/* BFD back end for traditional Unix core files (U-area and raw sections)
- Copyright 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
+ Copyright 1988, 89, 91, 92, 93, 94, 95, 96, 98, 1999
+ Free Software Foundation, Inc.
Written by John Gilmore of Cygnus Support.
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. */
-
-/* To use this file on a particular host, configure the host with these
- parameters in the config/h-HOST file:
-
- HDEFINES=-DTRAD_CORE
- HDEPFILES=trad-core.o
-
- */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libaout.h" /* BFD a.out internal data structures */
-#include <stdio.h>
-#include <sys/types.h>
#include <sys/param.h>
#include <sys/dir.h>
#include <signal.h>
#include <sys/user.h> /* After a.out.h */
-#include <sys/file.h>
-#include <errno.h>
+#ifdef TRAD_HEADER
+#include TRAD_HEADER
+#endif
struct trad_core_struct
{
asection *stack_section;
asection *reg_section;
struct user u;
- } *rawptr;
+ };
#define core_upage(bfd) (&((bfd)->tdata.trad_core_data->u))
#define core_datasec(bfd) ((bfd)->tdata.trad_core_data->data_section)
/* forward declarations */
-bfd_target * trad_unix_core_file_p PARAMS ((bfd *abfd));
+const bfd_target *trad_unix_core_file_p PARAMS ((bfd *abfd));
char * trad_unix_core_file_failing_command PARAMS ((bfd *abfd));
int trad_unix_core_file_failing_signal PARAMS ((bfd *abfd));
boolean trad_unix_core_file_matches_executable_p
PARAMS ((bfd *core_bfd, bfd *exec_bfd));
+static void swap_abort PARAMS ((void));
/* Handle 4.2-style (and perhaps also sysV-style) core dump file. */
/* ARGSUSED */
-bfd_target *
+const bfd_target *
trad_unix_core_file_p (abfd)
bfd *abfd;
{
int val;
struct user u;
+ struct trad_core_struct *rawptr;
+#ifdef TRAD_CORE_USER_OFFSET
+ /* If defined, this macro is the file position of the user struct. */
+ if (bfd_seek (abfd, TRAD_CORE_USER_OFFSET, SEEK_SET) != 0)
+ return 0;
+#endif
+
val = bfd_read ((void *)&u, 1, sizeof u, abfd);
if (val != sizeof u)
- return 0; /* Too small to be a core file */
+ {
+ /* Too small to be a core file */
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
/* Sanity check perhaps??? */
if (u.u_dsize > 0x1000000) /* Remember, it's in pages... */
- return 0;
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
if (u.u_ssize > 0x1000000)
- return 0;
- /* Check that the size claimed is no greater than the file size. FIXME. */
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+
+ /* Check that the size claimed is no greater than the file size. */
+ {
+ FILE *stream = bfd_cache_lookup (abfd);
+ struct stat statbuf;
+ if (stream == NULL)
+ return 0;
+ if (fstat (fileno (stream), &statbuf) < 0)
+ {
+ bfd_set_error (bfd_error_system_call);
+ return 0;
+ }
+ if ((unsigned long) (NBPG * (UPAGES + u.u_dsize
+#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
+ - u.u_tsize
+#endif
+ + u.u_ssize))
+ > (unsigned long) statbuf.st_size)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+#ifndef TRAD_CORE_ALLOW_ANY_EXTRA_SIZE
+ if ((unsigned long) (NBPG * (UPAGES + u.u_dsize + u.u_ssize)
+#ifdef TRAD_CORE_EXTRA_SIZE_ALLOWED
+ /* Some systems write the file too big. */
+ + TRAD_CORE_EXTRA_SIZE_ALLOWED
+#endif
+ )
+ < (unsigned long) statbuf.st_size)
+ {
+ /* The file is too big. Maybe it's not a core file
+ or we otherwise have bad values for u_dsize and u_ssize). */
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+#endif
+ }
/* OK, we believe you. You're a core file (sure, sure). */
/* Allocate both the upage and the struct core_data at once, so
a single free() will free them both. */
rawptr = (struct trad_core_struct *)
- bfd_zalloc (abfd, sizeof (struct trad_core_struct));
- if (rawptr == NULL) {
- bfd_error = no_memory;
+ bfd_zmalloc (sizeof (struct trad_core_struct));
+ if (rawptr == NULL)
return 0;
- }
abfd->tdata.trad_core_data = rawptr;
/* Create the sections. This is raunchy, but bfd_close wants to free
them separately. */
- core_stacksec(abfd) = (asection *) zalloc (sizeof (asection));
- if (core_stacksec (abfd) == NULL) {
- loser:
- bfd_error = no_memory;
- free ((void *)rawptr);
- return 0;
- }
- core_datasec (abfd) = (asection *) zalloc (sizeof (asection));
- if (core_datasec (abfd) == NULL) {
- loser1:
- free ((void *)core_stacksec (abfd));
- goto loser;
- }
- core_regsec (abfd) = (asection *) zalloc (sizeof (asection));
- if (core_regsec (abfd) == NULL) {
- free ((void *)core_datasec (abfd));
- goto loser1;
- }
+ core_stacksec(abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
+ if (core_stacksec (abfd) == NULL)
+ return NULL;
+ core_datasec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
+ if (core_datasec (abfd) == NULL)
+ return NULL;
+ core_regsec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
+ if (core_regsec (abfd) == NULL)
+ return NULL;
core_stacksec (abfd)->name = ".stack";
core_datasec (abfd)->name = ".data";
core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
- core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
+ core_regsec (abfd)->flags = SEC_HAS_CONTENTS;
- core_datasec (abfd)->_raw_size = NBPG * u.u_dsize;
+ core_datasec (abfd)->_raw_size = NBPG * u.u_dsize
+#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
+ - NBPG * u.u_tsize
+#endif
+ ;
core_stacksec (abfd)->_raw_size = NBPG * u.u_ssize;
core_regsec (abfd)->_raw_size = NBPG * UPAGES; /* Larger than sizeof struct u */
#else
core_datasec (abfd)->vma = HOST_TEXT_START_ADDR + (NBPG * u.u_tsize);
#endif
+
+#ifdef HOST_STACK_START_ADDR
+ core_stacksec (abfd)->vma = HOST_STACK_START_ADDR;
+#else
core_stacksec (abfd)->vma = HOST_STACK_END_ADDR - (NBPG * u.u_ssize);
+#endif
+
/* This is tricky. As the "register section", we give them the entire
upage and stack. u.u_ar0 points to where "register 0" is stored.
There are two tricks with this, though. One is that the rest of the
0 is at the place pointed to by u_ar0 (by setting the vma of the start
of the section to -u_ar0). GDB uses this info to locate the regs,
using minor trickery to get around the offset-or-absolute-addr problem. */
- core_regsec (abfd)->vma = 0 - (int) u.u_ar0;
+ core_regsec (abfd)->vma = 0 - (bfd_vma) u.u_ar0;
core_datasec (abfd)->filepos = NBPG * UPAGES;
- core_stacksec (abfd)->filepos = (NBPG * UPAGES) + NBPG * u.u_dsize;
+ core_stacksec (abfd)->filepos = (NBPG * UPAGES) + NBPG * u.u_dsize
+#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
+ - NBPG * u.u_tsize
+#endif
+ ;
core_regsec (abfd)->filepos = 0; /* Register segment is the upage */
/* Align to word at least */
/* ARGSUSED */
int
trad_unix_core_file_failing_signal (ignore_abfd)
- bfd *ignore_abfd;
+ bfd *ignore_abfd ATTRIBUTE_UNUSED;
{
+#ifdef TRAD_UNIX_CORE_FILE_FAILING_SIGNAL
+ return TRAD_UNIX_CORE_FILE_FAILING_SIGNAL(ignore_abfd);
+#else
return -1; /* FIXME, where is it? */
+#endif
}
/* ARGSUSED */
boolean
trad_unix_core_file_matches_executable_p (core_bfd, exec_bfd)
- bfd *core_bfd, *exec_bfd;
+ bfd *core_bfd ATTRIBUTE_UNUSED;
+ bfd *exec_bfd ATTRIBUTE_UNUSED;
{
return true; /* FIXME, We have no way of telling at this point */
}
\f
-/* No archive file support via this BFD */
-#define trad_unix_openr_next_archived_file bfd_generic_openr_next_archived_file
-#define trad_unix_generic_stat_arch_elt bfd_generic_stat_arch_elt
-#define trad_unix_slurp_armap bfd_false
-#define trad_unix_slurp_extended_name_table bfd_true
-#define trad_unix_write_armap (boolean (*) PARAMS \
- ((bfd *arch, unsigned int elength, struct orl *map, \
- unsigned int orl_count, int stridx))) bfd_false
-#define trad_unix_truncate_arname bfd_dont_truncate_arname
-#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
-
-#define trad_unix_close_and_cleanup bfd_generic_close_and_cleanup
-#define trad_unix_set_section_contents (boolean (*) PARAMS \
- ((bfd *abfd, asection *section, PTR data, file_ptr offset, \
- bfd_size_type count))) bfd_false
-#define trad_unix_get_section_contents bfd_generic_get_section_contents
-#define trad_unix_new_section_hook (boolean (*) PARAMS \
- ((bfd *, sec_ptr))) bfd_true
-#define trad_unix_get_symtab_upper_bound bfd_0u
-#define trad_unix_get_symtab (unsigned int (*) PARAMS \
- ((bfd *, struct symbol_cache_entry **))) bfd_0u
-#define trad_unix_get_reloc_upper_bound (unsigned int (*) PARAMS \
- ((bfd *, sec_ptr))) bfd_0u
-#define trad_unix_canonicalize_reloc (unsigned int (*) PARAMS \
- ((bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0u
-#define trad_unix_make_empty_symbol (struct symbol_cache_entry * \
- (*) (bfd *)) bfd_false
-#define trad_unix_print_symbol (void (*) PARAMS \
- ((bfd *, PTR, struct symbol_cache_entry *, \
- bfd_print_symbol_type))) bfd_false
-#define trad_unix_get_lineno (alent * (*) PARAMS \
- ((bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
-#define trad_unix_set_arch_mach (boolean (*) PARAMS \
- ((bfd *, enum bfd_architecture, unsigned long))) bfd_false
-#define trad_unix_find_nearest_line (boolean (*) PARAMS \
- ((bfd *abfd, struct sec *section, \
- struct symbol_cache_entry **symbols,bfd_vma offset, \
- CONST char **file, CONST char **func, unsigned int *line))) bfd_false
-#define trad_unix_sizeof_headers (int (*) PARAMS \
- ((bfd *, boolean))) bfd_0
-
-#define trad_unix_bfd_debug_info_start bfd_void
-#define trad_unix_bfd_debug_info_end bfd_void
-#define trad_unix_bfd_debug_info_accumulate (void (*) PARAMS \
- ((bfd *, struct sec *))) bfd_void
-#define trad_unix_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
-#define trad_unix_bfd_relax_section bfd_generic_relax_section
-#define trad_unix_bfd_seclet_link \
- ((boolean (*) PARAMS ((bfd *, PTR, boolean))) bfd_false)
-
/* If somebody calls any byte-swapping routines, shoot them. */
-void
+static void
swap_abort()
{
abort(); /* This way doesn't require any declaration for ANSI to fuck up */
}
-#define NO_GET ((bfd_vma (*) PARAMS (( bfd_byte *))) swap_abort )
+#define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
#define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
+#define NO_SIGNED_GET \
+ ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
-bfd_target trad_core_vec =
+const bfd_target trad_core_vec =
{
"trad-core",
bfd_target_unknown_flavour,
- true, /* target byte order */
- true, /* target headers byte order */
+ BFD_ENDIAN_UNKNOWN, /* target byte order */
+ BFD_ENDIAN_UNKNOWN, /* target headers byte order */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
0, /* symbol prefix */
' ', /* ar_pad_char */
16, /* ar_max_namelen */
- 3, /* minimum alignment power */
- NO_GET, NO_PUT, NO_GET, NO_PUT, NO_GET, NO_PUT, /* data */
- NO_GET, NO_PUT, NO_GET, NO_PUT, NO_GET, NO_PUT, /* hdrs */
-
- {_bfd_dummy_target, _bfd_dummy_target,
- _bfd_dummy_target, trad_unix_core_file_p},
- {bfd_false, bfd_false, /* bfd_create_object */
- bfd_false, bfd_false},
- {bfd_false, bfd_false, /* bfd_write_contents */
- bfd_false, bfd_false},
+ NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
+ NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
+ NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
+ NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
+ NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
+ NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
+
+ { /* bfd_check_format */
+ _bfd_dummy_target, /* unknown format */
+ _bfd_dummy_target, /* object file */
+ _bfd_dummy_target, /* archive */
+ trad_unix_core_file_p /* a core file */
+ },
+ { /* bfd_set_format */
+ bfd_false, bfd_false,
+ bfd_false, bfd_false
+ },
+ { /* bfd_write_contents */
+ bfd_false, bfd_false,
+ bfd_false, bfd_false
+ },
+
+ BFD_JUMP_TABLE_GENERIC (_bfd_generic),
+ BFD_JUMP_TABLE_COPY (_bfd_generic),
+ BFD_JUMP_TABLE_CORE (trad_unix),
+ BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
+ BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
+ BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
+ BFD_JUMP_TABLE_WRITE (_bfd_generic),
+ BFD_JUMP_TABLE_LINK (_bfd_nolink),
+ BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
+ NULL,
- JUMP_TABLE(trad_unix)
+ (PTR) 0 /* backend_data */
};
projects / binutils.git / blobdiff