1 //===- LDFileFormat.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 MCLD_LDFILE_FORMAT_H 10 #define MCLD_LDFILE_FORMAT_H 11 #ifdef ENABLE_UNITTEST 12 #include <gtest.h> 13 #endif 14 15 #include <cstdio> 16 #include <cassert> 17 18 namespace mcld { 19 20 class LDSection; 21 class ObjectBuilder; 22 23 /** \class LDFileFormat 24 * \brief LDFileFormat describes the common file formats. 25 */ 26 class LDFileFormat 27 { 28 public: 29 enum Kind { 30 Null, 31 Regular, 32 BSS, 33 NamePool, 34 Relocation, 35 Debug, 36 Target, 37 EhFrame, 38 EhFrameHdr, 39 GCCExceptTable, 40 Version, 41 Note, 42 MetaData, 43 Group, 44 LinkOnce, 45 StackNote, 46 Ignore, 47 Exclude 48 }; 49 50 protected: 51 LDFileFormat(); 52 53 public: 54 virtual ~LDFileFormat(); 55 56 /// initStdSections - initialize all standard section headers. 57 /// @param [in] pBuilder The ObjectBuilder to create section headers 58 /// @param [in] pBitClass The bitclass of target backend. 59 virtual void initStdSections(ObjectBuilder& pBuilder, 60 unsigned int pBitClass) = 0; 61 62 // ----- access functions ----- // getText()63 LDSection& getText() { 64 assert(NULL != f_pTextSection); 65 return *f_pTextSection; 66 } 67 getText()68 const LDSection& getText() const { 69 assert(NULL != f_pTextSection); 70 return *f_pTextSection; 71 } 72 getData()73 LDSection& getData() { 74 assert(NULL != f_pDataSection); 75 return *f_pDataSection; 76 } 77 getData()78 const LDSection& getData() const { 79 assert(NULL != f_pDataSection); 80 return *f_pDataSection; 81 } 82 getBSS()83 LDSection& getBSS() { 84 assert(NULL != f_pBSSSection); 85 return *f_pBSSSection; 86 } 87 getBSS()88 const LDSection& getBSS() const { 89 assert(NULL != f_pBSSSection); 90 return *f_pBSSSection; 91 } 92 getReadOnly()93 LDSection& getReadOnly() { 94 assert(NULL != f_pReadOnlySection); 95 return *f_pReadOnlySection; 96 } 97 getReadOnly()98 const LDSection& getReadOnly() const { 99 assert(NULL != f_pReadOnlySection); 100 return *f_pReadOnlySection; 101 } 102 protected: 103 // variable name : ELF MachO 104 LDSection* f_pTextSection; // .text __text 105 LDSection* f_pDataSection; // .data __data 106 LDSection* f_pBSSSection; // .bss __bss 107 LDSection* f_pReadOnlySection; // .rodata __const 108 }; 109 110 } // namespace of mcld 111 112 #endif 113 114