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/* BFD back-end for OSF/1 core files.
Copyright 1993 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. */
/* This file can only be compiled on systems which use OSF/1 style
core files. In the config/XXXXXX.mh file for such a system add
HDEFINES=-DOSF_CORE
HDEPFILES=osf-core.o
*/
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include <stdio.h>
#include <string.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 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 (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 bfd_target *
osf_core_core_file_p (abfd)
bfd *abfd;
{
int val;
int i;
char *secname;
struct core_filehdr core_header;
int dseccnt = 0;
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;
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:
/* OSF/1 has multiple data sections (data, bss and data/bss sections
for shared libraries), but bfd doesn't permit data sections with
the same name. Construct a unique section name. */
secname = bfd_alloc (abfd, 40);
if (!secname)
{
bfd_set_error (bfd_error_no_memory);
return NULL;
}
sprintf (secname, ".data%d", dseccnt++);
break;
case SCNSTACK:
secname = ".stack";
break;
case SCNREGS:
secname = ".reg";
break;
default:
fprintf (stderr, "Unhandled OSF/1 core file section type %d\n",
core_scnhdr.scntype);
continue;
}
if (!make_bfd_asection (abfd, secname,
SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS,
(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 */
}
/* No archive file support via this BFD */
#define osf_core_openr_next_archived_file bfd_generic_openr_next_archived_file
#define osf_core_generic_stat_arch_elt bfd_generic_stat_arch_elt
#define osf_core_slurp_armap bfd_false
#define osf_core_slurp_extended_name_table bfd_true
#define osf_core_write_armap (boolean (*) PARAMS \
((bfd *arch, unsigned int elength, struct orl *map, \
unsigned int orl_count, int stridx))) bfd_false
#define osf_core_truncate_arname bfd_dont_truncate_arname
#define osf_core_close_and_cleanup bfd_generic_close_and_cleanup
#define osf_core_set_section_contents (boolean (*) PARAMS \
((bfd *abfd, asection *section, PTR data, file_ptr offset, \
bfd_size_type count))) bfd_generic_set_section_contents
#define osf_core_get_section_contents bfd_generic_get_section_contents
#define osf_core_new_section_hook (boolean (*) PARAMS \
((bfd *, sec_ptr))) bfd_true
#define osf_core_get_symtab_upper_bound bfd_0l
#define osf_core_get_symtab (long (*) PARAMS \
((bfd *, struct symbol_cache_entry **))) bfd_0l
#define osf_core_get_reloc_upper_bound (long (*) PARAMS \
((bfd *, sec_ptr))) bfd_0l
#define osf_core_canonicalize_reloc (long (*) PARAMS \
((bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0l
#define osf_core_print_symbol (void (*) PARAMS \
((bfd *, PTR, struct symbol_cache_entry *, \
bfd_print_symbol_type))) bfd_false
#define osf_core_get_symbol_info (void (*) PARAMS \
((bfd *, struct symbol_cache_entry *, \
symbol_info *))) bfd_false
#define osf_core_get_lineno (alent * (*) PARAMS \
((bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
#define osf_core_set_arch_mach (boolean (*) PARAMS \
((bfd *, enum bfd_architecture, unsigned long))) bfd_false
#define osf_core_find_nearest_line (boolean (*) PARAMS \
((bfd *abfd, struct sec *section, \
struct symbol_cache_entry **symbols,bfd_vma offset, \
CONST char **file, CONST char **func, unsigned int *line))) bfd_false
#define osf_core_sizeof_headers (int (*) PARAMS \
((bfd *, boolean))) bfd_0
#define osf_core_bfd_debug_info_start bfd_void
#define osf_core_bfd_debug_info_end bfd_void
#define osf_core_bfd_debug_info_accumulate (void (*) PARAMS \
((bfd *, struct sec *))) bfd_void
#define osf_core_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
#define osf_core_bfd_relax_section bfd_generic_relax_section
#define osf_core_bfd_reloc_type_lookup \
((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
#define osf_core_bfd_make_debug_symbol \
((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
#define osf_core_bfd_link_hash_table_create \
((struct bfd_link_hash_table *(*) PARAMS ((bfd *))) bfd_nullvoidptr)
#define osf_core_bfd_link_add_symbols \
((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
#define osf_core_bfd_final_link \
((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
#define osf_core_bfd_copy_private_section_data \
((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_false)
#define osf_core_bfd_copy_private_bfd_data \
((boolean (*) PARAMS ((bfd *, bfd *))) bfd_false)
#define osf_core_bfd_is_local_label \
((boolean (*) PARAMS ((bfd *, asymbol *))) bfd_false)
#define osf_core_bfd_free_cached_info bfd_true
/* 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 )
bfd_target osf_core_vec =
{
"osf-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 */
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
},
JUMP_TABLE(osf_core),
(PTR) 0 /* backend_data */
};
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