aboutsummaryrefslogtreecommitdiff
path: root/bfd/vms-gsd.c
blob: 773823c0baad7a84a0bd184be4c0d9f88453c30c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
/* vms-gsd.c -- BFD back-end for VAX (openVMS/VAX) and
   EVAX (openVMS/Alpha) files.
   Copyright 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.

   go and read the openVMS linker manual (esp. appendix B)
   if you don't know what's going on here :-)

   Written by Klaus K"ampf (kkaempf@rmi.de)

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 <ctype.h>

#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "libbfd.h"

#include "vms.h"

/*-----------------------------------------------------------------------------*/

/* typical sections for vax object files  */

#define VAX_CODE_NAME		"$CODE"
#define VAX_DATA_NAME		"$DATA"
#define VAX_ADDRESS_DATA_NAME	"$ADDRESS_DATA"

/* typical sections for evax object files  */

#define EVAX_ABS_NAME		"$ABS$"
#define EVAX_CODE_NAME		"$CODE$"
#define EVAX_LINK_NAME		"$LINK$"
#define EVAX_DATA_NAME		"$DATA$"
#define EVAX_BSS_NAME		"$BSS$"
#define EVAX_READONLYADDR_NAME	"$READONLY_ADDR$"
#define EVAX_READONLY_NAME	"$READONLY$"
#define EVAX_LITERAL_NAME	"$LITERAL$"
#define EVAX_COMMON_NAME	"$COMMON$"
#define EVAX_LOCAL_NAME		"$LOCAL$"

struct sec_flags_struct {
  char *name;			/* name of section */
  int vflags_always;
  flagword flags_always;	/* flags we set always */
  int vflags_hassize;
  flagword flags_hassize;	/* flags we set if the section has a size > 0 */
};

/* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible  */

static struct sec_flags_struct vax_section_flags[] = {
  { VAX_CODE_NAME,
	(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
	(SEC_CODE),
	(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
	(SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { VAX_DATA_NAME,
	(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
	(SEC_DATA),
	(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { VAX_ADDRESS_DATA_NAME,
	(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
	(SEC_DATA|SEC_READONLY),
	(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  { NULL,
	(GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
	(SEC_DATA),
	(GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
};

/* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible  */

static struct sec_flags_struct evax_section_flags[] = {
  { EVAX_ABS_NAME,
	(EGPS_S_V_SHR),
	(SEC_DATA),
	(EGPS_S_V_SHR),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { EVAX_CODE_NAME,
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
	(SEC_CODE),
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
	(SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { EVAX_LITERAL_NAME,
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
	(SEC_DATA|SEC_READONLY),
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  { EVAX_LINK_NAME,
	(EGPS_S_V_REL|EGPS_S_V_RD),
	(SEC_DATA|SEC_READONLY),
	(EGPS_S_V_REL|EGPS_S_V_RD),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  { EVAX_DATA_NAME,
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
	(SEC_DATA),
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { EVAX_BSS_NAME,
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
	(SEC_NO_FLAGS),
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
	(SEC_IN_MEMORY|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { EVAX_READONLYADDR_NAME,
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
	(SEC_DATA|SEC_READONLY),
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  { EVAX_READONLY_NAME,
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
	(SEC_DATA|SEC_READONLY),
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  { EVAX_LOCAL_NAME,
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
	(SEC_DATA),
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { NULL,
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
	(SEC_DATA),
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
};

/* Retrieve bfd section flags by name and size  */

static flagword
vms_secflag_by_name (abfd, section_flags, name, size)
     bfd *abfd;
     struct sec_flags_struct *section_flags;
     char *name;
     int size;
{
  int i = 0;

  while (section_flags[i].name != NULL)
    {
      if ((PRIV(is_vax)?
	    strcasecmp (name, section_flags[i].name):
	    strcmp (name, section_flags[i].name)) == 0)
	{
	  if (size > 0)
	    return section_flags[i].flags_hassize;
	  else
	    return section_flags[i].flags_always;
	}
      i++;
    }
  if (size > 0)
    return section_flags[i].flags_hassize;
  return section_flags[i].flags_always;
}

/* Retrieve vms section flags by name and size  */

static flagword
vms_esecflag_by_name (section_flags, name, size)
     struct sec_flags_struct *section_flags;
     char *name;
     int size;
{
  int i = 0;

  while (section_flags[i].name != NULL)
    {
      if (strcmp (name, section_flags[i].name) == 0)
	{
	  if (size > 0)
	    return section_flags[i].vflags_hassize;
	  else
	    return section_flags[i].vflags_always;
	}
      i++;
    }
  if (size > 0)
    return section_flags[i].vflags_hassize;
  return section_flags[i].vflags_always;
}

/*-----------------------------------------------------------------------------*/
#if VMS_DEBUG
/* debug */

struct flagdescstruct { char *name; flagword value; };

/* Convert flag to printable string  */

static char *
flag2str(flagdesc, flags)
     struct flagdescstruct *flagdesc;
     flagword flags;
{

  static char res[64];
  int next = 0;

  res[0] = 0;
  while (flagdesc->name != NULL)
    {
      if ((flags & flagdesc->value) != 0)
	{
	  if (next)
	    strcat(res, ",");
	  else
	    next = 1;
	  strcat (res, flagdesc->name);
	}
      flagdesc++;
    }
  return res;
}
#endif

/*-----------------------------------------------------------------------------*/
/* input routines */

/* Process GSD/EGSD record
   return 0 on success, -1 on error  */

int
_bfd_vms_slurp_gsd (abfd, objtype)
     bfd *abfd;
     int objtype;
{
#if VMS_DEBUG
  static struct flagdescstruct gpsflagdesc[] =
  {
    { "PIC", 0x0001 },
    { "LIB", 0x0002 },
    { "OVR", 0x0004 },
    { "REL", 0x0008 },
    { "GBL", 0x0010 },
    { "SHR", 0x0020 },
    { "EXE", 0x0040 },
    { "RD",  0x0080 },
    { "WRT", 0x0100 },
    { "VEC", 0x0200 },
    { "NOMOD", 0x0400 },
    { "COM", 0x0800 },
    { NULL, 0 }
  };

  static struct flagdescstruct gsyflagdesc[] =
  {
    { "WEAK", 0x0001 },
    { "DEF",  0x0002 },
    { "UNI",  0x0004 },
    { "REL",  0x0008 },
    { "COMM", 0x0010 },
    { "VECEP", 0x0020 },
    { "NORM", 0x0040 },
    { NULL, 0 }
  };
#endif

  int gsd_type, gsd_size;
  asection *section;
  unsigned char *vms_rec;
  flagword new_flags, old_flags;
  char *name;
  asymbol *symbol;
  vms_symbol_entry *entry;
  unsigned long base_addr;
  unsigned long align_addr;
  static unsigned int psect_idx = 0;

#if VMS_DEBUG
  vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype);
#endif

  switch (objtype)
    {
      case EOBJ_S_C_EGSD:
 	PRIV(vms_rec) += 8;	/* skip type, size, l_temp */
	PRIV(rec_size) -= 8;
	break;
      case OBJ_S_C_GSD:
	PRIV(vms_rec) += 1;
	PRIV(rec_size) -= 1;
	break;
      default:
	return -1;
    }

  /* calculate base address for each section  */
  base_addr = 0L;

  abfd->symcount = 0;

  while (PRIV(rec_size) > 0)
    {
      vms_rec = PRIV(vms_rec);

      if (objtype == OBJ_S_C_GSD)
	{
	  gsd_type = *vms_rec;
	}
      else
	{
	  _bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size);
	  gsd_type += EVAX_OFFSET;
	}

#if VMS_DEBUG
  vms_debug (3, "gsd_type %d\n", gsd_type);
#endif

      switch (gsd_type)
	{
	  case GSD_S_C_PSC:
	    {
	      /*
	       * program section definition
	       */

	      asection *old_section = 0;

#if VMS_DEBUG
  vms_debug (4, "GSD_S_C_PSC\n");
#endif
	      /* If this section isn't a bfd section.  */

	      if (PRIV(is_vax) && (psect_idx < (abfd->section_count-1)))
		{
		  /* check for temporary section from TIR record.  */

		  if (psect_idx < PRIV(section_count))
		    old_section = PRIV(sections)[psect_idx];
		  else
		    old_section = 0;
		}

	      name = _bfd_vms_save_counted_string (vms_rec + 8);
	      section = bfd_make_section (abfd, name);
	      if (!section)
		{
		  (*_bfd_error_handler) (_("bfd_make_section (%s) failed"),
					 name);
		  return -1;
		}
	      old_flags = bfd_getl16 (vms_rec + 2);
	      section->_raw_size = bfd_getl32(vms_rec + 4);	/* allocation */
	      new_flags = vms_secflag_by_name (abfd, vax_section_flags, name, section->_raw_size);
	      if (old_flags & EGPS_S_V_REL)
		new_flags |= SEC_RELOC;
	      if (old_flags & GPS_S_M_OVR)
		new_flags |= SEC_IS_COMMON;
	      if (!bfd_set_section_flags (abfd, section, new_flags))
		{
		  (*_bfd_error_handler)
		    (_("bfd_set_section_flags (%s, %x) failed"),
		     name, new_flags);
		  return -1;
		}
	      section->alignment_power = vms_rec[1];
	      align_addr = (1 << section->alignment_power);
	      if ((base_addr % align_addr) != 0)
		base_addr += (align_addr - (base_addr % align_addr));
	      section->vma = (bfd_vma)base_addr;
	      base_addr += section->_raw_size;

	      /* global section is common symbol  */

	      if (old_flags & GPS_S_M_GBL)
		{
		  entry = _bfd_vms_enter_symbol (abfd, name);
		  if (entry == (vms_symbol_entry *)NULL)
		    {
		      bfd_set_error (bfd_error_no_memory);
		      return -1;
		    }
		  symbol = entry->symbol;

		  symbol->value = 0;
		  symbol->section = section;
		  symbol->flags = (BSF_GLOBAL|BSF_SECTION_SYM|BSF_OLD_COMMON);
		}

	      /* copy saved contents if old_section set  */

	      if (old_section != 0)
		{
		  section->contents = old_section->contents;
		  if (section->_raw_size < old_section->_raw_size)
		    {
		      (*_bfd_error_handler)
			(_("Size mismatch section %s=%lx, %s=%lx"),
			 old_section->name,
			 (unsigned long) old_section->_raw_size,
			 section->name,
			 (unsigned long) section->_raw_size);
		      return -1;
		    }
		  else if (section->_raw_size > old_section->_raw_size)
		    {
		      section->contents = ((unsigned char *)
				    bfd_realloc (old_section->contents, section->_raw_size));
		      if (section->contents == NULL)
			{
			  bfd_set_error (bfd_error_no_memory);
			  return -1;
		        }
		    }
		}
	      else
		{
		  section->contents = ((unsigned char *)
					bfd_malloc (section->_raw_size));
		  if (section->contents == NULL)
		    {
		      bfd_set_error (bfd_error_no_memory);
		      return -1;
		    }
		  memset (section->contents, 0, (size_t)section->_raw_size);
		}
	      section->_cooked_size = section->_raw_size;
#if VMS_DEBUG
	      vms_debug (4, "gsd psc %d (%s, flags %04x=%s) ",
			 section->index, name, old_flags, flag2str (gpsflagdesc, old_flags));
	      vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n",
			 section->_raw_size, section->vma, section->contents);
#endif

	      gsd_size = vms_rec[8] + 9;

	      psect_idx++;
	    }
	  break;

	  case GSD_S_C_EPM:
	  case GSD_S_C_EPMW:
#if VMS_DEBUG
		vms_debug(4, "gsd epm\n");
#endif
	  /*FALLTHRU*/
	  case GSD_S_C_SYM:
	  case GSD_S_C_SYMW:
	    {
	      int name_offset, value_offset;

	      /*
	       * symbol specification (definition or reference)
	       */

#if VMS_DEBUG
  vms_debug (4, "GSD_S_C_SYM(W)\n");
#endif
	      old_flags = bfd_getl16 (vms_rec + 2);
	      new_flags = BSF_NO_FLAGS;

	      if (old_flags & GSY_S_M_WEAK)
		new_flags |= BSF_WEAK;

	      switch (gsd_type)
		{
		  case GSD_S_C_EPM:
		    name_offset = 11;
		    value_offset = 5;
		    new_flags |= BSF_FUNCTION;
		    break;
		  case GSD_S_C_EPMW:
		    name_offset = 12;
		    value_offset = 6;
		    new_flags |= BSF_FUNCTION;
		    break;
		  case GSD_S_C_SYM:
		    if (old_flags & GSY_S_M_DEF)	/* symbol definition */
		      name_offset = 9;
		    else
		      name_offset = 4;
		    value_offset = 5;
		    break;
		  case GSD_S_C_SYMW:
		    if (old_flags & GSY_S_M_DEF)	/* symbol definition */
		      name_offset = 10;
		    else
		      name_offset = 5;
		    value_offset = 6;
		    break;
		}

	      /* save symbol in vms_symbol_table */

	      entry = _bfd_vms_enter_symbol (abfd,
			_bfd_vms_save_counted_string (vms_rec + name_offset));
	      if (entry == (vms_symbol_entry *)NULL)
		{
		  bfd_set_error (bfd_error_no_memory);
		  return -1;
		}
	      symbol = entry->symbol;

	      if (old_flags & GSY_S_M_DEF)	/* symbol definition */
		{
		  int psect;

		  symbol->value = bfd_getl32 (vms_rec+value_offset);
		  if ((gsd_type == GSD_S_C_SYMW)
		      || (gsd_type == GSD_S_C_EPMW))
		    psect = bfd_getl16 (vms_rec + value_offset - 2);
		  else
		    psect = vms_rec[value_offset-1];

		  symbol->section = (asection *)psect;
#if VMS_DEBUG
		  vms_debug(4, "gsd sym def #%d (%s, %d [%p], %04x=%s)\n", abfd->symcount,
				symbol->name, (int)symbol->section, symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
#endif
		}
	      else	/* symbol reference */
		{
		  symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
#if VMS_DEBUG
		  vms_debug (4, "gsd sym ref #%d (%s, %s [%p], %04x=%s)\n", abfd->symcount,
				symbol->name, symbol->section->name, symbol->section, old_flags, flag2str (gsyflagdesc, old_flags));
#endif
		}

	      gsd_size = vms_rec[name_offset] + name_offset + 1;
	      symbol->flags = new_flags;
	    }

	  break;

	  case GSD_S_C_PRO:
	  case GSD_S_C_PROW:
#if VMS_DEBUG
		vms_debug(4, "gsd pro\n");
#endif
	  break;
	  case GSD_S_C_IDC:
#if VMS_DEBUG
		vms_debug(4, "gsd idc\n");
#endif
	  break;
	  case GSD_S_C_ENV:
#if VMS_DEBUG
		vms_debug(4, "gsd env\n");
#endif
	  break;
	  case GSD_S_C_LSY:
#if VMS_DEBUG
		vms_debug(4, "gsd lsy\n");
#endif
	  break;
	  case GSD_S_C_LEPM:
#if VMS_DEBUG
		vms_debug(4, "gsd lepm\n");
#endif
	  break;
	  case GSD_S_C_LPRO:
#if VMS_DEBUG
		vms_debug(4, "gsd lpro\n");
#endif
	  break;
	  case GSD_S_C_SPSC:
#if VMS_DEBUG
		vms_debug(4, "gsd spsc\n");
#endif
	  break;
	  case GSD_S_C_SYMV:
#if VMS_DEBUG
		vms_debug(4, "gsd symv\n");
#endif
	  break;
	  case GSD_S_C_EPMV:
#if VMS_DEBUG
		vms_debug(4, "gsd epmv\n");
#endif
	  break;
	  case GSD_S_C_PROV:
#if VMS_DEBUG
		vms_debug(4, "gsd prov\n");
#endif
	  break;

	case EGSD_S_C_PSC + EVAX_OFFSET:
	  {
	    /* program section definition  */

	    name = _bfd_vms_save_counted_string (vms_rec+12);
	    section = bfd_make_section (abfd, name);
	    if (!section)
	      return -1;
	    old_flags = bfd_getl16 (vms_rec + 6);
	    section->_raw_size = bfd_getl32 (vms_rec + 8);	/* allocation */
	    new_flags = vms_secflag_by_name (abfd, evax_section_flags, name, (int) section->_raw_size);
	    if (old_flags & EGPS_S_V_REL)
	      new_flags |= SEC_RELOC;
	    if (!bfd_set_section_flags (abfd, section, new_flags))
	      return -1;
	    section->alignment_power = vms_rec[4];
	    align_addr = (1 << section->alignment_power);
	    if ((base_addr % align_addr) != 0)
	      base_addr += (align_addr - (base_addr % align_addr));
	    section->vma = (bfd_vma)base_addr;
	    base_addr += section->_raw_size;
	    section->contents = ((unsigned char *)
				 bfd_malloc (section->_raw_size));
	    if (section->contents == NULL)
	      return -1;
	    memset (section->contents, 0, (size_t) section->_raw_size);
	    section->_cooked_size = section->_raw_size;
#if VMS_DEBUG
	    vms_debug(4, "egsd psc %d (%s, flags %04x=%s) ",
		       section->index, name, old_flags, flag2str(gpsflagdesc, old_flags));
	    vms_debug(4, "%d bytes at 0x%08lx (mem %p)\n",
		       section->_raw_size, section->vma, section->contents);
#endif
	  }
	  break;

	case EGSD_S_C_SYM + EVAX_OFFSET:
	  {
	    /* symbol specification (definition or reference)  */

	    symbol = _bfd_vms_make_empty_symbol (abfd);
	    if (symbol == 0)
	      return -1;

	    old_flags = bfd_getl16 (vms_rec + 6);
	    new_flags = BSF_NO_FLAGS;

	    if (old_flags & EGSY_S_V_WEAK)
	      new_flags |= BSF_WEAK;

	    if (vms_rec[6] & EGSY_S_V_DEF)	/* symbol definition */
	      {
		symbol->name =
		  _bfd_vms_save_counted_string (vms_rec+32);
		if (old_flags & EGSY_S_V_NORM)
		  {         /* proc def */
		    new_flags |= BSF_FUNCTION;
		  }
		symbol->value = bfd_getl64 (vms_rec+8);
		symbol->section = (asection *) ((unsigned long) bfd_getl32 (vms_rec+28));
#if VMS_DEBUG
		vms_debug(4, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount,
			   symbol->name, (int)symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
#endif
	      }
	    else	/* symbol reference */
	      {
	        symbol->name =
		  _bfd_vms_save_counted_string (vms_rec+8);
#if VMS_DEBUG
		vms_debug(4, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount,
			   symbol->name, old_flags, flag2str(gsyflagdesc, old_flags));
#endif
	        symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
	      }

	    symbol->flags = new_flags;

	    /* save symbol in vms_symbol_table  */

	    entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV(vms_symbol_table), symbol->name, true, false);
	    if (entry == (vms_symbol_entry *)NULL)
	      {
		bfd_set_error (bfd_error_no_memory);
		return -1;
	      }
	    if (entry->symbol != (asymbol *)NULL)
	      {					/* FIXME ?, DEC C generates this */
#if VMS_DEBUG
		vms_debug(4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name);
#endif
	      }
	    else
	      {
		entry->symbol = symbol;
		PRIV(gsd_sym_count)++;
		abfd->symcount++;
	      }
	  }
	  break;

	case EGSD_S_C_IDC + EVAX_OFFSET:
	  break;

	default:
	  (*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type);
	  bfd_set_error (bfd_error_bad_value);
	  return -1;

	} /* switch */

      PRIV(rec_size) -= gsd_size;
      PRIV(vms_rec) += gsd_size;

    } /* while (recsize > 0) */

  if (abfd->symcount > 0)
    abfd->flags |= HAS_SYMS;

  return 0;
}

/*-----------------------------------------------------------------------------*/
/* output routines */

/* Write section and symbol directory of bfd abfd  */

int
_bfd_vms_write_gsd (abfd, objtype)
     bfd *abfd;
     int objtype ATTRIBUTE_UNUSED;
{
  asection *section;
  asymbol *symbol;
  unsigned int symnum;
  int last_index = -1;
  char dummy_name[10];
  char *sname;
  flagword new_flags, old_flags;

#if VMS_DEBUG
  vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype);
#endif

  /* output sections  */

  section = abfd->sections;
#if VMS_DEBUG
  vms_debug (3, "%d sections found\n", abfd->section_count);
#endif

  /* egsd is quadword aligned  */

  _bfd_vms_output_alignment (abfd, 8);

  _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
  _bfd_vms_output_long (abfd, 0);
  _bfd_vms_output_push (abfd);		/* prepare output for subrecords */

  while (section != 0)
    {
#if VMS_DEBUG
  vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->_raw_size);
#endif

	/* 13 bytes egsd, max 31 chars name -> should be 44 bytes */
      if (_bfd_vms_output_check (abfd, 64) < 0)
	{
	  _bfd_vms_output_pop (abfd);
	  _bfd_vms_output_end (abfd);
	  _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
	  _bfd_vms_output_long (abfd, 0);
	  _bfd_vms_output_push (abfd);		/* prepare output for subrecords */
	}

	/* Create dummy sections to keep consecutive indices */

      while (section->index - last_index > 1)
	{
#if VMS_DEBUG
	  vms_debug (3, "index %d, last %d\n", section->index, last_index);
#endif
	  _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
	  _bfd_vms_output_short (abfd, 0);
	  _bfd_vms_output_short (abfd, 0);
	  _bfd_vms_output_long (abfd, 0);
	  sprintf (dummy_name, ".DUMMY%02d", last_index);
	  _bfd_vms_output_counted (abfd, dummy_name);
	  _bfd_vms_output_flush (abfd);
	  last_index++;
	}

      /* Don't know if this is neccesary for the linker but for now it keeps
	 vms_slurp_gsd happy  */

      sname = (char *)section->name;
      if (*sname == '.')
	{
	  sname++;
	  if ((*sname == 't') && (strcmp (sname, "text") == 0))
	    sname = PRIV(is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME;
	  else if ((*sname == 'd') && (strcmp (sname, "data") == 0))
	    sname = PRIV(is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME;
	  else if ((*sname == 'b') && (strcmp (sname, "bss") == 0))
	    sname = EVAX_BSS_NAME;
	  else if ((*sname == 'l') && (strcmp (sname, "link") == 0))
	    sname = EVAX_LINK_NAME;
	  else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0))
	    sname = EVAX_READONLY_NAME;
	  else if ((*sname == 'l') && (strcmp (sname, "literal") == 0))
	    sname = EVAX_LITERAL_NAME;
	  else if ((*sname == 'c') && (strcmp (sname, "comm") == 0))
	    sname = EVAX_COMMON_NAME;
	  else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0))
	    sname = EVAX_LOCAL_NAME;
	}
      else
	sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ);

      _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
      _bfd_vms_output_short (abfd, section->alignment_power & 0xff);
      if (bfd_is_com_section (section))
	{
	  new_flags = (EGPS_S_V_OVR|EGPS_S_V_REL|EGPS_S_V_GBL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD|EGPS_S_V_COM);
	}
      else
	{
	  new_flags = vms_esecflag_by_name (evax_section_flags, sname, section->_raw_size);
	}
      _bfd_vms_output_short (abfd, new_flags);
      _bfd_vms_output_long (abfd, section->_raw_size);
      _bfd_vms_output_counted (abfd, sname);
      _bfd_vms_output_flush (abfd);

      last_index = section->index;
      section = section->next;
    }

  /* output symbols  */

#if VMS_DEBUG
  vms_debug (3, "%d symbols found\n", abfd->symcount);
#endif

  bfd_set_start_address (abfd, (bfd_vma)-1);

  for (symnum = 0; symnum < abfd->symcount; symnum++)
    {

      symbol = abfd->outsymbols[symnum];
      if (*(symbol->name) == '_')
	{
	  if (strcmp (symbol->name, "__main") == 0)
	    bfd_set_start_address (abfd, (bfd_vma)symbol->value);
	}
      old_flags = symbol->flags;

      if (old_flags & BSF_FILE)
	continue;

      if (((old_flags & (BSF_GLOBAL|BSF_WEAK)) == 0)	/* not xdef */
	  && (!bfd_is_und_section (symbol->section)))	/* and not xref */
	continue;					/* dont output */

      /* 13 bytes egsd, max 64 chars name -> should be 77 bytes  */

      if (_bfd_vms_output_check (abfd, 80) < 0)
	{
	  _bfd_vms_output_pop (abfd);
	  _bfd_vms_output_end (abfd);
	  _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
	  _bfd_vms_output_long (abfd, 0);
	  _bfd_vms_output_push (abfd);		/* prepare output for subrecords */
	}

      _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1);

      _bfd_vms_output_short (abfd, 0);			/* data type, alignment */

      new_flags = 0;

      if (old_flags & BSF_WEAK)
	new_flags |= EGSY_S_V_WEAK;
      if (bfd_is_com_section (symbol->section))		/* .comm  */
	new_flags |= (EGSY_S_V_WEAK|EGSY_S_V_COMM);

      if (old_flags & BSF_FUNCTION)
	{
	  new_flags |= EGSY_S_V_NORM;
	  new_flags |= EGSY_S_V_REL;
	}
      if (old_flags & (BSF_GLOBAL|BSF_WEAK))
	{
	  new_flags |= EGSY_S_V_DEF;
	  if (!bfd_is_abs_section (symbol->section))
	    new_flags |= EGSY_S_V_REL;
	}
      _bfd_vms_output_short (abfd, new_flags);

      if (old_flags & (BSF_GLOBAL|BSF_WEAK))		/* symbol definition */
	{
	  if (old_flags & BSF_FUNCTION)
	    {
	      _bfd_vms_output_quad (abfd, symbol->value);
	      _bfd_vms_output_quad (abfd,
				     ((asymbol *) (symbol->udata.p))->value);
	      _bfd_vms_output_long (abfd,
				     (((asymbol *) (symbol->udata.p))
				      ->section->index));
	      _bfd_vms_output_long (abfd, symbol->section->index);
	    }
	  else
	    {
	      _bfd_vms_output_quad (abfd, symbol->value);	/* L_VALUE */
	      _bfd_vms_output_quad (abfd, 0);			/* L_CODE_ADDRESS */
	      _bfd_vms_output_long (abfd, 0);			/* L_CA_PSINDX */
	      _bfd_vms_output_long (abfd, symbol->section->index);/* L_PSINDX */
	    }
	}
      _bfd_vms_output_counted (abfd, _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ));

      _bfd_vms_output_flush (abfd);

    }

  _bfd_vms_output_alignment (abfd, 8);
  _bfd_vms_output_pop (abfd);
  _bfd_vms_output_end (abfd);

  return 0;
}