259 lines
6.9 KiB
C
259 lines
6.9 KiB
C
/* BFD back end for NetBSD style core files
|
||
Copyright 1988, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000, 2001,
|
||
2002
|
||
Free Software Foundation, Inc.
|
||
Written by Paul Kranenburg, EUR
|
||
|
||
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"
|
||
#include "libaout.h" /* BFD a.out internal data structures */
|
||
|
||
#include <sys/param.h>
|
||
#include <sys/dir.h>
|
||
#include <signal.h>
|
||
#include <sys/core.h>
|
||
|
||
/*
|
||
* FIXME: On NetBSD/sparc CORE_FPU_OFFSET should be (sizeof (struct trapframe))
|
||
*/
|
||
|
||
struct netbsd_core_struct {
|
||
struct core core;
|
||
} *rawptr;
|
||
|
||
/* forward declarations */
|
||
|
||
static const bfd_target *netbsd_core_file_p
|
||
PARAMS ((bfd *abfd));
|
||
static char *netbsd_core_file_failing_command
|
||
PARAMS ((bfd *abfd));
|
||
static int netbsd_core_file_failing_signal
|
||
PARAMS ((bfd *abfd));
|
||
static bfd_boolean netbsd_core_file_matches_executable_p
|
||
PARAMS ((bfd *core_bfd, bfd *exec_bfd));
|
||
static void swap_abort
|
||
PARAMS ((void));
|
||
|
||
/* Handle NetBSD-style core dump file. */
|
||
|
||
/* ARGSUSED */
|
||
static const bfd_target *
|
||
netbsd_core_file_p (abfd)
|
||
bfd *abfd;
|
||
|
||
{
|
||
int i, val;
|
||
file_ptr offset;
|
||
asection *asect, *asect2;
|
||
struct core core;
|
||
struct coreseg coreseg;
|
||
bfd_size_type amt = sizeof core;
|
||
|
||
val = bfd_bread ((void *) &core, amt, abfd);
|
||
if (val != sizeof core)
|
||
{
|
||
/* Too small to be a core file */
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return 0;
|
||
}
|
||
|
||
if (CORE_GETMAGIC (core) != COREMAGIC)
|
||
{
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return 0;
|
||
}
|
||
|
||
amt = sizeof (struct netbsd_core_struct);
|
||
rawptr = (struct netbsd_core_struct *) bfd_zalloc (abfd, amt);
|
||
if (rawptr == NULL)
|
||
return 0;
|
||
|
||
rawptr->core = core;
|
||
abfd->tdata.netbsd_core_data = rawptr;
|
||
|
||
offset = core.c_hdrsize;
|
||
for (i = 0; i < core.c_nseg; i++)
|
||
{
|
||
const char *sname;
|
||
flagword flags;
|
||
|
||
if (bfd_seek (abfd, offset, SEEK_SET) != 0)
|
||
goto punt;
|
||
|
||
val = bfd_bread ((void *) &coreseg, (bfd_size_type) sizeof coreseg, abfd);
|
||
if (val != sizeof coreseg)
|
||
{
|
||
bfd_set_error (bfd_error_file_truncated);
|
||
goto punt;
|
||
}
|
||
if (CORE_GETMAGIC (coreseg) != CORESEGMAGIC)
|
||
{
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
goto punt;
|
||
}
|
||
|
||
offset += core.c_seghdrsize;
|
||
|
||
switch (CORE_GETFLAG (coreseg))
|
||
{
|
||
case CORE_CPU:
|
||
sname = ".reg";
|
||
flags = SEC_ALLOC + SEC_HAS_CONTENTS;
|
||
break;
|
||
case CORE_DATA:
|
||
sname = ".data";
|
||
flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
|
||
break;
|
||
case CORE_STACK:
|
||
sname = ".stack";
|
||
flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
|
||
break;
|
||
default:
|
||
sname = ".unknown";
|
||
flags = SEC_ALLOC + SEC_HAS_CONTENTS;
|
||
break;
|
||
}
|
||
asect = bfd_make_section_anyway (abfd, sname);
|
||
if (asect == NULL)
|
||
goto punt;
|
||
|
||
asect->flags = flags;
|
||
asect->_raw_size = coreseg.c_size;
|
||
asect->vma = coreseg.c_addr;
|
||
asect->filepos = offset;
|
||
asect->alignment_power = 2;
|
||
|
||
offset += coreseg.c_size;
|
||
|
||
#ifdef CORE_FPU_OFFSET
|
||
switch (CORE_GETFLAG (coreseg))
|
||
{
|
||
case CORE_CPU:
|
||
/* Hackish... */
|
||
asect->_raw_size = CORE_FPU_OFFSET;
|
||
asect2 = bfd_make_section_anyway (abfd, ".reg2");
|
||
if (asect2 == NULL)
|
||
goto punt;
|
||
asect2->_raw_size = coreseg.c_size - CORE_FPU_OFFSET;
|
||
asect2->vma = 0;
|
||
asect2->filepos = asect->filepos + CORE_FPU_OFFSET;
|
||
asect2->alignment_power = 2;
|
||
asect2->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
|
||
break;
|
||
}
|
||
#endif
|
||
}
|
||
|
||
/* OK, we believe you. You're a core file (sure, sure). */
|
||
return abfd->xvec;
|
||
|
||
punt:
|
||
bfd_release (abfd, abfd->tdata.any);
|
||
abfd->tdata.any = NULL;
|
||
bfd_section_list_clear (abfd);
|
||
return 0;
|
||
}
|
||
|
||
static char*
|
||
netbsd_core_file_failing_command (abfd)
|
||
bfd *abfd;
|
||
{
|
||
/*return core_command (abfd);*/
|
||
return abfd->tdata.netbsd_core_data->core.c_name;
|
||
}
|
||
|
||
/* ARGSUSED */
|
||
static int
|
||
netbsd_core_file_failing_signal (abfd)
|
||
bfd *abfd;
|
||
{
|
||
/*return core_signal (abfd);*/
|
||
return abfd->tdata.netbsd_core_data->core.c_signo;
|
||
}
|
||
|
||
/* ARGSUSED */
|
||
static bfd_boolean
|
||
netbsd_core_file_matches_executable_p (core_bfd, exec_bfd)
|
||
bfd *core_bfd ATTRIBUTE_UNUSED;
|
||
bfd *exec_bfd ATTRIBUTE_UNUSED;
|
||
{
|
||
return TRUE; /* FIXME, We have no way of telling at this point */
|
||
}
|
||
|
||
/* If somebody calls any byte-swapping routines, shoot them. */
|
||
static void
|
||
swap_abort ()
|
||
{
|
||
abort (); /* This way doesn't require any declaration for ANSI to fuck up */
|
||
}
|
||
#define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
|
||
#define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
|
||
#define NO_SIGNED_GET \
|
||
((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
|
||
|
||
const bfd_target netbsd_core_vec =
|
||
{
|
||
"netbsd-core",
|
||
bfd_target_unknown_flavour,
|
||
BFD_ENDIAN_UNKNOWN, /* target byte order */
|
||
BFD_ENDIAN_UNKNOWN, /* 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 */
|
||
NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
|
||
NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
|
||
NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
|
||
NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
|
||
NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
|
||
NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
|
||
|
||
{ /* bfd_check_format */
|
||
_bfd_dummy_target, /* unknown format */
|
||
_bfd_dummy_target, /* object file */
|
||
_bfd_dummy_target, /* archive */
|
||
netbsd_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 (netbsd),
|
||
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),
|
||
|
||
NULL,
|
||
|
||
(PTR) 0 /* backend_data */
|
||
};
|