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

/* BFD back end for NetBSD style core files
   Copyright 1988, 89, 91, 92, 93, 96, 1998 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, offset;
	asection	*asect, *asect2;
	struct core	core;
	struct coreseg	coreseg;

	val = bfd_read ((void *)&core, 1, sizeof core, 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;
	}

	rawptr = (struct netbsd_core_struct *)
		bfd_zalloc (abfd, sizeof (struct netbsd_core_struct));
	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_read ((void *)&coreseg, 1, 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;

		asect = (asection *) bfd_zalloc (abfd, sizeof(asection));
		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;
			asect2 = (asection *)bfd_zalloc (abfd,
							 sizeof (asection));
			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, *exec_bfd;
{
  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),

    (PTR) 0			/* backend_data */
};
Commit	Line	Data
252b5132 RH	1	/* BFD back end for NetBSD style core files
	2	Copyright 1988, 89, 91, 92, 93, 96, 1998 Free Software Foundation, Inc.
	3	Written by Paul Kranenburg, EUR
	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	#include "bfd.h"
	22	#include "sysdep.h"
	23	#include "libbfd.h"
	24	#include "libaout.h" /* BFD a.out internal data structures */
	25
	26	#include <sys/param.h>
	27	#include <sys/dir.h>
	28	#include <signal.h>
	29	#include <sys/core.h>
	30
	31	/*
	32	* FIXME: On NetBSD/sparc CORE_FPU_OFFSET should be (sizeof(struct trapframe))
	33	*/
	34
	35	struct netbsd_core_struct {
	36	struct core core;
	37	} *rawptr;
	38
	39	/* forward declarations */
	40
	41	static const bfd_target * netbsd_core_file_p PARAMS ((bfd *abfd));
	42	static char * netbsd_core_file_failing_command PARAMS ((bfd *abfd));
	43	static int netbsd_core_file_failing_signal PARAMS ((bfd *abfd));
	44	static boolean netbsd_core_file_matches_executable_p
	45	PARAMS ((bfd core_bfd, bfd exec_bfd));
	46	static void swap_abort PARAMS ((void));
	47
	48	/* Handle NetBSD-style core dump file. */
	49
	50	/* ARGSUSED */
	51	static const bfd_target *
	52	netbsd_core_file_p (abfd)
	53	bfd *abfd;
	54
	55	{
	56	int i, val, offset;
	57	asection asect, asect2;
	58	struct core core;
	59	struct coreseg coreseg;
	60
	61	val = bfd_read ((void *)&core, 1, sizeof core, abfd);
	62	if (val != sizeof core) {
	63	/* Too small to be a core file */
	64	bfd_set_error(bfd_error_wrong_format);
65	return 0;
66	}
67
68	if (CORE_GETMAGIC(core) != COREMAGIC) {
69	bfd_set_error(bfd_error_wrong_format);
70	return 0;
71	}
72
73	rawptr = (struct netbsd_core_struct *)
74	bfd_zalloc (abfd, sizeof (struct netbsd_core_struct));
75	if (rawptr == NULL) {
76	bfd_set_error(bfd_error_no_memory);
77	return 0;
78	}
79
80	rawptr->core = core;
81	abfd->tdata.netbsd_core_data = rawptr;
82
83	offset = core.c_hdrsize;
84	for (i = 0; i < core.c_nseg; i++) {
85
86	if (bfd_seek (abfd, offset, SEEK_SET) != 0)
87	goto punt;
88
89	val = bfd_read ((void *)&coreseg, 1, sizeof coreseg, abfd);
90	if (val != sizeof coreseg) {
91	bfd_set_error(bfd_error_file_truncated);
92	goto punt;
93	}
94	if (CORE_GETMAGIC(coreseg) != CORESEGMAGIC) {
95	bfd_set_error(bfd_error_wrong_format);
96	goto punt;
97	}
98
99	offset += core.c_seghdrsize;
100
101	asect = (asection *) bfd_zalloc (abfd, sizeof(asection));
102	if (asect == NULL) {
103	bfd_set_error(bfd_error_no_memory);
104	goto punt;
105	}
106
107	asect->_raw_size = coreseg.c_size;
108	asect->vma = coreseg.c_addr;
109	asect->filepos = offset;
110	asect->alignment_power = 2;
111	asect->next = abfd->sections;
112	abfd->sections = asect;
113	abfd->section_count++;
114	offset += coreseg.c_size;
115
116	switch (CORE_GETFLAG(coreseg)) {
117	case CORE_CPU:
118	asect->name = ".reg";
119	asect->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
120	#ifdef CORE_FPU_OFFSET
121	/* Hackish... */
122	asect->_raw_size = CORE_FPU_OFFSET;
123	asect2 = (asection *)bfd_zalloc (abfd,
124	sizeof (asection));
125	if (asect2 == NULL) {
126	bfd_set_error(bfd_error_no_memory);
127	goto punt;
128	}
129	asect2->_raw_size = coreseg.c_size - CORE_FPU_OFFSET;
130	asect2->vma = 0;
131	asect2->filepos = asect->filepos + CORE_FPU_OFFSET;
132	asect2->alignment_power = 2;
133	asect2->next = abfd->sections;
134	asect2->name = ".reg2";
135	asect2->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
136	abfd->sections = asect2;
137	abfd->section_count++;
138	#endif
139
140	break;
141	case CORE_DATA:
142	asect->name = ".data";
143	asect->flags = SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS;
144	break;
145	case CORE_STACK:
146	asect->name = ".stack";
147	asect->flags = SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS;
148	break;
149	}
150	}
151
152	/* OK, we believe you. You're a core file (sure, sure). */
153	return abfd->xvec;
154
155	punt: {
156	asection *anext;
157	for (asect = abfd->sections; asect; asect = anext) {
158	anext = asect->next;
159	free((void *)asect);
160	}
161	}
162	free ((void *)rawptr);
163	abfd->tdata.netbsd_core_data = NULL;
164	abfd->sections = NULL;
165	abfd->section_count = 0;
166	return 0;
167	}
168
169	static char*
170	netbsd_core_file_failing_command (abfd)
171	bfd *abfd;
172	{
173	/return core_command (abfd);/
174	return abfd->tdata.netbsd_core_data->core.c_name;
175	}
176
177	/* ARGSUSED */
178	static int
179	netbsd_core_file_failing_signal (abfd)
180	bfd *abfd;
181	{
182	/return core_signal (abfd);/
183	return abfd->tdata.netbsd_core_data->core.c_signo;
184	}
185
186	/* ARGSUSED */
187	static boolean
188	netbsd_core_file_matches_executable_p (core_bfd, exec_bfd)
189	bfd core_bfd, exec_bfd;
190	{
191	return true; /* FIXME, We have no way of telling at this point */
192	}
193	\f
194	/* If somebody calls any byte-swapping routines, shoot them. */
195	static void
196	swap_abort()
197	{
198	abort(); /* This way doesn't require any declaration for ANSI to fuck up */
199	}
200	#define NO_GET ((bfd_vma () PARAMS (( const bfd_byte ))) swap_abort )
201	#define NO_PUT ((void () PARAMS ((bfd_vma, bfd_byte ))) swap_abort )
202	#define NO_SIGNED_GET \
203	((bfd_signed_vma () PARAMS ((const bfd_byte ))) swap_abort )
204
205	const bfd_target netbsd_core_vec =
206	{
207	"netbsd-core",
208	bfd_target_unknown_flavour,
209	BFD_ENDIAN_UNKNOWN, /* target byte order */
210	BFD_ENDIAN_UNKNOWN, /* target headers byte order */
211	(HAS_RELOC \| EXEC_P \| /* object flags */
212	HAS_LINENO \| HAS_DEBUG \|
213	HAS_SYMS \| HAS_LOCALS \| WP_TEXT \| D_PAGED),
214	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
215	0, /* symbol prefix */
216	' ', /* ar_pad_char */
217	16, /* ar_max_namelen */
218	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
219	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
220	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
221	NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
222	NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
223	NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
224
225	{ /* bfd_check_format */
226	_bfd_dummy_target, /* unknown format */
227	_bfd_dummy_target, /* object file */
228	_bfd_dummy_target, /* archive */
229	netbsd_core_file_p /* a core file */
230	},
231	{ /* bfd_set_format */
232	bfd_false, bfd_false,
233	bfd_false, bfd_false
234	},
235	{ /* bfd_write_contents */
236	bfd_false, bfd_false,
237	bfd_false, bfd_false
238	},
239
240	BFD_JUMP_TABLE_GENERIC (_bfd_generic),
241	BFD_JUMP_TABLE_COPY (_bfd_generic),
242	BFD_JUMP_TABLE_CORE (netbsd),
243	BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
244	BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
245	BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
246	BFD_JUMP_TABLE_WRITE (_bfd_generic),
247	BFD_JUMP_TABLE_LINK (_bfd_nolink),
248	BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
249
250	(PTR) 0 /* backend_data */
251	};