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
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
|
/* Support for HPPA 64-bit ELF
Copyright (C) 1999-2024 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 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/hppa.h"
#include "libhppa.h"
#include "elf64-hppa.h"
#include "libiberty.h"
/* Target vectors for HPUX and non-HPUX versions of HPPA ELF binaries. */
extern const bfd_target hppa_elf64_vec;
extern const bfd_target hppa_elf64_linux_vec;
#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_link_hash_entry
{
struct elf_link_hash_entry eh;
/* 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 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. */
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;
/* Number of relocs copied in this section. */
bfd_size_type count;
/* 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_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 *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;
/* 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 hppa_link_hash_table(p) \
((is_elf_hash_table ((p)->hash) \
&& elf_hash_table_id (elf_hash_table (p)) == HPPA64_ELF_DATA) \
? (struct elf64_hppa_link_hash_table *) (p)->hash : NULL)
#define hppa_elf_hash_entry(ent) \
((struct elf64_hppa_link_hash_entry *)(ent))
#define eh_name(eh) \
(eh ? eh->root.root.string : "<undef>")
typedef struct bfd_hash_entry *(*new_hash_entry_func)
(struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
static struct bfd_link_hash_table *elf64_hppa_hash_table_create
(bfd *abfd);
/* This must follow the definitions of the various derived linker
hash tables and shared functions. */
#include "elf-hppa.h"
static bool elf64_hppa_object_p
(bfd *);
static bool elf64_hppa_create_dynamic_sections
(bfd *, struct bfd_link_info *);
static bool elf64_hppa_adjust_dynamic_symbol
(struct bfd_link_info *, struct elf_link_hash_entry *);
static bool elf64_hppa_mark_milli_and_exported_functions
(struct elf_link_hash_entry *, void *);
static int elf64_hppa_link_output_symbol_hook
(struct bfd_link_info *, const char *, Elf_Internal_Sym *,
asection *, struct elf_link_hash_entry *);
static bool elf64_hppa_finish_dynamic_symbol
(bfd *, struct bfd_link_info *,
struct elf_link_hash_entry *, Elf_Internal_Sym *);
static bool elf64_hppa_finish_dynamic_sections
(bfd *, struct bfd_link_info *);
static bool elf64_hppa_check_relocs
(bfd *, struct bfd_link_info *,
asection *, const Elf_Internal_Rela *);
static bool elf64_hppa_dynamic_symbol_p
(struct elf_link_hash_entry *, struct bfd_link_info *);
static bool elf64_hppa_mark_exported_functions
(struct elf_link_hash_entry *, void *);
static bool elf64_hppa_finalize_opd
(struct elf_link_hash_entry *, void *);
static bool elf64_hppa_finalize_dlt
(struct elf_link_hash_entry *, void *);
static bool allocate_global_data_dlt
(struct elf_link_hash_entry *, void *);
static bool allocate_global_data_plt
(struct elf_link_hash_entry *, void *);
static bool allocate_global_data_stub
(struct elf_link_hash_entry *, void *);
static bool allocate_global_data_opd
(struct elf_link_hash_entry *, void *);
static bool get_reloc_section
(bfd *, struct elf64_hppa_link_hash_table *, asection *);
static bool count_dyn_reloc
(bfd *, struct elf64_hppa_link_hash_entry *,
int, asection *, int, bfd_vma, bfd_vma);
static bool allocate_dynrel_entries
(struct elf_link_hash_entry *, void *);
static bool elf64_hppa_finalize_dynreloc
(struct elf_link_hash_entry *, void *);
static bool get_opd
(bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *);
static bool get_plt
(bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *);
static bool get_dlt
(bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *);
static bool get_stub
(bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *);
static int elf64_hppa_elf_get_symbol_type
(Elf_Internal_Sym *, int);
/* Initialize an entry in the link hash table. */
static struct bfd_hash_entry *
hppa64_link_hash_newfunc (struct bfd_hash_entry *entry,
struct bfd_hash_table *table,
const char *string)
{
/* Allocate the structure if it has not already been allocated by a
subclass. */
if (entry == NULL)
{
entry = bfd_hash_allocate (table,
sizeof (struct elf64_hppa_link_hash_entry));
if (entry == NULL)
return entry;
}
/* Call the allocation method of the superclass. */
entry = _bfd_elf_link_hash_newfunc (entry, table, string);
if (entry != NULL)
{
struct elf64_hppa_link_hash_entry *hh;
/* Initialize our local data. All zeros. */
hh = hppa_elf_hash_entry (entry);
memset (&hh->dlt_offset, 0,
(sizeof (struct elf64_hppa_link_hash_entry)
- offsetof (struct elf64_hppa_link_hash_entry, dlt_offset)));
}
return entry;
}
/* 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 (bfd *abfd)
{
struct elf64_hppa_link_hash_table *htab;
size_t amt = sizeof (*htab);
htab = bfd_zmalloc (amt);
if (htab == NULL)
return NULL;
if (!_bfd_elf_link_hash_table_init (&htab->root, abfd,
hppa64_link_hash_newfunc,
sizeof (struct elf64_hppa_link_hash_entry),
HPPA64_ELF_DATA))
{
free (htab);
return NULL;
}
htab->root.dt_pltgot_required = true;
htab->text_segment_base = (bfd_vma) -1;
htab->data_segment_base = (bfd_vma) -1;
return &htab->root.root;
}
/* Return nonzero if ABFD represents a PA2.0 ELF64 file.
Additionally we set the default architecture and machine. */
static bool
elf64_hppa_object_p (bfd *abfd)
{
Elf_Internal_Ehdr * i_ehdrp;
unsigned int flags;
i_ehdrp = elf_elfheader (abfd);
if (abfd->xvec == & hppa_elf64_linux_vec)
{
/* GCC on hppa-linux produces binaries with OSABI=GNU,
but the kernel produces corefiles with OSABI=SysV. */
if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU
&& i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
return false;
}
else
{
/* HPUX produces binaries with OSABI=HPUX,
but the kernel produces corefiles with OSABI=SysV. */
if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX
&& i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
return false;
}
flags = i_ehdrp->e_flags;
switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
{
case EFA_PARISC_1_0:
return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
case EFA_PARISC_1_1:
return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
case EFA_PARISC_2_0:
if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64)
return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
else
return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
case EFA_PARISC_2_0 | EF_PARISC_WIDE:
return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
}
/* Don't be fussy. */
return true;
}
/* Given section type (hdr->sh_type), return a boolean indicating
whether or not the section is an elf64-hppa specific section. */
static bool
elf64_hppa_section_from_shdr (bfd *abfd,
Elf_Internal_Shdr *hdr,
const char *name,
int shindex)
{
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, shindex))
return false;
return ((hdr->sh_flags & SHF_PARISC_SHORT) == 0
|| bfd_set_section_flags (hdr->bfd_section,
hdr->bfd_section->flags | SEC_SMALL_DATA));
}
/* 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 bool
get_reloc_section (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,
_bfd_elf_single_rel_hdr(sec)->sh_name));
if (srel_name == NULL)
return false;
dynobj = hppa_info->root.dynobj;
if (!dynobj)
hppa_info->root.dynobj = dynobj = abfd;
srel = bfd_get_linker_section (dynobj, srel_name);
if (srel == NULL)
{
srel = bfd_make_section_anyway_with_flags (dynobj, srel_name,
(SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
| SEC_READONLY));
if (srel == NULL
|| !bfd_set_section_alignment (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 bool
count_dyn_reloc (bfd *abfd,
struct elf64_hppa_link_hash_entry *hh,
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, (bfd_size_type) sizeof (*rent));
if (!rent)
return false;
rent->next = hh->reloc_entries;
rent->type = type;
rent->sec = sec;
rent->sec_symndx = sec_symndx;
rent->offset = offset;
rent->addend = addend;
hh->reloc_entries = rent;
return true;
}
/* Return a pointer to the local DLT, PLT and OPD reference counts
for ABFD. Returns NULL if the storage allocation fails. */
static bfd_signed_vma *
hppa64_elf_local_refcounts (bfd *abfd)
{
Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
bfd_signed_vma *local_refcounts;
local_refcounts = elf_local_got_refcounts (abfd);
if (local_refcounts == NULL)
{
bfd_size_type size;
/* Allocate space for local DLT, PLT and OPD reference
counts. Done this way to save polluting elf_obj_tdata
with another target specific pointer. */
size = symtab_hdr->sh_info;
size *= 3 * sizeof (bfd_signed_vma);
local_refcounts = bfd_zalloc (abfd, size);
elf_local_got_refcounts (abfd) = local_refcounts;
}
return local_refcounts;
}
/* Scan the RELOCS and record the type of dynamic entries that each
referenced symbol needs. */
static bool
elf64_hppa_check_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;
unsigned int sec_symndx;
if (bfd_link_relocatable (info))
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_elf_link_create_dynamic_sections (abfd, info))
return false;
}
hppa_info = hppa_link_hash_table (info);
if (hppa_info == NULL)
return false;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
/* If necessary, build a new table holding section symbols indices
for this BFD. */
if (bfd_link_pic (info) && hppa_info->section_syms_bfd != abfd)
{
unsigned long i;
unsigned int highest_shndx;
Elf_Internal_Sym *local_syms = NULL;
Elf_Internal_Sym *isym, *isymend;
bfd_size_type amt;
/* 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. */
free (hppa_info->section_syms);
/* Read this BFD's local symbols. */
if (symtab_hdr->sh_info != 0)
{
local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
if (local_syms == NULL)
local_syms = bfd_elf_get_elf_syms (abfd, symtab_hdr,
symtab_hdr->sh_info, 0,
NULL, NULL, NULL);
if (local_syms == NULL)
return false;
}
/* Record the highest section index referenced by the local symbols. */
highest_shndx = 0;
isymend = local_syms + symtab_hdr->sh_info;
for (isym = local_syms; isym < isymend; isym++)
{
if (isym->st_shndx > highest_shndx
&& isym->st_shndx < SHN_LORESERVE)
highest_shndx = isym->st_shndx;
}
/* Allocate an array to hold the section index to section symbol index
mapping. Bump by one since we start counting at zero. */
highest_shndx++;
amt = highest_shndx;
amt *= sizeof (int);
hppa_info->section_syms = (int *) bfd_malloc (amt);
/* Now walk the local symbols again. If we find a section symbol,
record the index of the symbol into the section_syms array. */
for (i = 0, isym = local_syms; isym < isymend; 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. */
if (local_syms != NULL
&& symtab_hdr->contents != (unsigned char *) local_syms)
{
if (! info->keep_memory)
free (local_syms);
else
{
/* Cache the symbols for elf_link_input_bfd. */
symtab_hdr->contents = (unsigned char *) 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 (bfd_link_pic (info))
{
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 == SHN_BAD)
return false;
if (sec_symndx < SHN_LORESERVE)
sec_symndx = hppa_info->section_syms[sec_symndx];
else
sec_symndx = 0;
}
else
sec_symndx = 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,
};
unsigned long r_symndx = ELF64_R_SYM (rel->r_info);
struct elf64_hppa_link_hash_entry *hh;
int need_entry;
bool 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;
hh = hppa_elf_hash_entry (elf_sym_hashes (abfd)[indx]);
while (hh->eh.root.type == bfd_link_hash_indirect
|| hh->eh.root.type == bfd_link_hash_warning)
hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
/* PR15323, ref flags aren't set for references in the same
object. */
hh->eh.ref_regular = 1;
}
else
hh = NULL;
/* 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 (hh && ((bfd_link_pic (info)
&& (!info->symbolic
|| info->unresolved_syms_in_shared_libs == RM_IGNORE))
|| !hh->eh.def_regular
|| hh->eh.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_PCREL12F:
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:
/* Function calls might need to go through the .plt, and
might need a long branch stub. */
if (hh != NULL && hh->eh.type != STT_PARISC_MILLI)
need_entry = (NEED_PLT | NEED_STUB);
else
need_entry = 0;
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 (bfd_link_pic (info) || 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 (bfd_link_pic (info) || maybe_dynamic)
need_entry = (NEED_DLT | NEED_OPD | NEED_PLT);
else
need_entry = (NEED_DLT | NEED_OPD | NEED_PLT);
dynrel_type = R_PARISC_FPTR64;
break;
/* This is a simple OPD entry. */
case R_PARISC_FPTR64:
if (bfd_link_pic (info) || maybe_dynamic)
need_entry = (NEED_OPD | NEED_PLT | NEED_DYNREL);
else
need_entry = (NEED_OPD | NEED_PLT);
dynrel_type = R_PARISC_FPTR64;
break;
/* Add more cases as needed. */
}
if (!need_entry)
continue;
if (hh)
{
/* Stash away enough information to be able to find this symbol
regardless of whether or not it is local or global. */
hh->owner = abfd;
hh->sym_indx = r_symndx;
}
/* Create what's needed. */
if (need_entry & NEED_DLT)
{
/* Allocate space for a DLT entry, as well as a dynamic
relocation for this entry. */
if (! hppa_info->dlt_sec
&& ! get_dlt (abfd, info, hppa_info))
goto err_out;
if (hh != NULL)
{
hh->want_dlt = 1;
hh->eh.got.refcount += 1;
}
else
{
bfd_signed_vma *local_dlt_refcounts;
/* This is a DLT entry for a local symbol. */
local_dlt_refcounts = hppa64_elf_local_refcounts (abfd);
if (local_dlt_refcounts == NULL)
return false;
local_dlt_refcounts[r_symndx] += 1;
}
}
if (need_entry & NEED_PLT)
{
if (! hppa_info->root.splt
&& ! get_plt (abfd, info, hppa_info))
goto err_out;
if (hh != NULL)
{
hh->want_plt = 1;
hh->eh.needs_plt = 1;
hh->eh.plt.refcount += 1;
}
else
{
bfd_signed_vma *local_dlt_refcounts;
bfd_signed_vma *local_plt_refcounts;
/* This is a PLT entry for a local symbol. */
local_dlt_refcounts = hppa64_elf_local_refcounts (abfd);
if (local_dlt_refcounts == NULL)
return false;
local_plt_refcounts = local_dlt_refcounts + symtab_hdr->sh_info;
local_plt_refcounts[r_symndx] += 1;
}
}
if (need_entry & NEED_STUB)
{
if (! hppa_info->stub_sec
&& ! get_stub (abfd, info, hppa_info))
goto err_out;
if (hh)
hh->want_stub = 1;
}
if (need_entry & NEED_OPD)
{
if (! hppa_info->opd_sec
&& ! get_opd (abfd, info, hppa_info))
goto err_out;
/* FPTRs are not allocated by the dynamic linker for PA64,
though it is possible that will change in the future. */
if (hh != NULL)
hh->want_opd = 1;
else
{
bfd_signed_vma *local_dlt_refcounts;
bfd_signed_vma *local_opd_refcounts;
/* This is a OPD for a local symbol. */
local_dlt_refcounts = hppa64_elf_local_refcounts (abfd);
if (local_dlt_refcounts == NULL)
return false;
local_opd_refcounts = (local_dlt_refcounts
+ 2 * symtab_hdr->sh_info);
local_opd_refcounts[r_symndx] += 1;
}
}
/* 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;
/* Count dynamic relocations against global symbols. */
if (hh != NULL
&& !count_dyn_reloc (abfd, hh, 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 (bfd_link_pic (info) && dynrel_type == R_PARISC_FPTR64
&& ! (bfd_elf_link_record_local_dynamic_symbol
(info, abfd, sec_symndx)))
return false;
}
}
return true;
err_out:
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 bool
elf64_hppa_dynamic_symbol_p (struct elf_link_hash_entry *eh,
struct bfd_link_info *info)
{
/* ??? What, if anything, needs to happen wrt STV_PROTECTED symbols
and relocations that retrieve a function descriptor? Assume the
worst for now. */
if (_bfd_elf_dynamic_symbol_p (eh, info, 1))
{
/* ??? Why is this here and not elsewhere is_local_label_name. */
if (eh->root.root.string[0] == '$' && eh->root.root.string[1] == '$')
return false;
return true;
}
else
return false;
}
/* Mark all functions exported by this file so that we can later allocate
entries in .opd for them. */
static bool
elf64_hppa_mark_exported_functions (struct elf_link_hash_entry *eh, void *data)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
struct bfd_link_info *info = (struct bfd_link_info *)data;
struct elf64_hppa_link_hash_table *hppa_info;
hppa_info = hppa_link_hash_table (info);
if (hppa_info == NULL)
return false;
if (eh
&& (eh->root.type == bfd_link_hash_defined
|| eh->root.type == bfd_link_hash_defweak)
&& eh->root.u.def.section->output_section != NULL
&& eh->type == STT_FUNC)
{
if (! hppa_info->opd_sec
&& ! get_opd (hppa_info->root.dynobj, info, hppa_info))
return false;
hh->want_opd = 1;
/* Put a flag here for output_symbol_hook. */
hh->st_shndx = -1;
eh->needs_plt = 1;
}
return true;
}
/* Allocate space for a DLT entry. */
static bool
allocate_global_data_dlt (struct elf_link_hash_entry *eh, void *data)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;
if (hh->want_dlt)
{
if (bfd_link_pic (x->info))
{
/* Possibly add the symbol to the local dynamic symbol
table since we might need to create a dynamic relocation
against it. */
if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI)
{
bfd *owner = eh->root.u.def.section->owner;
if (! (bfd_elf_link_record_local_dynamic_symbol
(x->info, owner, hh->sym_indx)))
return false;
}
}
hh->dlt_offset = x->ofs;
x->ofs += DLT_ENTRY_SIZE;
}
return true;
}
/* Allocate space for a DLT.PLT entry. */
static bool
allocate_global_data_plt (struct elf_link_hash_entry *eh, void *data)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *) data;
if (hh->want_plt
&& elf64_hppa_dynamic_symbol_p (eh, x->info)
&& !((eh->root.type == bfd_link_hash_defined
|| eh->root.type == bfd_link_hash_defweak)
&& eh->root.u.def.section->output_section != NULL))
{
hh->plt_offset = x->ofs;
x->ofs += PLT_ENTRY_SIZE;
if (hh->plt_offset < 0x2000)
{
struct elf64_hppa_link_hash_table *hppa_info;
hppa_info = hppa_link_hash_table (x->info);
if (hppa_info == NULL)
return false;
hppa_info->gp_offset = hh->plt_offset;
}
}
else
hh->want_plt = 0;
return true;
}
/* Allocate space for a STUB entry. */
static bool
allocate_global_data_stub (struct elf_link_hash_entry *eh, void *data)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;
if (hh->want_stub
&& elf64_hppa_dynamic_symbol_p (eh, x->info)
&& !((eh->root.type == bfd_link_hash_defined
|| eh->root.type == bfd_link_hash_defweak)
&& eh->root.u.def.section->output_section != NULL))
{
hh->stub_offset = x->ofs;
x->ofs += sizeof (plt_stub);
}
else
hh->want_stub = 0;
return true;
}
/* Allocate space for a FPTR entry. */
static bool
allocate_global_data_opd (struct elf_link_hash_entry *eh, void *data)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data;
if (hh && hh->want_opd)
{
/* We never need an opd entry for a symbol which is not
defined by this output file. */
if (hh && (hh->eh.root.type == bfd_link_hash_undefined
|| hh->eh.root.type == bfd_link_hash_undefweak
|| hh->eh.root.u.def.section->output_section == NULL))
hh->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 (bfd_link_pic (x->info)
|| hh == NULL
|| (hh->eh.dynindx == -1 && hh->eh.type != STT_PARISC_MILLI)
|| (hh->eh.root.type == bfd_link_hash_defined
|| hh->eh.root.type == bfd_link_hash_defweak))
{
/* 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 (bfd_link_pic (x->info)
&& (hh == NULL || (hh->eh.dynindx == -1)))
{
bfd *owner;
/* PR 6511: Default to using the dynamic symbol table. */
owner = (hh->owner ? hh->owner: eh->root.u.def.section->owner);
if (!bfd_elf_link_record_local_dynamic_symbol
(x->info, owner, hh->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 (bfd_link_pic (x->info) && eh)
{
char *new_name;
struct elf_link_hash_entry *nh;
new_name = concat (".", eh->root.root.string, NULL);
nh = elf_link_hash_lookup (elf_hash_table (x->info),
new_name, true, true, true);
free (new_name);
nh->root.type = eh->root.type;
nh->root.u.def.value = eh->root.u.def.value;
nh->root.u.def.section = eh->root.u.def.section;
if (! bfd_elf_link_record_dynamic_symbol (x->info, nh))
return false;
}
hh->opd_offset = x->ofs;
x->ofs += OPD_ENTRY_SIZE;
}
/* Otherwise we do not need an opd entry. */
else
hh->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 bool
elf64_hppa_init_file_header (bfd *abfd, struct bfd_link_info *info)
{
Elf_Internal_Ehdr *i_ehdrp;
if (!_bfd_elf_init_file_header (abfd, info))
return false;
i_ehdrp = elf_elfheader (abfd);
i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi;
i_ehdrp->e_ident[EI_ABIVERSION] = 1;
return true;
}
/* Create function descriptor section (.opd). This section is called .opd
because it contains "official procedure 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 bool
get_opd (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_anyway_with_flags (dynobj, ".opd",
(SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED));
if (!opd
|| !bfd_set_section_alignment (opd, 3))
{
BFD_ASSERT (0);
return false;
}
hppa_info->opd_sec = opd;
}
return true;
}
/* Create the PLT section. */
static bool
get_plt (bfd *abfd,
struct bfd_link_info *info ATTRIBUTE_UNUSED,
struct elf64_hppa_link_hash_table *hppa_info)
{
asection *plt;
bfd *dynobj;
plt = hppa_info->root.splt;
if (!plt)
{
dynobj = hppa_info->root.dynobj;
if (!dynobj)
hppa_info->root.dynobj = dynobj = abfd;
plt = bfd_make_section_anyway_with_flags (dynobj, ".plt",
(SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED));
if (!plt
|| !bfd_set_section_alignment (plt, 3))
{
BFD_ASSERT (0);
return false;
}
hppa_info->root.splt = plt;
}
return true;
}
/* Create the DLT section. */
static bool
get_dlt (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_anyway_with_flags (dynobj, ".dlt",
(SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED));
if (!dlt
|| !bfd_set_section_alignment (dlt, 3))
{
BFD_ASSERT (0);
return false;
}
hppa_info->dlt_sec = dlt;
}
return true;
}
/* Create the stubs section. */
static bool
get_stub (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_anyway_with_flags (dynobj, ".stub",
(SEC_ALLOC | SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_READONLY
| SEC_LINKER_CREATED));
if (!stub
|| !bfd_set_section_alignment (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 bool
elf64_hppa_create_dynamic_sections (bfd *abfd,
struct bfd_link_info *info)
{
asection *s;
struct elf64_hppa_link_hash_table *hppa_info;
hppa_info = hppa_link_hash_table (info);
if (hppa_info == NULL)
return false;
if (! get_stub (abfd, info, hppa_info))
return false;
if (! get_dlt (abfd, info, hppa_info))
return false;
if (! get_plt (abfd, info, hppa_info))
return false;
if (! get_opd (abfd, info, hppa_info))
return false;
s = bfd_make_section_anyway_with_flags (abfd, ".rela.dlt",
(SEC_ALLOC | SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_READONLY
| SEC_LINKER_CREATED));
if (s == NULL
|| !bfd_set_section_alignment (s, 3))
return false;
hppa_info->dlt_rel_sec = s;
s = bfd_make_section_anyway_with_flags (abfd, ".rela.plt",
(SEC_ALLOC | SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_READONLY
| SEC_LINKER_CREATED));
if (s == NULL
|| !bfd_set_section_alignment (s, 3))
return false;
hppa_info->root.srelplt = s;
s = bfd_make_section_anyway_with_flags (abfd, ".rela.data",
(SEC_ALLOC | SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_READONLY
| SEC_LINKER_CREATED));
if (s == NULL
|| !bfd_set_section_alignment (s, 3))
return false;
hppa_info->other_rel_sec = s;
s = bfd_make_section_anyway_with_flags (abfd, ".rela.opd",
(SEC_ALLOC | SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_READONLY
| SEC_LINKER_CREATED));
if (s == NULL
|| !bfd_set_section_alignment (s, 3))
return false;
hppa_info->opd_rel_sec = s;
return true;
}
/* Allocate dynamic relocations for those symbols that turned out
to be dynamic. */
static bool
allocate_dynrel_entries (struct elf_link_hash_entry *eh, void *data)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
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;
bool dynamic_symbol, shared;
hppa_info = hppa_link_hash_table (x->info);
if (hppa_info == NULL)
return false;
dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, x->info);
shared = bfd_link_pic (x->info);
/* 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 = hh->reloc_entries; rent; rent = rent->next)
{
/* Allocate one iff we are building a shared library, the relocation
isn't a R_PARISC_FPTR64, or we don't want an opd entry. */
if (!shared && rent->type == R_PARISC_FPTR64 && hh->want_opd)
continue;
hppa_info->other_rel_sec->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 (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI)
if (!bfd_elf_link_record_local_dynamic_symbol
(x->info, rent->sec->owner, hh->sym_indx))
return false;
}
/* Take care of the GOT and PLT relocations. */
if ((dynamic_symbol || shared) && hh->want_dlt)
hppa_info->dlt_rel_sec->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 && hh->want_opd)
hppa_info->opd_rel_sec->size += sizeof (Elf64_External_Rela);
if (hh->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->root.srelplt->size += t;
}
return true;
}
/* Adjust a symbol defined by a dynamic object and referenced by a
regular object. */
static bool
elf64_hppa_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED,
struct elf_link_hash_entry *eh)
{
/* ??? 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 (eh->is_weakalias)
{
struct elf_link_hash_entry *def = weakdef (eh);
BFD_ASSERT (def->root.type == bfd_link_hash_defined);
eh->root.u.def.section = def->root.u.def.section;
eh->root.u.def.value = def->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;
}
/* This function is called via elf_link_hash_traverse to mark millicode
symbols with a dynindx of -1 and to remove the string table reference
from the dynamic symbol table. If the symbol is not a millicode symbol,
elf64_hppa_mark_exported_functions is called. */
static bool
elf64_hppa_mark_milli_and_exported_functions (struct elf_link_hash_entry *eh,
void *data)
{
struct bfd_link_info *info = (struct bfd_link_info *) data;
if (eh->type == STT_PARISC_MILLI)
{
if (eh->dynindx != -1)
{
eh->dynindx = -1;
_bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
eh->dynstr_index);
}
return true;
}
return elf64_hppa_mark_exported_functions (eh, data);
}
/* Set the final sizes of the dynamic sections and allocate memory for
the contents of our special sections. */
static bool
elf64_hppa_late_size_sections (bfd *output_bfd, struct bfd_link_info *info)
{
struct elf64_hppa_link_hash_table *hppa_info;
struct elf64_hppa_allocate_data data;
bfd *dynobj;
bfd *ibfd;
asection *sec;
bool relocs;
hppa_info = hppa_link_hash_table (info);
if (hppa_info == NULL)
return false;
dynobj = hppa_info->root.dynobj;
if (dynobj == NULL)
return true;
/* Mark each function this program exports so that we will allocate
space in the .opd section for each function's FPTR. If we are
creating dynamic sections, change the dynamic index of millicode
symbols to -1 and remove them from the string table for .dynstr.
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 (&hppa_info->root,
(hppa_info->root.dynamic_sections_created
? elf64_hppa_mark_milli_and_exported_functions
: elf64_hppa_mark_exported_functions),
info);
if (hppa_info->root.dynamic_sections_created)
{
/* Set the contents of the .interp section to the interpreter. */
if (bfd_link_executable (info) && !info->nointerp)
{
sec = bfd_get_linker_section (dynobj, ".interp");
BFD_ASSERT (sec != NULL);
sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
sec->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. */
sec = hppa_info->dlt_rel_sec;
if (sec != NULL)
sec->size = 0;
}
/* Set up DLT, PLT and OPD offsets for local syms, and space for local
dynamic relocs. */
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
{
bfd_signed_vma *local_dlt;
bfd_signed_vma *end_local_dlt;
bfd_signed_vma *local_plt;
bfd_signed_vma *end_local_plt;
bfd_signed_vma *local_opd;
bfd_signed_vma *end_local_opd;
bfd_size_type locsymcount;
Elf_Internal_Shdr *symtab_hdr;
asection *srel;
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
continue;
for (sec = ibfd->sections; sec != NULL; sec = sec->next)
{
struct elf64_hppa_dyn_reloc_entry *hdh_p;
for (hdh_p = ((struct elf64_hppa_dyn_reloc_entry *)
elf_section_data (sec)->local_dynrel);
hdh_p != NULL;
hdh_p = hdh_p->next)
{
if (!bfd_is_abs_section (hdh_p->sec)
&& bfd_is_abs_section (hdh_p->sec->output_section))
{
/* Input section has been discarded, either because
it is a copy of a linkonce section or due to
linker script /DISCARD/, so we'll be discarding
the relocs too. */
}
else if (hdh_p->count != 0)
{
srel = elf_section_data (hdh_p->sec)->sreloc;
srel->size += hdh_p->count * sizeof (Elf64_External_Rela);
if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
info->flags |= DF_TEXTREL;
}
}
}
local_dlt = elf_local_got_refcounts (ibfd);
if (!local_dlt)
continue;
symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
locsymcount = symtab_hdr->sh_info;
end_local_dlt = local_dlt + locsymcount;
sec = hppa_info->dlt_sec;
srel = hppa_info->dlt_rel_sec;
for (; local_dlt < end_local_dlt; ++local_dlt)
{
if (*local_dlt > 0)
{
*local_dlt = sec->size;
sec->size += DLT_ENTRY_SIZE;
if (bfd_link_pic (info))
{
srel->size += sizeof (Elf64_External_Rela);
}
}
else
*local_dlt = (bfd_vma) -1;
}
local_plt = end_local_dlt;
end_local_plt = local_plt + locsymcount;
if (! hppa_info->root.dynamic_sections_created)
{
/* Won't be used, but be safe. */
for (; local_plt < end_local_plt; ++local_plt)
*local_plt = (bfd_vma) -1;
}
else
{
sec = hppa_info->root.splt;
srel = hppa_info->root.srelplt;
for (; local_plt < end_local_plt; ++local_plt)
{
if (*local_plt > 0)
{
*local_plt = sec->size;
sec->size += PLT_ENTRY_SIZE;
if (bfd_link_pic (info))
srel->size += sizeof (Elf64_External_Rela);
}
else
*local_plt = (bfd_vma) -1;
}
}
local_opd = end_local_plt;
end_local_opd = local_opd + locsymcount;
if (! hppa_info->root.dynamic_sections_created)
{
/* Won't be used, but be safe. */
for (; local_opd < end_local_opd; ++local_opd)
*local_opd = (bfd_vma) -1;
}
else
{
sec = hppa_info->opd_sec;
srel = hppa_info->opd_rel_sec;
for (; local_opd < end_local_opd; ++local_opd)
{
if (*local_opd > 0)
{
*local_opd = sec->size;
sec->size += OPD_ENTRY_SIZE;
if (bfd_link_pic (info))
srel->size += sizeof (Elf64_External_Rela);
}
else
*local_opd = (bfd_vma) -1;
}
}
}
/* Allocate the GOT entries. */
data.info = info;
if (hppa_info->dlt_sec)
{
data.ofs = hppa_info->dlt_sec->size;
elf_link_hash_traverse (&hppa_info->root,
allocate_global_data_dlt, &data);
hppa_info->dlt_sec->size = data.ofs;
}
if (hppa_info->root.splt)
{
data.ofs = hppa_info->root.splt->size;
elf_link_hash_traverse (&hppa_info->root,
allocate_global_data_plt, &data);
hppa_info->root.splt->size = data.ofs;
}
if (hppa_info->stub_sec)
{
data.ofs = 0x0;
elf_link_hash_traverse (&hppa_info->root,
allocate_global_data_stub, &data);
hppa_info->stub_sec->size = data.ofs;
}
/* Allocate space for entries in the .opd section. */
if (hppa_info->opd_sec)
{
data.ofs = hppa_info->opd_sec->size;
elf_link_hash_traverse (&hppa_info->root,
allocate_global_data_opd, &data);
hppa_info->opd_sec->size = data.ofs;
}
/* Now allocate space for dynamic relocations, if necessary. */
if (hppa_info->root.dynamic_sections_created)
elf_link_hash_traverse (&hppa_info->root,
allocate_dynrel_entries, &data);
/* The sizes of all the sections are set. Allocate memory for them. */
relocs = false;
for (sec = dynobj->sections; sec != NULL; sec = sec->next)
{
const char *name;
if ((sec->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_section_name (sec);
if (strcmp (name, ".plt") == 0)
{
/* Remember whether there is a PLT. */
;
}
else if (strcmp (name, ".opd") == 0
|| startswith (name, ".dlt")
|| strcmp (name, ".stub") == 0
|| strcmp (name, ".got") == 0)
{
/* Strip this section if we don't need it; see the comment below. */
}
else if (startswith (name, ".rela"))
{
if (sec->size != 0)
{
/* Remember whether there are any reloc sections other
than .rela.plt. */
if (strcmp (name, ".rela.plt") != 0)
relocs = true;
/* We use the reloc_count field as a counter if we need
to copy relocs into the output file. */
sec->reloc_count = 0;
}
}
else
{
/* It's not one of our sections, so don't allocate space. */
continue;
}
if (sec->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. */
sec->flags |= SEC_EXCLUDE;
continue;
}
if ((sec->flags & SEC_HAS_CONTENTS) == 0)
continue;
/* Allocate memory for the section contents if it has not
been allocated already. We use bfd_zalloc here in case
unused entries are not reclaimed before the section's
contents are written out. This should not happen, but this
way if it does, we get a R_PARISC_NONE reloc instead of
garbage. */
if (sec->contents == NULL)
{
sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size);
if (sec->contents == NULL)
return false;
}
}
if (hppa_info->root.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. */
#define add_dynamic_entry(TAG, VAL) \
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
if (!add_dynamic_entry (DT_HP_DLD_FLAGS, 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 (! bfd_link_pic (info))
{
if (!add_dynamic_entry (DT_HP_DLD_HOOK, 0)
|| !add_dynamic_entry (DT_HP_LOAD_MAP, 0))
return false;
}
/* Force DT_FLAGS to always be set.
Required by HPUX 11.00 patch PHSS_26559.
PR 30743: But do not set them for non-HPUX targets. */
if (output_bfd->xvec == & hppa_elf64_vec)
{
if (!add_dynamic_entry (DT_FLAGS, (info)->flags))
return false;
}
}
#undef add_dynamic_entry
return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs);
}
/* 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 int
elf64_hppa_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
const char *name,
Elf_Internal_Sym *sym,
asection *input_sec ATTRIBUTE_UNUSED,
struct elf_link_hash_entry *eh)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
/* We may be called with the file symbol or section symbols.
They never need munging, so it is safe to ignore them. */
if (!name || !eh)
return 1;
/* Function symbols for which we created .opd entries *may* have been
munged by finish_dynamic_symbol and have to be un-munged here.
Note that finish_dynamic_symbol sometimes turns dynamic symbols
into non-dynamic ones, so we initialize st_shndx to -1 in
mark_exported_functions and check to see if it was overwritten
here instead of just checking eh->dynindx. */
if (hh->want_opd && hh->st_shndx != -1)
{
/* Restore the saved value and section index. */
sym->st_value = hh->st_value;
sym->st_shndx = hh->st_shndx;
}
return 1;
}
/* Finish up dynamic symbol handling. We set the contents of various
dynamic sections here. */
static bool
elf64_hppa_finish_dynamic_symbol (bfd *output_bfd,
struct bfd_link_info *info,
struct elf_link_hash_entry *eh,
Elf_Internal_Sym *sym)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
asection *stub, *splt, *sopd, *spltrel;
struct elf64_hppa_link_hash_table *hppa_info;
hppa_info = hppa_link_hash_table (info);
stub = hppa_info->stub_sec;
splt = hppa_info->root.splt;
sopd = hppa_info->opd_sec;
spltrel = hppa_info->root.srelplt;
/* 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 (hh->want_opd)
{
BFD_ASSERT (sopd != NULL);
/* Save away the original value and section index so that we
can restore them later. */
hh->st_value = sym->st_value;
hh->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 = (hh->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 (hh->want_plt
&& elf64_hppa_dynamic_symbol_p (eh, info))
{
bfd_vma value;
Elf_Internal_Rela rel;
bfd_byte *loc;
BFD_ASSERT (splt != NULL && spltrel != NULL);
/* 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 (bfd_link_pic (info) && eh->root.type == bfd_link_hash_undefined)
value = 0;
else
value = (eh->root.u.def.value + eh->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 + hh->plt_offset);
value = _bfd_get_gp_value (info->output_bfd);
bfd_put_64 (splt->owner, value, splt->contents + hh->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 = (hh->plt_offset + splt->output_offset
+ splt->output_section->vma);
rel.r_info = ELF64_R_INFO (hh->eh.dynindx, R_PARISC_IPLT);
rel.r_addend = 0;
loc = spltrel->contents;
loc += spltrel->reloc_count++ * sizeof (Elf64_External_Rela);
bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc);
}
/* Initialize an external call stub entry if requested. */
if (hh->want_stub
&& elf64_hppa_dynamic_symbol_p (eh, info))
{
bfd_vma value;
int insn;
unsigned int max_offset;
BFD_ASSERT (stub != NULL);
/* 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 + hh->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 = hh->plt_offset - hppa_info->gp_offset;
insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset);
if (output_bfd->arch_info->mach >= 25)
{
/* Wide mode allows 16 bit offsets. */
max_offset = 32768;
insn &= ~ 0xfff1;
insn |= re_assemble_16 ((int) value);
}
else
{
max_offset = 8192;
insn &= ~ 0x3ff1;
insn |= re_assemble_14 ((int) value);
}
if ((value & 7) || value + max_offset >= 2*max_offset - 8)
{
_bfd_error_handler
/* xgettext:c-format */
(_("stub entry for %s cannot load .plt, dp offset = %" PRId64),
hh->eh.root.root.string, (int64_t) value);
return false;
}
bfd_put_32 (stub->owner, (bfd_vma) insn,
stub->contents + hh->stub_offset);
/* Fix up the second ldd instruction. */
value += 8;
insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset + 8);
if (output_bfd->arch_info->mach >= 25)
{
insn &= ~ 0xfff1;
insn |= re_assemble_16 ((int) value);
}
else
{
insn &= ~ 0x3ff1;
insn |= re_assemble_14 ((int) value);
}
bfd_put_32 (stub->owner, (bfd_vma) insn,
stub->contents + hh->stub_offset + 8);
}
return true;
}
/* The .opd section contains FPTRs for each function this file
exports. Initialize the FPTR entries. */
static bool
elf64_hppa_finalize_opd (struct elf_link_hash_entry *eh, void *data)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
struct bfd_link_info *info = (struct bfd_link_info *)data;
struct elf64_hppa_link_hash_table *hppa_info;
asection *sopd;
asection *sopdrel;
hppa_info = hppa_link_hash_table (info);
if (hppa_info == NULL)
return false;
sopd = hppa_info->opd_sec;
sopdrel = hppa_info->opd_rel_sec;
if (hh->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 + hh->opd_offset, 0, 16);
value = (eh->root.u.def.value
+ eh->root.u.def.section->output_section->vma
+ eh->root.u.def.section->output_offset);
/* The next word is the address of the function. */
bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 16);
/* The last word is our local __gp value. */
value = _bfd_get_gp_value (info->output_bfd);
bfd_put_64 (sopd->owner, value, sopd->contents + hh->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 (bfd_link_pic (info) && hh->want_opd)
{
Elf_Internal_Rela rel;
bfd_byte *loc;
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 (eh->dynindx != -1)
dynindx = eh->dynindx;
else
dynindx
= _bfd_elf_link_lookup_local_dynindx (info, hh->owner,
hh->sym_indx);
/* The offset of this relocation is the absolute address of the
.opd entry for this symbol. */
rel.r_offset = (hh->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 (eh)
{
char *new_name;
struct elf_link_hash_entry *nh;
new_name = concat (".", eh->root.root.string, NULL);
nh = elf_link_hash_lookup (elf_hash_table (info),
new_name, true, true, false);
/* All we really want from the new symbol is its dynamic
symbol index. */
if (nh)
dynindx = nh->dynindx;
free (new_name);
}
rel.r_addend = 0;
rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_EPLT);
loc = sopdrel->contents;
loc += sopdrel->reloc_count++ * sizeof (Elf64_External_Rela);
bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc);
}
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 bool
elf64_hppa_finalize_dlt (struct elf_link_hash_entry *eh, void *data)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
struct bfd_link_info *info = (struct bfd_link_info *)data;
struct elf64_hppa_link_hash_table *hppa_info;
asection *sdlt, *sdltrel;
hppa_info = hppa_link_hash_table (info);
if (hppa_info == NULL)
return false;
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 (! bfd_link_pic (info) && hh && hh->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 (hh->want_opd)
{
value = (hh->opd_offset
+ hppa_info->opd_sec->output_offset
+ hppa_info->opd_sec->output_section->vma);
}
else if ((eh->root.type == bfd_link_hash_defined
|| eh->root.type == bfd_link_hash_defweak)
&& eh->root.u.def.section)
{
value = eh->root.u.def.value + eh->root.u.def.section->output_offset;
if (eh->root.u.def.section->output_section)
value += eh->root.u.def.section->output_section->vma;
else
value += eh->root.u.def.section->vma;
}
else
/* We have an undefined function reference. */
value = 0;
/* 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 + hh->dlt_offset);
}
/* Create a relocation for the DLT entry associated with this symbol.
When building a shared library the symbol does not have to be dynamic. */
if (hh->want_dlt
&& (elf64_hppa_dynamic_symbol_p (eh, info) || bfd_link_pic (info)))
{
Elf_Internal_Rela rel;
bfd_byte *loc;
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 (eh && eh->dynindx != -1)
dynindx = eh->dynindx;
else
dynindx
= _bfd_elf_link_lookup_local_dynindx (info, hh->owner,
hh->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 = (hh->dlt_offset + sdlt->output_offset
+ sdlt->output_section->vma);
if (eh && eh->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;
loc = sdltrel->contents;
loc += sdltrel->reloc_count++ * sizeof (Elf64_External_Rela);
bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc);
}
return true;
}
/* Finalize the dynamic relocations. Specifically the FPTR relocations
for dynamic functions used to initialize static data. */
static bool
elf64_hppa_finalize_dynreloc (struct elf_link_hash_entry *eh,
void *data)
{
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
struct bfd_link_info *info = (struct bfd_link_info *)data;
struct elf64_hppa_link_hash_table *hppa_info;
int dynamic_symbol;
dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, info);
if (!dynamic_symbol && !bfd_link_pic (info))
return true;
if (hh->reloc_entries)
{
struct elf64_hppa_dyn_reloc_entry *rent;
int dynindx;
hppa_info = hppa_link_hash_table (info);
if (hppa_info == NULL)
return false;
/* 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 (eh->dynindx != -1)
dynindx = eh->dynindx;
else
dynindx
= _bfd_elf_link_lookup_local_dynindx (info, hh->owner,
hh->sym_indx);
for (rent = hh->reloc_entries; rent; rent = rent->next)
{
Elf_Internal_Rela rel;
bfd_byte *loc;
/* Allocate one iff we are building a shared library, the relocation
isn't a R_PARISC_FPTR64, or we don't want an opd entry. */
if (!bfd_link_pic (info)
&& rent->type == R_PARISC_FPTR64 && hh->want_opd)
continue;
/* 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 (bfd_link_pic (info)
&& rent->type == R_PARISC_FPTR64 && hh->want_opd)
{
bfd_vma value, value2;
/* First compute the address of the opd entry for this symbol. */
value = (hh->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);
loc = hppa_info->other_rel_sec->contents;
loc += (hppa_info->other_rel_sec->reloc_count++
* sizeof (Elf64_External_Rela));
bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc);
}
}
return true;
}
/* Used to decide how to sort relocs in an optimal manner for the
dynamic linker, before writing them out. */
static enum elf_reloc_type_class
elf64_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
const asection *rel_sec ATTRIBUTE_UNUSED,
const Elf_Internal_Rela *rela)
{
if (ELF64_R_SYM (rela->r_info) == STN_UNDEF)
return reloc_class_relative;
switch ((int) ELF64_R_TYPE (rela->r_info))
{
case R_PARISC_IPLT:
return reloc_class_plt;
case R_PARISC_COPY:
return reloc_class_copy;
default:
return reloc_class_normal;
}
}
/* Finish up the dynamic sections. */
static bool
elf64_hppa_finish_dynamic_sections (bfd *output_bfd,
struct bfd_link_info *info)
{
bfd *dynobj;
asection *sdyn;
struct elf64_hppa_link_hash_table *hppa_info;
hppa_info = hppa_link_hash_table (info);
if (hppa_info == NULL)
return false;
/* Finalize the contents of the .opd section. */
elf_link_hash_traverse (elf_hash_table (info),
elf64_hppa_finalize_opd,
info);
elf_link_hash_traverse (elf_hash_table (info),
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. */
elf_link_hash_traverse (elf_hash_table (info),
elf64_hppa_finalize_dlt,
info);
sdyn = bfd_get_linker_section (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->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");
if (!s)
return false;
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->root.srelplt;
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->root.srelplt;
dyn.d_un.d_val = s->size;
bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_RELA:
s = hppa_info->other_rel_sec;
if (! s || ! s->size)
s = hppa_info->dlt_rel_sec;
if (! s || ! s->size)
s = hppa_info->opd_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->size;
s = hppa_info->dlt_rel_sec;
dyn.d_un.d_val += s->size;
s = hppa_info->opd_rel_sec;
dyn.d_un.d_val += s->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->root.srelplt;
dyn.d_un.d_val += s->size;
bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
}
}
}
return true;
}
/* Support for core dump NOTE sections. */
static bool
elf64_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
{
int offset;
size_t size;
switch (note->descsz)
{
default:
return false;
case 760: /* Linux/hppa */
/* pr_cursig */
elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
/* pr_pid */
elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32);
/* pr_reg */
offset = 112;
size = 640;
break;
}
/* Make a ".reg/999" section. */
return _bfd_elfcore_make_pseudosection (abfd, ".reg",
size, note->descpos + offset);
}
static bool
elf64_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
{
char * command;
int n;
switch (note->descsz)
{
default:
return false;
case 136: /* Linux/hppa elf_prpsinfo. */
elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
}
/* Note that for some reason, a spurious space is tacked
onto the end of the args in some (at least one anyway)
implementations, so strip it off if it exists. */
command = elf_tdata (abfd)->core->command;
n = strlen (command);
if (0 < n && command[n - 1] == ' ')
command[n - 1] = '\0';
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 (bfd *abfd,
struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
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;
}
static bool
elf64_hppa_allow_non_load_phdr (bfd *abfd ATTRIBUTE_UNUSED,
const Elf_Internal_Phdr *phdr ATTRIBUTE_UNUSED,
unsigned int count ATTRIBUTE_UNUSED)
{
return true;
}
/* 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 bool
elf64_hppa_modify_segment_map (bfd *abfd, struct bfd_link_info *info)
{
struct elf_segment_map *m;
m = elf_seg_map (abfd);
if (info != NULL && !info->user_phdrs && m != NULL && m->p_type != PT_PHDR)
{
m = ((struct elf_segment_map *)
bfd_zalloc (abfd, (bfd_size_type) 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_seg_map (abfd);
elf_seg_map (abfd) = m;
}
for (m = elf_seg_map (abfd) ; 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;
}
/* Called when writing out an object file to decide the type of a
symbol. */
static int
elf64_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym,
int type)
{
if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
return STT_PARISC_MILLI;
else
return type;
}
/* Support HP specific sections for core files. */
static bool
elf64_hppa_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int sec_index,
const char *typename)
{
if (hdr->p_type == PT_HP_CORE_KERNEL)
{
asection *sect;
if (!_bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename))
return false;
sect = bfd_make_section_anyway (abfd, ".kernel");
if (sect == NULL)
return false;
sect->size = hdr->p_filesz;
sect->filepos = hdr->p_offset;
sect->flags = SEC_HAS_CONTENTS | SEC_READONLY;
return true;
}
if (hdr->p_type == PT_HP_CORE_PROC)
{
int sig;
if (bfd_seek (abfd, hdr->p_offset, SEEK_SET) != 0)
return false;
if (bfd_read (&sig, 4, abfd) != 4)
return false;
elf_tdata (abfd)->core->signal = sig;
if (!_bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename))
return false;
/* GDB uses the ".reg" section to read register contents. */
return _bfd_elfcore_make_pseudosection (abfd, ".reg", hdr->p_filesz,
hdr->p_offset);
}
if (hdr->p_type == PT_HP_CORE_LOADABLE
|| hdr->p_type == PT_HP_CORE_STACK
|| hdr->p_type == PT_HP_CORE_MMF)
hdr->p_type = PT_LOAD;
return _bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename);
}
/* Hook called by the linker routine which adds symbols from an object
file. HP's libraries define symbols with HP specific section
indices, which we have to handle. */
static bool
elf_hppa_add_symbol_hook (bfd *abfd,
struct bfd_link_info *info ATTRIBUTE_UNUSED,
Elf_Internal_Sym *sym,
const char **namep ATTRIBUTE_UNUSED,
flagword *flagsp ATTRIBUTE_UNUSED,
asection **secp,
bfd_vma *valp)
{
unsigned int sec_index = sym->st_shndx;
switch (sec_index)
{
case SHN_PARISC_ANSI_COMMON:
*secp = bfd_make_section_old_way (abfd, ".PARISC.ansi.common");
(*secp)->flags |= SEC_IS_COMMON;
*valp = sym->st_size;
break;
case SHN_PARISC_HUGE_COMMON:
*secp = bfd_make_section_old_way (abfd, ".PARISC.huge.common");
(*secp)->flags |= SEC_IS_COMMON;
*valp = sym->st_size;
break;
}
return true;
}
static bool
elf_hppa_unmark_useless_dynamic_symbols (struct elf_link_hash_entry *h,
void *data)
{
struct bfd_link_info *info = data;
/* If we are not creating a shared library, and this symbol is
referenced by a shared library but is not defined anywhere, then
the generic code will warn that it is undefined.
This behavior is undesirable on HPs since the standard shared
libraries contain references to undefined symbols.
So we twiddle the flags associated with such symbols so that they
will not trigger the warning. ?!? FIXME. This is horribly fragile.
Ultimately we should have better controls over the generic ELF BFD
linker code. */
if (! bfd_link_relocatable (info)
&& info->unresolved_syms_in_shared_libs != RM_IGNORE
&& h->root.type == bfd_link_hash_undefined
&& h->ref_dynamic
&& !h->ref_regular)
{
h->ref_dynamic = 0;
h->pointer_equality_needed = 1;
}
return true;
}
static bool
elf_hppa_remark_useless_dynamic_symbols (struct elf_link_hash_entry *h,
void *data)
{
struct bfd_link_info *info = data;
/* If we are not creating a shared library, and this symbol is
referenced by a shared library but is not defined anywhere, then
the generic code will warn that it is undefined.
This behavior is undesirable on HPs since the standard shared
libraries contain references to undefined symbols.
So we twiddle the flags associated with such symbols so that they
will not trigger the warning. ?!? FIXME. This is horribly fragile.
Ultimately we should have better controls over the generic ELF BFD
linker code. */
if (! bfd_link_relocatable (info)
&& info->unresolved_syms_in_shared_libs != RM_IGNORE
&& h->root.type == bfd_link_hash_undefined
&& !h->ref_dynamic
&& !h->ref_regular
&& h->pointer_equality_needed)
{
h->ref_dynamic = 1;
h->pointer_equality_needed = 0;
}
return true;
}
static bool
elf_hppa_is_dynamic_loader_symbol (const char *name)
{
return (! strcmp (name, "__CPU_REVISION")
|| ! strcmp (name, "__CPU_KEYBITS_1")
|| ! strcmp (name, "__SYSTEM_ID_D")
|| ! strcmp (name, "__FPU_MODEL")
|| ! strcmp (name, "__FPU_REVISION")
|| ! strcmp (name, "__ARGC")
|| ! strcmp (name, "__ARGV")
|| ! strcmp (name, "__ENVP")
|| ! strcmp (name, "__TLS_SIZE_D")
|| ! strcmp (name, "__LOAD_INFO")
|| ! strcmp (name, "__systab"));
}
/* Record the lowest address for the data and text segments. */
static void
elf_hppa_record_segment_addrs (bfd *abfd,
asection *section,
void *data)
{
struct elf64_hppa_link_hash_table *hppa_info = data;
if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
{
bfd_vma value;
Elf_Internal_Phdr *p;
p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
BFD_ASSERT (p != NULL);
value = p->p_vaddr;
if (section->flags & SEC_READONLY)
{
if (value < hppa_info->text_segment_base)
hppa_info->text_segment_base = value;
}
else
{
if (value < hppa_info->data_segment_base)
hppa_info->data_segment_base = value;
}
}
}
/* Called after we have seen all the input files/sections, but before
final symbol resolution and section placement has been determined.
We use this hook to (possibly) provide a value for __gp, then we
fall back to the generic ELF final link routine. */
static bool
elf_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
{
struct stat buf;
struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info);
if (hppa_info == NULL)
return false;
if (! bfd_link_relocatable (info))
{
struct elf_link_hash_entry *gp;
bfd_vma gp_val;
/* The linker script defines a value for __gp iff it was referenced
by one of the objects being linked. First try to find the symbol
in the hash table. If that fails, just compute the value __gp
should have had. */
gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", false,
false, false);
if (gp)
{
/* Adjust the value of __gp as we may want to slide it into the
.plt section so that the stubs can access PLT entries without
using an addil sequence. */
gp->root.u.def.value += hppa_info->gp_offset;
gp_val = (gp->root.u.def.section->output_section->vma
+ gp->root.u.def.section->output_offset
+ gp->root.u.def.value);
}
else
{
asection *sec;
/* First look for a .plt section. If found, then __gp is the
address of the .plt + gp_offset.
If no .plt is found, then look for .dlt, .opd and .data (in
that order) and set __gp to the base address of whichever
section is found first. */
sec = hppa_info->root.splt;
if (sec && ! (sec->flags & SEC_EXCLUDE))
gp_val = (sec->output_offset
+ sec->output_section->vma
+ hppa_info->gp_offset);
else
{
sec = hppa_info->dlt_sec;
if (!sec || (sec->flags & SEC_EXCLUDE))
sec = hppa_info->opd_sec;
if (!sec || (sec->flags & SEC_EXCLUDE))
sec = bfd_get_section_by_name (abfd, ".data");
if (!sec || (sec->flags & SEC_EXCLUDE))
gp_val = 0;
else
gp_val = sec->output_offset + sec->output_section->vma;
}
}
/* Install whatever value we found/computed for __gp. */
_bfd_set_gp_value (abfd, gp_val);
}
/* We need to know the base of the text and data segments so that we
can perform SEGREL relocations. We will record the base addresses
when we encounter the first SEGREL relocation. */
hppa_info->text_segment_base = (bfd_vma)-1;
hppa_info->data_segment_base = (bfd_vma)-1;
/* HP's shared libraries have references to symbols that are not
defined anywhere. The generic ELF BFD linker code will complain
about such symbols.
So we detect the losing case and arrange for the flags on the symbol
to indicate that it was never referenced. This keeps the generic
ELF BFD link code happy and appears to not create any secondary
problems. Ultimately we need a way to control the behavior of the
generic ELF BFD link code better. */
elf_link_hash_traverse (elf_hash_table (info),
elf_hppa_unmark_useless_dynamic_symbols,
info);
/* Invoke the regular ELF backend linker to do all the work. */
if (!bfd_elf_final_link (abfd, info))
return false;
elf_link_hash_traverse (elf_hash_table (info),
elf_hppa_remark_useless_dynamic_symbols,
info);
/* If we're producing a final executable, sort the contents of the
unwind section. */
if (bfd_link_relocatable (info))
return true;
/* Do not attempt to sort non-regular files. This is here
especially for configure scripts and kernel builds which run
tests with "ld [...] -o /dev/null". */
if (stat (bfd_get_filename (abfd), &buf) != 0
|| !S_ISREG(buf.st_mode))
return true;
return elf_hppa_sort_unwind (abfd);
}
/* Relocate the given INSN. VALUE should be the actual value we want
to insert into the instruction, ie by this point we should not be
concerned with computing an offset relative to the DLT, PC, etc.
Instead this routine is meant to handle the bit manipulations needed
to insert the relocation into the given instruction. */
static int
elf_hppa_relocate_insn (int insn, int sym_value, unsigned int r_type)
{
switch (r_type)
{
/* This is any 22 bit branch. In PA2.0 syntax it corresponds to
the "B" instruction. */
case R_PARISC_PCREL22F:
case R_PARISC_PCREL22C:
return (insn & ~0x3ff1ffd) | re_assemble_22 (sym_value);
/* This is any 12 bit branch. */
case R_PARISC_PCREL12F:
return (insn & ~0x1ffd) | re_assemble_12 (sym_value);
/* This is any 17 bit branch. In PA2.0 syntax it also corresponds
to the "B" instruction as well as BE. */
case R_PARISC_PCREL17F:
case R_PARISC_DIR17F:
case R_PARISC_DIR17R:
case R_PARISC_PCREL17C:
case R_PARISC_PCREL17R:
return (insn & ~0x1f1ffd) | re_assemble_17 (sym_value);
/* ADDIL or LDIL instructions. */
case R_PARISC_DLTREL21L:
case R_PARISC_DLTIND21L:
case R_PARISC_LTOFF_FPTR21L:
case R_PARISC_PCREL21L:
case R_PARISC_LTOFF_TP21L:
case R_PARISC_DPREL21L:
case R_PARISC_PLTOFF21L:
case R_PARISC_DIR21L:
return (insn & ~0x1fffff) | re_assemble_21 (sym_value);
/* LDO and integer loads/stores with 14 bit displacements. */
case R_PARISC_DLTREL14R:
case R_PARISC_DLTREL14F:
case R_PARISC_DLTIND14R:
case R_PARISC_DLTIND14F:
case R_PARISC_LTOFF_FPTR14R:
case R_PARISC_PCREL14R:
case R_PARISC_PCREL14F:
case R_PARISC_LTOFF_TP14R:
case R_PARISC_LTOFF_TP14F:
case R_PARISC_DPREL14R:
case R_PARISC_DPREL14F:
case R_PARISC_PLTOFF14R:
case R_PARISC_PLTOFF14F:
case R_PARISC_DIR14R:
case R_PARISC_DIR14F:
return (insn & ~0x3fff) | low_sign_unext (sym_value, 14);
/* PA2.0W LDO and integer loads/stores with 16 bit displacements. */
case R_PARISC_LTOFF_FPTR16F:
case R_PARISC_PCREL16F:
case R_PARISC_LTOFF_TP16F:
case R_PARISC_GPREL16F:
case R_PARISC_PLTOFF16F:
case R_PARISC_DIR16F:
case R_PARISC_LTOFF16F:
return (insn & ~0xffff) | re_assemble_16 (sym_value);
/* Doubleword loads and stores with a 14 bit displacement. */
case R_PARISC_DLTREL14DR:
case R_PARISC_DLTIND14DR:
case R_PARISC_LTOFF_FPTR14DR:
case R_PARISC_LTOFF_FPTR16DF:
case R_PARISC_PCREL14DR:
case R_PARISC_PCREL16DF:
case R_PARISC_LTOFF_TP14DR:
case R_PARISC_LTOFF_TP16DF:
case R_PARISC_DPREL14DR:
case R_PARISC_GPREL16DF:
case R_PARISC_PLTOFF14DR:
case R_PARISC_PLTOFF16DF:
case R_PARISC_DIR14DR:
case R_PARISC_DIR16DF:
case R_PARISC_LTOFF16DF:
return (insn & ~0x3ff1) | (((sym_value & 0x2000) >> 13)
| ((sym_value & 0x1ff8) << 1));
/* Floating point single word load/store instructions. */
case R_PARISC_DLTREL14WR:
case R_PARISC_DLTIND14WR:
case R_PARISC_LTOFF_FPTR14WR:
case R_PARISC_LTOFF_FPTR16WF:
case R_PARISC_PCREL14WR:
case R_PARISC_PCREL16WF:
case R_PARISC_LTOFF_TP14WR:
case R_PARISC_LTOFF_TP16WF:
case R_PARISC_DPREL14WR:
case R_PARISC_GPREL16WF:
case R_PARISC_PLTOFF14WR:
case R_PARISC_PLTOFF16WF:
case R_PARISC_DIR16WF:
case R_PARISC_DIR14WR:
case R_PARISC_LTOFF16WF:
return (insn & ~0x3ff9) | (((sym_value & 0x2000) >> 13)
| ((sym_value & 0x1ffc) << 1));
default:
return insn;
}
}
/* Compute the value for a relocation (REL) during a final link stage,
then insert the value into the proper location in CONTENTS.
VALUE is a tentative value for the relocation and may be overridden
and modified here based on the specific relocation to be performed.
For example we do conversions for PC-relative branches in this routine
or redirection of calls to external routines to stubs.
The work of actually applying the relocation is left to a helper
routine in an attempt to reduce the complexity and size of this
function. */
static bfd_reloc_status_type
elf_hppa_final_link_relocate (Elf_Internal_Rela *rel,
bfd *input_bfd,
bfd *output_bfd,
asection *input_section,
bfd_byte *contents,
bfd_vma value,
struct bfd_link_info *info,
asection *sym_sec,
struct elf_link_hash_entry *eh)
{
struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info);
struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
bfd_vma *local_offsets;
Elf_Internal_Shdr *symtab_hdr;
int insn;
bfd_vma max_branch_offset = 0;
bfd_vma offset = rel->r_offset;
bfd_signed_vma addend = rel->r_addend;
reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info);
unsigned int r_symndx = ELF_R_SYM (rel->r_info);
unsigned int r_type = howto->type;
bfd_byte *hit_data = contents + offset;
if (hppa_info == NULL)
return bfd_reloc_notsupported;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
local_offsets = elf_local_got_offsets (input_bfd);
insn = bfd_get_32 (input_bfd, hit_data);
switch (r_type)
{
case R_PARISC_NONE:
break;
/* Basic function call support.
Note for a call to a function defined in another dynamic library
we want to redirect the call to a stub. */
/* PC relative relocs without an implicit offset. */
case R_PARISC_PCREL21L:
case R_PARISC_PCREL14R:
case R_PARISC_PCREL14F:
case R_PARISC_PCREL14WR:
case R_PARISC_PCREL14DR:
case R_PARISC_PCREL16F:
case R_PARISC_PCREL16WF:
case R_PARISC_PCREL16DF:
{
/* If this is a call to a function defined in another dynamic
library, then redirect the call to the local stub for this
function. */
if (sym_sec == NULL || sym_sec->output_section == NULL)
value = (hh->stub_offset + hppa_info->stub_sec->output_offset
+ hppa_info->stub_sec->output_section->vma);
/* Turn VALUE into a proper PC relative address. */
value -= (offset + input_section->output_offset
+ input_section->output_section->vma);
/* Adjust for any field selectors. */
if (r_type == R_PARISC_PCREL21L)
value = hppa_field_adjust (value, -8 + addend, e_lsel);
else if (r_type == R_PARISC_PCREL14F
|| r_type == R_PARISC_PCREL16F
|| r_type == R_PARISC_PCREL16WF
|| r_type == R_PARISC_PCREL16DF)
value = hppa_field_adjust (value, -8 + addend, e_fsel);
else
value = hppa_field_adjust (value, -8 + addend, e_rsel);
/* Apply the relocation to the given instruction. */
insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
break;
}
case R_PARISC_PCREL12F:
case R_PARISC_PCREL22F:
case R_PARISC_PCREL17F:
case R_PARISC_PCREL22C:
case R_PARISC_PCREL17C:
case R_PARISC_PCREL17R:
{
/* If this is a call to a function defined in another dynamic
library, then redirect the call to the local stub for this
function. */
if (sym_sec == NULL || sym_sec->output_section == NULL)
value = (hh->stub_offset + hppa_info->stub_sec->output_offset
+ hppa_info->stub_sec->output_section->vma);
/* Turn VALUE into a proper PC relative address. */
value -= (offset + input_section->output_offset
+ input_section->output_section->vma);
addend -= 8;
if (r_type == (unsigned int) R_PARISC_PCREL22F)
max_branch_offset = (1 << (22-1)) << 2;
else if (r_type == (unsigned int) R_PARISC_PCREL17F)
max_branch_offset = (1 << (17-1)) << 2;
else if (r_type == (unsigned int) R_PARISC_PCREL12F)
max_branch_offset = (1 << (12-1)) << 2;
/* Make sure we can reach the branch target. */
if (max_branch_offset != 0
&& value + addend + max_branch_offset >= 2*max_branch_offset)
{
_bfd_error_handler
/* xgettext:c-format */
(_("%pB(%pA+%#" PRIx64 "): cannot reach %s"),
input_bfd,
input_section,
(uint64_t) offset,
eh ? eh->root.root.string : "unknown");
bfd_set_error (bfd_error_bad_value);
return bfd_reloc_overflow;
}
/* Adjust for any field selectors. */
if (r_type == R_PARISC_PCREL17R)
value = hppa_field_adjust (value, addend, e_rsel);
else
value = hppa_field_adjust (value, addend, e_fsel);
/* All branches are implicitly shifted by 2 places. */
value >>= 2;
/* Apply the relocation to the given instruction. */
insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
break;
}
/* Indirect references to data through the DLT. */
case R_PARISC_DLTIND14R:
case R_PARISC_DLTIND14F:
case R_PARISC_DLTIND14DR:
case R_PARISC_DLTIND14WR:
case R_PARISC_DLTIND21L:
case R_PARISC_LTOFF_FPTR14R:
case R_PARISC_LTOFF_FPTR14DR:
case R_PARISC_LTOFF_FPTR14WR:
case R_PARISC_LTOFF_FPTR21L:
case R_PARISC_LTOFF_FPTR16F:
case R_PARISC_LTOFF_FPTR16WF:
case R_PARISC_LTOFF_FPTR16DF:
case R_PARISC_LTOFF_TP21L:
case R_PARISC_LTOFF_TP14R:
case R_PARISC_LTOFF_TP14F:
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:
case R_PARISC_LTOFF16F:
case R_PARISC_LTOFF16WF:
case R_PARISC_LTOFF16DF:
{
bfd_vma off;
/* If this relocation was against a local symbol, then we still
have not set up the DLT entry (it's not convenient to do so
in the "finalize_dlt" routine because it is difficult to get
to the local symbol's value).
So, if this is a local symbol (h == NULL), then we need to
fill in its DLT entry.
Similarly we may still need to set up an entry in .opd for
a local function which had its address taken. */
if (hh == NULL)
{
bfd_vma *local_opd_offsets, *local_dlt_offsets;
if (local_offsets == NULL)
abort ();
/* Now do .opd creation if needed. */
if (r_type == R_PARISC_LTOFF_FPTR14R
|| r_type == R_PARISC_LTOFF_FPTR14DR
|| r_type == R_PARISC_LTOFF_FPTR14WR
|| r_type == R_PARISC_LTOFF_FPTR21L
|| r_type == R_PARISC_LTOFF_FPTR16F
|| r_type == R_PARISC_LTOFF_FPTR16WF
|| r_type == R_PARISC_LTOFF_FPTR16DF)
{
local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info;
off = local_opd_offsets[r_symndx];
/* The last bit records whether we've already initialised
this local .opd entry. */
if ((off & 1) != 0)
{
BFD_ASSERT (off != (bfd_vma) -1);
off &= ~1;
}
else
{
local_opd_offsets[r_symndx] |= 1;
/* The first two words of an .opd entry are zero. */
memset (hppa_info->opd_sec->contents + off, 0, 16);
/* The next word is the address of the function. */
bfd_put_64 (hppa_info->opd_sec->owner, value + addend,
(hppa_info->opd_sec->contents + off + 16));
/* The last word is our local __gp value. */
value = _bfd_get_gp_value (info->output_bfd);
bfd_put_64 (hppa_info->opd_sec->owner, value,
(hppa_info->opd_sec->contents + off + 24));
}
/* The DLT value is the address of the .opd entry. */
value = (off
+ hppa_info->opd_sec->output_offset
+ hppa_info->opd_sec->output_section->vma);
addend = 0;
}
local_dlt_offsets = local_offsets;
off = local_dlt_offsets[r_symndx];
if ((off & 1) != 0)
{
BFD_ASSERT (off != (bfd_vma) -1);
off &= ~1;
}
else
{
local_dlt_offsets[r_symndx] |= 1;
bfd_put_64 (hppa_info->dlt_sec->owner,
value + addend,
hppa_info->dlt_sec->contents + off);
}
}
else
off = hh->dlt_offset;
/* We want the value of the DLT offset for this symbol, not
the symbol's actual address. Note that __gp may not point
to the start of the DLT, so we have to compute the absolute
address, then subtract out the value of __gp. */
value = (off
+ hppa_info->dlt_sec->output_offset
+ hppa_info->dlt_sec->output_section->vma);
value -= _bfd_get_gp_value (output_bfd);
/* All DLTIND relocations are basically the same at this point,
except that we need different field selectors for the 21bit
version vs the 14bit versions. */
if (r_type == R_PARISC_DLTIND21L
|| r_type == R_PARISC_LTOFF_FPTR21L
|| r_type == R_PARISC_LTOFF_TP21L)
value = hppa_field_adjust (value, 0, e_lsel);
else if (r_type == R_PARISC_DLTIND14F
|| r_type == R_PARISC_LTOFF_FPTR16F
|| r_type == R_PARISC_LTOFF_FPTR16WF
|| r_type == R_PARISC_LTOFF_FPTR16DF
|| r_type == R_PARISC_LTOFF16F
|| r_type == R_PARISC_LTOFF16DF
|| r_type == R_PARISC_LTOFF16WF
|| r_type == R_PARISC_LTOFF_TP16F
|| r_type == R_PARISC_LTOFF_TP16WF
|| r_type == R_PARISC_LTOFF_TP16DF)
value = hppa_field_adjust (value, 0, e_fsel);
else
value = hppa_field_adjust (value, 0, e_rsel);
insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
break;
}
case R_PARISC_DLTREL14R:
case R_PARISC_DLTREL14F:
case R_PARISC_DLTREL14DR:
case R_PARISC_DLTREL14WR:
case R_PARISC_DLTREL21L:
case R_PARISC_DPREL21L:
case R_PARISC_DPREL14WR:
case R_PARISC_DPREL14DR:
case R_PARISC_DPREL14R:
case R_PARISC_DPREL14F:
case R_PARISC_GPREL16F:
case R_PARISC_GPREL16WF:
case R_PARISC_GPREL16DF:
{
/* Subtract out the global pointer value to make value a DLT
relative address. */
value -= _bfd_get_gp_value (output_bfd);
/* All DLTREL relocations are basically the same at this point,
except that we need different field selectors for the 21bit
version vs the 14bit versions. */
if (r_type == R_PARISC_DLTREL21L
|| r_type == R_PARISC_DPREL21L)
value = hppa_field_adjust (value, addend, e_lrsel);
else if (r_type == R_PARISC_DLTREL14F
|| r_type == R_PARISC_DPREL14F
|| r_type == R_PARISC_GPREL16F
|| r_type == R_PARISC_GPREL16WF
|| r_type == R_PARISC_GPREL16DF)
value = hppa_field_adjust (value, addend, e_fsel);
else
value = hppa_field_adjust (value, addend, e_rrsel);
insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
break;
}
case R_PARISC_DIR21L:
case R_PARISC_DIR17R:
case R_PARISC_DIR17F:
case R_PARISC_DIR14R:
case R_PARISC_DIR14F:
case R_PARISC_DIR14WR:
case R_PARISC_DIR14DR:
case R_PARISC_DIR16F:
case R_PARISC_DIR16WF:
case R_PARISC_DIR16DF:
{
/* All DIR relocations are basically the same at this point,
except that branch offsets need to be divided by four, and
we need different field selectors. Note that we don't
redirect absolute calls to local stubs. */
if (r_type == R_PARISC_DIR21L)
value = hppa_field_adjust (value, addend, e_lrsel);
else if (r_type == R_PARISC_DIR17F
|| r_type == R_PARISC_DIR16F
|| r_type == R_PARISC_DIR16WF
|| r_type == R_PARISC_DIR16DF
|| r_type == R_PARISC_DIR14F)
value = hppa_field_adjust (value, addend, e_fsel);
else
value = hppa_field_adjust (value, addend, e_rrsel);
if (r_type == R_PARISC_DIR17R || r_type == R_PARISC_DIR17F)
/* All branches are implicitly shifted by 2 places. */
value >>= 2;
insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
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:
{
/* We want the value of the PLT offset for this symbol, not
the symbol's actual address. Note that __gp may not point
to the start of the DLT, so we have to compute the absolute
address, then subtract out the value of __gp. */
value = (hh->plt_offset
+ hppa_info->root.splt->output_offset
+ hppa_info->root.splt->output_section->vma);
value -= _bfd_get_gp_value (output_bfd);
/* All PLTOFF relocations are basically the same at this point,
except that we need different field selectors for the 21bit
version vs the 14bit versions. */
if (r_type == R_PARISC_PLTOFF21L)
value = hppa_field_adjust (value, addend, e_lrsel);
else if (r_type == R_PARISC_PLTOFF14F
|| r_type == R_PARISC_PLTOFF16F
|| r_type == R_PARISC_PLTOFF16WF
|| r_type == R_PARISC_PLTOFF16DF)
value = hppa_field_adjust (value, addend, e_fsel);
else
value = hppa_field_adjust (value, addend, e_rrsel);
insn = elf_hppa_relocate_insn (insn, (int) value, r_type);
break;
}
case R_PARISC_LTOFF_FPTR32:
{
/* FIXME: There used to be code here to create the FPTR itself if
the relocation was against a local symbol. But the code could
never have worked. If the assert below is ever triggered then
the code will need to be reinstated and fixed so that it does
what is needed. */
BFD_ASSERT (hh != NULL);
/* We want the value of the DLT offset for this symbol, not
the symbol's actual address. Note that __gp may not point
to the start of the DLT, so we have to compute the absolute
address, then subtract out the value of __gp. */
value = (hh->dlt_offset
+ hppa_info->dlt_sec->output_offset
+ hppa_info->dlt_sec->output_section->vma);
value -= _bfd_get_gp_value (output_bfd);
bfd_put_32 (input_bfd, value, hit_data);
return bfd_reloc_ok;
}
case R_PARISC_LTOFF_FPTR64:
case R_PARISC_LTOFF_TP64:
{
/* We may still need to create the FPTR itself if it was for
a local symbol. */
if (eh == NULL && r_type == R_PARISC_LTOFF_FPTR64)
{
/* The first two words of an .opd entry are zero. */
memset (hppa_info->opd_sec->contents + hh->opd_offset, 0, 16);
/* The next word is the address of the function. */
bfd_put_64 (hppa_info->opd_sec->owner, value + addend,
(hppa_info->opd_sec->contents
+ hh->opd_offset + 16));
/* The last word is our local __gp value. */
value = _bfd_get_gp_value (info->output_bfd);
bfd_put_64 (hppa_info->opd_sec->owner, value,
hppa_info->opd_sec->contents + hh->opd_offset + 24);
/* The DLT value is the address of the .opd entry. */
value = (hh->opd_offset
+ hppa_info->opd_sec->output_offset
+ hppa_info->opd_sec->output_section->vma);
bfd_put_64 (hppa_info->dlt_sec->owner,
value,
hppa_info->dlt_sec->contents + hh->dlt_offset);
}
/* We want the value of the DLT offset for this symbol, not
the symbol's actual address. Note that __gp may not point
to the start of the DLT, so we have to compute the absolute
address, then subtract out the value of __gp. */
value = (hh->dlt_offset
+ hppa_info->dlt_sec->output_offset
+ hppa_info->dlt_sec->output_section->vma);
value -= _bfd_get_gp_value (output_bfd);
bfd_put_64 (input_bfd, value, hit_data);
return bfd_reloc_ok;
}
case R_PARISC_DIR32:
bfd_put_32 (input_bfd, value + addend, hit_data);
return bfd_reloc_ok;
case R_PARISC_DIR64:
bfd_put_64 (input_bfd, value + addend, hit_data);
return bfd_reloc_ok;
case R_PARISC_GPREL64:
/* Subtract out the global pointer value to make value a DLT
relative address. */
value -= _bfd_get_gp_value (output_bfd);
bfd_put_64 (input_bfd, value + addend, hit_data);
return bfd_reloc_ok;
case R_PARISC_LTOFF64:
/* We want the value of the DLT offset for this symbol, not
the symbol's actual address. Note that __gp may not point
to the start of the DLT, so we have to compute the absolute
address, then subtract out the value of __gp. */
value = (hh->dlt_offset
+ hppa_info->dlt_sec->output_offset
+ hppa_info->dlt_sec->output_section->vma);
value -= _bfd_get_gp_value (output_bfd);
bfd_put_64 (input_bfd, value + addend, hit_data);
return bfd_reloc_ok;
case R_PARISC_PCREL32:
{
/* If this is a call to a function defined in another dynamic
library, then redirect the call to the local stub for this
function. */
if (sym_sec == NULL || sym_sec->output_section == NULL)
value = (hh->stub_offset + hppa_info->stub_sec->output_offset
+ hppa_info->stub_sec->output_section->vma);
/* Turn VALUE into a proper PC relative address. */
value -= (offset + input_section->output_offset
+ input_section->output_section->vma);
value += addend;
value -= 8;
bfd_put_32 (input_bfd, value, hit_data);
return bfd_reloc_ok;
}
case R_PARISC_PCREL64:
{
/* If this is a call to a function defined in another dynamic
library, then redirect the call to the local stub for this
function. */
if (sym_sec == NULL || sym_sec->output_section == NULL)
value = (hh->stub_offset + hppa_info->stub_sec->output_offset
+ hppa_info->stub_sec->output_section->vma);
/* Turn VALUE into a proper PC relative address. */
value -= (offset + input_section->output_offset
+ input_section->output_section->vma);
value += addend;
value -= 8;
bfd_put_64 (input_bfd, value, hit_data);
return bfd_reloc_ok;
}
case R_PARISC_FPTR64:
{
bfd_vma off;
/* We may still need to create the FPTR itself if it was for
a local symbol. */
if (hh == NULL)
{
bfd_vma *local_opd_offsets;
if (local_offsets == NULL)
abort ();
local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info;
off = local_opd_offsets[r_symndx];
/* The last bit records whether we've already initialised
this local .opd entry. */
if ((off & 1) != 0)
{
BFD_ASSERT (off != (bfd_vma) -1);
off &= ~1;
}
else
{
/* The first two words of an .opd entry are zero. */
memset (hppa_info->opd_sec->contents + off, 0, 16);
/* The next word is the address of the function. */
bfd_put_64 (hppa_info->opd_sec->owner, value + addend,
(hppa_info->opd_sec->contents + off + 16));
/* The last word is our local __gp value. */
value = _bfd_get_gp_value (info->output_bfd);
bfd_put_64 (hppa_info->opd_sec->owner, value,
hppa_info->opd_sec->contents + off + 24);
}
}
else
off = hh->opd_offset;
if (hh == NULL || hh->want_opd)
/* We want the value of the OPD offset for this symbol. */
value = (off
+ hppa_info->opd_sec->output_offset
+ hppa_info->opd_sec->output_section->vma);
else
/* We want the address of the symbol. */
value += addend;
bfd_put_64 (input_bfd, value, hit_data);
return bfd_reloc_ok;
}
case R_PARISC_SECREL32:
if (sym_sec && sym_sec->output_section)
value -= sym_sec->output_section->vma;
bfd_put_32 (input_bfd, value + addend, hit_data);
return bfd_reloc_ok;
case R_PARISC_SEGREL32:
case R_PARISC_SEGREL64:
{
/* If this is the first SEGREL relocation, then initialize
the segment base values. */
if (hppa_info->text_segment_base == (bfd_vma) -1)
bfd_map_over_sections (output_bfd, elf_hppa_record_segment_addrs,
hppa_info);
/* VALUE holds the absolute address. We want to include the
addend, then turn it into a segment relative address.
The segment is derived from SYM_SEC. We assume that there are
only two segments of note in the resulting executable/shlib.
A readonly segment (.text) and a readwrite segment (.data). */
value += addend;
if (sym_sec->flags & SEC_CODE)
value -= hppa_info->text_segment_base;
else
value -= hppa_info->data_segment_base;
if (r_type == R_PARISC_SEGREL32)
bfd_put_32 (input_bfd, value, hit_data);
else
bfd_put_64 (input_bfd, value, hit_data);
return bfd_reloc_ok;
}
/* Something we don't know how to handle. */
default:
return bfd_reloc_notsupported;
}
/* Update the instruction word. */
bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
return bfd_reloc_ok;
}
/* Relocate an HPPA ELF section. */
static int
elf64_hppa_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;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
struct elf64_hppa_link_hash_table *hppa_info;
hppa_info = hppa_link_hash_table (info);
if (hppa_info == NULL)
return false;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
rel = relocs;
relend = relocs + input_section->reloc_count;
for (; rel < relend; rel++)
{
int r_type;
reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info);
unsigned long r_symndx;
struct elf_link_hash_entry *eh;
Elf_Internal_Sym *sym;
asection *sym_sec;
bfd_vma relocation;
bfd_reloc_status_type r;
r_type = ELF_R_TYPE (rel->r_info);
if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)
{
bfd_set_error (bfd_error_bad_value);
return false;
}
if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
|| r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
continue;
/* This is a final link. */
r_symndx = ELF_R_SYM (rel->r_info);
eh = NULL;
sym = NULL;
sym_sec = NULL;
if (r_symndx < symtab_hdr->sh_info)
{
/* This is a local symbol, hh defaults to NULL. */
sym = local_syms + r_symndx;
sym_sec = local_sections[r_symndx];
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rel);
}
else
{
/* This is not a local symbol. */
struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
/* It seems this can happen with erroneous or unsupported
input (mixing a.out and elf in an archive, for example.) */
if (sym_hashes == NULL)
return false;
eh = sym_hashes[r_symndx - symtab_hdr->sh_info];
if (info->wrap_hash != NULL
&& (input_section->flags & SEC_DEBUGGING) != 0)
eh = ((struct elf_link_hash_entry *)
unwrap_hash_lookup (info, input_bfd, &eh->root));
while (eh->root.type == bfd_link_hash_indirect
|| eh->root.type == bfd_link_hash_warning)
eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
relocation = 0;
if (eh->root.type == bfd_link_hash_defined
|| eh->root.type == bfd_link_hash_defweak)
{
sym_sec = eh->root.u.def.section;
if (sym_sec != NULL
&& sym_sec->output_section != NULL)
relocation = (eh->root.u.def.value
+ sym_sec->output_section->vma
+ sym_sec->output_offset);
}
else if (eh->root.type == bfd_link_hash_undefweak)
;
else if (info->unresolved_syms_in_objects == RM_IGNORE
&& ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
;
else if (!bfd_link_relocatable (info)
&& elf_hppa_is_dynamic_loader_symbol (eh->root.root.string))
continue;
else if (!bfd_link_relocatable (info))
{
bool err;
err = (info->unresolved_syms_in_objects == RM_DIAGNOSE
&& !info->warn_unresolved_syms)
|| ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT;
info->callbacks->undefined_symbol
(info, eh->root.root.string, input_bfd,
input_section, rel->r_offset, err);
}
if (!bfd_link_relocatable (info)
&& relocation == 0
&& eh->root.type != bfd_link_hash_defined
&& eh->root.type != bfd_link_hash_defweak
&& eh->root.type != bfd_link_hash_undefweak)
{
if (info->unresolved_syms_in_objects == RM_IGNORE
&& ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
&& eh->type == STT_PARISC_MILLI)
info->callbacks->undefined_symbol
(info, eh_name (eh), input_bfd,
input_section, rel->r_offset, false);
}
}
if (sym_sec != NULL && discarded_section (sym_sec))
RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
rel, 1, relend, howto, 0, contents);
if (bfd_link_relocatable (info))
continue;
r = elf_hppa_final_link_relocate (rel, input_bfd, output_bfd,
input_section, contents,
relocation, info, sym_sec,
eh);
if (r != bfd_reloc_ok)
{
switch (r)
{
default:
abort ();
case bfd_reloc_overflow:
{
const char *sym_name;
if (eh != NULL)
sym_name = NULL;
else
{
sym_name = bfd_elf_string_from_elf_section (input_bfd,
symtab_hdr->sh_link,
sym->st_name);
if (sym_name == NULL)
return false;
if (*sym_name == '\0')
sym_name = bfd_section_name (sym_sec);
}
(*info->callbacks->reloc_overflow)
(info, (eh ? &eh->root : NULL), sym_name, howto->name,
(bfd_vma) 0, input_bfd, input_section, rel->r_offset);
}
break;
}
}
}
return true;
}
static const struct bfd_elf_special_section elf64_hppa_special_sections[] =
{
{ STRING_COMMA_LEN (".tbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_HP_TLS },
{ STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
{ STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
{ STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT },
{ STRING_COMMA_LEN (".dlt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT },
{ STRING_COMMA_LEN (".sdata"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT },
{ STRING_COMMA_LEN (".sbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT },
{ NULL, 0, 0, 0, 0 }
};
/* 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, 3,
ELFCLASS64, EV_CURRENT,
bfd_elf64_write_out_phdrs,
bfd_elf64_write_shdrs_and_ehdr,
bfd_elf64_checksum_contents,
bfd_elf64_write_relocs,
bfd_elf64_swap_symbol_in,
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,
bfd_elf64_swap_reloc_in,
bfd_elf64_swap_reloc_out,
bfd_elf64_swap_reloca_in,
bfd_elf64_swap_reloca_out
};
#define TARGET_BIG_SYM hppa_elf64_vec
#define TARGET_BIG_NAME "elf64-hppa"
#define ELF_ARCH bfd_arch_hppa
#define ELF_TARGET_ID HPPA64_ELF_DATA
#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 ELF_OSABI ELFOSABI_HPUX
#define bfd_elf64_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
#define bfd_elf64_bfd_reloc_name_lookup elf_hppa_reloc_name_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_init_file_header elf64_hppa_init_file_header
#define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
#define elf_backend_adjust_dynamic_symbol \
elf64_hppa_adjust_dynamic_symbol
#define elf_backend_late_size_sections elf64_hppa_late_size_sections
#define elf_backend_finish_dynamic_symbol \
elf64_hppa_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
elf64_hppa_finish_dynamic_sections
#define elf_backend_grok_prstatus elf64_hppa_grok_prstatus
#define elf_backend_grok_psinfo elf64_hppa_grok_psinfo
/* 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_allow_non_load_phdr \
elf64_hppa_allow_non_load_phdr
#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_type_change_ok true
#define elf_backend_get_symbol_type elf64_hppa_elf_get_symbol_type
#define elf_backend_reloc_type_class elf64_hppa_reloc_type_class
#define elf_backend_rela_normal 1
#define elf_backend_special_sections elf64_hppa_special_sections
#define elf_backend_action_discarded elf_hppa_action_discarded
#define elf_backend_section_from_phdr elf64_hppa_section_from_phdr
#define elf64_bed elf64_hppa_hpux_bed
#include "elf64-target.h"
#undef TARGET_BIG_SYM
#define TARGET_BIG_SYM hppa_elf64_linux_vec
#undef TARGET_BIG_NAME
#define TARGET_BIG_NAME "elf64-hppa-linux"
#undef ELF_OSABI
#define ELF_OSABI ELFOSABI_GNU
#undef elf64_bed
#define elf64_bed elf64_hppa_linux_bed
#undef elf_backend_special_sections
#define elf_backend_special_sections (elf64_hppa_special_sections + 1)
#include "elf64-target.h"
|