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COFF.h (218893) COFF.h (234353)
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//===----------------------------------------------------------------------===//

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19// http://www.microsoft.com/whdc/system/platform/firmware/pecoff.mspx
20//
21//===----------------------------------------------------------------------===//
22
23#ifndef LLVM_SUPPORT_WIN_COFF_H
24#define LLVM_SUPPORT_WIN_COFF_H
25
26#include "llvm/Support/DataTypes.h"
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//===----------------------------------------------------------------------===//

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19// http://www.microsoft.com/whdc/system/platform/firmware/pecoff.mspx
20//
21//===----------------------------------------------------------------------===//
22
23#ifndef LLVM_SUPPORT_WIN_COFF_H
24#define LLVM_SUPPORT_WIN_COFF_H
25
26#include "llvm/Support/DataTypes.h"
27#include <cassert>
27#include <cstring>
28
29namespace llvm {
30namespace COFF {
31
32 // Sizes in bytes of various things in the COFF format.
33 enum {
34 HeaderSize = 20,

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44 uint32_t TimeDateStamp;
45 uint32_t PointerToSymbolTable;
46 uint32_t NumberOfSymbols;
47 uint16_t SizeOfOptionalHeader;
48 uint16_t Characteristics;
49 };
50
51 enum MachineTypes {
28#include <cstring>
29
30namespace llvm {
31namespace COFF {
32
33 // Sizes in bytes of various things in the COFF format.
34 enum {
35 HeaderSize = 20,

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45 uint32_t TimeDateStamp;
46 uint32_t PointerToSymbolTable;
47 uint32_t NumberOfSymbols;
48 uint16_t SizeOfOptionalHeader;
49 uint16_t Characteristics;
50 };
51
52 enum MachineTypes {
52 IMAGE_FILE_MACHINE_I386 = 0x14C,
53 IMAGE_FILE_MACHINE_AMD64 = 0x8664
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
54 };
55
74 };
75
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
83 /// 0.
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
93 /// and should be 0.
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
110 /// and should be 0.
111 IMAGE_FILE_BYTES_REVERSED_HI = 0x8000
112 };
113
56 struct symbol {
57 char Name[NameSize];
58 uint32_t Value;
59 uint16_t Type;
60 uint8_t StorageClass;
61 uint16_t SectionNumber;
62 uint8_t NumberOfAuxSymbols;
63 };

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226 IMAGE_REL_AMD64_SECREL = 0x000B,
227 IMAGE_REL_AMD64_SECREL7 = 0x000C,
228 IMAGE_REL_AMD64_TOKEN = 0x000D,
229 IMAGE_REL_AMD64_SREL32 = 0x000E,
230 IMAGE_REL_AMD64_PAIR = 0x000F,
231 IMAGE_REL_AMD64_SSPAN32 = 0x0010
232 };
233
114 struct symbol {
115 char Name[NameSize];
116 uint32_t Value;
117 uint16_t Type;
118 uint8_t StorageClass;
119 uint16_t SectionNumber;
120 uint8_t NumberOfAuxSymbols;
121 };

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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
290 };
291
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
308 };
309
234 enum COMDATType {
235 IMAGE_COMDAT_SELECT_NODUPLICATES = 1,
236 IMAGE_COMDAT_SELECT_ANY,
237 IMAGE_COMDAT_SELECT_SAME_SIZE,
238 IMAGE_COMDAT_SELECT_EXACT_MATCH,
239 IMAGE_COMDAT_SELECT_ASSOCIATIVE,
240 IMAGE_COMDAT_SELECT_LARGEST
241 };

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287 union Auxiliary {
288 AuxiliaryFunctionDefinition FunctionDefinition;
289 AuxiliarybfAndefSymbol bfAndefSymbol;
290 AuxiliaryWeakExternal WeakExternal;
291 AuxiliaryFile File;
292 AuxiliarySectionDefinition SectionDefinition;
293 };
294
310 enum COMDATType {
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
317 };

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363 union Auxiliary {
364 AuxiliaryFunctionDefinition FunctionDefinition;
365 AuxiliarybfAndefSymbol bfAndefSymbol;
366 AuxiliaryWeakExternal WeakExternal;
367 AuxiliaryFile File;
368 AuxiliarySectionDefinition SectionDefinition;
369 };
370
295} // End namespace llvm.
371 /// @brief The Import Directory Table.
372 ///
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;
378 uint32_t NameRVA;
379 uint32_t ImportAddressTableRVA;
380 };
381
382 /// @brief The PE32 Import Lookup Table.
383 ///
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.
387 ///
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 {
391 uint32_t data;
392
393 /// @brief Is this entry specified by ordinal, or name?
394 bool isOrdinal() const { return data & 0x80000000; }
395
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;
400 }
401
402 /// @brief Set the ordinal value and set isOrdinal to true.
403 void setOrdinal(uint16_t o) {
404 data = o;
405 data |= 0x80000000;
406 }
407
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!");
411 return data;
412 }
413
414 /// @brief Set the Hint/Name entry RVA and set isOrdinal to false.
415 void setHintNameRVA(uint32_t rva) { data = rva; }
416 };
417
418 /// @brief The DOS compatible header at the front of all PEs.
419 struct DOSHeader {
420 uint16_t Magic;
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;
428 uint16_t InitialSP;
429 uint16_t Checksum;
430 uint16_t InitialIP;
431 uint16_t InitialRelativeCS;
432 uint16_t AddressOfRelocationTable;
433 uint16_t OverlayNumber;
434 uint16_t Reserved[4];
435 uint16_t OEMid;
436 uint16_t OEMinfo;
437 uint16_t Reserved2[10];
438 uint32_t AddressOfNewExeHeader;
439 };
440
441 struct PEHeader {
442 uint32_t Signature;
443 header COFFHeader;
444 uint16_t Magic;
445 uint8_t MajorLinkerVersion;
446 uint8_t MinorLinkerVersion;
447 uint32_t SizeOfCode;
448 uint32_t SizeOfInitializedData;
449 uint32_t SizeOfUninitializedData;
450 uint32_t AddressOfEntryPoint; // RVA
451 uint32_t BaseOfCode; // RVA
452 uint32_t BaseOfData; // RVA
453 uint64_t ImageBase;
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;
465 uint32_t CheckSum;
466 uint16_t Subsystem;
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;
474 };
475
476 struct DataDirectory {
477 uint32_t RelativeVirtualAddress;
478 uint32_t Size;
479 };
480
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
490 /// services.
491 IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER = 12, ///< An EFI driver with run-time
492 /// services.
493 IMAGE_SUBSYSTEM_EFI_ROM = 13, ///< An EFI ROM image.
494 IMAGE_SUBSYSTEM_XBOX = 14 ///< XBOX.
495 };
496
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
513 };
514
515 enum DebugType {
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
527 };
528
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
540 };
541
542 enum ImportType {
543 IMPORT_CODE = 0,
544 IMPORT_DATA = 1,
545 IMPORT_CONST = 2
546 };
547
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.
553 IMPORT_ORDINAL = 0,
554 /// The import name is identical to the public symbol name
555 IMPORT_NAME = 1,
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
562 };
563
564 struct ImportHeader {
565 uint16_t Sig1; ///< Must be IMAGE_FILE_MACHINE_UNKNOWN (0).
566 uint16_t Sig2; ///< Must be 0xFFFF.
567 uint16_t Version;
568 uint16_t Machine;
569 uint32_t TimeDateStamp;
570 uint32_t SizeOfData;
571 uint16_t OrdinalHint;
572 uint16_t TypeInfo;
573
574 ImportType getType() const {
575 return static_cast<ImportType>(TypeInfo & 0x3);
576 }
577
578 ImportNameType getNameType() const {
579 return static_cast<ImportNameType>((TypeInfo & 0x1C) >> 3);
580 }
581 };
582
296} // End namespace COFF.
583} // End namespace COFF.
584} // End namespace llvm.
297
298#endif
585
586#endif