352 lines
8.7 KiB
C
352 lines
8.7 KiB
C
/* BFD back-end for Irix core files.
|
|
Copyright 1993, 1994, 1996, 1999, 2001, 2002
|
|
Free Software Foundation, Inc.
|
|
Written by Stu Grossman, Cygnus Support.
|
|
Converted to back-end form by Ian Lance Taylor, Cygnus Support
|
|
|
|
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 Irix style core
|
|
files (namely, Irix 4 and Irix 5, so far). */
|
|
|
|
#include "bfd.h"
|
|
#include "sysdep.h"
|
|
#include "libbfd.h"
|
|
|
|
#ifdef IRIX_CORE
|
|
|
|
#include <core.out.h>
|
|
|
|
struct sgi_core_struct
|
|
{
|
|
int sig;
|
|
char cmd[CORE_NAMESIZE];
|
|
};
|
|
|
|
#define core_hdr(bfd) ((bfd)->tdata.sgi_core_data)
|
|
#define core_signal(bfd) (core_hdr(bfd)->sig)
|
|
#define core_command(bfd) (core_hdr(bfd)->cmd)
|
|
|
|
static asection *make_bfd_asection
|
|
PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr));
|
|
static const bfd_target *irix_core_core_file_p PARAMS ((bfd *));
|
|
static char *irix_core_core_file_failing_command PARAMS ((bfd *));
|
|
static int irix_core_core_file_failing_signal PARAMS ((bfd *));
|
|
static boolean irix_core_core_file_matches_executable_p
|
|
PARAMS ((bfd *, bfd *));
|
|
static void swap_abort PARAMS ((void));
|
|
#ifdef CORE_MAGIC64
|
|
static int do_sections64 PARAMS ((bfd *, struct coreout *));
|
|
#endif
|
|
static int do_sections PARAMS ((bfd *, struct coreout *));
|
|
|
|
/* Helper function for irix_core_core_file_p:
|
|
32-bit and 64-bit versions. */
|
|
|
|
#ifdef CORE_MAGIC64
|
|
static int
|
|
do_sections64 (abfd, coreout)
|
|
bfd * abfd;
|
|
struct coreout * coreout;
|
|
{
|
|
struct vmap64 vmap;
|
|
char *secname;
|
|
int i, val;
|
|
|
|
for (i = 0; i < coreout->c_nvmap; i++)
|
|
{
|
|
val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
|
|
if (val != sizeof vmap)
|
|
break;
|
|
|
|
switch (vmap.v_type)
|
|
{
|
|
case VDATA:
|
|
secname = ".data";
|
|
break;
|
|
case VSTACK:
|
|
secname = ".stack";
|
|
break;
|
|
#ifdef VMAPFILE
|
|
case VMAPFILE:
|
|
secname = ".mapfile";
|
|
break;
|
|
#endif
|
|
default:
|
|
continue;
|
|
}
|
|
|
|
/* A file offset of zero means that the
|
|
section is not contained in the corefile. */
|
|
if (vmap.v_offset == 0)
|
|
continue;
|
|
|
|
if (!make_bfd_asection (abfd, secname,
|
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
|
vmap.v_len, vmap.v_vaddr, vmap.v_offset))
|
|
/* Fail. */
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
/* 32-bit version. */
|
|
|
|
static int
|
|
do_sections (abfd, coreout)
|
|
bfd * abfd;
|
|
struct coreout *coreout;
|
|
{
|
|
struct vmap vmap;
|
|
char *secname;
|
|
int i, val;
|
|
|
|
for (i = 0; i < coreout->c_nvmap; i++)
|
|
{
|
|
val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
|
|
if (val != sizeof vmap)
|
|
break;
|
|
|
|
switch (vmap.v_type)
|
|
{
|
|
case VDATA:
|
|
secname = ".data";
|
|
break;
|
|
case VSTACK:
|
|
secname = ".stack";
|
|
break;
|
|
#ifdef VMAPFILE
|
|
case VMAPFILE:
|
|
secname = ".mapfile";
|
|
break;
|
|
#endif
|
|
default:
|
|
continue;
|
|
}
|
|
|
|
/* A file offset of zero means that the
|
|
section is not contained in the corefile. */
|
|
if (vmap.v_offset == 0)
|
|
continue;
|
|
|
|
if (!make_bfd_asection (abfd, secname,
|
|
SEC_ALLOC | SEC_LOAD+SEC_HAS_CONTENTS,
|
|
vmap.v_len, vmap.v_vaddr, vmap.v_offset))
|
|
/* Fail. */
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
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 = 4;
|
|
|
|
return asect;
|
|
}
|
|
|
|
static const bfd_target *
|
|
irix_core_core_file_p (abfd)
|
|
bfd *abfd;
|
|
{
|
|
int val;
|
|
struct coreout coreout;
|
|
struct idesc *idg, *idf, *ids;
|
|
bfd_size_type amt;
|
|
|
|
val = bfd_bread ((PTR) &coreout, (bfd_size_type) sizeof coreout, abfd);
|
|
if (val != sizeof coreout)
|
|
{
|
|
if (bfd_get_error () != bfd_error_system_call)
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
return 0;
|
|
}
|
|
|
|
if (coreout.c_version != CORE_VERSION1)
|
|
return 0;
|
|
|
|
/* Have we got a corefile? */
|
|
switch (coreout.c_magic)
|
|
{
|
|
case CORE_MAGIC: break;
|
|
#ifdef CORE_MAGIC64
|
|
case CORE_MAGIC64: break;
|
|
#endif
|
|
#ifdef CORE_MAGICN32
|
|
case CORE_MAGICN32: break;
|
|
#endif
|
|
default: return 0; /* Un-identifiable or not corefile. */
|
|
}
|
|
|
|
amt = sizeof (struct sgi_core_struct);
|
|
core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt);
|
|
if (!core_hdr (abfd))
|
|
return NULL;
|
|
|
|
strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
|
|
core_signal (abfd) = coreout.c_sigcause;
|
|
|
|
if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
|
|
goto fail;
|
|
|
|
/* Process corefile sections. */
|
|
#ifdef CORE_MAGIC64
|
|
if (coreout.c_magic == (int) CORE_MAGIC64)
|
|
{
|
|
if (! do_sections64 (abfd, & coreout))
|
|
goto fail;
|
|
}
|
|
else
|
|
#endif
|
|
if (! do_sections (abfd, & coreout))
|
|
goto fail;
|
|
|
|
/* Make sure that the regs are contiguous within the core file. */
|
|
|
|
idg = &coreout.c_idesc[I_GPREGS];
|
|
idf = &coreout.c_idesc[I_FPREGS];
|
|
ids = &coreout.c_idesc[I_SPECREGS];
|
|
|
|
if (idg->i_offset + idg->i_len != idf->i_offset
|
|
|| idf->i_offset + idf->i_len != ids->i_offset)
|
|
goto fail; /* Can't deal with non-contig regs */
|
|
|
|
if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
|
|
goto fail;
|
|
|
|
if (!make_bfd_asection (abfd, ".reg",
|
|
SEC_HAS_CONTENTS,
|
|
idg->i_len + idf->i_len + ids->i_len,
|
|
0,
|
|
idg->i_offset))
|
|
goto fail;
|
|
|
|
/* OK, we believe you. You're a core file (sure, sure). */
|
|
bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
|
|
|
|
return abfd->xvec;
|
|
|
|
fail:
|
|
bfd_release (abfd, core_hdr (abfd));
|
|
core_hdr (abfd) = NULL;
|
|
bfd_section_list_clear (abfd);
|
|
return NULL;
|
|
}
|
|
|
|
static char *
|
|
irix_core_core_file_failing_command (abfd)
|
|
bfd *abfd;
|
|
{
|
|
return core_command (abfd);
|
|
}
|
|
|
|
static int
|
|
irix_core_core_file_failing_signal (abfd)
|
|
bfd *abfd;
|
|
{
|
|
return core_signal (abfd);
|
|
}
|
|
|
|
static boolean
|
|
irix_core_core_file_matches_executable_p (core_bfd, exec_bfd)
|
|
bfd *core_bfd, *exec_bfd;
|
|
{
|
|
return true; /* XXX - FIXME */
|
|
}
|
|
|
|
/* 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 irix_core_vec =
|
|
{
|
|
"irix-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 */
|
|
irix_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 (irix_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),
|
|
|
|
NULL,
|
|
|
|
(PTR) 0 /* backend_data */
|
|
};
|
|
|
|
#endif /* IRIX_CORE */
|