1 //===-- ObjectFilePECOFF.cpp ------------------------------------*- 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 #include "ObjectFilePECOFF.h" 11 #include "WindowsMiniDump.h" 12 13 #include "lldb/Core/FileSpecList.h" 14 #include "lldb/Core/Module.h" 15 #include "lldb/Core/ModuleSpec.h" 16 #include "lldb/Core/PluginManager.h" 17 #include "lldb/Core/Section.h" 18 #include "lldb/Core/StreamFile.h" 19 #include "lldb/Symbol/ObjectFile.h" 20 #include "lldb/Target/Process.h" 21 #include "lldb/Target/SectionLoadList.h" 22 #include "lldb/Target/Target.h" 23 #include "lldb/Utility/ArchSpec.h" 24 #include "lldb/Utility/DataBufferHeap.h" 25 #include "lldb/Utility/FileSpec.h" 26 #include "lldb/Utility/StreamString.h" 27 #include "lldb/Utility/Timer.h" 28 #include "lldb/Utility/UUID.h" 29 #include "llvm/BinaryFormat/COFF.h" 30 31 #include "llvm/Support/MemoryBuffer.h" 32 33 #define IMAGE_DOS_SIGNATURE 0x5A4D // MZ 34 #define IMAGE_NT_SIGNATURE 0x00004550 // PE00 35 #define OPT_HEADER_MAGIC_PE32 0x010b 36 #define OPT_HEADER_MAGIC_PE32_PLUS 0x020b 37 38 using namespace lldb; 39 using namespace lldb_private; 40 41 void ObjectFilePECOFF::Initialize() { 42 PluginManager::RegisterPlugin( 43 GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance, 44 CreateMemoryInstance, GetModuleSpecifications, SaveCore); 45 } 46 47 void ObjectFilePECOFF::Terminate() { 48 PluginManager::UnregisterPlugin(CreateInstance); 49 } 50 51 lldb_private::ConstString ObjectFilePECOFF::GetPluginNameStatic() { 52 static ConstString g_name("pe-coff"); 53 return g_name; 54 } 55 56 const char *ObjectFilePECOFF::GetPluginDescriptionStatic() { 57 return "Portable Executable and Common Object File Format object file reader " 58 "(32 and 64 bit)"; 59 } 60 61 ObjectFile *ObjectFilePECOFF::CreateInstance(const lldb::ModuleSP &module_sp, 62 DataBufferSP &data_sp, 63 lldb::offset_t data_offset, 64 const lldb_private::FileSpec *file, 65 lldb::offset_t file_offset, 66 lldb::offset_t length) { 67 if (!data_sp) { 68 data_sp = MapFileData(file, length, file_offset); 69 if (!data_sp) 70 return nullptr; 71 data_offset = 0; 72 } 73 74 if (!ObjectFilePECOFF::MagicBytesMatch(data_sp)) 75 return nullptr; 76 77 // Update the data to contain the entire file if it doesn't already 78 if (data_sp->GetByteSize() < length) { 79 data_sp = MapFileData(file, length, file_offset); 80 if (!data_sp) 81 return nullptr; 82 } 83 84 auto objfile_ap = llvm::make_unique<ObjectFilePECOFF>( 85 module_sp, data_sp, data_offset, file, file_offset, length); 86 if (!objfile_ap || !objfile_ap->ParseHeader()) 87 return nullptr; 88 89 return objfile_ap.release(); 90 } 91 92 ObjectFile *ObjectFilePECOFF::CreateMemoryInstance( 93 const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, 94 const lldb::ProcessSP &process_sp, lldb::addr_t header_addr) { 95 if (!data_sp || !ObjectFilePECOFF::MagicBytesMatch(data_sp)) 96 return nullptr; 97 auto objfile_ap = llvm::make_unique<ObjectFilePECOFF>( 98 module_sp, data_sp, process_sp, header_addr); 99 if (objfile_ap.get() && objfile_ap->ParseHeader()) { 100 return objfile_ap.release(); 101 } 102 return nullptr; 103 } 104 105 size_t ObjectFilePECOFF::GetModuleSpecifications( 106 const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp, 107 lldb::offset_t data_offset, lldb::offset_t file_offset, 108 lldb::offset_t length, lldb_private::ModuleSpecList &specs) { 109 const size_t initial_count = specs.GetSize(); 110 111 if (ObjectFilePECOFF::MagicBytesMatch(data_sp)) { 112 DataExtractor data; 113 data.SetData(data_sp, data_offset, length); 114 data.SetByteOrder(eByteOrderLittle); 115 116 dos_header_t dos_header; 117 coff_header_t coff_header; 118 119 if (ParseDOSHeader(data, dos_header)) { 120 lldb::offset_t offset = dos_header.e_lfanew; 121 uint32_t pe_signature = data.GetU32(&offset); 122 if (pe_signature != IMAGE_NT_SIGNATURE) 123 return false; 124 if (ParseCOFFHeader(data, &offset, coff_header)) { 125 ArchSpec spec; 126 if (coff_header.machine == MachineAmd64) { 127 spec.SetTriple("x86_64-pc-windows"); 128 specs.Append(ModuleSpec(file, spec)); 129 } else if (coff_header.machine == MachineX86) { 130 spec.SetTriple("i386-pc-windows"); 131 specs.Append(ModuleSpec(file, spec)); 132 spec.SetTriple("i686-pc-windows"); 133 specs.Append(ModuleSpec(file, spec)); 134 } 135 else if (coff_header.machine == MachineArmNt) 136 { 137 spec.SetTriple("arm-pc-windows"); 138 specs.Append(ModuleSpec(file, spec)); 139 } 140 } 141 } 142 } 143 144 return specs.GetSize() - initial_count; 145 } 146 147 bool ObjectFilePECOFF::SaveCore(const lldb::ProcessSP &process_sp, 148 const lldb_private::FileSpec &outfile, 149 lldb_private::Status &error) { 150 return SaveMiniDump(process_sp, outfile, error); 151 } 152 153 bool ObjectFilePECOFF::MagicBytesMatch(DataBufferSP &data_sp) { 154 DataExtractor data(data_sp, eByteOrderLittle, 4); 155 lldb::offset_t offset = 0; 156 uint16_t magic = data.GetU16(&offset); 157 return magic == IMAGE_DOS_SIGNATURE; 158 } 159 160 lldb::SymbolType ObjectFilePECOFF::MapSymbolType(uint16_t coff_symbol_type) { 161 // TODO: We need to complete this mapping of COFF symbol types to LLDB ones. 162 // For now, here's a hack to make sure our function have types. 163 const auto complex_type = 164 coff_symbol_type >> llvm::COFF::SCT_COMPLEX_TYPE_SHIFT; 165 if (complex_type == llvm::COFF::IMAGE_SYM_DTYPE_FUNCTION) { 166 return lldb::eSymbolTypeCode; 167 } 168 return lldb::eSymbolTypeInvalid; 169 } 170 171 ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 172 DataBufferSP &data_sp, 173 lldb::offset_t data_offset, 174 const FileSpec *file, 175 lldb::offset_t file_offset, 176 lldb::offset_t length) 177 : ObjectFile(module_sp, file, file_offset, length, data_sp, data_offset), 178 m_dos_header(), m_coff_header(), m_coff_header_opt(), m_sect_headers(), 179 m_entry_point_address() { 180 ::memset(&m_dos_header, 0, sizeof(m_dos_header)); 181 ::memset(&m_coff_header, 0, sizeof(m_coff_header)); 182 ::memset(&m_coff_header_opt, 0, sizeof(m_coff_header_opt)); 183 } 184 185 ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 186 DataBufferSP &header_data_sp, 187 const lldb::ProcessSP &process_sp, 188 addr_t header_addr) 189 : ObjectFile(module_sp, process_sp, header_addr, header_data_sp), 190 m_dos_header(), m_coff_header(), m_coff_header_opt(), m_sect_headers(), 191 m_entry_point_address() { 192 ::memset(&m_dos_header, 0, sizeof(m_dos_header)); 193 ::memset(&m_coff_header, 0, sizeof(m_coff_header)); 194 ::memset(&m_coff_header_opt, 0, sizeof(m_coff_header_opt)); 195 } 196 197 ObjectFilePECOFF::~ObjectFilePECOFF() {} 198 199 bool ObjectFilePECOFF::ParseHeader() { 200 ModuleSP module_sp(GetModule()); 201 if (module_sp) { 202 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 203 m_sect_headers.clear(); 204 m_data.SetByteOrder(eByteOrderLittle); 205 lldb::offset_t offset = 0; 206 207 if (ParseDOSHeader(m_data, m_dos_header)) { 208 offset = m_dos_header.e_lfanew; 209 uint32_t pe_signature = m_data.GetU32(&offset); 210 if (pe_signature != IMAGE_NT_SIGNATURE) 211 return false; 212 if (ParseCOFFHeader(m_data, &offset, m_coff_header)) { 213 if (m_coff_header.hdrsize > 0) 214 ParseCOFFOptionalHeader(&offset); 215 ParseSectionHeaders(offset); 216 } 217 return true; 218 } 219 } 220 return false; 221 } 222 223 bool ObjectFilePECOFF::SetLoadAddress(Target &target, addr_t value, 224 bool value_is_offset) { 225 bool changed = false; 226 ModuleSP module_sp = GetModule(); 227 if (module_sp) { 228 size_t num_loaded_sections = 0; 229 SectionList *section_list = GetSectionList(); 230 if (section_list) { 231 if (!value_is_offset) { 232 value -= m_image_base; 233 } 234 235 const size_t num_sections = section_list->GetSize(); 236 size_t sect_idx = 0; 237 238 for (sect_idx = 0; sect_idx < num_sections; ++sect_idx) { 239 // Iterate through the object file sections to find all of the sections 240 // that have SHF_ALLOC in their flag bits. 241 SectionSP section_sp(section_list->GetSectionAtIndex(sect_idx)); 242 if (section_sp && !section_sp->IsThreadSpecific()) { 243 if (target.GetSectionLoadList().SetSectionLoadAddress( 244 section_sp, section_sp->GetFileAddress() + value)) 245 ++num_loaded_sections; 246 } 247 } 248 changed = num_loaded_sections > 0; 249 } 250 } 251 return changed; 252 } 253 254 ByteOrder ObjectFilePECOFF::GetByteOrder() const { return eByteOrderLittle; } 255 256 bool ObjectFilePECOFF::IsExecutable() const { 257 return (m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0; 258 } 259 260 uint32_t ObjectFilePECOFF::GetAddressByteSize() const { 261 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32_PLUS) 262 return 8; 263 else if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) 264 return 4; 265 return 4; 266 } 267 268 //---------------------------------------------------------------------- 269 // NeedsEndianSwap 270 // 271 // Return true if an endian swap needs to occur when extracting data from this 272 // file. 273 //---------------------------------------------------------------------- 274 bool ObjectFilePECOFF::NeedsEndianSwap() const { 275 #if defined(__LITTLE_ENDIAN__) 276 return false; 277 #else 278 return true; 279 #endif 280 } 281 //---------------------------------------------------------------------- 282 // ParseDOSHeader 283 //---------------------------------------------------------------------- 284 bool ObjectFilePECOFF::ParseDOSHeader(DataExtractor &data, 285 dos_header_t &dos_header) { 286 bool success = false; 287 lldb::offset_t offset = 0; 288 success = data.ValidOffsetForDataOfSize(0, sizeof(dos_header)); 289 290 if (success) { 291 dos_header.e_magic = data.GetU16(&offset); // Magic number 292 success = dos_header.e_magic == IMAGE_DOS_SIGNATURE; 293 294 if (success) { 295 dos_header.e_cblp = data.GetU16(&offset); // Bytes on last page of file 296 dos_header.e_cp = data.GetU16(&offset); // Pages in file 297 dos_header.e_crlc = data.GetU16(&offset); // Relocations 298 dos_header.e_cparhdr = 299 data.GetU16(&offset); // Size of header in paragraphs 300 dos_header.e_minalloc = 301 data.GetU16(&offset); // Minimum extra paragraphs needed 302 dos_header.e_maxalloc = 303 data.GetU16(&offset); // Maximum extra paragraphs needed 304 dos_header.e_ss = data.GetU16(&offset); // Initial (relative) SS value 305 dos_header.e_sp = data.GetU16(&offset); // Initial SP value 306 dos_header.e_csum = data.GetU16(&offset); // Checksum 307 dos_header.e_ip = data.GetU16(&offset); // Initial IP value 308 dos_header.e_cs = data.GetU16(&offset); // Initial (relative) CS value 309 dos_header.e_lfarlc = 310 data.GetU16(&offset); // File address of relocation table 311 dos_header.e_ovno = data.GetU16(&offset); // Overlay number 312 313 dos_header.e_res[0] = data.GetU16(&offset); // Reserved words 314 dos_header.e_res[1] = data.GetU16(&offset); // Reserved words 315 dos_header.e_res[2] = data.GetU16(&offset); // Reserved words 316 dos_header.e_res[3] = data.GetU16(&offset); // Reserved words 317 318 dos_header.e_oemid = 319 data.GetU16(&offset); // OEM identifier (for e_oeminfo) 320 dos_header.e_oeminfo = 321 data.GetU16(&offset); // OEM information; e_oemid specific 322 dos_header.e_res2[0] = data.GetU16(&offset); // Reserved words 323 dos_header.e_res2[1] = data.GetU16(&offset); // Reserved words 324 dos_header.e_res2[2] = data.GetU16(&offset); // Reserved words 325 dos_header.e_res2[3] = data.GetU16(&offset); // Reserved words 326 dos_header.e_res2[4] = data.GetU16(&offset); // Reserved words 327 dos_header.e_res2[5] = data.GetU16(&offset); // Reserved words 328 dos_header.e_res2[6] = data.GetU16(&offset); // Reserved words 329 dos_header.e_res2[7] = data.GetU16(&offset); // Reserved words 330 dos_header.e_res2[8] = data.GetU16(&offset); // Reserved words 331 dos_header.e_res2[9] = data.GetU16(&offset); // Reserved words 332 333 dos_header.e_lfanew = 334 data.GetU32(&offset); // File address of new exe header 335 } 336 } 337 if (!success) 338 memset(&dos_header, 0, sizeof(dos_header)); 339 return success; 340 } 341 342 //---------------------------------------------------------------------- 343 // ParserCOFFHeader 344 //---------------------------------------------------------------------- 345 bool ObjectFilePECOFF::ParseCOFFHeader(DataExtractor &data, 346 lldb::offset_t *offset_ptr, 347 coff_header_t &coff_header) { 348 bool success = 349 data.ValidOffsetForDataOfSize(*offset_ptr, sizeof(coff_header)); 350 if (success) { 351 coff_header.machine = data.GetU16(offset_ptr); 352 coff_header.nsects = data.GetU16(offset_ptr); 353 coff_header.modtime = data.GetU32(offset_ptr); 354 coff_header.symoff = data.GetU32(offset_ptr); 355 coff_header.nsyms = data.GetU32(offset_ptr); 356 coff_header.hdrsize = data.GetU16(offset_ptr); 357 coff_header.flags = data.GetU16(offset_ptr); 358 } 359 if (!success) 360 memset(&coff_header, 0, sizeof(coff_header)); 361 return success; 362 } 363 364 bool ObjectFilePECOFF::ParseCOFFOptionalHeader(lldb::offset_t *offset_ptr) { 365 bool success = false; 366 const lldb::offset_t end_offset = *offset_ptr + m_coff_header.hdrsize; 367 if (*offset_ptr < end_offset) { 368 success = true; 369 m_coff_header_opt.magic = m_data.GetU16(offset_ptr); 370 m_coff_header_opt.major_linker_version = m_data.GetU8(offset_ptr); 371 m_coff_header_opt.minor_linker_version = m_data.GetU8(offset_ptr); 372 m_coff_header_opt.code_size = m_data.GetU32(offset_ptr); 373 m_coff_header_opt.data_size = m_data.GetU32(offset_ptr); 374 m_coff_header_opt.bss_size = m_data.GetU32(offset_ptr); 375 m_coff_header_opt.entry = m_data.GetU32(offset_ptr); 376 m_coff_header_opt.code_offset = m_data.GetU32(offset_ptr); 377 378 const uint32_t addr_byte_size = GetAddressByteSize(); 379 380 if (*offset_ptr < end_offset) { 381 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) { 382 // PE32 only 383 m_coff_header_opt.data_offset = m_data.GetU32(offset_ptr); 384 } else 385 m_coff_header_opt.data_offset = 0; 386 387 if (*offset_ptr < end_offset) { 388 m_coff_header_opt.image_base = 389 m_data.GetMaxU64(offset_ptr, addr_byte_size); 390 m_coff_header_opt.sect_alignment = m_data.GetU32(offset_ptr); 391 m_coff_header_opt.file_alignment = m_data.GetU32(offset_ptr); 392 m_coff_header_opt.major_os_system_version = m_data.GetU16(offset_ptr); 393 m_coff_header_opt.minor_os_system_version = m_data.GetU16(offset_ptr); 394 m_coff_header_opt.major_image_version = m_data.GetU16(offset_ptr); 395 m_coff_header_opt.minor_image_version = m_data.GetU16(offset_ptr); 396 m_coff_header_opt.major_subsystem_version = m_data.GetU16(offset_ptr); 397 m_coff_header_opt.minor_subsystem_version = m_data.GetU16(offset_ptr); 398 m_coff_header_opt.reserved1 = m_data.GetU32(offset_ptr); 399 m_coff_header_opt.image_size = m_data.GetU32(offset_ptr); 400 m_coff_header_opt.header_size = m_data.GetU32(offset_ptr); 401 m_coff_header_opt.checksum = m_data.GetU32(offset_ptr); 402 m_coff_header_opt.subsystem = m_data.GetU16(offset_ptr); 403 m_coff_header_opt.dll_flags = m_data.GetU16(offset_ptr); 404 m_coff_header_opt.stack_reserve_size = 405 m_data.GetMaxU64(offset_ptr, addr_byte_size); 406 m_coff_header_opt.stack_commit_size = 407 m_data.GetMaxU64(offset_ptr, addr_byte_size); 408 m_coff_header_opt.heap_reserve_size = 409 m_data.GetMaxU64(offset_ptr, addr_byte_size); 410 m_coff_header_opt.heap_commit_size = 411 m_data.GetMaxU64(offset_ptr, addr_byte_size); 412 m_coff_header_opt.loader_flags = m_data.GetU32(offset_ptr); 413 uint32_t num_data_dir_entries = m_data.GetU32(offset_ptr); 414 m_coff_header_opt.data_dirs.clear(); 415 m_coff_header_opt.data_dirs.resize(num_data_dir_entries); 416 uint32_t i; 417 for (i = 0; i < num_data_dir_entries; i++) { 418 m_coff_header_opt.data_dirs[i].vmaddr = m_data.GetU32(offset_ptr); 419 m_coff_header_opt.data_dirs[i].vmsize = m_data.GetU32(offset_ptr); 420 } 421 422 m_file_offset = m_coff_header_opt.image_base; 423 m_image_base = m_coff_header_opt.image_base; 424 } 425 } 426 } 427 // Make sure we are on track for section data which follows 428 *offset_ptr = end_offset; 429 return success; 430 } 431 432 DataExtractor ObjectFilePECOFF::ReadImageData(uint32_t offset, size_t size) { 433 if (m_file) { 434 // A bit of a hack, but we intend to write to this buffer, so we can't 435 // mmap it. 436 auto buffer_sp = MapFileData(m_file, size, offset); 437 return DataExtractor(buffer_sp, GetByteOrder(), GetAddressByteSize()); 438 } 439 ProcessSP process_sp(m_process_wp.lock()); 440 DataExtractor data; 441 if (process_sp) { 442 auto data_ap = llvm::make_unique<DataBufferHeap>(size, 0); 443 Status readmem_error; 444 size_t bytes_read = 445 process_sp->ReadMemory(m_image_base + offset, data_ap->GetBytes(), 446 data_ap->GetByteSize(), readmem_error); 447 if (bytes_read == size) { 448 DataBufferSP buffer_sp(data_ap.release()); 449 data.SetData(buffer_sp, 0, buffer_sp->GetByteSize()); 450 } 451 } 452 return data; 453 } 454 455 //---------------------------------------------------------------------- 456 // ParseSectionHeaders 457 //---------------------------------------------------------------------- 458 bool ObjectFilePECOFF::ParseSectionHeaders( 459 uint32_t section_header_data_offset) { 460 const uint32_t nsects = m_coff_header.nsects; 461 m_sect_headers.clear(); 462 463 if (nsects > 0) { 464 const size_t section_header_byte_size = nsects * sizeof(section_header_t); 465 DataExtractor section_header_data = 466 ReadImageData(section_header_data_offset, section_header_byte_size); 467 468 lldb::offset_t offset = 0; 469 if (section_header_data.ValidOffsetForDataOfSize( 470 offset, section_header_byte_size)) { 471 m_sect_headers.resize(nsects); 472 473 for (uint32_t idx = 0; idx < nsects; ++idx) { 474 const void *name_data = section_header_data.GetData(&offset, 8); 475 if (name_data) { 476 memcpy(m_sect_headers[idx].name, name_data, 8); 477 m_sect_headers[idx].vmsize = section_header_data.GetU32(&offset); 478 m_sect_headers[idx].vmaddr = section_header_data.GetU32(&offset); 479 m_sect_headers[idx].size = section_header_data.GetU32(&offset); 480 m_sect_headers[idx].offset = section_header_data.GetU32(&offset); 481 m_sect_headers[idx].reloff = section_header_data.GetU32(&offset); 482 m_sect_headers[idx].lineoff = section_header_data.GetU32(&offset); 483 m_sect_headers[idx].nreloc = section_header_data.GetU16(&offset); 484 m_sect_headers[idx].nline = section_header_data.GetU16(&offset); 485 m_sect_headers[idx].flags = section_header_data.GetU32(&offset); 486 } 487 } 488 } 489 } 490 491 return m_sect_headers.empty() == false; 492 } 493 494 bool ObjectFilePECOFF::GetSectionName(std::string §_name, 495 const section_header_t §) { 496 if (sect.name[0] == '/') { 497 lldb::offset_t stroff = strtoul(§.name[1], NULL, 10); 498 lldb::offset_t string_file_offset = 499 m_coff_header.symoff + (m_coff_header.nsyms * 18) + stroff; 500 const char *name = m_data.GetCStr(&string_file_offset); 501 if (name) { 502 sect_name = name; 503 return true; 504 } 505 506 return false; 507 } 508 sect_name = sect.name; 509 return true; 510 } 511 512 //---------------------------------------------------------------------- 513 // GetNListSymtab 514 //---------------------------------------------------------------------- 515 Symtab *ObjectFilePECOFF::GetSymtab() { 516 ModuleSP module_sp(GetModule()); 517 if (module_sp) { 518 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 519 if (m_symtab_ap.get() == NULL) { 520 SectionList *sect_list = GetSectionList(); 521 m_symtab_ap.reset(new Symtab(this)); 522 std::lock_guard<std::recursive_mutex> guard(m_symtab_ap->GetMutex()); 523 524 const uint32_t num_syms = m_coff_header.nsyms; 525 526 if (m_file && num_syms > 0 && m_coff_header.symoff > 0) { 527 const uint32_t symbol_size = 18; 528 const size_t symbol_data_size = num_syms * symbol_size; 529 // Include the 4-byte string table size at the end of the symbols 530 DataExtractor symtab_data = 531 ReadImageData(m_coff_header.symoff, symbol_data_size + 4); 532 lldb::offset_t offset = symbol_data_size; 533 const uint32_t strtab_size = symtab_data.GetU32(&offset); 534 if (strtab_size > 0) { 535 DataExtractor strtab_data = ReadImageData( 536 m_coff_header.symoff + symbol_data_size, strtab_size); 537 538 // First 4 bytes should be zeroed after strtab_size has been read, 539 // because it is used as offset 0 to encode a NULL string. 540 uint32_t *strtab_data_start = const_cast<uint32_t *>( 541 reinterpret_cast<const uint32_t *>(strtab_data.GetDataStart())); 542 strtab_data_start[0] = 0; 543 544 offset = 0; 545 std::string symbol_name; 546 Symbol *symbols = m_symtab_ap->Resize(num_syms); 547 for (uint32_t i = 0; i < num_syms; ++i) { 548 coff_symbol_t symbol; 549 const uint32_t symbol_offset = offset; 550 const char *symbol_name_cstr = NULL; 551 // If the first 4 bytes of the symbol string are zero, then they 552 // are followed by a 4-byte string table offset. Else these 553 // 8 bytes contain the symbol name 554 if (symtab_data.GetU32(&offset) == 0) { 555 // Long string that doesn't fit into the symbol table name, so 556 // now we must read the 4 byte string table offset 557 uint32_t strtab_offset = symtab_data.GetU32(&offset); 558 symbol_name_cstr = strtab_data.PeekCStr(strtab_offset); 559 symbol_name.assign(symbol_name_cstr); 560 } else { 561 // Short string that fits into the symbol table name which is 8 562 // bytes 563 offset += sizeof(symbol.name) - 4; // Skip remaining 564 symbol_name_cstr = symtab_data.PeekCStr(symbol_offset); 565 if (symbol_name_cstr == NULL) 566 break; 567 symbol_name.assign(symbol_name_cstr, sizeof(symbol.name)); 568 } 569 symbol.value = symtab_data.GetU32(&offset); 570 symbol.sect = symtab_data.GetU16(&offset); 571 symbol.type = symtab_data.GetU16(&offset); 572 symbol.storage = symtab_data.GetU8(&offset); 573 symbol.naux = symtab_data.GetU8(&offset); 574 symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str())); 575 if ((int16_t)symbol.sect >= 1) { 576 Address symbol_addr(sect_list->GetSectionAtIndex(symbol.sect - 1), 577 symbol.value); 578 symbols[i].GetAddressRef() = symbol_addr; 579 symbols[i].SetType(MapSymbolType(symbol.type)); 580 } 581 582 if (symbol.naux > 0) { 583 i += symbol.naux; 584 offset += symbol_size; 585 } 586 } 587 } 588 } 589 590 // Read export header 591 if (coff_data_dir_export_table < m_coff_header_opt.data_dirs.size() && 592 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmsize > 0 && 593 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr > 0) { 594 export_directory_entry export_table; 595 uint32_t data_start = 596 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr; 597 598 uint32_t address_rva = data_start; 599 if (m_file) { 600 Address address(m_coff_header_opt.image_base + data_start, sect_list); 601 address_rva = 602 address.GetSection()->GetFileOffset() + address.GetOffset(); 603 } 604 DataExtractor symtab_data = 605 ReadImageData(address_rva, m_coff_header_opt.data_dirs[0].vmsize); 606 lldb::offset_t offset = 0; 607 608 // Read export_table header 609 export_table.characteristics = symtab_data.GetU32(&offset); 610 export_table.time_date_stamp = symtab_data.GetU32(&offset); 611 export_table.major_version = symtab_data.GetU16(&offset); 612 export_table.minor_version = symtab_data.GetU16(&offset); 613 export_table.name = symtab_data.GetU32(&offset); 614 export_table.base = symtab_data.GetU32(&offset); 615 export_table.number_of_functions = symtab_data.GetU32(&offset); 616 export_table.number_of_names = symtab_data.GetU32(&offset); 617 export_table.address_of_functions = symtab_data.GetU32(&offset); 618 export_table.address_of_names = symtab_data.GetU32(&offset); 619 export_table.address_of_name_ordinals = symtab_data.GetU32(&offset); 620 621 bool has_ordinal = export_table.address_of_name_ordinals != 0; 622 623 lldb::offset_t name_offset = export_table.address_of_names - data_start; 624 lldb::offset_t name_ordinal_offset = 625 export_table.address_of_name_ordinals - data_start; 626 627 Symbol *symbols = m_symtab_ap->Resize(export_table.number_of_names); 628 629 std::string symbol_name; 630 631 // Read each export table entry 632 for (size_t i = 0; i < export_table.number_of_names; ++i) { 633 uint32_t name_ordinal = 634 has_ordinal ? symtab_data.GetU16(&name_ordinal_offset) : i; 635 uint32_t name_address = symtab_data.GetU32(&name_offset); 636 637 const char *symbol_name_cstr = 638 symtab_data.PeekCStr(name_address - data_start); 639 symbol_name.assign(symbol_name_cstr); 640 641 lldb::offset_t function_offset = export_table.address_of_functions - 642 data_start + 643 sizeof(uint32_t) * name_ordinal; 644 uint32_t function_rva = symtab_data.GetU32(&function_offset); 645 646 Address symbol_addr(m_coff_header_opt.image_base + function_rva, 647 sect_list); 648 symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str())); 649 symbols[i].GetAddressRef() = symbol_addr; 650 symbols[i].SetType(lldb::eSymbolTypeCode); 651 symbols[i].SetDebug(true); 652 } 653 } 654 m_symtab_ap->CalculateSymbolSizes(); 655 } 656 } 657 return m_symtab_ap.get(); 658 } 659 660 bool ObjectFilePECOFF::IsStripped() { 661 // TODO: determine this for COFF 662 return false; 663 } 664 665 void ObjectFilePECOFF::CreateSections(SectionList &unified_section_list) { 666 if (!m_sections_ap.get()) { 667 m_sections_ap.reset(new SectionList()); 668 669 ModuleSP module_sp(GetModule()); 670 if (module_sp) { 671 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 672 const uint32_t nsects = m_sect_headers.size(); 673 ModuleSP module_sp(GetModule()); 674 for (uint32_t idx = 0; idx < nsects; ++idx) { 675 std::string sect_name; 676 GetSectionName(sect_name, m_sect_headers[idx]); 677 ConstString const_sect_name(sect_name.c_str()); 678 static ConstString g_code_sect_name(".code"); 679 static ConstString g_CODE_sect_name("CODE"); 680 static ConstString g_data_sect_name(".data"); 681 static ConstString g_DATA_sect_name("DATA"); 682 static ConstString g_bss_sect_name(".bss"); 683 static ConstString g_BSS_sect_name("BSS"); 684 static ConstString g_debug_sect_name(".debug"); 685 static ConstString g_reloc_sect_name(".reloc"); 686 static ConstString g_stab_sect_name(".stab"); 687 static ConstString g_stabstr_sect_name(".stabstr"); 688 static ConstString g_sect_name_dwarf_debug_abbrev(".debug_abbrev"); 689 static ConstString g_sect_name_dwarf_debug_aranges(".debug_aranges"); 690 static ConstString g_sect_name_dwarf_debug_frame(".debug_frame"); 691 static ConstString g_sect_name_dwarf_debug_info(".debug_info"); 692 static ConstString g_sect_name_dwarf_debug_line(".debug_line"); 693 static ConstString g_sect_name_dwarf_debug_loc(".debug_loc"); 694 static ConstString g_sect_name_dwarf_debug_macinfo(".debug_macinfo"); 695 static ConstString g_sect_name_dwarf_debug_pubnames(".debug_pubnames"); 696 static ConstString g_sect_name_dwarf_debug_pubtypes(".debug_pubtypes"); 697 static ConstString g_sect_name_dwarf_debug_ranges(".debug_ranges"); 698 static ConstString g_sect_name_dwarf_debug_str(".debug_str"); 699 static ConstString g_sect_name_dwarf_debug_types(".debug_types"); 700 static ConstString g_sect_name_eh_frame(".eh_frame"); 701 static ConstString g_sect_name_go_symtab(".gosymtab"); 702 SectionType section_type = eSectionTypeOther; 703 if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_CNT_CODE && 704 ((const_sect_name == g_code_sect_name) || 705 (const_sect_name == g_CODE_sect_name))) { 706 section_type = eSectionTypeCode; 707 } else if (m_sect_headers[idx].flags & 708 llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA && 709 ((const_sect_name == g_data_sect_name) || 710 (const_sect_name == g_DATA_sect_name))) { 711 section_type = eSectionTypeData; 712 } else if (m_sect_headers[idx].flags & 713 llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA && 714 ((const_sect_name == g_bss_sect_name) || 715 (const_sect_name == g_BSS_sect_name))) { 716 if (m_sect_headers[idx].size == 0) 717 section_type = eSectionTypeZeroFill; 718 else 719 section_type = eSectionTypeData; 720 } else if (const_sect_name == g_debug_sect_name) { 721 section_type = eSectionTypeDebug; 722 } else if (const_sect_name == g_stabstr_sect_name) { 723 section_type = eSectionTypeDataCString; 724 } else if (const_sect_name == g_reloc_sect_name) { 725 section_type = eSectionTypeOther; 726 } else if (const_sect_name == g_sect_name_dwarf_debug_abbrev) 727 section_type = eSectionTypeDWARFDebugAbbrev; 728 else if (const_sect_name == g_sect_name_dwarf_debug_aranges) 729 section_type = eSectionTypeDWARFDebugAranges; 730 else if (const_sect_name == g_sect_name_dwarf_debug_frame) 731 section_type = eSectionTypeDWARFDebugFrame; 732 else if (const_sect_name == g_sect_name_dwarf_debug_info) 733 section_type = eSectionTypeDWARFDebugInfo; 734 else if (const_sect_name == g_sect_name_dwarf_debug_line) 735 section_type = eSectionTypeDWARFDebugLine; 736 else if (const_sect_name == g_sect_name_dwarf_debug_loc) 737 section_type = eSectionTypeDWARFDebugLoc; 738 else if (const_sect_name == g_sect_name_dwarf_debug_macinfo) 739 section_type = eSectionTypeDWARFDebugMacInfo; 740 else if (const_sect_name == g_sect_name_dwarf_debug_pubnames) 741 section_type = eSectionTypeDWARFDebugPubNames; 742 else if (const_sect_name == g_sect_name_dwarf_debug_pubtypes) 743 section_type = eSectionTypeDWARFDebugPubTypes; 744 else if (const_sect_name == g_sect_name_dwarf_debug_ranges) 745 section_type = eSectionTypeDWARFDebugRanges; 746 else if (const_sect_name == g_sect_name_dwarf_debug_str) 747 section_type = eSectionTypeDWARFDebugStr; 748 else if (const_sect_name == g_sect_name_dwarf_debug_types) 749 section_type = eSectionTypeDWARFDebugTypes; 750 else if (const_sect_name == g_sect_name_eh_frame) 751 section_type = eSectionTypeEHFrame; 752 else if (const_sect_name == g_sect_name_go_symtab) 753 section_type = eSectionTypeGoSymtab; 754 else if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_CNT_CODE) { 755 section_type = eSectionTypeCode; 756 } else if (m_sect_headers[idx].flags & 757 llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA) { 758 section_type = eSectionTypeData; 759 } else if (m_sect_headers[idx].flags & 760 llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA) { 761 if (m_sect_headers[idx].size == 0) 762 section_type = eSectionTypeZeroFill; 763 else 764 section_type = eSectionTypeData; 765 } 766 767 // Use a segment ID of the segment index shifted left by 8 so they 768 // never conflict with any of the sections. 769 SectionSP section_sp(new Section( 770 module_sp, // Module to which this section belongs 771 this, // Object file to which this section belongs 772 idx + 1, // Section ID is the 1 based segment index shifted right by 773 // 8 bits as not to collide with any of the 256 section IDs 774 // that are possible 775 const_sect_name, // Name of this section 776 section_type, // This section is a container of other sections. 777 m_coff_header_opt.image_base + 778 m_sect_headers[idx].vmaddr, // File VM address == addresses as 779 // they are found in the object file 780 m_sect_headers[idx].vmsize, // VM size in bytes of this section 781 m_sect_headers[idx] 782 .offset, // Offset to the data for this section in the file 783 m_sect_headers[idx] 784 .size, // Size in bytes of this section as found in the file 785 m_coff_header_opt.sect_alignment, // Section alignment 786 m_sect_headers[idx].flags)); // Flags for this section 787 788 // section_sp->SetIsEncrypted (segment_is_encrypted); 789 790 unified_section_list.AddSection(section_sp); 791 m_sections_ap->AddSection(section_sp); 792 } 793 } 794 } 795 } 796 797 bool ObjectFilePECOFF::GetUUID(UUID *uuid) { return false; } 798 799 uint32_t ObjectFilePECOFF::GetDependentModules(FileSpecList &files) { 800 return 0; 801 } 802 803 lldb_private::Address ObjectFilePECOFF::GetEntryPointAddress() { 804 if (m_entry_point_address.IsValid()) 805 return m_entry_point_address; 806 807 if (!ParseHeader() || !IsExecutable()) 808 return m_entry_point_address; 809 810 SectionList *section_list = GetSectionList(); 811 addr_t offset = m_coff_header_opt.entry; 812 813 if (!section_list) 814 m_entry_point_address.SetOffset(offset); 815 else 816 m_entry_point_address.ResolveAddressUsingFileSections(offset, section_list); 817 return m_entry_point_address; 818 } 819 820 //---------------------------------------------------------------------- 821 // Dump 822 // 823 // Dump the specifics of the runtime file container (such as any headers 824 // segments, sections, etc). 825 //---------------------------------------------------------------------- 826 void ObjectFilePECOFF::Dump(Stream *s) { 827 ModuleSP module_sp(GetModule()); 828 if (module_sp) { 829 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 830 s->Printf("%p: ", static_cast<void *>(this)); 831 s->Indent(); 832 s->PutCString("ObjectFilePECOFF"); 833 834 ArchSpec header_arch; 835 GetArchitecture(header_arch); 836 837 *s << ", file = '" << m_file 838 << "', arch = " << header_arch.GetArchitectureName() << "\n"; 839 840 SectionList *sections = GetSectionList(); 841 if (sections) 842 sections->Dump(s, NULL, true, UINT32_MAX); 843 844 if (m_symtab_ap.get()) 845 m_symtab_ap->Dump(s, NULL, eSortOrderNone); 846 847 if (m_dos_header.e_magic) 848 DumpDOSHeader(s, m_dos_header); 849 if (m_coff_header.machine) { 850 DumpCOFFHeader(s, m_coff_header); 851 if (m_coff_header.hdrsize) 852 DumpOptCOFFHeader(s, m_coff_header_opt); 853 } 854 s->EOL(); 855 DumpSectionHeaders(s); 856 s->EOL(); 857 } 858 } 859 860 //---------------------------------------------------------------------- 861 // DumpDOSHeader 862 // 863 // Dump the MS-DOS header to the specified output stream 864 //---------------------------------------------------------------------- 865 void ObjectFilePECOFF::DumpDOSHeader(Stream *s, const dos_header_t &header) { 866 s->PutCString("MSDOS Header\n"); 867 s->Printf(" e_magic = 0x%4.4x\n", header.e_magic); 868 s->Printf(" e_cblp = 0x%4.4x\n", header.e_cblp); 869 s->Printf(" e_cp = 0x%4.4x\n", header.e_cp); 870 s->Printf(" e_crlc = 0x%4.4x\n", header.e_crlc); 871 s->Printf(" e_cparhdr = 0x%4.4x\n", header.e_cparhdr); 872 s->Printf(" e_minalloc = 0x%4.4x\n", header.e_minalloc); 873 s->Printf(" e_maxalloc = 0x%4.4x\n", header.e_maxalloc); 874 s->Printf(" e_ss = 0x%4.4x\n", header.e_ss); 875 s->Printf(" e_sp = 0x%4.4x\n", header.e_sp); 876 s->Printf(" e_csum = 0x%4.4x\n", header.e_csum); 877 s->Printf(" e_ip = 0x%4.4x\n", header.e_ip); 878 s->Printf(" e_cs = 0x%4.4x\n", header.e_cs); 879 s->Printf(" e_lfarlc = 0x%4.4x\n", header.e_lfarlc); 880 s->Printf(" e_ovno = 0x%4.4x\n", header.e_ovno); 881 s->Printf(" e_res[4] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 882 header.e_res[0], header.e_res[1], header.e_res[2], header.e_res[3]); 883 s->Printf(" e_oemid = 0x%4.4x\n", header.e_oemid); 884 s->Printf(" e_oeminfo = 0x%4.4x\n", header.e_oeminfo); 885 s->Printf(" e_res2[10] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, " 886 "0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 887 header.e_res2[0], header.e_res2[1], header.e_res2[2], 888 header.e_res2[3], header.e_res2[4], header.e_res2[5], 889 header.e_res2[6], header.e_res2[7], header.e_res2[8], 890 header.e_res2[9]); 891 s->Printf(" e_lfanew = 0x%8.8x\n", header.e_lfanew); 892 } 893 894 //---------------------------------------------------------------------- 895 // DumpCOFFHeader 896 // 897 // Dump the COFF header to the specified output stream 898 //---------------------------------------------------------------------- 899 void ObjectFilePECOFF::DumpCOFFHeader(Stream *s, const coff_header_t &header) { 900 s->PutCString("COFF Header\n"); 901 s->Printf(" machine = 0x%4.4x\n", header.machine); 902 s->Printf(" nsects = 0x%4.4x\n", header.nsects); 903 s->Printf(" modtime = 0x%8.8x\n", header.modtime); 904 s->Printf(" symoff = 0x%8.8x\n", header.symoff); 905 s->Printf(" nsyms = 0x%8.8x\n", header.nsyms); 906 s->Printf(" hdrsize = 0x%4.4x\n", header.hdrsize); 907 } 908 909 //---------------------------------------------------------------------- 910 // DumpOptCOFFHeader 911 // 912 // Dump the optional COFF header to the specified output stream 913 //---------------------------------------------------------------------- 914 void ObjectFilePECOFF::DumpOptCOFFHeader(Stream *s, 915 const coff_opt_header_t &header) { 916 s->PutCString("Optional COFF Header\n"); 917 s->Printf(" magic = 0x%4.4x\n", header.magic); 918 s->Printf(" major_linker_version = 0x%2.2x\n", 919 header.major_linker_version); 920 s->Printf(" minor_linker_version = 0x%2.2x\n", 921 header.minor_linker_version); 922 s->Printf(" code_size = 0x%8.8x\n", header.code_size); 923 s->Printf(" data_size = 0x%8.8x\n", header.data_size); 924 s->Printf(" bss_size = 0x%8.8x\n", header.bss_size); 925 s->Printf(" entry = 0x%8.8x\n", header.entry); 926 s->Printf(" code_offset = 0x%8.8x\n", header.code_offset); 927 s->Printf(" data_offset = 0x%8.8x\n", header.data_offset); 928 s->Printf(" image_base = 0x%16.16" PRIx64 "\n", 929 header.image_base); 930 s->Printf(" sect_alignment = 0x%8.8x\n", header.sect_alignment); 931 s->Printf(" file_alignment = 0x%8.8x\n", header.file_alignment); 932 s->Printf(" major_os_system_version = 0x%4.4x\n", 933 header.major_os_system_version); 934 s->Printf(" minor_os_system_version = 0x%4.4x\n", 935 header.minor_os_system_version); 936 s->Printf(" major_image_version = 0x%4.4x\n", 937 header.major_image_version); 938 s->Printf(" minor_image_version = 0x%4.4x\n", 939 header.minor_image_version); 940 s->Printf(" major_subsystem_version = 0x%4.4x\n", 941 header.major_subsystem_version); 942 s->Printf(" minor_subsystem_version = 0x%4.4x\n", 943 header.minor_subsystem_version); 944 s->Printf(" reserved1 = 0x%8.8x\n", header.reserved1); 945 s->Printf(" image_size = 0x%8.8x\n", header.image_size); 946 s->Printf(" header_size = 0x%8.8x\n", header.header_size); 947 s->Printf(" checksum = 0x%8.8x\n", header.checksum); 948 s->Printf(" subsystem = 0x%4.4x\n", header.subsystem); 949 s->Printf(" dll_flags = 0x%4.4x\n", header.dll_flags); 950 s->Printf(" stack_reserve_size = 0x%16.16" PRIx64 "\n", 951 header.stack_reserve_size); 952 s->Printf(" stack_commit_size = 0x%16.16" PRIx64 "\n", 953 header.stack_commit_size); 954 s->Printf(" heap_reserve_size = 0x%16.16" PRIx64 "\n", 955 header.heap_reserve_size); 956 s->Printf(" heap_commit_size = 0x%16.16" PRIx64 "\n", 957 header.heap_commit_size); 958 s->Printf(" loader_flags = 0x%8.8x\n", header.loader_flags); 959 s->Printf(" num_data_dir_entries = 0x%8.8x\n", 960 (uint32_t)header.data_dirs.size()); 961 uint32_t i; 962 for (i = 0; i < header.data_dirs.size(); i++) { 963 s->Printf(" data_dirs[%2u] vmaddr = 0x%8.8x, vmsize = 0x%8.8x\n", i, 964 header.data_dirs[i].vmaddr, header.data_dirs[i].vmsize); 965 } 966 } 967 //---------------------------------------------------------------------- 968 // DumpSectionHeader 969 // 970 // Dump a single ELF section header to the specified output stream 971 //---------------------------------------------------------------------- 972 void ObjectFilePECOFF::DumpSectionHeader(Stream *s, 973 const section_header_t &sh) { 974 std::string name; 975 GetSectionName(name, sh); 976 s->Printf("%-16s 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%4.4x " 977 "0x%4.4x 0x%8.8x\n", 978 name.c_str(), sh.vmaddr, sh.vmsize, sh.offset, sh.size, sh.reloff, 979 sh.lineoff, sh.nreloc, sh.nline, sh.flags); 980 } 981 982 //---------------------------------------------------------------------- 983 // DumpSectionHeaders 984 // 985 // Dump all of the ELF section header to the specified output stream 986 //---------------------------------------------------------------------- 987 void ObjectFilePECOFF::DumpSectionHeaders(Stream *s) { 988 989 s->PutCString("Section Headers\n"); 990 s->PutCString("IDX name vm addr vm size file off file " 991 "size reloc off line off nreloc nline flags\n"); 992 s->PutCString("==== ---------------- ---------- ---------- ---------- " 993 "---------- ---------- ---------- ------ ------ ----------\n"); 994 995 uint32_t idx = 0; 996 SectionHeaderCollIter pos, end = m_sect_headers.end(); 997 998 for (pos = m_sect_headers.begin(); pos != end; ++pos, ++idx) { 999 s->Printf("[%2u] ", idx); 1000 ObjectFilePECOFF::DumpSectionHeader(s, *pos); 1001 } 1002 } 1003 1004 bool ObjectFilePECOFF::IsWindowsSubsystem() { 1005 switch (m_coff_header_opt.subsystem) { 1006 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE: 1007 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_GUI: 1008 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CUI: 1009 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE_WINDOWS: 1010 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CE_GUI: 1011 case llvm::COFF::IMAGE_SUBSYSTEM_XBOX: 1012 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_BOOT_APPLICATION: 1013 return true; 1014 default: 1015 return false; 1016 } 1017 } 1018 1019 bool ObjectFilePECOFF::GetArchitecture(ArchSpec &arch) { 1020 uint16_t machine = m_coff_header.machine; 1021 switch (machine) { 1022 case llvm::COFF::IMAGE_FILE_MACHINE_AMD64: 1023 case llvm::COFF::IMAGE_FILE_MACHINE_I386: 1024 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPC: 1025 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPCFP: 1026 case llvm::COFF::IMAGE_FILE_MACHINE_ARM: 1027 case llvm::COFF::IMAGE_FILE_MACHINE_ARMNT: 1028 case llvm::COFF::IMAGE_FILE_MACHINE_THUMB: 1029 arch.SetArchitecture(eArchTypeCOFF, machine, LLDB_INVALID_CPUTYPE, 1030 IsWindowsSubsystem() ? llvm::Triple::Win32 1031 : llvm::Triple::UnknownOS); 1032 return true; 1033 default: 1034 break; 1035 } 1036 return false; 1037 } 1038 1039 ObjectFile::Type ObjectFilePECOFF::CalculateType() { 1040 if (m_coff_header.machine != 0) { 1041 if ((m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0) 1042 return eTypeExecutable; 1043 else 1044 return eTypeSharedLibrary; 1045 } 1046 return eTypeExecutable; 1047 } 1048 1049 ObjectFile::Strata ObjectFilePECOFF::CalculateStrata() { return eStrataUser; } 1050 //------------------------------------------------------------------ 1051 // PluginInterface protocol 1052 //------------------------------------------------------------------ 1053 ConstString ObjectFilePECOFF::GetPluginName() { return GetPluginNameStatic(); } 1054 1055 uint32_t ObjectFilePECOFF::GetPluginVersion() { return 1; } 1056