| 1 | /* a.out.h
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| 2 |
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| 3 | Copyright 1997, 1998, 1999, 2001 Red Hat, Inc.
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| 4 |
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| 5 | This file is part of Cygwin.
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| 6 |
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| 7 | This software is a copyrighted work licensed under the terms of the
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| 8 | Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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| 9 | details. */
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| 10 |
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| 11 | #ifndef _A_OUT_H_
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| 12 | #define _A_OUT_H_
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| 13 |
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| 14 | #ifdef __cplusplus
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| 15 | extern "C" {
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| 16 | #endif
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| 17 | #define COFF_IMAGE_WITH_PE
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| 18 | #define COFF_LONG_SECTION_NAMES
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| 19 |
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| 20 | /*** coff information for Intel 386/486. */
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| 21 |
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| 22 |
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| 23 | /********************** FILE HEADER **********************/
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| 24 |
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| 25 | struct external_filehdr {
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| 26 | short f_magic; /* magic number */
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| 27 | short f_nscns; /* number of sections */
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| 28 | unsigned long f_timdat; /* time & date stamp */
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| 29 | unsigned long f_symptr; /* file pointer to symtab */
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| 30 | unsigned long f_nsyms; /* number of symtab entries */
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| 31 | short f_opthdr; /* sizeof(optional hdr) */
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| 32 | short f_flags; /* flags */
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| 33 | };
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| 34 |
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| 35 | /* Bits for f_flags:
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| 36 | * F_RELFLG relocation info stripped from file
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| 37 | * F_EXEC file is executable (no unresolved external references)
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| 38 | * F_LNNO line numbers stripped from file
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| 39 | * F_LSYMS local symbols stripped from file
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| 40 | * F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax)
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| 41 | */
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| 42 |
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| 43 | #define F_RELFLG (0x0001)
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| 44 | #define F_EXEC (0x0002)
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| 45 | #define F_LNNO (0x0004)
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| 46 | #define F_LSYMS (0x0008)
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| 47 |
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| 48 |
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| 49 |
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| 50 | #define I386MAGIC 0x14c
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| 51 | #define I386PTXMAGIC 0x154
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| 52 | #define I386AIXMAGIC 0x175
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| 53 |
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| 54 | /* This is Lynx's all-platform magic number for executables. */
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| 55 |
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| 56 | #define LYNXCOFFMAGIC 0415
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| 57 |
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| 58 | #define I386BADMAG(x) (((x).f_magic != I386MAGIC) \
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| 59 | && (x).f_magic != I386AIXMAGIC \
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| 60 | && (x).f_magic != I386PTXMAGIC \
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| 61 | && (x).f_magic != LYNXCOFFMAGIC)
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| 62 |
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| 63 | #define FILHDR struct external_filehdr
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| 64 | #define FILHSZ 20
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| 65 |
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| 66 |
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| 67 | /********************** AOUT "OPTIONAL HEADER"=
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| 68 | **********************/
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| 69 |
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| 70 |
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| 71 | typedef struct
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| 72 | {
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| 73 | unsigned short magic; /* type of file */
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| 74 | unsigned short vstamp; /* version stamp */
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| 75 | unsigned long tsize; /* text size in bytes, padded to FW bdry*/
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| 76 | unsigned long dsize; /* initialized data " " */
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| 77 | unsigned long bsize; /* uninitialized data " " */
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| 78 | unsigned long entry; /* entry pt. */
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| 79 | unsigned long text_start; /* base of text used for this file */
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| 80 | unsigned long data_start; /* base of data used for this file=
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| 81 | */
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| 82 | }
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| 83 | AOUTHDR;
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| 84 |
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| 85 | #define AOUTSZ 28
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| 86 | #define AOUTHDRSZ 28
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| 87 |
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| 88 | #define OMAGIC 0404 /* object files, eg as output */
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| 89 | #define ZMAGIC 0413 /* demand load format, eg normal ld output */
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| 90 | #define STMAGIC 0401 /* target shlib */
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| 91 | #define SHMAGIC 0443 /* host shlib */
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| 92 |
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| 93 |
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| 94 | /* define some NT default values */
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| 95 | /* #define NT_IMAGE_BASE 0x400000 moved to internal.h */
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| 96 | #define NT_SECTION_ALIGNMENT 0x1000
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| 97 | #define NT_FILE_ALIGNMENT 0x200
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| 98 | #define NT_DEF_RESERVE 0x100000
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| 99 | #define NT_DEF_COMMIT 0x1000
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| 100 |
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| 101 | /********************** SECTION HEADER **********************/
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| 102 |
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| 103 |
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| 104 | struct external_scnhdr {
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| 105 | char s_name[8]; /* section name */
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| 106 | unsigned long s_paddr; /* physical address, offset
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| 107 | of last addr in scn */
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| 108 | unsigned long s_vaddr; /* virtual address */
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| 109 | unsigned long s_size; /* section size */
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| 110 | unsigned long s_scnptr; /* file ptr to raw data for section */
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| 111 | unsigned long s_relptr; /* file ptr to relocation */
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| 112 | unsigned long s_lnnoptr; /* file ptr to line numbers */
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| 113 | unsigned short s_nreloc; /* number of relocation entries */
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| 114 | unsigned short s_nlnno; /* number of line number entries*/
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| 115 | unsigned long s_flags; /* flags */
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| 116 | };
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| 117 |
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| 118 | #define SCNHDR struct external_scnhdr
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| 119 | #define SCNHSZ 40
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| 120 |
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| 121 | /*
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| 122 | * names of "special" sections
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| 123 | */
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| 124 | #define _TEXT ".text"
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| 125 | #define _DATA ".data"
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| 126 | #define _BSS ".bss"
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| 127 | #define _COMMENT ".comment"
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| 128 | #define _LIB ".lib"
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| 129 |
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| 130 | /********************** LINE NUMBERS **********************/
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| 131 |
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| 132 | /* 1 line number entry for every "breakpointable" source line in a section.
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| 133 | * Line numbers are grouped on a per function basis; first entry in a function
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| 134 | * grouping will have l_lnno = 0 and in place of physical address will be the
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| 135 | * symbol table index of the function name.
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| 136 | */
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| 137 | struct external_lineno {
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| 138 | union {
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| 139 | unsigned long l_symndx; /* function name symbol index, iff l_lnno 0 */
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| 140 | unsigned long l_paddr; /* (physical) address of line number */
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| 141 | } l_addr;
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| 142 | unsigned short l_lnno; /* line number */
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| 143 | };
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| 144 |
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| 145 | #define LINENO struct external_lineno
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| 146 | #define LINESZ 6
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| 147 |
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| 148 | /********************** SYMBOLS **********************/
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| 149 |
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| 150 | #define E_SYMNMLEN 8 /* # characters in a symbol name */
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| 151 | #define E_FILNMLEN 14 /* # characters in a file name */
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| 152 | #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
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| 153 |
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| 154 | struct __attribute__((packed)) external_syment
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| 155 | {
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| 156 | union {
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| 157 | char e_name[E_SYMNMLEN];
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| 158 | struct {
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| 159 | unsigned long e_zeroes;
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| 160 | unsigned long e_offset;
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| 161 | } e;
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| 162 | } e;
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| 163 | unsigned long e_value;
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| 164 | unsigned short e_scnum;
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| 165 | unsigned short e_type;
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| 166 | char e_sclass[1];
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| 167 | char e_numaux[1];
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| 168 | };
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| 169 |
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| 170 | #define N_BTMASK (0xf)
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| 171 | #define N_TMASK (0x30)
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| 172 | #define N_BTSHFT (4)
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| 173 | #define N_TSHIFT (2)
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| 174 |
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| 175 | union external_auxent {
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| 176 | struct {
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| 177 | unsigned long x_tagndx; /* str, un, or enum tag indx */
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| 178 | union {
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| 179 | struct {
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| 180 | unsigned short x_lnno; /* declaration line number */
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| 181 | unsigned short x_size; /* str/union/array size */
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| 182 | } x_lnsz;
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| 183 | unsigned long x_fsize; /* size of function */
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| 184 | } x_misc;
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| 185 | union {
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| 186 | struct { /* if ISFCN, tag, or .bb */
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| 187 | unsigned long x_lnnoptr;/* ptr to fcn line # */
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| 188 | unsigned long x_endndx; /* entry ndx past block end */
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| 189 | } x_fcn;
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| 190 | struct { /* if ISARY, up to 4 dimen. */
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| 191 | char x_dimen[E_DIMNUM][2];
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| 192 | } x_ary;
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| 193 | } x_fcnary;
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| 194 | unsigned short x_tvndx; /* tv index */
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| 195 | } x_sym;
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| 196 |
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| 197 | union {
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| 198 | char x_fname[E_FILNMLEN];
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| 199 | struct {
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| 200 | unsigned long x_zeroes;
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| 201 | unsigned long x_offset;
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| 202 | } x_n;
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| 203 | } x_file;
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| 204 |
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| 205 | struct {
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| 206 | unsigned long x_scnlen; /* section length */
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| 207 | unsigned short x_nreloc; /* # relocation entries */
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| 208 | unsigned short x_nlinno; /* # line numbers */
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| 209 | unsigned long x_checksum; /* section COMDAT checksum */
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| 210 | unsigned short x_associated;/* COMDAT associated section index */
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| 211 | char x_comdat[1]; /* COMDAT selection number */
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| 212 | } x_scn;
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| 213 |
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| 214 | struct {
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| 215 | unsigned long x_tvfill; /* tv fill value */
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| 216 | unsigned short x_tvlen; /* length of .tv */
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| 217 | char x_tvran[2][2]; /* tv range */
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| 218 | } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
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| 219 |
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| 220 | };
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| 221 |
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| 222 | #define SYMENT struct external_syment
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| 223 | #define SYMESZ 18
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| 224 | #define AUXENT union external_auxent
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| 225 | #define AUXESZ 18
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| 226 |
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| 227 | #define _ETEXT "etext"
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| 228 |
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| 229 | /********************** RELOCATION DIRECTIVES **********************/
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| 230 |
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| 231 | struct external_reloc {
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| 232 | char r_vaddr[4];
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| 233 | char r_symndx[4];
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| 234 | char r_type[2];
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| 235 | };
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| 236 |
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| 237 | #define RELOC struct external_reloc
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| 238 | #define RELSZ 10
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| 239 |
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| 240 | /* end of coff/i386.h */
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| 241 |
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| 242 | /* PE COFF header information */
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| 243 |
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| 244 | #ifndef _PE_H
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| 245 | #define _PE_H
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| 246 |
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| 247 | /* NT specific file attributes */
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| 248 | #define IMAGE_FILE_RELOCS_STRIPPED 0x0001
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| 249 | #define IMAGE_FILE_EXECUTABLE_IMAGE 0x0002
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| 250 | #define IMAGE_FILE_LINE_NUMS_STRIPPED 0x0004
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| 251 | #define IMAGE_FILE_LOCAL_SYMS_STRIPPED 0x0008
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| 252 | #define IMAGE_FILE_BYTES_REVERSED_LO 0x0080
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| 253 | #define IMAGE_FILE_32BIT_MACHINE 0x0100
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| 254 | #define IMAGE_FILE_DEBUG_STRIPPED 0x0200
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| 255 | #define IMAGE_FILE_SYSTEM 0x1000
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| 256 | #define IMAGE_FILE_DLL 0x2000
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| 257 | #define IMAGE_FILE_BYTES_REVERSED_HI 0x8000
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| 258 |
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| 259 | /* additional flags to be set for section headers to allow the NT loader to
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| 260 | read and write to the section data (to replace the addresses of data in
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| 261 | dlls for one thing); also to execute the section in .text's case=
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| 262 | */
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| 263 | #define IMAGE_SCN_MEM_DISCARDABLE 0x02000000
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| 264 | #define IMAGE_SCN_MEM_EXECUTE 0x20000000
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| 265 | #define IMAGE_SCN_MEM_READ 0x40000000
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| 266 | #define IMAGE_SCN_MEM_WRITE 0x80000000
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| 267 |
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| 268 | /*
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| 269 | * Section characteristics added for ppc-nt
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| 270 | */
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| 271 |
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| 272 | #define IMAGE_SCN_TYPE_NO_PAD 0x00000008 /* Reserved. */
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| 273 |
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| 274 | #define IMAGE_SCN_CNT_CODE 0x00000020 /* Section contains code. */
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| 275 | #define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040 /* Section contains initialized data. */
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| 276 | #define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080 /* Section contains uninitialized data. */
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| 277 |
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| 278 | #define IMAGE_SCN_LNK_OTHER 0x00000100 /* Reserved. */
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| 279 | #define IMAGE_SCN_LNK_INFO 0x00000200 /* Section contains comments or some other type of information. */
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| 280 | #define IMAGE_SCN_LNK_REMOVE 0x00000800 /* Section contents will not become part of image. */
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| 281 | #define IMAGE_SCN_LNK_COMDAT 0x00001000 /* Section contents comdat. */
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| 282 |
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| 283 | #define IMAGE_SCN_MEM_FARDATA 0x00008000
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| 284 |
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| 285 | #define IMAGE_SCN_MEM_PURGEABLE 0x00020000
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| 286 | #define IMAGE_SCN_MEM_16BIT 0x00020000
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| 287 | #define IMAGE_SCN_MEM_LOCKED 0x00040000
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| 288 | #define IMAGE_SCN_MEM_PRELOAD 0x00080000
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| 289 |
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| 290 | #define IMAGE_SCN_ALIGN_1BYTES 0x00100000
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| 291 | #define IMAGE_SCN_ALIGN_2BYTES 0x00200000
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| 292 | #define IMAGE_SCN_ALIGN_4BYTES 0x00300000
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| 293 | #define IMAGE_SCN_ALIGN_8BYTES 0x00400000
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| 294 | #define IMAGE_SCN_ALIGN_16BYTES 0x00500000 /* Default alignment if no others are specified. */
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| 295 | #define IMAGE_SCN_ALIGN_32BYTES 0x00600000
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| 296 | #define IMAGE_SCN_ALIGN_64BYTES 0x00700000
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| 297 |
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| 298 |
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| 299 | #define IMAGE_SCN_LNK_NRELOC_OVFL 0x01000000 /* Section contains extended relocations. */
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| 300 | #define IMAGE_SCN_MEM_NOT_CACHED 0x04000000 /* Section is not cacheable. */
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| 301 | #define IMAGE_SCN_MEM_NOT_PAGED 0x08000000 /* Section is not pageable. */
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| 302 | #define IMAGE_SCN_MEM_SHARED 0x10000000 /* Section is shareable. */
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| 303 |
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| 304 | /* COMDAT selection codes. */
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| 305 |
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| 306 | #define IMAGE_COMDAT_SELECT_NODUPLICATES (1) /* Warn if duplicates. */
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| 307 | #define IMAGE_COMDAT_SELECT_ANY (2) /* No warning. */
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| 308 | #define IMAGE_COMDAT_SELECT_SAME_SIZE (3) /* Warn if different size. */
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| 309 | #define IMAGE_COMDAT_SELECT_EXACT_MATCH (4) /* Warn if different. */
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| 310 | #define IMAGE_COMDAT_SELECT_ASSOCIATIVE (5) /* Base on other section. */
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| 311 |
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| 312 | /* Magic values that are true for all dos/nt implementations */
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| 313 | #define DOSMAGIC 0x5a4d
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| 314 | #define NT_SIGNATURE 0x00004550
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| 315 |
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| 316 | /* NT allows long filenames, we want to accommodate this. This may break
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| 317 | some of the bfd functions */
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| 318 | #undef FILNMLEN
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| 319 | #define FILNMLEN 18 /* # characters in a file name */
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| 320 |
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| 321 |
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| 322 | #ifdef COFF_IMAGE_WITH_PE
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| 323 | /* The filehdr is only weired in images */
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| 324 |
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| 325 | #undef FILHDR
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| 326 | struct external_PE_filehdr
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| 327 | {
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| 328 | /* DOS header fields */
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| 329 | unsigned short e_magic; /* Magic number, 0x5a4d */
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| 330 | unsigned short e_cblp; /* Bytes on last page of file, 0x90 */
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| 331 | unsigned short e_cp; /* Pages in file, 0x3 */
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| 332 | unsigned short e_crlc; /* Relocations, 0x0 */
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| 333 | unsigned short e_cparhdr; /* Size of header in paragraphs, 0x4 */
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| 334 | unsigned short e_minalloc; /* Minimum extra paragraphs needed, 0x0 */
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| 335 | unsigned short e_maxalloc; /* Maximum extra paragraphs needed, 0xFFFF */
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| 336 | unsigned short e_ss; /* Initial (relative) SS value, 0x0 */
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| 337 | unsigned short e_sp; /* Initial SP value, 0xb8 */
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| 338 | unsigned short e_csum; /* Checksum, 0x0 */
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| 339 | unsigned short e_ip; /* Initial IP value, 0x0 */
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| 340 | unsigned short e_cs; /* Initial (relative) CS value, 0x0 */
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| 341 | unsigned short e_lfarlc; /* File address of relocation table, 0x40 */
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| 342 | unsigned short e_ovno; /* Overlay number, 0x0 */
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| 343 | char e_res[4][2]; /* Reserved words, all 0x0 */
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| 344 | unsigned short e_oemid; /* OEM identifier (for e_oeminfo), 0x0 */
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| 345 | unsigned short e_oeminfo; /* OEM information; e_oemid specific, 0x0 */
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| 346 | char e_res2[10][2]; /* Reserved words, all 0x0 */
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| 347 | unsigned long e_lfanew; /* File address of new exe header, 0x80 */
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| 348 | char dos_message[16][4]; /* other stuff, always follow DOS header */
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| 349 | unsigned int nt_signature; /* required NT signature, 0x4550 */
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| 350 |
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| 351 | /* From standard header */
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| 352 |
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| 353 | unsigned short f_magic; /* magic number */
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| 354 | unsigned short f_nscns; /* number of sections */
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| 355 | unsigned long f_timdat; /* time & date stamp */
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| 356 | unsigned long f_symptr; /* file pointer to symtab */
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| 357 | unsigned long f_nsyms; /* number of symtab entries */
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| 358 | unsigned short f_opthdr; /* sizeof(optional hdr) */
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| 359 | unsigned short f_flags; /* flags */
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| 360 | };
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| 361 |
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| 362 |
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| 363 | #define FILHDR struct external_PE_filehdr
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| 364 | #undef FILHSZ
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| 365 | #define FILHSZ 152
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| 366 |
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| 367 | #endif
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| 368 |
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| 369 | typedef struct
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| 370 | {
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| 371 | unsigned short magic; /* type of file */
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| 372 | unsigned short vstamp; /* version stamp */
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| 373 | unsigned long tsize; /* text size in bytes, padded to FW bdry*/
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| 374 | unsigned long dsize; /* initialized data " " */
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| 375 | unsigned long bsize; /* uninitialized data " " */
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| 376 | unsigned long entry; /* entry pt. */
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| 377 | unsigned long text_start; /* base of text used for this file */
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| 378 | unsigned long data_start; /* base of all data used for this file */
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| 379 |
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| 380 | /* NT extra fields; see internal.h for descriptions */
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| 381 | unsigned long ImageBase;
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| 382 | unsigned long SectionAlignment;
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| 383 | unsigned long FileAlignment;
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| 384 | unsigned short MajorOperatingSystemVersion;
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| 385 | unsigned short MinorOperatingSystemVersion;
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| 386 | unsigned short MajorImageVersion;
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| 387 | unsigned short MinorImageVersion;
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| 388 | unsigned short MajorSubsystemVersion;
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| 389 | unsigned short MinorSubsystemVersion;
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| 390 | char Reserved1[4];
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| 391 | unsigned long SizeOfImage;
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| 392 | unsigned long SizeOfHeaders;
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| 393 | unsigned long CheckSum;
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| 394 | unsigned short Subsystem;
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| 395 | unsigned short DllCharacteristics;
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| 396 | unsigned long SizeOfStackReserve;
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| 397 | unsigned long SizeOfStackCommit;
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| 398 | unsigned long SizeOfHeapReserve;
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| 399 | unsigned long SizeOfHeapCommit;
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| 400 | unsigned long LoaderFlags;
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| 401 | unsigned long NumberOfRvaAndSizes;
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| 402 | /* IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES]; */
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| 403 | char DataDirectory[16][2][4]; /* 16 entries, 2 elements/entry, 4 chars */
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| 404 |
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| 405 | } PEAOUTHDR;
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| 406 |
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| 407 |
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| 408 | #undef AOUTSZ
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| 409 | #define AOUTSZ (AOUTHDRSZ + 196)
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| 410 |
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| 411 | #undef E_FILNMLEN
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| 412 | #define E_FILNMLEN 18 /* # characters in a file name */
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| 413 | #endif
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| 414 |
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| 415 | /* end of coff/pe.h */
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| 416 |
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| 417 | #define DT_NON (0) /* no derived type */
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| 418 | #define DT_PTR (1) /* pointer */
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| 419 | #define DT_FCN (2) /* function */
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| 420 | #define DT_ARY (3) /* array */
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| 421 |
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| 422 | #define ISPTR(x) (((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
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| 423 | #define ISFCN(x) (((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
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| 424 | #define ISARY(x) (((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
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| 425 |
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| 426 | #ifdef __cplusplus
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| 427 | }
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|---|
| 428 | #endif
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| 429 |
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| 430 | #endif /* _A_OUT_H_ */
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| 431 |
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