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