1 //===-- ObjectFilePECOFF.cpp ------------------------------------*- C++ -*-===// 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 "WindowsMiniDump.h" 11 12 #include "lldb/Core/FileSpecList.h" 13 #include "lldb/Core/Module.h" 14 #include "lldb/Core/ModuleSpec.h" 15 #include "lldb/Core/PluginManager.h" 16 #include "lldb/Core/Section.h" 17 #include "lldb/Core/StreamFile.h" 18 #include "lldb/Symbol/ObjectFile.h" 19 #include "lldb/Target/Process.h" 20 #include "lldb/Target/SectionLoadList.h" 21 #include "lldb/Target/Target.h" 22 #include "lldb/Utility/ArchSpec.h" 23 #include "lldb/Utility/DataBufferHeap.h" 24 #include "lldb/Utility/FileSpec.h" 25 #include "lldb/Utility/Log.h" 26 #include "lldb/Utility/StreamString.h" 27 #include "lldb/Utility/Timer.h" 28 #include "lldb/Utility/UUID.h" 29 #include "llvm/BinaryFormat/COFF.h" 30 31 #include "llvm/Object/COFFImportFile.h" 32 #include "llvm/Support/Error.h" 33 #include "llvm/Support/MemoryBuffer.h" 34 35 #define IMAGE_DOS_SIGNATURE 0x5A4D // MZ 36 #define IMAGE_NT_SIGNATURE 0x00004550 // PE00 37 #define OPT_HEADER_MAGIC_PE32 0x010b 38 #define OPT_HEADER_MAGIC_PE32_PLUS 0x020b 39 40 using namespace lldb; 41 using namespace lldb_private; 42 43 struct CVInfoPdb70 { 44 // 16-byte GUID 45 struct _Guid { 46 llvm::support::ulittle32_t Data1; 47 llvm::support::ulittle16_t Data2; 48 llvm::support::ulittle16_t Data3; 49 uint8_t Data4[8]; 50 } Guid; 51 52 llvm::support::ulittle32_t Age; 53 }; 54 55 static UUID GetCoffUUID(llvm::object::COFFObjectFile *coff_obj) { 56 if (!coff_obj) 57 return UUID(); 58 59 const llvm::codeview::DebugInfo *pdb_info = nullptr; 60 llvm::StringRef pdb_file; 61 62 // This part is similar with what has done in minidump parser. 63 if (!coff_obj->getDebugPDBInfo(pdb_info, pdb_file) && pdb_info) { 64 if (pdb_info->PDB70.CVSignature == llvm::OMF::Signature::PDB70) { 65 using llvm::support::endian::read16be; 66 using llvm::support::endian::read32be; 67 68 const uint8_t *sig = pdb_info->PDB70.Signature; 69 struct CVInfoPdb70 info; 70 info.Guid.Data1 = read32be(sig); 71 sig += 4; 72 info.Guid.Data2 = read16be(sig); 73 sig += 2; 74 info.Guid.Data3 = read16be(sig); 75 sig += 2; 76 memcpy(info.Guid.Data4, sig, 8); 77 78 // Return 20-byte UUID if the Age is not zero 79 if (pdb_info->PDB70.Age) { 80 info.Age = read32be(&pdb_info->PDB70.Age); 81 return UUID::fromOptionalData(&info, sizeof(info)); 82 } 83 // Otherwise return 16-byte GUID 84 return UUID::fromOptionalData(&info.Guid, sizeof(info.Guid)); 85 } 86 } 87 88 return UUID(); 89 } 90 91 void ObjectFilePECOFF::Initialize() { 92 PluginManager::RegisterPlugin( 93 GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance, 94 CreateMemoryInstance, GetModuleSpecifications, SaveCore); 95 } 96 97 void ObjectFilePECOFF::Terminate() { 98 PluginManager::UnregisterPlugin(CreateInstance); 99 } 100 101 lldb_private::ConstString ObjectFilePECOFF::GetPluginNameStatic() { 102 static ConstString g_name("pe-coff"); 103 return g_name; 104 } 105 106 const char *ObjectFilePECOFF::GetPluginDescriptionStatic() { 107 return "Portable Executable and Common Object File Format object file reader " 108 "(32 and 64 bit)"; 109 } 110 111 ObjectFile *ObjectFilePECOFF::CreateInstance(const lldb::ModuleSP &module_sp, 112 DataBufferSP &data_sp, 113 lldb::offset_t data_offset, 114 const lldb_private::FileSpec *file, 115 lldb::offset_t file_offset, 116 lldb::offset_t length) { 117 if (!data_sp) { 118 data_sp = MapFileData(file, length, file_offset); 119 if (!data_sp) 120 return nullptr; 121 data_offset = 0; 122 } 123 124 if (!ObjectFilePECOFF::MagicBytesMatch(data_sp)) 125 return nullptr; 126 127 // Update the data to contain the entire file if it doesn't already 128 if (data_sp->GetByteSize() < length) { 129 data_sp = MapFileData(file, length, file_offset); 130 if (!data_sp) 131 return nullptr; 132 } 133 134 auto objfile_up = llvm::make_unique<ObjectFilePECOFF>( 135 module_sp, data_sp, data_offset, file, file_offset, length); 136 if (!objfile_up || !objfile_up->ParseHeader()) 137 return nullptr; 138 139 // Cache coff binary. 140 if (!objfile_up->CreateBinary()) 141 return nullptr; 142 143 return objfile_up.release(); 144 } 145 146 ObjectFile *ObjectFilePECOFF::CreateMemoryInstance( 147 const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, 148 const lldb::ProcessSP &process_sp, lldb::addr_t header_addr) { 149 if (!data_sp || !ObjectFilePECOFF::MagicBytesMatch(data_sp)) 150 return nullptr; 151 auto objfile_up = llvm::make_unique<ObjectFilePECOFF>( 152 module_sp, data_sp, process_sp, header_addr); 153 if (objfile_up.get() && objfile_up->ParseHeader()) { 154 return objfile_up.release(); 155 } 156 return nullptr; 157 } 158 159 size_t ObjectFilePECOFF::GetModuleSpecifications( 160 const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp, 161 lldb::offset_t data_offset, lldb::offset_t file_offset, 162 lldb::offset_t length, lldb_private::ModuleSpecList &specs) { 163 const size_t initial_count = specs.GetSize(); 164 if (!data_sp || !ObjectFilePECOFF::MagicBytesMatch(data_sp)) 165 return initial_count; 166 167 auto binary = llvm::object::createBinary(file.GetPath()); 168 if (!binary) 169 return initial_count; 170 171 if (!binary->getBinary()->isCOFF() && 172 !binary->getBinary()->isCOFFImportFile()) 173 return initial_count; 174 175 auto COFFObj = 176 llvm::cast<llvm::object::COFFObjectFile>(binary->getBinary()); 177 178 ModuleSpec module_spec(file); 179 ArchSpec &spec = module_spec.GetArchitecture(); 180 lldb_private::UUID &uuid = module_spec.GetUUID(); 181 if (!uuid.IsValid()) 182 uuid = GetCoffUUID(COFFObj); 183 184 switch (COFFObj->getMachine()) { 185 case MachineAmd64: 186 spec.SetTriple("x86_64-pc-windows"); 187 specs.Append(module_spec); 188 break; 189 case MachineX86: 190 spec.SetTriple("i386-pc-windows"); 191 specs.Append(module_spec); 192 spec.SetTriple("i686-pc-windows"); 193 specs.Append(module_spec); 194 break; 195 case MachineArmNt: 196 spec.SetTriple("arm-pc-windows"); 197 specs.Append(module_spec); 198 break; 199 default: 200 break; 201 } 202 203 return specs.GetSize() - initial_count; 204 } 205 206 bool ObjectFilePECOFF::SaveCore(const lldb::ProcessSP &process_sp, 207 const lldb_private::FileSpec &outfile, 208 lldb_private::Status &error) { 209 return SaveMiniDump(process_sp, outfile, error); 210 } 211 212 bool ObjectFilePECOFF::MagicBytesMatch(DataBufferSP &data_sp) { 213 DataExtractor data(data_sp, eByteOrderLittle, 4); 214 lldb::offset_t offset = 0; 215 uint16_t magic = data.GetU16(&offset); 216 return magic == IMAGE_DOS_SIGNATURE; 217 } 218 219 lldb::SymbolType ObjectFilePECOFF::MapSymbolType(uint16_t coff_symbol_type) { 220 // TODO: We need to complete this mapping of COFF symbol types to LLDB ones. 221 // For now, here's a hack to make sure our function have types. 222 const auto complex_type = 223 coff_symbol_type >> llvm::COFF::SCT_COMPLEX_TYPE_SHIFT; 224 if (complex_type == llvm::COFF::IMAGE_SYM_DTYPE_FUNCTION) { 225 return lldb::eSymbolTypeCode; 226 } 227 return lldb::eSymbolTypeInvalid; 228 } 229 230 bool ObjectFilePECOFF::CreateBinary() { 231 if (m_owningbin) 232 return true; 233 234 Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT)); 235 236 auto binary = llvm::object::createBinary(m_file.GetPath()); 237 if (!binary) { 238 if (log) 239 log->Printf("ObjectFilePECOFF::CreateBinary() - failed to create binary " 240 "for file (%s): %s", 241 m_file ? m_file.GetPath().c_str() : "<NULL>", 242 errorToErrorCode(binary.takeError()).message().c_str()); 243 return false; 244 } 245 246 // Make sure we only handle COFF format. 247 if (!binary->getBinary()->isCOFF() && 248 !binary->getBinary()->isCOFFImportFile()) 249 return false; 250 251 m_owningbin = OWNBINType(std::move(*binary)); 252 if (log) 253 log->Printf("%p ObjectFilePECOFF::CreateBinary() module = %p (%s), file = " 254 "%s, binary = %p (Bin = %p)", 255 static_cast<void *>(this), 256 static_cast<void *>(GetModule().get()), 257 GetModule()->GetSpecificationDescription().c_str(), 258 m_file ? m_file.GetPath().c_str() : "<NULL>", 259 static_cast<void *>(m_owningbin.getPointer()), 260 static_cast<void *>(m_owningbin->getBinary())); 261 return true; 262 } 263 264 ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 265 DataBufferSP &data_sp, 266 lldb::offset_t data_offset, 267 const FileSpec *file, 268 lldb::offset_t file_offset, 269 lldb::offset_t length) 270 : ObjectFile(module_sp, file, file_offset, length, data_sp, data_offset), 271 m_dos_header(), m_coff_header(), m_coff_header_opt(), m_sect_headers(), 272 m_entry_point_address(), m_deps_filespec(), m_owningbin() { 273 ::memset(&m_dos_header, 0, sizeof(m_dos_header)); 274 ::memset(&m_coff_header, 0, sizeof(m_coff_header)); 275 ::memset(&m_coff_header_opt, 0, sizeof(m_coff_header_opt)); 276 } 277 278 ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp, 279 DataBufferSP &header_data_sp, 280 const lldb::ProcessSP &process_sp, 281 addr_t header_addr) 282 : ObjectFile(module_sp, process_sp, header_addr, header_data_sp), 283 m_dos_header(), m_coff_header(), m_coff_header_opt(), m_sect_headers(), 284 m_entry_point_address(), m_deps_filespec(), m_owningbin() { 285 ::memset(&m_dos_header, 0, sizeof(m_dos_header)); 286 ::memset(&m_coff_header, 0, sizeof(m_coff_header)); 287 ::memset(&m_coff_header_opt, 0, sizeof(m_coff_header_opt)); 288 } 289 290 ObjectFilePECOFF::~ObjectFilePECOFF() {} 291 292 bool ObjectFilePECOFF::ParseHeader() { 293 ModuleSP module_sp(GetModule()); 294 if (module_sp) { 295 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 296 m_sect_headers.clear(); 297 m_data.SetByteOrder(eByteOrderLittle); 298 lldb::offset_t offset = 0; 299 300 if (ParseDOSHeader(m_data, m_dos_header)) { 301 offset = m_dos_header.e_lfanew; 302 uint32_t pe_signature = m_data.GetU32(&offset); 303 if (pe_signature != IMAGE_NT_SIGNATURE) 304 return false; 305 if (ParseCOFFHeader(m_data, &offset, m_coff_header)) { 306 if (m_coff_header.hdrsize > 0) 307 ParseCOFFOptionalHeader(&offset); 308 ParseSectionHeaders(offset); 309 } 310 return true; 311 } 312 } 313 return false; 314 } 315 316 bool ObjectFilePECOFF::SetLoadAddress(Target &target, addr_t value, 317 bool value_is_offset) { 318 bool changed = false; 319 ModuleSP module_sp = GetModule(); 320 if (module_sp) { 321 size_t num_loaded_sections = 0; 322 SectionList *section_list = GetSectionList(); 323 if (section_list) { 324 if (!value_is_offset) { 325 value -= m_image_base; 326 } 327 328 const size_t num_sections = section_list->GetSize(); 329 size_t sect_idx = 0; 330 331 for (sect_idx = 0; sect_idx < num_sections; ++sect_idx) { 332 // Iterate through the object file sections to find all of the sections 333 // that have SHF_ALLOC in their flag bits. 334 SectionSP section_sp(section_list->GetSectionAtIndex(sect_idx)); 335 if (section_sp && !section_sp->IsThreadSpecific()) { 336 if (target.GetSectionLoadList().SetSectionLoadAddress( 337 section_sp, section_sp->GetFileAddress() + value)) 338 ++num_loaded_sections; 339 } 340 } 341 changed = num_loaded_sections > 0; 342 } 343 } 344 return changed; 345 } 346 347 ByteOrder ObjectFilePECOFF::GetByteOrder() const { return eByteOrderLittle; } 348 349 bool ObjectFilePECOFF::IsExecutable() const { 350 return (m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0; 351 } 352 353 uint32_t ObjectFilePECOFF::GetAddressByteSize() const { 354 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32_PLUS) 355 return 8; 356 else if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) 357 return 4; 358 return 4; 359 } 360 361 // NeedsEndianSwap 362 // 363 // Return true if an endian swap needs to occur when extracting data from this 364 // file. 365 bool ObjectFilePECOFF::NeedsEndianSwap() const { 366 #if defined(__LITTLE_ENDIAN__) 367 return false; 368 #else 369 return true; 370 #endif 371 } 372 // ParseDOSHeader 373 bool ObjectFilePECOFF::ParseDOSHeader(DataExtractor &data, 374 dos_header_t &dos_header) { 375 bool success = false; 376 lldb::offset_t offset = 0; 377 success = data.ValidOffsetForDataOfSize(0, sizeof(dos_header)); 378 379 if (success) { 380 dos_header.e_magic = data.GetU16(&offset); // Magic number 381 success = dos_header.e_magic == IMAGE_DOS_SIGNATURE; 382 383 if (success) { 384 dos_header.e_cblp = data.GetU16(&offset); // Bytes on last page of file 385 dos_header.e_cp = data.GetU16(&offset); // Pages in file 386 dos_header.e_crlc = data.GetU16(&offset); // Relocations 387 dos_header.e_cparhdr = 388 data.GetU16(&offset); // Size of header in paragraphs 389 dos_header.e_minalloc = 390 data.GetU16(&offset); // Minimum extra paragraphs needed 391 dos_header.e_maxalloc = 392 data.GetU16(&offset); // Maximum extra paragraphs needed 393 dos_header.e_ss = data.GetU16(&offset); // Initial (relative) SS value 394 dos_header.e_sp = data.GetU16(&offset); // Initial SP value 395 dos_header.e_csum = data.GetU16(&offset); // Checksum 396 dos_header.e_ip = data.GetU16(&offset); // Initial IP value 397 dos_header.e_cs = data.GetU16(&offset); // Initial (relative) CS value 398 dos_header.e_lfarlc = 399 data.GetU16(&offset); // File address of relocation table 400 dos_header.e_ovno = data.GetU16(&offset); // Overlay number 401 402 dos_header.e_res[0] = data.GetU16(&offset); // Reserved words 403 dos_header.e_res[1] = data.GetU16(&offset); // Reserved words 404 dos_header.e_res[2] = data.GetU16(&offset); // Reserved words 405 dos_header.e_res[3] = data.GetU16(&offset); // Reserved words 406 407 dos_header.e_oemid = 408 data.GetU16(&offset); // OEM identifier (for e_oeminfo) 409 dos_header.e_oeminfo = 410 data.GetU16(&offset); // OEM information; e_oemid specific 411 dos_header.e_res2[0] = data.GetU16(&offset); // Reserved words 412 dos_header.e_res2[1] = data.GetU16(&offset); // Reserved words 413 dos_header.e_res2[2] = data.GetU16(&offset); // Reserved words 414 dos_header.e_res2[3] = data.GetU16(&offset); // Reserved words 415 dos_header.e_res2[4] = data.GetU16(&offset); // Reserved words 416 dos_header.e_res2[5] = data.GetU16(&offset); // Reserved words 417 dos_header.e_res2[6] = data.GetU16(&offset); // Reserved words 418 dos_header.e_res2[7] = data.GetU16(&offset); // Reserved words 419 dos_header.e_res2[8] = data.GetU16(&offset); // Reserved words 420 dos_header.e_res2[9] = data.GetU16(&offset); // Reserved words 421 422 dos_header.e_lfanew = 423 data.GetU32(&offset); // File address of new exe header 424 } 425 } 426 if (!success) 427 memset(&dos_header, 0, sizeof(dos_header)); 428 return success; 429 } 430 431 // ParserCOFFHeader 432 bool ObjectFilePECOFF::ParseCOFFHeader(DataExtractor &data, 433 lldb::offset_t *offset_ptr, 434 coff_header_t &coff_header) { 435 bool success = 436 data.ValidOffsetForDataOfSize(*offset_ptr, sizeof(coff_header)); 437 if (success) { 438 coff_header.machine = data.GetU16(offset_ptr); 439 coff_header.nsects = data.GetU16(offset_ptr); 440 coff_header.modtime = data.GetU32(offset_ptr); 441 coff_header.symoff = data.GetU32(offset_ptr); 442 coff_header.nsyms = data.GetU32(offset_ptr); 443 coff_header.hdrsize = data.GetU16(offset_ptr); 444 coff_header.flags = data.GetU16(offset_ptr); 445 } 446 if (!success) 447 memset(&coff_header, 0, sizeof(coff_header)); 448 return success; 449 } 450 451 bool ObjectFilePECOFF::ParseCOFFOptionalHeader(lldb::offset_t *offset_ptr) { 452 bool success = false; 453 const lldb::offset_t end_offset = *offset_ptr + m_coff_header.hdrsize; 454 if (*offset_ptr < end_offset) { 455 success = true; 456 m_coff_header_opt.magic = m_data.GetU16(offset_ptr); 457 m_coff_header_opt.major_linker_version = m_data.GetU8(offset_ptr); 458 m_coff_header_opt.minor_linker_version = m_data.GetU8(offset_ptr); 459 m_coff_header_opt.code_size = m_data.GetU32(offset_ptr); 460 m_coff_header_opt.data_size = m_data.GetU32(offset_ptr); 461 m_coff_header_opt.bss_size = m_data.GetU32(offset_ptr); 462 m_coff_header_opt.entry = m_data.GetU32(offset_ptr); 463 m_coff_header_opt.code_offset = m_data.GetU32(offset_ptr); 464 465 const uint32_t addr_byte_size = GetAddressByteSize(); 466 467 if (*offset_ptr < end_offset) { 468 if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) { 469 // PE32 only 470 m_coff_header_opt.data_offset = m_data.GetU32(offset_ptr); 471 } else 472 m_coff_header_opt.data_offset = 0; 473 474 if (*offset_ptr < end_offset) { 475 m_coff_header_opt.image_base = 476 m_data.GetMaxU64(offset_ptr, addr_byte_size); 477 m_coff_header_opt.sect_alignment = m_data.GetU32(offset_ptr); 478 m_coff_header_opt.file_alignment = m_data.GetU32(offset_ptr); 479 m_coff_header_opt.major_os_system_version = m_data.GetU16(offset_ptr); 480 m_coff_header_opt.minor_os_system_version = m_data.GetU16(offset_ptr); 481 m_coff_header_opt.major_image_version = m_data.GetU16(offset_ptr); 482 m_coff_header_opt.minor_image_version = m_data.GetU16(offset_ptr); 483 m_coff_header_opt.major_subsystem_version = m_data.GetU16(offset_ptr); 484 m_coff_header_opt.minor_subsystem_version = m_data.GetU16(offset_ptr); 485 m_coff_header_opt.reserved1 = m_data.GetU32(offset_ptr); 486 m_coff_header_opt.image_size = m_data.GetU32(offset_ptr); 487 m_coff_header_opt.header_size = m_data.GetU32(offset_ptr); 488 m_coff_header_opt.checksum = m_data.GetU32(offset_ptr); 489 m_coff_header_opt.subsystem = m_data.GetU16(offset_ptr); 490 m_coff_header_opt.dll_flags = m_data.GetU16(offset_ptr); 491 m_coff_header_opt.stack_reserve_size = 492 m_data.GetMaxU64(offset_ptr, addr_byte_size); 493 m_coff_header_opt.stack_commit_size = 494 m_data.GetMaxU64(offset_ptr, addr_byte_size); 495 m_coff_header_opt.heap_reserve_size = 496 m_data.GetMaxU64(offset_ptr, addr_byte_size); 497 m_coff_header_opt.heap_commit_size = 498 m_data.GetMaxU64(offset_ptr, addr_byte_size); 499 m_coff_header_opt.loader_flags = m_data.GetU32(offset_ptr); 500 uint32_t num_data_dir_entries = m_data.GetU32(offset_ptr); 501 m_coff_header_opt.data_dirs.clear(); 502 m_coff_header_opt.data_dirs.resize(num_data_dir_entries); 503 uint32_t i; 504 for (i = 0; i < num_data_dir_entries; i++) { 505 m_coff_header_opt.data_dirs[i].vmaddr = m_data.GetU32(offset_ptr); 506 m_coff_header_opt.data_dirs[i].vmsize = m_data.GetU32(offset_ptr); 507 } 508 509 m_image_base = m_coff_header_opt.image_base; 510 } 511 } 512 } 513 // Make sure we are on track for section data which follows 514 *offset_ptr = end_offset; 515 return success; 516 } 517 518 DataExtractor ObjectFilePECOFF::ReadImageData(uint32_t offset, size_t size) { 519 if (m_file) { 520 // A bit of a hack, but we intend to write to this buffer, so we can't 521 // mmap it. 522 auto buffer_sp = MapFileData(m_file, size, offset); 523 return DataExtractor(buffer_sp, GetByteOrder(), GetAddressByteSize()); 524 } 525 ProcessSP process_sp(m_process_wp.lock()); 526 DataExtractor data; 527 if (process_sp) { 528 auto data_up = llvm::make_unique<DataBufferHeap>(size, 0); 529 Status readmem_error; 530 size_t bytes_read = 531 process_sp->ReadMemory(m_image_base + offset, data_up->GetBytes(), 532 data_up->GetByteSize(), readmem_error); 533 if (bytes_read == size) { 534 DataBufferSP buffer_sp(data_up.release()); 535 data.SetData(buffer_sp, 0, buffer_sp->GetByteSize()); 536 } 537 } 538 return data; 539 } 540 541 // ParseSectionHeaders 542 bool ObjectFilePECOFF::ParseSectionHeaders( 543 uint32_t section_header_data_offset) { 544 const uint32_t nsects = m_coff_header.nsects; 545 m_sect_headers.clear(); 546 547 if (nsects > 0) { 548 const size_t section_header_byte_size = nsects * sizeof(section_header_t); 549 DataExtractor section_header_data = 550 ReadImageData(section_header_data_offset, section_header_byte_size); 551 552 lldb::offset_t offset = 0; 553 if (section_header_data.ValidOffsetForDataOfSize( 554 offset, section_header_byte_size)) { 555 m_sect_headers.resize(nsects); 556 557 for (uint32_t idx = 0; idx < nsects; ++idx) { 558 const void *name_data = section_header_data.GetData(&offset, 8); 559 if (name_data) { 560 memcpy(m_sect_headers[idx].name, name_data, 8); 561 m_sect_headers[idx].vmsize = section_header_data.GetU32(&offset); 562 m_sect_headers[idx].vmaddr = section_header_data.GetU32(&offset); 563 m_sect_headers[idx].size = section_header_data.GetU32(&offset); 564 m_sect_headers[idx].offset = section_header_data.GetU32(&offset); 565 m_sect_headers[idx].reloff = section_header_data.GetU32(&offset); 566 m_sect_headers[idx].lineoff = section_header_data.GetU32(&offset); 567 m_sect_headers[idx].nreloc = section_header_data.GetU16(&offset); 568 m_sect_headers[idx].nline = section_header_data.GetU16(&offset); 569 m_sect_headers[idx].flags = section_header_data.GetU32(&offset); 570 } 571 } 572 } 573 } 574 575 return !m_sect_headers.empty(); 576 } 577 578 llvm::StringRef ObjectFilePECOFF::GetSectionName(const section_header_t §) { 579 llvm::StringRef hdr_name(sect.name, llvm::array_lengthof(sect.name)); 580 hdr_name = hdr_name.split('\0').first; 581 if (hdr_name.consume_front("/")) { 582 lldb::offset_t stroff; 583 if (!to_integer(hdr_name, stroff, 10)) 584 return ""; 585 lldb::offset_t string_file_offset = 586 m_coff_header.symoff + (m_coff_header.nsyms * 18) + stroff; 587 if (const char *name = m_data.GetCStr(&string_file_offset)) 588 return name; 589 return ""; 590 } 591 return hdr_name; 592 } 593 594 // GetNListSymtab 595 Symtab *ObjectFilePECOFF::GetSymtab() { 596 ModuleSP module_sp(GetModule()); 597 if (module_sp) { 598 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 599 if (m_symtab_up == nullptr) { 600 SectionList *sect_list = GetSectionList(); 601 m_symtab_up.reset(new Symtab(this)); 602 std::lock_guard<std::recursive_mutex> guard(m_symtab_up->GetMutex()); 603 604 const uint32_t num_syms = m_coff_header.nsyms; 605 606 if (m_file && num_syms > 0 && m_coff_header.symoff > 0) { 607 const uint32_t symbol_size = 18; 608 const size_t symbol_data_size = num_syms * symbol_size; 609 // Include the 4-byte string table size at the end of the symbols 610 DataExtractor symtab_data = 611 ReadImageData(m_coff_header.symoff, symbol_data_size + 4); 612 lldb::offset_t offset = symbol_data_size; 613 const uint32_t strtab_size = symtab_data.GetU32(&offset); 614 if (strtab_size > 0) { 615 DataExtractor strtab_data = ReadImageData( 616 m_coff_header.symoff + symbol_data_size, strtab_size); 617 618 // First 4 bytes should be zeroed after strtab_size has been read, 619 // because it is used as offset 0 to encode a NULL string. 620 uint32_t *strtab_data_start = const_cast<uint32_t *>( 621 reinterpret_cast<const uint32_t *>(strtab_data.GetDataStart())); 622 strtab_data_start[0] = 0; 623 624 offset = 0; 625 std::string symbol_name; 626 Symbol *symbols = m_symtab_up->Resize(num_syms); 627 for (uint32_t i = 0; i < num_syms; ++i) { 628 coff_symbol_t symbol; 629 const uint32_t symbol_offset = offset; 630 const char *symbol_name_cstr = nullptr; 631 // If the first 4 bytes of the symbol string are zero, then they 632 // are followed by a 4-byte string table offset. Else these 633 // 8 bytes contain the symbol name 634 if (symtab_data.GetU32(&offset) == 0) { 635 // Long string that doesn't fit into the symbol table name, so 636 // now we must read the 4 byte string table offset 637 uint32_t strtab_offset = symtab_data.GetU32(&offset); 638 symbol_name_cstr = strtab_data.PeekCStr(strtab_offset); 639 symbol_name.assign(symbol_name_cstr); 640 } else { 641 // Short string that fits into the symbol table name which is 8 642 // bytes 643 offset += sizeof(symbol.name) - 4; // Skip remaining 644 symbol_name_cstr = symtab_data.PeekCStr(symbol_offset); 645 if (symbol_name_cstr == nullptr) 646 break; 647 symbol_name.assign(symbol_name_cstr, sizeof(symbol.name)); 648 } 649 symbol.value = symtab_data.GetU32(&offset); 650 symbol.sect = symtab_data.GetU16(&offset); 651 symbol.type = symtab_data.GetU16(&offset); 652 symbol.storage = symtab_data.GetU8(&offset); 653 symbol.naux = symtab_data.GetU8(&offset); 654 symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str())); 655 if ((int16_t)symbol.sect >= 1) { 656 Address symbol_addr(sect_list->GetSectionAtIndex(symbol.sect - 1), 657 symbol.value); 658 symbols[i].GetAddressRef() = symbol_addr; 659 symbols[i].SetType(MapSymbolType(symbol.type)); 660 } 661 662 if (symbol.naux > 0) { 663 i += symbol.naux; 664 offset += symbol_size; 665 } 666 } 667 } 668 } 669 670 // Read export header 671 if (coff_data_dir_export_table < m_coff_header_opt.data_dirs.size() && 672 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmsize > 0 && 673 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr > 0) { 674 export_directory_entry export_table; 675 uint32_t data_start = 676 m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr; 677 678 uint32_t address_rva = data_start; 679 if (m_file) { 680 Address address(m_coff_header_opt.image_base + data_start, sect_list); 681 address_rva = 682 address.GetSection()->GetFileOffset() + address.GetOffset(); 683 } 684 DataExtractor symtab_data = 685 ReadImageData(address_rva, m_coff_header_opt.data_dirs[0].vmsize); 686 lldb::offset_t offset = 0; 687 688 // Read export_table header 689 export_table.characteristics = symtab_data.GetU32(&offset); 690 export_table.time_date_stamp = symtab_data.GetU32(&offset); 691 export_table.major_version = symtab_data.GetU16(&offset); 692 export_table.minor_version = symtab_data.GetU16(&offset); 693 export_table.name = symtab_data.GetU32(&offset); 694 export_table.base = symtab_data.GetU32(&offset); 695 export_table.number_of_functions = symtab_data.GetU32(&offset); 696 export_table.number_of_names = symtab_data.GetU32(&offset); 697 export_table.address_of_functions = symtab_data.GetU32(&offset); 698 export_table.address_of_names = symtab_data.GetU32(&offset); 699 export_table.address_of_name_ordinals = symtab_data.GetU32(&offset); 700 701 bool has_ordinal = export_table.address_of_name_ordinals != 0; 702 703 lldb::offset_t name_offset = export_table.address_of_names - data_start; 704 lldb::offset_t name_ordinal_offset = 705 export_table.address_of_name_ordinals - data_start; 706 707 Symbol *symbols = m_symtab_up->Resize(export_table.number_of_names); 708 709 std::string symbol_name; 710 711 // Read each export table entry 712 for (size_t i = 0; i < export_table.number_of_names; ++i) { 713 uint32_t name_ordinal = 714 has_ordinal ? symtab_data.GetU16(&name_ordinal_offset) : i; 715 uint32_t name_address = symtab_data.GetU32(&name_offset); 716 717 const char *symbol_name_cstr = 718 symtab_data.PeekCStr(name_address - data_start); 719 symbol_name.assign(symbol_name_cstr); 720 721 lldb::offset_t function_offset = export_table.address_of_functions - 722 data_start + 723 sizeof(uint32_t) * name_ordinal; 724 uint32_t function_rva = symtab_data.GetU32(&function_offset); 725 726 Address symbol_addr(m_coff_header_opt.image_base + function_rva, 727 sect_list); 728 symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str())); 729 symbols[i].GetAddressRef() = symbol_addr; 730 symbols[i].SetType(lldb::eSymbolTypeCode); 731 symbols[i].SetDebug(true); 732 } 733 } 734 m_symtab_up->CalculateSymbolSizes(); 735 } 736 } 737 return m_symtab_up.get(); 738 } 739 740 bool ObjectFilePECOFF::IsStripped() { 741 // TODO: determine this for COFF 742 return false; 743 } 744 745 void ObjectFilePECOFF::CreateSections(SectionList &unified_section_list) { 746 if (m_sections_up) 747 return; 748 m_sections_up.reset(new SectionList()); 749 750 ModuleSP module_sp(GetModule()); 751 if (module_sp) { 752 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 753 754 SectionSP image_sp = std::make_shared<Section>( 755 module_sp, this, ~user_id_t(0), ConstString(), eSectionTypeContainer, 756 m_coff_header_opt.image_base, m_coff_header_opt.image_size, 757 /*file_offset*/ 0, /*file_size*/ 0, m_coff_header_opt.sect_alignment, 758 /*flags*/ 0); 759 m_sections_up->AddSection(image_sp); 760 unified_section_list.AddSection(image_sp); 761 762 const uint32_t nsects = m_sect_headers.size(); 763 ModuleSP module_sp(GetModule()); 764 for (uint32_t idx = 0; idx < nsects; ++idx) { 765 ConstString const_sect_name(GetSectionName(m_sect_headers[idx])); 766 static ConstString g_code_sect_name(".code"); 767 static ConstString g_CODE_sect_name("CODE"); 768 static ConstString g_data_sect_name(".data"); 769 static ConstString g_DATA_sect_name("DATA"); 770 static ConstString g_bss_sect_name(".bss"); 771 static ConstString g_BSS_sect_name("BSS"); 772 static ConstString g_debug_sect_name(".debug"); 773 static ConstString g_reloc_sect_name(".reloc"); 774 static ConstString g_stab_sect_name(".stab"); 775 static ConstString g_stabstr_sect_name(".stabstr"); 776 static ConstString g_sect_name_dwarf_debug_abbrev(".debug_abbrev"); 777 static ConstString g_sect_name_dwarf_debug_aranges(".debug_aranges"); 778 static ConstString g_sect_name_dwarf_debug_frame(".debug_frame"); 779 static ConstString g_sect_name_dwarf_debug_info(".debug_info"); 780 static ConstString g_sect_name_dwarf_debug_line(".debug_line"); 781 static ConstString g_sect_name_dwarf_debug_loc(".debug_loc"); 782 static ConstString g_sect_name_dwarf_debug_loclists(".debug_loclists"); 783 static ConstString g_sect_name_dwarf_debug_macinfo(".debug_macinfo"); 784 static ConstString g_sect_name_dwarf_debug_names(".debug_names"); 785 static ConstString g_sect_name_dwarf_debug_pubnames(".debug_pubnames"); 786 static ConstString g_sect_name_dwarf_debug_pubtypes(".debug_pubtypes"); 787 static ConstString g_sect_name_dwarf_debug_ranges(".debug_ranges"); 788 static ConstString g_sect_name_dwarf_debug_str(".debug_str"); 789 static ConstString g_sect_name_dwarf_debug_types(".debug_types"); 790 static ConstString g_sect_name_eh_frame(".eh_frame"); 791 static ConstString g_sect_name_go_symtab(".gosymtab"); 792 SectionType section_type = eSectionTypeOther; 793 if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_CNT_CODE && 794 ((const_sect_name == g_code_sect_name) || 795 (const_sect_name == g_CODE_sect_name))) { 796 section_type = eSectionTypeCode; 797 } else if (m_sect_headers[idx].flags & 798 llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA && 799 ((const_sect_name == g_data_sect_name) || 800 (const_sect_name == g_DATA_sect_name))) { 801 if (m_sect_headers[idx].size == 0 && m_sect_headers[idx].offset == 0) 802 section_type = eSectionTypeZeroFill; 803 else 804 section_type = eSectionTypeData; 805 } else if (m_sect_headers[idx].flags & 806 llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA && 807 ((const_sect_name == g_bss_sect_name) || 808 (const_sect_name == g_BSS_sect_name))) { 809 if (m_sect_headers[idx].size == 0) 810 section_type = eSectionTypeZeroFill; 811 else 812 section_type = eSectionTypeData; 813 } else if (const_sect_name == g_debug_sect_name) { 814 section_type = eSectionTypeDebug; 815 } else if (const_sect_name == g_stabstr_sect_name) { 816 section_type = eSectionTypeDataCString; 817 } else if (const_sect_name == g_reloc_sect_name) { 818 section_type = eSectionTypeOther; 819 } else if (const_sect_name == g_sect_name_dwarf_debug_abbrev) 820 section_type = eSectionTypeDWARFDebugAbbrev; 821 else if (const_sect_name == g_sect_name_dwarf_debug_aranges) 822 section_type = eSectionTypeDWARFDebugAranges; 823 else if (const_sect_name == g_sect_name_dwarf_debug_frame) 824 section_type = eSectionTypeDWARFDebugFrame; 825 else if (const_sect_name == g_sect_name_dwarf_debug_info) 826 section_type = eSectionTypeDWARFDebugInfo; 827 else if (const_sect_name == g_sect_name_dwarf_debug_line) 828 section_type = eSectionTypeDWARFDebugLine; 829 else if (const_sect_name == g_sect_name_dwarf_debug_loc) 830 section_type = eSectionTypeDWARFDebugLoc; 831 else if (const_sect_name == g_sect_name_dwarf_debug_loclists) 832 section_type = eSectionTypeDWARFDebugLocLists; 833 else if (const_sect_name == g_sect_name_dwarf_debug_macinfo) 834 section_type = eSectionTypeDWARFDebugMacInfo; 835 else if (const_sect_name == g_sect_name_dwarf_debug_names) 836 section_type = eSectionTypeDWARFDebugNames; 837 else if (const_sect_name == g_sect_name_dwarf_debug_pubnames) 838 section_type = eSectionTypeDWARFDebugPubNames; 839 else if (const_sect_name == g_sect_name_dwarf_debug_pubtypes) 840 section_type = eSectionTypeDWARFDebugPubTypes; 841 else if (const_sect_name == g_sect_name_dwarf_debug_ranges) 842 section_type = eSectionTypeDWARFDebugRanges; 843 else if (const_sect_name == g_sect_name_dwarf_debug_str) 844 section_type = eSectionTypeDWARFDebugStr; 845 else if (const_sect_name == g_sect_name_dwarf_debug_types) 846 section_type = eSectionTypeDWARFDebugTypes; 847 else if (const_sect_name == g_sect_name_eh_frame) 848 section_type = eSectionTypeEHFrame; 849 else if (const_sect_name == g_sect_name_go_symtab) 850 section_type = eSectionTypeGoSymtab; 851 else if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_CNT_CODE) { 852 section_type = eSectionTypeCode; 853 } else if (m_sect_headers[idx].flags & 854 llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA) { 855 section_type = eSectionTypeData; 856 } else if (m_sect_headers[idx].flags & 857 llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA) { 858 if (m_sect_headers[idx].size == 0) 859 section_type = eSectionTypeZeroFill; 860 else 861 section_type = eSectionTypeData; 862 } 863 864 SectionSP section_sp(new Section( 865 image_sp, // Parent section 866 module_sp, // Module to which this section belongs 867 this, // Object file to which this section belongs 868 idx + 1, // Section ID is the 1 based section index. 869 const_sect_name, // Name of this section 870 section_type, 871 m_sect_headers[idx].vmaddr, // File VM address == addresses as 872 // they are found in the object file 873 m_sect_headers[idx].vmsize, // VM size in bytes of this section 874 m_sect_headers[idx] 875 .offset, // Offset to the data for this section in the file 876 m_sect_headers[idx] 877 .size, // Size in bytes of this section as found in the file 878 m_coff_header_opt.sect_alignment, // Section alignment 879 m_sect_headers[idx].flags)); // Flags for this section 880 881 image_sp->GetChildren().AddSection(std::move(section_sp)); 882 } 883 } 884 } 885 886 UUID ObjectFilePECOFF::GetUUID() { 887 if (m_uuid.IsValid()) 888 return m_uuid; 889 890 if (!CreateBinary()) 891 return UUID(); 892 893 auto COFFObj = 894 llvm::cast<llvm::object::COFFObjectFile>(m_owningbin->getBinary()); 895 896 m_uuid = GetCoffUUID(COFFObj); 897 return m_uuid; 898 } 899 900 uint32_t ObjectFilePECOFF::ParseDependentModules() { 901 ModuleSP module_sp(GetModule()); 902 if (!module_sp) 903 return 0; 904 905 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 906 if (m_deps_filespec) 907 return m_deps_filespec->GetSize(); 908 909 // Cache coff binary if it is not done yet. 910 if (!CreateBinary()) 911 return 0; 912 913 Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT)); 914 if (log) 915 log->Printf("%p ObjectFilePECOFF::ParseDependentModules() module = %p " 916 "(%s), binary = %p (Bin = %p)", 917 static_cast<void *>(this), static_cast<void *>(module_sp.get()), 918 module_sp->GetSpecificationDescription().c_str(), 919 static_cast<void *>(m_owningbin.getPointer()), 920 static_cast<void *>(m_owningbin->getBinary())); 921 922 auto COFFObj = 923 llvm::dyn_cast<llvm::object::COFFObjectFile>(m_owningbin->getBinary()); 924 if (!COFFObj) 925 return 0; 926 927 m_deps_filespec = FileSpecList(); 928 929 for (const auto &entry : COFFObj->import_directories()) { 930 llvm::StringRef dll_name; 931 auto ec = entry.getName(dll_name); 932 // Report a bogus entry. 933 if (ec != std::error_code()) { 934 if (log) 935 log->Printf("ObjectFilePECOFF::ParseDependentModules() - failed to get " 936 "import directory entry name: %s", 937 ec.message().c_str()); 938 continue; 939 } 940 941 // At this moment we only have the base name of the DLL. The full path can 942 // only be seen after the dynamic loading. Our best guess is Try to get it 943 // with the help of the object file's directory. 944 llvm::SmallString<128> dll_fullpath; 945 FileSpec dll_specs(dll_name); 946 dll_specs.GetDirectory().SetString(m_file.GetDirectory().GetCString()); 947 948 if (!llvm::sys::fs::real_path(dll_specs.GetPath(), dll_fullpath)) 949 m_deps_filespec->Append(FileSpec(dll_fullpath)); 950 else { 951 // Known DLLs or DLL not found in the object file directory. 952 m_deps_filespec->Append(FileSpec(dll_name)); 953 } 954 } 955 return m_deps_filespec->GetSize(); 956 } 957 958 uint32_t ObjectFilePECOFF::GetDependentModules(FileSpecList &files) { 959 auto num_modules = ParseDependentModules(); 960 auto original_size = files.GetSize(); 961 962 for (unsigned i = 0; i < num_modules; ++i) 963 files.AppendIfUnique(m_deps_filespec->GetFileSpecAtIndex(i)); 964 965 return files.GetSize() - original_size; 966 } 967 968 lldb_private::Address ObjectFilePECOFF::GetEntryPointAddress() { 969 if (m_entry_point_address.IsValid()) 970 return m_entry_point_address; 971 972 if (!ParseHeader() || !IsExecutable()) 973 return m_entry_point_address; 974 975 SectionList *section_list = GetSectionList(); 976 addr_t file_addr = m_coff_header_opt.entry + m_coff_header_opt.image_base; 977 978 if (!section_list) 979 m_entry_point_address.SetOffset(file_addr); 980 else 981 m_entry_point_address.ResolveAddressUsingFileSections(file_addr, 982 section_list); 983 return m_entry_point_address; 984 } 985 986 Address ObjectFilePECOFF::GetBaseAddress() { 987 return Address(GetSectionList()->GetSectionAtIndex(0), 0); 988 } 989 990 // Dump 991 // 992 // Dump the specifics of the runtime file container (such as any headers 993 // segments, sections, etc). 994 void ObjectFilePECOFF::Dump(Stream *s) { 995 ModuleSP module_sp(GetModule()); 996 if (module_sp) { 997 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex()); 998 s->Printf("%p: ", static_cast<void *>(this)); 999 s->Indent(); 1000 s->PutCString("ObjectFilePECOFF"); 1001 1002 ArchSpec header_arch = GetArchitecture(); 1003 1004 *s << ", file = '" << m_file 1005 << "', arch = " << header_arch.GetArchitectureName() << "\n"; 1006 1007 SectionList *sections = GetSectionList(); 1008 if (sections) 1009 sections->Dump(s, nullptr, true, UINT32_MAX); 1010 1011 if (m_symtab_up) 1012 m_symtab_up->Dump(s, nullptr, eSortOrderNone); 1013 1014 if (m_dos_header.e_magic) 1015 DumpDOSHeader(s, m_dos_header); 1016 if (m_coff_header.machine) { 1017 DumpCOFFHeader(s, m_coff_header); 1018 if (m_coff_header.hdrsize) 1019 DumpOptCOFFHeader(s, m_coff_header_opt); 1020 } 1021 s->EOL(); 1022 DumpSectionHeaders(s); 1023 s->EOL(); 1024 1025 DumpDependentModules(s); 1026 s->EOL(); 1027 } 1028 } 1029 1030 // DumpDOSHeader 1031 // 1032 // Dump the MS-DOS header to the specified output stream 1033 void ObjectFilePECOFF::DumpDOSHeader(Stream *s, const dos_header_t &header) { 1034 s->PutCString("MSDOS Header\n"); 1035 s->Printf(" e_magic = 0x%4.4x\n", header.e_magic); 1036 s->Printf(" e_cblp = 0x%4.4x\n", header.e_cblp); 1037 s->Printf(" e_cp = 0x%4.4x\n", header.e_cp); 1038 s->Printf(" e_crlc = 0x%4.4x\n", header.e_crlc); 1039 s->Printf(" e_cparhdr = 0x%4.4x\n", header.e_cparhdr); 1040 s->Printf(" e_minalloc = 0x%4.4x\n", header.e_minalloc); 1041 s->Printf(" e_maxalloc = 0x%4.4x\n", header.e_maxalloc); 1042 s->Printf(" e_ss = 0x%4.4x\n", header.e_ss); 1043 s->Printf(" e_sp = 0x%4.4x\n", header.e_sp); 1044 s->Printf(" e_csum = 0x%4.4x\n", header.e_csum); 1045 s->Printf(" e_ip = 0x%4.4x\n", header.e_ip); 1046 s->Printf(" e_cs = 0x%4.4x\n", header.e_cs); 1047 s->Printf(" e_lfarlc = 0x%4.4x\n", header.e_lfarlc); 1048 s->Printf(" e_ovno = 0x%4.4x\n", header.e_ovno); 1049 s->Printf(" e_res[4] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 1050 header.e_res[0], header.e_res[1], header.e_res[2], header.e_res[3]); 1051 s->Printf(" e_oemid = 0x%4.4x\n", header.e_oemid); 1052 s->Printf(" e_oeminfo = 0x%4.4x\n", header.e_oeminfo); 1053 s->Printf(" e_res2[10] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, " 1054 "0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n", 1055 header.e_res2[0], header.e_res2[1], header.e_res2[2], 1056 header.e_res2[3], header.e_res2[4], header.e_res2[5], 1057 header.e_res2[6], header.e_res2[7], header.e_res2[8], 1058 header.e_res2[9]); 1059 s->Printf(" e_lfanew = 0x%8.8x\n", header.e_lfanew); 1060 } 1061 1062 // DumpCOFFHeader 1063 // 1064 // Dump the COFF header to the specified output stream 1065 void ObjectFilePECOFF::DumpCOFFHeader(Stream *s, const coff_header_t &header) { 1066 s->PutCString("COFF Header\n"); 1067 s->Printf(" machine = 0x%4.4x\n", header.machine); 1068 s->Printf(" nsects = 0x%4.4x\n", header.nsects); 1069 s->Printf(" modtime = 0x%8.8x\n", header.modtime); 1070 s->Printf(" symoff = 0x%8.8x\n", header.symoff); 1071 s->Printf(" nsyms = 0x%8.8x\n", header.nsyms); 1072 s->Printf(" hdrsize = 0x%4.4x\n", header.hdrsize); 1073 } 1074 1075 // DumpOptCOFFHeader 1076 // 1077 // Dump the optional COFF header to the specified output stream 1078 void ObjectFilePECOFF::DumpOptCOFFHeader(Stream *s, 1079 const coff_opt_header_t &header) { 1080 s->PutCString("Optional COFF Header\n"); 1081 s->Printf(" magic = 0x%4.4x\n", header.magic); 1082 s->Printf(" major_linker_version = 0x%2.2x\n", 1083 header.major_linker_version); 1084 s->Printf(" minor_linker_version = 0x%2.2x\n", 1085 header.minor_linker_version); 1086 s->Printf(" code_size = 0x%8.8x\n", header.code_size); 1087 s->Printf(" data_size = 0x%8.8x\n", header.data_size); 1088 s->Printf(" bss_size = 0x%8.8x\n", header.bss_size); 1089 s->Printf(" entry = 0x%8.8x\n", header.entry); 1090 s->Printf(" code_offset = 0x%8.8x\n", header.code_offset); 1091 s->Printf(" data_offset = 0x%8.8x\n", header.data_offset); 1092 s->Printf(" image_base = 0x%16.16" PRIx64 "\n", 1093 header.image_base); 1094 s->Printf(" sect_alignment = 0x%8.8x\n", header.sect_alignment); 1095 s->Printf(" file_alignment = 0x%8.8x\n", header.file_alignment); 1096 s->Printf(" major_os_system_version = 0x%4.4x\n", 1097 header.major_os_system_version); 1098 s->Printf(" minor_os_system_version = 0x%4.4x\n", 1099 header.minor_os_system_version); 1100 s->Printf(" major_image_version = 0x%4.4x\n", 1101 header.major_image_version); 1102 s->Printf(" minor_image_version = 0x%4.4x\n", 1103 header.minor_image_version); 1104 s->Printf(" major_subsystem_version = 0x%4.4x\n", 1105 header.major_subsystem_version); 1106 s->Printf(" minor_subsystem_version = 0x%4.4x\n", 1107 header.minor_subsystem_version); 1108 s->Printf(" reserved1 = 0x%8.8x\n", header.reserved1); 1109 s->Printf(" image_size = 0x%8.8x\n", header.image_size); 1110 s->Printf(" header_size = 0x%8.8x\n", header.header_size); 1111 s->Printf(" checksum = 0x%8.8x\n", header.checksum); 1112 s->Printf(" subsystem = 0x%4.4x\n", header.subsystem); 1113 s->Printf(" dll_flags = 0x%4.4x\n", header.dll_flags); 1114 s->Printf(" stack_reserve_size = 0x%16.16" PRIx64 "\n", 1115 header.stack_reserve_size); 1116 s->Printf(" stack_commit_size = 0x%16.16" PRIx64 "\n", 1117 header.stack_commit_size); 1118 s->Printf(" heap_reserve_size = 0x%16.16" PRIx64 "\n", 1119 header.heap_reserve_size); 1120 s->Printf(" heap_commit_size = 0x%16.16" PRIx64 "\n", 1121 header.heap_commit_size); 1122 s->Printf(" loader_flags = 0x%8.8x\n", header.loader_flags); 1123 s->Printf(" num_data_dir_entries = 0x%8.8x\n", 1124 (uint32_t)header.data_dirs.size()); 1125 uint32_t i; 1126 for (i = 0; i < header.data_dirs.size(); i++) { 1127 s->Printf(" data_dirs[%2u] vmaddr = 0x%8.8x, vmsize = 0x%8.8x\n", i, 1128 header.data_dirs[i].vmaddr, header.data_dirs[i].vmsize); 1129 } 1130 } 1131 // DumpSectionHeader 1132 // 1133 // Dump a single ELF section header to the specified output stream 1134 void ObjectFilePECOFF::DumpSectionHeader(Stream *s, 1135 const section_header_t &sh) { 1136 std::string name = GetSectionName(sh); 1137 s->Printf("%-16s 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%4.4x " 1138 "0x%4.4x 0x%8.8x\n", 1139 name.c_str(), sh.vmaddr, sh.vmsize, sh.offset, sh.size, sh.reloff, 1140 sh.lineoff, sh.nreloc, sh.nline, sh.flags); 1141 } 1142 1143 // DumpSectionHeaders 1144 // 1145 // Dump all of the ELF section header to the specified output stream 1146 void ObjectFilePECOFF::DumpSectionHeaders(Stream *s) { 1147 1148 s->PutCString("Section Headers\n"); 1149 s->PutCString("IDX name vm addr vm size file off file " 1150 "size reloc off line off nreloc nline flags\n"); 1151 s->PutCString("==== ---------------- ---------- ---------- ---------- " 1152 "---------- ---------- ---------- ------ ------ ----------\n"); 1153 1154 uint32_t idx = 0; 1155 SectionHeaderCollIter pos, end = m_sect_headers.end(); 1156 1157 for (pos = m_sect_headers.begin(); pos != end; ++pos, ++idx) { 1158 s->Printf("[%2u] ", idx); 1159 ObjectFilePECOFF::DumpSectionHeader(s, *pos); 1160 } 1161 } 1162 1163 // DumpDependentModules 1164 // 1165 // Dump all of the dependent modules to the specified output stream 1166 void ObjectFilePECOFF::DumpDependentModules(lldb_private::Stream *s) { 1167 auto num_modules = ParseDependentModules(); 1168 if (num_modules > 0) { 1169 s->PutCString("Dependent Modules\n"); 1170 for (unsigned i = 0; i < num_modules; ++i) { 1171 auto spec = m_deps_filespec->GetFileSpecAtIndex(i); 1172 s->Printf(" %s\n", spec.GetFilename().GetCString()); 1173 } 1174 } 1175 } 1176 1177 bool ObjectFilePECOFF::IsWindowsSubsystem() { 1178 switch (m_coff_header_opt.subsystem) { 1179 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE: 1180 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_GUI: 1181 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CUI: 1182 case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE_WINDOWS: 1183 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CE_GUI: 1184 case llvm::COFF::IMAGE_SUBSYSTEM_XBOX: 1185 case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_BOOT_APPLICATION: 1186 return true; 1187 default: 1188 return false; 1189 } 1190 } 1191 1192 ArchSpec ObjectFilePECOFF::GetArchitecture() { 1193 uint16_t machine = m_coff_header.machine; 1194 switch (machine) { 1195 default: 1196 break; 1197 case llvm::COFF::IMAGE_FILE_MACHINE_AMD64: 1198 case llvm::COFF::IMAGE_FILE_MACHINE_I386: 1199 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPC: 1200 case llvm::COFF::IMAGE_FILE_MACHINE_POWERPCFP: 1201 case llvm::COFF::IMAGE_FILE_MACHINE_ARM: 1202 case llvm::COFF::IMAGE_FILE_MACHINE_ARMNT: 1203 case llvm::COFF::IMAGE_FILE_MACHINE_THUMB: 1204 ArchSpec arch; 1205 arch.SetArchitecture(eArchTypeCOFF, machine, LLDB_INVALID_CPUTYPE, 1206 IsWindowsSubsystem() ? llvm::Triple::Win32 1207 : llvm::Triple::UnknownOS); 1208 return arch; 1209 } 1210 return ArchSpec(); 1211 } 1212 1213 ObjectFile::Type ObjectFilePECOFF::CalculateType() { 1214 if (m_coff_header.machine != 0) { 1215 if ((m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0) 1216 return eTypeExecutable; 1217 else 1218 return eTypeSharedLibrary; 1219 } 1220 return eTypeExecutable; 1221 } 1222 1223 ObjectFile::Strata ObjectFilePECOFF::CalculateStrata() { return eStrataUser; } 1224 1225 // PluginInterface protocol 1226 ConstString ObjectFilePECOFF::GetPluginName() { return GetPluginNameStatic(); } 1227 1228 uint32_t ObjectFilePECOFF::GetPluginVersion() { return 1; } 1229