aboutsummaryrefslogtreecommitdiff
path: root/bfd/elf32-frv.c
blob: f408b59076ac157a74c68edcf808ab4e70ea188d (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
/* FRV-specific support for 32-bit ELF.
   Copyright 2002, 2003 Free Software Foundation, Inc.

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 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 "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/frv.h"

/* Forward declarations.  */
static bfd_reloc_status_type elf32_frv_relocate_lo16
  PARAMS ((bfd *,  Elf_Internal_Rela *, bfd_byte *, bfd_vma));
static bfd_reloc_status_type elf32_frv_relocate_hi16
  PARAMS ((bfd *,  Elf_Internal_Rela *, bfd_byte *, bfd_vma));
static bfd_reloc_status_type elf32_frv_relocate_label24
  PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
static bfd_reloc_status_type elf32_frv_relocate_gprel12
  PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
	   bfd_byte *, bfd_vma));
static bfd_reloc_status_type elf32_frv_relocate_gprelu12
  PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
	   bfd_byte *, bfd_vma));
static bfd_reloc_status_type elf32_frv_relocate_gprello
  PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
	   bfd_byte *, bfd_vma));
static bfd_reloc_status_type elf32_frv_relocate_gprelhi
  PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
	   bfd_byte *, bfd_vma));
static reloc_howto_type *frv_reloc_type_lookup
  PARAMS ((bfd *, bfd_reloc_code_real_type));
static void frv_info_to_howto_rela
  PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
static bfd_boolean elf32_frv_relocate_section
  PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
	   Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
static bfd_boolean elf32_frv_add_symbol_hook
  PARAMS (( bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
	    const char **, flagword *, asection **, bfd_vma *));
static bfd_reloc_status_type frv_final_link_relocate
  PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
	   Elf_Internal_Rela *, bfd_vma));
static bfd_boolean elf32_frv_gc_sweep_hook
  PARAMS ((bfd *, struct bfd_link_info *, asection *, const
	   Elf_Internal_Rela *));
static asection * elf32_frv_gc_mark_hook
  PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
	   struct elf_link_hash_entry *, Elf_Internal_Sym *));
static bfd_boolean elf32_frv_check_relocs
  PARAMS ((bfd *, struct bfd_link_info *, asection *,
	   const Elf_Internal_Rela *));
static int elf32_frv_machine
  PARAMS ((bfd *));
static bfd_boolean elf32_frv_object_p
  PARAMS ((bfd *));
static bfd_boolean frv_elf_set_private_flags
  PARAMS ((bfd *, flagword));
static bfd_boolean frv_elf_copy_private_bfd_data
  PARAMS ((bfd *, bfd *));
static bfd_boolean frv_elf_merge_private_bfd_data
  PARAMS ((bfd *, bfd *));
static bfd_boolean frv_elf_print_private_bfd_data
  PARAMS ((bfd *, PTR));

static reloc_howto_type elf32_frv_howto_table [] =
{
  /* This reloc does nothing.  */
  HOWTO (R_FRV_NONE,		/* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 32,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_bitfield, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_NONE",		/* name */
	 FALSE,			/* partial_inplace */
	 0,			/* src_mask */
	 0,			/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* A 32 bit absolute relocation.  */
  HOWTO (R_FRV_32,		/* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 32,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_bitfield, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_32",		/* name */
	 FALSE,			/* partial_inplace */
	 0xffffffff,		/* src_mask */
	 0xffffffff,		/* dst_mask */
	 FALSE),		/* pcrel_offset */

  /* A 16 bit pc-relative relocation.  */
  HOWTO (R_FRV_LABEL16,	        /* type */
	 2,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 16,			/* bitsize */
	 TRUE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_bitfield, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_LABEL16",	/* name */
	 FALSE,			/* partial_inplace */
	 0xffff,		/* src_mask */
	 0xffff,		/* dst_mask */
	 TRUE),		        /* pcrel_offset */

  /* A 24-bit pc-relative relocation.  */
  HOWTO (R_FRV_LABEL24,	/* type */
	 2,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 26,			/* bitsize */
	 TRUE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_bitfield, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_LABEL24",	/* name */
	 FALSE,			/* partial_inplace */
	 0x7e03ffff,		/* src_mask */
	 0x7e03ffff,		/* dst_mask */
	 TRUE),		        /* pcrel_offset */

  HOWTO (R_FRV_LO16,	        /* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 16,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_LO16",		/* name */
	 FALSE,			/* partial_inplace */
	 0xffff,		/* src_mask */
	 0xffff,		/* dst_mask */
	 FALSE),	        /* pcrel_offset */

  HOWTO (R_FRV_HI16,	        /* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 16,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_HI16",		/* name */
	 FALSE,			/* partial_inplace */
	 0xffff,		/* src_mask */
	 0xffff,		/* dst_mask */
	 FALSE),	        /* pcrel_offset */

  HOWTO (R_FRV_GPREL12,	        /* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 12,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_GPREL12",       /* name */
	 FALSE,			/* partial_inplace */
	 0xfff,		        /* src_mask */
	 0xfff,		        /* dst_mask */
	 FALSE),	        /* pcrel_offset */

  HOWTO (R_FRV_GPRELU12,        /* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 12,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_GPRELU12",      /* name */
	 FALSE,			/* partial_inplace */
	 0xfff,		        /* src_mask */
	 0x3f03f,	        /* dst_mask */
	 FALSE),	        /* pcrel_offset */

  HOWTO (R_FRV_GPREL32,         /* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 32,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_GPREL32",	/* name */
	 FALSE,			/* partial_inplace */
	 0xffffffff,            /* src_mask */
	 0xffffffff,		/* dst_mask */
	 FALSE),	        /* pcrel_offset */

  HOWTO (R_FRV_GPRELHI,	        /* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 16,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_GPRELHI",	/* name */
	 FALSE,			/* partial_inplace */
	 0xffff,		        /* src_mask */
	 0xffff,		/* dst_mask */
	 FALSE),	        /* pcrel_offset */

  HOWTO (R_FRV_GPRELLO,	        /* type */
	 0,			/* rightshift */
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
	 16,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 bfd_elf_generic_reloc,	/* special_function */
	 "R_FRV_GPRELLO",	/* name */
	 FALSE,			/* partial_inplace */
	 0xffff,		        /* src_mask */
	 0xffff,		/* dst_mask */
	 FALSE),	        /* pcrel_offset */
};

/* GNU extension to record C++ vtable hierarchy.  */
static reloc_howto_type elf32_frv_vtinherit_howto =
  HOWTO (R_FRV_GNU_VTINHERIT,   /* type */
         0,                     /* rightshift */
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
         0,                     /* bitsize */
         FALSE,                 /* pc_relative */
         0,                     /* bitpos */
         complain_overflow_dont, /* complain_on_overflow */
         NULL,                  /* special_function */
         "R_FRV_GNU_VTINHERIT", /* name */
         FALSE,                 /* partial_inplace */
         0,                     /* src_mask */
         0,                     /* dst_mask */
         FALSE);                /* pcrel_offset */

  /* GNU extension to record C++ vtable member usage.  */
static reloc_howto_type elf32_frv_vtentry_howto =
  HOWTO (R_FRV_GNU_VTENTRY,     /* type */
         0,                     /* rightshift */
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
         0,                     /* bitsize */
         FALSE,                 /* pc_relative */
         0,                     /* bitpos */
         complain_overflow_dont, /* complain_on_overflow */
         _bfd_elf_rel_vtable_reloc_fn,  /* special_function */
         "R_FRV_GNU_VTENTRY",   /* name */
         FALSE,                 /* partial_inplace */
         0,                     /* src_mask */
         0,                     /* dst_mask */
         FALSE);                /* pcrel_offset */

/* Map BFD reloc types to FRV ELF reloc types.  */
#if 0
struct frv_reloc_map
{
  unsigned int bfd_reloc_val;
  unsigned int frv_reloc_val;
};

static const struct frv_reloc_map frv_reloc_map [] =
{
  { BFD_RELOC_NONE,           R_FRV_NONE },
  { BFD_RELOC_32,             R_FRV_32 },
  { BFD_RELOC_FRV_LABEL16,    R_FRV_LABEL16 },
  { BFD_RELOC_FRV_LABEL24,    R_FRV_LABEL24 },
  { BFD_RELOC_FRV_LO16,       R_FRV_LO16 },
  { BFD_RELOC_FRV_HI16,       R_FRV_HI16 },
  { BFD_RELOC_FRV_GPREL12,    R_FRV_GPREL12 },
  { BFD_RELOC_FRV_GPRELU12,   R_FRV_GPRELU12 },
  { BFD_RELOC_FRV_GPREL32,    R_FRV_GPREL32 },
  { BFD_RELOC_FRV_GPRELHI,    R_FRV_GPRELHI },
  { BFD_RELOC_FRV_GPRELLO,    R_FRV_GPRELLO },
  { BFD_RELOC_VTABLE_INHERIT, R_FRV_GNU_VTINHERIT },
  { BFD_RELOC_VTABLE_ENTRY,   R_FRV_GNU_VTENTRY },
};
#endif

/* Handle an FRV small data reloc.  */

static bfd_reloc_status_type
elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation,
			    contents, value)
     struct bfd_link_info *info;
     bfd *input_bfd;
     asection *input_section;
     Elf_Internal_Rela *relocation;
     bfd_byte *contents;
     bfd_vma value;
{
  bfd_vma insn;
  bfd_vma gp;
  struct bfd_link_hash_entry *h;

  h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);

  gp = (h->u.def.value
	+ h->u.def.section->output_section->vma
	+ h->u.def.section->output_offset);

  value -= input_section->output_section->vma;
  value -= (gp - input_section->output_section->vma);

  insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);

  value += relocation->r_addend;

  if ((long) value > 0x7ff || (long) value < -0x800)
    return bfd_reloc_overflow;

  bfd_put_32 (input_bfd,
	      (insn & 0xfffff000) | (value & 0xfff),
	      contents + relocation->r_offset);

  return bfd_reloc_ok;
}

/* Handle an FRV small data reloc. for the u12 field.  */

static bfd_reloc_status_type
elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation,
			     contents, value)
     struct bfd_link_info *info;
     bfd *input_bfd;
     asection *input_section;
     Elf_Internal_Rela *relocation;
     bfd_byte *contents;
     bfd_vma value;
{
  bfd_vma insn;
  bfd_vma gp;
  struct bfd_link_hash_entry *h;
  bfd_vma mask;

  h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);

  gp = (h->u.def.value
	+ h->u.def.section->output_section->vma
	+ h->u.def.section->output_offset);

  value -= input_section->output_section->vma;
  value -= (gp - input_section->output_section->vma);

  insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);

  value += relocation->r_addend;

  if ((long) value > 0x7ff || (long) value < -0x800)
    return bfd_reloc_overflow;

  /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0.  */
  mask = 0x3f03f;
  insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);

  bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);

  return bfd_reloc_ok;
}

/* Handle an FRV ELF HI16 reloc.  */

static bfd_reloc_status_type
elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
     bfd *input_bfd;
     Elf_Internal_Rela *relhi;
     bfd_byte *contents;
     bfd_vma value;
{
  bfd_vma insn;

  insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);

  value += relhi->r_addend;
  value = ((value >> 16) & 0xffff);

  insn = (insn & 0xffff0000) | value;

  if ((long) value > 0xffff || (long) value < -0x10000)
    return bfd_reloc_overflow;

  bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
  return bfd_reloc_ok;

}
static bfd_reloc_status_type
elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
     bfd *input_bfd;
     Elf_Internal_Rela *rello;
     bfd_byte *contents;
     bfd_vma value;
{
  bfd_vma insn;

  insn = bfd_get_32 (input_bfd, contents + rello->r_offset);

  value += rello->r_addend;
  value = value & 0xffff;

  insn = (insn & 0xffff0000) | value;

  if ((long) value > 0xffff || (long) value < -0x10000)
    return bfd_reloc_overflow;

  bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
  return bfd_reloc_ok;
}

/* Perform the relocation for the CALL label24 instruction.  */

static bfd_reloc_status_type
elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
     bfd *input_bfd;
     asection *input_section;
     Elf_Internal_Rela *rello;
     bfd_byte *contents;
     bfd_vma value;
{
  bfd_vma insn;
  bfd_vma label6;
  bfd_vma label18;

  /* The format for the call instruction is:

    0 000000 0001111 000000000000000000
      label6 opcode  label18

    The branch calculation is: pc + (4*label24)
    where label24 is the concatenation of label6 and label18.  */

  /* Grab the instruction.  */
  insn = bfd_get_32 (input_bfd, contents + rello->r_offset);

  value -= input_section->output_section->vma + input_section->output_offset;
  value -= rello->r_offset;
  value += rello->r_addend;

  value = value >> 2;

  label6  = value & 0xfc0000;
  label6  = label6 << 7;

  label18 = value & 0x3ffff;

  insn = insn & 0x803c0000;
  insn = insn | label6;
  insn = insn | label18;

  bfd_put_32 (input_bfd, insn, contents + rello->r_offset);

  return bfd_reloc_ok;
}

static bfd_reloc_status_type
elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation,
			    contents, value)
     struct bfd_link_info *info;
     bfd *input_bfd;
     asection *input_section;
     Elf_Internal_Rela *relocation;
     bfd_byte *contents;
     bfd_vma value;
{
  bfd_vma insn;
  bfd_vma gp;
  struct bfd_link_hash_entry *h;

  h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);

  gp = (h->u.def.value
        + h->u.def.section->output_section->vma
        + h->u.def.section->output_offset);

  value -= input_section->output_section->vma;
  value -= (gp - input_section->output_section->vma);
  value += relocation->r_addend;
  value = ((value >> 16) & 0xffff);

  if ((long) value > 0xffff || (long) value < -0x10000)
    return bfd_reloc_overflow;

  insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
  insn = (insn & 0xffff0000) | value;

  bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
  return bfd_reloc_ok;
}

static bfd_reloc_status_type
elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation,
			    contents, value)
     struct bfd_link_info *info;
     bfd *input_bfd;
     asection *input_section;
     Elf_Internal_Rela *relocation;
     bfd_byte *contents;
     bfd_vma value;
{
  bfd_vma insn;
  bfd_vma gp;
  struct bfd_link_hash_entry *h;

  h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);

  gp = (h->u.def.value
        + h->u.def.section->output_section->vma
        + h->u.def.section->output_offset);

  value -= input_section->output_section->vma;
  value -= (gp - input_section->output_section->vma);
  value += relocation->r_addend;
  value = value & 0xffff;

  if ((long) value > 0xffff || (long) value < -0x10000)
    return bfd_reloc_overflow;

  insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
  insn = (insn & 0xffff0000) | value;

  bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);

 return bfd_reloc_ok;
}

static reloc_howto_type *
frv_reloc_type_lookup (abfd, code)
     bfd *abfd ATTRIBUTE_UNUSED;
     bfd_reloc_code_real_type code;
{
  switch (code)
    {
    default:
      break;

    case BFD_RELOC_NONE:
      return &elf32_frv_howto_table[ (int) R_FRV_NONE];

    case BFD_RELOC_32:
    case BFD_RELOC_CTOR:
      return &elf32_frv_howto_table[ (int) R_FRV_32];

    case BFD_RELOC_FRV_LABEL16:
      return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];

    case BFD_RELOC_FRV_LABEL24:
      return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];

    case BFD_RELOC_FRV_LO16:
      return &elf32_frv_howto_table[ (int) R_FRV_LO16];

    case BFD_RELOC_FRV_HI16:
      return &elf32_frv_howto_table[ (int) R_FRV_HI16];

    case BFD_RELOC_FRV_GPREL12:
      return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];

    case BFD_RELOC_FRV_GPRELU12:
      return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];

    case BFD_RELOC_FRV_GPREL32:
      return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];

    case BFD_RELOC_FRV_GPRELHI:
      return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];

    case BFD_RELOC_FRV_GPRELLO:
      return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];

    case BFD_RELOC_VTABLE_INHERIT:
      return &elf32_frv_vtinherit_howto;

    case BFD_RELOC_VTABLE_ENTRY:
      return &elf32_frv_vtentry_howto;
    }

  return NULL;
}

/* Set the howto pointer for an FRV ELF reloc.  */

static void
frv_info_to_howto_rela (abfd, cache_ptr, dst)
     bfd *abfd ATTRIBUTE_UNUSED;
     arelent *cache_ptr;
     Elf_Internal_Rela *dst;
{
  unsigned int r_type;

  r_type = ELF32_R_TYPE (dst->r_info);
  switch (r_type)
    {
    case R_FRV_GNU_VTINHERIT:
      cache_ptr->howto = &elf32_frv_vtinherit_howto;
      break;

    case R_FRV_GNU_VTENTRY:
      cache_ptr->howto = &elf32_frv_vtentry_howto;
      break;

    default:
      cache_ptr->howto = & elf32_frv_howto_table [r_type];
      break;
    }
}

/* Perform a single relocation.  By default we use the standard BFD
   routines, but a few relocs, we have to do them ourselves.  */

static bfd_reloc_status_type
frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
			 relocation)
     reloc_howto_type *howto;
     bfd *input_bfd;
     asection *input_section;
     bfd_byte *contents;
     Elf_Internal_Rela *rel;
     bfd_vma relocation;
{
  return _bfd_final_link_relocate (howto, input_bfd, input_section,
				   contents, rel->r_offset, relocation,
				   rel->r_addend);
}


/* Relocate an FRV ELF section.

   The RELOCATE_SECTION function is called by the new ELF backend linker
   to handle the relocations for a section.

   The relocs are always passed as Rela structures; if the section
   actually uses Rel structures, the r_addend field will always be
   zero.

   This function is responsible for adjusting the section contents as
   necessary, and (if using Rela relocs and generating a relocatable
   output file) adjusting the reloc addend as necessary.

   This function does not have to worry about setting the reloc
   address or the reloc symbol index.

   LOCAL_SYMS is a pointer to the swapped in local symbols.

   LOCAL_SECTIONS is an array giving the section in the input file
   corresponding to the st_shndx field of each local symbol.

   The global hash table entry for the global symbols can be found
   via elf_sym_hashes (input_bfd).

   When generating relocatable output, this function must handle
   STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
   going to be the section symbol corresponding to the output
   section, which means that the addend must be adjusted
   accordingly.  */

static bfd_boolean
elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
			    contents, relocs, local_syms, local_sections)
     bfd *output_bfd ATTRIBUTE_UNUSED;
     struct bfd_link_info *info;
     bfd *input_bfd;
     asection *input_section;
     bfd_byte *contents;
     Elf_Internal_Rela *relocs;
     Elf_Internal_Sym *local_syms;
     asection **local_sections;
{
  Elf_Internal_Shdr *symtab_hdr;
  struct elf_link_hash_entry **sym_hashes;
  Elf_Internal_Rela *rel;
  Elf_Internal_Rela *relend;

  if (info->relocatable)
    return TRUE;

  symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
  sym_hashes = elf_sym_hashes (input_bfd);
  relend     = relocs + input_section->reloc_count;

  for (rel = relocs; rel < relend; rel ++)
    {
      reloc_howto_type *howto;
      unsigned long r_symndx;
      Elf_Internal_Sym *sym;
      asection *sec;
      struct elf_link_hash_entry *h;
      bfd_vma relocation;
      bfd_reloc_status_type r;
      const char * name = NULL;
      int r_type;

      r_type = ELF32_R_TYPE (rel->r_info);

      if (   r_type == R_FRV_GNU_VTINHERIT
	  || r_type == R_FRV_GNU_VTENTRY)
	continue;

      /* This is a final link.  */
      r_symndx = ELF32_R_SYM (rel->r_info);
      howto  = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
      h      = NULL;
      sym    = NULL;
      sec    = NULL;

      if (r_symndx < symtab_hdr->sh_info)
	{
	  sym = local_syms + r_symndx;
	  sec = local_sections [r_symndx];
	  relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);

	  name = bfd_elf_string_from_elf_section
	    (input_bfd, symtab_hdr->sh_link, sym->st_name);
	  name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
	}
      else
	{
	  h = sym_hashes [r_symndx - symtab_hdr->sh_info];

	  while (h->root.type == bfd_link_hash_indirect
		 || h->root.type == bfd_link_hash_warning)
	    h = (struct elf_link_hash_entry *) h->root.u.i.link;

	  name = h->root.root.string;

	  if (h->root.type == bfd_link_hash_defined
	      || h->root.type == bfd_link_hash_defweak)
	    {
	      sec = h->root.u.def.section;
	      relocation = (h->root.u.def.value
			    + sec->output_section->vma
			    + sec->output_offset);
	    }
	  else if (h->root.type == bfd_link_hash_undefweak)
	    {
	      relocation = 0;
	    }
	  else
	    {
	      if (! ((*info->callbacks->undefined_symbol)
		     (info, h->root.root.string, input_bfd,
		      input_section, rel->r_offset, TRUE)))
		return FALSE;
	      relocation = 0;
	    }
	}

     if (r_type == R_FRV_HI16)
       r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);

     else if (r_type == R_FRV_LO16)
       r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);

     else if (r_type == R_FRV_LABEL24)
       r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
				       contents, relocation);

     else if (r_type == R_FRV_GPREL12)
       r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
				       contents, relocation);

     else if (r_type == R_FRV_GPRELU12)
       r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
					contents, relocation);

     else if (r_type == R_FRV_GPRELLO)
       r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
				       contents, relocation);

     else if (r_type == R_FRV_GPRELHI)
       r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
				       contents, relocation);

     else
       r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
				    rel, relocation);

      if (r != bfd_reloc_ok)
	{
	  const char * msg = (const char *) NULL;

	  switch (r)
	    {
	    case bfd_reloc_overflow:
	      r = info->callbacks->reloc_overflow
		(info, name, howto->name, (bfd_vma) 0,
		 input_bfd, input_section, rel->r_offset);
	      break;

	    case bfd_reloc_undefined:
	      r = info->callbacks->undefined_symbol
		(info, name, input_bfd, input_section, rel->r_offset, TRUE);
	      break;

	    case bfd_reloc_outofrange:
	      msg = _("internal error: out of range error");
	      break;

	    case bfd_reloc_notsupported:
	      msg = _("internal error: unsupported relocation error");
	      break;

	    case bfd_reloc_dangerous:
	      msg = _("internal error: dangerous relocation");
	      break;

	    default:
	      msg = _("internal error: unknown error");
	      break;
	    }

	  if (msg)
	    r = info->callbacks->warning
	      (info, msg, name, input_bfd, input_section, rel->r_offset);

	  if (! r)
	    return FALSE;
	}
    }

  return TRUE;
}

/* Return the section that should be marked against GC for a given
   relocation.  */

static asection *
elf32_frv_gc_mark_hook (sec, info, rel, h, sym)
     asection *sec;
     struct bfd_link_info *info ATTRIBUTE_UNUSED;
     Elf_Internal_Rela *rel;
     struct elf_link_hash_entry *h;
     Elf_Internal_Sym *sym;
{
  if (h != NULL)
    {
      switch (ELF32_R_TYPE (rel->r_info))
	{
	case R_FRV_GNU_VTINHERIT:
	case R_FRV_GNU_VTENTRY:
	  break;

	default:
	  switch (h->root.type)
	    {
	    default:
	      break;

	    case bfd_link_hash_defined:
	    case bfd_link_hash_defweak:
	      return h->root.u.def.section;

	    case bfd_link_hash_common:
	      return h->root.u.c.p->section;
	    }
	}
    }
  else
    return bfd_section_from_elf_index (sec->owner, sym->st_shndx);

  return NULL;
}

/* Update the got entry reference counts for the section being removed.  */

static bfd_boolean
elf32_frv_gc_sweep_hook (abfd, info, sec, relocs)
     bfd *abfd ATTRIBUTE_UNUSED;
     struct bfd_link_info *info ATTRIBUTE_UNUSED;
     asection *sec ATTRIBUTE_UNUSED;
     const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
{
  return TRUE;
}


/* Hook called by the linker routine which adds symbols from an object
   file.  We use it to put .comm items in .scomm, and not .comm.  */

static bfd_boolean
elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
     bfd *abfd;
     struct bfd_link_info *info;
     const Elf_Internal_Sym *sym;
     const char **namep ATTRIBUTE_UNUSED;
     flagword *flagsp ATTRIBUTE_UNUSED;
     asection **secp;
     bfd_vma *valp;
{
  if (sym->st_shndx == SHN_COMMON
      && !info->relocatable
      && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
    {
      /* Common symbols less than or equal to -G nn bytes are
	 automatically put into .sbss.  */

      asection *scomm = bfd_get_section_by_name (abfd, ".scommon");

      if (scomm == NULL)
	{
	  scomm = bfd_make_section (abfd, ".scommon");
	  if (scomm == NULL
	      || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC
						       | SEC_IS_COMMON
						       | SEC_LINKER_CREATED)))
	    return FALSE;
	}

      *secp = scomm;
      *valp = sym->st_size;
    }

  return TRUE;
}
/* Look through the relocs for a section during the first phase.
   Since we don't do .gots or .plts, we just need to consider the
   virtual table relocs for gc.  */

static bfd_boolean
elf32_frv_check_relocs (abfd, info, sec, relocs)
     bfd *abfd;
     struct bfd_link_info *info;
     asection *sec;
     const Elf_Internal_Rela *relocs;
{
  Elf_Internal_Shdr *symtab_hdr;
  struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
  const Elf_Internal_Rela *rel;
  const Elf_Internal_Rela *rel_end;

  if (info->relocatable)
    return TRUE;

  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
  sym_hashes = elf_sym_hashes (abfd);
  sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
  if (!elf_bad_symtab (abfd))
    sym_hashes_end -= symtab_hdr->sh_info;

  rel_end = relocs + sec->reloc_count;
  for (rel = relocs; rel < rel_end; rel++)
    {
      struct elf_link_hash_entry *h;
      unsigned long r_symndx;

      r_symndx = ELF32_R_SYM (rel->r_info);
      if (r_symndx < symtab_hdr->sh_info)
        h = NULL;
      else
        h = sym_hashes[r_symndx - symtab_hdr->sh_info];

      switch (ELF32_R_TYPE (rel->r_info))
        {
        /* This relocation describes the C++ object vtable hierarchy.
           Reconstruct it for later use during GC.  */
        case R_FRV_GNU_VTINHERIT:
          if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
            return FALSE;
          break;

        /* This relocation describes which C++ vtable entries are actually
           used.  Record for later use during GC.  */
        case R_FRV_GNU_VTENTRY:
          if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
            return FALSE;
          break;
        }
    }

  return TRUE;
}


/* Return the machine subcode from the ELF e_flags header.  */

static int
elf32_frv_machine (abfd)
     bfd *abfd;
{
  switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
    {
    default:		    break;
    case EF_FRV_CPU_FR500:  return bfd_mach_fr500;
    case EF_FRV_CPU_FR400:  return bfd_mach_fr400;
    case EF_FRV_CPU_FR300:  return bfd_mach_fr300;
    case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
    case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
    }

  return bfd_mach_frv;
}

/* Set the right machine number for a FRV ELF file.  */

static bfd_boolean
elf32_frv_object_p (abfd)
     bfd *abfd;
{
  bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
  return TRUE;
}

/* Function to set the ELF flag bits.  */

static bfd_boolean
frv_elf_set_private_flags (abfd, flags)
     bfd *abfd;
     flagword flags;
{
  elf_elfheader (abfd)->e_flags = flags;
  elf_flags_init (abfd) = TRUE;
  return TRUE;
}

/* Copy backend specific data from one object module to another.  */

static bfd_boolean
frv_elf_copy_private_bfd_data (ibfd, obfd)
     bfd *ibfd;
     bfd *obfd;
{
  if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
    return TRUE;

  BFD_ASSERT (!elf_flags_init (obfd)
	      || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);

  elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
  elf_flags_init (obfd) = TRUE;
  return TRUE;
}

/* Merge backend specific data from an object file to the output
   object file when linking.  */

static bfd_boolean
frv_elf_merge_private_bfd_data (ibfd, obfd)
     bfd *ibfd;
     bfd *obfd;
{
  flagword old_flags, old_partial;
  flagword new_flags, new_partial;
  bfd_boolean error = FALSE;
  char new_opt[80];
  char old_opt[80];

  new_opt[0] = old_opt[0] = '\0';
  new_flags = elf_elfheader (ibfd)->e_flags;
  old_flags = elf_elfheader (obfd)->e_flags;

#ifdef DEBUG
  (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
			 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
			 bfd_get_filename (ibfd));
#endif

  if (!elf_flags_init (obfd))			/* First call, no flags set.  */
    {
      elf_flags_init (obfd) = TRUE;
      old_flags = new_flags;
    }

  else if (new_flags == old_flags)		/* Compatible flags are ok.  */
    ;

  else						/* Possibly incompatible flags.  */
    {
      /* Warn if different # of gprs are used.  Note, 0 means nothing is
         said about the size of gprs.  */
      new_partial = (new_flags & EF_FRV_GPR_MASK);
      old_partial = (old_flags & EF_FRV_GPR_MASK);
      if (new_partial == old_partial)
	;

      else if (new_partial == 0)
	;

      else if (old_partial == 0)
	old_flags |= new_partial;

      else
	{
	  switch (new_partial)
	    {
	    default:		strcat (new_opt, " -mgpr-??"); break;
	    case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
	    case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
	    }

	  switch (old_partial)
	    {
	    default:		strcat (old_opt, " -mgpr-??"); break;
	    case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
	    case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
	    }
	}

      /* Warn if different # of fprs are used.  Note, 0 means nothing is
         said about the size of fprs.  */
      new_partial = (new_flags & EF_FRV_FPR_MASK);
      old_partial = (old_flags & EF_FRV_FPR_MASK);
      if (new_partial == old_partial)
	;

      else if (new_partial == 0)
	;

      else if (old_partial == 0)
	old_flags |= new_partial;

      else
	{
	  switch (new_partial)
	    {
	    default:		  strcat (new_opt, " -mfpr-?");      break;
	    case EF_FRV_FPR_32:   strcat (new_opt, " -mfpr-32");     break;
	    case EF_FRV_FPR_64:   strcat (new_opt, " -mfpr-64");     break;
	    case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
	    }

	  switch (old_partial)
	    {
	    default:		  strcat (old_opt, " -mfpr-?");      break;
	    case EF_FRV_FPR_32:   strcat (old_opt, " -mfpr-32");     break;
	    case EF_FRV_FPR_64:   strcat (old_opt, " -mfpr-64");     break;
	    case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
	    }
	}

      /* Warn if different dword support was used.  Note, 0 means nothing is
         said about the dword support.  */
      new_partial = (new_flags & EF_FRV_DWORD_MASK);
      old_partial = (old_flags & EF_FRV_DWORD_MASK);
      if (new_partial == old_partial)
	;

      else if (new_partial == 0)
	;

      else if (old_partial == 0)
	old_flags |= new_partial;

      else
	{
	  switch (new_partial)
	    {
	    default:		   strcat (new_opt, " -mdword-?");  break;
	    case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword");    break;
	    case EF_FRV_DWORD_NO:  strcat (new_opt, " -mno-dword"); break;
	    }

	  switch (old_partial)
	    {
	    default:		   strcat (old_opt, " -mdword-?");  break;
	    case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword");    break;
	    case EF_FRV_DWORD_NO:  strcat (old_opt, " -mno-dword"); break;
	    }
	}

      /* Or in flags that accumulate (ie, if one module uses it, mark that the
	 feature is used.  */
      old_flags |= new_flags & (EF_FRV_DOUBLE
				| EF_FRV_MEDIA
				| EF_FRV_MULADD
				| EF_FRV_NON_PIC_RELOCS);

      /* If any module was compiled without -G0, clear the G0 bit.  */
      old_flags = ((old_flags & ~ EF_FRV_G0)
		   | (old_flags & new_flags & EF_FRV_G0));

      /* If any module was compiled without -mnopack, clear the mnopack bit.  */
      old_flags = ((old_flags & ~ EF_FRV_NOPACK)
		   | (old_flags & new_flags & EF_FRV_NOPACK));

      /* We don't have to do anything if the pic flags are the same, or the new
         module(s) were compiled with -mlibrary-pic.  */
      new_partial = (new_flags & EF_FRV_PIC_FLAGS);
      old_partial = (old_flags & EF_FRV_PIC_FLAGS);
      if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
	;

      /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
         flags if any from the new module.  */
      else if ((old_partial & EF_FRV_LIBPIC) != 0)
	old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;

      /* If we have mixtures of -fpic and -fPIC, or in both bits.  */
      else if (new_partial != 0 && old_partial != 0)
	old_flags |= new_partial;

      /* One module was compiled for pic and the other was not, see if we have
         had any relocations that are not pic-safe.  */
      else
	{
	  if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
	    old_flags |= new_partial;
	  else
	    {
	      old_flags &= ~ EF_FRV_PIC_FLAGS;
#ifndef FRV_NO_PIC_ERROR
	      error = TRUE;
	      (*_bfd_error_handler)
		(_("%s: compiled with %s and linked with modules that use non-pic relocations"),
		 bfd_get_filename (ibfd),
		 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
#endif
	    }
	}

      /* Warn if different cpu is used (allow a specific cpu to override
	 the generic cpu).  */
      new_partial = (new_flags & EF_FRV_CPU_MASK);
      old_partial = (old_flags & EF_FRV_CPU_MASK);
      if (new_partial == old_partial)
	;

      else if (new_partial == EF_FRV_CPU_GENERIC)
	;

      else if (old_partial == EF_FRV_CPU_GENERIC)
	old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;

      else
	{
	  switch (new_partial)
	    {
	    default:		     strcat (new_opt, " -mcpu=?");      break;
	    case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv");    break;
	    case EF_FRV_CPU_SIMPLE:  strcat (new_opt, " -mcpu=simple"); break;
	    case EF_FRV_CPU_FR500:   strcat (new_opt, " -mcpu=fr500");  break;
	    case EF_FRV_CPU_FR400:   strcat (new_opt, " -mcpu=fr400");  break;
	    case EF_FRV_CPU_FR300:   strcat (new_opt, " -mcpu=fr300");  break;
	    case EF_FRV_CPU_TOMCAT:  strcat (new_opt, " -mcpu=tomcat"); break;
	    }

	  switch (old_partial)
	    {
	    default:		     strcat (old_opt, " -mcpu=?");      break;
	    case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv");    break;
	    case EF_FRV_CPU_SIMPLE:  strcat (old_opt, " -mcpu=simple"); break;
	    case EF_FRV_CPU_FR500:   strcat (old_opt, " -mcpu=fr500");  break;
	    case EF_FRV_CPU_FR400:   strcat (old_opt, " -mcpu=fr400");  break;
	    case EF_FRV_CPU_FR300:   strcat (old_opt, " -mcpu=fr300");  break;
	    case EF_FRV_CPU_TOMCAT:  strcat (old_opt, " -mcpu=tomcat"); break;
	    }
	}

      /* Print out any mismatches from above.  */
      if (new_opt[0])
	{
	  error = TRUE;
	  (*_bfd_error_handler)
	    (_("%s: compiled with %s and linked with modules compiled with %s"),
	     bfd_get_filename (ibfd), new_opt, old_opt);
	}

      /* Warn about any other mismatches */
      new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
      old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
      if (new_partial != old_partial)
	{
	  old_flags |= new_partial;
	  error = TRUE;
	  (*_bfd_error_handler)
	    (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
	     bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
	}
    }

  /* If the cpu is -mcpu=simple, then set the -mnopack bit.  */
  if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
    old_flags |= EF_FRV_NOPACK;

  /* Update the old flags now with changes made above.  */
  old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
  elf_elfheader (obfd)->e_flags = old_flags;
  if (old_partial != (old_flags & EF_FRV_CPU_MASK))
    bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));

  if (error)
    bfd_set_error (bfd_error_bad_value);

  return !error;
}


bfd_boolean
frv_elf_print_private_bfd_data (abfd, ptr)
     bfd *abfd;
     PTR ptr;
{
  FILE *file = (FILE *) ptr;
  flagword flags;

  BFD_ASSERT (abfd != NULL && ptr != NULL);

  /* Print normal ELF private data.  */
  _bfd_elf_print_private_bfd_data (abfd, ptr);

  flags = elf_elfheader (abfd)->e_flags;
  fprintf (file, _("private flags = 0x%lx:"), (long)flags);

  switch (flags & EF_FRV_CPU_MASK)
    {
    default:							break;
    case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple");	break;
    case EF_FRV_CPU_FR500:  fprintf (file, " -mcpu=fr500");	break;
    case EF_FRV_CPU_FR400:  fprintf (file, " -mcpu=fr400");	break;
    case EF_FRV_CPU_FR300:  fprintf (file, " -mcpu=fr300");	break;
    case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat");	break;
    }

  switch (flags & EF_FRV_GPR_MASK)
    {
    default:							break;
    case EF_FRV_GPR_32: fprintf (file, " -mgpr-32");		break;
    case EF_FRV_GPR_64: fprintf (file, " -mgpr-64");		break;
    }

  switch (flags & EF_FRV_FPR_MASK)
    {
    default:							break;
    case EF_FRV_FPR_32:   fprintf (file, " -mfpr-32");		break;
    case EF_FRV_FPR_64:   fprintf (file, " -mfpr-64");		break;
    case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float");	break;
    }

  switch (flags & EF_FRV_DWORD_MASK)
    {
    default:							break;
    case EF_FRV_DWORD_YES: fprintf (file, " -mdword");		break;
    case EF_FRV_DWORD_NO:  fprintf (file, " -mno-dword");	break;
    }

  if (flags & EF_FRV_DOUBLE)
    fprintf (file, " -mdouble");

  if (flags & EF_FRV_MEDIA)
    fprintf (file, " -mmedia");

  if (flags & EF_FRV_MULADD)
    fprintf (file, " -mmuladd");

  if (flags & EF_FRV_PIC)
    fprintf (file, " -fpic");

  if (flags & EF_FRV_BIGPIC)
    fprintf (file, " -fPIC");

  if (flags & EF_FRV_NON_PIC_RELOCS)
    fprintf (file, " non-pic relocations");

  if (flags & EF_FRV_G0)
    fprintf (file, " -G0");

  fputc ('\n', file);
  return TRUE;
}


#define ELF_ARCH		bfd_arch_frv
#define ELF_MACHINE_CODE	EM_CYGNUS_FRV
#define ELF_MAXPAGESIZE		0x1000

#define TARGET_BIG_SYM          bfd_elf32_frv_vec
#define TARGET_BIG_NAME		"elf32-frv"

#define elf_info_to_howto_rel			NULL
#define elf_info_to_howto			frv_info_to_howto_rela
#define elf_backend_relocate_section		elf32_frv_relocate_section
#define elf_backend_gc_mark_hook		elf32_frv_gc_mark_hook
#define elf_backend_gc_sweep_hook		elf32_frv_gc_sweep_hook
#define elf_backend_check_relocs                elf32_frv_check_relocs
#define elf_backend_object_p			elf32_frv_object_p
#define elf_backend_add_symbol_hook             elf32_frv_add_symbol_hook

#define elf_backend_can_gc_sections		1
#define elf_backend_rela_normal			1

#define bfd_elf32_bfd_reloc_type_lookup		frv_reloc_type_lookup
#define bfd_elf32_bfd_set_private_flags		frv_elf_set_private_flags
#define bfd_elf32_bfd_copy_private_bfd_data	frv_elf_copy_private_bfd_data
#define bfd_elf32_bfd_merge_private_bfd_data	frv_elf_merge_private_bfd_data
#define bfd_elf32_bfd_print_private_bfd_data	frv_elf_print_private_bfd_data

#include "elf32-target.h"