mirror of
https://github.com/golang/go.git
synced 2025-12-08 06:10:04 +00:00
0722a49b37
Remove the "ElfSym" and "LocalElfSym" fields from sym.Symbol, replacing uses with loader method calls as needed. Change-Id: I3828f13203ece2bdc03eeb09ab37a5c94e21a726 Reviewed-on: https://go-review.googlesource.com/c/go/+/230462 Reviewed-by: Cherry Zhang <cherryyz@google.com>
555 lines
16 KiB
Go
555 lines
16 KiB
Go
// Inferno utils/5l/asm.c
|
|
// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/5l/asm.c
|
|
//
|
|
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
|
|
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
|
|
// Portions Copyright © 1997-1999 Vita Nuova Limited
|
|
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
|
|
// Portions Copyright © 2004,2006 Bruce Ellis
|
|
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
|
|
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
|
|
// Portions Copyright © 2009 The Go Authors. All rights reserved.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
// THE SOFTWARE.
|
|
|
|
package s390x
|
|
|
|
import (
|
|
"cmd/internal/objabi"
|
|
"cmd/internal/sys"
|
|
"cmd/link/internal/ld"
|
|
"cmd/link/internal/loader"
|
|
"cmd/link/internal/sym"
|
|
"debug/elf"
|
|
"fmt"
|
|
"sync"
|
|
)
|
|
|
|
// gentext generates assembly to append the local moduledata to the global
|
|
// moduledata linked list at initialization time. This is only done if the runtime
|
|
// is in a different module.
|
|
//
|
|
// <go.link.addmoduledata>:
|
|
// larl %r2, <local.moduledata>
|
|
// jg <runtime.addmoduledata@plt>
|
|
// undef
|
|
//
|
|
// The job of appending the moduledata is delegated to runtime.addmoduledata.
|
|
func gentext2(ctxt *ld.Link, ldr *loader.Loader) {
|
|
initfunc, addmoduledata := ld.PrepareAddmoduledata(ctxt)
|
|
if initfunc == nil {
|
|
return
|
|
}
|
|
|
|
// larl %r2, <local.moduledata>
|
|
initfunc.AddUint8(0xc0)
|
|
initfunc.AddUint8(0x20)
|
|
initfunc.AddSymRef(ctxt.Arch, ctxt.Moduledata2, 6, objabi.R_PCREL, 4)
|
|
r1 := initfunc.Relocs()
|
|
ldr.SetRelocVariant(initfunc.Sym(), r1.Count()-1, sym.RV_390_DBL)
|
|
|
|
// jg <runtime.addmoduledata[@plt]>
|
|
initfunc.AddUint8(0xc0)
|
|
initfunc.AddUint8(0xf4)
|
|
initfunc.AddSymRef(ctxt.Arch, addmoduledata, 6, objabi.R_CALL, 4)
|
|
r2 := initfunc.Relocs()
|
|
ldr.SetRelocVariant(initfunc.Sym(), r2.Count()-1, sym.RV_390_DBL)
|
|
|
|
// undef (for debugging)
|
|
initfunc.AddUint32(ctxt.Arch, 0)
|
|
}
|
|
|
|
func adddynrel2(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, s loader.Sym, r *loader.Reloc2, rIdx int) bool {
|
|
targ := r.Sym()
|
|
var targType sym.SymKind
|
|
if targ != 0 {
|
|
targType = ldr.SymType(targ)
|
|
}
|
|
|
|
switch r.Type() {
|
|
default:
|
|
if r.Type() >= objabi.ElfRelocOffset {
|
|
ldr.Errorf(s, "unexpected relocation type %d", r.Type())
|
|
return false
|
|
}
|
|
|
|
// Handle relocations found in ELF object files.
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_12),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_GOT12):
|
|
ldr.Errorf(s, "s390x 12-bit relocations have not been implemented (relocation type %d)", r.Type()-objabi.ElfRelocOffset)
|
|
return false
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_8),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_16),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_32),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_64):
|
|
if targType == sym.SDYNIMPORT {
|
|
ldr.Errorf(s, "unexpected R_390_nn relocation for dynamic symbol %s", ldr.SymName(targ))
|
|
}
|
|
|
|
su := ldr.MakeSymbolUpdater(s)
|
|
su.SetRelocType(rIdx, objabi.R_ADDR)
|
|
return true
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_PC16),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_PC32),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_PC64):
|
|
if targType == sym.SDYNIMPORT {
|
|
ldr.Errorf(s, "unexpected R_390_PCnn relocation for dynamic symbol %s", ldr.SymName(targ))
|
|
}
|
|
// TODO(mwhudson): the test of VisibilityHidden here probably doesn't make
|
|
// sense and should be removed when someone has thought about it properly.
|
|
if (targType == 0 || targType == sym.SXREF) && !ldr.AttrVisibilityHidden(targ) {
|
|
ldr.Errorf(s, "unknown symbol %s in pcrel", ldr.SymName(targ))
|
|
}
|
|
su := ldr.MakeSymbolUpdater(s)
|
|
su.SetRelocType(rIdx, objabi.R_PCREL)
|
|
su.SetRelocAdd(rIdx, r.Add()+int64(r.Siz()))
|
|
return true
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_GOT16),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_GOT32),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_GOT64):
|
|
ldr.Errorf(s, "unimplemented S390x relocation: %v", r.Type()-objabi.ElfRelocOffset)
|
|
return true
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_PLT16DBL),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_PLT32DBL):
|
|
su := ldr.MakeSymbolUpdater(s)
|
|
su.SetRelocType(rIdx, objabi.R_PCREL)
|
|
ldr.SetRelocVariant(s, rIdx, sym.RV_390_DBL)
|
|
su.SetRelocAdd(rIdx, r.Add()+int64(r.Siz()))
|
|
if targType == sym.SDYNIMPORT {
|
|
addpltsym2(target, ldr, syms, targ)
|
|
r.SetSym(syms.PLT2)
|
|
su.SetRelocAdd(rIdx, r.Add()+int64(ldr.SymPlt(targ)))
|
|
}
|
|
return true
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_PLT32),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_PLT64):
|
|
su := ldr.MakeSymbolUpdater(s)
|
|
su.SetRelocType(rIdx, objabi.R_PCREL)
|
|
su.SetRelocAdd(rIdx, r.Add()+int64(r.Siz()))
|
|
if targType == sym.SDYNIMPORT {
|
|
addpltsym2(target, ldr, syms, targ)
|
|
r.SetSym(syms.PLT2)
|
|
su.SetRelocAdd(rIdx, r.Add()+int64(ldr.SymPlt(targ)))
|
|
}
|
|
return true
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_COPY):
|
|
ldr.Errorf(s, "unimplemented S390x relocation: %v", r.Type()-objabi.ElfRelocOffset)
|
|
return false
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_GLOB_DAT):
|
|
ldr.Errorf(s, "unimplemented S390x relocation: %v", r.Type()-objabi.ElfRelocOffset)
|
|
return false
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_JMP_SLOT):
|
|
ldr.Errorf(s, "unimplemented S390x relocation: %v", r.Type()-objabi.ElfRelocOffset)
|
|
return false
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_RELATIVE):
|
|
ldr.Errorf(s, "unimplemented S390x relocation: %v", r.Type()-objabi.ElfRelocOffset)
|
|
return false
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_GOTOFF):
|
|
if targType == sym.SDYNIMPORT {
|
|
ldr.Errorf(s, "unexpected R_390_GOTOFF relocation for dynamic symbol %s", ldr.SymName(targ))
|
|
}
|
|
su := ldr.MakeSymbolUpdater(s)
|
|
su.SetRelocType(rIdx, objabi.R_GOTOFF)
|
|
return true
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_GOTPC):
|
|
su := ldr.MakeSymbolUpdater(s)
|
|
su.SetRelocType(rIdx, objabi.R_PCREL)
|
|
r.SetSym(syms.GOT2)
|
|
su.SetRelocAdd(rIdx, r.Add()+int64(r.Siz()))
|
|
return true
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_PC16DBL),
|
|
objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_PC32DBL):
|
|
su := ldr.MakeSymbolUpdater(s)
|
|
su.SetRelocType(rIdx, objabi.R_PCREL)
|
|
ldr.SetRelocVariant(s, rIdx, sym.RV_390_DBL)
|
|
su.SetRelocAdd(rIdx, r.Add()+int64(r.Siz()))
|
|
if targType == sym.SDYNIMPORT {
|
|
ldr.Errorf(s, "unexpected R_390_PCnnDBL relocation for dynamic symbol %s", ldr.SymName(targ))
|
|
}
|
|
return true
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_GOTPCDBL):
|
|
su := ldr.MakeSymbolUpdater(s)
|
|
su.SetRelocType(rIdx, objabi.R_PCREL)
|
|
ldr.SetRelocVariant(s, rIdx, sym.RV_390_DBL)
|
|
r.SetSym(syms.GOT2)
|
|
su.SetRelocAdd(rIdx, r.Add()+int64(r.Siz()))
|
|
return true
|
|
|
|
case objabi.ElfRelocOffset + objabi.RelocType(elf.R_390_GOTENT):
|
|
addgotsym2(target, ldr, syms, targ)
|
|
su := ldr.MakeSymbolUpdater(s)
|
|
su.SetRelocType(rIdx, objabi.R_PCREL)
|
|
ldr.SetRelocVariant(s, rIdx, sym.RV_390_DBL)
|
|
r.SetSym(syms.GOT2)
|
|
su.SetRelocAdd(rIdx, r.Add()+int64(ldr.SymGot(targ))+int64(r.Siz()))
|
|
return true
|
|
}
|
|
// Handle references to ELF symbols from our own object files.
|
|
if targType != sym.SDYNIMPORT {
|
|
return true
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
func elfreloc1(ctxt *ld.Link, r *sym.Reloc, sectoff int64) bool {
|
|
ctxt.Out.Write64(uint64(sectoff))
|
|
|
|
elfsym := ld.ElfSymForReloc(ctxt, r.Xsym)
|
|
switch r.Type {
|
|
default:
|
|
return false
|
|
case objabi.R_TLS_LE:
|
|
switch r.Siz {
|
|
default:
|
|
return false
|
|
case 4:
|
|
// WARNING - silently ignored by linker in ELF64
|
|
ctxt.Out.Write64(uint64(elf.R_390_TLS_LE32) | uint64(elfsym)<<32)
|
|
case 8:
|
|
// WARNING - silently ignored by linker in ELF32
|
|
ctxt.Out.Write64(uint64(elf.R_390_TLS_LE64) | uint64(elfsym)<<32)
|
|
}
|
|
case objabi.R_TLS_IE:
|
|
switch r.Siz {
|
|
default:
|
|
return false
|
|
case 4:
|
|
ctxt.Out.Write64(uint64(elf.R_390_TLS_IEENT) | uint64(elfsym)<<32)
|
|
}
|
|
case objabi.R_ADDR:
|
|
switch r.Siz {
|
|
default:
|
|
return false
|
|
case 4:
|
|
ctxt.Out.Write64(uint64(elf.R_390_32) | uint64(elfsym)<<32)
|
|
case 8:
|
|
ctxt.Out.Write64(uint64(elf.R_390_64) | uint64(elfsym)<<32)
|
|
}
|
|
case objabi.R_GOTPCREL:
|
|
if r.Siz == 4 {
|
|
ctxt.Out.Write64(uint64(elf.R_390_GOTENT) | uint64(elfsym)<<32)
|
|
} else {
|
|
return false
|
|
}
|
|
case objabi.R_PCREL, objabi.R_PCRELDBL, objabi.R_CALL:
|
|
elfrel := elf.R_390_NONE
|
|
isdbl := r.Variant&sym.RV_TYPE_MASK == sym.RV_390_DBL
|
|
// TODO(mundaym): all DBL style relocations should be
|
|
// signalled using the variant - see issue 14218.
|
|
switch r.Type {
|
|
case objabi.R_PCRELDBL, objabi.R_CALL:
|
|
isdbl = true
|
|
}
|
|
if r.Xsym.Type == sym.SDYNIMPORT && (r.Xsym.ElfType() == elf.STT_FUNC || r.Type == objabi.R_CALL) {
|
|
if isdbl {
|
|
switch r.Siz {
|
|
case 2:
|
|
elfrel = elf.R_390_PLT16DBL
|
|
case 4:
|
|
elfrel = elf.R_390_PLT32DBL
|
|
}
|
|
} else {
|
|
switch r.Siz {
|
|
case 4:
|
|
elfrel = elf.R_390_PLT32
|
|
case 8:
|
|
elfrel = elf.R_390_PLT64
|
|
}
|
|
}
|
|
} else {
|
|
if isdbl {
|
|
switch r.Siz {
|
|
case 2:
|
|
elfrel = elf.R_390_PC16DBL
|
|
case 4:
|
|
elfrel = elf.R_390_PC32DBL
|
|
}
|
|
} else {
|
|
switch r.Siz {
|
|
case 2:
|
|
elfrel = elf.R_390_PC16
|
|
case 4:
|
|
elfrel = elf.R_390_PC32
|
|
case 8:
|
|
elfrel = elf.R_390_PC64
|
|
}
|
|
}
|
|
}
|
|
if elfrel == elf.R_390_NONE {
|
|
return false // unsupported size/dbl combination
|
|
}
|
|
ctxt.Out.Write64(uint64(elfrel) | uint64(elfsym)<<32)
|
|
}
|
|
|
|
ctxt.Out.Write64(uint64(r.Xadd))
|
|
return true
|
|
}
|
|
|
|
func elfsetupplt(ctxt *ld.Link, plt, got *loader.SymbolBuilder, dynamic loader.Sym) {
|
|
if plt.Size() == 0 {
|
|
// stg %r1,56(%r15)
|
|
plt.AddUint8(0xe3)
|
|
plt.AddUint8(0x10)
|
|
plt.AddUint8(0xf0)
|
|
plt.AddUint8(0x38)
|
|
plt.AddUint8(0x00)
|
|
plt.AddUint8(0x24)
|
|
// larl %r1,_GLOBAL_OFFSET_TABLE_
|
|
plt.AddUint8(0xc0)
|
|
plt.AddUint8(0x10)
|
|
plt.AddSymRef(ctxt.Arch, got.Sym(), 6, objabi.R_PCRELDBL, 4)
|
|
// mvc 48(8,%r15),8(%r1)
|
|
plt.AddUint8(0xd2)
|
|
plt.AddUint8(0x07)
|
|
plt.AddUint8(0xf0)
|
|
plt.AddUint8(0x30)
|
|
plt.AddUint8(0x10)
|
|
plt.AddUint8(0x08)
|
|
// lg %r1,16(%r1)
|
|
plt.AddUint8(0xe3)
|
|
plt.AddUint8(0x10)
|
|
plt.AddUint8(0x10)
|
|
plt.AddUint8(0x10)
|
|
plt.AddUint8(0x00)
|
|
plt.AddUint8(0x04)
|
|
// br %r1
|
|
plt.AddUint8(0x07)
|
|
plt.AddUint8(0xf1)
|
|
// nopr %r0
|
|
plt.AddUint8(0x07)
|
|
plt.AddUint8(0x00)
|
|
// nopr %r0
|
|
plt.AddUint8(0x07)
|
|
plt.AddUint8(0x00)
|
|
// nopr %r0
|
|
plt.AddUint8(0x07)
|
|
plt.AddUint8(0x00)
|
|
|
|
// assume got->size == 0 too
|
|
got.AddAddrPlus(ctxt.Arch, dynamic, 0)
|
|
|
|
got.AddUint64(ctxt.Arch, 0)
|
|
got.AddUint64(ctxt.Arch, 0)
|
|
}
|
|
}
|
|
|
|
func machoreloc1(arch *sys.Arch, out *ld.OutBuf, s *sym.Symbol, r *sym.Reloc, sectoff int64) bool {
|
|
return false
|
|
}
|
|
|
|
func archreloc(target *ld.Target, syms *ld.ArchSyms, r *sym.Reloc, s *sym.Symbol, val int64) (int64, bool) {
|
|
if target.IsExternal() {
|
|
return val, false
|
|
}
|
|
|
|
switch r.Type {
|
|
case objabi.R_CONST:
|
|
return r.Add, true
|
|
case objabi.R_GOTOFF:
|
|
return ld.Symaddr(r.Sym) + r.Add - ld.Symaddr(syms.GOT), true
|
|
}
|
|
|
|
return val, false
|
|
}
|
|
|
|
func archrelocvariant(target *ld.Target, syms *ld.ArchSyms, r *sym.Reloc, s *sym.Symbol, t int64) int64 {
|
|
switch r.Variant & sym.RV_TYPE_MASK {
|
|
default:
|
|
ld.Errorf(s, "unexpected relocation variant %d", r.Variant)
|
|
return t
|
|
|
|
case sym.RV_NONE:
|
|
return t
|
|
|
|
case sym.RV_390_DBL:
|
|
if (t & 1) != 0 {
|
|
ld.Errorf(s, "%s+%v is not 2-byte aligned", r.Sym.Name, r.Sym.Value)
|
|
}
|
|
return t >> 1
|
|
}
|
|
}
|
|
|
|
func addpltsym2(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, s loader.Sym) {
|
|
if ldr.SymPlt(s) >= 0 {
|
|
return
|
|
}
|
|
|
|
ld.Adddynsym2(ldr, target, syms, s)
|
|
|
|
if target.IsElf() {
|
|
plt := ldr.MakeSymbolUpdater(syms.PLT2)
|
|
got := ldr.MakeSymbolUpdater(syms.GOT2)
|
|
rela := ldr.MakeSymbolUpdater(syms.RelaPLT2)
|
|
if plt.Size() == 0 {
|
|
panic("plt is not set up")
|
|
}
|
|
// larl %r1,_GLOBAL_OFFSET_TABLE_+index
|
|
|
|
plt.AddUint8(0xc0)
|
|
plt.AddUint8(0x10)
|
|
plt.AddPCRelPlus(target.Arch, got.Sym(), got.Size()+6)
|
|
pltrelocs := plt.Relocs()
|
|
ldr.SetRelocVariant(plt.Sym(), pltrelocs.Count()-1, sym.RV_390_DBL)
|
|
|
|
// add to got: pointer to current pos in plt
|
|
got.AddAddrPlus(target.Arch, plt.Sym(), plt.Size()+8) // weird but correct
|
|
// lg %r1,0(%r1)
|
|
plt.AddUint8(0xe3)
|
|
plt.AddUint8(0x10)
|
|
plt.AddUint8(0x10)
|
|
plt.AddUint8(0x00)
|
|
plt.AddUint8(0x00)
|
|
plt.AddUint8(0x04)
|
|
// br %r1
|
|
plt.AddUint8(0x07)
|
|
plt.AddUint8(0xf1)
|
|
// basr %r1,%r0
|
|
plt.AddUint8(0x0d)
|
|
plt.AddUint8(0x10)
|
|
// lgf %r1,12(%r1)
|
|
plt.AddUint8(0xe3)
|
|
plt.AddUint8(0x10)
|
|
plt.AddUint8(0x10)
|
|
plt.AddUint8(0x0c)
|
|
plt.AddUint8(0x00)
|
|
plt.AddUint8(0x14)
|
|
// jg .plt
|
|
plt.AddUint8(0xc0)
|
|
plt.AddUint8(0xf4)
|
|
|
|
plt.AddUint32(target.Arch, uint32(-((plt.Size() - 2) >> 1))) // roll-your-own relocation
|
|
//.plt index
|
|
plt.AddUint32(target.Arch, uint32(rela.Size())) // rela size before current entry
|
|
|
|
// rela
|
|
rela.AddAddrPlus(target.Arch, got.Sym(), got.Size()-8)
|
|
|
|
sDynid := ldr.SymDynid(s)
|
|
rela.AddUint64(target.Arch, ld.ELF64_R_INFO(uint32(sDynid), uint32(elf.R_390_JMP_SLOT)))
|
|
rela.AddUint64(target.Arch, 0)
|
|
|
|
ldr.SetPlt(s, int32(plt.Size()-32))
|
|
|
|
} else {
|
|
ldr.Errorf(s, "addpltsym: unsupported binary format")
|
|
}
|
|
}
|
|
|
|
func addgotsym2(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, s loader.Sym) {
|
|
if ldr.SymGot(s) >= 0 {
|
|
return
|
|
}
|
|
|
|
ld.Adddynsym2(ldr, target, syms, s)
|
|
got := ldr.MakeSymbolUpdater(syms.GOT2)
|
|
ldr.SetGot(s, int32(got.Size()))
|
|
got.AddUint64(target.Arch, 0)
|
|
|
|
if target.IsElf() {
|
|
rela := ldr.MakeSymbolUpdater(syms.Rela2)
|
|
rela.AddAddrPlus(target.Arch, got.Sym(), int64(ldr.SymGot(s)))
|
|
rela.AddUint64(target.Arch, ld.ELF64_R_INFO(uint32(ldr.SymDynid(s)), uint32(elf.R_390_GLOB_DAT)))
|
|
rela.AddUint64(target.Arch, 0)
|
|
} else {
|
|
ldr.Errorf(s, "addgotsym: unsupported binary format")
|
|
}
|
|
}
|
|
|
|
func asmb(ctxt *ld.Link, _ *loader.Loader) {
|
|
if ctxt.IsELF {
|
|
ld.Asmbelfsetup()
|
|
}
|
|
|
|
var wg sync.WaitGroup
|
|
sect := ld.Segtext.Sections[0]
|
|
offset := sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff
|
|
ld.WriteParallel(&wg, ld.Codeblk, ctxt, offset, sect.Vaddr, sect.Length)
|
|
|
|
for _, sect := range ld.Segtext.Sections[1:] {
|
|
offset := sect.Vaddr - ld.Segtext.Vaddr + ld.Segtext.Fileoff
|
|
ld.WriteParallel(&wg, ld.Datblk, ctxt, offset, sect.Vaddr, sect.Length)
|
|
}
|
|
|
|
if ld.Segrodata.Filelen > 0 {
|
|
ld.WriteParallel(&wg, ld.Datblk, ctxt, ld.Segrodata.Fileoff, ld.Segrodata.Vaddr, ld.Segrodata.Filelen)
|
|
}
|
|
|
|
if ld.Segrelrodata.Filelen > 0 {
|
|
ld.WriteParallel(&wg, ld.Datblk, ctxt, ld.Segrelrodata.Fileoff, ld.Segrelrodata.Vaddr, ld.Segrelrodata.Filelen)
|
|
}
|
|
|
|
ld.WriteParallel(&wg, ld.Datblk, ctxt, ld.Segdata.Fileoff, ld.Segdata.Vaddr, ld.Segdata.Filelen)
|
|
|
|
ld.WriteParallel(&wg, ld.Dwarfblk, ctxt, ld.Segdwarf.Fileoff, ld.Segdwarf.Vaddr, ld.Segdwarf.Filelen)
|
|
wg.Wait()
|
|
}
|
|
|
|
func asmb2(ctxt *ld.Link) {
|
|
/* output symbol table */
|
|
ld.Symsize = 0
|
|
|
|
ld.Lcsize = 0
|
|
symo := uint32(0)
|
|
if !*ld.FlagS {
|
|
if !ctxt.IsELF {
|
|
ld.Errorf(nil, "unsupported executable format")
|
|
}
|
|
symo = uint32(ld.Segdwarf.Fileoff + ld.Segdwarf.Filelen)
|
|
symo = uint32(ld.Rnd(int64(symo), int64(*ld.FlagRound)))
|
|
|
|
ctxt.Out.SeekSet(int64(symo))
|
|
ld.Asmelfsym(ctxt)
|
|
ctxt.Out.Write(ld.Elfstrdat)
|
|
|
|
if ctxt.LinkMode == ld.LinkExternal {
|
|
ld.Elfemitreloc(ctxt)
|
|
}
|
|
}
|
|
|
|
ctxt.Out.SeekSet(0)
|
|
switch ctxt.HeadType {
|
|
default:
|
|
ld.Errorf(nil, "unsupported operating system")
|
|
case objabi.Hlinux:
|
|
ld.Asmbelf(ctxt, int64(symo))
|
|
}
|
|
|
|
if *ld.FlagC {
|
|
fmt.Printf("textsize=%d\n", ld.Segtext.Filelen)
|
|
fmt.Printf("datsize=%d\n", ld.Segdata.Filelen)
|
|
fmt.Printf("bsssize=%d\n", ld.Segdata.Length-ld.Segdata.Filelen)
|
|
fmt.Printf("symsize=%d\n", ld.Symsize)
|
|
fmt.Printf("lcsize=%d\n", ld.Lcsize)
|
|
fmt.Printf("total=%d\n", ld.Segtext.Filelen+ld.Segdata.Length+uint64(ld.Symsize)+uint64(ld.Lcsize))
|
|
}
|
|
}
|