diff options
Diffstat (limited to 'llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp b/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp index 54de42a094f3..8729fd4b802c 100644 --- a/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp +++ b/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp @@ -9,6 +9,7 @@ #include "AArch64TargetObjectFile.h" #include "AArch64TargetMachine.h" #include "MCTargetDesc/AArch64MCExpr.h" +#include "MCTargetDesc/AArch64TargetStreamer.h" #include "llvm/BinaryFormat/Dwarf.h" #include "llvm/CodeGen/MachineModuleInfoImpls.h" #include "llvm/IR/Mangler.h" @@ -28,6 +29,21 @@ void AArch64_ELFTargetObjectFile::Initialize(MCContext &Ctx, SupportDebugThreadLocalLocation = false; } +void AArch64_ELFTargetObjectFile::emitPersonalityValueImpl( + MCStreamer &Streamer, const DataLayout &DL, const MCSymbol *Sym, + const MachineModuleInfo *MMI) const { + if (!MMI->getObjFileInfo<MachineModuleInfoELF>().hasSignedPersonality()) { + TargetLoweringObjectFileELF::emitPersonalityValueImpl(Streamer, DL, Sym, + MMI); + return; + } + auto *TS = static_cast<AArch64TargetStreamer *>(Streamer.getTargetStreamer()); + // The value is ptrauth_string_discriminator("personality") + constexpr uint16_t Discriminator = 0x7EAD; + TS->emitAuthValue(MCSymbolRefExpr::create(Sym, getContext()), Discriminator, + AArch64PACKey::IA, /*HasAddressDiversity=*/true); +} + const MCExpr *AArch64_ELFTargetObjectFile::getIndirectSymViaGOTPCRel( const GlobalValue *GV, const MCSymbol *Sym, const MCValue &MV, int64_t Offset, MachineModuleInfo *MMI, MCStreamer &Streamer) const { |