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299 lines
10 KiB
C++
299 lines
10 KiB
C++
//===-- llvm/Support/COFF.h -------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains an definitions used in Windows COFF Files.
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//
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// Structures and enums defined within this file where created using
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// information from Microsoft's publicly available PE/COFF format document:
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//
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// Microsoft Portable Executable and Common Object File Format Specification
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// Revision 8.1 - February 15, 2008
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//
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// As of 5/2/2010, hosted by Microsoft at:
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// http://www.microsoft.com/whdc/system/platform/firmware/pecoff.mspx
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_WIN_COFF_H
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#define LLVM_SUPPORT_WIN_COFF_H
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#include "llvm/Support/DataTypes.h"
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#include <cstring>
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namespace llvm {
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namespace COFF {
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// Sizes in bytes of various things in the COFF format.
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enum {
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HeaderSize = 20,
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NameSize = 8,
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SymbolSize = 18,
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SectionSize = 40,
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RelocationSize = 10
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};
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struct header {
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uint16_t Machine;
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uint16_t NumberOfSections;
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uint32_t TimeDateStamp;
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uint32_t PointerToSymbolTable;
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uint32_t NumberOfSymbols;
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uint16_t SizeOfOptionalHeader;
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uint16_t Characteristics;
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};
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enum MachineTypes {
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IMAGE_FILE_MACHINE_I386 = 0x14C,
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IMAGE_FILE_MACHINE_AMD64 = 0x8664
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};
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struct symbol {
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char Name[NameSize];
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uint32_t Value;
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uint16_t Type;
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uint8_t StorageClass;
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uint16_t SectionNumber;
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uint8_t NumberOfAuxSymbols;
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};
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enum SymbolFlags {
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SF_TypeMask = 0x0000FFFF,
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SF_TypeShift = 0,
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SF_ClassMask = 0x00FF0000,
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SF_ClassShift = 16,
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SF_WeakExternal = 0x01000000
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};
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enum SymbolSectionNumber {
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IMAGE_SYM_DEBUG = -2,
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IMAGE_SYM_ABSOLUTE = -1,
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IMAGE_SYM_UNDEFINED = 0
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};
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/// Storage class tells where and what the symbol represents
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enum SymbolStorageClass {
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IMAGE_SYM_CLASS_END_OF_FUNCTION = -1, ///< Physical end of function
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IMAGE_SYM_CLASS_NULL = 0, ///< No symbol
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IMAGE_SYM_CLASS_AUTOMATIC = 1, ///< Stack variable
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IMAGE_SYM_CLASS_EXTERNAL = 2, ///< External symbol
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IMAGE_SYM_CLASS_STATIC = 3, ///< Static
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IMAGE_SYM_CLASS_REGISTER = 4, ///< Register variable
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IMAGE_SYM_CLASS_EXTERNAL_DEF = 5, ///< External definition
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IMAGE_SYM_CLASS_LABEL = 6, ///< Label
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IMAGE_SYM_CLASS_UNDEFINED_LABEL = 7, ///< Undefined label
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IMAGE_SYM_CLASS_MEMBER_OF_STRUCT = 8, ///< Member of structure
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IMAGE_SYM_CLASS_ARGUMENT = 9, ///< Function argument
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IMAGE_SYM_CLASS_STRUCT_TAG = 10, ///< Structure tag
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IMAGE_SYM_CLASS_MEMBER_OF_UNION = 11, ///< Member of union
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IMAGE_SYM_CLASS_UNION_TAG = 12, ///< Union tag
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IMAGE_SYM_CLASS_TYPE_DEFINITION = 13, ///< Type definition
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IMAGE_SYM_CLASS_UNDEFINED_STATIC = 14, ///< Undefined static
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IMAGE_SYM_CLASS_ENUM_TAG = 15, ///< Enumeration tag
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IMAGE_SYM_CLASS_MEMBER_OF_ENUM = 16, ///< Member of enumeration
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IMAGE_SYM_CLASS_REGISTER_PARAM = 17, ///< Register parameter
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IMAGE_SYM_CLASS_BIT_FIELD = 18, ///< Bit field
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/// ".bb" or ".eb" - beginning or end of block
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IMAGE_SYM_CLASS_BLOCK = 100,
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/// ".bf" or ".ef" - beginning or end of function
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IMAGE_SYM_CLASS_FUNCTION = 101,
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IMAGE_SYM_CLASS_END_OF_STRUCT = 102, ///< End of structure
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IMAGE_SYM_CLASS_FILE = 103, ///< File name
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/// Line number, reformatted as symbol
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IMAGE_SYM_CLASS_SECTION = 104,
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IMAGE_SYM_CLASS_WEAK_EXTERNAL = 105, ///< Duplicate tag
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/// External symbol in dmert public lib
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IMAGE_SYM_CLASS_CLR_TOKEN = 107
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};
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enum SymbolBaseType {
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IMAGE_SYM_TYPE_NULL = 0, ///< No type information or unknown base type.
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IMAGE_SYM_TYPE_VOID = 1, ///< Used with void pointers and functions.
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IMAGE_SYM_TYPE_CHAR = 2, ///< A character (signed byte).
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IMAGE_SYM_TYPE_SHORT = 3, ///< A 2-byte signed integer.
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IMAGE_SYM_TYPE_INT = 4, ///< A natural integer type on the target.
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IMAGE_SYM_TYPE_LONG = 5, ///< A 4-byte signed integer.
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IMAGE_SYM_TYPE_FLOAT = 6, ///< A 4-byte floating-point number.
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IMAGE_SYM_TYPE_DOUBLE = 7, ///< An 8-byte floating-point number.
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IMAGE_SYM_TYPE_STRUCT = 8, ///< A structure.
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IMAGE_SYM_TYPE_UNION = 9, ///< An union.
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IMAGE_SYM_TYPE_ENUM = 10, ///< An enumerated type.
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IMAGE_SYM_TYPE_MOE = 11, ///< A member of enumeration (a specific value).
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IMAGE_SYM_TYPE_BYTE = 12, ///< A byte; unsigned 1-byte integer.
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IMAGE_SYM_TYPE_WORD = 13, ///< A word; unsigned 2-byte integer.
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IMAGE_SYM_TYPE_UINT = 14, ///< An unsigned integer of natural size.
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IMAGE_SYM_TYPE_DWORD = 15 ///< An unsigned 4-byte integer.
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};
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enum SymbolComplexType {
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IMAGE_SYM_DTYPE_NULL = 0, ///< No complex type; simple scalar variable.
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IMAGE_SYM_DTYPE_POINTER = 1, ///< A pointer to base type.
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IMAGE_SYM_DTYPE_FUNCTION = 2, ///< A function that returns a base type.
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IMAGE_SYM_DTYPE_ARRAY = 3, ///< An array of base type.
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/// Type is formed as (base + (derived << SCT_COMPLEX_TYPE_SHIFT))
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SCT_COMPLEX_TYPE_SHIFT = 4
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};
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struct section {
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char Name[NameSize];
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uint32_t VirtualSize;
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uint32_t VirtualAddress;
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uint32_t SizeOfRawData;
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uint32_t PointerToRawData;
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uint32_t PointerToRelocations;
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uint32_t PointerToLineNumbers;
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uint16_t NumberOfRelocations;
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uint16_t NumberOfLineNumbers;
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uint32_t Characteristics;
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};
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enum SectionCharacteristics {
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IMAGE_SCN_TYPE_NO_PAD = 0x00000008,
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IMAGE_SCN_CNT_CODE = 0x00000020,
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IMAGE_SCN_CNT_INITIALIZED_DATA = 0x00000040,
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IMAGE_SCN_CNT_UNINITIALIZED_DATA = 0x00000080,
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IMAGE_SCN_LNK_OTHER = 0x00000100,
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IMAGE_SCN_LNK_INFO = 0x00000200,
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IMAGE_SCN_LNK_REMOVE = 0x00000800,
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IMAGE_SCN_LNK_COMDAT = 0x00001000,
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IMAGE_SCN_GPREL = 0x00008000,
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IMAGE_SCN_MEM_PURGEABLE = 0x00020000,
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IMAGE_SCN_MEM_16BIT = 0x00020000,
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IMAGE_SCN_MEM_LOCKED = 0x00040000,
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IMAGE_SCN_MEM_PRELOAD = 0x00080000,
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IMAGE_SCN_ALIGN_1BYTES = 0x00100000,
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IMAGE_SCN_ALIGN_2BYTES = 0x00200000,
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IMAGE_SCN_ALIGN_4BYTES = 0x00300000,
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IMAGE_SCN_ALIGN_8BYTES = 0x00400000,
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IMAGE_SCN_ALIGN_16BYTES = 0x00500000,
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IMAGE_SCN_ALIGN_32BYTES = 0x00600000,
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IMAGE_SCN_ALIGN_64BYTES = 0x00700000,
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IMAGE_SCN_ALIGN_128BYTES = 0x00800000,
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IMAGE_SCN_ALIGN_256BYTES = 0x00900000,
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IMAGE_SCN_ALIGN_512BYTES = 0x00A00000,
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IMAGE_SCN_ALIGN_1024BYTES = 0x00B00000,
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IMAGE_SCN_ALIGN_2048BYTES = 0x00C00000,
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IMAGE_SCN_ALIGN_4096BYTES = 0x00D00000,
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IMAGE_SCN_ALIGN_8192BYTES = 0x00E00000,
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IMAGE_SCN_LNK_NRELOC_OVFL = 0x01000000,
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IMAGE_SCN_MEM_DISCARDABLE = 0x02000000,
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IMAGE_SCN_MEM_NOT_CACHED = 0x04000000,
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IMAGE_SCN_MEM_NOT_PAGED = 0x08000000,
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IMAGE_SCN_MEM_SHARED = 0x10000000,
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IMAGE_SCN_MEM_EXECUTE = 0x20000000,
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IMAGE_SCN_MEM_READ = 0x40000000,
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IMAGE_SCN_MEM_WRITE = 0x80000000
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};
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struct relocation {
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uint32_t VirtualAddress;
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uint32_t SymbolTableIndex;
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uint16_t Type;
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};
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enum RelocationTypeX86 {
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IMAGE_REL_I386_ABSOLUTE = 0x0000,
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IMAGE_REL_I386_DIR16 = 0x0001,
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IMAGE_REL_I386_REL16 = 0x0002,
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IMAGE_REL_I386_DIR32 = 0x0006,
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IMAGE_REL_I386_DIR32NB = 0x0007,
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IMAGE_REL_I386_SEG12 = 0x0009,
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IMAGE_REL_I386_SECTION = 0x000A,
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IMAGE_REL_I386_SECREL = 0x000B,
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IMAGE_REL_I386_TOKEN = 0x000C,
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IMAGE_REL_I386_SECREL7 = 0x000D,
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IMAGE_REL_I386_REL32 = 0x0014,
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IMAGE_REL_AMD64_ABSOLUTE = 0x0000,
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IMAGE_REL_AMD64_ADDR64 = 0x0001,
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IMAGE_REL_AMD64_ADDR32 = 0x0002,
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IMAGE_REL_AMD64_ADDR32NB = 0x0003,
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IMAGE_REL_AMD64_REL32 = 0x0004,
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IMAGE_REL_AMD64_REL32_1 = 0x0005,
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IMAGE_REL_AMD64_REL32_2 = 0x0006,
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IMAGE_REL_AMD64_REL32_3 = 0x0007,
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IMAGE_REL_AMD64_REL32_4 = 0x0008,
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IMAGE_REL_AMD64_REL32_5 = 0x0009,
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IMAGE_REL_AMD64_SECTION = 0x000A,
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IMAGE_REL_AMD64_SECREL = 0x000B,
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IMAGE_REL_AMD64_SECREL7 = 0x000C,
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IMAGE_REL_AMD64_TOKEN = 0x000D,
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IMAGE_REL_AMD64_SREL32 = 0x000E,
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IMAGE_REL_AMD64_PAIR = 0x000F,
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IMAGE_REL_AMD64_SSPAN32 = 0x0010
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};
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enum COMDATType {
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IMAGE_COMDAT_SELECT_NODUPLICATES = 1,
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IMAGE_COMDAT_SELECT_ANY,
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IMAGE_COMDAT_SELECT_SAME_SIZE,
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IMAGE_COMDAT_SELECT_EXACT_MATCH,
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IMAGE_COMDAT_SELECT_ASSOCIATIVE,
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IMAGE_COMDAT_SELECT_LARGEST
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};
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// Auxiliary Symbol Formats
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struct AuxiliaryFunctionDefinition {
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uint32_t TagIndex;
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uint32_t TotalSize;
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uint32_t PointerToLinenumber;
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uint32_t PointerToNextFunction;
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uint8_t unused[2];
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};
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struct AuxiliarybfAndefSymbol {
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uint8_t unused1[4];
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uint16_t Linenumber;
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uint8_t unused2[6];
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uint32_t PointerToNextFunction;
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uint8_t unused3[2];
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};
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struct AuxiliaryWeakExternal {
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uint32_t TagIndex;
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uint32_t Characteristics;
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uint8_t unused[10];
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};
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/// These are not documented in the spec, but are located in WinNT.h.
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enum WeakExternalCharacteristics {
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IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY = 1,
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IMAGE_WEAK_EXTERN_SEARCH_LIBRARY = 2,
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IMAGE_WEAK_EXTERN_SEARCH_ALIAS = 3
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};
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struct AuxiliaryFile {
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uint8_t FileName[18];
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};
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struct AuxiliarySectionDefinition {
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uint32_t Length;
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uint16_t NumberOfRelocations;
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uint16_t NumberOfLinenumbers;
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uint32_t CheckSum;
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uint16_t Number;
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uint8_t Selection;
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uint8_t unused[3];
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};
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union Auxiliary {
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AuxiliaryFunctionDefinition FunctionDefinition;
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AuxiliarybfAndefSymbol bfAndefSymbol;
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AuxiliaryWeakExternal WeakExternal;
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AuxiliaryFile File;
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AuxiliarySectionDefinition SectionDefinition;
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};
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} // End namespace llvm.
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} // End namespace COFF.
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#endif
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