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

/* BFD back end for NetBSD style core files
   Copyright 1988, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000, 2001
   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 <sys/param.h>
#include <sys/dir.h>
#include <signal.h>
#include <sys/core.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_file_p PARAMS ((bfd *abfd));
static char *netbsd_core_file_failing_command PARAMS ((bfd *abfd));
static int netbsd_core_file_failing_signal PARAMS ((bfd *abfd));
static boolean netbsd_core_file_matches_executable_p
  PARAMS ((bfd *core_bfd, bfd *exec_bfd));
static void swap_abort PARAMS ((void));

/* Handle NetBSD-style core dump file.  */

/* ARGSUSED */
static const bfd_target *
netbsd_core_file_p (abfd)
     bfd *abfd;

{
  int i, val;
  file_ptr offset;
  asection *asect, *asect2;
  struct core core;
  struct coreseg coreseg;
  bfd_size_type amt = sizeof core;

  val = bfd_bread ((void *) &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)
    {
      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_bread ((void *) &coreseg, (bfd_size_type) 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;

      amt = sizeof (asection);
      asect = (asection *) bfd_zalloc (abfd, amt);
      if (asect == NULL)
	{
	  bfd_set_error (bfd_error_no_memory);
	  goto punt;
	}

      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;
	  amt = sizeof (asection);
	  asect2 = (asection *) bfd_zalloc (abfd, amt);
	  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_file_failing_command (abfd)
	bfd *abfd;
{
 /*return core_command (abfd);*/
  return abfd->tdata.netbsd_core_data->core.c_name;
}

/* ARGSUSED */
static int
netbsd_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_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 netbsd_core_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 | 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 */
     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,

    (PTR) 0			/* backend_data */
};
Commit	Line	Data
252b5132	1	/* BFD back end for NetBSD style core files
dc810e39	2	Copyright 1988, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000, 2001
7898deda	3	Free Software Foundation, Inc.
252b5132 RH	4	Written by Paul Kranenburg, EUR
	5
	6	This file is part of BFD, the Binary File Descriptor library.
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2 of the License, or
	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program; if not, write to the Free Software
1518639e	20	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
252b5132 RH	21
	22	#include "bfd.h"
	23	#include "sysdep.h"
	24	#include "libbfd.h"
	25	#include "libaout.h" /* BFD a.out internal data structures */
	26
	27	#include <sys/param.h>
	28	#include <sys/dir.h>
	29	#include <signal.h>
	30	#include <sys/core.h>
	31
	32	/*
1518639e	33	* FIXME: On NetBSD/sparc CORE_FPU_OFFSET should be (sizeof (struct trapframe))
252b5132 RH	34	*/
	35
	36	struct netbsd_core_struct {
	37	struct core core;
	38	} *rawptr;
	39
	40	/* forward declarations */
	41
dc810e39 AM	42	static const bfd_target netbsd_core_file_p PARAMS ((bfd abfd));
	43	static char netbsd_core_file_failing_command PARAMS ((bfd abfd));
	44	static int netbsd_core_file_failing_signal PARAMS ((bfd *abfd));
	45	static boolean netbsd_core_file_matches_executable_p
	46	PARAMS ((bfd core_bfd, bfd exec_bfd));
	47	static void swap_abort PARAMS ((void));
252b5132 RH	48
	49	/* Handle NetBSD-style core dump file. */
	50
	51	/* ARGSUSED */
	52	static const bfd_target *
	53	netbsd_core_file_p (abfd)
	54	bfd *abfd;
	55
	56	{
dc810e39 AM	57	int i, val;
	58	file_ptr offset;
	59	asection asect, asect2;
	60	struct core core;
	61	struct coreseg coreseg;
	62	bfd_size_type amt = sizeof core;
	63
	64	val = bfd_bread ((void *) &core, amt, abfd);
	65	if (val != sizeof core)
	66	{
	67	/* Too small to be a core file */
	68	bfd_set_error (bfd_error_wrong_format);
	69	return 0;
	70	}
	71
	72	if (CORE_GETMAGIC (core) != COREMAGIC)
	73	{
	74	bfd_set_error (bfd_error_wrong_format);
	75	return 0;
	76	}
	77
	78	amt = sizeof (struct netbsd_core_struct);
	79	rawptr = (struct netbsd_core_struct *) bfd_zalloc (abfd, amt);
	80	if (rawptr == NULL)
	81	{
	82	bfd_set_error (bfd_error_no_memory);
	83	return 0;
	84	}
	85
	86	rawptr->core = core;
	87	abfd->tdata.netbsd_core_data = rawptr;
	88
	89	offset = core.c_hdrsize;
	90	for (i = 0; i < core.c_nseg; i++)
	91	{
	92
	93	if (bfd_seek (abfd, offset, SEEK_SET) != 0)
	94	goto punt;
	95
	96	val = bfd_bread ((void *) &coreseg, (bfd_size_type) sizeof coreseg, abfd);
	97	if (val != sizeof coreseg)
	98	{
	99	bfd_set_error (bfd_error_file_truncated);
	100	goto punt;
252b5132	101	}
dc810e39 AM	102	if (CORE_GETMAGIC (coreseg) != CORESEGMAGIC)
	103	{
	104	bfd_set_error (bfd_error_wrong_format);
	105	goto punt;
252b5132 RH	106	}
252b5132 RH	107
dc810e39 AM	108	offset += core.c_seghdrsize;
	109
	110	amt = sizeof (asection);
	111	asect = (asection *) bfd_zalloc (abfd, amt);
	112	if (asect == NULL)
	113	{
	114	bfd_set_error (bfd_error_no_memory);
	115	goto punt;
252b5132 RH	116	}
252b5132 RH	117
dc810e39 AM	118	asect->_raw_size = coreseg.c_size;
	119	asect->vma = coreseg.c_addr;
	120	asect->filepos = offset;
	121	asect->alignment_power = 2;
	122	asect->next = abfd->sections;
	123	abfd->sections = asect;
	124	abfd->section_count++;
	125	offset += coreseg.c_size;
	126
	127	switch (CORE_GETFLAG(coreseg))
	128	{
	129	case CORE_CPU:
	130	asect->name = ".reg";
	131	asect->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
252b5132	132	#ifdef CORE_FPU_OFFSET
dc810e39 AM	133	/* Hackish... */
	134	asect->_raw_size = CORE_FPU_OFFSET;
	135	amt = sizeof (asection);
	136	asect2 = (asection *) bfd_zalloc (abfd, amt);
	137	if (asect2 == NULL)
	138	{
	139	bfd_set_error (bfd_error_no_memory);
	140	goto punt;
	141	}
	142	asect2->_raw_size = coreseg.c_size - CORE_FPU_OFFSET;
	143	asect2->vma = 0;
	144	asect2->filepos = asect->filepos + CORE_FPU_OFFSET;
	145	asect2->alignment_power = 2;
	146	asect2->next = abfd->sections;
	147	asect2->name = ".reg2";
	148	asect2->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
	149	abfd->sections = asect2;
	150	abfd->section_count++;
252b5132 RH	151	#endif
252b5132 RH	152
dc810e39 AM	153	break;
	154	case CORE_DATA:
	155	asect->name = ".data";
	156	asect->flags = SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS;
	157	break;
	158	case CORE_STACK:
	159	asect->name = ".stack";
	160	asect->flags = SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS;
	161	break;
252b5132	162	}
dc810e39 AM	163	}
	164
	165	/* OK, we believe you. You're a core file (sure, sure). */
	166	return abfd->xvec;
	167
	168	punt:
	169	{
	170	asection *anext;
	171	for (asect = abfd->sections; asect; asect = anext)
	172	{
	173	anext = asect->next;
	174	free ((void *) asect);
	175	}
	176	}
	177
	178	free ((void *) rawptr);
	179	abfd->tdata.netbsd_core_data = NULL;
	180	abfd->sections = NULL;
	181	abfd->section_count = 0;
	182	return 0;
252b5132 RH	183	}
	184
	185	static char*
	186	netbsd_core_file_failing_command (abfd)
	187	bfd *abfd;
	188	{
	189	/return core_command (abfd);/
	190	return abfd->tdata.netbsd_core_data->core.c_name;
	191	}
	192
	193	/* ARGSUSED */
	194	static int
	195	netbsd_core_file_failing_signal (abfd)
	196	bfd *abfd;
	197	{
	198	/return core_signal (abfd);/
	199	return abfd->tdata.netbsd_core_data->core.c_signo;
	200	}
	201
	202	/* ARGSUSED */
	203	static boolean
	204	netbsd_core_file_matches_executable_p (core_bfd, exec_bfd)
dc810e39 AM	205	bfd *core_bfd ATTRIBUTE_UNUSED;
dc810e39 AM	206	bfd *exec_bfd ATTRIBUTE_UNUSED;
252b5132 RH	207	{
	208	return true; /* FIXME, We have no way of telling at this point */
	209	}
	210	\f
	211	/* If somebody calls any byte-swapping routines, shoot them. */
	212	static void
1518639e	213	swap_abort ()
252b5132	214	{
1518639e	215	abort (); /* This way doesn't require any declaration for ANSI to fuck up */
252b5132 RH	216	}
	217	#define NO_GET ((bfd_vma () PARAMS (( const bfd_byte ))) swap_abort )
	218	#define NO_PUT ((void () PARAMS ((bfd_vma, bfd_byte ))) swap_abort )
	219	#define NO_SIGNED_GET \
	220	((bfd_signed_vma () PARAMS ((const bfd_byte ))) swap_abort )
	221
	222	const bfd_target netbsd_core_vec =
	223	{
	224	"netbsd-core",
	225	bfd_target_unknown_flavour,
	226	BFD_ENDIAN_UNKNOWN, /* target byte order */
	227	BFD_ENDIAN_UNKNOWN, /* target headers byte order */
	228	(HAS_RELOC \| EXEC_P \| /* object flags */
	229	HAS_LINENO \| HAS_DEBUG \|
	230	HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),
	231	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
	232	0, /* symbol prefix */
	233	' ', /* ar_pad_char */
	234	16, /* ar_max_namelen */
	235	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
	236	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
	237	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
	238	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
	239	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
	240	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
	241
	242	{ /* bfd_check_format */
	243	_bfd_dummy_target, /* unknown format */
	244	_bfd_dummy_target, /* object file */
	245	_bfd_dummy_target, /* archive */
	246	netbsd_core_file_p /* a core file */
	247	},
	248	{ /* bfd_set_format */
	249	bfd_false, bfd_false,
	250	bfd_false, bfd_false
	251	},
	252	{ /* bfd_write_contents */
	253	bfd_false, bfd_false,
	254	bfd_false, bfd_false
	255	},
1518639e	256
252b5132 RH	257	BFD_JUMP_TABLE_GENERIC (_bfd_generic),
	258	BFD_JUMP_TABLE_COPY (_bfd_generic),
	259	BFD_JUMP_TABLE_CORE (netbsd),
	260	BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
	261	BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
	262	BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
	263	BFD_JUMP_TABLE_WRITE (_bfd_generic),
	264	BFD_JUMP_TABLE_LINK (_bfd_nolink),
	265	BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
	266
c3c89269	267	NULL,
1518639e	268
252b5132 RH	269	(PTR) 0 /* backend_data */
252b5132 RH	270	};