diff options
Diffstat (limited to 'contrib/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp')
-rw-r--r-- | contrib/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp b/contrib/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp new file mode 100644 index 0000000..4069038 --- /dev/null +++ b/contrib/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp @@ -0,0 +1,52 @@ +//===-- AArch64TargetObjectFile.cpp - AArch64 Object Info -----------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "AArch64TargetObjectFile.h" +#include "AArch64TargetMachine.h" +#include "llvm/IR/Mangler.h" +#include "llvm/MC/MCContext.h" +#include "llvm/MC/MCExpr.h" +#include "llvm/MC/MCStreamer.h" +#include "llvm/Support/Dwarf.h" +using namespace llvm; +using namespace dwarf; + +void AArch64_ELFTargetObjectFile::Initialize(MCContext &Ctx, + const TargetMachine &TM) { + TargetLoweringObjectFileELF::Initialize(Ctx, TM); + InitializeELF(TM.Options.UseInitArray); +} + +const MCExpr *AArch64_MachoTargetObjectFile::getTTypeGlobalReference( + const GlobalValue *GV, unsigned Encoding, Mangler &Mang, + const TargetMachine &TM, MachineModuleInfo *MMI, + MCStreamer &Streamer) const { + // On Darwin, we can reference dwarf symbols with foo@GOT-., which + // is an indirect pc-relative reference. The default implementation + // won't reference using the GOT, so we need this target-specific + // version. + if (Encoding & (DW_EH_PE_indirect | DW_EH_PE_pcrel)) { + const MCSymbol *Sym = TM.getSymbol(GV, Mang); + const MCExpr *Res = + MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_GOT, getContext()); + MCSymbol *PCSym = getContext().CreateTempSymbol(); + Streamer.EmitLabel(PCSym); + const MCExpr *PC = MCSymbolRefExpr::Create(PCSym, getContext()); + return MCBinaryExpr::CreateSub(Res, PC, getContext()); + } + + return TargetLoweringObjectFileMachO::getTTypeGlobalReference( + GV, Encoding, Mang, TM, MMI, Streamer); +} + +MCSymbol *AArch64_MachoTargetObjectFile::getCFIPersonalitySymbol( + const GlobalValue *GV, Mangler &Mang, const TargetMachine &TM, + MachineModuleInfo *MMI) const { + return TM.getSymbol(GV, Mang); +} |