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