summaryrefslogtreecommitdiff
path: root/bfd/versados.c
blob: 2d49458566a1568bc1971ce05bfd47713026ffce (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
/* BFD back-end for VERSAdos-E objects.
   Copyright (C) 1995-2014 Free Software Foundation, Inc.
   Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>.

   Versados is a Motorola trademark.

   This file is part of BFD, the Binary File Descriptor library.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 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., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

/*
   SUBSECTION
   VERSAdos-E relocatable object file format

   DESCRIPTION

   This module supports reading of VERSAdos relocatable
   object files.

   A VERSAdos file looks like contains

   o Identification Record
   o External Symbol Definition Record
   o Object Text Record
   o End Record.  */

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


#define VHEADER '1'
#define VESTDEF '2'
#define VOTR '3'
#define VEND '4'

#define ES_BASE 17		/* First symbol has esdid 17.  */

/* Per file target dependent information.  */

/* One for each section.  */
struct esdid
{
  asection *section;		/* Ptr to bfd version.  */
  unsigned char *contents;	/* Used to build image.  */
  int pc;
  int relocs;			/* Reloc count, valid end of pass 1.  */
  int donerel;			/* Have relocs been translated.  */
};

typedef struct versados_data_struct
{
  int es_done;			/* Count of symbol index, starts at ES_BASE.  */
  asymbol *symbols;		/* Pointer to local symbols.  */
  char *strings;		/* Strings of all the above.  */
  int stringlen;		/* Len of string table (valid end of pass1).  */
  int nsecsyms;			/* Number of sections.  */

  int ndefs;			/* Number of exported symbols (they dont get esdids).  */
  int nrefs;			/* Number of imported symbols  (valid end of pass1).  */

  int ref_idx;			/* Current processed value of the above.  */
  int def_idx;

  int pass_2_done;

  struct esdid e[16];		/* Per section info.  */
  int alert;			/* To see if we're trampling.  */
  asymbol *rest[256 - 16];	/* Per symbol info.  */
}
tdata_type;

#define VDATA(abfd)       (abfd->tdata.versados_data)
#define EDATA(abfd, n)    (abfd->tdata.versados_data->e[n])
#define RDATA(abfd, n)    (abfd->tdata.versados_data->rest[n])

struct ext_otr
{
  unsigned char size;
  char type;
  unsigned char map[4];
  unsigned char esdid;
  unsigned char data[200];
};

struct ext_vheader
{
  unsigned char size;
  char type;			/* Record type.  */
  char name[10];		/* Module name.  */
  char rev;			/* Module rev number.  */
  char lang;
  char vol[4];
  char user[2];
  char cat[8];
  char fname[8];
  char ext[2];
  char time[3];
  char date[3];
  char rest[211];
};

struct ext_esd
{
  unsigned char size;
  char type;
  unsigned char esd_entries[1];
};

#define ESD_ABS 	  0
#define ESD_COMMON 	  1
#define ESD_STD_REL_SEC   2
#define ESD_SHRT_REL_SEC  3
#define ESD_XDEF_IN_SEC   4
#define ESD_XDEF_IN_ABS   5
#define ESD_XREF_SEC	  6
#define ESD_XREF_SYM      7

union ext_any
{
  unsigned char size;
  struct ext_vheader header;
  struct ext_esd esd;
  struct ext_otr otr;
};

/* Initialize by filling in the hex conversion array.  */

/* Set up the tdata information.  */

static bfd_boolean
versados_mkobject (bfd *abfd)
{
  if (abfd->tdata.versados_data == NULL)
    {
      bfd_size_type amt = sizeof (tdata_type);
      tdata_type *tdata = bfd_alloc (abfd, amt);

      if (tdata == NULL)
	return FALSE;
      abfd->tdata.versados_data = tdata;
      tdata->symbols = NULL;
      VDATA (abfd)->alert = 0x12345678;
    }

  bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
  return TRUE;
}

/* Report a problem in an S record file.  FIXME: This probably should
   not call fprintf, but we really do need some mechanism for printing
   error messages.  */

static asymbol *
versados_new_symbol (bfd *abfd,
		     int snum,
		     const char *name,
		     bfd_vma val,
		     asection *sec)
{
  asymbol *n = VDATA (abfd)->symbols + snum;
  n->name = name;
  n->value = val;
  n->section = sec;
  n->the_bfd = abfd;
  n->flags = 0;
  return n;
}

static int
get_record (bfd *abfd, union ext_any *ptr)
{
  if (bfd_bread (&ptr->size, (bfd_size_type) 1, abfd) != 1
      || (bfd_bread ((char *) ptr + 1, (bfd_size_type) ptr->size, abfd)
	  != ptr->size))
    return 0;
  return 1;
}

static int
get_4 (unsigned char **pp)
{
  unsigned char *p = *pp;

  *pp += 4;
  return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3] << 0);
}

static void
get_10 (unsigned char **pp, char *name)
{
  char *p = (char *) *pp;
  int len = 10;

  *pp += len;
  while (*p != ' ' && len)
    {
      *name++ = *p++;
      len--;
    }
  *name = 0;
}

static char *
new_symbol_string (bfd *abfd, const char *name)
{
  char *n = VDATA (abfd)->strings;

  strcpy (VDATA (abfd)->strings, name);
  VDATA (abfd)->strings += strlen (VDATA (abfd)->strings) + 1;
  return n;
}

static void
process_esd (bfd *abfd, struct ext_esd *esd, int pass)
{
  /* Read through the ext def for the est entries.  */
  int togo = esd->size - 2;
  bfd_vma size;
  bfd_vma start;
  asection *sec;
  char name[11];
  unsigned char *ptr = esd->esd_entries;
  unsigned char *end = ptr + togo;

  while (ptr < end)
    {
      int scn = *ptr & 0xf;
      int typ = (*ptr >> 4) & 0xf;

      /* Declare this section.  */
      sprintf (name, "%d", scn);
      sec = bfd_make_section_old_way (abfd, strdup (name));
      sec->target_index = scn;
      EDATA (abfd, scn).section = sec;
      ptr++;

      switch (typ)
	{
	default:
	  abort ();
	case ESD_XREF_SEC:
	case ESD_XREF_SYM:
	  {
	    int snum = VDATA (abfd)->ref_idx++;
	    get_10 (&ptr, name);
	    if (pass == 1)
	      VDATA (abfd)->stringlen += strlen (name) + 1;
	    else
	      {
		int esidx;
		asymbol *s;
		char *n = new_symbol_string (abfd, name);

		s = versados_new_symbol (abfd, snum, n, (bfd_vma) 0,
					 bfd_und_section_ptr);
		esidx = VDATA (abfd)->es_done++;
		RDATA (abfd, esidx - ES_BASE) = s;
	      }
	  }
	  break;

	case ESD_ABS:
	  size = get_4 (&ptr);
	  (void) size;
	  start = get_4 (&ptr);
	  (void) start;
	  break;
	case ESD_STD_REL_SEC:
	case ESD_SHRT_REL_SEC:
	  sec->size = get_4 (&ptr);
	  sec->flags |= SEC_ALLOC;
	  break;
	case ESD_XDEF_IN_ABS:
	  sec = bfd_abs_section_ptr;
	case ESD_XDEF_IN_SEC:
	  {
	    int snum = VDATA (abfd)->def_idx++;
	    bfd_vma val;

	    get_10 (&ptr, name);
	    val = get_4 (&ptr);
	    if (pass == 1)
	      /* Just remember the symbol.  */
	      VDATA (abfd)->stringlen += strlen (name) + 1;
	    else
	      {
		asymbol *s;
		char *n = new_symbol_string (abfd, name);

		s = versados_new_symbol (abfd, snum + VDATA (abfd)->nrefs, n,
					 val, sec);
		s->flags |= BSF_GLOBAL;
	      }
	  }
	  break;
	}
    }
}

#define R_RELWORD     1
#define R_RELLONG     2
#define R_RELWORD_NEG 3
#define R_RELLONG_NEG 4

reloc_howto_type versados_howto_table[] =
{
  HOWTO (R_RELWORD, 0, 1, 16, FALSE,
	 0, complain_overflow_dont, 0,
	 "+v16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
  HOWTO (R_RELLONG, 0, 2, 32, FALSE,
	 0, complain_overflow_dont, 0,
	 "+v32", TRUE, 0xffffffff, 0xffffffff, FALSE),

  HOWTO (R_RELWORD_NEG, 0, -1, 16, FALSE,
	 0, complain_overflow_dont, 0,
	 "-v16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
  HOWTO (R_RELLONG_NEG, 0, -2, 32, FALSE,
	 0, complain_overflow_dont, 0,
	 "-v32", TRUE, 0xffffffff, 0xffffffff, FALSE),
};

static int
get_offset (int len, unsigned char *ptr)
{
  int val = 0;

  if (len)
    {
      int i;

      val = *ptr++;
      if (val & 0x80)
	val |= ~0xff;
      for (i = 1; i < len; i++)
	val = (val << 8) | *ptr++;
    }

  return val;
}

static void
process_otr (bfd *abfd, struct ext_otr *otr, int pass)
{
  unsigned long shift;
  unsigned char *srcp = otr->data;
  unsigned char *endp = (unsigned char *) otr + otr->size;
  unsigned int bits = (otr->map[0] << 24)
  | (otr->map[1] << 16)
  | (otr->map[2] << 8)
  | (otr->map[3] << 0);

  struct esdid *esdid = &EDATA (abfd, otr->esdid - 1);
  unsigned char *contents = esdid->contents;
  int need_contents = 0;
  unsigned int dst_idx = esdid->pc;

  for (shift = ((unsigned long) 1 << 31); shift && srcp < endp; shift >>= 1)
    {
      if (bits & shift)
	{
	  int flag = *srcp++;
	  int esdids = (flag >> 5) & 0x7;
	  int sizeinwords = ((flag >> 3) & 1) ? 2 : 1;
	  int offsetlen = flag & 0x7;
	  int j;

	  if (esdids == 0)
	    {
	      /* A zero esdid means the new pc is the offset given.  */
	      dst_idx += get_offset (offsetlen, srcp);
	      srcp += offsetlen;
	    }
	  else
	    {
	      int val = get_offset (offsetlen, srcp + esdids);

	      if (pass == 1)
		need_contents = 1;
	      else
		for (j = 0; j < sizeinwords * 2; j++)
		  {
		    contents[dst_idx + (sizeinwords * 2) - j - 1] = val;
		    val >>= 8;
		  }

	      for (j = 0; j < esdids; j++)
		{
		  int id = *srcp++;

		  if (id)
		    {
		      int rn = EDATA (abfd, otr->esdid - 1).relocs++;

		      if (pass == 1)
			{
			  /* This is the first pass over the data,
			     just remember that we need a reloc.  */
			}
		      else
			{
			  arelent *n =
			  EDATA (abfd, otr->esdid - 1).section->relocation + rn;
			  n->address = dst_idx;

			  n->sym_ptr_ptr = (asymbol **) (size_t) id;
			  n->addend = 0;
			  n->howto = versados_howto_table + ((j & 1) * 2) + (sizeinwords - 1);
			}
		    }
		}
	      srcp += offsetlen;
	      dst_idx += sizeinwords * 2;
	    }
	}
      else
	{
	  need_contents = 1;
	  if (dst_idx < esdid->section->size)
	    if (pass == 2)
	      {
		/* Absolute code, comes in 16 bit lumps.  */
		contents[dst_idx] = srcp[0];
		contents[dst_idx + 1] = srcp[1];
	      }
	  dst_idx += 2;
	  srcp += 2;
	}
    }
  EDATA (abfd, otr->esdid - 1).pc = dst_idx;

  if (!contents && need_contents)
    {
      bfd_size_type size = esdid->section->size;
      esdid->contents = bfd_alloc (abfd, size);
    }
}

static bfd_boolean
versados_scan (bfd *abfd)
{
  int loop = 1;
  int i;
  int j;
  int nsecs = 0;
  bfd_size_type amt;

  VDATA (abfd)->stringlen = 0;
  VDATA (abfd)->nrefs = 0;
  VDATA (abfd)->ndefs = 0;
  VDATA (abfd)->ref_idx = 0;
  VDATA (abfd)->def_idx = 0;
  VDATA (abfd)->pass_2_done = 0;

  while (loop)
    {
      union ext_any any;

      if (!get_record (abfd, &any))
	return TRUE;
      switch (any.header.type)
	{
	case VHEADER:
	  break;
	case VEND:
	  loop = 0;
	  break;
	case VESTDEF:
	  process_esd (abfd, &any.esd, 1);
	  break;
	case VOTR:
	  process_otr (abfd, &any.otr, 1);
	  break;
	}
    }

  /* Now allocate space for the relocs and sections.  */
  VDATA (abfd)->nrefs = VDATA (abfd)->ref_idx;
  VDATA (abfd)->ndefs = VDATA (abfd)->def_idx;
  VDATA (abfd)->ref_idx = 0;
  VDATA (abfd)->def_idx = 0;

  abfd->symcount = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs;

  for (i = 0; i < 16; i++)
    {
      struct esdid *esdid = &EDATA (abfd, i);

      if (esdid->section)
	{
	  amt = (bfd_size_type) esdid->relocs * sizeof (arelent);
	  esdid->section->relocation = bfd_alloc (abfd, amt);

	  esdid->pc = 0;

	  if (esdid->contents)
	    esdid->section->flags |= SEC_HAS_CONTENTS | SEC_LOAD;

	  esdid->section->reloc_count = esdid->relocs;
	  if (esdid->relocs)
	    esdid->section->flags |= SEC_RELOC;

	  esdid->relocs = 0;

	  /* Add an entry into the symbol table for it.  */
	  nsecs++;
	  VDATA (abfd)->stringlen += strlen (esdid->section->name) + 1;
	}
    }

  abfd->symcount += nsecs;

  amt = abfd->symcount;
  amt *= sizeof (asymbol);
  VDATA (abfd)->symbols = bfd_alloc (abfd, amt);

  amt = VDATA (abfd)->stringlen;
  VDATA (abfd)->strings = bfd_alloc (abfd, amt);

  if ((VDATA (abfd)->symbols == NULL && abfd->symcount > 0)
      || (VDATA (abfd)->strings == NULL && VDATA (abfd)->stringlen > 0))
    return FALSE;

  /* Actually fill in the section symbols,
     we stick them at the end of the table.  */
  for (j = VDATA (abfd)->nrefs + VDATA (abfd)->ndefs, i = 0; i < 16; i++)
    {
      struct esdid *esdid = &EDATA (abfd, i);
      asection *sec = esdid->section;

      if (sec)
	{
	  asymbol *s = VDATA (abfd)->symbols + j;
	  s->name = new_symbol_string (abfd, sec->name);
	  s->section = sec;
	  s->flags = BSF_LOCAL;
	  s->value = 0;
	  s->the_bfd = abfd;
	  j++;
	}
    }

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

  /* Set this to nsecs - since we've already planted the section
     symbols.  */
  VDATA (abfd)->nsecsyms = nsecs;

  VDATA (abfd)->ref_idx = 0;

  return 1;
}

/* Check whether an existing file is a versados  file.  */

static const bfd_target *
versados_object_p (bfd *abfd)
{
  struct ext_vheader ext;
  unsigned char len;
  tdata_type *tdata_save;

  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
    return NULL;

  if (bfd_bread (&len, (bfd_size_type) 1, abfd) != 1)
    {
      if (bfd_get_error () != bfd_error_system_call)
	bfd_set_error (bfd_error_wrong_format);
      return NULL;
    }

  if (bfd_bread (&ext.type, (bfd_size_type) len, abfd) != len)
    {
      if (bfd_get_error () != bfd_error_system_call)
	bfd_set_error (bfd_error_wrong_format);
      return NULL;
    }

  /* We guess that the language field will never be larger than 10.
     In sample files, it is always either 0 or 1.  Checking for this
     prevents confusion with Intel Hex files.  */
  if (ext.type != VHEADER
      || ext.lang > 10)
    {
      bfd_set_error (bfd_error_wrong_format);
      return NULL;
    }

  /* OK, looks like a record, build the tdata and read in.  */
  tdata_save = abfd->tdata.versados_data;
  if (!versados_mkobject (abfd) || !versados_scan (abfd))
    {
      abfd->tdata.versados_data = tdata_save;
      return NULL;
    }

  return abfd->xvec;
}

static bfd_boolean
versados_pass_2 (bfd *abfd)
{
  union ext_any any;

  if (VDATA (abfd)->pass_2_done)
    return 1;

  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
    return 0;

  VDATA (abfd)->es_done = ES_BASE;

  /* Read records till we get to where we want to be.  */
  while (1)
    {
      get_record (abfd, &any);
      switch (any.header.type)
	{
	case VEND:
	  VDATA (abfd)->pass_2_done = 1;
	  return 1;
	case VESTDEF:
	  process_esd (abfd, &any.esd, 2);
	  break;
	case VOTR:
	  process_otr (abfd, &any.otr, 2);
	  break;
	}
    }
}

static bfd_boolean
versados_get_section_contents (bfd *abfd,
			       asection *section,
			       void * location,
			       file_ptr offset,
			       bfd_size_type count)
{
  if (!versados_pass_2 (abfd))
    return FALSE;

  memcpy (location,
	  EDATA (abfd, section->target_index).contents + offset,
	  (size_t) count);

  return TRUE;
}

#define versados_get_section_contents_in_window \
  _bfd_generic_get_section_contents_in_window

static bfd_boolean
versados_set_section_contents (bfd *abfd ATTRIBUTE_UNUSED,
			       sec_ptr section ATTRIBUTE_UNUSED,
			       const void * location ATTRIBUTE_UNUSED,
			       file_ptr offset ATTRIBUTE_UNUSED,
			       bfd_size_type bytes_to_do ATTRIBUTE_UNUSED)
{
  return FALSE;
}

static int
versados_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
			 struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
  return 0;
}

/* Return the amount of memory needed to read the symbol table.  */

static long
versados_get_symtab_upper_bound (bfd *abfd)
{
  return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
}

/* Return the symbol table.  */

static long
versados_canonicalize_symtab (bfd *abfd, asymbol **alocation)
{
  unsigned int symcount = bfd_get_symcount (abfd);
  unsigned int i;
  asymbol *s;

  versados_pass_2 (abfd);

  for (i = 0, s = VDATA (abfd)->symbols;
       i < symcount;
       s++, i++)
    *alocation++ = s;

  *alocation = NULL;

  return symcount;
}

static void
versados_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
			  asymbol *symbol,
			  symbol_info *ret)
{
  bfd_symbol_info (symbol, ret);
}

static void
versados_print_symbol (bfd *abfd,
		       void * afile,
		       asymbol *symbol,
		       bfd_print_symbol_type how)
{
  FILE *file = (FILE *) afile;

  switch (how)
    {
    case bfd_print_symbol_name:
      fprintf (file, "%s", symbol->name);
      break;
    default:
      bfd_print_symbol_vandf (abfd, (void *) file, symbol);
      fprintf (file, " %-5s %s",
	       symbol->section->name,
	       symbol->name);
    }
}

static long
versados_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
				sec_ptr asect)
{
  return (asect->reloc_count + 1) * sizeof (arelent *);
}

static long
versados_canonicalize_reloc (bfd *abfd,
			     sec_ptr section,
			     arelent **relptr,
			     asymbol **symbols)
{
  unsigned int count;
  arelent *src;

  versados_pass_2 (abfd);
  src = section->relocation;
  if (!EDATA (abfd, section->target_index).donerel)
    {
      EDATA (abfd, section->target_index).donerel = 1;
      /* Translate from indexes to symptr ptrs.  */
      for (count = 0; count < section->reloc_count; count++)
	{
	  int esdid = (int) (size_t) src[count].sym_ptr_ptr;

	  if (esdid == 0)
	    src[count].sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
	  else if (esdid < ES_BASE)
	    {
	      /* Section relative thing.  */
	      struct esdid *e = &EDATA (abfd, esdid - 1);

	      src[count].sym_ptr_ptr = e->section->symbol_ptr_ptr;
	    }
	  else
	    src[count].sym_ptr_ptr = symbols + esdid - ES_BASE;
	}
    }

  for (count = 0; count < section->reloc_count; count++)
    *relptr++ = src++;

  *relptr = 0;
  return section->reloc_count;
}

#define	versados_close_and_cleanup                    _bfd_generic_close_and_cleanup
#define versados_bfd_free_cached_info                 _bfd_generic_bfd_free_cached_info
#define versados_new_section_hook                     _bfd_generic_new_section_hook
#define versados_bfd_is_target_special_symbol   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define versados_bfd_is_local_label_name              bfd_generic_is_local_label_name
#define versados_get_lineno                           _bfd_nosymbols_get_lineno
#define versados_find_nearest_line                    _bfd_nosymbols_find_nearest_line
#define versados_find_inliner_info                    _bfd_nosymbols_find_inliner_info
#define versados_make_empty_symbol                    _bfd_generic_make_empty_symbol
#define versados_bfd_make_debug_symbol                _bfd_nosymbols_bfd_make_debug_symbol
#define versados_read_minisymbols                     _bfd_generic_read_minisymbols
#define versados_minisymbol_to_symbol                 _bfd_generic_minisymbol_to_symbol
#define versados_bfd_reloc_type_lookup                _bfd_norelocs_bfd_reloc_type_lookup
#define versados_bfd_reloc_name_lookup          _bfd_norelocs_bfd_reloc_name_lookup
#define versados_set_arch_mach                        bfd_default_set_arch_mach
#define versados_bfd_get_relocated_section_contents   bfd_generic_get_relocated_section_contents
#define versados_bfd_relax_section                    bfd_generic_relax_section
#define versados_bfd_gc_sections                      bfd_generic_gc_sections
#define versados_bfd_lookup_section_flags             bfd_generic_lookup_section_flags
#define versados_bfd_merge_sections                   bfd_generic_merge_sections
#define versados_bfd_is_group_section                 bfd_generic_is_group_section
#define versados_bfd_discard_group                    bfd_generic_discard_group
#define versados_section_already_linked               _bfd_generic_section_already_linked
#define versados_bfd_define_common_symbol             bfd_generic_define_common_symbol
#define versados_bfd_link_hash_table_create           _bfd_generic_link_hash_table_create
#define versados_bfd_link_hash_table_free             _bfd_generic_link_hash_table_free
#define versados_bfd_link_add_symbols                 _bfd_generic_link_add_symbols
#define versados_bfd_link_just_syms                   _bfd_generic_link_just_syms
#define versados_bfd_copy_link_hash_symbol_type \
  _bfd_generic_copy_link_hash_symbol_type
#define versados_bfd_final_link                       _bfd_generic_final_link
#define versados_bfd_link_split_section               _bfd_generic_link_split_section

const bfd_target m68k_versados_vec =
{
  "versados",			/* Name.  */
  bfd_target_versados_flavour,
  BFD_ENDIAN_BIG,		/* Target byte order.  */
  BFD_ENDIAN_BIG,		/* Target headers byte order.  */
  (HAS_RELOC | EXEC_P |		/* Object flags.  */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
  (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
   | SEC_ALLOC | SEC_LOAD | SEC_RELOC),		/* Section flags.  */
  0,				/* Leading underscore.  */
  ' ',				/* AR_pad_char.  */
  16,				/* AR_max_namelen.  */
  0,				/* match priority.  */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* Data.  */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  bfd_getb16, bfd_getb_signed_16, bfd_putb16,	/* Headers.  */

  {
    _bfd_dummy_target,
    versados_object_p,		/* bfd_check_format.  */
    _bfd_dummy_target,
    _bfd_dummy_target,
  },
  {
    bfd_false,
    versados_mkobject,
    _bfd_generic_mkarchive,
    bfd_false,
  },
  {				/* bfd_write_contents.  */
    bfd_false,
    bfd_false,
    _bfd_write_archive_contents,
    bfd_false,
  },

  BFD_JUMP_TABLE_GENERIC (versados),
  BFD_JUMP_TABLE_COPY (_bfd_generic),
  BFD_JUMP_TABLE_CORE (_bfd_nocore),
  BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
  BFD_JUMP_TABLE_SYMBOLS (versados),
  BFD_JUMP_TABLE_RELOCS (versados),
  BFD_JUMP_TABLE_WRITE (versados),
  BFD_JUMP_TABLE_LINK (versados),
  BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),

  NULL,

  NULL
};