1 //===- MCDataFragment.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 MCDATAFRAGMENT_H 10 #define MCDATAFRAGMENT_H 11 #ifdef ENABLE_UNITTEST 12 #include <gtest.h> 13 #endif 14 #include <llvm/MC/MCAssembler.h> 15 #include <llvm/MC/MCInst.h> 16 #include <llvm/ADT/SmallString.h> 17 #include "mcld/LD/Relocation.h" 18 19 namespace mcld 20 { 21 22 /** \class MCDataFragment 23 * \brief MCDataFragment for mcld 24 * 25 * \see 26 * \author Diana Chen <diana.chen (at) mediatek.com> 27 */ 28 class MCDataFragment : public llvm::MCFragment 29 { 30 public: 31 typedef std::vector<Relocation*> RelocationsType; 32 private: 33 34 /// m_pFragment - llvm MCDataFragment for this MCDataFragment 35 llvm::MCDataFragment* m_pFragment; 36 37 /// m_Relocation - The list of relocations in this fragment 38 RelocationsType m_Relocations; 39 40 public: 41 typedef RelocationsType::const_iterator const_relocation_iterator; 42 typedef RelocationsType::iterator relocation_iterator; 43 44 public: 45 MCDataFragment(llvm::MCDataFragment& pFragment) 46 : m_pFragment(&pFragment) { 47 setParent( pFragment.getParent() ); 48 setAtom( pFragment.getAtom() ); 49 setLayoutOrder( pFragment.getLayoutOrder()); 50 } 51 ~MCDataFragment(){} 52 53 // ------ observers ------// 54 llvm::SmallString<32> &getContents() { return m_pFragment->getContents(); } 55 const llvm::SmallString<32> &getContents() const { return m_pFragment->getContents(); } 56 57 // relocation access 58 void addRelocation(Relocation &pReloc){ m_Relocations.push_back(&pReloc); } 59 60 RelocationsType &getRelocations() { return m_Relocations; } 61 const RelocationsType &getRelcoations() const { return m_Relocations; } 62 63 relocation_iterator relocation_begin() { return m_Relocations.begin(); } 64 const_relocation_iterator relocation_begin() const { return m_Relocations.begin(); } 65 66 relocation_iterator relocation_end() {return m_Relocations.end();} 67 const_relocation_iterator relocation_end() const {return m_Relocations.end();} 68 69 size_t relocations_size() const { return m_Relocations.size(); } 70 71 // fragment identification 72 static bool classof(const MCFragment *pF) { 73 return pF->getKind() == llvm::MCFragment::FT_Data; 74 } 75 static bool classof(const MCDataFragment *) { return true; } 76 77 // overwrite parent method 78 FragmentType getKind() const { return m_pFragment->getKind(); } 79 80 }; 81 82 } // namespace of mcld 83 84 #endif 85 86
