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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [bfd/] [netbsd-core.c] - Blame information for rev 280

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Line No. Rev Author Line
1 227 jeremybenn
/* BFD back end for NetBSD style core files
2
   Copyright 1988, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000, 2001,
3
   2002, 2003, 2004, 2005, 2006, 2007
4
   Free Software Foundation, Inc.
5
   Written by Paul Kranenburg, EUR
6
 
7
   This file is part of BFD, the Binary File Descriptor library.
8
 
9
   This program is free software; you can redistribute it and/or modify
10
   it under the terms of the GNU General Public License as published by
11
   the Free Software Foundation; either version 3 of the License, or
12
   (at your option) any later version.
13
 
14
   This program is distributed in the hope that it will be useful,
15
   but WITHOUT ANY WARRANTY; without even the implied warranty of
16
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
   GNU General Public License for more details.
18
 
19
   You should have received a copy of the GNU General Public License
20
   along with this program; if not, write to the Free Software
21
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22
   MA 02110-1301, USA.  */
23
 
24
#include "sysdep.h"
25
#include "bfd.h"
26
#include "libbfd.h"
27
#include "libaout.h"           /* BFD a.out internal data structures.  */
28
 
29
#include <sys/param.h>
30
#include <sys/dir.h>
31
#include <signal.h>
32
#include <sys/core.h>
33
 
34
/* The machine ID for OpenBSD/sparc64 and older versions of
35
   NetBSD/sparc64 overlaps with M_MIPS1.  */
36
#define M_SPARC64_OPENBSD       M_MIPS1
37
 
38
/* Offset of StackGhost cookie within `struct md_coredump' on
39
   OpenBSD/sparc.  */
40
#define SPARC_WCOOKIE_OFFSET    344
41
 
42
/* Offset of StackGhost cookie within `struct md_coredump' on
43
   OpenBSD/sparc64.  */
44
#define SPARC64_WCOOKIE_OFFSET  832
45
 
46
#define netbsd_core_file_matches_executable_p generic_core_file_matches_executable_p
47
 
48
struct netbsd_core_struct
49
{
50
  struct core core;
51
} *rawptr;
52
 
53
/* Handle NetBSD-style core dump file.  */
54
 
55
static const bfd_target *
56
netbsd_core_file_p (bfd *abfd)
57
{
58
  int val;
59
  unsigned i;
60
  file_ptr offset;
61
  asection *asect;
62
  struct core core;
63
  struct coreseg coreseg;
64
  bfd_size_type amt = sizeof core;
65
 
66
  val = bfd_bread (&core, amt, abfd);
67
  if (val != sizeof core)
68
    {
69
      /* Too small to be a core file.  */
70
      bfd_set_error (bfd_error_wrong_format);
71
      return 0;
72
    }
73
 
74
  if (CORE_GETMAGIC (core) != COREMAGIC)
75
    {
76
      bfd_set_error (bfd_error_wrong_format);
77
      return 0;
78
    }
79
 
80
  amt = sizeof (struct netbsd_core_struct);
81
  rawptr = (struct netbsd_core_struct *) bfd_zalloc (abfd, amt);
82
  if (rawptr == NULL)
83
    return 0;
84
 
85
  rawptr->core = core;
86
  abfd->tdata.netbsd_core_data = rawptr;
87
 
88
  offset = core.c_hdrsize;
89
  for (i = 0; i < core.c_nseg; i++)
90
    {
91
      const char *sname;
92
      flagword flags;
93
 
94
      if (bfd_seek (abfd, offset, SEEK_SET) != 0)
95
        goto punt;
96
 
97
      val = bfd_bread (&coreseg, sizeof coreseg, abfd);
98
      if (val != sizeof coreseg)
99
        {
100
          bfd_set_error (bfd_error_file_truncated);
101
          goto punt;
102
        }
103
      if (CORE_GETMAGIC (coreseg) != CORESEGMAGIC)
104
        {
105
          bfd_set_error (bfd_error_wrong_format);
106
          goto punt;
107
        }
108
 
109
      offset += core.c_seghdrsize;
110
 
111
      switch (CORE_GETFLAG (coreseg))
112
        {
113
        case CORE_CPU:
114
          sname = ".reg";
115
          flags = SEC_ALLOC + SEC_HAS_CONTENTS;
116
          break;
117
        case CORE_DATA:
118
          sname = ".data";
119
          flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
120
          break;
121
        case CORE_STACK:
122
          sname = ".stack";
123
          flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
124
          break;
125
        default:
126
          sname = ".unknown";
127
          flags = SEC_ALLOC + SEC_HAS_CONTENTS;
128
          break;
129
        }
130
      asect = bfd_make_section_anyway_with_flags (abfd, sname, flags);
131
      if (asect == NULL)
132
        goto punt;
133
 
134
      asect->size = coreseg.c_size;
135
      asect->vma = coreseg.c_addr;
136
      asect->filepos = offset;
137
      asect->alignment_power = 2;
138
 
139
      if (CORE_GETFLAG (coreseg) == CORE_CPU)
140
        {
141
          bfd_size_type wcookie_offset;
142
 
143
          switch (CORE_GETMID (core))
144
            {
145
            case M_SPARC_NETBSD:
146
              wcookie_offset = SPARC_WCOOKIE_OFFSET;
147
              break;
148
            case M_SPARC64_OPENBSD:
149
              wcookie_offset = SPARC64_WCOOKIE_OFFSET;
150
              break;
151
            default:
152
              wcookie_offset = 0;
153
              break;
154
            }
155
 
156
          if (wcookie_offset > 0 && coreseg.c_size > wcookie_offset)
157
            {
158
              /* Truncate the .reg section.  */
159
              asect->size = wcookie_offset;
160
 
161
              /* And create the .wcookie section.  */
162
              flags = SEC_ALLOC + SEC_HAS_CONTENTS;
163
              asect = bfd_make_section_anyway_with_flags (abfd, ".wcookie",
164
                                                          flags);
165
              if (asect == NULL)
166
                goto punt;
167
 
168
              asect->size = coreseg.c_size - wcookie_offset;
169
              asect->vma = 0;
170
              asect->filepos = offset + wcookie_offset;
171
              asect->alignment_power = 2;
172
            }
173
        }
174
 
175
      offset += coreseg.c_size;
176
    }
177
 
178
  /* Set architecture from machine ID.  */
179
  switch (CORE_GETMID (core))
180
    {
181
    case M_ALPHA_NETBSD:
182
      bfd_default_set_arch_mach (abfd, bfd_arch_alpha, 0);
183
      break;
184
 
185
    case M_ARM6_NETBSD:
186
      bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_3);
187
      break;
188
 
189
    case M_X86_64_NETBSD:
190
      bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x86_64);
191
      break;
192
 
193
    case M_386_NETBSD:
194
      bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_i386_i386);
195
      break;
196
 
197
    case M_68K_NETBSD:
198
    case M_68K4K_NETBSD:
199
      bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
200
      break;
201
 
202
    case M_88K_OPENBSD:
203
      bfd_default_set_arch_mach (abfd, bfd_arch_m88k, 0);
204
      break;
205
 
206
    case M_HPPA_OPENBSD:
207
      bfd_default_set_arch_mach (abfd, bfd_arch_hppa, bfd_mach_hppa11);
208
      break;
209
 
210
    case M_POWERPC_NETBSD:
211
      bfd_default_set_arch_mach (abfd, bfd_arch_powerpc, bfd_mach_ppc);
212
      break;
213
 
214
    case M_SPARC_NETBSD:
215
      bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
216
      break;
217
 
218
    case M_SPARC64_NETBSD:
219
    case M_SPARC64_OPENBSD:
220
      bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc_v9);
221
      break;
222
 
223
    case M_VAX_NETBSD:
224
    case M_VAX4K_NETBSD:
225
      bfd_default_set_arch_mach (abfd, bfd_arch_vax, 0);
226
      break;
227
    }
228
 
229
  /* OK, we believe you.  You're a core file (sure, sure).  */
230
  return abfd->xvec;
231
 
232
 punt:
233
  bfd_release (abfd, abfd->tdata.any);
234
  abfd->tdata.any = NULL;
235
  bfd_section_list_clear (abfd);
236
  return 0;
237
}
238
 
239
static char*
240
netbsd_core_file_failing_command (bfd *abfd)
241
{
242
  /*return core_command (abfd);*/
243
  return abfd->tdata.netbsd_core_data->core.c_name;
244
}
245
 
246
static int
247
netbsd_core_file_failing_signal (bfd *abfd)
248
{
249
  /*return core_signal (abfd);*/
250
  return abfd->tdata.netbsd_core_data->core.c_signo;
251
}
252
 
253
/* If somebody calls any byte-swapping routines, shoot them.  */
254
 
255
static void
256
swap_abort (void)
257
{
258
 /* This way doesn't require any declaration for ANSI to fuck up.  */
259
  abort ();
260
}
261
 
262
#define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
263
#define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
264
#define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
265
#define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
266
#define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
267
#define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
268
 
269
const bfd_target netbsd_core_vec =
270
  {
271
    "netbsd-core",
272
    bfd_target_unknown_flavour,
273
    BFD_ENDIAN_UNKNOWN,         /* Target byte order.  */
274
    BFD_ENDIAN_UNKNOWN,         /* Target headers byte order.  */
275
    (HAS_RELOC | EXEC_P |       /* Object flags.  */
276
     HAS_LINENO | HAS_DEBUG |
277
     HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
278
    (SEC_HAS_CONTENTS |         /* Section flags.  */
279
     SEC_ALLOC | SEC_LOAD | SEC_RELOC),
280
    0,                           /* Symbol prefix.  */
281
    ' ',                        /* ar_pad_char.  */
282
    16,                         /* ar_max_namelen.  */
283
    NO_GET64, NO_GETS64, NO_PUT64,      /* 64 bit data.  */
284
    NO_GET, NO_GETS, NO_PUT,            /* 32 bit data.  */
285
    NO_GET, NO_GETS, NO_PUT,            /* 16 bit data.  */
286
    NO_GET64, NO_GETS64, NO_PUT64,      /* 64 bit hdrs.  */
287
    NO_GET, NO_GETS, NO_PUT,            /* 32 bit hdrs.  */
288
    NO_GET, NO_GETS, NO_PUT,            /* 16 bit hdrs.  */
289
 
290
    {                                   /* bfd_check_format.  */
291
      _bfd_dummy_target,                /* Unknown format.  */
292
      _bfd_dummy_target,                /* Object file.  */
293
      _bfd_dummy_target,                /* Archive.  */
294
      netbsd_core_file_p                /* A core file.  */
295
    },
296
    {                                   /* bfd_set_format.  */
297
      bfd_false, bfd_false,
298
      bfd_false, bfd_false
299
    },
300
    {                                   /* bfd_write_contents.  */
301
      bfd_false, bfd_false,
302
      bfd_false, bfd_false
303
    },
304
 
305
    BFD_JUMP_TABLE_GENERIC (_bfd_generic),
306
    BFD_JUMP_TABLE_COPY (_bfd_generic),
307
    BFD_JUMP_TABLE_CORE (netbsd),
308
    BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
309
    BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
310
    BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
311
    BFD_JUMP_TABLE_WRITE (_bfd_generic),
312
    BFD_JUMP_TABLE_LINK (_bfd_nolink),
313
    BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
314
 
315
    NULL,
316
 
317
    (PTR) 0                              /* Backend_data.  */
318
  };

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