aboutsummaryrefslogtreecommitdiff
path: root/bfd/bout.c
blob: de9c7c718ab03bc47a16075ca3a48ef131de5c5b (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
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
/* BFD back-end for Intel 960 b.out binaries.
   Copyright (C) 1990-2014 Free Software Foundation, Inc.
   Written by Cygnus Support.

   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.  */

#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "bfdlink.h"
#include "genlink.h"
#include "bout.h"
#include "libiberty.h"

#include "aout/stab_gnu.h"
#include "libaout.h"		/* BFD a.out internal data structures.  */

#define ABS32CODE 0
#define ABS32CODE_SHRUNK 1
#define PCREL24 2
#define CALLJ 3
#define ABS32 4
#define PCREL13 5
#define ABS32_MAYBE_RELAXABLE 1
#define ABS32_WAS_RELAXABLE 2

#define ALIGNER 10
#define ALIGNDONE 11

static reloc_howto_type howto_reloc_callj =
  HOWTO (CALLJ, 0, 2, 24, TRUE, 0, complain_overflow_signed, 0,"callj", TRUE, 0x00ffffff, 0x00ffffff,FALSE);
static  reloc_howto_type howto_reloc_abs32 =
  HOWTO (ABS32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"abs32", TRUE, 0xffffffff,0xffffffff,FALSE);
static reloc_howto_type howto_reloc_pcrel24 =
  HOWTO (PCREL24, 0, 2, 24, TRUE, 0, complain_overflow_signed,0,"pcrel24", TRUE, 0x00ffffff,0x00ffffff,FALSE);
static reloc_howto_type howto_reloc_pcrel13 =
  HOWTO (PCREL13, 0, 2, 13, TRUE, 0, complain_overflow_signed,0,"pcrel13", TRUE, 0x00001fff,0x00001fff,FALSE);
static reloc_howto_type howto_reloc_abs32codeshrunk =
  HOWTO (ABS32CODE_SHRUNK, 0, 2, 24, TRUE, 0, complain_overflow_signed, 0,"callx->callj", TRUE, 0x00ffffff, 0x00ffffff,FALSE);
static  reloc_howto_type howto_reloc_abs32code =
  HOWTO (ABS32CODE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"callx", TRUE, 0xffffffff,0xffffffff,FALSE);

static reloc_howto_type howto_align_table[] =
{
  HOWTO (ALIGNER, 0, 0x1, 0, FALSE, 0, complain_overflow_dont, 0, "align16", FALSE, 0, 0, FALSE),
  HOWTO (ALIGNER, 0, 0x3, 0, FALSE, 0, complain_overflow_dont, 0, "align32", FALSE, 0, 0, FALSE),
  HOWTO (ALIGNER, 0, 0x7, 0, FALSE, 0, complain_overflow_dont, 0, "align64", FALSE, 0, 0, FALSE),
  HOWTO (ALIGNER, 0, 0xf, 0, FALSE, 0, complain_overflow_dont, 0, "align128", FALSE, 0, 0, FALSE),
};

static reloc_howto_type howto_done_align_table[] =
{
  HOWTO (ALIGNDONE, 0x1, 0x1, 0, FALSE, 0, complain_overflow_dont, 0, "donealign16", FALSE, 0, 0, FALSE),
  HOWTO (ALIGNDONE, 0x3, 0x3, 0, FALSE, 0, complain_overflow_dont, 0, "donealign32", FALSE, 0, 0, FALSE),
  HOWTO (ALIGNDONE, 0x7, 0x7, 0, FALSE, 0, complain_overflow_dont, 0, "donealign64", FALSE, 0, 0, FALSE),
  HOWTO (ALIGNDONE, 0xf, 0xf, 0, FALSE, 0, complain_overflow_dont, 0, "donealign128", FALSE, 0, 0, FALSE),
};

/* Swaps the information in an executable header taken from a raw byte
   stream memory image, into the internal exec_header structure.  */

static void
bout_swap_exec_header_in (bfd *abfd,
			  struct external_exec *bytes,
			  struct internal_exec *execp)
{
  /* Now fill in fields in the execp, from the bytes in the raw data.  */
  execp->a_info      = H_GET_32 (abfd, bytes->e_info);
  execp->a_text      = GET_WORD (abfd, bytes->e_text);
  execp->a_data      = GET_WORD (abfd, bytes->e_data);
  execp->a_bss       = GET_WORD (abfd, bytes->e_bss);
  execp->a_syms      = GET_WORD (abfd, bytes->e_syms);
  execp->a_entry     = GET_WORD (abfd, bytes->e_entry);
  execp->a_trsize    = GET_WORD (abfd, bytes->e_trsize);
  execp->a_drsize    = GET_WORD (abfd, bytes->e_drsize);
  execp->a_tload     = GET_WORD (abfd, bytes->e_tload);
  execp->a_dload     = GET_WORD (abfd, bytes->e_dload);
  execp->a_talign    = bytes->e_talign[0];
  execp->a_dalign    = bytes->e_dalign[0];
  execp->a_balign    = bytes->e_balign[0];
  execp->a_relaxable = bytes->e_relaxable[0];
}

/* Swaps the information in an internal exec header structure into the
   supplied buffer ready for writing to disk.  */

static void
bout_swap_exec_header_out (bfd *abfd,
			   struct internal_exec *execp,
			   struct external_exec *bytes)
{
  /* Now fill in fields in the raw data, from the fields in the exec struct.  */
  H_PUT_32 (abfd, execp->a_info  , bytes->e_info);
  PUT_WORD (abfd, execp->a_text  , bytes->e_text);
  PUT_WORD (abfd, execp->a_data  , bytes->e_data);
  PUT_WORD (abfd, execp->a_bss   , bytes->e_bss);
  PUT_WORD (abfd, execp->a_syms  , bytes->e_syms);
  PUT_WORD (abfd, execp->a_entry , bytes->e_entry);
  PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize);
  PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize);
  PUT_WORD (abfd, execp->a_tload , bytes->e_tload);
  PUT_WORD (abfd, execp->a_dload , bytes->e_dload);
  bytes->e_talign[0]    = execp->a_talign;
  bytes->e_dalign[0]    = execp->a_dalign;
  bytes->e_balign[0]    = execp->a_balign;
  bytes->e_relaxable[0] = execp->a_relaxable;
}

/* Finish up the opening of a b.out file for reading.  Fill in all the
   fields that are not handled by common code.  */

static const bfd_target *
b_out_callback (bfd *abfd)
{
  struct internal_exec *execp = exec_hdr (abfd);
  unsigned long bss_start;

  /* Architecture and machine type.  */
  bfd_set_arch_mach (abfd,
		     bfd_arch_i960,     /* B.out only used on i960.  */
		     bfd_mach_i960_core /* Default.  */
		     );

  /* The positions of the string table and symbol table.  */
  obj_str_filepos (abfd) = N_STROFF (*execp);
  obj_sym_filepos (abfd) = N_SYMOFF (*execp);

  /* The alignments of the sections.  */
  obj_textsec (abfd)->alignment_power = execp->a_talign;
  obj_datasec (abfd)->alignment_power = execp->a_dalign;
  obj_bsssec  (abfd)->alignment_power = execp->a_balign;

  /* The starting addresses of the sections.  */
  obj_textsec (abfd)->vma = execp->a_tload;
  obj_datasec (abfd)->vma = execp->a_dload;

  obj_textsec (abfd)->lma = obj_textsec (abfd)->vma;
  obj_datasec (abfd)->lma = obj_datasec (abfd)->vma;

  /* And reload the sizes, since the aout module zaps them.  */
  obj_textsec (abfd)->size = execp->a_text;

  bss_start = execp->a_dload + execp->a_data; /* BSS = end of data section.  */
  obj_bsssec (abfd)->vma = align_power (bss_start, execp->a_balign);

  obj_bsssec (abfd)->lma = obj_bsssec (abfd)->vma;

  /* The file positions of the sections.  */
  obj_textsec (abfd)->filepos = N_TXTOFF (*execp);
  obj_datasec (abfd)->filepos = N_DATOFF (*execp);

  /* The file positions of the relocation info.  */
  obj_textsec (abfd)->rel_filepos = N_TROFF (*execp);
  obj_datasec (abfd)->rel_filepos =  N_DROFF (*execp);

  adata (abfd).page_size = 1;	/* Not applicable.  */
  adata (abfd).segment_size = 1; /* Not applicable.  */
  adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;

  if (execp->a_relaxable)
   abfd->flags |= BFD_IS_RELAXABLE;
  return abfd->xvec;
}

static const bfd_target *
b_out_object_p (bfd *abfd)
{
  struct internal_exec anexec;
  struct external_exec exec_bytes;
  bfd_size_type amt = EXEC_BYTES_SIZE;

  if (bfd_bread ((void *) &exec_bytes, amt, abfd) != amt)
    {
      if (bfd_get_error () != bfd_error_system_call)
	bfd_set_error (bfd_error_wrong_format);
      return 0;
    }

  anexec.a_info = H_GET_32 (abfd, exec_bytes.e_info);

  if (N_BADMAG (anexec))
    {
      bfd_set_error (bfd_error_wrong_format);
      return 0;
    }

  bout_swap_exec_header_in (abfd, &exec_bytes, &anexec);
  return aout_32_some_aout_object_p (abfd, &anexec, b_out_callback);
}

struct bout_data_struct
  {
    struct aoutdata a;
    struct internal_exec e;
  };

static bfd_boolean
b_out_mkobject (bfd *abfd)
{
  struct bout_data_struct *rawptr;
  bfd_size_type amt = sizeof (struct bout_data_struct);

  rawptr = bfd_zalloc (abfd, amt);
  if (rawptr == NULL)
    return FALSE;

  abfd->tdata.bout_data = rawptr;
  exec_hdr (abfd) = &rawptr->e;

  obj_textsec (abfd) = NULL;
  obj_datasec (abfd) = NULL;
  obj_bsssec (abfd)  = NULL;

  return TRUE;
}

static int
b_out_symbol_cmp (const void * a_ptr, const void * b_ptr)
{
  struct aout_symbol ** a = (struct aout_symbol **) a_ptr;
  struct aout_symbol ** b = (struct aout_symbol **) b_ptr;
  asection *sec;
  bfd_vma av, bv;

  /* Primary key is address.  */
  sec = bfd_get_section (&(*a)->symbol);
  av = sec->output_section->vma + sec->output_offset + (*a)->symbol.value;
  sec = bfd_get_section (&(*b)->symbol);
  bv = sec->output_section->vma + sec->output_offset + (*b)->symbol.value;

  if (av < bv)
    return -1;
  if (av > bv)
    return 1;

  /* Secondary key puts CALLNAME syms last and BALNAME syms first,
     so that they have the best chance of being contiguous.  */
  if (IS_BALNAME ((*a)->other) || IS_CALLNAME ((*b)->other))
    return -1;
  if (IS_CALLNAME ((*a)->other) || IS_BALNAME ((*b)->other))
    return 1;

  return 0;
}

static bfd_boolean
b_out_squirt_out_relocs (bfd *abfd, asection *section)
{
  arelent **generic;
  int r_extern = 0;
  int r_idx;
  int incode_mask;
  int len_1;
  unsigned int count = section->reloc_count;
  struct relocation_info *native, *natptr;
  bfd_size_type natsize;
  int extern_mask, pcrel_mask, len_2, callj_mask;

  if (count == 0)
    return TRUE;

  generic = section->orelocation;
  natsize = (bfd_size_type) count * sizeof (struct relocation_info);
  native = bfd_malloc (natsize);
  if (!native && natsize != 0)
    return FALSE;

  if (bfd_header_big_endian (abfd))
    {
      /* Big-endian bit field allocation order.  */
      pcrel_mask  = 0x80;
      extern_mask = 0x10;
      len_2       = 0x40;
      len_1       = 0x20;
      callj_mask  = 0x02;
      incode_mask = 0x08;
    }
  else
    {
      /* Little-endian bit field allocation order.  */
      pcrel_mask  = 0x01;
      extern_mask = 0x08;
      len_2       = 0x04;
      len_1       = 0x02;
      callj_mask  = 0x40;
      incode_mask = 0x10;
    }

  for (natptr = native; count > 0; --count, ++natptr, ++generic)
    {
      arelent *g = *generic;
      unsigned char *raw = (unsigned char *) natptr;
      asymbol *sym = *(g->sym_ptr_ptr);
      asection *output_section = sym->section->output_section;

      H_PUT_32 (abfd, g->address, raw);
      /* Find a type in the output format which matches the input howto -
	 at the moment we assume input format == output format FIXME!!  */
      r_idx = 0;
      /* FIXME:  Need callj stuff here, and to check the howto entries to
	 be sure they are real for this architecture.  */
      if (g->howto== &howto_reloc_callj)
	raw[7] = callj_mask + pcrel_mask + len_2;
      else if (g->howto == &howto_reloc_pcrel24)
	raw[7] = pcrel_mask + len_2;
      else if (g->howto == &howto_reloc_pcrel13)
	raw[7] = pcrel_mask + len_1;
      else if (g->howto == &howto_reloc_abs32code)
	raw[7] = len_2 + incode_mask;
      else if (g->howto >= howto_align_table
	       && g->howto <= (howto_align_table + ARRAY_SIZE (howto_align_table) - 1))
	{
	  /* symnum == -2; extern_mask not set, pcrel_mask set.  */
	  r_idx = -2;
	  r_extern = 0;
	  raw[7] = (pcrel_mask
		    | ((g->howto - howto_align_table) << 1));
	}
      else
	raw[7] = len_2;

      if (r_idx != 0)
	/* Already mucked with r_extern, r_idx.  */;
      else if (bfd_is_com_section (output_section)
	       || bfd_is_abs_section (output_section)
	       || bfd_is_und_section (output_section))
	{
	  if (bfd_abs_section_ptr->symbol == sym)
	    {
	      /* Whoops, looked like an abs symbol, but is really an offset
		 from the abs section.  */
	      r_idx = 0;
	      r_extern = 0;
	    }
	  else
	    {
	      /* Fill in symbol.  */
	      r_extern = 1;
	      r_idx = (*g->sym_ptr_ptr)->udata.i;
	    }
	}
      else
	{
	  /* Just an ordinary section.  */
	  r_extern = 0;
	  r_idx  = output_section->target_index;
	}

      if (bfd_header_big_endian (abfd))
	{
	  raw[4] = (unsigned char) (r_idx >> 16);
	  raw[5] = (unsigned char) (r_idx >>  8);
	  raw[6] = (unsigned char) (r_idx      );
	}
      else
	{
	  raw[6] = (unsigned char) (r_idx >> 16);
	  raw[5] = (unsigned char) (r_idx>>   8);
	  raw[4] = (unsigned char) (r_idx      );
	}

      if (r_extern)
	raw[7] |= extern_mask;
    }

  if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
    {
      free (native);
      return FALSE;
    }

  free (native);

  return TRUE;
}

static bfd_boolean
b_out_write_object_contents (bfd *abfd)
{
  struct external_exec swapped_hdr;
  bfd_size_type amt;

  if (! aout_32_make_sections (abfd))
    return FALSE;

  exec_hdr (abfd)->a_info = BMAGIC;

  exec_hdr (abfd)->a_text = obj_textsec (abfd)->size;
  exec_hdr (abfd)->a_data = obj_datasec (abfd)->size;
  exec_hdr (abfd)->a_bss = obj_bsssec (abfd)->size;
  exec_hdr (abfd)->a_syms = bfd_get_symcount (abfd) * 12;
  exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
  exec_hdr (abfd)->a_trsize = (obj_textsec (abfd)->reloc_count) * 8;
  exec_hdr (abfd)->a_drsize = (obj_datasec (abfd)->reloc_count) * 8;

  exec_hdr (abfd)->a_talign = obj_textsec (abfd)->alignment_power;
  exec_hdr (abfd)->a_dalign = obj_datasec (abfd)->alignment_power;
  exec_hdr (abfd)->a_balign = obj_bsssec (abfd)->alignment_power;

  exec_hdr (abfd)->a_tload = obj_textsec (abfd)->vma;
  exec_hdr (abfd)->a_dload = obj_datasec (abfd)->vma;

  bout_swap_exec_header_out (abfd, exec_hdr (abfd), &swapped_hdr);

  amt = EXEC_BYTES_SIZE;
  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
      || bfd_bwrite ((void *) &swapped_hdr, amt, abfd) != amt)
    return FALSE;

  /* Now write out reloc info, followed by syms and strings */
  if (bfd_get_symcount (abfd) != 0)
    {
      /* Make sure {CALL,BAL}NAME symbols remain adjacent on output
	 by sorting.  This is complicated by the fact that stabs are
	 also ordered.  Solve this by shifting all stabs to the end
	 in order, then sorting the rest.  */

      asymbol **outsyms, **p, **q;

      outsyms = bfd_get_outsymbols (abfd);
      p = outsyms + bfd_get_symcount (abfd);

      for (q = p--; p >= outsyms; p--)
	{
	  if ((*p)->flags & BSF_DEBUGGING)
	    {
	      asymbol *t = *--q;
	      *q = *p;
	      *p = t;
	    }
	}

      if (q > outsyms)
	qsort (outsyms, (size_t) (q - outsyms), sizeof (asymbol*),
	       b_out_symbol_cmp);

      /* Back to your regularly scheduled program.  */
      if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (*exec_hdr (abfd))), SEEK_SET)
	  != 0)
	return FALSE;

      if (! aout_32_write_syms (abfd))
	return FALSE;

      if (bfd_seek (abfd, (file_ptr) (N_TROFF (*exec_hdr (abfd))), SEEK_SET)
	  != 0)
	return FALSE;

      if (!b_out_squirt_out_relocs (abfd, obj_textsec (abfd)))
	return FALSE;
      if (bfd_seek (abfd, (file_ptr) (N_DROFF (*exec_hdr (abfd))), SEEK_SET)
	  != 0)
	return FALSE;

      if (!b_out_squirt_out_relocs (abfd, obj_datasec (abfd)))
	return FALSE;
    }
  return TRUE;
}

/* Some reloc hackery.  */

#define CALLS	  0x66003800	/* Template for 'calls' instruction	*/
#define BAL	  0x0b000000	/* Template for 'bal' instruction 	*/
#define BAL_MASK  0x00ffffff
#define BALX	  0x85f00000	/* Template for 'balx' instruction	*/
#define BALX_MASK 0x0007ffff
#define CALL      0x09000000
#define PCREL13_MASK 0x1fff

#define output_addr(sec) ((sec)->output_offset+(sec)->output_section->vma)

static bfd_vma
get_value (arelent *reloc,
	   struct bfd_link_info *link_info,
	   asection *input_section)
{
  bfd_vma value;
  asymbol *symbol = *(reloc->sym_ptr_ptr);

  /* A symbol holds a pointer to a section, and an offset from the
     base of the section.  To relocate, we find where the section will
     live in the output and add that in.  */
  if (bfd_is_und_section (symbol->section))
    {
      struct bfd_link_hash_entry *h;

      /* The symbol is undefined in this BFD.  Look it up in the
	 global linker hash table.  FIXME: This should be changed when
	 we convert b.out to use a specific final_link function and
	 change the interface to bfd_relax_section to not require the
	 generic symbols.  */
      h = bfd_wrapped_link_hash_lookup (input_section->owner, link_info,
					bfd_asymbol_name (symbol),
					FALSE, FALSE, TRUE);
      if (h != (struct bfd_link_hash_entry *) NULL
	  && (h->type == bfd_link_hash_defined
	      || h->type == bfd_link_hash_defweak))
	value = h->u.def.value + output_addr (h->u.def.section);
      else if (h != (struct bfd_link_hash_entry *) NULL
	       && h->type == bfd_link_hash_common)
	value = h->u.c.size;
      else
	{
	  if (! ((*link_info->callbacks->undefined_symbol)
		 (link_info, bfd_asymbol_name (symbol),
		  input_section->owner, input_section, reloc->address,
		  TRUE)))
	    abort ();
	  value = 0;
	}
    }
  else
    value = symbol->value + output_addr (symbol->section);

  /* Add the value contained in the relocation.  */
  value += reloc->addend;

  return value;
}

/* Magic to turn callx into calljx.  */

static bfd_reloc_status_type
calljx_callback (bfd *abfd,
		 struct bfd_link_info *link_info,
		 arelent *reloc_entry,
		 void * src,
		 void * dst,
		 asection *input_section)
{
  int word = bfd_get_32 (abfd, src);
  asymbol *symbol_in = *(reloc_entry->sym_ptr_ptr);
  aout_symbol_type *symbol = aout_symbol (symbol_in);
  bfd_vma value;

  value = get_value (reloc_entry, link_info, input_section);

  if (IS_CALLNAME (symbol->other))
    {
      aout_symbol_type *balsym = symbol+1;
      int inst = bfd_get_32 (abfd, (bfd_byte *) src-4);

      /* The next symbol should be an N_BALNAME.  */
      BFD_ASSERT (IS_BALNAME (balsym->other));
      inst &= BALX_MASK;
      inst |= BALX;
      bfd_put_32 (abfd, (bfd_vma) inst, (bfd_byte *) dst-4);
      symbol = balsym;
      value = (symbol->symbol.value
	       + output_addr (symbol->symbol.section));
    }

  word += value + reloc_entry->addend;

  bfd_put_32 (abfd, (bfd_vma) word, dst);
  return bfd_reloc_ok;
}

/* Magic to turn call into callj.  */

static bfd_reloc_status_type
callj_callback (bfd *abfd,
		struct bfd_link_info *link_info,
		arelent *reloc_entry,
		void * data,
		unsigned int srcidx,
		unsigned int dstidx,
		asection *input_section,
		bfd_boolean shrinking)
{
  int word = bfd_get_32 (abfd, (bfd_byte *) data + srcidx);
  asymbol *symbol_in = *(reloc_entry->sym_ptr_ptr);
  aout_symbol_type *symbol = aout_symbol (symbol_in);
  bfd_vma value;

  value = get_value (reloc_entry, link_info, input_section);

  if (IS_OTHER (symbol->other))
    /* Call to a system procedure - replace code with system
       procedure number.  */
    word = CALLS | (symbol->other - 1);

  else if (IS_CALLNAME (symbol->other))
    {
      aout_symbol_type *balsym = symbol+1;

      /* The next symbol should be an N_BALNAME.  */
      BFD_ASSERT (IS_BALNAME (balsym->other));

      /* We are calling a leaf, so replace the call instruction with a
	 bal.  */
      word = BAL | ((word
		     + output_addr (balsym->symbol.section)
		     + balsym->symbol.value + reloc_entry->addend
		     - dstidx
		     - output_addr (input_section))
		    & BAL_MASK);
    }
  else if ((symbol->symbol.flags & BSF_SECTION_SYM) != 0)
    {
      /* A callj against a symbol in the same section is a fully
         resolved relative call.  We don't need to do anything here.
         If the symbol is not in the same section, I'm not sure what
         to do; fortunately, this case will probably never arise.  */
      BFD_ASSERT (! shrinking);
      BFD_ASSERT (symbol->symbol.section == input_section);
    }
  else
    word = CALL | (((word & BAL_MASK)
		    + value
		    + reloc_entry->addend
		    - (shrinking ? dstidx : 0)
		    - output_addr (input_section))
		   & BAL_MASK);

  bfd_put_32 (abfd, (bfd_vma) word, (bfd_byte *) data + dstidx);
  return bfd_reloc_ok;
}

static reloc_howto_type *
b_out_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
			     bfd_reloc_code_real_type code)
{
  switch (code)
    {
    default:
      return 0;
    case BFD_RELOC_I960_CALLJ:
      return &howto_reloc_callj;
    case BFD_RELOC_32:
    case BFD_RELOC_CTOR:
      return &howto_reloc_abs32;
    case BFD_RELOC_24_PCREL:
      return &howto_reloc_pcrel24;
    }
}

static reloc_howto_type *
b_out_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
			     const char *r_name)
{
  if (strcasecmp (howto_reloc_callj.name, r_name) == 0)
    return &howto_reloc_callj;
  if (strcasecmp (howto_reloc_abs32.name, r_name) == 0)
    return &howto_reloc_abs32;
  if (strcasecmp (howto_reloc_pcrel24.name, r_name) == 0)
    return &howto_reloc_pcrel24;

  return NULL;
}

/* Allocate enough room for all the reloc entries, plus pointers to them all.  */

static bfd_boolean
b_out_slurp_reloc_table (bfd *abfd, sec_ptr asect, asymbol **symbols)
{
  struct relocation_info *rptr;
  unsigned int counter;
  arelent *cache_ptr;
  int extern_mask, pcrel_mask, callj_mask, length_shift;
  int incode_mask;
  int size_mask;
  bfd_vma prev_addr = 0;
  unsigned int count;
  bfd_size_type reloc_size, amt;
  struct relocation_info *relocs;
  arelent *reloc_cache;

  if (asect->relocation)
    return TRUE;

  if (!aout_32_slurp_symbol_table (abfd))
    return FALSE;

  if (asect == obj_datasec (abfd))
    reloc_size = exec_hdr (abfd)->a_drsize;
  else if (asect == obj_textsec (abfd))
    reloc_size = exec_hdr (abfd)->a_trsize;
  else if (asect == obj_bsssec (abfd))
    reloc_size = 0;
  else
    {
      bfd_set_error (bfd_error_invalid_operation);
      return FALSE;
    }

  if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
    return FALSE;
  count = reloc_size / sizeof (struct relocation_info);

  relocs = bfd_malloc (reloc_size);
  if (!relocs && reloc_size != 0)
    return FALSE;

  amt = ((bfd_size_type) count + 1) * sizeof (arelent);
  reloc_cache = bfd_malloc (amt);
  if (!reloc_cache)
    {
      if (relocs != NULL)
	free (relocs);
      return FALSE;
    }

  if (bfd_bread ((void *) relocs, reloc_size, abfd) != reloc_size)
    {
      free (reloc_cache);
      if (relocs != NULL)
	free (relocs);
      return FALSE;
    }

  if (bfd_header_big_endian (abfd))
    {
      /* Big-endian bit field allocation order.  */
      pcrel_mask  = 0x80;
      extern_mask = 0x10;
      incode_mask = 0x08;
      callj_mask  = 0x02;
      size_mask =   0x20;
      length_shift = 5;
    }
  else
    {
      /* Little-endian bit field allocation order.  */
      pcrel_mask  = 0x01;
      extern_mask = 0x08;
      incode_mask = 0x10;
      callj_mask  = 0x40;
      size_mask   = 0x02;
      length_shift = 1;
    }

  for (rptr = relocs, cache_ptr = reloc_cache, counter = 0;
       counter < count;
       counter++, rptr++, cache_ptr++)
  {
    unsigned char *raw = (unsigned char *)rptr;
    unsigned int symnum;

    cache_ptr->address = H_GET_32 (abfd, raw + 0);
    cache_ptr->howto = 0;

    if (bfd_header_big_endian (abfd))
      symnum = (raw[4] << 16) | (raw[5] << 8) | raw[6];
    else
      symnum = (raw[6] << 16) | (raw[5] << 8) | raw[4];

    if (raw[7] & extern_mask)
      {
	/* If this is set then the r_index is an index into the symbol table;
	   if the bit is not set then r_index contains a section map.
	   We either fill in the sym entry with a pointer to the symbol,
	   or point to the correct section.  */
      cache_ptr->sym_ptr_ptr = symbols + symnum;
      cache_ptr->addend = 0;
      }
    else
      {
	/* In a.out symbols are relative to the beginning of the
	   file rather than sections ?
	   (look in translate_from_native_sym_flags)
	   The reloc entry addend has added to it the offset into the
	   file of the data, so subtract the base to make the reloc
	   section relative.  */
	int s;

	/* Sign-extend symnum from 24 bits to whatever host uses.  */
	s = symnum;
	if (s & (1 << 23))
	  s |= (~0) << 24;

	cache_ptr->sym_ptr_ptr = (asymbol **)NULL;
	switch (s)
	  {
	  case N_TEXT:
	  case N_TEXT | N_EXT:
	    cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr;
	    cache_ptr->addend = - obj_textsec (abfd)->vma;
	    break;
	  case N_DATA:
	  case N_DATA | N_EXT:
	    cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr;
	    cache_ptr->addend = - obj_datasec (abfd)->vma;
	    break;
	  case N_BSS:
	  case N_BSS | N_EXT:
	    cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr;
	    cache_ptr->addend =  - obj_bsssec (abfd)->vma;
	    break;
	  case N_ABS:
	  case N_ABS | N_EXT:
	    cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr;
	    cache_ptr->addend = 0;
	    break;
	  case -2: /* .align */
	    if (raw[7] & pcrel_mask)
	      {
		cache_ptr->howto = &howto_align_table[(raw[7] >> length_shift) & 3];
		cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
	      }
	    else
	      {
		/* .org? */
		abort ();
	      }
	    cache_ptr->addend = 0;
	    break;
	  default:
	    BFD_ASSERT (FALSE);
	    break;
	  }
      }

    /* The i960 only has a few relocation types:
       abs 32-bit and pcrel 24bit.   except for callj's!  */
    if (cache_ptr->howto != 0)
      ;
    else if (raw[7] & callj_mask)
      {
	cache_ptr->howto = &howto_reloc_callj;
      }
    else if ( raw[7] & pcrel_mask)
      {
	if (raw[7] & size_mask)
	  cache_ptr->howto = &howto_reloc_pcrel13;
	else
	  cache_ptr->howto = &howto_reloc_pcrel24;
      }
    else
      {
	if (raw[7] & incode_mask)
	  cache_ptr->howto = &howto_reloc_abs32code;
	else
	  cache_ptr->howto = &howto_reloc_abs32;
      }

    if (cache_ptr->address < prev_addr)
      {
	/* Ouch! this reloc is out of order, insert into the right place.  */
	arelent tmp;
	arelent *cursor = cache_ptr-1;
	bfd_vma stop = cache_ptr->address;

	tmp  = *cache_ptr;
	while (cursor->address > stop && cursor >= reloc_cache)
	  {
	    cursor[1] = cursor[0];
	    cursor--;
	  }

	cursor[1] = tmp;
      }
    else
      prev_addr = cache_ptr->address;
  }

  if (relocs != NULL)
    free (relocs);
  asect->relocation = reloc_cache;
  asect->reloc_count = count;

  return TRUE;
}

/* This is stupid.  This function should be a boolean predicate.  */

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

  if ((section->flags & SEC_CONSTRUCTOR) != 0)
    {
      arelent_chain *chain = section->constructor_chain;

      for (count = 0; count < section->reloc_count; count++)
	{
	  *relptr++ = &chain->relent;
	  chain = chain->next;
	}
    }
  else
    {
      if (section->relocation == NULL
	  && ! b_out_slurp_reloc_table (abfd, section, symbols))
	return -1;

      tblptr = section->relocation;
      for (count = 0; count++ < section->reloc_count;)
	*relptr++ = tblptr++;
    }

  *relptr = NULL;

  return section->reloc_count;
}

static long
b_out_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
{
  if (bfd_get_format (abfd) != bfd_object)
    {
      bfd_set_error (bfd_error_invalid_operation);
      return -1;
    }

  if (asect->flags & SEC_CONSTRUCTOR)
    return sizeof (arelent *) * (asect->reloc_count + 1);

  if (asect == obj_datasec (abfd))
    return (sizeof (arelent *) *
	    ((exec_hdr (abfd)->a_drsize / sizeof (struct relocation_info))
	     + 1));

  if (asect == obj_textsec (abfd))
    return (sizeof (arelent *) *
	    ((exec_hdr (abfd)->a_trsize / sizeof (struct relocation_info))
	     + 1));

  if (asect == obj_bsssec (abfd))
    return 0;

  bfd_set_error (bfd_error_invalid_operation);
  return -1;
}


static bfd_boolean
b_out_set_section_contents (bfd *abfd,
			    asection *section,
			    const void * location,
			    file_ptr offset,
			    bfd_size_type count)
{
  if (! abfd->output_has_begun)
    {
      /* Set by bfd.c handler.  */
      if (! aout_32_make_sections (abfd))
	return FALSE;

      obj_textsec (abfd)->filepos = sizeof (struct external_exec);
      obj_datasec (abfd)->filepos = obj_textsec (abfd)->filepos
	+  obj_textsec (abfd)->size;
    }

  /* Regardless, once we know what we're doing, we might as well get going.  */
  if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
    return FALSE;

  if (count == 0)
    return TRUE;

  return bfd_bwrite ((void *) location, count, abfd) == count;
}

static bfd_boolean
b_out_set_arch_mach (bfd *abfd,
		     enum bfd_architecture arch,
		     unsigned long machine)
{
  bfd_default_set_arch_mach (abfd, arch, machine);

  if (arch == bfd_arch_unknown)	/* Unknown machine arch is OK.  */
    return TRUE;

  if (arch == bfd_arch_i960)	/* i960 default is OK.  */
    switch (machine)
      {
      case bfd_mach_i960_core:
      case bfd_mach_i960_kb_sb:
      case bfd_mach_i960_mc:
      case bfd_mach_i960_xa:
      case bfd_mach_i960_ca:
      case bfd_mach_i960_ka_sa:
      case bfd_mach_i960_jx:
      case bfd_mach_i960_hx:
      case 0:
	return TRUE;
      default:
	return FALSE;
      }

  return FALSE;
}

static int
b_out_sizeof_headers (bfd *ignore_abfd ATTRIBUTE_UNUSED,
		      struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
  return sizeof (struct external_exec);
}

static void
perform_slip (bfd *abfd,
	      unsigned int slip,
	      asection *input_section,
	      bfd_vma value)
{
  asymbol **s;

  s = _bfd_generic_link_get_symbols (abfd);
  BFD_ASSERT (s != (asymbol **) NULL);

  /* Find all symbols past this point, and make them know
     what's happened.  */
  while (*s)
    {
      asymbol *p = *s;

      if (p->section == input_section)
	{
	  /* This was pointing into this section, so mangle it.  */
	  if (p->value > value)
	    {
	      p->value -=slip;

	      if (p->udata.p != NULL)
		{
		  struct generic_link_hash_entry *h;

		  h = (struct generic_link_hash_entry *) p->udata.p;
		  BFD_ASSERT (h->root.type == bfd_link_hash_defined);
		  h->root.u.def.value -= slip;
		  BFD_ASSERT (h->root.u.def.value == p->value);
		}
	    }
	}
      s++;
    }
}

/* This routine works out if the thing we want to get to can be
   reached with a 24bit offset instead of a 32 bit one.
   If it can, then it changes the amode.  */

static int
abs32code (bfd *abfd,
	   asection *input_section,
	   arelent *r,
	   unsigned int shrink,
	   struct bfd_link_info *link_info)
{
  bfd_vma value = get_value (r, link_info, input_section);
  bfd_vma dot = output_addr (input_section) + r->address;
  bfd_vma gap;

  /* See if the address we're looking at within 2^23 bytes of where
     we are, if so then we can use a small branch rather than the
     jump we were going to.  */
  gap = value - (dot - shrink);

  if (-1 << 23 < (long)gap && (long)gap < 1 << 23)
    {
      /* Change the reloc type from 32bitcode possible 24, to 24bit
	 possible 32.  */
      r->howto = &howto_reloc_abs32codeshrunk;
      /* The place to relc moves back by four bytes.  */
      r->address -=4;

      /* This will be four bytes smaller in the long run.  */
      shrink += 4 ;
      perform_slip (abfd, 4, input_section, r->address-shrink + 4);
    }

  return shrink;
}

static int
aligncode (bfd *abfd,
	   asection *input_section,
	   arelent *r,
	   unsigned int shrink)
{
  bfd_vma dot = output_addr (input_section) + r->address;
  bfd_vma old_end;
  bfd_vma new_end;
  unsigned int shrink_delta;
  int size = r->howto->size;

  /* Reduce the size of the alignment so that it's still aligned but
     smaller  - the current size is already the same size as or bigger
     than the alignment required.  */

  /* Calculate the first byte following the padding before we optimize.  */
  old_end = ((dot + size ) & ~size) + size+1;
  /* Work out where the new end will be - remember that we're smaller
     than we used to be.  */
  new_end = ((dot - shrink + size) & ~size);

  shrink_delta = (old_end - new_end) - shrink;

  if (shrink_delta)
    {
      /* Change the reloc so that it knows how far to align to.  */
      r->howto = howto_done_align_table + (r->howto - howto_align_table);

      /* Encode the stuff into the addend - for future use we need to
	 know how big the reloc used to be.  */
      r->addend = old_end - dot + r->address;

      /* This will be N bytes smaller in the long run, adjust all the symbols.  */
      perform_slip (abfd, shrink_delta, input_section, r->address - shrink);
      shrink += shrink_delta;
    }

  return shrink;
}

static bfd_boolean
b_out_bfd_relax_section (bfd *abfd,
			 asection *i,
			 struct bfd_link_info *link_info,
			 bfd_boolean *again)
{
  /* Get enough memory to hold the stuff.  */
  bfd *input_bfd = i->owner;
  asection *input_section = i;
  unsigned int shrink = 0 ;
  arelent **reloc_vector = NULL;
  long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);

  if (link_info->relocatable)
    (*link_info->callbacks->einfo)
      (_("%P%F: --relax and -r may not be used together\n"));

  if (reloc_size < 0)
    return FALSE;

  /* We only run this relaxation once.  It might work to run it
     multiple times, but it hasn't been tested.  */
  *again = FALSE;

  if (reloc_size)
    {
      long reloc_count;

      reloc_vector = bfd_malloc ((bfd_size_type) reloc_size);
      if (reloc_vector == NULL && reloc_size != 0)
	goto error_return;

      /* Get the relocs and think about them.  */
      reloc_count =
	bfd_canonicalize_reloc (input_bfd, input_section, reloc_vector,
				_bfd_generic_link_get_symbols (input_bfd));
      if (reloc_count < 0)
	goto error_return;
      if (reloc_count > 0)
	{
	  arelent **parent;

	  for (parent = reloc_vector; *parent; parent++)
	    {
	      arelent *r = *parent;

	      switch (r->howto->type)
		{
		case ALIGNER:
		  /* An alignment reloc.  */
		  shrink = aligncode (abfd, input_section, r, shrink);
		  break;
		case ABS32CODE:
		  /* A 32bit reloc in an addressing mode.  */
		  shrink = abs32code (input_bfd, input_section, r, shrink,
				      link_info);
		  break;
		case ABS32CODE_SHRUNK:
		  shrink += 4;
		  break;
		}
	    }
	}
    }
  input_section->size -= shrink;

  if (reloc_vector != NULL)
    free (reloc_vector);
  return TRUE;
 error_return:
  if (reloc_vector != NULL)
    free (reloc_vector);
  return FALSE;
}

static bfd_byte *
b_out_bfd_get_relocated_section_contents (bfd *output_bfd,
					  struct bfd_link_info *link_info,
					  struct bfd_link_order *link_order,
					  bfd_byte *data,
					  bfd_boolean relocatable,
					  asymbol **symbols)
{
  /* Get enough memory to hold the stuff.  */
  bfd *input_bfd = link_order->u.indirect.section->owner;
  asection *input_section = link_order->u.indirect.section;
  long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
  arelent **reloc_vector = NULL;
  long reloc_count;

  if (reloc_size < 0)
    goto error_return;

  /* If producing relocatable output, don't bother to relax.  */
  if (relocatable)
    return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
						       link_order,
						       data, relocatable,
						       symbols);

  reloc_vector = bfd_malloc ((bfd_size_type) reloc_size);
  if (reloc_vector == NULL && reloc_size != 0)
    goto error_return;

  /* Read in the section.  */
  BFD_ASSERT (bfd_get_section_contents (input_bfd,
					input_section,
					data,
					(bfd_vma) 0,
					input_section->size));

  reloc_count = bfd_canonicalize_reloc (input_bfd,
					input_section,
					reloc_vector,
					symbols);
  if (reloc_count < 0)
    goto error_return;
  if (reloc_count > 0)
    {
      arelent **parent = reloc_vector;
      arelent *reloc ;
      unsigned int dst_address = 0;
      unsigned int src_address = 0;
      unsigned int run;
      unsigned int idx;

      /* Find how long a run we can do.  */
      while (dst_address < link_order->size)
	{
	  reloc = *parent;
	  if (reloc)
	    {
	      /* Note that the relaxing didn't tie up the addresses in the
		 relocation, so we use the original address to work out the
		 run of non-relocated data.  */
	      BFD_ASSERT (reloc->address >= src_address);
	      run = reloc->address - src_address;
	      parent++;
	    }
	  else
	    run = link_order->size - dst_address;

	  /* Copy the bytes.  */
	  for (idx = 0; idx < run; idx++)
	    data[dst_address++] = data[src_address++];

	  /* Now do the relocation.  */
	  if (reloc)
	    {
	      switch (reloc->howto->type)
		{
		case ABS32CODE:
		  calljx_callback (input_bfd, link_info, reloc,
				   src_address + data, dst_address + data,
				   input_section);
		  src_address += 4;
		  dst_address += 4;
		  break;
		case ABS32:
		  bfd_put_32 (input_bfd,
			      (bfd_get_32 (input_bfd, data + src_address)
			       + get_value (reloc, link_info, input_section)),
			      data + dst_address);
		  src_address += 4;
		  dst_address += 4;
		  break;
		case CALLJ:
		  callj_callback (input_bfd, link_info, reloc, data,
				  src_address, dst_address, input_section,
				  FALSE);
		  src_address += 4;
		  dst_address += 4;
		  break;
		case ALIGNDONE:
		  BFD_ASSERT (reloc->addend >= src_address);
		  BFD_ASSERT ((bfd_vma) reloc->addend
			      <= input_section->size);
		  src_address = reloc->addend;
		  dst_address = ((dst_address + reloc->howto->size)
				 & ~reloc->howto->size);
		  break;
		case ABS32CODE_SHRUNK:
		  /* This used to be a callx, but we've found out that a
		     callj will reach, so do the right thing.  */
		  callj_callback (input_bfd, link_info, reloc, data,
				  src_address + 4, dst_address, input_section,
				  TRUE);
		  dst_address += 4;
		  src_address += 8;
		  break;
		case PCREL24:
		  {
		    long int word = bfd_get_32 (input_bfd,
						data + src_address);
		    bfd_vma value;

		    value = get_value (reloc, link_info, input_section);
		    word = ((word & ~BAL_MASK)
			    | (((word & BAL_MASK)
				+ value
				- output_addr (input_section)
				+ reloc->addend)
			       & BAL_MASK));

		    bfd_put_32 (input_bfd, (bfd_vma) word, data + dst_address);
		    dst_address += 4;
		    src_address += 4;

		  }
		  break;
		case PCREL13:
		  {
		    long int word = bfd_get_32 (input_bfd,
						data + src_address);
		    bfd_vma value;

		    value = get_value (reloc, link_info, input_section);
		    word = ((word & ~PCREL13_MASK)
			    | (((word & PCREL13_MASK)
				+ value
				+ reloc->addend
				- output_addr (input_section))
			       & PCREL13_MASK));

		    bfd_put_32 (input_bfd, (bfd_vma) word, data + dst_address);
		    dst_address += 4;
		    src_address += 4;
		  }
		  break;

		default:
		  abort ();
		}
	    }
	}
    }
  if (reloc_vector != NULL)
    free (reloc_vector);
  return data;
 error_return:
  if (reloc_vector != NULL)
    free (reloc_vector);
  return NULL;
}


/* Build the transfer vectors for Big and Little-Endian B.OUT files.  */

#define aout_32_find_line                      _bfd_nosymbols_find_line
#define aout_32_get_symbol_version_string      _bfd_nosymbols_get_symbol_version_string
#define aout_32_bfd_make_debug_symbol          _bfd_nosymbols_bfd_make_debug_symbol
#define aout_32_close_and_cleanup              aout_32_bfd_free_cached_info
#define b_out_bfd_link_hash_table_create       _bfd_generic_link_hash_table_create
#define b_out_bfd_link_add_symbols             _bfd_generic_link_add_symbols
#define b_out_bfd_link_just_syms               _bfd_generic_link_just_syms
#define b_out_bfd_copy_link_hash_symbol_type \
  _bfd_generic_copy_link_hash_symbol_type
#define b_out_bfd_final_link                   _bfd_generic_final_link
#define b_out_bfd_link_split_section           _bfd_generic_link_split_section
#define b_out_bfd_gc_sections                  bfd_generic_gc_sections
#define b_out_bfd_lookup_section_flags         bfd_generic_lookup_section_flags
#define b_out_bfd_merge_sections               bfd_generic_merge_sections
#define b_out_bfd_is_group_section             bfd_generic_is_group_section
#define b_out_bfd_discard_group                bfd_generic_discard_group
#define b_out_section_already_linked           _bfd_generic_section_already_linked
#define b_out_bfd_define_common_symbol         bfd_generic_define_common_symbol
#define aout_32_get_section_contents_in_window _bfd_generic_get_section_contents_in_window

extern const bfd_target bout_le_vec;

const bfd_target bout_be_vec =
{
  "b.out.big",			/* Name.  */
  bfd_target_aout_flavour,
  BFD_ENDIAN_LITTLE,		/* Data byte order.  */
  BFD_ENDIAN_BIG,		/* Header byte order.  */
  (HAS_RELOC | EXEC_P |		/* Object flags.  */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE ),
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
  '_',				/* Symbol leading char.  */
  ' ',				/* AR_pad_char.  */
  16,				/* AR_max_namelen.  */
  0,				/* match priority.  */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* 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, b_out_object_p, /* bfd_check_format.  */
   bfd_generic_archive_p, _bfd_dummy_target},
 {bfd_false, b_out_mkobject,	/* bfd_set_format.  */
   _bfd_generic_mkarchive, bfd_false},
 {bfd_false, b_out_write_object_contents, /* bfd_write_contents.  */
   _bfd_write_archive_contents, bfd_false},

     BFD_JUMP_TABLE_GENERIC (aout_32),
     BFD_JUMP_TABLE_COPY (_bfd_generic),
     BFD_JUMP_TABLE_CORE (_bfd_nocore),
     BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
     BFD_JUMP_TABLE_SYMBOLS (aout_32),
     BFD_JUMP_TABLE_RELOCS (b_out),
     BFD_JUMP_TABLE_WRITE (b_out),
     BFD_JUMP_TABLE_LINK (b_out),
     BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),

  & bout_le_vec,

  NULL
};

const bfd_target bout_le_vec =
{
  "b.out.little",		/* Name.  */
  bfd_target_aout_flavour,
  BFD_ENDIAN_LITTLE,		/* Data byte order.  */
  BFD_ENDIAN_LITTLE,		/* Header byte order.  */
  (HAS_RELOC | EXEC_P |		/* Object flags.  */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE ),
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
  '_',				/* Symbol leading char.  */
  ' ',				/* AR_pad_char.  */
  16,				/* AR_max_namelen.  */
  0,				/* match priority.  */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data.  */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers.  */

  {_bfd_dummy_target, b_out_object_p, /* bfd_check_format.  */
     bfd_generic_archive_p, _bfd_dummy_target},
  {bfd_false, b_out_mkobject,	/* bfd_set_format.  */
     _bfd_generic_mkarchive, bfd_false},
  {bfd_false, b_out_write_object_contents, /* bfd_write_contents.  */
     _bfd_write_archive_contents, bfd_false},

     BFD_JUMP_TABLE_GENERIC (aout_32),
     BFD_JUMP_TABLE_COPY (_bfd_generic),
     BFD_JUMP_TABLE_CORE (_bfd_nocore),
     BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
     BFD_JUMP_TABLE_SYMBOLS (aout_32),
     BFD_JUMP_TABLE_RELOCS (b_out),
     BFD_JUMP_TABLE_WRITE (b_out),
     BFD_JUMP_TABLE_LINK (b_out),
     BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),

  & bout_be_vec,

  NULL
};