[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_set_error (bfd_error_wrong_format);
      return 0;
    }

  /* Sanity check perhaps??? */
  if (u.u_dsize > 0x1000000)	/* Remember, it's in pages... */
    {
      bfd_set_error (bfd_error_wrong_format);
      return 0;
    }
  if (u.u_ssize > 0x1000000)
    {
      bfd_set_error (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_set_error (bfd_error_system_call);
	return 0;
      }
    if (NBPG * (UPAGES + u.u_dsize
#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
		- u.u_tsize
#endif
		+ u.u_ssize) > statbuf.st_size)
      {
	bfd_set_error (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_set_error (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_zmalloc (abfd, sizeof (struct trad_core_struct));
  if (rawptr == NULL) {
    bfd_set_error (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 *) bfd_zmalloc (sizeof (asection));
  if (core_stacksec (abfd) == NULL) {
  loser:
    bfd_set_error (bfd_error_no_memory);
    free ((void *)rawptr);
    return 0;
  }
  core_datasec (abfd) = (asection *) bfd_zmalloc (sizeof (asection));
  if (core_datasec (abfd) == NULL) {
  loser1:
    free ((void *)core_stacksec (abfd));
    goto loser;
  }
  core_regsec (abfd) = (asection *) bfd_zmalloc (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
#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
    - NBPG * u.u_tsize
#endif
      ;
  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;
  core_stacksec (abfd)->filepos = (NBPG * UPAGES) + NBPG * u.u_dsize
#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
    - NBPG * u.u_tsize
#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_generic_set_section_contents
#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)
#define trad_unix_bfd_copy_private_section_data \
  ((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_false)
#define trad_unix_bfd_copy_private_bfd_data \
  ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_false)
#define trad_unix_bfd_is_local_label \
  ((boolean (*) PARAMS ((bfd *, asection *))) 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 ((   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 )

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
4c3721d5 ILT	84	/* If defined, this macro is the file position of the user struct. */
baf200d4	85	if (bfd_seek (abfd, TRAD_CORE_USER_OFFSET, SEEK_SET) != 0)
4c3721d5 ILT	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	{
31568a6f JK	92	/* Too small to be a core file */
baf200d4	93	bfd_set_error (bfd_error_wrong_format);
31568a6f JK	94	return 0;
31568a6f JK	95	}
ff37ea55 JG	96
	97	/* Sanity check perhaps??? */
	98	if (u.u_dsize > 0x1000000) /* Remember, it's in pages... */
31568a6f	99	{
baf200d4	100	bfd_set_error (bfd_error_wrong_format);
31568a6f JK	101	return 0;
31568a6f JK	102	}
ff37ea55	103	if (u.u_ssize > 0x1000000)
31568a6f	104	{
baf200d4	105	bfd_set_error (bfd_error_wrong_format);
31568a6f JK	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	{
baf200d4	117	bfd_set_error (bfd_error_system_call);
31568a6f JK	118	return 0;
31568a6f JK	119	}
baf200d4 JK	120	if (NBPG * (UPAGES + u.u_dsize
	121	#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
	122	- u.u_tsize
	123	#endif
	124	+ u.u_ssize) > statbuf.st_size)
31568a6f	125	{
baf200d4	126	bfd_set_error (bfd_error_file_truncated);
31568a6f JK	127	return 0;
31568a6f JK	128	}
4c3721d5	129	#ifndef TRAD_CORE_ALLOW_ANY_EXTRA_SIZE
4d09e8ac JK	130	if (NBPG * (UPAGES + u.u_dsize + u.u_ssize)
	131	#ifdef TRAD_CORE_EXTRA_SIZE_ALLOWED
	132	/* Some systems write the file too big. */
	133	+ TRAD_CORE_EXTRA_SIZE_ALLOWED
	134	#endif
	135	< statbuf.st_size)
31568a6f JK	136	{
	137	/* The file is too big. Maybe it's not a core file
	138	or we otherwise have bad values for u_dsize and u_ssize). */
baf200d4	139	bfd_set_error (bfd_error_wrong_format);
31568a6f JK	140	return 0;
31568a6f JK	141	}
4c3721d5	142	#endif
31568a6f	143	}
ff37ea55 JG	144
	145	/* OK, we believe you. You're a core file (sure, sure). */
	146
	147	/* Allocate both the upage and the struct core_data at once, so
	148	a single free() will free them both. */
1f29e30b	149	rawptr = (struct trad_core_struct *)
f3f29240	150	bfd_zmalloc (abfd, sizeof (struct trad_core_struct));
ff37ea55	151	if (rawptr == NULL) {
baf200d4	152	bfd_set_error (bfd_error_no_memory);
ff37ea55 JG	153	return 0;
	154	}
	155
1f29e30b JG	156	abfd->tdata.trad_core_data = rawptr;
	157
	158	rawptr->u = u; /Copy the uarea into the tdata part of the bfd /
ff37ea55	159
637942e4 JG	160	/* Create the sections. This is raunchy, but bfd_close wants to free
637942e4 JG	161	them separately. */
1f29e30b	162
baf200d4	163	core_stacksec(abfd) = (asection *) bfd_zmalloc (sizeof (asection));
ff37ea55	164	if (core_stacksec (abfd) == NULL) {
1f29e30b	165	loser:
baf200d4	166	bfd_set_error (bfd_error_no_memory);
ff37ea55 JG	167	free ((void *)rawptr);
	168	return 0;
	169	}
baf200d4	170	core_datasec (abfd) = (asection *) bfd_zmalloc (sizeof (asection));
ff37ea55	171	if (core_datasec (abfd) == NULL) {
1f29e30b	172	loser1:
ff37ea55 JG	173	free ((void *)core_stacksec (abfd));
	174	goto loser;
	175	}
baf200d4	176	core_regsec (abfd) = (asection *) bfd_zmalloc (sizeof (asection));
ff37ea55	177	if (core_regsec (abfd) == NULL) {
ff37ea55 JG	178	free ((void *)core_datasec (abfd));
	179	goto loser1;
	180	}
	181
	182	core_stacksec (abfd)->name = ".stack";
	183	core_datasec (abfd)->name = ".data";
	184	core_regsec (abfd)->name = ".reg";
	185
6a469027 JG	186	core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
	187	core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
	188	core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
ff37ea55	189
baf200d4 JK	190	core_datasec (abfd)->_raw_size = NBPG * u.u_dsize
	191	#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
	192	- NBPG * u.u_tsize
	193	#endif
	194	;
1f29e30b JG	195	core_stacksec (abfd)->_raw_size = NBPG * u.u_ssize;
1f29e30b JG	196	core_regsec (abfd)->_raw_size = NBPG * UPAGES; /* Larger than sizeof struct u */
ff37ea55 JG	197
	198	/* What a hack... we'd like to steal it from the exec file,
	199	since the upage does not seem to provide it. FIXME. */
9712c6e2 SG	200	#ifdef HOST_DATA_START_ADDR
	201	core_datasec (abfd)->vma = HOST_DATA_START_ADDR;
	202	#else
	203	core_datasec (abfd)->vma = HOST_TEXT_START_ADDR + (NBPG * u.u_tsize);
	204	#endif
4c3721d5 ILT	205
	206	#ifdef HOST_STACK_START_ADDR
	207	core_stacksec (abfd)->vma = HOST_STACK_START_ADDR;
	208	#else
9712c6e2	209	core_stacksec (abfd)->vma = HOST_STACK_END_ADDR - (NBPG * u.u_ssize);
4c3721d5 ILT	210	#endif
4c3721d5 ILT	211
637942e4 JG	212	/* This is tricky. As the "register section", we give them the entire
	213	upage and stack. u.u_ar0 points to where "register 0" is stored.
	214	There are two tricks with this, though. One is that the rest of the
	215	registers might be at positive or negative (or both) displacements
	216	from *u_ar0. The other is that u_ar0 is sometimes an absolute address
	217	in kernel memory, and on other systems it is an offset from the beginning
	218	of the `struct user'.
1f29e30b	219
637942e4 JG	220	As a practical matter, we don't know where the registers actually are,
	221	so we have to pass the whole area to GDB. We encode the value of u_ar0
	222	by setting the .regs section up so that its virtual memory address
	223	0 is at the place pointed to by u_ar0 (by setting the vma of the start
	224	of the section to -u_ar0). GDB uses this info to locate the regs,
	225	using minor trickery to get around the offset-or-absolute-addr problem. */
	226	core_regsec (abfd)->vma = 0 - (int) u.u_ar0;
ff37ea55 JG	227
ff37ea55 JG	228	core_datasec (abfd)->filepos = NBPG * UPAGES;
baf200d4 JK	229	core_stacksec (abfd)->filepos = (NBPG * UPAGES) + NBPG * u.u_dsize
	230	#ifdef TRAD_CORE_DSIZE_INCLUDES_TSIZE
	231	- NBPG * u.u_tsize
4c3721d5	232	#endif
baf200d4	233	;
1f29e30b	234	core_regsec (abfd)->filepos = 0; /* Register segment is the upage */
ff37ea55 JG	235
	236	/* Align to word at least */
	237	core_stacksec (abfd)->alignment_power = 2;
	238	core_datasec (abfd)->alignment_power = 2;
	239	core_regsec (abfd)->alignment_power = 2;
	240
	241	abfd->sections = core_stacksec (abfd);
	242	core_stacksec (abfd)->next = core_datasec (abfd);
	243	core_datasec (abfd)->next = core_regsec (abfd);
	244	abfd->section_count = 3;
	245
	246	return abfd->xvec;
ff37ea55 JG	247	}
	248
	249	char *
	250	trad_unix_core_file_failing_command (abfd)
	251	bfd *abfd;
	252	{
1f29e30b JG	253	#ifndef NO_CORE_COMMAND
	254	char *com = abfd->tdata.trad_core_data->u.u_comm;
	255	if (*com)
	256	return com;
ff37ea55	257	else
1f29e30b	258	#endif
ff37ea55 JG	259	return 0;
	260	}
	261
7ed4093a	262	/* ARGSUSED */
ff37ea55	263	int
7ed4093a SC	264	trad_unix_core_file_failing_signal (ignore_abfd)
7ed4093a SC	265	bfd *ignore_abfd;
ff37ea55	266	{
31568a6f JK	267	#ifdef TRAD_UNIX_CORE_FILE_FAILING_SIGNAL
	268	return TRAD_UNIX_CORE_FILE_FAILING_SIGNAL(ignore_abfd);
	269	#else
ff37ea55	270	return -1; /* FIXME, where is it? */
31568a6f	271	#endif
ff37ea55 JG	272	}
ff37ea55 JG	273
7ed4093a	274	/* ARGSUSED */
ff37ea55 JG	275	boolean
	276	trad_unix_core_file_matches_executable_p (core_bfd, exec_bfd)
	277	bfd core_bfd, exec_bfd;
	278	{
	279	return true; /* FIXME, We have no way of telling at this point */
	280	}
6a469027 JG	281	\f
	282	/* No archive file support via this BFD */
	283	#define trad_unix_openr_next_archived_file bfd_generic_openr_next_archived_file
	284	#define trad_unix_generic_stat_arch_elt bfd_generic_stat_arch_elt
	285	#define trad_unix_slurp_armap bfd_false
	286	#define trad_unix_slurp_extended_name_table bfd_true
1f29e30b JG	287	#define trad_unix_write_armap (boolean (*) PARAMS \
	288	((bfd arch, unsigned int elength, struct orl map, \
	289	unsigned int orl_count, int stridx))) bfd_false
6a469027 JG	290	#define trad_unix_truncate_arname bfd_dont_truncate_arname
	291	#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
	292
	293	#define trad_unix_close_and_cleanup bfd_generic_close_and_cleanup
1f29e30b JG	294	#define trad_unix_set_section_contents (boolean (*) PARAMS \
1f29e30b JG	295	((bfd abfd, asection section, PTR data, file_ptr offset, \
baf200d4	296	bfd_size_type count))) bfd_generic_set_section_contents
6a469027	297	#define trad_unix_get_section_contents bfd_generic_get_section_contents
1f29e30b JG	298	#define trad_unix_new_section_hook (boolean (*) PARAMS \
1f29e30b JG	299	((bfd *, sec_ptr))) bfd_true
6a469027	300	#define trad_unix_get_symtab_upper_bound bfd_0u
1f29e30b JG	301	#define trad_unix_get_symtab (unsigned int (*) PARAMS \
	302	((bfd , struct symbol_cache_entry *))) bfd_0u
	303	#define trad_unix_get_reloc_upper_bound (unsigned int (*) PARAMS \
	304	((bfd *, sec_ptr))) bfd_0u
	305	#define trad_unix_canonicalize_reloc (unsigned int (*) PARAMS \
	306	((bfd , sec_ptr, arelent , struct symbol_cache_entry*))) bfd_0u
	307	#define trad_unix_make_empty_symbol (struct symbol_cache_entry * \
31568a6f	308	() PARAMS ((bfd ))) bfd_false
1f29e30b JG	309	#define trad_unix_print_symbol (void (*) PARAMS \
	310	((bfd , PTR, struct symbol_cache_entry , \
	311	bfd_print_symbol_type))) bfd_false
4d09e8ac JK	312	#define trad_unix_get_symbol_info (void (*) PARAMS \
	313	((bfd , struct symbol_cache_entry , \
	314	symbol_info *))) bfd_false
1f29e30b JG	315	#define trad_unix_get_lineno (alent * (*) PARAMS \
	316	((bfd , struct symbol_cache_entry ))) bfd_nullvoidptr
	317	#define trad_unix_set_arch_mach (boolean (*) PARAMS \
0dc1bc8b	318	((bfd *, enum bfd_architecture, unsigned long))) bfd_false
1f29e30b	319	#define trad_unix_find_nearest_line (boolean (*) PARAMS \
0dc1bc8b	320	((bfd abfd, struct sec section, \
6a469027 JG	321	struct symbol_cache_entry **symbols,bfd_vma offset, \
6a469027 JG	322	CONST char file, CONST char func, unsigned int *line))) bfd_false
1f29e30b	323	#define trad_unix_sizeof_headers (int (*) PARAMS \
0dc1bc8b	324	((bfd *, boolean))) bfd_0
6a469027 JG	325
	326	#define trad_unix_bfd_debug_info_start bfd_void
	327	#define trad_unix_bfd_debug_info_end bfd_void
1f29e30b	328	#define trad_unix_bfd_debug_info_accumulate (void (*) PARAMS \
0dc1bc8b	329	((bfd , struct sec ))) bfd_void
1f29e30b JG	330	#define trad_unix_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
1f29e30b JG	331	#define trad_unix_bfd_relax_section bfd_generic_relax_section
31568a6f JK	332	#define trad_unix_bfd_reloc_type_lookup \
	333	((CONST struct reloc_howto_struct () PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
	334	#define trad_unix_bfd_make_debug_symbol \
	335	((asymbol () PARAMS ((bfd , void , unsigned long))) bfd_nullvoidptr)
4c3721d5 ILT	336	#define trad_unix_bfd_link_hash_table_create \
	337	((struct bfd_link_hash_table () PARAMS ((bfd *))) bfd_nullvoidptr)
	338	#define trad_unix_bfd_link_add_symbols \
	339	((boolean () PARAMS ((bfd , struct bfd_link_info *))) bfd_false)
	340	#define trad_unix_bfd_final_link \
	341	((boolean () PARAMS ((bfd , struct bfd_link_info *))) bfd_false)
6f4aac6c KR	342	#define trad_unix_bfd_copy_private_section_data \
	343	((boolean () PARAMS ((bfd , asection , bfd , asection *))) bfd_false)
	344	#define trad_unix_bfd_copy_private_bfd_data \
	345	((boolean () PARAMS ((bfd , bfd *))) bfd_false)
	346	#define trad_unix_bfd_is_local_label \
	347	((boolean () PARAMS ((bfd , asection *))) bfd_false)
0dc1bc8b	348
637942e4 JG	349	/* If somebody calls any byte-swapping routines, shoot them. */
	350	void
	351	swap_abort()
	352	{
	353	abort(); /* This way doesn't require any declaration for ANSI to fuck up */
	354	}
baf200d4	355	#define NO_GET ((bfd_vma () PARAMS (( const bfd_byte ))) swap_abort )
1f29e30b	356	#define NO_PUT ((void () PARAMS ((bfd_vma, bfd_byte ))) swap_abort )
baf200d4 JK	357	#define NO_SIGNED_GET \
baf200d4 JK	358	((bfd_signed_vma () PARAMS ((const bfd_byte ))) swap_abort )
6a469027	359
637942e4	360	bfd_target trad_core_vec =
6a469027	361	{
637942e4	362	"trad-core",
6a469027 JG	363	bfd_target_unknown_flavour,
	364	true, /* target byte order */
	365	true, /* target headers byte order */
	366	(HAS_RELOC \| EXEC_P \| /* object flags */
	367	HAS_LINENO \| HAS_DEBUG \|
4c3721d5	368	HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),
6a469027	369	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
0dc1bc8b	370	0, /* symbol prefix */
6a469027 JG	371	' ', /* ar_pad_char */
	372	16, /* ar_max_namelen */
	373	3, /* minimum alignment power */
4d09e8ac JK	374	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
	375	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
	376	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
	377	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
	378	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
	379	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
31568a6f JK	380
	381	{ /* bfd_check_format */
	382	_bfd_dummy_target, /* unknown format */
	383	_bfd_dummy_target, /* object file */
	384	_bfd_dummy_target, /* archive */
	385	trad_unix_core_file_p /* a core file */
	386	},
	387	{ /* bfd_set_format */
	388	bfd_false, bfd_false,
	389	bfd_false, bfd_false
	390	},
	391	{ /* bfd_write_contents */
	392	bfd_false, bfd_false,
	393	bfd_false, bfd_false
	394	},
6a469027	395
31568a6f JK	396	JUMP_TABLE(trad_unix),
31568a6f JK	397	(PTR) 0 /* backend_data */
6a469027	398	};