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;
53 IMAGE_FILE_MACHINE_UNKNOWN = 0x0,
54 IMAGE_FILE_MACHINE_AM33 = 0x13,
55 IMAGE_FILE_MACHINE_AMD64 = 0x8664,
56 IMAGE_FILE_MACHINE_ARM = 0x1C0,
57 IMAGE_FILE_MACHINE_ARMV7 = 0x1C4,
58 IMAGE_FILE_MACHINE_EBC = 0xEBC,
59 IMAGE_FILE_MACHINE_I386 = 0x14C,
60 IMAGE_FILE_MACHINE_IA64 = 0x200,
61 IMAGE_FILE_MACHINE_M32R = 0x9041,
62 IMAGE_FILE_MACHINE_MIPS16 = 0x266,
63 IMAGE_FILE_MACHINE_MIPSFPU = 0x366,
64 IMAGE_FILE_MACHINE_MIPSFPU16 = 0x466,
65 IMAGE_FILE_MACHINE_POWERPC = 0x1F0,
66 IMAGE_FILE_MACHINE_POWERPCFP = 0x1F1,
67 IMAGE_FILE_MACHINE_R4000 = 0x166,
68 IMAGE_FILE_MACHINE_SH3 = 0x1A2,
69 IMAGE_FILE_MACHINE_SH3DSP = 0x1A3,
70 IMAGE_FILE_MACHINE_SH4 = 0x1A6,
71 IMAGE_FILE_MACHINE_SH5 = 0x1A8,
72 IMAGE_FILE_MACHINE_THUMB = 0x1C2,
73 IMAGE_FILE_MACHINE_WCEMIPSV2 = 0x169
76 enum Characteristics {
77 /// The file does not contain base relocations and must be loaded at its
78 /// preferred base. If this cannot be done, the loader will error.
79 IMAGE_FILE_RELOCS_STRIPPED = 0x0001,
80 /// The file is valid and can be run.
81 IMAGE_FILE_EXECUTABLE_IMAGE = 0x0002,
82 /// COFF line numbers have been stripped. This is deprecated and should be
84 IMAGE_FILE_LINE_NUMS_STRIPPED = 0x0004,
85 /// COFF symbol table entries for local symbols have been removed. This is
86 /// deprecated and should be 0.
87 IMAGE_FILE_LOCAL_SYMS_STRIPPED = 0x0008,
88 /// Aggressively trim working set. This is deprecated and must be 0.
89 IMAGE_FILE_AGGRESSIVE_WS_TRIM = 0x0010,
90 /// Image can handle > 2GiB addresses.
91 IMAGE_FILE_LARGE_ADDRESS_AWARE = 0x0020,
92 /// Little endian: the LSB precedes the MSB in memory. This is deprecated
94 IMAGE_FILE_BYTES_REVERSED_LO = 0x0080,
95 /// Machine is based on a 32bit word architecture.
96 IMAGE_FILE_32BIT_MACHINE = 0x0100,
97 /// Debugging info has been removed.
98 IMAGE_FILE_DEBUG_STRIPPED = 0x0200,
99 /// If the image is on removable media, fully load it and copy it to swap.
100 IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP = 0x0400,
101 /// If the image is on network media, fully load it and copy it to swap.
102 IMAGE_FILE_NET_RUN_FROM_SWAP = 0x0800,
103 /// The image file is a system file, not a user program.
104 IMAGE_FILE_SYSTEM = 0x1000,
105 /// The image file is a DLL.
106 IMAGE_FILE_DLL = 0x2000,
107 /// This file should only be run on a uniprocessor machine.
108 IMAGE_FILE_UP_SYSTEM_ONLY = 0x4000,
109 /// Big endian: the MSB precedes the LSB in memory. This is deprecated
111 IMAGE_FILE_BYTES_REVERSED_HI = 0x8000
117 uint16_t SectionNumber;
119 uint8_t StorageClass;
120 uint8_t NumberOfAuxSymbols;
124 SF_TypeMask = 0x0000FFFF,
127 SF_ClassMask = 0x00FF0000,
130 SF_WeakExternal = 0x01000000
133 enum SymbolSectionNumber {
134 IMAGE_SYM_DEBUG = -2,
135 IMAGE_SYM_ABSOLUTE = -1,
136 IMAGE_SYM_UNDEFINED = 0
139 /// Storage class tells where and what the symbol represents
140 enum SymbolStorageClass {
141 IMAGE_SYM_CLASS_END_OF_FUNCTION = -1, ///< Physical end of function
142 IMAGE_SYM_CLASS_NULL = 0, ///< No symbol
143 IMAGE_SYM_CLASS_AUTOMATIC = 1, ///< Stack variable
144 IMAGE_SYM_CLASS_EXTERNAL = 2, ///< External symbol
145 IMAGE_SYM_CLASS_STATIC = 3, ///< Static
146 IMAGE_SYM_CLASS_REGISTER = 4, ///< Register variable
147 IMAGE_SYM_CLASS_EXTERNAL_DEF = 5, ///< External definition
148 IMAGE_SYM_CLASS_LABEL = 6, ///< Label
149 IMAGE_SYM_CLASS_UNDEFINED_LABEL = 7, ///< Undefined label
150 IMAGE_SYM_CLASS_MEMBER_OF_STRUCT = 8, ///< Member of structure
151 IMAGE_SYM_CLASS_ARGUMENT = 9, ///< Function argument
152 IMAGE_SYM_CLASS_STRUCT_TAG = 10, ///< Structure tag
153 IMAGE_SYM_CLASS_MEMBER_OF_UNION = 11, ///< Member of union
154 IMAGE_SYM_CLASS_UNION_TAG = 12, ///< Union tag
155 IMAGE_SYM_CLASS_TYPE_DEFINITION = 13, ///< Type definition
156 IMAGE_SYM_CLASS_UNDEFINED_STATIC = 14, ///< Undefined static
157 IMAGE_SYM_CLASS_ENUM_TAG = 15, ///< Enumeration tag
158 IMAGE_SYM_CLASS_MEMBER_OF_ENUM = 16, ///< Member of enumeration
159 IMAGE_SYM_CLASS_REGISTER_PARAM = 17, ///< Register parameter
160 IMAGE_SYM_CLASS_BIT_FIELD = 18, ///< Bit field
161 /// ".bb" or ".eb" - beginning or end of block
162 IMAGE_SYM_CLASS_BLOCK = 100,
163 /// ".bf" or ".ef" - beginning or end of function
164 IMAGE_SYM_CLASS_FUNCTION = 101,
165 IMAGE_SYM_CLASS_END_OF_STRUCT = 102, ///< End of structure
166 IMAGE_SYM_CLASS_FILE = 103, ///< File name
167 /// Line number, reformatted as symbol
168 IMAGE_SYM_CLASS_SECTION = 104,
169 IMAGE_SYM_CLASS_WEAK_EXTERNAL = 105, ///< Duplicate tag
170 /// External symbol in dmert public lib
171 IMAGE_SYM_CLASS_CLR_TOKEN = 107
174 enum SymbolBaseType {
175 IMAGE_SYM_TYPE_NULL = 0, ///< No type information or unknown base type.
176 IMAGE_SYM_TYPE_VOID = 1, ///< Used with void pointers and functions.
177 IMAGE_SYM_TYPE_CHAR = 2, ///< A character (signed byte).
178 IMAGE_SYM_TYPE_SHORT = 3, ///< A 2-byte signed integer.
179 IMAGE_SYM_TYPE_INT = 4, ///< A natural integer type on the target.
180 IMAGE_SYM_TYPE_LONG = 5, ///< A 4-byte signed integer.
181 IMAGE_SYM_TYPE_FLOAT = 6, ///< A 4-byte floating-point number.
182 IMAGE_SYM_TYPE_DOUBLE = 7, ///< An 8-byte floating-point number.
183 IMAGE_SYM_TYPE_STRUCT = 8, ///< A structure.
184 IMAGE_SYM_TYPE_UNION = 9, ///< An union.
185 IMAGE_SYM_TYPE_ENUM = 10, ///< An enumerated type.
186 IMAGE_SYM_TYPE_MOE = 11, ///< A member of enumeration (a specific value).
187 IMAGE_SYM_TYPE_BYTE = 12, ///< A byte; unsigned 1-byte integer.
188 IMAGE_SYM_TYPE_WORD = 13, ///< A word; unsigned 2-byte integer.
189 IMAGE_SYM_TYPE_UINT = 14, ///< An unsigned integer of natural size.
190 IMAGE_SYM_TYPE_DWORD = 15 ///< An unsigned 4-byte integer.
193 enum SymbolComplexType {
194 IMAGE_SYM_DTYPE_NULL = 0, ///< No complex type; simple scalar variable.
195 IMAGE_SYM_DTYPE_POINTER = 1, ///< A pointer to base type.
196 IMAGE_SYM_DTYPE_FUNCTION = 2, ///< A function that returns a base type.
197 IMAGE_SYM_DTYPE_ARRAY = 3, ///< An array of base type.
199 /// Type is formed as (base + (derived << SCT_COMPLEX_TYPE_SHIFT))
200 SCT_COMPLEX_TYPE_SHIFT = 4
205 uint32_t VirtualSize;
206 uint32_t VirtualAddress;
207 uint32_t SizeOfRawData;
208 uint32_t PointerToRawData;
209 uint32_t PointerToRelocations;
210 uint32_t PointerToLineNumbers;
211 uint16_t NumberOfRelocations;
212 uint16_t NumberOfLineNumbers;
213 uint32_t Characteristics;
216 enum SectionCharacteristics {
217 IMAGE_SCN_TYPE_NO_PAD = 0x00000008,
218 IMAGE_SCN_CNT_CODE = 0x00000020,
219 IMAGE_SCN_CNT_INITIALIZED_DATA = 0x00000040,
220 IMAGE_SCN_CNT_UNINITIALIZED_DATA = 0x00000080,
221 IMAGE_SCN_LNK_OTHER = 0x00000100,
222 IMAGE_SCN_LNK_INFO = 0x00000200,
223 IMAGE_SCN_LNK_REMOVE = 0x00000800,
224 IMAGE_SCN_LNK_COMDAT = 0x00001000,
225 IMAGE_SCN_GPREL = 0x00008000,
226 IMAGE_SCN_MEM_PURGEABLE = 0x00020000,
227 IMAGE_SCN_MEM_16BIT = 0x00020000,
228 IMAGE_SCN_MEM_LOCKED = 0x00040000,
229 IMAGE_SCN_MEM_PRELOAD = 0x00080000,
230 IMAGE_SCN_ALIGN_1BYTES = 0x00100000,
231 IMAGE_SCN_ALIGN_2BYTES = 0x00200000,
232 IMAGE_SCN_ALIGN_4BYTES = 0x00300000,
233 IMAGE_SCN_ALIGN_8BYTES = 0x00400000,
234 IMAGE_SCN_ALIGN_16BYTES = 0x00500000,
235 IMAGE_SCN_ALIGN_32BYTES = 0x00600000,
236 IMAGE_SCN_ALIGN_64BYTES = 0x00700000,
237 IMAGE_SCN_ALIGN_128BYTES = 0x00800000,
238 IMAGE_SCN_ALIGN_256BYTES = 0x00900000,
239 IMAGE_SCN_ALIGN_512BYTES = 0x00A00000,
240 IMAGE_SCN_ALIGN_1024BYTES = 0x00B00000,
241 IMAGE_SCN_ALIGN_2048BYTES = 0x00C00000,
242 IMAGE_SCN_ALIGN_4096BYTES = 0x00D00000,
243 IMAGE_SCN_ALIGN_8192BYTES = 0x00E00000,
244 IMAGE_SCN_LNK_NRELOC_OVFL = 0x01000000,
245 IMAGE_SCN_MEM_DISCARDABLE = 0x02000000,
246 IMAGE_SCN_MEM_NOT_CACHED = 0x04000000,
247 IMAGE_SCN_MEM_NOT_PAGED = 0x08000000,
248 IMAGE_SCN_MEM_SHARED = 0x10000000,
249 IMAGE_SCN_MEM_EXECUTE = 0x20000000,
250 IMAGE_SCN_MEM_READ = 0x40000000,
251 IMAGE_SCN_MEM_WRITE = 0x80000000
255 uint32_t VirtualAddress;
256 uint32_t SymbolTableIndex;
260 enum RelocationTypeX86 {
261 IMAGE_REL_I386_ABSOLUTE = 0x0000,
262 IMAGE_REL_I386_DIR16 = 0x0001,
263 IMAGE_REL_I386_REL16 = 0x0002,
264 IMAGE_REL_I386_DIR32 = 0x0006,
265 IMAGE_REL_I386_DIR32NB = 0x0007,
266 IMAGE_REL_I386_SEG12 = 0x0009,
267 IMAGE_REL_I386_SECTION = 0x000A,
268 IMAGE_REL_I386_SECREL = 0x000B,
269 IMAGE_REL_I386_TOKEN = 0x000C,
270 IMAGE_REL_I386_SECREL7 = 0x000D,
271 IMAGE_REL_I386_REL32 = 0x0014,
273 IMAGE_REL_AMD64_ABSOLUTE = 0x0000,
274 IMAGE_REL_AMD64_ADDR64 = 0x0001,
275 IMAGE_REL_AMD64_ADDR32 = 0x0002,
276 IMAGE_REL_AMD64_ADDR32NB = 0x0003,
277 IMAGE_REL_AMD64_REL32 = 0x0004,
278 IMAGE_REL_AMD64_REL32_1 = 0x0005,
279 IMAGE_REL_AMD64_REL32_2 = 0x0006,
280 IMAGE_REL_AMD64_REL32_3 = 0x0007,
281 IMAGE_REL_AMD64_REL32_4 = 0x0008,
282 IMAGE_REL_AMD64_REL32_5 = 0x0009,
283 IMAGE_REL_AMD64_SECTION = 0x000A,
284 IMAGE_REL_AMD64_SECREL = 0x000B,
285 IMAGE_REL_AMD64_SECREL7 = 0x000C,
286 IMAGE_REL_AMD64_TOKEN = 0x000D,
287 IMAGE_REL_AMD64_SREL32 = 0x000E,
288 IMAGE_REL_AMD64_PAIR = 0x000F,
289 IMAGE_REL_AMD64_SSPAN32 = 0x0010
292 enum RelocationTypesARM {
293 IMAGE_REL_ARM_ABSOLUTE = 0x0000,
294 IMAGE_REL_ARM_ADDR32 = 0x0001,
295 IMAGE_REL_ARM_ADDR32NB = 0x0002,
296 IMAGE_REL_ARM_BRANCH24 = 0x0003,
297 IMAGE_REL_ARM_BRANCH11 = 0x0004,
298 IMAGE_REL_ARM_TOKEN = 0x0005,
299 IMAGE_REL_ARM_BLX24 = 0x0008,
300 IMAGE_REL_ARM_BLX11 = 0x0009,
301 IMAGE_REL_ARM_SECTION = 0x000E,
302 IMAGE_REL_ARM_SECREL = 0x000F,
303 IMAGE_REL_ARM_MOV32A = 0x0010,
304 IMAGE_REL_ARM_MOV32T = 0x0011,
305 IMAGE_REL_ARM_BRANCH20T = 0x0012,
306 IMAGE_REL_ARM_BRANCH24T = 0x0014,
307 IMAGE_REL_ARM_BLX23T = 0x0015
311 IMAGE_COMDAT_SELECT_NODUPLICATES = 1,
312 IMAGE_COMDAT_SELECT_ANY,
313 IMAGE_COMDAT_SELECT_SAME_SIZE,
314 IMAGE_COMDAT_SELECT_EXACT_MATCH,
315 IMAGE_COMDAT_SELECT_ASSOCIATIVE,
316 IMAGE_COMDAT_SELECT_LARGEST
319 // Auxiliary Symbol Formats
320 struct AuxiliaryFunctionDefinition {
323 uint32_t PointerToLinenumber;
324 uint32_t PointerToNextFunction;
328 struct AuxiliarybfAndefSymbol {
332 uint32_t PointerToNextFunction;
336 struct AuxiliaryWeakExternal {
338 uint32_t Characteristics;
342 /// These are not documented in the spec, but are located in WinNT.h.
343 enum WeakExternalCharacteristics {
344 IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY = 1,
345 IMAGE_WEAK_EXTERN_SEARCH_LIBRARY = 2,
346 IMAGE_WEAK_EXTERN_SEARCH_ALIAS = 3
349 struct AuxiliaryFile {
350 uint8_t FileName[18];
353 struct AuxiliarySectionDefinition {
355 uint16_t NumberOfRelocations;
356 uint16_t NumberOfLinenumbers;
364 AuxiliaryFunctionDefinition FunctionDefinition;
365 AuxiliarybfAndefSymbol bfAndefSymbol;
366 AuxiliaryWeakExternal WeakExternal;
368 AuxiliarySectionDefinition SectionDefinition;
371 /// @brief The Import Directory Table.
373 /// There is a single array of these and one entry per imported DLL.
374 struct ImportDirectoryTableEntry {
375 uint32_t ImportLookupTableRVA;
376 uint32_t TimeDateStamp;
377 uint32_t ForwarderChain;
379 uint32_t ImportAddressTableRVA;
382 /// @brief The PE32 Import Lookup Table.
384 /// There is an array of these for each imported DLL. It represents either
385 /// the ordinal to import from the target DLL, or a name to lookup and import
386 /// from the target DLL.
388 /// This also happens to be the same format used by the Import Address Table
389 /// when it is initially written out to the image.
390 struct ImportLookupTableEntry32 {
393 /// @brief Is this entry specified by ordinal, or name?
394 bool isOrdinal() const { return data & 0x80000000; }
396 /// @brief Get the ordinal value of this entry. isOrdinal must be true.
397 uint16_t getOrdinal() const {
398 assert(isOrdinal() && "ILT entry is not an ordinal!");
399 return data & 0xFFFF;
402 /// @brief Set the ordinal value and set isOrdinal to true.
403 void setOrdinal(uint16_t o) {
408 /// @brief Get the Hint/Name entry RVA. isOrdinal must be false.
409 uint32_t getHintNameRVA() const {
410 assert(!isOrdinal() && "ILT entry is not a Hint/Name RVA!");
414 /// @brief Set the Hint/Name entry RVA and set isOrdinal to false.
415 void setHintNameRVA(uint32_t rva) { data = rva; }
418 /// @brief The DOS compatible header at the front of all PEs.
421 uint16_t UsedBytesInTheLastPage;
422 uint16_t FileSizeInPages;
423 uint16_t NumberOfRelocationItems;
424 uint16_t HeaderSizeInParagraphs;
425 uint16_t MinimumExtraParagraphs;
426 uint16_t MaximumExtraParagraphs;
427 uint16_t InitialRelativeSS;
431 uint16_t InitialRelativeCS;
432 uint16_t AddressOfRelocationTable;
433 uint16_t OverlayNumber;
434 uint16_t Reserved[4];
437 uint16_t Reserved2[10];
438 uint32_t AddressOfNewExeHeader;
445 uint8_t MajorLinkerVersion;
446 uint8_t MinorLinkerVersion;
448 uint32_t SizeOfInitializedData;
449 uint32_t SizeOfUninitializedData;
450 uint32_t AddressOfEntryPoint; // RVA
451 uint32_t BaseOfCode; // RVA
452 uint32_t BaseOfData; // RVA
454 uint32_t SectionAlignment;
455 uint32_t FileAlignment;
456 uint16_t MajorOperatingSystemVersion;
457 uint16_t MinorOperatingSystemVersion;
458 uint16_t MajorImageVersion;
459 uint16_t MinorImageVersion;
460 uint16_t MajorSubsystemVersion;
461 uint16_t MinorSubsystemVersion;
462 uint32_t Win32VersionValue;
463 uint32_t SizeOfImage;
464 uint32_t SizeOfHeaders;
467 uint16_t DLLCharacteristics;
468 uint64_t SizeOfStackReserve;
469 uint64_t SizeOfStackCommit;
470 uint64_t SizeOfHeapReserve;
471 uint64_t SizeOfHeapCommit;
472 uint32_t LoaderFlags;
473 uint32_t NumberOfRvaAndSize;
476 struct DataDirectory {
477 uint32_t RelativeVirtualAddress;
481 enum WindowsSubsystem {
482 IMAGE_SUBSYSTEM_UNKNOWN = 0, ///< An unknown subsystem.
483 IMAGE_SUBSYSTEM_NATIVE = 1, ///< Device drivers and native Windows processes
484 IMAGE_SUBSYSTEM_WINDOWS_GUI = 2, ///< The Windows GUI subsystem.
485 IMAGE_SUBSYSTEM_WINDOWS_CUI = 3, ///< The Windows character subsystem.
486 IMAGE_SUBSYSTEM_POSIX_CUI = 7, ///< The POSIX character subsystem.
487 IMAGE_SUBSYSTEM_WINDOWS_CE_GUI = 9, ///< Windows CE.
488 IMAGE_SUBSYSTEM_EFI_APPLICATION = 10, ///< An EFI application.
489 IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER = 11, ///< An EFI driver with boot
491 IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER = 12, ///< An EFI driver with run-time
493 IMAGE_SUBSYSTEM_EFI_ROM = 13, ///< An EFI ROM image.
494 IMAGE_SUBSYSTEM_XBOX = 14 ///< XBOX.
497 enum DLLCharacteristics {
498 /// DLL can be relocated at load time.
499 IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE = 0x0040,
500 /// Code integrity checks are enforced.
501 IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY = 0x0080,
502 IMAGE_DLL_CHARACTERISTICS_NX_COMPAT = 0x0100, ///< Image is NX compatible.
503 /// Isolation aware, but do not isolate the image.
504 IMAGE_DLL_CHARACTERISTICS_NO_ISOLATION = 0x0200,
505 /// Does not use structured exception handling (SEH). No SEH handler may be
506 /// called in this image.
507 IMAGE_DLL_CHARACTERISTICS_NO_SEH = 0x0400,
508 /// Do not bind the image.
509 IMAGE_DLL_CHARACTERISTICS_NO_BIND = 0x0800,
510 IMAGE_DLL_CHARACTERISTICS_WDM_DRIVER = 0x2000, ///< A WDM driver.
511 /// Terminal Server aware.
512 IMAGE_DLL_CHARACTERISTICS_TERMINAL_SERVER_AWARE = 0x8000
516 IMAGE_DEBUG_TYPE_UNKNOWN = 0,
517 IMAGE_DEBUG_TYPE_COFF = 1,
518 IMAGE_DEBUG_TYPE_CODEVIEW = 2,
519 IMAGE_DEBUG_TYPE_FPO = 3,
520 IMAGE_DEBUG_TYPE_MISC = 4,
521 IMAGE_DEBUG_TYPE_EXCEPTION = 5,
522 IMAGE_DEBUG_TYPE_FIXUP = 6,
523 IMAGE_DEBUG_TYPE_OMAP_TO_SRC = 7,
524 IMAGE_DEBUG_TYPE_OMAP_FROM_SRC = 8,
525 IMAGE_DEBUG_TYPE_BORLAND = 9,
526 IMAGE_DEBUG_TYPE_CLSID = 11
529 enum BaseRelocationType {
530 IMAGE_REL_BASED_ABSOLUTE = 0,
531 IMAGE_REL_BASED_HIGH = 1,
532 IMAGE_REL_BASED_LOW = 2,
533 IMAGE_REL_BASED_HIGHLOW = 3,
534 IMAGE_REL_BASED_HIGHADJ = 4,
535 IMAGE_REL_BASED_MIPS_JMPADDR = 5,
536 IMAGE_REL_BASED_ARM_MOV32A = 5,
537 IMAGE_REL_BASED_ARM_MOV32T = 7,
538 IMAGE_REL_BASED_MIPS_JMPADDR16 = 9,
539 IMAGE_REL_BASED_DIR64 = 10
548 enum ImportNameType {
549 /// Import is by ordinal. This indicates that the value in the Ordinal/Hint
550 /// field of the import header is the import's ordinal. If this constant is
551 /// not specified, then the Ordinal/Hint field should always be interpreted
552 /// as the import's hint.
554 /// The import name is identical to the public symbol name
556 /// The import name is the public symbol name, but skipping the leading ?,
557 /// @, or optionally _.
558 IMPORT_NAME_NOPREFIX = 2,
559 /// The import name is the public symbol name, but skipping the leading ?,
560 /// @, or optionally _, and truncating at the first @.
561 IMPORT_NAME_UNDECORATE = 3
564 struct ImportHeader {
565 uint16_t Sig1; ///< Must be IMAGE_FILE_MACHINE_UNKNOWN (0).
566 uint16_t Sig2; ///< Must be 0xFFFF.
569 uint32_t TimeDateStamp;
571 uint16_t OrdinalHint;
574 ImportType getType() const {
575 return static_cast<ImportType>(TypeInfo & 0x3);
578 ImportNameType getNameType() const {
579 return static_cast<ImportNameType>((TypeInfo & 0x1C) >> 3);
583 } // End namespace COFF.
584 } // End namespace llvm.