1 //===-- ObjectFilePECOFF.h --------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 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 liblldb_ObjectFilePECOFF_h_ 11 #define liblldb_ObjectFilePECOFF_h_ 12 13 #include <vector> 14 15 #include "lldb/Host/Mutex.h" 16 #include "lldb/Symbol/ObjectFile.h" 17 18 class ObjectFilePECOFF : 19 public lldb_private::ObjectFile 20 { 21 public: 22 23 //------------------------------------------------------------------ 24 // Static Functions 25 //------------------------------------------------------------------ 26 static void 27 Initialize(); 28 29 static void 30 Terminate(); 31 32 static const char * 33 GetPluginNameStatic(); 34 35 static const char * 36 GetPluginDescriptionStatic(); 37 38 static ObjectFile * 39 CreateInstance (lldb_private::Module* module, 40 lldb::DataBufferSP& dataSP, 41 const lldb_private::FileSpec* file, 42 lldb::addr_t offset, 43 lldb::addr_t length); 44 45 static bool 46 MagicBytesMatch (lldb::DataBufferSP& dataSP); 47 48 49 ObjectFilePECOFF (lldb_private::Module* module, 50 lldb::DataBufferSP& dataSP, 51 const lldb_private::FileSpec* file, 52 lldb::addr_t offset, 53 lldb::addr_t length); 54 55 virtual 56 ~ObjectFilePECOFF(); 57 58 virtual bool 59 ParseHeader (); 60 61 virtual lldb::ByteOrder 62 GetByteOrder () const; 63 64 virtual bool 65 IsExecutable () const; 66 67 virtual size_t 68 GetAddressByteSize () const; 69 70 // virtual lldb_private::AddressClass 71 // GetAddressClass (lldb::addr_t file_addr); 72 // 73 virtual lldb_private::Symtab * 74 GetSymtab(); 75 76 virtual lldb_private::SectionList * 77 GetSectionList(); 78 79 virtual void 80 Dump (lldb_private::Stream *s); 81 82 virtual bool 83 GetArchitecture (lldb_private::ArchSpec &arch); 84 85 virtual bool 86 GetUUID (lldb_private::UUID* uuid); 87 88 virtual uint32_t 89 GetDependentModules (lldb_private::FileSpecList& files); 90 91 //------------------------------------------------------------------ 92 // PluginInterface protocol 93 //------------------------------------------------------------------ 94 virtual const char * 95 GetPluginName(); 96 97 virtual const char * 98 GetShortPluginName(); 99 100 virtual uint32_t 101 GetPluginVersion(); 102 // 103 // virtual lldb_private::Address 104 // GetEntryPointAddress (); 105 106 virtual ObjectFile::Type 107 CalculateType(); 108 109 virtual ObjectFile::Strata 110 CalculateStrata(); 111 112 protected: 113 bool NeedsEndianSwap() const; 114 115 typedef struct dos_header { // DOS .EXE header 116 uint16_t e_magic; // Magic number 117 uint16_t e_cblp; // Bytes on last page of file 118 uint16_t e_cp; // Pages in file 119 uint16_t e_crlc; // Relocations 120 uint16_t e_cparhdr; // Size of header in paragraphs 121 uint16_t e_minalloc; // Minimum extra paragraphs needed 122 uint16_t e_maxalloc; // Maximum extra paragraphs needed 123 uint16_t e_ss; // Initial (relative) SS value 124 uint16_t e_sp; // Initial SP value 125 uint16_t e_csum; // Checksum 126 uint16_t e_ip; // Initial IP value 127 uint16_t e_cs; // Initial (relative) CS value 128 uint16_t e_lfarlc; // File address of relocation table 129 uint16_t e_ovno; // Overlay number 130 uint16_t e_res[4]; // Reserved words 131 uint16_t e_oemid; // OEM identifier (for e_oeminfo) 132 uint16_t e_oeminfo; // OEM information; e_oemid specific 133 uint16_t e_res2[10]; // Reserved words 134 uint32_t e_lfanew; // File address of new exe header 135 } dos_header_t; 136 137 typedef struct coff_header { 138 uint16_t machine; 139 uint16_t nsects; 140 uint32_t modtime; 141 uint32_t symoff; 142 uint32_t nsyms; 143 uint16_t hdrsize; 144 uint16_t flags; 145 } coff_header_t; 146 147 typedef struct data_directory { 148 uint32_t vmaddr; 149 uint32_t vmsize; 150 } data_directory_t; 151 152 typedef struct coff_opt_header 153 { 154 uint16_t magic; 155 uint8_t major_linker_version; 156 uint8_t minor_linker_version; 157 uint32_t code_size; 158 uint32_t data_size; 159 uint32_t bss_size; 160 uint32_t entry; 161 uint32_t code_offset; 162 uint32_t data_offset; 163 164 uint64_t image_base; 165 uint32_t sect_alignment; 166 uint32_t file_alignment; 167 uint16_t major_os_system_version; 168 uint16_t minor_os_system_version; 169 uint16_t major_image_version; 170 uint16_t minor_image_version; 171 uint16_t major_subsystem_version; 172 uint16_t minor_subsystem_version; 173 uint32_t reserved1; 174 uint32_t image_size; 175 uint32_t header_size; 176 uint32_t checksum; 177 uint16_t subsystem; 178 uint16_t dll_flags; 179 uint64_t stack_reserve_size; 180 uint64_t stack_commit_size; 181 uint64_t heap_reserve_size; 182 uint64_t heap_commit_size; 183 uint32_t loader_flags; 184 // uint32_t num_data_dir_entries; 185 std::vector<data_directory> data_dirs; // will contain num_data_dir_entries entries 186 } coff_opt_header_t; 187 188 typedef struct section_header { 189 char name[8]; 190 uint32_t vmsize; // Virtual Size 191 uint32_t vmaddr; // Virtual Addr 192 uint32_t size; // File size 193 uint32_t offset; // File offset 194 uint32_t reloff; // Offset to relocations 195 uint32_t lineoff;// Offset to line table entries 196 uint16_t nreloc; // Number of relocation entries 197 uint16_t nline; // Number of line table entries 198 uint32_t flags; 199 } section_header_t; 200 201 typedef struct coff_symbol { 202 char name[8]; 203 uint32_t value; 204 uint16_t sect; 205 uint16_t type; 206 uint8_t storage; 207 uint8_t naux; 208 } coff_symbol_t; 209 210 bool ParseDOSHeader (); 211 bool ParseCOFFHeader (uint32_t* offset_ptr); 212 bool ParseCOFFOptionalHeader (uint32_t* offset_ptr); 213 bool ParseSectionHeaders (uint32_t offset); 214 215 static void DumpDOSHeader(lldb_private::Stream *s, const dos_header_t& header); 216 static void DumpCOFFHeader(lldb_private::Stream *s, const coff_header_t& header); 217 static void DumpOptCOFFHeader(lldb_private::Stream *s, const coff_opt_header_t& header); 218 void DumpSectionHeaders(lldb_private::Stream *s); 219 void DumpSectionHeader(lldb_private::Stream *s, const section_header_t& sh); 220 bool GetSectionName(std::string& sect_name, const section_header_t& sect); 221 222 typedef std::vector<section_header_t> SectionHeaderColl; 223 typedef SectionHeaderColl::iterator SectionHeaderCollIter; 224 typedef SectionHeaderColl::const_iterator SectionHeaderCollConstIter; 225 private: 226 mutable lldb_private::Mutex m_mutex; 227 mutable std::auto_ptr<lldb_private::SectionList> m_sections_ap; 228 mutable std::auto_ptr<lldb_private::Symtab> m_symtab_ap; 229 dos_header_t m_dos_header; 230 coff_header_t m_coff_header; 231 coff_opt_header_t m_coff_header_opt; 232 SectionHeaderColl m_sect_headers; 233 }; 234 235 #endif // #ifndef liblldb_ObjectFilePECOFF_h_ 236