| // 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 archive |
| |
| import ( |
| "bytes" |
| "debug/elf" |
| "debug/macho" |
| "debug/pe" |
| "fmt" |
| "internal/testenv" |
| "internal/xcoff" |
| "io" |
| "os" |
| "path/filepath" |
| "runtime" |
| "sync" |
| "testing" |
| "unicode/utf8" |
| ) |
| |
| var buildDir string |
| |
| func TestMain(m *testing.M) { |
| if !testenv.HasGoBuild() { |
| return |
| } |
| |
| exit := m.Run() |
| |
| if buildDir != "" { |
| os.RemoveAll(buildDir) |
| } |
| os.Exit(exit) |
| } |
| |
| func copyDir(dst, src string) error { |
| err := os.MkdirAll(dst, 0777) |
| if err != nil { |
| return err |
| } |
| entries, err := os.ReadDir(src) |
| if err != nil { |
| return err |
| } |
| for _, entry := range entries { |
| err = copyFile(filepath.Join(dst, entry.Name()), filepath.Join(src, entry.Name())) |
| if err != nil { |
| return err |
| } |
| } |
| return nil |
| } |
| |
| func copyFile(dst, src string) (err error) { |
| var s, d *os.File |
| s, err = os.Open(src) |
| if err != nil { |
| return err |
| } |
| defer s.Close() |
| d, err = os.Create(dst) |
| if err != nil { |
| return err |
| } |
| defer func() { |
| e := d.Close() |
| if err == nil { |
| err = e |
| } |
| }() |
| _, err = io.Copy(d, s) |
| if err != nil { |
| return err |
| } |
| return nil |
| } |
| |
| var ( |
| buildOnce sync.Once |
| builtGoobjs goobjPaths |
| buildErr error |
| ) |
| |
| type goobjPaths struct { |
| go1obj string |
| go2obj string |
| goarchive string |
| cgoarchive string |
| } |
| |
| func buildGoobj(t *testing.T) goobjPaths { |
| buildOnce.Do(func() { |
| buildErr = func() (err error) { |
| buildDir, err = os.MkdirTemp("", "TestGoobj") |
| if err != nil { |
| return err |
| } |
| |
| go1obj := filepath.Join(buildDir, "go1.o") |
| go2obj := filepath.Join(buildDir, "go2.o") |
| goarchive := filepath.Join(buildDir, "go.a") |
| cgoarchive := "" |
| |
| gotool, err := testenv.GoTool() |
| if err != nil { |
| return err |
| } |
| |
| go1src := filepath.Join("testdata", "go1.go") |
| go2src := filepath.Join("testdata", "go2.go") |
| |
| importcfgfile := filepath.Join(buildDir, "importcfg") |
| testenv.WriteImportcfg(t, importcfgfile, nil, go1src, go2src) |
| |
| out, err := testenv.Command(t, gotool, "tool", "compile", "-importcfg="+importcfgfile, "-p=p", "-o", go1obj, go1src).CombinedOutput() |
| if err != nil { |
| return fmt.Errorf("go tool compile -o %s %s: %v\n%s", go1obj, go1src, err, out) |
| } |
| out, err = testenv.Command(t, gotool, "tool", "compile", "-importcfg="+importcfgfile, "-p=p", "-o", go2obj, go2src).CombinedOutput() |
| if err != nil { |
| return fmt.Errorf("go tool compile -o %s %s: %v\n%s", go2obj, go2src, err, out) |
| } |
| out, err = testenv.Command(t, gotool, "tool", "pack", "c", goarchive, go1obj, go2obj).CombinedOutput() |
| if err != nil { |
| return fmt.Errorf("go tool pack c %s %s %s: %v\n%s", goarchive, go1obj, go2obj, err, out) |
| } |
| |
| if testenv.HasCGO() { |
| cgoarchive = filepath.Join(buildDir, "mycgo.a") |
| gopath := filepath.Join(buildDir, "gopath") |
| err = copyDir(filepath.Join(gopath, "src", "mycgo"), filepath.Join("testdata", "mycgo")) |
| if err == nil { |
| err = os.WriteFile(filepath.Join(gopath, "src", "mycgo", "go.mod"), []byte("module mycgo\n"), 0666) |
| } |
| if err != nil { |
| return err |
| } |
| cmd := testenv.Command(t, gotool, "build", "-buildmode=archive", "-o", cgoarchive, "-gcflags=all="+os.Getenv("GO_GCFLAGS"), "mycgo") |
| cmd.Dir = filepath.Join(gopath, "src", "mycgo") |
| cmd.Env = append(os.Environ(), "GOPATH="+gopath) |
| out, err = cmd.CombinedOutput() |
| if err != nil { |
| return fmt.Errorf("go install mycgo: %v\n%s", err, out) |
| } |
| } |
| |
| builtGoobjs = goobjPaths{ |
| go1obj: go1obj, |
| go2obj: go2obj, |
| goarchive: goarchive, |
| cgoarchive: cgoarchive, |
| } |
| return nil |
| }() |
| }) |
| |
| if buildErr != nil { |
| t.Helper() |
| t.Fatal(buildErr) |
| } |
| return builtGoobjs |
| } |
| |
| func TestParseGoobj(t *testing.T) { |
| path := buildGoobj(t).go1obj |
| |
| f, err := os.Open(path) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer f.Close() |
| |
| a, err := Parse(f, false) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if len(a.Entries) != 2 { |
| t.Errorf("expect 2 entry, found %d", len(a.Entries)) |
| } |
| for _, e := range a.Entries { |
| if e.Type == EntryPkgDef { |
| continue |
| } |
| if e.Type != EntryGoObj { |
| t.Errorf("wrong type of object: want EntryGoObj, got %v", e.Type) |
| } |
| if !bytes.Contains(e.Obj.TextHeader, []byte(runtime.GOARCH)) { |
| t.Errorf("text header does not contain GOARCH %s: %q", runtime.GOARCH, e.Obj.TextHeader) |
| } |
| } |
| } |
| |
| func TestParseArchive(t *testing.T) { |
| path := buildGoobj(t).goarchive |
| |
| f, err := os.Open(path) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer f.Close() |
| |
| a, err := Parse(f, false) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if len(a.Entries) != 3 { |
| t.Errorf("expect 3 entry, found %d", len(a.Entries)) |
| } |
| var found1 bool |
| var found2 bool |
| for _, e := range a.Entries { |
| if e.Type == EntryPkgDef { |
| continue |
| } |
| if e.Type != EntryGoObj { |
| t.Errorf("wrong type of object: want EntryGoObj, got %v", e.Type) |
| } |
| if !bytes.Contains(e.Obj.TextHeader, []byte(runtime.GOARCH)) { |
| t.Errorf("text header does not contain GOARCH %s: %q", runtime.GOARCH, e.Obj.TextHeader) |
| } |
| if e.Name == "go1.o" { |
| found1 = true |
| } |
| if e.Name == "go2.o" { |
| found2 = true |
| } |
| } |
| if !found1 { |
| t.Errorf(`object "go1.o" not found`) |
| } |
| if !found2 { |
| t.Errorf(`object "go2.o" not found`) |
| } |
| } |
| |
| func TestParseCGOArchive(t *testing.T) { |
| testenv.MustHaveCGO(t) |
| |
| path := buildGoobj(t).cgoarchive |
| |
| f, err := os.Open(path) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer f.Close() |
| |
| a, err := Parse(f, false) |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| c1 := "c1" |
| c2 := "c2" |
| switch runtime.GOOS { |
| case "darwin", "ios": |
| c1 = "_" + c1 |
| c2 = "_" + c2 |
| case "windows": |
| if runtime.GOARCH == "386" { |
| c1 = "_" + c1 |
| c2 = "_" + c2 |
| } |
| case "aix": |
| c1 = "." + c1 |
| c2 = "." + c2 |
| } |
| |
| var foundgo, found1, found2 bool |
| |
| for _, e := range a.Entries { |
| switch e.Type { |
| default: |
| t.Errorf("unknown object type") |
| case EntryPkgDef: |
| continue |
| case EntryGoObj: |
| foundgo = true |
| if !bytes.Contains(e.Obj.TextHeader, []byte(runtime.GOARCH)) { |
| t.Errorf("text header does not contain GOARCH %s: %q", runtime.GOARCH, e.Obj.TextHeader) |
| } |
| continue |
| case EntryNativeObj: |
| } |
| |
| obj := io.NewSectionReader(f, e.Offset, e.Size) |
| switch runtime.GOOS { |
| case "darwin", "ios": |
| mf, err := macho.NewFile(obj) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if mf.Symtab == nil { |
| continue |
| } |
| for _, s := range mf.Symtab.Syms { |
| switch s.Name { |
| case c1: |
| found1 = true |
| case c2: |
| found2 = true |
| } |
| } |
| case "windows": |
| pf, err := pe.NewFile(obj) |
| if err != nil { |
| t.Fatal(err) |
| } |
| for _, s := range pf.Symbols { |
| switch s.Name { |
| case c1: |
| found1 = true |
| case c2: |
| found2 = true |
| } |
| } |
| case "aix": |
| xf, err := xcoff.NewFile(obj) |
| if err != nil { |
| t.Fatal(err) |
| } |
| for _, s := range xf.Symbols { |
| switch s.Name { |
| case c1: |
| found1 = true |
| case c2: |
| found2 = true |
| } |
| } |
| default: // ELF |
| ef, err := elf.NewFile(obj) |
| if err != nil { |
| t.Fatal(err) |
| } |
| syms, err := ef.Symbols() |
| if err != nil { |
| t.Fatal(err) |
| } |
| for _, s := range syms { |
| switch s.Name { |
| case c1: |
| found1 = true |
| case c2: |
| found2 = true |
| } |
| } |
| } |
| } |
| |
| if !foundgo { |
| t.Errorf(`go object not found`) |
| } |
| if !found1 { |
| t.Errorf(`symbol %q not found`, c1) |
| } |
| if !found2 { |
| t.Errorf(`symbol %q not found`, c2) |
| } |
| } |
| |
| func TestExactly16Bytes(t *testing.T) { |
| var tests = []string{ |
| "", |
| "a", |
| "日本語", |
| "1234567890123456", |
| "12345678901234567890", |
| "1234567890123本語4567890", |
| "12345678901234日本語567890", |
| "123456789012345日本語67890", |
| "1234567890123456日本語7890", |
| "1234567890123456日本語7日本語890", |
| } |
| for _, str := range tests { |
| got := exactly16Bytes(str) |
| if len(got) != 16 { |
| t.Errorf("exactly16Bytes(%q) is %q, length %d", str, got, len(got)) |
| } |
| // Make sure it is full runes. |
| for _, c := range got { |
| if c == utf8.RuneError { |
| t.Errorf("exactly16Bytes(%q) is %q, has partial rune", str, got) |
| } |
| } |
| } |
| } |
