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/* BFD back-end for i386 a.out binaries.
Copyright (C) 1990, 1991 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define PAGE_SIZE 4096
#define SEGMENT_SIZE PAGE_SIZE
#define TEXT_START_ADDR 0x8000
#define ARCH 32
#define BYTES_IN_WORD 4
#include <ansidecl.h>
#include <sysdep.h>
#include "bfd.h"
#include "libbfd.h"
#include "aout64.h"
/**From: bothner@cs.wisc.edu***********************************************/
#undef N_TXTOFF
#define N_TXTOFF(x) ( (N_MAGIC((x)) == ZMAGIC) ? PAGE_SIZE : EXEC_BYTES_SIZE)
/**************************************************************************/
#include "stab.gnu.h"
#include "ar.h"
#include "libaout.h" /* BFD a.out internal data structures */
bfd_target *aout386_callback ();
bfd_target *
DEFUN(aout386_object_p,(abfd),
bfd *abfd)
{
struct external_exec exec_bytes;
struct internal_exec exec;
if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
!= EXEC_BYTES_SIZE) {
bfd_error = wrong_format;
return 0;
}
exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info);
if (N_BADMAG (exec)) return 0;
NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &exec);
return aout_32_some_aout_object_p (abfd, &exec, aout386_callback);
}
/* Finish up the reading of the file header */
bfd_target *
DEFUN(aout386_callback,(abfd),
bfd *abfd)
{
struct internal_exec *execp = exec_hdr (abfd);
WORK_OUT_FILE_POSITIONS(abfd, execp) ;
/* Determine the architecture and machine type of the object file. */
bfd_default_set_arch_mach(abfd, bfd_arch_i386, 0);
return abfd->xvec;
}
/* Write an object file.
Section contents have already been written. We write the
file header, symbols, and relocation. */
boolean
DEFUN(aout386_write_object_contents,(abfd),
bfd *abfd)
{
bfd_size_type data_pad = 0;
struct external_exec exec_bytes;
struct internal_exec *execp = exec_hdr (abfd);
WRITE_HEADERS(abfd, execp);
return true;
}
/* Transfer vector */
/* We use BSD archive files. */
#define aout386_openr_next_archived_file bfd_generic_openr_next_archived_file
#define aout386_generic_stat_arch_elt bfd_generic_stat_arch_elt
#define aout386_slurp_armap bfd_slurp_bsd_armap
#define aout386_slurp_extended_name_table bfd_true
#define aout386_write_armap bsd_write_armap
#define aout386_truncate_arname bfd_bsd_truncate_arname
/* We don't support core files here. */
#define aout386_core_file_failing_command _bfd_dummy_core_file_failing_command
#define aout386_core_file_failing_signal _bfd_dummy_core_file_failing_signal
#define aout386_core_file_matches_executable_p \
_bfd_dummy_core_file_matches_executable_p
#define aout386_core_file_p _bfd_dummy_target
#define aout386_bfd_debug_info_start bfd_void
#define aout386_bfd_debug_info_end bfd_void
#define aout386_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
#define aout386_mkobject aout_32_mkobject
#define aout386_close_and_cleanup aout_32_close_and_cleanup
#define aout386_set_section_contents aout_32_set_section_contents
#define aout386_get_section_contents aout_32_get_section_contents
#define aout386_new_section_hook aout_32_new_section_hook
#define aout386_get_symtab_upper_bound aout_32_get_symtab_upper_bound
#define aout386_get_symtab aout_32_get_symtab
#define aout386_get_reloc_upper_bound aout_32_get_reloc_upper_bound
#define aout386_canonicalize_reloc aout_32_canonicalize_reloc
#define aout386_make_empty_symbol aout_32_make_empty_symbol
#define aout386_print_symbol aout_32_print_symbol
#define aout386_get_lineno aout_32_get_lineno
#define aout386_set_arch_mach aout_32_set_arch_mach
#define aout386_find_nearest_line aout_32_find_nearest_line
#define aout386_sizeof_headers aout_32_sizeof_headers
bfd_target i386aout_vec = /* Intel 386 running a.out, embedded. */
{
"a.out-i386", /* name */
bfd_target_aout_flavour,
false, /* target byte order */
false, /* target headers byte order */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
' ', /* ar_pad_char */
16, /* ar_max_namelen */
1, /* minimum alignment */
/* data swap routines */
_do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16,
/* header swap routines */
_do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16,
{_bfd_dummy_target, aout386_object_p, /* bfd_check_format */
bfd_generic_archive_p, aout386_core_file_p},
{bfd_false, aout386_mkobject, /* bfd_set_format */
_bfd_generic_mkarchive, bfd_false},
{bfd_false, aout386_write_object_contents, /* bfd_write_contents */
_bfd_write_archive_contents, bfd_false},
JUMP_TABLE(aout386)
};
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