cmd/new5l etc: convert from C to Go
Using rsc.io/c2go rev fc8cbfa's run.ld script.
Change-Id: I4d4d14fce96f8ce7a934bf8b9701b84fa9cf772d
Reviewed-on: https://go-review.googlesource.com/6335
Reviewed-by: Rob Pike <r@golang.org>
diff --git a/src/cmd/internal/ld/link.go b/src/cmd/internal/ld/link.go
new file mode 100644
index 0000000..69702fb
--- /dev/null
+++ b/src/cmd/internal/ld/link.go
@@ -0,0 +1,299 @@
+// Derived from Inferno utils/6l/l.h and related files.
+// http://code.google.com/p/inferno-os/source/browse/utils/6l/l.h
+//
+// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
+// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+// Portions Copyright © 1997-1999 Vita Nuova Limited
+// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+// Portions Copyright © 2004,2006 Bruce Ellis
+// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+// Portions Copyright © 2009 The Go Authors. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package ld
+
+import "encoding/binary"
+
+type LSym struct {
+ Name string
+ Extname string
+ Type int16
+ Version int16
+ Dupok uint8
+ Cfunc uint8
+ External uint8
+ Nosplit uint8
+ Reachable bool
+ Cgoexport uint8
+ Special uint8
+ Stkcheck uint8
+ Hide uint8
+ Leaf uint8
+ Localentry uint8
+ Onlist uint8
+ Dynid int32
+ Sig int32
+ Plt int32
+ Got int32
+ Align int32
+ Elfsym int32
+ Args int32
+ Locals int32
+ Value int64
+ Size int64
+ Hash *LSym
+ Allsym *LSym
+ Next *LSym
+ Sub *LSym
+ Outer *LSym
+ Gotype *LSym
+ Reachparent *LSym
+ Queue *LSym
+ File string
+ Dynimplib string
+ Dynimpvers string
+ Sect interface{}
+ Autom *Auto
+ Pcln *Pcln
+ P []byte
+ R []Reloc
+}
+
+type Reloc struct {
+ Off int32
+ Siz uint8
+ Done uint8
+ Type int32
+ Variant int32
+ Add int64
+ Xadd int64
+ Sym *LSym
+ Xsym *LSym
+}
+
+type Auto struct {
+ Asym *LSym
+ Link *Auto
+ Aoffset int32
+ Name int16
+ Gotype *LSym
+}
+
+type Link struct {
+ Thechar int32
+ Thestring string
+ Goarm int32
+ Headtype int
+ Arch *LinkArch
+ Debugasm int32
+ Debugvlog int32
+ Bso *Biobuf
+ Windows int32
+ Goroot string
+ Hash map[symVer]*LSym
+ Allsym *LSym
+ Nsymbol int32
+ Tlsg *LSym
+ Libdir []string
+ Library []Library
+ Tlsoffset int
+ Diag func(string, ...interface{})
+ Cursym *LSym
+ Version int
+ Textp *LSym
+ Etextp *LSym
+ Nhistfile int32
+ Filesyms *LSym
+}
+
+type LinkArch struct {
+ ByteOrder binary.ByteOrder
+ Name string
+ Thechar int
+ Endian int32
+ Minlc int
+ Ptrsize int
+ Regsize int
+}
+
+type Library struct {
+ Objref string
+ Srcref string
+ File string
+ Pkg string
+}
+
+type Pcln struct {
+ Pcsp Pcdata
+ Pcfile Pcdata
+ Pcline Pcdata
+ Pcdata []Pcdata
+ Npcdata int
+ Funcdata []*LSym
+ Funcdataoff []int64
+ Nfuncdata int
+ File []*LSym
+ Nfile int
+ Mfile int
+ Lastfile *LSym
+ Lastindex int
+}
+
+type Pcdata struct {
+ P []byte
+}
+
+type Pciter struct {
+ d Pcdata
+ p []byte
+ pc uint32
+ nextpc uint32
+ pcscale uint32
+ value int32
+ start int
+ done int
+}
+
+// LSym.type
+const (
+ Sxxx = iota
+ STEXT
+ SELFRXSECT
+ STYPE
+ SSTRING
+ SGOSTRING
+ SGOFUNC
+ SRODATA
+ SFUNCTAB
+ STYPELINK
+ SSYMTAB
+ SPCLNTAB
+ SELFROSECT
+ SMACHOPLT
+ SELFSECT
+ SMACHO
+ SMACHOGOT
+ SWINDOWS
+ SELFGOT
+ SNOPTRDATA
+ SINITARR
+ SDATA
+ SBSS
+ SNOPTRBSS
+ STLSBSS
+ SXREF
+ SMACHOSYMSTR
+ SMACHOSYMTAB
+ SMACHOINDIRECTPLT
+ SMACHOINDIRECTGOT
+ SFILE
+ SFILEPATH
+ SCONST
+ SDYNIMPORT
+ SHOSTOBJ
+ SSUB = 1 << 8
+ SMASK = SSUB - 1
+ SHIDDEN = 1 << 9
+)
+
+// Reloc.type
+const (
+ R_ADDR = 1 + iota
+ R_ADDRPOWER
+ R_SIZE
+ R_CALL
+ R_CALLARM
+ R_CALLIND
+ R_CALLPOWER
+ R_CONST
+ R_PCREL
+ R_TLS
+ R_TLS_LE
+ R_TLS_IE
+ R_GOTOFF
+ R_PLT0
+ R_PLT1
+ R_PLT2
+ R_USEFIELD
+ R_POWER_TOC
+)
+
+// Reloc.variant
+const (
+ RV_NONE = iota
+ RV_POWER_LO
+ RV_POWER_HI
+ RV_POWER_HA
+ RV_POWER_DS
+ RV_CHECK_OVERFLOW = 1 << 8
+ RV_TYPE_MASK = RV_CHECK_OVERFLOW - 1
+)
+
+// Auto.name
+const (
+ A_AUTO = 1 + iota
+ A_PARAM
+)
+
+const (
+ LINKHASH = 100003
+)
+
+// Pcdata iterator.
+// for(pciterinit(ctxt, &it, &pcd); !it.done; pciternext(&it)) { it.value holds in [it.pc, it.nextpc) }
+
+// symbol version, incremented each time a file is loaded.
+// version==1 is reserved for savehist.
+const (
+ HistVersion = 1
+)
+
+// Link holds the context for writing object code from a compiler
+// to be linker input or for reading that input into the linker.
+
+const (
+ LittleEndian = 0x04030201
+ BigEndian = 0x01020304
+)
+
+// LinkArch is the definition of a single architecture.
+
+/* executable header types */
+const (
+ Hunknown = 0 + iota
+ Hdarwin
+ Hdragonfly
+ Helf
+ Hfreebsd
+ Hlinux
+ Hnacl
+ Hnetbsd
+ Hopenbsd
+ Hplan9
+ Hsolaris
+ Hwindows
+)
+
+const (
+ LinkAuto = 0 + iota
+ LinkInternal
+ LinkExternal
+)
