diff options
Diffstat (limited to 'binutils-2.17/bfd/cisco-core.c')
| -rw-r--r-- | binutils-2.17/bfd/cisco-core.c | 421 |
1 files changed, 0 insertions, 421 deletions
diff --git a/binutils-2.17/bfd/cisco-core.c b/binutils-2.17/bfd/cisco-core.c deleted file mode 100644 index b7f735b5..00000000 --- a/binutils-2.17/bfd/cisco-core.c +++ /dev/null @@ -1,421 +0,0 @@ -/* BFD back-end for CISCO crash dumps. - Copyright 1994, 1997, 1999, 2000, 2001, 2002, 2004 - Free Software Foundation, Inc. - -This file is part of BFD, the Binary File Descriptor library. - -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 2 of the License, or -(at your option) any later version. - -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 this program; if not, write to the Free Software -Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.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 - -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; - -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) */ - 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 - -/* 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; - 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, (file_ptr) crash_info_loc, SEEK_SET) != 0) - return NULL; - - 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 = MASK_ADDR (bfd_get_32 (abfd, buf)); - - 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_bread (&crashinfo, (bfd_size_type) sizeof (crashinfo), abfd); - if (nread != sizeof (crashinfo)) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - if (bfd_stat (abfd, &statbuf) < 0) - { - bfd_set_error (bfd_error_system_call); - return NULL; - } - - magic = bfd_get_32 (abfd, crashinfo.magic); - if (magic != CRASH_MAGIC) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - version = bfd_get_32 (abfd, crashinfo.version); - if (version == 0) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - else if (version == 1) - { - /* V1 core dumps don't specify the dump base, assume 0 */ - rambase = 0; - } - else - { - rambase = bfd_get_32 (abfd, crashinfo.rambase); - } - - /* OK, we believe you. You're a core file. */ - - 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) - return NULL; - - switch ((crashreason) bfd_get_32 (abfd, crashinfo.reason)) - { - case CRASH_REASON_NOTCRASHED: - /* Crash file probably came from write core. */ - abfd->tdata.cisco_core_data->sig = 0; - break; - case CRASH_REASON_CORRUPT: - /* The crash context area was corrupt -- proceed with caution. - We have no way of passing this information back to the caller. */ - abfd->tdata.cisco_core_data->sig = 0; - break; - case CRASH_REASON_EXCEPTION: - /* Crash occured due to CPU exception. */ - - /* This is 68k-specific; for MIPS we'll need to interpret - cpu_vector differently based on the target configuration - (since CISCO core files don't seem to have the processor - encoded in them). */ - - switch (bfd_get_32 (abfd, crashinfo.cpu_vector)) - { - /* bus error */ - case 2 : abfd->tdata.cisco_core_data->sig = SIGBUS; break; - /* address error */ - case 3 : abfd->tdata.cisco_core_data->sig = SIGBUS; break; - /* illegal instruction */ - case 4 : abfd->tdata.cisco_core_data->sig = SIGILL; break; - /* zero divide */ - case 5 : abfd->tdata.cisco_core_data->sig = SIGFPE; break; - /* chk instruction */ - case 6 : abfd->tdata.cisco_core_data->sig = SIGFPE; break; - /* trapv instruction */ - case 7 : abfd->tdata.cisco_core_data->sig = SIGFPE; break; - /* privilege violation */ - case 8 : abfd->tdata.cisco_core_data->sig = SIGSEGV; break; - /* trace trap */ - case 9 : abfd->tdata.cisco_core_data->sig = SIGTRAP; break; - /* line 1010 emulator */ - case 10: abfd->tdata.cisco_core_data->sig = SIGILL; break; - /* line 1111 emulator */ - case 11: abfd->tdata.cisco_core_data->sig = SIGILL; break; - - /* Coprocessor protocol violation. Using a standard MMU or FPU - this cannot be triggered by software. Call it a SIGBUS. */ - case 13: abfd->tdata.cisco_core_data->sig = SIGBUS; break; - - /* interrupt */ - case 31: abfd->tdata.cisco_core_data->sig = SIGINT; break; - /* breakpoint */ - case 33: abfd->tdata.cisco_core_data->sig = SIGTRAP; break; - - /* floating point err */ - case 48: abfd->tdata.cisco_core_data->sig = SIGFPE; break; - /* floating point err */ - case 49: abfd->tdata.cisco_core_data->sig = SIGFPE; break; - /* zero divide */ - case 50: abfd->tdata.cisco_core_data->sig = SIGFPE; break; - /* underflow */ - case 51: abfd->tdata.cisco_core_data->sig = SIGFPE; break; - /* operand error */ - case 52: abfd->tdata.cisco_core_data->sig = SIGFPE; break; - /* overflow */ - case 53: abfd->tdata.cisco_core_data->sig = SIGFPE; break; - /* 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; - default: - /* Unknown crash reason. */ - abfd->tdata.cisco_core_data->sig = 0; - break; - } - - /* Create a ".data" section that maps the entire file, which is - essentially a dump of the target system's RAM. */ - - asect = bfd_make_section_anyway (abfd, ".data"); - if (asect == NULL) - 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->size = statbuf.st_size; - asect->vma = rambase; - asect->filepos = 0; - - /* 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: - 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 ATTRIBUTE_UNUSED; -{ - return NULL; -} - -int -cisco_core_file_failing_signal (abfd) - bfd *abfd ATTRIBUTE_UNUSED; -{ - return abfd->tdata.cisco_core_data->sig; -} - -extern const bfd_target cisco_core_little_vec; - -const bfd_target cisco_core_big_vec = - { - "cisco-ios-core-big", - bfd_target_unknown_flavour, - 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), - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ - 0, /* symbol prefix */ - ' ', /* ar_pad_char */ - 16, /* ar_max_namelen */ - 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_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* 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_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 */ -}; |