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

/* BFD back-end for OSF/1 core files.
   Copyright 1993, 1994 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 <stdio.h>
#include <string.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 = (asymbol *) bfd_zalloc (abfd, 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;

  val = bfd_read ((PTR)&core_header, 1, sizeof core_header, 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, 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;

      val = bfd_read ((PTR)&core_scnhdr, 1, sizeof core_scnhdr, 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:
	  fprintf (stderr, "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, *exec_bfd;
{
  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 _bfd_nosymbols_bfd_is_local_label
#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,
    true,			/* target byte order */
    true,			/* 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),

    (PTR) 0			/* backend_data */
};
Commit	Line	Data
4c3721d5	1	/* BFD back-end for OSF/1 core files.
a5655244	2	Copyright 1993, 1994 Free Software Foundation, Inc.
4c3721d5 ILT	3
	4	This file is part of BFD, the Binary File Descriptor library.
	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software
a5655244	18	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
4c3721d5 ILT	19
4c3721d5 ILT	20	/* This file can only be compiled on systems which use OSF/1 style
a5655244	21	core files. */
4c3721d5 ILT	22
	23	#include "bfd.h"
	24	#include "sysdep.h"
	25	#include "libbfd.h"
	26
	27	#include <stdio.h>
	28	#include <string.h>
	29	#include <sys/user.h>
	30	#include <sys/core.h>
	31
	32	/* forward declarations */
	33
	34	static asection *
	35	make_bfd_asection PARAMS ((bfd , CONST char , flagword, bfd_size_type,
	36	bfd_vma, file_ptr));
	37	static asymbol *
	38	osf_core_make_empty_symbol PARAMS ((bfd *));
a5655244	39	static const bfd_target *
4c3721d5 ILT	40	osf_core_core_file_p PARAMS ((bfd *));
	41	static char *
	42	osf_core_core_file_failing_command PARAMS ((bfd *));
	43	static int
	44	osf_core_core_file_failing_signal PARAMS ((bfd *));
	45	static boolean
	46	osf_core_core_file_matches_executable_p PARAMS ((bfd , bfd ));
	47	static void
	48	swap_abort PARAMS ((void));
	49
	50	/* These are stored in the bfd's tdata */
	51
	52	struct osf_core_struct
	53	{
	54	int sig;
	55	char cmd[MAXCOMLEN + 1];
	56	};
	57
	58	#define core_hdr(bfd) ((bfd)->tdata.osf_core_data)
	59	#define core_signal(bfd) (core_hdr(bfd)->sig)
	60	#define core_command(bfd) (core_hdr(bfd)->cmd)
	61
	62	static asection *
	63	make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
	64	bfd *abfd;
	65	CONST char *name;
	66	flagword flags;
	67	bfd_size_type _raw_size;
	68	bfd_vma vma;
	69	file_ptr filepos;
	70	{
	71	asection *asect;
	72
a5655244	73	asect = bfd_make_section_anyway (abfd, name);
4c3721d5 ILT	74	if (!asect)
	75	return NULL;
	76
	77	asect->flags = flags;
	78	asect->_raw_size = _raw_size;
	79	asect->vma = vma;
	80	asect->filepos = filepos;
	81	asect->alignment_power = 8;
	82
	83	return asect;
	84	}
	85
	86	static asymbol *
	87	osf_core_make_empty_symbol (abfd)
	88	bfd *abfd;
	89	{
	90	asymbol new = (asymbol ) bfd_zalloc (abfd, sizeof (asymbol));
9783e04a DM	91	if (new)
9783e04a DM	92	new->the_bfd = abfd;
4c3721d5 ILT	93	return new;
	94	}
	95
a5655244	96	static const bfd_target *
4c3721d5 ILT	97	osf_core_core_file_p (abfd)
	98	bfd *abfd;
	99	{
	100	int val;
	101	int i;
	102	char *secname;
	103	struct core_filehdr core_header;
4c3721d5 ILT	104
	105	val = bfd_read ((PTR)&core_header, 1, sizeof core_header, abfd);
	106	if (val != sizeof core_header)
	107	return NULL;
	108
	109	if (strncmp (core_header.magic, "Core", 4) != 0)
	110	return NULL;
	111
	112	core_hdr (abfd) = (struct osf_core_struct *)
	113	bfd_zalloc (abfd, sizeof (struct osf_core_struct));
	114	if (!core_hdr (abfd))
	115	return NULL;
	116
	117	strncpy (core_command (abfd), core_header.name, MAXCOMLEN + 1);
	118	core_signal (abfd) = core_header.signo;
	119
	120	for (i = 0; i < core_header.nscns; i++)
	121	{
	122	struct core_scnhdr core_scnhdr;
a5655244	123	flagword flags;
4c3721d5 ILT	124
	125	val = bfd_read ((PTR)&core_scnhdr, 1, sizeof core_scnhdr, abfd);
	126	if (val != sizeof core_scnhdr)
	127	break;
	128
	129	/* Skip empty sections. */
	130	if (core_scnhdr.size == 0 \|\| core_scnhdr.scnptr == 0)
	131	continue;
	132
	133	switch (core_scnhdr.scntype)
	134	{
	135	case SCNRGN:
a5655244 ILT	136	secname = ".data";
a5655244 ILT	137	flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
4c3721d5 ILT	138	break;
	139	case SCNSTACK:
	140	secname = ".stack";
a5655244	141	flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
4c3721d5 ILT	142	break;
	143	case SCNREGS:
	144	secname = ".reg";
a5655244	145	flags = SEC_HAS_CONTENTS;
4c3721d5 ILT	146	break;
	147	default:
	148	fprintf (stderr, "Unhandled OSF/1 core file section type %d\n",
	149	core_scnhdr.scntype);
	150	continue;
	151	}
	152
a5655244	153	if (!make_bfd_asection (abfd, secname, flags,
4c3721d5 ILT	154	(bfd_size_type) core_scnhdr.size,
	155	(bfd_vma) core_scnhdr.vaddr,
	156	(file_ptr) core_scnhdr.scnptr))
	157	return NULL;
	158	}
	159
	160	/* OK, we believe you. You're a core file (sure, sure). */
	161
	162	return abfd->xvec;
	163	}
	164
	165	static char *
	166	osf_core_core_file_failing_command (abfd)
	167	bfd *abfd;
	168	{
	169	return core_command (abfd);
	170	}
	171
	172	/* ARGSUSED */
	173	static int
	174	osf_core_core_file_failing_signal (abfd)
	175	bfd *abfd;
	176	{
	177	return core_signal (abfd);
	178	}
	179
	180	/* ARGSUSED */
	181	static boolean
	182	osf_core_core_file_matches_executable_p (core_bfd, exec_bfd)
	183	bfd core_bfd, exec_bfd;
	184	{
	185	return true; /* FIXME, We have no way of telling at this point */
	186	}
	187	\f
6812b607 ILT	188	#define osf_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound
	189	#define osf_core_get_symtab _bfd_nosymbols_get_symtab
	190	#define osf_core_print_symbol _bfd_nosymbols_print_symbol
	191	#define osf_core_get_symbol_info _bfd_nosymbols_get_symbol_info
	192	#define osf_core_bfd_is_local_label _bfd_nosymbols_bfd_is_local_label
	193	#define osf_core_get_lineno _bfd_nosymbols_get_lineno
	194	#define osf_core_find_nearest_line _bfd_nosymbols_find_nearest_line
	195	#define osf_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
a5655244 ILT	196	#define osf_core_read_minisymbols _bfd_nosymbols_read_minisymbols
a5655244 ILT	197	#define osf_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
4c3721d5 ILT	198
	199	/* If somebody calls any byte-swapping routines, shoot them. */
	200	static void
	201	swap_abort()
	202	{
	203	abort(); /* This way doesn't require any declaration for ANSI to fuck up */
	204	}
9783e04a	205	#define NO_GET ((bfd_vma () PARAMS (( const bfd_byte ))) swap_abort )
4c3721d5	206	#define NO_PUT ((void () PARAMS ((bfd_vma, bfd_byte ))) swap_abort )
9783e04a DM	207	#define NO_SIGNED_GET \
9783e04a DM	208	((bfd_signed_vma () PARAMS ((const bfd_byte ))) swap_abort )
4c3721d5	209
a5655244	210	const bfd_target osf_core_vec =
4c3721d5 ILT	211	{
	212	"osf-core",
	213	bfd_target_unknown_flavour,
	214	true, /* target byte order */
	215	true, /* target headers byte order */
	216	(HAS_RELOC \| EXEC_P \| /* object flags */
	217	HAS_LINENO \| HAS_DEBUG \|
	218	HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),
	219	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
	220	0, /* symbol prefix */
	221	' ', /* ar_pad_char */
	222	16, /* ar_max_namelen */
4c3721d5 ILT	223	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
	224	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
	225	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
	226	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
	227	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
	228	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
	229
	230	{ /* bfd_check_format */
	231	_bfd_dummy_target, /* unknown format */
	232	_bfd_dummy_target, /* object file */
	233	_bfd_dummy_target, /* archive */
	234	osf_core_core_file_p /* a core file */
	235	},
	236	{ /* bfd_set_format */
	237	bfd_false, bfd_false,
	238	bfd_false, bfd_false
	239	},
	240	{ /* bfd_write_contents */
	241	bfd_false, bfd_false,
	242	bfd_false, bfd_false
	243	},
	244
6812b607 ILT	245	BFD_JUMP_TABLE_GENERIC (_bfd_generic),
	246	BFD_JUMP_TABLE_COPY (_bfd_generic),
	247	BFD_JUMP_TABLE_CORE (osf_core),
	248	BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
	249	BFD_JUMP_TABLE_SYMBOLS (osf_core),
	250	BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
	251	BFD_JUMP_TABLE_WRITE (_bfd_generic),
	252	BFD_JUMP_TABLE_LINK (_bfd_nolink),
a5655244	253	BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
6812b607	254
4c3721d5 ILT	255	(PTR) 0 /* backend_data */
4c3721d5 ILT	256	};