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cmd/link: remove coutbuf global variable

Browse Source 
Begin passing coutbuf by as a parameter. To make the initial plumbing
pass easier, it is also a field in the standard ctxt parameter.

Consolidate the byte writing functions into the OutBuf object.
The result is less architecture-dependent initialization.

To avoid plumbing out everywhere we want to report an error, move
handling of out file deletion to an AtExit function.

For #22095

Change-Id: I0863695241562e0662ae3669666c7922b8c846f9
Reviewed-on: https://go-review.googlesource.com/67318
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
David Crawshaw 2017-10-01 02:37:20 +00:00
parent 5d95de2072
commit 5fe9bbcf63
27 changed files with 794 additions and 874 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
src/cmd/link/internal/amd64/asm.go
View File

@ -361,7 +361,7 @@ func adddynrel(ctxt *ld.Link, s *ld.Symbol, r *ld.Reloc) bool {
}
func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
ld.Thearch.Vput(uint64(sectoff))
ctxt.Out.Write64(uint64(sectoff))
elfsym := r.Xsym.ElfsymForReloc()
switch r.Type {
@ -369,21 +369,21 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
return false
case objabi.R_ADDR:
if r.Siz == 4 {
ld.Thearch.Vput(ld.R_X86_64_32 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_X86_64_32 | uint64(elfsym)<<32)
} else if r.Siz == 8 {
ld.Thearch.Vput(ld.R_X86_64_64 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_X86_64_64 | uint64(elfsym)<<32)
} else {
return false
}
case objabi.R_TLS_LE:
if r.Siz == 4 {
ld.Thearch.Vput(ld.R_X86_64_TPOFF32 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_X86_64_TPOFF32 | uint64(elfsym)<<32)
} else {
return false
}
case objabi.R_TLS_IE:
if r.Siz == 4 {
ld.Thearch.Vput(ld.R_X86_64_GOTTPOFF | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_X86_64_GOTTPOFF | uint64(elfsym)<<32)
} else {
return false
}
@ -391,12 +391,12 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
if r.Siz == 4 {
if r.Xsym.Type == ld.SDYNIMPORT {
if ctxt.DynlinkingGo() {
ld.Thearch.Vput(ld.R_X86_64_PLT32 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_X86_64_PLT32 | uint64(elfsym)<<32)
} else {
ld.Thearch.Vput(ld.R_X86_64_GOTPCREL | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_X86_64_GOTPCREL | uint64(elfsym)<<32)
}
} else {
ld.Thearch.Vput(ld.R_X86_64_PC32 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_X86_64_PC32 | uint64(elfsym)<<32)
}
} else {
return false
@ -404,26 +404,26 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
case objabi.R_PCREL:
if r.Siz == 4 {
if r.Xsym.Type == ld.SDYNIMPORT && r.Xsym.ElfType == elf.STT_FUNC {
ld.Thearch.Vput(ld.R_X86_64_PLT32 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_X86_64_PLT32 | uint64(elfsym)<<32)
} else {
ld.Thearch.Vput(ld.R_X86_64_PC32 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_X86_64_PC32 | uint64(elfsym)<<32)
}
} else {
return false
}
case objabi.R_GOTPCREL:
if r.Siz == 4 {
ld.Thearch.Vput(ld.R_X86_64_GOTPCREL | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_X86_64_GOTPCREL | uint64(elfsym)<<32)
} else {
return false
}
}
ld.Thearch.Vput(uint64(r.Xadd))
ctxt.Out.Write64(uint64(r.Xadd))
return true
}
func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
func machoreloc1(arch *sys.Arch, out *ld.OutBuf, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
var v uint32
rs := r.Xsym
@ -481,12 +481,12 @@ func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool
v |= 3 << 25
}
ld.Thearch.Lput(uint32(sectoff))
ld.Thearch.Lput(v)
out.Write32(uint32(sectoff))
out.Write32(v)
return true
}
func pereloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
func pereloc1(arch *sys.Arch, out *ld.OutBuf, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
var v uint32
rs := r.Xsym
@ -496,8 +496,8 @@ func pereloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
return false
}
ld.Thearch.Lput(uint32(sectoff))
ld.Thearch.Lput(uint32(rs.Dynid))
out.Write32(uint32(sectoff))
out.Write32(uint32(rs.Dynid))
switch r.Type {
default:
@ -518,7 +518,7 @@ func pereloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
v = ld.IMAGE_REL_AMD64_REL32
}
ld.Thearch.Wput(uint16(v))
out.Write16(uint16(v))
return true
}
@ -663,11 +663,11 @@ func asmb(ctxt *ld.Link) {
}
sect := ld.Segtext.Sections[0]
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
// 0xCC is INT $3 - breakpoint instruction
ld.CodeblkPad(ctxt, int64(sect.Vaddr), int64(sect.Length), []byte{0xCC})
for _, sect = range ld.Segtext.Sections[1:] {
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Datblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
}
@ -675,14 +675,14 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f rodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrodata.Vaddr), int64(ld.Segrodata.Filelen))
}
if ld.Segrelrodata.Filelen > 0 {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f relrodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrelrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrelrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrelrodata.Vaddr), int64(ld.Segrelrodata.Filelen))
}
@ -690,10 +690,10 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f datblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segdata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segdata.Vaddr), int64(ld.Segdata.Filelen))
ld.Cseek(int64(ld.Segdwarf.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdwarf.Fileoff))
ld.Dwarfblk(ctxt, int64(ld.Segdwarf.Vaddr), int64(ld.Segdwarf.Filelen))
machlink := int64(0)
@ -757,14 +757,14 @@ func asmb(ctxt *ld.Link) {
symo = ld.Rnd(symo, ld.PEFILEALIGN)
}
ld.Cseek(symo)
ctxt.Out.SeekSet(symo)
switch ld.Headtype {
default:
if ld.Iself {
ld.Cseek(symo)
ctxt.Out.SeekSet(symo)
ld.Asmelfsym(ctxt)
ld.Cflush()
ld.Cwrite(ld.Elfstrdat)
ctxt.Out.Flush()
ctxt.Out.Write(ld.Elfstrdat)
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f dwarf\n", ld.Cputime())
@ -777,13 +777,13 @@ func asmb(ctxt *ld.Link) {
case objabi.Hplan9:
ld.Asmplan9sym(ctxt)
ld.Cflush()
ctxt.Out.Flush()
sym := ctxt.Syms.Lookup("pclntab", 0)
if sym != nil {
ld.Lcsize = int32(len(sym.P))
ld.Cwrite(sym.P)
ld.Cflush()
ctxt.Out.Write(sym.P)
ctxt.Out.Flush()
}
case objabi.Hwindows:
@ -801,23 +801,23 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f headr\n", ld.Cputime())
}
ld.Cseek(0)
ctxt.Out.SeekSet(0)
switch ld.Headtype {
default:
case objabi.Hplan9: /* plan9 */
magic := int32(4*26*26 + 7)
magic |= 0x00008000 /* fat header */
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 */
magic |= 0x00008000 /* fat header */
ctxt.Out.Write32b(uint32(magic)) /* magic */
ctxt.Out.Write32b(uint32(ld.Segtext.Filelen)) /* sizes */
ctxt.Out.Write32b(uint32(ld.Segdata.Filelen))
ctxt.Out.Write32b(uint32(ld.Segdata.Length - ld.Segdata.Filelen))
ctxt.Out.Write32b(uint32(ld.Symsize)) /* nsyms */
vl := ld.Entryvalue(ctxt)
ld.Lputb(PADDR(uint32(vl))) /* va of entry */
ld.Lputb(uint32(ld.Spsize)) /* sp offsets */
ld.Lputb(uint32(ld.Lcsize)) /* line offsets */
ld.Vputb(uint64(vl)) /* va of entry */
ctxt.Out.Write32b(PADDR(uint32(vl))) /* va of entry */
ctxt.Out.Write32b(uint32(ld.Spsize)) /* sp offsets */
ctxt.Out.Write32b(uint32(ld.Lcsize)) /* line offsets */
ctxt.Out.Write64b(uint64(vl)) /* va of entry */
case objabi.Hdarwin:
ld.Asmbmacho(ctxt)
@ -835,7 +835,7 @@ func asmb(ctxt *ld.Link) {
ld.Asmbpe(ctxt)
}
ld.Cflush()
ctxt.Out.Flush()
}
func tlsIEtoLE(s *ld.Symbol, off, size int) {

6
src/cmd/link/internal/amd64/obj.go
View File

@ -60,12 +60,6 @@ func Init() (*sys.Arch, ld.Arch) {
Gentext: gentext,
Machoreloc1: machoreloc1,
PEreloc1: pereloc1,
Lput: ld.Lputl,
Wput: ld.Wputl,
Vput: ld.Vputl,
Append16: ld.Append16l,
Append32: ld.Append32l,
Append64: ld.Append64l,
TLSIEtoLE: tlsIEtoLE,
Linuxdynld: "/lib64/ld-linux-x86-64.so.2",

74
src/cmd/link/internal/arm/asm.go
View File

@ -251,7 +251,7 @@ func adddynrel(ctxt *ld.Link, s *ld.Symbol, r *ld.Reloc) bool {
}
func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
ld.Thearch.Lput(uint32(sectoff))
ctxt.Out.Write32(uint32(sectoff))
elfsym := r.Xsym.ElfsymForReloc()
switch r.Type {
@ -259,33 +259,33 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
return false
case objabi.R_ADDR:
if r.Siz == 4 {
ld.Thearch.Lput(ld.R_ARM_ABS32 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_ARM_ABS32 | uint32(elfsym)<<8)
} else {
return false
}
case objabi.R_PCREL:
if r.Siz == 4 {
ld.Thearch.Lput(ld.R_ARM_REL32 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_ARM_REL32 | uint32(elfsym)<<8)
} else {
return false
}
case objabi.R_CALLARM:
if r.Siz == 4 {
if r.Add&0xff000000 == 0xeb000000 { // BL
ld.Thearch.Lput(ld.R_ARM_CALL | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_ARM_CALL | uint32(elfsym)<<8)
} else {
ld.Thearch.Lput(ld.R_ARM_JUMP24 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_ARM_JUMP24 | uint32(elfsym)<<8)
}
} else {
return false
}
case objabi.R_TLS_LE:
ld.Thearch.Lput(ld.R_ARM_TLS_LE32 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_ARM_TLS_LE32 | uint32(elfsym)<<8)
case objabi.R_TLS_IE:
ld.Thearch.Lput(ld.R_ARM_TLS_IE32 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_ARM_TLS_IE32 | uint32(elfsym)<<8)
case objabi.R_GOTPCREL:
if r.Siz == 4 {
ld.Thearch.Lput(ld.R_ARM_GOT_PREL | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_ARM_GOT_PREL | uint32(elfsym)<<8)
} else {
return false
}
@ -321,7 +321,7 @@ func elfsetupplt(ctxt *ld.Link) {
}
}
func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
func machoreloc1(arch *sys.Arch, out *ld.OutBuf, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
var v uint32
rs := r.Xsym
@ -349,10 +349,10 @@ func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool
o2 |= ld.MACHO_ARM_RELOC_PAIR << 24
o2 |= 2 << 28 // size = 4
ld.Thearch.Lput(o1)
ld.Thearch.Lput(uint32(ld.Symaddr(rs)))
ld.Thearch.Lput(o2)
ld.Thearch.Lput(uint32(s.Value + int64(r.Off)))
out.Write32(o1)
out.Write32(uint32(ld.Symaddr(rs)))
out.Write32(o2)
out.Write32(uint32(s.Value + int64(r.Off)))
return true
}
@ -400,8 +400,8 @@ func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool
v |= 3 << 25
}
ld.Thearch.Lput(uint32(sectoff))
ld.Thearch.Lput(v)
out.Write32(uint32(sectoff))
out.Write32(v)
return true
}
@ -746,10 +746,10 @@ func asmb(ctxt *ld.Link) {
}
sect := ld.Segtext.Sections[0]
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Codeblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
for _, sect = range ld.Segtext.Sections[1:] {
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Datblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
}
@ -757,14 +757,14 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f rodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrodata.Vaddr), int64(ld.Segrodata.Filelen))
}
if ld.Segrelrodata.Filelen > 0 {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f relrodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrelrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrelrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrelrodata.Vaddr), int64(ld.Segrelrodata.Filelen))
}
@ -772,10 +772,10 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f datblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segdata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segdata.Vaddr), int64(ld.Segdata.Filelen))
ld.Cseek(int64(ld.Segdwarf.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdwarf.Fileoff))
ld.Dwarfblk(ctxt, int64(ld.Segdwarf.Vaddr), int64(ld.Segdwarf.Filelen))
machlink := uint32(0)
@ -807,7 +807,7 @@ func asmb(ctxt *ld.Link) {
symo = uint32(ld.Segdwarf.Fileoff + uint64(ld.Rnd(int64(ld.Segdwarf.Filelen), int64(*ld.FlagRound))) + uint64(machlink))
}
ld.Cseek(int64(symo))
ctxt.Out.SeekSet(int64(symo))
switch ld.Headtype {
default:
if ld.Iself {
@ -815,8 +815,8 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f elfsym\n", ld.Cputime())
}
ld.Asmelfsym(ctxt)
ld.Cflush()
ld.Cwrite(ld.Elfstrdat)
ctxt.Out.Flush()
ctxt.Out.Write(ld.Elfstrdat)
if ld.Linkmode == ld.LinkExternal {
ld.Elfemitreloc(ctxt)
@ -825,13 +825,13 @@ func asmb(ctxt *ld.Link) {
case objabi.Hplan9:
ld.Asmplan9sym(ctxt)
ld.Cflush()
ctxt.Out.Flush()
sym := ctxt.Syms.Lookup("pclntab", 0)
if sym != nil {
ld.Lcsize = int32(len(sym.P))
ld.Cwrite(sym.P)
ld.Cflush()
ctxt.Out.Write(sym.P)
ctxt.Out.Flush()
}
case objabi.Hdarwin:
@ -844,18 +844,18 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f header\n", ld.Cputime())
}
ld.Cseek(0)
ctxt.Out.SeekSet(0)
switch ld.Headtype {
default:
case objabi.Hplan9: /* plan 9 */
ld.Lputb(0x647) /* 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(ctxt))) /* va of entry */
ld.Lputb(0)
ld.Lputb(uint32(ld.Lcsize))
ctxt.Out.Write32b(0x647) /* magic */
ctxt.Out.Write32b(uint32(ld.Segtext.Filelen)) /* sizes */
ctxt.Out.Write32b(uint32(ld.Segdata.Filelen))
ctxt.Out.Write32b(uint32(ld.Segdata.Length - ld.Segdata.Filelen))
ctxt.Out.Write32b(uint32(ld.Symsize)) /* nsyms */
ctxt.Out.Write32b(uint32(ld.Entryvalue(ctxt))) /* va of entry */
ctxt.Out.Write32b(0)
ctxt.Out.Write32b(uint32(ld.Lcsize))
case objabi.Hlinux,
objabi.Hfreebsd,
@ -868,7 +868,7 @@ func asmb(ctxt *ld.Link) {
ld.Asmbmacho(ctxt)
}
ld.Cflush()
ctxt.Out.Flush()
if *ld.FlagC {
fmt.Printf("textsize=%d\n", ld.Segtext.Filelen)
fmt.Printf("datsize=%d\n", ld.Segdata.Filelen)

6
src/cmd/link/internal/arm/obj.go
View File

@ -57,12 +57,6 @@ func Init() (*sys.Arch, ld.Arch) {
Elfsetupplt: elfsetupplt,
Gentext: gentext,
Machoreloc1: machoreloc1,
Lput: ld.Lputl,
Wput: ld.Wputl,
Vput: ld.Vputl,
Append16: ld.Append16l,
Append32: ld.Append32l,
Append64: ld.Append64l,
Linuxdynld: "/lib/ld-linux.so.3", // 2 for OABI, 3 for EABI
Freebsddynld: "/usr/libexec/ld-elf.so.1",

98
src/cmd/link/internal/arm64/asm.go
View File

@ -93,7 +93,7 @@ func adddynrel(ctxt *ld.Link, s *ld.Symbol, r *ld.Reloc) bool {
}
func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
ld.Thearch.Vput(uint64(sectoff))
ctxt.Out.Write64(uint64(sectoff))
elfsym := r.Xsym.ElfsymForReloc()
switch r.Type {
@ -102,38 +102,38 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
case objabi.R_ADDR:
switch r.Siz {
case 4:
ld.Thearch.Vput(ld.R_AARCH64_ABS32 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_AARCH64_ABS32 | uint64(elfsym)<<32)
case 8:
ld.Thearch.Vput(ld.R_AARCH64_ABS64 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_AARCH64_ABS64 | uint64(elfsym)<<32)
default:
return false
}
case objabi.R_ADDRARM64:
// two relocations: R_AARCH64_ADR_PREL_PG_HI21 and R_AARCH64_ADD_ABS_LO12_NC
ld.Thearch.Vput(ld.R_AARCH64_ADR_PREL_PG_HI21 | uint64(elfsym)<<32)
ld.Thearch.Vput(uint64(r.Xadd))
ld.Thearch.Vput(uint64(sectoff + 4))
ld.Thearch.Vput(ld.R_AARCH64_ADD_ABS_LO12_NC | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_AARCH64_ADR_PREL_PG_HI21 | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(r.Xadd))
ctxt.Out.Write64(uint64(sectoff + 4))
ctxt.Out.Write64(ld.R_AARCH64_ADD_ABS_LO12_NC | uint64(elfsym)<<32)
case objabi.R_ARM64_TLS_LE:
ld.Thearch.Vput(ld.R_AARCH64_TLSLE_MOVW_TPREL_G0 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_AARCH64_TLSLE_MOVW_TPREL_G0 | uint64(elfsym)<<32)
case objabi.R_ARM64_TLS_IE:
ld.Thearch.Vput(ld.R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 | uint64(elfsym)<<32)
ld.Thearch.Vput(uint64(r.Xadd))
ld.Thearch.Vput(uint64(sectoff + 4))
ld.Thearch.Vput(ld.R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(r.Xadd))
ctxt.Out.Write64(uint64(sectoff + 4))
ctxt.Out.Write64(ld.R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC | uint64(elfsym)<<32)
case objabi.R_ARM64_GOTPCREL:
ld.Thearch.Vput(ld.R_AARCH64_ADR_GOT_PAGE | uint64(elfsym)<<32)
ld.Thearch.Vput(uint64(r.Xadd))
ld.Thearch.Vput(uint64(sectoff + 4))
ld.Thearch.Vput(ld.R_AARCH64_LD64_GOT_LO12_NC | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_AARCH64_ADR_GOT_PAGE | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(r.Xadd))
ctxt.Out.Write64(uint64(sectoff + 4))
ctxt.Out.Write64(ld.R_AARCH64_LD64_GOT_LO12_NC | uint64(elfsym)<<32)
case objabi.R_CALLARM64:
if r.Siz != 4 {
return false
}
ld.Thearch.Vput(ld.R_AARCH64_CALL26 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_AARCH64_CALL26 | uint64(elfsym)<<32)
}
ld.Thearch.Vput(uint64(r.Xadd))
ctxt.Out.Write64(uint64(r.Xadd))
return true
}
@ -143,7 +143,7 @@ func elfsetupplt(ctxt *ld.Link) {
return
}
func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
func machoreloc1(arch *sys.Arch, out *ld.OutBuf, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
var v uint32
rs := r.Xsym
@ -184,14 +184,14 @@ func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool
// Two relocation entries: MACHO_ARM64_RELOC_PAGEOFF12 MACHO_ARM64_RELOC_PAGE21
// if r.Xadd is non-zero, add two MACHO_ARM64_RELOC_ADDEND.
if r.Xadd != 0 {
ld.Thearch.Lput(uint32(sectoff + 4))
ld.Thearch.Lput((ld.MACHO_ARM64_RELOC_ADDEND << 28) | (2 << 25) | uint32(r.Xadd&0xffffff))
out.Write32(uint32(sectoff + 4))
out.Write32((ld.MACHO_ARM64_RELOC_ADDEND << 28) | (2 << 25) | uint32(r.Xadd&0xffffff))
}
ld.Thearch.Lput(uint32(sectoff + 4))
ld.Thearch.Lput(v | (ld.MACHO_ARM64_RELOC_PAGEOFF12 << 28) | (2 << 25))
out.Write32(uint32(sectoff + 4))
out.Write32(v | (ld.MACHO_ARM64_RELOC_PAGEOFF12 << 28) | (2 << 25))
if r.Xadd != 0 {
ld.Thearch.Lput(uint32(sectoff))
ld.Thearch.Lput((ld.MACHO_ARM64_RELOC_ADDEND << 28) | (2 << 25) | uint32(r.Xadd&0xffffff))
out.Write32(uint32(sectoff))
out.Write32((ld.MACHO_ARM64_RELOC_ADDEND << 28) | (2 << 25) | uint32(r.Xadd&0xffffff))
}
v |= 1 << 24 // pc-relative bit
v |= ld.MACHO_ARM64_RELOC_PAGE21 << 28
@ -210,8 +210,8 @@ func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool
v |= 3 << 25
}
ld.Thearch.Lput(uint32(sectoff))
ld.Thearch.Lput(v)
out.Write32(uint32(sectoff))
out.Write32(v)
return true
}
@ -382,10 +382,10 @@ func asmb(ctxt *ld.Link) {
}
sect := ld.Segtext.Sections[0]
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Codeblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
for _, sect = range ld.Segtext.Sections[1:] {
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Datblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
}
@ -393,14 +393,14 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f rodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrodata.Vaddr), int64(ld.Segrodata.Filelen))
}
if ld.Segrelrodata.Filelen > 0 {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f relrodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrelrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrelrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrelrodata.Vaddr), int64(ld.Segrelrodata.Filelen))
}
@ -408,10 +408,10 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f datblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segdata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segdata.Vaddr), int64(ld.Segdata.Filelen))
ld.Cseek(int64(ld.Segdwarf.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdwarf.Fileoff))
ld.Dwarfblk(ctxt, int64(ld.Segdwarf.Vaddr), int64(ld.Segdwarf.Filelen))
machlink := uint32(0)
@ -443,7 +443,7 @@ func asmb(ctxt *ld.Link) {
symo = uint32(ld.Segdwarf.Fileoff + uint64(ld.Rnd(int64(ld.Segdwarf.Filelen), int64(*ld.FlagRound))) + uint64(machlink))
}
ld.Cseek(int64(symo))
ctxt.Out.SeekSet(int64(symo))
switch ld.Headtype {
default:
if ld.Iself {
@ -451,8 +451,8 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f elfsym\n", ld.Cputime())
}
ld.Asmelfsym(ctxt)
ld.Cflush()
ld.Cwrite(ld.Elfstrdat)
ctxt.Out.Flush()
ctxt.Out.Write(ld.Elfstrdat)
if ld.Linkmode == ld.LinkExternal {
ld.Elfemitreloc(ctxt)
@ -461,13 +461,13 @@ func asmb(ctxt *ld.Link) {
case objabi.Hplan9:
ld.Asmplan9sym(ctxt)
ld.Cflush()
ctxt.Out.Flush()
sym := ctxt.Syms.Lookup("pclntab", 0)
if sym != nil {
ld.Lcsize = int32(len(sym.P))
ld.Cwrite(sym.P)
ld.Cflush()
ctxt.Out.Write(sym.P)
ctxt.Out.Flush()
}
case objabi.Hdarwin:
@ -480,18 +480,18 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f header\n", ld.Cputime())
}
ld.Cseek(0)
ctxt.Out.SeekSet(0)
switch ld.Headtype {
default:
case objabi.Hplan9: /* plan 9 */
ld.Thearch.Lput(0x647) /* magic */
ld.Thearch.Lput(uint32(ld.Segtext.Filelen)) /* sizes */
ld.Thearch.Lput(uint32(ld.Segdata.Filelen))
ld.Thearch.Lput(uint32(ld.Segdata.Length - ld.Segdata.Filelen))
ld.Thearch.Lput(uint32(ld.Symsize)) /* nsyms */
ld.Thearch.Lput(uint32(ld.Entryvalue(ctxt))) /* va of entry */
ld.Thearch.Lput(0)
ld.Thearch.Lput(uint32(ld.Lcsize))
ctxt.Out.Write32(0x647) /* magic */
ctxt.Out.Write32(uint32(ld.Segtext.Filelen)) /* sizes */
ctxt.Out.Write32(uint32(ld.Segdata.Filelen))
ctxt.Out.Write32(uint32(ld.Segdata.Length - ld.Segdata.Filelen))
ctxt.Out.Write32(uint32(ld.Symsize)) /* nsyms */
ctxt.Out.Write32(uint32(ld.Entryvalue(ctxt))) /* va of entry */
ctxt.Out.Write32(0)
ctxt.Out.Write32(uint32(ld.Lcsize))
case objabi.Hlinux,
objabi.Hfreebsd,
@ -504,7 +504,7 @@ func asmb(ctxt *ld.Link) {
ld.Asmbmacho(ctxt)
}
ld.Cflush()
ctxt.Out.Flush()
if *ld.FlagC {
fmt.Printf("textsize=%d\n", ld.Segtext.Filelen)
fmt.Printf("datsize=%d\n", ld.Segdata.Filelen)

6
src/cmd/link/internal/arm64/obj.go
View File

@ -56,12 +56,6 @@ func Init() (*sys.Arch, ld.Arch) {
Elfsetupplt: elfsetupplt,
Gentext: gentext,
Machoreloc1: machoreloc1,
Lput: ld.Lputl,
Wput: ld.Wputl,
Vput: ld.Vputl,
Append16: ld.Append16l,
Append32: ld.Append32l,
Append64: ld.Append64l,
Linuxdynld: "/lib/ld-linux-aarch64.so.1",

41
src/cmd/link/internal/ld/data.go
View File

@ -849,7 +849,7 @@ func Codeblk(ctxt *Link, addr int64, size int64) {
}
func CodeblkPad(ctxt *Link, addr int64, size int64, pad []byte) {
if *flagA {
ctxt.Logf("codeblk [%#x,%#x) at offset %#x\n", addr, addr+size, coutbuf.Offset())
ctxt.Logf("codeblk [%#x,%#x) at offset %#x\n", addr, addr+size, ctxt.Out.Offset())
}
blk(ctxt, ctxt.Textp, addr, size, pad)
@ -932,13 +932,13 @@ func blk(ctxt *Link, syms []*Symbol, addr, size int64, pad []byte) {
errorexit()
}
if addr < s.Value {
strnputPad("", int(s.Value-addr), pad)
ctxt.Out.WriteStringPad("", int(s.Value-addr), pad)
addr = s.Value
}
Cwrite(s.P)
ctxt.Out.Write(s.P)
addr += int64(len(s.P))
if addr < s.Value+s.Size {
strnputPad("", int(s.Value+s.Size-addr), pad)
ctxt.Out.WriteStringPad("", int(s.Value+s.Size-addr), pad)
addr = s.Value + s.Size
}
if addr != s.Value+s.Size {
@ -951,14 +951,14 @@ func blk(ctxt *Link, syms []*Symbol, addr, size int64, pad []byte) {
}
if addr < eaddr {
strnputPad("", int(eaddr-addr), pad)
ctxt.Out.WriteStringPad("", int(eaddr-addr), pad)
}
Cflush()
ctxt.Out.Flush()
}
func Datblk(ctxt *Link, addr int64, size int64) {
if *flagA {
ctxt.Logf("datblk [%#x,%#x) at offset %#x\n", addr, addr+size, coutbuf.Offset())
ctxt.Logf("datblk [%#x,%#x) at offset %#x\n", addr, addr+size, ctxt.Out.Offset())
}
blk(ctxt, datap, addr, size, zeros[:])
@ -1029,7 +1029,7 @@ func Datblk(ctxt *Link, addr int64, size int64) {
func Dwarfblk(ctxt *Link, addr int64, size int64) {
if *flagA {
ctxt.Logf("dwarfblk [%#x,%#x) at offset %#x\n", addr, addr+size, coutbuf.Offset())
ctxt.Logf("dwarfblk [%#x,%#x) at offset %#x\n", addr, addr+size, ctxt.Out.Offset())
}
blk(ctxt, dwarfp, addr, size, zeros[:])
@ -1037,31 +1037,6 @@ func Dwarfblk(ctxt *Link, addr int64, size int64) {
var zeros [512]byte
// strnput writes the first n bytes of s.
// If n is larger than len(s),
// it is padded with NUL bytes.
func strnput(s string, n int) {
strnputPad(s, n, zeros[:])
}
// strnput writes the first n bytes of s.
// If n is larger than len(s),
// it is padded with the bytes in pad (repeated as needed).
func strnputPad(s string, n int, pad []byte) {
if len(s) >= n {
Cwritestring(s[:n])
} else {
Cwritestring(s)
n -= len(s)
for n > len(pad) {
Cwrite(pad)
n -= len(pad)
}
Cwrite(pad[:n])
}
}
var strdata []*Symbol
func addstrdata1(ctxt *Link, arg string) {

27
src/cmd/link/internal/ld/dwarf.go
View File

@ -16,6 +16,7 @@ package ld
import (
"cmd/internal/dwarf"
"cmd/internal/objabi"
"cmd/internal/sys"
"fmt"
"log"
"os"
@ -1137,7 +1138,7 @@ const (
)
// appendPCDeltaCFA appends per-PC CFA deltas to b and returns the final slice.
func appendPCDeltaCFA(b []byte, deltapc, cfa int64) []byte {
func appendPCDeltaCFA(arch *sys.Arch, b []byte, deltapc, cfa int64) []byte {
b = append(b, dwarf.DW_CFA_def_cfa_offset_sf)
b = dwarf.AppendSleb128(b, cfa/dataAlignmentFactor)
@ -1148,11 +1149,11 @@ func appendPCDeltaCFA(b []byte, deltapc, cfa int64) []byte {
b = append(b, dwarf.DW_CFA_advance_loc1)
b = append(b, uint8(deltapc))
case deltapc < 0x10000:
b = append(b, dwarf.DW_CFA_advance_loc2)
b = Thearch.Append16(b, uint16(deltapc))
b = append(b, dwarf.DW_CFA_advance_loc2, 0, 0)
arch.ByteOrder.PutUint16(b[len(b)-2:], uint16(deltapc))
default:
b = append(b, dwarf.DW_CFA_advance_loc4)
b = Thearch.Append32(b, uint32(deltapc))
b = append(b, dwarf.DW_CFA_advance_loc4, 0, 0, 0, 0)
arch.ByteOrder.PutUint32(b[len(b)-4:], uint32(deltapc))
}
return b
}
@ -1243,9 +1244,9 @@ func writeframes(ctxt *Link, syms []*Symbol) []*Symbol {
deltaBuf = append(deltaBuf, dwarf.DW_CFA_same_value)
deltaBuf = dwarf.AppendUleb128(deltaBuf, uint64(Thearch.Dwarfreglr))
}
deltaBuf = appendPCDeltaCFA(deltaBuf, int64(nextpc)-int64(pcsp.pc), int64(pcsp.value))
deltaBuf = appendPCDeltaCFA(ctxt.Arch, deltaBuf, int64(nextpc)-int64(pcsp.pc), int64(pcsp.value))
} else {
deltaBuf = appendPCDeltaCFA(deltaBuf, int64(nextpc)-int64(pcsp.pc), int64(ctxt.Arch.PtrSize)+int64(pcsp.value))
deltaBuf = appendPCDeltaCFA(ctxt.Arch, deltaBuf, int64(nextpc)-int64(pcsp.pc), int64(ctxt.Arch.PtrSize)+int64(pcsp.value))
}
}
pad := int(Rnd(int64(len(deltaBuf)), int64(ctxt.Arch.PtrSize))) - len(deltaBuf)
@ -1655,19 +1656,19 @@ func dwarfaddelfsectionsyms(ctxt *Link) {
return
}
sym := ctxt.Syms.Lookup(".debug_info", 0)
putelfsectionsym(sym, sym.Sect.Elfsect.shnum)
putelfsectionsym(ctxt.Out, sym, sym.Sect.Elfsect.shnum)
sym = ctxt.Syms.Lookup(".debug_abbrev", 0)
putelfsectionsym(sym, sym.Sect.Elfsect.shnum)
putelfsectionsym(ctxt.Out, sym, sym.Sect.Elfsect.shnum)
sym = ctxt.Syms.Lookup(".debug_line", 0)
putelfsectionsym(sym, sym.Sect.Elfsect.shnum)
putelfsectionsym(ctxt.Out, sym, sym.Sect.Elfsect.shnum)
sym = ctxt.Syms.Lookup(".debug_frame", 0)
putelfsectionsym(sym, sym.Sect.Elfsect.shnum)
putelfsectionsym(ctxt.Out, sym, sym.Sect.Elfsect.shnum)
sym = ctxt.Syms.Lookup(".debug_loc", 0)
if sym.Sect != nil {
putelfsectionsym(sym, sym.Sect.Elfsect.shnum)
putelfsectionsym(ctxt.Out, sym, sym.Sect.Elfsect.shnum)
}
sym = ctxt.Syms.Lookup(".debug_ranges", 0)
if sym.Sect != nil {
putelfsectionsym(sym, sym.Sect.Elfsect.shnum)
putelfsectionsym(ctxt.Out, sym, sym.Sect.Elfsect.shnum)
}
}

241
src/cmd/link/internal/ld/elf.go
View File

@ -990,72 +990,72 @@ func fixElfPhdr(e *ElfPhdr) {
e.memsz += uint64(frag)
}
func elf64phdr(e *ElfPhdr) {
func elf64phdr(out *OutBuf, e *ElfPhdr) {
if e.type_ == PT_LOAD {
fixElfPhdr(e)
}
Thearch.Lput(e.type_)
Thearch.Lput(e.flags)
Thearch.Vput(e.off)
Thearch.Vput(e.vaddr)
Thearch.Vput(e.paddr)
Thearch.Vput(e.filesz)
Thearch.Vput(e.memsz)
Thearch.Vput(e.align)
out.Write32(e.type_)
out.Write32(e.flags)
out.Write64(e.off)
out.Write64(e.vaddr)
out.Write64(e.paddr)
out.Write64(e.filesz)
out.Write64(e.memsz)
out.Write64(e.align)
}
func elf32phdr(e *ElfPhdr) {
func elf32phdr(out *OutBuf, e *ElfPhdr) {
if e.type_ == PT_LOAD {
fixElfPhdr(e)
}
Thearch.Lput(e.type_)
Thearch.Lput(uint32(e.off))
Thearch.Lput(uint32(e.vaddr))
Thearch.Lput(uint32(e.paddr))
Thearch.Lput(uint32(e.filesz))
Thearch.Lput(uint32(e.memsz))
Thearch.Lput(e.flags)
Thearch.Lput(uint32(e.align))
out.Write32(e.type_)
out.Write32(uint32(e.off))
out.Write32(uint32(e.vaddr))
out.Write32(uint32(e.paddr))
out.Write32(uint32(e.filesz))
out.Write32(uint32(e.memsz))
out.Write32(e.flags)
out.Write32(uint32(e.align))
}
func elf64shdr(e *ElfShdr) {
Thearch.Lput(e.name)
Thearch.Lput(e.type_)
Thearch.Vput(e.flags)
Thearch.Vput(e.addr)
Thearch.Vput(e.off)
Thearch.Vput(e.size)
Thearch.Lput(e.link)
Thearch.Lput(e.info)
Thearch.Vput(e.addralign)
Thearch.Vput(e.entsize)
func elf64shdr(out *OutBuf, e *ElfShdr) {
out.Write32(e.name)
out.Write32(e.type_)
out.Write64(e.flags)
out.Write64(e.addr)
out.Write64(e.off)
out.Write64(e.size)
out.Write32(e.link)
out.Write32(e.info)
out.Write64(e.addralign)
out.Write64(e.entsize)
}
func elf32shdr(e *ElfShdr) {
Thearch.Lput(e.name)
Thearch.Lput(e.type_)
Thearch.Lput(uint32(e.flags))
Thearch.Lput(uint32(e.addr))
Thearch.Lput(uint32(e.off))
Thearch.Lput(uint32(e.size))
Thearch.Lput(e.link)
Thearch.Lput(e.info)
Thearch.Lput(uint32(e.addralign))
Thearch.Lput(uint32(e.entsize))
func elf32shdr(out *OutBuf, e *ElfShdr) {
out.Write32(e.name)
out.Write32(e.type_)
out.Write32(uint32(e.flags))
out.Write32(uint32(e.addr))
out.Write32(uint32(e.off))
out.Write32(uint32(e.size))
out.Write32(e.link)
out.Write32(e.info)
out.Write32(uint32(e.addralign))
out.Write32(uint32(e.entsize))
}
func elfwriteshdrs() uint32 {
func elfwriteshdrs(out *OutBuf) uint32 {
if elf64 {
for i := 0; i < int(ehdr.shnum); i++ {
elf64shdr(shdr[i])
elf64shdr(out, shdr[i])
}
return uint32(ehdr.shnum) * ELF64SHDRSIZE
}
for i := 0; i < int(ehdr.shnum); i++ {
elf32shdr(shdr[i])
elf32shdr(out, shdr[i])
}
return uint32(ehdr.shnum) * ELF32SHDRSIZE
}
@ -1071,16 +1071,16 @@ func elfsetstring(s *Symbol, str string, off int) {
nelfstr++
}
func elfwritephdrs() uint32 {
func elfwritephdrs(out *OutBuf) uint32 {
if elf64 {
for i := 0; i < int(ehdr.phnum); i++ {
elf64phdr(phdr[i])
elf64phdr(out, phdr[i])
}
return uint32(ehdr.phnum) * ELF64PHDRSIZE
}
for i := 0; i < int(ehdr.phnum); i++ {
elf32phdr(phdr[i])
elf32phdr(out, phdr[i])
}
return uint32(ehdr.phnum) * ELF32PHDRSIZE
}
@ -1119,47 +1119,47 @@ func getElfEhdr() *ElfEhdr {
return &ehdr
}
func elf64writehdr() uint32 {
Cwrite(ehdr.ident[:])
Thearch.Wput(ehdr.type_)
Thearch.Wput(ehdr.machine)
Thearch.Lput(ehdr.version)
Thearch.Vput(ehdr.entry)
Thearch.Vput(ehdr.phoff)
Thearch.Vput(ehdr.shoff)
Thearch.Lput(ehdr.flags)
Thearch.Wput(ehdr.ehsize)
Thearch.Wput(ehdr.phentsize)
Thearch.Wput(ehdr.phnum)
Thearch.Wput(ehdr.shentsize)
Thearch.Wput(ehdr.shnum)
Thearch.Wput(ehdr.shstrndx)
func elf64writehdr(out *OutBuf) uint32 {
out.Write(ehdr.ident[:])
out.Write16(ehdr.type_)
out.Write16(ehdr.machine)
out.Write32(ehdr.version)
out.Write64(ehdr.entry)
out.Write64(ehdr.phoff)
out.Write64(ehdr.shoff)
out.Write32(ehdr.flags)
out.Write16(ehdr.ehsize)
out.Write16(ehdr.phentsize)
out.Write16(ehdr.phnum)
out.Write16(ehdr.shentsize)
out.Write16(ehdr.shnum)
out.Write16(ehdr.shstrndx)
return ELF64HDRSIZE
}
func elf32writehdr() uint32 {
Cwrite(ehdr.ident[:])
Thearch.Wput(ehdr.type_)
Thearch.Wput(ehdr.machine)
Thearch.Lput(ehdr.version)
Thearch.Lput(uint32(ehdr.entry))
Thearch.Lput(uint32(ehdr.phoff))
Thearch.Lput(uint32(ehdr.shoff))
Thearch.Lput(ehdr.flags)
Thearch.Wput(ehdr.ehsize)
Thearch.Wput(ehdr.phentsize)
Thearch.Wput(ehdr.phnum)
Thearch.Wput(ehdr.shentsize)
Thearch.Wput(ehdr.shnum)
Thearch.Wput(ehdr.shstrndx)
func elf32writehdr(out *OutBuf) uint32 {
out.Write(ehdr.ident[:])
out.Write16(ehdr.type_)
out.Write16(ehdr.machine)
out.Write32(ehdr.version)
out.Write32(uint32(ehdr.entry))
out.Write32(uint32(ehdr.phoff))
out.Write32(uint32(ehdr.shoff))
out.Write32(ehdr.flags)
out.Write16(ehdr.ehsize)
out.Write16(ehdr.phentsize)
out.Write16(ehdr.phnum)
out.Write16(ehdr.shentsize)
out.Write16(ehdr.shnum)
out.Write16(ehdr.shstrndx)
return ELF32HDRSIZE
}
func elfwritehdr() uint32 {
func elfwritehdr(out *OutBuf) uint32 {
if elf64 {
return elf64writehdr()
return elf64writehdr(out)
}
return elf32writehdr()
return elf32writehdr(out)
}
/* Taken directly from the definition document for ELF64 */
@ -1217,11 +1217,11 @@ func elfinterp(sh *ElfShdr, startva uint64, resoff uint64, p string) int {
return n
}
func elfwriteinterp() int {
func elfwriteinterp(out *OutBuf) int {
sh := elfshname(".interp")
Cseek(int64(sh.off))
coutbuf.WriteString(interp)
Cput(0)
out.SeekSet(int64(sh.off))
out.WriteString(interp)
out.Write8(0)
return int(sh.size)
}
@ -1240,15 +1240,15 @@ func elfnote(sh *ElfShdr, startva uint64, resoff uint64, sz int, alloc bool) int
return int(n)
}
func elfwritenotehdr(str string, namesz uint32, descsz uint32, tag uint32) *ElfShdr {
func elfwritenotehdr(out *OutBuf, str string, namesz uint32, descsz uint32, tag uint32) *ElfShdr {
sh := elfshname(str)
// Write Elf_Note header.
Cseek(int64(sh.off))
out.SeekSet(int64(sh.off))
Thearch.Lput(namesz)
Thearch.Lput(descsz)
Thearch.Lput(tag)
out.Write32(namesz)
out.Write32(descsz)
out.Write32(tag)
return sh
}
@ -1268,19 +1268,18 @@ func elfnetbsdsig(sh *ElfShdr, startva uint64, resoff uint64) int {
return elfnote(sh, startva, resoff, n, true)
}
func elfwritenetbsdsig() int {
func elfwritenetbsdsig(out *OutBuf) int {
// Write Elf_Note header.
sh := elfwritenotehdr(".note.netbsd.ident", ELF_NOTE_NETBSD_NAMESZ, ELF_NOTE_NETBSD_DESCSZ, ELF_NOTE_NETBSD_TAG)
sh := elfwritenotehdr(out, ".note.netbsd.ident", ELF_NOTE_NETBSD_NAMESZ, ELF_NOTE_NETBSD_DESCSZ, ELF_NOTE_NETBSD_TAG)
if sh == nil {
return 0
}
// Followed by NetBSD string and version.
Cwrite(ELF_NOTE_NETBSD_NAME)
Cput(0)
Thearch.Lput(ELF_NOTE_NETBSD_VERSION)
out.Write(ELF_NOTE_NETBSD_NAME)
out.Write8(0)
out.Write32(ELF_NOTE_NETBSD_VERSION)
return int(sh.size)
}
@ -1300,18 +1299,18 @@ func elfopenbsdsig(sh *ElfShdr, startva uint64, resoff uint64) int {
return elfnote(sh, startva, resoff, n, true)
}
func elfwriteopenbsdsig() int {
func elfwriteopenbsdsig(out *OutBuf) int {
// Write Elf_Note header.
sh := elfwritenotehdr(".note.openbsd.ident", ELF_NOTE_OPENBSD_NAMESZ, ELF_NOTE_OPENBSD_DESCSZ, ELF_NOTE_OPENBSD_TAG)
sh := elfwritenotehdr(out, ".note.openbsd.ident", ELF_NOTE_OPENBSD_NAMESZ, ELF_NOTE_OPENBSD_DESCSZ, ELF_NOTE_OPENBSD_TAG)
if sh == nil {
return 0
}
// Followed by OpenBSD string and version.
Cwrite(ELF_NOTE_OPENBSD_NAME)
out.Write(ELF_NOTE_OPENBSD_NAME)
Thearch.Lput(ELF_NOTE_OPENBSD_VERSION)
out.Write32(ELF_NOTE_OPENBSD_VERSION)
return int(sh.size)
}
@ -1361,30 +1360,30 @@ func elfgobuildid(sh *ElfShdr, startva uint64, resoff uint64) int {
return elfnote(sh, startva, resoff, n, true)
}
func elfwritebuildinfo() int {
sh := elfwritenotehdr(".note.gnu.build-id", ELF_NOTE_BUILDINFO_NAMESZ, uint32(len(buildinfo)), ELF_NOTE_BUILDINFO_TAG)
func elfwritebuildinfo(out *OutBuf) int {
sh := elfwritenotehdr(out, ".note.gnu.build-id", ELF_NOTE_BUILDINFO_NAMESZ, uint32(len(buildinfo)), ELF_NOTE_BUILDINFO_TAG)
if sh == nil {
return 0
}
Cwrite(ELF_NOTE_BUILDINFO_NAME)
Cwrite(buildinfo)
out.Write(ELF_NOTE_BUILDINFO_NAME)
out.Write(buildinfo)
var zero = make([]byte, 4)
Cwrite(zero[:int(Rnd(int64(len(buildinfo)), 4)-int64(len(buildinfo)))])
out.Write(zero[:int(Rnd(int64(len(buildinfo)), 4)-int64(len(buildinfo)))])
return int(sh.size)
}
func elfwritegobuildid() int {
sh := elfwritenotehdr(".note.go.buildid", uint32(len(ELF_NOTE_GO_NAME)), uint32(len(*flagBuildid)), ELF_NOTE_GOBUILDID_TAG)
func elfwritegobuildid(out *OutBuf) int {
sh := elfwritenotehdr(out, ".note.go.buildid", uint32(len(ELF_NOTE_GO_NAME)), uint32(len(*flagBuildid)), ELF_NOTE_GOBUILDID_TAG)
if sh == nil {
return 0
}
Cwrite(ELF_NOTE_GO_NAME)
Cwrite([]byte(*flagBuildid))
out.Write(ELF_NOTE_GO_NAME)
out.Write([]byte(*flagBuildid))
var zero = make([]byte, 4)
Cwrite(zero[:int(Rnd(int64(len(*flagBuildid)), 4)-int64(len(*flagBuildid)))])
out.Write(zero[:int(Rnd(int64(len(*flagBuildid)), 4)-int64(len(*flagBuildid)))])
return int(sh.size)
}
@ -1766,7 +1765,7 @@ func elfrelocsect(ctxt *Link, sect *Section, syms []*Symbol) {
return
}
sect.Reloff = uint64(coutbuf.Offset())
sect.Reloff = uint64(ctxt.Out.Offset())
for i, s := range syms {
if !s.Attr.Reachable() {
continue
@ -1806,12 +1805,12 @@ func elfrelocsect(ctxt *Link, sect *Section, syms []*Symbol) {
}
}
sect.Rellen = uint64(coutbuf.Offset()) - sect.Reloff
sect.Rellen = uint64(ctxt.Out.Offset()) - sect.Reloff
}
func Elfemitreloc(ctxt *Link) {
for coutbuf.Offset()&7 != 0 {
Cput(0)
for ctxt.Out.Offset()&7 != 0 {
ctxt.Out.Write8(0)
}
for _, sect := range Segtext.Sections {
@ -2655,26 +2654,26 @@ elfobj:
pph.memsz = pph.filesz
}
Cseek(0)
ctxt.Out.SeekSet(0)
a := int64(0)
a += int64(elfwritehdr())
a += int64(elfwritephdrs())
a += int64(elfwriteshdrs())
a += int64(elfwritehdr(ctxt.Out))
a += int64(elfwritephdrs(ctxt.Out))
a += int64(elfwriteshdrs(ctxt.Out))
if !*FlagD {
a += int64(elfwriteinterp())
a += int64(elfwriteinterp(ctxt.Out))
}
if Linkmode != LinkExternal {
if Headtype == objabi.Hnetbsd {
a += int64(elfwritenetbsdsig())
a += int64(elfwritenetbsdsig(ctxt.Out))
}
if Headtype == objabi.Hopenbsd {
a += int64(elfwriteopenbsdsig())
a += int64(elfwriteopenbsdsig(ctxt.Out))
}
if len(buildinfo) > 0 {
a += int64(elfwritebuildinfo())
a += int64(elfwritebuildinfo(ctxt.Out))
}
if *flagBuildid != "" {
a += int64(elfwritegobuildid())
a += int64(elfwritegobuildid(ctxt.Out))
}
}

100
src/cmd/link/internal/ld/lib.go
View File

@ -105,14 +105,8 @@ type Arch struct {
Elfreloc1 func(*Link, *Reloc, int64) bool
Elfsetupplt func(*Link)
Gentext func(*Link)
Machoreloc1 func(*sys.Arch, *Symbol, *Reloc, int64) bool
PEreloc1 func(*sys.Arch, *Symbol, *Reloc, int64) bool
Wput func(uint16)
Lput func(uint32)
Vput func(uint64)
Append16 func(b []byte, v uint16) []byte
Append32 func(b []byte, v uint32) []byte
Append64 func(b []byte, v uint64) []byte
Machoreloc1 func(*sys.Arch, *OutBuf, *Symbol, *Reloc, int64) bool
PEreloc1 func(*sys.Arch, *OutBuf, *Symbol, *Reloc, int64) bool
// TLSIEtoLE converts a TLS Initial Executable relocation to
// a TLS Local Executable relocation.
@ -220,31 +214,6 @@ const (
Pkgdef
)
// TODO(dfc) outBuf duplicates bio.Writer
type outBuf struct {
w *bufio.Writer
f *os.File
off int64
}
func (w *outBuf) Write(p []byte) (n int, err error) {
n, err = w.w.Write(p)
w.off += int64(n)
return n, err
}
func (w *outBuf) WriteString(s string) (n int, err error) {
n, err = coutbuf.w.WriteString(s)
w.off += int64(n)
return n, err
}
func (w *outBuf) Offset() int64 {
return w.off
}
var coutbuf outBuf
const pkgdef = "__.PKGDEF"
var (
@ -297,8 +266,8 @@ func libinit(ctxt *Link) {
Exitf("cannot create %s: %v", *flagOutfile, err)
}
coutbuf.w = bufio.NewWriter(f)
coutbuf.f = f
ctxt.Out.w = bufio.NewWriter(f)
ctxt.Out.f = f
if *flagEntrySymbol == "" {
switch Buildmode {
@ -315,23 +284,9 @@ func libinit(ctxt *Link) {
}
func errorexit() {
if coutbuf.f != nil {
if nerrors != 0 {
Cflush()
}
// For rmtemp run at atexit time on Windows.
if err := coutbuf.f.Close(); err != nil {
Exitf("close: %v", err)
}
}
if nerrors != 0 {
if coutbuf.f != nil {
mayberemoveoutfile()
}
Exit(2)
}
Exit(0)
}
@ -606,7 +561,7 @@ func (ctxt *Link) loadlib() {
}
}
} else {
hostlinksetup()
hostlinksetup(ctxt)
}
// We've loaded all the code now.
@ -934,7 +889,7 @@ func rmtemp() {
os.RemoveAll(*flagTmpdir)
}
func hostlinksetup() {
func hostlinksetup(ctxt *Link) {
if Linkmode != LinkExternal {
return
}
@ -956,7 +911,7 @@ func hostlinksetup() {
}
// change our output to temporary object file
coutbuf.f.Close()
ctxt.Out.f.Close()
mayberemoveoutfile()
p := filepath.Join(*flagTmpdir, "go.o")
@ -966,8 +921,9 @@ func hostlinksetup() {
Exitf("cannot create %s: %v", p, err)
}
coutbuf.w = bufio.NewWriter(f)
coutbuf.f = f
ctxt.Out.w = bufio.NewWriter(f)
ctxt.Out.f = f
ctxt.Out.off = 0
}
// hostobjCopy creates a copy of the object files in hostobj in a
@ -1048,11 +1004,11 @@ func (ctxt *Link) archive() {
// Force the buffer to flush here so that external
// tools will see a complete file.
Cflush()
if err := coutbuf.f.Close(); err != nil {
ctxt.Out.Flush()
if err := ctxt.Out.f.Close(); err != nil {
Exitf("close: %v", err)
}
coutbuf.f = nil
ctxt.Out.f = nil
argv := []string{*flagExtar, "-q", "-c", "-s", *flagOutfile}
argv = append(argv, filepath.Join(*flagTmpdir, "go.o"))
@ -1907,36 +1863,6 @@ func stkprint(ctxt *Link, ch *chain, limit int) {
}
}
func Cflush() {
if err := coutbuf.w.Flush(); err != nil {
Exitf("flushing %s: %v", coutbuf.f.Name(), err)
}
}
func Cseek(p int64) {
if p == coutbuf.off {
return
}
Cflush()
if _, err := coutbuf.f.Seek(p, 0); err != nil {
Exitf("seeking in output [0, 1]: %v", err)
}
coutbuf.off = p
}
func Cwritestring(s string) {
coutbuf.WriteString(s)
}
func Cwrite(p []byte) {
coutbuf.Write(p)
}
func Cput(c uint8) {
coutbuf.w.WriteByte(c)
coutbuf.off++
}
func usage() {
fmt.Fprintf(os.Stderr, "usage: link [options] main.o\n")
objabi.Flagprint(2)

2
src/cmd/link/internal/ld/link.go
View File

@ -212,6 +212,8 @@ type Shlib struct {
// Link holds the context for writing object code from a compiler
// or for reading that input into the linker.
type Link struct {
Out *OutBuf
Syms *Symbols
Arch *sys.Arch

146
src/cmd/link/internal/ld/macho.go
View File

@ -229,8 +229,8 @@ var dylib []string
var linkoff int64
func machowrite(arch *sys.Arch) int {
o1 := coutbuf.Offset()
func machowrite(arch *sys.Arch, out *OutBuf) int {
o1 := out.Offset()
loadsize := 4 * 4 * ndebug
for i := 0; i < len(load); i++ {
@ -245,97 +245,97 @@ func machowrite(arch *sys.Arch) int {
}
if arch.PtrSize == 8 {
Thearch.Lput(MH_MAGIC_64)
out.Write32(MH_MAGIC_64)
} else {
Thearch.Lput(MH_MAGIC)
out.Write32(MH_MAGIC)
}
Thearch.Lput(machohdr.cpu)
Thearch.Lput(machohdr.subcpu)
out.Write32(machohdr.cpu)
out.Write32(machohdr.subcpu)
if Linkmode == LinkExternal {
Thearch.Lput(MH_OBJECT) /* file type - mach object */
out.Write32(MH_OBJECT) /* file type - mach object */
} else {
Thearch.Lput(MH_EXECUTE) /* file type - mach executable */
out.Write32(MH_EXECUTE) /* file type - mach executable */
}
Thearch.Lput(uint32(len(load)) + uint32(nseg) + uint32(ndebug))
Thearch.Lput(uint32(loadsize))
out.Write32(uint32(len(load)) + uint32(nseg) + uint32(ndebug))
out.Write32(uint32(loadsize))
if nkind[SymKindUndef] == 0 {
Thearch.Lput(MH_NOUNDEFS) /* flags - no undefines */
out.Write32(MH_NOUNDEFS) /* flags - no undefines */
} else {
Thearch.Lput(0) /* flags */
out.Write32(0) /* flags */
}
if arch.PtrSize == 8 {
Thearch.Lput(0) /* reserved */
out.Write32(0) /* reserved */
}
for i := 0; i < nseg; i++ {
s := &seg[i]
if arch.PtrSize == 8 {
Thearch.Lput(LC_SEGMENT_64)
Thearch.Lput(72 + 80*s.nsect)
strnput(s.name, 16)
Thearch.Vput(s.vaddr)
Thearch.Vput(s.vsize)
Thearch.Vput(s.fileoffset)
Thearch.Vput(s.filesize)
Thearch.Lput(s.prot1)
Thearch.Lput(s.prot2)
Thearch.Lput(s.nsect)
Thearch.Lput(s.flag)
out.Write32(LC_SEGMENT_64)
out.Write32(72 + 80*s.nsect)
out.WriteStringN(s.name, 16)
out.Write64(s.vaddr)
out.Write64(s.vsize)
out.Write64(s.fileoffset)
out.Write64(s.filesize)
out.Write32(s.prot1)
out.Write32(s.prot2)
out.Write32(s.nsect)
out.Write32(s.flag)
} else {
Thearch.Lput(LC_SEGMENT)
Thearch.Lput(56 + 68*s.nsect)
strnput(s.name, 16)
Thearch.Lput(uint32(s.vaddr))
Thearch.Lput(uint32(s.vsize))
Thearch.Lput(uint32(s.fileoffset))
Thearch.Lput(uint32(s.filesize))
Thearch.Lput(s.prot1)
Thearch.Lput(s.prot2)
Thearch.Lput(s.nsect)
Thearch.Lput(s.flag)
out.Write32(LC_SEGMENT)
out.Write32(56 + 68*s.nsect)
out.WriteStringN(s.name, 16)
out.Write32(uint32(s.vaddr))
out.Write32(uint32(s.vsize))
out.Write32(uint32(s.fileoffset))
out.Write32(uint32(s.filesize))
out.Write32(s.prot1)
out.Write32(s.prot2)
out.Write32(s.nsect)
out.Write32(s.flag)
}
for j := uint32(0); j < s.nsect; j++ {
t := &s.sect[j]
if arch.PtrSize == 8 {
strnput(t.name, 16)
strnput(t.segname, 16)
Thearch.Vput(t.addr)
Thearch.Vput(t.size)
Thearch.Lput(t.off)
Thearch.Lput(t.align)
Thearch.Lput(t.reloc)
Thearch.Lput(t.nreloc)
Thearch.Lput(t.flag)
Thearch.Lput(t.res1) /* reserved */
Thearch.Lput(t.res2) /* reserved */
Thearch.Lput(0) /* reserved */
out.WriteStringN(t.name, 16)
out.WriteStringN(t.segname, 16)
out.Write64(t.addr)
out.Write64(t.size)
out.Write32(t.off)
out.Write32(t.align)
out.Write32(t.reloc)
out.Write32(t.nreloc)
out.Write32(t.flag)
out.Write32(t.res1) /* reserved */
out.Write32(t.res2) /* reserved */
out.Write32(0) /* reserved */
} else {
strnput(t.name, 16)
strnput(t.segname, 16)
Thearch.Lput(uint32(t.addr))
Thearch.Lput(uint32(t.size))
Thearch.Lput(t.off)
Thearch.Lput(t.align)
Thearch.Lput(t.reloc)
Thearch.Lput(t.nreloc)
Thearch.Lput(t.flag)
Thearch.Lput(t.res1) /* reserved */
Thearch.Lput(t.res2) /* reserved */
out.WriteStringN(t.name, 16)
out.WriteStringN(t.segname, 16)
out.Write32(uint32(t.addr))
out.Write32(uint32(t.size))
out.Write32(t.off)
out.Write32(t.align)
out.Write32(t.reloc)
out.Write32(t.nreloc)
out.Write32(t.flag)
out.Write32(t.res1) /* reserved */
out.Write32(t.res2) /* reserved */
}
}
}
for i := 0; i < len(load); i++ {
l := &load[i]
Thearch.Lput(l.type_)
Thearch.Lput(4 * (uint32(len(l.data)) + 2))
out.Write32(l.type_)
out.Write32(4 * (uint32(len(l.data)) + 2))
for j := 0; j < len(l.data); j++ {
Thearch.Lput(l.data[j])
out.Write32(l.data[j])
}
}
return int(coutbuf.Offset() - o1)
return int(out.Offset() - o1)
}
func (ctxt *Link) domacho() {
@ -641,7 +641,7 @@ func Asmbmacho(ctxt *Link) {
ml.data[1] = 10<<16 | 7<<8 | 0<<0 // SDK 10.7.0
}
a := machowrite(ctxt.Arch)
a := machowrite(ctxt.Arch, ctxt.Out)
if int32(a) > HEADR {
Exitf("HEADR too small: %d > %d", a, HEADR)
}
@ -878,12 +878,12 @@ func Domacholink(ctxt *Link) int64 {
if size > 0 {
linkoff = Rnd(int64(uint64(HEADR)+Segtext.Length), int64(*FlagRound)) + Rnd(int64(Segdata.Filelen), int64(*FlagRound)) + Rnd(int64(Segdwarf.Filelen), int64(*FlagRound))
Cseek(linkoff)
ctxt.Out.SeekSet(linkoff)
Cwrite(s1.P[:s1.Size])
Cwrite(s2.P[:s2.Size])
Cwrite(s3.P[:s3.Size])
Cwrite(s4.P[:s4.Size])
ctxt.Out.Write(s1.P[:s1.Size])
ctxt.Out.Write(s2.P[:s2.Size])
ctxt.Out.Write(s3.P[:s3.Size])
ctxt.Out.Write(s4.P[:s4.Size])
}
return Rnd(int64(size), int64(*FlagRound))
@ -895,7 +895,7 @@ func machorelocsect(ctxt *Link, sect *Section, syms []*Symbol) {
return
}
sect.Reloff = uint64(coutbuf.Offset())
sect.Reloff = uint64(ctxt.Out.Offset())
for i, s := range syms {
if !s.Attr.Reachable() {
continue
@ -926,18 +926,18 @@ func machorelocsect(ctxt *Link, sect *Section, syms []*Symbol) {
if !r.Xsym.Attr.Reachable() {
Errorf(sym, "unreachable reloc %d (%s) target %v", r.Type, RelocName(ctxt.Arch, r.Type), r.Xsym.Name)
}
if !Thearch.Machoreloc1(ctxt.Arch, sym, r, int64(uint64(sym.Value+int64(r.Off))-sect.Vaddr)) {
if !Thearch.Machoreloc1(ctxt.Arch, ctxt.Out, sym, r, int64(uint64(sym.Value+int64(r.Off))-sect.Vaddr)) {
Errorf(sym, "unsupported obj reloc %d (%s)/%d to %s", r.Type, RelocName(ctxt.Arch, r.Type), r.Siz, r.Sym.Name)
}
}
}
sect.Rellen = uint64(coutbuf.Offset()) - sect.Reloff
sect.Rellen = uint64(ctxt.Out.Offset()) - sect.Reloff
}
func Machoemitreloc(ctxt *Link) {
for coutbuf.Offset()&7 != 0 {
Cput(0)
for ctxt.Out.Offset()&7 != 0 {
ctxt.Out.Write8(0)
}
machorelocsect(ctxt, Segtext.Sections[0], ctxt.Textp)

120
src/cmd/link/internal/ld/outbuf.go Normal file
View File

@ -0,0 +1,120 @@
// 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 ld
import (
"bufio"
"cmd/internal/sys"
"encoding/binary"
"os"
)
// OutBuf is a buffered file writer.
//
// It is simlar to the Writer in cmd/internal/bio with a few small differences.
//
// First, it tracks the output architecture and uses it to provide
// endian helpers.
//
// Second, it provides a very cheap offset counter that doesn't require
// any system calls to read the value.
type OutBuf struct {
arch *sys.Arch
off int64
w *bufio.Writer
f *os.File
encbuf [8]byte // temp buffer used by WriteN methods
}
func (out *OutBuf) SeekSet(p int64) {
if p == out.off {
return
}
out.Flush()
if _, err := out.f.Seek(p, 0); err != nil {
Exitf("seeking to %d in %s: %v", p, out.f.Name(), err)
}
out.off = p
}
func (out *OutBuf) Offset() int64 {
return out.off
}
// Write writes the contents of v to the buffer.
//
// As Write is backed by a bufio.Writer, callers do not have
// to explicitly handle the returned error as long as Flush is
// eventually called.
func (out *OutBuf) Write(v []byte) (int, error) {
n, err := out.w.Write(v)
out.off += int64(n)
return n, err
}
func (out *OutBuf) Write8(v uint8) {
if err := out.w.WriteByte(v); err == nil {
out.off++
}
}
func (out *OutBuf) Write16(v uint16) {
out.arch.ByteOrder.PutUint16(out.encbuf[:], v)
out.Write(out.encbuf[:2])
}
func (out *OutBuf) Write32(v uint32) {
out.arch.ByteOrder.PutUint32(out.encbuf[:], v)
out.Write(out.encbuf[:4])
}
func (out *OutBuf) Write32b(v uint32) {
binary.BigEndian.PutUint32(out.encbuf[:], v)
out.Write(out.encbuf[:4])
}
func (out *OutBuf) Write64(v uint64) {
out.arch.ByteOrder.PutUint64(out.encbuf[:], v)
out.Write(out.encbuf[:8])
}
func (out *OutBuf) Write64b(v uint64) {
binary.BigEndian.PutUint64(out.encbuf[:], v)
out.Write(out.encbuf[:8])
}
func (out *OutBuf) WriteString(s string) {
n, _ := out.w.WriteString(s)
out.off += int64(n)
}
// WriteStringN writes the first n bytes of s.
// If n is larger than len(s) then it is padded with zero bytes.
func (out *OutBuf) WriteStringN(s string, n int) {
out.WriteStringPad(s, n, zeros[:])
}
// WriteStringPad writes the first n bytes of s.
// If n is larger than len(s) then it is padded with the bytes in pad (repeated as needed).
func (out *OutBuf) WriteStringPad(s string, n int, pad []byte) {
if len(s) >= n {
out.WriteString(s[:n])
} else {
out.WriteString(s)
n -= len(s)
for n > len(pad) {
out.Write(pad)
n -= len(pad)
}
out.Write(pad[:n])
}
}
func (out *OutBuf) Flush() {
if err := out.w.Flush(); err != nil {
Exitf("flushing %s: %v", out.f.Name(), err)
}
}

217
src/cmd/link/internal/ld/pe.go
View File

@ -276,11 +276,11 @@ func (t *peStringTable) add(str string) int {
}
// write writes string table t into the output file.
func (t *peStringTable) write() {
Lputl(uint32(t.size()))
func (t *peStringTable) write(out *OutBuf) {
out.Write32(uint32(t.size()))
for _, s := range t.strings {
Cwritestring(s)
Cput(0)
out.WriteString(s)
out.Write8(0)
}
}
@ -322,12 +322,12 @@ func (sect *peSection) checkSegment(seg *Segment) {
// pad adds zeros to the section sect. It writes as many bytes
// as necessary to make section sect.SizeOfRawData bytes long.
// It assumes that n bytes are already written to the file.
func (sect *peSection) pad(n uint32) {
strnput("", int(sect.sizeOfRawData-n))
func (sect *peSection) pad(out *OutBuf, n uint32) {
out.WriteStringN("", int(sect.sizeOfRawData-n))
}
// write writes COFF section sect into the output file.
func (sect *peSection) write() error {
func (sect *peSection) write(out *OutBuf) error {
h := pe.SectionHeader32{
VirtualSize: sect.virtualSize,
SizeOfRawData: sect.sizeOfRawData,
@ -340,26 +340,26 @@ func (sect *peSection) write() error {
h.VirtualAddress = sect.virtualAddress
}
copy(h.Name[:], sect.shortName)
return binary.Write(&coutbuf, binary.LittleEndian, h)
return binary.Write(out, binary.LittleEndian, h)
}
// emitRelocations emits the relocation entries for the sect.
// The actual relocations are emitted by relocfn.
// This updates the corresponding PE section table entry
// with the relocation offset and count.
func (sect *peSection) emitRelocations(relocfn func() int) {
sect.pointerToRelocations = uint32(coutbuf.Offset())
func (sect *peSection) emitRelocations(out *OutBuf, relocfn func() int) {
sect.pointerToRelocations = uint32(out.Offset())
// first entry: extended relocs
Lputl(0) // placeholder for number of relocation + 1
Lputl(0)
Wputl(0)
out.Write32(0) // placeholder for number of relocation + 1
out.Write32(0)
out.Write16(0)
n := relocfn() + 1
cpos := coutbuf.Offset()
Cseek(int64(sect.pointerToRelocations))
Lputl(uint32(n))
Cseek(cpos)
cpos := out.Offset()
out.SeekSet(int64(sect.pointerToRelocations))
out.Write32(uint32(n))
out.SeekSet(cpos)
if n > 0x10000 {
n = 0x10000
sect.characteristics |= IMAGE_SCN_LNK_NRELOC_OVFL
@ -459,24 +459,24 @@ func (f *peFile) addInitArray(ctxt *Link) *peSection {
sect := f.addSection(".ctors", size, size)
sect.characteristics = IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ
sect.sizeOfRawData = uint32(size)
Cseek(int64(sect.pointerToRawData))
sect.checkOffset(coutbuf.Offset())
ctxt.Out.SeekSet(int64(sect.pointerToRawData))
sect.checkOffset(ctxt.Out.Offset())
init_entry := ctxt.Syms.Lookup(*flagEntrySymbol, 0)
addr := uint64(init_entry.Value) - init_entry.Sect.Vaddr
switch objabi.GOARCH {
case "386":
Lputl(uint32(addr))
ctxt.Out.Write32(uint32(addr))
case "amd64":
Vputl(addr)
ctxt.Out.Write64(addr)
}
return sect
}
// emitRelocations emits relocation entries for go.o in external linking.
func (f *peFile) emitRelocations(ctxt *Link) {
for coutbuf.Offset()&7 != 0 {
Cput(0)
for ctxt.Out.Offset()&7 != 0 {
ctxt.Out.Write8(0)
}
// relocsect relocates symbols from first in section sect, and returns
@ -487,7 +487,7 @@ func (f *peFile) emitRelocations(ctxt *Link) {
return 0
}
relocs := 0
sect.Reloff = uint64(coutbuf.Offset())
sect.Reloff = uint64(ctxt.Out.Offset())
for i, s := range syms {
if !s.Attr.Reachable() {
continue
@ -517,17 +517,17 @@ func (f *peFile) emitRelocations(ctxt *Link) {
if r.Xsym.Dynid < 0 {
Errorf(sym, "reloc %d to non-coff symbol %s (outer=%s) %d", r.Type, r.Sym.Name, r.Xsym.Name, r.Sym.Type)
}
if !Thearch.PEreloc1(ctxt.Arch, sym, r, int64(uint64(sym.Value+int64(r.Off))-base)) {
if !Thearch.PEreloc1(ctxt.Arch, ctxt.Out, sym, r, int64(uint64(sym.Value+int64(r.Off))-base)) {
Errorf(sym, "unsupported obj reloc %d/%d to %s", r.Type, r.Siz, r.Sym.Name)
}
relocs++
}
}
sect.Rellen = uint64(coutbuf.Offset()) - sect.Reloff
sect.Rellen = uint64(ctxt.Out.Offset()) - sect.Reloff
return relocs
}
f.textSect.emitRelocations(func() int {
f.textSect.emitRelocations(ctxt.Out, func() int {
n := relocsect(Segtext.Sections[0], ctxt.Textp, Segtext.Vaddr)
for _, sect := range Segtext.Sections[1:] {
n += relocsect(sect, datap, Segtext.Vaddr)
@ -535,7 +535,7 @@ func (f *peFile) emitRelocations(ctxt *Link) {
return n
})
f.dataSect.emitRelocations(func() int {
f.dataSect.emitRelocations(ctxt.Out, func() int {
var n int
for _, sect := range Segdata.Sections {
n += relocsect(sect, datap, Segdata.Vaddr)
@ -547,7 +547,7 @@ dwarfLoop:
for _, sect := range Segdwarf.Sections {
for _, pesect := range f.sections {
if sect.Name == pesect.name {
pesect.emitRelocations(func() int {
pesect.emitRelocations(ctxt.Out, func() int {
return relocsect(sect, dwarfp, sect.Vaddr)
})
continue dwarfLoop
@ -556,17 +556,17 @@ dwarfLoop:
Errorf(nil, "emitRelocations: could not find %q section", sect.Name)
}
f.ctorsSect.emitRelocations(func() int {
f.ctorsSect.emitRelocations(ctxt.Out, func() int {
dottext := ctxt.Syms.Lookup(".text", 0)
Lputl(0)
Lputl(uint32(dottext.Dynid))
ctxt.Out.Write32(0)
ctxt.Out.Write32(uint32(dottext.Dynid))
switch objabi.GOARCH {
default:
Errorf(dottext, "unknown architecture for PE: %q\n", objabi.GOARCH)
case "386":
Wputl(IMAGE_REL_I386_DIR32)
ctxt.Out.Write16(IMAGE_REL_I386_DIR32)
case "amd64":
Wputl(IMAGE_REL_AMD64_ADDR64)
ctxt.Out.Write16(IMAGE_REL_AMD64_ADDR64)
}
return 1
})
@ -574,18 +574,18 @@ dwarfLoop:
// writeSymbol appends symbol s to file f symbol table.
// It also sets s.Dynid to written symbol number.
func (f *peFile) writeSymbol(s *Symbol, value int64, sectidx int, typ uint16, class uint8) {
func (f *peFile) writeSymbol(out *OutBuf, s *Symbol, value int64, sectidx int, typ uint16, class uint8) {
if len(s.Name) > 8 {
Lputl(0)
Lputl(uint32(f.stringTable.add(s.Name)))
out.Write32(0)
out.Write32(uint32(f.stringTable.add(s.Name)))
} else {
strnput(s.Name, 8)
out.WriteStringN(s.Name, 8)
}
Lputl(uint32(value))
Wputl(uint16(sectidx))
Wputl(typ)
Cput(class)
Cput(0) // no aux entries
out.Write32(uint32(value))
out.Write16(uint16(sectidx))
out.Write16(typ)
out.Write8(class)
out.Write8(0) // no aux entries
s.Dynid = int32(f.symbolCount)
@ -662,7 +662,7 @@ func (f *peFile) writeSymbols(ctxt *Link) {
if s.Version != 0 || (s.Type&SHIDDEN != 0) || s.Attr.Local() {
class = IMAGE_SYM_CLASS_STATIC
}
f.writeSymbol(s, value, sect, typ, uint8(class))
f.writeSymbol(ctxt.Out, s, value, sect, typ, uint8(class))
}
if Linkmode == LinkExternal {
@ -670,7 +670,7 @@ func (f *peFile) writeSymbols(ctxt *Link) {
// .ctors and .debug_* section relocations refer to it.
for _, pesect := range f.sections {
sym := ctxt.Syms.Lookup(pesect.name, 0)
f.writeSymbol(sym, 0, pesect.index, IMAGE_SYM_TYPE_NULL, IMAGE_SYM_CLASS_STATIC)
f.writeSymbol(ctxt.Out, sym, 0, pesect.index, IMAGE_SYM_TYPE_NULL, IMAGE_SYM_CLASS_STATIC)
}
}
@ -679,7 +679,7 @@ func (f *peFile) writeSymbols(ctxt *Link) {
// writeSymbolTableAndStringTable writes out symbol and string tables for peFile f.
func (f *peFile) writeSymbolTableAndStringTable(ctxt *Link) {
f.symtabOffset = coutbuf.Offset()
f.symtabOffset = ctxt.Out.Offset()
// write COFF symbol table
if !*FlagS || Linkmode == LinkExternal {
@ -698,14 +698,14 @@ func (f *peFile) writeSymbolTableAndStringTable(ctxt *Link) {
}
// write COFF string table
f.stringTable.write()
f.stringTable.write(ctxt.Out)
if Linkmode != LinkExternal {
h.pad(uint32(size))
h.pad(ctxt.Out, uint32(size))
}
}
// writeFileHeader writes COFF file header for peFile f.
func (f *peFile) writeFileHeader(arch *sys.Arch) {
func (f *peFile) writeFileHeader(arch *sys.Arch, out *OutBuf) {
var fh pe.FileHeader
switch arch.Family {
@ -741,7 +741,7 @@ func (f *peFile) writeFileHeader(arch *sys.Arch) {
fh.PointerToSymbolTable = uint32(f.symtabOffset)
fh.NumberOfSymbols = uint32(f.symbolCount)
binary.Write(&coutbuf, binary.LittleEndian, &fh)
binary.Write(out, binary.LittleEndian, &fh)
}
// writeOptionalHeader writes COFF optional header for peFile f.
@ -854,9 +854,9 @@ func (f *peFile) writeOptionalHeader(ctxt *Link) {
}
if pe64 != 0 {
binary.Write(&coutbuf, binary.LittleEndian, &oh64)
binary.Write(ctxt.Out, binary.LittleEndian, &oh64)
} else {
binary.Write(&coutbuf, binary.LittleEndian, &oh)
binary.Write(ctxt.Out, binary.LittleEndian, &oh)
}
}
@ -917,27 +917,27 @@ func Peinit(ctxt *Link) {
}
func pewrite(ctxt *Link) {
Cseek(0)
ctxt.Out.SeekSet(0)
if Linkmode != LinkExternal {
Cwrite(dosstub)
strnput("PE", 4)
ctxt.Out.Write(dosstub)
ctxt.Out.WriteStringN("PE", 4)
}
pefile.writeFileHeader(ctxt.Arch)
pefile.writeFileHeader(ctxt.Arch, ctxt.Out)
pefile.writeOptionalHeader(ctxt)
for _, sect := range pefile.sections {
sect.write()
sect.write(ctxt.Out)
}
}
func strput(s string) {
coutbuf.WriteString(s)
Cput(0)
func strput(out *OutBuf, s string) {
out.WriteString(s)
out.Write8(0)
// string must be padded to even size
if (len(s)+1)%2 != 0 {
Cput(0)
out.Write8(0)
}
}
@ -1039,7 +1039,7 @@ func peimporteddlls() []string {
}
func addimports(ctxt *Link, datsect *peSection) {
startoff := coutbuf.Offset()
startoff := ctxt.Out.Offset()
dynamic := ctxt.Syms.Lookup(".windynamic", 0)
// skip import descriptor table (will write it later)
@ -1048,90 +1048,91 @@ func addimports(ctxt *Link, datsect *peSection) {
for d := dr; d != nil; d = d.next {
n++
}
Cseek(startoff + int64(binary.Size(&IMAGE_IMPORT_DESCRIPTOR{}))*int64(n+1))
ctxt.Out.SeekSet(startoff + int64(binary.Size(&IMAGE_IMPORT_DESCRIPTOR{}))*int64(n+1))
// write dll names
for d := dr; d != nil; d = d.next {
d.nameoff = uint64(coutbuf.Offset()) - uint64(startoff)
strput(d.name)
d.nameoff = uint64(ctxt.Out.Offset()) - uint64(startoff)
strput(ctxt.Out, d.name)
}
// write function names
var m *Imp
for d := dr; d != nil; d = d.next {
for m = d.ms; m != nil; m = m.next {
m.off = uint64(pefile.nextSectOffset) + uint64(coutbuf.Offset()) - uint64(startoff)
Wputl(0) // hint
strput(m.s.Extname)
m.off = uint64(pefile.nextSectOffset) + uint64(ctxt.Out.Offset()) - uint64(startoff)
ctxt.Out.Write16(0) // hint
strput(ctxt.Out, m.s.Extname)
}
}
// write OriginalFirstThunks
oftbase := uint64(coutbuf.Offset()) - uint64(startoff)
oftbase := uint64(ctxt.Out.Offset()) - uint64(startoff)
n = uint64(coutbuf.Offset())
n = uint64(ctxt.Out.Offset())
for d := dr; d != nil; d = d.next {
d.thunkoff = uint64(coutbuf.Offset()) - n
d.thunkoff = uint64(ctxt.Out.Offset()) - n
for m = d.ms; m != nil; m = m.next {
if pe64 != 0 {
Vputl(m.off)
ctxt.Out.Write64(m.off)
} else {
Lputl(uint32(m.off))
ctxt.Out.Write32(uint32(m.off))
}
}
if pe64 != 0 {
Vputl(0)
ctxt.Out.Write64(0)
} else {
Lputl(0)
ctxt.Out.Write32(0)
}
}
// add pe section and pad it at the end
n = uint64(coutbuf.Offset()) - uint64(startoff)
n = uint64(ctxt.Out.Offset()) - uint64(startoff)
isect := pefile.addSection(".idata", int(n), int(n))
isect.characteristics = IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ | IMAGE_SCN_MEM_WRITE
isect.checkOffset(startoff)
isect.pad(uint32(n))
endoff := coutbuf.Offset()
isect.pad(ctxt.Out, uint32(n))
endoff := ctxt.Out.Offset()
// write FirstThunks (allocated in .data section)
ftbase := uint64(dynamic.Value) - uint64(datsect.virtualAddress) - PEBASE
Cseek(int64(uint64(datsect.pointerToRawData) + ftbase))
ctxt.Out.SeekSet(int64(uint64(datsect.pointerToRawData) + ftbase))
for d := dr; d != nil; d = d.next {
for m = d.ms; m != nil; m = m.next {
if pe64 != 0 {
Vputl(m.off)
ctxt.Out.Write64(m.off)
} else {
Lputl(uint32(m.off))
ctxt.Out.Write32(uint32(m.off))
}
}
if pe64 != 0 {
Vputl(0)
ctxt.Out.Write64(0)
} else {
Lputl(0)
ctxt.Out.Write32(0)
}
}
// finally write import descriptor table
Cseek(startoff)
out := ctxt.Out
out.SeekSet(startoff)
for d := dr; d != nil; d = d.next {
Lputl(uint32(uint64(isect.virtualAddress) + oftbase + d.thunkoff))
Lputl(0)
Lputl(0)
Lputl(uint32(uint64(isect.virtualAddress) + d.nameoff))
Lputl(uint32(uint64(datsect.virtualAddress) + ftbase + d.thunkoff))
out.Write32(uint32(uint64(isect.virtualAddress) + oftbase + d.thunkoff))
out.Write32(0)
out.Write32(0)
out.Write32(uint32(uint64(isect.virtualAddress) + d.nameoff))
out.Write32(uint32(uint64(datsect.virtualAddress) + ftbase + d.thunkoff))
}
Lputl(0) //end
Lputl(0)
Lputl(0)
Lputl(0)
Lputl(0)
out.Write32(0) //end
out.Write32(0)
out.Write32(0)
out.Write32(0)
out.Write32(0)
// update data directory
pefile.dataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress = isect.virtualAddress
@ -1139,7 +1140,7 @@ func addimports(ctxt *Link, datsect *peSection) {
pefile.dataDirectory[IMAGE_DIRECTORY_ENTRY_IAT].VirtualAddress = uint32(dynamic.Value - PEBASE)
pefile.dataDirectory[IMAGE_DIRECTORY_ENTRY_IAT].Size = uint32(dynamic.Size)
Cseek(endoff)
out.SeekSet(endoff)
}
type byExtname []*Symbol
@ -1180,7 +1181,7 @@ func addexports(ctxt *Link) {
sect := pefile.addSection(".edata", size, size)
sect.characteristics = IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ
sect.checkOffset(coutbuf.Offset())
sect.checkOffset(ctxt.Out.Offset())
va := int(sect.virtualAddress)
pefile.dataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress = uint32(va)
pefile.dataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size = sect.virtualSize
@ -1200,34 +1201,36 @@ func addexports(ctxt *Link) {
e.AddressOfNames = uint32(vaName)
e.AddressOfNameOrdinals = uint32(vaNa)
out := ctxt.Out
// put IMAGE_EXPORT_DIRECTORY
binary.Write(&coutbuf, binary.LittleEndian, &e)
binary.Write(out, binary.LittleEndian, &e)
// put EXPORT Address Table
for i := 0; i < nexport; i++ {
Lputl(uint32(dexport[i].Value - PEBASE))
out.Write32(uint32(dexport[i].Value - PEBASE))
}
// put EXPORT Name Pointer Table
v := int(e.Name + uint32(len(*flagOutfile)) + 1)
for i := 0; i < nexport; i++ {
Lputl(uint32(v))
out.Write32(uint32(v))
v += len(dexport[i].Extname) + 1
}
// put EXPORT Ordinal Table
for i := 0; i < nexport; i++ {
Wputl(uint16(i))
out.Write16(uint16(i))
}
// put Names
strnput(*flagOutfile, len(*flagOutfile)+1)
out.WriteStringN(*flagOutfile, len(*flagOutfile)+1)
for i := 0; i < nexport; i++ {
strnput(dexport[i].Extname, len(dexport[i].Extname)+1)
out.WriteStringN(dexport[i].Extname, len(dexport[i].Extname)+1)
}
sect.pad(uint32(size))
sect.pad(out, uint32(size))
}
func (ctxt *Link) dope() {
@ -1256,7 +1259,7 @@ func addpersrc(ctxt *Link) {
h := pefile.addSection(".rsrc", int(rsrcsym.Size), int(rsrcsym.Size))
h.characteristics = IMAGE_SCN_MEM_READ | IMAGE_SCN_MEM_WRITE | IMAGE_SCN_CNT_INITIALIZED_DATA
h.checkOffset(coutbuf.Offset())
h.checkOffset(ctxt.Out.Offset())
// relocation
var p []byte
@ -1275,8 +1278,8 @@ func addpersrc(ctxt *Link) {
p[3] = byte(val >> 24)
}
Cwrite(rsrcsym.P)
h.pad(uint32(rsrcsym.Size))
ctxt.Out.Write(rsrcsym.P)
h.pad(ctxt.Out, uint32(rsrcsym.Size))
// update data directory
pefile.dataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = h.virtualAddress
@ -1325,7 +1328,7 @@ func Asmbpe(ctxt *Link) {
pefile.ctorsSect = pefile.addInitArray(ctxt)
}
Cseek(int64(pefile.nextFileOffset))
ctxt.Out.SeekSet(int64(pefile.nextFileOffset))
if Linkmode != LinkExternal {
addimports(ctxt, d)
addexports(ctxt)

8
src/cmd/link/internal/ld/sym.go
View File

@ -47,6 +47,7 @@ func linknew(arch *sys.Arch) *Link {
},
Allsym: make([]*Symbol, 0, 100000),
},
Out: &OutBuf{arch: arch},
Arch: arch,
LibraryByPkg: make(map[string]*Library),
}
@ -55,6 +56,13 @@ func linknew(arch *sys.Arch) *Link {
log.Fatalf("invalid objabi.GOARCH %s (want %s)", objabi.GOARCH, arch.Name)
}
AtExit(func() {
if nerrors > 0 && ctxt.Out.f != nil {
ctxt.Out.f.Close()
mayberemoveoutfile()
}
})
return ctxt
}

82
src/cmd/link/internal/ld/symtab.go
View File

@ -52,22 +52,22 @@ func putelfstr(s string) int {
return off
}
func putelfsyment(off int, addr int64, size int64, info int, shndx int, other int) {
func putelfsyment(out *OutBuf, off int, addr int64, size int64, info int, shndx int, other int) {
if elf64 {
Thearch.Lput(uint32(off))
Cput(uint8(info))
Cput(uint8(other))
Thearch.Wput(uint16(shndx))
Thearch.Vput(uint64(addr))
Thearch.Vput(uint64(size))
out.Write32(uint32(off))
out.Write8(uint8(info))
out.Write8(uint8(other))
out.Write16(uint16(shndx))
out.Write64(uint64(addr))
out.Write64(uint64(size))
Symsize += ELF64SYMSIZE
} else {
Thearch.Lput(uint32(off))
Thearch.Lput(uint32(addr))
Thearch.Lput(uint32(size))
Cput(uint8(info))
Cput(uint8(other))
Thearch.Wput(uint16(shndx))
out.Write32(uint32(off))
out.Write32(uint32(addr))
out.Write32(uint32(size))
out.Write8(uint8(info))
out.Write8(uint8(other))
out.Write16(uint16(shndx))
Symsize += ELF32SYMSIZE
}
}
@ -174,7 +174,7 @@ func putelfsym(ctxt *Link, x *Symbol, s string, t SymbolType, addr int64, go_ *S
// (*Symbol).ElfsymForReloc). This is approximately equivalent to the
// ELF linker -Bsymbolic-functions option, but that is buggy on
// several platforms.
putelfsyment(putelfstr("local."+s), addr, size, STB_LOCAL<<4|typ&0xf, elfshnum, other)
putelfsyment(ctxt.Out, putelfstr("local."+s), addr, size, STB_LOCAL<<4|typ&0xf, elfshnum, other)
x.LocalElfsym = int32(numelfsym)
numelfsym++
return
@ -182,20 +182,20 @@ func putelfsym(ctxt *Link, x *Symbol, s string, t SymbolType, addr int64, go_ *S
return
}
putelfsyment(putelfstr(s), addr, size, bind<<4|typ&0xf, elfshnum, other)
putelfsyment(ctxt.Out, putelfstr(s), addr, size, bind<<4|typ&0xf, elfshnum, other)
x.Elfsym = int32(numelfsym)
numelfsym++
}
func putelfsectionsym(s *Symbol, shndx int) {
putelfsyment(0, 0, 0, STB_LOCAL<<4|STT_SECTION, shndx, 0)
func putelfsectionsym(out *OutBuf, s *Symbol, shndx int) {
putelfsyment(out, 0, 0, 0, STB_LOCAL<<4|STT_SECTION, shndx, 0)
s.Elfsym = int32(numelfsym)
numelfsym++
}
func Asmelfsym(ctxt *Link) {
// the first symbol entry is reserved
putelfsyment(0, 0, 0, STB_LOCAL<<4|STT_NOTYPE, 0, 0)
putelfsyment(ctxt.Out, 0, 0, 0, STB_LOCAL<<4|STT_NOTYPE, 0, 0)
dwarfaddelfsectionsyms(ctxt)
@ -203,7 +203,7 @@ func Asmelfsym(ctxt *Link) {
// Avoid having the working directory inserted into the symbol table.
// It is added with a name to avoid problems with external linking
// encountered on some versions of Solaris. See issue #14957.
putelfsyment(putelfstr("go.go"), 0, 0, STB_LOCAL<<4|STT_FILE, SHN_ABS, 0)
putelfsyment(ctxt.Out, putelfstr("go.go"), 0, 0, STB_LOCAL<<4|STT_FILE, SHN_ABS, 0)
numelfsym++
elfbind = STB_LOCAL
@ -226,15 +226,15 @@ func putplan9sym(ctxt *Link, x *Symbol, s string, typ SymbolType, addr int64, go
case AutoSym, ParamSym, FrameSym:
l := 4
if Headtype == objabi.Hplan9 && ctxt.Arch.Family == sys.AMD64 && !Flag8 {
Lputb(uint32(addr >> 32))
ctxt.Out.Write32b(uint32(addr >> 32))
l = 8
}
Lputb(uint32(addr))
Cput(uint8(t + 0x80)) /* 0x80 is variable length */
ctxt.Out.Write32b(uint32(addr))
ctxt.Out.Write8(uint8(t + 0x80)) /* 0x80 is variable length */
Cwritestring(s)
Cput(0)
ctxt.Out.WriteString(s)
ctxt.Out.Write8(0)
Symsize += int32(l) + 1 + int32(len(s)) + 1
@ -249,40 +249,6 @@ func Asmplan9sym(ctxt *Link) {
var symt *Symbol
var encbuf [10]byte
func Wputb(w uint16) { Cwrite(Append16b(encbuf[:0], w)) }
func Lputb(l uint32) { Cwrite(Append32b(encbuf[:0], l)) }
func Vputb(v uint64) { Cwrite(Append64b(encbuf[:0], v)) }
func Wputl(w uint16) { Cwrite(Append16l(encbuf[:0], w)) }
func Lputl(l uint32) { Cwrite(Append32l(encbuf[:0], l)) }
func Vputl(v uint64) { Cwrite(Append64l(encbuf[:0], v)) }
func Append16b(b []byte, v uint16) []byte {
return append(b, uint8(v>>8), uint8(v))
}
func Append16l(b []byte, v uint16) []byte {
return append(b, uint8(v), uint8(v>>8))
}
func Append32b(b []byte, v uint32) []byte {
return append(b, uint8(v>>24), uint8(v>>16), uint8(v>>8), uint8(v))
}
func Append32l(b []byte, v uint32) []byte {
return append(b, uint8(v), uint8(v>>8), uint8(v>>16), uint8(v>>24))
}
func Append64b(b []byte, v uint64) []byte {
return append(b, uint8(v>>56), uint8(v>>48), uint8(v>>40), uint8(v>>32),
uint8(v>>24), uint8(v>>16), uint8(v>>8), uint8(v))
}
func Append64l(b []byte, v uint64) []byte {
return append(b, uint8(v), uint8(v>>8), uint8(v>>16), uint8(v>>24),
uint8(v>>32), uint8(v>>40), uint8(v>>48), uint8(v>>56))
}
type byPkg []*Library
func (libs byPkg) Len() int {

5
src/cmd/link/internal/ld/util.go
View File

@ -92,10 +92,7 @@ func Exit(code int) {
// Exitf logs an error message then calls Exit(2).
func Exitf(format string, a ...interface{}) {
fmt.Fprintf(os.Stderr, os.Args[0]+": "+format+"\n", a...)
if coutbuf.f != nil {
coutbuf.f.Close()
mayberemoveoutfile()
}
nerrors++
Exit(2)
}

34
src/cmd/link/internal/mips/asm.go
View File

@ -48,7 +48,7 @@ func adddynrel(ctxt *ld.Link, s *ld.Symbol, r *ld.Reloc) bool {
}
func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
ld.Thearch.Lput(uint32(sectoff))
ctxt.Out.Write32(uint32(sectoff))
elfsym := r.Xsym.ElfsymForReloc()
switch r.Type {
@ -58,15 +58,15 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
if r.Siz != 4 {
return false
}
ld.Thearch.Lput(ld.R_MIPS_32 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_MIPS_32 | uint32(elfsym)<<8)
case objabi.R_ADDRMIPS:
ld.Thearch.Lput(ld.R_MIPS_LO16 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_MIPS_LO16 | uint32(elfsym)<<8)
case objabi.R_ADDRMIPSU:
ld.Thearch.Lput(ld.R_MIPS_HI16 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_MIPS_HI16 | uint32(elfsym)<<8)
case objabi.R_ADDRMIPSTLS:
ld.Thearch.Lput(ld.R_MIPS_TLS_TPREL_LO16 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_MIPS_TLS_TPREL_LO16 | uint32(elfsym)<<8)
case objabi.R_CALLMIPS, objabi.R_JMPMIPS:
ld.Thearch.Lput(ld.R_MIPS_26 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_MIPS_26 | uint32(elfsym)<<8)
}
return true
@ -76,7 +76,7 @@ func elfsetupplt(ctxt *ld.Link) {
return
}
func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
func machoreloc1(arch *sys.Arch, out *ld.OutBuf, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
return false
}
@ -175,10 +175,10 @@ func asmb(ctxt *ld.Link) {
}
sect := ld.Segtext.Sections[0]
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Codeblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
for _, sect = range ld.Segtext.Sections[1:] {
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Datblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
}
@ -187,7 +187,7 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f rodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrodata.Vaddr), int64(ld.Segrodata.Filelen))
}
@ -195,10 +195,10 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f datblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segdata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segdata.Vaddr), int64(ld.Segdata.Filelen))
ld.Cseek(int64(ld.Segdwarf.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdwarf.Fileoff))
ld.Dwarfblk(ctxt, int64(ld.Segdwarf.Vaddr), int64(ld.Segdwarf.Filelen))
/* output symbol table */
@ -216,13 +216,13 @@ func asmb(ctxt *ld.Link) {
symo = uint32(ld.Segdwarf.Fileoff + ld.Segdwarf.Filelen)
symo = uint32(ld.Rnd(int64(symo), int64(*ld.FlagRound)))
ld.Cseek(int64(symo))
ctxt.Out.SeekSet(int64(symo))
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f elfsym\n", ld.Cputime())
}
ld.Asmelfsym(ctxt)
ld.Cflush()
ld.Cwrite(ld.Elfstrdat)
ctxt.Out.Flush()
ctxt.Out.Write(ld.Elfstrdat)
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f dwarf\n", ld.Cputime())
@ -237,7 +237,7 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f header\n", ld.Cputime())
}
ld.Cseek(0)
ctxt.Out.SeekSet(0)
switch ld.Headtype {
default:
ld.Errorf(nil, "unsupported operating system")
@ -245,7 +245,7 @@ func asmb(ctxt *ld.Link) {
ld.Asmbelf(ctxt, int64(symo))
}
ld.Cflush()
ctxt.Out.Flush()
if *ld.FlagC {
fmt.Printf("textsize=%d\n", ld.Segtext.Filelen)
fmt.Printf("datsize=%d\n", ld.Segdata.Filelen)

16
src/cmd/link/internal/mips/obj.go
View File

@ -69,22 +69,6 @@ func Init() (*sys.Arch, ld.Arch) {
Solarisdynld: "XXX",
}
if arch == sys.ArchMIPSLE {
theArch.Lput = ld.Lputl
theArch.Wput = ld.Wputl
theArch.Vput = ld.Vputl
theArch.Append16 = ld.Append16l
theArch.Append32 = ld.Append32l
theArch.Append64 = ld.Append64l
} else {
theArch.Lput = ld.Lputb
theArch.Wput = ld.Wputb
theArch.Vput = ld.Vputb
theArch.Append16 = ld.Append16b
theArch.Append32 = ld.Append32b
theArch.Append64 = ld.Append64b
}
return arch, theArch
}

70
src/cmd/link/internal/mips64/asm.go
View File

@ -55,36 +55,36 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
// type uint8
// addend int64
ld.Thearch.Vput(uint64(sectoff))
ctxt.Out.Write64(uint64(sectoff))
elfsym := r.Xsym.ElfsymForReloc()
ld.Thearch.Lput(uint32(elfsym))
ld.Cput(0)
ld.Cput(0)
ld.Cput(0)
ctxt.Out.Write32(uint32(elfsym))
ctxt.Out.Write8(0)
ctxt.Out.Write8(0)
ctxt.Out.Write8(0)
switch r.Type {
default:
return false
case objabi.R_ADDR:
switch r.Siz {
case 4:
ld.Cput(ld.R_MIPS_32)
ctxt.Out.Write8(ld.R_MIPS_32)
case 8:
ld.Cput(ld.R_MIPS_64)
ctxt.Out.Write8(ld.R_MIPS_64)
default:
return false
}
case objabi.R_ADDRMIPS:
ld.Cput(ld.R_MIPS_LO16)
ctxt.Out.Write8(ld.R_MIPS_LO16)
case objabi.R_ADDRMIPSU:
ld.Cput(ld.R_MIPS_HI16)
ctxt.Out.Write8(ld.R_MIPS_HI16)
case objabi.R_ADDRMIPSTLS:
ld.Cput(ld.R_MIPS_TLS_TPREL_LO16)
ctxt.Out.Write8(ld.R_MIPS_TLS_TPREL_LO16)
case objabi.R_CALLMIPS,
objabi.R_JMPMIPS:
ld.Cput(ld.R_MIPS_26)
ctxt.Out.Write8(ld.R_MIPS_26)
}
ld.Thearch.Vput(uint64(r.Xadd))
ctxt.Out.Write64(uint64(r.Xadd))
return true
}
@ -93,7 +93,7 @@ func elfsetupplt(ctxt *ld.Link) {
return
}
func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
func machoreloc1(arch *sys.Arch, out *ld.OutBuf, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
return false
}
@ -182,10 +182,10 @@ func asmb(ctxt *ld.Link) {
}
sect := ld.Segtext.Sections[0]
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Codeblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
for _, sect = range ld.Segtext.Sections[1:] {
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Datblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
}
@ -193,14 +193,14 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f rodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrodata.Vaddr), int64(ld.Segrodata.Filelen))
}
if ld.Segrelrodata.Filelen > 0 {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f rodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrelrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrelrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrelrodata.Vaddr), int64(ld.Segrelrodata.Filelen))
}
@ -208,10 +208,10 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f datblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segdata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segdata.Vaddr), int64(ld.Segdata.Filelen))
ld.Cseek(int64(ld.Segdwarf.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdwarf.Fileoff))
ld.Dwarfblk(ctxt, int64(ld.Segdwarf.Vaddr), int64(ld.Segdwarf.Filelen))
/* output symbol table */
@ -235,7 +235,7 @@ func asmb(ctxt *ld.Link) {
symo = uint32(ld.Segdata.Fileoff + ld.Segdata.Filelen)
}
ld.Cseek(int64(symo))
ctxt.Out.SeekSet(int64(symo))
switch ld.Headtype {
default:
if ld.Iself {
@ -243,8 +243,8 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f elfsym\n", ld.Cputime())
}
ld.Asmelfsym(ctxt)
ld.Cflush()
ld.Cwrite(ld.Elfstrdat)
ctxt.Out.Flush()
ctxt.Out.Write(ld.Elfstrdat)
if ld.Linkmode == ld.LinkExternal {
ld.Elfemitreloc(ctxt)
@ -253,13 +253,13 @@ func asmb(ctxt *ld.Link) {
case objabi.Hplan9:
ld.Asmplan9sym(ctxt)
ld.Cflush()
ctxt.Out.Flush()
sym := ctxt.Syms.Lookup("pclntab", 0)
if sym != nil {
ld.Lcsize = int32(len(sym.P))
ld.Cwrite(sym.P)
ld.Cflush()
ctxt.Out.Write(sym.P)
ctxt.Out.Flush()
}
}
}
@ -267,7 +267,7 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f header\n", ld.Cputime())
}
ld.Cseek(0)
ctxt.Out.SeekSet(0)
switch ld.Headtype {
default:
case objabi.Hplan9: /* plan 9 */
@ -275,14 +275,14 @@ func asmb(ctxt *ld.Link) {
if ctxt.Arch == sys.ArchMIPS64LE {
magic = uint32(4*26*26 + 7)
}
ld.Thearch.Lput(magic) /* magic */
ld.Thearch.Lput(uint32(ld.Segtext.Filelen)) /* sizes */
ld.Thearch.Lput(uint32(ld.Segdata.Filelen))
ld.Thearch.Lput(uint32(ld.Segdata.Length - ld.Segdata.Filelen))
ld.Thearch.Lput(uint32(ld.Symsize)) /* nsyms */
ld.Thearch.Lput(uint32(ld.Entryvalue(ctxt))) /* va of entry */
ld.Thearch.Lput(0)
ld.Thearch.Lput(uint32(ld.Lcsize))
ctxt.Out.Write32(magic) /* magic */
ctxt.Out.Write32(uint32(ld.Segtext.Filelen)) /* sizes */
ctxt.Out.Write32(uint32(ld.Segdata.Filelen))
ctxt.Out.Write32(uint32(ld.Segdata.Length - ld.Segdata.Filelen))
ctxt.Out.Write32(uint32(ld.Symsize)) /* nsyms */
ctxt.Out.Write32(uint32(ld.Entryvalue(ctxt))) /* va of entry */
ctxt.Out.Write32(0)
ctxt.Out.Write32(uint32(ld.Lcsize))
case objabi.Hlinux,
objabi.Hfreebsd,
@ -292,7 +292,7 @@ func asmb(ctxt *ld.Link) {
ld.Asmbelf(ctxt, int64(symo))
}
ld.Cflush()
ctxt.Out.Flush()
if *ld.FlagC {
fmt.Printf("textsize=%d\n", ld.Segtext.Filelen)
fmt.Printf("datsize=%d\n", ld.Segdata.Filelen)

15
src/cmd/link/internal/mips64/obj.go
View File

@ -66,21 +66,6 @@ func Init() (*sys.Arch, ld.Arch) {
Dragonflydynld: "XXX",
Solarisdynld: "XXX",
}
if arch == sys.ArchMIPS64LE {
theArch.Lput = ld.Lputl
theArch.Wput = ld.Wputl
theArch.Vput = ld.Vputl
theArch.Append16 = ld.Append16l
theArch.Append32 = ld.Append32l
theArch.Append64 = ld.Append64l
} else {
theArch.Lput = ld.Lputb
theArch.Wput = ld.Wputb
theArch.Vput = ld.Vputb
theArch.Append16 = ld.Append16b
theArch.Append32 = ld.Append32b
theArch.Append64 = ld.Append64b
}
return arch, theArch
}

114
src/cmd/link/internal/ppc64/asm.go
View File

@ -370,7 +370,7 @@ func adddynrel(ctxt *ld.Link, s *ld.Symbol, r *ld.Reloc) bool {
}
func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
ld.Thearch.Vput(uint64(sectoff))
ctxt.Out.Write64(uint64(sectoff))
elfsym := r.Xsym.ElfsymForReloc()
switch r.Type {
@ -379,60 +379,60 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
case objabi.R_ADDR:
switch r.Siz {
case 4:
ld.Thearch.Vput(ld.R_PPC64_ADDR32 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_ADDR32 | uint64(elfsym)<<32)
case 8:
ld.Thearch.Vput(ld.R_PPC64_ADDR64 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_ADDR64 | uint64(elfsym)<<32)
default:
return false
}
case objabi.R_POWER_TLS:
ld.Thearch.Vput(ld.R_PPC64_TLS | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_TLS | uint64(elfsym)<<32)
case objabi.R_POWER_TLS_LE:
ld.Thearch.Vput(ld.R_PPC64_TPREL16 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_TPREL16 | uint64(elfsym)<<32)
case objabi.R_POWER_TLS_IE:
ld.Thearch.Vput(ld.R_PPC64_GOT_TPREL16_HA | uint64(elfsym)<<32)
ld.Thearch.Vput(uint64(r.Xadd))
ld.Thearch.Vput(uint64(sectoff + 4))
ld.Thearch.Vput(ld.R_PPC64_GOT_TPREL16_LO_DS | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_GOT_TPREL16_HA | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(r.Xadd))
ctxt.Out.Write64(uint64(sectoff + 4))
ctxt.Out.Write64(ld.R_PPC64_GOT_TPREL16_LO_DS | uint64(elfsym)<<32)
case objabi.R_ADDRPOWER:
ld.Thearch.Vput(ld.R_PPC64_ADDR16_HA | uint64(elfsym)<<32)
ld.Thearch.Vput(uint64(r.Xadd))
ld.Thearch.Vput(uint64(sectoff + 4))
ld.Thearch.Vput(ld.R_PPC64_ADDR16_LO | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_ADDR16_HA | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(r.Xadd))
ctxt.Out.Write64(uint64(sectoff + 4))
ctxt.Out.Write64(ld.R_PPC64_ADDR16_LO | uint64(elfsym)<<32)
case objabi.R_ADDRPOWER_DS:
ld.Thearch.Vput(ld.R_PPC64_ADDR16_HA | uint64(elfsym)<<32)
ld.Thearch.Vput(uint64(r.Xadd))
ld.Thearch.Vput(uint64(sectoff + 4))
ld.Thearch.Vput(ld.R_PPC64_ADDR16_LO_DS | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_ADDR16_HA | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(r.Xadd))
ctxt.Out.Write64(uint64(sectoff + 4))
ctxt.Out.Write64(ld.R_PPC64_ADDR16_LO_DS | uint64(elfsym)<<32)
case objabi.R_ADDRPOWER_GOT:
ld.Thearch.Vput(ld.R_PPC64_GOT16_HA | uint64(elfsym)<<32)
ld.Thearch.Vput(uint64(r.Xadd))
ld.Thearch.Vput(uint64(sectoff + 4))
ld.Thearch.Vput(ld.R_PPC64_GOT16_LO_DS | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_GOT16_HA | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(r.Xadd))
ctxt.Out.Write64(uint64(sectoff + 4))
ctxt.Out.Write64(ld.R_PPC64_GOT16_LO_DS | uint64(elfsym)<<32)
case objabi.R_ADDRPOWER_PCREL:
ld.Thearch.Vput(ld.R_PPC64_REL16_HA | uint64(elfsym)<<32)
ld.Thearch.Vput(uint64(r.Xadd))
ld.Thearch.Vput(uint64(sectoff + 4))
ld.Thearch.Vput(ld.R_PPC64_REL16_LO | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_REL16_HA | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(r.Xadd))
ctxt.Out.Write64(uint64(sectoff + 4))
ctxt.Out.Write64(ld.R_PPC64_REL16_LO | uint64(elfsym)<<32)
r.Xadd += 4
case objabi.R_ADDRPOWER_TOCREL:
ld.Thearch.Vput(ld.R_PPC64_TOC16_HA | uint64(elfsym)<<32)
ld.Thearch.Vput(uint64(r.Xadd))
ld.Thearch.Vput(uint64(sectoff + 4))
ld.Thearch.Vput(ld.R_PPC64_TOC16_LO | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_TOC16_HA | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(r.Xadd))
ctxt.Out.Write64(uint64(sectoff + 4))
ctxt.Out.Write64(ld.R_PPC64_TOC16_LO | uint64(elfsym)<<32)
case objabi.R_ADDRPOWER_TOCREL_DS:
ld.Thearch.Vput(ld.R_PPC64_TOC16_HA | uint64(elfsym)<<32)
ld.Thearch.Vput(uint64(r.Xadd))
ld.Thearch.Vput(uint64(sectoff + 4))
ld.Thearch.Vput(ld.R_PPC64_TOC16_LO_DS | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_TOC16_HA | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(r.Xadd))
ctxt.Out.Write64(uint64(sectoff + 4))
ctxt.Out.Write64(ld.R_PPC64_TOC16_LO_DS | uint64(elfsym)<<32)
case objabi.R_CALLPOWER:
if r.Siz != 4 {
return false
}
ld.Thearch.Vput(ld.R_PPC64_REL24 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_PPC64_REL24 | uint64(elfsym)<<32)
}
ld.Thearch.Vput(uint64(r.Xadd))
ctxt.Out.Write64(uint64(r.Xadd))
return true
}
@ -448,7 +448,7 @@ func elfsetupplt(ctxt *ld.Link) {
}
}
func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
func machoreloc1(arch *sys.Arch, out *ld.OutBuf, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
return false
}
@ -910,7 +910,7 @@ func asmb(ctxt *ld.Link) {
}
for _, sect := range ld.Segtext.Sections {
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
// Handle additional text sections with Codeblk
if sect.Name == ".text" {
ld.Codeblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
@ -923,14 +923,14 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f rodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrodata.Vaddr), int64(ld.Segrodata.Filelen))
}
if ld.Segrelrodata.Filelen > 0 {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f relrodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrelrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrelrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrelrodata.Vaddr), int64(ld.Segrelrodata.Filelen))
}
@ -938,10 +938,10 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f datblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segdata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segdata.Vaddr), int64(ld.Segdata.Filelen))
ld.Cseek(int64(ld.Segdwarf.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdwarf.Fileoff))
ld.Dwarfblk(ctxt, int64(ld.Segdwarf.Vaddr), int64(ld.Segdwarf.Filelen))
/* output symbol table */
@ -965,7 +965,7 @@ func asmb(ctxt *ld.Link) {
symo = uint32(ld.Segdata.Fileoff + ld.Segdata.Filelen)
}
ld.Cseek(int64(symo))
ctxt.Out.SeekSet(int64(symo))
switch ld.Headtype {
default:
if ld.Iself {
@ -973,8 +973,8 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f elfsym\n", ld.Cputime())
}
ld.Asmelfsym(ctxt)
ld.Cflush()
ld.Cwrite(ld.Elfstrdat)
ctxt.Out.Flush()
ctxt.Out.Write(ld.Elfstrdat)
if ld.Linkmode == ld.LinkExternal {
ld.Elfemitreloc(ctxt)
@ -983,13 +983,13 @@ func asmb(ctxt *ld.Link) {
case objabi.Hplan9:
ld.Asmplan9sym(ctxt)
ld.Cflush()
ctxt.Out.Flush()
sym := ctxt.Syms.Lookup("pclntab", 0)
if sym != nil {
ld.Lcsize = int32(len(sym.P))
ld.Cwrite(sym.P)
ld.Cflush()
ctxt.Out.Write(sym.P)
ctxt.Out.Flush()
}
}
}
@ -997,18 +997,18 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f header\n", ld.Cputime())
}
ld.Cseek(0)
ctxt.Out.SeekSet(0)
switch ld.Headtype {
default:
case objabi.Hplan9: /* plan 9 */
ld.Thearch.Lput(0x647) /* magic */
ld.Thearch.Lput(uint32(ld.Segtext.Filelen)) /* sizes */
ld.Thearch.Lput(uint32(ld.Segdata.Filelen))
ld.Thearch.Lput(uint32(ld.Segdata.Length - ld.Segdata.Filelen))
ld.Thearch.Lput(uint32(ld.Symsize)) /* nsyms */
ld.Thearch.Lput(uint32(ld.Entryvalue(ctxt))) /* va of entry */
ld.Thearch.Lput(0)
ld.Thearch.Lput(uint32(ld.Lcsize))
ctxt.Out.Write32(0x647) /* magic */
ctxt.Out.Write32(uint32(ld.Segtext.Filelen)) /* sizes */
ctxt.Out.Write32(uint32(ld.Segdata.Filelen))
ctxt.Out.Write32(uint32(ld.Segdata.Length - ld.Segdata.Filelen))
ctxt.Out.Write32(uint32(ld.Symsize)) /* nsyms */
ctxt.Out.Write32(uint32(ld.Entryvalue(ctxt))) /* va of entry */
ctxt.Out.Write32(0)
ctxt.Out.Write32(uint32(ld.Lcsize))
case objabi.Hlinux,
objabi.Hfreebsd,
@ -1018,7 +1018,7 @@ func asmb(ctxt *ld.Link) {
ld.Asmbelf(ctxt, int64(symo))
}
ld.Cflush()
ctxt.Out.Flush()
if *ld.FlagC {
fmt.Printf("textsize=%d\n", ld.Segtext.Filelen)
fmt.Printf("datsize=%d\n", ld.Segdata.Filelen)

16
src/cmd/link/internal/ppc64/obj.go
View File

@ -71,22 +71,6 @@ func Init() (*sys.Arch, ld.Arch) {
Solarisdynld: "XXX",
}
if arch == sys.ArchPPC64LE {
theArch.Lput = ld.Lputl
theArch.Wput = ld.Wputl
theArch.Vput = ld.Vputl
theArch.Append16 = ld.Append16l
theArch.Append32 = ld.Append32l
theArch.Append64 = ld.Append64l
} else {
theArch.Lput = ld.Lputb
theArch.Wput = ld.Wputb
theArch.Vput = ld.Vputb
theArch.Append16 = ld.Append16b
theArch.Append32 = ld.Append32b
theArch.Append64 = ld.Append64b
}
return arch, theArch
}

42
src/cmd/link/internal/s390x/asm.go
View File

@ -234,7 +234,7 @@ func adddynrel(ctxt *ld.Link, s *ld.Symbol, r *ld.Reloc) bool {
}
func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
ld.Thearch.Vput(uint64(sectoff))
ctxt.Out.Write64(uint64(sectoff))
elfsym := r.Xsym.ElfsymForReloc()
switch r.Type {
@ -246,30 +246,30 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
return false
case 4:
// WARNING - silently ignored by linker in ELF64
ld.Thearch.Vput(ld.R_390_TLS_LE32 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_390_TLS_LE32 | uint64(elfsym)<<32)
case 8:
// WARNING - silently ignored by linker in ELF32
ld.Thearch.Vput(ld.R_390_TLS_LE64 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_390_TLS_LE64 | uint64(elfsym)<<32)
}
case objabi.R_TLS_IE:
switch r.Siz {
default:
return false
case 4:
ld.Thearch.Vput(ld.R_390_TLS_IEENT | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_390_TLS_IEENT | uint64(elfsym)<<32)
}
case objabi.R_ADDR:
switch r.Siz {
default:
return false
case 4:
ld.Thearch.Vput(ld.R_390_32 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_390_32 | uint64(elfsym)<<32)
case 8:
ld.Thearch.Vput(ld.R_390_64 | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_390_64 | uint64(elfsym)<<32)
}
case objabi.R_GOTPCREL:
if r.Siz == 4 {
ld.Thearch.Vput(ld.R_390_GOTENT | uint64(elfsym)<<32)
ctxt.Out.Write64(ld.R_390_GOTENT | uint64(elfsym)<<32)
} else {
return false
}
@ -320,10 +320,10 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
if elfrel == ld.R_390_NONE {
return false // unsupported size/dbl combination
}
ld.Thearch.Vput(uint64(elfrel) | uint64(elfsym)<<32)
ctxt.Out.Write64(uint64(elfrel) | uint64(elfsym)<<32)
}
ld.Thearch.Vput(uint64(r.Xadd))
ctxt.Out.Write64(uint64(r.Xadd))
return true
}
@ -377,7 +377,7 @@ func elfsetupplt(ctxt *ld.Link) {
}
}
func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
func machoreloc1(arch *sys.Arch, out *ld.OutBuf, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
return false
}
@ -508,10 +508,10 @@ func asmb(ctxt *ld.Link) {
}
sect := ld.Segtext.Sections[0]
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Codeblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
for _, sect = range ld.Segtext.Sections[1:] {
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Datblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
}
@ -519,14 +519,14 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f rodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrodata.Vaddr), int64(ld.Segrodata.Filelen))
}
if ld.Segrelrodata.Filelen > 0 {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f rodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrelrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrelrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrelrodata.Vaddr), int64(ld.Segrelrodata.Filelen))
}
@ -534,10 +534,10 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f datblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segdata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segdata.Vaddr), int64(ld.Segdata.Filelen))
ld.Cseek(int64(ld.Segdwarf.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdwarf.Fileoff))
ld.Dwarfblk(ctxt, int64(ld.Segdwarf.Vaddr), int64(ld.Segdwarf.Filelen))
/* output symbol table */
@ -555,13 +555,13 @@ func asmb(ctxt *ld.Link) {
symo = uint32(ld.Segdwarf.Fileoff + ld.Segdwarf.Filelen)
symo = uint32(ld.Rnd(int64(symo), int64(*ld.FlagRound)))
ld.Cseek(int64(symo))
ctxt.Out.SeekSet(int64(symo))
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f elfsym\n", ld.Cputime())
}
ld.Asmelfsym(ctxt)
ld.Cflush()
ld.Cwrite(ld.Elfstrdat)
ctxt.Out.Flush()
ctxt.Out.Write(ld.Elfstrdat)
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f dwarf\n", ld.Cputime())
@ -575,7 +575,7 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f header\n", ld.Cputime())
}
ld.Cseek(0)
ctxt.Out.SeekSet(0)
switch ld.Headtype {
default:
ld.Errorf(nil, "unsupported operating system")
@ -583,7 +583,7 @@ func asmb(ctxt *ld.Link) {
ld.Asmbelf(ctxt, int64(symo))
}
ld.Cflush()
ctxt.Out.Flush()
if *ld.FlagC {
fmt.Printf("textsize=%d\n", ld.Segtext.Filelen)
fmt.Printf("datsize=%d\n", ld.Segdata.Filelen)

6
src/cmd/link/internal/s390x/obj.go
View File

@ -56,12 +56,6 @@ func Init() (*sys.Arch, ld.Arch) {
Elfsetupplt: elfsetupplt,
Gentext: gentext,
Machoreloc1: machoreloc1,
Lput: ld.Lputb,
Wput: ld.Wputb,
Vput: ld.Vputb,
Append16: ld.Append16b,
Append32: ld.Append32b,
Append64: ld.Append64b,
Linuxdynld: "/lib64/ld64.so.1",

82
src/cmd/link/internal/x86/asm.go
View File

@ -342,7 +342,7 @@ func adddynrel(ctxt *ld.Link, s *ld.Symbol, r *ld.Reloc) bool {
}
func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
ld.Thearch.Lput(uint32(sectoff))
ctxt.Out.Write32(uint32(sectoff))
elfsym := r.Xsym.ElfsymForReloc()
switch r.Type {
@ -350,16 +350,16 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
return false
case objabi.R_ADDR:
if r.Siz == 4 {
ld.Thearch.Lput(ld.R_386_32 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_386_32 | uint32(elfsym)<<8)
} else {
return false
}
case objabi.R_GOTPCREL:
if r.Siz == 4 {
ld.Thearch.Lput(ld.R_386_GOTPC)
ctxt.Out.Write32(ld.R_386_GOTPC)
if r.Xsym.Name != "_GLOBAL_OFFSET_TABLE_" {
ld.Thearch.Lput(uint32(sectoff))
ld.Thearch.Lput(ld.R_386_GOT32 | uint32(elfsym)<<8)
ctxt.Out.Write32(uint32(sectoff))
ctxt.Out.Write32(ld.R_386_GOT32 | uint32(elfsym)<<8)
}
} else {
return false
@ -367,30 +367,30 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
case objabi.R_CALL:
if r.Siz == 4 {
if r.Xsym.Type == ld.SDYNIMPORT {
ld.Thearch.Lput(ld.R_386_PLT32 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_386_PLT32 | uint32(elfsym)<<8)
} else {
ld.Thearch.Lput(ld.R_386_PC32 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_386_PC32 | uint32(elfsym)<<8)
}
} else {
return false
}
case objabi.R_PCREL:
if r.Siz == 4 {
ld.Thearch.Lput(ld.R_386_PC32 | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_386_PC32 | uint32(elfsym)<<8)
} else {
return false
}
case objabi.R_TLS_LE:
if r.Siz == 4 {
ld.Thearch.Lput(ld.R_386_TLS_LE | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_386_TLS_LE | uint32(elfsym)<<8)
} else {
return false
}
case objabi.R_TLS_IE:
if r.Siz == 4 {
ld.Thearch.Lput(ld.R_386_GOTPC)
ld.Thearch.Lput(uint32(sectoff))
ld.Thearch.Lput(ld.R_386_TLS_GOTIE | uint32(elfsym)<<8)
ctxt.Out.Write32(ld.R_386_GOTPC)
ctxt.Out.Write32(uint32(sectoff))
ctxt.Out.Write32(ld.R_386_TLS_GOTIE | uint32(elfsym)<<8)
} else {
return false
}
@ -399,7 +399,7 @@ func elfreloc1(ctxt *ld.Link, r *ld.Reloc, sectoff int64) bool {
return true
}
func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
func machoreloc1(arch *sys.Arch, out *ld.OutBuf, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
var v uint32
rs := r.Xsym
@ -444,12 +444,12 @@ func machoreloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool
v |= 3 << 25
}
ld.Thearch.Lput(uint32(sectoff))
ld.Thearch.Lput(v)
out.Write32(uint32(sectoff))
out.Write32(v)
return true
}
func pereloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
func pereloc1(arch *sys.Arch, out *ld.OutBuf, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
var v uint32
rs := r.Xsym
@ -459,8 +459,8 @@ func pereloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
return false
}
ld.Thearch.Lput(uint32(sectoff))
ld.Thearch.Lput(uint32(rs.Dynid))
out.Write32(uint32(sectoff))
out.Write32(uint32(rs.Dynid))
switch r.Type {
default:
@ -477,7 +477,7 @@ func pereloc1(arch *sys.Arch, s *ld.Symbol, r *ld.Reloc, sectoff int64) bool {
v = ld.IMAGE_REL_I386_REL32
}
ld.Thearch.Wput(uint16(v))
out.Write16(uint16(v))
return true
}
@ -621,11 +621,11 @@ func asmb(ctxt *ld.Link) {
}
sect := ld.Segtext.Sections[0]
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
// 0xCC is INT $3 - breakpoint instruction
ld.CodeblkPad(ctxt, int64(sect.Vaddr), int64(sect.Length), []byte{0xCC})
for _, sect = range ld.Segtext.Sections[1:] {
ld.Cseek(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ctxt.Out.SeekSet(int64(sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff))
ld.Datblk(ctxt, int64(sect.Vaddr), int64(sect.Length))
}
@ -634,14 +634,14 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f rodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrodata.Vaddr), int64(ld.Segrodata.Filelen))
}
if ld.Segrelrodata.Filelen > 0 {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f relrodatblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segrelrodata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segrelrodata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segrelrodata.Vaddr), int64(ld.Segrelrodata.Filelen))
}
@ -649,10 +649,10 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f datblk\n", ld.Cputime())
}
ld.Cseek(int64(ld.Segdata.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdata.Fileoff))
ld.Datblk(ctxt, int64(ld.Segdata.Vaddr), int64(ld.Segdata.Filelen))
ld.Cseek(int64(ld.Segdwarf.Fileoff))
ctxt.Out.SeekSet(int64(ld.Segdwarf.Fileoff))
ld.Dwarfblk(ctxt, int64(ld.Segdwarf.Vaddr), int64(ld.Segdwarf.Filelen))
machlink := uint32(0)
@ -687,7 +687,7 @@ func asmb(ctxt *ld.Link) {
symo = uint32(ld.Rnd(int64(symo), ld.PEFILEALIGN))
}
ld.Cseek(int64(symo))
ctxt.Out.SeekSet(int64(symo))
switch ld.Headtype {
default:
if ld.Iself {
@ -695,8 +695,8 @@ func asmb(ctxt *ld.Link) {
ctxt.Logf("%5.2f elfsym\n", ld.Cputime())
}
ld.Asmelfsym(ctxt)
ld.Cflush()
ld.Cwrite(ld.Elfstrdat)
ctxt.Out.Flush()
ctxt.Out.Write(ld.Elfstrdat)
if ld.Linkmode == ld.LinkExternal {
ld.Elfemitreloc(ctxt)
@ -705,13 +705,13 @@ func asmb(ctxt *ld.Link) {
case objabi.Hplan9:
ld.Asmplan9sym(ctxt)
ld.Cflush()
ctxt.Out.Flush()
sym := ctxt.Syms.Lookup("pclntab", 0)
if sym != nil {
ld.Lcsize = int32(len(sym.P))
ld.Cwrite(sym.P)
ld.Cflush()
ctxt.Out.Write(sym.P)
ctxt.Out.Flush()
}
case objabi.Hwindows:
@ -729,20 +729,20 @@ func asmb(ctxt *ld.Link) {
if ctxt.Debugvlog != 0 {
ctxt.Logf("%5.2f headr\n", ld.Cputime())
}
ld.Cseek(0)
ctxt.Out.SeekSet(0)
switch ld.Headtype {
default:
case objabi.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(ctxt))) /* va of entry */
ld.Lputb(uint32(ld.Spsize)) /* sp offsets */
ld.Lputb(uint32(ld.Lcsize)) /* line offsets */
ctxt.Out.Write32b(uint32(magic)) /* magic */
ctxt.Out.Write32b(uint32(ld.Segtext.Filelen)) /* sizes */
ctxt.Out.Write32b(uint32(ld.Segdata.Filelen))
ctxt.Out.Write32b(uint32(ld.Segdata.Length - ld.Segdata.Filelen))
ctxt.Out.Write32b(uint32(ld.Symsize)) /* nsyms */
ctxt.Out.Write32b(uint32(ld.Entryvalue(ctxt))) /* va of entry */
ctxt.Out.Write32b(uint32(ld.Spsize)) /* sp offsets */
ctxt.Out.Write32b(uint32(ld.Lcsize)) /* line offsets */
case objabi.Hdarwin:
ld.Asmbmacho(ctxt)
@ -758,5 +758,5 @@ func asmb(ctxt *ld.Link) {
ld.Asmbpe(ctxt)
}
ld.Cflush()
ctxt.Out.Flush()
}

6
src/cmd/link/internal/x86/obj.go
View File

@ -57,12 +57,6 @@ func Init() (*sys.Arch, ld.Arch) {
Gentext: gentext,
Machoreloc1: machoreloc1,
PEreloc1: pereloc1,
Lput: ld.Lputl,
Wput: ld.Wputl,
Vput: ld.Vputl,
Append16: ld.Append16l,
Append32: ld.Append32l,
Append64: ld.Append64l,
Linuxdynld: "/lib/ld-linux.so.2",
Freebsddynld: "/usr/libexec/ld-elf.so.1",