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 240 // of the sections 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 272 // from this 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, 556 // so 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_eh_frame(".eh_frame"); 700 static ConstString g_sect_name_go_symtab(".gosymtab"); 701 SectionType section_type = eSectionTypeOther; 702 if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_CNT_CODE && 703 ((const_sect_name == g_code_sect_name) || 704 (const_sect_name == g_CODE_sect_name))) { 705 section_type = eSectionTypeCode; 706 } else if (m_sect_headers[idx].flags & 707 llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA && 708 ((const_sect_name == g_data_sect_name) || 709 (const_sect_name == g_DATA_sect_name))) { 710 section_type = eSectionTypeData; 711 } else if (m_sect_headers[idx].flags & 712 llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA && 713 ((const_sect_name == g_bss_sect_name) || 714 (const_sect_name == g_BSS_sect_name))) { 715 if (m_sect_headers[idx].size == 0) 716 section_type = eSectionTypeZeroFill; 717 else 718 section_type = eSectionTypeData; 719 } else if (const_sect_name == g_debug_sect_name) { 720 section_type = eSectionTypeDebug; 721 } else if (const_sect_name == g_stabstr_sect_name) { 722 section_type = eSectionTypeDataCString; 723 } else if (const_sect_name == g_reloc_sect_name) { 724 section_type = eSectionTypeOther; 725 } else if (const_sect_name == g_sect_name_dwarf_debug_abbrev) 726 section_type = eSectionTypeDWARFDebugAbbrev; 727 else if (const_sect_name == g_sect_name_dwarf_debug_aranges) 728 section_type = eSectionTypeDWARFDebugAranges; 729 else if (const_sect_name == g_sect_name_dwarf_debug_frame) 730 section_type = eSectionTypeDWARFDebugFrame; 731 else if (const_sect_name == g_sect_name_dwarf_debug_info) 732 section_type = eSectionTypeDWARFDebugInfo; 733 else if (const_sect_name == g_sect_name_dwarf_debug_line) 734 section_type = eSectionTypeDWARFDebugLine; 735 else if (const_sect_name == g_sect_name_dwarf_debug_loc) 736 section_type = eSectionTypeDWARFDebugLoc; 737 else if (const_sect_name == g_sect_name_dwarf_debug_macinfo) 738 section_type = eSectionTypeDWARFDebugMacInfo; 739 else if (const_sect_name == g_sect_name_dwarf_debug_pubnames) 740 section_type = eSectionTypeDWARFDebugPubNames; 741 else if (const_sect_name == g_sect_name_dwarf_debug_pubtypes) 742 section_type = eSectionTypeDWARFDebugPubTypes; 743 else if (const_sect_name == g_sect_name_dwarf_debug_ranges) 744 section_type = eSectionTypeDWARFDebugRanges; 745 else if (const_sect_name == g_sect_name_dwarf_debug_str) 746 section_type = eSectionTypeDWARFDebugStr; 747 else if (const_sect_name == g_sect_name_eh_frame) 748 section_type = eSectionTypeEHFrame; 749 else if (const_sect_name == g_sect_name_go_symtab) 750 section_type = eSectionTypeGoSymtab; 751 else if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_CNT_CODE) { 752 section_type = eSectionTypeCode; 753 } else if (m_sect_headers[idx].flags & 754 llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA) { 755 section_type = eSectionTypeData; 756 } else if (m_sect_headers[idx].flags & 757 llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA) { 758 if (m_sect_headers[idx].size == 0) 759 section_type = eSectionTypeZeroFill; 760 else 761 section_type = eSectionTypeData; 762 } 763 764 // Use a segment ID of the segment index shifted left by 8 so they 765 // never conflict with any of the sections. 766 SectionSP section_sp(new Section( 767 module_sp, // Module to which this section belongs 768 this, // Object file to which this section belongs 769 idx + 1, // Section ID is the 1 based segment index shifted right by 770 // 8 bits as not to collide with any of the 256 section IDs 771 // that are possible 772 const_sect_name, // Name of this section 773 section_type, // This section is a container of other sections. 774 m_coff_header_opt.image_base + 775 m_sect_headers[idx].vmaddr, // File VM address == addresses as 776 // they are found in the object file 777 m_sect_headers[idx].vmsize, // VM size in bytes of this section 778 m_sect_headers[idx] 779 .offset, // Offset to the data for this section in the file 780 m_sect_headers[idx] 781 .size, // Size in bytes of this section as found in the file 782 m_coff_header_opt.sect_alignment, // Section alignment 783 m_sect_headers[idx].flags)); // Flags for this section 784 785 // section_sp->SetIsEncrypted (segment_is_encrypted); 786 787 unified_section_list.AddSection(section_sp); 788 m_sections_ap->AddSection(section_sp); 789 } 790 } 791 } 792 } 793 794 bool ObjectFilePECOFF::GetUUID(UUID *uuid) { return false; } 795 796 uint32_t ObjectFilePECOFF::GetDependentModules(FileSpecList &files) { 797 return 0; 798 } 799 800 lldb_private::Address ObjectFilePECOFF::GetEntryPointAddress() { 801 if (m_entry_point_address.IsValid()) 802 return m_entry_point_address; 803 804 if (!ParseHeader() || !IsExecutable()) 805 return m_entry_point_address; 806 807 SectionList *section_list = GetSectionList(); 808 addr_t offset = m_coff_header_opt.entry; 809 810 if (!section_list) 811 m_entry_point_address.SetOffset(offset); 812 else 813 m_entry_point_address.ResolveAddressUsingFileSections(offset, section_list); 814 return m_entry_point_address; 815 } 816 817 //---------------------------------------------------------------------- 818 // Dump 819 // 820 // Dump the specifics of the runtime file container (such as any headers 821 // segments, sections, etc). 822 //---------------------------------------------------------------------- 823 void ObjectFilePECOFF::Dump(Stream *s) { 824 ModuleSP module_sp(GetModule()); 825 if (module_sp) { 826 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 827 s->Printf("%p: ", static_cast<void *>(this)); 828 s->Indent(); 829 s->PutCString("ObjectFilePECOFF"); 830 831 ArchSpec header_arch; 832 GetArchitecture(header_arch); 833 834 *s << ", file = '" << m_file 835 << "', arch = " << header_arch.GetArchitectureName() << "\n"; 836 837 SectionList *sections = GetSectionList(); 838 if (sections) 839 sections->Dump(s, NULL, true, UINT32_MAX); 840 841 if (m_symtab_ap.get()) 842 m_symtab_ap->Dump(s, NULL, eSortOrderNone); 843 844 if (m_dos_header.e_magic) 845 DumpDOSHeader(s, m_dos_header); 846 if (m_coff_header.machine) { 847 DumpCOFFHeader(s, m_coff_header); 848 if (m_coff_header.hdrsize) 849 DumpOptCOFFHeader(s, m_coff_header_opt); 850 } 851 s->EOL(); 852 DumpSectionHeaders(s); 853 s->EOL(); 854 } 855 } 856 857 //---------------------------------------------------------------------- 858 // DumpDOSHeader 859 // 860 // Dump the MS-DOS header to the specified output stream 861 //---------------------------------------------------------------------- 862 void ObjectFilePECOFF::DumpDOSHeader(Stream *s, const dos_header_t &header) { 863 s->PutCString("MSDOS Header\n"); 864 s->Printf(" e_magic = 0x%4.4x\n", header.e_magic); 865 s->Printf(" e_cblp = 0x%4.4x\n", header.e_cblp); 866 s->Printf(" e_cp = 0x%4.4x\n", header.e_cp); 867 s->Printf(" e_crlc = 0x%4.4x\n", header.e_crlc); 868 s->Printf(" e_cparhdr = 0x%4.4x\n", header.e_cparhdr); 869 s->Printf(" e_minalloc = 0x%4.4x\n", header.e_minalloc); 870 s->Printf(" e_maxalloc = 0x%4.4x\n", header.e_maxalloc); 871 s->Printf(" e_ss = 0x%4.4x\n", header.e_ss); 872 s->Printf(" e_sp = 0x%4.4x\n", header.e_sp); 873 s->Printf(" e_csum = 0x%4.4x\n", header.e_csum); 874 s->Printf(" e_ip = 0x%4.4x\n", header.e_ip); 875 s->Printf(" e_cs = 0x%4.4x\n", header.e_cs); 876 s->Printf(" e_lfarlc = 0x%4.4x\n", header.e_lfarlc); 877 s->Printf(" e_ovno = 0x%4.4x\n", header.e_ovno); 878 s->Printf(" e_res[4] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 879 header.e_res[0], header.e_res[1], header.e_res[2], header.e_res[3]); 880 s->Printf(" e_oemid = 0x%4.4x\n", header.e_oemid); 881 s->Printf(" e_oeminfo = 0x%4.4x\n", header.e_oeminfo); 882 s->Printf(" e_res2[10] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, " 883 "0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 884 header.e_res2[0], header.e_res2[1], header.e_res2[2], 885 header.e_res2[3], header.e_res2[4], header.e_res2[5], 886 header.e_res2[6], header.e_res2[7], header.e_res2[8], 887 header.e_res2[9]); 888 s->Printf(" e_lfanew = 0x%8.8x\n", header.e_lfanew); 889 } 890 891 //---------------------------------------------------------------------- 892 // DumpCOFFHeader 893 // 894 // Dump the COFF header to the specified output stream 895 //---------------------------------------------------------------------- 896 void ObjectFilePECOFF::DumpCOFFHeader(Stream *s, const coff_header_t &header) { 897 s->PutCString("COFF Header\n"); 898 s->Printf(" machine = 0x%4.4x\n", header.machine); 899 s->Printf(" nsects = 0x%4.4x\n", header.nsects); 900 s->Printf(" modtime = 0x%8.8x\n", header.modtime); 901 s->Printf(" symoff = 0x%8.8x\n", header.symoff); 902 s->Printf(" nsyms = 0x%8.8x\n", header.nsyms); 903 s->Printf(" hdrsize = 0x%4.4x\n", header.hdrsize); 904 } 905 906 //---------------------------------------------------------------------- 907 // DumpOptCOFFHeader 908 // 909 // Dump the optional COFF header to the specified output stream 910 //---------------------------------------------------------------------- 911 void ObjectFilePECOFF::DumpOptCOFFHeader(Stream *s, 912 const coff_opt_header_t &header) { 913 s->PutCString("Optional COFF Header\n"); 914 s->Printf(" magic = 0x%4.4x\n", header.magic); 915 s->Printf(" major_linker_version = 0x%2.2x\n", 916 header.major_linker_version); 917 s->Printf(" minor_linker_version = 0x%2.2x\n", 918 header.minor_linker_version); 919 s->Printf(" code_size = 0x%8.8x\n", header.code_size); 920 s->Printf(" data_size = 0x%8.8x\n", header.data_size); 921 s->Printf(" bss_size = 0x%8.8x\n", header.bss_size); 922 s->Printf(" entry = 0x%8.8x\n", header.entry); 923 s->Printf(" code_offset = 0x%8.8x\n", header.code_offset); 924 s->Printf(" data_offset = 0x%8.8x\n", header.data_offset); 925 s->Printf(" image_base = 0x%16.16" PRIx64 "\n", 926 header.image_base); 927 s->Printf(" sect_alignment = 0x%8.8x\n", header.sect_alignment); 928 s->Printf(" file_alignment = 0x%8.8x\n", header.file_alignment); 929 s->Printf(" major_os_system_version = 0x%4.4x\n", 930 header.major_os_system_version); 931 s->Printf(" minor_os_system_version = 0x%4.4x\n", 932 header.minor_os_system_version); 933 s->Printf(" major_image_version = 0x%4.4x\n", 934 header.major_image_version); 935 s->Printf(" minor_image_version = 0x%4.4x\n", 936 header.minor_image_version); 937 s->Printf(" major_subsystem_version = 0x%4.4x\n", 938 header.major_subsystem_version); 939 s->Printf(" minor_subsystem_version = 0x%4.4x\n", 940 header.minor_subsystem_version); 941 s->Printf(" reserved1 = 0x%8.8x\n", header.reserved1); 942 s->Printf(" image_size = 0x%8.8x\n", header.image_size); 943 s->Printf(" header_size = 0x%8.8x\n", header.header_size); 944 s->Printf(" checksum = 0x%8.8x\n", header.checksum); 945 s->Printf(" subsystem = 0x%4.4x\n", header.subsystem); 946 s->Printf(" dll_flags = 0x%4.4x\n", header.dll_flags); 947 s->Printf(" stack_reserve_size = 0x%16.16" PRIx64 "\n", 948 header.stack_reserve_size); 949 s->Printf(" stack_commit_size = 0x%16.16" PRIx64 "\n", 950 header.stack_commit_size); 951 s->Printf(" heap_reserve_size = 0x%16.16" PRIx64 "\n", 952 header.heap_reserve_size); 953 s->Printf(" heap_commit_size = 0x%16.16" PRIx64 "\n", 954 header.heap_commit_size); 955 s->Printf(" loader_flags = 0x%8.8x\n", header.loader_flags); 956 s->Printf(" num_data_dir_entries = 0x%8.8x\n", 957 (uint32_t)header.data_dirs.size()); 958 uint32_t i; 959 for (i = 0; i < header.data_dirs.size(); i++) { 960 s->Printf(" data_dirs[%2u] vmaddr = 0x%8.8x, vmsize = 0x%8.8x\n", i, 961 header.data_dirs[i].vmaddr, header.data_dirs[i].vmsize); 962 } 963 } 964 //---------------------------------------------------------------------- 965 // DumpSectionHeader 966 // 967 // Dump a single ELF section header to the specified output stream 968 //---------------------------------------------------------------------- 969 void ObjectFilePECOFF::DumpSectionHeader(Stream *s, 970 const section_header_t &sh) { 971 std::string name; 972 GetSectionName(name, sh); 973 s->Printf("%-16s 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%4.4x " 974 "0x%4.4x 0x%8.8x\n", 975 name.c_str(), sh.vmaddr, sh.vmsize, sh.offset, sh.size, sh.reloff, 976 sh.lineoff, sh.nreloc, sh.nline, sh.flags); 977 } 978 979 //---------------------------------------------------------------------- 980 // DumpSectionHeaders 981 // 982 // Dump all of the ELF section header to the specified output stream 983 //---------------------------------------------------------------------- 984 void ObjectFilePECOFF::DumpSectionHeaders(Stream *s) { 985 986 s->PutCString("Section Headers\n"); 987 s->PutCString("IDX name vm addr vm size file off file " 988 "size reloc off line off nreloc nline flags\n"); 989 s->PutCString("==== ---------------- ---------- ---------- ---------- " 990 "---------- ---------- ---------- ------ ------ ----------\n"); 991 992 uint32_t idx = 0; 993 SectionHeaderCollIter pos, end = m_sect_headers.end(); 994 995 for (pos = m_sect_headers.begin(); pos != end; ++pos, ++idx) { 996 s->Printf("[%2u] ", idx); 997 ObjectFilePECOFF::DumpSectionHeader(s, *pos); 998 } 999 } 1000 1001 bool ObjectFilePECOFF::IsWindowsSubsystem() { 1002 switch (m_coff_header_opt.subsystem) { 1003 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE: 1004 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_GUI: 1005 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CUI: 1006 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE_WINDOWS: 1007 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CE_GUI: 1008 case llvm::COFF::IMAGE_SUBSYSTEM_XBOX: 1009 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_BOOT_APPLICATION: 1010 return true; 1011 default: 1012 return false; 1013 } 1014 } 1015 1016 bool ObjectFilePECOFF::GetArchitecture(ArchSpec &arch) { 1017 uint16_t machine = m_coff_header.machine; 1018 switch (machine) { 1019 case llvm::COFF::IMAGE_FILE_MACHINE_AMD64: 1020 case llvm::COFF::IMAGE_FILE_MACHINE_I386: 1021 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPC: 1022 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPCFP: 1023 case llvm::COFF::IMAGE_FILE_MACHINE_ARM: 1024 case llvm::COFF::IMAGE_FILE_MACHINE_ARMNT: 1025 case llvm::COFF::IMAGE_FILE_MACHINE_THUMB: 1026 arch.SetArchitecture(eArchTypeCOFF, machine, LLDB_INVALID_CPUTYPE, 1027 IsWindowsSubsystem() ? llvm::Triple::Win32 1028 : llvm::Triple::UnknownOS); 1029 return true; 1030 default: 1031 break; 1032 } 1033 return false; 1034 } 1035 1036 ObjectFile::Type ObjectFilePECOFF::CalculateType() { 1037 if (m_coff_header.machine != 0) { 1038 if ((m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0) 1039 return eTypeExecutable; 1040 else 1041 return eTypeSharedLibrary; 1042 } 1043 return eTypeExecutable; 1044 } 1045 1046 ObjectFile::Strata ObjectFilePECOFF::CalculateStrata() { return eStrataUser; } 1047 //------------------------------------------------------------------ 1048 // PluginInterface protocol 1049 //------------------------------------------------------------------ 1050 ConstString ObjectFilePECOFF::GetPluginName() { return GetPluginNameStatic(); } 1051 1052 uint32_t ObjectFilePECOFF::GetPluginVersion() { return 1; } 1053