cmd/compile, cmd/link: create from 5g, 5l, etc

Trivial merging of 5g, 6g, ... into go tool compile,
and similarlly 5l, 6l, ... into go tool link.
The files compile/main.go and link/main.go are new.
Everything else in those directories is a move followed by
change of imports and package name.

This CL breaks the build. Manual fixups are in the next CL.

See golang-dev thread titled "go tool compile, etc" for background.

Change-Id: Id35ff5a5859ad9037c61275d637b1bd51df6828b
Reviewed-on: https://go-review.googlesource.com/10287
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Rob Pike <r@golang.org>

3 files changed, 0 insertions, 877 deletions

diff --git a/src/cmd/8l/asm.go b/src/cmd/8l/asm.go
deleted file mode 100644
index a736d43686..0000000000
--- a/src/cmd/8l/asm.go
+++ /dev/null
@@ -1,643 +0,0 @@
-// Inferno utils/8l/asm.c
-// http://code.google.com/p/inferno-os/source/browse/utils/8l/asm.c
-//
-//	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 main
-
-import (
-	"cmd/internal/ld"
-	"cmd/internal/obj"
-	"fmt"
-	"log"
-)
-
-func gentext() {
-}
-
-func adddynrela(rela *ld.LSym, s *ld.LSym, r *ld.Reloc) {
-	log.Fatalf("adddynrela not implemented")
-}
-
-func adddynrel(s *ld.LSym, r *ld.Reloc) {
-	targ := r.Sym
-	ld.Ctxt.Cursym = s
-
-	switch r.Type {
-	default:
-		if r.Type >= 256 {
-			ld.Diag("unexpected relocation type %d", r.Type)
-			return
-		}
-
-		// Handle relocations found in ELF object files.
-	case 256 + ld.R_386_PC32:
-		if targ.Type == obj.SDYNIMPORT {
-			ld.Diag("unexpected R_386_PC32 relocation for dynamic symbol %s", targ.Name)
-		}
-		if targ.Type == 0 || targ.Type == obj.SXREF {
-			ld.Diag("unknown symbol %s in pcrel", targ.Name)
-		}
-		r.Type = obj.R_PCREL
-		r.Add += 4
-		return
-
-	case 256 + ld.R_386_PLT32:
-		r.Type = obj.R_PCREL
-		r.Add += 4
-		if targ.Type == obj.SDYNIMPORT {
-			addpltsym(ld.Ctxt, targ)
-			r.Sym = ld.Linklookup(ld.Ctxt, ".plt", 0)
-			r.Add += int64(targ.Plt)
-		}
-
-		return
-
-	case 256 + ld.R_386_GOT32:
-		if targ.Type != obj.SDYNIMPORT {
-			// have symbol
-			if r.Off >= 2 && s.P[r.Off-2] == 0x8b {
-				// turn MOVL of GOT entry into LEAL of symbol address, relative to GOT.
-				s.P[r.Off-2] = 0x8d
-
-				r.Type = obj.R_GOTOFF
-				return
-			}
-
-			if r.Off >= 2 && s.P[r.Off-2] == 0xff && s.P[r.Off-1] == 0xb3 {
-				// turn PUSHL of GOT entry into PUSHL of symbol itself.
-				// use unnecessary SS prefix to keep instruction same length.
-				s.P[r.Off-2] = 0x36
-
-				s.P[r.Off-1] = 0x68
-				r.Type = obj.R_ADDR
-				return
-			}
-
-			ld.Diag("unexpected GOT reloc for non-dynamic symbol %s", targ.Name)
-			return
-		}
-
-		addgotsym(ld.Ctxt, targ)
-		r.Type = obj.R_CONST // write r->add during relocsym
-		r.Sym = nil
-		r.Add += int64(targ.Got)
-		return
-
-	case 256 + ld.R_386_GOTOFF:
-		r.Type = obj.R_GOTOFF
-		return
-
-	case 256 + ld.R_386_GOTPC:
-		r.Type = obj.R_PCREL
-		r.Sym = ld.Linklookup(ld.Ctxt, ".got", 0)
-		r.Add += 4
-		return
-
-	case 256 + ld.R_386_32:
-		if targ.Type == obj.SDYNIMPORT {
-			ld.Diag("unexpected R_386_32 relocation for dynamic symbol %s", targ.Name)
-		}
-		r.Type = obj.R_ADDR
-		return
-
-	case 512 + ld.MACHO_GENERIC_RELOC_VANILLA*2 + 0:
-		r.Type = obj.R_ADDR
-		if targ.Type == obj.SDYNIMPORT {
-			ld.Diag("unexpected reloc for dynamic symbol %s", targ.Name)
-		}
-		return
-
-	case 512 + ld.MACHO_GENERIC_RELOC_VANILLA*2 + 1:
-		if targ.Type == obj.SDYNIMPORT {
-			addpltsym(ld.Ctxt, targ)
-			r.Sym = ld.Linklookup(ld.Ctxt, ".plt", 0)
-			r.Add = int64(targ.Plt)
-			r.Type = obj.R_PCREL
-			return
-		}
-
-		r.Type = obj.R_PCREL
-		return
-
-	case 512 + ld.MACHO_FAKE_GOTPCREL:
-		if targ.Type != obj.SDYNIMPORT {
-			// have symbol
-			// turn MOVL of GOT entry into LEAL of symbol itself
-			if r.Off < 2 || s.P[r.Off-2] != 0x8b {
-				ld.Diag("unexpected GOT reloc for non-dynamic symbol %s", targ.Name)
-				return
-			}
-
-			s.P[r.Off-2] = 0x8d
-			r.Type = obj.R_PCREL
-			return
-		}
-
-		addgotsym(ld.Ctxt, targ)
-		r.Sym = ld.Linklookup(ld.Ctxt, ".got", 0)
-		r.Add += int64(targ.Got)
-		r.Type = obj.R_PCREL
-		return
-	}
-
-	// Handle references to ELF symbols from our own object files.
-	if targ.Type != obj.SDYNIMPORT {
-		return
-	}
-
-	switch r.Type {
-	case obj.R_CALL,
-		obj.R_PCREL:
-		addpltsym(ld.Ctxt, targ)
-		r.Sym = ld.Linklookup(ld.Ctxt, ".plt", 0)
-		r.Add = int64(targ.Plt)
-		return
-
-	case obj.R_ADDR:
-		if s.Type != obj.SDATA {
-			break
-		}
-		if ld.Iself {
-			ld.Adddynsym(ld.Ctxt, targ)
-			rel := ld.Linklookup(ld.Ctxt, ".rel", 0)
-			ld.Addaddrplus(ld.Ctxt, rel, s, int64(r.Off))
-			ld.Adduint32(ld.Ctxt, rel, ld.ELF32_R_INFO(uint32(targ.Dynid), ld.R_386_32))
-			r.Type = obj.R_CONST // write r->add during relocsym
-			r.Sym = nil
-			return
-		}
-
-		if ld.HEADTYPE == obj.Hdarwin && s.Size == PtrSize && r.Off == 0 {
-			// Mach-O relocations are a royal pain to lay out.
-			// They use a compact stateful bytecode representation
-			// that is too much bother to deal with.
-			// Instead, interpret the C declaration
-			//	void *_Cvar_stderr = &stderr;
-			// as making _Cvar_stderr the name of a GOT entry
-			// for stderr.  This is separate from the usual GOT entry,
-			// just in case the C code assigns to the variable,
-			// and of course it only works for single pointers,
-			// but we only need to support cgo and that's all it needs.
-			ld.Adddynsym(ld.Ctxt, targ)
-
-			got := ld.Linklookup(ld.Ctxt, ".got", 0)
-			s.Type = got.Type | obj.SSUB
-			s.Outer = got
-			s.Sub = got.Sub
-			got.Sub = s
-			s.Value = got.Size
-			ld.Adduint32(ld.Ctxt, got, 0)
-			ld.Adduint32(ld.Ctxt, ld.Linklookup(ld.Ctxt, ".linkedit.got", 0), uint32(targ.Dynid))
-			r.Type = 256 // ignore during relocsym
-			return
-		}
-
-		if ld.HEADTYPE == obj.Hwindows && s.Size == PtrSize {
-			// nothing to do, the relocation will be laid out in pereloc1
-			return
-		}
-	}
-
-	ld.Ctxt.Cursym = s
-	ld.Diag("unsupported relocation for dynamic symbol %s (type=%d stype=%d)", targ.Name, r.Type, targ.Type)
-}
-
-func elfreloc1(r *ld.Reloc, sectoff int64) int {
-	ld.Thearch.Lput(uint32(sectoff))
-
-	elfsym := r.Xsym.Elfsym
-	switch r.Type {
-	default:
-		return -1
-
-	case obj.R_ADDR:
-		if r.Siz == 4 {
-			ld.Thearch.Lput(ld.R_386_32 | uint32(elfsym)<<8)
-		} else {
-			return -1
-		}
-
-	case obj.R_CALL,
-		obj.R_PCREL:
-		if r.Siz == 4 {
-			ld.Thearch.Lput(ld.R_386_PC32 | uint32(elfsym)<<8)
-		} else {
-			return -1
-		}
-
-	case obj.R_TLS_LE:
-		if r.Siz == 4 {
-			ld.Thearch.Lput(ld.R_386_TLS_LE | uint32(elfsym)<<8)
-		} else {
-			return -1
-		}
-	}
-
-	return 0
-}
-
-func machoreloc1(r *ld.Reloc, sectoff int64) int {
-	var v uint32
-
-	rs := r.Xsym
-
-	if rs.Type == obj.SHOSTOBJ {
-		if rs.Dynid < 0 {
-			ld.Diag("reloc %d to non-macho symbol %s type=%d", r.Type, rs.Name, rs.Type)
-			return -1
-		}
-
-		v = uint32(rs.Dynid)
-		v |= 1 << 27 // external relocation
-	} else {
-		v = uint32((rs.Sect.(*ld.Section)).Extnum)
-		if v == 0 {
-			ld.Diag("reloc %d to symbol %s in non-macho section %s type=%d", r.Type, rs.Name, (rs.Sect.(*ld.Section)).Name, rs.Type)
-			return -1
-		}
-	}
-
-	switch r.Type {
-	default:
-		return -1
-
-	case obj.R_ADDR:
-		v |= ld.MACHO_GENERIC_RELOC_VANILLA << 28
-
-	case obj.R_CALL,
-		obj.R_PCREL:
-		v |= 1 << 24 // pc-relative bit
-		v |= ld.MACHO_GENERIC_RELOC_VANILLA << 28
-	}
-
-	switch r.Siz {
-	default:
-		return -1
-
-	case 1:
-		v |= 0 << 25
-
-	case 2:
-		v |= 1 << 25
-
-	case 4:
-		v |= 2 << 25
-
-	case 8:
-		v |= 3 << 25
-	}
-
-	ld.Thearch.Lput(uint32(sectoff))
-	ld.Thearch.Lput(v)
-	return 0
-}
-
-func pereloc1(r *ld.Reloc, sectoff int64) bool {
-	var v uint32
-
-	rs := r.Xsym
-
-	if rs.Dynid < 0 {
-		ld.Diag("reloc %d to non-coff symbol %s type=%d", r.Type, rs.Name, rs.Type)
-		return false
-	}
-
-	ld.Thearch.Lput(uint32(sectoff))
-	ld.Thearch.Lput(uint32(rs.Dynid))
-
-	switch r.Type {
-	default:
-		return false
-
-	case obj.R_ADDR:
-		v = ld.IMAGE_REL_I386_DIR32
-
-	case obj.R_CALL,
-		obj.R_PCREL:
-		v = ld.IMAGE_REL_I386_REL32
-	}
-
-	ld.Thearch.Wput(uint16(v))
-
-	return true
-}
-
-func archreloc(r *ld.Reloc, s *ld.LSym, val *int64) int {
-	if ld.Linkmode == ld.LinkExternal {
-		return -1
-	}
-	switch r.Type {
-	case obj.R_CONST:
-		*val = r.Add
-		return 0
-
-	case obj.R_GOTOFF:
-		*val = ld.Symaddr(r.Sym) + r.Add - ld.Symaddr(ld.Linklookup(ld.Ctxt, ".got", 0))
-		return 0
-	}
-
-	return -1
-}
-
-func archrelocvariant(r *ld.Reloc, s *ld.LSym, t int64) int64 {
-	log.Fatalf("unexpected relocation variant")
-	return t
-}
-
-func elfsetupplt() {
-	plt := ld.Linklookup(ld.Ctxt, ".plt", 0)
-	got := ld.Linklookup(ld.Ctxt, ".got.plt", 0)
-	if plt.Size == 0 {
-		// pushl got+4
-		ld.Adduint8(ld.Ctxt, plt, 0xff)
-
-		ld.Adduint8(ld.Ctxt, plt, 0x35)
-		ld.Addaddrplus(ld.Ctxt, plt, got, 4)
-
-		// jmp *got+8
-		ld.Adduint8(ld.Ctxt, plt, 0xff)
-
-		ld.Adduint8(ld.Ctxt, plt, 0x25)
-		ld.Addaddrplus(ld.Ctxt, plt, got, 8)
-
-		// zero pad
-		ld.Adduint32(ld.Ctxt, plt, 0)
-
-		// assume got->size == 0 too
-		ld.Addaddrplus(ld.Ctxt, got, ld.Linklookup(ld.Ctxt, ".dynamic", 0), 0)
-
-		ld.Adduint32(ld.Ctxt, got, 0)
-		ld.Adduint32(ld.Ctxt, got, 0)
-	}
-}
-
-func addpltsym(ctxt *ld.Link, s *ld.LSym) {
-	if s.Plt >= 0 {
-		return
-	}
-
-	ld.Adddynsym(ctxt, s)
-
-	if ld.Iself {
-		plt := ld.Linklookup(ctxt, ".plt", 0)
-		got := ld.Linklookup(ctxt, ".got.plt", 0)
-		rel := ld.Linklookup(ctxt, ".rel.plt", 0)
-		if plt.Size == 0 {
-			elfsetupplt()
-		}
-
-		// jmpq *got+size
-		ld.Adduint8(ctxt, plt, 0xff)
-
-		ld.Adduint8(ctxt, plt, 0x25)
-		ld.Addaddrplus(ctxt, plt, got, got.Size)
-
-		// add to got: pointer to current pos in plt
-		ld.Addaddrplus(ctxt, got, plt, plt.Size)
-
-		// pushl $x
-		ld.Adduint8(ctxt, plt, 0x68)
-
-		ld.Adduint32(ctxt, plt, uint32(rel.Size))
-
-		// jmp .plt
-		ld.Adduint8(ctxt, plt, 0xe9)
-
-		ld.Adduint32(ctxt, plt, uint32(-(plt.Size + 4)))
-
-		// rel
-		ld.Addaddrplus(ctxt, rel, got, got.Size-4)
-
-		ld.Adduint32(ctxt, rel, ld.ELF32_R_INFO(uint32(s.Dynid), ld.R_386_JMP_SLOT))
-
-		s.Plt = int32(plt.Size - 16)
-	} else if ld.HEADTYPE == obj.Hdarwin {
-		// Same laziness as in 6l.
-
-		plt := ld.Linklookup(ctxt, ".plt", 0)
-
-		addgotsym(ctxt, s)
-
-		ld.Adduint32(ctxt, ld.Linklookup(ctxt, ".linkedit.plt", 0), uint32(s.Dynid))
-
-		// jmpq *got+size(IP)
-		s.Plt = int32(plt.Size)
-
-		ld.Adduint8(ctxt, plt, 0xff)
-		ld.Adduint8(ctxt, plt, 0x25)
-		ld.Addaddrplus(ctxt, plt, ld.Linklookup(ctxt, ".got", 0), int64(s.Got))
-	} else {
-		ld.Diag("addpltsym: unsupported binary format")
-	}
-}
-
-func addgotsym(ctxt *ld.Link, s *ld.LSym) {
-	if s.Got >= 0 {
-		return
-	}
-
-	ld.Adddynsym(ctxt, s)
-	got := ld.Linklookup(ctxt, ".got", 0)
-	s.Got = int32(got.Size)
-	ld.Adduint32(ctxt, got, 0)
-
-	if ld.Iself {
-		rel := ld.Linklookup(ctxt, ".rel", 0)
-		ld.Addaddrplus(ctxt, rel, got, int64(s.Got))
-		ld.Adduint32(ctxt, rel, ld.ELF32_R_INFO(uint32(s.Dynid), ld.R_386_GLOB_DAT))
-	} else if ld.HEADTYPE == obj.Hdarwin {
-		ld.Adduint32(ctxt, ld.Linklookup(ctxt, ".linkedit.got", 0), uint32(s.Dynid))
-	} else {
-		ld.Diag("addgotsym: unsupported binary format")
-	}
-}
-
-func asmb() {
-	if ld.Debug['v'] != 0 {
-		fmt.Fprintf(&ld.Bso, "%5.2f asmb\n", obj.Cputime())
-	}
-	ld.Bso.Flush()
-
-	if ld.Iself {
-		ld.Asmbelfsetup()
-	}
-
-	sect := ld.Segtext.Sect
-	ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
-	ld.Codeblk(int64(sect.Vaddr), int64(sect.Length))
-	for sect = sect.Next; sect != nil; sect = sect.Next {
-		ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
-		ld.Datblk(int64(sect.Vaddr), int64(sect.Length))
-	}
-
-	if ld.Segrodata.Filelen > 0 {
-		if ld.Debug['v'] != 0 {
-			fmt.Fprintf(&ld.Bso, "%5.2f rodatblk\n", obj.Cputime())
-		}
-		ld.Bso.Flush()
-
-		ld.Cseek(int64(ld.Segrodata.Fileoff))
-		ld.Datblk(int64(ld.Segrodata.Vaddr), int64(ld.Segrodata.Filelen))
-	}
-
-	if ld.Debug['v'] != 0 {
-		fmt.Fprintf(&ld.Bso, "%5.2f datblk\n", obj.Cputime())
-	}
-	ld.Bso.Flush()
-
-	ld.Cseek(int64(ld.Segdata.Fileoff))
-	ld.Datblk(int64(ld.Segdata.Vaddr), int64(ld.Segdata.Filelen))
-
-	machlink := uint32(0)
-	if ld.HEADTYPE == obj.Hdarwin {
-		if ld.Debug['v'] != 0 {
-			fmt.Fprintf(&ld.Bso, "%5.2f dwarf\n", obj.Cputime())
-		}
-
-		dwarfoff := uint32(ld.Rnd(int64(uint64(ld.HEADR)+ld.Segtext.Length), int64(ld.INITRND)) + ld.Rnd(int64(ld.Segdata.Filelen), int64(ld.INITRND)))
-		ld.Cseek(int64(dwarfoff))
-
-		ld.Segdwarf.Fileoff = uint64(ld.Cpos())
-		ld.Dwarfemitdebugsections()
-		ld.Segdwarf.Filelen = uint64(ld.Cpos()) - ld.Segdwarf.Fileoff
-
-		machlink = uint32(ld.Domacholink())
-	}
-
-	ld.Symsize = 0
-	ld.Spsize = 0
-	ld.Lcsize = 0
-	symo := uint32(0)
-	if ld.Debug['s'] == 0 {
-		// TODO: rationalize
-		if ld.Debug['v'] != 0 {
-			fmt.Fprintf(&ld.Bso, "%5.2f sym\n", obj.Cputime())
-		}
-		ld.Bso.Flush()
-		switch ld.HEADTYPE {
-		default:
-			if ld.Iself {
-				symo = uint32(ld.Segdata.Fileoff + ld.Segdata.Filelen)
-				symo = uint32(ld.Rnd(int64(symo), int64(ld.INITRND)))
-			}
-
-		case obj.Hplan9:
-			symo = uint32(ld.Segdata.Fileoff + ld.Segdata.Filelen)
-
-		case obj.Hdarwin:
-			symo = uint32(ld.Segdwarf.Fileoff + uint64(ld.Rnd(int64(ld.Segdwarf.Filelen), int64(ld.INITRND))) + uint64(machlink))
-
-		case obj.Hwindows:
-			symo = uint32(ld.Segdata.Fileoff + ld.Segdata.Filelen)
-			symo = uint32(ld.Rnd(int64(symo), ld.PEFILEALIGN))
-		}
-
-		ld.Cseek(int64(symo))
-		switch ld.HEADTYPE {
-		default:
-			if ld.Iself {
-				if ld.Debug['v'] != 0 {
-					fmt.Fprintf(&ld.Bso, "%5.2f elfsym\n", obj.Cputime())
-				}
-				ld.Asmelfsym()
-				ld.Cflush()
-				ld.Cwrite(ld.Elfstrdat)
-
-				if ld.Debug['v'] != 0 {
-					fmt.Fprintf(&ld.Bso, "%5.2f dwarf\n", obj.Cputime())
-				}
-				ld.Dwarfemitdebugsections()
-
-				if ld.Linkmode == ld.LinkExternal {
-					ld.Elfemitreloc()
-				}
-			}
-
-		case obj.Hplan9:
-			ld.Asmplan9sym()
-			ld.Cflush()
-
-			sym := ld.Linklookup(ld.Ctxt, "pclntab", 0)
-			if sym != nil {
-				ld.Lcsize = int32(len(sym.P))
-				for i := 0; int32(i) < ld.Lcsize; i++ {
-					ld.Cput(uint8(sym.P[i]))
-				}
-
-				ld.Cflush()
-			}
-
-		case obj.Hwindows:
-			if ld.Debug['v'] != 0 {
-				fmt.Fprintf(&ld.Bso, "%5.2f dwarf\n", obj.Cputime())
-			}
-			ld.Dwarfemitdebugsections()
-
-		case obj.Hdarwin:
-			if ld.Linkmode == ld.LinkExternal {
-				ld.Machoemitreloc()
-			}
-		}
-	}
-
-	if ld.Debug['v'] != 0 {
-		fmt.Fprintf(&ld.Bso, "%5.2f headr\n", obj.Cputime())
-	}
-	ld.Bso.Flush()
-	ld.Cseek(0)
-	switch ld.HEADTYPE {
-	default:
-	case obj.Hplan9: /* plan9 */
-		magic := int32(4*11*11 + 7)
-
-		ld.Lputb(uint32(magic))              /* magic */
-		ld.Lputb(uint32(ld.Segtext.Filelen)) /* sizes */
-		ld.Lputb(uint32(ld.Segdata.Filelen))
-		ld.Lputb(uint32(ld.Segdata.Length - ld.Segdata.Filelen))
-		ld.Lputb(uint32(ld.Symsize))      /* nsyms */
-		ld.Lputb(uint32(ld.Entryvalue())) /* va of entry */
-		ld.Lputb(uint32(ld.Spsize))       /* sp offsets */
-		ld.Lputb(uint32(ld.Lcsize))       /* line offsets */
-
-	case obj.Hdarwin:
-		ld.Asmbmacho()
-
-	case obj.Hlinux,
-		obj.Hfreebsd,
-		obj.Hnetbsd,
-		obj.Hopenbsd,
-		obj.Hnacl:
-		ld.Asmbelf(int64(symo))
-
-	case obj.Hwindows:
-		ld.Asmbpe()
-	}
-
-	ld.Cflush()
-}
diff --git a/src/cmd/8l/l.go b/src/cmd/8l/l.go
deleted file mode 100644
index 5cb9f8d8af..0000000000
--- a/src/cmd/8l/l.go
+++ /dev/null
@@ -1,47 +0,0 @@
-// Inferno utils/8l/l.h
-// http://code.google.com/p/inferno-os/source/browse/utils/8l/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 main
-
-const (
-	thechar   = '8'
-	PtrSize   = 4
-	IntSize   = 4
-	RegSize   = 4
-	MaxAlign  = 32 // max data alignment
-	FuncAlign = 16
-	MINLC     = 1
-)
-
-/* Used by ../internal/ld/dwarf.go */
-const (
-	DWARFREGSP = 4
-	DWARFREGLR = 8
-)
diff --git a/src/cmd/8l/obj.go b/src/cmd/8l/obj.go
deleted file mode 100644
index bea0d03cfe..0000000000
--- a/src/cmd/8l/obj.go
+++ /dev/null
@@ -1,187 +0,0 @@
-// Inferno utils/8l/obj.c
-// http://code.google.com/p/inferno-os/source/browse/utils/8l/obj.c
-//
-//	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 main
-
-import (
-	"cmd/internal/ld"
-	"cmd/internal/obj"
-	"fmt"
-	"log"
-)
-
-// Reading object files.
-
-func main() {
-	linkarchinit()
-	ld.Ldmain()
-}
-
-func linkarchinit() {
-	ld.Thestring = "386"
-	ld.Thelinkarch = &ld.Link386
-
-	ld.Thearch.Thechar = thechar
-	ld.Thearch.Ptrsize = ld.Thelinkarch.Ptrsize
-	ld.Thearch.Intsize = ld.Thelinkarch.Ptrsize
-	ld.Thearch.Regsize = ld.Thelinkarch.Regsize
-	ld.Thearch.Funcalign = FuncAlign
-	ld.Thearch.Maxalign = MaxAlign
-	ld.Thearch.Minlc = MINLC
-	ld.Thearch.Dwarfregsp = DWARFREGSP
-	ld.Thearch.Dwarfreglr = DWARFREGLR
-
-	ld.Thearch.Adddynrel = adddynrel
-	ld.Thearch.Archinit = archinit
-	ld.Thearch.Archreloc = archreloc
-	ld.Thearch.Archrelocvariant = archrelocvariant
-	ld.Thearch.Asmb = asmb
-	ld.Thearch.Elfreloc1 = elfreloc1
-	ld.Thearch.Elfsetupplt = elfsetupplt
-	ld.Thearch.Gentext = gentext
-	ld.Thearch.Machoreloc1 = machoreloc1
-	ld.Thearch.PEreloc1 = pereloc1
-	ld.Thearch.Lput = ld.Lputl
-	ld.Thearch.Wput = ld.Wputl
-	ld.Thearch.Vput = ld.Vputl
-
-	ld.Thearch.Linuxdynld = "/lib/ld-linux.so.2"
-	ld.Thearch.Freebsddynld = "/usr/libexec/ld-elf.so.1"
-	ld.Thearch.Openbsddynld = "/usr/libexec/ld.so"
-	ld.Thearch.Netbsddynld = "/usr/libexec/ld.elf_so"
-	ld.Thearch.Solarisdynld = "/lib/ld.so.1"
-}
-
-func archinit() {
-	// getgoextlinkenabled is based on GO_EXTLINK_ENABLED when
-	// Go was built; see ../../make.bash.
-	if ld.Linkmode == ld.LinkAuto && obj.Getgoextlinkenabled() == "0" {
-		ld.Linkmode = ld.LinkInternal
-	}
-
-	switch ld.HEADTYPE {
-	default:
-		if ld.Linkmode == ld.LinkAuto {
-			ld.Linkmode = ld.LinkInternal
-		}
-		if ld.Linkmode == ld.LinkExternal && obj.Getgoextlinkenabled() != "1" {
-			log.Fatalf("cannot use -linkmode=external with -H %s", ld.Headstr(int(ld.HEADTYPE)))
-		}
-
-	case obj.Hdarwin,
-		obj.Hfreebsd,
-		obj.Hlinux,
-		obj.Hnetbsd,
-		obj.Hopenbsd,
-		obj.Hwindows:
-		break
-	}
-
-	switch ld.HEADTYPE {
-	default:
-		ld.Exitf("unknown -H option: %v", ld.HEADTYPE)
-
-	case obj.Hplan9: /* plan 9 */
-		ld.HEADR = 32
-
-		if ld.INITTEXT == -1 {
-			ld.INITTEXT = 4096 + 32
-		}
-		if ld.INITDAT == -1 {
-			ld.INITDAT = 0
-		}
-		if ld.INITRND == -1 {
-			ld.INITRND = 4096
-		}
-
-	case obj.Hdarwin: /* apple MACH */
-		ld.Machoinit()
-
-		ld.HEADR = ld.INITIAL_MACHO_HEADR
-		if ld.INITTEXT == -1 {
-			ld.INITTEXT = 4096 + int64(ld.HEADR)
-		}
-		if ld.INITDAT == -1 {
-			ld.INITDAT = 0
-		}
-		if ld.INITRND == -1 {
-			ld.INITRND = 4096
-		}
-
-	case obj.Hlinux, /* elf32 executable */
-		obj.Hfreebsd,
-		obj.Hnetbsd,
-		obj.Hopenbsd:
-		ld.Elfinit()
-
-		ld.HEADR = ld.ELFRESERVE
-		if ld.INITTEXT == -1 {
-			ld.INITTEXT = 0x08048000 + int64(ld.HEADR)
-		}
-		if ld.INITDAT == -1 {
-			ld.INITDAT = 0
-		}
-		if ld.INITRND == -1 {
-			ld.INITRND = 4096
-		}
-
-	case obj.Hnacl:
-		ld.Elfinit()
-		ld.HEADR = 0x10000
-		ld.Funcalign = 32
-		if ld.INITTEXT == -1 {
-			ld.INITTEXT = 0x20000
-		}
-		if ld.INITDAT == -1 {
-			ld.INITDAT = 0
-		}
-		if ld.INITRND == -1 {
-			ld.INITRND = 0x10000
-		}
-
-	case obj.Hwindows: /* PE executable */
-		ld.Peinit()
-
-		ld.HEADR = ld.PEFILEHEADR
-		if ld.INITTEXT == -1 {
-			ld.INITTEXT = ld.PEBASE + int64(ld.PESECTHEADR)
-		}
-		if ld.INITDAT == -1 {
-			ld.INITDAT = 0
-		}
-		if ld.INITRND == -1 {
-			ld.INITRND = ld.PESECTALIGN
-		}
-	}
-
-	if ld.INITDAT != 0 && ld.INITRND != 0 {
-		fmt.Printf("warning: -D0x%x is ignored because of -R0x%x\n", uint64(ld.INITDAT), uint32(ld.INITRND))
-	}
-}