[deliverable/binutils-gdb.git] / bfd / i386aout.c

/* BFD back-end for i386 a.out binaries.
   Copyright 1990, 1991, 1992, 1994, 1996, 1997, 2001, 2002, 2003
   Free Software Foundation, Inc.

This file is part of BFD, the Binary File Descriptor library.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */


/* The only 386 aout system we have here is GO32 from DJ.
   These numbers make BFD work with that. If your aout 386 system
   doesn't work with these, we'll have to split them into different
   files.  Send me (sac@cygnus.com) the runes to make it work on your
   system, and I'll stick it in for the next release.  */

#define N_HEADER_IN_TEXT(x) 0

#define N_TXTOFF(x) 0x20
#define N_TXTADDR(x) (N_MAGIC(x)==ZMAGIC ? 0x1020 : 0)

#define N_TXTSIZE(x) ((x).a_text)
#if 0
#define N_DATADDR(x) (N_MAGIC(x)==OMAGIC? (N_TXTADDR(x)+(x).a_text) : (SEGMENT_SIZE + ((0x1020+(x).a_text-1) & ~(SEGMENT_SIZE-1))))
#define NOSUBEXECB

#endif
#define TARGET_PAGE_SIZE 4096
#define SEGMENT_SIZE 0x400000
#define DEFAULT_ARCH bfd_arch_i386

/* Do not "beautify" the CONCAT* macro args.  Traditional C will not
   remove whitespace added here, and thus will fail to concatenate
   the tokens.  */
#define MY(OP) CONCAT2 (i386aout_,OP)
#define TARGETNAME "a.out-i386"
#define NO_WRITE_HEADER_KLUDGE 1

#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "aout/aout64.h"
#include "libaout.h"

static bfd_boolean i386aout_write_object_contents PARAMS ((bfd *));
static bfd_boolean MY (set_sizes) PARAMS ((bfd *));

/* Set the machine type correctly.  */

static bfd_boolean
i386aout_write_object_contents (abfd)
     bfd *abfd;
{
  struct external_exec exec_bytes;
  struct internal_exec *execp = exec_hdr (abfd);

  N_SET_MACHTYPE (*execp, M_386);

  obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;

  WRITE_HEADERS (abfd, execp);

  return TRUE;
}

#define MY_write_object_contents i386aout_write_object_contents

#define MY_backend_data &MY(backend_data)
static const struct aout_backend_data MY(backend_data) = {
  0,				/* zmagic contiguous */
  1,				/* text incl header */
  0,				/* entry is text address */
  0,				/* exec_hdr_flags */
  0,				/* text vma? */
  MY(set_sizes),
  1,				/* exec header not counted */
  0,				/* add_dynamic_symbols */
  0,				/* add_one_symbol */
  0,				/* link_dynamic_object */
  0,				/* write_dynamic_symbol */
  0,				/* check_dynamic_reloc */
  0				/* finish_dynamic_link */
};

#include "aout-target.h"
Commit	Line	Data
252b5132	1	/* BFD back-end for i386 a.out binaries.
93516ec3	2	Copyright 1990, 1991, 1992, 1994, 1996, 1997, 2001, 2002, 2003
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
252b5132 RH	29
	30	#define N_TXTOFF(x) 0x20
	31	#define N_TXTADDR(x) (N_MAGIC(x)==ZMAGIC ? 0x1020 : 0)
	32
	33	#define N_TXTSIZE(x) ((x).a_text)
	34	#if 0
	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))))
	36	#define NOSUBEXECB
	37
	38	#endif
	39	#define TARGET_PAGE_SIZE 4096
	40	#define SEGMENT_SIZE 0x400000
	41	#define DEFAULT_ARCH bfd_arch_i386
	42
e43d48cc AM	43	/* Do not "beautify" the CONCAT* macro args. Traditional C will not
	44	remove whitespace added here, and thus will fail to concatenate
	45	the tokens. */
	46	#define MY(OP) CONCAT2 (i386aout_,OP)
252b5132 RH	47	#define TARGETNAME "a.out-i386"
	48	#define NO_WRITE_HEADER_KLUDGE 1
	49
	50	#include "bfd.h"
	51	#include "sysdep.h"
	52	#include "libbfd.h"
	53	#include "aout/aout64.h"
	54	#include "libaout.h"
	55
b34976b6 AM	56	static bfd_boolean i386aout_write_object_contents PARAMS ((bfd *));
b34976b6 AM	57	static bfd_boolean MY (set_sizes) PARAMS ((bfd *));
e4b17274	58
252b5132 RH	59	/* Set the machine type correctly. */
252b5132 RH	60
b34976b6	61	static bfd_boolean
252b5132 RH	62	i386aout_write_object_contents (abfd)
	63	bfd *abfd;
	64	{
	65	struct external_exec exec_bytes;
	66	struct internal_exec *execp = exec_hdr (abfd);
	67
	68	N_SET_MACHTYPE (*execp, M_386);
	69
	70	obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
	71
	72	WRITE_HEADERS (abfd, execp);
	73
b34976b6	74	return TRUE;
252b5132 RH	75	}
	76
	77	#define MY_write_object_contents i386aout_write_object_contents
	78
252b5132	79	#define MY_backend_data &MY(backend_data)
dc810e39	80	static const struct aout_backend_data MY(backend_data) = {
252b5132 RH	81	0, /* zmagic contiguous */
	82	1, /* text incl header */
	83	0, /* entry is text address */
	84	0, /* exec_hdr_flags */
	85	0, /* text vma? */
	86	MY(set_sizes),
	87	1, /* exec header not counted */
	88	0, /* add_dynamic_symbols */
	89	0, /* add_one_symbol */
	90	0, /* link_dynamic_object */
	91	0, /* write_dynamic_symbol */
	92	0, /* check_dynamic_reloc */
	93	0 /* finish_dynamic_link */
	94	};
	95
	96	#include "aout-target.h"