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/Log.h" 27 #include "lldb/Utility/StreamString.h" 28 #include "lldb/Utility/Timer.h" 29 #include "lldb/Utility/UUID.h" 30 #include "llvm/BinaryFormat/COFF.h" 31 32 #include "llvm/Object/COFFImportFile.h" 33 #include "llvm/Support/Error.h" 34 #include "llvm/Support/MemoryBuffer.h" 35 36 #define IMAGE_DOS_SIGNATURE 0x5A4D // MZ 37 #define IMAGE_NT_SIGNATURE 0x00004550 // PE00 38 #define OPT_HEADER_MAGIC_PE32 0x010b 39 #define OPT_HEADER_MAGIC_PE32_PLUS 0x020b 40 41 using namespace lldb; 42 using namespace lldb_private; 43 44 LLDB_PLUGIN_DEFINE(ObjectFilePECOFF) 45 46 static UUID GetCoffUUID(llvm::object::COFFObjectFile &coff_obj) { 47 const llvm::codeview::DebugInfo *pdb_info = nullptr; 48 llvm::StringRef pdb_file; 49 50 if (!coff_obj.getDebugPDBInfo(pdb_info, pdb_file) && pdb_info) { 51 if (pdb_info->PDB70.CVSignature == llvm::OMF::Signature::PDB70) { 52 UUID::CvRecordPdb70 info; 53 memcpy(&info.Uuid, pdb_info->PDB70.Signature, sizeof(info.Uuid)); 54 info.Age = pdb_info->PDB70.Age; 55 return UUID::fromCvRecord(info); 56 } 57 } 58 59 return UUID(); 60 } 61 62 char ObjectFilePECOFF::ID; 63 64 void ObjectFilePECOFF::Initialize() { 65 PluginManager::RegisterPlugin( 66 GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance, 67 CreateMemoryInstance, GetModuleSpecifications, SaveCore); 68 } 69 70 void ObjectFilePECOFF::Terminate() { 71 PluginManager::UnregisterPlugin(CreateInstance); 72 } 73 74 lldb_private::ConstString ObjectFilePECOFF::GetPluginNameStatic() { 75 static ConstString g_name("pe-coff"); 76 return g_name; 77 } 78 79 const char *ObjectFilePECOFF::GetPluginDescriptionStatic() { 80 return "Portable Executable and Common Object File Format object file reader " 81 "(32 and 64 bit)"; 82 } 83 84 ObjectFile *ObjectFilePECOFF::CreateInstance(const lldb::ModuleSP &module_sp, 85 DataBufferSP &data_sp, 86 lldb::offset_t data_offset, 87 const lldb_private::FileSpec *file_p, 88 lldb::offset_t file_offset, 89 lldb::offset_t length) { 90 FileSpec file = file_p ? *file_p : FileSpec(); 91 if (!data_sp) { 92 data_sp = MapFileData(file, length, file_offset); 93 if (!data_sp) 94 return nullptr; 95 data_offset = 0; 96 } 97 98 if (!ObjectFilePECOFF::MagicBytesMatch(data_sp)) 99 return nullptr; 100 101 // Update the data to contain the entire file if it doesn't already 102 if (data_sp->GetByteSize() < length) { 103 data_sp = MapFileData(file, length, file_offset); 104 if (!data_sp) 105 return nullptr; 106 } 107 108 auto objfile_up = std::make_unique<ObjectFilePECOFF>( 109 module_sp, data_sp, data_offset, file_p, file_offset, length); 110 if (!objfile_up || !objfile_up->ParseHeader()) 111 return nullptr; 112 113 // Cache coff binary. 114 if (!objfile_up->CreateBinary()) 115 return nullptr; 116 return objfile_up.release(); 117 } 118 119 ObjectFile *ObjectFilePECOFF::CreateMemoryInstance( 120 const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, 121 const lldb::ProcessSP &process_sp, lldb::addr_t header_addr) { 122 if (!data_sp || !ObjectFilePECOFF::MagicBytesMatch(data_sp)) 123 return nullptr; 124 auto objfile_up = std::make_unique<ObjectFilePECOFF>( 125 module_sp, data_sp, process_sp, header_addr); 126 if (objfile_up.get() && objfile_up->ParseHeader()) { 127 return objfile_up.release(); 128 } 129 return nullptr; 130 } 131 132 size_t ObjectFilePECOFF::GetModuleSpecifications( 133 const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp, 134 lldb::offset_t data_offset, lldb::offset_t file_offset, 135 lldb::offset_t length, lldb_private::ModuleSpecList &specs) { 136 const size_t initial_count = specs.GetSize(); 137 if (!data_sp || !ObjectFilePECOFF::MagicBytesMatch(data_sp)) 138 return initial_count; 139 140 Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT)); 141 142 if (data_sp->GetByteSize() < length) 143 if (DataBufferSP full_sp = MapFileData(file, -1, file_offset)) 144 data_sp = std::move(full_sp); 145 auto binary = llvm::object::createBinary(llvm::MemoryBufferRef( 146 toStringRef(data_sp->GetData()), file.GetFilename().GetStringRef())); 147 148 if (!binary) { 149 LLDB_LOG_ERROR(log, binary.takeError(), 150 "Failed to create binary for file ({1}): {0}", file); 151 return initial_count; 152 } 153 154 auto *COFFObj = llvm::dyn_cast<llvm::object::COFFObjectFile>(binary->get()); 155 if (!COFFObj) 156 return initial_count; 157 158 ModuleSpec module_spec(file); 159 ArchSpec &spec = module_spec.GetArchitecture(); 160 lldb_private::UUID &uuid = module_spec.GetUUID(); 161 if (!uuid.IsValid()) 162 uuid = GetCoffUUID(*COFFObj); 163 164 switch (COFFObj->getMachine()) { 165 case MachineAmd64: 166 spec.SetTriple("x86_64-pc-windows"); 167 specs.Append(module_spec); 168 break; 169 case MachineX86: 170 spec.SetTriple("i386-pc-windows"); 171 specs.Append(module_spec); 172 spec.SetTriple("i686-pc-windows"); 173 specs.Append(module_spec); 174 break; 175 case MachineArmNt: 176 spec.SetTriple("armv7-pc-windows"); 177 specs.Append(module_spec); 178 break; 179 case MachineArm64: 180 spec.SetTriple("aarch64-pc-windows"); 181 specs.Append(module_spec); 182 break; 183 default: 184 break; 185 } 186 187 return specs.GetSize() - initial_count; 188 } 189 190 bool ObjectFilePECOFF::SaveCore(const lldb::ProcessSP &process_sp, 191 const lldb_private::FileSpec &outfile, 192 lldb::SaveCoreStyle &core_style, 193 lldb_private::Status &error) { 194 core_style = eSaveCoreFull; 195 return SaveMiniDump(process_sp, outfile, error); 196 } 197 198 bool ObjectFilePECOFF::MagicBytesMatch(DataBufferSP &data_sp) { 199 DataExtractor data(data_sp, eByteOrderLittle, 4); 200 lldb::offset_t offset = 0; 201 uint16_t magic = data.GetU16(&offset); 202 return magic == IMAGE_DOS_SIGNATURE; 203 } 204 205 lldb::SymbolType ObjectFilePECOFF::MapSymbolType(uint16_t coff_symbol_type) { 206 // TODO: We need to complete this mapping of COFF symbol types to LLDB ones. 207 // For now, here's a hack to make sure our function have types. 208 const auto complex_type = 209 coff_symbol_type >> llvm::COFF::SCT_COMPLEX_TYPE_SHIFT; 210 if (complex_type == llvm::COFF::IMAGE_SYM_DTYPE_FUNCTION) { 211 return lldb::eSymbolTypeCode; 212 } 213 return lldb::eSymbolTypeInvalid; 214 } 215 216 bool ObjectFilePECOFF::CreateBinary() { 217 if (m_binary) 218 return true; 219 220 Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT)); 221 222 auto binary = llvm::object::createBinary(llvm::MemoryBufferRef( 223 toStringRef(m_data.GetData()), m_file.GetFilename().GetStringRef())); 224 if (!binary) { 225 LLDB_LOG_ERROR(log, binary.takeError(), 226 "Failed to create binary for file ({1}): {0}", m_file); 227 return false; 228 } 229 230 // Make sure we only handle COFF format. 231 m_binary = 232 llvm::unique_dyn_cast<llvm::object::COFFObjectFile>(std::move(*binary)); 233 if (!m_binary) 234 return false; 235 236 LLDB_LOG(log, "this = {0}, module = {1} ({2}), file = {3}, binary = {4}", 237 this, GetModule().get(), GetModule()->GetSpecificationDescription(), 238 m_file.GetPath(), m_binary.get()); 239 return true; 240 } 241 242 ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 243 DataBufferSP &data_sp, 244 lldb::offset_t data_offset, 245 const FileSpec *file, 246 lldb::offset_t file_offset, 247 lldb::offset_t length) 248 : ObjectFile(module_sp, file, file_offset, length, data_sp, data_offset), 249 m_dos_header(), m_coff_header(), m_sect_headers(), 250 m_entry_point_address(), m_deps_filespec() { 251 ::memset(&m_dos_header, 0, sizeof(m_dos_header)); 252 ::memset(&m_coff_header, 0, sizeof(m_coff_header)); 253 } 254 255 ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 256 DataBufferSP &header_data_sp, 257 const lldb::ProcessSP &process_sp, 258 addr_t header_addr) 259 : ObjectFile(module_sp, process_sp, header_addr, header_data_sp), 260 m_dos_header(), m_coff_header(), m_sect_headers(), 261 m_entry_point_address(), m_deps_filespec() { 262 ::memset(&m_dos_header, 0, sizeof(m_dos_header)); 263 ::memset(&m_coff_header, 0, sizeof(m_coff_header)); 264 } 265 266 ObjectFilePECOFF::~ObjectFilePECOFF() = default; 267 268 bool ObjectFilePECOFF::ParseHeader() { 269 ModuleSP module_sp(GetModule()); 270 if (module_sp) { 271 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 272 m_sect_headers.clear(); 273 m_data.SetByteOrder(eByteOrderLittle); 274 lldb::offset_t offset = 0; 275 276 if (ParseDOSHeader(m_data, m_dos_header)) { 277 offset = m_dos_header.e_lfanew; 278 uint32_t pe_signature = m_data.GetU32(&offset); 279 if (pe_signature != IMAGE_NT_SIGNATURE) 280 return false; 281 if (ParseCOFFHeader(m_data, &offset, m_coff_header)) { 282 if (m_coff_header.hdrsize > 0) 283 ParseCOFFOptionalHeader(&offset); 284 ParseSectionHeaders(offset); 285 } 286 m_data.SetAddressByteSize(GetAddressByteSize()); 287 return true; 288 } 289 } 290 return false; 291 } 292 293 bool ObjectFilePECOFF::SetLoadAddress(Target &target, addr_t value, 294 bool value_is_offset) { 295 bool changed = false; 296 ModuleSP module_sp = GetModule(); 297 if (module_sp) { 298 size_t num_loaded_sections = 0; 299 SectionList *section_list = GetSectionList(); 300 if (section_list) { 301 if (!value_is_offset) { 302 value -= m_image_base; 303 } 304 305 const size_t num_sections = section_list->GetSize(); 306 size_t sect_idx = 0; 307 308 for (sect_idx = 0; sect_idx < num_sections; ++sect_idx) { 309 // Iterate through the object file sections to find all of the sections 310 // that have SHF_ALLOC in their flag bits. 311 SectionSP section_sp(section_list->GetSectionAtIndex(sect_idx)); 312 if (section_sp && !section_sp->IsThreadSpecific()) { 313 if (target.GetSectionLoadList().SetSectionLoadAddress( 314 section_sp, section_sp->GetFileAddress() + value)) 315 ++num_loaded_sections; 316 } 317 } 318 changed = num_loaded_sections > 0; 319 } 320 } 321 return changed; 322 } 323 324 ByteOrder ObjectFilePECOFF::GetByteOrder() const { return eByteOrderLittle; } 325 326 bool ObjectFilePECOFF::IsExecutable() const { 327 return (m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0; 328 } 329 330 uint32_t ObjectFilePECOFF::GetAddressByteSize() const { 331 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32_PLUS) 332 return 8; 333 else if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) 334 return 4; 335 return 4; 336 } 337 338 // NeedsEndianSwap 339 // 340 // Return true if an endian swap needs to occur when extracting data from this 341 // file. 342 bool ObjectFilePECOFF::NeedsEndianSwap() const { 343 #if defined(__LITTLE_ENDIAN__) 344 return false; 345 #else 346 return true; 347 #endif 348 } 349 // ParseDOSHeader 350 bool ObjectFilePECOFF::ParseDOSHeader(DataExtractor &data, 351 dos_header_t &dos_header) { 352 bool success = false; 353 lldb::offset_t offset = 0; 354 success = data.ValidOffsetForDataOfSize(0, sizeof(dos_header)); 355 356 if (success) { 357 dos_header.e_magic = data.GetU16(&offset); // Magic number 358 success = dos_header.e_magic == IMAGE_DOS_SIGNATURE; 359 360 if (success) { 361 dos_header.e_cblp = data.GetU16(&offset); // Bytes on last page of file 362 dos_header.e_cp = data.GetU16(&offset); // Pages in file 363 dos_header.e_crlc = data.GetU16(&offset); // Relocations 364 dos_header.e_cparhdr = 365 data.GetU16(&offset); // Size of header in paragraphs 366 dos_header.e_minalloc = 367 data.GetU16(&offset); // Minimum extra paragraphs needed 368 dos_header.e_maxalloc = 369 data.GetU16(&offset); // Maximum extra paragraphs needed 370 dos_header.e_ss = data.GetU16(&offset); // Initial (relative) SS value 371 dos_header.e_sp = data.GetU16(&offset); // Initial SP value 372 dos_header.e_csum = data.GetU16(&offset); // Checksum 373 dos_header.e_ip = data.GetU16(&offset); // Initial IP value 374 dos_header.e_cs = data.GetU16(&offset); // Initial (relative) CS value 375 dos_header.e_lfarlc = 376 data.GetU16(&offset); // File address of relocation table 377 dos_header.e_ovno = data.GetU16(&offset); // Overlay number 378 379 dos_header.e_res[0] = data.GetU16(&offset); // Reserved words 380 dos_header.e_res[1] = data.GetU16(&offset); // Reserved words 381 dos_header.e_res[2] = data.GetU16(&offset); // Reserved words 382 dos_header.e_res[3] = data.GetU16(&offset); // Reserved words 383 384 dos_header.e_oemid = 385 data.GetU16(&offset); // OEM identifier (for e_oeminfo) 386 dos_header.e_oeminfo = 387 data.GetU16(&offset); // OEM information; e_oemid specific 388 dos_header.e_res2[0] = data.GetU16(&offset); // Reserved words 389 dos_header.e_res2[1] = data.GetU16(&offset); // Reserved words 390 dos_header.e_res2[2] = data.GetU16(&offset); // Reserved words 391 dos_header.e_res2[3] = data.GetU16(&offset); // Reserved words 392 dos_header.e_res2[4] = data.GetU16(&offset); // Reserved words 393 dos_header.e_res2[5] = data.GetU16(&offset); // Reserved words 394 dos_header.e_res2[6] = data.GetU16(&offset); // Reserved words 395 dos_header.e_res2[7] = data.GetU16(&offset); // Reserved words 396 dos_header.e_res2[8] = data.GetU16(&offset); // Reserved words 397 dos_header.e_res2[9] = data.GetU16(&offset); // Reserved words 398 399 dos_header.e_lfanew = 400 data.GetU32(&offset); // File address of new exe header 401 } 402 } 403 if (!success) 404 memset(&dos_header, 0, sizeof(dos_header)); 405 return success; 406 } 407 408 // ParserCOFFHeader 409 bool ObjectFilePECOFF::ParseCOFFHeader(DataExtractor &data, 410 lldb::offset_t *offset_ptr, 411 coff_header_t &coff_header) { 412 bool success = 413 data.ValidOffsetForDataOfSize(*offset_ptr, sizeof(coff_header)); 414 if (success) { 415 coff_header.machine = data.GetU16(offset_ptr); 416 coff_header.nsects = data.GetU16(offset_ptr); 417 coff_header.modtime = data.GetU32(offset_ptr); 418 coff_header.symoff = data.GetU32(offset_ptr); 419 coff_header.nsyms = data.GetU32(offset_ptr); 420 coff_header.hdrsize = data.GetU16(offset_ptr); 421 coff_header.flags = data.GetU16(offset_ptr); 422 } 423 if (!success) 424 memset(&coff_header, 0, sizeof(coff_header)); 425 return success; 426 } 427 428 bool ObjectFilePECOFF::ParseCOFFOptionalHeader(lldb::offset_t *offset_ptr) { 429 bool success = false; 430 const lldb::offset_t end_offset = *offset_ptr + m_coff_header.hdrsize; 431 if (*offset_ptr < end_offset) { 432 success = true; 433 m_coff_header_opt.magic = m_data.GetU16(offset_ptr); 434 m_coff_header_opt.major_linker_version = m_data.GetU8(offset_ptr); 435 m_coff_header_opt.minor_linker_version = m_data.GetU8(offset_ptr); 436 m_coff_header_opt.code_size = m_data.GetU32(offset_ptr); 437 m_coff_header_opt.data_size = m_data.GetU32(offset_ptr); 438 m_coff_header_opt.bss_size = m_data.GetU32(offset_ptr); 439 m_coff_header_opt.entry = m_data.GetU32(offset_ptr); 440 m_coff_header_opt.code_offset = m_data.GetU32(offset_ptr); 441 442 const uint32_t addr_byte_size = GetAddressByteSize(); 443 444 if (*offset_ptr < end_offset) { 445 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) { 446 // PE32 only 447 m_coff_header_opt.data_offset = m_data.GetU32(offset_ptr); 448 } else 449 m_coff_header_opt.data_offset = 0; 450 451 if (*offset_ptr < end_offset) { 452 m_coff_header_opt.image_base = 453 m_data.GetMaxU64(offset_ptr, addr_byte_size); 454 m_coff_header_opt.sect_alignment = m_data.GetU32(offset_ptr); 455 m_coff_header_opt.file_alignment = m_data.GetU32(offset_ptr); 456 m_coff_header_opt.major_os_system_version = m_data.GetU16(offset_ptr); 457 m_coff_header_opt.minor_os_system_version = m_data.GetU16(offset_ptr); 458 m_coff_header_opt.major_image_version = m_data.GetU16(offset_ptr); 459 m_coff_header_opt.minor_image_version = m_data.GetU16(offset_ptr); 460 m_coff_header_opt.major_subsystem_version = m_data.GetU16(offset_ptr); 461 m_coff_header_opt.minor_subsystem_version = m_data.GetU16(offset_ptr); 462 m_coff_header_opt.reserved1 = m_data.GetU32(offset_ptr); 463 m_coff_header_opt.image_size = m_data.GetU32(offset_ptr); 464 m_coff_header_opt.header_size = m_data.GetU32(offset_ptr); 465 m_coff_header_opt.checksum = m_data.GetU32(offset_ptr); 466 m_coff_header_opt.subsystem = m_data.GetU16(offset_ptr); 467 m_coff_header_opt.dll_flags = m_data.GetU16(offset_ptr); 468 m_coff_header_opt.stack_reserve_size = 469 m_data.GetMaxU64(offset_ptr, addr_byte_size); 470 m_coff_header_opt.stack_commit_size = 471 m_data.GetMaxU64(offset_ptr, addr_byte_size); 472 m_coff_header_opt.heap_reserve_size = 473 m_data.GetMaxU64(offset_ptr, addr_byte_size); 474 m_coff_header_opt.heap_commit_size = 475 m_data.GetMaxU64(offset_ptr, addr_byte_size); 476 m_coff_header_opt.loader_flags = m_data.GetU32(offset_ptr); 477 uint32_t num_data_dir_entries = m_data.GetU32(offset_ptr); 478 m_coff_header_opt.data_dirs.clear(); 479 m_coff_header_opt.data_dirs.resize(num_data_dir_entries); 480 uint32_t i; 481 for (i = 0; i < num_data_dir_entries; i++) { 482 m_coff_header_opt.data_dirs[i].vmaddr = m_data.GetU32(offset_ptr); 483 m_coff_header_opt.data_dirs[i].vmsize = m_data.GetU32(offset_ptr); 484 } 485 486 m_image_base = m_coff_header_opt.image_base; 487 } 488 } 489 } 490 // Make sure we are on track for section data which follows 491 *offset_ptr = end_offset; 492 return success; 493 } 494 495 uint32_t ObjectFilePECOFF::GetRVA(const Address &addr) const { 496 return addr.GetFileAddress() - m_image_base; 497 } 498 499 Address ObjectFilePECOFF::GetAddress(uint32_t rva) { 500 SectionList *sect_list = GetSectionList(); 501 if (!sect_list) 502 return Address(GetFileAddress(rva)); 503 504 return Address(GetFileAddress(rva), sect_list); 505 } 506 507 lldb::addr_t ObjectFilePECOFF::GetFileAddress(uint32_t rva) const { 508 return m_image_base + rva; 509 } 510 511 DataExtractor ObjectFilePECOFF::ReadImageData(uint32_t offset, size_t size) { 512 if (!size) 513 return {}; 514 515 if (m_data.ValidOffsetForDataOfSize(offset, size)) 516 return DataExtractor(m_data, offset, size); 517 518 ProcessSP process_sp(m_process_wp.lock()); 519 DataExtractor data; 520 if (process_sp) { 521 auto data_up = std::make_unique<DataBufferHeap>(size, 0); 522 Status readmem_error; 523 size_t bytes_read = 524 process_sp->ReadMemory(m_image_base + offset, data_up->GetBytes(), 525 data_up->GetByteSize(), readmem_error); 526 if (bytes_read == size) { 527 DataBufferSP buffer_sp(data_up.release()); 528 data.SetData(buffer_sp, 0, buffer_sp->GetByteSize()); 529 } 530 } 531 return data; 532 } 533 534 DataExtractor ObjectFilePECOFF::ReadImageDataByRVA(uint32_t rva, size_t size) { 535 Address addr = GetAddress(rva); 536 SectionSP sect = addr.GetSection(); 537 if (!sect) 538 return {}; 539 rva = sect->GetFileOffset() + addr.GetOffset(); 540 541 return ReadImageData(rva, size); 542 } 543 544 // ParseSectionHeaders 545 bool ObjectFilePECOFF::ParseSectionHeaders( 546 uint32_t section_header_data_offset) { 547 const uint32_t nsects = m_coff_header.nsects; 548 m_sect_headers.clear(); 549 550 if (nsects > 0) { 551 const size_t section_header_byte_size = nsects * sizeof(section_header_t); 552 DataExtractor section_header_data = 553 ReadImageData(section_header_data_offset, section_header_byte_size); 554 555 lldb::offset_t offset = 0; 556 if (section_header_data.ValidOffsetForDataOfSize( 557 offset, section_header_byte_size)) { 558 m_sect_headers.resize(nsects); 559 560 for (uint32_t idx = 0; idx < nsects; ++idx) { 561 const void *name_data = section_header_data.GetData(&offset, 8); 562 if (name_data) { 563 memcpy(m_sect_headers[idx].name, name_data, 8); 564 m_sect_headers[idx].vmsize = section_header_data.GetU32(&offset); 565 m_sect_headers[idx].vmaddr = section_header_data.GetU32(&offset); 566 m_sect_headers[idx].size = section_header_data.GetU32(&offset); 567 m_sect_headers[idx].offset = section_header_data.GetU32(&offset); 568 m_sect_headers[idx].reloff = section_header_data.GetU32(&offset); 569 m_sect_headers[idx].lineoff = section_header_data.GetU32(&offset); 570 m_sect_headers[idx].nreloc = section_header_data.GetU16(&offset); 571 m_sect_headers[idx].nline = section_header_data.GetU16(&offset); 572 m_sect_headers[idx].flags = section_header_data.GetU32(&offset); 573 } 574 } 575 } 576 } 577 578 return !m_sect_headers.empty(); 579 } 580 581 llvm::StringRef ObjectFilePECOFF::GetSectionName(const section_header_t §) { 582 llvm::StringRef hdr_name(sect.name, llvm::array_lengthof(sect.name)); 583 hdr_name = hdr_name.split('\0').first; 584 if (hdr_name.consume_front("/")) { 585 lldb::offset_t stroff; 586 if (!to_integer(hdr_name, stroff, 10)) 587 return ""; 588 lldb::offset_t string_file_offset = 589 m_coff_header.symoff + (m_coff_header.nsyms * 18) + stroff; 590 if (const char *name = m_data.GetCStr(&string_file_offset)) 591 return name; 592 return ""; 593 } 594 return hdr_name; 595 } 596 597 // GetNListSymtab 598 Symtab *ObjectFilePECOFF::GetSymtab() { 599 ModuleSP module_sp(GetModule()); 600 if (module_sp) { 601 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 602 if (m_symtab_up == nullptr) { 603 SectionList *sect_list = GetSectionList(); 604 m_symtab_up = std::make_unique<Symtab>(this); 605 std::lock_guard<std::recursive_mutex> guard(m_symtab_up->GetMutex()); 606 607 const uint32_t num_syms = m_coff_header.nsyms; 608 609 if (m_file && num_syms > 0 && m_coff_header.symoff > 0) { 610 const uint32_t symbol_size = 18; 611 const size_t symbol_data_size = num_syms * symbol_size; 612 // Include the 4-byte string table size at the end of the symbols 613 DataExtractor symtab_data = 614 ReadImageData(m_coff_header.symoff, symbol_data_size + 4); 615 lldb::offset_t offset = symbol_data_size; 616 const uint32_t strtab_size = symtab_data.GetU32(&offset); 617 if (strtab_size > 0) { 618 DataExtractor strtab_data = ReadImageData( 619 m_coff_header.symoff + symbol_data_size, strtab_size); 620 621 offset = 0; 622 std::string symbol_name; 623 Symbol *symbols = m_symtab_up->Resize(num_syms); 624 for (uint32_t i = 0; i < num_syms; ++i) { 625 coff_symbol_t symbol; 626 const uint32_t symbol_offset = offset; 627 const char *symbol_name_cstr = nullptr; 628 // If the first 4 bytes of the symbol string are zero, then they 629 // are followed by a 4-byte string table offset. Else these 630 // 8 bytes contain the symbol name 631 if (symtab_data.GetU32(&offset) == 0) { 632 // Long string that doesn't fit into the symbol table name, so 633 // now we must read the 4 byte string table offset 634 uint32_t strtab_offset = symtab_data.GetU32(&offset); 635 symbol_name_cstr = strtab_data.PeekCStr(strtab_offset); 636 symbol_name.assign(symbol_name_cstr); 637 } else { 638 // Short string that fits into the symbol table name which is 8 639 // bytes 640 offset += sizeof(symbol.name) - 4; // Skip remaining 641 symbol_name_cstr = symtab_data.PeekCStr(symbol_offset); 642 if (symbol_name_cstr == nullptr) 643 break; 644 symbol_name.assign(symbol_name_cstr, sizeof(symbol.name)); 645 } 646 symbol.value = symtab_data.GetU32(&offset); 647 symbol.sect = symtab_data.GetU16(&offset); 648 symbol.type = symtab_data.GetU16(&offset); 649 symbol.storage = symtab_data.GetU8(&offset); 650 symbol.naux = symtab_data.GetU8(&offset); 651 symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str())); 652 if ((int16_t)symbol.sect >= 1) { 653 Address symbol_addr(sect_list->FindSectionByID(symbol.sect), 654 symbol.value); 655 symbols[i].GetAddressRef() = symbol_addr; 656 symbols[i].SetType(MapSymbolType(symbol.type)); 657 } 658 659 if (symbol.naux > 0) { 660 i += symbol.naux; 661 offset += symbol.naux * symbol_size; 662 } 663 } 664 } 665 } 666 667 // Read export header 668 if (coff_data_dir_export_table < m_coff_header_opt.data_dirs.size() && 669 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmsize > 0 && 670 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr > 0) { 671 export_directory_entry export_table; 672 uint32_t data_start = 673 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr; 674 675 DataExtractor symtab_data = ReadImageDataByRVA( 676 data_start, m_coff_header_opt.data_dirs[0].vmsize); 677 lldb::offset_t offset = 0; 678 679 // Read export_table header 680 export_table.characteristics = symtab_data.GetU32(&offset); 681 export_table.time_date_stamp = symtab_data.GetU32(&offset); 682 export_table.major_version = symtab_data.GetU16(&offset); 683 export_table.minor_version = symtab_data.GetU16(&offset); 684 export_table.name = symtab_data.GetU32(&offset); 685 export_table.base = symtab_data.GetU32(&offset); 686 export_table.number_of_functions = symtab_data.GetU32(&offset); 687 export_table.number_of_names = symtab_data.GetU32(&offset); 688 export_table.address_of_functions = symtab_data.GetU32(&offset); 689 export_table.address_of_names = symtab_data.GetU32(&offset); 690 export_table.address_of_name_ordinals = symtab_data.GetU32(&offset); 691 692 bool has_ordinal = export_table.address_of_name_ordinals != 0; 693 694 lldb::offset_t name_offset = export_table.address_of_names - data_start; 695 lldb::offset_t name_ordinal_offset = 696 export_table.address_of_name_ordinals - data_start; 697 698 Symbol *symbols = m_symtab_up->Resize(export_table.number_of_names); 699 700 std::string symbol_name; 701 702 // Read each export table entry 703 for (size_t i = 0; i < export_table.number_of_names; ++i) { 704 uint32_t name_ordinal = 705 has_ordinal ? symtab_data.GetU16(&name_ordinal_offset) : i; 706 uint32_t name_address = symtab_data.GetU32(&name_offset); 707 708 const char *symbol_name_cstr = 709 symtab_data.PeekCStr(name_address - data_start); 710 symbol_name.assign(symbol_name_cstr); 711 712 lldb::offset_t function_offset = export_table.address_of_functions - 713 data_start + 714 sizeof(uint32_t) * name_ordinal; 715 uint32_t function_rva = symtab_data.GetU32(&function_offset); 716 717 Address symbol_addr(m_coff_header_opt.image_base + function_rva, 718 sect_list); 719 symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str())); 720 symbols[i].GetAddressRef() = symbol_addr; 721 symbols[i].SetType(lldb::eSymbolTypeCode); 722 symbols[i].SetDebug(true); 723 } 724 } 725 m_symtab_up->CalculateSymbolSizes(); 726 } 727 } 728 return m_symtab_up.get(); 729 } 730 731 std::unique_ptr<CallFrameInfo> ObjectFilePECOFF::CreateCallFrameInfo() { 732 if (coff_data_dir_exception_table >= m_coff_header_opt.data_dirs.size()) 733 return {}; 734 735 data_directory data_dir_exception = 736 m_coff_header_opt.data_dirs[coff_data_dir_exception_table]; 737 if (!data_dir_exception.vmaddr) 738 return {}; 739 740 if (m_coff_header.machine != llvm::COFF::IMAGE_FILE_MACHINE_AMD64) 741 return {}; 742 743 return std::make_unique<PECallFrameInfo>(*this, data_dir_exception.vmaddr, 744 data_dir_exception.vmsize); 745 } 746 747 bool ObjectFilePECOFF::IsStripped() { 748 // TODO: determine this for COFF 749 return false; 750 } 751 752 SectionType ObjectFilePECOFF::GetSectionType(llvm::StringRef sect_name, 753 const section_header_t §) { 754 ConstString const_sect_name(sect_name); 755 static ConstString g_code_sect_name(".code"); 756 static ConstString g_CODE_sect_name("CODE"); 757 static ConstString g_data_sect_name(".data"); 758 static ConstString g_DATA_sect_name("DATA"); 759 static ConstString g_bss_sect_name(".bss"); 760 static ConstString g_BSS_sect_name("BSS"); 761 762 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_CODE && 763 ((const_sect_name == g_code_sect_name) || 764 (const_sect_name == g_CODE_sect_name))) { 765 return eSectionTypeCode; 766 } 767 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA && 768 ((const_sect_name == g_data_sect_name) || 769 (const_sect_name == g_DATA_sect_name))) { 770 if (sect.size == 0 && sect.offset == 0) 771 return eSectionTypeZeroFill; 772 else 773 return eSectionTypeData; 774 } 775 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA && 776 ((const_sect_name == g_bss_sect_name) || 777 (const_sect_name == g_BSS_sect_name))) { 778 if (sect.size == 0) 779 return eSectionTypeZeroFill; 780 else 781 return eSectionTypeData; 782 } 783 784 SectionType section_type = 785 llvm::StringSwitch<SectionType>(sect_name) 786 .Case(".debug", eSectionTypeDebug) 787 .Case(".stabstr", eSectionTypeDataCString) 788 .Case(".reloc", eSectionTypeOther) 789 .Case(".debug_abbrev", eSectionTypeDWARFDebugAbbrev) 790 .Case(".debug_aranges", eSectionTypeDWARFDebugAranges) 791 .Case(".debug_frame", eSectionTypeDWARFDebugFrame) 792 .Case(".debug_info", eSectionTypeDWARFDebugInfo) 793 .Case(".debug_line", eSectionTypeDWARFDebugLine) 794 .Case(".debug_loc", eSectionTypeDWARFDebugLoc) 795 .Case(".debug_loclists", eSectionTypeDWARFDebugLocLists) 796 .Case(".debug_macinfo", eSectionTypeDWARFDebugMacInfo) 797 .Case(".debug_names", eSectionTypeDWARFDebugNames) 798 .Case(".debug_pubnames", eSectionTypeDWARFDebugPubNames) 799 .Case(".debug_pubtypes", eSectionTypeDWARFDebugPubTypes) 800 .Case(".debug_ranges", eSectionTypeDWARFDebugRanges) 801 .Case(".debug_str", eSectionTypeDWARFDebugStr) 802 .Case(".debug_types", eSectionTypeDWARFDebugTypes) 803 // .eh_frame can be truncated to 8 chars. 804 .Cases(".eh_frame", ".eh_fram", eSectionTypeEHFrame) 805 .Case(".gosymtab", eSectionTypeGoSymtab) 806 .Default(eSectionTypeInvalid); 807 if (section_type != eSectionTypeInvalid) 808 return section_type; 809 810 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_CODE) 811 return eSectionTypeCode; 812 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA) 813 return eSectionTypeData; 814 if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA) { 815 if (sect.size == 0) 816 return eSectionTypeZeroFill; 817 else 818 return eSectionTypeData; 819 } 820 return eSectionTypeOther; 821 } 822 823 void ObjectFilePECOFF::CreateSections(SectionList &unified_section_list) { 824 if (m_sections_up) 825 return; 826 m_sections_up = std::make_unique<SectionList>(); 827 ModuleSP module_sp(GetModule()); 828 if (module_sp) { 829 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 830 831 SectionSP header_sp = std::make_shared<Section>( 832 module_sp, this, ~user_id_t(0), ConstString("PECOFF header"), 833 eSectionTypeOther, m_coff_header_opt.image_base, 834 m_coff_header_opt.header_size, 835 /*file_offset*/ 0, m_coff_header_opt.header_size, 836 m_coff_header_opt.sect_alignment, 837 /*flags*/ 0); 838 header_sp->SetPermissions(ePermissionsReadable); 839 m_sections_up->AddSection(header_sp); 840 unified_section_list.AddSection(header_sp); 841 842 const uint32_t nsects = m_sect_headers.size(); 843 ModuleSP module_sp(GetModule()); 844 for (uint32_t idx = 0; idx < nsects; ++idx) { 845 llvm::StringRef sect_name = GetSectionName(m_sect_headers[idx]); 846 ConstString const_sect_name(sect_name); 847 SectionType section_type = GetSectionType(sect_name, m_sect_headers[idx]); 848 849 SectionSP section_sp(new Section( 850 module_sp, // Module to which this section belongs 851 this, // Object file to which this section belongs 852 idx + 1, // Section ID is the 1 based section index. 853 const_sect_name, // Name of this section 854 section_type, 855 m_coff_header_opt.image_base + 856 m_sect_headers[idx].vmaddr, // File VM address == addresses as 857 // they are found in the object file 858 m_sect_headers[idx].vmsize, // VM size in bytes of this section 859 m_sect_headers[idx] 860 .offset, // Offset to the data for this section in the file 861 m_sect_headers[idx] 862 .size, // Size in bytes of this section as found in the file 863 m_coff_header_opt.sect_alignment, // Section alignment 864 m_sect_headers[idx].flags)); // Flags for this section 865 866 uint32_t permissions = 0; 867 if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_MEM_EXECUTE) 868 permissions |= ePermissionsExecutable; 869 if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_MEM_READ) 870 permissions |= ePermissionsReadable; 871 if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_MEM_WRITE) 872 permissions |= ePermissionsWritable; 873 section_sp->SetPermissions(permissions); 874 875 m_sections_up->AddSection(section_sp); 876 unified_section_list.AddSection(section_sp); 877 } 878 } 879 } 880 881 UUID ObjectFilePECOFF::GetUUID() { 882 if (m_uuid.IsValid()) 883 return m_uuid; 884 885 if (!CreateBinary()) 886 return UUID(); 887 888 m_uuid = GetCoffUUID(*m_binary); 889 return m_uuid; 890 } 891 892 uint32_t ObjectFilePECOFF::ParseDependentModules() { 893 ModuleSP module_sp(GetModule()); 894 if (!module_sp) 895 return 0; 896 897 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 898 if (m_deps_filespec) 899 return m_deps_filespec->GetSize(); 900 901 // Cache coff binary if it is not done yet. 902 if (!CreateBinary()) 903 return 0; 904 905 Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT)); 906 LLDB_LOG(log, "this = {0}, module = {1} ({2}), file = {3}, binary = {4}", 907 this, GetModule().get(), GetModule()->GetSpecificationDescription(), 908 m_file.GetPath(), m_binary.get()); 909 910 m_deps_filespec = FileSpecList(); 911 912 for (const auto &entry : m_binary->import_directories()) { 913 llvm::StringRef dll_name; 914 // Report a bogus entry. 915 if (llvm::Error e = entry.getName(dll_name)) { 916 LLDB_LOGF(log, 917 "ObjectFilePECOFF::ParseDependentModules() - failed to get " 918 "import directory entry name: %s", 919 llvm::toString(std::move(e)).c_str()); 920 continue; 921 } 922 923 // At this moment we only have the base name of the DLL. The full path can 924 // only be seen after the dynamic loading. Our best guess is Try to get it 925 // with the help of the object file's directory. 926 llvm::SmallString<128> dll_fullpath; 927 FileSpec dll_specs(dll_name); 928 dll_specs.GetDirectory().SetString(m_file.GetDirectory().GetCString()); 929 930 if (!llvm::sys::fs::real_path(dll_specs.GetPath(), dll_fullpath)) 931 m_deps_filespec->EmplaceBack(dll_fullpath); 932 else { 933 // Known DLLs or DLL not found in the object file directory. 934 m_deps_filespec->EmplaceBack(dll_name); 935 } 936 } 937 return m_deps_filespec->GetSize(); 938 } 939 940 uint32_t ObjectFilePECOFF::GetDependentModules(FileSpecList &files) { 941 auto num_modules = ParseDependentModules(); 942 auto original_size = files.GetSize(); 943 944 for (unsigned i = 0; i < num_modules; ++i) 945 files.AppendIfUnique(m_deps_filespec->GetFileSpecAtIndex(i)); 946 947 return files.GetSize() - original_size; 948 } 949 950 lldb_private::Address ObjectFilePECOFF::GetEntryPointAddress() { 951 if (m_entry_point_address.IsValid()) 952 return m_entry_point_address; 953 954 if (!ParseHeader() || !IsExecutable()) 955 return m_entry_point_address; 956 957 SectionList *section_list = GetSectionList(); 958 addr_t file_addr = m_coff_header_opt.entry + m_coff_header_opt.image_base; 959 960 if (!section_list) 961 m_entry_point_address.SetOffset(file_addr); 962 else 963 m_entry_point_address.ResolveAddressUsingFileSections(file_addr, 964 section_list); 965 return m_entry_point_address; 966 } 967 968 Address ObjectFilePECOFF::GetBaseAddress() { 969 return Address(GetSectionList()->GetSectionAtIndex(0), 0); 970 } 971 972 // Dump 973 // 974 // Dump the specifics of the runtime file container (such as any headers 975 // segments, sections, etc). 976 void ObjectFilePECOFF::Dump(Stream *s) { 977 ModuleSP module_sp(GetModule()); 978 if (module_sp) { 979 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 980 s->Printf("%p: ", static_cast<void *>(this)); 981 s->Indent(); 982 s->PutCString("ObjectFilePECOFF"); 983 984 ArchSpec header_arch = GetArchitecture(); 985 986 *s << ", file = '" << m_file 987 << "', arch = " << header_arch.GetArchitectureName() << "\n"; 988 989 SectionList *sections = GetSectionList(); 990 if (sections) 991 sections->Dump(s->AsRawOstream(), s->GetIndentLevel(), nullptr, true, 992 UINT32_MAX); 993 994 if (m_symtab_up) 995 m_symtab_up->Dump(s, nullptr, eSortOrderNone); 996 997 if (m_dos_header.e_magic) 998 DumpDOSHeader(s, m_dos_header); 999 if (m_coff_header.machine) { 1000 DumpCOFFHeader(s, m_coff_header); 1001 if (m_coff_header.hdrsize) 1002 DumpOptCOFFHeader(s, m_coff_header_opt); 1003 } 1004 s->EOL(); 1005 DumpSectionHeaders(s); 1006 s->EOL(); 1007 1008 DumpDependentModules(s); 1009 s->EOL(); 1010 } 1011 } 1012 1013 // DumpDOSHeader 1014 // 1015 // Dump the MS-DOS header to the specified output stream 1016 void ObjectFilePECOFF::DumpDOSHeader(Stream *s, const dos_header_t &header) { 1017 s->PutCString("MSDOS Header\n"); 1018 s->Printf(" e_magic = 0x%4.4x\n", header.e_magic); 1019 s->Printf(" e_cblp = 0x%4.4x\n", header.e_cblp); 1020 s->Printf(" e_cp = 0x%4.4x\n", header.e_cp); 1021 s->Printf(" e_crlc = 0x%4.4x\n", header.e_crlc); 1022 s->Printf(" e_cparhdr = 0x%4.4x\n", header.e_cparhdr); 1023 s->Printf(" e_minalloc = 0x%4.4x\n", header.e_minalloc); 1024 s->Printf(" e_maxalloc = 0x%4.4x\n", header.e_maxalloc); 1025 s->Printf(" e_ss = 0x%4.4x\n", header.e_ss); 1026 s->Printf(" e_sp = 0x%4.4x\n", header.e_sp); 1027 s->Printf(" e_csum = 0x%4.4x\n", header.e_csum); 1028 s->Printf(" e_ip = 0x%4.4x\n", header.e_ip); 1029 s->Printf(" e_cs = 0x%4.4x\n", header.e_cs); 1030 s->Printf(" e_lfarlc = 0x%4.4x\n", header.e_lfarlc); 1031 s->Printf(" e_ovno = 0x%4.4x\n", header.e_ovno); 1032 s->Printf(" e_res[4] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 1033 header.e_res[0], header.e_res[1], header.e_res[2], header.e_res[3]); 1034 s->Printf(" e_oemid = 0x%4.4x\n", header.e_oemid); 1035 s->Printf(" e_oeminfo = 0x%4.4x\n", header.e_oeminfo); 1036 s->Printf(" e_res2[10] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, " 1037 "0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 1038 header.e_res2[0], header.e_res2[1], header.e_res2[2], 1039 header.e_res2[3], header.e_res2[4], header.e_res2[5], 1040 header.e_res2[6], header.e_res2[7], header.e_res2[8], 1041 header.e_res2[9]); 1042 s->Printf(" e_lfanew = 0x%8.8x\n", header.e_lfanew); 1043 } 1044 1045 // DumpCOFFHeader 1046 // 1047 // Dump the COFF header to the specified output stream 1048 void ObjectFilePECOFF::DumpCOFFHeader(Stream *s, const coff_header_t &header) { 1049 s->PutCString("COFF Header\n"); 1050 s->Printf(" machine = 0x%4.4x\n", header.machine); 1051 s->Printf(" nsects = 0x%4.4x\n", header.nsects); 1052 s->Printf(" modtime = 0x%8.8x\n", header.modtime); 1053 s->Printf(" symoff = 0x%8.8x\n", header.symoff); 1054 s->Printf(" nsyms = 0x%8.8x\n", header.nsyms); 1055 s->Printf(" hdrsize = 0x%4.4x\n", header.hdrsize); 1056 } 1057 1058 // DumpOptCOFFHeader 1059 // 1060 // Dump the optional COFF header to the specified output stream 1061 void ObjectFilePECOFF::DumpOptCOFFHeader(Stream *s, 1062 const coff_opt_header_t &header) { 1063 s->PutCString("Optional COFF Header\n"); 1064 s->Printf(" magic = 0x%4.4x\n", header.magic); 1065 s->Printf(" major_linker_version = 0x%2.2x\n", 1066 header.major_linker_version); 1067 s->Printf(" minor_linker_version = 0x%2.2x\n", 1068 header.minor_linker_version); 1069 s->Printf(" code_size = 0x%8.8x\n", header.code_size); 1070 s->Printf(" data_size = 0x%8.8x\n", header.data_size); 1071 s->Printf(" bss_size = 0x%8.8x\n", header.bss_size); 1072 s->Printf(" entry = 0x%8.8x\n", header.entry); 1073 s->Printf(" code_offset = 0x%8.8x\n", header.code_offset); 1074 s->Printf(" data_offset = 0x%8.8x\n", header.data_offset); 1075 s->Printf(" image_base = 0x%16.16" PRIx64 "\n", 1076 header.image_base); 1077 s->Printf(" sect_alignment = 0x%8.8x\n", header.sect_alignment); 1078 s->Printf(" file_alignment = 0x%8.8x\n", header.file_alignment); 1079 s->Printf(" major_os_system_version = 0x%4.4x\n", 1080 header.major_os_system_version); 1081 s->Printf(" minor_os_system_version = 0x%4.4x\n", 1082 header.minor_os_system_version); 1083 s->Printf(" major_image_version = 0x%4.4x\n", 1084 header.major_image_version); 1085 s->Printf(" minor_image_version = 0x%4.4x\n", 1086 header.minor_image_version); 1087 s->Printf(" major_subsystem_version = 0x%4.4x\n", 1088 header.major_subsystem_version); 1089 s->Printf(" minor_subsystem_version = 0x%4.4x\n", 1090 header.minor_subsystem_version); 1091 s->Printf(" reserved1 = 0x%8.8x\n", header.reserved1); 1092 s->Printf(" image_size = 0x%8.8x\n", header.image_size); 1093 s->Printf(" header_size = 0x%8.8x\n", header.header_size); 1094 s->Printf(" checksum = 0x%8.8x\n", header.checksum); 1095 s->Printf(" subsystem = 0x%4.4x\n", header.subsystem); 1096 s->Printf(" dll_flags = 0x%4.4x\n", header.dll_flags); 1097 s->Printf(" stack_reserve_size = 0x%16.16" PRIx64 "\n", 1098 header.stack_reserve_size); 1099 s->Printf(" stack_commit_size = 0x%16.16" PRIx64 "\n", 1100 header.stack_commit_size); 1101 s->Printf(" heap_reserve_size = 0x%16.16" PRIx64 "\n", 1102 header.heap_reserve_size); 1103 s->Printf(" heap_commit_size = 0x%16.16" PRIx64 "\n", 1104 header.heap_commit_size); 1105 s->Printf(" loader_flags = 0x%8.8x\n", header.loader_flags); 1106 s->Printf(" num_data_dir_entries = 0x%8.8x\n", 1107 (uint32_t)header.data_dirs.size()); 1108 uint32_t i; 1109 for (i = 0; i < header.data_dirs.size(); i++) { 1110 s->Printf(" data_dirs[%2u] vmaddr = 0x%8.8x, vmsize = 0x%8.8x\n", i, 1111 header.data_dirs[i].vmaddr, header.data_dirs[i].vmsize); 1112 } 1113 } 1114 // DumpSectionHeader 1115 // 1116 // Dump a single ELF section header to the specified output stream 1117 void ObjectFilePECOFF::DumpSectionHeader(Stream *s, 1118 const section_header_t &sh) { 1119 std::string name = std::string(GetSectionName(sh)); 1120 s->Printf("%-16s 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%4.4x " 1121 "0x%4.4x 0x%8.8x\n", 1122 name.c_str(), sh.vmaddr, sh.vmsize, sh.offset, sh.size, sh.reloff, 1123 sh.lineoff, sh.nreloc, sh.nline, sh.flags); 1124 } 1125 1126 // DumpSectionHeaders 1127 // 1128 // Dump all of the ELF section header to the specified output stream 1129 void ObjectFilePECOFF::DumpSectionHeaders(Stream *s) { 1130 1131 s->PutCString("Section Headers\n"); 1132 s->PutCString("IDX name vm addr vm size file off file " 1133 "size reloc off line off nreloc nline flags\n"); 1134 s->PutCString("==== ---------------- ---------- ---------- ---------- " 1135 "---------- ---------- ---------- ------ ------ ----------\n"); 1136 1137 uint32_t idx = 0; 1138 SectionHeaderCollIter pos, end = m_sect_headers.end(); 1139 1140 for (pos = m_sect_headers.begin(); pos != end; ++pos, ++idx) { 1141 s->Printf("[%2u] ", idx); 1142 ObjectFilePECOFF::DumpSectionHeader(s, *pos); 1143 } 1144 } 1145 1146 // DumpDependentModules 1147 // 1148 // Dump all of the dependent modules to the specified output stream 1149 void ObjectFilePECOFF::DumpDependentModules(lldb_private::Stream *s) { 1150 auto num_modules = ParseDependentModules(); 1151 if (num_modules > 0) { 1152 s->PutCString("Dependent Modules\n"); 1153 for (unsigned i = 0; i < num_modules; ++i) { 1154 auto spec = m_deps_filespec->GetFileSpecAtIndex(i); 1155 s->Printf(" %s\n", spec.GetFilename().GetCString()); 1156 } 1157 } 1158 } 1159 1160 bool ObjectFilePECOFF::IsWindowsSubsystem() { 1161 switch (m_coff_header_opt.subsystem) { 1162 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE: 1163 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_GUI: 1164 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CUI: 1165 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE_WINDOWS: 1166 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CE_GUI: 1167 case llvm::COFF::IMAGE_SUBSYSTEM_XBOX: 1168 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_BOOT_APPLICATION: 1169 return true; 1170 default: 1171 return false; 1172 } 1173 } 1174 1175 ArchSpec ObjectFilePECOFF::GetArchitecture() { 1176 uint16_t machine = m_coff_header.machine; 1177 switch (machine) { 1178 default: 1179 break; 1180 case llvm::COFF::IMAGE_FILE_MACHINE_AMD64: 1181 case llvm::COFF::IMAGE_FILE_MACHINE_I386: 1182 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPC: 1183 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPCFP: 1184 case llvm::COFF::IMAGE_FILE_MACHINE_ARM: 1185 case llvm::COFF::IMAGE_FILE_MACHINE_ARMNT: 1186 case llvm::COFF::IMAGE_FILE_MACHINE_THUMB: 1187 case llvm::COFF::IMAGE_FILE_MACHINE_ARM64: 1188 ArchSpec arch; 1189 arch.SetArchitecture(eArchTypeCOFF, machine, LLDB_INVALID_CPUTYPE, 1190 IsWindowsSubsystem() ? llvm::Triple::Win32 1191 : llvm::Triple::UnknownOS); 1192 return arch; 1193 } 1194 return ArchSpec(); 1195 } 1196 1197 ObjectFile::Type ObjectFilePECOFF::CalculateType() { 1198 if (m_coff_header.machine != 0) { 1199 if ((m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0) 1200 return eTypeExecutable; 1201 else 1202 return eTypeSharedLibrary; 1203 } 1204 return eTypeExecutable; 1205 } 1206 1207 ObjectFile::Strata ObjectFilePECOFF::CalculateStrata() { return eStrataUser; } 1208 1209 // PluginInterface protocol 1210 ConstString ObjectFilePECOFF::GetPluginName() { return GetPluginNameStatic(); } 1211 1212 uint32_t ObjectFilePECOFF::GetPluginVersion() { return 1; } 1213