projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 252b5132 | 1 | /* BFD back-end for i386 a.out binaries. |
| e4b17274 | 2 | Copyright 1990, 1991, 1992, 1994, 1996, 1997, 2001 |
| 7898deda | 3 | Free Software Foundation, Inc. |
| 252b5132 RH |
4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. | |
| 6 | ||
| 7 | This program is free software; you can redistribute it and/or modify | |
| 8 | it under the terms of the GNU General Public License as published by | |
| 9 | the Free Software Foundation; either version 2 of the License, or | |
| 10 | (at your option) any later version. | |
| 11 | ||
| 12 | This program is distributed in the hope that it will be useful, | |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | GNU General Public License for more details. | |
| 16 | ||
| 17 | You should have received a copy of the GNU General Public License | |
| 18 | along with this program; if not, write to the Free Software | |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | ||
| dc810e39 | 22 | /* The only 386 aout system we have here is GO32 from DJ. |
| 252b5132 RH |
23 | These numbers make BFD work with that. If your aout 386 system |
| 24 | doesn't work with these, we'll have to split them into different | |
| 25 | files. Send me (sac@cygnus.com) the runes to make it work on your | |
| 26 | system, and I'll stick it in for the next release. */ | |
| 27 | ||
| 28 | #define N_HEADER_IN_TEXT(x) 0 | |
| 29 | #define BYTES_IN_WORD 4 | |
| 30 | ||
| 31 | #define N_TXTOFF(x) 0x20 | |
| 32 | #define N_TXTADDR(x) (N_MAGIC(x)==ZMAGIC ? 0x1020 : 0) | |
| 33 | ||
| 34 | #define N_TXTSIZE(x) ((x).a_text) | |
| 35 | #if 0 | |
| 36 | #define N_DATADDR(x) (N_MAGIC(x)==OMAGIC? (N_TXTADDR(x)+(x).a_text) : (SEGMENT_SIZE + ((0x1020+(x).a_text-1) & ~(SEGMENT_SIZE-1)))) | |
| 37 | #define NOSUBEXECB | |
| 38 | ||
| 39 | #endif | |
| 40 | #define TARGET_PAGE_SIZE 4096 | |
| 41 | #define SEGMENT_SIZE 0x400000 | |
| 42 | #define DEFAULT_ARCH bfd_arch_i386 | |
| 43 | ||
| 44 | #define MY(OP) CAT(i386aout_,OP) | |
| 45 | #define TARGETNAME "a.out-i386" | |
| 46 | #define NO_WRITE_HEADER_KLUDGE 1 | |
| 47 | ||
| 48 | #include "bfd.h" | |
| 49 | #include "sysdep.h" | |
| 50 | #include "libbfd.h" | |
| 51 | #include "aout/aout64.h" | |
| 52 | #include "libaout.h" | |
| 53 | ||
| e4b17274 NC |
54 | static boolean i386aout_write_object_contents PARAMS ((bfd *)); |
| 55 | static boolean MY (set_sizes) PARAMS ((bfd *)); | |
| 56 | ||
| 252b5132 RH |
57 | /* Set the machine type correctly. */ |
| 58 | ||
| 59 | static boolean | |
| 60 | i386aout_write_object_contents (abfd) | |
| 61 | bfd *abfd; | |
| 62 | { | |
| 63 | struct external_exec exec_bytes; | |
| 64 | struct internal_exec *execp = exec_hdr (abfd); | |
| 65 | ||
| 66 | N_SET_MACHTYPE (*execp, M_386); | |
| 67 | ||
| 68 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; | |
| 69 | ||
| 70 | WRITE_HEADERS (abfd, execp); | |
| 71 | ||
| 72 | return true; | |
| 73 | } | |
| 74 | ||
| 75 | #define MY_write_object_contents i386aout_write_object_contents | |
| 76 | ||
| 252b5132 | 77 | #define MY_backend_data &MY(backend_data) |
| dc810e39 | 78 | static const struct aout_backend_data MY(backend_data) = { |
| 252b5132 RH |
79 | 0, /* zmagic contiguous */ |
| 80 | 1, /* text incl header */ | |
| 81 | 0, /* entry is text address */ | |
| 82 | 0, /* exec_hdr_flags */ | |
| 83 | 0, /* text vma? */ | |
| 84 | MY(set_sizes), | |
| 85 | 1, /* exec header not counted */ | |
| 86 | 0, /* add_dynamic_symbols */ | |
| 87 | 0, /* add_one_symbol */ | |
| 88 | 0, /* link_dynamic_object */ | |
| 89 | 0, /* write_dynamic_symbol */ | |
| 90 | 0, /* check_dynamic_reloc */ | |
| 91 | 0 /* finish_dynamic_link */ | |
| 92 | }; | |
| 93 | ||
| 94 | #include "aout-target.h" |