[deliverable/binutils-gdb.git] / bfd / osf-core.c

/* BFD back-end for OSF/1 core files.
   Copyright 1993, 1994, 1995, 1998, 1999, 2001, 2002
   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 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 bfd_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 const bfd_target *
osf_core_core_file_p (abfd)
     bfd *abfd;
{
  int val;
  int i;
  char *secname;
  struct core_filehdr core_header;
  bfd_size_type amt;

  amt = sizeof core_header;
  val = bfd_bread ((PTR) &core_header, amt, 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, (bfd_size_type) 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;

      amt = sizeof core_scnhdr;
      val = bfd_bread ((PTR) &core_scnhdr, amt, 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))
	goto fail;
    }

  /* OK, we believe you.  You're a core file (sure, sure).  */

  return abfd->xvec;

 fail:
  bfd_release (abfd, core_hdr (abfd));
  core_hdr (abfd) = NULL;
  bfd_section_list_clear (abfd);
  return NULL;
}

static char *
osf_core_core_file_failing_command (abfd)
     bfd *abfd;
{
  return core_command (abfd);
}

static int
osf_core_core_file_failing_signal (abfd)
     bfd *abfd;
{
  return core_signal (abfd);
}

static bfd_boolean
osf_core_core_file_matches_executable_p (core_bfd, exec_bfd)
     bfd *core_bfd ATTRIBUTE_UNUSED;
     bfd *exec_bfd ATTRIBUTE_UNUSED;
{
  return TRUE;		/* FIXME, We have no way of telling at this point */
}
\f
/* 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_LITTLE,		/* target byte order */
    BFD_ENDIAN_LITTLE,		/* 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 (_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 */
};
Commit	Line	Data
252b5132	1	/* BFD back-end for OSF/1 core files.
9e7b37b3	2	Copyright 1993, 1994, 1995, 1998, 1999, 2001, 2002
dc810e39	3	Free Software Foundation, Inc.
252b5132 RH	4
	5	This file is part of BFD, the Binary File Descriptor library.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	20
	21	/* This file can only be compiled on systems which use OSF/1 style
	22	core files. */
	23
	24	#include "bfd.h"
	25	#include "sysdep.h"
	26	#include "libbfd.h"
	27
	28	#include <sys/user.h>
	29	#include <sys/core.h>
	30
	31	/* forward declarations */
	32
3f3c5c34 AM	33	static asection *make_bfd_asection
3f3c5c34 AM	34	PARAMS ((bfd , const char , flagword, bfd_size_type, bfd_vma, file_ptr));
b34976b6 AM	35	static const bfd_target *osf_core_core_file_p
	36	PARAMS ((bfd *));
	37	static char *osf_core_core_file_failing_command
	38	PARAMS ((bfd *));
	39	static int osf_core_core_file_failing_signal
	40	PARAMS ((bfd *));
	41	static bfd_boolean osf_core_core_file_matches_executable_p
	42	PARAMS ((bfd , bfd ));
	43	static void swap_abort
	44	PARAMS ((void));
252b5132 RH	45
	46	/* These are stored in the bfd's tdata */
	47
dc810e39	48	struct osf_core_struct
252b5132 RH	49	{
	50	int sig;
	51	char cmd[MAXCOMLEN + 1];
	52	};
	53
	54	#define core_hdr(bfd) ((bfd)->tdata.osf_core_data)
	55	#define core_signal(bfd) (core_hdr(bfd)->sig)
	56	#define core_command(bfd) (core_hdr(bfd)->cmd)
	57
	58	static asection *
	59	make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
	60	bfd *abfd;
dc810e39	61	const char *name;
252b5132 RH	62	flagword flags;
	63	bfd_size_type _raw_size;
	64	bfd_vma vma;
	65	file_ptr filepos;
	66	{
	67	asection *asect;
	68
	69	asect = bfd_make_section_anyway (abfd, name);
	70	if (!asect)
	71	return NULL;
	72
	73	asect->flags = flags;
	74	asect->_raw_size = _raw_size;
	75	asect->vma = vma;
	76	asect->filepos = filepos;
	77	asect->alignment_power = 8;
	78
	79	return asect;
	80	}
	81
252b5132 RH	82	static const bfd_target *
	83	osf_core_core_file_p (abfd)
	84	bfd *abfd;
	85	{
	86	int val;
	87	int i;
	88	char *secname;
	89	struct core_filehdr core_header;
dc810e39	90	bfd_size_type amt;
252b5132	91
dc810e39 AM	92	amt = sizeof core_header;
dc810e39 AM	93	val = bfd_bread ((PTR) &core_header, amt, abfd);
252b5132 RH	94	if (val != sizeof core_header)
	95	return NULL;
	96
	97	if (strncmp (core_header.magic, "Core", 4) != 0)
	98	return NULL;
	99
	100	core_hdr (abfd) = (struct osf_core_struct *)
dc810e39	101	bfd_zalloc (abfd, (bfd_size_type) sizeof (struct osf_core_struct));
252b5132 RH	102	if (!core_hdr (abfd))
	103	return NULL;
	104
	105	strncpy (core_command (abfd), core_header.name, MAXCOMLEN + 1);
	106	core_signal (abfd) = core_header.signo;
	107
	108	for (i = 0; i < core_header.nscns; i++)
	109	{
	110	struct core_scnhdr core_scnhdr;
	111	flagword flags;
	112
dc810e39 AM	113	amt = sizeof core_scnhdr;
dc810e39 AM	114	val = bfd_bread ((PTR) &core_scnhdr, amt, abfd);
252b5132 RH	115	if (val != sizeof core_scnhdr)
	116	break;
	117
	118	/* Skip empty sections. */
	119	if (core_scnhdr.size == 0 \|\| core_scnhdr.scnptr == 0)
	120	continue;
	121
	122	switch (core_scnhdr.scntype)
	123	{
	124	case SCNRGN:
	125	secname = ".data";
	126	flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
	127	break;
	128	case SCNSTACK:
	129	secname = ".stack";
	130	flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
	131	break;
	132	case SCNREGS:
	133	secname = ".reg";
	134	flags = SEC_HAS_CONTENTS;
	135	break;
	136	default:
	137	(*_bfd_error_handler) (_("Unhandled OSF/1 core file section type %d\n"),
	138	core_scnhdr.scntype);
	139	continue;
	140	}
	141
	142	if (!make_bfd_asection (abfd, secname, flags,
	143	(bfd_size_type) core_scnhdr.size,
	144	(bfd_vma) core_scnhdr.vaddr,
	145	(file_ptr) core_scnhdr.scnptr))
9e7b37b3	146	goto fail;
252b5132 RH	147	}
	148
	149	/* OK, we believe you. You're a core file (sure, sure). */
	150
	151	return abfd->xvec;
9e7b37b3 AM	152
	153	fail:
	154	bfd_release (abfd, core_hdr (abfd));
	155	core_hdr (abfd) = NULL;
	156	bfd_section_list_clear (abfd);
	157	return NULL;
252b5132 RH	158	}
	159
	160	static char *
	161	osf_core_core_file_failing_command (abfd)
	162	bfd *abfd;
	163	{
	164	return core_command (abfd);
	165	}
	166
252b5132 RH	167	static int
	168	osf_core_core_file_failing_signal (abfd)
	169	bfd *abfd;
	170	{
	171	return core_signal (abfd);
	172	}
	173
b34976b6	174	static bfd_boolean
252b5132	175	osf_core_core_file_matches_executable_p (core_bfd, exec_bfd)
dc810e39 AM	176	bfd *core_bfd ATTRIBUTE_UNUSED;
dc810e39 AM	177	bfd *exec_bfd ATTRIBUTE_UNUSED;
252b5132	178	{
b34976b6	179	return TRUE; /* FIXME, We have no way of telling at this point */
252b5132 RH	180	}
252b5132 RH	181	\f
252b5132 RH	182	/* If somebody calls any byte-swapping routines, shoot them. */
	183	static void
	184	swap_abort()
	185	{
	186	abort(); /* This way doesn't require any declaration for ANSI to fuck up */
	187	}
	188	#define NO_GET ((bfd_vma () PARAMS (( const bfd_byte ))) swap_abort )
	189	#define NO_PUT ((void () PARAMS ((bfd_vma, bfd_byte ))) swap_abort )
	190	#define NO_SIGNED_GET \
	191	((bfd_signed_vma () PARAMS ((const bfd_byte ))) swap_abort )
	192
	193	const bfd_target osf_core_vec =
	194	{
	195	"osf-core",
	196	bfd_target_unknown_flavour,
a68d41fb AM	197	BFD_ENDIAN_LITTLE, /* target byte order */
a68d41fb AM	198	BFD_ENDIAN_LITTLE, /* target headers byte order */
252b5132 RH	199	(HAS_RELOC \| EXEC_P \| /* object flags */
	200	HAS_LINENO \| HAS_DEBUG \|
	201	HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),
	202	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
	203	0, /* symbol prefix */
	204	' ', /* ar_pad_char */
	205	16, /* ar_max_namelen */
	206	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
	207	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
	208	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
	209	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
	210	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
	211	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
	212
	213	{ /* bfd_check_format */
	214	_bfd_dummy_target, /* unknown format */
	215	_bfd_dummy_target, /* object file */
	216	_bfd_dummy_target, /* archive */
	217	osf_core_core_file_p /* a core file */
	218	},
	219	{ /* bfd_set_format */
	220	bfd_false, bfd_false,
	221	bfd_false, bfd_false
	222	},
	223	{ /* bfd_write_contents */
	224	bfd_false, bfd_false,
	225	bfd_false, bfd_false
	226	},
dc810e39	227
3f3c5c34 AM	228	BFD_JUMP_TABLE_GENERIC (_bfd_generic),
	229	BFD_JUMP_TABLE_COPY (_bfd_generic),
	230	BFD_JUMP_TABLE_CORE (osf_core),
	231	BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
	232	BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
	233	BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
	234	BFD_JUMP_TABLE_WRITE (_bfd_generic),
	235	BFD_JUMP_TABLE_LINK (_bfd_nolink),
	236	BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
252b5132	237
c3c89269	238	NULL,
dc810e39	239
252b5132 RH	240	(PTR) 0 /* backend_data */
252b5132 RH	241	};