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      1 //===- THMToARMStub.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 
     10 #ifndef TARGET_ARM_THMTOARMSTUB_H
     11 #define TARGET_ARM_THMTOARMSTUB_H
     12 
     13 #include <llvm/Support/DataTypes.h>
     14 #include <mcld/Fragment/Stub.h>
     15 #include <string>
     16 
     17 namespace mcld
     18 {
     19 
     20 class Relocation;
     21 class ResolveInfo;
     22 
     23 /** \class THMToARMStub
     24  *  \brief ARM stub for long call from ARM source to ARM target
     25  *
     26  */
     27 class THMToARMStub : public Stub
     28 {
     29 public:
     30   THMToARMStub(bool pIsOutputPIC, bool pUsingThumb2);
     31 
     32   ~THMToARMStub();
     33 
     34   // isMyDuty
     35   bool isMyDuty(const class Relocation& pReloc,
     36                 uint64_t pSource,
     37                 uint64_t pTargetSymValue) const;
     38 
     39   // observers
     40   const std::string& name() const;
     41 
     42   const uint8_t* getContent() const;
     43 
     44   size_t size() const;
     45 
     46   size_t alignment() const;
     47 
     48   // for T bit of this stub
     49   uint64_t initSymValue() const;
     50 
     51 private:
     52   THMToARMStub(const THMToARMStub&);
     53 
     54   THMToARMStub& operator=(const THMToARMStub&);
     55 
     56   /// for doClone
     57   THMToARMStub(const uint32_t* pData,
     58                size_t pSize,
     59                const_fixup_iterator pBegin,
     60                const_fixup_iterator pEnd,
     61                bool pUsingThumb2);
     62 
     63   /// doClone
     64   Stub* doClone();
     65 
     66 private:
     67   static const uint32_t PIC_TEMPLATE[];
     68   static const uint32_t TEMPLATE[];
     69   const uint32_t* m_pData;
     70   std::string m_Name;
     71   size_t m_Size;
     72   bool m_bUsingThumb2;
     73 };
     74 
     75 } // namespace of mcld
     76 
     77 #endif
     78