1 //===-- llvm/Support/COFF.h -------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains an definitions used in Windows COFF Files. 11 // 12 // Structures and enums defined within this file where created using 13 // information from Microsoft's publicly available PE/COFF format document: 14 // 15 // Microsoft Portable Executable and Common Object File Format Specification 16 // Revision 8.1 - February 15, 2008 17 // 18 // As of 5/2/2010, hosted by Microsoft at: 19 // http://www.microsoft.com/whdc/system/platform/firmware/pecoff.mspx 20 // 21 //===----------------------------------------------------------------------===// 22 23 #ifndef LLVM_SUPPORT_COFF_H 24 #define LLVM_SUPPORT_COFF_H 25 26 #include "llvm/Support/DataTypes.h" 27 #include <cassert> 28 #include <cstring> 29 30 namespace llvm { 31 namespace COFF { 32 33 // The PE signature bytes that follows the DOS stub header. 34 static const char PEMagic[] = { 'P', 'E', '\0', '\0' }; 35 36 // Sizes in bytes of various things in the COFF format. 37 enum { 38 HeaderSize = 20, 39 NameSize = 8, 40 SymbolSize = 18, 41 SectionSize = 40, 42 RelocationSize = 10 43 }; 44 45 struct header { 46 uint16_t Machine; 47 uint16_t NumberOfSections; 48 uint32_t TimeDateStamp; 49 uint32_t PointerToSymbolTable; 50 uint32_t NumberOfSymbols; 51 uint16_t SizeOfOptionalHeader; 52 uint16_t Characteristics; 53 }; 54 55 enum MachineTypes { 56 MT_Invalid = 0xffff, 57 58 IMAGE_FILE_MACHINE_UNKNOWN = 0x0, 59 IMAGE_FILE_MACHINE_AM33 = 0x13, 60 IMAGE_FILE_MACHINE_AMD64 = 0x8664, 61 IMAGE_FILE_MACHINE_ARM = 0x1C0, 62 IMAGE_FILE_MACHINE_ARMV7 = 0x1C4, 63 IMAGE_FILE_MACHINE_EBC = 0xEBC, 64 IMAGE_FILE_MACHINE_I386 = 0x14C, 65 IMAGE_FILE_MACHINE_IA64 = 0x200, 66 IMAGE_FILE_MACHINE_M32R = 0x9041, 67 IMAGE_FILE_MACHINE_MIPS16 = 0x266, 68 IMAGE_FILE_MACHINE_MIPSFPU = 0x366, 69 IMAGE_FILE_MACHINE_MIPSFPU16 = 0x466, 70 IMAGE_FILE_MACHINE_POWERPC = 0x1F0, 71 IMAGE_FILE_MACHINE_POWERPCFP = 0x1F1, 72 IMAGE_FILE_MACHINE_R4000 = 0x166, 73 IMAGE_FILE_MACHINE_SH3 = 0x1A2, 74 IMAGE_FILE_MACHINE_SH3DSP = 0x1A3, 75 IMAGE_FILE_MACHINE_SH4 = 0x1A6, 76 IMAGE_FILE_MACHINE_SH5 = 0x1A8, 77 IMAGE_FILE_MACHINE_THUMB = 0x1C2, 78 IMAGE_FILE_MACHINE_WCEMIPSV2 = 0x169 79 }; 80 81 enum Characteristics { 82 C_Invalid = 0, 83 84 /// The file does not contain base relocations and must be loaded at its 85 /// preferred base. If this cannot be done, the loader will error. 86 IMAGE_FILE_RELOCS_STRIPPED = 0x0001, 87 /// The file is valid and can be run. 88 IMAGE_FILE_EXECUTABLE_IMAGE = 0x0002, 89 /// COFF line numbers have been stripped. This is deprecated and should be 90 /// 0. 91 IMAGE_FILE_LINE_NUMS_STRIPPED = 0x0004, 92 /// COFF symbol table entries for local symbols have been removed. This is 93 /// deprecated and should be 0. 94 IMAGE_FILE_LOCAL_SYMS_STRIPPED = 0x0008, 95 /// Aggressively trim working set. This is deprecated and must be 0. 96 IMAGE_FILE_AGGRESSIVE_WS_TRIM = 0x0010, 97 /// Image can handle > 2GiB addresses. 98 IMAGE_FILE_LARGE_ADDRESS_AWARE = 0x0020, 99 /// Little endian: the LSB precedes the MSB in memory. This is deprecated 100 /// and should be 0. 101 IMAGE_FILE_BYTES_REVERSED_LO = 0x0080, 102 /// Machine is based on a 32bit word architecture. 103 IMAGE_FILE_32BIT_MACHINE = 0x0100, 104 /// Debugging info has been removed. 105 IMAGE_FILE_DEBUG_STRIPPED = 0x0200, 106 /// If the image is on removable media, fully load it and copy it to swap. 107 IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP = 0x0400, 108 /// If the image is on network media, fully load it and copy it to swap. 109 IMAGE_FILE_NET_RUN_FROM_SWAP = 0x0800, 110 /// The image file is a system file, not a user program. 111 IMAGE_FILE_SYSTEM = 0x1000, 112 /// The image file is a DLL. 113 IMAGE_FILE_DLL = 0x2000, 114 /// This file should only be run on a uniprocessor machine. 115 IMAGE_FILE_UP_SYSTEM_ONLY = 0x4000, 116 /// Big endian: the MSB precedes the LSB in memory. This is deprecated 117 /// and should be 0. 118 IMAGE_FILE_BYTES_REVERSED_HI = 0x8000 119 }; 120 121 struct symbol { 122 char Name[NameSize]; 123 uint32_t Value; 124 uint16_t SectionNumber; 125 uint16_t Type; 126 uint8_t StorageClass; 127 uint8_t NumberOfAuxSymbols; 128 }; 129 130 enum SymbolFlags { 131 SF_TypeMask = 0x0000FFFF, 132 SF_TypeShift = 0, 133 134 SF_ClassMask = 0x00FF0000, 135 SF_ClassShift = 16, 136 137 SF_WeakExternal = 0x01000000 138 }; 139 140 enum SymbolSectionNumber { 141 IMAGE_SYM_DEBUG = -2, 142 IMAGE_SYM_ABSOLUTE = -1, 143 IMAGE_SYM_UNDEFINED = 0 144 }; 145 146 /// Storage class tells where and what the symbol represents 147 enum SymbolStorageClass { 148 SSC_Invalid = 0xff, 149 150 IMAGE_SYM_CLASS_END_OF_FUNCTION = -1, ///< Physical end of function 151 IMAGE_SYM_CLASS_NULL = 0, ///< No symbol 152 IMAGE_SYM_CLASS_AUTOMATIC = 1, ///< Stack variable 153 IMAGE_SYM_CLASS_EXTERNAL = 2, ///< External symbol 154 IMAGE_SYM_CLASS_STATIC = 3, ///< Static 155 IMAGE_SYM_CLASS_REGISTER = 4, ///< Register variable 156 IMAGE_SYM_CLASS_EXTERNAL_DEF = 5, ///< External definition 157 IMAGE_SYM_CLASS_LABEL = 6, ///< Label 158 IMAGE_SYM_CLASS_UNDEFINED_LABEL = 7, ///< Undefined label 159 IMAGE_SYM_CLASS_MEMBER_OF_STRUCT = 8, ///< Member of structure 160 IMAGE_SYM_CLASS_ARGUMENT = 9, ///< Function argument 161 IMAGE_SYM_CLASS_STRUCT_TAG = 10, ///< Structure tag 162 IMAGE_SYM_CLASS_MEMBER_OF_UNION = 11, ///< Member of union 163 IMAGE_SYM_CLASS_UNION_TAG = 12, ///< Union tag 164 IMAGE_SYM_CLASS_TYPE_DEFINITION = 13, ///< Type definition 165 IMAGE_SYM_CLASS_UNDEFINED_STATIC = 14, ///< Undefined static 166 IMAGE_SYM_CLASS_ENUM_TAG = 15, ///< Enumeration tag 167 IMAGE_SYM_CLASS_MEMBER_OF_ENUM = 16, ///< Member of enumeration 168 IMAGE_SYM_CLASS_REGISTER_PARAM = 17, ///< Register parameter 169 IMAGE_SYM_CLASS_BIT_FIELD = 18, ///< Bit field 170 /// ".bb" or ".eb" - beginning or end of block 171 IMAGE_SYM_CLASS_BLOCK = 100, 172 /// ".bf" or ".ef" - beginning or end of function 173 IMAGE_SYM_CLASS_FUNCTION = 101, 174 IMAGE_SYM_CLASS_END_OF_STRUCT = 102, ///< End of structure 175 IMAGE_SYM_CLASS_FILE = 103, ///< File name 176 /// Line number, reformatted as symbol 177 IMAGE_SYM_CLASS_SECTION = 104, 178 IMAGE_SYM_CLASS_WEAK_EXTERNAL = 105, ///< Duplicate tag 179 /// External symbol in dmert public lib 180 IMAGE_SYM_CLASS_CLR_TOKEN = 107 181 }; 182 183 enum SymbolBaseType { 184 IMAGE_SYM_TYPE_NULL = 0, ///< No type information or unknown base type. 185 IMAGE_SYM_TYPE_VOID = 1, ///< Used with void pointers and functions. 186 IMAGE_SYM_TYPE_CHAR = 2, ///< A character (signed byte). 187 IMAGE_SYM_TYPE_SHORT = 3, ///< A 2-byte signed integer. 188 IMAGE_SYM_TYPE_INT = 4, ///< A natural integer type on the target. 189 IMAGE_SYM_TYPE_LONG = 5, ///< A 4-byte signed integer. 190 IMAGE_SYM_TYPE_FLOAT = 6, ///< A 4-byte floating-point number. 191 IMAGE_SYM_TYPE_DOUBLE = 7, ///< An 8-byte floating-point number. 192 IMAGE_SYM_TYPE_STRUCT = 8, ///< A structure. 193 IMAGE_SYM_TYPE_UNION = 9, ///< An union. 194 IMAGE_SYM_TYPE_ENUM = 10, ///< An enumerated type. 195 IMAGE_SYM_TYPE_MOE = 11, ///< A member of enumeration (a specific value). 196 IMAGE_SYM_TYPE_BYTE = 12, ///< A byte; unsigned 1-byte integer. 197 IMAGE_SYM_TYPE_WORD = 13, ///< A word; unsigned 2-byte integer. 198 IMAGE_SYM_TYPE_UINT = 14, ///< An unsigned integer of natural size. 199 IMAGE_SYM_TYPE_DWORD = 15 ///< An unsigned 4-byte integer. 200 }; 201 202 enum SymbolComplexType { 203 IMAGE_SYM_DTYPE_NULL = 0, ///< No complex type; simple scalar variable. 204 IMAGE_SYM_DTYPE_POINTER = 1, ///< A pointer to base type. 205 IMAGE_SYM_DTYPE_FUNCTION = 2, ///< A function that returns a base type. 206 IMAGE_SYM_DTYPE_ARRAY = 3, ///< An array of base type. 207 208 /// Type is formed as (base + (derived << SCT_COMPLEX_TYPE_SHIFT)) 209 SCT_COMPLEX_TYPE_SHIFT = 4 210 }; 211 212 struct section { 213 char Name[NameSize]; 214 uint32_t VirtualSize; 215 uint32_t VirtualAddress; 216 uint32_t SizeOfRawData; 217 uint32_t PointerToRawData; 218 uint32_t PointerToRelocations; 219 uint32_t PointerToLineNumbers; 220 uint16_t NumberOfRelocations; 221 uint16_t NumberOfLineNumbers; 222 uint32_t Characteristics; 223 }; 224 225 enum SectionCharacteristics { 226 SC_Invalid = 0xffffffff, 227 228 IMAGE_SCN_TYPE_NO_PAD = 0x00000008, 229 IMAGE_SCN_CNT_CODE = 0x00000020, 230 IMAGE_SCN_CNT_INITIALIZED_DATA = 0x00000040, 231 IMAGE_SCN_CNT_UNINITIALIZED_DATA = 0x00000080, 232 IMAGE_SCN_LNK_OTHER = 0x00000100, 233 IMAGE_SCN_LNK_INFO = 0x00000200, 234 IMAGE_SCN_LNK_REMOVE = 0x00000800, 235 IMAGE_SCN_LNK_COMDAT = 0x00001000, 236 IMAGE_SCN_GPREL = 0x00008000, 237 IMAGE_SCN_MEM_PURGEABLE = 0x00020000, 238 IMAGE_SCN_MEM_16BIT = 0x00020000, 239 IMAGE_SCN_MEM_LOCKED = 0x00040000, 240 IMAGE_SCN_MEM_PRELOAD = 0x00080000, 241 IMAGE_SCN_ALIGN_1BYTES = 0x00100000, 242 IMAGE_SCN_ALIGN_2BYTES = 0x00200000, 243 IMAGE_SCN_ALIGN_4BYTES = 0x00300000, 244 IMAGE_SCN_ALIGN_8BYTES = 0x00400000, 245 IMAGE_SCN_ALIGN_16BYTES = 0x00500000, 246 IMAGE_SCN_ALIGN_32BYTES = 0x00600000, 247 IMAGE_SCN_ALIGN_64BYTES = 0x00700000, 248 IMAGE_SCN_ALIGN_128BYTES = 0x00800000, 249 IMAGE_SCN_ALIGN_256BYTES = 0x00900000, 250 IMAGE_SCN_ALIGN_512BYTES = 0x00A00000, 251 IMAGE_SCN_ALIGN_1024BYTES = 0x00B00000, 252 IMAGE_SCN_ALIGN_2048BYTES = 0x00C00000, 253 IMAGE_SCN_ALIGN_4096BYTES = 0x00D00000, 254 IMAGE_SCN_ALIGN_8192BYTES = 0x00E00000, 255 IMAGE_SCN_LNK_NRELOC_OVFL = 0x01000000, 256 IMAGE_SCN_MEM_DISCARDABLE = 0x02000000, 257 IMAGE_SCN_MEM_NOT_CACHED = 0x04000000, 258 IMAGE_SCN_MEM_NOT_PAGED = 0x08000000, 259 IMAGE_SCN_MEM_SHARED = 0x10000000, 260 IMAGE_SCN_MEM_EXECUTE = 0x20000000, 261 IMAGE_SCN_MEM_READ = 0x40000000, 262 IMAGE_SCN_MEM_WRITE = 0x80000000 263 }; 264 265 struct relocation { 266 uint32_t VirtualAddress; 267 uint32_t SymbolTableIndex; 268 uint16_t Type; 269 }; 270 271 enum RelocationTypeX86 { 272 IMAGE_REL_I386_ABSOLUTE = 0x0000, 273 IMAGE_REL_I386_DIR16 = 0x0001, 274 IMAGE_REL_I386_REL16 = 0x0002, 275 IMAGE_REL_I386_DIR32 = 0x0006, 276 IMAGE_REL_I386_DIR32NB = 0x0007, 277 IMAGE_REL_I386_SEG12 = 0x0009, 278 IMAGE_REL_I386_SECTION = 0x000A, 279 IMAGE_REL_I386_SECREL = 0x000B, 280 IMAGE_REL_I386_TOKEN = 0x000C, 281 IMAGE_REL_I386_SECREL7 = 0x000D, 282 IMAGE_REL_I386_REL32 = 0x0014, 283 284 IMAGE_REL_AMD64_ABSOLUTE = 0x0000, 285 IMAGE_REL_AMD64_ADDR64 = 0x0001, 286 IMAGE_REL_AMD64_ADDR32 = 0x0002, 287 IMAGE_REL_AMD64_ADDR32NB = 0x0003, 288 IMAGE_REL_AMD64_REL32 = 0x0004, 289 IMAGE_REL_AMD64_REL32_1 = 0x0005, 290 IMAGE_REL_AMD64_REL32_2 = 0x0006, 291 IMAGE_REL_AMD64_REL32_3 = 0x0007, 292 IMAGE_REL_AMD64_REL32_4 = 0x0008, 293 IMAGE_REL_AMD64_REL32_5 = 0x0009, 294 IMAGE_REL_AMD64_SECTION = 0x000A, 295 IMAGE_REL_AMD64_SECREL = 0x000B, 296 IMAGE_REL_AMD64_SECREL7 = 0x000C, 297 IMAGE_REL_AMD64_TOKEN = 0x000D, 298 IMAGE_REL_AMD64_SREL32 = 0x000E, 299 IMAGE_REL_AMD64_PAIR = 0x000F, 300 IMAGE_REL_AMD64_SSPAN32 = 0x0010 301 }; 302 303 enum RelocationTypesARM { 304 IMAGE_REL_ARM_ABSOLUTE = 0x0000, 305 IMAGE_REL_ARM_ADDR32 = 0x0001, 306 IMAGE_REL_ARM_ADDR32NB = 0x0002, 307 IMAGE_REL_ARM_BRANCH24 = 0x0003, 308 IMAGE_REL_ARM_BRANCH11 = 0x0004, 309 IMAGE_REL_ARM_TOKEN = 0x0005, 310 IMAGE_REL_ARM_BLX24 = 0x0008, 311 IMAGE_REL_ARM_BLX11 = 0x0009, 312 IMAGE_REL_ARM_SECTION = 0x000E, 313 IMAGE_REL_ARM_SECREL = 0x000F, 314 IMAGE_REL_ARM_MOV32A = 0x0010, 315 IMAGE_REL_ARM_MOV32T = 0x0011, 316 IMAGE_REL_ARM_BRANCH20T = 0x0012, 317 IMAGE_REL_ARM_BRANCH24T = 0x0014, 318 IMAGE_REL_ARM_BLX23T = 0x0015 319 }; 320 321 enum COMDATType { 322 IMAGE_COMDAT_SELECT_NODUPLICATES = 1, 323 IMAGE_COMDAT_SELECT_ANY, 324 IMAGE_COMDAT_SELECT_SAME_SIZE, 325 IMAGE_COMDAT_SELECT_EXACT_MATCH, 326 IMAGE_COMDAT_SELECT_ASSOCIATIVE, 327 IMAGE_COMDAT_SELECT_LARGEST, 328 IMAGE_COMDAT_SELECT_NEWEST 329 }; 330 331 // Auxiliary Symbol Formats 332 struct AuxiliaryFunctionDefinition { 333 uint32_t TagIndex; 334 uint32_t TotalSize; 335 uint32_t PointerToLinenumber; 336 uint32_t PointerToNextFunction; 337 uint8_t unused[2]; 338 }; 339 340 struct AuxiliarybfAndefSymbol { 341 uint8_t unused1[4]; 342 uint16_t Linenumber; 343 uint8_t unused2[6]; 344 uint32_t PointerToNextFunction; 345 uint8_t unused3[2]; 346 }; 347 348 struct AuxiliaryWeakExternal { 349 uint32_t TagIndex; 350 uint32_t Characteristics; 351 uint8_t unused[10]; 352 }; 353 354 /// These are not documented in the spec, but are located in WinNT.h. 355 enum WeakExternalCharacteristics { 356 IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY = 1, 357 IMAGE_WEAK_EXTERN_SEARCH_LIBRARY = 2, 358 IMAGE_WEAK_EXTERN_SEARCH_ALIAS = 3 359 }; 360 361 struct AuxiliaryFile { 362 uint8_t FileName[18]; 363 }; 364 365 struct AuxiliarySectionDefinition { 366 uint32_t Length; 367 uint16_t NumberOfRelocations; 368 uint16_t NumberOfLinenumbers; 369 uint32_t CheckSum; 370 uint16_t Number; 371 uint8_t Selection; 372 uint8_t unused[3]; 373 }; 374 375 union Auxiliary { 376 AuxiliaryFunctionDefinition FunctionDefinition; 377 AuxiliarybfAndefSymbol bfAndefSymbol; 378 AuxiliaryWeakExternal WeakExternal; 379 AuxiliaryFile File; 380 AuxiliarySectionDefinition SectionDefinition; 381 }; 382 383 /// @brief The Import Directory Table. 384 /// 385 /// There is a single array of these and one entry per imported DLL. 386 struct ImportDirectoryTableEntry { 387 uint32_t ImportLookupTableRVA; 388 uint32_t TimeDateStamp; 389 uint32_t ForwarderChain; 390 uint32_t NameRVA; 391 uint32_t ImportAddressTableRVA; 392 }; 393 394 /// @brief The PE32 Import Lookup Table. 395 /// 396 /// There is an array of these for each imported DLL. It represents either 397 /// the ordinal to import from the target DLL, or a name to lookup and import 398 /// from the target DLL. 399 /// 400 /// This also happens to be the same format used by the Import Address Table 401 /// when it is initially written out to the image. 402 struct ImportLookupTableEntry32 { 403 uint32_t data; 404 405 /// @brief Is this entry specified by ordinal, or name? 406 bool isOrdinal() const { return data & 0x80000000; } 407 408 /// @brief Get the ordinal value of this entry. isOrdinal must be true. 409 uint16_t getOrdinal() const { 410 assert(isOrdinal() && "ILT entry is not an ordinal!"); 411 return data & 0xFFFF; 412 } 413 414 /// @brief Set the ordinal value and set isOrdinal to true. 415 void setOrdinal(uint16_t o) { 416 data = o; 417 data |= 0x80000000; 418 } 419 420 /// @brief Get the Hint/Name entry RVA. isOrdinal must be false. 421 uint32_t getHintNameRVA() const { 422 assert(!isOrdinal() && "ILT entry is not a Hint/Name RVA!"); 423 return data; 424 } 425 426 /// @brief Set the Hint/Name entry RVA and set isOrdinal to false. 427 void setHintNameRVA(uint32_t rva) { data = rva; } 428 }; 429 430 /// @brief The DOS compatible header at the front of all PEs. 431 struct DOSHeader { 432 uint16_t Magic; 433 uint16_t UsedBytesInTheLastPage; 434 uint16_t FileSizeInPages; 435 uint16_t NumberOfRelocationItems; 436 uint16_t HeaderSizeInParagraphs; 437 uint16_t MinimumExtraParagraphs; 438 uint16_t MaximumExtraParagraphs; 439 uint16_t InitialRelativeSS; 440 uint16_t InitialSP; 441 uint16_t Checksum; 442 uint16_t InitialIP; 443 uint16_t InitialRelativeCS; 444 uint16_t AddressOfRelocationTable; 445 uint16_t OverlayNumber; 446 uint16_t Reserved[4]; 447 uint16_t OEMid; 448 uint16_t OEMinfo; 449 uint16_t Reserved2[10]; 450 uint32_t AddressOfNewExeHeader; 451 }; 452 453 struct PEHeader { 454 uint16_t Magic; 455 uint8_t MajorLinkerVersion; 456 uint8_t MinorLinkerVersion; 457 uint32_t SizeOfCode; 458 uint32_t SizeOfInitializedData; 459 uint32_t SizeOfUninitializedData; 460 uint32_t AddressOfEntryPoint; // RVA 461 uint32_t BaseOfCode; // RVA 462 uint32_t BaseOfData; // RVA 463 uint64_t ImageBase; 464 uint32_t SectionAlignment; 465 uint32_t FileAlignment; 466 uint16_t MajorOperatingSystemVersion; 467 uint16_t MinorOperatingSystemVersion; 468 uint16_t MajorImageVersion; 469 uint16_t MinorImageVersion; 470 uint16_t MajorSubsystemVersion; 471 uint16_t MinorSubsystemVersion; 472 uint32_t Win32VersionValue; 473 uint32_t SizeOfImage; 474 uint32_t SizeOfHeaders; 475 uint32_t CheckSum; 476 uint16_t Subsystem; 477 uint16_t DLLCharacteristics; 478 uint64_t SizeOfStackReserve; 479 uint64_t SizeOfStackCommit; 480 uint64_t SizeOfHeapReserve; 481 uint64_t SizeOfHeapCommit; 482 uint32_t LoaderFlags; 483 uint32_t NumberOfRvaAndSize; 484 }; 485 486 struct DataDirectory { 487 uint32_t RelativeVirtualAddress; 488 uint32_t Size; 489 }; 490 491 enum DataDirectoryIndex { 492 EXPORT_TABLE = 0, 493 IMPORT_TABLE, 494 RESOURCE_TABLE, 495 EXCEPTION_TABLE, 496 CERTIFICATE_TABLE, 497 BASE_RELOCATION_TABLE, 498 DEBUG, 499 ARCHITECTURE, 500 GLOBAL_PTR, 501 TLS_TABLE, 502 LOAD_CONFIG_TABLE, 503 BOUND_IMPORT, 504 IAT, 505 DELAY_IMPORT_DESCRIPTOR, 506 CLR_RUNTIME_HEADER 507 }; 508 509 enum WindowsSubsystem { 510 IMAGE_SUBSYSTEM_UNKNOWN = 0, ///< An unknown subsystem. 511 IMAGE_SUBSYSTEM_NATIVE = 1, ///< Device drivers and native Windows processes 512 IMAGE_SUBSYSTEM_WINDOWS_GUI = 2, ///< The Windows GUI subsystem. 513 IMAGE_SUBSYSTEM_WINDOWS_CUI = 3, ///< The Windows character subsystem. 514 IMAGE_SUBSYSTEM_POSIX_CUI = 7, ///< The POSIX character subsystem. 515 IMAGE_SUBSYSTEM_WINDOWS_CE_GUI = 9, ///< Windows CE. 516 IMAGE_SUBSYSTEM_EFI_APPLICATION = 10, ///< An EFI application. 517 IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER = 11, ///< An EFI driver with boot 518 /// services. 519 IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER = 12, ///< An EFI driver with run-time 520 /// services. 521 IMAGE_SUBSYSTEM_EFI_ROM = 13, ///< An EFI ROM image. 522 IMAGE_SUBSYSTEM_XBOX = 14 ///< XBOX. 523 }; 524 525 enum DLLCharacteristics { 526 /// DLL can be relocated at load time. 527 IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE = 0x0040, 528 /// Code integrity checks are enforced. 529 IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY = 0x0080, 530 IMAGE_DLL_CHARACTERISTICS_NX_COMPAT = 0x0100, ///< Image is NX compatible. 531 /// Isolation aware, but do not isolate the image. 532 IMAGE_DLL_CHARACTERISTICS_NO_ISOLATION = 0x0200, 533 /// Does not use structured exception handling (SEH). No SEH handler may be 534 /// called in this image. 535 IMAGE_DLL_CHARACTERISTICS_NO_SEH = 0x0400, 536 /// Do not bind the image. 537 IMAGE_DLL_CHARACTERISTICS_NO_BIND = 0x0800, 538 IMAGE_DLL_CHARACTERISTICS_WDM_DRIVER = 0x2000, ///< A WDM driver. 539 /// Terminal Server aware. 540 IMAGE_DLL_CHARACTERISTICS_TERMINAL_SERVER_AWARE = 0x8000 541 }; 542 543 enum DebugType { 544 IMAGE_DEBUG_TYPE_UNKNOWN = 0, 545 IMAGE_DEBUG_TYPE_COFF = 1, 546 IMAGE_DEBUG_TYPE_CODEVIEW = 2, 547 IMAGE_DEBUG_TYPE_FPO = 3, 548 IMAGE_DEBUG_TYPE_MISC = 4, 549 IMAGE_DEBUG_TYPE_EXCEPTION = 5, 550 IMAGE_DEBUG_TYPE_FIXUP = 6, 551 IMAGE_DEBUG_TYPE_OMAP_TO_SRC = 7, 552 IMAGE_DEBUG_TYPE_OMAP_FROM_SRC = 8, 553 IMAGE_DEBUG_TYPE_BORLAND = 9, 554 IMAGE_DEBUG_TYPE_CLSID = 11 555 }; 556 557 enum BaseRelocationType { 558 IMAGE_REL_BASED_ABSOLUTE = 0, 559 IMAGE_REL_BASED_HIGH = 1, 560 IMAGE_REL_BASED_LOW = 2, 561 IMAGE_REL_BASED_HIGHLOW = 3, 562 IMAGE_REL_BASED_HIGHADJ = 4, 563 IMAGE_REL_BASED_MIPS_JMPADDR = 5, 564 IMAGE_REL_BASED_ARM_MOV32A = 5, 565 IMAGE_REL_BASED_ARM_MOV32T = 7, 566 IMAGE_REL_BASED_MIPS_JMPADDR16 = 9, 567 IMAGE_REL_BASED_DIR64 = 10 568 }; 569 570 enum ImportType { 571 IMPORT_CODE = 0, 572 IMPORT_DATA = 1, 573 IMPORT_CONST = 2 574 }; 575 576 enum ImportNameType { 577 /// Import is by ordinal. This indicates that the value in the Ordinal/Hint 578 /// field of the import header is the import's ordinal. If this constant is 579 /// not specified, then the Ordinal/Hint field should always be interpreted 580 /// as the import's hint. 581 IMPORT_ORDINAL = 0, 582 /// The import name is identical to the public symbol name 583 IMPORT_NAME = 1, 584 /// The import name is the public symbol name, but skipping the leading ?, 585 /// @, or optionally _. 586 IMPORT_NAME_NOPREFIX = 2, 587 /// The import name is the public symbol name, but skipping the leading ?, 588 /// @, or optionally _, and truncating at the first @. 589 IMPORT_NAME_UNDECORATE = 3 590 }; 591 592 struct ImportHeader { 593 uint16_t Sig1; ///< Must be IMAGE_FILE_MACHINE_UNKNOWN (0). 594 uint16_t Sig2; ///< Must be 0xFFFF. 595 uint16_t Version; 596 uint16_t Machine; 597 uint32_t TimeDateStamp; 598 uint32_t SizeOfData; 599 uint16_t OrdinalHint; 600 uint16_t TypeInfo; 601 602 ImportType getType() const { 603 return static_cast<ImportType>(TypeInfo & 0x3); 604 } 605 606 ImportNameType getNameType() const { 607 return static_cast<ImportNameType>((TypeInfo & 0x1C) >> 3); 608 } 609 }; 610 611 } // End namespace COFF. 612 } // End namespace llvm. 613 614 #endif 615
