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[dev.link] cmd/link: move asmb2 plan 9 architecture code out of architectures
Change-Id: I7a8f8edc4511e3ae0c44ec5017167f14d4c60755 Reviewed-on: https://go-review.googlesource.com/c/go/+/234891 Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Jeremy Faller
parent
13c1401b8e
commit
ebdb15f7f8
@ -679,41 +679,6 @@ func addgotsym(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, s loade
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}
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}
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func asmb2(ctxt *ld.Link, _ *loader.Loader) {
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if ctxt.IsDarwin() {
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panic("darwin should be generic")
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}
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if ctxt.IsElf() {
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panic("elf should be generic")
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}
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if ctxt.IsWindows() {
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panic("pe should be generic")
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}
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switch ctxt.HeadType {
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default:
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ld.Errorf(nil, "unknown header type %v", ctxt.HeadType)
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fallthrough
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case objabi.Hplan9:
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break
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}
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ld.Symsize = 0
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ld.Spsize = 0
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ld.Lcsize = 0
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if !*ld.FlagS {
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*ld.FlagS = true
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symo := int64(ld.Segdata.Fileoff + ld.Segdata.Filelen)
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ctxt.Out.SeekSet(symo)
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ld.Asmplan9sym(ctxt)
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}
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ctxt.Out.SeekSet(0)
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magic := uint32(4*26*26 + 7)
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ld.WritePlan9Header(ctxt.Out, magic, ld.Entryvalue(ctxt), true)
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}
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func tlsIEtoLE(P []byte, off, size int) {
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// Transform the PC-relative instruction into a constant load.
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// That is,
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@ -53,11 +53,13 @@ func Init() (*sys.Arch, ld.Arch) {
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// 0xCC is INT $3 - breakpoint instruction
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CodePad: []byte{0xCC},
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Plan9Magic: uint32(4*26*26 + 7),
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Plan9_64Bit: true,
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Adddynrel: adddynrel,
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Archinit: archinit,
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Archreloc: archreloc,
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Archrelocvariant: archrelocvariant,
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Asmb2: asmb2,
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Elfreloc1: elfreloc1,
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Elfsetupplt: elfsetupplt,
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Gentext: gentext,
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@ -670,32 +670,3 @@ func addgotsym(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, s loade
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ldr.Errorf(s, "addgotsym: unsupported binary format")
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}
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}
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func asmb2(ctxt *ld.Link, _ *loader.Loader) {
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if ctxt.IsElf() {
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panic("elf should be generic")
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}
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if ctxt.IsWindows() {
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panic("pe should be generic")
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}
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/* output symbol table */
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ld.Symsize = 0
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ld.Lcsize = 0
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if !*ld.FlagS {
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symo := uint32(ld.Segdata.Fileoff + ld.Segdata.Filelen)
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ctxt.Out.SeekSet(int64(symo))
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ld.Asmplan9sym(ctxt)
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}
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ld.WritePlan9Header(ctxt.Out, 0x647, ld.Entryvalue(ctxt), false)
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if *ld.FlagC {
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fmt.Printf("textsize=%d\n", ld.Segtext.Filelen)
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fmt.Printf("datsize=%d\n", ld.Segdata.Filelen)
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fmt.Printf("bsssize=%d\n", ld.Segdata.Length-ld.Segdata.Filelen)
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fmt.Printf("symsize=%d\n", ld.Symsize)
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fmt.Printf("lcsize=%d\n", ld.Lcsize)
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fmt.Printf("total=%d\n", ld.Segtext.Filelen+ld.Segdata.Length+uint64(ld.Symsize)+uint64(ld.Lcsize))
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}
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}
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@ -46,12 +46,13 @@ func Init() (*sys.Arch, ld.Arch) {
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Dwarfregsp: dwarfRegSP,
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Dwarfreglr: dwarfRegLR,
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Plan9Magic: 0x647,
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Adddynrel: adddynrel,
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Archinit: archinit,
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Archreloc: archreloc,
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Archrelocvariant: archrelocvariant,
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Trampoline: trampoline,
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Asmb2: asmb2,
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Elfreloc1: elfreloc1,
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Elfsetupplt: elfsetupplt,
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Gentext: gentext,
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@ -6,6 +6,7 @@ package ld
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import (
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"cmd/link/internal/loader"
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"fmt"
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"sync"
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)
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@ -74,12 +75,16 @@ func asmb(ctxt *Link, ldr *loader.Loader) {
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// - writing out the architecture specific pieces.
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// This function handles the second part.
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func asmb2(ctxt *Link) bool {
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// TODO: Spsize is only used for plan9
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if ctxt.IsDarwin() {
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machlink := Domacholink(ctxt)
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if ctxt.IsAIX() || ctxt.IsWasm() {
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return false
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}
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Symsize = 0
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Spsize = 0
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Lcsize = 0
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if ctxt.IsDarwin() {
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machlink := Domacholink(ctxt)
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if !*FlagS && ctxt.IsExternal() {
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symo := int64(Segdwarf.Fileoff + uint64(Rnd(int64(Segdwarf.Filelen), int64(*FlagRound))) + uint64(machlink))
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ctxt.Out.SeekSet(symo)
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@ -87,12 +92,9 @@ func asmb2(ctxt *Link) bool {
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}
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ctxt.Out.SeekSet(0)
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Asmbmacho(ctxt)
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return true
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}
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if ctxt.IsElf() {
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Symsize = 0
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Spsize = 0
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Lcsize = 0
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var symo int64
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if !*FlagS {
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symo = int64(Segdwarf.Fileoff + Segdwarf.Filelen)
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@ -106,16 +108,33 @@ func asmb2(ctxt *Link) bool {
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}
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ctxt.Out.SeekSet(0)
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Asmbelf(ctxt, symo)
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return true
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}
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if ctxt.IsWindows() {
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Symsize = 0
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Spsize = 0
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Lcsize = 0
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Asmbpe(ctxt)
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return true
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}
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return false
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if ctxt.IsPlan9() {
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if !*FlagS {
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*FlagS = true
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symo := int64(Segdata.Fileoff + Segdata.Filelen)
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ctxt.Out.SeekSet(symo)
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Asmplan9sym(ctxt)
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}
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ctxt.Out.SeekSet(0)
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WritePlan9Header(ctxt.Out, thearch.Plan9Magic, Entryvalue(ctxt), thearch.Plan9_64Bit)
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}
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if *FlagC {
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fmt.Printf("textsize=%d\n", Segtext.Filelen)
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fmt.Printf("datsize=%d\n", Segdata.Filelen)
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fmt.Printf("bsssize=%d\n", Segdata.Length-Segdata.Filelen)
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fmt.Printf("symsize=%d\n", Symsize)
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fmt.Printf("lcsize=%d\n", Lcsize)
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fmt.Printf("total=%d\n", Segtext.Filelen+Segdata.Length+uint64(Symsize)+uint64(Lcsize))
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}
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return true
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}
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// WritePlan9Header writes out the plan9 header at the present position in the OutBuf.
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@ -195,6 +195,10 @@ type Arch struct {
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// Set to true to write all text blocks in with CodeBlkWrite
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WriteTextBlocks bool
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// Plan 9 variables.
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Plan9Magic uint32
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Plan9_64Bit bool
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Adddynrel func(*Target, *loader.Loader, *ArchSyms, loader.Sym, loader.Reloc2, int) bool
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Archinit func(*Link)
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// Archreloc is an arch-specific hook that assists in relocation processing
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@ -509,28 +509,3 @@ func addgotsym(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, s loade
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ldr.Errorf(s, "addgotsym: unsupported binary format")
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}
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}
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func asmb2(ctxt *ld.Link, _ *loader.Loader) {
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if ctxt.IsDarwin() {
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panic("darwin should be generic")
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}
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if ctxt.IsElf() {
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panic("elf should be generic")
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}
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if ctxt.IsWindows() {
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panic("pe should be generic")
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}
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ld.Symsize = 0
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ld.Spsize = 0
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ld.Lcsize = 0
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if !*ld.FlagS {
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symo := uint32(ld.Segdata.Fileoff + ld.Segdata.Filelen)
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ctxt.Out.SeekSet(int64(symo))
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ld.Asmplan9sym(ctxt)
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}
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ctxt.Out.SeekSet(0)
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magic := uint32(4*11*11 + 7)
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ld.WritePlan9Header(ctxt.Out, magic, ld.Entryvalue(ctxt), false)
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}
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@ -48,11 +48,12 @@ func Init() (*sys.Arch, ld.Arch) {
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// 0xCC is INT $3 - breakpoint instruction
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CodePad: []byte{0xCC},
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Plan9Magic: uint32(4*11*11 + 7),
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Adddynrel: adddynrel,
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Archinit: archinit,
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Archreloc: archreloc,
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Archrelocvariant: archrelocvariant,
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Asmb2: asmb2,
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Elfreloc1: elfreloc1,
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Elfsetupplt: elfsetupplt,
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Gentext: gentext,
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