1 //===- yaml2coff - Convert YAML to a COFF object file ---------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 /// 10 /// \file 11 /// \brief The COFF component of yaml2obj. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #include "yaml2obj.h" 16 #include "llvm/ADT/STLExtras.h" 17 #include "llvm/ADT/SmallString.h" 18 #include "llvm/ADT/StringExtras.h" 19 #include "llvm/ADT/StringMap.h" 20 #include "llvm/ADT/StringSwitch.h" 21 #include "llvm/Object/COFF.h" 22 #include "llvm/Object/COFFYAML.h" 23 #include "llvm/Support/Endian.h" 24 #include "llvm/Support/MemoryBuffer.h" 25 #include "llvm/Support/SourceMgr.h" 26 #include "llvm/Support/raw_ostream.h" 27 #include <vector> 28 29 using namespace llvm; 30 31 /// This parses a yaml stream that represents a COFF object file. 32 /// See docs/yaml2obj for the yaml scheema. 33 struct COFFParser { 34 COFFParser(COFFYAML::Object &Obj) 35 : Obj(Obj), SectionTableStart(0), SectionTableSize(0) { 36 // A COFF string table always starts with a 4 byte size field. Offsets into 37 // it include this size, so allocate it now. 38 StringTable.append(4, char(0)); 39 } 40 41 bool useBigObj() const { 42 return static_cast<int32_t>(Obj.Sections.size()) > 43 COFF::MaxNumberOfSections16; 44 } 45 46 bool isPE() const { return Obj.OptionalHeader.hasValue(); } 47 bool is64Bit() const { 48 return Obj.Header.Machine == COFF::IMAGE_FILE_MACHINE_AMD64; 49 } 50 51 uint32_t getFileAlignment() const { 52 return Obj.OptionalHeader->Header.FileAlignment; 53 } 54 55 unsigned getHeaderSize() const { 56 return useBigObj() ? COFF::Header32Size : COFF::Header16Size; 57 } 58 59 unsigned getSymbolSize() const { 60 return useBigObj() ? COFF::Symbol32Size : COFF::Symbol16Size; 61 } 62 63 bool parseSections() { 64 for (std::vector<COFFYAML::Section>::iterator i = Obj.Sections.begin(), 65 e = Obj.Sections.end(); i != e; ++i) { 66 COFFYAML::Section &Sec = *i; 67 68 // If the name is less than 8 bytes, store it in place, otherwise 69 // store it in the string table. 70 StringRef Name = Sec.Name; 71 72 if (Name.size() <= COFF::NameSize) { 73 std::copy(Name.begin(), Name.end(), Sec.Header.Name); 74 } else { 75 // Add string to the string table and format the index for output. 76 unsigned Index = getStringIndex(Name); 77 std::string str = utostr(Index); 78 if (str.size() > 7) { 79 errs() << "String table got too large"; 80 return false; 81 } 82 Sec.Header.Name[0] = '/'; 83 std::copy(str.begin(), str.end(), Sec.Header.Name + 1); 84 } 85 86 Sec.Header.Characteristics |= (Log2_32(Sec.Alignment) + 1) << 20; 87 } 88 return true; 89 } 90 91 bool parseSymbols() { 92 for (std::vector<COFFYAML::Symbol>::iterator i = Obj.Symbols.begin(), 93 e = Obj.Symbols.end(); i != e; ++i) { 94 COFFYAML::Symbol &Sym = *i; 95 96 // If the name is less than 8 bytes, store it in place, otherwise 97 // store it in the string table. 98 StringRef Name = Sym.Name; 99 if (Name.size() <= COFF::NameSize) { 100 std::copy(Name.begin(), Name.end(), Sym.Header.Name); 101 } else { 102 // Add string to the string table and format the index for output. 103 unsigned Index = getStringIndex(Name); 104 *reinterpret_cast<support::aligned_ulittle32_t*>( 105 Sym.Header.Name + 4) = Index; 106 } 107 108 Sym.Header.Type = Sym.SimpleType; 109 Sym.Header.Type |= Sym.ComplexType << COFF::SCT_COMPLEX_TYPE_SHIFT; 110 } 111 return true; 112 } 113 114 bool parse() { 115 if (!parseSections()) 116 return false; 117 if (!parseSymbols()) 118 return false; 119 return true; 120 } 121 122 unsigned getStringIndex(StringRef Str) { 123 StringMap<unsigned>::iterator i = StringTableMap.find(Str); 124 if (i == StringTableMap.end()) { 125 unsigned Index = StringTable.size(); 126 StringTable.append(Str.begin(), Str.end()); 127 StringTable.push_back(0); 128 StringTableMap[Str] = Index; 129 return Index; 130 } 131 return i->second; 132 } 133 134 COFFYAML::Object &Obj; 135 136 StringMap<unsigned> StringTableMap; 137 std::string StringTable; 138 uint32_t SectionTableStart; 139 uint32_t SectionTableSize; 140 }; 141 142 // Take a CP and assign addresses and sizes to everything. Returns false if the 143 // layout is not valid to do. 144 static bool layoutOptionalHeader(COFFParser &CP) { 145 if (!CP.isPE()) 146 return true; 147 unsigned PEHeaderSize = CP.is64Bit() ? sizeof(object::pe32plus_header) 148 : sizeof(object::pe32_header); 149 CP.Obj.Header.SizeOfOptionalHeader = 150 PEHeaderSize + 151 sizeof(object::data_directory) * (COFF::NUM_DATA_DIRECTORIES + 1); 152 return true; 153 } 154 155 namespace { 156 enum { DOSStubSize = 128 }; 157 } 158 159 // Take a CP and assign addresses and sizes to everything. Returns false if the 160 // layout is not valid to do. 161 static bool layoutCOFF(COFFParser &CP) { 162 // The section table starts immediately after the header, including the 163 // optional header. 164 CP.SectionTableStart = 165 CP.getHeaderSize() + CP.Obj.Header.SizeOfOptionalHeader; 166 if (CP.isPE()) 167 CP.SectionTableStart += DOSStubSize + sizeof(COFF::PEMagic); 168 CP.SectionTableSize = COFF::SectionSize * CP.Obj.Sections.size(); 169 170 uint32_t CurrentSectionDataOffset = 171 CP.SectionTableStart + CP.SectionTableSize; 172 173 // Assign each section data address consecutively. 174 for (COFFYAML::Section &S : CP.Obj.Sections) { 175 if (S.SectionData.binary_size() > 0) { 176 CurrentSectionDataOffset = RoundUpToAlignment( 177 CurrentSectionDataOffset, CP.isPE() ? CP.getFileAlignment() : 4); 178 S.Header.SizeOfRawData = S.SectionData.binary_size(); 179 if (CP.isPE()) 180 S.Header.SizeOfRawData = 181 RoundUpToAlignment(S.Header.SizeOfRawData, CP.getFileAlignment()); 182 S.Header.PointerToRawData = CurrentSectionDataOffset; 183 CurrentSectionDataOffset += S.Header.SizeOfRawData; 184 if (!S.Relocations.empty()) { 185 S.Header.PointerToRelocations = CurrentSectionDataOffset; 186 S.Header.NumberOfRelocations = S.Relocations.size(); 187 CurrentSectionDataOffset += 188 S.Header.NumberOfRelocations * COFF::RelocationSize; 189 } 190 } else { 191 S.Header.SizeOfRawData = 0; 192 S.Header.PointerToRawData = 0; 193 } 194 } 195 196 uint32_t SymbolTableStart = CurrentSectionDataOffset; 197 198 // Calculate number of symbols. 199 uint32_t NumberOfSymbols = 0; 200 for (std::vector<COFFYAML::Symbol>::iterator i = CP.Obj.Symbols.begin(), 201 e = CP.Obj.Symbols.end(); 202 i != e; ++i) { 203 uint32_t NumberOfAuxSymbols = 0; 204 if (i->FunctionDefinition) 205 NumberOfAuxSymbols += 1; 206 if (i->bfAndefSymbol) 207 NumberOfAuxSymbols += 1; 208 if (i->WeakExternal) 209 NumberOfAuxSymbols += 1; 210 if (!i->File.empty()) 211 NumberOfAuxSymbols += 212 (i->File.size() + CP.getSymbolSize() - 1) / CP.getSymbolSize(); 213 if (i->SectionDefinition) 214 NumberOfAuxSymbols += 1; 215 if (i->CLRToken) 216 NumberOfAuxSymbols += 1; 217 i->Header.NumberOfAuxSymbols = NumberOfAuxSymbols; 218 NumberOfSymbols += 1 + NumberOfAuxSymbols; 219 } 220 221 // Store all the allocated start addresses in the header. 222 CP.Obj.Header.NumberOfSections = CP.Obj.Sections.size(); 223 CP.Obj.Header.NumberOfSymbols = NumberOfSymbols; 224 if (NumberOfSymbols > 0 || CP.StringTable.size() > 4) 225 CP.Obj.Header.PointerToSymbolTable = SymbolTableStart; 226 else 227 CP.Obj.Header.PointerToSymbolTable = 0; 228 229 *reinterpret_cast<support::ulittle32_t *>(&CP.StringTable[0]) 230 = CP.StringTable.size(); 231 232 return true; 233 } 234 235 template <typename value_type> 236 struct binary_le_impl { 237 value_type Value; 238 binary_le_impl(value_type V) : Value(V) {} 239 }; 240 241 template <typename value_type> 242 raw_ostream &operator <<( raw_ostream &OS 243 , const binary_le_impl<value_type> &BLE) { 244 char Buffer[sizeof(BLE.Value)]; 245 support::endian::write<value_type, support::little, support::unaligned>( 246 Buffer, BLE.Value); 247 OS.write(Buffer, sizeof(BLE.Value)); 248 return OS; 249 } 250 251 template <typename value_type> 252 binary_le_impl<value_type> binary_le(value_type V) { 253 return binary_le_impl<value_type>(V); 254 } 255 256 template <size_t NumBytes> struct zeros_impl {}; 257 258 template <size_t NumBytes> 259 raw_ostream &operator<<(raw_ostream &OS, const zeros_impl<NumBytes> &) { 260 char Buffer[NumBytes]; 261 memset(Buffer, 0, sizeof(Buffer)); 262 OS.write(Buffer, sizeof(Buffer)); 263 return OS; 264 } 265 266 template <typename T> 267 zeros_impl<sizeof(T)> zeros(const T &) { 268 return zeros_impl<sizeof(T)>(); 269 } 270 271 struct num_zeros_impl { 272 size_t N; 273 num_zeros_impl(size_t N) : N(N) {} 274 }; 275 276 raw_ostream &operator<<(raw_ostream &OS, const num_zeros_impl &NZI) { 277 for (size_t I = 0; I != NZI.N; ++I) 278 OS.write(0); 279 return OS; 280 } 281 282 static num_zeros_impl num_zeros(size_t N) { 283 num_zeros_impl NZI(N); 284 return NZI; 285 } 286 287 template <typename T> 288 static uint32_t initializeOptionalHeader(COFFParser &CP, uint16_t Magic, T Header) { 289 memset(Header, 0, sizeof(*Header)); 290 Header->Magic = Magic; 291 Header->SectionAlignment = CP.Obj.OptionalHeader->Header.SectionAlignment; 292 Header->FileAlignment = CP.Obj.OptionalHeader->Header.FileAlignment; 293 uint32_t SizeOfCode = 0, SizeOfInitializedData = 0, 294 SizeOfUninitializedData = 0; 295 uint32_t SizeOfHeaders = RoundUpToAlignment( 296 CP.SectionTableStart + CP.SectionTableSize, Header->FileAlignment); 297 uint32_t SizeOfImage = 298 RoundUpToAlignment(SizeOfHeaders, Header->SectionAlignment); 299 uint32_t BaseOfData = 0; 300 for (const COFFYAML::Section &S : CP.Obj.Sections) { 301 if (S.Header.Characteristics & COFF::IMAGE_SCN_CNT_CODE) 302 SizeOfCode += S.Header.SizeOfRawData; 303 if (S.Header.Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA) 304 SizeOfInitializedData += S.Header.SizeOfRawData; 305 if (S.Header.Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA) 306 SizeOfUninitializedData += S.Header.SizeOfRawData; 307 if (S.Name.equals(".text")) 308 Header->BaseOfCode = S.Header.VirtualAddress; // RVA 309 else if (S.Name.equals(".data")) 310 BaseOfData = S.Header.VirtualAddress; // RVA 311 if (S.Header.VirtualAddress) 312 SizeOfImage += 313 RoundUpToAlignment(S.Header.VirtualSize, Header->SectionAlignment); 314 } 315 Header->SizeOfCode = SizeOfCode; 316 Header->SizeOfInitializedData = SizeOfInitializedData; 317 Header->SizeOfUninitializedData = SizeOfUninitializedData; 318 Header->AddressOfEntryPoint = 319 CP.Obj.OptionalHeader->Header.AddressOfEntryPoint; // RVA 320 Header->ImageBase = CP.Obj.OptionalHeader->Header.ImageBase; 321 Header->MajorOperatingSystemVersion = 322 CP.Obj.OptionalHeader->Header.MajorOperatingSystemVersion; 323 Header->MinorOperatingSystemVersion = 324 CP.Obj.OptionalHeader->Header.MinorOperatingSystemVersion; 325 Header->MajorImageVersion = 326 CP.Obj.OptionalHeader->Header.MajorImageVersion; 327 Header->MinorImageVersion = 328 CP.Obj.OptionalHeader->Header.MinorImageVersion; 329 Header->MajorSubsystemVersion = 330 CP.Obj.OptionalHeader->Header.MajorSubsystemVersion; 331 Header->MinorSubsystemVersion = 332 CP.Obj.OptionalHeader->Header.MinorSubsystemVersion; 333 Header->SizeOfImage = SizeOfImage; 334 Header->SizeOfHeaders = SizeOfHeaders; 335 Header->Subsystem = CP.Obj.OptionalHeader->Header.Subsystem; 336 Header->DLLCharacteristics = CP.Obj.OptionalHeader->Header.DLLCharacteristics; 337 Header->SizeOfStackReserve = CP.Obj.OptionalHeader->Header.SizeOfStackReserve; 338 Header->SizeOfStackCommit = CP.Obj.OptionalHeader->Header.SizeOfStackCommit; 339 Header->SizeOfHeapReserve = CP.Obj.OptionalHeader->Header.SizeOfHeapReserve; 340 Header->SizeOfHeapCommit = CP.Obj.OptionalHeader->Header.SizeOfHeapCommit; 341 Header->NumberOfRvaAndSize = COFF::NUM_DATA_DIRECTORIES + 1; 342 return BaseOfData; 343 } 344 345 static bool writeCOFF(COFFParser &CP, raw_ostream &OS) { 346 if (CP.isPE()) { 347 // PE files start with a DOS stub. 348 object::dos_header DH; 349 memset(&DH, 0, sizeof(DH)); 350 351 // DOS EXEs start with "MZ" magic. 352 DH.Magic[0] = 'M'; 353 DH.Magic[1] = 'Z'; 354 // Initializing the AddressOfRelocationTable is strictly optional but 355 // mollifies certain tools which expect it to have a value greater than 356 // 0x40. 357 DH.AddressOfRelocationTable = sizeof(DH); 358 // This is the address of the PE signature. 359 DH.AddressOfNewExeHeader = DOSStubSize; 360 361 // Write out our DOS stub. 362 OS.write(reinterpret_cast<char *>(&DH), sizeof(DH)); 363 // Write padding until we reach the position of where our PE signature 364 // should live. 365 OS << num_zeros(DOSStubSize - sizeof(DH)); 366 // Write out the PE signature. 367 OS.write(COFF::PEMagic, sizeof(COFF::PEMagic)); 368 } 369 if (CP.useBigObj()) { 370 OS << binary_le(static_cast<uint16_t>(COFF::IMAGE_FILE_MACHINE_UNKNOWN)) 371 << binary_le(static_cast<uint16_t>(0xffff)) 372 << binary_le(static_cast<uint16_t>(COFF::BigObjHeader::MinBigObjectVersion)) 373 << binary_le(CP.Obj.Header.Machine) 374 << binary_le(CP.Obj.Header.TimeDateStamp); 375 OS.write(COFF::BigObjMagic, sizeof(COFF::BigObjMagic)); 376 OS << zeros(uint32_t(0)) 377 << zeros(uint32_t(0)) 378 << zeros(uint32_t(0)) 379 << zeros(uint32_t(0)) 380 << binary_le(CP.Obj.Header.NumberOfSections) 381 << binary_le(CP.Obj.Header.PointerToSymbolTable) 382 << binary_le(CP.Obj.Header.NumberOfSymbols); 383 } else { 384 OS << binary_le(CP.Obj.Header.Machine) 385 << binary_le(static_cast<int16_t>(CP.Obj.Header.NumberOfSections)) 386 << binary_le(CP.Obj.Header.TimeDateStamp) 387 << binary_le(CP.Obj.Header.PointerToSymbolTable) 388 << binary_le(CP.Obj.Header.NumberOfSymbols) 389 << binary_le(CP.Obj.Header.SizeOfOptionalHeader) 390 << binary_le(CP.Obj.Header.Characteristics); 391 } 392 if (CP.isPE()) { 393 if (CP.is64Bit()) { 394 object::pe32plus_header PEH; 395 initializeOptionalHeader(CP, COFF::PE32Header::PE32_PLUS, &PEH); 396 OS.write(reinterpret_cast<char *>(&PEH), sizeof(PEH)); 397 } else { 398 object::pe32_header PEH; 399 uint32_t BaseOfData = initializeOptionalHeader(CP, COFF::PE32Header::PE32, &PEH); 400 PEH.BaseOfData = BaseOfData; 401 OS.write(reinterpret_cast<char *>(&PEH), sizeof(PEH)); 402 } 403 for (const Optional<COFF::DataDirectory> &DD : 404 CP.Obj.OptionalHeader->DataDirectories) { 405 if (!DD.hasValue()) { 406 OS << zeros(uint32_t(0)); 407 OS << zeros(uint32_t(0)); 408 } else { 409 OS << binary_le(DD->RelativeVirtualAddress); 410 OS << binary_le(DD->Size); 411 } 412 } 413 OS << zeros(uint32_t(0)); 414 OS << zeros(uint32_t(0)); 415 } 416 417 assert(OS.tell() == CP.SectionTableStart); 418 // Output section table. 419 for (std::vector<COFFYAML::Section>::iterator i = CP.Obj.Sections.begin(), 420 e = CP.Obj.Sections.end(); 421 i != e; ++i) { 422 OS.write(i->Header.Name, COFF::NameSize); 423 OS << binary_le(i->Header.VirtualSize) 424 << binary_le(i->Header.VirtualAddress) 425 << binary_le(i->Header.SizeOfRawData) 426 << binary_le(i->Header.PointerToRawData) 427 << binary_le(i->Header.PointerToRelocations) 428 << binary_le(i->Header.PointerToLineNumbers) 429 << binary_le(i->Header.NumberOfRelocations) 430 << binary_le(i->Header.NumberOfLineNumbers) 431 << binary_le(i->Header.Characteristics); 432 } 433 assert(OS.tell() == CP.SectionTableStart + CP.SectionTableSize); 434 435 unsigned CurSymbol = 0; 436 StringMap<unsigned> SymbolTableIndexMap; 437 for (std::vector<COFFYAML::Symbol>::iterator I = CP.Obj.Symbols.begin(), 438 E = CP.Obj.Symbols.end(); 439 I != E; ++I) { 440 SymbolTableIndexMap[I->Name] = CurSymbol; 441 CurSymbol += 1 + I->Header.NumberOfAuxSymbols; 442 } 443 444 // Output section data. 445 for (const COFFYAML::Section &S : CP.Obj.Sections) { 446 if (!S.Header.SizeOfRawData) 447 continue; 448 assert(S.Header.PointerToRawData >= OS.tell()); 449 OS << num_zeros(S.Header.PointerToRawData - OS.tell()); 450 S.SectionData.writeAsBinary(OS); 451 assert(S.Header.SizeOfRawData >= S.SectionData.binary_size()); 452 OS << num_zeros(S.Header.SizeOfRawData - S.SectionData.binary_size()); 453 for (const COFFYAML::Relocation &R : S.Relocations) { 454 uint32_t SymbolTableIndex = SymbolTableIndexMap[R.SymbolName]; 455 OS << binary_le(R.VirtualAddress) 456 << binary_le(SymbolTableIndex) 457 << binary_le(R.Type); 458 } 459 } 460 461 // Output symbol table. 462 463 for (std::vector<COFFYAML::Symbol>::const_iterator i = CP.Obj.Symbols.begin(), 464 e = CP.Obj.Symbols.end(); 465 i != e; ++i) { 466 OS.write(i->Header.Name, COFF::NameSize); 467 OS << binary_le(i->Header.Value); 468 if (CP.useBigObj()) 469 OS << binary_le(i->Header.SectionNumber); 470 else 471 OS << binary_le(static_cast<int16_t>(i->Header.SectionNumber)); 472 OS << binary_le(i->Header.Type) 473 << binary_le(i->Header.StorageClass) 474 << binary_le(i->Header.NumberOfAuxSymbols); 475 476 if (i->FunctionDefinition) 477 OS << binary_le(i->FunctionDefinition->TagIndex) 478 << binary_le(i->FunctionDefinition->TotalSize) 479 << binary_le(i->FunctionDefinition->PointerToLinenumber) 480 << binary_le(i->FunctionDefinition->PointerToNextFunction) 481 << zeros(i->FunctionDefinition->unused) 482 << num_zeros(CP.getSymbolSize() - COFF::Symbol16Size); 483 if (i->bfAndefSymbol) 484 OS << zeros(i->bfAndefSymbol->unused1) 485 << binary_le(i->bfAndefSymbol->Linenumber) 486 << zeros(i->bfAndefSymbol->unused2) 487 << binary_le(i->bfAndefSymbol->PointerToNextFunction) 488 << zeros(i->bfAndefSymbol->unused3) 489 << num_zeros(CP.getSymbolSize() - COFF::Symbol16Size); 490 if (i->WeakExternal) 491 OS << binary_le(i->WeakExternal->TagIndex) 492 << binary_le(i->WeakExternal->Characteristics) 493 << zeros(i->WeakExternal->unused) 494 << num_zeros(CP.getSymbolSize() - COFF::Symbol16Size); 495 if (!i->File.empty()) { 496 unsigned SymbolSize = CP.getSymbolSize(); 497 uint32_t NumberOfAuxRecords = 498 (i->File.size() + SymbolSize - 1) / SymbolSize; 499 uint32_t NumberOfAuxBytes = NumberOfAuxRecords * SymbolSize; 500 uint32_t NumZeros = NumberOfAuxBytes - i->File.size(); 501 OS.write(i->File.data(), i->File.size()); 502 OS << num_zeros(NumZeros); 503 } 504 if (i->SectionDefinition) 505 OS << binary_le(i->SectionDefinition->Length) 506 << binary_le(i->SectionDefinition->NumberOfRelocations) 507 << binary_le(i->SectionDefinition->NumberOfLinenumbers) 508 << binary_le(i->SectionDefinition->CheckSum) 509 << binary_le(static_cast<int16_t>(i->SectionDefinition->Number)) 510 << binary_le(i->SectionDefinition->Selection) 511 << zeros(i->SectionDefinition->unused) 512 << binary_le(static_cast<int16_t>(i->SectionDefinition->Number >> 16)) 513 << num_zeros(CP.getSymbolSize() - COFF::Symbol16Size); 514 if (i->CLRToken) 515 OS << binary_le(i->CLRToken->AuxType) 516 << zeros(i->CLRToken->unused1) 517 << binary_le(i->CLRToken->SymbolTableIndex) 518 << zeros(i->CLRToken->unused2) 519 << num_zeros(CP.getSymbolSize() - COFF::Symbol16Size); 520 } 521 522 // Output string table. 523 if (CP.Obj.Header.PointerToSymbolTable) 524 OS.write(&CP.StringTable[0], CP.StringTable.size()); 525 return true; 526 } 527 528 int yaml2coff(yaml::Input &YIn, raw_ostream &Out) { 529 COFFYAML::Object Doc; 530 YIn >> Doc; 531 if (YIn.error()) { 532 errs() << "yaml2obj: Failed to parse YAML file!\n"; 533 return 1; 534 } 535 536 COFFParser CP(Doc); 537 if (!CP.parse()) { 538 errs() << "yaml2obj: Failed to parse YAML file!\n"; 539 return 1; 540 } 541 542 if (!layoutOptionalHeader(CP)) { 543 errs() << "yaml2obj: Failed to layout optional header for COFF file!\n"; 544 return 1; 545 } 546 if (!layoutCOFF(CP)) { 547 errs() << "yaml2obj: Failed to layout COFF file!\n"; 548 return 1; 549 } 550 if (!writeCOFF(CP, Out)) { 551 errs() << "yaml2obj: Failed to write COFF file!\n"; 552 return 1; 553 } 554 return 0; 555 } 556
