1 //===-- ObjectFilePECOFF.cpp ----------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "ObjectFilePECOFF.h" 10 #include "PECallFrameInfo.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/LLDBLog.h" 27 #include "lldb/Utility/Log.h" 28 #include "lldb/Utility/StreamString.h" 29 #include "lldb/Utility/Timer.h" 30 #include "lldb/Utility/UUID.h" 31 #include "llvm/BinaryFormat/COFF.h" 32 33 #include "llvm/Object/COFFImportFile.h" 34 #include "llvm/Support/Error.h" 35 #include "llvm/Support/MemoryBuffer.h" 36 37 #define IMAGE_DOS_SIGNATURE 0x5A4D // MZ 38 #define IMAGE_NT_SIGNATURE 0x00004550 // PE00 39 #define OPT_HEADER_MAGIC_PE32 0x010b 40 #define OPT_HEADER_MAGIC_PE32_PLUS 0x020b 41 42 using namespace lldb; 43 using namespace lldb_private; 44 45 LLDB_PLUGIN_DEFINE(ObjectFilePECOFF) 46 47 static UUID GetCoffUUID(llvm::object::COFFObjectFile &coff_obj) { 48 const llvm::codeview::DebugInfo *pdb_info = nullptr; 49 llvm::StringRef pdb_file; 50 51 if (!coff_obj.getDebugPDBInfo(pdb_info, pdb_file) && pdb_info) { 52 if (pdb_info->PDB70.CVSignature == llvm::OMF::Signature::PDB70) { 53 UUID::CvRecordPdb70 info; 54 memcpy(&info.Uuid, pdb_info->PDB70.Signature, sizeof(info.Uuid)); 55 info.Age = pdb_info->PDB70.Age; 56 return UUID::fromCvRecord(info); 57 } 58 } 59 60 return UUID(); 61 } 62 63 char ObjectFilePECOFF::ID; 64 65 void ObjectFilePECOFF::Initialize() { 66 PluginManager::RegisterPlugin( 67 GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance, 68 CreateMemoryInstance, GetModuleSpecifications, SaveCore); 69 } 70 71 void ObjectFilePECOFF::Terminate() { 72 PluginManager::UnregisterPlugin(CreateInstance); 73 } 74 75 llvm::StringRef ObjectFilePECOFF::GetPluginDescriptionStatic() { 76 return "Portable Executable and Common Object File Format object file reader " 77 "(32 and 64 bit)"; 78 } 79 80 ObjectFile *ObjectFilePECOFF::CreateInstance( 81 const lldb::ModuleSP &module_sp, DataBufferSP data_sp, 82 lldb::offset_t data_offset, const lldb_private::FileSpec *file_p, 83 lldb::offset_t file_offset, lldb::offset_t length) { 84 FileSpec file = file_p ? *file_p : FileSpec(); 85 if (!data_sp) { 86 data_sp = MapFileData(file, length, file_offset); 87 if (!data_sp) 88 return nullptr; 89 data_offset = 0; 90 } 91 92 if (!ObjectFilePECOFF::MagicBytesMatch(data_sp)) 93 return nullptr; 94 95 // Update the data to contain the entire file if it doesn't already 96 if (data_sp->GetByteSize() < length) { 97 data_sp = MapFileData(file, length, file_offset); 98 if (!data_sp) 99 return nullptr; 100 } 101 102 auto objfile_up = std::make_unique<ObjectFilePECOFF>( 103 module_sp, data_sp, data_offset, file_p, file_offset, length); 104 if (!objfile_up || !objfile_up->ParseHeader()) 105 return nullptr; 106 107 // Cache coff binary. 108 if (!objfile_up->CreateBinary()) 109 return nullptr; 110 return objfile_up.release(); 111 } 112 113 ObjectFile *ObjectFilePECOFF::CreateMemoryInstance( 114 const lldb::ModuleSP &module_sp, lldb::WritableDataBufferSP data_sp, 115 const lldb::ProcessSP &process_sp, lldb::addr_t header_addr) { 116 if (!data_sp || !ObjectFilePECOFF::MagicBytesMatch(data_sp)) 117 return nullptr; 118 auto objfile_up = std::make_unique<ObjectFilePECOFF>( 119 module_sp, data_sp, process_sp, header_addr); 120 if (objfile_up.get() && objfile_up->ParseHeader()) { 121 return objfile_up.release(); 122 } 123 return nullptr; 124 } 125 126 size_t ObjectFilePECOFF::GetModuleSpecifications( 127 const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp, 128 lldb::offset_t data_offset, lldb::offset_t file_offset, 129 lldb::offset_t length, lldb_private::ModuleSpecList &specs) { 130 const size_t initial_count = specs.GetSize(); 131 if (!data_sp || !ObjectFilePECOFF::MagicBytesMatch(data_sp)) 132 return initial_count; 133 134 Log *log = GetLog(LLDBLog::Object); 135 136 if (data_sp->GetByteSize() < length) 137 if (DataBufferSP full_sp = MapFileData(file, -1, file_offset)) 138 data_sp = std::move(full_sp); 139 auto binary = llvm::object::createBinary(llvm::MemoryBufferRef( 140 toStringRef(data_sp->GetData()), file.GetFilename().GetStringRef())); 141 142 if (!binary) { 143 LLDB_LOG_ERROR(log, binary.takeError(), 144 "Failed to create binary for file ({1}): {0}", file); 145 return initial_count; 146 } 147 148 auto *COFFObj = llvm::dyn_cast<llvm::object::COFFObjectFile>(binary->get()); 149 if (!COFFObj) 150 return initial_count; 151 152 ModuleSpec module_spec(file); 153 ArchSpec &spec = module_spec.GetArchitecture(); 154 lldb_private::UUID &uuid = module_spec.GetUUID(); 155 if (!uuid.IsValid()) 156 uuid = GetCoffUUID(*COFFObj); 157 158 switch (COFFObj->getMachine()) { 159 case MachineAmd64: 160 spec.SetTriple("x86_64-pc-windows"); 161 specs.Append(module_spec); 162 break; 163 case MachineX86: 164 spec.SetTriple("i386-pc-windows"); 165 specs.Append(module_spec); 166 spec.SetTriple("i686-pc-windows"); 167 specs.Append(module_spec); 168 break; 169 case MachineArmNt: 170 spec.SetTriple("armv7-pc-windows"); 171 specs.Append(module_spec); 172 break; 173 case MachineArm64: 174 spec.SetTriple("aarch64-pc-windows"); 175 specs.Append(module_spec); 176 break; 177 default: 178 break; 179 } 180 181 return specs.GetSize() - initial_count; 182 } 183 184 bool ObjectFilePECOFF::SaveCore(const lldb::ProcessSP &process_sp, 185 const lldb_private::FileSpec &outfile, 186 lldb::SaveCoreStyle &core_style, 187 lldb_private::Status &error) { 188 core_style = eSaveCoreFull; 189 return SaveMiniDump(process_sp, outfile, error); 190 } 191 192 bool ObjectFilePECOFF::MagicBytesMatch(DataBufferSP data_sp) { 193 DataExtractor data(data_sp, eByteOrderLittle, 4); 194 lldb::offset_t offset = 0; 195 uint16_t magic = data.GetU16(&offset); 196 return magic == IMAGE_DOS_SIGNATURE; 197 } 198 199 lldb::SymbolType ObjectFilePECOFF::MapSymbolType(uint16_t coff_symbol_type) { 200 // TODO: We need to complete this mapping of COFF symbol types to LLDB ones. 201 // For now, here's a hack to make sure our function have types. 202 const auto complex_type = 203 coff_symbol_type >> llvm::COFF::SCT_COMPLEX_TYPE_SHIFT; 204 if (complex_type == llvm::COFF::IMAGE_SYM_DTYPE_FUNCTION) { 205 return lldb::eSymbolTypeCode; 206 } 207 return lldb::eSymbolTypeInvalid; 208 } 209 210 bool ObjectFilePECOFF::CreateBinary() { 211 if (m_binary) 212 return true; 213 214 Log *log = GetLog(LLDBLog::Object); 215 216 auto binary = llvm::object::createBinary(llvm::MemoryBufferRef( 217 toStringRef(m_data.GetData()), m_file.GetFilename().GetStringRef())); 218 if (!binary) { 219 LLDB_LOG_ERROR(log, binary.takeError(), 220 "Failed to create binary for file ({1}): {0}", m_file); 221 return false; 222 } 223 224 // Make sure we only handle COFF format. 225 m_binary = 226 llvm::unique_dyn_cast<llvm::object::COFFObjectFile>(std::move(*binary)); 227 if (!m_binary) 228 return false; 229 230 LLDB_LOG(log, "this = {0}, module = {1} ({2}), file = {3}, binary = {4}", 231 this, GetModule().get(), GetModule()->GetSpecificationDescription(), 232 m_file.GetPath(), m_binary.get()); 233 return true; 234 } 235 236 ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 237 DataBufferSP data_sp, 238 lldb::offset_t data_offset, 239 const FileSpec *file, 240 lldb::offset_t file_offset, 241 lldb::offset_t length) 242 : ObjectFile(module_sp, file, file_offset, length, data_sp, data_offset), 243 m_dos_header(), m_coff_header(), m_sect_headers(), 244 m_entry_point_address(), m_deps_filespec() { 245 ::memset(&m_dos_header, 0, sizeof(m_dos_header)); 246 ::memset(&m_coff_header, 0, sizeof(m_coff_header)); 247 } 248 249 ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 250 WritableDataBufferSP header_data_sp, 251 const lldb::ProcessSP &process_sp, 252 addr_t header_addr) 253 : ObjectFile(module_sp, process_sp, header_addr, header_data_sp), 254 m_dos_header(), m_coff_header(), m_sect_headers(), 255 m_entry_point_address(), m_deps_filespec() { 256 ::memset(&m_dos_header, 0, sizeof(m_dos_header)); 257 ::memset(&m_coff_header, 0, sizeof(m_coff_header)); 258 } 259 260 ObjectFilePECOFF::~ObjectFilePECOFF() = default; 261 262 bool ObjectFilePECOFF::ParseHeader() { 263 ModuleSP module_sp(GetModule()); 264 if (module_sp) { 265 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 266 m_sect_headers.clear(); 267 m_data.SetByteOrder(eByteOrderLittle); 268 lldb::offset_t offset = 0; 269 270 if (ParseDOSHeader(m_data, m_dos_header)) { 271 offset = m_dos_header.e_lfanew; 272 uint32_t pe_signature = m_data.GetU32(&offset); 273 if (pe_signature != IMAGE_NT_SIGNATURE) 274 return false; 275 if (ParseCOFFHeader(m_data, &offset, m_coff_header)) { 276 if (m_coff_header.hdrsize > 0) 277 ParseCOFFOptionalHeader(&offset); 278 ParseSectionHeaders(offset); 279 } 280 m_data.SetAddressByteSize(GetAddressByteSize()); 281 return true; 282 } 283 } 284 return false; 285 } 286 287 bool ObjectFilePECOFF::SetLoadAddress(Target &target, addr_t value, 288 bool value_is_offset) { 289 bool changed = false; 290 ModuleSP module_sp = GetModule(); 291 if (module_sp) { 292 size_t num_loaded_sections = 0; 293 SectionList *section_list = GetSectionList(); 294 if (section_list) { 295 if (!value_is_offset) { 296 value -= m_image_base; 297 } 298 299 const size_t num_sections = section_list->GetSize(); 300 size_t sect_idx = 0; 301 302 for (sect_idx = 0; sect_idx < num_sections; ++sect_idx) { 303 // Iterate through the object file sections to find all of the sections 304 // that have SHF_ALLOC in their flag bits. 305 SectionSP section_sp(section_list->GetSectionAtIndex(sect_idx)); 306 if (section_sp && !section_sp->IsThreadSpecific()) { 307 if (target.GetSectionLoadList().SetSectionLoadAddress( 308 section_sp, section_sp->GetFileAddress() + value)) 309 ++num_loaded_sections; 310 } 311 } 312 changed = num_loaded_sections > 0; 313 } 314 } 315 return changed; 316 } 317 318 ByteOrder ObjectFilePECOFF::GetByteOrder() const { return eByteOrderLittle; } 319 320 bool ObjectFilePECOFF::IsExecutable() const { 321 return (m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0; 322 } 323 324 uint32_t ObjectFilePECOFF::GetAddressByteSize() const { 325 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32_PLUS) 326 return 8; 327 else if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) 328 return 4; 329 return 4; 330 } 331 332 // NeedsEndianSwap 333 // 334 // Return true if an endian swap needs to occur when extracting data from this 335 // file. 336 bool ObjectFilePECOFF::NeedsEndianSwap() const { 337 #if defined(__LITTLE_ENDIAN__) 338 return false; 339 #else 340 return true; 341 #endif 342 } 343 // ParseDOSHeader 344 bool ObjectFilePECOFF::ParseDOSHeader(DataExtractor &data, 345 dos_header_t &dos_header) { 346 bool success = false; 347 lldb::offset_t offset = 0; 348 success = data.ValidOffsetForDataOfSize(0, sizeof(dos_header)); 349 350 if (success) { 351 dos_header.e_magic = data.GetU16(&offset); // Magic number 352 success = dos_header.e_magic == IMAGE_DOS_SIGNATURE; 353 354 if (success) { 355 dos_header.e_cblp = data.GetU16(&offset); // Bytes on last page of file 356 dos_header.e_cp = data.GetU16(&offset); // Pages in file 357 dos_header.e_crlc = data.GetU16(&offset); // Relocations 358 dos_header.e_cparhdr = 359 data.GetU16(&offset); // Size of header in paragraphs 360 dos_header.e_minalloc = 361 data.GetU16(&offset); // Minimum extra paragraphs needed 362 dos_header.e_maxalloc = 363 data.GetU16(&offset); // Maximum extra paragraphs needed 364 dos_header.e_ss = data.GetU16(&offset); // Initial (relative) SS value 365 dos_header.e_sp = data.GetU16(&offset); // Initial SP value 366 dos_header.e_csum = data.GetU16(&offset); // Checksum 367 dos_header.e_ip = data.GetU16(&offset); // Initial IP value 368 dos_header.e_cs = data.GetU16(&offset); // Initial (relative) CS value 369 dos_header.e_lfarlc = 370 data.GetU16(&offset); // File address of relocation table 371 dos_header.e_ovno = data.GetU16(&offset); // Overlay number 372 373 dos_header.e_res[0] = data.GetU16(&offset); // Reserved words 374 dos_header.e_res[1] = data.GetU16(&offset); // Reserved words 375 dos_header.e_res[2] = data.GetU16(&offset); // Reserved words 376 dos_header.e_res[3] = data.GetU16(&offset); // Reserved words 377 378 dos_header.e_oemid = 379 data.GetU16(&offset); // OEM identifier (for e_oeminfo) 380 dos_header.e_oeminfo = 381 data.GetU16(&offset); // OEM information; e_oemid specific 382 dos_header.e_res2[0] = data.GetU16(&offset); // Reserved words 383 dos_header.e_res2[1] = data.GetU16(&offset); // Reserved words 384 dos_header.e_res2[2] = data.GetU16(&offset); // Reserved words 385 dos_header.e_res2[3] = data.GetU16(&offset); // Reserved words 386 dos_header.e_res2[4] = data.GetU16(&offset); // Reserved words 387 dos_header.e_res2[5] = data.GetU16(&offset); // Reserved words 388 dos_header.e_res2[6] = data.GetU16(&offset); // Reserved words 389 dos_header.e_res2[7] = data.GetU16(&offset); // Reserved words 390 dos_header.e_res2[8] = data.GetU16(&offset); // Reserved words 391 dos_header.e_res2[9] = data.GetU16(&offset); // Reserved words 392 393 dos_header.e_lfanew = 394 data.GetU32(&offset); // File address of new exe header 395 } 396 } 397 if (!success) 398 memset(&dos_header, 0, sizeof(dos_header)); 399 return success; 400 } 401 402 // ParserCOFFHeader 403 bool ObjectFilePECOFF::ParseCOFFHeader(DataExtractor &data, 404 lldb::offset_t *offset_ptr, 405 coff_header_t &coff_header) { 406 bool success = 407 data.ValidOffsetForDataOfSize(*offset_ptr, sizeof(coff_header)); 408 if (success) { 409 coff_header.machine = data.GetU16(offset_ptr); 410 coff_header.nsects = data.GetU16(offset_ptr); 411 coff_header.modtime = data.GetU32(offset_ptr); 412 coff_header.symoff = data.GetU32(offset_ptr); 413 coff_header.nsyms = data.GetU32(offset_ptr); 414 coff_header.hdrsize = data.GetU16(offset_ptr); 415 coff_header.flags = data.GetU16(offset_ptr); 416 } 417 if (!success) 418 memset(&coff_header, 0, sizeof(coff_header)); 419 return success; 420 } 421 422 bool ObjectFilePECOFF::ParseCOFFOptionalHeader(lldb::offset_t *offset_ptr) { 423 bool success = false; 424 const lldb::offset_t end_offset = *offset_ptr + m_coff_header.hdrsize; 425 if (*offset_ptr < end_offset) { 426 success = true; 427 m_coff_header_opt.magic = m_data.GetU16(offset_ptr); 428 m_coff_header_opt.major_linker_version = m_data.GetU8(offset_ptr); 429 m_coff_header_opt.minor_linker_version = m_data.GetU8(offset_ptr); 430 m_coff_header_opt.code_size = m_data.GetU32(offset_ptr); 431 m_coff_header_opt.data_size = m_data.GetU32(offset_ptr); 432 m_coff_header_opt.bss_size = m_data.GetU32(offset_ptr); 433 m_coff_header_opt.entry = m_data.GetU32(offset_ptr); 434 m_coff_header_opt.code_offset = m_data.GetU32(offset_ptr); 435 436 const uint32_t addr_byte_size = GetAddressByteSize(); 437 438 if (*offset_ptr < end_offset) { 439 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) { 440 // PE32 only 441 m_coff_header_opt.data_offset = m_data.GetU32(offset_ptr); 442 } else 443 m_coff_header_opt.data_offset = 0; 444 445 if (*offset_ptr < end_offset) { 446 m_coff_header_opt.image_base = 447 m_data.GetMaxU64(offset_ptr, addr_byte_size); 448 m_coff_header_opt.sect_alignment = m_data.GetU32(offset_ptr); 449 m_coff_header_opt.file_alignment = m_data.GetU32(offset_ptr); 450 m_coff_header_opt.major_os_system_version = m_data.GetU16(offset_ptr); 451 m_coff_header_opt.minor_os_system_version = m_data.GetU16(offset_ptr); 452 m_coff_header_opt.major_image_version = m_data.GetU16(offset_ptr); 453 m_coff_header_opt.minor_image_version = m_data.GetU16(offset_ptr); 454 m_coff_header_opt.major_subsystem_version = m_data.GetU16(offset_ptr); 455 m_coff_header_opt.minor_subsystem_version = m_data.GetU16(offset_ptr); 456 m_coff_header_opt.reserved1 = m_data.GetU32(offset_ptr); 457 m_coff_header_opt.image_size = m_data.GetU32(offset_ptr); 458 m_coff_header_opt.header_size = m_data.GetU32(offset_ptr); 459 m_coff_header_opt.checksum = m_data.GetU32(offset_ptr); 460 m_coff_header_opt.subsystem = m_data.GetU16(offset_ptr); 461 m_coff_header_opt.dll_flags = m_data.GetU16(offset_ptr); 462 m_coff_header_opt.stack_reserve_size = 463 m_data.GetMaxU64(offset_ptr, addr_byte_size); 464 m_coff_header_opt.stack_commit_size = 465 m_data.GetMaxU64(offset_ptr, addr_byte_size); 466 m_coff_header_opt.heap_reserve_size = 467 m_data.GetMaxU64(offset_ptr, addr_byte_size); 468 m_coff_header_opt.heap_commit_size = 469 m_data.GetMaxU64(offset_ptr, addr_byte_size); 470 m_coff_header_opt.loader_flags = m_data.GetU32(offset_ptr); 471 uint32_t num_data_dir_entries = m_data.GetU32(offset_ptr); 472 m_coff_header_opt.data_dirs.clear(); 473 m_coff_header_opt.data_dirs.resize(num_data_dir_entries); 474 uint32_t i; 475 for (i = 0; i < num_data_dir_entries; i++) { 476 m_coff_header_opt.data_dirs[i].vmaddr = m_data.GetU32(offset_ptr); 477 m_coff_header_opt.data_dirs[i].vmsize = m_data.GetU32(offset_ptr); 478 } 479 480 m_image_base = m_coff_header_opt.image_base; 481 } 482 } 483 } 484 // Make sure we are on track for section data which follows 485 *offset_ptr = end_offset; 486 return success; 487 } 488 489 uint32_t ObjectFilePECOFF::GetRVA(const Address &addr) const { 490 return addr.GetFileAddress() - m_image_base; 491 } 492 493 Address ObjectFilePECOFF::GetAddress(uint32_t rva) { 494 SectionList *sect_list = GetSectionList(); 495 if (!sect_list) 496 return Address(GetFileAddress(rva)); 497 498 return Address(GetFileAddress(rva), sect_list); 499 } 500 501 lldb::addr_t ObjectFilePECOFF::GetFileAddress(uint32_t rva) const { 502 return m_image_base + rva; 503 } 504 505 DataExtractor ObjectFilePECOFF::ReadImageData(uint32_t offset, size_t size) { 506 if (!size) 507 return {}; 508 509 if (m_data.ValidOffsetForDataOfSize(offset, size)) 510 return DataExtractor(m_data, offset, size); 511 512 ProcessSP process_sp(m_process_wp.lock()); 513 DataExtractor data; 514 if (process_sp) { 515 auto data_up = std::make_unique<DataBufferHeap>(size, 0); 516 Status readmem_error; 517 size_t bytes_read = 518 process_sp->ReadMemory(m_image_base + offset, data_up->GetBytes(), 519 data_up->GetByteSize(), readmem_error); 520 if (bytes_read == size) { 521 DataBufferSP buffer_sp(data_up.release()); 522 data.SetData(buffer_sp, 0, buffer_sp->GetByteSize()); 523 } 524 } 525 return data; 526 } 527 528 DataExtractor ObjectFilePECOFF::ReadImageDataByRVA(uint32_t rva, size_t size) { 529 Address addr = GetAddress(rva); 530 SectionSP sect = addr.GetSection(); 531 if (!sect) 532 return {}; 533 rva = sect->GetFileOffset() + addr.GetOffset(); 534 535 return ReadImageData(rva, size); 536 } 537 538 // ParseSectionHeaders 539 bool ObjectFilePECOFF::ParseSectionHeaders( 540 uint32_t section_header_data_offset) { 541 const uint32_t nsects = m_coff_header.nsects; 542 m_sect_headers.clear(); 543 544 if (nsects > 0) { 545 const size_t section_header_byte_size = nsects * sizeof(section_header_t); 546 DataExtractor section_header_data = 547 ReadImageData(section_header_data_offset, section_header_byte_size); 548 549 lldb::offset_t offset = 0; 550 if (section_header_data.ValidOffsetForDataOfSize( 551 offset, section_header_byte_size)) { 552 m_sect_headers.resize(nsects); 553 554 for (uint32_t idx = 0; idx < nsects; ++idx) { 555 const void *name_data = section_header_data.GetData(&offset, 8); 556 if (name_data) { 557 memcpy(m_sect_headers[idx].name, name_data, 8); 558 m_sect_headers[idx].vmsize = section_header_data.GetU32(&offset); 559 m_sect_headers[idx].vmaddr = section_header_data.GetU32(&offset); 560 m_sect_headers[idx].size = section_header_data.GetU32(&offset); 561 m_sect_headers[idx].offset = section_header_data.GetU32(&offset); 562 m_sect_headers[idx].reloff = section_header_data.GetU32(&offset); 563 m_sect_headers[idx].lineoff = section_header_data.GetU32(&offset); 564 m_sect_headers[idx].nreloc = section_header_data.GetU16(&offset); 565 m_sect_headers[idx].nline = section_header_data.GetU16(&offset); 566 m_sect_headers[idx].flags = section_header_data.GetU32(&offset); 567 } 568 } 569 } 570 } 571 572 return !m_sect_headers.empty(); 573 } 574 575 llvm::StringRef ObjectFilePECOFF::GetSectionName(const section_header_t §) { 576 llvm::StringRef hdr_name(sect.name, llvm::array_lengthof(sect.name)); 577 hdr_name = hdr_name.split('\0').first; 578 if (hdr_name.consume_front("/")) { 579 lldb::offset_t stroff; 580 if (!to_integer(hdr_name, stroff, 10)) 581 return ""; 582 lldb::offset_t string_file_offset = 583 m_coff_header.symoff + (m_coff_header.nsyms * 18) + stroff; 584 if (const char *name = m_data.GetCStr(&string_file_offset)) 585 return name; 586 return ""; 587 } 588 return hdr_name; 589 } 590 591 void ObjectFilePECOFF::ParseSymtab(Symtab &symtab) { 592 SectionList *sect_list = GetSectionList(); 593 const uint32_t num_syms = m_coff_header.nsyms; 594 if (m_file && num_syms > 0 && m_coff_header.symoff > 0) { 595 const uint32_t symbol_size = 18; 596 const size_t symbol_data_size = num_syms * symbol_size; 597 // Include the 4-byte string table size at the end of the symbols 598 DataExtractor symtab_data = 599 ReadImageData(m_coff_header.symoff, symbol_data_size + 4); 600 lldb::offset_t offset = symbol_data_size; 601 const uint32_t strtab_size = symtab_data.GetU32(&offset); 602 if (strtab_size > 0) { 603 DataExtractor strtab_data = ReadImageData( 604 m_coff_header.symoff + symbol_data_size, strtab_size); 605 606 offset = 0; 607 std::string symbol_name; 608 Symbol *symbols = symtab.Resize(num_syms); 609 for (uint32_t i = 0; i < num_syms; ++i) { 610 coff_symbol_t symbol; 611 const uint32_t symbol_offset = offset; 612 const char *symbol_name_cstr = nullptr; 613 // If the first 4 bytes of the symbol string are zero, then they 614 // are followed by a 4-byte string table offset. Else these 615 // 8 bytes contain the symbol name 616 if (symtab_data.GetU32(&offset) == 0) { 617 // Long string that doesn't fit into the symbol table name, so 618 // now we must read the 4 byte string table offset 619 uint32_t strtab_offset = symtab_data.GetU32(&offset); 620 symbol_name_cstr = strtab_data.PeekCStr(strtab_offset); 621 symbol_name.assign(symbol_name_cstr); 622 } else { 623 // Short string that fits into the symbol table name which is 8 624 // bytes 625 offset += sizeof(symbol.name) - 4; // Skip remaining 626 symbol_name_cstr = symtab_data.PeekCStr(symbol_offset); 627 if (symbol_name_cstr == nullptr) 628 break; 629 symbol_name.assign(symbol_name_cstr, sizeof(symbol.name)); 630 } 631 symbol.value = symtab_data.GetU32(&offset); 632 symbol.sect = symtab_data.GetU16(&offset); 633 symbol.type = symtab_data.GetU16(&offset); 634 symbol.storage = symtab_data.GetU8(&offset); 635 symbol.naux = symtab_data.GetU8(&offset); 636 symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str())); 637 if ((int16_t)symbol.sect >= 1) { 638 Address symbol_addr(sect_list->FindSectionByID(symbol.sect), 639 symbol.value); 640 symbols[i].GetAddressRef() = symbol_addr; 641 symbols[i].SetType(MapSymbolType(symbol.type)); 642 } 643 644 if (symbol.naux > 0) { 645 i += symbol.naux; 646 offset += symbol.naux * symbol_size; 647 } 648 } 649 } 650 } 651 652 // Read export header 653 if (coff_data_dir_export_table < m_coff_header_opt.data_dirs.size() && 654 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmsize > 0 && 655 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr > 0) { 656 export_directory_entry export_table; 657 uint32_t data_start = 658 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr; 659 660 DataExtractor symtab_data = ReadImageDataByRVA( 661 data_start, m_coff_header_opt.data_dirs[0].vmsize); 662 lldb::offset_t offset = 0; 663 664 // Read export_table header 665 export_table.characteristics = symtab_data.GetU32(&offset); 666 export_table.time_date_stamp = symtab_data.GetU32(&offset); 667 export_table.major_version = symtab_data.GetU16(&offset); 668 export_table.minor_version = symtab_data.GetU16(&offset); 669 export_table.name = symtab_data.GetU32(&offset); 670 export_table.base = symtab_data.GetU32(&offset); 671 export_table.number_of_functions = symtab_data.GetU32(&offset); 672 export_table.number_of_names = symtab_data.GetU32(&offset); 673 export_table.address_of_functions = symtab_data.GetU32(&offset); 674 export_table.address_of_names = symtab_data.GetU32(&offset); 675 export_table.address_of_name_ordinals = symtab_data.GetU32(&offset); 676 677 bool has_ordinal = export_table.address_of_name_ordinals != 0; 678 679 lldb::offset_t name_offset = export_table.address_of_names - data_start; 680 lldb::offset_t name_ordinal_offset = 681 export_table.address_of_name_ordinals - data_start; 682 683 Symbol *symbols = symtab.Resize(export_table.number_of_names); 684 685 std::string symbol_name; 686 687 // Read each export table entry 688 for (size_t i = 0; i < export_table.number_of_names; ++i) { 689 uint32_t name_ordinal = 690 has_ordinal ? symtab_data.GetU16(&name_ordinal_offset) : i; 691 uint32_t name_address = symtab_data.GetU32(&name_offset); 692 693 const char *symbol_name_cstr = 694 symtab_data.PeekCStr(name_address - data_start); 695 symbol_name.assign(symbol_name_cstr); 696 697 lldb::offset_t function_offset = export_table.address_of_functions - 698 data_start + 699 sizeof(uint32_t) * name_ordinal; 700 uint32_t function_rva = symtab_data.GetU32(&function_offset); 701 702 Address symbol_addr(m_coff_header_opt.image_base + function_rva, 703 sect_list); 704 symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str())); 705 symbols[i].GetAddressRef() = symbol_addr; 706 symbols[i].SetType(lldb::eSymbolTypeCode); 707 symbols[i].SetDebug(true); 708 } 709 } 710 } 711 712 std::unique_ptr<CallFrameInfo> ObjectFilePECOFF::CreateCallFrameInfo() { 713 if (coff_data_dir_exception_table >= m_coff_header_opt.data_dirs.size()) 714 return {}; 715 716 data_directory data_dir_exception = 717 m_coff_header_opt.data_dirs[coff_data_dir_exception_table]; 718 if (!data_dir_exception.vmaddr) 719 return {}; 720 721 if (m_coff_header.machine != llvm::COFF::IMAGE_FILE_MACHINE_AMD64) 722 return {}; 723 724 return std::make_unique<PECallFrameInfo>(*this, data_dir_exception.vmaddr, 725 data_dir_exception.vmsize); 726 } 727 728 bool ObjectFilePECOFF::IsStripped() { 729 // TODO: determine this for COFF 730 return false; 731 } 732 733 SectionType ObjectFilePECOFF::GetSectionType(llvm::StringRef sect_name, 734 const section_header_t §) { 735 ConstString const_sect_name(sect_name); 736 static ConstString g_code_sect_name(".code"); 737 static ConstString g_CODE_sect_name("CODE"); 738 static ConstString g_data_sect_name(".data"); 739 static ConstString g_DATA_sect_name("DATA"); 740 static ConstString g_bss_sect_name(".bss"); 741 static ConstString g_BSS_sect_name("BSS"); 742 743 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_CODE && 744 ((const_sect_name == g_code_sect_name) || 745 (const_sect_name == g_CODE_sect_name))) { 746 return eSectionTypeCode; 747 } 748 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA && 749 ((const_sect_name == g_data_sect_name) || 750 (const_sect_name == g_DATA_sect_name))) { 751 if (sect.size == 0 && sect.offset == 0) 752 return eSectionTypeZeroFill; 753 else 754 return eSectionTypeData; 755 } 756 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA && 757 ((const_sect_name == g_bss_sect_name) || 758 (const_sect_name == g_BSS_sect_name))) { 759 if (sect.size == 0) 760 return eSectionTypeZeroFill; 761 else 762 return eSectionTypeData; 763 } 764 765 SectionType section_type = 766 llvm::StringSwitch<SectionType>(sect_name) 767 .Case(".debug", eSectionTypeDebug) 768 .Case(".stabstr", eSectionTypeDataCString) 769 .Case(".reloc", eSectionTypeOther) 770 .Case(".debug_abbrev", eSectionTypeDWARFDebugAbbrev) 771 .Case(".debug_aranges", eSectionTypeDWARFDebugAranges) 772 .Case(".debug_frame", eSectionTypeDWARFDebugFrame) 773 .Case(".debug_info", eSectionTypeDWARFDebugInfo) 774 .Case(".debug_line", eSectionTypeDWARFDebugLine) 775 .Case(".debug_loc", eSectionTypeDWARFDebugLoc) 776 .Case(".debug_loclists", eSectionTypeDWARFDebugLocLists) 777 .Case(".debug_macinfo", eSectionTypeDWARFDebugMacInfo) 778 .Case(".debug_names", eSectionTypeDWARFDebugNames) 779 .Case(".debug_pubnames", eSectionTypeDWARFDebugPubNames) 780 .Case(".debug_pubtypes", eSectionTypeDWARFDebugPubTypes) 781 .Case(".debug_ranges", eSectionTypeDWARFDebugRanges) 782 .Case(".debug_str", eSectionTypeDWARFDebugStr) 783 .Case(".debug_types", eSectionTypeDWARFDebugTypes) 784 // .eh_frame can be truncated to 8 chars. 785 .Cases(".eh_frame", ".eh_fram", eSectionTypeEHFrame) 786 .Case(".gosymtab", eSectionTypeGoSymtab) 787 .Default(eSectionTypeInvalid); 788 if (section_type != eSectionTypeInvalid) 789 return section_type; 790 791 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_CODE) 792 return eSectionTypeCode; 793 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA) 794 return eSectionTypeData; 795 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA) { 796 if (sect.size == 0) 797 return eSectionTypeZeroFill; 798 else 799 return eSectionTypeData; 800 } 801 return eSectionTypeOther; 802 } 803 804 void ObjectFilePECOFF::CreateSections(SectionList &unified_section_list) { 805 if (m_sections_up) 806 return; 807 m_sections_up = std::make_unique<SectionList>(); 808 ModuleSP module_sp(GetModule()); 809 if (module_sp) { 810 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 811 812 SectionSP header_sp = std::make_shared<Section>( 813 module_sp, this, ~user_id_t(0), ConstString("PECOFF header"), 814 eSectionTypeOther, m_coff_header_opt.image_base, 815 m_coff_header_opt.header_size, 816 /*file_offset*/ 0, m_coff_header_opt.header_size, 817 m_coff_header_opt.sect_alignment, 818 /*flags*/ 0); 819 header_sp->SetPermissions(ePermissionsReadable); 820 m_sections_up->AddSection(header_sp); 821 unified_section_list.AddSection(header_sp); 822 823 const uint32_t nsects = m_sect_headers.size(); 824 ModuleSP module_sp(GetModule()); 825 for (uint32_t idx = 0; idx < nsects; ++idx) { 826 llvm::StringRef sect_name = GetSectionName(m_sect_headers[idx]); 827 ConstString const_sect_name(sect_name); 828 SectionType section_type = GetSectionType(sect_name, m_sect_headers[idx]); 829 830 SectionSP section_sp(new Section( 831 module_sp, // Module to which this section belongs 832 this, // Object file to which this section belongs 833 idx + 1, // Section ID is the 1 based section index. 834 const_sect_name, // Name of this section 835 section_type, 836 m_coff_header_opt.image_base + 837 m_sect_headers[idx].vmaddr, // File VM address == addresses as 838 // they are found in the object file 839 m_sect_headers[idx].vmsize, // VM size in bytes of this section 840 m_sect_headers[idx] 841 .offset, // Offset to the data for this section in the file 842 m_sect_headers[idx] 843 .size, // Size in bytes of this section as found in the file 844 m_coff_header_opt.sect_alignment, // Section alignment 845 m_sect_headers[idx].flags)); // Flags for this section 846 847 uint32_t permissions = 0; 848 if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_MEM_EXECUTE) 849 permissions |= ePermissionsExecutable; 850 if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_MEM_READ) 851 permissions |= ePermissionsReadable; 852 if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_MEM_WRITE) 853 permissions |= ePermissionsWritable; 854 section_sp->SetPermissions(permissions); 855 856 m_sections_up->AddSection(section_sp); 857 unified_section_list.AddSection(section_sp); 858 } 859 } 860 } 861 862 UUID ObjectFilePECOFF::GetUUID() { 863 if (m_uuid.IsValid()) 864 return m_uuid; 865 866 if (!CreateBinary()) 867 return UUID(); 868 869 m_uuid = GetCoffUUID(*m_binary); 870 return m_uuid; 871 } 872 873 uint32_t ObjectFilePECOFF::ParseDependentModules() { 874 ModuleSP module_sp(GetModule()); 875 if (!module_sp) 876 return 0; 877 878 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 879 if (m_deps_filespec) 880 return m_deps_filespec->GetSize(); 881 882 // Cache coff binary if it is not done yet. 883 if (!CreateBinary()) 884 return 0; 885 886 Log *log = GetLog(LLDBLog::Object); 887 LLDB_LOG(log, "this = {0}, module = {1} ({2}), file = {3}, binary = {4}", 888 this, GetModule().get(), GetModule()->GetSpecificationDescription(), 889 m_file.GetPath(), m_binary.get()); 890 891 m_deps_filespec = FileSpecList(); 892 893 for (const auto &entry : m_binary->import_directories()) { 894 llvm::StringRef dll_name; 895 // Report a bogus entry. 896 if (llvm::Error e = entry.getName(dll_name)) { 897 LLDB_LOGF(log, 898 "ObjectFilePECOFF::ParseDependentModules() - failed to get " 899 "import directory entry name: %s", 900 llvm::toString(std::move(e)).c_str()); 901 continue; 902 } 903 904 // At this moment we only have the base name of the DLL. The full path can 905 // only be seen after the dynamic loading. Our best guess is Try to get it 906 // with the help of the object file's directory. 907 llvm::SmallString<128> dll_fullpath; 908 FileSpec dll_specs(dll_name); 909 dll_specs.GetDirectory().SetString(m_file.GetDirectory().GetCString()); 910 911 if (!llvm::sys::fs::real_path(dll_specs.GetPath(), dll_fullpath)) 912 m_deps_filespec->EmplaceBack(dll_fullpath); 913 else { 914 // Known DLLs or DLL not found in the object file directory. 915 m_deps_filespec->EmplaceBack(dll_name); 916 } 917 } 918 return m_deps_filespec->GetSize(); 919 } 920 921 uint32_t ObjectFilePECOFF::GetDependentModules(FileSpecList &files) { 922 auto num_modules = ParseDependentModules(); 923 auto original_size = files.GetSize(); 924 925 for (unsigned i = 0; i < num_modules; ++i) 926 files.AppendIfUnique(m_deps_filespec->GetFileSpecAtIndex(i)); 927 928 return files.GetSize() - original_size; 929 } 930 931 lldb_private::Address ObjectFilePECOFF::GetEntryPointAddress() { 932 if (m_entry_point_address.IsValid()) 933 return m_entry_point_address; 934 935 if (!ParseHeader() || !IsExecutable()) 936 return m_entry_point_address; 937 938 SectionList *section_list = GetSectionList(); 939 addr_t file_addr = m_coff_header_opt.entry + m_coff_header_opt.image_base; 940 941 if (!section_list) 942 m_entry_point_address.SetOffset(file_addr); 943 else 944 m_entry_point_address.ResolveAddressUsingFileSections(file_addr, 945 section_list); 946 return m_entry_point_address; 947 } 948 949 Address ObjectFilePECOFF::GetBaseAddress() { 950 return Address(GetSectionList()->GetSectionAtIndex(0), 0); 951 } 952 953 // Dump 954 // 955 // Dump the specifics of the runtime file container (such as any headers 956 // segments, sections, etc). 957 void ObjectFilePECOFF::Dump(Stream *s) { 958 ModuleSP module_sp(GetModule()); 959 if (module_sp) { 960 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 961 s->Printf("%p: ", static_cast<void *>(this)); 962 s->Indent(); 963 s->PutCString("ObjectFilePECOFF"); 964 965 ArchSpec header_arch = GetArchitecture(); 966 967 *s << ", file = '" << m_file 968 << "', arch = " << header_arch.GetArchitectureName() << "\n"; 969 970 SectionList *sections = GetSectionList(); 971 if (sections) 972 sections->Dump(s->AsRawOstream(), s->GetIndentLevel(), nullptr, true, 973 UINT32_MAX); 974 975 if (m_symtab_up) 976 m_symtab_up->Dump(s, nullptr, eSortOrderNone); 977 978 if (m_dos_header.e_magic) 979 DumpDOSHeader(s, m_dos_header); 980 if (m_coff_header.machine) { 981 DumpCOFFHeader(s, m_coff_header); 982 if (m_coff_header.hdrsize) 983 DumpOptCOFFHeader(s, m_coff_header_opt); 984 } 985 s->EOL(); 986 DumpSectionHeaders(s); 987 s->EOL(); 988 989 DumpDependentModules(s); 990 s->EOL(); 991 } 992 } 993 994 // DumpDOSHeader 995 // 996 // Dump the MS-DOS header to the specified output stream 997 void ObjectFilePECOFF::DumpDOSHeader(Stream *s, const dos_header_t &header) { 998 s->PutCString("MSDOS Header\n"); 999 s->Printf(" e_magic = 0x%4.4x\n", header.e_magic); 1000 s->Printf(" e_cblp = 0x%4.4x\n", header.e_cblp); 1001 s->Printf(" e_cp = 0x%4.4x\n", header.e_cp); 1002 s->Printf(" e_crlc = 0x%4.4x\n", header.e_crlc); 1003 s->Printf(" e_cparhdr = 0x%4.4x\n", header.e_cparhdr); 1004 s->Printf(" e_minalloc = 0x%4.4x\n", header.e_minalloc); 1005 s->Printf(" e_maxalloc = 0x%4.4x\n", header.e_maxalloc); 1006 s->Printf(" e_ss = 0x%4.4x\n", header.e_ss); 1007 s->Printf(" e_sp = 0x%4.4x\n", header.e_sp); 1008 s->Printf(" e_csum = 0x%4.4x\n", header.e_csum); 1009 s->Printf(" e_ip = 0x%4.4x\n", header.e_ip); 1010 s->Printf(" e_cs = 0x%4.4x\n", header.e_cs); 1011 s->Printf(" e_lfarlc = 0x%4.4x\n", header.e_lfarlc); 1012 s->Printf(" e_ovno = 0x%4.4x\n", header.e_ovno); 1013 s->Printf(" e_res[4] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 1014 header.e_res[0], header.e_res[1], header.e_res[2], header.e_res[3]); 1015 s->Printf(" e_oemid = 0x%4.4x\n", header.e_oemid); 1016 s->Printf(" e_oeminfo = 0x%4.4x\n", header.e_oeminfo); 1017 s->Printf(" e_res2[10] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, " 1018 "0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 1019 header.e_res2[0], header.e_res2[1], header.e_res2[2], 1020 header.e_res2[3], header.e_res2[4], header.e_res2[5], 1021 header.e_res2[6], header.e_res2[7], header.e_res2[8], 1022 header.e_res2[9]); 1023 s->Printf(" e_lfanew = 0x%8.8x\n", header.e_lfanew); 1024 } 1025 1026 // DumpCOFFHeader 1027 // 1028 // Dump the COFF header to the specified output stream 1029 void ObjectFilePECOFF::DumpCOFFHeader(Stream *s, const coff_header_t &header) { 1030 s->PutCString("COFF Header\n"); 1031 s->Printf(" machine = 0x%4.4x\n", header.machine); 1032 s->Printf(" nsects = 0x%4.4x\n", header.nsects); 1033 s->Printf(" modtime = 0x%8.8x\n", header.modtime); 1034 s->Printf(" symoff = 0x%8.8x\n", header.symoff); 1035 s->Printf(" nsyms = 0x%8.8x\n", header.nsyms); 1036 s->Printf(" hdrsize = 0x%4.4x\n", header.hdrsize); 1037 } 1038 1039 // DumpOptCOFFHeader 1040 // 1041 // Dump the optional COFF header to the specified output stream 1042 void ObjectFilePECOFF::DumpOptCOFFHeader(Stream *s, 1043 const coff_opt_header_t &header) { 1044 s->PutCString("Optional COFF Header\n"); 1045 s->Printf(" magic = 0x%4.4x\n", header.magic); 1046 s->Printf(" major_linker_version = 0x%2.2x\n", 1047 header.major_linker_version); 1048 s->Printf(" minor_linker_version = 0x%2.2x\n", 1049 header.minor_linker_version); 1050 s->Printf(" code_size = 0x%8.8x\n", header.code_size); 1051 s->Printf(" data_size = 0x%8.8x\n", header.data_size); 1052 s->Printf(" bss_size = 0x%8.8x\n", header.bss_size); 1053 s->Printf(" entry = 0x%8.8x\n", header.entry); 1054 s->Printf(" code_offset = 0x%8.8x\n", header.code_offset); 1055 s->Printf(" data_offset = 0x%8.8x\n", header.data_offset); 1056 s->Printf(" image_base = 0x%16.16" PRIx64 "\n", 1057 header.image_base); 1058 s->Printf(" sect_alignment = 0x%8.8x\n", header.sect_alignment); 1059 s->Printf(" file_alignment = 0x%8.8x\n", header.file_alignment); 1060 s->Printf(" major_os_system_version = 0x%4.4x\n", 1061 header.major_os_system_version); 1062 s->Printf(" minor_os_system_version = 0x%4.4x\n", 1063 header.minor_os_system_version); 1064 s->Printf(" major_image_version = 0x%4.4x\n", 1065 header.major_image_version); 1066 s->Printf(" minor_image_version = 0x%4.4x\n", 1067 header.minor_image_version); 1068 s->Printf(" major_subsystem_version = 0x%4.4x\n", 1069 header.major_subsystem_version); 1070 s->Printf(" minor_subsystem_version = 0x%4.4x\n", 1071 header.minor_subsystem_version); 1072 s->Printf(" reserved1 = 0x%8.8x\n", header.reserved1); 1073 s->Printf(" image_size = 0x%8.8x\n", header.image_size); 1074 s->Printf(" header_size = 0x%8.8x\n", header.header_size); 1075 s->Printf(" checksum = 0x%8.8x\n", header.checksum); 1076 s->Printf(" subsystem = 0x%4.4x\n", header.subsystem); 1077 s->Printf(" dll_flags = 0x%4.4x\n", header.dll_flags); 1078 s->Printf(" stack_reserve_size = 0x%16.16" PRIx64 "\n", 1079 header.stack_reserve_size); 1080 s->Printf(" stack_commit_size = 0x%16.16" PRIx64 "\n", 1081 header.stack_commit_size); 1082 s->Printf(" heap_reserve_size = 0x%16.16" PRIx64 "\n", 1083 header.heap_reserve_size); 1084 s->Printf(" heap_commit_size = 0x%16.16" PRIx64 "\n", 1085 header.heap_commit_size); 1086 s->Printf(" loader_flags = 0x%8.8x\n", header.loader_flags); 1087 s->Printf(" num_data_dir_entries = 0x%8.8x\n", 1088 (uint32_t)header.data_dirs.size()); 1089 uint32_t i; 1090 for (i = 0; i < header.data_dirs.size(); i++) { 1091 s->Printf(" data_dirs[%2u] vmaddr = 0x%8.8x, vmsize = 0x%8.8x\n", i, 1092 header.data_dirs[i].vmaddr, header.data_dirs[i].vmsize); 1093 } 1094 } 1095 // DumpSectionHeader 1096 // 1097 // Dump a single ELF section header to the specified output stream 1098 void ObjectFilePECOFF::DumpSectionHeader(Stream *s, 1099 const section_header_t &sh) { 1100 std::string name = std::string(GetSectionName(sh)); 1101 s->Printf("%-16s 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%4.4x " 1102 "0x%4.4x 0x%8.8x\n", 1103 name.c_str(), sh.vmaddr, sh.vmsize, sh.offset, sh.size, sh.reloff, 1104 sh.lineoff, sh.nreloc, sh.nline, sh.flags); 1105 } 1106 1107 // DumpSectionHeaders 1108 // 1109 // Dump all of the ELF section header to the specified output stream 1110 void ObjectFilePECOFF::DumpSectionHeaders(Stream *s) { 1111 1112 s->PutCString("Section Headers\n"); 1113 s->PutCString("IDX name vm addr vm size file off file " 1114 "size reloc off line off nreloc nline flags\n"); 1115 s->PutCString("==== ---------------- ---------- ---------- ---------- " 1116 "---------- ---------- ---------- ------ ------ ----------\n"); 1117 1118 uint32_t idx = 0; 1119 SectionHeaderCollIter pos, end = m_sect_headers.end(); 1120 1121 for (pos = m_sect_headers.begin(); pos != end; ++pos, ++idx) { 1122 s->Printf("[%2u] ", idx); 1123 ObjectFilePECOFF::DumpSectionHeader(s, *pos); 1124 } 1125 } 1126 1127 // DumpDependentModules 1128 // 1129 // Dump all of the dependent modules to the specified output stream 1130 void ObjectFilePECOFF::DumpDependentModules(lldb_private::Stream *s) { 1131 auto num_modules = ParseDependentModules(); 1132 if (num_modules > 0) { 1133 s->PutCString("Dependent Modules\n"); 1134 for (unsigned i = 0; i < num_modules; ++i) { 1135 auto spec = m_deps_filespec->GetFileSpecAtIndex(i); 1136 s->Printf(" %s\n", spec.GetFilename().GetCString()); 1137 } 1138 } 1139 } 1140 1141 bool ObjectFilePECOFF::IsWindowsSubsystem() { 1142 switch (m_coff_header_opt.subsystem) { 1143 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE: 1144 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_GUI: 1145 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CUI: 1146 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE_WINDOWS: 1147 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CE_GUI: 1148 case llvm::COFF::IMAGE_SUBSYSTEM_XBOX: 1149 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_BOOT_APPLICATION: 1150 return true; 1151 default: 1152 return false; 1153 } 1154 } 1155 1156 ArchSpec ObjectFilePECOFF::GetArchitecture() { 1157 uint16_t machine = m_coff_header.machine; 1158 switch (machine) { 1159 default: 1160 break; 1161 case llvm::COFF::IMAGE_FILE_MACHINE_AMD64: 1162 case llvm::COFF::IMAGE_FILE_MACHINE_I386: 1163 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPC: 1164 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPCFP: 1165 case llvm::COFF::IMAGE_FILE_MACHINE_ARM: 1166 case llvm::COFF::IMAGE_FILE_MACHINE_ARMNT: 1167 case llvm::COFF::IMAGE_FILE_MACHINE_THUMB: 1168 case llvm::COFF::IMAGE_FILE_MACHINE_ARM64: 1169 ArchSpec arch; 1170 arch.SetArchitecture(eArchTypeCOFF, machine, LLDB_INVALID_CPUTYPE, 1171 IsWindowsSubsystem() ? llvm::Triple::Win32 1172 : llvm::Triple::UnknownOS); 1173 return arch; 1174 } 1175 return ArchSpec(); 1176 } 1177 1178 ObjectFile::Type ObjectFilePECOFF::CalculateType() { 1179 if (m_coff_header.machine != 0) { 1180 if ((m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0) 1181 return eTypeExecutable; 1182 else 1183 return eTypeSharedLibrary; 1184 } 1185 return eTypeExecutable; 1186 } 1187 1188 ObjectFile::Strata ObjectFilePECOFF::CalculateStrata() { return eStrataUser; } 1189