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

/* BFD back-end for OSF/1 core files.
   Copyright 1993, 1994, 1995, 1998, 1999, 2001
   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 asymbol *
osf_core_make_empty_symbol PARAMS ((bfd *));
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 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 asymbol *
osf_core_make_empty_symbol (abfd)
     bfd *abfd;
{
  asymbol *new;

  new = (asymbol *) bfd_zalloc (abfd, (bfd_size_type) sizeof (asymbol));
  if (new)
    new->the_bfd = abfd;
  return new;
}

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))
	return NULL;
    }

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

  return abfd->xvec;
}

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

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

/* ARGSUSED */
static 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
#define osf_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound
#define osf_core_get_symtab _bfd_nosymbols_get_symtab
#define osf_core_print_symbol _bfd_nosymbols_print_symbol
#define osf_core_get_symbol_info _bfd_nosymbols_get_symbol_info
#define osf_core_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
#define osf_core_get_lineno _bfd_nosymbols_get_lineno
#define osf_core_find_nearest_line _bfd_nosymbols_find_nearest_line
#define osf_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
#define osf_core_read_minisymbols _bfd_nosymbols_read_minisymbols
#define osf_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol

/* 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_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 */
     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 (osf_core),
       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.
dc810e39 AM	2	Copyright 1993, 1994, 1995, 1998, 1999, 2001
dc810e39 AM	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
	33	static asection *
dc810e39	34	make_bfd_asection PARAMS ((bfd , const char , flagword, bfd_size_type,
252b5132 RH	35	bfd_vma, file_ptr));
	36	static asymbol *
	37	osf_core_make_empty_symbol PARAMS ((bfd *));
	38	static const bfd_target *
	39	osf_core_core_file_p PARAMS ((bfd *));
	40	static char *
	41	osf_core_core_file_failing_command PARAMS ((bfd *));
	42	static int
	43	osf_core_core_file_failing_signal PARAMS ((bfd *));
	44	static boolean
	45	osf_core_core_file_matches_executable_p PARAMS ((bfd , bfd ));
	46	static void
	47	swap_abort PARAMS ((void));
	48
	49	/* These are stored in the bfd's tdata */
	50
dc810e39	51	struct osf_core_struct
252b5132 RH	52	{
	53	int sig;
	54	char cmd[MAXCOMLEN + 1];
	55	};
	56
	57	#define core_hdr(bfd) ((bfd)->tdata.osf_core_data)
	58	#define core_signal(bfd) (core_hdr(bfd)->sig)
	59	#define core_command(bfd) (core_hdr(bfd)->cmd)
	60
	61	static asection *
	62	make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
	63	bfd *abfd;
dc810e39	64	const char *name;
252b5132 RH	65	flagword flags;
	66	bfd_size_type _raw_size;
	67	bfd_vma vma;
	68	file_ptr filepos;
	69	{
	70	asection *asect;
	71
	72	asect = bfd_make_section_anyway (abfd, name);
	73	if (!asect)
	74	return NULL;
	75
	76	asect->flags = flags;
	77	asect->_raw_size = _raw_size;
	78	asect->vma = vma;
	79	asect->filepos = filepos;
	80	asect->alignment_power = 8;
	81
	82	return asect;
	83	}
	84
	85	static asymbol *
	86	osf_core_make_empty_symbol (abfd)
	87	bfd *abfd;
	88	{
dc810e39 AM	89	asymbol *new;
	90
	91	new = (asymbol *) bfd_zalloc (abfd, (bfd_size_type) sizeof (asymbol));
252b5132 RH	92	if (new)
	93	new->the_bfd = abfd;
	94	return new;
	95	}
	96
	97	static const bfd_target *
	98	osf_core_core_file_p (abfd)
	99	bfd *abfd;
	100	{
	101	int val;
	102	int i;
	103	char *secname;
	104	struct core_filehdr core_header;
dc810e39	105	bfd_size_type amt;
252b5132	106
dc810e39 AM	107	amt = sizeof core_header;
dc810e39 AM	108	val = bfd_bread ((PTR) &core_header, amt, abfd);
252b5132 RH	109	if (val != sizeof core_header)
	110	return NULL;
	111
	112	if (strncmp (core_header.magic, "Core", 4) != 0)
	113	return NULL;
	114
	115	core_hdr (abfd) = (struct osf_core_struct *)
dc810e39	116	bfd_zalloc (abfd, (bfd_size_type) sizeof (struct osf_core_struct));
252b5132 RH	117	if (!core_hdr (abfd))
	118	return NULL;
	119
	120	strncpy (core_command (abfd), core_header.name, MAXCOMLEN + 1);
	121	core_signal (abfd) = core_header.signo;
	122
	123	for (i = 0; i < core_header.nscns; i++)
	124	{
	125	struct core_scnhdr core_scnhdr;
	126	flagword flags;
	127
dc810e39 AM	128	amt = sizeof core_scnhdr;
dc810e39 AM	129	val = bfd_bread ((PTR) &core_scnhdr, amt, abfd);
252b5132 RH	130	if (val != sizeof core_scnhdr)
	131	break;
	132
	133	/* Skip empty sections. */
	134	if (core_scnhdr.size == 0 \|\| core_scnhdr.scnptr == 0)
	135	continue;
	136
	137	switch (core_scnhdr.scntype)
	138	{
	139	case SCNRGN:
	140	secname = ".data";
	141	flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
	142	break;
	143	case SCNSTACK:
	144	secname = ".stack";
	145	flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
	146	break;
	147	case SCNREGS:
	148	secname = ".reg";
	149	flags = SEC_HAS_CONTENTS;
	150	break;
	151	default:
	152	(*_bfd_error_handler) (_("Unhandled OSF/1 core file section type %d\n"),
	153	core_scnhdr.scntype);
	154	continue;
	155	}
	156
	157	if (!make_bfd_asection (abfd, secname, flags,
	158	(bfd_size_type) core_scnhdr.size,
	159	(bfd_vma) core_scnhdr.vaddr,
	160	(file_ptr) core_scnhdr.scnptr))
	161	return NULL;
	162	}
	163
	164	/* OK, we believe you. You're a core file (sure, sure). */
	165
	166	return abfd->xvec;
	167	}
	168
	169	static char *
	170	osf_core_core_file_failing_command (abfd)
	171	bfd *abfd;
	172	{
	173	return core_command (abfd);
	174	}
	175
	176	/* ARGSUSED */
	177	static int
	178	osf_core_core_file_failing_signal (abfd)
	179	bfd *abfd;
	180	{
	181	return core_signal (abfd);
	182	}
	183
	184	/* ARGSUSED */
	185	static boolean
	186	osf_core_core_file_matches_executable_p (core_bfd, exec_bfd)
dc810e39 AM	187	bfd *core_bfd ATTRIBUTE_UNUSED;
dc810e39 AM	188	bfd *exec_bfd ATTRIBUTE_UNUSED;
252b5132 RH	189	{
	190	return true; /* FIXME, We have no way of telling at this point */
	191	}
	192	\f
	193	#define osf_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound
	194	#define osf_core_get_symtab _bfd_nosymbols_get_symtab
	195	#define osf_core_print_symbol _bfd_nosymbols_print_symbol
	196	#define osf_core_get_symbol_info _bfd_nosymbols_get_symbol_info
	197	#define osf_core_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
	198	#define osf_core_get_lineno _bfd_nosymbols_get_lineno
	199	#define osf_core_find_nearest_line _bfd_nosymbols_find_nearest_line
	200	#define osf_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
	201	#define osf_core_read_minisymbols _bfd_nosymbols_read_minisymbols
	202	#define osf_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
	203
	204	/* If somebody calls any byte-swapping routines, shoot them. */
	205	static void
	206	swap_abort()
	207	{
	208	abort(); /* This way doesn't require any declaration for ANSI to fuck up */
	209	}
	210	#define NO_GET ((bfd_vma () PARAMS (( const bfd_byte ))) swap_abort )
	211	#define NO_PUT ((void () PARAMS ((bfd_vma, bfd_byte ))) swap_abort )
	212	#define NO_SIGNED_GET \
	213	((bfd_signed_vma () PARAMS ((const bfd_byte ))) swap_abort )
	214
	215	const bfd_target osf_core_vec =
	216	{
	217	"osf-core",
	218	bfd_target_unknown_flavour,
	219	BFD_ENDIAN_BIG, /* target byte order */
	220	BFD_ENDIAN_BIG, /* target headers byte order */
	221	(HAS_RELOC \| EXEC_P \| /* object flags */
	222	HAS_LINENO \| HAS_DEBUG \|
	223	HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),
	224	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
	225	0, /* symbol prefix */
	226	' ', /* ar_pad_char */
	227	16, /* ar_max_namelen */
	228	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
	229	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
	230	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
	231	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
	232	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
	233	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
	234
	235	{ /* bfd_check_format */
	236	_bfd_dummy_target, /* unknown format */
	237	_bfd_dummy_target, /* object file */
	238	_bfd_dummy_target, /* archive */
	239	osf_core_core_file_p /* a core file */
	240	},
	241	{ /* bfd_set_format */
	242	bfd_false, bfd_false,
	243	bfd_false, bfd_false
	244	},
	245	{ /* bfd_write_contents */
	246	bfd_false, bfd_false,
	247	bfd_false, bfd_false
	248	},
dc810e39	249
252b5132 RH	250	BFD_JUMP_TABLE_GENERIC (_bfd_generic),
	251	BFD_JUMP_TABLE_COPY (_bfd_generic),
	252	BFD_JUMP_TABLE_CORE (osf_core),
	253	BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
	254	BFD_JUMP_TABLE_SYMBOLS (osf_core),
	255	BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
	256	BFD_JUMP_TABLE_WRITE (_bfd_generic),
	257	BFD_JUMP_TABLE_LINK (_bfd_nolink),
	258	BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
	259
c3c89269	260	NULL,
dc810e39	261
252b5132 RH	262	(PTR) 0 /* backend_data */
252b5132 RH	263	};