aboutsummaryrefslogtreecommitdiff
path: root/bfd/elf32-arc.c
blob: ab27d4aca82884ac8ef64fcffdce17e98debbdb5 (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
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
/* ARC-specific support for 32-bit ELF
   Copyright (C) 1994-2016 Free Software Foundation, Inc.
   Contributed by Cupertino Miranda (cmiranda@synopsys.com).

   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 "elf-bfd.h"
#include "elf/arc.h"
#include "libiberty.h"
#include "opcode/arc-func.h"
#include "opcode/arc.h"
#include "arc-plt.h"

#define PR_DEBUG(fmt, args...) fprintf (stderr, fmt, ##args)

/* #define ARC_ENABLE_DEBUG 1  */
#ifndef ARC_ENABLE_DEBUG
#define ARC_DEBUG(...)
#else
static char *
name_for_global_symbol (struct elf_link_hash_entry *h)
{
  static char *local_str = "(local)";
  if (h == NULL)
    return local_str;
  else
    return h->root.root.string;
}
#define ARC_DEBUG(args...) fprintf (stderr, ##args)
#endif


#define ADD_RELA(BFD, SECTION, OFFSET, SYM_IDX, TYPE, ADDEND)		\
  {									\
    struct elf_link_hash_table *_htab = elf_hash_table (info);		\
    Elf_Internal_Rela _rel;						\
    bfd_byte * _loc;							\
									\
    BFD_ASSERT (_htab->srel##SECTION &&_htab->srel##SECTION->contents); \
    _loc = _htab->srel##SECTION->contents				\
      + ((_htab->srel##SECTION->reloc_count)				\
	 * sizeof (Elf32_External_Rela));				\
    _htab->srel##SECTION->reloc_count++;				\
    _rel.r_addend = ADDEND;						\
    _rel.r_offset = (_htab->s##SECTION)->output_section->vma		\
      + (_htab->s##SECTION)->output_offset + OFFSET;			\
    BFD_ASSERT ((long) SYM_IDX != -1);					\
    _rel.r_info = ELF32_R_INFO (SYM_IDX, TYPE);				\
    bfd_elf32_swap_reloca_out (BFD, &_rel, _loc);			\
  }

struct dynamic_sections
{
  bfd_boolean	  initialized;
  asection *      sgot;
  asection *      srelgot;
  asection *      sgotplt;
  asection *      srelgotplt;
  asection *      sdyn;
  asection *      splt;
  asection *      srelplt;
};

enum dyn_section_types
{
  got = 0,
  relgot,
  gotplt,
  dyn,
  plt,
  relplt,
  DYN_SECTION_TYPES_END
};

const char * dyn_section_names[DYN_SECTION_TYPES_END] =
{
  ".got",
  ".rela.got",
  ".got.plt",
  ".dynamic",
  ".plt",
  ".rela.plt"
};


/* The default symbols representing the init and fini dyn values.
   TODO: Check what is the relation of those strings with arclinux.em
   and DT_INIT.  */
#define INIT_SYM_STRING "_init"
#define FINI_SYM_STRING "_fini"

char * init_str = INIT_SYM_STRING;
char * fini_str = FINI_SYM_STRING;

#define ARC_RELOC_HOWTO(TYPE, VALUE, SIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \
      case VALUE: \
	return "R_" #TYPE; \
	break;

static ATTRIBUTE_UNUSED const char *
reloc_type_to_name (unsigned int type)
{
  switch (type)
    {
      #include "elf/arc-reloc.def"

      default:
	return "UNKNOWN";
	break;
    }
}
#undef ARC_RELOC_HOWTO

/* Try to minimize the amount of space occupied by relocation tables
   on the ROM (not that the ROM won't be swamped by other ELF overhead).  */

#define USE_REL 1

static ATTRIBUTE_UNUSED bfd_boolean
is_reloc_PC_relative (reloc_howto_type *howto)
{
  return (strstr (howto->name, "PC") != NULL) ? TRUE : FALSE;
}

static bfd_boolean
is_reloc_SDA_relative (reloc_howto_type *howto)
{
  return (strstr (howto->name, "SDA") != NULL) ? TRUE : FALSE;
}

static bfd_boolean
is_reloc_for_GOT (reloc_howto_type * howto)
{
  if (strstr (howto->name, "TLS") != NULL)
    return FALSE;
  return (strstr (howto->name, "GOT") != NULL) ? TRUE : FALSE;
}

static bfd_boolean
is_reloc_for_PLT (reloc_howto_type * howto)
{
  return (strstr (howto->name, "PLT") != NULL) ? TRUE : FALSE;
}

static bfd_boolean
is_reloc_for_TLS (reloc_howto_type *howto)
{
  return (strstr (howto->name, "TLS") != NULL) ? TRUE : FALSE;
}

struct arc_relocation_data
{
  bfd_signed_vma  reloc_offset;
  bfd_signed_vma  reloc_addend;
  bfd_signed_vma  got_offset_value;

  bfd_signed_vma  sym_value;
  asection *	  sym_section;

  reloc_howto_type *howto;

  asection *	  input_section;

  bfd_signed_vma  sdata_begin_symbol_vma;
  bfd_boolean	  sdata_begin_symbol_vma_set;
  bfd_signed_vma  got_symbol_vma;

  bfd_boolean	  should_relocate;

  const char *    symbol_name;
};

/* Should be included at this location due to static declarations
 * defined before this point.  */
#include "arc-got.h"

#define arc_bfd_get_8(A,B,C) bfd_get_8(A,B)
#define arc_bfd_get_16(A,B,C) bfd_get_16(A,B)
#define arc_bfd_get_32(A,B,C) bfd_get_32(A,B)
#define arc_bfd_put_8(A,B,C,D) bfd_put_8(A,B,C)
#define arc_bfd_put_16(A,B,C,D) bfd_put_16(A,B,C)
#define arc_bfd_put_32(A,B,C,D) bfd_put_32(A,B,C)


static bfd_reloc_status_type
arc_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED,
	       arelent *reloc_entry,
	       asymbol *symbol_in,
	       void *data ATTRIBUTE_UNUSED,
	       asection *input_section,
	       bfd *output_bfd,
	       char ** error_message ATTRIBUTE_UNUSED)
{
  if (output_bfd != NULL)
    {
      reloc_entry->address += input_section->output_offset;

      /* In case of relocateable link and if the reloc is against a
	 section symbol, the addend needs to be adjusted according to
	 where the section symbol winds up in the output section.  */
      if ((symbol_in->flags & BSF_SECTION_SYM) && symbol_in->section)
	reloc_entry->addend += symbol_in->section->output_offset;

      return bfd_reloc_ok;
    }

  return bfd_reloc_continue;
}


#define ARC_RELOC_HOWTO(TYPE, VALUE, SIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \
  TYPE = VALUE,
enum howto_list
{
#include "elf/arc-reloc.def"
  HOWTO_LIST_LAST
};
#undef ARC_RELOC_HOWTO

#define ARC_RELOC_HOWTO(TYPE, VALUE, RSIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \
  [TYPE] = HOWTO (R_##TYPE, 0, RSIZE, BITSIZE, FALSE, 0, complain_overflow_##OVERFLOW, arc_elf_reloc, "R_" #TYPE, FALSE, 0, 0, FALSE),

static struct reloc_howto_struct elf_arc_howto_table[] =
{
#include "elf/arc-reloc.def"
/* Example of what is generated by the preprocessor.  Currently kept as an
   example.
 HOWTO (R_ARC_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_ARC_NONE", // Name.
    TRUE, // Partial_inplace.
    0, // Src_mask.
    0, // Dst_mask.
    FALSE), // PCrel_offset.
*/
};
#undef ARC_RELOC_HOWTO

static void arc_elf_howto_init (void)
{
#define ARC_RELOC_HOWTO(TYPE, VALUE, SIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \
  elf_arc_howto_table[TYPE].pc_relative = \
    (strstr (#FORMULA, " P ") != NULL || strstr (#FORMULA, " PDATA ") != NULL); \
  elf_arc_howto_table[TYPE].dst_mask = RELOC_FUNCTION(0, ~0); \
  /* Only 32 bit data relocations should be marked as ME.  */ \
  if (strstr (#FORMULA, " ME ") != NULL) \
    { \
      BFD_ASSERT (SIZE == 2); \
    }

#include "elf/arc-reloc.def"

}
#undef ARC_RELOC_HOWTO


#define ARC_RELOC_HOWTO(TYPE, VALUE, SIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \
  [TYPE] = VALUE,
const int howto_table_lookup[] =
{
#include "elf/arc-reloc.def"
};
#undef ARC_RELOC_HOWTO

static reloc_howto_type *
arc_elf_howto (unsigned int r_type)
{
  if (elf_arc_howto_table[R_ARC_32].dst_mask == 0)
    arc_elf_howto_init ();
  return &elf_arc_howto_table[r_type];
}

/* Map BFD reloc types to ARC ELF reloc types.  */

struct arc_reloc_map
{
  bfd_reloc_code_real_type  bfd_reloc_val;
  unsigned char		    elf_reloc_val;
};

#define ARC_RELOC_HOWTO(TYPE, VALUE, SIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \
  { BFD_RELOC_##TYPE, R_##TYPE },
static const struct arc_reloc_map arc_reloc_map[] =
{
#include "elf/arc-reloc.def"

  {BFD_RELOC_NONE,  R_ARC_NONE},
  {BFD_RELOC_8,  R_ARC_8},
  {BFD_RELOC_16, R_ARC_16},
  {BFD_RELOC_24, R_ARC_24},
  {BFD_RELOC_32, R_ARC_32},
};
#undef ARC_RELOC_HOWTO

typedef ATTRIBUTE_UNUSED bfd_vma (*replace_func) (unsigned, int ATTRIBUTE_UNUSED);

#define ARC_RELOC_HOWTO(TYPE, VALUE, SIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \
  case TYPE: \
    func = (void *) RELOC_FUNCTION; \
    break;
static replace_func
get_replace_function (bfd *abfd, unsigned int r_type)
{
  void *func = NULL;

  switch (r_type)
    {
      #include "elf/arc-reloc.def"
    }

  if (func == replace_bits24 && bfd_big_endian (abfd))
    return (replace_func) replace_bits24_be;

  return (replace_func) func;
}
#undef ARC_RELOC_HOWTO

static reloc_howto_type *
arc_elf32_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
				 bfd_reloc_code_real_type code)
{
  unsigned int i;

  for (i = ARRAY_SIZE (arc_reloc_map); i--;)
    {
      if (arc_reloc_map[i].bfd_reloc_val == code)
	return arc_elf_howto (arc_reloc_map[i].elf_reloc_val);
    }

  return NULL;
}

/* Function to set the ELF flag bits.  */
static bfd_boolean
arc_elf_set_private_flags (bfd *abfd, flagword flags)
{
  elf_elfheader (abfd)->e_flags = flags;
  elf_flags_init (abfd) = TRUE;
  return TRUE;
}

/* Print private flags.  */
static bfd_boolean
arc_elf_print_private_bfd_data (bfd *abfd, void * 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:"), (unsigned long) flags);

  switch (flags & EF_ARC_MACH_MSK)
    {
    case EF_ARC_CPU_ARCV2HS : fprintf (file, " -mcpu=ARCv2HS");    break;
    case EF_ARC_CPU_ARCV2EM : fprintf (file, " -mcpu=ARCv2EM");    break;
    case E_ARC_MACH_ARC600  : fprintf (file, " -mcpu=ARC600");     break;
    case E_ARC_MACH_ARC601  : fprintf (file, " -mcpu=ARC601");     break;
    case E_ARC_MACH_ARC700  : fprintf (file, " -mcpu=ARC700");     break;
    default:
      fprintf (file, "-mcpu=unknown");
      break;
    }

  switch (flags & EF_ARC_OSABI_MSK)
    {
    case E_ARC_OSABI_ORIG : fprintf (file, " (ABI:legacy)"); break;
    case E_ARC_OSABI_V2   : fprintf (file, " (ABI:v2)");     break;
    case E_ARC_OSABI_V3   : fprintf (file, " (ABI:v3)");     break;
    default:
      fprintf (file, "(ABI:unknown)");
      break;
    }

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

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

static bfd_boolean
arc_elf_copy_private_bfd_data (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;

  /* Copy object attributes.  */
  _bfd_elf_copy_obj_attributes (ibfd, obfd);

  return _bfd_elf_copy_private_bfd_data (ibfd, obfd);
}

static reloc_howto_type *
bfd_elf32_bfd_reloc_name_lookup (bfd * abfd ATTRIBUTE_UNUSED,
				 const char *r_name)
{
  unsigned int i;

  for (i = 0; i < ARRAY_SIZE (elf_arc_howto_table); i++)
    if (elf_arc_howto_table[i].name != NULL
	&& strcasecmp (elf_arc_howto_table[i].name, r_name) == 0)
      return arc_elf_howto (i);

  return NULL;
}

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

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

  r_type = ELF32_R_TYPE (dst->r_info);
  BFD_ASSERT (r_type < (unsigned int) R_ARC_max);
  cache_ptr->howto = arc_elf_howto (r_type);
}

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

static bfd_boolean
arc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
{
  unsigned short mach_ibfd;
  static unsigned short mach_obfd = EM_NONE;
  flagword out_flags;
  flagword in_flags;
  asection *sec;

   /* Check if we have the same endianess.  */
  if (! _bfd_generic_verify_endian_match (ibfd, obfd))
    {
      _bfd_error_handler (_("ERROR: Endian Match failed. Attempting to link "
			    "%B with binary %s of opposite endian-ness"),
			  ibfd, bfd_get_filename (obfd));
      return FALSE;
    }

  /* Collect ELF flags.  */
  in_flags = elf_elfheader (ibfd)->e_flags & EF_ARC_MACH_MSK;
  out_flags = elf_elfheader (obfd)->e_flags & EF_ARC_MACH_MSK;

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

  if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
    return TRUE;

  /* Check to see if the input BFD actually contains any sections.  Do
     not short-circuit dynamic objects; their section list may be
     emptied by elf_link_add_object_symbols.  */
  if (!(ibfd->flags & DYNAMIC))
    {
      bfd_boolean null_input_bfd = TRUE;
      bfd_boolean only_data_sections = TRUE;

      for (sec = ibfd->sections; sec != NULL; sec = sec->next)
	{
	  if ((bfd_get_section_flags (ibfd, sec)
	       & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS))
	      == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS))
	    only_data_sections = FALSE;

	  null_input_bfd = FALSE;
	}

      if (null_input_bfd || only_data_sections)
	return TRUE;
    }

  /* Complain about various flag/architecture mismatches.  */
  mach_ibfd = elf_elfheader (ibfd)->e_machine;
  if (mach_obfd == EM_NONE)
    {
      mach_obfd = mach_ibfd;
    }
  else
    {
      if (mach_ibfd != mach_obfd)
	{
	  _bfd_error_handler (_("ERROR: Attempting to link %B "
				"with a binary %s of different architecture"),
			      ibfd, bfd_get_filename (obfd));
	  return FALSE;
	}
      else if (in_flags != out_flags)
	{
	  /* Warn if different flags.  */
	  (*_bfd_error_handler)
	    (_("%s: uses different e_flags (0x%lx) fields than "
	       "previous modules (0x%lx)"),
	     bfd_get_filename (ibfd), (long)in_flags, (long)out_flags);
	  if (in_flags && out_flags)
	    return FALSE;
	  /* MWDT doesnt set the eflags hence make sure we choose the
	     eflags set by gcc.  */
	  in_flags = in_flags > out_flags ? in_flags : out_flags;
	}
    }

  /* Update the flags.  */
  elf_elfheader (obfd)->e_flags = in_flags;

  if (bfd_get_mach (obfd) < bfd_get_mach (ibfd))
    {
      return bfd_set_arch_mach (obfd, bfd_arch_arc, bfd_get_mach (ibfd));
    }

  return TRUE;
}

/* Set the right machine number for an ARC ELF file.  */
static bfd_boolean
arc_elf_object_p (bfd * abfd)
{
  /* Make sure this is initialised, or you'll have the potential of passing
     garbage---or misleading values---into the call to
     bfd_default_set_arch_mach ().  */
  int		  mach = bfd_mach_arc_arc700;
  unsigned long   arch = elf_elfheader (abfd)->e_flags & EF_ARC_MACH_MSK;
  unsigned	  e_machine = elf_elfheader (abfd)->e_machine;

  if (e_machine == EM_ARC_COMPACT || e_machine == EM_ARC_COMPACT2)
    {
      switch (arch)
	{
	  case E_ARC_MACH_ARC600:
	    mach = bfd_mach_arc_arc600;
	    break;
	  case E_ARC_MACH_ARC601:
	    mach = bfd_mach_arc_arc601;
	    break;
	  case E_ARC_MACH_ARC700:
	    mach = bfd_mach_arc_arc700;
	    break;
	  case EF_ARC_CPU_ARCV2HS:
	  case EF_ARC_CPU_ARCV2EM:
	    mach = bfd_mach_arc_arcv2;
	    break;
	  default:
	    mach = (e_machine == EM_ARC_COMPACT)
	      ? bfd_mach_arc_arc700 : bfd_mach_arc_arcv2;
	    break;
	}
    }
  else
    {
      if (e_machine == EM_ARC)
	{
	  (*_bfd_error_handler)
	    (_("Error: The ARC4 architecture is no longer supported.\n"));
	  return FALSE;
	}
      else
	{
	  (*_bfd_error_handler)
	    (_("Warning: unset or old architecture flags. \n"
	       "	       Use default machine.\n"));
	}
    }

  return bfd_default_set_arch_mach (abfd, bfd_arch_arc, mach);
}

/* The final processing done just before writing out an ARC ELF object file.
   This gets the ARC architecture right based on the machine number.  */

static void
arc_elf_final_write_processing (bfd * abfd,
				bfd_boolean linker ATTRIBUTE_UNUSED)
{
  unsigned long emf;

  switch (bfd_get_mach (abfd))
    {
    case bfd_mach_arc_arc600:
      emf = EM_ARC_COMPACT;
      break;
    case bfd_mach_arc_arc601:
      emf = EM_ARC_COMPACT;
      break;
    case bfd_mach_arc_arc700:
      emf = EM_ARC_COMPACT;
      break;
    case bfd_mach_arc_arcv2:
      emf = EM_ARC_COMPACT2;
      break;
    default:
      goto DO_NOTHING;
    }

  elf_elfheader (abfd)->e_machine = emf;

  /* Record whatever is the current syscall ABI version.  */
  elf_elfheader (abfd)->e_flags |= E_ARC_OSABI_CURRENT;

DO_NOTHING:
  return;
}

#define BFD_DEBUG_PIC(...)


static void
debug_arc_reloc (struct arc_relocation_data reloc_data)
{
  PR_DEBUG ("Reloc type=%s, should_relocate = %s\n",
	   reloc_data.howto->name,
	   reloc_data.should_relocate ? "true" : "false");
  PR_DEBUG ("  offset = 0x%x, addend = 0x%x\n",
	   (unsigned int) reloc_data.reloc_offset,
	   (unsigned int) reloc_data.reloc_addend);
  PR_DEBUG (" Symbol:\n");
  PR_DEBUG ("  value = 0x%08x\n",
	   (unsigned int) reloc_data.sym_value);
  if (reloc_data.sym_section != NULL)
    {
      PR_DEBUG (" Symbol Section:\n");
      PR_DEBUG (
	       "  section name = %s, output_offset 0x%08x",
	       reloc_data.sym_section->name,
	       (unsigned int) reloc_data.sym_section->output_offset);
      if (reloc_data.sym_section->output_section != NULL)
	{
	  PR_DEBUG (
		   ", output_section->vma = 0x%08x",
		   ((unsigned int) reloc_data.sym_section->output_section->vma));
	}
      PR_DEBUG ( "\n");
      PR_DEBUG ("  file: %s\n", reloc_data.sym_section->owner->filename);
    }
  else
    {
      PR_DEBUG ( "  symbol section is NULL\n");
    }

  PR_DEBUG ( " Input_section:\n");
  if (reloc_data.input_section != NULL)
    {
      PR_DEBUG (
	       "  section name = %s, output_offset 0x%08x, output_section->vma = 0x%08x\n",
	       reloc_data.input_section->name,
	       (unsigned int) reloc_data.input_section->output_offset,
	       (unsigned int) reloc_data.input_section->output_section->vma);
      PR_DEBUG ( "  changed_address = 0x%08x\n",
	       (unsigned int) (reloc_data.input_section->output_section->vma
	       + reloc_data.input_section->output_offset
	       + reloc_data.reloc_offset));
      PR_DEBUG ("  file: %s\n", reloc_data.input_section->owner->filename);
    }
  else
    {
      PR_DEBUG ( "	input section is NULL\n");
    }
}

static bfd_vma
middle_endian_convert (bfd_vma insn, bfd_boolean do_it)
{
  if (do_it)
    {
      insn
	= ((insn & 0xffff0000) >> 16)
	  | ((insn & 0xffff) << 16);
    }
  return insn;
}

/* This function is called for relocations that are otherwise marked as NOT
   requiring overflow checks.  In here we perform non-standard checks of
   the relocation value.  */

static inline bfd_reloc_status_type
arc_special_overflow_checks (const struct arc_relocation_data reloc_data,
			     bfd_signed_vma relocation,
			     struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
  switch (reloc_data.howto->type)
    {
    case R_ARC_NPS_CMEM16:
      if (((relocation >> 16) & 0xffff) != NPS_CMEM_HIGH_VALUE)
	{
	  if (reloc_data.reloc_addend == 0)
	    (*_bfd_error_handler)
	      (_("%B(%A+0x%lx): CMEM relocation to `%s' is invalid, "
		 "16 MSB should be 0x%04x (value is 0x%lx)"),
	       reloc_data.input_section->owner,
	       reloc_data.input_section,
	       reloc_data.reloc_offset,
	       reloc_data.symbol_name,
	       NPS_CMEM_HIGH_VALUE,
	       (relocation));
	  else
	    (*_bfd_error_handler)
	      (_("%B(%A+0x%lx): CMEM relocation to `%s+0x%lx' is invalid, "
		 "16 MSB should be 0x%04x (value is 0x%lx)"),
	       reloc_data.input_section->owner,
	       reloc_data.input_section,
	       reloc_data.reloc_offset,
	       reloc_data.symbol_name,
	       reloc_data.reloc_addend,
	       NPS_CMEM_HIGH_VALUE,
	       (relocation));
	  return bfd_reloc_overflow;
	}
      break;

    default:
      break;
    }

  return bfd_reloc_ok;
}

#define ME(reloc) (reloc)

#define IS_ME(FORMULA,BFD) ((strstr (FORMULA, "ME") != NULL) \
			    && (!bfd_big_endian (BFD)))

#define S ((bfd_signed_vma) (reloc_data.sym_value			\
	   + (reloc_data.sym_section->output_section != NULL ?		\
	      (reloc_data.sym_section->output_offset			\
	       + reloc_data.sym_section->output_section->vma) : 0)))
#define L ((bfd_signed_vma) (reloc_data.sym_value			\
	   + (reloc_data.sym_section->output_section != NULL ?		\
	      (reloc_data.sym_section->output_offset			\
	      + reloc_data.sym_section->output_section->vma) : 0)))
#define A (reloc_data.reloc_addend)
#define B (0)
#define G (reloc_data.got_offset_value)
#define GOT (reloc_data.got_symbol_vma)
#define GOT_BEGIN (htab->sgot->output_section->vma)

#define MES (0)
	/* P: relative offset to PCL The offset should be to the
	  current location aligned to 32 bits.  */
#define P ((bfd_signed_vma) (						\
	   (								\
	    (reloc_data.input_section->output_section != NULL ?		\
	     reloc_data.input_section->output_section->vma : 0)		\
	    + reloc_data.input_section->output_offset			\
	    + (reloc_data.reloc_offset - (bitsize >= 32 ? 4 : 0)))	\
	   & ~0x3))
#define PDATA ((bfd_signed_vma) ( \
	    (reloc_data.input_section->output_section->vma \
	     + reloc_data.input_section->output_offset \
	     + (reloc_data.reloc_offset))))
#define SECTSTART (bfd_signed_vma) (reloc_data.sym_section->output_section->vma \
				    + reloc_data.sym_section->output_offset)

#define _SDA_BASE_ (bfd_signed_vma) (reloc_data.sdata_begin_symbol_vma)
#define TLS_REL (bfd_signed_vma) \
  ((elf_hash_table (info))->tls_sec->output_section->vma)
#define TLS_TBSS (8)
#define TCB_SIZE (8)

#define none (0)

#define PRINT_DEBUG_RELOC_INFO_BEFORE(FORMULA, TYPE) \
    {\
      asection *sym_section = reloc_data.sym_section; \
      asection *input_section = reloc_data.input_section; \
      ARC_DEBUG ("RELOC_TYPE = " TYPE "\n"); \
      ARC_DEBUG ("FORMULA = " FORMULA "\n"); \
      ARC_DEBUG ("S = 0x%x\n", S); \
      ARC_DEBUG ("A = 0x%x\n", A); \
      ARC_DEBUG ("L = 0x%x\n", L); \
      if (sym_section->output_section != NULL) \
	{ \
	  ARC_DEBUG ("symbol_section->vma = 0x%x\n", \
	     sym_section->output_section->vma + sym_section->output_offset); \
	} \
      else \
	{ \
	  ARC_DEBUG ("symbol_section->vma = NULL\n"); \
	} \
      if (input_section->output_section != NULL) \
	{ \
	  ARC_DEBUG ("symbol_section->vma = 0x%x\n", \
	     input_section->output_section->vma + input_section->output_offset); \
	} \
      else \
	{ \
	  ARC_DEBUG ("symbol_section->vma = NULL\n"); \
	} \
      ARC_DEBUG ("PCL = 0x%x\n", P); \
      ARC_DEBUG ("P = 0x%x\n", P); \
      ARC_DEBUG ("G = 0x%x\n", G); \
      ARC_DEBUG ("SDA_OFFSET = 0x%x\n", _SDA_BASE_); \
      ARC_DEBUG ("SDA_SET = %d\n", reloc_data.sdata_begin_symbol_vma_set); \
      ARC_DEBUG ("GOT_OFFSET = 0x%x\n", GOT); \
      ARC_DEBUG ("relocation = 0x%08x\n", relocation); \
      ARC_DEBUG ("before = 0x%08x\n", (unsigned int) insn); \
      ARC_DEBUG ("data   = 0x%08x (%u) (%d)\n", (unsigned int) relocation, (unsigned int) relocation, (int) relocation); \
    }

#define PRINT_DEBUG_RELOC_INFO_AFTER \
    { \
      ARC_DEBUG ("after  = 0x%08x\n", (unsigned int) insn); \
    }

#define ARC_RELOC_HOWTO(TYPE, VALUE, SIZE, BITSIZE, RELOC_FUNCTION, OVERFLOW, FORMULA) \
  case R_##TYPE: \
    { \
      bfd_signed_vma bitsize ATTRIBUTE_UNUSED = BITSIZE; \
      relocation = FORMULA  ; \
      PRINT_DEBUG_RELOC_INFO_BEFORE (#FORMULA, #TYPE); \
      insn = middle_endian_convert (insn, IS_ME (#FORMULA, abfd)); \
      insn = (* get_replace_function (abfd, TYPE)) (insn, relocation); \
      insn = middle_endian_convert (insn, IS_ME (#FORMULA, abfd)); \
      PRINT_DEBUG_RELOC_INFO_AFTER \
    } \
    break;

static bfd_reloc_status_type
arc_do_relocation (bfd_byte * contents,
		   struct arc_relocation_data reloc_data,
		   struct bfd_link_info *info)
{
  bfd_signed_vma relocation = 0;
  bfd_vma insn;
  bfd_vma orig_insn ATTRIBUTE_UNUSED;
  bfd * abfd = reloc_data.input_section->owner;
  struct elf_link_hash_table *htab ATTRIBUTE_UNUSED = elf_hash_table (info);
  bfd_reloc_status_type flag;

  if (reloc_data.should_relocate == FALSE)
    return bfd_reloc_ok;

  switch (reloc_data.howto->size)
    {
      case 2:
	insn = arc_bfd_get_32 (abfd,
			       contents + reloc_data.reloc_offset,
			       reloc_data.input_section);
	break;
      case 1:
	insn = arc_bfd_get_16 (abfd,
			       contents + reloc_data.reloc_offset,
			       reloc_data.input_section);
	break;
      case 0:
	insn = arc_bfd_get_8 (abfd,
			       contents + reloc_data.reloc_offset,
			       reloc_data.input_section);
	break;
      default:
	insn = 0;
	BFD_ASSERT (0);
	break;
    }

  orig_insn = insn;

  switch (reloc_data.howto->type)
    {
#include "elf/arc-reloc.def"

      default:
	BFD_ASSERT (0);
	break;
    }

  /* Check for relocation overflow.  */
  if (reloc_data.howto->complain_on_overflow != complain_overflow_dont)
    flag = bfd_check_overflow (reloc_data.howto->complain_on_overflow,
			       reloc_data.howto->bitsize,
			       reloc_data.howto->rightshift,
			       bfd_arch_bits_per_address (abfd),
			       relocation);
  else
    flag = arc_special_overflow_checks (reloc_data, relocation, info);

#undef  DEBUG_ARC_RELOC
#define DEBUG_ARC_RELOC(A) debug_arc_reloc (A)
  if (flag != bfd_reloc_ok)
    {
      PR_DEBUG ( "Relocation overflows !!!!\n");

      DEBUG_ARC_RELOC (reloc_data);

      PR_DEBUG (
		"Relocation value = signed -> %d, unsigned -> %u"
		", hex -> (0x%08x)\n",
		(int) relocation,
		(unsigned int) relocation,
		(unsigned int) relocation);
      return flag;
    }
#undef  DEBUG_ARC_RELOC
#define DEBUG_ARC_RELOC(A)

  /* Write updated instruction back to memory.  */
  switch (reloc_data.howto->size)
    {
      case 2:
	arc_bfd_put_32 (abfd, insn,
		       contents + reloc_data.reloc_offset,
		       reloc_data.input_section);
	break;
      case 1:
	arc_bfd_put_16 (abfd, insn,
		       contents + reloc_data.reloc_offset,
		       reloc_data.input_section);
	break;
      case 0:
	arc_bfd_put_8 (abfd, insn,
		       contents + reloc_data.reloc_offset,
		       reloc_data.input_section);
	break;
      default:
	ARC_DEBUG ("size = %d\n", reloc_data.howto->size);
	BFD_ASSERT (0);
	break;
    }

  return bfd_reloc_ok;
}
#undef S
#undef A
#undef B
#undef G
#undef GOT
#undef L
#undef MES
#undef P
#undef SECTSTAR
#undef SECTSTART
#undef _SDA_BASE_
#undef none

#undef ARC_RELOC_HOWTO


/* Relocate an arc ELF section.
   Function : elf_arc_relocate_section
   Brief    : Relocate an arc section, by handling all the relocations
	     appearing in that section.
   Args     : output_bfd    : The bfd being written to.
	      info	    : Link information.
	      input_bfd     : The input bfd.
	      input_section : The section being relocated.
	      contents	    : contents of the section being relocated.
	      relocs	    : List of relocations in the section.
	      local_syms    : is a pointer to the swapped in local symbols.
	      local_section : is an array giving the section in the input file
			      corresponding to the st_shndx field of each
			      local symbol.  */
static bfd_boolean
elf_arc_relocate_section (bfd *		   output_bfd,
			  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 *	   wrel;
  Elf_Internal_Rela *	   relend;
  struct elf_link_hash_table *htab = elf_hash_table (info);

  symtab_hdr = &((elf_tdata (input_bfd))->symtab_hdr);
  sym_hashes = elf_sym_hashes (input_bfd);

  rel = wrel = relocs;
  relend = relocs + input_section->reloc_count;
  for (; rel < relend; wrel++, rel++)
    {
      enum elf_arc_reloc_type       r_type;
      reloc_howto_type *	    howto;
      unsigned long		 r_symndx;
      struct elf_link_hash_entry *  h;
      Elf_Internal_Sym *	    sym;
      asection *		    sec;
      struct elf_link_hash_entry *h2;

      struct arc_relocation_data reloc_data =
      {
	.reloc_offset = 0,
	.reloc_addend = 0,
	.got_offset_value = 0,
	.sym_value = 0,	
	.sym_section = NULL,
	.howto = NULL,
	.input_section = NULL,
	.sdata_begin_symbol_vma = 0,
	.sdata_begin_symbol_vma_set = FALSE,
	.got_symbol_vma = 0,
	.should_relocate = FALSE
      };

      r_type = ELF32_R_TYPE (rel->r_info);

      if (r_type >= (int) R_ARC_max)
	{
	  bfd_set_error (bfd_error_bad_value);
	  return FALSE;
	}
      howto = arc_elf_howto (r_type);

      r_symndx = ELF32_R_SYM (rel->r_info);

      /* If we are generating another .o file and the symbol in not
	 local, skip this relocation.  */
      if (bfd_link_relocatable (info))
	{
	  /* This is a relocateable link.  We don't have to change
	     anything, unless the reloc is against a section symbol,
	     in which case we have to adjust according to where the
	     section symbol winds up in the output section.  */

	  /* Checks if this is a local symbol and thus the reloc
	     might (will??) be against a section symbol.  */
	  if (r_symndx < symtab_hdr->sh_info)
	    {
	      sym = local_syms + r_symndx;
	      if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
		{
		  sec = local_sections[r_symndx];

		  /* for RELA relocs.Just adjust the addend
		     value in the relocation entry.  */
		  rel->r_addend += sec->output_offset + sym->st_value;

		  BFD_DEBUG_PIC (
		    PR_DEBUG ("local symbols reloc "
			      "(section=%d %s) seen in %s\n",
			      r_symndx,
			      local_sections[r_symndx]->name,
			      __PRETTY_FUNCTION__)
		  );
		}
	    }
	}

      h2 = elf_link_hash_lookup (elf_hash_table (info), "__SDATA_BEGIN__",
				 FALSE, FALSE, TRUE);

      if (reloc_data.sdata_begin_symbol_vma_set == FALSE
	    && h2 != NULL && h2->root.type != bfd_link_hash_undefined
	    && h2->root.u.def.section->output_section != NULL)
	/* TODO: Verify this condition.  */
	{
	  reloc_data.sdata_begin_symbol_vma =
	    (h2->root.u.def.value
	     + h2->root.u.def.section->output_section->vma);
	  reloc_data.sdata_begin_symbol_vma_set = TRUE;
	}

      reloc_data.input_section = input_section;
      reloc_data.howto = howto;
      reloc_data.reloc_offset = rel->r_offset;
      reloc_data.reloc_addend = rel->r_addend;

      /* This is a final link.  */
      h = NULL;
      sym = NULL;
      sec = NULL;

      if (r_symndx < symtab_hdr->sh_info) /* A local symbol.  */
	{
	  sym = local_syms + r_symndx;
	  sec = local_sections[r_symndx];
	}
      else
	{
	  /* TODO: This code is repeated from below.  We should
	     clean it and remove duplications.
	     Sec is used check for discarded sections.
	     Need to redesign code below.  */

	  /* Get the symbol's entry in the symtab.  */
	  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;

	  /* If we have encountered a definition for this symbol.  */
	  if (h->root.type == bfd_link_hash_defined
	      || h->root.type == bfd_link_hash_defweak)
	    {
	      reloc_data.sym_value = h->root.u.def.value;
	      sec = h->root.u.def.section;
	    }
	}

      /* Clean relocs for symbols in discarded sections.  */
      if (sec != NULL && discarded_section (sec))
	{
	  _bfd_clear_contents (howto, input_bfd, input_section,
			       contents + rel->r_offset);
	  rel->r_offset = rel->r_offset;
	  rel->r_info = 0;
	  rel->r_addend = 0;

	  /* For ld -r, remove relocations in debug sections against
	     sections defined in discarded sections.  Not done for
	     eh_frame editing code expects to be present.  */
	   if (bfd_link_relocatable (info)
	       && (input_section->flags & SEC_DEBUGGING))
	     wrel--;

	  continue;
	}

      if (bfd_link_relocatable (info))
	{
	  if (wrel != rel)
	    *wrel = *rel;
	  continue;
	}

      if (r_symndx < symtab_hdr->sh_info) /* A local symbol.  */
	{
	  reloc_data.sym_value = sym->st_value;
	  reloc_data.sym_section = sec;
	  reloc_data.symbol_name =
	    bfd_elf_string_from_elf_section (input_bfd,
					     symtab_hdr->sh_link,
					     sym->st_name);

	  /* Mergeable section handling.  */
	  if ((sec->flags & SEC_MERGE)
	      && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
	    {
	      asection *msec;
	      msec = sec;
	      rel->r_addend = _bfd_elf_rel_local_sym (output_bfd, sym,
						      &msec, rel->r_addend);
	      rel->r_addend -= (sec->output_section->vma
				+ sec->output_offset
				+ sym->st_value);
	      rel->r_addend += msec->output_section->vma + msec->output_offset;

	      reloc_data.reloc_addend = rel->r_addend;
	    }

	  BFD_ASSERT (htab->sgot != NULL || !is_reloc_for_GOT (howto));
	  if (htab->sgot != NULL)
	    reloc_data.got_symbol_vma = htab->sgot->output_section->vma
					+ htab->sgot->output_offset;

	  reloc_data.should_relocate = TRUE;
	}
      else /* Global symbol.  */
	{
	  /* Get the symbol's entry in the symtab.  */
	  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;

	  /* TODO: Need to validate what was the intention.  */
	  /* BFD_ASSERT ((h->dynindx == -1) || (h->forced_local != 0)); */
	  reloc_data.symbol_name = h->root.root.string;

	  /* If we have encountered a definition for this symbol.  */
	  if (h->root.type == bfd_link_hash_defined
	      || h->root.type == bfd_link_hash_defweak)
	    {
	      reloc_data.sym_value = h->root.u.def.value;
	      reloc_data.sym_section = h->root.u.def.section;

	      reloc_data.should_relocate = TRUE;

	      if (is_reloc_for_GOT (howto) && !bfd_link_pic (info))
		{
		  /* TODO: Change it to use arc_do_relocation with
		    ARC_32 reloc.  Try to use ADD_RELA macro.  */
		  bfd_vma relocation =
		    reloc_data.sym_value + reloc_data.reloc_addend
		    + (reloc_data.sym_section->output_section != NULL ?
			(reloc_data.sym_section->output_offset
			 + reloc_data.sym_section->output_section->vma)
		      : 0);

		  BFD_ASSERT (h->got.glist);
		  bfd_vma got_offset = h->got.glist->offset;
		  bfd_put_32 (output_bfd, relocation,
			      htab->sgot->contents + got_offset);
		}
	      if (is_reloc_for_PLT (howto) && h->plt.offset != (bfd_vma) -1)
		{
		  /* TODO: This is repeated up here.  */
		  reloc_data.sym_value = h->plt.offset;
		  reloc_data.sym_section = htab->splt;
		}
	    }
	  else if (h->root.type == bfd_link_hash_undefweak)
	    {
	      /* Is weak symbol and has no definition.  */
	      if (is_reloc_for_GOT (howto))
		{
		  reloc_data.sym_value = h->root.u.def.value;
		  reloc_data.sym_section = htab->sgot;
		  reloc_data.should_relocate = TRUE;
		}
	      else if (is_reloc_for_PLT (howto)
		       && h->plt.offset != (bfd_vma) -1)
		{
		  /* TODO: This is repeated up here.  */
		  reloc_data.sym_value = h->plt.offset;
		  reloc_data.sym_section = htab->splt;
		  reloc_data.should_relocate = TRUE;
		}
	      else
		continue;
	    }
	  else
	    {
	      if (is_reloc_for_GOT (howto))
		{
		  reloc_data.sym_value = h->root.u.def.value;
		  reloc_data.sym_section = htab->sgot;

		  reloc_data.should_relocate = TRUE;
		}
	      else if (is_reloc_for_PLT (howto))
		{
		  /* Fail if it is linking for PIE and the symbol is
		     undefined.  */
		  if (bfd_link_executable (info))
		    (*info->callbacks->undefined_symbol)
		      (info, h->root.root.string, input_bfd, input_section,
		       rel->r_offset, TRUE);
		  reloc_data.sym_value = h->plt.offset;
		  reloc_data.sym_section = htab->splt;

		  reloc_data.should_relocate = TRUE;
		}
	      else if (!bfd_link_pic (info))
		(*info->callbacks->undefined_symbol)
		  (info, h->root.root.string, input_bfd, input_section,
		   rel->r_offset, TRUE);
	    }

	  BFD_ASSERT (htab->sgot != NULL || !is_reloc_for_GOT (howto));
	  if (htab->sgot != NULL)
	    reloc_data.got_symbol_vma = htab->sgot->output_section->vma
					+ htab->sgot->output_offset;
	}

      if ((is_reloc_for_GOT (howto)
	   || is_reloc_for_TLS (howto)))
	{
	  struct got_entry **list
	    = get_got_entry_list_for_symbol (output_bfd, r_symndx, h);

	  reloc_data.got_offset_value
	    = relocate_fix_got_relocs_for_got_info (list,
						    tls_type_for_reloc (howto),
						    info,
						    output_bfd,
						    r_symndx,
						    local_syms,
						    local_sections,
						    h,
						    &reloc_data);

	  if (h == NULL)
	    {
	      create_got_dynrelocs_for_single_entry (
		  got_entry_for_type (list,
		      		arc_got_entry_type_for_reloc (howto)),
		  output_bfd, info, NULL);
	    }
	}
      switch (r_type)
	{
	  case R_ARC_32:
	  case R_ARC_32_ME:
	  case R_ARC_PC32:
	  case R_ARC_32_PCREL:
	    if ((bfd_link_pic (info))// || bfd_link_pie (info))
		&& ((r_type != R_ARC_PC32 && r_type != R_ARC_32_PCREL)
		    || (h != NULL
			&& h->dynindx != -1
			&& (!info->symbolic || !h->def_regular))))
	      {
		Elf_Internal_Rela outrel;
		bfd_byte *loc;
		bfd_boolean skip = FALSE;
		bfd_boolean relocate = FALSE;
		asection *sreloc = _bfd_elf_get_dynamic_reloc_section
				 (input_bfd, input_section,
				  /*RELA*/ TRUE);

		BFD_ASSERT (sreloc != NULL);

		outrel.r_offset = _bfd_elf_section_offset (output_bfd,
							   info,
							   input_section,
							   rel->r_offset);
		if (outrel.r_offset == (bfd_vma) -1)
		  skip = TRUE;

		outrel.r_addend = rel->r_addend;
		outrel.r_offset += (input_section->output_section->vma
				    + input_section->output_offset);

#define IS_ARC_PCREL_TYPE(TYPE) \
  (   (TYPE == R_ARC_PC32) \
   || (TYPE == R_ARC_32_PCREL))
		if (skip)
		  {
		    memset (&outrel, 0, sizeof outrel);
		    relocate = FALSE;
		  }
		else if (h != NULL
			 && h->dynindx != -1
			 && ((IS_ARC_PCREL_TYPE (r_type))
			 || !(bfd_link_executable (info)
			      || SYMBOLIC_BIND (info, h))
			 || ! h->def_regular))
		  {
		    BFD_ASSERT (h != NULL);
		    if ((input_section->flags & SEC_ALLOC) != 0)
		      relocate = FALSE;
		    else
		      relocate = TRUE;

		    BFD_ASSERT (h->dynindx != -1);
		    outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
		  }
		else
		  {
		    /* Handle local symbols, they either do not have a
		       global hash table entry (h == NULL), or are
		       forced local due to a version script
		       (h->forced_local), or the third condition is
		       legacy, it appears to say something like, for
		       links where we are pre-binding the symbols, or
		       there's not an entry for this symbol in the
		       dynamic symbol table, and it's a regular symbol
		       not defined in a shared object, then treat the
		       symbol as local, resolve it now.  */
		    relocate = TRUE;
		    /* outrel.r_addend = 0; */
		    outrel.r_info = ELF32_R_INFO (0, R_ARC_RELATIVE);
		  }

		BFD_ASSERT (sreloc->contents != 0);

		loc = sreloc->contents;
		loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
		sreloc->reloc_count += 1;

		bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);

		if (relocate == FALSE)
		  continue;
	      }
	    break;
	  default:
	    break;
	}

      if (is_reloc_SDA_relative (howto)
	  && (reloc_data.sdata_begin_symbol_vma_set == FALSE))
	{
	  (*_bfd_error_handler)
	      ("Error: Linker symbol __SDATA_BEGIN__ not found");
	  bfd_set_error (bfd_error_bad_value);
	  return FALSE;
	}

      DEBUG_ARC_RELOC (reloc_data);

      /* Make sure we have with a dynamic linker.  In case of GOT and PLT
	 the sym_section should point to .got or .plt respectively.  */
      if ((is_reloc_for_GOT (howto) || is_reloc_for_PLT (howto))
	  && reloc_data.sym_section == NULL)
	{
	  (*_bfd_error_handler)
	    (_("GOT and PLT relocations cannot be fixed with a non dynamic linker."));
	  bfd_set_error (bfd_error_bad_value);
	  return FALSE;
	}

      if (arc_do_relocation (contents, reloc_data, info) != bfd_reloc_ok)
	return FALSE;
    }

  return TRUE;
}

static struct dynamic_sections
arc_create_dynamic_sections (bfd * abfd, struct bfd_link_info *info)
{
  struct elf_link_hash_table *htab;
  bfd	 *dynobj;
  struct dynamic_sections ds =
    {
      .initialized = FALSE,
      .sgot = NULL,
      .srelgot = NULL,
      .sgotplt = NULL,
      .srelgotplt = NULL,
      .sdyn = NULL,
      .splt = NULL,
      .srelplt = NULL
    };

  htab = elf_hash_table (info);
  BFD_ASSERT (htab);

  /* Create dynamic sections for relocatable executables so that we
     can copy relocations.  */
  if (! htab->dynamic_sections_created && bfd_link_pic (info))
    {
      if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
	BFD_ASSERT (0);
    }

  dynobj = (elf_hash_table (info))->dynobj;

  if (dynobj)
    {
      ds.sgot = htab->sgot;
      ds.srelgot = htab->srelgot;

      ds.sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
      ds.srelgotplt = ds.srelplt;

      ds.splt = bfd_get_section_by_name (dynobj, ".plt");
      ds.srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
    }

  if (htab->dynamic_sections_created)
    {
      ds.sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
    }

  ds.initialized = TRUE;

  return ds;
}

static bfd_boolean
elf_arc_check_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;
  const Elf_Internal_Rela *	rel;
  const Elf_Internal_Rela *	rel_end;
  bfd *				dynobj;
  asection *			sreloc = NULL;

  if (bfd_link_relocatable (info))
    return TRUE;

  dynobj = (elf_hash_table (info))->dynobj;
  symtab_hdr = &((elf_tdata (abfd))->symtab_hdr);
  sym_hashes = elf_sym_hashes (abfd);

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

      r_type = ELF32_R_TYPE (rel->r_info);

      if (r_type >= (int) R_ARC_max)
	{
	  bfd_set_error (bfd_error_bad_value);
	  return FALSE;
	}
      howto = arc_elf_howto (r_type);

      if (dynobj == NULL
	  && (is_reloc_for_GOT (howto) == TRUE
	      || is_reloc_for_TLS (howto) == TRUE))
	{
	  dynobj = elf_hash_table (info)->dynobj = abfd;
	  if (! _bfd_elf_create_got_section (abfd, info))
	    return FALSE;
	}

      /* Load symbol information.  */
      r_symndx = ELF32_R_SYM (rel->r_info);
      if (r_symndx < symtab_hdr->sh_info) /* Is a local symbol.  */
	h = NULL;
      else /* Global one.  */
	h = sym_hashes[r_symndx - symtab_hdr->sh_info];

      switch (r_type)
	{
	  case R_ARC_32:
	  case R_ARC_32_ME:
	    /* During shared library creation, these relocs should not
	       appear in a shared library (as memory will be read only
	       and the dynamic linker can not resolve these.  However
	       the error should not occur for e.g. debugging or
	       non-readonly sections.  */
	    if ((bfd_link_dll (info) && !bfd_link_pie (info))
		&& (sec->flags & SEC_ALLOC) != 0
		&& (sec->flags & SEC_READONLY) != 0
		&& ((sec->flags & SEC_CODE) != 0
		    || (sec->flags & SEC_DEBUGGING) != 0))
	      {
		const char *name;
		if (h)
		  name = h->root.root.string;
		else
		  /* bfd_elf_sym_name (abfd, symtab_hdr, isym, NULL);  */
		  name = "UNKNOWN";
		(*_bfd_error_handler)
		  (_("\
%B: relocation %s against `%s' can not be used when making a shared object; recompile with -fPIC"),
		    abfd,
		    arc_elf_howto (r_type)->name,
		    name);
		bfd_set_error (bfd_error_bad_value);
		return FALSE;
	      }

	    /* In some cases we are not setting the 'non_got_ref'
	       flag, even though the relocations don't require a GOT
	       access.  We should extend the testing in this area to
	       ensure that no significant cases are being missed.  */
	    if (h)
	      h->non_got_ref = 1;
	    /* FALLTHROUGH */
	  case R_ARC_PC32:
	  case R_ARC_32_PCREL:
	    if ((bfd_link_pic (info))// || bfd_link_pie (info))
		&& ((r_type != R_ARC_PC32 && r_type != R_ARC_32_PCREL)
		    || (h != NULL
			&& h->dynindx != -1
			&& (!info->symbolic || !h->def_regular))))
	      {
		if (sreloc == NULL)
		  {
		    sreloc = _bfd_elf_make_dynamic_reloc_section (sec, dynobj,
								  2, abfd,
								  /*rela*/
								  TRUE);

		    if (sreloc == NULL)
		      return FALSE;
		  }
		sreloc->size += sizeof (Elf32_External_Rela);

	      }
	  default:
	    break;
	}

      if (is_reloc_for_PLT (howto) == TRUE)
	{
	  if (h == NULL)
	    continue;
	  else
	    h->needs_plt = 1;
	}

      /* Add info to the symbol got_entry_list.  */
      if (is_reloc_for_GOT (howto) == TRUE
	  || is_reloc_for_TLS (howto) == TRUE)
	{
	  arc_fill_got_info_for_reloc (
		  arc_got_entry_type_for_reloc (howto),
		  get_got_entry_list_for_symbol (abfd, r_symndx, h),
		  info,
		  h);
	}
    }

  return TRUE;
}

#define ELF_DYNAMIC_INTERPRETER  "/sbin/ld-uClibc.so"

static struct plt_version_t *
arc_get_plt_version (struct bfd_link_info *info)
{
  int i;

  for (i = 0; i < 1; i++)
    {
      ARC_DEBUG ("%d: size1 = %d, size2 = %d\n", i,
		 plt_versions[i].entry_size,
		 plt_versions[i].elem_size);
    }

  if (bfd_get_mach (info->output_bfd) == bfd_mach_arc_arcv2)
    {
      if (bfd_link_pic (info))
	return &(plt_versions[ELF_ARCV2_PIC]);
      else
	return &(plt_versions[ELF_ARCV2_ABS]);
    }
  else
    {
      if (bfd_link_pic (info))
	return &(plt_versions[ELF_ARC_PIC]);
      else
	return &(plt_versions[ELF_ARC_ABS]);
    }
}

static bfd_vma
add_symbol_to_plt (struct bfd_link_info *info)
{
  struct elf_link_hash_table *htab = elf_hash_table (info);
  bfd_vma ret;

  struct plt_version_t *plt_data = arc_get_plt_version (info);

  /* If this is the first .plt entry, make room for the special first
     entry.  */
  if (htab->splt->size == 0)
    htab->splt->size += plt_data->entry_size;

  ret = htab->splt->size;

  htab->splt->size += plt_data->elem_size;
  ARC_DEBUG ("PLT_SIZE = %d\n", htab->splt->size);

  htab->sgotplt->size += 4;
  htab->srelplt->size += sizeof (Elf32_External_Rela);

  return ret;
}

#define PLT_DO_RELOCS_FOR_ENTRY(ABFD, DS, RELOCS)	\
  plt_do_relocs_for_symbol (ABFD, DS, RELOCS, 0, 0)

static void
plt_do_relocs_for_symbol (bfd *abfd,
			  struct elf_link_hash_table *htab,
			  const struct plt_reloc *reloc,
			  bfd_vma plt_offset,
			  bfd_vma symbol_got_offset)
{
  while (SYM_ONLY (reloc->symbol) != LAST_RELOC)
    {
      bfd_vma relocation = 0;

      switch (SYM_ONLY (reloc->symbol))
	{
	  case SGOT:
		relocation
		  = htab->sgotplt->output_section->vma
		    + htab->sgotplt->output_offset + symbol_got_offset;
		break;
	}
      relocation += reloc->addend;

      if (IS_RELATIVE (reloc->symbol))
	{
	  bfd_vma reloc_offset = reloc->offset;
	  reloc_offset -= (IS_INSN_32 (reloc->symbol)) ? 4 : 0;
	  reloc_offset -= (IS_INSN_24 (reloc->symbol)) ? 2 : 0;

	  relocation -= htab->splt->output_section->vma
			 + htab->splt->output_offset
			 + plt_offset + reloc_offset;
	}

      /* TODO: being ME is not a property of the relocation but of the
	 section of which is applying the relocation. */
      if (IS_MIDDLE_ENDIAN (reloc->symbol) && !bfd_big_endian (abfd))
	{
	  relocation
	    = ((relocation & 0xffff0000) >> 16)
	      | ((relocation & 0xffff) << 16);
	}

      switch (reloc->size)
	{
	  case 32:
	    bfd_put_32 (htab->splt->output_section->owner,
			relocation,
			htab->splt->contents + plt_offset + reloc->offset);
	    break;
	}

      reloc = &(reloc[1]); /* Jump to next relocation.  */
    }
}

static void
relocate_plt_for_symbol (bfd *output_bfd,
			 struct bfd_link_info *info,
			 struct elf_link_hash_entry *h)
{
  struct plt_version_t *plt_data = arc_get_plt_version (info);
  struct elf_link_hash_table *htab = elf_hash_table (info);

  bfd_vma plt_index = (h->plt.offset  - plt_data->entry_size)
		      / plt_data->elem_size;
  bfd_vma got_offset = (plt_index + 3) * 4;

  ARC_DEBUG ("arc_info: PLT_OFFSET = 0x%x, PLT_ENTRY_VMA = 0x%x, \
GOT_ENTRY_OFFSET = 0x%x, GOT_ENTRY_VMA = 0x%x, for symbol %s\n",
	     h->plt.offset,
	     htab->splt->output_section->vma
	     + htab->splt->output_offset
	     + h->plt.offset,
	     got_offset,
	     htab->sgotplt->output_section->vma
	     + htab->sgotplt->output_offset
	     + got_offset,
	     h->root.root.string);


  {
    bfd_vma i = 0;
    uint16_t *ptr = (uint16_t *) plt_data->elem;
    for (i = 0; i < plt_data->elem_size/2; i++)
      {
	uint16_t data = ptr[i];
	bfd_put_16 (output_bfd,
		    (bfd_vma) data,
		    htab->splt->contents + h->plt.offset + (i*2));
      }
  }

  plt_do_relocs_for_symbol (output_bfd, htab,
			    plt_data->elem_relocs,
			    h->plt.offset,
			    got_offset);

  /* Fill in the entry in the global offset table.  */
  bfd_put_32 (output_bfd,
	      (bfd_vma) (htab->splt->output_section->vma
			 + htab->splt->output_offset),
	      htab->sgotplt->contents + got_offset);

  /* TODO: Fill in the entry in the .rela.plt section.  */
  {
    Elf_Internal_Rela rel;
    bfd_byte *loc;

    rel.r_offset = (htab->sgotplt->output_section->vma
		    + htab->sgotplt->output_offset
		    + got_offset);
    rel.r_addend = 0;

    BFD_ASSERT (h->dynindx != -1);
    rel.r_info = ELF32_R_INFO (h->dynindx, R_ARC_JMP_SLOT);

    loc = htab->srelplt->contents;
    loc += plt_index * sizeof (Elf32_External_Rela); /* relA */
    bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
  }
}

static void
relocate_plt_for_entry (bfd *abfd,
			struct bfd_link_info *info)
{
  struct plt_version_t *plt_data = arc_get_plt_version (info);
  struct elf_link_hash_table *htab = elf_hash_table (info);

  {
    bfd_vma i = 0;
    uint16_t *ptr = (uint16_t *) plt_data->entry;
    for (i = 0; i < plt_data->entry_size/2; i++)
      {
	uint16_t data = ptr[i];
	bfd_put_16 (abfd,
		    (bfd_vma) data,
		    htab->splt->contents + (i*2));
      }
  }
  PLT_DO_RELOCS_FOR_ENTRY (abfd, htab, plt_data->entry_relocs);
}

/* Desc : Adjust a symbol defined by a dynamic object and referenced
   by a regular object.  The current definition is in some section of
   the dynamic object, but we're not including those sections.  We
   have to change the definition to something the rest of the link can
   understand.  */

static bfd_boolean
elf_arc_adjust_dynamic_symbol (struct bfd_link_info *info,
			      struct elf_link_hash_entry *h)
{
  asection *s;
  bfd *dynobj = (elf_hash_table (info))->dynobj;
  struct elf_link_hash_table *htab = elf_hash_table (info);

  if (h->type == STT_FUNC
      || h->type == STT_GNU_IFUNC
      || h->needs_plt == 1)
    {
      if (!bfd_link_pic (info) && !h->def_dynamic && !h->ref_dynamic)
	{
	  /* This case can occur if we saw a PLT32 reloc in an input
	     file, but the symbol was never referred to by a dynamic
	     object.  In such a case, we don't actually need to build
	     a procedure linkage table, and we can just do a PC32
	     reloc instead.  */
	  BFD_ASSERT (h->needs_plt);
	  return TRUE;
	}

      /* Make sure this symbol is output as a dynamic symbol.  */
      if (h->dynindx == -1 && !h->forced_local
	  && !bfd_elf_link_record_dynamic_symbol (info, h))
	return FALSE;

      if (bfd_link_pic (info)
	  || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
	{
	  bfd_vma loc = add_symbol_to_plt (info);

	  if (bfd_link_executable (info) && !h->def_regular)
	    {
	      h->root.u.def.section = htab->splt;
	      h->root.u.def.value = loc;
	    }
	  h->plt.offset = loc;
	}
      else
	{
	  h->plt.offset = (bfd_vma) -1;
	  h->needs_plt = 0;
	}
      return TRUE;
    }

  /* If this is a weak symbol, and there is a real definition, the
     processor independent code will have arranged for us to see the
     real definition first, and we can just use the same value.  */
  if (h->u.weakdef != NULL)
    {
      BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
		  || h->u.weakdef->root.type == bfd_link_hash_defweak);
      h->root.u.def.section = h->u.weakdef->root.u.def.section;
      h->root.u.def.value = h->u.weakdef->root.u.def.value;
      return TRUE;
    }

  /* This is a reference to a symbol defined by a dynamic object which
     is not a function.  */

  /* If we are creating a shared library, we must presume that the
     only references to the symbol are via the global offset table.
     For such cases we need not do anything here; the relocations will
     be handled correctly by relocate_section.  */
  if (!bfd_link_executable (info))
    return TRUE;

  /* If there are no non-GOT references, we do not need a copy
     relocation.  */
  if (!h->non_got_ref)
    return TRUE;

  /* If -z nocopyreloc was given, we won't generate them either.  */
  if (info->nocopyreloc)
    {
      h->non_got_ref = 0;
      return TRUE;
    }

  /* We must allocate the symbol in our .dynbss section, which will
     become part of the .bss section of the executable.  There will be
     an entry for this symbol in the .dynsym section.  The dynamic
     object will contain position independent code, so all references
     from the dynamic object to this symbol will go through the global
     offset table.  The dynamic linker will use the .dynsym entry to
     determine the address it must put in the global offset table, so
     both the dynamic object and the regular object will refer to the
     same memory location for the variable.  */

  if (htab == NULL)
    return FALSE;

  /* We must generate a R_ARC_COPY reloc to tell the dynamic linker to
     copy the initial value out of the dynamic object and into the
     runtime process image.  We need to remember the offset into the
     .rela.bss section we are going to use.  */
  if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
    {
      asection *srel;

      srel = bfd_get_section_by_name (dynobj, ".rela.bss");
      BFD_ASSERT (srel != NULL);
      srel->size += sizeof (Elf32_External_Rela);
      h->needs_copy = 1;
    }

  s = bfd_get_section_by_name (dynobj, ".dynbss");
  BFD_ASSERT (s != NULL);

  return _bfd_elf_adjust_dynamic_copy (info, h, s);
}

/* Function :  elf_arc_finish_dynamic_symbol
   Brief    :  Finish up dynamic symbol handling.  We set the
	     contents of various dynamic sections here.
   Args     :  output_bfd :
	       info	  :
	       h	  :
	       sym	  :
   Returns  : True/False as the return status.  */

static bfd_boolean
elf_arc_finish_dynamic_symbol (bfd * output_bfd,
			       struct bfd_link_info *info,
			       struct elf_link_hash_entry *h,
			       Elf_Internal_Sym * sym)
{
  if (h->plt.offset != (bfd_vma) -1)
    {
      relocate_plt_for_symbol (output_bfd, info, h);

      if (!h->def_regular)
	{
	  /* Mark the symbol as undefined, rather than as defined in
	     the .plt section.  Leave the value alone.  */
	  sym->st_shndx = SHN_UNDEF;
	}
    }


  /* This function traverses list of GOT entries and
     create respective dynamic relocs.  */
  /* TODO: Make function to get list and not access the list directly.  */
  /* TODO: Move function to relocate_section create this relocs eagerly.  */
  create_got_dynrelocs_for_got_info (&h->got.glist,
				     output_bfd,
				     info,
				     h);

  if (h->needs_copy)
    {
      bfd_vma rel_offset = (h->root.u.def.value
			    + h->root.u.def.section->output_section->vma
			    + h->root.u.def.section->output_offset);

      asection *srelbss
	= bfd_get_section_by_name (h->root.u.def.section->owner,
				 ".rela.bss");

      bfd_byte * loc = srelbss->contents
	+ (srelbss->reloc_count * sizeof (Elf32_External_Rela));
      srelbss->reloc_count++;

      Elf_Internal_Rela rel;
      rel.r_addend = 0;
      rel.r_offset = rel_offset;

      BFD_ASSERT (h->dynindx != -1);
      rel.r_info = ELF32_R_INFO (h->dynindx, R_ARC_COPY);

      bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
    }

  /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  */
  if (strcmp (h->root.root.string, "_DYNAMIC") == 0
      || strcmp (h->root.root.string, "__DYNAMIC") == 0
      || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
    sym->st_shndx = SHN_ABS;

  return TRUE;
}

#define GET_SYMBOL_OR_SECTION(TAG, SYMBOL, SECTION)		\
  case TAG:							\
  if (SYMBOL != NULL)						\
    h = elf_link_hash_lookup (elf_hash_table (info),		\
			      SYMBOL, FALSE, FALSE, TRUE);	\
  else if (SECTION != NULL)					\
    s = bfd_get_linker_section (dynobj, SECTION);		\
  break;

/* Function :  elf_arc_finish_dynamic_sections
   Brief    :  Finish up the dynamic sections handling.
   Args     :  output_bfd :
	       info	  :
	       h	  :
	       sym	  :
   Returns  : True/False as the return status.  */

static bfd_boolean
elf_arc_finish_dynamic_sections (bfd * output_bfd,
				 struct bfd_link_info *info)
{
  struct dynamic_sections ds = arc_create_dynamic_sections (output_bfd, info);
  struct elf_link_hash_table *htab = elf_hash_table (info);
  bfd *dynobj = (elf_hash_table (info))->dynobj;

  if (ds.sdyn)
    {
      Elf32_External_Dyn *dyncon, *dynconend;

      dyncon = (Elf32_External_Dyn *) ds.sdyn->contents;
      dynconend
	= (Elf32_External_Dyn *) (ds.sdyn->contents + ds.sdyn->size);
      for (; dyncon < dynconend; dyncon++)
	{
	  Elf_Internal_Dyn internal_dyn;
	  bfd_boolean	  do_it = FALSE;

	  struct elf_link_hash_entry *h = NULL;
	  asection	 *s = NULL;

	  bfd_elf32_swap_dyn_in (dynobj, dyncon, &internal_dyn);

	  switch (internal_dyn.d_tag)
	    {
	      GET_SYMBOL_OR_SECTION (DT_INIT, "_init", NULL)
	      GET_SYMBOL_OR_SECTION (DT_FINI, "_fini", NULL)
	      GET_SYMBOL_OR_SECTION (DT_PLTGOT, NULL, ".plt")
	      GET_SYMBOL_OR_SECTION (DT_JMPREL, NULL, ".rela.plt")
	      GET_SYMBOL_OR_SECTION (DT_PLTRELSZ, NULL, ".rela.plt")
	      GET_SYMBOL_OR_SECTION (DT_RELASZ, NULL, ".rela.plt")
	      GET_SYMBOL_OR_SECTION (DT_VERSYM, NULL, ".gnu.version")
	      GET_SYMBOL_OR_SECTION (DT_VERDEF, NULL, ".gnu.version_d")
	      GET_SYMBOL_OR_SECTION (DT_VERNEED, NULL, ".gnu.version_r")
	      default:
		break;
	    }

	  /* In case the dynamic symbols should be updated with a symbol.  */
	  if (h != NULL
	      && (h->root.type == bfd_link_hash_defined
		  || h->root.type == bfd_link_hash_defweak))
	    {
	      asection	     *asec_ptr;

	      internal_dyn.d_un.d_val = h->root.u.def.value;
	      asec_ptr = h->root.u.def.section;
	      if (asec_ptr->output_section != NULL)
		{
		  internal_dyn.d_un.d_val +=
		    (asec_ptr->output_section->vma
		     + asec_ptr->output_offset);
		}
	      else
		{
		  /* The symbol is imported from another shared
		     library and does not apply to this one.  */
		  internal_dyn.d_un.d_val = 0;
		}
	      do_it = TRUE;
	    }
	  else if (s != NULL) /* With a section information.  */
	    {
	      switch (internal_dyn.d_tag)
		{
		  case DT_PLTGOT:
		  case DT_JMPREL:
		  case DT_VERSYM:
		  case DT_VERDEF:
		  case DT_VERNEED:
		    internal_dyn.d_un.d_ptr = (s->output_section->vma
					       + s->output_offset);
		    do_it = TRUE;
		    break;

		  case DT_PLTRELSZ:
		    internal_dyn.d_un.d_val = s->size;
		    do_it = TRUE;
		    break;

		  case DT_RELASZ:
		    if (s != NULL)
		      internal_dyn.d_un.d_val -= s->size;
		    do_it = TRUE;
		    break;

		  default:
		    break;
		}
	    }

	  if (do_it)
	    bfd_elf32_swap_dyn_out (output_bfd, &internal_dyn, dyncon);
	}

      if (htab->splt->size > 0)
	{
	  relocate_plt_for_entry (output_bfd, info);
	}

      /* TODO: Validate this.  */
      elf_section_data (htab->srelplt->output_section)->this_hdr.sh_entsize
	= 0xc;
    }

  /* Fill in the first three entries in the global offset table.  */
  if (htab->sgot)
    {
      struct elf_link_hash_entry *h;
      h = elf_link_hash_lookup (elf_hash_table (info), "_GLOBAL_OFFSET_TABLE_",
				 FALSE, FALSE, TRUE);

	if (h != NULL && h->root.type != bfd_link_hash_undefined
	    && h->root.u.def.section != NULL)
	{
	  asection *sec = h->root.u.def.section;

	  if (ds.sdyn == NULL)
	    bfd_put_32 (output_bfd, (bfd_vma) 0,
			sec->contents);
	  else
	    bfd_put_32 (output_bfd,
			ds.sdyn->output_section->vma + ds.sdyn->output_offset,
			sec->contents);
	  bfd_put_32 (output_bfd, (bfd_vma) 0, sec->contents + 4);
	  bfd_put_32 (output_bfd, (bfd_vma) 0, sec->contents + 8);
	}
    }

  return TRUE;
}

#define ADD_DYNAMIC_SYMBOL(NAME, TAG)					\
  h =  elf_link_hash_lookup (elf_hash_table (info),			\
			     NAME, FALSE, FALSE, FALSE);		\
  if ((h != NULL && (h->ref_regular || h->def_regular)))		\
    if (! _bfd_elf_add_dynamic_entry (info, TAG, 0))			\
      return FALSE;

/* Set the sizes of the dynamic sections.  */
static bfd_boolean
elf_arc_size_dynamic_sections (bfd * output_bfd,
			       struct bfd_link_info *info)
{
  bfd *	   dynobj;
  asection *      s;
  bfd_boolean	  relocs_exist = FALSE;
  bfd_boolean	  reltext_exist = FALSE;
  struct dynamic_sections ds = arc_create_dynamic_sections (output_bfd, info);
  struct elf_link_hash_table *htab = elf_hash_table (info);

  dynobj = (elf_hash_table (info))->dynobj;
  BFD_ASSERT (dynobj != NULL);

  if ((elf_hash_table (info))->dynamic_sections_created)
    {
      struct elf_link_hash_entry *h;

      /* Set the contents of the .interp section to the
	 interpreter.  */
      if (!bfd_link_pic (info))
	{
	  s = bfd_get_section_by_name (dynobj, ".interp");
	  BFD_ASSERT (s != NULL);
	  s->size = sizeof (ELF_DYNAMIC_INTERPRETER);
	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
	}

      /* Add some entries to the .dynamic section.  We fill in some of
	 the values later, in elf_bfd_final_link, but we must add the
	 entries now so that we know the final size of the .dynamic
	 section.  Checking if the .init section is present.  We also
	 create DT_INIT and DT_FINI entries if the init_str has been
	 changed by the user.  */
      ADD_DYNAMIC_SYMBOL ("init", DT_INIT);
      ADD_DYNAMIC_SYMBOL ("fini", DT_FINI);
    }
  else
    {
      /* We may have created entries in the .rela.got section.
	 However, if we are not creating the dynamic sections, we will
	 not actually use these entries.  Reset the size of .rela.got,
	 which will cause it to get stripped from the output file
	 below.  */
      if (htab->srelgot != NULL)
	htab->srelgot->size = 0;
    }

  if (htab->splt != NULL && htab->splt->size == 0)
    htab->splt->flags |= SEC_EXCLUDE;
  for (s = dynobj->sections; s != NULL; s = s->next)
    {
      if ((s->flags & SEC_LINKER_CREATED) == 0)
	continue;

      if (strncmp (s->name, ".rela", 5) == 0)
	{
	  if (s->size == 0)
	    {
	      s->flags |= SEC_EXCLUDE;
	    }
	  else
	    {
	      if (strcmp (s->name, ".rela.plt") != 0)
		{
		  const char *outname =
		    bfd_get_section_name (output_bfd,
					  htab->srelplt->output_section);

		  asection *target = bfd_get_section_by_name (output_bfd,
							      outname + 4);

		  relocs_exist = TRUE;
		  if (target != NULL && target->size != 0
		      && (target->flags & SEC_READONLY) != 0
		      && (target->flags & SEC_ALLOC) != 0)
		    reltext_exist = TRUE;
		}
	    }

	  /* We use the reloc_count field as a counter if we need to
	     copy relocs into the output file.  */
	  s->reloc_count = 0;
	}

      if (strcmp (s->name, ".dynamic") == 0)
	continue;

      if (s->size != 0)
	s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);

      if (s->contents == NULL && s->size != 0)
	return FALSE;
    }

  if (ds.sdyn)
    {
      /* TODO: Check if this is needed.  */
      if (!bfd_link_pic (info))
	if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
		return FALSE;

      if (htab->splt && (htab->splt->flags & SEC_EXCLUDE) == 0)
	if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
	    || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
	    || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
	    || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0)
	   )
	  return FALSE;

      if (relocs_exist == TRUE)
	if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
	    || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
	    || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
					    sizeof (Elf32_External_Rela))
	   )
	  return FALSE;

      if (reltext_exist == TRUE)
	if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
	  return FALSE;
    }

  return TRUE;
}


/* Classify dynamic relocs such that -z combreloc can reorder and combine
   them.  */
static enum elf_reloc_type_class
elf32_arc_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
			    const asection *rel_sec ATTRIBUTE_UNUSED,
			    const Elf_Internal_Rela *rela)
{
  switch ((int) ELF32_R_TYPE (rela->r_info))
    {
    case R_ARC_RELATIVE:
      return reloc_class_relative;
    case R_ARC_JMP_SLOT:
      return reloc_class_plt;
    case R_ARC_COPY:
      return reloc_class_copy;
    /* TODO: Needed in future to support ifunc.  */
    /*
    case R_ARC_IRELATIVE:
      return reloc_class_ifunc;
    */
    default:
      return reloc_class_normal;
    }
}

const struct elf_size_info arc_elf32_size_info =
{
  sizeof (Elf32_External_Ehdr),
  sizeof (Elf32_External_Phdr),
  sizeof (Elf32_External_Shdr),
  sizeof (Elf32_External_Rel),
  sizeof (Elf32_External_Rela),
  sizeof (Elf32_External_Sym),
  sizeof (Elf32_External_Dyn),
  sizeof (Elf_External_Note),
  4,
  1,
  32, 2,
  ELFCLASS32, EV_CURRENT,
  bfd_elf32_write_out_phdrs,
  bfd_elf32_write_shdrs_and_ehdr,
  bfd_elf32_checksum_contents,
  bfd_elf32_write_relocs,
  bfd_elf32_swap_symbol_in,
  bfd_elf32_swap_symbol_out,
  bfd_elf32_slurp_reloc_table,
  bfd_elf32_slurp_symbol_table,
  bfd_elf32_swap_dyn_in,
  bfd_elf32_swap_dyn_out,
  bfd_elf32_swap_reloc_in,
  bfd_elf32_swap_reloc_out,
  bfd_elf32_swap_reloca_in,
  bfd_elf32_swap_reloca_out
};

#define elf_backend_size_info		arc_elf32_size_info

static struct bfd_link_hash_table *
arc_elf_link_hash_table_create (bfd *abfd)
{
  struct elf_link_hash_table *htab;

  htab = bfd_zmalloc (sizeof (*htab));
  if (htab == NULL)
    return NULL;

  if (!_bfd_elf_link_hash_table_init (htab, abfd,
				      _bfd_elf_link_hash_newfunc,
				      sizeof (struct elf_link_hash_entry),
				      GENERIC_ELF_DATA))
    {
      free (htab);
      return NULL;
    }

  htab->init_got_refcount.refcount = 0;
  htab->init_got_refcount.glist = NULL;
  htab->init_got_offset.offset = 0;
  htab->init_got_offset.glist = NULL;
  return (struct bfd_link_hash_table *) htab;
}

/* Hook called by the linker routine which adds symbols from an object
   file.  */

static bfd_boolean
elf_arc_add_symbol_hook (bfd * abfd,
			 struct bfd_link_info * info,
			 Elf_Internal_Sym * sym,
			 const char ** namep ATTRIBUTE_UNUSED,
			 flagword * flagsp ATTRIBUTE_UNUSED,
			 asection ** secp ATTRIBUTE_UNUSED,
			 bfd_vma * valp ATTRIBUTE_UNUSED)
{
  if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
      && (abfd->flags & DYNAMIC) == 0
      && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
    elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;

  return TRUE;
}

#define TARGET_LITTLE_SYM   arc_elf32_le_vec
#define TARGET_LITTLE_NAME  "elf32-littlearc"
#define TARGET_BIG_SYM	    arc_elf32_be_vec
#define TARGET_BIG_NAME     "elf32-bigarc"
#define ELF_ARCH	    bfd_arch_arc
#define ELF_MACHINE_CODE    EM_ARC_COMPACT
#define ELF_MACHINE_ALT1    EM_ARC_COMPACT2
#define ELF_MAXPAGESIZE     0x2000

#define bfd_elf32_bfd_link_hash_table_create	arc_elf_link_hash_table_create

#define bfd_elf32_bfd_merge_private_bfd_data    arc_elf_merge_private_bfd_data
#define bfd_elf32_bfd_reloc_type_lookup		arc_elf32_bfd_reloc_type_lookup
#define bfd_elf32_bfd_set_private_flags		arc_elf_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data    arc_elf_print_private_bfd_data
#define bfd_elf32_bfd_copy_private_bfd_data     arc_elf_copy_private_bfd_data

#define elf_info_to_howto_rel		     arc_info_to_howto_rel
#define elf_backend_object_p		     arc_elf_object_p
#define elf_backend_final_write_processing   arc_elf_final_write_processing

#define elf_backend_relocate_section	     elf_arc_relocate_section
#define elf_backend_check_relocs	     elf_arc_check_relocs
#define elf_backend_create_dynamic_sections  _bfd_elf_create_dynamic_sections

#define elf_backend_reloc_type_class		elf32_arc_reloc_type_class

#define elf_backend_adjust_dynamic_symbol    elf_arc_adjust_dynamic_symbol
#define elf_backend_finish_dynamic_symbol    elf_arc_finish_dynamic_symbol

#define elf_backend_finish_dynamic_sections  elf_arc_finish_dynamic_sections
#define elf_backend_size_dynamic_sections    elf_arc_size_dynamic_sections
#define elf_backend_add_symbol_hook	     elf_arc_add_symbol_hook

#define elf_backend_can_gc_sections	1
#define elf_backend_want_got_plt	1
#define elf_backend_plt_readonly	1
#define elf_backend_rela_plts_and_copies_p 1
#define elf_backend_want_plt_sym	0
#define elf_backend_got_header_size	12

#define elf_backend_may_use_rel_p	0
#define elf_backend_may_use_rela_p	1
#define elf_backend_default_use_rela_p	1

#define elf_backend_default_execstack	0

#include "elf32-target.h"