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binutils-gdb/bfd/netbsd-core.c

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* configure.in (*-*-netbsd*): Set COREFILE to netbsd-core.c. don't define TRAD_HEADER. * configure: Rebuild. * netbsd-core.c: New file, support for NetBSD core files. * hosts/*nbsd.h: Removed.
1996-02-07 06:19:05 +08:00
/* BFD back end for NetBSD style core files
Copyright 1988, 1989, 1991, 1992, 1993 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 <stdio.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/dir.h>
#include <signal.h>
#include <sys/core.h>
#include <errno.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_core_file_p PARAMS ((bfd *abfd));
static char * netbsd_core_core_file_failing_command PARAMS ((bfd *abfd));
static int netbsd_core_core_file_failing_signal PARAMS ((bfd *abfd));
static boolean netbsd_core_core_file_matches_executable_p
PARAMS ((bfd *core_bfd, bfd *exec_bfd));
/* Handle NetBSD-style core dump file. */
/* ARGSUSED */
static const bfd_target *
netbsd_core_core_file_p (abfd)
bfd *abfd;
{
int i, val, offset;
asection *asect, *asect2;
struct core core;
struct coreseg coreseg;
val = bfd_read ((void *)&core, 1, sizeof core, 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;
}
rawptr = (struct netbsd_core_struct *)
bfd_zalloc (abfd, sizeof (struct netbsd_core_struct));
if (rawptr == NULL) {
bfd_set_error(bfd_error_no_memory);
return 0;
}
rawptr->core = core;
abfd->tdata.netbsd_core_data = rawptr;
offset = core.c_hdrsize;
for (i = 0; i < core.c_nseg; i++) {
if (bfd_seek (abfd, offset, SEEK_SET) != 0)
goto punt;
val = bfd_read ((void *)&coreseg, 1, 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;
asect = (asection *) bfd_zalloc (abfd, sizeof(asection));
if (asect == NULL) {
bfd_set_error(bfd_error_no_memory);
}
asect->_raw_size = coreseg.c_size;
asect->vma = coreseg.c_addr;
asect->filepos = offset;
asect->alignment_power = 2;
asect->next = abfd->sections;
abfd->sections = asect;
abfd->section_count++;
offset += coreseg.c_size;
switch (CORE_GETFLAG(coreseg)) {
case CORE_CPU:
asect->name = ".reg";
asect->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
#ifdef CORE_FPU_OFFSET
/* Hackish... */
asect->_raw_size = CORE_FPU_OFFSET;
asect2 = (asection *)bfd_zalloc (abfd,
sizeof (asection));
if (asect2 == NULL) {
bfd_set_error(bfd_error_no_memory);
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->next = abfd->sections;
asect2->name = ".reg2";
asect2->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
abfd->sections = asect2;
abfd->section_count++;
#endif
break;
case CORE_DATA:
asect->name = ".data";
asect->flags = SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS;
break;
case CORE_STACK:
asect->name = ".stack";
asect->flags = SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS;
break;
}
}
/* OK, we believe you. You're a core file (sure, sure). */
return abfd->xvec;
punt: {
asection *anext;
for (asect = abfd->sections; asect; asect = anext) {
anext = asect->next;
free((void *)asect);
}
}
free ((void *)rawptr);
abfd->tdata.netbsd_core_data = NULL;
abfd->sections = NULL;
abfd->section_count = 0;
return 0;
}
static char*
netbsd_core_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_core_file_failing_signal (abfd)
bfd *abfd;
{
/*return core_signal (abfd);*/
return abfd->tdata.netbsd_core_data->core.c_signo;
}
/* ARGSUSED */
static boolean
netbsd_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 netbsd_openr_next_archived_file bfd_generic_openr_next_archived_file
#define netbsd_generic_stat_arch_elt bfd_generic_stat_arch_elt
#define netbsd_slurp_armap bfd_false
#define netbsd_slurp_extended_name_table bfd_true
#define netbsd_write_armap (boolean (*) PARAMS \
((bfd *arch, unsigned int elength, struct orl *map, \
unsigned int orl_count, int stridx))) bfd_false
#define netbsd_truncate_arname bfd_dont_truncate_arname
#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
#define netbsd_close_and_cleanup bfd_generic_close_and_cleanup
#define netbsd_set_section_contents (boolean (*) PARAMS \
((bfd *abfd, asection *section, PTR data, file_ptr offset, \
bfd_size_type count))) bfd_false
#define netbsd_get_section_contents bfd_generic_get_section_contents
#define netbsd_new_section_hook (boolean (*) PARAMS \
((bfd *, sec_ptr))) bfd_true
#define netbsd_get_symtab_upper_bound bfd_0u
#define netbsd_get_symtab (unsigned int (*) PARAMS \
((bfd *, struct symbol_cache_entry **))) bfd_0u
#define netbsd_get_reloc_upper_bound (unsigned int (*) PARAMS \
((bfd *, sec_ptr))) bfd_0u
#define netbsd_canonicalize_reloc (unsigned int (*) PARAMS \
((bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0u
#define netbsd_make_empty_symbol (struct symbol_cache_entry * \
(*) PARAMS ((bfd *))) bfd_false
#define netbsd_print_symbol (void (*) PARAMS \
((bfd *, PTR, struct symbol_cache_entry *, \
bfd_print_symbol_type))) bfd_false
#define netbsd_get_symbol_info (void (*) PARAMS \
((bfd *, struct symbol_cache_entry *, \
symbol_info *))) bfd_false
#define netbsd_get_lineno (alent * (*) PARAMS \
((bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
#define netbsd_set_arch_mach (boolean (*) PARAMS \
((bfd *, enum bfd_architecture, unsigned long))) bfd_false
#define netbsd_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 netbsd_sizeof_headers (int (*) PARAMS \
((bfd *, boolean))) bfd_0
#define netbsd_bfd_debug_info_start bfd_void
#define netbsd_bfd_debug_info_end bfd_void
#define netbsd_bfd_debug_info_accumulate (void (*) PARAMS \
((bfd *, struct sec *))) bfd_void
#define netbsd_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
#define netbsd_bfd_relax_section bfd_generic_relax_section
#define netbsd_bfd_seclet_link \
((boolean (*) PARAMS ((bfd *, PTR, boolean))) bfd_false)
#define netbsd_bfd_reloc_type_lookup \
((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
#define netbsd_bfd_make_debug_symbol \
((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
/* 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,
true, /* target byte order */
true, /* target headers byte order */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | DYNAMIC | 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 */
netbsd_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 (netbsd_core),
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),
(PTR) 0 /* backend_data */
};
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