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ELF2: Do not use host pointer size to calculate x86_64 relocation addresses. 

Previous code had a potential portability issue because intptr_t is
not guaranteed to be 64 bit.

llvm-svn: 248856
This commit is contained in:
Rui Ueyama 2015-09-29 23:25:21 +00:00
parent 9a0db7cbef
commit e3fbc89c44
1 changed files with 2 additions and 2 deletions
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4
lld/ELF/Target.cpp
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@ -107,8 +107,8 @@ void X86_64TargetInfo::writePltEntry(uint8_t *Buf, uint64_t GotEntryAddr,
const uint8_t Inst[] = {0xff, 0x25, 0, 0, 0, 0, 0x90, 0x90}; const uint8_t Inst[] = {0xff, 0x25, 0, 0, 0, 0, 0x90, 0x90};
memcpy(Buf, Inst, sizeof(Inst)); memcpy(Buf, Inst, sizeof(Inst));
uintptr_t NextPC = PltEntryAddr + 6; uint64_t NextPC = PltEntryAddr + 6;
intptr_t Delta = GotEntryAddr - NextPC; int64_t Delta = GotEntryAddr - NextPC;
assert(isInt<32>(Delta)); assert(isInt<32>(Delta));
write32le(Buf + 2, Delta); write32le(Buf + 2, Delta);
} }