mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:51:15 +08:00
6812b6077e
Removed _bfd_debug_info_start, _bfd_debug_info_end and _bfd_debug_info_accumulate, which were never used. (BFD_JUMP_TABLE_GENERIC, BFD_JUMP_TABLE_COPY): Defined. (BFD_JUMP_TABLE_CORE, BFD_JUMP_TABLE_ARCHIVE): Defined. (BFD_JUMP_TABLE_SYMBOLS, BFD_JUMP_TABLE_RELOCS): Defined. (BFD_JUMP_TABLE_WRITE, BFD_JUMP_TABLE_LINK): Defined. * All backends: Changed to use the new BFD_JUMP_TABLE_* macros rather than the single JUMP_TABLE macro. Removed many of the weird macro definitions needed to support the monolithic JUMP_TABLE. * bfd-in.h (JUMP_TABLE): Removed. * libbfd-in.h: Define a bunch of macros, and declare a few functions, for use with the new BFD_JUMP_TABLE_* macros. * libbfd.c (_bfd_dummy_new_section_hook): Removed. (bfd_false): Set bfd_error_invalid_operation. (bfd_nullvoidptr): Likewise. (bfd_n1): New function. (_bfd_nocore_core_file_matches_executable_p): Renamed from _bfd_dummy_core_file_matches_executable_p. (_bfd_nocore_core_file_failing_command): Similar rename. Set bfd_error_invalid_operation. (_bfd_nocore_core_file_failing_signal): Likewise. (_bfd_generic_get_section_contents): Renamed from bfd_generic_get_section_contents. Changed all callers. (_bfd_generic_set_section_contents): Similar rename. * ieee.c: #if 0 out ieee_bfd_debug_info_start, ieee_bfd_debug_info_end, ieee_bfd_debug_info_accumulate. They were never called. * bfd-in2.h: Rebuilt. * libbfd.h: Rebuilt.
323 lines
9.2 KiB
C
323 lines
9.2 KiB
C
/* 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., 675 Mass Ave, Cambridge, MA 02139, 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>
|
||
|
||
#define CRASH_INFO (0xffc)
|
||
#define CRASH_MAGIC 0xdead1234
|
||
|
||
typedef enum {
|
||
CRASH_REASON_NOTCRASHED = 0,
|
||
CRASH_REASON_EXCEPTION = 1,
|
||
CRASH_REASON_CORRUPT = 2,
|
||
} crashreason;
|
||
|
||
struct crashinfo_external
|
||
{
|
||
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) */
|
||
};
|
||
|
||
struct cisco_core_struct
|
||
{
|
||
int sig;
|
||
};
|
||
|
||
static bfd_target *
|
||
cisco_core_file_p (abfd)
|
||
bfd *abfd;
|
||
{
|
||
char buf[4];
|
||
unsigned int crashinfo_offset;
|
||
struct crashinfo_external crashinfo;
|
||
int nread;
|
||
unsigned int rambase;
|
||
sec_ptr asect;
|
||
struct stat statbuf;
|
||
|
||
if (bfd_seek (abfd, CRASH_INFO, 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 = bfd_get_32 (abfd, buf);
|
||
|
||
if (bfd_seek (abfd, crashinfo_offset, SEEK_SET) != 0)
|
||
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;
|
||
}
|
||
|
||
if (bfd_get_32 (abfd, crashinfo.magic) != CRASH_MAGIC)
|
||
{
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return NULL;
|
||
}
|
||
|
||
switch (bfd_get_32 (abfd, crashinfo.version))
|
||
{
|
||
case 0:
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return NULL;
|
||
case 1:
|
||
rambase = 0;
|
||
break;
|
||
default:
|
||
case 2:
|
||
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)));
|
||
if (abfd->tdata.cisco_core_data == NULL)
|
||
{
|
||
bfd_set_error (bfd_error_no_memory);
|
||
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:
|
||
/* "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;
|
||
|
||
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;
|
||
|
||
/* There is only one section containing data from the target system's RAM.
|
||
We call it .data. */
|
||
asect = (asection *) bfd_zmalloc (sizeof (asection));
|
||
if (asect == NULL)
|
||
{
|
||
bfd_set_error (bfd_error_no_memory);
|
||
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;
|
||
|
||
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;
|
||
}
|
||
}
|
||
|
||
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;
|
||
}
|
||
|
||
bfd_target cisco_core_vec =
|
||
{
|
||
"trad-core",
|
||
bfd_target_unknown_flavour,
|
||
true, /* target byte order */
|
||
true, /* 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 */
|
||
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_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),
|
||
|
||
(PTR) 0 /* backend_data */
|
||
};
|