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Fix MIPS exception personality encoding.

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For MIPS, we have to encode the personality routine with
an indirect pointer to absptr; otherwise, some link warning
warning will be raised, and the program might crash in some
early MIPS Android device.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209907 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Logan Chien
2014-05-30 16:48:56 +00:00
parent ba735134d7
commit 731d23ed42
4 changed files with 46 additions and 9 deletions
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12
lib/CodeGen/TargetLoweringObjectFileImpl.cpp
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@ -48,16 +48,12 @@ MCSymbol *TargetLoweringObjectFileELF::getCFIPersonalitySymbol(
const GlobalValue *GV, Mangler &Mang, const TargetMachine &TM,
MachineModuleInfo *MMI) const {
unsigned Encoding = getPersonalityEncoding();
switch (Encoding & 0x70) {
default:
report_fatal_error("We do not support this DWARF encoding yet!");
case dwarf::DW_EH_PE_absptr:
return TM.getSymbol(GV, Mang);
case dwarf::DW_EH_PE_pcrel: {
if ((Encoding & 0x80) == dwarf::DW_EH_PE_indirect)
return getContext().GetOrCreateSymbol(StringRef("DW.ref.") +
TM.getSymbol(GV, Mang)->getName());
}
}
if ((Encoding & 0x70) == dwarf::DW_EH_PE_absptr)
return TM.getSymbol(GV, Mang);
report_fatal_error("We do not support this DWARF encoding yet!");
}
void TargetLoweringObjectFileELF::emitPersonalityValue(MCStreamer &Streamer,