OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [bfd/] [irix-core.c] - Blame information for rev 205

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 205 julius
/* BFD back-end for Irix core files.
2
   Copyright 1993, 1994, 1996, 1999, 2001, 2002, 2004, 2005, 2006, 2007
3
   Free Software Foundation, Inc.
4
   Written by Stu Grossman, Cygnus Support.
5
   Converted to back-end form by Ian Lance Taylor, Cygnus Support
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
 
25
/* This file can only be compiled on systems which use Irix style core
26
   files (namely, Irix 4 and Irix 5, so far).  */
27
 
28
#include "sysdep.h"
29
#include "bfd.h"
30
#include "libbfd.h"
31
 
32
#ifdef IRIX_CORE
33
 
34
#include <core.out.h>
35
 
36
struct sgi_core_struct
37
{
38
  int sig;
39
  char cmd[CORE_NAMESIZE];
40
};
41
 
42
#define core_hdr(bfd) ((bfd)->tdata.sgi_core_data)
43
#define core_signal(bfd) (core_hdr(bfd)->sig)
44
#define core_command(bfd) (core_hdr(bfd)->cmd)
45
 
46
#define irix_core_core_file_matches_executable_p generic_core_file_matches_executable_p
47
 
48
static asection *make_bfd_asection
49
  (bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr);
50
 
51
/* Helper function for irix_core_core_file_p:
52
   32-bit and 64-bit versions.  */
53
 
54
#ifdef CORE_MAGIC64
55
static int
56
do_sections64 (bfd *abfd, struct coreout *coreout)
57
{
58
  struct vmap64 vmap;
59
  char *secname;
60
  int i, val;
61
 
62
  for (i = 0; i < coreout->c_nvmap; i++)
63
    {
64
      val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
65
      if (val != sizeof vmap)
66
        break;
67
 
68
      switch (vmap.v_type)
69
        {
70
        case VDATA:
71
          secname = ".data";
72
          break;
73
        case VSTACK:
74
          secname = ".stack";
75
          break;
76
#ifdef VMAPFILE
77
        case VMAPFILE:
78
          secname = ".mapfile";
79
          break;
80
#endif
81
        default:
82
          continue;
83
        }
84
 
85
      /* A file offset of zero means that the
86
         section is not contained in the corefile.  */
87
      if (vmap.v_offset == 0)
88
        continue;
89
 
90
      if (!make_bfd_asection (abfd, secname,
91
                              SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
92
                              vmap.v_len, vmap.v_vaddr, vmap.v_offset))
93
        /* Fail.  */
94
        return 0;
95
    }
96
 
97
  return 1;
98
}
99
#endif
100
 
101
/* 32-bit version.  */
102
 
103
static int
104
do_sections (bfd *abfd, struct coreout *coreout)
105
{
106
  struct vmap vmap;
107
  char *secname;
108
  int i, val;
109
 
110
  for (i = 0; i < coreout->c_nvmap; i++)
111
    {
112
      val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
113
      if (val != sizeof vmap)
114
        break;
115
 
116
      switch (vmap.v_type)
117
        {
118
        case VDATA:
119
          secname = ".data";
120
          break;
121
        case VSTACK:
122
          secname = ".stack";
123
          break;
124
#ifdef VMAPFILE
125
        case VMAPFILE:
126
          secname = ".mapfile";
127
          break;
128
#endif
129
        default:
130
          continue;
131
        }
132
 
133
      /* A file offset of zero means that the
134
         section is not contained in the corefile.  */
135
      if (vmap.v_offset == 0)
136
        continue;
137
 
138
      if (!make_bfd_asection (abfd, secname,
139
                              SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
140
                              vmap.v_len, vmap.v_vaddr, vmap.v_offset))
141
        /* Fail.  */
142
        return 0;
143
    }
144
  return 1;
145
}
146
 
147
static asection *
148
make_bfd_asection (bfd *abfd,
149
                   const char *name,
150
                   flagword flags,
151
                   bfd_size_type size,
152
                   bfd_vma vma,
153
                   file_ptr filepos)
154
{
155
  asection *asect;
156
 
157
  asect = bfd_make_section_anyway_with_flags (abfd, name, flags);
158
  if (!asect)
159
    return NULL;
160
 
161
  asect->size = size;
162
  asect->vma = vma;
163
  asect->filepos = filepos;
164
  asect->alignment_power = 4;
165
 
166
  return asect;
167
}
168
 
169
static const bfd_target *
170
irix_core_core_file_p (bfd *abfd)
171
{
172
  int val;
173
  struct coreout coreout;
174
  struct idesc *idg, *idf, *ids;
175
  bfd_size_type amt;
176
 
177
  val = bfd_bread ((PTR) &coreout, (bfd_size_type) sizeof coreout, abfd);
178
  if (val != sizeof coreout)
179
    {
180
      if (bfd_get_error () != bfd_error_system_call)
181
        bfd_set_error (bfd_error_wrong_format);
182
      return 0;
183
    }
184
 
185
  if (coreout.c_version != CORE_VERSION1)
186
    return 0;
187
 
188
  /* Have we got a corefile?  */
189
  switch (coreout.c_magic)
190
    {
191
    case CORE_MAGIC:    break;
192
#ifdef CORE_MAGIC64
193
    case CORE_MAGIC64:  break;
194
#endif
195
#ifdef CORE_MAGICN32
196
    case CORE_MAGICN32: break;
197
#endif
198
    default:            return 0;        /* Un-identifiable or not corefile.  */
199
    }
200
 
201
  amt = sizeof (struct sgi_core_struct);
202
  core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt);
203
  if (!core_hdr (abfd))
204
    return NULL;
205
 
206
  strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
207
  core_signal (abfd) = coreout.c_sigcause;
208
 
209
  if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
210
    goto fail;
211
 
212
  /* Process corefile sections.  */
213
#ifdef CORE_MAGIC64
214
  if (coreout.c_magic == (int) CORE_MAGIC64)
215
    {
216
      if (! do_sections64 (abfd, & coreout))
217
        goto fail;
218
    }
219
  else
220
#endif
221
    if (! do_sections (abfd, & coreout))
222
      goto fail;
223
 
224
  /* Make sure that the regs are contiguous within the core file.  */
225
 
226
  idg = &coreout.c_idesc[I_GPREGS];
227
  idf = &coreout.c_idesc[I_FPREGS];
228
  ids = &coreout.c_idesc[I_SPECREGS];
229
 
230
  if (idg->i_offset + idg->i_len != idf->i_offset
231
      || idf->i_offset + idf->i_len != ids->i_offset)
232
    goto fail;                  /* Can't deal with non-contig regs */
233
 
234
  if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
235
    goto fail;
236
 
237
  if (!make_bfd_asection (abfd, ".reg",
238
                          SEC_HAS_CONTENTS,
239
                          idg->i_len + idf->i_len + ids->i_len,
240
                          0,
241
                          idg->i_offset))
242
    goto fail;
243
 
244
  /* OK, we believe you.  You're a core file (sure, sure).  */
245
  bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
246
 
247
  return abfd->xvec;
248
 
249
 fail:
250
  bfd_release (abfd, core_hdr (abfd));
251
  core_hdr (abfd) = NULL;
252
  bfd_section_list_clear (abfd);
253
  return NULL;
254
}
255
 
256
static char *
257
irix_core_core_file_failing_command (bfd *abfd)
258
{
259
  return core_command (abfd);
260
}
261
 
262
static int
263
irix_core_core_file_failing_signal (bfd *abfd)
264
{
265
  return core_signal (abfd);
266
}
267
 
268
/* If somebody calls any byte-swapping routines, shoot them.  */
269
static void
270
swap_abort(void)
271
{
272
  abort(); /* This way doesn't require any declaration for ANSI to fuck up */
273
}
274
 
275
#define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
276
#define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
277
#define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
278
#define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
279
#define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
280
#define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
281
 
282
const bfd_target irix_core_vec =
283
  {
284
    "irix-core",
285
    bfd_target_unknown_flavour,
286
    BFD_ENDIAN_BIG,             /* target byte order */
287
    BFD_ENDIAN_BIG,             /* target headers byte order */
288
    (HAS_RELOC | EXEC_P |       /* object flags */
289
     HAS_LINENO | HAS_DEBUG |
290
     HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
291
    (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
292
    0,                                                      /* symbol prefix */
293
    ' ',                                                   /* ar_pad_char */
294
    16,                                                    /* ar_max_namelen */
295
    NO_GET64, NO_GETS64, NO_PUT64,      /* 64 bit data */
296
    NO_GET, NO_GETS, NO_PUT,            /* 32 bit data */
297
    NO_GET, NO_GETS, NO_PUT,            /* 16 bit data */
298
    NO_GET64, NO_GETS64, NO_PUT64,      /* 64 bit hdrs */
299
    NO_GET, NO_GETS, NO_PUT,            /* 32 bit hdrs */
300
    NO_GET, NO_GETS, NO_PUT,            /* 16 bit hdrs */
301
 
302
    {                           /* bfd_check_format */
303
      _bfd_dummy_target,                /* unknown format */
304
      _bfd_dummy_target,                /* object file */
305
      _bfd_dummy_target,                /* archive */
306
      irix_core_core_file_p             /* a core file */
307
    },
308
    {                           /* bfd_set_format */
309
      bfd_false, bfd_false,
310
      bfd_false, bfd_false
311
    },
312
    {                           /* bfd_write_contents */
313
      bfd_false, bfd_false,
314
      bfd_false, bfd_false
315
    },
316
 
317
    BFD_JUMP_TABLE_GENERIC (_bfd_generic),
318
    BFD_JUMP_TABLE_COPY (_bfd_generic),
319
    BFD_JUMP_TABLE_CORE (irix_core),
320
    BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
321
    BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
322
    BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
323
    BFD_JUMP_TABLE_WRITE (_bfd_generic),
324
    BFD_JUMP_TABLE_LINK (_bfd_nolink),
325
    BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
326
 
327
    NULL,
328
 
329
    (PTR) 0                      /* backend_data */
330
  };
331
 
332
#endif /* IRIX_CORE */

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.