mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:51:15 +08:00
319 lines
8.4 KiB
C
319 lines
8.4 KiB
C
/* BFD back end for NetBSD style core files
|
||
Copyright (C) 1988-2018 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
|
||
MA 02110-1301, USA. */
|
||
|
||
#include "sysdep.h"
|
||
#include "bfd.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>
|
||
|
||
/* The machine ID for OpenBSD/sparc64 and older versions of
|
||
NetBSD/sparc64 overlaps with M_MIPS1. */
|
||
#define M_SPARC64_OPENBSD M_MIPS1
|
||
|
||
/* Offset of StackGhost cookie within `struct md_coredump' on
|
||
OpenBSD/sparc. */
|
||
#define SPARC_WCOOKIE_OFFSET 344
|
||
|
||
/* Offset of StackGhost cookie within `struct md_coredump' on
|
||
OpenBSD/sparc64. */
|
||
#define SPARC64_WCOOKIE_OFFSET 832
|
||
|
||
#define netbsd_core_file_matches_executable_p generic_core_file_matches_executable_p
|
||
#define netbsd_core_file_pid _bfd_nocore_core_file_pid
|
||
|
||
struct netbsd_core_struct
|
||
{
|
||
struct core core;
|
||
} *rawptr;
|
||
|
||
/* Handle NetBSD-style core dump file. */
|
||
|
||
static const bfd_target *
|
||
netbsd_core_file_p (bfd *abfd)
|
||
{
|
||
int val;
|
||
unsigned i;
|
||
file_ptr offset;
|
||
asection *asect;
|
||
struct core core;
|
||
struct coreseg coreseg;
|
||
bfd_size_type amt = sizeof core;
|
||
|
||
val = bfd_bread (&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 (&coreseg, 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_with_flags (abfd, sname, flags);
|
||
if (asect == NULL)
|
||
goto punt;
|
||
|
||
asect->size = coreseg.c_size;
|
||
asect->vma = coreseg.c_addr;
|
||
asect->filepos = offset;
|
||
asect->alignment_power = 2;
|
||
|
||
if (CORE_GETFLAG (coreseg) == CORE_CPU)
|
||
{
|
||
bfd_size_type wcookie_offset;
|
||
|
||
switch (CORE_GETMID (core))
|
||
{
|
||
case M_SPARC_NETBSD:
|
||
wcookie_offset = SPARC_WCOOKIE_OFFSET;
|
||
break;
|
||
case M_SPARC64_OPENBSD:
|
||
wcookie_offset = SPARC64_WCOOKIE_OFFSET;
|
||
break;
|
||
default:
|
||
wcookie_offset = 0;
|
||
break;
|
||
}
|
||
|
||
if (wcookie_offset > 0 && coreseg.c_size > wcookie_offset)
|
||
{
|
||
/* Truncate the .reg section. */
|
||
asect->size = wcookie_offset;
|
||
|
||
/* And create the .wcookie section. */
|
||
flags = SEC_ALLOC + SEC_HAS_CONTENTS;
|
||
asect = bfd_make_section_anyway_with_flags (abfd, ".wcookie",
|
||
flags);
|
||
if (asect == NULL)
|
||
goto punt;
|
||
|
||
asect->size = coreseg.c_size - wcookie_offset;
|
||
asect->vma = 0;
|
||
asect->filepos = offset + wcookie_offset;
|
||
asect->alignment_power = 2;
|
||
}
|
||
}
|
||
|
||
offset += coreseg.c_size;
|
||
}
|
||
|
||
/* Set architecture from machine ID. */
|
||
switch (CORE_GETMID (core))
|
||
{
|
||
case M_ALPHA_NETBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_alpha, 0);
|
||
break;
|
||
|
||
case M_ARM6_NETBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_3);
|
||
break;
|
||
|
||
case M_X86_64_NETBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x86_64);
|
||
break;
|
||
|
||
case M_386_NETBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_i386_i386);
|
||
break;
|
||
|
||
case M_68K_NETBSD:
|
||
case M_68K4K_NETBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
|
||
break;
|
||
|
||
case M_88K_OPENBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_m88k, 0);
|
||
break;
|
||
|
||
case M_HPPA_OPENBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_hppa, bfd_mach_hppa11);
|
||
break;
|
||
|
||
case M_POWERPC_NETBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_powerpc, bfd_mach_ppc);
|
||
break;
|
||
|
||
case M_SPARC_NETBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
|
||
break;
|
||
|
||
case M_SPARC64_NETBSD:
|
||
case M_SPARC64_OPENBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc_v9);
|
||
break;
|
||
|
||
case M_VAX_NETBSD:
|
||
case M_VAX4K_NETBSD:
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_vax, 0);
|
||
break;
|
||
}
|
||
|
||
/* 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 (bfd *abfd)
|
||
{
|
||
/*return core_command (abfd);*/
|
||
return abfd->tdata.netbsd_core_data->core.c_name;
|
||
}
|
||
|
||
static int
|
||
netbsd_core_file_failing_signal (bfd *abfd)
|
||
{
|
||
/*return core_signal (abfd);*/
|
||
return abfd->tdata.netbsd_core_data->core.c_signo;
|
||
}
|
||
|
||
/* If somebody calls any byte-swapping routines, shoot them. */
|
||
|
||
static void
|
||
swap_abort (void)
|
||
{
|
||
/* This way doesn't require any declaration for ANSI to fuck up. */
|
||
abort ();
|
||
}
|
||
|
||
#define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
|
||
#define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
|
||
#define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
|
||
#define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
|
||
#define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
|
||
#define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
|
||
|
||
const bfd_target core_netbsd_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 | /* Section flags. */
|
||
SEC_ALLOC | SEC_LOAD | SEC_RELOC),
|
||
0, /* Symbol prefix. */
|
||
' ', /* ar_pad_char. */
|
||
16, /* ar_max_namelen. */
|
||
0, /* Match priority. */
|
||
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data. */
|
||
NO_GET, NO_GETS, NO_PUT, /* 32 bit data. */
|
||
NO_GET, NO_GETS, NO_PUT, /* 16 bit data. */
|
||
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs. */
|
||
NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs. */
|
||
NO_GET, NO_GETS, 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,
|
||
|
||
NULL /* Backend_data. */
|
||
};
|