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 "llvm/BinaryFormat/COFF.h" 14 15 #include "lldb/Core/ArchSpec.h" 16 #include "lldb/Core/FileSpecList.h" 17 #include "lldb/Core/Module.h" 18 #include "lldb/Core/ModuleSpec.h" 19 #include "lldb/Core/PluginManager.h" 20 #include "lldb/Core/Section.h" 21 #include "lldb/Core/StreamFile.h" 22 #include "lldb/Symbol/ObjectFile.h" 23 #include "lldb/Target/Process.h" 24 #include "lldb/Target/SectionLoadList.h" 25 #include "lldb/Target/Target.h" 26 #include "lldb/Utility/DataBufferHeap.h" 27 #include "lldb/Utility/DataBufferLLVM.h" 28 #include "lldb/Utility/FileSpec.h" 29 #include "lldb/Utility/StreamString.h" 30 #include "lldb/Utility/Timer.h" 31 #include "lldb/Utility/UUID.h" 32 33 #include "llvm/Support/MemoryBuffer.h" 34 35 #define IMAGE_DOS_SIGNATURE 0x5A4D // MZ 36 #define IMAGE_NT_SIGNATURE 0x00004550 // PE00 37 #define OPT_HEADER_MAGIC_PE32 0x010b 38 #define OPT_HEADER_MAGIC_PE32_PLUS 0x020b 39 40 using namespace lldb; 41 using namespace lldb_private; 42 43 void ObjectFilePECOFF::Initialize() { 44 PluginManager::RegisterPlugin( 45 GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance, 46 CreateMemoryInstance, GetModuleSpecifications, SaveCore); 47 } 48 49 void ObjectFilePECOFF::Terminate() { 50 PluginManager::UnregisterPlugin(CreateInstance); 51 } 52 53 lldb_private::ConstString ObjectFilePECOFF::GetPluginNameStatic() { 54 static ConstString g_name("pe-coff"); 55 return g_name; 56 } 57 58 const char *ObjectFilePECOFF::GetPluginDescriptionStatic() { 59 return "Portable Executable and Common Object File Format object file reader " 60 "(32 and 64 bit)"; 61 } 62 63 ObjectFile *ObjectFilePECOFF::CreateInstance(const lldb::ModuleSP &module_sp, 64 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 if (!data_sp) { 70 data_sp = 71 DataBufferLLVM::CreateSliceFromPath(file->GetPath(), length, file_offset); 72 if (!data_sp) 73 return nullptr; 74 data_offset = 0; 75 } 76 77 if (!ObjectFilePECOFF::MagicBytesMatch(data_sp)) 78 return nullptr; 79 80 // Update the data to contain the entire file if it doesn't already 81 if (data_sp->GetByteSize() < length) { 82 data_sp = 83 DataBufferLLVM::CreateSliceFromPath(file->GetPath(), length, file_offset); 84 if (!data_sp) 85 return nullptr; 86 } 87 88 auto objfile_ap = llvm::make_unique<ObjectFilePECOFF>( 89 module_sp, data_sp, data_offset, file, file_offset, length); 90 if (!objfile_ap || !objfile_ap->ParseHeader()) 91 return nullptr; 92 93 return objfile_ap.release(); 94 } 95 96 ObjectFile *ObjectFilePECOFF::CreateMemoryInstance( 97 const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, 98 const lldb::ProcessSP &process_sp, lldb::addr_t header_addr) { 99 if (!data_sp || !ObjectFilePECOFF::MagicBytesMatch(data_sp)) 100 return nullptr; 101 auto objfile_ap = llvm::make_unique<ObjectFilePECOFF>( 102 module_sp, data_sp, process_sp, header_addr); 103 if (objfile_ap.get() && objfile_ap->ParseHeader()) { 104 return objfile_ap.release(); 105 } 106 return nullptr; 107 } 108 109 size_t ObjectFilePECOFF::GetModuleSpecifications( 110 const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp, 111 lldb::offset_t data_offset, lldb::offset_t file_offset, 112 lldb::offset_t length, lldb_private::ModuleSpecList &specs) { 113 const size_t initial_count = specs.GetSize(); 114 115 if (ObjectFilePECOFF::MagicBytesMatch(data_sp)) { 116 DataExtractor data; 117 data.SetData(data_sp, data_offset, length); 118 data.SetByteOrder(eByteOrderLittle); 119 120 dos_header_t dos_header; 121 coff_header_t coff_header; 122 123 if (ParseDOSHeader(data, dos_header)) { 124 lldb::offset_t offset = dos_header.e_lfanew; 125 uint32_t pe_signature = data.GetU32(&offset); 126 if (pe_signature != IMAGE_NT_SIGNATURE) 127 return false; 128 if (ParseCOFFHeader(data, &offset, coff_header)) { 129 ArchSpec spec; 130 if (coff_header.machine == MachineAmd64) { 131 spec.SetTriple("x86_64-pc-windows"); 132 specs.Append(ModuleSpec(file, spec)); 133 } else if (coff_header.machine == MachineX86) { 134 spec.SetTriple("i386-pc-windows"); 135 specs.Append(ModuleSpec(file, spec)); 136 spec.SetTriple("i686-pc-windows"); 137 specs.Append(ModuleSpec(file, spec)); 138 } 139 else if (coff_header.machine == MachineArmNt) 140 { 141 spec.SetTriple("arm-pc-windows"); 142 specs.Append(ModuleSpec(file, spec)); 143 } 144 } 145 } 146 } 147 148 return specs.GetSize() - initial_count; 149 } 150 151 bool ObjectFilePECOFF::SaveCore(const lldb::ProcessSP &process_sp, 152 const lldb_private::FileSpec &outfile, 153 lldb_private::Status &error) { 154 return SaveMiniDump(process_sp, outfile, error); 155 } 156 157 bool ObjectFilePECOFF::MagicBytesMatch(DataBufferSP &data_sp) { 158 DataExtractor data(data_sp, eByteOrderLittle, 4); 159 lldb::offset_t offset = 0; 160 uint16_t magic = data.GetU16(&offset); 161 return magic == IMAGE_DOS_SIGNATURE; 162 } 163 164 lldb::SymbolType ObjectFilePECOFF::MapSymbolType(uint16_t coff_symbol_type) { 165 // TODO: We need to complete this mapping of COFF symbol types to LLDB ones. 166 // For now, here's a hack to make sure our function have types. 167 const auto complex_type = 168 coff_symbol_type >> llvm::COFF::SCT_COMPLEX_TYPE_SHIFT; 169 if (complex_type == llvm::COFF::IMAGE_SYM_DTYPE_FUNCTION) { 170 return lldb::eSymbolTypeCode; 171 } 172 return lldb::eSymbolTypeInvalid; 173 } 174 175 ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 176 DataBufferSP &data_sp, 177 lldb::offset_t data_offset, 178 const FileSpec *file, 179 lldb::offset_t file_offset, 180 lldb::offset_t length) 181 : ObjectFile(module_sp, file, file_offset, length, data_sp, data_offset), 182 m_dos_header(), m_coff_header(), m_coff_header_opt(), m_sect_headers(), 183 m_entry_point_address() { 184 ::memset(&m_dos_header, 0, sizeof(m_dos_header)); 185 ::memset(&m_coff_header, 0, sizeof(m_coff_header)); 186 ::memset(&m_coff_header_opt, 0, sizeof(m_coff_header_opt)); 187 } 188 189 ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 190 DataBufferSP &header_data_sp, 191 const lldb::ProcessSP &process_sp, 192 addr_t header_addr) 193 : ObjectFile(module_sp, process_sp, header_addr, header_data_sp), 194 m_dos_header(), m_coff_header(), m_coff_header_opt(), m_sect_headers(), 195 m_entry_point_address() { 196 ::memset(&m_dos_header, 0, sizeof(m_dos_header)); 197 ::memset(&m_coff_header, 0, sizeof(m_coff_header)); 198 ::memset(&m_coff_header_opt, 0, sizeof(m_coff_header_opt)); 199 } 200 201 ObjectFilePECOFF::~ObjectFilePECOFF() {} 202 203 bool ObjectFilePECOFF::ParseHeader() { 204 ModuleSP module_sp(GetModule()); 205 if (module_sp) { 206 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 207 m_sect_headers.clear(); 208 m_data.SetByteOrder(eByteOrderLittle); 209 lldb::offset_t offset = 0; 210 211 if (ParseDOSHeader(m_data, m_dos_header)) { 212 offset = m_dos_header.e_lfanew; 213 uint32_t pe_signature = m_data.GetU32(&offset); 214 if (pe_signature != IMAGE_NT_SIGNATURE) 215 return false; 216 if (ParseCOFFHeader(m_data, &offset, m_coff_header)) { 217 if (m_coff_header.hdrsize > 0) 218 ParseCOFFOptionalHeader(&offset); 219 ParseSectionHeaders(offset); 220 } 221 return true; 222 } 223 } 224 return false; 225 } 226 227 bool ObjectFilePECOFF::SetLoadAddress(Target &target, addr_t value, 228 bool value_is_offset) { 229 bool changed = false; 230 ModuleSP module_sp = GetModule(); 231 if (module_sp) { 232 size_t num_loaded_sections = 0; 233 SectionList *section_list = GetSectionList(); 234 if (section_list) { 235 if (!value_is_offset) { 236 value -= m_image_base; 237 } 238 239 const size_t num_sections = section_list->GetSize(); 240 size_t sect_idx = 0; 241 242 for (sect_idx = 0; sect_idx < num_sections; ++sect_idx) { 243 // Iterate through the object file sections to find all 244 // of the sections that have SHF_ALLOC in their flag bits. 245 SectionSP section_sp(section_list->GetSectionAtIndex(sect_idx)); 246 if (section_sp && !section_sp->IsThreadSpecific()) { 247 if (target.GetSectionLoadList().SetSectionLoadAddress( 248 section_sp, section_sp->GetFileAddress() + value)) 249 ++num_loaded_sections; 250 } 251 } 252 changed = num_loaded_sections > 0; 253 } 254 } 255 return changed; 256 } 257 258 ByteOrder ObjectFilePECOFF::GetByteOrder() const { return eByteOrderLittle; } 259 260 bool ObjectFilePECOFF::IsExecutable() const { 261 return (m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0; 262 } 263 264 uint32_t ObjectFilePECOFF::GetAddressByteSize() const { 265 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32_PLUS) 266 return 8; 267 else if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) 268 return 4; 269 return 4; 270 } 271 272 //---------------------------------------------------------------------- 273 // NeedsEndianSwap 274 // 275 // Return true if an endian swap needs to occur when extracting data 276 // from this file. 277 //---------------------------------------------------------------------- 278 bool ObjectFilePECOFF::NeedsEndianSwap() const { 279 #if defined(__LITTLE_ENDIAN__) 280 return false; 281 #else 282 return true; 283 #endif 284 } 285 //---------------------------------------------------------------------- 286 // ParseDOSHeader 287 //---------------------------------------------------------------------- 288 bool ObjectFilePECOFF::ParseDOSHeader(DataExtractor &data, 289 dos_header_t &dos_header) { 290 bool success = false; 291 lldb::offset_t offset = 0; 292 success = data.ValidOffsetForDataOfSize(0, sizeof(dos_header)); 293 294 if (success) { 295 dos_header.e_magic = data.GetU16(&offset); // Magic number 296 success = dos_header.e_magic == IMAGE_DOS_SIGNATURE; 297 298 if (success) { 299 dos_header.e_cblp = data.GetU16(&offset); // Bytes on last page of file 300 dos_header.e_cp = data.GetU16(&offset); // Pages in file 301 dos_header.e_crlc = data.GetU16(&offset); // Relocations 302 dos_header.e_cparhdr = 303 data.GetU16(&offset); // Size of header in paragraphs 304 dos_header.e_minalloc = 305 data.GetU16(&offset); // Minimum extra paragraphs needed 306 dos_header.e_maxalloc = 307 data.GetU16(&offset); // Maximum extra paragraphs needed 308 dos_header.e_ss = data.GetU16(&offset); // Initial (relative) SS value 309 dos_header.e_sp = data.GetU16(&offset); // Initial SP value 310 dos_header.e_csum = data.GetU16(&offset); // Checksum 311 dos_header.e_ip = data.GetU16(&offset); // Initial IP value 312 dos_header.e_cs = data.GetU16(&offset); // Initial (relative) CS value 313 dos_header.e_lfarlc = 314 data.GetU16(&offset); // File address of relocation table 315 dos_header.e_ovno = data.GetU16(&offset); // Overlay number 316 317 dos_header.e_res[0] = data.GetU16(&offset); // Reserved words 318 dos_header.e_res[1] = data.GetU16(&offset); // Reserved words 319 dos_header.e_res[2] = data.GetU16(&offset); // Reserved words 320 dos_header.e_res[3] = data.GetU16(&offset); // Reserved words 321 322 dos_header.e_oemid = 323 data.GetU16(&offset); // OEM identifier (for e_oeminfo) 324 dos_header.e_oeminfo = 325 data.GetU16(&offset); // OEM information; e_oemid specific 326 dos_header.e_res2[0] = data.GetU16(&offset); // Reserved words 327 dos_header.e_res2[1] = data.GetU16(&offset); // Reserved words 328 dos_header.e_res2[2] = data.GetU16(&offset); // Reserved words 329 dos_header.e_res2[3] = data.GetU16(&offset); // Reserved words 330 dos_header.e_res2[4] = data.GetU16(&offset); // Reserved words 331 dos_header.e_res2[5] = data.GetU16(&offset); // Reserved words 332 dos_header.e_res2[6] = data.GetU16(&offset); // Reserved words 333 dos_header.e_res2[7] = data.GetU16(&offset); // Reserved words 334 dos_header.e_res2[8] = data.GetU16(&offset); // Reserved words 335 dos_header.e_res2[9] = data.GetU16(&offset); // Reserved words 336 337 dos_header.e_lfanew = 338 data.GetU32(&offset); // File address of new exe header 339 } 340 } 341 if (!success) 342 memset(&dos_header, 0, sizeof(dos_header)); 343 return success; 344 } 345 346 //---------------------------------------------------------------------- 347 // ParserCOFFHeader 348 //---------------------------------------------------------------------- 349 bool ObjectFilePECOFF::ParseCOFFHeader(DataExtractor &data, 350 lldb::offset_t *offset_ptr, 351 coff_header_t &coff_header) { 352 bool success = 353 data.ValidOffsetForDataOfSize(*offset_ptr, sizeof(coff_header)); 354 if (success) { 355 coff_header.machine = data.GetU16(offset_ptr); 356 coff_header.nsects = data.GetU16(offset_ptr); 357 coff_header.modtime = data.GetU32(offset_ptr); 358 coff_header.symoff = data.GetU32(offset_ptr); 359 coff_header.nsyms = data.GetU32(offset_ptr); 360 coff_header.hdrsize = data.GetU16(offset_ptr); 361 coff_header.flags = data.GetU16(offset_ptr); 362 } 363 if (!success) 364 memset(&coff_header, 0, sizeof(coff_header)); 365 return success; 366 } 367 368 bool ObjectFilePECOFF::ParseCOFFOptionalHeader(lldb::offset_t *offset_ptr) { 369 bool success = false; 370 const lldb::offset_t end_offset = *offset_ptr + m_coff_header.hdrsize; 371 if (*offset_ptr < end_offset) { 372 success = true; 373 m_coff_header_opt.magic = m_data.GetU16(offset_ptr); 374 m_coff_header_opt.major_linker_version = m_data.GetU8(offset_ptr); 375 m_coff_header_opt.minor_linker_version = m_data.GetU8(offset_ptr); 376 m_coff_header_opt.code_size = m_data.GetU32(offset_ptr); 377 m_coff_header_opt.data_size = m_data.GetU32(offset_ptr); 378 m_coff_header_opt.bss_size = m_data.GetU32(offset_ptr); 379 m_coff_header_opt.entry = m_data.GetU32(offset_ptr); 380 m_coff_header_opt.code_offset = m_data.GetU32(offset_ptr); 381 382 const uint32_t addr_byte_size = GetAddressByteSize(); 383 384 if (*offset_ptr < end_offset) { 385 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) { 386 // PE32 only 387 m_coff_header_opt.data_offset = m_data.GetU32(offset_ptr); 388 } else 389 m_coff_header_opt.data_offset = 0; 390 391 if (*offset_ptr < end_offset) { 392 m_coff_header_opt.image_base = 393 m_data.GetMaxU64(offset_ptr, addr_byte_size); 394 m_coff_header_opt.sect_alignment = m_data.GetU32(offset_ptr); 395 m_coff_header_opt.file_alignment = m_data.GetU32(offset_ptr); 396 m_coff_header_opt.major_os_system_version = m_data.GetU16(offset_ptr); 397 m_coff_header_opt.minor_os_system_version = m_data.GetU16(offset_ptr); 398 m_coff_header_opt.major_image_version = m_data.GetU16(offset_ptr); 399 m_coff_header_opt.minor_image_version = m_data.GetU16(offset_ptr); 400 m_coff_header_opt.major_subsystem_version = m_data.GetU16(offset_ptr); 401 m_coff_header_opt.minor_subsystem_version = m_data.GetU16(offset_ptr); 402 m_coff_header_opt.reserved1 = m_data.GetU32(offset_ptr); 403 m_coff_header_opt.image_size = m_data.GetU32(offset_ptr); 404 m_coff_header_opt.header_size = m_data.GetU32(offset_ptr); 405 m_coff_header_opt.checksum = m_data.GetU32(offset_ptr); 406 m_coff_header_opt.subsystem = m_data.GetU16(offset_ptr); 407 m_coff_header_opt.dll_flags = m_data.GetU16(offset_ptr); 408 m_coff_header_opt.stack_reserve_size = 409 m_data.GetMaxU64(offset_ptr, addr_byte_size); 410 m_coff_header_opt.stack_commit_size = 411 m_data.GetMaxU64(offset_ptr, addr_byte_size); 412 m_coff_header_opt.heap_reserve_size = 413 m_data.GetMaxU64(offset_ptr, addr_byte_size); 414 m_coff_header_opt.heap_commit_size = 415 m_data.GetMaxU64(offset_ptr, addr_byte_size); 416 m_coff_header_opt.loader_flags = m_data.GetU32(offset_ptr); 417 uint32_t num_data_dir_entries = m_data.GetU32(offset_ptr); 418 m_coff_header_opt.data_dirs.clear(); 419 m_coff_header_opt.data_dirs.resize(num_data_dir_entries); 420 uint32_t i; 421 for (i = 0; i < num_data_dir_entries; i++) { 422 m_coff_header_opt.data_dirs[i].vmaddr = m_data.GetU32(offset_ptr); 423 m_coff_header_opt.data_dirs[i].vmsize = m_data.GetU32(offset_ptr); 424 } 425 426 m_file_offset = m_coff_header_opt.image_base; 427 m_image_base = m_coff_header_opt.image_base; 428 } 429 } 430 } 431 // Make sure we are on track for section data which follows 432 *offset_ptr = end_offset; 433 return success; 434 } 435 436 DataExtractor ObjectFilePECOFF::ReadImageData(uint32_t offset, size_t size) { 437 if (m_file) { 438 // A bit of a hack, but we intend to write to this buffer, so we can't 439 // mmap it. 440 auto buffer_sp = 441 DataBufferLLVM::CreateSliceFromPath(m_file.GetPath(), size, offset, true); 442 return DataExtractor(buffer_sp, GetByteOrder(), GetAddressByteSize()); 443 } 444 ProcessSP process_sp(m_process_wp.lock()); 445 DataExtractor data; 446 if (process_sp) { 447 auto data_ap = llvm::make_unique<DataBufferHeap>(size, 0); 448 Status readmem_error; 449 size_t bytes_read = 450 process_sp->ReadMemory(m_image_base + offset, data_ap->GetBytes(), 451 data_ap->GetByteSize(), readmem_error); 452 if (bytes_read == size) { 453 DataBufferSP buffer_sp(data_ap.release()); 454 data.SetData(buffer_sp, 0, buffer_sp->GetByteSize()); 455 } 456 } 457 return data; 458 } 459 460 //---------------------------------------------------------------------- 461 // ParseSectionHeaders 462 //---------------------------------------------------------------------- 463 bool ObjectFilePECOFF::ParseSectionHeaders( 464 uint32_t section_header_data_offset) { 465 const uint32_t nsects = m_coff_header.nsects; 466 m_sect_headers.clear(); 467 468 if (nsects > 0) { 469 const size_t section_header_byte_size = nsects * sizeof(section_header_t); 470 DataExtractor section_header_data = 471 ReadImageData(section_header_data_offset, section_header_byte_size); 472 473 lldb::offset_t offset = 0; 474 if (section_header_data.ValidOffsetForDataOfSize( 475 offset, section_header_byte_size)) { 476 m_sect_headers.resize(nsects); 477 478 for (uint32_t idx = 0; idx < nsects; ++idx) { 479 const void *name_data = section_header_data.GetData(&offset, 8); 480 if (name_data) { 481 memcpy(m_sect_headers[idx].name, name_data, 8); 482 m_sect_headers[idx].vmsize = section_header_data.GetU32(&offset); 483 m_sect_headers[idx].vmaddr = section_header_data.GetU32(&offset); 484 m_sect_headers[idx].size = section_header_data.GetU32(&offset); 485 m_sect_headers[idx].offset = section_header_data.GetU32(&offset); 486 m_sect_headers[idx].reloff = section_header_data.GetU32(&offset); 487 m_sect_headers[idx].lineoff = section_header_data.GetU32(&offset); 488 m_sect_headers[idx].nreloc = section_header_data.GetU16(&offset); 489 m_sect_headers[idx].nline = section_header_data.GetU16(&offset); 490 m_sect_headers[idx].flags = section_header_data.GetU32(&offset); 491 } 492 } 493 } 494 } 495 496 return m_sect_headers.empty() == false; 497 } 498 499 bool ObjectFilePECOFF::GetSectionName(std::string §_name, 500 const section_header_t §) { 501 if (sect.name[0] == '/') { 502 lldb::offset_t stroff = strtoul(§.name[1], NULL, 10); 503 lldb::offset_t string_file_offset = 504 m_coff_header.symoff + (m_coff_header.nsyms * 18) + stroff; 505 const char *name = m_data.GetCStr(&string_file_offset); 506 if (name) { 507 sect_name = name; 508 return true; 509 } 510 511 return false; 512 } 513 sect_name = sect.name; 514 return true; 515 } 516 517 //---------------------------------------------------------------------- 518 // GetNListSymtab 519 //---------------------------------------------------------------------- 520 Symtab *ObjectFilePECOFF::GetSymtab() { 521 ModuleSP module_sp(GetModule()); 522 if (module_sp) { 523 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 524 if (m_symtab_ap.get() == NULL) { 525 SectionList *sect_list = GetSectionList(); 526 m_symtab_ap.reset(new Symtab(this)); 527 std::lock_guard<std::recursive_mutex> guard(m_symtab_ap->GetMutex()); 528 529 const uint32_t num_syms = m_coff_header.nsyms; 530 531 if (m_file && num_syms > 0 && m_coff_header.symoff > 0) { 532 const uint32_t symbol_size = 18; 533 const size_t symbol_data_size = num_syms * symbol_size; 534 // Include the 4-byte string table size at the end of the symbols 535 DataExtractor symtab_data = 536 ReadImageData(m_coff_header.symoff, symbol_data_size + 4); 537 lldb::offset_t offset = symbol_data_size; 538 const uint32_t strtab_size = symtab_data.GetU32(&offset); 539 if (strtab_size > 0) { 540 DataExtractor strtab_data = ReadImageData( 541 m_coff_header.symoff + symbol_data_size, strtab_size); 542 543 // First 4 bytes should be zeroed after strtab_size has been read, 544 // because it is used as offset 0 to encode a NULL string. 545 uint32_t *strtab_data_start = const_cast<uint32_t *>( 546 reinterpret_cast<const uint32_t *>(strtab_data.GetDataStart())); 547 strtab_data_start[0] = 0; 548 549 offset = 0; 550 std::string symbol_name; 551 Symbol *symbols = m_symtab_ap->Resize(num_syms); 552 for (uint32_t i = 0; i < num_syms; ++i) { 553 coff_symbol_t symbol; 554 const uint32_t symbol_offset = offset; 555 const char *symbol_name_cstr = NULL; 556 // If the first 4 bytes of the symbol string are zero, then they 557 // are followed by a 4-byte string table offset. Else these 558 // 8 bytes contain the symbol name 559 if (symtab_data.GetU32(&offset) == 0) { 560 // Long string that doesn't fit into the symbol table name, 561 // so now we must read the 4 byte string table offset 562 uint32_t strtab_offset = symtab_data.GetU32(&offset); 563 symbol_name_cstr = strtab_data.PeekCStr(strtab_offset); 564 symbol_name.assign(symbol_name_cstr); 565 } else { 566 // Short string that fits into the symbol table name which is 8 567 // bytes 568 offset += sizeof(symbol.name) - 4; // Skip remaining 569 symbol_name_cstr = symtab_data.PeekCStr(symbol_offset); 570 if (symbol_name_cstr == NULL) 571 break; 572 symbol_name.assign(symbol_name_cstr, sizeof(symbol.name)); 573 } 574 symbol.value = symtab_data.GetU32(&offset); 575 symbol.sect = symtab_data.GetU16(&offset); 576 symbol.type = symtab_data.GetU16(&offset); 577 symbol.storage = symtab_data.GetU8(&offset); 578 symbol.naux = symtab_data.GetU8(&offset); 579 symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str())); 580 if ((int16_t)symbol.sect >= 1) { 581 Address symbol_addr(sect_list->GetSectionAtIndex(symbol.sect - 1), 582 symbol.value); 583 symbols[i].GetAddressRef() = symbol_addr; 584 symbols[i].SetType(MapSymbolType(symbol.type)); 585 } 586 587 if (symbol.naux > 0) { 588 i += symbol.naux; 589 offset += symbol_size; 590 } 591 } 592 } 593 } 594 595 // Read export header 596 if (coff_data_dir_export_table < m_coff_header_opt.data_dirs.size() && 597 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmsize > 0 && 598 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr > 0) { 599 export_directory_entry export_table; 600 uint32_t data_start = 601 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr; 602 603 uint32_t address_rva = data_start; 604 if (m_file) { 605 Address address(m_coff_header_opt.image_base + data_start, sect_list); 606 address_rva = 607 address.GetSection()->GetFileOffset() + address.GetOffset(); 608 } 609 DataExtractor symtab_data = 610 ReadImageData(address_rva, m_coff_header_opt.data_dirs[0].vmsize); 611 lldb::offset_t offset = 0; 612 613 // Read export_table header 614 export_table.characteristics = symtab_data.GetU32(&offset); 615 export_table.time_date_stamp = symtab_data.GetU32(&offset); 616 export_table.major_version = symtab_data.GetU16(&offset); 617 export_table.minor_version = symtab_data.GetU16(&offset); 618 export_table.name = symtab_data.GetU32(&offset); 619 export_table.base = symtab_data.GetU32(&offset); 620 export_table.number_of_functions = symtab_data.GetU32(&offset); 621 export_table.number_of_names = symtab_data.GetU32(&offset); 622 export_table.address_of_functions = symtab_data.GetU32(&offset); 623 export_table.address_of_names = symtab_data.GetU32(&offset); 624 export_table.address_of_name_ordinals = symtab_data.GetU32(&offset); 625 626 bool has_ordinal = export_table.address_of_name_ordinals != 0; 627 628 lldb::offset_t name_offset = export_table.address_of_names - data_start; 629 lldb::offset_t name_ordinal_offset = 630 export_table.address_of_name_ordinals - data_start; 631 632 Symbol *symbols = m_symtab_ap->Resize(export_table.number_of_names); 633 634 std::string symbol_name; 635 636 // Read each export table entry 637 for (size_t i = 0; i < export_table.number_of_names; ++i) { 638 uint32_t name_ordinal = 639 has_ordinal ? symtab_data.GetU16(&name_ordinal_offset) : i; 640 uint32_t name_address = symtab_data.GetU32(&name_offset); 641 642 const char *symbol_name_cstr = 643 symtab_data.PeekCStr(name_address - data_start); 644 symbol_name.assign(symbol_name_cstr); 645 646 lldb::offset_t function_offset = export_table.address_of_functions - 647 data_start + 648 sizeof(uint32_t) * name_ordinal; 649 uint32_t function_rva = symtab_data.GetU32(&function_offset); 650 651 Address symbol_addr(m_coff_header_opt.image_base + function_rva, 652 sect_list); 653 symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str())); 654 symbols[i].GetAddressRef() = symbol_addr; 655 symbols[i].SetType(lldb::eSymbolTypeCode); 656 symbols[i].SetDebug(true); 657 } 658 } 659 m_symtab_ap->CalculateSymbolSizes(); 660 } 661 } 662 return m_symtab_ap.get(); 663 } 664 665 bool ObjectFilePECOFF::IsStripped() { 666 // TODO: determine this for COFF 667 return false; 668 } 669 670 void ObjectFilePECOFF::CreateSections(SectionList &unified_section_list) { 671 if (!m_sections_ap.get()) { 672 m_sections_ap.reset(new SectionList()); 673 674 ModuleSP module_sp(GetModule()); 675 if (module_sp) { 676 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 677 const uint32_t nsects = m_sect_headers.size(); 678 ModuleSP module_sp(GetModule()); 679 for (uint32_t idx = 0; idx < nsects; ++idx) { 680 std::string sect_name; 681 GetSectionName(sect_name, m_sect_headers[idx]); 682 ConstString const_sect_name(sect_name.c_str()); 683 static ConstString g_code_sect_name(".code"); 684 static ConstString g_CODE_sect_name("CODE"); 685 static ConstString g_data_sect_name(".data"); 686 static ConstString g_DATA_sect_name("DATA"); 687 static ConstString g_bss_sect_name(".bss"); 688 static ConstString g_BSS_sect_name("BSS"); 689 static ConstString g_debug_sect_name(".debug"); 690 static ConstString g_reloc_sect_name(".reloc"); 691 static ConstString g_stab_sect_name(".stab"); 692 static ConstString g_stabstr_sect_name(".stabstr"); 693 static ConstString g_sect_name_dwarf_debug_abbrev(".debug_abbrev"); 694 static ConstString g_sect_name_dwarf_debug_aranges(".debug_aranges"); 695 static ConstString g_sect_name_dwarf_debug_frame(".debug_frame"); 696 static ConstString g_sect_name_dwarf_debug_info(".debug_info"); 697 static ConstString g_sect_name_dwarf_debug_line(".debug_line"); 698 static ConstString g_sect_name_dwarf_debug_loc(".debug_loc"); 699 static ConstString g_sect_name_dwarf_debug_macinfo(".debug_macinfo"); 700 static ConstString g_sect_name_dwarf_debug_pubnames(".debug_pubnames"); 701 static ConstString g_sect_name_dwarf_debug_pubtypes(".debug_pubtypes"); 702 static ConstString g_sect_name_dwarf_debug_ranges(".debug_ranges"); 703 static ConstString g_sect_name_dwarf_debug_str(".debug_str"); 704 static ConstString g_sect_name_eh_frame(".eh_frame"); 705 static ConstString g_sect_name_go_symtab(".gosymtab"); 706 SectionType section_type = eSectionTypeOther; 707 if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_CNT_CODE && 708 ((const_sect_name == g_code_sect_name) || 709 (const_sect_name == g_CODE_sect_name))) { 710 section_type = eSectionTypeCode; 711 } else if (m_sect_headers[idx].flags & 712 llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA && 713 ((const_sect_name == g_data_sect_name) || 714 (const_sect_name == g_DATA_sect_name))) { 715 section_type = eSectionTypeData; 716 } else if (m_sect_headers[idx].flags & 717 llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA && 718 ((const_sect_name == g_bss_sect_name) || 719 (const_sect_name == g_BSS_sect_name))) { 720 if (m_sect_headers[idx].size == 0) 721 section_type = eSectionTypeZeroFill; 722 else 723 section_type = eSectionTypeData; 724 } else if (const_sect_name == g_debug_sect_name) { 725 section_type = eSectionTypeDebug; 726 } else if (const_sect_name == g_stabstr_sect_name) { 727 section_type = eSectionTypeDataCString; 728 } else if (const_sect_name == g_reloc_sect_name) { 729 section_type = eSectionTypeOther; 730 } else if (const_sect_name == g_sect_name_dwarf_debug_abbrev) 731 section_type = eSectionTypeDWARFDebugAbbrev; 732 else if (const_sect_name == g_sect_name_dwarf_debug_aranges) 733 section_type = eSectionTypeDWARFDebugAranges; 734 else if (const_sect_name == g_sect_name_dwarf_debug_frame) 735 section_type = eSectionTypeDWARFDebugFrame; 736 else if (const_sect_name == g_sect_name_dwarf_debug_info) 737 section_type = eSectionTypeDWARFDebugInfo; 738 else if (const_sect_name == g_sect_name_dwarf_debug_line) 739 section_type = eSectionTypeDWARFDebugLine; 740 else if (const_sect_name == g_sect_name_dwarf_debug_loc) 741 section_type = eSectionTypeDWARFDebugLoc; 742 else if (const_sect_name == g_sect_name_dwarf_debug_macinfo) 743 section_type = eSectionTypeDWARFDebugMacInfo; 744 else if (const_sect_name == g_sect_name_dwarf_debug_pubnames) 745 section_type = eSectionTypeDWARFDebugPubNames; 746 else if (const_sect_name == g_sect_name_dwarf_debug_pubtypes) 747 section_type = eSectionTypeDWARFDebugPubTypes; 748 else if (const_sect_name == g_sect_name_dwarf_debug_ranges) 749 section_type = eSectionTypeDWARFDebugRanges; 750 else if (const_sect_name == g_sect_name_dwarf_debug_str) 751 section_type = eSectionTypeDWARFDebugStr; 752 else if (const_sect_name == g_sect_name_eh_frame) 753 section_type = eSectionTypeEHFrame; 754 else if (const_sect_name == g_sect_name_go_symtab) 755 section_type = eSectionTypeGoSymtab; 756 else if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_CNT_CODE) { 757 section_type = eSectionTypeCode; 758 } else if (m_sect_headers[idx].flags & 759 llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA) { 760 section_type = eSectionTypeData; 761 } else if (m_sect_headers[idx].flags & 762 llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA) { 763 if (m_sect_headers[idx].size == 0) 764 section_type = eSectionTypeZeroFill; 765 else 766 section_type = eSectionTypeData; 767 } 768 769 // Use a segment ID of the segment index shifted left by 8 so they 770 // never conflict with any of the sections. 771 SectionSP section_sp(new Section( 772 module_sp, // Module to which this section belongs 773 this, // Object file to which this section belongs 774 idx + 1, // Section ID is the 1 based segment index shifted right by 775 // 8 bits as not to collide with any of the 256 section IDs 776 // that are possible 777 const_sect_name, // Name of this section 778 section_type, // This section is a container of other sections. 779 m_coff_header_opt.image_base + 780 m_sect_headers[idx].vmaddr, // File VM address == addresses as 781 // they are found in the object file 782 m_sect_headers[idx].vmsize, // VM size in bytes of this section 783 m_sect_headers[idx] 784 .offset, // Offset to the data for this section in the file 785 m_sect_headers[idx] 786 .size, // Size in bytes of this section as found in the file 787 m_coff_header_opt.sect_alignment, // Section alignment 788 m_sect_headers[idx].flags)); // Flags for this section 789 790 // section_sp->SetIsEncrypted (segment_is_encrypted); 791 792 unified_section_list.AddSection(section_sp); 793 m_sections_ap->AddSection(section_sp); 794 } 795 } 796 } 797 } 798 799 bool ObjectFilePECOFF::GetUUID(UUID *uuid) { return false; } 800 801 uint32_t ObjectFilePECOFF::GetDependentModules(FileSpecList &files) { 802 return 0; 803 } 804 805 lldb_private::Address ObjectFilePECOFF::GetEntryPointAddress() { 806 if (m_entry_point_address.IsValid()) 807 return m_entry_point_address; 808 809 if (!ParseHeader() || !IsExecutable()) 810 return m_entry_point_address; 811 812 SectionList *section_list = GetSectionList(); 813 addr_t offset = m_coff_header_opt.entry; 814 815 if (!section_list) 816 m_entry_point_address.SetOffset(offset); 817 else 818 m_entry_point_address.ResolveAddressUsingFileSections(offset, section_list); 819 return m_entry_point_address; 820 } 821 822 //---------------------------------------------------------------------- 823 // Dump 824 // 825 // Dump the specifics of the runtime file container (such as any headers 826 // segments, sections, etc). 827 //---------------------------------------------------------------------- 828 void ObjectFilePECOFF::Dump(Stream *s) { 829 ModuleSP module_sp(GetModule()); 830 if (module_sp) { 831 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 832 s->Printf("%p: ", static_cast<void *>(this)); 833 s->Indent(); 834 s->PutCString("ObjectFilePECOFF"); 835 836 ArchSpec header_arch; 837 GetArchitecture(header_arch); 838 839 *s << ", file = '" << m_file 840 << "', arch = " << header_arch.GetArchitectureName() << "\n"; 841 842 SectionList *sections = GetSectionList(); 843 if (sections) 844 sections->Dump(s, NULL, true, UINT32_MAX); 845 846 if (m_symtab_ap.get()) 847 m_symtab_ap->Dump(s, NULL, eSortOrderNone); 848 849 if (m_dos_header.e_magic) 850 DumpDOSHeader(s, m_dos_header); 851 if (m_coff_header.machine) { 852 DumpCOFFHeader(s, m_coff_header); 853 if (m_coff_header.hdrsize) 854 DumpOptCOFFHeader(s, m_coff_header_opt); 855 } 856 s->EOL(); 857 DumpSectionHeaders(s); 858 s->EOL(); 859 } 860 } 861 862 //---------------------------------------------------------------------- 863 // DumpDOSHeader 864 // 865 // Dump the MS-DOS header to the specified output stream 866 //---------------------------------------------------------------------- 867 void ObjectFilePECOFF::DumpDOSHeader(Stream *s, const dos_header_t &header) { 868 s->PutCString("MSDOS Header\n"); 869 s->Printf(" e_magic = 0x%4.4x\n", header.e_magic); 870 s->Printf(" e_cblp = 0x%4.4x\n", header.e_cblp); 871 s->Printf(" e_cp = 0x%4.4x\n", header.e_cp); 872 s->Printf(" e_crlc = 0x%4.4x\n", header.e_crlc); 873 s->Printf(" e_cparhdr = 0x%4.4x\n", header.e_cparhdr); 874 s->Printf(" e_minalloc = 0x%4.4x\n", header.e_minalloc); 875 s->Printf(" e_maxalloc = 0x%4.4x\n", header.e_maxalloc); 876 s->Printf(" e_ss = 0x%4.4x\n", header.e_ss); 877 s->Printf(" e_sp = 0x%4.4x\n", header.e_sp); 878 s->Printf(" e_csum = 0x%4.4x\n", header.e_csum); 879 s->Printf(" e_ip = 0x%4.4x\n", header.e_ip); 880 s->Printf(" e_cs = 0x%4.4x\n", header.e_cs); 881 s->Printf(" e_lfarlc = 0x%4.4x\n", header.e_lfarlc); 882 s->Printf(" e_ovno = 0x%4.4x\n", header.e_ovno); 883 s->Printf(" e_res[4] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 884 header.e_res[0], header.e_res[1], header.e_res[2], header.e_res[3]); 885 s->Printf(" e_oemid = 0x%4.4x\n", header.e_oemid); 886 s->Printf(" e_oeminfo = 0x%4.4x\n", header.e_oeminfo); 887 s->Printf(" e_res2[10] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, " 888 "0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 889 header.e_res2[0], header.e_res2[1], header.e_res2[2], 890 header.e_res2[3], header.e_res2[4], header.e_res2[5], 891 header.e_res2[6], header.e_res2[7], header.e_res2[8], 892 header.e_res2[9]); 893 s->Printf(" e_lfanew = 0x%8.8x\n", header.e_lfanew); 894 } 895 896 //---------------------------------------------------------------------- 897 // DumpCOFFHeader 898 // 899 // Dump the COFF header to the specified output stream 900 //---------------------------------------------------------------------- 901 void ObjectFilePECOFF::DumpCOFFHeader(Stream *s, const coff_header_t &header) { 902 s->PutCString("COFF Header\n"); 903 s->Printf(" machine = 0x%4.4x\n", header.machine); 904 s->Printf(" nsects = 0x%4.4x\n", header.nsects); 905 s->Printf(" modtime = 0x%8.8x\n", header.modtime); 906 s->Printf(" symoff = 0x%8.8x\n", header.symoff); 907 s->Printf(" nsyms = 0x%8.8x\n", header.nsyms); 908 s->Printf(" hdrsize = 0x%4.4x\n", header.hdrsize); 909 } 910 911 //---------------------------------------------------------------------- 912 // DumpOptCOFFHeader 913 // 914 // Dump the optional COFF header to the specified output stream 915 //---------------------------------------------------------------------- 916 void ObjectFilePECOFF::DumpOptCOFFHeader(Stream *s, 917 const coff_opt_header_t &header) { 918 s->PutCString("Optional COFF Header\n"); 919 s->Printf(" magic = 0x%4.4x\n", header.magic); 920 s->Printf(" major_linker_version = 0x%2.2x\n", 921 header.major_linker_version); 922 s->Printf(" minor_linker_version = 0x%2.2x\n", 923 header.minor_linker_version); 924 s->Printf(" code_size = 0x%8.8x\n", header.code_size); 925 s->Printf(" data_size = 0x%8.8x\n", header.data_size); 926 s->Printf(" bss_size = 0x%8.8x\n", header.bss_size); 927 s->Printf(" entry = 0x%8.8x\n", header.entry); 928 s->Printf(" code_offset = 0x%8.8x\n", header.code_offset); 929 s->Printf(" data_offset = 0x%8.8x\n", header.data_offset); 930 s->Printf(" image_base = 0x%16.16" PRIx64 "\n", 931 header.image_base); 932 s->Printf(" sect_alignment = 0x%8.8x\n", header.sect_alignment); 933 s->Printf(" file_alignment = 0x%8.8x\n", header.file_alignment); 934 s->Printf(" major_os_system_version = 0x%4.4x\n", 935 header.major_os_system_version); 936 s->Printf(" minor_os_system_version = 0x%4.4x\n", 937 header.minor_os_system_version); 938 s->Printf(" major_image_version = 0x%4.4x\n", 939 header.major_image_version); 940 s->Printf(" minor_image_version = 0x%4.4x\n", 941 header.minor_image_version); 942 s->Printf(" major_subsystem_version = 0x%4.4x\n", 943 header.major_subsystem_version); 944 s->Printf(" minor_subsystem_version = 0x%4.4x\n", 945 header.minor_subsystem_version); 946 s->Printf(" reserved1 = 0x%8.8x\n", header.reserved1); 947 s->Printf(" image_size = 0x%8.8x\n", header.image_size); 948 s->Printf(" header_size = 0x%8.8x\n", header.header_size); 949 s->Printf(" checksum = 0x%8.8x\n", header.checksum); 950 s->Printf(" subsystem = 0x%4.4x\n", header.subsystem); 951 s->Printf(" dll_flags = 0x%4.4x\n", header.dll_flags); 952 s->Printf(" stack_reserve_size = 0x%16.16" PRIx64 "\n", 953 header.stack_reserve_size); 954 s->Printf(" stack_commit_size = 0x%16.16" PRIx64 "\n", 955 header.stack_commit_size); 956 s->Printf(" heap_reserve_size = 0x%16.16" PRIx64 "\n", 957 header.heap_reserve_size); 958 s->Printf(" heap_commit_size = 0x%16.16" PRIx64 "\n", 959 header.heap_commit_size); 960 s->Printf(" loader_flags = 0x%8.8x\n", header.loader_flags); 961 s->Printf(" num_data_dir_entries = 0x%8.8x\n", 962 (uint32_t)header.data_dirs.size()); 963 uint32_t i; 964 for (i = 0; i < header.data_dirs.size(); i++) { 965 s->Printf(" data_dirs[%2u] vmaddr = 0x%8.8x, vmsize = 0x%8.8x\n", i, 966 header.data_dirs[i].vmaddr, header.data_dirs[i].vmsize); 967 } 968 } 969 //---------------------------------------------------------------------- 970 // DumpSectionHeader 971 // 972 // Dump a single ELF section header to the specified output stream 973 //---------------------------------------------------------------------- 974 void ObjectFilePECOFF::DumpSectionHeader(Stream *s, 975 const section_header_t &sh) { 976 std::string name; 977 GetSectionName(name, sh); 978 s->Printf("%-16s 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%4.4x " 979 "0x%4.4x 0x%8.8x\n", 980 name.c_str(), sh.vmaddr, sh.vmsize, sh.offset, sh.size, sh.reloff, 981 sh.lineoff, sh.nreloc, sh.nline, sh.flags); 982 } 983 984 //---------------------------------------------------------------------- 985 // DumpSectionHeaders 986 // 987 // Dump all of the ELF section header to the specified output stream 988 //---------------------------------------------------------------------- 989 void ObjectFilePECOFF::DumpSectionHeaders(Stream *s) { 990 991 s->PutCString("Section Headers\n"); 992 s->PutCString("IDX name vm addr vm size file off file " 993 "size reloc off line off nreloc nline flags\n"); 994 s->PutCString("==== ---------------- ---------- ---------- ---------- " 995 "---------- ---------- ---------- ------ ------ ----------\n"); 996 997 uint32_t idx = 0; 998 SectionHeaderCollIter pos, end = m_sect_headers.end(); 999 1000 for (pos = m_sect_headers.begin(); pos != end; ++pos, ++idx) { 1001 s->Printf("[%2u] ", idx); 1002 ObjectFilePECOFF::DumpSectionHeader(s, *pos); 1003 } 1004 } 1005 1006 bool ObjectFilePECOFF::IsWindowsSubsystem() { 1007 switch (m_coff_header_opt.subsystem) { 1008 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE: 1009 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_GUI: 1010 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CUI: 1011 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE_WINDOWS: 1012 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CE_GUI: 1013 case llvm::COFF::IMAGE_SUBSYSTEM_XBOX: 1014 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_BOOT_APPLICATION: 1015 return true; 1016 default: 1017 return false; 1018 } 1019 } 1020 1021 bool ObjectFilePECOFF::GetArchitecture(ArchSpec &arch) { 1022 uint16_t machine = m_coff_header.machine; 1023 switch (machine) { 1024 case llvm::COFF::IMAGE_FILE_MACHINE_AMD64: 1025 case llvm::COFF::IMAGE_FILE_MACHINE_I386: 1026 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPC: 1027 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPCFP: 1028 case llvm::COFF::IMAGE_FILE_MACHINE_ARM: 1029 case llvm::COFF::IMAGE_FILE_MACHINE_ARMNT: 1030 case llvm::COFF::IMAGE_FILE_MACHINE_THUMB: 1031 arch.SetArchitecture(eArchTypeCOFF, machine, LLDB_INVALID_CPUTYPE, 1032 IsWindowsSubsystem() ? llvm::Triple::Win32 1033 : llvm::Triple::UnknownOS); 1034 return true; 1035 default: 1036 break; 1037 } 1038 return false; 1039 } 1040 1041 ObjectFile::Type ObjectFilePECOFF::CalculateType() { 1042 if (m_coff_header.machine != 0) { 1043 if ((m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0) 1044 return eTypeExecutable; 1045 else 1046 return eTypeSharedLibrary; 1047 } 1048 return eTypeExecutable; 1049 } 1050 1051 ObjectFile::Strata ObjectFilePECOFF::CalculateStrata() { return eStrataUser; } 1052 //------------------------------------------------------------------ 1053 // PluginInterface protocol 1054 //------------------------------------------------------------------ 1055 ConstString ObjectFilePECOFF::GetPluginName() { return GetPluginNameStatic(); } 1056 1057 uint32_t ObjectFilePECOFF::GetPluginVersion() { return 1; } 1058