208 lines
6.3 KiB
C
208 lines
6.3 KiB
C
/*** bfd backend for NewsOS3 (Sony, 68k) binaries */
|
||
|
||
/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
|
||
|
||
This file is part of BFD, the Binary File Diddler.
|
||
|
||
BFD 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 1, or (at your option)
|
||
any later version.
|
||
|
||
BFD 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 BFD; see the file COPYING. If not, write to
|
||
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||
|
||
#define TARGET_BYTE_ORDER_BIG_P 1
|
||
|
||
#include <ansidecl.h>
|
||
#include "sysdep.h"
|
||
#include "bfd.h"
|
||
#include "libbfd.h"
|
||
|
||
int vfprintf(file, format, args) /* Temporary crock! */
|
||
FILE *file; char *format; char *args;
|
||
{
|
||
return _doprnt (format, args, file);
|
||
}
|
||
|
||
#define PAGE_SIZE 4096
|
||
#define SEGMENT_SIZE 0x2000 /* FIXME, is this right?? */
|
||
#define TEXT_START_ADDR PAGE_SIZE
|
||
|
||
#include "a.out.gnu.h"
|
||
#include "stab.gnu.h"
|
||
#include "ar.h"
|
||
#include "liba.out.h" /* BFD a.out internal data structures */
|
||
|
||
bfd_target *newsos3_callback ();
|
||
|
||
bfd_target *
|
||
newsos3_object_p (abfd)
|
||
bfd *abfd;
|
||
{
|
||
unsigned char magicbuf[LONG_SIZE]; /* Raw bytes of magic number from file */
|
||
unsigned long magic; /* Swapped magic number */
|
||
|
||
bfd_error = system_call_error;
|
||
|
||
if (bfd_read ((PTR)magicbuf, 1, sizeof (magicbuf), abfd) !=
|
||
sizeof (magicbuf))
|
||
return 0;
|
||
magic = bfd_h_getlong (abfd, magicbuf);
|
||
|
||
if (N_BADMAG (*((struct exec *) &magic))) return 0;
|
||
|
||
return some_aout_object_p (abfd, newsos3_callback);
|
||
}
|
||
|
||
/* Finish up the reading of a NEWS-OS a.out file header */
|
||
bfd_target *
|
||
newsos3_callback (abfd)
|
||
bfd *abfd;
|
||
{
|
||
struct exec *execp = exec_hdr (abfd);
|
||
|
||
/* The virtual memory addresses of the sections */
|
||
obj_datasec (abfd)->vma = N_DATADDR(*execp);
|
||
obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
|
||
obj_textsec (abfd)->vma = N_TXTADDR(*execp);
|
||
|
||
/* The file offsets of the sections */
|
||
obj_textsec (abfd)->filepos = N_TXTOFF(*execp);
|
||
obj_datasec (abfd)->filepos = N_DATOFF(*execp);
|
||
|
||
/* The file offsets of the relocation info */
|
||
obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
|
||
obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
|
||
|
||
/* The file offsets of the string table and symbol table. */
|
||
obj_str_filepos (abfd) = N_STROFF (*execp);
|
||
obj_sym_filepos (abfd) = N_SYMOFF (*execp);
|
||
|
||
/* Determine the architecture and machine type of the object file. */
|
||
abfd->obj_arch = bfd_arch_m68k;
|
||
abfd->obj_machine = 0;
|
||
|
||
return abfd->xvec;
|
||
}
|
||
|
||
/* Write an object file in NEWS-OS format.
|
||
Section contents have already been written. We write the
|
||
file header, symbols, and relocation. */
|
||
|
||
boolean
|
||
newsos3_write_object_contents (abfd)
|
||
bfd *abfd;
|
||
{
|
||
size_t data_pad = 0;
|
||
unsigned char exec_bytes[EXEC_BYTES_SIZE];
|
||
struct exec *execp = exec_hdr (abfd);
|
||
|
||
execp->a_text = obj_textsec (abfd)->size;
|
||
|
||
if (abfd->flags & D_PAGED)
|
||
execp->a_info = ZMAGIC;
|
||
else if (abfd->flags & WP_TEXT)
|
||
execp->a_info = NMAGIC;
|
||
else
|
||
execp->a_info = OMAGIC;
|
||
|
||
if (abfd->flags & D_PAGED)
|
||
{
|
||
data_pad = ((obj_datasec(abfd)->size + PAGE_SIZE -1)
|
||
& (- PAGE_SIZE)) - obj_datasec(abfd)->size;
|
||
|
||
if (data_pad > obj_bsssec(abfd)->size)
|
||
execp->a_bss = 0;
|
||
else
|
||
execp->a_bss = obj_bsssec(abfd)->size - data_pad;
|
||
execp->a_data = obj_datasec(abfd)->size + data_pad;
|
||
|
||
}
|
||
else {
|
||
execp->a_data = obj_datasec (abfd)->size;
|
||
execp->a_bss = obj_bsssec (abfd)->size;
|
||
}
|
||
|
||
execp->a_syms = bfd_get_symcount (abfd) * sizeof (struct nlist);
|
||
execp->a_entry = bfd_get_start_address (abfd);
|
||
|
||
execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *
|
||
obj_reloc_entry_size (abfd));
|
||
|
||
execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *
|
||
obj_reloc_entry_size (abfd));
|
||
|
||
bfd_aout_swap_exec_header_out (abfd, execp, exec_bytes);
|
||
|
||
bfd_seek (abfd, 0L, false);
|
||
bfd_write ((PTR) exec_bytes, 1, EXEC_BYTES_SIZE, abfd);
|
||
|
||
/* Now write out reloc info, followed by syms and strings */
|
||
|
||
if (bfd_get_symcount (abfd) != 0)
|
||
{
|
||
bfd_seek (abfd, (long)(N_SYMOFF(*execp)), false);
|
||
aout_write_syms (abfd);
|
||
|
||
bfd_seek (abfd, (long)(N_TRELOFF(*execp)), false);
|
||
if (!aout_squirt_out_relocs (abfd, obj_textsec (abfd))) return false;
|
||
|
||
bfd_seek (abfd, (long)(N_DRELOFF(*execp)), false);
|
||
if (!aout_squirt_out_relocs (abfd, obj_datasec (abfd))) return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
/* Transfer vectors for NEWS-OS version 3 */
|
||
|
||
/* We use BFD generic archive files. */
|
||
#define aout_openr_next_archived_file bfd_generic_openr_next_archived_file
|
||
#define aout_generic_stat_arch_elt bfd_generic_stat_arch_elt
|
||
#define aout_slurp_armap bfd_slurp_bsd_armap
|
||
#define aout_slurp_extended_name_table bfd_true
|
||
#define aout_write_armap bsd_write_armap
|
||
#define aout_truncate_arname bfd_bsd_truncate_arname
|
||
|
||
/* We don't support core files yet. FIXME. */
|
||
#define aout_core_file_failing_command _bfd_dummy_core_file_failing_command
|
||
#define aout_core_file_failing_signal _bfd_dummy_core_file_failing_signal
|
||
#define aout_core_file_matches_executable_p \
|
||
_bfd_dummy_core_file_matches_executable_p
|
||
#define aout_core_file_p _bfd_dummy_target
|
||
|
||
/* We define our own versions of these routines. */
|
||
|
||
|
||
bfd_target newsos3_vec = /* Sony 68k-based machines running newos3 */
|
||
{
|
||
"a.out-newos3", /* name */
|
||
bfd_target_aout_flavour_enum,
|
||
true, /* target byte order */
|
||
true, /* 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 */
|
||
|
||
_do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* data */
|
||
_do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* hdrs */
|
||
|
||
{_bfd_dummy_target, newsos3_object_p, /* bfd_check_format */
|
||
bfd_generic_archive_p, aout_core_file_p},
|
||
{bfd_false, aout_mkobject, /* bfd_set_format */
|
||
_bfd_generic_mkarchive, bfd_false},
|
||
{bfd_false, newsos3_write_object_contents, /* bfd_write_contents */
|
||
_bfd_write_archive_contents, bfd_false},
|
||
|
||
JUMP_TABLE(aout)
|
||
};
|