/* BFD back-end for CISCO crash dumps.
-
-Copyright 1994 Free Software Foundation, Inc.
+ Copyright 1994, 1997, 1999, 2000, 2001, 2002, 2004
+ 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#include "bfd.h"
#include "sysdep.h"
/* core_file_failing_signal returns a host signal (this probably should
be fixed). */
#include <signal.h>
+
+/* for MSVC builds */
+#ifndef SIGTRAP
+# define SIGTRAP 5
+#endif
+#ifndef SIGEMT
+# define SIGEMT 6
+#endif
+#ifndef SIGBUS
+# define SIGBUS 10
+#endif
\f
-#define CRASH_INFO (0xffc)
-#define CRASH_MAGIC 0xdead1234
+int crash_info_locs[] = {
+ 0x0250, /* mips, ppc, x86, i960 */
+ 0x0400, /* m68k, mips, x86, i960 */
+ 0x0FFC, /* m68k, mips, ppc, x86, i960 */
+ 0x3000, /* ppc */
+ 0x4FFC, /* m68k */
+ -1
+};
+
+#define CRASH_MAGIC 0xdead1234
+#define MASK_ADDR(x) ((x) & 0x0fffffff) /* Mask crash info address */
typedef enum {
CRASH_REASON_NOTCRASHED = 0,
CRASH_REASON_EXCEPTION = 1,
CRASH_REASON_CORRUPT = 2,
- } crashreason;
+} crashreason;
-struct crashinfo_external
-{
- char magic[4]; /* Magic number */
+typedef struct {
+ char magic[4]; /* Magic number */
char version[4]; /* Version number */
char reason[4]; /* Crash reason */
char cpu_vector[4]; /* CPU vector for exceptions */
char registers[4]; /* Pointer to saved registers */
char rambase[4]; /* Base of RAM (not in V1 crash info) */
-};
-\f
+ char textbase[4]; /* Base of .text section (not in V3 crash info) */
+ char database[4]; /* Base of .data section (not in V3 crash info) */
+ char bssbase[4]; /* Base of .bss section (not in V3 crash info) */
+} crashinfo_external;
+
struct cisco_core_struct
{
int sig;
};
+
+static const bfd_target *cisco_core_file_validate PARAMS ((bfd *, int));
+static const bfd_target *cisco_core_file_p PARAMS ((bfd *));
+char *cisco_core_file_failing_command PARAMS ((bfd *));
+int cisco_core_file_failing_signal PARAMS ((bfd *));
+#define cisco_core_file_matches_executable_p generic_core_file_matches_executable_p
\f
-static bfd_target *
-cisco_core_file_p (abfd)
+/* Examine the file for a crash info struct at the offset given by
+ CRASH_INFO_LOC. */
+
+static const bfd_target *
+cisco_core_file_validate (abfd, crash_info_loc)
bfd *abfd;
+ int crash_info_loc;
{
char buf[4];
unsigned int crashinfo_offset;
- struct crashinfo_external crashinfo;
+ crashinfo_external crashinfo;
int nread;
+ unsigned int magic;
+ unsigned int version;
unsigned int rambase;
sec_ptr asect;
struct stat statbuf;
+ bfd_size_type amt;
- if (bfd_seek (abfd, CRASH_INFO, SEEK_SET) != 0)
+ if (bfd_seek (abfd, (file_ptr) crash_info_loc, SEEK_SET) != 0)
return NULL;
- nread = bfd_read (buf, 1, 4, abfd);
+ nread = bfd_bread (buf, (bfd_size_type) 4, abfd);
if (nread != 4)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
- crashinfo_offset = bfd_get_32 (abfd, buf);
+ crashinfo_offset = MASK_ADDR (bfd_get_32 (abfd, buf));
- if (bfd_seek (abfd, crashinfo_offset, SEEK_SET) != 0)
- return NULL;
+ if (bfd_seek (abfd, (file_ptr) crashinfo_offset, SEEK_SET) != 0)
+ {
+ /* Most likely we failed because of a bogus (huge) offset */
+ bfd_set_error (bfd_error_wrong_format);
+ return NULL;
+ }
- nread = bfd_read (&crashinfo, 1, sizeof (crashinfo), abfd);
+ nread = bfd_bread (&crashinfo, (bfd_size_type) sizeof (crashinfo), abfd);
if (nread != sizeof (crashinfo))
{
if (bfd_get_error () != bfd_error_system_call)
return NULL;
}
- if (bfd_get_32 (abfd, crashinfo.magic) != CRASH_MAGIC)
+ magic = bfd_get_32 (abfd, crashinfo.magic);
+ if (magic != CRASH_MAGIC)
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
- switch (bfd_get_32 (abfd, crashinfo.version))
+ version = bfd_get_32 (abfd, crashinfo.version);
+ if (version == 0)
{
- case 0:
bfd_set_error (bfd_error_wrong_format);
return NULL;
- case 1:
+ }
+ else if (version == 1)
+ {
+ /* V1 core dumps don't specify the dump base, assume 0 */
rambase = 0;
- break;
- default:
- case 2:
+ }
+ else
+ {
rambase = bfd_get_32 (abfd, crashinfo.rambase);
- break;
}
/* OK, we believe you. You're a core file. */
- abfd->tdata.cisco_core_data =
- ((struct cisco_core_struct *)
- bfd_zmalloc (sizeof (struct cisco_core_struct)));
+ amt = sizeof (struct cisco_core_struct);
+ abfd->tdata.cisco_core_data = (struct cisco_core_struct *) bfd_zmalloc (amt);
if (abfd->tdata.cisco_core_data == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
+ return NULL;
switch ((crashreason) bfd_get_32 (abfd, crashinfo.reason))
{
/* NAN */
case 54: abfd->tdata.cisco_core_data->sig = SIGFPE; break;
default:
+#ifndef SIGEMT
+#define SIGEMT SIGTRAP
+#endif
/* "software generated"*/
abfd->tdata.cisco_core_data->sig = SIGEMT;
}
break;
}
- abfd->sections = NULL;
- abfd->section_count = 0;
-
- asect = (asection *) bfd_zmalloc (sizeof (asection));
- if (asect == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- goto error_return;
- }
- asect->name = ".reg";
- asect->flags = SEC_ALLOC | SEC_HAS_CONTENTS;
- /* This can be bigger than the real size. Set it to the size of the whole
- core file. */
- asect->_raw_size = statbuf.st_size;
- asect->vma = 0;
- asect->filepos = bfd_get_32 (abfd, crashinfo.registers) - rambase;
- asect->next = abfd->sections;
- abfd->sections = asect;
- ++abfd->section_count;
+ /* Create a ".data" section that maps the entire file, which is
+ essentially a dump of the target system's RAM. */
- /* There is only one section containing data from the target system's RAM.
- We call it .data. */
- asect = (asection *) bfd_zmalloc (sizeof (asection));
+ asect = bfd_make_section_anyway (abfd, ".data");
if (asect == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- goto error_return;
- }
- asect->name = ".data";
+ goto error_return;
asect->flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
/* The size of memory is the size of the core file itself. */
- asect->_raw_size = statbuf.st_size;
+ asect->size = statbuf.st_size;
asect->vma = rambase;
asect->filepos = 0;
- asect->next = abfd->sections;
- abfd->sections = asect;
- ++abfd->section_count;
+
+ /* Create a ".crash" section to allow access to the saved
+ crash information. */
+
+ asect = bfd_make_section_anyway (abfd, ".crash");
+ if (asect == NULL)
+ goto error_return;
+ asect->flags = SEC_HAS_CONTENTS;
+ asect->vma = 0;
+ asect->filepos = crashinfo_offset;
+ asect->size = sizeof (crashinfo);
+
+ /* Create a ".reg" section to allow access to the saved
+ registers. */
+
+ asect = bfd_make_section_anyway (abfd, ".reg");
+ if (asect == NULL)
+ goto error_return;
+ asect->flags = SEC_HAS_CONTENTS;
+ asect->vma = 0;
+ asect->filepos = bfd_get_32 (abfd, crashinfo.registers) - rambase;
+ /* Since we don't know the exact size of the saved register info,
+ choose a register section size that is either the remaining part
+ of the file, or 1024, whichever is smaller. */
+ nread = statbuf.st_size - asect->filepos;
+ asect->size = (nread < 1024) ? nread : 1024;
return abfd->xvec;
+ /* Get here if we have already started filling out the BFD
+ and there is an error of some kind. */
+
error_return:
- {
- sec_ptr nextsect;
- for (asect = abfd->sections; asect != NULL;)
- {
- nextsect = asect->next;
- free (asect);
- asect = nextsect;
- }
- free (abfd->tdata.cisco_core_data);
- return NULL;
- }
+ bfd_release (abfd, abfd->tdata.any);
+ abfd->tdata.any = NULL;
+ bfd_section_list_clear (abfd);
+ return NULL;
+}
+
+static const bfd_target *
+cisco_core_file_p (abfd)
+ bfd *abfd;
+{
+ int *crash_info_locp;
+ const bfd_target *target = NULL;
+
+ for (crash_info_locp = crash_info_locs;
+ *crash_info_locp != -1 && target == NULL;
+ crash_info_locp++)
+ {
+ target = cisco_core_file_validate (abfd, *crash_info_locp);
+ }
+ return (target);
}
char *
cisco_core_file_failing_command (abfd)
- bfd *abfd;
+ bfd *abfd ATTRIBUTE_UNUSED;
{
return NULL;
}
int
cisco_core_file_failing_signal (abfd)
- bfd *abfd;
+ bfd *abfd ATTRIBUTE_UNUSED;
{
return abfd->tdata.cisco_core_data->sig;
}
-
-boolean
-cisco_core_file_matches_executable_p (core_bfd, exec_bfd)
- bfd *core_bfd;
- bfd *exec_bfd;
-{
- return true;
-}
\f
-/* No archive file support via this BFD */
-#define cisco_openr_next_archived_file bfd_generic_openr_next_archived_file
-#define cisco_generic_stat_arch_elt bfd_generic_stat_arch_elt
-#define cisco_slurp_armap bfd_false
-#define cisco_slurp_extended_name_table bfd_true
-#define cisco_write_armap (boolean (*) PARAMS \
- ((bfd *arch, unsigned int elength, struct orl *map, \
- unsigned int orl_count, int stridx))) bfd_false
-#define cisco_truncate_arname bfd_dont_truncate_arname
-#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
-
-#define cisco_close_and_cleanup bfd_generic_close_and_cleanup
-#define cisco_set_section_contents (boolean (*) PARAMS \
- ((bfd *abfd, asection *section, PTR data, file_ptr offset, \
- bfd_size_type count))) bfd_generic_set_section_contents
-#define cisco_get_section_contents bfd_generic_get_section_contents
-#define cisco_new_section_hook (boolean (*) PARAMS \
- ((bfd *, sec_ptr))) bfd_true
-#define cisco_get_symtab_upper_bound bfd_0l
-#define cisco_get_symtab (long (*) PARAMS \
- ((bfd *, struct symbol_cache_entry **))) bfd_0l
-#define cisco_get_reloc_upper_bound (long (*) PARAMS \
- ((bfd *, sec_ptr))) bfd_0l
-#define cisco_canonicalize_reloc (long (*) PARAMS \
- ((bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0l
-#define cisco_make_empty_symbol (struct symbol_cache_entry * \
- (*) PARAMS ((bfd *))) bfd_false
-#define cisco_print_symbol (void (*) PARAMS \
- ((bfd *, PTR, struct symbol_cache_entry *, \
- bfd_print_symbol_type))) bfd_false
-#define cisco_get_symbol_info (void (*) PARAMS \
- ((bfd *, struct symbol_cache_entry *, \
- symbol_info *))) bfd_false
-#define cisco_get_lineno (alent * (*) PARAMS \
- ((bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
-#define cisco_set_arch_mach (boolean (*) PARAMS \
- ((bfd *, enum bfd_architecture, unsigned long))) bfd_false
-#define cisco_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 cisco_sizeof_headers (int (*) PARAMS \
- ((bfd *, boolean))) bfd_0
-
-#define cisco_bfd_debug_info_start bfd_void
-#define cisco_bfd_debug_info_end bfd_void
-#define cisco_bfd_debug_info_accumulate (void (*) PARAMS \
- ((bfd *, struct sec *))) bfd_void
-#define cisco_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
-#define cisco_bfd_relax_section bfd_generic_relax_section
-#define cisco_bfd_reloc_type_lookup \
- ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
-#define cisco_bfd_make_debug_symbol \
- ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
-#define cisco_bfd_link_hash_table_create \
- ((struct bfd_link_hash_table *(*) PARAMS ((bfd *))) bfd_nullvoidptr)
-#define cisco_bfd_link_add_symbols \
- ((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
-#define cisco_bfd_final_link \
- ((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
-#define cisco_bfd_copy_private_section_data \
- ((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_false)
-#define cisco_bfd_copy_private_bfd_data \
- ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_false)
-#define cisco_bfd_is_local_label \
- ((boolean (*) PARAMS ((bfd *, asymbol *))) bfd_false)
-#define cisco_bfd_free_cached_info bfd_true
-
-bfd_target cisco_core_vec =
+extern const bfd_target cisco_core_little_vec;
+
+const bfd_target cisco_core_big_vec =
{
- "trad-core",
+ "cisco-ios-core-big",
bfd_target_unknown_flavour,
- true, /* target byte order */
- true, /* target headers byte order */
+ BFD_ENDIAN_BIG, /* target byte order */
+ BFD_ENDIAN_BIG, /* target headers byte order */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
0, /* symbol prefix */
' ', /* ar_pad_char */
16, /* ar_max_namelen */
- 3, /* minimum alignment power */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
bfd_false, bfd_false,
bfd_false, bfd_false
},
-
- JUMP_TABLE(cisco),
+
+ BFD_JUMP_TABLE_GENERIC (_bfd_generic),
+ BFD_JUMP_TABLE_COPY (_bfd_generic),
+ BFD_JUMP_TABLE_CORE (cisco),
+ 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),
+
+ & cisco_core_little_vec,
+
+ (PTR) 0 /* backend_data */
+};
+
+const bfd_target cisco_core_little_vec =
+ {
+ "cisco-ios-core-little",
+ bfd_target_unknown_flavour,
+ BFD_ENDIAN_LITTLE, /* target byte order */
+ BFD_ENDIAN_LITTLE, /* target headers byte order */
+ (HAS_RELOC | EXEC_P | /* object flags */
+ HAS_LINENO | HAS_DEBUG |
+ 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 */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
+
+ { /* bfd_check_format */
+ _bfd_dummy_target, /* unknown format */
+ _bfd_dummy_target, /* object file */
+ _bfd_dummy_target, /* archive */
+ cisco_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 (cisco),
+ 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),
+
+ &cisco_core_big_vec,
+
(PTR) 0 /* backend_data */
};
projects / deliverable / binutils-gdb.git / blobdiff