1 //===- AArch64LongBranchStub.h --------------------------------------------===// 2 // 3 // The MCLinker Project 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 #ifndef TARGET_AARCH64_AARCH64LONGBRANCHSTUB_H_ 10 #define TARGET_AARCH64_AARCH64LONGBRANCHSTUB_H_ 11 12 #include "mcld/Fragment/Stub.h" 13 #include "mcld/Support/Compiler.h" 14 #include <llvm/Support/DataTypes.h> 15 #include <string> 16 #include <vector> 17 18 namespace mcld { 19 20 class BranchIsland; 21 class IRBuilder; 22 class Relocation; 23 24 class AArch64LongBranchStub : public Stub { 25 public: 26 explicit AArch64LongBranchStub(bool pIsOutputPIC); 27 28 ~AArch64LongBranchStub(); 29 30 bool isMyDuty(const Relocation& pReloc, 31 uint64_t pSource, 32 uint64_t pTargetSymValue) const; 33 34 void applyFixup(Relocation& pSrcReloc, 35 IRBuilder& pBuilder, 36 BranchIsland& pIsland); 37 38 const std::string& name() const; 39 40 const uint8_t* getContent() const; 41 42 size_t size() const; 43 44 size_t alignment() const; 45 46 private: 47 /// for doClone 48 AArch64LongBranchStub(const uint32_t* pData, 49 size_t pSize, 50 const_fixup_iterator pBegin, 51 const_fixup_iterator pEnd); 52 53 /// doClone 54 Stub* doClone(); 55 56 private: 57 static const uint32_t PIC_TEMPLATE[]; 58 static const uint32_t TEMPLATE[]; 59 static const uint32_t ADRP_TEMPLATE[]; 60 const uint32_t* m_pData; 61 std::string m_Name; 62 size_t m_Size; 63 64 private: 65 DISALLOW_IMPLICIT_CONSTRUCTORS(AArch64LongBranchStub); 66 }; 67 68 } // namespace mcld 69 70 #endif // TARGET_AARCH64_AARCH64LONGBRANCHSTUB_H_ 71