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PowerPC: Fix eh_frame relocation for PIC

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This patch fixes the PPC eh_frame definitions for the personality and 
frame unwinding for PIC objects. It makes PIC build correctly creates
relative relocations in the '.rela.eh_frame' segments and thus avoiding
a text relocation that generates a DT_TEXTREL segments in link phase.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171506 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adhemerval Zanella
2013-01-04 19:08:13 +00:00
parent 13410a11e7
commit 7b449889e7
5 changed files with 93 additions and 32 deletions
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6
lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
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@@ -517,6 +517,12 @@ void RuntimeDyldELF::resolvePPC64Relocation(const SectionEntry &Section,
uint8_t aalk = *(LocalAddress+3);
writeInt16BE(LocalAddress + 2, (aalk & 3) | ((Value + Addend) & 0xfffc));
} break;
case ELF::R_PPC64_ADDR32 : {
int32_t Result = static_cast<int32_t>(Value + Addend);
if (SignExtend32<32>(Result) != Result)
llvm_unreachable("Relocation R_PPC64_REL32 overflow");
writeInt32BE(LocalAddress, Result);
} break;
case ELF::R_PPC64_REL24 : {
uint64_t FinalAddress = (Section.LoadAddress + Offset);
int32_t delta = static_cast<int32_t>(Value - FinalAddress + Addend);