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

/* BFD back end for traditional Unix core files (U-area and raw sections)
   Copyright 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
   Written by John Gilmore of 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* To use this file on a particular host, configure the host with these
   parameters in the config/h-HOST file:

	HDEFINES=-DTRAD_CORE
	HDEPFILES=trad-core.o

 */

#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libaout.h"           /* BFD a.out internal data structures */

#include <stdio.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/dir.h>
#include <signal.h>

#include <sys/user.h>		/* After a.out.h  */
#if 0
/* file.h is included by std-host.h.  So we better not try to include it
   twice; on some systems (dpx2) it is not protected against multiple
   inclusion.  I have checked that all the hosts which use this file
   include sys/file.h in the hosts file.  */
#include <sys/file.h>
#endif

#include <errno.h>

  struct trad_core_struct 
    {
      asection *data_section;
      asection *stack_section;
      asection *reg_section;
      struct user u;
    } *rawptr;

#define core_upage(bfd) (&((bfd)->tdata.trad_core_data->u))
#define core_datasec(bfd) ((bfd)->tdata.trad_core_data->data_section)
#define core_stacksec(bfd) ((bfd)->tdata.trad_core_data->stack_section)
#define core_regsec(bfd) ((bfd)->tdata.trad_core_data->reg_section)

/* forward declarations */

bfd_target *	trad_unix_core_file_p PARAMS ((bfd *abfd));
char *		trad_unix_core_file_failing_command PARAMS ((bfd *abfd));
int		trad_unix_core_file_failing_signal PARAMS ((bfd *abfd));
boolean		trad_unix_core_file_matches_executable_p
			 PARAMS ((bfd *core_bfd, bfd *exec_bfd));

/* Handle 4.2-style (and perhaps also sysV-style) core dump file.  */

/* ARGSUSED */
bfd_target *
trad_unix_core_file_p (abfd)
     bfd *abfd;

{
  int val;
  struct user u;

#ifdef TRAD_CORE_USER_OFFSET
  /* If defined, this macro is the file position of the user struct.  */
  if (bfd_seek (abfd, TRAD_CORE_USER_OFFSET, SEEK_SET) == 0)
    return 0;
#endif
    
  val = bfd_read ((void *)&u, 1, sizeof u, abfd);
  if (val != sizeof u)
    {
      /* Too small to be a core file */
      bfd_error = wrong_format;
      return 0;
    }

  /* Sanity check perhaps??? */
  if (u.u_dsize > 0x1000000)	/* Remember, it's in pages... */
    {
      bfd_error = wrong_format;
      return 0;
    }
  if (u.u_ssize > 0x1000000)
    {
      bfd_error = wrong_format;
      return 0;
    }

  /* Check that the size claimed is no greater than the file size.  */
  {
    FILE *stream = bfd_cache_lookup (abfd);
    struct stat statbuf;
    if (stream == NULL)
      return 0;
    if (fstat (fileno (stream), &statbuf) < 0)
      {
	bfd_error = system_call_error;
	return 0;
      }
    if (NBPG * (UPAGES + u.u_dsize + u.u_ssize) > statbuf.st_size)
      {
	bfd_error = file_truncated;
	return 0;
      }
#ifndef TRAD_CORE_ALLOW_ANY_EXTRA_SIZE
    if (NBPG * (UPAGES + u.u_dsize + u.u_ssize)
#ifdef TRAD_CORE_EXTRA_SIZE_ALLOWED
	/* Some systems write the file too big.  */
	+ TRAD_CORE_EXTRA_SIZE_ALLOWED
#endif
	< statbuf.st_size)
      {
	/* The file is too big.  Maybe it's not a core file
	   or we otherwise have bad values for u_dsize and u_ssize).  */
	bfd_error = wrong_format;
	return 0;
      }
#endif
  }

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

  /* Allocate both the upage and the struct core_data at once, so
     a single free() will free them both.  */
  rawptr = (struct trad_core_struct *)
		bfd_zalloc (abfd, sizeof (struct trad_core_struct));
  if (rawptr == NULL) {
    bfd_error = no_memory;
    return 0;
  }
  
  abfd->tdata.trad_core_data = rawptr;

  rawptr->u = u; /*Copy the uarea into the tdata part of the bfd */

  /* Create the sections.  This is raunchy, but bfd_close wants to free
     them separately.  */

  core_stacksec(abfd) = (asection *) zalloc (sizeof (asection));
  if (core_stacksec (abfd) == NULL) {
  loser:
    bfd_error = no_memory;
    free ((void *)rawptr);
    return 0;
  }
  core_datasec (abfd) = (asection *) zalloc (sizeof (asection));
  if (core_datasec (abfd) == NULL) {
  loser1:
    free ((void *)core_stacksec (abfd));
    goto loser;
  }
  core_regsec (abfd) = (asection *) zalloc (sizeof (asection));
  if (core_regsec (abfd) == NULL) {
    free ((void *)core_datasec (abfd));
    goto loser1;
  }

  core_stacksec (abfd)->name = ".stack";
  core_datasec (abfd)->name = ".data";
  core_regsec (abfd)->name = ".reg";

  core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
  core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
  core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;

  core_datasec (abfd)->_raw_size =  NBPG * u.u_dsize;
  core_stacksec (abfd)->_raw_size = NBPG * u.u_ssize;
  core_regsec (abfd)->_raw_size = NBPG * UPAGES; /* Larger than sizeof struct u */

  /* What a hack... we'd like to steal it from the exec file,
     since the upage does not seem to provide it.  FIXME.  */
#ifdef HOST_DATA_START_ADDR
  core_datasec (abfd)->vma = HOST_DATA_START_ADDR;
#else
  core_datasec (abfd)->vma = HOST_TEXT_START_ADDR + (NBPG * u.u_tsize);
#endif

#ifdef HOST_STACK_START_ADDR
  core_stacksec (abfd)->vma = HOST_STACK_START_ADDR;
#else
  core_stacksec (abfd)->vma = HOST_STACK_END_ADDR - (NBPG * u.u_ssize);
#endif

  /* This is tricky.  As the "register section", we give them the entire
     upage and stack.  u.u_ar0 points to where "register 0" is stored.
     There are two tricks with this, though.  One is that the rest of the
     registers might be at positive or negative (or both) displacements
     from *u_ar0.  The other is that u_ar0 is sometimes an absolute address
     in kernel memory, and on other systems it is an offset from the beginning
     of the `struct user'.
     
     As a practical matter, we don't know where the registers actually are,
     so we have to pass the whole area to GDB.  We encode the value of u_ar0
     by setting the .regs section up so that its virtual memory address
     0 is at the place pointed to by u_ar0 (by setting the vma of the start
     of the section to -u_ar0).  GDB uses this info to locate the regs,
     using minor trickery to get around the offset-or-absolute-addr problem. */
  core_regsec (abfd)->vma = 0 - (int) u.u_ar0;

  core_datasec (abfd)->filepos = NBPG * UPAGES;
#ifdef TRAD_CORE_STACK_FILEPOS
  core_stacksec (abfd)->filepos = TRAD_CORE_STACK_FILEPOS;
#else
  core_stacksec (abfd)->filepos = (NBPG * UPAGES) + NBPG * u.u_dsize;
#endif
  core_regsec (abfd)->filepos = 0; /* Register segment is the upage */

  /* Align to word at least */
  core_stacksec (abfd)->alignment_power = 2;
  core_datasec (abfd)->alignment_power = 2;
  core_regsec (abfd)->alignment_power = 2;

  abfd->sections = core_stacksec (abfd);
  core_stacksec (abfd)->next = core_datasec (abfd);
  core_datasec (abfd)->next = core_regsec (abfd);
  abfd->section_count = 3;

  return abfd->xvec;
}

char *
trad_unix_core_file_failing_command (abfd)
     bfd *abfd;
{
#ifndef NO_CORE_COMMAND
  char *com = abfd->tdata.trad_core_data->u.u_comm;
  if (*com)
    return com;
  else
#endif
    return 0;
}

/* ARGSUSED */
int
trad_unix_core_file_failing_signal (ignore_abfd)
     bfd *ignore_abfd;
{
#ifdef TRAD_UNIX_CORE_FILE_FAILING_SIGNAL
  return TRAD_UNIX_CORE_FILE_FAILING_SIGNAL(ignore_abfd);
#else
  return -1;		/* FIXME, where is it? */
#endif
}

/* ARGSUSED */
boolean
trad_unix_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
/* No archive file support via this BFD */
#define	trad_unix_openr_next_archived_file	bfd_generic_openr_next_archived_file
#define	trad_unix_generic_stat_arch_elt		bfd_generic_stat_arch_elt
#define	trad_unix_slurp_armap			bfd_false
#define	trad_unix_slurp_extended_name_table	bfd_true
#define	trad_unix_write_armap			(boolean (*) PARAMS	\
    ((bfd *arch, unsigned int elength, struct orl *map, \
      unsigned int orl_count, int stridx))) bfd_false
#define	trad_unix_truncate_arname		bfd_dont_truncate_arname
#define	aout_32_openr_next_archived_file	bfd_generic_openr_next_archived_file

#define	trad_unix_close_and_cleanup		bfd_generic_close_and_cleanup
#define	trad_unix_set_section_contents		(boolean (*) PARAMS	\
        ((bfd *abfd, asection *section, PTR data, file_ptr offset,	\
        bfd_size_type count))) bfd_false
#define	trad_unix_get_section_contents		bfd_generic_get_section_contents
#define	trad_unix_new_section_hook		(boolean (*) PARAMS	\
	((bfd *, sec_ptr))) bfd_true
#define	trad_unix_get_symtab_upper_bound	bfd_0u
#define	trad_unix_get_symtab			(unsigned int (*) PARAMS \
        ((bfd *, struct symbol_cache_entry **))) bfd_0u
#define	trad_unix_get_reloc_upper_bound		(unsigned int (*) PARAMS \
	((bfd *, sec_ptr))) bfd_0u
#define	trad_unix_canonicalize_reloc		(unsigned int (*) PARAMS \
	((bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0u
#define	trad_unix_make_empty_symbol		(struct symbol_cache_entry * \
	(*) PARAMS ((bfd *))) bfd_false
#define	trad_unix_print_symbol			(void (*) PARAMS	\
	((bfd *, PTR, struct symbol_cache_entry  *,			\
	bfd_print_symbol_type))) bfd_false
#define	trad_unix_get_symbol_info		(void (*) PARAMS	\
	((bfd *, struct symbol_cache_entry  *,			\
	symbol_info *))) bfd_false
#define	trad_unix_get_lineno			(alent * (*) PARAMS	\
	((bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
#define	trad_unix_set_arch_mach			(boolean (*) PARAMS	\
	((bfd *, enum bfd_architecture, unsigned long))) bfd_false
#define	trad_unix_find_nearest_line		(boolean (*) PARAMS	\
        ((bfd *abfd, struct sec  *section,				\
         struct symbol_cache_entry  **symbols,bfd_vma offset,		\
         CONST char **file, CONST char **func, unsigned int *line))) bfd_false
#define	trad_unix_sizeof_headers		(int (*) PARAMS	\
	((bfd *, boolean))) bfd_0

#define trad_unix_bfd_debug_info_start		bfd_void
#define trad_unix_bfd_debug_info_end		bfd_void
#define trad_unix_bfd_debug_info_accumulate	(void (*) PARAMS	\
	((bfd *, struct sec *))) bfd_void
#define trad_unix_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
#define trad_unix_bfd_relax_section		bfd_generic_relax_section
#define trad_unix_bfd_reloc_type_lookup \
  ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
#define trad_unix_bfd_make_debug_symbol \
  ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
#define trad_unix_bfd_link_hash_table_create \
  ((struct bfd_link_hash_table *(*) PARAMS ((bfd *))) bfd_nullvoidptr)
#define trad_unix_bfd_link_add_symbols \
  ((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
#define trad_unix_bfd_final_link \
  ((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)

/* If somebody calls any byte-swapping routines, shoot them.  */
void
swap_abort()
{
  abort(); /* This way doesn't require any declaration for ANSI to fuck up */
}
#define	NO_GET	((bfd_vma (*) PARAMS ((         bfd_byte *))) swap_abort )
#define	NO_PUT	((void    (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
#define	NO_SIGNED_GET ((bfd_signed_vma (*) PARAMS ((bfd_byte *))) swap_abort )

bfd_target trad_core_vec =
  {
    "trad-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 */
    3,							   /* minimum alignment power */
    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 */
     trad_unix_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
    },
    
    JUMP_TABLE(trad_unix),
    (PTR) 0			/* backend_data */
};
Commit	Line	Data
9712c6e2	1	/* BFD back end for traditional Unix core files (U-area and raw sections)
0dc1bc8b	2	Copyright 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
9712c6e2 SG	3	Written by John Gilmore of Cygnus Support.
	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., 675 Mass Ave, Cambridge, MA 02139, USA. */
ff37ea55	20
6a469027 JG	21	/* To use this file on a particular host, configure the host with these
	22	parameters in the config/h-HOST file:
	23
637942e4	24	HDEFINES=-DTRAD_CORE
6a469027 JG	25	HDEPFILES=trad-core.o
	26
	27	*/
	28
ff37ea55	29	#include "bfd.h"
637942e4	30	#include "sysdep.h"
ff37ea55	31	#include "libbfd.h"
359f1dee	32	#include "libaout.h" /* BFD a.out internal data structures */
ff37ea55	33
637942e4	34	#include <stdio.h>
ff37ea55 JG	35	#include <sys/types.h>
	36	#include <sys/param.h>
	37	#include <sys/dir.h>
	38	#include <signal.h>
ff37ea55 JG	39
ff37ea55 JG	40	#include <sys/user.h> /* After a.out.h */
4d09e8ac JK	41	#if 0
	42	/* file.h is included by std-host.h. So we better not try to include it
	43	twice; on some systems (dpx2) it is not protected against multiple
	44	inclusion. I have checked that all the hosts which use this file
	45	include sys/file.h in the hosts file. */
ff37ea55	46	#include <sys/file.h>
4d09e8ac	47	#endif
ff37ea55 JG	48
	49	#include <errno.h>
	50
1f29e30b JG	51	struct trad_core_struct
	52	{
	53	asection *data_section;
	54	asection *stack_section;
	55	asection *reg_section;
	56	struct user u;
	57	} *rawptr;
	58
	59	#define core_upage(bfd) (&((bfd)->tdata.trad_core_data->u))
	60	#define core_datasec(bfd) ((bfd)->tdata.trad_core_data->data_section)
	61	#define core_stacksec(bfd) ((bfd)->tdata.trad_core_data->stack_section)
	62	#define core_regsec(bfd) ((bfd)->tdata.trad_core_data->reg_section)
	63
	64	/* forward declarations */
ff37ea55	65
1f29e30b JG	66	bfd_target * trad_unix_core_file_p PARAMS ((bfd *abfd));
	67	char * trad_unix_core_file_failing_command PARAMS ((bfd *abfd));
	68	int trad_unix_core_file_failing_signal PARAMS ((bfd *abfd));
	69	boolean trad_unix_core_file_matches_executable_p
	70	PARAMS ((bfd core_bfd, bfd exec_bfd));
6a469027	71
637942e4 JG	72	/* Handle 4.2-style (and perhaps also sysV-style) core dump file. */
637942e4 JG	73
7ed4093a	74	/* ARGSUSED */
ff37ea55 JG	75	bfd_target *
	76	trad_unix_core_file_p (abfd)
	77	bfd *abfd;
1f29e30b	78
ff37ea55	79	{
ff37ea55	80	int val;
ff37ea55	81	struct user u;
ff37ea55	82
4c3721d5 ILT	83	#ifdef TRAD_CORE_USER_OFFSET
	84	/* If defined, this macro is the file position of the user struct. */
	85	if (bfd_seek (abfd, TRAD_CORE_USER_OFFSET, SEEK_SET) == 0)
	86	return 0;
	87	#endif
	88
ff37ea55 JG	89	val = bfd_read ((void *)&u, 1, sizeof u, abfd);
ff37ea55 JG	90	if (val != sizeof u)
31568a6f JK	91	{
	92	/* Too small to be a core file */
	93	bfd_error = wrong_format;
	94	return 0;
	95	}
ff37ea55 JG	96
	97	/* Sanity check perhaps??? */
	98	if (u.u_dsize > 0x1000000) /* Remember, it's in pages... */
31568a6f JK	99	{
	100	bfd_error = wrong_format;
	101	return 0;
	102	}
ff37ea55	103	if (u.u_ssize > 0x1000000)
31568a6f JK	104	{
	105	bfd_error = wrong_format;
	106	return 0;
	107	}
	108
	109	/* Check that the size claimed is no greater than the file size. */
	110	{
	111	FILE *stream = bfd_cache_lookup (abfd);
	112	struct stat statbuf;
	113	if (stream == NULL)
	114	return 0;
	115	if (fstat (fileno (stream), &statbuf) < 0)
	116	{
	117	bfd_error = system_call_error;
	118	return 0;
	119	}
	120	if (NBPG * (UPAGES + u.u_dsize + u.u_ssize) > statbuf.st_size)
	121	{
	122	bfd_error = file_truncated;
	123	return 0;
	124	}
4c3721d5	125	#ifndef TRAD_CORE_ALLOW_ANY_EXTRA_SIZE
4d09e8ac JK	126	if (NBPG * (UPAGES + u.u_dsize + u.u_ssize)
	127	#ifdef TRAD_CORE_EXTRA_SIZE_ALLOWED
	128	/* Some systems write the file too big. */
	129	+ TRAD_CORE_EXTRA_SIZE_ALLOWED
	130	#endif
	131	< statbuf.st_size)
31568a6f JK	132	{
	133	/* The file is too big. Maybe it's not a core file
	134	or we otherwise have bad values for u_dsize and u_ssize). */
	135	bfd_error = wrong_format;
	136	return 0;
	137	}
4c3721d5	138	#endif
31568a6f	139	}
ff37ea55 JG	140
	141	/* OK, we believe you. You're a core file (sure, sure). */
	142
	143	/* Allocate both the upage and the struct core_data at once, so
	144	a single free() will free them both. */
1f29e30b JG	145	rawptr = (struct trad_core_struct *)
1f29e30b JG	146	bfd_zalloc (abfd, sizeof (struct trad_core_struct));
ff37ea55 JG	147	if (rawptr == NULL) {
	148	bfd_error = no_memory;
	149	return 0;
	150	}
	151
1f29e30b JG	152	abfd->tdata.trad_core_data = rawptr;
	153
	154	rawptr->u = u; /Copy the uarea into the tdata part of the bfd /
ff37ea55	155
637942e4 JG	156	/* Create the sections. This is raunchy, but bfd_close wants to free
637942e4 JG	157	them separately. */
1f29e30b JG	158
1f29e30b JG	159	core_stacksec(abfd) = (asection *) zalloc (sizeof (asection));
ff37ea55	160	if (core_stacksec (abfd) == NULL) {
1f29e30b	161	loser:
ff37ea55 JG	162	bfd_error = no_memory;
	163	free ((void *)rawptr);
	164	return 0;
	165	}
	166	core_datasec (abfd) = (asection *) zalloc (sizeof (asection));
	167	if (core_datasec (abfd) == NULL) {
1f29e30b	168	loser1:
ff37ea55 JG	169	free ((void *)core_stacksec (abfd));
	170	goto loser;
	171	}
	172	core_regsec (abfd) = (asection *) zalloc (sizeof (asection));
	173	if (core_regsec (abfd) == NULL) {
ff37ea55 JG	174	free ((void *)core_datasec (abfd));
	175	goto loser1;
	176	}
	177
	178	core_stacksec (abfd)->name = ".stack";
	179	core_datasec (abfd)->name = ".data";
	180	core_regsec (abfd)->name = ".reg";
	181
6a469027 JG	182	core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
	183	core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
	184	core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
ff37ea55	185
1f29e30b JG	186	core_datasec (abfd)->_raw_size = NBPG * u.u_dsize;
	187	core_stacksec (abfd)->_raw_size = NBPG * u.u_ssize;
	188	core_regsec (abfd)->_raw_size = NBPG * UPAGES; /* Larger than sizeof struct u */
ff37ea55 JG	189
	190	/* What a hack... we'd like to steal it from the exec file,
	191	since the upage does not seem to provide it. FIXME. */
9712c6e2 SG	192	#ifdef HOST_DATA_START_ADDR
	193	core_datasec (abfd)->vma = HOST_DATA_START_ADDR;
	194	#else
	195	core_datasec (abfd)->vma = HOST_TEXT_START_ADDR + (NBPG * u.u_tsize);
	196	#endif
4c3721d5 ILT	197
	198	#ifdef HOST_STACK_START_ADDR
	199	core_stacksec (abfd)->vma = HOST_STACK_START_ADDR;
	200	#else
9712c6e2	201	core_stacksec (abfd)->vma = HOST_STACK_END_ADDR - (NBPG * u.u_ssize);
4c3721d5 ILT	202	#endif
4c3721d5 ILT	203
637942e4 JG	204	/* This is tricky. As the "register section", we give them the entire
	205	upage and stack. u.u_ar0 points to where "register 0" is stored.
	206	There are two tricks with this, though. One is that the rest of the
	207	registers might be at positive or negative (or both) displacements
	208	from *u_ar0. The other is that u_ar0 is sometimes an absolute address
	209	in kernel memory, and on other systems it is an offset from the beginning
	210	of the `struct user'.
1f29e30b	211
637942e4 JG	212	As a practical matter, we don't know where the registers actually are,
	213	so we have to pass the whole area to GDB. We encode the value of u_ar0
	214	by setting the .regs section up so that its virtual memory address
	215	0 is at the place pointed to by u_ar0 (by setting the vma of the start
	216	of the section to -u_ar0). GDB uses this info to locate the regs,
	217	using minor trickery to get around the offset-or-absolute-addr problem. */
	218	core_regsec (abfd)->vma = 0 - (int) u.u_ar0;
ff37ea55 JG	219
ff37ea55 JG	220	core_datasec (abfd)->filepos = NBPG * UPAGES;
4c3721d5 ILT	221	#ifdef TRAD_CORE_STACK_FILEPOS
	222	core_stacksec (abfd)->filepos = TRAD_CORE_STACK_FILEPOS;
	223	#else
ff37ea55	224	core_stacksec (abfd)->filepos = (NBPG * UPAGES) + NBPG * u.u_dsize;
4c3721d5	225	#endif
1f29e30b	226	core_regsec (abfd)->filepos = 0; /* Register segment is the upage */
ff37ea55 JG	227
	228	/* Align to word at least */
	229	core_stacksec (abfd)->alignment_power = 2;
	230	core_datasec (abfd)->alignment_power = 2;
	231	core_regsec (abfd)->alignment_power = 2;
	232
	233	abfd->sections = core_stacksec (abfd);
	234	core_stacksec (abfd)->next = core_datasec (abfd);
	235	core_datasec (abfd)->next = core_regsec (abfd);
	236	abfd->section_count = 3;
	237
	238	return abfd->xvec;
ff37ea55 JG	239	}
	240
	241	char *
	242	trad_unix_core_file_failing_command (abfd)
	243	bfd *abfd;
	244	{
1f29e30b JG	245	#ifndef NO_CORE_COMMAND
	246	char *com = abfd->tdata.trad_core_data->u.u_comm;
	247	if (*com)
	248	return com;
ff37ea55	249	else
1f29e30b	250	#endif
ff37ea55 JG	251	return 0;
	252	}
	253
7ed4093a	254	/* ARGSUSED */
ff37ea55	255	int
7ed4093a SC	256	trad_unix_core_file_failing_signal (ignore_abfd)
7ed4093a SC	257	bfd *ignore_abfd;
ff37ea55	258	{
31568a6f JK	259	#ifdef TRAD_UNIX_CORE_FILE_FAILING_SIGNAL
	260	return TRAD_UNIX_CORE_FILE_FAILING_SIGNAL(ignore_abfd);
	261	#else
ff37ea55	262	return -1; /* FIXME, where is it? */
31568a6f	263	#endif
ff37ea55 JG	264	}
ff37ea55 JG	265
7ed4093a	266	/* ARGSUSED */
ff37ea55 JG	267	boolean
	268	trad_unix_core_file_matches_executable_p (core_bfd, exec_bfd)
	269	bfd core_bfd, exec_bfd;
	270	{
	271	return true; /* FIXME, We have no way of telling at this point */
	272	}
6a469027 JG	273	\f
	274	/* No archive file support via this BFD */
	275	#define trad_unix_openr_next_archived_file bfd_generic_openr_next_archived_file
	276	#define trad_unix_generic_stat_arch_elt bfd_generic_stat_arch_elt
	277	#define trad_unix_slurp_armap bfd_false
	278	#define trad_unix_slurp_extended_name_table bfd_true
1f29e30b JG	279	#define trad_unix_write_armap (boolean (*) PARAMS \
	280	((bfd arch, unsigned int elength, struct orl map, \
	281	unsigned int orl_count, int stridx))) bfd_false
6a469027 JG	282	#define trad_unix_truncate_arname bfd_dont_truncate_arname
	283	#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
	284
	285	#define trad_unix_close_and_cleanup bfd_generic_close_and_cleanup
1f29e30b JG	286	#define trad_unix_set_section_contents (boolean (*) PARAMS \
	287	((bfd abfd, asection section, PTR data, file_ptr offset, \
	288	bfd_size_type count))) bfd_false
6a469027	289	#define trad_unix_get_section_contents bfd_generic_get_section_contents
1f29e30b JG	290	#define trad_unix_new_section_hook (boolean (*) PARAMS \
1f29e30b JG	291	((bfd *, sec_ptr))) bfd_true
6a469027	292	#define trad_unix_get_symtab_upper_bound bfd_0u
1f29e30b JG	293	#define trad_unix_get_symtab (unsigned int (*) PARAMS \
	294	((bfd , struct symbol_cache_entry *))) bfd_0u
	295	#define trad_unix_get_reloc_upper_bound (unsigned int (*) PARAMS \
	296	((bfd *, sec_ptr))) bfd_0u
	297	#define trad_unix_canonicalize_reloc (unsigned int (*) PARAMS \
	298	((bfd , sec_ptr, arelent , struct symbol_cache_entry*))) bfd_0u
	299	#define trad_unix_make_empty_symbol (struct symbol_cache_entry * \
31568a6f	300	() PARAMS ((bfd ))) bfd_false
1f29e30b JG	301	#define trad_unix_print_symbol (void (*) PARAMS \
	302	((bfd , PTR, struct symbol_cache_entry , \
	303	bfd_print_symbol_type))) bfd_false
4d09e8ac JK	304	#define trad_unix_get_symbol_info (void (*) PARAMS \
	305	((bfd , struct symbol_cache_entry , \
	306	symbol_info *))) bfd_false
1f29e30b JG	307	#define trad_unix_get_lineno (alent * (*) PARAMS \
	308	((bfd , struct symbol_cache_entry ))) bfd_nullvoidptr
	309	#define trad_unix_set_arch_mach (boolean (*) PARAMS \
0dc1bc8b	310	((bfd *, enum bfd_architecture, unsigned long))) bfd_false
1f29e30b	311	#define trad_unix_find_nearest_line (boolean (*) PARAMS \
0dc1bc8b	312	((bfd abfd, struct sec section, \
6a469027 JG	313	struct symbol_cache_entry **symbols,bfd_vma offset, \
6a469027 JG	314	CONST char file, CONST char func, unsigned int *line))) bfd_false
1f29e30b	315	#define trad_unix_sizeof_headers (int (*) PARAMS \
0dc1bc8b	316	((bfd *, boolean))) bfd_0
6a469027 JG	317
	318	#define trad_unix_bfd_debug_info_start bfd_void
	319	#define trad_unix_bfd_debug_info_end bfd_void
1f29e30b	320	#define trad_unix_bfd_debug_info_accumulate (void (*) PARAMS \
0dc1bc8b	321	((bfd , struct sec ))) bfd_void
1f29e30b JG	322	#define trad_unix_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
1f29e30b JG	323	#define trad_unix_bfd_relax_section bfd_generic_relax_section
31568a6f JK	324	#define trad_unix_bfd_reloc_type_lookup \
	325	((CONST struct reloc_howto_struct () PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
	326	#define trad_unix_bfd_make_debug_symbol \
	327	((asymbol () PARAMS ((bfd , void , unsigned long))) bfd_nullvoidptr)
4c3721d5 ILT	328	#define trad_unix_bfd_link_hash_table_create \
	329	((struct bfd_link_hash_table () PARAMS ((bfd *))) bfd_nullvoidptr)
	330	#define trad_unix_bfd_link_add_symbols \
	331	((boolean () PARAMS ((bfd , struct bfd_link_info *))) bfd_false)
	332	#define trad_unix_bfd_final_link \
	333	((boolean () PARAMS ((bfd , struct bfd_link_info *))) bfd_false)
0dc1bc8b	334
637942e4 JG	335	/* If somebody calls any byte-swapping routines, shoot them. */
	336	void
	337	swap_abort()
	338	{
	339	abort(); /* This way doesn't require any declaration for ANSI to fuck up */
	340	}
1f29e30b JG	341	#define NO_GET ((bfd_vma () PARAMS (( bfd_byte ))) swap_abort )
1f29e30b JG	342	#define NO_PUT ((void () PARAMS ((bfd_vma, bfd_byte ))) swap_abort )
4d09e8ac	343	#define NO_SIGNED_GET ((bfd_signed_vma () PARAMS ((bfd_byte ))) swap_abort )
6a469027	344
637942e4	345	bfd_target trad_core_vec =
6a469027	346	{
637942e4	347	"trad-core",
6a469027 JG	348	bfd_target_unknown_flavour,
	349	true, /* target byte order */
	350	true, /* target headers byte order */
	351	(HAS_RELOC \| EXEC_P \| /* object flags */
	352	HAS_LINENO \| HAS_DEBUG \|
4c3721d5	353	HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),
6a469027	354	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
0dc1bc8b	355	0, /* symbol prefix */
6a469027 JG	356	' ', /* ar_pad_char */
	357	16, /* ar_max_namelen */
	358	3, /* minimum alignment power */
4d09e8ac JK	359	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
	360	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
	361	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
	362	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
	363	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
	364	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
31568a6f JK	365
	366	{ /* bfd_check_format */
	367	_bfd_dummy_target, /* unknown format */
	368	_bfd_dummy_target, /* object file */
	369	_bfd_dummy_target, /* archive */
	370	trad_unix_core_file_p /* a core file */
	371	},
	372	{ /* bfd_set_format */
	373	bfd_false, bfd_false,
	374	bfd_false, bfd_false
	375	},
	376	{ /* bfd_write_contents */
	377	bfd_false, bfd_false,
	378	bfd_false, bfd_false
	379	},
6a469027	380
31568a6f JK	381	JUMP_TABLE(trad_unix),
31568a6f JK	382	(PTR) 0 /* backend_data */
6a469027	383	};