \"f\",\"o\",\"o\" not identical")
+	}
+}
+
+func TestHashBytesVsString(t *testing.T) {
+	s := "foo"
+	b := []byte(s)
+	h1 := new(Hash)
+	h2 := new(Hash)
+	h2.SetSeed(h1.Seed())
+	n1, err1 := h1.WriteString(s)
+	if n1 != len(s) || err1 != nil {
+		t.Fatalf("WriteString(s) = %d, %v, want %d, nil", n1, err1, len(s))
+	}
+	n2, err2 := h2.Write(b)
+	if n2 != len(b) || err2 != nil {
+		t.Fatalf("Write(b) = %d, %v, want %d, nil", n2, err2, len(b))
+	}
+	if h1.Sum64() != h2.Sum64() {
+		t.Errorf("hash of string and bytes not identical")
+	}
+}
+
+func TestHashHighBytes(t *testing.T) {
+	// See issue 34925.
+	const N = 10
+	m := map[uint64]struct{}{}
+	for i := 0; i < N; i++ {
+		h := new(Hash)
+		h.WriteString("foo")
+		m[h.Sum64()>>32] = struct{}{}
+	}
+	if len(m) < N/2 {
+		t.Errorf("from %d seeds, wanted at least %d different hashes; got %d", N, N/2, len(m))
+	}
+}
+
+// Make sure a Hash implements the hash.Hash and hash.Hash64 interfaces.
+var _ hash.Hash = &Hash{}
+var _ hash.Hash64 = &Hash{}
diff --git a/libgo/go/hash/maphash/smhasher_test.go b/libgo/go/hash/maphash/smhasher_test.go
new file mode 100644
index 0000000..6e6f298
--- /dev/null
+++ b/libgo/go/hash/maphash/smhasher_test.go
@@ -0,0 +1,469 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package maphash
+
+import (
+	"fmt"
+	"math"
+	"math/rand"
+	"runtime"
+	"strings"
+	"testing"
+	"unsafe"
+)
+
+// Smhasher is a torture test for hash functions.
+// https://code.google.com/p/smhasher/
+// This code is a port of some of the Smhasher tests to Go.
+
+var fixedSeed = MakeSeed()
+
+// Sanity checks.
+// hash should not depend on values outside key.
+// hash should not depend on alignment.
+func TestSmhasherSanity(t *testing.T) {
+	r := rand.New(rand.NewSource(1234))
+	const REP = 10
+	const KEYMAX = 128
+	const PAD = 16
+	const OFFMAX = 16
+	for k := 0; k < REP; k++ {
+		for n := 0; n < KEYMAX; n++ {
+			for i := 0; i < OFFMAX; i++ {
+				var b [KEYMAX + OFFMAX + 2*PAD]byte
+				var c [KEYMAX + OFFMAX + 2*PAD]byte
+				randBytes(r, b[:])
+				randBytes(r, c[:])
+				copy(c[PAD+i:PAD+i+n], b[PAD:PAD+n])
+				if bytesHash(b[PAD:PAD+n]) != bytesHash(c[PAD+i:PAD+i+n]) {
+					t.Errorf("hash depends on bytes outside key")
+				}
+			}
+		}
+	}
+}
+
+func bytesHash(b []byte) uint64 {
+	var h Hash
+	h.SetSeed(fixedSeed)
+	h.Write(b)
+	return h.Sum64()
+}
+func stringHash(s string) uint64 {
+	var h Hash
+	h.SetSeed(fixedSeed)
+	h.WriteString(s)
+	return h.Sum64()
+}
+
+const hashSize = 64
+
+func randBytes(r *rand.Rand, b []byte) {
+	r.Read(b) // can't fail
+}
+
+// A hashSet measures the frequency of hash collisions.
+type hashSet struct {
+	m map[uint64]struct{} // set of hashes added
+	n int                 // number of hashes added
+}
+
+func newHashSet() *hashSet {
+	return &hashSet{make(map[uint64]struct{}), 0}
+}
+func (s *hashSet) add(h uint64) {
+	s.m[h] = struct{}{}
+	s.n++
+}
+func (s *hashSet) addS(x string) {
+	s.add(stringHash(x))
+}
+func (s *hashSet) addB(x []byte) {
+	s.add(bytesHash(x))
+}
+func (s *hashSet) addS_seed(x string, seed Seed) {
+	var h Hash
+	h.SetSeed(seed)
+	h.WriteString(x)
+	s.add(h.Sum64())
+}
+func (s *hashSet) check(t *testing.T) {
+	const SLOP = 10.0
+	collisions := s.n - len(s.m)
+	pairs := int64(s.n) * int64(s.n-1) / 2
+	expected := float64(pairs) / math.Pow(2.0, float64(hashSize))
+	stddev := math.Sqrt(expected)
+	if float64(collisions) > expected+SLOP*(3*stddev+1) {
+		t.Errorf("unexpected number of collisions: got=%d mean=%f stddev=%f", collisions, expected, stddev)
+	}
+}
+
+// a string plus adding zeros must make distinct hashes
+func TestSmhasherAppendedZeros(t *testing.T) {
+	s := "hello" + strings.Repeat("\x00", 256)
+	h := newHashSet()
+	for i := 0; i <= len(s); i++ {
+		h.addS(s[:i])
+	}
+	h.check(t)
+}
+
+// All 0-3 byte strings have distinct hashes.
+func TestSmhasherSmallKeys(t *testing.T) {
+	h := newHashSet()
+	var b [3]byte
+	for i := 0; i < 256; i++ {
+		b[0] = byte(i)
+		h.addB(b[:1])
+		for j := 0; j < 256; j++ {
+			b[1] = byte(j)
+			h.addB(b[:2])
+			if !testing.Short() {
+				for k := 0; k < 256; k++ {
+					b[2] = byte(k)
+					h.addB(b[:3])
+				}
+			}
+		}
+	}
+	h.check(t)
+}
+
+// Different length strings of all zeros have distinct hashes.
+func TestSmhasherZeros(t *testing.T) {
+	N := 256 * 1024
+	if testing.Short() {
+		N = 1024
+	}
+	h := newHashSet()
+	b := make([]byte, N)
+	for i := 0; i <= N; i++ {
+		h.addB(b[:i])
+	}
+	h.check(t)
+}
+
+// Strings with up to two nonzero bytes all have distinct hashes.
+func TestSmhasherTwoNonzero(t *testing.T) {
+	if runtime.GOARCH == "wasm" {
+		t.Skip("Too slow on wasm")
+	}
+	if testing.Short() {
+		t.Skip("Skipping in short mode")
+	}
+	h := newHashSet()
+	for n := 2; n <= 16; n++ {
+		twoNonZero(h, n)
+	}
+	h.check(t)
+}
+func twoNonZero(h *hashSet, n int) {
+	b := make([]byte, n)
+
+	// all zero
+	h.addB(b)
+
+	// one non-zero byte
+	for i := 0; i < n; i++ {
+		for x := 1; x < 256; x++ {
+			b[i] = byte(x)
+			h.addB(b)
+			b[i] = 0
+		}
+	}
+
+	// two non-zero bytes
+	for i := 0; i < n; i++ {
+		for x := 1; x < 256; x++ {
+			b[i] = byte(x)
+			for j := i + 1; j < n; j++ {
+				for y := 1; y < 256; y++ {
+					b[j] = byte(y)
+					h.addB(b)
+					b[j] = 0
+				}
+			}
+			b[i] = 0
+		}
+	}
+}
+
+// Test strings with repeats, like "abcdabcdabcdabcd..."
+func TestSmhasherCyclic(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping in short mode")
+	}
+	r := rand.New(rand.NewSource(1234))
+	const REPEAT = 8
+	const N = 1000000
+	for n := 4; n <= 12; n++ {
+		h := newHashSet()
+		b := make([]byte, REPEAT*n)
+		for i := 0; i < N; i++ {
+			b[0] = byte(i * 79 % 97)
+			b[1] = byte(i * 43 % 137)
+			b[2] = byte(i * 151 % 197)
+			b[3] = byte(i * 199 % 251)
+			randBytes(r, b[4:n])
+			for j := n; j < n*REPEAT; j++ {
+				b[j] = b[j-n]
+			}
+			h.addB(b)
+		}
+		h.check(t)
+	}
+}
+
+// Test strings with only a few bits set
+func TestSmhasherSparse(t *testing.T) {
+	if runtime.GOARCH == "wasm" {
+		t.Skip("Too slow on wasm")
+	}
+	if testing.Short() {
+		t.Skip("Skipping in short mode")
+	}
+	sparse(t, 32, 6)
+	sparse(t, 40, 6)
+	sparse(t, 48, 5)
+	sparse(t, 56, 5)
+	sparse(t, 64, 5)
+	sparse(t, 96, 4)
+	sparse(t, 256, 3)
+	sparse(t, 2048, 2)
+}
+func sparse(t *testing.T, n int, k int) {
+	b := make([]byte, n/8)
+	h := newHashSet()
+	setbits(h, b, 0, k)
+	h.check(t)
+}
+
+// set up to k bits at index i and greater
+func setbits(h *hashSet, b []byte, i int, k int) {
+	h.addB(b)
+	if k == 0 {
+		return
+	}
+	for j := i; j < len(b)*8; j++ {
+		b[j/8] |= byte(1 << uint(j&7))
+		setbits(h, b, j+1, k-1)
+		b[j/8] &= byte(^(1 << uint(j&7)))
+	}
+}
+
+// Test all possible combinations of n blocks from the set s.
+// "permutation" is a bad name here, but it is what Smhasher uses.
+func TestSmhasherPermutation(t *testing.T) {
+	if runtime.GOARCH == "wasm" {
+		t.Skip("Too slow on wasm")
+	}
+	if testing.Short() {
+		t.Skip("Skipping in short mode")
+	}
+	permutation(t, []uint32{0, 1, 2, 3, 4, 5, 6, 7}, 8)
+	permutation(t, []uint32{0, 1 << 29, 2 << 29, 3 << 29, 4 << 29, 5 << 29, 6 << 29, 7 << 29}, 8)
+	permutation(t, []uint32{0, 1}, 20)
+	permutation(t, []uint32{0, 1 << 31}, 20)
+	permutation(t, []uint32{0, 1, 2, 3, 4, 5, 6, 7, 1 << 29, 2 << 29, 3 << 29, 4 << 29, 5 << 29, 6 << 29, 7 << 29}, 6)
+}
+func permutation(t *testing.T, s []uint32, n int) {
+	b := make([]byte, n*4)
+	h := newHashSet()
+	genPerm(h, b, s, 0)
+	h.check(t)
+}
+func genPerm(h *hashSet, b []byte, s []uint32, n int) {
+	h.addB(b[:n])
+	if n == len(b) {
+		return
+	}
+	for _, v := range s {
+		b[n] = byte(v)
+		b[n+1] = byte(v >> 8)
+		b[n+2] = byte(v >> 16)
+		b[n+3] = byte(v >> 24)
+		genPerm(h, b, s, n+4)
+	}
+}
+
+type key interface {
+	clear()              // set bits all to 0
+	random(r *rand.Rand) // set key to something random
+	bits() int           // how many bits key has
+	flipBit(i int)       // flip bit i of the key
+	hash() uint64        // hash the key
+	name() string        // for error reporting
+}
+
+type bytesKey struct {
+	b []byte
+}
+
+func (k *bytesKey) clear() {
+	for i := range k.b {
+		k.b[i] = 0
+	}
+}
+func (k *bytesKey) random(r *rand.Rand) {
+	randBytes(r, k.b)
+}
+func (k *bytesKey) bits() int {
+	return len(k.b) * 8
+}
+func (k *bytesKey) flipBit(i int) {
+	k.b[i>>3] ^= byte(1 << uint(i&7))
+}
+func (k *bytesKey) hash() uint64 {
+	return bytesHash(k.b)
+}
+func (k *bytesKey) name() string {
+	return fmt.Sprintf("bytes%d", len(k.b))
+}
+
+// Flipping a single bit of a key should flip each output bit with 50% probability.
+func TestSmhasherAvalanche(t *testing.T) {
+	if runtime.GOARCH == "wasm" {
+		t.Skip("Too slow on wasm")
+	}
+	if testing.Short() {
+		t.Skip("Skipping in short mode")
+	}
+	avalancheTest1(t, &bytesKey{make([]byte, 2)})
+	avalancheTest1(t, &bytesKey{make([]byte, 4)})
+	avalancheTest1(t, &bytesKey{make([]byte, 8)})
+	avalancheTest1(t, &bytesKey{make([]byte, 16)})
+	avalancheTest1(t, &bytesKey{make([]byte, 32)})
+	avalancheTest1(t, &bytesKey{make([]byte, 200)})
+}
+func avalancheTest1(t *testing.T, k key) {
+	const REP = 100000
+	r := rand.New(rand.NewSource(1234))
+	n := k.bits()
+
+	// grid[i][j] is a count of whether flipping
+	// input bit i affects output bit j.
+	grid := make([][hashSize]int, n)
+
+	for z := 0; z < REP; z++ {
+		// pick a random key, hash it
+		k.random(r)
+		h := k.hash()
+
+		// flip each bit, hash & compare the results
+		for i := 0; i < n; i++ {
+			k.flipBit(i)
+			d := h ^ k.hash()
+			k.flipBit(i)
+
+			// record the effects of that bit flip
+			g := &grid[i]
+			for j := 0; j < hashSize; j++ {
+				g[j] += int(d & 1)
+				d >>= 1
+			}
+		}
+	}
+
+	// Each entry in the grid should be about REP/2.
+	// More precisely, we did N = k.bits() * hashSize experiments where
+	// each is the sum of REP coin flips. We want to find bounds on the
+	// sum of coin flips such that a truly random experiment would have
+	// all sums inside those bounds with 99% probability.
+	N := n * hashSize
+	var c float64
+	// find c such that Prob(mean-c*stddev < x < mean+c*stddev)^N > .9999
+	for c = 0.0; math.Pow(math.Erf(c/math.Sqrt(2)), float64(N)) < .9999; c += .1 {
+	}
+	c *= 4.0 // allowed slack - we don't need to be perfectly random
+	mean := .5 * REP
+	stddev := .5 * math.Sqrt(REP)
+	low := int(mean - c*stddev)
+	high := int(mean + c*stddev)
+	for i := 0; i < n; i++ {
+		for j := 0; j < hashSize; j++ {
+			x := grid[i][j]
+			if x < low || x > high {
+				t.Errorf("bad bias for %s bit %d -> bit %d: %d/%d\n", k.name(), i, j, x, REP)
+			}
+		}
+	}
+}
+
+// All bit rotations of a set of distinct keys
+func TestSmhasherWindowed(t *testing.T) {
+	windowed(t, &bytesKey{make([]byte, 128)})
+}
+func windowed(t *testing.T, k key) {
+	if runtime.GOARCH == "wasm" {
+		t.Skip("Too slow on wasm")
+	}
+	if testing.Short() {
+		t.Skip("Skipping in short mode")
+	}
+	const BITS = 16
+
+	for r := 0; r < k.bits(); r++ {
+		h := newHashSet()
+		for i := 0; i < 1<<BITS; i++ {
+			k.clear()
+			for j := 0; j < BITS; j++ {
+				if i>>uint(j)&1 != 0 {
+					k.flipBit((j + r) % k.bits())
+				}
+			}
+			h.add(k.hash())
+		}
+		h.check(t)
+	}
+}
+
+// All keys of the form prefix + [A-Za-z0-9]*N + suffix.
+func TestSmhasherText(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping in short mode")
+	}
+	text(t, "Foo", "Bar")
+	text(t, "FooBar", "")
+	text(t, "", "FooBar")
+}
+func text(t *testing.T, prefix, suffix string) {
+	const N = 4
+	const S = "ABCDEFGHIJKLMNOPQRSTabcdefghijklmnopqrst0123456789"
+	const L = len(S)
+	b := make([]byte, len(prefix)+N+len(suffix))
+	copy(b, prefix)
+	copy(b[len(prefix)+N:], suffix)
+	h := newHashSet()
+	c := b[len(prefix):]
+	for i := 0; i < L; i++ {
+		c[0] = S[i]
+		for j := 0; j < L; j++ {
+			c[1] = S[j]
+			for k := 0; k < L; k++ {
+				c[2] = S[k]
+				for x := 0; x < L; x++ {
+					c[3] = S[x]
+					h.addB(b)
+				}
+			}
+		}
+	}
+	h.check(t)
+}
+
+// Make sure different seed values generate different hashes.
+func TestSmhasherSeed(t *testing.T) {
+	if unsafe.Sizeof(uintptr(0)) == 4 {
+		t.Skip("32-bit platforms don't have ideal seed-input distributions (see issue 33988)")
+	}
+	h := newHashSet()
+	const N = 100000
+	s := "hello"
+	for i := 0; i < N; i++ {
+		h.addS_seed(s, Seed{s: uint64(i + 1)})
+		h.addS_seed(s, Seed{s: uint64(i+1) << 32}) // make sure high bits are used
+	}
+	h.check(t)
+}
diff --git a/libgo/go/html/template/doc.go b/libgo/go/html/template/doc.go
index 290ec81..650e714 100644
--- a/libgo/go/html/template/doc.go
+++ b/libgo/go/html/template/doc.go
@@ -73,6 +73,51 @@
 For these internal escaping functions, if an action pipeline evaluates to
 a nil interface value, it is treated as though it were an empty string.
 
+Namespaced and data- attributes
+
+Attributes with a namespace are treated as if they had no namespace.
+Given the excerpt
+
+  <a my:href="{{.}}"></a>
+
+At parse time the attribute will be treated as if it were just "href".
+So at parse time the template becomes:
+
+  <a my:href="{{. | urlescaper | attrescaper}}"></a>
+
+Similarly to attributes with namespaces, attributes with a "data-" prefix are
+treated as if they had no "data-" prefix. So given
+
+  <a data-href="{{.}}"></a>
+
+At parse time this becomes
+
+  <a data-href="{{. | urlescaper | attrescaper}}"></a>
+
+If an attribute has both a namespace and a "data-" prefix, only the namespace
+will be removed when determining the context. For example
+
+  <a my:data-href="{{.}}"></a>
+
+This is handled as if "my:data-href" was just "data-href" and not "href" as
+it would be if the "data-" prefix were to be ignored too. Thus at parse
+time this becomes just
+
+  <a my:data-href="{{. | attrescaper}}"></a>
+
+As a special case, attributes with the namespace "xmlns" are always treated
+as containing URLs. Given the excerpts
+
+  <a xmlns:title="{{.}}"></a>
+  <a xmlns:href="{{.}}"></a>
+  <a xmlns:onclick="{{.}}"></a>
+
+At parse time they become:
+
+  <a xmlns:title="{{. | urlescaper | attrescaper}}"></a>
+  <a xmlns:href="{{. | urlescaper | attrescaper}}"></a>
+  <a xmlns:onclick="{{. | urlescaper | attrescaper}}"></a>
+
 Errors
 
 See the documentation of ErrorCode for details.
diff --git a/libgo/go/html/template/example_test.go b/libgo/go/html/template/example_test.go
index 533c0dd..9d965f1 100644
--- a/libgo/go/html/template/example_test.go
+++ b/libgo/go/html/template/example_test.go
@@ -116,9 +116,9 @@
 	// &#34;Fran &amp; Freddie&#39;s Diner&#34; &lt;tasty@example.com&gt;
 	// &#34;Fran &amp; Freddie&#39;s Diner&#34; &lt;tasty@example.com&gt;
 	// &#34;Fran &amp; Freddie&#39;s Diner&#34;32&lt;tasty@example.com&gt;
-	// \"Fran & Freddie\'s Diner\" \x3Ctasty@example.com\x3E
-	// \"Fran & Freddie\'s Diner\" \x3Ctasty@example.com\x3E
-	// \"Fran & Freddie\'s Diner\"32\x3Ctasty@example.com\x3E
+	// \"Fran \x26 Freddie\'s Diner\" \x3Ctasty@example.com\x3E
+	// \"Fran \x26 Freddie\'s Diner\" \x3Ctasty@example.com\x3E
+	// \"Fran \x26 Freddie\'s Diner\"32\x3Ctasty@example.com\x3E
 	// %22Fran+%26+Freddie%27s+Diner%2232%3Ctasty%40example.com%3E
 
 }
diff --git a/libgo/go/html/template/js.go b/libgo/go/html/template/js.go
index 7025c1c..0e91458 100644
--- a/libgo/go/html/template/js.go
+++ b/libgo/go/html/template/js.go
@@ -383,11 +383,11 @@
 	//   https://tools.ietf.org/html/rfc7231#section-3.1.1
 	//   https://tools.ietf.org/html/rfc4329#section-3
 	//   https://www.ietf.org/rfc/rfc4627.txt
-	mimeType = strings.ToLower(mimeType)
 	// discard parameters
 	if i := strings.Index(mimeType, ";"); i >= 0 {
 		mimeType = mimeType[:i]
 	}
+	mimeType = strings.ToLower(mimeType)
 	mimeType = strings.TrimSpace(mimeType)
 	switch mimeType {
 	case
diff --git a/libgo/go/image/gif/writer_test.go b/libgo/go/image/gif/writer_test.go
index 0bc24d1..b619961 100644
--- a/libgo/go/image/gif/writer_test.go
+++ b/libgo/go/image/gif/writer_test.go
@@ -52,7 +52,7 @@
 }
 
 // averageDeltaBounds returns the average delta in RGB space. The average delta is
-// calulated in the specified bounds.
+// calculated in the specified bounds.
 func averageDeltaBound(m0, m1 image.Image, b0, b1 image.Rectangle) int64 {
 	var sum, n int64
 	for y := b0.Min.Y; y < b0.Max.Y; y++ {
diff --git a/libgo/go/image/png/writer.go b/libgo/go/image/png/writer.go
index 2bd4fde..53adc16 100644
--- a/libgo/go/image/png/writer.go
+++ b/libgo/go/image/png/writer.go
@@ -426,10 +426,11 @@
 
 			var a uint8
 			var c int
+			pixelsPerByte := 8 / bitsPerPixel
 			for x := b.Min.X; x < b.Max.X; x++ {
 				a = a<<uint(bitsPerPixel) | pi.ColorIndexAt(x, y)
 				c++
-				if c == 8/bitsPerPixel {
+				if c == pixelsPerByte {
 					cr[0][i] = a
 					i += 1
 					a = 0
@@ -437,7 +438,7 @@
 				}
 			}
 			if c != 0 {
-				for c != 8/bitsPerPixel {
+				for c != pixelsPerByte {
 					a = a << uint(bitsPerPixel)
 					c++
 				}
diff --git a/libgo/go/internal/bytealg/compare_generic.go b/libgo/go/internal/bytealg/compare_generic.go
index c72bf12..a29e8e7 100644
--- a/libgo/go/internal/bytealg/compare_generic.go
+++ b/libgo/go/internal/bytealg/compare_generic.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // +build ignore_for_gccgo
-// +build !386,!amd64,!amd64p32,!s390x,!arm,!arm64,!ppc64,!ppc64le,!mips,!mipsle,!wasm
+// +build !386,!amd64,!s390x,!arm,!arm64,!ppc64,!ppc64le,!mips,!mipsle,!wasm,!mips64,!mips64le
 
 package bytealg
 
diff --git a/libgo/go/internal/bytealg/compare_native.go b/libgo/go/internal/bytealg/compare_native.go
index 844d669..b189998 100644
--- a/libgo/go/internal/bytealg/compare_native.go
+++ b/libgo/go/internal/bytealg/compare_native.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// -build 386 amd64 amd64p32 s390x arm arm64 ppc64 ppc64le mips mipsle wasm
+// -build 386 amd64 s390x arm arm64 ppc64 ppc64le mips mipsle wasm mips64 mips64le
 
 package bytealg
 
diff --git a/libgo/go/internal/bytealg/count_generic.go b/libgo/go/internal/bytealg/count_generic.go
index bdec269..e95cd1c 100644
--- a/libgo/go/internal/bytealg/count_generic.go
+++ b/libgo/go/internal/bytealg/count_generic.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// -build !amd64,!arm,!arm64,!ppc64le,!ppc64
+// -build !amd64,!arm,!arm64,!ppc64le,!ppc64,!s390x
 
 package bytealg
 
diff --git a/libgo/go/internal/bytealg/count_native.go b/libgo/go/internal/bytealg/count_native.go
index e084e43..16ff348 100644
--- a/libgo/go/internal/bytealg/count_native.go
+++ b/libgo/go/internal/bytealg/count_native.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // +build ignore_for_gccgo
-// +build amd64 arm arm64 ppc64le ppc64
+// +build amd64 arm arm64 ppc64le ppc64 s390x
 
 package bytealg
 
diff --git a/libgo/go/internal/bytealg/indexbyte_generic.go b/libgo/go/internal/bytealg/indexbyte_generic.go
index d39dfa8..a863d81 100644
--- a/libgo/go/internal/bytealg/indexbyte_generic.go
+++ b/libgo/go/internal/bytealg/indexbyte_generic.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // +build ignore_for_gccgo
-// +build !386,!amd64,!amd64p32,!s390x,!arm,!arm64,!ppc64,!ppc64le,!mips,!mipsle,!mips64,!mips64le,!wasm
+// +build !386,!amd64,!s390x,!arm,!arm64,!ppc64,!ppc64le,!mips,!mipsle,!mips64,!mips64le,!riscv64,!wasm
 
 package bytealg
 
diff --git a/libgo/go/internal/bytealg/indexbyte_native.go b/libgo/go/internal/bytealg/indexbyte_native.go
index 5cf6fed..20da788 100644
--- a/libgo/go/internal/bytealg/indexbyte_native.go
+++ b/libgo/go/internal/bytealg/indexbyte_native.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// -build 386 amd64 amd64p32 s390x arm arm64 ppc64 ppc64le mips mipsle mips64 mips64le wasm
+// -build 386 amd64 s390x arm arm64 ppc64 ppc64le mips mipsle mips64 mips64le riscv64 wasm
 
 package bytealg
 
diff --git a/libgo/go/internal/cfg/cfg.go b/libgo/go/internal/cfg/cfg.go
index 4c2cf8e..0d227ec 100644
--- a/libgo/go/internal/cfg/cfg.go
+++ b/libgo/go/internal/cfg/cfg.go
@@ -43,6 +43,7 @@
 	GOGCCFLAGS
 	GOHOSTARCH
 	GOHOSTOS
+	GOINSECURE
 	GOMIPS
 	GOMIPS64
 	GONOPROXY
diff --git a/libgo/go/internal/cpu/cpu.go b/libgo/go/internal/cpu/cpu.go
index 76fc878..f326b06 100644
--- a/libgo/go/internal/cpu/cpu.go
+++ b/libgo/go/internal/cpu/cpu.go
@@ -160,7 +160,7 @@
 
 // processOptions enables or disables CPU feature values based on the parsed env string.
 // The env string is expected to be of the form cpu.feature1=value1,cpu.feature2=value2...
-// where feature names is one of the architecture specifc list stored in the
+// where feature names is one of the architecture specific list stored in the
 // cpu packages options variable and values are either 'on' or 'off'.
 // If env contains cpu.all=off then all cpu features referenced through the options
 // variable are disabled. Other feature names and values result in warning messages.
diff --git a/libgo/go/internal/cpu/cpu_no_init.go b/libgo/go/internal/cpu/cpu_no_init.go
index 777ea9d..d4b2be8 100644
--- a/libgo/go/internal/cpu/cpu_no_init.go
+++ b/libgo/go/internal/cpu/cpu_no_init.go
@@ -4,7 +4,6 @@
 
 // +build !386
 // +build !amd64
-// +build !amd64p32
 // +build !arm
 // +build !arm64
 // +build !ppc64
diff --git a/libgo/go/internal/cpu/cpu_riscv64.go b/libgo/go/internal/cpu/cpu_riscv64.go
new file mode 100644
index 0000000..c49cab7
--- /dev/null
+++ b/libgo/go/internal/cpu/cpu_riscv64.go
@@ -0,0 +1,7 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package cpu
+
+const CacheLinePadSize = 32
diff --git a/libgo/go/internal/cpu/cpu_x86.go b/libgo/go/internal/cpu/cpu_x86.go
index fc9b9d3..eceeb44 100644
--- a/libgo/go/internal/cpu/cpu_x86.go
+++ b/libgo/go/internal/cpu/cpu_x86.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build 386 amd64 amd64p32
+// +build 386 amd64
 
 package cpu
 
@@ -53,8 +53,8 @@
 		{Name: "sse42", Feature: &X86.HasSSE42},
 		{Name: "ssse3", Feature: &X86.HasSSSE3},
 
-		// These capabilities should always be enabled on amd64(p32):
-		{Name: "sse2", Feature: &X86.HasSSE2, Required: GOARCH == "amd64" || GOARCH == "amd64p32"},
+		// These capabilities should always be enabled on amd64:
+		{Name: "sse2", Feature: &X86.HasSSE2, Required: GOARCH == "amd64"},
 	}
 
 	maxID, _, _, _ := cpuid(0, 0)
diff --git a/libgo/go/internal/cpu/cpu_x86_test.go b/libgo/go/internal/cpu/cpu_x86_test.go
index 9e93d1a..61db93b 100644
--- a/libgo/go/internal/cpu/cpu_x86_test.go
+++ b/libgo/go/internal/cpu/cpu_x86_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build 386 amd64 amd64p32
+// +build 386 amd64
 
 package cpu_test
 
diff --git a/libgo/go/internal/fmtsort/sort.go b/libgo/go/internal/fmtsort/sort.go
index 70a305a..b01229b 100644
--- a/libgo/go/internal/fmtsort/sort.go
+++ b/libgo/go/internal/fmtsort/sort.go
@@ -53,12 +53,16 @@
 	if mapValue.Type().Kind() != reflect.Map {
 		return nil
 	}
-	key := make([]reflect.Value, mapValue.Len())
-	value := make([]reflect.Value, len(key))
+	// Note: this code is arranged to not panic even in the presence
+	// of a concurrent map update. The runtime is responsible for
+	// yelling loudly if that happens. See issue 33275.
+	n := mapValue.Len()
+	key := make([]reflect.Value, 0, n)
+	value := make([]reflect.Value, 0, n)
 	iter := mapValue.MapRange()
-	for i := 0; iter.Next(); i++ {
-		key[i] = iter.Key()
-		value[i] = iter.Value()
+	for iter.Next() {
+		key = append(key, iter.Key())
+		value = append(value, iter.Value())
 	}
 	sorted := &SortedMap{
 		Key:   key,
diff --git a/libgo/go/internal/fmtsort/sort_test.go b/libgo/go/internal/fmtsort/sort_test.go
index e060d4b..aaa0004 100644
--- a/libgo/go/internal/fmtsort/sort_test.go
+++ b/libgo/go/internal/fmtsort/sort_test.go
@@ -119,7 +119,7 @@
 		"PTR0:0 PTR1:1 PTR2:2",
 	},
 	{
-		map[toy]string{toy{7, 2}: "72", toy{7, 1}: "71", toy{3, 4}: "34"},
+		map[toy]string{{7, 2}: "72", {7, 1}: "71", {3, 4}: "34"},
 		"{3 4}:34 {7 1}:71 {7 2}:72",
 	},
 	{
diff --git a/libgo/go/internal/goroot/gc.go b/libgo/go/internal/goroot/gc.go
index 9d846d8..0f541d7 100644
--- a/libgo/go/internal/goroot/gc.go
+++ b/libgo/go/internal/goroot/gc.go
@@ -121,18 +121,9 @@
 	}
 
 	for _, dir := range gd.dirs {
-		full := filepath.Join(dir, path)
-		pkgdir, pkg := filepath.Split(full)
-		for _, p := range [...]string{
-			full,
-			full + ".gox",
-			pkgdir + "lib" + pkg + ".so",
-			pkgdir + "lib" + pkg + ".a",
-			full + ".o",
-		} {
-			if fi, err := os.Stat(p); err == nil && !fi.IsDir() {
-				return true
-			}
+		full := filepath.Join(dir, path) + ".gox"
+		if fi, err := os.Stat(full); err == nil && !fi.IsDir() {
+			return true
 		}
 	}
 
diff --git a/libgo/go/internal/goversion/goversion.go b/libgo/go/internal/goversion/goversion.go
index 8f9c7c9..c578333 100644
--- a/libgo/go/internal/goversion/goversion.go
+++ b/libgo/go/internal/goversion/goversion.go
@@ -10,4 +10,4 @@
 //
 // When incrementing this, also add to the list at src/go/build/doc.go
 // (search for "onward").
-const Version = 13
+const Version = 14
diff --git a/libgo/go/internal/obscuretestdata/obscuretestdata.go b/libgo/go/internal/obscuretestdata/obscuretestdata.go
new file mode 100644
index 0000000..512f375
--- /dev/null
+++ b/libgo/go/internal/obscuretestdata/obscuretestdata.go
@@ -0,0 +1,51 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package obscuretestdata contains functionality used by tests to more easily
+// work with testdata that must be obscured primarily due to
+// golang.org/issue/34986.
+package obscuretestdata
+
+import (
+	"encoding/base64"
+	"io"
+	"io/ioutil"
+	"os"
+)
+
+// DecodeToTempFile decodes the named file to a temporary location.
+// If successful, it returns the path of the decoded file.
+// The caller is responsible for ensuring that the temporary file is removed.
+func DecodeToTempFile(name string) (path string, err error) {
+	f, err := os.Open(name)
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+
+	tmp, err := ioutil.TempFile("", "obscuretestdata-decoded-")
+	if err != nil {
+		return "", err
+	}
+	if _, err := io.Copy(tmp, base64.NewDecoder(base64.StdEncoding, f)); err != nil {
+		tmp.Close()
+		os.Remove(tmp.Name())
+		return "", err
+	}
+	if err := tmp.Close(); err != nil {
+		os.Remove(tmp.Name())
+		return "", err
+	}
+	return tmp.Name(), nil
+}
+
+// ReadFile reads the named file and returns its decoded contents.
+func ReadFile(name string) ([]byte, error) {
+	f, err := os.Open(name)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	return ioutil.ReadAll(base64.NewDecoder(base64.StdEncoding, f))
+}
diff --git a/libgo/go/internal/poll/export_posix_test.go b/libgo/go/internal/poll/export_posix_test.go
index 8c78394..8ab4fd6 100644
--- a/libgo/go/internal/poll/export_posix_test.go
+++ b/libgo/go/internal/poll/export_posix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris windows
 
 // Export guts for testing on posix.
 // Since testing imports os and os imports internal/poll,
diff --git a/libgo/go/internal/poll/fd_fsync_posix.go b/libgo/go/internal/poll/fd_fsync_posix.go
index f76f9ec..67b76f8 100644
--- a/libgo/go/internal/poll/fd_fsync_posix.go
+++ b/libgo/go/internal/poll/fd_fsync_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package poll
 
diff --git a/libgo/go/internal/poll/fd_poll_nacljs.go b/libgo/go/internal/poll/fd_poll_js.go
similarity index 98%
rename from libgo/go/internal/poll/fd_poll_nacljs.go
rename to libgo/go/internal/poll/fd_poll_js.go
index 0871f34..2bfeb0a 100644
--- a/libgo/go/internal/poll/fd_poll_nacljs.go
+++ b/libgo/go/internal/poll/fd_poll_js.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl js,wasm
+// +build js,wasm
 
 package poll
 
diff --git a/libgo/go/internal/poll/fd_posix.go b/libgo/go/internal/poll/fd_posix.go
index 7d452df..9eaec36 100644
--- a/libgo/go/internal/poll/fd_posix.go
+++ b/libgo/go/internal/poll/fd_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package poll
 
diff --git a/libgo/go/internal/poll/fd_posix_test.go b/libgo/go/internal/poll/fd_posix_test.go
index cf2669a..dfcfd5c 100644
--- a/libgo/go/internal/poll/fd_posix_test.go
+++ b/libgo/go/internal/poll/fd_posix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris windows
 
 package poll_test
 
diff --git a/libgo/go/internal/poll/fd_unix.go b/libgo/go/internal/poll/fd_unix.go
index bdaf962..6b8e476 100644
--- a/libgo/go/internal/poll/fd_unix.go
+++ b/libgo/go/internal/poll/fd_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package poll
 
diff --git a/libgo/go/internal/poll/hook_unix.go b/libgo/go/internal/poll/hook_unix.go
index 9678cb5..7bb6f88 100644
--- a/libgo/go/internal/poll/hook_unix.go
+++ b/libgo/go/internal/poll/hook_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package poll
 
diff --git a/libgo/go/internal/poll/sendfile_windows.go b/libgo/go/internal/poll/sendfile_windows.go
index 0fe9b9b..5674af4 100644
--- a/libgo/go/internal/poll/sendfile_windows.go
+++ b/libgo/go/internal/poll/sendfile_windows.go
@@ -4,10 +4,13 @@
 
 package poll
 
-import "syscall"
+import (
+	"io"
+	"syscall"
+)
 
 // SendFile wraps the TransmitFile call.
-func SendFile(fd *FD, src syscall.Handle, n int64) (int64, error) {
+func SendFile(fd *FD, src syscall.Handle, n int64) (written int64, err error) {
 	if fd.kind == kindPipe {
 		// TransmitFile does not work with pipes
 		return 0, syscall.ESPIPE
@@ -19,26 +22,60 @@
 	defer fd.writeUnlock()
 
 	o := &fd.wop
-	o.qty = uint32(n)
 	o.handle = src
 
 	// TODO(brainman): skip calling syscall.Seek if OS allows it
-	curpos, err := syscall.Seek(o.handle, 0, 1)
+	curpos, err := syscall.Seek(o.handle, 0, io.SeekCurrent)
 	if err != nil {
 		return 0, err
 	}
 
-	o.o.Offset = uint32(curpos)
-	o.o.OffsetHigh = uint32(curpos >> 32)
+	if n <= 0 { // We don't know the size of the file so infer it.
+		// Find the number of bytes offset from curpos until the end of the file.
+		n, err = syscall.Seek(o.handle, -curpos, io.SeekEnd)
+		if err != nil {
+			return
+		}
+		// Now seek back to the original position.
+		if _, err = syscall.Seek(o.handle, curpos, io.SeekStart); err != nil {
+			return
+		}
+	}
 
-	done, err := wsrv.ExecIO(o, func(o *operation) error {
-		return syscall.TransmitFile(o.fd.Sysfd, o.handle, o.qty, 0, &o.o, nil, syscall.TF_WRITE_BEHIND)
-	})
-	if err == nil {
+	// TransmitFile can be invoked in one call with at most
+	// 2,147,483,646 bytes: the maximum value for a 32-bit integer minus 1.
+	// See https://docs.microsoft.com/en-us/windows/win32/api/mswsock/nf-mswsock-transmitfile
+	const maxChunkSizePerCall = int64(0x7fffffff - 1)
+
+	for n > 0 {
+		chunkSize := maxChunkSizePerCall
+		if chunkSize > n {
+			chunkSize = n
+		}
+
+		o.qty = uint32(chunkSize)
+		o.o.Offset = uint32(curpos)
+		o.o.OffsetHigh = uint32(curpos >> 32)
+
+		nw, err := wsrv.ExecIO(o, func(o *operation) error {
+			return syscall.TransmitFile(o.fd.Sysfd, o.handle, o.qty, 0, &o.o, nil, syscall.TF_WRITE_BEHIND)
+		})
+		if err != nil {
+			return written, err
+		}
+
+		curpos += int64(nw)
+
 		// Some versions of Windows (Windows 10 1803) do not set
 		// file position after TransmitFile completes.
 		// So just use Seek to set file position.
-		_, err = syscall.Seek(o.handle, curpos+int64(done), 0)
+		if _, err = syscall.Seek(o.handle, curpos, io.SeekStart); err != nil {
+			return written, err
+		}
+
+		n -= int64(nw)
+		written += int64(nw)
 	}
-	return int64(done), err
+
+	return
 }
diff --git a/libgo/go/internal/poll/sys_cloexec.go b/libgo/go/internal/poll/sys_cloexec.go
index 64e4612..7b87f13 100644
--- a/libgo/go/internal/poll/sys_cloexec.go
+++ b/libgo/go/internal/poll/sys_cloexec.go
@@ -5,7 +5,7 @@
 // This file implements sysSocket and accept for platforms that do not
 // provide a fast path for setting SetNonblock and CloseOnExec.
 
-// +build aix darwin js,wasm nacl solaris
+// +build aix darwin js,wasm solaris
 
 package poll
 
diff --git a/libgo/go/internal/reflectlite/reflect_mirror_test.go b/libgo/go/internal/reflectlite/reflect_mirror_test.go
new file mode 100644
index 0000000..fbb6fb3
--- /dev/null
+++ b/libgo/go/internal/reflectlite/reflect_mirror_test.go
@@ -0,0 +1,131 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package reflectlite_test
+
+import (
+	"fmt"
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"sync"
+	"testing"
+)
+
+var typeNames = []string{
+	"rtype",
+	"uncommonType",
+	"arrayType",
+	"chanType",
+	"funcType",
+	"interfaceType",
+	"mapType",
+	"ptrType",
+	"sliceType",
+	"structType",
+}
+
+type visitor struct {
+	m map[string]map[string]bool
+}
+
+func newVisitor() visitor {
+	v := visitor{}
+	v.m = make(map[string]map[string]bool)
+
+	return v
+}
+func (v visitor) filter(name string) bool {
+	for _, typeName := range typeNames {
+		if typeName == name {
+			return true
+		}
+	}
+	return false
+}
+
+func (v visitor) Visit(n ast.Node) ast.Visitor {
+	switch x := n.(type) {
+	case *ast.TypeSpec:
+		if v.filter(x.Name.String()) {
+			if st, ok := x.Type.(*ast.StructType); ok {
+				v.m[x.Name.String()] = make(map[string]bool)
+				for _, field := range st.Fields.List {
+					k := fmt.Sprintf("%s", field.Type)
+					if len(field.Names) > 0 {
+						k = field.Names[0].Name
+					}
+					v.m[x.Name.String()][k] = true
+				}
+			}
+		}
+	}
+	return v
+}
+
+func loadTypes(path, pkgName string, v visitor) {
+	fset := token.NewFileSet()
+
+	filter := func(fi os.FileInfo) bool {
+		return strings.HasSuffix(fi.Name(), ".go")
+	}
+	pkgs, err := parser.ParseDir(fset, path, filter, 0)
+	if err != nil {
+		panic(err)
+	}
+
+	pkg := pkgs[pkgName]
+
+	for _, f := range pkg.Files {
+		ast.Walk(v, f)
+	}
+}
+
+func TestMirrorWithReflect(t *testing.T) {
+	reflectDir := filepath.Join(runtime.GOROOT(), "src", "reflect")
+	if _, err := os.Stat(reflectDir); os.IsNotExist(err) {
+		// On some mobile builders, the test binary executes on a machine without a
+		// complete GOROOT source tree.
+		t.Skipf("GOROOT source not present")
+	}
+
+	var wg sync.WaitGroup
+	rl, r := newVisitor(), newVisitor()
+
+	for _, tc := range []struct {
+		path, pkg string
+		v         visitor
+	}{
+		{".", "reflectlite", rl},
+		{reflectDir, "reflect", r},
+	} {
+		tc := tc
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			loadTypes(tc.path, tc.pkg, tc.v)
+		}()
+	}
+	wg.Wait()
+
+	if len(rl.m) != len(r.m) {
+		t.Fatalf("number of types mismatch, reflect: %d, reflectlite: %d", len(r.m), len(rl.m))
+	}
+
+	for typName := range r.m {
+		if len(r.m[typName]) != len(rl.m[typName]) {
+			t.Errorf("type %s number of fields mismatch, reflect: %d, reflectlite: %d", typName, len(r.m[typName]), len(rl.m[typName]))
+			continue
+		}
+		for field := range r.m[typName] {
+			if _, ok := rl.m[typName][field]; !ok {
+				t.Errorf(`Field mismatch, reflect have "%s", relectlite does not.`, field)
+			}
+		}
+	}
+}
diff --git a/libgo/go/internal/reflectlite/set_test.go b/libgo/go/internal/reflectlite/set_test.go
index 817e4be..a610499 100644
--- a/libgo/go/internal/reflectlite/set_test.go
+++ b/libgo/go/internal/reflectlite/set_test.go
@@ -39,6 +39,8 @@
 	{new(notASTExpr), new(ast.Expr), false},
 	{new(ast.Expr), new(notASTExpr), false},
 	{new(*notAnExpr), new(notASTExpr), true},
+	{new(mapError), new(error), true},
+	{new(*mapError), new(error), true},
 }
 
 type notAnExpr struct{}
@@ -53,6 +55,13 @@
 	exprNode()
 }
 
+type mapError map[string]string
+
+func (mapError) Error() string { return "mapError" }
+
+var _ error = mapError{}
+var _ error = new(mapError)
+
 func TestImplements(t *testing.T) {
 	for _, tt := range implementsTests {
 		xv := TypeOf(tt.x).Elem()
diff --git a/libgo/go/internal/reflectlite/type.go b/libgo/go/internal/reflectlite/type.go
index 35cf1a4..e700a55 100644
--- a/libgo/go/internal/reflectlite/type.go
+++ b/libgo/go/internal/reflectlite/type.go
@@ -351,6 +351,10 @@
 	return t.uncommonType.PkgPath()
 }
 
+func (t *rtype) hasName() bool {
+	return t.uncommonType != nil && t.uncommonType.name != nil
+}
+
 func (t *rtype) Name() string {
 	return t.uncommonType.Name()
 }
@@ -574,7 +578,7 @@
 
 	// Otherwise at least one of T and V must not be defined
 	// and they must have the same kind.
-	if T.Name() != "" && V.Name() != "" || T.Kind() != V.Kind() {
+	if T.hasName() && V.hasName() || T.Kind() != V.Kind() {
 		return false
 	}
 
diff --git a/libgo/go/internal/reflectlite/value.go b/libgo/go/internal/reflectlite/value.go
index bfc321f..9a14d18 100644
--- a/libgo/go/internal/reflectlite/value.go
+++ b/libgo/go/internal/reflectlite/value.go
@@ -180,16 +180,6 @@
 	word unsafe.Pointer
 }
 
-// nonEmptyInterface is the header for an interface value with methods.
-type nonEmptyInterface struct {
-	// see ../runtime/iface.go:/Itab
-	itab *struct {
-		typ *rtype                 // dynamic concrete type
-		fun [100000]unsafe.Pointer // method table
-	}
-	word unsafe.Pointer
-}
-
 // mustBeExported panics if f records that the value was obtained using
 // an unexported field.
 func (f flag) mustBeExported() {
@@ -316,7 +306,7 @@
 // IsValid reports whether v represents a value.
 // It returns false if v is the zero Value.
 // If IsValid returns false, all other methods except String panic.
-// Most functions and methods never return an invalid value.
+// Most functions and methods never return an invalid Value.
 // If one does, its documentation states the conditions explicitly.
 func (v Value) IsValid() bool {
 	return v.flag != 0
diff --git a/libgo/go/internal/singleflight/singleflight_test.go b/libgo/go/internal/singleflight/singleflight_test.go
index 5e6f1b3..6404a17 100644
--- a/libgo/go/internal/singleflight/singleflight_test.go
+++ b/libgo/go/internal/singleflight/singleflight_test.go
@@ -28,7 +28,7 @@
 
 func TestDoErr(t *testing.T) {
 	var g Group
-	someErr := errors.New("Some error")
+	someErr := errors.New("some error")
 	v, err, _ := g.Do("key", func() (interface{}, error) {
 		return nil, someErr
 	})
diff --git a/libgo/go/internal/syscall/unix/getrandom_linux_generic.go b/libgo/go/internal/syscall/unix/getrandom_linux_generic.go
index f70ada3..95748d5 100644
--- a/libgo/go/internal/syscall/unix/getrandom_linux_generic.go
+++ b/libgo/go/internal/syscall/unix/getrandom_linux_generic.go
@@ -2,15 +2,15 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build linux,arm64 linux,nios2 linux,riscv64
+// +build linux
+// +build arm64 nios2 riscv64
 
 package unix
 
 // Linux getrandom system call number.
 // See GetRandom in getrandom_linux.go.
 //
-// This file is named "generic" because at a certain point Linux
-// started standardizing on system call numbers across
-// architectures. So far this means only arm64 uses the standard
-// numbers.
+// This file is named "generic" because at a certain point Linux started
+// standardizing on system call numbers across architectures. So far this means
+// only arm64 and riscv64 use the standard numbers.
 const randomTrap uintptr = 278
diff --git a/libgo/go/internal/syscall/windows/mksyscall.go b/libgo/go/internal/syscall/windows/mksyscall.go
index 0bf87dc..95e36f7 100644
--- a/libgo/go/internal/syscall/windows/mksyscall.go
+++ b/libgo/go/internal/syscall/windows/mksyscall.go
@@ -6,4 +6,4 @@
 
 package windows
 
-//go:generate go run $GOROOT/src/syscall/mksyscall_windows.go -output zsyscall_windows.go syscall_windows.go security_windows.go psapi_windows.go symlink_windows.go
+//go:generate go run golang.org/x/sys/windows/mkwinsyscall -output zsyscall_windows.go syscall_windows.go security_windows.go psapi_windows.go symlink_windows.go
diff --git a/libgo/go/internal/syscall/windows/registry/mksyscall.go b/libgo/go/internal/syscall/windows/registry/mksyscall.go
index fa8e27e..cb4906a 100644
--- a/libgo/go/internal/syscall/windows/registry/mksyscall.go
+++ b/libgo/go/internal/syscall/windows/registry/mksyscall.go
@@ -6,4 +6,4 @@
 
 package registry
 
-//go:generate go run $GOROOT/src/syscall/mksyscall_windows.go -output zsyscall_windows.go syscall.go
+//go:generate go run golang.org/x/sys/windows/mkwinsyscall -output zsyscall_windows.go syscall.go
diff --git a/libgo/go/internal/syscall/windows/registry/registry_test.go b/libgo/go/internal/syscall/windows/registry/registry_test.go
index c77329c..8227232 100644
--- a/libgo/go/internal/syscall/windows/registry/registry_test.go
+++ b/libgo/go/internal/syscall/windows/registry/registry_test.go
@@ -522,86 +522,6 @@
 	deleteValues(t, k)
 }
 
-func walkKey(t *testing.T, k registry.Key, kname string) {
-	names, err := k.ReadValueNames(-1)
-	if err != nil {
-		t.Fatalf("reading value names of %s failed: %v", kname, err)
-	}
-	for _, name := range names {
-		_, valtype, err := k.GetValue(name, nil)
-		if err != nil {
-			t.Fatalf("reading value type of %s of %s failed: %v", name, kname, err)
-		}
-		switch valtype {
-		case registry.NONE:
-		case registry.SZ:
-			_, _, err := k.GetStringValue(name)
-			if err != nil {
-				t.Error(err)
-			}
-		case registry.EXPAND_SZ:
-			s, _, err := k.GetStringValue(name)
-			if err != nil {
-				t.Error(err)
-			}
-			_, err = registry.ExpandString(s)
-			if err != nil {
-				t.Error(err)
-			}
-		case registry.DWORD, registry.QWORD:
-			_, _, err := k.GetIntegerValue(name)
-			if err != nil {
-				t.Error(err)
-			}
-		case registry.BINARY:
-			_, _, err := k.GetBinaryValue(name)
-			if err != nil {
-				t.Error(err)
-			}
-		case registry.MULTI_SZ:
-			_, _, err := k.GetStringsValue(name)
-			if err != nil {
-				t.Error(err)
-			}
-		case registry.FULL_RESOURCE_DESCRIPTOR, registry.RESOURCE_LIST, registry.RESOURCE_REQUIREMENTS_LIST:
-			// TODO: not implemented
-		default:
-			t.Fatalf("value type %d of %s of %s failed: %v", valtype, name, kname, err)
-		}
-	}
-
-	names, err = k.ReadSubKeyNames(-1)
-	if err != nil {
-		t.Fatalf("reading sub-keys of %s failed: %v", kname, err)
-	}
-	for _, name := range names {
-		func() {
-			subk, err := registry.OpenKey(k, name, registry.ENUMERATE_SUB_KEYS|registry.QUERY_VALUE)
-			if err != nil {
-				if err == syscall.ERROR_ACCESS_DENIED {
-					// ignore error, if we are not allowed to access this key
-					return
-				}
-				t.Fatalf("opening sub-keys %s of %s failed: %v", name, kname, err)
-			}
-			defer subk.Close()
-
-			walkKey(t, subk, kname+`\`+name)
-		}()
-	}
-}
-
-func TestWalkFullRegistry(t *testing.T) {
-	if testing.Short() {
-		t.Skip("skipping long running test in short mode")
-	}
-	walkKey(t, registry.CLASSES_ROOT, "CLASSES_ROOT")
-	walkKey(t, registry.CURRENT_USER, "CURRENT_USER")
-	walkKey(t, registry.LOCAL_MACHINE, "LOCAL_MACHINE")
-	walkKey(t, registry.USERS, "USERS")
-	walkKey(t, registry.CURRENT_CONFIG, "CURRENT_CONFIG")
-}
-
 func TestExpandString(t *testing.T) {
 	got, err := registry.ExpandString("%PATH%")
 	if err != nil {
diff --git a/libgo/go/internal/syscall/windows/registry/value.go b/libgo/go/internal/syscall/windows/registry/value.go
index 71d4e15..bf8ab00 100644
--- a/libgo/go/internal/syscall/windows/registry/value.go
+++ b/libgo/go/internal/syscall/windows/registry/value.go
@@ -108,7 +108,7 @@
 	if len(data) == 0 {
 		return "", typ, nil
 	}
-	u := (*[1 << 29]uint16)(unsafe.Pointer(&data[0]))[:]
+	u := (*[1 << 29]uint16)(unsafe.Pointer(&data[0]))[: len(data)/2 : len(data)/2]
 	return syscall.UTF16ToString(u), typ, nil
 }
 
@@ -185,8 +185,7 @@
 			return "", err
 		}
 		if n <= uint32(len(r)) {
-			u := (*[1 << 29]uint16)(unsafe.Pointer(&r[0]))[:]
-			return syscall.UTF16ToString(u), nil
+			return syscall.UTF16ToString(r[:n]), nil
 		}
 		r = make([]uint16, n)
 	}
@@ -208,7 +207,7 @@
 	if len(data) == 0 {
 		return nil, typ, nil
 	}
-	p := (*[1 << 29]uint16)(unsafe.Pointer(&data[0]))[:len(data)/2]
+	p := (*[1 << 29]uint16)(unsafe.Pointer(&data[0]))[: len(data)/2 : len(data)/2]
 	if len(p) == 0 {
 		return nil, typ, nil
 	}
@@ -296,7 +295,7 @@
 	if err != nil {
 		return err
 	}
-	buf := (*[1 << 29]byte)(unsafe.Pointer(&v[0]))[:len(v)*2]
+	buf := (*[1 << 29]byte)(unsafe.Pointer(&v[0]))[: len(v)*2 : len(v)*2]
 	return k.setValue(name, valtype, buf)
 }
 
@@ -326,7 +325,7 @@
 		ss += s + "\x00"
 	}
 	v := utf16.Encode([]rune(ss + "\x00"))
-	buf := (*[1 << 29]byte)(unsafe.Pointer(&v[0]))[:len(v)*2]
+	buf := (*[1 << 29]byte)(unsafe.Pointer(&v[0]))[: len(v)*2 : len(v)*2]
 	return k.setValue(name, MULTI_SZ, buf)
 }
 
diff --git a/libgo/go/internal/syscall/windows/reparse_windows.go b/libgo/go/internal/syscall/windows/reparse_windows.go
index 610b733..6e11139 100644
--- a/libgo/go/internal/syscall/windows/reparse_windows.go
+++ b/libgo/go/internal/syscall/windows/reparse_windows.go
@@ -60,8 +60,9 @@
 
 // Path returns path stored in rb.
 func (rb *SymbolicLinkReparseBuffer) Path() string {
-	p := (*[0xffff]uint16)(unsafe.Pointer(&rb.PathBuffer[0]))
-	return syscall.UTF16ToString(p[rb.SubstituteNameOffset/2 : (rb.SubstituteNameOffset+rb.SubstituteNameLength)/2])
+	n1 := rb.SubstituteNameOffset / 2
+	n2 := (rb.SubstituteNameOffset + rb.SubstituteNameLength) / 2
+	return syscall.UTF16ToString((*[0xffff]uint16)(unsafe.Pointer(&rb.PathBuffer[0]))[n1:n2:n2])
 }
 
 type MountPointReparseBuffer struct {
@@ -83,6 +84,7 @@
 
 // Path returns path stored in rb.
 func (rb *MountPointReparseBuffer) Path() string {
-	p := (*[0xffff]uint16)(unsafe.Pointer(&rb.PathBuffer[0]))
-	return syscall.UTF16ToString(p[rb.SubstituteNameOffset/2 : (rb.SubstituteNameOffset+rb.SubstituteNameLength)/2])
+	n1 := rb.SubstituteNameOffset / 2
+	n2 := (rb.SubstituteNameOffset + rb.SubstituteNameLength) / 2
+	return syscall.UTF16ToString((*[0xffff]uint16)(unsafe.Pointer(&rb.PathBuffer[0]))[n1:n2:n2])
 }
diff --git a/libgo/go/internal/syscall/windows/syscall_windows.go b/libgo/go/internal/syscall/windows/syscall_windows.go
index 099e91e..dc64111 100644
--- a/libgo/go/internal/syscall/windows/syscall_windows.go
+++ b/libgo/go/internal/syscall/windows/syscall_windows.go
@@ -7,9 +7,29 @@
 import (
 	"sync"
 	"syscall"
+	"unicode/utf16"
 	"unsafe"
 )
 
+// UTF16PtrToString is like UTF16ToString, but takes *uint16
+// as a parameter instead of []uint16.
+// max is how many times p can be advanced looking for the null terminator.
+// If max is hit, the string is truncated at that point.
+func UTF16PtrToString(p *uint16, max int) string {
+	if p == nil {
+		return ""
+	}
+	// Find NUL terminator.
+	end := unsafe.Pointer(p)
+	n := 0
+	for *(*uint16)(end) != 0 && n < max {
+		end = unsafe.Pointer(uintptr(end) + unsafe.Sizeof(*p))
+		n++
+	}
+	s := (*[(1 << 30) - 1]uint16)(unsafe.Pointer(p))[:n:n]
+	return string(utf16.Decode(s))
+}
+
 const (
 	ERROR_SHARING_VIOLATION      syscall.Errno = 32
 	ERROR_LOCK_VIOLATION         syscall.Errno = 33
diff --git a/libgo/go/internal/testenv/testenv.go b/libgo/go/internal/testenv/testenv.go
index 3460054..c2e9d98 100644
--- a/libgo/go/internal/testenv/testenv.go
+++ b/libgo/go/internal/testenv/testenv.go
@@ -50,7 +50,7 @@
 		return false
 	}
 	switch runtime.GOOS {
-	case "android", "nacl", "js":
+	case "android", "js":
 		return false
 	case "darwin":
 		if strings.HasPrefix(runtime.GOARCH, "arm") {
@@ -136,7 +136,7 @@
 // using os.StartProcess or (more commonly) exec.Command.
 func HasExec() bool {
 	switch runtime.GOOS {
-	case "nacl", "js":
+	case "js":
 		return false
 	case "darwin":
 		if strings.HasPrefix(runtime.GOARCH, "arm") {
@@ -149,8 +149,6 @@
 // HasSrc reports whether the entire source tree is available under GOROOT.
 func HasSrc() bool {
 	switch runtime.GOOS {
-	case "nacl":
-		return false
 	case "darwin":
 		if strings.HasPrefix(runtime.GOARCH, "arm") {
 			return false
@@ -192,14 +190,14 @@
 // HasExternalNetwork reports whether the current system can use
 // external (non-localhost) networks.
 func HasExternalNetwork() bool {
-	return !testing.Short() && runtime.GOOS != "nacl" && runtime.GOOS != "js"
+	return !testing.Short() && runtime.GOOS != "js"
 }
 
 // MustHaveExternalNetwork checks that the current system can use
 // external (non-localhost) networks.
 // If not, MustHaveExternalNetwork calls t.Skip with an explanation.
 func MustHaveExternalNetwork(t testing.TB) {
-	if runtime.GOOS == "nacl" || runtime.GOOS == "js" {
+	if runtime.GOOS == "js" {
 		t.Skipf("skipping test: no external network on %s", runtime.GOOS)
 	}
 	if testing.Short() {
diff --git a/libgo/go/internal/testenv/testenv_notwin.go b/libgo/go/internal/testenv/testenv_notwin.go
index d8ce6cd..ccb5d55 100644
--- a/libgo/go/internal/testenv/testenv_notwin.go
+++ b/libgo/go/internal/testenv/testenv_notwin.go
@@ -12,7 +12,7 @@
 
 func hasSymlink() (ok bool, reason string) {
 	switch runtime.GOOS {
-	case "android", "nacl", "plan9":
+	case "android", "plan9":
 		return false, ""
 	}
 
diff --git a/libgo/go/io/io.go b/libgo/go/io/io.go
index 2010770..9cc3086 100644
--- a/libgo/go/io/io.go
+++ b/libgo/go/io/io.go
@@ -368,6 +368,9 @@
 // provided buffer (if one is required) rather than allocating a
 // temporary one. If buf is nil, one is allocated; otherwise if it has
 // zero length, CopyBuffer panics.
+//
+// If either src implements WriterTo or dst implements ReaderFrom,
+// buf will not be used to perform the copy.
 func CopyBuffer(dst Writer, src Reader, buf []byte) (written int64, err error) {
 	if buf != nil && len(buf) == 0 {
 		panic("empty buffer in io.CopyBuffer")
diff --git a/libgo/go/io/io_test.go b/libgo/go/io/io_test.go
index 0e4ce61..ca90403 100644
--- a/libgo/go/io/io_test.go
+++ b/libgo/go/io/io_test.go
@@ -13,7 +13,7 @@
 	"testing"
 )
 
-// An version of bytes.Buffer without ReadFrom and WriteTo
+// A version of bytes.Buffer without ReadFrom and WriteTo
 type Buffer struct {
 	bytes.Buffer
 	ReaderFrom // conflicts with and hides bytes.Buffer's ReaderFrom.
diff --git a/libgo/go/io/ioutil/example_test.go b/libgo/go/io/ioutil/example_test.go
index a7d340b..bc2b6fb 100644
--- a/libgo/go/io/ioutil/example_test.go
+++ b/libgo/go/io/ioutil/example_test.go
@@ -53,6 +53,29 @@
 	}
 }
 
+func ExampleTempDir_suffix() {
+	parentDir := os.TempDir()
+	logsDir, err := ioutil.TempDir(parentDir, "*-logs")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer os.RemoveAll(logsDir) // clean up
+
+	// Logs can be cleaned out earlier if needed by searching
+	// for all directories whose suffix ends in *-logs.
+	globPattern := filepath.Join(parentDir, "*-logs")
+	matches, err := filepath.Glob(globPattern)
+	if err != nil {
+		log.Fatalf("Failed to match %q: %v", globPattern, err)
+	}
+
+	for _, match := range matches {
+		if err := os.RemoveAll(match); err != nil {
+			log.Printf("Failed to remove %q: %v", match, err)
+		}
+	}
+}
+
 func ExampleTempFile() {
 	content := []byte("temporary file's content")
 	tmpfile, err := ioutil.TempFile("", "example")
diff --git a/libgo/go/io/ioutil/ioutil.go b/libgo/go/io/ioutil/ioutil.go
index 674b270..b1cb841 100644
--- a/libgo/go/io/ioutil/ioutil.go
+++ b/libgo/go/io/ioutil/ioutil.go
@@ -74,17 +74,14 @@
 }
 
 // WriteFile writes data to a file named by filename.
-// If the file does not exist, WriteFile creates it with permissions perm;
-// otherwise WriteFile truncates it before writing.
+// If the file does not exist, WriteFile creates it with permissions perm
+// (before umask); otherwise WriteFile truncates it before writing.
 func WriteFile(filename string, data []byte, perm os.FileMode) error {
 	f, err := os.OpenFile(filename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, perm)
 	if err != nil {
 		return err
 	}
-	n, err := f.Write(data)
-	if err == nil && n < len(data) {
-		err = io.ErrShortWrite
-	}
+	_, err = f.Write(data)
 	if err1 := f.Close(); err == nil {
 		err = err1
 	}
diff --git a/libgo/go/io/ioutil/ioutil_test.go b/libgo/go/io/ioutil/ioutil_test.go
index 81fc602..1fc4c8b 100644
--- a/libgo/go/io/ioutil/ioutil_test.go
+++ b/libgo/go/io/ioutil/ioutil_test.go
@@ -5,7 +5,9 @@
 package ioutil
 
 import (
+	"bytes"
 	"os"
+	"path/filepath"
 	"testing"
 )
 
@@ -63,6 +65,38 @@
 	os.Remove(filename) // ignore error
 }
 
+func TestReadOnlyWriteFile(t *testing.T) {
+	if os.Getuid() == 0 {
+		t.Skipf("Root can write to read-only files anyway, so skip the read-only test.")
+	}
+
+	// We don't want to use TempFile directly, since that opens a file for us as 0600.
+	tempDir, err := TempDir("", t.Name())
+	if err != nil {
+		t.Fatalf("TempDir %s: %v", t.Name(), err)
+	}
+	defer os.RemoveAll(tempDir)
+	filename := filepath.Join(tempDir, "blurp.txt")
+
+	shmorp := []byte("shmorp")
+	florp := []byte("florp")
+	err = WriteFile(filename, shmorp, 0444)
+	if err != nil {
+		t.Fatalf("WriteFile %s: %v", filename, err)
+	}
+	err = WriteFile(filename, florp, 0444)
+	if err == nil {
+		t.Fatalf("Expected an error when writing to read-only file %s", filename)
+	}
+	got, err := ReadFile(filename)
+	if err != nil {
+		t.Fatalf("ReadFile %s: %v", filename, err)
+	}
+	if !bytes.Equal(got, shmorp) {
+		t.Fatalf("want %s, got %s", shmorp, got)
+	}
+}
+
 func TestReadDir(t *testing.T) {
 	dirname := "rumpelstilzchen"
 	_, err := ReadDir(dirname)
diff --git a/libgo/go/io/ioutil/tempfile.go b/libgo/go/io/ioutil/tempfile.go
index ba8783b..3aa23c5 100644
--- a/libgo/go/io/ioutil/tempfile.go
+++ b/libgo/go/io/ioutil/tempfile.go
@@ -52,12 +52,7 @@
 		dir = os.TempDir()
 	}
 
-	var prefix, suffix string
-	if pos := strings.LastIndex(pattern, "*"); pos != -1 {
-		prefix, suffix = pattern[:pos], pattern[pos+1:]
-	} else {
-		prefix = pattern
-	}
+	prefix, suffix := prefixAndSuffix(pattern)
 
 	nconflict := 0
 	for i := 0; i < 10000; i++ {
@@ -76,21 +71,36 @@
 	return
 }
 
-// TempDir creates a new temporary directory in the directory dir
-// with a name beginning with prefix and returns the path of the
-// new directory. If dir is the empty string, TempDir uses the
+// prefixAndSuffix splits pattern by the last wildcard "*", if applicable,
+// returning prefix as the part before "*" and suffix as the part after "*".
+func prefixAndSuffix(pattern string) (prefix, suffix string) {
+	if pos := strings.LastIndex(pattern, "*"); pos != -1 {
+		prefix, suffix = pattern[:pos], pattern[pos+1:]
+	} else {
+		prefix = pattern
+	}
+	return
+}
+
+// TempDir creates a new temporary directory in the directory dir.
+// The directory name is generated by taking pattern and applying a
+// random string to the end. If pattern includes a "*", the random string
+// replaces the last "*". TempDir returns the name of the new directory.
+// If dir is the empty string, TempDir uses the
 // default directory for temporary files (see os.TempDir).
 // Multiple programs calling TempDir simultaneously
 // will not choose the same directory. It is the caller's responsibility
 // to remove the directory when no longer needed.
-func TempDir(dir, prefix string) (name string, err error) {
+func TempDir(dir, pattern string) (name string, err error) {
 	if dir == "" {
 		dir = os.TempDir()
 	}
 
+	prefix, suffix := prefixAndSuffix(pattern)
+
 	nconflict := 0
 	for i := 0; i < 10000; i++ {
-		try := filepath.Join(dir, prefix+nextRandom())
+		try := filepath.Join(dir, prefix+nextRandom()+suffix)
 		err = os.Mkdir(try, 0700)
 		if os.IsExist(err) {
 			if nconflict++; nconflict > 10 {
diff --git a/libgo/go/io/ioutil/tempfile_test.go b/libgo/go/io/ioutil/tempfile_test.go
index 0758890..698ebab 100644
--- a/libgo/go/io/ioutil/tempfile_test.go
+++ b/libgo/go/io/ioutil/tempfile_test.go
@@ -54,18 +54,47 @@
 		t.Errorf("TempDir(`/_not_exists_`, `foo`) = %v, %v", name, err)
 	}
 
-	dir := os.TempDir()
-	name, err = TempDir(dir, "ioutil_test")
-	if name == "" || err != nil {
-		t.Errorf("TempDir(dir, `ioutil_test`) = %v, %v", name, err)
+	tests := []struct {
+		pattern                string
+		wantPrefix, wantSuffix string
+	}{
+		{"ioutil_test", "ioutil_test", ""},
+		{"ioutil_test*", "ioutil_test", ""},
+		{"ioutil_test*xyz", "ioutil_test", "xyz"},
 	}
-	if name != "" {
-		os.Remove(name)
-		re := regexp.MustCompile("^" + regexp.QuoteMeta(filepath.Join(dir, "ioutil_test")) + "[0-9]+$")
+
+	dir := os.TempDir()
+
+	runTestTempDir := func(t *testing.T, pattern, wantRePat string) {
+		name, err := TempDir(dir, pattern)
+		if name == "" || err != nil {
+			t.Fatalf("TempDir(dir, `ioutil_test`) = %v, %v", name, err)
+		}
+		defer os.Remove(name)
+
+		re := regexp.MustCompile(wantRePat)
 		if !re.MatchString(name) {
-			t.Errorf("TempDir(`"+dir+"`, `ioutil_test`) created bad name %s", name)
+			t.Errorf("TempDir(%q, %q) created bad name\n\t%q\ndid not match pattern\n\t%q", dir, pattern, name, wantRePat)
 		}
 	}
+
+	for _, tt := range tests {
+		t.Run(tt.pattern, func(t *testing.T) {
+			wantRePat := "^" + regexp.QuoteMeta(filepath.Join(dir, tt.wantPrefix)) + "[0-9]+" + regexp.QuoteMeta(tt.wantSuffix) + "$"
+			runTestTempDir(t, tt.pattern, wantRePat)
+		})
+	}
+
+	// Separately testing "*xyz" (which has no prefix). That is when constructing the
+	// pattern to assert on, as in the previous loop, using filepath.Join for an empty
+	// prefix filepath.Join(dir, ""), produces the pattern:
+	//     ^<DIR>[0-9]+xyz$
+	// yet we just want to match
+	//     "^<DIR>/[0-9]+xyz"
+	t.Run("*xyz", func(t *testing.T) {
+		wantRePat := "^" + regexp.QuoteMeta(filepath.Join(dir)) + regexp.QuoteMeta(string(filepath.Separator)) + "[0-9]+xyz$"
+		runTestTempDir(t, "*xyz", wantRePat)
+	})
 }
 
 // test that we return a nice error message if the dir argument to TempDir doesn't
diff --git a/libgo/go/io/multi_test.go b/libgo/go/io/multi_test.go
index 9aad954..bc6b0ab 100644
--- a/libgo/go/io/multi_test.go
+++ b/libgo/go/io/multi_test.go
@@ -287,7 +287,7 @@
 	}
 }
 
-// Test that a reader returning (n, EOF) at the end of an MultiReader
+// Test that a reader returning (n, EOF) at the end of a MultiReader
 // chain continues to return EOF on its final read, rather than
 // yielding a (0, EOF).
 func TestMultiReaderFinalEOF(t *testing.T) {
diff --git a/libgo/go/io/pipe.go b/libgo/go/io/pipe.go
index 4efaf2f..b5343bb 100644
--- a/libgo/go/io/pipe.go
+++ b/libgo/go/io/pipe.go
@@ -10,19 +10,26 @@
 import (
 	"errors"
 	"sync"
-	"sync/atomic"
 )
 
-// atomicError is a type-safe atomic value for errors.
-// We use a struct{ error } to ensure consistent use of a concrete type.
-type atomicError struct{ v atomic.Value }
-
-func (a *atomicError) Store(err error) {
-	a.v.Store(struct{ error }{err})
+// onceError is an object that will only store an error once.
+type onceError struct {
+	sync.Mutex // guards following
+	err        error
 }
-func (a *atomicError) Load() error {
-	err, _ := a.v.Load().(struct{ error })
-	return err.error
+
+func (a *onceError) Store(err error) {
+	a.Lock()
+	defer a.Unlock()
+	if a.err != nil {
+		return
+	}
+	a.err = err
+}
+func (a *onceError) Load() error {
+	a.Lock()
+	defer a.Unlock()
+	return a.err
 }
 
 // ErrClosedPipe is the error used for read or write operations on a closed pipe.
@@ -36,8 +43,8 @@
 
 	once sync.Once // Protects closing done
 	done chan struct{}
-	rerr atomicError
-	werr atomicError
+	rerr onceError
+	werr onceError
 }
 
 func (p *pipe) Read(b []byte) (n int, err error) {
@@ -135,6 +142,9 @@
 
 // CloseWithError closes the reader; subsequent writes
 // to the write half of the pipe will return the error err.
+//
+// CloseWithError never overwrites the previous error if it exists
+// and always returns nil.
 func (r *PipeReader) CloseWithError(err error) error {
 	return r.p.CloseRead(err)
 }
@@ -163,7 +173,8 @@
 // read half of the pipe will return no bytes and the error err,
 // or EOF if err is nil.
 //
-// CloseWithError always returns nil.
+// CloseWithError never overwrites the previous error if it exists
+// and always returns nil.
 func (w *PipeWriter) CloseWithError(err error) error {
 	return w.p.CloseWrite(err)
 }
diff --git a/libgo/go/io/pipe_test.go b/libgo/go/io/pipe_test.go
index f18b1c4..8973360 100644
--- a/libgo/go/io/pipe_test.go
+++ b/libgo/go/io/pipe_test.go
@@ -326,8 +326,8 @@
 		t.Errorf("Write error: got %T, want testError1", err)
 	}
 	r.CloseWithError(testError2{})
-	if _, err := w.Write(nil); err != (testError2{}) {
-		t.Errorf("Write error: got %T, want testError2", err)
+	if _, err := w.Write(nil); err != (testError1{}) {
+		t.Errorf("Write error: got %T, want testError1", err)
 	}
 
 	r, w = Pipe()
@@ -336,8 +336,8 @@
 		t.Errorf("Read error: got %T, want testError1", err)
 	}
 	w.CloseWithError(testError2{})
-	if _, err := r.Read(nil); err != (testError2{}) {
-		t.Errorf("Read error: got %T, want testError2", err)
+	if _, err := r.Read(nil); err != (testError1{}) {
+		t.Errorf("Read error: got %T, want testError1", err)
 	}
 }
 
diff --git a/libgo/go/log/log.go b/libgo/go/log/log.go
index 12a9e7b..216cfe0 100644
--- a/libgo/go/log/log.go
+++ b/libgo/go/log/log.go
@@ -25,8 +25,9 @@
 
 // These flags define which text to prefix to each log entry generated by the Logger.
 // Bits are or'ed together to control what's printed.
-// There is no control over the order they appear (the order listed
-// here) or the format they present (as described in the comments).
+// With the exception of the Lmsgprefix flag, there is no
+// control over the order they appear (the order listed here)
+// or the format they present (as described in the comments).
 // The prefix is followed by a colon only when Llongfile or Lshortfile
 // is specified.
 // For example, flags Ldate | Ltime (or LstdFlags) produce,
@@ -40,6 +41,7 @@
 	Llongfile                     // full file name and line number: /a/b/c/d.go:23
 	Lshortfile                    // final file name element and line number: d.go:23. overrides Llongfile
 	LUTC                          // if Ldate or Ltime is set, use UTC rather than the local time zone
+	Lmsgprefix                    // move the "prefix" from the beginning of the line to before the message
 	LstdFlags     = Ldate | Ltime // initial values for the standard logger
 )
 
@@ -49,7 +51,7 @@
 // multiple goroutines; it guarantees to serialize access to the Writer.
 type Logger struct {
 	mu     sync.Mutex // ensures atomic writes; protects the following fields
-	prefix string     // prefix to write at beginning of each line
+	prefix string     // prefix on each line to identify the logger (but see Lmsgprefix)
 	flag   int        // properties
 	out    io.Writer  // destination for output
 	buf    []byte     // for accumulating text to write
@@ -57,7 +59,8 @@
 
 // New creates a new Logger. The out variable sets the
 // destination to which log data will be written.
-// The prefix appears at the beginning of each generated log line.
+// The prefix appears at the beginning of each generated log line, or
+// after the log header if the Lmsgprefix flag is provided.
 // The flag argument defines the logging properties.
 func New(out io.Writer, prefix string, flag int) *Logger {
 	return &Logger{out: out, prefix: prefix, flag: flag}
@@ -90,11 +93,14 @@
 }
 
 // formatHeader writes log header to buf in following order:
-//   * l.prefix (if it's not blank),
+//   * l.prefix (if it's not blank and Lmsgprefix is unset),
 //   * date and/or time (if corresponding flags are provided),
-//   * file and line number (if corresponding flags are provided).
+//   * file and line number (if corresponding flags are provided),
+//   * l.prefix (if it's not blank and Lmsgprefix is set).
 func (l *Logger) formatHeader(buf *[]byte, t time.Time, file string, line int) {
-	*buf = append(*buf, l.prefix...)
+	if l.flag&Lmsgprefix == 0 {
+		*buf = append(*buf, l.prefix...)
+	}
 	if l.flag&(Ldate|Ltime|Lmicroseconds) != 0 {
 		if l.flag&LUTC != 0 {
 			t = t.UTC()
@@ -138,6 +144,9 @@
 		itoa(buf, line, -1)
 		*buf = append(*buf, ": "...)
 	}
+	if l.flag&Lmsgprefix != 0 {
+		*buf = append(*buf, l.prefix...)
+	}
 }
 
 // Output writes the output for a logging event. The string s contains
@@ -227,6 +236,7 @@
 }
 
 // Flags returns the output flags for the logger.
+// The flag bits are Ldate, Ltime, and so on.
 func (l *Logger) Flags() int {
 	l.mu.Lock()
 	defer l.mu.Unlock()
@@ -234,6 +244,7 @@
 }
 
 // SetFlags sets the output flags for the logger.
+// The flag bits are Ldate, Ltime, and so on.
 func (l *Logger) SetFlags(flag int) {
 	l.mu.Lock()
 	defer l.mu.Unlock()
@@ -269,11 +280,13 @@
 }
 
 // Flags returns the output flags for the standard logger.
+// The flag bits are Ldate, Ltime, and so on.
 func Flags() int {
 	return std.Flags()
 }
 
 // SetFlags sets the output flags for the standard logger.
+// The flag bits are Ldate, Ltime, and so on.
 func SetFlags(flag int) {
 	std.SetFlags(flag)
 }
diff --git a/libgo/go/log/log_test.go b/libgo/go/log/log_test.go
index b792518..cdccbc5 100644
--- a/libgo/go/log/log_test.go
+++ b/libgo/go/log/log_test.go
@@ -20,7 +20,7 @@
 	Rdate         = `[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9]`
 	Rtime         = `[0-9][0-9]:[0-9][0-9]:[0-9][0-9]`
 	Rmicroseconds = `\.[0-9][0-9][0-9][0-9][0-9][0-9]`
-	Rline         = `(57|59):` // must update if the calls to l.Printf / l.Print below move
+	Rline         = `(60|62):` // must update if the calls to l.Printf / l.Print below move
 	Rlongfile     = `.*/[A-Za-z0-9_\-]+\.go:` + Rline
 	Rshortfile    = `[A-Za-z0-9_\-]+\.go:` + Rline
 )
@@ -37,6 +37,7 @@
 	{0, "XXX", "XXX"},
 	{Ldate, "", Rdate + " "},
 	{Ltime, "", Rtime + " "},
+	{Ltime | Lmsgprefix, "XXX", Rtime + " XXX"},
 	{Ltime | Lmicroseconds, "", Rtime + Rmicroseconds + " "},
 	{Lmicroseconds, "", Rtime + Rmicroseconds + " "}, // microsec implies time
 	{Llongfile, "", Rlongfile + " "},
@@ -45,6 +46,8 @@
 	// everything at once:
 	{Ldate | Ltime | Lmicroseconds | Llongfile, "XXX", "XXX" + Rdate + " " + Rtime + Rmicroseconds + " " + Rlongfile + " "},
 	{Ldate | Ltime | Lmicroseconds | Lshortfile, "XXX", "XXX" + Rdate + " " + Rtime + Rmicroseconds + " " + Rshortfile + " "},
+	{Ldate | Ltime | Lmicroseconds | Llongfile | Lmsgprefix, "XXX", Rdate + " " + Rtime + Rmicroseconds + " " + Rlongfile + " XXX"},
+	{Ldate | Ltime | Lmicroseconds | Lshortfile | Lmsgprefix, "XXX", Rdate + " " + Rtime + Rmicroseconds + " " + Rshortfile + " XXX"},
 }
 
 // Test using Println("hello", 23, "world") or using Printf("hello %d world", 23)
diff --git a/libgo/go/log/syslog/doc.go b/libgo/go/log/syslog/doc.go
index 5458523..bd12bea 100644
--- a/libgo/go/log/syslog/doc.go
+++ b/libgo/go/log/syslog/doc.go
@@ -22,5 +22,3 @@
 // see https://golang.org/issue/1108.
 
 // BUG(akumar): This package is not implemented on Plan 9.
-
-// BUG(minux): This package is not implemented on NaCl (Native Client).
diff --git a/libgo/go/log/syslog/example_test.go b/libgo/go/log/syslog/example_test.go
index 3d5b76d..4288d37 100644
--- a/libgo/go/log/syslog/example_test.go
+++ b/libgo/go/log/syslog/example_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !windows,!nacl,!plan9
+// +build !windows,!plan9
 
 package syslog_test
 
diff --git a/libgo/go/log/syslog/syslog.go b/libgo/go/log/syslog/syslog.go
index dfd0028..82dd4e7 100644
--- a/libgo/go/log/syslog/syslog.go
+++ b/libgo/go/log/syslog/syslog.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !windows,!nacl,!plan9
+// +build !windows,!plan9
 
 package syslog
 
diff --git a/libgo/go/log/syslog/syslog_test.go b/libgo/go/log/syslog/syslog_test.go
index 447654a..8df8ebb 100644
--- a/libgo/go/log/syslog/syslog_test.go
+++ b/libgo/go/log/syslog/syslog_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !windows,!nacl,!plan9,!js
+// +build !windows,!plan9,!js
 
 package syslog
 
diff --git a/libgo/go/log/syslog/syslog_unix.go b/libgo/go/log/syslog/syslog_unix.go
index 53cbf50..940e92e 100644
--- a/libgo/go/log/syslog/syslog_unix.go
+++ b/libgo/go/log/syslog/syslog_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !windows,!nacl,!plan9,!solaris,!irix
+// +build !windows,!plan9,!solaris,!irix
 
 package syslog
 
diff --git a/libgo/go/math/all_test.go b/libgo/go/math/all_test.go
index 208c823..1ac9d71 100644
--- a/libgo/go/math/all_test.go
+++ b/libgo/go/math/all_test.go
@@ -2005,6 +2005,64 @@
 	1023,
 }
 
+// Test cases were generated with Berkeley TestFloat-3e/testfloat_gen.
+// http://www.jhauser.us/arithmetic/TestFloat.html.
+// The default rounding mode is selected (nearest/even), and exception flags are ignored.
+var fmaC = []struct{ x, y, z, want float64 }{
+	// Large exponent spread
+	{-3.999999999999087, -1.1123914289620494e-16, -7.999877929687506, -7.999877929687505},
+	{-262112.0000004768, -0.06251525855623184, 1.1102230248837136e-16, 16385.99945072085},
+	{-6.462348523533467e-27, -2.3763644720331857e-211, 4.000000000931324, 4.000000000931324},
+
+	// Effective addition
+	{-2.0000000037252907, 6.7904383376e-313, -3.3951933161e-313, -1.697607001654e-312},
+	{-0.12499999999999999, 512.007568359375, -1.4193627164960366e-16, -64.00094604492188},
+	{-2.7550648847397148e-39, -3.4028301595800694e+38, 0.9960937495343386, 1.9335955376735676},
+	{5.723369164769208e+24, 3.8149300927159385e-06, 1.84489958778182e+19, 4.028324913621874e+19},
+	{-0.4843749999990904, -3.6893487872543293e+19, 9.223653786709391e+18, 2.7093936974938993e+19},
+	{-3.8146972665201165e-06, 4.2949672959999385e+09, -2.2204460489938386e-16, -16384.000003844263},
+	{6.98156394130982e-309, -1.1072962560000002e+09, -4.4414561548793455e-308, -7.73065965765153e-300},
+
+	// Effective subtraction
+	{5e-324, 4.5, -2e-323, 0},
+	{5e-324, 7, -3.5e-323, 0},
+	{5e-324, 0.5000000000000001, -5e-324, Copysign(0, -1)},
+	{-2.1240680525e-314, -1.233647078189316e+308, -0.25781249999954525, -0.25780987964919844},
+	{8.579992955364441e-308, 0.6037391876780558, -4.4501307410480706e-308, 7.29947236107098e-309},
+	{-4.450143471986689e-308, -0.9960937499927239, -4.450419332475649e-308, -1.7659233458788e-310},
+	{1.4932076393918112, -2.2248022430460833e-308, 4.449875571054211e-308, 1.127783865601762e-308},
+
+	// Overflow
+	{-2.288020632214759e+38, -8.98846570988901e+307, 1.7696041796300924e+308, Inf(0)},
+	{1.4888652783208255e+308, -9.007199254742012e+15, -6.807282911929205e+38, Inf(-1)},
+	{9.142703268902826e+192, -1.3504889569802838e+296, -1.9082200803806996e-89, Inf(-1)},
+
+	// Finite x and y, but non-finite z.
+	{31.99218749627471, -1.7976930544991702e+308, Inf(0), Inf(0)},
+	{-1.7976931281784667e+308, -2.0009765625002265, Inf(-1), Inf(-1)},
+
+	// Special
+	{0, 0, 0, 0},
+	{-1.1754226043408471e-38, NaN(), Inf(0), NaN()},
+	{0, 0, 2.22507385643494e-308, 2.22507385643494e-308},
+	{-8.65697792e+09, NaN(), -7.516192799999999e+09, NaN()},
+	{-0.00012207403779029757, 3.221225471996093e+09, NaN(), NaN()},
+	{Inf(-1), 0.1252441407414153, -1.387184532981584e-76, Inf(-1)},
+	{Inf(0), 1.525878907671432e-05, -9.214364835452549e+18, Inf(0)},
+
+	// Random
+	{0.1777916152213626, -32.000015266239636, -2.2204459148334633e-16, -5.689334401293007},
+	{-2.0816681711722314e-16, -0.4997558592585846, -0.9465627129124969, -0.9465627129124968},
+	{-1.9999997615814211, 1.8518819259933516e+19, 16.874999999999996, -3.703763410463646e+19},
+	{-0.12499994039717421, 32767.99999976135, -2.0752587082923246e+19, -2.075258708292325e+19},
+	{7.705600568510257e-34, -1.801432979000528e+16, -0.17224197722973714, -0.17224197722973716},
+	{3.8988133103758913e-308, -0.9848632812499999, 3.893879244098556e-308, 5.40811742605814e-310},
+	{-0.012651981190687427, 6.911985574912436e+38, 6.669240527007144e+18, -8.745031148409496e+36},
+	{4.612811918325842e+18, 1.4901161193847641e-08, 2.6077032311277997e-08, 6.873625395187494e+10},
+	{-9.094947033611148e-13, 4.450691014249257e-308, 2.086006742350485e-308, 2.086006742346437e-308},
+	{-7.751454006381804e-05, 5.588653777189071e-308, -2.2207280111272877e-308, -2.2211612130544025e-308},
+}
+
 func tolerance(a, b, e float64) bool {
 	// Multiplying by e here can underflow denormal values to zero.
 	// Check a==b so that at least if a and b are small and identical
@@ -2995,6 +3053,21 @@
 	}
 }
 
+var PortableFMA = FMA // hide call from compiler intrinsic; falls back to portable code
+
+func TestFMA(t *testing.T) {
+	for _, c := range fmaC {
+		got := FMA(c.x, c.y, c.z)
+		if !alike(got, c.want) {
+			t.Errorf("FMA(%g,%g,%g) == %g; want %g", c.x, c.y, c.z, got, c.want)
+		}
+		got = PortableFMA(c.x, c.y, c.z)
+		if !alike(got, c.want) {
+			t.Errorf("PortableFMA(%g,%g,%g) == %g; want %g", c.x, c.y, c.z, got, c.want)
+		}
+	}
+}
+
 // Check that math functions of high angle values
 // return accurate results. [Since (vf[i] + large) - large != vf[i],
 // testing for Trig(vf[i] + large) == Trig(vf[i]), where large is
@@ -3725,3 +3798,11 @@
 	}
 	GlobalF = float64(x)
 }
+
+func BenchmarkFMA(b *testing.B) {
+	x := 0.0
+	for i := 0; i < b.N; i++ {
+		x = FMA(E, Pi, x)
+	}
+	GlobalF = x
+}
diff --git a/libgo/go/math/big/floatconv_test.go b/libgo/go/math/big/floatconv_test.go
index c6c6ba6..3aa6834 100644
--- a/libgo/go/math/big/floatconv_test.go
+++ b/libgo/go/math/big/floatconv_test.go
@@ -536,6 +536,10 @@
 		{"-8191.53125", ToNegativeInf, 53, 'x', 4, "-0x1.fff9p+12"},
 		{"8191.53125", ToPositiveInf, 53, 'x', 4, "0x1.fff9p+12"},
 		{"-8191.53125", ToPositiveInf, 53, 'x', 4, "-0x1.fff8p+12"},
+
+		// issue 34343
+		{"0x.8p-2147483648", ToNearestEven, 4, 'p', -1, "0x.8p-2147483648"},
+		{"0x.8p-2147483648", ToNearestEven, 4, 'x', -1, "0x1p-2147483649"},
 	} {
 		f, _, err := ParseFloat(test.x, 0, test.prec, ToNearestEven)
 		if err != nil {
diff --git a/libgo/go/math/big/ftoa.go b/libgo/go/math/big/ftoa.go
index 6cae63e..5506e6e 100644
--- a/libgo/go/math/big/ftoa.go
+++ b/libgo/go/math/big/ftoa.go
@@ -384,7 +384,7 @@
 	case w > n:
 		m = nat(nil).shr(m, w-n)
 	}
-	exp := x.exp - 1
+	exp64 := int64(x.exp) - 1 // avoid wrap-around
 
 	hm := m.utoa(16)
 	if debugFloat && hm[0] != '1' {
@@ -397,7 +397,6 @@
 	}
 
 	buf = append(buf, 'p')
-	exp64 := int64(exp)
 	if exp64 >= 0 {
 		buf = append(buf, '+')
 	} else {
diff --git a/libgo/go/math/big/int.go b/libgo/go/math/big/int.go
index 8e52f0a..bf1fa73 100644
--- a/libgo/go/math/big/int.go
+++ b/libgo/go/math/big/int.go
@@ -323,6 +323,8 @@
 	// (-x) cmp y == y
 	// (-x) cmp (-y) == -(x cmp y)
 	switch {
+	case x == y:
+		// nothing to do
 	case x.neg == y.neg:
 		r = x.abs.cmp(y.abs)
 		if x.neg {
@@ -466,7 +468,7 @@
 // If m == nil or m == 0, z = x**y unless y <= 0 then z = 1. If m > 0, y < 0,
 // and x and n are not relatively prime, z is unchanged and nil is returned.
 //
-// Modular exponentation of inputs of a particular size is not a
+// Modular exponentiation of inputs of a particular size is not a
 // cryptographically constant-time operation.
 func (z *Int) Exp(x, y, m *Int) *Int {
 	// See Knuth, volume 2, section 4.6.3.
@@ -500,18 +502,36 @@
 	return z
 }
 
-// GCD sets z to the greatest common divisor of a and b, which both must
-// be > 0, and returns z.
+// GCD sets z to the greatest common divisor of a and b and returns z.
 // If x or y are not nil, GCD sets their value such that z = a*x + b*y.
-// If either a or b is <= 0, GCD sets z = x = y = 0.
+// Regardless of the signs of a and b, z is always >= 0.
+// If a == b == 0, GCD sets z = x = y = 0.
+// If a == 0 and b != 0, GCD sets z = |b|, x = 0, y = sign(b) * 1.
+// If a != 0 and b == 0, GCD sets z = |a|, x = sign(a) * 1, y = 0.
 func (z *Int) GCD(x, y, a, b *Int) *Int {
-	if a.Sign() <= 0 || b.Sign() <= 0 {
-		z.SetInt64(0)
+	if len(a.abs) == 0 || len(b.abs) == 0 {
+		lenA, lenB, negA, negB := len(a.abs), len(b.abs), a.neg, b.neg
+		if lenA == 0 {
+			z.Set(b)
+		} else {
+			z.Set(a)
+		}
+		z.neg = false
 		if x != nil {
-			x.SetInt64(0)
+			if lenA == 0 {
+				x.SetUint64(0)
+			} else {
+				x.SetUint64(1)
+				x.neg = negA
+			}
 		}
 		if y != nil {
-			y.SetInt64(0)
+			if lenB == 0 {
+				y.SetUint64(0)
+			} else {
+				y.SetUint64(1)
+				y.neg = negB
+			}
 		}
 		return z
 	}
@@ -619,7 +639,7 @@
 }
 
 // lehmerGCD sets z to the greatest common divisor of a and b,
-// which both must be > 0, and returns z.
+// which both must be != 0, and returns z.
 // If x or y are not nil, their values are set such that z = a*x + b*y.
 // See Knuth, The Art of Computer Programming, Vol. 2, Section 4.5.2, Algorithm L.
 // This implementation uses the improved condition by Collins requiring only one
@@ -631,8 +651,8 @@
 func (z *Int) lehmerGCD(x, y, a, b *Int) *Int {
 	var A, B, Ua, Ub *Int
 
-	A = new(Int).Set(a)
-	B = new(Int).Set(b)
+	A = new(Int).Abs(a)
+	B = new(Int).Abs(b)
 
 	extended := x != nil || y != nil
 
@@ -718,7 +738,7 @@
 			A.abs[0] = aWord
 		}
 	}
-
+	negA := a.neg
 	if y != nil {
 		// avoid aliasing b needed in the division below
 		if y == b {
@@ -728,12 +748,18 @@
 		}
 		// y = (z - a*x)/b
 		y.Mul(a, Ua) // y can safely alias a
+		if negA {
+			y.neg = !y.neg
+		}
 		y.Sub(A, y)
 		y.Div(y, B)
 	}
 
 	if x != nil {
 		*x = *Ua
+		if negA {
+			x.neg = !x.neg
+		}
 	}
 
 	*z = *A
diff --git a/libgo/go/math/big/int_test.go b/libgo/go/math/big/int_test.go
index ade973b..e3a1587 100644
--- a/libgo/go/math/big/int_test.go
+++ b/libgo/go/math/big/int_test.go
@@ -757,11 +757,13 @@
 }{
 	// a <= 0 || b <= 0
 	{"0", "0", "0", "0", "0"},
-	{"0", "0", "0", "0", "7"},
-	{"0", "0", "0", "11", "0"},
-	{"0", "0", "0", "-77", "35"},
-	{"0", "0", "0", "64515", "-24310"},
-	{"0", "0", "0", "-64515", "-24310"},
+	{"7", "0", "1", "0", "7"},
+	{"7", "0", "-1", "0", "-7"},
+	{"11", "1", "0", "11", "0"},
+	{"7", "-1", "-2", "-77", "35"},
+	{"935", "-3", "8", "64515", "24310"},
+	{"935", "-3", "-8", "64515", "-24310"},
+	{"935", "3", "-8", "-64515", "-24310"},
 
 	{"1", "-9", "47", "120", "23"},
 	{"7", "1", "-2", "77", "35"},
@@ -1071,6 +1073,20 @@
 	}
 }
 
+func TestIntCmpSelf(t *testing.T) {
+	for _, s := range cmpAbsTests {
+		x, ok := new(Int).SetString(s, 0)
+		if !ok {
+			t.Fatalf("SetString(%s, 0) failed", s)
+		}
+		got := x.Cmp(x)
+		want := 0
+		if got != want {
+			t.Errorf("x = %s: x.Cmp(x): got %d; want %d", x, got, want)
+		}
+	}
+}
+
 var int64Tests = []string{
 	// int64
 	"0",
@@ -1813,8 +1829,11 @@
 }
 
 func BenchmarkDiv(b *testing.B) {
-	min, max, step := 10, 100000, 10
-	for i := min; i <= max; i *= step {
+	sizes := []int{
+		10, 20, 50, 100, 200, 500, 1000,
+		1e4, 1e5, 1e6, 1e7,
+	}
+	for _, i := range sizes {
 		j := 2 * i
 		b.Run(fmt.Sprintf("%d/%d", j, i), func(b *testing.B) {
 			benchmarkDiv(b, j, i)
diff --git a/libgo/go/math/big/nat.go b/libgo/go/math/big/nat.go
index 22d7a6c..1b771ca 100644
--- a/libgo/go/math/big/nat.go
+++ b/libgo/go/math/big/nat.go
@@ -463,7 +463,8 @@
 	// be a larger valid threshold contradicting the assumption about k.
 	//
 	if k < n || m != n {
-		var t nat
+		tp := getNat(3 * k)
+		t := *tp
 
 		// add x0*y1*b
 		x0 := x0.norm()
@@ -484,6 +485,8 @@
 			t = t.mul(xi, y1)
 			addAt(z, t, i+k)
 		}
+
+		putNat(tp)
 	}
 
 	return z.norm()
@@ -495,7 +498,9 @@
 // The (non-normalized) result is placed in z.
 func basicSqr(z, x nat) {
 	n := len(x)
-	t := make(nat, 2*n)            // temporary variable to hold the products
+	tp := getNat(2 * n)
+	t := *tp // temporary variable to hold the products
+	t.clear()
 	z[1], z[0] = mulWW(x[0], x[0]) // the initial square
 	for i := 1; i < n; i++ {
 		d := x[i]
@@ -506,6 +511,7 @@
 	}
 	t[2*n-1] = shlVU(t[1:2*n-1], t[1:2*n-1], 1) // double the j < i products
 	addVV(z, z, t)                              // combine the result
+	putNat(tp)
 }
 
 // karatsubaSqr squares x and leaves the result in z.
@@ -592,7 +598,8 @@
 	z[2*k:].clear()
 
 	if k < n {
-		var t nat
+		tp := getNat(2 * k)
+		t := *tp
 		x0 := x0.norm()
 		x1 := x[k:]
 		t = t.mul(x0, x1)
@@ -600,6 +607,7 @@
 		addAt(z, t, k) // z = 2*x1*x0*b + x0^2
 		t = t.sqr(x1)
 		addAt(z, t, 2*k) // z = x1^2*b^2 + 2*x1*x0*b + x0^2
+		putNat(tp)
 	}
 
 	return z.norm()
@@ -685,7 +693,7 @@
 
 var natPool sync.Pool
 
-// q = (uIn-r)/vIn, with 0 <= r < y
+// q = (uIn-r)/vIn, with 0 <= r < vIn
 // Uses z as storage for q, and u as storage for r if possible.
 // See Knuth, Volume 2, section 4.3.1, Algorithm D.
 // Preconditions:
@@ -713,6 +721,30 @@
 	}
 	q = z.make(m + 1)
 
+	if n < divRecursiveThreshold {
+		q.divBasic(u, v)
+	} else {
+		q.divRecursive(u, v)
+	}
+	putNat(vp)
+
+	q = q.norm()
+	shrVU(u, u, shift)
+	r = u.norm()
+
+	return q, r
+}
+
+// divBasic performs word-by-word division of u by v.
+// The quotient is written in pre-allocated q.
+// The remainder overwrites input u.
+//
+// Precondition:
+// - len(q) >= len(u)-len(v)
+func (q nat) divBasic(u, v nat) {
+	n := len(v)
+	m := len(u) - n
+
 	qhatvp := getNat(n + 1)
 	qhatv := *qhatvp
 
@@ -721,7 +753,11 @@
 	for j := m; j >= 0; j-- {
 		// D3.
 		qhat := Word(_M)
-		if ujn := u[j+n]; ujn != vn1 {
+		var ujn Word
+		if j+n < len(u) {
+			ujn = u[j+n]
+		}
+		if ujn != vn1 {
 			var rhat Word
 			qhat, rhat = divWW(ujn, u[j+n-1], vn1)
 
@@ -744,25 +780,175 @@
 
 		// D4.
 		qhatv[n] = mulAddVWW(qhatv[0:n], v, qhat, 0)
-
-		c := subVV(u[j:j+len(qhatv)], u[j:], qhatv)
+		qhl := len(qhatv)
+		if j+qhl > len(u) && qhatv[n] == 0 {
+			qhl--
+		}
+		c := subVV(u[j:j+qhl], u[j:], qhatv)
 		if c != 0 {
 			c := addVV(u[j:j+n], u[j:], v)
 			u[j+n] += c
 			qhat--
 		}
 
+		if j == m && m == len(q) && qhat == 0 {
+			continue
+		}
 		q[j] = qhat
 	}
 
-	putNat(vp)
 	putNat(qhatvp)
+}
 
-	q = q.norm()
-	shrVU(u, u, shift)
-	r = u.norm()
+const divRecursiveThreshold = 100
 
-	return q, r
+// divRecursive performs word-by-word division of u by v.
+// The quotient is written in pre-allocated z.
+// The remainder overwrites input u.
+//
+// Precondition:
+// - len(z) >= len(u)-len(v)
+//
+// See Burnikel, Ziegler, "Fast Recursive Division", Algorithm 1 and 2.
+func (z nat) divRecursive(u, v nat) {
+	// Recursion depth is less than 2 log2(len(v))
+	// Allocate a slice of temporaries to be reused across recursion.
+	recDepth := 2 * bits.Len(uint(len(v)))
+	// large enough to perform Karatsuba on operands as large as v
+	tmp := getNat(3 * len(v))
+	temps := make([]*nat, recDepth)
+	z.clear()
+	z.divRecursiveStep(u, v, 0, tmp, temps)
+	for _, n := range temps {
+		if n != nil {
+			putNat(n)
+		}
+	}
+	putNat(tmp)
+}
+
+func (z nat) divRecursiveStep(u, v nat, depth int, tmp *nat, temps []*nat) {
+	u = u.norm()
+	v = v.norm()
+
+	if len(u) == 0 {
+		z.clear()
+		return
+	}
+	n := len(v)
+	if n < divRecursiveThreshold {
+		z.divBasic(u, v)
+		return
+	}
+	m := len(u) - n
+	if m < 0 {
+		return
+	}
+
+	// Produce the quotient by blocks of B words.
+	// Division by v (length n) is done using a length n/2 division
+	// and a length n/2 multiplication for each block. The final
+	// complexity is driven by multiplication complexity.
+	B := n / 2
+
+	// Allocate a nat for qhat below.
+	if temps[depth] == nil {
+		temps[depth] = getNat(n)
+	} else {
+		*temps[depth] = temps[depth].make(B + 1)
+	}
+
+	j := m
+	for j > B {
+		// Divide u[j-B:j+n] by vIn. Keep remainder in u
+		// for next block.
+		//
+		// The following property will be used (Lemma 2):
+		// if u = u1 << s + u0
+		//    v = v1 << s + v0
+		// then floor(u1/v1) >= floor(u/v)
+		//
+		// Moreover, the difference is at most 2 if len(v1) >= len(u/v)
+		// We choose s = B-1 since len(v)-B >= B+1 >= len(u/v)
+		s := (B - 1)
+		// Except for the first step, the top bits are always
+		// a division remainder, so the quotient length is <= n.
+		uu := u[j-B:]
+
+		qhat := *temps[depth]
+		qhat.clear()
+		qhat.divRecursiveStep(uu[s:B+n], v[s:], depth+1, tmp, temps)
+		qhat = qhat.norm()
+		// Adjust the quotient:
+		//    u = u_h << s + u_l
+		//    v = v_h << s + v_l
+		//  u_h = q̂ v_h + rh
+		//    u = q̂ (v - v_l) + rh << s + u_l
+		// After the above step, u contains a remainder:
+		//    u = rh << s + u_l
+		// and we need to subtract q̂ v_l
+		//
+		// But it may be a bit too large, in which case q̂ needs to be smaller.
+		qhatv := tmp.make(3 * n)
+		qhatv.clear()
+		qhatv = qhatv.mul(qhat, v[:s])
+		for i := 0; i < 2; i++ {
+			e := qhatv.cmp(uu.norm())
+			if e <= 0 {
+				break
+			}
+			subVW(qhat, qhat, 1)
+			c := subVV(qhatv[:s], qhatv[:s], v[:s])
+			if len(qhatv) > s {
+				subVW(qhatv[s:], qhatv[s:], c)
+			}
+			addAt(uu[s:], v[s:], 0)
+		}
+		if qhatv.cmp(uu.norm()) > 0 {
+			panic("impossible")
+		}
+		c := subVV(uu[:len(qhatv)], uu[:len(qhatv)], qhatv)
+		if c > 0 {
+			subVW(uu[len(qhatv):], uu[len(qhatv):], c)
+		}
+		addAt(z, qhat, j-B)
+		j -= B
+	}
+
+	// Now u < (v<<B), compute lower bits in the same way.
+	// Choose shift = B-1 again.
+	s := B
+	qhat := *temps[depth]
+	qhat.clear()
+	qhat.divRecursiveStep(u[s:].norm(), v[s:], depth+1, tmp, temps)
+	qhat = qhat.norm()
+	qhatv := tmp.make(3 * n)
+	qhatv.clear()
+	qhatv = qhatv.mul(qhat, v[:s])
+	// Set the correct remainder as before.
+	for i := 0; i < 2; i++ {
+		if e := qhatv.cmp(u.norm()); e > 0 {
+			subVW(qhat, qhat, 1)
+			c := subVV(qhatv[:s], qhatv[:s], v[:s])
+			if len(qhatv) > s {
+				subVW(qhatv[s:], qhatv[s:], c)
+			}
+			addAt(u[s:], v[s:], 0)
+		}
+	}
+	if qhatv.cmp(u.norm()) > 0 {
+		panic("impossible")
+	}
+	c := subVV(u[0:len(qhatv)], u[0:len(qhatv)], qhatv)
+	if c > 0 {
+		c = subVW(u[len(qhatv):], u[len(qhatv):], c)
+	}
+	if c > 0 {
+		panic("impossible")
+	}
+
+	// Done!
+	addAt(z, qhat.norm(), 0)
 }
 
 // Length of x in bits. x must be normalized.
diff --git a/libgo/go/math/big/nat_test.go b/libgo/go/math/big/nat_test.go
index 3c79495..32f29e3 100644
--- a/libgo/go/math/big/nat_test.go
+++ b/libgo/go/math/big/nat_test.go
@@ -192,10 +192,22 @@
 	}
 }
 
+// rndNat returns a random nat value >= 0 of (usually) n words in length.
+// In extremely unlikely cases it may be smaller than n words if the top-
+// most words are 0.
 func rndNat(n int) nat {
 	return nat(rndV(n)).norm()
 }
 
+// rndNat1 is like rndNat but the result is guaranteed to be > 0.
+func rndNat1(n int) nat {
+	x := nat(rndV(n)).norm()
+	if len(x) == 0 {
+		x.setWord(1)
+	}
+	return x
+}
+
 func BenchmarkMul(b *testing.B) {
 	mulx := rndNat(1e4)
 	muly := rndNat(1e4)
@@ -206,6 +218,29 @@
 	}
 }
 
+func benchmarkNatMul(b *testing.B, nwords int) {
+	x := rndNat(nwords)
+	y := rndNat(nwords)
+	var z nat
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		z.mul(x, y)
+	}
+}
+
+var mulBenchSizes = []int{10, 100, 1000, 10000, 100000}
+
+func BenchmarkNatMul(b *testing.B) {
+	for _, n := range mulBenchSizes {
+		if isRaceBuilder && n > 1e3 {
+			continue
+		}
+		b.Run(fmt.Sprintf("%d", n), func(b *testing.B) {
+			benchmarkNatMul(b, n)
+		})
+	}
+}
+
 func TestNLZ(t *testing.T) {
 	var x Word = _B >> 1
 	for i := 0; i <= _W; i++ {
@@ -681,7 +716,11 @@
 	}
 }
 
-var sqrBenchSizes = []int{1, 2, 3, 5, 8, 10, 20, 30, 50, 80, 100, 200, 300, 500, 800, 1000}
+var sqrBenchSizes = []int{
+	1, 2, 3, 5, 8, 10, 20, 30, 50, 80,
+	100, 200, 300, 500, 800,
+	1000, 10000, 100000,
+}
 
 func BenchmarkNatSqr(b *testing.B) {
 	for _, n := range sqrBenchSizes {
@@ -712,3 +751,38 @@
 		})
 	}
 }
+
+func TestNatDiv(t *testing.T) {
+	sizes := []int{
+		1, 2, 5, 8, 15, 25, 40, 65, 100,
+		200, 500, 800, 1500, 2500, 4000, 6500, 10000,
+	}
+	for _, i := range sizes {
+		for _, j := range sizes {
+			a := rndNat1(i)
+			b := rndNat1(j)
+			// the test requires b >= 2
+			if len(b) == 1 && b[0] == 1 {
+				b[0] = 2
+			}
+			// choose a remainder c < b
+			c := rndNat1(len(b))
+			if len(c) == len(b) && c[len(c)-1] >= b[len(b)-1] {
+				c[len(c)-1] = 0
+				c = c.norm()
+			}
+			// compute x = a*b+c
+			x := nat(nil).mul(a, b)
+			x = x.add(x, c)
+
+			var q, r nat
+			q, r = q.div(r, x, b)
+			if q.cmp(a) != 0 {
+				t.Fatalf("wrong quotient: got %s; want %s for %s/%s", q.utoa(10), a.utoa(10), x.utoa(10), b.utoa(10))
+			}
+			if r.cmp(c) != 0 {
+				t.Fatalf("wrong remainder: got %s; want %s for %s/%s", r.utoa(10), c.utoa(10), x.utoa(10), b.utoa(10))
+			}
+		}
+	}
+}
diff --git a/libgo/go/math/big/rat.go b/libgo/go/math/big/rat.go
index c8bf698..d35cd4c 100644
--- a/libgo/go/math/big/rat.go
+++ b/libgo/go/math/big/rat.go
@@ -22,7 +22,9 @@
 // of Rats are not supported and may lead to errors.
 type Rat struct {
 	// To make zero values for Rat work w/o initialization,
-	// a zero value of b (len(b) == 0) acts like b == 1.
+	// a zero value of b (len(b) == 0) acts like b == 1. At
+	// the earliest opportunity (when an assignment to the Rat
+	// is made), such uninitialized denominators are set to 1.
 	// a.neg determines the sign of the Rat, b.neg is ignored.
 	a, b Int
 }
@@ -271,7 +273,7 @@
 func (x *Rat) Float32() (f float32, exact bool) {
 	b := x.b.abs
 	if len(b) == 0 {
-		b = b.set(natOne) // materialize denominator
+		b = natOne
 	}
 	f, exact = quotToFloat32(x.a.abs, b)
 	if x.a.neg {
@@ -287,7 +289,7 @@
 func (x *Rat) Float64() (f float64, exact bool) {
 	b := x.b.abs
 	if len(b) == 0 {
-		b = b.set(natOne) // materialize denominator
+		b = natOne
 	}
 	f, exact = quotToFloat64(x.a.abs, b)
 	if x.a.neg {
@@ -297,6 +299,7 @@
 }
 
 // SetFrac sets z to a/b and returns z.
+// If b == 0, SetFrac panics.
 func (z *Rat) SetFrac(a, b *Int) *Rat {
 	z.a.neg = a.neg != b.neg
 	babs := b.abs
@@ -312,11 +315,12 @@
 }
 
 // SetFrac64 sets z to a/b and returns z.
+// If b == 0, SetFrac64 panics.
 func (z *Rat) SetFrac64(a, b int64) *Rat {
-	z.a.SetInt64(a)
 	if b == 0 {
 		panic("division by zero")
 	}
+	z.a.SetInt64(a)
 	if b < 0 {
 		b = -b
 		z.a.neg = !z.a.neg
@@ -328,21 +332,21 @@
 // SetInt sets z to x (by making a copy of x) and returns z.
 func (z *Rat) SetInt(x *Int) *Rat {
 	z.a.Set(x)
-	z.b.abs = z.b.abs[:0]
+	z.b.abs = z.b.abs.setWord(1)
 	return z
 }
 
 // SetInt64 sets z to x and returns z.
 func (z *Rat) SetInt64(x int64) *Rat {
 	z.a.SetInt64(x)
-	z.b.abs = z.b.abs[:0]
+	z.b.abs = z.b.abs.setWord(1)
 	return z
 }
 
 // SetUint64 sets z to x and returns z.
 func (z *Rat) SetUint64(x uint64) *Rat {
 	z.a.SetUint64(x)
-	z.b.abs = z.b.abs[:0]
+	z.b.abs = z.b.abs.setWord(1)
 	return z
 }
 
@@ -352,6 +356,9 @@
 		z.a.Set(&x.a)
 		z.b.Set(&x.b)
 	}
+	if len(z.b.abs) == 0 {
+		z.b.abs = z.b.abs.setWord(1)
+	}
 	return z
 }
 
@@ -370,20 +377,13 @@
 }
 
 // Inv sets z to 1/x and returns z.
+// If x == 0, Inv panics.
 func (z *Rat) Inv(x *Rat) *Rat {
 	if len(x.a.abs) == 0 {
 		panic("division by zero")
 	}
 	z.Set(x)
-	a := z.b.abs
-	if len(a) == 0 {
-		a = a.set(natOne) // materialize numerator
-	}
-	b := z.a.abs
-	if b.cmp(natOne) == 0 {
-		b = b[:0] // normalize denominator
-	}
-	z.a.abs, z.b.abs = a, b // sign doesn't change
+	z.a.abs, z.b.abs = z.b.abs, z.a.abs
 	return z
 }
 
@@ -411,12 +411,19 @@
 }
 
 // Denom returns the denominator of x; it is always > 0.
-// The result is a reference to x's denominator; it
+// The result is a reference to x's denominator, unless
+// x is an uninitialized (zero value) Rat, in which case
+// the result is a new Int of value 1. (To initialize x,
+// any operation that sets x will do, including x.Set(x).)
+// If the result is a reference to x's denominator it
 // may change if a new value is assigned to x, and vice versa.
 func (x *Rat) Denom() *Int {
 	x.b.neg = false // the result is always >= 0
 	if len(x.b.abs) == 0 {
-		x.b.abs = x.b.abs.set(natOne) // materialize denominator
+		// Note: If this proves problematic, we could
+		//       panic instead and require the Rat to
+		//       be explicitly initialized.
+		return &Int{abs: nat{1}}
 	}
 	return &x.b
 }
@@ -424,25 +431,20 @@
 func (z *Rat) norm() *Rat {
 	switch {
 	case len(z.a.abs) == 0:
-		// z == 0 - normalize sign and denominator
+		// z == 0; normalize sign and denominator
 		z.a.neg = false
-		z.b.abs = z.b.abs[:0]
+		fallthrough
 	case len(z.b.abs) == 0:
-		// z is normalized int - nothing to do
-	case z.b.abs.cmp(natOne) == 0:
-		// z is int - normalize denominator
-		z.b.abs = z.b.abs[:0]
+		// z is integer; normalize denominator
+		z.b.abs = z.b.abs.setWord(1)
 	default:
+		// z is fraction; normalize numerator and denominator
 		neg := z.a.neg
 		z.a.neg = false
 		z.b.neg = false
 		if f := NewInt(0).lehmerGCD(nil, nil, &z.a, &z.b); f.Cmp(intOne) != 0 {
 			z.a.abs, _ = z.a.abs.div(nil, z.a.abs, f.abs)
 			z.b.abs, _ = z.b.abs.div(nil, z.b.abs, f.abs)
-			if z.b.abs.cmp(natOne) == 0 {
-				// z is int - normalize denominator
-				z.b.abs = z.b.abs[:0]
-			}
 		}
 		z.a.neg = neg
 	}
@@ -454,6 +456,8 @@
 // returns z.
 func mulDenom(z, x, y nat) nat {
 	switch {
+	case len(x) == 0 && len(y) == 0:
+		return z.setWord(1)
 	case len(x) == 0:
 		return z.set(y)
 	case len(y) == 0:
@@ -509,10 +513,14 @@
 // Mul sets z to the product x*y and returns z.
 func (z *Rat) Mul(x, y *Rat) *Rat {
 	if x == y {
-		// a squared Rat is positive and can't be reduced
+		// a squared Rat is positive and can't be reduced (no need to call norm())
 		z.a.neg = false
 		z.a.abs = z.a.abs.sqr(x.a.abs)
-		z.b.abs = z.b.abs.sqr(x.b.abs)
+		if len(x.b.abs) == 0 {
+			z.b.abs = z.b.abs.setWord(1)
+		} else {
+			z.b.abs = z.b.abs.sqr(x.b.abs)
+		}
 		return z
 	}
 	z.a.Mul(&x.a, &y.a)
@@ -521,7 +529,7 @@
 }
 
 // Quo sets z to the quotient x/y and returns z.
-// If y == 0, a division-by-zero run-time panic occurs.
+// If y == 0, Quo panics.
 func (z *Rat) Quo(x, y *Rat) *Rat {
 	if len(y.a.abs) == 0 {
 		panic("division by zero")
diff --git a/libgo/go/math/big/rat_test.go b/libgo/go/math/big/rat_test.go
index 83c5d5c..02569c1 100644
--- a/libgo/go/math/big/rat_test.go
+++ b/libgo/go/math/big/rat_test.go
@@ -329,18 +329,40 @@
 		t.Errorf("0) got %s want %s", zero.Denom(), one)
 	}
 
-	// 1a) a zero value remains zero independent of denominator
-	x := new(Rat)
-	x.Denom().Set(new(Int).Neg(b))
-	if x.Cmp(zero) != 0 {
-		t.Errorf("1a) got %s want %s", x, zero)
+	// 1a) the denominator of an (uninitialized) zero value is not shared with the value
+	s := &zero.b
+	d := zero.Denom()
+	if d == s {
+		t.Errorf("1a) got %s (%p) == %s (%p) want different *Int values", d, d, s, s)
 	}
 
-	// 1b) a zero value may have a denominator != 0 and != 1
+	// 1b) the denominator of an (uninitialized) value is a new 1 each time
+	d1 := zero.Denom()
+	d2 := zero.Denom()
+	if d1 == d2 {
+		t.Errorf("1b) got %s (%p) == %s (%p) want different *Int values", d1, d1, d2, d2)
+	}
+
+	// 1c) the denominator of an initialized zero value is shared with the value
+	x := new(Rat)
+	x.Set(x) // initialize x (any operation that sets x explicitly will do)
+	s = &x.b
+	d = x.Denom()
+	if d != s {
+		t.Errorf("1c) got %s (%p) != %s (%p) want identical *Int values", d, d, s, s)
+	}
+
+	// 1d) a zero value remains zero independent of denominator
+	x.Denom().Set(new(Int).Neg(b))
+	if x.Cmp(zero) != 0 {
+		t.Errorf("1d) got %s want %s", x, zero)
+	}
+
+	// 1e) a zero value may have a denominator != 0 and != 1
 	x.Num().Set(a)
 	qab := new(Rat).SetFrac(a, b)
 	if x.Cmp(qab) != 0 {
-		t.Errorf("1b) got %s want %s", x, qab)
+		t.Errorf("1e) got %s want %s", x, qab)
 	}
 
 	// 2a) an integral value becomes a fraction depending on denominator
@@ -678,3 +700,29 @@
 		x.Cmp(y)
 	}
 }
+
+// TestIssue34919 verifies that a Rat's denominator is not modified
+// when simply accessing the Rat value.
+func TestIssue34919(t *testing.T) {
+	for _, acc := range []struct {
+		name string
+		f    func(*Rat)
+	}{
+		{"Float32", func(x *Rat) { x.Float32() }},
+		{"Float64", func(x *Rat) { x.Float64() }},
+		{"Inv", func(x *Rat) { new(Rat).Inv(x) }},
+		{"Sign", func(x *Rat) { x.Sign() }},
+		{"IsInt", func(x *Rat) { x.IsInt() }},
+		{"Num", func(x *Rat) { x.Num() }},
+		// {"Denom", func(x *Rat) { x.Denom() }}, TODO(gri) should we change the API? See issue #33792.
+	} {
+		// A denominator of length 0 is interpreted as 1. Make sure that
+		// "materialization" of the denominator doesn't lead to setting
+		// the underlying array element 0 to 1.
+		r := &Rat{Int{abs: nat{991}}, Int{abs: make(nat, 0, 1)}}
+		acc.f(r)
+		if d := r.b.abs[:1][0]; d != 0 {
+			t.Errorf("%s modified denominator: got %d, want 0", acc.name, d)
+		}
+	}
+}
diff --git a/libgo/go/math/big/ratconv.go b/libgo/go/math/big/ratconv.go
index f29ec98..941139e 100644
--- a/libgo/go/math/big/ratconv.go
+++ b/libgo/go/math/big/ratconv.go
@@ -123,7 +123,7 @@
 	// Multiplications are commutative, so we can apply them in any
 	// order. We only have powers of 2 and 10, and we split powers
 	// of 10 into the product of the same powers of 2 and 5. This
-	// may reduce the the size of shift/multiplication factors or
+	// may reduce the size of shift/multiplication factors or
 	// divisors required to create the final fraction, depending
 	// on the actual floating-point value.
 
diff --git a/libgo/go/math/bits/bits.go b/libgo/go/math/bits/bits.go
index 3114c14..0bfe90c 100644
--- a/libgo/go/math/bits/bits.go
+++ b/libgo/go/math/bits/bits.go
@@ -555,3 +555,34 @@
 
 	return q1*two32 + q0, (un21*two32 + un0 - q0*y) >> s
 }
+
+// Rem returns the remainder of (hi, lo) divided by y. Rem panics for
+// y == 0 (division by zero) but, unlike Div, it doesn't panic on a
+// quotient overflow.
+func Rem(hi, lo, y uint) uint {
+	if UintSize == 32 {
+		return uint(Rem32(uint32(hi), uint32(lo), uint32(y)))
+	}
+	return uint(Rem64(uint64(hi), uint64(lo), uint64(y)))
+}
+
+// Rem32 returns the remainder of (hi, lo) divided by y. Rem32 panics
+// for y == 0 (division by zero) but, unlike Div32, it doesn't panic
+// on a quotient overflow.
+func Rem32(hi, lo, y uint32) uint32 {
+	return uint32((uint64(hi)<<32 | uint64(lo)) % uint64(y))
+}
+
+// Rem64 returns the remainder of (hi, lo) divided by y. Rem64 panics
+// for y == 0 (division by zero) but, unlike Div64, it doesn't panic
+// on a quotient overflow.
+func Rem64(hi, lo, y uint64) uint64 {
+	// We scale down hi so that hi < y, then use Div64 to compute the
+	// rem with the guarantee that it won't panic on quotient overflow.
+	// Given that
+	//   hi ≡ hi%y    (mod y)
+	// we have
+	//   hi<<64 + lo ≡ (hi%y)<<64 + lo    (mod y)
+	_, rem := Div64(hi%y, lo, y)
+	return rem
+}
diff --git a/libgo/go/math/bits/bits_test.go b/libgo/go/math/bits/bits_test.go
index afdfd39..c0f4309 100644
--- a/libgo/go/math/bits/bits_test.go
+++ b/libgo/go/math/bits/bits_test.go
@@ -984,6 +984,76 @@
 	t.Errorf("undefined q, r = %v, %v calculated when Div64 should have panicked", q, r)
 }
 
+func TestRem32(t *testing.T) {
+	// Sanity check: for non-oveflowing dividends, the result is the
+	// same as the rem returned by Div32
+	hi, lo, y := uint32(510510), uint32(9699690), uint32(510510+1) // ensure hi < y
+	for i := 0; i < 1000; i++ {
+		r := Rem32(hi, lo, y)
+		_, r2 := Div32(hi, lo, y)
+		if r != r2 {
+			t.Errorf("Rem32(%v, %v, %v) returned %v, but Div32 returned rem %v", hi, lo, y, r, r2)
+		}
+		y += 13
+	}
+}
+
+func TestRem32Overflow(t *testing.T) {
+	// To trigger a quotient overflow, we need y <= hi
+	hi, lo, y := uint32(510510), uint32(9699690), uint32(7)
+	for i := 0; i < 1000; i++ {
+		r := Rem32(hi, lo, y)
+		_, r2 := Div64(0, uint64(hi)<<32|uint64(lo), uint64(y))
+		if r != uint32(r2) {
+			t.Errorf("Rem32(%v, %v, %v) returned %v, but Div64 returned rem %v", hi, lo, y, r, r2)
+		}
+		y += 13
+	}
+}
+
+func TestRem64(t *testing.T) {
+	// Sanity check: for non-oveflowing dividends, the result is the
+	// same as the rem returned by Div64
+	hi, lo, y := uint64(510510), uint64(9699690), uint64(510510+1) // ensure hi < y
+	for i := 0; i < 1000; i++ {
+		r := Rem64(hi, lo, y)
+		_, r2 := Div64(hi, lo, y)
+		if r != r2 {
+			t.Errorf("Rem64(%v, %v, %v) returned %v, but Div64 returned rem %v", hi, lo, y, r, r2)
+		}
+		y += 13
+	}
+}
+
+func TestRem64Overflow(t *testing.T) {
+	Rem64Tests := []struct {
+		hi, lo, y uint64
+		rem       uint64
+	}{
+		// Testcases computed using Python 3, as:
+		//   >>> hi = 42; lo = 1119; y = 42
+		//   >>> ((hi<<64)+lo) % y
+		{42, 1119, 42, 27},
+		{42, 1119, 38, 9},
+		{42, 1119, 26, 23},
+		{469, 0, 467, 271},
+		{469, 0, 113, 58},
+		{111111, 111111, 1171, 803},
+		{3968194946088682615, 3192705705065114702, 1000037, 56067},
+	}
+
+	for _, rt := range Rem64Tests {
+		if rt.hi < rt.y {
+			t.Fatalf("Rem64(%v, %v, %v) is not a test with quo overflow", rt.hi, rt.lo, rt.y)
+		}
+		rem := Rem64(rt.hi, rt.lo, rt.y)
+		if rem != rt.rem {
+			t.Errorf("Rem64(%v, %v, %v) returned %v, wanted %v",
+				rt.hi, rt.lo, rt.y, rem, rt.rem)
+		}
+	}
+}
+
 func BenchmarkAdd(b *testing.B) {
 	var z, c uint
 	for i := 0; i < b.N; i++ {
diff --git a/libgo/go/math/example_test.go b/libgo/go/math/example_test.go
index 3648913..50c7426 100644
--- a/libgo/go/math/example_test.go
+++ b/libgo/go/math/example_test.go
@@ -44,6 +44,11 @@
 	// Output: 0.00
 }
 
+func ExampleCopysign() {
+	fmt.Printf("%.2f", math.Copysign(3.2, -1))
+	// Output: -3.20
+}
+
 func ExampleCos() {
 	fmt.Printf("%.2f", math.Cos(math.Pi/2))
 	// Output: 0.00
@@ -173,3 +178,44 @@
 	// 2.0
 	// 2.0
 }
+func ExampleDim() {
+	fmt.Printf("%.2f\n", math.Dim(4, -2))
+	fmt.Printf("%.2f\n", math.Dim(-4, 2))
+	// Output:
+	// 6.00
+	// 0.00
+}
+
+func ExampleExp() {
+	fmt.Printf("%.2f\n", math.Exp(1))
+	fmt.Printf("%.2f\n", math.Exp(2))
+	fmt.Printf("%.2f\n", math.Exp(-1))
+	// Output:
+	// 2.72
+	// 7.39
+	// 0.37
+}
+
+func ExampleExp2() {
+	fmt.Printf("%.2f\n", math.Exp2(1))
+	fmt.Printf("%.2f\n", math.Exp2(-3))
+	// Output:
+	// 2.00
+	// 0.12
+}
+
+func ExampleExpm1() {
+	fmt.Printf("%.6f\n", math.Expm1(0.01))
+	fmt.Printf("%.6f\n", math.Expm1(-1))
+	// Output:
+	// 0.010050
+	// -0.632121
+}
+
+func ExampleTrunc() {
+	fmt.Printf("%.2f\n", math.Trunc(math.Pi))
+	fmt.Printf("%.2f\n", math.Trunc(-1.2345))
+	// Output:
+	// 3.00
+	// -1.00
+}
diff --git a/libgo/go/math/exp_asm.go b/libgo/go/math/exp_asm.go
index 298420f..11e0a61 100644
--- a/libgo/go/math/exp_asm.go
+++ b/libgo/go/math/exp_asm.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build amd64 amd64p32
+// +build amd64
 // +build ignore
 
 package math
diff --git a/libgo/go/math/fma.go b/libgo/go/math/fma.go
new file mode 100644
index 0000000..db78dfa
--- /dev/null
+++ b/libgo/go/math/fma.go
@@ -0,0 +1,170 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package math
+
+import "math/bits"
+
+func zero(x uint64) uint64 {
+	if x == 0 {
+		return 1
+	}
+	return 0
+	// branchless:
+	// return ((x>>1 | x&1) - 1) >> 63
+}
+
+func nonzero(x uint64) uint64 {
+	if x != 0 {
+		return 1
+	}
+	return 0
+	// branchless:
+	// return 1 - ((x>>1|x&1)-1)>>63
+}
+
+func shl(u1, u2 uint64, n uint) (r1, r2 uint64) {
+	r1 = u1<<n | u2>>(64-n) | u2<<(n-64)
+	r2 = u2 << n
+	return
+}
+
+func shr(u1, u2 uint64, n uint) (r1, r2 uint64) {
+	r2 = u2>>n | u1<<(64-n) | u1>>(n-64)
+	r1 = u1 >> n
+	return
+}
+
+// shrcompress compresses the bottom n+1 bits of the two-word
+// value into a single bit. the result is equal to the value
+// shifted to the right by n, except the result's 0th bit is
+// set to the bitwise OR of the bottom n+1 bits.
+func shrcompress(u1, u2 uint64, n uint) (r1, r2 uint64) {
+	// TODO: Performance here is really sensitive to the
+	// order/placement of these branches. n == 0 is common
+	// enough to be in the fast path. Perhaps more measurement
+	// needs to be done to find the optimal order/placement?
+	switch {
+	case n == 0:
+		return u1, u2
+	case n == 64:
+		return 0, u1 | nonzero(u2)
+	case n >= 128:
+		return 0, nonzero(u1 | u2)
+	case n < 64:
+		r1, r2 = shr(u1, u2, n)
+		r2 |= nonzero(u2 & (1<<n - 1))
+	case n < 128:
+		r1, r2 = shr(u1, u2, n)
+		r2 |= nonzero(u1&(1<<(n-64)-1) | u2)
+	}
+	return
+}
+
+func lz(u1, u2 uint64) (l int32) {
+	l = int32(bits.LeadingZeros64(u1))
+	if l == 64 {
+		l += int32(bits.LeadingZeros64(u2))
+	}
+	return l
+}
+
+// split splits b into sign, biased exponent, and mantissa.
+// It adds the implicit 1 bit to the mantissa for normal values,
+// and normalizes subnormal values.
+func split(b uint64) (sign uint32, exp int32, mantissa uint64) {
+	sign = uint32(b >> 63)
+	exp = int32(b>>52) & mask
+	mantissa = b & fracMask
+
+	if exp == 0 {
+		// Normalize value if subnormal.
+		shift := uint(bits.LeadingZeros64(mantissa) - 11)
+		mantissa <<= shift
+		exp = 1 - int32(shift)
+	} else {
+		// Add implicit 1 bit
+		mantissa |= 1 << 52
+	}
+	return
+}
+
+// FMA returns x * y + z, computed with only one rounding.
+// (That is, FMA returns the fused multiply-add of x, y, and z.)
+func FMA(x, y, z float64) float64 {
+	bx, by, bz := Float64bits(x), Float64bits(y), Float64bits(z)
+
+	// Inf or NaN or zero involved. At most one rounding will occur.
+	if x == 0.0 || y == 0.0 || z == 0.0 || bx&uvinf == uvinf || by&uvinf == uvinf {
+		return x*y + z
+	}
+	// Handle non-finite z separately. Evaluating x*y+z where
+	// x and y are finite, but z is infinite, should always result in z.
+	if bz&uvinf == uvinf {
+		return z
+	}
+
+	// Inputs are (sub)normal.
+	// Split x, y, z into sign, exponent, mantissa.
+	xs, xe, xm := split(bx)
+	ys, ye, ym := split(by)
+	zs, ze, zm := split(bz)
+
+	// Compute product p = x*y as sign, exponent, two-word mantissa.
+	// Start with exponent. "is normal" bit isn't subtracted yet.
+	pe := xe + ye - bias + 1
+
+	// pm1:pm2 is the double-word mantissa for the product p.
+	// Shift left to leave top bit in product. Effectively
+	// shifts the 106-bit product to the left by 21.
+	pm1, pm2 := bits.Mul64(xm<<10, ym<<11)
+	zm1, zm2 := zm<<10, uint64(0)
+	ps := xs ^ ys // product sign
+
+	// normalize to 62nd bit
+	is62zero := uint((^pm1 >> 62) & 1)
+	pm1, pm2 = shl(pm1, pm2, is62zero)
+	pe -= int32(is62zero)
+
+	// Swap addition operands so |p| >= |z|
+	if pe < ze || (pe == ze && (pm1 < zm1 || (pm1 == zm1 && pm2 < zm2))) {
+		ps, pe, pm1, pm2, zs, ze, zm1, zm2 = zs, ze, zm1, zm2, ps, pe, pm1, pm2
+	}
+
+	// Align significands
+	zm1, zm2 = shrcompress(zm1, zm2, uint(pe-ze))
+
+	// Compute resulting significands, normalizing if necessary.
+	var m, c uint64
+	if ps == zs {
+		// Adding (pm1:pm2) + (zm1:zm2)
+		pm2, c = bits.Add64(pm2, zm2, 0)
+		pm1, _ = bits.Add64(pm1, zm1, c)
+		pe -= int32(^pm1 >> 63)
+		pm1, m = shrcompress(pm1, pm2, uint(64+pm1>>63))
+	} else {
+		// Subtracting (pm1:pm2) - (zm1:zm2)
+		// TODO: should we special-case cancellation?
+		pm2, c = bits.Sub64(pm2, zm2, 0)
+		pm1, _ = bits.Sub64(pm1, zm1, c)
+		nz := lz(pm1, pm2)
+		pe -= nz
+		m, pm2 = shl(pm1, pm2, uint(nz-1))
+		m |= nonzero(pm2)
+	}
+
+	// Round and break ties to even
+	if pe > 1022+bias || pe == 1022+bias && (m+1<<9)>>63 == 1 {
+		// rounded value overflows exponent range
+		return Float64frombits(uint64(ps)<<63 | uvinf)
+	}
+	if pe < 0 {
+		n := uint(-pe)
+		m = m>>n | nonzero(m&(1<<n-1))
+		pe = 0
+	}
+	m = ((m + 1<<9) >> 10) & ^zero((m&(1<<10-1))^1<<9)
+	pe &= -int32(nonzero(m))
+	return Float64frombits(uint64(ps)<<63 + uint64(pe)<<52 + m)
+}
diff --git a/libgo/go/math/rand/rand.go b/libgo/go/math/rand/rand.go
index 04382e6..d6422c9 100644
--- a/libgo/go/math/rand/rand.go
+++ b/libgo/go/math/rand/rand.go
@@ -261,15 +261,20 @@
 	if lk, ok := r.src.(*lockedSource); ok {
 		return lk.read(p, &r.readVal, &r.readPos)
 	}
-	return read(p, r.Int63, &r.readVal, &r.readPos)
+	return read(p, r.src, &r.readVal, &r.readPos)
 }
 
-func read(p []byte, int63 func() int64, readVal *int64, readPos *int8) (n int, err error) {
+func read(p []byte, src Source, readVal *int64, readPos *int8) (n int, err error) {
 	pos := *readPos
 	val := *readVal
+	rng, _ := src.(*rngSource)
 	for n = 0; n < len(p); n++ {
 		if pos == 0 {
-			val = int63()
+			if rng != nil {
+				val = rng.Int63()
+			} else {
+				val = src.Int63()
+			}
 			pos = 7
 		}
 		p[n] = byte(val)
@@ -285,12 +290,15 @@
  * Top-level convenience functions
  */
 
-var globalRand = New(&lockedSource{src: NewSource(1).(Source64)})
+var globalRand = New(&lockedSource{src: NewSource(1).(*rngSource)})
+
+// Type assert that globalRand's source is a lockedSource whose src is a *rngSource.
+var _ *rngSource = globalRand.src.(*lockedSource).src
 
 // Seed uses the provided seed value to initialize the default Source to a
 // deterministic state. If Seed is not called, the generator behaves as
 // if seeded by Seed(1). Seed values that have the same remainder when
-// divided by 2^31-1 generate the same pseudo-random sequence.
+// divided by 2³¹-1 generate the same pseudo-random sequence.
 // Seed, unlike the Rand.Seed method, is safe for concurrent use.
 func Seed(seed int64) { globalRand.Seed(seed) }
 
@@ -373,7 +381,7 @@
 
 type lockedSource struct {
 	lk  sync.Mutex
-	src Source64
+	src *rngSource
 }
 
 func (r *lockedSource) Int63() (n int64) {
@@ -407,7 +415,7 @@
 // read implements Read for a lockedSource without a race condition.
 func (r *lockedSource) read(p []byte, readVal *int64, readPos *int8) (n int, err error) {
 	r.lk.Lock()
-	n, err = read(p, r.src.Int63, readVal, readPos)
+	n, err = read(p, r.src, readVal, readPos)
 	r.lk.Unlock()
 	return
 }
diff --git a/libgo/go/math/rand/rand_test.go b/libgo/go/math/rand/rand_test.go
index ee9c8f8..e037aae 100644
--- a/libgo/go/math/rand/rand_test.go
+++ b/libgo/go/math/rand/rand_test.go
@@ -565,6 +565,14 @@
 	}
 }
 
+func BenchmarkInt63ThreadsafeParallel(b *testing.B) {
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			Int63()
+		}
+	})
+}
+
 func BenchmarkInt63Unthreadsafe(b *testing.B) {
 	r := New(NewSource(1))
 	for n := b.N; n > 0; n-- {
diff --git a/libgo/go/mime/multipart/multipart.go b/libgo/go/mime/multipart/multipart.go
index a222409..1750300 100644
--- a/libgo/go/mime/multipart/multipart.go
+++ b/libgo/go/mime/multipart/multipart.go
@@ -36,11 +36,6 @@
 	// The headers of the body, if any, with the keys canonicalized
 	// in the same fashion that the Go http.Request headers are.
 	// For example, "foo-bar" changes case to "Foo-Bar"
-	//
-	// As a special case, if the "Content-Transfer-Encoding" header
-	// has a value of "quoted-printable", that header is instead
-	// hidden from this map and the body is transparently decoded
-	// during Read calls.
 	Header textproto.MIMEHeader
 
 	mr *Reader
@@ -126,7 +121,7 @@
 	return n, r.err
 }
 
-func newPart(mr *Reader) (*Part, error) {
+func newPart(mr *Reader, rawPart bool) (*Part, error) {
 	bp := &Part{
 		Header: make(map[string][]string),
 		mr:     mr,
@@ -135,10 +130,14 @@
 		return nil, err
 	}
 	bp.r = partReader{bp}
-	const cte = "Content-Transfer-Encoding"
-	if strings.EqualFold(bp.Header.Get(cte), "quoted-printable") {
-		bp.Header.Del(cte)
-		bp.r = quotedprintable.NewReader(bp.r)
+
+	// rawPart is used to switch between Part.NextPart and Part.NextRawPart.
+	if !rawPart {
+		const cte = "Content-Transfer-Encoding"
+		if strings.EqualFold(bp.Header.Get(cte), "quoted-printable") {
+			bp.Header.Del(cte)
+			bp.r = quotedprintable.NewReader(bp.r)
+		}
 	}
 	return bp, nil
 }
@@ -300,7 +299,24 @@
 
 // NextPart returns the next part in the multipart or an error.
 // When there are no more parts, the error io.EOF is returned.
+//
+// As a special case, if the "Content-Transfer-Encoding" header
+// has a value of "quoted-printable", that header is instead
+// hidden and the body is transparently decoded during Read calls.
 func (r *Reader) NextPart() (*Part, error) {
+	return r.nextPart(false)
+}
+
+// NextRawPart returns the next part in the multipart or an error.
+// When there are no more parts, the error io.EOF is returned.
+//
+// Unlike NextPart, it does not have special handling for
+// "Content-Transfer-Encoding: quoted-printable".
+func (r *Reader) NextRawPart() (*Part, error) {
+	return r.nextPart(true)
+}
+
+func (r *Reader) nextPart(rawPart bool) (*Part, error) {
 	if r.currentPart != nil {
 		r.currentPart.Close()
 	}
@@ -325,7 +341,7 @@
 
 		if r.isBoundaryDelimiterLine(line) {
 			r.partsRead++
-			bp, err := newPart(r)
+			bp, err := newPart(r, rawPart)
 			if err != nil {
 				return nil, err
 			}
diff --git a/libgo/go/mime/multipart/multipart_test.go b/libgo/go/mime/multipart/multipart_test.go
index 5dc74b5..b60c54a 100644
--- a/libgo/go/mime/multipart/multipart_test.go
+++ b/libgo/go/mime/multipart/multipart_test.go
@@ -449,6 +449,66 @@
 	}
 }
 
+func TestRawPart(t *testing.T) {
+	// https://github.com/golang/go/issues/29090
+
+	body := strings.Replace(`--0016e68ee29c5d515f04cedf6733
+Content-Type: text/plain; charset="utf-8"
+Content-Transfer-Encoding: quoted-printable
+
+<div dir=3D"ltr">Hello World.</div>
+--0016e68ee29c5d515f04cedf6733
+Content-Type: text/plain; charset="utf-8"
+Content-Transfer-Encoding: quoted-printable
+
+<div dir=3D"ltr">Hello World.</div>
+--0016e68ee29c5d515f04cedf6733--`, "\n", "\r\n", -1)
+
+	r := NewReader(strings.NewReader(body), "0016e68ee29c5d515f04cedf6733")
+
+	// This part is expected to be raw, bypassing the automatic handling
+	// of quoted-printable.
+	part, err := r.NextRawPart()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, ok := part.Header["Content-Transfer-Encoding"]; !ok {
+		t.Errorf("missing Content-Transfer-Encoding")
+	}
+	var buf bytes.Buffer
+	_, err = io.Copy(&buf, part)
+	if err != nil {
+		t.Error(err)
+	}
+	got := buf.String()
+	// Data is still quoted-printable.
+	want := `<div dir=3D"ltr">Hello World.</div>`
+	if got != want {
+		t.Errorf("wrong part value:\n got: %q\nwant: %q", got, want)
+	}
+
+	// This part is expected to have automatic decoding of quoted-printable.
+	part, err = r.NextPart()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if te, ok := part.Header["Content-Transfer-Encoding"]; ok {
+		t.Errorf("unexpected Content-Transfer-Encoding of %q", te)
+	}
+
+	buf.Reset()
+	_, err = io.Copy(&buf, part)
+	if err != nil {
+		t.Error(err)
+	}
+	got = buf.String()
+	// QP data has been decoded.
+	want = `<div dir="ltr">Hello World.</div>`
+	if got != want {
+		t.Errorf("wrong part value:\n got: %q\nwant: %q", got, want)
+	}
+}
+
 // Test parsing an image attachment from gmail, which previously failed.
 func TestNested(t *testing.T) {
 	// nested-mime is the body part of a multipart/mixed email
diff --git a/libgo/go/mime/type.go b/libgo/go/mime/type.go
index ad76313..aa05077 100644
--- a/libgo/go/mime/type.go
+++ b/libgo/go/mime/type.go
@@ -63,8 +63,8 @@
 	".html": "text/html; charset=utf-8",
 	".jpeg": "image/jpeg",
 	".jpg":  "image/jpeg",
-	".js":   "application/javascript",
-	".mjs":  "application/javascript",
+	".js":   "text/javascript; charset=utf-8",
+	".mjs":  "text/javascript; charset=utf-8",
 	".pdf":  "application/pdf",
 	".png":  "image/png",
 	".svg":  "image/svg+xml",
diff --git a/libgo/go/mime/type_unix.go b/libgo/go/mime/type_unix.go
index 46ae596..5db1b68 100644
--- a/libgo/go/mime/type_unix.go
+++ b/libgo/go/mime/type_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package mime
 
diff --git a/libgo/go/net/dial.go b/libgo/go/net/dial.go
index 4d55a95..d8be1c2 100644
--- a/libgo/go/net/dial.go
+++ b/libgo/go/net/dial.go
@@ -23,6 +23,8 @@
 // The zero value for each field is equivalent to dialing
 // without that option. Dialing with the zero value of Dialer
 // is therefore equivalent to just calling the Dial function.
+//
+// It is safe to call Dialer's methods concurrently.
 type Dialer struct {
 	// Timeout is the maximum amount of time a dial will wait for
 	// a connect to complete. If Deadline is also set, it may fail
@@ -527,20 +529,21 @@
 		default:
 		}
 
-		deadline, _ := ctx.Deadline()
-		partialDeadline, err := partialDeadline(time.Now(), deadline, len(ras)-i)
-		if err != nil {
-			// Ran out of time.
-			if firstErr == nil {
-				firstErr = &OpError{Op: "dial", Net: sd.network, Source: sd.LocalAddr, Addr: ra, Err: err}
-			}
-			break
-		}
 		dialCtx := ctx
-		if partialDeadline.Before(deadline) {
-			var cancel context.CancelFunc
-			dialCtx, cancel = context.WithDeadline(ctx, partialDeadline)
-			defer cancel()
+		if deadline, hasDeadline := ctx.Deadline(); hasDeadline {
+			partialDeadline, err := partialDeadline(time.Now(), deadline, len(ras)-i)
+			if err != nil {
+				// Ran out of time.
+				if firstErr == nil {
+					firstErr = &OpError{Op: "dial", Net: sd.network, Source: sd.LocalAddr, Addr: ra, Err: err}
+				}
+				break
+			}
+			if partialDeadline.Before(deadline) {
+				var cancel context.CancelFunc
+				dialCtx, cancel = context.WithDeadline(ctx, partialDeadline)
+				defer cancel()
+			}
 		}
 
 		c, err := sd.dialSingle(dialCtx, ra)
diff --git a/libgo/go/net/dial_test.go b/libgo/go/net/dial_test.go
index 1bf96fd..ae40079 100644
--- a/libgo/go/net/dial_test.go
+++ b/libgo/go/net/dial_test.go
@@ -14,6 +14,7 @@
 	"io"
 	"os"
 	"runtime"
+	"strings"
 	"sync"
 	"testing"
 	"time"
@@ -154,7 +155,7 @@
 	return c, err
 }
 
-func dialClosedPort() (actual, expected time.Duration) {
+func dialClosedPort(t *testing.T) (actual, expected time.Duration) {
 	// Estimate the expected time for this platform.
 	// On Windows, dialing a closed port takes roughly 1 second,
 	// but other platforms should be instantaneous.
@@ -168,6 +169,7 @@
 
 	l, err := Listen("tcp", "127.0.0.1:0")
 	if err != nil {
+		t.Logf("dialClosedPort: Listen failed: %v", err)
 		return 999 * time.Hour, expected
 	}
 	addr := l.Addr().String()
@@ -183,6 +185,7 @@
 		}
 		elapsed := time.Now().Sub(startTime)
 		if i == 2 {
+			t.Logf("dialClosedPort: measured delay %v", elapsed)
 			return elapsed, expected
 		}
 	}
@@ -195,7 +198,7 @@
 		t.Skip("both IPv4 and IPv6 are required")
 	}
 
-	closedPortDelay, expectClosedPortDelay := dialClosedPort()
+	closedPortDelay, expectClosedPortDelay := dialClosedPort(t)
 	if closedPortDelay > expectClosedPortDelay {
 		t.Errorf("got %v; want <= %v", closedPortDelay, expectClosedPortDelay)
 	}
@@ -316,8 +319,14 @@
 			t.Errorf("#%d: got nil; want non-nil", i)
 		}
 
-		expectElapsedMin := tt.expectElapsed - 95*time.Millisecond
-		expectElapsedMax := tt.expectElapsed + 95*time.Millisecond
+		// We used to always use 95 milliseconds as the slop,
+		// but that was flaky on Windows.  See issue 35616.
+		slop := 95 * time.Millisecond
+		if fifth := tt.expectElapsed / 5; fifth > slop {
+			slop = fifth
+		}
+		expectElapsedMin := tt.expectElapsed - slop
+		expectElapsedMax := tt.expectElapsed + slop
 		if elapsed < expectElapsedMin {
 			t.Errorf("#%d: got %v; want >= %v", i, elapsed, expectElapsedMin)
 		} else if elapsed > expectElapsedMax {
@@ -639,9 +648,11 @@
 		}
 		c, err := d.Dial(tt.network, addr)
 		if err == nil && tt.error != nil || err != nil && tt.error == nil {
-			// On Darwin this occasionally times out.
-			// We don't know why. Issue #22019.
-			if runtime.GOOS == "darwin" && tt.error == nil && os.IsTimeout(err) {
+			// A suspected kernel bug in macOS 10.12 occasionally results in
+			// timeout errors when dialing address ::1. The errors have not
+			// been observed on newer versions of the OS, so we don't plan to work
+			// around them. See https://golang.org/issue/22019.
+			if tt.raddr == "::1" && os.Getenv("GO_BUILDER_NAME") == "darwin-amd64-10_12" && os.IsTimeout(err) {
 				t.Logf("ignoring timeout error on Darwin; see https://golang.org/issue/22019")
 			} else {
 				t.Errorf("%s %v->%s: got %v; want %v", tt.network, tt.laddr, tt.raddr, err, tt.error)
@@ -664,7 +675,7 @@
 		t.Skip("both IPv4 and IPv6 are required")
 	}
 
-	closedPortDelay, expectClosedPortDelay := dialClosedPort()
+	closedPortDelay, expectClosedPortDelay := dialClosedPort(t)
 	if closedPortDelay > expectClosedPortDelay {
 		t.Errorf("got %v; want <= %v", closedPortDelay, expectClosedPortDelay)
 	}
@@ -757,17 +768,8 @@
 }
 
 func TestDialCancel(t *testing.T) {
-	switch testenv.Builder() {
-	case "linux-arm64-buildlet":
-		t.Skip("skipping on linux-arm64-buildlet; incompatible network config? issue 15191")
-	}
 	mustHaveExternalNetwork(t)
 
-	if runtime.GOOS == "nacl" {
-		// nacl doesn't have external network access.
-		t.Skipf("skipping on %s", runtime.GOOS)
-	}
-
 	blackholeIPPort := JoinHostPort(slowDst4, "1234")
 	if !supportsIPv4() {
 		blackholeIPPort = JoinHostPort(slowDst6, "1234")
@@ -810,6 +812,11 @@
 				t.Error(perr)
 			}
 			if ticks < cancelTick {
+				// Using strings.Contains is ugly but
+				// may work on plan9 and windows.
+				if strings.Contains(err.Error(), "connection refused") {
+					t.Skipf("connection to %v failed fast with %v", blackholeIPPort, err)
+				}
 				t.Fatalf("dial error after %d ticks (%d before cancel sent): %v",
 					ticks, cancelTick-ticks, err)
 			}
@@ -923,7 +930,7 @@
 
 func TestDialerControl(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -981,3 +988,32 @@
 		testenv.MustHaveExternalNetwork(t)
 	}
 }
+
+type contextWithNonZeroDeadline struct {
+	context.Context
+}
+
+func (contextWithNonZeroDeadline) Deadline() (time.Time, bool) {
+	// Return non-zero time.Time value with false indicating that no deadline is set.
+	return time.Unix(0, 0), false
+}
+
+func TestDialWithNonZeroDeadline(t *testing.T) {
+	ln, err := newLocalListener("tcp")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer ln.Close()
+	_, port, err := SplitHostPort(ln.Addr().String())
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ctx := contextWithNonZeroDeadline{Context: context.Background()}
+	var dialer Dialer
+	c, err := dialer.DialContext(ctx, "tcp", JoinHostPort("", port))
+	if err != nil {
+		t.Fatal(err)
+	}
+	c.Close()
+}
diff --git a/libgo/go/net/dnsclient_unix.go b/libgo/go/net/dnsclient_unix.go
index b3284b8..da6baf3 100644
--- a/libgo/go/net/dnsclient_unix.go
+++ b/libgo/go/net/dnsclient_unix.go
@@ -765,6 +765,14 @@
 			}
 		}
 		if h.Type != dnsmessage.TypePTR {
+			err := p.SkipAnswer()
+			if err != nil {
+				return nil, &DNSError{
+					Err:    "cannot marshal DNS message",
+					Name:   addr,
+					Server: server,
+				}
+			}
 			continue
 		}
 		ptr, err := p.PTRResource()
diff --git a/libgo/go/net/dnsclient_unix_test.go b/libgo/go/net/dnsclient_unix_test.go
index b51d608..6d72817 100644
--- a/libgo/go/net/dnsclient_unix_test.go
+++ b/libgo/go/net/dnsclient_unix_test.go
@@ -1753,3 +1753,50 @@
 		t.Fatal("exchange failed:", err)
 	}
 }
+
+// Issue 34660: PTR response with non-PTR answers should ignore non-PTR
+func TestPTRandNonPTR(t *testing.T) {
+	fake := fakeDNSServer{
+		rh: func(n, _ string, q dnsmessage.Message, _ time.Time) (dnsmessage.Message, error) {
+			r := dnsmessage.Message{
+				Header: dnsmessage.Header{
+					ID:       q.Header.ID,
+					Response: true,
+					RCode:    dnsmessage.RCodeSuccess,
+				},
+				Questions: q.Questions,
+				Answers: []dnsmessage.Resource{
+					{
+						Header: dnsmessage.ResourceHeader{
+							Name:  q.Questions[0].Name,
+							Type:  dnsmessage.TypePTR,
+							Class: dnsmessage.ClassINET,
+						},
+						Body: &dnsmessage.PTRResource{
+							PTR: dnsmessage.MustNewName("golang.org."),
+						},
+					},
+					{
+						Header: dnsmessage.ResourceHeader{
+							Name:  q.Questions[0].Name,
+							Type:  dnsmessage.TypeTXT,
+							Class: dnsmessage.ClassINET,
+						},
+						Body: &dnsmessage.TXTResource{
+							TXT: []string{"PTR 8 6 60 ..."}, // fake RRSIG
+						},
+					},
+				},
+			}
+			return r, nil
+		},
+	}
+	r := Resolver{PreferGo: true, Dial: fake.DialContext}
+	names, err := r.lookupAddr(context.Background(), "192.0.2.123")
+	if err != nil {
+		t.Fatalf("LookupAddr: %v", err)
+	}
+	if want := []string{"golang.org."}; !reflect.DeepEqual(names, want) {
+		t.Errorf("names = %q; want %q", names, want)
+	}
+}
diff --git a/libgo/go/net/error_posix.go b/libgo/go/net/error_posix.go
index 0ea26e9..c13d5bc 100644
--- a/libgo/go/net/error_posix.go
+++ b/libgo/go/net/error_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package net
 
diff --git a/libgo/go/net/error_test.go b/libgo/go/net/error_test.go
index c4fee5a..89dcc2e 100644
--- a/libgo/go/net/error_test.go
+++ b/libgo/go/net/error_test.go
@@ -185,7 +185,7 @@
 
 func TestProtocolDialError(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "solaris", "illumos":
+	case "solaris", "illumos":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -214,7 +214,7 @@
 
 func TestDialAddrError(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv4() || !supportsIPv6() {
@@ -376,7 +376,7 @@
 
 func TestProtocolListenError(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
diff --git a/libgo/go/net/example_test.go b/libgo/go/net/example_test.go
new file mode 100644
index 0000000..ef8c38f
--- /dev/null
+++ b/libgo/go/net/example_test.go
@@ -0,0 +1,160 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package net_test
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"time"
+)
+
+func ExampleListener() {
+	// Listen on TCP port 2000 on all available unicast and
+	// anycast IP addresses of the local system.
+	l, err := net.Listen("tcp", ":2000")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer l.Close()
+	for {
+		// Wait for a connection.
+		conn, err := l.Accept()
+		if err != nil {
+			log.Fatal(err)
+		}
+		// Handle the connection in a new goroutine.
+		// The loop then returns to accepting, so that
+		// multiple connections may be served concurrently.
+		go func(c net.Conn) {
+			// Echo all incoming data.
+			io.Copy(c, c)
+			// Shut down the connection.
+			c.Close()
+		}(conn)
+	}
+}
+
+func ExampleDialer() {
+	var d net.Dialer
+	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
+	defer cancel()
+
+	conn, err := d.DialContext(ctx, "tcp", "localhost:12345")
+	if err != nil {
+		log.Fatalf("Failed to dial: %v", err)
+	}
+	defer conn.Close()
+
+	if _, err := conn.Write([]byte("Hello, World!")); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func ExampleIPv4() {
+	fmt.Println(net.IPv4(8, 8, 8, 8))
+
+	// Output:
+	// 8.8.8.8
+}
+
+func ExampleParseCIDR() {
+	ipv4Addr, ipv4Net, err := net.ParseCIDR("192.0.2.1/24")
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println(ipv4Addr)
+	fmt.Println(ipv4Net)
+
+	ipv6Addr, ipv6Net, err := net.ParseCIDR("2001:db8:a0b:12f0::1/32")
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println(ipv6Addr)
+	fmt.Println(ipv6Net)
+
+	// Output:
+	// 192.0.2.1
+	// 192.0.2.0/24
+	// 2001:db8:a0b:12f0::1
+	// 2001:db8::/32
+}
+
+func ExampleParseIP() {
+	fmt.Println(net.ParseIP("192.0.2.1"))
+	fmt.Println(net.ParseIP("2001:db8::68"))
+	fmt.Println(net.ParseIP("192.0.2"))
+
+	// Output:
+	// 192.0.2.1
+	// 2001:db8::68
+	// <nil>
+}
+
+func ExampleIP_DefaultMask() {
+	ip := net.ParseIP("192.0.2.1")
+	fmt.Println(ip.DefaultMask())
+
+	// Output:
+	// ffffff00
+}
+
+func ExampleIP_Mask() {
+	ipv4Addr := net.ParseIP("192.0.2.1")
+	// This mask corresponds to a /24 subnet for IPv4.
+	ipv4Mask := net.CIDRMask(24, 32)
+	fmt.Println(ipv4Addr.Mask(ipv4Mask))
+
+	ipv6Addr := net.ParseIP("2001:db8:a0b:12f0::1")
+	// This mask corresponds to a /32 subnet for IPv6.
+	ipv6Mask := net.CIDRMask(32, 128)
+	fmt.Println(ipv6Addr.Mask(ipv6Mask))
+
+	// Output:
+	// 192.0.2.0
+	// 2001:db8::
+}
+
+func ExampleCIDRMask() {
+	// This mask corresponds to a /31 subnet for IPv4.
+	fmt.Println(net.CIDRMask(31, 32))
+
+	// This mask corresponds to a /64 subnet for IPv6.
+	fmt.Println(net.CIDRMask(64, 128))
+
+	// Output:
+	// fffffffe
+	// ffffffffffffffff0000000000000000
+}
+
+func ExampleIPv4Mask() {
+	fmt.Println(net.IPv4Mask(255, 255, 255, 0))
+
+	// Output:
+	// ffffff00
+}
+
+func ExampleUDPConn_WriteTo() {
+	// Unlike Dial, ListenPacket creates a connection without any
+	// association with peers.
+	conn, err := net.ListenPacket("udp", ":0")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer conn.Close()
+
+	dst, err := net.ResolveUDPAddr("udp", "192.0.2.1:2000")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// The connection can write data to the desired address.
+	_, err = conn.WriteTo([]byte("data"), dst)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
diff --git a/libgo/go/net/fd_unix.go b/libgo/go/net/fd_unix.go
index 286d3f1..117f5a9 100644
--- a/libgo/go/net/fd_unix.go
+++ b/libgo/go/net/fd_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris
 
 package net
 
@@ -96,7 +96,7 @@
 	if err := fd.pfd.Init(fd.net, true); err != nil {
 		return nil, err
 	}
-	if deadline, _ := ctx.Deadline(); !deadline.IsZero() {
+	if deadline, hasDeadline := ctx.Deadline(); hasDeadline {
 		fd.pfd.SetWriteDeadline(deadline)
 		defer fd.pfd.SetWriteDeadline(noDeadline)
 	}
@@ -248,7 +248,7 @@
 		return nil, err
 	}
 	if err = netfd.init(); err != nil {
-		fd.Close()
+		netfd.Close()
 		return nil, err
 	}
 	lsa, _ := syscall.Getsockname(netfd.pfd.Sysfd)
diff --git a/libgo/go/net/file.go b/libgo/go/net/file.go
index 81a44e1..c13332c 100644
--- a/libgo/go/net/file.go
+++ b/libgo/go/net/file.go
@@ -6,7 +6,7 @@
 
 import "os"
 
-// BUG(mikio): On JS, NaCl and Windows, the FileConn, FileListener and
+// BUG(mikio): On JS and Windows, the FileConn, FileListener and
 // FilePacketConn functions are not implemented.
 
 type fileAddr string
diff --git a/libgo/go/net/file_stub.go b/libgo/go/net/file_stub.go
index 2256608..bfb8100 100644
--- a/libgo/go/net/file_stub.go
+++ b/libgo/go/net/file_stub.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl js,wasm
+// +build js,wasm
 
 package net
 
diff --git a/libgo/go/net/file_test.go b/libgo/go/net/file_test.go
index cd71774..8c09c0d 100644
--- a/libgo/go/net/file_test.go
+++ b/libgo/go/net/file_test.go
@@ -31,7 +31,7 @@
 
 func TestFileConn(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -138,7 +138,7 @@
 
 func TestFileListener(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -230,7 +230,7 @@
 
 func TestFilePacketConn(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -297,7 +297,7 @@
 // Issue 24483.
 func TestFileCloseRace(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "plan9", "windows":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !testableNetwork("tcp") {
diff --git a/libgo/go/net/hook_unix.go b/libgo/go/net/hook_unix.go
index aaa6922..780b23c 100644
--- a/libgo/go/net/hook_unix.go
+++ b/libgo/go/net/hook_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package net
 
diff --git a/libgo/go/net/http/npn_test.go b/libgo/go/net/http/alpn_test.go
similarity index 100%
rename from libgo/go/net/http/npn_test.go
rename to libgo/go/net/http/alpn_test.go
diff --git a/libgo/go/net/http/cgi/host_test.go b/libgo/go/net/http/cgi/host_test.go
index 25882de..9f1716b 100644
--- a/libgo/go/net/http/cgi/host_test.go
+++ b/libgo/go/net/http/cgi/host_test.go
@@ -456,6 +456,23 @@
 	runCgiTest(t, h, "GET /test.cgi HTTP/1.0\nHost: example.com\n\n", expectedMap)
 }
 
+func findPerl(t *testing.T) string {
+	t.Helper()
+	perl, err := exec.LookPath("perl")
+	if err != nil {
+		t.Skip("Skipping test: perl not found.")
+	}
+	perl, _ = filepath.Abs(perl)
+
+	cmd := exec.Command(perl, "-e", "print 123")
+	cmd.Env = []string{"PATH=/garbage"}
+	out, err := cmd.Output()
+	if err != nil || string(out) != "123" {
+		t.Skipf("Skipping test: %s is not functional", perl)
+	}
+	return perl
+}
+
 func TestDirWindows(t *testing.T) {
 	if runtime.GOOS != "windows" {
 		t.Skip("Skipping windows specific test.")
@@ -463,13 +480,7 @@
 
 	cgifile, _ := filepath.Abs("testdata/test.cgi")
 
-	var perl string
-	var err error
-	perl, err = exec.LookPath("perl")
-	if err != nil {
-		t.Skip("Skipping test: perl not found.")
-	}
-	perl, _ = filepath.Abs(perl)
+	perl := findPerl(t)
 
 	cwd, _ := os.Getwd()
 	h := &Handler{
@@ -506,13 +517,7 @@
 	check(t)
 	cgifile, _ := filepath.Abs("testdata/test.cgi")
 
-	var perl string
-	var err error
-	perl, err = exec.LookPath("perl")
-	if err != nil {
-		t.Skipf("Skipping test: perl not found.")
-	}
-	perl, _ = filepath.Abs(perl)
+	perl := findPerl(t)
 
 	cwd, _ := os.Getwd()
 	h := &Handler{
diff --git a/libgo/go/net/http/client.go b/libgo/go/net/http/client.go
index 65a9d51..6a8c59a 100644
--- a/libgo/go/net/http/client.go
+++ b/libgo/go/net/http/client.go
@@ -10,6 +10,7 @@
 package http
 
 import (
+	"context"
 	"crypto/tls"
 	"encoding/base64"
 	"errors"
@@ -18,6 +19,7 @@
 	"io/ioutil"
 	"log"
 	"net/url"
+	"reflect"
 	"sort"
 	"strings"
 	"sync"
@@ -238,7 +240,7 @@
 		username := u.Username()
 		password, _ := u.Password()
 		forkReq()
-		req.Header = ireq.Header.Clone()
+		req.Header = cloneOrMakeHeader(ireq.Header)
 		req.Header.Set("Authorization", "Basic "+basicAuth(username, password))
 	}
 
@@ -273,46 +275,95 @@
 	return resp, nil, nil
 }
 
-// setRequestCancel sets the Cancel field of req, if deadline is
-// non-zero. The RoundTripper's type is used to determine whether the legacy
-// CancelRequest behavior should be used.
+// timeBeforeContextDeadline reports whether the non-zero Time t is
+// before ctx's deadline, if any. If ctx does not have a deadline, it
+// always reports true (the deadline is considered infinite).
+func timeBeforeContextDeadline(t time.Time, ctx context.Context) bool {
+	d, ok := ctx.Deadline()
+	if !ok {
+		return true
+	}
+	return t.Before(d)
+}
+
+// knownRoundTripperImpl reports whether rt is a RoundTripper that's
+// maintained by the Go team and known to implement the latest
+// optional semantics (notably contexts).
+func knownRoundTripperImpl(rt RoundTripper) bool {
+	switch rt.(type) {
+	case *Transport, *http2Transport:
+		return true
+	}
+	// There's a very minor chance of a false positive with this.
+	// Insted of detecting our golang.org/x/net/http2.Transport,
+	// it might detect a Transport type in a different http2
+	// package. But I know of none, and the only problem would be
+	// some temporarily leaked goroutines if the transport didn't
+	// support contexts. So this is a good enough heuristic:
+	if reflect.TypeOf(rt).String() == "*http2.Transport" {
+		return true
+	}
+	return false
+}
+
+// setRequestCancel sets req.Cancel and adds a deadline context to req
+// if deadline is non-zero. The RoundTripper's type is used to
+// determine whether the legacy CancelRequest behavior should be used.
 //
 // As background, there are three ways to cancel a request:
 // First was Transport.CancelRequest. (deprecated)
-// Second was Request.Cancel (this mechanism).
+// Second was Request.Cancel.
 // Third was Request.Context.
+// This function populates the second and third, and uses the first if it really needs to.
 func setRequestCancel(req *Request, rt RoundTripper, deadline time.Time) (stopTimer func(), didTimeout func() bool) {
 	if deadline.IsZero() {
 		return nop, alwaysFalse
 	}
+	knownTransport := knownRoundTripperImpl(rt)
+	oldCtx := req.Context()
 
+	if req.Cancel == nil && knownTransport {
+		// If they already had a Request.Context that's
+		// expiring sooner, do nothing:
+		if !timeBeforeContextDeadline(deadline, oldCtx) {
+			return nop, alwaysFalse
+		}
+
+		var cancelCtx func()
+		req.ctx, cancelCtx = context.WithDeadline(oldCtx, deadline)
+		return cancelCtx, func() bool { return time.Now().After(deadline) }
+	}
 	initialReqCancel := req.Cancel // the user's original Request.Cancel, if any
 
+	var cancelCtx func()
+	if oldCtx := req.Context(); timeBeforeContextDeadline(deadline, oldCtx) {
+		req.ctx, cancelCtx = context.WithDeadline(oldCtx, deadline)
+	}
+
 	cancel := make(chan struct{})
 	req.Cancel = cancel
 
 	doCancel := func() {
-		// The newer way (the second way in the func comment):
+		// The second way in the func comment above:
 		close(cancel)
-
-		// The legacy compatibility way, used only
-		// for RoundTripper implementations written
-		// before Go 1.5 or Go 1.6.
-		type canceler interface {
-			CancelRequest(*Request)
-		}
-		switch v := rt.(type) {
-		case *Transport, *http2Transport:
-			// Do nothing. The net/http package's transports
-			// support the new Request.Cancel channel
-		case canceler:
+		// The first way, used only for RoundTripper
+		// implementations written before Go 1.5 or Go 1.6.
+		type canceler interface{ CancelRequest(*Request) }
+		if v, ok := rt.(canceler); ok {
 			v.CancelRequest(req)
 		}
 	}
 
 	stopTimerCh := make(chan struct{})
 	var once sync.Once
-	stopTimer = func() { once.Do(func() { close(stopTimerCh) }) }
+	stopTimer = func() {
+		once.Do(func() {
+			close(stopTimerCh)
+			if cancelCtx != nil {
+				cancelCtx()
+			}
+		})
+	}
 
 	timer := time.NewTimer(time.Until(deadline))
 	var timedOut atomicBool
@@ -383,8 +434,8 @@
 // An error is returned if the Client's CheckRedirect function fails
 // or if there was an HTTP protocol error. A non-2xx response doesn't
 // cause an error. Any returned error will be of type *url.Error. The
-// url.Error value's Timeout method will report true if request timed
-// out or was canceled.
+// url.Error value's Timeout method will report true if the request
+// timed out.
 //
 // When err is nil, resp always contains a non-nil resp.Body.
 // Caller should close resp.Body when done reading from it.
@@ -668,7 +719,7 @@
 	// The headers to copy are from the very initial request.
 	// We use a closured callback to keep a reference to these original headers.
 	var (
-		ireqhdr  = ireq.Header.Clone()
+		ireqhdr  = cloneOrMakeHeader(ireq.Header)
 		icookies map[string][]*Cookie
 	)
 	if c.Jar != nil && ireq.Header.Get("Cookie") != "" {
@@ -870,8 +921,7 @@
 	}
 	if b.reqDidTimeout() {
 		err = &httpError{
-			// TODO: early in cycle: s/Client.Timeout exceeded/timeout or context cancellation/
-			err:     err.Error() + " (Client.Timeout exceeded while reading body)",
+			err:     err.Error() + " (Client.Timeout or context cancellation while reading body)",
 			timeout: true,
 		}
 	}
diff --git a/libgo/go/net/http/client_test.go b/libgo/go/net/http/client_test.go
index de490bc..2b4f53f 100644
--- a/libgo/go/net/http/client_test.go
+++ b/libgo/go/net/http/client_test.go
@@ -221,27 +221,27 @@
 
 	c := ts.Client()
 	_, err := c.Get(ts.URL)
-	if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
+	if e, g := `Get "/?n=10": stopped after 10 redirects`, fmt.Sprintf("%v", err); e != g {
 		t.Errorf("with default client Get, expected error %q, got %q", e, g)
 	}
 
 	// HEAD request should also have the ability to follow redirects.
 	_, err = c.Head(ts.URL)
-	if e, g := "Head /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
+	if e, g := `Head "/?n=10": stopped after 10 redirects`, fmt.Sprintf("%v", err); e != g {
 		t.Errorf("with default client Head, expected error %q, got %q", e, g)
 	}
 
 	// Do should also follow redirects.
 	greq, _ := NewRequest("GET", ts.URL, nil)
 	_, err = c.Do(greq)
-	if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
+	if e, g := `Get "/?n=10": stopped after 10 redirects`, fmt.Sprintf("%v", err); e != g {
 		t.Errorf("with default client Do, expected error %q, got %q", e, g)
 	}
 
 	// Requests with an empty Method should also redirect (Issue 12705)
 	greq.Method = ""
 	_, err = c.Do(greq)
-	if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
+	if e, g := `Get "/?n=10": stopped after 10 redirects`, fmt.Sprintf("%v", err); e != g {
 		t.Errorf("with default client Do and empty Method, expected error %q, got %q", e, g)
 	}
 
@@ -1172,22 +1172,22 @@
 		{
 			desc: "Strip password from error message",
 			in:   "http://user:password@dummy.faketld/",
-			out:  "Get http://user:***@dummy.faketld/: dummy impl",
+			out:  `Get "http://user:***@dummy.faketld/": dummy impl`,
 		},
 		{
 			desc: "Don't Strip password from domain name",
 			in:   "http://user:password@password.faketld/",
-			out:  "Get http://user:***@password.faketld/: dummy impl",
+			out:  `Get "http://user:***@password.faketld/": dummy impl`,
 		},
 		{
 			desc: "Don't Strip password from path",
 			in:   "http://user:password@dummy.faketld/password",
-			out:  "Get http://user:***@dummy.faketld/password: dummy impl",
+			out:  `Get "http://user:***@dummy.faketld/password": dummy impl`,
 		},
 		{
 			desc: "Strip escaped password",
 			in:   "http://user:pa%2Fssword@dummy.faketld/",
-			out:  "Get http://user:***@dummy.faketld/: dummy impl",
+			out:  `Get "http://user:***@dummy.faketld/": dummy impl`,
 		},
 	}
 	for _, tC := range testCases {
@@ -1274,7 +1274,7 @@
 		} else if !ne.Timeout() {
 			t.Errorf("net.Error.Timeout = false; want true")
 		}
-		if got := ne.Error(); !strings.Contains(got, "Client.Timeout exceeded") {
+		if got := ne.Error(); !strings.Contains(got, "(Client.Timeout") {
 			t.Errorf("error string = %q; missing timeout substring", got)
 		}
 	case <-time.After(failTime):
@@ -1917,3 +1917,77 @@
 		t.Error("not closed")
 	}
 }
+
+func TestClientPropagatesTimeoutToContext(t *testing.T) {
+	errDial := errors.New("not actually dialing")
+	c := &Client{
+		Timeout: 5 * time.Second,
+		Transport: &Transport{
+			DialContext: func(ctx context.Context, netw, addr string) (net.Conn, error) {
+				deadline, ok := ctx.Deadline()
+				if !ok {
+					t.Error("no deadline")
+				} else {
+					t.Logf("deadline in %v", deadline.Sub(time.Now()).Round(time.Second/10))
+				}
+				return nil, errDial
+			},
+		},
+	}
+	c.Get("https://example.tld/")
+}
+
+func TestClientDoCanceledVsTimeout_h1(t *testing.T) {
+	testClientDoCanceledVsTimeout(t, h1Mode)
+}
+
+func TestClientDoCanceledVsTimeout_h2(t *testing.T) {
+	testClientDoCanceledVsTimeout(t, h2Mode)
+}
+
+// Issue 33545: lock-in the behavior promised by Client.Do's
+// docs about request cancelation vs timing out.
+func testClientDoCanceledVsTimeout(t *testing.T, h2 bool) {
+	defer afterTest(t)
+	cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
+		w.Write([]byte("Hello, World!"))
+	}))
+	defer cst.close()
+
+	cases := []string{"timeout", "canceled"}
+
+	for _, name := range cases {
+		t.Run(name, func(t *testing.T) {
+			var ctx context.Context
+			var cancel func()
+			if name == "timeout" {
+				ctx, cancel = context.WithTimeout(context.Background(), -time.Nanosecond)
+			} else {
+				ctx, cancel = context.WithCancel(context.Background())
+				cancel()
+			}
+			defer cancel()
+
+			req, _ := NewRequestWithContext(ctx, "GET", cst.ts.URL, nil)
+			_, err := cst.c.Do(req)
+			if err == nil {
+				t.Fatal("Unexpectedly got a nil error")
+			}
+
+			ue := err.(*url.Error)
+
+			var wantIsTimeout bool
+			var wantErr error = context.Canceled
+			if name == "timeout" {
+				wantErr = context.DeadlineExceeded
+				wantIsTimeout = true
+			}
+			if g, w := ue.Timeout(), wantIsTimeout; g != w {
+				t.Fatalf("url.Timeout() = %t, want %t", g, w)
+			}
+			if g, w := ue.Err, wantErr; g != w {
+				t.Errorf("url.Error.Err = %v; want %v", g, w)
+			}
+		})
+	}
+}
diff --git a/libgo/go/net/http/clientserver_test.go b/libgo/go/net/http/clientserver_test.go
index ee48fb0..70bcd0e 100644
--- a/libgo/go/net/http/clientserver_test.go
+++ b/libgo/go/net/http/clientserver_test.go
@@ -76,7 +76,16 @@
 	ts.Config.ErrorLog = quietLog
 }
 
+func optWithServerLog(lg *log.Logger) func(*httptest.Server) {
+	return func(ts *httptest.Server) {
+		ts.Config.ErrorLog = lg
+	}
+}
+
 func newClientServerTest(t *testing.T, h2 bool, h Handler, opts ...interface{}) *clientServerTest {
+	if h2 {
+		CondSkipHTTP2(t)
+	}
 	cst := &clientServerTest{
 		t:  t,
 		h2: h2,
diff --git a/libgo/go/net/http/clone.go b/libgo/go/net/http/clone.go
index 5f2784d..3a3375b 100644
--- a/libgo/go/net/http/clone.go
+++ b/libgo/go/net/http/clone.go
@@ -62,3 +62,13 @@
 	fh2.Header = textproto.MIMEHeader(Header(fh.Header).Clone())
 	return fh2
 }
+
+// cloneOrMakeHeader invokes Header.Clone but if the
+// result is nil, it'll instead make and return a non-nil Header.
+func cloneOrMakeHeader(hdr Header) Header {
+	clone := hdr.Clone()
+	if clone == nil {
+		clone = make(Header)
+	}
+	return clone
+}
diff --git a/libgo/go/net/http/cookie.go b/libgo/go/net/http/cookie.go
index 91ff544..5c572d6 100644
--- a/libgo/go/net/http/cookie.go
+++ b/libgo/go/net/http/cookie.go
@@ -353,6 +353,7 @@
 	return cookieNameSanitizer.Replace(n)
 }
 
+// sanitizeCookieValue produces a suitable cookie-value from v.
 // https://tools.ietf.org/html/rfc6265#section-4.1.1
 // cookie-value      = *cookie-octet / ( DQUOTE *cookie-octet DQUOTE )
 // cookie-octet      = %x21 / %x23-2B / %x2D-3A / %x3C-5B / %x5D-7E
@@ -360,8 +361,8 @@
 //           ; whitespace DQUOTE, comma, semicolon,
 //           ; and backslash
 // We loosen this as spaces and commas are common in cookie values
-// but we produce a quoted cookie-value in when value starts or ends
-// with a comma or space.
+// but we produce a quoted cookie-value if and only if v contains
+// commas or spaces.
 // See https://golang.org/issue/7243 for the discussion.
 func sanitizeCookieValue(v string) string {
 	v = sanitizeOrWarn("Cookie.Value", validCookieValueByte, v)
diff --git a/libgo/go/net/http/export_test.go b/libgo/go/net/http/export_test.go
index d265cd3..657ff9d 100644
--- a/libgo/go/net/http/export_test.go
+++ b/libgo/go/net/http/export_test.go
@@ -60,6 +60,12 @@
 	}
 }
 
+func CondSkipHTTP2(t *testing.T) {
+	if omitBundledHTTP2 {
+		t.Skip("skipping HTTP/2 test when nethttpomithttp2 build tag in use")
+	}
+}
+
 var (
 	SetEnterRoundTripHook = hookSetter(&testHookEnterRoundTrip)
 	SetRoundTripRetried   = hookSetter(&testHookRoundTripRetried)
@@ -208,6 +214,30 @@
 	}) == nil
 }
 
+// PutIdleTestConnH2 reports whether it was able to insert a fresh
+// HTTP/2 persistConn for scheme, addr into the idle connection pool.
+func (t *Transport) PutIdleTestConnH2(scheme, addr string, alt RoundTripper) bool {
+	key := connectMethodKey{"", scheme, addr, false}
+
+	if t.MaxConnsPerHost > 0 {
+		// Transport is tracking conns-per-host.
+		// Increment connection count to account
+		// for new persistConn created below.
+		t.connsPerHostMu.Lock()
+		if t.connsPerHost == nil {
+			t.connsPerHost = make(map[connectMethodKey]int)
+		}
+		t.connsPerHost[key]++
+		t.connsPerHostMu.Unlock()
+	}
+
+	return t.tryPutIdleConn(&persistConn{
+		t:        t,
+		alt:      alt,
+		cacheKey: key,
+	}) == nil
+}
+
 // All test hooks must be non-nil so they can be called directly,
 // but the tests use nil to mean hook disabled.
 func unnilTestHook(f *func()) {
diff --git a/libgo/go/net/http/fs.go b/libgo/go/net/http/fs.go
index 41d46dc..d214485 100644
--- a/libgo/go/net/http/fs.go
+++ b/libgo/go/net/http/fs.go
@@ -384,15 +384,18 @@
 	if ius == "" || isZeroTime(modtime) {
 		return condNone
 	}
-	if t, err := ParseTime(ius); err == nil {
-		// The Date-Modified header truncates sub-second precision, so
-		// use mtime < t+1s instead of mtime <= t to check for unmodified.
-		if modtime.Before(t.Add(1 * time.Second)) {
-			return condTrue
-		}
-		return condFalse
+	t, err := ParseTime(ius)
+	if err != nil {
+		return condNone
 	}
-	return condNone
+
+	// The Last-Modified header truncates sub-second precision so
+	// the modtime needs to be truncated too.
+	modtime = modtime.Truncate(time.Second)
+	if modtime.Before(t) || modtime.Equal(t) {
+		return condTrue
+	}
+	return condFalse
 }
 
 func checkIfNoneMatch(w ResponseWriter, r *Request) condResult {
@@ -436,9 +439,10 @@
 	if err != nil {
 		return condNone
 	}
-	// The Date-Modified header truncates sub-second precision, so
-	// use mtime < t+1s instead of mtime <= t to check for unmodified.
-	if modtime.Before(t.Add(1 * time.Second)) {
+	// The Last-Modified header truncates sub-second precision so
+	// the modtime needs to be truncated too.
+	modtime = modtime.Truncate(time.Second)
+	if modtime.Before(t) || modtime.Equal(t) {
 		return condFalse
 	}
 	return condTrue
@@ -582,17 +586,15 @@
 		}
 	}
 
-	// redirect if the directory name doesn't end in a slash
 	if d.IsDir() {
 		url := r.URL.Path
-		if url[len(url)-1] != '/' {
+		// redirect if the directory name doesn't end in a slash
+		if url == "" || url[len(url)-1] != '/' {
 			localRedirect(w, r, path.Base(url)+"/")
 			return
 		}
-	}
 
-	// use contents of index.html for directory, if present
-	if d.IsDir() {
+		// use contents of index.html for directory, if present
 		index := strings.TrimSuffix(name, "/") + indexPage
 		ff, err := fs.Open(index)
 		if err == nil {
@@ -612,7 +614,7 @@
 			writeNotModified(w)
 			return
 		}
-		w.Header().Set("Last-Modified", d.ModTime().UTC().Format(TimeFormat))
+		setLastModified(w, d.ModTime())
 		dirList(w, r, f)
 		return
 	}
diff --git a/libgo/go/net/http/fs_test.go b/libgo/go/net/http/fs_test.go
index 82e13a4..435e34b 100644
--- a/libgo/go/net/http/fs_test.go
+++ b/libgo/go/net/http/fs_test.go
@@ -207,6 +207,18 @@
 	}
 }
 
+// Tests that this doesn't panic. (Issue 30165)
+func TestServeFileDirPanicEmptyPath(t *testing.T) {
+	rec := httptest.NewRecorder()
+	req := httptest.NewRequest("GET", "/", nil)
+	req.URL.Path = ""
+	ServeFile(rec, req, "testdata")
+	res := rec.Result()
+	if res.StatusCode != 301 {
+		t.Errorf("code = %v; want 301", res.Status)
+	}
+}
+
 var fsRedirectTestData = []struct {
 	original, redirect string
 }{
@@ -1110,21 +1122,13 @@
 	}
 	defer ln.Close()
 
-	syscalls := "sendfile,sendfile64"
-	switch runtime.GOARCH {
-	case "mips64", "mips64le", "s390x", "alpha":
-		// strace on the above platforms doesn't support sendfile64
-		// and will error out if we specify that with `-e trace='.
-		syscalls = "sendfile"
-	}
-
 	// Attempt to run strace, and skip on failure - this test requires SYS_PTRACE.
-	if err := exec.Command("strace", "-f", "-q", "-e", "trace="+syscalls, os.Args[0], "-test.run=^$").Run(); err != nil {
+	if err := exec.Command("strace", "-f", "-q", os.Args[0], "-test.run=^$").Run(); err != nil {
 		t.Skipf("skipping; failed to run strace: %v", err)
 	}
 
 	var buf bytes.Buffer
-	child := exec.Command("strace", "-f", "-q", "-e", "trace="+syscalls, os.Args[0], "-test.run=TestLinuxSendfileChild")
+	child := exec.Command("strace", "-f", "-q", os.Args[0], "-test.run=TestLinuxSendfileChild")
 	child.ExtraFiles = append(child.ExtraFiles, lnf)
 	child.Env = append([]string{"GO_WANT_HELPER_PROCESS=1"}, os.Environ()...)
 	child.Stdout = &buf
@@ -1147,7 +1151,7 @@
 	Post(fmt.Sprintf("http://%s/quit", ln.Addr()), "", nil)
 	child.Wait()
 
-	rx := regexp.MustCompile(`sendfile(64)?\(`)
+	rx := regexp.MustCompile(`\b(n64:)?sendfile(64)?\(`)
 	out := buf.String()
 	if !rx.MatchString(out) {
 		t.Errorf("no sendfile system call found in:\n%s", out)
diff --git a/libgo/go/net/http/h2_bundle.go b/libgo/go/net/http/h2_bundle.go
index 21921ab..f03dbba 100644
--- a/libgo/go/net/http/h2_bundle.go
+++ b/libgo/go/net/http/h2_bundle.go
@@ -1,5 +1,7 @@
+// +build !nethttpomithttp2
+
 // Code generated by golang.org/x/tools/cmd/bundle. DO NOT EDIT.
-//go:generate bundle -o h2_bundle.go -prefix http2 golang.org/x/net/http2
+//   $ bundle -o=h2_bundle.go -prefix=http2 -tags=!nethttpomithttp2 golang.org/x/net/http2
 
 // Package http2 implements the HTTP/2 protocol.
 //
@@ -3465,6 +3467,7 @@
 	mu       sync.Mutex
 	c        sync.Cond       // c.L lazily initialized to &p.mu
 	b        http2pipeBuffer // nil when done reading
+	unread   int             // bytes unread when done
 	err      error           // read error once empty. non-nil means closed.
 	breakErr error           // immediate read error (caller doesn't see rest of b)
 	donec    chan struct{}   // closed on error
@@ -3481,7 +3484,7 @@
 	p.mu.Lock()
 	defer p.mu.Unlock()
 	if p.b == nil {
-		return 0
+		return p.unread
 	}
 	return p.b.Len()
 }
@@ -3528,6 +3531,7 @@
 		return 0, http2errClosedPipeWrite
 	}
 	if p.breakErr != nil {
+		p.unread += len(d)
 		return len(d), nil // discard when there is no reader
 	}
 	return p.b.Write(d)
@@ -3565,6 +3569,9 @@
 	}
 	p.readFn = fn
 	if dst == &p.breakErr {
+		if p.b != nil {
+			p.unread += p.b.Len()
+		}
 		p.b = nil
 	}
 	*dst = err
@@ -3811,7 +3818,7 @@
 			}
 		}
 		if !haveRequired {
-			return fmt.Errorf("http2: TLSConfig.CipherSuites is missing an HTTP/2-required AES_128_GCM_SHA256 cipher.")
+			return fmt.Errorf("http2: TLSConfig.CipherSuites is missing an HTTP/2-required AES_128_GCM_SHA256 cipher (need at least one of TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 or TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256).")
 		}
 	}
 
@@ -3881,7 +3888,7 @@
 }
 
 func (o *http2ServeConnOpts) context() context.Context {
-	if o.Context != nil {
+	if o != nil && o.Context != nil {
 		return o.Context
 	}
 	return context.Background()
@@ -5979,7 +5986,11 @@
 			clen = strconv.Itoa(len(p))
 		}
 		_, hasContentType := rws.snapHeader["Content-Type"]
-		if !hasContentType && http2bodyAllowedForStatus(rws.status) && len(p) > 0 {
+		// If the Content-Encoding is non-blank, we shouldn't
+		// sniff the body. See Issue golang.org/issue/31753.
+		ce := rws.snapHeader.Get("Content-Encoding")
+		hasCE := len(ce) > 0
+		if !hasCE && !hasContentType && http2bodyAllowedForStatus(rws.status) && len(p) > 0 {
 			ctype = DetectContentType(p)
 		}
 		var date string
@@ -6088,7 +6099,7 @@
 // trailers. That worked for a while, until we found the first major
 // user of Trailers in the wild: gRPC (using them only over http2),
 // and gRPC libraries permit setting trailers mid-stream without
-// predeclarnig them. So: change of plans. We still permit the old
+// predeclaring them. So: change of plans. We still permit the old
 // way, but we also permit this hack: if a Header() key begins with
 // "Trailer:", the suffix of that key is a Trailer. Because ':' is an
 // invalid token byte anyway, there is no ambiguity. (And it's already
@@ -6388,7 +6399,7 @@
 	// PUSH_PROMISE frames MUST only be sent on a peer-initiated stream that
 	// is in either the "open" or "half-closed (remote)" state.
 	if msg.parent.state != http2stateOpen && msg.parent.state != http2stateHalfClosedRemote {
-		// responseWriter.Push checks that the stream is peer-initiaed.
+		// responseWriter.Push checks that the stream is peer-initiated.
 		msg.done <- http2errStreamClosed
 		return
 	}
@@ -6715,6 +6726,7 @@
 	br              *bufio.Reader
 	fr              *http2Framer
 	lastActive      time.Time
+	lastIdle        time.Time // time last idle
 	// Settings from peer: (also guarded by mu)
 	maxFrameSize          uint32
 	maxConcurrentStreams  uint32
@@ -7092,7 +7104,7 @@
 }
 
 func (t *http2Transport) NewClientConn(c net.Conn) (*http2ClientConn, error) {
-	return t.newClientConn(c, false)
+	return t.newClientConn(c, t.disableKeepAlives())
 }
 
 func (t *http2Transport) newClientConn(c net.Conn, singleUse bool) (*http2ClientConn, error) {
@@ -7225,7 +7237,8 @@
 	}
 
 	st.canTakeNewRequest = cc.goAway == nil && !cc.closed && !cc.closing && maxConcurrentOkay &&
-		int64(cc.nextStreamID)+2*int64(cc.pendingRequests) < math.MaxInt32
+		int64(cc.nextStreamID)+2*int64(cc.pendingRequests) < math.MaxInt32 &&
+		!cc.tooIdleLocked()
 	st.freshConn = cc.nextStreamID == 1 && st.canTakeNewRequest
 	return
 }
@@ -7235,6 +7248,16 @@
 	return st.canTakeNewRequest
 }
 
+// tooIdleLocked reports whether this connection has been been sitting idle
+// for too much wall time.
+func (cc *http2ClientConn) tooIdleLocked() bool {
+	// The Round(0) strips the monontonic clock reading so the
+	// times are compared based on their wall time. We don't want
+	// to reuse a connection that's been sitting idle during
+	// VM/laptop suspend if monotonic time was also frozen.
+	return cc.idleTimeout != 0 && !cc.lastIdle.IsZero() && time.Since(cc.lastIdle.Round(0)) > cc.idleTimeout
+}
+
 // onIdleTimeout is called from a time.AfterFunc goroutine. It will
 // only be called when we're idle, but because we're coming from a new
 // goroutine, there could be a new request coming in at the same time,
@@ -7654,6 +7677,7 @@
 			}
 			return http2errClientConnUnusable
 		}
+		cc.lastIdle = time.Time{}
 		if int64(len(cc.streams))+1 <= int64(cc.maxConcurrentStreams) {
 			if waitingForConn != nil {
 				close(waitingForConn)
@@ -7720,6 +7744,8 @@
 
 	// abort request body write, but send stream reset of cancel.
 	http2errStopReqBodyWriteAndCancel = errors.New("http2: canceling request")
+
+	http2errReqBodyTooLong = errors.New("http2: request body larger than specified content length")
 )
 
 func (cs *http2clientStream) writeRequestBody(body io.Reader, bodyCloser io.Closer) (err error) {
@@ -7742,10 +7768,32 @@
 
 	req := cs.req
 	hasTrailers := req.Trailer != nil
+	remainLen := http2actualContentLength(req)
+	hasContentLen := remainLen != -1
 
 	var sawEOF bool
 	for !sawEOF {
-		n, err := body.Read(buf)
+		n, err := body.Read(buf[:len(buf)-1])
+		if hasContentLen {
+			remainLen -= int64(n)
+			if remainLen == 0 && err == nil {
+				// The request body's Content-Length was predeclared and
+				// we just finished reading it all, but the underlying io.Reader
+				// returned the final chunk with a nil error (which is one of
+				// the two valid things a Reader can do at EOF). Because we'd prefer
+				// to send the END_STREAM bit early, double-check that we're actually
+				// at EOF. Subsequent reads should return (0, EOF) at this point.
+				// If either value is different, we return an error in one of two ways below.
+				var n1 int
+				n1, err = body.Read(buf[n:])
+				remainLen -= int64(n1)
+			}
+			if remainLen < 0 {
+				err = http2errReqBodyTooLong
+				cc.writeStreamReset(cs.ID, http2ErrCodeCancel, err)
+				return err
+			}
+		}
 		if err == io.EOF {
 			sawEOF = true
 			err = nil
@@ -7958,7 +8006,29 @@
 				if vv[0] == "" {
 					continue
 				}
-
+			} else if strings.EqualFold(k, "cookie") {
+				// Per 8.1.2.5 To allow for better compression efficiency, the
+				// Cookie header field MAY be split into separate header fields,
+				// each with one or more cookie-pairs.
+				for _, v := range vv {
+					for {
+						p := strings.IndexByte(v, ';')
+						if p < 0 {
+							break
+						}
+						f("cookie", v[:p])
+						p++
+						// strip space after semicolon if any.
+						for p+1 <= len(v) && v[p] == ' ' {
+							p++
+						}
+						v = v[p:]
+					}
+					if len(v) > 0 {
+						f("cookie", v)
+					}
+				}
+				continue
 			}
 
 			for _, v := range vv {
@@ -8096,6 +8166,7 @@
 		delete(cc.streams, id)
 		if len(cc.streams) == 0 && cc.idleTimer != nil {
 			cc.idleTimer.Reset(cc.idleTimeout)
+			cc.lastIdle = time.Now()
 		}
 		close(cs.done)
 		// Wake up checkResetOrDone via clientStream.awaitFlowControl and
@@ -9846,7 +9917,7 @@
 }
 
 // walkReadyInOrder iterates over the tree in priority order, calling f for each node
-// with a non-empty write queue. When f returns true, this funcion returns true and the
+// with a non-empty write queue. When f returns true, this function returns true and the
 // walk halts. tmp is used as scratch space for sorting.
 //
 // f(n, openParent) takes two arguments: the node to visit, n, and a bool that is true
@@ -10163,7 +10234,8 @@
 	zero http2writeQueue
 
 	// sq contains the stream-specific queues, keyed by stream ID.
-	// When a stream is idle or closed, it's deleted from the map.
+	// When a stream is idle, closed, or emptied, it's deleted
+	// from the map.
 	sq map[uint32]*http2writeQueue
 
 	// pool of empty queues for reuse.
@@ -10207,8 +10279,12 @@
 		return ws.zero.shift(), true
 	}
 	// Iterate over all non-idle streams until finding one that can be consumed.
-	for _, q := range ws.sq {
+	for streamID, q := range ws.sq {
 		if wr, ok := q.consume(math.MaxInt32); ok {
+			if q.empty() {
+				delete(ws.sq, streamID)
+				ws.queuePool.put(q)
+			}
 			return wr, true
 		}
 	}
diff --git a/libgo/go/net/http/header.go b/libgo/go/net/http/header.go
index 230ca03..b9b5391 100644
--- a/libgo/go/net/http/header.go
+++ b/libgo/go/net/http/header.go
@@ -40,13 +40,21 @@
 // Get gets the first value associated with the given key. If
 // there are no values associated with the key, Get returns "".
 // It is case insensitive; textproto.CanonicalMIMEHeaderKey is
-// used to canonicalize the provided key. To access multiple
-// values of a key, or to use non-canonical keys, access the
-// map directly.
+// used to canonicalize the provided key. To use non-canonical keys,
+// access the map directly.
 func (h Header) Get(key string) string {
 	return textproto.MIMEHeader(h).Get(key)
 }
 
+// Values returns all values associated with the given key.
+// It is case insensitive; textproto.CanonicalMIMEHeaderKey is
+// used to canonicalize the provided key. To use non-canonical
+// keys, access the map directly.
+// The returned slice is not a copy.
+func (h Header) Values(key string) []string {
+	return textproto.MIMEHeader(h).Values(key)
+}
+
 // get is like Get, but key must already be in CanonicalHeaderKey form.
 func (h Header) get(key string) string {
 	if v := h[key]; len(v) > 0 {
@@ -170,6 +178,7 @@
 
 // WriteSubset writes a header in wire format.
 // If exclude is not nil, keys where exclude[key] == true are not written.
+// Keys are not canonicalized before checking the exclude map.
 func (h Header) WriteSubset(w io.Writer, exclude map[string]bool) error {
 	return h.writeSubset(w, exclude, nil)
 }
diff --git a/libgo/go/net/http/header_test.go b/libgo/go/net/http/header_test.go
index a82504a..ad8ab9b 100644
--- a/libgo/go/net/http/header_test.go
+++ b/libgo/go/net/http/header_test.go
@@ -7,6 +7,7 @@
 import (
 	"bytes"
 	"internal/race"
+	"reflect"
 	"runtime"
 	"testing"
 	"time"
@@ -220,3 +221,34 @@
 		t.Errorf("allocs = %g; want 0", n)
 	}
 }
+
+// Issue 34878: test that every call to
+// cloneOrMakeHeader never returns a nil Header.
+func TestCloneOrMakeHeader(t *testing.T) {
+	tests := []struct {
+		name     string
+		in, want Header
+	}{
+		{"nil", nil, Header{}},
+		{"empty", Header{}, Header{}},
+		{
+			name: "non-empty",
+			in:   Header{"foo": {"bar"}},
+			want: Header{"foo": {"bar"}},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := cloneOrMakeHeader(tt.in)
+			if got == nil {
+				t.Fatal("unexpected nil Header")
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Fatalf("Got:  %#v\nWant: %#v", got, tt.want)
+			}
+			got.Add("A", "B")
+			got.Get("A")
+		})
+	}
+}
diff --git a/libgo/go/net/http/http.go b/libgo/go/net/http/http.go
index 3510fe6..89e86d8 100644
--- a/libgo/go/net/http/http.go
+++ b/libgo/go/net/http/http.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:generate bundle -o=h2_bundle.go -prefix=http2 -tags=!nethttpomithttp2 golang.org/x/net/http2
+
 package http
 
 import (
@@ -22,6 +24,11 @@
 // immediate cancellation of network operations.
 var aLongTimeAgo = time.Unix(1, 0)
 
+// omitBundledHTTP2 is set by omithttp2.go when the nethttpomithttp2
+// build tag is set. That means h2_bundle.go isn't compiled in and we
+// shouldn't try to use it.
+var omitBundledHTTP2 bool
+
 // TODO(bradfitz): move common stuff here. The other files have accumulated
 // generic http stuff in random places.
 
diff --git a/libgo/go/net/http/http_test.go b/libgo/go/net/http/http_test.go
index 8f466bb..f4ea52d 100644
--- a/libgo/go/net/http/http_test.go
+++ b/libgo/go/net/http/http_test.go
@@ -9,6 +9,7 @@
 import (
 	"bytes"
 	"internal/testenv"
+	"net/url"
 	"os/exec"
 	"reflect"
 	"testing"
@@ -109,3 +110,54 @@
 		}
 	}
 }
+
+// Tests that the nethttpomithttp2 build tag doesn't rot too much,
+// even if there's not a regular builder on it.
+func TestOmitHTTP2(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping in short mode")
+	}
+	t.Parallel()
+	goTool := testenv.GoToolPath(t)
+	out, err := exec.Command(goTool, "test", "-short", "-tags=nethttpomithttp2", "net/http").CombinedOutput()
+	if err != nil {
+		t.Fatalf("go test -short failed: %v, %s", err, out)
+	}
+}
+
+// Tests that the nethttpomithttp2 build tag at least type checks
+// in short mode.
+// The TestOmitHTTP2 test above actually runs tests (in long mode).
+func TestOmitHTTP2Vet(t *testing.T) {
+	t.Parallel()
+	goTool := testenv.GoToolPath(t)
+	out, err := exec.Command(goTool, "vet", "-tags=nethttpomithttp2", "net/http").CombinedOutput()
+	if err != nil {
+		t.Fatalf("go vet failed: %v, %s", err, out)
+	}
+}
+
+var valuesCount int
+
+func BenchmarkCopyValues(b *testing.B) {
+	b.ReportAllocs()
+	src := url.Values{
+		"a": {"1", "2", "3", "4", "5"},
+		"b": {"2", "2", "3", "4", "5"},
+		"c": {"3", "2", "3", "4", "5"},
+		"d": {"4", "2", "3", "4", "5"},
+		"e": {"1", "1", "2", "3", "4", "5", "6", "7", "abcdef", "l", "a", "b", "c", "d", "z"},
+		"j": {"1", "2"},
+		"m": nil,
+	}
+	for i := 0; i < b.N; i++ {
+		dst := url.Values{"a": {"b"}, "b": {"2"}, "c": {"3"}, "d": {"4"}, "j": nil, "m": {"x"}}
+		copyValues(dst, src)
+		if valuesCount = len(dst["a"]); valuesCount != 6 {
+			b.Fatalf(`%d items in dst["a"] but expected 6`, valuesCount)
+		}
+	}
+	if valuesCount == 0 {
+		b.Fatal("Benchmark wasn't run")
+	}
+}
diff --git a/libgo/go/net/http/httptest/example_test.go b/libgo/go/net/http/httptest/example_test.go
new file mode 100644
index 0000000..54e77db
--- /dev/null
+++ b/libgo/go/net/http/httptest/example_test.go
@@ -0,0 +1,100 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package httptest_test
+
+import (
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/http/httptest"
+)
+
+func ExampleResponseRecorder() {
+	handler := func(w http.ResponseWriter, r *http.Request) {
+		io.WriteString(w, "<html><body>Hello World!</body></html>")
+	}
+
+	req := httptest.NewRequest("GET", "http://example.com/foo", nil)
+	w := httptest.NewRecorder()
+	handler(w, req)
+
+	resp := w.Result()
+	body, _ := ioutil.ReadAll(resp.Body)
+
+	fmt.Println(resp.StatusCode)
+	fmt.Println(resp.Header.Get("Content-Type"))
+	fmt.Println(string(body))
+
+	// Output:
+	// 200
+	// text/html; charset=utf-8
+	// <html><body>Hello World!</body></html>
+}
+
+func ExampleServer() {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintln(w, "Hello, client")
+	}))
+	defer ts.Close()
+
+	res, err := http.Get(ts.URL)
+	if err != nil {
+		log.Fatal(err)
+	}
+	greeting, err := ioutil.ReadAll(res.Body)
+	res.Body.Close()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Printf("%s", greeting)
+	// Output: Hello, client
+}
+
+func ExampleServer_hTTP2() {
+	ts := httptest.NewUnstartedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, "Hello, %s", r.Proto)
+	}))
+	ts.EnableHTTP2 = true
+	ts.StartTLS()
+	defer ts.Close()
+
+	res, err := ts.Client().Get(ts.URL)
+	if err != nil {
+		log.Fatal(err)
+	}
+	greeting, err := ioutil.ReadAll(res.Body)
+	res.Body.Close()
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Printf("%s", greeting)
+
+	// Output: Hello, HTTP/2.0
+}
+
+func ExampleNewTLSServer() {
+	ts := httptest.NewTLSServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintln(w, "Hello, client")
+	}))
+	defer ts.Close()
+
+	client := ts.Client()
+	res, err := client.Get(ts.URL)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	greeting, err := ioutil.ReadAll(res.Body)
+	res.Body.Close()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Printf("%s", greeting)
+	// Output: Hello, client
+}
diff --git a/libgo/go/net/http/httptest/server.go b/libgo/go/net/http/httptest/server.go
index 485a4a5..8ebf681 100644
--- a/libgo/go/net/http/httptest/server.go
+++ b/libgo/go/net/http/httptest/server.go
@@ -27,6 +27,11 @@
 	URL      string // base URL of form http://ipaddr:port with no trailing slash
 	Listener net.Listener
 
+	// EnableHTTP2 controls whether HTTP/2 is enabled
+	// on the server. It must be set between calling
+	// NewUnstartedServer and calling Server.StartTLS.
+	EnableHTTP2 bool
+
 	// TLS is the optional TLS configuration, populated with a new config
 	// after TLS is started. If set on an unstarted server before StartTLS
 	// is called, existing fields are copied into the new config.
@@ -151,7 +156,11 @@
 		s.TLS = new(tls.Config)
 	}
 	if s.TLS.NextProtos == nil {
-		s.TLS.NextProtos = []string{"http/1.1"}
+		nextProtos := []string{"http/1.1"}
+		if s.EnableHTTP2 {
+			nextProtos = []string{"h2"}
+		}
+		s.TLS.NextProtos = nextProtos
 	}
 	if len(s.TLS.Certificates) == 0 {
 		s.TLS.Certificates = []tls.Certificate{cert}
@@ -166,6 +175,7 @@
 		TLSClientConfig: &tls.Config{
 			RootCAs: certpool,
 		},
+		ForceAttemptHTTP2: s.EnableHTTP2,
 	}
 	s.Listener = tls.NewListener(s.Listener, s.TLS)
 	s.URL = "https://" + s.Listener.Addr().String()
diff --git a/libgo/go/net/http/httptest/server_test.go b/libgo/go/net/http/httptest/server_test.go
index 8ab50cd..0aad15c 100644
--- a/libgo/go/net/http/httptest/server_test.go
+++ b/libgo/go/net/http/httptest/server_test.go
@@ -202,3 +202,39 @@
 
 	ts.Close() // tests that it doesn't panic
 }
+
+func TestTLSServerWithHTTP2(t *testing.T) {
+	modes := []struct {
+		name      string
+		wantProto string
+	}{
+		{"http1", "HTTP/1.1"},
+		{"http2", "HTTP/2.0"},
+	}
+
+	for _, tt := range modes {
+		t.Run(tt.name, func(t *testing.T) {
+			cst := NewUnstartedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				w.Header().Set("X-Proto", r.Proto)
+			}))
+
+			switch tt.name {
+			case "http2":
+				cst.EnableHTTP2 = true
+				cst.StartTLS()
+			default:
+				cst.Start()
+			}
+
+			defer cst.Close()
+
+			res, err := cst.Client().Get(cst.URL)
+			if err != nil {
+				t.Fatalf("Failed to make request: %v", err)
+			}
+			if g, w := res.Header.Get("X-Proto"), tt.wantProto; g != w {
+				t.Fatalf("X-Proto header mismatch:\n\tgot:  %q\n\twant: %q", g, w)
+			}
+		})
+	}
+}
diff --git a/libgo/go/net/http/httptrace/trace.go b/libgo/go/net/http/httptrace/trace.go
index 8b377ed..6a5cbac 100644
--- a/libgo/go/net/http/httptrace/trace.go
+++ b/libgo/go/net/http/httptrace/trace.go
@@ -133,8 +133,8 @@
 	ConnectDone func(network, addr string, err error)
 
 	// TLSHandshakeStart is called when the TLS handshake is started. When
-	// connecting to a HTTPS site via a HTTP proxy, the handshake happens after
-	// the CONNECT request is processed by the proxy.
+	// connecting to an HTTPS site via an HTTP proxy, the handshake happens
+	// after the CONNECT request is processed by the proxy.
 	TLSHandshakeStart func()
 
 	// TLSHandshakeDone is called after the TLS handshake with either the
diff --git a/libgo/go/net/http/httputil/dump.go b/libgo/go/net/http/httputil/dump.go
index 7104c37..c97be06 100644
--- a/libgo/go/net/http/httputil/dump.go
+++ b/libgo/go/net/http/httputil/dump.go
@@ -24,7 +24,7 @@
 // It returns an error if the initial slurp of all bytes fails. It does not attempt
 // to make the returned ReadClosers have identical error-matching behavior.
 func drainBody(b io.ReadCloser) (r1, r2 io.ReadCloser, err error) {
-	if b == http.NoBody {
+	if b == nil || b == http.NoBody {
 		// No copying needed. Preserve the magic sentinel meaning of NoBody.
 		return http.NoBody, http.NoBody, nil
 	}
@@ -60,16 +60,28 @@
 	return len(p), nil
 }
 
+// outGoingLength is a copy of the unexported
+// (*http.Request).outgoingLength method.
+func outgoingLength(req *http.Request) int64 {
+	if req.Body == nil || req.Body == http.NoBody {
+		return 0
+	}
+	if req.ContentLength != 0 {
+		return req.ContentLength
+	}
+	return -1
+}
+
 // DumpRequestOut is like DumpRequest but for outgoing client requests. It
 // includes any headers that the standard http.Transport adds, such as
 // User-Agent.
 func DumpRequestOut(req *http.Request, body bool) ([]byte, error) {
 	save := req.Body
 	dummyBody := false
-	if !body || req.Body == nil {
-		req.Body = nil
-		if req.ContentLength != 0 {
-			req.Body = ioutil.NopCloser(io.LimitReader(neverEnding('x'), req.ContentLength))
+	if !body {
+		contentLength := outgoingLength(req)
+		if contentLength != 0 {
+			req.Body = ioutil.NopCloser(io.LimitReader(neverEnding('x'), contentLength))
 			dummyBody = true
 		}
 	} else {
@@ -111,6 +123,10 @@
 	}
 	defer t.CloseIdleConnections()
 
+	// We need this channel to ensure that the reader
+	// goroutine exits if t.RoundTrip returns an error.
+	// See golang.org/issue/32571.
+	quitReadCh := make(chan struct{})
 	// Wait for the request before replying with a dummy response:
 	go func() {
 		req, err := http.ReadRequest(bufio.NewReader(pr))
@@ -120,13 +136,18 @@
 			io.Copy(ioutil.Discard, req.Body)
 			req.Body.Close()
 		}
-		dr.c <- strings.NewReader("HTTP/1.1 204 No Content\r\nConnection: close\r\n\r\n")
+		select {
+		case dr.c <- strings.NewReader("HTTP/1.1 204 No Content\r\nConnection: close\r\n\r\n"):
+		case <-quitReadCh:
+		}
 	}()
 
 	_, err := t.RoundTrip(reqSend)
 
 	req.Body = save
 	if err != nil {
+		pw.Close()
+		quitReadCh <- struct{}{}
 		return nil, err
 	}
 	dump := buf.Bytes()
diff --git a/libgo/go/net/http/httputil/dump_test.go b/libgo/go/net/http/httputil/dump_test.go
index 97954ca..ead56bc 100644
--- a/libgo/go/net/http/httputil/dump_test.go
+++ b/libgo/go/net/http/httputil/dump_test.go
@@ -17,6 +17,12 @@
 	"testing"
 )
 
+type eofReader struct{}
+
+func (n eofReader) Close() error { return nil }
+
+func (n eofReader) Read([]byte) (int, error) { return 0, io.EOF }
+
 type dumpTest struct {
 	// Either Req or GetReq can be set/nil but not both.
 	Req    *http.Request
@@ -26,6 +32,7 @@
 
 	WantDump    string
 	WantDumpOut string
+	MustError   bool // if true, the test is expected to throw an error
 	NoBody      bool // if true, set DumpRequest{,Out} body to false
 }
 
@@ -203,9 +210,42 @@
 			"Content-Length: 0\r\n" +
 			"Accept-Encoding: gzip\r\n\r\n",
 	},
+
+	// Issue 34504: a non-nil Body without ContentLength set should be chunked
+	{
+		Req: &http.Request{
+			Method: "PUT",
+			URL: &url.URL{
+				Scheme: "http",
+				Host:   "post.tld",
+				Path:   "/test",
+			},
+			ContentLength: 0,
+			Proto:         "HTTP/1.1",
+			ProtoMajor:    1,
+			ProtoMinor:    1,
+			Body:          &eofReader{},
+		},
+		NoBody: true,
+		WantDumpOut: "PUT /test HTTP/1.1\r\n" +
+			"Host: post.tld\r\n" +
+			"User-Agent: Go-http-client/1.1\r\n" +
+			"Transfer-Encoding: chunked\r\n" +
+			"Accept-Encoding: gzip\r\n\r\n",
+	},
 }
 
 func TestDumpRequest(t *testing.T) {
+	// Make a copy of dumpTests and add 10 new cases with an empty URL
+	// to test that no goroutines are leaked. See golang.org/issue/32571.
+	// 10 seems to be a decent number which always triggers the failure.
+	dumpTests := dumpTests[:]
+	for i := 0; i < 10; i++ {
+		dumpTests = append(dumpTests, dumpTest{
+			Req:       mustNewRequest("GET", "", nil),
+			MustError: true,
+		})
+	}
 	numg0 := runtime.NumGoroutine()
 	for i, tt := range dumpTests {
 		if tt.Req != nil && tt.GetReq != nil || tt.Req == nil && tt.GetReq == nil {
@@ -250,6 +290,15 @@
 			}
 		}
 
+		if tt.MustError {
+			req := freshReq(tt)
+			_, err := DumpRequestOut(req, !tt.NoBody)
+			if err == nil {
+				t.Errorf("DumpRequestOut #%d: expected an error, got nil", i)
+			}
+			continue
+		}
+
 		if tt.WantDumpOut != "" {
 			req := freshReq(tt)
 			dump, err := DumpRequestOut(req, !tt.NoBody)
diff --git a/libgo/go/net/http/httputil/reverseproxy_test.go b/libgo/go/net/http/httputil/reverseproxy_test.go
index 7f9dc08..f58e088 100644
--- a/libgo/go/net/http/httputil/reverseproxy_test.go
+++ b/libgo/go/net/http/httputil/reverseproxy_test.go
@@ -436,7 +436,7 @@
 	}
 	if err == nil {
 		// This should be an error like:
-		// Get http://127.0.0.1:58079: read tcp 127.0.0.1:58079:
+		// Get "http://127.0.0.1:58079": read tcp 127.0.0.1:58079:
 		//    use of closed network connection
 		t.Error("Server.Client().Do() returned nil error; want non-nil error")
 	}
diff --git a/libgo/go/net/http/main_test.go b/libgo/go/net/http/main_test.go
index 7936fb3..35cc809 100644
--- a/libgo/go/net/http/main_test.go
+++ b/libgo/go/net/http/main_test.go
@@ -90,6 +90,9 @@
 // (all.bash), but as a serial test otherwise. Using t.Parallel isn't
 // compatible with the afterTest func in non-short mode.
 func setParallel(t *testing.T) {
+	if strings.Contains(t.Name(), "HTTP2") {
+		http.CondSkipHTTP2(t)
+	}
 	if testing.Short() {
 		t.Parallel()
 	}
@@ -122,7 +125,7 @@
 		").noteClientGone(":     "a closenotifier sender",
 	}
 	var stacks string
-	for i := 0; i < 4; i++ {
+	for i := 0; i < 10; i++ {
 		bad = ""
 		stacks = strings.Join(interestingGoroutines(), "\n\n")
 		for substr, what := range badSubstring {
diff --git a/libgo/go/net/http/omithttp2.go b/libgo/go/net/http/omithttp2.go
new file mode 100644
index 0000000..a0b33e9
--- /dev/null
+++ b/libgo/go/net/http/omithttp2.go
@@ -0,0 +1,71 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build nethttpomithttp2
+
+package http
+
+import (
+	"errors"
+	"sync"
+	"time"
+)
+
+func init() {
+	omitBundledHTTP2 = true
+}
+
+const noHTTP2 = "no bundled HTTP/2" // should never see this
+
+var http2errRequestCanceled = errors.New("net/http: request canceled")
+
+var http2goAwayTimeout = 1 * time.Second
+
+const http2NextProtoTLS = "h2"
+
+type http2Transport struct {
+	MaxHeaderListSize uint32
+	ConnPool          interface{}
+}
+
+func (*http2Transport) RoundTrip(*Request) (*Response, error) { panic(noHTTP2) }
+func (*http2Transport) CloseIdleConnections()                 {}
+
+type http2erringRoundTripper struct{}
+
+func (http2erringRoundTripper) RoundTrip(*Request) (*Response, error) { panic(noHTTP2) }
+
+type http2noDialClientConnPool struct {
+	http2clientConnPool http2clientConnPool
+}
+
+type http2clientConnPool struct {
+	mu    *sync.Mutex
+	conns map[string][]struct{}
+}
+
+func http2configureTransport(*Transport) (*http2Transport, error) { panic(noHTTP2) }
+
+func http2isNoCachedConnError(err error) bool {
+	_, ok := err.(interface{ IsHTTP2NoCachedConnError() })
+	return ok
+}
+
+type http2Server struct {
+	NewWriteScheduler func() http2WriteScheduler
+}
+
+type http2WriteScheduler interface{}
+
+func http2NewPriorityWriteScheduler(interface{}) http2WriteScheduler { panic(noHTTP2) }
+
+func http2ConfigureServer(s *Server, conf *http2Server) error { panic(noHTTP2) }
+
+var http2ErrNoCachedConn = http2noCachedConnError{}
+
+type http2noCachedConnError struct{}
+
+func (http2noCachedConnError) IsHTTP2NoCachedConnError() {}
+
+func (http2noCachedConnError) Error() string { return "http2: no cached connection was available" }
diff --git a/libgo/go/net/http/pprof/pprof.go b/libgo/go/net/http/pprof/pprof.go
index 35b3285..a237f58 100644
--- a/libgo/go/net/http/pprof/pprof.go
+++ b/libgo/go/net/http/pprof/pprof.go
@@ -20,6 +20,9 @@
 // 		log.Println(http.ListenAndServe("localhost:6060", nil))
 // 	}()
 //
+// If you are not using DefaultServeMux, you will have to register handlers
+// with the mux you are using.
+//
 // Then use the pprof tool to look at the heap profile:
 //
 //	go tool pprof http://localhost:6060/debug/pprof/heap
diff --git a/libgo/go/net/http/readrequest_test.go b/libgo/go/net/http/readrequest_test.go
index 517a818..b227bb6 100644
--- a/libgo/go/net/http/readrequest_test.go
+++ b/libgo/go/net/http/readrequest_test.go
@@ -133,7 +133,7 @@
 		nil,
 		noBodyStr,
 		noTrailer,
-		"parse ../../../../etc/passwd: invalid URI for request",
+		`parse "../../../../etc/passwd": invalid URI for request`,
 	},
 
 	// Tests missing URL:
@@ -143,7 +143,7 @@
 		nil,
 		noBodyStr,
 		noTrailer,
-		"parse : empty url",
+		`parse "": empty url`,
 	},
 
 	// Tests chunked body with trailer:
diff --git a/libgo/go/net/http/request.go b/libgo/go/net/http/request.go
index 31d6208..8dd9fe1 100644
--- a/libgo/go/net/http/request.go
+++ b/libgo/go/net/http/request.go
@@ -22,6 +22,7 @@
 	"net/http/httptrace"
 	"net/textproto"
 	"net/url"
+	urlpkg "net/url"
 	"strconv"
 	"strings"
 	"sync"
@@ -217,9 +218,11 @@
 	// Transport.DisableKeepAlives were set.
 	Close bool
 
-	// For server requests, Host specifies the host on which the URL
-	// is sought. Per RFC 7230, section 5.4, this is either the value
-	// of the "Host" header or the host name given in the URL itself.
+	// For server requests, Host specifies the host on which the
+	// URL is sought. For HTTP/1 (per RFC 7230, section 5.4), this
+	// is either the value of the "Host" header or the host name
+	// given in the URL itself. For HTTP/2, it is the value of the
+	// ":authority" pseudo-header field.
 	// It may be of the form "host:port". For international domain
 	// names, Host may be in Punycode or Unicode form. Use
 	// golang.org/x/net/idna to convert it to either format if
@@ -347,8 +350,8 @@
 // sending the request, and reading the response headers and body.
 //
 // To create a new request with a context, use NewRequestWithContext.
-// To change the context of a request (such as an incoming) you then
-// also want to modify to send back out, use Request.Clone. Between
+// To change the context of a request, such as an incoming request you
+// want to modify before sending back out, use Request.Clone. Between
 // those two uses, it's rare to need WithContext.
 func (r *Request) WithContext(ctx context.Context) *Request {
 	if ctx == nil {
@@ -763,7 +766,7 @@
 	return host[:j] + host[i:]
 }
 
-// ParseHTTPVersion parses a HTTP version string.
+// ParseHTTPVersion parses an HTTP version string.
 // "HTTP/1.0" returns (1, 0, true).
 func ParseHTTPVersion(vers string) (major, minor int, ok bool) {
 	const Big = 1000000 // arbitrary upper bound
@@ -848,7 +851,7 @@
 	if ctx == nil {
 		return nil, errors.New("net/http: nil Context")
 	}
-	u, err := parseURL(url) // Just url.Parse (url is shadowed for godoc).
+	u, err := urlpkg.Parse(url)
 	if err != nil {
 		return nil, err
 	}
@@ -1165,9 +1168,7 @@
 
 func copyValues(dst, src url.Values) {
 	for k, vs := range src {
-		for _, value := range vs {
-			dst.Add(k, value)
-		}
+		dst[k] = append(dst[k], vs...)
 	}
 }
 
diff --git a/libgo/go/net/http/request_test.go b/libgo/go/net/http/request_test.go
index b072f95..42c16d0 100644
--- a/libgo/go/net/http/request_test.go
+++ b/libgo/go/net/http/request_test.go
@@ -85,35 +85,37 @@
 	}
 }
 
-type stringMap map[string][]string
-type parseContentTypeTest struct {
-	shouldError bool
-	contentType stringMap
-}
-
-var parseContentTypeTests = []parseContentTypeTest{
-	{false, stringMap{"Content-Type": {"text/plain"}}},
-	// Empty content type is legal - may be treated as
-	// application/octet-stream (RFC 7231, section 3.1.1.5)
-	{false, stringMap{}},
-	{true, stringMap{"Content-Type": {"text/plain; boundary="}}},
-	{false, stringMap{"Content-Type": {"application/unknown"}}},
-}
-
 func TestParseFormUnknownContentType(t *testing.T) {
-	for i, test := range parseContentTypeTests {
-		req := &Request{
-			Method: "POST",
-			Header: Header(test.contentType),
-			Body:   ioutil.NopCloser(strings.NewReader("body")),
-		}
-		err := req.ParseForm()
-		switch {
-		case err == nil && test.shouldError:
-			t.Errorf("test %d should have returned error", i)
-		case err != nil && !test.shouldError:
-			t.Errorf("test %d should not have returned error, got %v", i, err)
-		}
+	for _, test := range []struct {
+		name        string
+		wantErr     string
+		contentType Header
+	}{
+		{"text", "", Header{"Content-Type": {"text/plain"}}},
+		// Empty content type is legal - may be treated as
+		// application/octet-stream (RFC 7231, section 3.1.1.5)
+		{"empty", "", Header{}},
+		{"boundary", "mime: invalid media parameter", Header{"Content-Type": {"text/plain; boundary="}}},
+		{"unknown", "", Header{"Content-Type": {"application/unknown"}}},
+	} {
+		t.Run(test.name,
+			func(t *testing.T) {
+				req := &Request{
+					Method: "POST",
+					Header: test.contentType,
+					Body:   ioutil.NopCloser(strings.NewReader("body")),
+				}
+				err := req.ParseForm()
+				switch {
+				case err == nil && test.wantErr != "":
+					t.Errorf("unexpected success; want error %q", test.wantErr)
+				case err != nil && test.wantErr == "":
+					t.Errorf("want success, got error: %v", err)
+				case test.wantErr != "" && test.wantErr != fmt.Sprint(err):
+					t.Errorf("got error %q; want %q", err, test.wantErr)
+				}
+			},
+		)
 	}
 }
 
@@ -826,6 +828,34 @@
 	}
 }
 
+func TestNoPanicOnRoundTripWithBasicAuth_h1(t *testing.T) {
+	testNoPanicWithBasicAuth(t, h1Mode)
+}
+
+func TestNoPanicOnRoundTripWithBasicAuth_h2(t *testing.T) {
+	testNoPanicWithBasicAuth(t, h2Mode)
+}
+
+// Issue 34878: verify we don't panic when including basic auth (Go 1.13 regression)
+func testNoPanicWithBasicAuth(t *testing.T, h2 bool) {
+	defer afterTest(t)
+	cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {}))
+	defer cst.close()
+
+	u, err := url.Parse(cst.ts.URL)
+	if err != nil {
+		t.Fatal(err)
+	}
+	u.User = url.UserPassword("foo", "bar")
+	req := &Request{
+		URL:    u,
+		Method: "GET",
+	}
+	if _, err := cst.c.Do(req); err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+}
+
 // verify that NewRequest sets Request.GetBody and that it works
 func TestNewRequestGetBody(t *testing.T) {
 	tests := []struct {
diff --git a/libgo/go/net/http/response_test.go b/libgo/go/net/http/response_test.go
index ee7f0d0..0c78df6 100644
--- a/libgo/go/net/http/response_test.go
+++ b/libgo/go/net/http/response_test.go
@@ -636,6 +636,11 @@
 	{true, true},
 }
 
+type readerAndCloser struct {
+	io.Reader
+	io.Closer
+}
+
 // TestReadResponseCloseInMiddle tests that closing a body after
 // reading only part of its contents advances the read to the end of
 // the request, right up until the next request.
diff --git a/libgo/go/net/http/roundtrip_js.go b/libgo/go/net/http/roundtrip_js.go
index 6331351..4dd9965 100644
--- a/libgo/go/net/http/roundtrip_js.go
+++ b/libgo/go/net/http/roundtrip_js.go
@@ -41,7 +41,7 @@
 // Reference: https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters
 const jsFetchRedirect = "js.fetch:redirect"
 
-var useFakeNetwork = js.Global().Get("fetch") == js.Undefined()
+var useFakeNetwork = js.Global().Get("fetch").IsUndefined()
 
 // RoundTrip implements the RoundTripper interface using the WHATWG Fetch API.
 func (t *Transport) RoundTrip(req *Request) (*Response, error) {
@@ -50,7 +50,7 @@
 	}
 
 	ac := js.Global().Get("AbortController")
-	if ac != js.Undefined() {
+	if !ac.IsUndefined() {
 		// Some browsers that support WASM don't necessarily support
 		// the AbortController. See
 		// https://developer.mozilla.org/en-US/docs/Web/API/AbortController#Browser_compatibility.
@@ -74,7 +74,7 @@
 		opt.Set("redirect", h)
 		req.Header.Del(jsFetchRedirect)
 	}
-	if ac != js.Undefined() {
+	if !ac.IsUndefined() {
 		opt.Set("signal", ac.Get("signal"))
 	}
 	headers := js.Global().Get("Headers").New()
@@ -132,7 +132,7 @@
 		var body io.ReadCloser
 		// The body is undefined when the browser does not support streaming response bodies (Firefox),
 		// and null in certain error cases, i.e. when the request is blocked because of CORS settings.
-		if b != js.Undefined() && b != js.Null() {
+		if !b.IsUndefined() && !b.IsNull() {
 			body = &streamReader{stream: b.Call("getReader")}
 		} else {
 			// Fall back to using ArrayBuffer
@@ -168,7 +168,7 @@
 	respPromise.Call("then", success, failure)
 	select {
 	case <-req.Context().Done():
-		if ac != js.Undefined() {
+		if !ac.IsUndefined() {
 			// Abort the Fetch request
 			ac.Call("abort")
 		}
diff --git a/libgo/go/net/http/serve_test.go b/libgo/go/net/http/serve_test.go
index 61adda2..29b9379 100644
--- a/libgo/go/net/http/serve_test.go
+++ b/libgo/go/net/http/serve_test.go
@@ -10,6 +10,7 @@
 	"bufio"
 	"bytes"
 	"compress/gzip"
+	"compress/zlib"
 	"context"
 	"crypto/tls"
 	"encoding/json"
@@ -28,10 +29,11 @@
 	"net/url"
 	"os"
 	"os/exec"
+	"path/filepath"
 	"reflect"
+	"regexp"
 	"runtime"
 	"runtime/debug"
-	"sort"
 	"strconv"
 	"strings"
 	"sync"
@@ -1504,6 +1506,7 @@
 }
 
 func TestServeTLS(t *testing.T) {
+	CondSkipHTTP2(t)
 	// Not parallel: uses global test hooks.
 	defer afterTest(t)
 	defer SetTestHookServerServe(nil)
@@ -1654,6 +1657,7 @@
 }
 
 func testAutomaticHTTP2_ListenAndServe(t *testing.T, tlsConf *tls.Config) {
+	CondSkipHTTP2(t)
 	// Not parallel: uses global test hooks.
 	defer afterTest(t)
 	defer SetTestHookServerServe(nil)
@@ -2627,7 +2631,7 @@
 
 // Test that Redirect sets Content-Type header for GET and HEAD requests
 // and writes a short HTML body, unless the request already has a Content-Type header.
-func TestRedirect_contentTypeAndBody(t *testing.T) {
+func TestRedirectContentTypeAndBody(t *testing.T) {
 	type ctHeader struct {
 		Values []string
 	}
@@ -2906,7 +2910,7 @@
 }
 
 // https://golang.org/issue/18952.
-func TestStripPrefix_notModifyRequest(t *testing.T) {
+func TestStripPrefixNotModifyRequest(t *testing.T) {
 	h := StripPrefix("/foo", NotFoundHandler())
 	req := httptest.NewRequest("GET", "/foo/bar", nil)
 	h.ServeHTTP(httptest.NewRecorder(), req)
@@ -4111,14 +4115,49 @@
 			panic("intentional panic")
 		},
 	}
+
+	// A stateLog is a log of states over the lifetime of a connection.
+	type stateLog struct {
+		active   net.Conn // The connection for which the log is recorded; set to the first connection seen in StateNew.
+		got      []ConnState
+		want     []ConnState
+		complete chan<- struct{} // If non-nil, closed when either 'got' is equal to 'want', or 'got' is no longer a prefix of 'want'.
+	}
+	activeLog := make(chan *stateLog, 1)
+
+	// wantLog invokes doRequests, then waits for the resulting connection to
+	// either pass through the sequence of states in want or enter a state outside
+	// of that sequence.
+	wantLog := func(doRequests func(), want ...ConnState) {
+		t.Helper()
+		complete := make(chan struct{})
+		activeLog <- &stateLog{want: want, complete: complete}
+
+		doRequests()
+
+		timer := time.NewTimer(5 * time.Second)
+		select {
+		case <-timer.C:
+			t.Errorf("Timed out waiting for connection to change state.")
+		case <-complete:
+			timer.Stop()
+		}
+		sl := <-activeLog
+		if !reflect.DeepEqual(sl.got, sl.want) {
+			t.Errorf("Request(s) produced unexpected state sequence.\nGot:  %v\nWant: %v", sl.got, sl.want)
+		}
+		// Don't return sl to activeLog: we don't expect any further states after
+		// this point, and want to keep the ConnState callback blocked until the
+		// next call to wantLog.
+	}
+
 	ts := httptest.NewUnstartedServer(HandlerFunc(func(w ResponseWriter, r *Request) {
 		handler[r.URL.Path](w, r)
 	}))
-	defer ts.Close()
-
-	var mu sync.Mutex // guard stateLog and connID
-	var stateLog = map[int][]ConnState{}
-	var connID = map[net.Conn]int{}
+	defer func() {
+		activeLog <- &stateLog{} // If the test failed, allow any remaining ConnState callbacks to complete.
+		ts.Close()
+	}()
 
 	ts.Config.ErrorLog = log.New(ioutil.Discard, "", 0)
 	ts.Config.ConnState = func(c net.Conn, state ConnState) {
@@ -4126,20 +4165,27 @@
 			t.Errorf("nil conn seen in state %s", state)
 			return
 		}
-		mu.Lock()
-		defer mu.Unlock()
-		id, ok := connID[c]
-		if !ok {
-			id = len(connID) + 1
-			connID[c] = id
+		sl := <-activeLog
+		if sl.active == nil && state == StateNew {
+			sl.active = c
+		} else if sl.active != c {
+			t.Errorf("unexpected conn in state %s", state)
+			activeLog <- sl
+			return
 		}
-		stateLog[id] = append(stateLog[id], state)
+		sl.got = append(sl.got, state)
+		if sl.complete != nil && (len(sl.got) >= len(sl.want) || !reflect.DeepEqual(sl.got, sl.want[:len(sl.got)])) {
+			close(sl.complete)
+			sl.complete = nil
+		}
+		activeLog <- sl
 	}
-	ts.Start()
 
+	ts.Start()
 	c := ts.Client()
 
 	mustGet := func(url string, headers ...string) {
+		t.Helper()
 		req, err := NewRequest("GET", url, nil)
 		if err != nil {
 			t.Fatal(err)
@@ -4160,26 +4206,33 @@
 		}
 	}
 
-	mustGet(ts.URL + "/")
-	mustGet(ts.URL + "/close")
+	wantLog(func() {
+		mustGet(ts.URL + "/")
+		mustGet(ts.URL + "/close")
+	}, StateNew, StateActive, StateIdle, StateActive, StateClosed)
 
-	mustGet(ts.URL + "/")
-	mustGet(ts.URL+"/", "Connection", "close")
+	wantLog(func() {
+		mustGet(ts.URL + "/")
+		mustGet(ts.URL+"/", "Connection", "close")
+	}, StateNew, StateActive, StateIdle, StateActive, StateClosed)
 
-	mustGet(ts.URL + "/hijack")
-	mustGet(ts.URL + "/hijack-panic")
+	wantLog(func() {
+		mustGet(ts.URL + "/hijack")
+	}, StateNew, StateActive, StateHijacked)
 
-	// New->Closed
-	{
+	wantLog(func() {
+		mustGet(ts.URL + "/hijack-panic")
+	}, StateNew, StateActive, StateHijacked)
+
+	wantLog(func() {
 		c, err := net.Dial("tcp", ts.Listener.Addr().String())
 		if err != nil {
 			t.Fatal(err)
 		}
 		c.Close()
-	}
+	}, StateNew, StateClosed)
 
-	// New->Active->Closed
-	{
+	wantLog(func() {
 		c, err := net.Dial("tcp", ts.Listener.Addr().String())
 		if err != nil {
 			t.Fatal(err)
@@ -4189,10 +4242,9 @@
 		}
 		c.Read(make([]byte, 1)) // block until server hangs up on us
 		c.Close()
-	}
+	}, StateNew, StateActive, StateClosed)
 
-	// New->Idle->Closed
-	{
+	wantLog(func() {
 		c, err := net.Dial("tcp", ts.Listener.Addr().String())
 		if err != nil {
 			t.Fatal(err)
@@ -4208,47 +4260,7 @@
 			t.Fatal(err)
 		}
 		c.Close()
-	}
-
-	want := map[int][]ConnState{
-		1: {StateNew, StateActive, StateIdle, StateActive, StateClosed},
-		2: {StateNew, StateActive, StateIdle, StateActive, StateClosed},
-		3: {StateNew, StateActive, StateHijacked},
-		4: {StateNew, StateActive, StateHijacked},
-		5: {StateNew, StateClosed},
-		6: {StateNew, StateActive, StateClosed},
-		7: {StateNew, StateActive, StateIdle, StateClosed},
-	}
-	logString := func(m map[int][]ConnState) string {
-		var b bytes.Buffer
-		var keys []int
-		for id := range m {
-			keys = append(keys, id)
-		}
-		sort.Ints(keys)
-		for _, id := range keys {
-			fmt.Fprintf(&b, "Conn %d: ", id)
-			for _, s := range m[id] {
-				fmt.Fprintf(&b, "%s ", s)
-			}
-			b.WriteString("\n")
-		}
-		return b.String()
-	}
-
-	for i := 0; i < 5; i++ {
-		time.Sleep(time.Duration(i) * 50 * time.Millisecond)
-		mu.Lock()
-		match := reflect.DeepEqual(stateLog, want)
-		mu.Unlock()
-		if match {
-			return
-		}
-	}
-
-	mu.Lock()
-	t.Errorf("Unexpected events.\nGot log:\n%s\n   Want:\n%s\n", logString(stateLog), logString(want))
-	mu.Unlock()
+	}, StateNew, StateActive, StateIdle, StateClosed)
 }
 
 func TestServerKeepAlivesEnabled(t *testing.T) {
@@ -4347,7 +4359,7 @@
 
 // This verifies that a handler can Flush and then Hijack.
 //
-// An similar test crashed once during development, but it was only
+// A similar test crashed once during development, but it was only
 // testing this tangentially and temporarily until another TODO was
 // fixed.
 //
@@ -4755,6 +4767,10 @@
 		{"foo\xffbar: foo\r\n", 400},                         // binary in header
 		{"foo\x00bar: foo\r\n", 400},                         // binary in header
 		{"Foo: " + strings.Repeat("x", 1<<21) + "\r\n", 431}, // header too large
+		// Spaces between the header key and colon are not allowed.
+		// See RFC 7230, Section 3.2.4.
+		{"Foo : bar\r\n", 400},
+		{"Foo\t: bar\r\n", 400},
 
 		{"foo: foo foo\r\n", 200},    // LWS space is okay
 		{"foo: foo\tfoo\r\n", 200},   // LWS tab is okay
@@ -6117,6 +6133,39 @@
 	}
 }
 
+// Issue 35750: check ConnContext not modifying context for other connections
+func TestConnContextNotModifyingAllContexts(t *testing.T) {
+	setParallel(t)
+	defer afterTest(t)
+	type connKey struct{}
+	ts := httptest.NewUnstartedServer(HandlerFunc(func(rw ResponseWriter, r *Request) {
+		rw.Header().Set("Connection", "close")
+	}))
+	ts.Config.ConnContext = func(ctx context.Context, c net.Conn) context.Context {
+		if got := ctx.Value(connKey{}); got != nil {
+			t.Errorf("in ConnContext, unexpected context key = %#v", got)
+		}
+		return context.WithValue(ctx, connKey{}, "conn")
+	}
+	ts.Start()
+	defer ts.Close()
+
+	var res *Response
+	var err error
+
+	res, err = ts.Client().Get(ts.URL)
+	if err != nil {
+		t.Fatal(err)
+	}
+	res.Body.Close()
+
+	res, err = ts.Client().Get(ts.URL)
+	if err != nil {
+		t.Fatal(err)
+	}
+	res.Body.Close()
+}
+
 // Issue 30710: ensure that as per the spec, a server responds
 // with 501 Not Implemented for unsupported transfer-encodings.
 func TestUnsupportedTransferEncodingsReturn501(t *testing.T) {
@@ -6157,6 +6206,217 @@
 	}
 }
 
+func TestContentEncodingNoSniffing_h1(t *testing.T) {
+	testContentEncodingNoSniffing(t, h1Mode)
+}
+
+func TestContentEncodingNoSniffing_h2(t *testing.T) {
+	testContentEncodingNoSniffing(t, h2Mode)
+}
+
+// Issue 31753: don't sniff when Content-Encoding is set
+func testContentEncodingNoSniffing(t *testing.T, h2 bool) {
+	setParallel(t)
+	defer afterTest(t)
+
+	type setting struct {
+		name string
+		body []byte
+
+		// setting contentEncoding as an interface instead of a string
+		// directly, so as to differentiate between 3 states:
+		//    unset, empty string "" and set string "foo/bar".
+		contentEncoding interface{}
+		wantContentType string
+	}
+
+	settings := []*setting{
+		{
+			name:            "gzip content-encoding, gzipped", // don't sniff.
+			contentEncoding: "application/gzip",
+			wantContentType: "",
+			body: func() []byte {
+				buf := new(bytes.Buffer)
+				gzw := gzip.NewWriter(buf)
+				gzw.Write([]byte("doctype html><p>Hello</p>"))
+				gzw.Close()
+				return buf.Bytes()
+			}(),
+		},
+		{
+			name:            "zlib content-encoding, zlibbed", // don't sniff.
+			contentEncoding: "application/zlib",
+			wantContentType: "",
+			body: func() []byte {
+				buf := new(bytes.Buffer)
+				zw := zlib.NewWriter(buf)
+				zw.Write([]byte("doctype html><p>Hello</p>"))
+				zw.Close()
+				return buf.Bytes()
+			}(),
+		},
+		{
+			name:            "no content-encoding", // must sniff.
+			wantContentType: "application/x-gzip",
+			body: func() []byte {
+				buf := new(bytes.Buffer)
+				gzw := gzip.NewWriter(buf)
+				gzw.Write([]byte("doctype html><p>Hello</p>"))
+				gzw.Close()
+				return buf.Bytes()
+			}(),
+		},
+		{
+			name:            "phony content-encoding", // don't sniff.
+			contentEncoding: "foo/bar",
+			body:            []byte("doctype html><p>Hello</p>"),
+		},
+		{
+			name:            "empty but set content-encoding",
+			contentEncoding: "",
+			wantContentType: "audio/mpeg",
+			body:            []byte("ID3"),
+		},
+	}
+
+	for _, tt := range settings {
+		t.Run(tt.name, func(t *testing.T) {
+			cst := newClientServerTest(t, h2, HandlerFunc(func(rw ResponseWriter, r *Request) {
+				if tt.contentEncoding != nil {
+					rw.Header().Set("Content-Encoding", tt.contentEncoding.(string))
+				}
+				rw.Write(tt.body)
+			}))
+			defer cst.close()
+
+			res, err := cst.c.Get(cst.ts.URL)
+			if err != nil {
+				t.Fatalf("Failed to fetch URL: %v", err)
+			}
+			defer res.Body.Close()
+
+			if g, w := res.Header.Get("Content-Encoding"), tt.contentEncoding; g != w {
+				if w != nil { // The case where contentEncoding was set explicitly.
+					t.Errorf("Content-Encoding mismatch\n\tgot:  %q\n\twant: %q", g, w)
+				} else if g != "" { // "" should be the equivalent when the contentEncoding is unset.
+					t.Errorf("Unexpected Content-Encoding %q", g)
+				}
+			}
+
+			if g, w := res.Header.Get("Content-Type"), tt.wantContentType; g != w {
+				t.Errorf("Content-Type mismatch\n\tgot:  %q\n\twant: %q", g, w)
+			}
+		})
+	}
+}
+
+// Issue 30803: ensure that TimeoutHandler logs spurious
+// WriteHeader calls, for consistency with other Handlers.
+func TestTimeoutHandlerSuperfluousLogs(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping in short mode")
+	}
+
+	setParallel(t)
+	defer afterTest(t)
+
+	pc, curFile, _, _ := runtime.Caller(0)
+	curFileBaseName := filepath.Base(curFile)
+	testFuncName := runtime.FuncForPC(pc).Name()
+
+	timeoutMsg := "timed out here!"
+
+	tests := []struct {
+		name        string
+		mustTimeout bool
+		wantResp    string
+	}{
+		{
+			name:     "return before timeout",
+			wantResp: "HTTP/1.1 404 Not Found\r\nContent-Length: 0\r\n\r\n",
+		},
+		{
+			name:        "return after timeout",
+			mustTimeout: true,
+			wantResp: fmt.Sprintf("HTTP/1.1 503 Service Unavailable\r\nContent-Length: %d\r\n\r\n%s",
+				len(timeoutMsg), timeoutMsg),
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			exitHandler := make(chan bool, 1)
+			defer close(exitHandler)
+			lastLine := make(chan int, 1)
+
+			sh := HandlerFunc(func(w ResponseWriter, r *Request) {
+				w.WriteHeader(404)
+				w.WriteHeader(404)
+				w.WriteHeader(404)
+				w.WriteHeader(404)
+				_, _, line, _ := runtime.Caller(0)
+				lastLine <- line
+				<-exitHandler
+			})
+
+			if !tt.mustTimeout {
+				exitHandler <- true
+			}
+
+			logBuf := new(bytes.Buffer)
+			srvLog := log.New(logBuf, "", 0)
+			// When expecting to timeout, we'll keep the duration short.
+			dur := 20 * time.Millisecond
+			if !tt.mustTimeout {
+				// Otherwise, make it arbitrarily long to reduce the risk of flakes.
+				dur = 10 * time.Second
+			}
+			th := TimeoutHandler(sh, dur, timeoutMsg)
+			cst := newClientServerTest(t, h1Mode /* the test is protocol-agnostic */, th, optWithServerLog(srvLog))
+			defer cst.close()
+
+			res, err := cst.c.Get(cst.ts.URL)
+			if err != nil {
+				t.Fatalf("Unexpected error: %v", err)
+			}
+
+			// Deliberately removing the "Date" header since it is highly ephemeral
+			// and will cause failure if we try to match it exactly.
+			res.Header.Del("Date")
+			res.Header.Del("Content-Type")
+
+			// Match the response.
+			blob, _ := httputil.DumpResponse(res, true)
+			if g, w := string(blob), tt.wantResp; g != w {
+				t.Errorf("Response mismatch\nGot\n%q\n\nWant\n%q", g, w)
+			}
+
+			// Given 4 w.WriteHeader calls, only the first one is valid
+			// and the rest should be reported as the 3 spurious logs.
+			logEntries := strings.Split(strings.TrimSpace(logBuf.String()), "\n")
+			if g, w := len(logEntries), 3; g != w {
+				blob, _ := json.MarshalIndent(logEntries, "", "  ")
+				t.Fatalf("Server logs count mismatch\ngot %d, want %d\n\nGot\n%s\n", g, w, blob)
+			}
+
+			lastSpuriousLine := <-lastLine
+			firstSpuriousLine := lastSpuriousLine - 3
+			// Now ensure that the regexes match exactly.
+			//      "http: superfluous response.WriteHeader call from <fn>.func\d.\d (<curFile>:lastSpuriousLine-[1, 3]"
+			for i, logEntry := range logEntries {
+				wantLine := firstSpuriousLine + i
+				pat := fmt.Sprintf("^http: superfluous response.WriteHeader call from %s.func\\d+.\\d+ \\(%s:%d\\)$",
+					testFuncName, curFileBaseName, wantLine)
+				re := regexp.MustCompile(pat)
+				if !re.MatchString(logEntry) {
+					t.Errorf("Log entry mismatch\n\t%s\ndoes not match\n\t%s", logEntry, pat)
+				}
+			}
+		})
+	}
+}
+
 // fetchWireResponse is a helper for dialing to host,
 // sending http1ReqBody as the payload and retrieving
 // the response as it was sent on the wire.
diff --git a/libgo/go/net/http/server.go b/libgo/go/net/http/server.go
index aaf7b68..77329b2 100644
--- a/libgo/go/net/http/server.go
+++ b/libgo/go/net/http/server.go
@@ -19,6 +19,7 @@
 	"net"
 	"net/textproto"
 	"net/url"
+	urlpkg "net/url"
 	"os"
 	"path"
 	"runtime"
@@ -1384,7 +1385,12 @@
 	if bodyAllowedForStatus(code) {
 		// If no content type, apply sniffing algorithm to body.
 		_, haveType := header["Content-Type"]
-		if !haveType && !hasTE && len(p) > 0 {
+
+		// If the Content-Encoding was set and is non-blank,
+		// we shouldn't sniff the body. See Issue 31753.
+		ce := header.Get("Content-Encoding")
+		hasCE := len(ce) > 0
+		if !hasCE && !haveType && !hasTE && len(p) > 0 {
 			setHeader.contentType = DetectContentType(p)
 		}
 	} else {
@@ -1696,11 +1702,10 @@
 	time.Sleep(rstAvoidanceDelay)
 }
 
-// validNPN reports whether the proto is not a blacklisted Next
-// Protocol Negotiation protocol. Empty and built-in protocol types
-// are blacklisted and can't be overridden with alternate
-// implementations.
-func validNPN(proto string) bool {
+// validNextProto reports whether the proto is not a blacklisted ALPN
+// protocol name. Empty and built-in protocol types are blacklisted
+// and can't be overridden with alternate implementations.
+func validNextProto(proto string) bool {
 	switch proto {
 	case "", "http/1.1", "http/1.0":
 		return false
@@ -1799,9 +1804,9 @@
 		}
 		c.tlsState = new(tls.ConnectionState)
 		*c.tlsState = tlsConn.ConnectionState()
-		if proto := c.tlsState.NegotiatedProtocol; validNPN(proto) {
+		if proto := c.tlsState.NegotiatedProtocol; validNextProto(proto) {
 			if fn := c.server.TLSNextProto[proto]; fn != nil {
-				h := initNPNRequest{ctx, tlsConn, serverHandler{c.server}}
+				h := initALPNRequest{ctx, tlsConn, serverHandler{c.server}}
 				fn(c.server, tlsConn, h)
 			}
 			return
@@ -2066,8 +2071,7 @@
 // Setting the Content-Type header to any value, including nil,
 // disables that behavior.
 func Redirect(w ResponseWriter, r *Request, url string, code int) {
-	// parseURL is just url.Parse (url is shadowed for godoc).
-	if u, err := parseURL(url); err == nil {
+	if u, err := urlpkg.Parse(url); err == nil {
 		// If url was relative, make its path absolute by
 		// combining with request path.
 		// The client would probably do this for us,
@@ -2121,10 +2125,6 @@
 	}
 }
 
-// parseURL is just url.Parse. It exists only so that url.Parse can be called
-// in places where url is shadowed for godoc. See https://golang.org/cl/49930.
-var parseURL = url.Parse
-
 var htmlReplacer = strings.NewReplacer(
 	"&", "&amp;",
 	"<", "&lt;",
@@ -2493,7 +2493,12 @@
 // A Server defines parameters for running an HTTP server.
 // The zero value for Server is a valid configuration.
 type Server struct {
-	Addr    string  // TCP address to listen on, ":http" if empty
+	// Addr optionally specifies the TCP address for the server to listen on,
+	// in the form "host:port". If empty, ":http" (port 80) is used.
+	// The service names are defined in RFC 6335 and assigned by IANA.
+	// See net.Dial for details of the address format.
+	Addr string
+
 	Handler Handler // handler to invoke, http.DefaultServeMux if nil
 
 	// TLSConfig optionally provides a TLS configuration for use
@@ -2542,7 +2547,7 @@
 	MaxHeaderBytes int
 
 	// TLSNextProto optionally specifies a function to take over
-	// ownership of the provided TLS connection when an NPN/ALPN
+	// ownership of the provided TLS connection when an ALPN
 	// protocol upgrade has occurred. The map key is the protocol
 	// name negotiated. The Handler argument should be used to
 	// handle HTTP requests and will initialize the Request's TLS
@@ -2692,7 +2697,7 @@
 
 // RegisterOnShutdown registers a function to call on Shutdown.
 // This can be used to gracefully shutdown connections that have
-// undergone NPN/ALPN protocol upgrade or that have been hijacked.
+// undergone ALPN protocol upgrade or that have been hijacked.
 // This function should start protocol-specific graceful shutdown,
 // but should not wait for shutdown to complete.
 func (srv *Server) RegisterOnShutdown(f func()) {
@@ -2886,8 +2891,6 @@
 	}
 	defer srv.trackListener(&l, false)
 
-	var tempDelay time.Duration // how long to sleep on accept failure
-
 	baseCtx := context.Background()
 	if srv.BaseContext != nil {
 		baseCtx = srv.BaseContext(origListener)
@@ -2896,16 +2899,18 @@
 		}
 	}
 
+	var tempDelay time.Duration // how long to sleep on accept failure
+
 	ctx := context.WithValue(baseCtx, ServerContextKey, srv)
 	for {
-		rw, e := l.Accept()
-		if e != nil {
+		rw, err := l.Accept()
+		if err != nil {
 			select {
 			case <-srv.getDoneChan():
 				return ErrServerClosed
 			default:
 			}
-			if ne, ok := e.(net.Error); ok && ne.Temporary() {
+			if ne, ok := err.(net.Error); ok && ne.Temporary() {
 				if tempDelay == 0 {
 					tempDelay = 5 * time.Millisecond
 				} else {
@@ -2914,22 +2919,23 @@
 				if max := 1 * time.Second; tempDelay > max {
 					tempDelay = max
 				}
-				srv.logf("http: Accept error: %v; retrying in %v", e, tempDelay)
+				srv.logf("http: Accept error: %v; retrying in %v", err, tempDelay)
 				time.Sleep(tempDelay)
 				continue
 			}
-			return e
+			return err
 		}
+		connCtx := ctx
 		if cc := srv.ConnContext; cc != nil {
-			ctx = cc(ctx, rw)
-			if ctx == nil {
+			connCtx = cc(connCtx, rw)
+			if connCtx == nil {
 				panic("ConnContext returned nil")
 			}
 		}
 		tempDelay = 0
 		c := srv.newConn(rw)
 		c.setState(c.rwc, StateNew) // before Serve can return
-		go c.serve(ctx)
+		go c.serve(connCtx)
 	}
 }
 
@@ -3160,7 +3166,7 @@
 // configured otherwise. (by setting srv.TLSNextProto non-nil)
 // It must only be called via srv.nextProtoOnce (use srv.setupHTTP2_*).
 func (srv *Server) onceSetNextProtoDefaults() {
-	if strings.Contains(os.Getenv("GODEBUG"), "http2server=0") {
+	if omitBundledHTTP2 || strings.Contains(os.Getenv("GODEBUG"), "http2server=0") {
 		return
 	}
 	// Enable HTTP/2 by default if the user hasn't otherwise
@@ -3182,8 +3188,8 @@
 // After such a timeout, writes by h to its ResponseWriter will return
 // ErrHandlerTimeout.
 //
-// TimeoutHandler supports the Flusher and Pusher interfaces but does not
-// support the Hijacker interface.
+// TimeoutHandler supports the Pusher interface but does not support
+// the Hijacker or Flusher interfaces.
 func TimeoutHandler(h Handler, dt time.Duration, msg string) Handler {
 	return &timeoutHandler{
 		handler: h,
@@ -3223,8 +3229,9 @@
 	r = r.WithContext(ctx)
 	done := make(chan struct{})
 	tw := &timeoutWriter{
-		w: w,
-		h: make(Header),
+		w:   w,
+		h:   make(Header),
+		req: r,
 	}
 	panicChan := make(chan interface{}, 1)
 	go func() {
@@ -3264,6 +3271,7 @@
 	w    ResponseWriter
 	h    Header
 	wbuf bytes.Buffer
+	req  *Request
 
 	mu          sync.Mutex
 	timedOut    bool
@@ -3272,7 +3280,6 @@
 }
 
 var _ Pusher = (*timeoutWriter)(nil)
-var _ Flusher = (*timeoutWriter)(nil)
 
 // Push implements the Pusher interface.
 func (tw *timeoutWriter) Push(target string, opts *PushOptions) error {
@@ -3282,14 +3289,6 @@
 	return ErrNotSupported
 }
 
-// Flush implements the Flusher interface.
-func (tw *timeoutWriter) Flush() {
-	f, ok := tw.w.(Flusher)
-	if ok {
-		f.Flush()
-	}
-}
-
 func (tw *timeoutWriter) Header() Header { return tw.h }
 
 func (tw *timeoutWriter) Write(p []byte) (int, error) {
@@ -3299,24 +3298,32 @@
 		return 0, ErrHandlerTimeout
 	}
 	if !tw.wroteHeader {
-		tw.writeHeader(StatusOK)
+		tw.writeHeaderLocked(StatusOK)
 	}
 	return tw.wbuf.Write(p)
 }
 
-func (tw *timeoutWriter) WriteHeader(code int) {
+func (tw *timeoutWriter) writeHeaderLocked(code int) {
 	checkWriteHeaderCode(code)
-	tw.mu.Lock()
-	defer tw.mu.Unlock()
-	if tw.timedOut || tw.wroteHeader {
+
+	switch {
+	case tw.timedOut:
 		return
+	case tw.wroteHeader:
+		if tw.req != nil {
+			caller := relevantCaller()
+			logf(tw.req, "http: superfluous response.WriteHeader call from %s (%s:%d)", caller.Function, path.Base(caller.File), caller.Line)
+		}
+	default:
+		tw.wroteHeader = true
+		tw.code = code
 	}
-	tw.writeHeader(code)
 }
 
-func (tw *timeoutWriter) writeHeader(code int) {
-	tw.wroteHeader = true
-	tw.code = code
+func (tw *timeoutWriter) WriteHeader(code int) {
+	tw.mu.Lock()
+	defer tw.mu.Unlock()
+	tw.writeHeaderLocked(code)
 }
 
 // onceCloseListener wraps a net.Listener, protecting it from
@@ -3350,10 +3357,10 @@
 	}
 }
 
-// initNPNRequest is an HTTP handler that initializes certain
+// initALPNRequest is an HTTP handler that initializes certain
 // uninitialized fields in its *Request. Such partially-initialized
-// Requests come from NPN protocol handlers.
-type initNPNRequest struct {
+// Requests come from ALPN protocol handlers.
+type initALPNRequest struct {
 	ctx context.Context
 	c   *tls.Conn
 	h   serverHandler
@@ -3363,9 +3370,9 @@
 // recognized by x/net/http2 to pass down a context; the TLSNextProto
 // API predates context support so we shoehorn through the only
 // interface we have available.
-func (h initNPNRequest) BaseContext() context.Context { return h.ctx }
+func (h initALPNRequest) BaseContext() context.Context { return h.ctx }
 
-func (h initNPNRequest) ServeHTTP(rw ResponseWriter, req *Request) {
+func (h initALPNRequest) ServeHTTP(rw ResponseWriter, req *Request) {
 	if req.TLS == nil {
 		req.TLS = &tls.ConnectionState{}
 		*req.TLS = h.c.ConnectionState()
diff --git a/libgo/go/net/http/socks_bundle.go b/libgo/go/net/http/socks_bundle.go
index d22d636..e446669 100644
--- a/libgo/go/net/http/socks_bundle.go
+++ b/libgo/go/net/http/socks_bundle.go
@@ -283,7 +283,7 @@
 	// establishing the transport connection.
 	ProxyDial func(context.Context, string, string) (net.Conn, error)
 
-	// AuthMethods specifies the list of request authention
+	// AuthMethods specifies the list of request authentication
 	// methods.
 	// If empty, SOCKS client requests only AuthMethodNotRequired.
 	AuthMethods []socksAuthMethod
diff --git a/libgo/go/net/http/transfer.go b/libgo/go/net/http/transfer.go
index 2e01a07..1d6a987 100644
--- a/libgo/go/net/http/transfer.go
+++ b/libgo/go/net/http/transfer.go
@@ -7,6 +7,7 @@
 import (
 	"bufio"
 	"bytes"
+	"compress/gzip"
 	"errors"
 	"fmt"
 	"io"
@@ -466,6 +467,34 @@
 	return nil
 }
 
+// proxyingReadCloser is a composite type that accepts and proxies
+// io.Read and io.Close calls to its respective Reader and Closer.
+//
+// It is composed of:
+// a) a top-level reader e.g. the result of decompression
+// b) a symbolic Closer e.g. the result of decompression, the
+//    original body and the connection itself.
+type proxyingReadCloser struct {
+	io.Reader
+	io.Closer
+}
+
+// multiCloser implements io.Closer and allows a bunch of io.Closer values
+// to all be closed once.
+// Example usage is with proxyingReadCloser if we are decompressing a response
+// body on the fly and would like to close both *gzip.Reader and underlying body.
+type multiCloser []io.Closer
+
+func (mc multiCloser) Close() error {
+	var err error
+	for _, c := range mc {
+		if err1 := c.Close(); err1 != nil && err == nil {
+			err = err1
+		}
+	}
+	return err
+}
+
 // msg is *Request or *Response.
 func readTransfer(msg interface{}, r *bufio.Reader) (err error) {
 	t := &transferReader{RequestMethod: "GET"}
@@ -543,7 +572,7 @@
 	// Prepare body reader. ContentLength < 0 means chunked encoding
 	// or close connection when finished, since multipart is not supported yet
 	switch {
-	case chunked(t.TransferEncoding):
+	case chunked(t.TransferEncoding) || implicitlyChunked(t.TransferEncoding):
 		if noResponseBodyExpected(t.RequestMethod) || !bodyAllowedForStatus(t.StatusCode) {
 			t.Body = NoBody
 		} else {
@@ -564,6 +593,21 @@
 		}
 	}
 
+	// Finally if "gzip" was one of the requested transfer-encodings,
+	// we'll unzip the concatenated body/payload of the request.
+	// TODO: As we support more transfer-encodings, extract
+	// this code and apply the un-codings in reverse.
+	if t.Body != NoBody && gzipped(t.TransferEncoding) {
+		zr, err := gzip.NewReader(t.Body)
+		if err != nil {
+			return fmt.Errorf("http: failed to gunzip body: %v", err)
+		}
+		t.Body = &proxyingReadCloser{
+			Reader: zr,
+			Closer: multiCloser{zr, t.Body},
+		}
+	}
+
 	// Unify output
 	switch rr := msg.(type) {
 	case *Request:
@@ -583,8 +627,41 @@
 	return nil
 }
 
-// Checks whether chunked is part of the encodings stack
-func chunked(te []string) bool { return len(te) > 0 && te[0] == "chunked" }
+// Checks whether chunked is the last part of the encodings stack
+func chunked(te []string) bool { return len(te) > 0 && te[len(te)-1] == "chunked" }
+
+// implicitlyChunked is a helper to check for implicity of chunked, because
+// RFC 7230 Section 3.3.1 says that the sender MUST apply chunked as the final
+// payload body to ensure that the message is framed for both the request
+// and the body. Since "identity" is incompatible with any other transformational
+// encoding cannot co-exist, the presence of "identity" will cause implicitlyChunked
+// to return false.
+func implicitlyChunked(te []string) bool {
+	if len(te) == 0 { // No transfer-encodings passed in, so not implicitly chunked.
+		return false
+	}
+	for _, tei := range te {
+		if tei == "identity" {
+			return false
+		}
+	}
+	return true
+}
+
+func isGzipTransferEncoding(tei string) bool {
+	// RFC 7230 4.2.3 requests that "x-gzip" SHOULD be considered the same as "gzip".
+	return tei == "gzip" || tei == "x-gzip"
+}
+
+// Checks where either of "gzip" or "x-gzip" are contained in transfer encodings.
+func gzipped(te []string) bool {
+	for _, tei := range te {
+		if isGzipTransferEncoding(tei) {
+			return true
+		}
+	}
+	return false
+}
 
 // Checks whether the encoding is explicitly "identity".
 func isIdentity(te []string) bool { return len(te) == 1 && te[0] == "identity" }
@@ -620,25 +697,47 @@
 
 	encodings := strings.Split(raw[0], ",")
 	te := make([]string, 0, len(encodings))
-	// TODO: Even though we only support "identity" and "chunked"
-	// encodings, the loop below is designed with foresight. One
-	// invariant that must be maintained is that, if present,
-	// chunked encoding must always come first.
-	for _, encoding := range encodings {
+
+	// When adding new encodings, please maintain the invariant:
+	//   if chunked encoding is present, it must always
+	//   come last and it must be applied only once.
+	// See RFC 7230 Section 3.3.1 Transfer-Encoding.
+	for i, encoding := range encodings {
 		encoding = strings.ToLower(strings.TrimSpace(encoding))
-		// "identity" encoding is not recorded
+
 		if encoding == "identity" {
+			// "identity" should not be mixed with other transfer-encodings/compressions
+			// because it means "no compression, no transformation".
+			if len(encodings) != 1 {
+				return &badStringError{`"identity" when present must be the only transfer encoding`, strings.Join(encodings, ",")}
+			}
+			// "identity" is not recorded.
 			break
 		}
-		if encoding != "chunked" {
+
+		switch {
+		case encoding == "chunked":
+			// "chunked" MUST ALWAYS be the last
+			// encoding as per the  loop invariant.
+			// That is:
+			//     Invalid: [chunked, gzip]
+			//     Valid:   [gzip, chunked]
+			if i+1 != len(encodings) {
+				return &badStringError{"chunked must be applied only once, as the last encoding", strings.Join(encodings, ",")}
+			}
+			// Supported otherwise.
+
+		case isGzipTransferEncoding(encoding):
+			// Supported
+
+		default:
 			return &unsupportedTEError{fmt.Sprintf("unsupported transfer encoding: %q", encoding)}
 		}
+
 		te = te[0 : len(te)+1]
 		te[len(te)-1] = encoding
 	}
-	if len(te) > 1 {
-		return &badStringError{"too many transfer encodings", strings.Join(te, ",")}
-	}
+
 	if len(te) > 0 {
 		// RFC 7230 3.3.2 says "A sender MUST NOT send a
 		// Content-Length header field in any message that
diff --git a/libgo/go/net/http/transfer_test.go b/libgo/go/net/http/transfer_test.go
index 65009ee..a8ce2d3 100644
--- a/libgo/go/net/http/transfer_test.go
+++ b/libgo/go/net/http/transfer_test.go
@@ -7,6 +7,7 @@
 import (
 	"bufio"
 	"bytes"
+	"compress/gzip"
 	"crypto/rand"
 	"fmt"
 	"io"
@@ -61,7 +62,6 @@
 	buf := make([]byte, len(want))
 	n, err := res.Body.Read(buf)
 	if n != len(want) || err != io.EOF {
-		t.Logf("body = %#v", res.Body)
 		t.Errorf("Read = %v, %v; want %d, EOF", n, err, len(want))
 	}
 	if string(buf) != want {
@@ -290,7 +290,7 @@
 		},
 		{
 			hdr:     Header{"Transfer-Encoding": {"chunked, chunked", "identity", "chunked"}},
-			wantErr: &badStringError{"too many transfer encodings", "chunked,chunked"},
+			wantErr: &badStringError{"chunked must be applied only once, as the last encoding", "chunked, chunked"},
 		},
 		{
 			hdr:     Header{"Transfer-Encoding": {"chunked"}},
@@ -310,3 +310,283 @@
 		}
 	}
 }
+
+func gzipIt(s string) string {
+	buf := new(bytes.Buffer)
+	gw := gzip.NewWriter(buf)
+	gw.Write([]byte(s))
+	gw.Close()
+	return buf.String()
+}
+
+func TestUnitTestProxyingReadCloserClosesBody(t *testing.T) {
+	var checker closeChecker
+	buf := new(bytes.Buffer)
+	buf.WriteString("Hello, Gophers!")
+	prc := &proxyingReadCloser{
+		Reader: buf,
+		Closer: &checker,
+	}
+	prc.Close()
+
+	read, err := ioutil.ReadAll(prc)
+	if err != nil {
+		t.Fatalf("Read error: %v", err)
+	}
+	if g, w := string(read), "Hello, Gophers!"; g != w {
+		t.Errorf("Read mismatch: got %q want %q", g, w)
+	}
+
+	if checker.closed != true {
+		t.Fatal("closeChecker.Close was never invoked")
+	}
+}
+
+func TestGzipTransferEncoding_request(t *testing.T) {
+	helloWorldGzipped := gzipIt("Hello, World!")
+
+	tests := []struct {
+		payload  string
+		wantErr  string
+		wantBody string
+	}{
+
+		{
+			// The case of "chunked" properly applied as the last encoding
+			// and a gzipped request payload that is streamed in 3 parts.
+			payload: `POST / HTTP/1.1
+Host: golang.org
+Transfer-Encoding: gzip, chunked
+Content-Type: text/html; charset=UTF-8
+
+` + fmt.Sprintf("%02x\r\n%s\r\n%02x\r\n%s\r\n%02x\r\n%s\r\n0\r\n\r\n",
+				3, helloWorldGzipped[:3],
+				5, helloWorldGzipped[3:8],
+				len(helloWorldGzipped)-8, helloWorldGzipped[8:]),
+			wantBody: `Hello, World!`,
+		},
+
+		{
+			// The request specifies "Transfer-Encoding: chunked" so its body must be left untouched.
+			payload: `PUT / HTTP/1.1
+Host: golang.org
+Transfer-Encoding: chunked
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+` + fmt.Sprintf("%0x\r\n%s\r\n0\r\n\r\n", len(helloWorldGzipped), helloWorldGzipped),
+			// We want that payload as it was sent.
+			wantBody: helloWorldGzipped,
+		},
+
+		{
+			// Valid request, the body doesn't have "Transfer-Encoding: chunked" but implicitly encoded
+			// for chunking as per the advisory from RFC 7230 3.3.1 which advises for cases where.
+			payload: `POST / HTTP/1.1
+Host: localhost
+Transfer-Encoding: gzip
+Content-Type: text/html; charset=UTF-8
+
+` + fmt.Sprintf("%0x\r\n%s\r\n0\r\n\r\n", len(helloWorldGzipped), helloWorldGzipped),
+			wantBody: `Hello, World!`,
+		},
+
+		{
+			// Invalid request, the body isn't chunked nor is the connection terminated immediately
+			// hence invalid as per the advisory from RFC 7230 3.3.1 which advises for cases where
+			// a Transfer-Encoding that isn't finally chunked is provided.
+			payload: `PUT / HTTP/1.1
+Host: golang.org
+Transfer-Encoding: gzip
+Content-Length: 0
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+`,
+			wantErr: `EOF`,
+		},
+
+		{
+			// The case of chunked applied before another encoding.
+			payload: `PUT / HTTP/1.1
+Location: golang.org
+Transfer-Encoding: chunked, gzip
+Content-Length: 0
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+`,
+			wantErr: `chunked must be applied only once, as the last encoding "chunked, gzip"`,
+		},
+
+		{
+			// The case of chunked properly applied as the
+			// last encoding BUT with a bad "Content-Length".
+			payload: `POST / HTTP/1.1
+Host: golang.org
+Transfer-Encoding: gzip, chunked
+Content-Length: 10
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+` + "0\r\n\r\n",
+			wantErr: "EOF",
+		},
+	}
+
+	for i, tt := range tests {
+		req, err := ReadRequest(bufio.NewReader(strings.NewReader(tt.payload)))
+		if tt.wantErr != "" {
+			if err == nil || !strings.Contains(err.Error(), tt.wantErr) {
+				t.Errorf("test %d. Error mismatch\nGot:  %v\nWant: %s", i, err, tt.wantErr)
+			}
+			continue
+		}
+
+		if err != nil {
+			t.Errorf("test %d. Unexpected ReadRequest error: %v\nPayload:\n%s", i, err, tt.payload)
+			continue
+		}
+
+		got, err := ioutil.ReadAll(req.Body)
+		req.Body.Close()
+		if err != nil {
+			t.Errorf("test %d. Failed to read response body: %v", i, err)
+		}
+		if g, w := string(got), tt.wantBody; g != w {
+			t.Errorf("test %d. Request body mimsatch\nGot:\n%s\n\nWant:\n%s", i, g, w)
+		}
+	}
+}
+
+func TestGzipTransferEncoding_response(t *testing.T) {
+	helloWorldGzipped := gzipIt("Hello, World!")
+
+	tests := []struct {
+		payload  string
+		wantErr  string
+		wantBody string
+	}{
+
+		{
+			// The case of "chunked" properly applied as the last encoding
+			// and a gzipped payload that is streamed in 3 parts.
+			payload: `HTTP/1.1 302 Found
+Location: https://golang.org/
+Transfer-Encoding: gzip, chunked
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+` + fmt.Sprintf("%02x\r\n%s\r\n%02x\r\n%s\r\n%02x\r\n%s\r\n0\r\n\r\n",
+				3, helloWorldGzipped[:3],
+				5, helloWorldGzipped[3:8],
+				len(helloWorldGzipped)-8, helloWorldGzipped[8:]),
+			wantBody: `Hello, World!`,
+		},
+
+		{
+			// The response specifies "Transfer-Encoding: chunked" so response body must be left untouched.
+			payload: `HTTP/1.1 302 Found
+Location: https://golang.org/
+Transfer-Encoding: chunked
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+` + fmt.Sprintf("%0x\r\n%s\r\n0\r\n\r\n", len(helloWorldGzipped), helloWorldGzipped),
+			// We want that payload as it was sent.
+			wantBody: helloWorldGzipped,
+		},
+
+		{
+			// Valid response, the body doesn't have "Transfer-Encoding: chunked" but implicitly encoded
+			// for chunking as per the advisory from RFC 7230 3.3.1 which advises for cases where.
+			payload: `HTTP/1.1 302 Found
+Location: https://golang.org/
+Transfer-Encoding: gzip
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+` + fmt.Sprintf("%0x\r\n%s\r\n0\r\n\r\n", len(helloWorldGzipped), helloWorldGzipped),
+			wantBody: `Hello, World!`,
+		},
+
+		{
+			// Invalid response, the body isn't chunked nor is the connection terminated immediately
+			// hence invalid as per the advisory from RFC 7230 3.3.1 which advises for cases where
+			// a Transfer-Encoding that isn't finally chunked is provided.
+			payload: `HTTP/1.1 302 Found
+Location: https://golang.org/
+Transfer-Encoding: gzip
+Content-Length: 0
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+`,
+			wantErr: `EOF`,
+		},
+
+		{
+			// The case of chunked applied before another encoding.
+			payload: `HTTP/1.1 302 Found
+Location: https://golang.org/
+Transfer-Encoding: chunked, gzip
+Content-Length: 0
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+`,
+			wantErr: `chunked must be applied only once, as the last encoding "chunked, gzip"`,
+		},
+
+		{
+			// The case of chunked properly applied as the
+			// last encoding BUT with a bad "Content-Length".
+			payload: `HTTP/1.1 302 Found
+Location: https://golang.org/
+Transfer-Encoding: gzip, chunked
+Content-Length: 10
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+` + "0\r\n\r\n",
+			wantErr: "EOF",
+		},
+
+		{
+			// Including "identity" more than once.
+			payload: `HTTP/1.1 200 OK
+Location: https://golang.org/
+Transfer-Encoding: identity, identity
+Content-Length: 0
+Connection: close
+Content-Type: text/html; charset=UTF-8
+
+` + "0\r\n\r\n",
+			wantErr: `"identity" when present must be the only transfer encoding "identity, identity"`,
+		},
+	}
+
+	for i, tt := range tests {
+		res, err := ReadResponse(bufio.NewReader(strings.NewReader(tt.payload)), nil)
+		if tt.wantErr != "" {
+			if err == nil || !strings.Contains(err.Error(), tt.wantErr) {
+				t.Errorf("test %d. Error mismatch\nGot:  %v\nWant: %s", i, err, tt.wantErr)
+			}
+			continue
+		}
+
+		if err != nil {
+			t.Errorf("test %d. Unexpected ReadResponse error: %v\nPayload:\n%s", i, err, tt.payload)
+			continue
+		}
+
+		got, err := ioutil.ReadAll(res.Body)
+		res.Body.Close()
+		if err != nil {
+			t.Errorf("test %d. Failed to read response body: %v", i, err)
+		}
+		if g, w := string(got), tt.wantBody; g != w {
+			t.Errorf("test %d. Response body mimsatch\nGot:\n%s\n\nWant:\n%s", i, g, w)
+		}
+	}
+}
diff --git a/libgo/go/net/http/transport.go b/libgo/go/net/http/transport.go
index ee27987..64d8510 100644
--- a/libgo/go/net/http/transport.go
+++ b/libgo/go/net/http/transport.go
@@ -89,7 +89,7 @@
 // Request.GetBody defined. HTTP requests are considered idempotent if
 // they have HTTP methods GET, HEAD, OPTIONS, or TRACE; or if their
 // Header map contains an "Idempotency-Key" or "X-Idempotency-Key"
-// entry. If the idempotency key value is an zero-length slice, the
+// entry. If the idempotency key value is a zero-length slice, the
 // request is treated as idempotent but the header is not sent on the
 // wire.
 type Transport struct {
@@ -142,15 +142,24 @@
 	// If both are set, DialContext takes priority.
 	Dial func(network, addr string) (net.Conn, error)
 
-	// DialTLS specifies an optional dial function for creating
+	// DialTLSContext specifies an optional dial function for creating
 	// TLS connections for non-proxied HTTPS requests.
 	//
-	// If DialTLS is nil, Dial and TLSClientConfig are used.
+	// If DialTLSContext is nil (and the deprecated DialTLS below is also nil),
+	// DialContext and TLSClientConfig are used.
 	//
-	// If DialTLS is set, the Dial hook is not used for HTTPS
+	// If DialTLSContext is set, the Dial and DialContext hooks are not used for HTTPS
 	// requests and the TLSClientConfig and TLSHandshakeTimeout
 	// are ignored. The returned net.Conn is assumed to already be
 	// past the TLS handshake.
+	DialTLSContext func(ctx context.Context, network, addr string) (net.Conn, error)
+
+	// DialTLS specifies an optional dial function for creating
+	// TLS connections for non-proxied HTTPS requests.
+	//
+	// Deprecated: Use DialTLSContext instead, which allows the transport
+	// to cancel dials as soon as they are no longer needed.
+	// If both are set, DialTLSContext takes priority.
 	DialTLS func(network, addr string) (net.Conn, error)
 
 	// TLSClientConfig specifies the TLS configuration to use with
@@ -218,7 +227,7 @@
 	ExpectContinueTimeout time.Duration
 
 	// TLSNextProto specifies how the Transport switches to an
-	// alternate protocol (such as HTTP/2) after a TLS NPN/ALPN
+	// alternate protocol (such as HTTP/2) after a TLS ALPN
 	// protocol negotiation. If Transport dials an TLS connection
 	// with a non-empty protocol name and TLSNextProto contains a
 	// map entry for that key (such as "h2"), then the func is
@@ -286,7 +295,7 @@
 		DialContext:            t.DialContext,
 		Dial:                   t.Dial,
 		DialTLS:                t.DialTLS,
-		TLSClientConfig:        t.TLSClientConfig.Clone(),
+		DialTLSContext:         t.DialTLSContext,
 		TLSHandshakeTimeout:    t.TLSHandshakeTimeout,
 		DisableKeepAlives:      t.DisableKeepAlives,
 		DisableCompression:     t.DisableCompression,
@@ -302,6 +311,9 @@
 		WriteBufferSize:        t.WriteBufferSize,
 		ReadBufferSize:         t.ReadBufferSize,
 	}
+	if t.TLSClientConfig != nil {
+		t2.TLSClientConfig = t.TLSClientConfig.Clone()
+	}
 	if !t.tlsNextProtoWasNil {
 		npm := map[string]func(authority string, c *tls.Conn) RoundTripper{}
 		for k, v := range t.TLSNextProto {
@@ -322,6 +334,10 @@
 	CloseIdleConnections()
 }
 
+func (t *Transport) hasCustomTLSDialer() bool {
+	return t.DialTLS != nil || t.DialTLSContext != nil
+}
+
 // onceSetNextProtoDefaults initializes TLSNextProto.
 // It must be called via t.nextProtoOnce.Do.
 func (t *Transport) onceSetNextProtoDefaults() {
@@ -350,7 +366,7 @@
 		// Transport.
 		return
 	}
-	if !t.ForceAttemptHTTP2 && (t.TLSClientConfig != nil || t.Dial != nil || t.DialTLS != nil || t.DialContext != nil) {
+	if !t.ForceAttemptHTTP2 && (t.TLSClientConfig != nil || t.Dial != nil || t.DialContext != nil || t.hasCustomTLSDialer()) {
 		// Be conservative and don't automatically enable
 		// http2 if they've specified a custom TLS config or
 		// custom dialers. Let them opt-in themselves via
@@ -359,6 +375,9 @@
 		// However, if ForceAttemptHTTP2 is true, it overrides the above checks.
 		return
 	}
+	if omitBundledHTTP2 {
+		return
+	}
 	t2, err := http2configureTransport(t)
 	if err != nil {
 		log.Printf("Error enabling Transport HTTP/2 support: %v", err)
@@ -437,7 +456,7 @@
 	tr.mu.Unlock()
 }
 
-// useRegisteredProtocol reports whether an alternate protocol (as reqistered
+// useRegisteredProtocol reports whether an alternate protocol (as registered
 // with Transport.RegisterProtocol) should be respected for this request.
 func (t *Transport) useRegisteredProtocol(req *Request) bool {
 	if req.URL.Scheme == "https" && req.requiresHTTP1() {
@@ -469,10 +488,12 @@
 	if isHTTP {
 		for k, vv := range req.Header {
 			if !httpguts.ValidHeaderFieldName(k) {
+				req.closeBody()
 				return nil, fmt.Errorf("net/http: invalid header field name %q", k)
 			}
 			for _, v := range vv {
 				if !httpguts.ValidHeaderFieldValue(v) {
+					req.closeBody()
 					return nil, fmt.Errorf("net/http: invalid header field value %q for key %v", v, k)
 				}
 			}
@@ -492,6 +513,7 @@
 		return nil, &badStringError{"unsupported protocol scheme", scheme}
 	}
 	if req.Method != "" && !validMethod(req.Method) {
+		req.closeBody()
 		return nil, fmt.Errorf("net/http: invalid method %q", req.Method)
 	}
 	if req.URL.Host == "" {
@@ -537,9 +559,16 @@
 		if err == nil {
 			return resp, nil
 		}
-		if http2isNoCachedConnError(err) {
-			t.removeIdleConn(pconn)
-		} else if !pconn.shouldRetryRequest(req, err) {
+
+		// Failed. Clean up and determine whether to retry.
+
+		_, isH2DialError := pconn.alt.(http2erringRoundTripper)
+		if http2isNoCachedConnError(err) || isH2DialError {
+			if t.removeIdleConn(pconn) {
+				t.decConnsPerHost(pconn.cacheKey)
+			}
+		}
+		if !pconn.shouldRetryRequest(req, err) {
 			// Issue 16465: return underlying net.Conn.Read error from peek,
 			// as we've historically done.
 			if e, ok := err.(transportReadFromServerError); ok {
@@ -710,20 +739,10 @@
 }
 
 func (t *Transport) connectMethodForRequest(treq *transportRequest) (cm connectMethod, err error) {
-	// TODO: the validPort check is redundant after CL 189258, as url.URL.Port
-	// only returns valid ports now. golang.org/issue/33600
-	if port := treq.URL.Port(); !validPort(port) {
-		return cm, fmt.Errorf("invalid URL port %q", port)
-	}
 	cm.targetScheme = treq.URL.Scheme
 	cm.targetAddr = canonicalAddr(treq.URL)
 	if t.Proxy != nil {
 		cm.proxyURL, err = t.Proxy(treq.Request)
-		if err == nil && cm.proxyURL != nil {
-			if port := cm.proxyURL.Port(); !validPort(port) {
-				return cm, fmt.Errorf("invalid proxy URL port %q", port)
-			}
-		}
 	}
 	cm.onlyH1 = treq.requiresHTTP1()
 	return cm, err
@@ -753,7 +772,6 @@
 	errCloseIdleConns     = errors.New("http: CloseIdleConnections called")
 	errReadLoopExiting    = errors.New("http: persistConn.readLoop exiting")
 	errIdleConnTimeout    = errors.New("http: idle connection timeout")
-	errNotCachingH2Conn   = errors.New("http: not caching alternate protocol's connections")
 
 	// errServerClosedIdle is not seen by users for idempotent requests, but may be
 	// seen by a user if the server shuts down an idle connection and sends its FIN
@@ -911,16 +929,37 @@
 		return false
 	}
 
+	// If IdleConnTimeout is set, calculate the oldest
+	// persistConn.idleAt time we're willing to use a cached idle
+	// conn.
+	var oldTime time.Time
+	if t.IdleConnTimeout > 0 {
+		oldTime = time.Now().Add(-t.IdleConnTimeout)
+	}
+
 	// Look for most recently-used idle connection.
 	if list, ok := t.idleConn[w.key]; ok {
 		stop := false
 		delivered := false
 		for len(list) > 0 && !stop {
 			pconn := list[len(list)-1]
-			if pconn.isBroken() {
-				// persistConn.readLoop has marked the connection broken,
-				// but Transport.removeIdleConn has not yet removed it from the idle list.
-				// Drop on floor on behalf of Transport.removeIdleConn.
+
+			// See whether this connection has been idle too long, considering
+			// only the wall time (the Round(0)), in case this is a laptop or VM
+			// coming out of suspend with previously cached idle connections.
+			tooOld := !oldTime.IsZero() && pconn.idleAt.Round(0).Before(oldTime)
+			if tooOld {
+				// Async cleanup. Launch in its own goroutine (as if a
+				// time.AfterFunc called it); it acquires idleMu, which we're
+				// holding, and does a synchronous net.Conn.Close.
+				go pconn.closeConnIfStillIdle()
+			}
+			if pconn.isBroken() || tooOld {
+				// If either persistConn.readLoop has marked the connection
+				// broken, but Transport.removeIdleConn has not yet removed it
+				// from the idle list, or if this persistConn is too old (it was
+				// idle too long), then ignore it and look for another. In both
+				// cases it's already in the process of being closed.
 				list = list[:len(list)-1]
 				continue
 			}
@@ -960,26 +999,28 @@
 }
 
 // removeIdleConn marks pconn as dead.
-func (t *Transport) removeIdleConn(pconn *persistConn) {
+func (t *Transport) removeIdleConn(pconn *persistConn) bool {
 	t.idleMu.Lock()
 	defer t.idleMu.Unlock()
-	t.removeIdleConnLocked(pconn)
+	return t.removeIdleConnLocked(pconn)
 }
 
 // t.idleMu must be held.
-func (t *Transport) removeIdleConnLocked(pconn *persistConn) {
+func (t *Transport) removeIdleConnLocked(pconn *persistConn) bool {
 	if pconn.idleTimer != nil {
 		pconn.idleTimer.Stop()
 	}
 	t.idleLRU.remove(pconn)
 	key := pconn.cacheKey
 	pconns := t.idleConn[key]
+	var removed bool
 	switch len(pconns) {
 	case 0:
 		// Nothing
 	case 1:
 		if pconns[0] == pconn {
 			delete(t.idleConn, key)
+			removed = true
 		}
 	default:
 		for i, v := range pconns {
@@ -990,9 +1031,11 @@
 			// conns at the end.
 			copy(pconns[i:], pconns[i+1:])
 			t.idleConn[key] = pconns[:len(pconns)-1]
+			removed = true
 			break
 		}
 	}
+	return removed
 }
 
 func (t *Transport) setReqCanceler(r *Request, fn func(error)) {
@@ -1177,6 +1220,18 @@
 	}
 }
 
+func (t *Transport) customDialTLS(ctx context.Context, network, addr string) (conn net.Conn, err error) {
+	if t.DialTLSContext != nil {
+		conn, err = t.DialTLSContext(ctx, network, addr)
+	} else {
+		conn, err = t.DialTLS(network, addr)
+	}
+	if conn == nil && err == nil {
+		err = errors.New("net/http: Transport.DialTLS or DialTLSContext returned (nil, nil)")
+	}
+	return
+}
+
 // getConn dials and creates a new persistConn to the target as
 // specified in the connectMethod. This includes doing a proxy CONNECT
 // and/or setting up TLS.  If this doesn't return an error, the persistConn
@@ -1206,7 +1261,9 @@
 	// Queue for idle connection.
 	if delivered := t.queueForIdleConn(w); delivered {
 		pc := w.pc
-		if trace != nil && trace.GotConn != nil {
+		// Trace only for HTTP/1.
+		// HTTP/2 calls trace.GotConn itself.
+		if pc.alt == nil && trace != nil && trace.GotConn != nil {
 			trace.GotConn(pc.gotIdleConnTrace(pc.idleAt))
 		}
 		// set request canceler to some non-nil function so we
@@ -1360,19 +1417,6 @@
 	}
 }
 
-// The connect method and the transport can both specify a TLS
-// Host name.  The transport's name takes precedence if present.
-func chooseTLSHost(cm connectMethod, t *Transport) string {
-	tlsHost := ""
-	if t.TLSClientConfig != nil {
-		tlsHost = t.TLSClientConfig.ServerName
-	}
-	if tlsHost == "" {
-		tlsHost = cm.tlsHost()
-	}
-	return tlsHost
-}
-
 // Add TLS to a persistent connection, i.e. negotiate a TLS session. If pconn is already a TLS
 // tunnel, this function establishes a nested TLS session inside the encrypted channel.
 // The remote endpoint's name may be overridden by TLSClientConfig.ServerName.
@@ -1438,15 +1482,12 @@
 		}
 		return err
 	}
-	if cm.scheme() == "https" && t.DialTLS != nil {
+	if cm.scheme() == "https" && t.hasCustomTLSDialer() {
 		var err error
-		pconn.conn, err = t.DialTLS("tcp", cm.addr())
+		pconn.conn, err = t.customDialTLS(ctx, "tcp", cm.addr())
 		if err != nil {
 			return nil, wrapErr(err)
 		}
-		if pconn.conn == nil {
-			return nil, wrapErr(errors.New("net/http: Transport.DialTLS returned (nil, nil)"))
-		}
 		if tc, ok := pconn.conn.(*tls.Conn); ok {
 			// Handshake here, in case DialTLS didn't. TLSNextProto below
 			// depends on it for knowing the connection state.
@@ -1527,13 +1568,44 @@
 		if pa := cm.proxyAuth(); pa != "" {
 			connectReq.Header.Set("Proxy-Authorization", pa)
 		}
-		connectReq.Write(conn)
 
-		// Read response.
-		// Okay to use and discard buffered reader here, because
-		// TLS server will not speak until spoken to.
-		br := bufio.NewReader(conn)
-		resp, err := ReadResponse(br, connectReq)
+		// If there's no done channel (no deadline or cancellation
+		// from the caller possible), at least set some (long)
+		// timeout here. This will make sure we don't block forever
+		// and leak a goroutine if the connection stops replying
+		// after the TCP connect.
+		connectCtx := ctx
+		if ctx.Done() == nil {
+			newCtx, cancel := context.WithTimeout(ctx, 1*time.Minute)
+			defer cancel()
+			connectCtx = newCtx
+		}
+
+		didReadResponse := make(chan struct{}) // closed after CONNECT write+read is done or fails
+		var (
+			resp *Response
+			err  error // write or read error
+		)
+		// Write the CONNECT request & read the response.
+		go func() {
+			defer close(didReadResponse)
+			err = connectReq.Write(conn)
+			if err != nil {
+				return
+			}
+			// Okay to use and discard buffered reader here, because
+			// TLS server will not speak until spoken to.
+			br := bufio.NewReader(conn)
+			resp, err = ReadResponse(br, connectReq)
+		}()
+		select {
+		case <-connectCtx.Done():
+			conn.Close()
+			<-didReadResponse
+			return nil, connectCtx.Err()
+		case <-didReadResponse:
+			// resp or err now set
+		}
 		if err != nil {
 			conn.Close()
 			return nil, err
@@ -1927,7 +1999,7 @@
 			}
 			return
 		}
-		pc.readLimit = maxInt64 // effictively no limit for response bodies
+		pc.readLimit = maxInt64 // effectively no limit for response bodies
 
 		pc.mu.Lock()
 		pc.numExpectedResponses--
@@ -2635,11 +2707,6 @@
 	return gz.body.Close()
 }
 
-type readerAndCloser struct {
-	io.Reader
-	io.Closer
-}
-
 type tlsHandshakeTimeoutError struct{}
 
 func (tlsHandshakeTimeoutError) Timeout() bool   { return true }
@@ -2702,15 +2769,3 @@
 func (cl *connLRU) len() int {
 	return len(cl.m)
 }
-
-// validPort reports whether p (without the colon) is a valid port in
-// a URL, per RFC 3986 Section 3.2.3, which says the port may be
-// empty, or only contain digits.
-func validPort(p string) bool {
-	for _, r := range []byte(p) {
-		if r < '0' || r > '9' {
-			return false
-		}
-	}
-	return true
-}
diff --git a/libgo/go/net/http/transport_test.go b/libgo/go/net/http/transport_test.go
index f304a7b..2256813 100644
--- a/libgo/go/net/http/transport_test.go
+++ b/libgo/go/net/http/transport_test.go
@@ -591,6 +591,7 @@
 
 func TestTransportMaxConnsPerHost(t *testing.T) {
 	defer afterTest(t)
+	CondSkipHTTP2(t)
 
 	h := HandlerFunc(func(w ResponseWriter, r *Request) {
 		_, err := w.Write([]byte("foo"))
@@ -1441,6 +1442,72 @@
 	}
 }
 
+// Issue 28012: verify that the Transport closes its TCP connection to http proxies
+// when they're slow to reply to HTTPS CONNECT responses.
+func TestTransportProxyHTTPSConnectLeak(t *testing.T) {
+	setParallel(t)
+	defer afterTest(t)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	ln := newLocalListener(t)
+	defer ln.Close()
+	listenerDone := make(chan struct{})
+	go func() {
+		defer close(listenerDone)
+		c, err := ln.Accept()
+		if err != nil {
+			t.Errorf("Accept: %v", err)
+			return
+		}
+		defer c.Close()
+		// Read the CONNECT request
+		br := bufio.NewReader(c)
+		cr, err := ReadRequest(br)
+		if err != nil {
+			t.Errorf("proxy server failed to read CONNECT request")
+			return
+		}
+		if cr.Method != "CONNECT" {
+			t.Errorf("unexpected method %q", cr.Method)
+			return
+		}
+
+		// Now hang and never write a response; instead, cancel the request and wait
+		// for the client to close.
+		// (Prior to Issue 28012 being fixed, we never closed.)
+		cancel()
+		var buf [1]byte
+		_, err = br.Read(buf[:])
+		if err != io.EOF {
+			t.Errorf("proxy server Read err = %v; want EOF", err)
+		}
+		return
+	}()
+
+	c := &Client{
+		Transport: &Transport{
+			Proxy: func(*Request) (*url.URL, error) {
+				return url.Parse("http://" + ln.Addr().String())
+			},
+		},
+	}
+	req, err := NewRequestWithContext(ctx, "GET", "https://golang.fake.tld/", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = c.Do(req)
+	if err == nil {
+		t.Errorf("unexpected Get success")
+	}
+
+	// Wait unconditionally for the listener goroutine to exit: this should never
+	// hang, so if it does we want a full goroutine dump — and that's exactly what
+	// the testing package will give us when the test run times out.
+	<-listenerDone
+}
+
 // Issue 16997: test transport dial preserves typed errors
 func TestTransportDialPreservesNetOpProxyError(t *testing.T) {
 	defer afterTest(t)
@@ -2293,7 +2360,7 @@
 	got := logbuf.String()
 	want := `dial: blocking
 canceling
-Get = Get http://something.no-network.tld/: net/http: request canceled while waiting for connection
+Get = Get "http://something.no-network.tld/": net/http: request canceled while waiting for connection
 `
 	if got != want {
 		t.Errorf("Got events:\n%s\nWant:\n%s", got, want)
@@ -3509,6 +3576,90 @@
 	}
 }
 
+func TestTransportDialContext(t *testing.T) {
+	setParallel(t)
+	defer afterTest(t)
+	var mu sync.Mutex // guards following
+	var gotReq bool
+	var receivedContext context.Context
+
+	ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+		mu.Lock()
+		gotReq = true
+		mu.Unlock()
+	}))
+	defer ts.Close()
+	c := ts.Client()
+	c.Transport.(*Transport).DialContext = func(ctx context.Context, netw, addr string) (net.Conn, error) {
+		mu.Lock()
+		receivedContext = ctx
+		mu.Unlock()
+		return net.Dial(netw, addr)
+	}
+
+	req, err := NewRequest("GET", ts.URL, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	ctx := context.WithValue(context.Background(), "some-key", "some-value")
+	res, err := c.Do(req.WithContext(ctx))
+	if err != nil {
+		t.Fatal(err)
+	}
+	res.Body.Close()
+	mu.Lock()
+	if !gotReq {
+		t.Error("didn't get request")
+	}
+	if receivedContext != ctx {
+		t.Error("didn't receive correct context")
+	}
+}
+
+func TestTransportDialTLSContext(t *testing.T) {
+	setParallel(t)
+	defer afterTest(t)
+	var mu sync.Mutex // guards following
+	var gotReq bool
+	var receivedContext context.Context
+
+	ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+		mu.Lock()
+		gotReq = true
+		mu.Unlock()
+	}))
+	defer ts.Close()
+	c := ts.Client()
+	c.Transport.(*Transport).DialTLSContext = func(ctx context.Context, netw, addr string) (net.Conn, error) {
+		mu.Lock()
+		receivedContext = ctx
+		mu.Unlock()
+		c, err := tls.Dial(netw, addr, c.Transport.(*Transport).TLSClientConfig)
+		if err != nil {
+			return nil, err
+		}
+		return c, c.Handshake()
+	}
+
+	req, err := NewRequest("GET", ts.URL, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	ctx := context.WithValue(context.Background(), "some-key", "some-value")
+	res, err := c.Do(req.WithContext(ctx))
+	if err != nil {
+		t.Fatal(err)
+	}
+	res.Body.Close()
+	mu.Lock()
+	if !gotReq {
+		t.Error("didn't get request")
+	}
+	if receivedContext != ctx {
+		t.Error("didn't receive correct context")
+	}
+}
+
 // Test for issue 8755
 // Ensure that if a proxy returns an error, it is exposed by RoundTrip
 func TestRoundTripReturnsProxyError(t *testing.T) {
@@ -3566,7 +3717,77 @@
 	wantIdle("after final put", 1)
 }
 
-// This tests that an client requesting a content range won't also
+// Test for issue 34282
+// Ensure that getConn doesn't call the GotConn trace hook on a HTTP/2 idle conn
+func TestTransportTraceGotConnH2IdleConns(t *testing.T) {
+	tr := &Transport{}
+	wantIdle := func(when string, n int) bool {
+		got := tr.IdleConnCountForTesting("https", "example.com:443") // key used by PutIdleTestConnH2
+		if got == n {
+			return true
+		}
+		t.Errorf("%s: idle conns = %d; want %d", when, got, n)
+		return false
+	}
+	wantIdle("start", 0)
+	alt := funcRoundTripper(func() {})
+	if !tr.PutIdleTestConnH2("https", "example.com:443", alt) {
+		t.Fatal("put failed")
+	}
+	wantIdle("after put", 1)
+	ctx := httptrace.WithClientTrace(context.Background(), &httptrace.ClientTrace{
+		GotConn: func(httptrace.GotConnInfo) {
+			// tr.getConn should leave it for the HTTP/2 alt to call GotConn.
+			t.Error("GotConn called")
+		},
+	})
+	req, _ := NewRequestWithContext(ctx, MethodGet, "https://example.com", nil)
+	_, err := tr.RoundTrip(req)
+	if err != errFakeRoundTrip {
+		t.Errorf("got error: %v; want %q", err, errFakeRoundTrip)
+	}
+	wantIdle("after round trip", 1)
+}
+
+func TestTransportRemovesH2ConnsAfterIdle(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping in short mode")
+	}
+
+	trFunc := func(tr *Transport) {
+		tr.MaxConnsPerHost = 1
+		tr.MaxIdleConnsPerHost = 1
+		tr.IdleConnTimeout = 10 * time.Millisecond
+	}
+	cst := newClientServerTest(t, h2Mode, HandlerFunc(func(w ResponseWriter, r *Request) {}), trFunc)
+	defer cst.close()
+
+	if _, err := cst.c.Get(cst.ts.URL); err != nil {
+		t.Fatalf("got error: %s", err)
+	}
+
+	time.Sleep(100 * time.Millisecond)
+	got := make(chan error)
+	go func() {
+		if _, err := cst.c.Get(cst.ts.URL); err != nil {
+			got <- err
+		}
+		close(got)
+	}()
+
+	timeout := time.NewTimer(5 * time.Second)
+	defer timeout.Stop()
+	select {
+	case err := <-got:
+		if err != nil {
+			t.Fatalf("got error: %s", err)
+		}
+	case <-timeout.C:
+		t.Fatal("request never completed")
+	}
+}
+
+// This tests that a client requesting a content range won't also
 // implicitly ask for gzip support. If they want that, they need to do it
 // on their own.
 // golang.org/issue/8923
@@ -3928,6 +4149,7 @@
 }
 
 func testTransportAutoHTTP(t *testing.T, tr *Transport, wantH2 bool) {
+	CondSkipHTTP2(t)
 	_, err := tr.RoundTrip(new(Request))
 	if err == nil {
 		t.Error("expected error from RoundTrip")
@@ -5509,6 +5731,7 @@
 		DialContext:            func(ctx context.Context, network, addr string) (net.Conn, error) { panic("") },
 		Dial:                   func(network, addr string) (net.Conn, error) { panic("") },
 		DialTLS:                func(network, addr string) (net.Conn, error) { panic("") },
+		DialTLSContext:         func(ctx context.Context, network, addr string) (net.Conn, error) { panic("") },
 		TLSClientConfig:        new(tls.Config),
 		TLSHandshakeTimeout:    time.Second,
 		DisableKeepAlives:      true,
@@ -5626,3 +5849,263 @@
 	}
 	t.Fatalf("timeout after %v waiting for Transport connections to die off", time.Since(t0))
 }
+
+func TestInvalidHeaderResponse(t *testing.T) {
+	setParallel(t)
+	defer afterTest(t)
+	cst := newClientServerTest(t, h1Mode, HandlerFunc(func(w ResponseWriter, r *Request) {
+		conn, buf, _ := w.(Hijacker).Hijack()
+		buf.Write([]byte("HTTP/1.1 200 OK\r\n" +
+			"Date: Wed, 30 Aug 2017 19:09:27 GMT\r\n" +
+			"Content-Type: text/html; charset=utf-8\r\n" +
+			"Content-Length: 0\r\n" +
+			"Foo : bar\r\n\r\n"))
+		buf.Flush()
+		conn.Close()
+	}))
+	defer cst.close()
+	res, err := cst.c.Get(cst.ts.URL)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer res.Body.Close()
+	if v := res.Header.Get("Foo"); v != "" {
+		t.Errorf(`unexpected "Foo" header: %q`, v)
+	}
+	if v := res.Header.Get("Foo "); v != "bar" {
+		t.Errorf(`bad "Foo " header value: %q, want %q`, v, "bar")
+	}
+}
+
+type bodyCloser bool
+
+func (bc *bodyCloser) Close() error {
+	*bc = true
+	return nil
+}
+func (bc *bodyCloser) Read(b []byte) (n int, err error) {
+	return 0, io.EOF
+}
+
+// Issue 35015: ensure that Transport closes the body on any error
+// with an invalid request, as promised by Client.Do docs.
+func TestTransportClosesBodyOnInvalidRequests(t *testing.T) {
+	cst := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+		t.Errorf("Should not have been invoked")
+	}))
+	defer cst.Close()
+
+	u, _ := url.Parse(cst.URL)
+
+	tests := []struct {
+		name    string
+		req     *Request
+		wantErr string
+	}{
+		{
+			name: "invalid method",
+			req: &Request{
+				Method: " ",
+				URL:    u,
+			},
+			wantErr: "invalid method",
+		},
+		{
+			name: "nil URL",
+			req: &Request{
+				Method: "GET",
+			},
+			wantErr: "nil Request.URL",
+		},
+		{
+			name: "invalid header key",
+			req: &Request{
+				Method: "GET",
+				Header: Header{"💡": {"emoji"}},
+				URL:    u,
+			},
+			wantErr: "invalid header field name",
+		},
+		{
+			name: "invalid header value",
+			req: &Request{
+				Method: "POST",
+				Header: Header{"key": {"\x19"}},
+				URL:    u,
+			},
+			wantErr: "invalid header field value",
+		},
+		{
+			name: "non HTTP(s) scheme",
+			req: &Request{
+				Method: "POST",
+				URL:    &url.URL{Scheme: "faux"},
+			},
+			wantErr: "unsupported protocol scheme",
+		},
+		{
+			name: "no Host in URL",
+			req: &Request{
+				Method: "POST",
+				URL:    &url.URL{Scheme: "http"},
+			},
+			wantErr: "no Host",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var bc bodyCloser
+			req := tt.req
+			req.Body = &bc
+			_, err := DefaultClient.Do(tt.req)
+			if err == nil {
+				t.Fatal("Expected an error")
+			}
+			if !bc {
+				t.Fatal("Expected body to have been closed")
+			}
+			if g, w := err.Error(), tt.wantErr; !strings.Contains(g, w) {
+				t.Fatalf("Error mismatch\n\t%q\ndoes not contain\n\t%q", g, w)
+			}
+		})
+	}
+}
+
+// breakableConn is a net.Conn wrapper with a Write method
+// that will fail when its brokenState is true.
+type breakableConn struct {
+	net.Conn
+	*brokenState
+}
+
+type brokenState struct {
+	sync.Mutex
+	broken bool
+}
+
+func (w *breakableConn) Write(b []byte) (n int, err error) {
+	w.Lock()
+	defer w.Unlock()
+	if w.broken {
+		return 0, errors.New("some write error")
+	}
+	return w.Conn.Write(b)
+}
+
+// Issue 34978: don't cache a broken HTTP/2 connection
+func TestDontCacheBrokenHTTP2Conn(t *testing.T) {
+	cst := newClientServerTest(t, h2Mode, HandlerFunc(func(w ResponseWriter, r *Request) {}), optQuietLog)
+	defer cst.close()
+
+	var brokenState brokenState
+
+	const numReqs = 5
+	var numDials, gotConns uint32 // atomic
+
+	cst.tr.Dial = func(netw, addr string) (net.Conn, error) {
+		atomic.AddUint32(&numDials, 1)
+		c, err := net.Dial(netw, addr)
+		if err != nil {
+			t.Errorf("unexpected Dial error: %v", err)
+			return nil, err
+		}
+		return &breakableConn{c, &brokenState}, err
+	}
+
+	for i := 1; i <= numReqs; i++ {
+		brokenState.Lock()
+		brokenState.broken = false
+		brokenState.Unlock()
+
+		// doBreak controls whether we break the TCP connection after the TLS
+		// handshake (before the HTTP/2 handshake). We test a few failures
+		// in a row followed by a final success.
+		doBreak := i != numReqs
+
+		ctx := httptrace.WithClientTrace(context.Background(), &httptrace.ClientTrace{
+			GotConn: func(info httptrace.GotConnInfo) {
+				t.Logf("got conn: %v, reused=%v, wasIdle=%v, idleTime=%v", info.Conn.LocalAddr(), info.Reused, info.WasIdle, info.IdleTime)
+				atomic.AddUint32(&gotConns, 1)
+			},
+			TLSHandshakeDone: func(cfg tls.ConnectionState, err error) {
+				brokenState.Lock()
+				defer brokenState.Unlock()
+				if doBreak {
+					brokenState.broken = true
+				}
+			},
+		})
+		req, err := NewRequestWithContext(ctx, "GET", cst.ts.URL, nil)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_, err = cst.c.Do(req)
+		if doBreak != (err != nil) {
+			t.Errorf("for iteration %d, doBreak=%v; unexpected error %v", i, doBreak, err)
+		}
+	}
+	if got, want := atomic.LoadUint32(&gotConns), 1; int(got) != want {
+		t.Errorf("GotConn calls = %v; want %v", got, want)
+	}
+	if got, want := atomic.LoadUint32(&numDials), numReqs; int(got) != want {
+		t.Errorf("Dials = %v; want %v", got, want)
+	}
+}
+
+// Issue 34941
+// When the client has too many concurrent requests on a single connection,
+// http.http2noCachedConnError is reported on multiple requests. There should
+// only be one decrement regardless of the number of failures.
+func TestTransportDecrementConnWhenIdleConnRemoved(t *testing.T) {
+	defer afterTest(t)
+	CondSkipHTTP2(t)
+
+	h := HandlerFunc(func(w ResponseWriter, r *Request) {
+		_, err := w.Write([]byte("foo"))
+		if err != nil {
+			t.Fatalf("Write: %v", err)
+		}
+	})
+
+	ts := httptest.NewUnstartedServer(h)
+	ts.EnableHTTP2 = true
+	ts.StartTLS()
+	defer ts.Close()
+
+	c := ts.Client()
+	tr := c.Transport.(*Transport)
+	tr.MaxConnsPerHost = 1
+	if err := ExportHttp2ConfigureTransport(tr); err != nil {
+		t.Fatalf("ExportHttp2ConfigureTransport: %v", err)
+	}
+
+	errCh := make(chan error, 300)
+	doReq := func() {
+		resp, err := c.Get(ts.URL)
+		if err != nil {
+			errCh <- fmt.Errorf("request failed: %v", err)
+			return
+		}
+		defer resp.Body.Close()
+		_, err = ioutil.ReadAll(resp.Body)
+		if err != nil {
+			errCh <- fmt.Errorf("read body failed: %v", err)
+		}
+	}
+
+	var wg sync.WaitGroup
+	for i := 0; i < 300; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			doReq()
+		}()
+	}
+	wg.Wait()
+	close(errCh)
+
+	for err := range errCh {
+		t.Errorf("error occurred: %v", err)
+	}
+}
diff --git a/libgo/go/net/interface.go b/libgo/go/net/interface.go
index 5824856..914aaa0 100644
--- a/libgo/go/net/interface.go
+++ b/libgo/go/net/interface.go
@@ -10,7 +10,7 @@
 	"time"
 )
 
-// BUG(mikio): On JS and NaCl, methods and functions related to
+// BUG(mikio): On JS, methods and functions related to
 // Interface are not implemented.
 
 // BUG(mikio): On AIX, DragonFly BSD, NetBSD, OpenBSD, Plan 9 and
diff --git a/libgo/go/net/interface_bsd_test.go b/libgo/go/net/interface_bsd_test.go
new file mode 100644
index 0000000..947dde7
--- /dev/null
+++ b/libgo/go/net/interface_bsd_test.go
@@ -0,0 +1,60 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin dragonfly freebsd netbsd openbsd
+
+package net
+
+import (
+	"errors"
+	"fmt"
+	"os/exec"
+	"runtime"
+)
+
+func (ti *testInterface) setBroadcast(vid int) error {
+	if runtime.GOOS == "openbsd" {
+		ti.name = fmt.Sprintf("vether%d", vid)
+	} else {
+		ti.name = fmt.Sprintf("vlan%d", vid)
+	}
+	xname, err := exec.LookPath("ifconfig")
+	if err != nil {
+		return err
+	}
+	ti.setupCmds = append(ti.setupCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ifconfig", ti.name, "create"},
+	})
+	ti.teardownCmds = append(ti.teardownCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ifconfig", ti.name, "destroy"},
+	})
+	return nil
+}
+
+func (ti *testInterface) setPointToPoint(suffix int) error {
+	ti.name = fmt.Sprintf("gif%d", suffix)
+	xname, err := exec.LookPath("ifconfig")
+	if err != nil {
+		return err
+	}
+	ti.setupCmds = append(ti.setupCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ifconfig", ti.name, "create"},
+	})
+	ti.setupCmds = append(ti.setupCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ifconfig", ti.name, "inet", ti.local, ti.remote},
+	})
+	ti.teardownCmds = append(ti.teardownCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ifconfig", ti.name, "destroy"},
+	})
+	return nil
+}
+
+func (ti *testInterface) setLinkLocal(suffix int) error {
+	return errors.New("not yet implemented for BSD")
+}
diff --git a/libgo/go/net/interface_linux_test.go b/libgo/go/net/interface_linux_test.go
new file mode 100644
index 0000000..0699fec
--- /dev/null
+++ b/libgo/go/net/interface_linux_test.go
@@ -0,0 +1,133 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package net
+
+import (
+	"fmt"
+	"os/exec"
+	"testing"
+)
+
+func (ti *testInterface) setBroadcast(suffix int) error {
+	ti.name = fmt.Sprintf("gotest%d", suffix)
+	xname, err := exec.LookPath("ip")
+	if err != nil {
+		return err
+	}
+	ti.setupCmds = append(ti.setupCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "link", "add", ti.name, "type", "dummy"},
+	})
+	ti.setupCmds = append(ti.setupCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "address", "add", ti.local, "peer", ti.remote, "dev", ti.name},
+	})
+	ti.teardownCmds = append(ti.teardownCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "address", "del", ti.local, "peer", ti.remote, "dev", ti.name},
+	})
+	ti.teardownCmds = append(ti.teardownCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "link", "delete", ti.name, "type", "dummy"},
+	})
+	return nil
+}
+
+func (ti *testInterface) setLinkLocal(suffix int) error {
+	ti.name = fmt.Sprintf("gotest%d", suffix)
+	xname, err := exec.LookPath("ip")
+	if err != nil {
+		return err
+	}
+	ti.setupCmds = append(ti.setupCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "link", "add", ti.name, "type", "dummy"},
+	})
+	ti.setupCmds = append(ti.setupCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "address", "add", ti.local, "dev", ti.name},
+	})
+	ti.teardownCmds = append(ti.teardownCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "address", "del", ti.local, "dev", ti.name},
+	})
+	ti.teardownCmds = append(ti.teardownCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "link", "delete", ti.name, "type", "dummy"},
+	})
+	return nil
+}
+
+func (ti *testInterface) setPointToPoint(suffix int) error {
+	ti.name = fmt.Sprintf("gotest%d", suffix)
+	xname, err := exec.LookPath("ip")
+	if err != nil {
+		return err
+	}
+	ti.setupCmds = append(ti.setupCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "tunnel", "add", ti.name, "mode", "gre", "local", ti.local, "remote", ti.remote},
+	})
+	ti.setupCmds = append(ti.setupCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "address", "add", ti.local, "peer", ti.remote, "dev", ti.name},
+	})
+	ti.teardownCmds = append(ti.teardownCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "address", "del", ti.local, "peer", ti.remote, "dev", ti.name},
+	})
+	ti.teardownCmds = append(ti.teardownCmds, &exec.Cmd{
+		Path: xname,
+		Args: []string{"ip", "tunnel", "del", ti.name, "mode", "gre", "local", ti.local, "remote", ti.remote},
+	})
+	return nil
+}
+
+const (
+	numOfTestIPv4MCAddrs = 14
+	numOfTestIPv6MCAddrs = 18
+)
+
+var (
+	igmpInterfaceTable = []Interface{
+		{Name: "lo"},
+		{Name: "eth0"}, {Name: "eth1"}, {Name: "eth2"},
+		{Name: "eth0.100"}, {Name: "eth0.101"}, {Name: "eth0.102"}, {Name: "eth0.103"},
+		{Name: "device1tap2"},
+	}
+	igmp6InterfaceTable = []Interface{
+		{Name: "lo"},
+		{Name: "eth0"}, {Name: "eth1"}, {Name: "eth2"},
+		{Name: "eth0.100"}, {Name: "eth0.101"}, {Name: "eth0.102"}, {Name: "eth0.103"},
+		{Name: "device1tap2"},
+		{Name: "pan0"},
+	}
+)
+
+func TestParseProcNet(t *testing.T) {
+	defer func() {
+		if p := recover(); p != nil {
+			t.Fatalf("panicked: %v", p)
+		}
+	}()
+
+	var ifmat4 []Addr
+	for _, ifi := range igmpInterfaceTable {
+		ifmat := parseProcNetIGMP("testdata/igmp", &ifi)
+		ifmat4 = append(ifmat4, ifmat...)
+	}
+	if len(ifmat4) != numOfTestIPv4MCAddrs {
+		t.Fatalf("got %d; want %d", len(ifmat4), numOfTestIPv4MCAddrs)
+	}
+
+	var ifmat6 []Addr
+	for _, ifi := range igmp6InterfaceTable {
+		ifmat := parseProcNetIGMP6("testdata/igmp6", &ifi)
+		ifmat6 = append(ifmat6, ifmat...)
+	}
+	if len(ifmat6) != numOfTestIPv6MCAddrs {
+		t.Fatalf("got %d; want %d", len(ifmat6), numOfTestIPv6MCAddrs)
+	}
+}
diff --git a/libgo/go/net/interface_plan9.go b/libgo/go/net/interface_plan9.go
index 8fe9138..1295017 100644
--- a/libgo/go/net/interface_plan9.go
+++ b/libgo/go/net/interface_plan9.go
@@ -143,8 +143,8 @@
 		ifcs = []Interface{*ifi}
 	}
 
-	addrs := make([]Addr, len(ifcs))
-	for i, ifc := range ifcs {
+	var addrs []Addr
+	for _, ifc := range ifcs {
 		status := ifc.Name + "/status"
 		statusf, err := open(status)
 		if err != nil {
@@ -157,39 +157,36 @@
 		if _, ok := statusf.readLine(); !ok {
 			return nil, errors.New("cannot read header line for interface: " + status)
 		}
-		line, ok := statusf.readLine()
-		if !ok {
-			return nil, errors.New("cannot read IP address for interface: " + status)
-		}
 
-		// This assumes only a single address for the interface.
-		fields := getFields(line)
-		if len(fields) < 1 {
-			return nil, errors.New("cannot parse IP address for interface: " + status)
-		}
-		addr := fields[0]
-		ip := ParseIP(addr)
-		if ip == nil {
-			return nil, errors.New("cannot parse IP address for interface: " + status)
-		}
+		for line, ok := statusf.readLine(); ok; line, ok = statusf.readLine() {
+			fields := getFields(line)
+			if len(fields) < 1 {
+				return nil, errors.New("cannot parse IP address for interface: " + status)
+			}
+			addr := fields[0]
+			ip := ParseIP(addr)
+			if ip == nil {
+				return nil, errors.New("cannot parse IP address for interface: " + status)
+			}
 
-		// The mask is represented as CIDR relative to the IPv6 address.
-		// Plan 9 internal representation is always IPv6.
-		maskfld := fields[1]
-		maskfld = maskfld[1:]
-		pfxlen, _, ok := dtoi(maskfld)
-		if !ok {
-			return nil, errors.New("cannot parse network mask for interface: " + status)
-		}
-		var mask IPMask
-		if ip.To4() != nil { // IPv4 or IPv6 IPv4-mapped address
-			mask = CIDRMask(pfxlen-8*len(v4InV6Prefix), 8*IPv4len)
-		}
-		if ip.To16() != nil && ip.To4() == nil { // IPv6 address
-			mask = CIDRMask(pfxlen, 8*IPv6len)
-		}
+			// The mask is represented as CIDR relative to the IPv6 address.
+			// Plan 9 internal representation is always IPv6.
+			maskfld := fields[1]
+			maskfld = maskfld[1:]
+			pfxlen, _, ok := dtoi(maskfld)
+			if !ok {
+				return nil, errors.New("cannot parse network mask for interface: " + status)
+			}
+			var mask IPMask
+			if ip.To4() != nil { // IPv4 or IPv6 IPv4-mapped address
+				mask = CIDRMask(pfxlen-8*len(v4InV6Prefix), 8*IPv4len)
+			}
+			if ip.To16() != nil && ip.To4() == nil { // IPv6 address
+				mask = CIDRMask(pfxlen, 8*IPv6len)
+			}
 
-		addrs[i] = &IPNet{IP: ip, Mask: mask}
+			addrs = append(addrs, &IPNet{IP: ip, Mask: mask})
+		}
 	}
 
 	return addrs, nil
diff --git a/libgo/go/net/interface_stub.go b/libgo/go/net/interface_stub.go
index d8afd5e..437b9eb 100644
--- a/libgo/go/net/interface_stub.go
+++ b/libgo/go/net/interface_stub.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl hurd js,wasm
+// +build hurd js,wasm
 
 package net
 
diff --git a/libgo/go/net/interface_test.go b/libgo/go/net/interface_test.go
index fb6032f..b2ef21e 100644
--- a/libgo/go/net/interface_test.go
+++ b/libgo/go/net/interface_test.go
@@ -278,7 +278,7 @@
 
 func checkMulticastStats(ifStats *ifStats, uniStats, multiStats *routeStats) error {
 	switch runtime.GOOS {
-	case "aix", "dragonfly", "nacl", "netbsd", "openbsd", "plan9", "solaris", "illumos":
+	case "aix", "dragonfly", "netbsd", "openbsd", "plan9", "solaris", "illumos":
 	default:
 		// Test the existence of connected multicast route
 		// clones for IPv4. Unlike IPv6, IPv4 multicast
diff --git a/libgo/go/net/interface_unix_test.go b/libgo/go/net/interface_unix_test.go
new file mode 100644
index 0000000..6a2b7f1
--- /dev/null
+++ b/libgo/go/net/interface_unix_test.go
@@ -0,0 +1,212 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin dragonfly freebsd linux netbsd openbsd
+
+package net
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"runtime"
+	"strings"
+	"testing"
+	"time"
+)
+
+type testInterface struct {
+	name         string
+	local        string
+	remote       string
+	setupCmds    []*exec.Cmd
+	teardownCmds []*exec.Cmd
+}
+
+func (ti *testInterface) setup() error {
+	for _, cmd := range ti.setupCmds {
+		if out, err := cmd.CombinedOutput(); err != nil {
+			return fmt.Errorf("args=%v out=%q err=%v", cmd.Args, string(out), err)
+		}
+	}
+	return nil
+}
+
+func (ti *testInterface) teardown() error {
+	for _, cmd := range ti.teardownCmds {
+		if out, err := cmd.CombinedOutput(); err != nil {
+			return fmt.Errorf("args=%v out=%q err=%v ", cmd.Args, string(out), err)
+		}
+	}
+	return nil
+}
+
+func TestPointToPointInterface(t *testing.T) {
+	if testing.Short() {
+		t.Skip("avoid external network")
+	}
+	if runtime.GOOS == "darwin" {
+		t.Skipf("not supported on %s", runtime.GOOS)
+	}
+	if os.Getuid() != 0 {
+		t.Skip("must be root")
+	}
+
+	// We suppose that using IPv4 link-local addresses doesn't
+	// harm anyone.
+	local, remote := "169.254.0.1", "169.254.0.254"
+	ip := ParseIP(remote)
+	for i := 0; i < 3; i++ {
+		ti := &testInterface{local: local, remote: remote}
+		if err := ti.setPointToPoint(5963 + i); err != nil {
+			t.Skipf("test requires external command: %v", err)
+		}
+		if err := ti.setup(); err != nil {
+			if e := err.Error(); strings.Contains(e, "No such device") && strings.Contains(e, "gre0") {
+				t.Skip("skipping test; no gre0 device. likely running in container?")
+			}
+			t.Fatal(err)
+		} else {
+			time.Sleep(3 * time.Millisecond)
+		}
+		ift, err := Interfaces()
+		if err != nil {
+			ti.teardown()
+			t.Fatal(err)
+		}
+		for _, ifi := range ift {
+			if ti.name != ifi.Name {
+				continue
+			}
+			ifat, err := ifi.Addrs()
+			if err != nil {
+				ti.teardown()
+				t.Fatal(err)
+			}
+			for _, ifa := range ifat {
+				if ip.Equal(ifa.(*IPNet).IP) {
+					ti.teardown()
+					t.Fatalf("got %v", ifa)
+				}
+			}
+		}
+		if err := ti.teardown(); err != nil {
+			t.Fatal(err)
+		} else {
+			time.Sleep(3 * time.Millisecond)
+		}
+	}
+}
+
+func TestInterfaceArrivalAndDeparture(t *testing.T) {
+	if testing.Short() {
+		t.Skip("avoid external network")
+	}
+	if os.Getuid() != 0 {
+		t.Skip("must be root")
+	}
+
+	// We suppose that using IPv4 link-local addresses and the
+	// dot1Q ID for Token Ring and FDDI doesn't harm anyone.
+	local, remote := "169.254.0.1", "169.254.0.254"
+	ip := ParseIP(remote)
+	for _, vid := range []int{1002, 1003, 1004, 1005} {
+		ift1, err := Interfaces()
+		if err != nil {
+			t.Fatal(err)
+		}
+		ti := &testInterface{local: local, remote: remote}
+		if err := ti.setBroadcast(vid); err != nil {
+			t.Skipf("test requires external command: %v", err)
+		}
+		if err := ti.setup(); err != nil {
+			t.Fatal(err)
+		} else {
+			time.Sleep(3 * time.Millisecond)
+		}
+		ift2, err := Interfaces()
+		if err != nil {
+			ti.teardown()
+			t.Fatal(err)
+		}
+		if len(ift2) <= len(ift1) {
+			for _, ifi := range ift1 {
+				t.Logf("before: %v", ifi)
+			}
+			for _, ifi := range ift2 {
+				t.Logf("after: %v", ifi)
+			}
+			ti.teardown()
+			t.Fatalf("got %v; want gt %v", len(ift2), len(ift1))
+		}
+		for _, ifi := range ift2 {
+			if ti.name != ifi.Name {
+				continue
+			}
+			ifat, err := ifi.Addrs()
+			if err != nil {
+				ti.teardown()
+				t.Fatal(err)
+			}
+			for _, ifa := range ifat {
+				if ip.Equal(ifa.(*IPNet).IP) {
+					ti.teardown()
+					t.Fatalf("got %v", ifa)
+				}
+			}
+		}
+		if err := ti.teardown(); err != nil {
+			t.Fatal(err)
+		} else {
+			time.Sleep(3 * time.Millisecond)
+		}
+		ift3, err := Interfaces()
+		if err != nil {
+			t.Fatal(err)
+		}
+		if len(ift3) >= len(ift2) {
+			for _, ifi := range ift2 {
+				t.Logf("before: %v", ifi)
+			}
+			for _, ifi := range ift3 {
+				t.Logf("after: %v", ifi)
+			}
+			t.Fatalf("got %v; want lt %v", len(ift3), len(ift2))
+		}
+	}
+}
+
+func TestInterfaceArrivalAndDepartureZoneCache(t *testing.T) {
+	if testing.Short() {
+		t.Skip("avoid external network")
+	}
+	if os.Getuid() != 0 {
+		t.Skip("must be root")
+	}
+
+	// Ensure zoneCache is filled:
+	_, _ = Listen("tcp", "[fe80::1%nonexistent]:0")
+
+	ti := &testInterface{local: "fe80::1"}
+	if err := ti.setLinkLocal(0); err != nil {
+		t.Skipf("test requires external command: %v", err)
+	}
+	if err := ti.setup(); err != nil {
+		t.Fatal(err)
+	}
+	defer ti.teardown()
+
+	time.Sleep(3 * time.Millisecond)
+
+	// If Listen fails (on Linux with “bind: invalid argument”), zoneCache was
+	// not updated when encountering a nonexistent interface:
+	ln, err := Listen("tcp", "[fe80::1%"+ti.name+"]:0")
+	if err != nil {
+		t.Fatal(err)
+	}
+	ln.Close()
+	if err := ti.teardown(); err != nil {
+		t.Fatal(err)
+	}
+}
diff --git a/libgo/go/net/interface_windows.go b/libgo/go/net/interface_windows.go
index 28b0a65..5449432 100644
--- a/libgo/go/net/interface_windows.go
+++ b/libgo/go/net/interface_windows.go
@@ -58,7 +58,7 @@
 		if ifindex == 0 || ifindex == int(index) {
 			ifi := Interface{
 				Index: int(index),
-				Name:  syscall.UTF16ToString((*(*[10000]uint16)(unsafe.Pointer(aa.FriendlyName)))[:]),
+				Name:  windows.UTF16PtrToString(aa.FriendlyName, 10000),
 			}
 			if aa.OperStatus == windows.IfOperStatusUp {
 				ifi.Flags |= FlagUp
diff --git a/libgo/go/net/internal/socktest/switch_unix.go b/libgo/go/net/internal/socktest/switch_unix.go
index 2995913..4c037ba 100644
--- a/libgo/go/net/internal/socktest/switch_unix.go
+++ b/libgo/go/net/internal/socktest/switch_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package socktest
 
diff --git a/libgo/go/net/internal/socktest/sys_unix.go b/libgo/go/net/internal/socktest/sys_unix.go
index 81c7fb6..fbbffc6 100644
--- a/libgo/go/net/internal/socktest/sys_unix.go
+++ b/libgo/go/net/internal/socktest/sys_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package socktest
 
diff --git a/libgo/go/net/ip.go b/libgo/go/net/ip.go
index 1a1d0e7..9d1223e 100644
--- a/libgo/go/net/ip.go
+++ b/libgo/go/net/ip.go
@@ -31,7 +31,10 @@
 // be an IPv4 address.
 type IP []byte
 
-// An IP mask is an IP address.
+// An IPMask is a bitmask that can be used to manipulate
+// IP addresses for IP addressing and routing.
+//
+// See type IPNet and func ParseCIDR for details.
 type IPMask []byte
 
 // An IPNet represents an IP network.
@@ -65,8 +68,8 @@
 	return p
 }
 
-// CIDRMask returns an IPMask consisting of `ones' 1 bits
-// followed by 0s up to a total length of `bits' bits.
+// CIDRMask returns an IPMask consisting of 'ones' 1 bits
+// followed by 0s up to a total length of 'bits' bits.
 // For a mask of this form, CIDRMask is the inverse of IPMask.Size.
 func CIDRMask(ones, bits int) IPMask {
 	if bits != 8*IPv4len && bits != 8*IPv6len {
diff --git a/libgo/go/net/iprawsock.go b/libgo/go/net/iprawsock.go
index 8a9c265..f18331a 100644
--- a/libgo/go/net/iprawsock.go
+++ b/libgo/go/net/iprawsock.go
@@ -21,7 +21,7 @@
 // change the behavior of these methods; use Read or ReadMsgIP
 // instead.
 
-// BUG(mikio): On JS, NaCl and Plan 9, methods and functions related
+// BUG(mikio): On JS and Plan 9, methods and functions related
 // to IPConn are not implemented.
 
 // BUG(mikio): On Windows, the File method of IPConn is not
diff --git a/libgo/go/net/iprawsock_posix.go b/libgo/go/net/iprawsock_posix.go
index a14c629..fdb3913 100644
--- a/libgo/go/net/iprawsock_posix.go
+++ b/libgo/go/net/iprawsock_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package net
 
diff --git a/libgo/go/net/ipsock_plan9.go b/libgo/go/net/ipsock_plan9.go
index d226585..93f0f4e 100644
--- a/libgo/go/net/ipsock_plan9.go
+++ b/libgo/go/net/ipsock_plan9.go
@@ -227,7 +227,7 @@
 	_, err = f.WriteString("announce " + dest)
 	if err != nil {
 		f.Close()
-		return nil, err
+		return nil, &OpError{Op: "announce", Net: net, Source: laddr, Addr: nil, Err: err}
 	}
 	laddr, err = readPlan9Addr(proto, netdir+"/"+proto+"/"+name+"/local")
 	if err != nil {
diff --git a/libgo/go/net/ipsock_posix.go b/libgo/go/net/ipsock_posix.go
index 5bf5342..84e72d5 100644
--- a/libgo/go/net/ipsock_posix.go
+++ b/libgo/go/net/ipsock_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package net
 
@@ -134,7 +134,7 @@
 }
 
 func internetSocket(ctx context.Context, net string, laddr, raddr sockaddr, sotype, proto int, mode string, ctrlFn func(string, string, syscall.RawConn) error) (fd *netFD, err error) {
-	if (runtime.GOOS == "aix" || runtime.GOOS == "windows" || runtime.GOOS == "openbsd" || runtime.GOOS == "nacl") && mode == "dial" && raddr.isWildcard() {
+	if (runtime.GOOS == "aix" || runtime.GOOS == "windows" || runtime.GOOS == "openbsd") && mode == "dial" && raddr.isWildcard() {
 		raddr = raddr.toLocal(net)
 	}
 	family, ipv6only := favoriteAddrFamily(net, laddr, raddr, mode)
@@ -162,7 +162,7 @@
 		// of IP node.
 		//
 		// When the IP node supports IPv4-mapped IPv6 address,
-		// we allow an listener to listen to the wildcard
+		// we allow a listener to listen to the wildcard
 		// address of both IP addressing spaces by specifying
 		// IPv6 wildcard address.
 		if len(ip) == 0 || ip.Equal(IPv4zero) {
diff --git a/libgo/go/net/listen_test.go b/libgo/go/net/listen_test.go
index fef2b64..d8c7209 100644
--- a/libgo/go/net/listen_test.go
+++ b/libgo/go/net/listen_test.go
@@ -224,7 +224,7 @@
 // to be greater than or equal to 4.4.
 func TestDualStackTCPListener(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv4() || !supportsIPv6() {
@@ -314,7 +314,7 @@
 // to be greater than or equal to 4.4.
 func TestDualStackUDPListener(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 	if !supportsIPv4() || !supportsIPv6() {
@@ -532,7 +532,7 @@
 	testenv.MustHaveExternalNetwork(t)
 
 	switch runtime.GOOS {
-	case "android", "nacl", "plan9":
+	case "android", "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	case "solaris", "illumos":
 		t.Skipf("not supported on solaris or illumos, see golang.org/issue/7399")
@@ -733,7 +733,7 @@
 
 func TestListenConfigControl(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
diff --git a/libgo/go/net/lookup.go b/libgo/go/net/lookup.go
index 24d0d25..9cebd10 100644
--- a/libgo/go/net/lookup.go
+++ b/libgo/go/net/lookup.go
@@ -27,8 +27,7 @@
 }
 
 // services contains minimal mappings between services names and port
-// numbers for platforms that don't have a complete list of port numbers
-// (some Solaris distros, nacl, etc).
+// numbers for platforms that don't have a complete list of port numbers.
 //
 // See https://www.iana.org/assignments/service-names-port-numbers
 //
diff --git a/libgo/go/net/lookup_fake.go b/libgo/go/net/lookup_fake.go
index 6c8a151..3b3c39b 100644
--- a/libgo/go/net/lookup_fake.go
+++ b/libgo/go/net/lookup_fake.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl js,wasm
+// +build js,wasm
 
 package net
 
diff --git a/libgo/go/net/lookup_test.go b/libgo/go/net/lookup_test.go
index dd599c7..8a41510 100644
--- a/libgo/go/net/lookup_test.go
+++ b/libgo/go/net/lookup_test.go
@@ -21,6 +21,10 @@
 	"time"
 )
 
+func hasSuffixFold(s, suffix string) bool {
+	return strings.HasSuffix(strings.ToLower(s), strings.ToLower(suffix))
+}
+
 func lookupLocalhost(ctx context.Context, fn func(context.Context, string, string) ([]IPAddr, error), network, host string) ([]IPAddr, error) {
 	switch host {
 	case "localhost":
@@ -97,11 +101,11 @@
 		if len(srvs) == 0 {
 			t.Error("got no record")
 		}
-		if !strings.HasSuffix(cname, tt.cname) {
+		if !hasSuffixFold(cname, tt.cname) {
 			t.Errorf("got %s; want %s", cname, tt.cname)
 		}
 		for _, srv := range srvs {
-			if !strings.HasSuffix(srv.Target, tt.target) {
+			if !hasSuffixFold(srv.Target, tt.target) {
 				t.Errorf("got %v; want a record containing %s", srv, tt.target)
 			}
 		}
@@ -147,7 +151,7 @@
 			t.Error("got no record")
 		}
 		for _, mx := range mxs {
-			if !strings.HasSuffix(mx.Host, tt.host) {
+			if !hasSuffixFold(mx.Host, tt.host) {
 				t.Errorf("got %v; want a record containing %s", mx, tt.host)
 			}
 		}
@@ -193,7 +197,7 @@
 			t.Error("got no record")
 		}
 		for _, ns := range nss {
-			if !strings.HasSuffix(ns.Host, tt.host) {
+			if !hasSuffixFold(ns.Host, tt.host) {
 				t.Errorf("got %v; want a record containing %s", ns, tt.host)
 			}
 		}
@@ -279,7 +283,7 @@
 			t.Error("got no record")
 		}
 		for _, name := range names {
-			if !strings.HasSuffix(name, ".google.com.") && !strings.HasSuffix(name, ".google.") {
+			if !hasSuffixFold(name, ".google.com.") && !hasSuffixFold(name, ".google.") {
 				t.Errorf("got %q; want a record ending in .google.com. or .google.", name)
 			}
 		}
@@ -371,7 +375,7 @@
 			}
 			t.Fatal(err)
 		}
-		if !strings.HasSuffix(cname, tt.cname) {
+		if !hasSuffixFold(cname, tt.cname) {
 			t.Errorf("got %s; want a record containing %s", cname, tt.cname)
 		}
 	}
@@ -656,7 +660,7 @@
 		t.Errorf("LookupAddr(8.8.8.8): %v (mode=%v)", err, mode)
 	} else {
 		for _, name := range names {
-			if !strings.HasSuffix(name, ".google.com.") && !strings.HasSuffix(name, ".google.") {
+			if !hasSuffixFold(name, ".google.com.") && !hasSuffixFold(name, ".google.") {
 				t.Errorf("LookupAddr(8.8.8.8) = %v, want names ending in .google.com or .google with trailing dot (mode=%v)", names, mode)
 				break
 			}
@@ -677,7 +681,7 @@
 		t.Errorf("LookupMX(google.com): %v (mode=%v)", err, mode)
 	} else {
 		for _, mx := range mxs {
-			if !strings.HasSuffix(mx.Host, ".google.com.") {
+			if !hasSuffixFold(mx.Host, ".google.com.") {
 				t.Errorf("LookupMX(google.com) = %v, want names ending in .google.com. with trailing dot (mode=%v)", mxString(mxs), mode)
 				break
 			}
@@ -690,7 +694,7 @@
 		t.Errorf("LookupNS(google.com): %v (mode=%v)", err, mode)
 	} else {
 		for _, ns := range nss {
-			if !strings.HasSuffix(ns.Host, ".google.com.") {
+			if !hasSuffixFold(ns.Host, ".google.com.") {
 				t.Errorf("LookupNS(google.com) = %v, want names ending in .google.com. with trailing dot (mode=%v)", nsString(nss), mode)
 				break
 			}
@@ -702,11 +706,11 @@
 		testenv.SkipFlakyNet(t)
 		t.Errorf("LookupSRV(xmpp-server, tcp, google.com): %v (mode=%v)", err, mode)
 	} else {
-		if !strings.HasSuffix(cname, ".google.com.") {
+		if !hasSuffixFold(cname, ".google.com.") {
 			t.Errorf("LookupSRV(xmpp-server, tcp, google.com) returned cname=%v, want name ending in .google.com. with trailing dot (mode=%v)", cname, mode)
 		}
 		for _, srv := range srvs {
-			if !strings.HasSuffix(srv.Target, ".google.com.") {
+			if !hasSuffixFold(srv.Target, ".google.com.") {
 				t.Errorf("LookupSRV(xmpp-server, tcp, google.com) returned addrs=%v, want names ending in .google.com. with trailing dot (mode=%v)", srvString(srvs), mode)
 				break
 			}
@@ -856,10 +860,6 @@
 }
 
 func TestLookupNonLDH(t *testing.T) {
-	if runtime.GOOS == "nacl" {
-		t.Skip("skip on nacl")
-	}
-
 	defer dnsWaitGroup.Wait()
 
 	if fixup := forceGoDNS(); fixup != nil {
@@ -884,10 +884,6 @@
 
 func TestLookupContextCancel(t *testing.T) {
 	mustHaveExternalNetwork(t)
-	if runtime.GOOS == "nacl" {
-		t.Skip("skip on nacl")
-	}
-
 	defer dnsWaitGroup.Wait()
 
 	ctx, ctxCancel := context.WithCancel(context.Background())
@@ -909,9 +905,6 @@
 // crashes if nil is used.
 func TestNilResolverLookup(t *testing.T) {
 	mustHaveExternalNetwork(t)
-	if runtime.GOOS == "nacl" {
-		t.Skip("skip on nacl")
-	}
 	var r *Resolver = nil
 	ctx := context.Background()
 
@@ -931,10 +924,6 @@
 // canceled lookups (see golang.org/issue/24178 for details).
 func TestLookupHostCancel(t *testing.T) {
 	mustHaveExternalNetwork(t)
-	if runtime.GOOS == "nacl" {
-		t.Skip("skip on nacl")
-	}
-
 	const (
 		google        = "www.google.com"
 		invalidDomain = "invalid.invalid" // RFC 2606 reserves .invalid
@@ -983,10 +972,11 @@
 // TestConcurrentPreferGoResolversDial tests that multiple resolvers with the
 // PreferGo option used concurrently are all dialed properly.
 func TestConcurrentPreferGoResolversDial(t *testing.T) {
-	// The windows implementation of the resolver does not use the Dial
-	// function.
-	if runtime.GOOS == "windows" {
-		t.Skip("skip on windows")
+	// The windows and plan9 implementation of the resolver does not use
+	// the Dial function.
+	switch runtime.GOOS {
+	case "windows", "plan9":
+		t.Skipf("skip on %v", runtime.GOOS)
 	}
 
 	testenv.MustHaveExternalNetwork(t)
diff --git a/libgo/go/net/lookup_windows.go b/libgo/go/net/lookup_windows.go
index d7b28f5..7d5c941 100644
--- a/libgo/go/net/lookup_windows.go
+++ b/libgo/go/net/lookup_windows.go
@@ -6,6 +6,7 @@
 
 import (
 	"context"
+	"internal/syscall/windows"
 	"os"
 	"runtime"
 	"syscall"
@@ -233,7 +234,7 @@
 	defer syscall.DnsRecordListFree(r, 1)
 
 	resolved := resolveCNAME(syscall.StringToUTF16Ptr(name), r)
-	cname := syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(resolved))[:])
+	cname := windows.UTF16PtrToString(resolved, 256)
 	return absDomainName([]byte(cname)), nil
 }
 
@@ -277,7 +278,7 @@
 	mxs := make([]*MX, 0, 10)
 	for _, p := range validRecs(r, syscall.DNS_TYPE_MX, name) {
 		v := (*syscall.DNSMXData)(unsafe.Pointer(&p.Data[0]))
-		mxs = append(mxs, &MX{absDomainName([]byte(syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.NameExchange))[:]))), v.Preference})
+		mxs = append(mxs, &MX{absDomainName([]byte(windows.UTF16PtrToString(v.NameExchange, 256))), v.Preference})
 	}
 	byPref(mxs).sort()
 	return mxs, nil
@@ -317,8 +318,8 @@
 	for _, p := range validRecs(r, syscall.DNS_TYPE_TEXT, name) {
 		d := (*syscall.DNSTXTData)(unsafe.Pointer(&p.Data[0]))
 		s := ""
-		for _, v := range (*[1 << 10]*uint16)(unsafe.Pointer(&(d.StringArray[0])))[:d.StringCount] {
-			s += syscall.UTF16ToString((*[1 << 20]uint16)(unsafe.Pointer(v))[:])
+		for _, v := range (*[1 << 10]*uint16)(unsafe.Pointer(&(d.StringArray[0])))[:d.StringCount:d.StringCount] {
+			s += windows.UTF16PtrToString(v, 1<<20)
 		}
 		txts = append(txts, s)
 	}
@@ -343,7 +344,7 @@
 	ptrs := make([]string, 0, 10)
 	for _, p := range validRecs(r, syscall.DNS_TYPE_PTR, arpa) {
 		v := (*syscall.DNSPTRData)(unsafe.Pointer(&p.Data[0]))
-		ptrs = append(ptrs, absDomainName([]byte(syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.Host))[:]))))
+		ptrs = append(ptrs, absDomainName([]byte(windows.UTF16PtrToString(v.Host, 256))))
 	}
 	return ptrs, nil
 }
@@ -358,7 +359,8 @@
 	}
 	rec := make([]*syscall.DNSRecord, 0, 10)
 	for p := r; p != nil; p = p.Next {
-		if p.Dw&dnsSectionMask != syscall.DnsSectionAnswer {
+		// in case of a local machine, DNS records are returned with DNSREC_QUESTION flag instead of DNS_ANSWER
+		if p.Dw&dnsSectionMask != syscall.DnsSectionAnswer && p.Dw&dnsSectionMask != syscall.DnsSectionQuestion {
 			continue
 		}
 		if p.Type != dnstype {
@@ -374,7 +376,7 @@
 
 // returns the last CNAME in chain
 func resolveCNAME(name *uint16, r *syscall.DNSRecord) *uint16 {
-	// limit cname resolving to 10 in case of a infinite CNAME loop
+	// limit cname resolving to 10 in case of an infinite CNAME loop
 Cname:
 	for cnameloop := 0; cnameloop < 10; cnameloop++ {
 		for p := r; p != nil; p = p.Next {
diff --git a/libgo/go/net/lookup_windows_test.go b/libgo/go/net/lookup_windows_test.go
new file mode 100644
index 0000000..62b61ed
--- /dev/null
+++ b/libgo/go/net/lookup_windows_test.go
@@ -0,0 +1,317 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package net
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"internal/testenv"
+	"os/exec"
+	"reflect"
+	"regexp"
+	"sort"
+	"strings"
+	"testing"
+)
+
+var nslookupTestServers = []string{"mail.golang.com", "gmail.com"}
+var lookupTestIPs = []string{"8.8.8.8", "1.1.1.1"}
+
+func toJson(v interface{}) string {
+	data, _ := json.Marshal(v)
+	return string(data)
+}
+
+func TestNSLookupMX(t *testing.T) {
+	testenv.MustHaveExternalNetwork(t)
+
+	for _, server := range nslookupTestServers {
+		mx, err := LookupMX(server)
+		if err != nil {
+			t.Error(err)
+			continue
+		}
+		if len(mx) == 0 {
+			t.Errorf("no results")
+			continue
+		}
+		expected, err := nslookupMX(server)
+		if err != nil {
+			t.Logf("skipping failed nslookup %s test: %s", server, err)
+		}
+		sort.Sort(byPrefAndHost(expected))
+		sort.Sort(byPrefAndHost(mx))
+		if !reflect.DeepEqual(expected, mx) {
+			t.Errorf("different results %s:\texp:%v\tgot:%v", server, toJson(expected), toJson(mx))
+		}
+	}
+}
+
+func TestNSLookupCNAME(t *testing.T) {
+	testenv.MustHaveExternalNetwork(t)
+
+	for _, server := range nslookupTestServers {
+		cname, err := LookupCNAME(server)
+		if err != nil {
+			t.Errorf("failed %s: %s", server, err)
+			continue
+		}
+		if cname == "" {
+			t.Errorf("no result %s", server)
+		}
+		expected, err := nslookupCNAME(server)
+		if err != nil {
+			t.Logf("skipping failed nslookup %s test: %s", server, err)
+			continue
+		}
+		if expected != cname {
+			t.Errorf("different results %s:\texp:%v\tgot:%v", server, expected, cname)
+		}
+	}
+}
+
+func TestNSLookupNS(t *testing.T) {
+	testenv.MustHaveExternalNetwork(t)
+
+	for _, server := range nslookupTestServers {
+		ns, err := LookupNS(server)
+		if err != nil {
+			t.Errorf("failed %s: %s", server, err)
+			continue
+		}
+		if len(ns) == 0 {
+			t.Errorf("no results")
+			continue
+		}
+		expected, err := nslookupNS(server)
+		if err != nil {
+			t.Logf("skipping failed nslookup %s test: %s", server, err)
+			continue
+		}
+		sort.Sort(byHost(expected))
+		sort.Sort(byHost(ns))
+		if !reflect.DeepEqual(expected, ns) {
+			t.Errorf("different results %s:\texp:%v\tgot:%v", toJson(server), toJson(expected), ns)
+		}
+	}
+}
+
+func TestNSLookupTXT(t *testing.T) {
+	testenv.MustHaveExternalNetwork(t)
+
+	for _, server := range nslookupTestServers {
+		txt, err := LookupTXT(server)
+		if err != nil {
+			t.Errorf("failed %s: %s", server, err)
+			continue
+		}
+		if len(txt) == 0 {
+			t.Errorf("no results")
+			continue
+		}
+		expected, err := nslookupTXT(server)
+		if err != nil {
+			t.Logf("skipping failed nslookup %s test: %s", server, err)
+			continue
+		}
+		sort.Strings(expected)
+		sort.Strings(txt)
+		if !reflect.DeepEqual(expected, txt) {
+			t.Errorf("different results %s:\texp:%v\tgot:%v", server, toJson(expected), toJson(txt))
+		}
+	}
+}
+
+func TestLookupLocalPTR(t *testing.T) {
+	testenv.MustHaveExternalNetwork(t)
+
+	addr, err := localIP()
+	if err != nil {
+		t.Errorf("failed to get local ip: %s", err)
+	}
+	names, err := LookupAddr(addr.String())
+	if err != nil {
+		t.Errorf("failed %s: %s", addr, err)
+	}
+	if len(names) == 0 {
+		t.Errorf("no results")
+	}
+	expected, err := lookupPTR(addr.String())
+	if err != nil {
+		t.Logf("skipping failed lookup %s test: %s", addr.String(), err)
+	}
+	sort.Strings(expected)
+	sort.Strings(names)
+	if !reflect.DeepEqual(expected, names) {
+		t.Errorf("different results %s:\texp:%v\tgot:%v", addr, toJson(expected), toJson(names))
+	}
+}
+
+func TestLookupPTR(t *testing.T) {
+	testenv.MustHaveExternalNetwork(t)
+
+	for _, addr := range lookupTestIPs {
+		names, err := LookupAddr(addr)
+		if err != nil {
+			t.Errorf("failed %s: %s", addr, err)
+		}
+		if len(names) == 0 {
+			t.Errorf("no results")
+		}
+		expected, err := lookupPTR(addr)
+		if err != nil {
+			t.Logf("skipping failed lookup %s test: %s", addr, err)
+		}
+		sort.Strings(expected)
+		sort.Strings(names)
+		if !reflect.DeepEqual(expected, names) {
+			t.Errorf("different results %s:\texp:%v\tgot:%v", addr, toJson(expected), toJson(names))
+		}
+	}
+}
+
+type byPrefAndHost []*MX
+
+func (s byPrefAndHost) Len() int { return len(s) }
+func (s byPrefAndHost) Less(i, j int) bool {
+	if s[i].Pref != s[j].Pref {
+		return s[i].Pref < s[j].Pref
+	}
+	return s[i].Host < s[j].Host
+}
+func (s byPrefAndHost) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
+
+type byHost []*NS
+
+func (s byHost) Len() int           { return len(s) }
+func (s byHost) Less(i, j int) bool { return s[i].Host < s[j].Host }
+func (s byHost) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
+
+func nslookup(qtype, name string) (string, error) {
+	var out bytes.Buffer
+	var err bytes.Buffer
+	cmd := exec.Command("nslookup", "-querytype="+qtype, name)
+	cmd.Stdout = &out
+	cmd.Stderr = &err
+	if err := cmd.Run(); err != nil {
+		return "", err
+	}
+	r := strings.ReplaceAll(out.String(), "\r\n", "\n")
+	// nslookup stderr output contains also debug information such as
+	// "Non-authoritative answer" and it doesn't return the correct errcode
+	if strings.Contains(err.String(), "can't find") {
+		return r, errors.New(err.String())
+	}
+	return r, nil
+}
+
+func nslookupMX(name string) (mx []*MX, err error) {
+	var r string
+	if r, err = nslookup("mx", name); err != nil {
+		return
+	}
+	mx = make([]*MX, 0, 10)
+	// linux nslookup syntax
+	// golang.org      mail exchanger = 2 alt1.aspmx.l.google.com.
+	rx := regexp.MustCompile(`(?m)^([a-z0-9.\-]+)\s+mail exchanger\s*=\s*([0-9]+)\s*([a-z0-9.\-]+)$`)
+	for _, ans := range rx.FindAllStringSubmatch(r, -1) {
+		pref, _, _ := dtoi(ans[2])
+		mx = append(mx, &MX{absDomainName([]byte(ans[3])), uint16(pref)})
+	}
+	// windows nslookup syntax
+	// gmail.com       MX preference = 30, mail exchanger = alt3.gmail-smtp-in.l.google.com
+	rx = regexp.MustCompile(`(?m)^([a-z0-9.\-]+)\s+MX preference\s*=\s*([0-9]+)\s*,\s*mail exchanger\s*=\s*([a-z0-9.\-]+)$`)
+	for _, ans := range rx.FindAllStringSubmatch(r, -1) {
+		pref, _, _ := dtoi(ans[2])
+		mx = append(mx, &MX{absDomainName([]byte(ans[3])), uint16(pref)})
+	}
+	return
+}
+
+func nslookupNS(name string) (ns []*NS, err error) {
+	var r string
+	if r, err = nslookup("ns", name); err != nil {
+		return
+	}
+	ns = make([]*NS, 0, 10)
+	// golang.org      nameserver = ns1.google.com.
+	rx := regexp.MustCompile(`(?m)^([a-z0-9.\-]+)\s+nameserver\s*=\s*([a-z0-9.\-]+)$`)
+	for _, ans := range rx.FindAllStringSubmatch(r, -1) {
+		ns = append(ns, &NS{absDomainName([]byte(ans[2]))})
+	}
+	return
+}
+
+func nslookupCNAME(name string) (cname string, err error) {
+	var r string
+	if r, err = nslookup("cname", name); err != nil {
+		return
+	}
+	// mail.golang.com canonical name = golang.org.
+	rx := regexp.MustCompile(`(?m)^([a-z0-9.\-]+)\s+canonical name\s*=\s*([a-z0-9.\-]+)$`)
+	// assumes the last CNAME is the correct one
+	last := name
+	for _, ans := range rx.FindAllStringSubmatch(r, -1) {
+		last = ans[2]
+	}
+	return absDomainName([]byte(last)), nil
+}
+
+func nslookupTXT(name string) (txt []string, err error) {
+	var r string
+	if r, err = nslookup("txt", name); err != nil {
+		return
+	}
+	txt = make([]string, 0, 10)
+	// linux
+	// golang.org      text = "v=spf1 redirect=_spf.google.com"
+
+	// windows
+	// golang.org      text =
+	//
+	//    "v=spf1 redirect=_spf.google.com"
+	rx := regexp.MustCompile(`(?m)^([a-z0-9.\-]+)\s+text\s*=\s*"(.*)"$`)
+	for _, ans := range rx.FindAllStringSubmatch(r, -1) {
+		txt = append(txt, ans[2])
+	}
+	return
+}
+
+func ping(name string) (string, error) {
+	cmd := exec.Command("ping", "-n", "1", "-a", name)
+	stdoutStderr, err := cmd.CombinedOutput()
+	if err != nil {
+		return "", fmt.Errorf("%v: %v", err, string(stdoutStderr))
+	}
+	r := strings.ReplaceAll(string(stdoutStderr), "\r\n", "\n")
+	return r, nil
+}
+
+func lookupPTR(name string) (ptr []string, err error) {
+	var r string
+	if r, err = ping(name); err != nil {
+		return
+	}
+	ptr = make([]string, 0, 10)
+	rx := regexp.MustCompile(`(?m)^Pinging\s+([a-zA-Z0-9.\-]+)\s+\[.*$`)
+	for _, ans := range rx.FindAllStringSubmatch(r, -1) {
+		ptr = append(ptr, ans[1]+".")
+	}
+	return
+}
+
+func localIP() (ip IP, err error) {
+	conn, err := Dial("udp", "golang.org:80")
+	if err != nil {
+		return nil, err
+	}
+	defer conn.Close()
+
+	localAddr := conn.LocalAddr().(*UDPAddr)
+
+	return localAddr.IP, nil
+}
diff --git a/libgo/go/net/mail/message.go b/libgo/go/net/mail/message.go
index 75207db..0781310 100644
--- a/libgo/go/net/mail/message.go
+++ b/libgo/go/net/mail/message.go
@@ -79,7 +79,7 @@
 	years := [...]string{"2006", "06"} // year = 4*DIGIT / 2*DIGIT
 	seconds := [...]string{":05", ""}  // second
 	// "-0700 (MST)" is not in RFC 5322, but is common.
-	zones := [...]string{"-0700", "MST", "-0700 (MST)"} // zone = (("+" / "-") 4DIGIT) / "GMT" / ...
+	zones := [...]string{"-0700", "MST"} // zone = (("+" / "-") 4DIGIT) / "GMT" / ...
 
 	for _, dow := range dows {
 		for _, day := range days {
@@ -98,6 +98,29 @@
 // ParseDate parses an RFC 5322 date string.
 func ParseDate(date string) (time.Time, error) {
 	dateLayoutsBuildOnce.Do(buildDateLayouts)
+	// CR and LF must match and are tolerated anywhere in the date field.
+	date = strings.ReplaceAll(date, "\r\n", "")
+	if strings.Index(date, "\r") != -1 {
+		return time.Time{}, errors.New("mail: header has a CR without LF")
+	}
+	// Re-using some addrParser methods which support obsolete text, i.e. non-printable ASCII
+	p := addrParser{date, nil}
+	p.skipSpace()
+
+	// RFC 5322: zone = (FWS ( "+" / "-" ) 4DIGIT) / obs-zone
+	// zone length is always 5 chars unless obsolete (obs-zone)
+	if ind := strings.IndexAny(p.s, "+-"); ind != -1 && len(p.s) >= ind+5 {
+		date = p.s[:ind+5]
+		p.s = p.s[ind+5:]
+	} else if ind := strings.Index(p.s, "T"); ind != -1 && len(p.s) >= ind+1 {
+		// The last letter T of the obsolete time zone is checked when no standard time zone is found.
+		// If T is misplaced, the date to parse is garbage.
+		date = p.s[:ind+1]
+		p.s = p.s[ind+1:]
+	}
+	if !p.skipCFWS() {
+		return time.Time{}, errors.New("mail: misformatted parenthetical comment")
+	}
 	for _, layout := range dateLayouts {
 		t, err := time.Parse(layout, date)
 		if err == nil {
diff --git a/libgo/go/net/mail/message_test.go b/libgo/go/net/mail/message_test.go
index 2950bc4..acab538 100644
--- a/libgo/go/net/mail/message_test.go
+++ b/libgo/go/net/mail/message_test.go
@@ -124,6 +124,157 @@
 	}
 }
 
+func TestDateParsingCFWS(t *testing.T) {
+	tests := []struct {
+		dateStr string
+		exp     time.Time
+		valid   bool
+	}{
+		// FWS-only. No date.
+		{
+			"   ",
+			// nil is not allowed
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			false,
+		},
+		// FWS is allowed before optional day of week.
+		{
+			"   Fri, 21 Nov 1997 09:55:06 -0600",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			true,
+		},
+		{
+			"21 Nov 1997 09:55:06 -0600",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			true,
+		},
+		{
+			"Fri 21 Nov 1997 09:55:06 -0600",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			false, // missing ,
+		},
+		// FWS is allowed before day of month but HTAB fails.
+		{
+			"Fri,        21 Nov 1997 09:55:06 -0600",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			true,
+		},
+		// FWS is allowed before and after year but HTAB fails.
+		{
+			"Fri, 21 Nov       1997     09:55:06 -0600",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			true,
+		},
+		// FWS is allowed before zone but HTAB is not handled. Obsolete timezone is handled.
+		{
+			"Fri, 21 Nov 1997 09:55:06           CST",
+			time.Time{},
+			true,
+		},
+		// FWS is allowed after date and a CRLF is already replaced.
+		{
+			"Fri, 21 Nov 1997 09:55:06           CST (no leading FWS and a trailing CRLF) \r\n",
+			time.Time{},
+			true,
+		},
+		// CFWS is a reduced set of US-ASCII where space and accentuated are obsolete. No error.
+		{
+			"Fri, 21    Nov 1997    09:55:06 -0600 (MDT and non-US-ASCII signs éèç )",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			true,
+		},
+		// CFWS is allowed after zone including a nested comment.
+		// Trailing FWS is allowed.
+		{
+			"Fri, 21 Nov 1997 09:55:06 -0600    \r\n (thisisa(valid)cfws)   \t ",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			true,
+		},
+		// CRLF is incomplete and misplaced.
+		{
+			"Fri, 21 Nov 1997 \r 09:55:06 -0600    \r\n (thisisa(valid)cfws)   \t ",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			false,
+		},
+		// CRLF is complete but misplaced. No error is returned.
+		{
+			"Fri, 21 Nov 199\r\n7  09:55:06 -0600    \r\n (thisisa(valid)cfws)   \t ",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			true, // should be false in the strict interpretation of RFC 5322.
+		},
+		// Invalid ASCII in date.
+		{
+			"Fri, 21 Nov 1997 ù 09:55:06 -0600    \r\n (thisisa(valid)cfws)   \t ",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			false,
+		},
+		// CFWS chars () in date.
+		{
+			"Fri, 21 Nov () 1997 09:55:06 -0600    \r\n (thisisa(valid)cfws)   \t ",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			false,
+		},
+		// Timezone is invalid but T is found in comment.
+		{
+			"Fri, 21 Nov 1997 09:55:06 -060    \r\n (Thisisa(valid)cfws)   \t ",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			false,
+		},
+		// Date has no month.
+		{
+			"Fri, 21  1997 09:55:06 -0600",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			false,
+		},
+		// Invalid month : OCT iso Oct
+		{
+			"Fri, 21 OCT 1997 09:55:06 CST",
+			time.Time{},
+			false,
+		},
+		// A too short time zone.
+		{
+			"Fri, 21 Nov 1997 09:55:06 -060",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			false,
+		},
+		// A too short obsolete time zone.
+		{
+			"Fri, 21  1997 09:55:06 GT",
+			time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
+			false,
+		},
+	}
+	for _, test := range tests {
+		hdr := Header{
+			"Date": []string{test.dateStr},
+		}
+		date, err := hdr.Date()
+		if err != nil && test.valid {
+			t.Errorf("Header(Date: %s).Date(): %v", test.dateStr, err)
+		} else if err == nil && test.exp.IsZero() {
+			// OK.  Used when exact result depends on the
+			// system's local zoneinfo.
+		} else if err == nil && !date.Equal(test.exp) && test.valid {
+			t.Errorf("Header(Date: %s).Date() = %+v, want %+v", test.dateStr, date, test.exp)
+		} else if err == nil && !test.valid { // an invalid expression was tested
+			t.Errorf("Header(Date: %s).Date() did not return an error but %v", test.dateStr, date)
+		}
+
+		date, err = ParseDate(test.dateStr)
+		if err != nil && test.valid {
+			t.Errorf("ParseDate(%s): %v", test.dateStr, err)
+		} else if err == nil && test.exp.IsZero() {
+			// OK.  Used when exact result depends on the
+			// system's local zoneinfo.
+		} else if err == nil && !test.valid { // an invalid expression was tested
+			t.Errorf("ParseDate(%s) did not return an error but %v", test.dateStr, date)
+		} else if err == nil && test.valid && !date.Equal(test.exp) {
+			t.Errorf("ParseDate(%s) = %+v, want %+v", test.dateStr, date, test.exp)
+		}
+	}
+}
+
 func TestAddressParsingError(t *testing.T) {
 	mustErrTestCases := [...]struct {
 		text        string
diff --git a/libgo/go/net/main_conf_test.go b/libgo/go/net/main_conf_test.go
index b535046..a92dff5 100644
--- a/libgo/go/net/main_conf_test.go
+++ b/libgo/go/net/main_conf_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !js,!nacl,!plan9,!windows
+// +build !js,!plan9,!windows
 
 package net
 
diff --git a/libgo/go/net/main_noconf_test.go b/libgo/go/net/main_noconf_test.go
index 55e3770..bac84aa 100644
--- a/libgo/go/net/main_noconf_test.go
+++ b/libgo/go/net/main_noconf_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build js,wasm nacl plan9 windows
+// +build js,wasm plan9 windows
 
 package net
 
diff --git a/libgo/go/net/main_unix_test.go b/libgo/go/net/main_unix_test.go
index af9f2d4..ef7e915 100644
--- a/libgo/go/net/main_unix_test.go
+++ b/libgo/go/net/main_unix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris
 
 package net
 
diff --git a/libgo/go/net/net_test.go b/libgo/go/net/net_test.go
index 463ae88..a740674 100644
--- a/libgo/go/net/net_test.go
+++ b/libgo/go/net/net_test.go
@@ -72,7 +72,7 @@
 
 func TestCloseWrite(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -285,7 +285,6 @@
 	}
 }
 
-// nacl was previous failing to reuse an address.
 func TestListenCloseListen(t *testing.T) {
 	const maxTries = 10
 	for tries := 0; tries < maxTries; tries++ {
@@ -302,7 +301,7 @@
 		}
 		ln, err = Listen("tcp", addr)
 		if err == nil {
-			// Success. nacl couldn't do this before.
+			// Success. (This test didn't always make it here earlier.)
 			ln.Close()
 			return
 		}
@@ -541,7 +540,7 @@
 		if err == nil {
 			return errors.New("Read succeeded unexpectedly")
 		} else if err == io.EOF {
-			// This happens on NaCl and Plan 9.
+			// This happens on Plan 9.
 			return nil
 		} else if ne, ok := err.(Error); !ok {
 			return fmt.Errorf("unexpected error %v", err)
diff --git a/libgo/go/net/platform_test.go b/libgo/go/net/platform_test.go
index 10f55c9..d35dfaa 100644
--- a/libgo/go/net/platform_test.go
+++ b/libgo/go/net/platform_test.go
@@ -37,13 +37,9 @@
 	ss := strings.Split(network, ":")
 	switch ss[0] {
 	case "ip+nopriv":
-		switch runtime.GOOS {
-		case "nacl":
-			return false
-		}
 	case "ip", "ip4", "ip6":
 		switch runtime.GOOS {
-		case "nacl", "plan9":
+		case "plan9":
 			return false
 		default:
 			if os.Getuid() != 0 {
@@ -52,7 +48,7 @@
 		}
 	case "unix", "unixgram":
 		switch runtime.GOOS {
-		case "android", "nacl", "plan9", "windows":
+		case "android", "plan9", "windows":
 			return false
 		case "aix":
 			return unixEnabledOnAIX
@@ -63,7 +59,7 @@
 		}
 	case "unixpacket":
 		switch runtime.GOOS {
-		case "aix", "android", "darwin", "nacl", "plan9", "windows":
+		case "aix", "android", "darwin", "plan9", "windows":
 			return false
 		case "netbsd":
 			// It passes on amd64 at least. 386 fails (Issue 22927). arm is unknown.
diff --git a/libgo/go/net/port_unix.go b/libgo/go/net/port_unix.go
index 6da6f5a..a3b402f 100644
--- a/libgo/go/net/port_unix.go
+++ b/libgo/go/net/port_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris nacl
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 // Read system port mappings from /etc/services
 
diff --git a/libgo/go/net/rawconn.go b/libgo/go/net/rawconn.go
index c40ea4a..c786354 100644
--- a/libgo/go/net/rawconn.go
+++ b/libgo/go/net/rawconn.go
@@ -15,7 +15,7 @@
 // deadlines. If the user-provided callback returns false, the Write
 // method will fail immediately.
 
-// BUG(mikio): On JS, NaCl and Plan 9, the Control, Read and Write
+// BUG(mikio): On JS and Plan 9, the Control, Read and Write
 // methods of syscall.RawConn are not implemented.
 
 type rawConn struct {
diff --git a/libgo/go/net/rawconn_stub_test.go b/libgo/go/net/rawconn_stub_test.go
index 0a033c1..cec977f 100644
--- a/libgo/go/net/rawconn_stub_test.go
+++ b/libgo/go/net/rawconn_stub_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build js,wasm nacl plan9
+// +build js,wasm plan9
 
 package net
 
diff --git a/libgo/go/net/rawconn_test.go b/libgo/go/net/rawconn_test.go
index 11900df..9a82f8f 100644
--- a/libgo/go/net/rawconn_test.go
+++ b/libgo/go/net/rawconn_test.go
@@ -15,7 +15,7 @@
 
 func TestRawConnReadWrite(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -175,7 +175,7 @@
 
 func TestRawConnControl(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
diff --git a/libgo/go/net/sendfile_stub.go b/libgo/go/net/sendfile_stub.go
index 6d338da..53bc53a 100644
--- a/libgo/go/net/sendfile_stub.go
+++ b/libgo/go/net/sendfile_stub.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin js,wasm nacl netbsd openbsd
+// +build aix darwin js,wasm netbsd openbsd
 
 package net
 
diff --git a/libgo/go/net/sendfile_test.go b/libgo/go/net/sendfile_test.go
index 911e613..13842a1 100644
--- a/libgo/go/net/sendfile_test.go
+++ b/libgo/go/net/sendfile_test.go
@@ -218,7 +218,7 @@
 // Test that sendfile doesn't put a pipe into blocking mode.
 func TestSendfilePipe(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9", "windows":
+	case "plan9", "windows":
 		// These systems don't support deadlines on pipes.
 		t.Skipf("skipping on %s", runtime.GOOS)
 	}
diff --git a/libgo/go/net/sendfile_windows.go b/libgo/go/net/sendfile_windows.go
index bccd8b1..59b1b0d 100644
--- a/libgo/go/net/sendfile_windows.go
+++ b/libgo/go/net/sendfile_windows.go
@@ -18,10 +18,8 @@
 // non-EOF error.
 //
 // if handled == false, sendFile performed no work.
-//
-// Note that sendfile for windows does not support >2GB file.
 func sendFile(fd *netFD, r io.Reader) (written int64, err error, handled bool) {
-	var n int64 = 0 // by default, copy until EOF
+	var n int64 = 0 // by default, copy until EOF.
 
 	lr, ok := r.(*io.LimitedReader)
 	if ok {
@@ -30,18 +28,20 @@
 			return 0, nil, true
 		}
 	}
+
 	f, ok := r.(*os.File)
 	if !ok {
 		return 0, nil, false
 	}
 
-	done, err := poll.SendFile(&fd.pfd, syscall.Handle(f.Fd()), n)
-
+	written, err = poll.SendFile(&fd.pfd, syscall.Handle(f.Fd()), n)
 	if err != nil {
-		return 0, wrapSyscallError("transmitfile", err), false
+		err = wrapSyscallError("transmitfile", err)
 	}
-	if lr != nil {
-		lr.N -= int64(done)
-	}
-	return int64(done), nil, true
+
+	// If any byte was copied, regardless of any error
+	// encountered mid-way, handled must be set to true.
+	handled = written > 0
+
+	return
 }
diff --git a/libgo/go/net/server_test.go b/libgo/go/net/server_test.go
index 1608beb..2673b87 100644
--- a/libgo/go/net/server_test.go
+++ b/libgo/go/net/server_test.go
@@ -56,71 +56,79 @@
 	const N = 3
 
 	for i, tt := range tcpServerTests {
-		if !testableListenArgs(tt.snet, tt.saddr, tt.taddr) {
-			t.Logf("skipping %s test", tt.snet+" "+tt.saddr+"<-"+tt.taddr)
-			continue
-		}
+		t.Run(tt.snet+" "+tt.saddr+"<-"+tt.taddr, func(t *testing.T) {
+			if !testableListenArgs(tt.snet, tt.saddr, tt.taddr) {
+				t.Skip("not testable")
+			}
 
-		ln, err := Listen(tt.snet, tt.saddr)
-		if err != nil {
-			if perr := parseDialError(err); perr != nil {
-				t.Error(perr)
-			}
-			t.Fatal(err)
-		}
-
-		var lss []*localServer
-		var tpchs []chan error
-		defer func() {
-			for _, ls := range lss {
-				ls.teardown()
-			}
-		}()
-		for i := 0; i < N; i++ {
-			ls, err := (&streamListener{Listener: ln}).newLocalServer()
-			if err != nil {
-				t.Fatal(err)
-			}
-			lss = append(lss, ls)
-			tpchs = append(tpchs, make(chan error, 1))
-		}
-		for i := 0; i < N; i++ {
-			ch := tpchs[i]
-			handler := func(ls *localServer, ln Listener) { transponder(ln, ch) }
-			if err := lss[i].buildup(handler); err != nil {
-				t.Fatal(err)
-			}
-		}
-
-		var trchs []chan error
-		for i := 0; i < N; i++ {
-			_, port, err := SplitHostPort(lss[i].Listener.Addr().String())
-			if err != nil {
-				t.Fatal(err)
-			}
-			d := Dialer{Timeout: someTimeout}
-			c, err := d.Dial(tt.tnet, JoinHostPort(tt.taddr, port))
+			ln, err := Listen(tt.snet, tt.saddr)
 			if err != nil {
 				if perr := parseDialError(err); perr != nil {
 					t.Error(perr)
 				}
 				t.Fatal(err)
 			}
-			defer c.Close()
-			trchs = append(trchs, make(chan error, 1))
-			go transceiver(c, []byte("TCP SERVER TEST"), trchs[i])
-		}
 
-		for _, ch := range trchs {
-			for err := range ch {
-				t.Errorf("#%d: %v", i, err)
+			var lss []*localServer
+			var tpchs []chan error
+			defer func() {
+				for _, ls := range lss {
+					ls.teardown()
+				}
+			}()
+			for i := 0; i < N; i++ {
+				ls, err := (&streamListener{Listener: ln}).newLocalServer()
+				if err != nil {
+					t.Fatal(err)
+				}
+				lss = append(lss, ls)
+				tpchs = append(tpchs, make(chan error, 1))
 			}
-		}
-		for _, ch := range tpchs {
-			for err := range ch {
-				t.Errorf("#%d: %v", i, err)
+			for i := 0; i < N; i++ {
+				ch := tpchs[i]
+				handler := func(ls *localServer, ln Listener) { transponder(ln, ch) }
+				if err := lss[i].buildup(handler); err != nil {
+					t.Fatal(err)
+				}
 			}
-		}
+
+			var trchs []chan error
+			for i := 0; i < N; i++ {
+				_, port, err := SplitHostPort(lss[i].Listener.Addr().String())
+				if err != nil {
+					t.Fatal(err)
+				}
+				d := Dialer{Timeout: someTimeout}
+				c, err := d.Dial(tt.tnet, JoinHostPort(tt.taddr, port))
+				if err != nil {
+					if perr := parseDialError(err); perr != nil {
+						t.Error(perr)
+					}
+					if tt.taddr == "::1" && os.Getenv("GO_BUILDER_NAME") == "darwin-amd64-10_12" && os.IsTimeout(err) {
+						// A suspected kernel bug in macOS 10.12 occasionally results in
+						// "i/o timeout" errors when dialing address ::1. The errors have not
+						// been observed on newer versions of the OS, so we don't plan to work
+						// around them. See https://golang.org/issue/32919.
+						t.Skipf("skipping due to error on known-flaky macOS 10.12 builder: %v", err)
+					}
+					t.Fatal(err)
+				}
+				defer c.Close()
+				trchs = append(trchs, make(chan error, 1))
+				go transceiver(c, []byte("TCP SERVER TEST"), trchs[i])
+			}
+
+			for _, ch := range trchs {
+				for err := range ch {
+					t.Errorf("#%d: %v", i, err)
+				}
+			}
+			for _, ch := range tpchs {
+				for err := range ch {
+					t.Errorf("#%d: %v", i, err)
+				}
+			}
+		})
 	}
 }
 
diff --git a/libgo/go/net/smtp/smtp_test.go b/libgo/go/net/smtp/smtp_test.go
index 8195f91..cfda079 100644
--- a/libgo/go/net/smtp/smtp_test.go
+++ b/libgo/go/net/smtp/smtp_test.go
@@ -9,13 +9,13 @@
 	"bytes"
 	"crypto/tls"
 	"crypto/x509"
+	"fmt"
 	"internal/testenv"
 	"io"
 	"net"
 	"net/textproto"
 	"runtime"
 	"strings"
-	"sync"
 	"testing"
 	"time"
 )
@@ -642,13 +642,13 @@
 		t.Fatalf("Unable to create listener: %v", err)
 	}
 	defer l.Close()
-	wg := sync.WaitGroup{}
-	var done = make(chan struct{})
+
+	errCh := make(chan error)
 	go func() {
-		defer wg.Done()
+		defer close(errCh)
 		conn, err := l.Accept()
 		if err != nil {
-			t.Errorf("Accept error: %v", err)
+			errCh <- fmt.Errorf("Accept: %v", err)
 			return
 		}
 		defer conn.Close()
@@ -656,13 +656,21 @@
 		tc := textproto.NewConn(conn)
 		tc.PrintfLine("220 hello world")
 		msg, err := tc.ReadLine()
-		if msg == "EHLO localhost" {
-			tc.PrintfLine("250 mx.google.com at your service")
+		if err != nil {
+			errCh <- fmt.Errorf("ReadLine error: %v", err)
+			return
 		}
-		// for this test case, there should have no more traffic
-		<-done
+		const wantMsg = "EHLO localhost"
+		if msg != wantMsg {
+			errCh <- fmt.Errorf("unexpected response %q; want %q", msg, wantMsg)
+			return
+		}
+		err = tc.PrintfLine("250 mx.google.com at your service")
+		if err != nil {
+			errCh <- fmt.Errorf("PrintfLine: %v", err)
+			return
+		}
 	}()
-	wg.Add(1)
 
 	err = SendMail(l.Addr().String(), PlainAuth("", "user", "pass", "smtp.google.com"), "test@example.com", []string{"other@example.com"}, []byte(strings.Replace(`From: test@example.com
 To: other@example.com
@@ -676,8 +684,10 @@
 	if err.Error() != "smtp: server doesn't support AUTH" {
 		t.Errorf("Expected: smtp: server doesn't support AUTH, got: %s", err)
 	}
-	close(done)
-	wg.Wait()
+	err = <-errCh
+	if err != nil {
+		t.Fatalf("server error: %v", err)
+	}
 }
 
 func TestAuthFailed(t *testing.T) {
diff --git a/libgo/go/net/sock_posix.go b/libgo/go/net/sock_posix.go
index 8076cf1..8fe9bc7 100644
--- a/libgo/go/net/sock_posix.go
+++ b/libgo/go/net/sock_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris windows
 
 package net
 
diff --git a/libgo/go/net/sock_stub.go b/libgo/go/net/sock_stub.go
index eca1f94..6d44f43 100644
--- a/libgo/go/net/sock_stub.go
+++ b/libgo/go/net/sock_stub.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix hurd nacl js,wasm solaris
+// +build aix hurd js,wasm solaris
 
 package net
 
diff --git a/libgo/go/net/sockaddr_posix.go b/libgo/go/net/sockaddr_posix.go
index 9f24650..470d044 100644
--- a/libgo/go/net/sockaddr_posix.go
+++ b/libgo/go/net/sockaddr_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package net
 
diff --git a/libgo/go/net/sockopt_stub.go b/libgo/go/net/sockopt_stub.go
index bc06675..52624a3 100644
--- a/libgo/go/net/sockopt_stub.go
+++ b/libgo/go/net/sockopt_stub.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl js,wasm
+// +build js,wasm
 
 package net
 
diff --git a/libgo/go/net/sockoptip_stub.go b/libgo/go/net/sockoptip_stub.go
index 3297969..57cd289 100644
--- a/libgo/go/net/sockoptip_stub.go
+++ b/libgo/go/net/sockoptip_stub.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl js,wasm
+// +build js,wasm
 
 package net
 
diff --git a/libgo/go/net/sys_cloexec.go b/libgo/go/net/sys_cloexec.go
index e97fb21..89aad70 100644
--- a/libgo/go/net/sys_cloexec.go
+++ b/libgo/go/net/sys_cloexec.go
@@ -5,7 +5,7 @@
 // This file implements sysSocket and accept for platforms that do not
 // provide a fast path for setting SetNonblock and CloseOnExec.
 
-// +build aix darwin nacl solaris
+// +build aix darwin solaris
 
 package net
 
diff --git a/libgo/go/net/tcpsock.go b/libgo/go/net/tcpsock.go
index 0daa2f6..9a9b03a 100644
--- a/libgo/go/net/tcpsock.go
+++ b/libgo/go/net/tcpsock.go
@@ -12,7 +12,7 @@
 	"time"
 )
 
-// BUG(mikio): On JS, NaCl and Windows, the File method of TCPConn and
+// BUG(mikio): On JS and Windows, the File method of TCPConn and
 // TCPListener is not implemented.
 
 // TCPAddr represents the address of a TCP end point.
@@ -337,3 +337,8 @@
 	}
 	return ln, nil
 }
+
+// roundDurationUp rounds d to the next multiple of to.
+func roundDurationUp(d time.Duration, to time.Duration) time.Duration {
+	return (d + to - 1) / to
+}
diff --git a/libgo/go/net/tcpsock_plan9.go b/libgo/go/net/tcpsock_plan9.go
index e2e8359..768d03b 100644
--- a/libgo/go/net/tcpsock_plan9.go
+++ b/libgo/go/net/tcpsock_plan9.go
@@ -23,7 +23,12 @@
 
 func (sd *sysDialer) doDialTCP(ctx context.Context, laddr, raddr *TCPAddr) (*TCPConn, error) {
 	switch sd.network {
-	case "tcp", "tcp4", "tcp6":
+	case "tcp4":
+		// Plan 9 doesn't complain about [::]:0->127.0.0.1, so it's up to us.
+		if laddr != nil && len(laddr.IP) != 0 && laddr.IP.To4() == nil {
+			return nil, &AddrError{Err: "non-IPv4 local address", Addr: laddr.String()}
+		}
+	case "tcp", "tcp6":
 	default:
 		return nil, UnknownNetworkError(sd.network)
 	}
diff --git a/libgo/go/net/tcpsock_posix.go b/libgo/go/net/tcpsock_posix.go
index 1ff0ec0..2c359da 100644
--- a/libgo/go/net/tcpsock_posix.go
+++ b/libgo/go/net/tcpsock_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package net
 
diff --git a/libgo/go/net/tcpsock_test.go b/libgo/go/net/tcpsock_test.go
index a89f621..920bf42 100644
--- a/libgo/go/net/tcpsock_test.go
+++ b/libgo/go/net/tcpsock_test.go
@@ -480,10 +480,6 @@
 		// I/O on Plan 9 allocates memory.
 		// See net/fd_io_plan9.go.
 		t.Skipf("not supported on %s", runtime.GOOS)
-	case "nacl":
-		// NaCl needs to allocate pseudo file descriptor
-		// stuff. See syscall/fd_nacl.go.
-		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
 	ln, err := Listen("tcp", "127.0.0.1:0")
diff --git a/libgo/go/net/tcpsockopt_darwin.go b/libgo/go/net/tcpsockopt_darwin.go
index da0d173..53c6756 100644
--- a/libgo/go/net/tcpsockopt_darwin.go
+++ b/libgo/go/net/tcpsockopt_darwin.go
@@ -15,8 +15,7 @@
 
 func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
 	// The kernel expects seconds so round to next highest second.
-	d += (time.Second - time.Nanosecond)
-	secs := int(d.Seconds())
+	secs := int(roundDurationUp(d, time.Second))
 	if err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, sysTCP_KEEPINTVL, secs); err != nil {
 		return wrapSyscallError("setsockopt", err)
 	}
diff --git a/libgo/go/net/tcpsockopt_dragonfly.go b/libgo/go/net/tcpsockopt_dragonfly.go
index 2b018f2..b473c02 100644
--- a/libgo/go/net/tcpsockopt_dragonfly.go
+++ b/libgo/go/net/tcpsockopt_dragonfly.go
@@ -13,8 +13,7 @@
 func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
 	// The kernel expects milliseconds so round to next highest
 	// millisecond.
-	d += (time.Millisecond - time.Nanosecond)
-	msecs := int(d / time.Millisecond)
+	msecs := int(roundDurationUp(d, time.Millisecond))
 	if err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, msecs); err != nil {
 		return wrapSyscallError("setsockopt", err)
 	}
diff --git a/libgo/go/net/tcpsockopt_solaris.go b/libgo/go/net/tcpsockopt_solaris.go
index aa86a29..f15e589 100644
--- a/libgo/go/net/tcpsockopt_solaris.go
+++ b/libgo/go/net/tcpsockopt_solaris.go
@@ -11,11 +11,22 @@
 )
 
 func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
-	// The kernel expects seconds so round to next highest second.
-	d += (time.Second - time.Nanosecond)
-	secs := int(d.Seconds())
+	// The kernel expects milliseconds so round to next highest
+	// millisecond.
+	msecs := int(roundDurationUp(d, time.Millisecond))
 
-	err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.SO_KEEPALIVE, secs)
+	// Normally we'd do
+	//	syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, secs)
+	// here, but we can't because Solaris does not have TCP_KEEPINTVL.
+	// Solaris has TCP_KEEPALIVE_ABORT_THRESHOLD, but it's not the same
+	// thing, it refers to the total time until aborting (not between
+	// probes), and it uses an exponential backoff algorithm instead of
+	// waiting the same time between probes. We can't hope for the best
+	// and do it anyway, like on Darwin, because Solaris might eventually
+	// allocate a constant with a different meaning for the value of
+	// TCP_KEEPINTVL on illumos.
+
+	err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPALIVE_THRESHOLD, msecs)
 	runtime.KeepAlive(fd)
 	return wrapSyscallError("setsockopt", err)
 }
diff --git a/libgo/go/net/tcpsockopt_stub.go b/libgo/go/net/tcpsockopt_stub.go
index fd7f579..d043da1 100644
--- a/libgo/go/net/tcpsockopt_stub.go
+++ b/libgo/go/net/tcpsockopt_stub.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl js,wasm
+// +build js,wasm
 
 package net
 
diff --git a/libgo/go/net/tcpsockopt_unix.go b/libgo/go/net/tcpsockopt_unix.go
index 13cab6c..e05cb73 100644
--- a/libgo/go/net/tcpsockopt_unix.go
+++ b/libgo/go/net/tcpsockopt_unix.go
@@ -14,8 +14,7 @@
 
 func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
 	// The kernel expects seconds so round to next highest second.
-	d += (time.Second - time.Nanosecond)
-	secs := int(d.Seconds())
+	secs := int(roundDurationUp(d, time.Second))
 	if err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, secs); err != nil {
 		return wrapSyscallError("setsockopt", err)
 	}
diff --git a/libgo/go/net/tcpsockopt_windows.go b/libgo/go/net/tcpsockopt_windows.go
index 73dead1..4a0b094 100644
--- a/libgo/go/net/tcpsockopt_windows.go
+++ b/libgo/go/net/tcpsockopt_windows.go
@@ -15,8 +15,7 @@
 func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
 	// The kernel expects milliseconds so round to next highest
 	// millisecond.
-	d += (time.Millisecond - time.Nanosecond)
-	msecs := uint32(d / time.Millisecond)
+	msecs := uint32(roundDurationUp(d, time.Millisecond))
 	ka := syscall.TCPKeepalive{
 		OnOff:    1,
 		Time:     msecs,
diff --git a/libgo/go/net/textproto/header.go b/libgo/go/net/textproto/header.go
index ed096d9..a58df7a 100644
--- a/libgo/go/net/textproto/header.go
+++ b/libgo/go/net/textproto/header.go
@@ -26,8 +26,7 @@
 // It is case insensitive; CanonicalMIMEHeaderKey is used
 // to canonicalize the provided key.
 // If there are no values associated with the key, Get returns "".
-// To access multiple values of a key, or to use non-canonical keys,
-// access the map directly.
+// To use non-canonical keys, access the map directly.
 func (h MIMEHeader) Get(key string) string {
 	if h == nil {
 		return ""
@@ -39,6 +38,18 @@
 	return v[0]
 }
 
+// Values returns all values associated with the given key.
+// It is case insensitive; CanonicalMIMEHeaderKey is
+// used to canonicalize the provided key. To use non-canonical
+// keys, access the map directly.
+// The returned slice is not a copy.
+func (h MIMEHeader) Values(key string) []string {
+	if h == nil {
+		return nil
+	}
+	return h[CanonicalMIMEHeaderKey(key)]
+}
+
 // Del deletes the values associated with key.
 func (h MIMEHeader) Del(key string) {
 	delete(h, CanonicalMIMEHeaderKey(key))
diff --git a/libgo/go/net/textproto/header_test.go b/libgo/go/net/textproto/header_test.go
new file mode 100644
index 0000000..de9405c
--- /dev/null
+++ b/libgo/go/net/textproto/header_test.go
@@ -0,0 +1,54 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package textproto
+
+import "testing"
+
+type canonicalHeaderKeyTest struct {
+	in, out string
+}
+
+var canonicalHeaderKeyTests = []canonicalHeaderKeyTest{
+	{"a-b-c", "A-B-C"},
+	{"a-1-c", "A-1-C"},
+	{"User-Agent", "User-Agent"},
+	{"uSER-aGENT", "User-Agent"},
+	{"user-agent", "User-Agent"},
+	{"USER-AGENT", "User-Agent"},
+
+	// Other valid tchar bytes in tokens:
+	{"foo-bar_baz", "Foo-Bar_baz"},
+	{"foo-bar$baz", "Foo-Bar$baz"},
+	{"foo-bar~baz", "Foo-Bar~baz"},
+	{"foo-bar*baz", "Foo-Bar*baz"},
+
+	// Non-ASCII or anything with spaces or non-token chars is unchanged:
+	{"üser-agenT", "üser-agenT"},
+	{"a B", "a B"},
+
+	// This caused a panic due to mishandling of a space:
+	{"C Ontent-Transfer-Encoding", "C Ontent-Transfer-Encoding"},
+	{"foo bar", "foo bar"},
+}
+
+func TestCanonicalMIMEHeaderKey(t *testing.T) {
+	for _, tt := range canonicalHeaderKeyTests {
+		if s := CanonicalMIMEHeaderKey(tt.in); s != tt.out {
+			t.Errorf("CanonicalMIMEHeaderKey(%q) = %q, want %q", tt.in, s, tt.out)
+		}
+	}
+}
+
+// Issue #34799 add a Header method to get multiple values []string, with canonicalized key
+func TestMIMEHeaderMultipleValues(t *testing.T) {
+	testHeader := MIMEHeader{
+		"Set-Cookie": {"cookie 1", "cookie 2"},
+	}
+	values := testHeader.Values("set-cookie")
+	n := len(values)
+	if n != 2 {
+		t.Errorf("count: %d; want 2", n)
+	}
+}
diff --git a/libgo/go/net/textproto/reader.go b/libgo/go/net/textproto/reader.go
index a5cab99..a505da9 100644
--- a/libgo/go/net/textproto/reader.go
+++ b/libgo/go/net/textproto/reader.go
@@ -7,6 +7,7 @@
 import (
 	"bufio"
 	"bytes"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"strconv"
@@ -90,7 +91,7 @@
 // A line consisting of only white space is never continued.
 //
 func (r *Reader) ReadContinuedLine() (string, error) {
-	line, err := r.readContinuedLineSlice()
+	line, err := r.readContinuedLineSlice(noValidation)
 	return string(line), err
 }
 
@@ -111,7 +112,7 @@
 // ReadContinuedLineBytes is like ReadContinuedLine but
 // returns a []byte instead of a string.
 func (r *Reader) ReadContinuedLineBytes() ([]byte, error) {
-	line, err := r.readContinuedLineSlice()
+	line, err := r.readContinuedLineSlice(noValidation)
 	if line != nil {
 		buf := make([]byte, len(line))
 		copy(buf, line)
@@ -120,7 +121,15 @@
 	return line, err
 }
 
-func (r *Reader) readContinuedLineSlice() ([]byte, error) {
+// readContinuedLineSlice reads continued lines from the reader buffer,
+// returning a byte slice with all lines. The validateFirstLine function
+// is run on the first read line, and if it returns an error then this
+// error is returned from readContinuedLineSlice.
+func (r *Reader) readContinuedLineSlice(validateFirstLine func([]byte) error) ([]byte, error) {
+	if validateFirstLine == nil {
+		return nil, fmt.Errorf("missing validateFirstLine func")
+	}
+
 	// Read the first line.
 	line, err := r.readLineSlice()
 	if err != nil {
@@ -130,6 +139,10 @@
 		return line, nil
 	}
 
+	if err := validateFirstLine(line); err != nil {
+		return nil, err
+	}
+
 	// Optimistically assume that we have started to buffer the next line
 	// and it starts with an ASCII letter (the next header key), or a blank
 	// line, so we can avoid copying that buffered data around in memory
@@ -490,23 +503,17 @@
 	}
 
 	for {
-		kv, err := r.readContinuedLineSlice()
+		kv, err := r.readContinuedLineSlice(mustHaveFieldNameColon)
 		if len(kv) == 0 {
 			return m, err
 		}
 
-		// Key ends at first colon; should not have trailing spaces
-		// but they appear in the wild, violating specs, so we remove
-		// them if present.
+		// Key ends at first colon.
 		i := bytes.IndexByte(kv, ':')
 		if i < 0 {
 			return m, ProtocolError("malformed MIME header line: " + string(kv))
 		}
-		endKey := i
-		for endKey > 0 && kv[endKey-1] == ' ' {
-			endKey--
-		}
-		key := canonicalMIMEHeaderKey(kv[:endKey])
+		key := canonicalMIMEHeaderKey(kv[:i])
 
 		// As per RFC 7230 field-name is a token, tokens consist of one or more chars.
 		// We could return a ProtocolError here, but better to be liberal in what we
@@ -541,6 +548,20 @@
 	}
 }
 
+// noValidation is a no-op validation func for readContinuedLineSlice
+// that permits any lines.
+func noValidation(_ []byte) error { return nil }
+
+// mustHaveFieldNameColon ensures that, per RFC 7230, the
+// field-name is on a single line, so the first line must
+// contain a colon.
+func mustHaveFieldNameColon(line []byte) error {
+	if bytes.IndexByte(line, ':') < 0 {
+		return ProtocolError(fmt.Sprintf("malformed MIME header: missing colon: %q" + string(line)))
+	}
+	return nil
+}
+
 // upcomingHeaderNewlines returns an approximation of the number of newlines
 // that will be in this header. If it gets confused, it returns 0.
 func (r *Reader) upcomingHeaderNewlines() (n int) {
diff --git a/libgo/go/net/textproto/reader_test.go b/libgo/go/net/textproto/reader_test.go
index e9ae04d..e0e9adb 100644
--- a/libgo/go/net/textproto/reader_test.go
+++ b/libgo/go/net/textproto/reader_test.go
@@ -13,41 +13,6 @@
 	"testing"
 )
 
-type canonicalHeaderKeyTest struct {
-	in, out string
-}
-
-var canonicalHeaderKeyTests = []canonicalHeaderKeyTest{
-	{"a-b-c", "A-B-C"},
-	{"a-1-c", "A-1-C"},
-	{"User-Agent", "User-Agent"},
-	{"uSER-aGENT", "User-Agent"},
-	{"user-agent", "User-Agent"},
-	{"USER-AGENT", "User-Agent"},
-
-	// Other valid tchar bytes in tokens:
-	{"foo-bar_baz", "Foo-Bar_baz"},
-	{"foo-bar$baz", "Foo-Bar$baz"},
-	{"foo-bar~baz", "Foo-Bar~baz"},
-	{"foo-bar*baz", "Foo-Bar*baz"},
-
-	// Non-ASCII or anything with spaces or non-token chars is unchanged:
-	{"üser-agenT", "üser-agenT"},
-	{"a B", "a B"},
-
-	// This caused a panic due to mishandling of a space:
-	{"C Ontent-Transfer-Encoding", "C Ontent-Transfer-Encoding"},
-	{"foo bar", "foo bar"},
-}
-
-func TestCanonicalMIMEHeaderKey(t *testing.T) {
-	for _, tt := range canonicalHeaderKeyTests {
-		if s := CanonicalMIMEHeaderKey(tt.in); s != tt.out {
-			t.Errorf("CanonicalMIMEHeaderKey(%q) = %q, want %q", tt.in, s, tt.out)
-		}
-	}
-}
-
 func reader(s string) *Reader {
 	return NewReader(bufio.NewReader(strings.NewReader(s)))
 }
@@ -188,11 +153,10 @@
 	}
 }
 
-// Test that we read slightly-bogus MIME headers seen in the wild,
-// with spaces before colons, and spaces in keys.
+// TestReadMIMEHeaderNonCompliant checks that we don't normalize headers
+// with spaces before colons, and accept spaces in keys.
 func TestReadMIMEHeaderNonCompliant(t *testing.T) {
-	// Invalid HTTP response header as sent by an Axis security
-	// camera: (this is handled by IE, Firefox, Chrome, curl, etc.)
+	// These invalid headers will be rejected by net/http according to RFC 7230.
 	r := reader("Foo: bar\r\n" +
 		"Content-Language: en\r\n" +
 		"SID : 0\r\n" +
@@ -202,9 +166,9 @@
 	want := MIMEHeader{
 		"Foo":              {"bar"},
 		"Content-Language": {"en"},
-		"Sid":              {"0"},
-		"Audio Mode":       {"None"},
-		"Privilege":        {"127"},
+		"SID ":             {"0"},
+		"Audio Mode ":      {"None"},
+		"Privilege ":       {"127"},
 	}
 	if !reflect.DeepEqual(m, want) || err != nil {
 		t.Fatalf("ReadMIMEHeader =\n%v, %v; want:\n%v", m, err, want)
@@ -219,6 +183,10 @@
 		" First: line with leading space\r\nFoo: foo\r\n\r\n",
 		"\tFirst: line with leading tab\r\nFoo: foo\r\n\r\n",
 		"Foo: foo\r\nNo colon second line\r\n\r\n",
+		"Foo-\n\tBar: foo\r\n\r\n",
+		"Foo-\r\n\tBar: foo\r\n\r\n",
+		"Foo\r\n\t: foo\r\n\r\n",
+		"Foo-\n\tBar",
 	}
 
 	for _, input := range inputs {
diff --git a/libgo/go/net/timeout_test.go b/libgo/go/net/timeout_test.go
index b4fc2c0..f54c956 100644
--- a/libgo/go/net/timeout_test.go
+++ b/libgo/go/net/timeout_test.go
@@ -411,9 +411,6 @@
 		if perr := parseReadError(err); perr != nil {
 			t.Error(perr)
 		}
-		if err == io.EOF && runtime.GOOS == "nacl" { // see golang.org/issue/8044
-			return
-		}
 		if nerr, ok := err.(Error); !ok || nerr.Timeout() || nerr.Temporary() {
 			t.Fatal(err)
 		}
@@ -432,11 +429,6 @@
 }
 
 func TestReadFromTimeout(t *testing.T) {
-	switch runtime.GOOS {
-	case "nacl":
-		t.Skipf("not supported on %s", runtime.GOOS) // see golang.org/issue/8916
-	}
-
 	ch := make(chan Addr)
 	defer close(ch)
 	handler := func(ls *localPacketServer, c PacketConn) {
@@ -621,11 +613,6 @@
 func TestWriteToTimeout(t *testing.T) {
 	t.Parallel()
 
-	switch runtime.GOOS {
-	case "nacl":
-		t.Skipf("not supported on %s", runtime.GOOS)
-	}
-
 	c1, err := newLocalPacketListener("udp")
 	if err != nil {
 		t.Fatal(err)
@@ -991,11 +978,6 @@
 func TestReadWriteDeadlineRace(t *testing.T) {
 	t.Parallel()
 
-	switch runtime.GOOS {
-	case "nacl":
-		t.Skipf("not supported on %s", runtime.GOOS)
-	}
-
 	N := 1000
 	if testing.Short() {
 		N = 50
@@ -1051,3 +1033,43 @@
 	}()
 	wg.Wait() // wait for tester goroutine to stop
 }
+
+// Issue 35367.
+func TestConcurrentSetDeadline(t *testing.T) {
+	ln, err := newLocalListener("tcp")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer ln.Close()
+
+	const goroutines = 8
+	const conns = 10
+	const tries = 100
+
+	var c [conns]Conn
+	for i := 0; i < conns; i++ {
+		c[i], err = Dial(ln.Addr().Network(), ln.Addr().String())
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer c[i].Close()
+	}
+
+	var wg sync.WaitGroup
+	wg.Add(goroutines)
+	now := time.Now()
+	for i := 0; i < goroutines; i++ {
+		go func(i int) {
+			defer wg.Done()
+			// Make the deadlines steadily earlier,
+			// to trigger runtime adjusttimers calls.
+			for j := tries; j > 0; j-- {
+				for k := 0; k < conns; k++ {
+					c[k].SetReadDeadline(now.Add(2*time.Hour + time.Duration(i*j*k)*time.Second))
+					c[k].SetWriteDeadline(now.Add(1*time.Hour + time.Duration(i*j*k)*time.Second))
+				}
+			}
+		}(i)
+	}
+	wg.Wait()
+}
diff --git a/libgo/go/net/udpsock.go b/libgo/go/net/udpsock.go
index b234ed8..ec2bcfa 100644
--- a/libgo/go/net/udpsock.go
+++ b/libgo/go/net/udpsock.go
@@ -9,15 +9,12 @@
 	"syscall"
 )
 
-// BUG(mikio): On NaCl and Plan 9, the ReadMsgUDP and
+// BUG(mikio): On Plan 9, the ReadMsgUDP and
 // WriteMsgUDP methods of UDPConn are not implemented.
 
 // BUG(mikio): On Windows, the File method of UDPConn is not
 // implemented.
 
-// BUG(mikio): On NaCl, the ListenMulticastUDP function is not
-// implemented.
-
 // BUG(mikio): On JS, methods and functions related to UDPConn are not
 // implemented.
 
diff --git a/libgo/go/net/udpsock_plan9.go b/libgo/go/net/udpsock_plan9.go
index 563d943..79986ce 100644
--- a/libgo/go/net/udpsock_plan9.go
+++ b/libgo/go/net/udpsock_plan9.go
@@ -109,7 +109,9 @@
 }
 
 func (sl *sysListener) listenMulticastUDP(ctx context.Context, ifi *Interface, gaddr *UDPAddr) (*UDPConn, error) {
-	l, err := listenPlan9(ctx, sl.network, gaddr)
+	// Plan 9 does not like announce command with a multicast address,
+	// so do not specify an IP address when listening.
+	l, err := listenPlan9(ctx, sl.network, &UDPAddr{IP: nil, Port: gaddr.Port, Zone: gaddr.Zone})
 	if err != nil {
 		return nil, err
 	}
@@ -129,11 +131,13 @@
 			return nil, err
 		}
 	}
+
+	have4 := gaddr.IP.To4() != nil
 	for _, addr := range addrs {
-		if ipnet, ok := addr.(*IPNet); ok {
+		if ipnet, ok := addr.(*IPNet); ok && (ipnet.IP.To4() != nil) == have4 {
 			_, err = l.ctl.WriteString("addmulti " + ipnet.IP.String() + " " + gaddr.IP.String())
 			if err != nil {
-				return nil, err
+				return nil, &OpError{Op: "addmulti", Net: "", Source: nil, Addr: ipnet, Err: err}
 			}
 		}
 	}
diff --git a/libgo/go/net/udpsock_plan9_test.go b/libgo/go/net/udpsock_plan9_test.go
index 09f5a5d..3febfcc 100644
--- a/libgo/go/net/udpsock_plan9_test.go
+++ b/libgo/go/net/udpsock_plan9_test.go
@@ -36,7 +36,7 @@
 
 	c1, err := ListenMulticastUDP("udp4", mifc, &UDPAddr{IP: ParseIP("224.0.0.254")})
 	if err != nil {
-		t.Fatalf("multicast not working on %s", runtime.GOOS)
+		t.Fatalf("multicast not working on %s: %v", runtime.GOOS, err)
 	}
 	c1addr := c1.LocalAddr().(*UDPAddr)
 	if err != nil {
diff --git a/libgo/go/net/udpsock_posix.go b/libgo/go/net/udpsock_posix.go
index 1d4cde1..858a3ef 100644
--- a/libgo/go/net/udpsock_posix.go
+++ b/libgo/go/net/udpsock_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package net
 
diff --git a/libgo/go/net/udpsock_test.go b/libgo/go/net/udpsock_test.go
index 397b664..947381a 100644
--- a/libgo/go/net/udpsock_test.go
+++ b/libgo/go/net/udpsock_test.go
@@ -162,13 +162,8 @@
 		t.Fatalf("should fail as ErrWriteToConnected: %v", err)
 	}
 	_, _, err = c.(*UDPConn).WriteMsgUDP(b, nil, nil)
-	switch runtime.GOOS {
-	case "nacl": // see golang.org/issue/9252
-		t.Skipf("not implemented yet on %s", runtime.GOOS)
-	default:
-		if err != nil {
-			t.Fatal(err)
-		}
+	if err != nil {
+		t.Fatal(err)
 	}
 }
 
@@ -205,13 +200,8 @@
 		t.Fatalf("should fail as errMissingAddress: %v", err)
 	}
 	_, _, err = c.(*UDPConn).WriteMsgUDP(b, nil, ra)
-	switch runtime.GOOS {
-	case "nacl": // see golang.org/issue/9252
-		t.Skipf("not implemented yet on %s", runtime.GOOS)
-	default:
-		if err != nil {
-			t.Fatal(err)
-		}
+	if err != nil {
+		t.Fatal(err)
 	}
 }
 
@@ -335,7 +325,7 @@
 
 func TestUDPZeroBytePayload(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	case "darwin":
 		testenv.SkipFlaky(t, 29225)
@@ -373,7 +363,7 @@
 
 func TestUDPZeroByteBuffer(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
@@ -410,7 +400,7 @@
 
 func TestUDPReadSizeError(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "plan9":
+	case "plan9":
 		t.Skipf("not supported on %s", runtime.GOOS)
 	}
 
diff --git a/libgo/go/net/unixsock.go b/libgo/go/net/unixsock.go
index ae912a4..b38438c 100644
--- a/libgo/go/net/unixsock.go
+++ b/libgo/go/net/unixsock.go
@@ -12,7 +12,7 @@
 	"time"
 )
 
-// BUG(mikio): On JS, NaCl and Plan 9, methods and functions related
+// BUG(mikio): On JS and Plan 9, methods and functions related
 // to UnixConn and UnixListener are not implemented.
 
 // BUG(mikio): On Windows, methods and functions related to UnixConn
diff --git a/libgo/go/net/unixsock_posix.go b/libgo/go/net/unixsock_posix.go
index 68887b4..3721485 100644
--- a/libgo/go/net/unixsock_posix.go
+++ b/libgo/go/net/unixsock_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package net
 
diff --git a/libgo/go/net/unixsock_test.go b/libgo/go/net/unixsock_test.go
index 4828990..80cccf2 100644
--- a/libgo/go/net/unixsock_test.go
+++ b/libgo/go/net/unixsock_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !js,!nacl,!plan9,!windows
+// +build !js,!plan9,!windows
 
 package net
 
diff --git a/libgo/go/net/url/url.go b/libgo/go/net/url/url.go
index 12ea35f..2880e82 100644
--- a/libgo/go/net/url/url.go
+++ b/libgo/go/net/url/url.go
@@ -26,7 +26,7 @@
 }
 
 func (e *Error) Unwrap() error { return e.Err }
-func (e *Error) Error() string { return e.Op + " " + e.URL + ": " + e.Err.Error() }
+func (e *Error) Error() string { return fmt.Sprintf("%s %q: %s", e.Op, e.URL, e.Err) }
 
 func (e *Error) Timeout() bool {
 	t, ok := e.Err.(interface {
@@ -42,6 +42,8 @@
 	return ok && t.Temporary()
 }
 
+const upperhex = "0123456789ABCDEF"
+
 func ishex(c byte) bool {
 	switch {
 	case '0' <= c && c <= '9':
@@ -324,8 +326,8 @@
 			j++
 		case shouldEscape(c, mode):
 			t[j] = '%'
-			t[j+1] = "0123456789ABCDEF"[c>>4]
-			t[j+2] = "0123456789ABCDEF"[c&15]
+			t[j+1] = upperhex[c>>4]
+			t[j+2] = upperhex[c&15]
 			j += 3
 		default:
 			t[j] = s[i]
@@ -449,16 +451,16 @@
 	return "", rawurl, nil
 }
 
-// Maybe s is of the form t c u.
-// If so, return t, c u (or t, u if cutc == true).
-// If not, return s, "".
-func split(s string, c string, cutc bool) (string, string) {
-	i := strings.Index(s, c)
+// split slices s into two substrings separated by the first occurrence of
+// sep. If cutc is true then sep is excluded from the second substring.
+// If sep does not occur in s then s and the empty string is returned.
+func split(s string, sep byte, cutc bool) (string, string) {
+	i := strings.IndexByte(s, sep)
 	if i < 0 {
 		return s, ""
 	}
 	if cutc {
-		return s[:i], s[i+len(c):]
+		return s[:i], s[i+1:]
 	}
 	return s[:i], s[i:]
 }
@@ -471,7 +473,7 @@
 // error, due to parsing ambiguities.
 func Parse(rawurl string) (*URL, error) {
 	// Cut off #frag
-	u, frag := split(rawurl, "#", true)
+	u, frag := split(rawurl, '#', true)
 	url, err := parse(u, false)
 	if err != nil {
 		return nil, &Error{"parse", u, err}
@@ -531,7 +533,7 @@
 		url.ForceQuery = true
 		rest = rest[:len(rest)-1]
 	} else {
-		rest, url.RawQuery = split(rest, "?", true)
+		rest, url.RawQuery = split(rest, '?', true)
 	}
 
 	if !strings.HasPrefix(rest, "/") {
@@ -560,7 +562,7 @@
 
 	if (url.Scheme != "" || !viaRequest && !strings.HasPrefix(rest, "///")) && strings.HasPrefix(rest, "//") {
 		var authority string
-		authority, rest = split(rest[2:], "/", false)
+		authority, rest = split(rest[2:], '/', false)
 		url.User, url.Host, err = parseAuthority(authority)
 		if err != nil {
 			return nil, err
@@ -599,7 +601,7 @@
 		}
 		user = User(userinfo)
 	} else {
-		username, password := split(userinfo, ":", true)
+		username, password := split(userinfo, ':', true)
 		if username, err = unescape(username, encodeUserPassword); err != nil {
 			return nil, "", err
 		}
@@ -948,8 +950,8 @@
 	if full == "" {
 		return ""
 	}
-	var dst []string
 	src := strings.Split(full, "/")
+	dst := make([]string, 0, len(src))
 	for _, elem := range src {
 		switch elem {
 		case ".":
diff --git a/libgo/go/net/url/url_test.go b/libgo/go/net/url/url_test.go
index e83c86c..79fd3d5 100644
--- a/libgo/go/net/url/url_test.go
+++ b/libgo/go/net/url/url_test.go
@@ -668,6 +668,7 @@
 
 	{"foo.html", false},
 	{"../dir/", false},
+	{" http://foo.com", false},
 	{"http://192.168.0.%31/", false},
 	{"http://192.168.0.%31:8080/", false},
 	{"http://[fe80::%31]/", false},
@@ -1429,16 +1430,21 @@
 		{"http://[::1]/", false},
 		{"http://[::1]a", true},
 		{"http://[::1]%23", true},
-		{"http://[::1%25en0]", false},     // valid zone id
-		{"http://[::1]:", false},          // colon, but no port OK
-		{"http://x:", false},              // colon, but no port OK
-		{"http://[::1]:%38%30", true},     // not allowed: % encoding only for non-ASCII
-		{"http://[::1%25%41]", false},     // RFC 6874 allows over-escaping in zone
-		{"http://[%10::1]", true},         // no %xx escapes in IP address
-		{"http://[::1]/%48", false},       // %xx in path is fine
-		{"http://%41:8080/", true},        // not allowed: % encoding only for non-ASCII
-		{"mysql://x@y(z:123)/foo", false}, // golang.org/issue/12023
-		{"mysql://x@y(1.2.3.4:123)/foo", false},
+		{"http://[::1%25en0]", false},    // valid zone id
+		{"http://[::1]:", false},         // colon, but no port OK
+		{"http://x:", false},             // colon, but no port OK
+		{"http://[::1]:%38%30", true},    // not allowed: % encoding only for non-ASCII
+		{"http://[::1%25%41]", false},    // RFC 6874 allows over-escaping in zone
+		{"http://[%10::1]", true},        // no %xx escapes in IP address
+		{"http://[::1]/%48", false},      // %xx in path is fine
+		{"http://%41:8080/", true},       // not allowed: % encoding only for non-ASCII
+		{"mysql://x@y(z:123)/foo", true}, // not well-formed per RFC 3986, golang.org/issue/33646
+		{"mysql://x@y(1.2.3.4:123)/foo", true},
+
+		{" http://foo.com", true},  // invalid character in schema
+		{"ht tp://foo.com", true},  // invalid character in schema
+		{"ahttp://foo.com", false}, // valid schema characters
+		{"1http://foo.com", true},  // invalid character in schema
 
 		{"http://[]%20%48%54%54%50%2f%31%2e%31%0a%4d%79%48%65%61%64%65%72%3a%20%31%32%33%0a%0a/", true}, // golang.org/issue/11208
 		{"http://a b.com/", true},    // no space in host name please
@@ -1456,7 +1462,7 @@
 			continue
 		}
 		if err != nil {
-			t.Logf("Parse(%q) = %v; want no error", tt.in, err)
+			t.Errorf("Parse(%q) = %v; want no error", tt.in, err)
 		}
 	}
 }
@@ -1874,3 +1880,12 @@
 		})
 	}
 }
+
+var sink string
+
+func BenchmarkSplit(b *testing.B) {
+	url := "http://www.google.com/?q=go+language#foo%26bar"
+	for i := 0; i < b.N; i++ {
+		sink, sink = split(url, '#', true)
+	}
+}
diff --git a/libgo/go/os/dir_gccgo.go b/libgo/go/os/dir_gccgo.go
index ad77a40..171dde5 100644
--- a/libgo/go/os/dir_gccgo.go
+++ b/libgo/go/os/dir_gccgo.go
@@ -14,7 +14,10 @@
 
 // FIXME: pathconf returns long, not int.
 //extern pathconf
-func libc_pathconf(*byte, int) int
+func libc_pathconf(*byte, int32) int
+
+//extern dup
+func libc_dup(int32) int32
 
 func clen(n []byte) int {
 	for i := 0; i < len(n); i++ {
@@ -48,9 +51,17 @@
 		}
 
 		syscall.Entersyscall()
-		r := libc_fdopendir(int32(file.pfd.Sysfd))
+		fd := libc_dup(int32(file.pfd.Sysfd))
 		errno := syscall.GetErrno()
 		syscall.Exitsyscall()
+		if fd < 0 {
+			return nil, &PathError{"dup", file.name, errno}
+		}
+
+		syscall.Entersyscall()
+		r := libc_fdopendir(fd)
+		errno = syscall.GetErrno()
+		syscall.Exitsyscall()
 		if r == nil {
 			return nil, &PathError{"fdopendir", file.name, errno}
 		}
@@ -100,3 +111,12 @@
 	}
 	return names, nil
 }
+
+func (f *File) seekInvalidate() {
+	if f.file.dirinfo != nil {
+		syscall.Entersyscall()
+		libc_closedir(f.file.dirinfo.dir)
+		syscall.Exitsyscall()
+		f.file.dirinfo = nil
+	}
+}
diff --git a/libgo/go/os/env_windows.go b/libgo/go/os/env_windows.go
index e8f647e..b1b1ee4 100644
--- a/libgo/go/os/env_windows.go
+++ b/libgo/go/os/env_windows.go
@@ -23,16 +23,20 @@
 	defer windows.DestroyEnvironmentBlock(block)
 	blockp := uintptr(unsafe.Pointer(block))
 	for {
-		entry := (*[(1 << 30) - 1]uint16)(unsafe.Pointer(blockp))[:]
-		for i, v := range entry {
-			if v == 0 {
-				entry = entry[:i]
-				break
-			}
+
+		// find NUL terminator
+		end := unsafe.Pointer(blockp)
+		for *(*uint16)(end) != 0 {
+			end = unsafe.Pointer(uintptr(end) + 2)
 		}
-		if len(entry) == 0 {
+
+		n := (uintptr(end) - uintptr(unsafe.Pointer(blockp))) / 2
+		if n == 0 {
+			// environment block ends with empty string
 			break
 		}
+
+		entry := (*[(1 << 30) - 1]uint16)(unsafe.Pointer(blockp))[:n:n]
 		env = append(env, string(utf16.Decode(entry)))
 		blockp += 2 * (uintptr(len(entry)) + 1)
 	}
diff --git a/libgo/go/os/error.go b/libgo/go/os/error.go
index 0e8e2d4..26bfe4c 100644
--- a/libgo/go/os/error.go
+++ b/libgo/go/os/error.go
@@ -110,7 +110,7 @@
 func underlyingErrorIs(err, target error) bool {
 	// Note that this function is not errors.Is:
 	// underlyingError only unwraps the specific error-wrapping types
-	// that it historically did, not all errors.Wrapper implementations.
+	// that it historically did, not all errors implementing Unwrap().
 	err = underlyingError(err)
 	if err == target {
 		return true
diff --git a/libgo/go/os/error_posix.go b/libgo/go/os/error_posix.go
index 401e6f7..7d5a19c 100644
--- a/libgo/go/os/error_posix.go
+++ b/libgo/go/os/error_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package os
 
diff --git a/libgo/go/os/error_unix_test.go b/libgo/go/os/error_unix_test.go
index faf18ee..a01916e 100644
--- a/libgo/go/os/error_unix_test.go
+++ b/libgo/go/os/error_unix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package os_test
 
diff --git a/libgo/go/os/exec/exec.go b/libgo/go/os/exec/exec.go
index 17ef003..3474ae0 100644
--- a/libgo/go/os/exec/exec.go
+++ b/libgo/go/os/exec/exec.go
@@ -238,7 +238,6 @@
 
 // skipStdinCopyError optionally specifies a function which reports
 // whether the provided stdin copy error should be ignored.
-// It is non-nil everywhere but Plan 9, which lacks EPIPE. See exec_posix.go.
 var skipStdinCopyError func(error) bool
 
 func (c *Cmd) stdin() (f *os.File, err error) {
@@ -369,6 +368,8 @@
 
 // Start starts the specified command but does not wait for it to complete.
 //
+// If Start returns successfully, the c.Process field will be set.
+//
 // The Wait method will return the exit code and release associated resources
 // once the command exits.
 func (c *Cmd) Start() error {
@@ -606,8 +607,8 @@
 // standard output when the command starts.
 //
 // Wait will close the pipe after seeing the command exit, so most callers
-// need not close the pipe themselves; however, an implication is that
-// it is incorrect to call Wait before all reads from the pipe have completed.
+// need not close the pipe themselves. It is thus incorrect to call Wait
+// before all reads from the pipe have completed.
 // For the same reason, it is incorrect to call Run when using StdoutPipe.
 // See the example for idiomatic usage.
 func (c *Cmd) StdoutPipe() (io.ReadCloser, error) {
@@ -631,8 +632,8 @@
 // standard error when the command starts.
 //
 // Wait will close the pipe after seeing the command exit, so most callers
-// need not close the pipe themselves; however, an implication is that
-// it is incorrect to call Wait before all reads from the pipe have completed.
+// need not close the pipe themselves. It is thus incorrect to call Wait
+// before all reads from the pipe have completed.
 // For the same reason, it is incorrect to use Run when using StderrPipe.
 // See the StdoutPipe example for idiomatic usage.
 func (c *Cmd) StderrPipe() (io.ReadCloser, error) {
diff --git a/libgo/go/os/exec/exec_plan9.go b/libgo/go/os/exec/exec_plan9.go
new file mode 100644
index 0000000..d90bd04
--- /dev/null
+++ b/libgo/go/os/exec/exec_plan9.go
@@ -0,0 +1,19 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package exec
+
+import "os"
+
+func init() {
+	skipStdinCopyError = func(err error) bool {
+		// Ignore hungup errors copying to stdin if the program
+		// completed successfully otherwise.
+		// See Issue 35753.
+		pe, ok := err.(*os.PathError)
+		return ok &&
+			pe.Op == "write" && pe.Path == "|1" &&
+			pe.Err.Error() == "i/o on hungup channel"
+	}
+}
diff --git a/libgo/go/os/exec/exec_test.go b/libgo/go/os/exec/exec_test.go
index cfbb87a..dce66c5 100644
--- a/libgo/go/os/exec/exec_test.go
+++ b/libgo/go/os/exec/exec_test.go
@@ -30,6 +30,45 @@
 	"time"
 )
 
+// haveUnexpectedFDs is set at init time to report whether any
+// file descriptors were open at program start.
+var haveUnexpectedFDs bool
+
+// unfinalizedFiles holds files that should not be finalized,
+// because that would close the associated file descriptor,
+// which we don't want to do.
+var unfinalizedFiles []*os.File
+
+func init() {
+	if os.Getenv("GO_WANT_HELPER_PROCESS") == "1" {
+		return
+	}
+	if runtime.GOOS == "windows" {
+		return
+	}
+	for fd := uintptr(3); fd <= 100; fd++ {
+		if poll.IsPollDescriptor(fd) {
+			continue
+		}
+		// We have no good portable way to check whether an FD is open.
+		// We use NewFile to create a *os.File, which lets us
+		// know whether it is open, but then we have to cope with
+		// the finalizer on the *os.File.
+		f := os.NewFile(fd, "")
+		if _, err := f.Stat(); err != nil {
+			// Close the file to clear the finalizer.
+			// We expect the Close to fail.
+			f.Close()
+		} else {
+			fmt.Printf("fd %d open at test start\n", fd)
+			haveUnexpectedFDs = true
+			// Use a global variable to avoid running
+			// the finalizer, which would close the FD.
+			unfinalizedFiles = append(unfinalizedFiles, f)
+		}
+	}
+}
+
 func helperCommandContext(t *testing.T, ctx context.Context, s ...string) (cmd *exec.Cmd) {
 	testenv.MustHaveExec(t)
 
@@ -40,11 +79,7 @@
 	} else {
 		cmd = exec.Command(os.Args[0], cs...)
 	}
-	cmd.Env = []string{"GO_WANT_HELPER_PROCESS=1"}
-	path := os.Getenv("LD_LIBRARY_PATH")
-	if path != "" {
-		cmd.Env = append(cmd.Env, "LD_LIBRARY_PATH="+path)
-	}
+	cmd.Env = append(os.Environ(), "GO_WANT_HELPER_PROCESS=1")
 	return cmd
 }
 
@@ -453,17 +488,15 @@
 	return bytes.Count(lsof, []byte("\n")), lsof
 }
 
-var testedAlreadyLeaked = false
-
 // basefds returns the number of expected file descriptors
 // to be present in a process at start.
-// stdin, stdout, stderr, epoll/kqueue, maybe testlog
+// stdin, stdout, stderr, epoll/kqueue, epoll/kqueue pipe, maybe testlog
 func basefds() uintptr {
 	n := os.Stderr.Fd() + 1
 	// The poll (epoll/kqueue) descriptor can be numerically
 	// either between stderr and the testlog-fd, or after
 	// testlog-fd.
-	if poll.IsPollDescriptor(n) {
+	for poll.IsPollDescriptor(n) {
 		n++
 	}
 	for _, arg := range os.Args {
@@ -474,29 +507,9 @@
 	return n
 }
 
-func closeUnexpectedFds(t *testing.T, m string) {
-	for fd := basefds(); fd <= 101; fd++ {
-		if poll.IsPollDescriptor(fd) {
-			continue
-		}
-		err := os.NewFile(fd, "").Close()
-		if err == nil {
-			t.Logf("%s: Something already leaked - closed fd %d", m, fd)
-		}
-	}
-}
-
 func TestExtraFilesFDShuffle(t *testing.T) {
 	t.Skip("flaky test; see https://golang.org/issue/5780")
 	switch runtime.GOOS {
-	case "darwin":
-		// TODO(cnicolaou): https://golang.org/issue/2603
-		// leads to leaked file descriptors in this test when it's
-		// run from a builder.
-		closeUnexpectedFds(t, "TestExtraFilesFDShuffle")
-	case "netbsd":
-		// https://golang.org/issue/3955
-		closeUnexpectedFds(t, "TestExtraFilesFDShuffle")
 	case "windows":
 		t.Skip("no operating system support; skipping")
 	}
@@ -591,19 +604,29 @@
 }
 
 func TestExtraFiles(t *testing.T) {
+	if haveUnexpectedFDs {
+		// The point of this test is to make sure that any
+		// descriptors we open are marked close-on-exec.
+		// If haveUnexpectedFDs is true then there were other
+		// descriptors open when we started the test,
+		// so those descriptors are clearly not close-on-exec,
+		// and they will confuse the test. We could modify
+		// the test to expect those descriptors to remain open,
+		// but since we don't know where they came from or what
+		// they are doing, that seems fragile. For example,
+		// perhaps they are from the startup code on this
+		// system for some reason. Also, this test is not
+		// system-specific; as long as most systems do not skip
+		// the test, we will still be testing what we care about.
+		t.Skip("skipping test because test was run with FDs open")
+	}
+
 	testenv.MustHaveExec(t)
 
 	if runtime.GOOS == "windows" {
 		t.Skipf("skipping test on %q", runtime.GOOS)
 	}
 
-	// Ensure that file descriptors have not already been leaked into
-	// our environment.
-	if !testedAlreadyLeaked {
-		testedAlreadyLeaked = true
-		closeUnexpectedFds(t, "TestExtraFiles")
-	}
-
 	// Force network usage, to verify the epoll (or whatever) fd
 	// doesn't leak to the child,
 	ln, err := net.Listen("tcp", "127.0.0.1:0")
@@ -660,7 +683,7 @@
 	c.ExtraFiles = []*os.File{tf}
 	err = c.Run()
 	if err != nil {
-		t.Fatalf("Run: %v; stdout %q, stderr %q", err, stdout.Bytes(), stderr.Bytes())
+		t.Fatalf("Run: %v\n--- stdout:\n%s--- stderr:\n%s", err, stdout.Bytes(), stderr.Bytes())
 	}
 	if stdout.String() != text {
 		t.Errorf("got stdout %q, stderr %q; want %q on stdout", stdout.String(), stderr.String(), text)
@@ -825,55 +848,40 @@
 			fmt.Printf("ReadAll from fd 3: %v", err)
 			os.Exit(1)
 		}
-		switch runtime.GOOS {
-		case "dragonfly":
-			// TODO(jsing): Determine why DragonFly is leaking
-			// file descriptors...
-		case "darwin":
-			// TODO(bradfitz): broken? Sometimes.
-			// https://golang.org/issue/2603
-			// Skip this additional part of the test for now.
-		case "netbsd":
-			// TODO(jsing): This currently fails on NetBSD due to
-			// the cloned file descriptors that result from opening
-			// /dev/urandom.
-			// https://golang.org/issue/3955
-		case "illumos", "solaris":
-			// TODO(aram): This fails on Solaris because libc opens
-			// its own files, as it sees fit. Darwin does the same,
-			// see: https://golang.org/issue/2603
-		default:
-			// Now verify that there are no other open fds.
-			var files []*os.File
-			for wantfd := basefds() + 1; wantfd <= 100; wantfd++ {
-				if poll.IsPollDescriptor(wantfd) {
-					continue
+		// Now verify that there are no other open fds.
+		var files []*os.File
+		for wantfd := basefds() + 1; wantfd <= 100; wantfd++ {
+			if poll.IsPollDescriptor(wantfd) {
+				continue
+			}
+			f, err := os.Open(os.Args[0])
+			if err != nil {
+				fmt.Printf("error opening file with expected fd %d: %v", wantfd, err)
+				os.Exit(1)
+			}
+			if got := f.Fd(); got != wantfd {
+				fmt.Printf("leaked parent file. fd = %d; want %d\n", got, wantfd)
+				var args []string
+				switch runtime.GOOS {
+				case "plan9":
+					args = []string{fmt.Sprintf("/proc/%d/fd", os.Getpid())}
+				case "aix":
+					args = []string{fmt.Sprint(os.Getpid())}
+				default:
+					args = []string{"-p", fmt.Sprint(os.Getpid())}
 				}
-				f, err := os.Open(os.Args[0])
+				cmd := exec.Command(ofcmd, args...)
+				out, err := cmd.CombinedOutput()
 				if err != nil {
-					fmt.Printf("error opening file with expected fd %d: %v", wantfd, err)
-					os.Exit(1)
+					fmt.Fprintf(os.Stderr, "%s failed: %v\n", strings.Join(cmd.Args, " "), err)
 				}
-				if got := f.Fd(); got != wantfd {
-					fmt.Printf("leaked parent file. fd = %d; want %d\n", got, wantfd)
-					var args []string
-					switch runtime.GOOS {
-					case "plan9":
-						args = []string{fmt.Sprintf("/proc/%d/fd", os.Getpid())}
-					case "aix":
-						args = []string{fmt.Sprint(os.Getpid())}
-					default:
-						args = []string{"-p", fmt.Sprint(os.Getpid())}
-					}
-					out, _ := exec.Command(ofcmd, args...).CombinedOutput()
-					fmt.Print(string(out))
-					os.Exit(1)
-				}
-				files = append(files, f)
+				fmt.Printf("%s", out)
+				os.Exit(1)
 			}
-			for _, f := range files {
-				f.Close()
-			}
+			files = append(files, f)
+		}
+		for _, f := range files {
+			f.Close()
 		}
 		// Referring to fd3 here ensures that it is not
 		// garbage collected, and therefore closed, while
@@ -966,11 +974,6 @@
 func TestIgnorePipeErrorOnSuccess(t *testing.T) {
 	testenv.MustHaveExec(t)
 
-	// We really only care about testing this on Unixy and Windowsy things.
-	if runtime.GOOS == "plan9" {
-		t.Skipf("skipping test on %q", runtime.GOOS)
-	}
-
 	testWith := func(r io.Reader) func(*testing.T) {
 		return func(t *testing.T) {
 			cmd := helperCommand(t, "echo", "foo")
diff --git a/libgo/go/os/exec/lp_unix.go b/libgo/go/os/exec/lp_unix.go
index d3f174f..6a5e877 100644
--- a/libgo/go/os/exec/lp_unix.go
+++ b/libgo/go/os/exec/lp_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris
 
 package exec
 
diff --git a/libgo/go/os/exec_posix.go b/libgo/go/os/exec_posix.go
index bb47e83..a944e4e 100644
--- a/libgo/go/os/exec_posix.go
+++ b/libgo/go/os/exec_posix.go
@@ -2,11 +2,12 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package os
 
 import (
+	"runtime"
 	"syscall"
 )
 
@@ -49,9 +50,14 @@
 	}
 
 	pid, h, e := syscall.StartProcess(name, argv, sysattr)
+
+	// Make sure we don't run the finalizers of attr.Files.
+	runtime.KeepAlive(attr)
+
 	if e != nil {
 		return nil, &PathError{"fork/exec", name, e}
 	}
+
 	return newProcess(pid, h), nil
 }
 
diff --git a/libgo/go/os/exec_unix.go b/libgo/go/os/exec_unix.go
index 1cb8ebc..238d755 100644
--- a/libgo/go/os/exec_unix.go
+++ b/libgo/go/os/exec_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package os
 
diff --git a/libgo/go/os/exec_windows.go b/libgo/go/os/exec_windows.go
index 38293a0..10503c5 100644
--- a/libgo/go/os/exec_windows.go
+++ b/libgo/go/os/exec_windows.go
@@ -6,11 +6,11 @@
 
 import (
 	"errors"
+	"internal/syscall/windows"
 	"runtime"
 	"sync/atomic"
 	"syscall"
 	"time"
-	"unsafe"
 )
 
 func (p *Process) wait() (ps *ProcessState, err error) {
@@ -98,8 +98,7 @@
 }
 
 func init() {
-	p := syscall.GetCommandLine()
-	cmd := syscall.UTF16ToString((*[0xffff]uint16)(unsafe.Pointer(p))[:])
+	cmd := windows.UTF16PtrToString(syscall.GetCommandLine(), 0xffff)
 	if len(cmd) == 0 {
 		arg0, _ := Executable()
 		Args = []string{arg0}
diff --git a/libgo/go/os/executable.go b/libgo/go/os/executable.go
index 17eed10..cc3134a 100644
--- a/libgo/go/os/executable.go
+++ b/libgo/go/os/executable.go
@@ -15,8 +15,6 @@
 //
 // The main use case is finding resources located relative to an
 // executable.
-//
-// Executable is not supported on nacl.
 func Executable() (string, error) {
 	return executable()
 }
diff --git a/libgo/go/os/executable_procfs.go b/libgo/go/os/executable_procfs.go
index e690103..d2d2e5a 100644
--- a/libgo/go/os/executable_procfs.go
+++ b/libgo/go/os/executable_procfs.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build hurd linux netbsd dragonfly nacl js,wasm
+// +build hurd linux netbsd dragonfly js,wasm
 
 package os
 
diff --git a/libgo/go/os/executable_test.go b/libgo/go/os/executable_test.go
index d513c87..f25ee0c 100644
--- a/libgo/go/os/executable_test.go
+++ b/libgo/go/os/executable_test.go
@@ -17,7 +17,7 @@
 const executable_EnvVar = "OSTEST_OUTPUT_EXECPATH"
 
 func TestExecutable(t *testing.T) {
-	testenv.MustHaveExec(t) // will also exclude nacl, which doesn't support Executable anyway
+	testenv.MustHaveExec(t)
 	ep, err := os.Executable()
 	if err != nil {
 		t.Fatalf("Executable failed: %v", err)
diff --git a/libgo/go/os/export_test.go b/libgo/go/os/export_test.go
index d17d5e6..812432c 100644
--- a/libgo/go/os/export_test.go
+++ b/libgo/go/os/export_test.go
@@ -9,4 +9,3 @@
 var Atime = atime
 var LstatP = &lstat
 var ErrWriteAtInAppendMode = errWriteAtInAppendMode
-var RemoveAllTestHook = &removeAllTestHook
diff --git a/libgo/go/os/export_unix_test.go b/libgo/go/os/export_unix_test.go
index 3a15aad..f4d399d 100644
--- a/libgo/go/os/export_unix_test.go
+++ b/libgo/go/os/export_unix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package os
 
diff --git a/libgo/go/os/file.go b/libgo/go/os/file.go
index c13babe..7995de7 100644
--- a/libgo/go/os/file.go
+++ b/libgo/go/os/file.go
@@ -228,6 +228,9 @@
 // bits (before umask).
 // If there is an error, it will be of type *PathError.
 func Mkdir(name string, perm FileMode) error {
+	if runtime.GOOS == "windows" && isWindowsNulName(name) {
+		return &PathError{"mkdir", name, syscall.ENOTDIR}
+	}
 	e := syscall.Mkdir(fixLongPath(name), syscallMode(perm))
 
 	if e != nil {
@@ -247,7 +250,7 @@
 	return nil
 }
 
-// setStickyBit adds ModeSticky to the permision bits of path, non atomic.
+// setStickyBit adds ModeSticky to the permission bits of path, non atomic.
 func setStickyBit(name string) error {
 	fi, err := Stat(name)
 	if err != nil {
@@ -408,7 +411,7 @@
 // subdirectory within this one and use that.
 //
 // On Unix systems, it returns $XDG_CONFIG_HOME as specified by
-// https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html if
+// https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html if
 // non-empty, else $HOME/.config.
 // On Darwin, it returns $HOME/Library/Application Support.
 // On Windows, it returns %AppData%.
@@ -472,8 +475,6 @@
 	}
 	// On some geese the home directory is not always defined.
 	switch runtime.GOOS {
-	case "nacl":
-		return "/", nil
 	case "android":
 		return "/sdcard", nil
 	case "darwin":
@@ -560,3 +561,21 @@
 	}
 	return newRawConn(f)
 }
+
+// isWindowsNulName reports whether name is os.DevNull ('NUL') on Windows.
+// True is returned if name is 'NUL' whatever the case.
+func isWindowsNulName(name string) bool {
+	if len(name) != 3 {
+		return false
+	}
+	if name[0] != 'n' && name[0] != 'N' {
+		return false
+	}
+	if name[1] != 'u' && name[1] != 'U' {
+		return false
+	}
+	if name[2] != 'l' && name[2] != 'L' {
+		return false
+	}
+	return true
+}
diff --git a/libgo/go/os/file_plan9.go b/libgo/go/os/file_plan9.go
index e0a3826..48bf5f5 100644
--- a/libgo/go/os/file_plan9.go
+++ b/libgo/go/os/file_plan9.go
@@ -111,7 +111,7 @@
 		fd, e = syscall.Create(name, flag, syscallMode(perm))
 	} else {
 		fd, e = syscall.Open(name, flag)
-		if e != nil && create {
+		if IsNotExist(e) && create {
 			var e1 error
 			fd, e1 = syscall.Create(name, flag, syscallMode(perm))
 			if e1 == nil {
diff --git a/libgo/go/os/file_posix.go b/libgo/go/os/file_posix.go
index 2220a44..f59d137 100644
--- a/libgo/go/os/file_posix.go
+++ b/libgo/go/os/file_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package os
 
diff --git a/libgo/go/os/file_unix.go b/libgo/go/os/file_unix.go
index 750771f..2fc6318 100644
--- a/libgo/go/os/file_unix.go
+++ b/libgo/go/os/file_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package os
 
@@ -27,13 +27,17 @@
 		// At this point we've determined the newname is bad.
 		// But just in case oldname is also bad, prioritize returning
 		// the oldname error because that's what we did historically.
-		if _, err := Lstat(oldname); err != nil {
+		// However, if the old name and new name are not the same, yet
+		// they refer to the same file, it implies a case-only
+		// rename on a case-insensitive filesystem, which is ok.
+		if ofi, err := Lstat(oldname); err != nil {
 			if pe, ok := err.(*PathError); ok {
 				err = pe.Err
 			}
 			return &LinkError{"rename", oldname, newname, err}
+		} else if newname == oldname || !SameFile(fi, ofi) {
+			return &LinkError{"rename", oldname, newname, syscall.EEXIST}
 		}
-		return &LinkError{"rename", oldname, newname, syscall.EEXIST}
 	}
 	err = syscall.Rename(oldname, newname)
 	if err != nil {
@@ -253,13 +257,12 @@
 		if i < 0 && errno != 0 {
 			err = &PathError{"closedir", file.name, errno}
 		}
-	} else {
-		if e := file.pfd.Close(); e != nil {
-			if e == poll.ErrFileClosing {
-				e = ErrClosed
-			}
-			err = &PathError{"close", file.name, e}
+	}
+	if e := file.pfd.Close(); e != nil {
+		if e == poll.ErrFileClosing {
+			e = ErrClosed
 		}
+		err = &PathError{"close", file.name, e}
 	}
 
 	// no need for a finalizer anymore
@@ -305,6 +308,7 @@
 // relative to the current offset, and 2 means relative to the end.
 // It returns the new offset and an error, if any.
 func (f *File) seek(offset int64, whence int) (ret int64, err error) {
+	f.seekInvalidate()
 	ret, err = f.pfd.Seek(offset, whence)
 	runtime.KeepAlive(f)
 	return ret, err
diff --git a/libgo/go/os/os_test.go b/libgo/go/os/os_test.go
index c27432f..a19b46d 100644
--- a/libgo/go/os/os_test.go
+++ b/libgo/go/os/os_test.go
@@ -971,6 +971,67 @@
 	}
 }
 
+func TestRenameCaseDifference(pt *testing.T) {
+	from, to := "renameFROM", "RENAMEfrom"
+	tests := []struct {
+		name   string
+		create func() error
+	}{
+		{"dir", func() error {
+			return Mkdir(from, 0777)
+		}},
+		{"file", func() error {
+			fd, err := Create(from)
+			if err != nil {
+				return err
+			}
+			return fd.Close()
+		}},
+	}
+
+	for _, test := range tests {
+		pt.Run(test.name, func(t *testing.T) {
+			defer chtmpdir(t)()
+
+			if err := test.create(); err != nil {
+				t.Fatalf("failed to create test file: %s", err)
+			}
+
+			if _, err := Stat(to); err != nil {
+				// Sanity check that the underlying filesystem is not case sensitive.
+				if IsNotExist(err) {
+					t.Skipf("case sensitive filesystem")
+				}
+				t.Fatalf("stat %q, got: %q", to, err)
+			}
+
+			if err := Rename(from, to); err != nil {
+				t.Fatalf("unexpected error when renaming from %q to %q: %s", from, to, err)
+			}
+
+			fd, err := Open(".")
+			if err != nil {
+				t.Fatalf("Open .: %s", err)
+			}
+
+			// Stat does not return the real case of the file (it returns what the called asked for)
+			// So we have to use readdir to get the real name of the file.
+			dirNames, err := fd.Readdirnames(-1)
+			if err != nil {
+				t.Fatalf("readdirnames: %s", err)
+			}
+
+			if dirNamesLen := len(dirNames); dirNamesLen != 1 {
+				t.Fatalf("unexpected dirNames len, got %q, want %q", dirNamesLen, 1)
+			}
+
+			if dirNames[0] != to {
+				t.Errorf("unexpected name, got %q, want %q", dirNames[0], to)
+			}
+		})
+	}
+}
+
 func exec(t *testing.T, dir, cmd string, args []string, expect string) {
 	r, w, err := Pipe()
 	if err != nil {
@@ -1157,9 +1218,7 @@
 	pmt := postStat.ModTime()
 	if !pat.Before(at) {
 		switch runtime.GOOS {
-		case "plan9", "nacl":
-			// Ignore.
-			// Plan 9, NaCl:
+		case "plan9":
 			// Mtime is the time of the last change of
 			// content.  Similarly, atime is set whenever
 			// the contents are accessed; also, it is set
@@ -1349,10 +1408,6 @@
 		{0, io.SeekCurrent, 2<<32 - 1},
 	}
 	for i, tt := range tests {
-		if runtime.GOOS == "nacl" && tt.out > 1<<30 {
-			t.Logf("skipping test case #%d on nacl; https://golang.org/issue/21728", i)
-			continue
-		}
 		if runtime.GOOS == "hurd" && tt.out > 1<<32 {
 			t.Logf("skipping test case #%d on Hurd: file too large", i)
 			continue
@@ -1373,7 +1428,7 @@
 
 func TestSeekError(t *testing.T) {
 	switch runtime.GOOS {
-	case "js", "nacl", "plan9":
+	case "js", "plan9":
 		t.Skipf("skipping test on %v", runtime.GOOS)
 	}
 
@@ -2253,8 +2308,6 @@
 		t.Skip("skipping on Plan 9; does not support runtime poller")
 	case "js":
 		t.Skip("skipping on js; no support for os.Pipe")
-	case "darwin":
-		t.Skip("skipping on Darwin; issue 33953")
 	}
 
 	threads := 100
@@ -2355,3 +2408,45 @@
 		t.Fatalf("dir %s is not directory; type = %v", dir, fi.Mode())
 	}
 }
+
+func TestDirSeek(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		testenv.SkipFlaky(t, 36019)
+	}
+	wd, err := Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+	f, err := Open(wd)
+	if err != nil {
+		t.Fatal(err)
+	}
+	dirnames1, err := f.Readdirnames(0)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ret, err := f.Seek(0, 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if ret != 0 {
+		t.Fatalf("seek result not zero: %d", ret)
+	}
+
+	dirnames2, err := f.Readdirnames(0)
+	if err != nil {
+		t.Fatal(err)
+		return
+	}
+
+	if len(dirnames1) != len(dirnames2) {
+		t.Fatalf("listings have different lengths: %d and %d\n", len(dirnames1), len(dirnames2))
+	}
+	for i, n1 := range dirnames1 {
+		n2 := dirnames2[i]
+		if n1 != n2 {
+			t.Fatalf("different name i=%d n1=%s n2=%s\n", i, n1, n2)
+		}
+	}
+}
diff --git a/libgo/go/os/os_windows_test.go b/libgo/go/os/os_windows_test.go
new file mode 100644
index 0000000..8c14103
--- /dev/null
+++ b/libgo/go/os/os_windows_test.go
@@ -0,0 +1,1188 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package os_test
+
+import (
+	"errors"
+	"fmt"
+	"internal/poll"
+	"internal/syscall/windows"
+	"internal/syscall/windows/registry"
+	"internal/testenv"
+	"io"
+	"io/ioutil"
+	"os"
+	osexec "os/exec"
+	"path/filepath"
+	"reflect"
+	"runtime"
+	"sort"
+	"strings"
+	"syscall"
+	"testing"
+	"unicode/utf16"
+	"unsafe"
+)
+
+// For TestRawConnReadWrite.
+type syscallDescriptor = syscall.Handle
+
+func TestSameWindowsFile(t *testing.T) {
+	temp, err := ioutil.TempDir("", "TestSameWindowsFile")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(temp)
+
+	wd, err := os.Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = os.Chdir(temp)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Chdir(wd)
+
+	f, err := os.Create("a")
+	if err != nil {
+		t.Fatal(err)
+	}
+	f.Close()
+
+	ia1, err := os.Stat("a")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	path, err := filepath.Abs("a")
+	if err != nil {
+		t.Fatal(err)
+	}
+	ia2, err := os.Stat(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !os.SameFile(ia1, ia2) {
+		t.Errorf("files should be same")
+	}
+
+	p := filepath.VolumeName(path) + filepath.Base(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	ia3, err := os.Stat(p)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !os.SameFile(ia1, ia3) {
+		t.Errorf("files should be same")
+	}
+}
+
+type dirLinkTest struct {
+	name    string
+	mklink  func(link, target string) error
+	issueNo int // correspondent issue number (for broken tests)
+}
+
+func testDirLinks(t *testing.T, tests []dirLinkTest) {
+	tmpdir, err := ioutil.TempDir("", "testDirLinks")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+
+	oldwd, err := os.Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = os.Chdir(tmpdir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Chdir(oldwd)
+
+	dir := filepath.Join(tmpdir, "dir")
+	err = os.Mkdir(dir, 0777)
+	if err != nil {
+		t.Fatal(err)
+	}
+	fi, err := os.Stat(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = ioutil.WriteFile(filepath.Join(dir, "abc"), []byte("abc"), 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, test := range tests {
+		link := filepath.Join(tmpdir, test.name+"_link")
+		err := test.mklink(link, dir)
+		if err != nil {
+			t.Errorf("creating link for %q test failed: %v", test.name, err)
+			continue
+		}
+
+		data, err := ioutil.ReadFile(filepath.Join(link, "abc"))
+		if err != nil {
+			t.Errorf("failed to read abc file: %v", err)
+			continue
+		}
+		if string(data) != "abc" {
+			t.Errorf(`abc file is expected to have "abc" in it, but has %v`, data)
+			continue
+		}
+
+		if test.issueNo > 0 {
+			t.Logf("skipping broken %q test: see issue %d", test.name, test.issueNo)
+			continue
+		}
+
+		fi1, err := os.Stat(link)
+		if err != nil {
+			t.Errorf("failed to stat link %v: %v", link, err)
+			continue
+		}
+		if !fi1.IsDir() {
+			t.Errorf("%q should be a directory", link)
+			continue
+		}
+		if fi1.Name() != filepath.Base(link) {
+			t.Errorf("Stat(%q).Name() = %q, want %q", link, fi1.Name(), filepath.Base(link))
+			continue
+		}
+		if !os.SameFile(fi, fi1) {
+			t.Errorf("%q should point to %q", link, dir)
+			continue
+		}
+
+		fi2, err := os.Lstat(link)
+		if err != nil {
+			t.Errorf("failed to lstat link %v: %v", link, err)
+			continue
+		}
+		if m := fi2.Mode(); m&os.ModeSymlink == 0 {
+			t.Errorf("%q should be a link, but is not (mode=0x%x)", link, uint32(m))
+			continue
+		}
+		if m := fi2.Mode(); m&os.ModeDir != 0 {
+			t.Errorf("%q should be a link, not a directory (mode=0x%x)", link, uint32(m))
+			continue
+		}
+	}
+}
+
+// reparseData is used to build reparse buffer data required for tests.
+type reparseData struct {
+	substituteName namePosition
+	printName      namePosition
+	pathBuf        []uint16
+}
+
+type namePosition struct {
+	offset uint16
+	length uint16
+}
+
+func (rd *reparseData) addUTF16s(s []uint16) (offset uint16) {
+	off := len(rd.pathBuf) * 2
+	rd.pathBuf = append(rd.pathBuf, s...)
+	return uint16(off)
+}
+
+func (rd *reparseData) addString(s string) (offset, length uint16) {
+	p := syscall.StringToUTF16(s)
+	return rd.addUTF16s(p), uint16(len(p)-1) * 2 // do not include terminating NUL in the length (as per PrintNameLength and SubstituteNameLength documentation)
+}
+
+func (rd *reparseData) addSubstituteName(name string) {
+	rd.substituteName.offset, rd.substituteName.length = rd.addString(name)
+}
+
+func (rd *reparseData) addPrintName(name string) {
+	rd.printName.offset, rd.printName.length = rd.addString(name)
+}
+
+func (rd *reparseData) addStringNoNUL(s string) (offset, length uint16) {
+	p := syscall.StringToUTF16(s)
+	p = p[:len(p)-1]
+	return rd.addUTF16s(p), uint16(len(p)) * 2
+}
+
+func (rd *reparseData) addSubstituteNameNoNUL(name string) {
+	rd.substituteName.offset, rd.substituteName.length = rd.addStringNoNUL(name)
+}
+
+func (rd *reparseData) addPrintNameNoNUL(name string) {
+	rd.printName.offset, rd.printName.length = rd.addStringNoNUL(name)
+}
+
+// pathBuffeLen returns length of rd pathBuf in bytes.
+func (rd *reparseData) pathBuffeLen() uint16 {
+	return uint16(len(rd.pathBuf)) * 2
+}
+
+// Windows REPARSE_DATA_BUFFER contains union member, and cannot be
+// translated into Go directly. _REPARSE_DATA_BUFFER type is to help
+// construct alternative versions of Windows REPARSE_DATA_BUFFER with
+// union part of SymbolicLinkReparseBuffer or MountPointReparseBuffer type.
+type _REPARSE_DATA_BUFFER struct {
+	header windows.REPARSE_DATA_BUFFER_HEADER
+	detail [syscall.MAXIMUM_REPARSE_DATA_BUFFER_SIZE]byte
+}
+
+func createDirLink(link string, rdb *_REPARSE_DATA_BUFFER) error {
+	err := os.Mkdir(link, 0777)
+	if err != nil {
+		return err
+	}
+
+	linkp := syscall.StringToUTF16(link)
+	fd, err := syscall.CreateFile(&linkp[0], syscall.GENERIC_WRITE, 0, nil, syscall.OPEN_EXISTING,
+		syscall.FILE_FLAG_OPEN_REPARSE_POINT|syscall.FILE_FLAG_BACKUP_SEMANTICS, 0)
+	if err != nil {
+		return err
+	}
+	defer syscall.CloseHandle(fd)
+
+	buflen := uint32(rdb.header.ReparseDataLength) + uint32(unsafe.Sizeof(rdb.header))
+	var bytesReturned uint32
+	return syscall.DeviceIoControl(fd, windows.FSCTL_SET_REPARSE_POINT,
+		(*byte)(unsafe.Pointer(&rdb.header)), buflen, nil, 0, &bytesReturned, nil)
+}
+
+func createMountPoint(link string, target *reparseData) error {
+	var buf *windows.MountPointReparseBuffer
+	buflen := uint16(unsafe.Offsetof(buf.PathBuffer)) + target.pathBuffeLen() // see ReparseDataLength documentation
+	byteblob := make([]byte, buflen)
+	buf = (*windows.MountPointReparseBuffer)(unsafe.Pointer(&byteblob[0]))
+	buf.SubstituteNameOffset = target.substituteName.offset
+	buf.SubstituteNameLength = target.substituteName.length
+	buf.PrintNameOffset = target.printName.offset
+	buf.PrintNameLength = target.printName.length
+	pbuflen := len(target.pathBuf)
+	copy((*[2048]uint16)(unsafe.Pointer(&buf.PathBuffer[0]))[:pbuflen:pbuflen], target.pathBuf)
+
+	var rdb _REPARSE_DATA_BUFFER
+	rdb.header.ReparseTag = windows.IO_REPARSE_TAG_MOUNT_POINT
+	rdb.header.ReparseDataLength = buflen
+	copy(rdb.detail[:], byteblob)
+
+	return createDirLink(link, &rdb)
+}
+
+func TestDirectoryJunction(t *testing.T) {
+	var tests = []dirLinkTest{
+		{
+			// Create link similar to what mklink does, by inserting \??\ at the front of absolute target.
+			name: "standard",
+			mklink: func(link, target string) error {
+				var t reparseData
+				t.addSubstituteName(`\??\` + target)
+				t.addPrintName(target)
+				return createMountPoint(link, &t)
+			},
+		},
+		{
+			// Do as junction utility https://technet.microsoft.com/en-au/sysinternals/bb896768.aspx does - set PrintNameLength to 0.
+			name: "have_blank_print_name",
+			mklink: func(link, target string) error {
+				var t reparseData
+				t.addSubstituteName(`\??\` + target)
+				t.addPrintName("")
+				return createMountPoint(link, &t)
+			},
+		},
+	}
+	output, _ := osexec.Command("cmd", "/c", "mklink", "/?").Output()
+	mklinkSupportsJunctionLinks := strings.Contains(string(output), " /J ")
+	if mklinkSupportsJunctionLinks {
+		tests = append(tests,
+			dirLinkTest{
+				name: "use_mklink_cmd",
+				mklink: func(link, target string) error {
+					output, err := osexec.Command("cmd", "/c", "mklink", "/J", link, target).CombinedOutput()
+					if err != nil {
+						t.Errorf("failed to run mklink %v %v: %v %q", link, target, err, output)
+					}
+					return nil
+				},
+			},
+		)
+	} else {
+		t.Log(`skipping "use_mklink_cmd" test, mklink does not supports directory junctions`)
+	}
+	testDirLinks(t, tests)
+}
+
+func enableCurrentThreadPrivilege(privilegeName string) error {
+	ct, err := windows.GetCurrentThread()
+	if err != nil {
+		return err
+	}
+	var t syscall.Token
+	err = windows.OpenThreadToken(ct, syscall.TOKEN_QUERY|windows.TOKEN_ADJUST_PRIVILEGES, false, &t)
+	if err != nil {
+		return err
+	}
+	defer syscall.CloseHandle(syscall.Handle(t))
+
+	var tp windows.TOKEN_PRIVILEGES
+
+	privStr, err := syscall.UTF16PtrFromString(privilegeName)
+	if err != nil {
+		return err
+	}
+	err = windows.LookupPrivilegeValue(nil, privStr, &tp.Privileges[0].Luid)
+	if err != nil {
+		return err
+	}
+	tp.PrivilegeCount = 1
+	tp.Privileges[0].Attributes = windows.SE_PRIVILEGE_ENABLED
+	return windows.AdjustTokenPrivileges(t, false, &tp, 0, nil, nil)
+}
+
+func createSymbolicLink(link string, target *reparseData, isrelative bool) error {
+	var buf *windows.SymbolicLinkReparseBuffer
+	buflen := uint16(unsafe.Offsetof(buf.PathBuffer)) + target.pathBuffeLen() // see ReparseDataLength documentation
+	byteblob := make([]byte, buflen)
+	buf = (*windows.SymbolicLinkReparseBuffer)(unsafe.Pointer(&byteblob[0]))
+	buf.SubstituteNameOffset = target.substituteName.offset
+	buf.SubstituteNameLength = target.substituteName.length
+	buf.PrintNameOffset = target.printName.offset
+	buf.PrintNameLength = target.printName.length
+	if isrelative {
+		buf.Flags = windows.SYMLINK_FLAG_RELATIVE
+	}
+	pbuflen := len(target.pathBuf)
+	copy((*[2048]uint16)(unsafe.Pointer(&buf.PathBuffer[0]))[:pbuflen:pbuflen], target.pathBuf)
+
+	var rdb _REPARSE_DATA_BUFFER
+	rdb.header.ReparseTag = syscall.IO_REPARSE_TAG_SYMLINK
+	rdb.header.ReparseDataLength = buflen
+	copy(rdb.detail[:], byteblob)
+
+	return createDirLink(link, &rdb)
+}
+
+func TestDirectorySymbolicLink(t *testing.T) {
+	var tests []dirLinkTest
+	output, _ := osexec.Command("cmd", "/c", "mklink", "/?").Output()
+	mklinkSupportsDirectorySymbolicLinks := strings.Contains(string(output), " /D ")
+	if mklinkSupportsDirectorySymbolicLinks {
+		tests = append(tests,
+			dirLinkTest{
+				name: "use_mklink_cmd",
+				mklink: func(link, target string) error {
+					output, err := osexec.Command("cmd", "/c", "mklink", "/D", link, target).CombinedOutput()
+					if err != nil {
+						t.Errorf("failed to run mklink %v %v: %v %q", link, target, err, output)
+					}
+					return nil
+				},
+			},
+		)
+	} else {
+		t.Log(`skipping "use_mklink_cmd" test, mklink does not supports directory symbolic links`)
+	}
+
+	// The rest of these test requires SeCreateSymbolicLinkPrivilege to be held.
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	err := windows.ImpersonateSelf(windows.SecurityImpersonation)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer windows.RevertToSelf()
+
+	err = enableCurrentThreadPrivilege("SeCreateSymbolicLinkPrivilege")
+	if err != nil {
+		t.Skipf(`skipping some tests, could not enable "SeCreateSymbolicLinkPrivilege": %v`, err)
+	}
+	tests = append(tests,
+		dirLinkTest{
+			name: "use_os_pkg",
+			mklink: func(link, target string) error {
+				return os.Symlink(target, link)
+			},
+		},
+		dirLinkTest{
+			// Create link similar to what mklink does, by inserting \??\ at the front of absolute target.
+			name: "standard",
+			mklink: func(link, target string) error {
+				var t reparseData
+				t.addPrintName(target)
+				t.addSubstituteName(`\??\` + target)
+				return createSymbolicLink(link, &t, false)
+			},
+		},
+		dirLinkTest{
+			name: "relative",
+			mklink: func(link, target string) error {
+				var t reparseData
+				t.addSubstituteNameNoNUL(filepath.Base(target))
+				t.addPrintNameNoNUL(filepath.Base(target))
+				return createSymbolicLink(link, &t, true)
+			},
+		},
+	)
+	testDirLinks(t, tests)
+}
+
+func TestNetworkSymbolicLink(t *testing.T) {
+	testenv.MustHaveSymlink(t)
+
+	const _NERR_ServerNotStarted = syscall.Errno(2114)
+
+	dir, err := ioutil.TempDir("", "TestNetworkSymbolicLink")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(dir)
+
+	oldwd, err := os.Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = os.Chdir(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Chdir(oldwd)
+
+	shareName := "GoSymbolicLinkTestShare" // hope no conflictions
+	sharePath := filepath.Join(dir, shareName)
+	testDir := "TestDir"
+
+	err = os.MkdirAll(filepath.Join(sharePath, testDir), 0777)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	wShareName, err := syscall.UTF16PtrFromString(shareName)
+	if err != nil {
+		t.Fatal(err)
+	}
+	wSharePath, err := syscall.UTF16PtrFromString(sharePath)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	p := windows.SHARE_INFO_2{
+		Netname:     wShareName,
+		Type:        windows.STYPE_DISKTREE,
+		Remark:      nil,
+		Permissions: 0,
+		MaxUses:     1,
+		CurrentUses: 0,
+		Path:        wSharePath,
+		Passwd:      nil,
+	}
+
+	err = windows.NetShareAdd(nil, 2, (*byte)(unsafe.Pointer(&p)), nil)
+	if err != nil {
+		if err == syscall.ERROR_ACCESS_DENIED {
+			t.Skip("you don't have enough privileges to add network share")
+		}
+		if err == _NERR_ServerNotStarted {
+			t.Skip(_NERR_ServerNotStarted.Error())
+		}
+		t.Fatal(err)
+	}
+	defer func() {
+		err := windows.NetShareDel(nil, wShareName, 0)
+		if err != nil {
+			t.Fatal(err)
+		}
+	}()
+
+	UNCPath := `\\localhost\` + shareName + `\`
+
+	fi1, err := os.Stat(sharePath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	fi2, err := os.Stat(UNCPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !os.SameFile(fi1, fi2) {
+		t.Fatalf("%q and %q should be the same directory, but not", sharePath, UNCPath)
+	}
+
+	target := filepath.Join(UNCPath, testDir)
+	link := "link"
+
+	err = os.Symlink(target, link)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(link)
+
+	got, err := os.Readlink(link)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got != target {
+		t.Errorf(`os.Readlink("%s"): got %v, want %v`, link, got, target)
+	}
+
+	got, err = filepath.EvalSymlinks(link)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got != target {
+		t.Errorf(`filepath.EvalSymlinks("%s"): got %v, want %v`, link, got, target)
+	}
+}
+
+func TestStartProcessAttr(t *testing.T) {
+	p, err := os.StartProcess(os.Getenv("COMSPEC"), []string{"/c", "cd"}, new(os.ProcAttr))
+	if err != nil {
+		return
+	}
+	defer p.Wait()
+	t.Fatalf("StartProcess expected to fail, but succeeded.")
+}
+
+func TestShareNotExistError(t *testing.T) {
+	if testing.Short() {
+		t.Skip("slow test that uses network; skipping")
+	}
+	_, err := os.Stat(`\\no_such_server\no_such_share\no_such_file`)
+	if err == nil {
+		t.Fatal("stat succeeded, but expected to fail")
+	}
+	if !os.IsNotExist(err) {
+		t.Fatalf("os.Stat failed with %q, but os.IsNotExist(err) is false", err)
+	}
+}
+
+func TestBadNetPathError(t *testing.T) {
+	const ERROR_BAD_NETPATH = syscall.Errno(53)
+	if !os.IsNotExist(ERROR_BAD_NETPATH) {
+		t.Fatal("os.IsNotExist(syscall.Errno(53)) is false, but want true")
+	}
+}
+
+func TestStatDir(t *testing.T) {
+	defer chtmpdir(t)()
+
+	f, err := os.Open(".")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer f.Close()
+
+	fi, err := f.Stat()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = os.Chdir("..")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	fi2, err := f.Stat()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !os.SameFile(fi, fi2) {
+		t.Fatal("race condition occurred")
+	}
+}
+
+func TestOpenVolumeName(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "TestOpenVolumeName")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+
+	wd, err := os.Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = os.Chdir(tmpdir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Chdir(wd)
+
+	want := []string{"file1", "file2", "file3", "gopher.txt"}
+	sort.Strings(want)
+	for _, name := range want {
+		err := ioutil.WriteFile(filepath.Join(tmpdir, name), nil, 0777)
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	f, err := os.Open(filepath.VolumeName(tmpdir))
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer f.Close()
+
+	have, err := f.Readdirnames(-1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	sort.Strings(have)
+
+	if strings.Join(want, "/") != strings.Join(have, "/") {
+		t.Fatalf("unexpected file list %q, want %q", have, want)
+	}
+}
+
+func TestDeleteReadOnly(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "TestDeleteReadOnly")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	p := filepath.Join(tmpdir, "a")
+	// This sets FILE_ATTRIBUTE_READONLY.
+	f, err := os.OpenFile(p, os.O_CREATE, 0400)
+	if err != nil {
+		t.Fatal(err)
+	}
+	f.Close()
+
+	if err = os.Chmod(p, 0400); err != nil {
+		t.Fatal(err)
+	}
+	if err = os.Remove(p); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestStatSymlinkLoop(t *testing.T) {
+	testenv.MustHaveSymlink(t)
+
+	defer chtmpdir(t)()
+
+	err := os.Symlink("x", "y")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove("y")
+
+	err = os.Symlink("y", "x")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove("x")
+
+	_, err = os.Stat("x")
+	if _, ok := err.(*os.PathError); !ok {
+		t.Errorf("expected *PathError, got %T: %v\n", err, err)
+	}
+}
+
+func TestReadStdin(t *testing.T) {
+	old := poll.ReadConsole
+	defer func() {
+		poll.ReadConsole = old
+	}()
+
+	testConsole := os.NewConsoleFile(syscall.Stdin, "test")
+
+	var tests = []string{
+		"abc",
+		"äöü",
+		"\u3042",
+		"“hi”™",
+		"hello\x1aworld",
+		"\U0001F648\U0001F649\U0001F64A",
+	}
+
+	for _, consoleSize := range []int{1, 2, 3, 10, 16, 100, 1000} {
+		for _, readSize := range []int{1, 2, 3, 4, 5, 8, 10, 16, 20, 50, 100} {
+			for _, s := range tests {
+				t.Run(fmt.Sprintf("c%d/r%d/%s", consoleSize, readSize, s), func(t *testing.T) {
+					s16 := utf16.Encode([]rune(s))
+					poll.ReadConsole = func(h syscall.Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) error {
+						if inputControl != nil {
+							t.Fatalf("inputControl not nil")
+						}
+						n := int(toread)
+						if n > consoleSize {
+							n = consoleSize
+						}
+						n = copy((*[10000]uint16)(unsafe.Pointer(buf))[:n:n], s16)
+						s16 = s16[n:]
+						*read = uint32(n)
+						t.Logf("read %d -> %d", toread, *read)
+						return nil
+					}
+
+					var all []string
+					var buf []byte
+					chunk := make([]byte, readSize)
+					for {
+						n, err := testConsole.Read(chunk)
+						buf = append(buf, chunk[:n]...)
+						if err == io.EOF {
+							all = append(all, string(buf))
+							if len(all) >= 5 {
+								break
+							}
+							buf = buf[:0]
+						} else if err != nil {
+							t.Fatalf("reading %q: error: %v", s, err)
+						}
+						if len(buf) >= 2000 {
+							t.Fatalf("reading %q: stuck in loop: %q", s, buf)
+						}
+					}
+
+					want := strings.Split(s, "\x1a")
+					for len(want) < 5 {
+						want = append(want, "")
+					}
+					if !reflect.DeepEqual(all, want) {
+						t.Errorf("reading %q:\nhave %x\nwant %x", s, all, want)
+					}
+				})
+			}
+		}
+	}
+}
+
+func TestStatPagefile(t *testing.T) {
+	fi, err := os.Stat(`c:\pagefile.sys`)
+	if err == nil {
+		if fi.Name() == "" {
+			t.Fatal(`FileInfo of c:\pagefile.sys has empty name`)
+		}
+		return
+	}
+	if os.IsNotExist(err) {
+		t.Skip(`skipping because c:\pagefile.sys is not found`)
+	}
+	t.Fatal(err)
+}
+
+// syscallCommandLineToArgv calls syscall.CommandLineToArgv
+// and converts returned result into []string.
+func syscallCommandLineToArgv(cmd string) ([]string, error) {
+	var argc int32
+	argv, err := syscall.CommandLineToArgv(&syscall.StringToUTF16(cmd)[0], &argc)
+	if err != nil {
+		return nil, err
+	}
+	defer syscall.LocalFree(syscall.Handle(uintptr(unsafe.Pointer(argv))))
+
+	var args []string
+	for _, v := range (*argv)[:argc] {
+		args = append(args, syscall.UTF16ToString((*v)[:]))
+	}
+	return args, nil
+}
+
+// compareCommandLineToArgvWithSyscall ensures that
+// os.CommandLineToArgv(cmd) and syscall.CommandLineToArgv(cmd)
+// return the same result.
+func compareCommandLineToArgvWithSyscall(t *testing.T, cmd string) {
+	syscallArgs, err := syscallCommandLineToArgv(cmd)
+	if err != nil {
+		t.Fatal(err)
+	}
+	args := os.CommandLineToArgv(cmd)
+	if want, have := fmt.Sprintf("%q", syscallArgs), fmt.Sprintf("%q", args); want != have {
+		t.Errorf("testing os.commandLineToArgv(%q) failed: have %q want %q", cmd, args, syscallArgs)
+		return
+	}
+}
+
+func TestCmdArgs(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "TestCmdArgs")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+
+	const prog = `
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func main() {
+	fmt.Printf("%q", os.Args)
+}
+`
+	src := filepath.Join(tmpdir, "main.go")
+	err = ioutil.WriteFile(src, []byte(prog), 0666)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	exe := filepath.Join(tmpdir, "main.exe")
+	cmd := osexec.Command(testenv.GoToolPath(t), "build", "-o", exe, src)
+	cmd.Dir = tmpdir
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatalf("building main.exe failed: %v\n%s", err, out)
+	}
+
+	var cmds = []string{
+		``,
+		` a b c`,
+		` "`,
+		` ""`,
+		` """`,
+		` "" a`,
+		` "123"`,
+		` \"123\"`,
+		` \"123 456\"`,
+		` \\"`,
+		` \\\"`,
+		` \\\\\"`,
+		` \\\"x`,
+		` """"\""\\\"`,
+		` abc`,
+		` \\\\\""x"""y z`,
+		"\tb\t\"x\ty\"",
+		` "Брад" d e`,
+		// examples from https://msdn.microsoft.com/en-us/library/17w5ykft.aspx
+		` "abc" d e`,
+		` a\\b d"e f"g h`,
+		` a\\\"b c d`,
+		` a\\\\"b c" d e`,
+		// http://daviddeley.com/autohotkey/parameters/parameters.htm#WINARGV
+		// from 5.4  Examples
+		` CallMeIshmael`,
+		` "Call Me Ishmael"`,
+		` Cal"l Me I"shmael`,
+		` CallMe\"Ishmael`,
+		` "CallMe\"Ishmael"`,
+		` "Call Me Ishmael\\"`,
+		` "CallMe\\\"Ishmael"`,
+		` a\\\b`,
+		` "a\\\b"`,
+		// from 5.5  Some Common Tasks
+		` "\"Call Me Ishmael\""`,
+		` "C:\TEST A\\"`,
+		` "\"C:\TEST A\\\""`,
+		// from 5.6  The Microsoft Examples Explained
+		` "a b c"  d  e`,
+		` "ab\"c"  "\\"  d`,
+		` a\\\b d"e f"g h`,
+		` a\\\"b c d`,
+		` a\\\\"b c" d e`,
+		// from 5.7  Double Double Quote Examples (pre 2008)
+		` "a b c""`,
+		` """CallMeIshmael"""  b  c`,
+		` """Call Me Ishmael"""`,
+		` """"Call Me Ishmael"" b c`,
+	}
+	for _, cmd := range cmds {
+		compareCommandLineToArgvWithSyscall(t, "test"+cmd)
+		compareCommandLineToArgvWithSyscall(t, `"cmd line"`+cmd)
+		compareCommandLineToArgvWithSyscall(t, exe+cmd)
+
+		// test both syscall.EscapeArg and os.commandLineToArgv
+		args := os.CommandLineToArgv(exe + cmd)
+		out, err := osexec.Command(args[0], args[1:]...).CombinedOutput()
+		if err != nil {
+			t.Fatalf("running %q failed: %v\n%v", args, err, string(out))
+		}
+		if want, have := fmt.Sprintf("%q", args), string(out); want != have {
+			t.Errorf("wrong output of executing %q: have %q want %q", args, have, want)
+			continue
+		}
+	}
+}
+
+func findOneDriveDir() (string, error) {
+	// as per https://stackoverflow.com/questions/42519624/how-to-determine-location-of-onedrive-on-windows-7-and-8-in-c
+	const onedrivekey = `SOFTWARE\Microsoft\OneDrive`
+	k, err := registry.OpenKey(registry.CURRENT_USER, onedrivekey, registry.READ)
+	if err != nil {
+		return "", fmt.Errorf("OpenKey(%q) failed: %v", onedrivekey, err)
+	}
+	defer k.Close()
+
+	path, _, err := k.GetStringValue("UserFolder")
+	if err != nil {
+		return "", fmt.Errorf("reading UserFolder failed: %v", err)
+	}
+	return path, nil
+}
+
+// TestOneDrive verifies that OneDrive folder is a directory and not a symlink.
+func TestOneDrive(t *testing.T) {
+	dir, err := findOneDriveDir()
+	if err != nil {
+		t.Skipf("Skipping, because we did not find OneDrive directory: %v", err)
+	}
+	testDirStats(t, dir)
+}
+
+func TestWindowsDevNullFile(t *testing.T) {
+	testDevNullFile(t, "NUL", true)
+	testDevNullFile(t, "nul", true)
+	testDevNullFile(t, "Nul", true)
+
+	f1, err := os.Open("NUL")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer f1.Close()
+
+	fi1, err := f1.Stat()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	f2, err := os.Open("nul")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer f2.Close()
+
+	fi2, err := f2.Stat()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !os.SameFile(fi1, fi2) {
+		t.Errorf(`"NUL" and "nul" are not the same file`)
+	}
+}
+
+// TestSymlinkCreation verifies that creating a symbolic link
+// works on Windows when developer mode is active.
+// This is supported starting Windows 10 (1703, v10.0.14972).
+func TestSymlinkCreation(t *testing.T) {
+	if !isWindowsDeveloperModeActive() {
+		t.Skip("Windows developer mode is not active")
+	}
+
+	temp, err := ioutil.TempDir("", "TestSymlinkCreation")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(temp)
+
+	dummyFile := filepath.Join(temp, "file")
+	err = ioutil.WriteFile(dummyFile, []byte(""), 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	linkFile := filepath.Join(temp, "link")
+	err = os.Symlink(dummyFile, linkFile)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+// isWindowsDeveloperModeActive checks whether or not the developer mode is active on Windows 10.
+// Returns false for prior Windows versions.
+// see https://docs.microsoft.com/en-us/windows/uwp/get-started/enable-your-device-for-development
+func isWindowsDeveloperModeActive() bool {
+	key, err := registry.OpenKey(registry.LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\AppModelUnlock", registry.READ)
+	if err != nil {
+		return false
+	}
+
+	val, _, err := key.GetIntegerValue("AllowDevelopmentWithoutDevLicense")
+	if err != nil {
+		return false
+	}
+
+	return val != 0
+}
+
+// TestStatOfInvalidName is regression test for issue #24999.
+func TestStatOfInvalidName(t *testing.T) {
+	_, err := os.Stat("*.go")
+	if err == nil {
+		t.Fatal(`os.Stat("*.go") unexpectedly succeeded`)
+	}
+}
+
+// findUnusedDriveLetter searches mounted drive list on the system
+// (starting from Z: and ending at D:) for unused drive letter.
+// It returns path to the found drive root directory (like Z:\) or error.
+func findUnusedDriveLetter() (string, error) {
+	// Do not use A: and B:, because they are reserved for floppy drive.
+	// Do not use C:, because it is normally used for main drive.
+	for l := 'Z'; l >= 'D'; l-- {
+		p := string(l) + `:\`
+		_, err := os.Stat(p)
+		if os.IsNotExist(err) {
+			return p, nil
+		}
+	}
+	return "", errors.New("Could not find unused drive letter.")
+}
+
+func TestRootDirAsTemp(t *testing.T) {
+	testenv.MustHaveExec(t)
+
+	if os.Getenv("GO_WANT_HELPER_PROCESS") == "1" {
+		fmt.Print(os.TempDir())
+		os.Exit(0)
+	}
+
+	newtmp, err := findUnusedDriveLetter()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	cmd := osexec.Command(os.Args[0], "-test.run=TestRootDirAsTemp")
+	cmd.Env = os.Environ()
+	cmd.Env = append(cmd.Env, "GO_WANT_HELPER_PROCESS=1")
+	cmd.Env = append(cmd.Env, "TMP="+newtmp)
+	cmd.Env = append(cmd.Env, "TEMP="+newtmp)
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatalf("Failed to spawn child process: %v %q", err, string(output))
+	}
+	if want, have := newtmp, string(output); have != want {
+		t.Fatalf("unexpected child process output %q, want %q", have, want)
+	}
+}
+
+func testReadlink(t *testing.T, path, want string) {
+	got, err := os.Readlink(path)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	if got != want {
+		t.Errorf(`Readlink(%q): got %q, want %q`, path, got, want)
+	}
+}
+
+func mklink(t *testing.T, link, target string) {
+	output, err := osexec.Command("cmd", "/c", "mklink", link, target).CombinedOutput()
+	if err != nil {
+		t.Fatalf("failed to run mklink %v %v: %v %q", link, target, err, output)
+	}
+}
+
+func mklinkj(t *testing.T, link, target string) {
+	output, err := osexec.Command("cmd", "/c", "mklink", "/J", link, target).CombinedOutput()
+	if err != nil {
+		t.Fatalf("failed to run mklink %v %v: %v %q", link, target, err, output)
+	}
+}
+
+func mklinkd(t *testing.T, link, target string) {
+	output, err := osexec.Command("cmd", "/c", "mklink", "/D", link, target).CombinedOutput()
+	if err != nil {
+		t.Fatalf("failed to run mklink %v %v: %v %q", link, target, err, output)
+	}
+}
+
+func TestWindowsReadlink(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "TestWindowsReadlink")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+
+	// Make sure tmpdir is not a symlink, otherwise tests will fail.
+	tmpdir, err = filepath.EvalSymlinks(tmpdir)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	wd, err := os.Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = os.Chdir(tmpdir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Chdir(wd)
+
+	vol := filepath.VolumeName(tmpdir)
+	output, err := osexec.Command("cmd", "/c", "mountvol", vol, "/L").CombinedOutput()
+	if err != nil {
+		t.Fatalf("failed to run mountvol %v /L: %v %q", vol, err, output)
+	}
+	ntvol := strings.Trim(string(output), " \n\r")
+
+	dir := filepath.Join(tmpdir, "dir")
+	err = os.MkdirAll(dir, 0777)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	absdirjlink := filepath.Join(tmpdir, "absdirjlink")
+	mklinkj(t, absdirjlink, dir)
+	testReadlink(t, absdirjlink, dir)
+
+	ntdirjlink := filepath.Join(tmpdir, "ntdirjlink")
+	mklinkj(t, ntdirjlink, ntvol+absdirjlink[len(filepath.VolumeName(absdirjlink)):])
+	testReadlink(t, ntdirjlink, absdirjlink)
+
+	ntdirjlinktolink := filepath.Join(tmpdir, "ntdirjlinktolink")
+	mklinkj(t, ntdirjlinktolink, ntvol+absdirjlink[len(filepath.VolumeName(absdirjlink)):])
+	testReadlink(t, ntdirjlinktolink, absdirjlink)
+
+	mklinkj(t, "reldirjlink", "dir")
+	testReadlink(t, "reldirjlink", dir) // relative directory junction resolves to absolute path
+
+	// Make sure we have sufficient privilege to run mklink command.
+	testenv.MustHaveSymlink(t)
+
+	absdirlink := filepath.Join(tmpdir, "absdirlink")
+	mklinkd(t, absdirlink, dir)
+	testReadlink(t, absdirlink, dir)
+
+	ntdirlink := filepath.Join(tmpdir, "ntdirlink")
+	mklinkd(t, ntdirlink, ntvol+absdirlink[len(filepath.VolumeName(absdirlink)):])
+	testReadlink(t, ntdirlink, absdirlink)
+
+	mklinkd(t, "reldirlink", "dir")
+	testReadlink(t, "reldirlink", "dir")
+
+	file := filepath.Join(tmpdir, "file")
+	err = ioutil.WriteFile(file, []byte(""), 0666)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	filelink := filepath.Join(tmpdir, "filelink")
+	mklink(t, filelink, file)
+	testReadlink(t, filelink, file)
+
+	linktofilelink := filepath.Join(tmpdir, "linktofilelink")
+	mklink(t, linktofilelink, ntvol+filelink[len(filepath.VolumeName(filelink)):])
+	testReadlink(t, linktofilelink, filelink)
+
+	mklink(t, "relfilelink", "file")
+	testReadlink(t, "relfilelink", "file")
+}
+
+// os.Mkdir(os.DevNull) fails.
+func TestMkdirDevNull(t *testing.T) {
+	err := os.Mkdir(os.DevNull, 777)
+	oserr, ok := err.(*os.PathError)
+	if !ok {
+		t.Fatalf("error (%T) is not *os.PathError", err)
+	}
+	errno, ok := oserr.Err.(syscall.Errno)
+	if !ok {
+		t.Fatalf("error (%T) is not syscall.Errno", oserr)
+	}
+	if errno != syscall.ENOTDIR {
+		t.Fatalf("error %d is not syscall.ENOTDIR", errno)
+	}
+}
diff --git a/libgo/go/os/path.go b/libgo/go/os/path.go
index 9d7ecad..ba43ea3 100644
--- a/libgo/go/os/path.go
+++ b/libgo/go/os/path.go
@@ -58,9 +58,6 @@
 	return nil
 }
 
-// removeAllTestHook is a hook for testing.
-var removeAllTestHook = func(err error) error { return err }
-
 // RemoveAll removes path and any children it contains.
 // It removes everything it can but returns the first error
 // it encounters. If the path does not exist, RemoveAll
diff --git a/libgo/go/os/path_unix.go b/libgo/go/os/path_unix.go
index 4c97f39..6ef6560 100644
--- a/libgo/go/os/path_unix.go
+++ b/libgo/go/os/path_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package os
 
diff --git a/libgo/go/os/path_windows_test.go b/libgo/go/os/path_windows_test.go
index f1745ad..862b404 100644
--- a/libgo/go/os/path_windows_test.go
+++ b/libgo/go/os/path_windows_test.go
@@ -74,3 +74,18 @@
 		t.Fatalf("MkdirAll(%q) should have failed, but did not", path)
 	}
 }
+
+func TestOpenRootSlash(t *testing.T) {
+	tests := []string{
+		`/`,
+		`\`,
+	}
+
+	for _, test := range tests {
+		dir, err := os.Open(test)
+		if err != nil {
+			t.Fatalf("Open(%q) failed: %v", test, err)
+		}
+		dir.Close()
+	}
+}
diff --git a/libgo/go/os/pipe_bsd.go b/libgo/go/os/pipe_bsd.go
index dc4c951..0d2d82f 100644
--- a/libgo/go/os/pipe_bsd.go
+++ b/libgo/go/os/pipe_bsd.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly js,wasm nacl solaris
+// +build aix darwin dragonfly js,wasm solaris
 
 package os
 
diff --git a/libgo/go/os/pipe_test.go b/libgo/go/os/pipe_test.go
index 4c53bc9..2e93e39 100644
--- a/libgo/go/os/pipe_test.go
+++ b/libgo/go/os/pipe_test.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // Test broken pipes on Unix systems.
-// +build !plan9,!nacl,!js
+// +build !plan9,!js
 
 package os_test
 
@@ -428,7 +428,7 @@
 	go func() {
 		defer wg.Done()
 		var buf [10]byte
-		r.SetReadDeadline(time.Now().Add(time.Second))
+		r.SetReadDeadline(time.Now().Add(time.Minute))
 		c <- true
 		if _, err := r.Read(buf[:]); os.IsTimeout(err) {
 			t.Error("read timed out")
diff --git a/libgo/go/os/rawconn_test.go b/libgo/go/os/rawconn_test.go
index 820150d..2554f5b 100644
--- a/libgo/go/os/rawconn_test.go
+++ b/libgo/go/os/rawconn_test.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // Test use of raw connections.
-// +build !plan9,!nacl,!js
+// +build !plan9,!js
 
 package os_test
 
diff --git a/libgo/go/os/removeall_at.go b/libgo/go/os/removeall_at.go
index 377aa49..afee01d 100644
--- a/libgo/go/os/removeall_at.go
+++ b/libgo/go/os/removeall_at.go
@@ -153,7 +153,6 @@
 
 	// Remove the directory itself.
 	unlinkError := unix.Unlinkat(parentFd, base, unix.AT_REMOVEDIR)
-	unlinkError = removeAllTestHook(unlinkError)
 	if unlinkError == nil || IsNotExist(unlinkError) {
 		return nil
 	}
diff --git a/libgo/go/os/removeall_noat.go b/libgo/go/os/removeall_noat.go
index cf26bdb..fb9b45f 100644
--- a/libgo/go/os/removeall_noat.go
+++ b/libgo/go/os/removeall_noat.go
@@ -8,6 +8,7 @@
 
 import (
 	"io"
+	"runtime"
 	"syscall"
 )
 
@@ -124,10 +125,16 @@
 
 	// Remove directory.
 	err1 := Remove(path)
-	err1 = removeAllTestHook(err1)
 	if err1 == nil || IsNotExist(err1) {
 		return nil
 	}
+	if runtime.GOOS == "windows" && IsPermission(err1) {
+		if fs, err := Stat(path); err == nil {
+			if err = Chmod(path, FileMode(0200|int(fs.Mode()))); err == nil {
+				err1 = Remove(path)
+			}
+		}
+	}
 	if err == nil {
 		err = err1
 	}
diff --git a/libgo/go/os/removeall_test.go b/libgo/go/os/removeall_test.go
index 4d556f9..8a71f68 100644
--- a/libgo/go/os/removeall_test.go
+++ b/libgo/go/os/removeall_test.go
@@ -5,7 +5,6 @@
 package os_test
 
 import (
-	"errors"
 	"fmt"
 	"io/ioutil"
 	. "os"
@@ -289,7 +288,7 @@
 // Issue #29983.
 func TestRemoveAllButReadOnlyAndPathError(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "js", "windows":
+	case "js", "windows":
 		t.Skipf("skipping test on %s", runtime.GOOS)
 	}
 
@@ -379,7 +378,7 @@
 
 func TestRemoveUnreadableDir(t *testing.T) {
 	switch runtime.GOOS {
-	case "nacl", "js", "windows":
+	case "js":
 		t.Skipf("skipping test on %s", runtime.GOOS)
 	}
 
@@ -413,14 +412,6 @@
 		t.Skip("skipping in short mode")
 	}
 
-	defer func(oldHook func(error) error) {
-		*RemoveAllTestHook = oldHook
-	}(*RemoveAllTestHook)
-
-	*RemoveAllTestHook = func(err error) error {
-		return errors.New("error from RemoveAllTestHook")
-	}
-
 	tmpDir, err := ioutil.TempDir("", "TestRemoveAll-")
 	if err != nil {
 		t.Fatal(err)
@@ -429,7 +420,7 @@
 
 	path := filepath.Join(tmpDir, "_TestRemoveAllWithMoreErrorThanReqSize_")
 
-	// Make directory with 1025 files and remove.
+	// Make directory with 1025 read-only files.
 	if err := MkdirAll(path, 0777); err != nil {
 		t.Fatalf("MkdirAll %q: %s", path, err)
 	}
@@ -442,13 +433,38 @@
 		fd.Close()
 	}
 
-	// This call should not hang
-	if err := RemoveAll(path); err == nil {
-		t.Fatal("Want error from RemoveAllTestHook, got nil")
+	// Make the parent directory read-only. On some platforms, this is what
+	// prevents os.Remove from removing the files within that directory.
+	if err := Chmod(path, 0555); err != nil {
+		t.Fatal(err)
+	}
+	defer Chmod(path, 0755)
+
+	// This call should not hang, even on a platform that disallows file deletion
+	// from read-only directories.
+	err = RemoveAll(path)
+
+	if Getuid() == 0 {
+		// On many platforms, root can remove files from read-only directories.
+		return
+	}
+	if err == nil {
+		if runtime.GOOS == "windows" {
+			// Marking a directory as read-only in Windows does not prevent the RemoveAll
+			// from creating or removing files within it.
+			return
+		}
+		t.Fatal("RemoveAll(<read-only directory>) = nil; want error")
 	}
 
-	// We hook to inject error, but the actual files must be deleted
-	if _, err := Lstat(path); err == nil {
-		t.Fatal("directory must be deleted even with removeAllTetHook run")
+	dir, err := Open(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer dir.Close()
+
+	names, _ := dir.Readdirnames(1025)
+	if len(names) < 1025 {
+		t.Fatalf("RemoveAll(<read-only directory>) unexpectedly removed %d read-only files from that directory", 1025-len(names))
 	}
 }
diff --git a/libgo/go/os/signal/doc.go b/libgo/go/os/signal/doc.go
index 16f49c7..2229d36 100644
--- a/libgo/go/os/signal/doc.go
+++ b/libgo/go/os/signal/doc.go
@@ -211,6 +211,14 @@
 not exit. If Reset is called, or Stop is called on all channels passed
 to Notify, then the default behavior will be restored.
 
+Additionally, if Notify is called, and Windows sends CTRL_CLOSE_EVENT,
+CTRL_LOGOFF_EVENT or CTRL_SHUTDOWN_EVENT to the process, Notify will
+return syscall.SIGTERM. Unlike Control-C and Control-Break, Notify does
+not change process behavior when either CTRL_CLOSE_EVENT,
+CTRL_LOGOFF_EVENT or CTRL_SHUTDOWN_EVENT is received - the process will
+still get terminated unless it exits. But receiving syscall.SIGTERM will
+give the process an opportunity to clean up before termination.
+
 Plan 9
 
 On Plan 9, signals have type syscall.Note, which is a string. Calling
diff --git a/libgo/go/os/signal/signal.go b/libgo/go/os/signal/signal.go
index a0eba0d..136dd9c 100644
--- a/libgo/go/os/signal/signal.go
+++ b/libgo/go/os/signal/signal.go
@@ -92,6 +92,15 @@
 	return sn >= 0 && signalIgnored(sn)
 }
 
+var (
+	// watchSignalLoopOnce guards calling the conditionally
+	// initialized watchSignalLoop. If watchSignalLoop is non-nil,
+	// it will be run in a goroutine lazily once Notify is invoked.
+	// See Issue 21576.
+	watchSignalLoopOnce sync.Once
+	watchSignalLoop     func()
+)
+
 // Notify causes package signal to relay incoming signals to c.
 // If no signals are provided, all incoming signals will be relayed to c.
 // Otherwise, just the provided signals will.
@@ -113,6 +122,12 @@
 		panic("os/signal: Notify using nil channel")
 	}
 
+	watchSignalLoopOnce.Do(func() {
+		if watchSignalLoop != nil {
+			go watchSignalLoop()
+		}
+	})
+
 	handlers.Lock()
 	defer handlers.Unlock()
 
diff --git a/libgo/go/os/signal/signal_plan9.go b/libgo/go/os/signal/signal_plan9.go
index a1eb688..8408607 100644
--- a/libgo/go/os/signal/signal_plan9.go
+++ b/libgo/go/os/signal/signal_plan9.go
@@ -20,7 +20,8 @@
 
 func init() {
 	signal_enable(0) // first call - initialize
-	go loop()
+
+	watchSignalLoop = loop
 }
 
 func loop() {
diff --git a/libgo/go/os/signal/signal_test.go b/libgo/go/os/signal/signal_test.go
index fe5893e..0708d4c 100644
--- a/libgo/go/os/signal/signal_test.go
+++ b/libgo/go/os/signal/signal_test.go
@@ -22,15 +22,51 @@
 	"time"
 )
 
-func waitSig(t *testing.T, c <-chan os.Signal, sig os.Signal) {
-	select {
-	case s := <-c:
-		if s != sig {
-			t.Fatalf("signal was %v, want %v", s, sig)
+var testDeadline time.Time
+
+func TestMain(m *testing.M) {
+	flag.Parse()
+
+	// TODO(golang.org/issue/28135): Remove this setup and use t.Deadline instead.
+	timeoutFlag := flag.Lookup("test.timeout")
+	if timeoutFlag != nil {
+		if d := timeoutFlag.Value.(flag.Getter).Get().(time.Duration); d != 0 {
+			testDeadline = time.Now().Add(d)
 		}
-	case <-time.After(1 * time.Second):
-		t.Fatalf("timeout waiting for %v", sig)
 	}
+
+	os.Exit(m.Run())
+}
+
+func waitSig(t *testing.T, c <-chan os.Signal, sig os.Signal) {
+	waitSig1(t, c, sig, false)
+}
+func waitSigAll(t *testing.T, c <-chan os.Signal, sig os.Signal) {
+	waitSig1(t, c, sig, true)
+}
+
+func waitSig1(t *testing.T, c <-chan os.Signal, sig os.Signal, all bool) {
+	// Sleep multiple times to give the kernel more tries to
+	// deliver the signal.
+	for i := 0; i < 10; i++ {
+		select {
+		case s := <-c:
+			// If the caller notified for all signals on
+			// c, filter out SIGURG, which is used for
+			// runtime preemption and can come at
+			// unpredictable times.
+			if all && s == syscall.SIGURG {
+				continue
+			}
+			if s != sig {
+				t.Fatalf("signal was %v, want %v", s, sig)
+			}
+			return
+
+		case <-time.After(100 * time.Millisecond):
+		}
+	}
+	t.Fatalf("timeout waiting for %v", sig)
 }
 
 // Test that basic signal handling works.
@@ -45,24 +81,26 @@
 	syscall.Kill(syscall.Getpid(), syscall.SIGHUP)
 	waitSig(t, c, syscall.SIGHUP)
 
-	// Ask for everything we can get.
-	c1 := make(chan os.Signal, 1)
+	// Ask for everything we can get. The buffer size has to be
+	// more than 1, since the runtime might send SIGURG signals.
+	// Using 10 is arbitrary.
+	c1 := make(chan os.Signal, 10)
 	Notify(c1)
 
 	// Send this process a SIGWINCH
 	t.Logf("sigwinch...")
 	syscall.Kill(syscall.Getpid(), syscall.SIGWINCH)
-	waitSig(t, c1, syscall.SIGWINCH)
+	waitSigAll(t, c1, syscall.SIGWINCH)
 
 	// Send two more SIGHUPs, to make sure that
 	// they get delivered on c1 and that not reading
 	// from c does not block everything.
 	t.Logf("sighup...")
 	syscall.Kill(syscall.Getpid(), syscall.SIGHUP)
-	waitSig(t, c1, syscall.SIGHUP)
+	waitSigAll(t, c1, syscall.SIGHUP)
 	t.Logf("sighup...")
 	syscall.Kill(syscall.Getpid(), syscall.SIGHUP)
-	waitSig(t, c1, syscall.SIGHUP)
+	waitSigAll(t, c1, syscall.SIGHUP)
 
 	// The first SIGHUP should be waiting for us on c.
 	waitSig(t, c, syscall.SIGHUP)
@@ -268,7 +306,15 @@
 		if sig == syscall.SIGWINCH || (sig == syscall.SIGHUP && *sendUncaughtSighup == 1) {
 			syscall.Kill(syscall.Getpid(), sig)
 		}
-		time.Sleep(100 * time.Millisecond)
+
+		// The kernel will deliver a signal as a thread returns
+		// from a syscall. If the only active thread is sleeping,
+		// and the system is busy, the kernel may not get around
+		// to waking up a thread to catch the signal.
+		// We try splitting up the sleep to give the kernel
+		// another chance to deliver the signal.
+		time.Sleep(50 * time.Millisecond)
+		time.Sleep(50 * time.Millisecond)
 
 		// Ask for signal
 		c := make(chan os.Signal, 1)
@@ -280,10 +326,11 @@
 		waitSig(t, c, sig)
 
 		Stop(c)
+		time.Sleep(50 * time.Millisecond)
 		select {
 		case s := <-c:
 			t.Fatalf("unexpected signal %v", s)
-		case <-time.After(100 * time.Millisecond):
+		case <-time.After(50 * time.Millisecond):
 			// nothing to read - good
 		}
 
@@ -294,10 +341,11 @@
 			syscall.Kill(syscall.Getpid(), sig)
 		}
 
+		time.Sleep(50 * time.Millisecond)
 		select {
 		case s := <-c:
 			t.Fatalf("unexpected signal %v", s)
-		case <-time.After(100 * time.Millisecond):
+		case <-time.After(50 * time.Millisecond):
 			// nothing to read - good
 		}
 	}
@@ -374,9 +422,26 @@
 
 	testenv.MustHaveExec(t)
 
+	// Call Notify for SIGINT before starting the child process.
+	// That ensures that SIGINT is not ignored for the child.
+	// This is necessary because if SIGINT is ignored when a
+	// Go program starts, then it remains ignored, and closing
+	// the last notification channel for SIGINT will switch it
+	// back to being ignored. In that case the assumption of
+	// atomicStopTestProgram, that it will either die from SIGINT
+	// or have it be reported, breaks down, as there is a third
+	// option: SIGINT might be ignored.
+	cs := make(chan os.Signal, 1)
+	Notify(cs, syscall.SIGINT)
+	defer Stop(cs)
+
 	const execs = 10
 	for i := 0; i < execs; i++ {
-		cmd := exec.Command(os.Args[0], "-test.run=TestAtomicStop")
+		timeout := "0"
+		if !testDeadline.IsZero() {
+			timeout = testDeadline.Sub(time.Now()).String()
+		}
+		cmd := exec.Command(os.Args[0], "-test.run=TestAtomicStop", "-test.timeout="+timeout)
 		cmd.Env = append(os.Environ(), "GO_TEST_ATOMIC_STOP=1")
 		out, err := cmd.CombinedOutput()
 		if err == nil {
@@ -414,7 +479,21 @@
 // It tries to trigger a signal delivery race. This function should
 // either catch a signal or die from it.
 func atomicStopTestProgram() {
+	// This test won't work if SIGINT is ignored here.
+	if Ignored(syscall.SIGINT) {
+		fmt.Println("SIGINT is ignored")
+		os.Exit(1)
+	}
+
 	const tries = 10
+
+	timeout := 2 * time.Second
+	if !testDeadline.IsZero() {
+		// Give each try an equal slice of the deadline, with one slice to spare for
+		// cleanup.
+		timeout = testDeadline.Sub(time.Now()) / (tries + 1)
+	}
+
 	pid := syscall.Getpid()
 	printed := false
 	for i := 0; i < tries; i++ {
@@ -437,7 +516,7 @@
 
 		select {
 		case <-cs:
-		case <-time.After(2 * time.Second):
+		case <-time.After(timeout):
 			if !printed {
 				fmt.Print("lost signal on tries:")
 				printed = true
@@ -453,3 +532,52 @@
 
 	os.Exit(0)
 }
+
+func TestTime(t *testing.T) {
+	// Test that signal works fine when we are in a call to get time,
+	// which on some platforms is using VDSO. See issue #34391.
+	dur := 3 * time.Second
+	if testing.Short() {
+		dur = 100 * time.Millisecond
+	}
+	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(4))
+	done := make(chan bool)
+	finished := make(chan bool)
+	go func() {
+		sig := make(chan os.Signal, 1)
+		Notify(sig, syscall.SIGUSR1)
+		defer Stop(sig)
+	Loop:
+		for {
+			select {
+			case <-sig:
+			case <-done:
+				break Loop
+			}
+		}
+		finished <- true
+	}()
+	go func() {
+	Loop:
+		for {
+			select {
+			case <-done:
+				break Loop
+			default:
+				syscall.Kill(syscall.Getpid(), syscall.SIGUSR1)
+				runtime.Gosched()
+			}
+		}
+		finished <- true
+	}()
+	t0 := time.Now()
+	for t1 := t0; t1.Sub(t0) < dur; t1 = time.Now() {
+	} // hammering on getting time
+	close(done)
+	<-finished
+	<-finished
+	// When run with 'go test -cpu=1,2,4' SIGUSR1 from this test can slip
+	// into subsequent TestSignal() causing failure.
+	// Sleep for a while to reduce the possibility of the failure.
+	time.Sleep(10 * time.Millisecond)
+}
diff --git a/libgo/go/os/signal/signal_unix.go b/libgo/go/os/signal/signal_unix.go
index 8ed0cde..532c0b5 100644
--- a/libgo/go/os/signal/signal_unix.go
+++ b/libgo/go/os/signal/signal_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package signal
 
@@ -26,7 +26,8 @@
 
 func init() {
 	signal_enable(0) // first call - initialize
-	go loop()
+
+	watchSignalLoop = loop
 }
 
 const (
diff --git a/libgo/go/os/stat_nacljs.go b/libgo/go/os/stat_js.go
similarity index 97%
rename from libgo/go/os/stat_nacljs.go
rename to libgo/go/os/stat_js.go
index f14add8..8d20ccd 100644
--- a/libgo/go/os/stat_nacljs.go
+++ b/libgo/go/os/stat_js.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build js,wasm nacl
+// +build js,wasm
 
 package os
 
diff --git a/libgo/go/os/stat_unix.go b/libgo/go/os/stat_unix.go
index 2bdbc4e..d489ad1 100644
--- a/libgo/go/os/stat_unix.go
+++ b/libgo/go/os/stat_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package os
 
diff --git a/libgo/go/os/sys_bsd.go b/libgo/go/os/sys_bsd.go
index d820be2..b1698f5 100644
--- a/libgo/go/os/sys_bsd.go
+++ b/libgo/go/os/sys_bsd.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin dragonfly freebsd js,wasm nacl netbsd openbsd
+// +build darwin dragonfly freebsd js,wasm netbsd openbsd
 
 package os
 
diff --git a/libgo/go/os/sys_nacl.go b/libgo/go/os/sys_nacl.go
deleted file mode 100644
index 07907c8..0000000
--- a/libgo/go/os/sys_nacl.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package os
-
-// supportsCloseOnExec reports whether the platform supports the
-// O_CLOEXEC flag.
-const supportsCloseOnExec = false
diff --git a/libgo/go/os/timeout_test.go b/libgo/go/os/timeout_test.go
index 5d7ea7e..0fe03fa 100644
--- a/libgo/go/os/timeout_test.go
+++ b/libgo/go/os/timeout_test.go
@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !nacl
 // +build !js
 // +build !plan9
 // +build !windows
diff --git a/libgo/go/os/user/cgo_lookup_unix.go b/libgo/go/os/user/cgo_lookup_unix.go
index 5872d11..eb6ab50 100644
--- a/libgo/go/os/user/cgo_lookup_unix.go
+++ b/libgo/go/os/user/cgo_lookup_unix.go
@@ -118,10 +118,6 @@
 	return u
 }
 
-func currentGroup() (*Group, error) {
-	return lookupUnixGid(syscall.Getgid())
-}
-
 func lookupGroup(groupname string) (*Group, error) {
 	var grp syscall.Group
 	var result *syscall.Group
diff --git a/libgo/go/os/user/lookup_stubs.go b/libgo/go/os/user/lookup_stubs.go
index d3acbdd..178d814 100644
--- a/libgo/go/os/user/lookup_stubs.go
+++ b/libgo/go/os/user/lookup_stubs.go
@@ -35,15 +35,8 @@
 		Name:     "", // ignored
 		HomeDir:  homeDir,
 	}
-	// On NaCL and Android, return a dummy user instead of failing.
+	// On Android, return a dummy user instead of failing.
 	switch runtime.GOOS {
-	case "nacl":
-		if u.Uid == "" {
-			u.Uid = "1"
-		}
-		if u.Username == "" {
-			u.Username = "nacl"
-		}
 	case "android":
 		if u.Uid == "" {
 			u.Uid = "1"
@@ -72,7 +65,7 @@
 
 func listGroups(*User) ([]string, error) {
 	if runtime.GOOS == "android" || runtime.GOOS == "aix" {
-		return nil, errors.New(fmt.Sprintf("user: GroupIds not implemented on %s", runtime.GOOS))
+		return nil, fmt.Errorf("user: GroupIds not implemented on %s", runtime.GOOS)
 	}
 	return nil, errors.New("user: GroupIds requires cgo")
 }
diff --git a/libgo/go/os/user/lookup_unix.go b/libgo/go/os/user/lookup_unix.go
index ba914f6..0f5e82d 100644
--- a/libgo/go/os/user/lookup_unix.go
+++ b/libgo/go/os/user/lookup_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm !android,linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm !android,linux netbsd openbsd solaris
 // +build !cgo osusergo
 
 package user
diff --git a/libgo/go/os/user/lookup_unix_test.go b/libgo/go/os/user/lookup_unix_test.go
index 65fe065..72d3b47 100644
--- a/libgo/go/os/user/lookup_unix_test.go
+++ b/libgo/go/os/user/lookup_unix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd !android,linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd !android,linux netbsd openbsd solaris
 // +build !cgo
 
 package user
diff --git a/libgo/go/os/user/lookup_windows.go b/libgo/go/os/user/lookup_windows.go
index 7499f6a..faaddd2 100644
--- a/libgo/go/os/user/lookup_windows.go
+++ b/libgo/go/os/user/lookup_windows.go
@@ -44,11 +44,7 @@
 	}
 	defer syscall.NetApiBufferFree(p)
 	i := (*syscall.UserInfo10)(unsafe.Pointer(p))
-	if i.FullName == nil {
-		return "", nil
-	}
-	name := syscall.UTF16ToString((*[1024]uint16)(unsafe.Pointer(i.FullName))[:])
-	return name, nil
+	return windows.UTF16PtrToString(i.FullName, 1024), nil
 }
 
 func lookupFullName(domain, username, domainAndUser string) (string, error) {
@@ -165,14 +161,13 @@
 	if entriesRead == 0 {
 		return nil, fmt.Errorf("listGroupsForUsernameAndDomain: NetUserGetLocalGroups() returned an empty list for domain: %s, username: %s", domain, username)
 	}
-	entries := (*[1024]windows.LocalGroupUserInfo0)(unsafe.Pointer(p0))[:entriesRead]
+	entries := (*[1024]windows.LocalGroupUserInfo0)(unsafe.Pointer(p0))[:entriesRead:entriesRead]
 	var sids []string
 	for _, entry := range entries {
 		if entry.Name == nil {
 			continue
 		}
-		name := syscall.UTF16ToString((*[1024]uint16)(unsafe.Pointer(entry.Name))[:])
-		sid, err := lookupGroupName(name)
+		sid, err := lookupGroupName(windows.UTF16PtrToString(entry.Name, 1024))
 		if err != nil {
 			return nil, err
 		}
diff --git a/libgo/go/os/wait_unimp.go b/libgo/go/os/wait_unimp.go
index 2551f21..cb875ab 100644
--- a/libgo/go/os/wait_unimp.go
+++ b/libgo/go/os/wait_unimp.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly hurd js,wasm nacl netbsd openbsd solaris
+// +build aix darwin dragonfly hurd js,wasm netbsd openbsd solaris
 
 package os
 
diff --git a/libgo/go/path/example_test.go b/libgo/go/path/example_test.go
index 77fbfa9..3077729 100644
--- a/libgo/go/path/example_test.go
+++ b/libgo/go/path/example_test.go
@@ -104,11 +104,15 @@
 }
 
 func ExampleSplit() {
-	fmt.Println(path.Split("static/myfile.css"))
-	fmt.Println(path.Split("myfile.css"))
-	fmt.Println(path.Split(""))
+	split := func(s string) {
+		dir, file := path.Split(s)
+		fmt.Printf("path.Split(%q) = dir: %q, file: %q\n", s, dir, file)
+	}
+	split("static/myfile.css")
+	split("myfile.css")
+	split("")
 	// Output:
-	// static/ myfile.css
-	//  myfile.css
-	//
+	// path.Split("static/myfile.css") = dir: "static/", file: "myfile.css"
+	// path.Split("myfile.css") = dir: "", file: "myfile.css"
+	// path.Split("") = dir: "", file: ""
 }
diff --git a/libgo/go/path/filepath/path.go b/libgo/go/path/filepath/path.go
index aba1717..26f1833 100644
--- a/libgo/go/path/filepath/path.go
+++ b/libgo/go/path/filepath/path.go
@@ -201,11 +201,13 @@
 	return path[:i+1], path[i+1:]
 }
 
-// Join joins any number of path elements into a single path, adding
-// a Separator if necessary. Join calls Clean on the result; in particular,
-// all empty strings are ignored.
-// On Windows, the result is a UNC path if and only if the first path
-// element is a UNC path.
+// Join joins any number of path elements into a single path,
+// separating them with an OS specific Separator. Empty elements
+// are ignored. The result is Cleaned. However, if the argument
+// list is empty or all its elements are empty, Join returns
+// an empty string.
+// On Windows, the result will only be a UNC path if the first
+// non-empty element is a UNC path.
 func Join(elem ...string) string {
 	return join(elem)
 }
diff --git a/libgo/go/path/filepath/path_unix.go b/libgo/go/path/filepath/path_unix.go
index fa0e40d..57341ed 100644
--- a/libgo/go/path/filepath/path_unix.go
+++ b/libgo/go/path/filepath/path_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package filepath
 
diff --git a/libgo/go/path/path.go b/libgo/go/path/path.go
index 5c90511..c513114 100644
--- a/libgo/go/path/path.go
+++ b/libgo/go/path/path.go
@@ -149,9 +149,11 @@
 	return path[:i+1], path[i+1:]
 }
 
-// Join joins any number of path elements into a single path, adding a
-// separating slash if necessary. The result is Cleaned; in particular,
-// all empty strings are ignored.
+// Join joins any number of path elements into a single path,
+// separating them with slashes. Empty elements are ignored.
+// The result is Cleaned. However, if the argument list is
+// empty or all its elements are empty, Join returns
+// an empty string.
 func Join(elem ...string) string {
 	for i, e := range elem {
 		if e != "" {
diff --git a/libgo/go/plugin/plugin.go b/libgo/go/plugin/plugin.go
index 5506e95..4a524bf 100644
--- a/libgo/go/plugin/plugin.go
+++ b/libgo/go/plugin/plugin.go
@@ -13,7 +13,7 @@
 // already part of the program are called. The main function is not run.
 // A plugin is only initialized once, and cannot be closed.
 //
-// Currently plugins are only supported on Linux and macOS.
+// Currently plugins are only supported on Linux, FreeBSD, and macOS.
 // Please report any issues.
 package plugin
 
diff --git a/libgo/go/plugin/plugin_dlopen.go b/libgo/go/plugin/plugin_dlopen.go
index 3abfb60..8342267 100644
--- a/libgo/go/plugin/plugin_dlopen.go
+++ b/libgo/go/plugin/plugin_dlopen.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build linux,cgo darwin,cgo hurd,cgo
+// +build linux,cgo darwin,cgo freebsd,cgo hurd,cgo
 
 package plugin
 
diff --git a/libgo/go/plugin/plugin_stubs.go b/libgo/go/plugin/plugin_stubs.go
index 412d103..0f9adb7 100644
--- a/libgo/go/plugin/plugin_stubs.go
+++ b/libgo/go/plugin/plugin_stubs.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !hurd !linux,!darwin !cgo
+// +build !hurd,!linux,!freebsd,!darwin !cgo
 
 package plugin
 
diff --git a/libgo/go/plugin/plugin_test.go b/libgo/go/plugin/plugin_test.go
index b334c5c..30b79ed 100644
--- a/libgo/go/plugin/plugin_test.go
+++ b/libgo/go/plugin/plugin_test.go
@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !nacl
 // +build !linux linux,!arm64
 
 package plugin_test
diff --git a/libgo/go/reflect/all_test.go b/libgo/go/reflect/all_test.go
index 6e06485..c9ed0a9 100644
--- a/libgo/go/reflect/all_test.go
+++ b/libgo/go/reflect/all_test.go
@@ -787,6 +787,7 @@
 
 var loop1, loop2 Loop
 var loopy1, loopy2 Loopy
+var cycleMap1, cycleMap2, cycleMap3 map[string]interface{}
 
 func init() {
 	loop1 = &loop2
@@ -794,6 +795,13 @@
 
 	loopy1 = &loopy2
 	loopy2 = &loopy1
+
+	cycleMap1 = map[string]interface{}{}
+	cycleMap1["cycle"] = cycleMap1
+	cycleMap2 = map[string]interface{}{}
+	cycleMap2["cycle"] = cycleMap2
+	cycleMap3 = map[string]interface{}{}
+	cycleMap3["different"] = cycleMap3
 }
 
 var deepEqualTests = []DeepEqualTest{
@@ -860,6 +868,8 @@
 	{&loop1, &loop2, true},
 	{&loopy1, &loopy1, true},
 	{&loopy1, &loopy2, true},
+	{&cycleMap1, &cycleMap2, true},
+	{&cycleMap1, &cycleMap3, false},
 }
 
 func TestDeepEqual(t *testing.T) {
@@ -868,7 +878,7 @@
 			test.b = test.a
 		}
 		if r := DeepEqual(test.a, test.b); r != test.eq {
-			t.Errorf("DeepEqual(%v, %v) = %v, want %v", test.a, test.b, r, test.eq)
+			t.Errorf("DeepEqual(%#v, %#v) = %v, want %v", test.a, test.b, r, test.eq)
 		}
 	}
 }
@@ -3634,6 +3644,13 @@
 type MyFunc func()
 type MyByte byte
 
+type IntChan chan int
+type IntChanRecv <-chan int
+type IntChanSend chan<- int
+type BytesChan chan []byte
+type BytesChanRecv <-chan []byte
+type BytesChanSend chan<- []byte
+
 var convertTests = []struct {
 	in  Value
 	out Value
@@ -3995,10 +4012,6 @@
 	{V((***byte)(nil)), V((***byte)(nil))},
 	{V((***int32)(nil)), V((***int32)(nil))},
 	{V((***int64)(nil)), V((***int64)(nil))},
-	{V((chan int)(nil)), V((<-chan int)(nil))},
-	{V((chan int)(nil)), V((chan<- int)(nil))},
-	{V((chan string)(nil)), V((<-chan string)(nil))},
-	{V((chan string)(nil)), V((chan<- string)(nil))},
 	{V((chan byte)(nil)), V((chan byte)(nil))},
 	{V((chan MyByte)(nil)), V((chan MyByte)(nil))},
 	{V((map[int]bool)(nil)), V((map[int]bool)(nil))},
@@ -4010,6 +4023,40 @@
 	{V(new(io.Reader)), V(new(io.Reader))},
 	{V(new(io.Writer)), V(new(io.Writer))},
 
+	// channels
+	{V(IntChan(nil)), V((chan<- int)(nil))},
+	{V(IntChan(nil)), V((<-chan int)(nil))},
+	{V((chan int)(nil)), V(IntChanRecv(nil))},
+	{V((chan int)(nil)), V(IntChanSend(nil))},
+	{V(IntChanRecv(nil)), V((<-chan int)(nil))},
+	{V((<-chan int)(nil)), V(IntChanRecv(nil))},
+	{V(IntChanSend(nil)), V((chan<- int)(nil))},
+	{V((chan<- int)(nil)), V(IntChanSend(nil))},
+	{V(IntChan(nil)), V((chan int)(nil))},
+	{V((chan int)(nil)), V(IntChan(nil))},
+	{V((chan int)(nil)), V((<-chan int)(nil))},
+	{V((chan int)(nil)), V((chan<- int)(nil))},
+	{V(BytesChan(nil)), V((chan<- []byte)(nil))},
+	{V(BytesChan(nil)), V((<-chan []byte)(nil))},
+	{V((chan []byte)(nil)), V(BytesChanRecv(nil))},
+	{V((chan []byte)(nil)), V(BytesChanSend(nil))},
+	{V(BytesChanRecv(nil)), V((<-chan []byte)(nil))},
+	{V((<-chan []byte)(nil)), V(BytesChanRecv(nil))},
+	{V(BytesChanSend(nil)), V((chan<- []byte)(nil))},
+	{V((chan<- []byte)(nil)), V(BytesChanSend(nil))},
+	{V(BytesChan(nil)), V((chan []byte)(nil))},
+	{V((chan []byte)(nil)), V(BytesChan(nil))},
+	{V((chan []byte)(nil)), V((<-chan []byte)(nil))},
+	{V((chan []byte)(nil)), V((chan<- []byte)(nil))},
+
+	// cannot convert other instances (channels)
+	{V(IntChan(nil)), V(IntChan(nil))},
+	{V(IntChanRecv(nil)), V(IntChanRecv(nil))},
+	{V(IntChanSend(nil)), V(IntChanSend(nil))},
+	{V(BytesChan(nil)), V(BytesChan(nil))},
+	{V(BytesChanRecv(nil)), V(BytesChanRecv(nil))},
+	{V(BytesChanSend(nil)), V(BytesChanSend(nil))},
+
 	// interfaces
 	{V(int(1)), EmptyInterfaceV(int(1))},
 	{V(string("hello")), EmptyInterfaceV(string("hello"))},
@@ -4734,17 +4781,14 @@
 			mustPanic: true,
 		},
 		{
-			field:     StructField{Name: "s2", Type: TypeOf(int(0)), PkgPath: "other/pkg"},
-			mustPanic: true,
+			field: StructField{Name: "s2", Type: TypeOf(int(0)), PkgPath: "other/pkg"},
 		},
 		{
-			field:     StructField{Name: "s2", Type: TypeOf(int(0)), PkgPath: "other/pkg"},
-			mustPanic: true,
+			field: StructField{Name: "s2", Type: TypeOf(int(0)), PkgPath: "other/pkg"},
 		},
 		{
-			field:     StructField{Name: "S", Type: TypeOf(S1{})},
-			mustPanic: false,
-			exported:  true,
+			field:    StructField{Name: "S", Type: TypeOf(S1{})},
+			exported: true,
 		},
 		{
 			field:    StructField{Name: "S", Type: TypeOf((*S1)(nil))},
@@ -4775,20 +4819,16 @@
 			mustPanic: true,
 		},
 		{
-			field:     StructField{Name: "s", Type: TypeOf(S1{}), PkgPath: "other/pkg"},
-			mustPanic: true, // TODO(sbinet): creating a name with a package path
+			field: StructField{Name: "s", Type: TypeOf(S1{}), PkgPath: "other/pkg"},
 		},
 		{
-			field:     StructField{Name: "s", Type: TypeOf((*S1)(nil)), PkgPath: "other/pkg"},
-			mustPanic: true, // TODO(sbinet): creating a name with a package path
+			field: StructField{Name: "s", Type: TypeOf((*S1)(nil)), PkgPath: "other/pkg"},
 		},
 		{
-			field:     StructField{Name: "s", Type: TypeOf(s2{}), PkgPath: "other/pkg"},
-			mustPanic: true, // TODO(sbinet): creating a name with a package path
+			field: StructField{Name: "s", Type: TypeOf(s2{}), PkgPath: "other/pkg"},
 		},
 		{
-			field:     StructField{Name: "s", Type: TypeOf((*s2)(nil)), PkgPath: "other/pkg"},
-			mustPanic: true, // TODO(sbinet): creating a name with a package path
+			field: StructField{Name: "s", Type: TypeOf((*s2)(nil)), PkgPath: "other/pkg"},
 		},
 		{
 			field:     StructField{Name: "", Type: TypeOf(ΦType{})},
@@ -6120,9 +6160,6 @@
 
 func init() {
 	var argAlign uintptr = PtrSize
-	if runtime.GOARCH == "amd64p32" {
-		argAlign = 2 * PtrSize
-	}
 	roundup := func(x uintptr, a uintptr) uintptr {
 		return (x + a - 1) / a * a
 	}
@@ -6435,7 +6472,7 @@
 		join(hdr, rep(8, lit(0, 1)), rep(8, lit(1)), lit(1)))
 	verifyMapBucket(t, Tint64, Tptr,
 		map[int64]Xptr(nil),
-		join(hdr, rep(8, rep(8/PtrSize, lit(0))), rep(8, lit(1)), naclpad(), lit(1)))
+		join(hdr, rep(8, rep(8/PtrSize, lit(0))), rep(8, lit(1)), lit(1)))
 	verifyMapBucket(t,
 		Tscalar, Tscalar,
 		map[Xscalar]Xscalar(nil),
@@ -6462,13 +6499,6 @@
 		join(hdr, rep(8, lit(1)), rep(8, lit(1)), lit(1)))
 }
 
-func naclpad() []byte {
-	if runtime.GOARCH == "amd64p32" {
-		return lit(0)
-	}
-	return nil
-}
-
 func rep(n int, b []byte) []byte { return bytes.Repeat(b, n) }
 func join(b ...[]byte) []byte    { return bytes.Join(b, nil) }
 func lit(x ...byte) []byte       { return x }
diff --git a/libgo/go/reflect/deepequal.go b/libgo/go/reflect/deepequal.go
index 5b6694d..f2d4616 100644
--- a/libgo/go/reflect/deepequal.go
+++ b/libgo/go/reflect/deepequal.go
@@ -33,18 +33,20 @@
 
 	// We want to avoid putting more in the visited map than we need to.
 	// For any possible reference cycle that might be encountered,
-	// hard(t) needs to return true for at least one of the types in the cycle.
-	hard := func(k Kind) bool {
-		switch k {
+	// hard(v1, v2) needs to return true for at least one of the types in the cycle,
+	// and it's safe and valid to get Value's internal pointer.
+	hard := func(v1, v2 Value) bool {
+		switch v1.Kind() {
 		case Map, Slice, Ptr, Interface:
-			return true
+			// Nil pointers cannot be cyclic. Avoid putting them in the visited map.
+			return !v1.IsNil() && !v2.IsNil()
 		}
 		return false
 	}
 
-	if v1.CanAddr() && v2.CanAddr() && hard(v1.Kind()) {
-		addr1 := unsafe.Pointer(v1.UnsafeAddr())
-		addr2 := unsafe.Pointer(v2.UnsafeAddr())
+	if hard(v1, v2) {
+		addr1 := v1.ptr
+		addr2 := v2.ptr
 		if uintptr(addr1) > uintptr(addr2) {
 			// Canonicalize order to reduce number of entries in visited.
 			// Assumes non-moving garbage collector.
diff --git a/libgo/go/reflect/type.go b/libgo/go/reflect/type.go
index 41ed383..a350674 100644
--- a/libgo/go/reflect/type.go
+++ b/libgo/go/reflect/type.go
@@ -633,13 +633,17 @@
 	return t.uncommonType.PkgPath()
 }
 
+func (t *rtype) hasName() bool {
+	return t.uncommonType != nil && t.uncommonType.name != nil
+}
+
 func (t *rtype) Name() string {
 	return t.uncommonType.Name()
 }
 
 func (t *rtype) ChanDir() ChanDir {
 	if t.Kind() != Chan {
-		panic("reflect: ChanDir of non-chan type")
+		panic("reflect: ChanDir of non-chan type " + t.String())
 	}
 	tt := (*chanType)(unsafe.Pointer(t))
 	return ChanDir(tt.dir)
@@ -647,7 +651,7 @@
 
 func (t *rtype) IsVariadic() bool {
 	if t.Kind() != Func {
-		panic("reflect: IsVariadic of non-func type")
+		panic("reflect: IsVariadic of non-func type " + t.String())
 	}
 	tt := (*funcType)(unsafe.Pointer(t))
 	return tt.dotdotdot
@@ -671,12 +675,12 @@
 		tt := (*sliceType)(unsafe.Pointer(t))
 		return toType(tt.elem)
 	}
-	panic("reflect: Elem of invalid type")
+	panic("reflect: Elem of invalid type " + t.String())
 }
 
 func (t *rtype) Field(i int) StructField {
 	if t.Kind() != Struct {
-		panic("reflect: Field of non-struct type")
+		panic("reflect: Field of non-struct type " + t.String())
 	}
 	tt := (*structType)(unsafe.Pointer(t))
 	return tt.Field(i)
@@ -684,7 +688,7 @@
 
 func (t *rtype) FieldByIndex(index []int) StructField {
 	if t.Kind() != Struct {
-		panic("reflect: FieldByIndex of non-struct type")
+		panic("reflect: FieldByIndex of non-struct type " + t.String())
 	}
 	tt := (*structType)(unsafe.Pointer(t))
 	return tt.FieldByIndex(index)
@@ -692,7 +696,7 @@
 
 func (t *rtype) FieldByName(name string) (StructField, bool) {
 	if t.Kind() != Struct {
-		panic("reflect: FieldByName of non-struct type")
+		panic("reflect: FieldByName of non-struct type " + t.String())
 	}
 	tt := (*structType)(unsafe.Pointer(t))
 	return tt.FieldByName(name)
@@ -700,7 +704,7 @@
 
 func (t *rtype) FieldByNameFunc(match func(string) bool) (StructField, bool) {
 	if t.Kind() != Struct {
-		panic("reflect: FieldByNameFunc of non-struct type")
+		panic("reflect: FieldByNameFunc of non-struct type " + t.String())
 	}
 	tt := (*structType)(unsafe.Pointer(t))
 	return tt.FieldByNameFunc(match)
@@ -708,7 +712,7 @@
 
 func (t *rtype) In(i int) Type {
 	if t.Kind() != Func {
-		panic("reflect: In of non-func type")
+		panic("reflect: In of non-func type " + t.String())
 	}
 	tt := (*funcType)(unsafe.Pointer(t))
 	return toType(tt.in[i])
@@ -716,7 +720,7 @@
 
 func (t *rtype) Key() Type {
 	if t.Kind() != Map {
-		panic("reflect: Key of non-map type")
+		panic("reflect: Key of non-map type " + t.String())
 	}
 	tt := (*mapType)(unsafe.Pointer(t))
 	return toType(tt.key)
@@ -724,7 +728,7 @@
 
 func (t *rtype) Len() int {
 	if t.Kind() != Array {
-		panic("reflect: Len of non-array type")
+		panic("reflect: Len of non-array type " + t.String())
 	}
 	tt := (*arrayType)(unsafe.Pointer(t))
 	return int(tt.len)
@@ -732,7 +736,7 @@
 
 func (t *rtype) NumField() int {
 	if t.Kind() != Struct {
-		panic("reflect: NumField of non-struct type")
+		panic("reflect: NumField of non-struct type " + t.String())
 	}
 	tt := (*structType)(unsafe.Pointer(t))
 	return len(tt.fields)
@@ -740,7 +744,7 @@
 
 func (t *rtype) NumIn() int {
 	if t.Kind() != Func {
-		panic("reflect: NumIn of non-func type")
+		panic("reflect: NumIn of non-func type " + t.String())
 	}
 	tt := (*funcType)(unsafe.Pointer(t))
 	return len(tt.in)
@@ -748,7 +752,7 @@
 
 func (t *rtype) NumOut() int {
 	if t.Kind() != Func {
-		panic("reflect: NumOut of non-func type")
+		panic("reflect: NumOut of non-func type " + t.String())
 	}
 	tt := (*funcType)(unsafe.Pointer(t))
 	return len(tt.out)
@@ -756,7 +760,7 @@
 
 func (t *rtype) Out(i int) Type {
 	if t.Kind() != Func {
-		panic("reflect: Out of non-func type")
+		panic("reflect: Out of non-func type " + t.String())
 	}
 	tt := (*funcType)(unsafe.Pointer(t))
 	return toType(tt.out[i])
@@ -1250,6 +1254,18 @@
 	return false
 }
 
+// specialChannelAssignability reports whether a value x of channel type V
+// can be directly assigned (using memmove) to another channel type T.
+// https://golang.org/doc/go_spec.html#Assignability
+// T and V must be both of Chan kind.
+func specialChannelAssignability(T, V *rtype) bool {
+	// Special case:
+	// x is a bidirectional channel value, T is a channel type,
+	// x's type V and T have identical element types,
+	// and at least one of V or T is not a defined type.
+	return V.ChanDir() == BothDir && (T.Name() == "" || V.Name() == "") && haveIdenticalType(T.Elem(), V.Elem(), true)
+}
+
 // directlyAssignable reports whether a value x of type V can be directly
 // assigned (using memmove) to a value of type T.
 // https://golang.org/doc/go_spec.html#Assignability
@@ -1263,11 +1279,15 @@
 
 	// Otherwise at least one of T and V must not be defined
 	// and they must have the same kind.
-	if T.Name() != "" && V.Name() != "" || T.Kind() != V.Kind() {
+	if T.hasName() && V.hasName() || T.Kind() != V.Kind() {
 		return false
 	}
 
-	// x's type T and V must  have identical underlying types.
+	if T.Kind() == Chan && specialChannelAssignability(T, V) {
+		return true
+	}
+
+	// x's type T and V must have identical underlying types.
 	return haveIdenticalUnderlyingType(T, V, true)
 }
 
@@ -1305,14 +1325,6 @@
 		return T.Len() == V.Len() && haveIdenticalType(T.Elem(), V.Elem(), cmpTags)
 
 	case Chan:
-		// Special case:
-		// x is a bidirectional channel value, T is a channel type,
-		// and x's type V and T have identical element types.
-		if V.ChanDir() == BothDir && haveIdenticalType(T.Elem(), V.Elem(), cmpTags) {
-			return true
-		}
-
-		// Otherwise continue test for identical underlying type.
 		return V.ChanDir() == T.ChanDir() && haveIdenticalType(T.Elem(), V.Elem(), cmpTags)
 
 	case Func:
@@ -1800,36 +1812,14 @@
 		base := psize / ptrSize
 
 		if ktyp.ptrdata != 0 {
-			if ktyp.kind&kindGCProg != 0 {
-				panic("reflect: unexpected GC program in MapOf")
-			}
-			kmask := (*[16]byte)(unsafe.Pointer(ktyp.gcdata))
-			for i := uintptr(0); i < ktyp.ptrdata/ptrSize; i++ {
-				if (kmask[i/8]>>(i%8))&1 != 0 {
-					for j := uintptr(0); j < bucketSize; j++ {
-						word := base + j*ktyp.size/ptrSize + i
-						mask[word/8] |= 1 << (word % 8)
-					}
-				}
-			}
+			emitGCMask(mask, base, ktyp, bucketSize)
 		}
 		psize += bucketSize * ktyp.size
 		psize = align(psize, uintptr(etyp.fieldAlign))
 		base = psize / ptrSize
 
 		if etyp.ptrdata != 0 {
-			if etyp.kind&kindGCProg != 0 {
-				panic("reflect: unexpected GC program in MapOf")
-			}
-			emask := (*[16]byte)(unsafe.Pointer(etyp.gcdata))
-			for i := uintptr(0); i < etyp.ptrdata/ptrSize; i++ {
-				if (emask[i/8]>>(i%8))&1 != 0 {
-					for j := uintptr(0); j < bucketSize; j++ {
-						word := base + j*etyp.size/ptrSize + i
-						mask[word/8] |= 1 << (word % 8)
-					}
-				}
-			}
+			emitGCMask(mask, base, etyp, bucketSize)
 		}
 
 		word := ovoff / ptrSize
@@ -1856,6 +1846,55 @@
 	return b
 }
 
+func (t *rtype) gcSlice(begin, end uintptr) []byte {
+	return (*[1 << 30]byte)(unsafe.Pointer(t.gcdata))[begin:end:end]
+}
+
+// emitGCMask writes the GC mask for [n]typ into out, starting at bit
+// offset base.
+func emitGCMask(out []byte, base uintptr, typ *rtype, n uintptr) {
+	if typ.kind&kindGCProg != 0 {
+		panic("reflect: unexpected GC program")
+	}
+	ptrs := typ.ptrdata / ptrSize
+	words := typ.size / ptrSize
+	mask := typ.gcSlice(0, (ptrs+7)/8)
+	for j := uintptr(0); j < ptrs; j++ {
+		if (mask[j/8]>>(j%8))&1 != 0 {
+			for i := uintptr(0); i < n; i++ {
+				k := base + i*words + j
+				out[k/8] |= 1 << (k % 8)
+			}
+		}
+	}
+}
+
+// appendGCProg appends the GC program for the first ptrdata bytes of
+// typ to dst and returns the extended slice.
+func appendGCProg(dst []byte, typ *rtype) []byte {
+	if typ.kind&kindGCProg != 0 {
+		// Element has GC program; emit one element.
+		n := uintptr(*(*uint32)(unsafe.Pointer(typ.gcdata)))
+		prog := typ.gcSlice(4, 4+n-1)
+		return append(dst, prog...)
+	}
+
+	// Element is small with pointer mask; use as literal bits.
+	ptrs := typ.ptrdata / ptrSize
+	mask := typ.gcSlice(0, (ptrs+7)/8)
+
+	// Emit 120-bit chunks of full bytes (max is 127 but we avoid using partial bytes).
+	for ; ptrs > 120; ptrs -= 120 {
+		dst = append(dst, 120)
+		dst = append(dst, mask[:15]...)
+		mask = mask[15:]
+	}
+
+	dst = append(dst, byte(ptrs))
+	dst = append(dst, mask...)
+	return dst
+}
+
 // SliceOf returns the slice type with element type t.
 // For example, if t represents int, SliceOf(t) represents []int.
 func SliceOf(t Type) Type {
@@ -2146,25 +2185,7 @@
 				off = ft.offset()
 			}
 
-			elemGC := (*[1 << 30]byte)(unsafe.Pointer(ft.typ.gcdata))[:]
-			elemPtrs := ft.typ.ptrdata / ptrSize
-			if ft.typ.kind&kindGCProg == 0 {
-				// Element is small with pointer mask; use as literal bits.
-				mask := elemGC
-				// Emit 120-bit chunks of full bytes (max is 127 but we avoid using partial bytes).
-				var n uintptr
-				for n = elemPtrs; n > 120; n -= 120 {
-					prog = append(prog, 120)
-					prog = append(prog, mask[:15]...)
-					mask = mask[15:]
-				}
-				prog = append(prog, byte(n))
-				prog = append(prog, mask[:(n+7)/8]...)
-			} else {
-				// Element has GC program; emit one element.
-				elemProg := elemGC[4 : 4+*(*uint32)(unsafe.Pointer(&elemGC[0]))-1]
-				prog = append(prog, elemProg...)
-			}
+			prog = appendGCProg(prog, ft.typ)
 			off += ft.typ.ptrdata
 		}
 		prog = append(prog, 0)
@@ -2209,15 +2230,18 @@
 }
 
 func runtimeStructField(field StructField) structField {
-	if field.PkgPath != "" {
-		panic("reflect.StructOf: StructOf does not allow unexported fields")
+	if field.Anonymous && field.PkgPath != "" {
+		panic("reflect.StructOf: field \"" + field.Name + "\" is anonymous but has PkgPath set")
 	}
 
-	// Best-effort check for misuse.
-	// Since PkgPath is empty, not much harm done if Unicode lowercase slips through.
-	c := field.Name[0]
-	if 'a' <= c && c <= 'z' || c == '_' {
-		panic("reflect.StructOf: field \"" + field.Name + "\" is unexported but missing PkgPath")
+	exported := field.PkgPath == ""
+	if exported {
+		// Best-effort check for misuse.
+		// Since this field will be treated as exported, not much harm done if Unicode lowercase slips through.
+		c := field.Name[0]
+		if 'a' <= c && c <= 'z' || c == '_' {
+			panic("reflect.StructOf: field \"" + field.Name + "\" is unexported but missing PkgPath")
+		}
 	}
 
 	offsetEmbed := uintptr(0)
@@ -2234,9 +2258,14 @@
 		tag = &st
 	}
 
+	var pkgPath *string
+	if field.PkgPath != "" {
+		s := field.PkgPath
+		pkgPath = &s
+	}
 	return structField{
 		name:        name,
-		pkgPath:     nil,
+		pkgPath:     pkgPath,
 		typ:         field.Type.common(),
 		tag:         tag,
 		offsetEmbed: offsetEmbed,
@@ -2346,42 +2375,16 @@
 		// Create direct pointer mask by turning each 1 bit in elem
 		// into count 1 bits in larger mask.
 		mask := make([]byte, (array.ptrdata/ptrSize+7)/8)
-		elemMask := (*[1 << 30]byte)(unsafe.Pointer(typ.gcdata))[:]
-		elemWords := typ.size / ptrSize
-		for j := uintptr(0); j < typ.ptrdata/ptrSize; j++ {
-			if (elemMask[j/8]>>(j%8))&1 != 0 {
-				for i := uintptr(0); i < array.len; i++ {
-					k := i*elemWords + j
-					mask[k/8] |= 1 << (k % 8)
-				}
-			}
-		}
+		emitGCMask(mask, 0, typ, array.len)
 		array.gcdata = &mask[0]
 
 	default:
 		// Create program that emits one element
 		// and then repeats to make the array.
 		prog := []byte{0, 0, 0, 0} // will be length of prog
-		elemGC := (*[1 << 30]byte)(unsafe.Pointer(typ.gcdata))[:]
-		elemPtrs := typ.ptrdata / ptrSize
-		if typ.kind&kindGCProg == 0 {
-			// Element is small with pointer mask; use as literal bits.
-			mask := elemGC
-			// Emit 120-bit chunks of full bytes (max is 127 but we avoid using partial bytes).
-			var n uintptr
-			for n = elemPtrs; n > 120; n -= 120 {
-				prog = append(prog, 120)
-				prog = append(prog, mask[:15]...)
-				mask = mask[15:]
-			}
-			prog = append(prog, byte(n))
-			prog = append(prog, mask[:(n+7)/8]...)
-		} else {
-			// Element has GC program; emit one element.
-			elemProg := elemGC[4 : 4+*(*uint32)(unsafe.Pointer(&elemGC[0]))-1]
-			prog = append(prog, elemProg...)
-		}
+		prog = appendGCProg(prog, typ)
 		// Pad from ptrdata to size.
+		elemPtrs := typ.ptrdata / ptrSize
 		elemWords := typ.size / ptrSize
 		if elemPtrs < elemWords {
 			// Emit literal 0 bit, then repeat as needed.
@@ -2462,7 +2465,6 @@
 	return t.kind&kindDirectIface == 0
 }
 
-// Layout matches runtime.gobitvector (well enough).
 type bitVector struct {
 	n    uint32 // number of bits
 	data []byte
diff --git a/libgo/go/reflect/value.go b/libgo/go/reflect/value.go
index 15a5024..147a9c4 100644
--- a/libgo/go/reflect/value.go
+++ b/libgo/go/reflect/value.go
@@ -884,7 +884,7 @@
 // IsValid reports whether v represents a value.
 // It returns false if v is the zero Value.
 // If IsValid returns false, all other methods except String panic.
-// Most functions and methods never return an invalid value.
+// Most functions and methods never return an invalid Value.
 // If one does, its documentation states the conditions explicitly.
 func (v Value) IsValid() bool {
 	return v.flag != 0
@@ -1225,6 +1225,11 @@
 	panic(&ValueError{"reflect.Value.OverflowUint", v.kind()})
 }
 
+//go:nocheckptr
+// This prevents inlining Value.Pointer when -d=checkptr is enabled,
+// which ensures cmd/compile can recognize unsafe.Pointer(v.Pointer())
+// and make an exception.
+
 // Pointer returns v's value as a uintptr.
 // It returns uintptr instead of unsafe.Pointer so that
 // code using reflect cannot obtain unsafe.Pointers
@@ -1722,6 +1727,11 @@
 	panic(&ValueError{"reflect.Value.Uint", v.kind()})
 }
 
+//go:nocheckptr
+// This prevents inlining Value.UnsafeAddr when -d=checkptr is enabled,
+// which ensures cmd/compile can recognize unsafe.Pointer(v.UnsafeAddr())
+// and make an exception.
+
 // UnsafeAddr returns a pointer to v's data.
 // It is for advanced clients that also import the "unsafe" package.
 // It panics if v is not addressable.
@@ -2274,6 +2284,11 @@
 				return cvtRunesString
 			}
 		}
+
+	case Chan:
+		if dst.Kind() == Chan && specialChannelAssignability(dst, src) {
+			return cvtDirect
+		}
 	}
 
 	// dst and src have same underlying type.
diff --git a/libgo/go/regexp/backtrack.go b/libgo/go/regexp/backtrack.go
index 9fb7d1e..41ae59b 100644
--- a/libgo/go/regexp/backtrack.go
+++ b/libgo/go/regexp/backtrack.go
@@ -247,7 +247,7 @@
 				b.cap[inst.Arg] = pos
 				continue
 			} else {
-				if 0 <= inst.Arg && inst.Arg < uint32(len(b.cap)) {
+				if inst.Arg < uint32(len(b.cap)) {
 					// Capture pos to register, but save old value.
 					b.push(re, pc, b.cap[inst.Arg], true) // come back when we're done.
 					b.cap[inst.Arg] = pos
diff --git a/libgo/go/regexp/example_test.go b/libgo/go/regexp/example_test.go
new file mode 100644
index 0000000..ea35a2e
--- /dev/null
+++ b/libgo/go/regexp/example_test.go
@@ -0,0 +1,420 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package regexp_test
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+)
+
+func Example() {
+	// Compile the expression once, usually at init time.
+	// Use raw strings to avoid having to quote the backslashes.
+	var validID = regexp.MustCompile(`^[a-z]+\[[0-9]+\]$`)
+
+	fmt.Println(validID.MatchString("adam[23]"))
+	fmt.Println(validID.MatchString("eve[7]"))
+	fmt.Println(validID.MatchString("Job[48]"))
+	fmt.Println(validID.MatchString("snakey"))
+	// Output:
+	// true
+	// true
+	// false
+	// false
+}
+
+func ExampleMatch() {
+	matched, err := regexp.Match(`foo.*`, []byte(`seafood`))
+	fmt.Println(matched, err)
+	matched, err = regexp.Match(`bar.*`, []byte(`seafood`))
+	fmt.Println(matched, err)
+	matched, err = regexp.Match(`a(b`, []byte(`seafood`))
+	fmt.Println(matched, err)
+
+	// Output:
+	// true <nil>
+	// false <nil>
+	// false error parsing regexp: missing closing ): `a(b`
+}
+
+func ExampleMatchString() {
+	matched, err := regexp.MatchString(`foo.*`, "seafood")
+	fmt.Println(matched, err)
+	matched, err = regexp.MatchString(`bar.*`, "seafood")
+	fmt.Println(matched, err)
+	matched, err = regexp.MatchString(`a(b`, "seafood")
+	fmt.Println(matched, err)
+	// Output:
+	// true <nil>
+	// false <nil>
+	// false error parsing regexp: missing closing ): `a(b`
+}
+
+func ExampleQuoteMeta() {
+	fmt.Println(regexp.QuoteMeta(`Escaping symbols like: .+*?()|[]{}^$`))
+	// Output:
+	// Escaping symbols like: \.\+\*\?\(\)\|\[\]\{\}\^\$
+}
+
+func ExampleRegexp_Find() {
+	re := regexp.MustCompile(`foo.?`)
+	fmt.Printf("%q\n", re.Find([]byte(`seafood fool`)))
+
+	// Output:
+	// "food"
+}
+
+func ExampleRegexp_FindAll() {
+	re := regexp.MustCompile(`foo.?`)
+	fmt.Printf("%q\n", re.FindAll([]byte(`seafood fool`), -1))
+
+	// Output:
+	// ["food" "fool"]
+}
+
+func ExampleRegexp_FindAllSubmatch() {
+	re := regexp.MustCompile(`foo(.?)`)
+	fmt.Printf("%q\n", re.FindAllSubmatch([]byte(`seafood fool`), -1))
+
+	// Output:
+	// [["food" "d"] ["fool" "l"]]
+}
+
+func ExampleRegexp_FindSubmatch() {
+	re := regexp.MustCompile(`foo(.?)`)
+	fmt.Printf("%q\n", re.FindSubmatch([]byte(`seafood fool`)))
+
+	// Output:
+	// ["food" "d"]
+}
+
+func ExampleRegexp_Match() {
+	re := regexp.MustCompile(`foo.?`)
+	fmt.Println(re.Match([]byte(`seafood fool`)))
+	fmt.Println(re.Match([]byte(`something else`)))
+
+	// Output:
+	// true
+	// false
+}
+
+func ExampleRegexp_FindString() {
+	re := regexp.MustCompile(`foo.?`)
+	fmt.Printf("%q\n", re.FindString("seafood fool"))
+	fmt.Printf("%q\n", re.FindString("meat"))
+	// Output:
+	// "food"
+	// ""
+}
+
+func ExampleRegexp_FindStringIndex() {
+	re := regexp.MustCompile(`ab?`)
+	fmt.Println(re.FindStringIndex("tablett"))
+	fmt.Println(re.FindStringIndex("foo") == nil)
+	// Output:
+	// [1 3]
+	// true
+}
+
+func ExampleRegexp_FindStringSubmatch() {
+	re := regexp.MustCompile(`a(x*)b(y|z)c`)
+	fmt.Printf("%q\n", re.FindStringSubmatch("-axxxbyc-"))
+	fmt.Printf("%q\n", re.FindStringSubmatch("-abzc-"))
+	// Output:
+	// ["axxxbyc" "xxx" "y"]
+	// ["abzc" "" "z"]
+}
+
+func ExampleRegexp_FindAllString() {
+	re := regexp.MustCompile(`a.`)
+	fmt.Println(re.FindAllString("paranormal", -1))
+	fmt.Println(re.FindAllString("paranormal", 2))
+	fmt.Println(re.FindAllString("graal", -1))
+	fmt.Println(re.FindAllString("none", -1))
+	// Output:
+	// [ar an al]
+	// [ar an]
+	// [aa]
+	// []
+}
+
+func ExampleRegexp_FindAllStringSubmatch() {
+	re := regexp.MustCompile(`a(x*)b`)
+	fmt.Printf("%q\n", re.FindAllStringSubmatch("-ab-", -1))
+	fmt.Printf("%q\n", re.FindAllStringSubmatch("-axxb-", -1))
+	fmt.Printf("%q\n", re.FindAllStringSubmatch("-ab-axb-", -1))
+	fmt.Printf("%q\n", re.FindAllStringSubmatch("-axxb-ab-", -1))
+	// Output:
+	// [["ab" ""]]
+	// [["axxb" "xx"]]
+	// [["ab" ""] ["axb" "x"]]
+	// [["axxb" "xx"] ["ab" ""]]
+}
+
+func ExampleRegexp_FindAllStringSubmatchIndex() {
+	re := regexp.MustCompile(`a(x*)b`)
+	// Indices:
+	//    01234567   012345678
+	//    -ab-axb-   -axxb-ab-
+	fmt.Println(re.FindAllStringSubmatchIndex("-ab-", -1))
+	fmt.Println(re.FindAllStringSubmatchIndex("-axxb-", -1))
+	fmt.Println(re.FindAllStringSubmatchIndex("-ab-axb-", -1))
+	fmt.Println(re.FindAllStringSubmatchIndex("-axxb-ab-", -1))
+	fmt.Println(re.FindAllStringSubmatchIndex("-foo-", -1))
+	// Output:
+	// [[1 3 2 2]]
+	// [[1 5 2 4]]
+	// [[1 3 2 2] [4 7 5 6]]
+	// [[1 5 2 4] [6 8 7 7]]
+	// []
+}
+
+func ExampleRegexp_FindSubmatchIndex() {
+	re := regexp.MustCompile(`a(x*)b`)
+	// Indices:
+	//    01234567   012345678
+	//    -ab-axb-   -axxb-ab-
+	fmt.Println(re.FindSubmatchIndex([]byte("-ab-")))
+	fmt.Println(re.FindSubmatchIndex([]byte("-axxb-")))
+	fmt.Println(re.FindSubmatchIndex([]byte("-ab-axb-")))
+	fmt.Println(re.FindSubmatchIndex([]byte("-axxb-ab-")))
+	fmt.Println(re.FindSubmatchIndex([]byte("-foo-")))
+	// Output:
+	// [1 3 2 2]
+	// [1 5 2 4]
+	// [1 3 2 2]
+	// [1 5 2 4]
+	// []
+}
+
+func ExampleRegexp_Longest() {
+	re := regexp.MustCompile(`a(|b)`)
+	fmt.Println(re.FindString("ab"))
+	re.Longest()
+	fmt.Println(re.FindString("ab"))
+	// Output:
+	// a
+	// ab
+}
+
+func ExampleRegexp_MatchString() {
+	re := regexp.MustCompile(`(gopher){2}`)
+	fmt.Println(re.MatchString("gopher"))
+	fmt.Println(re.MatchString("gophergopher"))
+	fmt.Println(re.MatchString("gophergophergopher"))
+	// Output:
+	// false
+	// true
+	// true
+}
+
+func ExampleRegexp_NumSubexp() {
+	re0 := regexp.MustCompile(`a.`)
+	fmt.Printf("%d\n", re0.NumSubexp())
+
+	re := regexp.MustCompile(`(.*)((a)b)(.*)a`)
+	fmt.Println(re.NumSubexp())
+	// Output:
+	// 0
+	// 4
+}
+
+func ExampleRegexp_ReplaceAll() {
+	re := regexp.MustCompile(`a(x*)b`)
+	fmt.Printf("%s\n", re.ReplaceAll([]byte("-ab-axxb-"), []byte("T")))
+	fmt.Printf("%s\n", re.ReplaceAll([]byte("-ab-axxb-"), []byte("$1")))
+	fmt.Printf("%s\n", re.ReplaceAll([]byte("-ab-axxb-"), []byte("$1W")))
+	fmt.Printf("%s\n", re.ReplaceAll([]byte("-ab-axxb-"), []byte("${1}W")))
+	// Output:
+	// -T-T-
+	// --xx-
+	// ---
+	// -W-xxW-
+}
+
+func ExampleRegexp_ReplaceAllLiteralString() {
+	re := regexp.MustCompile(`a(x*)b`)
+	fmt.Println(re.ReplaceAllLiteralString("-ab-axxb-", "T"))
+	fmt.Println(re.ReplaceAllLiteralString("-ab-axxb-", "$1"))
+	fmt.Println(re.ReplaceAllLiteralString("-ab-axxb-", "${1}"))
+	// Output:
+	// -T-T-
+	// -$1-$1-
+	// -${1}-${1}-
+}
+
+func ExampleRegexp_ReplaceAllString() {
+	re := regexp.MustCompile(`a(x*)b`)
+	fmt.Println(re.ReplaceAllString("-ab-axxb-", "T"))
+	fmt.Println(re.ReplaceAllString("-ab-axxb-", "$1"))
+	fmt.Println(re.ReplaceAllString("-ab-axxb-", "$1W"))
+	fmt.Println(re.ReplaceAllString("-ab-axxb-", "${1}W"))
+	// Output:
+	// -T-T-
+	// --xx-
+	// ---
+	// -W-xxW-
+}
+
+func ExampleRegexp_ReplaceAllStringFunc() {
+	re := regexp.MustCompile(`[^aeiou]`)
+	fmt.Println(re.ReplaceAllStringFunc("seafood fool", strings.ToUpper))
+	// Output:
+	// SeaFooD FooL
+}
+
+func ExampleRegexp_SubexpNames() {
+	re := regexp.MustCompile(`(?P<first>[a-zA-Z]+) (?P<last>[a-zA-Z]+)`)
+	fmt.Println(re.MatchString("Alan Turing"))
+	fmt.Printf("%q\n", re.SubexpNames())
+	reversed := fmt.Sprintf("${%s} ${%s}", re.SubexpNames()[2], re.SubexpNames()[1])
+	fmt.Println(reversed)
+	fmt.Println(re.ReplaceAllString("Alan Turing", reversed))
+	// Output:
+	// true
+	// ["" "first" "last"]
+	// ${last} ${first}
+	// Turing Alan
+}
+
+func ExampleRegexp_Split() {
+	a := regexp.MustCompile(`a`)
+	fmt.Println(a.Split("banana", -1))
+	fmt.Println(a.Split("banana", 0))
+	fmt.Println(a.Split("banana", 1))
+	fmt.Println(a.Split("banana", 2))
+	zp := regexp.MustCompile(`z+`)
+	fmt.Println(zp.Split("pizza", -1))
+	fmt.Println(zp.Split("pizza", 0))
+	fmt.Println(zp.Split("pizza", 1))
+	fmt.Println(zp.Split("pizza", 2))
+	// Output:
+	// [b n n ]
+	// []
+	// [banana]
+	// [b nana]
+	// [pi a]
+	// []
+	// [pizza]
+	// [pi a]
+}
+
+func ExampleRegexp_Expand() {
+	content := []byte(`
+	# comment line
+	option1: value1
+	option2: value2
+
+	# another comment line
+	option3: value3
+`)
+
+	// Regex pattern captures "key: value" pair from the content.
+	pattern := regexp.MustCompile(`(?m)(?P<key>\w+):\s+(?P<value>\w+)$`)
+
+	// Template to convert "key: value" to "key=value" by
+	// referencing the values captured by the regex pattern.
+	template := []byte("$key=$value\n")
+
+	result := []byte{}
+
+	// For each match of the regex in the content.
+	for _, submatches := range pattern.FindAllSubmatchIndex(content, -1) {
+		// Apply the captured submatches to the template and append the output
+		// to the result.
+		result = pattern.Expand(result, template, content, submatches)
+	}
+	fmt.Println(string(result))
+	// Output:
+	// option1=value1
+	// option2=value2
+	// option3=value3
+}
+
+func ExampleRegexp_ExpandString() {
+	content := `
+	# comment line
+	option1: value1
+	option2: value2
+
+	# another comment line
+	option3: value3
+`
+
+	// Regex pattern captures "key: value" pair from the content.
+	pattern := regexp.MustCompile(`(?m)(?P<key>\w+):\s+(?P<value>\w+)$`)
+
+	// Template to convert "key: value" to "key=value" by
+	// referencing the values captured by the regex pattern.
+	template := "$key=$value\n"
+
+	result := []byte{}
+
+	// For each match of the regex in the content.
+	for _, submatches := range pattern.FindAllStringSubmatchIndex(content, -1) {
+		// Apply the captured submatches to the template and append the output
+		// to the result.
+		result = pattern.ExpandString(result, template, content, submatches)
+	}
+	fmt.Println(string(result))
+	// Output:
+	// option1=value1
+	// option2=value2
+	// option3=value3
+}
+
+func ExampleRegexp_FindIndex() {
+	content := []byte(`
+	# comment line
+	option1: value1
+	option2: value2
+`)
+	// Regex pattern captures "key: value" pair from the content.
+	pattern := regexp.MustCompile(`(?m)(?P<key>\w+):\s+(?P<value>\w+)$`)
+
+	loc := pattern.FindIndex(content)
+	fmt.Println(loc)
+	fmt.Println(string(content[loc[0]:loc[1]]))
+	// Output:
+	// [18 33]
+	// option1: value1
+}
+
+func ExampleRegexp_FindAllSubmatchIndex() {
+	content := []byte(`
+	# comment line
+	option1: value1
+	option2: value2
+`)
+	// Regex pattern captures "key: value" pair from the content.
+	pattern := regexp.MustCompile(`(?m)(?P<key>\w+):\s+(?P<value>\w+)$`)
+	allIndexes := pattern.FindAllSubmatchIndex(content, -1)
+	for _, loc := range allIndexes {
+		fmt.Println(loc)
+		fmt.Println(string(content[loc[0]:loc[1]]))
+		fmt.Println(string(content[loc[2]:loc[3]]))
+		fmt.Println(string(content[loc[4]:loc[5]]))
+	}
+	// Output:
+	// [18 33 18 25 27 33]
+	// option1: value1
+	// option1
+	// value1
+	// [35 50 35 42 44 50]
+	// option2: value2
+	// option2
+	// value2
+}
+
+func ExampleRegexp_FindAllIndex() {
+	content := []byte("London")
+	re := regexp.MustCompile(`o.`)
+	fmt.Println(re.FindAllIndex(content, 1))
+	fmt.Println(re.FindAllIndex(content, -1))
+	// Output:
+	// [[1 3]]
+	// [[1 3] [4 6]]
+}
diff --git a/libgo/go/regexp/exec_test.go b/libgo/go/regexp/exec_test.go
index 1e87955..1f9a7a9 100644
--- a/libgo/go/regexp/exec_test.go
+++ b/libgo/go/regexp/exec_test.go
@@ -665,7 +665,7 @@
 	for _, data := range benchData {
 		r := MustCompile(data.re)
 		for _, size := range benchSizes {
-			if isRaceBuilder && size.n > 1<<10 {
+			if (isRaceBuilder || testing.Short()) && size.n > 1<<10 {
 				continue
 			}
 			t := makeText(size.n)
@@ -688,7 +688,7 @@
 		b.Fatalf("want onepass regex, but %q is not onepass", r)
 	}
 	for _, size := range benchSizes {
-		if isRaceBuilder && size.n > 1<<10 {
+		if (isRaceBuilder || testing.Short()) && size.n > 1<<10 {
 			continue
 		}
 		t := makeText(size.n)
diff --git a/libgo/go/runtime/alg.go b/libgo/go/runtime/alg.go
index e802fdd..101402c 100644
--- a/libgo/go/runtime/alg.go
+++ b/libgo/go/runtime/alg.go
@@ -281,6 +281,7 @@
 	}
 	return eq(x.data, y.data)
 }
+
 func ifaceeq(x, y iface) bool {
 	xtab := x.tab
 	if xtab == nil && y.tab == nil {
@@ -463,7 +464,6 @@
 func alginit() {
 	// Install AES hash algorithms if the instructions needed are present.
 	if (GOARCH == "386" || GOARCH == "amd64") &&
-		GOOS != "nacl" &&
 		support_aes &&
 		cpu.X86.HasAES && // AESENC
 		cpu.X86.HasSSSE3 && // PSHUFB
@@ -488,7 +488,7 @@
 	getRandomData(aeskeysched[:])
 }
 
-// Note: These routines perform the read with an native endianness.
+// Note: These routines perform the read with a native endianness.
 func readUnaligned32(p unsafe.Pointer) uint32 {
 	q := (*[4]byte)(p)
 	if sys.BigEndian {
diff --git a/libgo/go/runtime/callers_test.go b/libgo/go/runtime/callers_test.go
index ad83f99..26a6f3a 100644
--- a/libgo/go/runtime/callers_test.go
+++ b/libgo/go/runtime/callers_test.go
@@ -5,25 +5,26 @@
 package runtime_test
 
 import (
+	"reflect"
 	"runtime"
 	"strings"
 	"testing"
 )
 
 func f1(pan bool) []uintptr {
-	return f2(pan) // line 14
+	return f2(pan) // line 15
 }
 
 func f2(pan bool) []uintptr {
-	return f3(pan) // line 18
+	return f3(pan) // line 19
 }
 
 func f3(pan bool) []uintptr {
 	if pan {
-		panic("f3") // line 23
+		panic("f3") // line 24
 	}
 	ret := make([]uintptr, 20)
-	return ret[:runtime.Callers(0, ret)] // line 26
+	return ret[:runtime.Callers(0, ret)] // line 27
 }
 
 func testCallers(t *testing.T, pcs []uintptr, pan bool) {
@@ -47,16 +48,16 @@
 
 	var f3Line int
 	if pan {
-		f3Line = 23
+		f3Line = 24
 	} else {
-		f3Line = 26
+		f3Line = 27
 	}
 	want := []struct {
 		name string
 		line int
 	}{
-		{"f1", 14},
-		{"f2", 18},
+		{"f1", 15},
+		{"f2", 19},
 		{"f3", f3Line},
 	}
 	for _, w := range want {
@@ -66,11 +67,38 @@
 	}
 }
 
+func testCallersEqual(t *testing.T, pcs []uintptr, want []string) {
+	got := make([]string, 0, len(want))
+
+	frames := runtime.CallersFrames(pcs)
+	for {
+		frame, more := frames.Next()
+		if !more || len(got) >= len(want) {
+			break
+		}
+		got = append(got, frame.Function)
+	}
+	if !reflect.DeepEqual(want, got) {
+		t.Fatalf("wanted %v, got %v", want, got)
+	}
+}
+
 func TestCallers(t *testing.T) {
 	testCallers(t, f1(false), false)
 }
 
 func TestCallersPanic(t *testing.T) {
+	// Make sure we don't have any extra frames on the stack (due to
+	// open-coded defer processing)
+	want := []string{"runtime.Callers", "runtime_test.TestCallersPanic.func1",
+		"runtime.gopanic", "runtime_test.f3", "runtime_test.f2", "runtime_test.f1",
+		"runtime_test.TestCallersPanic"}
+	if runtime.Compiler == "gccgo" {
+		want = []string{"runtime.Callers", "runtime_test.TestCallersPanic..func1",
+			"runtime.gopanic", "runtime_test.f3", "runtime_test.f2", "runtime_test.f1",
+			"runtime_test.TestCallersPanic"}
+	}
+
 	defer func() {
 		if r := recover(); r == nil {
 			t.Fatal("did not panic")
@@ -78,6 +106,240 @@
 		pcs := make([]uintptr, 20)
 		pcs = pcs[:runtime.Callers(0, pcs)]
 		testCallers(t, pcs, true)
+		testCallersEqual(t, pcs, want)
 	}()
 	f1(true)
 }
+
+func TestCallersDoublePanic(t *testing.T) {
+	// Make sure we don't have any extra frames on the stack (due to
+	// open-coded defer processing)
+	want := []string{"runtime.Callers", "runtime_test.TestCallersDoublePanic.func1.1",
+		"runtime.gopanic", "runtime_test.TestCallersDoublePanic.func1", "runtime.gopanic", "runtime_test.TestCallersDoublePanic"}
+	if runtime.Compiler == "gccgo" {
+		want = []string{"runtime.Callers", "runtime_test.TestCallersDoublePanic..func2",
+			"runtime.gopanic", "runtime_test.TestCallersDoublePanic..func1", "runtime.gopanic", "runtime_test.TestCallersDoublePanic"}
+	}
+
+	defer func() {
+		defer func() {
+			pcs := make([]uintptr, 20)
+			pcs = pcs[:runtime.Callers(0, pcs)]
+			if recover() == nil {
+				t.Fatal("did not panic")
+			}
+			testCallersEqual(t, pcs, want)
+		}()
+		if recover() == nil {
+			t.Fatal("did not panic")
+		}
+		panic(2)
+	}()
+	panic(1)
+}
+
+// Test that a defer after a successful recovery looks like it is called directly
+// from the function with the defers.
+func TestCallersAfterRecovery(t *testing.T) {
+	want := []string{"runtime.Callers", "runtime_test.TestCallersAfterRecovery.func1", "runtime_test.TestCallersAfterRecovery"}
+	if runtime.Compiler == "gccgo" {
+		want = []string{"runtime.Callers", "runtime_test.TestCallersAfterRecovery..func1", "runtime_test.TestCallersAfterRecovery"}
+	}
+
+	defer func() {
+		pcs := make([]uintptr, 20)
+		pcs = pcs[:runtime.Callers(0, pcs)]
+		testCallersEqual(t, pcs, want)
+	}()
+	defer func() {
+		if recover() == nil {
+			t.Fatal("did not recover from panic")
+		}
+	}()
+	panic(1)
+}
+
+func TestCallersAbortedPanic(t *testing.T) {
+	want := []string{"runtime.Callers", "runtime_test.TestCallersAbortedPanic.func2", "runtime_test.TestCallersAbortedPanic"}
+	if runtime.Compiler == "gccgo" {
+		want = []string{"runtime.Callers", "runtime_test.TestCallersAbortedPanic..func2", "runtime_test.TestCallersAbortedPanic"}
+	}
+
+	defer func() {
+		r := recover()
+		if r != nil {
+			t.Fatalf("should be no panic remaining to recover")
+		}
+	}()
+
+	defer func() {
+		// panic2 was aborted/replaced by panic1, so when panic2 was
+		// recovered, there is no remaining panic on the stack.
+		pcs := make([]uintptr, 20)
+		pcs = pcs[:runtime.Callers(0, pcs)]
+		testCallersEqual(t, pcs, want)
+	}()
+	defer func() {
+		r := recover()
+		if r != "panic2" {
+			t.Fatalf("got %v, wanted %v", r, "panic2")
+		}
+	}()
+	defer func() {
+		// panic2 aborts/replaces panic1, because it is a recursive panic
+		// that is not recovered within the defer function called by
+		// panic1 panicking sequence
+		panic("panic2")
+	}()
+	panic("panic1")
+}
+
+func TestCallersAbortedPanic2(t *testing.T) {
+	want := []string{"runtime.Callers", "runtime_test.TestCallersAbortedPanic2.func2", "runtime_test.TestCallersAbortedPanic2"}
+	if runtime.Compiler == "gccgo" {
+		want = []string{"runtime.Callers", "runtime_test.TestCallersAbortedPanic2..func2", "runtime_test.TestCallersAbortedPanic2"}
+	}
+	defer func() {
+		r := recover()
+		if r != nil {
+			t.Fatalf("should be no panic remaining to recover")
+		}
+	}()
+	defer func() {
+		pcs := make([]uintptr, 20)
+		pcs = pcs[:runtime.Callers(0, pcs)]
+		testCallersEqual(t, pcs, want)
+	}()
+	func() {
+		defer func() {
+			r := recover()
+			if r != "panic2" {
+				t.Fatalf("got %v, wanted %v", r, "panic2")
+			}
+		}()
+		func() {
+			defer func() {
+				// Again, panic2 aborts/replaces panic1
+				panic("panic2")
+			}()
+			panic("panic1")
+		}()
+	}()
+}
+
+func TestCallersNilPointerPanic(t *testing.T) {
+	// Make sure we don't have any extra frames on the stack (due to
+	// open-coded defer processing)
+	want := []string{"runtime.Callers", "runtime_test.TestCallersNilPointerPanic.func1",
+		"runtime.gopanic", "runtime.panicmem", "runtime.sigpanic",
+		"runtime_test.TestCallersNilPointerPanic"}
+	if runtime.Compiler == "gccgo" {
+		want = []string{"runtime.Callers", "runtime_test.TestCallersNilPointerPanic..func1",
+			"runtime.gopanic", "runtime.panicmem", "runtime.sigpanic",
+			"runtime_test.TestCallersNilPointerPanic"}
+	}
+
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("did not panic")
+		}
+		pcs := make([]uintptr, 20)
+		pcs = pcs[:runtime.Callers(0, pcs)]
+		testCallersEqual(t, pcs, want)
+	}()
+	var p *int
+	if *p == 3 {
+		t.Fatal("did not see nil pointer panic")
+	}
+}
+
+func TestCallersDivZeroPanic(t *testing.T) {
+	// Make sure we don't have any extra frames on the stack (due to
+	// open-coded defer processing)
+	want := []string{"runtime.Callers", "runtime_test.TestCallersDivZeroPanic.func1",
+		"runtime.gopanic", "runtime.panicdivide",
+		"runtime_test.TestCallersDivZeroPanic"}
+	if runtime.Compiler == "gccgo" {
+		want = []string{"runtime.Callers", "runtime_test.TestCallersDivZeroPanic..func1",
+			"runtime.gopanic", "runtime.panicdivide",
+			"runtime_test.TestCallersDivZeroPanic"}
+	}
+
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("did not panic")
+		}
+		pcs := make([]uintptr, 20)
+		pcs = pcs[:runtime.Callers(0, pcs)]
+		testCallersEqual(t, pcs, want)
+	}()
+	var n int
+	if 5/n == 1 {
+		t.Fatal("did not see divide-by-sizer panic")
+	}
+}
+
+func TestCallersDeferNilFuncPanic(t *testing.T) {
+	// Make sure we don't have any extra frames on the stack. We cut off the check
+	// at runtime.sigpanic, because non-open-coded defers (which may be used in
+	// non-opt or race checker mode) include an extra 'deferreturn' frame (which is
+	// where the nil pointer deref happens).
+	state := 1
+	want := []string{"runtime.Callers", "runtime_test.TestCallersDeferNilFuncPanic.func1",
+		"runtime.gopanic", "runtime.panicmem", "runtime.sigpanic"}
+	if runtime.Compiler == "gccgo" {
+		want = []string{"runtime.Callers", "runtime_test.TestCallersDeferNilFuncPanic..func1",
+			"runtime.gopanic", "runtime.panicmem", "runtime.sigpanic"}
+	}
+
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("did not panic")
+		}
+		pcs := make([]uintptr, 20)
+		pcs = pcs[:runtime.Callers(0, pcs)]
+		testCallersEqual(t, pcs, want)
+		if state == 1 {
+			t.Fatal("nil defer func panicked at defer time rather than function exit time")
+		}
+
+	}()
+	var f func()
+	defer f()
+	// Use the value of 'state' to make sure nil defer func f causes panic at
+	// function exit, rather than at the defer statement.
+	state = 2
+}
+
+// Same test, but forcing non-open-coded defer by putting the defer in a loop.  See
+// issue #36050
+func TestCallersDeferNilFuncPanicWithLoop(t *testing.T) {
+	state := 1
+	want := []string{"runtime.Callers", "runtime_test.TestCallersDeferNilFuncPanicWithLoop.func1",
+		"runtime.gopanic", "runtime.panicmem", "runtime.sigpanic", "runtime.deferreturn", "runtime_test.TestCallersDeferNilFuncPanicWithLoop"}
+	if runtime.Compiler == "gccgo" {
+		want = []string{"runtime.Callers", "runtime_test.TestCallersDeferNilFuncPanicWithLoop..func1",
+			"runtime.gopanic", "runtime.panicmem", "runtime.sigpanic", "runtime_test.TestCallersDeferNilFuncPanicWithLoop"}
+	}
+
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatal("did not panic")
+		}
+		pcs := make([]uintptr, 20)
+		pcs = pcs[:runtime.Callers(0, pcs)]
+		testCallersEqual(t, pcs, want)
+		if state == 1 {
+			t.Fatal("nil defer func panicked at defer time rather than function exit time")
+		}
+
+	}()
+
+	for i := 0; i < 1; i++ {
+		var f func()
+		defer f()
+	}
+	// Use the value of 'state' to make sure nil defer func f causes panic at
+	// function exit, rather than at the defer statement.
+	state = 2
+}
diff --git a/libgo/go/runtime/cgocall.go b/libgo/go/runtime/cgocall.go
index 587001c..efd0e24 100644
--- a/libgo/go/runtime/cgocall.go
+++ b/libgo/go/runtime/cgocall.go
@@ -47,24 +47,24 @@
 
 // cgoCheckPointer checks if the argument contains a Go pointer that
 // points to a Go pointer, and panics if it does.
-func cgoCheckPointer(ptr interface{}, args ...interface{}) {
+func cgoCheckPointer(ptr interface{}, arg interface{}) {
 	if debug.cgocheck == 0 {
 		return
 	}
 
-	ep := (*eface)(unsafe.Pointer(&ptr))
+	ep := efaceOf(&ptr)
 	t := ep._type
 
 	top := true
-	if len(args) > 0 && (t.kind&kindMask == kindPtr || t.kind&kindMask == kindUnsafePointer) {
+	if arg != nil && (t.kind&kindMask == kindPtr || t.kind&kindMask == kindUnsafePointer) {
 		p := ep.data
 		if t.kind&kindDirectIface == 0 {
 			p = *(*unsafe.Pointer)(p)
 		}
-		if !cgoIsGoPointer(p) {
+		if p == nil || !cgoIsGoPointer(p) {
 			return
 		}
-		aep := (*eface)(unsafe.Pointer(&args[0]))
+		aep := efaceOf(&arg)
 		switch aep._type.kind & kindMask {
 		case kindBool:
 			if t.kind&kindMask == kindUnsafePointer {
@@ -101,7 +101,7 @@
 // depending on indir. The top parameter is whether we are at the top
 // level, where Go pointers are allowed.
 func cgoCheckArg(t *_type, p unsafe.Pointer, indir, top bool, msg string) {
-	if t.ptrdata == 0 {
+	if t.ptrdata == 0 || p == nil {
 		// If the type has no pointers there is nothing to do.
 		return
 	}
@@ -158,7 +158,7 @@
 		st := (*slicetype)(unsafe.Pointer(t))
 		s := (*slice)(p)
 		p = s.array
-		if !cgoIsGoPointer(p) {
+		if p == nil || !cgoIsGoPointer(p) {
 			return
 		}
 		if !top {
@@ -189,11 +189,17 @@
 			return
 		}
 		for _, f := range st.fields {
+			if f.typ.ptrdata == 0 {
+				continue
+			}
 			cgoCheckArg(f.typ, add(p, f.offset()), true, top, msg)
 		}
 	case kindPtr, kindUnsafePointer:
 		if indir {
 			p = *(*unsafe.Pointer)(p)
+			if p == nil {
+				return
+			}
 		}
 
 		if !cgoIsGoPointer(p) {
@@ -298,7 +304,7 @@
 		return
 	}
 
-	ep := (*eface)(unsafe.Pointer(&val))
+	ep := efaceOf(&val)
 	t := ep._type
 	cgoCheckArg(t, ep.data, t.kind&kindDirectIface == 0, false, cgoResultFail)
 }
diff --git a/libgo/go/runtime/cgocheck.go b/libgo/go/runtime/cgocheck.go
index 130db29..c03bafe 100644
--- a/libgo/go/runtime/cgocheck.go
+++ b/libgo/go/runtime/cgocheck.go
@@ -134,7 +134,7 @@
 	}
 
 	s := spanOfUnchecked(uintptr(src))
-	if s.state == mSpanManual {
+	if s.state.get() == mSpanManual {
 		// There are no heap bits for value stored on the stack.
 		// For a channel receive src might be on the stack of some
 		// other goroutine, so we can't unwind the stack even if
diff --git a/libgo/go/runtime/chan.go b/libgo/go/runtime/chan.go
index 291fe00..549e566 100644
--- a/libgo/go/runtime/chan.go
+++ b/libgo/go/runtime/chan.go
@@ -133,6 +133,21 @@
 	return add(c.buf, uintptr(i)*uintptr(c.elemsize))
 }
 
+// full reports whether a send on c would block (that is, the channel is full).
+// It uses a single word-sized read of mutable state, so although
+// the answer is instantaneously true, the correct answer may have changed
+// by the time the calling function receives the return value.
+func full(c *hchan) bool {
+	// c.dataqsiz is immutable (never written after the channel is created)
+	// so it is safe to read at any time during channel operation.
+	if c.dataqsiz == 0 {
+		// Assumes that a pointer read is relaxed-atomic.
+		return c.recvq.first == nil
+	}
+	// Assumes that a uint read is relaxed-atomic.
+	return c.qcount == c.dataqsiz
+}
+
 // entry point for c <- x from compiled code
 //go:nosplit
 func chansend1(c *hchan, elem unsafe.Pointer) {
@@ -177,7 +192,7 @@
 	//
 	// After observing that the channel is not closed, we observe that the channel is
 	// not ready for sending. Each of these observations is a single word-sized read
-	// (first c.closed and second c.recvq.first or c.qcount depending on kind of channel).
+	// (first c.closed and second full()).
 	// Because a closed channel cannot transition from 'ready for sending' to
 	// 'not ready for sending', even if the channel is closed between the two observations,
 	// they imply a moment between the two when the channel was both not yet closed
@@ -186,9 +201,10 @@
 	//
 	// It is okay if the reads are reordered here: if we observe that the channel is not
 	// ready for sending and then observe that it is not closed, that implies that the
-	// channel wasn't closed during the first observation.
-	if !block && c.closed == 0 && ((c.dataqsiz == 0 && c.recvq.first == nil) ||
-		(c.dataqsiz > 0 && c.qcount == c.dataqsiz)) {
+	// channel wasn't closed during the first observation. However, nothing here
+	// guarantees forward progress. We rely on the side effects of lock release in
+	// chanrecv() and closechan() to update this thread's view of c.closed and full().
+	if !block && c.closed == 0 && full(c) {
 		return false
 	}
 
@@ -250,7 +266,7 @@
 	gp.waiting = mysg
 	gp.param = nil
 	c.sendq.enqueue(mysg)
-	goparkunlock(&c.lock, waitReasonChanSend, traceEvGoBlockSend, 3)
+	gopark(chanparkcommit, unsafe.Pointer(&c.lock), waitReasonChanSend, traceEvGoBlockSend, 2)
 	// Ensure the value being sent is kept alive until the
 	// receiver copies it out. The sudog has a pointer to the
 	// stack object, but sudogs aren't considered as roots of the
@@ -262,6 +278,7 @@
 		throw("G waiting list is corrupted")
 	}
 	gp.waiting = nil
+	gp.activeStackChans = false
 	if gp.param == nil {
 		if c.closed == 0 {
 			throw("chansend: spurious wakeup")
@@ -417,6 +434,16 @@
 	}
 }
 
+// empty reports whether a read from c would block (that is, the channel is
+// empty).  It uses a single atomic read of mutable state.
+func empty(c *hchan) bool {
+	// c.dataqsiz is immutable.
+	if c.dataqsiz == 0 {
+		return atomic.Loadp(unsafe.Pointer(&c.sendq.first)) == nil
+	}
+	return atomic.Loaduint(&c.qcount) == 0
+}
+
 // entry points for <- c from compiled code
 //go:nosplit
 func chanrecv1(c *hchan, elem unsafe.Pointer) {
@@ -457,21 +484,33 @@
 	}
 
 	// Fast path: check for failed non-blocking operation without acquiring the lock.
-	//
-	// After observing that the channel is not ready for receiving, we observe that the
-	// channel is not closed. Each of these observations is a single word-sized read
-	// (first c.sendq.first or c.qcount, and second c.closed).
-	// Because a channel cannot be reopened, the later observation of the channel
-	// being not closed implies that it was also not closed at the moment of the
-	// first observation. We behave as if we observed the channel at that moment
-	// and report that the receive cannot proceed.
-	//
-	// The order of operations is important here: reversing the operations can lead to
-	// incorrect behavior when racing with a close.
-	if !block && (c.dataqsiz == 0 && c.sendq.first == nil ||
-		c.dataqsiz > 0 && atomic.Loaduint(&c.qcount) == 0) &&
-		atomic.Load(&c.closed) == 0 {
-		return
+	if !block && empty(c) {
+		// After observing that the channel is not ready for receiving, we observe whether the
+		// channel is closed.
+		//
+		// Reordering of these checks could lead to incorrect behavior when racing with a close.
+		// For example, if the channel was open and not empty, was closed, and then drained,
+		// reordered reads could incorrectly indicate "open and empty". To prevent reordering,
+		// we use atomic loads for both checks, and rely on emptying and closing to happen in
+		// separate critical sections under the same lock.  This assumption fails when closing
+		// an unbuffered channel with a blocked send, but that is an error condition anyway.
+		if atomic.Load(&c.closed) == 0 {
+			// Because a channel cannot be reopened, the later observation of the channel
+			// being not closed implies that it was also not closed at the moment of the
+			// first observation. We behave as if we observed the channel at that moment
+			// and report that the receive cannot proceed.
+			return
+		}
+		// The channel is irreversibly closed. Re-check whether the channel has any pending data
+		// to receive, which could have arrived between the empty and closed checks above.
+		// Sequential consistency is also required here, when racing with such a send.
+		if empty(c) {
+			// The channel is irreversibly closed and empty.
+			if ep != nil {
+				typedmemclr(c.elemtype, ep)
+			}
+			return true, false
+		}
 	}
 
 	var t0 int64
@@ -543,13 +582,14 @@
 	mysg.c = c
 	gp.param = nil
 	c.recvq.enqueue(mysg)
-	goparkunlock(&c.lock, waitReasonChanReceive, traceEvGoBlockRecv, 3)
+	gopark(chanparkcommit, unsafe.Pointer(&c.lock), waitReasonChanReceive, traceEvGoBlockRecv, 2)
 
 	// someone woke us up
 	if mysg != gp.waiting {
 		throw("G waiting list is corrupted")
 	}
 	gp.waiting = nil
+	gp.activeStackChans = false
 	if mysg.releasetime > 0 {
 		blockevent(mysg.releasetime-t0, 2)
 	}
@@ -616,6 +656,14 @@
 	goready(gp, skip+1)
 }
 
+func chanparkcommit(gp *g, chanLock unsafe.Pointer) bool {
+	// There are unlocked sudogs that point into gp's stack. Stack
+	// copying must lock the channels of those sudogs.
+	gp.activeStackChans = true
+	unlock((*mutex)(chanLock))
+	return true
+}
+
 // compiler implements
 //
 //	select {
diff --git a/libgo/go/runtime/chan_test.go b/libgo/go/runtime/chan_test.go
index 29fb321..ac81d40 100644
--- a/libgo/go/runtime/chan_test.go
+++ b/libgo/go/runtime/chan_test.go
@@ -485,11 +485,11 @@
 	// If the select in the goroutine is fair,
 	// cnt1 and cnt2 should be about the same value.
 	// With 10,000 trials, the expected margin of error at
-	// a confidence level of five nines is 4.4172 / (2 * Sqrt(10000)).
+	// a confidence level of six nines is 4.891676 / (2 * Sqrt(10000)).
 	r := float64(cnt1) / trials
 	e := math.Abs(r - 0.5)
 	t.Log(cnt1, cnt2, r, e)
-	if e > 4.4172/(2*math.Sqrt(trials)) {
+	if e > 4.891676/(2*math.Sqrt(trials)) {
 		t.Errorf("unfair select: in %d trials, results were %d, %d", trials, cnt1, cnt2)
 	}
 	close(done)
@@ -724,6 +724,7 @@
 		if after.NumGC-before.NumGC >= 2 {
 			goto done
 		}
+		runtime.Gosched()
 	}
 	t.Fatal("failed to trigger concurrent GC")
 done:
@@ -1131,6 +1132,20 @@
 	wg.Wait()
 }
 
+func BenchmarkChanClosed(b *testing.B) {
+	c := make(chan struct{})
+	close(c)
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			select {
+			case <-c:
+			default:
+				b.Error("Unreachable")
+			}
+		}
+	})
+}
+
 var (
 	alwaysFalse = false
 	workSink    = 0
diff --git a/libgo/go/runtime/checkptr.go b/libgo/go/runtime/checkptr.go
new file mode 100644
index 0000000..f478ddd
--- /dev/null
+++ b/libgo/go/runtime/checkptr.go
@@ -0,0 +1,106 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+package runtime
+
+import "unsafe"
+
+type ptrAlignError struct {
+	ptr  unsafe.Pointer
+	elem *_type
+	n    uintptr
+}
+
+func (e ptrAlignError) RuntimeError() {}
+
+func (e ptrAlignError) Error() string {
+	return "runtime error: unsafe pointer conversion"
+}
+
+func checkptrAlignment(p unsafe.Pointer, elem *_type, n uintptr) {
+	// Check that (*[n]elem)(p) is appropriately aligned.
+	// TODO(mdempsky): What about fieldAlign?
+	if uintptr(p)&(uintptr(elem.align)-1) != 0 {
+		panic(ptrAlignError{p, elem, n})
+	}
+
+	// Check that (*[n]elem)(p) doesn't straddle multiple heap objects.
+	if size := n * elem.size; size > 1 && checkptrBase(p) != checkptrBase(add(p, size-1)) {
+		panic(ptrAlignError{p, elem, n})
+	}
+}
+
+type ptrArithError struct {
+	ptr       unsafe.Pointer
+	originals []unsafe.Pointer
+}
+
+func (e ptrArithError) RuntimeError() {}
+
+func (e ptrArithError) Error() string {
+	return "runtime error: unsafe pointer arithmetic"
+}
+
+func checkptrArithmetic(p unsafe.Pointer, originals []unsafe.Pointer) {
+	if 0 < uintptr(p) && uintptr(p) < minLegalPointer {
+		panic(ptrArithError{p, originals})
+	}
+
+	// Check that if the computed pointer p points into a heap
+	// object, then one of the original pointers must have pointed
+	// into the same object.
+	base := checkptrBase(p)
+	if base == 0 {
+		return
+	}
+
+	for _, original := range originals {
+		if base == checkptrBase(original) {
+			return
+		}
+	}
+
+	panic(ptrArithError{p, originals})
+}
+
+// checkptrBase returns the base address for the allocation containing
+// the address p.
+//
+// Importantly, if p1 and p2 point into the same variable, then
+// checkptrBase(p1) == checkptrBase(p2). However, the converse/inverse
+// is not necessarily true as allocations can have trailing padding,
+// and multiple variables may be packed into a single allocation.
+func checkptrBase(p unsafe.Pointer) uintptr {
+	// stack
+	if gp := getg(); gp.stack.lo <= uintptr(p) && uintptr(p) < gp.stack.hi {
+		// TODO(mdempsky): Walk the stack to identify the
+		// specific stack frame or even stack object that p
+		// points into.
+		//
+		// In the mean time, use "1" as a pseudo-address to
+		// represent the stack. This is an invalid address on
+		// all platforms, so it's guaranteed to be distinct
+		// from any of the addresses we might return below.
+		return 1
+	}
+
+	// heap (must check after stack because of #35068)
+	if base, _, _ := findObject(uintptr(p), 0, 0); base != 0 {
+		return base
+	}
+
+	// data or bss
+	for _, datap := range activeModules() {
+		if datap.data <= uintptr(p) && uintptr(p) < datap.edata {
+			return datap.data
+		}
+		if datap.bss <= uintptr(p) && uintptr(p) < datap.ebss {
+			return datap.bss
+		}
+	}
+
+	return 0
+}
diff --git a/libgo/go/runtime/crash_nonunix_test.go b/libgo/go/runtime/crash_nonunix_test.go
index bf349a5..06c197e 100644
--- a/libgo/go/runtime/crash_nonunix_test.go
+++ b/libgo/go/runtime/crash_nonunix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build windows plan9 nacl js,wasm
+// +build windows plan9 js,wasm
 
 package runtime_test
 
diff --git a/libgo/go/runtime/crash_test.go b/libgo/go/runtime/crash_test.go
index 6343e8e..6268f2e 100644
--- a/libgo/go/runtime/crash_test.go
+++ b/libgo/go/runtime/crash_test.go
@@ -104,8 +104,6 @@
 		t.Skip("-quick")
 	}
 
-	checkStaleRuntime(t)
-
 	testprog.Lock()
 	defer testprog.Unlock()
 	if testprog.dir == "" {
@@ -143,34 +141,12 @@
 	return exe, nil
 }
 
-var (
-	staleRuntimeOnce sync.Once // guards init of staleRuntimeErr
-	staleRuntimeErr  error
-)
-
-func checkStaleRuntime(t *testing.T) {
-	staleRuntimeOnce.Do(func() {
-		if runtime.Compiler == "gccgo" {
-			return
-		}
-		// 'go run' uses the installed copy of runtime.a, which may be out of date.
-		out, err := testenv.CleanCmdEnv(exec.Command(testenv.GoToolPath(t), "list", "-gcflags=all="+os.Getenv("GO_GCFLAGS"), "-f", "{{.Stale}}", "runtime")).CombinedOutput()
-		if err != nil {
-			staleRuntimeErr = fmt.Errorf("failed to execute 'go list': %v\n%v", err, string(out))
-			return
-		}
-		if string(out) != "false\n" {
-			t.Logf("go list -f {{.Stale}} runtime:\n%s", out)
-			out, err := testenv.CleanCmdEnv(exec.Command(testenv.GoToolPath(t), "list", "-gcflags=all="+os.Getenv("GO_GCFLAGS"), "-f", "{{.StaleReason}}", "runtime")).CombinedOutput()
-			if err != nil {
-				t.Logf("go list -f {{.StaleReason}} failed: %v", err)
-			}
-			t.Logf("go list -f {{.StaleReason}} runtime:\n%s", out)
-			staleRuntimeErr = fmt.Errorf("Stale runtime.a. Run 'go install runtime'.")
-		}
-	})
-	if staleRuntimeErr != nil {
-		t.Fatal(staleRuntimeErr)
+func TestVDSO(t *testing.T) {
+	t.Parallel()
+	output := runTestProg(t, "testprog", "SignalInVDSO")
+	want := "success\n"
+	if output != want {
+		t.Fatalf("output:\n%s\n\nwanted:\n%s", output, want)
 	}
 }
 
@@ -231,9 +207,23 @@
 		t.Skip("gccgo does not do stack overflow checking")
 	}
 	output := runTestProg(t, "testprog", "StackOverflow")
-	want := "runtime: goroutine stack exceeds 1474560-byte limit\nfatal error: stack overflow"
-	if !strings.HasPrefix(output, want) {
-		t.Fatalf("output does not start with %q:\n%s", want, output)
+	want := []string{
+		"runtime: goroutine stack exceeds 1474560-byte limit\n",
+		"fatal error: stack overflow",
+		// information about the current SP and stack bounds
+		"runtime: sp=",
+		"stack=[",
+	}
+	if !strings.HasPrefix(output, want[0]) {
+		t.Errorf("output does not start with %q", want[0])
+	}
+	for _, s := range want[1:] {
+		if !strings.Contains(output, s) {
+			t.Errorf("output does not contain %q", s)
+		}
+	}
+	if t.Failed() {
+		t.Logf("output:\n%s", output)
 	}
 }
 
@@ -257,6 +247,41 @@
 
 }
 
+func TestRecursivePanic2(t *testing.T) {
+	output := runTestProg(t, "testprog", "RecursivePanic2")
+	want := `first panic
+second panic
+panic: third panic
+
+`
+	if !strings.HasPrefix(output, want) {
+		t.Fatalf("output does not start with %q:\n%s", want, output)
+	}
+
+}
+
+func TestRecursivePanic3(t *testing.T) {
+	output := runTestProg(t, "testprog", "RecursivePanic3")
+	want := `panic: first panic
+
+`
+	if !strings.HasPrefix(output, want) {
+		t.Fatalf("output does not start with %q:\n%s", want, output)
+	}
+
+}
+
+func TestRecursivePanic4(t *testing.T) {
+	output := runTestProg(t, "testprog", "RecursivePanic4")
+	want := `panic: first panic [recovered]
+	panic: second panic
+`
+	if !strings.HasPrefix(output, want) {
+		t.Fatalf("output does not start with %q:\n%s", want, output)
+	}
+
+}
+
 func TestGoexitCrash(t *testing.T) {
 	output := runTestProg(t, "testprog", "GoexitExit")
 	want := "no goroutines (main called runtime.Goexit) - deadlock!"
@@ -389,26 +414,32 @@
 }
 
 func TestRecoverBeforePanicAfterGoexit(t *testing.T) {
-	// 1. defer a function that recovers
-	// 2. defer a function that panics
-	// 3. call goexit
-	// Goexit should run the #2 defer. Its panic
-	// should be caught by the #1 defer, and execution
-	// should resume in the caller. Like the Goexit
-	// never happened!
-	defer func() {
-		r := recover()
-		if r == nil {
-			panic("bad recover")
-		}
-	}()
-	defer func() {
-		panic("hello")
-	}()
-	runtime.Goexit()
+	t.Parallel()
+	output := runTestProg(t, "testprog", "RecoverBeforePanicAfterGoexit")
+	want := "fatal error: no goroutines (main called runtime.Goexit) - deadlock!"
+	if !strings.HasPrefix(output, want) {
+		t.Fatalf("output does not start with %q:\n%s", want, output)
+	}
+}
+
+func TestRecoverBeforePanicAfterGoexit2(t *testing.T) {
+	t.Parallel()
+	output := runTestProg(t, "testprog", "RecoverBeforePanicAfterGoexit2")
+	want := "fatal error: no goroutines (main called runtime.Goexit) - deadlock!"
+	if !strings.HasPrefix(output, want) {
+		t.Fatalf("output does not start with %q:\n%s", want, output)
+	}
 }
 
 func TestNetpollDeadlock(t *testing.T) {
+	if os.Getenv("GO_BUILDER_NAME") == "darwin-amd64-10_12" {
+		// A suspected kernel bug in macOS 10.12 occasionally results in
+		// an apparent deadlock when dialing localhost. The errors have not
+		// been observed on newer versions of the OS, so we don't plan to work
+		// around them. See https://golang.org/issue/22019.
+		testenv.SkipFlaky(t, 22019)
+	}
+
 	t.Parallel()
 	output := runTestProg(t, "testprognet", "NetpollDeadlock")
 	want := "done\n"
@@ -420,7 +451,7 @@
 func TestPanicTraceback(t *testing.T) {
 	t.Parallel()
 	output := runTestProg(t, "testprog", "PanicTraceback")
-	want := "panic: hello"
+	want := "panic: hello\n\tpanic: panic pt2\n\tpanic: panic pt1\n"
 	if !strings.HasPrefix(output, want) {
 		t.Fatalf("output does not start with %q:\n%s", want, output)
 	}
diff --git a/libgo/go/runtime/crash_unix_test.go b/libgo/go/runtime/crash_unix_test.go
index b4b015e..7ce5bb2 100644
--- a/libgo/go/runtime/crash_unix_test.go
+++ b/libgo/go/runtime/crash_unix_test.go
@@ -15,9 +15,11 @@
 	"os/exec"
 	"path/filepath"
 	"runtime"
-	"strings"
+	"sync"
 	"syscall"
 	"testing"
+	"time"
+	"unsafe"
 )
 
 // sigquit is the signal to send to kill a hanging testdata program.
@@ -33,6 +35,29 @@
 	}
 }
 
+func TestBadOpen(t *testing.T) {
+	// make sure we get the correct error code if open fails. Same for
+	// read/write/close on the resulting -1 fd. See issue 10052.
+	nonfile := []byte("/notreallyafile")
+	fd := runtime.Open(&nonfile[0], 0, 0)
+	if fd != -1 {
+		t.Errorf("open(%q)=%d, want -1", nonfile, fd)
+	}
+	var buf [32]byte
+	r := runtime.Read(-1, unsafe.Pointer(&buf[0]), int32(len(buf)))
+	if got, want := r, -int32(syscall.EBADF); got != want {
+		t.Errorf("read()=%d, want %d", got, want)
+	}
+	w := runtime.Write(^uintptr(0), unsafe.Pointer(&buf[0]), int32(len(buf)))
+	if got, want := w, -int32(syscall.EBADF); got != want {
+		t.Errorf("write()=%d, want %d", got, want)
+	}
+	c := runtime.Close(-1)
+	if c != -1 {
+		t.Errorf("close()=%d, want -1", c)
+	}
+}
+
 func TestCrashDumpsAllThreads(t *testing.T) {
 	if *flagQuick {
 		t.Skip("-quick")
@@ -53,8 +78,6 @@
 
 	testenv.MustHaveGoBuild(t)
 
-	checkStaleRuntime(t)
-
 	t.Parallel()
 
 	dir, err := ioutil.TempDir("", "go-build")
@@ -76,18 +99,17 @@
 
 	cmd = exec.Command(filepath.Join(dir, "a.exe"))
 	cmd = testenv.CleanCmdEnv(cmd)
-	cmd.Env = append(cmd.Env, "GOTRACEBACK=crash")
-
-	// Set GOGC=off. Because of golang.org/issue/10958, the tight
-	// loops in the test program are not preemptible. If GC kicks
-	// in, it may lock up and prevent main from saying it's ready.
-	newEnv := []string{}
-	for _, s := range cmd.Env {
-		if !strings.HasPrefix(s, "GOGC=") {
-			newEnv = append(newEnv, s)
-		}
-	}
-	cmd.Env = append(newEnv, "GOGC=off")
+	cmd.Env = append(cmd.Env,
+		"GOTRACEBACK=crash",
+		// Set GOGC=off. Because of golang.org/issue/10958, the tight
+		// loops in the test program are not preemptible. If GC kicks
+		// in, it may lock up and prevent main from saying it's ready.
+		"GOGC=off",
+		// Set GODEBUG=asyncpreemptoff=1. If a thread is preempted
+		// when it receives SIGQUIT, it won't show the expected
+		// stack trace. See issue 35356.
+		"GODEBUG=asyncpreemptoff=1",
+	)
 
 	var outbuf bytes.Buffer
 	cmd.Stdout = &outbuf
@@ -288,3 +310,51 @@
 		t.Fatalf("want %s, got %s\n", want, output)
 	}
 }
+
+func TestSignalM(t *testing.T) {
+	if runtime.Compiler == "gccgo" {
+		t.Skip("no signalM for gccgo")
+	}
+
+	r, w, errno := runtime.Pipe()
+	if errno != 0 {
+		t.Fatal(syscall.Errno(errno))
+	}
+	defer func() {
+		runtime.Close(r)
+		runtime.Close(w)
+	}()
+	runtime.Closeonexec(r)
+	runtime.Closeonexec(w)
+
+	var want, got int64
+	var wg sync.WaitGroup
+	ready := make(chan *runtime.M)
+	wg.Add(1)
+	go func() {
+		runtime.LockOSThread()
+		want, got = runtime.WaitForSigusr1(r, w, func(mp *runtime.M) {
+			ready <- mp
+		})
+		runtime.UnlockOSThread()
+		wg.Done()
+	}()
+	waitingM := <-ready
+	runtime.SendSigusr1(waitingM)
+
+	timer := time.AfterFunc(time.Second, func() {
+		// Write 1 to tell WaitForSigusr1 that we timed out.
+		bw := byte(1)
+		if n := runtime.Write(uintptr(w), unsafe.Pointer(&bw), 1); n != 1 {
+			t.Errorf("pipe write failed: %d", n)
+		}
+	})
+	defer timer.Stop()
+
+	wg.Wait()
+	if got == -1 {
+		t.Fatal("signalM signal not received")
+	} else if want != got {
+		t.Fatalf("signal sent to M %d, but received on M %d", want, got)
+	}
+}
diff --git a/libgo/go/runtime/debug.go b/libgo/go/runtime/debug.go
index e480466..1202e36 100644
--- a/libgo/go/runtime/debug.go
+++ b/libgo/go/runtime/debug.go
@@ -26,12 +26,12 @@
 		return ret
 	}
 
-	stopTheWorld("GOMAXPROCS")
+	stopTheWorldGC("GOMAXPROCS")
 
 	// newprocs will be processed by startTheWorld
 	newprocs = int32(n)
 
-	startTheWorld()
+	startTheWorldGC()
 	return ret
 }
 
diff --git a/libgo/go/runtime/debug/heapdump_test.go b/libgo/go/runtime/debug/heapdump_test.go
index c986efc..de1ec27 100644
--- a/libgo/go/runtime/debug/heapdump_test.go
+++ b/libgo/go/runtime/debug/heapdump_test.go
@@ -13,7 +13,7 @@
 )
 
 func TestWriteHeapDumpNonempty(t *testing.T) {
-	if runtime.GOOS == "nacl" || runtime.GOOS == "js" {
+	if runtime.GOOS == "js" {
 		t.Skipf("WriteHeapDump is not available on %s.", runtime.GOOS)
 	}
 	f, err := ioutil.TempFile("", "heapdumptest")
@@ -42,7 +42,7 @@
 }
 
 func TestWriteHeapDumpFinalizers(t *testing.T) {
-	if runtime.GOOS == "nacl" || runtime.GOOS == "js" {
+	if runtime.GOOS == "js" {
 		t.Skipf("WriteHeapDump is not available on %s.", runtime.GOOS)
 	}
 	f, err := ioutil.TempFile("", "heapdumptest")
diff --git a/libgo/go/runtime/debug/mod.go b/libgo/go/runtime/debug/mod.go
index 58c6ae0..c283928 100644
--- a/libgo/go/runtime/debug/mod.go
+++ b/libgo/go/runtime/debug/mod.go
@@ -23,7 +23,7 @@
 // the running binary.
 type BuildInfo struct {
 	Path string    // The main package path
-	Main Module    // The main module information
+	Main Module    // The module containing the main package
 	Deps []*Module // Module dependencies
 }
 
diff --git a/libgo/go/runtime/debug_test.go b/libgo/go/runtime/debug_test.go
index 12d93de..967477d 100644
--- a/libgo/go/runtime/debug_test.go
+++ b/libgo/go/runtime/debug_test.go
@@ -127,7 +127,7 @@
 		return x + 1
 	}
 	args.x = 42
-	if _, err := runtime.InjectDebugCall(g, fn, &args, debugCallTKill); err != nil {
+	if _, err := runtime.InjectDebugCall(g, fn, &args, debugCallTKill, false); err != nil {
 		t.Fatal(err)
 	}
 	if args.yRet != 43 {
@@ -156,7 +156,7 @@
 		args.in[i] = i
 		want[i] = i + 1
 	}
-	if _, err := runtime.InjectDebugCall(g, fn, &args, debugCallTKill); err != nil {
+	if _, err := runtime.InjectDebugCall(g, fn, &args, debugCallTKill, false); err != nil {
 		t.Fatal(err)
 	}
 	if want != args.out {
@@ -169,7 +169,7 @@
 	defer after()
 
 	// Inject a call that performs a GC.
-	if _, err := runtime.InjectDebugCall(g, runtime.GC, nil, debugCallTKill); err != nil {
+	if _, err := runtime.InjectDebugCall(g, runtime.GC, nil, debugCallTKill, false); err != nil {
 		t.Fatal(err)
 	}
 }
@@ -180,7 +180,7 @@
 
 	// Inject a call that grows the stack. debugCallWorker checks
 	// for stack pointer breakage.
-	if _, err := runtime.InjectDebugCall(g, func() { growStack(nil) }, nil, debugCallTKill); err != nil {
+	if _, err := runtime.InjectDebugCall(g, func() { growStack(nil) }, nil, debugCallTKill, false); err != nil {
 		t.Fatal(err)
 	}
 }
@@ -216,7 +216,7 @@
 		runtime.Gosched()
 	}
 
-	_, err := runtime.InjectDebugCall(g, func() {}, nil, debugCallTKill)
+	_, err := runtime.InjectDebugCall(g, func() {}, nil, debugCallTKill, true)
 	if msg := "call not at safe point"; err == nil || err.Error() != msg {
 		t.Fatalf("want %q, got %s", msg, err)
 	}
@@ -240,7 +240,7 @@
 	}()
 	g := <-ready
 
-	p, err := runtime.InjectDebugCall(g, func() { panic("test") }, nil, debugCallTKill)
+	p, err := runtime.InjectDebugCall(g, func() { panic("test") }, nil, debugCallTKill, false)
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/libgo/go/runtime/debuglog.go b/libgo/go/runtime/debuglog.go
index 4f4109f..404d057 100644
--- a/libgo/go/runtime/debuglog.go
+++ b/libgo/go/runtime/debuglog.go
@@ -803,7 +803,7 @@
 
 func printDebugLogPC(pc uintptr) {
 	print(hex(pc))
-	name, file, line, _ := funcfileline(pc, -1)
+	name, file, line, _ := funcfileline(pc, -1, false)
 	if name == "" {
 		print(" [unknown PC]")
 	} else {
diff --git a/libgo/go/runtime/defer_test.go b/libgo/go/runtime/defer_test.go
new file mode 100644
index 0000000..3d8f812
--- /dev/null
+++ b/libgo/go/runtime/defer_test.go
@@ -0,0 +1,283 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime_test
+
+import (
+	"fmt"
+	"reflect"
+	"runtime"
+	"testing"
+)
+
+// Make sure open-coded defer exit code is not lost, even when there is an
+// unconditional panic (hence no return from the function)
+func TestUnconditionalPanic(t *testing.T) {
+	defer func() {
+		if recover() != "testUnconditional" {
+			t.Fatal("expected unconditional panic")
+		}
+	}()
+	panic("testUnconditional")
+}
+
+var glob int = 3
+
+// Test an open-coded defer and non-open-coded defer - make sure both defers run
+// and call recover()
+func TestOpenAndNonOpenDefers(t *testing.T) {
+	for {
+		// Non-open defer because in a loop
+		defer func(n int) {
+			if recover() != "testNonOpenDefer" {
+				t.Fatal("expected testNonOpen panic")
+			}
+		}(3)
+		if glob > 2 {
+			break
+		}
+	}
+	testOpen(t, 47)
+	panic("testNonOpenDefer")
+}
+
+//go:noinline
+func testOpen(t *testing.T, arg int) {
+	defer func(n int) {
+		if recover() != "testOpenDefer" {
+			t.Fatal("expected testOpen panic")
+		}
+	}(4)
+	if arg > 2 {
+		panic("testOpenDefer")
+	}
+}
+
+// Test a non-open-coded defer and an open-coded defer - make sure both defers run
+// and call recover()
+func TestNonOpenAndOpenDefers(t *testing.T) {
+	testOpen(t, 47)
+	for {
+		// Non-open defer because in a loop
+		defer func(n int) {
+			if recover() != "testNonOpenDefer" {
+				t.Fatal("expected testNonOpen panic")
+			}
+		}(3)
+		if glob > 2 {
+			break
+		}
+	}
+	panic("testNonOpenDefer")
+}
+
+var list []int
+
+// Make sure that conditional open-coded defers are activated correctly and run in
+// the correct order.
+func TestConditionalDefers(t *testing.T) {
+	list = make([]int, 0, 10)
+
+	defer func() {
+		if recover() != "testConditional" {
+			t.Fatal("expected panic")
+		}
+		want := []int{4, 2, 1}
+		if !reflect.DeepEqual(want, list) {
+			t.Fatal(fmt.Sprintf("wanted %v, got %v", want, list))
+		}
+
+	}()
+	testConditionalDefers(8)
+}
+
+func testConditionalDefers(n int) {
+	doappend := func(i int) {
+		list = append(list, i)
+	}
+
+	defer doappend(1)
+	if n > 5 {
+		defer doappend(2)
+		if n > 8 {
+			defer doappend(3)
+		} else {
+			defer doappend(4)
+		}
+	}
+	panic("testConditional")
+}
+
+// Test that there is no compile-time or run-time error if an open-coded defer
+// call is removed by constant propagation and dead-code elimination.
+func TestDisappearingDefer(t *testing.T) {
+	switch runtime.GOOS {
+	case "invalidOS":
+		defer func() {
+			t.Fatal("Defer shouldn't run")
+		}()
+	}
+}
+
+// This tests an extra recursive panic behavior that is only specified in the
+// code. Suppose a first panic P1 happens and starts processing defer calls. If a
+// second panic P2 happens while processing defer call D in frame F, then defer
+// call processing is restarted (with some potentially new defer calls created by
+// D or its callees). If the defer processing reaches the started defer call D
+// again in the defer stack, then the original panic P1 is aborted and cannot
+// continue panic processing or be recovered. If the panic P2 does a recover at
+// some point, it will naturally remove the original panic P1 from the stack
+// (since the original panic had to be in frame F or a descendant of F).
+func TestAbortedPanic(t *testing.T) {
+	defer func() {
+		r := recover()
+		if r != nil {
+			t.Fatal(fmt.Sprintf("wanted nil recover, got %v", r))
+		}
+	}()
+	defer func() {
+		r := recover()
+		if r != "panic2" {
+			t.Fatal(fmt.Sprintf("wanted %v, got %v", "panic2", r))
+		}
+	}()
+	defer func() {
+		panic("panic2")
+	}()
+	panic("panic1")
+}
+
+// This tests that recover() does not succeed unless it is called directly from a
+// defer function that is directly called by the panic.  Here, we first call it
+// from a defer function that is created by the defer function called directly by
+// the panic.  In
+func TestRecoverMatching(t *testing.T) {
+	defer func() {
+		r := recover()
+		if r != "panic1" {
+			t.Fatal(fmt.Sprintf("wanted %v, got %v", "panic1", r))
+		}
+	}()
+	defer func() {
+		defer func() {
+			// Shouldn't succeed, even though it is called directly
+			// from a defer function, since this defer function was
+			// not directly called by the panic.
+			r := recover()
+			if r != nil {
+				t.Fatal(fmt.Sprintf("wanted nil recover, got %v", r))
+			}
+		}()
+	}()
+	panic("panic1")
+}
+
+type nonSSAable [128]byte
+
+type bigStruct struct {
+	x, y, z, w, p, q int64
+}
+
+type containsBigStruct struct {
+	element bigStruct
+}
+
+func mknonSSAable() nonSSAable {
+	globint1++
+	return nonSSAable{0, 0, 0, 0, 5}
+}
+
+var globint1, globint2, globint3 int
+
+//go:noinline
+func sideeffect(n int64) int64 {
+	globint2++
+	return n
+}
+
+func sideeffect2(in containsBigStruct) containsBigStruct {
+	globint3++
+	return in
+}
+
+// Test that nonSSAable arguments to defer are handled correctly and only evaluated once.
+func TestNonSSAableArgs(t *testing.T) {
+	globint1 = 0
+	globint2 = 0
+	globint3 = 0
+	var save1 byte
+	var save2 int64
+	var save3 int64
+	var save4 int64
+
+	defer func() {
+		if globint1 != 1 {
+			t.Fatal(fmt.Sprintf("globint1:  wanted: 1, got %v", globint1))
+		}
+		if save1 != 5 {
+			t.Fatal(fmt.Sprintf("save1:  wanted: 5, got %v", save1))
+		}
+		if globint2 != 1 {
+			t.Fatal(fmt.Sprintf("globint2:  wanted: 1, got %v", globint2))
+		}
+		if save2 != 2 {
+			t.Fatal(fmt.Sprintf("save2:  wanted: 2, got %v", save2))
+		}
+		if save3 != 4 {
+			t.Fatal(fmt.Sprintf("save3:  wanted: 4, got %v", save3))
+		}
+		if globint3 != 1 {
+			t.Fatal(fmt.Sprintf("globint3:  wanted: 1, got %v", globint3))
+		}
+		if save4 != 4 {
+			t.Fatal(fmt.Sprintf("save1:  wanted: 4, got %v", save4))
+		}
+	}()
+
+	// Test function returning a non-SSAable arg
+	defer func(n nonSSAable) {
+		save1 = n[4]
+	}(mknonSSAable())
+	// Test composite literal that is not SSAable
+	defer func(b bigStruct) {
+		save2 = b.y
+	}(bigStruct{1, 2, 3, 4, 5, sideeffect(6)})
+
+	// Test struct field reference that is non-SSAable
+	foo := containsBigStruct{}
+	foo.element.z = 4
+	defer func(element bigStruct) {
+		save3 = element.z
+	}(foo.element)
+	defer func(element bigStruct) {
+		save4 = element.z
+	}(sideeffect2(foo).element)
+}
+
+//go:noinline
+func doPanic() {
+	panic("Test panic")
+}
+
+func TestDeferForFuncWithNoExit(t *testing.T) {
+	cond := 1
+	defer func() {
+		if cond != 2 {
+			t.Fatal(fmt.Sprintf("cond: wanted 2, got %v", cond))
+		}
+		if recover() != "Test panic" {
+			t.Fatal("Didn't find expected panic")
+		}
+	}()
+	x := 0
+	// Force a stack copy, to make sure that the &cond pointer passed to defer
+	// function is properly updated.
+	growStackIter(&x, 1000)
+	cond = 2
+	doPanic()
+
+	// This function has no exit/return, since it ends with an infinite loop
+	for {
+	}
+}
diff --git a/libgo/go/runtime/env_posix.go b/libgo/go/runtime/env_posix.go
index c725bd9..bf8996c 100644
--- a/libgo/go/runtime/env_posix.go
+++ b/libgo/go/runtime/env_posix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package runtime
 
diff --git a/libgo/go/runtime/error.go b/libgo/go/runtime/error.go
index 0c7f631..6cc46bf 100644
--- a/libgo/go/runtime/error.go
+++ b/libgo/go/runtime/error.go
@@ -129,7 +129,7 @@
 	return string(e)
 }
 
-// An boundsError represents a an indexing or slicing operation gone wrong.
+// A boundsError represents an indexing or slicing operation gone wrong.
 type boundsError struct {
 	x int64
 	y int
diff --git a/libgo/go/runtime/export_debug_test.go b/libgo/go/runtime/export_debug_test.go
index 608d756..769ad55 100644
--- a/libgo/go/runtime/export_debug_test.go
+++ b/libgo/go/runtime/export_debug_test.go
@@ -21,7 +21,7 @@
 //
 // On success, InjectDebugCall returns the panic value of fn or nil.
 // If fn did not panic, its results will be available in args.
-func InjectDebugCall(gp *g, fn, args interface{}, tkill func(tid int) error) (interface{}, error) {
+func InjectDebugCall(gp *g, fn, args interface{}, tkill func(tid int) error, returnOnUnsafePoint bool) (interface{}, error) {
 	if gp.lockedm == 0 {
 		return nil, plainError("goroutine not locked to thread")
 	}
@@ -65,9 +65,16 @@
 		notetsleepg(&h.done, -1)
 		if h.err != "" {
 			switch h.err {
-			case "retry _Grunnable", "executing on Go runtime stack":
+			case "call not at safe point":
+				if returnOnUnsafePoint {
+					// This is for TestDebugCallUnsafePoint.
+					return nil, h.err
+				}
+				fallthrough
+			case "retry _Grunnable", "executing on Go runtime stack", "call from within the Go runtime":
 				// These are transient states. Try to get out of them.
 				if i < 100 {
+					usleep(100)
 					Gosched()
 					continue
 				}
diff --git a/libgo/go/runtime/export_linux_test.go b/libgo/go/runtime/export_linux_test.go
index 96ff1c7..1f8e633 100644
--- a/libgo/go/runtime/export_linux_test.go
+++ b/libgo/go/runtime/export_linux_test.go
@@ -10,6 +10,9 @@
 
 // var NewOSProc0 = newosproc0
 // var Mincore = mincore
+var Add = add
+
+type EpollEvent epollevent
 
 func Epollctl(epfd, op, fd int32, ev unsafe.Pointer) int32 {
 	return epollctl(epfd, op, fd, (*epollevent)(ev))
diff --git a/libgo/go/runtime/export_mmap_test.go b/libgo/go/runtime/export_mmap_test.go
index 5f3e99a..000948b 100644
--- a/libgo/go/runtime/export_mmap_test.go
+++ b/libgo/go/runtime/export_mmap_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris
 
 // Export guts for testing.
 
diff --git a/libgo/go/runtime/export_test.go b/libgo/go/runtime/export_test.go
index 10890d3..9a977d8 100644
--- a/libgo/go/runtime/export_test.go
+++ b/libgo/go/runtime/export_test.go
@@ -35,9 +35,18 @@
 var Atoi32 = atoi32
 
 var Nanotime = nanotime
+var NetpollBreak = netpollBreak
+var Usleep = usleep
 
+var PhysPageSize = physPageSize
 var PhysHugePageSize = physHugePageSize
 
+var NetpollGenericInit = netpollGenericInit
+
+var ParseRelease = parseRelease
+
+const PreemptMSupported = preemptMSupported
+
 type LFNode struct {
 	Next    uint64
 	Pushcnt uintptr
@@ -51,6 +60,12 @@
 	return (*LFNode)(unsafe.Pointer((*lfstack)(head).pop()))
 }
 
+func Netpoll(delta int64) {
+	systemstack(func() {
+		netpoll(delta)
+	})
+}
+
 func GCMask(x interface{}) (ret []byte) {
 	return nil
 }
@@ -241,7 +256,7 @@
 	pagesInUse = uintptr(mheap_.pagesInUse)
 
 	for _, s := range mheap_.allspans {
-		if s.state == mSpanInUse {
+		if s.state.get() == mSpanInUse {
 			counted += s.npages
 		}
 	}
@@ -303,7 +318,7 @@
 
 		// Add up current allocations in spans.
 		for _, s := range mheap_.allspans {
-			if s.state != mSpanInUse {
+			if s.state.get() != mSpanInUse {
 				continue
 			}
 			if sizeclass := s.spanclass.sizeclass(); sizeclass == 0 {
@@ -336,9 +351,17 @@
 			slow.BySize[i].Frees = bySize[i].Frees
 		}
 
-		for i := mheap_.free.start(0, 0); i.valid(); i = i.next() {
-			slow.HeapReleased += uint64(i.span().released())
+		for i := mheap_.pages.start; i < mheap_.pages.end; i++ {
+			pg := mheap_.pages.chunkOf(i).scavenged.popcntRange(0, pallocChunkPages)
+			slow.HeapReleased += uint64(pg) * pageSize
 		}
+		for _, p := range allp {
+			pg := sys.OnesCount64(p.pcache.scav)
+			slow.HeapReleased += uint64(pg) * pageSize
+		}
+
+		// Unused space in the current arena also counts as released space.
+		slow.HeapReleased += uint64(mheap_.curArena.end - mheap_.curArena.base)
 
 		getg().m.mallocing--
 	})
@@ -512,170 +535,6 @@
 	}
 }
 
-// UnscavHugePagesSlow returns the value of mheap_.freeHugePages
-// and the number of unscavenged huge pages calculated by
-// scanning the heap.
-func UnscavHugePagesSlow() (uintptr, uintptr) {
-	var base, slow uintptr
-	// Run on the system stack to avoid deadlock from stack growth
-	// trying to acquire the heap lock.
-	systemstack(func() {
-		lock(&mheap_.lock)
-		base = mheap_.free.unscavHugePages
-		for _, s := range mheap_.allspans {
-			if s.state == mSpanFree && !s.scavenged {
-				slow += s.hugePages()
-			}
-		}
-		unlock(&mheap_.lock)
-	})
-	return base, slow
-}
-
-// Span is a safe wrapper around an mspan, whose memory
-// is managed manually.
-type Span struct {
-	*mspan
-}
-
-func AllocSpan(base, npages uintptr, scavenged bool) Span {
-	var s *mspan
-	systemstack(func() {
-		lock(&mheap_.lock)
-		s = (*mspan)(mheap_.spanalloc.alloc())
-		unlock(&mheap_.lock)
-	})
-	s.init(base, npages)
-	s.scavenged = scavenged
-	return Span{s}
-}
-
-func (s *Span) Free() {
-	systemstack(func() {
-		lock(&mheap_.lock)
-		mheap_.spanalloc.free(unsafe.Pointer(s.mspan))
-		unlock(&mheap_.lock)
-	})
-	s.mspan = nil
-}
-
-func (s Span) Base() uintptr {
-	return s.mspan.base()
-}
-
-func (s Span) Pages() uintptr {
-	return s.mspan.npages
-}
-
-type TreapIterType treapIterType
-
-const (
-	TreapIterScav TreapIterType = TreapIterType(treapIterScav)
-	TreapIterHuge               = TreapIterType(treapIterHuge)
-	TreapIterBits               = treapIterBits
-)
-
-type TreapIterFilter treapIterFilter
-
-func TreapFilter(mask, match TreapIterType) TreapIterFilter {
-	return TreapIterFilter(treapFilter(treapIterType(mask), treapIterType(match)))
-}
-
-func (s Span) MatchesIter(mask, match TreapIterType) bool {
-	return treapFilter(treapIterType(mask), treapIterType(match)).matches(s.treapFilter())
-}
-
-type TreapIter struct {
-	treapIter
-}
-
-func (t TreapIter) Span() Span {
-	return Span{t.span()}
-}
-
-func (t TreapIter) Valid() bool {
-	return t.valid()
-}
-
-func (t TreapIter) Next() TreapIter {
-	return TreapIter{t.next()}
-}
-
-func (t TreapIter) Prev() TreapIter {
-	return TreapIter{t.prev()}
-}
-
-// Treap is a safe wrapper around mTreap for testing.
-//
-// It must never be heap-allocated because mTreap is
-// notinheap.
-//
-//go:notinheap
-type Treap struct {
-	mTreap
-}
-
-func (t *Treap) Start(mask, match TreapIterType) TreapIter {
-	return TreapIter{t.start(treapIterType(mask), treapIterType(match))}
-}
-
-func (t *Treap) End(mask, match TreapIterType) TreapIter {
-	return TreapIter{t.end(treapIterType(mask), treapIterType(match))}
-}
-
-func (t *Treap) Insert(s Span) {
-	// mTreap uses a fixalloc in mheap_ for treapNode
-	// allocation which requires the mheap_ lock to manipulate.
-	// Locking here is safe because the treap itself never allocs
-	// or otherwise ends up grabbing this lock.
-	systemstack(func() {
-		lock(&mheap_.lock)
-		t.insert(s.mspan)
-		unlock(&mheap_.lock)
-	})
-	t.CheckInvariants()
-}
-
-func (t *Treap) Find(npages uintptr) TreapIter {
-	return TreapIter{t.find(npages)}
-}
-
-func (t *Treap) Erase(i TreapIter) {
-	// mTreap uses a fixalloc in mheap_ for treapNode
-	// freeing which requires the mheap_ lock to manipulate.
-	// Locking here is safe because the treap itself never allocs
-	// or otherwise ends up grabbing this lock.
-	systemstack(func() {
-		lock(&mheap_.lock)
-		t.erase(i.treapIter)
-		unlock(&mheap_.lock)
-	})
-	t.CheckInvariants()
-}
-
-func (t *Treap) RemoveSpan(s Span) {
-	// See Erase about locking.
-	systemstack(func() {
-		lock(&mheap_.lock)
-		t.removeSpan(s.mspan)
-		unlock(&mheap_.lock)
-	})
-	t.CheckInvariants()
-}
-
-func (t *Treap) Size() int {
-	i := 0
-	t.mTreap.treap.walkTreap(func(t *treapNode) {
-		i++
-	})
-	return i
-}
-
-func (t *Treap) CheckInvariants() {
-	t.mTreap.treap.walkTreap(checkTreapNode)
-	t.mTreap.treap.validateInvariants()
-}
-
 func RunGetgThreadSwitchTest() {
 	// Test that getg works correctly with thread switch.
 	// With gccgo, if we generate getg inlined, the backend
@@ -709,3 +568,377 @@
 		panic("g1 != g3")
 	}
 }
+
+const (
+	PageSize         = pageSize
+	PallocChunkPages = pallocChunkPages
+	PageAlloc64Bit   = pageAlloc64Bit
+)
+
+// Expose pallocSum for testing.
+type PallocSum pallocSum
+
+func PackPallocSum(start, max, end uint) PallocSum { return PallocSum(packPallocSum(start, max, end)) }
+func (m PallocSum) Start() uint                    { return pallocSum(m).start() }
+func (m PallocSum) Max() uint                      { return pallocSum(m).max() }
+func (m PallocSum) End() uint                      { return pallocSum(m).end() }
+
+// Expose pallocBits for testing.
+type PallocBits pallocBits
+
+func (b *PallocBits) Find(npages uintptr, searchIdx uint) (uint, uint) {
+	return (*pallocBits)(b).find(npages, searchIdx)
+}
+func (b *PallocBits) AllocRange(i, n uint)       { (*pallocBits)(b).allocRange(i, n) }
+func (b *PallocBits) Free(i, n uint)             { (*pallocBits)(b).free(i, n) }
+func (b *PallocBits) Summarize() PallocSum       { return PallocSum((*pallocBits)(b).summarize()) }
+func (b *PallocBits) PopcntRange(i, n uint) uint { return (*pageBits)(b).popcntRange(i, n) }
+
+// SummarizeSlow is a slow but more obviously correct implementation
+// of (*pallocBits).summarize. Used for testing.
+func SummarizeSlow(b *PallocBits) PallocSum {
+	var start, max, end uint
+
+	const N = uint(len(b)) * 64
+	for start < N && (*pageBits)(b).get(start) == 0 {
+		start++
+	}
+	for end < N && (*pageBits)(b).get(N-end-1) == 0 {
+		end++
+	}
+	run := uint(0)
+	for i := uint(0); i < N; i++ {
+		if (*pageBits)(b).get(i) == 0 {
+			run++
+		} else {
+			run = 0
+		}
+		if run > max {
+			max = run
+		}
+	}
+	return PackPallocSum(start, max, end)
+}
+
+// Expose non-trivial helpers for testing.
+func FindBitRange64(c uint64, n uint) uint { return findBitRange64(c, n) }
+
+// Given two PallocBits, returns a set of bit ranges where
+// they differ.
+func DiffPallocBits(a, b *PallocBits) []BitRange {
+	ba := (*pageBits)(a)
+	bb := (*pageBits)(b)
+
+	var d []BitRange
+	base, size := uint(0), uint(0)
+	for i := uint(0); i < uint(len(ba))*64; i++ {
+		if ba.get(i) != bb.get(i) {
+			if size == 0 {
+				base = i
+			}
+			size++
+		} else {
+			if size != 0 {
+				d = append(d, BitRange{base, size})
+			}
+			size = 0
+		}
+	}
+	if size != 0 {
+		d = append(d, BitRange{base, size})
+	}
+	return d
+}
+
+// StringifyPallocBits gets the bits in the bit range r from b,
+// and returns a string containing the bits as ASCII 0 and 1
+// characters.
+func StringifyPallocBits(b *PallocBits, r BitRange) string {
+	str := ""
+	for j := r.I; j < r.I+r.N; j++ {
+		if (*pageBits)(b).get(j) != 0 {
+			str += "1"
+		} else {
+			str += "0"
+		}
+	}
+	return str
+}
+
+// Expose pallocData for testing.
+type PallocData pallocData
+
+func (d *PallocData) FindScavengeCandidate(searchIdx uint, min, max uintptr) (uint, uint) {
+	return (*pallocData)(d).findScavengeCandidate(searchIdx, min, max)
+}
+func (d *PallocData) AllocRange(i, n uint) { (*pallocData)(d).allocRange(i, n) }
+func (d *PallocData) ScavengedSetRange(i, n uint) {
+	(*pallocData)(d).scavenged.setRange(i, n)
+}
+func (d *PallocData) PallocBits() *PallocBits {
+	return (*PallocBits)(&(*pallocData)(d).pallocBits)
+}
+func (d *PallocData) Scavenged() *PallocBits {
+	return (*PallocBits)(&(*pallocData)(d).scavenged)
+}
+
+// Expose fillAligned for testing.
+func FillAligned(x uint64, m uint) uint64 { return fillAligned(x, m) }
+
+// Expose pageCache for testing.
+type PageCache pageCache
+
+const PageCachePages = pageCachePages
+
+func NewPageCache(base uintptr, cache, scav uint64) PageCache {
+	return PageCache(pageCache{base: base, cache: cache, scav: scav})
+}
+func (c *PageCache) Empty() bool   { return (*pageCache)(c).empty() }
+func (c *PageCache) Base() uintptr { return (*pageCache)(c).base }
+func (c *PageCache) Cache() uint64 { return (*pageCache)(c).cache }
+func (c *PageCache) Scav() uint64  { return (*pageCache)(c).scav }
+func (c *PageCache) Alloc(npages uintptr) (uintptr, uintptr) {
+	return (*pageCache)(c).alloc(npages)
+}
+func (c *PageCache) Flush(s *PageAlloc) {
+	(*pageCache)(c).flush((*pageAlloc)(s))
+}
+
+// Expose chunk index type.
+type ChunkIdx chunkIdx
+
+// Expose pageAlloc for testing. Note that because pageAlloc is
+// not in the heap, so is PageAlloc.
+type PageAlloc pageAlloc
+
+func (p *PageAlloc) Alloc(npages uintptr) (uintptr, uintptr) {
+	return (*pageAlloc)(p).alloc(npages)
+}
+func (p *PageAlloc) AllocToCache() PageCache {
+	return PageCache((*pageAlloc)(p).allocToCache())
+}
+func (p *PageAlloc) Free(base, npages uintptr) {
+	(*pageAlloc)(p).free(base, npages)
+}
+func (p *PageAlloc) Bounds() (ChunkIdx, ChunkIdx) {
+	return ChunkIdx((*pageAlloc)(p).start), ChunkIdx((*pageAlloc)(p).end)
+}
+func (p *PageAlloc) Scavenge(nbytes uintptr, locked bool) (r uintptr) {
+	systemstack(func() {
+		r = (*pageAlloc)(p).scavenge(nbytes, locked)
+	})
+	return
+}
+func (p *PageAlloc) InUse() []AddrRange {
+	ranges := make([]AddrRange, 0, len(p.inUse.ranges))
+	for _, r := range p.inUse.ranges {
+		ranges = append(ranges, AddrRange{
+			Base:  r.base,
+			Limit: r.limit,
+		})
+	}
+	return ranges
+}
+
+// Returns nil if the PallocData's L2 is missing.
+func (p *PageAlloc) PallocData(i ChunkIdx) *PallocData {
+	ci := chunkIdx(i)
+	l2 := (*pageAlloc)(p).chunks[ci.l1()]
+	if l2 == nil {
+		return nil
+	}
+	return (*PallocData)(&l2[ci.l2()])
+}
+
+// AddrRange represents a range over addresses.
+// Specifically, it represents the range [Base, Limit).
+type AddrRange struct {
+	Base, Limit uintptr
+}
+
+// BitRange represents a range over a bitmap.
+type BitRange struct {
+	I, N uint // bit index and length in bits
+}
+
+// NewPageAlloc creates a new page allocator for testing and
+// initializes it with the scav and chunks maps. Each key in these maps
+// represents a chunk index and each value is a series of bit ranges to
+// set within each bitmap's chunk.
+//
+// The initialization of the pageAlloc preserves the invariant that if a
+// scavenged bit is set the alloc bit is necessarily unset, so some
+// of the bits described by scav may be cleared in the final bitmap if
+// ranges in chunks overlap with them.
+//
+// scav is optional, and if nil, the scavenged bitmap will be cleared
+// (as opposed to all 1s, which it usually is). Furthermore, every
+// chunk index in scav must appear in chunks; ones that do not are
+// ignored.
+func NewPageAlloc(chunks, scav map[ChunkIdx][]BitRange) *PageAlloc {
+	p := new(pageAlloc)
+
+	// We've got an entry, so initialize the pageAlloc.
+	p.init(new(mutex), nil)
+	p.test = true
+
+	for i, init := range chunks {
+		addr := chunkBase(chunkIdx(i))
+
+		// Mark the chunk's existence in the pageAlloc.
+		p.grow(addr, pallocChunkBytes)
+
+		// Initialize the bitmap and update pageAlloc metadata.
+		chunk := p.chunkOf(chunkIndex(addr))
+
+		// Clear all the scavenged bits which grow set.
+		chunk.scavenged.clearRange(0, pallocChunkPages)
+
+		// Apply scavenge state if applicable.
+		if scav != nil {
+			if scvg, ok := scav[i]; ok {
+				for _, s := range scvg {
+					// Ignore the case of s.N == 0. setRange doesn't handle
+					// it and it's a no-op anyway.
+					if s.N != 0 {
+						chunk.scavenged.setRange(s.I, s.N)
+					}
+				}
+			}
+		}
+		p.resetScavengeAddr()
+
+		// Apply alloc state.
+		for _, s := range init {
+			// Ignore the case of s.N == 0. allocRange doesn't handle
+			// it and it's a no-op anyway.
+			if s.N != 0 {
+				chunk.allocRange(s.I, s.N)
+			}
+		}
+
+		// Update heap metadata for the allocRange calls above.
+		p.update(addr, pallocChunkPages, false, false)
+	}
+	return (*PageAlloc)(p)
+}
+
+// FreePageAlloc releases hard OS resources owned by the pageAlloc. Once this
+// is called the pageAlloc may no longer be used. The object itself will be
+// collected by the garbage collector once it is no longer live.
+func FreePageAlloc(pp *PageAlloc) {
+	p := (*pageAlloc)(pp)
+
+	// Free all the mapped space for the summary levels.
+	if pageAlloc64Bit != 0 {
+		for l := 0; l < summaryLevels; l++ {
+			sysFree(unsafe.Pointer(&p.summary[l][0]), uintptr(cap(p.summary[l]))*pallocSumBytes, nil)
+		}
+	} else {
+		resSize := uintptr(0)
+		for _, s := range p.summary {
+			resSize += uintptr(cap(s)) * pallocSumBytes
+		}
+		sysFree(unsafe.Pointer(&p.summary[0][0]), alignUp(resSize, physPageSize), nil)
+	}
+
+	// Free the mapped space for chunks.
+	for i := range p.chunks {
+		if x := p.chunks[i]; x != nil {
+			p.chunks[i] = nil
+			// This memory comes from sysAlloc and will always be page-aligned.
+			sysFree(unsafe.Pointer(x), unsafe.Sizeof(*p.chunks[0]), nil)
+		}
+	}
+}
+
+// BaseChunkIdx is a convenient chunkIdx value which works on both
+// 64 bit and 32 bit platforms, allowing the tests to share code
+// between the two.
+//
+// On AIX, the arenaBaseOffset is 0x0a00000000000000. However, this
+// constant can't be used here because it is negative and will cause
+// a constant overflow.
+//
+// This should not be higher than 0x100*pallocChunkBytes to support
+// mips and mipsle, which only have 31-bit address spaces.
+var BaseChunkIdx = ChunkIdx(chunkIndex(((0xc000*pageAlloc64Bit + 0x100*pageAlloc32Bit) * pallocChunkBytes) + 0x0a00000000000000*sys.GoosAix))
+
+// PageBase returns an address given a chunk index and a page index
+// relative to that chunk.
+func PageBase(c ChunkIdx, pageIdx uint) uintptr {
+	return chunkBase(chunkIdx(c)) + uintptr(pageIdx)*pageSize
+}
+
+type BitsMismatch struct {
+	Base      uintptr
+	Got, Want uint64
+}
+
+func CheckScavengedBitsCleared(mismatches []BitsMismatch) (n int, ok bool) {
+	ok = true
+
+	// Run on the system stack to avoid stack growth allocation.
+	systemstack(func() {
+		getg().m.mallocing++
+
+		// Lock so that we can safely access the bitmap.
+		lock(&mheap_.lock)
+	chunkLoop:
+		for i := mheap_.pages.start; i < mheap_.pages.end; i++ {
+			chunk := mheap_.pages.chunkOf(i)
+			for j := 0; j < pallocChunkPages/64; j++ {
+				// Run over each 64-bit bitmap section and ensure
+				// scavenged is being cleared properly on allocation.
+				// If a used bit and scavenged bit are both set, that's
+				// an error, and could indicate a larger problem, or
+				// an accounting problem.
+				want := chunk.scavenged[j] &^ chunk.pallocBits[j]
+				got := chunk.scavenged[j]
+				if want != got {
+					ok = false
+					if n >= len(mismatches) {
+						break chunkLoop
+					}
+					mismatches[n] = BitsMismatch{
+						Base: chunkBase(i) + uintptr(j)*64*pageSize,
+						Got:  got,
+						Want: want,
+					}
+					n++
+				}
+			}
+		}
+		unlock(&mheap_.lock)
+
+		getg().m.mallocing--
+	})
+	return
+}
+
+func PageCachePagesLeaked() (leaked uintptr) {
+	stopTheWorld("PageCachePagesLeaked")
+
+	// Walk over destroyed Ps and look for unflushed caches.
+	deadp := allp[len(allp):cap(allp)]
+	for _, p := range deadp {
+		// Since we're going past len(allp) we may see nil Ps.
+		// Just ignore them.
+		if p != nil {
+			leaked += uintptr(sys.OnesCount64(p.pcache.cache))
+		}
+	}
+
+	startTheWorld()
+	return
+}
+
+var Semacquire = semacquire
+var Semrelease1 = semrelease1
+
+func SemNwait(addr *uint32) uint32 {
+	root := semroot(addr)
+	return atomic.Load(&root.nwait)
+}
+
+var Pusestackmaps = &usestackmaps
diff --git a/libgo/go/runtime/export_unix_test.go b/libgo/go/runtime/export_unix_test.go
index 064d2b2..9d0f0d8 100644
--- a/libgo/go/runtime/export_unix_test.go
+++ b/libgo/go/runtime/export_unix_test.go
@@ -6,6 +6,13 @@
 
 package runtime
 
+import "unsafe"
+
+var NonblockingPipe = nonblockingPipe
+var Pipe = pipe
+var SetNonblock = setNonblock
+var Closeonexec = closeonexec
+
 func sigismember(mask *sigset, i int) bool {
 	clear := *mask
 	sigdelset(&clear, i)
@@ -17,3 +24,71 @@
 	sigprocmask(_SIG_SETMASK, nil, &sigmask)
 	return sigismember(&sigmask, i)
 }
+
+type M = m
+
+var waitForSigusr1 struct {
+	rdpipe int32
+	wrpipe int32
+	mID    int64
+}
+
+// WaitForSigusr1 blocks until a SIGUSR1 is received. It calls ready
+// when it is set up to receive SIGUSR1. The ready function should
+// cause a SIGUSR1 to be sent. The r and w arguments are a pipe that
+// the signal handler can use to report when the signal is received.
+//
+// Once SIGUSR1 is received, it returns the ID of the current M and
+// the ID of the M the SIGUSR1 was received on. If the caller writes
+// a non-zero byte to w, WaitForSigusr1 returns immediately with -1, -1.
+func WaitForSigusr1(r, w int32, ready func(mp *M)) (int64, int64) {
+	lockOSThread()
+	// Make sure we can receive SIGUSR1.
+	unblocksig(_SIGUSR1)
+
+	waitForSigusr1.rdpipe = r
+	waitForSigusr1.wrpipe = w
+
+	mp := getg().m
+	testSigusr1 = waitForSigusr1Callback
+	ready(mp)
+
+	// Wait for the signal. We use a pipe rather than a note
+	// because write is always async-signal-safe.
+	entersyscallblock()
+	var b byte
+	read(waitForSigusr1.rdpipe, noescape(unsafe.Pointer(&b)), 1)
+	exitsyscall()
+
+	gotM := waitForSigusr1.mID
+	testSigusr1 = nil
+
+	unlockOSThread()
+
+	if b != 0 {
+		// timeout signal from caller
+		return -1, -1
+	}
+	return mp.id, gotM
+}
+
+// waitForSigusr1Callback is called from the signal handler during
+// WaitForSigusr1. It must not have write barriers because there may
+// not be a P.
+//
+//go:nowritebarrierrec
+func waitForSigusr1Callback(gp *g) bool {
+	if gp == nil || gp.m == nil {
+		waitForSigusr1.mID = -1
+	} else {
+		waitForSigusr1.mID = gp.m.id
+	}
+	b := byte(0)
+	write(uintptr(waitForSigusr1.wrpipe), noescape(unsafe.Pointer(&b)), 1)
+	return true
+}
+
+// SendSigusr1 sends SIGUSR1 to mp.
+func SendSigusr1(mp *M) {
+	panic("SendSigusr1")
+}
diff --git a/libgo/go/runtime/extern.go b/libgo/go/runtime/extern.go
index 9dbf057..e2e601f 100644
--- a/libgo/go/runtime/extern.go
+++ b/libgo/go/runtime/extern.go
@@ -125,6 +125,13 @@
 	IDs will refer to the ID of the goroutine at the time of creation; it's possible for this
 	ID to be reused for another goroutine. Setting N to 0 will report no ancestry information.
 
+	asyncpreemptoff: asyncpreemptoff=1 disables signal-based
+	asynchronous goroutine preemption. This makes some loops
+	non-preemptible for long periods, which may delay GC and
+	goroutine scheduling. This is useful for debugging GC issues
+	because it also disables the conservative stack scanning used
+	for asynchronously preempted goroutines.
+
 The net, net/http, and crypto/tls packages also refer to debugging variables in GODEBUG.
 See the documentation for those packages for details.
 
diff --git a/libgo/go/runtime/gc_test.go b/libgo/go/runtime/gc_test.go
index 3eb01bf..8f14bf9 100644
--- a/libgo/go/runtime/gc_test.go
+++ b/libgo/go/runtime/gc_test.go
@@ -22,12 +22,6 @@
 	if os.Getenv("GOGC") == "off" {
 		t.Skip("skipping test; GOGC=off in environment")
 	}
-	if runtime.GOOS == "windows" {
-		t.Skip("skipping test; GOOS=windows http://golang.org/issue/27156")
-	}
-	if runtime.GOOS == "linux" && runtime.GOARCH == "arm64" {
-		t.Skip("skipping test; GOOS=linux GOARCH=arm64 https://github.com/golang/go/issues/27636")
-	}
 	got := runTestProg(t, "testprog", "GCSys")
 	want := "OK\n"
 	if got != want {
@@ -473,25 +467,6 @@
 	}
 }
 
-func TestUnscavHugePages(t *testing.T) {
-	// Allocate 20 MiB and immediately free it a few times to increase
-	// the chance that unscavHugePages isn't zero and that some kind of
-	// accounting had to happen in the runtime.
-	for j := 0; j < 3; j++ {
-		var large [][]byte
-		for i := 0; i < 5; i++ {
-			large = append(large, make([]byte, runtime.PhysHugePageSize))
-		}
-		runtime.KeepAlive(large)
-		runtime.GC()
-	}
-	base, slow := runtime.UnscavHugePagesSlow()
-	if base != slow {
-		logDiff(t, "unscavHugePages", reflect.ValueOf(base), reflect.ValueOf(slow))
-		t.Fatal("unscavHugePages mismatch")
-	}
-}
-
 func logDiff(t *testing.T, prefix string, got, want reflect.Value) {
 	typ := got.Type()
 	switch typ.Kind() {
diff --git a/libgo/go/runtime/gcinfo_test.go b/libgo/go/runtime/gcinfo_test.go
index 89144d5..fc24f04 100644
--- a/libgo/go/runtime/gcinfo_test.go
+++ b/libgo/go/runtime/gcinfo_test.go
@@ -173,14 +173,6 @@
 			typeScalar, typeScalar, typeScalar, // t int; y uint16; u uint64
 			typePointer, typeScalar, // i string
 		}
-	case "amd64p32":
-		return []byte{
-			typePointer,                                                // q *int
-			typeScalar, typeScalar, typeScalar, typeScalar, typeScalar, // w byte; e [17]byte
-			typePointer, typeScalar, typeScalar, // r []byte
-			typeScalar, typeScalar, typeScalar, typeScalar, typeScalar, // t int; y uint16; u uint64
-			typePointer, typeScalar, // i string
-		}
 	default:
 		panic("unknown arch")
 	}
diff --git a/libgo/go/runtime/hash64.go b/libgo/go/runtime/hash64.go
index 3f94256..cff663a 100644
--- a/libgo/go/runtime/hash64.go
+++ b/libgo/go/runtime/hash64.go
@@ -25,8 +25,7 @@
 )
 
 func memhash(p unsafe.Pointer, seed, s uintptr) uintptr {
-	if (GOARCH == "amd64" || GOARCH == "arm64") &&
-		GOOS != "nacl" && useAeshash {
+	if (GOARCH == "amd64" || GOARCH == "arm64") && useAeshash {
 		return aeshash(p, seed, s)
 	}
 	h := uint64(seed + s*hashkey[0])
diff --git a/libgo/go/runtime/heapdump.go b/libgo/go/runtime/heapdump.go
index c968ab3..e8f16e9 100644
--- a/libgo/go/runtime/heapdump.go
+++ b/libgo/go/runtime/heapdump.go
@@ -313,7 +313,7 @@
 func dumproots() {
 	// MSpan.types
 	for _, s := range mheap_.allspans {
-		if s.state == mSpanInUse {
+		if s.state.get() == mSpanInUse {
 			// Finalizers
 			for sp := s.specials; sp != nil; sp = sp.next {
 				if sp.kind != _KindSpecialFinalizer {
@@ -336,7 +336,7 @@
 
 func dumpobjs() {
 	for _, s := range mheap_.allspans {
-		if s.state != mSpanInUse {
+		if s.state.get() != mSpanInUse {
 			continue
 		}
 		p := s.base()
@@ -445,7 +445,7 @@
 	dumpint(uint64(nstk))
 	for i := uintptr(0); i < nstk; i++ {
 		pc := stk[i]
-		fn, file, line, _ := funcfileline(pc, -1)
+		fn, file, line, _ := funcfileline(pc, -1, false)
 		if fn == "" {
 			var buf [64]byte
 			n := len(buf)
@@ -483,7 +483,7 @@
 func dumpmemprof() {
 	iterate_memprof(dumpmemprof_callback)
 	for _, s := range mheap_.allspans {
-		if s.state != mSpanInUse {
+		if s.state.get() != mSpanInUse {
 			continue
 		}
 		for sp := s.specials; sp != nil; sp = sp.next {
@@ -504,7 +504,7 @@
 func mdump() {
 	// make sure we're done sweeping
 	for _, s := range mheap_.allspans {
-		if s.state == mSpanInUse {
+		if s.state.get() == mSpanInUse {
 			s.ensureSwept()
 		}
 	}
diff --git a/libgo/go/runtime/internal/atomic/atomic.c b/libgo/go/runtime/internal/atomic/atomic.c
index 17c83a2..8ae4d7b 100644
--- a/libgo/go/runtime/internal/atomic/atomic.c
+++ b/libgo/go/runtime/internal/atomic/atomic.c
@@ -26,6 +26,16 @@
   return __atomic_load_n ((void **) ptr, __ATOMIC_SEQ_CST);
 }
 
+uint8_t Load8 (uint8_t *ptr)
+  __asm__ (GOSYM_PREFIX "runtime..z2finternal..z2fatomic.Load8")
+  __attribute__ ((no_split_stack));
+
+uint8_t
+Load8 (uint8_t *ptr)
+{
+  return __atomic_load_n (ptr, __ATOMIC_SEQ_CST);
+}
+
 uint64_t Load64 (uint64_t *ptr)
   __asm__ (GOSYM_PREFIX "runtime..z2finternal..z2fatomic.Load64")
   __attribute__ ((no_split_stack));
@@ -238,6 +248,16 @@
   __atomic_store_n (ptr, val, __ATOMIC_SEQ_CST);
 }
 
+void Store8 (uint8_t *ptr, uint8_t val)
+  __asm__ (GOSYM_PREFIX "runtime..z2finternal..z2fatomic.Store8")
+  __attribute__ ((no_split_stack));
+
+void
+Store8 (uint8_t *ptr, uint8_t val)
+{
+  __atomic_store_n (ptr, val, __ATOMIC_SEQ_CST);
+}
+
 void Store64 (uint64_t *ptr, uint64_t val)
   __asm__ (GOSYM_PREFIX "runtime..z2finternal..z2fatomic.Store64")
   __attribute__ ((no_split_stack));
diff --git a/libgo/go/runtime/internal/atomic/atomic_test.go b/libgo/go/runtime/internal/atomic/atomic_test.go
index 0ba7544..0c1125c 100644
--- a/libgo/go/runtime/internal/atomic/atomic_test.go
+++ b/libgo/go/runtime/internal/atomic/atomic_test.go
@@ -86,14 +86,8 @@
 	// a continual source of pain. Test that on 32-bit systems they crash
 	// instead of failing silently.
 
-	switch runtime.GOARCH {
-	default:
-		if unsafe.Sizeof(int(0)) != 4 {
-			t.Skip("test only runs on 32-bit systems")
-		}
-	case "amd64p32":
-		// amd64p32 can handle unaligned atomics.
-		t.Skipf("test not needed on %v", runtime.GOARCH)
+	if unsafe.Sizeof(int(0)) != 4 {
+		t.Skip("test only runs on 32-bit systems")
 	}
 
 	x := make([]uint32, 4)
@@ -109,3 +103,120 @@
 	shouldPanic(t, "Xchg64", func() { atomic.Xchg64(up64, 1) })
 	shouldPanic(t, "Cas64", func() { atomic.Cas64(up64, 1, 2) })
 }
+
+func TestAnd8(t *testing.T) {
+	// Basic sanity check.
+	x := uint8(0xff)
+	for i := uint8(0); i < 8; i++ {
+		atomic.And8(&x, ^(1 << i))
+		if r := uint8(0xff) << (i + 1); x != r {
+			t.Fatalf("clearing bit %#x: want %#x, got %#x", uint8(1<<i), r, x)
+		}
+	}
+
+	// Set every bit in array to 1.
+	a := make([]uint8, 1<<12)
+	for i := range a {
+		a[i] = 0xff
+	}
+
+	// Clear array bit-by-bit in different goroutines.
+	done := make(chan bool)
+	for i := 0; i < 8; i++ {
+		m := ^uint8(1 << i)
+		go func() {
+			for i := range a {
+				atomic.And8(&a[i], m)
+			}
+			done <- true
+		}()
+	}
+	for i := 0; i < 8; i++ {
+		<-done
+	}
+
+	// Check that the array has been totally cleared.
+	for i, v := range a {
+		if v != 0 {
+			t.Fatalf("a[%v] not cleared: want %#x, got %#x", i, uint8(0), v)
+		}
+	}
+}
+
+func TestOr8(t *testing.T) {
+	// Basic sanity check.
+	x := uint8(0)
+	for i := uint8(0); i < 8; i++ {
+		atomic.Or8(&x, 1<<i)
+		if r := (uint8(1) << (i + 1)) - 1; x != r {
+			t.Fatalf("setting bit %#x: want %#x, got %#x", uint8(1)<<i, r, x)
+		}
+	}
+
+	// Start with every bit in array set to 0.
+	a := make([]uint8, 1<<12)
+
+	// Set every bit in array bit-by-bit in different goroutines.
+	done := make(chan bool)
+	for i := 0; i < 8; i++ {
+		m := uint8(1 << i)
+		go func() {
+			for i := range a {
+				atomic.Or8(&a[i], m)
+			}
+			done <- true
+		}()
+	}
+	for i := 0; i < 8; i++ {
+		<-done
+	}
+
+	// Check that the array has been totally set.
+	for i, v := range a {
+		if v != 0xff {
+			t.Fatalf("a[%v] not fully set: want %#x, got %#x", i, uint8(0xff), v)
+		}
+	}
+}
+
+func TestBitwiseContended(t *testing.T) {
+	// Start with every bit in array set to 0.
+	a := make([]uint8, 16)
+
+	// Iterations to try.
+	N := 1 << 16
+	if testing.Short() {
+		N = 1 << 10
+	}
+
+	// Set and then clear every bit in the array bit-by-bit in different goroutines.
+	done := make(chan bool)
+	for i := 0; i < 8; i++ {
+		m := uint8(1 << i)
+		go func() {
+			for n := 0; n < N; n++ {
+				for i := range a {
+					atomic.Or8(&a[i], m)
+					if atomic.Load8(&a[i])&m != m {
+						t.Errorf("a[%v] bit %#x not set", i, m)
+					}
+					atomic.And8(&a[i], ^m)
+					if atomic.Load8(&a[i])&m != 0 {
+						t.Errorf("a[%v] bit %#x not clear", i, m)
+					}
+				}
+			}
+			done <- true
+		}()
+	}
+	for i := 0; i < 8; i++ {
+		<-done
+	}
+
+	// Check that the array has been totally cleared.
+	for i, v := range a {
+		if v != 0 {
+			t.Fatalf("a[%v] not cleared: want %#x, got %#x", i, uint8(0), v)
+		}
+	}
+}
diff --git a/libgo/go/runtime/internal/atomic/bench_test.go b/libgo/go/runtime/internal/atomic/bench_test.go
index 083a75c..de71b0f 100644
--- a/libgo/go/runtime/internal/atomic/bench_test.go
+++ b/libgo/go/runtime/internal/atomic/bench_test.go
@@ -43,6 +43,46 @@
 	}
 }
 
+func BenchmarkAnd8(b *testing.B) {
+	var x [512]uint8 // give byte its own cache line
+	sink = &x
+	for i := 0; i < b.N; i++ {
+		atomic.And8(&x[255], uint8(i))
+	}
+}
+
+func BenchmarkAnd8Parallel(b *testing.B) {
+	var x [512]uint8 // give byte its own cache line
+	sink = &x
+	b.RunParallel(func(pb *testing.PB) {
+		i := uint8(0)
+		for pb.Next() {
+			atomic.And8(&x[255], i)
+			i++
+		}
+	})
+}
+
+func BenchmarkOr8(b *testing.B) {
+	var x [512]uint8 // give byte its own cache line
+	sink = &x
+	for i := 0; i < b.N; i++ {
+		atomic.Or8(&x[255], uint8(i))
+	}
+}
+
+func BenchmarkOr8Parallel(b *testing.B) {
+	var x [512]uint8 // give byte its own cache line
+	sink = &x
+	b.RunParallel(func(pb *testing.PB) {
+		i := uint8(0)
+		for pb.Next() {
+			atomic.Or8(&x[255], i)
+			i++
+		}
+	})
+}
+
 func BenchmarkXadd(b *testing.B) {
 	var x uint32
 	ptr := &x
diff --git a/libgo/go/runtime/internal/atomic/gccgo.go b/libgo/go/runtime/internal/atomic/gccgo.go
index e5edbfb..4df8346 100644
--- a/libgo/go/runtime/internal/atomic/gccgo.go
+++ b/libgo/go/runtime/internal/atomic/gccgo.go
@@ -15,6 +15,9 @@
 func Loadp(ptr unsafe.Pointer) unsafe.Pointer
 
 //go:noescape
+func Load8(ptr *uint8) uint8
+
+//go:noescape
 func Load64(ptr *uint64) uint64
 
 //go:noescape
@@ -56,6 +59,9 @@
 func Store(ptr *uint32, val uint32)
 
 //go:noescape
+func Store8(ptr *uint8, val uint8)
+
+//go:noescape
 func Store64(ptr *uint64, val uint64)
 
 //go:noescape
diff --git a/libgo/go/runtime/internal/sys/intrinsics.go b/libgo/go/runtime/internal/sys/intrinsics.go
index 6906938..d25f350 100644
--- a/libgo/go/runtime/internal/sys/intrinsics.go
+++ b/libgo/go/runtime/internal/sys/intrinsics.go
@@ -37,25 +37,6 @@
 	return int(ntz8tab[x])
 }
 
-var ntz8tab = [256]uint8{
-	0x08, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x05, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x06, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x05, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x07, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x05, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x06, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x05, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
-}
-
 //extern __builtin_bswap64
 func bswap64(uint64) uint64
 
diff --git a/libgo/go/runtime/internal/sys/intrinsics_common.go b/libgo/go/runtime/internal/sys/intrinsics_common.go
new file mode 100644
index 0000000..818d75e
--- /dev/null
+++ b/libgo/go/runtime/internal/sys/intrinsics_common.go
@@ -0,0 +1,143 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package sys
+
+// Copied from math/bits to avoid dependence.
+
+var len8tab = [256]uint8{
+	0x00, 0x01, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+	0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
+	0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06,
+	0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06,
+	0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+	0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+	0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+	0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+	0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+	0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+	0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+	0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+	0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+	0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+	0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+	0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+}
+
+var ntz8tab = [256]uint8{
+	0x08, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x05, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x06, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x05, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x07, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x05, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x06, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x05, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+	0x04, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00,
+}
+
+// len64 returns the minimum number of bits required to represent x; the result is 0 for x == 0.
+func Len64(x uint64) (n int) {
+	if x >= 1<<32 {
+		x >>= 32
+		n = 32
+	}
+	if x >= 1<<16 {
+		x >>= 16
+		n += 16
+	}
+	if x >= 1<<8 {
+		x >>= 8
+		n += 8
+	}
+	return n + int(len8tab[x])
+}
+
+// --- OnesCount ---
+
+const m0 = 0x5555555555555555 // 01010101 ...
+const m1 = 0x3333333333333333 // 00110011 ...
+const m2 = 0x0f0f0f0f0f0f0f0f // 00001111 ...
+
+// OnesCount64 returns the number of one bits ("population count") in x.
+func OnesCount64(x uint64) int {
+	// Implementation: Parallel summing of adjacent bits.
+	// See "Hacker's Delight", Chap. 5: Counting Bits.
+	// The following pattern shows the general approach:
+	//
+	//   x = x>>1&(m0&m) + x&(m0&m)
+	//   x = x>>2&(m1&m) + x&(m1&m)
+	//   x = x>>4&(m2&m) + x&(m2&m)
+	//   x = x>>8&(m3&m) + x&(m3&m)
+	//   x = x>>16&(m4&m) + x&(m4&m)
+	//   x = x>>32&(m5&m) + x&(m5&m)
+	//   return int(x)
+	//
+	// Masking (& operations) can be left away when there's no
+	// danger that a field's sum will carry over into the next
+	// field: Since the result cannot be > 64, 8 bits is enough
+	// and we can ignore the masks for the shifts by 8 and up.
+	// Per "Hacker's Delight", the first line can be simplified
+	// more, but it saves at best one instruction, so we leave
+	// it alone for clarity.
+	const m = 1<<64 - 1
+	x = x>>1&(m0&m) + x&(m0&m)
+	x = x>>2&(m1&m) + x&(m1&m)
+	x = (x>>4 + x) & (m2 & m)
+	x += x >> 8
+	x += x >> 16
+	x += x >> 32
+	return int(x) & (1<<7 - 1)
+}
+
+var deBruijn64tab = [64]byte{
+	0, 1, 56, 2, 57, 49, 28, 3, 61, 58, 42, 50, 38, 29, 17, 4,
+	62, 47, 59, 36, 45, 43, 51, 22, 53, 39, 33, 30, 24, 18, 12, 5,
+	63, 55, 48, 27, 60, 41, 37, 16, 46, 35, 44, 21, 52, 32, 23, 11,
+	54, 26, 40, 15, 34, 20, 31, 10, 25, 14, 19, 9, 13, 8, 7, 6,
+}
+
+const deBruijn64 = 0x03f79d71b4ca8b09
+
+// TrailingZeros64 returns the number of trailing zero bits in x; the result is 64 for x == 0.
+func TrailingZeros64(x uint64) int {
+	if x == 0 {
+		return 64
+	}
+	// If popcount is fast, replace code below with return popcount(^x & (x - 1)).
+	//
+	// x & -x leaves only the right-most bit set in the word. Let k be the
+	// index of that bit. Since only a single bit is set, the value is two
+	// to the power of k. Multiplying by a power of two is equivalent to
+	// left shifting, in this case by k bits. The de Bruijn (64 bit) constant
+	// is such that all six bit, consecutive substrings are distinct.
+	// Therefore, if we have a left shifted version of this constant we can
+	// find by how many bits it was shifted by looking at which six bit
+	// substring ended up at the top of the word.
+	// (Knuth, volume 4, section 7.3.1)
+	return int(deBruijn64tab[(x&-x)*deBruijn64>>(64-6)])
+}
+
+// LeadingZeros64 returns the number of leading zero bits in x; the result is 64 for x == 0.
+func LeadingZeros64(x uint64) int { return 64 - Len64(x) }
+
+// LeadingZeros8 returns the number of leading zero bits in x; the result is 8 for x == 0.
+func LeadingZeros8(x uint8) int { return 8 - Len8(x) }
+
+// TrailingZeros8 returns the number of trailing zero bits in x; the result is 8 for x == 0.
+func TrailingZeros8(x uint8) int {
+	return int(ntz8tab[x])
+}
+
+// Len8 returns the minimum number of bits required to represent x; the result is 0 for x == 0.
+func Len8(x uint8) int {
+	return int(len8tab[x])
+}
diff --git a/libgo/go/runtime/lfstack_32bit.go b/libgo/go/runtime/lfstack_32bit.go
index f50c508..6da037e 100644
--- a/libgo/go/runtime/lfstack_32bit.go
+++ b/libgo/go/runtime/lfstack_32bit.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build 386 amd64p32 arm nacl armbe m68k mips mipsle mips64p32 mips64p32le nios2 ppc s390 sh shbe sparc
+// +build 386 amd64p32 arm armbe m68k mips mipsle mips64p32 mips64p32le nios2 ppc s390 sh shbe sparc
 
 package runtime
 
diff --git a/libgo/go/runtime/libfuzzer.go b/libgo/go/runtime/libfuzzer.go
new file mode 100644
index 0000000..0161955
--- /dev/null
+++ b/libgo/go/runtime/libfuzzer.go
@@ -0,0 +1,75 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build libfuzzer
+
+package runtime
+
+import _ "unsafe" // for go:linkname
+
+func libfuzzerCall(fn *byte, arg0, arg1 uintptr)
+
+func libfuzzerTraceCmp1(arg0, arg1 uint8) {
+	libfuzzerCall(&__sanitizer_cov_trace_cmp1, uintptr(arg0), uintptr(arg1))
+}
+
+func libfuzzerTraceCmp2(arg0, arg1 uint16) {
+	libfuzzerCall(&__sanitizer_cov_trace_cmp2, uintptr(arg0), uintptr(arg1))
+}
+
+func libfuzzerTraceCmp4(arg0, arg1 uint32) {
+	libfuzzerCall(&__sanitizer_cov_trace_cmp4, uintptr(arg0), uintptr(arg1))
+}
+
+func libfuzzerTraceCmp8(arg0, arg1 uint64) {
+	libfuzzerCall(&__sanitizer_cov_trace_cmp8, uintptr(arg0), uintptr(arg1))
+}
+
+func libfuzzerTraceConstCmp1(arg0, arg1 uint8) {
+	libfuzzerCall(&__sanitizer_cov_trace_const_cmp1, uintptr(arg0), uintptr(arg1))
+}
+
+func libfuzzerTraceConstCmp2(arg0, arg1 uint16) {
+	libfuzzerCall(&__sanitizer_cov_trace_const_cmp2, uintptr(arg0), uintptr(arg1))
+}
+
+func libfuzzerTraceConstCmp4(arg0, arg1 uint32) {
+	libfuzzerCall(&__sanitizer_cov_trace_const_cmp4, uintptr(arg0), uintptr(arg1))
+}
+
+func libfuzzerTraceConstCmp8(arg0, arg1 uint64) {
+	libfuzzerCall(&__sanitizer_cov_trace_const_cmp8, uintptr(arg0), uintptr(arg1))
+}
+
+//go:linkname __sanitizer_cov_trace_cmp1 __sanitizer_cov_trace_cmp1
+//go:cgo_import_static __sanitizer_cov_trace_cmp1
+var __sanitizer_cov_trace_cmp1 byte
+
+//go:linkname __sanitizer_cov_trace_cmp2 __sanitizer_cov_trace_cmp2
+//go:cgo_import_static __sanitizer_cov_trace_cmp2
+var __sanitizer_cov_trace_cmp2 byte
+
+//go:linkname __sanitizer_cov_trace_cmp4 __sanitizer_cov_trace_cmp4
+//go:cgo_import_static __sanitizer_cov_trace_cmp4
+var __sanitizer_cov_trace_cmp4 byte
+
+//go:linkname __sanitizer_cov_trace_cmp8 __sanitizer_cov_trace_cmp8
+//go:cgo_import_static __sanitizer_cov_trace_cmp8
+var __sanitizer_cov_trace_cmp8 byte
+
+//go:linkname __sanitizer_cov_trace_const_cmp1 __sanitizer_cov_trace_const_cmp1
+//go:cgo_import_static __sanitizer_cov_trace_const_cmp1
+var __sanitizer_cov_trace_const_cmp1 byte
+
+//go:linkname __sanitizer_cov_trace_const_cmp2 __sanitizer_cov_trace_const_cmp2
+//go:cgo_import_static __sanitizer_cov_trace_const_cmp2
+var __sanitizer_cov_trace_const_cmp2 byte
+
+//go:linkname __sanitizer_cov_trace_const_cmp4 __sanitizer_cov_trace_const_cmp4
+//go:cgo_import_static __sanitizer_cov_trace_const_cmp4
+var __sanitizer_cov_trace_const_cmp4 byte
+
+//go:linkname __sanitizer_cov_trace_const_cmp8 __sanitizer_cov_trace_const_cmp8
+//go:cgo_import_static __sanitizer_cov_trace_const_cmp8
+var __sanitizer_cov_trace_const_cmp8 byte
diff --git a/libgo/go/runtime/lock_futex.go b/libgo/go/runtime/lock_futex.go
index 6f86e91..f672efd 100644
--- a/libgo/go/runtime/lock_futex.go
+++ b/libgo/go/runtime/lock_futex.go
@@ -241,7 +241,7 @@
 	return ok
 }
 
-func beforeIdle() bool {
+func beforeIdle(int64) bool {
 	return false
 }
 
diff --git a/libgo/go/runtime/lock_js.go b/libgo/go/runtime/lock_js.go
index c038499..3168c86 100644
--- a/libgo/go/runtime/lock_js.go
+++ b/libgo/go/runtime/lock_js.go
@@ -111,6 +111,8 @@
 		gopark(nil, nil, waitReasonSleep, traceEvNone, 1)
 
 		clearTimeoutEvent(id) // note might have woken early, clear timeout
+		clearIdleID()
+
 		mp = acquirem()
 		delete(notes, n)
 		delete(notesWithTimeout, n)
@@ -144,33 +146,65 @@
 	}
 }
 
-var returnedEventHandler *g
+// events is a stack of calls from JavaScript into Go.
+var events []*event
 
-func init() {
-	// At the toplevel we need an extra goroutine that handles asynchronous events.
-	initg := getg()
-	go func() {
-		returnedEventHandler = getg()
-		goready(initg, 1)
-
-		gopark(nil, nil, waitReasonZero, traceEvNone, 1)
-		returnedEventHandler = nil
-
-		pause(getcallersp() - 16)
-	}()
-	gopark(nil, nil, waitReasonZero, traceEvNone, 1)
+type event struct {
+	// g was the active goroutine when the call from JavaScript occurred.
+	// It needs to be active when returning to JavaScript.
+	gp *g
+	// returned reports whether the event handler has returned.
+	// When all goroutines are idle and the event handler has returned,
+	// then g gets resumed and returns the execution to JavaScript.
+	returned bool
 }
 
+// The timeout event started by beforeIdle.
+var idleID int32
+
 // beforeIdle gets called by the scheduler if no goroutine is awake.
-// We resume the event handler (if available) which will pause the execution.
-func beforeIdle() bool {
-	if returnedEventHandler != nil {
-		goready(returnedEventHandler, 1)
+// If we are not already handling an event, then we pause for an async event.
+// If an event handler returned, we resume it and it will pause the execution.
+func beforeIdle(delay int64) bool {
+	if delay > 0 {
+		clearIdleID()
+		if delay < 1e6 {
+			delay = 1
+		} else if delay < 1e15 {
+			delay = delay / 1e6
+		} else {
+			// An arbitrary cap on how long to wait for a timer.
+			// 1e9 ms == ~11.5 days.
+			delay = 1e9
+		}
+		idleID = scheduleTimeoutEvent(delay)
+	}
+
+	if len(events) == 0 {
+		go handleAsyncEvent()
+		return true
+	}
+
+	e := events[len(events)-1]
+	if e.returned {
+		goready(e.gp, 1)
 		return true
 	}
 	return false
 }
 
+func handleAsyncEvent() {
+	pause(getcallersp() - 16)
+}
+
+// clearIdleID clears our record of the timeout started by beforeIdle.
+func clearIdleID() {
+	if idleID != 0 {
+		clearTimeoutEvent(idleID)
+		idleID = 0
+	}
+}
+
 // pause sets SP to newsp and pauses the execution of Go's WebAssembly code until an event is triggered.
 func pause(newsp uintptr)
 
@@ -181,18 +215,29 @@
 // clearTimeoutEvent clears a timeout event scheduled by scheduleTimeoutEvent.
 func clearTimeoutEvent(id int32)
 
+// handleEvent gets invoked on a call from JavaScript into Go. It calls the event handler of the syscall/js package
+// and then parks the handler goroutine to allow other goroutines to run before giving execution back to JavaScript.
+// When no other goroutine is awake any more, beforeIdle resumes the handler goroutine. Now that the same goroutine
+// is running as was running when the call came in from JavaScript, execution can be safely passed back to JavaScript.
 func handleEvent() {
-	prevReturnedEventHandler := returnedEventHandler
-	returnedEventHandler = nil
+	e := &event{
+		gp:       getg(),
+		returned: false,
+	}
+	events = append(events, e)
 
-	checkTimeouts()
 	eventHandler()
 
-	returnedEventHandler = getg()
+	clearIdleID()
+
+	// wait until all goroutines are idle
+	e.returned = true
 	gopark(nil, nil, waitReasonZero, traceEvNone, 1)
 
-	returnedEventHandler = prevReturnedEventHandler
+	events[len(events)-1] = nil
+	events = events[:len(events)-1]
 
+	// return execution to JavaScript
 	pause(getcallersp() - 16)
 }
 
diff --git a/libgo/go/runtime/lock_sema.go b/libgo/go/runtime/lock_sema.go
index 5cf2406..63a6014 100644
--- a/libgo/go/runtime/lock_sema.go
+++ b/libgo/go/runtime/lock_sema.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin hurd nacl netbsd openbsd plan9 solaris windows
+// +build aix darwin hurd netbsd openbsd plan9 solaris windows
 
 package runtime
 
@@ -300,7 +300,7 @@
 	return ok
 }
 
-func beforeIdle() bool {
+func beforeIdle(int64) bool {
 	return false
 }
 
diff --git a/libgo/go/runtime/malloc.go b/libgo/go/runtime/malloc.go
index 0eee55e..fda2273 100644
--- a/libgo/go/runtime/malloc.go
+++ b/libgo/go/runtime/malloc.go
@@ -19,7 +19,7 @@
 //	fixalloc: a free-list allocator for fixed-size off-heap objects,
 //		used to manage storage used by the allocator.
 //	mheap: the malloc heap, managed at page (8192-byte) granularity.
-//	mspan: a run of pages managed by the mheap.
+//	mspan: a run of in-use pages managed by the mheap.
 //	mcentral: collects all spans of a given size class.
 //	mcache: a per-P cache of mspans with free space.
 //	mstats: allocation statistics.
@@ -56,13 +56,8 @@
 //	   it is placed on the mcentral free list for the mspan's size
 //	   class.
 //
-//	3. Otherwise, if all objects in the mspan are free, the mspan
-//	   is now "idle", so it is returned to the mheap and no longer
-//	   has a size class.
-//	   This may coalesce it with adjacent idle mspans.
-//
-//	4. If an mspan remains idle for long enough, return its pages
-//	   to the operating system.
+//	3. Otherwise, if all objects in the mspan are free, the mspan's
+//	   pages are returned to the mheap and the mspan is now dead.
 //
 // Allocating and freeing a large object uses the mheap
 // directly, bypassing the mcache and mcentral.
@@ -207,17 +202,21 @@
 	// exceed Go's 48 bit limit, it's extremely unlikely in
 	// practice.
 	//
-	// On aix/ppc64, the limits is increased to 1<<60 to accept addresses
-	// returned by mmap syscall. These are in range:
-	//  0x0a00000000000000 - 0x0afffffffffffff
-	//
 	// On 32-bit platforms, we accept the full 32-bit address
 	// space because doing so is cheap.
 	// mips32 only has access to the low 2GB of virtual memory, so
 	// we further limit it to 31 bits.
 	//
+	// On darwin/arm64, although 64-bit pointers are presumably
+	// available, pointers are truncated to 33 bits. Furthermore,
+	// only the top 4 GiB of the address space are actually available
+	// to the application, but we allow the whole 33 bits anyway for
+	// simplicity.
+	// TODO(mknyszek): Consider limiting it to 32 bits and using
+	// arenaBaseOffset to offset into the top 4 GiB.
+	//
 	// WebAssembly currently has a limit of 4GB linear memory.
-	heapAddrBits = (_64bit*(1-sys.GoarchWasm)*(1-sys.GoosAix))*48 + (1-_64bit+sys.GoarchWasm)*(32-(sys.GoarchMips+sys.GoarchMipsle)) + 60*(sys.GoosAix*_64bit)
+	heapAddrBits = (_64bit*(1-sys.GoarchWasm)*(1-sys.GoosDarwin*sys.GoarchArm64))*48 + (1-_64bit+sys.GoarchWasm)*(32-(sys.GoarchMips+sys.GoarchMipsle)) + 33*sys.GoosDarwin*sys.GoarchArm64
 
 	// maxAlloc is the maximum size of an allocation. On 64-bit,
 	// it's theoretically possible to allocate 1<<heapAddrBits bytes. On
@@ -236,7 +235,6 @@
 	//       Platform  Addr bits  Arena size  L1 entries   L2 entries
 	// --------------  ---------  ----------  ----------  -----------
 	//       */64-bit         48        64MB           1    4M (32MB)
-	//     aix/64-bit         60       256MB        4096    4M (32MB)
 	// windows/64-bit         48         4MB          64    1M  (8MB)
 	//       */32-bit         32         4MB           1  1024  (4KB)
 	//     */mips(le)         31         4MB           1   512  (2KB)
@@ -258,7 +256,7 @@
 	// logHeapArenaBytes is log_2 of heapArenaBytes. For clarity,
 	// prefer using heapArenaBytes where possible (we need the
 	// constant to compute some other constants).
-	logHeapArenaBytes = (6+20)*(_64bit*(1-sys.GoosWindows)*(1-sys.GoosAix)) + (2+20)*(_64bit*sys.GoosWindows) + (2+20)*(1-_64bit) + (8+20)*(sys.GoosAix*_64bit)
+	logHeapArenaBytes = (6+20)*(_64bit*(1-sys.GoosWindows)*(1-sys.GoarchWasm)) + (2+20)*(_64bit*sys.GoosWindows) + (2+20)*(1-_64bit) + (2+20)*sys.GoarchWasm
 
 	// heapArenaBitmapBytes is the size of each heap arena's bitmap.
 	heapArenaBitmapBytes = heapArenaBytes / (sys.PtrSize * 8 / 2)
@@ -278,10 +276,7 @@
 	// We use the L1 map on 64-bit Windows because the arena size
 	// is small, but the address space is still 48 bits, and
 	// there's a high cost to having a large L2.
-	//
-	// We use the L1 map on aix/ppc64 to keep the same L2 value
-	// as on Linux.
-	arenaL1Bits = 6*(_64bit*sys.GoosWindows) + 12*(sys.GoosAix*_64bit)
+	arenaL1Bits = 6 * (_64bit * sys.GoosWindows)
 
 	// arenaL2Bits is the number of bits of the arena number
 	// covered by the second level arena index.
@@ -308,9 +303,15 @@
 	// bits. This offset lets us handle "negative" addresses (or
 	// high addresses if viewed as unsigned).
 	//
+	// On aix/ppc64, this offset allows to keep the heapAddrBits to
+	// 48. Otherwize, it would be 60 in order to handle mmap addresses
+	// (in range 0x0a00000000000000 - 0x0afffffffffffff). But in this
+	// case, the memory reserved in (s *pageAlloc).init for chunks
+	// is causing important slowdowns.
+	//
 	// On other platforms, the user address space is contiguous
 	// and starts at 0, so no offset is necessary.
-	arenaBaseOffset uintptr = sys.GoarchAmd64 * (1 << 47)
+	arenaBaseOffset = sys.GoarchAmd64*(1<<47) + (^0x0a00000000000000+1)&uintptrMask*sys.GoosAix
 
 	// Max number of threads to run garbage collection.
 	// 2, 3, and 4 are all plausible maximums depending
@@ -444,6 +445,10 @@
 		// The OS init code failed to fetch the physical page size.
 		throw("failed to get system page size")
 	}
+	if physPageSize > maxPhysPageSize {
+		print("system page size (", physPageSize, ") is larger than maximum page size (", maxPhysPageSize, ")\n")
+		throw("bad system page size")
+	}
 	if physPageSize < minPhysPageSize {
 		print("system page size (", physPageSize, ") is smaller than minimum page size (", minPhysPageSize, ")\n")
 		throw("bad system page size")
@@ -456,6 +461,13 @@
 		print("system huge page size (", physHugePageSize, ") must be a power of 2\n")
 		throw("bad system huge page size")
 	}
+	if physHugePageSize > maxPhysHugePageSize {
+		// physHugePageSize is greater than the maximum supported huge page size.
+		// Don't throw here, like in the other cases, since a system configured
+		// in this way isn't wrong, we just don't have the code to support them.
+		// Instead, silently set the huge page size to zero.
+		physHugePageSize = 0
+	}
 	if physHugePageSize != 0 {
 		// Since physHugePageSize is a power of 2, it suffices to increase
 		// physHugePageShift until 1<<physHugePageShift == physHugePageSize.
@@ -579,7 +591,7 @@
 		if mheap_.heapArenaAlloc.next <= p && p < mheap_.heapArenaAlloc.end {
 			p = mheap_.heapArenaAlloc.end
 		}
-		p = round(p+(256<<10), heapArenaBytes)
+		p = alignUp(p+(256<<10), heapArenaBytes)
 		// Because we're worried about fragmentation on
 		// 32-bit, we try to make a large initial reservation.
 		arenaSizes := [...]uintptr{
@@ -612,7 +624,7 @@
 //
 // h must be locked.
 func (h *mheap) sysAlloc(n uintptr) (v unsafe.Pointer, size uintptr) {
-	n = round(n, heapArenaBytes)
+	n = alignUp(n, heapArenaBytes)
 
 	// First, try the arena pre-reservation.
 	v = h.arena.alloc(n, heapArenaBytes, &memstats.heap_sys)
@@ -795,7 +807,7 @@
 		// re-reserve the aligned sub-region. This may race,
 		// so we may have to try again.
 		sysFree(unsafe.Pointer(p), size+align, nil)
-		p = round(p, align)
+		p = alignUp(p, align)
 		p2 := sysReserve(unsafe.Pointer(p), size)
 		if p != uintptr(p2) {
 			// Must have raced. Try again.
@@ -809,7 +821,7 @@
 		return p2, size
 	default:
 		// Trim off the unaligned parts.
-		pAligned := round(p, align)
+		pAligned := alignUp(p, align)
 		sysFree(unsafe.Pointer(p), pAligned-p, nil)
 		end := pAligned + size
 		endLen := (p + size + align) - end
@@ -998,11 +1010,11 @@
 			off := c.tinyoffset
 			// Align tiny pointer for required (conservative) alignment.
 			if size&7 == 0 {
-				off = round(off, 8)
+				off = alignUp(off, 8)
 			} else if size&3 == 0 {
-				off = round(off, 4)
+				off = alignUp(off, 4)
 			} else if size&1 == 0 {
-				off = round(off, 2)
+				off = alignUp(off, 2)
 			}
 			if off+size <= maxTinySize && c.tiny != 0 {
 				// The object fits into existing tiny block.
@@ -1160,7 +1172,7 @@
 	// pays the debt down to npage pages.
 	deductSweepCredit(npages*_PageSize, npages)
 
-	s := mheap_.alloc(npages, makeSpanClass(0, noscan), true, needzero)
+	s := mheap_.alloc(npages, makeSpanClass(0, noscan), needzero)
 	if s == nil {
 		throw("out of memory")
 	}
@@ -1338,7 +1350,7 @@
 		lock(&globalAlloc.mutex)
 		persistent = &globalAlloc.persistentAlloc
 	}
-	persistent.off = round(persistent.off, align)
+	persistent.off = alignUp(persistent.off, align)
 	if persistent.off+size > persistentChunkSize || persistent.base == nil {
 		persistent.base = (*notInHeap)(sysAlloc(persistentChunkSize, &memstats.other_sys))
 		if persistent.base == nil {
@@ -1356,7 +1368,7 @@
 				break
 			}
 		}
-		persistent.off = round(sys.PtrSize, align)
+		persistent.off = alignUp(sys.PtrSize, align)
 	}
 	p := persistent.base.add(persistent.off)
 	persistent.off += size
@@ -1402,12 +1414,12 @@
 }
 
 func (l *linearAlloc) alloc(size, align uintptr, sysStat *uint64) unsafe.Pointer {
-	p := round(l.next, align)
+	p := alignUp(l.next, align)
 	if p+size > l.end {
 		return nil
 	}
 	l.next = p + size
-	if pEnd := round(l.next-1, physPageSize); pEnd > l.mapped {
+	if pEnd := alignUp(l.next-1, physPageSize); pEnd > l.mapped {
 		// Transition from Reserved to Prepared to Ready.
 		sysMap(unsafe.Pointer(l.mapped), pEnd-l.mapped, sysStat)
 		sysUsed(unsafe.Pointer(l.mapped), pEnd-l.mapped)
diff --git a/libgo/go/runtime/malloc_test.go b/libgo/go/runtime/malloc_test.go
index c9282ba..bd30bc1 100644
--- a/libgo/go/runtime/malloc_test.go
+++ b/libgo/go/runtime/malloc_test.go
@@ -170,6 +170,14 @@
 	}
 }
 
+func TestPageCacheLeak(t *testing.T) {
+	defer GOMAXPROCS(GOMAXPROCS(1))
+	leaked := PageCachePagesLeaked()
+	if leaked != 0 {
+		t.Fatalf("found %d leaked pages in page caches", leaked)
+	}
+}
+
 func TestPhysicalMemoryUtilization(t *testing.T) {
 	got := runTestProg(t, "testprog", "GCPhys")
 	want := "OK\n"
@@ -178,6 +186,19 @@
 	}
 }
 
+func TestScavengedBitsCleared(t *testing.T) {
+	var mismatches [128]BitsMismatch
+	if n, ok := CheckScavengedBitsCleared(mismatches[:]); !ok {
+		t.Errorf("uncleared scavenged bits")
+		for _, m := range mismatches[:n] {
+			t.Logf("\t@ address 0x%x", m.Base)
+			t.Logf("\t|  got: %064b", m.Got)
+			t.Logf("\t| want: %064b", m.Want)
+		}
+		t.FailNow()
+	}
+}
+
 type acLink struct {
 	x [1 << 20]byte
 }
diff --git a/libgo/go/runtime/map.go b/libgo/go/runtime/map.go
index 3672908..6667fe7 100644
--- a/libgo/go/runtime/map.go
+++ b/libgo/go/runtime/map.go
@@ -1429,5 +1429,5 @@
 	return h.count
 }
 
-const maxZero = 1024 // must match value in cmd/compile/internal/gc/walk.go
+const maxZero = 1024 // must match value in cmd/compile/internal/gc/walk.go:zeroValSize
 var zeroVal [maxZero]byte
diff --git a/libgo/go/runtime/map_benchmark_test.go b/libgo/go/runtime/map_benchmark_test.go
index cf04ead..bae1aa0 100644
--- a/libgo/go/runtime/map_benchmark_test.go
+++ b/libgo/go/runtime/map_benchmark_test.go
@@ -251,7 +251,7 @@
 }
 
 func BenchmarkMapCycle(b *testing.B) {
-	// Arrange map entries to be a permuation, so that
+	// Arrange map entries to be a permutation, so that
 	// we hit all entries, and one lookup is data dependent
 	// on the previous lookup.
 	const N = 3127
diff --git a/libgo/go/runtime/mbitmap.go b/libgo/go/runtime/mbitmap.go
index b84fe0f..457da13 100644
--- a/libgo/go/runtime/mbitmap.go
+++ b/libgo/go/runtime/mbitmap.go
@@ -243,6 +243,10 @@
 }
 
 // isFree reports whether the index'th object in s is unallocated.
+//
+// The caller must ensure s.state is mSpanInUse, and there must have
+// been no preemption points since ensuring this (which could allow a
+// GC transition, which would allow the state to change).
 func (s *mspan) isFree(index uintptr) bool {
 	if index < s.freeindex {
 		return false
@@ -349,6 +353,33 @@
 	return
 }
 
+// badPointer throws bad pointer in heap panic.
+func badPointer(s *mspan, p, refBase, refOff uintptr) {
+	// Typically this indicates an incorrect use
+	// of unsafe or cgo to store a bad pointer in
+	// the Go heap. It may also indicate a runtime
+	// bug.
+	//
+	// TODO(austin): We could be more aggressive
+	// and detect pointers to unallocated objects
+	// in allocated spans.
+	printlock()
+	print("runtime: pointer ", hex(p))
+	state := s.state.get()
+	if state != mSpanInUse {
+		print(" to unallocated span")
+	} else {
+		print(" to unused region of span")
+	}
+	print(" span.base()=", hex(s.base()), " span.limit=", hex(s.limit), " span.state=", state, "\n")
+	if refBase != 0 {
+		print("runtime: found in object at *(", hex(refBase), "+", hex(refOff), ")\n")
+		gcDumpObject("object", refBase, refOff)
+	}
+	getg().m.traceback = 2
+	throw("found bad pointer in Go heap (incorrect use of unsafe or cgo?)")
+}
+
 // findObject returns the base address for the heap object containing
 // the address p, the object's span, and the index of the object in s.
 // If p does not point into a heap object, it returns base == 0.
@@ -362,42 +393,30 @@
 // refBase and refOff optionally give the base address of the object
 // in which the pointer p was found and the byte offset at which it
 // was found. These are used for error reporting.
+//
+// It is nosplit so it is safe for p to be a pointer to the current goroutine's stack.
+// Since p is a uintptr, it would not be adjusted if the stack were to move.
+//go:nosplit
 func findObject(p, refBase, refOff uintptr, forStack bool) (base uintptr, s *mspan, objIndex uintptr) {
 	s = spanOf(p)
+	// If s is nil, the virtual address has never been part of the heap.
+	// This pointer may be to some mmap'd region, so we allow it.
+	if s == nil {
+		return
+	}
 	// If p is a bad pointer, it may not be in s's bounds.
-	if s == nil || p < s.base() || p >= s.limit || s.state != mSpanInUse {
-		if s == nil || s.state == mSpanManual || forStack {
-			// If s is nil, the virtual address has never been part of the heap.
-			// This pointer may be to some mmap'd region, so we allow it.
-			// Pointers into stacks are also ok, the runtime manages these explicitly.
+	//
+	// Check s.state to synchronize with span initialization
+	// before checking other fields. See also spanOfHeap.
+	if state := s.state.get(); state != mSpanInUse || p < s.base() || p >= s.limit {
+		// Pointers into stacks are also ok, the runtime manages these explicitly.
+		if state == mSpanManual || forStack {
 			return
 		}
-
 		// The following ensures that we are rigorous about what data
 		// structures hold valid pointers.
 		if debug.invalidptr != 0 {
-			// Typically this indicates an incorrect use
-			// of unsafe or cgo to store a bad pointer in
-			// the Go heap. It may also indicate a runtime
-			// bug.
-			//
-			// TODO(austin): We could be more aggressive
-			// and detect pointers to unallocated objects
-			// in allocated spans.
-			printlock()
-			print("runtime: pointer ", hex(p))
-			if s.state != mSpanInUse {
-				print(" to unallocated span")
-			} else {
-				print(" to unused region of span")
-			}
-			print(" span.base()=", hex(s.base()), " span.limit=", hex(s.limit), " span.state=", s.state, "\n")
-			if refBase != 0 {
-				print("runtime: found in object at *(", hex(refBase), "+", hex(refOff), ")\n")
-				gcDumpObject("object", refBase, refOff)
-			}
-			getg().m.traceback = 2
-			throw("found bad pointer in Go heap (incorrect use of unsafe or cgo?)")
+			badPointer(s, p, refBase, refOff)
 		}
 		return
 	}
@@ -629,7 +648,7 @@
 			}
 		}
 		return
-	} else if s.state != mSpanInUse || dst < s.base() || s.limit <= dst {
+	} else if s.state.get() != mSpanInUse || dst < s.base() || s.limit <= dst {
 		// dst was heap memory at some point, but isn't now.
 		// It can't be a global. It must be either our stack,
 		// or in the case of direct channel sends, it could be
@@ -801,29 +820,19 @@
 // words to pointer/scan.
 // Otherwise, it initializes all words to scalar/dead.
 func (h heapBits) initSpan(s *mspan) {
-	size, n, total := s.layout()
-
-	// Init the markbit structures
-	s.freeindex = 0
-	s.allocCache = ^uint64(0) // all 1s indicating all free.
-	s.nelems = n
-	s.allocBits = nil
-	s.gcmarkBits = nil
-	s.gcmarkBits = newMarkBits(s.nelems)
-	s.allocBits = newAllocBits(s.nelems)
-
 	// Clear bits corresponding to objects.
-	nw := total / sys.PtrSize
+	nw := (s.npages << _PageShift) / sys.PtrSize
 	if nw%wordsPerBitmapByte != 0 {
 		throw("initSpan: unaligned length")
 	}
 	if h.shift != 0 {
 		throw("initSpan: unaligned base")
 	}
+	isPtrs := sys.PtrSize == 8 && s.elemsize == sys.PtrSize
 	for nw > 0 {
 		hNext, anw := h.forwardOrBoundary(nw)
 		nbyte := anw / wordsPerBitmapByte
-		if sys.PtrSize == 8 && size == sys.PtrSize {
+		if isPtrs {
 			bitp := h.bitp
 			for i := uintptr(0); i < nbyte; i++ {
 				*bitp = bitPointerAll | bitScanAll
diff --git a/libgo/go/runtime/mcentral.go b/libgo/go/runtime/mcentral.go
index cd59010..78a3ae6 100644
--- a/libgo/go/runtime/mcentral.go
+++ b/libgo/go/runtime/mcentral.go
@@ -243,7 +243,7 @@
 
 	c.nonempty.remove(s)
 	unlock(&c.lock)
-	mheap_.freeSpan(s, false)
+	mheap_.freeSpan(s)
 	return true
 }
 
@@ -252,7 +252,7 @@
 	npages := uintptr(class_to_allocnpages[c.spanclass.sizeclass()])
 	size := uintptr(class_to_size[c.spanclass.sizeclass()])
 
-	s := mheap_.alloc(npages, c.spanclass, false, true)
+	s := mheap_.alloc(npages, c.spanclass, true)
 	if s == nil {
 		return nil
 	}
diff --git a/libgo/go/runtime/mgc.go b/libgo/go/runtime/mgc.go
index 46b7334..b0040f9 100644
--- a/libgo/go/runtime/mgc.go
+++ b/libgo/go/runtime/mgc.go
@@ -139,6 +139,10 @@
 	_ConcurrentSweep = true
 	_FinBlockSize    = 4 * 1024
 
+	// debugScanConservative enables debug logging for stack
+	// frames that are scanned conservatively.
+	debugScanConservative = false
+
 	// sweepMinHeapDistance is a lower bound on the heap distance
 	// (in bytes) reserved for concurrent sweeping between GC
 	// cycles.
@@ -231,6 +235,8 @@
 		gcSetTriggerRatio(memstats.triggerRatio)
 		unlock(&mheap_.lock)
 	})
+	// Pacing changed, so the scavenger should be awoken.
+	wakeScavenger()
 
 	// If we just disabled GC, wait for any concurrent GC mark to
 	// finish so we always return with no GC running.
@@ -490,25 +496,25 @@
 	}
 	live := atomic.Load64(&memstats.heap_live)
 
-	var heapGoal, scanWorkExpected int64
-	if live <= memstats.next_gc {
-		// We're under the soft goal. Pace GC to complete at
-		// next_gc assuming the heap is in steady-state.
-		heapGoal = int64(memstats.next_gc)
+	// Assume we're under the soft goal. Pace GC to complete at
+	// next_gc assuming the heap is in steady-state.
+	heapGoal := int64(memstats.next_gc)
 
-		// Compute the expected scan work remaining.
-		//
-		// This is estimated based on the expected
-		// steady-state scannable heap. For example, with
-		// GOGC=100, only half of the scannable heap is
-		// expected to be live, so that's what we target.
-		//
-		// (This is a float calculation to avoid overflowing on
-		// 100*heap_scan.)
-		scanWorkExpected = int64(float64(memstats.heap_scan) * 100 / float64(100+gcpercent))
-	} else {
-		// We're past the soft goal. Pace GC so that in the
-		// worst case it will complete by the hard goal.
+	// Compute the expected scan work remaining.
+	//
+	// This is estimated based on the expected
+	// steady-state scannable heap. For example, with
+	// GOGC=100, only half of the scannable heap is
+	// expected to be live, so that's what we target.
+	//
+	// (This is a float calculation to avoid overflowing on
+	// 100*heap_scan.)
+	scanWorkExpected := int64(float64(memstats.heap_scan) * 100 / float64(100+gcpercent))
+
+	if live > memstats.next_gc || c.scanWork > scanWorkExpected {
+		// We're past the soft goal, or we've already done more scan
+		// work than we expected. Pace GC so that in the worst case it
+		// will complete by the hard goal.
 		const maxOvershoot = 1.1
 		heapGoal = int64(float64(memstats.next_gc) * maxOvershoot)
 
@@ -520,7 +526,7 @@
 	//
 	// Note that we currently count allocations during GC as both
 	// scannable heap (heap_scan) and scan work completed
-	// (scanWork), so allocation will change this difference will
+	// (scanWork), so allocation will change this difference
 	// slowly in the soft regime and not at all in the hard
 	// regime.
 	scanWorkRemaining := scanWorkExpected - c.scanWork
@@ -765,11 +771,25 @@
 		goal = memstats.heap_marked + memstats.heap_marked*uint64(gcpercent)/100
 	}
 
+	// If we let triggerRatio go too low, then if the application
+	// is allocating very rapidly we might end up in a situation
+	// where we're allocating black during a nearly always-on GC.
+	// The result of this is a growing heap and ultimately an
+	// increase in RSS. By capping us at a point >0, we're essentially
+	// saying that we're OK using more CPU during the GC to prevent
+	// this growth in RSS.
+	//
+	// The current constant was chosen empirically: given a sufficiently
+	// fast/scalable allocator with 48 Ps that could drive the trigger ratio
+	// to <0.05, this constant causes applications to retain the same peak
+	// RSS compared to not having this allocator.
+	const minTriggerRatio = 0.6
+
 	// Set the trigger ratio, capped to reasonable bounds.
-	if triggerRatio < 0 {
+	if triggerRatio < minTriggerRatio {
 		// This can happen if the mutator is allocating very
 		// quickly or the GC is scanning very slowly.
-		triggerRatio = 0
+		triggerRatio = minTriggerRatio
 	} else if gcpercent >= 0 {
 		// Ensure there's always a little margin so that the
 		// mutator assist ratio isn't infinity.
@@ -847,7 +867,8 @@
 			heapDistance = _PageSize
 		}
 		pagesSwept := atomic.Load64(&mheap_.pagesSwept)
-		sweepDistancePages := int64(mheap_.pagesInUse) - int64(pagesSwept)
+		pagesInUse := atomic.Load64(&mheap_.pagesInUse)
+		sweepDistancePages := int64(pagesInUse) - int64(pagesSwept)
 		if sweepDistancePages <= 0 {
 			mheap_.sweepPagesPerByte = 0
 		} else {
@@ -1250,6 +1271,7 @@
 	}
 
 	// Ok, we're doing it! Stop everybody else
+	semacquire(&gcsema)
 	semacquire(&worldsema)
 
 	if trace.enabled {
@@ -1348,6 +1370,13 @@
 		work.pauseNS += now - work.pauseStart
 		work.tMark = now
 	})
+
+	// Release the world sema before Gosched() in STW mode
+	// because we will need to reacquire it later but before
+	// this goroutine becomes runnable again, and we could
+	// self-deadlock otherwise.
+	semrelease(&worldsema)
+
 	// In STW mode, we could block the instant systemstack
 	// returns, so don't do anything important here. Make sure we
 	// block rather than returning to user code.
@@ -1417,6 +1446,10 @@
 		return
 	}
 
+	// forEachP needs worldsema to execute, and we'll need it to
+	// stop the world later, so acquire worldsema now.
+	semacquire(&worldsema)
+
 	// Flush all local buffers and collect flushedWork flags.
 	gcMarkDoneFlushed = 0
 	systemstack(func() {
@@ -1477,6 +1510,7 @@
 		// work to do. Keep going. It's possible the
 		// transition condition became true again during the
 		// ragged barrier, so re-check it.
+		semrelease(&worldsema)
 		goto top
 	}
 
@@ -1553,6 +1587,7 @@
 				now := startTheWorldWithSema(true)
 				work.pauseNS += now - work.pauseStart
 			})
+			semrelease(&worldsema)
 			goto top
 		}
 	}
@@ -1651,9 +1686,16 @@
 		throw("gc done but gcphase != _GCoff")
 	}
 
+	// Record next_gc and heap_inuse for scavenger.
+	memstats.last_next_gc = memstats.next_gc
+	memstats.last_heap_inuse = memstats.heap_inuse
+
 	// Update GC trigger and pacing for the next cycle.
 	gcSetTriggerRatio(nextTriggerRatio)
 
+	// Pacing changed, so the scavenger should be awoken.
+	wakeScavenger()
+
 	// Update timing memstats
 	now := nanotime()
 	sec, nsec, _ := time_now()
@@ -1760,6 +1802,7 @@
 	}
 
 	semrelease(&worldsema)
+	semrelease(&gcsema)
 	// Careful: another GC cycle may start now.
 
 	releasem(mp)
@@ -2152,8 +2195,7 @@
 	// allgs doesn't change.
 	lock(&allglock)
 	for _, gp := range allgs {
-		gp.gcscandone = false  // set to true in gcphasework
-		gp.gcscanvalid = false // stack has not been scanned
+		gp.gcscandone = false // set to true in gcphasework
 		gp.gcAssistBytes = 0
 	}
 	unlock(&allglock)
diff --git a/libgo/go/runtime/mgc_gccgo.go b/libgo/go/runtime/mgc_gccgo.go
index d7ae260..21539eb 100644
--- a/libgo/go/runtime/mgc_gccgo.go
+++ b/libgo/go/runtime/mgc_gccgo.go
@@ -145,40 +145,15 @@
 // and carries on.
 func checkPreempt() {
 	gp := getg()
-	if !gp.preempt || gp != gp.m.curg || gp.m.locks != 0 || gp.m.mallocing != 0 || gp.m.preemptoff != "" || gp.m.incgo {
+	if !gp.preempt || gp != gp.m.curg || !canPreemptM(gp.m) {
 		return
 	}
 
-	// Synchronize with scang.
-	gp.scanningself = true
-	casgstatus(gp, _Grunning, _Gwaiting)
-	if gp.preemptscan {
-		for !castogscanstatus(gp, _Gwaiting, _Gscanwaiting) {
-			// Likely to be racing with the GC as
-			// it sees a _Gwaiting and does the
-			// stack scan. If so, gcworkdone will
-			// be set and gcphasework will simply
-			// return.
-		}
-		if !gp.gcscandone {
-			mp := acquirem()
-			gcw := &gp.m.p.ptr().gcw
-			scanstack(gp, gcw)
-			releasem(mp)
-			gp.gcscandone = true
-		}
-		gp.preemptscan = false
-		gp.preempt = false
-		casfrom_Gscanstatus(gp, _Gscanwaiting, _Gwaiting)
-		// This clears gcscanvalid.
-		casgstatus(gp, _Gwaiting, _Grunning)
-		gp.scanningself = false
-		return
+	if gp.preemptStop {
+		mcall(preemptPark)
 	}
 
 	// Act like goroutine called runtime.Gosched.
-	casgstatus(gp, _Gwaiting, _Grunning)
-	gp.scanningself = false
 	mcall(gopreempt_m)
 }
 
diff --git a/libgo/go/runtime/mgclarge.go b/libgo/go/runtime/mgclarge.go
deleted file mode 100644
index 414db10..0000000
--- a/libgo/go/runtime/mgclarge.go
+++ /dev/null
@@ -1,657 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Page heap.
-//
-// See malloc.go for the general overview.
-//
-// Allocation policy is the subject of this file. All free spans live in
-// a treap for most of their time being free. See
-// https://en.wikipedia.org/wiki/Treap or
-// https://faculty.washington.edu/aragon/pubs/rst89.pdf for an overview.
-// sema.go also holds an implementation of a treap.
-//
-// Each treapNode holds a single span. The treap is sorted by base address
-// and each span necessarily has a unique base address.
-// Spans are returned based on a first-fit algorithm, acquiring the span
-// with the lowest base address which still satisfies the request.
-//
-// The first-fit algorithm is possible due to an augmentation of each
-// treapNode to maintain the size of the largest span in the subtree rooted
-// at that treapNode. Below we refer to this invariant as the maxPages
-// invariant.
-//
-// The primary routines are
-// insert: adds a span to the treap
-// remove: removes the span from that treap that best fits the required size
-// removeSpan: which removes a specific span from the treap
-//
-// Whenever a pointer to a span which is owned by the treap is acquired, that
-// span must not be mutated. To mutate a span in the treap, remove it first.
-//
-// mheap_.lock must be held when manipulating this data structure.
-
-package runtime
-
-import (
-	"unsafe"
-)
-
-//go:notinheap
-type mTreap struct {
-	treap           *treapNode
-	unscavHugePages uintptr // number of unscavenged huge pages in the treap
-}
-
-//go:notinheap
-type treapNode struct {
-	right    *treapNode      // all treapNodes > this treap node
-	left     *treapNode      // all treapNodes < this treap node
-	parent   *treapNode      // direct parent of this node, nil if root
-	key      uintptr         // base address of the span, used as primary sort key
-	span     *mspan          // span at base address key
-	maxPages uintptr         // the maximum size of any span in this subtree, including the root
-	priority uint32          // random number used by treap algorithm to keep tree probabilistically balanced
-	types    treapIterFilter // the types of spans available in this subtree
-}
-
-// updateInvariants is a helper method which has a node recompute its own
-// maxPages and types values by looking at its own span as well as the
-// values of its direct children.
-//
-// Returns true if anything changed.
-func (t *treapNode) updateInvariants() bool {
-	m, i := t.maxPages, t.types
-	t.maxPages = t.span.npages
-	t.types = t.span.treapFilter()
-	if t.left != nil {
-		t.types |= t.left.types
-		if t.maxPages < t.left.maxPages {
-			t.maxPages = t.left.maxPages
-		}
-	}
-	if t.right != nil {
-		t.types |= t.right.types
-		if t.maxPages < t.right.maxPages {
-			t.maxPages = t.right.maxPages
-		}
-	}
-	return m != t.maxPages || i != t.types
-}
-
-// findMinimal finds the minimal (lowest base addressed) node in the treap
-// which matches the criteria set out by the filter f and returns nil if
-// none exists.
-//
-// This algorithm is functionally the same as (*mTreap).find, so see that
-// method for more details.
-func (t *treapNode) findMinimal(f treapIterFilter) *treapNode {
-	if t == nil || !f.matches(t.types) {
-		return nil
-	}
-	for t != nil {
-		if t.left != nil && f.matches(t.left.types) {
-			t = t.left
-		} else if f.matches(t.span.treapFilter()) {
-			break
-		} else if t.right != nil && f.matches(t.right.types) {
-			t = t.right
-		} else {
-			println("runtime: f=", f)
-			throw("failed to find minimal node matching filter")
-		}
-	}
-	return t
-}
-
-// findMaximal finds the maximal (highest base addressed) node in the treap
-// which matches the criteria set out by the filter f and returns nil if
-// none exists.
-//
-// This algorithm is the logical inversion of findMinimal and just changes
-// the order of the left and right tests.
-func (t *treapNode) findMaximal(f treapIterFilter) *treapNode {
-	if t == nil || !f.matches(t.types) {
-		return nil
-	}
-	for t != nil {
-		if t.right != nil && f.matches(t.right.types) {
-			t = t.right
-		} else if f.matches(t.span.treapFilter()) {
-			break
-		} else if t.left != nil && f.matches(t.left.types) {
-			t = t.left
-		} else {
-			println("runtime: f=", f)
-			throw("failed to find minimal node matching filter")
-		}
-	}
-	return t
-}
-
-// pred returns the predecessor of t in the treap subject to the criteria
-// specified by the filter f. Returns nil if no such predecessor exists.
-func (t *treapNode) pred(f treapIterFilter) *treapNode {
-	if t.left != nil && f.matches(t.left.types) {
-		// The node has a left subtree which contains at least one matching
-		// node, find the maximal matching node in that subtree.
-		return t.left.findMaximal(f)
-	}
-	// Lacking a left subtree, look to the parents.
-	p := t // previous node
-	t = t.parent
-	for t != nil {
-		// Walk up the tree until we find a node that has a left subtree
-		// that we haven't already visited.
-		if t.right == p {
-			if f.matches(t.span.treapFilter()) {
-				// If this node matches, then it's guaranteed to be the
-				// predecessor since everything to its left is strictly
-				// greater.
-				return t
-			} else if t.left != nil && f.matches(t.left.types) {
-				// Failing the root of this subtree, if its left subtree has
-				// something, that's where we'll find our predecessor.
-				return t.left.findMaximal(f)
-			}
-		}
-		p = t
-		t = t.parent
-	}
-	// If the parent is nil, then we've hit the root without finding
-	// a suitable left subtree containing the node (and the predecessor
-	// wasn't on the path). Thus, there's no predecessor, so just return
-	// nil.
-	return nil
-}
-
-// succ returns the successor of t in the treap subject to the criteria
-// specified by the filter f. Returns nil if no such successor exists.
-func (t *treapNode) succ(f treapIterFilter) *treapNode {
-	// See pred. This method is just the logical inversion of it.
-	if t.right != nil && f.matches(t.right.types) {
-		return t.right.findMinimal(f)
-	}
-	p := t
-	t = t.parent
-	for t != nil {
-		if t.left == p {
-			if f.matches(t.span.treapFilter()) {
-				return t
-			} else if t.right != nil && f.matches(t.right.types) {
-				return t.right.findMinimal(f)
-			}
-		}
-		p = t
-		t = t.parent
-	}
-	return nil
-}
-
-// isSpanInTreap is handy for debugging. One should hold the heap lock, usually
-// mheap_.lock().
-func (t *treapNode) isSpanInTreap(s *mspan) bool {
-	if t == nil {
-		return false
-	}
-	return t.span == s || t.left.isSpanInTreap(s) || t.right.isSpanInTreap(s)
-}
-
-// walkTreap is handy for debugging and testing.
-// Starting at some treapnode t, for example the root, do a depth first preorder walk of
-// the tree executing fn at each treap node. One should hold the heap lock, usually
-// mheap_.lock().
-func (t *treapNode) walkTreap(fn func(tn *treapNode)) {
-	if t == nil {
-		return
-	}
-	fn(t)
-	t.left.walkTreap(fn)
-	t.right.walkTreap(fn)
-}
-
-// checkTreapNode when used in conjunction with walkTreap can usually detect a
-// poorly formed treap.
-func checkTreapNode(t *treapNode) {
-	if t == nil {
-		return
-	}
-	if t.span.next != nil || t.span.prev != nil || t.span.list != nil {
-		throw("span may be on an mSpanList while simultaneously in the treap")
-	}
-	if t.span.base() != t.key {
-		println("runtime: checkTreapNode treapNode t=", t, "     t.key=", t.key,
-			"t.span.base()=", t.span.base())
-		throw("why does span.base() and treap.key do not match?")
-	}
-	if t.left != nil && t.key < t.left.key {
-		throw("found out-of-order spans in treap (left child has greater base address)")
-	}
-	if t.right != nil && t.key > t.right.key {
-		throw("found out-of-order spans in treap (right child has lesser base address)")
-	}
-}
-
-// validateInvariants is handy for debugging and testing.
-// It ensures that the various invariants on each treap node are
-// appropriately maintained throughout the treap by walking the
-// treap in a post-order manner.
-func (t *treapNode) validateInvariants() (uintptr, treapIterFilter) {
-	if t == nil {
-		return 0, 0
-	}
-	leftMax, leftTypes := t.left.validateInvariants()
-	rightMax, rightTypes := t.right.validateInvariants()
-	max := t.span.npages
-	if leftMax > max {
-		max = leftMax
-	}
-	if rightMax > max {
-		max = rightMax
-	}
-	if max != t.maxPages {
-		println("runtime: t.maxPages=", t.maxPages, "want=", max)
-		throw("maxPages invariant violated in treap")
-	}
-	typ := t.span.treapFilter() | leftTypes | rightTypes
-	if typ != t.types {
-		println("runtime: t.types=", t.types, "want=", typ)
-		throw("types invariant violated in treap")
-	}
-	return max, typ
-}
-
-// treapIterType represents the type of iteration to perform
-// over the treap. Each different flag is represented by a bit
-// in the type, and types may be combined together by a bitwise
-// or operation.
-//
-// Note that only 5 bits are available for treapIterType, do not
-// use the 3 higher-order bits. This constraint is to allow for
-// expansion into a treapIterFilter, which is a uint32.
-type treapIterType uint8
-
-const (
-	treapIterScav treapIterType = 1 << iota // scavenged spans
-	treapIterHuge                           // spans containing at least one huge page
-	treapIterBits = iota
-)
-
-// treapIterFilter is a bitwise filter of different spans by binary
-// properties. Each bit of a treapIterFilter represents a unique
-// combination of bits set in a treapIterType, in other words, it
-// represents the power set of a treapIterType.
-//
-// The purpose of this representation is to allow the existence of
-// a specific span type to bubble up in the treap (see the types
-// field on treapNode).
-//
-// More specifically, any treapIterType may be transformed into a
-// treapIterFilter for a specific combination of flags via the
-// following operation: 1 << (0x1f&treapIterType).
-type treapIterFilter uint32
-
-// treapFilterAll represents the filter which allows all spans.
-const treapFilterAll = ^treapIterFilter(0)
-
-// treapFilter creates a new treapIterFilter from two treapIterTypes.
-// mask represents a bitmask for which flags we should check against
-// and match for the expected result after applying the mask.
-func treapFilter(mask, match treapIterType) treapIterFilter {
-	allow := treapIterFilter(0)
-	for i := treapIterType(0); i < 1<<treapIterBits; i++ {
-		if mask&i == match {
-			allow |= 1 << i
-		}
-	}
-	return allow
-}
-
-// matches returns true if m and f intersect.
-func (f treapIterFilter) matches(m treapIterFilter) bool {
-	return f&m != 0
-}
-
-// treapFilter returns the treapIterFilter exactly matching this span,
-// i.e. popcount(result) == 1.
-func (s *mspan) treapFilter() treapIterFilter {
-	have := treapIterType(0)
-	if s.scavenged {
-		have |= treapIterScav
-	}
-	if s.hugePages() > 0 {
-		have |= treapIterHuge
-	}
-	return treapIterFilter(uint32(1) << (0x1f & have))
-}
-
-// treapIter is a bidirectional iterator type which may be used to iterate over a
-// an mTreap in-order forwards (increasing order) or backwards (decreasing order).
-// Its purpose is to hide details about the treap from users when trying to iterate
-// over it.
-//
-// To create iterators over the treap, call start or end on an mTreap.
-type treapIter struct {
-	f treapIterFilter
-	t *treapNode
-}
-
-// span returns the span at the current position in the treap.
-// If the treap is not valid, span will panic.
-func (i *treapIter) span() *mspan {
-	return i.t.span
-}
-
-// valid returns whether the iterator represents a valid position
-// in the mTreap.
-func (i *treapIter) valid() bool {
-	return i.t != nil
-}
-
-// next moves the iterator forward by one. Once the iterator
-// ceases to be valid, calling next will panic.
-func (i treapIter) next() treapIter {
-	i.t = i.t.succ(i.f)
-	return i
-}
-
-// prev moves the iterator backwards by one. Once the iterator
-// ceases to be valid, calling prev will panic.
-func (i treapIter) prev() treapIter {
-	i.t = i.t.pred(i.f)
-	return i
-}
-
-// start returns an iterator which points to the start of the treap (the
-// left-most node in the treap) subject to mask and match constraints.
-func (root *mTreap) start(mask, match treapIterType) treapIter {
-	f := treapFilter(mask, match)
-	return treapIter{f, root.treap.findMinimal(f)}
-}
-
-// end returns an iterator which points to the end of the treap (the
-// right-most node in the treap) subject to mask and match constraints.
-func (root *mTreap) end(mask, match treapIterType) treapIter {
-	f := treapFilter(mask, match)
-	return treapIter{f, root.treap.findMaximal(f)}
-}
-
-// mutate allows one to mutate the span without removing it from the treap via a
-// callback. The span's base and size are allowed to change as long as the span
-// remains in the same order relative to its predecessor and successor.
-//
-// Note however that any operation that causes a treap rebalancing inside of fn
-// is strictly forbidden, as that may cause treap node metadata to go
-// out-of-sync.
-func (root *mTreap) mutate(i treapIter, fn func(span *mspan)) {
-	s := i.span()
-	// Save some state about the span for later inspection.
-	hpages := s.hugePages()
-	scavenged := s.scavenged
-	// Call the mutator.
-	fn(s)
-	// Update unscavHugePages appropriately.
-	if !scavenged {
-		mheap_.free.unscavHugePages -= hpages
-	}
-	if !s.scavenged {
-		mheap_.free.unscavHugePages += s.hugePages()
-	}
-	// Update the key in case the base changed.
-	i.t.key = s.base()
-	// Updating invariants up the tree needs to happen if
-	// anything changed at all, so just go ahead and do it
-	// unconditionally.
-	//
-	// If it turns out nothing changed, it'll exit quickly.
-	t := i.t
-	for t != nil && t.updateInvariants() {
-		t = t.parent
-	}
-}
-
-// insert adds span to the large span treap.
-func (root *mTreap) insert(span *mspan) {
-	if !span.scavenged {
-		root.unscavHugePages += span.hugePages()
-	}
-	base := span.base()
-	var last *treapNode
-	pt := &root.treap
-	for t := *pt; t != nil; t = *pt {
-		last = t
-		if t.key < base {
-			pt = &t.right
-		} else if t.key > base {
-			pt = &t.left
-		} else {
-			throw("inserting span already in treap")
-		}
-	}
-
-	// Add t as new leaf in tree of span size and unique addrs.
-	// The balanced tree is a treap using priority as the random heap priority.
-	// That is, it is a binary tree ordered according to the key,
-	// but then among the space of possible binary trees respecting those
-	// keys, it is kept balanced on average by maintaining a heap ordering
-	// on the priority: s.priority <= both s.right.priority and s.right.priority.
-	// https://en.wikipedia.org/wiki/Treap
-	// https://faculty.washington.edu/aragon/pubs/rst89.pdf
-
-	t := (*treapNode)(mheap_.treapalloc.alloc())
-	t.key = span.base()
-	t.priority = fastrand()
-	t.span = span
-	t.maxPages = span.npages
-	t.types = span.treapFilter()
-	t.parent = last
-	*pt = t // t now at a leaf.
-
-	// Update the tree to maintain the various invariants.
-	i := t
-	for i.parent != nil && i.parent.updateInvariants() {
-		i = i.parent
-	}
-
-	// Rotate up into tree according to priority.
-	for t.parent != nil && t.parent.priority > t.priority {
-		if t != nil && t.span.base() != t.key {
-			println("runtime: insert t=", t, "t.key=", t.key)
-			println("runtime:      t.span=", t.span, "t.span.base()=", t.span.base())
-			throw("span and treap node base addresses do not match")
-		}
-		if t.parent.left == t {
-			root.rotateRight(t.parent)
-		} else {
-			if t.parent.right != t {
-				throw("treap insert finds a broken treap")
-			}
-			root.rotateLeft(t.parent)
-		}
-	}
-}
-
-func (root *mTreap) removeNode(t *treapNode) {
-	if !t.span.scavenged {
-		root.unscavHugePages -= t.span.hugePages()
-	}
-	if t.span.base() != t.key {
-		throw("span and treap node base addresses do not match")
-	}
-	// Rotate t down to be leaf of tree for removal, respecting priorities.
-	for t.right != nil || t.left != nil {
-		if t.right == nil || t.left != nil && t.left.priority < t.right.priority {
-			root.rotateRight(t)
-		} else {
-			root.rotateLeft(t)
-		}
-	}
-	// Remove t, now a leaf.
-	if t.parent != nil {
-		p := t.parent
-		if p.left == t {
-			p.left = nil
-		} else {
-			p.right = nil
-		}
-		// Walk up the tree updating invariants until no updates occur.
-		for p != nil && p.updateInvariants() {
-			p = p.parent
-		}
-	} else {
-		root.treap = nil
-	}
-	// Return the found treapNode's span after freeing the treapNode.
-	mheap_.treapalloc.free(unsafe.Pointer(t))
-}
-
-// find searches for, finds, and returns the treap iterator over all spans
-// representing the position of the span with the smallest base address which is
-// at least npages in size. If no span has at least npages it returns an invalid
-// iterator.
-//
-// This algorithm is as follows:
-// * If there's a left child and its subtree can satisfy this allocation,
-//   continue down that subtree.
-// * If there's no such left child, check if the root of this subtree can
-//   satisfy the allocation. If so, we're done.
-// * If the root cannot satisfy the allocation either, continue down the
-//   right subtree if able.
-// * Else, break and report that we cannot satisfy the allocation.
-//
-// The preference for left, then current, then right, results in us getting
-// the left-most node which will contain the span with the lowest base
-// address.
-//
-// Note that if a request cannot be satisfied the fourth case will be
-// reached immediately at the root, since neither the left subtree nor
-// the right subtree will have a sufficient maxPages, whilst the root
-// node is also unable to satisfy it.
-func (root *mTreap) find(npages uintptr) treapIter {
-	t := root.treap
-	for t != nil {
-		if t.span == nil {
-			throw("treap node with nil span found")
-		}
-		// Iterate over the treap trying to go as far left
-		// as possible while simultaneously ensuring that the
-		// subtrees we choose always have a span which can
-		// satisfy the allocation.
-		if t.left != nil && t.left.maxPages >= npages {
-			t = t.left
-		} else if t.span.npages >= npages {
-			// Before going right, if this span can satisfy the
-			// request, stop here.
-			break
-		} else if t.right != nil && t.right.maxPages >= npages {
-			t = t.right
-		} else {
-			t = nil
-		}
-	}
-	return treapIter{treapFilterAll, t}
-}
-
-// removeSpan searches for, finds, deletes span along with
-// the associated treap node. If the span is not in the treap
-// then t will eventually be set to nil and the t.span
-// will throw.
-func (root *mTreap) removeSpan(span *mspan) {
-	base := span.base()
-	t := root.treap
-	for t.span != span {
-		if t.key < base {
-			t = t.right
-		} else if t.key > base {
-			t = t.left
-		}
-	}
-	root.removeNode(t)
-}
-
-// erase removes the element referred to by the current position of the
-// iterator. This operation consumes the given iterator, so it should no
-// longer be used. It is up to the caller to get the next or previous
-// iterator before calling erase, if need be.
-func (root *mTreap) erase(i treapIter) {
-	root.removeNode(i.t)
-}
-
-// rotateLeft rotates the tree rooted at node x.
-// turning (x a (y b c)) into (y (x a b) c).
-func (root *mTreap) rotateLeft(x *treapNode) {
-	// p -> (x a (y b c))
-	p := x.parent
-	a, y := x.left, x.right
-	b, c := y.left, y.right
-
-	y.left = x
-	x.parent = y
-	y.right = c
-	if c != nil {
-		c.parent = y
-	}
-	x.left = a
-	if a != nil {
-		a.parent = x
-	}
-	x.right = b
-	if b != nil {
-		b.parent = x
-	}
-
-	y.parent = p
-	if p == nil {
-		root.treap = y
-	} else if p.left == x {
-		p.left = y
-	} else {
-		if p.right != x {
-			throw("large span treap rotateLeft")
-		}
-		p.right = y
-	}
-
-	x.updateInvariants()
-	y.updateInvariants()
-}
-
-// rotateRight rotates the tree rooted at node y.
-// turning (y (x a b) c) into (x a (y b c)).
-func (root *mTreap) rotateRight(y *treapNode) {
-	// p -> (y (x a b) c)
-	p := y.parent
-	x, c := y.left, y.right
-	a, b := x.left, x.right
-
-	x.left = a
-	if a != nil {
-		a.parent = x
-	}
-	x.right = y
-	y.parent = x
-	y.left = b
-	if b != nil {
-		b.parent = y
-	}
-	y.right = c
-	if c != nil {
-		c.parent = y
-	}
-
-	x.parent = p
-	if p == nil {
-		root.treap = x
-	} else if p.left == y {
-		p.left = x
-	} else {
-		if p.right != y {
-			throw("large span treap rotateRight")
-		}
-		p.right = x
-	}
-
-	y.updateInvariants()
-	x.updateInvariants()
-}
diff --git a/libgo/go/runtime/mgcmark.go b/libgo/go/runtime/mgcmark.go
index b6b69dd..a5af5d2 100644
--- a/libgo/go/runtime/mgcmark.go
+++ b/libgo/go/runtime/mgcmark.go
@@ -46,8 +46,6 @@
 // gcMarkRootPrepare queues root scanning jobs (stacks, globals, and
 // some miscellany) and initializes scanning-related state.
 //
-// The caller must have call gcCopySpans().
-//
 // The world must be stopped.
 //
 //go:nowritebarrier
@@ -111,8 +109,7 @@
 fail:
 	println("gp", gp, "goid", gp.goid,
 		"status", readgstatus(gp),
-		"gcscandone", gp.gcscandone,
-		"gcscanvalid", gp.gcscanvalid)
+		"gcscandone", gp.gcscandone)
 	unlock(&allglock) // Avoid self-deadlock with traceback.
 	throw("scan missed a g")
 }
@@ -182,7 +179,7 @@
 			gp.waitsince = work.tstart
 		}
 
-		// scang must be done on the system stack in case
+		// scanstack must be done on the system stack in case
 		// we're trying to scan our own stack.
 		systemstack(func() {
 			// If this is a self-scan, put the user G in
@@ -196,14 +193,24 @@
 				userG.waitreason = waitReasonGarbageCollectionScan
 			}
 
-			// TODO: scang blocks until gp's stack has
-			// been scanned, which may take a while for
+			// TODO: suspendG blocks (and spins) until gp
+			// stops, which may take a while for
 			// running goroutines. Consider doing this in
 			// two phases where the first is non-blocking:
 			// we scan the stacks we can and ask running
 			// goroutines to scan themselves; and the
 			// second blocks.
-			scang(gp, gcw)
+			stopped := suspendG(gp)
+			if stopped.dead {
+				gp.gcscandone = true
+				return
+			}
+			if gp.gcscandone {
+				throw("g already scanned")
+			}
+			scanstack(gp, gcw)
+			gp.gcscandone = true
+			resumeG(stopped)
 
 			if selfScan {
 				casgstatus(userG, _Gwaiting, _Grunning)
@@ -242,13 +249,21 @@
 	sg := mheap_.sweepgen
 	spans := mheap_.sweepSpans[mheap_.sweepgen/2%2].block(shard)
 	// Note that work.spans may not include spans that were
-	// allocated between entering the scan phase and now. This is
-	// okay because any objects with finalizers in those spans
-	// must have been allocated and given finalizers after we
-	// entered the scan phase, so addfinalizer will have ensured
-	// the above invariants for them.
-	for _, s := range spans {
-		if s.state != mSpanInUse {
+	// allocated between entering the scan phase and now. We may
+	// also race with spans being added into sweepSpans when they're
+	// just created, and as a result we may see nil pointers in the
+	// spans slice. This is okay because any objects with finalizers
+	// in those spans must have been allocated and given finalizers
+	// after we entered the scan phase, so addfinalizer will have
+	// ensured the above invariants for them.
+	for i := 0; i < len(spans); i++ {
+		// sweepBuf.block requires that we read pointers from the block atomically.
+		// It also requires that we ignore nil pointers.
+		s := (*mspan)(atomic.Loadp(unsafe.Pointer(&spans[i])))
+
+		// This is racing with spans being initialized, so
+		// check the state carefully.
+		if s == nil || s.state.get() != mSpanInUse {
 			continue
 		}
 		// Check that this span was swept (it may be cached or uncached).
@@ -600,16 +615,16 @@
 
 // scanstack scans gp's stack, greying all pointers found on the stack.
 //
+// scanstack will also shrink the stack if it is safe to do so. If it
+// is not, it schedules a stack shrink for the next synchronous safe
+// point.
+//
 // scanstack is marked go:systemstack because it must not be preempted
 // while using a workbuf.
 //
 //go:nowritebarrier
 //go:systemstack
 func scanstack(gp *g, gcw *gcWork) {
-	if gp.gcscanvalid {
-		return
-	}
-
 	if readgstatus(gp)&_Gscan == 0 {
 		print("runtime:scanstack: gp=", gp, ", goid=", gp.goid, ", gp->atomicstatus=", hex(readgstatus(gp)), "\n")
 		throw("scanstack - bad status")
@@ -622,17 +637,9 @@
 	case _Gdead:
 		return
 	case _Grunning:
-		// ok for gccgo, though not for gc.
-		if usestackmaps {
-			print("runtime: gp=", gp, ", goid=", gp.goid, ", gp->atomicstatus=", readgstatus(gp), "\n")
-			throw("scanstack: goroutine not stopped")
-		}
-	case _Gsyscall:
-		if usestackmaps {
-			print("runtime: gp=", gp, ", goid=", gp.goid, ", gp->atomicstatus=", readgstatus(gp), "\n")
-			throw("scanstack: goroutine in syscall")
-		}
-	case _Grunnable, _Gwaiting:
+		print("runtime: gp=", gp, ", goid=", gp.goid, ", gp->atomicstatus=", readgstatus(gp), "\n")
+		throw("scanstack: goroutine not stopped")
+	case _Grunnable, _Gsyscall, _Gwaiting:
 		// ok
 	}
 
@@ -644,6 +651,8 @@
 			doscanstack(gp, gcw)
 		} else if gp.entry != nil {
 			// This is a newly created g that hasn't run. No stack to scan.
+		} else if readgstatus(gp)&^_Gscan == _Gsyscall {
+			scanSyscallStack(gp, gcw)
 		} else {
 			// Scanning another g's stack. We need to switch to that g
 			// to unwind its stack. And switch back after scan.
@@ -661,8 +670,6 @@
 	// This is necessary as it uses stack objects (a.k.a. stack tracing).
 	// We don't (yet) do stack objects, and regular stack/heap scan
 	// will take care of defer records just fine.
-
-	gp.gcscanvalid = true
 }
 
 // scanstackswitch scans gp's stack by switching (gogo) to gp and
@@ -700,6 +707,38 @@
 	releasem(mp)
 }
 
+// scanSyscallStack scans the stack of a goroutine blocked in a
+// syscall by waking it up and asking it to scan its own stack.
+func scanSyscallStack(gp *g, gcw *gcWork) {
+	if gp.scanningself {
+		// We've suspended the goroutine by setting the _Gscan bit,
+		// so this shouldn't be possible.
+		throw("scanSyscallStack: scanningself")
+	}
+	if gp.gcscandone {
+		// We've suspended the goroutine by setting the _Gscan bit,
+		// so this shouldn't be possible.
+
+		throw("scanSyscallStack: gcscandone")
+	}
+
+	gp.gcScannedSyscallStack = false
+	for {
+		mp := gp.m
+		noteclear(&mp.scannote)
+		gp.scangcw = uintptr(unsafe.Pointer(gcw))
+		tgkill(getpid(), _pid_t(mp.procid), _SIGURG)
+		// Wait for gp to scan its own stack.
+		notesleep(&mp.scannote)
+		if gp.gcScannedSyscallStack {
+			return
+		}
+
+		// The signal was delivered at a bad time.  Try again.
+		osyield()
+	}
+}
+
 type gcDrainFlags int
 
 const (
@@ -1087,10 +1126,10 @@
 				if obj != 0 {
 					o, span, objIndex := findObject(obj, b, i, false)
 					if obj < minPhysPageSize ||
-						span != nil && span.state != mSpanManual &&
-							(obj < span.base() || obj >= span.limit || span.state != mSpanInUse) {
+						span != nil && span.state.get() != mSpanManual &&
+							(obj < span.base() || obj >= span.limit || span.state.get() != mSpanInUse) {
 						print("runtime: found in object at *(", hex(b), "+", hex(i), ") = ", hex(obj), ", pc=", hex(pc), "\n")
-						name, file, line, _ := funcfileline(pc, -1)
+						name, file, line, _ := funcfileline(pc, -1, false)
 						print(name, "\n", file, ":", line, "\n")
 						//gcDumpObject("object", b, i)
 						throw("found bad pointer in Go stack (incorrect use of unsafe or cgo?)")
@@ -1218,15 +1257,15 @@
 		return
 	}
 	print(" s.base()=", hex(s.base()), " s.limit=", hex(s.limit), " s.spanclass=", s.spanclass, " s.elemsize=", s.elemsize, " s.state=")
-	if 0 <= s.state && int(s.state) < len(mSpanStateNames) {
-		print(mSpanStateNames[s.state], "\n")
+	if state := s.state.get(); 0 <= state && int(state) < len(mSpanStateNames) {
+		print(mSpanStateNames[state], "\n")
 	} else {
-		print("unknown(", s.state, ")\n")
+		print("unknown(", state, ")\n")
 	}
 
 	skipped := false
 	size := s.elemsize
-	if s.state == mSpanManual && size == 0 {
+	if s.state.get() == mSpanManual && size == 0 {
 		// We're printing something from a stack frame. We
 		// don't know how big it is, so just show up to an
 		// including off.
@@ -1314,7 +1353,7 @@
 func initCheckmarks() {
 	useCheckmark = true
 	for _, s := range mheap_.allspans {
-		if s.state == mSpanInUse {
+		if s.state.get() == mSpanInUse {
 			heapBitsForAddr(s.base()).initCheckmarkSpan(s.layout())
 		}
 	}
@@ -1323,7 +1362,7 @@
 func clearCheckmarks() {
 	useCheckmark = false
 	for _, s := range mheap_.allspans {
-		if s.state == mSpanInUse {
+		if s.state.get() == mSpanInUse {
 			heapBitsForAddr(s.base()).clearCheckmarkSpan(s.layout())
 		}
 	}
diff --git a/libgo/go/runtime/mgcscavenge.go b/libgo/go/runtime/mgcscavenge.go
index 9f8c472..f3856db 100644
--- a/libgo/go/runtime/mgcscavenge.go
+++ b/libgo/go/runtime/mgcscavenge.go
@@ -17,7 +17,29 @@
 // scavenger's primary goal is to bring the estimated heap RSS of the
 // application down to a goal.
 //
-// That goal is defined as (retainExtraPercent+100) / 100 * next_gc.
+// That goal is defined as:
+//   (retainExtraPercent+100) / 100 * (next_gc / last_next_gc) * last_heap_inuse
+//
+// Essentially, we wish to have the application's RSS track the heap goal, but
+// the heap goal is defined in terms of bytes of objects, rather than pages like
+// RSS. As a result, we need to take into account for fragmentation internal to
+// spans. next_gc / last_next_gc defines the ratio between the current heap goal
+// and the last heap goal, which tells us by how much the heap is growing and
+// shrinking. We estimate what the heap will grow to in terms of pages by taking
+// this ratio and multiplying it by heap_inuse at the end of the last GC, which
+// allows us to account for this additional fragmentation. Note that this
+// procedure makes the assumption that the degree of fragmentation won't change
+// dramatically over the next GC cycle. Overestimating the amount of
+// fragmentation simply results in higher memory use, which will be accounted
+// for by the next pacing up date. Underestimating the fragmentation however
+// could lead to performance degradation. Handling this case is not within the
+// scope of the scavenger. Situations where the amount of fragmentation balloons
+// over the course of a single GC cycle should be considered pathologies,
+// flagged as bugs, and fixed appropriately.
+//
+// An additional factor of retainExtraPercent is added as a buffer to help ensure
+// that there's more unscavenged memory to allocate out of, since each allocation
+// out of scavenged memory incurs a potentially expensive page fault.
 //
 // The goal is updated after each GC and the scavenger's pacing parameters
 // (which live in mheap_) are updated to match. The pacing parameters work much
@@ -33,25 +55,18 @@
 
 package runtime
 
+import (
+	"runtime/internal/atomic"
+	"runtime/internal/sys"
+	"unsafe"
+)
+
 const (
 	// The background scavenger is paced according to these parameters.
 	//
 	// scavengePercent represents the portion of mutator time we're willing
 	// to spend on scavenging in percent.
-	//
-	// scavengePageLatency is a worst-case estimate (order-of-magnitude) of
-	// the time it takes to scavenge one (regular-sized) page of memory.
-	// scavengeHugePageLatency is the same but for huge pages.
-	//
-	// scavengePagePeriod is derived from scavengePercent and scavengePageLatency,
-	// and represents the average time between scavenging one page that we're
-	// aiming for. scavengeHugePagePeriod is the same but for huge pages.
-	// These constants are core to the scavenge pacing algorithm.
-	scavengePercent         = 1    // 1%
-	scavengePageLatency     = 10e3 // 10µs
-	scavengeHugePageLatency = 10e3 // 10µs
-	scavengePagePeriod      = scavengePageLatency / (scavengePercent / 100.0)
-	scavengeHugePagePeriod  = scavengePageLatency / (scavengePercent / 100.0)
+	scavengePercent = 1 // 1%
 
 	// retainExtraPercent represents the amount of memory over the heap goal
 	// that the scavenger should keep as a buffer space for the allocator.
@@ -61,34 +76,46 @@
 	// incurs an additional cost), to account for heap fragmentation and
 	// the ever-changing layout of the heap.
 	retainExtraPercent = 10
+
+	// maxPagesPerPhysPage is the maximum number of supported runtime pages per
+	// physical page, based on maxPhysPageSize.
+	maxPagesPerPhysPage = maxPhysPageSize / pageSize
 )
 
 // heapRetained returns an estimate of the current heap RSS.
-//
-// mheap_.lock must be held or the world must be stopped.
 func heapRetained() uint64 {
-	return memstats.heap_sys - memstats.heap_released
+	return atomic.Load64(&memstats.heap_sys) - atomic.Load64(&memstats.heap_released)
 }
 
 // gcPaceScavenger updates the scavenger's pacing, particularly
 // its rate and RSS goal.
 //
 // The RSS goal is based on the current heap goal with a small overhead
-// to accomodate non-determinism in the allocator.
+// to accommodate non-determinism in the allocator.
 //
 // The pacing is based on scavengePageRate, which applies to both regular and
 // huge pages. See that constant for more information.
 //
 // mheap_.lock must be held or the world must be stopped.
 func gcPaceScavenger() {
-	// Compute our scavenging goal and align it to a physical page boundary
-	// to make the following calculations more exact.
-	retainedGoal := memstats.next_gc
+	// If we're called before the first GC completed, disable scavenging.
+	// We never scavenge before the 2nd GC cycle anyway (we don't have enough
+	// information about the heap yet) so this is fine, and avoids a fault
+	// or garbage data later.
+	if memstats.last_next_gc == 0 {
+		mheap_.scavengeGoal = ^uint64(0)
+		return
+	}
+	// Compute our scavenging goal.
+	goalRatio := float64(memstats.next_gc) / float64(memstats.last_next_gc)
+	retainedGoal := uint64(float64(memstats.last_heap_inuse) * goalRatio)
 	// Add retainExtraPercent overhead to retainedGoal. This calculation
 	// looks strange but the purpose is to arrive at an integer division
 	// (e.g. if retainExtraPercent = 12.5, then we get a divisor of 8)
 	// that also avoids the overflow from a multiplication.
 	retainedGoal += retainedGoal / (1.0 / (retainExtraPercent / 100.0))
+	// Align it to a physical page boundary to make the following calculations
+	// a bit more exact.
 	retainedGoal = (retainedGoal + uint64(physPageSize) - 1) &^ (uint64(physPageSize) - 1)
 
 	// Represents where we are now in the heap's contribution to RSS in bytes.
@@ -104,86 +131,31 @@
 	// physical page.
 	retainedNow := heapRetained()
 
-	// If we're already below our goal, publish the goal in case it changed
-	// then disable the background scavenger.
-	if retainedNow <= retainedGoal {
-		mheap_.scavengeRetainedGoal = retainedGoal
-		mheap_.scavengeBytesPerNS = 0
+	// If we're already below our goal, or within one page of our goal, then disable
+	// the background scavenger. We disable the background scavenger if there's
+	// less than one physical page of work to do because it's not worth it.
+	if retainedNow <= retainedGoal || retainedNow-retainedGoal < uint64(physPageSize) {
+		mheap_.scavengeGoal = ^uint64(0)
 		return
 	}
-
-	// Now we start to compute the total amount of work necessary and the total
-	// amount of time we're willing to give the scavenger to complete this work.
-	// This will involve calculating how much of the work consists of huge pages
-	// and how much consists of regular pages since the former can let us scavenge
-	// more memory in the same time.
-	totalWork := retainedNow - retainedGoal
-
-	// On systems without huge page support, all work is regular work.
-	regularWork := totalWork
-	hugeTime := uint64(0)
-
-	// On systems where we have huge pages, we want to do as much of the
-	// scavenging work as possible on huge pages, because the costs are the
-	// same per page, but we can give back more more memory in a shorter
-	// period of time.
-	if physHugePageSize != 0 {
-		// Start by computing the amount of free memory we have in huge pages
-		// in total. Trivially, this is all the huge page work we need to do.
-		hugeWork := uint64(mheap_.free.unscavHugePages) << physHugePageShift
-
-		// ...but it could turn out that there's more huge work to do than
-		// total work, so cap it at total work. This might happen for very large
-		// heaps where the additional factor of retainExtraPercent can make it so
-		// that there are free chunks of memory larger than a huge page that we don't want
-		// to scavenge.
-		if hugeWork >= totalWork {
-			hugePages := totalWork >> physHugePageShift
-			hugeWork = hugePages << physHugePageShift
-		}
-		// Everything that's not huge work is regular work. At this point we
-		// know huge work so we can calculate how much time that will take
-		// based on scavengePageRate (which applies to pages of any size).
-		regularWork = totalWork - hugeWork
-		hugeTime = (hugeWork >> physHugePageShift) * scavengeHugePagePeriod
-	}
-	// Finally, we can compute how much time it'll take to do the regular work
-	// and the total time to do all the work.
-	regularTime := regularWork / uint64(physPageSize) * scavengePagePeriod
-	totalTime := hugeTime + regularTime
-
-	now := nanotime()
-
-	lock(&scavenge.lock)
-
-	// Update all the pacing parameters in mheap with scavenge.lock held,
-	// so that scavenge.gen is kept in sync with the updated values.
-	mheap_.scavengeRetainedGoal = retainedGoal
-	mheap_.scavengeRetainedBasis = retainedNow
-	mheap_.scavengeTimeBasis = now
-	mheap_.scavengeBytesPerNS = float64(totalWork) / float64(totalTime)
-	scavenge.gen++ // increase scavenge generation
-
-	// Wake up background scavenger if needed, since the pacing was just updated.
-	wakeScavengerLocked()
-
-	unlock(&scavenge.lock)
+	mheap_.scavengeGoal = retainedGoal
+	mheap_.pages.resetScavengeAddr()
 }
 
-// State of the background scavenger.
+// Sleep/wait state of the background scavenger.
 var scavenge struct {
 	lock   mutex
 	g      *g
 	parked bool
 	timer  *timer
-	gen    uint32 // read with either lock or mheap_.lock, write with both
 }
 
-// wakeScavengerLocked unparks the scavenger if necessary. It must be called
+// wakeScavenger unparks the scavenger if necessary. It must be called
 // after any pacing update.
 //
-// scavenge.lock must be held.
-func wakeScavengerLocked() {
+// mheap_.lock and scavenge.lock must not be held.
+func wakeScavenger() {
+	lock(&scavenge.lock)
 	if scavenge.parked {
 		// Try to stop the timer but we don't really care if we succeed.
 		// It's possible that either a timer was never started, or that
@@ -194,45 +166,44 @@
 		stopTimer(scavenge.timer)
 
 		// Unpark the goroutine and tell it that there may have been a pacing
-		// change.
+		// change. Note that we skip the scheduler's runnext slot because we
+		// want to avoid having the scavenger interfere with the fair
+		// scheduling of user goroutines. In effect, this schedules the
+		// scavenger at a "lower priority" but that's OK because it'll
+		// catch up on the work it missed when it does get scheduled.
 		scavenge.parked = false
-		ready(scavenge.g, 0, true)
+		systemstack(func() {
+			ready(scavenge.g, 0, false)
+		})
 	}
+	unlock(&scavenge.lock)
 }
 
 // scavengeSleep attempts to put the scavenger to sleep for ns.
-// It also checks to see if gen != scavenge.gen before going to sleep,
-// and aborts if true (meaning an update had occurred).
 //
 // Note that this function should only be called by the scavenger.
 //
 // The scavenger may be woken up earlier by a pacing change, and it may not go
 // to sleep at all if there's a pending pacing change.
 //
-// Returns false if awoken early (i.e. true means a complete sleep).
-func scavengeSleep(gen uint32, ns int64) bool {
+// Returns the amount of time actually slept.
+func scavengeSleep(ns int64) int64 {
 	lock(&scavenge.lock)
 
-	// If there was an update, just abort the sleep.
-	if scavenge.gen != gen {
-		unlock(&scavenge.lock)
-		return false
-	}
-
 	// Set the timer.
-	now := nanotime()
-	scavenge.timer.when = now + ns
-	startTimer(scavenge.timer)
+	//
+	// This must happen here instead of inside gopark
+	// because we can't close over any variables without
+	// failing escape analysis.
+	start := nanotime()
+	resetTimer(scavenge.timer, start+ns)
 
-	// Park the goroutine. It's fine that we don't publish the
-	// fact that the timer was set; even if the timer wakes up
-	// and fire scavengeReady before we park, it'll block on
-	// scavenge.lock.
+	// Mark ourself as asleep and go to sleep.
 	scavenge.parked = true
 	goparkunlock(&scavenge.lock, waitReasonSleep, traceEvGoSleep, 2)
 
-	// Return true if we completed the full sleep.
-	return (nanotime() - now) >= ns
+	// Return how long we actually slept for.
+	return nanotime() - start
 }
 
 // Background scavenger.
@@ -250,118 +221,543 @@
 
 	scavenge.timer = new(timer)
 	scavenge.timer.f = func(_ interface{}, _ uintptr) {
-		lock(&scavenge.lock)
-		wakeScavengerLocked()
-		unlock(&scavenge.lock)
+		wakeScavenger()
 	}
 
 	c <- 1
 	goparkunlock(&scavenge.lock, waitReasonGCScavengeWait, traceEvGoBlock, 1)
 
-	// Parameters for sleeping.
+	// Exponentially-weighted moving average of the fraction of time this
+	// goroutine spends scavenging (that is, percent of a single CPU).
+	// It represents a measure of scheduling overheads which might extend
+	// the sleep or the critical time beyond what's expected. Assume no
+	// overhead to begin with.
 	//
-	// If we end up doing more work than we need, we should avoid spinning
-	// until we have more work to do: instead, we know exactly how much time
-	// until more work will need to be done, so we sleep.
-	//
-	// We should avoid sleeping for less than minSleepNS because Gosched()
-	// overheads among other things will work out better in that case.
-	//
-	// There's no reason to set a maximum on sleep time because we'll always
-	// get woken up earlier if there's any kind of update that could change
-	// the scavenger's pacing.
-	//
-	// retryDelayNS tracks how much to sleep next time we fail to do any
-	// useful work.
-	const minSleepNS = int64(100 * 1000) // 100 µs
-
-	retryDelayNS := minSleepNS
+	// TODO(mknyszek): Consider making this based on total CPU time of the
+	// application (i.e. scavengePercent * GOMAXPROCS). This isn't really
+	// feasible now because the scavenger acquires the heap lock over the
+	// scavenging operation, which means scavenging effectively blocks
+	// allocators and isn't scalable. However, given a scalable allocator,
+	// it makes sense to also make the scavenger scale with it; if you're
+	// allocating more frequently, then presumably you're also generating
+	// more work for the scavenger.
+	const idealFraction = scavengePercent / 100.0
+	scavengeEWMA := float64(idealFraction)
 
 	for {
 		released := uintptr(0)
-		park := false
-		ttnext := int64(0)
-		gen := uint32(0)
+
+		// Time in scavenging critical section.
+		crit := int64(0)
 
 		// Run on the system stack since we grab the heap lock,
 		// and a stack growth with the heap lock means a deadlock.
 		systemstack(func() {
 			lock(&mheap_.lock)
 
-			gen = scavenge.gen
-
 			// If background scavenging is disabled or if there's no work to do just park.
-			retained := heapRetained()
-			if mheap_.scavengeBytesPerNS == 0 || retained <= mheap_.scavengeRetainedGoal {
+			retained, goal := heapRetained(), mheap_.scavengeGoal
+			if retained <= goal {
 				unlock(&mheap_.lock)
-				park = true
 				return
 			}
-
-			// Calculate how big we want the retained heap to be
-			// at this point in time.
-			//
-			// The formula is for that of a line, y = b - mx
-			// We want y (want),
-			//   m = scavengeBytesPerNS (> 0)
-			//   x = time between scavengeTimeBasis and now
-			//   b = scavengeRetainedBasis
-			rate := mheap_.scavengeBytesPerNS
-			tdist := nanotime() - mheap_.scavengeTimeBasis
-			rdist := uint64(rate * float64(tdist))
-			want := mheap_.scavengeRetainedBasis - rdist
-
-			// If we're above the line, scavenge to get below the
-			// line.
-			if retained > want {
-				released = mheap_.scavengeLocked(uintptr(retained - want))
-			}
 			unlock(&mheap_.lock)
 
-			// If we over-scavenged a bit, calculate how much time it'll
-			// take at the current rate for us to make that up. We definitely
-			// won't have any work to do until at least that amount of time
-			// passes.
-			if released > uintptr(retained-want) {
-				extra := released - uintptr(retained-want)
-				ttnext = int64(float64(extra) / rate)
-			}
+			// Scavenge one page, and measure the amount of time spent scavenging.
+			start := nanotime()
+			released = mheap_.pages.scavengeOne(physPageSize, false)
+			crit = nanotime() - start
 		})
 
-		if park {
+		if debug.gctrace > 0 {
+			if released > 0 {
+				print("scvg: ", released>>10, " KB released\n")
+			}
+			print("scvg: inuse: ", memstats.heap_inuse>>20, ", idle: ", memstats.heap_idle>>20, ", sys: ", memstats.heap_sys>>20, ", released: ", memstats.heap_released>>20, ", consumed: ", (memstats.heap_sys-memstats.heap_released)>>20, " (MB)\n")
+		}
+
+		if released == 0 {
 			lock(&scavenge.lock)
 			scavenge.parked = true
 			goparkunlock(&scavenge.lock, waitReasonGCScavengeWait, traceEvGoBlock, 1)
 			continue
 		}
 
-		if debug.gctrace > 0 {
-			if released > 0 {
-				print("scvg: ", released>>20, " MB released\n")
-			}
-			print("scvg: inuse: ", memstats.heap_inuse>>20, ", idle: ", memstats.heap_idle>>20, ", sys: ", memstats.heap_sys>>20, ", released: ", memstats.heap_released>>20, ", consumed: ", (memstats.heap_sys-memstats.heap_released)>>20, " (MB)\n")
+		// If we spent more than 10 ms (for example, if the OS scheduled us away, or someone
+		// put their machine to sleep) in the critical section, bound the time we use to
+		// calculate at 10 ms to avoid letting the sleep time get arbitrarily high.
+		const maxCrit = 10e6
+		if crit > maxCrit {
+			crit = maxCrit
 		}
 
-		if released == 0 {
-			// If we were unable to release anything this may be because there's
-			// no free memory available to scavenge. Go to sleep and try again.
-			if scavengeSleep(gen, retryDelayNS) {
-				// If we successfully slept through the delay, back off exponentially.
-				retryDelayNS *= 2
-			}
-			continue
-		}
-		retryDelayNS = minSleepNS
+		// Compute the amount of time to sleep, assuming we want to use at most
+		// scavengePercent of CPU time. Take into account scheduling overheads
+		// that may extend the length of our sleep by multiplying by how far
+		// off we are from the ideal ratio. For example, if we're sleeping too
+		// much, then scavengeEMWA < idealFraction, so we'll adjust the sleep time
+		// down.
+		adjust := scavengeEWMA / idealFraction
+		sleepTime := int64(adjust * float64(crit) / (scavengePercent / 100.0))
 
-		if ttnext > 0 && ttnext > minSleepNS {
-			// If there's an appreciable amount of time until the next scavenging
-			// goal, just sleep. We'll get woken up if anything changes and this
-			// way we avoid spinning.
-			scavengeSleep(gen, ttnext)
-			continue
+		// Go to sleep.
+		slept := scavengeSleep(sleepTime)
+
+		// Compute the new ratio.
+		fraction := float64(crit) / float64(crit+slept)
+
+		// Set a lower bound on the fraction.
+		// Due to OS-related anomalies we may "sleep" for an inordinate amount
+		// of time. Let's avoid letting the ratio get out of hand by bounding
+		// the sleep time we use in our EWMA.
+		const minFraction = 1 / 1000
+		if fraction < minFraction {
+			fraction = minFraction
 		}
 
-		// Give something else a chance to run, no locks are held.
-		Gosched()
+		// Update scavengeEWMA by merging in the new crit/slept ratio.
+		const alpha = 0.5
+		scavengeEWMA = alpha*fraction + (1-alpha)*scavengeEWMA
 	}
 }
+
+// scavenge scavenges nbytes worth of free pages, starting with the
+// highest address first. Successive calls continue from where it left
+// off until the heap is exhausted. Call resetScavengeAddr to bring it
+// back to the top of the heap.
+//
+// Returns the amount of memory scavenged in bytes.
+//
+// If locked == false, s.mheapLock must not be locked. If locked == true,
+// s.mheapLock must be locked.
+//
+// Must run on the system stack because scavengeOne must run on the
+// system stack.
+//
+//go:systemstack
+func (s *pageAlloc) scavenge(nbytes uintptr, locked bool) uintptr {
+	released := uintptr(0)
+	for released < nbytes {
+		r := s.scavengeOne(nbytes-released, locked)
+		if r == 0 {
+			// Nothing left to scavenge! Give up.
+			break
+		}
+		released += r
+	}
+	return released
+}
+
+// resetScavengeAddr sets the scavenge start address to the top of the heap's
+// address space. This should be called each time the scavenger's pacing
+// changes.
+//
+// s.mheapLock must be held.
+func (s *pageAlloc) resetScavengeAddr() {
+	s.scavAddr = chunkBase(s.end) - 1
+}
+
+// scavengeOne starts from s.scavAddr and walks down the heap until it finds
+// a contiguous run of pages to scavenge. It will try to scavenge at most
+// max bytes at once, but may scavenge more to avoid breaking huge pages. Once
+// it scavenges some memory it returns how much it scavenged and updates s.scavAddr
+// appropriately. s.scavAddr must be reset manually and externally.
+//
+// Should it exhaust the heap, it will return 0 and set s.scavAddr to minScavAddr.
+//
+// If locked == false, s.mheapLock must not be locked.
+// If locked == true, s.mheapLock must be locked.
+//
+// Must be run on the system stack because it either acquires the heap lock
+// or executes with the heap lock acquired.
+//
+//go:systemstack
+func (s *pageAlloc) scavengeOne(max uintptr, locked bool) uintptr {
+	// Calculate the maximum number of pages to scavenge.
+	//
+	// This should be alignUp(max, pageSize) / pageSize but max can and will
+	// be ^uintptr(0), so we need to be very careful not to overflow here.
+	// Rather than use alignUp, calculate the number of pages rounded down
+	// first, then add back one if necessary.
+	maxPages := max / pageSize
+	if max%pageSize != 0 {
+		maxPages++
+	}
+
+	// Calculate the minimum number of pages we can scavenge.
+	//
+	// Because we can only scavenge whole physical pages, we must
+	// ensure that we scavenge at least minPages each time, aligned
+	// to minPages*pageSize.
+	minPages := physPageSize / pageSize
+	if minPages < 1 {
+		minPages = 1
+	}
+
+	// Helpers for locking and unlocking only if locked == false.
+	lockHeap := func() {
+		if !locked {
+			lock(s.mheapLock)
+		}
+	}
+	unlockHeap := func() {
+		if !locked {
+			unlock(s.mheapLock)
+		}
+	}
+
+	lockHeap()
+	ci := chunkIndex(s.scavAddr)
+	if ci < s.start {
+		unlockHeap()
+		return 0
+	}
+
+	// Check the chunk containing the scav addr, starting at the addr
+	// and see if there are any free and unscavenged pages.
+	if s.summary[len(s.summary)-1][ci].max() >= uint(minPages) {
+		// We only bother looking for a candidate if there at least
+		// minPages free pages at all. It's important that we only
+		// continue if the summary says we can because that's how
+		// we can tell if parts of the address space are unused.
+		// See the comment on s.chunks in mpagealloc.go.
+		base, npages := s.chunkOf(ci).findScavengeCandidate(chunkPageIndex(s.scavAddr), minPages, maxPages)
+
+		// If we found something, scavenge it and return!
+		if npages != 0 {
+			s.scavengeRangeLocked(ci, base, npages)
+			unlockHeap()
+			return uintptr(npages) * pageSize
+		}
+	}
+
+	// getInUseRange returns the highest range in the
+	// intersection of [0, addr] and s.inUse.
+	//
+	// s.mheapLock must be held.
+	getInUseRange := func(addr uintptr) addrRange {
+		top := s.inUse.findSucc(addr)
+		if top == 0 {
+			return addrRange{}
+		}
+		r := s.inUse.ranges[top-1]
+		// addr is inclusive, so treat it as such when
+		// updating the limit, which is exclusive.
+		if r.limit > addr+1 {
+			r.limit = addr + 1
+		}
+		return r
+	}
+
+	// Slow path: iterate optimistically over the in-use address space
+	// looking for any free and unscavenged page. If we think we see something,
+	// lock and verify it!
+	//
+	// We iterate over the address space by taking ranges from inUse.
+newRange:
+	for {
+		r := getInUseRange(s.scavAddr)
+		if r.size() == 0 {
+			break
+		}
+		unlockHeap()
+
+		// Iterate over all of the chunks described by r.
+		// Note that r.limit is the exclusive upper bound, but what
+		// we want is the top chunk instead, inclusive, so subtract 1.
+		bot, top := chunkIndex(r.base), chunkIndex(r.limit-1)
+		for i := top; i >= bot; i-- {
+			// If this chunk is totally in-use or has no unscavenged pages, don't bother
+			// doing a  more sophisticated check.
+			//
+			// Note we're accessing the summary and the chunks without a lock, but
+			// that's fine. We're being optimistic anyway.
+
+			// Check quickly if there are enough free pages at all.
+			if s.summary[len(s.summary)-1][i].max() < uint(minPages) {
+				continue
+			}
+
+			// Run over the chunk looking harder for a candidate. Again, we could
+			// race with a lot of different pieces of code, but we're just being
+			// optimistic. Make sure we load the l2 pointer atomically though, to
+			// avoid races with heap growth. It may or may not be possible to also
+			// see a nil pointer in this case if we do race with heap growth, but
+			// just defensively ignore the nils. This operation is optimistic anyway.
+			l2 := (*[1 << pallocChunksL2Bits]pallocData)(atomic.Loadp(unsafe.Pointer(&s.chunks[i.l1()])))
+			if l2 == nil || !l2[i.l2()].hasScavengeCandidate(minPages) {
+				continue
+			}
+
+			// We found a candidate, so let's lock and verify it.
+			lockHeap()
+
+			// Find, verify, and scavenge if we can.
+			chunk := s.chunkOf(i)
+			base, npages := chunk.findScavengeCandidate(pallocChunkPages-1, minPages, maxPages)
+			if npages > 0 {
+				// We found memory to scavenge! Mark the bits and report that up.
+				// scavengeRangeLocked will update scavAddr for us, also.
+				s.scavengeRangeLocked(i, base, npages)
+				unlockHeap()
+				return uintptr(npages) * pageSize
+			}
+
+			// We were fooled, let's take this opportunity to move the scavAddr
+			// all the way down to where we searched as scavenged for future calls
+			// and keep iterating. Then, go get a new range.
+			s.scavAddr = chunkBase(i-1) + pallocChunkPages*pageSize - 1
+			continue newRange
+		}
+		lockHeap()
+
+		// Move the scavenger down the heap, past everything we just searched.
+		// Since we don't check if scavAddr moved while twe let go of the heap lock,
+		// it's possible that it moved down and we're moving it up here. This
+		// raciness could result in us searching parts of the heap unnecessarily.
+		// TODO(mknyszek): Remove this racy behavior through explicit address
+		// space reservations, which are difficult to do with just scavAddr.
+		s.scavAddr = r.base - 1
+	}
+	// We reached the end of the in-use address space and couldn't find anything,
+	// so signal that there's nothing left to scavenge.
+	s.scavAddr = minScavAddr
+	unlockHeap()
+
+	return 0
+}
+
+// scavengeRangeLocked scavenges the given region of memory.
+//
+// s.mheapLock must be held.
+func (s *pageAlloc) scavengeRangeLocked(ci chunkIdx, base, npages uint) {
+	s.chunkOf(ci).scavenged.setRange(base, npages)
+
+	// Compute the full address for the start of the range.
+	addr := chunkBase(ci) + uintptr(base)*pageSize
+
+	// Update the scav pointer.
+	s.scavAddr = addr - 1
+
+	// Only perform the actual scavenging if we're not in a test.
+	// It's dangerous to do so otherwise.
+	if s.test {
+		return
+	}
+	sysUnused(unsafe.Pointer(addr), uintptr(npages)*pageSize)
+
+	// Update global accounting only when not in test, otherwise
+	// the runtime's accounting will be wrong.
+	mSysStatInc(&memstats.heap_released, uintptr(npages)*pageSize)
+}
+
+// fillAligned returns x but with all zeroes in m-aligned
+// groups of m bits set to 1 if any bit in the group is non-zero.
+//
+// For example, fillAligned(0x0100a3, 8) == 0xff00ff.
+//
+// Note that if m == 1, this is a no-op.
+//
+// m must be a power of 2 <= maxPagesPerPhysPage.
+func fillAligned(x uint64, m uint) uint64 {
+	apply := func(x uint64, c uint64) uint64 {
+		// The technique used it here is derived from
+		// https://graphics.stanford.edu/~seander/bithacks.html#ZeroInWord
+		// and extended for more than just bytes (like nibbles
+		// and uint16s) by using an appropriate constant.
+		//
+		// To summarize the technique, quoting from that page:
+		// "[It] works by first zeroing the high bits of the [8]
+		// bytes in the word. Subsequently, it adds a number that
+		// will result in an overflow to the high bit of a byte if
+		// any of the low bits were initially set. Next the high
+		// bits of the original word are ORed with these values;
+		// thus, the high bit of a byte is set iff any bit in the
+		// byte was set. Finally, we determine if any of these high
+		// bits are zero by ORing with ones everywhere except the
+		// high bits and inverting the result."
+		return ^((((x & c) + c) | x) | c)
+	}
+	// Transform x to contain a 1 bit at the top of each m-aligned
+	// group of m zero bits.
+	switch m {
+	case 1:
+		return x
+	case 2:
+		x = apply(x, 0x5555555555555555)
+	case 4:
+		x = apply(x, 0x7777777777777777)
+	case 8:
+		x = apply(x, 0x7f7f7f7f7f7f7f7f)
+	case 16:
+		x = apply(x, 0x7fff7fff7fff7fff)
+	case 32:
+		x = apply(x, 0x7fffffff7fffffff)
+	case 64: // == maxPagesPerPhysPage
+		x = apply(x, 0x7fffffffffffffff)
+	default:
+		throw("bad m value")
+	}
+	// Now, the top bit of each m-aligned group in x is set
+	// that group was all zero in the original x.
+
+	// From each group of m bits subtract 1.
+	// Because we know only the top bits of each
+	// m-aligned group are set, we know this will
+	// set each group to have all the bits set except
+	// the top bit, so just OR with the original
+	// result to set all the bits.
+	return ^((x - (x >> (m - 1))) | x)
+}
+
+// hasScavengeCandidate returns true if there's any min-page-aligned groups of
+// min pages of free-and-unscavenged memory in the region represented by this
+// pallocData.
+//
+// min must be a non-zero power of 2 <= maxPagesPerPhysPage.
+func (m *pallocData) hasScavengeCandidate(min uintptr) bool {
+	if min&(min-1) != 0 || min == 0 {
+		print("runtime: min = ", min, "\n")
+		throw("min must be a non-zero power of 2")
+	} else if min > maxPagesPerPhysPage {
+		print("runtime: min = ", min, "\n")
+		throw("min too large")
+	}
+
+	// The goal of this search is to see if the chunk contains any free and unscavenged memory.
+	for i := len(m.scavenged) - 1; i >= 0; i-- {
+		// 1s are scavenged OR non-free => 0s are unscavenged AND free
+		//
+		// TODO(mknyszek): Consider splitting up fillAligned into two
+		// functions, since here we technically could get by with just
+		// the first half of its computation. It'll save a few instructions
+		// but adds some additional code complexity.
+		x := fillAligned(m.scavenged[i]|m.pallocBits[i], uint(min))
+
+		// Quickly skip over chunks of non-free or scavenged pages.
+		if x != ^uint64(0) {
+			return true
+		}
+	}
+	return false
+}
+
+// findScavengeCandidate returns a start index and a size for this pallocData
+// segment which represents a contiguous region of free and unscavenged memory.
+//
+// searchIdx indicates the page index within this chunk to start the search, but
+// note that findScavengeCandidate searches backwards through the pallocData. As a
+// a result, it will return the highest scavenge candidate in address order.
+//
+// min indicates a hard minimum size and alignment for runs of pages. That is,
+// findScavengeCandidate will not return a region smaller than min pages in size,
+// or that is min pages or greater in size but not aligned to min. min must be
+// a non-zero power of 2 <= maxPagesPerPhysPage.
+//
+// max is a hint for how big of a region is desired. If max >= pallocChunkPages, then
+// findScavengeCandidate effectively returns entire free and unscavenged regions.
+// If max < pallocChunkPages, it may truncate the returned region such that size is
+// max. However, findScavengeCandidate may still return a larger region if, for
+// example, it chooses to preserve huge pages, or if max is not aligned to min (it
+// will round up). That is, even if max is small, the returned size is not guaranteed
+// to be equal to max. max is allowed to be less than min, in which case it is as if
+// max == min.
+func (m *pallocData) findScavengeCandidate(searchIdx uint, min, max uintptr) (uint, uint) {
+	if min&(min-1) != 0 || min == 0 {
+		print("runtime: min = ", min, "\n")
+		throw("min must be a non-zero power of 2")
+	} else if min > maxPagesPerPhysPage {
+		print("runtime: min = ", min, "\n")
+		throw("min too large")
+	}
+	// max may not be min-aligned, so we might accidentally truncate to
+	// a max value which causes us to return a non-min-aligned value.
+	// To prevent this, align max up to a multiple of min (which is always
+	// a power of 2). This also prevents max from ever being less than
+	// min, unless it's zero, so handle that explicitly.
+	if max == 0 {
+		max = min
+	} else {
+		max = alignUp(max, min)
+	}
+
+	i := int(searchIdx / 64)
+	// Start by quickly skipping over blocks of non-free or scavenged pages.
+	for ; i >= 0; i-- {
+		// 1s are scavenged OR non-free => 0s are unscavenged AND free
+		x := fillAligned(m.scavenged[i]|m.pallocBits[i], uint(min))
+		if x != ^uint64(0) {
+			break
+		}
+	}
+	if i < 0 {
+		// Failed to find any free/unscavenged pages.
+		return 0, 0
+	}
+	// We have something in the 64-bit chunk at i, but it could
+	// extend further. Loop until we find the extent of it.
+
+	// 1s are scavenged OR non-free => 0s are unscavenged AND free
+	x := fillAligned(m.scavenged[i]|m.pallocBits[i], uint(min))
+	z1 := uint(sys.LeadingZeros64(^x))
+	run, end := uint(0), uint(i)*64+(64-z1)
+	if x<<z1 != 0 {
+		// After shifting out z1 bits, we still have 1s,
+		// so the run ends inside this word.
+		run = uint(sys.LeadingZeros64(x << z1))
+	} else {
+		// After shifting out z1 bits, we have no more 1s.
+		// This means the run extends to the bottom of the
+		// word so it may extend into further words.
+		run = 64 - z1
+		for j := i - 1; j >= 0; j-- {
+			x := fillAligned(m.scavenged[j]|m.pallocBits[j], uint(min))
+			run += uint(sys.LeadingZeros64(x))
+			if x != 0 {
+				// The run stopped in this word.
+				break
+			}
+		}
+	}
+
+	// Split the run we found if it's larger than max but hold on to
+	// our original length, since we may need it later.
+	size := run
+	if size > uint(max) {
+		size = uint(max)
+	}
+	start := end - size
+
+	// Each huge page is guaranteed to fit in a single palloc chunk.
+	//
+	// TODO(mknyszek): Support larger huge page sizes.
+	// TODO(mknyszek): Consider taking pages-per-huge-page as a parameter
+	// so we can write tests for this.
+	if physHugePageSize > pageSize && physHugePageSize > physPageSize {
+		// We have huge pages, so let's ensure we don't break one by scavenging
+		// over a huge page boundary. If the range [start, start+size) overlaps with
+		// a free-and-unscavenged huge page, we want to grow the region we scavenge
+		// to include that huge page.
+
+		// Compute the huge page boundary above our candidate.
+		pagesPerHugePage := uintptr(physHugePageSize / pageSize)
+		hugePageAbove := uint(alignUp(uintptr(start), pagesPerHugePage))
+
+		// If that boundary is within our current candidate, then we may be breaking
+		// a huge page.
+		if hugePageAbove <= end {
+			// Compute the huge page boundary below our candidate.
+			hugePageBelow := uint(alignDown(uintptr(start), pagesPerHugePage))
+
+			if hugePageBelow >= end-run {
+				// We're in danger of breaking apart a huge page since start+size crosses
+				// a huge page boundary and rounding down start to the nearest huge
+				// page boundary is included in the full run we found. Include the entire
+				// huge page in the bound by rounding down to the huge page size.
+				size = size + (start - hugePageBelow)
+				start = hugePageBelow
+			}
+		}
+	}
+	return start, size
+}
diff --git a/libgo/go/runtime/mgcscavenge_test.go b/libgo/go/runtime/mgcscavenge_test.go
new file mode 100644
index 0000000..518d5ab
--- /dev/null
+++ b/libgo/go/runtime/mgcscavenge_test.go
@@ -0,0 +1,419 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime_test
+
+import (
+	"fmt"
+	"math/rand"
+	. "runtime"
+	"testing"
+)
+
+// makePallocData produces an initialized PallocData by setting
+// the ranges of described in alloc and scavenge.
+func makePallocData(alloc, scavenged []BitRange) *PallocData {
+	b := new(PallocData)
+	for _, v := range alloc {
+		if v.N == 0 {
+			// Skip N==0. It's harmless and allocRange doesn't
+			// handle this case.
+			continue
+		}
+		b.AllocRange(v.I, v.N)
+	}
+	for _, v := range scavenged {
+		if v.N == 0 {
+			// See the previous loop.
+			continue
+		}
+		b.ScavengedSetRange(v.I, v.N)
+	}
+	return b
+}
+
+func TestFillAligned(t *testing.T) {
+	fillAlignedSlow := func(x uint64, m uint) uint64 {
+		if m == 1 {
+			return x
+		}
+		out := uint64(0)
+		for i := uint(0); i < 64; i += m {
+			for j := uint(0); j < m; j++ {
+				if x&(uint64(1)<<(i+j)) != 0 {
+					out |= ((uint64(1) << m) - 1) << i
+					break
+				}
+			}
+		}
+		return out
+	}
+	check := func(x uint64, m uint) {
+		want := fillAlignedSlow(x, m)
+		if got := FillAligned(x, m); got != want {
+			t.Logf("got:  %064b", got)
+			t.Logf("want: %064b", want)
+			t.Errorf("bad fillAligned(%016x, %d)", x, m)
+		}
+	}
+	for m := uint(1); m <= 64; m *= 2 {
+		tests := []uint64{
+			0x0000000000000000,
+			0x00000000ffffffff,
+			0xffffffff00000000,
+			0x8000000000000001,
+			0xf00000000000000f,
+			0xf00000010050000f,
+			0xffffffffffffffff,
+			0x0000000000000001,
+			0x0000000000000002,
+			0x0000000000000008,
+			uint64(1) << (m - 1),
+			uint64(1) << m,
+			// Try a few fixed arbitrary examples.
+			0xb02b9effcf137016,
+			0x3975a076a9fbff18,
+			0x0f8c88ec3b81506e,
+			0x60f14d80ef2fa0e6,
+		}
+		for _, test := range tests {
+			check(test, m)
+		}
+		for i := 0; i < 1000; i++ {
+			// Try a pseudo-random numbers.
+			check(rand.Uint64(), m)
+
+			if m > 1 {
+				// For m != 1, let's construct a slightly more interesting
+				// random test. Generate a bitmap which is either 0 or
+				// randomly set bits for each m-aligned group of m bits.
+				val := uint64(0)
+				for n := uint(0); n < 64; n += m {
+					// For each group of m bits, flip a coin:
+					// * Leave them as zero.
+					// * Set them randomly.
+					if rand.Uint64()%2 == 0 {
+						val |= (rand.Uint64() & ((1 << m) - 1)) << n
+					}
+				}
+				check(val, m)
+			}
+		}
+	}
+}
+
+func TestPallocDataFindScavengeCandidate(t *testing.T) {
+	type test struct {
+		alloc, scavenged []BitRange
+		min, max         uintptr
+		want             BitRange
+	}
+	tests := map[string]test{
+		"MixedMin1": {
+			alloc:     []BitRange{{0, 40}, {42, PallocChunkPages - 42}},
+			scavenged: []BitRange{{0, 41}, {42, PallocChunkPages - 42}},
+			min:       1,
+			max:       PallocChunkPages,
+			want:      BitRange{41, 1},
+		},
+		"MultiMin1": {
+			alloc:     []BitRange{{0, 63}, {65, 20}, {87, PallocChunkPages - 87}},
+			scavenged: []BitRange{{86, 1}},
+			min:       1,
+			max:       PallocChunkPages,
+			want:      BitRange{85, 1},
+		},
+	}
+	// Try out different page minimums.
+	for m := uintptr(1); m <= 64; m *= 2 {
+		suffix := fmt.Sprintf("Min%d", m)
+		tests["AllFree"+suffix] = test{
+			min:  m,
+			max:  PallocChunkPages,
+			want: BitRange{0, PallocChunkPages},
+		}
+		tests["AllScavenged"+suffix] = test{
+			scavenged: []BitRange{{0, PallocChunkPages}},
+			min:       m,
+			max:       PallocChunkPages,
+			want:      BitRange{0, 0},
+		}
+		tests["NoneFree"+suffix] = test{
+			alloc:     []BitRange{{0, PallocChunkPages}},
+			scavenged: []BitRange{{PallocChunkPages / 2, PallocChunkPages / 2}},
+			min:       m,
+			max:       PallocChunkPages,
+			want:      BitRange{0, 0},
+		}
+		tests["StartFree"+suffix] = test{
+			alloc: []BitRange{{uint(m), PallocChunkPages - uint(m)}},
+			min:   m,
+			max:   PallocChunkPages,
+			want:  BitRange{0, uint(m)},
+		}
+		tests["StartFree"+suffix] = test{
+			alloc: []BitRange{{uint(m), PallocChunkPages - uint(m)}},
+			min:   m,
+			max:   PallocChunkPages,
+			want:  BitRange{0, uint(m)},
+		}
+		tests["EndFree"+suffix] = test{
+			alloc: []BitRange{{0, PallocChunkPages - uint(m)}},
+			min:   m,
+			max:   PallocChunkPages,
+			want:  BitRange{PallocChunkPages - uint(m), uint(m)},
+		}
+		tests["Straddle64"+suffix] = test{
+			alloc: []BitRange{{0, 64 - uint(m)}, {64 + uint(m), PallocChunkPages - (64 + uint(m))}},
+			min:   m,
+			max:   2 * m,
+			want:  BitRange{64 - uint(m), 2 * uint(m)},
+		}
+		tests["BottomEdge64WithFull"+suffix] = test{
+			alloc:     []BitRange{{64, 64}, {128 + 3*uint(m), PallocChunkPages - (128 + 3*uint(m))}},
+			scavenged: []BitRange{{1, 10}},
+			min:       m,
+			max:       3 * m,
+			want:      BitRange{128, 3 * uint(m)},
+		}
+		tests["BottomEdge64WithPocket"+suffix] = test{
+			alloc:     []BitRange{{64, 62}, {127, 1}, {128 + 3*uint(m), PallocChunkPages - (128 + 3*uint(m))}},
+			scavenged: []BitRange{{1, 10}},
+			min:       m,
+			max:       3 * m,
+			want:      BitRange{128, 3 * uint(m)},
+		}
+		tests["Max0"+suffix] = test{
+			scavenged: []BitRange{{0, PallocChunkPages - uint(m)}},
+			min:       m,
+			max:       0,
+			want:      BitRange{PallocChunkPages - uint(m), uint(m)},
+		}
+		if m <= 8 {
+			tests["OneFree"] = test{
+				alloc: []BitRange{{0, 40}, {40 + uint(m), PallocChunkPages - (40 + uint(m))}},
+				min:   m,
+				max:   PallocChunkPages,
+				want:  BitRange{40, uint(m)},
+			}
+			tests["OneScavenged"] = test{
+				alloc:     []BitRange{{0, 40}, {40 + uint(m), PallocChunkPages - (40 + uint(m))}},
+				scavenged: []BitRange{{40, 1}},
+				min:       m,
+				max:       PallocChunkPages,
+				want:      BitRange{0, 0},
+			}
+		}
+		if m > 1 {
+			tests["MaxUnaligned"+suffix] = test{
+				scavenged: []BitRange{{0, PallocChunkPages - uint(m*2-1)}},
+				min:       m,
+				max:       m - 2,
+				want:      BitRange{PallocChunkPages - uint(m), uint(m)},
+			}
+			tests["SkipSmall"+suffix] = test{
+				alloc: []BitRange{{0, 64 - uint(m)}, {64, 5}, {70, 11}, {82, PallocChunkPages - 82}},
+				min:   m,
+				max:   m,
+				want:  BitRange{64 - uint(m), uint(m)},
+			}
+			tests["SkipMisaligned"+suffix] = test{
+				alloc: []BitRange{{0, 64 - uint(m)}, {64, 63}, {127 + uint(m), PallocChunkPages - (127 + uint(m))}},
+				min:   m,
+				max:   m,
+				want:  BitRange{64 - uint(m), uint(m)},
+			}
+			tests["MaxLessThan"+suffix] = test{
+				scavenged: []BitRange{{0, PallocChunkPages - uint(m)}},
+				min:       m,
+				max:       1,
+				want:      BitRange{PallocChunkPages - uint(m), uint(m)},
+			}
+		}
+	}
+	if PhysHugePageSize > uintptr(PageSize) {
+		// Check hugepage preserving behavior.
+		bits := uint(PhysHugePageSize / uintptr(PageSize))
+		tests["PreserveHugePageBottom"] = test{
+			alloc: []BitRange{{bits + 2, PallocChunkPages - (bits + 2)}},
+			min:   1,
+			max:   3, // Make it so that max would have us try to break the huge page.
+			want:  BitRange{0, bits + 2},
+		}
+		if 3*bits < PallocChunkPages {
+			// We need at least 3 huge pages in a chunk for this test to make sense.
+			tests["PreserveHugePageMiddle"] = test{
+				alloc: []BitRange{{0, bits - 10}, {2*bits + 10, PallocChunkPages - (2*bits + 10)}},
+				min:   1,
+				max:   12, // Make it so that max would have us try to break the huge page.
+				want:  BitRange{bits, bits + 10},
+			}
+		}
+		tests["PreserveHugePageTop"] = test{
+			alloc: []BitRange{{0, PallocChunkPages - bits}},
+			min:   1,
+			max:   1, // Even one page would break a huge page in this case.
+			want:  BitRange{PallocChunkPages - bits, bits},
+		}
+	}
+	for name, v := range tests {
+		v := v
+		t.Run(name, func(t *testing.T) {
+			b := makePallocData(v.alloc, v.scavenged)
+			start, size := b.FindScavengeCandidate(PallocChunkPages-1, v.min, v.max)
+			got := BitRange{start, size}
+			if !(got.N == 0 && v.want.N == 0) && got != v.want {
+				t.Fatalf("candidate mismatch: got %v, want %v", got, v.want)
+			}
+		})
+	}
+}
+
+// Tests end-to-end scavenging on a pageAlloc.
+func TestPageAllocScavenge(t *testing.T) {
+	type test struct {
+		request, expect uintptr
+	}
+	minPages := PhysPageSize / PageSize
+	if minPages < 1 {
+		minPages = 1
+	}
+	tests := map[string]struct {
+		beforeAlloc map[ChunkIdx][]BitRange
+		beforeScav  map[ChunkIdx][]BitRange
+		expect      []test
+		afterScav   map[ChunkIdx][]BitRange
+	}{
+		"AllFreeUnscavExhaust": {
+			beforeAlloc: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+				BaseChunkIdx + 2: {},
+			},
+			beforeScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+				BaseChunkIdx + 2: {},
+			},
+			expect: []test{
+				{^uintptr(0), 3 * PallocChunkPages * PageSize},
+			},
+			afterScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+			},
+		},
+		"NoneFreeUnscavExhaust": {
+			beforeAlloc: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+			},
+			beforeScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {},
+			},
+			expect: []test{
+				{^uintptr(0), 0},
+			},
+			afterScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {},
+			},
+		},
+		"ScavHighestPageFirst": {
+			beforeAlloc: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+			beforeScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{uint(minPages), PallocChunkPages - uint(2*minPages)}},
+			},
+			expect: []test{
+				{1, minPages * PageSize},
+			},
+			afterScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{uint(minPages), PallocChunkPages - uint(minPages)}},
+			},
+		},
+		"ScavMultiple": {
+			beforeAlloc: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+			beforeScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{uint(minPages), PallocChunkPages - uint(2*minPages)}},
+			},
+			expect: []test{
+				{minPages * PageSize, minPages * PageSize},
+				{minPages * PageSize, minPages * PageSize},
+			},
+			afterScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+		},
+		"ScavMultiple2": {
+			beforeAlloc: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+			},
+			beforeScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{uint(minPages), PallocChunkPages - uint(2*minPages)}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages - uint(2*minPages)}},
+			},
+			expect: []test{
+				{2 * minPages * PageSize, 2 * minPages * PageSize},
+				{minPages * PageSize, minPages * PageSize},
+				{minPages * PageSize, minPages * PageSize},
+			},
+			afterScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+			},
+		},
+		"ScavDiscontiguous": {
+			beforeAlloc: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:       {},
+				BaseChunkIdx + 0xe: {},
+			},
+			beforeScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:       {{uint(minPages), PallocChunkPages - uint(2*minPages)}},
+				BaseChunkIdx + 0xe: {{uint(2 * minPages), PallocChunkPages - uint(2*minPages)}},
+			},
+			expect: []test{
+				{2 * minPages * PageSize, 2 * minPages * PageSize},
+				{^uintptr(0), 2 * minPages * PageSize},
+				{^uintptr(0), 0},
+			},
+			afterScav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:       {{0, PallocChunkPages}},
+				BaseChunkIdx + 0xe: {{0, PallocChunkPages}},
+			},
+		},
+	}
+	for name, v := range tests {
+		v := v
+		runTest := func(t *testing.T, locked bool) {
+			b := NewPageAlloc(v.beforeAlloc, v.beforeScav)
+			defer FreePageAlloc(b)
+
+			for iter, h := range v.expect {
+				if got := b.Scavenge(h.request, locked); got != h.expect {
+					t.Fatalf("bad scavenge #%d: want %d, got %d", iter+1, h.expect, got)
+				}
+			}
+			want := NewPageAlloc(v.beforeAlloc, v.afterScav)
+			defer FreePageAlloc(want)
+
+			checkPageAlloc(t, want, b)
+		}
+		t.Run(name, func(t *testing.T) {
+			runTest(t, false)
+		})
+		t.Run(name+"Locked", func(t *testing.T) {
+			runTest(t, true)
+		})
+	}
+}
diff --git a/libgo/go/runtime/mgcsweep.go b/libgo/go/runtime/mgcsweep.go
index c1c6e65..1e959a4 100644
--- a/libgo/go/runtime/mgcsweep.go
+++ b/libgo/go/runtime/mgcsweep.go
@@ -116,12 +116,12 @@
 			atomic.Store(&mheap_.sweepdone, 1)
 			break
 		}
-		if s.state != mSpanInUse {
+		if state := s.state.get(); state != mSpanInUse {
 			// This can happen if direct sweeping already
 			// swept this span, but in that case the sweep
 			// generation should always be up-to-date.
 			if !(s.sweepgen == sg || s.sweepgen == sg+3) {
-				print("runtime: bad span s.state=", s.state, " s.sweepgen=", s.sweepgen, " sweepgen=", sg, "\n")
+				print("runtime: bad span s.state=", state, " s.sweepgen=", s.sweepgen, " sweepgen=", sg, "\n")
 				throw("non in-use span in unswept list")
 			}
 			continue
@@ -213,8 +213,8 @@
 		throw("mspan.sweep: m is not locked")
 	}
 	sweepgen := mheap_.sweepgen
-	if s.state != mSpanInUse || s.sweepgen != sweepgen-1 {
-		print("mspan.sweep: state=", s.state, " sweepgen=", s.sweepgen, " mheap.sweepgen=", sweepgen, "\n")
+	if state := s.state.get(); state != mSpanInUse || s.sweepgen != sweepgen-1 {
+		print("mspan.sweep: state=", state, " sweepgen=", s.sweepgen, " mheap.sweepgen=", sweepgen, "\n")
 		throw("mspan.sweep: bad span state")
 	}
 
@@ -353,8 +353,8 @@
 	if freeToHeap || nfreed == 0 {
 		// The span must be in our exclusive ownership until we update sweepgen,
 		// check for potential races.
-		if s.state != mSpanInUse || s.sweepgen != sweepgen-1 {
-			print("mspan.sweep: state=", s.state, " sweepgen=", s.sweepgen, " mheap.sweepgen=", sweepgen, "\n")
+		if state := s.state.get(); state != mSpanInUse || s.sweepgen != sweepgen-1 {
+			print("mspan.sweep: state=", state, " sweepgen=", s.sweepgen, " mheap.sweepgen=", sweepgen, "\n")
 			throw("mspan.sweep: bad span state after sweep")
 		}
 		// Serialization point.
@@ -388,7 +388,7 @@
 			s.limit = 0 // prevent mlookup from finding this span
 			sysFault(unsafe.Pointer(s.base()), size)
 		} else {
-			mheap_.freeSpan(s, true)
+			mheap_.freeSpan(s)
 		}
 		c.local_nlargefree++
 		c.local_largefree += size
diff --git a/libgo/go/runtime/mgcsweepbuf.go b/libgo/go/runtime/mgcsweepbuf.go
index 0491f7c..7828822 100644
--- a/libgo/go/runtime/mgcsweepbuf.go
+++ b/libgo/go/runtime/mgcsweepbuf.go
@@ -111,8 +111,9 @@
 		unlock(&b.spineLock)
 	}
 
-	// We have a block. Insert the span.
-	block.spans[bottom] = s
+	// We have a block. Insert the span atomically, since there may be
+	// concurrent readers via the block API.
+	atomic.StorepNoWB(unsafe.Pointer(&block.spans[bottom]), unsafe.Pointer(s))
 }
 
 // pop removes and returns a span from buffer b, or nil if b is empty.
@@ -147,7 +148,9 @@
 }
 
 // block returns the spans in the i'th block of buffer b. block is
-// safe to call concurrently with push.
+// safe to call concurrently with push. The block may contain nil
+// pointers that must be ignored, and each entry in the block must be
+// loaded atomically.
 func (b *gcSweepBuf) block(i int) []*mspan {
 	// Perform bounds check before loading spine address since
 	// push ensures the allocated length is at least spineLen.
@@ -169,11 +172,5 @@
 	} else {
 		spans = block.spans[:bottom]
 	}
-
-	// push may have reserved a slot but not filled it yet, so
-	// trim away unused entries.
-	for len(spans) > 0 && spans[len(spans)-1] == nil {
-		spans = spans[:len(spans)-1]
-	}
 	return spans
 }
diff --git a/libgo/go/runtime/mgcwork.go b/libgo/go/runtime/mgcwork.go
index 89d1e0e..a1b61ad 100644
--- a/libgo/go/runtime/mgcwork.go
+++ b/libgo/go/runtime/mgcwork.go
@@ -126,12 +126,12 @@
 	if debugCachedWork {
 		alreadyFailed := w.putGen == w.pauseGen
 		w.putGen = w.pauseGen
-		if m := getg().m; m.locks > 0 || m.mallocing != 0 || m.preemptoff != "" || m.p.ptr().status != _Prunning {
+		if !canPreemptM(getg().m) {
 			// If we were to spin, the runtime may
-			// deadlock: the condition above prevents
-			// preemption (see newstack), which could
-			// prevent gcMarkDone from finishing the
-			// ragged barrier and releasing the spin.
+			// deadlock. Since we can't be preempted, the
+			// spin could prevent gcMarkDone from
+			// finishing the ragged barrier, which is what
+			// releases us from the spin.
 			return
 		}
 		for atomic.Load(&gcWorkPauseGen) == w.pauseGen {
diff --git a/libgo/go/runtime/mheap.go b/libgo/go/runtime/mheap.go
index cd01b3f..f40589a 100644
--- a/libgo/go/runtime/mheap.go
+++ b/libgo/go/runtime/mheap.go
@@ -15,10 +15,19 @@
 	"unsafe"
 )
 
-// minPhysPageSize is a lower-bound on the physical page size. The
-// true physical page size may be larger than this. In contrast,
-// sys.PhysPageSize is an upper-bound on the physical page size.
-const minPhysPageSize = 4096
+const (
+	// minPhysPageSize is a lower-bound on the physical page size. The
+	// true physical page size may be larger than this. In contrast,
+	// sys.PhysPageSize is an upper-bound on the physical page size.
+	minPhysPageSize = 4096
+
+	// maxPhysPageSize is the maximum page size the runtime supports.
+	maxPhysPageSize = 512 << 10
+
+	// maxPhysHugePageSize sets an upper-bound on the maximum huge page size
+	// that the runtime supports.
+	maxPhysHugePageSize = pallocChunkBytes
+)
 
 // Main malloc heap.
 // The heap itself is the "free" and "scav" treaps,
@@ -32,10 +41,10 @@
 	// lock must only be acquired on the system stack, otherwise a g
 	// could self-deadlock if its stack grows with the lock held.
 	lock      mutex
-	free      mTreap // free spans
-	sweepgen  uint32 // sweep generation, see comment in mspan
-	sweepdone uint32 // all spans are swept
-	sweepers  uint32 // number of active sweepone calls
+	pages     pageAlloc // page allocation data structure
+	sweepgen  uint32    // sweep generation, see comment in mspan; written during STW
+	sweepdone uint32    // all spans are swept
+	sweepers  uint32    // number of active sweepone calls
 
 	// allspans is a slice of all mspans ever created. Each mspan
 	// appears exactly once.
@@ -81,7 +90,7 @@
 	// accounting for current progress. If we could only adjust
 	// the slope, it would create a discontinuity in debt if any
 	// progress has already been made.
-	pagesInUse         uint64  // pages of spans in stats mSpanInUse; R/W with mheap.lock
+	pagesInUse         uint64  // pages of spans in stats mSpanInUse; updated atomically
 	pagesSwept         uint64  // pages swept this cycle; updated atomically
 	pagesSweptBasis    uint64  // pagesSwept to use as the origin of the sweep ratio; updated atomically
 	sweepHeapLiveBasis uint64  // value of heap_live to use as the origin of sweep ratio; written with lock, read without
@@ -89,24 +98,10 @@
 	// TODO(austin): pagesInUse should be a uintptr, but the 386
 	// compiler can't 8-byte align fields.
 
-	// Scavenger pacing parameters
-	//
-	// The two basis parameters and the scavenge ratio parallel the proportional
-	// sweeping implementation, the primary differences being that:
-	//  * Scavenging concerns itself with RSS, estimated as heapRetained()
-	//  * Rather than pacing the scavenger to the GC, it is paced to a
-	//    time-based rate computed in gcPaceScavenger.
-	//
-	// scavengeRetainedGoal represents our goal RSS.
-	//
-	// All fields must be accessed with lock.
-	//
-	// TODO(mknyszek): Consider abstracting the basis fields and the scavenge ratio
-	// into its own type so that this logic may be shared with proportional sweeping.
-	scavengeTimeBasis     int64
-	scavengeRetainedBasis uint64
-	scavengeBytesPerNS    float64
-	scavengeRetainedGoal  uint64
+	// scavengeGoal is the amount of total retained heap memory (measured by
+	// heapRetained) that the runtime will try to maintain by returning memory
+	// to the OS.
+	scavengeGoal uint64
 
 	// Page reclaimer state
 
@@ -185,6 +180,12 @@
 	// simply blocking GC (by disabling preemption).
 	sweepArenas []arenaIdx
 
+	// curArena is the arena that the heap is currently growing
+	// into. This should always be physPageSize-aligned.
+	curArena struct {
+		base, end uintptr
+	}
+
 	_ uint32 // ensure 64-bit alignment of central
 
 	// central free lists for small size classes.
@@ -199,7 +200,6 @@
 
 	spanalloc             fixalloc // allocator for span*
 	cachealloc            fixalloc // allocator for mcache*
-	treapalloc            fixalloc // allocator for treapNodes*
 	specialfinalizeralloc fixalloc // allocator for specialfinalizer*
 	specialprofilealloc   fixalloc // allocator for specialprofile*
 	speciallock           mutex    // lock for special record allocators.
@@ -213,10 +213,6 @@
 // A heapArena stores metadata for a heap arena. heapArenas are stored
 // outside of the Go heap and accessed via the mheap_.arenas index.
 //
-// This gets allocated directly from the OS, so ideally it should be a
-// multiple of the system page size. For example, avoid adding small
-// fields.
-//
 //go:notinheap
 type heapArena struct {
 	// bitmap stores the pointer/scalar bitmap for the words in
@@ -242,7 +238,7 @@
 	// but only the bit corresponding to the first page in each
 	// span is used.
 	//
-	// Writes are protected by mheap_.lock.
+	// Reads and writes are atomic.
 	pageInUse [pagesPerArena / 8]uint8
 
 	// pageMarks is a bitmap that indicates which spans have any
@@ -259,6 +255,18 @@
 	// faster scanning, but we don't have 64-bit atomic bit
 	// operations.
 	pageMarks [pagesPerArena / 8]uint8
+
+	// zeroedBase marks the first byte of the first page in this
+	// arena which hasn't been used yet and is therefore already
+	// zero. zeroedBase is relative to the arena base.
+	// Increases monotonically until it hits heapArenaBytes.
+	//
+	// This field is sufficient to determine if an allocation
+	// needs to be zeroed because the page allocator follows an
+	// address-ordered first-fit policy.
+	//
+	// Read atomically and written with an atomic CAS.
+	zeroedBase uintptr
 }
 
 // arenaHint is a hint for where to grow the heap arenas. See
@@ -298,13 +306,20 @@
 // * During GC (gcphase != _GCoff), a span *must not* transition from
 //   manual or in-use to free. Because concurrent GC may read a pointer
 //   and then look up its span, the span state must be monotonic.
+//
+// Setting mspan.state to mSpanInUse or mSpanManual must be done
+// atomically and only after all other span fields are valid.
+// Likewise, if inspecting a span is contingent on it being
+// mSpanInUse, the state should be loaded atomically and checked
+// before depending on other fields. This allows the garbage collector
+// to safely deal with potentially invalid pointers, since resolving
+// such pointers may race with a span being allocated.
 type mSpanState uint8
 
 const (
 	mSpanDead   mSpanState = iota
 	mSpanInUse             // allocated for garbage collected heap
 	mSpanManual            // allocated for manual management (e.g., stack allocator)
-	mSpanFree
 )
 
 // mSpanStateNames are the names of the span states, indexed by
@@ -316,6 +331,21 @@
 	"mSpanFree",
 }
 
+// mSpanStateBox holds an mSpanState and provides atomic operations on
+// it. This is a separate type to disallow accidental comparison or
+// assignment with mSpanState.
+type mSpanStateBox struct {
+	s mSpanState
+}
+
+func (b *mSpanStateBox) set(s mSpanState) {
+	atomic.Store8((*uint8)(&b.s), uint8(s))
+}
+
+func (b *mSpanStateBox) get() mSpanState {
+	return mSpanState(atomic.Load8((*uint8)(&b.s)))
+}
+
 // mSpanList heads a linked list of spans.
 //
 //go:notinheap
@@ -397,19 +427,18 @@
 	// h->sweepgen is incremented by 2 after every GC
 
 	sweepgen    uint32
-	divMul      uint16     // for divide by elemsize - divMagic.mul
-	baseMask    uint16     // if non-0, elemsize is a power of 2, & this will get object allocation base
-	allocCount  uint16     // number of allocated objects
-	spanclass   spanClass  // size class and noscan (uint8)
-	state       mSpanState // mspaninuse etc
-	needzero    uint8      // needs to be zeroed before allocation
-	divShift    uint8      // for divide by elemsize - divMagic.shift
-	divShift2   uint8      // for divide by elemsize - divMagic.shift2
-	scavenged   bool       // whether this span has had its pages released to the OS
-	elemsize    uintptr    // computed from sizeclass or from npages
-	limit       uintptr    // end of data in span
-	speciallock mutex      // guards specials list
-	specials    *special   // linked list of special records sorted by offset.
+	divMul      uint16        // for divide by elemsize - divMagic.mul
+	baseMask    uint16        // if non-0, elemsize is a power of 2, & this will get object allocation base
+	allocCount  uint16        // number of allocated objects
+	spanclass   spanClass     // size class and noscan (uint8)
+	state       mSpanStateBox // mSpanInUse etc; accessed atomically (get/set methods)
+	needzero    uint8         // needs to be zeroed before allocation
+	divShift    uint8         // for divide by elemsize - divMagic.shift
+	divShift2   uint8         // for divide by elemsize - divMagic.shift2
+	elemsize    uintptr       // computed from sizeclass or from npages
+	limit       uintptr       // end of data in span
+	speciallock mutex         // guards specials list
+	specials    *special      // linked list of special records sorted by offset.
 }
 
 func (s *mspan) base() uintptr {
@@ -425,181 +454,6 @@
 	return
 }
 
-// physPageBounds returns the start and end of the span
-// rounded in to the physical page size.
-func (s *mspan) physPageBounds() (uintptr, uintptr) {
-	start := s.base()
-	end := start + s.npages<<_PageShift
-	if physPageSize > _PageSize {
-		// Round start and end in.
-		start = (start + physPageSize - 1) &^ (physPageSize - 1)
-		end &^= physPageSize - 1
-	}
-	return start, end
-}
-
-func (h *mheap) coalesce(s *mspan) {
-	// merge is a helper which merges other into s, deletes references to other
-	// in heap metadata, and then discards it. other must be adjacent to s.
-	merge := func(a, b, other *mspan) {
-		// Caller must ensure a.startAddr < b.startAddr and that either a or
-		// b is s. a and b must be adjacent. other is whichever of the two is
-		// not s.
-
-		if pageSize < physPageSize && a.scavenged && b.scavenged {
-			// If we're merging two scavenged spans on systems where
-			// pageSize < physPageSize, then their boundary should always be on
-			// a physical page boundary, due to the realignment that happens
-			// during coalescing. Throw if this case is no longer true, which
-			// means the implementation should probably be changed to scavenge
-			// along the boundary.
-			_, start := a.physPageBounds()
-			end, _ := b.physPageBounds()
-			if start != end {
-				println("runtime: a.base=", hex(a.base()), "a.npages=", a.npages)
-				println("runtime: b.base=", hex(b.base()), "b.npages=", b.npages)
-				println("runtime: physPageSize=", physPageSize, "pageSize=", pageSize)
-				throw("neighboring scavenged spans boundary is not a physical page boundary")
-			}
-		}
-
-		// Adjust s via base and npages and also in heap metadata.
-		s.npages += other.npages
-		s.needzero |= other.needzero
-		if a == s {
-			h.setSpan(s.base()+s.npages*pageSize-1, s)
-		} else {
-			s.startAddr = other.startAddr
-			h.setSpan(s.base(), s)
-		}
-
-		// The size is potentially changing so the treap needs to delete adjacent nodes and
-		// insert back as a combined node.
-		h.free.removeSpan(other)
-		other.state = mSpanDead
-		h.spanalloc.free(unsafe.Pointer(other))
-	}
-
-	// realign is a helper which shrinks other and grows s such that their
-	// boundary is on a physical page boundary.
-	realign := func(a, b, other *mspan) {
-		// Caller must ensure a.startAddr < b.startAddr and that either a or
-		// b is s. a and b must be adjacent. other is whichever of the two is
-		// not s.
-
-		// If pageSize >= physPageSize then spans are always aligned
-		// to physical page boundaries, so just exit.
-		if pageSize >= physPageSize {
-			return
-		}
-		// Since we're resizing other, we must remove it from the treap.
-		h.free.removeSpan(other)
-
-		// Round boundary to the nearest physical page size, toward the
-		// scavenged span.
-		boundary := b.startAddr
-		if a.scavenged {
-			boundary &^= (physPageSize - 1)
-		} else {
-			boundary = (boundary + physPageSize - 1) &^ (physPageSize - 1)
-		}
-		a.npages = (boundary - a.startAddr) / pageSize
-		b.npages = (b.startAddr + b.npages*pageSize - boundary) / pageSize
-		b.startAddr = boundary
-
-		h.setSpan(boundary-1, a)
-		h.setSpan(boundary, b)
-
-		// Re-insert other now that it has a new size.
-		h.free.insert(other)
-	}
-
-	hpMiddle := s.hugePages()
-
-	// Coalesce with earlier, later spans.
-	var hpBefore uintptr
-	if before := spanOf(s.base() - 1); before != nil && before.state == mSpanFree {
-		if s.scavenged == before.scavenged {
-			hpBefore = before.hugePages()
-			merge(before, s, before)
-		} else {
-			realign(before, s, before)
-		}
-	}
-
-	// Now check to see if next (greater addresses) span is free and can be coalesced.
-	var hpAfter uintptr
-	if after := spanOf(s.base() + s.npages*pageSize); after != nil && after.state == mSpanFree {
-		if s.scavenged == after.scavenged {
-			hpAfter = after.hugePages()
-			merge(s, after, after)
-		} else {
-			realign(s, after, after)
-		}
-	}
-	if !s.scavenged && s.hugePages() > hpBefore+hpMiddle+hpAfter {
-		// If s has grown such that it now may contain more huge pages than it
-		// and its now-coalesced neighbors did before, then mark the whole region
-		// as huge-page-backable.
-		//
-		// Otherwise, on systems where we break up huge pages (like Linux)
-		// s may not be backed by huge pages because it could be made up of
-		// pieces which are broken up in the underlying VMA. The primary issue
-		// with this is that it can lead to a poor estimate of the amount of
-		// free memory backed by huge pages for determining the scavenging rate.
-		//
-		// TODO(mknyszek): Measure the performance characteristics of sysHugePage
-		// and determine whether it makes sense to only sysHugePage on the pages
-		// that matter, or if it's better to just mark the whole region.
-		sysHugePage(unsafe.Pointer(s.base()), s.npages*pageSize)
-	}
-}
-
-// hugePages returns the number of aligned physical huge pages in the memory
-// regioned owned by this mspan.
-func (s *mspan) hugePages() uintptr {
-	if physHugePageSize == 0 || s.npages < physHugePageSize/pageSize {
-		return 0
-	}
-	start := s.base()
-	end := start + s.npages*pageSize
-	if physHugePageSize > pageSize {
-		// Round start and end in.
-		start = (start + physHugePageSize - 1) &^ (physHugePageSize - 1)
-		end &^= physHugePageSize - 1
-	}
-	if start < end {
-		return (end - start) >> physHugePageShift
-	}
-	return 0
-}
-
-func (s *mspan) scavenge() uintptr {
-	// start and end must be rounded in, otherwise madvise
-	// will round them *out* and release more memory
-	// than we want.
-	start, end := s.physPageBounds()
-	if end <= start {
-		// start and end don't span a whole physical page.
-		return 0
-	}
-	released := end - start
-	memstats.heap_released += uint64(released)
-	s.scavenged = true
-	sysUnused(unsafe.Pointer(start), released)
-	return released
-}
-
-// released returns the number of bytes in this span
-// which were returned back to the OS.
-func (s *mspan) released() uintptr {
-	if !s.scavenged {
-		return 0
-	}
-	start, end := s.physPageBounds()
-	return end - start
-}
-
 // recordspan adds a newly allocated span to h.allspans.
 //
 // This only happens the first time a span is allocated from
@@ -726,7 +580,7 @@
 	if s == nil || b < s.base() {
 		return false
 	}
-	switch s.state {
+	switch s.state.get() {
 	case mSpanInUse, mSpanManual:
 		return b < s.limit
 	default:
@@ -793,9 +647,12 @@
 //go:nosplit
 func spanOfHeap(p uintptr) *mspan {
 	s := spanOf(p)
-	// If p is not allocated, it may point to a stale span, so we
-	// have to check the span's bounds and state.
-	if s == nil || p < s.base() || p >= s.limit || s.state != mSpanInUse {
+	// s is nil if it's never been allocated. Otherwise, we check
+	// its state first because we don't trust this pointer, so we
+	// have to synchronize with span initialization. Then, it's
+	// still possible we picked up a stale span pointer, so we
+	// have to check the span's bounds.
+	if s == nil || s.state.get() != mSpanInUse || p < s.base() || p >= s.limit {
 		return nil
 	}
 	return s
@@ -813,7 +670,6 @@
 
 // Initialize the heap.
 func (h *mheap) init() {
-	h.treapalloc.init(unsafe.Sizeof(treapNode{}), nil, nil, &memstats.other_sys)
 	h.spanalloc.init(unsafe.Sizeof(mspan{}), recordspan, unsafe.Pointer(h), &memstats.mspan_sys)
 	h.cachealloc.init(unsafe.Sizeof(mcache{}), nil, nil, &memstats.mcache_sys)
 	h.specialfinalizeralloc.init(unsafe.Sizeof(specialfinalizer{}), nil, nil, &memstats.other_sys)
@@ -834,6 +690,8 @@
 	for i := range h.central {
 		h.central[i].mcentral.init(spanClass(i))
 	}
+
+	h.pages.init(&h.lock, &memstats.gc_sys)
 }
 
 // reclaim sweeps and reclaims at least npage pages into the heap.
@@ -954,7 +812,7 @@
 		// Scan this bitmap chunk for spans that are in-use
 		// but have no marked objects on them.
 		for i := range inUse {
-			inUseUnmarked := inUse[i] &^ marked[i]
+			inUseUnmarked := atomic.Load8(&inUse[i]) &^ marked[i]
 			if inUseUnmarked == 0 {
 				continue
 			}
@@ -973,7 +831,7 @@
 						// spans were freed when we dropped the
 						// lock and we don't want to get stale
 						// pointers from the spans array.
-						inUseUnmarked = inUse[i] &^ marked[i]
+						inUseUnmarked = atomic.Load8(&inUse[i]) &^ marked[i]
 					}
 				}
 			}
@@ -990,100 +848,23 @@
 	return nFreed
 }
 
-// alloc_m is the internal implementation of mheap.alloc.
-//
-// alloc_m must run on the system stack because it locks the heap, so
-// any stack growth during alloc_m would self-deadlock.
-//
-//go:systemstack
-func (h *mheap) alloc_m(npage uintptr, spanclass spanClass, large bool) *mspan {
-	_g_ := getg()
-
-	// To prevent excessive heap growth, before allocating n pages
-	// we need to sweep and reclaim at least n pages.
-	if h.sweepdone == 0 {
-		h.reclaim(npage)
-	}
-
-	lock(&h.lock)
-	// transfer stats from cache to global
-	memstats.heap_scan += uint64(_g_.m.mcache.local_scan)
-	_g_.m.mcache.local_scan = 0
-	memstats.tinyallocs += uint64(_g_.m.mcache.local_tinyallocs)
-	_g_.m.mcache.local_tinyallocs = 0
-
-	s := h.allocSpanLocked(npage, &memstats.heap_inuse)
-	if s != nil {
-		// Record span info, because gc needs to be
-		// able to map interior pointer to containing span.
-		atomic.Store(&s.sweepgen, h.sweepgen)
-		h.sweepSpans[h.sweepgen/2%2].push(s) // Add to swept in-use list.
-		s.state = mSpanInUse
-		s.allocCount = 0
-		s.spanclass = spanclass
-		if sizeclass := spanclass.sizeclass(); sizeclass == 0 {
-			s.elemsize = s.npages << _PageShift
-			s.divShift = 0
-			s.divMul = 0
-			s.divShift2 = 0
-			s.baseMask = 0
-		} else {
-			s.elemsize = uintptr(class_to_size[sizeclass])
-			m := &class_to_divmagic[sizeclass]
-			s.divShift = m.shift
-			s.divMul = m.mul
-			s.divShift2 = m.shift2
-			s.baseMask = m.baseMask
-		}
-
-		// Mark in-use span in arena page bitmap.
-		arena, pageIdx, pageMask := pageIndexOf(s.base())
-		arena.pageInUse[pageIdx] |= pageMask
-
-		// update stats, sweep lists
-		h.pagesInUse += uint64(npage)
-		if large {
-			memstats.heap_objects++
-			mheap_.largealloc += uint64(s.elemsize)
-			mheap_.nlargealloc++
-			atomic.Xadd64(&memstats.heap_live, int64(npage<<_PageShift))
-		}
-	}
-	// heap_scan and heap_live were updated.
-	if gcBlackenEnabled != 0 {
-		gcController.revise()
-	}
-
-	if trace.enabled {
-		traceHeapAlloc()
-	}
-
-	// h.spans is accessed concurrently without synchronization
-	// from other threads. Hence, there must be a store/store
-	// barrier here to ensure the writes to h.spans above happen
-	// before the caller can publish a pointer p to an object
-	// allocated from s. As soon as this happens, the garbage
-	// collector running on another processor could read p and
-	// look up s in h.spans. The unlock acts as the barrier to
-	// order these writes. On the read side, the data dependency
-	// between p and the index in h.spans orders the reads.
-	unlock(&h.lock)
-	return s
-}
-
 // alloc allocates a new span of npage pages from the GC'd heap.
 //
-// Either large must be true or spanclass must indicates the span's
-// size class and scannability.
+// spanclass indicates the span's size class and scannability.
 //
 // If needzero is true, the memory for the returned span will be zeroed.
-func (h *mheap) alloc(npage uintptr, spanclass spanClass, large bool, needzero bool) *mspan {
+func (h *mheap) alloc(npages uintptr, spanclass spanClass, needzero bool) *mspan {
 	// Don't do any operations that lock the heap on the G stack.
 	// It might trigger stack growth, and the stack growth code needs
 	// to be able to allocate heap.
 	var s *mspan
 	systemstack(func() {
-		s = h.alloc_m(npage, spanclass, large)
+		// To prevent excessive heap growth, before allocating n pages
+		// we need to sweep and reclaim at least n pages.
+		if h.sweepdone == 0 {
+			h.reclaim(npages)
+		}
+		s = h.allocSpan(npages, false, spanclass, &memstats.heap_inuse)
 	})
 
 	if s != nil {
@@ -1105,35 +886,12 @@
 // The memory backing the returned span may not be zeroed if
 // span.needzero is set.
 //
-// allocManual must be called on the system stack because it acquires
-// the heap lock. See mheap for details.
+// allocManual must be called on the system stack because it may
+// acquire the heap lock via allocSpan. See mheap for details.
 //
 //go:systemstack
-func (h *mheap) allocManual(npage uintptr, stat *uint64) *mspan {
-	lock(&h.lock)
-	s := h.allocSpanLocked(npage, stat)
-	if s != nil {
-		s.state = mSpanManual
-		s.manualFreeList = 0
-		s.allocCount = 0
-		s.spanclass = 0
-		s.nelems = 0
-		s.elemsize = 0
-		s.limit = s.base() + s.npages<<_PageShift
-		// Manually managed memory doesn't count toward heap_sys.
-		memstats.heap_sys -= uint64(s.npages << _PageShift)
-	}
-
-	// This unlock acts as a release barrier. See mheap.alloc_m.
-	unlock(&h.lock)
-
-	return s
-}
-
-// setSpan modifies the span map so spanOf(base) is s.
-func (h *mheap) setSpan(base uintptr, s *mspan) {
-	ai := arenaIndex(base)
-	h.arenas[ai.l1()][ai.l2()].spans[(base/pageSize)%pagesPerArena] = s
+func (h *mheap) allocManual(npages uintptr, stat *uint64) *mspan {
+	return h.allocSpan(npages, true, 0, stat)
 }
 
 // setSpans modifies the span map so [spanOf(base), spanOf(base+npage*pageSize))
@@ -1152,93 +910,357 @@
 	}
 }
 
-// Allocates a span of the given size.  h must be locked.
-// The returned span has been removed from the
-// free structures, but its state is still mSpanFree.
-func (h *mheap) allocSpanLocked(npage uintptr, stat *uint64) *mspan {
-	t := h.free.find(npage)
-	if t.valid() {
-		goto HaveSpan
+// allocNeedsZero checks if the region of address space [base, base+npage*pageSize),
+// assumed to be allocated, needs to be zeroed, updating heap arena metadata for
+// future allocations.
+//
+// This must be called each time pages are allocated from the heap, even if the page
+// allocator can otherwise prove the memory it's allocating is already zero because
+// they're fresh from the operating system. It updates heapArena metadata that is
+// critical for future page allocations.
+//
+// There are no locking constraints on this method.
+func (h *mheap) allocNeedsZero(base, npage uintptr) (needZero bool) {
+	for npage > 0 {
+		ai := arenaIndex(base)
+		ha := h.arenas[ai.l1()][ai.l2()]
+
+		zeroedBase := atomic.Loaduintptr(&ha.zeroedBase)
+		arenaBase := base % heapArenaBytes
+		if arenaBase < zeroedBase {
+			// We extended into the non-zeroed part of the
+			// arena, so this region needs to be zeroed before use.
+			//
+			// zeroedBase is monotonically increasing, so if we see this now then
+			// we can be sure we need to zero this memory region.
+			//
+			// We still need to update zeroedBase for this arena, and
+			// potentially more arenas.
+			needZero = true
+		}
+		// We may observe arenaBase > zeroedBase if we're racing with one or more
+		// allocations which are acquiring memory directly before us in the address
+		// space. But, because we know no one else is acquiring *this* memory, it's
+		// still safe to not zero.
+
+		// Compute how far into the arena we extend into, capped
+		// at heapArenaBytes.
+		arenaLimit := arenaBase + npage*pageSize
+		if arenaLimit > heapArenaBytes {
+			arenaLimit = heapArenaBytes
+		}
+		// Increase ha.zeroedBase so it's >= arenaLimit.
+		// We may be racing with other updates.
+		for arenaLimit > zeroedBase {
+			if atomic.Casuintptr(&ha.zeroedBase, zeroedBase, arenaLimit) {
+				break
+			}
+			zeroedBase = atomic.Loaduintptr(&ha.zeroedBase)
+			// Sanity check zeroedBase.
+			if zeroedBase <= arenaLimit && zeroedBase > arenaBase {
+				// The zeroedBase moved into the space we were trying to
+				// claim. That's very bad, and indicates someone allocated
+				// the same region we did.
+				throw("potentially overlapping in-use allocations detected")
+			}
+		}
+
+		// Move base forward and subtract from npage to move into
+		// the next arena, or finish.
+		base += arenaLimit - arenaBase
+		npage -= (arenaLimit - arenaBase) / pageSize
 	}
-	if !h.grow(npage) {
+	return
+}
+
+// tryAllocMSpan attempts to allocate an mspan object from
+// the P-local cache, but may fail.
+//
+// h need not be locked.
+//
+// This caller must ensure that its P won't change underneath
+// it during this function. Currently to ensure that we enforce
+// that the function is run on the system stack, because that's
+// the only place it is used now. In the future, this requirement
+// may be relaxed if its use is necessary elsewhere.
+//
+//go:systemstack
+func (h *mheap) tryAllocMSpan() *mspan {
+	pp := getg().m.p.ptr()
+	// If we don't have a p or the cache is empty, we can't do
+	// anything here.
+	if pp == nil || pp.mspancache.len == 0 {
 		return nil
 	}
-	t = h.free.find(npage)
-	if t.valid() {
-		goto HaveSpan
+	// Pull off the last entry in the cache.
+	s := pp.mspancache.buf[pp.mspancache.len-1]
+	pp.mspancache.len--
+	return s
+}
+
+// allocMSpanLocked allocates an mspan object.
+//
+// h must be locked.
+//
+// allocMSpanLocked must be called on the system stack because
+// its caller holds the heap lock. See mheap for details.
+// Running on the system stack also ensures that we won't
+// switch Ps during this function. See tryAllocMSpan for details.
+//
+//go:systemstack
+func (h *mheap) allocMSpanLocked() *mspan {
+	pp := getg().m.p.ptr()
+	if pp == nil {
+		// We don't have a p so just do the normal thing.
+		return (*mspan)(h.spanalloc.alloc())
 	}
-	throw("grew heap, but no adequate free span found")
+	// Refill the cache if necessary.
+	if pp.mspancache.len == 0 {
+		const refillCount = len(pp.mspancache.buf) / 2
+		for i := 0; i < refillCount; i++ {
+			pp.mspancache.buf[i] = (*mspan)(h.spanalloc.alloc())
+		}
+		pp.mspancache.len = refillCount
+	}
+	// Pull off the last entry in the cache.
+	s := pp.mspancache.buf[pp.mspancache.len-1]
+	pp.mspancache.len--
+	return s
+}
+
+// freeMSpanLocked free an mspan object.
+//
+// h must be locked.
+//
+// freeMSpanLocked must be called on the system stack because
+// its caller holds the heap lock. See mheap for details.
+// Running on the system stack also ensures that we won't
+// switch Ps during this function. See tryAllocMSpan for details.
+//
+//go:systemstack
+func (h *mheap) freeMSpanLocked(s *mspan) {
+	pp := getg().m.p.ptr()
+	// First try to free the mspan directly to the cache.
+	if pp != nil && pp.mspancache.len < len(pp.mspancache.buf) {
+		pp.mspancache.buf[pp.mspancache.len] = s
+		pp.mspancache.len++
+		return
+	}
+	// Failing that (or if we don't have a p), just free it to
+	// the heap.
+	h.spanalloc.free(unsafe.Pointer(s))
+}
+
+// allocSpan allocates an mspan which owns npages worth of memory.
+//
+// If manual == false, allocSpan allocates a heap span of class spanclass
+// and updates heap accounting. If manual == true, allocSpan allocates a
+// manually-managed span (spanclass is ignored), and the caller is
+// responsible for any accounting related to its use of the span. Either
+// way, allocSpan will atomically add the bytes in the newly allocated
+// span to *sysStat.
+//
+// The returned span is fully initialized.
+//
+// h must not be locked.
+//
+// allocSpan must be called on the system stack both because it acquires
+// the heap lock and because it must block GC transitions.
+//
+//go:systemstack
+func (h *mheap) allocSpan(npages uintptr, manual bool, spanclass spanClass, sysStat *uint64) (s *mspan) {
+	// Function-global state.
+	gp := getg()
+	base, scav := uintptr(0), uintptr(0)
+
+	// If the allocation is small enough, try the page cache!
+	pp := gp.m.p.ptr()
+	if pp != nil && npages < pageCachePages/4 {
+		c := &pp.pcache
+
+		// If the cache is empty, refill it.
+		if c.empty() {
+			lock(&h.lock)
+			*c = h.pages.allocToCache()
+			unlock(&h.lock)
+		}
+
+		// Try to allocate from the cache.
+		base, scav = c.alloc(npages)
+		if base != 0 {
+			s = h.tryAllocMSpan()
+
+			if s != nil && gcBlackenEnabled == 0 && (manual || spanclass.sizeclass() != 0) {
+				goto HaveSpan
+			}
+			// We're either running duing GC, failed to acquire a mspan,
+			// or the allocation is for a large object. This means we
+			// have to lock the heap and do a bunch of extra work,
+			// so go down the HaveBaseLocked path.
+			//
+			// We must do this during GC to avoid skew with heap_scan
+			// since we flush mcache stats whenever we lock.
+			//
+			// TODO(mknyszek): It would be nice to not have to
+			// lock the heap if it's a large allocation, but
+			// it's fine for now. The critical section here is
+			// short and large object allocations are relatively
+			// infrequent.
+		}
+	}
+
+	// For one reason or another, we couldn't get the
+	// whole job done without the heap lock.
+	lock(&h.lock)
+
+	if base == 0 {
+		// Try to acquire a base address.
+		base, scav = h.pages.alloc(npages)
+		if base == 0 {
+			if !h.grow(npages) {
+				unlock(&h.lock)
+				return nil
+			}
+			base, scav = h.pages.alloc(npages)
+			if base == 0 {
+				throw("grew heap, but no adequate free space found")
+			}
+		}
+	}
+	if s == nil {
+		// We failed to get an mspan earlier, so grab
+		// one now that we have the heap lock.
+		s = h.allocMSpanLocked()
+	}
+	if !manual {
+		// This is a heap span, so we should do some additional accounting
+		// which may only be done with the heap locked.
+
+		// Transfer stats from mcache to global.
+		memstats.heap_scan += uint64(gp.m.mcache.local_scan)
+		gp.m.mcache.local_scan = 0
+		memstats.tinyallocs += uint64(gp.m.mcache.local_tinyallocs)
+		gp.m.mcache.local_tinyallocs = 0
+
+		// Do some additional accounting if it's a large allocation.
+		if spanclass.sizeclass() == 0 {
+			mheap_.largealloc += uint64(npages * pageSize)
+			mheap_.nlargealloc++
+			atomic.Xadd64(&memstats.heap_live, int64(npages*pageSize))
+		}
+
+		// Either heap_live or heap_scan could have been updated.
+		if gcBlackenEnabled != 0 {
+			gcController.revise()
+		}
+	}
+	unlock(&h.lock)
 
 HaveSpan:
-	s := t.span()
-	if s.state != mSpanFree {
-		throw("candidate mspan for allocation is not free")
+	// At this point, both s != nil and base != 0, and the heap
+	// lock is no longer held. Initialize the span.
+	s.init(base, npages)
+	if h.allocNeedsZero(base, npages) {
+		s.needzero = 1
 	}
-
-	// First, subtract any memory that was released back to
-	// the OS from s. We will add back what's left if necessary.
-	memstats.heap_released -= uint64(s.released())
-
-	if s.npages == npage {
-		h.free.erase(t)
-	} else if s.npages > npage {
-		// Trim off the lower bits and make that our new span.
-		// Do this in-place since this operation does not
-		// affect the original span's location in the treap.
-		n := (*mspan)(h.spanalloc.alloc())
-		h.free.mutate(t, func(s *mspan) {
-			n.init(s.base(), npage)
-			s.npages -= npage
-			s.startAddr = s.base() + npage*pageSize
-			h.setSpan(s.base()-1, n)
-			h.setSpan(s.base(), s)
-			h.setSpan(n.base(), n)
-			n.needzero = s.needzero
-			// n may not be big enough to actually be scavenged, but that's fine.
-			// We still want it to appear to be scavenged so that we can do the
-			// right bookkeeping later on in this function (i.e. sysUsed).
-			n.scavenged = s.scavenged
-			// Check if s is still scavenged.
-			if s.scavenged {
-				start, end := s.physPageBounds()
-				if start < end {
-					memstats.heap_released += uint64(end - start)
-				} else {
-					s.scavenged = false
-				}
-			}
-		})
-		s = n
+	nbytes := npages * pageSize
+	if manual {
+		s.manualFreeList = 0
+		s.nelems = 0
+		s.limit = s.base() + s.npages*pageSize
+		// Manually managed memory doesn't count toward heap_sys.
+		mSysStatDec(&memstats.heap_sys, s.npages*pageSize)
+		s.state.set(mSpanManual)
 	} else {
-		throw("candidate mspan for allocation is too small")
+		// We must set span properties before the span is published anywhere
+		// since we're not holding the heap lock.
+		s.spanclass = spanclass
+		if sizeclass := spanclass.sizeclass(); sizeclass == 0 {
+			s.elemsize = nbytes
+			s.nelems = 1
+
+			s.divShift = 0
+			s.divMul = 0
+			s.divShift2 = 0
+			s.baseMask = 0
+		} else {
+			s.elemsize = uintptr(class_to_size[sizeclass])
+			s.nelems = nbytes / s.elemsize
+
+			m := &class_to_divmagic[sizeclass]
+			s.divShift = m.shift
+			s.divMul = m.mul
+			s.divShift2 = m.shift2
+			s.baseMask = m.baseMask
+		}
+
+		// Initialize mark and allocation structures.
+		s.freeindex = 0
+		s.allocCache = ^uint64(0) // all 1s indicating all free.
+		s.gcmarkBits = newMarkBits(s.nelems)
+		s.allocBits = newAllocBits(s.nelems)
+
+		// It's safe to access h.sweepgen without the heap lock because it's
+		// only ever updated with the world stopped and we run on the
+		// systemstack which blocks a STW transition.
+		atomic.Store(&s.sweepgen, h.sweepgen)
+
+		// Now that the span is filled in, set its state. This
+		// is a publication barrier for the other fields in
+		// the span. While valid pointers into this span
+		// should never be visible until the span is returned,
+		// if the garbage collector finds an invalid pointer,
+		// access to the span may race with initialization of
+		// the span. We resolve this race by atomically
+		// setting the state after the span is fully
+		// initialized, and atomically checking the state in
+		// any situation where a pointer is suspect.
+		s.state.set(mSpanInUse)
 	}
-	// "Unscavenge" s only AFTER splitting so that
-	// we only sysUsed whatever we actually need.
-	if s.scavenged {
+
+	// Commit and account for any scavenged memory that the span now owns.
+	if scav != 0 {
 		// sysUsed all the pages that are actually available
-		// in the span. Note that we don't need to decrement
-		// heap_released since we already did so earlier.
-		sysUsed(unsafe.Pointer(s.base()), s.npages<<_PageShift)
-		s.scavenged = false
-
-		// Since we allocated out of a scavenged span, we just
-		// grew the RSS. Mitigate this by scavenging enough free
-		// space to make up for it but only if we need to.
-		//
-		// scavengeLocked may cause coalescing, so prevent
-		// coalescing with s by temporarily changing its state.
-		s.state = mSpanManual
-		h.scavengeIfNeededLocked(s.npages * pageSize)
-		s.state = mSpanFree
+		// in the span since some of them might be scavenged.
+		sysUsed(unsafe.Pointer(base), nbytes)
+		mSysStatDec(&memstats.heap_released, scav)
 	}
+	// Update stats.
+	mSysStatInc(sysStat, nbytes)
+	mSysStatDec(&memstats.heap_idle, nbytes)
 
-	h.setSpans(s.base(), npage, s)
+	// Publish the span in various locations.
 
-	*stat += uint64(npage << _PageShift)
-	memstats.heap_idle -= uint64(npage << _PageShift)
+	// This is safe to call without the lock held because the slots
+	// related to this span will only every be read or modified by
+	// this thread until pointers into the span are published or
+	// pageInUse is updated.
+	h.setSpans(s.base(), npages, s)
 
-	if s.inList() {
-		throw("still in list")
+	if !manual {
+		// Add to swept in-use list.
+		//
+		// This publishes the span to root marking.
+		//
+		// h.sweepgen is guaranteed to only change during STW,
+		// and preemption is disabled in the page allocator.
+		h.sweepSpans[h.sweepgen/2%2].push(s)
+
+		// Mark in-use span in arena page bitmap.
+		//
+		// This publishes the span to the page sweeper, so
+		// it's imperative that the span be completely initialized
+		// prior to this line.
+		arena, pageIdx, pageMask := pageIndexOf(s.base())
+		atomic.Or8(&arena.pageInUse[pageIdx], pageMask)
+
+		// Update related page sweeper stats.
+		atomic.Xadd64(&h.pagesInUse, int64(npages))
+
+		if trace.enabled {
+			// Trace that a heap alloc occurred.
+			traceHeapAlloc()
+		}
 	}
 	return s
 }
@@ -1248,37 +1270,73 @@
 //
 // h must be locked.
 func (h *mheap) grow(npage uintptr) bool {
-	ask := npage << _PageShift
-	v, size := h.sysAlloc(ask)
-	if v == nil {
-		print("runtime: out of memory: cannot allocate ", ask, "-byte block (", memstats.heap_sys, " in use)\n")
-		return false
+	// We must grow the heap in whole palloc chunks.
+	ask := alignUp(npage, pallocChunkPages) * pageSize
+
+	totalGrowth := uintptr(0)
+	nBase := alignUp(h.curArena.base+ask, physPageSize)
+	if nBase > h.curArena.end {
+		// Not enough room in the current arena. Allocate more
+		// arena space. This may not be contiguous with the
+		// current arena, so we have to request the full ask.
+		av, asize := h.sysAlloc(ask)
+		if av == nil {
+			print("runtime: out of memory: cannot allocate ", ask, "-byte block (", memstats.heap_sys, " in use)\n")
+			return false
+		}
+
+		if uintptr(av) == h.curArena.end {
+			// The new space is contiguous with the old
+			// space, so just extend the current space.
+			h.curArena.end = uintptr(av) + asize
+		} else {
+			// The new space is discontiguous. Track what
+			// remains of the current space and switch to
+			// the new space. This should be rare.
+			if size := h.curArena.end - h.curArena.base; size != 0 {
+				h.pages.grow(h.curArena.base, size)
+				totalGrowth += size
+			}
+			// Switch to the new space.
+			h.curArena.base = uintptr(av)
+			h.curArena.end = uintptr(av) + asize
+		}
+
+		// The memory just allocated counts as both released
+		// and idle, even though it's not yet backed by spans.
+		//
+		// The allocation is always aligned to the heap arena
+		// size which is always > physPageSize, so its safe to
+		// just add directly to heap_released.
+		mSysStatInc(&memstats.heap_released, asize)
+		mSysStatInc(&memstats.heap_idle, asize)
+
+		// Recalculate nBase
+		nBase = alignUp(h.curArena.base+ask, physPageSize)
 	}
 
-	// Create a fake "in use" span and free it, so that the
-	// right accounting and coalescing happens.
-	s := (*mspan)(h.spanalloc.alloc())
-	s.init(uintptr(v), size/pageSize)
-	h.setSpans(s.base(), s.npages, s)
-	s.state = mSpanFree
-	memstats.heap_idle += uint64(size)
-	// (*mheap).sysAlloc returns untouched/uncommitted memory.
-	s.scavenged = true
-	// s is always aligned to the heap arena size which is always > physPageSize,
-	// so its totally safe to just add directly to heap_released. Coalescing,
-	// if possible, will also always be correct in terms of accounting, because
-	// s.base() must be a physical page boundary.
-	memstats.heap_released += uint64(size)
-	h.coalesce(s)
-	h.free.insert(s)
+	// Grow into the current arena.
+	v := h.curArena.base
+	h.curArena.base = nBase
+	h.pages.grow(v, nBase-v)
+	totalGrowth += nBase - v
+
+	// We just caused a heap growth, so scavenge down what will soon be used.
+	// By scavenging inline we deal with the failure to allocate out of
+	// memory fragments by scavenging the memory fragments that are least
+	// likely to be re-used.
+	if retained := heapRetained(); retained+uint64(totalGrowth) > h.scavengeGoal {
+		todo := totalGrowth
+		if overage := uintptr(retained + uint64(totalGrowth) - h.scavengeGoal); todo > overage {
+			todo = overage
+		}
+		h.pages.scavenge(todo, true)
+	}
 	return true
 }
 
 // Free the span back into the heap.
-//
-// large must match the value of large passed to mheap.alloc. This is
-// used for accounting.
-func (h *mheap) freeSpan(s *mspan, large bool) {
+func (h *mheap) freeSpan(s *mspan) {
 	systemstack(func() {
 		mp := getg().m
 		lock(&h.lock)
@@ -1292,10 +1350,6 @@
 			bytes := s.npages << _PageShift
 			msanfree(base, bytes)
 		}
-		if large {
-			// Match accounting done in mheap.alloc.
-			memstats.heap_objects--
-		}
 		if gcBlackenEnabled != 0 {
 			// heap_scan changed.
 			gcController.revise()
@@ -1319,14 +1373,14 @@
 func (h *mheap) freeManual(s *mspan, stat *uint64) {
 	s.needzero = 1
 	lock(&h.lock)
-	*stat -= uint64(s.npages << _PageShift)
-	memstats.heap_sys += uint64(s.npages << _PageShift)
+	mSysStatDec(stat, s.npages*pageSize)
+	mSysStatInc(&memstats.heap_sys, s.npages*pageSize)
 	h.freeSpanLocked(s, false, true)
 	unlock(&h.lock)
 }
 
 func (h *mheap) freeSpanLocked(s *mspan, acctinuse, acctidle bool) {
-	switch s.state {
+	switch s.state.get() {
 	case mSpanManual:
 		if s.allocCount != 0 {
 			throw("mheap.freeSpanLocked - invalid stack free")
@@ -1336,140 +1390,28 @@
 			print("mheap.freeSpanLocked - span ", s, " ptr ", hex(s.base()), " allocCount ", s.allocCount, " sweepgen ", s.sweepgen, "/", h.sweepgen, "\n")
 			throw("mheap.freeSpanLocked - invalid free")
 		}
-		h.pagesInUse -= uint64(s.npages)
+		atomic.Xadd64(&h.pagesInUse, -int64(s.npages))
 
 		// Clear in-use bit in arena page bitmap.
 		arena, pageIdx, pageMask := pageIndexOf(s.base())
-		arena.pageInUse[pageIdx] &^= pageMask
+		atomic.And8(&arena.pageInUse[pageIdx], ^pageMask)
 	default:
 		throw("mheap.freeSpanLocked - invalid span state")
 	}
 
 	if acctinuse {
-		memstats.heap_inuse -= uint64(s.npages << _PageShift)
+		mSysStatDec(&memstats.heap_inuse, s.npages*pageSize)
 	}
 	if acctidle {
-		memstats.heap_idle += uint64(s.npages << _PageShift)
-	}
-	s.state = mSpanFree
-
-	// Coalesce span with neighbors.
-	h.coalesce(s)
-
-	// Insert s into the treap.
-	h.free.insert(s)
-}
-
-// scavengeSplit takes t.span() and attempts to split off a span containing size
-// (in bytes) worth of physical pages from the back.
-//
-// The split point is only approximately defined by size since the split point
-// is aligned to physPageSize and pageSize every time. If physHugePageSize is
-// non-zero and the split point would break apart a huge page in the span, then
-// the split point is also aligned to physHugePageSize.
-//
-// If the desired split point ends up at the base of s, or if size is obviously
-// much larger than s, then a split is not possible and this method returns nil.
-// Otherwise if a split occurred it returns the newly-created span.
-func (h *mheap) scavengeSplit(t treapIter, size uintptr) *mspan {
-	s := t.span()
-	start, end := s.physPageBounds()
-	if end <= start || end-start <= size {
-		// Size covers the whole span.
-		return nil
-	}
-	// The span is bigger than what we need, so compute the base for the new
-	// span if we decide to split.
-	base := end - size
-	// Round down to the next physical or logical page, whichever is bigger.
-	base &^= (physPageSize - 1) | (pageSize - 1)
-	if base <= start {
-		return nil
-	}
-	if physHugePageSize > pageSize && base&^(physHugePageSize-1) >= start {
-		// We're in danger of breaking apart a huge page, so include the entire
-		// huge page in the bound by rounding down to the huge page size.
-		// base should still be aligned to pageSize.
-		base &^= physHugePageSize - 1
-	}
-	if base == start {
-		// After all that we rounded base down to s.base(), so no need to split.
-		return nil
-	}
-	if base < start {
-		print("runtime: base=", base, ", s.npages=", s.npages, ", s.base()=", s.base(), ", size=", size, "\n")
-		print("runtime: physPageSize=", physPageSize, ", physHugePageSize=", physHugePageSize, "\n")
-		throw("bad span split base")
+		mSysStatInc(&memstats.heap_idle, s.npages*pageSize)
 	}
 
-	// Split s in-place, removing from the back.
-	n := (*mspan)(h.spanalloc.alloc())
-	nbytes := s.base() + s.npages*pageSize - base
-	h.free.mutate(t, func(s *mspan) {
-		n.init(base, nbytes/pageSize)
-		s.npages -= nbytes / pageSize
-		h.setSpan(n.base()-1, s)
-		h.setSpan(n.base(), n)
-		h.setSpan(n.base()+nbytes-1, n)
-		n.needzero = s.needzero
-		n.state = s.state
-	})
-	return n
-}
+	// Mark the space as free.
+	h.pages.free(s.base(), s.npages)
 
-// scavengeLocked scavenges nbytes worth of spans in the free treap by
-// starting from the span with the highest base address and working down.
-// It then takes those spans and places them in scav.
-//
-// Returns the amount of memory scavenged in bytes. h must be locked.
-func (h *mheap) scavengeLocked(nbytes uintptr) uintptr {
-	released := uintptr(0)
-	// Iterate over spans with huge pages first, then spans without.
-	const mask = treapIterScav | treapIterHuge
-	for _, match := range []treapIterType{treapIterHuge, 0} {
-		// Iterate over the treap backwards (from highest address to lowest address)
-		// scavenging spans until we've reached our quota of nbytes.
-		for t := h.free.end(mask, match); released < nbytes && t.valid(); {
-			s := t.span()
-			start, end := s.physPageBounds()
-			if start >= end {
-				// This span doesn't cover at least one physical page, so skip it.
-				t = t.prev()
-				continue
-			}
-			n := t.prev()
-			if span := h.scavengeSplit(t, nbytes-released); span != nil {
-				s = span
-			} else {
-				h.free.erase(t)
-			}
-			released += s.scavenge()
-			// Now that s is scavenged, we must eagerly coalesce it
-			// with its neighbors to prevent having two spans with
-			// the same scavenged state adjacent to each other.
-			h.coalesce(s)
-			t = n
-			h.free.insert(s)
-		}
-	}
-	return released
-}
-
-// scavengeIfNeededLocked calls scavengeLocked if we're currently above the
-// scavenge goal in order to prevent the mutator from out-running the
-// the scavenger.
-//
-// h must be locked.
-func (h *mheap) scavengeIfNeededLocked(size uintptr) {
-	if r := heapRetained(); r+uint64(size) > h.scavengeRetainedGoal {
-		todo := uint64(size)
-		// If we're only going to go a little bit over, just request what
-		// we actually need done.
-		if overage := r + uint64(size) - h.scavengeRetainedGoal; overage < todo {
-			todo = overage
-		}
-		h.scavengeLocked(uintptr(todo))
-	}
+	// Free the span structure. We no longer have a use for it.
+	s.state.set(mSpanDead)
+	h.freeMSpanLocked(s)
 }
 
 // scavengeAll visits each node in the free treap and scavenges the
@@ -1477,12 +1419,14 @@
 // unscav and adds it into scav before continuing.
 func (h *mheap) scavengeAll() {
 	// Disallow malloc or panic while holding the heap lock. We do
-	// this here because this is an non-mallocgc entry-point to
+	// this here because this is a non-mallocgc entry-point to
 	// the mheap API.
 	gp := getg()
 	gp.m.mallocing++
 	lock(&h.lock)
-	released := h.scavengeLocked(^uintptr(0))
+	// Reset the scavenger address so we have access to the whole heap.
+	h.pages.resetScavengeAddr()
+	released := h.pages.scavenge(^uintptr(0), true)
 	unlock(&h.lock)
 	gp.m.mallocing--
 
@@ -1511,14 +1455,13 @@
 	span.allocCount = 0
 	span.spanclass = 0
 	span.elemsize = 0
-	span.state = mSpanDead
-	span.scavenged = false
 	span.speciallock.key = 0
 	span.specials = nil
 	span.needzero = 0
 	span.freeindex = 0
 	span.allocBits = nil
 	span.gcmarkBits = nil
+	span.state.set(mSpanDead)
 }
 
 func (span *mspan) inList() bool {
diff --git a/libgo/go/runtime/mkpreempt.go b/libgo/go/runtime/mkpreempt.go
new file mode 100644
index 0000000..615ec18
--- /dev/null
+++ b/libgo/go/runtime/mkpreempt.go
@@ -0,0 +1,522 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+// mkpreempt generates the asyncPreempt functions for each
+// architecture.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"strings"
+)
+
+// Copied from cmd/compile/internal/ssa/gen/*Ops.go
+
+var regNames386 = []string{
+	"AX",
+	"CX",
+	"DX",
+	"BX",
+	"SP",
+	"BP",
+	"SI",
+	"DI",
+	"X0",
+	"X1",
+	"X2",
+	"X3",
+	"X4",
+	"X5",
+	"X6",
+	"X7",
+}
+
+var regNamesAMD64 = []string{
+	"AX",
+	"CX",
+	"DX",
+	"BX",
+	"SP",
+	"BP",
+	"SI",
+	"DI",
+	"R8",
+	"R9",
+	"R10",
+	"R11",
+	"R12",
+	"R13",
+	"R14",
+	"R15",
+	"X0",
+	"X1",
+	"X2",
+	"X3",
+	"X4",
+	"X5",
+	"X6",
+	"X7",
+	"X8",
+	"X9",
+	"X10",
+	"X11",
+	"X12",
+	"X13",
+	"X14",
+	"X15",
+}
+
+var out io.Writer
+
+var arches = map[string]func(){
+	"386":     gen386,
+	"amd64":   genAMD64,
+	"arm":     genARM,
+	"arm64":   genARM64,
+	"mips64x": func() { genMIPS(true) },
+	"mipsx":   func() { genMIPS(false) },
+	"ppc64x":  genPPC64,
+	"s390x":   genS390X,
+	"wasm":    genWasm,
+}
+var beLe = map[string]bool{"mips64x": true, "mipsx": true, "ppc64x": true}
+
+func main() {
+	flag.Parse()
+	if flag.NArg() > 0 {
+		out = os.Stdout
+		for _, arch := range flag.Args() {
+			gen, ok := arches[arch]
+			if !ok {
+				log.Fatalf("unknown arch %s", arch)
+			}
+			header(arch)
+			gen()
+		}
+		return
+	}
+
+	for arch, gen := range arches {
+		f, err := os.Create(fmt.Sprintf("preempt_%s.s", arch))
+		if err != nil {
+			log.Fatal(err)
+		}
+		out = f
+		header(arch)
+		gen()
+		if err := f.Close(); err != nil {
+			log.Fatal(err)
+		}
+	}
+}
+
+func header(arch string) {
+	fmt.Fprintf(out, "// Code generated by mkpreempt.go; DO NOT EDIT.\n\n")
+	if beLe[arch] {
+		base := arch[:len(arch)-1]
+		fmt.Fprintf(out, "// +build %s %sle\n\n", base, base)
+	}
+	fmt.Fprintf(out, "#include \"go_asm.h\"\n")
+	fmt.Fprintf(out, "#include \"textflag.h\"\n\n")
+	fmt.Fprintf(out, "TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0\n")
+}
+
+func p(f string, args ...interface{}) {
+	fmted := fmt.Sprintf(f, args...)
+	fmt.Fprintf(out, "\t%s\n", strings.Replace(fmted, "\n", "\n\t", -1))
+}
+
+func label(l string) {
+	fmt.Fprintf(out, "%s\n", l)
+}
+
+type layout struct {
+	stack int
+	regs  []regPos
+	sp    string // stack pointer register
+}
+
+type regPos struct {
+	pos int
+
+	op  string
+	reg string
+
+	// If this register requires special save and restore, these
+	// give those operations with a %d placeholder for the stack
+	// offset.
+	save, restore string
+}
+
+func (l *layout) add(op, reg string, size int) {
+	l.regs = append(l.regs, regPos{op: op, reg: reg, pos: l.stack})
+	l.stack += size
+}
+
+func (l *layout) addSpecial(save, restore string, size int) {
+	l.regs = append(l.regs, regPos{save: save, restore: restore, pos: l.stack})
+	l.stack += size
+}
+
+func (l *layout) save() {
+	for _, reg := range l.regs {
+		if reg.save != "" {
+			p(reg.save, reg.pos)
+		} else {
+			p("%s %s, %d(%s)", reg.op, reg.reg, reg.pos, l.sp)
+		}
+	}
+}
+
+func (l *layout) restore() {
+	for i := len(l.regs) - 1; i >= 0; i-- {
+		reg := l.regs[i]
+		if reg.restore != "" {
+			p(reg.restore, reg.pos)
+		} else {
+			p("%s %d(%s), %s", reg.op, reg.pos, l.sp, reg.reg)
+		}
+	}
+}
+
+func gen386() {
+	p("PUSHFL")
+
+	// Save general purpose registers.
+	var l = layout{sp: "SP"}
+	for _, reg := range regNames386 {
+		if reg == "SP" || strings.HasPrefix(reg, "X") {
+			continue
+		}
+		l.add("MOVL", reg, 4)
+	}
+
+	// Save the 387 state.
+	l.addSpecial(
+		"FSAVE %d(SP)\nFLDCW runtime·controlWord64(SB)",
+		"FRSTOR %d(SP)",
+		108)
+
+	// Save SSE state only if supported.
+	lSSE := layout{stack: l.stack, sp: "SP"}
+	for i := 0; i < 8; i++ {
+		lSSE.add("MOVUPS", fmt.Sprintf("X%d", i), 16)
+	}
+
+	p("ADJSP $%d", lSSE.stack)
+	p("NOP SP")
+	l.save()
+	p("CMPB internal∕cpu·X86+const_offsetX86HasSSE2(SB), $1\nJNE nosse")
+	lSSE.save()
+	label("nosse:")
+	p("CALL ·asyncPreempt2(SB)")
+	p("CMPB internal∕cpu·X86+const_offsetX86HasSSE2(SB), $1\nJNE nosse2")
+	lSSE.restore()
+	label("nosse2:")
+	l.restore()
+	p("ADJSP $%d", -lSSE.stack)
+
+	p("POPFL")
+	p("RET")
+}
+
+func genAMD64() {
+	// Assign stack offsets.
+	var l = layout{sp: "SP"}
+	for _, reg := range regNamesAMD64 {
+		if reg == "SP" || reg == "BP" {
+			continue
+		}
+		if strings.HasPrefix(reg, "X") {
+			l.add("MOVUPS", reg, 16)
+		} else {
+			l.add("MOVQ", reg, 8)
+		}
+	}
+
+	// TODO: MXCSR register?
+
+	p("PUSHQ BP")
+	p("MOVQ SP, BP")
+	p("// Save flags before clobbering them")
+	p("PUSHFQ")
+	p("// obj doesn't understand ADD/SUB on SP, but does understand ADJSP")
+	p("ADJSP $%d", l.stack)
+	p("// But vet doesn't know ADJSP, so suppress vet stack checking")
+	p("NOP SP")
+	l.save()
+	p("CALL ·asyncPreempt2(SB)")
+	l.restore()
+	p("ADJSP $%d", -l.stack)
+	p("POPFQ")
+	p("POPQ BP")
+	p("RET")
+}
+
+func genARM() {
+	// Add integer registers R0-R12.
+	// R13 (SP), R14 (LR), R15 (PC) are special and not saved here.
+	var l = layout{sp: "R13", stack: 4} // add LR slot
+	for i := 0; i <= 12; i++ {
+		reg := fmt.Sprintf("R%d", i)
+		if i == 10 {
+			continue // R10 is g register, no need to save/restore
+		}
+		l.add("MOVW", reg, 4)
+	}
+	// Add flag register.
+	l.addSpecial(
+		"MOVW CPSR, R0\nMOVW R0, %d(R13)",
+		"MOVW %d(R13), R0\nMOVW R0, CPSR",
+		4)
+
+	// Add floating point registers F0-F15 and flag register.
+	var lfp = layout{stack: l.stack, sp: "R13"}
+	lfp.addSpecial(
+		"MOVW FPCR, R0\nMOVW R0, %d(R13)",
+		"MOVW %d(R13), R0\nMOVW R0, FPCR",
+		4)
+	for i := 0; i <= 15; i++ {
+		reg := fmt.Sprintf("F%d", i)
+		lfp.add("MOVD", reg, 8)
+	}
+
+	p("MOVW.W R14, -%d(R13)", lfp.stack) // allocate frame, save LR
+	l.save()
+	p("MOVB ·goarm(SB), R0\nCMP $6, R0\nBLT nofp") // test goarm, and skip FP registers if goarm=5.
+	lfp.save()
+	label("nofp:")
+	p("CALL ·asyncPreempt2(SB)")
+	p("MOVB ·goarm(SB), R0\nCMP $6, R0\nBLT nofp2") // test goarm, and skip FP registers if goarm=5.
+	lfp.restore()
+	label("nofp2:")
+	l.restore()
+
+	p("MOVW %d(R13), R14", lfp.stack)     // sigctxt.pushCall pushes LR on stack, restore it
+	p("MOVW.P %d(R13), R15", lfp.stack+4) // load PC, pop frame (including the space pushed by sigctxt.pushCall)
+	p("UNDEF")                            // shouldn't get here
+}
+
+func genARM64() {
+	// Add integer registers R0-R26
+	// R27 (REGTMP), R28 (g), R29 (FP), R30 (LR), R31 (SP) are special
+	// and not saved here.
+	var l = layout{sp: "RSP", stack: 8} // add slot to save PC of interrupted instruction
+	for i := 0; i <= 26; i++ {
+		if i == 18 {
+			continue // R18 is not used, skip
+		}
+		reg := fmt.Sprintf("R%d", i)
+		l.add("MOVD", reg, 8)
+	}
+	// Add flag registers.
+	l.addSpecial(
+		"MOVD NZCV, R0\nMOVD R0, %d(RSP)",
+		"MOVD %d(RSP), R0\nMOVD R0, NZCV",
+		8)
+	l.addSpecial(
+		"MOVD FPSR, R0\nMOVD R0, %d(RSP)",
+		"MOVD %d(RSP), R0\nMOVD R0, FPSR",
+		8)
+	// TODO: FPCR? I don't think we'll change it, so no need to save.
+	// Add floating point registers F0-F31.
+	for i := 0; i <= 31; i++ {
+		reg := fmt.Sprintf("F%d", i)
+		l.add("FMOVD", reg, 8)
+	}
+	if l.stack%16 != 0 {
+		l.stack += 8 // SP needs 16-byte alignment
+	}
+
+	// allocate frame, save PC of interrupted instruction (in LR)
+	p("MOVD R30, %d(RSP)", -l.stack)
+	p("SUB $%d, RSP", l.stack)
+	p("#ifdef GOOS_linux")
+	p("MOVD R29, -8(RSP)") // save frame pointer (only used on Linux)
+	p("SUB $8, RSP, R29")  // set up new frame pointer
+	p("#endif")
+	// On darwin, save the LR again after decrementing SP. We run the
+	// signal handler on the G stack (as it doesn't support SA_ONSTACK),
+	// so any writes below SP may be clobbered.
+	p("#ifdef GOOS_darwin")
+	p("MOVD R30, (RSP)")
+	p("#endif")
+
+	l.save()
+	p("CALL ·asyncPreempt2(SB)")
+	l.restore()
+
+	p("MOVD %d(RSP), R30", l.stack) // sigctxt.pushCall has pushed LR (at interrupt) on stack, restore it
+	p("#ifdef GOOS_linux")
+	p("MOVD -8(RSP), R29") // restore frame pointer
+	p("#endif")
+	p("MOVD (RSP), R27")          // load PC to REGTMP
+	p("ADD $%d, RSP", l.stack+16) // pop frame (including the space pushed by sigctxt.pushCall)
+	p("JMP (R27)")
+}
+
+func genMIPS(_64bit bool) {
+	mov := "MOVW"
+	movf := "MOVF"
+	add := "ADD"
+	sub := "SUB"
+	r28 := "R28"
+	regsize := 4
+	if _64bit {
+		mov = "MOVV"
+		movf = "MOVD"
+		add = "ADDV"
+		sub = "SUBV"
+		r28 = "RSB"
+		regsize = 8
+	}
+
+	// Add integer registers R1-R22, R24-R25, R28
+	// R0 (zero), R23 (REGTMP), R29 (SP), R30 (g), R31 (LR) are special,
+	// and not saved here. R26 and R27 are reserved by kernel and not used.
+	var l = layout{sp: "R29", stack: regsize} // add slot to save PC of interrupted instruction (in LR)
+	for i := 1; i <= 25; i++ {
+		if i == 23 {
+			continue // R23 is REGTMP
+		}
+		reg := fmt.Sprintf("R%d", i)
+		l.add(mov, reg, regsize)
+	}
+	l.add(mov, r28, regsize)
+	l.addSpecial(
+		mov+" HI, R1\n"+mov+" R1, %d(R29)",
+		mov+" %d(R29), R1\n"+mov+" R1, HI",
+		regsize)
+	l.addSpecial(
+		mov+" LO, R1\n"+mov+" R1, %d(R29)",
+		mov+" %d(R29), R1\n"+mov+" R1, LO",
+		regsize)
+	// Add floating point control/status register FCR31 (FCR0-FCR30 are irrelevant)
+	l.addSpecial(
+		mov+" FCR31, R1\n"+mov+" R1, %d(R29)",
+		mov+" %d(R29), R1\n"+mov+" R1, FCR31",
+		regsize)
+	// Add floating point registers F0-F31.
+	for i := 0; i <= 31; i++ {
+		reg := fmt.Sprintf("F%d", i)
+		l.add(movf, reg, regsize)
+	}
+
+	// allocate frame, save PC of interrupted instruction (in LR)
+	p(mov+" R31, -%d(R29)", l.stack)
+	p(sub+" $%d, R29", l.stack)
+
+	l.save()
+	p("CALL ·asyncPreempt2(SB)")
+	l.restore()
+
+	p(mov+" %d(R29), R31", l.stack)     // sigctxt.pushCall has pushed LR (at interrupt) on stack, restore it
+	p(mov + " (R29), R23")              // load PC to REGTMP
+	p(add+" $%d, R29", l.stack+regsize) // pop frame (including the space pushed by sigctxt.pushCall)
+	p("JMP (R23)")
+}
+
+func genPPC64() {
+	// Add integer registers R3-R29
+	// R0 (zero), R1 (SP), R30 (g) are special and not saved here.
+	// R2 (TOC pointer in PIC mode), R12 (function entry address in PIC mode) have been saved in sigctxt.pushCall.
+	// R31 (REGTMP) will be saved manually.
+	var l = layout{sp: "R1", stack: 32 + 8} // MinFrameSize on PPC64, plus one word for saving R31
+	for i := 3; i <= 29; i++ {
+		if i == 12 || i == 13 {
+			// R12 has been saved in sigctxt.pushCall.
+			// R13 is TLS pointer, not used by Go code. we must NOT
+			// restore it, otherwise if we parked and resumed on a
+			// different thread we'll mess up TLS addresses.
+			continue
+		}
+		reg := fmt.Sprintf("R%d", i)
+		l.add("MOVD", reg, 8)
+	}
+	l.addSpecial(
+		"MOVW CR, R31\nMOVW R31, %d(R1)",
+		"MOVW %d(R1), R31\nMOVFL R31, $0xff", // this is MOVW R31, CR
+		8)                                    // CR is 4-byte wide, but just keep the alignment
+	l.addSpecial(
+		"MOVD XER, R31\nMOVD R31, %d(R1)",
+		"MOVD %d(R1), R31\nMOVD R31, XER",
+		8)
+	// Add floating point registers F0-F31.
+	for i := 0; i <= 31; i++ {
+		reg := fmt.Sprintf("F%d", i)
+		l.add("FMOVD", reg, 8)
+	}
+	// Add floating point control/status register FPSCR.
+	l.addSpecial(
+		"MOVFL FPSCR, F0\nFMOVD F0, %d(R1)",
+		"FMOVD %d(R1), F0\nMOVFL F0, FPSCR",
+		8)
+
+	p("MOVD R31, -%d(R1)", l.stack-32) // save R31 first, we'll use R31 for saving LR
+	p("MOVD LR, R31")
+	p("MOVDU R31, -%d(R1)", l.stack) // allocate frame, save PC of interrupted instruction (in LR)
+
+	l.save()
+	p("CALL ·asyncPreempt2(SB)")
+	l.restore()
+
+	p("MOVD %d(R1), R31", l.stack) // sigctxt.pushCall has pushed LR, R2, R12 (at interrupt) on stack, restore them
+	p("MOVD R31, LR")
+	p("MOVD %d(R1), R2", l.stack+8)
+	p("MOVD %d(R1), R12", l.stack+16)
+	p("MOVD (R1), R31") // load PC to CTR
+	p("MOVD R31, CTR")
+	p("MOVD 32(R1), R31")        // restore R31
+	p("ADD $%d, R1", l.stack+32) // pop frame (including the space pushed by sigctxt.pushCall)
+	p("JMP (CTR)")
+}
+
+func genS390X() {
+	// Add integer registers R0-R12
+	// R13 (g), R14 (LR), R15 (SP) are special, and not saved here.
+	// Saving R10 (REGTMP) is not necessary, but it is saved anyway.
+	var l = layout{sp: "R15", stack: 16} // add slot to save PC of interrupted instruction and flags
+	l.addSpecial(
+		"STMG R0, R12, %d(R15)",
+		"LMG %d(R15), R0, R12",
+		13*8)
+	// Add floating point registers F0-F31.
+	for i := 0; i <= 15; i++ {
+		reg := fmt.Sprintf("F%d", i)
+		l.add("FMOVD", reg, 8)
+	}
+
+	// allocate frame, save PC of interrupted instruction (in LR) and flags (condition code)
+	p("IPM R10") // save flags upfront, as ADD will clobber flags
+	p("MOVD R14, -%d(R15)", l.stack)
+	p("ADD $-%d, R15", l.stack)
+	p("MOVW R10, 8(R15)") // save flags
+
+	l.save()
+	p("CALL ·asyncPreempt2(SB)")
+	l.restore()
+
+	p("MOVD %d(R15), R14", l.stack)    // sigctxt.pushCall has pushed LR (at interrupt) on stack, restore it
+	p("ADD $%d, R15", l.stack+8)       // pop frame (including the space pushed by sigctxt.pushCall)
+	p("MOVWZ -%d(R15), R10", l.stack)  // load flags to REGTMP
+	p("TMLH R10, $(3<<12)")            // restore flags
+	p("MOVD -%d(R15), R10", l.stack+8) // load PC to REGTMP
+	p("JMP (R10)")
+}
+
+func genWasm() {
+	p("// No async preemption on wasm")
+	p("UNDEF")
+}
+
+func notImplemented() {
+	p("// Not implemented yet")
+	p("JMP ·abort(SB)")
+}
diff --git a/libgo/go/runtime/mpagealloc.go b/libgo/go/runtime/mpagealloc.go
new file mode 100644
index 0000000..572e6a9
--- /dev/null
+++ b/libgo/go/runtime/mpagealloc.go
@@ -0,0 +1,938 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Page allocator.
+//
+// The page allocator manages mapped pages (defined by pageSize, NOT
+// physPageSize) for allocation and re-use. It is embedded into mheap.
+//
+// Pages are managed using a bitmap that is sharded into chunks.
+// In the bitmap, 1 means in-use, and 0 means free. The bitmap spans the
+// process's address space. Chunks are managed in a sparse-array-style structure
+// similar to mheap.arenas, since the bitmap may be large on some systems.
+//
+// The bitmap is efficiently searched by using a radix tree in combination
+// with fast bit-wise intrinsics. Allocation is performed using an address-ordered
+// first-fit approach.
+//
+// Each entry in the radix tree is a summary that describes three properties of
+// a particular region of the address space: the number of contiguous free pages
+// at the start and end of the region it represents, and the maximum number of
+// contiguous free pages found anywhere in that region.
+//
+// Each level of the radix tree is stored as one contiguous array, which represents
+// a different granularity of subdivision of the processes' address space. Thus, this
+// radix tree is actually implicit in these large arrays, as opposed to having explicit
+// dynamically-allocated pointer-based node structures. Naturally, these arrays may be
+// quite large for system with large address spaces, so in these cases they are mapped
+// into memory as needed. The leaf summaries of the tree correspond to a bitmap chunk.
+//
+// The root level (referred to as L0 and index 0 in pageAlloc.summary) has each
+// summary represent the largest section of address space (16 GiB on 64-bit systems),
+// with each subsequent level representing successively smaller subsections until we
+// reach the finest granularity at the leaves, a chunk.
+//
+// More specifically, each summary in each level (except for leaf summaries)
+// represents some number of entries in the following level. For example, each
+// summary in the root level may represent a 16 GiB region of address space,
+// and in the next level there could be 8 corresponding entries which represent 2
+// GiB subsections of that 16 GiB region, each of which could correspond to 8
+// entries in the next level which each represent 256 MiB regions, and so on.
+//
+// Thus, this design only scales to heaps so large, but can always be extended to
+// larger heaps by simply adding levels to the radix tree, which mostly costs
+// additional virtual address space. The choice of managing large arrays also means
+// that a large amount of virtual address space may be reserved by the runtime.
+
+package runtime
+
+import (
+	"runtime/internal/atomic"
+	"unsafe"
+)
+
+const (
+	// The size of a bitmap chunk, i.e. the amount of bits (that is, pages) to consider
+	// in the bitmap at once.
+	pallocChunkPages    = 1 << logPallocChunkPages
+	pallocChunkBytes    = pallocChunkPages * pageSize
+	logPallocChunkPages = 9
+	logPallocChunkBytes = logPallocChunkPages + pageShift
+
+	// The number of radix bits for each level.
+	//
+	// The value of 3 is chosen such that the block of summaries we need to scan at
+	// each level fits in 64 bytes (2^3 summaries * 8 bytes per summary), which is
+	// close to the L1 cache line width on many systems. Also, a value of 3 fits 4 tree
+	// levels perfectly into the 21-bit pallocBits summary field at the root level.
+	//
+	// The following equation explains how each of the constants relate:
+	// summaryL0Bits + (summaryLevels-1)*summaryLevelBits + logPallocChunkBytes = heapAddrBits
+	//
+	// summaryLevels is an architecture-dependent value defined in mpagealloc_*.go.
+	summaryLevelBits = 3
+	summaryL0Bits    = heapAddrBits - logPallocChunkBytes - (summaryLevels-1)*summaryLevelBits
+
+	// pallocChunksL2Bits is the number of bits of the chunk index number
+	// covered by the second level of the chunks map.
+	//
+	// See (*pageAlloc).chunks for more details. Update the documentation
+	// there should this change.
+	pallocChunksL2Bits  = heapAddrBits - logPallocChunkBytes - pallocChunksL1Bits
+	pallocChunksL1Shift = pallocChunksL2Bits
+
+	// Maximum searchAddr value, which indicates that the heap has no free space.
+	//
+	// We subtract arenaBaseOffset because we want this to represent the maximum
+	// value in the shifted address space, but searchAddr is stored as a regular
+	// memory address. See arenaBaseOffset for details.
+	maxSearchAddr = ^uintptr(0) - arenaBaseOffset
+
+	// Minimum scavAddr value, which indicates that the scavenger is done.
+	//
+	// minScavAddr + arenaBaseOffset == 0
+	minScavAddr = (^arenaBaseOffset + 1) & uintptrMask
+)
+
+// Global chunk index.
+//
+// Represents an index into the leaf level of the radix tree.
+// Similar to arenaIndex, except instead of arenas, it divides the address
+// space into chunks.
+type chunkIdx uint
+
+// chunkIndex returns the global index of the palloc chunk containing the
+// pointer p.
+func chunkIndex(p uintptr) chunkIdx {
+	return chunkIdx((p + arenaBaseOffset) / pallocChunkBytes)
+}
+
+// chunkIndex returns the base address of the palloc chunk at index ci.
+func chunkBase(ci chunkIdx) uintptr {
+	return uintptr(ci)*pallocChunkBytes - arenaBaseOffset
+}
+
+// chunkPageIndex computes the index of the page that contains p,
+// relative to the chunk which contains p.
+func chunkPageIndex(p uintptr) uint {
+	return uint(p % pallocChunkBytes / pageSize)
+}
+
+// l1 returns the index into the first level of (*pageAlloc).chunks.
+func (i chunkIdx) l1() uint {
+	if pallocChunksL1Bits == 0 {
+		// Let the compiler optimize this away if there's no
+		// L1 map.
+		return 0
+	} else {
+		return uint(i) >> pallocChunksL1Shift
+	}
+}
+
+// l2 returns the index into the second level of (*pageAlloc).chunks.
+func (i chunkIdx) l2() uint {
+	if pallocChunksL1Bits == 0 {
+		return uint(i)
+	} else {
+		return uint(i) & (1<<pallocChunksL2Bits - 1)
+	}
+}
+
+// addrsToSummaryRange converts base and limit pointers into a range
+// of entries for the given summary level.
+//
+// The returned range is inclusive on the lower bound and exclusive on
+// the upper bound.
+func addrsToSummaryRange(level int, base, limit uintptr) (lo int, hi int) {
+	// This is slightly more nuanced than just a shift for the exclusive
+	// upper-bound. Note that the exclusive upper bound may be within a
+	// summary at this level, meaning if we just do the obvious computation
+	// hi will end up being an inclusive upper bound. Unfortunately, just
+	// adding 1 to that is too broad since we might be on the very edge of
+	// of a summary's max page count boundary for this level
+	// (1 << levelLogPages[level]). So, make limit an inclusive upper bound
+	// then shift, then add 1, so we get an exclusive upper bound at the end.
+	lo = int((base + arenaBaseOffset) >> levelShift[level])
+	hi = int(((limit-1)+arenaBaseOffset)>>levelShift[level]) + 1
+	return
+}
+
+// blockAlignSummaryRange aligns indices into the given level to that
+// level's block width (1 << levelBits[level]). It assumes lo is inclusive
+// and hi is exclusive, and so aligns them down and up respectively.
+func blockAlignSummaryRange(level int, lo, hi int) (int, int) {
+	e := uintptr(1) << levelBits[level]
+	return int(alignDown(uintptr(lo), e)), int(alignUp(uintptr(hi), e))
+}
+
+type pageAlloc struct {
+	// Radix tree of summaries.
+	//
+	// Each slice's cap represents the whole memory reservation.
+	// Each slice's len reflects the allocator's maximum known
+	// mapped heap address for that level.
+	//
+	// The backing store of each summary level is reserved in init
+	// and may or may not be committed in grow (small address spaces
+	// may commit all the memory in init).
+	//
+	// The purpose of keeping len <= cap is to enforce bounds checks
+	// on the top end of the slice so that instead of an unknown
+	// runtime segmentation fault, we get a much friendlier out-of-bounds
+	// error.
+	//
+	// To iterate over a summary level, use inUse to determine which ranges
+	// are currently available. Otherwise one might try to access
+	// memory which is only Reserved which may result in a hard fault.
+	//
+	// We may still get segmentation faults < len since some of that
+	// memory may not be committed yet.
+	summary [summaryLevels][]pallocSum
+
+	// chunks is a slice of bitmap chunks.
+	//
+	// The total size of chunks is quite large on most 64-bit platforms
+	// (O(GiB) or more) if flattened, so rather than making one large mapping
+	// (which has problems on some platforms, even when PROT_NONE) we use a
+	// two-level sparse array approach similar to the arena index in mheap.
+	//
+	// To find the chunk containing a memory address `a`, do:
+	//   chunkOf(chunkIndex(a))
+	//
+	// Below is a table describing the configuration for chunks for various
+	// heapAddrBits supported by the runtime.
+	//
+	// heapAddrBits | L1 Bits | L2 Bits | L2 Entry Size
+	// ------------------------------------------------
+	// 32           | 0       | 10      | 128 KiB
+	// 33 (iOS)     | 0       | 11      | 256 KiB
+	// 48           | 13      | 13      | 1 MiB
+	//
+	// There's no reason to use the L1 part of chunks on 32-bit, the
+	// address space is small so the L2 is small. For platforms with a
+	// 48-bit address space, we pick the L1 such that the L2 is 1 MiB
+	// in size, which is a good balance between low granularity without
+	// making the impact on BSS too high (note the L1 is stored directly
+	// in pageAlloc).
+	//
+	// To iterate over the bitmap, use inUse to determine which ranges
+	// are currently available. Otherwise one might iterate over unused
+	// ranges.
+	//
+	// TODO(mknyszek): Consider changing the definition of the bitmap
+	// such that 1 means free and 0 means in-use so that summaries and
+	// the bitmaps align better on zero-values.
+	chunks [1 << pallocChunksL1Bits]*[1 << pallocChunksL2Bits]pallocData
+
+	// The address to start an allocation search with.
+	//
+	// When added with arenaBaseOffset, we guarantee that
+	// all valid heap addresses (when also added with
+	// arenaBaseOffset) below this value are allocated and
+	// not worth searching.
+	//
+	// Note that adding in arenaBaseOffset transforms addresses
+	// to a new address space with a linear view of the full address
+	// space on architectures with segmented address spaces.
+	searchAddr uintptr
+
+	// The address to start a scavenge candidate search with.
+	scavAddr uintptr
+
+	// start and end represent the chunk indices
+	// which pageAlloc knows about. It assumes
+	// chunks in the range [start, end) are
+	// currently ready to use.
+	start, end chunkIdx
+
+	// inUse is a slice of ranges of address space which are
+	// known by the page allocator to be currently in-use (passed
+	// to grow).
+	//
+	// This field is currently unused on 32-bit architectures but
+	// is harmless to track. We care much more about having a
+	// contiguous heap in these cases and take additional measures
+	// to ensure that, so in nearly all cases this should have just
+	// 1 element.
+	//
+	// All access is protected by the mheapLock.
+	inUse addrRanges
+
+	// mheap_.lock. This level of indirection makes it possible
+	// to test pageAlloc indepedently of the runtime allocator.
+	mheapLock *mutex
+
+	// sysStat is the runtime memstat to update when new system
+	// memory is committed by the pageAlloc for allocation metadata.
+	sysStat *uint64
+
+	// Whether or not this struct is being used in tests.
+	test bool
+}
+
+func (s *pageAlloc) init(mheapLock *mutex, sysStat *uint64) {
+	if levelLogPages[0] > logMaxPackedValue {
+		// We can't represent 1<<levelLogPages[0] pages, the maximum number
+		// of pages we need to represent at the root level, in a summary, which
+		// is a big problem. Throw.
+		print("runtime: root level max pages = ", 1<<levelLogPages[0], "\n")
+		print("runtime: summary max pages = ", maxPackedValue, "\n")
+		throw("root level max pages doesn't fit in summary")
+	}
+	s.sysStat = sysStat
+
+	// Initialize s.inUse.
+	s.inUse.init(sysStat)
+
+	// System-dependent initialization.
+	s.sysInit()
+
+	// Start with the searchAddr in a state indicating there's no free memory.
+	s.searchAddr = maxSearchAddr
+
+	// Start with the scavAddr in a state indicating there's nothing more to do.
+	s.scavAddr = minScavAddr
+
+	// Set the mheapLock.
+	s.mheapLock = mheapLock
+}
+
+// compareSearchAddrTo compares an address against s.searchAddr in a linearized
+// view of the address space on systems with discontinuous process address spaces.
+// This linearized view is the same one generated by chunkIndex and arenaIndex,
+// done by adding arenaBaseOffset.
+//
+// On systems without a discontinuous address space, it's just a normal comparison.
+//
+// Returns < 0 if addr is less than s.searchAddr in the linearized address space.
+// Returns > 0 if addr is greater than s.searchAddr in the linearized address space.
+// Returns 0 if addr and s.searchAddr are equal.
+func (s *pageAlloc) compareSearchAddrTo(addr uintptr) int {
+	// Compare with arenaBaseOffset added because it gives us a linear, contiguous view
+	// of the heap on architectures with signed address spaces.
+	lAddr := addr + arenaBaseOffset
+	lSearchAddr := s.searchAddr + arenaBaseOffset
+	if lAddr < lSearchAddr {
+		return -1
+	} else if lAddr > lSearchAddr {
+		return 1
+	}
+	return 0
+}
+
+// chunkOf returns the chunk at the given chunk index.
+func (s *pageAlloc) chunkOf(ci chunkIdx) *pallocData {
+	return &s.chunks[ci.l1()][ci.l2()]
+}
+
+// grow sets up the metadata for the address range [base, base+size).
+// It may allocate metadata, in which case *s.sysStat will be updated.
+//
+// s.mheapLock must be held.
+func (s *pageAlloc) grow(base, size uintptr) {
+	// Round up to chunks, since we can't deal with increments smaller
+	// than chunks. Also, sysGrow expects aligned values.
+	limit := alignUp(base+size, pallocChunkBytes)
+	base = alignDown(base, pallocChunkBytes)
+
+	// Grow the summary levels in a system-dependent manner.
+	// We just update a bunch of additional metadata here.
+	s.sysGrow(base, limit)
+
+	// Update s.start and s.end.
+	// If no growth happened yet, start == 0. This is generally
+	// safe since the zero page is unmapped.
+	firstGrowth := s.start == 0
+	start, end := chunkIndex(base), chunkIndex(limit)
+	if firstGrowth || start < s.start {
+		s.start = start
+	}
+	if end > s.end {
+		s.end = end
+	}
+	// Note that [base, limit) will never overlap with any existing
+	// range inUse because grow only ever adds never-used memory
+	// regions to the page allocator.
+	s.inUse.add(addrRange{base, limit})
+
+	// A grow operation is a lot like a free operation, so if our
+	// chunk ends up below the (linearized) s.searchAddr, update
+	// s.searchAddr to the new address, just like in free.
+	if s.compareSearchAddrTo(base) < 0 {
+		s.searchAddr = base
+	}
+
+	// Add entries into chunks, which is sparse, if needed. Then,
+	// initialize the bitmap.
+	//
+	// Newly-grown memory is always considered scavenged.
+	// Set all the bits in the scavenged bitmaps high.
+	for c := chunkIndex(base); c < chunkIndex(limit); c++ {
+		if s.chunks[c.l1()] == nil {
+			// Create the necessary l2 entry.
+			//
+			// Store it atomically to avoid races with readers which
+			// don't acquire the heap lock.
+			r := sysAlloc(unsafe.Sizeof(*s.chunks[0]), s.sysStat)
+			atomic.StorepNoWB(unsafe.Pointer(&s.chunks[c.l1()]), r)
+		}
+		s.chunkOf(c).scavenged.setRange(0, pallocChunkPages)
+	}
+
+	// Update summaries accordingly. The grow acts like a free, so
+	// we need to ensure this newly-free memory is visible in the
+	// summaries.
+	s.update(base, size/pageSize, true, false)
+}
+
+// update updates heap metadata. It must be called each time the bitmap
+// is updated.
+//
+// If contig is true, update does some optimizations assuming that there was
+// a contiguous allocation or free between addr and addr+npages. alloc indicates
+// whether the operation performed was an allocation or a free.
+//
+// s.mheapLock must be held.
+func (s *pageAlloc) update(base, npages uintptr, contig, alloc bool) {
+	// base, limit, start, and end are inclusive.
+	limit := base + npages*pageSize - 1
+	sc, ec := chunkIndex(base), chunkIndex(limit)
+
+	// Handle updating the lowest level first.
+	if sc == ec {
+		// Fast path: the allocation doesn't span more than one chunk,
+		// so update this one and if the summary didn't change, return.
+		x := s.summary[len(s.summary)-1][sc]
+		y := s.chunkOf(sc).summarize()
+		if x == y {
+			return
+		}
+		s.summary[len(s.summary)-1][sc] = y
+	} else if contig {
+		// Slow contiguous path: the allocation spans more than one chunk
+		// and at least one summary is guaranteed to change.
+		summary := s.summary[len(s.summary)-1]
+
+		// Update the summary for chunk sc.
+		summary[sc] = s.chunkOf(sc).summarize()
+
+		// Update the summaries for chunks in between, which are
+		// either totally allocated or freed.
+		whole := s.summary[len(s.summary)-1][sc+1 : ec]
+		if alloc {
+			// Should optimize into a memclr.
+			for i := range whole {
+				whole[i] = 0
+			}
+		} else {
+			for i := range whole {
+				whole[i] = freeChunkSum
+			}
+		}
+
+		// Update the summary for chunk ec.
+		summary[ec] = s.chunkOf(ec).summarize()
+	} else {
+		// Slow general path: the allocation spans more than one chunk
+		// and at least one summary is guaranteed to change.
+		//
+		// We can't assume a contiguous allocation happened, so walk over
+		// every chunk in the range and manually recompute the summary.
+		summary := s.summary[len(s.summary)-1]
+		for c := sc; c <= ec; c++ {
+			summary[c] = s.chunkOf(c).summarize()
+		}
+	}
+
+	// Walk up the radix tree and update the summaries appropriately.
+	changed := true
+	for l := len(s.summary) - 2; l >= 0 && changed; l-- {
+		// Update summaries at level l from summaries at level l+1.
+		changed = false
+
+		// "Constants" for the previous level which we
+		// need to compute the summary from that level.
+		logEntriesPerBlock := levelBits[l+1]
+		logMaxPages := levelLogPages[l+1]
+
+		// lo and hi describe all the parts of the level we need to look at.
+		lo, hi := addrsToSummaryRange(l, base, limit+1)
+
+		// Iterate over each block, updating the corresponding summary in the less-granular level.
+		for i := lo; i < hi; i++ {
+			children := s.summary[l+1][i<<logEntriesPerBlock : (i+1)<<logEntriesPerBlock]
+			sum := mergeSummaries(children, logMaxPages)
+			old := s.summary[l][i]
+			if old != sum {
+				changed = true
+				s.summary[l][i] = sum
+			}
+		}
+	}
+}
+
+// allocRange marks the range of memory [base, base+npages*pageSize) as
+// allocated. It also updates the summaries to reflect the newly-updated
+// bitmap.
+//
+// Returns the amount of scavenged memory in bytes present in the
+// allocated range.
+//
+// s.mheapLock must be held.
+func (s *pageAlloc) allocRange(base, npages uintptr) uintptr {
+	limit := base + npages*pageSize - 1
+	sc, ec := chunkIndex(base), chunkIndex(limit)
+	si, ei := chunkPageIndex(base), chunkPageIndex(limit)
+
+	scav := uint(0)
+	if sc == ec {
+		// The range doesn't cross any chunk boundaries.
+		chunk := s.chunkOf(sc)
+		scav += chunk.scavenged.popcntRange(si, ei+1-si)
+		chunk.allocRange(si, ei+1-si)
+	} else {
+		// The range crosses at least one chunk boundary.
+		chunk := s.chunkOf(sc)
+		scav += chunk.scavenged.popcntRange(si, pallocChunkPages-si)
+		chunk.allocRange(si, pallocChunkPages-si)
+		for c := sc + 1; c < ec; c++ {
+			chunk := s.chunkOf(c)
+			scav += chunk.scavenged.popcntRange(0, pallocChunkPages)
+			chunk.allocAll()
+		}
+		chunk = s.chunkOf(ec)
+		scav += chunk.scavenged.popcntRange(0, ei+1)
+		chunk.allocRange(0, ei+1)
+	}
+	s.update(base, npages, true, true)
+	return uintptr(scav) * pageSize
+}
+
+// find searches for the first (address-ordered) contiguous free region of
+// npages in size and returns a base address for that region.
+//
+// It uses s.searchAddr to prune its search and assumes that no palloc chunks
+// below chunkIndex(s.searchAddr) contain any free memory at all.
+//
+// find also computes and returns a candidate s.searchAddr, which may or
+// may not prune more of the address space than s.searchAddr already does.
+//
+// find represents the slow path and the full radix tree search.
+//
+// Returns a base address of 0 on failure, in which case the candidate
+// searchAddr returned is invalid and must be ignored.
+//
+// s.mheapLock must be held.
+func (s *pageAlloc) find(npages uintptr) (uintptr, uintptr) {
+	// Search algorithm.
+	//
+	// This algorithm walks each level l of the radix tree from the root level
+	// to the leaf level. It iterates over at most 1 << levelBits[l] of entries
+	// in a given level in the radix tree, and uses the summary information to
+	// find either:
+	//  1) That a given subtree contains a large enough contiguous region, at
+	//     which point it continues iterating on the next level, or
+	//  2) That there are enough contiguous boundary-crossing bits to satisfy
+	//     the allocation, at which point it knows exactly where to start
+	//     allocating from.
+	//
+	// i tracks the index into the current level l's structure for the
+	// contiguous 1 << levelBits[l] entries we're actually interested in.
+	//
+	// NOTE: Technically this search could allocate a region which crosses
+	// the arenaBaseOffset boundary, which when arenaBaseOffset != 0, is
+	// a discontinuity. However, the only way this could happen is if the
+	// page at the zero address is mapped, and this is impossible on
+	// every system we support where arenaBaseOffset != 0. So, the
+	// discontinuity is already encoded in the fact that the OS will never
+	// map the zero page for us, and this function doesn't try to handle
+	// this case in any way.
+
+	// i is the beginning of the block of entries we're searching at the
+	// current level.
+	i := 0
+
+	// firstFree is the region of address space that we are certain to
+	// find the first free page in the heap. base and bound are the inclusive
+	// bounds of this window, and both are addresses in the linearized, contiguous
+	// view of the address space (with arenaBaseOffset pre-added). At each level,
+	// this window is narrowed as we find the memory region containing the
+	// first free page of memory. To begin with, the range reflects the
+	// full process address space.
+	//
+	// firstFree is updated by calling foundFree each time free space in the
+	// heap is discovered.
+	//
+	// At the end of the search, base-arenaBaseOffset is the best new
+	// searchAddr we could deduce in this search.
+	firstFree := struct {
+		base, bound uintptr
+	}{
+		base:  0,
+		bound: (1<<heapAddrBits - 1),
+	}
+	// foundFree takes the given address range [addr, addr+size) and
+	// updates firstFree if it is a narrower range. The input range must
+	// either be fully contained within firstFree or not overlap with it
+	// at all.
+	//
+	// This way, we'll record the first summary we find with any free
+	// pages on the root level and narrow that down if we descend into
+	// that summary. But as soon as we need to iterate beyond that summary
+	// in a level to find a large enough range, we'll stop narrowing.
+	foundFree := func(addr, size uintptr) {
+		if firstFree.base <= addr && addr+size-1 <= firstFree.bound {
+			// This range fits within the current firstFree window, so narrow
+			// down the firstFree window to the base and bound of this range.
+			firstFree.base = addr
+			firstFree.bound = addr + size - 1
+		} else if !(addr+size-1 < firstFree.base || addr > firstFree.bound) {
+			// This range only partially overlaps with the firstFree range,
+			// so throw.
+			print("runtime: addr = ", hex(addr), ", size = ", size, "\n")
+			print("runtime: base = ", hex(firstFree.base), ", bound = ", hex(firstFree.bound), "\n")
+			throw("range partially overlaps")
+		}
+	}
+
+	// lastSum is the summary which we saw on the previous level that made us
+	// move on to the next level. Used to print additional information in the
+	// case of a catastrophic failure.
+	// lastSumIdx is that summary's index in the previous level.
+	lastSum := packPallocSum(0, 0, 0)
+	lastSumIdx := -1
+
+nextLevel:
+	for l := 0; l < len(s.summary); l++ {
+		// For the root level, entriesPerBlock is the whole level.
+		entriesPerBlock := 1 << levelBits[l]
+		logMaxPages := levelLogPages[l]
+
+		// We've moved into a new level, so let's update i to our new
+		// starting index. This is a no-op for level 0.
+		i <<= levelBits[l]
+
+		// Slice out the block of entries we care about.
+		entries := s.summary[l][i : i+entriesPerBlock]
+
+		// Determine j0, the first index we should start iterating from.
+		// The searchAddr may help us eliminate iterations if we followed the
+		// searchAddr on the previous level or we're on the root leve, in which
+		// case the searchAddr should be the same as i after levelShift.
+		j0 := 0
+		if searchIdx := int((s.searchAddr + arenaBaseOffset) >> levelShift[l]); searchIdx&^(entriesPerBlock-1) == i {
+			j0 = searchIdx & (entriesPerBlock - 1)
+		}
+
+		// Run over the level entries looking for
+		// a contiguous run of at least npages either
+		// within an entry or across entries.
+		//
+		// base contains the page index (relative to
+		// the first entry's first page) of the currently
+		// considered run of consecutive pages.
+		//
+		// size contains the size of the currently considered
+		// run of consecutive pages.
+		var base, size uint
+		for j := j0; j < len(entries); j++ {
+			sum := entries[j]
+			if sum == 0 {
+				// A full entry means we broke any streak and
+				// that we should skip it altogether.
+				size = 0
+				continue
+			}
+
+			// We've encountered a non-zero summary which means
+			// free memory, so update firstFree.
+			foundFree(uintptr((i+j)<<levelShift[l]), (uintptr(1)<<logMaxPages)*pageSize)
+
+			s := sum.start()
+			if size+s >= uint(npages) {
+				// If size == 0 we don't have a run yet,
+				// which means base isn't valid. So, set
+				// base to the first page in this block.
+				if size == 0 {
+					base = uint(j) << logMaxPages
+				}
+				// We hit npages; we're done!
+				size += s
+				break
+			}
+			if sum.max() >= uint(npages) {
+				// The entry itself contains npages contiguous
+				// free pages, so continue on the next level
+				// to find that run.
+				i += j
+				lastSumIdx = i
+				lastSum = sum
+				continue nextLevel
+			}
+			if size == 0 || s < 1<<logMaxPages {
+				// We either don't have a current run started, or this entry
+				// isn't totally free (meaning we can't continue the current
+				// one), so try to begin a new run by setting size and base
+				// based on sum.end.
+				size = sum.end()
+				base = uint(j+1)<<logMaxPages - size
+				continue
+			}
+			// The entry is completely free, so continue the run.
+			size += 1 << logMaxPages
+		}
+		if size >= uint(npages) {
+			// We found a sufficiently large run of free pages straddling
+			// some boundary, so compute the address and return it.
+			addr := uintptr(i<<levelShift[l]) - arenaBaseOffset + uintptr(base)*pageSize
+			return addr, firstFree.base - arenaBaseOffset
+		}
+		if l == 0 {
+			// We're at level zero, so that means we've exhausted our search.
+			return 0, maxSearchAddr
+		}
+
+		// We're not at level zero, and we exhausted the level we were looking in.
+		// This means that either our calculations were wrong or the level above
+		// lied to us. In either case, dump some useful state and throw.
+		print("runtime: summary[", l-1, "][", lastSumIdx, "] = ", lastSum.start(), ", ", lastSum.max(), ", ", lastSum.end(), "\n")
+		print("runtime: level = ", l, ", npages = ", npages, ", j0 = ", j0, "\n")
+		print("runtime: s.searchAddr = ", hex(s.searchAddr), ", i = ", i, "\n")
+		print("runtime: levelShift[level] = ", levelShift[l], ", levelBits[level] = ", levelBits[l], "\n")
+		for j := 0; j < len(entries); j++ {
+			sum := entries[j]
+			print("runtime: summary[", l, "][", i+j, "] = (", sum.start(), ", ", sum.max(), ", ", sum.end(), ")\n")
+		}
+		throw("bad summary data")
+	}
+
+	// Since we've gotten to this point, that means we haven't found a
+	// sufficiently-sized free region straddling some boundary (chunk or larger).
+	// This means the last summary we inspected must have had a large enough "max"
+	// value, so look inside the chunk to find a suitable run.
+	//
+	// After iterating over all levels, i must contain a chunk index which
+	// is what the final level represents.
+	ci := chunkIdx(i)
+	j, searchIdx := s.chunkOf(ci).find(npages, 0)
+	if j < 0 {
+		// We couldn't find any space in this chunk despite the summaries telling
+		// us it should be there. There's likely a bug, so dump some state and throw.
+		sum := s.summary[len(s.summary)-1][i]
+		print("runtime: summary[", len(s.summary)-1, "][", i, "] = (", sum.start(), ", ", sum.max(), ", ", sum.end(), ")\n")
+		print("runtime: npages = ", npages, "\n")
+		throw("bad summary data")
+	}
+
+	// Compute the address at which the free space starts.
+	addr := chunkBase(ci) + uintptr(j)*pageSize
+
+	// Since we actually searched the chunk, we may have
+	// found an even narrower free window.
+	searchAddr := chunkBase(ci) + uintptr(searchIdx)*pageSize
+	foundFree(searchAddr+arenaBaseOffset, chunkBase(ci+1)-searchAddr)
+	return addr, firstFree.base - arenaBaseOffset
+}
+
+// alloc allocates npages worth of memory from the page heap, returning the base
+// address for the allocation and the amount of scavenged memory in bytes
+// contained in the region [base address, base address + npages*pageSize).
+//
+// Returns a 0 base address on failure, in which case other returned values
+// should be ignored.
+//
+// s.mheapLock must be held.
+func (s *pageAlloc) alloc(npages uintptr) (addr uintptr, scav uintptr) {
+	// If the searchAddr refers to a region which has a higher address than
+	// any known chunk, then we know we're out of memory.
+	if chunkIndex(s.searchAddr) >= s.end {
+		return 0, 0
+	}
+
+	// If npages has a chance of fitting in the chunk where the searchAddr is,
+	// search it directly.
+	searchAddr := uintptr(0)
+	if pallocChunkPages-chunkPageIndex(s.searchAddr) >= uint(npages) {
+		// npages is guaranteed to be no greater than pallocChunkPages here.
+		i := chunkIndex(s.searchAddr)
+		if max := s.summary[len(s.summary)-1][i].max(); max >= uint(npages) {
+			j, searchIdx := s.chunkOf(i).find(npages, chunkPageIndex(s.searchAddr))
+			if j < 0 {
+				print("runtime: max = ", max, ", npages = ", npages, "\n")
+				print("runtime: searchIdx = ", chunkPageIndex(s.searchAddr), ", s.searchAddr = ", hex(s.searchAddr), "\n")
+				throw("bad summary data")
+			}
+			addr = chunkBase(i) + uintptr(j)*pageSize
+			searchAddr = chunkBase(i) + uintptr(searchIdx)*pageSize
+			goto Found
+		}
+	}
+	// We failed to use a searchAddr for one reason or another, so try
+	// the slow path.
+	addr, searchAddr = s.find(npages)
+	if addr == 0 {
+		if npages == 1 {
+			// We failed to find a single free page, the smallest unit
+			// of allocation. This means we know the heap is completely
+			// exhausted. Otherwise, the heap still might have free
+			// space in it, just not enough contiguous space to
+			// accommodate npages.
+			s.searchAddr = maxSearchAddr
+		}
+		return 0, 0
+	}
+Found:
+	// Go ahead and actually mark the bits now that we have an address.
+	scav = s.allocRange(addr, npages)
+
+	// If we found a higher (linearized) searchAddr, we know that all the
+	// heap memory before that searchAddr in a linear address space is
+	// allocated, so bump s.searchAddr up to the new one.
+	if s.compareSearchAddrTo(searchAddr) > 0 {
+		s.searchAddr = searchAddr
+	}
+	return addr, scav
+}
+
+// free returns npages worth of memory starting at base back to the page heap.
+//
+// s.mheapLock must be held.
+func (s *pageAlloc) free(base, npages uintptr) {
+	// If we're freeing pages below the (linearized) s.searchAddr, update searchAddr.
+	if s.compareSearchAddrTo(base) < 0 {
+		s.searchAddr = base
+	}
+	if npages == 1 {
+		// Fast path: we're clearing a single bit, and we know exactly
+		// where it is, so mark it directly.
+		i := chunkIndex(base)
+		s.chunkOf(i).free1(chunkPageIndex(base))
+	} else {
+		// Slow path: we're clearing more bits so we may need to iterate.
+		limit := base + npages*pageSize - 1
+		sc, ec := chunkIndex(base), chunkIndex(limit)
+		si, ei := chunkPageIndex(base), chunkPageIndex(limit)
+
+		if sc == ec {
+			// The range doesn't cross any chunk boundaries.
+			s.chunkOf(sc).free(si, ei+1-si)
+		} else {
+			// The range crosses at least one chunk boundary.
+			s.chunkOf(sc).free(si, pallocChunkPages-si)
+			for c := sc + 1; c < ec; c++ {
+				s.chunkOf(c).freeAll()
+			}
+			s.chunkOf(ec).free(0, ei+1)
+		}
+	}
+	s.update(base, npages, true, false)
+}
+
+const (
+	pallocSumBytes = unsafe.Sizeof(pallocSum(0))
+
+	// maxPackedValue is the maximum value that any of the three fields in
+	// the pallocSum may take on.
+	maxPackedValue    = 1 << logMaxPackedValue
+	logMaxPackedValue = logPallocChunkPages + (summaryLevels-1)*summaryLevelBits
+
+	freeChunkSum = pallocSum(uint64(pallocChunkPages) |
+		uint64(pallocChunkPages<<logMaxPackedValue) |
+		uint64(pallocChunkPages<<(2*logMaxPackedValue)))
+)
+
+// pallocSum is a packed summary type which packs three numbers: start, max,
+// and end into a single 8-byte value. Each of these values are a summary of
+// a bitmap and are thus counts, each of which may have a maximum value of
+// 2^21 - 1, or all three may be equal to 2^21. The latter case is represented
+// by just setting the 64th bit.
+type pallocSum uint64
+
+// packPallocSum takes a start, max, and end value and produces a pallocSum.
+func packPallocSum(start, max, end uint) pallocSum {
+	if max == maxPackedValue {
+		return pallocSum(uint64(1 << 63))
+	}
+	return pallocSum((uint64(start) & (maxPackedValue - 1)) |
+		((uint64(max) & (maxPackedValue - 1)) << logMaxPackedValue) |
+		((uint64(end) & (maxPackedValue - 1)) << (2 * logMaxPackedValue)))
+}
+
+// start extracts the start value from a packed sum.
+func (p pallocSum) start() uint {
+	if uint64(p)&uint64(1<<63) != 0 {
+		return maxPackedValue
+	}
+	return uint(uint64(p) & (maxPackedValue - 1))
+}
+
+// max extracts the max value from a packed sum.
+func (p pallocSum) max() uint {
+	if uint64(p)&uint64(1<<63) != 0 {
+		return maxPackedValue
+	}
+	return uint((uint64(p) >> logMaxPackedValue) & (maxPackedValue - 1))
+}
+
+// end extracts the end value from a packed sum.
+func (p pallocSum) end() uint {
+	if uint64(p)&uint64(1<<63) != 0 {
+		return maxPackedValue
+	}
+	return uint((uint64(p) >> (2 * logMaxPackedValue)) & (maxPackedValue - 1))
+}
+
+// unpack unpacks all three values from the summary.
+func (p pallocSum) unpack() (uint, uint, uint) {
+	if uint64(p)&uint64(1<<63) != 0 {
+		return maxPackedValue, maxPackedValue, maxPackedValue
+	}
+	return uint(uint64(p) & (maxPackedValue - 1)),
+		uint((uint64(p) >> logMaxPackedValue) & (maxPackedValue - 1)),
+		uint((uint64(p) >> (2 * logMaxPackedValue)) & (maxPackedValue - 1))
+}
+
+// mergeSummaries merges consecutive summaries which may each represent at
+// most 1 << logMaxPagesPerSum pages each together into one.
+func mergeSummaries(sums []pallocSum, logMaxPagesPerSum uint) pallocSum {
+	// Merge the summaries in sums into one.
+	//
+	// We do this by keeping a running summary representing the merged
+	// summaries of sums[:i] in start, max, and end.
+	start, max, end := sums[0].unpack()
+	for i := 1; i < len(sums); i++ {
+		// Merge in sums[i].
+		si, mi, ei := sums[i].unpack()
+
+		// Merge in sums[i].start only if the running summary is
+		// completely free, otherwise this summary's start
+		// plays no role in the combined sum.
+		if start == uint(i)<<logMaxPagesPerSum {
+			start += si
+		}
+
+		// Recompute the max value of the running sum by looking
+		// across the boundary between the running sum and sums[i]
+		// and at the max sums[i], taking the greatest of those two
+		// and the max of the running sum.
+		if end+si > max {
+			max = end + si
+		}
+		if mi > max {
+			max = mi
+		}
+
+		// Merge in end by checking if this new summary is totally
+		// free. If it is, then we want to extend the running sum's
+		// end by the new summary. If not, then we have some alloc'd
+		// pages in there and we just want to take the end value in
+		// sums[i].
+		if ei == 1<<logMaxPagesPerSum {
+			end += 1 << logMaxPagesPerSum
+		} else {
+			end = ei
+		}
+	}
+	return packPallocSum(start, max, end)
+}
diff --git a/libgo/go/runtime/mpagealloc_32bit.go b/libgo/go/runtime/mpagealloc_32bit.go
new file mode 100644
index 0000000..d18970c
--- /dev/null
+++ b/libgo/go/runtime/mpagealloc_32bit.go
@@ -0,0 +1,116 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build 386 arm mips mipsle wasm darwin,arm64 amd64p32 armbe m68k mips64p32 mips64p32le nios2 ppc s390 sh shbe sparc
+
+// wasm is a treated as a 32-bit architecture for the purposes of the page
+// allocator, even though it has 64-bit pointers. This is because any wasm
+// pointer always has its top 32 bits as zero, so the effective heap address
+// space is only 2^32 bytes in size (see heapAddrBits).
+
+// darwin/arm64 is treated as a 32-bit architecture for the purposes of the
+// page allocator, even though it has 64-bit pointers and a 33-bit address
+// space (see heapAddrBits). The 33 bit address space cannot be rounded up
+// to 64 bits because there are too many summary levels to fit in just 33
+// bits.
+
+package runtime
+
+import "unsafe"
+
+const (
+	// The number of levels in the radix tree.
+	summaryLevels = 4
+
+	// Constants for testing.
+	pageAlloc32Bit = 1
+	pageAlloc64Bit = 0
+
+	// Number of bits needed to represent all indices into the L1 of the
+	// chunks map.
+	//
+	// See (*pageAlloc).chunks for more details. Update the documentation
+	// there should this number change.
+	pallocChunksL1Bits = 0
+)
+
+// See comment in mpagealloc_64bit.go.
+var levelBits = [summaryLevels]uint{
+	summaryL0Bits,
+	summaryLevelBits,
+	summaryLevelBits,
+	summaryLevelBits,
+}
+
+// See comment in mpagealloc_64bit.go.
+var levelShift = [summaryLevels]uint{
+	heapAddrBits - summaryL0Bits,
+	heapAddrBits - summaryL0Bits - 1*summaryLevelBits,
+	heapAddrBits - summaryL0Bits - 2*summaryLevelBits,
+	heapAddrBits - summaryL0Bits - 3*summaryLevelBits,
+}
+
+// See comment in mpagealloc_64bit.go.
+var levelLogPages = [summaryLevels]uint{
+	logPallocChunkPages + 3*summaryLevelBits,
+	logPallocChunkPages + 2*summaryLevelBits,
+	logPallocChunkPages + 1*summaryLevelBits,
+	logPallocChunkPages,
+}
+
+// See mpagealloc_64bit.go for details.
+func (s *pageAlloc) sysInit() {
+	// Calculate how much memory all our entries will take up.
+	//
+	// This should be around 12 KiB or less.
+	totalSize := uintptr(0)
+	for l := 0; l < summaryLevels; l++ {
+		totalSize += (uintptr(1) << (heapAddrBits - levelShift[l])) * pallocSumBytes
+	}
+	totalSize = alignUp(totalSize, physPageSize)
+
+	// Reserve memory for all levels in one go. There shouldn't be much for 32-bit.
+	reservation := sysReserve(nil, totalSize)
+	if reservation == nil {
+		throw("failed to reserve page summary memory")
+	}
+	// There isn't much. Just map it and mark it as used immediately.
+	sysMap(reservation, totalSize, s.sysStat)
+	sysUsed(reservation, totalSize)
+
+	// Iterate over the reservation and cut it up into slices.
+	//
+	// Maintain i as the byte offset from reservation where
+	// the new slice should start.
+	for l, shift := range levelShift {
+		entries := 1 << (heapAddrBits - shift)
+
+		// Put this reservation into a slice.
+		sl := notInHeapSlice{(*notInHeap)(reservation), 0, entries}
+		s.summary[l] = *(*[]pallocSum)(unsafe.Pointer(&sl))
+
+		reservation = add(reservation, uintptr(entries)*pallocSumBytes)
+	}
+}
+
+// See mpagealloc_64bit.go for details.
+func (s *pageAlloc) sysGrow(base, limit uintptr) {
+	if base%pallocChunkBytes != 0 || limit%pallocChunkBytes != 0 {
+		print("runtime: base = ", hex(base), ", limit = ", hex(limit), "\n")
+		throw("sysGrow bounds not aligned to pallocChunkBytes")
+	}
+
+	// Walk up the tree and update the summary slices.
+	for l := len(s.summary) - 1; l >= 0; l-- {
+		// Figure out what part of the summary array this new address space needs.
+		// Note that we need to align the ranges to the block width (1<<levelBits[l])
+		// at this level because the full block is needed to compute the summary for
+		// the next level.
+		lo, hi := addrsToSummaryRange(l, base, limit)
+		_, hi = blockAlignSummaryRange(l, lo, hi)
+		if hi > len(s.summary[l]) {
+			s.summary[l] = s.summary[l][:hi]
+		}
+	}
+}
diff --git a/libgo/go/runtime/mpagealloc_64bit.go b/libgo/go/runtime/mpagealloc_64bit.go
new file mode 100644
index 0000000..dd44da1
--- /dev/null
+++ b/libgo/go/runtime/mpagealloc_64bit.go
@@ -0,0 +1,180 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build amd64 !darwin,arm64 mips64 mips64le ppc64 ppc64le s390x arm64be alpha sparc64 ia64 riscv64
+
+// See mpagealloc_32bit.go for why darwin/arm64 is excluded here.
+
+package runtime
+
+import "unsafe"
+
+const (
+	// The number of levels in the radix tree.
+	summaryLevels = 5
+
+	// Constants for testing.
+	pageAlloc32Bit = 0
+	pageAlloc64Bit = 1
+
+	// Number of bits needed to represent all indices into the L1 of the
+	// chunks map.
+	//
+	// See (*pageAlloc).chunks for more details. Update the documentation
+	// there should this number change.
+	pallocChunksL1Bits = 13
+)
+
+// levelBits is the number of bits in the radix for a given level in the super summary
+// structure.
+//
+// The sum of all the entries of levelBits should equal heapAddrBits.
+var levelBits = [summaryLevels]uint{
+	summaryL0Bits,
+	summaryLevelBits,
+	summaryLevelBits,
+	summaryLevelBits,
+	summaryLevelBits,
+}
+
+// levelShift is the number of bits to shift to acquire the radix for a given level
+// in the super summary structure.
+//
+// With levelShift, one can compute the index of the summary at level l related to a
+// pointer p by doing:
+//   p >> levelShift[l]
+var levelShift = [summaryLevels]uint{
+	heapAddrBits - summaryL0Bits,
+	heapAddrBits - summaryL0Bits - 1*summaryLevelBits,
+	heapAddrBits - summaryL0Bits - 2*summaryLevelBits,
+	heapAddrBits - summaryL0Bits - 3*summaryLevelBits,
+	heapAddrBits - summaryL0Bits - 4*summaryLevelBits,
+}
+
+// levelLogPages is log2 the maximum number of runtime pages in the address space
+// a summary in the given level represents.
+//
+// The leaf level always represents exactly log2 of 1 chunk's worth of pages.
+var levelLogPages = [summaryLevels]uint{
+	logPallocChunkPages + 4*summaryLevelBits,
+	logPallocChunkPages + 3*summaryLevelBits,
+	logPallocChunkPages + 2*summaryLevelBits,
+	logPallocChunkPages + 1*summaryLevelBits,
+	logPallocChunkPages,
+}
+
+// sysInit performs architecture-dependent initialization of fields
+// in pageAlloc. pageAlloc should be uninitialized except for sysStat
+// if any runtime statistic should be updated.
+func (s *pageAlloc) sysInit() {
+	// Reserve memory for each level. This will get mapped in
+	// as R/W by setArenas.
+	for l, shift := range levelShift {
+		entries := 1 << (heapAddrBits - shift)
+
+		// Reserve b bytes of memory anywhere in the address space.
+		b := alignUp(uintptr(entries)*pallocSumBytes, physPageSize)
+		r := sysReserve(nil, b)
+		if r == nil {
+			throw("failed to reserve page summary memory")
+		}
+
+		// Put this reservation into a slice.
+		sl := notInHeapSlice{(*notInHeap)(r), 0, entries}
+		s.summary[l] = *(*[]pallocSum)(unsafe.Pointer(&sl))
+	}
+}
+
+// sysGrow performs architecture-dependent operations on heap
+// growth for the page allocator, such as mapping in new memory
+// for summaries. It also updates the length of the slices in
+// s.summary.
+//
+// base is the base of the newly-added heap memory and limit is
+// the first address past the end of the newly-added heap memory.
+// Both must be aligned to pallocChunkBytes.
+//
+// The caller must update s.start and s.end after calling sysGrow.
+func (s *pageAlloc) sysGrow(base, limit uintptr) {
+	if base%pallocChunkBytes != 0 || limit%pallocChunkBytes != 0 {
+		print("runtime: base = ", hex(base), ", limit = ", hex(limit), "\n")
+		throw("sysGrow bounds not aligned to pallocChunkBytes")
+	}
+
+	// addrRangeToSummaryRange converts a range of addresses into a range
+	// of summary indices which must be mapped to support those addresses
+	// in the summary range.
+	addrRangeToSummaryRange := func(level int, r addrRange) (int, int) {
+		sumIdxBase, sumIdxLimit := addrsToSummaryRange(level, r.base, r.limit)
+		return blockAlignSummaryRange(level, sumIdxBase, sumIdxLimit)
+	}
+
+	// summaryRangeToSumAddrRange converts a range of indices in any
+	// level of s.summary into page-aligned addresses which cover that
+	// range of indices.
+	summaryRangeToSumAddrRange := func(level, sumIdxBase, sumIdxLimit int) addrRange {
+		baseOffset := alignDown(uintptr(sumIdxBase)*pallocSumBytes, physPageSize)
+		limitOffset := alignUp(uintptr(sumIdxLimit)*pallocSumBytes, physPageSize)
+		base := unsafe.Pointer(&s.summary[level][0])
+		return addrRange{
+			uintptr(add(base, baseOffset)),
+			uintptr(add(base, limitOffset)),
+		}
+	}
+
+	// addrRangeToSumAddrRange is a convienience function that converts
+	// an address range r to the address range of the given summary level
+	// that stores the summaries for r.
+	addrRangeToSumAddrRange := func(level int, r addrRange) addrRange {
+		sumIdxBase, sumIdxLimit := addrRangeToSummaryRange(level, r)
+		return summaryRangeToSumAddrRange(level, sumIdxBase, sumIdxLimit)
+	}
+
+	// Find the first inUse index which is strictly greater than base.
+	//
+	// Because this function will never be asked remap the same memory
+	// twice, this index is effectively the index at which we would insert
+	// this new growth, and base will never overlap/be contained within
+	// any existing range.
+	//
+	// This will be used to look at what memory in the summary array is already
+	// mapped before and after this new range.
+	inUseIndex := s.inUse.findSucc(base)
+
+	// Walk up the radix tree and map summaries in as needed.
+	for l := range s.summary {
+		// Figure out what part of the summary array this new address space needs.
+		needIdxBase, needIdxLimit := addrRangeToSummaryRange(l, addrRange{base, limit})
+
+		// Update the summary slices with a new upper-bound. This ensures
+		// we get tight bounds checks on at least the top bound.
+		//
+		// We must do this regardless of whether we map new memory.
+		if needIdxLimit > len(s.summary[l]) {
+			s.summary[l] = s.summary[l][:needIdxLimit]
+		}
+
+		// Compute the needed address range in the summary array for level l.
+		need := summaryRangeToSumAddrRange(l, needIdxBase, needIdxLimit)
+
+		// Prune need down to what needs to be newly mapped. Some parts of it may
+		// already be mapped by what inUse describes due to page alignment requirements
+		// for mapping. prune's invariants are guaranteed by the fact that this
+		// function will never be asked to remap the same memory twice.
+		if inUseIndex > 0 {
+			need = need.subtract(addrRangeToSumAddrRange(l, s.inUse.ranges[inUseIndex-1]))
+		}
+		if inUseIndex < len(s.inUse.ranges) {
+			need = need.subtract(addrRangeToSumAddrRange(l, s.inUse.ranges[inUseIndex]))
+		}
+		// It's possible that after our pruning above, there's nothing new to map.
+		if need.size() == 0 {
+			continue
+		}
+
+		// Map and commit need.
+		sysMap(unsafe.Pointer(need.base), need.size(), s.sysStat)
+		sysUsed(unsafe.Pointer(need.base), need.size())
+	}
+}
diff --git a/libgo/go/runtime/mpagealloc_test.go b/libgo/go/runtime/mpagealloc_test.go
new file mode 100644
index 0000000..6c48296
--- /dev/null
+++ b/libgo/go/runtime/mpagealloc_test.go
@@ -0,0 +1,921 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime_test
+
+import (
+	"fmt"
+	. "runtime"
+	"testing"
+)
+
+func checkPageAlloc(t *testing.T, want, got *PageAlloc) {
+	// Ensure start and end are correct.
+	wantStart, wantEnd := want.Bounds()
+	gotStart, gotEnd := got.Bounds()
+	if gotStart != wantStart {
+		t.Fatalf("start values not equal: got %d, want %d", gotStart, wantStart)
+	}
+	if gotEnd != wantEnd {
+		t.Fatalf("end values not equal: got %d, want %d", gotEnd, wantEnd)
+	}
+
+	for i := gotStart; i < gotEnd; i++ {
+		// Check the bitmaps. Note that we may have nil data.
+		gb, wb := got.PallocData(i), want.PallocData(i)
+		if gb == nil && wb == nil {
+			continue
+		}
+		if (gb == nil && wb != nil) || (gb != nil && wb == nil) {
+			t.Errorf("chunk %d nilness mismatch", i)
+		}
+		if !checkPallocBits(t, gb.PallocBits(), wb.PallocBits()) {
+			t.Logf("in chunk %d (mallocBits)", i)
+		}
+		if !checkPallocBits(t, gb.Scavenged(), wb.Scavenged()) {
+			t.Logf("in chunk %d (scavenged)", i)
+		}
+	}
+	// TODO(mknyszek): Verify summaries too?
+}
+
+func TestPageAllocGrow(t *testing.T) {
+	type test struct {
+		chunks []ChunkIdx
+		inUse  []AddrRange
+	}
+	tests := map[string]test{
+		"One": {
+			chunks: []ChunkIdx{
+				BaseChunkIdx,
+			},
+			inUse: []AddrRange{
+				{PageBase(BaseChunkIdx, 0), PageBase(BaseChunkIdx+1, 0)},
+			},
+		},
+		"Contiguous2": {
+			chunks: []ChunkIdx{
+				BaseChunkIdx,
+				BaseChunkIdx + 1,
+			},
+			inUse: []AddrRange{
+				{PageBase(BaseChunkIdx, 0), PageBase(BaseChunkIdx+2, 0)},
+			},
+		},
+		"Contiguous5": {
+			chunks: []ChunkIdx{
+				BaseChunkIdx,
+				BaseChunkIdx + 1,
+				BaseChunkIdx + 2,
+				BaseChunkIdx + 3,
+				BaseChunkIdx + 4,
+			},
+			inUse: []AddrRange{
+				{PageBase(BaseChunkIdx, 0), PageBase(BaseChunkIdx+5, 0)},
+			},
+		},
+		"Discontiguous": {
+			chunks: []ChunkIdx{
+				BaseChunkIdx,
+				BaseChunkIdx + 2,
+				BaseChunkIdx + 4,
+			},
+			inUse: []AddrRange{
+				{PageBase(BaseChunkIdx, 0), PageBase(BaseChunkIdx+1, 0)},
+				{PageBase(BaseChunkIdx+2, 0), PageBase(BaseChunkIdx+3, 0)},
+				{PageBase(BaseChunkIdx+4, 0), PageBase(BaseChunkIdx+5, 0)},
+			},
+		},
+		"Mixed": {
+			chunks: []ChunkIdx{
+				BaseChunkIdx,
+				BaseChunkIdx + 1,
+				BaseChunkIdx + 2,
+				BaseChunkIdx + 4,
+			},
+			inUse: []AddrRange{
+				{PageBase(BaseChunkIdx, 0), PageBase(BaseChunkIdx+3, 0)},
+				{PageBase(BaseChunkIdx+4, 0), PageBase(BaseChunkIdx+5, 0)},
+			},
+		},
+		"WildlyDiscontiguous": {
+			chunks: []ChunkIdx{
+				BaseChunkIdx,
+				BaseChunkIdx + 1,
+				BaseChunkIdx + 0x10,
+				BaseChunkIdx + 0x21,
+			},
+			inUse: []AddrRange{
+				{PageBase(BaseChunkIdx, 0), PageBase(BaseChunkIdx+2, 0)},
+				{PageBase(BaseChunkIdx+0x10, 0), PageBase(BaseChunkIdx+0x11, 0)},
+				{PageBase(BaseChunkIdx+0x21, 0), PageBase(BaseChunkIdx+0x22, 0)},
+			},
+		},
+		"ManyDiscontiguous": {
+			// The initial cap is 16. Test 33 ranges, to exercise the growth path (twice).
+			chunks: []ChunkIdx{
+				BaseChunkIdx, BaseChunkIdx + 2, BaseChunkIdx + 4, BaseChunkIdx + 6,
+				BaseChunkIdx + 8, BaseChunkIdx + 10, BaseChunkIdx + 12, BaseChunkIdx + 14,
+				BaseChunkIdx + 16, BaseChunkIdx + 18, BaseChunkIdx + 20, BaseChunkIdx + 22,
+				BaseChunkIdx + 24, BaseChunkIdx + 26, BaseChunkIdx + 28, BaseChunkIdx + 30,
+				BaseChunkIdx + 32, BaseChunkIdx + 34, BaseChunkIdx + 36, BaseChunkIdx + 38,
+				BaseChunkIdx + 40, BaseChunkIdx + 42, BaseChunkIdx + 44, BaseChunkIdx + 46,
+				BaseChunkIdx + 48, BaseChunkIdx + 50, BaseChunkIdx + 52, BaseChunkIdx + 54,
+				BaseChunkIdx + 56, BaseChunkIdx + 58, BaseChunkIdx + 60, BaseChunkIdx + 62,
+				BaseChunkIdx + 64,
+			},
+			inUse: []AddrRange{
+				{PageBase(BaseChunkIdx, 0), PageBase(BaseChunkIdx+1, 0)},
+				{PageBase(BaseChunkIdx+2, 0), PageBase(BaseChunkIdx+3, 0)},
+				{PageBase(BaseChunkIdx+4, 0), PageBase(BaseChunkIdx+5, 0)},
+				{PageBase(BaseChunkIdx+6, 0), PageBase(BaseChunkIdx+7, 0)},
+				{PageBase(BaseChunkIdx+8, 0), PageBase(BaseChunkIdx+9, 0)},
+				{PageBase(BaseChunkIdx+10, 0), PageBase(BaseChunkIdx+11, 0)},
+				{PageBase(BaseChunkIdx+12, 0), PageBase(BaseChunkIdx+13, 0)},
+				{PageBase(BaseChunkIdx+14, 0), PageBase(BaseChunkIdx+15, 0)},
+				{PageBase(BaseChunkIdx+16, 0), PageBase(BaseChunkIdx+17, 0)},
+				{PageBase(BaseChunkIdx+18, 0), PageBase(BaseChunkIdx+19, 0)},
+				{PageBase(BaseChunkIdx+20, 0), PageBase(BaseChunkIdx+21, 0)},
+				{PageBase(BaseChunkIdx+22, 0), PageBase(BaseChunkIdx+23, 0)},
+				{PageBase(BaseChunkIdx+24, 0), PageBase(BaseChunkIdx+25, 0)},
+				{PageBase(BaseChunkIdx+26, 0), PageBase(BaseChunkIdx+27, 0)},
+				{PageBase(BaseChunkIdx+28, 0), PageBase(BaseChunkIdx+29, 0)},
+				{PageBase(BaseChunkIdx+30, 0), PageBase(BaseChunkIdx+31, 0)},
+				{PageBase(BaseChunkIdx+32, 0), PageBase(BaseChunkIdx+33, 0)},
+				{PageBase(BaseChunkIdx+34, 0), PageBase(BaseChunkIdx+35, 0)},
+				{PageBase(BaseChunkIdx+36, 0), PageBase(BaseChunkIdx+37, 0)},
+				{PageBase(BaseChunkIdx+38, 0), PageBase(BaseChunkIdx+39, 0)},
+				{PageBase(BaseChunkIdx+40, 0), PageBase(BaseChunkIdx+41, 0)},
+				{PageBase(BaseChunkIdx+42, 0), PageBase(BaseChunkIdx+43, 0)},
+				{PageBase(BaseChunkIdx+44, 0), PageBase(BaseChunkIdx+45, 0)},
+				{PageBase(BaseChunkIdx+46, 0), PageBase(BaseChunkIdx+47, 0)},
+				{PageBase(BaseChunkIdx+48, 0), PageBase(BaseChunkIdx+49, 0)},
+				{PageBase(BaseChunkIdx+50, 0), PageBase(BaseChunkIdx+51, 0)},
+				{PageBase(BaseChunkIdx+52, 0), PageBase(BaseChunkIdx+53, 0)},
+				{PageBase(BaseChunkIdx+54, 0), PageBase(BaseChunkIdx+55, 0)},
+				{PageBase(BaseChunkIdx+56, 0), PageBase(BaseChunkIdx+57, 0)},
+				{PageBase(BaseChunkIdx+58, 0), PageBase(BaseChunkIdx+59, 0)},
+				{PageBase(BaseChunkIdx+60, 0), PageBase(BaseChunkIdx+61, 0)},
+				{PageBase(BaseChunkIdx+62, 0), PageBase(BaseChunkIdx+63, 0)},
+				{PageBase(BaseChunkIdx+64, 0), PageBase(BaseChunkIdx+65, 0)},
+			},
+		},
+	}
+	if PageAlloc64Bit != 0 {
+		tests["ExtremelyDiscontiguous"] = test{
+			chunks: []ChunkIdx{
+				BaseChunkIdx,
+				BaseChunkIdx + 0x100000, // constant translates to O(TiB)
+			},
+			inUse: []AddrRange{
+				{PageBase(BaseChunkIdx, 0), PageBase(BaseChunkIdx+1, 0)},
+				{PageBase(BaseChunkIdx+0x100000, 0), PageBase(BaseChunkIdx+0x100001, 0)},
+			},
+		}
+	}
+	for name, v := range tests {
+		v := v
+		t.Run(name, func(t *testing.T) {
+			// By creating a new pageAlloc, we will
+			// grow it for each chunk defined in x.
+			x := make(map[ChunkIdx][]BitRange)
+			for _, c := range v.chunks {
+				x[c] = []BitRange{}
+			}
+			b := NewPageAlloc(x, nil)
+			defer FreePageAlloc(b)
+
+			got := b.InUse()
+			want := v.inUse
+
+			// Check for mismatches.
+			if len(got) != len(want) {
+				t.Fail()
+			} else {
+				for i := range want {
+					if want[i] != got[i] {
+						t.Fail()
+						break
+					}
+				}
+			}
+			if t.Failed() {
+				t.Logf("found inUse mismatch")
+				t.Logf("got:")
+				for i, r := range got {
+					t.Logf("\t#%d [0x%x, 0x%x)", i, r.Base, r.Limit)
+				}
+				t.Logf("want:")
+				for i, r := range want {
+					t.Logf("\t#%d [0x%x, 0x%x)", i, r.Base, r.Limit)
+				}
+			}
+		})
+	}
+}
+
+func TestPageAllocAlloc(t *testing.T) {
+	type hit struct {
+		npages, base, scav uintptr
+	}
+	tests := map[string]struct {
+		scav   map[ChunkIdx][]BitRange
+		before map[ChunkIdx][]BitRange
+		after  map[ChunkIdx][]BitRange
+		hits   []hit
+	}{
+		"AllFree1": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 1}, {2, 2}},
+			},
+			hits: []hit{
+				{1, PageBase(BaseChunkIdx, 0), PageSize},
+				{1, PageBase(BaseChunkIdx, 1), 0},
+				{1, PageBase(BaseChunkIdx, 2), PageSize},
+				{1, PageBase(BaseChunkIdx, 3), PageSize},
+				{1, PageBase(BaseChunkIdx, 4), 0},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 5}},
+			},
+		},
+		"ManyArena1": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages - 1}},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+			},
+			hits: []hit{
+				{1, PageBase(BaseChunkIdx+2, PallocChunkPages-1), PageSize},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+			},
+		},
+		"NotContiguous1": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:        {{0, PallocChunkPages}},
+				BaseChunkIdx + 0xff: {{0, 0}},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:        {{0, PallocChunkPages}},
+				BaseChunkIdx + 0xff: {{0, PallocChunkPages}},
+			},
+			hits: []hit{
+				{1, PageBase(BaseChunkIdx+0xff, 0), PageSize},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:        {{0, PallocChunkPages}},
+				BaseChunkIdx + 0xff: {{0, 1}},
+			},
+		},
+		"AllFree2": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 3}, {7, 1}},
+			},
+			hits: []hit{
+				{2, PageBase(BaseChunkIdx, 0), 2 * PageSize},
+				{2, PageBase(BaseChunkIdx, 2), PageSize},
+				{2, PageBase(BaseChunkIdx, 4), 0},
+				{2, PageBase(BaseChunkIdx, 6), PageSize},
+				{2, PageBase(BaseChunkIdx, 8), 0},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 10}},
+			},
+		},
+		"Straddle2": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages - 1}},
+				BaseChunkIdx + 1: {{1, PallocChunkPages - 1}},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{PallocChunkPages - 1, 1}},
+				BaseChunkIdx + 1: {},
+			},
+			hits: []hit{
+				{2, PageBase(BaseChunkIdx, PallocChunkPages-1), PageSize},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+			},
+		},
+		"AllFree5": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 8}, {9, 1}, {17, 5}},
+			},
+			hits: []hit{
+				{5, PageBase(BaseChunkIdx, 0), 5 * PageSize},
+				{5, PageBase(BaseChunkIdx, 5), 4 * PageSize},
+				{5, PageBase(BaseChunkIdx, 10), 0},
+				{5, PageBase(BaseChunkIdx, 15), 3 * PageSize},
+				{5, PageBase(BaseChunkIdx, 20), 2 * PageSize},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 25}},
+			},
+		},
+		"AllFree64": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{21, 1}, {63, 65}},
+			},
+			hits: []hit{
+				{64, PageBase(BaseChunkIdx, 0), 2 * PageSize},
+				{64, PageBase(BaseChunkIdx, 64), 64 * PageSize},
+				{64, PageBase(BaseChunkIdx, 128), 0},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 192}},
+			},
+		},
+		"AllFree65": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{129, 1}},
+			},
+			hits: []hit{
+				{65, PageBase(BaseChunkIdx, 0), 0},
+				{65, PageBase(BaseChunkIdx, 65), PageSize},
+				{65, PageBase(BaseChunkIdx, 130), 0},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 195}},
+			},
+		},
+		// TODO(mknyszek): Add tests close to the chunk size.
+		"ExhaustPallocChunkPages-3": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{10, 1}},
+			},
+			hits: []hit{
+				{PallocChunkPages - 3, PageBase(BaseChunkIdx, 0), PageSize},
+				{PallocChunkPages - 3, 0, 0},
+				{1, PageBase(BaseChunkIdx, PallocChunkPages-3), 0},
+				{2, PageBase(BaseChunkIdx, PallocChunkPages-2), 0},
+				{1, 0, 0},
+				{PallocChunkPages - 3, 0, 0},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+		},
+		"AllFreePallocChunkPages": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 1}, {PallocChunkPages - 1, 1}},
+			},
+			hits: []hit{
+				{PallocChunkPages, PageBase(BaseChunkIdx, 0), 2 * PageSize},
+				{PallocChunkPages, 0, 0},
+				{1, 0, 0},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+		},
+		"StraddlePallocChunkPages": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages / 2}},
+				BaseChunkIdx + 1: {{PallocChunkPages / 2, PallocChunkPages / 2}},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {{3, 100}},
+			},
+			hits: []hit{
+				{PallocChunkPages, PageBase(BaseChunkIdx, PallocChunkPages/2), 100 * PageSize},
+				{PallocChunkPages, 0, 0},
+				{1, 0, 0},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+			},
+		},
+		"StraddlePallocChunkPages+1": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages / 2}},
+				BaseChunkIdx + 1: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+			},
+			hits: []hit{
+				{PallocChunkPages + 1, PageBase(BaseChunkIdx, PallocChunkPages/2), (PallocChunkPages + 1) * PageSize},
+				{PallocChunkPages, 0, 0},
+				{1, PageBase(BaseChunkIdx+1, PallocChunkPages/2+1), PageSize},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages/2 + 2}},
+			},
+		},
+		"AllFreePallocChunkPages*2": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+			},
+			hits: []hit{
+				{PallocChunkPages * 2, PageBase(BaseChunkIdx, 0), 0},
+				{PallocChunkPages * 2, 0, 0},
+				{1, 0, 0},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+			},
+		},
+		"NotContiguousPallocChunkPages*2": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:        {},
+				BaseChunkIdx + 0x40: {},
+				BaseChunkIdx + 0x41: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:        {{0, PallocChunkPages}},
+				BaseChunkIdx + 0x40: {},
+				BaseChunkIdx + 0x41: {},
+			},
+			hits: []hit{
+				{PallocChunkPages * 2, PageBase(BaseChunkIdx+0x40, 0), 0},
+				{21, PageBase(BaseChunkIdx, 0), 21 * PageSize},
+				{1, PageBase(BaseChunkIdx, 21), PageSize},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:        {{0, 22}},
+				BaseChunkIdx + 0x40: {{0, PallocChunkPages}},
+				BaseChunkIdx + 0x41: {{0, PallocChunkPages}},
+			},
+		},
+		"StraddlePallocChunkPages*2": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages / 2}},
+				BaseChunkIdx + 1: {},
+				BaseChunkIdx + 2: {{PallocChunkPages / 2, PallocChunkPages / 2}},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, 7}},
+				BaseChunkIdx + 1: {{3, 5}, {121, 10}},
+				BaseChunkIdx + 2: {{PallocChunkPages/2 + 12, 2}},
+			},
+			hits: []hit{
+				{PallocChunkPages * 2, PageBase(BaseChunkIdx, PallocChunkPages/2), 15 * PageSize},
+				{PallocChunkPages * 2, 0, 0},
+				{1, 0, 0},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+			},
+		},
+		"StraddlePallocChunkPages*5/4": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages * 3 / 4}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages * 3 / 4}},
+				BaseChunkIdx + 3: {{0, 0}},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{PallocChunkPages / 2, PallocChunkPages/4 + 1}},
+				BaseChunkIdx + 2: {{PallocChunkPages / 3, 1}},
+				BaseChunkIdx + 3: {{PallocChunkPages * 2 / 3, 1}},
+			},
+			hits: []hit{
+				{PallocChunkPages * 5 / 4, PageBase(BaseChunkIdx+2, PallocChunkPages*3/4), PageSize},
+				{PallocChunkPages * 5 / 4, 0, 0},
+				{1, PageBase(BaseChunkIdx+1, PallocChunkPages*3/4), PageSize},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages*3/4 + 1}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+				BaseChunkIdx + 3: {{0, PallocChunkPages}},
+			},
+		},
+		"AllFreePallocChunkPages*7+5": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+				BaseChunkIdx + 2: {},
+				BaseChunkIdx + 3: {},
+				BaseChunkIdx + 4: {},
+				BaseChunkIdx + 5: {},
+				BaseChunkIdx + 6: {},
+				BaseChunkIdx + 7: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{50, 1}},
+				BaseChunkIdx + 1: {{31, 1}},
+				BaseChunkIdx + 2: {{7, 1}},
+				BaseChunkIdx + 3: {{200, 1}},
+				BaseChunkIdx + 4: {{3, 1}},
+				BaseChunkIdx + 5: {{51, 1}},
+				BaseChunkIdx + 6: {{20, 1}},
+				BaseChunkIdx + 7: {{1, 1}},
+			},
+			hits: []hit{
+				{PallocChunkPages*7 + 5, PageBase(BaseChunkIdx, 0), 8 * PageSize},
+				{PallocChunkPages*7 + 5, 0, 0},
+				{1, PageBase(BaseChunkIdx+7, 5), 0},
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+				BaseChunkIdx + 3: {{0, PallocChunkPages}},
+				BaseChunkIdx + 4: {{0, PallocChunkPages}},
+				BaseChunkIdx + 5: {{0, PallocChunkPages}},
+				BaseChunkIdx + 6: {{0, PallocChunkPages}},
+				BaseChunkIdx + 7: {{0, 6}},
+			},
+		},
+	}
+	for name, v := range tests {
+		v := v
+		t.Run(name, func(t *testing.T) {
+			b := NewPageAlloc(v.before, v.scav)
+			defer FreePageAlloc(b)
+
+			for iter, i := range v.hits {
+				a, s := b.Alloc(i.npages)
+				if a != i.base {
+					t.Fatalf("bad alloc #%d: want base 0x%x, got 0x%x", iter+1, i.base, a)
+				}
+				if s != i.scav {
+					t.Fatalf("bad alloc #%d: want scav %d, got %d", iter+1, i.scav, s)
+				}
+			}
+			want := NewPageAlloc(v.after, v.scav)
+			defer FreePageAlloc(want)
+
+			checkPageAlloc(t, want, b)
+		})
+	}
+}
+
+func TestPageAllocExhaust(t *testing.T) {
+	for _, npages := range []uintptr{1, 2, 3, 4, 5, 8, 16, 64, 1024, 1025, 2048, 2049} {
+		npages := npages
+		t.Run(fmt.Sprintf("%d", npages), func(t *testing.T) {
+			// Construct b.
+			bDesc := make(map[ChunkIdx][]BitRange)
+			for i := ChunkIdx(0); i < 4; i++ {
+				bDesc[BaseChunkIdx+i] = []BitRange{}
+			}
+			b := NewPageAlloc(bDesc, nil)
+			defer FreePageAlloc(b)
+
+			// Allocate into b with npages until we've exhausted the heap.
+			nAlloc := (PallocChunkPages * 4) / int(npages)
+			for i := 0; i < nAlloc; i++ {
+				addr := PageBase(BaseChunkIdx, uint(i)*uint(npages))
+				if a, _ := b.Alloc(npages); a != addr {
+					t.Fatalf("bad alloc #%d: want 0x%x, got 0x%x", i+1, addr, a)
+				}
+			}
+
+			// Check to make sure the next allocation fails.
+			if a, _ := b.Alloc(npages); a != 0 {
+				t.Fatalf("bad alloc #%d: want 0, got 0x%x", nAlloc, a)
+			}
+
+			// Construct what we want the heap to look like now.
+			allocPages := nAlloc * int(npages)
+			wantDesc := make(map[ChunkIdx][]BitRange)
+			for i := ChunkIdx(0); i < 4; i++ {
+				if allocPages >= PallocChunkPages {
+					wantDesc[BaseChunkIdx+i] = []BitRange{{0, PallocChunkPages}}
+					allocPages -= PallocChunkPages
+				} else if allocPages > 0 {
+					wantDesc[BaseChunkIdx+i] = []BitRange{{0, uint(allocPages)}}
+					allocPages = 0
+				} else {
+					wantDesc[BaseChunkIdx+i] = []BitRange{}
+				}
+			}
+			want := NewPageAlloc(wantDesc, nil)
+			defer FreePageAlloc(want)
+
+			// Check to make sure the heap b matches what we want.
+			checkPageAlloc(t, want, b)
+		})
+	}
+}
+
+func TestPageAllocFree(t *testing.T) {
+	tests := map[string]struct {
+		before map[ChunkIdx][]BitRange
+		after  map[ChunkIdx][]BitRange
+		npages uintptr
+		frees  []uintptr
+	}{
+		"Free1": {
+			npages: 1,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, 0),
+				PageBase(BaseChunkIdx, 1),
+				PageBase(BaseChunkIdx, 2),
+				PageBase(BaseChunkIdx, 3),
+				PageBase(BaseChunkIdx, 4),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{5, PallocChunkPages - 5}},
+			},
+		},
+		"ManyArena1": {
+			npages: 1,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, PallocChunkPages/2),
+				PageBase(BaseChunkIdx+1, 0),
+				PageBase(BaseChunkIdx+2, PallocChunkPages-1),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages / 2}, {PallocChunkPages/2 + 1, PallocChunkPages/2 - 1}},
+				BaseChunkIdx + 1: {{1, PallocChunkPages - 1}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages - 1}},
+			},
+		},
+		"Free2": {
+			npages: 2,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, 0),
+				PageBase(BaseChunkIdx, 2),
+				PageBase(BaseChunkIdx, 4),
+				PageBase(BaseChunkIdx, 6),
+				PageBase(BaseChunkIdx, 8),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{10, PallocChunkPages - 10}},
+			},
+		},
+		"Straddle2": {
+			npages: 2,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{PallocChunkPages - 1, 1}},
+				BaseChunkIdx + 1: {{0, 1}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, PallocChunkPages-1),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+			},
+		},
+		"Free5": {
+			npages: 5,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, 0),
+				PageBase(BaseChunkIdx, 5),
+				PageBase(BaseChunkIdx, 10),
+				PageBase(BaseChunkIdx, 15),
+				PageBase(BaseChunkIdx, 20),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{25, PallocChunkPages - 25}},
+			},
+		},
+		"Free64": {
+			npages: 64,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, 0),
+				PageBase(BaseChunkIdx, 64),
+				PageBase(BaseChunkIdx, 128),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{192, PallocChunkPages - 192}},
+			},
+		},
+		"Free65": {
+			npages: 65,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, 0),
+				PageBase(BaseChunkIdx, 65),
+				PageBase(BaseChunkIdx, 130),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{195, PallocChunkPages - 195}},
+			},
+		},
+		"FreePallocChunkPages": {
+			npages: PallocChunkPages,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, 0),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+		},
+		"StraddlePallocChunkPages": {
+			npages: PallocChunkPages,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{PallocChunkPages / 2, PallocChunkPages / 2}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages / 2}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, PallocChunkPages/2),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+			},
+		},
+		"StraddlePallocChunkPages+1": {
+			npages: PallocChunkPages + 1,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, PallocChunkPages/2),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages / 2}},
+				BaseChunkIdx + 1: {{PallocChunkPages/2 + 1, PallocChunkPages/2 - 1}},
+			},
+		},
+		"FreePallocChunkPages*2": {
+			npages: PallocChunkPages * 2,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, 0),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+			},
+		},
+		"StraddlePallocChunkPages*2": {
+			npages: PallocChunkPages * 2,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, PallocChunkPages/2),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages / 2}},
+				BaseChunkIdx + 1: {},
+				BaseChunkIdx + 2: {{PallocChunkPages / 2, PallocChunkPages / 2}},
+			},
+		},
+		"AllFreePallocChunkPages*7+5": {
+			npages: PallocChunkPages*7 + 5,
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+				BaseChunkIdx + 3: {{0, PallocChunkPages}},
+				BaseChunkIdx + 4: {{0, PallocChunkPages}},
+				BaseChunkIdx + 5: {{0, PallocChunkPages}},
+				BaseChunkIdx + 6: {{0, PallocChunkPages}},
+				BaseChunkIdx + 7: {{0, PallocChunkPages}},
+			},
+			frees: []uintptr{
+				PageBase(BaseChunkIdx, 0),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+				BaseChunkIdx + 2: {},
+				BaseChunkIdx + 3: {},
+				BaseChunkIdx + 4: {},
+				BaseChunkIdx + 5: {},
+				BaseChunkIdx + 6: {},
+				BaseChunkIdx + 7: {{5, PallocChunkPages - 5}},
+			},
+		},
+	}
+	for name, v := range tests {
+		v := v
+		t.Run(name, func(t *testing.T) {
+			b := NewPageAlloc(v.before, nil)
+			defer FreePageAlloc(b)
+
+			for _, addr := range v.frees {
+				b.Free(addr, v.npages)
+			}
+			want := NewPageAlloc(v.after, nil)
+			defer FreePageAlloc(want)
+
+			checkPageAlloc(t, want, b)
+		})
+	}
+}
+
+func TestPageAllocAllocAndFree(t *testing.T) {
+	type hit struct {
+		alloc  bool
+		npages uintptr
+		base   uintptr
+	}
+	tests := map[string]struct {
+		init map[ChunkIdx][]BitRange
+		hits []hit
+	}{
+		// TODO(mknyszek): Write more tests here.
+		"Chunks8": {
+			init: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {},
+				BaseChunkIdx + 1: {},
+				BaseChunkIdx + 2: {},
+				BaseChunkIdx + 3: {},
+				BaseChunkIdx + 4: {},
+				BaseChunkIdx + 5: {},
+				BaseChunkIdx + 6: {},
+				BaseChunkIdx + 7: {},
+			},
+			hits: []hit{
+				{true, PallocChunkPages * 8, PageBase(BaseChunkIdx, 0)},
+				{false, PallocChunkPages * 8, PageBase(BaseChunkIdx, 0)},
+				{true, PallocChunkPages * 8, PageBase(BaseChunkIdx, 0)},
+				{false, PallocChunkPages * 8, PageBase(BaseChunkIdx, 0)},
+				{true, PallocChunkPages * 8, PageBase(BaseChunkIdx, 0)},
+				{false, PallocChunkPages * 8, PageBase(BaseChunkIdx, 0)},
+				{true, 1, PageBase(BaseChunkIdx, 0)},
+				{false, 1, PageBase(BaseChunkIdx, 0)},
+				{true, PallocChunkPages * 8, PageBase(BaseChunkIdx, 0)},
+			},
+		},
+	}
+	for name, v := range tests {
+		v := v
+		t.Run(name, func(t *testing.T) {
+			b := NewPageAlloc(v.init, nil)
+			defer FreePageAlloc(b)
+
+			for iter, i := range v.hits {
+				if i.alloc {
+					if a, _ := b.Alloc(i.npages); a != i.base {
+						t.Fatalf("bad alloc #%d: want 0x%x, got 0x%x", iter+1, i.base, a)
+					}
+				} else {
+					b.Free(i.base, i.npages)
+				}
+			}
+		})
+	}
+}
diff --git a/libgo/go/runtime/mpagecache.go b/libgo/go/runtime/mpagecache.go
new file mode 100644
index 0000000..9fc338b
--- /dev/null
+++ b/libgo/go/runtime/mpagecache.go
@@ -0,0 +1,156 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import (
+	"runtime/internal/sys"
+	"unsafe"
+)
+
+const pageCachePages = 8 * unsafe.Sizeof(pageCache{}.cache)
+
+// pageCache represents a per-p cache of pages the allocator can
+// allocate from without a lock. More specifically, it represents
+// a pageCachePages*pageSize chunk of memory with 0 or more free
+// pages in it.
+type pageCache struct {
+	base  uintptr // base address of the chunk
+	cache uint64  // 64-bit bitmap representing free pages (1 means free)
+	scav  uint64  // 64-bit bitmap representing scavenged pages (1 means scavenged)
+}
+
+// empty returns true if the pageCache has any free pages, and false
+// otherwise.
+func (c *pageCache) empty() bool {
+	return c.cache == 0
+}
+
+// alloc allocates npages from the page cache and is the main entry
+// point for allocation.
+//
+// Returns a base address and the amount of scavenged memory in the
+// allocated region in bytes.
+//
+// Returns a base address of zero on failure, in which case the
+// amount of scavenged memory should be ignored.
+func (c *pageCache) alloc(npages uintptr) (uintptr, uintptr) {
+	if c.cache == 0 {
+		return 0, 0
+	}
+	if npages == 1 {
+		i := uintptr(sys.TrailingZeros64(c.cache))
+		scav := (c.scav >> i) & 1
+		c.cache &^= 1 << i // set bit to mark in-use
+		c.scav &^= 1 << i  // clear bit to mark unscavenged
+		return c.base + i*pageSize, uintptr(scav) * pageSize
+	}
+	return c.allocN(npages)
+}
+
+// allocN is a helper which attempts to allocate npages worth of pages
+// from the cache. It represents the general case for allocating from
+// the page cache.
+//
+// Returns a base address and the amount of scavenged memory in the
+// allocated region in bytes.
+func (c *pageCache) allocN(npages uintptr) (uintptr, uintptr) {
+	i := findBitRange64(c.cache, uint(npages))
+	if i >= 64 {
+		return 0, 0
+	}
+	mask := ((uint64(1) << npages) - 1) << i
+	scav := sys.OnesCount64(c.scav & mask)
+	c.cache &^= mask // mark in-use bits
+	c.scav &^= mask  // clear scavenged bits
+	return c.base + uintptr(i*pageSize), uintptr(scav) * pageSize
+}
+
+// flush empties out unallocated free pages in the given cache
+// into s. Then, it clears the cache, such that empty returns
+// true.
+//
+// s.mheapLock must be held or the world must be stopped.
+func (c *pageCache) flush(s *pageAlloc) {
+	if c.empty() {
+		return
+	}
+	ci := chunkIndex(c.base)
+	pi := chunkPageIndex(c.base)
+
+	// This method is called very infrequently, so just do the
+	// slower, safer thing by iterating over each bit individually.
+	for i := uint(0); i < 64; i++ {
+		if c.cache&(1<<i) != 0 {
+			s.chunkOf(ci).free1(pi + i)
+		}
+		if c.scav&(1<<i) != 0 {
+			s.chunkOf(ci).scavenged.setRange(pi+i, 1)
+		}
+	}
+	// Since this is a lot like a free, we need to make sure
+	// we update the searchAddr just like free does.
+	if s.compareSearchAddrTo(c.base) < 0 {
+		s.searchAddr = c.base
+	}
+	s.update(c.base, pageCachePages, false, false)
+	*c = pageCache{}
+}
+
+// allocToCache acquires a pageCachePages-aligned chunk of free pages which
+// may not be contiguous, and returns a pageCache structure which owns the
+// chunk.
+//
+// s.mheapLock must be held.
+func (s *pageAlloc) allocToCache() pageCache {
+	// If the searchAddr refers to a region which has a higher address than
+	// any known chunk, then we know we're out of memory.
+	if chunkIndex(s.searchAddr) >= s.end {
+		return pageCache{}
+	}
+	c := pageCache{}
+	ci := chunkIndex(s.searchAddr) // chunk index
+	if s.summary[len(s.summary)-1][ci] != 0 {
+		// Fast path: there's free pages at or near the searchAddr address.
+		chunk := s.chunkOf(ci)
+		j, _ := chunk.find(1, chunkPageIndex(s.searchAddr))
+		if j < 0 {
+			throw("bad summary data")
+		}
+		c = pageCache{
+			base:  chunkBase(ci) + alignDown(uintptr(j), 64)*pageSize,
+			cache: ^chunk.pages64(j),
+			scav:  chunk.scavenged.block64(j),
+		}
+	} else {
+		// Slow path: the searchAddr address had nothing there, so go find
+		// the first free page the slow way.
+		addr, _ := s.find(1)
+		if addr == 0 {
+			// We failed to find adequate free space, so mark the searchAddr as OoM
+			// and return an empty pageCache.
+			s.searchAddr = maxSearchAddr
+			return pageCache{}
+		}
+		ci := chunkIndex(addr)
+		chunk := s.chunkOf(ci)
+		c = pageCache{
+			base:  alignDown(addr, 64*pageSize),
+			cache: ^chunk.pages64(chunkPageIndex(addr)),
+			scav:  chunk.scavenged.block64(chunkPageIndex(addr)),
+		}
+	}
+
+	// Set the bits as allocated and clear the scavenged bits.
+	s.allocRange(c.base, pageCachePages)
+
+	// Update as an allocation, but note that it's not contiguous.
+	s.update(c.base, pageCachePages, false, true)
+
+	// We're always searching for the first free page, and we always know the
+	// up to pageCache size bits will be allocated, so we can always move the
+	// searchAddr past the cache.
+	s.searchAddr = c.base + pageSize*pageCachePages
+	return c
+}
diff --git a/libgo/go/runtime/mpagecache_test.go b/libgo/go/runtime/mpagecache_test.go
new file mode 100644
index 0000000..6fdaa04
--- /dev/null
+++ b/libgo/go/runtime/mpagecache_test.go
@@ -0,0 +1,364 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime_test
+
+import (
+	"math/rand"
+	. "runtime"
+	"testing"
+)
+
+func checkPageCache(t *testing.T, got, want PageCache) {
+	if got.Base() != want.Base() {
+		t.Errorf("bad pageCache base: got 0x%x, want 0x%x", got.Base(), want.Base())
+	}
+	if got.Cache() != want.Cache() {
+		t.Errorf("bad pageCache bits: got %016x, want %016x", got.Base(), want.Base())
+	}
+	if got.Scav() != want.Scav() {
+		t.Errorf("bad pageCache scav: got %016x, want %016x", got.Scav(), want.Scav())
+	}
+}
+
+func TestPageCacheAlloc(t *testing.T) {
+	base := PageBase(BaseChunkIdx, 0)
+	type hit struct {
+		npages uintptr
+		base   uintptr
+		scav   uintptr
+	}
+	tests := map[string]struct {
+		cache PageCache
+		hits  []hit
+	}{
+		"Empty": {
+			cache: NewPageCache(base, 0, 0),
+			hits: []hit{
+				{1, 0, 0},
+				{2, 0, 0},
+				{3, 0, 0},
+				{4, 0, 0},
+				{5, 0, 0},
+				{11, 0, 0},
+				{12, 0, 0},
+				{16, 0, 0},
+				{27, 0, 0},
+				{32, 0, 0},
+				{43, 0, 0},
+				{57, 0, 0},
+				{64, 0, 0},
+				{121, 0, 0},
+			},
+		},
+		"Lo1": {
+			cache: NewPageCache(base, 0x1, 0x1),
+			hits: []hit{
+				{1, base, PageSize},
+				{1, 0, 0},
+				{10, 0, 0},
+			},
+		},
+		"Hi1": {
+			cache: NewPageCache(base, 0x1<<63, 0x1),
+			hits: []hit{
+				{1, base + 63*PageSize, 0},
+				{1, 0, 0},
+				{10, 0, 0},
+			},
+		},
+		"Swiss1": {
+			cache: NewPageCache(base, 0x20005555, 0x5505),
+			hits: []hit{
+				{2, 0, 0},
+				{1, base, PageSize},
+				{1, base + 2*PageSize, PageSize},
+				{1, base + 4*PageSize, 0},
+				{1, base + 6*PageSize, 0},
+				{1, base + 8*PageSize, PageSize},
+				{1, base + 10*PageSize, PageSize},
+				{1, base + 12*PageSize, PageSize},
+				{1, base + 14*PageSize, PageSize},
+				{1, base + 29*PageSize, 0},
+				{1, 0, 0},
+				{10, 0, 0},
+			},
+		},
+		"Lo2": {
+			cache: NewPageCache(base, 0x3, 0x2<<62),
+			hits: []hit{
+				{2, base, 0},
+				{2, 0, 0},
+				{1, 0, 0},
+			},
+		},
+		"Hi2": {
+			cache: NewPageCache(base, 0x3<<62, 0x3<<62),
+			hits: []hit{
+				{2, base + 62*PageSize, 2 * PageSize},
+				{2, 0, 0},
+				{1, 0, 0},
+			},
+		},
+		"Swiss2": {
+			cache: NewPageCache(base, 0x3333<<31, 0x3030<<31),
+			hits: []hit{
+				{2, base + 31*PageSize, 0},
+				{2, base + 35*PageSize, 2 * PageSize},
+				{2, base + 39*PageSize, 0},
+				{2, base + 43*PageSize, 2 * PageSize},
+				{2, 0, 0},
+			},
+		},
+		"Hi53": {
+			cache: NewPageCache(base, ((uint64(1)<<53)-1)<<10, ((uint64(1)<<16)-1)<<10),
+			hits: []hit{
+				{53, base + 10*PageSize, 16 * PageSize},
+				{53, 0, 0},
+				{1, 0, 0},
+			},
+		},
+		"Full53": {
+			cache: NewPageCache(base, ^uint64(0), ((uint64(1)<<16)-1)<<10),
+			hits: []hit{
+				{53, base, 16 * PageSize},
+				{53, 0, 0},
+				{1, base + 53*PageSize, 0},
+			},
+		},
+		"Full64": {
+			cache: NewPageCache(base, ^uint64(0), ^uint64(0)),
+			hits: []hit{
+				{64, base, 64 * PageSize},
+				{64, 0, 0},
+				{1, 0, 0},
+			},
+		},
+		"FullMixed": {
+			cache: NewPageCache(base, ^uint64(0), ^uint64(0)),
+			hits: []hit{
+				{5, base, 5 * PageSize},
+				{7, base + 5*PageSize, 7 * PageSize},
+				{1, base + 12*PageSize, 1 * PageSize},
+				{23, base + 13*PageSize, 23 * PageSize},
+				{63, 0, 0},
+				{3, base + 36*PageSize, 3 * PageSize},
+				{3, base + 39*PageSize, 3 * PageSize},
+				{3, base + 42*PageSize, 3 * PageSize},
+				{12, base + 45*PageSize, 12 * PageSize},
+				{11, 0, 0},
+				{4, base + 57*PageSize, 4 * PageSize},
+				{4, 0, 0},
+				{6, 0, 0},
+				{36, 0, 0},
+				{2, base + 61*PageSize, 2 * PageSize},
+				{3, 0, 0},
+				{1, base + 63*PageSize, 1 * PageSize},
+				{4, 0, 0},
+				{2, 0, 0},
+				{62, 0, 0},
+				{1, 0, 0},
+			},
+		},
+	}
+	for name, test := range tests {
+		test := test
+		t.Run(name, func(t *testing.T) {
+			c := test.cache
+			for i, h := range test.hits {
+				b, s := c.Alloc(h.npages)
+				if b != h.base {
+					t.Fatalf("bad alloc base #%d: got 0x%x, want 0x%x", i, b, h.base)
+				}
+				if s != h.scav {
+					t.Fatalf("bad alloc scav #%d: got %d, want %d", i, s, h.scav)
+				}
+			}
+		})
+	}
+}
+
+func TestPageCacheFlush(t *testing.T) {
+	bits64ToBitRanges := func(bits uint64, base uint) []BitRange {
+		var ranges []BitRange
+		start, size := uint(0), uint(0)
+		for i := 0; i < 64; i++ {
+			if bits&(1<<i) != 0 {
+				if size == 0 {
+					start = uint(i) + base
+				}
+				size++
+			} else {
+				if size != 0 {
+					ranges = append(ranges, BitRange{start, size})
+					size = 0
+				}
+			}
+		}
+		if size != 0 {
+			ranges = append(ranges, BitRange{start, size})
+		}
+		return ranges
+	}
+	runTest := func(t *testing.T, base uint, cache, scav uint64) {
+		// Set up the before state.
+		beforeAlloc := map[ChunkIdx][]BitRange{
+			BaseChunkIdx: {{base, 64}},
+		}
+		beforeScav := map[ChunkIdx][]BitRange{
+			BaseChunkIdx: {},
+		}
+		b := NewPageAlloc(beforeAlloc, beforeScav)
+		defer FreePageAlloc(b)
+
+		// Create and flush the cache.
+		c := NewPageCache(PageBase(BaseChunkIdx, base), cache, scav)
+		c.Flush(b)
+		if !c.Empty() {
+			t.Errorf("pageCache flush did not clear cache")
+		}
+
+		// Set up the expected after state.
+		afterAlloc := map[ChunkIdx][]BitRange{
+			BaseChunkIdx: bits64ToBitRanges(^cache, base),
+		}
+		afterScav := map[ChunkIdx][]BitRange{
+			BaseChunkIdx: bits64ToBitRanges(scav, base),
+		}
+		want := NewPageAlloc(afterAlloc, afterScav)
+		defer FreePageAlloc(want)
+
+		// Check to see if it worked.
+		checkPageAlloc(t, want, b)
+	}
+
+	// Empty.
+	runTest(t, 0, 0, 0)
+
+	// Full.
+	runTest(t, 0, ^uint64(0), ^uint64(0))
+
+	// Random.
+	for i := 0; i < 100; i++ {
+		// Generate random valid base within a chunk.
+		base := uint(rand.Intn(PallocChunkPages/64)) * 64
+
+		// Generate random cache.
+		cache := rand.Uint64()
+		scav := rand.Uint64() & cache
+
+		// Run the test.
+		runTest(t, base, cache, scav)
+	}
+}
+
+func TestPageAllocAllocToCache(t *testing.T) {
+	tests := map[string]struct {
+		before map[ChunkIdx][]BitRange
+		scav   map[ChunkIdx][]BitRange
+		hits   []PageCache // expected base addresses and patterns
+		after  map[ChunkIdx][]BitRange
+	}{
+		"AllFree": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{1, 1}, {64, 64}},
+			},
+			hits: []PageCache{
+				NewPageCache(PageBase(BaseChunkIdx, 0), ^uint64(0), 0x2),
+				NewPageCache(PageBase(BaseChunkIdx, 64), ^uint64(0), ^uint64(0)),
+				NewPageCache(PageBase(BaseChunkIdx, 128), ^uint64(0), 0),
+				NewPageCache(PageBase(BaseChunkIdx, 192), ^uint64(0), 0),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 256}},
+			},
+		},
+		"ManyArena": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages - 64}},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {},
+			},
+			hits: []PageCache{
+				NewPageCache(PageBase(BaseChunkIdx+2, PallocChunkPages-64), ^uint64(0), 0),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:     {{0, PallocChunkPages}},
+				BaseChunkIdx + 1: {{0, PallocChunkPages}},
+				BaseChunkIdx + 2: {{0, PallocChunkPages}},
+			},
+		},
+		"NotContiguous": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:        {{0, PallocChunkPages}},
+				BaseChunkIdx + 0xff: {{0, 0}},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:        {{0, PallocChunkPages}},
+				BaseChunkIdx + 0xff: {{31, 67}},
+			},
+			hits: []PageCache{
+				NewPageCache(PageBase(BaseChunkIdx+0xff, 0), ^uint64(0), ((uint64(1)<<33)-1)<<31),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx:        {{0, PallocChunkPages}},
+				BaseChunkIdx + 0xff: {{0, 64}},
+			},
+		},
+		"First": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 32}, {33, 31}, {96, 32}},
+			},
+			scav: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{1, 4}, {31, 5}, {66, 2}},
+			},
+			hits: []PageCache{
+				NewPageCache(PageBase(BaseChunkIdx, 0), 1<<32, 1<<32),
+				NewPageCache(PageBase(BaseChunkIdx, 64), (uint64(1)<<32)-1, 0x3<<2),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, 128}},
+			},
+		},
+		"Fail": {
+			before: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+			hits: []PageCache{
+				NewPageCache(0, 0, 0),
+				NewPageCache(0, 0, 0),
+				NewPageCache(0, 0, 0),
+			},
+			after: map[ChunkIdx][]BitRange{
+				BaseChunkIdx: {{0, PallocChunkPages}},
+			},
+		},
+	}
+	for name, v := range tests {
+		v := v
+		t.Run(name, func(t *testing.T) {
+			b := NewPageAlloc(v.before, v.scav)
+			defer FreePageAlloc(b)
+
+			for _, expect := range v.hits {
+				checkPageCache(t, b.AllocToCache(), expect)
+				if t.Failed() {
+					return
+				}
+			}
+			want := NewPageAlloc(v.after, v.scav)
+			defer FreePageAlloc(want)
+
+			checkPageAlloc(t, want, b)
+		})
+	}
+}
diff --git a/libgo/go/runtime/mpallocbits.go b/libgo/go/runtime/mpallocbits.go
new file mode 100644
index 0000000..9d01ff8
--- /dev/null
+++ b/libgo/go/runtime/mpallocbits.go
@@ -0,0 +1,394 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import (
+	"runtime/internal/sys"
+)
+
+// pageBits is a bitmap representing one bit per page in a palloc chunk.
+type pageBits [pallocChunkPages / 64]uint64
+
+// get returns the value of the i'th bit in the bitmap.
+func (b *pageBits) get(i uint) uint {
+	return uint((b[i/64] >> (i % 64)) & 1)
+}
+
+// block64 returns the 64-bit aligned block of bits containing the i'th bit.
+func (b *pageBits) block64(i uint) uint64 {
+	return b[i/64]
+}
+
+// set sets bit i of pageBits.
+func (b *pageBits) set(i uint) {
+	b[i/64] |= 1 << (i % 64)
+}
+
+// setRange sets bits in the range [i, i+n).
+func (b *pageBits) setRange(i, n uint) {
+	_ = b[i/64]
+	if n == 1 {
+		// Fast path for the n == 1 case.
+		b.set(i)
+		return
+	}
+	// Set bits [i, j].
+	j := i + n - 1
+	if i/64 == j/64 {
+		b[i/64] |= ((uint64(1) << n) - 1) << (i % 64)
+		return
+	}
+	_ = b[j/64]
+	// Set leading bits.
+	b[i/64] |= ^uint64(0) << (i % 64)
+	for k := i/64 + 1; k < j/64; k++ {
+		b[k] = ^uint64(0)
+	}
+	// Set trailing bits.
+	b[j/64] |= (uint64(1) << (j%64 + 1)) - 1
+}
+
+// setAll sets all the bits of b.
+func (b *pageBits) setAll() {
+	for i := range b {
+		b[i] = ^uint64(0)
+	}
+}
+
+// clear clears bit i of pageBits.
+func (b *pageBits) clear(i uint) {
+	b[i/64] &^= 1 << (i % 64)
+}
+
+// clearRange clears bits in the range [i, i+n).
+func (b *pageBits) clearRange(i, n uint) {
+	_ = b[i/64]
+	if n == 1 {
+		// Fast path for the n == 1 case.
+		b.clear(i)
+		return
+	}
+	// Clear bits [i, j].
+	j := i + n - 1
+	if i/64 == j/64 {
+		b[i/64] &^= ((uint64(1) << n) - 1) << (i % 64)
+		return
+	}
+	_ = b[j/64]
+	// Clear leading bits.
+	b[i/64] &^= ^uint64(0) << (i % 64)
+	for k := i/64 + 1; k < j/64; k++ {
+		b[k] = 0
+	}
+	// Clear trailing bits.
+	b[j/64] &^= (uint64(1) << (j%64 + 1)) - 1
+}
+
+// clearAll frees all the bits of b.
+func (b *pageBits) clearAll() {
+	for i := range b {
+		b[i] = 0
+	}
+}
+
+// popcntRange counts the number of set bits in the
+// range [i, i+n).
+func (b *pageBits) popcntRange(i, n uint) (s uint) {
+	if n == 1 {
+		return uint((b[i/64] >> (i % 64)) & 1)
+	}
+	_ = b[i/64]
+	j := i + n - 1
+	if i/64 == j/64 {
+		return uint(sys.OnesCount64((b[i/64] >> (i % 64)) & ((1 << n) - 1)))
+	}
+	_ = b[j/64]
+	s += uint(sys.OnesCount64(b[i/64] >> (i % 64)))
+	for k := i/64 + 1; k < j/64; k++ {
+		s += uint(sys.OnesCount64(b[k]))
+	}
+	s += uint(sys.OnesCount64(b[j/64] & ((1 << (j%64 + 1)) - 1)))
+	return
+}
+
+// pallocBits is a bitmap that tracks page allocations for at most one
+// palloc chunk.
+//
+// The precise representation is an implementation detail, but for the
+// sake of documentation, 0s are free pages and 1s are allocated pages.
+type pallocBits pageBits
+
+// consec8tab is a table containing the number of consecutive
+// zero bits for any uint8 value.
+//
+// The table is generated by calling consec8(i) for each
+// possible uint8 value, which is defined as:
+//
+// // consec8 counts the maximum number of consecutive 0 bits
+// // in a uint8.
+// func consec8(n uint8) int {
+// 	n = ^n
+// 	i := 0
+// 	for n != 0 {
+// 		n &= (n << 1)
+// 		i++
+// 	}
+// 	return i
+// }
+var consec8tab = [256]uint{
+	8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
+	4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+	5, 4, 3, 3, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2,
+	4, 3, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2,
+	6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2,
+	4, 3, 2, 2, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 1,
+	5, 4, 3, 3, 2, 2, 2, 2, 3, 2, 1, 1, 2, 1, 1, 1,
+	4, 3, 2, 2, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 1,
+	7, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3,
+	4, 3, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2,
+	5, 4, 3, 3, 2, 2, 2, 2, 3, 2, 1, 1, 2, 1, 1, 1,
+	4, 3, 2, 2, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 1,
+	6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2,
+	4, 3, 2, 2, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 1,
+	5, 4, 3, 3, 2, 2, 2, 2, 3, 2, 1, 1, 2, 1, 1, 1,
+	4, 3, 2, 2, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 0,
+}
+
+// summarize returns a packed summary of the bitmap in pallocBits.
+func (b *pallocBits) summarize() pallocSum {
+	// TODO(mknyszek): There may be something more clever to be done
+	// here to make the summarize operation more efficient. For example,
+	// we can compute start and end with 64-bit wide operations easily,
+	// but max is a bit more complex. Perhaps there exists some way to
+	// leverage the 64-bit start and end to our advantage?
+	var start, max, end uint
+	for i := 0; i < len(b); i++ {
+		a := b[i]
+		for j := 0; j < 64; j += 8 {
+			k := uint8(a >> j)
+
+			// Compute start.
+			si := uint(sys.TrailingZeros8(k))
+			if start == uint(i*64+j) {
+				start += si
+			}
+
+			// Compute max.
+			if end+si > max {
+				max = end + si
+			}
+			if mi := consec8tab[k]; mi > max {
+				max = mi
+			}
+
+			// Compute end.
+			if k == 0 {
+				end += 8
+			} else {
+				end = uint(sys.LeadingZeros8(k))
+			}
+		}
+	}
+	return packPallocSum(start, max, end)
+}
+
+// find searches for npages contiguous free pages in pallocBits and returns
+// the index where that run starts, as well as the index of the first free page
+// it found in the search. searchIdx represents the first known free page and
+// where to begin the search from.
+//
+// If find fails to find any free space, it returns an index of ^uint(0) and
+// the new searchIdx should be ignored.
+//
+// The returned searchIdx is always the index of the first free page found
+// in this bitmap during the search, except if npages == 1, in which
+// case it will be the index just after the first free page, because the
+// index returned as the first result is assumed to be allocated and so
+// represents a minor optimization for that case.
+func (b *pallocBits) find(npages uintptr, searchIdx uint) (uint, uint) {
+	if npages == 1 {
+		addr := b.find1(searchIdx)
+		// Return a searchIdx of addr + 1 since we assume addr will be
+		// allocated.
+		return addr, addr + 1
+	} else if npages <= 64 {
+		return b.findSmallN(npages, searchIdx)
+	}
+	return b.findLargeN(npages, searchIdx)
+}
+
+// find1 is a helper for find which searches for a single free page
+// in the pallocBits and returns the index.
+//
+// See find for an explanation of the searchIdx parameter.
+func (b *pallocBits) find1(searchIdx uint) uint {
+	for i := searchIdx / 64; i < uint(len(b)); i++ {
+		x := b[i]
+		if x == ^uint64(0) {
+			continue
+		}
+		return i*64 + uint(sys.TrailingZeros64(^x))
+	}
+	return ^uint(0)
+}
+
+// findSmallN is a helper for find which searches for npages contiguous free pages
+// in this pallocBits and returns the index where that run of contiguous pages
+// starts as well as the index of the first free page it finds in its search.
+//
+// See find for an explanation of the searchIdx parameter.
+//
+// Returns a ^uint(0) index on failure and the new searchIdx should be ignored.
+//
+// findSmallN assumes npages <= 64, where any such contiguous run of pages
+// crosses at most one aligned 64-bit boundary in the bits.
+func (b *pallocBits) findSmallN(npages uintptr, searchIdx uint) (uint, uint) {
+	end, newSearchIdx := uint(0), ^uint(0)
+	for i := searchIdx / 64; i < uint(len(b)); i++ {
+		bi := b[i]
+		if bi == ^uint64(0) {
+			end = 0
+			continue
+		}
+		// First see if we can pack our allocation in the trailing
+		// zeros plus the end of the last 64 bits.
+		start := uint(sys.TrailingZeros64(bi))
+		if newSearchIdx == ^uint(0) {
+			// The new searchIdx is going to be at these 64 bits after any
+			// 1s we file, so count trailing 1s.
+			newSearchIdx = i*64 + uint(sys.TrailingZeros64(^bi))
+		}
+		if end+start >= uint(npages) {
+			return i*64 - end, newSearchIdx
+		}
+		// Next, check the interior of the 64-bit chunk.
+		j := findBitRange64(^bi, uint(npages))
+		if j < 64 {
+			return i*64 + j, newSearchIdx
+		}
+		end = uint(sys.LeadingZeros64(bi))
+	}
+	return ^uint(0), newSearchIdx
+}
+
+// findLargeN is a helper for find which searches for npages contiguous free pages
+// in this pallocBits and returns the index where that run starts, as well as the
+// index of the first free page it found it its search.
+//
+// See alloc for an explanation of the searchIdx parameter.
+//
+// Returns a ^uint(0) index on failure and the new searchIdx should be ignored.
+//
+// findLargeN assumes npages > 64, where any such run of free pages
+// crosses at least one aligned 64-bit boundary in the bits.
+func (b *pallocBits) findLargeN(npages uintptr, searchIdx uint) (uint, uint) {
+	start, size, newSearchIdx := ^uint(0), uint(0), ^uint(0)
+	for i := searchIdx / 64; i < uint(len(b)); i++ {
+		x := b[i]
+		if x == ^uint64(0) {
+			size = 0
+			continue
+		}
+		if newSearchIdx == ^uint(0) {
+			// The new searchIdx is going to be at these 64 bits after any
+			// 1s we file, so count trailing 1s.
+			newSearchIdx = i*64 + uint(sys.TrailingZeros64(^x))
+		}
+		if size == 0 {
+			size = uint(sys.LeadingZeros64(x))
+			start = i*64 + 64 - size
+			continue
+		}
+		s := uint(sys.TrailingZeros64(x))
+		if s+size >= uint(npages) {
+			size += s
+			return start, newSearchIdx
+		}
+		if s < 64 {
+			size = uint(sys.LeadingZeros64(x))
+			start = i*64 + 64 - size
+			continue
+		}
+		size += 64
+	}
+	if size < uint(npages) {
+		return ^uint(0), newSearchIdx
+	}
+	return start, newSearchIdx
+}
+
+// allocRange allocates the range [i, i+n).
+func (b *pallocBits) allocRange(i, n uint) {
+	(*pageBits)(b).setRange(i, n)
+}
+
+// allocAll allocates all the bits of b.
+func (b *pallocBits) allocAll() {
+	(*pageBits)(b).setAll()
+}
+
+// free1 frees a single page in the pallocBits at i.
+func (b *pallocBits) free1(i uint) {
+	(*pageBits)(b).clear(i)
+}
+
+// free frees the range [i, i+n) of pages in the pallocBits.
+func (b *pallocBits) free(i, n uint) {
+	(*pageBits)(b).clearRange(i, n)
+}
+
+// freeAll frees all the bits of b.
+func (b *pallocBits) freeAll() {
+	(*pageBits)(b).clearAll()
+}
+
+// pages64 returns a 64-bit bitmap representing a block of 64 pages aligned
+// to 64 pages. The returned block of pages is the one containing the i'th
+// page in this pallocBits. Each bit represents whether the page is in-use.
+func (b *pallocBits) pages64(i uint) uint64 {
+	return (*pageBits)(b).block64(i)
+}
+
+// findBitRange64 returns the bit index of the first set of
+// n consecutive 1 bits. If no consecutive set of 1 bits of
+// size n may be found in c, then it returns an integer >= 64.
+func findBitRange64(c uint64, n uint) uint {
+	i := uint(0)
+	cont := uint(sys.TrailingZeros64(^c))
+	for cont < n && i < 64 {
+		i += cont
+		i += uint(sys.TrailingZeros64(c >> i))
+		cont = uint(sys.TrailingZeros64(^(c >> i)))
+	}
+	return i
+}
+
+// pallocData encapsulates pallocBits and a bitmap for
+// whether or not a given page is scavenged in a single
+// structure. It's effectively a pallocBits with
+// additional functionality.
+//
+// Update the comment on (*pageAlloc).chunks should this
+// structure change.
+type pallocData struct {
+	pallocBits
+	scavenged pageBits
+}
+
+// allocRange sets bits [i, i+n) in the bitmap to 1 and
+// updates the scavenged bits appropriately.
+func (m *pallocData) allocRange(i, n uint) {
+	// Clear the scavenged bits when we alloc the range.
+	m.pallocBits.allocRange(i, n)
+	m.scavenged.clearRange(i, n)
+}
+
+// allocAll sets every bit in the bitmap to 1 and updates
+// the scavenged bits appropriately.
+func (m *pallocData) allocAll() {
+	// Clear the scavenged bits when we alloc the range.
+	m.pallocBits.allocAll()
+	m.scavenged.clearAll()
+}
diff --git a/libgo/go/runtime/mpallocbits_test.go b/libgo/go/runtime/mpallocbits_test.go
new file mode 100644
index 0000000..71a29f3
--- /dev/null
+++ b/libgo/go/runtime/mpallocbits_test.go
@@ -0,0 +1,510 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime_test
+
+import (
+	"fmt"
+	"math/rand"
+	. "runtime"
+	"testing"
+)
+
+// Ensures that got and want are the same, and if not, reports
+// detailed diff information.
+func checkPallocBits(t *testing.T, got, want *PallocBits) bool {
+	d := DiffPallocBits(got, want)
+	if len(d) != 0 {
+		t.Errorf("%d range(s) different", len(d))
+		for _, bits := range d {
+			t.Logf("\t@ bit index %d", bits.I)
+			t.Logf("\t|  got: %s", StringifyPallocBits(got, bits))
+			t.Logf("\t| want: %s", StringifyPallocBits(want, bits))
+		}
+		return false
+	}
+	return true
+}
+
+// makePallocBits produces an initialized PallocBits by setting
+// the ranges in s to 1 and the rest to zero.
+func makePallocBits(s []BitRange) *PallocBits {
+	b := new(PallocBits)
+	for _, v := range s {
+		b.AllocRange(v.I, v.N)
+	}
+	return b
+}
+
+// Ensures that PallocBits.AllocRange works, which is a fundamental
+// method used for testing and initialization since it's used by
+// makePallocBits.
+func TestPallocBitsAllocRange(t *testing.T) {
+	test := func(t *testing.T, i, n uint, want *PallocBits) {
+		checkPallocBits(t, makePallocBits([]BitRange{{i, n}}), want)
+	}
+	t.Run("OneLow", func(t *testing.T) {
+		want := new(PallocBits)
+		want[0] = 0x1
+		test(t, 0, 1, want)
+	})
+	t.Run("OneHigh", func(t *testing.T) {
+		want := new(PallocBits)
+		want[PallocChunkPages/64-1] = 1 << 63
+		test(t, PallocChunkPages-1, 1, want)
+	})
+	t.Run("Inner", func(t *testing.T) {
+		want := new(PallocBits)
+		want[2] = 0x3e
+		test(t, 129, 5, want)
+	})
+	t.Run("Aligned", func(t *testing.T) {
+		want := new(PallocBits)
+		want[2] = ^uint64(0)
+		want[3] = ^uint64(0)
+		test(t, 128, 128, want)
+	})
+	t.Run("Begin", func(t *testing.T) {
+		want := new(PallocBits)
+		want[0] = ^uint64(0)
+		want[1] = ^uint64(0)
+		want[2] = ^uint64(0)
+		want[3] = ^uint64(0)
+		want[4] = ^uint64(0)
+		want[5] = 0x1
+		test(t, 0, 321, want)
+	})
+	t.Run("End", func(t *testing.T) {
+		want := new(PallocBits)
+		want[PallocChunkPages/64-1] = ^uint64(0)
+		want[PallocChunkPages/64-2] = ^uint64(0)
+		want[PallocChunkPages/64-3] = ^uint64(0)
+		want[PallocChunkPages/64-4] = 1 << 63
+		test(t, PallocChunkPages-(64*3+1), 64*3+1, want)
+	})
+	t.Run("All", func(t *testing.T) {
+		want := new(PallocBits)
+		for i := range want {
+			want[i] = ^uint64(0)
+		}
+		test(t, 0, PallocChunkPages, want)
+	})
+}
+
+// Inverts every bit in the PallocBits.
+func invertPallocBits(b *PallocBits) {
+	for i := range b {
+		b[i] = ^b[i]
+	}
+}
+
+// Ensures two packed summaries are identical, and reports a detailed description
+// of the difference if they're not.
+func checkPallocSum(t *testing.T, got, want PallocSum) {
+	if got.Start() != want.Start() {
+		t.Errorf("inconsistent start: got %d, want %d", got.Start(), want.Start())
+	}
+	if got.Max() != want.Max() {
+		t.Errorf("inconsistent max: got %d, want %d", got.Max(), want.Max())
+	}
+	if got.End() != want.End() {
+		t.Errorf("inconsistent end: got %d, want %d", got.End(), want.End())
+	}
+}
+
+func TestMallocBitsPopcntRange(t *testing.T) {
+	type test struct {
+		i, n uint // bit range to popcnt over.
+		want uint // expected popcnt result on that range.
+	}
+	tests := map[string]struct {
+		init  []BitRange // bit ranges to set to 1 in the bitmap.
+		tests []test     // a set of popcnt tests to run over the bitmap.
+	}{
+		"None": {
+			tests: []test{
+				{0, 1, 0},
+				{5, 3, 0},
+				{2, 11, 0},
+				{PallocChunkPages/4 + 1, PallocChunkPages / 2, 0},
+				{0, PallocChunkPages, 0},
+			},
+		},
+		"All": {
+			init: []BitRange{{0, PallocChunkPages}},
+			tests: []test{
+				{0, 1, 1},
+				{5, 3, 3},
+				{2, 11, 11},
+				{PallocChunkPages/4 + 1, PallocChunkPages / 2, PallocChunkPages / 2},
+				{0, PallocChunkPages, PallocChunkPages},
+			},
+		},
+		"Half": {
+			init: []BitRange{{PallocChunkPages / 2, PallocChunkPages / 2}},
+			tests: []test{
+				{0, 1, 0},
+				{5, 3, 0},
+				{2, 11, 0},
+				{PallocChunkPages/2 - 1, 1, 0},
+				{PallocChunkPages / 2, 1, 1},
+				{PallocChunkPages/2 + 10, 1, 1},
+				{PallocChunkPages/2 - 1, 2, 1},
+				{PallocChunkPages / 4, PallocChunkPages / 4, 0},
+				{PallocChunkPages / 4, PallocChunkPages/4 + 1, 1},
+				{PallocChunkPages/4 + 1, PallocChunkPages / 2, PallocChunkPages/4 + 1},
+				{0, PallocChunkPages, PallocChunkPages / 2},
+			},
+		},
+		"OddBound": {
+			init: []BitRange{{0, 111}},
+			tests: []test{
+				{0, 1, 1},
+				{5, 3, 3},
+				{2, 11, 11},
+				{110, 2, 1},
+				{99, 50, 12},
+				{110, 1, 1},
+				{111, 1, 0},
+				{99, 1, 1},
+				{120, 1, 0},
+				{PallocChunkPages / 2, PallocChunkPages / 2, 0},
+				{0, PallocChunkPages, 111},
+			},
+		},
+		"Scattered": {
+			init: []BitRange{
+				{1, 3}, {5, 1}, {7, 1}, {10, 2}, {13, 1}, {15, 4},
+				{21, 1}, {23, 1}, {26, 2}, {30, 5}, {36, 2}, {40, 3},
+				{44, 6}, {51, 1}, {53, 2}, {58, 3}, {63, 1}, {67, 2},
+				{71, 10}, {84, 1}, {89, 7}, {99, 2}, {103, 1}, {107, 2},
+				{111, 1}, {113, 1}, {115, 1}, {118, 1}, {120, 2}, {125, 5},
+			},
+			tests: []test{
+				{0, 11, 6},
+				{0, 64, 39},
+				{13, 64, 40},
+				{64, 64, 34},
+				{0, 128, 73},
+				{1, 128, 74},
+				{0, PallocChunkPages, 75},
+			},
+		},
+	}
+	for name, v := range tests {
+		v := v
+		t.Run(name, func(t *testing.T) {
+			b := makePallocBits(v.init)
+			for _, h := range v.tests {
+				if got := b.PopcntRange(h.i, h.n); got != h.want {
+					t.Errorf("bad popcnt (i=%d, n=%d): got %d, want %d", h.i, h.n, got, h.want)
+				}
+			}
+		})
+	}
+}
+
+// Ensures computing bit summaries works as expected by generating random
+// bitmaps and checking against a reference implementation.
+func TestPallocBitsSummarizeRandom(t *testing.T) {
+	b := new(PallocBits)
+	for i := 0; i < 1000; i++ {
+		// Randomize bitmap.
+		for i := range b {
+			b[i] = rand.Uint64()
+		}
+		// Check summary against reference implementation.
+		checkPallocSum(t, b.Summarize(), SummarizeSlow(b))
+	}
+}
+
+// Ensures computing bit summaries works as expected.
+func TestPallocBitsSummarize(t *testing.T) {
+	var emptySum = PackPallocSum(PallocChunkPages, PallocChunkPages, PallocChunkPages)
+	type test struct {
+		free []BitRange // Ranges of free (zero) bits.
+		hits []PallocSum
+	}
+	tests := make(map[string]test)
+	tests["NoneFree"] = test{
+		free: []BitRange{},
+		hits: []PallocSum{
+			PackPallocSum(0, 0, 0),
+		},
+	}
+	tests["OnlyStart"] = test{
+		free: []BitRange{{0, 10}},
+		hits: []PallocSum{
+			PackPallocSum(10, 10, 0),
+		},
+	}
+	tests["OnlyEnd"] = test{
+		free: []BitRange{{PallocChunkPages - 40, 40}},
+		hits: []PallocSum{
+			PackPallocSum(0, 40, 40),
+		},
+	}
+	tests["StartAndEnd"] = test{
+		free: []BitRange{{0, 11}, {PallocChunkPages - 23, 23}},
+		hits: []PallocSum{
+			PackPallocSum(11, 23, 23),
+		},
+	}
+	tests["StartMaxEnd"] = test{
+		free: []BitRange{{0, 4}, {50, 100}, {PallocChunkPages - 4, 4}},
+		hits: []PallocSum{
+			PackPallocSum(4, 100, 4),
+		},
+	}
+	tests["OnlyMax"] = test{
+		free: []BitRange{{1, 20}, {35, 241}, {PallocChunkPages - 50, 30}},
+		hits: []PallocSum{
+			PackPallocSum(0, 241, 0),
+		},
+	}
+	tests["MultiMax"] = test{
+		free: []BitRange{{35, 2}, {40, 5}, {100, 5}},
+		hits: []PallocSum{
+			PackPallocSum(0, 5, 0),
+		},
+	}
+	tests["One"] = test{
+		free: []BitRange{{2, 1}},
+		hits: []PallocSum{
+			PackPallocSum(0, 1, 0),
+		},
+	}
+	tests["AllFree"] = test{
+		free: []BitRange{{0, PallocChunkPages}},
+		hits: []PallocSum{
+			emptySum,
+		},
+	}
+	for name, v := range tests {
+		v := v
+		t.Run(name, func(t *testing.T) {
+			b := makePallocBits(v.free)
+			// In the PallocBits we create 1's represent free spots, but in our actual
+			// PallocBits 1 means not free, so invert.
+			invertPallocBits(b)
+			for _, h := range v.hits {
+				checkPallocSum(t, b.Summarize(), h)
+			}
+		})
+	}
+}
+
+// Benchmarks how quickly we can summarize a PallocBits.
+func BenchmarkPallocBitsSummarize(b *testing.B) {
+	buf0 := new(PallocBits)
+	buf1 := new(PallocBits)
+	for i := 0; i < len(buf1); i++ {
+		buf1[i] = ^uint64(0)
+	}
+	bufa := new(PallocBits)
+	for i := 0; i < len(bufa); i++ {
+		bufa[i] = 0xaa
+	}
+	for _, buf := range []*PallocBits{buf0, buf1, bufa} {
+		b.Run(fmt.Sprintf("Unpacked%02X", buf[0]), func(b *testing.B) {
+			for i := 0; i < b.N; i++ {
+				buf.Summarize()
+			}
+		})
+	}
+}
+
+// Ensures page allocation works.
+func TestPallocBitsAlloc(t *testing.T) {
+	tests := map[string]struct {
+		before []BitRange
+		after  []BitRange
+		npages uintptr
+		hits   []uint
+	}{
+		"AllFree1": {
+			npages: 1,
+			hits:   []uint{0, 1, 2, 3, 4, 5},
+			after:  []BitRange{{0, 6}},
+		},
+		"AllFree2": {
+			npages: 2,
+			hits:   []uint{0, 2, 4, 6, 8, 10},
+			after:  []BitRange{{0, 12}},
+		},
+		"AllFree5": {
+			npages: 5,
+			hits:   []uint{0, 5, 10, 15, 20},
+			after:  []BitRange{{0, 25}},
+		},
+		"AllFree64": {
+			npages: 64,
+			hits:   []uint{0, 64, 128},
+			after:  []BitRange{{0, 192}},
+		},
+		"AllFree65": {
+			npages: 65,
+			hits:   []uint{0, 65, 130},
+			after:  []BitRange{{0, 195}},
+		},
+		"SomeFree64": {
+			before: []BitRange{{0, 32}, {64, 32}, {100, PallocChunkPages - 100}},
+			npages: 64,
+			hits:   []uint{^uint(0)},
+			after:  []BitRange{{0, 32}, {64, 32}, {100, PallocChunkPages - 100}},
+		},
+		"NoneFree1": {
+			before: []BitRange{{0, PallocChunkPages}},
+			npages: 1,
+			hits:   []uint{^uint(0), ^uint(0)},
+			after:  []BitRange{{0, PallocChunkPages}},
+		},
+		"NoneFree2": {
+			before: []BitRange{{0, PallocChunkPages}},
+			npages: 2,
+			hits:   []uint{^uint(0), ^uint(0)},
+			after:  []BitRange{{0, PallocChunkPages}},
+		},
+		"NoneFree5": {
+			before: []BitRange{{0, PallocChunkPages}},
+			npages: 5,
+			hits:   []uint{^uint(0), ^uint(0)},
+			after:  []BitRange{{0, PallocChunkPages}},
+		},
+		"NoneFree65": {
+			before: []BitRange{{0, PallocChunkPages}},
+			npages: 65,
+			hits:   []uint{^uint(0), ^uint(0)},
+			after:  []BitRange{{0, PallocChunkPages}},
+		},
+		"ExactFit1": {
+			before: []BitRange{{0, PallocChunkPages/2 - 3}, {PallocChunkPages/2 - 2, PallocChunkPages/2 + 2}},
+			npages: 1,
+			hits:   []uint{PallocChunkPages/2 - 3, ^uint(0)},
+			after:  []BitRange{{0, PallocChunkPages}},
+		},
+		"ExactFit2": {
+			before: []BitRange{{0, PallocChunkPages/2 - 3}, {PallocChunkPages/2 - 1, PallocChunkPages/2 + 1}},
+			npages: 2,
+			hits:   []uint{PallocChunkPages/2 - 3, ^uint(0)},
+			after:  []BitRange{{0, PallocChunkPages}},
+		},
+		"ExactFit5": {
+			before: []BitRange{{0, PallocChunkPages/2 - 3}, {PallocChunkPages/2 + 2, PallocChunkPages/2 - 2}},
+			npages: 5,
+			hits:   []uint{PallocChunkPages/2 - 3, ^uint(0)},
+			after:  []BitRange{{0, PallocChunkPages}},
+		},
+		"ExactFit65": {
+			before: []BitRange{{0, PallocChunkPages/2 - 31}, {PallocChunkPages/2 + 34, PallocChunkPages/2 - 34}},
+			npages: 65,
+			hits:   []uint{PallocChunkPages/2 - 31, ^uint(0)},
+			after:  []BitRange{{0, PallocChunkPages}},
+		},
+		"SomeFree161": {
+			before: []BitRange{{0, 185}, {331, 1}},
+			npages: 161,
+			hits:   []uint{332},
+			after:  []BitRange{{0, 185}, {331, 162}},
+		},
+	}
+	for name, v := range tests {
+		v := v
+		t.Run(name, func(t *testing.T) {
+			b := makePallocBits(v.before)
+			for iter, i := range v.hits {
+				a, _ := b.Find(v.npages, 0)
+				if i != a {
+					t.Fatalf("find #%d picked wrong index: want %d, got %d", iter+1, i, a)
+				}
+				if i != ^uint(0) {
+					b.AllocRange(a, uint(v.npages))
+				}
+			}
+			want := makePallocBits(v.after)
+			checkPallocBits(t, b, want)
+		})
+	}
+}
+
+// Ensures page freeing works.
+func TestPallocBitsFree(t *testing.T) {
+	tests := map[string]struct {
+		beforeInv []BitRange
+		afterInv  []BitRange
+		frees     []uint
+		npages    uintptr
+	}{
+		"SomeFree": {
+			npages:    1,
+			beforeInv: []BitRange{{0, 32}, {64, 32}, {100, 1}},
+			frees:     []uint{32},
+			afterInv:  []BitRange{{0, 33}, {64, 32}, {100, 1}},
+		},
+		"NoneFree1": {
+			npages:   1,
+			frees:    []uint{0, 1, 2, 3, 4, 5},
+			afterInv: []BitRange{{0, 6}},
+		},
+		"NoneFree2": {
+			npages:   2,
+			frees:    []uint{0, 2, 4, 6, 8, 10},
+			afterInv: []BitRange{{0, 12}},
+		},
+		"NoneFree5": {
+			npages:   5,
+			frees:    []uint{0, 5, 10, 15, 20},
+			afterInv: []BitRange{{0, 25}},
+		},
+		"NoneFree64": {
+			npages:   64,
+			frees:    []uint{0, 64, 128},
+			afterInv: []BitRange{{0, 192}},
+		},
+		"NoneFree65": {
+			npages:   65,
+			frees:    []uint{0, 65, 130},
+			afterInv: []BitRange{{0, 195}},
+		},
+	}
+	for name, v := range tests {
+		v := v
+		t.Run(name, func(t *testing.T) {
+			b := makePallocBits(v.beforeInv)
+			invertPallocBits(b)
+			for _, i := range v.frees {
+				b.Free(i, uint(v.npages))
+			}
+			want := makePallocBits(v.afterInv)
+			invertPallocBits(want)
+			checkPallocBits(t, b, want)
+		})
+	}
+}
+
+func TestFindBitRange64(t *testing.T) {
+	check := func(x uint64, n uint, result uint) {
+		i := FindBitRange64(x, n)
+		if result == ^uint(0) && i < 64 {
+			t.Errorf("case (%016x, %d): got %d, want failure", x, n, i)
+		} else if result != ^uint(0) && i != result {
+			t.Errorf("case (%016x, %d): got %d, want %d", x, n, i, result)
+		}
+	}
+	for i := uint(0); i <= 64; i++ {
+		check(^uint64(0), i, 0)
+	}
+	check(0, 0, 0)
+	for i := uint(1); i <= 64; i++ {
+		check(0, i, ^uint(0))
+	}
+	check(0x8000000000000000, 1, 63)
+	check(0xc000010001010000, 2, 62)
+	check(0xc000010001030000, 2, 16)
+	check(0xe000030001030000, 3, 61)
+	check(0xe000030001070000, 3, 16)
+	check(0xffff03ff01070000, 16, 48)
+	check(0xffff03ff0107ffff, 16, 0)
+	check(0x0fff03ff01079fff, 16, ^uint(0))
+}
diff --git a/libgo/go/runtime/mprof.go b/libgo/go/runtime/mprof.go
index 132c2ff..dd257d1 100644
--- a/libgo/go/runtime/mprof.go
+++ b/libgo/go/runtime/mprof.go
@@ -614,10 +614,20 @@
 	// Increase the skip count to take into account the frames corresponding
 	// to runtime.callersRaw and to the C routine that it invokes.
 	skip += 2
+	sawSigtramp := false
 	for _, pc := range stk {
 		// Subtract 1 from PC to undo the 1 we added in callback in
 		// go-callers.c.
-		function, file, _, frames := funcfileline(pc-1, -1)
+		function, file, _, frames := funcfileline(pc-1, -1, false)
+
+		// Skip an unnamed function above sigtramp, as it is
+		// likely the signal handler.
+		if sawSigtramp {
+			sawSigtramp = false
+			if function == "" {
+				continue
+			}
+		}
 
 		// Skip split-stack functions (match by function name)
 		skipFrame := false
@@ -630,11 +640,18 @@
 			skipFrame = true
 		}
 
-		// Skip thunks and recover functions.  There is no equivalent to
-		// these functions in the gc toolchain.
+		// Skip thunks and recover functions and other functions
+		// specific to gccgo, that do not appear in the gc toolchain.
 		fcn := function
 		if hasSuffix(fcn, "..r") {
 			skipFrame = true
+		} else if function == "runtime.deferreturn" || function == "runtime.sighandler" {
+			skipFrame = true
+		} else if function == "runtime.sigtramp" || function == "runtime.sigtrampgo" {
+			skipFrame = true
+			// Also skip subsequent unnamed functions,
+			// which will be the signal handler itself.
+			sawSigtramp = true
 		} else {
 			for fcn != "" && (fcn[len(fcn)-1] >= '0' && fcn[len(fcn)-1] <= '9') {
 				fcn = fcn[:len(fcn)-1]
diff --git a/libgo/go/runtime/mranges.go b/libgo/go/runtime/mranges.go
new file mode 100644
index 0000000..c14e5c7
--- /dev/null
+++ b/libgo/go/runtime/mranges.go
@@ -0,0 +1,147 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Address range data structure.
+//
+// This file contains an implementation of a data structure which
+// manages ordered address ranges.
+
+package runtime
+
+import (
+	"runtime/internal/sys"
+	"unsafe"
+)
+
+// addrRange represents a region of address space.
+type addrRange struct {
+	// base and limit together represent the region of address space
+	// [base, limit). That is, base is inclusive, limit is exclusive.
+	base, limit uintptr
+}
+
+// size returns the size of the range represented in bytes.
+func (a addrRange) size() uintptr {
+	if a.limit <= a.base {
+		return 0
+	}
+	return a.limit - a.base
+}
+
+// subtract takes the addrRange toPrune and cuts out any overlap with
+// from, then returns the new range. subtract assumes that a and b
+// either don't overlap at all, only overlap on one side, or are equal.
+// If b is strictly contained in a, thus forcing a split, it will throw.
+func (a addrRange) subtract(b addrRange) addrRange {
+	if a.base >= b.base && a.limit <= b.limit {
+		return addrRange{}
+	} else if a.base < b.base && a.limit > b.limit {
+		throw("bad prune")
+	} else if a.limit > b.limit && a.base < b.limit {
+		a.base = b.limit
+	} else if a.base < b.base && a.limit > b.base {
+		a.limit = b.base
+	}
+	return a
+}
+
+// addrRanges is a data structure holding a collection of ranges of
+// address space.
+//
+// The ranges are coalesced eagerly to reduce the
+// number ranges it holds.
+//
+// The slice backing store for this field is persistentalloc'd
+// and thus there is no way to free it.
+//
+// addrRanges is not thread-safe.
+type addrRanges struct {
+	// ranges is a slice of ranges sorted by base.
+	ranges []addrRange
+
+	// sysStat is the stat to track allocations by this type
+	sysStat *uint64
+}
+
+func (a *addrRanges) init(sysStat *uint64) {
+	ranges := (*notInHeapSlice)(unsafe.Pointer(&a.ranges))
+	ranges.len = 0
+	ranges.cap = 16
+	ranges.array = (*notInHeap)(persistentalloc(unsafe.Sizeof(addrRange{})*uintptr(ranges.cap), sys.PtrSize, sysStat))
+	a.sysStat = sysStat
+}
+
+// findSucc returns the first index in a such that base is
+// less than the base of the addrRange at that index.
+func (a *addrRanges) findSucc(base uintptr) int {
+	// TODO(mknyszek): Consider a binary search for large arrays.
+	// While iterating over these ranges is potentially expensive,
+	// the expected number of ranges is small, ideally just 1,
+	// since Go heaps are usually mostly contiguous.
+	for i := range a.ranges {
+		if base < a.ranges[i].base {
+			return i
+		}
+	}
+	return len(a.ranges)
+}
+
+// add inserts a new address range to a.
+//
+// r must not overlap with any address range in a.
+func (a *addrRanges) add(r addrRange) {
+	// The copies in this function are potentially expensive, but this data
+	// structure is meant to represent the Go heap. At worst, copying this
+	// would take ~160µs assuming a conservative copying rate of 25 GiB/s (the
+	// copy will almost never trigger a page fault) for a 1 TiB heap with 4 MiB
+	// arenas which is completely discontiguous. ~160µs is still a lot, but in
+	// practice most platforms have 64 MiB arenas (which cuts this by a factor
+	// of 16) and Go heaps are usually mostly contiguous, so the chance that
+	// an addrRanges even grows to that size is extremely low.
+
+	// Because we assume r is not currently represented in a,
+	// findSucc gives us our insertion index.
+	i := a.findSucc(r.base)
+	coalescesDown := i > 0 && a.ranges[i-1].limit == r.base
+	coalescesUp := i < len(a.ranges) && r.limit == a.ranges[i].base
+	if coalescesUp && coalescesDown {
+		// We have neighbors and they both border us.
+		// Merge a.ranges[i-1], r, and a.ranges[i] together into a.ranges[i-1].
+		a.ranges[i-1].limit = a.ranges[i].limit
+
+		// Delete a.ranges[i].
+		copy(a.ranges[i:], a.ranges[i+1:])
+		a.ranges = a.ranges[:len(a.ranges)-1]
+	} else if coalescesDown {
+		// We have a neighbor at a lower address only and it borders us.
+		// Merge the new space into a.ranges[i-1].
+		a.ranges[i-1].limit = r.limit
+	} else if coalescesUp {
+		// We have a neighbor at a higher address only and it borders us.
+		// Merge the new space into a.ranges[i].
+		a.ranges[i].base = r.base
+	} else {
+		// We may or may not have neighbors which don't border us.
+		// Add the new range.
+		if len(a.ranges)+1 > cap(a.ranges) {
+			// Grow the array. Note that this leaks the old array, but since
+			// we're doubling we have at most 2x waste. For a 1 TiB heap and
+			// 4 MiB arenas which are all discontiguous (both very conservative
+			// assumptions), this would waste at most 4 MiB of memory.
+			oldRanges := a.ranges
+			ranges := (*notInHeapSlice)(unsafe.Pointer(&a.ranges))
+			ranges.len = len(oldRanges) + 1
+			ranges.cap = cap(oldRanges) * 2
+			ranges.array = (*notInHeap)(persistentalloc(unsafe.Sizeof(addrRange{})*uintptr(ranges.cap), sys.PtrSize, a.sysStat))
+
+			// Copy in the old array, but make space for the new range.
+			copy(a.ranges[:i], oldRanges[:i])
+			copy(a.ranges[i+1:], oldRanges[i:])
+		} else {
+			a.ranges = a.ranges[:len(a.ranges)+1]
+			copy(a.ranges[i+1:], a.ranges[i:])
+		}
+		a.ranges[i] = r
+	}
+}
diff --git a/libgo/go/runtime/msize.go b/libgo/go/runtime/msize.go
index 0accb83..11d06ce 100644
--- a/libgo/go/runtime/msize.go
+++ b/libgo/go/runtime/msize.go
@@ -21,5 +21,5 @@
 	if size+_PageSize < size {
 		return size
 	}
-	return round(size, _PageSize)
+	return alignUp(size, _PageSize)
 }
diff --git a/libgo/go/runtime/mstats.go b/libgo/go/runtime/mstats.go
index cdab2ca..2d4cdbe 100644
--- a/libgo/go/runtime/mstats.go
+++ b/libgo/go/runtime/mstats.go
@@ -31,7 +31,7 @@
 	nfree       uint64 // number of frees
 
 	// Statistics about malloc heap.
-	// Protected by mheap.lock
+	// Updated atomically, or with the world stopped.
 	//
 	// Like MemStats, heap_sys and heap_inuse do not count memory
 	// in manually-managed spans.
@@ -40,19 +40,22 @@
 	heap_idle     uint64 // bytes in idle spans
 	heap_inuse    uint64 // bytes in mSpanInUse spans
 	heap_released uint64 // bytes released to the os
-	heap_objects  uint64 // total number of allocated objects
+
+	// heap_objects is not used by the runtime directly and instead
+	// computed on the fly by updatememstats.
+	heap_objects uint64 // total number of allocated objects
 
 	// Statistics about allocation of low-level fixed-size structures.
 	// Protected by FixAlloc locks.
-	stacks_inuse uint64 // bytes in manually-managed stack spans
+	stacks_inuse uint64 // bytes in manually-managed stack spans; updated atomically or during STW
 	stacks_sys   uint64 // only counts newosproc0 stack in mstats; differs from MemStats.StackSys
 	mspan_inuse  uint64 // mspan structures
 	mspan_sys    uint64
 	mcache_inuse uint64 // mcache structures
 	mcache_sys   uint64
 	buckhash_sys uint64 // profiling bucket hash table
-	gc_sys       uint64
-	other_sys    uint64
+	gc_sys       uint64 // updated atomically or during STW
+	other_sys    uint64 // updated atomically or during STW
 
 	// Statistics about garbage collector.
 	// Protected by mheap or stopping the world during GC.
@@ -79,6 +82,8 @@
 
 	last_gc_nanotime uint64 // last gc (monotonic time)
 	tinyallocs       uint64 // number of tiny allocations that didn't cause actual allocation; not exported to go directly
+	last_next_gc     uint64 // next_gc for the previous GC
+	last_heap_inuse  uint64 // heap_inuse at mark termination of the previous GC
 
 	// triggerRatio is the heap growth ratio that triggers marking.
 	//
diff --git a/libgo/go/runtime/nbpipe_pipe.go b/libgo/go/runtime/nbpipe_pipe.go
new file mode 100644
index 0000000..822b294
--- /dev/null
+++ b/libgo/go/runtime/nbpipe_pipe.go
@@ -0,0 +1,19 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly
+
+package runtime
+
+func nonblockingPipe() (r, w int32, errno int32) {
+	r, w, errno = pipe()
+	if errno != 0 {
+		return -1, -1, errno
+	}
+	closeonexec(r)
+	setNonblock(r)
+	closeonexec(w)
+	setNonblock(w)
+	return r, w, errno
+}
diff --git a/libgo/go/runtime/nbpipe_pipe2.go b/libgo/go/runtime/nbpipe_pipe2.go
new file mode 100644
index 0000000..e3639d9
--- /dev/null
+++ b/libgo/go/runtime/nbpipe_pipe2.go
@@ -0,0 +1,22 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build freebsd linux netbsd openbsd solaris
+
+package runtime
+
+func nonblockingPipe() (r, w int32, errno int32) {
+	r, w, errno = pipe2(_O_NONBLOCK | _O_CLOEXEC)
+	if errno == -_ENOSYS {
+		r, w, errno = pipe()
+		if errno != 0 {
+			return -1, -1, errno
+		}
+		closeonexec(r)
+		setNonblock(r)
+		closeonexec(w)
+		setNonblock(w)
+	}
+	return r, w, errno
+}
diff --git a/libgo/go/runtime/nbpipe_test.go b/libgo/go/runtime/nbpipe_test.go
new file mode 100644
index 0000000..981143e
--- /dev/null
+++ b/libgo/go/runtime/nbpipe_test.go
@@ -0,0 +1,102 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package runtime_test
+
+import (
+	"runtime"
+	"syscall"
+	"testing"
+	"unsafe"
+)
+
+func TestNonblockingPipe(t *testing.T) {
+	t.Parallel()
+
+	// NonblockingPipe is the test name for nonblockingPipe.
+	r, w, errno := runtime.NonblockingPipe()
+	if errno != 0 {
+		t.Fatal(syscall.Errno(errno))
+	}
+	defer func() {
+		runtime.Close(r)
+		runtime.Close(w)
+	}()
+
+	checkIsPipe(t, r, w)
+	checkNonblocking(t, r, "reader")
+	checkCloseonexec(t, r, "reader")
+	checkNonblocking(t, w, "writer")
+	checkCloseonexec(t, w, "writer")
+}
+
+func checkIsPipe(t *testing.T, r, w int32) {
+	bw := byte(42)
+	if n := runtime.Write(uintptr(w), unsafe.Pointer(&bw), 1); n != 1 {
+		t.Fatalf("Write(w, &b, 1) == %d, expected 1", n)
+	}
+	var br byte
+	if n := runtime.Read(r, unsafe.Pointer(&br), 1); n != 1 {
+		t.Fatalf("Read(r, &b, 1) == %d, expected 1", n)
+	}
+	if br != bw {
+		t.Errorf("pipe read %d, expected %d", br, bw)
+	}
+}
+
+func checkNonblocking(t *testing.T, fd int32, name string) {
+	t.Helper()
+	flags, errno := fcntl(uintptr(fd), syscall.F_GETFL, 0)
+	if errno != 0 {
+		t.Errorf("fcntl(%s, F_GETFL) failed: %v", name, syscall.Errno(errno))
+	} else if flags&syscall.O_NONBLOCK == 0 {
+		t.Errorf("O_NONBLOCK not set in %s flags %#x", name, flags)
+	}
+}
+
+func checkCloseonexec(t *testing.T, fd int32, name string) {
+	t.Helper()
+	flags, errno := fcntl(uintptr(fd), syscall.F_GETFD, 0)
+	if errno != 0 {
+		t.Errorf("fcntl(%s, F_GETFD) failed: %v", name, syscall.Errno(errno))
+	} else if flags&syscall.FD_CLOEXEC == 0 {
+		t.Errorf("FD_CLOEXEC not set in %s flags %#x", name, flags)
+	}
+}
+
+func TestSetNonblock(t *testing.T) {
+	t.Parallel()
+
+	r, w, errno := runtime.Pipe()
+	if errno != 0 {
+		t.Fatal(syscall.Errno(errno))
+	}
+	defer func() {
+		runtime.Close(r)
+		runtime.Close(w)
+	}()
+
+	checkIsPipe(t, r, w)
+
+	runtime.SetNonblock(r)
+	runtime.SetNonblock(w)
+	checkNonblocking(t, r, "reader")
+	checkNonblocking(t, w, "writer")
+
+	runtime.Closeonexec(r)
+	runtime.Closeonexec(w)
+	checkCloseonexec(t, r, "reader")
+	checkCloseonexec(t, w, "writer")
+}
+
+//extern __go_fcntl_uintptr
+func fcntlUintptr(fd, cmd, arg uintptr) (uintptr, uintptr)
+
+// Call fcntl libc function rather than calling syscall.
+func fcntl(fd uintptr, cmd int, arg uintptr) (uintptr, syscall.Errno) {
+	res, errno := fcntlUintptr(fd, uintptr(cmd), arg)
+	return res, syscall.Errno(errno)
+}
diff --git a/libgo/go/runtime/netpoll.go b/libgo/go/runtime/netpoll.go
index 1ce9808..d2fb775 100644
--- a/libgo/go/runtime/netpoll.go
+++ b/libgo/go/runtime/netpoll.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris windows
 
 package runtime
 
@@ -15,12 +15,26 @@
 //go:linkname netpoll
 
 // Integrated network poller (platform-independent part).
-// A particular implementation (epoll/kqueue) must define the following functions:
-// func netpollinit()			// to initialize the poller
-// func netpollopen(fd uintptr, pd *pollDesc) int32	// to arm edge-triggered notifications
-// and associate fd with pd.
-// An implementation must call the following function to denote that the pd is ready.
-// func netpollready(gpp **g, pd *pollDesc, mode int32)
+// A particular implementation (epoll/kqueue/port/AIX/Windows)
+// must define the following functions:
+//
+// func netpollinit()
+//     Initialize the poller. Only called once.
+//
+// func netpollopen(fd uintptr, pd *pollDesc) int32
+//     Arm edge-triggered notifications for fd. The pd argument is to pass
+//     back to netpollready when fd is ready. Return an errno value.
+//
+// func netpoll(delta int64) gList
+//     Poll the network. If delta < 0, block indefinitely. If delta == 0,
+//     poll without blocking. If delta > 0, block for up to delta nanoseconds.
+//     Return a list of goroutines built by calling netpollready.
+//
+// func netpollBreak()
+//     Wake up the network poller, assumed to be blocked in netpoll.
+//
+// func netpollIsPollDescriptor(fd uintptr) bool
+//     Reports whether fd is a file descriptor used by the poller.
 
 // pollDesc contains 2 binary semaphores, rg and wg, to park reader and writer
 // goroutines respectively. The semaphore can be in the following states:
@@ -82,15 +96,27 @@
 }
 
 var (
-	netpollInited  uint32
+	netpollInitLock mutex
+	netpollInited   uint32
+
 	pollcache      pollCache
 	netpollWaiters uint32
 )
 
 //go:linkname poll_runtime_pollServerInit internal..z2fpoll.runtime_pollServerInit
 func poll_runtime_pollServerInit() {
-	netpollinit()
-	atomic.Store(&netpollInited, 1)
+	netpollGenericInit()
+}
+
+func netpollGenericInit() {
+	if atomic.Load(&netpollInited) == 0 {
+		lock(&netpollInitLock)
+		if netpollInited == 0 {
+			netpollinit()
+			atomic.Store(&netpollInited, 1)
+		}
+		unlock(&netpollInitLock)
+	}
 }
 
 func netpollinited() bool {
@@ -102,14 +128,7 @@
 // poll_runtime_isPollServerDescriptor reports whether fd is a
 // descriptor being used by netpoll.
 func poll_runtime_isPollServerDescriptor(fd uintptr) bool {
-	fds := netpolldescriptor()
-	if GOOS != "aix" && GOOS != "hurd" {
-		return fd == fds
-	} else {
-		// AIX have a pipe in its netpoll implementation.
-		// Therefore, two fd are returned by netpolldescriptor using a mask.
-		return fd == fds&0xFFFF || fd == (fds>>16)&0xFFFF
-	}
+	return netpollIsPollDescriptor(fd)
 }
 
 //go:linkname poll_runtime_pollOpen internal..z2fpoll.runtime_pollOpen
@@ -240,13 +259,12 @@
 	if pd.rt.f == nil {
 		if pd.rd > 0 {
 			pd.rt.f = rtf
-			pd.rt.when = pd.rd
 			// Copy current seq into the timer arg.
 			// Timer func will check the seq against current descriptor seq,
 			// if they differ the descriptor was reused or timers were reset.
 			pd.rt.arg = pd
 			pd.rt.seq = pd.rseq
-			addtimer(&pd.rt)
+			resettimer(&pd.rt, pd.rd)
 		}
 	} else if pd.rd != rd0 || combo != combo0 {
 		pd.rseq++ // invalidate current timers
@@ -260,10 +278,9 @@
 	if pd.wt.f == nil {
 		if pd.wd > 0 && !combo {
 			pd.wt.f = netpollWriteDeadline
-			pd.wt.when = pd.wd
 			pd.wt.arg = pd
 			pd.wt.seq = pd.wseq
-			addtimer(&pd.wt)
+			resettimer(&pd.wt, pd.wd)
 		}
 	} else if pd.wd != wd0 || combo != combo0 {
 		pd.wseq++ // invalidate current timers
@@ -325,8 +342,13 @@
 	}
 }
 
-// make pd ready, newly runnable goroutines (if any) are added to toRun.
-// May run during STW, so write barriers are not allowed.
+// netpollready is called by the platform-specific netpoll function.
+// It declares that the fd associated with pd is ready for I/O.
+// The toRun argument is used to build a list of goroutines to return
+// from netpoll. The mode argument is 'r', 'w', or 'r'+'w' to indicate
+// whether the fd is ready for reading or writing or both.
+//
+// This may run while the world is stopped, so write barriers are not allowed.
 //go:nowritebarrier
 func netpollready(toRun *gList, pd *pollDesc, mode int32) {
 	var rg, wg *g
diff --git a/libgo/go/runtime/netpoll_aix.go b/libgo/go/runtime/netpoll_aix.go
index 39e36c7..a00742e 100644
--- a/libgo/go/runtime/netpoll_aix.go
+++ b/libgo/go/runtime/netpoll_aix.go
@@ -14,18 +14,6 @@
 //extern poll
 func libc_poll(pfds *pollfd, npfds uintptr, timeout uintptr) int32
 
-//go:noescape
-//extern pipe
-func libc_pipe(fd *int32) int32
-
-//extern __go_fcntl_uintptr
-func fcntlUintptr(fd, cmd, arg uintptr) (uintptr, uintptr)
-
-func fcntl(fd, cmd int32, arg uintptr) int32 {
-	r, _ := fcntlUintptr(uintptr(fd), uintptr(cmd), arg)
-	return int32(r)
-}
-
 // pollfd represents the poll structure for AIX operating system.
 type pollfd struct {
 	fd      int32
@@ -49,22 +37,13 @@
 )
 
 func netpollinit() {
-	var p [2]int32
-
 	// Create the pipe we use to wakeup poll.
-	if err := libc_pipe(&p[0]); err < 0 {
+	r, w, errno := nonblockingPipe()
+	if errno != 0 {
 		throw("netpollinit: failed to create pipe")
 	}
-	rdwake = p[0]
-	wrwake = p[1]
-
-	fl := uintptr(fcntl(rdwake, _F_GETFL, 0))
-	fcntl(rdwake, _F_SETFL, fl|_O_NONBLOCK)
-	fcntl(rdwake, _F_SETFD, _FD_CLOEXEC)
-
-	fl = uintptr(fcntl(wrwake, _F_GETFL, 0))
-	fcntl(wrwake, _F_SETFL, fl|_O_NONBLOCK)
-	fcntl(wrwake, _F_SETFD, _FD_CLOEXEC)
+	rdwake = r
+	wrwake = w
 
 	// Pre-allocate array of pollfd structures for poll.
 	pfds = make([]pollfd, 1, 128)
@@ -77,12 +56,8 @@
 	pds[0] = nil
 }
 
-func netpolldescriptor() uintptr {
-	// Both fd must be returned
-	if rdwake > 0xFFFF || wrwake > 0xFFFF {
-		throw("netpolldescriptor: invalid fd number")
-	}
-	return uintptr(rdwake<<16 | wrwake)
+func netpollIsPollDescriptor(fd uintptr) bool {
+	return fd == uintptr(rdwake) || fd == uintptr(wrwake)
 }
 
 // netpollwakeup writes on wrwake to wakeup poll before any changes.
@@ -146,12 +121,32 @@
 	unlock(&mtxset)
 }
 
+// netpollBreak interrupts an epollwait.
+func netpollBreak() {
+	netpollwakeup()
+}
+
+// netpoll checks for ready network connections.
+// Returns list of goroutines that become runnable.
+// delay < 0: blocks indefinitely
+// delay == 0: does not block, just polls
+// delay > 0: block for up to that many nanoseconds
 //go:nowritebarrierrec
-func netpoll(block bool) gList {
-	timeout := ^uintptr(0)
-	if !block {
-		timeout = 0
+func netpoll(delay int64) gList {
+	var timeout uintptr
+	if delay < 0 {
+		timeout = ^uintptr(0)
+	} else if delay == 0 {
+		// TODO: call poll with timeout == 0
 		return gList{}
+	} else if delay < 1e6 {
+		timeout = 1
+	} else if delay < 1e15 {
+		timeout = uintptr(delay / 1e6)
+	} else {
+		// An arbitrary cap on how long to wait for a timer.
+		// 1e9 ms == ~11.5 days.
+		timeout = 1e9
 	}
 retry:
 	lock(&mtxpoll)
@@ -167,20 +162,29 @@
 			throw("poll failed")
 		}
 		unlock(&mtxset)
+		// If a timed sleep was interrupted, just return to
+		// recalculate how long we should sleep now.
+		if timeout > 0 {
+			return gList{}
+		}
 		goto retry
 	}
 	// Check if some descriptors need to be changed
 	if n != 0 && pfds[0].revents&(_POLLIN|_POLLHUP|_POLLERR) != 0 {
-		var b [1]byte
-		for read(rdwake, unsafe.Pointer(&b[0]), 1) == 1 {
+		if delay != 0 {
+			// A netpollwakeup could be picked up by a
+			// non-blocking poll. Only clear the wakeup
+			// if blocking.
+			var b [1]byte
+			for read(rdwake, unsafe.Pointer(&b[0]), 1) == 1 {
+			}
 		}
-		// Do not look at the other fds in this case as the mode may have changed
-		// XXX only additions of flags are made, so maybe it is ok
-		unlock(&mtxset)
-		goto retry
+		// Still look at the other fds even if the mode may have
+		// changed, as netpollBreak might have been called.
+		n--
 	}
 	var toRun gList
-	for i := 0; i < len(pfds) && n > 0; i++ {
+	for i := 1; i < len(pfds) && n > 0; i++ {
 		pfd := &pfds[i]
 
 		var mode int32
@@ -202,8 +206,5 @@
 		}
 	}
 	unlock(&mtxset)
-	if block && toRun.empty() {
-		goto retry
-	}
 	return toRun
 }
diff --git a/libgo/go/runtime/netpoll_epoll.go b/libgo/go/runtime/netpoll_epoll.go
index 885ac1f..7b215f3 100644
--- a/libgo/go/runtime/netpoll_epoll.go
+++ b/libgo/go/runtime/netpoll_epoll.go
@@ -22,33 +22,44 @@
 //extern epoll_wait
 func epollwait(epfd int32, ev *epollevent, nev, timeout int32) int32
 
-//extern __go_fcntl_uintptr
-func fcntlUintptr(fd, cmd, arg uintptr) (uintptr, uintptr)
-
-func closeonexec(fd int32) {
-	fcntlUintptr(uintptr(fd), _F_SETFD, _FD_CLOEXEC)
-}
-
 var (
 	epfd int32 = -1 // epoll descriptor
+
+	netpollBreakRd, netpollBreakWr uintptr // for netpollBreak
 )
 
 func netpollinit() {
 	epfd = epollcreate1(_EPOLL_CLOEXEC)
-	if epfd >= 0 {
-		return
-	}
-	epfd = epollcreate(1024)
-	if epfd >= 0 {
+	if epfd < 0 {
+		epfd = epollcreate(1024)
+		if epfd < 0 {
+			println("runtime: epollcreate failed with", -epfd)
+			throw("runtime: netpollinit failed")
+		}
 		closeonexec(epfd)
-		return
 	}
-	println("netpollinit: failed to create epoll descriptor", errno())
-	throw("netpollinit: failed to create descriptor")
+	r, w, cerrno := nonblockingPipe()
+	if cerrno != 0 {
+		println("runtime: pipe failed with", cerrno)
+		throw("runtime: pipe failed")
+	}
+	ev := epollevent{
+		events: _EPOLLIN,
+	}
+	*(**uintptr)(unsafe.Pointer(&ev.data)) = &netpollBreakRd
+	if epollctl(epfd, _EPOLL_CTL_ADD, r, &ev) < 0 {
+		cerrno = int32(errno())
+	}
+	if cerrno != 0 {
+		println("runtime: epollctl failed with", cerrno)
+		throw("runtime: epollctl failed")
+	}
+	netpollBreakRd = uintptr(r)
+	netpollBreakWr = uintptr(w)
 }
 
-func netpolldescriptor() uintptr {
-	return uintptr(epfd)
+func netpollIsPollDescriptor(fd uintptr) bool {
+	return fd == uintptr(epfd) || fd == netpollBreakRd || fd == netpollBreakWr
 }
 
 func netpollopen(fd uintptr, pd *pollDesc) int32 {
@@ -73,15 +84,47 @@
 	throw("runtime: unused")
 }
 
-// polls for ready network connections
-// returns list of goroutines that become runnable
-func netpoll(block bool) gList {
+// netpollBreak interrupts an epollwait.
+func netpollBreak() {
+	for {
+		var b byte
+		n := write(netpollBreakWr, unsafe.Pointer(&b), 1)
+		if n == 1 {
+			break
+		}
+		if n == -_EINTR {
+			continue
+		}
+		if n == -_EAGAIN {
+			return
+		}
+		println("runtime: netpollBreak write failed with", -n)
+		throw("runtime: netpollBreak write failed")
+	}
+}
+
+// netpoll checks for ready network connections.
+// Returns list of goroutines that become runnable.
+// delay < 0: blocks indefinitely
+// delay == 0: does not block, just polls
+// delay > 0: block for up to that many nanoseconds
+func netpoll(delay int64) gList {
 	if epfd == -1 {
 		return gList{}
 	}
-	waitms := int32(-1)
-	if !block {
+	var waitms int32
+	if delay < 0 {
+		waitms = -1
+	} else if delay == 0 {
 		waitms = 0
+	} else if delay < 1e6 {
+		waitms = 1
+	} else if delay < 1e15 {
+		waitms = int32(delay / 1e6)
+	} else {
+		// An arbitrary cap on how long to wait for a timer.
+		// 1e9 ms == ~11.5 days.
+		waitms = 1e9
 	}
 	var events [128]epollevent
 retry:
@@ -92,6 +135,11 @@
 			println("runtime: epollwait on fd", epfd, "failed with", e)
 			throw("runtime: netpoll failed")
 		}
+		// If a timed sleep was interrupted, just return to
+		// recalculate how long we should sleep now.
+		if waitms > 0 {
+			return gList{}
+		}
 		goto retry
 	}
 	var toRun gList
@@ -100,6 +148,22 @@
 		if ev.events == 0 {
 			continue
 		}
+
+		if *(**uintptr)(unsafe.Pointer(&ev.data)) == &netpollBreakRd {
+			if ev.events != _EPOLLIN {
+				println("runtime: netpoll: break fd ready for", ev.events)
+				throw("runtime: netpoll: break fd ready for something unexpected")
+			}
+			if delay != 0 {
+				// netpollBreak could be picked up by a
+				// nonblocking poll. Only read the byte
+				// if blocking.
+				var tmp [16]byte
+				read(int32(netpollBreakRd), noescape(unsafe.Pointer(&tmp[0])), int32(len(tmp)))
+			}
+			continue
+		}
+
 		var mode int32
 		if ev.events&(_EPOLLIN|_EPOLLRDHUP|_EPOLLHUP|_EPOLLERR) != 0 {
 			mode += 'r'
@@ -116,8 +180,5 @@
 			netpollready(&toRun, pd, mode)
 		}
 	}
-	if block && toRun.empty() {
-		goto retry
-	}
 	return toRun
 }
diff --git a/libgo/go/runtime/netpoll_fake.go b/libgo/go/runtime/netpoll_fake.go
index 5b1a63a..b2af3b8 100644
--- a/libgo/go/runtime/netpoll_fake.go
+++ b/libgo/go/runtime/netpoll_fake.go
@@ -2,18 +2,18 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// Fake network poller for NaCl and wasm/js.
-// Should never be used, because NaCl and wasm/js network connections do not honor "SetNonblock".
+// Fake network poller for wasm/js.
+// Should never be used, because wasm/js network connections do not honor "SetNonblock".
 
-// +build nacl js,wasm
+// +build js,wasm
 
 package runtime
 
 func netpollinit() {
 }
 
-func netpolldescriptor() uintptr {
-	return ^uintptr(0)
+func netpollIsPollDescriptor(fd uintptr) bool {
+	return false
 }
 
 func netpollopen(fd uintptr, pd *pollDesc) int32 {
@@ -27,6 +27,9 @@
 func netpollarm(pd *pollDesc, mode int) {
 }
 
-func netpoll(block bool) gList {
+func netpollBreak() {
+}
+
+func netpoll(delay int64) gList {
 	return gList{}
 }
diff --git a/libgo/go/runtime/netpoll_kqueue.go b/libgo/go/runtime/netpoll_kqueue.go
index ce1acdf..9450461 100644
--- a/libgo/go/runtime/netpoll_kqueue.go
+++ b/libgo/go/runtime/netpoll_kqueue.go
@@ -17,16 +17,10 @@
 //extern kevent
 func kevent(kq int32, ch *keventt, nch uintptr, ev *keventt, nev uintptr, ts *timespec) int32
 
-//extern __go_fcntl_uintptr
-func fcntlUintptr(fd, cmd, arg uintptr) (uintptr, uintptr)
-
-//go:nosplit
-func closeonexec(fd int32) {
-	fcntlUintptr(uintptr(fd), _F_SETFD, _FD_CLOEXEC)
-}
-
 var (
 	kq int32 = -1
+
+	netpollBreakRd, netpollBreakWr uintptr // for netpollBreak
 )
 
 func netpollinit() {
@@ -36,10 +30,27 @@
 		throw("runtime: netpollinit failed")
 	}
 	closeonexec(kq)
+	r, w, errno := nonblockingPipe()
+	if errno != 0 {
+		println("runtime: pipe failed with", -errno)
+		throw("runtime: pipe failed")
+	}
+	ev := keventt{
+		filter: _EVFILT_READ,
+		flags:  _EV_ADD,
+	}
+	*(*uintptr)(unsafe.Pointer(&ev.ident)) = uintptr(r)
+	n := kevent(kq, &ev, 1, nil, 0, nil)
+	if n < 0 {
+		println("runtime: kevent failed with", -n)
+		throw("runtime: kevent failed")
+	}
+	netpollBreakRd = uintptr(r)
+	netpollBreakWr = uintptr(w)
 }
 
-func netpolldescriptor() uintptr {
-	return uintptr(kq)
+func netpollIsPollDescriptor(fd uintptr) bool {
+	return fd == uintptr(kq) || fd == netpollBreakRd || fd == netpollBreakWr
 }
 
 func netpollopen(fd uintptr, pd *pollDesc) int32 {
@@ -72,15 +83,43 @@
 	throw("runtime: unused")
 }
 
-// Polls for ready network connections.
+// netpollBreak interrupts an epollwait.
+func netpollBreak() {
+	for {
+		var b byte
+		n := write(netpollBreakWr, unsafe.Pointer(&b), 1)
+		if n == 1 || n == -_EAGAIN {
+			break
+		}
+		if n == -_EINTR {
+			continue
+		}
+		println("runtime: netpollBreak write failed with", -n)
+		throw("runtime: netpollBreak write failed")
+	}
+}
+
+// netpoll checks for ready network connections.
 // Returns list of goroutines that become runnable.
-func netpoll(block bool) gList {
+// delay < 0: blocks indefinitely
+// delay == 0: does not block, just polls
+// delay > 0: block for up to that many nanoseconds
+func netpoll(delay int64) gList {
 	if kq == -1 {
 		return gList{}
 	}
 	var tp *timespec
 	var ts timespec
-	if !block {
+	if delay < 0 {
+		tp = nil
+	} else if delay == 0 {
+		tp = &ts
+	} else {
+		ts.setNsec(delay)
+		if ts.tv_sec > 1e6 {
+			// Darwin returns EINVAL if the sleep time is too long.
+			ts.tv_sec = 1e6
+		}
 		tp = &ts
 	}
 	var events [64]keventt
@@ -92,11 +131,32 @@
 			println("runtime: kevent on fd", kq, "failed with", e)
 			throw("runtime: netpoll failed")
 		}
+		// If a timed sleep was interrupted, just return to
+		// recalculate how long we should sleep now.
+		if delay > 0 {
+			return gList{}
+		}
 		goto retry
 	}
 	var toRun gList
 	for i := 0; i < int(n); i++ {
 		ev := &events[i]
+
+		if uintptr(ev.ident) == netpollBreakRd {
+			if ev.filter != _EVFILT_READ {
+				println("runtime: netpoll: break fd ready for", ev.filter)
+				throw("runtime: netpoll: break fd ready for something unexpected")
+			}
+			if delay != 0 {
+				// netpollBreak could be picked up by a
+				// nonblocking poll. Only read the byte
+				// if blocking.
+				var tmp [16]byte
+				read(int32(netpollBreakRd), noescape(unsafe.Pointer(&tmp[0])), int32(len(tmp)))
+			}
+			continue
+		}
+
 		var mode int32
 		switch ev.filter {
 		case _EVFILT_READ:
@@ -126,8 +186,5 @@
 			netpollready(&toRun, pd, mode)
 		}
 	}
-	if block && toRun.empty() {
-		goto retry
-	}
 	return toRun
 }
diff --git a/libgo/go/runtime/netpoll_solaris.go b/libgo/go/runtime/netpoll_solaris.go
index 222af29..acb8bab 100644
--- a/libgo/go/runtime/netpoll_solaris.go
+++ b/libgo/go/runtime/netpoll_solaris.go
@@ -67,14 +67,6 @@
 // again we know for sure we are always talking about the same file
 // descriptor and can safely access the data we want (the event set).
 
-//extern __go_fcntl_uintptr
-func fcntlUintptr(fd, cmd, arg uintptr) (uintptr, uintptr)
-
-func fcntl(fd, cmd int32, arg uintptr) int32 {
-	r, _ := fcntlUintptr(uintptr(fd), uintptr(cmd), arg)
-	return int32(r)
-}
-
 //extern port_create
 func port_create() int32
 
@@ -88,12 +80,15 @@
 //extern port_getn
 func port_getn(port int32, evs *portevent, max uint32, nget *uint32, timeout *timespec) int32
 
+//extern port_alert
+func port_alert(port int32, flags, events uint32, user uintptr) int32
+
 var portfd int32 = -1
 
 func netpollinit() {
 	portfd = port_create()
 	if portfd >= 0 {
-		fcntl(portfd, _F_SETFD, _FD_CLOEXEC)
+		closeonexec(portfd)
 		return
 	}
 
@@ -101,8 +96,8 @@
 	throw("runtime: netpollinit failed")
 }
 
-func netpolldescriptor() uintptr {
-	return uintptr(portfd)
+func netpollIsPollDescriptor(fd uintptr) bool {
+	return fd == uintptr(portfd)
 }
 
 func netpollopen(fd uintptr, pd *pollDesc) int32 {
@@ -164,27 +159,68 @@
 	unlock(&pd.lock)
 }
 
-// polls for ready network connections
-// returns list of goroutines that become runnable
-func netpoll(block bool) gList {
+// netpollBreak interrupts a port_getn wait.
+func netpollBreak() {
+	// Use port_alert to put portfd into alert mode.
+	// This will wake up all threads sleeping in port_getn on portfd,
+	// and cause their calls to port_getn to return immediately.
+	// Further, until portfd is taken out of alert mode,
+	// all calls to port_getn will return immediately.
+	if port_alert(portfd, _PORT_ALERT_UPDATE, _POLLHUP, uintptr(unsafe.Pointer(&portfd))) < 0 {
+		if e := errno(); e != _EBUSY {
+			println("runtime: port_alert failed with", e)
+			throw("runtime: netpoll: port_alert failed")
+		}
+	}
+}
+
+// netpoll checks for ready network connections.
+// Returns list of goroutines that become runnable.
+// delay < 0: blocks indefinitely
+// delay == 0: does not block, just polls
+// delay > 0: block for up to that many nanoseconds
+func netpoll(delay int64) gList {
 	if portfd == -1 {
 		return gList{}
 	}
 
 	var wait *timespec
-	var zero timespec
-	if !block {
-		wait = &zero
+	var ts timespec
+	if delay < 0 {
+		wait = nil
+	} else if delay == 0 {
+		wait = &ts
+	} else {
+		ts.setNsec(delay)
+		if ts.tv_sec > 1e6 {
+			// An arbitrary cap on how long to wait for a timer.
+			// 1e6 s == ~11.5 days.
+			ts.tv_sec = 1e6
+		}
+		wait = &ts
 	}
 
 	var events [128]portevent
 retry:
 	var n uint32 = 1
-	if port_getn(portfd, &events[0], uint32(len(events)), &n, wait) < 0 {
-		if e := errno(); e != _EINTR {
+	r := port_getn(portfd, &events[0], uint32(len(events)), &n, wait)
+	e := errno()
+	if r < 0 && e == _ETIME && n > 0 {
+		// As per port_getn(3C), an ETIME failure does not preclude the
+		// delivery of some number of events.  Treat a timeout failure
+		// with delivered events as a success.
+		r = 0
+	}
+	if r < 0 {
+		if e != _EINTR && e != _ETIME {
 			print("runtime: port_getn on fd ", portfd, " failed (errno=", e, ")\n")
 			throw("runtime: netpoll failed")
 		}
+		// If a timed sleep was interrupted and there are no events,
+		// just return to recalculate how long we should sleep now.
+		if delay > 0 {
+			return gList{}
+		}
 		goto retry
 	}
 
@@ -192,6 +228,24 @@
 	for i := 0; i < int(n); i++ {
 		ev := &events[i]
 
+		if ev.portev_source == _PORT_SOURCE_ALERT {
+			if ev.portev_events != _POLLHUP || unsafe.Pointer(ev.portev_user) != unsafe.Pointer(&portfd) {
+				throw("runtime: netpoll: bad port_alert wakeup")
+			}
+			if delay != 0 {
+				// Now that a blocking call to netpoll
+				// has seen the alert, take portfd
+				// back out of alert mode.
+				// See the comment in netpollBreak.
+				if port_alert(portfd, 0, 0, 0) < 0 {
+					e := errno()
+					println("runtime: port_alert failed with", e)
+					throw("runtime: netpoll: port_alert failed")
+				}
+			}
+			continue
+		}
+
 		if ev.portev_events == 0 {
 			continue
 		}
@@ -228,8 +282,5 @@
 		}
 	}
 
-	if block && toRun.empty() {
-		goto retry
-	}
 	return toRun
 }
diff --git a/libgo/go/runtime/netpoll_stub.go b/libgo/go/runtime/netpoll_stub.go
index f585333..fe45cfb 100644
--- a/libgo/go/runtime/netpoll_stub.go
+++ b/libgo/go/runtime/netpoll_stub.go
@@ -6,16 +6,42 @@
 
 package runtime
 
+import "runtime/internal/atomic"
+
+var netpollInited uint32
 var netpollWaiters uint32
 
+var netpollStubLock mutex
+var netpollNote note
+var netpollBroken uint32
+
+func netpollGenericInit() {
+	atomic.Store(&netpollInited, 1)
+}
+
+func netpollBreak() {
+	if atomic.Cas(&netpollBroken, 0, 1) {
+		notewakeup(&netpollNote)
+	}
+}
+
 // Polls for ready network connections.
 // Returns list of goroutines that become runnable.
-func netpoll(block bool) gList {
+func netpoll(delay int64) gList {
 	// Implementation for platforms that do not support
 	// integrated network poller.
+	if delay != 0 {
+		// This lock ensures that only one goroutine tries to use
+		// the note. It should normally be completely uncontended.
+		lock(&netpollStubLock)
+		noteclear(&netpollNote)
+		atomic.Store(&netpollBroken, 0)
+		notetsleep(&netpollNote, delay)
+		unlock(&netpollStubLock)
+	}
 	return gList{}
 }
 
 func netpollinited() bool {
-	return false
+	return atomic.Load(&netpollInited) != 0
 }
diff --git a/libgo/go/runtime/netpoll_windows.go b/libgo/go/runtime/netpoll_windows.go
index 07ef15c..ced52cb 100644
--- a/libgo/go/runtime/netpoll_windows.go
+++ b/libgo/go/runtime/netpoll_windows.go
@@ -41,8 +41,8 @@
 	}
 }
 
-func netpolldescriptor() uintptr {
-	return iocphandle
+func netpollIsPollDescriptor(fd uintptr) bool {
+	return fd == iocphandle
 }
 
 func netpollopen(fd uintptr, pd *pollDesc) int32 {
@@ -61,9 +61,19 @@
 	throw("runtime: unused")
 }
 
-// Polls for completed network IO.
+func netpollBreak() {
+	if stdcall4(_PostQueuedCompletionStatus, iocphandle, 0, 0, 0) == 0 {
+		println("runtime: netpoll: PostQueuedCompletionStatus failed (errno=", getlasterror(), ")")
+		throw("runtime: netpoll: PostQueuedCompletionStatus failed")
+	}
+}
+
+// netpoll checks for ready network connections.
 // Returns list of goroutines that become runnable.
-func netpoll(block bool) gList {
+// delay < 0: blocks indefinitely
+// delay == 0: does not block, just polls
+// delay > 0: block for up to that many nanoseconds
+func netpoll(delay int64) gList {
 	var entries [64]overlappedEntry
 	var wait, qty, key, flags, n, i uint32
 	var errno int32
@@ -75,23 +85,32 @@
 	if iocphandle == _INVALID_HANDLE_VALUE {
 		return gList{}
 	}
-	wait = 0
-	if block {
+	if delay < 0 {
 		wait = _INFINITE
+	} else if delay == 0 {
+		wait = 0
+	} else if delay < 1e6 {
+		wait = 1
+	} else if delay < 1e15 {
+		wait = uint32(delay / 1e6)
+	} else {
+		// An arbitrary cap on how long to wait for a timer.
+		// 1e9 ms == ~11.5 days.
+		wait = 1e9
 	}
-retry:
+
 	if _GetQueuedCompletionStatusEx != nil {
 		n = uint32(len(entries) / int(gomaxprocs))
 		if n < 8 {
 			n = 8
 		}
-		if block {
+		if delay != 0 {
 			mp.blocked = true
 		}
 		if stdcall6(_GetQueuedCompletionStatusEx, iocphandle, uintptr(unsafe.Pointer(&entries[0])), uintptr(n), uintptr(unsafe.Pointer(&n)), uintptr(wait), 0) == 0 {
 			mp.blocked = false
 			errno = int32(getlasterror())
-			if !block && errno == _WAIT_TIMEOUT {
+			if errno == _WAIT_TIMEOUT {
 				return gList{}
 			}
 			println("runtime: GetQueuedCompletionStatusEx failed (errno=", errno, ")")
@@ -100,24 +119,32 @@
 		mp.blocked = false
 		for i = 0; i < n; i++ {
 			op = entries[i].op
-			errno = 0
-			qty = 0
-			if stdcall5(_WSAGetOverlappedResult, op.pd.fd, uintptr(unsafe.Pointer(op)), uintptr(unsafe.Pointer(&qty)), 0, uintptr(unsafe.Pointer(&flags))) == 0 {
-				errno = int32(getlasterror())
+			if op != nil {
+				errno = 0
+				qty = 0
+				if stdcall5(_WSAGetOverlappedResult, op.pd.fd, uintptr(unsafe.Pointer(op)), uintptr(unsafe.Pointer(&qty)), 0, uintptr(unsafe.Pointer(&flags))) == 0 {
+					errno = int32(getlasterror())
+				}
+				handlecompletion(&toRun, op, errno, qty)
+			} else {
+				if delay == 0 {
+					// Forward the notification to the
+					// blocked poller.
+					netpollBreak()
+				}
 			}
-			handlecompletion(&toRun, op, errno, qty)
 		}
 	} else {
 		op = nil
 		errno = 0
 		qty = 0
-		if block {
+		if delay != 0 {
 			mp.blocked = true
 		}
 		if stdcall5(_GetQueuedCompletionStatus, iocphandle, uintptr(unsafe.Pointer(&qty)), uintptr(unsafe.Pointer(&key)), uintptr(unsafe.Pointer(&op)), uintptr(wait)) == 0 {
 			mp.blocked = false
 			errno = int32(getlasterror())
-			if !block && errno == _WAIT_TIMEOUT {
+			if errno == _WAIT_TIMEOUT {
 				return gList{}
 			}
 			if op == nil {
@@ -127,11 +154,16 @@
 			// dequeued failed IO packet, so report that
 		}
 		mp.blocked = false
+		if op == nil {
+			if delay == 0 {
+				// Forward the notification to the
+				// blocked poller.
+				netpollBreak()
+			}
+			return gList{}
+		}
 		handlecompletion(&toRun, op, errno, qty)
 	}
-	if block && toRun.empty() {
-		goto retry
-	}
 	return toRun
 }
 
diff --git a/libgo/go/runtime/os3_solaris.go b/libgo/go/runtime/os3_solaris.go
index d5fbccd..001feed 100644
--- a/libgo/go/runtime/os3_solaris.go
+++ b/libgo/go/runtime/os3_solaris.go
@@ -25,13 +25,6 @@
 	return n
 }
 
-func osinit() {
-	ncpu = getncpu()
-	if physPageSize == 0 {
-		physPageSize = uintptr(getPageSize())
-	}
-}
-
 func sysargs(argc int32, argv **byte) {
 	executablePath = gostringnocopy(getexecname())
 }
diff --git a/libgo/go/runtime/os_darwin.go b/libgo/go/runtime/os_darwin.go
index 498bd43..58e0412 100644
--- a/libgo/go/runtime/os_darwin.go
+++ b/libgo/go/runtime/os_darwin.go
@@ -6,24 +6,6 @@
 
 import "unsafe"
 
-//extern pipe
-func libcPipe([2]int32) int32
-
-func pipe() (r, w int32, e int32) {
-	var p [2]int32
-	r := libcPipe(noescape(unsafe.Pointer(&p)))
-	if r < 0 {
-		e = int32(errno())
-	}
-	return p[0], p[1], e
-}
-
-//go:nosplit
-func setNonblock(fd int32) {
-	flags := fcntlUintptr(uintptr(fd), _F_GETFL, 0)
-	fcntlUintptr(uintptr(fd), _F_SETFL, flags|_O_NONBLOCK)
-}
-
 type mOS struct {
 	initialized bool
 	mutex       pthreadmutex
diff --git a/libgo/go/runtime/os_freebsd_arm64.go b/libgo/go/runtime/os_freebsd_arm64.go
new file mode 100644
index 0000000..51ebf9d
--- /dev/null
+++ b/libgo/go/runtime/os_freebsd_arm64.go
@@ -0,0 +1,155 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import "internal/cpu"
+
+const (
+	hwcap_FP       = 1 << 0
+	hwcap_ASIMD    = 1 << 1
+	hwcap_EVTSTRM  = 1 << 2
+	hwcap_AES      = 1 << 3
+	hwcap_PMULL    = 1 << 4
+	hwcap_SHA1     = 1 << 5
+	hwcap_SHA2     = 1 << 6
+	hwcap_CRC32    = 1 << 7
+	hwcap_ATOMICS  = 1 << 8
+	hwcap_FPHP     = 1 << 9
+	hwcap_ASIMDHP  = 1 << 10
+	hwcap_CPUID    = 1 << 11
+	hwcap_ASIMDRDM = 1 << 12
+	hwcap_JSCVT    = 1 << 13
+	hwcap_FCMA     = 1 << 14
+	hwcap_LRCPC    = 1 << 15
+	hwcap_DCPOP    = 1 << 16
+	hwcap_SHA3     = 1 << 17
+	hwcap_SM3      = 1 << 18
+	hwcap_SM4      = 1 << 19
+	hwcap_ASIMDDP  = 1 << 20
+	hwcap_SHA512   = 1 << 21
+	hwcap_SVE      = 1 << 22
+	hwcap_ASIMDFHM = 1 << 23
+)
+
+func getisar0() uint64
+func getisar1() uint64
+func getpfr0() uint64
+
+// no hwcap support on FreeBSD aarch64, we need to retrieve the info from
+// ID_AA64ISAR0_EL1, ID_AA64ISAR1_EL1 and ID_AA64PFR0_EL1
+func archauxv(tag, val uintptr) {
+	var isar0, isar1, pfr0 uint64
+
+	isar0 = getisar0()
+	isar1 = getisar1()
+	pfr0 = getpfr0()
+
+	// ID_AA64ISAR0_EL1
+	switch extractBits(isar0, 4, 7) {
+	case 1:
+		cpu.HWCap |= hwcap_AES
+	case 2:
+		cpu.HWCap |= hwcap_PMULL | hwcap_AES
+	}
+
+	switch extractBits(isar0, 8, 11) {
+	case 1:
+		cpu.HWCap |= hwcap_SHA1
+	}
+
+	switch extractBits(isar0, 12, 15) {
+	case 1:
+		cpu.HWCap |= hwcap_SHA2
+	case 2:
+		cpu.HWCap |= hwcap_SHA2 | hwcap_SHA512
+	}
+
+	switch extractBits(isar0, 16, 19) {
+	case 1:
+		cpu.HWCap |= hwcap_CRC32
+	}
+
+	switch extractBits(isar0, 20, 23) {
+	case 2:
+		cpu.HWCap |= hwcap_ATOMICS
+	}
+
+	switch extractBits(isar0, 28, 31) {
+	case 1:
+		cpu.HWCap |= hwcap_ASIMDRDM
+	}
+
+	switch extractBits(isar0, 32, 35) {
+	case 1:
+		cpu.HWCap |= hwcap_SHA3
+	}
+
+	switch extractBits(isar0, 36, 39) {
+	case 1:
+		cpu.HWCap |= hwcap_SM3
+	}
+
+	switch extractBits(isar0, 40, 43) {
+	case 1:
+		cpu.HWCap |= hwcap_SM4
+	}
+
+	switch extractBits(isar0, 44, 47) {
+	case 1:
+		cpu.HWCap |= hwcap_ASIMDDP
+	}
+
+	// ID_AA64ISAR1_EL1
+	switch extractBits(isar1, 0, 3) {
+	case 1:
+		cpu.HWCap |= hwcap_DCPOP
+	}
+
+	switch extractBits(isar1, 12, 15) {
+	case 1:
+		cpu.HWCap |= hwcap_JSCVT
+	}
+
+	switch extractBits(isar1, 16, 19) {
+	case 1:
+		cpu.HWCap |= hwcap_FCMA
+	}
+
+	switch extractBits(isar1, 20, 23) {
+	case 1:
+		cpu.HWCap |= hwcap_LRCPC
+	}
+
+	// ID_AA64PFR0_EL1
+	switch extractBits(pfr0, 16, 19) {
+	case 0:
+		cpu.HWCap |= hwcap_FP
+	case 1:
+		cpu.HWCap |= hwcap_FP | hwcap_FPHP
+	}
+
+	switch extractBits(pfr0, 20, 23) {
+	case 0:
+		cpu.HWCap |= hwcap_ASIMD
+	case 1:
+		cpu.HWCap |= hwcap_ASIMD | hwcap_ASIMDHP
+	}
+
+	switch extractBits(pfr0, 32, 35) {
+	case 1:
+		cpu.HWCap |= hwcap_SVE
+	}
+}
+
+func extractBits(data uint64, start, end uint) uint {
+	return (uint)(data>>start) & ((1 << (end - start + 1)) - 1)
+}
+
+//go:nosplit
+func cputicks() int64 {
+	// Currently cputicks() is used in blocking profiler and to seed fastrand().
+	// nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
+	return nanotime()
+}
diff --git a/libgo/go/runtime/os_gccgo.go b/libgo/go/runtime/os_gccgo.go
index ef33d67..ab19022 100644
--- a/libgo/go/runtime/os_gccgo.go
+++ b/libgo/go/runtime/os_gccgo.go
@@ -51,3 +51,45 @@
 	closefd(fd)
 	extendRandom(r, int(n))
 }
+
+//go:noescape
+//extern pipe
+func libcPipe(*[2]int32) int32
+
+func pipe() (r, w int32, e int32) {
+	var p [2]int32
+	res := libcPipe(&p)
+	if res < 0 {
+		e = int32(errno())
+	}
+	return p[0], p[1], e
+}
+
+//go:noescape
+//extern pipe2
+func libcPipe2(*[2]int32, int32) int32
+
+func pipe2(flags int32) (r, w int32, e int32) {
+	var p [2]int32
+	res := libcPipe2(&p, flags)
+	if res < 0 {
+		e = int32(errno())
+	}
+	return p[0], p[1], e
+}
+
+//extern __go_fcntl_uintptr
+func fcntlUintptr(fd, cmd, arg uintptr) (uintptr, uintptr)
+
+//go:nosplit
+func closeonexec(fd int32) {
+	fcntlUintptr(uintptr(fd), _F_SETFD, _FD_CLOEXEC)
+}
+
+//go:nosplit
+func setNonblock(fd int32) {
+	flags, errno := fcntlUintptr(uintptr(fd), _F_GETFL, 0)
+	if errno == 0 {
+		fcntlUintptr(uintptr(fd), _F_SETFL, flags|_O_NONBLOCK)
+	}
+}
diff --git a/libgo/go/runtime/os_illumos.go b/libgo/go/runtime/os_illumos.go
new file mode 100644
index 0000000..ddcb8c9
--- /dev/null
+++ b/libgo/go/runtime/os_illumos.go
@@ -0,0 +1,102 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import (
+	"unsafe"
+)
+
+// Return the minimum value seen for the zone CPU cap, or 0 if no cap is
+// detected.
+func getcpucap() uint64 {
+	// The resource control block is an opaque object whose size is only
+	// known to libc.  In practice, given the contents, it is unlikely to
+	// grow beyond 8KB so we'll use a static buffer of that size here.
+	const rblkmaxsize = 8 * 1024
+	if rctlblk_size() > rblkmaxsize {
+		return 0
+	}
+
+	// The "zone.cpu-cap" resource control, as described in
+	// resource_controls(5), "sets a limit on the amount of CPU time that
+	// can be used by a zone.  The unit used is the percentage of a single
+	// CPU that can be used by all user threads in a zone, expressed as an
+	// integer."  A C string of the name must be passed to getrctl(2).
+	name := []byte("zone.cpu-cap\x00")
+
+	// To iterate over the list of values for a particular resource
+	// control, we need two blocks: one for the previously read value and
+	// one for the next value.
+	var rblk0 [rblkmaxsize]byte
+	var rblk1 [rblkmaxsize]byte
+	rblk := &rblk0[0]
+	rblkprev := &rblk1[0]
+
+	var flag uint32 = _RCTL_FIRST
+	var capval uint64 = 0
+
+	for {
+		if getrctl(unsafe.Pointer(&name[0]), unsafe.Pointer(rblkprev), unsafe.Pointer(rblk), flag) != 0 {
+			// The end of the sequence is reported as an ENOENT
+			// failure, but determining the CPU cap is not critical
+			// here.  We'll treat any failure as if it were the end
+			// of sequence.
+			break
+		}
+
+		lflags := rctlblk_get_local_flags(unsafe.Pointer(rblk))
+		action := rctlblk_get_local_action(unsafe.Pointer(rblk), 0)
+		if (lflags&_RCTL_LOCAL_MAXIMAL) == 0 && action == _RCTL_LOCAL_DENY {
+			// This is a finite (not maximal) value representing a
+			// cap (deny) action.
+			v := rctlblk_get_value(unsafe.Pointer(rblk))
+			if capval == 0 || capval > v {
+				capval = v
+			}
+		}
+
+		// Swap the blocks around so that we can fetch the next value
+		t := rblk
+		rblk = rblkprev
+		rblkprev = t
+		flag = _RCTL_NEXT
+	}
+
+	return capval
+}
+
+func getncpu() int32 {
+	n := int32(sysconf(__SC_NPROCESSORS_ONLN))
+	if n < 1 {
+		return 1
+	}
+
+	if cents := int32(getcpucap()); cents > 0 {
+		// Convert from a percentage of CPUs to a number of CPUs,
+		// rounding up to make use of a fractional CPU
+		// e.g., 336% becomes 4 CPUs
+		ncap := (cents + 99) / 100
+		if ncap < n {
+			return ncap
+		}
+	}
+
+	return n
+}
+
+//extern getrctl
+func getrctl(controlname, oldbuf, newbuf unsafe.Pointer, flags uint32) int32
+
+//extern rctlblk_get_local_action
+func rctlblk_get_local_action(buf, signalp unsafe.Pointer) uint32
+
+//extern rctlblk_get_local_flags
+func rctlblk_get_local_flags(buf unsafe.Pointer) uint32
+
+//extern rctlblk_get_value
+func rctlblk_get_value(buf unsafe.Pointer) uint64
+
+//extern rctlblk_size
+func rclblk_size() uintptr
diff --git a/libgo/go/runtime/os_js.go b/libgo/go/runtime/os_js.go
index ad6db18..ff0ee3a 100644
--- a/libgo/go/runtime/os_js.go
+++ b/libgo/go/runtime/os_js.go
@@ -12,7 +12,7 @@
 
 func exit(code int32)
 
-func write(fd uintptr, p unsafe.Pointer, n int32) int32 {
+func write1(fd uintptr, p unsafe.Pointer, n int32) int32 {
 	if fd > 2 {
 		throw("runtime.write to fd > 2 is unsupported")
 	}
@@ -131,7 +131,6 @@
 func cputicks() int64 {
 	// Currently cputicks() is used in blocking profiler and to seed runtime·fastrand().
 	// runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
-	// TODO: need more entropy to better seed fastrand.
 	return nanotime()
 }
 
@@ -143,3 +142,9 @@
 
 // gsignalStack is unused on js.
 type gsignalStack struct{}
+
+const preemptMSupported = false
+
+func preemptM(mp *m) {
+	// No threads, so nothing to do.
+}
diff --git a/libgo/go/runtime/os_linux_arm.go b/libgo/go/runtime/os_linux_arm.go
index 8de9d11..0a90188 100644
--- a/libgo/go/runtime/os_linux_arm.go
+++ b/libgo/go/runtime/os_linux_arm.go
@@ -6,16 +6,8 @@
 
 import "internal/cpu"
 
-var randomNumber uint32
-
 func archauxv(tag, val uintptr) {
 	switch tag {
-	case _AT_RANDOM:
-		// sysargs filled in startupRandomData, but that
-		// pointer may not be word aligned, so we must treat
-		// it as a byte array.
-		randomNumber = uint32(startupRandomData[4]) | uint32(startupRandomData[5])<<8 |
-			uint32(startupRandomData[6])<<16 | uint32(startupRandomData[7])<<24
 	case _AT_HWCAP:
 		cpu.HWCap = uint(val)
 	case _AT_HWCAP2:
diff --git a/libgo/go/runtime/os_linux_arm64.go b/libgo/go/runtime/os_linux_arm64.go
index 30d63bf..a482d47 100644
--- a/libgo/go/runtime/os_linux_arm64.go
+++ b/libgo/go/runtime/os_linux_arm64.go
@@ -8,17 +8,8 @@
 
 import "internal/cpu"
 
-var randomNumber uint32
-
 func archauxv(tag, val uintptr) {
 	switch tag {
-	case _AT_RANDOM:
-		// sysargs filled in startupRandomData, but that
-		// pointer may not be word aligned, so we must treat
-		// it as a byte array.
-		randomNumber = uint32(startupRandomData[4]) | uint32(startupRandomData[5])<<8 |
-			uint32(startupRandomData[6])<<16 | uint32(startupRandomData[7])<<24
-
 	case _AT_HWCAP:
 		// arm64 doesn't have a 'cpuid' instruction equivalent and relies on
 		// HWCAP/HWCAP2 bits for hardware capabilities.
diff --git a/libgo/go/runtime/os_linux_mips64x.go b/libgo/go/runtime/os_linux_mips64x.go
index b7f737f..2b59dcb 100644
--- a/libgo/go/runtime/os_linux_mips64x.go
+++ b/libgo/go/runtime/os_linux_mips64x.go
@@ -7,15 +7,5 @@
 
 package runtime
 
-var randomNumber uint32
-
 func archauxv(tag, val uintptr) {
-	switch tag {
-	case _AT_RANDOM:
-		// sysargs filled in startupRandomData, but that
-		// pointer may not be word aligned, so we must treat
-		// it as a byte array.
-		randomNumber = uint32(startupRandomData[4]) | uint32(startupRandomData[5])<<8 |
-			uint32(startupRandomData[6])<<16 | uint32(startupRandomData[7])<<24
-	}
 }
diff --git a/libgo/go/runtime/os_linux_mipsx.go b/libgo/go/runtime/os_linux_mipsx.go
index a2696de..2bfd6f4 100644
--- a/libgo/go/runtime/os_linux_mipsx.go
+++ b/libgo/go/runtime/os_linux_mipsx.go
@@ -7,15 +7,5 @@
 
 package runtime
 
-var randomNumber uint32
-
 func archauxv(tag, val uintptr) {
-	switch tag {
-	case _AT_RANDOM:
-		// sysargs filled in startupRandomData, but that
-		// pointer may not be word aligned, so we must treat
-		// it as a byte array.
-		randomNumber = uint32(startupRandomData[4]) | uint32(startupRandomData[5])<<8 |
-			uint32(startupRandomData[6])<<16 | uint32(startupRandomData[7])<<24
-	}
 }
diff --git a/libgo/go/runtime/os_netbsd_arm64.go b/libgo/go/runtime/os_netbsd_arm64.go
index fd81eb7..8d21b0a 100644
--- a/libgo/go/runtime/os_netbsd_arm64.go
+++ b/libgo/go/runtime/os_netbsd_arm64.go
@@ -19,6 +19,5 @@
 func cputicks() int64 {
 	// Currently cputicks() is used in blocking profiler and to seed runtime·fastrand().
 	// runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
-	// TODO: need more entropy to better seed fastrand.
 	return nanotime()
 }
diff --git a/libgo/go/runtime/os_only_solaris.go b/libgo/go/runtime/os_only_solaris.go
new file mode 100644
index 0000000..e2f5409
--- /dev/null
+++ b/libgo/go/runtime/os_only_solaris.go
@@ -0,0 +1,18 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Solaris code that doesn't also apply to illumos.
+
+// +build !illumos
+
+package runtime
+
+func getncpu() int32 {
+	n := int32(sysconf(__SC_NPROCESSORS_ONLN))
+	if n < 1 {
+		return 1
+	}
+
+	return n
+}
diff --git a/libgo/go/runtime/os_openbsd_arm64.go b/libgo/go/runtime/os_openbsd_arm64.go
index f15a95b..d559a2a 100644
--- a/libgo/go/runtime/os_openbsd_arm64.go
+++ b/libgo/go/runtime/os_openbsd_arm64.go
@@ -12,7 +12,6 @@
 func cputicks() int64 {
 	// Currently cputicks() is used in blocking profiler and to seed runtime·fastrand().
 	// runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
-	// TODO: need more entropy to better seed fastrand.
 	return nanotime()
 }
 
diff --git a/libgo/go/runtime/panic.go b/libgo/go/runtime/panic.go
index 9667181..88c598e 100644
--- a/libgo/go/runtime/panic.go
+++ b/libgo/go/runtime/panic.go
@@ -50,7 +50,7 @@
 // pc should be the program counter of the compiler-generated code that
 // triggered this panic.
 func panicCheck1(pc uintptr, msg string) {
-	name, _, _, _ := funcfileline(pc-1, -1)
+	name, _, _, _ := funcfileline(pc-1, -1, false)
 	if hasPrefix(name, "runtime.") {
 		throw(msg)
 	}
@@ -548,6 +548,14 @@
 	// for detailed comments.
 	gp := getg()
 	gp.goexiting = true
+
+	// Create a panic object for Goexit, so we can recognize when it might be
+	// bypassed by a recover().
+	var p _panic
+	p.goexit = true
+	p.link = gp._panic
+	gp._panic = (*_panic)(noescape(unsafe.Pointer(&p)))
+
 	for {
 		d := gp._defer
 		if d == nil {
@@ -608,7 +616,12 @@
 func printpanics(p *_panic) {
 	if p.link != nil {
 		printpanics(p.link)
-		print("\t")
+		if !p.link.goexit {
+			print("\t")
+		}
+	}
+	if p.goexit {
+		return
 	}
 	print("panic: ")
 	printany(p.arg)
@@ -704,9 +717,12 @@
 		d._panic = nil
 
 		if p.recovered {
-			atomic.Xadd(&runningPanicDefers, -1)
-
 			gp._panic = p.link
+			if gp._panic != nil && gp._panic.goexit && gp._panic.aborted {
+				Goexit()
+				throw("Goexit returned")
+			}
+			atomic.Xadd(&runningPanicDefers, -1)
 
 			// Aborted panics are marked but remain on the g.panic list.
 			// Remove them from the list.
@@ -717,6 +733,11 @@
 				gp.sig = 0
 			}
 
+			if gp._panic != nil && gp._panic.goexit {
+				Goexit()
+				throw("Goexit returned")
+			}
+
 			// Unwind the stack by throwing an exception.
 			// The compiler has arranged to create
 			// exception handlers in each function
@@ -922,7 +943,7 @@
 func gorecover() interface{} {
 	gp := getg()
 	p := gp._panic
-	if p != nil && !p.recovered {
+	if p != nil && !p.goexit && !p.recovered {
 		p.recovered = true
 		return p.arg
 	}
diff --git a/libgo/go/runtime/pprof/label.go b/libgo/go/runtime/pprof/label.go
index 20f9cdb..2d92ef7 100644
--- a/libgo/go/runtime/pprof/label.go
+++ b/libgo/go/runtime/pprof/label.go
@@ -60,11 +60,11 @@
 	if len(args)%2 != 0 {
 		panic("uneven number of arguments to pprof.Labels")
 	}
-	labels := LabelSet{}
+	list := make([]label, 0, len(args)/2)
 	for i := 0; i+1 < len(args); i += 2 {
-		labels.list = append(labels.list, label{key: args[i], value: args[i+1]})
+		list = append(list, label{key: args[i], value: args[i+1]})
 	}
-	return labels
+	return LabelSet{list: list}
 }
 
 // Label returns the value of the label with the given key on ctx, and a boolean indicating
diff --git a/libgo/go/runtime/pprof/label_test.go b/libgo/go/runtime/pprof/label_test.go
index 240445f..de39d85 100644
--- a/libgo/go/runtime/pprof/label_test.go
+++ b/libgo/go/runtime/pprof/label_test.go
@@ -24,7 +24,7 @@
 func (s labelSorter) Less(i, j int) bool { return s[i].key < s[j].key }
 
 func TestContextLabels(t *testing.T) {
-	// Background context starts with no lablels.
+	// Background context starts with no labels.
 	ctx := context.Background()
 	labels := labelsSorted(ctx)
 	if len(labels) != 0 {
diff --git a/libgo/go/runtime/pprof/mprof_test.go b/libgo/go/runtime/pprof/mprof_test.go
index 6fe892b..c352dea 100644
--- a/libgo/go/runtime/pprof/mprof_test.go
+++ b/libgo/go/runtime/pprof/mprof_test.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build !js
+
 package pprof
 
 import (
@@ -10,6 +12,7 @@
 	"reflect"
 	"regexp"
 	"runtime"
+	"runtime/pprof/internal/profile"
 	"testing"
 	"unsafe"
 )
@@ -27,6 +30,10 @@
 	memSink = make([]byte, 2<<20)
 }
 
+func allocateTransient2MInline() {
+	memSink = make([]byte, 4<<20)
+}
+
 type Obj32 struct {
 	link *Obj32
 	pad  [32 - unsafe.Sizeof(uintptr(0))]byte
@@ -71,47 +78,102 @@
 	// Do the interesting allocations.
 	allocateTransient1M()
 	allocateTransient2M()
+	allocateTransient2MInline()
 	allocatePersistent1K()
 	allocateReflect()
 	memSink = nil
 
 	runtime.GC() // materialize stats
-	var buf bytes.Buffer
-	if err := Lookup("heap").WriteTo(&buf, 1); err != nil {
-		t.Fatalf("failed to write heap profile: %v", err)
-	}
 
 	memoryProfilerRun++
 
-	tests := []string{
-
-		fmt.Sprintf(`%v: %v \[%v: %v\] @ 0x[0-9,a-f x]+
-#	0x[0-9,a-f]+	pprof\.allocatePersistent1K\+0x[0-9,a-f]+	.*/mprof_test\.go:40
-#	0x[0-9,a-f]+	runtime/pprof\.TestMemoryProfiler\+0x[0-9,a-f]+	.*/mprof_test\.go:74
+	tests := []struct {
+		stk    []string
+		legacy string
+	}{{
+		stk: []string{"pprof.allocatePersistent1K", "runtime/pprof.TestMemoryProfiler"},
+		legacy: fmt.Sprintf(`%v: %v \[%v: %v\] @ 0x[0-9,a-f x]+
+#	0x[0-9,a-f]+	pprof\.allocatePersistent1K\+0x[0-9,a-f]+	.*/mprof_test\.go:47
+#	0x[0-9,a-f]+	runtime/pprof\.TestMemoryProfiler\+0x[0-9,a-f]+	.*/mprof_test\.go:82
 `, 32*memoryProfilerRun, 1024*memoryProfilerRun, 32*memoryProfilerRun, 1024*memoryProfilerRun),
-
-		fmt.Sprintf(`0: 0 \[%v: %v\] @ 0x[0-9,a-f x]+
-#	0x[0-9,a-f]+	pprof\.allocateTransient1M\+0x[0-9,a-f]+	.*/mprof_test.go:21
-#	0x[0-9,a-f]+	runtime/pprof\.TestMemoryProfiler\+0x[0-9,a-f]+	.*/mprof_test.go:72
-`, (1<<10)*memoryProfilerRun, (1<<20)*memoryProfilerRun),
-
+	}, {
+		stk: []string{"pprof.allocateTransient1M", "runtime/pprof.TestMemoryProfiler"},
+		legacy: fmt.Sprintf(`(0|%v): (0|%v) \[%v: %v\] @ 0x[0-9,a-f x]+
+#	0x[0-9,a-f]+	pprof\.allocateTransient1M\+0x[0-9,a-f]+	.*/mprof_test.go:24
+#	0x[0-9,a-f]+	runtime/pprof\.TestMemoryProfiler\+0x[0-9,a-f]+	.*/mprof_test.go:79
+`, (1<<10)*memoryProfilerRun, (1<<20)*memoryProfilerRun, (1<<10)*memoryProfilerRun, (1<<20)*memoryProfilerRun),
+	}, {
+		stk: []string{"pprof.allocateTransient2M", "runtime/pprof.TestMemoryProfiler"},
 		// This should start with "0: 0" but gccgo's imprecise
 		// GC means that sometimes the value is not collected.
-		fmt.Sprintf(`(0|%v): (0|%v) \[%v: %v\] @ 0x[0-9,a-f x]+
-#	0x[0-9,a-f]+	pprof\.allocateTransient2M\+0x[0-9,a-f]+	.*/mprof_test.go:27
-#	0x[0-9,a-f]+	runtime/pprof\.TestMemoryProfiler\+0x[0-9,a-f]+	.*/mprof_test.go:73
+		legacy: fmt.Sprintf(`(0|%v): (0|%v) \[%v: %v\] @ 0x[0-9,a-f x]+
+#	0x[0-9,a-f]+	pprof\.allocateTransient2M\+0x[0-9,a-f]+	.*/mprof_test.go:30
+#	0x[0-9,a-f]+	runtime/pprof\.TestMemoryProfiler\+0x[0-9,a-f]+	.*/mprof_test.go:80
 `, memoryProfilerRun, (2<<20)*memoryProfilerRun, memoryProfilerRun, (2<<20)*memoryProfilerRun),
-
-		// This should start with "0: 0" but gccgo's imprecise
-		// GC means that sometimes the value is not collected.
-		fmt.Sprintf(`(0|%v): (0|%v) \[%v: %v\] @( 0x[0-9,a-f]+)+
-#	0x[0-9,a-f]+	pprof\.allocateReflectTransient\+0x[0-9,a-f]+	.*/mprof_test.go:48
+	}, {
+		stk: []string{"pprof.allocateTransient2MInline", "runtime/pprof.TestMemoryProfiler"},
+		legacy: fmt.Sprintf(`(0|%v): (0|%v) \[%v: %v\] @ 0x[0-9,a-f x]+
+#	0x[0-9,a-f]+	pprof\.allocateTransient2MInline\+0x[0-9,a-f]+	.*/mprof_test.go:34
+#	0x[0-9,a-f]+	runtime/pprof\.TestMemoryProfiler\+0x[0-9,a-f]+	.*/mprof_test.go:81
+`, memoryProfilerRun, (4<<20)*memoryProfilerRun, memoryProfilerRun, (4<<20)*memoryProfilerRun),
+	}, {
+		stk: []string{"pprof.allocateReflectTransient"},
+		legacy: fmt.Sprintf(`(0|%v): (0|%v) \[%v: %v\] @( 0x[0-9,a-f]+)+
+#	0x[0-9,a-f]+	pprof\.allocateReflectTransient\+0x[0-9,a-f]+	.*/mprof_test.go:55
 `, memoryProfilerRun, (3<<20)*memoryProfilerRun, memoryProfilerRun, (3<<20)*memoryProfilerRun),
-	}
+	}}
 
-	for _, test := range tests {
-		if !regexp.MustCompile(test).Match(buf.Bytes()) {
-			t.Fatalf("The entry did not match:\n%v\n\nProfile:\n%v\n", test, buf.String())
+	t.Run("debug=1", func(t *testing.T) {
+		var buf bytes.Buffer
+		if err := Lookup("heap").WriteTo(&buf, 1); err != nil {
+			t.Fatalf("failed to write heap profile: %v", err)
 		}
-	}
+
+		for _, test := range tests {
+			if !regexp.MustCompile(test.legacy).Match(buf.Bytes()) {
+				t.Fatalf("The entry did not match:\n%v\n\nProfile:\n%v\n", test.legacy, buf.String())
+			}
+		}
+	})
+
+	t.Run("proto", func(t *testing.T) {
+		var buf bytes.Buffer
+		if err := Lookup("heap").WriteTo(&buf, 0); err != nil {
+			t.Fatalf("failed to write heap profile: %v", err)
+		}
+		p, err := profile.Parse(&buf)
+		if err != nil {
+			t.Fatalf("failed to parse heap profile: %v", err)
+		}
+		t.Logf("Profile = %v", p)
+
+		stks := stacks(p)
+		for _, test := range tests {
+			if !containsStack(stks, test.stk) {
+				t.Logf("stks:\n%v", stks)
+				t.Fatalf("No matching stack entry for %q\n\nProfile:\n%v\n", test.stk, p)
+			}
+		}
+
+		if !containsInlinedCall(TestMemoryProfiler, 4<<10) {
+			t.Logf("Can't determine whether allocateTransient2MInline was inlined into TestMemoryProfiler.")
+			return
+		}
+
+		// Check the inlined function location is encoded correctly.
+		for _, loc := range p.Location {
+			inlinedCaller, inlinedCallee := false, false
+			for _, line := range loc.Line {
+				if line.Function.Name == "runtime/pprof.allocateTransient2MInline" {
+					inlinedCallee = true
+				}
+				if inlinedCallee && line.Function.Name == "runtime/pprof.TestMemoryProfiler" {
+					inlinedCaller = true
+				}
+			}
+			if inlinedCallee != inlinedCaller {
+				t.Errorf("want allocateTransient2MInline after TestMemoryProfiler in one location, got separate location entries:\n%v", loc)
+			}
+		}
+	})
 }
diff --git a/libgo/go/runtime/pprof/pprof.go b/libgo/go/runtime/pprof/pprof.go
index 996b3cb..183881c 100644
--- a/libgo/go/runtime/pprof/pprof.go
+++ b/libgo/go/runtime/pprof/pprof.go
@@ -28,7 +28,7 @@
 //            if err != nil {
 //                log.Fatal("could not create CPU profile: ", err)
 //            }
-//            defer f.Close()
+//            defer f.Close() // error handling omitted for example
 //            if err := pprof.StartCPUProfile(f); err != nil {
 //                log.Fatal("could not start CPU profile: ", err)
 //            }
@@ -42,7 +42,7 @@
 //            if err != nil {
 //                log.Fatal("could not create memory profile: ", err)
 //            }
-//            defer f.Close()
+//            defer f.Close() // error handling omitted for example
 //            runtime.GC() // get up-to-date statistics
 //            if err := pprof.WriteHeapProfile(f); err != nil {
 //                log.Fatal("could not write memory profile: ", err)
@@ -386,16 +386,9 @@
 		count, nanosec := scaler(r.Count, float64(r.Cycles)/cpuGHz)
 		values[0] = count
 		values[1] = int64(nanosec)
-		locs = locs[:0]
-		for _, addr := range r.Stack() {
-			// For count profiles, all stack addresses are
-			// return PCs, which is what locForPC expects.
-			l := b.locForPC(addr)
-			if l == 0 { // runtime.goexit
-				continue
-			}
-			locs = append(locs, l)
-		}
+		// For count profiles, all stack addresses are
+		// return PCs, which is what appendLocsForStack expects.
+		locs = b.appendLocsForStack(locs[:0], r.Stack())
 		b.pbSample(values, locs, nil)
 	}
 	b.build()
@@ -451,16 +444,9 @@
 	var locs []uint64
 	for _, k := range keys {
 		values[0] = int64(count[k])
-		locs = locs[:0]
-		for _, addr := range p.Stack(index[k]) {
-			// For count profiles, all stack addresses are
-			// return PCs, which is what locForPC expects.
-			l := b.locForPC(addr)
-			if l == 0 { // runtime.goexit
-				continue
-			}
-			locs = append(locs, l)
-		}
+		// For count profiles, all stack addresses are
+		// return PCs, which is what appendLocsForStack expects.
+		locs = b.appendLocsForStack(locs[:0], p.Stack(index[k]))
 		b.pbSample(values, locs, nil)
 	}
 	b.build()
diff --git a/libgo/go/runtime/pprof/pprof_test.go b/libgo/go/runtime/pprof/pprof_test.go
index 49a555c..bba9ee3 100644
--- a/libgo/go/runtime/pprof/pprof_test.go
+++ b/libgo/go/runtime/pprof/pprof_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !nacl,!js
+// +build !js
 
 package pprof
 
@@ -49,8 +49,12 @@
 // Must not call other functions nor access heap/globals in the loop,
 // otherwise under race detector the samples will be in the race runtime.
 func cpuHog1(x int) int {
+	return cpuHog0(x, 1e5)
+}
+
+func cpuHog0(x, n int) int {
 	foo := x
-	for i := 0; i < 1e5; i++ {
+	for i := 0; i < n; i++ {
 		if foo > 0 {
 			foo *= foo
 		} else {
@@ -100,35 +104,111 @@
 	})
 }
 
+// containsInlinedCall reports whether the function body for the function f is
+// known to contain an inlined function call within the first maxBytes bytes.
+func containsInlinedCall(f interface{}, maxBytes int) bool {
+	_, found := findInlinedCall(f, maxBytes)
+	return found
+}
+
+// findInlinedCall returns the PC of an inlined function call within
+// the function body for the function f if any.
+func findInlinedCall(f interface{}, maxBytes int) (pc uint64, found bool) {
+	fFunc := runtime.FuncForPC(uintptr(funcPC(f)))
+	if fFunc == nil || fFunc.Entry() == 0 {
+		panic("failed to locate function entry")
+	}
+
+	for offset := 0; offset < maxBytes; offset++ {
+		innerPC := fFunc.Entry() + uintptr(offset)
+		inner := runtime.FuncForPC(innerPC)
+		if inner == nil {
+			// No function known for this PC value.
+			// It might simply be misaligned, so keep searching.
+			continue
+		}
+		if inner.Entry() != fFunc.Entry() {
+			// Scanned past f and didn't find any inlined functions.
+			break
+		}
+		if inner.Name() != fFunc.Name() {
+			// This PC has f as its entry-point, but is not f. Therefore, it must be a
+			// function inlined into f.
+			return uint64(innerPC), true
+		}
+	}
+
+	return 0, false
+}
+
 func TestCPUProfileInlining(t *testing.T) {
-	testCPUProfile(t, stackContains, []string{"pprof.inlinedCallee", "pprof.inlinedCaller"}, avoidFunctions(), func(dur time.Duration) {
+	if !containsInlinedCall(inlinedCaller, 4<<10) {
+		t.Skip("Can't determine whether inlinedCallee was inlined into inlinedCaller.")
+	}
+
+	p := testCPUProfile(t, stackContains, []string{"pprof.inlinedCallee", "pprof.inlinedCaller"}, avoidFunctions(), func(dur time.Duration) {
 		cpuHogger(inlinedCaller, &salt1, dur)
 	})
+
+	// Check if inlined function locations are encoded correctly. The inlinedCalee and inlinedCaller should be in one location.
+	for _, loc := range p.Location {
+		hasInlinedCallerAfterInlinedCallee, hasInlinedCallee := false, false
+		for _, line := range loc.Line {
+			if line.Function.Name == "runtime/pprof.inlinedCallee" {
+				hasInlinedCallee = true
+			}
+			if hasInlinedCallee && line.Function.Name == "runtime/pprof.inlinedCaller" {
+				hasInlinedCallerAfterInlinedCallee = true
+			}
+		}
+		if hasInlinedCallee != hasInlinedCallerAfterInlinedCallee {
+			t.Fatalf("want inlinedCallee followed by inlinedCaller, got separate Location entries:\n%v", p)
+		}
+	}
 }
 
 func inlinedCaller(x int) int {
-	x = inlinedCallee(x)
+	x = inlinedCallee(x, 1e5)
 	return x
 }
 
-func inlinedCallee(x int) int {
-	// We could just use cpuHog1, but for loops prevent inlining
-	// right now. :(
-	foo := x
-	i := 0
-loop:
-	if foo > 0 {
-		foo *= foo
-	} else {
-		foo *= foo + 1
-	}
-	if i++; i < 1e5 {
-		goto loop
-	}
-	return foo
+func inlinedCallee(x, n int) int {
+	return cpuHog0(x, n)
 }
 
-func parseProfile(t *testing.T, valBytes []byte, f func(uintptr, []*profile.Location, map[string][]string)) {
+func TestCPUProfileRecursion(t *testing.T) {
+	p := testCPUProfile(t, stackContains, []string{"runtime/pprof.inlinedCallee", "runtime/pprof.recursionCallee", "runtime/pprof.recursionCaller"}, avoidFunctions(), func(dur time.Duration) {
+		cpuHogger(recursionCaller, &salt1, dur)
+	})
+
+	// check the Location encoding was not confused by recursive calls.
+	for i, loc := range p.Location {
+		recursionFunc := 0
+		for _, line := range loc.Line {
+			if name := line.Function.Name; name == "runtime/pprof.recursionCaller" || name == "runtime/pprof.recursionCallee" {
+				recursionFunc++
+			}
+		}
+		if recursionFunc > 1 {
+			t.Fatalf("want at most one recursionCaller or recursionCallee in one Location, got a violating Location (index: %d):\n%v", i, p)
+		}
+	}
+}
+
+func recursionCaller(x int) int {
+	y := recursionCallee(3, x)
+	return y
+}
+
+func recursionCallee(n, x int) int {
+	if n == 0 {
+		return 1
+	}
+	y := inlinedCallee(x, 1e4)
+	return y * recursionCallee(n-1, x)
+}
+
+func parseProfile(t *testing.T, valBytes []byte, f func(uintptr, []*profile.Location, map[string][]string)) *profile.Profile {
 	p, err := profile.Parse(bytes.NewReader(valBytes))
 	if err != nil {
 		t.Fatal(err)
@@ -137,11 +217,12 @@
 		count := uintptr(sample.Value[0])
 		f(count, sample.Location, sample.Label)
 	}
+	return p
 }
 
 // testCPUProfile runs f under the CPU profiler, checking for some conditions specified by need,
-// as interpreted by matches.
-func testCPUProfile(t *testing.T, matches matchFunc, need []string, avoid []string, f func(dur time.Duration)) {
+// as interpreted by matches, and returns the parsed profile.
+func testCPUProfile(t *testing.T, matches matchFunc, need []string, avoid []string, f func(dur time.Duration)) *profile.Profile {
 	switch runtime.GOOS {
 	case "darwin":
 		switch runtime.GOARCH {
@@ -195,8 +276,8 @@
 		f(duration)
 		StopCPUProfile()
 
-		if profileOk(t, matches, need, avoid, prof, duration) {
-			return
+		if p, ok := profileOk(t, matches, need, avoid, prof, duration); ok {
+			return p
 		}
 
 		duration *= 2
@@ -217,6 +298,7 @@
 		t.Skip("ignore the failure in QEMU; see golang.org/issue/9605")
 	}
 	t.FailNow()
+	return nil
 }
 
 func contains(slice []string, s string) bool {
@@ -242,7 +324,7 @@
 
 type matchFunc func(spec string, count uintptr, stk []*profile.Location, labels map[string][]string) bool
 
-func profileOk(t *testing.T, matches matchFunc, need []string, avoid []string, prof bytes.Buffer, duration time.Duration) (ok bool) {
+func profileOk(t *testing.T, matches matchFunc, need []string, avoid []string, prof bytes.Buffer, duration time.Duration) (_ *profile.Profile, ok bool) {
 	ok = true
 
 	// Check that profile is well formed, contains 'need', and does not contain
@@ -251,7 +333,7 @@
 	avoidSamples := make([]uintptr, len(avoid))
 	var samples uintptr
 	var buf bytes.Buffer
-	parseProfile(t, prof.Bytes(), func(count uintptr, stk []*profile.Location, labels map[string][]string) {
+	p := parseProfile(t, prof.Bytes(), func(count uintptr, stk []*profile.Location, labels map[string][]string) {
 		fmt.Fprintf(&buf, "%d:", count)
 		fprintStack(&buf, stk)
 		samples += count
@@ -287,7 +369,7 @@
 		// not enough samples due to coarse timer
 		// resolution. Let it go.
 		t.Log("too few samples on Windows (golang.org/issue/10842)")
-		return false
+		return p, false
 	}
 
 	// Check that we got a reasonable number of samples.
@@ -309,7 +391,7 @@
 	}
 
 	if len(need) == 0 {
-		return ok
+		return p, ok
 	}
 
 	var total uintptr
@@ -332,7 +414,7 @@
 			ok = false
 		}
 	}
-	return ok
+	return p, ok
 }
 
 // Fork can hang if preempted with signals frequently enough (see issue 5517).
@@ -1076,3 +1158,111 @@
 		runtime.Stack(buf, true)
 	}
 }
+
+// TestTryAdd tests the cases that's hard to test with real program execution.
+// For example, the current go compilers may not inline functions involved in recursion
+// but that may not be true in the future compilers. This tests such cases by
+// using fake call sequences and forcing the profile build utilizing
+// translateCPUProfile defined in proto_test.go
+func TestTryAdd(t *testing.T) {
+	inlinedCallerPtr := uint64(funcPC(inlinedCaller)) + 1
+	inlinedCalleePtr, found := findInlinedCall(inlinedCaller, 4<<10)
+	if !found {
+		t.Skip("Can't determine whether inlinedCallee was inlined into inlinedCaller.")
+	}
+	inlinedCalleePtr += 1 // +1 to be safely inside of the function body.
+
+	period := int64(2000 * 1000) // 1/500*1e9 nanosec.
+
+	testCases := []struct {
+		name        string
+		input       []uint64          // following the input format assumed by profileBuilder.addCPUData.
+		wantLocs    [][]string        // ordered location entries with function names.
+		wantSamples []*profile.Sample // ordered samples, we care only about Value and the profile location IDs.
+	}{{
+		name: "bug35538",
+		input: []uint64{
+			3, 0, 500, // hz = 500. Must match the period.
+			7, 0, 10, inlinedCalleePtr, inlinedCallerPtr, inlinedCalleePtr, inlinedCallerPtr,
+			5, 0, 20, inlinedCalleePtr, inlinedCallerPtr,
+		},
+		wantLocs: [][]string{{"runtime/pprof.inlinedCallee", "runtime/pprof.inlinedCaller"}},
+		wantSamples: []*profile.Sample{
+			{Value: []int64{10, 10 * period}, Location: []*profile.Location{{ID: 1}, {ID: 1}}},
+			{Value: []int64{20, 20 * period}, Location: []*profile.Location{{ID: 1}}},
+		},
+	}, {
+		name: "recursive_inlined_funcs",
+		input: []uint64{
+			3, 0, 500, // hz = 500. Must match the period.
+			5, 0, 30, inlinedCalleePtr, inlinedCalleePtr,
+			4, 0, 40, inlinedCalleePtr,
+		},
+		wantLocs: [][]string{{"runtime/pprof.inlinedCallee"}},
+		wantSamples: []*profile.Sample{
+			{Value: []int64{30, 30 * period}, Location: []*profile.Location{{ID: 1}, {ID: 1}}},
+			{Value: []int64{40, 40 * period}, Location: []*profile.Location{{ID: 1}}},
+		},
+	}, {
+		name: "truncated_stack_trace_later",
+		input: []uint64{
+			3, 0, 500, // hz = 500. Must match the period.
+			5, 0, 50, inlinedCalleePtr, inlinedCallerPtr,
+			4, 0, 60, inlinedCalleePtr,
+		},
+		wantLocs: [][]string{{"runtime/pprof.inlinedCallee", "runtime/pprof.inlinedCaller"}},
+		wantSamples: []*profile.Sample{
+			{Value: []int64{50, 50 * period}, Location: []*profile.Location{{ID: 1}}},
+			{Value: []int64{60, 60 * period}, Location: []*profile.Location{{ID: 1}}},
+		},
+	}, {
+		name: "truncated_stack_trace_first",
+		input: []uint64{
+			3, 0, 500, // hz = 500. Must match the period.
+			4, 0, 70, inlinedCalleePtr,
+			5, 0, 80, inlinedCalleePtr, inlinedCallerPtr,
+		},
+		wantLocs: [][]string{ // the inline info is screwed up, but better than a crash.
+			{"runtime/pprof.inlinedCallee"},
+			{"runtime/pprof.inlinedCaller"}},
+		wantSamples: []*profile.Sample{
+			{Value: []int64{70, 70 * period}, Location: []*profile.Location{{ID: 1}}},
+			{Value: []int64{80, 80 * period}, Location: []*profile.Location{{ID: 1}, {ID: 2}}},
+		},
+	}}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			p, err := translateCPUProfile(tc.input)
+			if err != nil {
+				t.Fatalf("translating profile: %v", err)
+			}
+			t.Logf("Profile: %v\n", p)
+
+			// One location entry with all inlined functions.
+			var gotLoc [][]string
+			for _, loc := range p.Location {
+				var names []string
+				for _, line := range loc.Line {
+					names = append(names, line.Function.Name)
+				}
+				gotLoc = append(gotLoc, names)
+			}
+			if got, want := fmtJSON(gotLoc), fmtJSON(tc.wantLocs); got != want {
+				t.Errorf("Got Location = %+v\n\twant %+v", got, want)
+			}
+			// All samples should point to one location.
+			var gotSamples []*profile.Sample
+			for _, sample := range p.Sample {
+				var locs []*profile.Location
+				for _, loc := range sample.Location {
+					locs = append(locs, &profile.Location{ID: loc.ID})
+				}
+				gotSamples = append(gotSamples, &profile.Sample{Value: sample.Value, Location: locs})
+			}
+			if got, want := fmtJSON(gotSamples), fmtJSON(tc.wantSamples); got != want {
+				t.Errorf("Got Samples = %+v\n\twant %+v", got, want)
+			}
+		})
+	}
+}
diff --git a/libgo/go/runtime/pprof/proto.go b/libgo/go/runtime/pprof/proto.go
index ef3eeb1..ba5db85 100644
--- a/libgo/go/runtime/pprof/proto.go
+++ b/libgo/go/runtime/pprof/proto.go
@@ -54,9 +54,10 @@
 	pb        protobuf
 	strings   []string
 	stringMap map[string]int
-	locs      map[uintptr]int
-	funcs     map[string]int // Package path-qualified function name to Function.ID
+	locs      map[uintptr]locInfo // list of locInfo starting with the given PC.
+	funcs     map[string]int      // Package path-qualified function name to Function.ID
 	mem       []memMap
+	deck      pcDeck
 }
 
 type memMap struct {
@@ -220,15 +221,7 @@
 	b.pb.endMessage(tag, start)
 }
 
-// locForPC returns the location ID for addr.
-// addr must a return PC or 1 + the PC of an inline marker. This returns the location of the corresponding call.
-// It may emit to b.pb, so there must be no message encoding in progress.
-func (b *profileBuilder) locForPC(addr uintptr) uint64 {
-	id := uint64(b.locs[addr])
-	if id != 0 {
-		return id
-	}
-
+func allFrames(addr uintptr) ([]runtime.Frame, symbolizeFlag) {
 	// Expand this one address using CallersFrames so we can cache
 	// each expansion. In general, CallersFrames takes a whole
 	// stack, but in this case we know there will be no skips in
@@ -238,7 +231,7 @@
 	if frame.Function == "runtime.goexit" || frame.Function == "runtime.kickoff" {
 		// Short-circuit if we see runtime.goexit so the loop
 		// below doesn't allocate a useless empty location.
-		return 0
+		return nil, 0
 	}
 
 	symbolizeResult := lookupTried
@@ -251,59 +244,22 @@
 		// a reasonable call PC. This mostly happens in tests.
 		frame.PC = addr - 1
 	}
-
-	// We can't write out functions while in the middle of the
-	// Location message, so record new functions we encounter and
-	// write them out after the Location.
-	type newFunc struct {
-		id         uint64
-		name, file string
-	}
-	newFuncs := make([]newFunc, 0, 8)
-
-	id = uint64(len(b.locs)) + 1
-	b.locs[addr] = int(id)
-	start := b.pb.startMessage()
-	b.pb.uint64Opt(tagLocation_ID, id)
-	b.pb.uint64Opt(tagLocation_Address, uint64(frame.PC))
-	for frame.Function != "runtime.goexit" && frame.Function != "runtime.kickoff" {
-		// Write out each line in frame expansion.
-		funcID := uint64(b.funcs[frame.Function])
-		if funcID == 0 {
-			funcID = uint64(len(b.funcs)) + 1
-			b.funcs[frame.Function] = int(funcID)
-			newFuncs = append(newFuncs, newFunc{funcID, frame.Function, frame.File})
-		}
-		b.pbLine(tagLocation_Line, funcID, int64(frame.Line))
-		if !more {
-			break
-		}
+	ret := []runtime.Frame{frame}
+	for frame.Function != "runtime.goexit" && frame.Function != "runtime.kickoff" && more == true {
 		frame, more = frames.Next()
+		ret = append(ret, frame)
 	}
-	for i := range b.mem {
-		if b.mem[i].start <= addr && addr < b.mem[i].end || b.mem[i].fake {
-			b.pb.uint64Opt(tagLocation_MappingID, uint64(i+1))
+	return ret, symbolizeResult
+}
 
-			m := b.mem[i]
-			m.funcs |= symbolizeResult
-			b.mem[i] = m
-			break
-		}
-	}
-	b.pb.endMessage(tagProfile_Location, start)
+type locInfo struct {
+	// location id assigned by the profileBuilder
+	id uint64
 
-	// Write out functions we found during frame expansion.
-	for _, fn := range newFuncs {
-		start := b.pb.startMessage()
-		b.pb.uint64Opt(tagFunction_ID, fn.id)
-		b.pb.int64Opt(tagFunction_Name, b.stringIndex(fn.name))
-		b.pb.int64Opt(tagFunction_SystemName, b.stringIndex(fn.name))
-		b.pb.int64Opt(tagFunction_Filename, b.stringIndex(fn.file))
-		b.pb.endMessage(tagProfile_Function, start)
-	}
-
-	b.flush()
-	return id
+	// sequence of PCs, including the fake PCs returned by the traceback
+	// to represent inlined functions
+	// https://github.com/golang/go/blob/d6f2f833c93a41ec1c68e49804b8387a06b131c5/src/runtime/traceback.go#L347-L368
+	pcs []uintptr
 }
 
 // newProfileBuilder returns a new profileBuilder.
@@ -318,7 +274,7 @@
 		start:     time.Now(),
 		strings:   []string{""},
 		stringMap: map[string]int{"": 0},
-		locs:      map[uintptr]int{},
+		locs:      map[uintptr]locInfo{},
 		funcs:     map[string]int{},
 	}
 	b.readMapping()
@@ -402,6 +358,7 @@
 
 	values := []int64{0, 0}
 	var locs []uint64
+
 	for e := b.m.all; e != nil; e = e.nextAll {
 		values[0] = e.count
 		values[1] = e.count * b.period
@@ -415,23 +372,8 @@
 			}
 		}
 
-		locs = locs[:0]
-		for i, addr := range e.stk {
-			// Addresses from stack traces point to the
-			// next instruction after each call, except
-			// for the leaf, which points to where the
-			// signal occurred. locForPC expects return
-			// PCs, so increment the leaf address to look
-			// like a return PC.
-			if i == 0 {
-				addr++
-			}
-			l := b.locForPC(addr)
-			if l == 0 { // runtime.goexit
-				continue
-			}
-			locs = append(locs, l)
-		}
+		locs = b.appendLocsForStack(locs[:0], e.stk)
+
 		b.pbSample(values, locs, labels)
 	}
 
@@ -448,6 +390,203 @@
 	b.zw.Close()
 }
 
+// appendLocsForStack appends the location IDs for the given stack trace to the given
+// location ID slice, locs. The addresses in the stack are return PCs or 1 + the PC of
+// an inline marker as the runtime traceback function returns.
+//
+// It may emit to b.pb, so there must be no message encoding in progress.
+func (b *profileBuilder) appendLocsForStack(locs []uint64, stk []uintptr) (newLocs []uint64) {
+	b.deck.reset()
+	for len(stk) > 0 {
+		addr := stk[0]
+		if l, ok := b.locs[addr]; ok {
+			// first record the location if there is any pending accumulated info.
+			if id := b.emitLocation(); id > 0 {
+				locs = append(locs, id)
+			}
+
+			// then, record the cached location.
+			locs = append(locs, l.id)
+
+			// The stk may be truncated due to the stack depth limit
+			// (e.g. See maxStack and maxCPUProfStack in runtime) or
+			// bugs in runtime. Avoid the crash in either case.
+			// TODO(hyangah): The correct fix may require using the exact
+			// pcs as the key for b.locs cache management instead of just
+			// relying on the very first pc. We are late in the go1.14 dev
+			// cycle, so this is a workaround with little code change.
+			if len(l.pcs) > len(stk) {
+				stk = nil
+				// TODO(hyangah): would be nice if we can enable
+				// debug print out on demand and report the problematic
+				// cached location entry and stack traces. Do we already
+				// have such facility to utilize (e.g. GODEBUG)?
+			} else {
+				stk = stk[len(l.pcs):] // skip the matching pcs.
+			}
+			continue
+		}
+
+		frames, symbolizeResult := allFrames(addr)
+		if len(frames) == 0 { // runtime.goexit.
+			if id := b.emitLocation(); id > 0 {
+				locs = append(locs, id)
+			}
+			stk = stk[1:]
+			continue
+		}
+
+		if added := b.deck.tryAdd(addr, frames, symbolizeResult); added {
+			stk = stk[1:]
+			continue
+		}
+		// add failed because this addr is not inlined with
+		// the existing PCs in the deck. Flush the deck and retry to
+		// handle this pc.
+		if id := b.emitLocation(); id > 0 {
+			locs = append(locs, id)
+		}
+
+		// check cache again - previous emitLocation added a new entry
+		if l, ok := b.locs[addr]; ok {
+			locs = append(locs, l.id)
+			stk = stk[len(l.pcs):] // skip the matching pcs.
+		} else {
+			b.deck.tryAdd(addr, frames, symbolizeResult) // must succeed.
+			stk = stk[1:]
+		}
+	}
+	if id := b.emitLocation(); id > 0 { // emit remaining location.
+		locs = append(locs, id)
+	}
+	return locs
+}
+
+// pcDeck is a helper to detect a sequence of inlined functions from
+// a stack trace returned by the runtime.
+//
+// The stack traces returned by runtime's trackback functions are fully
+// expanded (at least for Go functions) and include the fake pcs representing
+// inlined functions. The profile proto expects the inlined functions to be
+// encoded in one Location message.
+// https://github.com/google/pprof/blob/5e965273ee43930341d897407202dd5e10e952cb/proto/profile.proto#L177-L184
+//
+// Runtime does not directly expose whether a frame is for an inlined function
+// and looking up debug info is not ideal, so we use a heuristic to filter
+// the fake pcs and restore the inlined and entry functions. Inlined functions
+// have the following properties:
+//   Frame's Func is nil (note: also true for non-Go functions), and
+//   Frame's Entry matches its entry function frame's Entry. (note: could also be true for recursive calls and non-Go functions),
+//   Frame's Name does not match its entry function frame's name.
+//
+// As reading and processing the pcs in a stack trace one by one (from leaf to the root),
+// we use pcDeck to temporarily hold the observed pcs and their expanded frames
+// until we observe the entry function frame.
+type pcDeck struct {
+	pcs             []uintptr
+	frames          []runtime.Frame
+	symbolizeResult symbolizeFlag
+}
+
+func (d *pcDeck) reset() {
+	d.pcs = d.pcs[:0]
+	d.frames = d.frames[:0]
+	d.symbolizeResult = 0
+}
+
+// tryAdd tries to add the pc and Frames expanded from it (most likely one,
+// since the stack trace is already fully expanded) and the symbolizeResult
+// to the deck. If it fails the caller needs to flush the deck and retry.
+func (d *pcDeck) tryAdd(pc uintptr, frames []runtime.Frame, symbolizeResult symbolizeFlag) (success bool) {
+	if existing := len(d.pcs); existing > 0 {
+		// 'frames' are all expanded from one 'pc' and represent all inlined functions
+		// so we check only the last one.
+		newFrame := frames[0]
+		last := d.frames[existing-1]
+		if last.Func != nil { // the last frame can't be inlined. Flush.
+			return false
+		}
+		if last.Entry == 0 || newFrame.Entry == 0 { // Possibly not a Go function. Don't try to merge.
+			return false
+		}
+
+		if last.Entry != newFrame.Entry { // newFrame is for a different function.
+			return false
+		}
+		if last.Function == newFrame.Function { // maybe recursion.
+			return false
+		}
+	}
+	d.pcs = append(d.pcs, pc)
+	d.frames = append(d.frames, frames...)
+	d.symbolizeResult |= symbolizeResult
+	return true
+}
+
+// emitLocation emits the new location and function information recorded in the deck
+// and returns the location ID encoded in the profile protobuf.
+// It emits to b.pb, so there must be no message encoding in progress.
+// It resets the deck.
+func (b *profileBuilder) emitLocation() uint64 {
+	if len(b.deck.pcs) == 0 {
+		return 0
+	}
+	defer b.deck.reset()
+
+	addr := b.deck.pcs[0]
+	firstFrame := b.deck.frames[0]
+
+	// We can't write out functions while in the middle of the
+	// Location message, so record new functions we encounter and
+	// write them out after the Location.
+	type newFunc struct {
+		id         uint64
+		name, file string
+	}
+	newFuncs := make([]newFunc, 0, 8)
+
+	id := uint64(len(b.locs)) + 1
+	b.locs[addr] = locInfo{id: id, pcs: append([]uintptr{}, b.deck.pcs...)}
+
+	start := b.pb.startMessage()
+	b.pb.uint64Opt(tagLocation_ID, id)
+	b.pb.uint64Opt(tagLocation_Address, uint64(firstFrame.PC))
+	for _, frame := range b.deck.frames {
+		// Write out each line in frame expansion.
+		funcID := uint64(b.funcs[frame.Function])
+		if funcID == 0 {
+			funcID = uint64(len(b.funcs)) + 1
+			b.funcs[frame.Function] = int(funcID)
+			newFuncs = append(newFuncs, newFunc{funcID, frame.Function, frame.File})
+		}
+		b.pbLine(tagLocation_Line, funcID, int64(frame.Line))
+	}
+	for i := range b.mem {
+		if b.mem[i].start <= addr && addr < b.mem[i].end || b.mem[i].fake {
+			b.pb.uint64Opt(tagLocation_MappingID, uint64(i+1))
+
+			m := b.mem[i]
+			m.funcs |= b.deck.symbolizeResult
+			b.mem[i] = m
+			break
+		}
+	}
+	b.pb.endMessage(tagProfile_Location, start)
+
+	// Write out functions we found during frame expansion.
+	for _, fn := range newFuncs {
+		start := b.pb.startMessage()
+		b.pb.uint64Opt(tagFunction_ID, fn.id)
+		b.pb.int64Opt(tagFunction_Name, b.stringIndex(fn.name))
+		b.pb.int64Opt(tagFunction_SystemName, b.stringIndex(fn.name))
+		b.pb.int64Opt(tagFunction_Filename, b.stringIndex(fn.file))
+		b.pb.endMessage(tagProfile_Function, start)
+	}
+
+	b.flush()
+	return id
+}
+
 // readMapping reads /proc/self/maps and writes mappings to b.pb.
 // It saves the address ranges of the mappings in b.mem for use
 // when emitting locations.
diff --git a/libgo/go/runtime/pprof/proto_test.go b/libgo/go/runtime/pprof/proto_test.go
index 7e7c7cc..67d6b5d 100644
--- a/libgo/go/runtime/pprof/proto_test.go
+++ b/libgo/go/runtime/pprof/proto_test.go
@@ -118,9 +118,9 @@
 
 	b := []uint64{
 		3, 0, 500, // hz = 500
-		5, 0, 10, uint64(addr1), uint64(addr1 + 2), // 10 samples in addr1
-		5, 0, 40, uint64(addr2), uint64(addr2 + 2), // 40 samples in addr2
-		5, 0, 10, uint64(addr1), uint64(addr1 + 2), // 10 samples in addr1
+		5, 0, 10, uint64(addr1 + 1), uint64(addr1 + 2), // 10 samples in addr1
+		5, 0, 40, uint64(addr2 + 1), uint64(addr2 + 2), // 40 samples in addr2
+		5, 0, 10, uint64(addr1 + 1), uint64(addr1 + 2), // 10 samples in addr1
 	}
 	p, err := translateCPUProfile(b)
 	if err != nil {
@@ -360,6 +360,17 @@
 					continue
 				}
 			}
+
+			if traceback == "Go+C" {
+				// The test code was arranged to have PCs from C and
+				// they are not symbolized.
+				// Check no Location containing those unsymbolized PCs contains multiple lines.
+				for i, loc := range prof.Location {
+					if !symbolized(loc) && len(loc.Line) > 1 {
+						t.Errorf("Location[%d] contains unsymbolized PCs and multiple lines: %v", i, loc)
+					}
+				}
+			}
 		})
 	}
 }
diff --git a/libgo/go/runtime/pprof/protomem.go b/libgo/go/runtime/pprof/protomem.go
index 1c88aae..fa75a28 100644
--- a/libgo/go/runtime/pprof/protomem.go
+++ b/libgo/go/runtime/pprof/protomem.go
@@ -27,30 +27,27 @@
 	values := []int64{0, 0, 0, 0}
 	var locs []uint64
 	for _, r := range p {
-		locs = locs[:0]
 		hideRuntime := true
 		for tries := 0; tries < 2; tries++ {
-			for _, addr := range r.Stack() {
-				// For heap profiles, all stack
-				// addresses are return PCs, which is
-				// what locForPC expects.
-				if hideRuntime {
+			stk := r.Stack()
+			// For heap profiles, all stack
+			// addresses are return PCs, which is
+			// what appendLocsForStack expects.
+			if hideRuntime {
+				for i, addr := range stk {
 					if f := runtime.FuncForPC(addr); f != nil && strings.HasPrefix(f.Name(), "runtime.") {
 						continue
 					}
 					// Found non-runtime. Show any runtime uses above it.
-					hideRuntime = false
+					stk = stk[i:]
+					break
 				}
-				l := b.locForPC(addr)
-				if l == 0 { // runtime.goexit
-					continue
-				}
-				locs = append(locs, l)
 			}
+			locs = b.appendLocsForStack(locs[:0], stk)
 			if len(locs) > 0 {
 				break
 			}
-			hideRuntime = false // try again, and show all frames
+			hideRuntime = false // try again, and show all frames next time.
 		}
 
 		values[0], values[1] = scaleHeapSample(r.AllocObjects, r.AllocBytes, rate)
diff --git a/libgo/go/runtime/pprof/testdata/README b/libgo/go/runtime/pprof/testdata/README
new file mode 100644
index 0000000..876538e
--- /dev/null
+++ b/libgo/go/runtime/pprof/testdata/README
@@ -0,0 +1,9 @@
+These binaries were generated by:
+
+$ cat empty.s
+.global _start
+_start:
+$ as --32 -o empty.o empty.s && ld  --build-id -m elf_i386 -o test32 empty.o
+$ as --64 -o empty.o empty.s && ld --build-id -o test64 empty.o
+$ powerpc-linux-gnu-as -o empty.o empty.s && powerpc-linux-gnu-ld --build-id -o test32be empty.o
+$ powerpc64-linux-gnu-as -o empty.o empty.s && powerpc64-linux-gnu-ld --build-id -o test64be empty.o
diff --git a/libgo/go/runtime/pprof/testdata/mappingtest/main.go b/libgo/go/runtime/pprof/testdata/mappingtest/main.go
index 476b9e8..484b7f9 100644
--- a/libgo/go/runtime/pprof/testdata/mappingtest/main.go
+++ b/libgo/go/runtime/pprof/testdata/mappingtest/main.go
@@ -17,8 +17,7 @@
 int cpuHogCSalt1 = 0;
 int cpuHogCSalt2 = 0;
 
-void CPUHogCFunction() {
-	int foo = cpuHogCSalt1;
+void CPUHogCFunction0(int foo) {
 	int i;
 	for (i = 0; i < 100000; i++) {
 		if (foo > 0) {
@@ -30,6 +29,10 @@
 	}
 }
 
+void CPUHogCFunction() {
+	CPUHogCFunction0(cpuHogCSalt1);
+}
+
 struct CgoTracebackArg {
 	uintptr_t context;
         uintptr_t sigContext;
@@ -39,8 +42,9 @@
 
 void CollectCgoTraceback(void* parg) {
         struct CgoTracebackArg* arg = (struct CgoTracebackArg*)(parg);
-	arg->buf[0] = (uintptr_t)(CPUHogCFunction);
-	arg->buf[1] = 0;
+	arg->buf[0] = (uintptr_t)(CPUHogCFunction0);
+	arg->buf[1] = (uintptr_t)(CPUHogCFunction);
+	arg->buf[2] = 0;
 };
 */
 import "C"
@@ -81,7 +85,6 @@
 var salt2 int
 
 func cpuHogGoFunction() {
-	// Generates CPU profile samples including a Go call path.
 	for {
 		foo := salt1
 		for i := 0; i < 1e5; i++ {
diff --git a/libgo/go/runtime/pprof/testdata/test32 b/libgo/go/runtime/pprof/testdata/test32
new file mode 100755
index 0000000..ce59472
--- /dev/null
+++ b/libgo/go/runtime/pprof/testdata/test32
Binary files differ
diff --git a/libgo/go/runtime/pprof/testdata/test32be b/libgo/go/runtime/pprof/testdata/test32be
new file mode 100755
index 0000000..f13a732
--- /dev/null
+++ b/libgo/go/runtime/pprof/testdata/test32be
Binary files differ
diff --git a/libgo/go/runtime/pprof/testdata/test64 b/libgo/go/runtime/pprof/testdata/test64
new file mode 100755
index 0000000..3fb42fb
--- /dev/null
+++ b/libgo/go/runtime/pprof/testdata/test64
Binary files differ
diff --git a/libgo/go/runtime/pprof/testdata/test64be b/libgo/go/runtime/pprof/testdata/test64be
new file mode 100755
index 0000000..09b4b01
--- /dev/null
+++ b/libgo/go/runtime/pprof/testdata/test64be
Binary files differ
diff --git a/libgo/go/runtime/preempt.go b/libgo/go/runtime/preempt.go
new file mode 100644
index 0000000..1a8f9ac
--- /dev/null
+++ b/libgo/go/runtime/preempt.go
@@ -0,0 +1,370 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Goroutine preemption
+//
+// A goroutine can be preempted at any safe-point. Currently, there
+// are a few categories of safe-points:
+//
+// 1. A blocked safe-point occurs for the duration that a goroutine is
+//    descheduled, blocked on synchronization, or in a system call.
+//
+// 2. Synchronous safe-points occur when a running goroutine checks
+//    for a preemption request.
+//
+// 3. Asynchronous safe-points occur at any instruction in user code
+//    where the goroutine can be safely paused and a conservative
+//    stack and register scan can find stack roots. The runtime can
+//    stop a goroutine at an async safe-point using a signal.
+//
+// At both blocked and synchronous safe-points, a goroutine's CPU
+// state is minimal and the garbage collector has complete information
+// about its entire stack. This makes it possible to deschedule a
+// goroutine with minimal space, and to precisely scan a goroutine's
+// stack.
+//
+// Synchronous safe-points are implemented by overloading the stack
+// bound check in function prologues. To preempt a goroutine at the
+// next synchronous safe-point, the runtime poisons the goroutine's
+// stack bound to a value that will cause the next stack bound check
+// to fail and enter the stack growth implementation, which will
+// detect that it was actually a preemption and redirect to preemption
+// handling.
+//
+// Preemption at asynchronous safe-points is implemented by suspending
+// the thread using an OS mechanism (e.g., signals) and inspecting its
+// state to determine if the goroutine was at an asynchronous
+// safe-point. Since the thread suspension itself is generally
+// asynchronous, it also checks if the running goroutine wants to be
+// preempted, since this could have changed. If all conditions are
+// satisfied, it adjusts the signal context to make it look like the
+// signaled thread just called asyncPreempt and resumes the thread.
+// asyncPreempt spills all registers and enters the scheduler.
+//
+// (An alternative would be to preempt in the signal handler itself.
+// This would let the OS save and restore the register state and the
+// runtime would only need to know how to extract potentially
+// pointer-containing registers from the signal context. However, this
+// would consume an M for every preempted G, and the scheduler itself
+// is not designed to run from a signal handler, as it tends to
+// allocate memory and start threads in the preemption path.)
+
+package runtime
+
+import (
+	"runtime/internal/atomic"
+)
+
+type suspendGState struct {
+	g *g
+
+	// dead indicates the goroutine was not suspended because it
+	// is dead. This goroutine could be reused after the dead
+	// state was observed, so the caller must not assume that it
+	// remains dead.
+	dead bool
+
+	// stopped indicates that this suspendG transitioned the G to
+	// _Gwaiting via g.preemptStop and thus is responsible for
+	// readying it when done.
+	stopped bool
+}
+
+// suspendG suspends goroutine gp at a safe-point and returns the
+// state of the suspended goroutine. The caller gets read access to
+// the goroutine until it calls resumeG.
+//
+// It is safe for multiple callers to attempt to suspend the same
+// goroutine at the same time. The goroutine may execute between
+// subsequent successful suspend operations. The current
+// implementation grants exclusive access to the goroutine, and hence
+// multiple callers will serialize. However, the intent is to grant
+// shared read access, so please don't depend on exclusive access.
+//
+// This must be called from the system stack and the user goroutine on
+// the current M (if any) must be in a preemptible state. This
+// prevents deadlocks where two goroutines attempt to suspend each
+// other and both are in non-preemptible states. There are other ways
+// to resolve this deadlock, but this seems simplest.
+//
+// TODO(austin): What if we instead required this to be called from a
+// user goroutine? Then we could deschedule the goroutine while
+// waiting instead of blocking the thread. If two goroutines tried to
+// suspend each other, one of them would win and the other wouldn't
+// complete the suspend until it was resumed. We would have to be
+// careful that they couldn't actually queue up suspend for each other
+// and then both be suspended. This would also avoid the need for a
+// kernel context switch in the synchronous case because we could just
+// directly schedule the waiter. The context switch is unavoidable in
+// the signal case.
+//
+//go:systemstack
+func suspendG(gp *g) suspendGState {
+	if mp := getg().m; mp.curg != nil && readgstatus(mp.curg) == _Grunning {
+		// Since we're on the system stack of this M, the user
+		// G is stuck at an unsafe point. If another goroutine
+		// were to try to preempt m.curg, it could deadlock.
+		throw("suspendG from non-preemptible goroutine")
+	}
+
+	// See https://golang.org/cl/21503 for justification of the yield delay.
+	const yieldDelay = 10 * 1000
+	var nextYield int64
+
+	// Drive the goroutine to a preemption point.
+	stopped := false
+	var asyncM *m
+	var asyncGen uint32
+	var nextPreemptM int64
+	for i := 0; ; i++ {
+		switch s := readgstatus(gp); s {
+		default:
+			if s&_Gscan != 0 {
+				// Someone else is suspending it. Wait
+				// for them to finish.
+				//
+				// TODO: It would be nicer if we could
+				// coalesce suspends.
+				break
+			}
+
+			dumpgstatus(gp)
+			throw("invalid g status")
+
+		case _Gdead:
+			// Nothing to suspend.
+			//
+			// preemptStop may need to be cleared, but
+			// doing that here could race with goroutine
+			// reuse. Instead, goexit0 clears it.
+			return suspendGState{dead: true}
+
+		case _Gcopystack:
+			// The stack is being copied. We need to wait
+			// until this is done.
+
+		case _Gexitingsyscall:
+			// This is a transient state.  Try again.
+
+		case _Gpreempted:
+			// We (or someone else) suspended the G. Claim
+			// ownership of it by transitioning it to
+			// _Gwaiting.
+			if !casGFromPreempted(gp, _Gpreempted, _Gwaiting) {
+				break
+			}
+
+			// We stopped the G, so we have to ready it later.
+			stopped = true
+
+			s = _Gwaiting
+			fallthrough
+
+		case _Grunnable, _Gsyscall, _Gwaiting:
+			// Claim goroutine by setting scan bit.
+			// This may race with execution or readying of gp.
+			// The scan bit keeps it from transition state.
+			if !castogscanstatus(gp, s, s|_Gscan) {
+				break
+			}
+
+			// Clear the preemption request. It's safe to
+			// reset the stack guard because we hold the
+			// _Gscan bit and thus own the stack.
+			gp.preemptStop = false
+			gp.preempt = false
+
+			// The goroutine was already at a safe-point
+			// and we've now locked that in.
+			//
+			// TODO: It would be much better if we didn't
+			// leave it in _Gscan, but instead gently
+			// prevented its scheduling until resumption.
+			// Maybe we only use this to bump a suspended
+			// count and the scheduler skips suspended
+			// goroutines? That wouldn't be enough for
+			// {_Gsyscall,_Gwaiting} -> _Grunning. Maybe
+			// for all those transitions we need to check
+			// suspended and deschedule?
+			return suspendGState{g: gp, stopped: stopped}
+
+		case _Grunning:
+			// Optimization: if there is already a pending preemption request
+			// (from the previous loop iteration), don't bother with the atomics.
+			if asyncM != nil && gp.preemptStop && gp.preempt && asyncM == gp.m && atomic.Load(&asyncM.preemptGen) == asyncGen {
+				break
+			}
+
+			// Temporarily block state transitions.
+			if !castogscanstatus(gp, _Grunning, _Gscanrunning) {
+				break
+			}
+
+			// Request synchronous preemption.
+			gp.preemptStop = true
+			gp.preempt = true
+
+			// Prepare for asynchronous preemption.
+			asyncM2 := gp.m
+			asyncGen2 := atomic.Load(&asyncM2.preemptGen)
+			needAsync := asyncM != asyncM2 || asyncGen != asyncGen2
+			asyncM = asyncM2
+			asyncGen = asyncGen2
+
+			casfrom_Gscanstatus(gp, _Gscanrunning, _Grunning)
+
+			// Send asynchronous preemption. We do this
+			// after CASing the G back to _Grunning
+			// because preemptM may be synchronous and we
+			// don't want to catch the G just spinning on
+			// its status.
+			if preemptMSupported && debug.asyncpreemptoff == 0 && needAsync {
+				// Rate limit preemptM calls. This is
+				// particularly important on Windows
+				// where preemptM is actually
+				// synchronous and the spin loop here
+				// can lead to live-lock.
+				now := nanotime()
+				if now >= nextPreemptM {
+					nextPreemptM = now + yieldDelay/2
+					preemptM(asyncM)
+				}
+			}
+		}
+
+		// TODO: Don't busy wait. This loop should really only
+		// be a simple read/decide/CAS loop that only fails if
+		// there's an active race. Once the CAS succeeds, we
+		// should queue up the preemption (which will require
+		// it to be reliable in the _Grunning case, not
+		// best-effort) and then sleep until we're notified
+		// that the goroutine is suspended.
+		if i == 0 {
+			nextYield = nanotime() + yieldDelay
+		}
+		if nanotime() < nextYield {
+			procyield(10)
+		} else {
+			osyield()
+			nextYield = nanotime() + yieldDelay/2
+		}
+	}
+}
+
+// resumeG undoes the effects of suspendG, allowing the suspended
+// goroutine to continue from its current safe-point.
+func resumeG(state suspendGState) {
+	if state.dead {
+		// We didn't actually stop anything.
+		return
+	}
+
+	gp := state.g
+	switch s := readgstatus(gp); s {
+	default:
+		dumpgstatus(gp)
+		throw("unexpected g status")
+
+	case _Grunnable | _Gscan,
+		_Gwaiting | _Gscan,
+		_Gsyscall | _Gscan:
+		casfrom_Gscanstatus(gp, s, s&^_Gscan)
+	}
+
+	if state.stopped {
+		// We stopped it, so we need to re-schedule it.
+		ready(gp, 0, true)
+	}
+}
+
+// canPreemptM reports whether mp is in a state that is safe to preempt.
+//
+// It is nosplit because it has nosplit callers.
+//
+//go:nosplit
+func canPreemptM(mp *m) bool {
+	return mp.locks == 0 && mp.mallocing == 0 && mp.preemptoff == "" && mp.p.ptr().status == _Prunning
+}
+
+//go:generate go run mkpreempt.go
+
+// asyncPreempt saves all user registers and calls asyncPreempt2.
+//
+// When stack scanning encounters an asyncPreempt frame, it scans that
+// frame and its parent frame conservatively.
+//
+// asyncPreempt is implemented in assembly.
+func asyncPreempt()
+
+//go:nosplit
+func asyncPreempt2() {
+	gp := getg()
+	gp.asyncSafePoint = true
+	if gp.preemptStop {
+		mcall(preemptPark)
+	} else {
+		mcall(gopreempt_m)
+	}
+	gp.asyncSafePoint = false
+}
+
+// wantAsyncPreempt returns whether an asynchronous preemption is
+// queued for gp.
+func wantAsyncPreempt(gp *g) bool {
+	// Check both the G and the P.
+	return (gp.preempt || gp.m.p != 0 && gp.m.p.ptr().preempt) && readgstatus(gp)&^_Gscan == _Grunning
+}
+
+// isAsyncSafePoint reports whether gp at instruction PC is an
+// asynchronous safe point. This indicates that:
+//
+// 1. It's safe to suspend gp and conservatively scan its stack and
+// registers. There are no potentially hidden pointer values and it's
+// not in the middle of an atomic sequence like a write barrier.
+//
+// 2. gp has enough stack space to inject the asyncPreempt call.
+//
+// 3. It's generally safe to interact with the runtime, even if we're
+// in a signal handler stopped here. For example, there are no runtime
+// locks held, so acquiring a runtime lock won't self-deadlock.
+func isAsyncSafePoint(gp *g, pc uintptr) bool {
+	mp := gp.m
+
+	// Only user Gs can have safe-points. We check this first
+	// because it's extremely common that we'll catch mp in the
+	// scheduler processing this G preemption.
+	if mp.curg != gp {
+		return false
+	}
+
+	// Check M state.
+	if mp.p == 0 || !canPreemptM(mp) {
+		return false
+	}
+
+	// Check if PC is an unsafe-point.
+	f := FuncForPC(pc)
+	if f == nil {
+		// Not Go code.
+		return false
+	}
+	name := f.Name()
+	if hasPrefix(name, "runtime.") ||
+		hasPrefix(name, "runtime..z2finternal..z2f") ||
+		hasPrefix(name, "reflect.") {
+		// For now we never async preempt the runtime or
+		// anything closely tied to the runtime. Known issues
+		// include: various points in the scheduler ("don't
+		// preempt between here and here"), much of the defer
+		// implementation (untyped info on stack), bulk write
+		// barriers (write barrier check),
+		// reflect.{makeFuncStub,methodValueCall}.
+		//
+		// TODO(austin): We should improve this, or opt things
+		// in incrementally.
+		return false
+	}
+
+	return true
+}
diff --git a/libgo/go/runtime/proc.go b/libgo/go/runtime/proc.go
index a025137..c0e8577 100644
--- a/libgo/go/runtime/proc.go
+++ b/libgo/go/runtime/proc.go
@@ -548,6 +548,7 @@
 	usestackmaps = probestackmaps()
 
 	mallocinit()
+	fastrandinit() // must run before mcommoninit
 	mcommoninit(_g_.m)
 	cpuinit() // must run before alginit
 	alginit() // maps must not be used before this call
@@ -622,8 +623,8 @@
 	sched.mnext++
 	checkmcount()
 
-	mp.fastrand[0] = 1597334677 * uint32(mp.id)
-	mp.fastrand[1] = uint32(cputicks())
+	mp.fastrand[0] = uint32(int64Hash(uint64(mp.id), fastrandseed))
+	mp.fastrand[1] = uint32(int64Hash(uint64(cputicks()), ^fastrandseed))
 	if mp.fastrand[0]|mp.fastrand[1] == 0 {
 		mp.fastrand[1] = 1
 	}
@@ -640,6 +641,13 @@
 	unlock(&sched.lock)
 }
 
+var fastrandseed uintptr
+
+func fastrandinit() {
+	s := (*[unsafe.Sizeof(fastrandseed)]byte)(unsafe.Pointer(&fastrandseed))[:]
+	getRandomData(s)
+}
+
 // Mark gp ready to run.
 func ready(gp *g, traceskip int, next bool) {
 	if trace.enabled {
@@ -704,18 +712,6 @@
 	return atomic.Load(&gp.atomicstatus)
 }
 
-// Ownership of gcscanvalid:
-//
-// If gp is running (meaning status == _Grunning or _Grunning|_Gscan),
-// then gp owns gp.gcscanvalid, and other goroutines must not modify it.
-//
-// Otherwise, a second goroutine can lock the scan state by setting _Gscan
-// in the status bit and then modify gcscanvalid, and then unlock the scan state.
-//
-// Note that the first condition implies an exception to the second:
-// if a second goroutine changes gp's status to _Grunning|_Gscan,
-// that second goroutine still does not have the right to modify gcscanvalid.
-
 // The Gscanstatuses are acting like locks and this releases them.
 // If it proves to be a performance hit we should be able to make these
 // simple atomic stores but for now we are going to throw if
@@ -732,7 +728,8 @@
 	case _Gscanrunnable,
 		_Gscanwaiting,
 		_Gscanrunning,
-		_Gscansyscall:
+		_Gscansyscall,
+		_Gscanpreempted:
 		if newval == oldval&^_Gscan {
 			success = atomic.Cas(&gp.atomicstatus, oldval, newval)
 		}
@@ -774,17 +771,6 @@
 		})
 	}
 
-	if oldval == _Grunning && gp.gcscanvalid {
-		// If oldvall == _Grunning, then the actual status must be
-		// _Grunning or _Grunning|_Gscan; either way,
-		// we own gp.gcscanvalid, so it's safe to read.
-		// gp.gcscanvalid must not be true when we are running.
-		systemstack(func() {
-			print("runtime: casgstatus ", hex(oldval), "->", hex(newval), " gp.status=", hex(gp.atomicstatus), " gp.gcscanvalid=true\n")
-			throw("casgstatus")
-		})
-	}
-
 	// See https://golang.org/cl/21503 for justification of the yield delay.
 	const yieldDelay = 5 * 1000
 	var nextYield int64
@@ -795,14 +781,6 @@
 		if oldval == _Gwaiting && gp.atomicstatus == _Grunnable {
 			throw("casgstatus: waiting for Gwaiting but is Grunnable")
 		}
-		// Help GC if needed.
-		// if gp.preemptscan && !gp.gcworkdone && (oldval == _Grunning || oldval == _Gsyscall) {
-		// 	gp.preemptscan = false
-		// 	systemstack(func() {
-		// 		gcphasework(gp)
-		// 	})
-		// }
-		// But meanwhile just yield.
 		if i == 0 {
 			nextYield = nanotime() + yieldDelay
 		}
@@ -815,174 +793,28 @@
 			nextYield = nanotime() + yieldDelay/2
 		}
 	}
-	if newval == _Grunning {
-		gp.gcscanvalid = false
+}
+
+// casGToPreemptScan transitions gp from _Grunning to _Gscan|_Gpreempted.
+//
+// TODO(austin): This is the only status operation that both changes
+// the status and locks the _Gscan bit. Rethink this.
+func casGToPreemptScan(gp *g, old, new uint32) {
+	if old != _Grunning || new != _Gscan|_Gpreempted {
+		throw("bad g transition")
+	}
+	for !atomic.Cas(&gp.atomicstatus, _Grunning, _Gscan|_Gpreempted) {
 	}
 }
 
-// scang blocks until gp's stack has been scanned.
-// It might be scanned by scang or it might be scanned by the goroutine itself.
-// Either way, the stack scan has completed when scang returns.
-func scang(gp *g, gcw *gcWork) {
-	// Invariant; we (the caller, markroot for a specific goroutine) own gp.gcscandone.
-	// Nothing is racing with us now, but gcscandone might be set to true left over
-	// from an earlier round of stack scanning (we scan twice per GC).
-	// We use gcscandone to record whether the scan has been done during this round.
-
-	gp.gcscandone = false
-
-	// See https://golang.org/cl/21503 for justification of the yield delay.
-	const yieldDelay = 10 * 1000
-	var nextYield int64
-
-	// Endeavor to get gcscandone set to true,
-	// either by doing the stack scan ourselves or by coercing gp to scan itself.
-	// gp.gcscandone can transition from false to true when we're not looking
-	// (if we asked for preemption), so any time we lock the status using
-	// castogscanstatus we have to double-check that the scan is still not done.
-loop:
-	for i := 0; !gp.gcscandone; i++ {
-		switch s := readgstatus(gp); s {
-		default:
-			dumpgstatus(gp)
-			throw("stopg: invalid status")
-
-		case _Gdead:
-			// No stack.
-			gp.gcscandone = true
-			break loop
-
-		case _Gcopystack:
-		// Stack being switched. Go around again.
-
-		case _Gsyscall:
-			if usestackmaps {
-				// Claim goroutine by setting scan bit.
-				// Racing with execution or readying of gp.
-				// The scan bit keeps them from running
-				// the goroutine until we're done.
-				if castogscanstatus(gp, s, s|_Gscan) {
-					if gp.scanningself {
-						// Don't try to scan the stack
-						// if the goroutine is going to do
-						// it itself.
-						// FIXME: can this happen?
-						restartg(gp)
-						break
-					}
-					if !gp.gcscandone {
-						// Send a signal to let the goroutine scan
-						// itself. This races with enter/exitsyscall.
-						// If the goroutine is not stopped at a safepoint,
-						// it will not scan the stack and we'll try again.
-						mp := gp.m
-						noteclear(&mp.scannote)
-						gp.scangcw = uintptr(unsafe.Pointer(gcw))
-						tgkill(getpid(), _pid_t(mp.procid), _SIGURG)
-
-						// Wait for gp to scan its own stack.
-						notesleep(&mp.scannote)
-
-						if !gp.gcscandone {
-							// The signal delivered at a bad time.
-							// Try again.
-							restartg(gp)
-							break
-						}
-					}
-					restartg(gp)
-					break loop
-				}
-				break
-			}
-			fallthrough
-
-		case _Grunnable, _Gwaiting:
-			// Claim goroutine by setting scan bit.
-			// Racing with execution or readying of gp.
-			// The scan bit keeps them from running
-			// the goroutine until we're done.
-			if castogscanstatus(gp, s, s|_Gscan) {
-				if gp.scanningself {
-					// Don't try to scan the stack
-					// if the goroutine is going to do
-					// it itself.
-					restartg(gp)
-					break
-				}
-				if !gp.gcscandone {
-					scanstack(gp, gcw)
-					gp.gcscandone = true
-				}
-				restartg(gp)
-				break loop
-			}
-
-		case _Gexitingsyscall:
-			// This is a transient state during which we should not scan its stack.
-			// Try again.
-
-		case _Gscanwaiting:
-			// newstack is doing a scan for us right now. Wait.
-
-		case _Gscanrunning:
-			// checkPreempt is scanning. Wait.
-
-		case _Grunning:
-			// Goroutine running. Try to preempt execution so it can scan itself.
-			// The preemption handler (in newstack) does the actual scan.
-
-			// Optimization: if there is already a pending preemption request
-			// (from the previous loop iteration), don't bother with the atomics.
-			if gp.preemptscan && gp.preempt {
-				break
-			}
-
-			// Ask for preemption and self scan.
-			if castogscanstatus(gp, _Grunning, _Gscanrunning) {
-				if !gp.gcscandone {
-					gp.preemptscan = true
-					gp.preempt = true
-				}
-				casfrom_Gscanstatus(gp, _Gscanrunning, _Grunning)
-			}
-		}
-
-		if i == 0 {
-			nextYield = nanotime() + yieldDelay
-		}
-		if nanotime() < nextYield {
-			procyield(10)
-		} else {
-			osyield()
-			nextYield = nanotime() + yieldDelay/2
-		}
+// casGFromPreempted attempts to transition gp from _Gpreempted to
+// _Gwaiting. If successful, the caller is responsible for
+// re-scheduling gp.
+func casGFromPreempted(gp *g, old, new uint32) bool {
+	if old != _Gpreempted || new != _Gwaiting {
+		throw("bad g transition")
 	}
-
-	gp.preemptscan = false // cancel scan request if no longer needed
-}
-
-// The GC requests that this routine be moved from a scanmumble state to a mumble state.
-func restartg(gp *g) {
-	if gp.scang != 0 || gp.scangcw != 0 {
-		print("g ", gp.goid, "is being scanned scang=", gp.scang, " scangcw=", gp.scangcw, "\n")
-		throw("restartg: being scanned")
-	}
-
-	s := readgstatus(gp)
-	switch s {
-	default:
-		dumpgstatus(gp)
-		throw("restartg: unexpected status")
-
-	case _Gdead:
-	// ok
-
-	case _Gscanrunnable,
-		_Gscanwaiting,
-		_Gscansyscall:
-		casfrom_Gscanstatus(gp, s, s&^_Gscan)
-	}
+	return atomic.Cas(&gp.atomicstatus, _Gpreempted, _Gwaiting)
 }
 
 // stopTheWorld stops all P's from executing goroutines, interrupting
@@ -1001,8 +833,23 @@
 // goroutines.
 func stopTheWorld(reason string) {
 	semacquire(&worldsema)
-	getg().m.preemptoff = reason
-	systemstack(stopTheWorldWithSema)
+	gp := getg()
+	gp.m.preemptoff = reason
+	systemstack(func() {
+		// Mark the goroutine which called stopTheWorld preemptible so its
+		// stack may be scanned.
+		// This lets a mark worker scan us while we try to stop the world
+		// since otherwise we could get in a mutual preemption deadlock.
+		// We must not modify anything on the G stack because a stack shrink
+		// may occur. A stack shrink is otherwise OK though because in order
+		// to return from this function (and to leave the system stack) we
+		// must have preempted all goroutines, including any attempting
+		// to scan our stack, in which case, any stack shrinking will
+		// have already completed by the time we exit.
+		casgstatus(gp, _Grunning, _Gwaiting)
+		stopTheWorldWithSema()
+		casgstatus(gp, _Gwaiting, _Grunning)
+	})
 }
 
 // startTheWorld undoes the effects of stopTheWorld.
@@ -1014,10 +861,31 @@
 	getg().m.preemptoff = ""
 }
 
-// Holding worldsema grants an M the right to try to stop the world
-// and prevents gomaxprocs from changing concurrently.
+// stopTheWorldGC has the same effect as stopTheWorld, but blocks
+// until the GC is not running. It also blocks a GC from starting
+// until startTheWorldGC is called.
+func stopTheWorldGC(reason string) {
+	semacquire(&gcsema)
+	stopTheWorld(reason)
+}
+
+// startTheWorldGC undoes the effects of stopTheWorldGC.
+func startTheWorldGC() {
+	startTheWorld()
+	semrelease(&gcsema)
+}
+
+// Holding worldsema grants an M the right to try to stop the world.
 var worldsema uint32 = 1
 
+// Holding gcsema grants the M the right to block a GC, and blocks
+// until the current GC is done. In particular, it prevents gomaxprocs
+// from changing concurrently.
+//
+// TODO(mknyszek): Once gomaxprocs and the execution tracer can handle
+// being changed/enabled during a GC, remove this.
+var gcsema uint32 = 1
+
 // stopTheWorldWithSema is the core implementation of stopTheWorld.
 // The caller is responsible for acquiring worldsema and disabling
 // preemption first and then should stopTheWorldWithSema on the system
@@ -1119,7 +987,7 @@
 func startTheWorldWithSema(emitTraceEvent bool) int64 {
 	mp := acquirem() // disable preemption because it can be holding p in a local var
 	if netpollinited() {
-		list := netpoll(false) // non-blocking
+		list := netpoll(0) // non-blocking
 		injectglist(&list)
 	}
 	lock(&sched.lock)
@@ -1299,6 +1167,11 @@
 	// Free the gsignal stack.
 	if m.gsignal != nil {
 		stackfree(m.gsignal)
+		// On some platforms, when calling into VDSO (e.g. nanotime)
+		// we store our g on the gsignal stack, if there is one.
+		// Now the stack is freed, unlink it from the m, so we
+		// won't write to it when calling VDSO code.
+		m.gsignal = nil
 	}
 
 	// Remove m from allm.
@@ -1637,8 +1510,6 @@
 	// the goroutine stack ends.
 	mp, g0SP, g0SPSize := allocm(nil, nil, true)
 	gp := malg(true, false, nil, nil)
-	gp.gcscanvalid = true
-	gp.gcscandone = true
 	// malg returns status as _Gidle. Change to _Gdead before
 	// adding to allg where GC can see it. We use _Gdead to hide
 	// this from tracebacks and stack scans since it isn't a
@@ -1704,6 +1575,7 @@
 
 	// Return mp.curg to dead state.
 	casgstatus(mp.curg, _Gsyscall, _Gdead)
+	mp.curg.preemptStop = false
 	atomic.Xadd(&sched.ngsys, +1)
 
 	// Block signals before unminit.
@@ -2034,6 +1906,9 @@
 		startm(_p_, false)
 		return
 	}
+	if when := nobarrierWakeTime(_p_); when != 0 {
+		wakeNetPoller(when)
+	}
 	pidleput(_p_)
 	unlock(&sched.lock)
 }
@@ -2135,14 +2010,16 @@
 func execute(gp *g, inheritTime bool) {
 	_g_ := getg()
 
+	// Assign gp.m before entering _Grunning so running Gs have an
+	// M.
+	_g_.m.curg = gp
+	gp.m = _g_.m
 	casgstatus(gp, _Grunnable, _Grunning)
 	gp.waitsince = 0
 	gp.preempt = false
 	if !inheritTime {
 		_g_.m.p.ptr().schedtick++
 	}
-	_g_.m.curg = gp
-	gp.m = _g_.m
 
 	// Check whether the profiler needs to be turned on or off.
 	hz := sched.profilehz
@@ -2163,7 +2040,7 @@
 }
 
 // Finds a runnable goroutine to execute.
-// Tries to steal from other P's, get g from global queue, poll network.
+// Tries to steal from other P's, get g from local or global queue, poll network.
 func findrunnable() (gp *g, inheritTime bool) {
 	_g_ := getg()
 
@@ -2180,6 +2057,9 @@
 	if _p_.runSafePointFn != 0 {
 		runSafePointFn()
 	}
+
+	now, pollUntil, _ := checkTimers(_p_, 0)
+
 	if fingwait && fingwake {
 		if gp := wakefing(); gp != nil {
 			ready(gp, 0, true)
@@ -2212,7 +2092,7 @@
 	// not set lastpoll yet), this thread will do blocking netpoll below
 	// anyway.
 	if netpollinited() && atomic.Load(&netpollWaiters) > 0 && atomic.Load64(&sched.lastpoll) != 0 {
-		if list := netpoll(false); !list.empty() { // non-blocking
+		if list := netpoll(0); !list.empty() { // non-blocking
 			gp := list.pop()
 			injectglist(&list)
 			casgstatus(gp, _Gwaiting, _Grunnable)
@@ -2225,12 +2105,7 @@
 
 	// Steal work from other P's.
 	procs := uint32(gomaxprocs)
-	if atomic.Load(&sched.npidle) == procs-1 {
-		// Either GOMAXPROCS=1 or everybody, except for us, is idle already.
-		// New work can appear from returning syscall/cgocall, network or timers.
-		// Neither of that submits to local run queues, so no point in stealing.
-		goto stop
-	}
+	ranTimer := false
 	// If number of spinning M's >= number of busy P's, block.
 	// This is necessary to prevent excessive CPU consumption
 	// when GOMAXPROCS>>1 but the program parallelism is low.
@@ -2247,11 +2122,48 @@
 				goto top
 			}
 			stealRunNextG := i > 2 // first look for ready queues with more than 1 g
-			if gp := runqsteal(_p_, allp[enum.position()], stealRunNextG); gp != nil {
+			p2 := allp[enum.position()]
+			if _p_ == p2 {
+				continue
+			}
+			if gp := runqsteal(_p_, p2, stealRunNextG); gp != nil {
 				return gp, false
 			}
+
+			// Consider stealing timers from p2.
+			// This call to checkTimers is the only place where
+			// we hold a lock on a different P's timers.
+			// Lock contention can be a problem here, so avoid
+			// grabbing the lock if p2 is running and not marked
+			// for preemption. If p2 is running and not being
+			// preempted we assume it will handle its own timers.
+			if i > 2 && shouldStealTimers(p2) {
+				tnow, w, ran := checkTimers(p2, now)
+				now = tnow
+				if w != 0 && (pollUntil == 0 || w < pollUntil) {
+					pollUntil = w
+				}
+				if ran {
+					// Running the timers may have
+					// made an arbitrary number of G's
+					// ready and added them to this P's
+					// local run queue. That invalidates
+					// the assumption of runqsteal
+					// that is always has room to add
+					// stolen G's. So check now if there
+					// is a local G to run.
+					if gp, inheritTime := runqget(_p_); gp != nil {
+						return gp, inheritTime
+					}
+					ranTimer = true
+				}
+			}
 		}
 	}
+	if ranTimer {
+		// Running a timer may have made some goroutine ready.
+		goto top
+	}
 
 stop:
 
@@ -2268,10 +2180,16 @@
 		return gp, false
 	}
 
+	delta := int64(-1)
+	if pollUntil != 0 {
+		// checkTimers ensures that polluntil > now.
+		delta = pollUntil - now
+	}
+
 	// wasm only:
 	// If a callback returned and no other goroutine is awake,
 	// then pause execution until a callback was triggered.
-	if beforeIdle() {
+	if beforeIdle(delta) {
 		// At least one goroutine got woken.
 		goto top
 	}
@@ -2359,21 +2277,35 @@
 	}
 
 	// poll network
-	if netpollinited() && atomic.Load(&netpollWaiters) > 0 && atomic.Xchg64(&sched.lastpoll, 0) != 0 {
+	if netpollinited() && (atomic.Load(&netpollWaiters) > 0 || pollUntil != 0) && atomic.Xchg64(&sched.lastpoll, 0) != 0 {
+		atomic.Store64(&sched.pollUntil, uint64(pollUntil))
 		if _g_.m.p != 0 {
 			throw("findrunnable: netpoll with p")
 		}
 		if _g_.m.spinning {
 			throw("findrunnable: netpoll with spinning")
 		}
-		list := netpoll(true) // block until new work is available
+		if faketime != 0 {
+			// When using fake time, just poll.
+			delta = 0
+		}
+		list := netpoll(delta) // block until new work is available
+		atomic.Store64(&sched.pollUntil, 0)
 		atomic.Store64(&sched.lastpoll, uint64(nanotime()))
-		if !list.empty() {
-			lock(&sched.lock)
-			_p_ = pidleget()
-			unlock(&sched.lock)
-			if _p_ != nil {
-				acquirep(_p_)
+		if faketime != 0 && list.empty() {
+			// Using fake time and nothing is ready; stop M.
+			// When all M's stop, checkdead will call timejump.
+			stopm()
+			goto top
+		}
+		lock(&sched.lock)
+		_p_ = pidleget()
+		unlock(&sched.lock)
+		if _p_ == nil {
+			injectglist(&list)
+		} else {
+			acquirep(_p_)
+			if !list.empty() {
 				gp := list.pop()
 				injectglist(&list)
 				casgstatus(gp, _Gwaiting, _Grunnable)
@@ -2382,7 +2314,16 @@
 				}
 				return gp, false
 			}
-			injectglist(&list)
+			if wasSpinning {
+				_g_.m.spinning = true
+				atomic.Xadd(&sched.nmspinning, 1)
+			}
+			goto top
+		}
+	} else if pollUntil != 0 && netpollinited() {
+		pollerPollUntil := int64(atomic.Load64(&sched.pollUntil))
+		if pollerPollUntil == 0 || pollerPollUntil > pollUntil {
+			netpollBreak()
 		}
 	}
 	stopm()
@@ -2402,7 +2343,7 @@
 		return true
 	}
 	if netpollinited() && atomic.Load(&netpollWaiters) > 0 && sched.lastpoll != 0 {
-		if list := netpoll(false); !list.empty() {
+		if list := netpoll(0); !list.empty() {
 			injectglist(&list)
 			return true
 		}
@@ -2410,6 +2351,22 @@
 	return false
 }
 
+// wakeNetPoller wakes up the thread sleeping in the network poller,
+// if there is one, and if it isn't going to wake up anyhow before
+// the when argument.
+func wakeNetPoller(when int64) {
+	if atomic.Load64(&sched.lastpoll) == 0 {
+		// In findrunnable we ensure that when polling the pollUntil
+		// field is either zero or the time to which the current
+		// poll is expected to run. This can have a spurious wakeup
+		// but should never miss a wakeup.
+		pollerPollUntil := int64(atomic.Load64(&sched.pollUntil))
+		if pollerPollUntil == 0 || pollerPollUntil > when {
+			netpollBreak()
+		}
+	}
+}
+
 func resetspinning() {
 	_g_ := getg()
 	if !_g_.m.spinning {
@@ -2474,14 +2431,26 @@
 	}
 
 top:
+	pp := _g_.m.p.ptr()
+	pp.preempt = false
+
 	if sched.gcwaiting != 0 {
 		gcstopm()
 		goto top
 	}
-	if _g_.m.p.ptr().runSafePointFn != 0 {
+	if pp.runSafePointFn != 0 {
 		runSafePointFn()
 	}
 
+	// Sanity check: if we are spinning, the run queue should be empty.
+	// Check this before calling checkTimers, as that might call
+	// goready to put a ready goroutine on the local run queue.
+	if _g_.m.spinning && (pp.runnext != 0 || pp.runqhead != pp.runqtail) {
+		throw("schedule: spinning with local work")
+	}
+
+	checkTimers(pp, 0)
+
 	var gp *g
 	var inheritTime bool
 
@@ -2513,9 +2482,8 @@
 	}
 	if gp == nil {
 		gp, inheritTime = runqget(_g_.m.p.ptr())
-		if gp != nil && _g_.m.spinning {
-			throw("schedule: spinning with local work")
-		}
+		// We can see gp != nil here even if the M is spinning,
+		// if checkTimers added a local goroutine via goready.
 
 		// Because gccgo does not implement preemption as a stack check,
 		// we need to check for preemption here for fairness.
@@ -2591,6 +2559,62 @@
 	setGNoWB(&_g_.m.curg, nil)
 }
 
+// checkTimers runs any timers for the P that are ready.
+// If now is not 0 it is the current time.
+// It returns the current time or 0 if it is not known,
+// and the time when the next timer should run or 0 if there is no next timer,
+// and reports whether it ran any timers.
+// If the time when the next timer should run is not 0,
+// it is always larger than the returned time.
+// We pass now in and out to avoid extra calls of nanotime.
+//go:yeswritebarrierrec
+func checkTimers(pp *p, now int64) (rnow, pollUntil int64, ran bool) {
+	lock(&pp.timersLock)
+
+	adjusttimers(pp)
+
+	rnow = now
+	if len(pp.timers) > 0 {
+		if rnow == 0 {
+			rnow = nanotime()
+		}
+		for len(pp.timers) > 0 {
+			// Note that runtimer may temporarily unlock
+			// pp.timersLock.
+			if tw := runtimer(pp, rnow); tw != 0 {
+				if tw > 0 {
+					pollUntil = tw
+				}
+				break
+			}
+			ran = true
+		}
+	}
+
+	unlock(&pp.timersLock)
+
+	return rnow, pollUntil, ran
+}
+
+// shouldStealTimers reports whether we should try stealing the timers from p2.
+// We don't steal timers from a running P that is not marked for preemption,
+// on the assumption that it will run its own timers. This reduces
+// contention on the timers lock.
+func shouldStealTimers(p2 *p) bool {
+	if p2.status != _Prunning {
+		return true
+	}
+	mp := p2.m.ptr()
+	if mp == nil || mp.locks > 0 {
+		return false
+	}
+	gp := mp.curg
+	if gp == nil || gp.atomicstatus != _Grunning || !gp.preempt {
+		return false
+	}
+	return true
+}
+
 func parkunlock_c(gp *g, lock unsafe.Pointer) bool {
 	unlock((*mutex)(lock))
 	return true
@@ -2604,8 +2628,8 @@
 		traceGoPark(_g_.m.waittraceev, _g_.m.waittraceskip)
 	}
 
-	dropg()
 	casgstatus(gp, _Grunning, _Gwaiting)
+	dropg()
 
 	if fn := _g_.m.waitunlockf; fn != nil {
 		ok := fn(gp, _g_.m.waitlock)
@@ -2628,8 +2652,8 @@
 		dumpgstatus(gp)
 		throw("bad g status")
 	}
-	dropg()
 	casgstatus(gp, _Grunning, _Grunnable)
+	dropg()
 	lock(&sched.lock)
 	globrunqput(gp)
 	unlock(&sched.lock)
@@ -2648,7 +2672,7 @@
 // goschedguarded is a forbidden-states-avoided version of gosched_m
 func goschedguarded_m(gp *g) {
 
-	if gp.m.locks != 0 || gp.m.mallocing != 0 || gp.m.preemptoff != "" || gp.m.p.ptr().status != _Prunning {
+	if !canPreemptM(gp.m) {
 		gogo(gp) // never return
 	}
 
@@ -2665,6 +2689,47 @@
 	goschedImpl(gp)
 }
 
+// preemptPark parks gp and puts it in _Gpreempted.
+//
+//go:systemstack
+func preemptPark(gp *g) {
+	if trace.enabled {
+		traceGoPark(traceEvGoBlock, 0)
+	}
+	status := readgstatus(gp)
+	if status&^_Gscan != _Grunning {
+		dumpgstatus(gp)
+		throw("bad g status")
+	}
+	gp.waitreason = waitReasonPreempted
+	// Transition from _Grunning to _Gscan|_Gpreempted. We can't
+	// be in _Grunning when we dropg because then we'd be running
+	// without an M, but the moment we're in _Gpreempted,
+	// something could claim this G before we've fully cleaned it
+	// up. Hence, we set the scan bit to lock down further
+	// transitions until we can dropg.
+	casGToPreemptScan(gp, _Grunning, _Gscan|_Gpreempted)
+	dropg()
+	casfrom_Gscanstatus(gp, _Gscan|_Gpreempted, _Gpreempted)
+	schedule()
+}
+
+// goyield is like Gosched, but it:
+// - does not emit a GoSched trace event
+// - puts the current G on the runq of the current P instead of the globrunq
+func goyield() {
+	checkTimeouts()
+	mcall(goyield_m)
+}
+
+func goyield_m(gp *g) {
+	pp := gp.m.p.ptr()
+	casgstatus(gp, _Grunning, _Grunnable)
+	dropg()
+	runqput(pp, gp, false)
+	schedule()
+}
+
 // Finishes execution of the current goroutine.
 func goexit1() {
 	if trace.enabled {
@@ -2687,6 +2752,7 @@
 	gp.lockedm = 0
 	_g_.m.lockedg = 0
 	gp.entry = nil
+	gp.preemptStop = false
 	gp.paniconfault = false
 	gp._defer = nil // should be true already but just in case.
 	gp._panic = nil // non-nil for Goexit during panic. points at stack-allocated data.
@@ -2705,9 +2771,6 @@
 		gp.gcAssistBytes = 0
 	}
 
-	// Note that gp's stack scan is now "valid" because it has no
-	// stack.
-	gp.gcscanvalid = true
 	dropg()
 
 	if GOARCH == "wasm" { // no threads yet on wasm
@@ -3215,7 +3278,6 @@
 	if isSystemGoroutine(newg, false) {
 		atomic.Xadd(&sched.ngsys, +1)
 	}
-	newg.gcscanvalid = false
 	casgstatus(newg, _Gdead, _Grunnable)
 
 	if _p_.goidcache == _p_.goidcacheend {
@@ -3736,6 +3798,20 @@
 		globrunqputhead(pp.runnext.ptr())
 		pp.runnext = 0
 	}
+	if len(pp.timers) > 0 {
+		plocal := getg().m.p.ptr()
+		// The world is stopped, but we acquire timersLock to
+		// protect against sysmon calling timeSleepUntil.
+		// This is the only case where we hold the timersLock of
+		// more than one P, so there are no deadlock concerns.
+		lock(&plocal.timersLock)
+		lock(&pp.timersLock)
+		moveTimers(plocal, pp.timers)
+		pp.timers = nil
+		pp.adjustTimers = 0
+		unlock(&pp.timersLock)
+		unlock(&plocal.timersLock)
+	}
 	// If there's a background worker, make it runnable and put
 	// it on the global queue so it can clean itself up.
 	if gp := pp.gcBgMarkWorker.ptr(); gp != nil {
@@ -3761,14 +3837,18 @@
 		pp.deferpoolbuf[i] = nil
 	}
 	pp.deferpool = pp.deferpoolbuf[:0]
+	systemstack(func() {
+		for i := 0; i < pp.mspancache.len; i++ {
+			// Safe to call since the world is stopped.
+			mheap_.spanalloc.free(unsafe.Pointer(pp.mspancache.buf[i]))
+		}
+		pp.mspancache.len = 0
+		pp.pcache.flush(&mheap_.pages)
+	})
 	freemcache(pp.mcache)
 	pp.mcache = nil
 	gfpurge(pp)
 	traceProcFree(pp)
-	if raceenabled {
-		raceprocdestroy(pp.raceprocctx)
-		pp.raceprocctx = 0
-	}
 	pp.gcAssistTime = 0
 	pp.status = _Pdead
 }
@@ -4016,7 +4096,8 @@
 		}
 		s := readgstatus(gp)
 		switch s &^ _Gscan {
-		case _Gwaiting:
+		case _Gwaiting,
+			_Gpreempted:
 			grunning++
 		case _Grunnable,
 			_Grunning,
@@ -4028,17 +4109,18 @@
 	}
 	unlock(&allglock)
 	if grunning == 0 { // possible if main goroutine calls runtime·Goexit()
+		unlock(&sched.lock) // unlock so that GODEBUG=scheddetail=1 doesn't hang
 		throw("no goroutines (main called runtime.Goexit) - deadlock!")
 	}
 
 	// Maybe jump time forward for playground.
-	gp := timejump()
-	if gp != nil {
-		casgstatus(gp, _Gwaiting, _Grunnable)
-		globrunqput(gp)
-		_p_ := pidleget()
-		if _p_ == nil {
-			throw("checkdead: no p for timer")
+	_p_ := timejump()
+	if _p_ != nil {
+		for pp := &sched.pidle; *pp != 0; pp = &(*pp).ptr().link {
+			if (*pp).ptr() == _p_ {
+				*pp = _p_.link
+				break
+			}
 		}
 		mp := mget()
 		if mp == nil {
@@ -4051,7 +4133,15 @@
 		return
 	}
 
+	// There are no goroutines running, so we can look at the P's.
+	for _, _p_ := range allp {
+		if len(_p_.timers) > 0 {
+			return
+		}
+	}
+
 	getg().m.throwing = -1 // do not dump full stacks
+	unlock(&sched.lock)    // unlock so that GODEBUG=scheddetail=1 doesn't hang
 	throw("all goroutines are asleep - deadlock!")
 }
 
@@ -4084,32 +4174,34 @@
 			delay = 10 * 1000
 		}
 		usleep(delay)
+		now := nanotime()
+		next := timeSleepUntil()
 		if debug.schedtrace <= 0 && (sched.gcwaiting != 0 || atomic.Load(&sched.npidle) == uint32(gomaxprocs)) {
 			lock(&sched.lock)
 			if atomic.Load(&sched.gcwaiting) != 0 || atomic.Load(&sched.npidle) == uint32(gomaxprocs) {
-				atomic.Store(&sched.sysmonwait, 1)
-				unlock(&sched.lock)
-				// Make wake-up period small enough
-				// for the sampling to be correct.
-				maxsleep := forcegcperiod / 2
-				shouldRelax := true
-				if osRelaxMinNS > 0 {
-					next := timeSleepUntil()
-					now := nanotime()
-					if next-now < osRelaxMinNS {
-						shouldRelax = false
+				if next > now {
+					atomic.Store(&sched.sysmonwait, 1)
+					unlock(&sched.lock)
+					// Make wake-up period small enough
+					// for the sampling to be correct.
+					sleep := forcegcperiod / 2
+					if next-now < sleep {
+						sleep = next - now
 					}
+					shouldRelax := sleep >= osRelaxMinNS
+					if shouldRelax {
+						osRelax(true)
+					}
+					notetsleep(&sched.sysmonnote, sleep)
+					if shouldRelax {
+						osRelax(false)
+					}
+					now = nanotime()
+					next = timeSleepUntil()
+					lock(&sched.lock)
+					atomic.Store(&sched.sysmonwait, 0)
+					noteclear(&sched.sysmonnote)
 				}
-				if shouldRelax {
-					osRelax(true)
-				}
-				notetsleep(&sched.sysmonnote, maxsleep)
-				if shouldRelax {
-					osRelax(false)
-				}
-				lock(&sched.lock)
-				atomic.Store(&sched.sysmonwait, 0)
-				noteclear(&sched.sysmonnote)
 				idle = 0
 				delay = 20
 			}
@@ -4121,10 +4213,9 @@
 		}
 		// poll network if not polled for more than 10ms
 		lastpoll := int64(atomic.Load64(&sched.lastpoll))
-		now := nanotime()
 		if netpollinited() && lastpoll != 0 && lastpoll+10*1000*1000 < now {
 			atomic.Cas64(&sched.lastpoll, uint64(lastpoll), uint64(now))
-			list := netpoll(false) // non-blocking - returns list of goroutines
+			list := netpoll(0) // non-blocking - returns list of goroutines
 			if !list.empty() {
 				// Need to decrement number of idle locked M's
 				// (pretending that one more is running) before injectglist.
@@ -4138,6 +4229,12 @@
 				incidlelocked(1)
 			}
 		}
+		if next < now {
+			// There are timers that should have already run,
+			// perhaps because there is an unpreemptible P.
+			// Try to start an M to run them.
+			startm(nil, false)
+		}
 		// retake P's blocked in syscalls
 		// and preempt long running G's
 		if retake(now) != 0 {
@@ -4296,6 +4393,12 @@
 	// and a few other places, which is at least better than doing
 	// nothing at all.
 
+	// Request an async preemption of this P.
+	if preemptMSupported && debug.asyncpreemptoff == 0 {
+		_p_.preempt = true
+		preemptM(mp)
+	}
+
 	return true
 }
 
@@ -4324,7 +4427,7 @@
 			if mp != nil {
 				id = mp.id
 			}
-			print("  P", i, ": status=", _p_.status, " schedtick=", _p_.schedtick, " syscalltick=", _p_.syscalltick, " m=", id, " runqsize=", t-h, " gfreecnt=", _p_.gFree.n, "\n")
+			print("  P", i, ": status=", _p_.status, " schedtick=", _p_.schedtick, " syscalltick=", _p_.syscalltick, " m=", id, " runqsize=", t-h, " gfreecnt=", _p_.gFree.n, " timerslen=", len(_p_.timers), "\n")
 		} else {
 			// In non-detailed mode format lengths of per-P run queues as:
 			// [len1 len2 len3 len4]
diff --git a/libgo/go/runtime/proc_test.go b/libgo/go/runtime/proc_test.go
index fee03be..a693937 100644
--- a/libgo/go/runtime/proc_test.go
+++ b/libgo/go/runtime/proc_test.go
@@ -362,6 +362,17 @@
 	atomic.StoreUint32(&stop, 1)
 }
 
+func TestAsyncPreempt(t *testing.T) {
+	if !runtime.PreemptMSupported {
+		t.Skip("asynchronous preemption not supported on this platform")
+	}
+	output := runTestProg(t, "testprog", "AsyncPreempt")
+	want := "OK\n"
+	if output != want {
+		t.Fatalf("want %s, got %s\n", want, output)
+	}
+}
+
 func TestGCFairness(t *testing.T) {
 	output := runTestProg(t, "testprog", "GCFairness")
 	want := "OK\n"
@@ -988,3 +999,42 @@
 func TestGetgThreadSwitch(t *testing.T) {
 	runtime.RunGetgThreadSwitchTest()
 }
+
+// TestNetpollBreak tests that netpollBreak can break a netpoll.
+// This test is not particularly safe since the call to netpoll
+// will pick up any stray files that are ready, but it should work
+// OK as long it is not run in parallel.
+func TestNetpollBreak(t *testing.T) {
+	if runtime.GOMAXPROCS(0) == 1 {
+		t.Skip("skipping: GOMAXPROCS=1")
+	}
+
+	// Make sure that netpoll is initialized.
+	runtime.NetpollGenericInit()
+
+	start := time.Now()
+	c := make(chan bool, 2)
+	go func() {
+		c <- true
+		runtime.Netpoll(10 * time.Second.Nanoseconds())
+		c <- true
+	}()
+	<-c
+	// Loop because the break might get eaten by the scheduler.
+	// Break twice to break both the netpoll we started and the
+	// scheduler netpoll.
+loop:
+	for {
+		runtime.Usleep(100)
+		runtime.NetpollBreak()
+		runtime.NetpollBreak()
+		select {
+		case <-c:
+			break loop
+		default:
+		}
+	}
+	if dur := time.Since(start); dur > 5*time.Second {
+		t.Errorf("netpollBreak did not interrupt netpoll: slept for: %v", dur)
+	}
+}
diff --git a/libgo/go/runtime/race0.go b/libgo/go/runtime/race0.go
index f1d3706..6f26afa 100644
--- a/libgo/go/runtime/race0.go
+++ b/libgo/go/runtime/race0.go
@@ -29,6 +29,7 @@
 func racewriterangepc(addr unsafe.Pointer, sz, callerpc, pc uintptr)        { throw("race") }
 func raceacquire(addr unsafe.Pointer)                                       { throw("race") }
 func raceacquireg(gp *g, addr unsafe.Pointer)                               { throw("race") }
+func raceacquirectx(racectx uintptr, addr unsafe.Pointer)                   { throw("race") }
 func racerelease(addr unsafe.Pointer)                                       { throw("race") }
 func racereleaseg(gp *g, addr unsafe.Pointer)                               { throw("race") }
 func racereleasemerge(addr unsafe.Pointer)                                  { throw("race") }
@@ -38,3 +39,4 @@
 func racefree(p unsafe.Pointer, sz uintptr)                                 { throw("race") }
 func racegostart(pc uintptr) uintptr                                        { throw("race"); return 0 }
 func racegoend()                                                            { throw("race") }
+func racectxend(racectx uintptr)                                            { throw("race") }
diff --git a/libgo/go/runtime/runtime1.go b/libgo/go/runtime/runtime1.go
index c64549c..60aa90f 100644
--- a/libgo/go/runtime/runtime1.go
+++ b/libgo/go/runtime/runtime1.go
@@ -326,6 +326,7 @@
 	scheddetail        int32
 	schedtrace         int32
 	tracebackancestors int32
+	asyncpreemptoff    int32
 }
 
 var dbgvars = []dbgVar{
@@ -345,6 +346,7 @@
 	{"scheddetail", &debug.scheddetail},
 	{"schedtrace", &debug.schedtrace},
 	{"tracebackancestors", &debug.tracebackancestors},
+	{"asyncpreemptoff", &debug.asyncpreemptoff},
 }
 
 func parsedebugvars() {
diff --git a/libgo/go/runtime/runtime2.go b/libgo/go/runtime/runtime2.go
index 77648c2..d50f82a 100644
--- a/libgo/go/runtime/runtime2.go
+++ b/libgo/go/runtime/runtime2.go
@@ -40,7 +40,7 @@
 
 	// _Grunning means this goroutine may execute user code. The
 	// stack is owned by this goroutine. It is not on a run queue.
-	// It is assigned an M and a P.
+	// It is assigned an M and a P (g.m and g.m.p are valid).
 	_Grunning // 2
 
 	// _Gsyscall means this goroutine is executing a system call.
@@ -78,11 +78,18 @@
 	// stack is owned by the goroutine that put it in _Gcopystack.
 	_Gcopystack // 8
 
+	// _Gpreempted means this goroutine stopped itself for a
+	// suspendG preemption. It is like _Gwaiting, but nothing is
+	// yet responsible for ready()ing it. Some suspendG must CAS
+	// the status to _Gwaiting to take responsibility for
+	// ready()ing this G.
+	_Gpreempted // 9
+
 	// _Gexitingsyscall means this goroutine is exiting from a
 	// system call. This is like _Gsyscall, but the GC should not
 	// scan its stack. Currently this is only used in exitsyscall0
 	// as a transient state when it drops the G.
-	_Gexitingsyscall // 9
+	_Gexitingsyscall // 10
 
 	// _Gscan combined with one of the above states other than
 	// _Grunning indicates that GC is scanning the stack. The
@@ -95,11 +102,12 @@
 	//
 	// atomicstatus&~Gscan gives the state the goroutine will
 	// return to when the scan completes.
-	_Gscan         = 0x1000
-	_Gscanrunnable = _Gscan + _Grunnable // 0x1001
-	_Gscanrunning  = _Gscan + _Grunning  // 0x1002
-	_Gscansyscall  = _Gscan + _Gsyscall  // 0x1003
-	_Gscanwaiting  = _Gscan + _Gwaiting  // 0x1004
+	_Gscan          = 0x1000
+	_Gscanrunnable  = _Gscan + _Grunnable  // 0x1001
+	_Gscanrunning   = _Gscan + _Grunning   // 0x1002
+	_Gscansyscall   = _Gscan + _Gsyscall   // 0x1003
+	_Gscanwaiting   = _Gscan + _Gwaiting   // 0x1004
+	_Gscanpreempted = _Gscan + _Gpreempted // 0x1009
 )
 
 const (
@@ -407,21 +415,36 @@
 	param        unsafe.Pointer // passed parameter on wakeup
 	atomicstatus uint32
 	// Not for gccgo: stackLock      uint32 // sigprof/scang lock; TODO: fold in to atomicstatus
-	goid           int64
-	schedlink      guintptr
-	waitsince      int64      // approx time when the g become blocked
-	waitreason     waitReason // if status==Gwaiting
-	preempt        bool       // preemption signal, duplicates stackguard0 = stackpreempt
-	paniconfault   bool       // panic (instead of crash) on unexpected fault address
-	preemptscan    bool       // preempted g does scan for gc
-	gcscandone     bool       // g has scanned stack; protected by _Gscan bit in status
-	gcscanvalid    bool       // false at start of gc cycle, true if G has not run since last scan; TODO: remove?
-	throwsplit     bool       // must not split stack
-	raceignore     int8       // ignore race detection events
-	sysblocktraced bool       // StartTrace has emitted EvGoInSyscall about this goroutine
-	sysexitticks   int64      // cputicks when syscall has returned (for tracing)
-	traceseq       uint64     // trace event sequencer
-	tracelastp     puintptr   // last P emitted an event for this goroutine
+	goid        int64
+	schedlink   guintptr
+	waitsince   int64      // approx time when the g become blocked
+	waitreason  waitReason // if status==Gwaiting
+	preempt     bool       // preemption signal, duplicates stackguard0 = stackpreempt
+	preemptStop bool       // transition to _Gpreempted on preemption; otherwise, just deschedule
+	// Not for gccgo: preemptShrink bool // shrink stack at synchronous safe point
+	// asyncSafePoint is set if g is stopped at an asynchronous
+	// safe point. This means there are frames on the stack
+	// without precise pointer information.
+	asyncSafePoint bool
+
+	paniconfault bool // panic (instead of crash) on unexpected fault address
+	preemptscan  bool // preempted g does scan for gc
+	gcscandone   bool // g has scanned stack; protected by _Gscan bit in status
+	throwsplit   bool // must not split stack
+
+	gcScannedSyscallStack bool // gccgo specific; see scanSyscallStack
+
+	// activeStackChans indicates that there are unlocked channels
+	// pointing into this goroutine's stack. If true, stack
+	// copying needs to acquire channel locks to protect these
+	// areas of the stack.
+	activeStackChans bool
+
+	raceignore     int8     // ignore race detection events
+	sysblocktraced bool     // StartTrace has emitted EvGoInSyscall about this goroutine
+	sysexitticks   int64    // cputicks when syscall has returned (for tracing)
+	traceseq       uint64   // trace event sequencer
+	tracelastp     puintptr // last P emitted an event for this goroutine
 	lockedm        muintptr
 	sig            uint32
 	writebuf       []byte
@@ -555,8 +578,7 @@
 	waittraceskip int
 	startingtrace bool
 	syscalltick   uint32
-	// Not for gccgo: thread        uintptr // thread handle
-	freelink *m // on sched.freem
+	freelink      *m // on sched.freem
 
 	// these are here because they are too large to be on the stack
 	// of low-level NOSPLIT functions.
@@ -566,6 +588,11 @@
 	// Not for gccgo: libcallg  guintptr
 	// Not for gccgo: syscall   libcall // stores syscall parameters on windows
 
+	// preemptGen counts the number of completed preemption
+	// signals. This is used to detect when a preemption is
+	// requested, but fails. Accessed atomically.
+	preemptGen uint32
+
 	dlogPerM
 
 	mOS
@@ -590,6 +617,7 @@
 	sysmontick  sysmontick // last tick observed by sysmon
 	m           muintptr   // back-link to associated m (nil if idle)
 	mcache      *mcache
+	pcache      pageCache
 	raceprocctx uintptr
 
 	// gccgo has only one size of defer.
@@ -624,6 +652,17 @@
 	sudogcache []*sudog
 	sudogbuf   [128]*sudog
 
+	// Cache of mspan objects from the heap.
+	mspancache struct {
+		// We need an explicit length here because this field is used
+		// in allocation codepaths where write barriers are not allowed,
+		// and eliminating the write barrier/keeping it eliminated from
+		// slice updates is tricky, moreso than just managing the length
+		// ourselves.
+		len int
+		buf [128]*mspan
+	}
+
 	tracebuf traceBufPtr
 
 	// traceSweep indicates the sweep events should be traced.
@@ -660,13 +699,36 @@
 
 	runSafePointFn uint32 // if 1, run sched.safePointFn at next safe point
 
+	// Lock for timers. We normally access the timers while running
+	// on this P, but the scheduler can also do it from a different P.
+	timersLock mutex
+
+	// Actions to take at some time. This is used to implement the
+	// standard library's time package.
+	// Must hold timersLock to access.
+	timers []*timer
+
+	// Number of timerModifiedEarlier timers on P's heap.
+	// This should only be modified while holding timersLock,
+	// or while the timer status is in a transient state
+	// such as timerModifying.
+	adjustTimers uint32
+
+	// Race context used while executing timer functions.
+	// Not for gccgo: timerRaceCtx uintptr
+
+	// preempt is set to indicate that this P should be enter the
+	// scheduler ASAP (regardless of what G is running on it).
+	preempt bool
+
 	pad cpu.CacheLinePad
 }
 
 type schedt struct {
 	// accessed atomically. keep at top to ensure alignment on 32-bit systems.
-	goidgen  uint64
-	lastpoll uint64
+	goidgen   uint64
+	lastpoll  uint64 // time of last network poll, 0 if currently polling
+	pollUntil uint64 // time to which current poll is sleeping
 
 	lock mutex
 
@@ -841,6 +903,11 @@
 
 // panics
 // This is the gccgo version.
+//
+// This is marked go:notinheap because _panic values must only ever
+// live on the stack.
+//
+//go:notinheap
 type _panic struct {
 	// The next entry in the stack.
 	link *_panic
@@ -858,6 +925,9 @@
 	// Whether this panic was already seen by a deferred function
 	// which called panic again.
 	aborted bool
+
+	// Whether this panic was created for goexit.
+	goexit bool
 }
 
 // ancestorInfo records details of where a goroutine was started.
@@ -906,6 +976,7 @@
 	waitReasonTraceReaderBlocked                      // "trace reader (blocked)"
 	waitReasonWaitForGCCycle                          // "wait for GC cycle"
 	waitReasonGCWorkerIdle                            // "GC worker (idle)"
+	waitReasonPreempted                               // "preempted"
 )
 
 var waitReasonStrings = [...]string{
@@ -934,6 +1005,7 @@
 	waitReasonTraceReaderBlocked:    "trace reader (blocked)",
 	waitReasonWaitForGCCycle:        "wait for GC cycle",
 	waitReasonGCWorkerIdle:          "GC worker (idle)",
+	waitReasonPreempted:             "preempted",
 }
 
 func (w waitReason) String() string {
diff --git a/libgo/go/runtime/runtime_mmap_test.go b/libgo/go/runtime/runtime_mmap_test.go
index c7703f4..21918c5 100644
--- a/libgo/go/runtime/runtime_mmap_test.go
+++ b/libgo/go/runtime/runtime_mmap_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris
 
 package runtime_test
 
diff --git a/libgo/go/runtime/runtime_test.go b/libgo/go/runtime/runtime_test.go
index e6078680..ca35205 100644
--- a/libgo/go/runtime/runtime_test.go
+++ b/libgo/go/runtime/runtime_test.go
@@ -122,6 +122,21 @@
 	}
 }
 
+func BenchmarkPanicRecover(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		defer3()
+	}
+}
+
+func defer3() {
+	defer func(x, y, z int) {
+		if recover() == nil {
+			panic("failed recover")
+		}
+	}(1, 2, 3)
+	panic("hi")
+}
+
 // golang.org/issue/7063
 func TestStopCPUProfilingWithProfilerOff(t *testing.T) {
 	SetCPUProfileRate(0)
@@ -177,13 +192,14 @@
 	}
 }
 
+// testSetPanicOnFault tests one potentially faulting address.
+// It deliberately constructs and uses an invalid pointer,
+// so mark it as nocheckptr.
+//go:nocheckptr
 func testSetPanicOnFault(t *testing.T, addr uintptr, nfault *int) {
 	if strings.Contains(Version(), "llvm") {
 		t.Skip("LLVM doesn't support non-call exception")
 	}
-	if GOOS == "nacl" {
-		t.Skip("nacl doesn't seem to fault on high addresses")
-	}
 	if GOOS == "js" {
 		t.Skip("js does not support catching faults")
 	}
@@ -283,32 +299,6 @@
 }
 */
 
-func TestBadOpen(t *testing.T) {
-	if GOOS == "windows" || GOOS == "nacl" || GOOS == "js" {
-		t.Skip("skipping OS that doesn't have open/read/write/close")
-	}
-	// make sure we get the correct error code if open fails. Same for
-	// read/write/close on the resulting -1 fd. See issue 10052.
-	nonfile := []byte("/notreallyafile")
-	fd := Open(&nonfile[0], 0, 0)
-	if fd != -1 {
-		t.Errorf("open(\"%s\")=%d, want -1", string(nonfile), fd)
-	}
-	var buf [32]byte
-	r := Read(-1, unsafe.Pointer(&buf[0]), int32(len(buf)))
-	if r != -1 {
-		t.Errorf("read()=%d, want -1", r)
-	}
-	w := Write(^uintptr(0), unsafe.Pointer(&buf[0]), int32(len(buf)))
-	if w != -1 {
-		t.Errorf("write()=%d, want -1", w)
-	}
-	c := Close(-1)
-	if c != -1 {
-		t.Errorf("close()=%d, want -1", c)
-	}
-}
-
 func TestAppendGrowth(t *testing.T) {
 	var x []int64
 	check := func(want int) {
diff --git a/libgo/go/runtime/select.go b/libgo/go/runtime/select.go
index 41e5e88..c9e3dd7 100644
--- a/libgo/go/runtime/select.go
+++ b/libgo/go/runtime/select.go
@@ -19,7 +19,7 @@
 
 // scase.kind values.
 // Known to compiler.
-// Changes here must also be made in src/cmd/compile/internal/gc/select.go's walkselect.
+// Changes here must also be made in src/cmd/compile/internal/gc/select.go's walkselectcases.
 const (
 	caseNil = iota
 	caseRecv
@@ -70,6 +70,9 @@
 }
 
 func selparkcommit(gp *g, _ unsafe.Pointer) bool {
+	// There are unlocked sudogs that point into gp's stack. Stack
+	// copying must lock the channels of those sudogs.
+	gp.activeStackChans = true
 	// This must not access gp's stack (see gopark). In
 	// particular, it must not access the *hselect. That's okay,
 	// because by the time this is called, gp.waiting has all
@@ -308,6 +311,7 @@
 	// wait for someone to wake us up
 	gp.param = nil
 	gopark(selparkcommit, nil, waitReasonSelect, traceEvGoBlockSelect, 1)
+	gp.activeStackChans = false
 
 	sellock(scases, lockorder)
 
@@ -458,8 +462,6 @@
 }
 
 func (c *hchan) sortkey() uintptr {
-	// TODO(khr): if we have a moving garbage collector, we'll need to
-	// change this function.
 	return uintptr(unsafe.Pointer(c))
 }
 
diff --git a/libgo/go/runtime/sema.go b/libgo/go/runtime/sema.go
index c002e29..fb16796 100644
--- a/libgo/go/runtime/sema.go
+++ b/libgo/go/runtime/sema.go
@@ -180,7 +180,7 @@
 		atomic.Xadd(&root.nwait, -1)
 	}
 	unlock(&root.lock)
-	if s != nil { // May be slow, so unlock first
+	if s != nil { // May be slow or even yield, so unlock first
 		acquiretime := s.acquiretime
 		if acquiretime != 0 {
 			mutexevent(t0-acquiretime, 3+skipframes)
@@ -192,6 +192,25 @@
 			s.ticket = 1
 		}
 		readyWithTime(s, 5+skipframes)
+		if s.ticket == 1 && getg().m.locks == 0 {
+			// Direct G handoff
+			// readyWithTime has added the waiter G as runnext in the
+			// current P; we now call the scheduler so that we start running
+			// the waiter G immediately.
+			// Note that waiter inherits our time slice: this is desirable
+			// to avoid having a highly contended semaphore hog the P
+			// indefinitely. goyield is like Gosched, but it does not emit a
+			// GoSched trace event and, more importantly, puts the current G
+			// on the local runq instead of the global one.
+			// We only do this in the starving regime (handoff=true), as in
+			// the non-starving case it is possible for a different waiter
+			// to acquire the semaphore while we are yielding/scheduling,
+			// and this would be wasteful. We wait instead to enter starving
+			// regime, and then we start to do direct handoffs of ticket and
+			// P.
+			// See issue 33747 for discussion.
+			goyield()
+		}
 	}
 }
 
@@ -373,19 +392,11 @@
 func (root *semaRoot) rotateLeft(x *sudog) {
 	// p -> (x a (y b c))
 	p := x.parent
-	a, y := x.prev, x.next
-	b, c := y.prev, y.next
+	y := x.next
+	b := y.prev
 
 	y.prev = x
 	x.parent = y
-	y.next = c
-	if c != nil {
-		c.parent = y
-	}
-	x.prev = a
-	if a != nil {
-		a.parent = x
-	}
 	x.next = b
 	if b != nil {
 		b.parent = x
@@ -409,23 +420,15 @@
 func (root *semaRoot) rotateRight(y *sudog) {
 	// p -> (y (x a b) c)
 	p := y.parent
-	x, c := y.prev, y.next
-	a, b := x.prev, x.next
+	x := y.prev
+	b := x.next
 
-	x.prev = a
-	if a != nil {
-		a.parent = x
-	}
 	x.next = y
 	y.parent = x
 	y.prev = b
 	if b != nil {
 		b.parent = y
 	}
-	y.next = c
-	if c != nil {
-		c.parent = y
-	}
 
 	x.parent = p
 	if p == nil {
diff --git a/libgo/go/runtime/sema_test.go b/libgo/go/runtime/sema_test.go
new file mode 100644
index 0000000..8bd5d4c
--- /dev/null
+++ b/libgo/go/runtime/sema_test.go
@@ -0,0 +1,97 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime_test
+
+import (
+	. "runtime"
+	"sync/atomic"
+	"testing"
+)
+
+// TestSemaHandoff checks that when semrelease+handoff is
+// requested, the G that releases the semaphore yields its
+// P directly to the first waiter in line.
+// See issue 33747 for discussion.
+func TestSemaHandoff(t *testing.T) {
+	const iter = 10000
+	ok := 0
+	for i := 0; i < iter; i++ {
+		if testSemaHandoff() {
+			ok++
+		}
+	}
+	// As long as two thirds of handoffs are direct, we
+	// consider the test successful. The scheduler is
+	// nondeterministic, so this test checks that we get the
+	// desired outcome in a significant majority of cases.
+	// The actual ratio of direct handoffs is much higher
+	// (>90%) but we use a lower threshold to minimize the
+	// chances that unrelated changes in the runtime will
+	// cause the test to fail or become flaky.
+	if ok < iter*2/3 {
+		t.Fatal("direct handoff < 2/3:", ok, iter)
+	}
+}
+
+func TestSemaHandoff1(t *testing.T) {
+	if GOMAXPROCS(-1) <= 1 {
+		t.Skip("GOMAXPROCS <= 1")
+	}
+	defer GOMAXPROCS(GOMAXPROCS(-1))
+	GOMAXPROCS(1)
+	TestSemaHandoff(t)
+}
+
+func TestSemaHandoff2(t *testing.T) {
+	if GOMAXPROCS(-1) <= 2 {
+		t.Skip("GOMAXPROCS <= 2")
+	}
+	defer GOMAXPROCS(GOMAXPROCS(-1))
+	GOMAXPROCS(2)
+	TestSemaHandoff(t)
+}
+
+func testSemaHandoff() bool {
+	var sema, res uint32
+	done := make(chan struct{})
+
+	// We're testing that the current goroutine is able to yield its time slice
+	// to another goroutine. Stop the current goroutine from migrating to
+	// another CPU where it can win the race (and appear to have not yielded) by
+	// keeping the CPUs slightly busy.
+	for i := 0; i < GOMAXPROCS(-1); i++ {
+		go func() {
+			for {
+				select {
+				case <-done:
+					return
+				default:
+				}
+				Gosched()
+			}
+		}()
+	}
+
+	go func() {
+		Semacquire(&sema)
+		atomic.CompareAndSwapUint32(&res, 0, 1)
+
+		Semrelease1(&sema, true, 0)
+		close(done)
+	}()
+	for SemNwait(&sema) == 0 {
+		Gosched() // wait for goroutine to block in Semacquire
+	}
+
+	// The crux of the test: we release the semaphore with handoff
+	// and immediately perform a CAS both here and in the waiter; we
+	// want the CAS in the waiter to execute first.
+	Semrelease1(&sema, true, 0)
+	atomic.CompareAndSwapUint32(&res, 0, 2)
+
+	<-done // wait for goroutines to finish to avoid data races
+
+	return res == 1 // did the waiter run first?
+}
diff --git a/libgo/go/runtime/semasleep_test.go b/libgo/go/runtime/semasleep_test.go
index f5b4a50..9b371b0 100644
--- a/libgo/go/runtime/semasleep_test.go
+++ b/libgo/go/runtime/semasleep_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//+build !nacl,!plan9,!windows,!js
+// +build !plan9,!windows,!js
 
 package runtime_test
 
diff --git a/libgo/go/runtime/signal_sighandler.go b/libgo/go/runtime/signal_sighandler.go
deleted file mode 100644
index 3583c7b..0000000
--- a/libgo/go/runtime/signal_sighandler.go
+++ /dev/null
@@ -1,176 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build aix darwin dragonfly freebsd hurd linux nacl netbsd openbsd solaris
-
-package runtime
-
-import (
-	"unsafe"
-)
-
-// crashing is the number of m's we have waited for when implementing
-// GOTRACEBACK=crash when a signal is received.
-var crashing int32
-
-// testSigtrap is used by the runtime tests. If non-nil, it is called
-// on SIGTRAP. If it returns true, the normal behavior on SIGTRAP is
-// suppressed.
-var testSigtrap func(info *_siginfo_t, ctxt *sigctxt, gp *g) bool
-
-// sighandler is invoked when a signal occurs. The global g will be
-// set to a gsignal goroutine and we will be running on the alternate
-// signal stack. The parameter g will be the value of the global g
-// when the signal occurred. The sig, info, and ctxt parameters are
-// from the system signal handler: they are the parameters passed when
-// the SA is passed to the sigaction system call.
-//
-// The garbage collector may have stopped the world, so write barriers
-// are not allowed.
-//
-//go:nowritebarrierrec
-func sighandler(sig uint32, info *_siginfo_t, ctxt unsafe.Pointer, gp *g) {
-	_g_ := getg()
-	c := &sigctxt{info, ctxt}
-
-	sigfault, sigpc := getSiginfo(info, ctxt)
-
-	if sig == _SIGURG && usestackmaps {
-		// We may be signaled to do a stack scan.
-		// The signal delivery races with enter/exitsyscall.
-		// We may be on g0 stack now. gp.m.curg is the g we
-		// want to scan.
-		// If we're not on g stack, give up. The sender will
-		// try again later.
-		// If we're not stopped at a safepoint (doscanstack will
-		// return false), also give up.
-		if s := readgstatus(gp.m.curg); s == _Gscansyscall {
-			if gp == gp.m.curg {
-				if doscanstack(gp, (*gcWork)(unsafe.Pointer(gp.scangcw))) {
-					gp.gcscanvalid = true
-					gp.gcscandone = true
-				}
-			}
-			gp.m.curg.scangcw = 0
-			notewakeup(&gp.m.scannote)
-			return
-		}
-	}
-
-	if sig == _SIGPROF {
-		sigprof(sigpc, gp, _g_.m)
-		return
-	}
-
-	if sig == _SIGTRAP && testSigtrap != nil && testSigtrap(info, (*sigctxt)(noescape(unsafe.Pointer(c))), gp) {
-		return
-	}
-
-	flags := int32(_SigThrow)
-	if sig < uint32(len(sigtable)) {
-		flags = sigtable[sig].flags
-	}
-	if flags&_SigPanic != 0 && gp.throwsplit {
-		// We can't safely sigpanic because it may grow the
-		// stack. Abort in the signal handler instead.
-		flags = (flags &^ _SigPanic) | _SigThrow
-	}
-	if isAbortPC(sigpc) {
-		// On many architectures, the abort function just
-		// causes a memory fault. Don't turn that into a panic.
-		flags = _SigThrow
-	}
-	if c.sigcode() != _SI_USER && flags&_SigPanic != 0 {
-		// Emulate gc by passing arguments out of band,
-		// although we don't really have to.
-		gp.sig = sig
-		gp.sigcode0 = uintptr(c.sigcode())
-		gp.sigcode1 = sigfault
-		gp.sigpc = sigpc
-
-		setg(gp)
-
-		// All signals were blocked due to the sigaction mask;
-		// unblock them.
-		var set sigset
-		sigfillset(&set)
-		sigprocmask(_SIG_UNBLOCK, &set, nil)
-
-		sigpanic()
-		throw("sigpanic returned")
-	}
-
-	if c.sigcode() == _SI_USER || flags&_SigNotify != 0 {
-		if sigsend(sig) {
-			return
-		}
-	}
-
-	if c.sigcode() == _SI_USER && signal_ignored(sig) {
-		return
-	}
-
-	if flags&_SigKill != 0 {
-		dieFromSignal(sig)
-	}
-
-	if flags&_SigThrow == 0 {
-		return
-	}
-
-	_g_.m.throwing = 1
-	_g_.m.caughtsig.set(gp)
-
-	if crashing == 0 {
-		startpanic_m()
-	}
-
-	if sig < uint32(len(sigtable)) {
-		print(sigtable[sig].name, "\n")
-	} else {
-		print("Signal ", sig, "\n")
-	}
-
-	print("PC=", hex(sigpc), " m=", _g_.m.id, " sigcode=", c.sigcode(), "\n")
-	if _g_.m.lockedg != 0 && _g_.m.ncgo > 0 && gp == _g_.m.g0 {
-		print("signal arrived during cgo execution\n")
-		gp = _g_.m.lockedg.ptr()
-	}
-	print("\n")
-
-	level, _, docrash := gotraceback()
-	if level > 0 {
-		goroutineheader(gp)
-		traceback(0)
-		if crashing == 0 {
-			tracebackothers(gp)
-			print("\n")
-		}
-		dumpregs(info, ctxt)
-	}
-
-	if docrash {
-		crashing++
-		if crashing < mcount()-int32(extraMCount) {
-			// There are other m's that need to dump their stacks.
-			// Relay SIGQUIT to the next m by sending it to the current process.
-			// All m's that have already received SIGQUIT have signal masks blocking
-			// receipt of any signals, so the SIGQUIT will go to an m that hasn't seen it yet.
-			// When the last m receives the SIGQUIT, it will fall through to the call to
-			// crash below. Just in case the relaying gets botched, each m involved in
-			// the relay sleeps for 5 seconds and then does the crash/exit itself.
-			// In expected operation, the last m has received the SIGQUIT and run
-			// crash/exit and the process is gone, all long before any of the
-			// 5-second sleeps have finished.
-			print("\n-----\n\n")
-			raiseproc(_SIGQUIT)
-			usleep(5 * 1000 * 1000)
-		}
-		crash()
-	}
-
-	printDebugLog()
-
-	exit(2)
-}
diff --git a/libgo/go/runtime/signal_unix.go b/libgo/go/runtime/signal_unix.go
index 365f5dd..29f9443 100644
--- a/libgo/go/runtime/signal_unix.go
+++ b/libgo/go/runtime/signal_unix.go
@@ -42,6 +42,38 @@
 	_SIG_IGN uintptr = 1
 )
 
+// sigPreempt is the signal used for non-cooperative preemption.
+//
+// There's no good way to choose this signal, but there are some
+// heuristics:
+//
+// 1. It should be a signal that's passed-through by debuggers by
+// default. On Linux, this is SIGALRM, SIGURG, SIGCHLD, SIGIO,
+// SIGVTALRM, SIGPROF, and SIGWINCH, plus some glibc-internal signals.
+//
+// 2. It shouldn't be used internally by libc in mixed Go/C binaries
+// because libc may assume it's the only thing that can handle these
+// signals. For example SIGCANCEL or SIGSETXID.
+//
+// 3. It should be a signal that can happen spuriously without
+// consequences. For example, SIGALRM is a bad choice because the
+// signal handler can't tell if it was caused by the real process
+// alarm or not (arguably this means the signal is broken, but I
+// digress). SIGUSR1 and SIGUSR2 are also bad because those are often
+// used in meaningful ways by applications.
+//
+// 4. We need to deal with platforms without real-time signals (like
+// macOS), so those are out.
+//
+// We use SIGURG because it meets all of these criteria, is extremely
+// unlikely to be used by an application for its "real" meaning (both
+// because out-of-band data is basically unused and because SIGURG
+// doesn't report which socket has the condition, making it pretty
+// useless), and even if it is, the application has to be ready for
+// spurious SIGURG. SIGIO wouldn't be a bad choice either, but is more
+// likely to be used for real.
+const sigPreempt = _SIGURG
+
 // Stores the signal handlers registered before Go installed its own.
 // These signal handlers will be invoked in cases where Go doesn't want to
 // handle a particular signal (e.g., signal occurred on a non-Go thread).
@@ -251,10 +283,26 @@
 		}
 	} else {
 		// If the Go signal handler should be disabled by default,
-		// disable it if it is enabled.
+		// switch back to the signal handler that was installed
+		// when we enabled profiling. We don't try to handle the case
+		// of a program that changes the SIGPROF handler while Go
+		// profiling is enabled.
+		//
+		// If no signal handler was installed before, then start
+		// ignoring SIGPROF signals. We do this, rather than change
+		// to SIG_DFL, because there may be a pending SIGPROF
+		// signal that has not yet been delivered to some other thread.
+		// If we change to SIG_DFL here, the program will crash
+		// when that SIGPROF is delivered. We assume that programs
+		// that use profiling don't want to crash on a stray SIGPROF.
+		// See issue 19320.
 		if !sigInstallGoHandler(_SIGPROF) {
 			if atomic.Cas(&handlingSig[_SIGPROF], 1, 0) {
-				setsig(_SIGPROF, atomic.Loaduintptr(&fwdSig[_SIGPROF]))
+				h := atomic.Loaduintptr(&fwdSig[_SIGPROF])
+				if h == _SIG_DFL {
+					h = _SIG_IGN
+				}
+				setsig(_SIGPROF, h)
 			}
 		}
 	}
@@ -283,6 +331,51 @@
 	dieFromSignal(_SIGPIPE)
 }
 
+// doSigPreempt handles a preemption signal on gp.
+func doSigPreempt(gp *g, ctxt *sigctxt, sigpc uintptr) {
+	// Check if this G wants to be preempted and is safe to
+	// preempt.
+	if wantAsyncPreempt(gp) && isAsyncSafePoint(gp, sigpc) {
+		// Inject a call to asyncPreempt.
+		// ctxt.pushCall(funcPC(asyncPreempt))
+		throw("pushCall not implemented")
+	}
+
+	// Acknowledge the preemption.
+	atomic.Xadd(&gp.m.preemptGen, 1)
+}
+
+// gccgo-specific definition.
+const pushCallSupported = false
+
+const preemptMSupported = pushCallSupported
+
+// preemptM sends a preemption request to mp. This request may be
+// handled asynchronously and may be coalesced with other requests to
+// the M. When the request is received, if the running G or P are
+// marked for preemption and the goroutine is at an asynchronous
+// safe-point, it will preempt the goroutine. It always atomically
+// increments mp.preemptGen after handling a preemption request.
+func preemptM(mp *m) {
+	if !pushCallSupported {
+		// This architecture doesn't support ctxt.pushCall
+		// yet, so doSigPreempt won't work.
+		return
+	}
+	if GOOS == "darwin" && (GOARCH == "arm" || GOARCH == "arm64") && !iscgo {
+		// On darwin, we use libc calls, and cgo is required on ARM and ARM64
+		// so we have TLS set up to save/restore G during C calls. If cgo is
+		// absent, we cannot save/restore G in TLS, and if a signal is
+		// received during C execution we cannot get the G. Therefore don't
+		// send signals.
+		// This can only happen in the go_bootstrap program (otherwise cgo is
+		// required).
+		return
+	}
+	// signalM(mp, sigPreempt)
+	throw("signalM not implemented")
+}
+
 // sigtrampgo is called from the signal handler function, sigtramp,
 // written in assembly code.
 // This is called by the signal handler, and the world may be stopped.
@@ -315,6 +408,183 @@
 	setg(g)
 }
 
+// crashing is the number of m's we have waited for when implementing
+// GOTRACEBACK=crash when a signal is received.
+var crashing int32
+
+// testSigtrap and testSigusr1 are used by the runtime tests. If
+// non-nil, it is called on SIGTRAP/SIGUSR1. If it returns true, the
+// normal behavior on this signal is suppressed.
+var testSigtrap func(info *_siginfo_t, ctxt *sigctxt, gp *g) bool
+var testSigusr1 func(gp *g) bool
+
+// sighandler is invoked when a signal occurs. The global g will be
+// set to a gsignal goroutine and we will be running on the alternate
+// signal stack. The parameter g will be the value of the global g
+// when the signal occurred. The sig, info, and ctxt parameters are
+// from the system signal handler: they are the parameters passed when
+// the SA is passed to the sigaction system call.
+//
+// The garbage collector may have stopped the world, so write barriers
+// are not allowed.
+//
+//go:nowritebarrierrec
+func sighandler(sig uint32, info *_siginfo_t, ctxt unsafe.Pointer, gp *g) {
+	_g_ := getg()
+	c := &sigctxt{info, ctxt}
+
+	sigfault, sigpc := getSiginfo(info, ctxt)
+
+	if sig == _SIGURG && usestackmaps {
+		// We may be signaled to do a stack scan.
+		// The signal delivery races with enter/exitsyscall.
+		// We may be on g0 stack now. gp.m.curg is the g we
+		// want to scan.
+		// If we're not on g stack, give up. The sender will
+		// try again later.
+		// If we're not stopped at a safepoint (doscanstack will
+		// return false), also give up.
+		if s := readgstatus(gp.m.curg); s == _Gscansyscall {
+			if gp == gp.m.curg {
+				if doscanstack(gp, (*gcWork)(unsafe.Pointer(gp.scangcw))) {
+					gp.gcScannedSyscallStack = true
+				}
+			}
+			gp.m.curg.scangcw = 0
+			notewakeup(&gp.m.scannote)
+			return
+		}
+	}
+
+	if sig == _SIGPROF {
+		sigprof(sigpc, gp, _g_.m)
+		return
+	}
+
+	if sig == _SIGTRAP && testSigtrap != nil && testSigtrap(info, (*sigctxt)(noescape(unsafe.Pointer(c))), gp) {
+		return
+	}
+
+	if sig == _SIGUSR1 && testSigusr1 != nil && testSigusr1(gp) {
+		return
+	}
+
+	if sig == sigPreempt {
+		// Might be a preemption signal.
+		doSigPreempt(gp, c, sigpc)
+		// Even if this was definitely a preemption signal, it
+		// may have been coalesced with another signal, so we
+		// still let it through to the application.
+	}
+
+	flags := int32(_SigThrow)
+	if sig < uint32(len(sigtable)) {
+		flags = sigtable[sig].flags
+	}
+	if flags&_SigPanic != 0 && gp.throwsplit {
+		// We can't safely sigpanic because it may grow the
+		// stack. Abort in the signal handler instead.
+		flags = (flags &^ _SigPanic) | _SigThrow
+	}
+	if isAbortPC(sigpc) {
+		// On many architectures, the abort function just
+		// causes a memory fault. Don't turn that into a panic.
+		flags = _SigThrow
+	}
+	if c.sigcode() != _SI_USER && flags&_SigPanic != 0 {
+		// Emulate gc by passing arguments out of band,
+		// although we don't really have to.
+		gp.sig = sig
+		gp.sigcode0 = uintptr(c.sigcode())
+		gp.sigcode1 = sigfault
+		gp.sigpc = sigpc
+
+		setg(gp)
+
+		// All signals were blocked due to the sigaction mask;
+		// unblock them.
+		var set sigset
+		sigfillset(&set)
+		sigprocmask(_SIG_UNBLOCK, &set, nil)
+
+		sigpanic()
+		throw("sigpanic returned")
+	}
+
+	if c.sigcode() == _SI_USER || flags&_SigNotify != 0 {
+		if sigsend(sig) {
+			return
+		}
+	}
+
+	if c.sigcode() == _SI_USER && signal_ignored(sig) {
+		return
+	}
+
+	if flags&_SigKill != 0 {
+		dieFromSignal(sig)
+	}
+
+	if flags&_SigThrow == 0 {
+		return
+	}
+
+	_g_.m.throwing = 1
+	_g_.m.caughtsig.set(gp)
+
+	if crashing == 0 {
+		startpanic_m()
+	}
+
+	if sig < uint32(len(sigtable)) {
+		print(sigtable[sig].name, "\n")
+	} else {
+		print("Signal ", sig, "\n")
+	}
+
+	print("PC=", hex(sigpc), " m=", _g_.m.id, " sigcode=", c.sigcode(), "\n")
+	if _g_.m.lockedg != 0 && _g_.m.ncgo > 0 && gp == _g_.m.g0 {
+		print("signal arrived during cgo execution\n")
+		gp = _g_.m.lockedg.ptr()
+	}
+	print("\n")
+
+	level, _, docrash := gotraceback()
+	if level > 0 {
+		goroutineheader(gp)
+		traceback(0)
+		if crashing == 0 {
+			tracebackothers(gp)
+			print("\n")
+		}
+		dumpregs(info, ctxt)
+	}
+
+	if docrash {
+		crashing++
+		if crashing < mcount()-int32(extraMCount) {
+			// There are other m's that need to dump their stacks.
+			// Relay SIGQUIT to the next m by sending it to the current process.
+			// All m's that have already received SIGQUIT have signal masks blocking
+			// receipt of any signals, so the SIGQUIT will go to an m that hasn't seen it yet.
+			// When the last m receives the SIGQUIT, it will fall through to the call to
+			// crash below. Just in case the relaying gets botched, each m involved in
+			// the relay sleeps for 5 seconds and then does the crash/exit itself.
+			// In expected operation, the last m has received the SIGQUIT and run
+			// crash/exit and the process is gone, all long before any of the
+			// 5-second sleeps have finished.
+			print("\n-----\n\n")
+			raiseproc(_SIGQUIT)
+			usleep(5 * 1000 * 1000)
+		}
+		crash()
+	}
+
+	printDebugLog()
+
+	exit(2)
+}
+
 // sigpanic turns a synchronous signal into a run-time panic.
 // If the signal handler sees a synchronous panic, it arranges the
 // stack to look like the function where the signal occurred called
@@ -551,11 +821,22 @@
 	throw("signal received during fork")
 }
 
+var badginsignalMsg = "fatal: bad g in signal handler\n"
+
 // This runs on a foreign stack, without an m or a g. No stack split.
 //go:nosplit
 //go:norace
 //go:nowritebarrierrec
 func badsignal(sig uintptr, c *sigctxt) {
+	if !iscgo && !cgoHasExtraM {
+		// There is no extra M. needm will not be able to grab
+		// an M. Instead of hanging, just crash.
+		// Cannot call split-stack function as there is no G.
+		s := stringStructOf(&badginsignalMsg)
+		write(2, s.str, int32(s.len))
+		exit(2)
+		*(*uintptr)(unsafe.Pointer(uintptr(123))) = 2
+	}
 	needm(0)
 	if !sigsend(uint32(sig)) {
 		// A foreign thread received the signal sig, and the
@@ -596,6 +877,13 @@
 		return true
 	}
 
+	// This function and its caller sigtrampgo assumes SIGPIPE is delivered on the
+	// originating thread. This property does not hold on macOS (golang.org/issue/33384),
+	// so we have no choice but to ignore SIGPIPE.
+	if GOOS == "darwin" && sig == _SIGPIPE {
+		return true
+	}
+
 	// If there is no handler to forward to, no need to forward.
 	if fwdFn == _SIG_DFL {
 		return false
@@ -610,8 +898,9 @@
 		return false
 	}
 	// Determine if the signal occurred inside Go code. We test that:
-	//   (1) we were in a goroutine (i.e., m.curg != nil), and
-	//   (2) we weren't in CGO.
+	//   (1) we weren't in VDSO page,
+	//   (2) we were in a goroutine (i.e., m.curg != nil), and
+	//   (3) we weren't in CGO.
 	g := getg()
 	if g != nil && g.m != nil && g.m.curg != nil && !g.m.incgo {
 		return false
@@ -687,13 +976,15 @@
 // stack to the gsignal stack. If the alternate signal stack is set
 // for the thread (the case when a non-Go thread sets the alternate
 // signal stack and then calls a Go function) then set the gsignal
-// stack to the alternate signal stack. Record which choice was made
-// in newSigstack, so that it can be undone in unminit.
+// stack to the alternate signal stack. We also set the alternate
+// signal stack to the gsignal stack if cgo is not used (regardless
+// of whether it is already set). Record which choice was made in
+// newSigstack, so that it can be undone in unminit.
 func minitSignalStack() {
 	_g_ := getg()
 	var st _stack_t
 	sigaltstack(nil, &st)
-	if st.ss_flags&_SS_DISABLE != 0 {
+	if st.ss_flags&_SS_DISABLE != 0 || !iscgo {
 		signalstack(_g_.m.gsignalstack, _g_.m.gsignalstacksize)
 		_g_.m.newSigstack = true
 	} else {
diff --git a/libgo/go/runtime/signal_windows_test.go b/libgo/go/runtime/signal_windows_test.go
new file mode 100644
index 0000000..9748403
--- /dev/null
+++ b/libgo/go/runtime/signal_windows_test.go
@@ -0,0 +1,61 @@
+// +build windows
+
+package runtime_test
+
+import (
+	"internal/testenv"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"testing"
+)
+
+func TestVectoredHandlerDontCrashOnLibrary(t *testing.T) {
+	if *flagQuick {
+		t.Skip("-quick")
+	}
+	if runtime.GOARCH != "amd64" {
+		t.Skip("this test can only run on windows/amd64")
+	}
+	testenv.MustHaveGoBuild(t)
+	testenv.MustHaveExecPath(t, "gcc")
+	testprog.Lock()
+	defer testprog.Unlock()
+	dir, err := ioutil.TempDir("", "go-build")
+	if err != nil {
+		t.Fatalf("failed to create temp directory: %v", err)
+	}
+	defer os.RemoveAll(dir)
+
+	// build go dll
+	dll := filepath.Join(dir, "testwinlib.dll")
+	cmd := exec.Command(testenv.GoToolPath(t), "build", "-o", dll, "--buildmode", "c-shared", "testdata/testwinlib/main.go")
+	out, err := testenv.CleanCmdEnv(cmd).CombinedOutput()
+	if err != nil {
+		t.Fatalf("failed to build go library: %s\n%s", err, out)
+	}
+
+	// build c program
+	exe := filepath.Join(dir, "test.exe")
+	cmd = exec.Command("gcc", "-L"+dir, "-I"+dir, "-ltestwinlib", "-o", exe, "testdata/testwinlib/main.c")
+	out, err = testenv.CleanCmdEnv(cmd).CombinedOutput()
+	if err != nil {
+		t.Fatalf("failed to build c exe: %s\n%s", err, out)
+	}
+
+	// run test program
+	cmd = exec.Command(exe)
+	out, err = testenv.CleanCmdEnv(cmd).CombinedOutput()
+	if err != nil {
+		t.Fatalf("failure while running executable: %s\n%s", err, out)
+	}
+	expectedOutput := "exceptionCount: 1\ncontinueCount: 1\n"
+	// cleaning output
+	cleanedOut := strings.ReplaceAll(string(out), "\r\n", "\n")
+	if cleanedOut != expectedOutput {
+		t.Errorf("expected output %q, got %q", expectedOutput, cleanedOut)
+	}
+}
diff --git a/libgo/go/runtime/sizeof_test.go b/libgo/go/runtime/sizeof_test.go
index ecda82a..d829c58 100644
--- a/libgo/go/runtime/sizeof_test.go
+++ b/libgo/go/runtime/sizeof_test.go
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !nacl
-
 package runtime_test
 
 import (
diff --git a/libgo/go/runtime/slice.go b/libgo/go/runtime/slice.go
index 49d5a86..b61c2b1 100644
--- a/libgo/go/runtime/slice.go
+++ b/libgo/go/runtime/slice.go
@@ -26,7 +26,7 @@
 	cap   int
 }
 
-// An notInHeapSlice is a slice backed by go:notinheap memory.
+// A notInHeapSlice is a slice backed by go:notinheap memory.
 type notInHeapSlice struct {
 	array *notInHeap
 	len   int
diff --git a/libgo/go/runtime/stack_test.go b/libgo/go/runtime/stack_test.go
index 6ed65e8..169dde2 100644
--- a/libgo/go/runtime/stack_test.go
+++ b/libgo/go/runtime/stack_test.go
@@ -116,6 +116,13 @@
 	wg.Add(1)
 	go func() {
 		defer wg.Done()
+
+		if Compiler == "gccgo" && !*Pusestackmaps {
+			// This test is flaky for gccgo's
+			// conservative stack scanning.
+			return
+		}
+
 		done := make(chan bool)
 		var startTime time.Time
 		var started, progress uint32
@@ -599,9 +606,6 @@
 	return pc[:Callers(0, pc)]
 }
 
-// The noinline prevents this function from being inlined
-// into a wrapper. TODO: remove this when issue 28640 is fixed.
-//go:noinline
 func (s structWithMethod) stack() string {
 	buf := make([]byte, 4<<10)
 	return string(buf[:Stack(buf, false)])
diff --git a/libgo/go/runtime/string.go b/libgo/go/runtime/string.go
index 741b6b4..df4cae7 100644
--- a/libgo/go/runtime/string.go
+++ b/libgo/go/runtime/string.go
@@ -508,3 +508,37 @@
 func __go_string_to_byte_array(s string) []byte {
 	return stringtoslicebyte(nil, s)
 }
+
+// parseRelease parses a dot-separated version number. It follows the
+// semver syntax, but allows the minor and patch versions to be
+// elided.
+func parseRelease(rel string) (major, minor, patch int, ok bool) {
+	// Strip anything after a dash or plus.
+	for i := 0; i < len(rel); i++ {
+		if rel[i] == '-' || rel[i] == '+' {
+			rel = rel[:i]
+			break
+		}
+	}
+
+	next := func() (int, bool) {
+		for i := 0; i < len(rel); i++ {
+			if rel[i] == '.' {
+				ver, ok := atoi(rel[:i])
+				rel = rel[i+1:]
+				return ver, ok
+			}
+		}
+		ver, ok := atoi(rel)
+		rel = ""
+		return ver, ok
+	}
+	if major, ok = next(); !ok || rel == "" {
+		return
+	}
+	if minor, ok = next(); !ok || rel == "" {
+		return
+	}
+	patch, ok = next()
+	return
+}
diff --git a/libgo/go/runtime/string_test.go b/libgo/go/runtime/string_test.go
index ec83bb4..e388f70 100644
--- a/libgo/go/runtime/string_test.go
+++ b/libgo/go/runtime/string_test.go
@@ -462,3 +462,34 @@
 		}
 	}
 }
+
+type parseReleaseTest struct {
+	in                  string
+	major, minor, patch int
+}
+
+var parseReleaseTests = []parseReleaseTest{
+	{"", -1, -1, -1},
+	{"x", -1, -1, -1},
+	{"5", 5, 0, 0},
+	{"5.12", 5, 12, 0},
+	{"5.12-x", 5, 12, 0},
+	{"5.12.1", 5, 12, 1},
+	{"5.12.1-x", 5, 12, 1},
+	{"5.12.1.0", 5, 12, 1},
+	{"5.20496382327982653440", -1, -1, -1},
+}
+
+func TestParseRelease(t *testing.T) {
+	for _, test := range parseReleaseTests {
+		major, minor, patch, ok := runtime.ParseRelease(test.in)
+		if !ok {
+			major, minor, patch = -1, -1, -1
+		}
+		if test.major != major || test.minor != minor || test.patch != patch {
+			t.Errorf("parseRelease(%q) = (%v, %v, %v) want (%v, %v, %v)",
+				test.in, major, minor, patch,
+				test.major, test.minor, test.patch)
+		}
+	}
+}
diff --git a/libgo/go/runtime/stubs.go b/libgo/go/runtime/stubs.go
index a2e1530..ae6134d 100644
--- a/libgo/go/runtime/stubs.go
+++ b/libgo/go/runtime/stubs.go
@@ -240,11 +240,16 @@
 	return 0
 }
 
-// round n up to a multiple of a.  a must be a power of 2.
-func round(n, a uintptr) uintptr {
+// alignUp rounds n up to a multiple of a. a must be a power of 2.
+func alignUp(n, a uintptr) uintptr {
 	return (n + a - 1) &^ (a - 1)
 }
 
+// alignDown rounds n down to a multiple of a. a must be a power of 2.
+func alignDown(n, a uintptr) uintptr {
+	return n &^ (a - 1)
+}
+
 // checkASM returns whether assembly runtime checks have passed.
 func checkASM() bool {
 	return true
diff --git a/libgo/go/runtime/stubs2.go b/libgo/go/runtime/stubs2.go
index dcbbffa..454afee 100644
--- a/libgo/go/runtime/stubs2.go
+++ b/libgo/go/runtime/stubs2.go
@@ -4,23 +4,27 @@
 
 // +build !plan9
 // +build !windows
-// +build !nacl
 // +build !js
 
 package runtime
 
 import "unsafe"
 
+// read calls the read system call.
+// It returns a non-negative number of bytes written or a negative errno value.
 //go:noescape
 func read(fd int32, p unsafe.Pointer, n int32) int32
+
 func closefd(fd int32) int32
 
 //extern exit
 func exit(code int32)
 func usleep(usec uint32)
 
+// write calls the write system call.
+// It returns a non-negative number of bytes written or a negative errno value.
 //go:noescape
-func write(fd uintptr, p unsafe.Pointer, n int32) int32
+func write1(fd uintptr, p unsafe.Pointer, n int32) int32
 
 //go:noescape
 func open(name *byte, mode, perm int32) int32
diff --git a/libgo/go/runtime/stubs3.go b/libgo/go/runtime/stubs3.go
index d339787..35feb10 100644
--- a/libgo/go/runtime/stubs3.go
+++ b/libgo/go/runtime/stubs3.go
@@ -4,4 +4,4 @@
 
 package runtime
 
-func nanotime() int64
+func nanotime1() int64
diff --git a/libgo/go/runtime/symtab.go b/libgo/go/runtime/symtab.go
index a2ecf38..5dd3894 100644
--- a/libgo/go/runtime/symtab.go
+++ b/libgo/go/runtime/symtab.go
@@ -79,7 +79,7 @@
 
 	// Subtract 1 from PC to undo the 1 we added in callback in
 	// go-callers.c.
-	function, file, line, _ := funcfileline(pc-1, int32(i))
+	function, file, line, _ := funcfileline(pc-1, int32(i), more)
 	if function == "" && file == "" {
 		return Frame{}, more
 	}
@@ -127,7 +127,7 @@
 // the a *Func describing the innermost function, but with an entry
 // of the outermost function.
 func FuncForPC(pc uintptr) *Func {
-	name, _, _, _ := funcfileline(pc, -1)
+	name, _, _, _ := funcfileline(pc, -1, false)
 	if name == "" {
 		return nil
 	}
@@ -156,7 +156,7 @@
 // The result will not be accurate if pc is not a program
 // counter within f.
 func (f *Func) FileLine(pc uintptr) (file string, line int) {
-	_, file, line, _ = funcfileline(pc, -1)
+	_, file, line, _ = funcfileline(pc, -1, false)
 	return file, line
 }
 
@@ -230,5 +230,5 @@
 }
 
 // implemented in go-caller.c
-func funcfileline(uintptr, int32) (string, string, int, int)
+func funcfileline(uintptr, int32, bool) (string, string, int, int)
 func funcentry(uintptr) uintptr
diff --git a/libgo/go/runtime/testdata/testfaketime/faketime.go b/libgo/go/runtime/testdata/testfaketime/faketime.go
new file mode 100644
index 0000000..1fb15eb
--- /dev/null
+++ b/libgo/go/runtime/testdata/testfaketime/faketime.go
@@ -0,0 +1,28 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Test faketime support. This is its own test program because we have
+// to build it with custom build tags and hence want to minimize
+// dependencies.
+
+package main
+
+import (
+	"os"
+	"time"
+)
+
+func main() {
+	println("line 1")
+	// Stream switch, increments time
+	os.Stdout.WriteString("line 2\n")
+	os.Stdout.WriteString("line 3\n")
+	// Stream switch, increments time
+	os.Stderr.WriteString("line 4\n")
+	// Time jump
+	time.Sleep(1 * time.Second)
+	os.Stdout.WriteString("line 5\n")
+	// Print the current time.
+	os.Stdout.WriteString(time.Now().UTC().Format(time.RFC3339))
+}
diff --git a/libgo/go/runtime/testdata/testprog/deadlock.go b/libgo/go/runtime/testdata/testprog/deadlock.go
index 5f0d120..105d6a5 100644
--- a/libgo/go/runtime/testdata/testprog/deadlock.go
+++ b/libgo/go/runtime/testdata/testprog/deadlock.go
@@ -22,6 +22,9 @@
 	register("StackOverflow", StackOverflow)
 	register("ThreadExhaustion", ThreadExhaustion)
 	register("RecursivePanic", RecursivePanic)
+	register("RecursivePanic2", RecursivePanic2)
+	register("RecursivePanic3", RecursivePanic3)
+	register("RecursivePanic4", RecursivePanic4)
 	register("GoexitExit", GoexitExit)
 	register("GoNil", GoNil)
 	register("MainGoroutineID", MainGoroutineID)
@@ -29,6 +32,8 @@
 	register("GoexitInPanic", GoexitInPanic)
 	register("PanicAfterGoexit", PanicAfterGoexit)
 	register("RecoveredPanicAfterGoexit", RecoveredPanicAfterGoexit)
+	register("RecoverBeforePanicAfterGoexit", RecoverBeforePanicAfterGoexit)
+	register("RecoverBeforePanicAfterGoexit2", RecoverBeforePanicAfterGoexit2)
 	register("PanicTraceback", PanicTraceback)
 	register("GoschedInPanic", GoschedInPanic)
 	register("SyscallInPanic", SyscallInPanic)
@@ -111,6 +116,50 @@
 	panic("again")
 }
 
+// Same as RecursivePanic, but do the first recover and the second panic in
+// separate defers, and make sure they are executed in the correct order.
+func RecursivePanic2() {
+	func() {
+		defer func() {
+			fmt.Println(recover())
+		}()
+		var x [8192]byte
+		func(x [8192]byte) {
+			defer func() {
+				panic("second panic")
+			}()
+			defer func() {
+				fmt.Println(recover())
+			}()
+			panic("first panic")
+		}(x)
+	}()
+	panic("third panic")
+}
+
+// Make sure that the first panic finished as a panic, even though the second
+// panic was recovered
+func RecursivePanic3() {
+	defer func() {
+		defer func() {
+			recover()
+		}()
+		panic("second panic")
+	}()
+	panic("first panic")
+}
+
+// Test case where a single defer recovers one panic but starts another panic. If
+// the second panic is never recovered, then the recovered first panic will still
+// appear on the panic stack (labeled '[recovered]') and the runtime stack.
+func RecursivePanic4() {
+	defer func() {
+		recover()
+		panic("second panic")
+	}()
+	panic("first panic")
+}
+
 func GoexitExit() {
 	println("t1")
 	go func() {
@@ -202,6 +251,50 @@
 	runtime.Goexit()
 }
 
+func RecoverBeforePanicAfterGoexit() {
+	// 1. defer a function that recovers
+	// 2. defer a function that panics
+	// 3. call goexit
+	// Goexit runs the #2 defer. Its panic
+	// is caught by the #1 defer.  For Goexit, we explicitly
+	// resume execution in the Goexit loop, instead of resuming
+	// execution in the caller (which would make the Goexit disappear!)
+	defer func() {
+		r := recover()
+		if r == nil {
+			panic("bad recover")
+		}
+	}()
+	defer func() {
+		panic("hello")
+	}()
+	runtime.Goexit()
+}
+
+func RecoverBeforePanicAfterGoexit2() {
+	for i := 0; i < 2; i++ {
+		defer func() {
+		}()
+	}
+	// 1. defer a function that recovers
+	// 2. defer a function that panics
+	// 3. call goexit
+	// Goexit runs the #2 defer. Its panic
+	// is caught by the #1 defer.  For Goexit, we explicitly
+	// resume execution in the Goexit loop, instead of resuming
+	// execution in the caller (which would make the Goexit disappear!)
+	defer func() {
+		r := recover()
+		if r == nil {
+			panic("bad recover")
+		}
+	}()
+	defer func() {
+		panic("hello")
+	}()
+	runtime.Goexit()
+}
+
 func PanicTraceback() {
 	pt1()
 }
diff --git a/libgo/go/runtime/testdata/testprog/gc.go b/libgo/go/runtime/testdata/testprog/gc.go
index 3fd1cd8..cc16413 100644
--- a/libgo/go/runtime/testdata/testprog/gc.go
+++ b/libgo/go/runtime/testdata/testprog/gc.go
@@ -27,7 +27,6 @@
 	runtime.GC()
 	runtime.ReadMemStats(memstats)
 	sys := memstats.Sys
-	fmt.Printf("original sys: %#x\n", sys)
 
 	runtime.MemProfileRate = 0 // disable profiler
 
@@ -39,8 +38,6 @@
 	// Should only be using a few MB.
 	// We allocated 100 MB or (if not short) 1 GB.
 	runtime.ReadMemStats(memstats)
-	fmt.Printf("final sys: %#x\n", memstats.Sys)
-	fmt.Printf("%#v\n", *memstats)
 	if sys > memstats.Sys {
 		sys = 0
 	} else {
@@ -150,9 +147,20 @@
 		size    = 4 << 20
 		split   = 64 << 10
 		objects = 2
+
+		// The page cache could hide 64 8-KiB pages from the scavenger today.
+		maxPageCache = (8 << 10) * 64
 	)
 	// Set GOGC so that this test operates under consistent assumptions.
 	debug.SetGCPercent(100)
+	// Reduce GOMAXPROCS down to 4 if it's greater. We need to bound the amount
+	// of memory held in the page cache because the scavenger can't reach it.
+	// The page cache will hold at most maxPageCache of memory per-P, so this
+	// bounds the amount of memory hidden from the scavenger to 4*maxPageCache.
+	procs := runtime.GOMAXPROCS(-1)
+	if procs > 4 {
+		defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(4))
+	}
 	// Save objects which we want to survive, and condemn objects which we don't.
 	// Note that we condemn objects in this way and release them all at once in
 	// order to avoid having the GC start freeing up these objects while the loop
@@ -200,10 +208,22 @@
 	// Since the runtime should scavenge the entirety of the remaining holes,
 	// theoretically there should be no more free and unscavenged memory. However due
 	// to other allocations that happen during this test we may still see some physical
-	// memory over-use. 10% here is an arbitrary but very conservative threshold which
-	// should easily account for any other allocations this test may have done.
+	// memory over-use.
 	overuse := (float64(heapBacked) - float64(stats.HeapAlloc)) / float64(stats.HeapAlloc)
-	if overuse <= 0.10 {
+	// Compute the threshold.
+	//
+	// In theory, this threshold should just be zero, but that's not possible in practice.
+	// Firstly, the runtime's page cache can hide up to maxPageCache of free memory from the
+	// scavenger per P. To account for this, we increase the threshold by the ratio between the
+	// total amount the runtime could hide from the scavenger to the amount of memory we expect
+	// to be able to scavenge here, which is (size-split)*objects. This computation is the crux
+	// GOMAXPROCS above; if GOMAXPROCS is too high the threshold just becomes 100%+ since the
+	// amount of memory being allocated is fixed. Then we add 5% to account for noise, such as
+	// other allocations this test may have performed that we don't explicitly account for The
+	// baseline threshold here is around 11% for GOMAXPROCS=1, capping out at around 30% for
+	// GOMAXPROCS=4.
+	threshold := 0.05 + float64(procs)*maxPageCache/float64((size-split)*objects)
+	if overuse <= threshold {
 		fmt.Println("OK")
 		return
 	}
@@ -213,8 +233,8 @@
 	// In the context of this test, this indicates a large amount of
 	// fragmentation with physical pages that are otherwise unused but not
 	// returned to the OS.
-	fmt.Printf("exceeded physical memory overuse threshold of 10%%: %3.2f%%\n"+
-		"(alloc: %d, goal: %d, sys: %d, rel: %d, objs: %d)\n", overuse*100,
+	fmt.Printf("exceeded physical memory overuse threshold of %3.2f%%: %3.2f%%\n"+
+		"(alloc: %d, goal: %d, sys: %d, rel: %d, objs: %d)\n", threshold*100, overuse*100,
 		stats.HeapAlloc, stats.NextGC, stats.HeapSys, stats.HeapReleased, len(saved))
 	runtime.KeepAlive(saved)
 }
diff --git a/libgo/go/runtime/testdata/testprog/preempt.go b/libgo/go/runtime/testdata/testprog/preempt.go
new file mode 100644
index 0000000..1c74d0e
--- /dev/null
+++ b/libgo/go/runtime/testdata/testprog/preempt.go
@@ -0,0 +1,71 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"runtime"
+	"runtime/debug"
+	"sync/atomic"
+)
+
+func init() {
+	register("AsyncPreempt", AsyncPreempt)
+}
+
+func AsyncPreempt() {
+	// Run with just 1 GOMAXPROCS so the runtime is required to
+	// use scheduler preemption.
+	runtime.GOMAXPROCS(1)
+	// Disable GC so we have complete control of what we're testing.
+	debug.SetGCPercent(-1)
+
+	// Start a goroutine with no sync safe-points.
+	var ready, ready2 uint32
+	go func() {
+		for {
+			atomic.StoreUint32(&ready, 1)
+			dummy()
+			dummy()
+		}
+	}()
+	// Also start one with a frameless function.
+	// This is an especially interesting case for
+	// LR machines.
+	go func() {
+		atomic.AddUint32(&ready2, 1)
+		frameless()
+	}()
+	// Also test empty infinite loop.
+	go func() {
+		atomic.AddUint32(&ready2, 1)
+		for {
+		}
+	}()
+
+	// Wait for the goroutine to stop passing through sync
+	// safe-points.
+	for atomic.LoadUint32(&ready) == 0 || atomic.LoadUint32(&ready2) < 2 {
+		runtime.Gosched()
+	}
+
+	// Run a GC, which will have to stop the goroutine for STW and
+	// for stack scanning. If this doesn't work, the test will
+	// deadlock and timeout.
+	runtime.GC()
+
+	println("OK")
+}
+
+//go:noinline
+func frameless() {
+	for i := int64(0); i < 1<<62; i++ {
+		out += i * i * i * i * i * 12345
+	}
+}
+
+var out int64
+
+//go:noinline
+func dummy() {}
diff --git a/libgo/go/runtime/testdata/testprog/signal.go b/libgo/go/runtime/testdata/testprog/signal.go
index 2ccbada..417e105 100644
--- a/libgo/go/runtime/testdata/testprog/signal.go
+++ b/libgo/go/runtime/testdata/testprog/signal.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !windows,!plan9,!nacl
+// +build !windows,!plan9
 
 package main
 
diff --git a/libgo/go/runtime/testdata/testprog/vdso.go b/libgo/go/runtime/testdata/testprog/vdso.go
new file mode 100644
index 0000000..ef92f48
--- /dev/null
+++ b/libgo/go/runtime/testdata/testprog/vdso.go
@@ -0,0 +1,55 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Invoke signal hander in the VDSO context (see issue 32912).
+
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"runtime/pprof"
+	"time"
+)
+
+func init() {
+	register("SignalInVDSO", signalInVDSO)
+}
+
+func signalInVDSO() {
+	f, err := ioutil.TempFile("", "timeprofnow")
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(2)
+	}
+
+	if err := pprof.StartCPUProfile(f); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(2)
+	}
+
+	t0 := time.Now()
+	t1 := t0
+	// We should get a profiling signal 100 times a second,
+	// so running for 1 second should be sufficient.
+	for t1.Sub(t0) < time.Second {
+		t1 = time.Now()
+	}
+
+	pprof.StopCPUProfile()
+
+	name := f.Name()
+	if err := f.Close(); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(2)
+	}
+
+	if err := os.Remove(name); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(2)
+	}
+
+	fmt.Println("success")
+}
diff --git a/libgo/go/runtime/testdata/testprogcgo/bigstack_windows.c b/libgo/go/runtime/testdata/testprogcgo/bigstack_windows.c
new file mode 100644
index 0000000..cd85ac8
--- /dev/null
+++ b/libgo/go/runtime/testdata/testprogcgo/bigstack_windows.c
@@ -0,0 +1,46 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This test source is used by both TestBigStackCallbackCgo (linked
+// directly into the Go binary) and TestBigStackCallbackSyscall
+// (compiled into a DLL).
+
+#include <windows.h>
+#include <stdio.h>
+
+#ifndef STACK_SIZE_PARAM_IS_A_RESERVATION
+#define STACK_SIZE_PARAM_IS_A_RESERVATION 0x00010000
+#endif
+
+typedef void callback(char*);
+
+// Allocate a stack that's much larger than the default.
+static const int STACK_SIZE = 16<<20;
+
+static callback *bigStackCallback;
+
+static void useStack(int bytes) {
+	// Windows doesn't like huge frames, so we grow the stack 64k at a time.
+	char x[64<<10];
+	if (bytes < sizeof x) {
+		bigStackCallback(x);
+	} else {
+		useStack(bytes - sizeof x);
+	}
+}
+
+static DWORD WINAPI threadEntry(LPVOID lpParam) {
+	useStack(STACK_SIZE - (128<<10));
+	return 0;
+}
+
+void bigStack(callback *cb) {
+	bigStackCallback = cb;
+	HANDLE hThread = CreateThread(NULL, STACK_SIZE, threadEntry, NULL, STACK_SIZE_PARAM_IS_A_RESERVATION, NULL);
+	if (hThread == NULL) {
+		fprintf(stderr, "CreateThread failed\n");
+		exit(1);
+	}
+	WaitForSingleObject(hThread, INFINITE);
+}
diff --git a/libgo/go/runtime/testdata/testprogcgo/numgoroutine.go b/libgo/go/runtime/testdata/testprogcgo/numgoroutine.go
index 68f1738..b7134a4 100644
--- a/libgo/go/runtime/testdata/testprogcgo/numgoroutine.go
+++ b/libgo/go/runtime/testdata/testprogcgo/numgoroutine.go
@@ -41,13 +41,6 @@
 	// Test that there are just the expected number of goroutines
 	// running. Specifically, test that the spare M's goroutine
 	// doesn't show up.
-	//
-	// On non-Windows platforms there's a signal handling thread
-	// started by os/signal.init in addition to the main
-	// goroutine.
-	if runtime.GOOS != "windows" {
-		baseGoroutines = 1
-	}
 	if _, ok := checkNumGoroutine("first", 1+baseGoroutines); !ok {
 		return
 	}
diff --git a/libgo/go/runtime/testdata/testprognet/signal.go b/libgo/go/runtime/testdata/testprognet/signal.go
index a1559fe..4d2de79 100644
--- a/libgo/go/runtime/testdata/testprognet/signal.go
+++ b/libgo/go/runtime/testdata/testprognet/signal.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !windows,!plan9,!nacl
+// +build !windows,!plan9
 
 // This is in testprognet instead of testprog because testprog
 // must not import anything (like net, but also like os/signal)
diff --git a/libgo/go/runtime/testdata/testwinlib/main.c b/libgo/go/runtime/testdata/testwinlib/main.c
new file mode 100644
index 0000000..e84a32f
--- /dev/null
+++ b/libgo/go/runtime/testdata/testwinlib/main.c
@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <windows.h>
+#include "testwinlib.h"
+
+int exceptionCount;
+int continueCount;
+LONG WINAPI customExceptionHandlder(struct _EXCEPTION_POINTERS *ExceptionInfo)
+{
+    if (ExceptionInfo->ExceptionRecord->ExceptionCode == EXCEPTION_BREAKPOINT)
+    {
+        exceptionCount++;
+        // prepare context to resume execution
+        CONTEXT *c = ExceptionInfo->ContextRecord;
+        c->Rip = *(ULONG_PTR *)c->Rsp;
+        c->Rsp += 8;
+        return EXCEPTION_CONTINUE_EXECUTION;
+    }
+    return EXCEPTION_CONTINUE_SEARCH;
+}
+LONG WINAPI customContinueHandlder(struct _EXCEPTION_POINTERS *ExceptionInfo)
+{
+    if (ExceptionInfo->ExceptionRecord->ExceptionCode == EXCEPTION_BREAKPOINT)
+    {
+        continueCount++;
+        return EXCEPTION_CONTINUE_EXECUTION;
+    }
+    return EXCEPTION_CONTINUE_SEARCH;
+}
+
+void throwFromC()
+{
+    DebugBreak();
+}
+int main()
+{
+    // simulate a "lazily" attached debugger, by calling some go code before attaching the exception/continue handler
+    Dummy();
+    exceptionCount = 0;
+    continueCount = 0;
+    void *exceptionHandlerHandle = AddVectoredExceptionHandler(0, customExceptionHandlder);
+    if (NULL == exceptionHandlerHandle)
+    {
+        printf("cannot add vectored exception handler\n");
+        return 2;
+    }
+    void *continueHandlerHandle = AddVectoredContinueHandler(0, customContinueHandlder);
+    if (NULL == continueHandlerHandle)
+    {
+        printf("cannot add vectored continue handler\n");
+        return 2;
+    }
+    CallMeBack(throwFromC);
+    RemoveVectoredContinueHandler(continueHandlerHandle);
+    RemoveVectoredExceptionHandler(exceptionHandlerHandle);
+    printf("exceptionCount: %d\ncontinueCount: %d\n", exceptionCount, continueCount);
+    return 0;
+}
\ No newline at end of file
diff --git a/libgo/go/runtime/testdata/testwinlib/main.go b/libgo/go/runtime/testdata/testwinlib/main.go
new file mode 100644
index 0000000..400eaa1
--- /dev/null
+++ b/libgo/go/runtime/testdata/testwinlib/main.go
@@ -0,0 +1,28 @@
+// +build windows,cgo
+
+package main
+
+// #include <windows.h>
+// typedef void(*callmeBackFunc)();
+// static void bridgeCallback(callmeBackFunc callback) {
+//	callback();
+//}
+import "C"
+
+// CallMeBack call backs C code.
+//export CallMeBack
+func CallMeBack(callback C.callmeBackFunc) {
+	C.bridgeCallback(callback)
+}
+
+// Dummy is called by the C code before registering the exception/continue handlers simulating a debugger.
+// This makes sure that the Go runtime's lastcontinuehandler is reached before the C continue handler and thus,
+// validate that it does not crash the program before another handler could take an action.
+// The idea here is to reproduce what happens when you attach a debugger to a running program.
+// It also simulate the behavior of the .Net debugger, which register its exception/continue handlers lazily.
+//export Dummy
+func Dummy() int {
+	return 42
+}
+
+func main() {}
diff --git a/libgo/go/runtime/time.go b/libgo/go/runtime/time.go
index 71e7556..ded68ed 100644
--- a/libgo/go/runtime/time.go
+++ b/libgo/go/runtime/time.go
@@ -7,17 +7,17 @@
 package runtime
 
 import (
-	"internal/cpu"
+	"runtime/internal/atomic"
 	"unsafe"
 )
 
 // Package time knows the layout of this structure.
 // If this struct changes, adjust ../time/sleep.go:/runtimeTimer.
-// For GOOS=nacl, package syscall knows the layout of this structure.
-// If this struct changes, adjust ../syscall/net_nacl.go:/runtimeTimer.
 type timer struct {
-	tb *timersBucket // the bucket the timer lives in
-	i  int           // heap index
+	// If this timer is on a heap, which P's heap it is on.
+	// puintptr rather than *p to match uintptr in the versions
+	// of this struct defined in other packages.
+	pp puintptr
 
 	// Timer wakes up at when, and then at when+period, ... (period > 0 only)
 	// each time calling f(arg, now) in the timer goroutine, so f must be
@@ -27,52 +27,146 @@
 	f      func(interface{}, uintptr)
 	arg    interface{}
 	seq    uintptr
+
+	// What to set the when field to in timerModifiedXX status.
+	nextwhen int64
+
+	// The status field holds one of the values below.
+	status uint32
 }
 
-// timersLen is the length of timers array.
+// Code outside this file has to be careful in using a timer value.
 //
-// Ideally, this would be set to GOMAXPROCS, but that would require
-// dynamic reallocation
+// The pp, status, and nextwhen fields may only be used by code in this file.
 //
-// The current value is a compromise between memory usage and performance
-// that should cover the majority of GOMAXPROCS values used in the wild.
-const timersLen = 64
-
-// timers contains "per-P" timer heaps.
+// Code that creates a new timer value can set the when, period, f,
+// arg, and seq fields.
+// A new timer value may be passed to addtimer (called by time.startTimer).
+// After doing that no fields may be touched.
 //
-// Timers are queued into timersBucket associated with the current P,
-// so each P may work with its own timers independently of other P instances.
+// An active timer (one that has been passed to addtimer) may be
+// passed to deltimer (time.stopTimer), after which it is no longer an
+// active timer. It is an inactive timer.
+// In an inactive timer the period, f, arg, and seq fields may be modified,
+// but not the when field.
+// It's OK to just drop an inactive timer and let the GC collect it.
+// It's not OK to pass an inactive timer to addtimer.
+// Only newly allocated timer values may be passed to addtimer.
 //
-// Each timersBucket may be associated with multiple P
-// if GOMAXPROCS > timersLen.
-var timers [timersLen]struct {
-	timersBucket
+// An active timer may be passed to modtimer. No fields may be touched.
+// It remains an active timer.
+//
+// An inactive timer may be passed to resettimer to turn into an
+// active timer with an updated when field.
+// It's OK to pass a newly allocated timer value to resettimer.
+//
+// Timer operations are addtimer, deltimer, modtimer, resettimer,
+// cleantimers, adjusttimers, and runtimer.
+//
+// We don't permit calling addtimer/deltimer/modtimer/resettimer simultaneously,
+// but adjusttimers and runtimer can be called at the same time as any of those.
+//
+// Active timers live in heaps attached to P, in the timers field.
+// Inactive timers live there too temporarily, until they are removed.
+//
+// addtimer:
+//   timerNoStatus   -> timerWaiting
+//   anything else   -> panic: invalid value
+// deltimer:
+//   timerWaiting    -> timerDeleted
+//   timerModifiedXX -> timerDeleted
+//   timerNoStatus   -> do nothing
+//   timerDeleted    -> do nothing
+//   timerRemoving   -> do nothing
+//   timerRemoved    -> do nothing
+//   timerRunning    -> wait until status changes
+//   timerMoving     -> wait until status changes
+//   timerModifying  -> panic: concurrent deltimer/modtimer calls
+// modtimer:
+//   timerWaiting    -> timerModifying -> timerModifiedXX
+//   timerModifiedXX -> timerModifying -> timerModifiedYY
+//   timerNoStatus   -> timerWaiting
+//   timerRemoved    -> timerWaiting
+//   timerRunning    -> wait until status changes
+//   timerMoving     -> wait until status changes
+//   timerRemoving   -> wait until status changes
+//   timerDeleted    -> panic: concurrent modtimer/deltimer calls
+//   timerModifying  -> panic: concurrent modtimer calls
+// resettimer:
+//   timerNoStatus   -> timerWaiting
+//   timerRemoved    -> timerWaiting
+//   timerDeleted    -> timerModifying -> timerModifiedXX
+//   timerRemoving   -> wait until status changes
+//   timerRunning    -> wait until status changes
+//   timerWaiting    -> panic: resettimer called on active timer
+//   timerMoving     -> panic: resettimer called on active timer
+//   timerModifiedXX -> panic: resettimer called on active timer
+//   timerModifying  -> panic: resettimer called on active timer
+// cleantimers (looks in P's timer heap):
+//   timerDeleted    -> timerRemoving -> timerRemoved
+//   timerModifiedXX -> timerMoving -> timerWaiting
+// adjusttimers (looks in P's timer heap):
+//   timerDeleted    -> timerRemoving -> timerRemoved
+//   timerModifiedXX -> timerMoving -> timerWaiting
+// runtimer (looks in P's timer heap):
+//   timerNoStatus   -> panic: uninitialized timer
+//   timerWaiting    -> timerWaiting or
+//   timerWaiting    -> timerRunning -> timerNoStatus or
+//   timerWaiting    -> timerRunning -> timerWaiting
+//   timerModifying  -> wait until status changes
+//   timerModifiedXX -> timerMoving -> timerWaiting
+//   timerDeleted    -> timerRemoving -> timerRemoved
+//   timerRunning    -> panic: concurrent runtimer calls
+//   timerRemoved    -> panic: inconsistent timer heap
+//   timerRemoving   -> panic: inconsistent timer heap
+//   timerMoving     -> panic: inconsistent timer heap
 
-	// The padding should eliminate false sharing
-	// between timersBucket values.
-	pad [cpu.CacheLinePadSize - unsafe.Sizeof(timersBucket{})%cpu.CacheLinePadSize]byte
-}
+// Values for the timer status field.
+const (
+	// Timer has no status set yet.
+	timerNoStatus = iota
 
-func (t *timer) assignBucket() *timersBucket {
-	id := uint8(getg().m.p.ptr().id) % timersLen
-	t.tb = &timers[id].timersBucket
-	return t.tb
-}
+	// Waiting for timer to fire.
+	// The timer is in some P's heap.
+	timerWaiting
 
-//go:notinheap
-type timersBucket struct {
-	lock         mutex
-	gp           *g
-	created      bool
-	sleeping     bool
-	rescheduling bool
-	sleepUntil   int64
-	waitnote     note
-	t            []*timer
-}
+	// Running the timer function.
+	// A timer will only have this status briefly.
+	timerRunning
 
-// nacl fake time support - time in nanoseconds since 1970
-var faketime int64
+	// The timer is deleted and should be removed.
+	// It should not be run, but it is still in some P's heap.
+	timerDeleted
+
+	// The timer is being removed.
+	// The timer will only have this status briefly.
+	timerRemoving
+
+	// The timer has been stopped.
+	// It is not in any P's heap.
+	timerRemoved
+
+	// The timer is being modified.
+	// The timer will only have this status briefly.
+	timerModifying
+
+	// The timer has been modified to an earlier time.
+	// The new when value is in the nextwhen field.
+	// The timer is in some P's heap, possibly in the wrong place.
+	timerModifiedEarlier
+
+	// The timer has been modified to the same or a later time.
+	// The new when value is in the nextwhen field.
+	// The timer is in some P's heap, possibly in the wrong place.
+	timerModifiedLater
+
+	// The timer has been modified and is being moved.
+	// The timer will only have this status briefly.
+	timerMoving
+)
+
+// maxWhen is the maximum value for timer's when field.
+const maxWhen = 1<<63 - 1
 
 // Package time APIs.
 // Godoc uses the comments in package time, not these.
@@ -92,17 +186,20 @@
 		t = new(timer)
 		gp.timer = t
 	}
-	*t = timer{}
-	t.when = nanotime() + ns
 	t.f = goroutineReady
 	t.arg = gp
-	tb := t.assignBucket()
-	lock(&tb.lock)
-	if !tb.addtimerLocked(t) {
-		unlock(&tb.lock)
-		badTimer()
-	}
-	goparkunlock(&tb.lock, waitReasonSleep, traceEvGoSleep, 2)
+	t.nextwhen = nanotime() + ns
+	gopark(resetForSleep, unsafe.Pointer(t), waitReasonSleep, traceEvGoSleep, 1)
+}
+
+// resetForSleep is called after the goroutine is parked for timeSleep.
+// We can't call resettimer in timeSleep itself because if this is a short
+// sleep and there are many goroutines then the P can wind up running the
+// timer function, goroutineReady, before the goroutine has been parked.
+func resetForSleep(gp *g, ut unsafe.Pointer) bool {
+	t := (*timer)(ut)
+	resettimer(t, t.nextwhen)
+	return true
 }
 
 // startTimer adds t to the timer heap.
@@ -114,13 +211,22 @@
 	addtimer(t)
 }
 
-// stopTimer removes t from the timer heap if it is there.
-// It returns true if t was removed, false if t wasn't even there.
+// stopTimer stops a timer.
+// It reports whether t was stopped before being run.
 //go:linkname stopTimer time.stopTimer
 func stopTimer(t *timer) bool {
 	return deltimer(t)
 }
 
+// resetTimer resets an inactive timer, adding it to the heap.
+//go:linkname resetTimer time.resetTimer
+func resetTimer(t *timer, when int64) {
+	if raceenabled {
+		racerelease(unsafe.Pointer(t))
+	}
+	resettimer(t, when)
+}
+
 // Go runtime.
 
 // Ready the goroutine arg.
@@ -128,252 +234,714 @@
 	goready(arg.(*g), 0)
 }
 
+// addtimer adds a timer to the current P.
+// This should only be called with a newly created timer.
+// That avoids the risk of changing the when field of a timer in some P's heap,
+// which could cause the heap to become unsorted.
 func addtimer(t *timer) {
-	tb := t.assignBucket()
-	lock(&tb.lock)
-	ok := tb.addtimerLocked(t)
-	unlock(&tb.lock)
-	if !ok {
-		badTimer()
-	}
-}
-
-// Add a timer to the heap and start or kick timerproc if the new timer is
-// earlier than any of the others.
-// Timers are locked.
-// Returns whether all is well: false if the data structure is corrupt
-// due to user-level races.
-func (tb *timersBucket) addtimerLocked(t *timer) bool {
-	// when must never be negative; otherwise timerproc will overflow
+	// when must never be negative; otherwise runtimer will overflow
 	// during its delta calculation and never expire other runtime timers.
 	if t.when < 0 {
-		t.when = 1<<63 - 1
+		t.when = maxWhen
 	}
-	t.i = len(tb.t)
-	tb.t = append(tb.t, t)
-	if !siftupTimer(tb.t, t.i) {
-		return false
+	if t.status != timerNoStatus {
+		badTimer()
 	}
-	if t.i == 0 {
-		// siftup moved to top: new earliest deadline.
-		if tb.sleeping && tb.sleepUntil > t.when {
-			tb.sleeping = false
-			notewakeup(&tb.waitnote)
-		}
-		if tb.rescheduling {
-			tb.rescheduling = false
-			goready(tb.gp, 0)
-		}
-		if !tb.created {
-			tb.created = true
-			expectSystemGoroutine()
-			go timerproc(tb)
-		}
-	}
-	return true
+	t.status = timerWaiting
+
+	addInitializedTimer(t)
 }
 
-// Delete timer t from the heap.
-// Do not need to update the timerproc: if it wakes up early, no big deal.
+// addInitializedTimer adds an initialized timer to the current P.
+func addInitializedTimer(t *timer) {
+	when := t.when
+
+	pp := getg().m.p.ptr()
+	lock(&pp.timersLock)
+	ok := cleantimers(pp) && doaddtimer(pp, t)
+	unlock(&pp.timersLock)
+	if !ok {
+		badTimer()
+	}
+
+	wakeNetPoller(when)
+}
+
+// doaddtimer adds t to the current P's heap.
+// It reports whether it saw no problems due to races.
+// The caller must have locked the timers for pp.
+func doaddtimer(pp *p, t *timer) bool {
+	// Timers rely on the network poller, so make sure the poller
+	// has started.
+	if netpollInited == 0 {
+		netpollGenericInit()
+	}
+
+	if t.pp != 0 {
+		throw("doaddtimer: P already set in timer")
+	}
+	t.pp.set(pp)
+	i := len(pp.timers)
+	pp.timers = append(pp.timers, t)
+	return siftupTimer(pp.timers, i)
+}
+
+// deltimer deletes the timer t. It may be on some other P, so we can't
+// actually remove it from the timers heap. We can only mark it as deleted.
+// It will be removed in due course by the P whose heap it is on.
+// Reports whether the timer was removed before it was run.
 func deltimer(t *timer) bool {
-	if t.tb == nil {
-		// t.tb can be nil if the user created a timer
-		// directly, without invoking startTimer e.g
-		//    time.Ticker{C: c}
-		// In this case, return early without any deletion.
-		// See Issue 21874.
-		return false
-	}
-
-	tb := t.tb
-
-	lock(&tb.lock)
-	removed, ok := tb.deltimerLocked(t)
-	unlock(&tb.lock)
-	if !ok {
-		badTimer()
-	}
-	return removed
-}
-
-func (tb *timersBucket) deltimerLocked(t *timer) (removed, ok bool) {
-	// t may not be registered anymore and may have
-	// a bogus i (typically 0, if generated by Go).
-	// Verify it before proceeding.
-	i := t.i
-	last := len(tb.t) - 1
-	if i < 0 || i > last || tb.t[i] != t {
-		return false, true
-	}
-	if i != last {
-		tb.t[i] = tb.t[last]
-		tb.t[i].i = i
-	}
-	tb.t[last] = nil
-	tb.t = tb.t[:last]
-	ok = true
-	if i != last {
-		if !siftupTimer(tb.t, i) {
-			ok = false
-		}
-		if !siftdownTimer(tb.t, i) {
-			ok = false
-		}
-	}
-	return true, ok
-}
-
-func modtimer(t *timer, when, period int64, f func(interface{}, uintptr), arg interface{}, seq uintptr) {
-	tb := t.tb
-
-	lock(&tb.lock)
-	_, ok := tb.deltimerLocked(t)
-	if ok {
-		t.when = when
-		t.period = period
-		t.f = f
-		t.arg = arg
-		t.seq = seq
-		ok = tb.addtimerLocked(t)
-	}
-	unlock(&tb.lock)
-	if !ok {
-		badTimer()
-	}
-}
-
-// Timerproc runs the time-driven events.
-// It sleeps until the next event in the tb heap.
-// If addtimer inserts a new earlier event, it wakes timerproc early.
-func timerproc(tb *timersBucket) {
-	setSystemGoroutine()
-
-	tb.gp = getg()
 	for {
-		lock(&tb.lock)
-		tb.sleeping = false
-		now := nanotime()
-		delta := int64(-1)
+		switch s := atomic.Load(&t.status); s {
+		case timerWaiting, timerModifiedLater:
+			if atomic.Cas(&t.status, s, timerDeleted) {
+				// Timer was not yet run.
+				return true
+			}
+		case timerModifiedEarlier:
+			tpp := t.pp.ptr()
+			if atomic.Cas(&t.status, s, timerModifying) {
+				atomic.Xadd(&tpp.adjustTimers, -1)
+				if !atomic.Cas(&t.status, timerModifying, timerDeleted) {
+					badTimer()
+				}
+				// Timer was not yet run.
+				return true
+			}
+		case timerDeleted, timerRemoving, timerRemoved:
+			// Timer was already run.
+			return false
+		case timerRunning, timerMoving:
+			// The timer is being run or moved, by a different P.
+			// Wait for it to complete.
+			osyield()
+		case timerNoStatus:
+			// Removing timer that was never added or
+			// has already been run. Also see issue 21874.
+			return false
+		case timerModifying:
+			// Simultaneous calls to deltimer and modtimer.
+			badTimer()
+		default:
+			badTimer()
+		}
+	}
+}
+
+// dodeltimer removes timer i from the current P's heap.
+// We are locked on the P when this is called.
+// It reports whether it saw no problems due to races.
+// The caller must have locked the timers for pp.
+func dodeltimer(pp *p, i int) bool {
+	if t := pp.timers[i]; t.pp.ptr() != pp {
+		throw("dodeltimer: wrong P")
+	} else {
+		t.pp = 0
+	}
+	last := len(pp.timers) - 1
+	if i != last {
+		pp.timers[i] = pp.timers[last]
+	}
+	pp.timers[last] = nil
+	pp.timers = pp.timers[:last]
+	ok := true
+	if i != last {
+		// Moving to i may have moved the last timer to a new parent,
+		// so sift up to preserve the heap guarantee.
+		if !siftupTimer(pp.timers, i) {
+			ok = false
+		}
+		if !siftdownTimer(pp.timers, i) {
+			ok = false
+		}
+	}
+	return ok
+}
+
+// dodeltimer0 removes timer 0 from the current P's heap.
+// We are locked on the P when this is called.
+// It reports whether it saw no problems due to races.
+// The caller must have locked the timers for pp.
+func dodeltimer0(pp *p) bool {
+	if t := pp.timers[0]; t.pp.ptr() != pp {
+		throw("dodeltimer0: wrong P")
+	} else {
+		t.pp = 0
+	}
+	last := len(pp.timers) - 1
+	if last > 0 {
+		pp.timers[0] = pp.timers[last]
+	}
+	pp.timers[last] = nil
+	pp.timers = pp.timers[:last]
+	ok := true
+	if last > 0 {
+		ok = siftdownTimer(pp.timers, 0)
+	}
+	return ok
+}
+
+// modtimer modifies an existing timer.
+// This is called by the netpoll code.
+func modtimer(t *timer, when, period int64, f func(interface{}, uintptr), arg interface{}, seq uintptr) {
+	if when < 0 {
+		when = maxWhen
+	}
+
+	status := uint32(timerNoStatus)
+	wasRemoved := false
+loop:
+	for {
+		switch status = atomic.Load(&t.status); status {
+		case timerWaiting, timerModifiedEarlier, timerModifiedLater:
+			if atomic.Cas(&t.status, status, timerModifying) {
+				break loop
+			}
+		case timerNoStatus, timerRemoved:
+			// Timer was already run and t is no longer in a heap.
+			// Act like addtimer.
+			if atomic.Cas(&t.status, status, timerWaiting) {
+				wasRemoved = true
+				break loop
+			}
+		case timerRunning, timerRemoving, timerMoving:
+			// The timer is being run or moved, by a different P.
+			// Wait for it to complete.
+			osyield()
+		case timerDeleted:
+			// Simultaneous calls to modtimer and deltimer.
+			badTimer()
+		case timerModifying:
+			// Multiple simultaneous calls to modtimer.
+			badTimer()
+		default:
+			badTimer()
+		}
+	}
+
+	t.period = period
+	t.f = f
+	t.arg = arg
+	t.seq = seq
+
+	if wasRemoved {
+		t.when = when
+		addInitializedTimer(t)
+	} else {
+		// The timer is in some other P's heap, so we can't change
+		// the when field. If we did, the other P's heap would
+		// be out of order. So we put the new when value in the
+		// nextwhen field, and let the other P set the when field
+		// when it is prepared to resort the heap.
+		t.nextwhen = when
+
+		newStatus := uint32(timerModifiedLater)
+		if when < t.when {
+			newStatus = timerModifiedEarlier
+		}
+
+		// Update the adjustTimers field.  Subtract one if we
+		// are removing a timerModifiedEarlier, add one if we
+		// are adding a timerModifiedEarlier.
+		tpp := t.pp.ptr()
+		adjust := int32(0)
+		if status == timerModifiedEarlier {
+			adjust--
+		}
+		if newStatus == timerModifiedEarlier {
+			adjust++
+		}
+		if adjust != 0 {
+			atomic.Xadd(&tpp.adjustTimers, adjust)
+		}
+
+		// Set the new status of the timer.
+		if !atomic.Cas(&t.status, timerModifying, newStatus) {
+			badTimer()
+		}
+
+		// If the new status is earlier, wake up the poller.
+		if newStatus == timerModifiedEarlier {
+			wakeNetPoller(when)
+		}
+	}
+}
+
+// resettimer resets an existing inactive timer to turn it into an active timer,
+// with a new time for when the timer should fire.
+// This should be called instead of addtimer if the timer value has been,
+// or may have been, used previously.
+func resettimer(t *timer, when int64) {
+	if when < 0 {
+		when = maxWhen
+	}
+
+	for {
+		switch s := atomic.Load(&t.status); s {
+		case timerNoStatus, timerRemoved:
+			if atomic.Cas(&t.status, s, timerWaiting) {
+				t.when = when
+				addInitializedTimer(t)
+				return
+			}
+		case timerDeleted:
+			if atomic.Cas(&t.status, s, timerModifying) {
+				t.nextwhen = when
+				newStatus := uint32(timerModifiedLater)
+				if when < t.when {
+					newStatus = timerModifiedEarlier
+					atomic.Xadd(&t.pp.ptr().adjustTimers, 1)
+				}
+				if !atomic.Cas(&t.status, timerModifying, newStatus) {
+					badTimer()
+				}
+				if newStatus == timerModifiedEarlier {
+					wakeNetPoller(when)
+				}
+				return
+			}
+		case timerRemoving:
+			// Wait for the removal to complete.
+			osyield()
+		case timerRunning:
+			// Even though the timer should not be active,
+			// we can see timerRunning if the timer function
+			// permits some other goroutine to call resettimer.
+			// Wait until the run is complete.
+			osyield()
+		case timerWaiting, timerModifying, timerModifiedEarlier, timerModifiedLater, timerMoving:
+			// Called resettimer on active timer.
+			badTimer()
+		default:
+			badTimer()
+		}
+	}
+}
+
+// cleantimers cleans up the head of the timer queue. This speeds up
+// programs that create and delete timers; leaving them in the heap
+// slows down addtimer. Reports whether no timer problems were found.
+// The caller must have locked the timers for pp.
+func cleantimers(pp *p) bool {
+	for {
+		if len(pp.timers) == 0 {
+			return true
+		}
+		t := pp.timers[0]
+		if t.pp.ptr() != pp {
+			throw("cleantimers: bad p")
+		}
+		switch s := atomic.Load(&t.status); s {
+		case timerDeleted:
+			if !atomic.Cas(&t.status, s, timerRemoving) {
+				continue
+			}
+			if !dodeltimer0(pp) {
+				return false
+			}
+			if !atomic.Cas(&t.status, timerRemoving, timerRemoved) {
+				return false
+			}
+		case timerModifiedEarlier, timerModifiedLater:
+			if !atomic.Cas(&t.status, s, timerMoving) {
+				continue
+			}
+			// Now we can change the when field.
+			t.when = t.nextwhen
+			// Move t to the right position.
+			if !dodeltimer0(pp) {
+				return false
+			}
+			if !doaddtimer(pp, t) {
+				return false
+			}
+			if s == timerModifiedEarlier {
+				atomic.Xadd(&pp.adjustTimers, -1)
+			}
+			if !atomic.Cas(&t.status, timerMoving, timerWaiting) {
+				return false
+			}
+		default:
+			// Head of timers does not need adjustment.
+			return true
+		}
+	}
+}
+
+// moveTimers moves a slice of timers to pp. The slice has been taken
+// from a different P.
+// This is currently called when the world is stopped, but the caller
+// is expected to have locked the timers for pp.
+func moveTimers(pp *p, timers []*timer) {
+	for _, t := range timers {
+	loop:
 		for {
-			if len(tb.t) == 0 {
-				delta = -1
-				break
-			}
-			t := tb.t[0]
-			delta = t.when - now
-			if delta > 0 {
-				break
-			}
-			ok := true
-			if t.period > 0 {
-				// leave in heap but adjust next time to fire
-				t.when += t.period * (1 + -delta/t.period)
-				if !siftdownTimer(tb.t, 0) {
-					ok = false
+			switch s := atomic.Load(&t.status); s {
+			case timerWaiting:
+				t.pp = 0
+				if !doaddtimer(pp, t) {
+					badTimer()
 				}
-			} else {
-				// remove from heap
-				last := len(tb.t) - 1
-				if last > 0 {
-					tb.t[0] = tb.t[last]
-					tb.t[0].i = 0
+				break loop
+			case timerModifiedEarlier, timerModifiedLater:
+				if !atomic.Cas(&t.status, s, timerMoving) {
+					continue
 				}
-				tb.t[last] = nil
-				tb.t = tb.t[:last]
-				if last > 0 {
-					if !siftdownTimer(tb.t, 0) {
-						ok = false
-					}
+				t.when = t.nextwhen
+				t.pp = 0
+				if !doaddtimer(pp, t) {
+					badTimer()
 				}
-				t.i = -1 // mark as removed
-			}
-			f := t.f
-			arg := t.arg
-			seq := t.seq
-			unlock(&tb.lock)
-			if !ok {
+				if !atomic.Cas(&t.status, timerMoving, timerWaiting) {
+					badTimer()
+				}
+				break loop
+			case timerDeleted:
+				if !atomic.Cas(&t.status, s, timerRemoved) {
+					continue
+				}
+				t.pp = 0
+				// We no longer need this timer in the heap.
+				break loop
+			case timerModifying:
+				// Loop until the modification is complete.
+				osyield()
+			case timerNoStatus, timerRemoved:
+				// We should not see these status values in a timers heap.
+				badTimer()
+			case timerRunning, timerRemoving, timerMoving:
+				// Some other P thinks it owns this timer,
+				// which should not happen.
+				badTimer()
+			default:
 				badTimer()
 			}
-			if raceenabled {
-				raceacquire(unsafe.Pointer(t))
-			}
-			f(arg, seq)
-			lock(&tb.lock)
 		}
-		if delta < 0 || faketime > 0 {
-			// No timers left - put goroutine to sleep.
-			tb.rescheduling = true
-			goparkunlock(&tb.lock, waitReasonTimerGoroutineIdle, traceEvGoBlock, 1)
-			continue
-		}
-		// At least one timer pending. Sleep until then.
-		tb.sleeping = true
-		tb.sleepUntil = now + delta
-		noteclear(&tb.waitnote)
-		unlock(&tb.lock)
-		notetsleepg(&tb.waitnote, delta)
 	}
 }
 
-func timejump() *g {
+// adjusttimers looks through the timers in the current P's heap for
+// any timers that have been modified to run earlier, and puts them in
+// the correct place in the heap. While looking for those timers,
+// it also moves timers that have been modified to run later,
+// and removes deleted timers. The caller must have locked the timers for pp.
+func adjusttimers(pp *p) {
+	if len(pp.timers) == 0 {
+		return
+	}
+	if atomic.Load(&pp.adjustTimers) == 0 {
+		return
+	}
+	var moved []*timer
+	for i := 0; i < len(pp.timers); i++ {
+		t := pp.timers[i]
+		if t.pp.ptr() != pp {
+			throw("adjusttimers: bad p")
+		}
+		switch s := atomic.Load(&t.status); s {
+		case timerDeleted:
+			if atomic.Cas(&t.status, s, timerRemoving) {
+				if !dodeltimer(pp, i) {
+					badTimer()
+				}
+				if !atomic.Cas(&t.status, timerRemoving, timerRemoved) {
+					badTimer()
+				}
+				// Look at this heap position again.
+				i--
+			}
+		case timerModifiedEarlier, timerModifiedLater:
+			if atomic.Cas(&t.status, s, timerMoving) {
+				// Now we can change the when field.
+				t.when = t.nextwhen
+				// Take t off the heap, and hold onto it.
+				// We don't add it back yet because the
+				// heap manipulation could cause our
+				// loop to skip some other timer.
+				if !dodeltimer(pp, i) {
+					badTimer()
+				}
+				moved = append(moved, t)
+				if s == timerModifiedEarlier {
+					if n := atomic.Xadd(&pp.adjustTimers, -1); int32(n) <= 0 {
+						addAdjustedTimers(pp, moved)
+						return
+					}
+				}
+			}
+		case timerNoStatus, timerRunning, timerRemoving, timerRemoved, timerMoving:
+			badTimer()
+		case timerWaiting:
+			// OK, nothing to do.
+		case timerModifying:
+			// Check again after modification is complete.
+			osyield()
+			i--
+		default:
+			badTimer()
+		}
+	}
+
+	if len(moved) > 0 {
+		addAdjustedTimers(pp, moved)
+	}
+}
+
+// addAdjustedTimers adds any timers we adjusted in adjusttimers
+// back to the timer heap.
+func addAdjustedTimers(pp *p, moved []*timer) {
+	for _, t := range moved {
+		if !doaddtimer(pp, t) {
+			badTimer()
+		}
+		if !atomic.Cas(&t.status, timerMoving, timerWaiting) {
+			badTimer()
+		}
+	}
+}
+
+// nobarrierWakeTime looks at P's timers and returns the time when we
+// should wake up the netpoller. It returns 0 if there are no timers.
+// This function is invoked when dropping a P, and must run without
+// any write barriers. Therefore, if there are any timers that needs
+// to be moved earlier, it conservatively returns the current time.
+// The netpoller M will wake up and adjust timers before sleeping again.
+//go:nowritebarrierrec
+func nobarrierWakeTime(pp *p) int64 {
+	lock(&pp.timersLock)
+	ret := int64(0)
+	if len(pp.timers) > 0 {
+		if atomic.Load(&pp.adjustTimers) > 0 {
+			ret = nanotime()
+		} else {
+			ret = pp.timers[0].when
+		}
+	}
+	unlock(&pp.timersLock)
+	return ret
+}
+
+// runtimer examines the first timer in timers. If it is ready based on now,
+// it runs the timer and removes or updates it.
+// Returns 0 if it ran a timer, -1 if there are no more timers, or the time
+// when the first timer should run.
+// The caller must have locked the timers for pp.
+// If a timer is run, this will temporarily unlock the timers.
+//go:systemstack
+func runtimer(pp *p, now int64) int64 {
+	for {
+		t := pp.timers[0]
+		if t.pp.ptr() != pp {
+			throw("runtimer: bad p")
+		}
+		switch s := atomic.Load(&t.status); s {
+		case timerWaiting:
+			if t.when > now {
+				// Not ready to run.
+				return t.when
+			}
+
+			if !atomic.Cas(&t.status, s, timerRunning) {
+				continue
+			}
+			// Note that runOneTimer may temporarily unlock
+			// pp.timersLock.
+			runOneTimer(pp, t, now)
+			return 0
+
+		case timerDeleted:
+			if !atomic.Cas(&t.status, s, timerRemoving) {
+				continue
+			}
+			if !dodeltimer0(pp) {
+				badTimer()
+			}
+			if !atomic.Cas(&t.status, timerRemoving, timerRemoved) {
+				badTimer()
+			}
+			if len(pp.timers) == 0 {
+				return -1
+			}
+
+		case timerModifiedEarlier, timerModifiedLater:
+			if !atomic.Cas(&t.status, s, timerMoving) {
+				continue
+			}
+			t.when = t.nextwhen
+			if !dodeltimer0(pp) {
+				badTimer()
+			}
+			if !doaddtimer(pp, t) {
+				badTimer()
+			}
+			if s == timerModifiedEarlier {
+				atomic.Xadd(&pp.adjustTimers, -1)
+			}
+			if !atomic.Cas(&t.status, timerMoving, timerWaiting) {
+				badTimer()
+			}
+
+		case timerModifying:
+			// Wait for modification to complete.
+			osyield()
+
+		case timerNoStatus, timerRemoved:
+			// Should not see a new or inactive timer on the heap.
+			badTimer()
+		case timerRunning, timerRemoving, timerMoving:
+			// These should only be set when timers are locked,
+			// and we didn't do it.
+			badTimer()
+		default:
+			badTimer()
+		}
+	}
+}
+
+// runOneTimer runs a single timer.
+// The caller must have locked the timers for pp.
+// This will temporarily unlock the timers while running the timer function.
+//go:systemstack
+func runOneTimer(pp *p, t *timer, now int64) {
+	f := t.f
+	arg := t.arg
+	seq := t.seq
+
+	if t.period > 0 {
+		// Leave in heap but adjust next time to fire.
+		delta := t.when - now
+		t.when += t.period * (1 + -delta/t.period)
+		if !siftdownTimer(pp.timers, 0) {
+			badTimer()
+		}
+		if !atomic.Cas(&t.status, timerRunning, timerWaiting) {
+			badTimer()
+		}
+	} else {
+		// Remove from heap.
+		if !dodeltimer0(pp) {
+			badTimer()
+		}
+		if !atomic.Cas(&t.status, timerRunning, timerNoStatus) {
+			badTimer()
+		}
+	}
+
+	unlock(&pp.timersLock)
+
+	f(arg, seq)
+
+	lock(&pp.timersLock)
+}
+
+func timejump() *p {
 	if faketime == 0 {
 		return nil
 	}
 
-	for i := range timers {
-		lock(&timers[i].lock)
-	}
-	gp := timejumpLocked()
-	for i := range timers {
-		unlock(&timers[i].lock)
-	}
-
-	return gp
-}
-
-func timejumpLocked() *g {
+	// Nothing is running, so we can look at all the P's.
 	// Determine a timer bucket with minimum when.
-	var minT *timer
-	for i := range timers {
-		tb := &timers[i]
-		if !tb.created || len(tb.t) == 0 {
+	var (
+		minT    *timer
+		minWhen int64
+		minP    *p
+	)
+	for _, pp := range allp {
+		if pp.status != _Pidle && pp.status != _Pdead {
+			throw("non-idle P in timejump")
+		}
+		if len(pp.timers) == 0 {
 			continue
 		}
-		t := tb.t[0]
-		if minT == nil || t.when < minT.when {
-			minT = t
+		c := pp.adjustTimers
+		for _, t := range pp.timers {
+			switch s := atomic.Load(&t.status); s {
+			case timerWaiting:
+				if minT == nil || t.when < minWhen {
+					minT = t
+					minWhen = t.when
+					minP = pp
+				}
+			case timerModifiedEarlier, timerModifiedLater:
+				if minT == nil || t.nextwhen < minWhen {
+					minT = t
+					minWhen = t.nextwhen
+					minP = pp
+				}
+				if s == timerModifiedEarlier {
+					c--
+				}
+			case timerRunning, timerModifying, timerMoving:
+				badTimer()
+			}
+			// The timers are sorted, so we only have to check
+			// the first timer for each P, unless there are
+			// some timerModifiedEarlier timers. The number
+			// of timerModifiedEarlier timers is in the adjustTimers
+			// field, used to initialize c, above.
+			if c == 0 {
+				break
+			}
 		}
 	}
-	if minT == nil || minT.when <= faketime {
+
+	if minT == nil || minWhen <= faketime {
 		return nil
 	}
 
-	faketime = minT.when
-	tb := minT.tb
-	if !tb.rescheduling {
-		return nil
-	}
-	tb.rescheduling = false
-	return tb.gp
+	faketime = minWhen
+	return minP
 }
 
+// timeSleepUntil returns the time when the next timer should fire.
+// This is only called by sysmon.
 func timeSleepUntil() int64 {
-	next := int64(1<<63 - 1)
+	next := int64(maxWhen)
 
-	// Determine minimum sleepUntil across all the timer buckets.
-	//
-	// The function can not return a precise answer,
-	// as another timer may pop in as soon as timers have been unlocked.
-	// So lock the timers one by one instead of all at once.
-	for i := range timers {
-		tb := &timers[i]
-
-		lock(&tb.lock)
-		if tb.sleeping && tb.sleepUntil < next {
-			next = tb.sleepUntil
+	// Prevent allp slice changes. This is like retake.
+	lock(&allpLock)
+	for _, pp := range allp {
+		if pp == nil {
+			// This can happen if procresize has grown
+			// allp but not yet created new Ps.
+			continue
 		}
-		unlock(&tb.lock)
+
+		lock(&pp.timersLock)
+		c := atomic.Load(&pp.adjustTimers)
+		for _, t := range pp.timers {
+			switch s := atomic.Load(&t.status); s {
+			case timerWaiting:
+				if t.when < next {
+					next = t.when
+				}
+			case timerModifiedEarlier, timerModifiedLater:
+				if t.nextwhen < next {
+					next = t.nextwhen
+				}
+				if s == timerModifiedEarlier {
+					c--
+				}
+			}
+			// The timers are sorted, so we only have to check
+			// the first timer for each P, unless there are
+			// some timerModifiedEarlier timers. The number
+			// of timerModifiedEarlier timers is in the adjustTimers
+			// field, used to initialize c, above.
+			//
+			// We don't worry about cases like timerModifying.
+			// New timers can show up at any time,
+			// so this function is necessarily imprecise.
+			// Do a signed check here since we aren't
+			// synchronizing the read of pp.adjustTimers
+			// with the check of a timer status.
+			if int32(c) <= 0 {
+				break
+			}
+		}
+		unlock(&pp.timersLock)
 	}
+	unlock(&allpLock)
 
 	return next
 }
@@ -385,9 +953,6 @@
 // it will cause the program to crash with a mysterious
 // "panic holding locks" message. Instead, we panic while not
 // holding a lock.
-// The races can occur despite the bucket locks because assignBucket
-// itself is called without locks, so racy calls can cause a timer to
-// change buckets while executing these functions.
 
 func siftupTimer(t []*timer, i int) bool {
 	if i >= len(t) {
@@ -401,12 +966,10 @@
 			break
 		}
 		t[i] = t[p]
-		t[i].i = i
 		i = p
 	}
 	if tmp != t[i] {
 		t[i] = tmp
-		t[i].i = i
 	}
 	return true
 }
@@ -444,12 +1007,10 @@
 			break
 		}
 		t[i] = t[c]
-		t[i].i = i
 		i = c
 	}
 	if tmp != t[i] {
 		t[i] = tmp
-		t[i].i = i
 	}
 	return true
 }
diff --git a/libgo/go/runtime/time_fake.go b/libgo/go/runtime/time_fake.go
new file mode 100644
index 0000000..c64d299
--- /dev/null
+++ b/libgo/go/runtime/time_fake.go
@@ -0,0 +1,100 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build faketime
+// +build !windows
+
+// Faketime isn't currently supported on Windows. This would require:
+//
+// 1. Shadowing time_now, which is implemented in assembly on Windows.
+//    Since that's exported directly to the time package from runtime
+//    assembly, this would involve moving it from sys_windows_*.s into
+//    its own assembly files build-tagged with !faketime and using the
+//    implementation of time_now from timestub.go in faketime mode.
+//
+// 2. Modifying syscall.Write to call syscall.faketimeWrite,
+//    translating the Stdout and Stderr handles into FDs 1 and 2.
+//    (See CL 192739 PS 3.)
+
+package runtime
+
+import "unsafe"
+
+// faketime is the simulated time in nanoseconds since 1970 for the
+// playground.
+var faketime int64 = 1257894000000000000
+
+var faketimeState struct {
+	lock mutex
+
+	// lastfaketime is the last faketime value written to fd 1 or 2.
+	lastfaketime int64
+
+	// lastfd is the fd to which lastfaketime was written.
+	//
+	// Subsequent writes to the same fd may use the same
+	// timestamp, but the timestamp must increase if the fd
+	// changes.
+	lastfd uintptr
+}
+
+//go:nosplit
+func nanotime() int64 {
+	return faketime
+}
+
+func walltime() (sec int64, nsec int32) {
+	return faketime / 1000000000, int32(faketime % 1000000000)
+}
+
+func write(fd uintptr, p unsafe.Pointer, n int32) int32 {
+	if !(fd == 1 || fd == 2) {
+		// Do an ordinary write.
+		return write1(fd, p, n)
+	}
+
+	// Write with the playback header.
+
+	// First, lock to avoid interleaving writes.
+	lock(&faketimeState.lock)
+
+	// If the current fd doesn't match the fd of the previous write,
+	// ensure that the timestamp is strictly greater. That way, we can
+	// recover the original order even if we read the fds separately.
+	t := faketimeState.lastfaketime
+	if fd != faketimeState.lastfd {
+		t++
+		faketimeState.lastfd = fd
+	}
+	if faketime > t {
+		t = faketime
+	}
+	faketimeState.lastfaketime = t
+
+	// Playback header: 0 0 P B <8-byte time> <4-byte data length> (big endian)
+	var buf [4 + 8 + 4]byte
+	buf[2] = 'P'
+	buf[3] = 'B'
+	tu := uint64(t)
+	buf[4] = byte(tu >> (7 * 8))
+	buf[5] = byte(tu >> (6 * 8))
+	buf[6] = byte(tu >> (5 * 8))
+	buf[7] = byte(tu >> (4 * 8))
+	buf[8] = byte(tu >> (3 * 8))
+	buf[9] = byte(tu >> (2 * 8))
+	buf[10] = byte(tu >> (1 * 8))
+	buf[11] = byte(tu >> (0 * 8))
+	nu := uint32(n)
+	buf[12] = byte(nu >> (3 * 8))
+	buf[13] = byte(nu >> (2 * 8))
+	buf[14] = byte(nu >> (1 * 8))
+	buf[15] = byte(nu >> (0 * 8))
+	write1(fd, unsafe.Pointer(&buf[0]), int32(len(buf)))
+
+	// Write actual data.
+	res := write1(fd, p, n)
+
+	unlock(&faketimeState.lock)
+	return res
+}
diff --git a/libgo/go/runtime/time_nofake.go b/libgo/go/runtime/time_nofake.go
new file mode 100644
index 0000000..1912a94
--- /dev/null
+++ b/libgo/go/runtime/time_nofake.go
@@ -0,0 +1,31 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !faketime
+
+package runtime
+
+import "unsafe"
+
+// faketime is the simulated time in nanoseconds since 1970 for the
+// playground.
+//
+// Zero means not to use faketime.
+var faketime int64
+
+//go:nosplit
+func nanotime() int64 {
+	return nanotime1()
+}
+
+func walltime() (sec int64, nsec int32) {
+	return walltime1()
+}
+
+// write must be nosplit on Windows (see write1)
+//
+//go:nosplit
+func write(fd uintptr, p unsafe.Pointer, n int32) int32 {
+	return write1(fd, p, n)
+}
diff --git a/libgo/go/runtime/time_test.go b/libgo/go/runtime/time_test.go
new file mode 100644
index 0000000..9b1922d
--- /dev/null
+++ b/libgo/go/runtime/time_test.go
@@ -0,0 +1,96 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime_test
+
+import (
+	"bytes"
+	"encoding/binary"
+	"errors"
+	"internal/testenv"
+	"os/exec"
+	"reflect"
+	"runtime"
+	"testing"
+)
+
+func TestFakeTime(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("faketime not supported on windows")
+	}
+	if runtime.Compiler == "gccgo" {
+		t.Skip("faketime not supported for gccgo")
+	}
+
+	t.Parallel()
+
+	exe, err := buildTestProg(t, "testfaketime", "-tags=faketime")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var stdout, stderr bytes.Buffer
+	cmd := exec.Command(exe)
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+
+	err = testenv.CleanCmdEnv(cmd).Run()
+	if err != nil {
+		t.Fatalf("exit status: %v\n%s", err, stderr.String())
+	}
+
+	t.Logf("raw stdout: %q", stdout.String())
+	t.Logf("raw stderr: %q", stdout.String())
+
+	f1, err1 := parseFakeTime(stdout.Bytes())
+	if err1 != nil {
+		t.Fatal(err1)
+	}
+	f2, err2 := parseFakeTime(stderr.Bytes())
+	if err2 != nil {
+		t.Fatal(err2)
+	}
+
+	const time0 = 1257894000000000000
+	got := [][]fakeTimeFrame{f1, f2}
+	var want = [][]fakeTimeFrame{{
+		{time0 + 1, "line 2\n"},
+		{time0 + 1, "line 3\n"},
+		{time0 + 1e9, "line 5\n"},
+		{time0 + 1e9, "2009-11-10T23:00:01Z"},
+	}, {
+		{time0, "line 1\n"},
+		{time0 + 2, "line 4\n"},
+	}}
+	if !reflect.DeepEqual(want, got) {
+		t.Fatalf("want %v, got %v", want, got)
+	}
+}
+
+type fakeTimeFrame struct {
+	time uint64
+	data string
+}
+
+func parseFakeTime(x []byte) ([]fakeTimeFrame, error) {
+	var frames []fakeTimeFrame
+	for len(x) != 0 {
+		if len(x) < 4+8+4 {
+			return nil, errors.New("truncated header")
+		}
+		const magic = "\x00\x00PB"
+		if string(x[:len(magic)]) != magic {
+			return nil, errors.New("bad magic")
+		}
+		x = x[len(magic):]
+		time := binary.BigEndian.Uint64(x)
+		x = x[8:]
+		dlen := binary.BigEndian.Uint32(x)
+		x = x[4:]
+		data := string(x[:dlen])
+		x = x[dlen:]
+		frames = append(frames, fakeTimeFrame{time, data})
+	}
+	return frames, nil
+}
diff --git a/libgo/go/runtime/timestub2.go b/libgo/go/runtime/timestub2.go
index 7a28603..38446fb 100644
--- a/libgo/go/runtime/timestub2.go
+++ b/libgo/go/runtime/timestub2.go
@@ -5,6 +5,7 @@
 // +build !darwin
 // +build !windows
 // +build !freebsd
+
 package runtime
 
-func walltime() (sec int64, nsec int32)
+func walltime1() (sec int64, nsec int32)
diff --git a/libgo/go/runtime/trace.go b/libgo/go/runtime/trace.go
index 6db5b62..81ff0ca 100644
--- a/libgo/go/runtime/trace.go
+++ b/libgo/go/runtime/trace.go
@@ -54,7 +54,7 @@
 	traceEvGoInSyscall       = 32 // denotes that goroutine is in syscall when tracing starts [timestamp, goroutine id]
 	traceEvHeapAlloc         = 33 // memstats.heap_live change [timestamp, heap_alloc]
 	traceEvNextGC            = 34 // memstats.next_gc change [timestamp, next_gc]
-	traceEvTimerGoroutine    = 35 // denotes timer goroutine [timer goroutine id]
+	traceEvTimerGoroutine    = 35 // not currently used; previously denoted timer goroutine [timer goroutine id]
 	traceEvFutileWakeup      = 36 // denotes that the previous wakeup of this goroutine was futile [timestamp]
 	traceEvString            = 37 // string dictionary entry [ID, length, string]
 	traceEvGoStartLocal      = 38 // goroutine starts running on the same P as the last event [timestamp, goroutine id]
@@ -84,7 +84,7 @@
 	// and ppc64le.
 	// Tracing won't work reliably for architectures where cputicks is emulated
 	// by nanotime, so the value doesn't matter for those architectures.
-	traceTickDiv = 16 + 48*(sys.Goarch386|sys.GoarchAmd64|sys.GoarchAmd64p32)
+	traceTickDiv = 16 + 48*(sys.Goarch386|sys.GoarchAmd64)
 	// Maximum number of PCs in a single stack trace.
 	// Since events contain only stack id rather than whole stack trace,
 	// we can allow quite large values here.
@@ -181,9 +181,12 @@
 // Most clients should use the runtime/trace package or the testing package's
 // -test.trace flag instead of calling StartTrace directly.
 func StartTrace() error {
-	// Stop the world, so that we can take a consistent snapshot
+	// Stop the world so that we can take a consistent snapshot
 	// of all goroutines at the beginning of the trace.
-	stopTheWorld("start tracing")
+	// Do not stop the world during GC so we ensure we always see
+	// a consistent view of GC-related events (e.g. a start is always
+	// paired with an end).
+	stopTheWorldGC("start tracing")
 
 	// We are in stop-the-world, but syscalls can finish and write to trace concurrently.
 	// Exitsyscall could check trace.enabled long before and then suddenly wake up
@@ -194,7 +197,7 @@
 
 	if trace.enabled || trace.shutdown {
 		unlock(&trace.bufLock)
-		startTheWorld()
+		startTheWorldGC()
 		return errorString("tracing is already enabled")
 	}
 
@@ -265,7 +268,7 @@
 
 	unlock(&trace.bufLock)
 
-	startTheWorld()
+	startTheWorldGC()
 	return nil
 }
 
@@ -274,14 +277,14 @@
 func StopTrace() {
 	// Stop the world so that we can collect the trace buffers from all p's below,
 	// and also to avoid races with traceEvent.
-	stopTheWorld("stop tracing")
+	stopTheWorldGC("stop tracing")
 
 	// See the comment in StartTrace.
 	lock(&trace.bufLock)
 
 	if !trace.enabled {
 		unlock(&trace.bufLock)
-		startTheWorld()
+		startTheWorldGC()
 		return
 	}
 
@@ -318,7 +321,7 @@
 	trace.shutdown = true
 	unlock(&trace.bufLock)
 
-	startTheWorld()
+	startTheWorldGC()
 
 	// The world is started but we've set trace.shutdown, so new tracing can't start.
 	// Wait for the trace reader to flush pending buffers and stop.
@@ -414,13 +417,6 @@
 		var data []byte
 		data = append(data, traceEvFrequency|0<<traceArgCountShift)
 		data = traceAppend(data, uint64(freq))
-		for i := range timers {
-			tb := &timers[i]
-			if tb.gp != nil {
-				data = append(data, traceEvTimerGoroutine|0<<traceArgCountShift)
-				data = traceAppend(data, uint64(tb.gp.goid))
-			}
-		}
 		// This will emit a bunch of full buffers, we will pick them up
 		// on the next iteration.
 		trace.stackTab.dump()
@@ -922,7 +918,7 @@
 
 // alloc allocates n-byte block.
 func (a *traceAlloc) alloc(n uintptr) unsafe.Pointer {
-	n = round(n, sys.PtrSize)
+	n = alignUp(n, sys.PtrSize)
 	if a.head == 0 || a.off+n > uintptr(len(a.head.ptr().data)) {
 		if n > uintptr(len(a.head.ptr().data)) {
 			throw("trace: alloc too large")
diff --git a/libgo/go/runtime/trace/trace_stack_test.go b/libgo/go/runtime/trace/trace_stack_test.go
index 62c06e6..e3608c6 100644
--- a/libgo/go/runtime/trace/trace_stack_test.go
+++ b/libgo/go/runtime/trace/trace_stack_test.go
@@ -233,6 +233,7 @@
 		}},
 		{trace.EvGomaxprocs, []frame{
 			{"runtime.startTheWorld", 0}, // this is when the current gomaxprocs is logged.
+			{"runtime.startTheWorldGC", 0},
 			{"runtime.GOMAXPROCS", 0},
 			{"runtime/trace_test.TestTraceSymbolize", 0},
 			{"testing.tRunner", 0},
diff --git a/libgo/go/runtime/traceback_gccgo.go b/libgo/go/runtime/traceback_gccgo.go
index 4134d28..1ba91af 100644
--- a/libgo/go/runtime/traceback_gccgo.go
+++ b/libgo/go/runtime/traceback_gccgo.go
@@ -20,7 +20,7 @@
 	if entry != 0 && tracepc > entry {
 		tracepc -= sys.PCQuantum
 	}
-	function, file, line, _ := funcfileline(tracepc, -1)
+	function, file, line, _ := funcfileline(tracepc, -1, false)
 	if function != "" && showframe(function, gp, false) && gp.goid != 1 {
 		printcreatedby1(function, file, line, entry, pc)
 	}
@@ -93,7 +93,7 @@
 func printAncestorTraceback(ancestor ancestorInfo) {
 	print("[originating from goroutine ", ancestor.goid, "]:\n")
 	for fidx, pc := range ancestor.pcs {
-		function, file, line, _ := funcfileline(pc, -1)
+		function, file, line, _ := funcfileline(pc, -1, false)
 		if showfuncinfo(function, fidx == 0) {
 			printAncestorTracebackFuncInfo(function, file, line, pc)
 		}
@@ -102,7 +102,7 @@
 		print("...additional frames elided...\n")
 	}
 	// Show what created goroutine, except main goroutine (goid 1).
-	function, file, line, _ := funcfileline(ancestor.gopc, -1)
+	function, file, line, _ := funcfileline(ancestor.gopc, -1, false)
 	if function != "" && showfuncinfo(function, false) && ancestor.goid != 1 {
 		printcreatedby1(function, file, line, funcentry(ancestor.gopc), ancestor.gopc)
 	}
diff --git a/libgo/go/runtime/treap_test.go b/libgo/go/runtime/treap_test.go
deleted file mode 100644
index 110f51c..0000000
--- a/libgo/go/runtime/treap_test.go
+++ /dev/null
@@ -1,270 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package runtime_test
-
-import (
-	"fmt"
-	"runtime"
-	"testing"
-)
-
-var spanDesc = map[uintptr]struct {
-	pages uintptr
-	scav  bool
-}{
-	0xc0000000: {2, false},
-	0xc0006000: {1, false},
-	0xc0010000: {8, false},
-	0xc0022000: {7, false},
-	0xc0034000: {4, true},
-	0xc0040000: {5, false},
-	0xc0050000: {5, true},
-	0xc0060000: {5000, false},
-}
-
-// Wrap the Treap one more time because go:notinheap doesn't
-// actually follow a structure across package boundaries.
-//
-//go:notinheap
-type treap struct {
-	runtime.Treap
-}
-
-func maskMatchName(mask, match runtime.TreapIterType) string {
-	return fmt.Sprintf("%0*b-%0*b", runtime.TreapIterBits, uint8(mask), runtime.TreapIterBits, uint8(match))
-}
-
-func TestTreapFilter(t *testing.T) {
-	var iterTypes = [...]struct {
-		mask, match runtime.TreapIterType
-		filter      runtime.TreapIterFilter // expected filter
-	}{
-		{0, 0, 0xf},
-		{runtime.TreapIterScav, 0, 0x5},
-		{runtime.TreapIterScav, runtime.TreapIterScav, 0xa},
-		{runtime.TreapIterScav | runtime.TreapIterHuge, runtime.TreapIterHuge, 0x4},
-		{runtime.TreapIterScav | runtime.TreapIterHuge, 0, 0x1},
-		{0, runtime.TreapIterScav, 0x0},
-	}
-	for _, it := range iterTypes {
-		t.Run(maskMatchName(it.mask, it.match), func(t *testing.T) {
-			if f := runtime.TreapFilter(it.mask, it.match); f != it.filter {
-				t.Fatalf("got %#x, want %#x", f, it.filter)
-			}
-		})
-	}
-}
-
-// This test ensures that the treap implementation in the runtime
-// maintains all stated invariants after different sequences of
-// insert, removeSpan, find, and erase. Invariants specific to the
-// treap data structure are checked implicitly: after each mutating
-// operation, treap-related invariants are checked for the entire
-// treap.
-func TestTreap(t *testing.T) {
-	// Set up a bunch of spans allocated into mheap_.
-	// Also, derive a set of typeCounts of each type of span
-	// according to runtime.TreapIterType so we can verify against
-	// them later.
-	spans := make([]runtime.Span, 0, len(spanDesc))
-	typeCounts := [1 << runtime.TreapIterBits][1 << runtime.TreapIterBits]int{}
-	for base, de := range spanDesc {
-		s := runtime.AllocSpan(base, de.pages, de.scav)
-		defer s.Free()
-		spans = append(spans, s)
-
-		for i := runtime.TreapIterType(0); i < 1<<runtime.TreapIterBits; i++ {
-			for j := runtime.TreapIterType(0); j < 1<<runtime.TreapIterBits; j++ {
-				if s.MatchesIter(i, j) {
-					typeCounts[i][j]++
-				}
-			}
-		}
-	}
-	t.Run("TypeCountsSanity", func(t *testing.T) {
-		// Just sanity check type counts for a few values.
-		check := func(mask, match runtime.TreapIterType, count int) {
-			tc := typeCounts[mask][match]
-			if tc != count {
-				name := maskMatchName(mask, match)
-				t.Fatalf("failed a sanity check for mask/match %s counts: got %d, wanted %d", name, tc, count)
-			}
-		}
-		check(0, 0, len(spanDesc))
-		check(runtime.TreapIterScav, 0, 6)
-		check(runtime.TreapIterScav, runtime.TreapIterScav, 2)
-	})
-	t.Run("Insert", func(t *testing.T) {
-		tr := treap{}
-		// Test just a very basic insert/remove for sanity.
-		tr.Insert(spans[0])
-		tr.RemoveSpan(spans[0])
-	})
-	t.Run("FindTrivial", func(t *testing.T) {
-		tr := treap{}
-		// Test just a very basic find operation for sanity.
-		tr.Insert(spans[0])
-		i := tr.Find(1)
-		if i.Span() != spans[0] {
-			t.Fatal("found unknown span in treap")
-		}
-		tr.RemoveSpan(spans[0])
-	})
-	t.Run("FindFirstFit", func(t *testing.T) {
-		// Run this 10 times, recreating the treap each time.
-		// Because of the non-deterministic structure of a treap,
-		// we'll be able to test different structures this way.
-		for i := 0; i < 10; i++ {
-			tr := runtime.Treap{}
-			for _, s := range spans {
-				tr.Insert(s)
-			}
-			i := tr.Find(5)
-			if i.Span().Base() != 0xc0010000 {
-				t.Fatalf("expected span at lowest address which could fit 5 pages, instead found span at %x", i.Span().Base())
-			}
-			for _, s := range spans {
-				tr.RemoveSpan(s)
-			}
-		}
-	})
-	t.Run("Iterate", func(t *testing.T) {
-		for mask := runtime.TreapIterType(0); mask < 1<<runtime.TreapIterBits; mask++ {
-			for match := runtime.TreapIterType(0); match < 1<<runtime.TreapIterBits; match++ {
-				iterName := maskMatchName(mask, match)
-				t.Run(iterName, func(t *testing.T) {
-					t.Run("StartToEnd", func(t *testing.T) {
-						// Ensure progressing an iterator actually goes over the whole treap
-						// from the start and that it iterates over the elements in order.
-						// Furthermore, ensure that it only iterates over the relevant parts
-						// of the treap.
-						// Finally, ensures that Start returns a valid iterator.
-						tr := treap{}
-						for _, s := range spans {
-							tr.Insert(s)
-						}
-						nspans := 0
-						lastBase := uintptr(0)
-						for i := tr.Start(mask, match); i.Valid(); i = i.Next() {
-							nspans++
-							if lastBase > i.Span().Base() {
-								t.Fatalf("not iterating in correct order: encountered base %x before %x", lastBase, i.Span().Base())
-							}
-							lastBase = i.Span().Base()
-							if !i.Span().MatchesIter(mask, match) {
-								t.Fatalf("found non-matching span while iteration over mask/match %s: base %x", iterName, i.Span().Base())
-							}
-						}
-						if nspans != typeCounts[mask][match] {
-							t.Fatal("failed to iterate forwards over full treap")
-						}
-						for _, s := range spans {
-							tr.RemoveSpan(s)
-						}
-					})
-					t.Run("EndToStart", func(t *testing.T) {
-						// See StartToEnd tests.
-						tr := treap{}
-						for _, s := range spans {
-							tr.Insert(s)
-						}
-						nspans := 0
-						lastBase := ^uintptr(0)
-						for i := tr.End(mask, match); i.Valid(); i = i.Prev() {
-							nspans++
-							if lastBase < i.Span().Base() {
-								t.Fatalf("not iterating in correct order: encountered base %x before %x", lastBase, i.Span().Base())
-							}
-							lastBase = i.Span().Base()
-							if !i.Span().MatchesIter(mask, match) {
-								t.Fatalf("found non-matching span while iteration over mask/match %s: base %x", iterName, i.Span().Base())
-							}
-						}
-						if nspans != typeCounts[mask][match] {
-							t.Fatal("failed to iterate backwards over full treap")
-						}
-						for _, s := range spans {
-							tr.RemoveSpan(s)
-						}
-					})
-				})
-			}
-		}
-		t.Run("Prev", func(t *testing.T) {
-			// Test the iterator invariant that i.prev().next() == i.
-			tr := treap{}
-			for _, s := range spans {
-				tr.Insert(s)
-			}
-			i := tr.Start(0, 0).Next().Next()
-			p := i.Prev()
-			if !p.Valid() {
-				t.Fatal("i.prev() is invalid")
-			}
-			if p.Next().Span() != i.Span() {
-				t.Fatal("i.prev().next() != i")
-			}
-			for _, s := range spans {
-				tr.RemoveSpan(s)
-			}
-		})
-		t.Run("Next", func(t *testing.T) {
-			// Test the iterator invariant that i.next().prev() == i.
-			tr := treap{}
-			for _, s := range spans {
-				tr.Insert(s)
-			}
-			i := tr.Start(0, 0).Next().Next()
-			n := i.Next()
-			if !n.Valid() {
-				t.Fatal("i.next() is invalid")
-			}
-			if n.Prev().Span() != i.Span() {
-				t.Fatal("i.next().prev() != i")
-			}
-			for _, s := range spans {
-				tr.RemoveSpan(s)
-			}
-		})
-	})
-	t.Run("EraseOne", func(t *testing.T) {
-		// Test that erasing one iterator correctly retains
-		// all relationships between elements.
-		tr := treap{}
-		for _, s := range spans {
-			tr.Insert(s)
-		}
-		i := tr.Start(0, 0).Next().Next().Next()
-		s := i.Span()
-		n := i.Next()
-		p := i.Prev()
-		tr.Erase(i)
-		if n.Prev().Span() != p.Span() {
-			t.Fatal("p, n := i.Prev(), i.Next(); n.prev() != p after i was erased")
-		}
-		if p.Next().Span() != n.Span() {
-			t.Fatal("p, n := i.Prev(), i.Next(); p.next() != n after i was erased")
-		}
-		tr.Insert(s)
-		for _, s := range spans {
-			tr.RemoveSpan(s)
-		}
-	})
-	t.Run("EraseAll", func(t *testing.T) {
-		// Test that erasing iterators actually removes nodes from the treap.
-		tr := treap{}
-		for _, s := range spans {
-			tr.Insert(s)
-		}
-		for i := tr.Start(0, 0); i.Valid(); {
-			n := i.Next()
-			tr.Erase(i)
-			i = n
-		}
-		if size := tr.Size(); size != 0 {
-			t.Fatalf("should have emptied out treap, %d spans left", size)
-		}
-	})
-}
diff --git a/libgo/go/strconv/atof.go b/libgo/go/strconv/atof.go
index d531bda..4dbe68b 100644
--- a/libgo/go/strconv/atof.go
+++ b/libgo/go/strconv/atof.go
@@ -85,7 +85,7 @@
 	for ; i < len(s); i++ {
 		switch {
 		case s[i] == '_':
-			// underscoreOK already called
+			// readFloat already checked underscores
 			continue
 		case s[i] == '.':
 			if sawdot {
@@ -141,7 +141,7 @@
 		e := 0
 		for ; i < len(s) && ('0' <= s[i] && s[i] <= '9' || s[i] == '_'); i++ {
 			if s[i] == '_' {
-				// underscoreOK already called
+				// readFloat already checked underscores
 				continue
 			}
 			if e < 10000 {
@@ -160,10 +160,11 @@
 }
 
 // readFloat reads a decimal mantissa and exponent from a float
-// string representation. It returns ok==false if the number could
-// not fit return types or is invalid.
+// string representation. It returns ok==false if the number
+// is invalid.
 func readFloat(s string) (mantissa uint64, exp int, neg, trunc, hex, ok bool) {
 	i := 0
+	underscores := false
 
 	// optional sign
 	if i >= len(s) {
@@ -196,7 +197,7 @@
 	for ; i < len(s); i++ {
 		switch c := s[i]; true {
 		case c == '_':
-			// underscoreOK already called
+			underscores = true
 			continue
 
 		case c == '.':
@@ -272,7 +273,7 @@
 		e := 0
 		for ; i < len(s) && ('0' <= s[i] && s[i] <= '9' || s[i] == '_'); i++ {
 			if s[i] == '_' {
-				// underscoreOK already called
+				underscores = true
 				continue
 			}
 			if e < 10000 {
@@ -292,6 +293,11 @@
 	if mantissa != 0 {
 		exp = dp - ndMant
 	}
+
+	if underscores && !underscoreOK(s) {
+		return
+	}
+
 	ok = true
 	return
 }
@@ -560,12 +566,16 @@
 	}
 
 	mantissa, exp, neg, trunc, hex, ok := readFloat(s)
-	if hex && ok {
+	if !ok {
+		return 0, syntaxError(fnParseFloat, s)
+	}
+
+	if hex {
 		f, err := atofHex(s, &float32info, mantissa, exp, neg, trunc)
 		return float32(f), err
 	}
 
-	if optimize && ok {
+	if optimize {
 		// Try pure floating-point arithmetic conversion.
 		if !trunc {
 			if f, ok := atof32exact(mantissa, exp, neg); ok {
@@ -603,11 +613,15 @@
 	}
 
 	mantissa, exp, neg, trunc, hex, ok := readFloat(s)
-	if hex && ok {
+	if !ok {
+		return 0, syntaxError(fnParseFloat, s)
+	}
+
+	if hex {
 		return atofHex(s, &float64info, mantissa, exp, neg, trunc)
 	}
 
-	if optimize && ok {
+	if optimize {
 		// Try pure floating-point arithmetic conversion.
 		if !trunc {
 			if f, ok := atof64exact(mantissa, exp, neg); ok {
@@ -664,9 +678,6 @@
 // ParseFloat recognizes the strings "NaN", "+Inf", and "-Inf" as their
 // respective special floating point values. It ignores case when matching.
 func ParseFloat(s string, bitSize int) (float64, error) {
-	if !underscoreOK(s) {
-		return 0, syntaxError(fnParseFloat, s)
-	}
 	if bitSize == 32 {
 		f, err := atof32(s)
 		return float64(f), err
diff --git a/libgo/go/strconv/atoi.go b/libgo/go/strconv/atoi.go
index 0233f14..a4a8a37 100644
--- a/libgo/go/strconv/atoi.go
+++ b/libgo/go/strconv/atoi.go
@@ -31,6 +31,8 @@
 	return "strconv." + e.Func + ": " + "parsing " + Quote(e.Num) + ": " + e.Err.Error()
 }
 
+func (e *NumError) Unwrap() error { return e.Err }
+
 func syntaxError(fn, str string) *NumError {
 	return &NumError{fn, str, ErrSyntax}
 }
@@ -58,7 +60,7 @@
 func ParseUint(s string, base int, bitSize int) (uint64, error) {
 	const fnParseUint = "ParseUint"
 
-	if s == "" || !underscoreOK(s) {
+	if s == "" {
 		return 0, syntaxError(fnParseUint, s)
 	}
 
@@ -113,12 +115,13 @@
 
 	maxVal := uint64(1)<<uint(bitSize) - 1
 
+	underscores := false
 	var n uint64
 	for _, c := range []byte(s) {
 		var d byte
 		switch {
 		case c == '_' && base0:
-			// underscoreOK already called
+			underscores = true
 			continue
 		case '0' <= c && c <= '9':
 			d = c - '0'
@@ -146,17 +149,20 @@
 		n = n1
 	}
 
+	if underscores && !underscoreOK(s0) {
+		return 0, syntaxError(fnParseUint, s0)
+	}
+
 	return n, nil
 }
 
 // ParseInt interprets a string s in the given base (0, 2 to 36) and
 // bit size (0 to 64) and returns the corresponding value i.
 //
-// If base == 0, the base is implied by the string's prefix:
-// base 2 for "0b", base 8 for "0" or "0o", base 16 for "0x",
-// and base 10 otherwise. Also, for base == 0 only, underscore
-// characters are permitted per the Go integer literal syntax.
-// If base is below 0, is 1, or is above 36, an error is returned.
+// If the base argument is 0, the true base is implied by the string's
+// prefix: 2 for "0b", 8 for "0" or "0o", 16 for "0x", and 10 otherwise.
+// Also, for argument base 0 only, underscore characters are permitted
+// as defined by the Go syntax for integer literals.
 //
 // The bitSize argument specifies the integer type
 // that the result must fit into. Bit sizes 0, 8, 16, 32, and 64
diff --git a/libgo/go/strconv/atoi_test.go b/libgo/go/strconv/atoi_test.go
index b167c96..178fb01 100644
--- a/libgo/go/strconv/atoi_test.go
+++ b/libgo/go/strconv/atoi_test.go
@@ -592,6 +592,13 @@
 	}
 }
 
+func TestNumErrorUnwrap(t *testing.T) {
+	err := &NumError{Err: ErrSyntax}
+	if !errors.Is(err, ErrSyntax) {
+		t.Error("errors.Is failed, wanted success")
+	}
+}
+
 func BenchmarkParseInt(b *testing.B) {
 	b.Run("Pos", func(b *testing.B) {
 		benchmarkParseInt(b, 1)
diff --git a/libgo/go/strconv/example_test.go b/libgo/go/strconv/example_test.go
index 50f6b20..3b4cedb 100644
--- a/libgo/go/strconv/example_test.go
+++ b/libgo/go/strconv/example_test.go
@@ -294,7 +294,8 @@
 }
 
 func ExampleQuote() {
-	s := strconv.Quote(`"Fran & Freddie's Diner	☺"`) // there is a tab character inside the string literal
+	// This string literal contains a tab character.
+	s := strconv.Quote(`"Fran & Freddie's Diner	☺"`)
 	fmt.Println(s)
 
 	// Output:
@@ -338,7 +339,8 @@
 }
 
 func ExampleQuoteToASCII() {
-	s := strconv.QuoteToASCII(`"Fran & Freddie's Diner	☺"`) // there is a tab character inside the string literal
+	// This string literal contains a tab character.
+	s := strconv.QuoteToASCII(`"Fran & Freddie's Diner	☺"`)
 	fmt.Println(s)
 
 	// Output:
@@ -349,7 +351,8 @@
 	s := strconv.QuoteToGraphic("☺")
 	fmt.Println(s)
 
-	s = strconv.QuoteToGraphic("This is a \u263a	\u000a") // there is a tab character inside the string literal
+	// This string literal contains a tab character.
+	s = strconv.QuoteToGraphic("This is a \u263a	\u000a")
 	fmt.Println(s)
 
 	s = strconv.QuoteToGraphic(`" This is a ☺ \n "`)
diff --git a/libgo/go/strconv/isprint.go b/libgo/go/strconv/isprint.go
index a8dfdb2..7ada2d1 100644
--- a/libgo/go/strconv/isprint.go
+++ b/libgo/go/strconv/isprint.go
@@ -6,7 +6,7 @@
 
 package strconv
 
-// (448+137+90)*2 + (418)*4 = 3022 bytes
+// (442+132+90)*2 + (450)*4 = 3128 bytes
 
 var isPrint16 = []uint16{
 	0x0020, 0x007e,
@@ -75,7 +75,7 @@
 	0x0c55, 0x0c5a,
 	0x0c60, 0x0c63,
 	0x0c66, 0x0c6f,
-	0x0c78, 0x0cb9,
+	0x0c77, 0x0cb9,
 	0x0cbc, 0x0ccd,
 	0x0cd5, 0x0cd6,
 	0x0cde, 0x0ce3,
@@ -92,11 +92,7 @@
 	0x0df2, 0x0df4,
 	0x0e01, 0x0e3a,
 	0x0e3f, 0x0e5b,
-	0x0e81, 0x0e84,
-	0x0e87, 0x0e8a,
-	0x0e8d, 0x0e8d,
-	0x0e94, 0x0ea7,
-	0x0eaa, 0x0ebd,
+	0x0e81, 0x0ebd,
 	0x0ec0, 0x0ecd,
 	0x0ed0, 0x0ed9,
 	0x0edc, 0x0edf,
@@ -151,7 +147,7 @@
 	0x1c4d, 0x1c88,
 	0x1c90, 0x1cba,
 	0x1cbd, 0x1cc7,
-	0x1cd0, 0x1cf9,
+	0x1cd0, 0x1cfa,
 	0x1d00, 0x1f15,
 	0x1f18, 0x1f1d,
 	0x1f20, 0x1f45,
@@ -177,7 +173,7 @@
 	0x2d30, 0x2d67,
 	0x2d6f, 0x2d70,
 	0x2d7f, 0x2d96,
-	0x2da0, 0x2e4e,
+	0x2da0, 0x2e4f,
 	0x2e80, 0x2ef3,
 	0x2f00, 0x2fd5,
 	0x2ff0, 0x2ffb,
@@ -191,7 +187,8 @@
 	0xa490, 0xa4c6,
 	0xa4d0, 0xa62b,
 	0xa640, 0xa6f7,
-	0xa700, 0xa7b9,
+	0xa700, 0xa7bf,
+	0xa7c2, 0xa7c6,
 	0xa7f7, 0xa82b,
 	0xa830, 0xa839,
 	0xa840, 0xa877,
@@ -208,7 +205,7 @@
 	0xab01, 0xab06,
 	0xab09, 0xab0e,
 	0xab11, 0xab16,
-	0xab20, 0xab65,
+	0xab20, 0xab67,
 	0xab70, 0xabed,
 	0xabf0, 0xabf9,
 	0xac00, 0xd7a3,
@@ -302,13 +299,10 @@
 	0x0dd5,
 	0x0dd7,
 	0x0e83,
-	0x0e89,
-	0x0e98,
-	0x0ea0,
+	0x0e85,
+	0x0e8b,
 	0x0ea4,
 	0x0ea6,
-	0x0eac,
-	0x0eba,
 	0x0ec5,
 	0x0ec7,
 	0x0f48,
@@ -341,8 +335,6 @@
 	0x1fdc,
 	0x1ff5,
 	0x208f,
-	0x2bc9,
-	0x2bff,
 	0x2c2f,
 	0x2c5f,
 	0x2d26,
@@ -435,6 +427,7 @@
 	0x010e60, 0x010e7e,
 	0x010f00, 0x010f27,
 	0x010f30, 0x010f59,
+	0x010fe0, 0x010ff6,
 	0x011000, 0x01104d,
 	0x011052, 0x01106f,
 	0x01107f, 0x0110c1,
@@ -458,7 +451,7 @@
 	0x01135d, 0x011363,
 	0x011366, 0x01136c,
 	0x011370, 0x011374,
-	0x011400, 0x01145e,
+	0x011400, 0x01145f,
 	0x011480, 0x0114c7,
 	0x0114d0, 0x0114d9,
 	0x011580, 0x0115b5,
@@ -466,7 +459,7 @@
 	0x011600, 0x011644,
 	0x011650, 0x011659,
 	0x011660, 0x01166c,
-	0x011680, 0x0116b7,
+	0x011680, 0x0116b8,
 	0x0116c0, 0x0116c9,
 	0x011700, 0x01171a,
 	0x01171d, 0x01172b,
@@ -474,9 +467,11 @@
 	0x011800, 0x01183b,
 	0x0118a0, 0x0118f2,
 	0x0118ff, 0x0118ff,
+	0x0119a0, 0x0119a7,
+	0x0119aa, 0x0119d7,
+	0x0119da, 0x0119e4,
 	0x011a00, 0x011a47,
-	0x011a50, 0x011a83,
-	0x011a86, 0x011aa2,
+	0x011a50, 0x011aa2,
 	0x011ac0, 0x011af8,
 	0x011c00, 0x011c45,
 	0x011c50, 0x011c6c,
@@ -488,7 +483,8 @@
 	0x011d60, 0x011d98,
 	0x011da0, 0x011da9,
 	0x011ee0, 0x011ef8,
-	0x012000, 0x012399,
+	0x011fc0, 0x011ff1,
+	0x011fff, 0x012399,
 	0x012400, 0x012474,
 	0x012480, 0x012543,
 	0x013000, 0x01342e,
@@ -502,13 +498,15 @@
 	0x016b50, 0x016b77,
 	0x016b7d, 0x016b8f,
 	0x016e40, 0x016e9a,
-	0x016f00, 0x016f44,
-	0x016f50, 0x016f7e,
+	0x016f00, 0x016f4a,
+	0x016f4f, 0x016f87,
 	0x016f8f, 0x016f9f,
-	0x016fe0, 0x016fe1,
-	0x017000, 0x0187f1,
+	0x016fe0, 0x016fe3,
+	0x017000, 0x0187f7,
 	0x018800, 0x018af2,
 	0x01b000, 0x01b11e,
+	0x01b150, 0x01b152,
+	0x01b164, 0x01b167,
 	0x01b170, 0x01b2fb,
 	0x01bc00, 0x01bc6a,
 	0x01bc70, 0x01bc7c,
@@ -534,12 +532,19 @@
 	0x01da9b, 0x01daaf,
 	0x01e000, 0x01e018,
 	0x01e01b, 0x01e02a,
+	0x01e100, 0x01e12c,
+	0x01e130, 0x01e13d,
+	0x01e140, 0x01e149,
+	0x01e14e, 0x01e14f,
+	0x01e2c0, 0x01e2f9,
+	0x01e2ff, 0x01e2ff,
 	0x01e800, 0x01e8c4,
 	0x01e8c7, 0x01e8d6,
-	0x01e900, 0x01e94a,
+	0x01e900, 0x01e94b,
 	0x01e950, 0x01e959,
 	0x01e95e, 0x01e95f,
 	0x01ec71, 0x01ecb4,
+	0x01ed01, 0x01ed3d,
 	0x01ee00, 0x01ee24,
 	0x01ee27, 0x01ee3b,
 	0x01ee42, 0x01ee42,
@@ -553,31 +558,34 @@
 	0x01f0a0, 0x01f0ae,
 	0x01f0b1, 0x01f0f5,
 	0x01f100, 0x01f10c,
-	0x01f110, 0x01f16b,
+	0x01f110, 0x01f16c,
 	0x01f170, 0x01f1ac,
 	0x01f1e6, 0x01f202,
 	0x01f210, 0x01f23b,
 	0x01f240, 0x01f248,
 	0x01f250, 0x01f251,
 	0x01f260, 0x01f265,
-	0x01f300, 0x01f6d4,
+	0x01f300, 0x01f6d5,
 	0x01f6e0, 0x01f6ec,
-	0x01f6f0, 0x01f6f9,
+	0x01f6f0, 0x01f6fa,
 	0x01f700, 0x01f773,
 	0x01f780, 0x01f7d8,
+	0x01f7e0, 0x01f7eb,
 	0x01f800, 0x01f80b,
 	0x01f810, 0x01f847,
 	0x01f850, 0x01f859,
 	0x01f860, 0x01f887,
 	0x01f890, 0x01f8ad,
-	0x01f900, 0x01f90b,
-	0x01f910, 0x01f970,
-	0x01f973, 0x01f976,
+	0x01f900, 0x01f976,
 	0x01f97a, 0x01f9a2,
-	0x01f9b0, 0x01f9b9,
-	0x01f9c0, 0x01f9c2,
-	0x01f9d0, 0x01f9ff,
+	0x01f9a5, 0x01f9aa,
+	0x01f9ae, 0x01f9ca,
+	0x01f9cd, 0x01fa53,
 	0x01fa60, 0x01fa6d,
+	0x01fa70, 0x01fa73,
+	0x01fa78, 0x01fa7a,
+	0x01fa80, 0x01fa82,
+	0x01fa90, 0x01fa95,
 	0x020000, 0x02a6d6,
 	0x02a700, 0x02b734,
 	0x02b740, 0x02b81d,
@@ -676,8 +684,8 @@
 	0xeeaa,
 	0xf0c0,
 	0xf0d0,
-	0xf93f,
-	0xf97b,
+	0xf90c,
+	0xf972,
 }
 
 // isGraphic lists the graphic runes not matched by IsPrint.
diff --git a/libgo/go/strings/builder.go b/libgo/go/strings/builder.go
index 3f33a87..6ff151d 100644
--- a/libgo/go/strings/builder.go
+++ b/libgo/go/strings/builder.go
@@ -24,6 +24,7 @@
 // USE CAREFULLY!
 // This was copied from the runtime; see issues 23382 and 7921.
 //go:nosplit
+//go:nocheckptr
 func noescape(p unsafe.Pointer) unsafe.Pointer {
 	x := uintptr(p)
 	return unsafe.Pointer(x ^ 0)
diff --git a/libgo/go/strings/builder_test.go b/libgo/go/strings/builder_test.go
index 63130d2..fbf6617 100644
--- a/libgo/go/strings/builder_test.go
+++ b/libgo/go/strings/builder_test.go
@@ -185,21 +185,6 @@
 	if runtime.Compiler == "gccgo" {
 		t.Skip("skip for gccgo until escape analysis improves")
 	}
-	var b Builder
-	const msg = "hello"
-	b.Grow(len(msg) * 2) // because AllocsPerRun does an extra "warm-up" iteration
-	var s string
-	allocs := int(testing.AllocsPerRun(1, func() {
-		b.WriteString("hello")
-		s = b.String()
-	}))
-	if want := msg + msg; s != want {
-		t.Errorf("String: got %#q; want %#q", s, want)
-	}
-	if allocs > 0 {
-		t.Fatalf("got %d alloc(s); want 0", allocs)
-	}
-
 	// Issue 23382; verify that copyCheck doesn't force the
 	// Builder to escape and be heap allocated.
 	n := testing.AllocsPerRun(10000, func() {
diff --git a/libgo/go/strings/strings.go b/libgo/go/strings/strings.go
index cee315c..69f51b6 100644
--- a/libgo/go/strings/strings.go
+++ b/libgo/go/strings/strings.go
@@ -969,7 +969,8 @@
 }
 
 // EqualFold reports whether s and t, interpreted as UTF-8 strings,
-// are equal under Unicode case-folding.
+// are equal under Unicode case-folding, which is a more general
+// form of case-insensitivity.
 func EqualFold(s, t string) bool {
 	for s != "" && t != "" {
 		// Extract first rune from each string.
@@ -1093,7 +1094,7 @@
 		i++
 		fails++
 		if fails >= 4+i>>4 && i < t {
-			// See comment in ../bytes/bytes_generic.go.
+			// See comment in ../bytes/bytes.go.
 			j := indexRabinKarp(s[i:], substr)
 			if j < 0 {
 				return -1
diff --git a/libgo/go/strings/strings_test.go b/libgo/go/strings/strings_test.go
index 76d827b..7eddce5 100644
--- a/libgo/go/strings/strings_test.go
+++ b/libgo/go/strings/strings_test.go
@@ -195,10 +195,12 @@
 	}
 }
 
-func TestIndex(t *testing.T)        { runIndexTests(t, Index, "Index", indexTests) }
-func TestLastIndex(t *testing.T)    { runIndexTests(t, LastIndex, "LastIndex", lastIndexTests) }
-func TestIndexAny(t *testing.T)     { runIndexTests(t, IndexAny, "IndexAny", indexAnyTests) }
-func TestLastIndexAny(t *testing.T) { runIndexTests(t, LastIndexAny, "LastIndexAny", lastIndexAnyTests) }
+func TestIndex(t *testing.T)     { runIndexTests(t, Index, "Index", indexTests) }
+func TestLastIndex(t *testing.T) { runIndexTests(t, LastIndex, "LastIndex", lastIndexTests) }
+func TestIndexAny(t *testing.T)  { runIndexTests(t, IndexAny, "IndexAny", indexAnyTests) }
+func TestLastIndexAny(t *testing.T) {
+	runIndexTests(t, LastIndexAny, "LastIndexAny", lastIndexAnyTests)
+}
 
 func TestIndexByte(t *testing.T) {
 	for _, tt := range indexTests {
diff --git a/libgo/go/sync/atomic/atomic_test.go b/libgo/go/sync/atomic/atomic_test.go
index 39c40c6..286eadc 100644
--- a/libgo/go/sync/atomic/atomic_test.go
+++ b/libgo/go/sync/atomic/atomic_test.go
@@ -1140,6 +1140,9 @@
 	StoreUintptr(addr, new)
 }
 
+//go:nocheckptr
+// This code is just testing that LoadPointer/StorePointer operate
+// atomically; it's not actually calculating pointers.
 func hammerStoreLoadPointer(t *testing.T, paddr unsafe.Pointer) {
 	addr := (*unsafe.Pointer)(paddr)
 	v := uintptr(LoadPointer(addr))
@@ -1391,15 +1394,8 @@
 	// Unaligned 64-bit atomics on 32-bit systems are
 	// a continual source of pain. Test that on 32-bit systems they crash
 	// instead of failing silently.
-
-	switch runtime.GOARCH {
-	default:
-		if !arch32 {
-			t.Skip("test only runs on 32-bit systems")
-		}
-	case "amd64p32":
-		// amd64p32 can handle unaligned atomics.
-		t.Skipf("test not needed on %v", runtime.GOARCH)
+	if !arch32 {
+		t.Skip("test only runs on 32-bit systems")
 	}
 
 	x := make([]uint32, 4)
diff --git a/libgo/go/sync/mutex.go b/libgo/go/sync/mutex.go
index 11ad20c..3028552 100644
--- a/libgo/go/sync/mutex.go
+++ b/libgo/go/sync/mutex.go
@@ -216,7 +216,8 @@
 			old = m.state
 		}
 	} else {
-		// Starving mode: handoff mutex ownership to the next waiter.
+		// Starving mode: handoff mutex ownership to the next waiter, and yield
+		// our time slice so that the next waiter can start to run immediately.
 		// Note: mutexLocked is not set, the waiter will set it after wakeup.
 		// But mutex is still considered locked if mutexStarving is set,
 		// so new coming goroutines won't acquire it.
diff --git a/libgo/go/sync/waitgroup_test.go b/libgo/go/sync/waitgroup_test.go
index 4ab438c..c569e0f 100644
--- a/libgo/go/sync/waitgroup_test.go
+++ b/libgo/go/sync/waitgroup_test.go
@@ -147,7 +147,7 @@
 		}
 	}()
 	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(4))
-	done := make(chan interface{}, 2)
+	done := make(chan interface{}, 3)
 	// The detection is opportunistically, so we want it to panic
 	// at least in one run out of a million.
 	for i := 0; i < 1e6; i++ {
@@ -171,8 +171,13 @@
 			}()
 			wg.Wait()
 		}()
-		wg.Wait()
-		for j := 0; j < 2; j++ {
+		go func() {
+			defer func() {
+				done <- recover()
+			}()
+			wg.Wait()
+		}()
+		for j := 0; j < 3; j++ {
 			if err := <-done; err != nil {
 				panic(err)
 			}
diff --git a/libgo/go/syscall/dirent.go b/libgo/go/syscall/dirent.go
index 58c34c3..5726449 100644
--- a/libgo/go/syscall/dirent.go
+++ b/libgo/go/syscall/dirent.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package syscall
 
diff --git a/libgo/go/syscall/dirent_bsd_test.go b/libgo/go/syscall/dirent_test.go
similarity index 97%
rename from libgo/go/syscall/dirent_bsd_test.go
rename to libgo/go/syscall/dirent_test.go
index 43b667b..f631533 100644
--- a/libgo/go/syscall/dirent_bsd_test.go
+++ b/libgo/go/syscall/dirent_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin dragonfly freebsd netbsd openbsd
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
 
 package syscall_test
 
diff --git a/libgo/go/syscall/env_plan9.go b/libgo/go/syscall/env_plan9.go
index 9a8a837..e403a25 100644
--- a/libgo/go/syscall/env_plan9.go
+++ b/libgo/go/syscall/env_plan9.go
@@ -74,7 +74,21 @@
 }
 
 func Clearenv() {
-	RawSyscall(SYS_RFORK, RFCENVG, 0, 0)
+	// Creating a new environment group using rfork(RFCENVG) can race
+	// with access to files in /env (e.g. from Setenv or Getenv).
+	// Remove all environment variables in current environment group instead.
+	fd, err := open("/env", O_RDONLY)
+	if err != nil {
+		return
+	}
+	defer Close(fd)
+	files, err := readdirnames(fd)
+	if err != nil {
+		return
+	}
+	for _, key := range files {
+		Remove("/env/" + key)
+	}
 }
 
 func Unsetenv(key string) error {
diff --git a/libgo/go/syscall/env_unix.go b/libgo/go/syscall/env_unix.go
index c22af18..3564f7f 100644
--- a/libgo/go/syscall/env_unix.go
+++ b/libgo/go/syscall/env_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 // Unix environment variables.
 
diff --git a/libgo/go/syscall/exec_linux_test.go b/libgo/go/syscall/exec_linux_test.go
index 7bd3910..1a44f04 100644
--- a/libgo/go/syscall/exec_linux_test.go
+++ b/libgo/go/syscall/exec_linux_test.go
@@ -34,6 +34,14 @@
 }
 
 func skipInContainer(t *testing.T) {
+	// TODO: the callers of this func are using this func to skip
+	// tests when running as some sort of "fake root" that's uid 0
+	// but lacks certain Linux capabilities. Most of the Go builds
+	// run in privileged containers, though, where root is much
+	// closer (if not identical) to the real root. We should test
+	// for what we need exactly (which capabilities are active?),
+	// instead of just assuming "docker == bad". Then we'd get more test
+	// coverage on a bunch of builders too.
 	if isDocker() {
 		t.Skip("skip this test in Docker container")
 	}
@@ -42,6 +50,18 @@
 	}
 }
 
+func skipNoUserNamespaces(t *testing.T) {
+	if _, err := os.Stat("/proc/self/ns/user"); err != nil {
+		if os.IsNotExist(err) {
+			t.Skip("kernel doesn't support user namespaces")
+		}
+		if os.IsPermission(err) {
+			t.Skip("unable to test user namespaces due to permissions")
+		}
+		t.Fatalf("Failed to stat /proc/self/ns/user: %v", err)
+	}
+}
+
 func skipUnprivilegedUserClone(t *testing.T) {
 	// Skip the test if the sysctl that prevents unprivileged user
 	// from creating user namespaces is enabled.
@@ -64,15 +84,7 @@
 
 func checkUserNS(t *testing.T) {
 	skipInContainer(t)
-	if _, err := os.Stat("/proc/self/ns/user"); err != nil {
-		if os.IsNotExist(err) {
-			t.Skip("kernel doesn't support user namespaces")
-		}
-		if os.IsPermission(err) {
-			t.Skip("unable to test user namespaces due to permissions")
-		}
-		t.Fatalf("Failed to stat /proc/self/ns/user: %v", err)
-	}
+	skipNoUserNamespaces(t)
 	if isChrooted(t) {
 		// create_user_ns in the kernel (see
 		// https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/kernel/user_namespace.c)
@@ -305,6 +317,7 @@
 		"uid=0(root) gid=0(root) groups=0(root),65534(nogroup)",
 		"uid=0(root) gid=0(root) groups=0(root),65534",
 		"uid=0(root) gid=0(root) groups=0(root),65534(nobody),65534(nobody),65534(nobody),65534(nobody),65534(nobody),65534(nobody),65534(nobody),65534(nobody),65534(nobody),65534(nobody)", // Alpine; see https://golang.org/issue/19938
+		"uid=0(root) gid=0(root) groups=0(root) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023",                                                                               // CentOS with SELinux context, see https://golang.org/issue/34547
 	}
 	for _, e := range expected {
 		if strOut == e {
@@ -336,14 +349,6 @@
 		t.Skip("kernel prohibits unshare in unprivileged process, unless using user namespace")
 	}
 
-	// When running under the Go continuous build, skip tests for
-	// now when under Kubernetes. (where things are root but not quite)
-	// Both of these are our own environment variables.
-	// See Issue 12815.
-	if os.Getenv("GO_BUILDER_NAME") != "" && os.Getenv("IN_KUBERNETES") == "1" {
-		t.Skip("skipping test on Kubernetes-based builders; see Issue 12815")
-	}
-
 	d, err := ioutil.TempDir("", "unshare")
 	if err != nil {
 		t.Fatalf("tempdir: %v", err)
@@ -386,14 +391,6 @@
 		t.Skip("kernel prohibits unshare in unprivileged process, unless using user namespace")
 	}
 
-	// When running under the Go continuous build, skip tests for
-	// now when under Kubernetes. (where things are root but not quite)
-	// Both of these are our own environment variables.
-	// See Issue 12815.
-	if os.Getenv("GO_BUILDER_NAME") != "" && os.Getenv("IN_KUBERNETES") == "1" {
-		t.Skip("skipping test on Kubernetes-based builders; see Issue 12815")
-	}
-
 	d, err := ioutil.TempDir("", "unshare")
 	if err != nil {
 		t.Fatalf("tempdir: %v", err)
@@ -573,6 +570,7 @@
 }
 
 func TestAmbientCapsUserns(t *testing.T) {
+	checkUserNS(t)
 	testAmbientCaps(t, true)
 }
 
@@ -580,14 +578,6 @@
 	skipInContainer(t)
 	mustSupportAmbientCaps(t)
 
-	// When running under the Go continuous build, skip tests for
-	// now when under Kubernetes. (where things are root but not quite)
-	// Both of these are our own environment variables.
-	// See Issue 12815.
-	if os.Getenv("GO_BUILDER_NAME") != "" && os.Getenv("IN_KUBERNETES") == "1" {
-		t.Skip("skipping test on Kubernetes-based builders; see Issue 12815")
-	}
-
 	skipUnprivilegedUserClone(t)
 
 	// skip on android, due to lack of lookup support
diff --git a/libgo/go/syscall/fs_js.go b/libgo/go/syscall/fs_js.go
index 1b835c5..16d9f58 100644
--- a/libgo/go/syscall/fs_js.go
+++ b/libgo/go/syscall/fs_js.go
@@ -34,6 +34,7 @@
 type jsFile struct {
 	path    string
 	entries []string
+	dirIdx  int // entries[:dirIdx] have already been returned in ReadDirent
 	pos     int64
 	seeked  bool
 }
@@ -141,8 +142,8 @@
 	}
 
 	n := 0
-	for len(f.entries) > 0 {
-		entry := f.entries[0]
+	for f.dirIdx < len(f.entries) {
+		entry := f.entries[f.dirIdx]
 		l := 2 + len(entry)
 		if l > len(buf) {
 			break
@@ -152,7 +153,7 @@
 		copy(buf[2:], entry)
 		buf = buf[l:]
 		n += l
-		f.entries = f.entries[1:]
+		f.dirIdx++
 	}
 
 	return n, nil
@@ -259,7 +260,7 @@
 	if err := checkPath(path); err != nil {
 		return err
 	}
-	if jsFS.Get("lchown") == js.Undefined() {
+	if jsFS.Get("lchown").IsUndefined() {
 		// fs.lchown is unavailable on Linux until Node.js 10.6.0
 		// TODO(neelance): remove when we require at least this Node.js version
 		return ENOSYS
@@ -404,6 +405,14 @@
 		return n, err
 	}
 
+	if faketime && (fd == 1 || fd == 2) {
+		n := faketimeWrite(fd, b)
+		if n < 0 {
+			return 0, errnoErr(Errno(-n))
+		}
+		return n, nil
+	}
+
 	buf := uint8Array.New(len(b))
 	js.CopyBytesToJS(buf, b)
 	n, err := fsCall("write", fd, buf, 0, len(b), nil)
@@ -462,6 +471,7 @@
 	}
 
 	f.seeked = true
+	f.dirIdx = 0 // Reset directory read position. See issue 35767.
 	f.pos = newPos
 	return newPos, nil
 }
@@ -489,7 +499,7 @@
 		var res callResult
 
 		if len(args) >= 1 { // on Node.js 8, fs.utimes calls the callback without any arguments
-			if jsErr := args[0]; jsErr != js.Null() {
+			if jsErr := args[0]; !jsErr.IsNull() {
 				res.err = mapJSError(jsErr)
 			}
 		}
diff --git a/libgo/go/syscall/getdirentries_test.go b/libgo/go/syscall/getdirentries_test.go
index 8505a0b..2a3419c 100644
--- a/libgo/go/syscall/getdirentries_test.go
+++ b/libgo/go/syscall/getdirentries_test.go
@@ -66,7 +66,11 @@
 		}
 		data := buf[:n]
 		for len(data) > 0 {
-			dirent := (*syscall.Dirent)(unsafe.Pointer(&data[0]))
+			// If multiple Dirents are written into buf, sometimes when we reach the final one,
+			// we have cap(buf) < Sizeof(Dirent). So use an appropriate slice to copy from data.
+			var dirent syscall.Dirent
+			copy((*[unsafe.Sizeof(dirent)]byte)(unsafe.Pointer(&dirent))[:], data)
+
 			data = data[dirent.Reclen:]
 			name := make([]byte, dirent.Namlen)
 			for i := 0; i < int(dirent.Namlen); i++ {
diff --git a/libgo/go/internal/cpu/cpu_amd64p32.go b/libgo/go/syscall/js/export_test.go
similarity index 77%
copy from libgo/go/internal/cpu/cpu_amd64p32.go
copy to libgo/go/syscall/js/export_test.go
index 177b14e..1b5ed3c 100644
--- a/libgo/go/internal/cpu/cpu_amd64p32.go
+++ b/libgo/go/syscall/js/export_test.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package cpu
+// +build js,wasm
 
-const GOARCH = "amd64p32"
+package js
+
+var JSGo = jsGo
diff --git a/libgo/go/syscall/js/func.go b/libgo/go/syscall/js/func.go
index 6b7f39b..6c145c9 100644
--- a/libgo/go/syscall/js/func.go
+++ b/libgo/go/syscall/js/func.go
@@ -64,7 +64,7 @@
 
 func handleEvent() {
 	cb := jsGo.Get("_pendingEvent")
-	if cb == Null() {
+	if cb.IsNull() {
 		return
 	}
 	jsGo.Set("_pendingEvent", Null())
diff --git a/libgo/go/syscall/js/js.go b/libgo/go/syscall/js/js.go
index 7300d2c..8a04399 100644
--- a/libgo/go/syscall/js/js.go
+++ b/libgo/go/syscall/js/js.go
@@ -12,6 +12,7 @@
 package js
 
 import (
+	"runtime"
 	"unsafe"
 )
 
@@ -20,7 +21,7 @@
 // The JavaScript value "undefined" is represented by the value 0.
 // A JavaScript number (64-bit float, except 0 and NaN) is represented by its IEEE 754 binary representation.
 // All other values are represented as an IEEE 754 binary representation of NaN with bits 0-31 used as
-// an ID and bits 32-33 used to differentiate between string, symbol, function and object.
+// an ID and bits 32-34 used to differentiate between string, symbol, function and object.
 type ref uint64
 
 // nanHead are the upper 32 bits of a ref which are set if the value is not encoded as an IEEE 754 number (see above).
@@ -33,21 +34,45 @@
 }
 
 // Value represents a JavaScript value. The zero value is the JavaScript value "undefined".
+// Values can be checked for equality with the Equal method.
 type Value struct {
-	ref ref
+	_     [0]func() // uncomparable; to make == not compile
+	ref   ref       // identifies a JavaScript value, see ref type
+	gcPtr *ref      // used to trigger the finalizer when the Value is not referenced any more
 }
 
+const (
+	// the type flags need to be in sync with wasm_exec.js
+	typeFlagNone = iota
+	typeFlagObject
+	typeFlagString
+	typeFlagSymbol
+	typeFlagFunction
+)
+
 // JSValue implements Wrapper interface.
 func (v Value) JSValue() Value {
 	return v
 }
 
-func makeValue(v ref) Value {
-	return Value{ref: v}
+func makeValue(r ref) Value {
+	var gcPtr *ref
+	typeFlag := (r >> 32) & 7
+	if (r>>32)&nanHead == nanHead && typeFlag != typeFlagNone {
+		gcPtr = new(ref)
+		*gcPtr = r
+		runtime.SetFinalizer(gcPtr, func(p *ref) {
+			finalizeRef(*p)
+		})
+	}
+
+	return Value{ref: r, gcPtr: gcPtr}
 }
 
-func predefValue(id uint32) Value {
-	return Value{ref: nanHead<<32 | ref(id)}
+func finalizeRef(r ref)
+
+func predefValue(id uint32, typeFlag byte) Value {
+	return Value{ref: (nanHead|ref(typeFlag))<<32 | ref(id)}
 }
 
 func floatValue(f float64) Value {
@@ -73,28 +98,48 @@
 
 var (
 	valueUndefined = Value{ref: 0}
-	valueNaN       = predefValue(0)
-	valueZero      = predefValue(1)
-	valueNull      = predefValue(2)
-	valueTrue      = predefValue(3)
-	valueFalse     = predefValue(4)
-	valueGlobal    = predefValue(5)
-	jsGo           = predefValue(6) // instance of the Go class in JavaScript
+	valueNaN       = predefValue(0, typeFlagNone)
+	valueZero      = predefValue(1, typeFlagNone)
+	valueNull      = predefValue(2, typeFlagNone)
+	valueTrue      = predefValue(3, typeFlagNone)
+	valueFalse     = predefValue(4, typeFlagNone)
+	valueGlobal    = predefValue(5, typeFlagObject)
+	jsGo           = predefValue(6, typeFlagObject) // instance of the Go class in JavaScript
 
 	objectConstructor = valueGlobal.Get("Object")
 	arrayConstructor  = valueGlobal.Get("Array")
 )
 
+// Equal reports whether v and w are equal according to JavaScript's === operator.
+func (v Value) Equal(w Value) bool {
+	return v.ref == w.ref && v.ref != valueNaN.ref
+}
+
 // Undefined returns the JavaScript value "undefined".
 func Undefined() Value {
 	return valueUndefined
 }
 
+// IsUndefined reports whether v is the JavaScript value "undefined".
+func (v Value) IsUndefined() bool {
+	return v.ref == valueUndefined.ref
+}
+
 // Null returns the JavaScript value "null".
 func Null() Value {
 	return valueNull
 }
 
+// IsNull reports whether v is the JavaScript value "null".
+func (v Value) IsNull() bool {
+	return v.ref == valueNull.ref
+}
+
+// IsNaN reports whether v is the JavaScript value "NaN".
+func (v Value) IsNaN() bool {
+	return v.ref == valueNaN.ref
+}
+
 // Global returns the JavaScript global object, usually "window" or "global".
 func Global() Value {
 	return valueGlobal
@@ -232,16 +277,18 @@
 	if v.isNumber() {
 		return TypeNumber
 	}
-	typeFlag := v.ref >> 32 & 3
+	typeFlag := (v.ref >> 32) & 7
 	switch typeFlag {
-	case 1:
+	case typeFlagObject:
+		return TypeObject
+	case typeFlagString:
 		return TypeString
-	case 2:
+	case typeFlagSymbol:
 		return TypeSymbol
-	case 3:
+	case typeFlagFunction:
 		return TypeFunction
 	default:
-		return TypeObject
+		panic("bad type flag")
 	}
 }
 
@@ -251,7 +298,9 @@
 	if vType := v.Type(); !vType.isObject() {
 		panic(&ValueError{"Value.Get", vType})
 	}
-	return makeValue(valueGet(v.ref, p))
+	r := makeValue(valueGet(v.ref, p))
+	runtime.KeepAlive(v)
+	return r
 }
 
 func valueGet(v ref, p string) ref
@@ -262,18 +311,35 @@
 	if vType := v.Type(); !vType.isObject() {
 		panic(&ValueError{"Value.Set", vType})
 	}
-	valueSet(v.ref, p, ValueOf(x).ref)
+	xv := ValueOf(x)
+	valueSet(v.ref, p, xv.ref)
+	runtime.KeepAlive(v)
+	runtime.KeepAlive(xv)
 }
 
 func valueSet(v ref, p string, x ref)
 
+// Delete deletes the JavaScript property p of value v.
+// It panics if v is not a JavaScript object.
+func (v Value) Delete(p string) {
+	if vType := v.Type(); !vType.isObject() {
+		panic(&ValueError{"Value.Delete", vType})
+	}
+	valueDelete(v.ref, p)
+	runtime.KeepAlive(v)
+}
+
+func valueDelete(v ref, p string)
+
 // Index returns JavaScript index i of value v.
 // It panics if v is not a JavaScript object.
 func (v Value) Index(i int) Value {
 	if vType := v.Type(); !vType.isObject() {
 		panic(&ValueError{"Value.Index", vType})
 	}
-	return makeValue(valueIndex(v.ref, i))
+	r := makeValue(valueIndex(v.ref, i))
+	runtime.KeepAlive(v)
+	return r
 }
 
 func valueIndex(v ref, i int) ref
@@ -284,17 +350,23 @@
 	if vType := v.Type(); !vType.isObject() {
 		panic(&ValueError{"Value.SetIndex", vType})
 	}
-	valueSetIndex(v.ref, i, ValueOf(x).ref)
+	xv := ValueOf(x)
+	valueSetIndex(v.ref, i, xv.ref)
+	runtime.KeepAlive(v)
+	runtime.KeepAlive(xv)
 }
 
 func valueSetIndex(v ref, i int, x ref)
 
-func makeArgs(args []interface{}) []ref {
-	argVals := make([]ref, len(args))
+func makeArgs(args []interface{}) ([]Value, []ref) {
+	argVals := make([]Value, len(args))
+	argRefs := make([]ref, len(args))
 	for i, arg := range args {
-		argVals[i] = ValueOf(arg).ref
+		v := ValueOf(arg)
+		argVals[i] = v
+		argRefs[i] = v.ref
 	}
-	return argVals
+	return argVals, argRefs
 }
 
 // Length returns the JavaScript property "length" of v.
@@ -303,7 +375,9 @@
 	if vType := v.Type(); !vType.isObject() {
 		panic(&ValueError{"Value.SetIndex", vType})
 	}
-	return valueLength(v.ref)
+	r := valueLength(v.ref)
+	runtime.KeepAlive(v)
+	return r
 }
 
 func valueLength(v ref) int
@@ -312,7 +386,10 @@
 // It panics if v has no method m.
 // The arguments get mapped to JavaScript values according to the ValueOf function.
 func (v Value) Call(m string, args ...interface{}) Value {
-	res, ok := valueCall(v.ref, m, makeArgs(args))
+	argVals, argRefs := makeArgs(args)
+	res, ok := valueCall(v.ref, m, argRefs)
+	runtime.KeepAlive(v)
+	runtime.KeepAlive(argVals)
 	if !ok {
 		if vType := v.Type(); !vType.isObject() { // check here to avoid overhead in success case
 			panic(&ValueError{"Value.Call", vType})
@@ -331,7 +408,10 @@
 // It panics if v is not a JavaScript function.
 // The arguments get mapped to JavaScript values according to the ValueOf function.
 func (v Value) Invoke(args ...interface{}) Value {
-	res, ok := valueInvoke(v.ref, makeArgs(args))
+	argVals, argRefs := makeArgs(args)
+	res, ok := valueInvoke(v.ref, argRefs)
+	runtime.KeepAlive(v)
+	runtime.KeepAlive(argVals)
 	if !ok {
 		if vType := v.Type(); vType != TypeFunction { // check here to avoid overhead in success case
 			panic(&ValueError{"Value.Invoke", vType})
@@ -347,7 +427,10 @@
 // It panics if v is not a JavaScript function.
 // The arguments get mapped to JavaScript values according to the ValueOf function.
 func (v Value) New(args ...interface{}) Value {
-	res, ok := valueNew(v.ref, makeArgs(args))
+	argVals, argRefs := makeArgs(args)
+	res, ok := valueNew(v.ref, argRefs)
+	runtime.KeepAlive(v)
+	runtime.KeepAlive(argVals)
 	if !ok {
 		if vType := v.Type(); vType != TypeFunction { // check here to avoid overhead in success case
 			panic(&ValueError{"Value.Invoke", vType})
@@ -362,7 +445,7 @@
 func (v Value) isNumber() bool {
 	return v.ref == valueZero.ref ||
 		v.ref == valueNaN.ref ||
-		(v.ref != valueUndefined.ref && v.ref>>32&nanHead != nanHead)
+		(v.ref != valueUndefined.ref && (v.ref>>32)&nanHead != nanHead)
 }
 
 func (v Value) float(method string) float64 {
@@ -427,15 +510,15 @@
 func (v Value) String() string {
 	switch v.Type() {
 	case TypeString:
-		return jsString(v.ref)
+		return jsString(v)
 	case TypeUndefined:
 		return "<undefined>"
 	case TypeNull:
 		return "<null>"
 	case TypeBoolean:
-		return "<boolean: " + jsString(v.ref) + ">"
+		return "<boolean: " + jsString(v) + ">"
 	case TypeNumber:
-		return "<number: " + jsString(v.ref) + ">"
+		return "<number: " + jsString(v) + ">"
 	case TypeSymbol:
 		return "<symbol>"
 	case TypeObject:
@@ -447,10 +530,12 @@
 	}
 }
 
-func jsString(v ref) string {
-	str, length := valuePrepareString(v)
+func jsString(v Value) string {
+	str, length := valuePrepareString(v.ref)
+	runtime.KeepAlive(v)
 	b := make([]byte, length)
 	valueLoadString(str, b)
+	finalizeRef(str)
 	return string(b)
 }
 
@@ -460,7 +545,10 @@
 
 // InstanceOf reports whether v is an instance of type t according to JavaScript's instanceof operator.
 func (v Value) InstanceOf(t Value) bool {
-	return valueInstanceOf(v.ref, t.ref)
+	r := valueInstanceOf(v.ref, t.ref)
+	runtime.KeepAlive(v)
+	runtime.KeepAlive(t)
+	return r
 }
 
 func valueInstanceOf(v ref, t ref) bool
@@ -482,6 +570,7 @@
 // CopyBytesToGo panics if src is not an Uint8Array.
 func CopyBytesToGo(dst []byte, src Value) int {
 	n, ok := copyBytesToGo(dst, src.ref)
+	runtime.KeepAlive(src)
 	if !ok {
 		panic("syscall/js: CopyBytesToGo: expected src to be an Uint8Array")
 	}
@@ -495,6 +584,7 @@
 // CopyBytesToJS panics if dst is not an Uint8Array.
 func CopyBytesToJS(dst Value, src []byte) int {
 	n, ok := copyBytesToJS(dst.ref, src)
+	runtime.KeepAlive(dst)
 	if !ok {
 		panic("syscall/js: CopyBytesToJS: expected dst to be an Uint8Array")
 	}
diff --git a/libgo/go/syscall/js/js_test.go b/libgo/go/syscall/js/js_test.go
index 7a1e346..fea4c13 100644
--- a/libgo/go/syscall/js/js_test.go
+++ b/libgo/go/syscall/js/js_test.go
@@ -18,6 +18,7 @@
 import (
 	"fmt"
 	"math"
+	"runtime"
 	"syscall/js"
 	"testing"
 )
@@ -53,7 +54,7 @@
 	if got := dummys.Get("otherBool").Bool(); got != want {
 		t.Errorf("got %#v, want %#v", got, want)
 	}
-	if dummys.Get("someBool") != dummys.Get("someBool") {
+	if !dummys.Get("someBool").Equal(dummys.Get("someBool")) {
 		t.Errorf("same value not equal")
 	}
 }
@@ -68,7 +69,7 @@
 	if got := dummys.Get("otherString").String(); got != want {
 		t.Errorf("got %#v, want %#v", got, want)
 	}
-	if dummys.Get("someString") != dummys.Get("someString") {
+	if !dummys.Get("someString").Equal(dummys.Get("someString")) {
 		t.Errorf("same value not equal")
 	}
 
@@ -105,7 +106,7 @@
 	if got := dummys.Get("otherInt").Int(); got != want {
 		t.Errorf("got %#v, want %#v", got, want)
 	}
-	if dummys.Get("someInt") != dummys.Get("someInt") {
+	if !dummys.Get("someInt").Equal(dummys.Get("someInt")) {
 		t.Errorf("same value not equal")
 	}
 	if got := dummys.Get("zero").Int(); got != 0 {
@@ -141,20 +142,20 @@
 	if got := dummys.Get("otherFloat").Float(); got != want {
 		t.Errorf("got %#v, want %#v", got, want)
 	}
-	if dummys.Get("someFloat") != dummys.Get("someFloat") {
+	if !dummys.Get("someFloat").Equal(dummys.Get("someFloat")) {
 		t.Errorf("same value not equal")
 	}
 }
 
 func TestObject(t *testing.T) {
-	if dummys.Get("someArray") != dummys.Get("someArray") {
+	if !dummys.Get("someArray").Equal(dummys.Get("someArray")) {
 		t.Errorf("same value not equal")
 	}
 
 	// An object and its prototype should not be equal.
 	proto := js.Global().Get("Object").Get("prototype")
 	o := js.Global().Call("eval", "new Object()")
-	if proto == o {
+	if proto.Equal(o) {
 		t.Errorf("object equals to its prototype")
 	}
 }
@@ -167,26 +168,66 @@
 	}
 }
 
+func TestEqual(t *testing.T) {
+	if !dummys.Get("someFloat").Equal(dummys.Get("someFloat")) {
+		t.Errorf("same float is not equal")
+	}
+	if !dummys.Get("emptyObj").Equal(dummys.Get("emptyObj")) {
+		t.Errorf("same object is not equal")
+	}
+	if dummys.Get("someFloat").Equal(dummys.Get("someInt")) {
+		t.Errorf("different values are not unequal")
+	}
+}
+
 func TestNaN(t *testing.T) {
-	want := js.ValueOf(math.NaN())
-	got := dummys.Get("NaN")
-	if got != want {
-		t.Errorf("got %#v, want %#v", got, want)
+	if !dummys.Get("NaN").IsNaN() {
+		t.Errorf("JS NaN is not NaN")
+	}
+	if !js.ValueOf(math.NaN()).IsNaN() {
+		t.Errorf("Go NaN is not NaN")
+	}
+	if dummys.Get("NaN").Equal(dummys.Get("NaN")) {
+		t.Errorf("NaN is equal to NaN")
 	}
 }
 
 func TestUndefined(t *testing.T) {
-	dummys.Set("test", js.Undefined())
-	if dummys == js.Undefined() || dummys.Get("test") != js.Undefined() || dummys.Get("xyz") != js.Undefined() {
-		t.Errorf("js.Undefined expected")
+	if !js.Undefined().IsUndefined() {
+		t.Errorf("undefined is not undefined")
+	}
+	if !js.Undefined().Equal(js.Undefined()) {
+		t.Errorf("undefined is not equal to undefined")
+	}
+	if dummys.IsUndefined() {
+		t.Errorf("object is undefined")
+	}
+	if js.Undefined().IsNull() {
+		t.Errorf("undefined is null")
+	}
+	if dummys.Set("test", js.Undefined()); !dummys.Get("test").IsUndefined() {
+		t.Errorf("could not set undefined")
 	}
 }
 
 func TestNull(t *testing.T) {
-	dummys.Set("test1", nil)
-	dummys.Set("test2", js.Null())
-	if dummys == js.Null() || dummys.Get("test1") != js.Null() || dummys.Get("test2") != js.Null() {
-		t.Errorf("js.Null expected")
+	if !js.Null().IsNull() {
+		t.Errorf("null is not null")
+	}
+	if !js.Null().Equal(js.Null()) {
+		t.Errorf("null is not equal to null")
+	}
+	if dummys.IsNull() {
+		t.Errorf("object is null")
+	}
+	if js.Null().IsUndefined() {
+		t.Errorf("null is undefined")
+	}
+	if dummys.Set("test", js.Null()); !dummys.Get("test").IsNull() {
+		t.Errorf("could not set null")
+	}
+	if dummys.Set("test", nil); !dummys.Get("test").IsNull() {
+		t.Errorf("could not set nil")
 	}
 }
 
@@ -212,6 +253,18 @@
 	})
 }
 
+func TestDelete(t *testing.T) {
+	dummys.Set("test", 42)
+	dummys.Delete("test")
+	if dummys.Call("hasOwnProperty", "test").Bool() {
+		t.Errorf("property still exists")
+	}
+
+	expectValueError(t, func() {
+		dummys.Get("zero").Delete("badField")
+	})
+}
+
 func TestIndex(t *testing.T) {
 	if got := dummys.Get("someArray").Index(1).Int(); got != 42 {
 		t.Errorf("got %#v, want %#v", got, 42)
@@ -328,7 +381,7 @@
 
 func TestZeroValue(t *testing.T) {
 	var v js.Value
-	if v != js.Undefined() {
+	if !v.IsUndefined() {
 		t.Error("zero js.Value is not js.Undefined()")
 	}
 }
@@ -366,6 +419,25 @@
 	}
 }
 
+func TestInterleavedFunctions(t *testing.T) {
+	c1 := make(chan struct{})
+	c2 := make(chan struct{})
+
+	js.Global().Get("setTimeout").Invoke(js.FuncOf(func(this js.Value, args []js.Value) interface{} {
+		c1 <- struct{}{}
+		<-c2
+		return nil
+	}), 0)
+
+	<-c1
+	c2 <- struct{}{}
+	// this goroutine is running, but the callback of setTimeout did not return yet, invoke another function now
+	f := js.FuncOf(func(this js.Value, args []js.Value) interface{} {
+		return nil
+	})
+	f.Invoke()
+}
+
 func ExampleFuncOf() {
 	var cb js.Func
 	cb = js.FuncOf(func(this js.Value, args []js.Value) interface{} {
@@ -484,3 +556,38 @@
 		})
 	}
 }
+
+func TestGarbageCollection(t *testing.T) {
+	before := js.JSGo.Get("_values").Length()
+	for i := 0; i < 1000; i++ {
+		_ = js.Global().Get("Object").New().Call("toString").String()
+		runtime.GC()
+	}
+	after := js.JSGo.Get("_values").Length()
+	if after-before > 500 {
+		t.Errorf("garbage collection ineffective")
+	}
+}
+
+// BenchmarkDOM is a simple benchmark which emulates a webapp making DOM operations.
+// It creates a div, and sets its id. Then searches by that id and sets some data.
+// Finally it removes that div.
+func BenchmarkDOM(b *testing.B) {
+	document := js.Global().Get("document")
+	if document.IsUndefined() {
+		b.Skip("Not a browser environment. Skipping.")
+	}
+	const data = "someString"
+	for i := 0; i < b.N; i++ {
+		div := document.Call("createElement", "div")
+		div.Call("setAttribute", "id", "myDiv")
+		document.Get("body").Call("appendChild", div)
+		myDiv := document.Call("getElementById", "myDiv")
+		myDiv.Set("innerHTML", data)
+
+		if got, want := myDiv.Get("innerHTML").String(), data; got != want {
+			b.Errorf("got %s, want %s", got, want)
+		}
+		document.Get("body").Call("removeChild", div)
+	}
+}
diff --git a/libgo/go/syscall/lsf_linux.go b/libgo/go/syscall/lsf_linux.go
index 16b702a..f38de62 100644
--- a/libgo/go/syscall/lsf_linux.go
+++ b/libgo/go/syscall/lsf_linux.go
@@ -23,6 +23,8 @@
 // Deprecated: Use golang.org/x/net/bpf instead.
 func LsfSocket(ifindex, proto int) (int, error) {
 	var lsall SockaddrLinklayer
+	// This is missing SOCK_CLOEXEC, but adding the flag
+	// could break callers.
 	s, e := Socket(AF_PACKET, SOCK_RAW, proto)
 	if e != nil {
 		return 0, e
@@ -46,7 +48,7 @@
 
 // Deprecated: Use golang.org/x/net/bpf instead.
 func SetLsfPromisc(name string, m bool) error {
-	s, e := Socket(AF_INET, SOCK_DGRAM, 0)
+	s, e := cloexecSocket(AF_INET, SOCK_DGRAM, 0)
 	if e != nil {
 		return e
 	}
diff --git a/libgo/go/syscall/net_js.go b/libgo/go/syscall/net_js.go
index d5bf1f4..25f171b 100644
--- a/libgo/go/syscall/net_js.go
+++ b/libgo/go/syscall/net_js.go
@@ -42,7 +42,7 @@
 const (
 	_ = iota
 	F_DUPFD_CLOEXEC
-	SYS_FCNTL = 500 // unsupported; same value as net_nacl.go
+	SYS_FCNTL = 500 // unsupported
 )
 
 type Sockaddr interface {
diff --git a/libgo/go/syscall/netlink_linux.go b/libgo/go/syscall/netlink_linux.go
index 1cda8c7..0937ff7 100644
--- a/libgo/go/syscall/netlink_linux.go
+++ b/libgo/go/syscall/netlink_linux.go
@@ -50,7 +50,7 @@
 // NetlinkRIB returns routing information base, as known as RIB, which
 // consists of network facility information, states and parameters.
 func NetlinkRIB(proto, family int) ([]byte, error) {
-	s, err := Socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)
+	s, err := cloexecSocket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)
 	if err != nil {
 		return nil, err
 	}
diff --git a/libgo/go/syscall/route_freebsd_64bit.go b/libgo/go/syscall/route_freebsd_64bit.go
index 728837e..e70ba3d 100644
--- a/libgo/go/syscall/route_freebsd_64bit.go
+++ b/libgo/go/syscall/route_freebsd_64bit.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build freebsd,amd64
+// +build freebsd,amd64 freebsd,arm64
 
 package syscall
 
diff --git a/libgo/go/syscall/security_windows.go b/libgo/go/syscall/security_windows.go
index db80d98..3a75759 100644
--- a/libgo/go/syscall/security_windows.go
+++ b/libgo/go/syscall/security_windows.go
@@ -163,7 +163,7 @@
 		return "", e
 	}
 	defer LocalFree((Handle)(unsafe.Pointer(s)))
-	return UTF16ToString((*[256]uint16)(unsafe.Pointer(s))[:]), nil
+	return utf16PtrToString(s, 256), nil
 }
 
 // Len returns the length, in bytes, of a valid security identifier sid.
diff --git a/libgo/go/syscall/sock_cloexec_linux.go b/libgo/go/syscall/sock_cloexec_linux.go
new file mode 100644
index 0000000..600cf25
--- /dev/null
+++ b/libgo/go/syscall/sock_cloexec_linux.go
@@ -0,0 +1,29 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package syscall
+
+// This is a stripped down version of sysSocket from net/sock_cloexec.go.
+func cloexecSocket(family, sotype, proto int) (int, error) {
+	s, err := Socket(family, sotype|SOCK_CLOEXEC, proto)
+	switch err {
+	case nil:
+		return s, nil
+	default:
+		return -1, err
+	case EINVAL:
+	}
+
+	ForkLock.RLock()
+	s, err = Socket(family, sotype, proto)
+	if err == nil {
+		CloseOnExec(s)
+	}
+	ForkLock.RUnlock()
+	if err != nil {
+		Close(s)
+		return -1, err
+	}
+	return s, nil
+}
diff --git a/libgo/go/syscall/sockcmsg_dragonfly.go b/libgo/go/syscall/sockcmsg_dragonfly.go
new file mode 100644
index 0000000..d217d9e
--- /dev/null
+++ b/libgo/go/syscall/sockcmsg_dragonfly.go
@@ -0,0 +1,16 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package syscall
+
+// Round the length of a raw sockaddr up to align it properly.
+func cmsgAlignOf(salen int) int {
+	salign := sizeofPtr
+	if sizeofPtr == 8 && !supportsABI(_dragonflyABIChangeVersion) {
+		// 64-bit Dragonfly before the September 2019 ABI changes still requires
+		// 32-bit aligned access to network subsystem.
+		salign = 4
+	}
+	return (salen + salign - 1) & ^(salign - 1)
+}
diff --git a/libgo/go/syscall/sockcmsg_linux.go b/libgo/go/syscall/sockcmsg_linux.go
index 4cb9075..d97667c 100644
--- a/libgo/go/syscall/sockcmsg_linux.go
+++ b/libgo/go/syscall/sockcmsg_linux.go
@@ -17,7 +17,7 @@
 	h.Level = SOL_SOCKET
 	h.Type = SCM_CREDENTIALS
 	h.SetLen(CmsgLen(SizeofUcred))
-	*((*Ucred)(cmsgData(h))) = *ucred
+	*(*Ucred)(h.data(0)) = *ucred
 	return b
 }
 
diff --git a/libgo/go/syscall/sockcmsg_unix.go b/libgo/go/syscall/sockcmsg_unix.go
index dd74417..6530bea 100644
--- a/libgo/go/syscall/sockcmsg_unix.go
+++ b/libgo/go/syscall/sockcmsg_unix.go
@@ -9,35 +9,9 @@
 package syscall
 
 import (
-	"runtime"
 	"unsafe"
 )
 
-// Round the length of a raw sockaddr up to align it properly.
-func cmsgAlignOf(salen int) int {
-	salign := int(sizeofPtr)
-
-	switch runtime.GOOS {
-	case "aix":
-		// There is no alignment on AIX.
-		salign = 1
-	case "darwin", "dragonfly", "illumos", "solaris":
-		// NOTE: It seems like 64-bit Darwin, DragonFly BSD and
-		// Solaris kernels still require 32-bit aligned access to
-		// network subsystem.
-		if sizeofPtr == 8 {
-			salign = 4
-		}
-	case "netbsd", "openbsd":
-		// NetBSD and OpenBSD armv7 require 64-bit alignment.
-		if runtime.GOARCH == "arm" {
-			salign = 8
-		}
-	}
-
-	return (salen + salign - 1) & ^(salign - 1)
-}
-
 // CmsgLen returns the value to store in the Len field of the Cmsghdr
 // structure, taking into account any necessary alignment.
 func CmsgLen(datalen int) int {
@@ -50,8 +24,8 @@
 	return cmsgAlignOf(SizeofCmsghdr) + cmsgAlignOf(datalen)
 }
 
-func cmsgData(h *Cmsghdr) unsafe.Pointer {
-	return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)))
+func (h *Cmsghdr) data(offset uintptr) unsafe.Pointer {
+	return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)) + offset)
 }
 
 // SocketControlMessage represents a socket control message.
@@ -94,10 +68,8 @@
 	h.Level = SOL_SOCKET
 	h.Type = SCM_RIGHTS
 	h.SetLen(CmsgLen(datalen))
-	data := cmsgData(h)
-	for _, fd := range fds {
-		*(*int32)(data) = int32(fd)
-		data = unsafe.Pointer(uintptr(data) + 4)
+	for i, fd := range fds {
+		*(*int32)(h.data(4 * uintptr(i))) = int32(fd)
 	}
 	return b
 }
diff --git a/libgo/go/syscall/sockcmsg_unix_other.go b/libgo/go/syscall/sockcmsg_unix_other.go
new file mode 100644
index 0000000..65d9f18
--- /dev/null
+++ b/libgo/go/syscall/sockcmsg_unix_other.go
@@ -0,0 +1,38 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin freebsd linux netbsd openbsd solaris
+
+package syscall
+
+import (
+	"runtime"
+)
+
+// Round the length of a raw sockaddr up to align it properly.
+func cmsgAlignOf(salen int) int {
+	salign := int(sizeofPtr)
+
+	// dragonfly needs to check ABI version at runtime, see cmsgAlignOf in
+	// sockcmsg_dragonfly.go
+	switch runtime.GOOS {
+	case "aix":
+		// There is no alignment on AIX.
+		salign = 1
+	case "darwin", "illumos", "solaris":
+		// NOTE: It seems like 64-bit Darwin, Illumos and Solaris
+		// kernels still require 32-bit aligned access to network
+		// subsystem.
+		if sizeofPtr == 8 {
+			salign = 4
+		}
+	case "netbsd", "openbsd":
+		// NetBSD and OpenBSD armv7 require 64-bit alignment.
+		if runtime.GOARCH == "arm" {
+			salign = 8
+		}
+	}
+
+	return (salen + salign - 1) & ^(salign - 1)
+}
diff --git a/libgo/go/syscall/syscall.go b/libgo/go/syscall/syscall.go
index 9b74afe..4e1187b 100644
--- a/libgo/go/syscall/syscall.go
+++ b/libgo/go/syscall/syscall.go
@@ -28,7 +28,7 @@
 
 import "unsafe"
 
-//go:generate go run mksyscall_windows.go -systemdll -output zsyscall_windows.go syscall_windows.go security_windows.go
+//go:generate go run golang.org/x/sys/windows/mkwinsyscall -systemdll -output zsyscall_windows.go syscall_windows.go security_windows.go
 
 // StringByteSlice converts a string to a NUL-terminated []byte,
 // If s contains a NUL byte this function panics instead of
diff --git a/libgo/go/syscall/syscall_aix.go b/libgo/go/syscall/syscall_aix.go
index 231ff40..f4cac01 100644
--- a/libgo/go/syscall/syscall_aix.go
+++ b/libgo/go/syscall/syscall_aix.go
@@ -23,5 +23,9 @@
 }
 
 func direntNamlen(buf []byte) (uint64, bool) {
-	return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen))
+	reclen, ok := direntReclen(buf)
+	if !ok {
+		return 0, false
+	}
+	return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true
 }
diff --git a/libgo/go/syscall/syscall_dragonfly.go b/libgo/go/syscall/syscall_dragonfly.go
index 3e6617c..930bb46 100644
--- a/libgo/go/syscall/syscall_dragonfly.go
+++ b/libgo/go/syscall/syscall_dragonfly.go
@@ -4,7 +4,25 @@
 
 package syscall
 
-import "unsafe"
+import (
+	"sync"
+	"unsafe"
+)
+
+// See version list in https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/sys/param.h
+var (
+	osreldateOnce sync.Once
+	osreldate     uint32
+)
+
+// First __DragonFly_version after September 2019 ABI changes
+// http://lists.dragonflybsd.org/pipermail/users/2019-September/358280.html
+const _dragonflyABIChangeVersion = 500705
+
+func supportsABI(ver uint32) bool {
+	osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") })
+	return osreldate >= ver
+}
 
 func direntIno(buf []byte) (uint64, bool) {
 	return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno))
diff --git a/libgo/go/syscall/syscall_errno.go b/libgo/go/syscall/syscall_errno.go
index a339ae8..0d781de 100644
--- a/libgo/go/syscall/syscall_errno.go
+++ b/libgo/go/syscall/syscall_errno.go
@@ -13,6 +13,12 @@
 //	if errno != 0 {
 //		err = errno
 //	}
+//
+// Errno values can be tested against error values from the os package
+// using errors.Is. For example:
+//
+//	_, _, err := syscall.Syscall(...)
+//	if errors.Is(err, os.ErrNotExist) ...
 type Errno uintptr
 
 func (e Errno) Error() string {
@@ -32,7 +38,7 @@
 }
 
 func (e Errno) Temporary() bool {
-	return e == EINTR || e == EMFILE || e.Timeout()
+	return e == EINTR || e == EMFILE || e == ENFILE || e.Timeout()
 }
 
 func (e Errno) Timeout() bool {
diff --git a/libgo/go/syscall/syscall_freebsd_arm64.go b/libgo/go/syscall/syscall_freebsd_arm64.go
new file mode 100644
index 0000000..b561141
--- /dev/null
+++ b/libgo/go/syscall/syscall_freebsd_arm64.go
@@ -0,0 +1,33 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package syscall
+
+import "unsafe"
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: sec, Nsec: nsec}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: sec, Usec: usec}
+}
+
+func SetKevent(k *Kevent_t, fd, mode, flags int) {
+	k.Ident = uint64(fd)
+	k.Filter = int16(mode)
+	k.Flags = uint16(flags)
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint64(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}
diff --git a/libgo/go/syscall/syscall_js.go b/libgo/go/syscall/syscall_js.go
index 175fe47..dfb4a27 100644
--- a/libgo/go/syscall/syscall_js.go
+++ b/libgo/go/syscall/syscall_js.go
@@ -44,6 +44,12 @@
 //	if errno != 0 {
 //		err = errno
 //	}
+//
+// Errno values can be tested against error values from the os package
+// using errors.Is. For example:
+//
+//	_, _, err := syscall.Syscall(...)
+//	if errors.Is(err, os.ErrNotExist) ...
 type Errno uintptr
 
 func (e Errno) Error() string {
@@ -297,9 +303,10 @@
 	return jsProcess.Call("getegid").Int()
 }
 
-func Getgroups() ([]int, error) {
+func Getgroups() (groups []int, err error) {
+	defer recoverErr(&err)
 	array := jsProcess.Call("getgroups")
-	groups := make([]int, array.Length())
+	groups = make([]int, array.Length())
 	for i := range groups {
 		groups[i] = array.Index(i).Int()
 	}
diff --git a/libgo/go/syscall/syscall_linux_riscv64.go b/libgo/go/syscall/syscall_linux_riscv64.go
new file mode 100644
index 0000000..e9aab94
--- /dev/null
+++ b/libgo/go/syscall/syscall_linux_riscv64.go
@@ -0,0 +1,23 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package syscall
+
+import "unsafe"
+
+func (r *PtraceRegs) PC() uint64 { return r.Pc }
+
+func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc }
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint64(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint64(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint64(length)
+}
diff --git a/libgo/go/syscall/syscall_linux_test.go b/libgo/go/syscall/syscall_linux_test.go
index 2ad2365..97059c8 100644
--- a/libgo/go/syscall/syscall_linux_test.go
+++ b/libgo/go/syscall/syscall_linux_test.go
@@ -299,6 +299,14 @@
 		t.Skip("skipping on non-32bit architecture")
 	}
 
+	// See https://golang.org/issue/35422
+	// On MIPS, Linux returns whether the syscall had an error in a separate
+	// register (R7), not using a negative return value as on other
+	// architectures.
+	if runtime.GOARCH == "mips" || runtime.GOARCH == "mipsle" {
+		t.Skipf("skipping on %s", runtime.GOARCH)
+	}
+
 	if os.Getuid() != 0 {
 		t.Skip("skipping root only test")
 	}
@@ -367,7 +375,8 @@
 		if filesystemIsNoSUID(tmpBinary) {
 			t.Skip("skipping test when temp dir is mounted nosuid")
 		}
-		t.Errorf("expected %s, got %s", want, got)
+		// formatted so the values are aligned for easier comparison
+		t.Errorf("expected %s,\ngot      %s", want, got)
 	}
 }
 
diff --git a/libgo/go/syscall/syscall_test.go b/libgo/go/syscall/syscall_test.go
index 2a9d90e..5390f8a 100644
--- a/libgo/go/syscall/syscall_test.go
+++ b/libgo/go/syscall/syscall_test.go
@@ -62,7 +62,7 @@
 }
 
 func TestGettimeofday(t *testing.T) {
-	if runtime.GOOS == "nacl" || runtime.GOOS == "js" {
+	if runtime.GOOS == "js" {
 		t.Skip("not implemented on " + runtime.GOOS)
 	}
 	tv := &syscall.Timeval{}
diff --git a/libgo/go/syscall/syscall_unix.go b/libgo/go/syscall/syscall_unix.go
index 37999a2..16e4d48 100644
--- a/libgo/go/syscall/syscall_unix.go
+++ b/libgo/go/syscall/syscall_unix.go
@@ -165,7 +165,14 @@
 	if race.Enabled {
 		race.ReleaseMerge(unsafe.Pointer(&ioSync))
 	}
-	n, err = write(fd, p)
+	if faketime && (fd == 1 || fd == 2) {
+		n = faketimeWrite(fd, p)
+		if n < 0 {
+			n, err = 0, errnoErr(Errno(-n))
+		}
+	} else {
+		n, err = write(fd, p)
+	}
 	if race.Enabled && n > 0 {
 		race.ReadRange(unsafe.Pointer(&p[0]), n)
 	}
diff --git a/libgo/go/syscall/syscall_unix_test.go b/libgo/go/syscall/syscall_unix_test.go
index da259b9..b99e07d 100644
--- a/libgo/go/syscall/syscall_unix_test.go
+++ b/libgo/go/syscall/syscall_unix_test.go
@@ -386,3 +386,9 @@
 		t.Fatalf("SetsockoptString: did not fail")
 	}
 }
+
+func TestENFILETemporary(t *testing.T) {
+	if !syscall.ENFILE.Temporary() {
+		t.Error("ENFILE is not treated as a temporary error")
+	}
+}
diff --git a/libgo/go/syscall/tables_nacljs.go b/libgo/go/syscall/tables_js.go
similarity index 98%
rename from libgo/go/syscall/tables_nacljs.go
rename to libgo/go/syscall/tables_js.go
index 1c265f2..a7c4f8c 100644
--- a/libgo/go/syscall/tables_nacljs.go
+++ b/libgo/go/syscall/tables_js.go
@@ -2,13 +2,17 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl js,wasm
+// +build js,wasm
 
 package syscall
 
 import "runtime"
 
-// TODO: generate with runtime/mknacl.sh, allow override with IRT.
+// These were originally used by Nacl, then later also used by
+// js/wasm. Now that they're only used by js/wasm, these numbers are
+// just arbitrary.
+//
+// TODO: delete? replace with something meaningful?
 const (
 	sys_null                 = 1
 	sys_nameservice          = 2
diff --git a/libgo/go/syscall/time_fake.go b/libgo/go/syscall/time_fake.go
new file mode 100644
index 0000000..5dec57a
--- /dev/null
+++ b/libgo/go/syscall/time_fake.go
@@ -0,0 +1,26 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build faketime
+
+package syscall
+
+import "unsafe"
+
+const faketime = true
+
+// When faketime is enabled, we redirect writes to FDs 1 and 2 through
+// the runtime's write function, since that adds the framing that
+// reports the emulated time.
+
+//go:linkname runtimeWrite runtime.write
+func runtimeWrite(fd uintptr, p unsafe.Pointer, n int32) int32
+
+func faketimeWrite(fd int, p []byte) int {
+	var pp *byte
+	if len(p) > 0 {
+		pp = &p[0]
+	}
+	return int(runtimeWrite(uintptr(fd), unsafe.Pointer(pp), int32(len(p))))
+}
diff --git a/libgo/go/syscall/time_nofake.go b/libgo/go/syscall/time_nofake.go
new file mode 100644
index 0000000..c94cef8
--- /dev/null
+++ b/libgo/go/syscall/time_nofake.go
@@ -0,0 +1,14 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !faketime
+
+package syscall
+
+const faketime = false
+
+func faketimeWrite(fd int, p []byte) int {
+	// This should never be called since faketime is false.
+	panic("not implemented")
+}
diff --git a/libgo/go/syscall/timestruct.go b/libgo/go/syscall/timestruct.go
index e2b7704..bd0b3de 100644
--- a/libgo/go/syscall/timestruct.go
+++ b/libgo/go/syscall/timestruct.go
@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package syscall
 
 // TimespecToNsec converts a Timespec value into a number of
 // nanoseconds since the Unix epoch.
-func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
+func TimespecToNsec(ts Timespec) int64 { return ts.Nano() }
 
 // NsecToTimespec takes a number of nanoseconds since the Unix epoch
 // and returns the corresponding Timespec value.
@@ -24,7 +24,7 @@
 
 // TimevalToNsec converts a Timeval value into a number of nanoseconds
 // since the Unix epoch.
-func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 }
+func TimevalToNsec(tv Timeval) int64 { return tv.Nano() }
 
 // NsecToTimeval takes a number of nanoseconds since the Unix epoch
 // and returns the corresponding Timeval value.
diff --git a/libgo/go/testing/benchmark.go b/libgo/go/testing/benchmark.go
index 0e348be..0412772 100644
--- a/libgo/go/testing/benchmark.go
+++ b/libgo/go/testing/benchmark.go
@@ -69,8 +69,8 @@
 // Used for every benchmark for measuring memory.
 var memStats runtime.MemStats
 
-// An internal type but exported because it is cross-package; part of the implementation
-// of the "go test" command.
+// InternalBenchmark is an internal type but exported because it is cross-package;
+// it is part of the implementation of the "go test" command.
 type InternalBenchmark struct {
 	Name string
 	F    func(b *B)
@@ -342,7 +342,7 @@
 	b.extra[unit] = n
 }
 
-// The results of a benchmark run.
+// BenchmarkResult contains the results of a benchmark run.
 type BenchmarkResult struct {
 	N         int           // The number of iterations.
 	T         time.Duration // The total time taken.
@@ -488,8 +488,8 @@
 	extLen int // Maximum extension length.
 }
 
-// An internal function but exported because it is cross-package; part of the implementation
-// of the "go test" command.
+// RunBenchmarks is an internal function but exported because it is cross-package;
+// it is part of the implementation of the "go test" command.
 func RunBenchmarks(matchString func(pat, str string) (bool, error), benchmarks []InternalBenchmark) {
 	runBenchmarks("", matchString, benchmarks)
 }
@@ -545,7 +545,11 @@
 		for j := uint(0); j < *count; j++ {
 			runtime.GOMAXPROCS(procs)
 			benchName := benchmarkName(b.name, procs)
-			fmt.Fprintf(b.w, "%-*s\t", ctx.maxLen, benchName)
+
+			// If it's chatty, we've already printed this information.
+			if !b.chatty {
+				fmt.Fprintf(b.w, "%-*s\t", ctx.maxLen, benchName)
+			}
 			// Recompute the running time for all but the first iteration.
 			if i > 0 || j > 0 {
 				b = &B{
@@ -569,6 +573,9 @@
 				continue
 			}
 			results := r.String()
+			if b.chatty {
+				fmt.Fprintf(b.w, "%-*s\t", ctx.maxLen, benchName)
+			}
 			if *benchmarkMemory || b.showAllocResult {
 				results += "\t" + r.MemString()
 			}
@@ -627,6 +634,19 @@
 		// Only process sub-benchmarks, if any.
 		atomic.StoreInt32(&sub.hasSub, 1)
 	}
+
+	if b.chatty {
+		labelsOnce.Do(func() {
+			fmt.Printf("goos: %s\n", runtime.GOOS)
+			fmt.Printf("goarch: %s\n", runtime.GOARCH)
+			if b.importPath != "" {
+				fmt.Printf("pkg: %s\n", b.importPath)
+			}
+		})
+
+		fmt.Println(benchName)
+	}
+
 	if sub.run1() {
 		sub.run()
 	}
diff --git a/libgo/go/testing/example.go b/libgo/go/testing/example.go
index c122121..adc91d5 100644
--- a/libgo/go/testing/example.go
+++ b/libgo/go/testing/example.go
@@ -19,8 +19,8 @@
 	Unordered bool
 }
 
-// An internal function but exported because it is cross-package; part of the implementation
-// of the "go test" command.
+// RunExamples is an internal function but exported because it is cross-package;
+// it is part of the implementation of the "go test" command.
 func RunExamples(matchString func(pat, str string) (bool, error), examples []InternalExample) (ok bool) {
 	_, ok = runExamples(matchString, examples)
 	return ok
diff --git a/libgo/go/testing/iotest/logger_test.go b/libgo/go/testing/iotest/logger_test.go
new file mode 100644
index 0000000..c121bf4
--- /dev/null
+++ b/libgo/go/testing/iotest/logger_test.go
@@ -0,0 +1,160 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package iotest
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"log"
+	"testing"
+)
+
+type errWriter struct {
+	err error
+}
+
+func (w errWriter) Write([]byte) (int, error) {
+	return 0, w.err
+}
+
+func TestWriteLogger(t *testing.T) {
+	olw := log.Writer()
+	olf := log.Flags()
+	olp := log.Prefix()
+
+	// Revert the original log settings before we exit.
+	defer func() {
+		log.SetFlags(olf)
+		log.SetPrefix(olp)
+		log.SetOutput(olw)
+	}()
+
+	lOut := new(bytes.Buffer)
+	log.SetPrefix("lw: ")
+	log.SetOutput(lOut)
+	log.SetFlags(0)
+
+	lw := new(bytes.Buffer)
+	wl := NewWriteLogger("write:", lw)
+	if _, err := wl.Write([]byte("Hello, World!")); err != nil {
+		t.Fatalf("Unexpectedly failed to write: %v", err)
+	}
+
+	if g, w := lw.String(), "Hello, World!"; g != w {
+		t.Errorf("WriteLogger mismatch\n\tgot:  %q\n\twant: %q", g, w)
+	}
+	wantLogWithHex := fmt.Sprintf("lw: write: %x\n", "Hello, World!")
+	if g, w := lOut.String(), wantLogWithHex; g != w {
+		t.Errorf("WriteLogger mismatch\n\tgot:  %q\n\twant: %q", g, w)
+	}
+}
+
+func TestWriteLogger_errorOnWrite(t *testing.T) {
+	olw := log.Writer()
+	olf := log.Flags()
+	olp := log.Prefix()
+
+	// Revert the original log settings before we exit.
+	defer func() {
+		log.SetFlags(olf)
+		log.SetPrefix(olp)
+		log.SetOutput(olw)
+	}()
+
+	lOut := new(bytes.Buffer)
+	log.SetPrefix("lw: ")
+	log.SetOutput(lOut)
+	log.SetFlags(0)
+
+	lw := errWriter{err: errors.New("Write Error!")}
+	wl := NewWriteLogger("write:", lw)
+	if _, err := wl.Write([]byte("Hello, World!")); err == nil {
+		t.Fatalf("Unexpectedly succeeded to write: %v", err)
+	}
+
+	wantLogWithHex := fmt.Sprintf("lw: write: %x: %v\n", "", "Write Error!")
+	if g, w := lOut.String(), wantLogWithHex; g != w {
+		t.Errorf("WriteLogger mismatch\n\tgot:  %q\n\twant: %q", g, w)
+	}
+}
+
+type errReader struct {
+	err error
+}
+
+func (r errReader) Read([]byte) (int, error) {
+	return 0, r.err
+}
+
+func TestReadLogger(t *testing.T) {
+	olw := log.Writer()
+	olf := log.Flags()
+	olp := log.Prefix()
+
+	// Revert the original log settings before we exit.
+	defer func() {
+		log.SetFlags(olf)
+		log.SetPrefix(olp)
+		log.SetOutput(olw)
+	}()
+
+	lOut := new(bytes.Buffer)
+	log.SetPrefix("lr: ")
+	log.SetOutput(lOut)
+	log.SetFlags(0)
+
+	data := []byte("Hello, World!")
+	p := make([]byte, len(data))
+	lr := bytes.NewReader(data)
+	rl := NewReadLogger("read:", lr)
+
+	n, err := rl.Read(p)
+	if err != nil {
+		t.Fatalf("Unexpectedly failed to read: %v", err)
+	}
+
+	if g, w := p[:n], data; !bytes.Equal(g, w) {
+		t.Errorf("ReadLogger mismatch\n\tgot:  %q\n\twant: %q", g, w)
+	}
+
+	wantLogWithHex := fmt.Sprintf("lr: read: %x\n", "Hello, World!")
+	if g, w := lOut.String(), wantLogWithHex; g != w {
+		t.Errorf("ReadLogger mismatch\n\tgot:  %q\n\twant: %q", g, w)
+	}
+}
+
+func TestReadLogger_errorOnRead(t *testing.T) {
+	olw := log.Writer()
+	olf := log.Flags()
+	olp := log.Prefix()
+
+	// Revert the original log settings before we exit.
+	defer func() {
+		log.SetFlags(olf)
+		log.SetPrefix(olp)
+		log.SetOutput(olw)
+	}()
+
+	lOut := new(bytes.Buffer)
+	log.SetPrefix("lr: ")
+	log.SetOutput(lOut)
+	log.SetFlags(0)
+
+	data := []byte("Hello, World!")
+	p := make([]byte, len(data))
+
+	lr := errReader{err: errors.New("Read Error!")}
+	rl := NewReadLogger("read", lr)
+	n, err := rl.Read(p)
+	if err == nil {
+		t.Fatalf("Unexpectedly succeeded to read: %v", err)
+	}
+
+	wantLogWithHex := fmt.Sprintf("lr: read %x: %v\n", p[:n], "Read Error!")
+	if g, w := lOut.String(), wantLogWithHex; g != w {
+		t.Errorf("ReadLogger mismatch\n\tgot:  %q\n\twant: %q", g, w)
+	}
+}
diff --git a/libgo/go/testing/iotest/reader_test.go b/libgo/go/testing/iotest/reader_test.go
new file mode 100644
index 0000000..9397837
--- /dev/null
+++ b/libgo/go/testing/iotest/reader_test.go
@@ -0,0 +1,226 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package iotest
+
+import (
+	"bytes"
+	"io"
+	"testing"
+)
+
+func TestOneByteReader_nonEmptyReader(t *testing.T) {
+	msg := "Hello, World!"
+	buf := new(bytes.Buffer)
+	buf.WriteString(msg)
+
+	obr := OneByteReader(buf)
+	var b []byte
+	n, err := obr.Read(b)
+	if err != nil || n != 0 {
+		t.Errorf("Empty buffer read returned n=%d err=%v", n, err)
+	}
+
+	b = make([]byte, 3)
+	// Read from obr until EOF.
+	got := new(bytes.Buffer)
+	for i := 0; ; i++ {
+		n, err = obr.Read(b)
+		if err != nil {
+			break
+		}
+		if g, w := n, 1; g != w {
+			t.Errorf("Iteration #%d read %d bytes, want %d", i, g, w)
+		}
+		got.Write(b[:n])
+	}
+	if g, w := err, io.EOF; g != w {
+		t.Errorf("Unexpected error after reading all bytes\n\tGot:  %v\n\tWant: %v", g, w)
+	}
+	if g, w := got.String(), "Hello, World!"; g != w {
+		t.Errorf("Read mismatch\n\tGot:  %q\n\tWant: %q", g, w)
+	}
+}
+
+func TestOneByteReader_emptyReader(t *testing.T) {
+	r := new(bytes.Buffer)
+
+	obr := OneByteReader(r)
+	var b []byte
+	if n, err := obr.Read(b); err != nil || n != 0 {
+		t.Errorf("Empty buffer read returned n=%d err=%v", n, err)
+	}
+
+	b = make([]byte, 5)
+	n, err := obr.Read(b)
+	if g, w := err, io.EOF; g != w {
+		t.Errorf("Error mismatch\n\tGot:  %v\n\tWant: %v", g, w)
+	}
+	if g, w := n, 0; g != w {
+		t.Errorf("Unexpectedly read %d bytes, wanted %d", g, w)
+	}
+}
+
+func TestHalfReader_nonEmptyReader(t *testing.T) {
+	msg := "Hello, World!"
+	buf := new(bytes.Buffer)
+	buf.WriteString(msg)
+	// empty read buffer
+	hr := HalfReader(buf)
+	var b []byte
+	n, err := hr.Read(b)
+	if err != nil || n != 0 {
+		t.Errorf("Empty buffer read returned n=%d err=%v", n, err)
+	}
+	// non empty read buffer
+	b = make([]byte, 2)
+	got := new(bytes.Buffer)
+	for i := 0; ; i++ {
+		n, err = hr.Read(b)
+		if err != nil {
+			break
+		}
+		if g, w := n, 1; g != w {
+			t.Errorf("Iteration #%d read %d bytes, want %d", i, g, w)
+		}
+		got.Write(b[:n])
+	}
+	if g, w := err, io.EOF; g != w {
+		t.Errorf("Unexpected error after reading all bytes\n\tGot:  %v\n\tWant: %v", g, w)
+	}
+	if g, w := got.String(), "Hello, World!"; g != w {
+		t.Errorf("Read mismatch\n\tGot:  %q\n\tWant: %q", g, w)
+	}
+}
+
+func TestHalfReader_emptyReader(t *testing.T) {
+	r := new(bytes.Buffer)
+
+	hr := HalfReader(r)
+	var b []byte
+	if n, err := hr.Read(b); err != nil || n != 0 {
+		t.Errorf("Empty buffer read returned n=%d err=%v", n, err)
+	}
+
+	b = make([]byte, 5)
+	n, err := hr.Read(b)
+	if g, w := err, io.EOF; g != w {
+		t.Errorf("Error mismatch\n\tGot:  %v\n\tWant: %v", g, w)
+	}
+	if g, w := n, 0; g != w {
+		t.Errorf("Unexpectedly read %d bytes, wanted %d", g, w)
+	}
+}
+
+func TestTimeOutReader_nonEmptyReader(t *testing.T) {
+	msg := "Hello, World!"
+	buf := new(bytes.Buffer)
+	buf.WriteString(msg)
+	// empty read buffer
+	tor := TimeoutReader(buf)
+	var b []byte
+	n, err := tor.Read(b)
+	if err != nil || n != 0 {
+		t.Errorf("Empty buffer read returned n=%d err=%v", n, err)
+	}
+	// Second call should timeout
+	n, err = tor.Read(b)
+	if g, w := err, ErrTimeout; g != w {
+		t.Errorf("Error mismatch\n\tGot:  %v\n\tWant: %v", g, w)
+	}
+	if g, w := n, 0; g != w {
+		t.Errorf("Unexpectedly read %d bytes, wanted %d", g, w)
+	}
+	// non empty read buffer
+	tor2 := TimeoutReader(buf)
+	b = make([]byte, 3)
+	if n, err := tor2.Read(b); err != nil || n == 0 {
+		t.Errorf("Empty buffer read returned n=%d err=%v", n, err)
+	}
+	// Second call should timeout
+	n, err = tor2.Read(b)
+	if g, w := err, ErrTimeout; g != w {
+		t.Errorf("Error mismatch\n\tGot:  %v\n\tWant: %v", g, w)
+	}
+	if g, w := n, 0; g != w {
+		t.Errorf("Unexpectedly read %d bytes, wanted %d", g, w)
+	}
+}
+
+func TestTimeOutReader_emptyReader(t *testing.T) {
+	r := new(bytes.Buffer)
+	// empty read buffer
+	tor := TimeoutReader(r)
+	var b []byte
+	if n, err := tor.Read(b); err != nil || n != 0 {
+		t.Errorf("Empty buffer read returned n=%d err=%v", n, err)
+	}
+	// Second call should timeout
+	n, err := tor.Read(b)
+	if g, w := err, ErrTimeout; g != w {
+		t.Errorf("Error mismatch\n\tGot:  %v\n\tWant: %v", g, w)
+	}
+	if g, w := n, 0; g != w {
+		t.Errorf("Unexpectedly read %d bytes, wanted %d", g, w)
+	}
+	// non empty read buffer
+	tor2 := TimeoutReader(r)
+	b = make([]byte, 5)
+	if n, err := tor2.Read(b); err != io.EOF || n != 0 {
+		t.Errorf("Empty buffer read returned n=%d err=%v", n, err)
+	}
+	// Second call should timeout
+	n, err = tor2.Read(b)
+	if g, w := err, ErrTimeout; g != w {
+		t.Errorf("Error mismatch\n\tGot:  %v\n\tWant: %v", g, w)
+	}
+	if g, w := n, 0; g != w {
+		t.Errorf("Unexpectedly read %d bytes, wanted %d", g, w)
+	}
+}
+
+func TestDataErrReader_nonEmptyReader(t *testing.T) {
+	msg := "Hello, World!"
+	buf := new(bytes.Buffer)
+	buf.WriteString(msg)
+
+	der := DataErrReader(buf)
+
+	b := make([]byte, 3)
+	got := new(bytes.Buffer)
+	var n int
+	var err error
+	for {
+		n, err = der.Read(b)
+		got.Write(b[:n])
+		if err != nil {
+			break
+		}
+	}
+	if err != io.EOF || n == 0 {
+		t.Errorf("Last Read returned n=%d err=%v", n, err)
+	}
+	if g, w := got.String(), "Hello, World!"; g != w {
+		t.Errorf("Read mismatch\n\tGot:  %q\n\tWant: %q", g, w)
+	}
+}
+
+func TestDataErrReader_emptyReader(t *testing.T) {
+	r := new(bytes.Buffer)
+
+	der := DataErrReader(r)
+	var b []byte
+	if n, err := der.Read(b); err != io.EOF || n != 0 {
+		t.Errorf("Empty buffer read returned n=%d err=%v", n, err)
+	}
+
+	b = make([]byte, 5)
+	n, err := der.Read(b)
+	if g, w := err, io.EOF; g != w {
+		t.Errorf("Error mismatch\n\tGot:  %v\n\tWant: %v", g, w)
+	}
+	if g, w := n, 0; g != w {
+		t.Errorf("Unexpectedly read %d bytes, wanted %d", g, w)
+	}
+}
diff --git a/libgo/go/testing/iotest/writer_test.go b/libgo/go/testing/iotest/writer_test.go
new file mode 100644
index 0000000..5aaa77c
--- /dev/null
+++ b/libgo/go/testing/iotest/writer_test.go
@@ -0,0 +1,39 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package iotest
+
+import (
+	"bytes"
+	"testing"
+)
+
+var truncateWriterTests = []struct {
+	in    string
+	want  string
+	trunc int64
+	n     int
+}{
+	{"hello", "", -1, 5},
+	{"world", "", 0, 5},
+	{"abcde", "abc", 3, 5},
+	{"edcba", "edcba", 7, 5},
+}
+
+func TestTruncateWriter(t *testing.T) {
+	for _, tt := range truncateWriterTests {
+		buf := new(bytes.Buffer)
+		tw := TruncateWriter(buf, tt.trunc)
+		n, err := tw.Write([]byte(tt.in))
+		if err != nil {
+			t.Errorf("Unexpected error %v for\n\t%+v", err, tt)
+		}
+		if g, w := buf.String(), tt.want; g != w {
+			t.Errorf("got %q, expected %q", g, w)
+		}
+		if g, w := n, tt.n; g != w {
+			t.Errorf("read %d bytes, but expected to have read %d bytes for\n\t%+v", g, w, tt)
+		}
+	}
+}
diff --git a/libgo/go/testing/panic_test.go b/libgo/go/testing/panic_test.go
new file mode 100644
index 0000000..3491510
--- /dev/null
+++ b/libgo/go/testing/panic_test.go
@@ -0,0 +1,83 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package testing_test
+
+import (
+	"flag"
+	"fmt"
+	"internal/testenv"
+	"os"
+	"os/exec"
+	"regexp"
+	"strings"
+	"testing"
+)
+
+var testPanicTest = flag.String("test_panic_test", "", "TestPanic: indicates which test should panic")
+
+func TestPanic(t *testing.T) {
+	testenv.MustHaveExec(t)
+
+	testCases := []struct {
+		desc  string
+		flags []string
+		want  string
+	}{{
+		desc:  "root test panics",
+		flags: []string{"-test_panic_test=TestPanicHelper"},
+		want: `
+--- FAIL: TestPanicHelper (N.NNs)
+    panic_test.go:NNN: TestPanicHelper
+`,
+	}, {
+		desc:  "subtest panics",
+		flags: []string{"-test_panic_test=TestPanicHelper/1"},
+		want: `
+--- FAIL: TestPanicHelper (N.NNs)
+    panic_test.go:NNN: TestPanicHelper
+    --- FAIL: TestPanicHelper/1 (N.NNs)
+        panic_test.go:NNN: TestPanicHelper/1
+`,
+	}}
+	for _, tc := range testCases {
+		t.Run(tc.desc, func(t *testing.T) {
+			cmd := exec.Command(os.Args[0], "-test.run=TestPanicHelper")
+			cmd.Args = append(cmd.Args, tc.flags...)
+			cmd.Env = append(os.Environ(), "GO_WANT_HELPER_PROCESS=1")
+			b, _ := cmd.CombinedOutput()
+			got := string(b)
+			want := strings.TrimSpace(tc.want)
+			re := makeRegexp(want)
+			if ok, err := regexp.MatchString(re, got); !ok || err != nil {
+				t.Errorf("output:\ngot:\n%s\nwant:\n%s", got, want)
+			}
+		})
+	}
+}
+
+func makeRegexp(s string) string {
+	s = regexp.QuoteMeta(s)
+	s = strings.ReplaceAll(s, ":NNN:", `:\d+:`)
+	s = strings.ReplaceAll(s, "N\\.NNs", `\d*\.\d*s`)
+	return s
+}
+
+func TestPanicHelper(t *testing.T) {
+	if os.Getenv("GO_WANT_HELPER_PROCESS") != "1" {
+		return
+	}
+	t.Log(t.Name())
+	if t.Name() == *testPanicTest {
+		panic("panic")
+	}
+	for i := 0; i < 3; i++ {
+		t.Run(fmt.Sprintf("%v", i), func(t *testing.T) {
+			t.Log(t.Name())
+			if t.Name() == *testPanicTest {
+				panic("panic")
+			}
+		})
+	}
+}
diff --git a/libgo/go/testing/sub_test.go b/libgo/go/testing/sub_test.go
index cc5dd2f..3f0f71f 100644
--- a/libgo/go/testing/sub_test.go
+++ b/libgo/go/testing/sub_test.go
@@ -7,6 +7,7 @@
 import (
 	"bytes"
 	"fmt"
+	"reflect"
 	"regexp"
 	"runtime"
 	"strings"
@@ -434,6 +435,31 @@
 			<-ch
 			t.Errorf("error")
 		},
+	}, {
+		// A chatty test should always log with fmt.Print, even if the
+		// parent test has completed.
+		// TODO(deklerk) Capture the log of fmt.Print and assert that the
+		// subtest message is not lost.
+		desc:   "log in finished sub test with chatty",
+		ok:     false,
+		chatty: true,
+		output: `
+		--- FAIL: log in finished sub test with chatty (N.NNs)`,
+		maxPar: 1,
+		f: func(t *T) {
+			ch := make(chan bool)
+			t.Run("sub", func(t2 *T) {
+				go func() {
+					<-ch
+					t2.Log("message1")
+					ch <- true
+				}()
+			})
+			t.Log("message2")
+			ch <- true
+			<-ch
+			t.Errorf("error")
+		},
 	}}
 	for _, tc := range testCases {
 		ctx := newTestContext(tc.maxPar, newMatcher(regexp.MatchString, "", ""))
@@ -522,13 +548,6 @@
 		output: "--- SKIP: root",
 		f:      func(b *B) { b.SkipNow() },
 	}, {
-		desc:   "skipping with message, chatty",
-		chatty: true,
-		output: `
---- SKIP: root
-    sub_test.go:NNN: skipping`,
-		f: func(b *B) { b.Skip("skipping") },
-	}, {
 		desc:   "chatty with recursion",
 		chatty: true,
 		f: func(b *B) {
@@ -772,3 +791,67 @@
 		t.Errorf("want >5ms; got %v", time.Duration(res.NsPerOp()))
 	}
 }
+
+func TestCleanup(t *T) {
+	var cleanups []int
+	t.Run("test", func(t *T) {
+		t.Cleanup(func() { cleanups = append(cleanups, 1) })
+		t.Cleanup(func() { cleanups = append(cleanups, 2) })
+	})
+	if got, want := cleanups, []int{2, 1}; !reflect.DeepEqual(got, want) {
+		t.Errorf("unexpected cleanup record; got %v want %v", got, want)
+	}
+}
+
+func TestConcurrentCleanup(t *T) {
+	cleanups := 0
+	t.Run("test", func(t *T) {
+		done := make(chan struct{})
+		for i := 0; i < 2; i++ {
+			i := i
+			go func() {
+				t.Cleanup(func() {
+					cleanups |= 1 << i
+				})
+				done <- struct{}{}
+			}()
+		}
+		<-done
+		<-done
+	})
+	if cleanups != 1|2 {
+		t.Errorf("unexpected cleanup; got %d want 3", cleanups)
+	}
+}
+
+func TestCleanupCalledEvenAfterGoexit(t *T) {
+	cleanups := 0
+	t.Run("test", func(t *T) {
+		t.Cleanup(func() {
+			cleanups++
+		})
+		t.Cleanup(func() {
+			runtime.Goexit()
+		})
+	})
+	if cleanups != 1 {
+		t.Errorf("unexpected cleanup count; got %d want 1", cleanups)
+	}
+}
+
+func TestRunCleanup(t *T) {
+	outerCleanup := 0
+	innerCleanup := 0
+	t.Run("test", func(t *T) {
+		t.Cleanup(func() { outerCleanup++ })
+		t.Run("x", func(t *T) {
+			t.Cleanup(func() { innerCleanup++ })
+		})
+	})
+	if innerCleanup != 1 {
+		t.Errorf("unexpected inner cleanup count; got %d want 1", innerCleanup)
+	}
+	if outerCleanup != 1 {
+		t.Errorf("unexpected outer cleanup count; got %d want 0", outerCleanup)
+	}
+}
diff --git a/libgo/go/testing/testing.go b/libgo/go/testing/testing.go
index 6ab9b79..e05314e 100644
--- a/libgo/go/testing/testing.go
+++ b/libgo/go/testing/testing.go
@@ -99,7 +99,7 @@
 // line order:
 //
 //     func ExamplePerm() {
-//         for _, value := range Perm(4) {
+//         for _, value := range Perm(5) {
 //             fmt.Println(value)
 //         }
 //         // Unordered output: 4
@@ -344,6 +344,7 @@
 	skipped bool                // Test of benchmark has been skipped.
 	done    bool                // Test is finished and all subtests have completed.
 	helpers map[string]struct{} // functions to be skipped when writing file/line info
+	cleanup func()              // optional function to be called at the end of the test
 
 	chatty     bool   // A copy of the chatty flag.
 	finished   bool   // Test function has completed.
@@ -479,6 +480,9 @@
 	buf := new(strings.Builder)
 	// Every line is indented at least 4 spaces.
 	buf.WriteString("    ")
+	if c.chatty {
+		fmt.Fprintf(buf, "%s: ", c.name)
+	}
 	fmt.Fprintf(buf, "%s:%d: ", file, line)
 	lines := strings.Split(s, "\n")
 	if l := len(lines); l > 1 && lines[l-1] == "" {
@@ -540,6 +544,7 @@
 
 // TB is the interface common to T and B.
 type TB interface {
+	Cleanup(func())
 	Error(args ...interface{})
 	Errorf(format string, args ...interface{})
 	Fail()
@@ -547,6 +552,7 @@
 	Failed() bool
 	Fatal(args ...interface{})
 	Fatalf(format string, args ...interface{})
+	Helper()
 	Log(args ...interface{})
 	Logf(format string, args ...interface{})
 	Name() string
@@ -554,7 +560,6 @@
 	SkipNow()
 	Skipf(format string, args ...interface{})
 	Skipped() bool
-	Helper()
 
 	// A private method to prevent users implementing the
 	// interface and so future additions to it will not
@@ -662,9 +667,7 @@
 func (c *common) logDepth(s string, depth int) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
-	if !c.done {
-		c.output = append(c.output, c.decorate(s, depth+1)...)
-	} else {
+	if c.done {
 		// This test has already finished. Try and log this message
 		// with our parent. If we don't have a parent, panic.
 		for parent := c.parent; parent != nil; parent = parent.parent {
@@ -676,9 +679,21 @@
 			}
 		}
 		panic("Log in goroutine after " + c.name + " has completed")
+	} else {
+		if c.chatty {
+			fmt.Print(c.decorate(s, depth+1))
+			return
+		}
+		c.output = append(c.output, c.decorate(s, depth+1)...)
 	}
 }
 
+// This is needed for gccgo to get the tests to pass, because
+// runtime.Callers doesn't correctly handle skips that land in the
+// middle of a sequence of inlined functions.
+// This shouldn't make any difference for normal use.
+//go:noinline
+
 // Log formats its arguments using default formatting, analogous to Println,
 // and records the text in the error log. For tests, the text will be printed only if
 // the test fails or the -test.v flag is set. For benchmarks, the text is always
@@ -692,30 +707,60 @@
 // depend on the value of the -test.v flag.
 func (c *common) Logf(format string, args ...interface{}) { c.log(fmt.Sprintf(format, args...)) }
 
+// This is needed for gccgo to get the tests to pass, because
+// runtime.Callers doesn't correctly handle skips that land in the
+// middle of a sequence of inlined functions.
+// This shouldn't make any difference for normal use.
+//go:noinline
+
 // Error is equivalent to Log followed by Fail.
 func (c *common) Error(args ...interface{}) {
 	c.log(fmt.Sprintln(args...))
 	c.Fail()
 }
 
+// This is needed for gccgo to get the tests to pass, because
+// runtime.Callers doesn't correctly handle skips that land in the
+// middle of a sequence of inlined functions.
+// This shouldn't make any difference for normal use.
+//go:noinline
+
 // Errorf is equivalent to Logf followed by Fail.
 func (c *common) Errorf(format string, args ...interface{}) {
 	c.log(fmt.Sprintf(format, args...))
 	c.Fail()
 }
 
+// This is needed for gccgo to get the tests to pass, because
+// runtime.Callers doesn't correctly handle skips that land in the
+// middle of a sequence of inlined functions.
+// This shouldn't make any difference for normal use.
+//go:noinline
+
 // Fatal is equivalent to Log followed by FailNow.
 func (c *common) Fatal(args ...interface{}) {
 	c.log(fmt.Sprintln(args...))
 	c.FailNow()
 }
 
+// This is needed for gccgo to get the tests to pass, because
+// runtime.Callers doesn't correctly handle skips that land in the
+// middle of a sequence of inlined functions.
+// This shouldn't make any difference for normal use.
+//go:noinline
+
 // Fatalf is equivalent to Logf followed by FailNow.
 func (c *common) Fatalf(format string, args ...interface{}) {
 	c.log(fmt.Sprintf(format, args...))
 	c.FailNow()
 }
 
+// This is needed for gccgo to get the tests to pass, because
+// runtime.Callers doesn't correctly handle skips that land in the
+// middle of a sequence of inlined functions.
+// This shouldn't make any difference for normal use.
+//go:noinline
+
 // Skip is equivalent to Log followed by SkipNow.
 func (c *common) Skip(args ...interface{}) {
 	c.log(fmt.Sprintln(args...))
@@ -767,11 +812,37 @@
 	c.helpers[callerName(1)] = struct{}{}
 }
 
+// Cleanup registers a function to be called when the test finishes.
+// Cleanup functions will be called in last added, first called
+// order.
+func (c *common) Cleanup(f func()) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	oldCleanup := c.cleanup
+	c.cleanup = func() {
+		if oldCleanup != nil {
+			defer oldCleanup()
+		}
+		f()
+	}
+}
+
+// runCleanup is called at the end of the test.
+func (c *common) runCleanup() {
+	c.mu.Lock()
+	cleanup := c.cleanup
+	c.cleanup = nil
+	c.mu.Unlock()
+	if cleanup != nil {
+		cleanup()
+	}
+}
+
 // callerName gives the function name (qualified with a package path)
 // for the caller after skip frames (where 0 means the current function).
 func callerName(skip int) string {
 	// Make room for the skip PC.
-	var pc [1]uintptr
+	var pc [2]uintptr
 	n := runtime.Callers(skip+2, pc[:]) // skip + runtime.Callers + callerName
 	if n == 0 {
 		panic("testing: zero callers found")
@@ -828,8 +899,8 @@
 	t.raceErrors += -race.Errors()
 }
 
-// An internal type but exported because it is cross-package; part of the implementation
-// of the "go test" command.
+// InternalTest is an internal type but exported because it is cross-package;
+// it is part of the implementation of the "go test" command.
 type InternalTest struct {
 	Name string
 	F    func(*T)
@@ -853,7 +924,6 @@
 			t.Errorf("race detected during execution of test")
 		}
 
-		t.duration += time.Since(t.start)
 		// If the test panicked, print any test output before dying.
 		err := recover()
 		signal := true
@@ -870,10 +940,20 @@
 		}
 		if err != nil {
 			t.Fail()
-			t.report()
+			// Flush the output log up to the root before dying.
+			t.mu.Lock()
+			root := &t.common
+			for ; root.parent != nil; root = root.parent {
+				root.duration += time.Since(root.start)
+				fmt.Fprintf(root.parent.w, "--- FAIL: %s (%s)\n", root.name, fmtDuration(root.duration))
+				root.parent.mu.Lock()
+				io.Copy(root.parent.w, bytes.NewReader(root.output))
+			}
 			panic(err)
 		}
 
+		t.duration += time.Since(t.start)
+
 		if len(t.sub) > 0 {
 			// Run parallel subtests.
 			// Decrease the running count for this test.
@@ -903,6 +983,7 @@
 		}
 		t.signal <- signal
 	}()
+	defer t.runCleanup()
 
 	t.start = time.Now()
 	t.raceErrors = -race.Errors()
@@ -1169,8 +1250,8 @@
 	}
 }
 
-// An internal function but exported because it is cross-package; part of the implementation
-// of the "go test" command.
+// RunTests is an internal function but exported because it is cross-package;
+// it is part of the implementation of the "go test" command.
 func RunTests(matchString func(pat, str string) (bool, error), tests []InternalTest) (ok bool) {
 	ran, ok := runTests(matchString, tests)
 	if !ran && !haveExamples {
diff --git a/libgo/go/text/template/doc.go b/libgo/go/text/template/doc.go
index dbffaa4..4b0efd2 100644
--- a/libgo/go/text/template/doc.go
+++ b/libgo/go/text/template/doc.go
@@ -102,8 +102,8 @@
 		If the value of the pipeline has length zero, nothing is output;
 		otherwise, dot is set to the successive elements of the array,
 		slice, or map and T1 is executed. If the value is a map and the
-		keys are of basic type with a defined order ("comparable"), the
-		elements will be visited in sorted key order.
+		keys are of basic type with a defined order, the elements will be
+		visited in sorted key order.
 
 	{{range pipeline}} T1 {{else}} T0 {{end}}
 		The value of the pipeline must be an array, slice, map, or channel.
@@ -385,14 +385,12 @@
 (Unlike with || in Go, however, eq is a function call and all the
 arguments will be evaluated.)
 
-The comparison functions work on basic types only (or named basic
-types, such as "type Celsius float32"). They implement the Go rules
-for comparison of values, except that size and exact type are
-ignored, so any integer value, signed or unsigned, may be compared
-with any other integer value. (The arithmetic value is compared,
-not the bit pattern, so all negative integers are less than all
-unsigned integers.) However, as usual, one may not compare an int
-with a float32 and so on.
+The comparison functions work on any values whose type Go defines as
+comparable. For basic types such as integers, the rules are relaxed:
+size and exact type are ignored, so any integer value, signed or unsigned,
+may be compared with any other integer value. (The arithmetic value is compared,
+not the bit pattern, so all negative integers are less than all unsigned integers.)
+However, as usual, one may not compare an int with a float32 and so on.
 
 Associated templates
 
diff --git a/libgo/go/text/template/exec.go b/libgo/go/text/template/exec.go
index 6d2e5ec..df2c445 100644
--- a/libgo/go/text/template/exec.go
+++ b/libgo/go/text/template/exec.go
@@ -5,7 +5,6 @@
 package template
 
 import (
-	"bytes"
 	"fmt"
 	"internal/fmtsort"
 	"io"
@@ -232,21 +231,19 @@
 	if t.common == nil {
 		return ""
 	}
-	var b bytes.Buffer
+	var b strings.Builder
 	for name, tmpl := range t.tmpl {
 		if tmpl.Tree == nil || tmpl.Root == nil {
 			continue
 		}
-		if b.Len() > 0 {
+		if b.Len() == 0 {
+			b.WriteString("; defined templates are: ")
+		} else {
 			b.WriteString(", ")
 		}
 		fmt.Fprintf(&b, "%q", name)
 	}
-	var s string
-	if b.Len() > 0 {
-		s = "; defined templates are: " + b.String()
-	}
-	return s
+	return b.String()
 }
 
 // Walk functions step through the major pieces of the template structure,
@@ -466,7 +463,8 @@
 		// Must be a function.
 		return s.evalFunction(dot, n, cmd, cmd.Args, final)
 	case *parse.PipeNode:
-		// Parenthesized pipeline. The arguments are all inside the pipeline; final is ignored.
+		// Parenthesized pipeline. The arguments are all inside the pipeline; final must be absent.
+		s.notAFunction(cmd.Args, final)
 		return s.evalPipeline(dot, n)
 	case *parse.VariableNode:
 		return s.evalVariableNode(dot, n, cmd.Args, final)
@@ -501,20 +499,29 @@
 	switch {
 	case constant.IsComplex:
 		return reflect.ValueOf(constant.Complex128) // incontrovertible.
-	case constant.IsFloat && !isHexInt(constant.Text) && strings.ContainsAny(constant.Text, ".eEpP"):
+
+	case constant.IsFloat &&
+		!isHexInt(constant.Text) && !isRuneInt(constant.Text) &&
+		strings.ContainsAny(constant.Text, ".eEpP"):
 		return reflect.ValueOf(constant.Float64)
+
 	case constant.IsInt:
 		n := int(constant.Int64)
 		if int64(n) != constant.Int64 {
 			s.errorf("%s overflows int", constant.Text)
 		}
 		return reflect.ValueOf(n)
+
 	case constant.IsUint:
 		s.errorf("%s overflows int", constant.Text)
 	}
 	return zero
 }
 
+func isRuneInt(s string) bool {
+	return len(s) > 0 && s[0] == '\''
+}
+
 func isHexInt(s string) bool {
 	return len(s) > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X') && !strings.ContainsAny(s, "pP")
 }
diff --git a/libgo/go/text/template/exec_test.go b/libgo/go/text/template/exec_test.go
index a7d3f39..c64b835 100644
--- a/libgo/go/text/template/exec_test.go
+++ b/libgo/go/text/template/exec_test.go
@@ -352,6 +352,12 @@
 	{"field on interface", "{{.foo}}", "<no value>", nil, true},
 	{"field on parenthesized interface", "{{(.).foo}}", "<no value>", nil, true},
 
+	// Issue 31810: Parenthesized first element of pipeline with arguments.
+	// See also TestIssue31810.
+	{"unparenthesized non-function", "{{1 2}}", "", nil, false},
+	{"parenthesized non-function", "{{(1) 2}}", "", nil, false},
+	{"parenthesized non-function with no args", "{{(1)}}", "1", nil, true}, // This is fine.
+
 	// Method calls.
 	{".Method0", "-{{.Method0}}-", "-M0-", tVal, true},
 	{".Method1(1234)", "-{{.Method1 1234}}-", "-1234-", tVal, true},
@@ -663,6 +669,12 @@
 	{"bug17c", "{{len .NonEmptyInterfacePtS}}", "2", tVal, true},
 	{"bug17d", "{{index .NonEmptyInterfacePtS 0}}", "a", tVal, true},
 	{"bug17e", "{{range .NonEmptyInterfacePtS}}-{{.}}-{{end}}", "-a--b-", tVal, true},
+
+	// More variadic function corner cases. Some runes would get evaluated
+	// as constant floats instead of ints. Issue 34483.
+	{"bug18a", "{{eq . '.'}}", "true", '.', true},
+	{"bug18b", "{{eq . 'e'}}", "true", 'e', true},
+	{"bug18c", "{{eq . 'P'}}", "true", 'P', true},
 }
 
 func zeroArgs() string {
@@ -897,6 +909,8 @@
 		{`Yukihiro says "今日は世界"`, `Yukihiro says \"今日は世界\"`},
 		{"unprintable \uFDFF", `unprintable \uFDFF`},
 		{`<html>`, `\x3Chtml\x3E`},
+		{`no = in attributes`, `no \x3D in attributes`},
+		{`&#x27; does not become HTML entity`, `\x26#x27; does not become HTML entity`},
 	}
 	for _, tc := range testCases {
 		s := JSEscapeString(tc.in)
@@ -1156,19 +1170,41 @@
 	{"ge .Uthree .NegOne", "true", true},
 	{"eq (index `x` 0) 'x'", "true", true}, // The example that triggered this rule.
 	{"eq (index `x` 0) 'y'", "false", true},
+	{"eq .V1 .V2", "true", true},
+	{"eq .Ptr .Ptr", "true", true},
+	{"eq .Ptr .NilPtr", "false", true},
+	{"eq .NilPtr .NilPtr", "true", true},
+	{"eq .Iface1 .Iface1", "true", true},
+	{"eq .Iface1 .Iface2", "false", true},
+	{"eq .Iface2 .Iface2", "true", true},
 	// Errors
-	{"eq `xy` 1", "", false},    // Different types.
-	{"eq 2 2.0", "", false},     // Different types.
-	{"lt true true", "", false}, // Unordered types.
-	{"lt 1+0i 1+0i", "", false}, // Unordered types.
+	{"eq `xy` 1", "", false},       // Different types.
+	{"eq 2 2.0", "", false},        // Different types.
+	{"lt true true", "", false},    // Unordered types.
+	{"lt 1+0i 1+0i", "", false},    // Unordered types.
+	{"eq .Ptr 1", "", false},       // Incompatible types.
+	{"eq .Ptr .NegOne", "", false}, // Incompatible types.
+	{"eq .Map .Map", "", false},    // Uncomparable types.
+	{"eq .Map .V1", "", false},     // Uncomparable types.
 }
 
 func TestComparison(t *testing.T) {
 	b := new(bytes.Buffer)
 	var cmpStruct = struct {
-		Uthree, Ufour uint
-		NegOne, Three int
-	}{3, 4, -1, 3}
+		Uthree, Ufour  uint
+		NegOne, Three  int
+		Ptr, NilPtr    *int
+		Map            map[int]int
+		V1, V2         V
+		Iface1, Iface2 fmt.Stringer
+	}{
+		Uthree: 3,
+		Ufour:  4,
+		NegOne: -1,
+		Three:  3,
+		Ptr:    new(int),
+		Iface1: b,
+	}
 	for _, test := range cmpTests {
 		text := fmt.Sprintf("{{if %s}}true{{else}}false{{end}}", test.expr)
 		tmpl, err := New("empty").Parse(text)
@@ -1620,3 +1656,41 @@
 		}
 	}
 }
+
+// Issue 31810. Check that a parenthesized first argument behaves properly.
+func TestIssue31810(t *testing.T) {
+	// A simple value with no arguments is fine.
+	var b bytes.Buffer
+	const text = "{{ (.)  }}"
+	tmpl, err := New("").Parse(text)
+	if err != nil {
+		t.Error(err)
+	}
+	err = tmpl.Execute(&b, "result")
+	if err != nil {
+		t.Error(err)
+	}
+	if b.String() != "result" {
+		t.Errorf("%s got %q, expected %q", text, b.String(), "result")
+	}
+
+	// Even a plain function fails - need to use call.
+	f := func() string { return "result" }
+	b.Reset()
+	err = tmpl.Execute(&b, f)
+	if err == nil {
+		t.Error("expected error with no call, got none")
+	}
+
+	// Works if the function is explicitly called.
+	const textCall = "{{ (call .)  }}"
+	tmpl, err = New("").Parse(textCall)
+	b.Reset()
+	err = tmpl.Execute(&b, f)
+	if err != nil {
+		t.Error(err)
+	}
+	if b.String() != "result" {
+		t.Errorf("%s got %q, expected %q", textCall, b.String(), "result")
+	}
+}
diff --git a/libgo/go/text/template/funcs.go b/libgo/go/text/template/funcs.go
index 248dbcf..0568c79 100644
--- a/libgo/go/text/template/funcs.go
+++ b/libgo/go/text/template/funcs.go
@@ -441,19 +441,18 @@
 // eq evaluates the comparison a == b || a == c || ...
 func eq(arg1 reflect.Value, arg2 ...reflect.Value) (bool, error) {
 	v1 := indirectInterface(arg1)
-	k1, err := basicKind(v1)
-	if err != nil {
-		return false, err
+	if v1 != zero {
+		if t1 := v1.Type(); !t1.Comparable() {
+			return false, fmt.Errorf("uncomparable type %s: %v", t1, v1)
+		}
 	}
 	if len(arg2) == 0 {
 		return false, errNoComparison
 	}
+	k1, _ := basicKind(v1)
 	for _, arg := range arg2 {
 		v2 := indirectInterface(arg)
-		k2, err := basicKind(v2)
-		if err != nil {
-			return false, err
-		}
+		k2, _ := basicKind(v2)
 		truth := false
 		if k1 != k2 {
 			// Special case: Can compare integer values regardless of type's sign.
@@ -480,7 +479,14 @@
 			case uintKind:
 				truth = v1.Uint() == v2.Uint()
 			default:
-				panic("invalid kind")
+				if v2 == zero {
+					truth = v1 == v2
+				} else {
+					if t2 := v2.Type(); !t2.Comparable() {
+						return false, fmt.Errorf("uncomparable type %s: %v", t2, v2)
+					}
+					truth = v1.Interface() == v2.Interface()
+				}
 			}
 		}
 		if truth {
@@ -636,6 +642,8 @@
 	jsQuot      = []byte(`\"`)
 	jsLt        = []byte(`\x3C`)
 	jsGt        = []byte(`\x3E`)
+	jsAmp       = []byte(`\x26`)
+	jsEq        = []byte(`\x3D`)
 )
 
 // JSEscape writes to w the escaped JavaScript equivalent of the plain text data b.
@@ -664,6 +672,10 @@
 				w.Write(jsLt)
 			case '>':
 				w.Write(jsGt)
+			case '&':
+				w.Write(jsAmp)
+			case '=':
+				w.Write(jsEq)
 			default:
 				w.Write(jsLowUni)
 				t, b := c>>4, c&0x0f
@@ -698,7 +710,7 @@
 
 func jsIsSpecial(r rune) bool {
 	switch r {
-	case '\\', '\'', '"', '<', '>':
+	case '\\', '\'', '"', '<', '>', '&', '=':
 		return true
 	}
 	return r < ' ' || utf8.RuneSelf <= r
diff --git a/libgo/go/text/template/parse/node.go b/libgo/go/text/template/parse/node.go
index 1174a4b..1c116ea 100644
--- a/libgo/go/text/template/parse/node.go
+++ b/libgo/go/text/template/parse/node.go
@@ -7,7 +7,6 @@
 package parse
 
 import (
-	"bytes"
 	"fmt"
 	"strconv"
 	"strings"
@@ -29,6 +28,8 @@
 	// tree returns the containing *Tree.
 	// It is unexported so all implementations of Node are in this package.
 	tree() *Tree
+	// writeTo writes the String output to the builder.
+	writeTo(*strings.Builder)
 }
 
 // NodeType identifies the type of a parse tree node.
@@ -94,11 +95,15 @@
 }
 
 func (l *ListNode) String() string {
-	b := new(bytes.Buffer)
+	var sb strings.Builder
+	l.writeTo(&sb)
+	return sb.String()
+}
+
+func (l *ListNode) writeTo(sb *strings.Builder) {
 	for _, n := range l.Nodes {
-		fmt.Fprint(b, n)
+		n.writeTo(sb)
 	}
-	return b.String()
 }
 
 func (l *ListNode) CopyList() *ListNode {
@@ -132,6 +137,10 @@
 	return fmt.Sprintf(textFormat, t.Text)
 }
 
+func (t *TextNode) writeTo(sb *strings.Builder) {
+	sb.WriteString(t.String())
+}
+
 func (t *TextNode) tree() *Tree {
 	return t.tr
 }
@@ -160,23 +169,27 @@
 }
 
 func (p *PipeNode) String() string {
-	s := ""
+	var sb strings.Builder
+	p.writeTo(&sb)
+	return sb.String()
+}
+
+func (p *PipeNode) writeTo(sb *strings.Builder) {
 	if len(p.Decl) > 0 {
 		for i, v := range p.Decl {
 			if i > 0 {
-				s += ", "
+				sb.WriteString(", ")
 			}
-			s += v.String()
+			v.writeTo(sb)
 		}
-		s += " := "
+		sb.WriteString(" := ")
 	}
 	for i, c := range p.Cmds {
 		if i > 0 {
-			s += " | "
+			sb.WriteString(" | ")
 		}
-		s += c.String()
+		c.writeTo(sb)
 	}
-	return s
 }
 
 func (p *PipeNode) tree() *Tree {
@@ -187,9 +200,9 @@
 	if p == nil {
 		return p
 	}
-	var vars []*VariableNode
-	for _, d := range p.Decl {
-		vars = append(vars, d.Copy().(*VariableNode))
+	vars := make([]*VariableNode, len(p.Decl))
+	for i, d := range p.Decl {
+		vars[i] = d.Copy().(*VariableNode)
 	}
 	n := p.tr.newPipeline(p.Pos, p.Line, vars)
 	n.IsAssign = p.IsAssign
@@ -219,8 +232,15 @@
 }
 
 func (a *ActionNode) String() string {
-	return fmt.Sprintf("{{%s}}", a.Pipe)
+	var sb strings.Builder
+	a.writeTo(&sb)
+	return sb.String()
+}
 
+func (a *ActionNode) writeTo(sb *strings.Builder) {
+	sb.WriteString("{{")
+	a.Pipe.writeTo(sb)
+	sb.WriteString("}}")
 }
 
 func (a *ActionNode) tree() *Tree {
@@ -249,18 +269,24 @@
 }
 
 func (c *CommandNode) String() string {
-	s := ""
+	var sb strings.Builder
+	c.writeTo(&sb)
+	return sb.String()
+}
+
+func (c *CommandNode) writeTo(sb *strings.Builder) {
 	for i, arg := range c.Args {
 		if i > 0 {
-			s += " "
+			sb.WriteByte(' ')
 		}
 		if arg, ok := arg.(*PipeNode); ok {
-			s += "(" + arg.String() + ")"
+			sb.WriteByte('(')
+			arg.writeTo(sb)
+			sb.WriteByte(')')
 			continue
 		}
-		s += arg.String()
+		arg.writeTo(sb)
 	}
-	return s
 }
 
 func (c *CommandNode) tree() *Tree {
@@ -311,6 +337,10 @@
 	return i.Ident
 }
 
+func (i *IdentifierNode) writeTo(sb *strings.Builder) {
+	sb.WriteString(i.String())
+}
+
 func (i *IdentifierNode) tree() *Tree {
 	return i.tr
 }
@@ -333,14 +363,18 @@
 }
 
 func (v *VariableNode) String() string {
-	s := ""
+	var sb strings.Builder
+	v.writeTo(&sb)
+	return sb.String()
+}
+
+func (v *VariableNode) writeTo(sb *strings.Builder) {
 	for i, id := range v.Ident {
 		if i > 0 {
-			s += "."
+			sb.WriteByte('.')
 		}
-		s += id
+		sb.WriteString(id)
 	}
-	return s
 }
 
 func (v *VariableNode) tree() *Tree {
@@ -373,6 +407,10 @@
 	return "."
 }
 
+func (d *DotNode) writeTo(sb *strings.Builder) {
+	sb.WriteString(d.String())
+}
+
 func (d *DotNode) tree() *Tree {
 	return d.tr
 }
@@ -403,6 +441,10 @@
 	return "nil"
 }
 
+func (n *NilNode) writeTo(sb *strings.Builder) {
+	sb.WriteString(n.String())
+}
+
 func (n *NilNode) tree() *Tree {
 	return n.tr
 }
@@ -426,11 +468,16 @@
 }
 
 func (f *FieldNode) String() string {
-	s := ""
+	var sb strings.Builder
+	f.writeTo(&sb)
+	return sb.String()
+}
+
+func (f *FieldNode) writeTo(sb *strings.Builder) {
 	for _, id := range f.Ident {
-		s += "." + id
+		sb.WriteByte('.')
+		sb.WriteString(id)
 	}
-	return s
 }
 
 func (f *FieldNode) tree() *Tree {
@@ -469,14 +516,23 @@
 }
 
 func (c *ChainNode) String() string {
-	s := c.Node.String()
+	var sb strings.Builder
+	c.writeTo(&sb)
+	return sb.String()
+}
+
+func (c *ChainNode) writeTo(sb *strings.Builder) {
 	if _, ok := c.Node.(*PipeNode); ok {
-		s = "(" + s + ")"
+		sb.WriteByte('(')
+		c.Node.writeTo(sb)
+		sb.WriteByte(')')
+	} else {
+		c.Node.writeTo(sb)
 	}
 	for _, field := range c.Field {
-		s += "." + field
+		sb.WriteByte('.')
+		sb.WriteString(field)
 	}
-	return s
 }
 
 func (c *ChainNode) tree() *Tree {
@@ -506,6 +562,10 @@
 	return "false"
 }
 
+func (b *BoolNode) writeTo(sb *strings.Builder) {
+	sb.WriteString(b.String())
+}
+
 func (b *BoolNode) tree() *Tree {
 	return b.tr
 }
@@ -639,6 +699,10 @@
 	return n.Text
 }
 
+func (n *NumberNode) writeTo(sb *strings.Builder) {
+	sb.WriteString(n.String())
+}
+
 func (n *NumberNode) tree() *Tree {
 	return n.tr
 }
@@ -666,6 +730,10 @@
 	return s.Quoted
 }
 
+func (s *StringNode) writeTo(sb *strings.Builder) {
+	sb.WriteString(s.String())
+}
+
 func (s *StringNode) tree() *Tree {
 	return s.tr
 }
@@ -690,6 +758,10 @@
 	return "{{end}}"
 }
 
+func (e *endNode) writeTo(sb *strings.Builder) {
+	sb.WriteString(e.String())
+}
+
 func (e *endNode) tree() *Tree {
 	return e.tr
 }
@@ -718,6 +790,10 @@
 	return "{{else}}"
 }
 
+func (e *elseNode) writeTo(sb *strings.Builder) {
+	sb.WriteString(e.String())
+}
+
 func (e *elseNode) tree() *Tree {
 	return e.tr
 }
@@ -738,6 +814,12 @@
 }
 
 func (b *BranchNode) String() string {
+	var sb strings.Builder
+	b.writeTo(&sb)
+	return sb.String()
+}
+
+func (b *BranchNode) writeTo(sb *strings.Builder) {
 	name := ""
 	switch b.NodeType {
 	case NodeIf:
@@ -749,10 +831,17 @@
 	default:
 		panic("unknown branch type")
 	}
+	sb.WriteString("{{")
+	sb.WriteString(name)
+	sb.WriteByte(' ')
+	b.Pipe.writeTo(sb)
+	sb.WriteString("}}")
+	b.List.writeTo(sb)
 	if b.ElseList != nil {
-		return fmt.Sprintf("{{%s %s}}%s{{else}}%s{{end}}", name, b.Pipe, b.List, b.ElseList)
+		sb.WriteString("{{else}}")
+		b.ElseList.writeTo(sb)
 	}
-	return fmt.Sprintf("{{%s %s}}%s{{end}}", name, b.Pipe, b.List)
+	sb.WriteString("{{end}}")
 }
 
 func (b *BranchNode) tree() *Tree {
@@ -826,10 +915,19 @@
 }
 
 func (t *TemplateNode) String() string {
-	if t.Pipe == nil {
-		return fmt.Sprintf("{{template %q}}", t.Name)
+	var sb strings.Builder
+	t.writeTo(&sb)
+	return sb.String()
+}
+
+func (t *TemplateNode) writeTo(sb *strings.Builder) {
+	sb.WriteString("{{template ")
+	sb.WriteString(strconv.Quote(t.Name))
+	if t.Pipe != nil {
+		sb.WriteByte(' ')
+		t.Pipe.writeTo(sb)
 	}
-	return fmt.Sprintf("{{template %q %s}}", t.Name, t.Pipe)
+	sb.WriteString("}}")
 }
 
 func (t *TemplateNode) tree() *Tree {
diff --git a/libgo/go/text/template/parse/parse.go b/libgo/go/text/template/parse/parse.go
index 7c35b0f..c9b80f4 100644
--- a/libgo/go/text/template/parse/parse.go
+++ b/libgo/go/text/template/parse/parse.go
@@ -108,13 +108,8 @@
 }
 
 // peekNonSpace returns but does not consume the next non-space token.
-func (t *Tree) peekNonSpace() (token item) {
-	for {
-		token = t.next()
-		if token.typ != itemSpace {
-			break
-		}
-	}
+func (t *Tree) peekNonSpace() item {
+	token := t.nextNonSpace()
 	t.backup()
 	return token
 }
diff --git a/libgo/go/text/template/parse/parse_test.go b/libgo/go/text/template/parse/parse_test.go
index 6932cf2..4e09a78 100644
--- a/libgo/go/text/template/parse/parse_test.go
+++ b/libgo/go/text/template/parse/parse_test.go
@@ -304,7 +304,8 @@
 }
 
 var builtins = map[string]interface{}{
-	"printf": fmt.Sprintf,
+	"printf":   fmt.Sprintf,
+	"contains": strings.Contains,
 }
 
 func testParse(doCopy bool, t *testing.T) {
@@ -553,3 +554,52 @@
 		}
 	}
 }
+
+var sinkv, sinkl string
+
+func BenchmarkVariableString(b *testing.B) {
+	v := &VariableNode{
+		Ident: []string{"$", "A", "BB", "CCC", "THIS_IS_THE_VARIABLE_BEING_PROCESSED"},
+	}
+	b.ResetTimer()
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		sinkv = v.String()
+	}
+	if sinkv == "" {
+		b.Fatal("Benchmark was not run")
+	}
+}
+
+func BenchmarkListString(b *testing.B) {
+	text := `
+{{(printf .Field1.Field2.Field3).Value}}
+{{$x := (printf .Field1.Field2.Field3).Value}}
+{{$y := (printf $x.Field1.Field2.Field3).Value}}
+{{$z := $y.Field1.Field2.Field3}}
+{{if contains $y $z}}
+	{{printf "%q" $y}}
+{{else}}
+	{{printf "%q" $x}}
+{{end}}
+{{with $z.Field1 | contains "boring"}}
+	{{printf "%q" . | printf "%s"}}
+{{else}}
+	{{printf "%d %d %d" 11 11 11}}
+	{{printf "%d %d %s" 22 22 $x.Field1.Field2.Field3 | printf "%s"}}
+	{{printf "%v" (contains $z.Field1.Field2 $y)}}
+{{end}}
+`
+	tree, err := New("bench").Parse(text, "", "", make(map[string]*Tree), builtins)
+	if err != nil {
+		b.Fatal(err)
+	}
+	b.ResetTimer()
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		sinkl = tree.Root.String()
+	}
+	if sinkl == "" {
+		b.Fatal("Benchmark was not run")
+	}
+}
diff --git a/libgo/go/text/template/template.go b/libgo/go/text/template/template.go
index 1135d81..e0c0962 100644
--- a/libgo/go/text/template/template.go
+++ b/libgo/go/text/template/template.go
@@ -110,20 +110,21 @@
 
 // copy returns a shallow copy of t, with common set to the argument.
 func (t *Template) copy(c *common) *Template {
-	nt := New(t.name)
-	nt.Tree = t.Tree
-	nt.common = c
-	nt.leftDelim = t.leftDelim
-	nt.rightDelim = t.rightDelim
-	return nt
+	return &Template{
+		name:       t.name,
+		Tree:       t.Tree,
+		common:     c,
+		leftDelim:  t.leftDelim,
+		rightDelim: t.rightDelim,
+	}
 }
 
-// AddParseTree adds parse tree for template with given name and associates it with t.
-// If the template does not already exist, it will create a new one.
-// If the template does exist, it will be replaced.
+// AddParseTree associates the argument parse tree with the template t, giving
+// it the specified name. If the template has not been defined, this tree becomes
+// its definition. If it has been defined and already has that name, the existing
+// definition is replaced; otherwise a new template is created, defined, and returned.
 func (t *Template) AddParseTree(name string, tree *parse.Tree) (*Template, error) {
 	t.init()
-	// If the name is the name of this template, overwrite this template.
 	nt := t
 	if name != t.name {
 		nt = t.New(name)
diff --git a/libgo/go/time/example_test.go b/libgo/go/time/example_test.go
index 25c34eb..5a037da 100644
--- a/libgo/go/time/example_test.go
+++ b/libgo/go/time/example_test.go
@@ -113,6 +113,20 @@
 	// Output: I've got 4.5 hours of work left.
 }
 
+func ExampleDuration_Microseconds() {
+	u, _ := time.ParseDuration("1s")
+	fmt.Printf("One second is %d microseconds.\n", u.Microseconds())
+	// Output:
+	// One second is 1000000 microseconds.
+}
+
+func ExampleDuration_Milliseconds() {
+	u, _ := time.ParseDuration("1s")
+	fmt.Printf("One second is %d milliseconds.\n", u.Milliseconds())
+	// Output:
+	// One second is 1000 milliseconds.
+}
+
 func ExampleDuration_Minutes() {
 	m, _ := time.ParseDuration("1h30m")
 	fmt.Printf("The movie is %.0f minutes long.", m.Minutes())
@@ -153,8 +167,8 @@
 
 func ExampleTick() {
 	c := time.Tick(5 * time.Second)
-	for now := range c {
-		fmt.Printf("%v %s\n", now, statusUpdate())
+	for next := range c {
+		fmt.Printf("%v %s\n", next, statusUpdate())
 	}
 }
 
@@ -349,6 +363,7 @@
 func ExampleParseInLocation() {
 	loc, _ := time.LoadLocation("Europe/Berlin")
 
+	// This will look for the name CEST in the Europe/Berlin time zone.
 	const longForm = "Jan 2, 2006 at 3:04pm (MST)"
 	t, _ := time.ParseInLocation(longForm, "Jul 9, 2012 at 5:02am (CEST)", loc)
 	fmt.Println(t)
diff --git a/libgo/go/time/format_test.go b/libgo/go/time/format_test.go
index ac21570..3dbb774 100644
--- a/libgo/go/time/format_test.go
+++ b/libgo/go/time/format_test.go
@@ -119,7 +119,7 @@
 }
 
 func TestFormat(t *testing.T) {
-	// The numeric time represents Thu Feb  4 21:00:57.012345600 PST 2010
+	// The numeric time represents Thu Feb  4 21:00:57.012345600 PST 2009
 	time := Unix(0, 1233810057012345600)
 	for _, test := range formatTests {
 		result := time.Format(test.format)
diff --git a/libgo/go/time/genzabbrs.go b/libgo/go/time/genzabbrs.go
index e062cc2..38397f9 100644
--- a/libgo/go/time/genzabbrs.go
+++ b/libgo/go/time/genzabbrs.go
@@ -52,7 +52,7 @@
 	DSTime   string
 }
 
-const wzURL = "http://unicode.org/cldr/data/common/supplemental/windowsZones.xml"
+const wzURL = "https://raw.githubusercontent.com/unicode-org/cldr/master/common/supplemental/windowsZones.xml"
 
 type MapZone struct {
 	Other     string `xml:"other,attr"`
diff --git a/libgo/go/time/internal_test.go b/libgo/go/time/internal_test.go
index ba5e00e..1e14f6c 100644
--- a/libgo/go/time/internal_test.go
+++ b/libgo/go/time/internal_test.go
@@ -69,8 +69,7 @@
 		// once more.
 		stopTimer(r)
 		t.Stop()
-		r.when = 0
-		startTimer(r)
+		resetTimer(r, 0)
 	}()
 
 	// If the test fails, we will hang here until the timeout in the testing package
diff --git a/libgo/go/time/sleep.go b/libgo/go/time/sleep.go
index 2cc908d..37de846 100644
--- a/libgo/go/time/sleep.go
+++ b/libgo/go/time/sleep.go
@@ -11,14 +11,14 @@
 // Interface to timers implemented in package runtime.
 // Must be in sync with ../runtime/time.go:/^type timer
 type runtimeTimer struct {
-	tb uintptr
-	i  int
-
-	when   int64
-	period int64
-	f      func(interface{}, uintptr) // NOTE: must not be closure
-	arg    interface{}
-	seq    uintptr
+	pp       uintptr
+	when     int64
+	period   int64
+	f        func(interface{}, uintptr) // NOTE: must not be closure
+	arg      interface{}
+	seq      uintptr
+	nextwhen int64
+	status   uint32
 }
 
 // when is a helper function for setting the 'when' field of a runtimeTimer.
@@ -38,6 +38,7 @@
 
 func startTimer(*runtimeTimer)
 func stopTimer(*runtimeTimer) bool
+func resetTimer(*runtimeTimer, int64)
 
 // The Timer type represents a single event.
 // When the Timer expires, the current time will be sent on C,
@@ -63,7 +64,7 @@
 // 	}
 //
 // This cannot be done concurrent to other receives from the Timer's
-// channel.
+// channel or other calls to the Timer's Stop method.
 //
 // For a timer created with AfterFunc(d, f), if t.Stop returns false, then the timer
 // has already expired and the function f has been started in its own goroutine;
@@ -122,8 +123,7 @@
 	}
 	w := when(d)
 	active := stopTimer(&t.r)
-	t.r.when = w
-	startTimer(&t.r)
+	resetTimer(&t.r, w)
 	return active
 }
 
diff --git a/libgo/go/time/sleep_test.go b/libgo/go/time/sleep_test.go
index 42df6d1..26cc488 100644
--- a/libgo/go/time/sleep_test.go
+++ b/libgo/go/time/sleep_test.go
@@ -235,28 +235,59 @@
 }
 
 func TestAfterStop(t *testing.T) {
-	AfterFunc(100*Millisecond, func() {})
-	t0 := NewTimer(50 * Millisecond)
-	c1 := make(chan bool, 1)
-	t1 := AfterFunc(150*Millisecond, func() { c1 <- true })
-	c2 := After(200 * Millisecond)
-	if !t0.Stop() {
-		t.Fatalf("failed to stop event 0")
+	// We want to test that we stop a timer before it runs.
+	// We also want to test that it didn't run after a longer timer.
+	// Since we don't want the test to run for too long, we don't
+	// want to use lengthy times. That makes the test inherently flaky.
+	// So only report an error if it fails five times in a row.
+
+	var errs []string
+	logErrs := func() {
+		for _, e := range errs {
+			t.Log(e)
+		}
 	}
-	if !t1.Stop() {
-		t.Fatalf("failed to stop event 1")
+
+	for i := 0; i < 5; i++ {
+		AfterFunc(100*Millisecond, func() {})
+		t0 := NewTimer(50 * Millisecond)
+		c1 := make(chan bool, 1)
+		t1 := AfterFunc(150*Millisecond, func() { c1 <- true })
+		c2 := After(200 * Millisecond)
+		if !t0.Stop() {
+			errs = append(errs, "failed to stop event 0")
+			continue
+		}
+		if !t1.Stop() {
+			errs = append(errs, "failed to stop event 1")
+			continue
+		}
+		<-c2
+		select {
+		case <-t0.C:
+			errs = append(errs, "event 0 was not stopped")
+			continue
+		case <-c1:
+			errs = append(errs, "event 1 was not stopped")
+			continue
+		default:
+		}
+		if t1.Stop() {
+			errs = append(errs, "Stop returned true twice")
+			continue
+		}
+
+		// Test passed, so all done.
+		if len(errs) > 0 {
+			t.Logf("saw %d errors, ignoring to avoid flakiness", len(errs))
+			logErrs()
+		}
+
+		return
 	}
-	<-c2
-	select {
-	case <-t0.C:
-		t.Fatalf("event 0 was not stopped")
-	case <-c1:
-		t.Fatalf("event 1 was not stopped")
-	default:
-	}
-	if t1.Stop() {
-		t.Fatalf("Stop returned true twice")
-	}
+
+	t.Errorf("saw %d errors", len(errs))
+	logErrs()
 }
 
 func TestAfterQueuing(t *testing.T) {
diff --git a/libgo/go/time/sys_unix.go b/libgo/go/time/sys_unix.go
index 3af2288..ec98d6e 100644
--- a/libgo/go/time/sys_unix.go
+++ b/libgo/go/time/sys_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd hurd js,wasm linux netbsd openbsd solaris
 
 package time
 
diff --git a/libgo/go/time/tick_test.go b/libgo/go/time/tick_test.go
index dd17aab..71ea367 100644
--- a/libgo/go/time/tick_test.go
+++ b/libgo/go/time/tick_test.go
@@ -5,34 +5,70 @@
 package time_test
 
 import (
+	"fmt"
+	"runtime"
 	"testing"
 	. "time"
 )
 
 func TestTicker(t *testing.T) {
-	const Count = 10
-	Delta := 100 * Millisecond
-	ticker := NewTicker(Delta)
-	t0 := Now()
-	for i := 0; i < Count; i++ {
-		<-ticker.C
+	// We want to test that a ticker takes as much time as expected.
+	// Since we don't want the test to run for too long, we don't
+	// want to use lengthy times. This makes the test inherently flaky.
+	// So only report an error if it fails five times in a row.
+
+	count := 10
+	delta := 20 * Millisecond
+
+	// On Darwin ARM64 the tick frequency seems limited. Issue 35692.
+	if runtime.GOOS == "darwin" && runtime.GOARCH == "arm64" {
+		count = 5
+		delta = 100 * Millisecond
 	}
-	ticker.Stop()
-	t1 := Now()
-	dt := t1.Sub(t0)
-	target := Delta * Count
-	slop := target * 2 / 10
-	if dt < target-slop || (!testing.Short() && dt > target+slop) {
-		t.Fatalf("%d %s ticks took %s, expected [%s,%s]", Count, Delta, dt, target-slop, target+slop)
+
+	var errs []string
+	logErrs := func() {
+		for _, e := range errs {
+			t.Log(e)
+		}
 	}
-	// Now test that the ticker stopped
-	Sleep(2 * Delta)
-	select {
-	case <-ticker.C:
-		t.Fatal("Ticker did not shut down")
-	default:
-		// ok
+
+	for i := 0; i < 5; i++ {
+		ticker := NewTicker(delta)
+		t0 := Now()
+		for i := 0; i < count; i++ {
+			<-ticker.C
+		}
+		ticker.Stop()
+		t1 := Now()
+		dt := t1.Sub(t0)
+		target := delta * Duration(count)
+		slop := target * 2 / 10
+		if dt < target-slop || dt > target+slop {
+			errs = append(errs, fmt.Sprintf("%d %s ticks took %s, expected [%s,%s]", count, delta, dt, target-slop, target+slop))
+			continue
+		}
+		// Now test that the ticker stopped.
+		Sleep(2 * delta)
+		select {
+		case <-ticker.C:
+			errs = append(errs, "Ticker did not shut down")
+			continue
+		default:
+			// ok
+		}
+
+		// Test passed, so all done.
+		if len(errs) > 0 {
+			t.Logf("saw %d errors, ignoring to avoid flakiness", len(errs))
+			logErrs()
+		}
+
+		return
 	}
+
+	t.Errorf("saw %d errors", len(errs))
+	logErrs()
 }
 
 // Issue 21874
diff --git a/libgo/go/time/time.go b/libgo/go/time/time.go
index 0d1cb9e..10a132f 100644
--- a/libgo/go/time/time.go
+++ b/libgo/go/time/time.go
@@ -257,7 +257,7 @@
 
 // Equal reports whether t and u represent the same time instant.
 // Two times can be equal even if they are in different locations.
-// For example, 6:00 +0200 CEST and 4:00 UTC are Equal.
+// For example, 6:00 +0200 and 4:00 UTC are Equal.
 // See the documentation on the Time type for the pitfalls of using == with
 // Time values; most code should use Equal instead.
 func (t Time) Equal(u Time) bool {
diff --git a/libgo/go/time/zoneinfo.go b/libgo/go/time/zoneinfo.go
index 7dffbfa..558803f 100644
--- a/libgo/go/time/zoneinfo.go
+++ b/libgo/go/time/zoneinfo.go
@@ -14,7 +14,8 @@
 
 // A Location maps time instants to the zone in use at that time.
 // Typically, the Location represents the collection of time offsets
-// in use in a geographical area, such as CEST and CET for central Europe.
+// in use in a geographical area. For many Locations the time offset varies
+// depending on whether daylight savings time is in use at the time instant.
 type Location struct {
 	name string
 	zone []zone
@@ -34,7 +35,7 @@
 	cacheZone  *zone
 }
 
-// A zone represents a single time zone such as CEST or CET.
+// A zone represents a single time zone such as CET.
 type zone struct {
 	name   string // abbreviated name, "CET"
 	offset int    // seconds east of UTC
@@ -64,6 +65,11 @@
 var utcLoc = Location{name: "UTC"}
 
 // Local represents the system's local time zone.
+// On Unix systems, Local consults the TZ environment
+// variable to find the time zone to use. No TZ means
+// use the system default /etc/localtime.
+// TZ="" means use UTC.
+// TZ="foo" means use file foo in the system timezone directory.
 var Local *Location = &localLoc
 
 // localLoc is separate so that initLocal can initialize
diff --git a/libgo/go/time/zoneinfo_abbrs_windows.go b/libgo/go/time/zoneinfo_abbrs_windows.go
index 5411325..3294d0d 100644
--- a/libgo/go/time/zoneinfo_abbrs_windows.go
+++ b/libgo/go/time/zoneinfo_abbrs_windows.go
@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // Code generated by genzabbrs.go; DO NOT EDIT.
-// Based on information from http://unicode.org/cldr/data/common/supplemental/windowsZones.xml
+// Based on information from https://raw.githubusercontent.com/unicode-org/cldr/master/common/supplemental/windowsZones.xml
 
 package time
 
@@ -14,11 +14,12 @@
 
 var abbrs = map[string]abbr{
 	"Egypt Standard Time":             {"EET", "EET"},     // Africa/Cairo
-	"Morocco Standard Time":           {"WET", "WEST"},    // Africa/Casablanca
+	"Morocco Standard Time":           {"+00", "+01"},     // Africa/Casablanca
 	"South Africa Standard Time":      {"SAST", "SAST"},   // Africa/Johannesburg
 	"Sudan Standard Time":             {"CAT", "CAT"},     // Africa/Khartoum
 	"W. Central Africa Standard Time": {"WAT", "WAT"},     // Africa/Lagos
 	"E. Africa Standard Time":         {"EAT", "EAT"},     // Africa/Nairobi
+	"Sao Tome Standard Time":          {"GMT", "WAT"},     // Africa/Sao_Tome
 	"Libya Standard Time":             {"EET", "EET"},     // Africa/Tripoli
 	"Namibia Standard Time":           {"CAT", "CAT"},     // Africa/Windhoek
 	"Aleutian Standard Time":          {"HST", "HDT"},     // America/Adak
@@ -36,7 +37,7 @@
 	"Central Brazilian Standard Time": {"-04", "-03"},     // America/Cuiaba
 	"Mountain Standard Time":          {"MST", "MDT"},     // America/Denver
 	"Greenland Standard Time":         {"-03", "-02"},     // America/Godthab
-	"Turks And Caicos Standard Time":  {"AST", "EDT"},     // America/Grand_Turk
+	"Turks And Caicos Standard Time":  {"EST", "EDT"},     // America/Grand_Turk
 	"Central America Standard Time":   {"CST", "CST"},     // America/Guatemala
 	"Atlantic Standard Time":          {"AST", "ADT"},     // America/Halifax
 	"Cuba Standard Time":              {"CST", "CDT"},     // America/Havana
@@ -81,6 +82,7 @@
 	"N. Central Asia Standard Time":   {"+07", "+07"},     // Asia/Novosibirsk
 	"Omsk Standard Time":              {"+06", "+06"},     // Asia/Omsk
 	"North Korea Standard Time":       {"KST", "KST"},     // Asia/Pyongyang
+	"Qyzylorda Standard Time":         {"+05", "+06"},     // Asia/Qyzylorda
 	"Myanmar Standard Time":           {"+0630", "+0630"}, // Asia/Rangoon
 	"Arab Standard Time":              {"+03", "+03"},     // Asia/Riyadh
 	"Sakhalin Standard Time":          {"+11", "+11"},     // Asia/Sakhalin
@@ -132,6 +134,7 @@
 	"Romance Standard Time":           {"CET", "CEST"},    // Europe/Paris
 	"Russia Time Zone 3":              {"+04", "+04"},     // Europe/Samara
 	"Saratov Standard Time":           {"+04", "+04"},     // Europe/Saratov
+	"Volgograd Standard Time":         {"+04", "+04"},     // Europe/Volgograd
 	"Central European Standard Time":  {"CET", "CEST"},    // Europe/Warsaw
 	"Mauritius Standard Time":         {"+04", "+04"},     // Indian/Mauritius
 	"Samoa Standard Time":             {"+13", "+14"},     // Pacific/Apia
diff --git a/libgo/go/time/zoneinfo_unix.go b/libgo/go/time/zoneinfo_unix.go
index 495a7e6..dc425a5 100644
--- a/libgo/go/time/zoneinfo_unix.go
+++ b/libgo/go/time/zoneinfo_unix.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin,386 darwin,amd64 dragonfly freebsd hurd js,wasm linux,!android nacl netbsd openbsd solaris
+// +build aix darwin,386 darwin,amd64 dragonfly freebsd hurd linux,!android netbsd openbsd solaris
 
 // Parse "zoneinfo" time zone file.
 // This is a fairly standard file format used on OS X, Linux, BSD, Sun, and others.
diff --git a/libgo/go/unicode/tables.go b/libgo/go/unicode/tables.go
index ba7631b..1244168 100644
--- a/libgo/go/unicode/tables.go
+++ b/libgo/go/unicode/tables.go
@@ -3,7 +3,7 @@
 package unicode
 
 // Version is the Unicode edition from which the tables are derived.
-const Version = "11.0.0"
+const Version = "12.0.0"
 
 // Categories is the set of Unicode category tables.
 var Categories = map[string]*RangeTable{
@@ -64,6 +64,7 @@
 	},
 	R32: []Range32{
 		{0x110bd, 0x110cd, 16},
+		{0x13430, 0x13438, 1},
 		{0x1bca0, 0x1bca3, 1},
 		{0x1d173, 0x1d17a, 1},
 		{0xe0001, 0xe0020, 31},
@@ -98,6 +99,7 @@
 	},
 	R32: []Range32{
 		{0x110bd, 0x110cd, 16},
+		{0x13430, 0x13438, 1},
 		{0x1bca0, 0x1bca3, 1},
 		{0x1d173, 0x1d17a, 1},
 		{0xe0001, 0xe0020, 31},
@@ -255,15 +257,11 @@
 		{0x0e32, 0x0e33, 1},
 		{0x0e40, 0x0e46, 1},
 		{0x0e81, 0x0e82, 1},
-		{0x0e84, 0x0e87, 3},
-		{0x0e88, 0x0e8a, 2},
-		{0x0e8d, 0x0e94, 7},
-		{0x0e95, 0x0e97, 1},
-		{0x0e99, 0x0e9f, 1},
-		{0x0ea1, 0x0ea3, 1},
+		{0x0e84, 0x0e86, 2},
+		{0x0e87, 0x0e8a, 1},
+		{0x0e8c, 0x0ea3, 1},
 		{0x0ea5, 0x0ea7, 2},
-		{0x0eaa, 0x0eab, 1},
-		{0x0ead, 0x0eb0, 1},
+		{0x0ea8, 0x0eb0, 1},
 		{0x0eb2, 0x0eb3, 1},
 		{0x0ebd, 0x0ec0, 3},
 		{0x0ec1, 0x0ec4, 1},
@@ -342,9 +340,10 @@
 		{0x1c90, 0x1cba, 1},
 		{0x1cbd, 0x1cbf, 1},
 		{0x1ce9, 0x1cec, 1},
-		{0x1cee, 0x1cf1, 1},
+		{0x1cee, 0x1cf3, 1},
 		{0x1cf5, 0x1cf6, 1},
-		{0x1d00, 0x1dbf, 1},
+		{0x1cfa, 0x1d00, 6},
+		{0x1d01, 0x1dbf, 1},
 		{0x1e00, 0x1f15, 1},
 		{0x1f18, 0x1f1d, 1},
 		{0x1f20, 0x1f45, 1},
@@ -417,7 +416,8 @@
 		{0xa6a0, 0xa6e5, 1},
 		{0xa717, 0xa71f, 1},
 		{0xa722, 0xa788, 1},
-		{0xa78b, 0xa7b9, 1},
+		{0xa78b, 0xa7bf, 1},
+		{0xa7c2, 0xa7c6, 1},
 		{0xa7f7, 0xa801, 1},
 		{0xa803, 0xa805, 1},
 		{0xa807, 0xa80a, 1},
@@ -454,7 +454,7 @@
 		{0xab20, 0xab26, 1},
 		{0xab28, 0xab2e, 1},
 		{0xab30, 0xab5a, 1},
-		{0xab5c, 0xab65, 1},
+		{0xab5c, 0xab67, 1},
 		{0xab70, 0xabe2, 1},
 		{0xac00, 0xd7a3, 1},
 		{0xd7b0, 0xd7c6, 1},
@@ -543,6 +543,7 @@
 		{0x10f00, 0x10f1c, 1},
 		{0x10f27, 0x10f30, 9},
 		{0x10f31, 0x10f45, 1},
+		{0x10fe0, 0x10ff6, 1},
 		{0x11003, 0x11037, 1},
 		{0x11083, 0x110af, 1},
 		{0x110d0, 0x110e8, 1},
@@ -571,7 +572,8 @@
 		{0x1135d, 0x11361, 1},
 		{0x11400, 0x11434, 1},
 		{0x11447, 0x1144a, 1},
-		{0x11480, 0x114af, 1},
+		{0x1145f, 0x11480, 33},
+		{0x11481, 0x114af, 1},
 		{0x114c4, 0x114c5, 1},
 		{0x114c7, 0x11580, 185},
 		{0x11581, 0x115ae, 1},
@@ -579,14 +581,18 @@
 		{0x11600, 0x1162f, 1},
 		{0x11644, 0x11680, 60},
 		{0x11681, 0x116aa, 1},
-		{0x11700, 0x1171a, 1},
+		{0x116b8, 0x11700, 72},
+		{0x11701, 0x1171a, 1},
 		{0x11800, 0x1182b, 1},
 		{0x118a0, 0x118df, 1},
-		{0x118ff, 0x11a00, 257},
-		{0x11a0b, 0x11a32, 1},
+		{0x118ff, 0x119a0, 161},
+		{0x119a1, 0x119a7, 1},
+		{0x119aa, 0x119d0, 1},
+		{0x119e1, 0x119e3, 2},
+		{0x11a00, 0x11a0b, 11},
+		{0x11a0c, 0x11a32, 1},
 		{0x11a3a, 0x11a50, 22},
-		{0x11a5c, 0x11a83, 1},
-		{0x11a86, 0x11a89, 1},
+		{0x11a5c, 0x11a89, 1},
 		{0x11a9d, 0x11ac0, 35},
 		{0x11ac1, 0x11af8, 1},
 		{0x11c00, 0x11c08, 1},
@@ -614,13 +620,16 @@
 		{0x16b63, 0x16b77, 1},
 		{0x16b7d, 0x16b8f, 1},
 		{0x16e40, 0x16e7f, 1},
-		{0x16f00, 0x16f44, 1},
+		{0x16f00, 0x16f4a, 1},
 		{0x16f50, 0x16f93, 67},
 		{0x16f94, 0x16f9f, 1},
 		{0x16fe0, 0x16fe1, 1},
-		{0x17000, 0x187f1, 1},
+		{0x16fe3, 0x17000, 29},
+		{0x17001, 0x187f7, 1},
 		{0x18800, 0x18af2, 1},
 		{0x1b000, 0x1b11e, 1},
+		{0x1b150, 0x1b152, 1},
+		{0x1b164, 0x1b167, 1},
 		{0x1b170, 0x1b2fb, 1},
 		{0x1bc00, 0x1bc6a, 1},
 		{0x1bc70, 0x1bc7c, 1},
@@ -656,9 +665,14 @@
 		{0x1d78a, 0x1d7a8, 1},
 		{0x1d7aa, 0x1d7c2, 1},
 		{0x1d7c4, 0x1d7cb, 1},
+		{0x1e100, 0x1e12c, 1},
+		{0x1e137, 0x1e13d, 1},
+		{0x1e14e, 0x1e2c0, 370},
+		{0x1e2c1, 0x1e2eb, 1},
 		{0x1e800, 0x1e8c4, 1},
 		{0x1e900, 0x1e943, 1},
-		{0x1ee00, 0x1ee03, 1},
+		{0x1e94b, 0x1ee00, 1205},
+		{0x1ee01, 0x1ee03, 1},
 		{0x1ee05, 0x1ee1f, 1},
 		{0x1ee21, 0x1ee22, 1},
 		{0x1ee24, 0x1ee27, 3},
@@ -806,10 +820,10 @@
 		{0xa794, 0xa795, 1},
 		{0xa797, 0xa7a9, 2},
 		{0xa7af, 0xa7b5, 6},
-		{0xa7b7, 0xa7b9, 2},
-		{0xa7fa, 0xab30, 822},
-		{0xab31, 0xab5a, 1},
-		{0xab60, 0xab65, 1},
+		{0xa7b7, 0xa7bf, 2},
+		{0xa7c3, 0xa7fa, 55},
+		{0xab30, 0xab5a, 1},
+		{0xab60, 0xab67, 1},
 		{0xab70, 0xabbf, 1},
 		{0xfb00, 0xfb06, 1},
 		{0xfb13, 0xfb17, 1},
@@ -901,6 +915,9 @@
 		{0x16b40, 0x16b43, 1},
 		{0x16f93, 0x16f9f, 1},
 		{0x16fe0, 0x16fe1, 1},
+		{0x16fe3, 0x1e137, 29012},
+		{0x1e138, 0x1e13d, 1},
+		{0x1e94b, 0x1e94b, 1},
 	},
 }
 
@@ -1015,15 +1032,11 @@
 		{0x0e32, 0x0e33, 1},
 		{0x0e40, 0x0e45, 1},
 		{0x0e81, 0x0e82, 1},
-		{0x0e84, 0x0e87, 3},
-		{0x0e88, 0x0e8a, 2},
-		{0x0e8d, 0x0e94, 7},
-		{0x0e95, 0x0e97, 1},
-		{0x0e99, 0x0e9f, 1},
-		{0x0ea1, 0x0ea3, 1},
+		{0x0e84, 0x0e86, 2},
+		{0x0e87, 0x0e8a, 1},
+		{0x0e8c, 0x0ea3, 1},
 		{0x0ea5, 0x0ea7, 2},
-		{0x0eaa, 0x0eab, 1},
-		{0x0ead, 0x0eb0, 1},
+		{0x0ea8, 0x0eb0, 1},
 		{0x0eb2, 0x0eb3, 1},
 		{0x0ebd, 0x0ec0, 3},
 		{0x0ec1, 0x0ec4, 1},
@@ -1093,9 +1106,10 @@
 		{0x1c4d, 0x1c4f, 1},
 		{0x1c5a, 0x1c77, 1},
 		{0x1ce9, 0x1cec, 1},
-		{0x1cee, 0x1cf1, 1},
+		{0x1cee, 0x1cf3, 1},
 		{0x1cf5, 0x1cf6, 1},
-		{0x2135, 0x2138, 1},
+		{0x1cfa, 0x2135, 1083},
+		{0x2136, 0x2138, 1},
 		{0x2d30, 0x2d67, 1},
 		{0x2d80, 0x2d96, 1},
 		{0x2da0, 0x2da6, 1},
@@ -1243,6 +1257,7 @@
 		{0x10f00, 0x10f1c, 1},
 		{0x10f27, 0x10f30, 9},
 		{0x10f31, 0x10f45, 1},
+		{0x10fe0, 0x10ff6, 1},
 		{0x11003, 0x11037, 1},
 		{0x11083, 0x110af, 1},
 		{0x110d0, 0x110e8, 1},
@@ -1271,7 +1286,8 @@
 		{0x1135d, 0x11361, 1},
 		{0x11400, 0x11434, 1},
 		{0x11447, 0x1144a, 1},
-		{0x11480, 0x114af, 1},
+		{0x1145f, 0x11480, 33},
+		{0x11481, 0x114af, 1},
 		{0x114c4, 0x114c5, 1},
 		{0x114c7, 0x11580, 185},
 		{0x11581, 0x115ae, 1},
@@ -1279,13 +1295,17 @@
 		{0x11600, 0x1162f, 1},
 		{0x11644, 0x11680, 60},
 		{0x11681, 0x116aa, 1},
-		{0x11700, 0x1171a, 1},
+		{0x116b8, 0x11700, 72},
+		{0x11701, 0x1171a, 1},
 		{0x11800, 0x1182b, 1},
-		{0x118ff, 0x11a00, 257},
-		{0x11a0b, 0x11a32, 1},
+		{0x118ff, 0x119a0, 161},
+		{0x119a1, 0x119a7, 1},
+		{0x119aa, 0x119d0, 1},
+		{0x119e1, 0x119e3, 2},
+		{0x11a00, 0x11a0b, 11},
+		{0x11a0c, 0x11a32, 1},
 		{0x11a3a, 0x11a50, 22},
-		{0x11a5c, 0x11a83, 1},
-		{0x11a86, 0x11a89, 1},
+		{0x11a5c, 0x11a89, 1},
 		{0x11a9d, 0x11ac0, 35},
 		{0x11ac1, 0x11af8, 1},
 		{0x11c00, 0x11c08, 1},
@@ -1311,16 +1331,21 @@
 		{0x16b00, 0x16b2f, 1},
 		{0x16b63, 0x16b77, 1},
 		{0x16b7d, 0x16b8f, 1},
-		{0x16f00, 0x16f44, 1},
+		{0x16f00, 0x16f4a, 1},
 		{0x16f50, 0x17000, 176},
-		{0x17001, 0x187f1, 1},
+		{0x17001, 0x187f7, 1},
 		{0x18800, 0x18af2, 1},
 		{0x1b000, 0x1b11e, 1},
+		{0x1b150, 0x1b152, 1},
+		{0x1b164, 0x1b167, 1},
 		{0x1b170, 0x1b2fb, 1},
 		{0x1bc00, 0x1bc6a, 1},
 		{0x1bc70, 0x1bc7c, 1},
 		{0x1bc80, 0x1bc88, 1},
 		{0x1bc90, 0x1bc99, 1},
+		{0x1e100, 0x1e12c, 1},
+		{0x1e14e, 0x1e2c0, 370},
+		{0x1e2c1, 0x1e2eb, 1},
 		{0x1e800, 0x1e8c4, 1},
 		{0x1ee00, 0x1ee03, 1},
 		{0x1ee05, 0x1ee1f, 1},
@@ -1473,7 +1498,9 @@
 		{0xa796, 0xa7aa, 2},
 		{0xa7ab, 0xa7ae, 1},
 		{0xa7b0, 0xa7b4, 1},
-		{0xa7b6, 0xa7b8, 2},
+		{0xa7b6, 0xa7be, 2},
+		{0xa7c2, 0xa7c4, 2},
+		{0xa7c5, 0xa7c6, 1},
 		{0xff21, 0xff3a, 1},
 	},
 	R32: []Range32{
@@ -1610,8 +1637,7 @@
 		{0x0e35, 0x0e3a, 1},
 		{0x0e47, 0x0e4e, 1},
 		{0x0eb1, 0x0eb4, 3},
-		{0x0eb5, 0x0eb9, 1},
-		{0x0ebb, 0x0ebc, 1},
+		{0x0eb5, 0x0ebc, 1},
 		{0x0ec8, 0x0ecd, 1},
 		{0x0f18, 0x0f19, 1},
 		{0x0f35, 0x0f39, 2},
@@ -1656,8 +1682,7 @@
 		{0x1c24, 0x1c37, 1},
 		{0x1cd0, 0x1cd2, 1},
 		{0x1cd4, 0x1ce8, 1},
-		{0x1ced, 0x1cf2, 5},
-		{0x1cf3, 0x1cf4, 1},
+		{0x1ced, 0x1cf4, 7},
 		{0x1cf7, 0x1cf9, 1},
 		{0x1dc0, 0x1df9, 1},
 		{0x1dfb, 0x1dff, 1},
@@ -1744,7 +1769,10 @@
 		{0x116ab, 0x116b7, 1},
 		{0x1171d, 0x1172b, 1},
 		{0x1182c, 0x1183a, 1},
-		{0x11a01, 0x11a0a, 1},
+		{0x119d1, 0x119d7, 1},
+		{0x119da, 0x119e0, 1},
+		{0x119e4, 0x11a01, 29},
+		{0x11a02, 0x11a0a, 1},
 		{0x11a33, 0x11a39, 1},
 		{0x11a3b, 0x11a3e, 1},
 		{0x11a47, 0x11a51, 10},
@@ -1765,7 +1793,8 @@
 		{0x11ef3, 0x11ef6, 1},
 		{0x16af0, 0x16af4, 1},
 		{0x16b30, 0x16b36, 1},
-		{0x16f51, 0x16f7e, 1},
+		{0x16f4f, 0x16f51, 2},
+		{0x16f52, 0x16f87, 1},
 		{0x16f8f, 0x16f92, 1},
 		{0x1bc9d, 0x1bc9e, 1},
 		{0x1d165, 0x1d169, 1},
@@ -1784,6 +1813,8 @@
 		{0x1e01b, 0x1e021, 1},
 		{0x1e023, 0x1e024, 1},
 		{0x1e026, 0x1e02a, 1},
+		{0x1e130, 0x1e136, 1},
+		{0x1e2ec, 0x1e2ef, 1},
 		{0x1e8d0, 0x1e8d6, 1},
 		{0x1e944, 0x1e94a, 1},
 		{0xe0100, 0xe01ef, 1},
@@ -1868,8 +1899,7 @@
 		{0x1bf3, 0x1c24, 49},
 		{0x1c25, 0x1c2b, 1},
 		{0x1c34, 0x1c35, 1},
-		{0x1ce1, 0x1cf2, 17},
-		{0x1cf3, 0x1cf7, 4},
+		{0x1ce1, 0x1cf7, 22},
 		{0x302e, 0x302f, 1},
 		{0xa823, 0xa824, 1},
 		{0xa827, 0xa880, 89},
@@ -1878,8 +1908,8 @@
 		{0xa952, 0xa953, 1},
 		{0xa983, 0xa9b4, 49},
 		{0xa9b5, 0xa9ba, 5},
-		{0xa9bb, 0xa9bd, 2},
-		{0xa9be, 0xa9c0, 1},
+		{0xa9bb, 0xa9be, 3},
+		{0xa9bf, 0xa9c0, 1},
 		{0xaa2f, 0xaa30, 1},
 		{0xaa33, 0xaa34, 1},
 		{0xaa4d, 0xaa7b, 46},
@@ -1927,7 +1957,10 @@
 		{0x116b6, 0x11720, 106},
 		{0x11721, 0x11726, 5},
 		{0x1182c, 0x1182e, 1},
-		{0x11838, 0x11a39, 513},
+		{0x11838, 0x119d1, 409},
+		{0x119d2, 0x119d3, 1},
+		{0x119dc, 0x119df, 1},
+		{0x119e4, 0x11a39, 85},
 		{0x11a57, 0x11a58, 1},
 		{0x11a97, 0x11c2f, 408},
 		{0x11c3e, 0x11ca9, 107},
@@ -1936,7 +1969,7 @@
 		{0x11d93, 0x11d94, 1},
 		{0x11d96, 0x11ef5, 351},
 		{0x11ef6, 0x16f51, 20571},
-		{0x16f52, 0x16f7e, 1},
+		{0x16f52, 0x16f87, 1},
 		{0x1d165, 0x1d166, 1},
 		{0x1d16d, 0x1d172, 1},
 	},
@@ -2029,8 +2062,7 @@
 		{0x0e34, 0x0e3a, 1},
 		{0x0e47, 0x0e4e, 1},
 		{0x0eb1, 0x0eb4, 3},
-		{0x0eb5, 0x0eb9, 1},
-		{0x0ebb, 0x0ebc, 1},
+		{0x0eb5, 0x0ebc, 1},
 		{0x0ec8, 0x0ecd, 1},
 		{0x0f18, 0x0f19, 1},
 		{0x0f35, 0x0f39, 2},
@@ -2119,8 +2151,9 @@
 		{0xa980, 0xa982, 1},
 		{0xa9b3, 0xa9b6, 3},
 		{0xa9b7, 0xa9b9, 1},
-		{0xa9bc, 0xa9e5, 41},
-		{0xaa29, 0xaa2e, 1},
+		{0xa9bc, 0xa9bd, 1},
+		{0xa9e5, 0xaa29, 68},
+		{0xaa2a, 0xaa2e, 1},
 		{0xaa31, 0xaa32, 1},
 		{0xaa35, 0xaa36, 1},
 		{0xaa43, 0xaa4c, 9},
@@ -2190,7 +2223,10 @@
 		{0x11727, 0x1172b, 1},
 		{0x1182f, 0x11837, 1},
 		{0x11839, 0x1183a, 1},
-		{0x11a01, 0x11a0a, 1},
+		{0x119d4, 0x119d7, 1},
+		{0x119da, 0x119db, 1},
+		{0x119e0, 0x11a01, 33},
+		{0x11a02, 0x11a0a, 1},
 		{0x11a33, 0x11a38, 1},
 		{0x11a3b, 0x11a3e, 1},
 		{0x11a47, 0x11a51, 10},
@@ -2215,7 +2251,8 @@
 		{0x11ef4, 0x16af0, 19452},
 		{0x16af1, 0x16af4, 1},
 		{0x16b30, 0x16b36, 1},
-		{0x16f8f, 0x16f92, 1},
+		{0x16f4f, 0x16f8f, 64},
+		{0x16f90, 0x16f92, 1},
 		{0x1bc9d, 0x1bc9e, 1},
 		{0x1d167, 0x1d169, 1},
 		{0x1d17b, 0x1d182, 1},
@@ -2232,6 +2269,8 @@
 		{0x1e01b, 0x1e021, 1},
 		{0x1e023, 0x1e024, 1},
 		{0x1e026, 0x1e02a, 1},
+		{0x1e130, 0x1e136, 1},
+		{0x1e2ec, 0x1e2ef, 1},
 		{0x1e8d0, 0x1e8d6, 1},
 		{0x1e944, 0x1e94a, 1},
 		{0xe0100, 0xe01ef, 1},
@@ -2351,6 +2390,7 @@
 		{0x11c50, 0x11c6c, 1},
 		{0x11d50, 0x11d59, 1},
 		{0x11da0, 0x11da9, 1},
+		{0x11fc0, 0x11fd4, 1},
 		{0x12400, 0x1246e, 1},
 		{0x16a60, 0x16a69, 1},
 		{0x16b50, 0x16b59, 1},
@@ -2359,11 +2399,15 @@
 		{0x1d2e0, 0x1d2f3, 1},
 		{0x1d360, 0x1d378, 1},
 		{0x1d7ce, 0x1d7ff, 1},
+		{0x1e140, 0x1e149, 1},
+		{0x1e2f0, 0x1e2f9, 1},
 		{0x1e8c7, 0x1e8cf, 1},
 		{0x1e950, 0x1e959, 1},
 		{0x1ec71, 0x1ecab, 1},
 		{0x1ecad, 0x1ecaf, 1},
 		{0x1ecb1, 0x1ecb4, 1},
+		{0x1ed01, 0x1ed2d, 1},
+		{0x1ed2f, 0x1ed3d, 1},
 		{0x1f100, 0x1f10c, 1},
 	},
 	LatinOffset: 4,
@@ -2429,6 +2473,8 @@
 		{0x16a60, 0x16a69, 1},
 		{0x16b50, 0x16b59, 1},
 		{0x1d7ce, 0x1d7ff, 1},
+		{0x1e140, 0x1e149, 1},
+		{0x1e2f0, 0x1e2f9, 1},
 		{0x1e950, 0x1e959, 1},
 	},
 	LatinOffset: 1,
@@ -2513,6 +2559,7 @@
 		{0x1173a, 0x1173b, 1},
 		{0x118ea, 0x118f2, 1},
 		{0x11c5a, 0x11c6c, 1},
+		{0x11fc0, 0x11fd4, 1},
 		{0x16b5b, 0x16b61, 1},
 		{0x16e80, 0x16e96, 1},
 		{0x1d2e0, 0x1d2f3, 1},
@@ -2521,6 +2568,8 @@
 		{0x1ec71, 0x1ecab, 1},
 		{0x1ecad, 0x1ecaf, 1},
 		{0x1ecb1, 0x1ecb4, 1},
+		{0x1ed01, 0x1ed2d, 1},
+		{0x1ed2f, 0x1ed3d, 1},
 		{0x1f100, 0x1f10c, 1},
 	},
 	LatinOffset: 3,
@@ -2557,10 +2606,11 @@
 		{0x085e, 0x0964, 262},
 		{0x0965, 0x0970, 11},
 		{0x09fd, 0x0a76, 121},
-		{0x0af0, 0x0c84, 404},
-		{0x0df4, 0x0e4f, 91},
-		{0x0e5a, 0x0e5b, 1},
-		{0x0f04, 0x0f12, 1},
+		{0x0af0, 0x0c77, 391},
+		{0x0c84, 0x0df4, 368},
+		{0x0e4f, 0x0e5a, 11},
+		{0x0e5b, 0x0f04, 169},
+		{0x0f05, 0x0f12, 1},
 		{0x0f14, 0x0f3a, 38},
 		{0x0f3b, 0x0f3d, 1},
 		{0x0f85, 0x0fd0, 75},
@@ -2569,10 +2619,9 @@
 		{0x104a, 0x104f, 1},
 		{0x10fb, 0x1360, 613},
 		{0x1361, 0x1368, 1},
-		{0x1400, 0x166d, 621},
-		{0x166e, 0x169b, 45},
-		{0x169c, 0x16eb, 79},
-		{0x16ec, 0x16ed, 1},
+		{0x1400, 0x166e, 622},
+		{0x169b, 0x169c, 1},
+		{0x16eb, 0x16ed, 1},
 		{0x1735, 0x1736, 1},
 		{0x17d4, 0x17d6, 1},
 		{0x17d8, 0x17da, 1},
@@ -2605,7 +2654,7 @@
 		{0x2cfe, 0x2cff, 1},
 		{0x2d70, 0x2e00, 144},
 		{0x2e01, 0x2e2e, 1},
-		{0x2e30, 0x2e4e, 1},
+		{0x2e30, 0x2e4f, 1},
 		{0x3001, 0x3003, 1},
 		{0x3008, 0x3011, 1},
 		{0x3014, 0x301f, 1},
@@ -2670,21 +2719,22 @@
 		{0x11641, 0x11643, 1},
 		{0x11660, 0x1166c, 1},
 		{0x1173c, 0x1173e, 1},
-		{0x1183b, 0x11a3f, 516},
-		{0x11a40, 0x11a46, 1},
+		{0x1183b, 0x119e2, 423},
+		{0x11a3f, 0x11a46, 1},
 		{0x11a9a, 0x11a9c, 1},
 		{0x11a9e, 0x11aa2, 1},
 		{0x11c41, 0x11c45, 1},
 		{0x11c70, 0x11c71, 1},
 		{0x11ef7, 0x11ef8, 1},
-		{0x12470, 0x12474, 1},
+		{0x11fff, 0x12470, 1137},
+		{0x12471, 0x12474, 1},
 		{0x16a6e, 0x16a6f, 1},
 		{0x16af5, 0x16b37, 66},
 		{0x16b38, 0x16b3b, 1},
 		{0x16b44, 0x16e97, 851},
 		{0x16e98, 0x16e9a, 1},
-		{0x1bc9f, 0x1da87, 7656},
-		{0x1da88, 0x1da8b, 1},
+		{0x16fe2, 0x1bc9f, 19645},
+		{0x1da87, 0x1da8b, 1},
 		{0x1e95e, 0x1e95f, 1},
 	},
 	LatinOffset: 11,
@@ -2793,18 +2843,19 @@
 		{0x085e, 0x0964, 262},
 		{0x0965, 0x0970, 11},
 		{0x09fd, 0x0a76, 121},
-		{0x0af0, 0x0c84, 404},
-		{0x0df4, 0x0e4f, 91},
-		{0x0e5a, 0x0e5b, 1},
-		{0x0f04, 0x0f12, 1},
+		{0x0af0, 0x0c77, 391},
+		{0x0c84, 0x0df4, 368},
+		{0x0e4f, 0x0e5a, 11},
+		{0x0e5b, 0x0f04, 169},
+		{0x0f05, 0x0f12, 1},
 		{0x0f14, 0x0f85, 113},
 		{0x0fd0, 0x0fd4, 1},
 		{0x0fd9, 0x0fda, 1},
 		{0x104a, 0x104f, 1},
 		{0x10fb, 0x1360, 613},
 		{0x1361, 0x1368, 1},
-		{0x166d, 0x166e, 1},
-		{0x16eb, 0x16ed, 1},
+		{0x166e, 0x16eb, 125},
+		{0x16ec, 0x16ed, 1},
 		{0x1735, 0x1736, 1},
 		{0x17d4, 0x17d6, 1},
 		{0x17d8, 0x17da, 1},
@@ -2842,7 +2893,7 @@
 		{0x2e30, 0x2e39, 1},
 		{0x2e3c, 0x2e3f, 1},
 		{0x2e41, 0x2e43, 2},
-		{0x2e44, 0x2e4e, 1},
+		{0x2e44, 0x2e4f, 1},
 		{0x3001, 0x3003, 1},
 		{0x303d, 0x30fb, 190},
 		{0xa4fe, 0xa4ff, 1},
@@ -2906,21 +2957,22 @@
 		{0x11641, 0x11643, 1},
 		{0x11660, 0x1166c, 1},
 		{0x1173c, 0x1173e, 1},
-		{0x1183b, 0x11a3f, 516},
-		{0x11a40, 0x11a46, 1},
+		{0x1183b, 0x119e2, 423},
+		{0x11a3f, 0x11a46, 1},
 		{0x11a9a, 0x11a9c, 1},
 		{0x11a9e, 0x11aa2, 1},
 		{0x11c41, 0x11c45, 1},
 		{0x11c70, 0x11c71, 1},
 		{0x11ef7, 0x11ef8, 1},
-		{0x12470, 0x12474, 1},
+		{0x11fff, 0x12470, 1137},
+		{0x12471, 0x12474, 1},
 		{0x16a6e, 0x16a6f, 1},
 		{0x16af5, 0x16b37, 66},
 		{0x16b38, 0x16b3b, 1},
 		{0x16b44, 0x16e97, 851},
 		{0x16e98, 0x16e9a, 1},
-		{0x1bc9f, 0x1da87, 7656},
-		{0x1da88, 0x1da8b, 1},
+		{0x16fe2, 0x1bc9f, 19645},
+		{0x1da87, 0x1da8b, 1},
 		{0x1e95e, 0x1e95f, 1},
 	},
 	LatinOffset: 8,
@@ -3001,8 +3053,9 @@
 		{0x0fd5, 0x0fd8, 1},
 		{0x109e, 0x109f, 1},
 		{0x1390, 0x1399, 1},
-		{0x17db, 0x1940, 357},
-		{0x19de, 0x19ff, 1},
+		{0x166d, 0x17db, 366},
+		{0x1940, 0x19de, 158},
+		{0x19df, 0x19ff, 1},
 		{0x1b61, 0x1b6a, 1},
 		{0x1b74, 0x1b7c, 1},
 		{0x1fbd, 0x1fbf, 2},
@@ -3041,8 +3094,7 @@
 		{0x29dc, 0x29fb, 1},
 		{0x29fe, 0x2b73, 1},
 		{0x2b76, 0x2b95, 1},
-		{0x2b98, 0x2bc8, 1},
-		{0x2bca, 0x2bfe, 1},
+		{0x2b98, 0x2bff, 1},
 		{0x2ce5, 0x2cea, 1},
 		{0x2e80, 0x2e99, 1},
 		{0x2e9b, 0x2ef3, 1},
@@ -3094,6 +3146,7 @@
 		{0x101d1, 0x101fc, 1},
 		{0x10877, 0x10878, 1},
 		{0x10ac8, 0x1173f, 3191},
+		{0x11fd5, 0x11ff1, 1},
 		{0x16b3c, 0x16b3f, 1},
 		{0x16b45, 0x1bc9c, 20823},
 		{0x1d000, 0x1d0f5, 1},
@@ -3116,41 +3169,46 @@
 		{0x1da6d, 0x1da74, 1},
 		{0x1da76, 0x1da83, 1},
 		{0x1da85, 0x1da86, 1},
+		{0x1e14f, 0x1e2ff, 432},
 		{0x1ecac, 0x1ecb0, 4},
-		{0x1eef0, 0x1eef1, 1},
-		{0x1f000, 0x1f02b, 1},
+		{0x1ed2e, 0x1eef0, 450},
+		{0x1eef1, 0x1f000, 271},
+		{0x1f001, 0x1f02b, 1},
 		{0x1f030, 0x1f093, 1},
 		{0x1f0a0, 0x1f0ae, 1},
 		{0x1f0b1, 0x1f0bf, 1},
 		{0x1f0c1, 0x1f0cf, 1},
 		{0x1f0d1, 0x1f0f5, 1},
-		{0x1f110, 0x1f16b, 1},
+		{0x1f110, 0x1f16c, 1},
 		{0x1f170, 0x1f1ac, 1},
 		{0x1f1e6, 0x1f202, 1},
 		{0x1f210, 0x1f23b, 1},
 		{0x1f240, 0x1f248, 1},
 		{0x1f250, 0x1f251, 1},
 		{0x1f260, 0x1f265, 1},
-		{0x1f300, 0x1f6d4, 1},
+		{0x1f300, 0x1f6d5, 1},
 		{0x1f6e0, 0x1f6ec, 1},
-		{0x1f6f0, 0x1f6f9, 1},
+		{0x1f6f0, 0x1f6fa, 1},
 		{0x1f700, 0x1f773, 1},
 		{0x1f780, 0x1f7d8, 1},
+		{0x1f7e0, 0x1f7eb, 1},
 		{0x1f800, 0x1f80b, 1},
 		{0x1f810, 0x1f847, 1},
 		{0x1f850, 0x1f859, 1},
 		{0x1f860, 0x1f887, 1},
 		{0x1f890, 0x1f8ad, 1},
 		{0x1f900, 0x1f90b, 1},
-		{0x1f910, 0x1f93e, 1},
-		{0x1f940, 0x1f970, 1},
+		{0x1f90d, 0x1f971, 1},
 		{0x1f973, 0x1f976, 1},
-		{0x1f97a, 0x1f97c, 2},
-		{0x1f97d, 0x1f9a2, 1},
-		{0x1f9b0, 0x1f9b9, 1},
-		{0x1f9c0, 0x1f9c2, 1},
-		{0x1f9d0, 0x1f9ff, 1},
+		{0x1f97a, 0x1f9a2, 1},
+		{0x1f9a5, 0x1f9aa, 1},
+		{0x1f9ae, 0x1f9ca, 1},
+		{0x1f9cd, 0x1fa53, 1},
 		{0x1fa60, 0x1fa6d, 1},
+		{0x1fa70, 0x1fa73, 1},
+		{0x1fa78, 0x1fa7a, 1},
+		{0x1fa80, 0x1fa82, 1},
+		{0x1fa90, 0x1fa95, 1},
 	},
 	LatinOffset: 10,
 }
@@ -3172,7 +3230,8 @@
 		{0xffe5, 0xffe6, 1},
 	},
 	R32: []Range32{
-		{0x1ecb0, 0x1ecb0, 1},
+		{0x11fdd, 0x11fe0, 1},
+		{0x1e2ff, 0x1ecb0, 2481},
 	},
 	LatinOffset: 2,
 }
@@ -3290,8 +3349,8 @@
 		{0x0fd5, 0x0fd8, 1},
 		{0x109e, 0x109f, 1},
 		{0x1390, 0x1399, 1},
-		{0x1940, 0x19de, 158},
-		{0x19df, 0x19ff, 1},
+		{0x166d, 0x1940, 723},
+		{0x19de, 0x19ff, 1},
 		{0x1b61, 0x1b6a, 1},
 		{0x1b74, 0x1b7c, 1},
 		{0x2100, 0x2101, 1},
@@ -3335,8 +3394,7 @@
 		{0x2b45, 0x2b46, 1},
 		{0x2b4d, 0x2b73, 1},
 		{0x2b76, 0x2b95, 1},
-		{0x2b98, 0x2bc8, 1},
-		{0x2bca, 0x2bfe, 1},
+		{0x2b98, 0x2bff, 1},
 		{0x2ce5, 0x2cea, 1},
 		{0x2e80, 0x2e99, 1},
 		{0x2e9b, 0x2ef3, 1},
@@ -3376,6 +3434,8 @@
 		{0x101d1, 0x101fc, 1},
 		{0x10877, 0x10878, 1},
 		{0x10ac8, 0x1173f, 3191},
+		{0x11fd5, 0x11fdc, 1},
+		{0x11fe1, 0x11ff1, 1},
 		{0x16b3c, 0x16b3f, 1},
 		{0x16b45, 0x1bc9c, 20823},
 		{0x1d000, 0x1d0f5, 1},
@@ -3393,14 +3453,15 @@
 		{0x1da6d, 0x1da74, 1},
 		{0x1da76, 0x1da83, 1},
 		{0x1da85, 0x1da86, 1},
-		{0x1ecac, 0x1f000, 852},
+		{0x1e14f, 0x1ecac, 2909},
+		{0x1ed2e, 0x1f000, 722},
 		{0x1f001, 0x1f02b, 1},
 		{0x1f030, 0x1f093, 1},
 		{0x1f0a0, 0x1f0ae, 1},
 		{0x1f0b1, 0x1f0bf, 1},
 		{0x1f0c1, 0x1f0cf, 1},
 		{0x1f0d1, 0x1f0f5, 1},
-		{0x1f110, 0x1f16b, 1},
+		{0x1f110, 0x1f16c, 1},
 		{0x1f170, 0x1f1ac, 1},
 		{0x1f1e6, 0x1f202, 1},
 		{0x1f210, 0x1f23b, 1},
@@ -3408,26 +3469,29 @@
 		{0x1f250, 0x1f251, 1},
 		{0x1f260, 0x1f265, 1},
 		{0x1f300, 0x1f3fa, 1},
-		{0x1f400, 0x1f6d4, 1},
+		{0x1f400, 0x1f6d5, 1},
 		{0x1f6e0, 0x1f6ec, 1},
-		{0x1f6f0, 0x1f6f9, 1},
+		{0x1f6f0, 0x1f6fa, 1},
 		{0x1f700, 0x1f773, 1},
 		{0x1f780, 0x1f7d8, 1},
+		{0x1f7e0, 0x1f7eb, 1},
 		{0x1f800, 0x1f80b, 1},
 		{0x1f810, 0x1f847, 1},
 		{0x1f850, 0x1f859, 1},
 		{0x1f860, 0x1f887, 1},
 		{0x1f890, 0x1f8ad, 1},
 		{0x1f900, 0x1f90b, 1},
-		{0x1f910, 0x1f93e, 1},
-		{0x1f940, 0x1f970, 1},
+		{0x1f90d, 0x1f971, 1},
 		{0x1f973, 0x1f976, 1},
-		{0x1f97a, 0x1f97c, 2},
-		{0x1f97d, 0x1f9a2, 1},
-		{0x1f9b0, 0x1f9b9, 1},
-		{0x1f9c0, 0x1f9c2, 1},
-		{0x1f9d0, 0x1f9ff, 1},
+		{0x1f97a, 0x1f9a2, 1},
+		{0x1f9a5, 0x1f9aa, 1},
+		{0x1f9ae, 0x1f9ca, 1},
+		{0x1f9cd, 0x1fa53, 1},
 		{0x1fa60, 0x1fa6d, 1},
+		{0x1fa70, 0x1fa73, 1},
+		{0x1fa78, 0x1fa7a, 1},
+		{0x1fa80, 0x1fa82, 1},
+		{0x1fa90, 0x1fa95, 1},
 	},
 	LatinOffset: 2,
 }
@@ -3554,6 +3618,7 @@
 	"Duployan":               Duployan,
 	"Egyptian_Hieroglyphs":   Egyptian_Hieroglyphs,
 	"Elbasan":                Elbasan,
+	"Elymaic":                Elymaic,
 	"Ethiopic":               Ethiopic,
 	"Georgian":               Georgian,
 	"Glagolitic":             Glagolitic,
@@ -3611,10 +3676,12 @@
 	"Multani":                Multani,
 	"Myanmar":                Myanmar,
 	"Nabataean":              Nabataean,
+	"Nandinagari":            Nandinagari,
 	"New_Tai_Lue":            New_Tai_Lue,
 	"Newa":                   Newa,
 	"Nko":                    Nko,
 	"Nushu":                  Nushu,
+	"Nyiakeng_Puachue_Hmong": Nyiakeng_Puachue_Hmong,
 	"Ogham":                  Ogham,
 	"Ol_Chiki":               Ol_Chiki,
 	"Old_Hungarian":          Old_Hungarian,
@@ -3665,6 +3732,7 @@
 	"Tirhuta":                Tirhuta,
 	"Ugaritic":               Ugaritic,
 	"Vai":                    Vai,
+	"Wancho":                 Wancho,
 	"Warang_Citi":            Warang_Citi,
 	"Yi":                     Yi,
 	"Zanabazar_Square":       Zanabazar_Square,
@@ -3673,7 +3741,7 @@
 var _Adlam = &RangeTable{
 	R16: []Range16{},
 	R32: []Range32{
-		{0x1e900, 0x1e94a, 1},
+		{0x1e900, 0x1e94b, 1},
 		{0x1e950, 0x1e959, 1},
 		{0x1e95e, 0x1e95f, 1},
 	},
@@ -3939,7 +4007,8 @@
 		{0x1cea, 0x1cec, 1},
 		{0x1cee, 0x1cf3, 1},
 		{0x1cf5, 0x1cf7, 1},
-		{0x2000, 0x200b, 1},
+		{0x1cfa, 0x2000, 774},
+		{0x2001, 0x200b, 1},
 		{0x200e, 0x2064, 1},
 		{0x2066, 0x2070, 1},
 		{0x2074, 0x207e, 1},
@@ -3956,9 +4025,8 @@
 		{0x2460, 0x27ff, 1},
 		{0x2900, 0x2b73, 1},
 		{0x2b76, 0x2b95, 1},
-		{0x2b98, 0x2bc8, 1},
-		{0x2bca, 0x2bfe, 1},
-		{0x2e00, 0x2e4e, 1},
+		{0x2b98, 0x2bff, 1},
+		{0x2e00, 0x2e4f, 1},
 		{0x2ff0, 0x2ffb, 1},
 		{0x3000, 0x3004, 1},
 		{0x3006, 0x3008, 2},
@@ -4001,6 +4069,7 @@
 		{0x10190, 0x1019b, 1},
 		{0x101d0, 0x101fc, 1},
 		{0x102e1, 0x102fb, 1},
+		{0x16fe2, 0x16fe3, 1},
 		{0x1bca0, 0x1bca3, 1},
 		{0x1d000, 0x1d0f5, 1},
 		{0x1d100, 0x1d126, 1},
@@ -4034,6 +4103,7 @@
 		{0x1d6a8, 0x1d7cb, 1},
 		{0x1d7ce, 0x1d7ff, 1},
 		{0x1ec71, 0x1ecb4, 1},
+		{0x1ed01, 0x1ed3d, 1},
 		{0x1f000, 0x1f02b, 1},
 		{0x1f030, 0x1f093, 1},
 		{0x1f0a0, 0x1f0ae, 1},
@@ -4041,7 +4111,7 @@
 		{0x1f0c1, 0x1f0cf, 1},
 		{0x1f0d1, 0x1f0f5, 1},
 		{0x1f100, 0x1f10c, 1},
-		{0x1f110, 0x1f16b, 1},
+		{0x1f110, 0x1f16c, 1},
 		{0x1f170, 0x1f1ac, 1},
 		{0x1f1e6, 0x1f1ff, 1},
 		{0x1f201, 0x1f202, 1},
@@ -4049,26 +4119,29 @@
 		{0x1f240, 0x1f248, 1},
 		{0x1f250, 0x1f251, 1},
 		{0x1f260, 0x1f265, 1},
-		{0x1f300, 0x1f6d4, 1},
+		{0x1f300, 0x1f6d5, 1},
 		{0x1f6e0, 0x1f6ec, 1},
-		{0x1f6f0, 0x1f6f9, 1},
+		{0x1f6f0, 0x1f6fa, 1},
 		{0x1f700, 0x1f773, 1},
 		{0x1f780, 0x1f7d8, 1},
+		{0x1f7e0, 0x1f7eb, 1},
 		{0x1f800, 0x1f80b, 1},
 		{0x1f810, 0x1f847, 1},
 		{0x1f850, 0x1f859, 1},
 		{0x1f860, 0x1f887, 1},
 		{0x1f890, 0x1f8ad, 1},
 		{0x1f900, 0x1f90b, 1},
-		{0x1f910, 0x1f93e, 1},
-		{0x1f940, 0x1f970, 1},
+		{0x1f90d, 0x1f971, 1},
 		{0x1f973, 0x1f976, 1},
-		{0x1f97a, 0x1f97c, 2},
-		{0x1f97d, 0x1f9a2, 1},
-		{0x1f9b0, 0x1f9b9, 1},
-		{0x1f9c0, 0x1f9c2, 1},
-		{0x1f9d0, 0x1f9ff, 1},
+		{0x1f97a, 0x1f9a2, 1},
+		{0x1f9a5, 0x1f9aa, 1},
+		{0x1f9ae, 0x1f9ca, 1},
+		{0x1f9cd, 0x1fa53, 1},
 		{0x1fa60, 0x1fa6d, 1},
+		{0x1fa70, 0x1fa73, 1},
+		{0x1fa78, 0x1fa7a, 1},
+		{0x1fa80, 0x1fa82, 1},
+		{0x1fa90, 0x1fa95, 1},
 		{0xe0001, 0xe0020, 31},
 		{0xe0021, 0xe007f, 1},
 	},
@@ -4126,7 +4199,7 @@
 var _Devanagari = &RangeTable{
 	R16: []Range16{
 		{0x0900, 0x0950, 1},
-		{0x0953, 0x0963, 1},
+		{0x0955, 0x0963, 1},
 		{0x0966, 0x097f, 1},
 		{0xa8e0, 0xa8ff, 1},
 	},
@@ -4154,6 +4227,7 @@
 	R16: []Range16{},
 	R32: []Range32{
 		{0x13000, 0x1342e, 1},
+		{0x13430, 0x13438, 1},
 	},
 }
 
@@ -4164,6 +4238,13 @@
 	},
 }
 
+var _Elymaic = &RangeTable{
+	R16: []Range16{},
+	R32: []Range32{
+		{0x10fe0, 0x10ff6, 1},
+	},
+}
+
 var _Ethiopic = &RangeTable{
 	R16: []Range16{
 		{0x1200, 0x1248, 1},
@@ -4432,6 +4513,7 @@
 	},
 	R32: []Range32{
 		{0x1b001, 0x1b11e, 1},
+		{0x1b150, 0x1b152, 1},
 		{0x1f200, 0x1f200, 1},
 	},
 }
@@ -4450,8 +4532,8 @@
 		{0x0485, 0x0486, 1},
 		{0x064b, 0x0655, 1},
 		{0x0670, 0x0951, 737},
-		{0x0952, 0x1ab0, 4446},
-		{0x1ab1, 0x1abe, 1},
+		{0x0952, 0x0954, 1},
+		{0x1ab0, 0x1abe, 1},
 		{0x1cd0, 0x1cd2, 1},
 		{0x1cd4, 0x1ce0, 1},
 		{0x1ce2, 0x1ce8, 1},
@@ -4538,7 +4620,8 @@
 		{0xff71, 0xff9d, 1},
 	},
 	R32: []Range32{
-		{0x1b000, 0x1b000, 1},
+		{0x1b000, 0x1b164, 356},
+		{0x1b165, 0x1b167, 1},
 	},
 }
 
@@ -4591,16 +4674,11 @@
 var _Lao = &RangeTable{
 	R16: []Range16{
 		{0x0e81, 0x0e82, 1},
-		{0x0e84, 0x0e87, 3},
-		{0x0e88, 0x0e8a, 2},
-		{0x0e8d, 0x0e94, 7},
-		{0x0e95, 0x0e97, 1},
-		{0x0e99, 0x0e9f, 1},
-		{0x0ea1, 0x0ea3, 1},
+		{0x0e84, 0x0e86, 2},
+		{0x0e87, 0x0e8a, 1},
+		{0x0e8c, 0x0ea3, 1},
 		{0x0ea5, 0x0ea7, 2},
-		{0x0eaa, 0x0eab, 1},
-		{0x0ead, 0x0eb9, 1},
-		{0x0ebb, 0x0ebd, 1},
+		{0x0ea8, 0x0ebd, 1},
 		{0x0ec0, 0x0ec4, 1},
 		{0x0ec6, 0x0ec8, 2},
 		{0x0ec9, 0x0ecd, 1},
@@ -4631,10 +4709,12 @@
 		{0x2160, 0x2188, 1},
 		{0x2c60, 0x2c7f, 1},
 		{0xa722, 0xa787, 1},
-		{0xa78b, 0xa7b9, 1},
+		{0xa78b, 0xa7bf, 1},
+		{0xa7c2, 0xa7c6, 1},
 		{0xa7f7, 0xa7ff, 1},
 		{0xab30, 0xab5a, 1},
 		{0xab5c, 0xab64, 1},
+		{0xab66, 0xab67, 1},
 		{0xfb00, 0xfb06, 1},
 		{0xff21, 0xff3a, 1},
 		{0xff41, 0xff5a, 1},
@@ -4809,8 +4889,8 @@
 var _Miao = &RangeTable{
 	R16: []Range16{},
 	R32: []Range32{
-		{0x16f00, 0x16f44, 1},
-		{0x16f50, 0x16f7e, 1},
+		{0x16f00, 0x16f4a, 1},
+		{0x16f4f, 0x16f87, 1},
 		{0x16f8f, 0x16f9f, 1},
 	},
 }
@@ -4873,6 +4953,15 @@
 	},
 }
 
+var _Nandinagari = &RangeTable{
+	R16: []Range16{},
+	R32: []Range32{
+		{0x119a0, 0x119a7, 1},
+		{0x119aa, 0x119d7, 1},
+		{0x119da, 0x119e4, 1},
+	},
+}
+
 var _New_Tai_Lue = &RangeTable{
 	R16: []Range16{
 		{0x1980, 0x19ab, 1},
@@ -4887,7 +4976,7 @@
 	R32: []Range32{
 		{0x11400, 0x11459, 1},
 		{0x1145b, 0x1145d, 2},
-		{0x1145e, 0x1145e, 1},
+		{0x1145e, 0x1145f, 1},
 	},
 }
 
@@ -4906,6 +4995,16 @@
 	},
 }
 
+var _Nyiakeng_Puachue_Hmong = &RangeTable{
+	R16: []Range16{},
+	R32: []Range32{
+		{0x1e100, 0x1e12c, 1},
+		{0x1e130, 0x1e13d, 1},
+		{0x1e140, 0x1e149, 1},
+		{0x1e14e, 0x1e14f, 1},
+	},
+}
+
 var _Ogham = &RangeTable{
 	R16: []Range16{
 		{0x1680, 0x169c, 1},
@@ -5159,8 +5258,7 @@
 var _Soyombo = &RangeTable{
 	R16: []Range16{},
 	R32: []Range32{
-		{0x11a50, 0x11a83, 1},
-		{0x11a86, 0x11aa2, 1},
+		{0x11a50, 0x11aa2, 1},
 	},
 }
 
@@ -5228,7 +5326,7 @@
 var _Takri = &RangeTable{
 	R16: []Range16{},
 	R32: []Range32{
-		{0x11680, 0x116b7, 1},
+		{0x11680, 0x116b8, 1},
 		{0x116c0, 0x116c9, 1},
 	},
 }
@@ -5251,13 +5349,17 @@
 		{0x0bd0, 0x0bd7, 7},
 		{0x0be6, 0x0bfa, 1},
 	},
+	R32: []Range32{
+		{0x11fc0, 0x11ff1, 1},
+		{0x11fff, 0x11fff, 1},
+	},
 }
 
 var _Tangut = &RangeTable{
 	R16: []Range16{},
 	R32: []Range32{
 		{0x16fe0, 0x17000, 32},
-		{0x17001, 0x187f1, 1},
+		{0x17001, 0x187f7, 1},
 		{0x18800, 0x18af2, 1},
 	},
 }
@@ -5275,7 +5377,7 @@
 		{0x0c58, 0x0c5a, 1},
 		{0x0c60, 0x0c63, 1},
 		{0x0c66, 0x0c6f, 1},
-		{0x0c78, 0x0c7f, 1},
+		{0x0c77, 0x0c7f, 1},
 	},
 }
 
@@ -5334,6 +5436,14 @@
 	},
 }
 
+var _Wancho = &RangeTable{
+	R16: []Range16{},
+	R32: []Range32{
+		{0x1e2c0, 0x1e2f9, 1},
+		{0x1e2ff, 0x1e2ff, 1},
+	},
+}
+
 var _Warang_Citi = &RangeTable{
 	R16: []Range16{},
 	R32: []Range32{
@@ -5392,6 +5502,7 @@
 	Duployan               = _Duployan               // Duployan is the set of Unicode characters in script Duployan.
 	Egyptian_Hieroglyphs   = _Egyptian_Hieroglyphs   // Egyptian_Hieroglyphs is the set of Unicode characters in script Egyptian_Hieroglyphs.
 	Elbasan                = _Elbasan                // Elbasan is the set of Unicode characters in script Elbasan.
+	Elymaic                = _Elymaic                // Elymaic is the set of Unicode characters in script Elymaic.
 	Ethiopic               = _Ethiopic               // Ethiopic is the set of Unicode characters in script Ethiopic.
 	Georgian               = _Georgian               // Georgian is the set of Unicode characters in script Georgian.
 	Glagolitic             = _Glagolitic             // Glagolitic is the set of Unicode characters in script Glagolitic.
@@ -5449,10 +5560,12 @@
 	Multani                = _Multani                // Multani is the set of Unicode characters in script Multani.
 	Myanmar                = _Myanmar                // Myanmar is the set of Unicode characters in script Myanmar.
 	Nabataean              = _Nabataean              // Nabataean is the set of Unicode characters in script Nabataean.
+	Nandinagari            = _Nandinagari            // Nandinagari is the set of Unicode characters in script Nandinagari.
 	New_Tai_Lue            = _New_Tai_Lue            // New_Tai_Lue is the set of Unicode characters in script New_Tai_Lue.
 	Newa                   = _Newa                   // Newa is the set of Unicode characters in script Newa.
 	Nko                    = _Nko                    // Nko is the set of Unicode characters in script Nko.
 	Nushu                  = _Nushu                  // Nushu is the set of Unicode characters in script Nushu.
+	Nyiakeng_Puachue_Hmong = _Nyiakeng_Puachue_Hmong // Nyiakeng_Puachue_Hmong is the set of Unicode characters in script Nyiakeng_Puachue_Hmong.
 	Ogham                  = _Ogham                  // Ogham is the set of Unicode characters in script Ogham.
 	Ol_Chiki               = _Ol_Chiki               // Ol_Chiki is the set of Unicode characters in script Ol_Chiki.
 	Old_Hungarian          = _Old_Hungarian          // Old_Hungarian is the set of Unicode characters in script Old_Hungarian.
@@ -5503,6 +5616,7 @@
 	Tirhuta                = _Tirhuta                // Tirhuta is the set of Unicode characters in script Tirhuta.
 	Ugaritic               = _Ugaritic               // Ugaritic is the set of Unicode characters in script Ugaritic.
 	Vai                    = _Vai                    // Vai is the set of Unicode characters in script Vai.
+	Wancho                 = _Wancho                 // Wancho is the set of Unicode characters in script Wancho.
 	Warang_Citi            = _Warang_Citi            // Warang_Citi is the set of Unicode characters in script Warang_Citi.
 	Yi                     = _Yi                     // Yi is the set of Unicode characters in script Yi.
 	Zanabazar_Square       = _Zanabazar_Square       // Zanabazar_Square is the set of Unicode characters in script Zanabazar_Square.
@@ -5637,8 +5751,8 @@
 		{0x0d3b, 0x0d3c, 1},
 		{0x0d4d, 0x0e47, 125},
 		{0x0e48, 0x0e4c, 1},
-		{0x0e4e, 0x0ec8, 122},
-		{0x0ec9, 0x0ecc, 1},
+		{0x0e4e, 0x0eba, 108},
+		{0x0ec8, 0x0ecc, 1},
 		{0x0f18, 0x0f19, 1},
 		{0x0f35, 0x0f39, 2},
 		{0x0f3e, 0x0f3f, 1},
@@ -5646,10 +5760,13 @@
 		{0x0f86, 0x0f87, 1},
 		{0x0fc6, 0x1037, 113},
 		{0x1039, 0x103a, 1},
+		{0x1063, 0x1064, 1},
+		{0x1069, 0x106d, 1},
 		{0x1087, 0x108d, 1},
 		{0x108f, 0x109a, 11},
-		{0x109b, 0x17c9, 1838},
-		{0x17ca, 0x17d3, 1},
+		{0x109b, 0x135d, 706},
+		{0x135e, 0x135f, 1},
+		{0x17c9, 0x17d3, 1},
 		{0x17dd, 0x1939, 348},
 		{0x193a, 0x193b, 1},
 		{0x1a75, 0x1a7c, 1},
@@ -5681,11 +5798,12 @@
 		{0xa67c, 0xa67d, 1},
 		{0xa67f, 0xa69c, 29},
 		{0xa69d, 0xa6f0, 83},
-		{0xa6f1, 0xa717, 38},
-		{0xa718, 0xa721, 1},
-		{0xa788, 0xa7f8, 112},
-		{0xa7f9, 0xa8c4, 203},
-		{0xa8e0, 0xa8f1, 1},
+		{0xa6f1, 0xa700, 15},
+		{0xa701, 0xa721, 1},
+		{0xa788, 0xa78a, 1},
+		{0xa7f8, 0xa7f9, 1},
+		{0xa8c4, 0xa8e0, 28},
+		{0xa8e1, 0xa8f1, 1},
 		{0xa92b, 0xa92e, 1},
 		{0xa953, 0xa9b3, 96},
 		{0xa9c0, 0xa9e5, 37},
@@ -5720,17 +5838,21 @@
 		{0x1163f, 0x116b6, 119},
 		{0x116b7, 0x1172b, 116},
 		{0x11839, 0x1183a, 1},
-		{0x11a34, 0x11a47, 19},
-		{0x11a99, 0x11c3f, 422},
-		{0x11d42, 0x11d44, 2},
-		{0x11d45, 0x11d97, 82},
-		{0x16af0, 0x16af4, 1},
+		{0x119e0, 0x11a34, 84},
+		{0x11a47, 0x11a99, 82},
+		{0x11c3f, 0x11d42, 259},
+		{0x11d44, 0x11d45, 1},
+		{0x11d97, 0x16af0, 19801},
+		{0x16af1, 0x16af4, 1},
+		{0x16b30, 0x16b36, 1},
 		{0x16f8f, 0x16f9f, 1},
 		{0x1d167, 0x1d169, 1},
 		{0x1d16d, 0x1d172, 1},
 		{0x1d17b, 0x1d182, 1},
 		{0x1d185, 0x1d18b, 1},
 		{0x1d1aa, 0x1d1ad, 1},
+		{0x1e130, 0x1e136, 1},
+		{0x1e2ec, 0x1e2ef, 1},
 		{0x1e8d0, 0x1e8d6, 1},
 		{0x1e944, 0x1e946, 1},
 		{0x1e948, 0x1e94a, 1},
@@ -5761,8 +5883,9 @@
 		{0x115c7, 0x115c8, 1},
 		{0x11a98, 0x16b42, 20650},
 		{0x16b43, 0x16fe0, 1181},
-		{0x16fe1, 0x1e944, 31075},
-		{0x1e945, 0x1e946, 1},
+		{0x16fe1, 0x16fe3, 2},
+		{0x1e13c, 0x1e13d, 1},
+		{0x1e944, 0x1e946, 1},
 	},
 }
 
@@ -5814,7 +5937,7 @@
 		{0xfa70, 0xfad9, 1},
 	},
 	R32: []Range32{
-		{0x17000, 0x187f1, 1},
+		{0x17000, 0x187f7, 1},
 		{0x18800, 0x18af2, 1},
 		{0x1b170, 0x1b2fb, 1},
 		{0x20000, 0x2a6d6, 1},
@@ -5963,17 +6086,17 @@
 		{0x103c, 0x103e, 1},
 		{0x1056, 0x1059, 1},
 		{0x105e, 0x1060, 1},
-		{0x1062, 0x1067, 5},
-		{0x1068, 0x1071, 9},
-		{0x1072, 0x1074, 1},
-		{0x1082, 0x1086, 1},
-		{0x109c, 0x109d, 1},
-		{0x135f, 0x1712, 947},
-		{0x1713, 0x1732, 31},
-		{0x1733, 0x1752, 31},
-		{0x1753, 0x1772, 31},
-		{0x1773, 0x17b6, 67},
-		{0x17b7, 0x17c8, 1},
+		{0x1062, 0x1064, 1},
+		{0x1067, 0x106d, 1},
+		{0x1071, 0x1074, 1},
+		{0x1082, 0x108d, 1},
+		{0x108f, 0x109a, 11},
+		{0x109b, 0x109d, 1},
+		{0x1712, 0x1713, 1},
+		{0x1732, 0x1733, 1},
+		{0x1752, 0x1753, 1},
+		{0x1772, 0x1773, 1},
+		{0x17b6, 0x17c8, 1},
 		{0x1885, 0x1886, 1},
 		{0x18a9, 0x1920, 119},
 		{0x1921, 0x192b, 1},
@@ -5987,25 +6110,28 @@
 		{0x1ba1, 0x1ba9, 1},
 		{0x1bac, 0x1bad, 1},
 		{0x1be7, 0x1bf1, 1},
-		{0x1c24, 0x1c35, 1},
-		{0x1cf2, 0x1cf3, 1},
+		{0x1c24, 0x1c36, 1},
 		{0x1de7, 0x1df4, 1},
 		{0x24b6, 0x24e9, 1},
 		{0x2de0, 0x2dff, 1},
 		{0xa674, 0xa67b, 1},
 		{0xa69e, 0xa69f, 1},
+		{0xa802, 0xa80b, 9},
 		{0xa823, 0xa827, 1},
 		{0xa880, 0xa881, 1},
 		{0xa8b4, 0xa8c3, 1},
-		{0xa8c5, 0xa926, 97},
-		{0xa927, 0xa92a, 1},
+		{0xa8c5, 0xa8ff, 58},
+		{0xa926, 0xa92a, 1},
 		{0xa947, 0xa952, 1},
 		{0xa980, 0xa983, 1},
 		{0xa9b4, 0xa9bf, 1},
-		{0xaa29, 0xaa36, 1},
+		{0xa9e5, 0xaa29, 68},
+		{0xaa2a, 0xaa36, 1},
 		{0xaa43, 0xaa4c, 9},
-		{0xaa4d, 0xaab0, 99},
-		{0xaab2, 0xaab4, 1},
+		{0xaa4d, 0xaa7b, 46},
+		{0xaa7c, 0xaa7d, 1},
+		{0xaab0, 0xaab2, 2},
+		{0xaab3, 0xaab4, 1},
 		{0xaab7, 0xaab8, 1},
 		{0xaabe, 0xaaeb, 45},
 		{0xaaec, 0xaaef, 1},
@@ -6048,7 +6174,10 @@
 		{0x116ac, 0x116b5, 1},
 		{0x1171d, 0x1172a, 1},
 		{0x1182c, 0x11838, 1},
-		{0x11a01, 0x11a0a, 1},
+		{0x119d1, 0x119d7, 1},
+		{0x119da, 0x119df, 1},
+		{0x119e4, 0x11a01, 29},
+		{0x11a02, 0x11a0a, 1},
 		{0x11a35, 0x11a39, 1},
 		{0x11a3b, 0x11a3e, 1},
 		{0x11a51, 0x11a5b, 1},
@@ -6066,8 +6195,9 @@
 		{0x11d90, 0x11d91, 1},
 		{0x11d93, 0x11d96, 1},
 		{0x11ef3, 0x11ef6, 1},
-		{0x16b30, 0x16b36, 1},
-		{0x16f51, 0x16f7e, 1},
+		{0x16f4f, 0x16f51, 2},
+		{0x16f52, 0x16f87, 1},
+		{0x16f8f, 0x16f92, 1},
 		{0x1bc9e, 0x1e000, 9058},
 		{0x1e001, 0x1e006, 1},
 		{0x1e008, 0x1e018, 1},
@@ -6105,9 +6235,10 @@
 		{0x0cc2, 0x0cd5, 19},
 		{0x0cd6, 0x0d3e, 104},
 		{0x0d57, 0x0dcf, 120},
-		{0x0ddf, 0x200c, 4653},
-		{0x302e, 0x302f, 1},
-		{0xff9e, 0xff9f, 1},
+		{0x0ddf, 0x1b35, 3414},
+		{0x200c, 0x302e, 4130},
+		{0x302f, 0xff9e, 53103},
+		{0xff9f, 0xff9f, 1},
 	},
 	R32: []Range32{
 		{0x1133e, 0x11357, 25},
@@ -6495,8 +6626,8 @@
 		{0x0f0d, 0x0f12, 1},
 		{0x104a, 0x104b, 1},
 		{0x1361, 0x1368, 1},
-		{0x166d, 0x166e, 1},
-		{0x16eb, 0x16ed, 1},
+		{0x166e, 0x16eb, 125},
+		{0x16ec, 0x16ed, 1},
 		{0x1735, 0x1736, 1},
 		{0x17d4, 0x17d6, 1},
 		{0x17da, 0x1802, 40},
@@ -6512,10 +6643,10 @@
 		{0x2047, 0x2049, 1},
 		{0x2e2e, 0x2e3c, 14},
 		{0x2e41, 0x2e4c, 11},
-		{0x2e4e, 0x3001, 435},
-		{0x3002, 0xa4fe, 29948},
-		{0xa4ff, 0xa60d, 270},
-		{0xa60e, 0xa60f, 1},
+		{0x2e4e, 0x2e4f, 1},
+		{0x3001, 0x3002, 1},
+		{0xa4fe, 0xa4ff, 1},
+		{0xa60d, 0xa60f, 1},
 		{0xa6f3, 0xa6f7, 1},
 		{0xa876, 0xa877, 1},
 		{0xa8ce, 0xa8cf, 1},
@@ -6764,6 +6895,7 @@
 	{0x0275, 0x0275, d{-214, 0, -214}},
 	{0x027D, 0x027D, d{10727, 0, 10727}},
 	{0x0280, 0x0280, d{-218, 0, -218}},
+	{0x0282, 0x0282, d{42307, 0, 42307}},
 	{0x0283, 0x0283, d{-218, 0, -218}},
 	{0x0287, 0x0287, d{42282, 0, 42282}},
 	{0x0288, 0x0288, d{-218, 0, -218}},
@@ -6840,6 +6972,7 @@
 	{0x1CBD, 0x1CBF, d{0, -3008, 0}},
 	{0x1D79, 0x1D79, d{35332, 0, 35332}},
 	{0x1D7D, 0x1D7D, d{3814, 0, 3814}},
+	{0x1D8E, 0x1D8E, d{35384, 0, 35384}},
 	{0x1E00, 0x1E95, d{UpperLower, UpperLower, UpperLower}},
 	{0x1E9B, 0x1E9B, d{-59, 0, -59}},
 	{0x1E9E, 0x1E9E, d{0, -7615, 0}},
@@ -6939,6 +7072,7 @@
 	{0xA78B, 0xA78C, d{UpperLower, UpperLower, UpperLower}},
 	{0xA78D, 0xA78D, d{0, -42280, 0}},
 	{0xA790, 0xA793, d{UpperLower, UpperLower, UpperLower}},
+	{0xA794, 0xA794, d{48, 0, 48}},
 	{0xA796, 0xA7A9, d{UpperLower, UpperLower, UpperLower}},
 	{0xA7AA, 0xA7AA, d{0, -42308, 0}},
 	{0xA7AB, 0xA7AB, d{0, -42319, 0}},
@@ -6949,7 +7083,11 @@
 	{0xA7B1, 0xA7B1, d{0, -42282, 0}},
 	{0xA7B2, 0xA7B2, d{0, -42261, 0}},
 	{0xA7B3, 0xA7B3, d{0, 928, 0}},
-	{0xA7B4, 0xA7B9, d{UpperLower, UpperLower, UpperLower}},
+	{0xA7B4, 0xA7BF, d{UpperLower, UpperLower, UpperLower}},
+	{0xA7C2, 0xA7C3, d{UpperLower, UpperLower, UpperLower}},
+	{0xA7C4, 0xA7C4, d{0, -48, 0}},
+	{0xA7C5, 0xA7C5, d{0, -42307, 0}},
+	{0xA7C6, 0xA7C6, d{0, -35384, 0}},
 	{0xAB53, 0xAB53, d{-928, 0, -928}},
 	{0xAB70, 0xABBF, d{-38864, 0, -38864}},
 	{0xFF21, 0xFF3A, d{0, 32, 0}},
@@ -7571,7 +7709,9 @@
 		{0xa796, 0xa7aa, 2},
 		{0xa7ab, 0xa7ae, 1},
 		{0xa7b0, 0xa7b4, 1},
-		{0xa7b6, 0xa7b8, 2},
+		{0xa7b6, 0xa7be, 2},
+		{0xa7c2, 0xa7c4, 2},
+		{0xa7c5, 0xa7c6, 1},
 		{0xff21, 0xff3a, 1},
 	},
 	R32: []Range32{
@@ -7642,7 +7782,8 @@
 		{0x0269, 0x026c, 1},
 		{0x026f, 0x0271, 2},
 		{0x0272, 0x0275, 3},
-		{0x027d, 0x0283, 3},
+		{0x027d, 0x0280, 3},
+		{0x0282, 0x0283, 1},
 		{0x0287, 0x028c, 1},
 		{0x0292, 0x029d, 11},
 		{0x029e, 0x0345, 167},
@@ -7667,7 +7808,8 @@
 		{0x13f8, 0x13fd, 1},
 		{0x1c80, 0x1c88, 1},
 		{0x1d79, 0x1d7d, 4},
-		{0x1e01, 0x1e95, 2},
+		{0x1d8e, 0x1e01, 115},
+		{0x1e03, 0x1e95, 2},
 		{0x1e9b, 0x1ea1, 6},
 		{0x1ea3, 0x1eff, 2},
 		{0x1f00, 0x1f07, 1},
@@ -7699,11 +7841,11 @@
 		{0xa77a, 0xa77c, 2},
 		{0xa77f, 0xa787, 2},
 		{0xa78c, 0xa791, 5},
-		{0xa793, 0xa797, 4},
-		{0xa799, 0xa7a9, 2},
-		{0xa7b5, 0xa7b9, 2},
-		{0xab53, 0xab70, 29},
-		{0xab71, 0xabbf, 1},
+		{0xa793, 0xa794, 1},
+		{0xa797, 0xa7a9, 2},
+		{0xa7b5, 0xa7bf, 2},
+		{0xa7c3, 0xab53, 912},
+		{0xab70, 0xabbf, 1},
 		{0xff41, 0xff5a, 1},
 	},
 	R32: []Range32{
@@ -7760,7 +7902,7 @@
 	},
 }
 
-// Range entries: 3480 16-bit, 1632 32-bit, 5112 total.
-// Range bytes: 20880 16-bit, 19584 32-bit, 40464 total.
+// Range entries: 3483 16-bit, 1730 32-bit, 5213 total.
+// Range bytes: 20898 16-bit, 20760 32-bit, 41658 total.
 
 // Fold orbit bytes: 88 pairs, 352 bytes
diff --git a/libgo/go/unicode/utf8/utf8.go b/libgo/go/unicode/utf8/utf8.go
index eae4ead..b722a03 100644
--- a/libgo/go/unicode/utf8/utf8.go
+++ b/libgo/go/unicode/utf8/utf8.go
@@ -4,6 +4,7 @@
 
 // Package utf8 implements functions and constants to support text encoded in
 // UTF-8. It includes functions to translate between runes and UTF-8 byte sequences.
+// See https://en.wikipedia.org/wiki/UTF-8
 package utf8
 
 // The conditions RuneError==unicode.ReplacementChar and
diff --git a/libgo/gotool-packages.txt b/libgo/gotool-packages.txt
index b5a3bbd..90521ae 100644
--- a/libgo/gotool-packages.txt
+++ b/libgo/gotool-packages.txt
@@ -5,7 +5,6 @@
 cmd/go/internal/cfg
 cmd/go/internal/clean
 cmd/go/internal/cmdflag
-cmd/go/internal/dirhash
 cmd/go/internal/doc
 cmd/go/internal/envcmd
 cmd/go/internal/fix
@@ -22,23 +21,17 @@
 cmd/go/internal/modconv
 cmd/go/internal/modfetch
 cmd/go/internal/modfetch/codehost
-cmd/go/internal/modfile
 cmd/go/internal/modget
 cmd/go/internal/modinfo
 cmd/go/internal/modload
-cmd/go/internal/module
 cmd/go/internal/mvs
-cmd/go/internal/note
 cmd/go/internal/par
 cmd/go/internal/renameio
 cmd/go/internal/robustio
 cmd/go/internal/run
 cmd/go/internal/search
-cmd/go/internal/semver
 cmd/go/internal/str
-cmd/go/internal/sumweb
 cmd/go/internal/test
-cmd/go/internal/tlog
 cmd/go/internal/tool
 cmd/go/internal/txtar
 cmd/go/internal/version
@@ -47,10 +40,22 @@
 cmd/go/internal/work
 cmd/internal/browser
 cmd/internal/buildid
+cmd/internal/diff
 cmd/internal/edit
 cmd/internal/objabi
 cmd/internal/sys
 cmd/internal/test2json
+golang.org/x/crypto/ed25519
+golang.org/x/crypto/ed25519/internal/edwards25519
+golang.org/x/mod/internal/lazyregexp
+golang.org/x/mod/modfile
+golang.org/x/mod/module
+golang.org/x/mod/semver
+golang.org/x/mod/sumdb
+golang.org/x/mod/sumdb/dirhash
+golang.org/x/mod/sumdb/note
+golang.org/x/mod/sumdb/tlog
+golang.org/x/mod/zip
 golang.org/x/tools/go/analysis
 golang.org/x/tools/go/analysis/internal/analysisflags
 golang.org/x/tools/go/analysis/internal/facts
@@ -86,3 +91,5 @@
 golang.org/x/tools/go/cfg
 golang.org/x/tools/go/types/objectpath
 golang.org/x/tools/go/types/typeutil
+golang.org/x/xerrors
+golang.org/x/xerrors/internal
diff --git a/libgo/libgo-packages.txt b/libgo/libgo-packages.txt
index b19747a..2b5fba8 100644
--- a/libgo/libgo-packages.txt
+++ b/libgo/libgo-packages.txt
@@ -72,12 +72,12 @@
 go/scanner
 go/token
 go/types
+golang.org/x/crypto/chacha20
 golang.org/x/crypto/chacha20poly1305
 golang.org/x/crypto/cryptobyte
 golang.org/x/crypto/cryptobyte/asn1
 golang.org/x/crypto/curve25519
 golang.org/x/crypto/hkdf
-golang.org/x/crypto/internal/chacha20
 golang.org/x/crypto/internal/subtle
 golang.org/x/crypto/poly1305
 golang.org/x/net/dns/dnsmessage
@@ -96,6 +96,7 @@
 hash/crc32
 hash/crc64
 hash/fnv
+hash/maphash
 html
 html/template
 image
@@ -116,6 +117,7 @@
 internal/lazyregexp
 internal/lazytemplate
 internal/nettrace
+internal/obscuretestdata
 internal/oserror
 internal/poll
 internal/race
diff --git a/libgo/match.sh b/libgo/match.sh
index 281acf7..cd35942 100755
--- a/libgo/match.sh
+++ b/libgo/match.sh
@@ -113,7 +113,7 @@
 	"") ;;
 	$goarch) ;;
 	$goos) ;;
-	aix | android | darwin | dragonfly | freebsd | hurd | js | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
+	aix | android | darwin | dragonfly | freebsd | illumos | hurd | js | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
 	    tag1=nonmatchingtag
 	    ;;
 	386 | amd64 | amd64p32 | arm | armbe | arm64 | arm64be | alpha | ia64 | m68k | mips | mipsle | mips64 | mips64le | mips64p32 | mips64p32le | nios2 | ppc | ppc64 | ppc64le | riscv64 | s390 | s390x | sh | shbe | sparc | sparc64 | wasm)
@@ -125,7 +125,7 @@
 	"") ;;
 	$goarch) ;;
 	$goos) ;;
-	aix | android | darwin | dragonfly | freebsd | hurd | js | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
+	aix | android | darwin | dragonfly | freebsd | hurd | illumos | js | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
 	    tag2=nonmatchingtag
 	    ;;
 	386 | amd64 | amd64p32 | arm | armbe | arm64 | arm64be | alpha | ia64 | m68k | mips | mipsle | mips64 | mips64le | mips64p32 | mips64p32le | nios2 | ppc | ppc64 | ppc64le | riscv64 | s390 | s390x | sh | shbe | sparc | sparc64 | wasm)
diff --git a/libgo/merge.sh b/libgo/merge.sh
index 7138891..b15189e 100755
--- a/libgo/merge.sh
+++ b/libgo/merge.sh
@@ -128,7 +128,7 @@
 (cd ${NEWDIR}/src && find . -name '*.go' -print) | while read f; do
   skip=false
   case "$f" in
-  ./cmd/buildid/* | ./cmd/cgo/* | ./cmd/go/* | ./cmd/gofmt/* | ./cmd/testjson/* | ./cmd/vet/* | ./cmd/internal/browser/* | ./cmd/internal/buildid/* | ./cmd/internal/edit/* | ./cmd/internal/objabi/* | ./cmd/internal/testj2on/* | ./cmd/internal/sys/* | ./cmd/vendor/golang.org/x/tools/* )
+  ./cmd/buildid/* | ./cmd/cgo/* | ./cmd/go/* | ./cmd/gofmt/* | ./cmd/testjson/* | ./cmd/vet/* | ./cmd/internal/browser/* | ./cmd/internal/buildid/* | ./cmd/internal/edit/* | ./cmd/internal/objabi/* | ./cmd/internal/testj2on/* | ./cmd/internal/sys/* | ./cmd/vendor/golang.org/x/tools/* | ./cmd/vendor/golang.org/x/mod/* | ./cmd/vendor/golang.org/x/xerrors/* | ./cmd/vendor/golang.org/x/crypto/ed25519)
     ;;
   ./cmd/*)
     skip=true
@@ -150,7 +150,7 @@
 (cd ${NEWDIR}/src && find . -name testdata -print) | while read d; do
   skip=false
   case "$d" in
-  ./cmd/buildid/* | ./cmd/cgo/* | ./cmd/go/* | ./cmd/gofmt/* | ./cmd/testjson/* | ./cmd/vet/* | ./cmd/internal/browser/* | ./cmd/internal/buildid/* | ./cmd/internal/edit/* | ./cmd/internal/objabi/* | ./cmd/internal/testj2on/* | ./cmd/internal/sys/* | ./cmd/vendor/golang.org/x/tools/* )
+  ./cmd/buildid/* | ./cmd/cgo/* | ./cmd/go/* | ./cmd/gofmt/* | ./cmd/testjson/* | ./cmd/vet/* | ./cmd/internal/browser/* | ./cmd/internal/buildid/* | ./cmd/internal/diff/* | | ./cmd/internal/edit/* | ./cmd/internal/objabi/* | ./cmd/internal/testj2on/* | ./cmd/internal/sys/* | ./cmd/vendor/golang.org/x/tools/* )
     ;;
   ./cmd/*)
     skip=true
@@ -165,7 +165,7 @@
 
   oldtd=${OLDDIR}/src/$d
   newtd=${NEWDIR}/src/$d
-  libgofile=go/`echo $d | sed -e 's|cmd/vendor/|/|' | sed -e 's|/vendor/|/|'`
+  libgotd=go/`echo $d | sed -e 's|cmd/vendor/|/|' | sed -e 's|/vendor/|/|'`
   if ! test -d ${oldtd}; then
     echo "merge.sh: $d: NEWDIR"
     continue
diff --git a/libgo/misc/cgo/fortran/test.bash b/libgo/misc/cgo/fortran/test.bash
index 9498da0..2b61730 100755
--- a/libgo/misc/cgo/fortran/test.bash
+++ b/libgo/misc/cgo/fortran/test.bash
@@ -28,7 +28,7 @@
   ;;
 esac
 
-if ! $FC helloworld/helloworld.f90 -o main.exe >& /dev/null; then
+if ! $FC helloworld/helloworld.f90 -o /dev/null >& /dev/null; then
   echo "skipping Fortran test: could not build helloworld.f90 with $FC"
   exit 0
 fi
diff --git a/libgo/misc/cgo/life/overlaydir_test.go b/libgo/misc/cgo/life/overlaydir_test.go
index f381ea6..034c836 100644
--- a/libgo/misc/cgo/life/overlaydir_test.go
+++ b/libgo/misc/cgo/life/overlaydir_test.go
@@ -21,12 +21,9 @@
 		return err
 	}
 
-	symBase, err := filepath.Rel(srcRoot, dstRoot)
+	srcRoot, err := filepath.Abs(srcRoot)
 	if err != nil {
-		symBase, err = filepath.Abs(srcRoot)
-		if err != nil {
-			return err
-		}
+		return err
 	}
 
 	return filepath.Walk(srcRoot, func(srcPath string, info os.FileInfo, err error) error {
@@ -52,11 +49,11 @@
 		// Always copy directories (don't symlink them).
 		// If we add a file in the overlay, we don't want to add it in the original.
 		if info.IsDir() {
-			return os.Mkdir(dstPath, perm)
+			return os.MkdirAll(dstPath, perm|0200)
 		}
 
 		// If the OS supports symlinks, use them instead of copying bytes.
-		if err := os.Symlink(filepath.Join(symBase, suffix), dstPath); err == nil {
+		if err := os.Symlink(srcPath, dstPath); err == nil {
 			return nil
 		}
 
diff --git a/libgo/misc/cgo/stdio/overlaydir_test.go b/libgo/misc/cgo/stdio/overlaydir_test.go
index 8a8dcdb..027ebf1 100644
--- a/libgo/misc/cgo/stdio/overlaydir_test.go
+++ b/libgo/misc/cgo/stdio/overlaydir_test.go
@@ -21,12 +21,9 @@
 		return err
 	}
 
-	symBase, err := filepath.Rel(srcRoot, dstRoot)
+	srcRoot, err := filepath.Abs(srcRoot)
 	if err != nil {
-		symBase, err = filepath.Abs(srcRoot)
-		if err != nil {
-			return err
-		}
+		return err
 	}
 
 	return filepath.Walk(srcRoot, func(srcPath string, info os.FileInfo, err error) error {
@@ -52,11 +49,11 @@
 		// Always copy directories (don't symlink them).
 		// If we add a file in the overlay, we don't want to add it in the original.
 		if info.IsDir() {
-			return os.Mkdir(dstPath, perm)
+			return os.MkdirAll(dstPath, perm|0200)
 		}
 
 		// If the OS supports symlinks, use them instead of copying bytes.
-		if err := os.Symlink(filepath.Join(symBase, suffix), dstPath); err == nil {
+		if err := os.Symlink(srcPath, dstPath); err == nil {
 			return nil
 		}
 
diff --git a/libgo/misc/cgo/test/cgo_test.go b/libgo/misc/cgo/test/cgo_test.go
index c66df2c..b745a44 100644
--- a/libgo/misc/cgo/test/cgo_test.go
+++ b/libgo/misc/cgo/test/cgo_test.go
@@ -58,6 +58,7 @@
 func Test28896(t *testing.T)                 { test28896(t) }
 func Test30065(t *testing.T)                 { test30065(t) }
 func Test32579(t *testing.T)                 { test32579(t) }
+func Test31891(t *testing.T)                 { test31891(t) }
 func TestAlign(t *testing.T)                 { testAlign(t) }
 func TestAtol(t *testing.T)                  { testAtol(t) }
 func TestBlocking(t *testing.T)              { testBlocking(t) }
@@ -91,5 +92,6 @@
 func TestUnsignedInt(t *testing.T)           { testUnsignedInt(t) }
 func TestZeroArgCallback(t *testing.T)       { testZeroArgCallback(t) }
 
-func BenchmarkCgoCall(b *testing.B)  { benchCgoCall(b) }
-func BenchmarkGoString(b *testing.B) { benchGoString(b) }
+func BenchmarkCgoCall(b *testing.B)     { benchCgoCall(b) }
+func BenchmarkGoString(b *testing.B)    { benchGoString(b) }
+func BenchmarkCGoCallback(b *testing.B) { benchCallback(b) }
diff --git a/libgo/misc/cgo/test/issue31891.c b/libgo/misc/cgo/test/issue31891.c
new file mode 100644
index 0000000..67a0dda
--- /dev/null
+++ b/libgo/misc/cgo/test/issue31891.c
@@ -0,0 +1,13 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "_cgo_export.h"
+
+void callIssue31891() {
+    Issue31891A a;
+    useIssue31891A(&a);
+
+    Issue31891B b;
+    useIssue31891B(&b);
+}
diff --git a/libgo/misc/cgo/test/issue8945.go b/libgo/misc/cgo/test/issue8945.go
deleted file mode 100644
index 57a5b2d..0000000
--- a/libgo/misc/cgo/test/issue8945.go
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build gccgo
-
-package cgotest
-
-//typedef void (*PFunc)();
-//PFunc success_cb;
-import "C"
-
-//export Test
-func Test() {
-	_ = C.success_cb
-}
diff --git a/libgo/misc/cgo/test/overlaydir_test.go b/libgo/misc/cgo/test/overlaydir_test.go
index 1b5c67d..f651979 100644
--- a/libgo/misc/cgo/test/overlaydir_test.go
+++ b/libgo/misc/cgo/test/overlaydir_test.go
@@ -21,12 +21,9 @@
 		return err
 	}
 
-	symBase, err := filepath.Rel(srcRoot, dstRoot)
+	srcRoot, err := filepath.Abs(srcRoot)
 	if err != nil {
-		symBase, err = filepath.Abs(srcRoot)
-		if err != nil {
-			return err
-		}
+		return err
 	}
 
 	return filepath.Walk(srcRoot, func(srcPath string, info os.FileInfo, err error) error {
@@ -52,11 +49,11 @@
 		// Always copy directories (don't symlink them).
 		// If we add a file in the overlay, we don't want to add it in the original.
 		if info.IsDir() {
-			return os.Mkdir(dstPath, perm)
+			return os.MkdirAll(dstPath, perm|0200)
 		}
 
 		// If the OS supports symlinks, use them instead of copying bytes.
-		if err := os.Symlink(filepath.Join(symBase, suffix), dstPath); err == nil {
+		if err := os.Symlink(srcPath, dstPath); err == nil {
 			return nil
 		}
 
diff --git a/libgo/misc/cgo/test/test.go b/libgo/misc/cgo/test/test.go
index 2d060bf..b014899 100644
--- a/libgo/misc/cgo/test/test.go
+++ b/libgo/misc/cgo/test/test.go
@@ -115,6 +115,44 @@
 	return x+y;
 };
 
+// Following mimicks vulkan complex definitions for benchmarking cgocheck overhead.
+
+typedef uint32_t VkFlags;
+typedef VkFlags  VkDeviceQueueCreateFlags;
+typedef uint32_t VkStructureType;
+
+typedef struct VkDeviceQueueCreateInfo {
+    VkStructureType             sType;
+    const void*                 pNext;
+    VkDeviceQueueCreateFlags    flags;
+    uint32_t                    queueFamilyIndex;
+    uint32_t                    queueCount;
+    const float*                pQueuePriorities;
+} VkDeviceQueueCreateInfo;
+
+typedef struct VkPhysicalDeviceFeatures {
+    uint32_t bools[56];
+} VkPhysicalDeviceFeatures;
+
+typedef struct VkDeviceCreateInfo {
+    VkStructureType                    sType;
+    const void*                        pNext;
+    VkFlags                            flags;
+    uint32_t                           queueCreateInfoCount;
+    const VkDeviceQueueCreateInfo*     pQueueCreateInfos;
+    uint32_t                           enabledLayerCount;
+    const char* const*                 ppEnabledLayerNames;
+    uint32_t                           enabledExtensionCount;
+    const char* const*                 ppEnabledExtensionNames;
+    const VkPhysicalDeviceFeatures*    pEnabledFeatures;
+} VkDeviceCreateInfo;
+
+void handleComplexPointer(VkDeviceCreateInfo *a0) {}
+void handleComplexPointer8(
+	VkDeviceCreateInfo *a0, VkDeviceCreateInfo *a1, VkDeviceCreateInfo *a2, VkDeviceCreateInfo *a3,
+	VkDeviceCreateInfo *a4, VkDeviceCreateInfo *a5, VkDeviceCreateInfo *a6, VkDeviceCreateInfo *a7
+) {}
+
 // complex alignment
 
 struct {
@@ -524,6 +562,11 @@
 		issue8811Init();
 }
 
+// issue 8945
+
+typedef void (*PFunc8945)();
+PFunc8945 func8945;
+
 // issue 9557
 
 struct issue9557_t {
@@ -993,10 +1036,55 @@
 }
 
 func benchCgoCall(b *testing.B) {
-	const x = C.int(2)
-	const y = C.int(3)
+	b.Run("add-int", func(b *testing.B) {
+		const x = C.int(2)
+		const y = C.int(3)
+
+		for i := 0; i < b.N; i++ {
+			C.add(x, y)
+		}
+	})
+
+	b.Run("one-pointer", func(b *testing.B) {
+		var a0 C.VkDeviceCreateInfo
+		for i := 0; i < b.N; i++ {
+			C.handleComplexPointer(&a0)
+		}
+	})
+	b.Run("eight-pointers", func(b *testing.B) {
+		var a0, a1, a2, a3, a4, a5, a6, a7 C.VkDeviceCreateInfo
+		for i := 0; i < b.N; i++ {
+			C.handleComplexPointer8(&a0, &a1, &a2, &a3, &a4, &a5, &a6, &a7)
+		}
+	})
+	b.Run("eight-pointers-nil", func(b *testing.B) {
+		var a0, a1, a2, a3, a4, a5, a6, a7 *C.VkDeviceCreateInfo
+		for i := 0; i < b.N; i++ {
+			C.handleComplexPointer8(a0, a1, a2, a3, a4, a5, a6, a7)
+		}
+	})
+	b.Run("eight-pointers-array", func(b *testing.B) {
+		var a [8]C.VkDeviceCreateInfo
+		for i := 0; i < b.N; i++ {
+			C.handleComplexPointer8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7])
+		}
+	})
+	b.Run("eight-pointers-slice", func(b *testing.B) {
+		a := make([]C.VkDeviceCreateInfo, 8)
+		for i := 0; i < b.N; i++ {
+			C.handleComplexPointer8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7])
+		}
+	})
+}
+
+// Benchmark measuring overhead from Go to C and back to Go (via a callback)
+func benchCallback(b *testing.B) {
+	var x = false
 	for i := 0; i < b.N; i++ {
-		C.add(x, y)
+		nestedCall(func() { x = true })
+	}
+	if !x {
+		b.Fatal("nestedCall was not invoked")
 	}
 }
 
@@ -1956,12 +2044,14 @@
 				locks[j].Lock()
 				ints[j]++
 				locks[j].Unlock()
-				// Avoid making the loop unpreemptible
-				// for gccgo.
-				if i%0x1000000 == 0 {
+				// needed for gccgo, to avoid creation of an
+				// unpreemptible "fast path" in this loop. Choice
+				// of (1<<24) is somewhat arbitrary.
+				if i%(1<<24) == 0 {
 					runtime.Gosched()
 				}
 				i++
+
 			}
 		}()
 		time.Sleep(time.Millisecond)
diff --git a/libgo/misc/cgo/test/testdata/issue9026/issue9026.go b/libgo/misc/cgo/test/testdata/issue9026/issue9026.go
index 149c265..ff269ca 100644
--- a/libgo/misc/cgo/test/testdata/issue9026/issue9026.go
+++ b/libgo/misc/cgo/test/testdata/issue9026/issue9026.go
@@ -4,9 +4,9 @@
 // per-package counter used to create fresh identifiers.
 
 /*
-typedef struct {} git_merge_file_input;
+typedef struct { int i; } git_merge_file_input;
 
-typedef struct {} git_merge_file_options;
+typedef struct { int j; } git_merge_file_options;
 
 void git_merge_file(
         git_merge_file_input *in,
@@ -29,7 +29,7 @@
 	// Brittle: the assertion may fail spuriously when the algorithm
 	// changes, but should remain stable otherwise.
 	got := fmt.Sprintf("%T %T", in, opts)
-	want := "issue9026._Ctype_struct___0 *issue9026._Ctype_struct___0"
+	want := "issue9026._Ctype_struct___0 *issue9026._Ctype_struct___1"
 	if got != want {
 		t.Errorf("Non-deterministic type names: got %s, want %s", got, want)
 	}
diff --git a/libgo/misc/cgo/test/testx.go b/libgo/misc/cgo/test/testx.go
index 67def90..42979b5 100644
--- a/libgo/misc/cgo/test/testx.go
+++ b/libgo/misc/cgo/test/testx.go
@@ -102,12 +102,28 @@
 // #include'd twice.  No runtime test; just make sure it compiles.
 #include "issue8331.h"
 
+// issue 8945
+
+typedef void (*PFunc8945)();
+extern PFunc8945 func8945; // definition is in test.go
+
 // issue 20910
 void callMulti(void);
 
 // issue 28772 part 2 - part 1 in issuex.go
 #define issue28772Constant2 2
 
+
+// issue 31891
+typedef struct {
+	long obj;
+} Issue31891A;
+
+typedef struct {
+	long obj;
+} Issue31891B;
+
+void callIssue31891(void);
 */
 import "C"
 
@@ -503,6 +519,13 @@
 
 var issue8331Var C.issue8331
 
+// issue 8945
+
+//export Test8945
+func Test8945() {
+	_ = C.func8945
+}
+
 // issue 20910
 
 //export multi
@@ -517,3 +540,15 @@
 // issue 28772 part 2
 
 const issue28772Constant2 = C.issue28772Constant2
+
+// issue 31891
+
+//export useIssue31891A
+func useIssue31891A(c *C.Issue31891A) {}
+
+//export useIssue31891B
+func useIssue31891B(c *C.Issue31891B) {}
+
+func test31891(t *testing.T) {
+	C.callIssue31891()
+}
diff --git a/libgo/misc/cgo/testasan/main.go b/libgo/misc/cgo/testasan/main.go
index 1837c6c..bc77678 100644
--- a/libgo/misc/cgo/testasan/main.go
+++ b/libgo/misc/cgo/testasan/main.go
@@ -36,14 +36,21 @@
 import "C"
 
 import (
+	"fmt"
+	"os"
+	"path/filepath"
 	"time"
 )
 
 func main() {
+	start := time.Now()
+
 	// ensure that we can function normally
 	var v [][]byte
 	for i := 0; i < 1000; i++ {
 		time.Sleep(10 * time.Microsecond)
 		v = append(v, make([]byte, 64<<10))
 	}
+
+	fmt.Printf("ok\t%s\t%s\n", filepath.Base(os.Args[0]), time.Since(start).Round(time.Millisecond))
 }
diff --git a/libgo/misc/cgo/testcarchive/carchive_test.go b/libgo/misc/cgo/testcarchive/carchive_test.go
index 7051670..98cd41a 100644
--- a/libgo/misc/cgo/testcarchive/carchive_test.go
+++ b/libgo/misc/cgo/testcarchive/carchive_test.go
@@ -36,7 +36,10 @@
 var GOOS, GOARCH, GOPATH string
 var libgodir string
 
+var testWork bool // If true, preserve temporary directories.
+
 func TestMain(m *testing.M) {
+	flag.BoolVar(&testWork, "testwork", false, "if true, log and preserve the test's temporary working directory")
 	flag.Parse()
 	if testing.Short() && os.Getenv("GO_BUILDER_NAME") == "" {
 		fmt.Printf("SKIP - short mode and $GO_BUILDER_NAME not set\n")
@@ -54,7 +57,11 @@
 	if err != nil {
 		log.Panic(err)
 	}
-	defer os.RemoveAll(GOPATH)
+	if testWork {
+		log.Println(GOPATH)
+	} else {
+		defer os.RemoveAll(GOPATH)
+	}
 	os.Setenv("GOPATH", GOPATH)
 
 	// Copy testdata into GOPATH/src/testarchive, along with a go.mod file
@@ -164,6 +171,38 @@
 	return []string{executor, name}
 }
 
+// genHeader writes a C header file for the C-exported declarations found in .go
+// source files in dir.
+//
+// TODO(golang.org/issue/35715): This should be simpler.
+func genHeader(t *testing.T, header, dir string) {
+	t.Helper()
+
+	// The 'cgo' command generates a number of additional artifacts,
+	// but we're only interested in the header.
+	// Shunt the rest of the outputs to a temporary directory.
+	objDir, err := ioutil.TempDir(GOPATH, "_obj")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(objDir)
+
+	files, err := filepath.Glob(filepath.Join(dir, "*.go"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	cmd := exec.Command("go", "tool", "cgo",
+		"-objdir", objDir,
+		"-exportheader", header)
+	cmd.Args = append(cmd.Args, files...)
+	t.Log(cmd.Args)
+	if out, err := cmd.CombinedOutput(); err != nil {
+		t.Logf("%s", out)
+		t.Fatal(err)
+	}
+}
+
 func testInstall(t *testing.T, exe, libgoa, libgoh string, buildcmd ...string) {
 	t.Helper()
 	cmd := exec.Command(buildcmd[0], buildcmd[1:]...)
@@ -172,10 +211,12 @@
 		t.Logf("%s", out)
 		t.Fatal(err)
 	}
-	defer func() {
-		os.Remove(libgoa)
-		os.Remove(libgoh)
-	}()
+	if !testWork {
+		defer func() {
+			os.Remove(libgoa)
+			os.Remove(libgoh)
+		}()
+	}
 
 	ccArgs := append(cc, "-o", exe, "main.c")
 	if GOOS == "windows" {
@@ -191,7 +232,9 @@
 		t.Logf("%s", out)
 		t.Fatal(err)
 	}
-	defer os.Remove(exe)
+	if !testWork {
+		defer os.Remove(exe)
+	}
 
 	binArgs := append(cmdToRun(exe), "arg1", "arg2")
 	cmd = exec.Command(binArgs[0], binArgs[1:]...)
@@ -227,17 +270,27 @@
 }
 
 func TestInstall(t *testing.T) {
-	defer os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+	if !testWork {
+		defer os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+	}
 
 	libgoa := "libgo.a"
 	if runtime.Compiler == "gccgo" {
 		libgoa = "liblibgo.a"
 	}
 
+	// Generate the p.h header file.
+	//
+	// 'go install -i -buildmode=c-archive ./libgo' would do that too, but that
+	// would also attempt to install transitive standard-library dependencies to
+	// GOROOT, and we cannot assume that GOROOT is writable. (A non-root user may
+	// be running this test in a GOROOT owned by root.)
+	genHeader(t, "p.h", "./p")
+
 	testInstall(t, "./testp1"+exeSuffix,
 		filepath.Join(libgodir, libgoa),
 		filepath.Join(libgodir, "libgo.h"),
-		"go", "install", "-i", "-buildmode=c-archive", "./libgo")
+		"go", "install", "-buildmode=c-archive", "./libgo")
 
 	// Test building libgo other than installing it.
 	// Header files are now present.
@@ -259,12 +312,14 @@
 		t.Skip("skipping signal test on Windows")
 	}
 
-	defer func() {
-		os.Remove("libgo2.a")
-		os.Remove("libgo2.h")
-		os.Remove("testp")
-		os.RemoveAll(filepath.Join(GOPATH, "pkg"))
-	}()
+	if !testWork {
+		defer func() {
+			os.Remove("libgo2.a")
+			os.Remove("libgo2.h")
+			os.Remove("testp")
+			os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+		}()
+	}
 
 	cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo2.a", "./libgo2")
 	if out, err := cmd.CombinedOutput(); err != nil {
@@ -282,7 +337,13 @@
 		t.Fatal(err)
 	}
 
-	if out, err := exec.Command(bin[0], bin[1:]...).CombinedOutput(); err != nil {
+	darwin := "0"
+	if runtime.GOOS == "darwin" {
+		darwin = "1"
+	}
+	cmd = exec.Command(bin[0], append(bin[1:], darwin)...)
+
+	if out, err := cmd.CombinedOutput(); err != nil {
 		t.Logf("%s", out)
 		t.Fatal(err)
 	}
@@ -291,12 +352,14 @@
 func TestSignalForwarding(t *testing.T) {
 	checkSignalForwardingTest(t)
 
-	defer func() {
-		os.Remove("libgo2.a")
-		os.Remove("libgo2.h")
-		os.Remove("testp")
-		os.RemoveAll(filepath.Join(GOPATH, "pkg"))
-	}()
+	if !testWork {
+		defer func() {
+			os.Remove("libgo2.a")
+			os.Remove("libgo2.h")
+			os.Remove("testp")
+			os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+		}()
+	}
 
 	cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo2.a", "./libgo2")
 	if out, err := cmd.CombinedOutput(); err != nil {
@@ -320,12 +383,15 @@
 	t.Logf("%s", out)
 	expectSignal(t, err, syscall.SIGSEGV)
 
-	// Test SIGPIPE forwarding
-	cmd = exec.Command(bin[0], append(bin[1:], "3")...)
+	// SIGPIPE is never forwarded on darwin. See golang.org/issue/33384.
+	if runtime.GOOS != "darwin" {
+		// Test SIGPIPE forwarding
+		cmd = exec.Command(bin[0], append(bin[1:], "3")...)
 
-	out, err = cmd.CombinedOutput()
-	t.Logf("%s", out)
-	expectSignal(t, err, syscall.SIGPIPE)
+		out, err = cmd.CombinedOutput()
+		t.Logf("%s", out)
+		expectSignal(t, err, syscall.SIGPIPE)
+	}
 }
 
 func TestSignalForwardingExternal(t *testing.T) {
@@ -336,12 +402,14 @@
 	}
 	checkSignalForwardingTest(t)
 
-	defer func() {
-		os.Remove("libgo2.a")
-		os.Remove("libgo2.h")
-		os.Remove("testp")
-		os.RemoveAll(filepath.Join(GOPATH, "pkg"))
-	}()
+	if !testWork {
+		defer func() {
+			os.Remove("libgo2.a")
+			os.Remove("libgo2.h")
+			os.Remove("testp")
+			os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+		}()
+	}
 
 	cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo2.a", "./libgo2")
 	if out, err := cmd.CombinedOutput(); err != nil {
@@ -451,12 +519,14 @@
 		t.Skip("skipping signal test on Windows")
 	}
 
-	defer func() {
-		os.Remove("libgo3.a")
-		os.Remove("libgo3.h")
-		os.Remove("testp")
-		os.RemoveAll(filepath.Join(GOPATH, "pkg"))
-	}()
+	if !testWork {
+		defer func() {
+			os.Remove("libgo3.a")
+			os.Remove("libgo3.h")
+			os.Remove("testp")
+			os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+		}()
+	}
 
 	cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo3.a", "./libgo3")
 	if out, err := cmd.CombinedOutput(); err != nil {
@@ -486,12 +556,14 @@
 		t.Skip("skipping signal test on Windows")
 	}
 
-	defer func() {
-		os.Remove("libgo4.a")
-		os.Remove("libgo4.h")
-		os.Remove("testp")
-		os.RemoveAll(filepath.Join(GOPATH, "pkg"))
-	}()
+	if !testWork {
+		defer func() {
+			os.Remove("libgo4.a")
+			os.Remove("libgo4.h")
+			os.Remove("testp")
+			os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+		}()
+	}
 
 	cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo4.a", "./libgo4")
 	if out, err := cmd.CombinedOutput(); err != nil {
@@ -535,13 +607,15 @@
 		t.Skip("shell scripts are not executable on iOS hosts")
 	}
 
-	defer func() {
-		os.Remove("libgo4.a")
-		os.Remove("libgo4.h")
-		os.Remove("testar")
-		os.Remove("testar.ran")
-		os.RemoveAll(filepath.Join(GOPATH, "pkg"))
-	}()
+	if !testWork {
+		defer func() {
+			os.Remove("libgo4.a")
+			os.Remove("libgo4.h")
+			os.Remove("testar")
+			os.Remove("testar.ran")
+			os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+		}()
+	}
 
 	os.Remove("testar")
 	dir, err := os.Getwd()
@@ -575,12 +649,22 @@
 		t.Skipf("skipping PIE test on %s", GOOS)
 	}
 
-	defer func() {
-		os.Remove("testp" + exeSuffix)
-		os.RemoveAll(filepath.Join(GOPATH, "pkg"))
-	}()
+	if !testWork {
+		defer func() {
+			os.Remove("testp" + exeSuffix)
+			os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+		}()
+	}
 
-	cmd := exec.Command("go", "install", "-i", "-buildmode=c-archive", "./libgo")
+	// Generate the p.h header file.
+	//
+	// 'go install -i -buildmode=c-archive ./libgo' would do that too, but that
+	// would also attempt to install transitive standard-library dependencies to
+	// GOROOT, and we cannot assume that GOROOT is writable. (A non-root user may
+	// be running this test in a GOROOT owned by root.)
+	genHeader(t, "p.h", "./p")
+
+	cmd := exec.Command("go", "install", "-buildmode=c-archive", "./libgo")
 	if out, err := cmd.CombinedOutput(); err != nil {
 		t.Logf("%s", out)
 		t.Fatal(err)
@@ -660,11 +744,13 @@
 
 	t.Parallel()
 
-	defer func() {
-		os.Remove("testp6" + exeSuffix)
-		os.Remove("libgo6.a")
-		os.Remove("libgo6.h")
-	}()
+	if !testWork {
+		defer func() {
+			os.Remove("testp6" + exeSuffix)
+			os.Remove("libgo6.a")
+			os.Remove("libgo6.h")
+		}()
+	}
 
 	cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo6.a", "./libgo6")
 	if out, err := cmd.CombinedOutput(); err != nil {
@@ -700,10 +786,12 @@
 	// For simplicity, reuse the signal forwarding test.
 	checkSignalForwardingTest(t)
 
-	defer func() {
-		os.Remove("libgo2.a")
-		os.Remove("libgo2.h")
-	}()
+	if !testWork {
+		defer func() {
+			os.Remove("libgo2.a")
+			os.Remove("libgo2.h")
+		}()
+	}
 
 	cmd := exec.Command("go", "build", "-buildmode=c-archive", "-gcflags=-shared=false", "-o", "libgo2.a", "./libgo2")
 	t.Log(cmd.Args)
@@ -742,23 +830,35 @@
 	if err != nil {
 		t.Fatal(err)
 	}
-	defer os.Remove(exe)
+	if !testWork {
+		defer os.Remove(exe)
+	}
 
-	binArgs := append(cmdToRun(exe), "3")
+	binArgs := append(cmdToRun(exe), "1")
 	t.Log(binArgs)
 	out, err = exec.Command(binArgs[0], binArgs[1:]...).CombinedOutput()
 	t.Logf("%s", out)
-	expectSignal(t, err, syscall.SIGPIPE)
+	expectSignal(t, err, syscall.SIGSEGV)
+
+	// SIGPIPE is never forwarded on darwin. See golang.org/issue/33384.
+	if runtime.GOOS != "darwin" {
+		binArgs := append(cmdToRun(exe), "3")
+		t.Log(binArgs)
+		out, err = exec.Command(binArgs[0], binArgs[1:]...).CombinedOutput()
+		t.Logf("%s", out)
+		expectSignal(t, err, syscall.SIGPIPE)
+	}
 }
 
-// Test that installing a second time recreates the header files.
+// Test that installing a second time recreates the header file.
 func TestCachedInstall(t *testing.T) {
-	defer os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+	if !testWork {
+		defer os.RemoveAll(filepath.Join(GOPATH, "pkg"))
+	}
 
-	h1 := filepath.Join(libgodir, "libgo.h")
-	h2 := filepath.Join(libgodir, "p.h")
+	h := filepath.Join(libgodir, "libgo.h")
 
-	buildcmd := []string{"go", "install", "-i", "-buildmode=c-archive", "./libgo"}
+	buildcmd := []string{"go", "install", "-buildmode=c-archive", "./libgo"}
 
 	cmd := exec.Command(buildcmd[0], buildcmd[1:]...)
 	t.Log(buildcmd)
@@ -767,17 +867,11 @@
 		t.Fatal(err)
 	}
 
-	if _, err := os.Stat(h1); err != nil {
+	if _, err := os.Stat(h); err != nil {
 		t.Errorf("libgo.h not installed: %v", err)
 	}
-	if _, err := os.Stat(h2); err != nil {
-		t.Errorf("p.h not installed: %v", err)
-	}
 
-	if err := os.Remove(h1); err != nil {
-		t.Fatal(err)
-	}
-	if err := os.Remove(h2); err != nil {
+	if err := os.Remove(h); err != nil {
 		t.Fatal(err)
 	}
 
@@ -788,10 +882,58 @@
 		t.Fatal(err)
 	}
 
-	if _, err := os.Stat(h1); err != nil {
+	if _, err := os.Stat(h); err != nil {
 		t.Errorf("libgo.h not installed in second run: %v", err)
 	}
-	if _, err := os.Stat(h2); err != nil {
-		t.Errorf("p.h not installed in second run: %v", err)
+}
+
+// Issue 35294.
+func TestManyCalls(t *testing.T) {
+	t.Parallel()
+
+	if !testWork {
+		defer func() {
+			os.Remove("testp7" + exeSuffix)
+			os.Remove("libgo7.a")
+			os.Remove("libgo7.h")
+		}()
+	}
+
+	cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo7.a", "./libgo7")
+	if out, err := cmd.CombinedOutput(); err != nil {
+		t.Logf("%s", out)
+		t.Fatal(err)
+	}
+	checkLineComments(t, "libgo7.h")
+
+	ccArgs := append(cc, "-o", "testp7"+exeSuffix, "main7.c", "libgo7.a")
+	if runtime.Compiler == "gccgo" {
+		ccArgs = append(ccArgs, "-lgo")
+	}
+	if out, err := exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput(); err != nil {
+		t.Logf("%s", out)
+		t.Fatal(err)
+	}
+
+	argv := cmdToRun("./testp7")
+	cmd = exec.Command(argv[0], argv[1:]...)
+	var sb strings.Builder
+	cmd.Stdout = &sb
+	cmd.Stderr = &sb
+	if err := cmd.Start(); err != nil {
+		t.Fatal(err)
+	}
+
+	timer := time.AfterFunc(time.Minute,
+		func() {
+			t.Error("test program timed out")
+			cmd.Process.Kill()
+		},
+	)
+	defer timer.Stop()
+
+	if err := cmd.Wait(); err != nil {
+		t.Log(sb.String())
+		t.Error(err)
 	}
 }
diff --git a/libgo/misc/cgo/testcarchive/overlaydir_test.go b/libgo/misc/cgo/testcarchive/overlaydir_test.go
index 68878e4..67974c5 100644
--- a/libgo/misc/cgo/testcarchive/overlaydir_test.go
+++ b/libgo/misc/cgo/testcarchive/overlaydir_test.go
@@ -21,12 +21,9 @@
 		return err
 	}
 
-	symBase, err := filepath.Rel(srcRoot, dstRoot)
+	srcRoot, err := filepath.Abs(srcRoot)
 	if err != nil {
-		symBase, err = filepath.Abs(srcRoot)
-		if err != nil {
-			return err
-		}
+		return err
 	}
 
 	return filepath.Walk(srcRoot, func(srcPath string, info os.FileInfo, err error) error {
@@ -52,11 +49,11 @@
 		// Always copy directories (don't symlink them).
 		// If we add a file in the overlay, we don't want to add it in the original.
 		if info.IsDir() {
-			return os.Mkdir(dstPath, perm)
+			return os.MkdirAll(dstPath, perm|0200)
 		}
 
 		// If the OS supports symlinks, use them instead of copying bytes.
-		if err := os.Symlink(filepath.Join(symBase, suffix), dstPath); err == nil {
+		if err := os.Symlink(srcPath, dstPath); err == nil {
 			return nil
 		}
 
diff --git a/libgo/misc/cgo/testcarchive/testdata/libgo7/sink.go b/libgo/misc/cgo/testcarchive/testdata/libgo7/sink.go
new file mode 100644
index 0000000..d61638b
--- /dev/null
+++ b/libgo/misc/cgo/testcarchive/testdata/libgo7/sink.go
@@ -0,0 +1,17 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import "C"
+
+var sink []byte
+
+//export GoFunction7
+func GoFunction7() {
+	sink = make([]byte, 4096)
+}
+
+func main() {
+}
diff --git a/libgo/misc/cgo/testcarchive/testdata/main2.c b/libgo/misc/cgo/testcarchive/testdata/main2.c
index 769cd49..da35673 100644
--- a/libgo/misc/cgo/testcarchive/testdata/main2.c
+++ b/libgo/misc/cgo/testcarchive/testdata/main2.c
@@ -123,8 +123,12 @@
 	sigset_t mask;
 	int i;
 	struct timespec ts;
+	int darwin;
 
-	verbose = argc > 1;
+	darwin = atoi(argv[1]);
+
+	verbose = argc > 2;
+
 	setvbuf(stdout, NULL, _IONBF, 0);
 
 	// Call setsid so that we can use kill(0, SIGIO) below.
@@ -186,22 +190,25 @@
 		printf("provoking SIGPIPE\n");
 	}
 
-	GoRaiseSIGPIPE();
+	// SIGPIPE is never forwarded on Darwin, see golang.org/issue/33384.
+	if (!darwin) {
+		GoRaiseSIGPIPE();
 
-	if (verbose) {
-		printf("waiting for sigpipeSeen\n");
-	}
+		if (verbose) {
+			printf("waiting for sigpipeSeen\n");
+		}
 
-	// Wait until the signal has been delivered.
-	i = 0;
-	while (!sigpipeSeen) {
-		ts.tv_sec = 0;
-		ts.tv_nsec = 1000000;
-		nanosleep(&ts, NULL);
-		i++;
-		if (i > 5000) {
-			fprintf(stderr, "looping too long waiting for SIGPIPE\n");
-			exit(EXIT_FAILURE);
+		// Wait until the signal has been delivered.
+		i = 0;
+		while (!sigpipeSeen) {
+			ts.tv_sec = 0;
+			ts.tv_nsec = 1000000;
+			nanosleep(&ts, NULL);
+			i++;
+			if (i > 5000) {
+				fprintf(stderr, "looping too long waiting for SIGPIPE\n");
+				exit(EXIT_FAILURE);
+			}
 		}
 	}
 
diff --git a/libgo/misc/cgo/testcarchive/testdata/main3.c b/libgo/misc/cgo/testcarchive/testdata/main3.c
index 60a16cf..4d11d9c 100644
--- a/libgo/misc/cgo/testcarchive/testdata/main3.c
+++ b/libgo/misc/cgo/testcarchive/testdata/main3.c
@@ -12,6 +12,7 @@
 #include <time.h>
 #include <sched.h>
 #include <unistd.h>
+#include <pthread.h>
 
 #include "libgo3.h"
 
@@ -51,11 +52,18 @@
 	}
 }
 
+static void *provokeSIGPIPE(void *arg) {
+	ProvokeSIGPIPE();
+	return NULL;
+}
+
 int main(int argc, char** argv) {
 	int verbose;
 	struct sigaction sa;
 	int i;
 	struct timespec ts;
+	int res;
+	pthread_t tid;
 
 	verbose = argc > 2;
 	setvbuf(stdout, NULL, _IONBF, 0);
@@ -68,6 +76,19 @@
 	// a non-default SIGPIPE handler before the runtime initializes.
 	ProvokeSIGPIPE();
 
+	// Test that SIGPIPE on a non-main thread is also handled by Go.
+	res = pthread_create(&tid, NULL, provokeSIGPIPE, NULL);
+	if (res != 0) {
+		fprintf(stderr, "pthread_create: %s\n", strerror(res));
+		exit(EXIT_FAILURE);
+	}
+
+	res = pthread_join(tid, NULL);
+	if (res != 0) {
+		fprintf(stderr, "pthread_join: %s\n", strerror(res));
+		exit(EXIT_FAILURE);
+	}
+
 	if (verbose) {
 		printf("calling sigaction\n");
 	}
diff --git a/libgo/misc/cgo/testcarchive/testdata/main7.c b/libgo/misc/cgo/testcarchive/testdata/main7.c
new file mode 100644
index 0000000..2c6d98d
--- /dev/null
+++ b/libgo/misc/cgo/testcarchive/testdata/main7.c
@@ -0,0 +1,18 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Test that lots of calls don't deadlock.
+
+#include <stdio.h>
+
+#include "libgo7.h"
+
+int main() {
+	int i;
+
+	for (i = 0; i < 100000; i++) {
+		GoFunction7();
+	}
+	return 0;
+}
diff --git a/libgo/misc/cgo/testcshared/cshared_test.go b/libgo/misc/cgo/testcshared/cshared_test.go
index daef3a9..cb95153 100644
--- a/libgo/misc/cgo/testcshared/cshared_test.go
+++ b/libgo/misc/cgo/testcshared/cshared_test.go
@@ -103,7 +103,7 @@
 		// TODO(crawshaw): can we do better?
 		cc = append(cc, []string{"-framework", "CoreFoundation", "-framework", "Foundation"}...)
 	case "android":
-		cc = append(cc, "-pie", "-fuse-ld=gold")
+		cc = append(cc, "-pie")
 	}
 	libgodir := GOOS + "_" + GOARCH
 	switch GOOS {
@@ -130,8 +130,6 @@
 	defer os.RemoveAll(GOPATH)
 	os.Setenv("GOPATH", GOPATH)
 
-	// Copy testdata into GOPATH/src/testarchive, along with a go.mod file
-	// declaring the same path.
 	modRoot := filepath.Join(GOPATH, "src", "testcshared")
 	if err := overlayDir(modRoot, "testdata"); err != nil {
 		log.Panic(err)
@@ -257,14 +255,38 @@
 }
 
 func createHeaders() error {
-	args := []string{"go", "install", "-i", "-buildmode=c-shared",
-		"-installsuffix", "testcshared", "./libgo"}
+	// The 'cgo' command generates a number of additional artifacts,
+	// but we're only interested in the header.
+	// Shunt the rest of the outputs to a temporary directory.
+	objDir, err := ioutil.TempDir("", "testcshared_obj")
+	if err != nil {
+		return err
+	}
+	defer os.RemoveAll(objDir)
+
+	// Generate a C header file for p, which is a non-main dependency
+	// of main package libgo.
+	//
+	// TODO(golang.org/issue/35715): This should be simpler.
+	args := []string{"go", "tool", "cgo",
+		"-objdir", objDir,
+		"-exportheader", "p.h",
+		filepath.Join(".", "p", "p.go")}
 	cmd := exec.Command(args[0], args[1:]...)
 	out, err := cmd.CombinedOutput()
 	if err != nil {
 		return fmt.Errorf("command failed: %v\n%v\n%s\n", args, err, out)
 	}
 
+	// Generate a C header file for libgo itself.
+	args = []string{"go", "install", "-buildmode=c-shared",
+		"-installsuffix", "testcshared", "./libgo"}
+	cmd = exec.Command(args[0], args[1:]...)
+	out, err = cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("command failed: %v\n%v\n%s\n", args, err, out)
+	}
+
 	args = []string{"go", "build", "-buildmode=c-shared",
 		"-installsuffix", "testcshared",
 		"-o", libgoname,
@@ -522,7 +544,7 @@
 	}
 }
 
-// Test that installing a second time recreates the header files.
+// Test that installing a second time recreates the header file.
 func TestCachedInstall(t *testing.T) {
 	tmpdir, err := ioutil.TempDir("", "cshared")
 	if err != nil {
@@ -536,7 +558,7 @@
 
 	env := append(os.Environ(), "GOPATH="+tmpdir, "GOBIN="+filepath.Join(tmpdir, "bin"))
 
-	buildcmd := []string{"go", "install", "-x", "-i", "-buildmode=c-shared", "-installsuffix", "testcshared", "./libgo"}
+	buildcmd := []string{"go", "install", "-x", "-buildmode=c-shared", "-installsuffix", "testcshared", "./libgo"}
 
 	cmd := exec.Command(buildcmd[0], buildcmd[1:]...)
 	cmd.Dir = filepath.Join(tmpdir, "src", "testcshared")
@@ -577,16 +599,10 @@
 	if libgoh == "" {
 		t.Fatal("libgo.h not installed")
 	}
-	if ph == "" {
-		t.Fatal("p.h not installed")
-	}
 
 	if err := os.Remove(libgoh); err != nil {
 		t.Fatal(err)
 	}
-	if err := os.Remove(ph); err != nil {
-		t.Fatal(err)
-	}
 
 	cmd = exec.Command(buildcmd[0], buildcmd[1:]...)
 	cmd.Dir = filepath.Join(tmpdir, "src", "testcshared")
@@ -601,9 +617,6 @@
 	if _, err := os.Stat(libgoh); err != nil {
 		t.Errorf("libgo.h not installed in second run: %v", err)
 	}
-	if _, err := os.Stat(ph); err != nil {
-		t.Errorf("p.h not installed in second run: %v", err)
-	}
 }
 
 // copyFile copies src to dst.
diff --git a/libgo/misc/cgo/testcshared/overlaydir_test.go b/libgo/misc/cgo/testcshared/overlaydir_test.go
index 1eaabf6..85d6b44 100644
--- a/libgo/misc/cgo/testcshared/overlaydir_test.go
+++ b/libgo/misc/cgo/testcshared/overlaydir_test.go
@@ -21,12 +21,9 @@
 		return err
 	}
 
-	symBase, err := filepath.Rel(srcRoot, dstRoot)
+	srcRoot, err := filepath.Abs(srcRoot)
 	if err != nil {
-		symBase, err = filepath.Abs(srcRoot)
-		if err != nil {
-			return err
-		}
+		return err
 	}
 
 	return filepath.Walk(srcRoot, func(srcPath string, info os.FileInfo, err error) error {
@@ -52,11 +49,11 @@
 		// Always copy directories (don't symlink them).
 		// If we add a file in the overlay, we don't want to add it in the original.
 		if info.IsDir() {
-			return os.Mkdir(dstPath, perm)
+			return os.MkdirAll(dstPath, perm|0200)
 		}
 
 		// If the OS supports symlinks, use them instead of copying bytes.
-		if err := os.Symlink(filepath.Join(symBase, suffix), dstPath); err == nil {
+		if err := os.Symlink(srcPath, dstPath); err == nil {
 			return nil
 		}
 
diff --git a/libgo/misc/cgo/testgodefs/test.bash b/libgo/misc/cgo/testgodefs/test.bash
deleted file mode 100755
index e4ce2ee..0000000
--- a/libgo/misc/cgo/testgodefs/test.bash
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright 2014 The Go Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-
-# We are testing cgo -godefs, which translates Go files that use
-# import "C" into Go files with Go definitions of types defined in the
-# import "C" block.  Add more tests here.
-FILE_PREFIXES="anonunion issue8478 fieldtypedef"
-
-cd testdata
-
-RM=
-for FP in $FILE_PREFIXES
-do
-  go tool cgo -godefs -srcdir . ${FP}.go > ${FP}_defs.go
-  RM="${RM} ${FP}_defs.go"
-done
-
-go build -o testgodefs . && ./testgodefs
-EXIT=$?
-rm -rf _obj testgodefs ${RM}
-exit $EXIT
diff --git a/libgo/misc/cgo/testgodefs/testgodefs_test.go b/libgo/misc/cgo/testgodefs/testgodefs_test.go
new file mode 100644
index 0000000..c02c3ff
--- /dev/null
+++ b/libgo/misc/cgo/testgodefs/testgodefs_test.go
@@ -0,0 +1,83 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package testgodefs
+
+import (
+	"bytes"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+// We are testing cgo -godefs, which translates Go files that use
+// import "C" into Go files with Go definitions of types defined in the
+// import "C" block.  Add more tests here.
+var filePrefixes = []string{
+	"anonunion",
+	"issue8478",
+	"fieldtypedef",
+}
+
+func TestGoDefs(t *testing.T) {
+	testdata, err := filepath.Abs("testdata")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	gopath, err := ioutil.TempDir("", "testgodefs-gopath")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(gopath)
+
+	dir := filepath.Join(gopath, "src", "testgodefs")
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		t.Fatal(err)
+	}
+
+	for _, fp := range filePrefixes {
+		cmd := exec.Command("go", "tool", "cgo",
+			"-godefs",
+			"-srcdir", testdata,
+			"-objdir", dir,
+			fp+".go")
+		cmd.Stderr = new(bytes.Buffer)
+
+		out, err := cmd.Output()
+		if err != nil {
+			t.Fatalf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, cmd.Stderr)
+		}
+
+		if err := ioutil.WriteFile(filepath.Join(dir, fp+"_defs.go"), out, 0644); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	main, err := ioutil.ReadFile(filepath.Join("testdata", "main.go"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := ioutil.WriteFile(filepath.Join(dir, "main.go"), main, 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := ioutil.WriteFile(filepath.Join(dir, "go.mod"), []byte("module testgodefs\ngo 1.14\n"), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	// Use 'go run' to build and run the resulting binary in a single step,
+	// instead of invoking 'go build' and the resulting binary separately, so that
+	// this test can pass on mobile builders, which do not copy artifacts back
+	// from remote invocations.
+	cmd := exec.Command("go", "run", ".")
+	cmd.Env = append(os.Environ(), "GOPATH="+gopath)
+	cmd.Dir = dir
+	if out, err := cmd.CombinedOutput(); err != nil {
+		t.Fatalf("%s [%s]: %v\n%s", strings.Join(cmd.Args, " "), dir, err, out)
+	}
+}
diff --git a/libgo/misc/cgo/testplugin/overlaydir_test.go b/libgo/misc/cgo/testplugin/overlaydir_test.go
index b68436a..e2c32d8 100644
--- a/libgo/misc/cgo/testplugin/overlaydir_test.go
+++ b/libgo/misc/cgo/testplugin/overlaydir_test.go
@@ -21,12 +21,9 @@
 		return err
 	}
 
-	symBase, err := filepath.Rel(srcRoot, dstRoot)
+	srcRoot, err := filepath.Abs(srcRoot)
 	if err != nil {
-		symBase, err = filepath.Abs(srcRoot)
-		if err != nil {
-			return err
-		}
+		return err
 	}
 
 	return filepath.Walk(srcRoot, func(srcPath string, info os.FileInfo, err error) error {
@@ -52,11 +49,11 @@
 		// Always copy directories (don't symlink them).
 		// If we add a file in the overlay, we don't want to add it in the original.
 		if info.IsDir() {
-			return os.Mkdir(dstPath, perm)
+			return os.MkdirAll(dstPath, perm|0200)
 		}
 
 		// If the OS supports symlinks, use them instead of copying bytes.
-		if err := os.Symlink(filepath.Join(symBase, suffix), dstPath); err == nil {
+		if err := os.Symlink(srcPath, dstPath); err == nil {
 			return nil
 		}
 
diff --git a/libgo/misc/cgo/testplugin/plugin_test.go b/libgo/misc/cgo/testplugin/plugin_test.go
index 7e2b6eb..ab98f61 100644
--- a/libgo/misc/cgo/testplugin/plugin_test.go
+++ b/libgo/misc/cgo/testplugin/plugin_test.go
@@ -14,7 +14,6 @@
 	"os"
 	"os/exec"
 	"path/filepath"
-	"runtime"
 	"strings"
 	"testing"
 	"time"
@@ -71,7 +70,7 @@
 
 	os.Setenv("LD_LIBRARY_PATH", modRoot)
 
-	goCmd(nil, "build", "-i", "-buildmode=plugin", "./plugin1")
+	goCmd(nil, "build", "-buildmode=plugin", "./plugin1")
 	goCmd(nil, "build", "-buildmode=plugin", "./plugin2")
 	so, err := ioutil.ReadFile("plugin2.so")
 	if err != nil {
@@ -114,11 +113,7 @@
 
 func TestDWARFSections(t *testing.T) {
 	// test that DWARF sections are emitted for plugins and programs importing "plugin"
-	if runtime.GOOS != "darwin" {
-		// On macOS, for some reason, the linker doesn't add debug sections to .so,
-		// see issue #27502.
-		goCmd(t, "run", "./checkdwarf/main.go", "plugin2.so", "plugin2.UnexportedNameReuse")
-	}
+	goCmd(t, "run", "./checkdwarf/main.go", "plugin2.so", "plugin2.UnexportedNameReuse")
 	goCmd(t, "run", "./checkdwarf/main.go", "./host.exe", "main.main")
 }
 
diff --git a/libgo/misc/cgo/testshared/overlaydir_test.go b/libgo/misc/cgo/testshared/overlaydir_test.go
index 68be056..eb587a2 100644
--- a/libgo/misc/cgo/testshared/overlaydir_test.go
+++ b/libgo/misc/cgo/testshared/overlaydir_test.go
@@ -21,12 +21,9 @@
 		return err
 	}
 
-	symBase, err := filepath.Rel(srcRoot, dstRoot)
+	srcRoot, err := filepath.Abs(srcRoot)
 	if err != nil {
-		symBase, err = filepath.Abs(srcRoot)
-		if err != nil {
-			return err
-		}
+		return err
 	}
 
 	return filepath.Walk(srcRoot, func(srcPath string, info os.FileInfo, err error) error {
@@ -52,11 +49,11 @@
 		// Always copy directories (don't symlink them).
 		// If we add a file in the overlay, we don't want to add it in the original.
 		if info.IsDir() {
-			return os.Mkdir(dstPath, perm)
+			return os.MkdirAll(dstPath, perm|0200)
 		}
 
 		// If the OS supports symlinks, use them instead of copying bytes.
-		if err := os.Symlink(filepath.Join(symBase, suffix), dstPath); err == nil {
+		if err := os.Symlink(srcPath, dstPath); err == nil {
 			return nil
 		}
 
diff --git a/libgo/misc/cgo/testshared/shared_test.go b/libgo/misc/cgo/testshared/shared_test.go
index 9d16338..b9ef6da 100644
--- a/libgo/misc/cgo/testshared/shared_test.go
+++ b/libgo/misc/cgo/testshared/shared_test.go
@@ -9,31 +9,33 @@
 	"bytes"
 	"debug/elf"
 	"encoding/binary"
-	"errors"
 	"flag"
 	"fmt"
 	"go/build"
 	"io"
 	"io/ioutil"
 	"log"
-	"math/rand"
 	"os"
 	"os/exec"
 	"path/filepath"
 	"regexp"
 	"runtime"
+	"sort"
 	"strings"
 	"testing"
 	"time"
 )
 
-var gopathInstallDir, gorootInstallDir, suffix string
+var gopathInstallDir, gorootInstallDir string
 
 // This is the smallest set of packages we can link into a shared
 // library (runtime/cgo is built implicitly).
 var minpkgs = []string{"runtime", "sync/atomic"}
 var soname = "libruntime,sync-atomic.so"
 
+var testX = flag.Bool("testx", false, "if true, pass -x to 'go' subcommands invoked by the test")
+var testWork = flag.Bool("testwork", false, "if true, log and do not delete the temporary working directory")
+
 // run runs a command and calls t.Errorf if it fails.
 func run(t *testing.T, msg string, args ...string) {
 	c := exec.Command(args[0], args[1:]...)
@@ -45,31 +47,34 @@
 // goCmd invokes the go tool with the installsuffix set up by TestMain. It calls
 // t.Fatalf if the command fails.
 func goCmd(t *testing.T, args ...string) string {
-	newargs := []string{args[0], "-installsuffix=" + suffix}
-	if testing.Verbose() {
+	newargs := []string{args[0]}
+	if *testX {
 		newargs = append(newargs, "-x")
 	}
 	newargs = append(newargs, args[1:]...)
 	c := exec.Command("go", newargs...)
-
 	stderr := new(strings.Builder)
-	var output []byte
-	var err error
-	if testing.Verbose() {
-		fmt.Printf("+ go %s\n", strings.Join(args, " "))
+	c.Stderr = stderr
+
+	if testing.Verbose() && t == nil {
+		fmt.Fprintf(os.Stderr, "+ go %s\n", strings.Join(args, " "))
 		c.Stderr = os.Stderr
-		stderr.WriteString("(output above)")
-	} else {
-		c.Stderr = stderr
 	}
-	output, err = c.Output()
+	output, err := c.Output()
 
 	if err != nil {
 		if t != nil {
 			t.Helper()
 			t.Fatalf("executing %s failed %v:\n%s", strings.Join(c.Args, " "), err, stderr)
 		} else {
-			log.Fatalf("executing %s failed %v:\n%s", strings.Join(c.Args, " "), err, stderr)
+			// Panic instead of using log.Fatalf so that deferred cleanup may run in testMain.
+			log.Panicf("executing %s failed %v:\n%s", strings.Join(c.Args, " "), err, stderr)
+		}
+	}
+	if testing.Verbose() && t != nil {
+		t.Logf("go %s", strings.Join(args, " "))
+		if stderr.Len() > 0 {
+			t.Logf("%s", stderr)
 		}
 	}
 	return string(bytes.TrimSpace(output))
@@ -77,73 +82,61 @@
 
 // TestMain calls testMain so that the latter can use defer (TestMain exits with os.Exit).
 func testMain(m *testing.M) (int, error) {
-	// Because go install -buildmode=shared $standard_library_package always
-	// installs into $GOROOT, here are some gymnastics to come up with a unique
-	// installsuffix to use in this test that we can clean up afterwards.
+	workDir, err := ioutil.TempDir("", "shared_test")
+	if err != nil {
+		return 0, err
+	}
+	if *testWork || testing.Verbose() {
+		fmt.Printf("+ mkdir -p %s\n", workDir)
+	}
+	if !*testWork {
+		defer os.RemoveAll(workDir)
+	}
+
+	// Some tests need to edit the source in GOPATH, so copy this directory to a
+	// temporary directory and chdir to that.
+	gopath := filepath.Join(workDir, "gopath")
+	modRoot, err := cloneTestdataModule(gopath)
+	if err != nil {
+		return 0, err
+	}
+	if testing.Verbose() {
+		fmt.Printf("+ export GOPATH=%s\n", gopath)
+		fmt.Printf("+ cd %s\n", modRoot)
+	}
+	os.Setenv("GOPATH", gopath)
+	os.Chdir(modRoot)
+	os.Setenv("PWD", modRoot)
+
+	// The test also needs to install libraries into GOROOT/pkg, so copy the
+	// subset of GOROOT that we need.
+	//
+	// TODO(golang.org/issue/28553): Rework -buildmode=shared so that it does not
+	// need to write to GOROOT.
+	goroot := filepath.Join(workDir, "goroot")
+	if err := cloneGOROOTDeps(goroot); err != nil {
+		return 0, err
+	}
+	if testing.Verbose() {
+		fmt.Fprintf(os.Stderr, "+ export GOROOT=%s\n", goroot)
+	}
+	os.Setenv("GOROOT", goroot)
+
 	myContext := build.Default
+	myContext.GOROOT = goroot
+	myContext.GOPATH = gopath
 	runtimeP, err := myContext.Import("runtime", ".", build.ImportComment)
 	if err != nil {
 		return 0, fmt.Errorf("import failed: %v", err)
 	}
-	for i := 0; i < 10000; i++ {
-		try := fmt.Sprintf("%s_%d_dynlink", runtimeP.PkgTargetRoot, rand.Int63())
-		err = os.Mkdir(try, 0700)
-		if os.IsExist(err) {
-			continue
-		}
-		if err == nil {
-			gorootInstallDir = try
-		}
-		break
-	}
-	if err != nil {
-		return 0, fmt.Errorf("can't create temporary directory: %v", err)
-	}
-	if gorootInstallDir == "" {
-		return 0, errors.New("could not create temporary directory after 10000 tries")
-	}
-	if testing.Verbose() {
-		fmt.Printf("+ mkdir -p %s\n", gorootInstallDir)
-	}
-	defer os.RemoveAll(gorootInstallDir)
-
-	// Some tests need to edit the source in GOPATH, so copy this directory to a
-	// temporary directory and chdir to that.
-	gopath, err := ioutil.TempDir("", "testshared")
-	if err != nil {
-		return 0, fmt.Errorf("TempDir failed: %v", err)
-	}
-	if testing.Verbose() {
-		fmt.Printf("+ mkdir -p %s\n", gopath)
-	}
-	defer os.RemoveAll(gopath)
-
-	modRoot := filepath.Join(gopath, "src", "testshared")
-	if err := overlayDir(modRoot, "testdata"); err != nil {
-		return 0, err
-	}
-	if testing.Verbose() {
-		fmt.Printf("+ cd %s\n", modRoot)
-	}
-	os.Chdir(modRoot)
-	os.Setenv("PWD", modRoot)
-	if err := ioutil.WriteFile("go.mod", []byte("module testshared\n"), 0666); err != nil {
-		return 0, err
-	}
-
-	os.Setenv("GOPATH", gopath)
-	if testing.Verbose() {
-		fmt.Printf("+ export GOPATH=%s\n", gopath)
-	}
-	myContext.GOPATH = gopath
+	gorootInstallDir = runtimeP.PkgTargetRoot + "_dynlink"
 
 	// All tests depend on runtime being built into a shared library. Because
 	// that takes a few seconds, do it here and have all tests use the version
 	// built here.
-	suffix = strings.Split(filepath.Base(gorootInstallDir), "_")[2]
 	goCmd(nil, append([]string{"install", "-buildmode=shared"}, minpkgs...)...)
 
-	myContext.InstallSuffix = suffix + "_dynlink"
+	myContext.InstallSuffix = "_dynlink"
 	depP, err := myContext.Import("./depBase", ".", build.ImportComment)
 	if err != nil {
 		return 0, fmt.Errorf("import failed: %v", err)
@@ -171,6 +164,75 @@
 	os.Exit(exitCode)
 }
 
+// cloneTestdataModule clones the packages from src/testshared into gopath.
+// It returns the directory within gopath at which the module root is located.
+func cloneTestdataModule(gopath string) (string, error) {
+	modRoot := filepath.Join(gopath, "src", "testshared")
+	if err := overlayDir(modRoot, "testdata"); err != nil {
+		return "", err
+	}
+	if err := ioutil.WriteFile(filepath.Join(modRoot, "go.mod"), []byte("module testshared\n"), 0644); err != nil {
+		return "", err
+	}
+	return modRoot, nil
+}
+
+// cloneGOROOTDeps copies (or symlinks) the portions of GOROOT/src and
+// GOROOT/pkg relevant to this test into the given directory.
+// It must be run from within the testdata module.
+func cloneGOROOTDeps(goroot string) error {
+	oldGOROOT := strings.TrimSpace(goCmd(nil, "env", "GOROOT"))
+	if oldGOROOT == "" {
+		return fmt.Errorf("go env GOROOT returned an empty string")
+	}
+
+	// Before we clone GOROOT, figure out which packages we need to copy over.
+	listArgs := []string{
+		"list",
+		"-deps",
+		"-f", "{{if and .Standard (not .ForTest)}}{{.ImportPath}}{{end}}",
+	}
+	stdDeps := goCmd(nil, append(listArgs, minpkgs...)...)
+	testdataDeps := goCmd(nil, append(listArgs, "-test", "./...")...)
+
+	pkgs := append(strings.Split(strings.TrimSpace(stdDeps), "\n"),
+		strings.Split(strings.TrimSpace(testdataDeps), "\n")...)
+	sort.Strings(pkgs)
+	var pkgRoots []string
+	for _, pkg := range pkgs {
+		parentFound := false
+		for _, prev := range pkgRoots {
+			if strings.HasPrefix(pkg, prev) {
+				// We will copy in the source for pkg when we copy in prev.
+				parentFound = true
+				break
+			}
+		}
+		if !parentFound {
+			pkgRoots = append(pkgRoots, pkg)
+		}
+	}
+
+	gorootDirs := []string{
+		"pkg/tool",
+		"pkg/include",
+	}
+	for _, pkg := range pkgRoots {
+		gorootDirs = append(gorootDirs, filepath.Join("src", pkg))
+	}
+
+	for _, dir := range gorootDirs {
+		if testing.Verbose() {
+			fmt.Fprintf(os.Stderr, "+ cp -r %s %s\n", filepath.Join(goroot, dir), filepath.Join(oldGOROOT, dir))
+		}
+		if err := overlayDir(filepath.Join(goroot, dir), filepath.Join(oldGOROOT, dir)); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
 // The shared library was built at the expected location.
 func TestSOBuilt(t *testing.T) {
 	_, err := os.Stat(filepath.Join(gorootInstallDir, soname))
@@ -219,6 +281,7 @@
 }
 
 // The shared library does not contain symbols called ".dup"
+// (See golang.org/issue/14841.)
 func TestNoDupSymbols(t *testing.T) {
 	sopath := filepath.Join(gorootInstallDir, soname)
 	f, err := elf.Open(sopath)
@@ -695,7 +758,7 @@
 	}
 	reset := func(path string) {
 		if err := filepath.Walk(path, chtime); err != nil {
-			log.Fatalf("resetFileStamps failed: %v", err)
+			log.Panicf("resetFileStamps failed: %v", err)
 		}
 
 	}
@@ -708,6 +771,7 @@
 // touch changes path and returns a function that changes it back.
 // It also sets the time of the file, so that we can see if it is rewritten.
 func touch(t *testing.T, path string) (cleanup func()) {
+	t.Helper()
 	data, err := ioutil.ReadFile(path)
 	if err != nil {
 		t.Fatal(err)
@@ -736,14 +800,32 @@
 		// assume it's a text file
 		data = append(data, '\n')
 	}
-	if err := ioutil.WriteFile(path, data, 0666); err != nil {
+
+	// If the file is still a symlink from an overlay, delete it so that we will
+	// replace it with a regular file instead of overwriting the symlinked one.
+	fi, err := os.Lstat(path)
+	if err == nil && !fi.Mode().IsRegular() {
+		fi, err = os.Stat(path)
+		if err := os.Remove(path); err != nil {
+			t.Fatal(err)
+		}
+	}
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// If we're replacing a symlink to a read-only file, make the new file
+	// user-writable.
+	perm := fi.Mode().Perm() | 0200
+
+	if err := ioutil.WriteFile(path, data, perm); err != nil {
 		t.Fatal(err)
 	}
 	if err := os.Chtimes(path, nearlyNew, nearlyNew); err != nil {
 		t.Fatal(err)
 	}
 	return func() {
-		if err := ioutil.WriteFile(path, old, 0666); err != nil {
+		if err := ioutil.WriteFile(path, old, perm); err != nil {
 			t.Fatal(err)
 		}
 	}
diff --git a/libgo/misc/cgo/testsigfwd/main.go b/libgo/misc/cgo/testsigfwd/main.go
index 61bd0da..6d97050 100644
--- a/libgo/misc/cgo/testsigfwd/main.go
+++ b/libgo/misc/cgo/testsigfwd/main.go
@@ -25,6 +25,7 @@
 
 static void segvhandler(int signum) {
 	if (signum == SIGSEGV) {
+		fprintf(stdout, "ok\ttestsigfwd\n");
 		exit(0);  // success
 	}
 }
diff --git a/libgo/misc/cgo/testso/overlaydir_test.go b/libgo/misc/cgo/testso/overlaydir_test.go
index 10c874d..09a1d51 100644
--- a/libgo/misc/cgo/testso/overlaydir_test.go
+++ b/libgo/misc/cgo/testso/overlaydir_test.go
@@ -21,12 +21,9 @@
 		return err
 	}
 
-	symBase, err := filepath.Rel(srcRoot, dstRoot)
+	srcRoot, err := filepath.Abs(srcRoot)
 	if err != nil {
-		symBase, err = filepath.Abs(srcRoot)
-		if err != nil {
-			return err
-		}
+		return err
 	}
 
 	return filepath.Walk(srcRoot, func(srcPath string, info os.FileInfo, err error) error {
@@ -52,11 +49,11 @@
 		// Always copy directories (don't symlink them).
 		// If we add a file in the overlay, we don't want to add it in the original.
 		if info.IsDir() {
-			return os.Mkdir(dstPath, perm)
+			return os.MkdirAll(dstPath, perm|0200)
 		}
 
 		// If the OS supports symlinks, use them instead of copying bytes.
-		if err := os.Symlink(filepath.Join(symBase, suffix), dstPath); err == nil {
+		if err := os.Symlink(srcPath, dstPath); err == nil {
 			return nil
 		}
 
diff --git a/libgo/misc/cgo/testsovar/overlaydir_test.go b/libgo/misc/cgo/testsovar/overlaydir_test.go
index 10c874d..09a1d51 100644
--- a/libgo/misc/cgo/testsovar/overlaydir_test.go
+++ b/libgo/misc/cgo/testsovar/overlaydir_test.go
@@ -21,12 +21,9 @@
 		return err
 	}
 
-	symBase, err := filepath.Rel(srcRoot, dstRoot)
+	srcRoot, err := filepath.Abs(srcRoot)
 	if err != nil {
-		symBase, err = filepath.Abs(srcRoot)
-		if err != nil {
-			return err
-		}
+		return err
 	}
 
 	return filepath.Walk(srcRoot, func(srcPath string, info os.FileInfo, err error) error {
@@ -52,11 +49,11 @@
 		// Always copy directories (don't symlink them).
 		// If we add a file in the overlay, we don't want to add it in the original.
 		if info.IsDir() {
-			return os.Mkdir(dstPath, perm)
+			return os.MkdirAll(dstPath, perm|0200)
 		}
 
 		// If the OS supports symlinks, use them instead of copying bytes.
-		if err := os.Symlink(filepath.Join(symBase, suffix), dstPath); err == nil {
+		if err := os.Symlink(srcPath, dstPath); err == nil {
 			return nil
 		}
 
diff --git a/libgo/runtime/go-caller.c b/libgo/runtime/go-caller.c
index 5e31f91..a187876 100644
--- a/libgo/runtime/go-caller.c
+++ b/libgo/runtime/go-caller.c
@@ -27,6 +27,7 @@
   intgo line;
   intgo index;
   intgo frames;
+  bool more;
 };
 
 /* Collect file/line information for a PC value.  If this is called
@@ -40,7 +41,19 @@
 {
   struct caller *c = (struct caller *) data;
 
-  c->frames++;
+  /* We want to make sure we return at least one frame.  If we already
+     have at least one frame, see if we should skip this one.  */
+  if (c->frames > 0
+      && function != NULL
+      && runtime_skipInCallback (function, NULL))
+    return 0;
+
+  /* If we already have a frame, don't increment frames if we should
+     skip that one.  */
+  if (c->frames == 0
+      || c->fn.len == 0
+      || !runtime_skipInCallback ((const char *) c->fn.str, NULL))
+    c->frames++;
 
   /* The libbacktrace library says that these strings might disappear,
      but with the current implementation they won't.  We can't easily
@@ -51,7 +64,16 @@
   c->line = lineno;
 
   if (c->index == 0)
-    return 1;
+    {
+      /* If there are more frames after the indexed one, and we should
+	 skip this one, then skip it.  */
+      if (c->more
+	  && c->fn.len > 0
+	  && runtime_skipInCallback((const char *) c->fn.str, NULL))
+	return 0;
+
+      return 1;
+    }
 
   if (c->index > 0)
     --c->index;
@@ -129,18 +151,21 @@
   return back_state;
 }
 
-/* Return function/file/line/nframes information for PC.  The index parameter
-   is the entry on the stack of inlined functions; -1 means the last
-   one, with *nframes set to the count of inlined frames for this PC.  */
+/* Return function/file/line/nframes information for PC.  The index
+   parameter is the entry on the stack of inlined functions; -1 means
+   the last one, with *nframes set to the count of inlined frames for
+   this PC.  If index is not -1, more is whether there are more frames
+   after this one.  */
 
 static _Bool
-__go_file_line (uintptr pc, int index, String *fn, String *file, intgo *line, intgo *nframes)
+__go_file_line (uintptr pc, int index, bool more, String *fn, String *file, intgo *line, intgo *nframes)
 {
   struct caller c;
   struct backtrace_state *state;
 
   runtime_memclr (&c, sizeof c);
   c.index = index;
+  c.more = more;
   c.frames = 0;
   runtime_xadd (&__go_runtime_in_callers, 1);
   state = __go_get_backtrace_state ();
@@ -223,11 +248,11 @@
 /* Look up the function name, file name, and line number for a PC.  */
 
 struct funcfileline_return
-runtime_funcfileline (uintptr targetpc, int32 index)
+runtime_funcfileline (uintptr targetpc, int32 index, bool more)
 {
   struct funcfileline_return ret;
 
-  if (!__go_file_line (targetpc, index, &ret.retfn, &ret.retfile,
+  if (!__go_file_line (targetpc, index, more, &ret.retfn, &ret.retfile,
 		       &ret.retline, &ret.retframes))
     runtime_memclr (&ret, sizeof ret);
   return ret;
diff --git a/libgo/runtime/go-callers.c b/libgo/runtime/go-callers.c
index e7d53a3..33956ca 100644
--- a/libgo/runtime/go-callers.c
+++ b/libgo/runtime/go-callers.c
@@ -27,8 +27,59 @@
   int index;
   int max;
   int keep_thunks;
+  int saw_sigtramp;
 };
 
+/* Whether to skip a particular function name in the traceback.  This
+   is mostly to keep the output similar to the gc output for
+   runtime.Caller(N).
+
+   See also similar code in runtime/mprof.go that strips out such
+   functions for block/mutex/memory profiles.  */
+
+bool
+runtime_skipInCallback(const char *function, struct callers_data *arg)
+{
+  const char *p;
+
+  /* Skip thunks and recover functions.  There is no equivalent to
+     these functions in the gc toolchain.  */
+
+  p = function + __builtin_strlen (function);
+  while (p > function && p[-1] >= '0' && p[-1] <= '9')
+    --p;
+  if (p - function > 7 && __builtin_strncmp (p - 7, "..thunk", 7) == 0)
+    return true;
+  if (p - function > 3 && __builtin_strcmp (p - 3, "..r") == 0)
+    return true;
+  if (p - function > 6 && __builtin_strncmp (p - 6, "..stub", 6) == 0)
+    return true;
+
+  /* Skip runtime.deferreturn and runtime.sighandler as the gc
+     compiler has no corresponding function.  */
+  if (p - function == sizeof ("runtime.deferreturn") - 1
+      && __builtin_strcmp (function, "runtime.deferreturn") == 0)
+    return true;
+  if (p - function == sizeof ("runtime.sighandler") - 1
+      && __builtin_strcmp (function, "runtime.sighandler") == 0)
+    return true;
+
+  /* Skip the signal handler functions that remain on the stack for us
+     but not for gc.  */
+  if ((p - function == sizeof ("runtime.sigtramp") - 1
+       && __builtin_strcmp (function, "runtime.sigtramp") == 0)
+      || (p - function == sizeof ("runtime.sigtrampgo") - 1
+	  && __builtin_strcmp (function, "runtime.sigtrampgo") == 0))
+    {
+      /* Also try to skip the signal handler function.  */
+      if (arg != NULL)
+	arg->saw_sigtramp = 1;
+      return true;
+    }
+
+  return false;
+}
+
 /* Callback function for backtrace_full.  Just collect the locations.
    Return zero to continue, non-zero to stop.  */
 
@@ -39,6 +90,15 @@
   struct callers_data *arg = (struct callers_data *) data;
   Location *loc;
 
+  /* Skip an unnamed function above sigtramp.  It is likely the signal
+     handler function.  */
+  if (arg->saw_sigtramp)
+    {
+      arg->saw_sigtramp = 0;
+      if (function == NULL)
+	return 0;
+    }
+
   /* Skip split stack functions.  */
   if (function != NULL)
     {
@@ -61,25 +121,10 @@
 	return 0;
     }
 
-  /* Skip thunks and recover functions.  There is no equivalent to
-     these functions in the gc toolchain, so returning them here means
-     significantly different results for runtime.Caller(N). See also
-     similar code in runtime/mprof.go that strips out such functions
-     for block/mutex/memory profiles.  */
-  if (function != NULL && !arg->keep_thunks)
-    {
-      const char *p;
-
-      p = function + __builtin_strlen (function);
-      while (p > function && p[-1] >= '0' && p[-1] <= '9')
-	--p;
-      if (p - function > 7 && __builtin_strncmp (p - 7, "..thunk", 7) == 0)
-	return 0;
-      if (p - function > 3 && __builtin_strcmp (p - 3, "..r") == 0)
-	return 0;
-      if (p - function > 6 && __builtin_strncmp (p - 6, "..stub", 6) == 0)
-	return 0;
-    }
+  if (function != NULL
+      && !arg->keep_thunks
+      && runtime_skipInCallback (function, arg))
+    return 0;
 
   if (arg->skip > 0)
     {
@@ -204,6 +249,7 @@
   data.index = 0;
   data.max = m;
   data.keep_thunks = keep_thunks;
+  data.saw_sigtramp = 0;
   runtime_xadd (&__go_runtime_in_callers, 1);
   state = __go_get_backtrace_state ();
   backtrace_full (state, 0, callback, error_callback, &data);
@@ -248,6 +294,9 @@
   int ret;
   int i;
 
+  if (pc.__count == 0)
+    return 0;
+
   /* Note that calling mallocgc here assumes that we are not going to
      store any allocated Go pointers in the slice.  */
   locbuf = (Location *) runtime_mallocgc (pc.__count * sizeof (Location),
diff --git a/libgo/runtime/go-nanotime.c b/libgo/runtime/go-nanotime.c
index d221847..c7adfff 100644
--- a/libgo/runtime/go-nanotime.c
+++ b/libgo/runtime/go-nanotime.c
@@ -8,11 +8,11 @@
 
 #include "runtime.h"
 
-int64 runtime_nanotime (void)
+int64 runtime_nanotime1 (void)
   __attribute__ ((no_split_stack));
 
 int64
-runtime_nanotime (void)
+runtime_nanotime1 (void)
 {
   struct timespec ts;
 
diff --git a/libgo/runtime/go-now.c b/libgo/runtime/go-now.c
index a45890b..1c02e52 100644
--- a/libgo/runtime/go-now.c
+++ b/libgo/runtime/go-now.c
@@ -8,7 +8,7 @@
 
 #include "runtime.h"
 
-// Return current time.  This is the implementation of time.walltime().
+// Return current time.  This is the implementation of time.walltime1().
 
 struct walltime_ret
 {
@@ -16,7 +16,7 @@
   int32_t nsec;
 };
 
-struct walltime_ret now(void) __asm__ (GOSYM_PREFIX "runtime.walltime")
+struct walltime_ret now(void) __asm__ (GOSYM_PREFIX "runtime.walltime1")
   __attribute__ ((no_split_stack));
 
 struct walltime_ret
diff --git a/libgo/runtime/runtime.h b/libgo/runtime/runtime.h
index 89134c1..f46eaea 100644
--- a/libgo/runtime/runtime.h
+++ b/libgo/runtime/runtime.h
@@ -283,8 +283,11 @@
   __asm__ (GOSYM_PREFIX "runtime.entersyscallblock");
 G*	__go_go(uintptr, void*);
 int32	runtime_callers(int32, Location*, int32, bool keep_callers);
-int64	runtime_nanotime(void)	// monotonic time
-  __asm__(GOSYM_PREFIX "runtime.nanotime");
+struct callers_data;
+bool	runtime_skipInCallback(const char *, struct callers_data *)
+  __asm__ (GOSYM_PREFIX "runtime.skipInCallback");
+int64	runtime_nanotime1(void)	// monotonic time
+  __asm__(GOSYM_PREFIX "runtime.nanotime1");
 void	runtime_dopanic(int32) __attribute__ ((noreturn));
 void	runtime_startpanic(void)
   __asm__ (GOSYM_PREFIX "runtime.startpanic");
@@ -464,7 +467,7 @@
 };
 
 struct funcfileline_return
-runtime_funcfileline (uintptr targetpc, int32 index)
+runtime_funcfileline (uintptr targetpc, int32 index, bool more)
   __asm__ (GOSYM_PREFIX "runtime.funcfileline");
 
 /*
diff --git a/libgo/runtime/runtime_c.c b/libgo/runtime/runtime_c.c
index 7531431..e7951a0 100644
--- a/libgo/runtime/runtime_c.c
+++ b/libgo/runtime/runtime_c.c
@@ -134,16 +134,22 @@
 int32
 go_read(int32 fd, void *p, int32 n)
 {
-  return runtime_read(fd, p, n);
+  ssize_t r = runtime_read(fd, p, n);
+  if (r < 0)
+    r = - errno;
+  return (int32)r;
 }
 
-int32 go_write(uintptr, void *, int32)
-  __asm__ (GOSYM_PREFIX "runtime.write");
+int32 go_write1(uintptr, void *, int32)
+  __asm__ (GOSYM_PREFIX "runtime.write1");
 
 int32
-go_write(uintptr fd, void *p, int32 n)
+go_write1(uintptr fd, void *p, int32 n)
 {
-  return runtime_write(fd, p, n);
+  ssize_t r = runtime_write(fd, p, n);
+  if (r < 0)
+    r = - errno;
+  return (int32)r;
 }
 
 int32 go_closefd(int32)
diff --git a/libgo/testsuite/gotest b/libgo/testsuite/gotest
index 6929de3..de4a392 100755
--- a/libgo/testsuite/gotest
+++ b/libgo/testsuite/gotest
@@ -305,7 +305,7 @@
 	    "") ;;
 	    $goarch) ;;
 	    $goos) ;;
-	    aix | android | darwin | dragonfly | freebsd | hurd | js | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
+	    aix | android | darwin | dragonfly | freebsd | hurd | illumos | js | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
 		tag1=nonmatchingtag
 		;;
 	    386 | amd64 | amd64p32 | arm | armbe | arm64 | arm64be | alpha | ia64 | m68k | mips | mipsle | mips64 | mips64le | mips64p32 | mips64p32le·| nios2 | ppc | ppc64 | ppc64le | riscv64 | s390 | s390x | sh | shbe | sparc | sparc64 | wasm)
@@ -317,7 +317,7 @@
 	    "") ;;
 	    $goarch) ;;
 	    $goos) ;;
-	    aix | android | darwin | dragonfly | freebsd | hurd | js | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
+	    aix | android | darwin | dragonfly | freebsd | hurd | illumos | js | linux | nacl | netbsd | openbsd | plan9 | solaris | windows)
 		tag2=nonmatchingtag
 		;;
 	    386 | amd64 | amd64p32 | arm | armbe | arm64 | arm64be | alpha | ia64 | m68k | mips | mipsle | mips64 | mips64le | mips64p32 | mips64p32le·| nios2 | ppc | ppc64 | ppc64le | riscv64 | s390 | s390x | sh | shbe | sparc | sparc64 | wasm)
@@ -624,7 +624,9 @@
 		echo 'import _ "./_xtest_"'
 	    fi
 	fi
-	echo 'import "testing"'
+	if test "$package" != "testing"; then
+		echo 'import "testing"'
+	fi
 	echo 'import "testing/internal/testdeps"'
 	if ! test -n "$testmain"; then
 		echo 'import __os__ "os"'