diff options
Diffstat (limited to 'lib/CodeGen')
-rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfCFIException.cpp | 13 | ||||
-rw-r--r-- | lib/CodeGen/TargetLoweringObjectFileImpl.cpp | 47 |
2 files changed, 44 insertions, 16 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp b/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp index 70c0c8a82e..5b92edeb29 100644 --- a/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp +++ b/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp @@ -109,17 +109,8 @@ void DwarfCFIException::BeginFunction(const MachineFunction *MF) { if (PerEncoding == dwarf::DW_EH_PE_omit || !Per) return; - const MCSymbol *Sym; - switch (PerEncoding & 0x70) { - default: - report_fatal_error("We do not support this DWARF encoding yet!"); - case dwarf::DW_EH_PE_absptr: - Sym = Asm->Mang->getSymbol(Per); - break; - case dwarf::DW_EH_PE_pcrel: - Sym = TLOF.getPersonalityPICSymbol(Per->getName()); - break; - } + const MCSymbol *Sym = TLOF.getCFIPersonalitySymbol(Per, PerEncoding, + Asm->Mang, MMI); Asm->OutStreamer.EmitCFIPersonality(Sym, PerEncoding); } diff --git a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp index 7888a838ad..1a4da73ffa 100644 --- a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp +++ b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp @@ -178,15 +178,29 @@ const MCSection *TargetLoweringObjectFileELF::getEHFrameSection() const { } MCSymbol * -TargetLoweringObjectFileELF::getPersonalityPICSymbol(StringRef Name) const { - Twine FullName = StringRef("DW.ref.") + Name; - return getContext().GetOrCreateSymbol(FullName); +TargetLoweringObjectFileELF::getCFIPersonalitySymbol(const GlobalValue *GV, + unsigned Encoding, + Mangler *Mang, + MachineModuleInfo *MMI) const { + switch (Encoding & 0x70) { + default: + report_fatal_error("We do not support this DWARF encoding yet!"); + case dwarf::DW_EH_PE_absptr: + return Mang->getSymbol(GV); + break; + case dwarf::DW_EH_PE_pcrel: { + Twine FullName = StringRef("DW.ref.") + Mang->getSymbol(GV)->getName(); + return getContext().GetOrCreateSymbol(FullName); + break; + } + } } void TargetLoweringObjectFileELF::emitPersonalityValue(MCStreamer &Streamer, const TargetMachine &TM, - const MCSymbol *Sym) const { - MCSymbol *Label = getPersonalityPICSymbol(Sym->getName()); + const MCSymbol *Sym) const { + Twine FullName = StringRef("DW.ref.") + Sym->getName(); + MCSymbol *Label = getContext().GetOrCreateSymbol(FullName); Streamer.EmitSymbolAttribute(Label, MCSA_Hidden); Streamer.EmitSymbolAttribute(Label, MCSA_Weak); Twine SectionName = StringRef(".data.") + Label->getName(); @@ -834,6 +848,29 @@ getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang, getExprForDwarfGlobalReference(GV, Mang, MMI, Encoding, Streamer); } +MCSymbol *TargetLoweringObjectFileMachO:: +getCFIPersonalitySymbol(const GlobalValue *GV, unsigned Encoding, Mangler *Mang, + MachineModuleInfo *MMI) const { + // The mach-o version of this method defaults to returning a stub reference. + MachineModuleInfoMachO &MachOMMI = + MMI->getObjFileInfo<MachineModuleInfoMachO>(); + + SmallString<128> Name; + Mang->getNameWithPrefix(Name, GV, true); + Name += "$non_lazy_ptr"; + + // Add information about the stub reference to MachOMMI so that the stub + // gets emitted by the asmprinter. + MCSymbol *SSym = getContext().GetOrCreateSymbol(Name.str()); + MachineModuleInfoImpl::StubValueTy &StubSym = MachOMMI.getGVStubEntry(SSym); + if (StubSym.getPointer() == 0) { + MCSymbol *Sym = Mang->getSymbol(GV); + StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage()); + } + + return SSym; +} + unsigned TargetLoweringObjectFileMachO::getPersonalityEncoding() const { return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4; } |