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/* BFD back-end for CISCO crash dumps.
 
Copyright 1994 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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;
};
 
/* 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;
 
  if (bfd_seek (abfd, crash_info_loc, SEEK_SET) != 0)
    return NULL;
 
  nread = bfd_read (buf, 1, 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, 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);
  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.  */
 
  abfd->tdata.cisco_core_data =
    ((struct cisco_core_struct *)
     bfd_zmalloc (sizeof (struct cisco_core_struct)));
  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;
    }
 
  abfd->sections = NULL;
  abfd->section_count = 0;
 
  /* Create a ".reg" section to allow access to the saved
     registers. */
 
  asect = (asection *) bfd_zmalloc (sizeof (asection));
  if (asect == NULL)
    goto error_return;
  asect->name = ".reg";
  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->_raw_size = (nread < 1024) ? nread : 1024;
  asect->next = abfd->sections;
  abfd->sections = asect;
  ++abfd->section_count;
 
  /* Create a ".crash" section to allow access to the saved
     crash information. */
 
  asect = (asection *) bfd_zmalloc (sizeof (asection));
  if (asect == NULL)
    goto error_return;
  asect->name = ".crash";
  asect->flags = SEC_HAS_CONTENTS;
  asect->vma = 0;
  asect->filepos = crashinfo_offset;
  asect->_raw_size = sizeof (crashinfo);
  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. */
 
  asect = (asection *) bfd_zmalloc (sizeof (asection));
  if (asect == NULL)
    goto error_return;
  asect->name = ".data";
  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->vma = rambase;
  asect->filepos = 0;
  asect->next = abfd->sections;
  abfd->sections = asect;
  ++abfd->section_count;
 
  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;
  }
}
 
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;
{
  return NULL;
}
 
int
cisco_core_file_failing_signal (abfd)
     bfd *abfd;
{
  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;
}
 
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 */
};

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[/] [or1k/] [branches/] [oc/] [gdb-5.0/] [bfd/] [cisco-core.c] - Blame information for rev 1771

Line No.	Rev	Author	Line
1	104	markom	`/* BFD back-end for CISCO crash dumps.`
2
3			`Copyright 1994 Free Software Foundation, Inc.`
4
5			`This file is part of BFD, the Binary File Descriptor library.`
6
7			`This program is free software; you can redistribute it and/or modify`
8			`it under the terms of the GNU General Public License as published by`
9			`the Free Software Foundation; either version 2 of the License, or`
10			`(at your option) any later version.`
11
12			`This program is distributed in the hope that it will be useful,`
13			`but WITHOUT ANY WARRANTY; without even the implied warranty of`
14			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
15			`GNU General Public License for more details.`
16
17			`You should have received a copy of the GNU General Public License`
18			`along with this program; if not, write to the Free Software`
19			`Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */`
20
21			`#include "bfd.h"`
22			`#include "sysdep.h"`
23			`#include "libbfd.h"`
24			`/* core_file_failing_signal returns a host signal (this probably should`
25			`be fixed). */`
26			`#include <signal.h>`
27
28			`/* for MSVC builds */`
29			`#ifndef SIGTRAP`
30			`# define SIGTRAP 5`
31			`#endif`
32			`#ifndef SIGEMT`
33			`# define SIGEMT 6`
34			`#endif`
35			`#ifndef SIGBUS`
36			`# define SIGBUS 10`
37			`#endif`
38
39			`int crash_info_locs[] = {`
40			`0x0250, /* mips, ppc, x86, i960 */`
41			`0x0400, /* m68k, mips, x86, i960 */`
42			`0x0FFC, /* m68k, mips, ppc, x86, i960 */`
43			`0x3000, /* ppc */`
44			`0x4FFC, /* m68k */`
45			`-1`
46			`};`
47
48			`#define CRASH_MAGIC 0xdead1234`
49			`#define MASK_ADDR(x) ((x) & 0x0fffffff) /* Mask crash info address */`
50
51			`typedef enum {`
52			`CRASH_REASON_NOTCRASHED = 0,`
53			`CRASH_REASON_EXCEPTION = 1,`
54			`CRASH_REASON_CORRUPT = 2,`
55			`} crashreason;`
56
57			`typedef struct {`
58			`char magic[4]; /* Magic number */`
59			`char version[4]; /* Version number */`
60			`char reason[4]; /* Crash reason */`
61			`char cpu_vector[4]; /* CPU vector for exceptions */`
62			`char registers[4]; /* Pointer to saved registers */`
63			`char rambase[4]; /* Base of RAM (not in V1 crash info) */`
64			`char textbase[4]; /* Base of .text section (not in V3 crash info) */`
65			`char database[4]; /* Base of .data section (not in V3 crash info) */`
66			`char bssbase[4]; /* Base of .bss section (not in V3 crash info) */`
67			`} crashinfo_external;`
68
69			`struct cisco_core_struct`
70			`{`
71			`int sig;`
72			`};`
73
74			`/* Examine the file for a crash info struct at the offset given by`
75			`CRASH_INFO_LOC. */`
76
77			`static const bfd_target *`
78			`cisco_core_file_validate (abfd, crash_info_loc)`
79			`bfd *abfd;`
80			`int crash_info_loc;`
81			`{`
82			`char buf[4];`
83			`unsigned int crashinfo_offset;`
84			`crashinfo_external crashinfo;`
85			`int nread;`
86			`unsigned int magic;`
87			`unsigned int version;`
88			`unsigned int rambase;`
89			`sec_ptr asect;`
90			`struct stat statbuf;`
91
92			`if (bfd_seek (abfd, crash_info_loc, SEEK_SET) != 0)`
93			`return NULL;`
94
95			`nread = bfd_read (buf, 1, 4, abfd);`
96			`if (nread != 4)`
97			`{`
98			`if (bfd_get_error () != bfd_error_system_call)`
99			`bfd_set_error (bfd_error_wrong_format);`
100			`return NULL;`
101			`}`
102			`crashinfo_offset = MASK_ADDR (bfd_get_32 (abfd, buf));`
103
104			`if (bfd_seek (abfd, crashinfo_offset, SEEK_SET) != 0)`
105			`{`
106			`/* Most likely we failed because of a bogus (huge) offset */`
107			`bfd_set_error (bfd_error_wrong_format);`
108			`return NULL;`
109			`}`
110
111			`nread = bfd_read (&crashinfo, 1, sizeof (crashinfo), abfd);`
112			`if (nread != sizeof (crashinfo))`
113			`{`
114			`if (bfd_get_error () != bfd_error_system_call)`
115			`bfd_set_error (bfd_error_wrong_format);`
116			`return NULL;`
117			`}`
118
119			`if (bfd_stat (abfd, &statbuf) < 0)`
120			`{`
121			`bfd_set_error (bfd_error_system_call);`
122			`return NULL;`
123			`}`
124
125			`magic = bfd_get_32 (abfd, crashinfo.magic);`
126			`if (magic != CRASH_MAGIC)`
127			`{`
128			`bfd_set_error (bfd_error_wrong_format);`
129			`return NULL;`
130			`}`
131
132			`version = bfd_get_32 (abfd, crashinfo.version);`
133			`if (version == 0)`
134			`{`
135			`bfd_set_error (bfd_error_wrong_format);`
136			`return NULL;`
137			`}`
138			`else if (version == 1)`
139			`{`
140			`/* V1 core dumps don't specify the dump base, assume 0 */`
141			`rambase = 0;`
142			`}`
143			`else`
144			`{`
145			`rambase = bfd_get_32 (abfd, crashinfo.rambase);`
146			`}`
147
148			`/* OK, we believe you. You're a core file. */`
149
150			`abfd->tdata.cisco_core_data =`
151			`((struct cisco_core_struct *)`
152			`bfd_zmalloc (sizeof (struct cisco_core_struct)));`
153			`if (abfd->tdata.cisco_core_data == NULL)`
154			`return NULL;`
155
156			`switch ((crashreason) bfd_get_32 (abfd, crashinfo.reason))`
157			`{`
158			`case CRASH_REASON_NOTCRASHED:`
159			`/* Crash file probably came from write core. */`
160			`abfd->tdata.cisco_core_data->sig = 0;`
161			`break;`
162			`case CRASH_REASON_CORRUPT:`
163			`/* The crash context area was corrupt -- proceed with caution.`
164			`We have no way of passing this information back to the caller. */`
165			`abfd->tdata.cisco_core_data->sig = 0;`
166			`break;`
167			`case CRASH_REASON_EXCEPTION:`
168			`/* Crash occured due to CPU exception. */`
169
170			`/* This is 68k-specific; for MIPS we'll need to interpret`
171			`cpu_vector differently based on the target configuration`
172			`(since CISCO core files don't seem to have the processor`
173			`encoded in them). */`
174
175			`switch (bfd_get_32 (abfd, crashinfo.cpu_vector))`
176			`{`
177			`/* bus error */`
178			`case 2 : abfd->tdata.cisco_core_data->sig = SIGBUS; break;`
179			`/* address error */`
180			`case 3 : abfd->tdata.cisco_core_data->sig = SIGBUS; break;`
181			`/* illegal instruction */`
182			`case 4 : abfd->tdata.cisco_core_data->sig = SIGILL; break;`
183			`/* zero divide */`
184			`case 5 : abfd->tdata.cisco_core_data->sig = SIGFPE; break;`
185			`/* chk instruction */`
186			`case 6 : abfd->tdata.cisco_core_data->sig = SIGFPE; break;`
187			`/* trapv instruction */`
188			`case 7 : abfd->tdata.cisco_core_data->sig = SIGFPE; break;`
189			`/* privilege violation */`
190			`case 8 : abfd->tdata.cisco_core_data->sig = SIGSEGV; break;`
191			`/* trace trap */`
192			`case 9 : abfd->tdata.cisco_core_data->sig = SIGTRAP; break;`
193			`/* line 1010 emulator */`
194			`case 10: abfd->tdata.cisco_core_data->sig = SIGILL; break;`
195			`/* line 1111 emulator */`
196			`case 11: abfd->tdata.cisco_core_data->sig = SIGILL; break;`
197
198			`/* Coprocessor protocol violation. Using a standard MMU or FPU`
199			`this cannot be triggered by software. Call it a SIGBUS. */`
200			`case 13: abfd->tdata.cisco_core_data->sig = SIGBUS; break;`
201
202			`/* interrupt */`
203			`case 31: abfd->tdata.cisco_core_data->sig = SIGINT; break;`
204			`/* breakpoint */`
205			`case 33: abfd->tdata.cisco_core_data->sig = SIGTRAP; break;`
206
207			`/* floating point err */`
208			`case 48: abfd->tdata.cisco_core_data->sig = SIGFPE; break;`
209			`/* floating point err */`
210			`case 49: abfd->tdata.cisco_core_data->sig = SIGFPE; break;`
211			`/* zero divide */`
212			`case 50: abfd->tdata.cisco_core_data->sig = SIGFPE; break;`
213			`/* underflow */`
214			`case 51: abfd->tdata.cisco_core_data->sig = SIGFPE; break;`
215			`/* operand error */`
216			`case 52: abfd->tdata.cisco_core_data->sig = SIGFPE; break;`
217			`/* overflow */`
218			`case 53: abfd->tdata.cisco_core_data->sig = SIGFPE; break;`
219			`/* NAN */`
220			`case 54: abfd->tdata.cisco_core_data->sig = SIGFPE; break;`
221			`default:`
222			`#ifndef SIGEMT`
223			`#define SIGEMT SIGTRAP`
224			`#endif`
225			`/* "software generated"*/`
226			`abfd->tdata.cisco_core_data->sig = SIGEMT;`
227			`}`
228			`break;`
229			`default:`
230			`/* Unknown crash reason. */`
231			`abfd->tdata.cisco_core_data->sig = 0;`
232			`break;`
233			`}`
234
235			`abfd->sections = NULL;`
236			`abfd->section_count = 0;`
237
238			`/* Create a ".reg" section to allow access to the saved`
239			`registers. */`
240
241			`asect = (asection *) bfd_zmalloc (sizeof (asection));`
242			`if (asect == NULL)`
243			`goto error_return;`
244			`asect->name = ".reg";`
245			`asect->flags = SEC_HAS_CONTENTS;`
246			`asect->vma = 0;`
247			`asect->filepos = bfd_get_32 (abfd, crashinfo.registers) - rambase;`
248			`/* Since we don't know the exact size of the saved register info,`
249			`choose a register section size that is either the remaining part`
250			`of the file, or 1024, whichever is smaller. */`
251			`nread = statbuf.st_size - asect->filepos;`
252			`asect->_raw_size = (nread < 1024) ? nread : 1024;`
253			`asect->next = abfd->sections;`
254			`abfd->sections = asect;`
255			`++abfd->section_count;`
256
257			`/* Create a ".crash" section to allow access to the saved`
258			`crash information. */`
259
260			`asect = (asection *) bfd_zmalloc (sizeof (asection));`
261			`if (asect == NULL)`
262			`goto error_return;`
263			`asect->name = ".crash";`
264			`asect->flags = SEC_HAS_CONTENTS;`
265			`asect->vma = 0;`
266			`asect->filepos = crashinfo_offset;`
267			`asect->_raw_size = sizeof (crashinfo);`
268			`asect->next = abfd->sections;`
269			`abfd->sections = asect;`
270			`++abfd->section_count;`
271
272			`/* Create a ".data" section that maps the entire file, which is`
273			`essentially a dump of the target system's RAM. */`
274
275			`asect = (asection *) bfd_zmalloc (sizeof (asection));`
276			`if (asect == NULL)`
277			`goto error_return;`
278			`asect->name = ".data";`
279			`asect->flags = SEC_ALLOC \| SEC_LOAD \| SEC_HAS_CONTENTS;`
280			`/* The size of memory is the size of the core file itself. */`
281			`asect->_raw_size = statbuf.st_size;`
282			`asect->vma = rambase;`
283			`asect->filepos = 0;`
284			`asect->next = abfd->sections;`
285			`abfd->sections = asect;`
286			`++abfd->section_count;`
287
288			`return abfd->xvec;`
289
290			`/* Get here if we have already started filling out the BFD`
291			`and there is an error of some kind. */`
292
293			`error_return:`
294			`{`
295			`sec_ptr nextsect;`
296			`for (asect = abfd->sections; asect != NULL;)`
297			`{`
298			`nextsect = asect->next;`
299			`free (asect);`
300			`asect = nextsect;`
301			`}`
302			`free (abfd->tdata.cisco_core_data);`
303			`return NULL;`
304			`}`
305			`}`
306
307			`static const bfd_target *`
308			`cisco_core_file_p (abfd)`
309			`bfd *abfd;`
310			`{`
311			`int *crash_info_locp;`
312			`const bfd_target *target = NULL;`
313
314			`for (crash_info_locp = crash_info_locs;`
315			`*crash_info_locp != -1 && target == NULL;`
316			`crash_info_locp++)`
317			`{`
318			`target = cisco_core_file_validate (abfd, *crash_info_locp);`
319			`}`
320			`return (target);`
321			`}`
322
323			`char *`
324			`cisco_core_file_failing_command (abfd)`
325			`bfd *abfd;`
326			`{`
327			`return NULL;`
328			`}`
329
330			`int`
331			`cisco_core_file_failing_signal (abfd)`
332			`bfd *abfd;`
333			`{`
334			`return abfd->tdata.cisco_core_data->sig;`
335			`}`
336
337			`boolean`
338			`cisco_core_file_matches_executable_p (core_bfd, exec_bfd)`
339			`bfd *core_bfd;`
340			`bfd *exec_bfd;`
341			`{`
342			`return true;`
343			`}`
344
345			`extern const bfd_target cisco_core_little_vec;`
346
347			`const bfd_target cisco_core_big_vec =`
348			`{`
349			`"cisco-ios-core-big",`
350			`bfd_target_unknown_flavour,`
351			`BFD_ENDIAN_BIG, /* target byte order */`
352			`BFD_ENDIAN_BIG, /* target headers byte order */`
353			`(HAS_RELOC \| EXEC_P \| /* object flags */`
354			`HAS_LINENO \| HAS_DEBUG \|`
355			`HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),`
356			`(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */`
357			`0, /* symbol prefix */`
358			`' ', /* ar_pad_char */`
359			`16, /* ar_max_namelen */`
360			`bfd_getb64, bfd_getb_signed_64, bfd_putb64,`
361			`bfd_getb32, bfd_getb_signed_32, bfd_putb32,`
362			`bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */`
363			`bfd_getb64, bfd_getb_signed_64, bfd_putb64,`
364			`bfd_getb32, bfd_getb_signed_32, bfd_putb32,`
365			`bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */`
366
367			`{ /* bfd_check_format */`
368			`_bfd_dummy_target, /* unknown format */`
369			`_bfd_dummy_target, /* object file */`
370			`_bfd_dummy_target, /* archive */`
371			`cisco_core_file_p /* a core file */`
372			`},`
373			`{ /* bfd_set_format */`
374			`bfd_false, bfd_false,`
375			`bfd_false, bfd_false`
376			`},`
377			`{ /* bfd_write_contents */`
378			`bfd_false, bfd_false,`
379			`bfd_false, bfd_false`
380			`},`
381
382			`BFD_JUMP_TABLE_GENERIC (_bfd_generic),`
383			`BFD_JUMP_TABLE_COPY (_bfd_generic),`
384			`BFD_JUMP_TABLE_CORE (cisco),`
385			`BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),`
386			`BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),`
387			`BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),`
388			`BFD_JUMP_TABLE_WRITE (_bfd_generic),`
389			`BFD_JUMP_TABLE_LINK (_bfd_nolink),`
390			`BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),`
391
392			`& cisco_core_little_vec,`
393
394			`(PTR) 0 /* backend_data */`
395			`};`
396
397			`const bfd_target cisco_core_little_vec =`
398			`{`
399			`"cisco-ios-core-little",`
400			`bfd_target_unknown_flavour,`
401			`BFD_ENDIAN_LITTLE, /* target byte order */`
402			`BFD_ENDIAN_LITTLE, /* target headers byte order */`
403			`(HAS_RELOC \| EXEC_P \| /* object flags */`
404			`HAS_LINENO \| HAS_DEBUG \|`
405			`HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),`
406			`(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */`
407			`0, /* symbol prefix */`
408			`' ', /* ar_pad_char */`
409			`16, /* ar_max_namelen */`
410			`bfd_getl64, bfd_getl_signed_64, bfd_putl64,`
411			`bfd_getl32, bfd_getl_signed_32, bfd_putl32,`
412			`bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */`
413			`bfd_getl64, bfd_getl_signed_64, bfd_putl64,`
414			`bfd_getl32, bfd_getl_signed_32, bfd_putl32,`
415			`bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */`
416
417			`{ /* bfd_check_format */`
418			`_bfd_dummy_target, /* unknown format */`
419			`_bfd_dummy_target, /* object file */`
420			`_bfd_dummy_target, /* archive */`
421			`cisco_core_file_p /* a core file */`
422			`},`
423			`{ /* bfd_set_format */`
424			`bfd_false, bfd_false,`
425			`bfd_false, bfd_false`
426			`},`
427			`{ /* bfd_write_contents */`
428			`bfd_false, bfd_false,`
429			`bfd_false, bfd_false`
430			`},`
431
432			`BFD_JUMP_TABLE_GENERIC (_bfd_generic),`
433			`BFD_JUMP_TABLE_COPY (_bfd_generic),`
434			`BFD_JUMP_TABLE_CORE (cisco),`
435			`BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),`
436			`BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),`
437			`BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),`
438			`BFD_JUMP_TABLE_WRITE (_bfd_generic),`
439			`BFD_JUMP_TABLE_LINK (_bfd_nolink),`
440			`BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),`
441
442			`&cisco_core_big_vec,`
443
444			`(PTR) 0 /* backend_data */`
445			`};`