| 1 | /* Support for the generic parts of PE/PEI; common header information. | 
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| 2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 | 
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| 3 | Free Software Foundation, Inc. | 
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| 4 | Written by Cygnus Solutions. | 
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| 5 |  | 
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| 6 | This file is part of BFD, the Binary File Descriptor library. | 
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| 7 |  | 
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| 8 | This program is free software; you can redistribute it and/or modify | 
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| 9 | it under the terms of the GNU General Public License as published by | 
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| 10 | the Free Software Foundation; either version 2 of the License, or | 
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| 11 | (at your option) any later version. | 
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| 12 |  | 
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| 13 | This program is distributed in the hope that it will be useful, | 
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | 
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
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| 16 | GNU General Public License for more details. | 
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| 17 |  | 
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| 18 | You should have received a copy of the GNU General Public License | 
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| 19 | along with this program; if not, write to the Free Software | 
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| 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */ | 
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| 21 |  | 
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| 22 | /* Most of this hacked by  Steve Chamberlain, | 
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| 23 | sac@cygnus.com | 
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| 24 |  | 
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| 25 | PE/PEI rearrangement (and code added): Donn Terry | 
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| 26 | Softway Systems, Inc.  */ | 
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| 27 |  | 
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| 28 | /* Hey look, some documentation [and in a place you expect to find it]! | 
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| 29 |  | 
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| 30 | The main reference for the pei format is "Microsoft Portable Executable | 
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| 31 | and Common Object File Format Specification 4.1".  Get it if you need to | 
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| 32 | do some serious hacking on this code. | 
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| 33 |  | 
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| 34 | Another reference: | 
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| 35 | "Peering Inside the PE: A Tour of the Win32 Portable Executable | 
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| 36 | File Format", MSJ 1994, Volume 9. | 
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| 37 |  | 
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| 38 | The *sole* difference between the pe format and the pei format is that the | 
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| 39 | latter has an MSDOS 2.0 .exe header on the front that prints the message | 
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| 40 | "This app must be run under Windows." (or some such). | 
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| 41 | (FIXME: Whether that statement is *really* true or not is unknown. | 
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| 42 | Are there more subtle differences between pe and pei formats? | 
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| 43 | For now assume there aren't.  If you find one, then for God sakes | 
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| 44 | document it here!) | 
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| 45 |  | 
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| 46 | The Microsoft docs use the word "image" instead of "executable" because | 
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| 47 | the former can also refer to a DLL (shared library).  Confusion can arise | 
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| 48 | because the `i' in `pei' also refers to "image".  The `pe' format can | 
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| 49 | also create images (i.e. executables), it's just that to run on a win32 | 
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| 50 | system you need to use the pei format. | 
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| 51 |  | 
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| 52 | FIXME: Please add more docs here so the next poor fool that has to hack | 
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| 53 | on this code has a chance of getting something accomplished without | 
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| 54 | wasting too much time.  */ | 
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| 55 |  | 
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| 56 | #ifndef GET_FCN_LNNOPTR | 
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| 57 | #define GET_FCN_LNNOPTR(abfd, ext) \ | 
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| 58 | H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) | 
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| 59 | #endif | 
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| 60 |  | 
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| 61 | #ifndef GET_FCN_ENDNDX | 
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| 62 | #define GET_FCN_ENDNDX(abfd, ext) \ | 
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| 63 | H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx) | 
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| 64 | #endif | 
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| 65 |  | 
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| 66 | #ifndef PUT_FCN_LNNOPTR | 
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| 67 | #define PUT_FCN_LNNOPTR(abfd, in, ext) \ | 
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| 68 | H_PUT_32(abfd, in, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) | 
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| 69 | #endif | 
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| 70 | #ifndef PUT_FCN_ENDNDX | 
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| 71 | #define PUT_FCN_ENDNDX(abfd, in, ext) \ | 
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| 72 | H_PUT_32(abfd, in, ext->x_sym.x_fcnary.x_fcn.x_endndx) | 
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| 73 | #endif | 
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| 74 | #ifndef GET_LNSZ_LNNO | 
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| 75 | #define GET_LNSZ_LNNO(abfd, ext) \ | 
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| 76 | H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno) | 
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| 77 | #endif | 
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| 78 | #ifndef GET_LNSZ_SIZE | 
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| 79 | #define GET_LNSZ_SIZE(abfd, ext) \ | 
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| 80 | H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size) | 
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| 81 | #endif | 
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| 82 | #ifndef PUT_LNSZ_LNNO | 
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| 83 | #define PUT_LNSZ_LNNO(abfd, in, ext) \ | 
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| 84 | H_PUT_16(abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno) | 
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| 85 | #endif | 
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| 86 | #ifndef PUT_LNSZ_SIZE | 
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| 87 | #define PUT_LNSZ_SIZE(abfd, in, ext) \ | 
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| 88 | H_PUT_16(abfd, in, ext->x_sym.x_misc.x_lnsz.x_size) | 
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| 89 | #endif | 
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| 90 | #ifndef GET_SCN_SCNLEN | 
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| 91 | #define GET_SCN_SCNLEN(abfd, ext) \ | 
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| 92 | H_GET_32 (abfd, ext->x_scn.x_scnlen) | 
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| 93 | #endif | 
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| 94 | #ifndef GET_SCN_NRELOC | 
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| 95 | #define GET_SCN_NRELOC(abfd, ext) \ | 
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| 96 | H_GET_16 (abfd, ext->x_scn.x_nreloc) | 
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| 97 | #endif | 
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| 98 | #ifndef GET_SCN_NLINNO | 
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| 99 | #define GET_SCN_NLINNO(abfd, ext) \ | 
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| 100 | H_GET_16 (abfd, ext->x_scn.x_nlinno) | 
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| 101 | #endif | 
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| 102 | #ifndef PUT_SCN_SCNLEN | 
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| 103 | #define PUT_SCN_SCNLEN(abfd, in, ext) \ | 
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| 104 | H_PUT_32(abfd, in, ext->x_scn.x_scnlen) | 
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| 105 | #endif | 
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| 106 | #ifndef PUT_SCN_NRELOC | 
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| 107 | #define PUT_SCN_NRELOC(abfd, in, ext) \ | 
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| 108 | H_PUT_16(abfd, in, ext->x_scn.x_nreloc) | 
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| 109 | #endif | 
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| 110 | #ifndef PUT_SCN_NLINNO | 
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| 111 | #define PUT_SCN_NLINNO(abfd, in, ext) \ | 
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| 112 | H_PUT_16(abfd,in, ext->x_scn.x_nlinno) | 
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| 113 | #endif | 
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| 114 | #ifndef GET_LINENO_LNNO | 
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| 115 | #define GET_LINENO_LNNO(abfd, ext) \ | 
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| 116 | H_GET_16 (abfd, ext->l_lnno); | 
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| 117 | #endif | 
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| 118 | #ifndef PUT_LINENO_LNNO | 
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| 119 | #define PUT_LINENO_LNNO(abfd, val, ext) \ | 
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| 120 | H_PUT_16(abfd,val, ext->l_lnno); | 
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| 121 | #endif | 
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| 122 |  | 
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| 123 | /* The f_symptr field in the filehdr is sometimes 64 bits.  */ | 
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| 124 | #ifndef GET_FILEHDR_SYMPTR | 
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| 125 | #define GET_FILEHDR_SYMPTR H_GET_32 | 
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| 126 | #endif | 
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| 127 | #ifndef PUT_FILEHDR_SYMPTR | 
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| 128 | #define PUT_FILEHDR_SYMPTR H_PUT_32 | 
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| 129 | #endif | 
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| 130 |  | 
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| 131 | /* Some fields in the aouthdr are sometimes 64 bits.  */ | 
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| 132 | #ifndef GET_AOUTHDR_TSIZE | 
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| 133 | #define GET_AOUTHDR_TSIZE H_GET_32 | 
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| 134 | #endif | 
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| 135 | #ifndef PUT_AOUTHDR_TSIZE | 
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| 136 | #define PUT_AOUTHDR_TSIZE H_PUT_32 | 
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| 137 | #endif | 
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| 138 | #ifndef GET_AOUTHDR_DSIZE | 
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| 139 | #define GET_AOUTHDR_DSIZE H_GET_32 | 
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| 140 | #endif | 
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| 141 | #ifndef PUT_AOUTHDR_DSIZE | 
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| 142 | #define PUT_AOUTHDR_DSIZE H_PUT_32 | 
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| 143 | #endif | 
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| 144 | #ifndef GET_AOUTHDR_BSIZE | 
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| 145 | #define GET_AOUTHDR_BSIZE H_GET_32 | 
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| 146 | #endif | 
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| 147 | #ifndef PUT_AOUTHDR_BSIZE | 
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| 148 | #define PUT_AOUTHDR_BSIZE H_PUT_32 | 
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| 149 | #endif | 
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| 150 | #ifndef GET_AOUTHDR_ENTRY | 
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| 151 | #define GET_AOUTHDR_ENTRY H_GET_32 | 
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| 152 | #endif | 
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| 153 | #ifndef PUT_AOUTHDR_ENTRY | 
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| 154 | #define PUT_AOUTHDR_ENTRY H_PUT_32 | 
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| 155 | #endif | 
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| 156 | #ifndef GET_AOUTHDR_TEXT_START | 
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| 157 | #define GET_AOUTHDR_TEXT_START H_GET_32 | 
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| 158 | #endif | 
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| 159 | #ifndef PUT_AOUTHDR_TEXT_START | 
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| 160 | #define PUT_AOUTHDR_TEXT_START H_PUT_32 | 
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| 161 | #endif | 
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| 162 | #ifndef GET_AOUTHDR_DATA_START | 
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| 163 | #define GET_AOUTHDR_DATA_START H_GET_32 | 
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| 164 | #endif | 
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| 165 | #ifndef PUT_AOUTHDR_DATA_START | 
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| 166 | #define PUT_AOUTHDR_DATA_START H_PUT_32 | 
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| 167 | #endif | 
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| 168 |  | 
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| 169 | /* Some fields in the scnhdr are sometimes 64 bits.  */ | 
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| 170 | #ifndef GET_SCNHDR_PADDR | 
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| 171 | #define GET_SCNHDR_PADDR H_GET_32 | 
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| 172 | #endif | 
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| 173 | #ifndef PUT_SCNHDR_PADDR | 
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| 174 | #define PUT_SCNHDR_PADDR H_PUT_32 | 
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| 175 | #endif | 
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| 176 | #ifndef GET_SCNHDR_VADDR | 
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| 177 | #define GET_SCNHDR_VADDR H_GET_32 | 
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| 178 | #endif | 
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| 179 | #ifndef PUT_SCNHDR_VADDR | 
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| 180 | #define PUT_SCNHDR_VADDR H_PUT_32 | 
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| 181 | #endif | 
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| 182 | #ifndef GET_SCNHDR_SIZE | 
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| 183 | #define GET_SCNHDR_SIZE H_GET_32 | 
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| 184 | #endif | 
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| 185 | #ifndef PUT_SCNHDR_SIZE | 
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| 186 | #define PUT_SCNHDR_SIZE H_PUT_32 | 
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| 187 | #endif | 
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| 188 | #ifndef GET_SCNHDR_SCNPTR | 
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| 189 | #define GET_SCNHDR_SCNPTR H_GET_32 | 
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| 190 | #endif | 
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| 191 | #ifndef PUT_SCNHDR_SCNPTR | 
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| 192 | #define PUT_SCNHDR_SCNPTR H_PUT_32 | 
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| 193 | #endif | 
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| 194 | #ifndef GET_SCNHDR_RELPTR | 
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| 195 | #define GET_SCNHDR_RELPTR H_GET_32 | 
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| 196 | #endif | 
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| 197 | #ifndef PUT_SCNHDR_RELPTR | 
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| 198 | #define PUT_SCNHDR_RELPTR H_PUT_32 | 
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| 199 | #endif | 
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| 200 | #ifndef GET_SCNHDR_LNNOPTR | 
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| 201 | #define GET_SCNHDR_LNNOPTR H_GET_32 | 
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| 202 | #endif | 
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| 203 | #ifndef PUT_SCNHDR_LNNOPTR | 
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| 204 | #define PUT_SCNHDR_LNNOPTR H_PUT_32 | 
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| 205 | #endif | 
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| 206 |  | 
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| 207 | #ifdef COFF_WITH_pep | 
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| 208 |  | 
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| 209 | #define GET_OPTHDR_IMAGE_BASE H_GET_64 | 
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| 210 | #define PUT_OPTHDR_IMAGE_BASE H_PUT_64 | 
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| 211 | #define GET_OPTHDR_SIZE_OF_STACK_RESERVE H_GET_64 | 
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| 212 | #define PUT_OPTHDR_SIZE_OF_STACK_RESERVE H_PUT_64 | 
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| 213 | #define GET_OPTHDR_SIZE_OF_STACK_COMMIT H_GET_64 | 
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| 214 | #define PUT_OPTHDR_SIZE_OF_STACK_COMMIT H_PUT_64 | 
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| 215 | #define GET_OPTHDR_SIZE_OF_HEAP_RESERVE H_GET_64 | 
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| 216 | #define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE H_PUT_64 | 
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| 217 | #define GET_OPTHDR_SIZE_OF_HEAP_COMMIT H_GET_64 | 
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| 218 | #define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT H_PUT_64 | 
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| 219 | #define GET_PDATA_ENTRY bfd_get_64 | 
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| 220 |  | 
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| 221 | #define _bfd_XX_bfd_copy_private_bfd_data_common        _bfd_pep_bfd_copy_private_bfd_data_common | 
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| 222 | #define _bfd_XX_bfd_copy_private_section_data           _bfd_pep_bfd_copy_private_section_data | 
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| 223 | #define _bfd_XX_get_symbol_info                         _bfd_pep_get_symbol_info | 
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| 224 | #define _bfd_XX_only_swap_filehdr_out                   _bfd_pep_only_swap_filehdr_out | 
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| 225 | #define _bfd_XX_print_private_bfd_data_common           _bfd_pep_print_private_bfd_data_common | 
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| 226 | #define _bfd_XXi_final_link_postscript                  _bfd_pepi_final_link_postscript | 
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| 227 | #define _bfd_XXi_final_link_postscript                  _bfd_pepi_final_link_postscript | 
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| 228 | #define _bfd_XXi_only_swap_filehdr_out                  _bfd_pepi_only_swap_filehdr_out | 
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| 229 | #define _bfd_XXi_swap_aouthdr_in                        _bfd_pepi_swap_aouthdr_in | 
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| 230 | #define _bfd_XXi_swap_aouthdr_out                       _bfd_pepi_swap_aouthdr_out | 
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| 231 | #define _bfd_XXi_swap_aux_in                            _bfd_pepi_swap_aux_in | 
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| 232 | #define _bfd_XXi_swap_aux_out                           _bfd_pepi_swap_aux_out | 
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| 233 | #define _bfd_XXi_swap_lineno_in                         _bfd_pepi_swap_lineno_in | 
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| 234 | #define _bfd_XXi_swap_lineno_out                        _bfd_pepi_swap_lineno_out | 
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| 235 | #define _bfd_XXi_swap_scnhdr_out                        _bfd_pepi_swap_scnhdr_out | 
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| 236 | #define _bfd_XXi_swap_sym_in                            _bfd_pepi_swap_sym_in | 
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| 237 | #define _bfd_XXi_swap_sym_out                           _bfd_pepi_swap_sym_out | 
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| 238 |  | 
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| 239 | #else /* !COFF_WITH_pep */ | 
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| 240 |  | 
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| 241 | #define GET_OPTHDR_IMAGE_BASE H_GET_32 | 
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| 242 | #define PUT_OPTHDR_IMAGE_BASE H_PUT_32 | 
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| 243 | #define GET_OPTHDR_SIZE_OF_STACK_RESERVE H_GET_32 | 
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| 244 | #define PUT_OPTHDR_SIZE_OF_STACK_RESERVE H_PUT_32 | 
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| 245 | #define GET_OPTHDR_SIZE_OF_STACK_COMMIT H_GET_32 | 
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| 246 | #define PUT_OPTHDR_SIZE_OF_STACK_COMMIT H_PUT_32 | 
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| 247 | #define GET_OPTHDR_SIZE_OF_HEAP_RESERVE H_GET_32 | 
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| 248 | #define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE H_PUT_32 | 
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| 249 | #define GET_OPTHDR_SIZE_OF_HEAP_COMMIT H_GET_32 | 
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| 250 | #define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT H_PUT_32 | 
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| 251 | #define GET_PDATA_ENTRY bfd_get_32 | 
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| 252 |  | 
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| 253 | #define _bfd_XX_bfd_copy_private_bfd_data_common        _bfd_pe_bfd_copy_private_bfd_data_common | 
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| 254 | #define _bfd_XX_bfd_copy_private_section_data           _bfd_pe_bfd_copy_private_section_data | 
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| 255 | #define _bfd_XX_get_symbol_info                         _bfd_pe_get_symbol_info | 
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| 256 | #define _bfd_XX_only_swap_filehdr_out                   _bfd_pe_only_swap_filehdr_out | 
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| 257 | #define _bfd_XX_print_private_bfd_data_common           _bfd_pe_print_private_bfd_data_common | 
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| 258 | #define _bfd_XXi_final_link_postscript                  _bfd_pei_final_link_postscript | 
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| 259 | #define _bfd_XXi_final_link_postscript                  _bfd_pei_final_link_postscript | 
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| 260 | #define _bfd_XXi_only_swap_filehdr_out                  _bfd_pei_only_swap_filehdr_out | 
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| 261 | #define _bfd_XXi_swap_aouthdr_in                        _bfd_pei_swap_aouthdr_in | 
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| 262 | #define _bfd_XXi_swap_aouthdr_out                       _bfd_pei_swap_aouthdr_out | 
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| 263 | #define _bfd_XXi_swap_aux_in                            _bfd_pei_swap_aux_in | 
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| 264 | #define _bfd_XXi_swap_aux_out                           _bfd_pei_swap_aux_out | 
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| 265 | #define _bfd_XXi_swap_lineno_in                         _bfd_pei_swap_lineno_in | 
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| 266 | #define _bfd_XXi_swap_lineno_out                        _bfd_pei_swap_lineno_out | 
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| 267 | #define _bfd_XXi_swap_scnhdr_out                        _bfd_pei_swap_scnhdr_out | 
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| 268 | #define _bfd_XXi_swap_sym_in                            _bfd_pei_swap_sym_in | 
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| 269 | #define _bfd_XXi_swap_sym_out                           _bfd_pei_swap_sym_out | 
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| 270 |  | 
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| 271 | #endif /* !COFF_WITH_pep */ | 
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| 272 |  | 
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| 273 | /* These functions are architecture dependent, and are in peicode.h: | 
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| 274 | coff_swap_reloc_in | 
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| 275 | int coff_swap_reloc_out | 
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| 276 | coff_swap_filehdr_in | 
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| 277 | coff_swap_scnhdr_in | 
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| 278 | pe_mkobject | 
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| 279 | pe_mkobject_hook  */ | 
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| 280 |  | 
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| 281 | /* The functions described below are common across all PE/PEI | 
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| 282 | implementations architecture types, and actually appear in | 
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| 283 | peigen.c.  */ | 
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| 284 |  | 
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| 285 | void _bfd_XXi_swap_sym_in PARAMS ((bfd*, PTR, PTR)); | 
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| 286 | #define coff_swap_sym_in _bfd_XXi_swap_sym_in | 
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| 287 |  | 
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| 288 | unsigned int _bfd_XXi_swap_sym_out PARAMS ((bfd*, PTR, PTR)); | 
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| 289 | #define coff_swap_sym_out _bfd_XXi_swap_sym_out | 
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| 290 |  | 
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| 291 | void _bfd_XXi_swap_aux_in PARAMS ((bfd *, PTR, int, int, int, int, PTR)); | 
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| 292 | #define coff_swap_aux_in _bfd_XXi_swap_aux_in | 
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| 293 |  | 
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| 294 | unsigned int _bfd_XXi_swap_aux_out \ | 
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| 295 | PARAMS ((bfd *, PTR, int, int, int, int, PTR)); | 
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| 296 | #define coff_swap_aux_out _bfd_XXi_swap_aux_out | 
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| 297 |  | 
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| 298 | void _bfd_XXi_swap_lineno_in PARAMS ((bfd*, PTR, PTR)); | 
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| 299 | #define coff_swap_lineno_in _bfd_XXi_swap_lineno_in | 
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| 300 |  | 
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| 301 | unsigned int _bfd_XXi_swap_lineno_out PARAMS ((bfd*, PTR, PTR)); | 
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| 302 | #define coff_swap_lineno_out _bfd_XXi_swap_lineno_out | 
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| 303 |  | 
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| 304 | void _bfd_XXi_swap_aouthdr_in PARAMS ((bfd*, PTR, PTR)); | 
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| 305 | #define coff_swap_aouthdr_in _bfd_XXi_swap_aouthdr_in | 
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| 306 |  | 
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| 307 | unsigned int _bfd_XXi_swap_aouthdr_out PARAMS ((bfd *, PTR, PTR)); | 
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| 308 | #define coff_swap_aouthdr_out _bfd_XXi_swap_aouthdr_out | 
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| 309 |  | 
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| 310 | unsigned int _bfd_XXi_swap_scnhdr_out PARAMS ((bfd *, PTR, PTR)); | 
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| 311 | #define coff_swap_scnhdr_out _bfd_XXi_swap_scnhdr_out | 
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| 312 |  | 
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| 313 | bfd_boolean _bfd_XX_print_private_bfd_data_common PARAMS ((bfd *, PTR)); | 
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| 314 |  | 
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| 315 | bfd_boolean _bfd_XX_bfd_copy_private_bfd_data_common PARAMS ((bfd *, bfd *)); | 
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| 316 |  | 
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| 317 | void _bfd_XX_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *)); | 
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| 318 |  | 
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| 319 | bfd_boolean _bfd_XXi_final_link_postscript | 
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| 320 | PARAMS ((bfd *, struct coff_final_link_info *)); | 
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| 321 |  | 
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| 322 | #ifndef coff_final_link_postscript | 
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| 323 | #define coff_final_link_postscript _bfd_XXi_final_link_postscript | 
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| 324 | #endif | 
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| 325 | /* The following are needed only for ONE of pe or pei, but don't | 
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| 326 | otherwise vary; peicode.h fixes up ifdefs but we provide the | 
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| 327 | prototype.  */ | 
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| 328 |  | 
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| 329 | unsigned int _bfd_XX_only_swap_filehdr_out PARAMS ((bfd*, PTR, PTR)); | 
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| 330 | unsigned int _bfd_XXi_only_swap_filehdr_out PARAMS ((bfd*, PTR, PTR)); | 
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| 331 | bfd_boolean _bfd_XX_bfd_copy_private_section_data | 
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| 332 | PARAMS ((bfd *, asection *, bfd *, asection *)); | 
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| 333 |  | 
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| 334 | /* Macro: Returns true if the bfd is a PE executable as opposed to a PE object file.  */ | 
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| 335 | #define bfd_pe_executable_p(abfd)  (strncmp ((abfd)->xvec->name, "pei-", 4) == 0) | 
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