diff options
Diffstat (limited to 'lib/Target/AArch64/AArch64TargetObjectFile.cpp')
-rw-r--r-- | lib/Target/AArch64/AArch64TargetObjectFile.cpp | 46 |
1 files changed, 37 insertions, 9 deletions
diff --git a/lib/Target/AArch64/AArch64TargetObjectFile.cpp b/lib/Target/AArch64/AArch64TargetObjectFile.cpp index 663d619..4069038 100644 --- a/lib/Target/AArch64/AArch64TargetObjectFile.cpp +++ b/lib/Target/AArch64/AArch64TargetObjectFile.cpp @@ -6,19 +6,47 @@ // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// -// -// This file deals with any AArch64 specific requirements on object files. -// -//===----------------------------------------------------------------------===// - #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 -AArch64ElfTargetObjectFile::Initialize(MCContext &Ctx, - const TargetMachine &TM) { +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); +} |