-/* BFD backend for local host's a.out binaries */
+/* BFD backend for local host's a.out binaries
+ Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Written by Cygnus Support. Probably John Gilmore's fault.
-/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+This file is part of BFD, the Binary File Descriptor library.
-This file is part of BFD, the Binary File Diddler.
-
-BFD is free software; you can redistribute it and/or modify
+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 1, or (at your option)
-any later version.
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
-BFD is distributed in the hope that it will be useful,
+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 BFD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <ansidecl.h>
-#include <sysdep.h>
#include "bfd.h"
+#include "sysdep.h"
#include "libbfd.h"
#include <a.out.h>
-#include "liba.out.h" /* BFD a.out internal data structures */
+#include "libaout.h" /* BFD a.out internal data structures */
#include "trad-core.h" /* Traditional Unix core files */
-void (*bfd_error_trap)();
+/*======== This next section is stolen from ../include/a.out.gnu.h
+ ======== for all the losing Unix systems that don't provide these
+ ======== macros.
+
+ When porting to a new system, you must supply:
+
+ HOST_PAGE_SIZE
+ HOST_SEGMENT_SIZE
+ HOST_MACHINE_ARCH (optional)
+ HOST_MACHINE_MACHINE (optional)
+ HOST_TEXT_START_ADDR
+ HOST_STACK_END_ADDR
+
+ in the ../include/h-systemname.h file. */
+
+#define PAGE_SIZE HOST_PAGE_SIZE
+#define SEGMENT_SIZE HOST_SEGMENT_SIZE
+#define TEXT_START_ADDR HOST_TEXT_START_ADDR
+#define STACK_END_ADDR HOST_STACK_END_ADDR
+
+/*======== Stolen section begins below. =================================*/
+
+#define a_info a_magic /* Old traditional Unix */
+
+#define N_MAGIC(exec) ((exec).a_info & 0xffff)
+#define N_SET_MAGIC(exec, magic) \
+ ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff)))
+
+/* Virtual Address of text segment from the a.out file. For OMAGIC,
+ (almost always "unlinked .o's" these days), should be zero.
+ For linked files, should reflect reality if we know it. */
+
+#ifndef N_TXTADDR
+#define N_TXTADDR(x) (N_MAGIC(x)==OMAGIC? 0 : TEXT_START_ADDR)
+#endif
+
+#ifndef N_BADMAG
+#define N_BADMAG(x) (N_MAGIC(x) != OMAGIC \
+ && N_MAGIC(x) != NMAGIC \
+ && N_MAGIC(x) != ZMAGIC)
+#endif
+
+/* This complexity is for encapsulated COFF support */
+#ifndef _N_HDROFF
+#define _N_HDROFF(x) (SEGMENT_SIZE - sizeof (struct exec))
+#endif
+
+#ifndef N_TXTOFF
+#define N_TXTOFF(x) (N_MAGIC(x) == ZMAGIC ? \
+ _N_HDROFF((x)) + sizeof (struct exec) : \
+ sizeof (struct exec))
+#endif
+
+
+#ifndef N_DATOFF
+#define N_DATOFF(x) ( N_TXTOFF(x) + (x).a_text )
+#endif
+
+#ifndef N_TRELOFF
+#define N_TRELOFF(x) ( N_DATOFF(x) + (x).a_data )
+#endif
+
+#ifndef N_DRELOFF
+#define N_DRELOFF(x) ( N_TRELOFF(x) + (x).a_trsize )
+#endif
+
+#ifndef N_SYMOFF
+#define N_SYMOFF(x) ( N_DRELOFF(x) + (x).a_drsize )
+#endif
+
+#ifndef N_STROFF
+#define N_STROFF(x) ( N_SYMOFF(x) + (x).a_syms )
+#endif
+
+/* Address of text segment in memory after it is loaded. */
+#ifndef N_TXTADDR
+#define N_TXTADDR(x) 0
+#endif
+
+#ifndef N_DATADDR
+#define N_DATADDR(x) \
+ (N_MAGIC(x)==OMAGIC? (N_TXTADDR(x)+(x).a_text) \
+ : (SEGMENT_SIZE + ((N_TXTADDR(x)+(x).a_text-1) & ~(SEGMENT_SIZE-1))))
+#endif
+
+/* Address of bss segment in memory after it is loaded. */
+#ifndef N_BSSADDR
+#define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data)
+#endif
+
-static bfd_target *host_aout_callback ();
+static bfd_target *NAME(host_aout,callback) ();
/*SUPPRESS558*/
/*SUPPRESS529*/
bfd_target *
-host_aout_object_p (abfd)
- bfd *abfd;
+DEFUN(NAME(host_aout,object_p), (abfd),
+ bfd *abfd)
{
unsigned char magicbuf[4]; /* Raw bytes of magic number from file */
- unsigned long magic; /* Swapped magic number */
-
- bfd_error = system_call_error;
+ struct external_exec exec_bytes;
+ struct internal_exec exec;
- if (bfd_read ((PTR)magicbuf, 1, sizeof (magicbuf), abfd) !=
- sizeof (magicbuf))
+ if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
+ != EXEC_BYTES_SIZE) {
+ bfd_error = wrong_format;
return 0;
- magic = bfd_h_getlong (abfd, magicbuf);
+ }
- if (N_BADMAG (*((struct exec *) &magic))) return 0;
+ exec.a_magic = bfd_h_get_32 (abfd, exec_bytes.a_magic);
- return some_aout_object_p (abfd, host_aout_callback);
+ if (N_BADMAG (exec)) return 0;
+
+ NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &exec);
+ return NAME(aout,some_aout_object_p) (abfd, &exec, NAME(host_aout,callback));
}
/* Set parameters about this a.out file that are machine-dependent.
- This routine is called from some_aout_object_p just before it returns. */
+ This routine is called from NAME(some_aout_object_p) just before it returns.
+ */
static bfd_target *
-host_aout_callback (abfd)
- bfd *abfd;
+DEFUN(NAME(host_aout,callback), (abfd),
+ bfd *abfd)
{
- struct exec *execp = exec_hdr (abfd);
+ /* exec_hdr (abfd), a "struct internal_exec *", is just an abstraction,
+ as far as the BFD a.out layer cares. We use it as a "struct exec *".
+ This routine moves any data from the exec header,
+ which is needed by the BFD code, out to places known to BFD. This
+ allows the rest of the BFD code to not know or care about the structure
+ of exec_hdr (abfd). */
+ struct exec *execp = (struct exec *)exec_hdr (abfd);
/* The virtual memory addresses of the sections */
obj_datasec (abfd)->vma = N_DATADDR(*execp);
obj_sym_filepos (abfd) = N_SYMOFF (*execp);
#ifdef HOST_MACHINE_ARCH
- abfd->obj_arch = HOST_MACHINE_ARCH;
-#endif
+ bfd_default_set_arch_mach(abfd,
+ HOST_MACHINE_ARCH,
#ifdef HOST_MACHINE_MACHINE
- abfd->obj_machine = HOST_MACHINE_MACHINE;
-#endif
-
+ HOST_MACHINE_MACHINE
+#else /* not HOST_MACHINE_MACHINE */
+ 0
+#endif /* not HOST_MACHINE_MACHINE */
+ );
+#endif /* HOST_MACHINE_ARCH */
+
+ obj_reloc_entry_size (abfd) = sizeof (struct relocation_info);
return abfd->xvec;
}
boolean
-host_aout_mkobject (abfd)
- bfd *abfd;
+DEFUN(NAME(host_aout,mkobject), (abfd),
+ bfd *abfd)
{
- char *rawptr;
+ /* This struct is just for allocating two things with one zalloc, so
+ they will be freed together, without violating alignment constraints. */
+ struct aout_exec {
+ struct aoutdata aoutdata;
+ struct exec exec;
+ } *rawptr;
bfd_error = system_call_error;
/* Use an intermediate variable for clarity */
- rawptr = bfd_zalloc (abfd, sizeof (struct aoutdata) + sizeof (struct exec));
+ rawptr = (struct aout_exec *)bfd_zalloc (abfd, sizeof (struct aout_exec));
if (rawptr == NULL) {
bfd_error = no_memory;
return false;
}
- set_tdata (abfd, (struct aoutdata *) rawptr);
- exec_hdr (abfd) = (struct exec *) (rawptr + sizeof (struct aoutdata));
+ set_tdata (abfd, &rawptr->aoutdata);
+ /* exec_hdr (abfd), a "struct internal_exec *", is just an abstraction,
+ as far as the BFD a.out layer cares. We use it as a "struct exec *". */
+ exec_hdr (abfd) = (struct internal_exec *) &rawptr->exec;
/* For simplicity's sake we just make all the sections right here. */
file header, symbols, and relocation. */
boolean
-host_aout_write_object_contents (abfd)
- bfd *abfd;
+DEFUN(NAME(host_aout,write_object_contents), (abfd),
+ bfd *abfd)
{
/* This works because we are on the host system */
-#define EXEC_BYTES_SIZE sizeof (struct exec)
+#define EXEC_BYTES_SIZE (sizeof (struct exec))
+#define EXTERNAL_NLIST_SIZE (sizeof (struct nlist))
size_t data_pad = 0;
unsigned char exec_bytes[EXEC_BYTES_SIZE];
- struct exec *execp = exec_hdr (abfd);
+ struct exec *execp = (struct exec *)exec_hdr (abfd);
execp->a_text = obj_textsec (abfd)->size;
-
- N_SET_MAGIC (*execp, OMAGIC);
- if (abfd->flags & D_PAGED) {
- /* This is not strictly true, but will probably do for the default
- case. FIXME.
- */
-
- execp->a_text = obj_textsec (abfd)->size + EXEC_BYTES_SIZE;
- N_SET_MAGIC (*execp, ZMAGIC);
- } else if (abfd->flags & WP_TEXT) {
- N_SET_MAGIC (*execp, NMAGIC);
- }
- N_SET_FLAGS (*execp, 0x1); /* copied from ld.c; who the hell knows? */
-
- 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;
- }
+ WRITE_HEADERS (abfd, execp);
return true;
}
\f
/* 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 use traditional Unix core file format. */
-#define aout_core_file_failing_command trad_unix_core_file_failing_command
-#define aout_core_file_failing_signal trad_unix_core_file_failing_signal
-#define aout_core_file_matches_executable_p \
- trad_unix_core_file_matches_executable_p
-
-/* We replace this function */
-#define aout_write_object_contents host_aout_write_object_contents
+#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
+#define aout_32_generic_stat_arch_elt bfd_generic_stat_arch_elt
+#define aout_32_slurp_armap bfd_false
+#define aout_32_slurp_extended_name_table bfd_true
+#define aout_32_write_armap (PROTO (boolean, (*), \
+ (bfd *arch, unsigned int elength, struct orl *map, int orl_count, \
+ int stridx))) bfd_false
+#define aout_32_truncate_arname bfd_dont_truncate_arname
+
+/* No core file defined here -- configure in trad-core.c separately. */
+#define aout_32_core_file_failing_command bfd_false
+#define aout_32_core_file_failing_signal bfd_false
+#define aout_32_core_file_matches_executable_p bfd_true
+#define some_kinda_core_file_p bfd_false
+
+#define aout_32_bfd_debug_info_start bfd_void
+#define aout_32_bfd_debug_info_end bfd_void
+#define aout_32_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
+
+#define aout_64_openr_next_archived_file aout_32_openr_next_archived_file
+#define aout_64_generic_stat_arch_elt aout_32_generic_stat_arch_elt
+#define aout_64_slurp_armap aout_32_slurp_armap
+#define aout_64_slurp_extended_name_table aout_32_slurp_extended_name_table
+#define aout_64_write_armap aout_32_write_armap
+#define aout_64_truncate_arname aout_32_truncate_arname
+
+#define aout_64_core_file_failing_command aout_32_core_file_failing_command
+#define aout_64_core_file_failing_signal aout_32_core_file_failing_signal
+#define aout_64_core_file_matches_executable_p aout_32_core_file_matches_executable_p
+
+#define aout_64_bfd_debug_info_start aout_32_bfd_debug_info_start
+#define aout_64_bfd_debug_info_end aout_32_bfd_debug_info_end
+#define aout_64_bfd_debug_info_accumulate aout_32_bfd_debug_info_accumulate
+
+
+/* We implement these routines ourselves, rather than using the generic
+ a.out versions. */
+#define aout_write_object_contents host_write_object_contents
bfd_target host_aout_big_vec =
-{
- "a.out-host-big", /* 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, host_aout_object_p,
- bfd_generic_archive_p, trad_unix_core_file_p},
- {bfd_false, host_aout_mkobject,
+ {
+ "a.out-host-big",
+ bfd_target_aout_flavour,
+ 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 */
+ 3, /* minimum alignment power */
+ _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
+ _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
+
+ {_bfd_dummy_target, NAME(host_aout,object_p),
+ bfd_generic_archive_p, some_kinda_core_file_p},
+ {bfd_false, NAME(host_aout,mkobject),
_bfd_generic_mkarchive, bfd_false},
- {bfd_false, aout_write_object_contents, /* bfd_write_contents */
+ {bfd_false, NAME(host_aout,write_object_contents), /* bfd_write_contents */
_bfd_write_archive_contents, bfd_false},
-
- JUMP_TABLE(aout)
+
+ JUMP_TABLE(JNAME(aout))
};
bfd_target host_aout_little_vec =
-{
- "a.out-host-little", /* name */
- bfd_target_aout_flavour_enum,
- 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 */
- _do_getllong, _do_putllong, _do_getlshort, _do_putlshort, /* data */
- _do_getllong, _do_putllong, _do_getlshort, _do_putlshort, /* hdrs */
-
- {_bfd_dummy_target, host_aout_object_p,
- bfd_generic_archive_p, trad_unix_core_file_p},
- {bfd_false, host_aout_mkobject,
+ {
+ "a.out-host-little",
+ 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 */
+ 3, /* minimum alignment power */
+ _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putb16, /* data */
+ _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */
+
+ {_bfd_dummy_target, NAME(host_aout,object_p),
+ bfd_generic_archive_p, some_kinda_core_file_p},
+ {bfd_false, NAME(host_aout,mkobject),
_bfd_generic_mkarchive, bfd_false},
- {bfd_false, aout_write_object_contents, /* bfd_write_contents */
+ {bfd_false, NAME(host_aout,write_object_contents), /* bfd_write_contents */
_bfd_write_archive_contents, bfd_false},
-
- JUMP_TABLE(aout)
+
+ JUMP_TABLE(JNAME(aout))
};
projects / binutils.git / blobdiff