1/* BFD back-end for i386 a.out binaries under dynix.
2   Copyright 1994, 1995, 2001, 2003 Free Software Foundation, Inc.
3
4This file is part of BFD, the Binary File Descriptor library.
5
6This program is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2 of the License, or
9(at your option) any later version.
10
11This program is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with this program; if not, write to the Free Software
18Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
19
20/* This BFD is currently only tested with gdb, writing object files
21   may not work.  */
22
23#define TEXT_START_ADDR 4096
24#define TARGET_PAGE_SIZE	4096
25#define SEGMENT_SIZE	TARGET_PAGE_SIZE
26
27#include "aout/dynix3.h"
28
29#define DEFAULT_ARCH	bfd_arch_i386
30#define MACHTYPE_OK(mtype) ((mtype) == M_386 || (mtype) == M_UNKNOWN)
31
32/* Do not "beautify" the CONCAT* macro args.  Traditional C will not
33   remove whitespace added here, and thus will fail to concatenate
34   the tokens.  */
35#define MY(OP) CONCAT2 (i386dynix_,OP)
36#define TARGETNAME "a.out-i386-dynix"
37#define NAME(x,y) CONCAT3 (i386dynix,_32_,y)
38#define ARCH_SIZE 32
39#define NAME_swap_exec_header_in NAME(i386dynix_32_,swap_exec_header_in)
40#define MY_get_section_contents aout_32_get_section_contents
41
42/* aoutx.h requires definitions for NMAGIC, BMAGIC and QMAGIC.  */
43#define NMAGIC 0
44#define BMAGIC OMAGIC
45#define QMAGIC XMAGIC
46
47#include "aoutx.h"
48
49/* (Ab)use some fields in the internal exec header to be able to read
50   executables that contain shared data.  */
51
52#define a_shdata a_tload
53#define a_shdrsize a_dload
54
55void
56i386dynix_32_swap_exec_header_in (abfd, raw_bytes, execp)
57     bfd *abfd;
58     struct external_exec *raw_bytes;
59     struct internal_exec *execp;
60{
61  struct external_exec *bytes = (struct external_exec *)raw_bytes;
62
63  /* The internal_exec structure has some fields that are unused in this
64     configuration (IE for i960), so ensure that all such uninitialized
65     fields are zero'd out.  There are places where two of these structs
66     are memcmp'd, and thus the contents do matter. */
67  memset ((PTR) execp, 0, sizeof (struct internal_exec));
68  /* Now fill in fields in the execp, from the bytes in the raw data.  */
69  execp->a_info   = H_GET_32 (abfd, bytes->e_info);
70  execp->a_text   = GET_WORD (abfd, bytes->e_text);
71  execp->a_data   = GET_WORD (abfd, bytes->e_data);
72  execp->a_bss    = GET_WORD (abfd, bytes->e_bss);
73  execp->a_syms   = GET_WORD (abfd, bytes->e_syms);
74  execp->a_entry  = GET_WORD (abfd, bytes->e_entry);
75  execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
76  execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
77  execp->a_shdata = GET_WORD (abfd, bytes->e_shdata);
78  execp->a_shdrsize = GET_WORD (abfd, bytes->e_shdrsize);
79}
80
81#include "aout-target.h"
82