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/* BFD back-end for OSF/1 core files.
Copyright 1993, 94, 95, 97, 1998 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. */
/* This file can only be compiled on systems which use OSF/1 style
core files. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include <sys/user.h>
#include <sys/core.h>
/* forward declarations */
static asection *
make_bfd_asection PARAMS ((bfd *, CONST char *, flagword, bfd_size_type,
bfd_vma, file_ptr));
static asymbol *
osf_core_make_empty_symbol PARAMS ((bfd *));
static const bfd_target *
osf_core_core_file_p PARAMS ((bfd *));
static char *
osf_core_core_file_failing_command PARAMS ((bfd *));
static int
osf_core_core_file_failing_signal PARAMS ((bfd *));
static boolean
osf_core_core_file_matches_executable_p PARAMS ((bfd *, bfd *));
static void
swap_abort PARAMS ((void));
/* These are stored in the bfd's tdata */
struct osf_core_struct
{
int sig;
char cmd[MAXCOMLEN + 1];
};
#define core_hdr(bfd) ((bfd)->tdata.osf_core_data)
#define core_signal(bfd) (core_hdr(bfd)->sig)
#define core_command(bfd) (core_hdr(bfd)->cmd)
static asection *
make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
bfd *abfd;
CONST char *name;
flagword flags;
bfd_size_type _raw_size;
bfd_vma vma;
file_ptr filepos;
{
asection *asect;
asect = bfd_make_section_anyway (abfd, name);
if (!asect)
return NULL;
asect->flags = flags;
asect->_raw_size = _raw_size;
asect->vma = vma;
asect->filepos = filepos;
asect->alignment_power = 8;
return asect;
}
static asymbol *
osf_core_make_empty_symbol (abfd)
bfd *abfd;
{
asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
if (new)
new->the_bfd = abfd;
return new;
}
static const bfd_target *
osf_core_core_file_p (abfd)
bfd *abfd;
{
int val;
int i;
char *secname;
struct core_filehdr core_header;
val = bfd_read ((PTR)&core_header, 1, sizeof core_header, abfd);
if (val != sizeof core_header)
return NULL;
if (strncmp (core_header.magic, "Core", 4) != 0)
return NULL;
core_hdr (abfd) = (struct osf_core_struct *)
bfd_zalloc (abfd, sizeof (struct osf_core_struct));
if (!core_hdr (abfd))
return NULL;
strncpy (core_command (abfd), core_header.name, MAXCOMLEN + 1);
core_signal (abfd) = core_header.signo;
for (i = 0; i < core_header.nscns; i++)
{
struct core_scnhdr core_scnhdr;
flagword flags;
val = bfd_read ((PTR)&core_scnhdr, 1, sizeof core_scnhdr, abfd);
if (val != sizeof core_scnhdr)
break;
/* Skip empty sections. */
if (core_scnhdr.size == 0 || core_scnhdr.scnptr == 0)
continue;
switch (core_scnhdr.scntype)
{
case SCNRGN:
secname = ".data";
flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
break;
case SCNSTACK:
secname = ".stack";
flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
break;
case SCNREGS:
secname = ".reg";
flags = SEC_HAS_CONTENTS;
break;
default:
(*_bfd_error_handler) (_("Unhandled OSF/1 core file section type %d\n"),
core_scnhdr.scntype);
continue;
}
if (!make_bfd_asection (abfd, secname, flags,
(bfd_size_type) core_scnhdr.size,
(bfd_vma) core_scnhdr.vaddr,
(file_ptr) core_scnhdr.scnptr))
return NULL;
}
/* OK, we believe you. You're a core file (sure, sure). */
return abfd->xvec;
}
static char *
osf_core_core_file_failing_command (abfd)
bfd *abfd;
{
return core_command (abfd);
}
/* ARGSUSED */
static int
osf_core_core_file_failing_signal (abfd)
bfd *abfd;
{
return core_signal (abfd);
}
/* ARGSUSED */
static boolean
osf_core_core_file_matches_executable_p (core_bfd, exec_bfd)
bfd *core_bfd, *exec_bfd;
{
return true; /* FIXME, We have no way of telling at this point */
}
#define osf_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound
#define osf_core_get_symtab _bfd_nosymbols_get_symtab
#define osf_core_print_symbol _bfd_nosymbols_print_symbol
#define osf_core_get_symbol_info _bfd_nosymbols_get_symbol_info
#define osf_core_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
#define osf_core_get_lineno _bfd_nosymbols_get_lineno
#define osf_core_find_nearest_line _bfd_nosymbols_find_nearest_line
#define osf_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
#define osf_core_read_minisymbols _bfd_nosymbols_read_minisymbols
#define osf_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
/* 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 osf_core_vec =
{
"osf-core",
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 */
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 */
osf_core_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 (osf_core),
BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
BFD_JUMP_TABLE_SYMBOLS (osf_core),
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 */
};
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