func main() {
log.SetFlags(0)
log.SetPrefix("asm: ")
GOARCH := obj.Getgoarch()
architecture := arch.Set(GOARCH)
if architecture == nil {
log.Fatalf("asm: unrecognized architecture %s", GOARCH)
}
flags.Parse()
// Create object file, write header.
fd, err := os.Create(*flags.OutputFile)
if err != nil {
log.Fatal(err)
}
ctxt := obj.Linknew(architecture.LinkArch)
if *flags.PrintOut {
ctxt.Debugasm = 1
}
ctxt.LineHist.TrimPathPrefix = *flags.TrimPath
ctxt.Flag_dynlink = *flags.Dynlink
if *flags.Shared || *flags.Dynlink {
ctxt.Flag_shared = 1
}
ctxt.Bso = obj.Binitw(os.Stdout)
defer ctxt.Bso.Flush()
output := obj.Binitw(fd)
fmt.Fprintf(output, "go object %s %s %s\n", obj.Getgoos(), obj.Getgoarch(), obj.Getgoversion())
fmt.Fprintf(output, "!\n")
lexer := lex.NewLexer(flag.Arg(0), ctxt)
parser := asm.NewParser(ctxt, architecture, lexer)
diag := false
ctxt.DiagFunc = func(format string, args ...interface{}) {
diag = true
log.Printf(format, args...)
}
pList := obj.Linknewplist(ctxt)
var ok bool
pList.Firstpc, ok = parser.Parse()
if ok {
// reports errors to parser.Errorf
obj.Writeobjdirect(ctxt, output)
}
if !ok || diag {
log.Printf("asm: assembly of %s failed", flag.Arg(0))
os.Remove(*flags.OutputFile)
os.Exit(1)
}
output.Flush()
}
func linkarchinit() {
ld.Thestring = obj.Getgoarch()
ld.Thelinkarch = &ld.Linkarm64
ld.Thearch.Thechar = thechar
ld.Thearch.Ptrsize = ld.Thelinkarch.Ptrsize
ld.Thearch.Intsize = ld.Thelinkarch.Ptrsize
ld.Thearch.Regsize = ld.Thelinkarch.Regsize
ld.Thearch.Funcalign = FuncAlign
ld.Thearch.Maxalign = MaxAlign
ld.Thearch.Minlc = MINLC
ld.Thearch.Dwarfregsp = DWARFREGSP
ld.Thearch.Dwarfreglr = DWARFREGLR
ld.Thearch.Adddynrel = adddynrel
ld.Thearch.Archinit = archinit
ld.Thearch.Archreloc = archreloc
ld.Thearch.Archrelocvariant = archrelocvariant
ld.Thearch.Asmb = asmb
ld.Thearch.Elfreloc1 = elfreloc1
ld.Thearch.Elfsetupplt = elfsetupplt
ld.Thearch.Gentext = gentext
ld.Thearch.Machoreloc1 = machoreloc1
ld.Thearch.Lput = ld.Lputl
ld.Thearch.Wput = ld.Wputl
ld.Thearch.Vput = ld.Vputl
ld.Thearch.Linuxdynld = "/lib/ld-linux-aarch64.so.1"
ld.Thearch.Freebsddynld = "XXX"
ld.Thearch.Openbsddynld = "XXX"
ld.Thearch.Netbsddynld = "XXX"
ld.Thearch.Dragonflydynld = "XXX"
ld.Thearch.Solarisdynld = "XXX"
}
func linkarchinit() {
if obj.Getgoarch() == "amd64p32" {
thelinkarch = &x86.Linkamd64p32
gc.Thearch.Thelinkarch = thelinkarch
thestring = "amd64p32"
gc.Thearch.Thestring = "amd64p32"
}
}
func main() {
switch obj.Getgoarch() {
default:
fmt.Fprintf(os.Stderr, "link: unknown architecture %q\n", obj.Getgoarch())
os.Exit(2)
case "386":
x86.Main()
case "amd64", "amd64p32":
amd64.Main()
case "arm":
arm.Main()
case "arm64":
arm64.Main()
case "mips64", "mips64le":
mips64.Main()
case "ppc64", "ppc64le":
ppc64.Main()
}
}
func linkarchinit() {
thestring = obj.Getgoarch()
gc.Thearch.Thestring = thestring
if thestring == "mips64le" {
thelinkarch = &mips.Linkmips64le
} else {
thelinkarch = &mips.Linkmips64
}
gc.Thearch.Thelinkarch = thelinkarch
}
func linkarchinit() {
thestring = obj.Getgoarch()
gc.Thearch.Thestring = thestring
if thestring == "ppc64le" {
thelinkarch = &ppc64.Linkppc64le
} else {
thelinkarch = &ppc64.Linkppc64
}
gc.Thearch.Thelinkarch = thelinkarch
}
func main() {
// disable timestamps for reproducible output
log.SetFlags(0)
log.SetPrefix("compile: ")
switch obj.Getgoarch() {
default:
fmt.Fprintf(os.Stderr, "compile: unknown architecture %q\n", obj.Getgoarch())
os.Exit(2)
case "386":
x86.Main()
case "amd64", "amd64p32":
amd64.Main()
case "arm":
arm.Main()
case "arm64":
arm64.Main()
case "mips64", "mips64le":
mips64.Main()
case "ppc64", "ppc64le":
ppc64.Main()
}
}
func linkarchinit() {
ld.Thestring = obj.Getgoarch()
if ld.Thestring == "ppc64le" {
ld.Thelinkarch = &ld.Linkppc64le
} else {
ld.Thelinkarch = &ld.Linkppc64
}
ld.Thearch.Thechar = thechar
ld.Thearch.Ptrsize = ld.Thelinkarch.Ptrsize
ld.Thearch.Intsize = ld.Thelinkarch.Ptrsize
ld.Thearch.Regsize = ld.Thelinkarch.Regsize
ld.Thearch.Funcalign = FuncAlign
ld.Thearch.Maxalign = MaxAlign
ld.Thearch.Minlc = MINLC
ld.Thearch.Dwarfregsp = DWARFREGSP
ld.Thearch.Dwarfreglr = DWARFREGLR
ld.Thearch.Adddynrel = adddynrel
ld.Thearch.Archinit = archinit
ld.Thearch.Archreloc = archreloc
ld.Thearch.Archrelocvariant = archrelocvariant
ld.Thearch.Asmb = asmb
ld.Thearch.Elfreloc1 = elfreloc1
ld.Thearch.Elfsetupplt = elfsetupplt
ld.Thearch.Gentext = gentext
ld.Thearch.Machoreloc1 = machoreloc1
if ld.Thelinkarch == &ld.Linkppc64le {
ld.Thearch.Lput = ld.Lputl
ld.Thearch.Wput = ld.Wputl
ld.Thearch.Vput = ld.Vputl
} else {
ld.Thearch.Lput = ld.Lputb
ld.Thearch.Wput = ld.Wputb
ld.Thearch.Vput = ld.Vputb
}
// TODO(austin): ABI v1 uses /usr/lib/ld.so.1
ld.Thearch.Linuxdynld = "/lib64/ld64.so.1"
ld.Thearch.Freebsddynld = "XXX"
ld.Thearch.Openbsddynld = "XXX"
ld.Thearch.Netbsddynld = "XXX"
ld.Thearch.Dragonflydynld = "XXX"
ld.Thearch.Solarisdynld = "XXX"
}
func betypeinit() {
gc.Widthptr = 8
gc.Widthint = 8
gc.Widthreg = 8
if obj.Getgoarch() == "amd64p32" {
gc.Widthptr = 4
gc.Widthint = 4
addptr = x86.AADDL
movptr = x86.AMOVL
leaptr = x86.ALEAL
cmpptr = x86.ACMPL
typedefs[0].Sameas = gc.TINT32
typedefs[1].Sameas = gc.TUINT32
typedefs[2].Sameas = gc.TUINT32
}
if gc.Ctxt.Flag_dynlink {
gc.Thearch.ReservedRegs = append(gc.Thearch.ReservedRegs, x86.REG_R15)
}
}
func linkarchinit() {
ld.Thestring = "amd64"
ld.Thelinkarch = &ld.Linkamd64
if obj.Getgoarch() == "amd64p32" {
ld.Thelinkarch = &ld.Linkamd64p32
}
ld.Thearch.Thechar = thechar
ld.Thearch.Ptrsize = ld.Thelinkarch.Ptrsize
ld.Thearch.Intsize = ld.Thelinkarch.Ptrsize
ld.Thearch.Regsize = ld.Thelinkarch.Regsize
ld.Thearch.Funcalign = FuncAlign
ld.Thearch.Maxalign = MaxAlign
ld.Thearch.Minlc = MINLC
ld.Thearch.Dwarfregsp = DWARFREGSP
ld.Thearch.Dwarfreglr = DWARFREGLR
ld.Thearch.Adddynrel = adddynrel
ld.Thearch.Archinit = archinit
ld.Thearch.Archreloc = archreloc
ld.Thearch.Archrelocvariant = archrelocvariant
ld.Thearch.Asmb = asmb
ld.Thearch.Elfreloc1 = elfreloc1
ld.Thearch.Elfsetupplt = elfsetupplt
ld.Thearch.Gentext = gentext
ld.Thearch.Machoreloc1 = machoreloc1
ld.Thearch.PEreloc1 = pereloc1
ld.Thearch.Lput = ld.Lputl
ld.Thearch.Wput = ld.Wputl
ld.Thearch.Vput = ld.Vputl
ld.Thearch.Linuxdynld = "/lib64/ld-linux-x86-64.so.2"
ld.Thearch.Freebsddynld = "/libexec/ld-elf.so.1"
ld.Thearch.Openbsddynld = "/usr/libexec/ld.so"
ld.Thearch.Netbsddynld = "/libexec/ld.elf_so"
ld.Thearch.Dragonflydynld = "/usr/libexec/ld-elf.so.2"
ld.Thearch.Solarisdynld = "/lib/amd64/ld.so.1"
}
func linknew(arch *LinkArch) *Link {
ctxt := new(Link)
ctxt.Hash = make(map[symVer]*LSym)
ctxt.Arch = arch
ctxt.Version = obj.HistVersion
ctxt.Goroot = obj.Getgoroot()
p := obj.Getgoarch()
if p != arch.Name {
log.Fatalf("invalid goarch %s (want %s)", p, arch.Name)
}
var buf string
buf, _ = os.Getwd()
if buf == "" {
buf = "/???"
}
buf = filepath.ToSlash(buf)
ctxt.Headtype = headtype(obj.Getgoos())
if ctxt.Headtype < 0 {
log.Fatalf("unknown goos %s", obj.Getgoos())
}
// Record thread-local storage offset.
// TODO(rsc): Move tlsoffset back into the linker.
switch ctxt.Headtype {
default:
log.Fatalf("unknown thread-local storage offset for %s", Headstr(ctxt.Headtype))
case obj.Hplan9, obj.Hwindows:
break
/*
* ELF uses TLS offset negative from FS.
* Translate 0(FS) and 8(FS) into -16(FS) and -8(FS).
* Known to low-level assembly in package runtime and runtime/cgo.
*/
case obj.Hlinux,
obj.Hfreebsd,
obj.Hnetbsd,
obj.Hopenbsd,
obj.Hdragonfly,
obj.Hsolaris:
if obj.Getgoos() == "android" {
switch ctxt.Arch.Thechar {
case '6':
// Android/amd64 constant - offset from 0(FS) to our TLS slot.
// Explained in src/runtime/cgo/gcc_android_*.c
ctxt.Tlsoffset = 0x1d0
case '8':
// Android/386 constant - offset from 0(GS) to our TLS slot.
ctxt.Tlsoffset = 0xf8
default:
ctxt.Tlsoffset = -1 * ctxt.Arch.Ptrsize
}
} else {
ctxt.Tlsoffset = -1 * ctxt.Arch.Ptrsize
}
case obj.Hnacl:
switch ctxt.Arch.Thechar {
default:
log.Fatalf("unknown thread-local storage offset for nacl/%s", ctxt.Arch.Name)
case '5':
ctxt.Tlsoffset = 0
case '6':
ctxt.Tlsoffset = 0
case '8':
ctxt.Tlsoffset = -8
}
/*
* OS X system constants - offset from 0(GS) to our TLS.
* Explained in src/runtime/cgo/gcc_darwin_*.c.
*/
case obj.Hdarwin:
switch ctxt.Arch.Thechar {
default:
log.Fatalf("unknown thread-local storage offset for darwin/%s", ctxt.Arch.Name)
case '5':
ctxt.Tlsoffset = 0 // dummy value, not needed
case '6':
ctxt.Tlsoffset = 0x8a0
case '7':
ctxt.Tlsoffset = 0 // dummy value, not needed
case '8':
ctxt.Tlsoffset = 0x468
}
}
// On arm, record goarm.
if ctxt.Arch.Thechar == '5' {
ctxt.Goarm = obj.Getgoarm()
}
return ctxt
}
func dumpobj() {
var err error
bout, err = obj.Bopenw(outfile)
if err != nil {
Flusherrors()
fmt.Printf("can't create %s: %v\n", outfile, err)
errorexit()
}
startobj := int64(0)
var arhdr [ArhdrSize]byte
if writearchive != 0 {
obj.Bwritestring(bout, "!<arch>\n")
arhdr = [ArhdrSize]byte{}
bout.Write(arhdr[:])
startobj = obj.Boffset(bout)
}
fmt.Fprintf(bout, "go object %s %s %s %s\n", obj.Getgoos(), obj.Getgoarch(), obj.Getgoversion(), obj.Expstring())
dumpexport()
if writearchive != 0 {
bout.Flush()
size := obj.Boffset(bout) - startobj
if size&1 != 0 {
obj.Bputc(bout, 0)
}
obj.Bseek(bout, startobj-ArhdrSize, 0)
formathdr(arhdr[:], "__.PKGDEF", size)
bout.Write(arhdr[:])
bout.Flush()
obj.Bseek(bout, startobj+size+(size&1), 0)
arhdr = [ArhdrSize]byte{}
bout.Write(arhdr[:])
startobj = obj.Boffset(bout)
fmt.Fprintf(bout, "go object %s %s %s %s\n", obj.Getgoos(), obj.Getgoarch(), obj.Getgoversion(), obj.Expstring())
}
if pragcgobuf != "" {
if writearchive != 0 {
// write empty export section; must be before cgo section
fmt.Fprintf(bout, "\n$$\n\n$$\n\n")
}
fmt.Fprintf(bout, "\n$$ // cgo\n")
fmt.Fprintf(bout, "%s\n$$\n\n", pragcgobuf)
}
fmt.Fprintf(bout, "\n!\n")
externs := len(externdcl)
dumpglobls()
dumptypestructs()
// Dump extra globals.
tmp := externdcl
if externdcl != nil {
externdcl = externdcl[externs:]
}
dumpglobls()
externdcl = tmp
dumpdata()
obj.Writeobjdirect(Ctxt, bout)
if writearchive != 0 {
bout.Flush()
size := obj.Boffset(bout) - startobj
if size&1 != 0 {
obj.Bputc(bout, 0)
}
obj.Bseek(bout, startobj-ArhdrSize, 0)
formathdr(arhdr[:], "_go_.o", size)
bout.Write(arhdr[:])
}
obj.Bterm(bout)
}