aboutsummaryrefslogtreecommitdiff
path: root/bfd/elf64-hppa.c
blob: b90b47878f00c7f28a3ee44df8cb8bed8ab5cbe1 (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
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
/* Generic support for 64-bit ELF
   Copyright 1999, 2000 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/hppa.h"
#include "libhppa.h"
#include "elf64-hppa.h"
#define ARCH_SIZE	       64

#define PLT_ENTRY_SIZE 0x10
#define DLT_ENTRY_SIZE 0x8
#define OPD_ENTRY_SIZE 0x20
 
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/pa20_64/dld.sl"

/* The stub is supposed to load the target address and target's DP
   value out of the PLT, then do an external branch to the target
   address.

   LDD PLTOFF(%r27),%r1
   BVE (%r1)
   LDD PLTOFF+8(%r27),%r27

   Note that we must use the LDD with a 14 bit displacement, not the one
   with a 5 bit displacement.  */
static char plt_stub[] = {0x53, 0x61, 0x00, 0x00, 0xe8, 0x20, 0xd0, 0x00,
			  0x53, 0x7b, 0x00, 0x00 };

struct elf64_hppa_dyn_hash_entry
{
  struct bfd_hash_entry root;

  /* Offsets for this symbol in various linker sections.  */
  bfd_vma dlt_offset;
  bfd_vma plt_offset;
  bfd_vma opd_offset;
  bfd_vma stub_offset;

  /* The symbol table entry, if any, that this was derived from.  */
  struct elf_link_hash_entry *h;

  /* The index of the (possibly local) symbol in the input bfd and its
     associated BFD.  Needed so that we can have relocs against local
     symbols in shared libraries.  */
  unsigned long sym_indx;
  bfd *owner;

  /* Dynamic symbols may need to have two different values.  One for
     the dynamic symbol table, one for the normal symbol table.

     In such cases we store the symbol's real value and section
     index here so we can restore the real value before we write
     the normal symbol table.  */
  bfd_vma st_value;
  int st_shndx;

  /* Used to count non-got, non-plt relocations for delayed sizing
     of relocation sections.  */
  struct elf64_hppa_dyn_reloc_entry
  {
    /* Next relocation in the chain.  */
    struct elf64_hppa_dyn_reloc_entry *next;

    /* The type of the relocation.  */
    int type;

    /* The input section of the relocation.  */
    asection *sec;

    /* The index of the section symbol for the input section of
       the relocation.  Only needed when building shared libraries.  */
    int sec_symndx;

    /* The offset within the input section of the relocation.  */
    bfd_vma offset;

    /* The addend for the relocation.  */
    bfd_vma addend;

  } *reloc_entries;

  /* Nonzero if this symbol needs an entry in one of the linker
     sections.  */
  unsigned want_dlt;
  unsigned want_plt;
  unsigned want_opd;
  unsigned want_stub;
};

struct elf64_hppa_dyn_hash_table
{
  struct bfd_hash_table root;
};

struct elf64_hppa_link_hash_table
{
  struct elf_link_hash_table root;

  /* Shortcuts to get to the various linker defined sections.  */
  asection *dlt_sec;
  asection *dlt_rel_sec;
  asection *plt_sec;
  asection *plt_rel_sec;
  asection *opd_sec;
  asection *opd_rel_sec;
  asection *other_rel_sec;

  /* Offset of __gp within .plt section.  When the PLT gets large we want
     to slide __gp into the PLT section so that we can continue to use
     single DP relative instructions to load values out of the PLT.  */
  bfd_vma gp_offset;

  /* Note this is not strictly correct.  We should create a stub section for
     each input section with calls.  The stub section should be placed before
     the section with the call.  */
  asection *stub_sec;

  bfd_vma text_segment_base;
  bfd_vma data_segment_base;

  struct elf64_hppa_dyn_hash_table dyn_hash_table;

  /* We build tables to map from an input section back to its
     symbol index.  This is the BFD for which we currently have
     a map.  */
  bfd *section_syms_bfd;

  /* Array of symbol numbers for each input section attached to the
     current BFD.  */
  int *section_syms;
};

#define elf64_hppa_hash_table(p) \
  ((struct elf64_hppa_link_hash_table *) ((p)->hash))

typedef struct bfd_hash_entry *(*new_hash_entry_func)
  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));

static boolean elf64_hppa_dyn_hash_table_init
  PARAMS ((struct elf64_hppa_dyn_hash_table *ht, bfd *abfd,
	   new_hash_entry_func new));
static struct bfd_hash_entry *elf64_hppa_new_dyn_hash_entry
  PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table,
	   const char *string));
static struct bfd_link_hash_table *elf64_hppa_hash_table_create
  PARAMS ((bfd *abfd));
static struct elf64_hppa_dyn_hash_entry *elf64_hppa_dyn_hash_lookup
  PARAMS ((struct elf64_hppa_dyn_hash_table *table, const char *string,
	   boolean create, boolean copy));
static void elf64_hppa_dyn_hash_traverse
  PARAMS ((struct elf64_hppa_dyn_hash_table *table,
	   boolean (*func)(struct elf64_hppa_dyn_hash_entry *, PTR),
	   PTR info));

static const char *get_dyn_name
  PARAMS ((asection *, struct elf_link_hash_entry *,
	   const Elf_Internal_Rela *, char **, size_t *));


/* This must follow the definitions of the various derived linker
   hash tables and shared functions.  */
#include "elf-hppa.h"


static boolean elf64_hppa_object_p
  PARAMS ((bfd *));

static boolean elf64_hppa_section_from_shdr
  PARAMS ((bfd *, Elf64_Internal_Shdr *, char *));

static void elf64_hppa_post_process_headers
  PARAMS ((bfd *, struct bfd_link_info *));

static boolean elf64_hppa_create_dynamic_sections
  PARAMS ((bfd *, struct bfd_link_info *));

static boolean elf64_hppa_adjust_dynamic_symbol
  PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));

static boolean elf64_hppa_size_dynamic_sections
  PARAMS ((bfd *, struct bfd_link_info *));

static boolean elf64_hppa_finish_dynamic_symbol
  PARAMS ((bfd *, struct bfd_link_info *,
	   struct elf_link_hash_entry *, Elf_Internal_Sym *));
	
static boolean elf64_hppa_finish_dynamic_sections
  PARAMS ((bfd *, struct bfd_link_info *));

static boolean elf64_hppa_check_relocs
  PARAMS ((bfd *, struct bfd_link_info *,
	   asection *, const Elf_Internal_Rela *));

static boolean elf64_hppa_dynamic_symbol_p
  PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *));

static boolean elf64_hppa_mark_exported_functions
  PARAMS ((struct elf_link_hash_entry *, PTR));

static boolean elf64_hppa_finalize_opd
  PARAMS ((struct elf64_hppa_dyn_hash_entry *, PTR));

static boolean elf64_hppa_finalize_dlt
  PARAMS ((struct elf64_hppa_dyn_hash_entry *, PTR));

static boolean allocate_global_data_dlt
  PARAMS ((struct elf64_hppa_dyn_hash_entry *, PTR));

static boolean allocate_global_data_plt
  PARAMS ((struct elf64_hppa_dyn_hash_entry *, PTR));

static boolean allocate_global_data_stub
  PARAMS ((struct elf64_hppa_dyn_hash_entry *, PTR));

static boolean allocate_global_data_opd
  PARAMS ((struct elf64_hppa_dyn_hash_entry *, PTR));

static boolean get_reloc_section
  PARAMS ((bfd *, struct elf64_hppa_link_hash_table *, asection *));

static boolean count_dyn_reloc
  PARAMS ((bfd *, struct elf64_hppa_dyn_hash_entry *,
	   int, asection *, int, bfd_vma, bfd_vma));

static boolean allocate_dynrel_entries
  PARAMS ((struct elf64_hppa_dyn_hash_entry *, PTR));

static boolean elf64_hppa_finalize_dynreloc
  PARAMS ((struct elf64_hppa_dyn_hash_entry *, PTR));

static boolean get_opd
  PARAMS ((bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *));

static boolean get_plt
  PARAMS ((bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *));

static boolean get_dlt
  PARAMS ((bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *));

static boolean get_stub
  PARAMS ((bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *));

static boolean
elf64_hppa_dyn_hash_table_init (ht, abfd, new)
     struct elf64_hppa_dyn_hash_table *ht;
     bfd *abfd ATTRIBUTE_UNUSED;
     new_hash_entry_func new;
{
  memset (ht, 0, sizeof(*ht));
  return bfd_hash_table_init (&ht->root, new);
}

static struct bfd_hash_entry*
elf64_hppa_new_dyn_hash_entry (entry, table, string)
     struct bfd_hash_entry *entry;
     struct bfd_hash_table *table;
     const char *string;
{
  struct elf64_hppa_dyn_hash_entry *ret;
  ret = (struct elf64_hppa_dyn_hash_entry *) entry;

  /* Allocate the structure if it has not already been allocated by a
     subclass.  */
  if (!ret)
    ret = bfd_hash_allocate (table, sizeof (*ret));

  if (!ret)
    return 0;

  /* Initialize our local data.  All zeros, and definitely easier
     than setting 8 bit fields.  */
  memset (ret, 0, sizeof(*ret));

  /* Call the allocation method of the superclass.  */
  ret = ((struct elf64_hppa_dyn_hash_entry *)
	 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));

  return &ret->root;
}

/* Create the derived linker hash table.  The PA64 ELF port uses this
   derived hash table to keep information specific to the PA ElF
   linker (without using static variables).  */

static struct bfd_link_hash_table*
elf64_hppa_hash_table_create (abfd)
     bfd *abfd;
{
  struct elf64_hppa_link_hash_table *ret;

  ret = bfd_zalloc (abfd, sizeof (*ret));
  if (!ret)
    return 0;
  if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
				      _bfd_elf_link_hash_newfunc))
    {
      bfd_release (abfd, ret);
      return 0;
    }

  if (!elf64_hppa_dyn_hash_table_init (&ret->dyn_hash_table, abfd,
				       elf64_hppa_new_dyn_hash_entry))
    return 0;
  return &ret->root.root;
}

/* Look up an entry in a PA64 ELF linker hash table.  */

static struct elf64_hppa_dyn_hash_entry *
elf64_hppa_dyn_hash_lookup(table, string, create, copy)
     struct elf64_hppa_dyn_hash_table *table;
     const char *string;
     boolean create, copy;
{
  return ((struct elf64_hppa_dyn_hash_entry *)
	  bfd_hash_lookup (&table->root, string, create, copy));
}

/* Traverse a PA64 ELF linker hash table.  */

static void
elf64_hppa_dyn_hash_traverse (table, func, info)
     struct elf64_hppa_dyn_hash_table *table;
     boolean (*func) PARAMS ((struct elf64_hppa_dyn_hash_entry *, PTR));
     PTR info;
{
  (bfd_hash_traverse
   (&table->root,
    (boolean (*) PARAMS ((struct bfd_hash_entry *, PTR))) func,
    info));
}

/* Return nonzero if ABFD represents a PA2.0 ELF64 file.

   Additionally we set the default architecture and machine.  */
static boolean
elf64_hppa_object_p (abfd)
     bfd *abfd;
{
  /* Set the right machine number for an HPPA ELF file.  */
  return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
}

/* Given section type (hdr->sh_type), return a boolean indicating
   whether or not the section is an elf64-hppa specific section.  */
static boolean
elf64_hppa_section_from_shdr (abfd, hdr, name)
     bfd *abfd;
     Elf64_Internal_Shdr *hdr;
     char *name;
{
  asection *newsect;

  switch (hdr->sh_type)
    {
    case SHT_PARISC_EXT:
      if (strcmp (name, ".PARISC.archext") != 0)
	return false;
      break;
    case SHT_PARISC_UNWIND:
      if (strcmp (name, ".PARISC.unwind") != 0)
	return false;
      break;
    case SHT_PARISC_DOC:
    case SHT_PARISC_ANNOT:
    default:
      return false;
    }

  if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
    return false;
  newsect = hdr->bfd_section;

  return true;
}


/* Construct a string for use in the elf64_hppa_dyn_hash_table.  The
   name describes what was once potentially anonymous memory.  We 
   allocate memory as necessary, possibly reusing PBUF/PLEN.  */

static const char *
get_dyn_name (sec, h, rel, pbuf, plen)
     asection *sec;
     struct elf_link_hash_entry *h;
     const Elf_Internal_Rela *rel;
     char **pbuf;
     size_t *plen;
{
  size_t nlen, tlen;
  char *buf;
  size_t len;

  if (h && rel->r_addend == 0)
    return h->root.root.string;

  if (h)
    nlen = strlen (h->root.root.string);
  else
    nlen = 8 + 1 + sizeof (rel->r_info) * 2 - 8;
  tlen = nlen + 1 + sizeof (rel->r_addend) * 2 + 1;

  len = *plen;
  buf = *pbuf;
  if (len < tlen)
    {
      if (buf)
	free (buf);
      *pbuf = buf = malloc (tlen);
      *plen = len = tlen;
      if (!buf)
	return NULL;
    }

  if (h)
    {
      memcpy (buf, h->root.root.string, nlen);
      buf[nlen++] = '+';
      sprintf_vma (buf + nlen, rel->r_addend);
    }
  else
    {
      nlen = sprintf (buf, "%x:%lx",
		      sec->id & 0xffffffff,
		      (long) ELF64_R_SYM (rel->r_info));
      if (rel->r_addend)
	{
	  buf[nlen++] = '+';
	  sprintf_vma (buf + nlen, rel->r_addend);
	}
    }

  return buf;
}

/* SEC is a section containing relocs for an input BFD when linking; return
   a suitable section for holding relocs in the output BFD for a link.  */

static boolean
get_reloc_section (abfd, hppa_info, sec)
     bfd *abfd;
     struct elf64_hppa_link_hash_table *hppa_info;
     asection *sec;
{
  const char *srel_name;
  asection *srel;
  bfd *dynobj;

  srel_name = (bfd_elf_string_from_elf_section
	       (abfd, elf_elfheader(abfd)->e_shstrndx,
		elf_section_data(sec)->rel_hdr.sh_name));
  if (srel_name == NULL)
    return false;

  BFD_ASSERT ((strncmp (srel_name, ".rela", 5) == 0
	       && strcmp (bfd_get_section_name (abfd, sec),
			  srel_name+5) == 0)
	      || (strncmp (srel_name, ".rel", 4) == 0
		  && strcmp (bfd_get_section_name (abfd, sec),
			     srel_name+4) == 0));

  dynobj = hppa_info->root.dynobj;
  if (!dynobj)
    hppa_info->root.dynobj = dynobj = abfd;

  srel = bfd_get_section_by_name (dynobj, srel_name);
  if (srel == NULL)
    {
      srel = bfd_make_section (dynobj, srel_name);
      if (srel == NULL
	  || !bfd_set_section_flags (dynobj, srel,
				     (SEC_ALLOC
				      | SEC_LOAD
				      | SEC_HAS_CONTENTS
				      | SEC_IN_MEMORY
				      | SEC_LINKER_CREATED
				      | SEC_READONLY))
	  || !bfd_set_section_alignment (dynobj, srel, 3))
	return false;
    }

  hppa_info->other_rel_sec = srel;
  return true;
}

/* Add a new entry to the list of dynamic relocations against DYN_H. 

   We use this to keep a record of all the FPTR relocations against a
   particular symbol so that we can create FPTR relocations in the
   output file.  */

static boolean
count_dyn_reloc (abfd, dyn_h, type, sec, sec_symndx, offset, addend)
     bfd *abfd;
     struct elf64_hppa_dyn_hash_entry *dyn_h;
     int type;
     asection *sec;
     int sec_symndx;
     bfd_vma offset;
     bfd_vma addend;
{
  struct elf64_hppa_dyn_reloc_entry *rent;

  rent = (struct elf64_hppa_dyn_reloc_entry *)
  bfd_alloc (abfd, sizeof (*rent));
  if (!rent)
    return false;

  rent->next = dyn_h->reloc_entries;
  rent->type = type;
  rent->sec = sec;
  rent->sec_symndx = sec_symndx;
  rent->offset = offset;
  rent->addend = addend;
  dyn_h->reloc_entries = rent;

  return true;
}

/* Scan the RELOCS and record the type of dynamic entries that each
   referenced symbol needs.  */

static boolean
elf64_hppa_check_relocs (abfd, info, sec, relocs)
     bfd *abfd;
     struct bfd_link_info *info;
     asection *sec;
     const Elf_Internal_Rela *relocs;
{
  struct elf64_hppa_link_hash_table *hppa_info;
  const Elf_Internal_Rela *relend;
  Elf_Internal_Shdr *symtab_hdr;
  const Elf_Internal_Rela *rel;
  asection *dlt, *plt, *stubs;
  char *buf;
  size_t buf_len;
  int sec_symndx;

  if (info->relocateable)
    return true;

  /* If this is the first dynamic object found in the link, create
     the special sections required for dynamic linking.  */
  if (! elf_hash_table (info)->dynamic_sections_created)
    {
      if (! bfd_elf64_link_create_dynamic_sections (abfd, info))
	return false;
    }

  hppa_info = elf64_hppa_hash_table (info);
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;

  /* If necessary, build a new table holding section symbols indices
     for this BFD.  This is disgusting.  */
 
  if (info->shared && hppa_info->section_syms_bfd != abfd)
    {
      unsigned int i;
      int highest_shndx;
      Elf_Internal_Sym *local_syms, *isym;
      Elf64_External_Sym *ext_syms, *esym;

      /* We're done with the old cache of section index to section symbol
	 index information.  Free it.

	 ?!? Note we leak the last section_syms array.  Presumably we
	 could free it in one of the later routines in this file.  */
      if (hppa_info->section_syms)
	free (hppa_info->section_syms);

      /* Allocate memory for the internal and external symbols.  */
      local_syms
        = (Elf_Internal_Sym *) bfd_malloc (symtab_hdr->sh_info
                                           * sizeof (Elf_Internal_Sym));
      if (local_syms == NULL)
	return false;

      ext_syms
        = (Elf64_External_Sym *) bfd_malloc (symtab_hdr->sh_info
                                             * sizeof (Elf64_External_Sym));
      if (ext_syms == NULL)
	{
	  free (local_syms);
	  return false;
	}

      /* Read in the local symbols.  */
      if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
          || bfd_read (ext_syms, 1,
                       (symtab_hdr->sh_info
                        * sizeof (Elf64_External_Sym)), abfd)
          != (symtab_hdr->sh_info * sizeof (Elf64_External_Sym)))
        {
	  free (local_syms);
	  free (ext_syms);
	  return false;
        }

      /* Swap in the local symbols, also record the highest section index
	 referenced by the local symbols.  */
      isym = local_syms;
      esym = ext_syms;
      highest_shndx = 0;
      for (i = 0; i < symtab_hdr->sh_info; i++, esym++, isym++)
	{
	  bfd_elf64_swap_symbol_in (abfd, esym, isym);
	  if (isym->st_shndx > highest_shndx)
	    highest_shndx = isym->st_shndx;
	}

      /* Now we can free the external symbols.  */
      free (ext_syms);

      /* Allocate an array to hold the section index to section symbol index
	 mapping.  Bump by one since we start counting at zero.  */
      highest_shndx++;
      hppa_info->section_syms = (int *) bfd_malloc (highest_shndx
						    * sizeof (int));

      /* Now walk the local symbols again.  If we find a section symbol,
	 record the index of the symbol into the section_syms array.  */
      for (isym = local_syms, i = 0; i < symtab_hdr->sh_info; i++, isym++)
	{
	  if (ELF_ST_TYPE (isym->st_info) == STT_SECTION)
	    hppa_info->section_syms[isym->st_shndx] = i;
	}

      /* We are finished with the local symbols.  Get rid of them.  */
      free (local_syms);

      /* Record which BFD we built the section_syms mapping for.  */
      hppa_info->section_syms_bfd = abfd;
    }

  /* Record the symbol index for this input section.  We may need it for
     relocations when building shared libraries.  When not building shared
     libraries this value is never really used, but assign it to zero to
     prevent out of bounds memory accesses in other routines.  */
  if (info->shared)
    {
      sec_symndx = _bfd_elf_section_from_bfd_section (abfd, sec);

      /* If we did not find a section symbol for this section, then
	 something went terribly wrong above.  */
      if (sec_symndx == -1)
	return false;

      sec_symndx = hppa_info->section_syms[sec_symndx];
    }
  else
    sec_symndx = 0;
 
  dlt = plt = stubs = NULL;
  buf = NULL;
  buf_len = 0;

  relend = relocs + sec->reloc_count;
  for (rel = relocs; rel < relend; ++rel)
    {
      enum {
	NEED_DLT = 1,
	NEED_PLT = 2,
	NEED_STUB = 4,
	NEED_OPD = 8,
	NEED_DYNREL = 16,
      };

      struct elf_link_hash_entry *h = NULL;
      unsigned long r_symndx = ELF64_R_SYM (rel->r_info);
      struct elf64_hppa_dyn_hash_entry *dyn_h;
      int need_entry;
      const char *addr_name;
      boolean maybe_dynamic;
      int dynrel_type = R_PARISC_NONE;
      static reloc_howto_type *howto;

      if (r_symndx >= symtab_hdr->sh_info)
	{
	  /* We're dealing with a global symbol -- find its hash entry
	     and mark it as being referenced.  */
	  long indx = r_symndx - symtab_hdr->sh_info;
	  h = elf_sym_hashes (abfd)[indx];
	  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;

	  h->elf_link_hash_flags |= ELF_LINK_HASH_REF_REGULAR;
	}

      /* We can only get preliminary data on whether a symbol is
	 locally or externally defined, as not all of the input files
	 have yet been processed.  Do something with what we know, as
	 this may help reduce memory usage and processing time later.  */
      maybe_dynamic = false;
      if (h && ((info->shared && ! info->symbolic)
		|| ! (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)
		|| h->root.type == bfd_link_hash_defweak))
	maybe_dynamic = true;

      howto = elf_hppa_howto_table + ELF64_R_TYPE (rel->r_info);
      need_entry = 0;
      switch (howto->type)
	{
	/* These are simple indirect references to symbols through the
	   DLT.  We need to create a DLT entry for any symbols which
	   appears in a DLTIND relocation.  */
	case R_PARISC_DLTIND21L:
	case R_PARISC_DLTIND14R:
	case R_PARISC_DLTIND14F:
	case R_PARISC_DLTIND14WR:
	case R_PARISC_DLTIND14DR:
	  need_entry = NEED_DLT;
	  break;

	/* ?!?  These need a DLT entry.  But I have no idea what to do with
	   the "link time TP value.  */
	case R_PARISC_LTOFF_TP21L:
	case R_PARISC_LTOFF_TP14R:
	case R_PARISC_LTOFF_TP14F:
	case R_PARISC_LTOFF_TP64:
	case R_PARISC_LTOFF_TP14WR:
	case R_PARISC_LTOFF_TP14DR:
	case R_PARISC_LTOFF_TP16F:
	case R_PARISC_LTOFF_TP16WF:
	case R_PARISC_LTOFF_TP16DF:
	  need_entry = NEED_DLT;
	  break;

	/* These are function calls.  Depending on their precise target we
	   may need to make a stub for them.  The stub uses the PLT, so we
	   need to create PLT entries for these symbols too.  */
	case R_PARISC_PCREL17F:
	case R_PARISC_PCREL22F:
	case R_PARISC_PCREL32:
	case R_PARISC_PCREL64:
	case R_PARISC_PCREL21L:
	case R_PARISC_PCREL17R:
	case R_PARISC_PCREL17C:
	case R_PARISC_PCREL14R:
	case R_PARISC_PCREL14F:
	case R_PARISC_PCREL22C:
	case R_PARISC_PCREL14WR:
	case R_PARISC_PCREL14DR:
	case R_PARISC_PCREL16F:
	case R_PARISC_PCREL16WF:
	case R_PARISC_PCREL16DF:
	  need_entry = (NEED_PLT | NEED_STUB);
	  break;

	case R_PARISC_PLTOFF21L:
	case R_PARISC_PLTOFF14R:
	case R_PARISC_PLTOFF14F:
	case R_PARISC_PLTOFF14WR:
	case R_PARISC_PLTOFF14DR:
	case R_PARISC_PLTOFF16F:
	case R_PARISC_PLTOFF16WF:
	case R_PARISC_PLTOFF16DF:
	  need_entry = (NEED_PLT);
	  break;

	case R_PARISC_DIR64:
	  if (info->shared || maybe_dynamic)
	    need_entry = (NEED_DYNREL);
	  dynrel_type = R_PARISC_DIR64;
	  break;

	/* This is an indirect reference through the DLT to get the address
	   of a OPD descriptor.  Thus we need to make a DLT entry that points
	   to an OPD entry.  */
	case R_PARISC_LTOFF_FPTR21L:
	case R_PARISC_LTOFF_FPTR14R:
	case R_PARISC_LTOFF_FPTR14WR:
	case R_PARISC_LTOFF_FPTR14DR:
	case R_PARISC_LTOFF_FPTR32:
	case R_PARISC_LTOFF_FPTR64:
	case R_PARISC_LTOFF_FPTR16F:
	case R_PARISC_LTOFF_FPTR16WF:
	case R_PARISC_LTOFF_FPTR16DF:
	  if (info->shared || maybe_dynamic)
	    need_entry = (NEED_DLT | NEED_OPD);
	  else
	    need_entry = (NEED_DLT | NEED_OPD);
	  dynrel_type = R_PARISC_FPTR64;
	  break;

	/* This is a simple OPD entry.  */
	case R_PARISC_FPTR64:
	  if (info->shared || maybe_dynamic)
	    need_entry = (NEED_OPD | NEED_DYNREL);
	  else
	    need_entry = (NEED_OPD);
	  dynrel_type = R_PARISC_FPTR64;
	  break;

	/* Add more cases as needed.  */
	}

      if (!need_entry)
	continue;

      /* Collect a canonical name for this address.  */
      addr_name = get_dyn_name (sec, h, rel, &buf, &buf_len);

      /* Collect the canonical entry data for this address.  */
      dyn_h = elf64_hppa_dyn_hash_lookup (&hppa_info->dyn_hash_table,
					  addr_name, true, true);
      BFD_ASSERT (dyn_h);

      /* Stash away enough information to be able to find this symbol
	 regardless of whether or not it is local or global.  */
      dyn_h->h = h;
      dyn_h->owner = abfd;
      dyn_h->sym_indx = r_symndx;

      /* ?!? We may need to do some error checking in here.  */
      /* Create what's needed.  */
      if (need_entry & NEED_DLT)
	{
	  if (! hppa_info->dlt_sec
	      && ! get_dlt (abfd, info, hppa_info))
	    goto err_out;
	  dyn_h->want_dlt = 1;
	}

      if (need_entry & NEED_PLT)
	{
	  if (! hppa_info->plt_sec
	      && ! get_plt (abfd, info, hppa_info))
	    goto err_out;
	  dyn_h->want_plt = 1;
	}

      if (need_entry & NEED_STUB)
	{
	  if (! hppa_info->stub_sec
	      && ! get_stub (abfd, info, hppa_info))
	    goto err_out;
	  dyn_h->want_stub = 1;
	}

      if (need_entry & NEED_OPD)
	{
	  if (! hppa_info->opd_sec
	      && ! get_opd (abfd, info, hppa_info))
	    goto err_out;

	  dyn_h->want_opd = 1;

	  /* FPTRs are not allocated by the dynamic linker for PA64, though
	     it is possible that will change in the future.  */
	    
	  /* This could be a local function that had its address taken, in
	     which case H will be NULL.  */
	  if (h)
	    h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
	}

      /* Add a new dynamic relocation to the chain of dynamic
	 relocations for this symbol.  */
      if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC))
	{
	  if (! hppa_info->other_rel_sec
	      && ! get_reloc_section (abfd, hppa_info, sec))
	    goto err_out;

	  if (!count_dyn_reloc (abfd, dyn_h, dynrel_type, sec,
				sec_symndx, rel->r_offset, rel->r_addend))
	    goto err_out;

	  /* If we are building a shared library and we just recorded
	     a dynamic R_PARISC_FPTR64 relocation, then make sure the
	     section symbol for this section ends up in the dynamic
	     symbol table.  */
	  if (info->shared && dynrel_type == R_PARISC_FPTR64
	      && ! (_bfd_elf64_link_record_local_dynamic_symbol
		    (info, abfd, sec_symndx)))
	    return false;
	}
    }

  if (buf)
    free (buf);
  return true;

 err_out:
  if (buf)
    free (buf);
  return false;
}

struct elf64_hppa_allocate_data
{
  struct bfd_link_info *info;
  bfd_size_type ofs;
};

/* Should we do dynamic things to this symbol?  */

static boolean
elf64_hppa_dynamic_symbol_p (h, info)
     struct elf_link_hash_entry *h;
     struct bfd_link_info *info;
{
  if (h == NULL)
    return false;

  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 (h->dynindx == -1)
    return false;

  if (h->root.type == bfd_link_hash_undefweak
      || h->root.type == bfd_link_hash_defweak)
    return true;

  if (h->root.root.string[0] == '$' && h->root.root.string[1] == '$')
    return false;

  if ((info->shared && !info->symbolic)
      || ((h->elf_link_hash_flags
	   & (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR))
	  == (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR)))
    return true;

  return false;
}

/* Mark all funtions exported by this file so that we can later allocate
   entries in .opd for them.  */

static boolean
elf64_hppa_mark_exported_functions (h, data)
     struct elf_link_hash_entry *h;
     PTR data;
{
  struct bfd_link_info *info = (struct bfd_link_info *)data;
  struct elf64_hppa_link_hash_table *hppa_info;

  hppa_info = elf64_hppa_hash_table (info);

  if (h
      && (h->root.type == bfd_link_hash_defined
	  || h->root.type == bfd_link_hash_defweak)
      && h->root.u.def.section->output_section != NULL
      && h->type == STT_FUNC)
    {
       struct elf64_hppa_dyn_hash_entry *dyn_h;

      /* Add this symbol to the PA64 linker hash table.  */
      dyn_h = elf64_hppa_dyn_hash_lookup (&hppa_info->dyn_hash_table,
					  h->root.root.string, true, true);
      BFD_ASSERT (dyn_h);
      dyn_h->h = h;

      if (! hppa_info->opd_sec
	  && ! get_opd (hppa_info->root.dynobj, info, hppa_info))
	return false;

      dyn_h->want_opd = 1;
      h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
    }

  return true;
}

/* Allocate space for a DLT entry.  */

static boolean
allocate_global_data_dlt (dyn_h, data)
     struct elf64_hppa_dyn_hash_entry *dyn_h;
     PTR data;
{
  struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;

  if (dyn_h->want_dlt)
    {
      struct elf_link_hash_entry *h = dyn_h->h;

      if (x->info->shared)
	{
	  /* Possibly add the symbol to the local dynamic symbol
	     table since we might need to create a dynamic relocation
	     against it.  */
	  if (! h
	      || (h && h->dynindx == -1))
	    {
	      bfd *owner;
	      owner = (h ? h->root.u.def.section->owner : dyn_h->owner);

	      if (!_bfd_elf64_link_record_local_dynamic_symbol
		    (x->info, owner, dyn_h->sym_indx))
		return false;
	    }
	}

      dyn_h->dlt_offset = x->ofs;
      x->ofs += DLT_ENTRY_SIZE;
    }
  return true;
}

/* Allocate space for a DLT.PLT entry.  */

static boolean
allocate_global_data_plt (dyn_h, data)
     struct elf64_hppa_dyn_hash_entry *dyn_h;
     PTR data;
{
  struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;

  if (dyn_h->want_plt
      && elf64_hppa_dynamic_symbol_p (dyn_h->h, x->info)
      && !((dyn_h->h->root.type == bfd_link_hash_defined
	    || dyn_h->h->root.type == bfd_link_hash_defweak)
	   && dyn_h->h->root.u.def.section->output_section != NULL))
    {
      dyn_h->plt_offset = x->ofs;
      x->ofs += PLT_ENTRY_SIZE;
      if (dyn_h->plt_offset < 0x2000)
	elf64_hppa_hash_table (x->info)->gp_offset = dyn_h->plt_offset;
    }
  else
    dyn_h->want_plt = 0;

  return true;
}

/* Allocate space for a STUB entry.  */

static boolean
allocate_global_data_stub (dyn_h, data)
     struct elf64_hppa_dyn_hash_entry *dyn_h;
     PTR data;
{
  struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;

  if (dyn_h->want_stub
      && elf64_hppa_dynamic_symbol_p (dyn_h->h, x->info)
      && !((dyn_h->h->root.type == bfd_link_hash_defined
	    || dyn_h->h->root.type == bfd_link_hash_defweak)
	   && dyn_h->h->root.u.def.section->output_section != NULL))
    {
      dyn_h->stub_offset = x->ofs;
      x->ofs += sizeof (plt_stub);
    }
  else
    dyn_h->want_stub = 0;
  return true;
}

/* Allocate space for a FPTR entry.  */

static boolean
allocate_global_data_opd (dyn_h, data)
     struct elf64_hppa_dyn_hash_entry *dyn_h;
     PTR data;
{
  struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;

  if (dyn_h->want_opd)
    {
      struct elf_link_hash_entry *h = dyn_h->h;
      
      if (h)
	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;

      /* We never need an opd entry for a symbol which is not
	 defined by this output file.  */
      if (h && h->root.type == bfd_link_hash_undefined)
	dyn_h->want_opd = 0;

      /* If we are creating a shared library, took the address of a local
	 function or might export this function from this object file, then
	 we have to create an opd descriptor.  */
      else if (x->info->shared
	       || h == NULL
	       || h->dynindx == -1
	       || ((h->root.type == bfd_link_hash_defined
		    || h->root.type == bfd_link_hash_defweak)
		   && h->root.u.def.section->output_section != NULL))
	{
	  /* If we are creating a shared library, then we will have to
	     create a runtime relocation for the symbol to properly
	     initialize the .opd entry.  Make sure the symbol gets
	     added to the dynamic symbol table.  */
	  if (x->info->shared
	      && (h == NULL || (h->dynindx == -1)))
	    {
	      bfd *owner;
	      owner = (h ? h->root.u.def.section->owner : dyn_h->owner);

	      if (!_bfd_elf64_link_record_local_dynamic_symbol
		    (x->info, owner, dyn_h->sym_indx))
		return false;
	    }

	  /* This may not be necessary or desirable anymore now that
	     we have some support for dealing with section symbols
	     in dynamic relocs.  But name munging does make the result
	     much easier to debug.  ie, the EPLT reloc will reference
	     a symbol like .foobar, instead of .text + offset.  */
	  if (x->info->shared && h)
	    {
	      char *new_name;
	      struct elf_link_hash_entry *nh;

	      new_name = alloca (strlen (h->root.root.string) + 2);
	      new_name[0] = '.';
	      strcpy (new_name + 1, h->root.root.string);

	      nh = elf_link_hash_lookup (elf_hash_table (x->info),
					 new_name, true, true, true);

	      nh->root.type = h->root.type;
	      nh->root.u.def.value = h->root.u.def.value;
	      nh->root.u.def.section = h->root.u.def.section;

	      if (! bfd_elf64_link_record_dynamic_symbol (x->info, nh))
		return false;

	     }
	  dyn_h->opd_offset = x->ofs;
	  x->ofs += OPD_ENTRY_SIZE;
	}

      /* Otherwise we do not need an opd entry.  */
      else
	dyn_h->want_opd = 0;
    }
  return true;
}

/* HP requires the EI_OSABI field to be filled in.  The assignment to
   EI_ABIVERSION may not be strictly necessary.  */

static void
elf64_hppa_post_process_headers (abfd, link_info)
     bfd * abfd;
     struct bfd_link_info * link_info ATTRIBUTE_UNUSED;
{
  Elf_Internal_Ehdr * i_ehdrp;

  i_ehdrp = elf_elfheader (abfd);

  i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
  i_ehdrp->e_ident[EI_ABIVERSION] = 1;
}

/* Create function descriptor section (.opd).  This section is called .opd
   because it contains "official prodecure descriptors".  The "official"
   refers to the fact that these descriptors are used when taking the address
   of a procedure, thus ensuring a unique address for each procedure.  */

static boolean
get_opd (abfd, info, hppa_info)
     bfd *abfd;
     struct bfd_link_info *info ATTRIBUTE_UNUSED;
     struct elf64_hppa_link_hash_table *hppa_info;
{
  asection *opd;
  bfd *dynobj;

  opd = hppa_info->opd_sec;
  if (!opd)
    {
      dynobj = hppa_info->root.dynobj;
      if (!dynobj)
	hppa_info->root.dynobj = dynobj = abfd;

      opd = bfd_make_section (dynobj, ".opd");
      if (!opd
	  || !bfd_set_section_flags (dynobj, opd,
				     (SEC_ALLOC
				      | SEC_LOAD
				      | SEC_HAS_CONTENTS
				      | SEC_IN_MEMORY
				      | SEC_LINKER_CREATED))
	  || !bfd_set_section_alignment (abfd, opd, 3))
	{
	  BFD_ASSERT (0);
	  return false;
	}

      hppa_info->opd_sec = opd;
    }

  return true;
}

/* Create the PLT section.  */

static boolean
get_plt (abfd, info, hppa_info)
     bfd *abfd;
     struct bfd_link_info *info ATTRIBUTE_UNUSED;
     struct elf64_hppa_link_hash_table *hppa_info;
{
  asection *plt;
  bfd *dynobj;

  plt = hppa_info->plt_sec;
  if (!plt)
    {
      dynobj = hppa_info->root.dynobj;
      if (!dynobj)
	hppa_info->root.dynobj = dynobj = abfd;

      plt = bfd_make_section (dynobj, ".plt");
      if (!plt
	  || !bfd_set_section_flags (dynobj, plt,
				     (SEC_ALLOC
				      | SEC_LOAD
				      | SEC_HAS_CONTENTS
				      | SEC_IN_MEMORY
				      | SEC_LINKER_CREATED))
	  || !bfd_set_section_alignment (abfd, plt, 3))
	{
	  BFD_ASSERT (0);
	  return false;
	}

      hppa_info->plt_sec = plt;
    }

  return true;
}

/* Create the DLT section.  */

static boolean
get_dlt (abfd, info, hppa_info)
     bfd *abfd;
     struct bfd_link_info *info ATTRIBUTE_UNUSED;
     struct elf64_hppa_link_hash_table *hppa_info;
{
  asection *dlt;
  bfd *dynobj;

  dlt = hppa_info->dlt_sec;
  if (!dlt)
    {
      dynobj = hppa_info->root.dynobj;
      if (!dynobj)
	hppa_info->root.dynobj = dynobj = abfd;

      dlt = bfd_make_section (dynobj, ".dlt");
      if (!dlt
	  || !bfd_set_section_flags (dynobj, dlt,
				     (SEC_ALLOC
				      | SEC_LOAD
				      | SEC_HAS_CONTENTS
				      | SEC_IN_MEMORY
				      | SEC_LINKER_CREATED))
	  || !bfd_set_section_alignment (abfd, dlt, 3))
	{
	  BFD_ASSERT (0);
	  return false;
	}

      hppa_info->dlt_sec = dlt;
    }

  return true;
}

/* Create the stubs section.  */

static boolean
get_stub (abfd, info, hppa_info)
     bfd *abfd;
     struct bfd_link_info *info ATTRIBUTE_UNUSED;
     struct elf64_hppa_link_hash_table *hppa_info;
{
  asection *stub;
  bfd *dynobj;

  stub = hppa_info->stub_sec;
  if (!stub)
    {
      dynobj = hppa_info->root.dynobj;
      if (!dynobj)
	hppa_info->root.dynobj = dynobj = abfd;

      stub = bfd_make_section (dynobj, ".stub");
      if (!stub
	  || !bfd_set_section_flags (dynobj, stub,
				     (SEC_ALLOC
				      | SEC_LOAD
				      | SEC_HAS_CONTENTS
				      | SEC_IN_MEMORY
				      | SEC_READONLY
				      | SEC_LINKER_CREATED))
	  || !bfd_set_section_alignment (abfd, stub, 3))
	{
	  BFD_ASSERT (0);
	  return false;
	}

      hppa_info->stub_sec = stub;
    }

  return true;
}

/* Create sections necessary for dynamic linking.  This is only a rough
   cut and will likely change as we learn more about the somewhat
   unusual dynamic linking scheme HP uses.

   .stub:
	Contains code to implement cross-space calls.  The first time one
	of the stubs is used it will call into the dynamic linker, later
	calls will go straight to the target.

	The only stub we support right now looks like

	ldd OFFSET(%dp),%r1
	bve %r0(%r1)
	ldd OFFSET+8(%dp),%dp

	Other stubs may be needed in the future.  We may want the remove
	the break/nop instruction.  It is only used right now to keep the
	offset of a .plt entry and a .stub entry in sync.

   .dlt:
	This is what most people call the .got.  HP used a different name.
	Losers.

   .rela.dlt:
	Relocations for the DLT.

   .plt:
	Function pointers as address,gp pairs.

   .rela.plt:
	Should contain dynamic IPLT (and EPLT?) relocations.

   .opd:
	FPTRS 

   .rela.opd:
	EPLT relocations for symbols exported from shared libraries.  */

static boolean
elf64_hppa_create_dynamic_sections (abfd, info)
     bfd *abfd;
     struct bfd_link_info *info;
{
  asection *s;

  if (! get_stub (abfd, info, elf64_hppa_hash_table (info)))
    return false;

  if (! get_dlt (abfd, info, elf64_hppa_hash_table (info)))
    return false;

  if (! get_plt (abfd, info, elf64_hppa_hash_table (info)))
    return false;

  if (! get_opd (abfd, info, elf64_hppa_hash_table (info)))
    return false;

  s = bfd_make_section(abfd, ".rela.dlt");
  if (s == NULL
      || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
					   | SEC_HAS_CONTENTS
					   | SEC_IN_MEMORY
					   | SEC_READONLY
					   | SEC_LINKER_CREATED))
      || !bfd_set_section_alignment (abfd, s, 3))
    return false;
  elf64_hppa_hash_table (info)->dlt_rel_sec = s;

  s = bfd_make_section(abfd, ".rela.plt");
  if (s == NULL
      || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
					   | SEC_HAS_CONTENTS
					   | SEC_IN_MEMORY
					   | SEC_READONLY
					   | SEC_LINKER_CREATED))
      || !bfd_set_section_alignment (abfd, s, 3))
    return false;
  elf64_hppa_hash_table (info)->plt_rel_sec = s;

  s = bfd_make_section(abfd, ".rela.data");
  if (s == NULL
      || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
					   | SEC_HAS_CONTENTS
					   | SEC_IN_MEMORY
					   | SEC_READONLY
					   | SEC_LINKER_CREATED))
      || !bfd_set_section_alignment (abfd, s, 3))
    return false;
  elf64_hppa_hash_table (info)->other_rel_sec = s;

  s = bfd_make_section(abfd, ".rela.opd");
  if (s == NULL
      || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
					   | SEC_HAS_CONTENTS
					   | SEC_IN_MEMORY
					   | SEC_READONLY
					   | SEC_LINKER_CREATED))
      || !bfd_set_section_alignment (abfd, s, 3))
    return false;
  elf64_hppa_hash_table (info)->opd_rel_sec = s;

  return true;
}

/* Allocate dynamic relocations for those symbols that turned out
   to be dynamic.  */

static boolean
allocate_dynrel_entries (dyn_h, data)
     struct elf64_hppa_dyn_hash_entry *dyn_h;
     PTR data;
{
  struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;
  struct elf64_hppa_link_hash_table *hppa_info;
  struct elf64_hppa_dyn_reloc_entry *rent;
  boolean dynamic_symbol, shared;

  hppa_info = elf64_hppa_hash_table (x->info);
  dynamic_symbol = elf64_hppa_dynamic_symbol_p (dyn_h->h, x->info);
  shared = x->info->shared;

  /* We may need to allocate relocations for a non-dynamic symbol
     when creating a shared library.  */
  if (!dynamic_symbol && !shared)
    return true;

  /* Take care of the normal data relocations.  */

  for (rent = dyn_h->reloc_entries; rent; rent = rent->next)
    {
      switch (rent->type)
	{
	case R_PARISC_FPTR64:
	  /* Allocate one iff we are not building a shared library and
	     !want_opd, which by this point will be true only if we're
	     actually allocating one statically in the main executable.  */
	  if (!x->info->shared && dyn_h->want_opd)
	    continue;
	  break;
	}
      hppa_info->other_rel_sec->_raw_size += sizeof (Elf64_External_Rela);

      /* Make sure this symbol gets into the dynamic symbol table if it is
	 not already recorded.  ?!? This should not be in the loop since
	 the symbol need only be added once.  */
      if (dyn_h->h == 0 || dyn_h->h->dynindx == -1)
	if (!_bfd_elf64_link_record_local_dynamic_symbol
	    (x->info, rent->sec->owner, dyn_h->sym_indx))
	  return false;
    }

  /* Take care of the GOT and PLT relocations.  */

  if ((dynamic_symbol || shared) && dyn_h->want_dlt)
    hppa_info->dlt_rel_sec->_raw_size += sizeof (Elf64_External_Rela);

  /* If we are building a shared library, then every symbol that has an
     opd entry will need an EPLT relocation to relocate the symbol's address
     and __gp value based on the runtime load address.  */
  if (shared && dyn_h->want_opd)
    hppa_info->opd_rel_sec->_raw_size += sizeof (Elf64_External_Rela);

  if (dyn_h->want_plt && dynamic_symbol)
    {
      bfd_size_type t = 0;

      /* Dynamic symbols get one IPLT relocation.  Local symbols in
	 shared libraries get two REL relocations.  Local symbols in
	 main applications get nothing.  */
      if (dynamic_symbol)
	t = sizeof (Elf64_External_Rela);
      else if (shared)
	t = 2 * sizeof (Elf64_External_Rela);

      hppa_info->plt_rel_sec->_raw_size += t;
    }

  return true;
}

/* Adjust a symbol defined by a dynamic object and referenced by a
   regular object.  */

static boolean
elf64_hppa_adjust_dynamic_symbol (info, h)
     struct bfd_link_info *info ATTRIBUTE_UNUSED;
     struct elf_link_hash_entry *h;
{
  /* ??? Undefined symbols with PLT entries should be re-defined
     to be the PLT entry.  */

  /* 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->weakdef != NULL)
    {
      BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
		  || h->weakdef->root.type == bfd_link_hash_defweak);
      h->root.u.def.section = h->weakdef->root.u.def.section;
      h->root.u.def.value = h->weakdef->root.u.def.value;
      return true;
    }

  /* If this is a reference to a symbol defined by a dynamic object which
     is not a function, we might allocate the symbol in our .dynbss section
     and allocate a COPY dynamic relocation.

     But PA64 code is canonically PIC, so as a rule we can avoid this sort
     of hackery.  */

  return true;
}

/* Set the final sizes of the dynamic sections and allocate memory for
   the contents of our special sections.  */

static boolean
elf64_hppa_size_dynamic_sections (output_bfd, info)
     bfd *output_bfd;
     struct bfd_link_info *info;
{
  bfd *dynobj;
  asection *s;
  boolean plt;
  boolean relocs;
  boolean reltext;
  struct elf64_hppa_allocate_data data;
  struct elf64_hppa_link_hash_table *hppa_info;

  hppa_info = elf64_hppa_hash_table (info);

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

  if (elf_hash_table (info)->dynamic_sections_created)
    {
      /* Set the contents of the .interp section to the interpreter.  */
      if (! info->shared)
	{
	  s = bfd_get_section_by_name (dynobj, ".interp");
	  BFD_ASSERT (s != NULL);
	  s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
	}
    }
  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.dlt,
	 which will cause it to get stripped from the output file
	 below.  */
      s = bfd_get_section_by_name (dynobj, ".rela.dlt");
      if (s != NULL)
	s->_raw_size = 0;
    }

  /* Allocate the GOT entries.  */

  data.info = info;
  if (elf64_hppa_hash_table (info)->dlt_sec)
    {
      data.ofs = 0x0;
      elf64_hppa_dyn_hash_traverse (&hppa_info->dyn_hash_table,
				    allocate_global_data_dlt, &data);
      hppa_info->dlt_sec->_raw_size = data.ofs;

      data.ofs = 0x0;
      elf64_hppa_dyn_hash_traverse (&hppa_info->dyn_hash_table,
				    allocate_global_data_plt, &data);
      hppa_info->plt_sec->_raw_size = data.ofs;

      data.ofs = 0x0;
      elf64_hppa_dyn_hash_traverse (&hppa_info->dyn_hash_table,
				    allocate_global_data_stub, &data);
      hppa_info->stub_sec->_raw_size = data.ofs;
    }

  /* Mark each function this program exports so that we will allocate
     space in the .opd section for each function's FPTR.

     We have to traverse the main linker hash table since we have to
     find functions which may not have been mentioned in any relocs.  */
  elf_link_hash_traverse (elf_hash_table (info),
			  elf64_hppa_mark_exported_functions,
			  info);

  /* Allocate space for entries in the .opd section.  */
  if (elf64_hppa_hash_table (info)->opd_sec)
    {
      data.ofs = 0;
      elf64_hppa_dyn_hash_traverse (&hppa_info->dyn_hash_table,
				    allocate_global_data_opd, &data);
      hppa_info->opd_sec->_raw_size = data.ofs;
    }

  /* Now allocate space for dynamic relocations, if necessary.  */
  if (hppa_info->root.dynamic_sections_created)
    elf64_hppa_dyn_hash_traverse (&hppa_info->dyn_hash_table,
				  allocate_dynrel_entries, &data);

  /* The sizes of all the sections are set.  Allocate memory for them.  */
  plt = false;
  relocs = false;
  reltext = false;
  for (s = dynobj->sections; s != NULL; s = s->next)
    {
      const char *name;
      boolean strip;

      if ((s->flags & SEC_LINKER_CREATED) == 0)
	continue;

      /* It's OK to base decisions on the section name, because none
	 of the dynobj section names depend upon the input files.  */
      name = bfd_get_section_name (dynobj, s);

      strip = 0;

      if (strcmp (name, ".plt") == 0)
	{
	  if (s->_raw_size == 0)
	    {
	      /* Strip this section if we don't need it; see the
		 comment below.  */
	      strip = true;
	    }
	  else
	    {
	      /* Remember whether there is a PLT.  */
	      plt = true;
	    }
	}
      else if (strcmp (name, ".dlt") == 0)
	{
	  if (s->_raw_size == 0)
	    {
	      /* Strip this section if we don't need it; see the
		 comment below.  */
	      strip = true;
	    }
	}
      else if (strcmp (name, ".opd") == 0)
	{
	  if (s->_raw_size == 0)
	    {
	      /* Strip this section if we don't need it; see the
		 comment below.  */
	      strip = true;
	    }
	}
      else if (strncmp (name, ".rela", 4) == 0)
	{
	  if (s->_raw_size == 0)
	    {
	      /* If we don't need this section, strip it from the
		 output file.  This is mostly to handle .rela.bss and
		 .rela.plt.  We must create both sections in
		 create_dynamic_sections, because they must be created
		 before the linker maps input sections to output
		 sections.  The linker does that before
		 adjust_dynamic_symbol is called, and it is that
		 function which decides whether anything needs to go
		 into these sections.  */
	      strip = true;
	    }
	  else
	    {
	      asection *target;

	      /* Remember whether there are any reloc sections other
		 than .rela.plt.  */
	      if (strcmp (name, ".rela.plt") != 0)
		{
		  const char *outname;

		  relocs = true;

		  /* If this relocation section applies to a read only
		     section, then we probably need a DT_TEXTREL
		     entry.  The entries in the .rela.plt section
		     really apply to the .got section, which we
		     created ourselves and so know is not readonly.  */
		  outname = bfd_get_section_name (output_bfd,
						  s->output_section);
		  target = bfd_get_section_by_name (output_bfd, outname + 4);
		  if (target != NULL
		      && (target->flags & SEC_READONLY) != 0
		      && (target->flags & SEC_ALLOC) != 0)
		    reltext = true;
		}

	      /* We use the reloc_count field as a counter if we need
		 to copy relocs into the output file.  */
	      s->reloc_count = 0;
	    }
	}
      else if (strncmp (name, ".dlt", 4) != 0
	       && strcmp (name, ".stub") != 0
	       && strcmp (name, ".got") != 0)
	{
	  /* It's not one of our sections, so don't allocate space.  */
	  continue;
	}

      if (strip)
	{
	  _bfd_strip_section_from_output (info, s);
	  continue;
	}

      /* Allocate memory for the section contents if it has not
	 been allocated already.  */
      if (s->contents == NULL)
	{
	  s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
	  if (s->contents == NULL && s->_raw_size != 0)
	    return false;
	}
    }

  if (elf_hash_table (info)->dynamic_sections_created)
    {
      /* Always create a DT_PLTGOT.  It actually has nothing to do with
	 the PLT, it is how we communicate the __gp value of a load
	 module to the dynamic linker.  */
      if (! bfd_elf64_add_dynamic_entry (info, DT_HP_DLD_FLAGS, 0)
	  || ! bfd_elf64_add_dynamic_entry (info, DT_PLTGOT, 0))
	return false;

      /* Add some entries to the .dynamic section.  We fill in the
	 values later, in elf64_hppa_finish_dynamic_sections, but we
	 must add the entries now so that we get the correct size for
	 the .dynamic section.  The DT_DEBUG entry is filled in by the
	 dynamic linker and used by the debugger.  */
      if (! info->shared)
	{
	  if (! bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0)
	      || ! bfd_elf64_add_dynamic_entry (info, DT_HP_DLD_HOOK, 0)
	      || ! bfd_elf64_add_dynamic_entry (info, DT_HP_LOAD_MAP, 0))
	    return false;
	}

      if (plt)
	{
	  if (! bfd_elf64_add_dynamic_entry (info, DT_PLTRELSZ, 0)
	      || ! bfd_elf64_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
	      || ! bfd_elf64_add_dynamic_entry (info, DT_JMPREL, 0))
	    return false;
	}

      if (relocs)
	{
	  if (! bfd_elf64_add_dynamic_entry (info, DT_RELA, 0)
	      || ! bfd_elf64_add_dynamic_entry (info, DT_RELASZ, 0)
	      || ! bfd_elf64_add_dynamic_entry (info, DT_RELAENT,
						sizeof (Elf64_External_Rela)))
	    return false;
	}

      if (reltext)
	{
	  if (! bfd_elf64_add_dynamic_entry (info, DT_TEXTREL, 0))
	    return false;
	}
    }

  return true;
}

/* Called after we have output the symbol into the dynamic symbol
   table, but before we output the symbol into the normal symbol
   table.

   For some symbols we had to change their address when outputting
   the dynamic symbol table.  We undo that change here so that
   the symbols have their expected value in the normal symbol
   table.  Ick.  */

static boolean
elf64_hppa_link_output_symbol_hook (abfd, info, name, sym, input_sec)
     bfd *abfd ATTRIBUTE_UNUSED;
     struct bfd_link_info *info;
     const char *name;
     Elf_Internal_Sym *sym;
     asection *input_sec ATTRIBUTE_UNUSED;
{
  struct elf64_hppa_link_hash_table *hppa_info;
  struct elf64_hppa_dyn_hash_entry *dyn_h;

  /* We may be called with the file symbol or section symbols.
     They never need munging, so it is safe to ignore them.  */
  if (!name)
    return true;

  /* Get the PA dyn_symbol (if any) associated with NAME.  */
  hppa_info = elf64_hppa_hash_table (info);
  dyn_h = elf64_hppa_dyn_hash_lookup (&hppa_info->dyn_hash_table,
				      name, false, false);

  /* Function symbols for which we created .opd entries were munged
     by finish_dynamic_symbol and have to be un-munged here.  */
  if (dyn_h && dyn_h->want_opd)
    {
      /* Restore the saved value and section index.  */
      sym->st_value = dyn_h->st_value;
      sym->st_shndx = dyn_h->st_shndx; 
    }

  return true;
}

/* Finish up dynamic symbol handling.  We set the contents of various
   dynamic sections here.  */

static boolean
elf64_hppa_finish_dynamic_symbol (output_bfd, info, h, sym)
     bfd *output_bfd;
     struct bfd_link_info *info;
     struct elf_link_hash_entry *h;
     Elf_Internal_Sym *sym;
{
  asection *stub, *splt, *sdlt, *sopd, *spltrel, *sdltrel;
  struct elf64_hppa_link_hash_table *hppa_info;
  struct elf64_hppa_dyn_hash_entry *dyn_h;

  hppa_info = elf64_hppa_hash_table (info);
  dyn_h = elf64_hppa_dyn_hash_lookup (&hppa_info->dyn_hash_table,
				      h->root.root.string, false, false);

  stub = hppa_info->stub_sec;
  splt = hppa_info->plt_sec;
  sdlt = hppa_info->dlt_sec;
  sopd = hppa_info->opd_sec;
  spltrel = hppa_info->plt_rel_sec;
  sdltrel = hppa_info->dlt_rel_sec;

  BFD_ASSERT (stub != NULL && splt != NULL
	      && sopd != NULL && sdlt != NULL)

  /* Incredible.  It is actually necessary to NOT use the symbol's real
     value when building the dynamic symbol table for a shared library.
     At least for symbols that refer to functions.

     We will store a new value and section index into the symbol long
     enough to output it into the dynamic symbol table, then we restore
     the original values (in elf64_hppa_link_output_symbol_hook).  */
  if (dyn_h && dyn_h->want_opd)
    {
      /* Save away the original value and section index so that we
	 can restore them later.  */
      dyn_h->st_value = sym->st_value;
      dyn_h->st_shndx = sym->st_shndx;

      /* For the dynamic symbol table entry, we want the value to be
	 address of this symbol's entry within the .opd section.  */
      sym->st_value = (dyn_h->opd_offset
		       + sopd->output_offset
		       + sopd->output_section->vma);
      sym->st_shndx = _bfd_elf_section_from_bfd_section (output_bfd,
							 sopd->output_section);
    }

  /* Initialize a .plt entry if requested.  */
  if (dyn_h && dyn_h->want_plt
      && elf64_hppa_dynamic_symbol_p (dyn_h->h, info))
    {
      bfd_vma value;
      Elf_Internal_Rela rel;

      /* We do not actually care about the value in the PLT entry
	 if we are creating a shared library and the symbol is
	 still undefined, we create a dynamic relocation to fill
	 in the correct value.  */
      if (info->shared && h->root.type == bfd_link_hash_undefined)
	value = 0;
      else
	value = (h->root.u.def.value + h->root.u.def.section->vma);

      /* Fill in the entry in the procedure linkage table. 

	 The format of a plt entry is
	 <funcaddr> <__gp>. 

	 plt_offset is the offset within the PLT section at which to
	 install the PLT entry. 

	 We are modifying the in-memory PLT contents here, so we do not add
	 in the output_offset of the PLT section.  */

      bfd_put_64 (splt->owner, value, splt->contents + dyn_h->plt_offset);
      value = _bfd_get_gp_value (splt->output_section->owner);
      bfd_put_64 (splt->owner, value, splt->contents + dyn_h->plt_offset + 0x8);

      /* Create a dynamic IPLT relocation for this entry.

	 We are creating a relocation in the output file's PLT section,
	 which is included within the DLT secton.  So we do need to include
	 the PLT's output_offset in the computation of the relocation's
	 address.  */
      rel.r_offset = (dyn_h->plt_offset + splt->output_offset
		      + splt->output_section->vma);
      rel.r_info = ELF64_R_INFO (h->dynindx, R_PARISC_IPLT);
      rel.r_addend = 0;

      bfd_elf64_swap_reloca_out (splt->output_section->owner, &rel,
				 (((Elf64_External_Rela *)
				   spltrel->contents)
				  + spltrel->reloc_count));
      spltrel->reloc_count++;
    }

  /* Initialize an external call stub entry if requested.  */
  if (dyn_h && dyn_h->want_stub
      && elf64_hppa_dynamic_symbol_p (dyn_h->h, info))
    {
      bfd_vma value;
      int insn;

      /* Install the generic stub template.

	 We are modifying the contents of the stub section, so we do not
	 need to include the stub section's output_offset here.  */
      memcpy (stub->contents + dyn_h->stub_offset, plt_stub, sizeof (plt_stub));

      /* Fix up the first ldd instruction.

	 We are modifying the contents of the STUB section in memory,
	 so we do not need to include its output offset in this computation. 

	 Note the plt_offset value is the value of the PLT entry relative to
	 the start of the PLT section.  These instructions will reference
	 data relative to the value of __gp, which may not necessarily have
	 the same address as the start of the PLT section.

	 gp_offset contains the offset of __gp within the PLT section.  */
      value = dyn_h->plt_offset - hppa_info->gp_offset;
      
      insn = bfd_get_32 (stub->owner, stub->contents + dyn_h->stub_offset);
      insn &= 0xffffc00e;
      insn |= ((value & 0x2000) >> 13);
      value &= 0x1ff8;
      value <<= 1;
      bfd_put_32 (stub->owner, (insn | value),
		  stub->contents + dyn_h->stub_offset);

      /* Fix up the second ldd instruction.  */
      value = dyn_h->plt_offset - hppa_info->gp_offset + 8;
      
      insn = bfd_get_32 (stub->owner, stub->contents + dyn_h->stub_offset + 8);
      insn &= 0xffffc00e;
      insn |= ((value & 0x2000) >> 13);
      value &= 0x1ff8;
      value <<= 1;
      bfd_put_32 (stub->owner, (insn | value),
		  stub->contents + dyn_h->stub_offset + 8);
    }

  /* Millicode symbols should not be put in the dynamic
     symbol table under any circumstances.  */
  if (ELF_ST_TYPE (sym->st_info) == STT_PARISC_MILLI)
    h->dynindx = -1;

  return true;
}

/* The .opd section contains FPTRs for each function this file
   exports.  Initialize the FPTR entries.  */

static boolean
elf64_hppa_finalize_opd (dyn_h, data)
     struct elf64_hppa_dyn_hash_entry *dyn_h;
     PTR data;
{
  struct bfd_link_info *info = (struct bfd_link_info *)data;
  struct elf64_hppa_link_hash_table *hppa_info;
  struct elf_link_hash_entry *h = dyn_h->h;
  asection *sopd;
  asection *sopdrel;

  hppa_info = elf64_hppa_hash_table (info);
  sopd = hppa_info->opd_sec;
  sopdrel = hppa_info->opd_rel_sec;

  if (h && dyn_h && dyn_h->want_opd)
    {
      bfd_vma value;

      /* The first two words of an .opd entry are zero. 

	 We are modifying the contents of the OPD section in memory, so we
	 do not need to include its output offset in this computation.  */
      memset (sopd->contents + dyn_h->opd_offset, 0, 16);

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

      /* The next word is the address of the function.  */
      bfd_put_64 (sopd->owner, value, sopd->contents + dyn_h->opd_offset + 16);

      /* The last word is our local __gp value.  */
      value = _bfd_get_gp_value (sopd->output_section->owner);
      bfd_put_64 (sopd->owner, value, sopd->contents + dyn_h->opd_offset + 24);
    }

  /* If we are generating a shared library, we must generate EPLT relocations
     for each entry in the .opd, even for static functions (they may have
     had their address taken).  */
  if (info->shared && dyn_h && dyn_h->want_opd)
    {
      Elf64_Internal_Rela rel;
      int dynindx;

      /* We may need to do a relocation against a local symbol, in
	 which case we have to look up it's dynamic symbol index off
	 the local symbol hash table.  */
      if (h && h->dynindx != -1)
	dynindx = h->dynindx;
      else
	dynindx
	  = _bfd_elf_link_lookup_local_dynindx (info, dyn_h->owner,
						dyn_h->sym_indx);

      /* The offset of this relocation is the absolute address of the
	 .opd entry for this symbol.  */
      rel.r_offset = (dyn_h->opd_offset + sopd->output_offset
		      + sopd->output_section->vma);

      /* If H is non-null, then we have an external symbol.

	 It is imperative that we use a different dynamic symbol for the
	 EPLT relocation if the symbol has global scope.

	 In the dynamic symbol table, the function symbol will have a value
	 which is address of the function's .opd entry.

	 Thus, we can not use that dynamic symbol for the EPLT relocation
	 (if we did, the data in the .opd would reference itself rather
	 than the actual address of the function).  Instead we have to use
	 a new dynamic symbol which has the same value as the original global
	 function symbol. 

	 We prefix the original symbol with a "." and use the new symbol in
	 the EPLT relocation.  This new symbol has already been recorded in
	 the symbol table, we just have to look it up and use it.

	 We do not have such problems with static functions because we do
	 not make their addresses in the dynamic symbol table point to
	 the .opd entry.  Ultimately this should be safe since a static
	 function can not be directly referenced outside of its shared
	 library.

	 We do have to play similar games for FPTR relocations in shared
	 libraries, including those for static symbols.  See the FPTR
	 handling in elf64_hppa_finalize_dynreloc.  */
      if (h)
	{
	  char *new_name;
	  struct elf_link_hash_entry *nh;

	  new_name = alloca (strlen (h->root.root.string) + 2);
	  new_name[0] = '.';
	  strcpy (new_name + 1, h->root.root.string);

	  nh = elf_link_hash_lookup (elf_hash_table (info),
				     new_name, false, false, false);

	  /* All we really want from the new symbol is its dynamic
	     symbol index.  */
	  dynindx = nh->dynindx;
	}

      rel.r_addend = 0;
      rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_EPLT);

      bfd_elf64_swap_reloca_out (sopd->output_section->owner, &rel,
				 (((Elf64_External_Rela *)
				   sopdrel->contents)
				  + sopdrel->reloc_count));
      sopdrel->reloc_count++;
    }
  return true;
}

/* The .dlt section contains addresses for items referenced through the
   dlt.  Note that we can have a DLTIND relocation for a local symbol, thus
   we can not depend on finish_dynamic_symbol to initialize the .dlt.  */

static boolean
elf64_hppa_finalize_dlt (dyn_h, data)
     struct elf64_hppa_dyn_hash_entry *dyn_h;
     PTR data;
{
  struct bfd_link_info *info = (struct bfd_link_info *)data;
  struct elf64_hppa_link_hash_table *hppa_info;
  asection *sdlt, *sdltrel;
  struct elf_link_hash_entry *h = dyn_h->h;

  hppa_info = elf64_hppa_hash_table (info);

  sdlt = hppa_info->dlt_sec;
  sdltrel = hppa_info->dlt_rel_sec;

  /* H/DYN_H may refer to a local variable and we know it's
     address, so there is no need to create a relocation.  Just install
     the proper value into the DLT, note this shortcut can not be
     skipped when building a shared library.  */
  if (! info->shared && h && dyn_h && dyn_h->want_dlt)
    {
      bfd_vma value;

      /* If we had an LTOFF_FPTR style relocation we want the DLT entry
	 to point to the FPTR entry in the .opd section. 

	 We include the OPD's output offset in this computation as
	 we are referring to an absolute address in the resulting
	 object file.  */
      if (dyn_h->want_opd)
	{
	  value = (dyn_h->opd_offset
		   + hppa_info->opd_sec->output_offset
		   + hppa_info->opd_sec->output_section->vma);
	}
      else
	{
	  value = (h->root.u.def.value
		   + h->root.u.def.section->output_offset);

	  if (h->root.u.def.section->output_section)
	    value += h->root.u.def.section->output_section->vma;
	  else
	    value += h->root.u.def.section->vma;
	}

      /* We do not need to include the output offset of the DLT section
	 here because we are modifying the in-memory contents.  */
      bfd_put_64 (sdlt->owner, value, sdlt->contents + dyn_h->dlt_offset);
    }

  /* Create a relocation for the DLT entry assocated with this symbol.
     When building a shared library the symbol does not have to be dynamic.  */
  if (dyn_h->want_dlt
      && (elf64_hppa_dynamic_symbol_p (dyn_h->h, info) || info->shared))
    {
      Elf64_Internal_Rela rel;
      int dynindx;

      /* We may need to do a relocation against a local symbol, in
	 which case we have to look up it's dynamic symbol index off
	 the local symbol hash table.  */
      if (h && h->dynindx != -1)
	dynindx = h->dynindx;
      else
	dynindx
	  = _bfd_elf_link_lookup_local_dynindx (info, dyn_h->owner,
						dyn_h->sym_indx);


      /* Create a dynamic relocation for this entry.  Do include the output
	 offset of the DLT entry since we need an absolute address in the
	 resulting object file.  */
      rel.r_offset = (dyn_h->dlt_offset + sdlt->output_offset
		      + sdlt->output_section->vma);
      if (h && h->type == STT_FUNC)
	  rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_FPTR64);
      else
	  rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_DIR64);
      rel.r_addend = 0;

      bfd_elf64_swap_reloca_out (sdlt->output_section->owner, &rel,
				 (((Elf64_External_Rela *)
				   sdltrel->contents)
				  + sdltrel->reloc_count));
      sdltrel->reloc_count++;
    }
  return true;
}

/* Finalize the dynamic relocations.  Specifically the FPTR relocations
   for dynamic functions used to initialize static data.  */

static boolean
elf64_hppa_finalize_dynreloc (dyn_h, data)
     struct elf64_hppa_dyn_hash_entry *dyn_h;
     PTR data;
{
  struct bfd_link_info *info = (struct bfd_link_info *)data;
  struct elf64_hppa_link_hash_table *hppa_info;
  struct elf_link_hash_entry *h;
  int dynamic_symbol;

  dynamic_symbol = elf64_hppa_dynamic_symbol_p (dyn_h->h, info);

  if (!dynamic_symbol && !info->shared)
    return true;

  if (dyn_h->reloc_entries)
    {
      struct elf64_hppa_dyn_reloc_entry *rent;
      int dynindx;

      hppa_info = elf64_hppa_hash_table (info);
      h = dyn_h->h;

      /* We may need to do a relocation against a local symbol, in
	 which case we have to look up it's dynamic symbol index off
	 the local symbol hash table.  */
      if (h && h->dynindx != -1)
	dynindx = h->dynindx;
      else
	dynindx
	  = _bfd_elf_link_lookup_local_dynindx (info, dyn_h->owner,
						dyn_h->sym_indx);

      for (rent = dyn_h->reloc_entries; rent; rent = rent->next)
	{
	  Elf64_Internal_Rela rel;

	  switch (rent->type)
	    {
	      case R_PARISC_FPTR64:
	      /* Allocate one iff we are not building a shared library and
		 !want_opd, which by this point will be true only if we're
		 actually allocating one statically in the main executable.  */
	      if (!info->shared && dyn_h->want_opd)
		continue;
	      break;
	    }

	  /* Create a dynamic relocation for this entry. 

	     We need the output offset for the reloc's section because
	     we are creating an absolute address in the resulting object
	     file.  */
	  rel.r_offset = (rent->offset + rent->sec->output_offset
			  + rent->sec->output_section->vma);

	  /* An FPTR64 relocation implies that we took the address of
	     a function and that the function has an entry in the .opd
	     section.  We want the FPTR64 relocation to reference the
	     entry in .opd.

	     We could munge the symbol value in the dynamic symbol table
	     (in fact we already do for functions with global scope) to point
	     to the .opd entry.  Then we could use that dynamic symbol in
	     this relocation.

	     Or we could do something sensible, not munge the symbol's
	     address and instead just use a different symbol to reference
	     the .opd entry.  At least that seems sensible until you
	     realize there's no local dynamic symbols we can use for that
	     purpose.  Thus the hair in the check_relocs routine.
	
	     We use a section symbol recorded by check_relocs as the
	     base symbol for the relocation.  The addend is the difference
	     between the section symbol and the address of the .opd entry.  */
	  if (info->shared && rent->type == R_PARISC_FPTR64)
	    {
	      bfd_vma value, value2;

	      /* First compute the address of the opd entry for this symbol.  */
	      value = (dyn_h->opd_offset
		       + hppa_info->opd_sec->output_section->vma
		       + hppa_info->opd_sec->output_offset);

	      /* Compute the value of the start of the section with
		 the relocation.  */
	      value2 = (rent->sec->output_section->vma
			+ rent->sec->output_offset);

	      /* Compute the difference between the start of the section
		 with the relocation and the opd entry.  */
	      value -= value2;
		
	      /* The result becomes the addend of the relocation.  */
	      rel.r_addend = value;

	      /* The section symbol becomes the symbol for the dynamic
		 relocation.  */
	      dynindx
		= _bfd_elf_link_lookup_local_dynindx (info,
						      rent->sec->owner,
						      rent->sec_symndx);
	    }
	  else
	    rel.r_addend = rent->addend;

	  rel.r_info = ELF64_R_INFO (dynindx, rent->type);

	  bfd_elf64_swap_reloca_out (hppa_info->other_rel_sec->output_section->owner,
				     &rel,
				     (((Elf64_External_Rela *)
				      hppa_info->other_rel_sec->contents)
				      + hppa_info->other_rel_sec->reloc_count));
	  hppa_info->other_rel_sec->reloc_count++;
	}
    }

  return true;
}

/* Finish up the dynamic sections.  */

static boolean
elf64_hppa_finish_dynamic_sections (output_bfd, info)
     bfd *output_bfd;
     struct bfd_link_info *info;
{
  bfd *dynobj;
  asection *sdyn;
  struct elf64_hppa_link_hash_table *hppa_info;

  hppa_info = elf64_hppa_hash_table (info);

  /* Finalize the contents of the .opd section.  */
  elf64_hppa_dyn_hash_traverse (&hppa_info->dyn_hash_table,
				elf64_hppa_finalize_opd,
				info);

  elf64_hppa_dyn_hash_traverse (&hppa_info->dyn_hash_table,
				elf64_hppa_finalize_dynreloc,
				info);

  /* Finalize the contents of the .dlt section.  */
  dynobj = elf_hash_table (info)->dynobj;
  /* Finalize the contents of the .dlt section.  */
  elf64_hppa_dyn_hash_traverse (&hppa_info->dyn_hash_table,
				elf64_hppa_finalize_dlt,
				info);


  sdyn = bfd_get_section_by_name (dynobj, ".dynamic");

  if (elf_hash_table (info)->dynamic_sections_created)
    {
      Elf64_External_Dyn *dyncon, *dynconend;

      BFD_ASSERT (sdyn != NULL);

      dyncon = (Elf64_External_Dyn *) sdyn->contents;
      dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
      for (; dyncon < dynconend; dyncon++)
	{
	  Elf_Internal_Dyn dyn;
	  asection *s;

	  bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);

	  switch (dyn.d_tag)
	    {
	    default:
	      break;

	    case DT_HP_LOAD_MAP:
	      /* Compute the absolute address of 16byte scratchpad area
		 for the dynamic linker.

		 By convention the linker script will allocate the scratchpad
		 area at the start of the .data section.  So all we have to
		 to is find the start of the .data section.  */
	      s = bfd_get_section_by_name (output_bfd, ".data");
	      dyn.d_un.d_ptr = s->vma;
	      bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
	      break;

	    case DT_PLTGOT:
	      /* HP's use PLTGOT to set the GOT register.  */
	      dyn.d_un.d_ptr = _bfd_get_gp_value (output_bfd);
	      bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
	      break;

	    case DT_JMPREL:
	      s = hppa_info->plt_rel_sec;
	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
	      bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
	      break;

	    case DT_PLTRELSZ:
	      s = hppa_info->plt_rel_sec;
	      dyn.d_un.d_val = s->_raw_size;
	      bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
	      break;

	    case DT_RELA:
	      s = hppa_info->other_rel_sec;
	      if (! s)
		s = hppa_info->dlt_rel_sec;
	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
	      bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
	      break;

	    case DT_RELASZ:
	      s = hppa_info->other_rel_sec;
	      dyn.d_un.d_val = s->_raw_size;
	      s = hppa_info->dlt_rel_sec;
	      dyn.d_un.d_val += s->_raw_size;
	      s = hppa_info->opd_rel_sec;
	      dyn.d_un.d_val += s->_raw_size;
	      /* There is some question about whether or not the size of
		 the PLT relocs should be included here.  HP's tools do
		 it, so we'll emulate them.  */
	      s = hppa_info->plt_rel_sec;
	      dyn.d_un.d_val += s->_raw_size;
	      bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
	      break;

	    }
	}
    }

  return true;
}


/* Return the number of additional phdrs we will need.

   The generic ELF code only creates PT_PHDRs for executables.  The HP
   dynamic linker requires PT_PHDRs for dynamic libraries too. 

   This routine indicates that the backend needs one additional program
   header for that case.

   Note we do not have access to the link info structure here, so we have
   to guess whether or not we are building a shared library based on the
   existence of a .interp section.  */

static int
elf64_hppa_additional_program_headers (abfd)
     bfd *abfd;
{
  asection *s;

  /* If we are creating a shared library, then we have to create a
     PT_PHDR segment.  HP's dynamic linker chokes without it.  */
  s = bfd_get_section_by_name (abfd, ".interp");
  if (! s)
    return 1;
  return 0;
}

/* Allocate and initialize any program headers required by this
   specific backend.

   The generic ELF code only creates PT_PHDRs for executables.  The HP
   dynamic linker requires PT_PHDRs for dynamic libraries too. 

   This allocates the PT_PHDR and initializes it in a manner suitable
   for the HP linker. 

   Note we do not have access to the link info structure here, so we have
   to guess whether or not we are building a shared library based on the
   existence of a .interp section.  */

static boolean
elf64_hppa_modify_segment_map (abfd)
     bfd *abfd;
{
  struct elf_segment_map *m;
  asection *s;

  s = bfd_get_section_by_name (abfd, ".interp");
  if (! s)
    {
      for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
	if (m->p_type == PT_PHDR)
	  break;
      if (m == NULL)
	{
	  m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m);
	  if (m == NULL)
	    return false;

	  m->p_type = PT_PHDR;
	  m->p_flags = PF_R | PF_X;
	  m->p_flags_valid = 1;
	  m->p_paddr_valid = 1;
	  m->includes_phdrs = 1;

	  m->next = elf_tdata (abfd)->segment_map;
	  elf_tdata (abfd)->segment_map = m;
	}
    }

  for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
    if (m->p_type == PT_LOAD)
      {
	unsigned int i;

	for (i = 0; i < m->count; i++)
	  {
	    /* The code "hint" is not really a hint.  It is a requirement
	       for certain versions of the HP dynamic linker.  Worse yet,
	       it must be set even if the shared library does not have
	       any code in its "text" segment (thus the check for .hash
	       to catch this situation).  */
	    if (m->sections[i]->flags & SEC_CODE
		|| (strcmp (m->sections[i]->name, ".hash") == 0))
	      m->p_flags |= (PF_X | PF_HP_CODE);
	  }
      }

  return true;
}

/* The hash bucket size is the standard one, namely 4.  */

const struct elf_size_info hppa64_elf_size_info =
{
  sizeof (Elf64_External_Ehdr),
  sizeof (Elf64_External_Phdr),
  sizeof (Elf64_External_Shdr),
  sizeof (Elf64_External_Rel),
  sizeof (Elf64_External_Rela),
  sizeof (Elf64_External_Sym),
  sizeof (Elf64_External_Dyn),
  sizeof (Elf_External_Note),
  4,
  1,
  64, 8,
  ELFCLASS64, EV_CURRENT,
  bfd_elf64_write_out_phdrs,
  bfd_elf64_write_shdrs_and_ehdr,
  bfd_elf64_write_relocs,
  bfd_elf64_swap_symbol_out,
  bfd_elf64_slurp_reloc_table,
  bfd_elf64_slurp_symbol_table,
  bfd_elf64_swap_dyn_in,
  bfd_elf64_swap_dyn_out,
  NULL,
  NULL,
  NULL,
  NULL
};

#define TARGET_BIG_SYM			bfd_elf64_hppa_vec
#define TARGET_BIG_NAME			"elf64-hppa"
#define ELF_ARCH			bfd_arch_hppa
#define ELF_MACHINE_CODE		EM_PARISC
/* This is not strictly correct.  The maximum page size for PA2.0 is
   64M.  But everything still uses 4k.  */
#define ELF_MAXPAGESIZE			0x1000
#define bfd_elf64_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
#define bfd_elf64_bfd_is_local_label_name       elf_hppa_is_local_label_name
#define elf_info_to_howto		elf_hppa_info_to_howto
#define elf_info_to_howto_rel		elf_hppa_info_to_howto_rel

#define elf_backend_section_from_shdr	elf64_hppa_section_from_shdr
#define elf_backend_object_p		elf64_hppa_object_p
#define elf_backend_final_write_processing \
					elf_hppa_final_write_processing
#define elf_backend_fake_sections 	elf_hppa_fake_sections
#define elf_backend_add_symbol_hook	elf_hppa_add_symbol_hook

#define elf_backend_relocate_section	    elf_hppa_relocate_section

#define bfd_elf64_bfd_final_link	elf_hppa_final_link

#define elf_backend_create_dynamic_sections \
					elf64_hppa_create_dynamic_sections
#define elf_backend_post_process_headers	elf64_hppa_post_process_headers

#define elf_backend_adjust_dynamic_symbol \
					elf64_hppa_adjust_dynamic_symbol

#define elf_backend_size_dynamic_sections \
					elf64_hppa_size_dynamic_sections

#define elf_backend_finish_dynamic_symbol \
					elf64_hppa_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
					elf64_hppa_finish_dynamic_sections

/* Stuff for the BFD linker: */
#define bfd_elf64_bfd_link_hash_table_create \
	elf64_hppa_hash_table_create

#define elf_backend_check_relocs \
	elf64_hppa_check_relocs

#define elf_backend_size_info \
  hppa64_elf_size_info

#define elf_backend_additional_program_headers \
	elf64_hppa_additional_program_headers

#define elf_backend_modify_segment_map \
	elf64_hppa_modify_segment_map

#define elf_backend_link_output_symbol_hook \
	elf64_hppa_link_output_symbol_hook


#define elf_backend_want_got_plt	0
#define elf_backend_plt_readonly	0
#define elf_backend_want_plt_sym	0
#define elf_backend_got_header_size     0
#define elf_backend_plt_header_size     0
#define elf_backend_type_change_ok true

#include "elf64-target.h"