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cmd/link: remove support for darwin/386 relocations

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The darwin/386 port has been unsupported for years, but some
relocation handling specific to it has managed to survive till now.

Updates #37610

Change-Id: I27ae2ac5462c5f3ec219e9cb5dce6f83b037b816
Reviewed-on: https://go-review.googlesource.com/c/go/+/703777
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Than McIntosh <thanm@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
qmuntal 2025-09-15 14:51:40 +02:00 • committed by Quim Muntal
parent eb7c67fdc9
commit 17a0fabc43
1 changed files with 0 additions and 45 deletions
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45
src/cmd/link/internal/x86/asm.go
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@ -224,51 +224,6 @@ func adddynrel(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, s loade
su := ldr.MakeSymbolUpdater(s)
su.SetRelocType(rIdx, objabi.R_ADDR)
return true
case objabi.MachoRelocOffset + ld.MACHO_GENERIC_RELOC_VANILLA*2 + 0:
su := ldr.MakeSymbolUpdater(s)
su.SetRelocType(rIdx, objabi.R_ADDR)
if targType == sym.SDYNIMPORT {
ldr.Errorf(s, "unexpected reloc for dynamic symbol %s", ldr.SymName(targ))
}
return true
case objabi.MachoRelocOffset + ld.MACHO_GENERIC_RELOC_VANILLA*2 + 1:
su := ldr.MakeSymbolUpdater(s)
if targType == sym.SDYNIMPORT {
addpltsym(target, ldr, syms, targ)
su.SetRelocSym(rIdx, syms.PLT)
su.SetRelocAdd(rIdx, int64(ldr.SymPlt(targ)))
su.SetRelocType(rIdx, objabi.R_PCREL)
return true
}
su.SetRelocType(rIdx, objabi.R_PCREL)
return true
case objabi.MachoRelocOffset + ld.MACHO_FAKE_GOTPCREL:
su := ldr.MakeSymbolUpdater(s)
if targType != sym.SDYNIMPORT {
// have symbol
// turn MOVL of GOT entry into LEAL of symbol itself
sData := ldr.Data(s)
if r.Off() < 2 || sData[r.Off()-2] != 0x8b {
ldr.Errorf(s, "unexpected GOT reloc for non-dynamic symbol %s", ldr.SymName(targ))
return false
}
su.MakeWritable()
writeableData := su.Data()
writeableData[r.Off()-2] = 0x8d
su.SetRelocType(rIdx, objabi.R_PCREL)
return true
}
ld.AddGotSym(target, ldr, syms, targ, uint32(elf.R_386_GLOB_DAT))
su.SetRelocSym(rIdx, syms.GOT)
su.SetRelocAdd(rIdx, r.Add()+int64(ldr.SymGot(targ)))
su.SetRelocType(rIdx, objabi.R_PCREL)
return true
}
// Handle references to ELF symbols from our own object files.