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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [bfd/] [vms.c] - Blame information for rev 178

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Line No. Rev Author Line
1 24 jeremybenn
/* vms.c -- BFD back-end for VAX (openVMS/VAX) and
2
   EVAX (openVMS/Alpha) files.
3
   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4
   2006, 2007, 2008 Free Software Foundation, Inc.
5
 
6
   Written by Klaus K"ampf (kkaempf@rmi.de)
7
 
8
   This program is free software; you can redistribute it and/or modify
9
   it under the terms of the GNU General Public License as published by
10
   the Free Software Foundation; either version 3 of the License, or
11
   (at your option) any later version.
12
 
13
   This program is distributed in the hope that it will be useful,
14
   but WITHOUT ANY WARRANTY; without even the implied warranty of
15
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
   GNU General Public License for more details.
17
 
18
   You should have received a copy of the GNU General Public License
19
   along with this program; if not, write to the Free Software
20
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21
   MA 02110-1301, USA.  */
22
 
23
#include "sysdep.h"
24
#include "bfd.h"
25
#include "bfdlink.h"
26
#include "libbfd.h"
27
 
28
#include "vms.h"
29
 
30
#define vms_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
31
#define vms_make_empty_symbol             _bfd_generic_make_empty_symbol
32
#define vms_bfd_link_just_syms            _bfd_generic_link_just_syms
33
#define vms_bfd_is_group_section          bfd_generic_is_group_section
34
#define vms_bfd_discard_group             bfd_generic_discard_group
35
#define vms_section_already_linked        _bfd_generic_section_already_linked
36
#define vms_bfd_copy_private_header_data  _bfd_generic_bfd_copy_private_header_data
37
#define vms_get_synthetic_symtab          _bfd_nodynamic_get_synthetic_symtab
38
 
39
static unsigned int priv_section_count;
40
extern const bfd_target vms_vax_vec;
41
extern const bfd_target vms_alpha_vec;
42
 
43
/* Initialize private data.  */
44
 
45
static bfd_boolean
46
vms_initialize (bfd * abfd)
47
{
48
  int i;
49
  bfd_size_type amt;
50
 
51
  bfd_set_start_address (abfd, (bfd_vma) -1);
52
 
53
  amt = sizeof (struct vms_private_data_struct);
54
  abfd->tdata.any = bfd_alloc (abfd, amt);
55
  if (abfd->tdata.any == NULL)
56
    return FALSE;
57
 
58
#ifdef __ALPHA
59
  PRIV (is_vax) = FALSE;
60
#else
61
  PRIV (is_vax) = TRUE;
62
#endif
63
  PRIV (vms_buf) = NULL;
64
  PRIV (buf_size) = 0;
65
  PRIV (rec_length) = 0;
66
  PRIV (file_format) = FF_UNKNOWN;
67
  PRIV (fixup_done) = FALSE;
68
  PRIV (sections) = NULL;
69
 
70
  amt = sizeof (struct stack_struct) * STACKSIZE;
71
  PRIV (stack) = bfd_alloc (abfd, amt);
72
  if (PRIV (stack) == NULL)
73
    goto error_ret1;
74
  PRIV (stackptr) = 0;
75
 
76
  amt = sizeof (struct bfd_hash_table);
77
  PRIV (vms_symbol_table) = bfd_alloc (abfd, amt);
78
  if (PRIV (vms_symbol_table) == NULL)
79
    goto error_ret1;
80
 
81
  if (!bfd_hash_table_init (PRIV (vms_symbol_table), _bfd_vms_hash_newfunc,
82
                            sizeof (vms_symbol_entry)))
83
    goto error_ret1;
84
 
85
  amt = sizeof (struct location_struct) * LOCATION_SAVE_SIZE;
86
  PRIV (location_stack) = bfd_alloc (abfd, amt);
87
  if (PRIV (location_stack) == NULL)
88
    goto error_ret2;
89
 
90
  for (i = 0; i < VMS_SECTION_COUNT; i++)
91
    PRIV (vms_section_table)[i] = NULL;
92
 
93
  amt = MAX_OUTREC_SIZE;
94
  PRIV (output_buf) = bfd_alloc (abfd, amt);
95
  if (PRIV (output_buf) == NULL)
96
    goto error_ret2;
97
 
98
  PRIV (push_level) = 0;
99
  PRIV (pushed_size) = 0;
100
  PRIV (length_pos) = 2;
101
  PRIV (output_size) = 0;
102
  PRIV (output_alignment) = 1;
103
 
104
  return TRUE;
105
 
106
 error_ret2:
107
  bfd_hash_table_free (PRIV (vms_symbol_table));
108
 error_ret1:
109
  bfd_release (abfd, abfd->tdata.any);
110
  abfd->tdata.any = NULL;
111
  return FALSE;
112
}
113
 
114
/* Fill symbol->section with section ptr
115
   symbol->section is filled with the section index for defined symbols
116
   during reading the GSD/EGSD section. But we need the pointer to the
117
   bfd section later.
118
 
119
   It has the correct value for referenced (undefined section) symbols
120
 
121
   called from bfd_hash_traverse in vms_fixup_sections.  */
122
 
123
static bfd_boolean
124
fill_section_ptr (struct bfd_hash_entry * entry, void * sections)
125
{
126
  asection *sec;
127
  asymbol *sym;
128
 
129
  sym = ((vms_symbol_entry *) entry)->symbol;
130
  sec = sym->section;
131
 
132
#if VMS_DEBUG
133
  vms_debug (6, "fill_section_ptr: sym %p, sec %p\n", sym, sec);
134
#endif
135
 
136
  /* Fill forward references (these contain section number, not section ptr).  */
137
  if ((unsigned int) (size_t) sec < priv_section_count)
138
    sec = ((vms_symbol_entry *) entry)->symbol->section =
139
      ((asection **) sections)[(unsigned int) (size_t) sec];
140
 
141
  if (strcmp (sym->name, sec->name) == 0)
142
    sym->flags |= BSF_SECTION_SYM;
143
 
144
  return TRUE;
145
}
146
 
147
/* Fixup sections
148
   set up all pointers and arrays, counters and sizes are fixed now
149
 
150
   we build a private sections vector for easy access since sections
151
   are always referenced by an index number.
152
 
153
   alloc PRIV(sections) according to abfd->section_count
154
        copy abfd->sections to PRIV(sections).  */
155
 
156
static bfd_boolean
157
vms_fixup_sections (bfd * abfd)
158
{
159
  if (PRIV (fixup_done))
160
    return TRUE;
161
 
162
  /* Traverse symbol table and fill in all section pointers.  */
163
 
164
  /* Can't provide section count as argument to fill_section_ptr().  */
165
  priv_section_count = PRIV (section_count);
166
  bfd_hash_traverse (PRIV (vms_symbol_table), fill_section_ptr, (PRIV (sections)));
167
 
168
  PRIV (fixup_done) = TRUE;
169
 
170
  return TRUE;
171
}
172
 
173
/* Check the format for a file being read.
174
   Return a (bfd_target *) if it's an object file or zero if not.  */
175
 
176
static const struct bfd_target *
177
vms_object_p (bfd * abfd)
178
{
179
  int err = 0;
180
  int prev_type;
181
  const struct bfd_target *target_vector = NULL;
182
  const bfd_arch_info_type *arch = NULL;
183
  void * tdata_save = abfd->tdata.any;
184
  bfd_vma saddr_save = bfd_get_start_address (abfd);
185
 
186
#if VMS_DEBUG
187
  vms_debug (1, "vms_object_p (%p)\n", abfd);
188
#endif
189
 
190
  if (!vms_initialize (abfd))
191
    goto error_ret;
192
 
193
  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET))
194
    goto err_wrong_format;
195
 
196
  prev_type = -1;
197
 
198
  do
199
    {
200
#if VMS_DEBUG
201
      vms_debug (7, "reading at %08lx\n", bfd_tell (abfd));
202
#endif
203
      if (_bfd_vms_next_record (abfd) < 0)
204
        {
205
#if VMS_DEBUG
206
          vms_debug (2, "next_record failed\n");
207
#endif
208
          goto err_wrong_format;
209
        }
210
 
211
      if ((prev_type == EOBJ_S_C_EGSD)
212
           && (PRIV (rec_type) != EOBJ_S_C_EGSD))
213
        {
214
          if (! vms_fixup_sections (abfd))
215
            {
216
#if VMS_DEBUG
217
              vms_debug (2, "vms_fixup_sections failed\n");
218
#endif
219
              goto err_wrong_format;
220
            }
221
        }
222
 
223
      prev_type = PRIV (rec_type);
224
 
225
      if (target_vector == NULL)
226
        {
227
          if (prev_type <= OBJ_S_C_MAXRECTYP)
228
            target_vector = & vms_vax_vec;
229
          else
230
            target_vector = & vms_alpha_vec;
231
        }
232
 
233
      switch (prev_type)
234
        {
235
          case OBJ_S_C_HDR:
236
          case EOBJ_S_C_EMH:
237
            err = _bfd_vms_slurp_hdr (abfd, prev_type);
238
            break;
239
          case OBJ_S_C_EOM:
240
          case OBJ_S_C_EOMW:
241
          case EOBJ_S_C_EEOM:
242
            err = _bfd_vms_slurp_eom (abfd, prev_type);
243
            break;
244
          case OBJ_S_C_GSD:
245
          case EOBJ_S_C_EGSD:
246
            err = _bfd_vms_slurp_gsd (abfd, prev_type);
247
            break;
248
          case OBJ_S_C_TIR:
249
          case EOBJ_S_C_ETIR:
250
            err = _bfd_vms_slurp_tir (abfd, prev_type);
251
            break;
252
          case OBJ_S_C_DBG:
253
          case EOBJ_S_C_EDBG:
254
            err = _bfd_vms_slurp_dbg (abfd, prev_type);
255
            break;
256
          case OBJ_S_C_TBT:
257
          case EOBJ_S_C_ETBT:
258
            err = _bfd_vms_slurp_tbt (abfd, prev_type);
259
            break;
260
          case OBJ_S_C_LNK:
261
            err = _bfd_vms_slurp_lnk (abfd, prev_type);
262
            break;
263
          default:
264
            err = -1;
265
        }
266
      if (err != 0)
267
        {
268
#if VMS_DEBUG
269
          vms_debug (2, "slurp type %d failed with %d\n", prev_type, err);
270
#endif
271
          goto err_wrong_format;
272
        }
273
    }
274
  while ((prev_type != EOBJ_S_C_EEOM) && (prev_type != OBJ_S_C_EOM) && (prev_type != OBJ_S_C_EOMW));
275
 
276
  if (target_vector == & vms_vax_vec)
277
    {
278
      if (! vms_fixup_sections (abfd))
279
        {
280
#if VMS_DEBUG
281
          vms_debug (2, "vms_fixup_sections failed\n");
282
#endif
283
          goto err_wrong_format;
284
        }
285
 
286
      /* Set arch_info to vax.  */
287
 
288
      arch = bfd_scan_arch ("vax");
289
      PRIV (is_vax) = TRUE;
290
#if VMS_DEBUG
291
      vms_debug (2, "arch is vax\n");
292
#endif
293
    }
294
  else if (target_vector == & vms_alpha_vec)
295
    {
296
      /* Set arch_info to alpha.   */
297
 
298
      arch = bfd_scan_arch ("alpha");
299
      PRIV (is_vax) = FALSE;
300
#if VMS_DEBUG
301
      vms_debug (2, "arch is alpha\n");
302
#endif
303
    }
304
 
305
  if (arch == NULL)
306
    {
307
#if VMS_DEBUG
308
      vms_debug (2, "arch not found\n");
309
#endif
310
      goto err_wrong_format;
311
    }
312
  abfd->arch_info = arch;
313
 
314
  return target_vector;
315
 
316
 err_wrong_format:
317
  bfd_set_error (bfd_error_wrong_format);
318
 error_ret:
319
  if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL)
320
    bfd_release (abfd, abfd->tdata.any);
321
  abfd->tdata.any = tdata_save;
322
  bfd_set_start_address (abfd, saddr_save);
323
  return NULL;
324
}
325
 
326
/* Check the format for a file being read.
327
   Return a (bfd_target *) if it's an archive file or zero.  */
328
 
329
static const struct bfd_target *
330
vms_archive_p (bfd * abfd ATTRIBUTE_UNUSED)
331
{
332
#if VMS_DEBUG
333
  vms_debug (1, "vms_archive_p (%p)\n", abfd);
334
#endif
335
 
336
  return NULL;
337
}
338
 
339
/* Set the format of a file being written.  */
340
 
341
static bfd_boolean
342
vms_mkobject (bfd * abfd)
343
{
344
#if VMS_DEBUG
345
  vms_debug (1, "vms_mkobject (%p)\n", abfd);
346
#endif
347
 
348
  if (!vms_initialize (abfd))
349
    return FALSE;
350
 
351
  {
352
#ifdef __VAX
353
    const bfd_arch_info_type *arch = bfd_scan_arch ("vax");
354
#else
355
    const bfd_arch_info_type *arch = bfd_scan_arch ("alpha");
356
#endif
357
    if (arch == NULL)
358
      {
359
        bfd_set_error (bfd_error_wrong_format);
360
        return FALSE;
361
      }
362
    abfd->arch_info = arch;
363
  }
364
 
365
  return TRUE;
366
}
367
 
368
/* Write cached information into a file being written, at bfd_close.  */
369
 
370
static bfd_boolean
371
vms_write_object_contents (bfd * abfd)
372
{
373
#if VMS_DEBUG
374
  vms_debug (1, "vms_write_object_contents (%p)\n", abfd);
375
#endif
376
 
377
  if (abfd->section_count > 0)                   /* we have sections */
378
    {
379
      if (PRIV (is_vax))
380
        {
381
          if (_bfd_vms_write_hdr (abfd, OBJ_S_C_HDR) != 0)
382
            return FALSE;
383
          if (_bfd_vms_write_gsd (abfd, OBJ_S_C_GSD) != 0)
384
            return FALSE;
385
          if (_bfd_vms_write_tir (abfd, OBJ_S_C_TIR) != 0)
386
            return FALSE;
387
          if (_bfd_vms_write_tbt (abfd, OBJ_S_C_TBT) != 0)
388
            return FALSE;
389
          if (_bfd_vms_write_dbg (abfd, OBJ_S_C_DBG) != 0)
390
            return FALSE;
391
          if (abfd->section_count > 255)
392
            {
393
              if (_bfd_vms_write_eom (abfd, OBJ_S_C_EOMW) != 0)
394
                return FALSE;
395
            }
396
          else
397
            {
398
              if (_bfd_vms_write_eom (abfd, OBJ_S_C_EOM) != 0)
399
                return FALSE;
400
            }
401
        }
402
      else
403
        {
404
          if (_bfd_vms_write_hdr (abfd, EOBJ_S_C_EMH) != 0)
405
            return FALSE;
406
          if (_bfd_vms_write_gsd (abfd, EOBJ_S_C_EGSD) != 0)
407
            return FALSE;
408
          if (_bfd_vms_write_tir (abfd, EOBJ_S_C_ETIR) != 0)
409
            return FALSE;
410
          if (_bfd_vms_write_tbt (abfd, EOBJ_S_C_ETBT) != 0)
411
            return FALSE;
412
          if (_bfd_vms_write_dbg (abfd, EOBJ_S_C_EDBG) != 0)
413
            return FALSE;
414
          if (_bfd_vms_write_eom (abfd, EOBJ_S_C_EEOM) != 0)
415
            return FALSE;
416
        }
417
    }
418
  return TRUE;
419
}
420
 
421
/* 4.1, generic.  */
422
 
423
/* Called when the BFD is being closed to do any necessary cleanup.  */
424
 
425
static bfd_boolean
426
vms_close_and_cleanup (bfd * abfd)
427
{
428
#if VMS_DEBUG
429
  vms_debug (1, "vms_close_and_cleanup (%p)\n", abfd);
430
#endif
431
  if (abfd == NULL
432
      || abfd->tdata.any == NULL)
433
    return TRUE;
434
 
435
  if (PRIV (vms_buf) != NULL)
436
    free (PRIV (vms_buf));
437
 
438
  if (PRIV (sections) != NULL)
439
    free (PRIV (sections));
440
 
441
  if (PRIV (vms_symbol_table))
442
    bfd_hash_table_free (PRIV (vms_symbol_table));
443
 
444
  bfd_release (abfd, abfd->tdata.any);
445
  abfd->tdata.any = NULL;
446
 
447
  return TRUE;
448
}
449
 
450
/* Ask the BFD to free all cached information.  */
451
 
452
static bfd_boolean
453
vms_bfd_free_cached_info (bfd * abfd ATTRIBUTE_UNUSED)
454
{
455
#if VMS_DEBUG
456
  vms_debug (1, "vms_bfd_free_cached_info (%p)\n", abfd);
457
#endif
458
  return TRUE;
459
}
460
 
461
/* Called when a new section is created.  */
462
 
463
static bfd_boolean
464
vms_new_section_hook (bfd * abfd, asection *section)
465
{
466
  /* Count hasn't been incremented yet.  */
467
  unsigned int section_count = abfd->section_count + 1;
468
 
469
#if VMS_DEBUG
470
  vms_debug (1, "vms_new_section_hook (%p, [%d]%s), count %d\n",
471
             abfd, section->index, section->name, section_count);
472
#endif
473
  bfd_set_section_alignment (abfd, section, 4);
474
 
475
  if (section_count > PRIV (section_count))
476
    {
477
      bfd_size_type amt = section_count;
478
      amt *= sizeof (asection *);
479
      PRIV (sections) = bfd_realloc_or_free (PRIV (sections), amt);
480
      if (PRIV (sections) == NULL)
481
        return FALSE;
482
      PRIV (section_count) = section_count;
483
    }
484
#if VMS_DEBUG
485
  vms_debug (6, "section_count: %d\n", PRIV (section_count));
486
#endif
487
  PRIV (sections)[section->index] = section;
488
#if VMS_DEBUG
489
  vms_debug (7, "%d: %s\n", section->index, section->name);
490
#endif
491
 
492
  return _bfd_generic_new_section_hook (abfd, section);
493
}
494
 
495
/* Read the contents of a section.
496
   buf points to a buffer of buf_size bytes to be filled with
497
   section data (starting at offset into section)  */
498
 
499
static bfd_boolean
500
vms_get_section_contents (bfd * abfd ATTRIBUTE_UNUSED,
501
                          asection *section ATTRIBUTE_UNUSED,
502
                          void * buf ATTRIBUTE_UNUSED,
503
                          file_ptr offset ATTRIBUTE_UNUSED,
504
                          bfd_size_type buf_size ATTRIBUTE_UNUSED)
505
{
506
#if VMS_DEBUG
507
  vms_debug (1, "vms_get_section_contents (%p, %s, %p, off %ld, size %d)\n",
508
                 abfd, section->name, buf, offset, (int)buf_size);
509
#endif
510
 
511
  /* Shouldn't be called, since all sections are IN_MEMORY.  */
512
  return FALSE;
513
}
514
 
515
/* Read the contents of a section.
516
   buf points to a buffer of buf_size bytes to be filled with
517
   section data (starting at offset into section).  */
518
 
519
static bfd_boolean
520
vms_get_section_contents_in_window (bfd * abfd ATTRIBUTE_UNUSED,
521
                                    asection *section ATTRIBUTE_UNUSED,
522
                                    bfd_window *w ATTRIBUTE_UNUSED,
523
                                    file_ptr offset ATTRIBUTE_UNUSED,
524
                                    bfd_size_type count ATTRIBUTE_UNUSED)
525
{
526
#if VMS_DEBUG
527
  vms_debug (1, "vms_get_section_contents_in_window (%p, %s, %p, off %ld, count %d)\n",
528
                 abfd, section->name, w, offset, (int)count);
529
#endif
530
 
531
  /* Shouldn't be called, since all sections are IN_MEMORY.  */
532
  return FALSE;
533
}
534
 
535
/* Part 4.2, copy private data.  */
536
 
537
/* Called to copy BFD general private data from one object file
538
   to another.  */
539
 
540
static bfd_boolean
541
vms_bfd_copy_private_bfd_data (bfd *src ATTRIBUTE_UNUSED,
542
                               bfd *dest ATTRIBUTE_UNUSED)
543
{
544
#if VMS_DEBUG
545
  vms_debug (1, "vms_bfd_copy_private_bfd_data (%p, %p)\n", src, dest);
546
#endif
547
  return TRUE;
548
}
549
 
550
/* Merge private BFD information from the BFD @var{ibfd} to the
551
   the output file BFD @var{obfd} when linking.  Return <<TRUE>>
552
   on success, <<FALSE>> on error.  Possible error returns are:
553
 
554
   o <<bfd_error_no_memory>> -
555
     Not enough memory exists to create private data for @var{obfd}.  */
556
 
557
static bfd_boolean
558
vms_bfd_merge_private_bfd_data (bfd * ibfd ATTRIBUTE_UNUSED,
559
                                bfd * obfd ATTRIBUTE_UNUSED)
560
{
561
#if VMS_DEBUG
562
  vms_debug (1,"vms_bfd_merge_private_bfd_data (%p, %p)\n", ibfd, obfd);
563
#endif
564
  return TRUE;
565
}
566
 
567
/* Set private BFD flag information in the BFD @var{abfd}.
568
   Return <<TRUE>> on success, <<FALSE>> on error.  Possible error
569
   returns are:
570
 
571
   o <<bfd_error_no_memory>> -
572
     Not enough memory exists to create private data for @var{obfd}.  */
573
 
574
static bfd_boolean
575
vms_bfd_set_private_flags (bfd * abfd ATTRIBUTE_UNUSED,
576
                           flagword flags ATTRIBUTE_UNUSED)
577
{
578
#if VMS_DEBUG
579
  vms_debug (1,"vms_bfd_set_private_flags (%p, %lx)\n", abfd, (long)flags);
580
#endif
581
  return TRUE;
582
}
583
 
584
/* Called to copy BFD private section data from one object file
585
   to another.  */
586
 
587
static bfd_boolean
588
vms_bfd_copy_private_section_data (bfd *srcbfd ATTRIBUTE_UNUSED,
589
                                   asection *srcsec ATTRIBUTE_UNUSED,
590
                                   bfd *dstbfd ATTRIBUTE_UNUSED,
591
                                   asection *dstsec ATTRIBUTE_UNUSED)
592
{
593
#if VMS_DEBUG
594
  vms_debug (1, "vms_bfd_copy_private_section_data (%p, %s, %p, %s)\n",
595
                 srcbfd, srcsec->name, dstbfd, dstsec->name);
596
#endif
597
  return TRUE;
598
}
599
 
600
/* Called to copy BFD private symbol data from one object file
601
   to another.  */
602
 
603
static bfd_boolean
604
vms_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
605
                                  asymbol *isym ATTRIBUTE_UNUSED,
606
                                  bfd *obfd ATTRIBUTE_UNUSED,
607
                                  asymbol *osym ATTRIBUTE_UNUSED)
608
{
609
#if VMS_DEBUG
610
  vms_debug (1, "vms_bfd_copy_private_symbol_data (%p, %s, %p, %s)\n",
611
                 ibfd, isym->name, obfd, osym->name);
612
#endif
613
  return TRUE;
614
}
615
 
616
/* Part 4.3, core file.  */
617
 
618
/* Return a read-only string explaining which program was running
619
   when it failed and produced the core file abfd.  */
620
 
621
static char *
622
vms_core_file_failing_command (bfd * abfd ATTRIBUTE_UNUSED)
623
{
624
#if VMS_DEBUG
625
  vms_debug (1, "vms_core_file_failing_command (%p)\n", abfd);
626
#endif
627
  return NULL;
628
}
629
 
630
/* Returns the signal number which caused the core dump which
631
   generated the file the BFD abfd is attached to.  */
632
 
633
static int
634
vms_core_file_failing_signal (bfd * abfd ATTRIBUTE_UNUSED)
635
{
636
#if VMS_DEBUG
637
  vms_debug (1, "vms_core_file_failing_signal (%p)\n", abfd);
638
#endif
639
  return 0;
640
}
641
 
642
/* Return TRUE if the core file attached to core_bfd was generated
643
   by a run of the executable file attached to exec_bfd, FALSE otherwise.  */
644
 
645
static bfd_boolean
646
vms_core_file_matches_executable_p (bfd * abfd ATTRIBUTE_UNUSED,
647
                                    bfd *bbfd ATTRIBUTE_UNUSED)
648
{
649
#if VMS_DEBUG
650
  vms_debug (1, "vms_core_file_matches_executable_p (%p, %p)\n", abfd, bbfd);
651
#endif
652
  return FALSE;
653
}
654
 
655
/* Part 4.4, archive.  */
656
 
657
/* ???  do something with an archive map.
658
   Return FALSE on error, TRUE otherwise.  */
659
 
660
static bfd_boolean
661
vms_slurp_armap (bfd * abfd ATTRIBUTE_UNUSED)
662
{
663
#if VMS_DEBUG
664
  vms_debug (1, "vms_slurp_armap (%p)\n", abfd);
665
#endif
666
  return FALSE;
667
}
668
 
669
/* ???  do something with an extended name table.
670
   Return FALSE on error, TRUE otherwise.  */
671
 
672
static bfd_boolean
673
vms_slurp_extended_name_table (bfd * abfd ATTRIBUTE_UNUSED)
674
{
675
#if VMS_DEBUG
676
  vms_debug (1, "vms_slurp_extended_name_table (%p)\n", abfd);
677
#endif
678
  return FALSE;
679
}
680
 
681
/* ???  do something with an extended name table.
682
   Return FALSE on error, TRUE otherwise.  */
683
 
684
static bfd_boolean
685
vms_construct_extended_name_table (bfd * abfd ATTRIBUTE_UNUSED,
686
                                   char **tabloc ATTRIBUTE_UNUSED,
687
                                   bfd_size_type *tablen ATTRIBUTE_UNUSED,
688
                                   const char **name ATTRIBUTE_UNUSED)
689
{
690
#if VMS_DEBUG
691
  vms_debug (1, "vms_construct_extended_name_table (%p)\n", abfd);
692
#endif
693
  return FALSE;
694
}
695
 
696
/* Truncate the name of an archive to match system-dependent restrictions.  */
697
 
698
static void
699
vms_truncate_arname (bfd * abfd ATTRIBUTE_UNUSED,
700
                     const char *pathname ATTRIBUTE_UNUSED,
701
                     char *arhdr ATTRIBUTE_UNUSED)
702
{
703
#if VMS_DEBUG
704
  vms_debug (1, "vms_truncate_arname (%p, %s, %s)\n", abfd, pathname, arhdr);
705
#endif
706
  return;
707
}
708
 
709
/* ???  write archive map.  */
710
 
711
static bfd_boolean
712
vms_write_armap (bfd *arch ATTRIBUTE_UNUSED,
713
                 unsigned int elength ATTRIBUTE_UNUSED,
714
                 struct orl *map ATTRIBUTE_UNUSED,
715
                 unsigned int orl_count ATTRIBUTE_UNUSED,
716
                 int stridx ATTRIBUTE_UNUSED)
717
{
718
#if VMS_DEBUG
719
  vms_debug (1, "vms_write_armap (%p, %d, %p, %d %d)\n",
720
        arch, elength, map, orl_count, stridx);
721
#endif
722
  return TRUE;
723
}
724
 
725
/* Read archive header ???  */
726
 
727
static void *
728
vms_read_ar_hdr (bfd * abfd ATTRIBUTE_UNUSED)
729
{
730
#if VMS_DEBUG
731
  vms_debug (1, "vms_read_ar_hdr (%p)\n", abfd);
732
#endif
733
  return NULL;
734
}
735
 
736
/* Provided a BFD, @var{archive}, containing an archive and NULL, open
737
   an input BFD on the first contained element and returns that.
738
   Subsequent calls should pass the archive and the previous return value
739
   to return a created BFD to the next contained element.
740
   NULL is returned when there are no more.  */
741
 
742
static bfd *
743
vms_openr_next_archived_file (bfd *arch ATTRIBUTE_UNUSED,
744
                              bfd *prev ATTRIBUTE_UNUSED)
745
{
746
#if VMS_DEBUG
747
  vms_debug (1, "vms_openr_next_archived_file (%p, %p)\n", arch, prev);
748
#endif
749
  return NULL;
750
}
751
 
752
/* Return the BFD which is referenced by the symbol in ABFD indexed by
753
   INDEX.  INDEX should have been returned by bfd_get_next_mapent.  */
754
 
755
static bfd *
756
vms_get_elt_at_index (bfd * abfd, symindex index)
757
{
758
#if VMS_DEBUG
759
  vms_debug (1, "vms_get_elt_at_index (%p, %p)\n", abfd, index);
760
#endif
761
  return _bfd_generic_get_elt_at_index (abfd, index);
762
}
763
 
764
/* ???
765
   -> bfd_generic_stat_arch_elt.  */
766
 
767
static int
768
vms_generic_stat_arch_elt (bfd * abfd, struct stat *st)
769
{
770
#if VMS_DEBUG
771
  vms_debug (1, "vms_generic_stat_arch_elt (%p, %p)\n", abfd, st);
772
#endif
773
  return bfd_generic_stat_arch_elt (abfd, st);
774
}
775
 
776
/* This is a new function in bfd 2.5.  */
777
 
778
static bfd_boolean
779
vms_update_armap_timestamp (bfd * abfd ATTRIBUTE_UNUSED)
780
{
781
#if VMS_DEBUG
782
  vms_debug (1, "vms_update_armap_timestamp (%p)\n", abfd);
783
#endif
784
  return TRUE;
785
}
786
 
787
/* Part 4.5, symbols.  */
788
 
789
/* Return the number of bytes required to store a vector of pointers
790
   to asymbols for all the symbols in the BFD abfd, including a
791
   terminal NULL pointer. If there are no symbols in the BFD,
792
   then return 0.  If an error occurs, return -1.  */
793
 
794
static long
795
vms_get_symtab_upper_bound (bfd * abfd)
796
{
797
#if VMS_DEBUG
798
  vms_debug (1, "vms_get_symtab_upper_bound (%p), %d symbols\n", abfd, PRIV (gsd_sym_count));
799
#endif
800
  return (PRIV (gsd_sym_count) + 1) * sizeof (asymbol *);
801
}
802
 
803
/* Copy symbols from hash table to symbol vector
804
 
805
   called from bfd_hash_traverse in vms_canonicalize_symtab
806
   init counter to 0 if entry == 0.  */
807
 
808
static bfd_boolean
809
copy_symbols (struct bfd_hash_entry *entry, void * arg)
810
{
811
  bfd * abfd = (bfd *) arg;
812
 
813
  if (entry == NULL)    /* Init counter.  */
814
    PRIV (symnum) = 0;
815
  else                  /* Fill vector, inc counter.  */
816
    PRIV (symcache)[PRIV (symnum)++] = ((vms_symbol_entry *)entry)->symbol;
817
 
818
  return TRUE;
819
}
820
 
821
/* Read the symbols from the BFD abfd, and fills in the vector
822
   location with pointers to the symbols and a trailing NULL.
823
 
824
   Return number of symbols read.   */
825
 
826
static long
827
vms_canonicalize_symtab (bfd * abfd, asymbol **symbols)
828
{
829
#if VMS_DEBUG
830
  vms_debug (1, "vms_canonicalize_symtab (%p, <ret>)\n", abfd);
831
#endif
832
 
833
  /* Init counter.  */
834
  copy_symbols (NULL, abfd);
835
 
836
  /* Traverse table and fill symbols vector.  */
837
  PRIV (symcache) = symbols;
838
  bfd_hash_traverse (PRIV (vms_symbol_table), copy_symbols, abfd);
839
 
840
  symbols[PRIV (gsd_sym_count)] = NULL;
841
 
842
  return PRIV (gsd_sym_count);
843
}
844
 
845
/* Print symbol to file according to how. how is one of
846
   bfd_print_symbol_name        just print the name
847
   bfd_print_symbol_more        print more (???)
848
   bfd_print_symbol_all print all we know, which is not much right now :-).  */
849
 
850
static void
851
vms_print_symbol (bfd * abfd,
852
                  void * file,
853
                  asymbol *symbol,
854
                  bfd_print_symbol_type how)
855
{
856
#if VMS_DEBUG
857
  vms_debug (1, "vms_print_symbol (%p, %p, %p, %d)\n", abfd, file, symbol, how);
858
#endif
859
 
860
  switch (how)
861
    {
862
      case bfd_print_symbol_name:
863
      case bfd_print_symbol_more:
864
        fprintf ((FILE *)file," %s", symbol->name);
865
      break;
866
 
867
      case bfd_print_symbol_all:
868
        {
869
          const char *section_name = symbol->section->name;
870
 
871
          bfd_print_symbol_vandf (abfd, file, symbol);
872
 
873
          fprintf ((FILE *) file," %-8s %s", section_name, symbol->name);
874
        }
875
      break;
876
    }
877
}
878
 
879
/* Return information about symbol in ret.
880
 
881
   fill type, value and name
882
   type:
883
        A       absolute
884
        B       bss segment symbol
885
        C       common symbol
886
        D       data segment symbol
887
        f       filename
888
        t       a static function symbol
889
        T       text segment symbol
890
        U       undefined
891
        -       debug.  */
892
 
893
static void
894
vms_get_symbol_info (bfd * abfd ATTRIBUTE_UNUSED,
895
                     asymbol *symbol,
896
                     symbol_info *ret)
897
{
898
  asection *sec;
899
 
900
#if VMS_DEBUG
901
  vms_debug (1, "vms_get_symbol_info (%p, %p, %p)\n", abfd, symbol, ret);
902
#endif
903
 
904
  sec = symbol->section;
905
 
906
  if (ret == NULL)
907
    return;
908
 
909
  if (bfd_is_com_section (sec))
910
    ret->type = 'C';
911
  else if (bfd_is_abs_section (sec))
912
    ret->type = 'A';
913
  else if (bfd_is_und_section (sec))
914
    ret->type = 'U';
915
  else if (bfd_is_ind_section (sec))
916
    ret->type = 'I';
917
  else if (bfd_get_section_flags (abfd, sec) & SEC_CODE)
918
    ret->type = 'T';
919
  else if (bfd_get_section_flags (abfd, sec) & SEC_DATA)
920
    ret->type = 'D';
921
  else if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
922
    ret->type = 'B';
923
  else
924
    ret->type = '-';
925
 
926
  if (ret->type != 'U')
927
    ret->value = symbol->value + symbol->section->vma;
928
  else
929
    ret->value = 0;
930
  ret->name = symbol->name;
931
}
932
 
933
/* Return TRUE if the given symbol sym in the BFD abfd is
934
   a compiler generated local label, else return FALSE.  */
935
 
936
static bfd_boolean
937
vms_bfd_is_local_label_name (bfd * abfd ATTRIBUTE_UNUSED,
938
                             const char *name)
939
{
940
#if VMS_DEBUG
941
  vms_debug (1, "vms_bfd_is_local_label_name (%p, %s)\n", abfd, name);
942
#endif
943
  return name[0] == '$';
944
}
945
 
946
/* Get source line number for symbol.  */
947
 
948
static alent *
949
vms_get_lineno (bfd * abfd ATTRIBUTE_UNUSED,
950
                asymbol *symbol ATTRIBUTE_UNUSED)
951
{
952
#if VMS_DEBUG
953
  vms_debug (1, "vms_get_lineno (%p, %p)\n", abfd, symbol);
954
#endif
955
  return NULL;
956
}
957
 
958
/* Provided a BFD, a section and an offset into the section, calculate and
959
   return the name of the source file and the line nearest to the wanted
960
   location.  */
961
 
962
static bfd_boolean
963
vms_find_nearest_line (bfd * abfd ATTRIBUTE_UNUSED,
964
                       asection *section ATTRIBUTE_UNUSED,
965
                       asymbol **symbols ATTRIBUTE_UNUSED,
966
                       bfd_vma offset ATTRIBUTE_UNUSED,
967
                       const char **file ATTRIBUTE_UNUSED,
968
                       const char **func ATTRIBUTE_UNUSED,
969
                       unsigned int *line ATTRIBUTE_UNUSED)
970
{
971
#if VMS_DEBUG
972
  vms_debug (1, "vms_find_nearest_line (%p, %s, %p, %ld, <ret>, <ret>, <ret>)\n",
973
              abfd, section->name, symbols, (long int)offset);
974
#endif
975
  return FALSE;
976
}
977
 
978
static bfd_boolean
979
vms_find_inliner_info (bfd * abfd ATTRIBUTE_UNUSED,
980
                       const char **file ATTRIBUTE_UNUSED,
981
                       const char **func ATTRIBUTE_UNUSED,
982
                       unsigned int *line ATTRIBUTE_UNUSED)
983
{
984
#if VMS_DEBUG
985
  vms_debug (1, "vms_find_inliner_info (%p, <ret>, <ret>, <ret>)\n",
986
             abfd);
987
#endif
988
  return FALSE;
989
}
990
 
991
/* Back-door to allow format-aware applications to create debug symbols
992
   while using BFD for everything else.  Currently used by the assembler
993
   when creating COFF files.  */
994
 
995
static asymbol *
996
vms_bfd_make_debug_symbol (bfd * abfd ATTRIBUTE_UNUSED,
997
                           void *ptr ATTRIBUTE_UNUSED,
998
                           unsigned long size ATTRIBUTE_UNUSED)
999
{
1000
#if VMS_DEBUG
1001
  vms_debug (1, "vms_bfd_make_debug_symbol (%p, %p, %ld)\n", abfd, ptr, size);
1002
#endif
1003
  return NULL;
1004
}
1005
 
1006
/* Read minisymbols.  For minisymbols, we use the unmodified a.out
1007
   symbols.  The minisymbol_to_symbol function translates these into
1008
   BFD asymbol structures.  */
1009
 
1010
static long
1011
vms_read_minisymbols (bfd * abfd,
1012
                      bfd_boolean dynamic,
1013
                      void * *minisymsp,
1014
                      unsigned int *sizep)
1015
{
1016
#if VMS_DEBUG
1017
  vms_debug (1, "vms_read_minisymbols (%p, %d, %p, %d)\n", abfd, dynamic, minisymsp, *sizep);
1018
#endif
1019
  return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
1020
}
1021
 
1022
/* Convert a minisymbol to a BFD asymbol.  A minisymbol is just an
1023
   unmodified a.out symbol.  The SYM argument is a structure returned
1024
   by bfd_make_empty_symbol, which we fill in here.  */
1025
 
1026
static asymbol *
1027
vms_minisymbol_to_symbol (bfd * abfd,
1028
                          bfd_boolean dynamic,
1029
                          const void * minisym,
1030
                          asymbol *sym)
1031
{
1032
#if VMS_DEBUG
1033
  vms_debug (1, "vms_minisymbol_to_symbol (%p, %d, %p, %p)\n", abfd, dynamic, minisym, sym);
1034
#endif
1035
  return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
1036
}
1037
 
1038
/* Part 4.6, relocations.  */
1039
 
1040
/* Return the number of bytes required to store the relocation information
1041
   associated with section sect attached to bfd abfd.
1042
   If an error occurs, return -1.  */
1043
 
1044
static long
1045
vms_get_reloc_upper_bound (bfd * abfd ATTRIBUTE_UNUSED,
1046
                           asection *section ATTRIBUTE_UNUSED)
1047
{
1048
#if VMS_DEBUG
1049
  vms_debug (1, "vms_get_reloc_upper_bound (%p, %s)\n", abfd, section->name);
1050
#endif
1051
  return -1L;
1052
}
1053
 
1054
/* Call the back end associated with the open BFD abfd and translate the
1055
   external form of the relocation information attached to sec into the
1056
   internal canonical form.  Place the table into memory at loc, which has
1057
   been preallocated, usually by a call to bfd_get_reloc_upper_bound.
1058
   Returns the number of relocs, or -1 on error.  */
1059
 
1060
static long
1061
vms_canonicalize_reloc (bfd * abfd ATTRIBUTE_UNUSED,
1062
                        asection *section ATTRIBUTE_UNUSED,
1063
                        arelent **location ATTRIBUTE_UNUSED,
1064
                        asymbol **symbols ATTRIBUTE_UNUSED)
1065
{
1066
#if VMS_DEBUG
1067
  vms_debug (1, "vms_canonicalize_reloc (%p, %s, <ret>, <ret>)\n", abfd, section->name);
1068
#endif
1069
  return FALSE;
1070
}
1071
 
1072
/* This is just copied from ecoff-alpha, needs to be fixed probably.  */
1073
 
1074
/* How to process the various reloc types.  */
1075
 
1076
static bfd_reloc_status_type
1077
reloc_nil (bfd * abfd ATTRIBUTE_UNUSED,
1078
           arelent *reloc ATTRIBUTE_UNUSED,
1079
           asymbol *sym ATTRIBUTE_UNUSED,
1080
           void * data ATTRIBUTE_UNUSED,
1081
           asection *sec ATTRIBUTE_UNUSED,
1082
           bfd *output_bfd ATTRIBUTE_UNUSED,
1083
           char **error_message ATTRIBUTE_UNUSED)
1084
{
1085
#if VMS_DEBUG
1086
  vms_debug (1, "reloc_nil (abfd %p, output_bfd %p)\n", abfd, output_bfd);
1087
  vms_debug (2, "In section %s, symbol %s\n",
1088
        sec->name, sym->name);
1089
  vms_debug (2, "reloc sym %s, addr %08lx, addend %08lx, reloc is a %s\n",
1090
                reloc->sym_ptr_ptr[0]->name,
1091
                (unsigned long)reloc->address,
1092
                (unsigned long)reloc->addend, reloc->howto->name);
1093
  vms_debug (2, "data at %p\n", data);
1094
  /*  _bfd_hexdump (2, data, bfd_get_reloc_size (reloc->howto), 0); */
1095
#endif
1096
 
1097
  return bfd_reloc_ok;
1098
}
1099
 
1100
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
1101
   from smaller values.  Start with zero, widen, *then* decrement.  */
1102
#define MINUS_ONE       (((bfd_vma)0) - 1)
1103
 
1104
static reloc_howto_type alpha_howto_table[] =
1105
{
1106
  HOWTO (ALPHA_R_IGNORE,        /* Type.  */
1107
         0,                      /* Rightshift.  */
1108
         0,                      /* Size (0 = byte, 1 = short, 2 = long).  */
1109
         8,                     /* Bitsize.  */
1110
         TRUE,                  /* PC relative.  */
1111
         0,                      /* Bitpos.  */
1112
         complain_overflow_dont,/* Complain_on_overflow.  */
1113
         reloc_nil,             /* Special_function.  */
1114
         "IGNORE",              /* Name.  */
1115
         TRUE,                  /* Partial_inplace.  */
1116
         0,                      /* Source mask */
1117
         0,                      /* Dest mask.  */
1118
         TRUE),                 /* PC rel offset.  */
1119
 
1120
  /* A 64 bit reference to a symbol.  */
1121
  HOWTO (ALPHA_R_REFQUAD,       /* Type.  */
1122
         0,                      /* Rightshift.  */
1123
         4,                     /* Size (0 = byte, 1 = short, 2 = long).  */
1124
         64,                    /* Bitsize.  */
1125
         FALSE,                 /* PC relative.  */
1126
         0,                      /* Bitpos.  */
1127
         complain_overflow_bitfield, /* Complain_on_overflow.  */
1128
         reloc_nil,             /* Special_function.  */
1129
         "REFQUAD",             /* Name.  */
1130
         TRUE,                  /* Partial_inplace.  */
1131
         MINUS_ONE,             /* Source mask.  */
1132
         MINUS_ONE,             /* Dest mask.  */
1133
         FALSE),                /* PC rel offset.  */
1134
 
1135
  /* A 21 bit branch.  The native assembler generates these for
1136
     branches within the text segment, and also fills in the PC
1137
     relative offset in the instruction.  */
1138
  HOWTO (ALPHA_R_BRADDR,        /* Type.  */
1139
         2,                     /* Rightshift.  */
1140
         2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
1141
         21,                    /* Bitsize.  */
1142
         TRUE,                  /* PC relative.  */
1143
         0,                      /* Bitpos.  */
1144
         complain_overflow_signed, /* Complain_on_overflow.  */
1145
         reloc_nil,             /* Special_function.  */
1146
         "BRADDR",              /* Name.  */
1147
         TRUE,                  /* Partial_inplace.  */
1148
         0x1fffff,              /* Source mask.  */
1149
         0x1fffff,              /* Dest mask.  */
1150
         FALSE),                /* PC rel offset.  */
1151
 
1152
  /* A hint for a jump to a register.  */
1153
  HOWTO (ALPHA_R_HINT,          /* Type.  */
1154
         2,                     /* Rightshift.  */
1155
         1,                     /* Size (0 = byte, 1 = short, 2 = long).  */
1156
         14,                    /* Bitsize.  */
1157
         TRUE,                  /* PC relative.  */
1158
         0,                      /* Bitpos.  */
1159
         complain_overflow_dont,/* Complain_on_overflow.  */
1160
         reloc_nil,             /* Special_function.  */
1161
         "HINT",                /* Name.  */
1162
         TRUE,                  /* Partial_inplace.  */
1163
         0x3fff,                /* Source mask.  */
1164
         0x3fff,                /* Dest mask.  */
1165
         FALSE),                /* PC rel offset.  */
1166
 
1167
  /* 16 bit PC relative offset.  */
1168
  HOWTO (ALPHA_R_SREL16,        /* Type.  */
1169
         0,                      /* Rightshift.  */
1170
         1,                     /* Size (0 = byte, 1 = short, 2 = long).  */
1171
         16,                    /* Bitsize.  */
1172
         TRUE,                  /* PC relative.  */
1173
         0,                      /* Bitpos.  */
1174
         complain_overflow_signed, /* Complain_on_overflow.  */
1175
         reloc_nil,             /* Special_function.  */
1176
         "SREL16",              /* Name.  */
1177
         TRUE,                  /* Partial_inplace.  */
1178
         0xffff,                /* Source mask.  */
1179
         0xffff,                /* Dest mask.  */
1180
         FALSE),                /* PC rel offset.  */
1181
 
1182
  /* 32 bit PC relative offset.  */
1183
  HOWTO (ALPHA_R_SREL32,        /* Type.  */
1184
         0,                      /* Rightshift.  */
1185
         2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
1186
         32,                    /* Bitsize.  */
1187
         TRUE,                  /* PC relative.  */
1188
         0,                      /* Bitpos.  */
1189
         complain_overflow_signed, /* Complain_on_overflow.  */
1190
         reloc_nil,             /* Special_function.  */
1191
         "SREL32",              /* Name.  */
1192
         TRUE,                  /* Partial_inplace.  */
1193
         0xffffffff,            /* Source mask.  */
1194
         0xffffffff,            /* Dest mask.  */
1195
         FALSE),                /* PC rel offset.  */
1196
 
1197
  /* A 64 bit PC relative offset.  */
1198
  HOWTO (ALPHA_R_SREL64,        /* Type.  */
1199
         0,                      /* Rightshift.  */
1200
         4,                     /* Size (0 = byte, 1 = short, 2 = long).  */
1201
         64,                    /* Bitsize.  */
1202
         TRUE,                  /* PC relative.  */
1203
         0,                      /* Bitpos.  */
1204
         complain_overflow_signed, /* Complain_on_overflow.  */
1205
         reloc_nil,             /* Special_function.  */
1206
         "SREL64",              /* Name.  */
1207
         TRUE,                  /* Partial_inplace.  */
1208
         MINUS_ONE,             /* Source mask.  */
1209
         MINUS_ONE,             /* Dest mask.  */
1210
         FALSE),                /* PC rel offset.  */
1211
 
1212
  /* Push a value on the reloc evaluation stack.  */
1213
  HOWTO (ALPHA_R_OP_PUSH,       /* Type.  */
1214
         0,                      /* Rightshift.  */
1215
         0,                      /* Size (0 = byte, 1 = short, 2 = long).  */
1216
         0,                      /* Bitsize.  */
1217
         FALSE,                 /* PC relative.  */
1218
         0,                      /* Bitpos.  */
1219
         complain_overflow_dont,/* Complain_on_overflow.  */
1220
         reloc_nil,             /* Special_function.  */
1221
         "OP_PUSH",             /* Name.  */
1222
         FALSE,                 /* Partial_inplace.  */
1223
         0,                      /* Source mask.  */
1224
         0,                      /* Dest mask.  */
1225
         FALSE),                /* PC rel offset.  */
1226
 
1227
  /* Store the value from the stack at the given address.  Store it in
1228
     a bitfield of size r_size starting at bit position r_offset.  */
1229
  HOWTO (ALPHA_R_OP_STORE,      /* Type.  */
1230
         0,                      /* Rightshift.  */
1231
         4,                     /* Size (0 = byte, 1 = short, 2 = long).  */
1232
         64,                    /* Bitsize.  */
1233
         FALSE,                 /* PC relative.  */
1234
         0,                      /* Bitpos.  */
1235
         complain_overflow_dont,/* Complain_on_overflow.  */
1236
         reloc_nil,             /* Special_function.  */
1237
         "OP_STORE",            /* Name.  */
1238
         FALSE,                 /* Partial_inplace.  */
1239
         0,                      /* Source mask.  */
1240
         MINUS_ONE,             /* Dest mask.  */
1241
         FALSE),                /* PC rel offset.  */
1242
 
1243
  /* Subtract the reloc address from the value on the top of the
1244
     relocation stack.  */
1245
  HOWTO (ALPHA_R_OP_PSUB,       /* Type.  */
1246
         0,                      /* Rightshift.  */
1247
         0,                      /* Size (0 = byte, 1 = short, 2 = long).  */
1248
         0,                      /* Bitsize.  */
1249
         FALSE,                 /* PC relative.  */
1250
         0,                      /* Bitpos.  */
1251
         complain_overflow_dont,/* Complain_on_overflow.  */
1252
         reloc_nil,             /* Special_function.  */
1253
         "OP_PSUB",             /* Name.  */
1254
         FALSE,                 /* Partial_inplace.  */
1255
         0,                      /* Source mask.  */
1256
         0,                      /* Dest mask.  */
1257
         FALSE),                /* PC rel offset.  */
1258
 
1259
  /* Shift the value on the top of the relocation stack right by the
1260
     given value.  */
1261
  HOWTO (ALPHA_R_OP_PRSHIFT,    /* Type.  */
1262
         0,                      /* Rightshift.  */
1263
         0,                      /* Size (0 = byte, 1 = short, 2 = long).  */
1264
         0,                      /* Bitsize.  */
1265
         FALSE,                 /* PC relative.  */
1266
         0,                      /* Bitpos.  */
1267
         complain_overflow_dont,/* Complain_on_overflow.  */
1268
         reloc_nil,             /* Special_function.  */
1269
         "OP_PRSHIFT",          /* Name.  */
1270
         FALSE,                 /* Partial_inplace.  */
1271
         0,                      /* Source mask.  */
1272
         0,                      /* Dest mask.  */
1273
         FALSE),                /* PC rel offset.  */
1274
 
1275
  /* Hack. Linkage is done by linker.  */
1276
  HOWTO (ALPHA_R_LINKAGE,       /* Type.  */
1277
         0,                      /* Rightshift.  */
1278
         8,                     /* Size (0 = byte, 1 = short, 2 = long).  */
1279
         256,                   /* Bitsize.  */
1280
         FALSE,                 /* PC relative.  */
1281
         0,                      /* Bitpos.  */
1282
         complain_overflow_dont,/* Complain_on_overflow.  */
1283
         reloc_nil,             /* Special_function.  */
1284
         "LINKAGE",             /* Name.  */
1285
         FALSE,                 /* Partial_inplace.  */
1286
         0,                      /* Source mask.  */
1287
         0,                      /* Dest mask.  */
1288
         FALSE),                /* PC rel offset.  */
1289
 
1290
  /* A 32 bit reference to a symbol.  */
1291
  HOWTO (ALPHA_R_REFLONG,       /* Type.  */
1292
         0,                      /* Rightshift.  */
1293
         2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
1294
         32,                    /* Bitsize.  */
1295
         FALSE,                 /* PC relative.  */
1296
         0,                      /* Bitpos.  */
1297
         complain_overflow_bitfield, /* Complain_on_overflow.  */
1298
         reloc_nil,             /* Special_function.  */
1299
         "REFLONG",             /* Name.  */
1300
         TRUE,                  /* Partial_inplace.  */
1301
         0xffffffff,            /* Source mask.  */
1302
         0xffffffff,            /* Dest mask.  */
1303
         FALSE),                /* PC rel offset.  */
1304
 
1305
  /* A 64 bit reference to a procedure, written as 32 bit value.  */
1306
  HOWTO (ALPHA_R_CODEADDR,      /* Type.  */
1307
         0,                      /* Rightshift.  */
1308
         4,                     /* Size (0 = byte, 1 = short, 2 = long).  */
1309
         64,                    /* Bitsize.  */
1310
         FALSE,                 /* PC relative.  */
1311
         0,                      /* Bitpos.  */
1312
         complain_overflow_signed,/* Complain_on_overflow.  */
1313
         reloc_nil,             /* Special_function.  */
1314
         "CODEADDR",            /* Name.  */
1315
         FALSE,                 /* Partial_inplace.  */
1316
         0xffffffff,            /* Source mask.  */
1317
         0xffffffff,            /* Dest mask.  */
1318
         FALSE),                /* PC rel offset.  */
1319
 
1320
};
1321
 
1322
/* Return a pointer to a howto structure which, when invoked, will perform
1323
   the relocation code on data from the architecture noted.  */
1324
 
1325
static const struct reloc_howto_struct *
1326
vms_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
1327
                           bfd_reloc_code_real_type code)
1328
{
1329
  int alpha_type;
1330
 
1331
#if VMS_DEBUG
1332
  vms_debug (1, "vms_bfd_reloc_type_lookup (%p, %d)\t", abfd, code);
1333
#endif
1334
 
1335
  switch (code)
1336
    {
1337
      case BFD_RELOC_16:                alpha_type = ALPHA_R_SREL16;    break;
1338
      case BFD_RELOC_32:                alpha_type = ALPHA_R_REFLONG;   break;
1339
      case BFD_RELOC_64:                alpha_type = ALPHA_R_REFQUAD;   break;
1340
      case BFD_RELOC_CTOR:              alpha_type = ALPHA_R_REFQUAD;   break;
1341
      case BFD_RELOC_23_PCREL_S2:       alpha_type = ALPHA_R_BRADDR;    break;
1342
      case BFD_RELOC_ALPHA_HINT:        alpha_type = ALPHA_R_HINT;      break;
1343
      case BFD_RELOC_16_PCREL:          alpha_type = ALPHA_R_SREL16;    break;
1344
      case BFD_RELOC_32_PCREL:          alpha_type = ALPHA_R_SREL32;    break;
1345
      case BFD_RELOC_64_PCREL:          alpha_type = ALPHA_R_SREL64;    break;
1346
      case BFD_RELOC_ALPHA_LINKAGE:     alpha_type = ALPHA_R_LINKAGE;   break;
1347
      case BFD_RELOC_ALPHA_CODEADDR:    alpha_type = ALPHA_R_CODEADDR;  break;
1348
      default:
1349
        (*_bfd_error_handler) ("reloc (%d) is *UNKNOWN*", code);
1350
        return NULL;
1351
    }
1352
#if VMS_DEBUG
1353
  vms_debug (2, "reloc is %s\n", alpha_howto_table[alpha_type].name);
1354
#endif
1355
  return & alpha_howto_table[alpha_type];
1356
}
1357
 
1358
static reloc_howto_type *
1359
vms_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1360
                           const char *r_name)
1361
{
1362
  unsigned int i;
1363
 
1364
  for (i = 0;
1365
       i < sizeof (alpha_howto_table) / sizeof (alpha_howto_table[0]);
1366
       i++)
1367
    if (alpha_howto_table[i].name != NULL
1368
        && strcasecmp (alpha_howto_table[i].name, r_name) == 0)
1369
      return &alpha_howto_table[i];
1370
 
1371
  return NULL;
1372
}
1373
 
1374
/* Part 4.7, writing an object file.  */
1375
 
1376
/* Set the architecture and machine type in BFD abfd to arch and mach.
1377
   Find the correct pointer to a structure and insert it into the arch_info
1378
   pointer.  */
1379
 
1380
static bfd_boolean
1381
vms_set_arch_mach (bfd * abfd,
1382
                   enum bfd_architecture arch ATTRIBUTE_UNUSED,
1383
                   unsigned long mach ATTRIBUTE_UNUSED)
1384
{
1385
#if VMS_DEBUG
1386
  vms_debug (1, "vms_set_arch_mach (%p, %d, %ld)\n", abfd, arch, mach);
1387
#endif
1388
  abfd->arch_info = bfd_scan_arch ("alpha");
1389
 
1390
  return TRUE;
1391
}
1392
 
1393
/* Sets the contents of the section section in BFD abfd to the data starting
1394
   in memory at data. The data is written to the output section starting at
1395
   offset offset for count bytes.
1396
 
1397
   Normally TRUE is returned, else FALSE. Possible error returns are:
1398
   o bfd_error_no_contents - The output section does not have the
1399
        SEC_HAS_CONTENTS attribute, so nothing can be written to it.
1400
   o and some more too  */
1401
 
1402
static bfd_boolean
1403
vms_set_section_contents (bfd * abfd,
1404
                          asection *section,
1405
                          const void * location,
1406
                          file_ptr offset,
1407
                          bfd_size_type count)
1408
{
1409
#if VMS_DEBUG
1410
  vms_debug (1, "vms_set_section_contents (%p, sec %s, loc %p, off %ld, count %d)\n",
1411
             abfd, section->name, location, (long int)offset, (int)count);
1412
  vms_debug (2, "size %d\n", (int) section->size);
1413
#endif
1414
  return _bfd_save_vms_section (abfd, section, location, offset, count);
1415
}
1416
 
1417
/* Part 4.8, linker.  */
1418
 
1419
/* Get the size of the section headers.  */
1420
 
1421
static int
1422
vms_sizeof_headers (bfd * abfd ATTRIBUTE_UNUSED,
1423
                    struct bfd_link_info *info ATTRIBUTE_UNUSED)
1424
{
1425
#if VMS_DEBUG
1426
  vms_debug (1, "vms_sizeof_headers (%p, %s)\n", abfd, (reloc)?"True":"False");
1427
#endif
1428
  return 0;
1429
}
1430
 
1431
/* Provides default handling of relocation effort for back ends
1432
   which can't be bothered to do it efficiently.  */
1433
 
1434
static bfd_byte *
1435
vms_bfd_get_relocated_section_contents (bfd * abfd ATTRIBUTE_UNUSED,
1436
                                        struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
1437
                                        struct bfd_link_order *link_order ATTRIBUTE_UNUSED,
1438
                                        bfd_byte *data ATTRIBUTE_UNUSED,
1439
                                        bfd_boolean relocatable ATTRIBUTE_UNUSED,
1440
                                        asymbol **symbols ATTRIBUTE_UNUSED)
1441
{
1442
#if VMS_DEBUG
1443
  vms_debug (1, "vms_bfd_get_relocated_section_contents (%p, %p, %p, %p, %s, %p)\n",
1444
             abfd, link_info, link_order, data, (relocatable)?"True":"False", symbols);
1445
#endif
1446
  return NULL;
1447
}
1448
 
1449
/* ???  */
1450
 
1451
static bfd_boolean
1452
vms_bfd_relax_section (bfd * abfd ATTRIBUTE_UNUSED,
1453
                       asection *section ATTRIBUTE_UNUSED,
1454
                       struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
1455
                       bfd_boolean *again ATTRIBUTE_UNUSED)
1456
{
1457
#if VMS_DEBUG
1458
  vms_debug (1, "vms_bfd_relax_section (%p, %s, %p, <ret>)\n",
1459
             abfd, section->name, link_info);
1460
#endif
1461
  return TRUE;
1462
}
1463
 
1464
static bfd_boolean
1465
vms_bfd_gc_sections (bfd * abfd ATTRIBUTE_UNUSED,
1466
                     struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
1467
{
1468
#if VMS_DEBUG
1469
  vms_debug (1, "vms_bfd_gc_sections (%p, %p)\n", abfd, link_info);
1470
#endif
1471
  return TRUE;
1472
}
1473
 
1474
static bfd_boolean
1475
vms_bfd_merge_sections (bfd * abfd ATTRIBUTE_UNUSED,
1476
                        struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
1477
{
1478
#if VMS_DEBUG
1479
  vms_debug (1, "vms_bfd_merge_sections (%p, %p)\n", abfd, link_info);
1480
#endif
1481
  return TRUE;
1482
}
1483
 
1484
/* Create a hash table for the linker.  Different backends store
1485
   different information in this table.  */
1486
 
1487
static struct bfd_link_hash_table *
1488
vms_bfd_link_hash_table_create (bfd * abfd ATTRIBUTE_UNUSED)
1489
{
1490
#if VMS_DEBUG
1491
  vms_debug (1, "vms_bfd_link_hash_table_create (%p)\n", abfd);
1492
#endif
1493
  return NULL;
1494
}
1495
 
1496
/* Free a linker hash table.  */
1497
 
1498
static void
1499
vms_bfd_link_hash_table_free (struct bfd_link_hash_table *hash ATTRIBUTE_UNUSED)
1500
{
1501
#if VMS_DEBUG
1502
  vms_debug (1, "vms_bfd_link_hash_table_free (%p)\n", abfd);
1503
#endif
1504
}
1505
 
1506
/* Add symbols from this object file into the hash table.  */
1507
 
1508
static bfd_boolean
1509
vms_bfd_link_add_symbols (bfd * abfd ATTRIBUTE_UNUSED,
1510
                          struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
1511
{
1512
#if VMS_DEBUG
1513
  vms_debug (1, "vms_bfd_link_add_symbols (%p, %p)\n", abfd, link_info);
1514
#endif
1515
  return FALSE;
1516
}
1517
 
1518
/* Do a link based on the link_order structures attached to each
1519
   section of the BFD.  */
1520
 
1521
static bfd_boolean
1522
vms_bfd_final_link (bfd * abfd ATTRIBUTE_UNUSED,
1523
                    struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
1524
{
1525
#if VMS_DEBUG
1526
  vms_debug (1, "vms_bfd_final_link (%p, %p)\n", abfd, link_info);
1527
#endif
1528
  return TRUE;
1529
}
1530
 
1531
/* Should this section be split up into smaller pieces during linking.  */
1532
 
1533
static bfd_boolean
1534
vms_bfd_link_split_section (bfd * abfd ATTRIBUTE_UNUSED,
1535
                            asection *section ATTRIBUTE_UNUSED)
1536
{
1537
#if VMS_DEBUG
1538
  vms_debug (1, "vms_bfd_link_split_section (%p, %s)\n", abfd, section->name);
1539
#endif
1540
  return FALSE;
1541
}
1542
 
1543
/* Part 4.9, dynamic symbols and relocations.  */
1544
 
1545
/* Get the amount of memory required to hold the dynamic symbols.  */
1546
 
1547
static long
1548
vms_get_dynamic_symtab_upper_bound (bfd * abfd ATTRIBUTE_UNUSED)
1549
{
1550
#if VMS_DEBUG
1551
  vms_debug (1, "vms_get_dynamic_symtab_upper_bound (%p)\n", abfd);
1552
#endif
1553
  return 0;
1554
}
1555
 
1556
static bfd_boolean
1557
vms_bfd_print_private_bfd_data (bfd * abfd ATTRIBUTE_UNUSED,
1558
                                void *file ATTRIBUTE_UNUSED)
1559
{
1560
#if VMS_DEBUG
1561
  vms_debug (1, "vms_bfd_print_private_bfd_data (%p)\n", abfd);
1562
#endif
1563
  return FALSE;
1564
}
1565
 
1566
/* Read in the dynamic symbols.  */
1567
 
1568
static long
1569
vms_canonicalize_dynamic_symtab (bfd * abfd ATTRIBUTE_UNUSED,
1570
                                 asymbol **symbols ATTRIBUTE_UNUSED)
1571
{
1572
#if VMS_DEBUG
1573
  vms_debug (1, "vms_canonicalize_dynamic_symtab (%p, <ret>)\n", abfd);
1574
#endif
1575
  return 0L;
1576
}
1577
 
1578
/* Get the amount of memory required to hold the dynamic relocs.  */
1579
 
1580
static long
1581
vms_get_dynamic_reloc_upper_bound (bfd * abfd ATTRIBUTE_UNUSED)
1582
{
1583
#if VMS_DEBUG
1584
  vms_debug (1, "vms_get_dynamic_reloc_upper_bound (%p)\n", abfd);
1585
#endif
1586
  return 0L;
1587
}
1588
 
1589
/* Read in the dynamic relocs.  */
1590
 
1591
static long
1592
vms_canonicalize_dynamic_reloc (bfd * abfd ATTRIBUTE_UNUSED,
1593
                                arelent **arel ATTRIBUTE_UNUSED,
1594
                                asymbol **symbols ATTRIBUTE_UNUSED)
1595
{
1596
#if VMS_DEBUG
1597
  vms_debug (1, "vms_canonicalize_dynamic_reloc (%p)\n", abfd);
1598
#endif
1599
  return 0L;
1600
}
1601
 
1602
const bfd_target vms_alpha_vec =
1603
{
1604
  "vms-alpha",                  /* Name.  */
1605
  bfd_target_evax_flavour,
1606
  BFD_ENDIAN_LITTLE,            /* Data byte order is little.  */
1607
  BFD_ENDIAN_LITTLE,            /* Header byte order is little.  */
1608
 
1609
  (HAS_RELOC | HAS_SYMS
1610
   | WP_TEXT | D_PAGED),        /* Object flags.  */
1611
  (SEC_ALLOC | SEC_LOAD | SEC_RELOC
1612
   | SEC_READONLY | SEC_CODE | SEC_DATA
1613
   | SEC_HAS_CONTENTS | SEC_IN_MEMORY),         /* Sect flags.  */
1614
  0,                             /* Symbol_leading_char.  */
1615
  ' ',                          /* AR_pad_char.  */
1616
  15,                           /* AR_max_namelen.  */
1617
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1618
  bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1619
  bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1620
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1621
  bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1622
  bfd_getl16, bfd_getl_signed_16, bfd_putl16,
1623
 
1624
  {_bfd_dummy_target, vms_object_p,             /* bfd_check_format.  */
1625
   vms_archive_p, _bfd_dummy_target},
1626
  {bfd_false, vms_mkobject,                     /* bfd_set_format.  */
1627
   _bfd_generic_mkarchive, bfd_false},
1628
  {bfd_false, vms_write_object_contents,        /* bfd_write_contents.  */
1629
   _bfd_write_archive_contents, bfd_false},
1630
 
1631
  BFD_JUMP_TABLE_GENERIC (vms),
1632
  BFD_JUMP_TABLE_COPY (vms),
1633
  BFD_JUMP_TABLE_CORE (vms),
1634
  BFD_JUMP_TABLE_ARCHIVE (vms),
1635
  BFD_JUMP_TABLE_SYMBOLS (vms),
1636
  BFD_JUMP_TABLE_RELOCS (vms),
1637
  BFD_JUMP_TABLE_WRITE (vms),
1638
  BFD_JUMP_TABLE_LINK (vms),
1639
  BFD_JUMP_TABLE_DYNAMIC (vms),
1640
 
1641
  NULL,
1642
 
1643
  NULL
1644
};
1645
 
1646
const bfd_target vms_vax_vec =
1647
{
1648
  "vms-vax",                    /* Name.  */
1649
  bfd_target_ovax_flavour,
1650
  BFD_ENDIAN_LITTLE,            /* Data byte order is little.  */
1651
  BFD_ENDIAN_LITTLE,            /* Header byte order is little.  */
1652
 
1653
  (HAS_RELOC | HAS_SYMS         /* Object flags.  */
1654
   | WP_TEXT | D_PAGED
1655
   | HAS_LINENO | HAS_DEBUG | HAS_LOCALS),
1656
 
1657
  (SEC_ALLOC | SEC_LOAD | SEC_RELOC
1658
   | SEC_READONLY | SEC_CODE | SEC_DATA
1659
   | SEC_HAS_CONTENTS | SEC_IN_MEMORY),         /* Sect flags.  */
1660
  0,                             /* Symbol_leading_char.  */
1661
  ' ',                          /* AR_pad_char.  */
1662
  15,                           /* AR_max_namelen.  */
1663
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1664
  bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1665
  bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data.  */
1666
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
1667
  bfd_getl32, bfd_getl_signed_32, bfd_putl32,
1668
  bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers.  */
1669
 
1670
  {_bfd_dummy_target, vms_object_p,             /* bfd_check_format.  */
1671
   vms_archive_p, _bfd_dummy_target},
1672
  {bfd_false, vms_mkobject,                     /* bfd_set_format.  */
1673
   _bfd_generic_mkarchive, bfd_false},
1674
  {bfd_false, vms_write_object_contents,        /* bfd_write_contents.  */
1675
   _bfd_write_archive_contents, bfd_false},
1676
 
1677
  BFD_JUMP_TABLE_GENERIC (vms),
1678
  BFD_JUMP_TABLE_COPY (vms),
1679
  BFD_JUMP_TABLE_CORE (vms),
1680
  BFD_JUMP_TABLE_ARCHIVE (vms),
1681
  BFD_JUMP_TABLE_SYMBOLS (vms),
1682
  BFD_JUMP_TABLE_RELOCS (vms),
1683
  BFD_JUMP_TABLE_WRITE (vms),
1684
  BFD_JUMP_TABLE_LINK (vms),
1685
  BFD_JUMP_TABLE_DYNAMIC (vms),
1686
 
1687
  NULL,
1688
 
1689
  NULL
1690
};

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