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/Symbol/ObjectFile.h" 16 17 class ObjectFilePECOFF : 18 public lldb_private::ObjectFile 19 { 20 public: 21 22 //------------------------------------------------------------------ 23 // Static Functions 24 //------------------------------------------------------------------ 25 static void 26 Initialize(); 27 28 static void 29 Terminate(); 30 31 static lldb_private::ConstString 32 GetPluginNameStatic(); 33 34 static const char * 35 GetPluginDescriptionStatic(); 36 37 static ObjectFile * 38 CreateInstance (const lldb::ModuleSP &module_sp, 39 lldb::DataBufferSP& data_sp, 40 lldb::offset_t data_offset, 41 const lldb_private::FileSpec* file, 42 lldb::offset_t offset, 43 lldb::offset_t length); 44 45 static lldb_private::ObjectFile * 46 CreateMemoryInstance (const lldb::ModuleSP &module_sp, 47 lldb::DataBufferSP& data_sp, 48 const lldb::ProcessSP &process_sp, 49 lldb::addr_t header_addr); 50 51 static size_t 52 GetModuleSpecifications (const lldb_private::FileSpec& file, 53 lldb::DataBufferSP& data_sp, 54 lldb::offset_t data_offset, 55 lldb::offset_t file_offset, 56 lldb::offset_t length, 57 lldb_private::ModuleSpecList &specs); 58 59 static bool 60 MagicBytesMatch (lldb::DataBufferSP& data_sp); 61 62 63 ObjectFilePECOFF (const lldb::ModuleSP &module_sp, 64 lldb::DataBufferSP& data_sp, 65 lldb::offset_t data_offset, 66 const lldb_private::FileSpec* file, 67 lldb::offset_t file_offset, 68 lldb::offset_t length); 69 70 virtual 71 ~ObjectFilePECOFF(); 72 73 virtual bool 74 ParseHeader (); 75 76 virtual lldb::ByteOrder 77 GetByteOrder () const; 78 79 virtual bool 80 IsExecutable () const; 81 82 virtual uint32_t 83 GetAddressByteSize () const; 84 85 // virtual lldb_private::AddressClass 86 // GetAddressClass (lldb::addr_t file_addr); 87 // 88 virtual lldb_private::Symtab * 89 GetSymtab (); 90 91 virtual bool 92 IsStripped (); 93 94 virtual void 95 CreateSections (lldb_private::SectionList &unified_section_list); 96 97 virtual void 98 Dump (lldb_private::Stream *s); 99 100 virtual bool 101 GetArchitecture (lldb_private::ArchSpec &arch); 102 103 virtual bool 104 GetUUID (lldb_private::UUID* uuid); 105 106 virtual uint32_t 107 GetDependentModules (lldb_private::FileSpecList& files); 108 109 //------------------------------------------------------------------ 110 // PluginInterface protocol 111 //------------------------------------------------------------------ 112 virtual lldb_private::ConstString 113 GetPluginName(); 114 115 virtual uint32_t 116 GetPluginVersion(); 117 // 118 // virtual lldb_private::Address 119 // GetEntryPointAddress (); 120 121 virtual ObjectFile::Type 122 CalculateType(); 123 124 virtual ObjectFile::Strata 125 CalculateStrata(); 126 127 protected: 128 bool NeedsEndianSwap() const; 129 130 typedef struct dos_header { // DOS .EXE header 131 uint16_t e_magic; // Magic number 132 uint16_t e_cblp; // Bytes on last page of file 133 uint16_t e_cp; // Pages in file 134 uint16_t e_crlc; // Relocations 135 uint16_t e_cparhdr; // Size of header in paragraphs 136 uint16_t e_minalloc; // Minimum extra paragraphs needed 137 uint16_t e_maxalloc; // Maximum extra paragraphs needed 138 uint16_t e_ss; // Initial (relative) SS value 139 uint16_t e_sp; // Initial SP value 140 uint16_t e_csum; // Checksum 141 uint16_t e_ip; // Initial IP value 142 uint16_t e_cs; // Initial (relative) CS value 143 uint16_t e_lfarlc; // File address of relocation table 144 uint16_t e_ovno; // Overlay number 145 uint16_t e_res[4]; // Reserved words 146 uint16_t e_oemid; // OEM identifier (for e_oeminfo) 147 uint16_t e_oeminfo; // OEM information; e_oemid specific 148 uint16_t e_res2[10]; // Reserved words 149 uint32_t e_lfanew; // File address of new exe header 150 } dos_header_t; 151 152 typedef struct coff_header { 153 uint16_t machine; 154 uint16_t nsects; 155 uint32_t modtime; 156 uint32_t symoff; 157 uint32_t nsyms; 158 uint16_t hdrsize; 159 uint16_t flags; 160 } coff_header_t; 161 162 typedef struct data_directory { 163 uint32_t vmaddr; 164 uint32_t vmsize; 165 } data_directory_t; 166 167 typedef struct coff_opt_header 168 { 169 uint16_t magic; 170 uint8_t major_linker_version; 171 uint8_t minor_linker_version; 172 uint32_t code_size; 173 uint32_t data_size; 174 uint32_t bss_size; 175 uint32_t entry; 176 uint32_t code_offset; 177 uint32_t data_offset; 178 179 uint64_t image_base; 180 uint32_t sect_alignment; 181 uint32_t file_alignment; 182 uint16_t major_os_system_version; 183 uint16_t minor_os_system_version; 184 uint16_t major_image_version; 185 uint16_t minor_image_version; 186 uint16_t major_subsystem_version; 187 uint16_t minor_subsystem_version; 188 uint32_t reserved1; 189 uint32_t image_size; 190 uint32_t header_size; 191 uint32_t checksum; 192 uint16_t subsystem; 193 uint16_t dll_flags; 194 uint64_t stack_reserve_size; 195 uint64_t stack_commit_size; 196 uint64_t heap_reserve_size; 197 uint64_t heap_commit_size; 198 uint32_t loader_flags; 199 // uint32_t num_data_dir_entries; 200 std::vector<data_directory> data_dirs; // will contain num_data_dir_entries entries 201 } coff_opt_header_t; 202 203 typedef struct section_header { 204 char name[8]; 205 uint32_t vmsize; // Virtual Size 206 uint32_t vmaddr; // Virtual Addr 207 uint32_t size; // File size 208 uint32_t offset; // File offset 209 uint32_t reloff; // Offset to relocations 210 uint32_t lineoff;// Offset to line table entries 211 uint16_t nreloc; // Number of relocation entries 212 uint16_t nline; // Number of line table entries 213 uint32_t flags; 214 } section_header_t; 215 216 typedef struct coff_symbol { 217 char name[8]; 218 uint32_t value; 219 uint16_t sect; 220 uint16_t type; 221 uint8_t storage; 222 uint8_t naux; 223 } coff_symbol_t; 224 225 bool ParseDOSHeader (); 226 bool ParseCOFFHeader (lldb::offset_t *offset_ptr); 227 bool ParseCOFFOptionalHeader (lldb::offset_t *offset_ptr); 228 bool ParseSectionHeaders (uint32_t offset); 229 230 static void DumpDOSHeader(lldb_private::Stream *s, const dos_header_t& header); 231 static void DumpCOFFHeader(lldb_private::Stream *s, const coff_header_t& header); 232 static void DumpOptCOFFHeader(lldb_private::Stream *s, const coff_opt_header_t& header); 233 void DumpSectionHeaders(lldb_private::Stream *s); 234 void DumpSectionHeader(lldb_private::Stream *s, const section_header_t& sh); 235 bool GetSectionName(std::string& sect_name, const section_header_t& sect); 236 237 typedef std::vector<section_header_t> SectionHeaderColl; 238 typedef SectionHeaderColl::iterator SectionHeaderCollIter; 239 typedef SectionHeaderColl::const_iterator SectionHeaderCollConstIter; 240 private: 241 dos_header_t m_dos_header; 242 coff_header_t m_coff_header; 243 coff_opt_header_t m_coff_header_opt; 244 SectionHeaderColl m_sect_headers; 245 }; 246 247 #endif // #ifndef liblldb_ObjectFilePECOFF_h_ 248