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 bool 77 SetLoadAddress(lldb_private::Target &target, lldb::addr_t value, bool value_is_offset); 78 79 virtual lldb::ByteOrder 80 GetByteOrder () const; 81 82 virtual bool 83 IsExecutable () const; 84 85 virtual uint32_t 86 GetAddressByteSize () const; 87 88 // virtual lldb_private::AddressClass 89 // GetAddressClass (lldb::addr_t file_addr); 90 // 91 virtual lldb_private::Symtab * 92 GetSymtab (); 93 94 virtual bool 95 IsStripped (); 96 97 virtual void 98 CreateSections (lldb_private::SectionList &unified_section_list); 99 100 virtual void 101 Dump (lldb_private::Stream *s); 102 103 virtual bool 104 GetArchitecture (lldb_private::ArchSpec &arch); 105 106 virtual bool 107 GetUUID (lldb_private::UUID* uuid); 108 109 virtual uint32_t 110 GetDependentModules (lldb_private::FileSpecList& files); 111 112 //------------------------------------------------------------------ 113 // PluginInterface protocol 114 //------------------------------------------------------------------ 115 virtual lldb_private::ConstString 116 GetPluginName(); 117 118 virtual uint32_t 119 GetPluginVersion(); 120 // 121 // virtual lldb_private::Address 122 // GetEntryPointAddress (); 123 124 virtual ObjectFile::Type 125 CalculateType(); 126 127 virtual ObjectFile::Strata 128 CalculateStrata(); 129 130 protected: 131 bool NeedsEndianSwap() const; 132 133 typedef struct dos_header { // DOS .EXE header 134 uint16_t e_magic; // Magic number 135 uint16_t e_cblp; // Bytes on last page of file 136 uint16_t e_cp; // Pages in file 137 uint16_t e_crlc; // Relocations 138 uint16_t e_cparhdr; // Size of header in paragraphs 139 uint16_t e_minalloc; // Minimum extra paragraphs needed 140 uint16_t e_maxalloc; // Maximum extra paragraphs needed 141 uint16_t e_ss; // Initial (relative) SS value 142 uint16_t e_sp; // Initial SP value 143 uint16_t e_csum; // Checksum 144 uint16_t e_ip; // Initial IP value 145 uint16_t e_cs; // Initial (relative) CS value 146 uint16_t e_lfarlc; // File address of relocation table 147 uint16_t e_ovno; // Overlay number 148 uint16_t e_res[4]; // Reserved words 149 uint16_t e_oemid; // OEM identifier (for e_oeminfo) 150 uint16_t e_oeminfo; // OEM information; e_oemid specific 151 uint16_t e_res2[10]; // Reserved words 152 uint32_t e_lfanew; // File address of new exe header 153 } dos_header_t; 154 155 typedef struct coff_header { 156 uint16_t machine; 157 uint16_t nsects; 158 uint32_t modtime; 159 uint32_t symoff; 160 uint32_t nsyms; 161 uint16_t hdrsize; 162 uint16_t flags; 163 } coff_header_t; 164 165 typedef struct data_directory { 166 uint32_t vmaddr; 167 uint32_t vmsize; 168 } data_directory_t; 169 170 typedef struct coff_opt_header 171 { 172 uint16_t magic; 173 uint8_t major_linker_version; 174 uint8_t minor_linker_version; 175 uint32_t code_size; 176 uint32_t data_size; 177 uint32_t bss_size; 178 uint32_t entry; 179 uint32_t code_offset; 180 uint32_t data_offset; 181 182 uint64_t image_base; 183 uint32_t sect_alignment; 184 uint32_t file_alignment; 185 uint16_t major_os_system_version; 186 uint16_t minor_os_system_version; 187 uint16_t major_image_version; 188 uint16_t minor_image_version; 189 uint16_t major_subsystem_version; 190 uint16_t minor_subsystem_version; 191 uint32_t reserved1; 192 uint32_t image_size; 193 uint32_t header_size; 194 uint32_t checksum; 195 uint16_t subsystem; 196 uint16_t dll_flags; 197 uint64_t stack_reserve_size; 198 uint64_t stack_commit_size; 199 uint64_t heap_reserve_size; 200 uint64_t heap_commit_size; 201 uint32_t loader_flags; 202 // uint32_t num_data_dir_entries; 203 std::vector<data_directory> data_dirs; // will contain num_data_dir_entries entries 204 } coff_opt_header_t; 205 206 typedef enum coff_data_dir_type 207 { 208 coff_data_dir_export_table = 0, 209 coff_data_dir_import_table = 1, 210 } coff_data_dir_type; 211 212 typedef struct section_header { 213 char name[8]; 214 uint32_t vmsize; // Virtual Size 215 uint32_t vmaddr; // Virtual Addr 216 uint32_t size; // File size 217 uint32_t offset; // File offset 218 uint32_t reloff; // Offset to relocations 219 uint32_t lineoff;// Offset to line table entries 220 uint16_t nreloc; // Number of relocation entries 221 uint16_t nline; // Number of line table entries 222 uint32_t flags; 223 } section_header_t; 224 225 typedef struct coff_symbol { 226 char name[8]; 227 uint32_t value; 228 uint16_t sect; 229 uint16_t type; 230 uint8_t storage; 231 uint8_t naux; 232 } coff_symbol_t; 233 234 typedef struct export_directory_entry { 235 uint32_t characteristics; 236 uint32_t time_date_stamp; 237 uint16_t major_version; 238 uint16_t minor_version; 239 uint32_t name; 240 uint32_t base; 241 uint32_t number_of_functions; 242 uint32_t number_of_names; 243 uint32_t address_of_functions; 244 uint32_t address_of_names; 245 uint32_t address_of_name_ordinals; 246 } export_directory_entry; 247 248 static bool ParseDOSHeader (lldb_private::DataExtractor &data, dos_header_t &dos_header); 249 static bool ParseCOFFHeader (lldb_private::DataExtractor &data, lldb::offset_t *offset_ptr, coff_header_t &coff_header); 250 bool ParseCOFFOptionalHeader (lldb::offset_t *offset_ptr); 251 bool ParseSectionHeaders (uint32_t offset); 252 253 static void DumpDOSHeader(lldb_private::Stream *s, const dos_header_t& header); 254 static void DumpCOFFHeader(lldb_private::Stream *s, const coff_header_t& header); 255 static void DumpOptCOFFHeader(lldb_private::Stream *s, const coff_opt_header_t& header); 256 void DumpSectionHeaders(lldb_private::Stream *s); 257 void DumpSectionHeader(lldb_private::Stream *s, const section_header_t& sh); 258 bool GetSectionName(std::string& sect_name, const section_header_t& sect); 259 260 typedef std::vector<section_header_t> SectionHeaderColl; 261 typedef SectionHeaderColl::iterator SectionHeaderCollIter; 262 typedef SectionHeaderColl::const_iterator SectionHeaderCollConstIter; 263 private: 264 dos_header_t m_dos_header; 265 coff_header_t m_coff_header; 266 coff_opt_header_t m_coff_header_opt; 267 SectionHeaderColl m_sect_headers; 268 lldb::addr_t m_image_base; 269 }; 270 271 #endif // #ifndef liblldb_ObjectFilePECOFF_h_ 272