[deliverable/binutils-gdb.git] / bfd / cisco-core.c

/* BFD back-end for CISCO crash dumps.
   Copyright 1994, 1997, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007,
   2010, 2011
   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 3 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 "sysdep.h"
#include "bfd.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
\f
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
#define cisco_core_file_pid _bfd_nocore_core_file_pid
\f
/* 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;
  bfd_size_type nread;
  unsigned int magic;
  unsigned int version;
  unsigned int rambase;
  sec_ptr asect;
  struct stat statbuf;
  bfd_size_type amt;
  flagword flags;

  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.  */

  flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
  asect = bfd_make_section_anyway_with_flags (abfd, ".data", flags);
  if (asect == NULL)
    goto error_return;
  /* 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.  */

  flags = SEC_HAS_CONTENTS;
  asect = bfd_make_section_anyway_with_flags (abfd, ".crash", flags);
  if (asect == NULL)
    goto error_return;
  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_with_flags (abfd, ".reg", flags);
  if (asect == NULL)
    goto error_return;
  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;
}
\f
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 */
    0,				/* match priority.  */
    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 */
    0,				/* match_priority */
    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 */
};
Commit	Line	Data
252b5132	1	/* BFD back-end for CISCO crash dumps.
d3aeb6ee AM	2	Copyright 1994, 1997, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007,
d3aeb6ee AM	3	2010, 2011
9e7b37b3	4	Free Software Foundation, Inc.
252b5132	5
cd123cb7	6	This file is part of BFD, the Binary File Descriptor library.
252b5132	7
cd123cb7 NC	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 3 of the License, or
	11	(at your option) any later version.
252b5132	12
cd123cb7 NC	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
252b5132	17
cd123cb7 NC	18	You should have received a copy of the GNU General Public License
	19	along with this program; if not, write to the Free Software
	20	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	21	MA 02110-1301, USA. */
252b5132	22
252b5132	23	#include "sysdep.h"
3db64b00	24	#include "bfd.h"
252b5132 RH	25	#include "libbfd.h"
	26	/* core_file_failing_signal returns a host signal (this probably should
	27	be fixed). */
	28	#include <signal.h>
	29
	30	/* for MSVC builds */
	31	#ifndef SIGTRAP
	32	# define SIGTRAP 5
	33	#endif
	34	#ifndef SIGEMT
	35	# define SIGEMT 6
	36	#endif
	37	#ifndef SIGBUS
	38	# define SIGBUS 10
	39	#endif
	40	\f
f4bda984 RH	41	int crash_info_locs[] = {
	42	0x0250, /* mips, ppc, x86, i960 */
	43	0x0400, /* m68k, mips, x86, i960 */
	44	0x0FFC, /* m68k, mips, ppc, x86, i960 */
	45	0x3000, /* ppc */
	46	0x4FFC, /* m68k */
	47	-1
	48	};
	49
	50	#define CRASH_MAGIC 0xdead1234
	51	#define MASK_ADDR(x) ((x) & 0x0fffffff) /* Mask crash info address */
252b5132 RH	52
	53	typedef enum {
	54	CRASH_REASON_NOTCRASHED = 0,
	55	CRASH_REASON_EXCEPTION = 1,
	56	CRASH_REASON_CORRUPT = 2,
f4bda984	57	} crashreason;
252b5132	58
f4bda984 RH	59	typedef struct {
f4bda984 RH	60	char magic[4]; /* Magic number */
252b5132 RH	61	char version[4]; /* Version number */
	62	char reason[4]; /* Crash reason */
	63	char cpu_vector[4]; /* CPU vector for exceptions */
	64	char registers[4]; /* Pointer to saved registers */
	65	char rambase[4]; /* Base of RAM (not in V1 crash info) */
f4bda984 RH	66	char textbase[4]; /* Base of .text section (not in V3 crash info) */
	67	char database[4]; /* Base of .data section (not in V3 crash info) */
	68	char bssbase[4]; /* Base of .bss section (not in V3 crash info) */
	69	} crashinfo_external;
dc810e39	70
252b5132 RH	71	struct cisco_core_struct
	72	{
	73	int sig;
	74	};
dc810e39 AM	75
	76	static const bfd_target cisco_core_file_validate PARAMS ((bfd , int));
	77	static const bfd_target cisco_core_file_p PARAMS ((bfd ));
	78	char cisco_core_file_failing_command PARAMS ((bfd ));
	79	int cisco_core_file_failing_signal PARAMS ((bfd *));
69d246d9	80	#define cisco_core_file_matches_executable_p generic_core_file_matches_executable_p
35e7447c	81	#define cisco_core_file_pid _bfd_nocore_core_file_pid
252b5132	82	\f
f4bda984	83	/* Examine the file for a crash info struct at the offset given by
e60b52c6	84	CRASH_INFO_LOC. */
f4bda984	85
252b5132	86	static const bfd_target *
f4bda984	87	cisco_core_file_validate (abfd, crash_info_loc)
252b5132	88	bfd *abfd;
f4bda984	89	int crash_info_loc;
252b5132 RH	90	{
	91	char buf[4];
	92	unsigned int crashinfo_offset;
f4bda984	93	crashinfo_external crashinfo;
74633dd0	94	bfd_size_type nread;
f4bda984 RH	95	unsigned int magic;
f4bda984 RH	96	unsigned int version;
252b5132 RH	97	unsigned int rambase;
	98	sec_ptr asect;
	99	struct stat statbuf;
dc810e39	100	bfd_size_type amt;
117ed4f8	101	flagword flags;
252b5132	102
dc810e39	103	if (bfd_seek (abfd, (file_ptr) crash_info_loc, SEEK_SET) != 0)
252b5132 RH	104	return NULL;
252b5132 RH	105
dc810e39	106	nread = bfd_bread (buf, (bfd_size_type) 4, abfd);
252b5132 RH	107	if (nread != 4)
	108	{
	109	if (bfd_get_error () != bfd_error_system_call)
	110	bfd_set_error (bfd_error_wrong_format);
	111	return NULL;
	112	}
f4bda984	113	crashinfo_offset = MASK_ADDR (bfd_get_32 (abfd, buf));
252b5132	114
dc810e39	115	if (bfd_seek (abfd, (file_ptr) crashinfo_offset, SEEK_SET) != 0)
f4bda984 RH	116	{
	117	/* Most likely we failed because of a bogus (huge) offset */
	118	bfd_set_error (bfd_error_wrong_format);
	119	return NULL;
	120	}
252b5132	121
dc810e39	122	nread = bfd_bread (&crashinfo, (bfd_size_type) sizeof (crashinfo), abfd);
252b5132 RH	123	if (nread != sizeof (crashinfo))
	124	{
	125	if (bfd_get_error () != bfd_error_system_call)
	126	bfd_set_error (bfd_error_wrong_format);
	127	return NULL;
	128	}
	129
	130	if (bfd_stat (abfd, &statbuf) < 0)
	131	{
	132	bfd_set_error (bfd_error_system_call);
	133	return NULL;
	134	}
	135
f4bda984 RH	136	magic = bfd_get_32 (abfd, crashinfo.magic);
f4bda984 RH	137	if (magic != CRASH_MAGIC)
252b5132 RH	138	{
	139	bfd_set_error (bfd_error_wrong_format);
	140	return NULL;
	141	}
	142
f4bda984 RH	143	version = bfd_get_32 (abfd, crashinfo.version);
f4bda984 RH	144	if (version == 0)
252b5132	145	{
252b5132 RH	146	bfd_set_error (bfd_error_wrong_format);
252b5132 RH	147	return NULL;
f4bda984 RH	148	}
	149	else if (version == 1)
	150	{
	151	/* V1 core dumps don't specify the dump base, assume 0 */
252b5132	152	rambase = 0;
f4bda984 RH	153	}
	154	else
	155	{
252b5132	156	rambase = bfd_get_32 (abfd, crashinfo.rambase);
252b5132 RH	157	}
	158
	159	/* OK, we believe you. You're a core file. */
	160
dc810e39 AM	161	amt = sizeof (struct cisco_core_struct);
dc810e39 AM	162	abfd->tdata.cisco_core_data = (struct cisco_core_struct *) bfd_zmalloc (amt);
252b5132 RH	163	if (abfd->tdata.cisco_core_data == NULL)
	164	return NULL;
	165
	166	switch ((crashreason) bfd_get_32 (abfd, crashinfo.reason))
	167	{
	168	case CRASH_REASON_NOTCRASHED:
	169	/* Crash file probably came from write core. */
	170	abfd->tdata.cisco_core_data->sig = 0;
	171	break;
	172	case CRASH_REASON_CORRUPT:
	173	/* The crash context area was corrupt -- proceed with caution.
	174	We have no way of passing this information back to the caller. */
	175	abfd->tdata.cisco_core_data->sig = 0;
	176	break;
	177	case CRASH_REASON_EXCEPTION:
	178	/* Crash occured due to CPU exception. */
	179
	180	/* This is 68k-specific; for MIPS we'll need to interpret
	181	cpu_vector differently based on the target configuration
	182	(since CISCO core files don't seem to have the processor
	183	encoded in them). */
	184
	185	switch (bfd_get_32 (abfd, crashinfo.cpu_vector))
	186	{
	187	/* bus error */
	188	case 2 : abfd->tdata.cisco_core_data->sig = SIGBUS; break;
	189	/* address error */
	190	case 3 : abfd->tdata.cisco_core_data->sig = SIGBUS; break;
	191	/* illegal instruction */
	192	case 4 : abfd->tdata.cisco_core_data->sig = SIGILL; break;
	193	/* zero divide */
	194	case 5 : abfd->tdata.cisco_core_data->sig = SIGFPE; break;
	195	/* chk instruction */
	196	case 6 : abfd->tdata.cisco_core_data->sig = SIGFPE; break;
	197	/* trapv instruction */
	198	case 7 : abfd->tdata.cisco_core_data->sig = SIGFPE; break;
	199	/* privilege violation */
	200	case 8 : abfd->tdata.cisco_core_data->sig = SIGSEGV; break;
	201	/* trace trap */
	202	case 9 : abfd->tdata.cisco_core_data->sig = SIGTRAP; break;
	203	/* line 1010 emulator */
	204	case 10: abfd->tdata.cisco_core_data->sig = SIGILL; break;
	205	/* line 1111 emulator */
	206	case 11: abfd->tdata.cisco_core_data->sig = SIGILL; break;
	207
	208	/* Coprocessor protocol violation. Using a standard MMU or FPU
	209	this cannot be triggered by software. Call it a SIGBUS. */
	210	case 13: abfd->tdata.cisco_core_data->sig = SIGBUS; break;
	211
	212	/* interrupt */
	213	case 31: abfd->tdata.cisco_core_data->sig = SIGINT; break;
	214	/* breakpoint */
	215	case 33: abfd->tdata.cisco_core_data->sig = SIGTRAP; break;
	216
	217	/* floating point err */
	218	case 48: abfd->tdata.cisco_core_data->sig = SIGFPE; break;
	219	/* floating point err */
	220	case 49: abfd->tdata.cisco_core_data->sig = SIGFPE; break;
	221	/* zero divide */
	222	case 50: abfd->tdata.cisco_core_data->sig = SIGFPE; break;
	223	/* underflow */
	224	case 51: abfd->tdata.cisco_core_data->sig = SIGFPE; break;
	225	/* operand error */
	226	case 52: abfd->tdata.cisco_core_data->sig = SIGFPE; break;
227	/* overflow */
228	case 53: abfd->tdata.cisco_core_data->sig = SIGFPE; break;
229	/* NAN */
230	case 54: abfd->tdata.cisco_core_data->sig = SIGFPE; break;
231	default:
232	#ifndef SIGEMT
233	#define SIGEMT SIGTRAP
234	#endif
235	/* "software generated"*/
236	abfd->tdata.cisco_core_data->sig = SIGEMT;
237	}
238	break;
239	default:
240	/* Unknown crash reason. */
241	abfd->tdata.cisco_core_data->sig = 0;
242	break;
243	}
244
9e7b37b3 AM	245	/* Create a ".data" section that maps the entire file, which is
9e7b37b3 AM	246	essentially a dump of the target system's RAM. */
f4bda984	247
117ed4f8 AM	248	flags = SEC_ALLOC \| SEC_LOAD \| SEC_HAS_CONTENTS;
117ed4f8 AM	249	asect = bfd_make_section_anyway_with_flags (abfd, ".data", flags);
252b5132 RH	250	if (asect == NULL)
252b5132 RH	251	goto error_return;
9e7b37b3	252	/* The size of memory is the size of the core file itself. */
eea6121a	253	asect->size = statbuf.st_size;
9e7b37b3 AM	254	asect->vma = rambase;
9e7b37b3 AM	255	asect->filepos = 0;
252b5132	256
f4bda984	257	/* Create a ".crash" section to allow access to the saved
e60b52c6	258	crash information. */
f4bda984	259
117ed4f8 AM	260	flags = SEC_HAS_CONTENTS;
117ed4f8 AM	261	asect = bfd_make_section_anyway_with_flags (abfd, ".crash", flags);
f4bda984 RH	262	if (asect == NULL)
f4bda984 RH	263	goto error_return;
f4bda984 RH	264	asect->vma = 0;
f4bda984 RH	265	asect->filepos = crashinfo_offset;
eea6121a	266	asect->size = sizeof (crashinfo);
f4bda984	267
9e7b37b3 AM	268	/* Create a ".reg" section to allow access to the saved
9e7b37b3 AM	269	registers. */
f4bda984	270
117ed4f8	271	asect = bfd_make_section_anyway_with_flags (abfd, ".reg", flags);
252b5132 RH	272	if (asect == NULL)
252b5132 RH	273	goto error_return;
9e7b37b3 AM	274	asect->vma = 0;
	275	asect->filepos = bfd_get_32 (abfd, crashinfo.registers) - rambase;
	276	/* Since we don't know the exact size of the saved register info,
	277	choose a register section size that is either the remaining part
	278	of the file, or 1024, whichever is smaller. */
	279	nread = statbuf.st_size - asect->filepos;
eea6121a	280	asect->size = (nread < 1024) ? nread : 1024;
252b5132 RH	281
	282	return abfd->xvec;
	283
f4bda984	284	/* Get here if we have already started filling out the BFD
e60b52c6	285	and there is an error of some kind. */
f4bda984	286
252b5132	287	error_return:
9e7b37b3 AM	288	bfd_release (abfd, abfd->tdata.any);
	289	abfd->tdata.any = NULL;
	290	bfd_section_list_clear (abfd);
	291	return NULL;
252b5132 RH	292	}
252b5132 RH	293
f4bda984 RH	294	static const bfd_target *
	295	cisco_core_file_p (abfd)
	296	bfd *abfd;
	297	{
	298	int *crash_info_locp;
	299	const bfd_target *target = NULL;
	300
	301	for (crash_info_locp = crash_info_locs;
	302	*crash_info_locp != -1 && target == NULL;
	303	crash_info_locp++)
	304	{
	305	target = cisco_core_file_validate (abfd, *crash_info_locp);
	306	}
	307	return (target);
	308	}
	309
252b5132 RH	310	char *
252b5132 RH	311	cisco_core_file_failing_command (abfd)
dc810e39	312	bfd *abfd ATTRIBUTE_UNUSED;
252b5132 RH	313	{
	314	return NULL;
	315	}
	316
	317	int
	318	cisco_core_file_failing_signal (abfd)
dc810e39	319	bfd *abfd ATTRIBUTE_UNUSED;
252b5132 RH	320	{
	321	return abfd->tdata.cisco_core_data->sig;
	322	}
252b5132	323	\f
f4bda984 RH	324	extern const bfd_target cisco_core_little_vec;
	325
	326	const bfd_target cisco_core_big_vec =
252b5132	327	{
f4bda984	328	"cisco-ios-core-big",
252b5132 RH	329	bfd_target_unknown_flavour,
	330	BFD_ENDIAN_BIG, /* target byte order */
	331	BFD_ENDIAN_BIG, /* target headers byte order */
	332	(HAS_RELOC \| EXEC_P \| /* object flags */
	333	HAS_LINENO \| HAS_DEBUG \|
	334	HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),
	335	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
d3aeb6ee AM	336	0, /* symbol prefix */
	337	' ', /* ar_pad_char */
	338	16, /* ar_max_namelen */
	339	0, /* match priority. */
252b5132 RH	340	bfd_getb64, bfd_getb_signed_64, bfd_putb64,
	341	bfd_getb32, bfd_getb_signed_32, bfd_putb32,
	342	bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
	343	bfd_getb64, bfd_getb_signed_64, bfd_putb64,
	344	bfd_getb32, bfd_getb_signed_32, bfd_putb32,
	345	bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
	346
	347	{ /* bfd_check_format */
	348	_bfd_dummy_target, /* unknown format */
	349	_bfd_dummy_target, /* object file */
	350	_bfd_dummy_target, /* archive */
	351	cisco_core_file_p /* a core file */
	352	},
	353	{ /* bfd_set_format */
	354	bfd_false, bfd_false,
	355	bfd_false, bfd_false
	356	},
	357	{ /* bfd_write_contents */
	358	bfd_false, bfd_false,
	359	bfd_false, bfd_false
	360	},
e60b52c6	361
252b5132 RH	362	BFD_JUMP_TABLE_GENERIC (_bfd_generic),
	363	BFD_JUMP_TABLE_COPY (_bfd_generic),
	364	BFD_JUMP_TABLE_CORE (cisco),
	365	BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
	366	BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
	367	BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
	368	BFD_JUMP_TABLE_WRITE (_bfd_generic),
	369	BFD_JUMP_TABLE_LINK (_bfd_nolink),
	370	BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
	371
f4bda984	372	& cisco_core_little_vec,
e60b52c6	373
f4bda984 RH	374	(PTR) 0 /* backend_data */
	375	};
	376
	377	const bfd_target cisco_core_little_vec =
	378	{
	379	"cisco-ios-core-little",
	380	bfd_target_unknown_flavour,
	381	BFD_ENDIAN_LITTLE, /* target byte order */
	382	BFD_ENDIAN_LITTLE, /* target headers byte order */
	383	(HAS_RELOC \| EXEC_P \| /* object flags */
	384	HAS_LINENO \| HAS_DEBUG \|
	385	HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),
	386	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
	387	0, /* symbol prefix */
	388	' ', /* ar_pad_char */
	389	16, /* ar_max_namelen */
20ee8bc9	390	0, /* match_priority */
f4bda984 RH	391	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	392	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	393	bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
	394	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	395	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	396	bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
	397
	398	{ /* bfd_check_format */
	399	_bfd_dummy_target, /* unknown format */
	400	_bfd_dummy_target, /* object file */
	401	_bfd_dummy_target, /* archive */
	402	cisco_core_file_p /* a core file */
	403	},
	404	{ /* bfd_set_format */
	405	bfd_false, bfd_false,
	406	bfd_false, bfd_false
	407	},
	408	{ /* bfd_write_contents */
	409	bfd_false, bfd_false,
	410	bfd_false, bfd_false
	411	},
e60b52c6	412
f4bda984 RH	413	BFD_JUMP_TABLE_GENERIC (_bfd_generic),
	414	BFD_JUMP_TABLE_COPY (_bfd_generic),
	415	BFD_JUMP_TABLE_CORE (cisco),
	416	BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
	417	BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
	418	BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
	419	BFD_JUMP_TABLE_WRITE (_bfd_generic),
	420	BFD_JUMP_TABLE_LINK (_bfd_nolink),
	421	BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
	422
	423	&cisco_core_big_vec,
e60b52c6	424
252b5132 RH	425	(PTR) 0 /* backend_data */
252b5132 RH	426	};