/* BFD back-end for i386 a.out binaries.
- Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992, 1994, 1996, 1997, 2001, 2002
+ Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
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. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-#define PAGE_SIZE 4096
-#define SEGMENT_SIZE PAGE_SIZE
-#define TEXT_START_ADDR 0x8000
-#define ARCH 32
+
+/* 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 BYTES_IN_WORD 4
-#include "bfd.h"
-#include "sysdep.h"
-#include "libbfd.h"
-#include "aout64.h"
-#include "stab.gnu.h"
-#include "ar.h"
-#include "libaout.h" /* BFD a.out internal data structures */
+#define N_TXTOFF(x) 0x20
+#define N_TXTADDR(x) (N_MAGIC(x)==ZMAGIC ? 0x1020 : 0)
-bfd_target *aout386_callback ();
+#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
-bfd_target *
-DEFUN(aout386_object_p,(abfd),
- bfd *abfd)
-{
- struct external_exec exec_bytes;
- struct internal_exec exec;
+#endif
+#define TARGET_PAGE_SIZE 4096
+#define SEGMENT_SIZE 0x400000
+#define DEFAULT_ARCH bfd_arch_i386
- if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
- != EXEC_BYTES_SIZE) {
- bfd_error = wrong_format;
- return 0;
- }
+/* 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
- exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info);
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "aout/aout64.h"
+#include "libaout.h"
- if (N_BADMAG (exec)) return 0;
+static bfd_boolean i386aout_write_object_contents PARAMS ((bfd *));
+static bfd_boolean MY (set_sizes) PARAMS ((bfd *));
- NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &exec);
- return aout_32_some_aout_object_p (abfd, &exec, aout386_callback);
-}
+/* Set the machine type correctly. */
-/* Finish up the reading of the file header */
-bfd_target *
-DEFUN(aout386_callback,(abfd),
- bfd *abfd)
+static bfd_boolean
+i386aout_write_object_contents (abfd)
+ bfd *abfd;
{
+ struct external_exec exec_bytes;
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;
-}
+ N_SET_MACHTYPE (*execp, M_386);
-/* Write an object file.
- Section contents have already been written. We write the
- file header, symbols, and relocation. */
+ obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
-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);
- WRITE_HEADERS(abfd, execp);
- return true;
+ return TRUE;
}
-\f
-/* 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)
+
+#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"
projects / deliverable / binutils-gdb.git / blobdiff