/* Define a target vector and some small routines for a variant of a.out.
- Copyright (C) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
+ 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. */
#include "aout/aout64.h"
#include "aout/stab_gnu.h"
#include "aout/ar.h"
/*#include "libaout.h"*/
-extern CONST struct reloc_howto_struct * NAME(aout,reloc_type_lookup) ();
+#ifndef SEGMENT_SIZE
+#define SEGMENT_SIZE TARGET_PAGE_SIZE
+#endif
+
+extern reloc_howto_type * NAME(aout,reloc_type_lookup)
+ PARAMS ((bfd *, bfd_reloc_code_real_type));
/* Set parameters about this a.out file that are machine-dependent.
This routine is called from some_aout_object_p just before it returns. */
#ifndef MY_callback
-static bfd_target *
+
+static const bfd_target *MY(callback) PARAMS ((bfd *));
+
+static const bfd_target *
MY(callback) (abfd)
bfd *abfd;
{
struct internal_exec *execp = exec_hdr (abfd);
+ unsigned int arch_align_power;
+ unsigned long arch_align;
/* Calculate the file positions of the parts of a newly read aout header */
obj_textsec (abfd)->_raw_size = N_TXTSIZE(*execp);
obj_datasec (abfd)->vma = N_DATADDR(*execp);
obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
+ /* For some targets, if the entry point is not in the same page
+ as the start of the text, then adjust the VMA so that it is.
+ FIXME: Do this with a macro like SET_ARCH_MACH instead? */
+ if (aout_backend_info (abfd)->entry_is_text_address
+ && execp->a_entry > obj_textsec (abfd)->vma)
+ {
+ bfd_vma adjust;
+
+ adjust = execp->a_entry - obj_textsec (abfd)->vma;
+ /* Adjust only by whole pages. */
+ adjust &= ~(TARGET_PAGE_SIZE - 1);
+ obj_textsec (abfd)->vma += adjust;
+ obj_datasec (abfd)->vma += adjust;
+ obj_bsssec (abfd)->vma += adjust;
+ }
+
+ /* Set the load addresses to be the same as the virtual addresses. */
+ obj_textsec (abfd)->lma = obj_textsec (abfd)->vma;
+ obj_datasec (abfd)->lma = obj_datasec (abfd)->vma;
+ obj_bsssec (abfd)->lma = obj_bsssec (abfd)->vma;
+
/* 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 string table and symbol table. */
obj_sym_filepos (abfd) = N_SYMOFF (*execp);
obj_str_filepos (abfd) = N_STROFF (*execp);
-
+
/* Determine the architecture and machine type of the object file. */
#ifdef SET_ARCH_MACH
SET_ARCH_MACH(abfd, *execp);
bfd_default_set_arch_mach(abfd, DEFAULT_ARCH, 0);
#endif
+ /* The number of relocation records. This must be called after
+ SET_ARCH_MACH. It assumes that SET_ARCH_MACH will set
+ obj_reloc_entry_size correctly, if the reloc size is not
+ RELOC_STD_SIZE. */
+ obj_textsec (abfd)->reloc_count =
+ execp->a_trsize / obj_reloc_entry_size (abfd);
+ obj_datasec (abfd)->reloc_count =
+ execp->a_drsize / obj_reloc_entry_size (abfd);
+
/* Now that we know the architecture, set the alignments of the
sections. This is normally done by NAME(aout,new_section_hook),
but when the initial sections were created the architecture had
- not yet been set. */
- obj_textsec (abfd)->alignment_power =
- obj_datasec (abfd)->alignment_power =
- obj_bsssec (abfd)->alignment_power =
- bfd_get_arch_info (abfd)->section_align_power;
+ not yet been set. However, for backward compatibility, we don't
+ set the alignment power any higher than as required by the size
+ of the section. */
+ arch_align_power = bfd_get_arch_info (abfd)->section_align_power;
+ arch_align = 1 << arch_align_power;
+ if ((BFD_ALIGN (obj_textsec (abfd)->_raw_size, arch_align)
+ == obj_textsec (abfd)->_raw_size)
+ && (BFD_ALIGN (obj_datasec (abfd)->_raw_size, arch_align)
+ == obj_datasec (abfd)->_raw_size)
+ && (BFD_ALIGN (obj_bsssec (abfd)->_raw_size, arch_align)
+ == obj_bsssec (abfd)->_raw_size))
+ {
+ obj_textsec (abfd)->alignment_power = arch_align_power;
+ obj_datasec (abfd)->alignment_power = arch_align_power;
+ obj_bsssec (abfd)->alignment_power = arch_align_power;
+ }
/* Don't set sizes now -- can't be sure until we know arch & mach.
Sizes get set in set_sizes callback, later. */
#if 0
- adata(abfd).page_size = PAGE_SIZE;
-#ifdef SEGMENT_SIZE
+ adata(abfd).page_size = TARGET_PAGE_SIZE;
adata(abfd).segment_size = SEGMENT_SIZE;
-#else
- adata(abfd).segment_size = PAGE_SIZE;
-#endif
adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
#endif
#ifndef MY_object_p
/* Finish up the reading of an a.out file header */
-static bfd_target *
+static const bfd_target *MY(object_p) PARAMS ((bfd *));
+
+static const bfd_target *
MY(object_p) (abfd)
bfd *abfd;
{
struct external_exec exec_bytes; /* Raw exec header from file */
struct internal_exec exec; /* Cleaned-up exec header */
- bfd_target *target;
+ const bfd_target *target;
if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
!= EXEC_BYTES_SIZE) {
if (!(MACHTYPE_OK (N_MACHTYPE (exec)))) return 0;
#endif
- NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &exec);
+ NAME(aout,swap_exec_header_in) (abfd, &exec_bytes, &exec);
+
+#ifdef SWAP_MAGIC
+ /* swap_exec_header_in read in a_info with the wrong byte order */
+ exec.a_info = SWAP_MAGIC (exec_bytes.e_info);
+#endif /* SWAP_MAGIC */
+
target = NAME(aout,some_aout_object_p) (abfd, &exec, MY(callback));
#ifdef ENTRY_CAN_BE_ZERO
* means that it isn't obvious if EXEC_P should be set.
* All of the following must be true for an executable:
* There must be no relocations, the bfd can be neither an
- * archive nor an archive element, and the file must be executable. */
+ * archive nor an archive element, and the file must be executable. */
if (exec.a_trsize + exec.a_drsize == 0
&& bfd_get_format(abfd) == bfd_object && abfd->my_archive == NULL)
#define MY_object_p MY(object_p)
#endif
-
#ifndef MY_mkobject
+
+static boolean MY(mkobject) PARAMS ((bfd *));
+
static boolean
MY(mkobject) (abfd)
bfd *abfd;
{
- if (NAME(aout,mkobject)(abfd) == false)
+ if (NAME(aout,mkobject) (abfd) == false)
return false;
#if 0 /* Sizes get set in set_sizes callback, later, after we know
the architecture and machine. */
- adata(abfd).page_size = PAGE_SIZE;
-#ifdef SEGMENT_SIZE
+ adata(abfd).page_size = TARGET_PAGE_SIZE;
adata(abfd).segment_size = SEGMENT_SIZE;
-#else
- adata(abfd).segment_size = PAGE_SIZE;
-#endif
adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
#endif
return true;
section contents, and copy_private_bfd_data is not called until
after the section contents have been set. */
-/*ARGSUSED*/
+static boolean MY_bfd_copy_private_section_data
+ PARAMS ((bfd *, asection *, bfd *, asection *));
+
static boolean
MY_bfd_copy_private_section_data (ibfd, isec, obfd, osec)
bfd *ibfd;
- asection *isec;
+ asection *isec ATTRIBUTE_UNUSED;
bfd *obfd;
- asection *osec;
+ asection *osec ATTRIBUTE_UNUSED;
{
- obj_aout_subformat (obfd) = obj_aout_subformat (ibfd);
+ if (bfd_get_flavour (ibfd) == bfd_target_aout_flavour
+ && bfd_get_flavour (obfd) == bfd_target_aout_flavour)
+ obj_aout_subformat (obfd) = obj_aout_subformat (ibfd);
return true;
}
struct external_exec exec_bytes;
struct internal_exec *execp = exec_hdr (abfd);
-#if CHOOSE_RELOC_SIZE
- CHOOSE_RELOC_SIZE(abfd);
-#else
obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
-#endif
WRITE_HEADERS(abfd, execp);
#endif
#ifndef MY_set_sizes
+
+static boolean MY(set_sizes) PARAMS ((bfd *));
+
static boolean
MY(set_sizes) (abfd)
bfd *abfd;
{
- adata(abfd).page_size = PAGE_SIZE;
-#ifdef SEGMENT_SIZE
+ adata(abfd).page_size = TARGET_PAGE_SIZE;
adata(abfd).segment_size = SEGMENT_SIZE;
+
+#ifdef ZMAGIC_DISK_BLOCK_SIZE
+ adata(abfd).zmagic_disk_block_size = ZMAGIC_DISK_BLOCK_SIZE;
#else
- adata(abfd).segment_size = PAGE_SIZE;
+ adata(abfd).zmagic_disk_block_size = TARGET_PAGE_SIZE;
#endif
+
adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
return true;
}
#ifndef MY_backend_data
+#ifndef MY_zmagic_contiguous
+#define MY_zmagic_contiguous 0
+#endif
#ifndef MY_text_includes_header
#define MY_text_includes_header 0
#endif
+#ifndef MY_entry_is_text_address
+#define MY_entry_is_text_address 0
+#endif
+#ifndef MY_exec_header_not_counted
+#define MY_exec_header_not_counted 0
+#endif
#ifndef MY_add_dynamic_symbols
#define MY_add_dynamic_symbols 0
#endif
#endif
static CONST struct aout_backend_data MY(backend_data) = {
- 0, /* zmagic contiguous */
+ MY_zmagic_contiguous,
MY_text_includes_header,
+ MY_entry_is_text_address,
MY_exec_hdr_flags,
0, /* text vma? */
MY_set_sizes,
- 0, /* exec header is counted */
+ MY_exec_header_not_counted,
MY_add_dynamic_symbols,
MY_add_one_symbol,
MY_link_dynamic_object,
/* Final link routine. We need to use a call back to get the correct
offsets in the output file. */
+static boolean MY_bfd_final_link PARAMS ((bfd *, struct bfd_link_info *));
+
static boolean
MY_bfd_final_link (abfd, info)
bfd *abfd;
#ifndef MY_openr_next_archived_file
#define MY_openr_next_archived_file bfd_generic_openr_next_archived_file
#endif
+#ifndef MY_get_elt_at_index
+#define MY_get_elt_at_index _bfd_generic_get_elt_at_index
+#endif
#ifndef MY_generic_stat_arch_elt
#define MY_generic_stat_arch_elt bfd_generic_stat_arch_elt
#endif
#ifndef MY_slurp_extended_name_table
#define MY_slurp_extended_name_table _bfd_slurp_extended_name_table
#endif
+#ifndef MY_construct_extended_name_table
+#define MY_construct_extended_name_table \
+ _bfd_archive_bsd_construct_extended_name_table
+#endif
#ifndef MY_write_armap
#define MY_write_armap bsd_write_armap
#endif
+#ifndef MY_read_ar_hdr
+#define MY_read_ar_hdr _bfd_generic_read_ar_hdr
+#endif
#ifndef MY_truncate_arname
#define MY_truncate_arname bfd_bsd_truncate_arname
#endif
+#ifndef MY_update_armap_timestamp
+#define MY_update_armap_timestamp _bfd_archive_bsd_update_armap_timestamp
+#endif
/* No core file defined here -- configure in trad-core.c separately. */
#ifndef MY_core_file_failing_command
#ifndef MY_get_section_contents
#define MY_get_section_contents NAME(aout,get_section_contents)
#endif
+#ifndef MY_get_section_contents_in_window
+#define MY_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
+#endif
#ifndef MY_new_section_hook
#define MY_new_section_hook NAME(aout,new_section_hook)
#endif
#ifndef MY_bfd_relax_section
#define MY_bfd_relax_section bfd_generic_relax_section
#endif
+#ifndef MY_bfd_gc_sections
+#define MY_bfd_gc_sections bfd_generic_gc_sections
+#endif
#ifndef MY_bfd_reloc_type_lookup
#define MY_bfd_reloc_type_lookup NAME(aout,reloc_type_lookup)
#endif
#ifndef MY_bfd_make_debug_symbol
#define MY_bfd_make_debug_symbol 0
#endif
+#ifndef MY_read_minisymbols
+#define MY_read_minisymbols NAME(aout,read_minisymbols)
+#endif
+#ifndef MY_minisymbol_to_symbol
+#define MY_minisymbol_to_symbol NAME(aout,minisymbol_to_symbol)
+#endif
#ifndef MY_bfd_link_hash_table_create
#define MY_bfd_link_hash_table_create NAME(aout,link_hash_table_create)
#endif
#ifndef MY_bfd_link_add_symbols
#define MY_bfd_link_add_symbols NAME(aout,link_add_symbols)
#endif
+#ifndef MY_bfd_link_split_section
+#define MY_bfd_link_split_section _bfd_generic_link_split_section
+#endif
#ifndef MY_bfd_copy_private_bfd_data
#define MY_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
#endif
-#ifndef MY_bfd_is_local_label
-#define MY_bfd_is_local_label bfd_generic_is_local_label
+#ifndef MY_bfd_merge_private_bfd_data
+#define MY_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
+#endif
+
+#ifndef MY_bfd_copy_private_symbol_data
+#define MY_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
+#endif
+
+#ifndef MY_bfd_print_private_bfd_data
+#define MY_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
+#endif
+
+#ifndef MY_bfd_set_private_flags
+#define MY_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
+#endif
+
+#ifndef MY_bfd_is_local_label_name
+#define MY_bfd_is_local_label_name bfd_generic_is_local_label_name
#endif
#ifndef MY_bfd_free_cached_info
#endif
/* Aout symbols normally have leading underscores */
-#ifndef MY_symbol_leading_char
+#ifndef MY_symbol_leading_char
#define MY_symbol_leading_char '_'
#endif
#endif
#ifndef MY_BFD_TARGET
-bfd_target MY(vec) =
+const bfd_target MY(vec) =
{
TARGETNAME, /* name */
bfd_target_aout_flavour,
#ifdef TARGET_IS_BIG_ENDIAN_P
- true, /* target byte order (big) */
- true, /* target headers byte order (big) */
+ BFD_ENDIAN_BIG, /* target byte order (big) */
+ BFD_ENDIAN_BIG, /* target headers byte order (big) */
#else
- false, /* target byte order (little) */
- false, /* target headers byte order (little) */
+ BFD_ENDIAN_LITTLE, /* target byte order (little) */
+ BFD_ENDIAN_LITTLE, /* target headers byte order (little) */
#endif
(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 */
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
MY_symbol_leading_char,
AR_PAD_CHAR, /* ar_pad_char */
15, /* ar_max_namelen */
- 3, /* minimum alignment */
#ifdef TARGET_IS_BIG_ENDIAN_P
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
BFD_JUMP_TABLE_LINK (MY),
BFD_JUMP_TABLE_DYNAMIC (MY),
- (PTR) MY_backend_data,
+ /* Alternative_target */
+ NULL,
+
+ (PTR) MY_backend_data
};
#endif /* MY_BFD_TARGET */
projects / deliverable / binutils-gdb.git / blobdiff