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 : public lldb_private::ObjectFile { 18 public: 19 typedef enum MachineType { 20 MachineUnknown = 0x0, 21 MachineAm33 = 0x1d3, 22 MachineAmd64 = 0x8664, 23 MachineArm = 0x1c0, 24 MachineArmNt = 0x1c4, 25 MachineArm64 = 0xaa64, 26 MachineEbc = 0xebc, 27 MachineX86 = 0x14c, 28 MachineIA64 = 0x200, 29 MachineM32R = 0x9041, 30 MachineMips16 = 0x266, 31 MachineMipsFpu = 0x366, 32 MachineMipsFpu16 = 0x466, 33 MachinePowerPc = 0x1f0, 34 MachinePowerPcfp = 0x1f1, 35 MachineR4000 = 0x166, 36 MachineSh3 = 0x1a2, 37 MachineSh3dsp = 0x1a3, 38 MachineSh4 = 0x1a6, 39 MachineSh5 = 0x1a8, 40 MachineThumb = 0x1c2, 41 MachineWcemIpsv2 = 0x169 42 } MachineType; 43 44 ObjectFilePECOFF(const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, 45 lldb::offset_t data_offset, 46 const lldb_private::FileSpec *file, 47 lldb::offset_t file_offset, lldb::offset_t length); 48 49 ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 50 lldb::DataBufferSP &header_data_sp, 51 const lldb::ProcessSP &process_sp, lldb::addr_t header_addr); 52 53 ~ObjectFilePECOFF() override; 54 55 //------------------------------------------------------------------ 56 // Static Functions 57 //------------------------------------------------------------------ 58 static void Initialize(); 59 60 static void Terminate(); 61 62 static lldb_private::ConstString GetPluginNameStatic(); 63 64 static const char *GetPluginDescriptionStatic(); 65 66 static ObjectFile * 67 CreateInstance(const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, 68 lldb::offset_t data_offset, const lldb_private::FileSpec *file, 69 lldb::offset_t offset, lldb::offset_t length); 70 71 static lldb_private::ObjectFile *CreateMemoryInstance( 72 const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, 73 const lldb::ProcessSP &process_sp, lldb::addr_t header_addr); 74 75 static size_t GetModuleSpecifications(const lldb_private::FileSpec &file, 76 lldb::DataBufferSP &data_sp, 77 lldb::offset_t data_offset, 78 lldb::offset_t file_offset, 79 lldb::offset_t length, 80 lldb_private::ModuleSpecList &specs); 81 82 static bool SaveCore(const lldb::ProcessSP &process_sp, 83 const lldb_private::FileSpec &outfile, 84 lldb_private::Status &error); 85 86 static bool MagicBytesMatch(lldb::DataBufferSP &data_sp); 87 88 static lldb::SymbolType MapSymbolType(uint16_t coff_symbol_type); 89 90 bool ParseHeader() override; 91 92 bool SetLoadAddress(lldb_private::Target &target, lldb::addr_t value, 93 bool value_is_offset) override; 94 95 lldb::ByteOrder GetByteOrder() const override; 96 97 bool IsExecutable() const override; 98 99 uint32_t GetAddressByteSize() const override; 100 101 // virtual lldb_private::AddressClass 102 // GetAddressClass (lldb::addr_t file_addr); 103 104 lldb_private::Symtab *GetSymtab() override; 105 106 bool IsStripped() override; 107 108 void CreateSections(lldb_private::SectionList &unified_section_list) override; 109 110 void Dump(lldb_private::Stream *s) override; 111 112 bool GetArchitecture(lldb_private::ArchSpec &arch) override; 113 114 bool GetUUID(lldb_private::UUID *uuid) override; 115 116 uint32_t GetDependentModules(lldb_private::FileSpecList &files) override; 117 118 virtual lldb_private::Address GetEntryPointAddress() override; 119 120 ObjectFile::Type CalculateType() override; 121 122 ObjectFile::Strata CalculateStrata() override; 123 124 //------------------------------------------------------------------ 125 // PluginInterface protocol 126 //------------------------------------------------------------------ 127 lldb_private::ConstString GetPluginName() override; 128 129 uint32_t GetPluginVersion() override; 130 131 bool IsWindowsSubsystem(); 132 133 lldb_private::DataExtractor ReadImageData(uint32_t offset, size_t size); 134 135 protected: 136 bool NeedsEndianSwap() const; 137 138 typedef struct dos_header { // DOS .EXE header 139 uint16_t e_magic; // Magic number 140 uint16_t e_cblp; // Bytes on last page of file 141 uint16_t e_cp; // Pages in file 142 uint16_t e_crlc; // Relocations 143 uint16_t e_cparhdr; // Size of header in paragraphs 144 uint16_t e_minalloc; // Minimum extra paragraphs needed 145 uint16_t e_maxalloc; // Maximum extra paragraphs needed 146 uint16_t e_ss; // Initial (relative) SS value 147 uint16_t e_sp; // Initial SP value 148 uint16_t e_csum; // Checksum 149 uint16_t e_ip; // Initial IP value 150 uint16_t e_cs; // Initial (relative) CS value 151 uint16_t e_lfarlc; // File address of relocation table 152 uint16_t e_ovno; // Overlay number 153 uint16_t e_res[4]; // Reserved words 154 uint16_t e_oemid; // OEM identifier (for e_oeminfo) 155 uint16_t e_oeminfo; // OEM information; e_oemid specific 156 uint16_t e_res2[10]; // Reserved words 157 uint32_t e_lfanew; // File address of new exe header 158 } dos_header_t; 159 160 typedef struct coff_header { 161 uint16_t machine; 162 uint16_t nsects; 163 uint32_t modtime; 164 uint32_t symoff; 165 uint32_t nsyms; 166 uint16_t hdrsize; 167 uint16_t flags; 168 } coff_header_t; 169 170 typedef struct data_directory { 171 uint32_t vmaddr; 172 uint32_t vmsize; 173 } data_directory_t; 174 175 typedef struct coff_opt_header { 176 uint16_t magic; 177 uint8_t major_linker_version; 178 uint8_t minor_linker_version; 179 uint32_t code_size; 180 uint32_t data_size; 181 uint32_t bss_size; 182 uint32_t entry; 183 uint32_t code_offset; 184 uint32_t data_offset; 185 186 uint64_t image_base; 187 uint32_t sect_alignment; 188 uint32_t file_alignment; 189 uint16_t major_os_system_version; 190 uint16_t minor_os_system_version; 191 uint16_t major_image_version; 192 uint16_t minor_image_version; 193 uint16_t major_subsystem_version; 194 uint16_t minor_subsystem_version; 195 uint32_t reserved1; 196 uint32_t image_size; 197 uint32_t header_size; 198 uint32_t checksum; 199 uint16_t subsystem; 200 uint16_t dll_flags; 201 uint64_t stack_reserve_size; 202 uint64_t stack_commit_size; 203 uint64_t heap_reserve_size; 204 uint64_t heap_commit_size; 205 uint32_t loader_flags; 206 // uint32_t num_data_dir_entries; 207 std::vector<data_directory> 208 data_dirs; // will contain num_data_dir_entries entries 209 } coff_opt_header_t; 210 211 typedef enum coff_data_dir_type { 212 coff_data_dir_export_table = 0, 213 coff_data_dir_import_table = 1, 214 } coff_data_dir_type; 215 216 typedef struct section_header { 217 char name[8]; 218 uint32_t vmsize; // Virtual Size 219 uint32_t vmaddr; // Virtual Addr 220 uint32_t size; // File size 221 uint32_t offset; // File offset 222 uint32_t reloff; // Offset to relocations 223 uint32_t lineoff; // Offset to line table entries 224 uint16_t nreloc; // Number of relocation entries 225 uint16_t nline; // Number of line table entries 226 uint32_t flags; 227 } section_header_t; 228 229 typedef struct coff_symbol { 230 char name[8]; 231 uint32_t value; 232 uint16_t sect; 233 uint16_t type; 234 uint8_t storage; 235 uint8_t naux; 236 } coff_symbol_t; 237 238 typedef struct export_directory_entry { 239 uint32_t characteristics; 240 uint32_t time_date_stamp; 241 uint16_t major_version; 242 uint16_t minor_version; 243 uint32_t name; 244 uint32_t base; 245 uint32_t number_of_functions; 246 uint32_t number_of_names; 247 uint32_t address_of_functions; 248 uint32_t address_of_names; 249 uint32_t address_of_name_ordinals; 250 } export_directory_entry; 251 252 static bool ParseDOSHeader(lldb_private::DataExtractor &data, 253 dos_header_t &dos_header); 254 static bool ParseCOFFHeader(lldb_private::DataExtractor &data, 255 lldb::offset_t *offset_ptr, 256 coff_header_t &coff_header); 257 bool ParseCOFFOptionalHeader(lldb::offset_t *offset_ptr); 258 bool ParseSectionHeaders(uint32_t offset); 259 260 static void DumpDOSHeader(lldb_private::Stream *s, 261 const dos_header_t &header); 262 static void DumpCOFFHeader(lldb_private::Stream *s, 263 const coff_header_t &header); 264 static void DumpOptCOFFHeader(lldb_private::Stream *s, 265 const coff_opt_header_t &header); 266 void DumpSectionHeaders(lldb_private::Stream *s); 267 void DumpSectionHeader(lldb_private::Stream *s, const section_header_t &sh); 268 bool GetSectionName(std::string §_name, const section_header_t §); 269 270 typedef std::vector<section_header_t> SectionHeaderColl; 271 typedef SectionHeaderColl::iterator SectionHeaderCollIter; 272 typedef SectionHeaderColl::const_iterator SectionHeaderCollConstIter; 273 274 private: 275 dos_header_t m_dos_header; 276 coff_header_t m_coff_header; 277 coff_opt_header_t m_coff_header_opt; 278 SectionHeaderColl m_sect_headers; 279 lldb::addr_t m_image_base; 280 lldb_private::Address m_entry_point_address; 281 }; 282 283 #endif // liblldb_ObjectFilePECOFF_h_ 284