llvm/lib/Target/AArch64/AArch64TargetObjectFile.h

   1 //===-- AArch64TargetObjectFile.h - AArch64 Object Info -*- C++ ---------*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIB_TARGET_AARCH64_AARCH64TARGETOBJECTFILE_H
  10 #define LLVM_LIB_TARGET_AARCH64_AARCH64TARGETOBJECTFILE_H
  11
  12 #include "Utils/AArch64BaseInfo.h"
  13 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
  14 #include "llvm/Target/TargetLoweringObjectFile.h"
  15
  16 namespace llvm {
  17
  18 /// This implementation is used for AArch64 ELF targets (Linux in particular).
  19 class AArch64_ELFTargetObjectFile : public TargetLoweringObjectFileELF {
  20   void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
  21
  22 public:
  23   AArch64_ELFTargetObjectFile() {
  24     PLTRelativeVariantKind = MCSymbolRefExpr::VK_PLT;
  25     SupportIndirectSymViaGOTPCRel = true;
  26   }
  27
  28   const MCExpr *getIndirectSymViaGOTPCRel(const GlobalValue *GV,
  29                                           const MCSymbol *Sym,
  30                                           const MCValue &MV, int64_t Offset,
  31                                           MachineModuleInfo *MMI,
  32                                           MCStreamer &Streamer) const override;
  33
  34   MCSymbol *getAuthPtrSlotSymbol(const TargetMachine &TM,
  35                                  MachineModuleInfo *MMI, const MCSymbol *RawSym,
  36                                  AArch64PACKey::ID Key,
  37                                  uint16_t Discriminator) const;
  38 };
  39
  40 /// AArch64_MachoTargetObjectFile - This TLOF implementation is used for Darwin.
  41 class AArch64_MachoTargetObjectFile : public TargetLoweringObjectFileMachO {
  42 public:
  43   AArch64_MachoTargetObjectFile();
  44
  45   const MCExpr *getTTypeGlobalReference(const GlobalValue *GV,
  46                                         unsigned Encoding,
  47                                         const TargetMachine &TM,
  48                                         MachineModuleInfo *MMI,
  49                                         MCStreamer &Streamer) const override;
  50
  51   MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV,
  52                                     const TargetMachine &TM,
  53                                     MachineModuleInfo *MMI) const override;
  54
  55   const MCExpr *getIndirectSymViaGOTPCRel(const GlobalValue *GV,
  56                                           const MCSymbol *Sym,
  57                                           const MCValue &MV, int64_t Offset,
  58                                           MachineModuleInfo *MMI,
  59                                           MCStreamer &Streamer) const override;
  60
  61   void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
  62                          const TargetMachine &TM) const override;
  63
  64   MCSymbol *getAuthPtrSlotSymbol(const TargetMachine &TM,
  65                                  MachineModuleInfo *MMI, const MCSymbol *RawSym,
  66                                  AArch64PACKey::ID Key,
  67                                  uint16_t Discriminator) const;
  68 };
  69
  70 /// This implementation is used for AArch64 COFF targets.
  71 class AArch64_COFFTargetObjectFile : public TargetLoweringObjectFileCOFF {};
  72
  73 } // end namespace llvm
  74
  75 #endif