| 1 | /* BFD back-end for i386 a.out binaries.
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| 2 | Copyright 1990, 1991, 1992, 1994, 1996, 1997, 2001, 2002, 2003
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| 3 | Free Software Foundation, Inc.
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| 4 |
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| 5 | This file is part of BFD, the Binary File Descriptor library.
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| 6 |
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| 7 | This program is free software; you can redistribute it and/or modify
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| 8 | it under the terms of the GNU General Public License as published by
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| 9 | the Free Software Foundation; either version 2 of the License, or
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| 10 | (at your option) any later version.
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| 11 |
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| 12 | This program is distributed in the hope that it will be useful,
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | GNU General Public License for more details.
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| 16 |
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| 17 | You should have received a copy of the GNU General Public License
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| 18 | along with this program; if not, write to the Free Software
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| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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| 20 |
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| 21 |
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| 22 | /* The only 386 aout system we have here is GO32 from DJ.
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| 23 | These numbers make BFD work with that. If your aout 386 system
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| 24 | doesn't work with these, we'll have to split them into different
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| 25 | files. Send me (sac@cygnus.com) the runes to make it work on your
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| 26 | system, and I'll stick it in for the next release. */
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| 27 |
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| 28 | #define N_HEADER_IN_TEXT(x) 0
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| 29 |
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| 30 | #define N_TXTOFF(x) 0x20
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| 31 | #define N_TXTADDR(x) (N_MAGIC(x)==ZMAGIC ? 0x1020 : 0)
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| 32 |
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| 33 | #define N_TXTSIZE(x) ((x).a_text)
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| 34 | #if 0
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| 35 | #define N_DATADDR(x) (N_MAGIC(x)==OMAGIC? (N_TXTADDR(x)+(x).a_text) : (SEGMENT_SIZE + ((0x1020+(x).a_text-1) & ~(SEGMENT_SIZE-1))))
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| 36 | #define NOSUBEXECB
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| 37 |
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| 38 | #endif
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| 39 | #define TARGET_PAGE_SIZE 4096
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| 40 | #define SEGMENT_SIZE 0x400000
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| 41 | #define DEFAULT_ARCH bfd_arch_i386
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| 42 |
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| 43 | /* Do not "beautify" the CONCAT* macro args. Traditional C will not
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| 44 | remove whitespace added here, and thus will fail to concatenate
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| 45 | the tokens. */
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| 46 | #define MY(OP) CONCAT2 (i386aout_,OP)
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| 47 | #define TARGETNAME "a.out-i386"
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| 48 | #define NO_WRITE_HEADER_KLUDGE 1
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| 49 |
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| 50 | #include "bfd.h"
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| 51 | #include "sysdep.h"
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| 52 | #include "libbfd.h"
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| 53 | #include "aout/aout64.h"
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| 54 | #include "libaout.h"
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| 55 |
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| 56 | static bfd_boolean i386aout_write_object_contents PARAMS ((bfd *));
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| 57 | static bfd_boolean MY (set_sizes) PARAMS ((bfd *));
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| 58 |
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| 59 | /* Set the machine type correctly. */
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| 60 |
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| 61 | static bfd_boolean
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| 62 | i386aout_write_object_contents (abfd)
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| 63 | bfd *abfd;
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| 64 | {
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| 65 | struct external_exec exec_bytes;
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| 66 | struct internal_exec *execp = exec_hdr (abfd);
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| 67 |
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| 68 | N_SET_MACHTYPE (*execp, M_386);
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| 69 |
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| 70 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
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| 71 |
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| 72 | WRITE_HEADERS (abfd, execp);
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| 73 |
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| 74 | return TRUE;
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| 75 | }
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| 76 |
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| 77 | #define MY_write_object_contents i386aout_write_object_contents
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| 78 |
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| 79 | #define MY_backend_data &MY(backend_data)
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| 80 | static const struct aout_backend_data MY(backend_data) = {
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| 81 | 0, /* zmagic contiguous */
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| 82 | 1, /* text incl header */
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| 83 | 0, /* entry is text address */
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| 84 | 0, /* exec_hdr_flags */
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| 85 | 0, /* text vma? */
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| 86 | MY(set_sizes),
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| 87 | 1, /* exec header not counted */
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| 88 | 0, /* add_dynamic_symbols */
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| 89 | 0, /* add_one_symbol */
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| 90 | 0, /* link_dynamic_object */
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| 91 | 0, /* write_dynamic_symbol */
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| 92 | 0, /* check_dynamic_reloc */
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| 93 | 0 /* finish_dynamic_link */
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| 94 | };
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| 95 |
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| 96 | #include "aout-target.h"
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